RelativePath="..\..\simgear\screen\extensions.hxx"
>
</File>
- <File
- RelativePath="..\..\simgear\screen\GLBitmaps.cxx"
- >
- </File>
- <File
- RelativePath="..\..\simgear\screen\GLBitmaps.h"
- >
- </File>
<File
RelativePath="..\..\simgear\screen\jpgfactory.cxx"
>
RelativePath="..\..\simgear\screen\jpgfactory.hxx"
>
</File>
- <File
- RelativePath="..\..\simgear\screen\RenderTexture.cpp"
- >
- </File>
- <File
- RelativePath="..\..\simgear\screen\RenderTexture.h"
- >
- </File>
<File
RelativePath="..\..\simgear\screen\screen-dump.cxx"
>
RelativePath="..\..\simgear\screen\screen-dump.hxx"
>
</File>
- <File
- RelativePath="..\..\simgear\screen\shader.cpp"
- >
- </File>
- <File
- RelativePath="..\..\simgear\screen\shader.h"
- >
- </File>
<File
RelativePath="..\..\simgear\screen\tr.cxx"
>
RelativePath="..\..\simgear\screen\tr.h"
>
</File>
- <File
- RelativePath="..\..\simgear\screen\win32-printer.h"
- >
- </File>
</Filter>
<Filter
Name="Lib_sgserial"
<Filter
Name="Lib_sgsky"
>
- <File
- RelativePath="..\..\simgear\scene\sky\bbcache.cxx"
- >
- </File>
- <File
- RelativePath="..\..\simgear\scene\sky\bbcache.hxx"
- >
- </File>
<File
RelativePath="..\..\simgear\scene\sky\cloud.cxx"
>
sky.hxx \
sphere.hxx \
stars.hxx \
- bbcache.hxx \
cloudfield.hxx \
newcloud.hxx \
CloudShaderGeometry.hxx
sky.cxx \
sphere.cxx \
stars.cxx \
- bbcache.cxx \
cloudfield.cxx \
newcloud.cxx \
CloudShaderGeometry.cxx
+++ /dev/null
-// Billboard helper class
-//
-// Written by Harald JOHNSEN, started April 2005.
-//
-// Copyright (C) 2005 Harald JOHNSEN - hjohnsen@evc.net
-//
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-//
-//
-
-#ifdef HAVE_CONFIG_H
-# include <simgear_config.h>
-#endif
-
-#include <simgear/compiler.h>
-#include <simgear/debug/logstream.hxx>
-
-#include <plib/sg.h>
-#include <simgear/screen/extensions.hxx>
-#include <simgear/screen/RenderTexture.h>
-#include <osg/GLU>
-
-#include "bbcache.hxx"
-
-
-/*
-memory usage :
-size 1 tex 8 tex 32 tex 64 tex
-64x64x4 16k 128k 512k 1Mo
-128x128x4 64k 512k 2Mo 4Mo
-256x256x4 256k 2Mo 8Mo 16Mo
-*/
-
-void SGBbCache::freeTextureMemory(void) {
-
- if( bbListCount ) {
- for(int i = 0 ; i < bbListCount ; i++) {
- bbList[i].cldID = 0;
- if(bbList[i].texID)
- glDeleteTextures(1, & bbList[i].texID);
- }
- delete [] bbList;
- }
- bbListCount = 0;
- cacheSizeKb = 0;
- textureWH = 0;
-}
-
-bool SGBbCache::allocTextureMemory(int cacheCount, int textureDimension) {
- textureWH = textureDimension;
- bbListCount = cacheCount;
- bbList = new bbInfo[bbListCount];
- for(int i = 0 ; i < bbListCount ; i++) {
- bbList[i].cldID = 0;
- bbList[i].texID = 0;
- glGenTextures(1, &bbList[i].texID);
- glBindTexture(GL_TEXTURE_2D, bbList[i].texID);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8,
- textureDimension, textureDimension, 0, GL_RGB, GL_FLOAT, NULL);
-
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- }
- glBindTexture(GL_TEXTURE_2D, 0);
- cacheSizeKb = (textureDimension * textureDimension * 4);
- cacheSizeKb *= cacheCount;
- cacheSizeKb /= 1024;
- if(rtAvailable) {
- if( rt->BeginCapture() ) {
- glViewport(0, 0, textureDimension, textureDimension);
- rt->EndCapture();
- }
- }
- return true;
-}
-
-SGBbCache::SGBbCache(void) :
- bbListCount(0),
- textureWH(0),
- cacheSizeKb(0),
- builtBBCount(0),
- frameNumber(0),
- rt(0),
- rtAvailable(false),
- maxImpostorRegenFrame(20)
-{
-}
-
-SGBbCache::~SGBbCache(void) {
- delete rt;
- freeTextureMemory();
-}
-
-
-void SGBbCache::init(int cacheCount) {
- GLint colorBits = 0;
- glGetIntegerv( GL_BLUE_BITS, &colorBits );
-
- rt = new RenderTexture();
- // don't use default rtt on nvidia/win because of poor performance of glCopyTexSubImage2D
- // wihtout default pattrib params - see opengl forum
- if( colorBits < 8 )
- rt->Reset("rgba=5,5,5,1 ctt");
- else
- rt->Reset("rgba ctt");
-
-// rt->Reset("rgba tex2D ctt");
-// rt->Reset("rgba tex2D");
- if( rt->Initialize(256, 256, true) ) {
- SG_LOG(SG_ALL, SG_INFO, "bbcache:Initialize sucessfull");
- if (rt->BeginCapture())
- {
- SG_LOG(SG_ALL, SG_INFO, "bbcache:BeginCapture sucessfull, RTT available");
- rtAvailable = true;
- glViewport(0, 0, 256, 256);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluPerspective(60.0, 1, 1, 5.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glDisable(GL_LIGHTING);
- glEnable(GL_COLOR_MATERIAL);
- glDisable(GL_CULL_FACE);
- glDisable(GL_FOG);
- glDisable(GL_DEPTH_TEST);
- glClearColor(0.0, 0.0, 0.0, 0.0);
- glEnable(GL_TEXTURE_2D);
- glEnable(GL_ALPHA_TEST);
- glAlphaFunc(GL_GREATER, 0.0f);
- glEnable(GL_SMOOTH);
- glEnable(GL_BLEND);
- glBlendFunc( GL_ONE, GL_ONE_MINUS_SRC_ALPHA );
-
- rt->EndCapture();
- } else
- SG_LOG(SG_ALL, SG_WARN, "bbcache:BeginCapture failed, RTT not available for 3D clouds");
- } else
- SG_LOG(SG_ALL, SG_WARN, "bbcache:Initialize failed, RTT not available for 3D clouds");
- if( cacheCount )
- allocTextureMemory( cacheCount, 64 );
-
-}
-
-
-bool SGBbCache::setCacheSize(int count, int textureDimension) {
- if( count < 0 || count > 500)
- return false;
- freeTextureMemory();
- if( count == 0)
- return true;
-
- // only allow some reasonable dimensions
- switch(textureDimension) {
- case 0:
- // default size
- textureDimension = 256;
- break;
- case 64:
- case 128:
- case 256:
- break;
- case 512:
- // rt is 256 so higher texture size has no meaning
- textureDimension = 256;
- break;
- default:
- textureDimension = 128;
- break;
- }
- return allocTextureMemory( count, textureDimension);
-}
-
-
-bool SGBbCache::setCacheSize(int sizeKb) {
- if( sizeKb < 0 || sizeKb > 256*1024)
- return false;
- freeTextureMemory();
- if( sizeKb == 0)
- return true;
- int count = 1;
- int textureDimension = 256;
- if( sizeKb >= 8*1024 ) {
- // more than 32 256x256 textures
- textureDimension = 256;
- } else if( sizeKb >= 2*1024 ) {
- // more than 32 128x128 textures
- textureDimension = 128;
- } else {
- // don't go under 64x64 textures
- textureDimension = 64;
- }
- count = (sizeKb * 1024) / (textureDimension * textureDimension * 4);
- if(count == 0)
- count = 1;
- return allocTextureMemory( count, textureDimension);
-}
-
-int SGBbCache::queryCacheSize(void) {
- return cacheSizeKb;
-}
-
-void SGBbCache::free(int bbId, int cldId) {
- if( bbId < 0 || bbId >= bbListCount )
- return;
- if( bbList[bbId].cldID != cldId )
- return;
- bbList[bbId].cldID = 0;
-}
-
-int SGBbCache::alloc(int cldId) {
- // pretend we have no more texture if render to texture is not available
- if( ! rtAvailable )
- return -1;
- for(int i = 0 ; i < bbListCount ; i++) {
- if( (bbList[i].cldID == 0) && (bbList[i].texID != 0) ) {
- bbList[i].cldID = cldId;
- bbList[i].angleX = -999;
- bbList[i].angleY = -999;
- bbList[i].frameUsed = 0;
- bbList[i].needRedraw = true;
- return i;
- }
- }
- return -1;
-}
-
-GLuint SGBbCache::QueryTexID(int cldId, int bbId) {
- if( bbId < 0 || bbId >= bbListCount )
- return 0;
- if( bbList[bbId].cldID != cldId )
- return 0;
- return bbList[bbId].texID;
-}
-
-int SGBbCache::queryImpostorAge(int bbId) {
- if( bbId < 0 || bbId >= bbListCount )
- return 0;
- return frameNumber - bbList[bbId].frame;
-}
-
-void SGBbCache::beginCapture(void) {
-
- rt->BeginCapture();
-
- glClear(GL_COLOR_BUFFER_BIT);
-
-}
-
-
-
-void SGBbCache::setRadius(float radius, float dist_center) {
- float border;
- //set viewport to texture resolution
- //glViewport(0, 0, 256, 256);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
-
- float near_ = dist_center - radius;
- float far_ = dist_center + radius;
- if( near_ <= 0 ) {
- // we are in trouble
- glFrustum(-1, 1, -1, 1, 1, 1 + radius * 2);
- } else {
- border = (near_ * radius) / sqrt(dist_center * dist_center - radius * radius);
- glFrustum(-border, border, -border, border, near_, far_);
- }
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-}
-void SGBbCache::setTextureData(int bbId) {
- if( bbId < 0 || bbId >= bbListCount )
- return;
-
- glBindTexture(GL_TEXTURE_2D, bbList[bbId].texID);
- glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, textureWH, textureWH);
-
-// bbList[bbId].angleX = angleX;
-// bbList[bbId].angleY = angleY;
- bbList[bbId].frame = frameNumber;
- bbList[bbId].frameUsed = frameNumber;
- bbList[bbId].needRedraw = false;
- builtBBCount ++;
- builtBBframe ++;
-}
-
-void SGBbCache::endCapture(void) {
-
- rt->EndCapture();
-// glBindTexture(GL_TEXTURE_2D, rt->GetTextureID() );
-
-}
-
-
-bool SGBbCache::isBbValid( int cldId, int bbId, float angleY, float angleX) {
- if( bbId < 0 || bbId >= bbListCount )
- return false;
- if( bbList[bbId].cldID != cldId )
- return false;
-
- // it was just allocated
- if( bbList[bbId].frameUsed == 0)
- return false;
-
- // we reuse old impostor to speed up things
- if( builtBBframe >= maxImpostorRegenFrame )
- return true;
-
- if( bbList[bbId].needRedraw )
- return false;
-
-// if( fabs(angleY - bbList[bbId].angleY) >= 4.0 )
-// return false;
-
-// if( fabs(angleX - bbList[bbId].angleX) >= 4.0 )
-// return false;
-
- bbList[bbId].frameUsed = frameNumber;
- return true;
-}
-
-// TODO:this is not the right way to handle that
-void SGBbCache::setReference( int cldId, int bbId, float angleY, float angleX) {
- if( bbId < 0 || bbId >= bbListCount )
- return;
- if( bbList[bbId].cldID != cldId )
- return;
- bbList[bbId].angleX = angleX;
- bbList[bbId].angleY = angleY;
-}
-
-void SGBbCache::startNewFrame(void) {
- builtBBframe = 0;
- // TOTO:find reasonable value
- int minFrameNumber = frameNumber - 100;
- frameNumber++;
- // cleanup of unused enties
- for( int bbId = 0 ; bbId < bbListCount ; bbId++)
- if( (bbList[bbId].cldID != 0) && (bbList[bbId].frameUsed < minFrameNumber) ) {
- // entry is now free
- bbList[bbId].cldID = 0;
- }
-}
-
-// force all impostors to be rebuilt, this will enventually be done over several frames
-void SGBbCache::invalidateCache(void) {
-
- for( int bbId = 0 ; bbId < bbListCount ; bbId++)
-// bbList[bbId].cldID = 0;
- bbList[bbId].needRedraw = true;
-}
-
-// flag the impostor for a lazy update
-void SGBbCache::invalidate(int cldId, int bbId) {
- if( bbId < 0 || bbId >= bbListCount )
- return;
- if( bbList[bbId].cldID != cldId )
- return;
- bbList[bbId].needRedraw = true;
-}
-
+++ /dev/null
-// Billboard helper class
-//
-// Written by Harald JOHNSEN, started April 2005.
-//
-// Copyright (C) 2005 Harald JOHNSEN - hjohnsen@evc.net
-//
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-//
-//
-
-#ifndef _BBCACHE_HXX
-#define _BBCACHE_HXX
-
-
-#include <plib/sg.h>
-#include <simgear/screen/extensions.hxx>
-#include <simgear/screen/RenderTexture.h>
-
-/**
- * Billboard helper class.
- */
-class SGBbCache {
-private:
-
- /**
- * storage class for impostors state.
- */
- class bbInfo {
- public:
- /// the texture used by this impostor
- GLuint texID;
- /// the cloud owning this impostor
- int cldID;
- float angleX, angleY;
- // creation frame number for debug only
- int frame;
- /// last time this entry was used
- int frameUsed;
- /// dirty flag for lazy rebuild of impostor
- bool needRedraw;
- };
-
- void freeTextureMemory(void);
- /**
- * Allocate and initialize the texture pool.
- * @param count the number of texture to build
- * @param textureDimension size in pixel of each texture
- */
- bool allocTextureMemory(int count, int textureDimension);
-
- // a list of impostors
- bbInfo *bbList;
- int bbListCount;
- int textureWH;
- int cacheSizeKb;
-
- // for debug only, stats
- int builtBBCount;
- // count of generated BB during the current frame
- int builtBBframe;
-
- long frameNumber;
- RenderTexture *rt;
- bool rtAvailable;
-
-public:
- SGBbCache(void);
- ~SGBbCache(void);
-
- /**
- * Call this first to initialize the cache.
- * @param cacheCount the number of texture to allocate
- */
- void init(int cacheCount);
-
- /**
- * Free one cache slot, usualy when the cached object is destroyed.
- * @param bbId the impostor slot
- * @param cldId the cloud identifier
- */
- void free(int bbId, int cldId);
-
- /**
- * Allocate a new impostor.
- * @param cldId the cloud identifier
- * @return an impostor slot
- */
- int alloc(int cldId);
-
- /**
- * Query the texture name associated with this cloud.
- * @param bbId the impostor slot
- * @param cldId the cloud identifier
- * @return a texture name
- */
- GLuint QueryTexID(int cldId, int bbId);
-
- /**
- * Save the rendered texture from the current context to a new texture.
- * @param bbId the impostor slot
- */
- void setTextureData(int bbId);
-
- /**
- * Start the rendering of a billboard in the RTT context.
- */
- void beginCapture(void);
-
- /**
- * Adjust the projection matrix of the RTT context to the size of the object.
- * @param radius radius in meters of the object to draw
- * @param dist_center distance between viewer and object
- */
- void setRadius(float radius, float dist_center);
-
- /**
- * Forget the RTT and go back to the previous rendering context.
- */
- void endCapture(void);
-
- /**
- * For debugging only, give the number of frames since the impostor was built.
- * @param bbId the impostor slot
- */
- int queryImpostorAge(int bbId);
-
- /**
- * Can we still use this impostor ? Check versus view angles and load.
- * @param bbId the impostor slot
- * @param cloudId the cloud identifier
- * @param angleY rotation needed to face the impostor
- * @param angleX rotation needed to face the impostor
- */
- bool isBbValid( int cloudId, int bbId, float angleY, float angleX);
-
- /**
- * Save view angles of this billboard.
- * @param bbId the impostor slot
- * @param cloudId the cloud identifier
- * @param angleY rotation needed to face the impostor
- * @param angleX rotation needed to face the impostor
- */
- void setReference( int cloudId, int bbId, float angleY, float angleX);
-
- /**
- * Prepare the cache for the rendering of a new frame.
- * Do some garbage collect of unused impostors
- */
- void startNewFrame(void);
-
- /**
- * Alloc the impostors texture memory given the size of the memory pool.
- * If sizeKb == 0 then the memory pool is freed and impostors are disabled
- * @param sizeKb size of the texture pool in K
- */
- bool setCacheSize(int sizeKb);
-
- /**
- * Alloc the impostors texture memory given the count and size of texture.
- * If count == 0 then the memory pool is freed and impostors are disabled
- * @param count number of texture to allocate
- * @param textureDimension size of each texture in pixels
- */
- bool setCacheSize(int count, int textureDimension);
-
- bool isRttAvailable(void) { return rtAvailable; }
-
- /**
- * Force all impostors to be rebuilt.
- */
- void invalidateCache(void);
-
- /**
- * Flag the impostor for a lazy update.
- * @param bbId the impostor slot
- * @param cldId the cloud identifier
- */
- void invalidate(int cldId, int bbId);
-
- /**
- * Return the size of the memory pool used by texture impostors.
- * @return size of the memory pool in Kb
- */
- int queryCacheSize(void);
-
- /**
- * Maximum number of impostor to regen each frame.
- * If we can't update all of them we will do that in the next frame
- */
- int maxImpostorRegenFrame;
-};
-
-#endif // _BBCACHE_HXX
#include <simgear/scene/model/model.hxx>
#include <simgear/scene/util/RenderConstants.hxx>
#include <simgear/scene/util/StateAttributeFactory.hxx>
+#include <simgear/screen/extensions.hxx>
#include "newcloud.hxx"
#include "cloudfield.hxx"
#include <vector>
#include <osg/Fog>
-#include "bbcache.hxx"
-
#include <simgear/scene/material/Effect.hxx>
#include <simgear/scene/material/EffectGeode.hxx>
+++ /dev/null
-#ifdef HAVE_CONFIG_H
-# include <simgear_config.h>
-#endif
-
-#ifdef WIN32
-# include <windows.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <limits.h>
-#include <string.h> // memcpy()
-
-#include "GLBitmaps.h"
-
-GlBitmap::GlBitmap( GLenum mode, GLint width, GLint height, GLubyte *bitmap )
-: m_bytesPerPixel(mode==GL_RGB?3:4), m_width(width), m_height(height), m_bitmap(NULL)
-{
- m_bitmapSize = m_bytesPerPixel*m_width*m_height;
- if ( !m_bitmapSize )
- {
- GLint vp[4];
- glGetIntegerv( GL_VIEWPORT, vp );
- m_width = vp[2];
- m_height = vp[3];
- m_bitmapSize = m_bytesPerPixel*m_width*m_height;
- }
- m_bitmap = (GLubyte *)malloc( m_bitmapSize );
- if ( bitmap ) memcpy( m_bitmap, bitmap, m_bitmapSize );
- else glReadPixels( 0,0, m_width,m_height, mode, GL_UNSIGNED_BYTE, m_bitmap );
-}
-
-GlBitmap::~GlBitmap( )
-{
- if ( m_bitmap ) free( m_bitmap );
-}
-
-GLubyte *GlBitmap::getBitmap()
-{
- return m_bitmap;
-}
-
-void GlBitmap::copyBitmap( GlBitmap *from, GLint at_x, GLint at_y )
-{
- GLint newWidth = at_x + from->m_width;
- GLint newHeight = at_y + from->m_height;
- if ( newWidth < m_width ) newWidth = m_width;
- if ( newHeight < m_height ) newHeight = m_height;
- m_bitmapSize = m_bytesPerPixel*newWidth*newHeight;
- GLubyte *newBitmap = (GLubyte *)malloc( m_bitmapSize );
- GLint x,y;
- for ( y=0; y<m_height; y++ )
- {
- GLubyte *s = m_bitmap + m_bytesPerPixel * (y * m_width);
- GLubyte *d = newBitmap + m_bytesPerPixel * (y * newWidth);
- memcpy( d, s, m_bytesPerPixel * m_width );
- }
- m_width = newWidth;
- m_height = newHeight;
- free( m_bitmap );
- m_bitmap = newBitmap;
- for ( y=0; y<from->m_height; y++ )
- {
- GLubyte *s = from->m_bitmap + from->m_bytesPerPixel * (y * from->m_width);
- GLubyte *d = m_bitmap + m_bytesPerPixel * ((at_y+y) * m_width + at_x);
- for ( x=0; x<from->m_width; x++ )
- {
- d[0] = s[0];
- d[1] = s[1];
- d[2] = s[2];
- if ( m_bytesPerPixel == 4 )
- {
- d[3] = (from->m_bytesPerPixel == 4) ? s[3] : 0;
- }
- s += from->m_bytesPerPixel;
- d += m_bytesPerPixel;
- }
- }
-}
-
+++ /dev/null
-#include <simgear/compiler.h>
-
-#include <osg/GL>
-
-class GlBitmap
-{
-public:
- GlBitmap( GLenum mode=GL_RGB, GLint width=0, GLint height=0, GLubyte *bitmap=0 );
- ~GlBitmap();
- GLubyte *getBitmap();
- void copyBitmap( GlBitmap *from, GLint at_x, GLint at_y );
-private:
- GLint m_bytesPerPixel;
- GLint m_width;
- GLint m_height;
- GLint m_bitmapSize;
- GLubyte *m_bitmap;
-};
noinst_HEADERS = GLBitmaps.h
include_HEADERS = \
- colors.hxx \
$(IMAGE_SERVER_INCL) \
screen-dump.hxx \
- extensions.hxx \
- RenderTexture.h \
- shader.h \
- tr.h
+ colors.hxx \
+ tr.h \
+ extensions.hxx
libsgscreen_a_SOURCES = \
- GLBitmaps.cxx \
$(IMAGE_SERVER_SRCS) \
screen-dump.cxx \
tr.cxx \
- extensions.cxx \
- RenderTexture.cpp \
- shader.cpp \
- win32-printer.h
-
-if HAVE_GLUT
-noinst_PROGRAMS = TestRenderTexture
+ extensions.cxx
+
-TestRenderTexture_SOURCES = TestRenderTexture.cpp
-
-TestRenderTexture_LDADD = \
- libsgscreen.a \
- $(top_builddir)/simgear/debug/libsgdebug.a \
- $(opengl_LIBS) \
- -ldl
-endif
+INCLUDES = -I$(top_srcdir) -I$(top_builddir)
-INCLUDES = -I$(top_srcdir) -I$(top_builddir) -DGLX_GLXEXT_PROTOTYPES
+++ /dev/null
-// File : RenderTexture.cpp
-//---------------------------------------------------------------------------
-// Copyright (c) 2002-2004 Mark J. Harris
-//---------------------------------------------------------------------------
-// This software is provided 'as-is', without any express or implied
-// warranty. In no event will the authors be held liable for any
-// damages arising from the use of this software.
-//
-// Permission is granted to anyone to use this software for any
-// purpose, including commercial applications, and to alter it and
-// redistribute it freely, subject to the following restrictions:
-//
-// 1. The origin of this software must not be misrepresented; you
-// must not claim that you wrote the original software. If you use
-// this software in a product, an acknowledgment in the product
-// documentation would be appreciated but is not required.
-//
-// 2. Altered source versions must be plainly marked as such, and
-// must not be misrepresented as being the original software.
-//
-// 3. This notice may not be removed or altered from any source
-// distribution.
-//
-// --------------------------------------------------------------------------
-// Credits:
-// Original RenderTexture class: Mark J. Harris
-// Original Render to Depth Texture support: Thorsten Scheuermann
-// Linux Copy-to-texture: Eric Werness
-// OS X: Alexander Powell (someone please help)
-// Various Bug Fixes: Daniel (Redge) Sperl
-// Bill Baxter
-// Ubuntu 8.04 64bit: Geoff McLane - 2009-07-01
-// to work even when version 1.2 is returned.
-//
-// --------------------------------------------------------------------------
-/**
-* @file RenderTexture.cpp
-*
-* Implementation of class RenderTexture. A multi-format render to
-* texture wrapper.
-*/
-
-/*
- * Changelog:
- *
- * Jan. 2005, Removed GLEW dependencies, Erik Hofman, Fred Bouvier
- * Nov. 2005, Use the simgear logging facility, Erik Hofman
- * Mar. 2006, Add MAC OS X support, Alexander Powell
- */
-
-#ifdef HAVE_CONFIG_H
-# include <simgear_config.h>
-#endif
-
-#include <simgear/compiler.h>
-#include <simgear/debug/logstream.hxx>
-#include <simgear/screen/extensions.hxx>
-#include <simgear/screen/RenderTexture.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
-#include <stdarg.h>
-
-#include <cstring>
-
-#ifdef _WIN32
-#pragma comment(lib, "gdi32.lib") // required for GetPixelFormat()
-#endif
-
-using namespace std;
-
-// DEBUG - add a lot of noise
-//#ifndef _DEBUG
-//#define _DEBUG
-//#endif
-
-#if defined (_DEBUG)
-const char * get_attr_name( int val, int * pdef );
-#define dbg_printf printf
-#else
-#if defined (__GNUC__)
-#define dbg_printf(format,args...) ((void)0)
-#else // defined (__GNUC__)
-#define dbg_printf
-#endif // defined (__GNUC__)
-#endif // defined (_DEBUG)
-
-// CHOP/NOT CHOP SOME CODE TO GET SOMETHING WORKING!
-#define ADD_QUERY_BUFFER
-#define ADD_GET_DRAWABLE
-// =======================================
-
-
-#ifdef _WIN32
-static bool fctPtrInited = false;
-/* WGL_ARB_pixel_format */
-static wglChoosePixelFormatARBProc wglChoosePixelFormatARBPtr = 0;
-static wglGetPixelFormatAttribivARBProc wglGetPixelFormatAttribivARBPtr = 0;
-/* WGL_ARB_pbuffer */
-static wglCreatePbufferARBProc wglCreatePbufferARBPtr = 0;
-static wglGetPbufferDCARBProc wglGetPbufferDCARBPtr = 0;
-static wglQueryPbufferARBProc wglQueryPbufferARBPtr = 0;
-static wglReleasePbufferDCARBProc wglReleasePbufferDCARBPtr = 0;
-static wglDestroyPbufferARBProc wglDestroyPbufferARBPtr = 0;
-/* WGL_ARB_render_texture */
-static wglBindTexImageARBProc wglBindTexImageARBPtr = 0;
-static wglReleaseTexImageARBProc wglReleaseTexImageARBPtr = 0;
-
-#elif defined( __MACH__ )
-#else /* !_WIN32 */
-static bool glXVersion1_3Present = false;
-static glXChooseFBConfigProc glXChooseFBConfigPtr = 0;
-static glXCreatePbufferProc glXCreatePbufferPtr = 0;
-static glXCreateGLXPbufferProc glXCreateGLXPbufferPtr = 0;
-static glXGetVisualFromFBConfigProc glXGetVisualFromFBConfigPtr = 0;
-static glXCreateContextProc glXCreateContextPtr = 0;
-static glXCreateContextWithConfigProc glXCreateContextWithConfigPtr = 0;
-static glXDestroyPbufferProc glXDestroyPbufferPtr = 0;
-static glXQueryDrawableProc glXQueryDrawablePtr = 0;
-static glXQueryGLXPbufferSGIXProc glXQueryGLXPbufferSGIXPtr = 0;
-#endif
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::RenderTexture
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::RenderTexture()
-* @brief Mode-string-based Constructor.
-*/
-RenderTexture::RenderTexture(const char *strMode)
-: _iWidth(0),
- _iHeight(0),
- _bIsTexture(false),
- _bIsDepthTexture(false),
- _bHasARBDepthTexture(true), // [Redge]
-#if defined(_WIN32) || defined(__MACH__)
- _eUpdateMode(RT_RENDER_TO_TEXTURE),
-#else
- _eUpdateMode(RT_COPY_TO_TEXTURE),
-#endif
- _bInitialized(false),
- _iNumAuxBuffers(0),
- _bIsBufferBound(false),
- _iCurrentBoundBuffer(0),
- _iNumDepthBits(0),
- _iNumStencilBits(0),
- _bFloat(false),
- _bDoubleBuffered(false),
- _bPowerOf2(true),
- _bRectangle(false),
- _bMipmap(false),
- _bShareObjects(false),
- _bCopyContext(false),
-#ifdef _WIN32
- _hDC(NULL),
- _hGLContext(NULL),
- _hPBuffer(NULL),
- _hPreviousDC(0),
- _hPreviousContext(0),
-#elif defined( __MACH__ )
- _hGLContext(NULL),
- _hPBuffer(0),
- _hPreviousContext(NULL),
-#else
- _pDisplay(NULL),
- _hGLContext(NULL),
- _hPBuffer(0),
- _hPreviousDrawable(0),
- _hPreviousContext(0),
-#endif
- _iTextureTarget(GL_NONE),
- _iTextureID(0),
- _iDepthTextureID(0),
- _pPoorDepthTexture(0) // [Redge]
-{
- dbg_printf("RenderTexture::RenderTexture(%s) BGN instantiation.\n", strMode );
- _iNumColorBits[0] = _iNumColorBits[1] =
- _iNumColorBits[2] = _iNumColorBits[3] = 0;
-
-#ifdef _WIN32
- dbg_printf("RenderTexture::RenderTexture in _WIN32.\n" );
- _pixelFormatAttribs.push_back(WGL_DRAW_TO_PBUFFER_ARB);
- _pixelFormatAttribs.push_back(true);
- _pixelFormatAttribs.push_back(WGL_SUPPORT_OPENGL_ARB);
- _pixelFormatAttribs.push_back(true);
-
- _pbufferAttribs.push_back(WGL_PBUFFER_LARGEST_ARB);
- _pbufferAttribs.push_back(true);
-#elif defined( __MACH__ )
- dbg_printf("RenderTexture::RenderTexture in __MACH__.\n" );
- //_pixelFormatAttribs.push_back(kCGLPFANoRecovery);
- _pixelFormatAttribs.push_back(kCGLPFAAccelerated);
- _pixelFormatAttribs.push_back(kCGLPFAWindow);
- _pixelFormatAttribs.push_back(kCGLPFAPBuffer);
-#else
- dbg_printf("RenderTexture::RenderTexture !_WIN32 and !__MACH__.\n" );
- _pbufferAttribs.push_back(GLX_RENDER_TYPE_SGIX);
- _pbufferAttribs.push_back(GLX_RGBA_BIT_SGIX);
- _pbufferAttribs.push_back(GLX_DRAWABLE_TYPE_SGIX);
- _pbufferAttribs.push_back(GLX_PBUFFER_BIT_SGIX);
-#endif
-
- _ParseModeString(strMode, _pixelFormatAttribs, _pbufferAttribs);
-
-#ifdef _WIN32
- _pixelFormatAttribs.push_back(0);
- _pbufferAttribs.push_back(0);
-#elif defined(__MACH__)
- _pixelFormatAttribs.push_back((CGLPixelFormatAttribute)0);
- _pbufferAttribs.push_back((CGLPixelFormatAttribute)0);
-#else
- _pixelFormatAttribs.push_back(None);
-#endif
-
- dbg_printf("RenderTexture::RenderTexture(%s) END instantiation. pf=%d pb=%d\n",
- strMode, (int)_pixelFormatAttribs.size(), (int)_pbufferAttribs.size() );
-
-}
-
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::~RenderTexture
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::~RenderTexture()
-* @brief Destructor.
-*/
-RenderTexture::~RenderTexture()
-{
- dbg_printf("RenderTexture::~RenderTexture: destructor.\n" );
- _Invalidate();
-}
-
- //---------------------------------------------------------------------------
-// Function : _cglcheckError
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn _cglCheckError()
-* @brief Prints to stderr a description when an OS X error is found.
-*/
-#ifdef __MACH__
-static void _cglCheckErrorHelper(CGLError err, char *sourceFile, int sourceLine)
-{
-# ifdef _DEBUG
- if (err)
- {
- fprintf(stderr, "RenderTexture CGL Error: %s at (%s,%d)",
- CGLErrorString(err), sourceFile, sourceLine);
- }
-# endif
-}
-
-# define _cglCheckError(err) _cglCheckErrorHelper(err,__FILE__,__LINE__)
-
-#endif
-
-
-//---------------------------------------------------------------------------
-// Function : _wglGetLastError
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn wglGetLastError()
-* @brief Returns the last windows error generated.
-*/
-#ifdef _WIN32
-void _wglGetLastError()
-{
-#ifdef _DEBUG
-
- DWORD err = GetLastError();
- switch(err)
- {
- case ERROR_INVALID_PIXEL_FORMAT:
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Win32 Error: ERROR_INVALID_PIXEL_FORMAT");
- break;
- case ERROR_NO_SYSTEM_RESOURCES:
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Win32 Error: ERROR_NO_SYSTEM_RESOURCES");
- break;
- case ERROR_INVALID_DATA:
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Win32 Error: ERROR_INVALID_DATA");
- break;
- case ERROR_INVALID_WINDOW_HANDLE:
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Win32 Error: ERROR_INVALID_WINDOW_HANDLE");
- break;
- case ERROR_RESOURCE_TYPE_NOT_FOUND:
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Win32 Error: ERROR_RESOURCE_TYPE_NOT_FOUND");
- break;
- case ERROR_SUCCESS:
- // no error
- break;
- default:
- LPVOID lpMsgBuf;
- FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
- FORMAT_MESSAGE_FROM_SYSTEM |
- FORMAT_MESSAGE_IGNORE_INSERTS,
- NULL,
- err,
- MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
- (LPTSTR) &lpMsgBuf,
- 0,
- NULL);
-
- SG_LOG(SG_GL, SG_ALERT, "RenderTexture Win32 Error " << err << ":" << lpMsgBuf);
- LocalFree( lpMsgBuf );
- break;
- }
- SetLastError(0);
-
-#endif // _DEBUG
-}
-#endif
-
-//---------------------------------------------------------------------------
-// Function : PrintExtensionError
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn PrintExtensionError( char* strMsg, ... )
-* @brief Prints an error about missing OpenGL extensions.
-*/
-void PrintExtensionError( const char* strMsg, ... )
-{
- SG_LOG(SG_GL, SG_ALERT,
- "Error: RenderTexture requires the following unsupported "
- "OpenGL extensions: ");
- char strBuffer[512];
- va_list args;
- va_start(args, strMsg);
- vsnprintf( strBuffer, 512, strMsg, args );
- va_end(args);
-
- SG_LOG(SG_GL, SG_ALERT, strMsg);
- dbg_printf("Error: RenderTexture requires the following unsupported OpenGL extensions: \n[%s]\n", strMsg);
-}
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::Initialize
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::Initialize(int width, int height, bool shareObjects, bool copyContext);
-* @brief Initializes the RenderTexture, sharing display lists and textures if specified.
-*
-* This function creates of the p-buffer. It can only be called once a GL
-* context has already been created.
-*/
-bool RenderTexture::Initialize(int width, int height,
- bool shareObjects /* = true */,
- bool copyContext /* = false */)
-{
- assert(width > 0 && height > 0);
-
- dbg_printf("RenderTexture::Initialize w=%d h=%d\n", width, height );
-
- _iWidth = width; _iHeight = height;
- _bPowerOf2 = IsPowerOfTwo(width) && IsPowerOfTwo(height);
-
- _bShareObjects = shareObjects;
- _bCopyContext = copyContext;
-
- // Check if this is an NVXX GPU and verify necessary extensions.
- if (!_VerifyExtensions()) {
- dbg_printf("RenderTexture::Initialize: _VerifyExtensions() FAILED - returning false.\n" );
- return false;
- }
-
- if (_bInitialized)
- _Invalidate();
-
-#ifdef _WIN32
- // Get the current context.
- HDC hdc = wglGetCurrentDC();
- if (NULL == hdc)
- _wglGetLastError();
- HGLRC hglrc = wglGetCurrentContext();
- if (NULL == hglrc)
- _wglGetLastError();
-
- int iFormat = 0;
- unsigned int iNumFormats;
-
- if (_bCopyContext)
- {
- // Get the pixel format for the on-screen window.
- iFormat = GetPixelFormat(hdc);
- if (iFormat == 0)
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: GetPixelFormat() failed.");
- return false;
- }
- }
- else
- {
- if (!wglChoosePixelFormatARBPtr(hdc, &_pixelFormatAttribs[0], NULL,
- 1, &iFormat, &iNumFormats))
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: wglChoosePixelFormatARB() failed.");
- _wglGetLastError();
- return false;
- }
- if ( iNumFormats <= 0 )
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: Couldn't find a suitable "
- "pixel format.");
- _wglGetLastError();
- return false;
- }
- }
-
- // Create the p-buffer.
- _hPBuffer = wglCreatePbufferARBPtr(hdc, iFormat, _iWidth, _iHeight,
- &_pbufferAttribs[0]);
- if (!_hPBuffer)
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: wglCreatePbufferARB() failed.");
- _wglGetLastError();
- return false;
- }
-
- // Get the device context.
- _hDC = wglGetPbufferDCARBPtr( _hPBuffer);
- if ( !_hDC )
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: wglGetGetPbufferDCARB() failed.");
- _wglGetLastError();
- return false;
- }
-
- // Create a gl context for the p-buffer.
- if (_bCopyContext)
- {
- // Let's use the same gl context..
- // Since the device contexts are compatible (i.e. same pixelformat),
- // we should be able to use the same gl rendering context.
- _hGLContext = hglrc;
- }
- else
- {
- _hGLContext = wglCreateContext( _hDC );
- if ( !_hGLContext )
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: wglCreateContext() failed.");
- _wglGetLastError();
- return false;
- }
- }
-
- // Share lists, texture objects, and program objects.
- if( _bShareObjects )
- {
- if( !wglShareLists(hglrc, _hGLContext) )
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: wglShareLists() failed.");
- _wglGetLastError();
- return false;
- }
- }
-
- // Determine the actual width and height we were able to create.
- wglQueryPbufferARBPtr( _hPBuffer, WGL_PBUFFER_WIDTH_ARB, &_iWidth );
- wglQueryPbufferARBPtr( _hPBuffer, WGL_PBUFFER_HEIGHT_ARB, &_iHeight );
-
- _bInitialized = true;
-
- // get the actual number of bits allocated:
- int attrib = WGL_RED_BITS_ARB;
- //int bits[6];
- int value;
- _iNumColorBits[0] =
- (wglGetPixelFormatAttribivARBPtr(_hDC, iFormat, 0, 1, &attrib, &value))
- ? value : 0;
- attrib = WGL_GREEN_BITS_ARB;
- _iNumColorBits[1] =
- (wglGetPixelFormatAttribivARBPtr(_hDC, iFormat, 0, 1, &attrib, &value))
- ? value : 0;
- attrib = WGL_BLUE_BITS_ARB;
- _iNumColorBits[2] =
- (wglGetPixelFormatAttribivARBPtr(_hDC, iFormat, 0, 1, &attrib, &value))
- ? value : 0;
- attrib = WGL_ALPHA_BITS_ARB;
- _iNumColorBits[3] =
- (wglGetPixelFormatAttribivARBPtr(_hDC, iFormat, 0, 1, &attrib, &value))
- ? value : 0;
- attrib = WGL_DEPTH_BITS_ARB;
- _iNumDepthBits =
- (wglGetPixelFormatAttribivARBPtr(_hDC, iFormat, 0, 1, &attrib, &value))
- ? value : 0;
- attrib = WGL_STENCIL_BITS_ARB;
- _iNumStencilBits =
- (wglGetPixelFormatAttribivARBPtr(_hDC, iFormat, 0, 1, &attrib, &value))
- ? value : 0;
- attrib = WGL_DOUBLE_BUFFER_ARB;
- _bDoubleBuffered =
- (wglGetPixelFormatAttribivARBPtr(_hDC, iFormat, 0, 1, &attrib, &value))
- ? (value?true:false) : false;
-
-#if defined(_DEBUG) | defined(DEBUG)
- SG_LOG(SG_GL, SG_ALERT, "Created a " << _iWidth << "x" << _iHeight <<
- " RenderTexture with BPP(" <<
- _iNumColorBits[0] << "," << _iNumColorBits[1] << "," <<
- _iNumColorBits[2] << "," << _iNumColorBits[3] << ")");
- if (_iNumDepthBits) SG_LOG(SG_GL, SG_ALERT, " depth=" << _iNumDepthBits);
- if (_iNumStencilBits) SG_LOG(SG_GL, SG_ALERT, " stencil=" << _iNumStencilBits);
- if (_bDoubleBuffered) SG_LOG(SG_GL, SG_ALERT, " double buffered");
-#endif
-
-#elif defined( __MACH__ )
- // Get the current context.
- CGLContextObj hglrc = CGLGetCurrentContext();
- if (NULL == hglrc)
- fprintf(stderr, "Couldn't get current context!");
-
- CGLPixelFormatObj pixFormat = NULL;
- GLint iNumFormats;
- CGLError error;
-
- // Copy the _pixelFormatAttribs into another array to fix
- // typecast issues
- CGLPixelFormatAttribute *pixFormatAttribs =
- (CGLPixelFormatAttribute *)malloc(sizeof(CGLPixelFormatAttribute)
- * _pixelFormatAttribs.size());
-
- for (unsigned int ii = 0; ii < _pixelFormatAttribs.size(); ii++)
- {
- pixFormatAttribs[ii] =
- (CGLPixelFormatAttribute)_pixelFormatAttribs[ii];
- }
-
- if (error =
- CGLChoosePixelFormat(&pixFormatAttribs[0], &pixFormat, &iNumFormats))
- {
- fprintf(stderr,
- "RenderTexture Error: CGLChoosePixelFormat() failed.\n");
- _cglCheckError(error);
- return false;
- }
- if ( iNumFormats <= 0 )
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: Couldn't find a suitable "
- "pixel format.");
- return false;
- }
-
- // Free the copy of the _pixelFormatAttribs array
- free(pixFormatAttribs);
-
- // Create the context.
- error = CGLCreateContext(pixFormat, (_bShareObjects)
- ? CGLGetCurrentContext() : NULL, &_hGLContext);
- if (error)
- {
- fprintf(stderr,
- "RenderTexture Error: CGLCreateContext() failed.\n");
- _cglCheckError(error);
- return false;
- }
- CGLDestroyPixelFormat(pixFormat);
-
- // Create the p-buffer.
- error = CGLCreatePBuffer(_iWidth, _iHeight, (_bRectangle)
- ? GL_TEXTURE_RECTANGLE_EXT : GL_TEXTURE_2D, GL_RGBA, 0, &_hPBuffer);
- if (error)
- {
- fprintf(stderr,
- "RenderTexture Error: CGLCreatePBuffer() failed.\n");
- _cglCheckError(error);
- return false;
- }
-
- GLint screen;
- if (error = CGLGetVirtualScreen(CGLGetCurrentContext(), &screen))
- {
- _cglCheckError(error);
- return false;
- }
- if (error = CGLSetPBuffer(_hGLContext, _hPBuffer, 0, 0, screen))
- {
- _cglCheckError(error);
- return false;
- }
-
- // Determine the actual width and height we were able to create.
- //wglQueryPbufferARB( _hPBuffer, WGL_PBUFFER_WIDTH_ARB, &_iWidth );
- //wglQueryPbufferARB( _hPBuffer, WGL_PBUFFER_HEIGHT_ARB, &_iHeight );
-
- _bInitialized = true;
-
- /*
- // get the actual number of bits allocated:
- int attrib = WGL_RED_BITS_ARB;
- //int bits[6];
- int value;
- _iNumColorBits[0] =
- (wglGetPixelFormatAttribivARB(_hDC, iFormat, 0, 1, &attrib, &value))
- ? value : 0;
- attrib = WGL_GREEN_BITS_ARB;
- _iNumColorBits[1] =
- (wglGetPixelFormatAttribivARB(_hDC, iFormat, 0, 1, &attrib, &value))
- ? value : 0;
- attrib = WGL_BLUE_BITS_ARB;
- _iNumColorBits[2] =
- (wglGetPixelFormatAttribivARB(_hDC, iFormat, 0, 1, &attrib, &value))
- ? value : 0;
- attrib = WGL_ALPHA_BITS_ARB;
- _iNumColorBits[3] =
- (wglGetPixelFormatAttribivARB(_hDC, iFormat, 0, 1, &attrib, &value))
- ? value : 0;
- attrib = WGL_DEPTH_BITS_ARB;
- _iNumDepthBits =
- (wglGetPixelFormatAttribivARB(_hDC, iFormat, 0, 1, &attrib, &value))
- ? value : 0;
- attrib = WGL_STENCIL_BITS_ARB;
- _iNumStencilBits =
- (wglGetPixelFormatAttribivARB(_hDC, iFormat, 0, 1, &attrib, &value))
- ? value : 0;
- attrib = WGL_DOUBLE_BUFFER_ARB;
- _bDoubleBuffered =
- (wglGetPixelFormatAttribivARB(_hDC, iFormat, 0, 1, &attrib, &value))
- ? (value?true:false) : false;
- */
-
-#if defined(_DEBUG) | defined(DEBUG)
- fprintf(stderr, "Created a %dx%d RenderTexture with BPP(%d, %d, %d, %d)",
- _iWidth, _iHeight,
- _iNumColorBits[0], _iNumColorBits[1],
- _iNumColorBits[2], _iNumColorBits[3]);
- if (_iNumDepthBits) fprintf(stderr, " depth=%d", _iNumDepthBits);
- if (_iNumStencilBits) fprintf(stderr, " stencil=%d", _iNumStencilBits);
- if (_bDoubleBuffered) fprintf(stderr, " double buffered");
- fprintf(stderr, "\n");
-#endif
-
-#else // !_WIN32, !__MACH_
-
- _pDisplay = glXGetCurrentDisplay();
- if ( !_pDisplay ) {
- dbg_printf("RenderTexture::Initialize: ERROR: glXGetCurrentDisplay() returned NULL! return false\n");
- return false;
- }
- dbg_printf("RenderTexture::Initialize: got glXGetCurrentDisplay() _pDisplay=[%p]\n", _pDisplay);
- // glXGetCurrentContext returns the current context, as specified by glXMakeCurrent.
- // If there is no current context, NULL is returned.
- GLXContext context = glXGetCurrentContext();
- if ( !context ) {
- dbg_printf("RenderTexture::Initialize: ERROR: glXGetCurrentContext() returned NULL! return false\n");
- return false;
- }
- dbg_printf("RenderTexture::Initialize: got glXGetCurrentContext() context=[%p]\n", context);
- int screen = DefaultScreen(_pDisplay);
- dbg_printf("RenderTexture::Initialize: DefaultScreen(_pDisplay) screen=%d\n", screen);
-
- XVisualInfo *visInfo = NULL;
-
- GLXFBConfig *fbConfigs;
- int nConfigs;
-#ifdef _DEBUG
- dbg_printf("Using %d pixelFormatAttribs array\n", (int)_pixelFormatAttribs.size());
- size_t max = _pixelFormatAttribs.size() / 2;
- int dat = 0;
- size_t n;
- for (n = 0; n < max; n++) {
- const char * cp = get_attr_name(_pixelFormatAttribs[n*2], &dat);
- printf( "%s(%d) = %d (def=%d)\n",
- cp, _pixelFormatAttribs[n*2], _pixelFormatAttribs[(n*2)+1], dat );
- }
- n *= 2;
- if ( n < _pixelFormatAttribs.size() )
- printf( "Array ends with %d\n", _pixelFormatAttribs[n] );
- else
- printf( "WARNING: Array does not appear ODD! which is ODD\n" );
-
-#endif
- fbConfigs = glXChooseFBConfigPtr(_pDisplay, screen,
- &_pixelFormatAttribs[0], &nConfigs);
- // NOTE: ref: http://www.opengl.org/sdk/docs/man/xhtml/glXChooseFBConfig.xml says
- // Next, call glXGetFBConfigAttrib to retrieve additional attributes for the frame buffer configurations and then select between them.
-
- if (nConfigs <= 0 || !fbConfigs)
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: Couldn't find a suitable pixel format.");
- dbg_printf("RenderTexture Error: Couldn't find a suitable pixel format. return false\n");
- return false;
- }
-
- dbg_printf("RenderTexture::Initialize: glXChooseFBConfigPtr() nConfigs = %d, fbConfigs=[%p]\n", nConfigs, fbConfigs);
-
- int pbufAttrib[] = {
- GLX_PBUFFER_WIDTH, _iWidth,
- GLX_PBUFFER_HEIGHT, _iHeight,
- GLX_LARGEST_PBUFFER, False,
- None
- };
- // Pick the first returned format that will return a pbuffer
- // if (glXVersion1_3Present)
- if (glXCreatePbufferPtr && glXGetVisualFromFBConfigPtr && glXCreateContextPtr)
- {
- dbg_printf("RenderTexture::Initialize: glXVersion1_3Present = TRUE\n");
- for (int i=0;i<nConfigs;i++)
- {
- _hPBuffer = glXCreatePbufferPtr(_pDisplay, fbConfigs[i], pbufAttrib);
- if (_hPBuffer)
- {
- XVisualInfo *visInfo = glXGetVisualFromFBConfigPtr(_pDisplay, fbConfigs[i]);
-
- _hGLContext = glXCreateContextPtr(_pDisplay, visInfo,
- _bShareObjects ? context : NULL,
- True);
- if (!_hGLContext)
- {
- dbg_printf("RenderTexture Error: glXCreateContextPtr(_pDisplay, visInfo,..) FAILED! return false\n");
- return false;
- }
- XFree( visInfo );
- break;
- }
- }
- }
- else
- {
-#ifdef WIN32
- int iFormat = 0;
- int iNumFormats;
- int attrib = 0;
-#endif
- dbg_printf("RenderTexture::Initialize: glXVersion1_3Present = FALSE w=%d h=%d\n", _iWidth, _iHeight);
- for (int i=0; i < nConfigs; i++)
- {
- dbg_printf("RenderTexture::Initialize: %d: glXCreateGLXPbufferPtr() get buffer ptr\n", (i + 1));
- _hPBuffer = glXCreateGLXPbufferPtr(_pDisplay, fbConfigs[i],
- _iWidth, _iHeight,
- &pbufAttrib[0] ); //NULL);
- if (_hPBuffer)
- {
- dbg_printf("RenderTexture::Initialize: %d: glXCreateGLXPbufferPtr() got buffer [%p]\n", (i + 1), (void*)_hPBuffer);
- _hGLContext = glXCreateContextWithConfigPtr(_pDisplay,
- fbConfigs[i],
- GLX_RGBA_TYPE,
- _bShareObjects ? context : NULL,
- True);
- dbg_printf("RenderTexture::Initialize: %d: glXCreateContextWithConfigPtr() _hGLContext=[%p]\n", (i + 1), _hGLContext);
- break;
- } else {
- dbg_printf("RenderTexture::Initialize: %d: glXCreateGLXPbufferPtr() NO buffer\n", (i + 1));
- }
- }
- }
-
- dbg_printf("RenderTexture::Initialize: doing XFree( fbConfigs=[%p].\n", fbConfigs);
- XFree( fbConfigs );
-
- if (!_hPBuffer)
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: glXCreateGLXPbufferPtr() failed.");
- dbg_printf("RenderTexture Error: glXCreateGLXPbufferPtr() failed.\n");
- return false;
- }
-
- if(!_hGLContext)
- {
- // Try indirect
- _hGLContext = glXCreateContext(_pDisplay, visInfo,
- _bShareObjects ? context : NULL, False);
- if ( !_hGLContext )
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: glXCreateContext() failed.");
- dbg_printf("RenderTexture Error: glXCreateContext() failed. return false\n");
- return false;
- }
- }
-
- // if (!glXVersion1_3Present)
- if ((!glXCreatePbufferPtr || !glXGetVisualFromFBConfigPtr || !glXCreateContextPtr) &&
- (!glXVersion1_3Present))
- {
-#ifdef ADD_QUERY_BUFFER
- dbg_printf("RenderTexture::Initialize: Doing glXQueryGLXPbufferSGIXPtr with GLX_WIDTH_SGIX\n");
- glXQueryGLXPbufferSGIXPtr(_pDisplay, _hPBuffer, GLX_WIDTH_SGIX,
- (GLuint*)&_iWidth);
- dbg_printf("RenderTexture::Initialize: Doing glXQueryGLXPbufferSGIXPtr with GLX_HEIGHT_SGIX\n");
- glXQueryGLXPbufferSGIXPtr(_pDisplay, _hPBuffer, GLX_HEIGHT_SGIX,
- (GLuint*)&_iHeight);
-#else
- dbg_printf("RenderTexture::Initialize: SKIPPED doing glXQueryGLXPbufferSGIXPtr with GLX_WIDTH_SGIX and GLX_HEIGHT_SGIX\n");
-#endif // #ifdef ADD_QUERY_BUFFER
- }
-
- _bInitialized = true;
- dbg_printf( "RenderTexture::Initialize: _bIniialized set TRUE\n" );
- // XXX Query the color format
-
-#endif
-
-
- // Now that the pbuffer is created, allocate any texture objects needed,
- // and initialize them (for CTT updates only). These must be allocated
- // in the context of the pbuffer, though, or the RT won't work without
- // wglShareLists.
-#ifdef _WIN32
- if (false == wglMakeCurrent( _hDC, _hGLContext))
- {
- _wglGetLastError();
- return false;
- }
-#elif defined( __MACH__ )
- CGLError err;
- if (err = CGLSetCurrentContext(_hGLContext))
- {
- _cglCheckError(err);
- return false;
- }
-#else
-
-#ifdef ADD_GET_DRAWABLE
- dbg_printf( "RenderTexture::Initialize: doing glXGetCurrentContext()\n" );
- _hPreviousContext = glXGetCurrentContext();
- dbg_printf( "RenderTexture::Initialize: doing glXGetCurrentDrawable()\n" );
- _hPreviousDrawable = glXGetCurrentDrawable();
-#else
- _hPreviousContext = context;
- _hPreviousDrawable = 0;
- dbg_printf( "RenderTexture::Initialize: SKIPPED doing glXGetCurrentContext(2nd) AND glXGetCurrentDrawable()\n" );
-#endif // #ifdef ADD_GET_DRAWABLE
-
- dbg_printf( "RenderTexture::Initialize: doing glXMakeCurrent(_pDisplay(%p), _hPBuffer(%p), _hGLContext(%p))\n",
- _pDisplay, (void*)_hPBuffer, _hGLContext );
- if (False == glXMakeCurrent(_pDisplay, _hPBuffer, _hGLContext))
- {
- dbg_printf( "glXMakeCurrent(_pDisplay, _hPBuffer, _hGLContext) FAILED. return false\n" );
- return false;
- }
-
-#endif
-
- bool result = _InitializeTextures();
-#ifdef _WIN32
- BindBuffer(WGL_FRONT_LEFT_ARB);
- _BindDepthBuffer();
-#endif
-
-
-#ifdef _WIN32
- // make the previous rendering context current
- if (false == wglMakeCurrent( hdc, hglrc))
- {
- _wglGetLastError();
- return false;
- }
-#elif defined( __MACH__ )
- if (err = CGLSetCurrentContext(_hPreviousContext))
- {
- _cglCheckError(err);
- return false;
- }
-#else
- if (False == glXMakeCurrent(_pDisplay,
- _hPreviousDrawable, _hPreviousContext))
- {
- dbg_printf("glXMakeCurrent(_pDisplay, _hPreviousDrawable, _hPreviousContext)) FAILED! return false\n" );
- return false;
- }
-
- if (glXVersion1_3Present)
- //if ((glXVersion1_3Present) ||
- // (glXCreatePbufferPtr && glXGetVisualFromFBConfigPtr && glXCreateContextPtr && glXQueryDrawablePtr))
- {
- dbg_printf( "RenderTexture::Initialize: doing glXGetCurrentDrawable()\n" );
- GLXDrawable draw = glXGetCurrentDrawable();
- dbg_printf( "RenderTexture::Initialize: doing glXQueryDrawablePtr for GLX_WIDTH and GLX_HEIGHT\n" );
- glXQueryDrawablePtr(_pDisplay, draw, GLX_WIDTH, (unsigned int*)&_iWidth);
- glXQueryDrawablePtr(_pDisplay, draw, GLX_HEIGHT, (unsigned int*)&_iHeight);
- }
-#endif
-
- dbg_printf( "RenderTexture::Initialize(w=%d,h=%d): returning %s\n", _iWidth, _iHeight, (result ? "TRUE" : "FALSE") );
- return result;
-}
-
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::_Invalidate
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::_Invalidate()
-* @brief Returns the pbuffer memory to the graphics device.
-*
-*/
-bool RenderTexture::_Invalidate()
-{
- dbg_printf( "RenderTexture::_Invalidate() called...\n" );
-
- _iNumColorBits[0] = _iNumColorBits[1] =
- _iNumColorBits[2] = _iNumColorBits[3] = 0;
- _iNumDepthBits = 0;
- _iNumStencilBits = 0;
-
- if (_bIsTexture)
- glDeleteTextures(1, &_iTextureID);
- if (_bIsDepthTexture)
- {
- // [Redge]
- if (!_bHasARBDepthTexture) delete[] _pPoorDepthTexture;
- // [/Redge]
- glDeleteTextures(1, &_iDepthTextureID);
- }
-
-#ifdef _WIN32
- if ( _hPBuffer )
- {
- // Check if we are currently rendering in the pbuffer
- if (wglGetCurrentContext() == _hGLContext)
- wglMakeCurrent(0,0);
- if (!_bCopyContext)
- wglDeleteContext( _hGLContext);
- wglReleasePbufferDCARBPtr( _hPBuffer, _hDC);
- wglDestroyPbufferARBPtr( _hPBuffer );
- _hPBuffer = 0;
- return true;
- }
-#elif defined( __MACH__ )
- if ( _hPBuffer )
- {
- if (CGLGetCurrentContext() == _hGLContext)
- CGLSetCurrentContext(NULL);
- if (!_bCopyContext)
- CGLDestroyContext(_hGLContext);
- CGLDestroyPBuffer(_hPBuffer);
- _hPBuffer = NULL;
- return true;
- }
-#else
- if ( _hPBuffer )
- {
- if(glXGetCurrentContext() == _hGLContext)
- // XXX I don't know if this is right at all
- glXMakeCurrent(_pDisplay, _hPBuffer, 0);
- glXDestroyPbufferPtr(_pDisplay, _hPBuffer);
- _hPBuffer = 0;
- dbg_printf( "RenderTexture::_Invalidate: glXDestroyPbufferPtr(_pDisplay, _hPBuffer); return true\n" );
- return true;
- }
-#endif
-
- dbg_printf( "RenderTexture::_Invalidate: return false\n" );
- // [WVB] do we need to call _ReleaseBoundBuffers() too?
- return false;
-}
-
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::Reset
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::Reset()
-* @brief Resets the resolution of the offscreen buffer.
-*
-* Causes the buffer to delete itself. User must call Initialize() again
-* before use.
-*/
-bool RenderTexture::Reset(const char *strMode, ...)
-{
- dbg_printf("RenderTexure:Reset(): with %s\n", strMode);
-
- _iWidth = 0; _iHeight = 0;
- _bIsTexture = false; _bIsDepthTexture = false,
- _bHasARBDepthTexture = true;
-#if defined(_WIN32) || defined(__MACH__)
- _eUpdateMode = RT_RENDER_TO_TEXTURE;
-#else
- _eUpdateMode = RT_COPY_TO_TEXTURE;
-#endif
- _bInitialized = false;
- _iNumAuxBuffers = 0;
- _bIsBufferBound = false;
- _iCurrentBoundBuffer = 0;
- _iNumDepthBits = 0; _iNumStencilBits = 0;
- _bDoubleBuffered = false;
- _bFloat = false; _bPowerOf2 = true;
- _bRectangle = false; _bMipmap = false;
- _bShareObjects = false; _bCopyContext = false;
- _iTextureTarget = GL_NONE; _iTextureID = 0;
- _iDepthTextureID = 0;
- _pPoorDepthTexture = 0;
- _pixelFormatAttribs.clear();
- _pbufferAttribs.clear();
- if (IsInitialized())
- {
- if (!_Invalidate())
- {
- dbg_printf( "RenderTexture::Reset(): failed to invalidate. return false\n");
- return false;
- }
- else
- {
- dbg_printf( "RenderTexture::Reset(): was Initialized, and now _Invalidate() ok.");
- }
- }
- else
- {
- dbg_printf("RenderTexure:Reset(): previous NOT initialised!\n");
- }
-
- _iNumColorBits[0] = _iNumColorBits[1] =
- _iNumColorBits[2] = _iNumColorBits[3] = 0;
-
-#ifdef _WIN32
- _pixelFormatAttribs.push_back(WGL_DRAW_TO_PBUFFER_ARB);
- _pixelFormatAttribs.push_back(true);
- _pixelFormatAttribs.push_back(WGL_SUPPORT_OPENGL_ARB);
- _pixelFormatAttribs.push_back(true);
-
- _pbufferAttribs.push_back(WGL_PBUFFER_LARGEST_ARB);
- _pbufferAttribs.push_back(true);
-#elif defined( __MACH__ )
- //_pixelFormatAttribs.push_back(kCGLPFANoRecovery);
- _pixelFormatAttribs.push_back(kCGLPFAAccelerated);
- _pixelFormatAttribs.push_back(kCGLPFAWindow);
- _pixelFormatAttribs.push_back(kCGLPFAPBuffer);
-#else
- _pbufferAttribs.push_back(GLX_RENDER_TYPE_SGIX);
- _pbufferAttribs.push_back(GLX_RGBA_BIT_SGIX);
- _pbufferAttribs.push_back(GLX_DRAWABLE_TYPE_SGIX);
- _pbufferAttribs.push_back(GLX_PBUFFER_BIT_SGIX);
-#endif
-
- va_list args;
- char strBuffer[256];
- va_start(args,strMode);
- vsnprintf( strBuffer, 256, strMode, args );
- va_end(args);
-
- _ParseModeString(strBuffer, _pixelFormatAttribs, _pbufferAttribs);
-
-#ifdef _WIN32
- _pixelFormatAttribs.push_back(0);
- _pbufferAttribs.push_back(0);
-#elif defined(__MACH__)
- _pixelFormatAttribs.push_back((CGLPixelFormatAttribute)0);
-#else
- _pixelFormatAttribs.push_back(None);
-#endif
- dbg_printf("RenderTexure:Reset(): returning true.\n");
- return true;
-}
-
-//------------------------------------------------------------------------------
-// Function : RenderTexture::Resize
-// Description :
-//------------------------------------------------------------------------------
-/**
- * @fn RenderTexture::Resize(int iWidth, int iHeight)
- * @brief Changes the size of the offscreen buffer.
- *
- * Like Reset() this causes the buffer to delete itself.
- * But unlike Reset(), this call re-initializes the RenderTexture.
- * Note that Resize() will not work after calling Reset(), or before
- * calling Initialize() the first time.
- */
-bool RenderTexture::Resize(int iWidth, int iHeight)
-{
- if (!_bInitialized) {
- SG_LOG(SG_GL, SG_ALERT, "RenderTexture::Resize(): must Initialize() first.");
- return false;
- }
- if (iWidth == _iWidth && iHeight == _iHeight) {
- return true;
- }
-
- // Do same basic work as _Invalidate, but don't reset all our flags
- if (_bIsTexture)
- glDeleteTextures(1, &_iTextureID);
- if (_bIsDepthTexture)
- glDeleteTextures(1, &_iDepthTextureID);
-#ifdef _WIN32
- if ( _hPBuffer )
- {
- // Check if we are currently rendering in the pbuffer
- if (wglGetCurrentContext() == _hGLContext)
- wglMakeCurrent(0,0);
- if (!_bCopyContext)
- wglDeleteContext( _hGLContext);
- wglReleasePbufferDCARBPtr( _hPBuffer, _hDC);
- wglDestroyPbufferARBPtr( _hPBuffer );
- _hPBuffer = 0;
- return true;
- }
-#elif defined( __MACH__ )
- if ( _hPBuffer )
- {
- if (CGLGetCurrentContext() == _hGLContext)
- CGLSetCurrentContext(NULL);
- if (!_bCopyContext)
- CGLDestroyContext(_hGLContext);
- CGLDestroyPBuffer(_hPBuffer);
- _hPBuffer = NULL;
- return true;
- }
-#else
- if ( _hPBuffer )
- {
- if(glXGetCurrentContext() == _hGLContext)
- // XXX I don't know if this is right at all
- glXMakeCurrent(_pDisplay, _hPBuffer, 0);
- glXDestroyPbufferPtr(_pDisplay, _hPBuffer);
- _hPBuffer = 0;
- }
-#endif
- else {
- SG_LOG(SG_GL, SG_ALERT, "RenderTexture::Resize(): failed to resize.");
- return false;
- }
- _bInitialized = false;
- return Initialize(iWidth, iHeight, _bShareObjects, _bCopyContext);
-}
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::BeginCapture
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::BeginCapture()
-* @brief Activates rendering to the RenderTexture.
-*/
-bool RenderTexture::BeginCapture()
-{
- if (!_bInitialized)
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture::BeginCapture(): Texture is not initialized!");
- return false;
- }
-#ifdef _WIN32
- // cache the current context so we can reset it when EndCapture() is called.
- _hPreviousDC = wglGetCurrentDC();
- if (NULL == _hPreviousDC)
- _wglGetLastError();
- _hPreviousContext = wglGetCurrentContext();
- if (NULL == _hPreviousContext)
- _wglGetLastError();
-#elif defined( __MACH__ )
- _hPreviousContext = CGLGetCurrentContext();
-#else
- _hPreviousContext = glXGetCurrentContext();
- _hPreviousDrawable = glXGetCurrentDrawable();
-#endif
-
- _ReleaseBoundBuffers();
-
- return _MakeCurrent();
-}
-
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::EndCapture
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::EndCapture()
-* @brief Ends rendering to the RenderTexture.
-*/
-bool RenderTexture::EndCapture()
-{
- if (!_bInitialized)
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture::EndCapture() : Texture is not initialized!");
- return false;
- }
-
- glFlush(); // Added by a-lex
-
- _MaybeCopyBuffer();
-
-#ifdef _WIN32
- // make the previous rendering context current
- if (FALSE == wglMakeCurrent( _hPreviousDC, _hPreviousContext))
- {
- _wglGetLastError();
- return false;
- }
-#elif defined( __MACH__ )
- CGLError err;
- if (err = CGLSetCurrentContext(_hPreviousContext))
- {
- _cglCheckError(err);
- return false;
- }
-#else
- if (False == glXMakeCurrent(_pDisplay, _hPreviousDrawable,
- _hPreviousContext))
- {
- return false;
- }
-#endif
-
- // rebind the textures to a buffers for RTT
- BindBuffer(_iCurrentBoundBuffer);
- _BindDepthBuffer();
-
- return true;
-}
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::BeginCapture(RenderTexture*)
-// Description :
-//---------------------------------------------------------------------------
-/**
- * @fn RenderTexture::BeginCapture(RenderTexture* other)
- * @brief Ends capture of 'other', begins capture on 'this'
- *
- * When performing a series of operations where you modify one texture after
- * another, it is more efficient to use this method instead of the equivalent
- * 'EndCapture'/'BeginCapture' pair. This method switches directly to the
- * new context rather than changing to the default context, and then to the
- * new context.
- *
- * RenderTexture doesn't have any mechanism for determining if
- * 'current' really is currently active, so no error will be thrown
- * if it is not.
- */
-bool RenderTexture::BeginCapture(RenderTexture* current)
-{
- // bool bContextReset = false;
-
- if (current == this) {
- return true; // no switch necessary
- }
- if (!current) {
- // treat as normal Begin if current is 0.
- return BeginCapture();
- }
- if (!_bInitialized)
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture::BeginCapture(RenderTexture*): Texture is not initialized!");
- return false;
- }
- if (!current->_bInitialized)
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture::BeginCapture(RenderTexture): 'current' texture is not initialized!");
- return false;
- }
-
- // Sync current pbuffer with its CTT texture if necessary
- current->_MaybeCopyBuffer();
-
- // pass along the previous context so we can reset it when
- // EndCapture() is called.
-#ifdef _WIN32
- _hPreviousDC = current->_hPreviousDC;
- if (NULL == _hPreviousDC)
- _wglGetLastError();
- _hPreviousContext = current->_hPreviousContext;
- if (NULL == _hPreviousContext)
- _wglGetLastError();
-#elif defined( __MACH__ )
- _hPreviousContext = current->_hPreviousContext;
-#else
- _hPreviousContext = current->_hPreviousContext;
- _hPreviousDrawable = current->_hPreviousDrawable;
-#endif
-
- // Unbind textures before making context current
- if (!_ReleaseBoundBuffers())
- return false;
-
- // Make the pbuffer context current
- if (!_MakeCurrent())
- return false;
-
- // Rebind buffers of initial RenderTexture
- current->BindBuffer(_iCurrentBoundBuffer);
- current->_BindDepthBuffer();
-
- return true;
-}
-
-
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::Bind
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::Bind()
-* @brief Binds RGB texture.
-*/
-void RenderTexture::Bind() const
-{
- if (_bInitialized && _bIsTexture)
- {
- glBindTexture(_iTextureTarget, _iTextureID);
- }
-}
-
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::BindDepth
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::BindDepth()
-* @brief Binds depth texture.
-*/
-void RenderTexture::BindDepth() const
-{
- if (_bInitialized && _bIsDepthTexture)
- {
- glBindTexture(_iTextureTarget, _iDepthTextureID);
- }
-}
-
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::BindBuffer
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::BindBuffer()
-* @brief Associate the RTT texture id with 'iBuffer' (e.g. WGL_FRONT_LEFT_ARB)
-*/
-bool RenderTexture::BindBuffer( int iBuffer )
-{
- // Must bind the texture too
- if (_bInitialized && _bIsTexture)
- {
- glBindTexture(_iTextureTarget, _iTextureID);
-
-#ifdef _WIN32
- if (RT_RENDER_TO_TEXTURE == _eUpdateMode && _bIsTexture &&
- (!_bIsBufferBound || _iCurrentBoundBuffer != iBuffer))
- {
- if (FALSE == wglBindTexImageARBPtr(_hPBuffer, iBuffer))
- {
- // WVB: WGL API considers binding twice to the same buffer
- // to be an error. But we don't want to
- //_wglGetLastError();
- //return false;
- SetLastError(0);
- }
- _bIsBufferBound = true;
- _iCurrentBoundBuffer = iBuffer;
- }
-#elif defined(__MACH__)
- if (RT_RENDER_TO_TEXTURE == _eUpdateMode && _bIsTexture &&
- (!_bIsBufferBound || _iCurrentBoundBuffer != iBuffer))
- {
- CGLError err;
- if (err=CGLTexImagePBuffer(CGLGetCurrentContext(), _hPBuffer, iBuffer))
- {
- _cglCheckError(err);
- }
- _bIsBufferBound = true;
- _iCurrentBoundBuffer = iBuffer;
- }
-#endif
- }
- return true;
-}
-
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::BindDepthBuffer
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::_BindDepthBuffer()
-* @brief Associate the RTT depth texture id with the depth buffer
-*/
-bool RenderTexture::_BindDepthBuffer() const
-{
-#ifdef WIN32
- if (_bInitialized && _bIsDepthTexture &&
- RT_RENDER_TO_TEXTURE == _eUpdateMode)
- {
- glBindTexture(_iTextureTarget, _iDepthTextureID);
- if (FALSE == wglBindTexImageARBPtr(_hPBuffer, WGL_DEPTH_COMPONENT_NV))
- {
- _wglGetLastError();
- return false;
- }
- }
-#elif defined(__MACH__)
- if (_bInitialized && _bIsDepthTexture &&
- RT_RENDER_TO_TEXTURE == _eUpdateMode)
- {
- glBindTexture(_iTextureTarget, _iDepthTextureID);
- //if (FALSE == CGLTexImagePBuffer(<#CGLContextObj ctx#>,<#CGLPBufferObj pbuffer#>,<#unsigned long source#>)(_hPBuffer, WGL_DEPTH_COMPONENT_NV))
- //{
- // _wglGetLastError();
- // return false;
- //}
- }
-#endif
- return true;
-}
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::_ParseModeString
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::_ParseModeString()
-* @brief Parses the user-specified mode string for RenderTexture parameters.
-*/
-void RenderTexture::_ParseModeString(const char *modeString,
- vector<int> &pfAttribs,
- vector<int> &pbAttribs)
-{
- dbg_printf("RenderTexture::_ParseModeString(%s). BGN vf=%d vp=%d\n", modeString, (int)pfAttribs.size(), (int)pbAttribs.size() );
- if (!modeString || strcmp(modeString, "") == 0)
- return;
-
- _iNumComponents = 0;
-#if defined(_WIN32) || defined(__MACH__)
- _eUpdateMode = RT_RENDER_TO_TEXTURE;
-#else
- _eUpdateMode = RT_COPY_TO_TEXTURE;
-#endif
-
- int iDepthBits = 0;
- bool bHasStencil = false;
- bool bBind2D = false;
- bool bBindRECT = false;
- bool bBindCUBE = false;
-
- char *mode = strdup(modeString);
-
-
- vector<string> tokens;
- char *buf = strtok(mode, " ");
- while (buf != NULL)
- {
- tokens.push_back(buf);
- buf = strtok(NULL, " ");
- }
- free(mode);
- for (unsigned int i = 0; i < tokens.size(); i++)
- {
- string token = tokens[i];
-
- KeyVal kv = _GetKeyValuePair(token);
-
-
- if (kv.first == "rgb" && (_iNumComponents <= 1))
- {
- if (kv.second.find("f") != kv.second.npos)
- _bFloat = true;
-
- vector<int> bitVec = _ParseBitVector(kv.second);
-
- if (bitVec.size() < 3) // expand the scalar to a vector
- {
- bitVec.push_back(bitVec[0]);
- bitVec.push_back(bitVec[0]);
- }
-
-#ifdef _WIN32
- pfAttribs.push_back(WGL_RED_BITS_ARB);
- pfAttribs.push_back(bitVec[0]);
- pfAttribs.push_back(WGL_GREEN_BITS_ARB);
- pfAttribs.push_back(bitVec[1]);
- pfAttribs.push_back(WGL_BLUE_BITS_ARB);
- pfAttribs.push_back(bitVec[2]);
-#elif defined( __MACH__ )
-# if 0
- pfAttribs.push_back(AGL_RED_SIZE);
- pfAttribs.push_back(bitVec[0]);
- pfAttribs.push_back(AGL_GREEN_SIZE);
- pfAttribs.push_back(bitVec[1]);
- pfAttribs.push_back(AGL_BLUE_SIZE);
- pfAttribs.push_back(bitVec[2]);
-# else
- pfAttribs.push_back(kCGLPFAColorSize);
- pfAttribs.push_back(bitVec[0] + bitVec[1] + bitVec[2]);
-# endif
-#else
- pfAttribs.push_back(GLX_RED_SIZE);
- pfAttribs.push_back(bitVec[0]);
- pfAttribs.push_back(GLX_GREEN_SIZE);
- pfAttribs.push_back(bitVec[1]);
- pfAttribs.push_back(GLX_BLUE_SIZE);
- pfAttribs.push_back(bitVec[2]);
-#endif
- _iNumComponents += 3;
- continue;
- }
- else if (kv.first == "rgb")
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Warning: mistake in components definition "
- "(rgb + " << _iNumComponents << ").");
- dbg_printf("RenderTexture Warning 1: mistake in components definition "
- "(rgb + %d).\n", _iNumComponents );
- }
-
- if (kv.first == "rgba" && (_iNumComponents == 0))
- {
- if (kv.second.find("f") != kv.second.npos)
- _bFloat = true;
-
- vector<int> bitVec = _ParseBitVector(kv.second);
-
- if (bitVec.size() < 4) // expand the scalar to a vector
- {
- bitVec.push_back(bitVec[0]);
- bitVec.push_back(bitVec[0]);
- bitVec.push_back(bitVec[0]);
- }
-
-#ifdef _WIN32
- pfAttribs.push_back(WGL_RED_BITS_ARB);
- pfAttribs.push_back(bitVec[0]);
- pfAttribs.push_back(WGL_GREEN_BITS_ARB);
- pfAttribs.push_back(bitVec[1]);
- pfAttribs.push_back(WGL_BLUE_BITS_ARB);
- pfAttribs.push_back(bitVec[2]);
- pfAttribs.push_back(WGL_ALPHA_BITS_ARB);
- pfAttribs.push_back(bitVec[3]);
-#elif defined( __MACH__ )
-# if 0
- pfAttribs.push_back(AGL_RED_SIZE);
- pfAttribs.push_back(bitVec[0]);
- pfAttribs.push_back(AGL_GREEN_SIZE);
- pfAttribs.push_back(bitVec[1]);
- pfAttribs.push_back(AGL_BLUE_SIZE);
- pfAttribs.push_back(bitVec[2]);
- pfAttribs.push_back(AGL_ALPHA_SIZE);
- pfAttribs.push_back(bitVec[3]);
-# else
- pfAttribs.push_back(kCGLPFAColorSize);
- pfAttribs.push_back(bitVec[0] + bitVec[1] + bitVec[2] + bitVec[3]);
- //pfAttribs.push_back(kCGLPFAAlphaSize);
- //pfAttribs.push_back(bitVec[3]);
- // printf("Color size: %d\n", bitVec[0] + bitVec[1] + bitVec[2] + bitVec[3]);
-
-# endif
-#else
- pfAttribs.push_back(GLX_RED_SIZE);
- pfAttribs.push_back(bitVec[0]);
- pfAttribs.push_back(GLX_GREEN_SIZE);
- pfAttribs.push_back(bitVec[1]);
- pfAttribs.push_back(GLX_BLUE_SIZE);
- pfAttribs.push_back(bitVec[2]);
- pfAttribs.push_back(GLX_ALPHA_SIZE);
- pfAttribs.push_back(bitVec[3]);
-#endif
- _iNumComponents = 4;
- continue;
- }
- else if (kv.first == "rgba")
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Warning: mistake in components definition "
- "(rgba + " << _iNumComponents << ").");
- dbg_printf("RenderTexture Warning 2: mistake in components definition "
- "(rgb + %d).\n", _iNumComponents );
- }
-
- if (kv.first == "r" && (_iNumComponents <= 1))
- {
- if (kv.second.find("f") != kv.second.npos)
- _bFloat = true;
-
- vector<int> bitVec = _ParseBitVector(kv.second);
-
-#ifdef _WIN32
- pfAttribs.push_back(WGL_RED_BITS_ARB);
- pfAttribs.push_back(bitVec[0]);
-#elif defined( __MACH__ )
-# if 0
- pfAttribs.push_back(AGL_RED_SIZE);
- pfAttribs.push_back(bitVec[0]);
-# else
- pfAttribs.push_back(kCGLPFAColorSize);
- pfAttribs.push_back(bitVec[0]);
-# endif
-#else
- pfAttribs.push_back(GLX_RED_SIZE);
- pfAttribs.push_back(bitVec[0]);
-#endif
- _iNumComponents++;
- continue;
- }
- else if (kv.first == "r")
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Warning: mistake in components definition "
- "(r + " << _iNumComponents << ").");
- dbg_printf("RenderTexture Warning 3: mistake in components definition "
- "(rgb + %d).\n", _iNumComponents );
- }
- if (kv.first == "rg" && (_iNumComponents <= 1))
- {
- if (kv.second.find("f") != kv.second.npos)
- _bFloat = true;
-
- vector<int> bitVec = _ParseBitVector(kv.second);
-
- if (bitVec.size() < 2) // expand the scalar to a vector
- {
- bitVec.push_back(bitVec[0]);
- }
-
-#ifdef _WIN32
- pfAttribs.push_back(WGL_RED_BITS_ARB);
- pfAttribs.push_back(bitVec[0]);
- pfAttribs.push_back(WGL_GREEN_BITS_ARB);
- pfAttribs.push_back(bitVec[1]);
-#elif defined( __MACH__ )
-# if 0
- pfAttribs.push_back(AGL_RED_SIZE);
- pfAttribs.push_back(bitVec[0]);
- pfAttribs.push_back(AGL_GREEN_SIZE);
- pfAttribs.push_back(bitVec[1]);
-# else
- pfAttribs.push_back(kCGLPFAColorSize);
- pfAttribs.push_back(bitVec[0] + bitVec[1]);
-# endif
-#else
- pfAttribs.push_back(GLX_RED_SIZE);
- pfAttribs.push_back(bitVec[0]);
- pfAttribs.push_back(GLX_GREEN_SIZE);
- pfAttribs.push_back(bitVec[1]);
-#endif
- _iNumComponents += 2;
- continue;
- }
- else if (kv.first == "rg")
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Warning: mistake in components definition "
- "(rg + " << _iNumComponents << ").");
- dbg_printf("RenderTexture Warning 4: mistake in components definition "
- "(rgb + %d).\n", _iNumComponents );
- }
-
- if (kv.first == "depth")
- {
- if (kv.second == "")
- iDepthBits = 24;
- else
- iDepthBits = strtol(kv.second.c_str(), 0, 10);
- continue;
- }
-
- if (kv.first == "stencil")
- {
- bHasStencil = true;
-#ifdef _WIN32
- pfAttribs.push_back(WGL_STENCIL_BITS_ARB);
-#elif defined( __MACH__ )
-# if 0
- pfAttribs.push_back(AGL_STENCIL_SIZE);
-# else
- pfAttribs.push_back(kCGLPFAStencilSize);
-# endif
-#else
- pfAttribs.push_back(GLX_STENCIL_SIZE);
-#endif
- if (kv.second == "")
- pfAttribs.push_back(8);
- else
- pfAttribs.push_back(strtol(kv.second.c_str(), 0, 10));
- continue;
- }
-
- if (kv.first == "samples")
- {
-#ifdef _WIN32
- pfAttribs.push_back(WGL_SAMPLE_BUFFERS_ARB);
- pfAttribs.push_back(1);
- pfAttribs.push_back(WGL_SAMPLES_ARB);
- pfAttribs.push_back(strtol(kv.second.c_str(), 0, 10));
-#elif defined( __MACH__ )
-# if 0
- pfAttribs.push_back(AGL_SAMPLE_BUFFERS_ARB);
- pfAttribs.push_back(1);
- pfAttribs.push_back(AGL_SAMPLES_ARB);
-# else
- pfAttribs.push_back(kCGLPFAMultisample);
- pfAttribs.push_back(kCGLPFASamples);
-# endif
- pfAttribs.push_back(strtol(kv.second.c_str(), 0, 10));
-#else
- pfAttribs.push_back(GLX_SAMPLE_BUFFERS_ARB);
- pfAttribs.push_back(1);
- pfAttribs.push_back(GLX_SAMPLES_ARB);
- pfAttribs.push_back(strtol(kv.second.c_str(), 0, 10));
-#endif
- continue;
-
- }
-
- if (kv.first == "doublebuffer" || kv.first == "double")
- {
-#ifdef _WIN32
- pfAttribs.push_back(WGL_DOUBLE_BUFFER_ARB);
- pfAttribs.push_back(true);
-#elif defined( __MACH__ )
-# if 0
- pfAttribs.push_back(AGL_DOUBLEBUFFER);
- pfAttribs.push_back(True);
-# else
- pfAttribs.push_back(kCGLPFADoubleBuffer);
-# endif
-#else
- pfAttribs.push_back(GLX_DOUBLEBUFFER);
- pfAttribs.push_back(True);
-#endif
- continue;
- }
-
- if (kv.first == "aux")
- {
-#ifdef _WIN32
- pfAttribs.push_back(WGL_AUX_BUFFERS_ARB);
-#elif defined( __MACH__ )
-# if 0
- pfAttribs.push_back(AGL_AUX_BUFFERS);
-# else
- pfAttribs.push_back(kCGLPFAAuxBuffers);
-# endif
-#else
- pfAttribs.push_back(GLX_AUX_BUFFERS);
-#endif
- if (kv.second == "")
- pfAttribs.push_back(0);
- else
- pfAttribs.push_back(strtol(kv.second.c_str(), 0, 10));
- continue;
- }
-
- if (token.find("tex") == 0)
- {
- _bIsTexture = true;
-
- if ((kv.first == "texRECT") && (GL_NV_texture_rectangle ||
- GL_EXT_texture_rectangle))
- {
- _bRectangle = true;
- bBindRECT = true;
- }
- else if (kv.first == "texCUBE")
- {
- bBindCUBE = true;
- }
- else
- {
- bBind2D = true;
- }
-
- continue;
- }
-
- if (token.find("depthTex") == 0)
- {
- _bIsDepthTexture = true;
-
- if ((kv.first == "depthTexRECT") && (GL_NV_texture_rectangle ||
- GL_EXT_texture_rectangle))
- {
- _bRectangle = true;
- bBindRECT = true;
- }
- else if (kv.first == "depthTexCUBE")
- {
- bBindCUBE = true;
- }
- else
- {
- bBind2D = true;
- }
-
- continue;
- }
-
- if (kv.first == "mipmap")
- {
- _bMipmap = true;
- continue;
- }
-
- if (kv.first == "rtt")
- {
- _eUpdateMode = RT_RENDER_TO_TEXTURE;
- continue;
- }
-
- if (kv.first == "ctt")
- {
- _eUpdateMode = RT_COPY_TO_TEXTURE;
- continue;
- }
-
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: Unknown pbuffer attribute: " <<
- token.c_str());
- dbg_printf("RenderTexture Error: Uknown pbuffer attribute: %s\n",
- token.c_str() );
- }
-
- // Processing of some options must be last because of interactions.
-
- // Check for inconsistent texture targets
- if (_bIsTexture && _bIsDepthTexture && !(bBind2D ^ bBindRECT ^ bBindCUBE))
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Warning: Depth and Color texture targets "
- "should match.");
- dbg_printf( "RenderTexture Warning: Depth and Color texture targets should match.\n");
- }
-
- // Apply default bit format if none specified
-#ifdef _WIN32
- if (0 == _iNumComponents)
- {
- pfAttribs.push_back(WGL_RED_BITS_ARB);
- pfAttribs.push_back(8);
- pfAttribs.push_back(WGL_GREEN_BITS_ARB);
- pfAttribs.push_back(8);
- pfAttribs.push_back(WGL_BLUE_BITS_ARB);
- pfAttribs.push_back(8);
- pfAttribs.push_back(WGL_ALPHA_BITS_ARB);
- pfAttribs.push_back(8);
- _iNumComponents = 4;
- }
-#endif
-
- // Depth bits
- if (_bIsDepthTexture && !iDepthBits)
- iDepthBits = 24;
-
-#ifdef _WIN32
- pfAttribs.push_back(WGL_DEPTH_BITS_ARB);
-#elif defined( __MACH__ )
-# if 0
- pfAttribs.push_back(AGL_DEPTH_SIZE);
-# else
- pfAttribs.push_back(kCGLPFADepthSize);
-# endif
-#else
- pfAttribs.push_back(GLX_DEPTH_SIZE);
-#endif
- pfAttribs.push_back(iDepthBits); // default
-
- if (!bHasStencil)
- {
-#ifdef _WIN32
- pfAttribs.push_back(WGL_STENCIL_BITS_ARB);
- pfAttribs.push_back(0);
-#elif defined( __MACH__ )
-# if 0
- pfAttribs.push_back(AGL_STENCIL_SIZE);
-# else
- pfAttribs.push_back(kCGLPFAStencilSize);
-# endif
- pfAttribs.push_back(0);
-#else
- pfAttribs.push_back(GLX_STENCIL_SIZE);
- pfAttribs.push_back(0);
-#endif
-
- }
- if (_iNumComponents < 4)
- {
- // Can't do this right now -- on NVIDIA drivers, currently get
- // a non-functioning pbuffer if ALPHA_BITS=0 and
- // WGL_BIND_TO_TEXTURE_RGB_ARB=true
-
- //pfAttribs.push_back(WGL_ALPHA_BITS_ARB);
- //pfAttribs.push_back(0);
- }
-
-#ifdef _WIN32
- if (!WGL_NV_render_depth_texture && _bIsDepthTexture && (RT_RENDER_TO_TEXTURE == _eUpdateMode))
- {
-#if defined(DEBUG) || defined(_DEBUG)
- SG_LOG(SG_GL, SG_ALERT, "RenderTexture Warning: No support found for "
- "render to depth texture.");
-#endif
- dbg_printf("RenderTexture Warning: No support found for render to depth texture.\n");
- _bIsDepthTexture = false;
- }
-#endif
-
- if ((_bIsTexture || _bIsDepthTexture) &&
- (RT_RENDER_TO_TEXTURE == _eUpdateMode))
- {
-#ifdef _WIN32
- if (bBindRECT)
- {
- pbAttribs.push_back(WGL_TEXTURE_TARGET_ARB);
- pbAttribs.push_back(WGL_TEXTURE_RECTANGLE_NV);
- }
- else if (bBindCUBE)
- {
- pbAttribs.push_back(WGL_TEXTURE_TARGET_ARB);
- pbAttribs.push_back(WGL_TEXTURE_CUBE_MAP_ARB);
- }
- else if (bBind2D)
- {
- pbAttribs.push_back(WGL_TEXTURE_TARGET_ARB);
- pbAttribs.push_back(WGL_TEXTURE_2D_ARB);
- }
-
- if (_bMipmap)
- {
- pbAttribs.push_back(WGL_MIPMAP_TEXTURE_ARB);
- pbAttribs.push_back(true);
- }
-#elif defined(__MACH__)
-#elif defined(DEBUG) || defined(_DEBUG)
- SG_LOG(SG_GL, SG_INFO, "RenderTexture Error: Render to Texture not "
- "supported in Linux or MacOS");
-#endif
- }
-
- // Set the pixel type
- if (_bFloat)
- {
-#ifdef _WIN32
- if (WGL_NV_float_buffer)
- {
- pfAttribs.push_back(WGL_PIXEL_TYPE_ARB);
- pfAttribs.push_back(WGL_TYPE_RGBA_ARB);
-
- pfAttribs.push_back(WGL_FLOAT_COMPONENTS_NV);
- pfAttribs.push_back(true);
- }
- else
- {
- pfAttribs.push_back(WGL_PIXEL_TYPE_ARB);
- pfAttribs.push_back(WGL_TYPE_RGBA_FLOAT_ATI);
- }
-#elif defined( __MACH__ )
- // if (GL_MACH_float_pixels) // FIXME
- {
- pfAttribs.push_back(kCGLPFAColorFloat);
- }
-#else
- if (GLX_NV_float_buffer)
- {
- pfAttribs.push_back(GLX_FLOAT_COMPONENTS_NV);
- pfAttribs.push_back(1);
- }
-#endif
- }
- else
- {
-#ifdef _WIN32
- pfAttribs.push_back(WGL_PIXEL_TYPE_ARB);
- pfAttribs.push_back(WGL_TYPE_RGBA_ARB);
-#endif
- }
-
- // Set up texture binding for render to texture
- if (_bIsTexture && (RT_RENDER_TO_TEXTURE == _eUpdateMode))
- {
-
-#ifdef _WIN32
- if (_bFloat)
- {
- if (WGL_NV_float_buffer)
- {
- switch(_iNumComponents)
- {
- case 1:
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_R_NV);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_FLOAT_R_NV);
- break;
- case 2:
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RG_NV);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_FLOAT_RG_NV);
- break;
- case 3:
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGB_NV);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_FLOAT_RGB_NV);
- break;
- case 4:
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGBA_NV);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_FLOAT_RGBA_NV);
- break;
- default:
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Warning: Bad number of components "
- "(r=1,rg=2,rgb=3,rgba=4): " <<
- _iNumComponents);
- dbg_printf("RenderTexture Warning 1: Bad number of components (r=1,rg=2,rgb=3,rgba=4): %d\n",
- _iNumComponents);
- break;
- }
- }
- else
- {
- if (4 == _iNumComponents)
- {
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RGBA_ARB);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_RGBA_ARB);
- }
- else
- {
- // standard ARB_render_texture only supports 3 or 4 channels
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RGB_ARB);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_RGB_ARB);
- }
- }
-
- }
- else
- {
- switch(_iNumComponents)
- {
- case 3:
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RGB_ARB);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_RGB_ARB);
- break;
- case 4:
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RGBA_ARB);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_RGBA_ARB);
- break;
- default:
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Warning: Bad number of components "
- "(r=1,rg=2,rgb=3,rgba=4): " << _iNumComponents);
- dbg_printf("RenderTexture Warning 2: Bad number of components (r=1,rg=2,rgb=3,rgba=4): %d\n",
- _iNumComponents);
- break;
- }
- }
-#elif defined(__MACH__)
- if (_bFloat)
- {
- /*
- //if (WGLEW_NV_float_buffer) // FIXME
- {
- switch(_iNumComponents)
- {
- case 1:
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_R_NV);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_FLOAT_R_NV);
- break;
- case 2:
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RG_NV);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_FLOAT_RG_NV);
- break;
- case 3:
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGB_NV);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_FLOAT_RGB_NV);
- break;
- case 4:
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGBA_NV);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_FLOAT_RGBA_NV);
- break;
- default:
- fprintf(stderr,
- "RenderTexture Warning: Bad number of components "
- "(r=1,rg=2,rgb=3,rgba=4): %d.\n",
- _iNumComponents);
- break;
- }
- }
- else
- {
- if (4 == _iNumComponents)
- {
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RGBA_ARB);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_RGBA_ARB);
- }
- else
- {
- // standard ARB_render_texture only supports 3 or 4 channels
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RGB_ARB);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_RGB_ARB);
- }
- }
- */
- }
- else
- {
- /*
- switch(_iNumComponents)
- {
- case 3:
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RGB_ARB);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_RGB_ARB);
- break;
- case 4:
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RGBA_ARB);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_TEXTURE_FORMAT_ARB);
- pbAttribs.push_back(WGL_TEXTURE_RGBA_ARB);
- break;
- default:
- fprintf(stderr,
- "RenderTexture Warning: Bad number of components "
- "(r=1,rg=2,rgb=3,rgba=4): %d.\n", _iNumComponents);
- break;
- }
- */
- }
-#elif defined(DEBUG) || defined(_DEBUG)
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: Render to Texture not supported in Linux or MacOS");
-#endif
- dbg_printf( "RenderTexture Error 1: Render to Texture not supported in Linux or MacOS\n");
- }
-
- if (_bIsDepthTexture && (RT_RENDER_TO_TEXTURE == _eUpdateMode))
- {
-#ifdef _WIN32
- if (_bRectangle)
- {
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_RECTANGLE_DEPTH_NV);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_DEPTH_TEXTURE_FORMAT_NV);
- pbAttribs.push_back(WGL_TEXTURE_DEPTH_COMPONENT_NV);
- }
- else
- {
- pfAttribs.push_back(WGL_BIND_TO_TEXTURE_DEPTH_NV);
- pfAttribs.push_back(true);
-
- pbAttribs.push_back(WGL_DEPTH_TEXTURE_FORMAT_NV);
- pbAttribs.push_back(WGL_TEXTURE_DEPTH_COMPONENT_NV);
- }
-#elif defined(__MACH__)
-#elif defined(DEBUG) || defined(_DEBUG)
- SG_LOG(SG_GL, SG_INFO, "RenderTexture Error: Render to Texture not supported in "
- "Linux or MacOS");
-#endif
- dbg_printf( "RenderTexture Error 2: Render to Texture not supported in Linux or MacOS\n");
- }
- dbg_printf("RenderTexture::_ParseModeString(%s). END vf=%d vp=%d\n", modeString, (int)pfAttribs.size(), (int)pbAttribs.size() );
-
-}
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::_GetKeyValuePair
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::_GetKeyValuePair()
-* @brief Parses expressions of the form "X=Y" into a pair (X,Y).
-*/
-RenderTexture::KeyVal RenderTexture::_GetKeyValuePair(string token)
-{
- string::size_type pos = 0;
- if ((pos = token.find("=")) != token.npos)
- {
- string key = token.substr(0, pos);
- string value = token.substr(pos+1, token.length()-pos+1);
- return KeyVal(key, value);
- }
- else
- return KeyVal(token, "");
-}
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::_ParseBitVector
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::_ParseBitVector()
-* @brief Parses expressions of the form "=r,g,b,a" into a vector: (r,g,b,a)
-*/
-vector<int> RenderTexture::_ParseBitVector(string bitVector)
-{
- vector<string> pieces;
- vector<int> bits;
-
- if (bitVector == "")
- {
- bits.push_back(8); // if a depth isn't specified, use default 8 bits
- return bits;
- }
-
- string::size_type pos = 0;
- string::size_type nextpos = 0;
- do
- {
- nextpos = bitVector.find_first_of(", ", pos);
- pieces.push_back(string(bitVector, pos, nextpos - pos));
- pos = nextpos+1;
- } while (nextpos != bitVector.npos );
-
- for ( vector<string>::iterator it = pieces.begin(); it != pieces.end(); it++)
- {
- bits.push_back(strtol(it->c_str(), 0, 10));
- }
-
- return bits;
-}
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::_VerifyExtensions
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::_VerifyExtensions()
-* @brief Checks that the necessary extensions are available based on RT mode.
-*/
-bool RenderTexture::_VerifyExtensions()
-{
- dbg_printf("RenderTexture::_VerifyExtensions() called...\n");
-#ifdef _WIN32
- // a second call to _VerifyExtensions will allways return true, causing a crash
- // if the extension is not supported
- if ( true || !fctPtrInited )
- {
- fctPtrInited = true;
- wglGetExtensionsStringARBProc wglGetExtensionsStringARBPtr = (wglGetExtensionsStringARBProc)wglGetProcAddress( "wglGetExtensionsStringARB" );
- if ( wglGetExtensionsStringARBPtr == 0 )
- {
- PrintExtensionError("WGL_ARB_extensions_string");
- return false;
- }
- string wglExtensionsString = wglGetExtensionsStringARBPtr( wglGetCurrentDC() );
- if ( SGSearchExtensionsString( wglExtensionsString.c_str(), "WGL_ARB_pixel_format" ) )
- {
- wglChoosePixelFormatARBPtr = (wglChoosePixelFormatARBProc)SGLookupFunction("wglChoosePixelFormatARB");
- wglGetPixelFormatAttribivARBPtr = (wglGetPixelFormatAttribivARBProc)SGLookupFunction("wglGetPixelFormatAttribivARB");
- }
- else
- {
- PrintExtensionError("WGL_ARB_pixel_format");
- return false;
- }
- if ( SGSearchExtensionsString( wglExtensionsString.c_str(), "WGL_ARB_pbuffer" ) )
- {
- wglCreatePbufferARBPtr = (wglCreatePbufferARBProc)SGLookupFunction("wglCreatePbufferARB");
- wglGetPbufferDCARBPtr = (wglGetPbufferDCARBProc)SGLookupFunction("wglGetPbufferDCARB");
- wglQueryPbufferARBPtr = (wglQueryPbufferARBProc)SGLookupFunction("wglQueryPbufferARB");
- wglReleasePbufferDCARBPtr = (wglReleasePbufferDCARBProc)SGLookupFunction("wglReleasePbufferDCARB");
- wglDestroyPbufferARBPtr = (wglDestroyPbufferARBProc)SGLookupFunction("wglDestroyPbufferARB");
- }
- else
- {
- PrintExtensionError("WGL_ARB_pbuffer");
- return false;
- }
- if ( SGSearchExtensionsString( wglExtensionsString.c_str(), "WGL_ARB_render_texture" ) )
- {
- wglBindTexImageARBPtr = (wglBindTexImageARBProc)SGLookupFunction("wglBindTexImageARB");
- wglReleaseTexImageARBPtr = (wglReleaseTexImageARBProc)SGLookupFunction("wglReleaseTexImageARB");
- }
- else if ( _bIsTexture )
- {
- PrintExtensionError("WGL_ARB_render_texture");
- return false;
- }
- if (_bRectangle && !SGIsOpenGLExtensionSupported( "GL_NV_texture_rectangle" ))
- {
- PrintExtensionError("GL_NV_texture_rectangle");
- return false;
- }
- if (_bFloat && !(SGIsOpenGLExtensionSupported( "GL_NV_float_buffer" ) ||
- SGSearchExtensionsString( wglExtensionsString.c_str(), "WGL_ATI_pixel_format_float" )))
- {
- PrintExtensionError("GL_NV_float_buffer or GL_ATI_pixel_format_float");
- return false;
-
- }
- if (_bFloat && _bIsTexture && !(SGIsOpenGLExtensionSupported( "GL_NV_float_buffer" ) || SGIsOpenGLExtensionSupported( "GL_ATI_texture_float" )))
- {
- PrintExtensionError("NV_float_buffer or ATI_texture_float");
- }
- if (_bIsDepthTexture && !SGIsOpenGLExtensionSupported( "GL_ARB_depth_texture" ))
- {
- // [Redge]
-#if defined(_DEBUG) | defined(DEBUG)
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Warning: "
- "OpenGL extension GL_ARB_depth_texture not available."
- " Using glReadPixels() to emulate behavior.");
-#endif
- _bHasARBDepthTexture = false;
- //PrintExtensionError("GL_ARB_depth_texture");
- //return false;
- // [/Redge]
- }
- SetLastError(0);
- }
-#elif defined( __MACH__ )
- // FIXME! Check extensions!
-#else
- Display* dpy = glXGetCurrentDisplay();
- int minor = 0, major = 0;
- if (!dpy) {
- dbg_printf("_VerifyExtensions: glXGetCurrentDisplay() returned NULL! returning false\n");
- return false;
- }
- if (!glXQueryVersion(dpy, &major, &minor))
- {
- dbg_printf("_VerifyExtensions: glXQueryVersion(dpy, &major, &minor) FAILED! returning false\n");
- return false;
- }
- else
- {
- dbg_printf("_VerifyExtensions: glXQueryVersion(dpy, major=%d, minor=%d)\n", major, minor);
- }
-
- int screen = DefaultScreen(dpy);
- const char* extString = glXQueryExtensionsString(dpy, screen);
- dbg_printf("_VerifyExtensions: glXQueryExtensionsString(dpy, screen) returned -\n[%s]\n",
- (extString ? extString : "<NULL>") );
- if (!SGSearchExtensionsString(extString, "GLX_SGIX_fbconfig") ||
- !SGSearchExtensionsString(extString, "GLX_SGIX_pbuffer"))
- {
- dbg_printf("_VerifyExtensions: glXQueryExtensionsString(dpy,screen) does NOT contain GLX_SGIX_fbconfig or GLX_SGIX_pbuffer!\n" );
- const char * extClient = glXGetClientString( dpy, GLX_EXTENSIONS );
- if (!extClient ||
- !SGSearchExtensionsString(extClient, "GLX_SGIX_fbconfig") ||
- !SGSearchExtensionsString(extClient, "GLX_SGIX_pbuffer"))
- {
- dbg_printf("_VerifyExtensions: AND glXGetClientString(dpy,GLX_EXTENSIONS) also! returning false\n" );
- return false;
- }
- else
- {
- dbg_printf("_VerifyExtensions: BUT glXGetClientString(dpy,GLX_EXTENSIONS) returned \n[%s]\n", extClient );
- dbg_printf("Since this DOES contain fbconfig and pbuffer, continuing...\n");
- }
- }
- // First try the glX version 1.3 functions.
- glXChooseFBConfigPtr = (glXChooseFBConfigProc)SGLookupFunction("glXChooseFBConfig");
- glXCreatePbufferPtr = (glXCreatePbufferProc)SGLookupFunction("glXCreatePbuffer");
- glXGetVisualFromFBConfigPtr = (glXGetVisualFromFBConfigProc)SGLookupFunction("glXGetVisualFromFBConfig");
- glXCreateContextPtr = (glXCreateContextProc)SGLookupFunction("glXCreateContext");
- glXDestroyPbufferPtr = (glXDestroyPbufferProc)SGLookupFunction("glXDestroyPbuffer");
- glXQueryDrawablePtr = (glXQueryDrawableProc)SGLookupFunction("glXQueryDrawable");
-
- if (((1 <= major && 3 <= minor) || 2 <= major) &&
- glXChooseFBConfigPtr &&
- glXCreatePbufferPtr &&
- glXGetVisualFromFBConfigPtr &&
- glXCreateContextPtr &&
- glXDestroyPbufferPtr &&
- glXQueryDrawablePtr) {
- dbg_printf("_VerifyExtensions: setting glXVersion1_3Present TRUE\n" );
- glXVersion1_3Present = true;
- }
- else
- {
- dbg_printf("_VerifyExtensions: setting glXVersion1_3Present FALSE\n Reason: " );
- if ( !((1 <= major && 3 <= minor) || 2 <= major) ) { dbg_printf( "Version wrong %d.%d ", major, minor ); }
- if ( !glXChooseFBConfigPtr ) { dbg_printf( "missing glXChooseFBConfigPtr " ); }
- if ( !glXCreatePbufferPtr ) { dbg_printf( "missing glXCreatePbufferPtr " ); }
- if ( !glXGetVisualFromFBConfigPtr ) { dbg_printf( "missing glXGetVisualFromFBConfigPtr " ); }
- if ( !glXCreateContextPtr ) { dbg_printf( "missing glXCreateContextPtr " ); }
- if ( !glXDestroyPbufferPtr ) { dbg_printf( "missing glXDestroyPbufferPtr " ); }
- if ( !glXQueryDrawablePtr ) { dbg_printf( "missing glXQueryDrawablePtr " ); }
- dbg_printf("\n");
-
- glXChooseFBConfigPtr = (glXChooseFBConfigProc)SGLookupFunction("glXChooseFBConfigSGIX");
- glXCreateGLXPbufferPtr = (glXCreateGLXPbufferProc)SGLookupFunction("glXCreateGLXPbufferSGIX");
- glXGetVisualFromFBConfigPtr = (glXGetVisualFromFBConfigProc)SGLookupFunction("glXGetVisualFromFBConfigSGIX");
- glXCreateContextWithConfigPtr = (glXCreateContextWithConfigProc)SGLookupFunction("glXCreateContextWithConfigSGIX");
- glXDestroyPbufferPtr = (glXDestroyPbufferProc)SGLookupFunction("glXDestroyGLXPbufferSGIX");
- glXQueryGLXPbufferSGIXPtr = (glXQueryGLXPbufferSGIXProc)SGLookupFunction("glXQueryGLXPbufferSGIX");
-
- if (!glXChooseFBConfigPtr ||
- !glXCreateGLXPbufferPtr ||
- !glXGetVisualFromFBConfigPtr ||
- !glXCreateContextWithConfigPtr ||
- !glXDestroyPbufferPtr ||
- !glXQueryGLXPbufferSGIXPtr)
- {
- dbg_printf("_VerifyExtensions: some pointer is NULL! return false\n" );
- if ( !glXCreateGLXPbufferPtr ) {
- dbg_printf("RenderTexture::Initialize: ERROR glXCreateGLXPbufferPtr = NULL!\n");
- } else if ( !glXCreateContextWithConfigPtr ) {
- dbg_printf("RenderTexture::Initialize: ERROR glXCreateContextWithConfigPtr = NULL!\n");
- } else if ( !glXVersion1_3Present && !glXQueryGLXPbufferSGIXPtr ) {
- dbg_printf("RenderTexture::Initialize: ERROR glXQueryGLXPbufferSGIXPtr = NULL!\n");
- }
- return false;
- } else {
- dbg_printf("_VerifyExtensions: appear to have all 'procs' glXCreateGLXPbufferPtr=[%p]\n", glXCreateGLXPbufferPtr );
- }
- }
-
- if (_bIsDepthTexture && !GL_ARB_depth_texture)
- {
- PrintExtensionError("GL_ARB_depth_texture");
- return false;
- }
- if (_bFloat && _bIsTexture && !GLX_NV_float_buffer)
- {
- PrintExtensionError("GLX_NV_float_buffer");
- return false;
- }
- if (_eUpdateMode == RT_RENDER_TO_TEXTURE)
- {
- PrintExtensionError("Some GLX render texture extension: Please implement me!");
- return false;
- }
-#endif
-
- dbg_printf("RenderTexture::_VerifyExtensions: return true.\n");
- return true;
-}
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::_InitializeTextures
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::_InitializeTextures()
-* @brief Initializes the state of textures used by the RenderTexture.
-*/
-bool RenderTexture::_InitializeTextures()
-{
- dbg_printf( "RenderTexture::_InitializeTextures() called\n" );
- // Determine the appropriate texture formats and filtering modes.
-
- if (_bIsTexture || _bIsDepthTexture)
- {
- if (_bRectangle && GL_NV_texture_rectangle)
- _iTextureTarget = GL_TEXTURE_RECTANGLE_NV;
- else if (_bRectangle && GL_EXT_texture_rectangle)
- _iTextureTarget = GL_TEXTURE_RECTANGLE_EXT;
- else
- _iTextureTarget = GL_TEXTURE_2D;
- }
-
- if (_bIsTexture)
- {
- glGenTextures(1, (GLuint*)&_iTextureID);
- glBindTexture(_iTextureTarget, _iTextureID);
-
- // Use clamp to edge as the default texture wrap mode for all tex
- glTexParameteri(_iTextureTarget, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- glTexParameteri(_iTextureTarget, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- // Use NEAREST as the default texture filtering mode.
- glTexParameteri(_iTextureTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(_iTextureTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-
-
- if (RT_COPY_TO_TEXTURE == _eUpdateMode)
- {
- GLuint iInternalFormat;
- GLuint iFormat;
-
- if (_bFloat)
- {
- if (_bMipmap)
- {
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: mipmapped float textures not "
- "supported.");
- dbg_printf( "RenderTexture Error: mipmapped float textures not supported. return false\n");
- return false;
- }
-
- switch(_iNumComponents)
- {
- case 1:
- if (GL_NV_float_buffer)
- {
- iInternalFormat = (_iNumColorBits[0] > 16) ?
- GL_FLOAT_R32_NV : GL_FLOAT_R16_NV;
- }
- else if (GL_ATI_texture_float)
- {
- iInternalFormat = (_iNumColorBits[0] > 16) ?
- GL_LUMINANCE_FLOAT32_ATI :
- GL_LUMINANCE_FLOAT16_ATI;
- }
- iFormat = GL_LUMINANCE;
- break;
- case 2:
- if (GL_NV_float_buffer)
- {
- iInternalFormat = (_iNumColorBits[0] > 16) ?
- GL_FLOAT_RG32_NV : GL_FLOAT_RG16_NV;
- }
- else if (GL_ATI_texture_float)
- {
- iInternalFormat = (_iNumColorBits[0] > 16) ?
- GL_LUMINANCE_ALPHA_FLOAT32_ATI :
- GL_LUMINANCE_ALPHA_FLOAT16_ATI;
- }
- iFormat = GL_LUMINANCE_ALPHA;
- break;
- case 3:
- if (GL_NV_float_buffer)
- {
- iInternalFormat = (_iNumColorBits[0] > 16) ?
- GL_FLOAT_RGB32_NV : GL_FLOAT_RGB16_NV;
- }
- else if (GL_ATI_texture_float)
- {
- iInternalFormat = (_iNumColorBits[0] > 16) ?
- GL_RGB_FLOAT32_ATI : GL_RGB_FLOAT16_ATI;
- }
- iFormat = GL_RGB;
- break;
- case 4:
- if (GL_NV_float_buffer)
- {
- iInternalFormat = (_iNumColorBits[0] > 16) ?
- GL_FLOAT_RGBA32_NV : GL_FLOAT_RGBA16_NV;
- }
- else if (GL_ATI_texture_float)
- {
- iInternalFormat = (_iNumColorBits[0] > 16) ?
- GL_RGBA_FLOAT32_ATI : GL_RGBA_FLOAT16_ATI;
- }
- iFormat = GL_RGBA;
- break;
- default:
- SG_LOG(SG_GL, SG_INFO, "RenderTexture Error: "
- "Invalid number of components: " <<
- _iNumComponents);
- dbg_printf( "RenderTexture Error: Invalid number of components: %d - return false\n",
- _iNumComponents);
- return false;
- }
- }
- else // non-float
- {
- if (4 == _iNumComponents)
- {
- iInternalFormat = GL_RGBA8;
- iFormat = GL_RGBA;
- }
- else
- {
- iInternalFormat = GL_RGB8;
- iFormat = GL_RGB;
- }
- }
-
- // Allocate the texture image (but pass it no data for now).
- glTexImage2D(_iTextureTarget, 0, iInternalFormat,
- _iWidth, _iHeight, 0, iFormat, GL_FLOAT, NULL);
- }
- }
-
- if (_bIsDepthTexture)
- {
- glGenTextures(1, (GLuint*)&_iDepthTextureID);
- glBindTexture(_iTextureTarget, _iDepthTextureID);
-
- // Use clamp to edge as the default texture wrap mode for all tex
- glTexParameteri(_iTextureTarget, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- glTexParameteri(_iTextureTarget, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- // Use NEAREST as the default texture filtering mode.
- glTexParameteri(_iTextureTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(_iTextureTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-
- if (RT_COPY_TO_TEXTURE == _eUpdateMode)
- {
- // [Redge]
- if (_bHasARBDepthTexture)
- {
- // Allocate the texture image (but pass it no data for now).
- glTexImage2D(_iTextureTarget, 0, GL_DEPTH_COMPONENT,
- _iWidth, _iHeight, 0, GL_DEPTH_COMPONENT,
- GL_FLOAT, NULL);
- }
- else
- {
- // allocate memory for depth texture
- // Since this is slow, we warn the user in debug mode. (above)
- _pPoorDepthTexture = new unsigned short[_iWidth * _iHeight];
- glTexImage2D(_iTextureTarget, 0, GL_LUMINANCE16,
- _iWidth, _iHeight, 0, GL_LUMINANCE,
- GL_UNSIGNED_SHORT, _pPoorDepthTexture);
- }
- // [/Redge]
- }
- }
-
- dbg_printf( "RenderTexture::_InitializeTextures() returning true\n" );
- return true;
-}
-
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::_MaybeCopyBuffer
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::_MaybeCopyBuffer()
-* @brief Does the actual copying for RenderTextures with RT_COPY_TO_TEXTURE
-*/
-void RenderTexture::_MaybeCopyBuffer()
-{
-#ifdef _WIN32
- if (RT_COPY_TO_TEXTURE == _eUpdateMode)
- {
- if (_bIsTexture)
- {
- glBindTexture(_iTextureTarget, _iTextureID);
- glCopyTexSubImage2D(_iTextureTarget,
- 0, 0, 0, 0, 0, _iWidth, _iHeight);
- }
- if (_bIsDepthTexture)
- {
- glBindTexture(_iTextureTarget, _iDepthTextureID);
- // HOW TO COPY DEPTH TEXTURE??? Supposedly this just magically works...
- // [Redge]
- if (_bHasARBDepthTexture)
- {
- glCopyTexSubImage2D(_iTextureTarget, 0, 0, 0, 0, 0,
- _iWidth, _iHeight);
- }
- else
- {
- // no 'real' depth texture available, so behavior has to be emulated
- // using glReadPixels (beware, this is (naturally) slow ...)
- glReadPixels(0, 0, _iWidth, _iHeight, GL_DEPTH_COMPONENT,
- GL_UNSIGNED_SHORT, _pPoorDepthTexture);
- glTexImage2D(_iTextureTarget, 0, GL_LUMINANCE16,
- _iWidth, _iHeight, 0, GL_LUMINANCE,
- GL_UNSIGNED_SHORT, _pPoorDepthTexture);
- }
- // [/Redge]
- }
- }
-
-#elif defined(__MACH__)
- if (RT_COPY_TO_TEXTURE == _eUpdateMode)
- {
- if (_bIsTexture)
- {
- glBindTexture(_iTextureTarget, _iTextureID);
- glCopyTexSubImage2D(_iTextureTarget, 0, 0, 0, 0, 0, _iWidth, _iHeight);
- }
- if (_bIsDepthTexture)
- {
- glBindTexture(_iTextureTarget, _iDepthTextureID);
- assert(_bHasARBDepthTexture);
- glCopyTexSubImage2D(_iTextureTarget, 0, 0, 0, 0, 0, _iWidth, _iHeight);
- }
- }
-#else
- if (_bIsTexture)
- {
- glBindTexture(_iTextureTarget, _iTextureID);
- glCopyTexSubImage2D(_iTextureTarget, 0, 0, 0, 0, 0, _iWidth, _iHeight);
- }
- if (_bIsDepthTexture)
- {
- glBindTexture(_iTextureTarget, _iDepthTextureID);
- assert(_bHasARBDepthTexture);
- glCopyTexSubImage2D(_iTextureTarget, 0, 0, 0, 0, 0, _iWidth, _iHeight);
- }
-#endif
-
-}
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::_ReleaseBoundBuffers
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::_ReleaseBoundBuffers()
-* @brief Releases buffer bindings on RenderTextures with RT_RENDER_TO_TEXTURE
-*/
-bool RenderTexture::_ReleaseBoundBuffers()
-{
-#ifdef _WIN32
- if (_bIsTexture && RT_RENDER_TO_TEXTURE == _eUpdateMode)
- {
- glBindTexture(_iTextureTarget, _iTextureID);
-
- // release the pbuffer from the render texture object
- if (0 != _iCurrentBoundBuffer && _bIsBufferBound)
- {
- if (FALSE == wglReleaseTexImageARBPtr(_hPBuffer, _iCurrentBoundBuffer))
- {
- _wglGetLastError();
- return false;
- }
- _bIsBufferBound = false;
- }
- }
-
- if (_bIsDepthTexture && RT_RENDER_TO_TEXTURE == _eUpdateMode)
- {
- glBindTexture(_iTextureTarget, _iDepthTextureID);
-
- // release the pbuffer from the render texture object
- if (FALSE == wglReleaseTexImageARBPtr(_hPBuffer, WGL_DEPTH_COMPONENT_NV))
- {
- _wglGetLastError();
- return false;
- }
- }
-
-#else
- // textures can't be bound in Linux
-#endif
- return true;
-}
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::_MakeCurrent
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::_MakeCurrent()
-* @brief Makes the RenderTexture's context current
-*/
-bool RenderTexture::_MakeCurrent()
-{
-#ifdef _WIN32
- // make the pbuffer's rendering context current.
- if (FALSE == wglMakeCurrent( _hDC, _hGLContext))
- {
- _wglGetLastError();
- return false;
- }
-#elif defined( __MACH__ )
- CGLError err;
-
- if (err = CGLSetCurrentContext(_hGLContext))
- {
- _cglCheckError(err);
- return false;
- }
-#else
-static GLXContext last_hGLContext = 0;
- if (false == glXMakeCurrent(_pDisplay, _hPBuffer, _hGLContext))
- {
- dbg_printf( "_MakeCurrent: glXMakeCurrent FAILED! returning false\n");
- return false;
- }
-
- if ( last_hGLContext != _hGLContext ) {
- last_hGLContext = _hGLContext;
- dbg_printf( "_MakeCurrent: glXMakeCurrent set to [%p] SUCCESS! returning true\n", _hGLContext );
- }
-#endif
- return true;
-}
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// Begin Deprecated Interface
-//
-/////////////////////////////////////////////////////////////////////////////
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::RenderTexture
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::RenderTexture()
-* @brief Constructor.
-*/
-RenderTexture::RenderTexture(int width, int height,
- bool bIsTexture /* = true */,
- bool bIsDepthTexture /* = false */)
-: _iWidth(width),
- _iHeight(height),
- _bIsTexture(bIsTexture),
- _bIsDepthTexture(bIsDepthTexture),
- _bHasARBDepthTexture(true), // [Redge]
- _eUpdateMode(RT_RENDER_TO_TEXTURE),
- _bInitialized(false),
- _iNumAuxBuffers(0),
- _iCurrentBoundBuffer(0),
- _iNumDepthBits(0),
- _iNumStencilBits(0),
- _bFloat(false),
- _bDoubleBuffered(false),
- _bPowerOf2(true),
- _bRectangle(false),
- _bMipmap(false),
- _bShareObjects(false),
- _bCopyContext(false),
-#ifdef _WIN32
- _hDC(NULL),
- _hGLContext(NULL),
- _hPBuffer(NULL),
- _hPreviousDC(0),
- _hPreviousContext(0),
-#elif defined( __MACH__ )
- _hGLContext(NULL),
- _hPBuffer(NULL),
- _hPreviousContext(NULL),
-#else
- _pDisplay(NULL),
- _hGLContext(NULL),
- _hPBuffer(0),
- _hPreviousDrawable(0),
- _hPreviousContext(0),
-#endif
- _iTextureTarget(GL_NONE),
- _iTextureID(0),
- _iDepthTextureID(0),
- _pPoorDepthTexture(0) // [Redge]
-{
- assert(width > 0 && height > 0);
-#if defined DEBUG || defined _DEBUG
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Warning: Deprecated Contructor interface used.");
-#endif
- dbg_printf("RenderTexture Warning: Deprecated Contructor interface used.\n");
-
- _iNumColorBits[0] = _iNumColorBits[1] =
- _iNumColorBits[2] = _iNumColorBits[3] = 0;
- _bPowerOf2 = IsPowerOfTwo(width) && IsPowerOfTwo(height);
-}
-
-//------------------------------------------------------------------------------
-// Function : RenderTexture::Initialize
-// Description :
-//------------------------------------------------------------------------------
-/**
-* @fn RenderTexture::Initialize(bool bShare, bool bDepth, bool bStencil, bool bMipmap, unsigned int iRBits, unsigned int iGBits, unsigned int iBBits, unsigned int iABits);
-* @brief Initializes the RenderTexture, sharing display lists and textures if specified.
-*
-* This function actually does the creation of the p-buffer. It can only be called
-* once a GL context has already been created. Note that if the texture is not
-* power of two dimensioned, or has more than 8 bits per channel, enabling mipmapping
-* will cause an error.
-*/
-bool RenderTexture::Initialize(bool bShare /* = true */,
- bool bDepth /* = false */,
- bool bStencil /* = false */,
- bool bMipmap /* = false */,
- bool bAnisoFilter /* = false */,
- unsigned int iRBits /* = 8 */,
- unsigned int iGBits /* = 8 */,
- unsigned int iBBits /* = 8 */,
- unsigned int iABits /* = 8 */,
- UpdateMode updateMode /* = RT_RENDER_TO_TEXTURE */)
-{
- if (0 == _iWidth || 0 == _iHeight)
- return false;
-
-#if defined DEBUG || defined _DEBUG
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Warning: Deprecated Initialize() interface used.");
-#endif
- dbg_printf("RenderTexture Warning: Deprecated Initialize() interface used.\n");
-
- // create a mode string.
- string mode = "";
- if (bDepth)
- mode.append("depth ");
- if (bStencil)
- mode.append("stencil ");
- if (bMipmap)
- mode.append("mipmap ");
- if (iRBits + iGBits + iBBits + iABits > 0)
- {
- if (iRBits > 0)
- mode.append("r");
- if (iGBits > 0)
- mode.append("g");
- if (iBBits > 0)
- mode.append("b");
- if (iABits > 0)
- mode.append("a");
- mode.append("=");
- char bitVector[100];
- snprintf( bitVector, 100,
- "%d%s,%d%s,%d%s,%d%s",
- iRBits, (iRBits >= 16) ? "f" : "",
- iGBits, (iGBits >= 16) ? "f" : "",
- iBBits, (iBBits >= 16) ? "f" : "",
- iABits, (iABits >= 16) ? "f" : "");
- mode.append(bitVector);
- mode.append(" ");
- }
- if (_bIsTexture)
- {
- if ((GL_NV_texture_rectangle || GL_EXT_texture_rectangle) &&
- ((!IsPowerOfTwo(_iWidth) || !IsPowerOfTwo(_iHeight))
- || iRBits >= 16 || iGBits > 16 || iBBits > 16 || iABits >= 16))
- mode.append("texRECT ");
- else
- mode.append("tex2D ");
- }
- if (_bIsDepthTexture)
- {
- if ((GL_NV_texture_rectangle || GL_EXT_texture_rectangle) &&
- ((!IsPowerOfTwo(_iWidth) || !IsPowerOfTwo(_iHeight))
- || iRBits >= 16 || iGBits > 16 || iBBits > 16 || iABits >= 16))
- mode.append("texRECT ");
- else
- mode.append("tex2D ");
- }
- if (RT_COPY_TO_TEXTURE == updateMode)
- mode.append("ctt");
-
- _pixelFormatAttribs.clear();
- _pbufferAttribs.clear();
-
-#ifdef _WIN32
- _pixelFormatAttribs.push_back(WGL_DRAW_TO_PBUFFER_ARB);
- _pixelFormatAttribs.push_back(true);
- _pixelFormatAttribs.push_back(WGL_SUPPORT_OPENGL_ARB);
- _pixelFormatAttribs.push_back(true);
-
- _pbufferAttribs.push_back(WGL_PBUFFER_LARGEST_ARB);
- _pbufferAttribs.push_back(true);
-#elif defined( __MACH__ )
- //_pixelFormatAttribs.push_back(kCGLPFANoRecovery);
- _pixelFormatAttribs.push_back(kCGLPFAAccelerated);
- _pixelFormatAttribs.push_back(kCGLPFAWindow);
- _pixelFormatAttribs.push_back(kCGLPFAPBuffer);
-#else
- _pixelFormatAttribs.push_back(GLX_RENDER_TYPE_SGIX);
- _pixelFormatAttribs.push_back(GLX_RGBA_BIT_SGIX);
- _pixelFormatAttribs.push_back(GLX_DRAWABLE_TYPE_SGIX);
- _pixelFormatAttribs.push_back(GLX_PBUFFER_BIT_SGIX);
-#endif
-
- _ParseModeString(mode.c_str(), _pixelFormatAttribs, _pbufferAttribs);
-
-#ifdef _WIN32
- _pixelFormatAttribs.push_back(0);
- _pbufferAttribs.push_back(0);
-#elif defined(__MACH__)
- _pixelFormatAttribs.push_back(0);
-#else
- _pixelFormatAttribs.push_back(None);
-#endif
-
- Initialize(_iWidth, _iHeight, bShare);
-
- return true;
-}
-
-
-//---------------------------------------------------------------------------
-// Function : RenderTexture::Reset
-// Description :
-//---------------------------------------------------------------------------
-/**
-* @fn RenderTexture::Reset(int iWidth, int iHeight, unsigned int iMode, bool bIsTexture, bool bIsDepthTexture)
-* @brief Resets the resolution of the offscreen buffer.
-*
-* Causes the buffer to delete itself. User must call Initialize() again
-* before use.
-*/
-bool RenderTexture::Reset(int iWidth, int iHeight)
-{
- SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Warning: Deprecated Reset() interface used.");
-
- dbg_printf("RenderTexture Warning: Deprecated Reset(x,y) interface used.\n");
-
- if (!_Invalidate())
- {
- SG_LOG(SG_GL, SG_ALERT, "RenderTexture::Reset(): failed to invalidate.");
- dbg_printf( "RenderTexture::Reset(x,y): failed to invalidate. returning false\n");
- return false;
- }
- _iWidth = iWidth;
- _iHeight = iHeight;
-
- dbg_printf( "RenderTexture::Reset(x,y): succeeded. returning true\n");
- return true;
-}
-
-#if defined( _DEBUG ) && !defined( _WIN32 ) && !defined( __MACH__ )
-/* just some DEBUG ONLY code, to show the 'attributes' */
-
-typedef struct tagPXATTS {
- int attr;
- const char * name;
- const char * desc;
- int def;
-}PXATTS, * PPXATTS;
-
-static PXATTS pxAtts[] = {
- { GLX_FBCONFIG_ID, "GLX_FBCONFIG_ID",
- "followed by a valid XID that indicates the desired GLX frame buffer configuration. "
- "When a GLX_FBCONFIG_ID is specified, all attributes are ignored. The default value is GLX_DONT_CARE.",
- GLX_DONT_CARE },
- { GLX_BUFFER_SIZE, "GLX_BUFFER_SIZE",
- "Must be followed by a nonnegative integer that indicates the desired color index buffer size."
- "The smallest index buffer of at least the specified size is preferred. This attribute is ignored if GLX_COLOR_INDEX_BIT is not set "
- "in GLX_RENDER_TYPE. The default value is 0.",
- 0 },
- { GLX_LEVEL, "GLX_LEVEL",
- "Must be followed by an integer buffer-level specification. This specification is honored exactly."
- "Buffer level 0 corresponds to the default frame buffer of the display. "
- "Buffer level 1 is the first overlay frame buffer, level two the second overlay frame buffer, and so on."
- "Negative buffer levels correspond to underlay frame buffers. The default value is 0.",
- 0 },
- { GLX_DOUBLEBUFFER, "GLX_DOUBLEBUFFER",
- "Must be followed by True or False. If True is specified, then only double-buffered frame buffer configurations are considered;"
- "if False is specified, then only single-buffered frame buffer configurations are considered. The default value is GLX_DONT_CARE.",
- GLX_DONT_CARE },
- { GLX_STEREO, "GLX_STEREO",
- "Must be followed by True or False. If True is specified, then only stereo frame buffer configurations are considered;"
- " if False is specified, then only monoscopic frame buffer configurations are considered. The default value is False.",
- False },
- { GLX_AUX_BUFFERS, "GLX_AUX_BUFFERS",
- "Must be followed by a nonnegative integer that indicates the desired number of auxiliary buffers."
- " Configurations with the smallest number of auxiliary buffers that meet or exceed the specified number are preferred."
- " The default value is 0.",
- 0 },
- { GLX_RED_SIZE, "GLX_RED_SIZE",
- "must be followed by a nonnegative minimum size",
- 0 },
- { GLX_GREEN_SIZE, "GLX_GREEN_SIZE",
- "must be followed by a nonnegative minimum size",
- 0 },
- { GLX_BLUE_SIZE, "GLX_BLUE_SIZE",
- "must be followed by a nonnegative minimum size",
- 0 },
- { GLX_ALPHA_SIZE, "GLX_ALPHA_SIZE",
- "Each attribute, if present, must be followed by a nonnegative minimum size specification or GLX_DONT_CARE."
- " The largest available total RGBA color buffer size (sum of GLX_RED_SIZE, GLX_GREEN_SIZE, GLX_BLUE_SIZE, and GLX_ALPHA_SIZE) "
- " of at least the minimum size specified for each color component is preferred. If the requested number of bits for a color "
- " component is 0 or GLX_DONT_CARE, it is not considered. The default value for each color component is 0.",
- 0 },
- { GLX_DEPTH_SIZE, "GLX_DEPTH_SIZE",
- "Must be followed by a nonnegative minimum size specification. If this value is zero, "
- "frame buffer configurations with no depth buffer are preferred."
- "Otherwise, the largest available depth buffer of at least the minimum size is preferred. The default value is 0.",
- 0 },
- { GLX_STENCIL_SIZE, "GLX_STENCIL_SIZE",
- "Must be followed by a nonnegative integer that indicates the desired number of stencil bitplanes."
- "The smallest stencil buffer of at least the specified size is preferred. If the desired value is zero,"
- " frame buffer configurations with no stencil buffer are preferred. The default value is 0.",
- 0 },
- { GLX_ACCUM_RED_SIZE, "GLX_ACCUM_RED_SIZE",
- "Must be followed by a nonnegative minimum size specification. If this value is zero, "
- " frame buffer configurations with no red accumulation buffer are preferred."
- " Otherwise, the largest possible red accumulation buffer of at least the minimum size is preferred. The default value is 0.",
- 0 },
- { GLX_ACCUM_GREEN_SIZE, "GLX_ACCUM_GREEN_SIZE",
- "Must be followed by a nonnegative minimum size specification. If this value is zero, "
- "frame buffer configurations with no green accumulation buffer are preferred. "
- "Otherwise, the largest possible green accumulation buffer of at least the minimum size is preferred. The default value is 0.",
- 0 },
- { GLX_ACCUM_BLUE_SIZE, "GLX_ACCUM_BLUE_SIZE",
- "Must be followed by a nonnegative minimum size specification. If this value is zero, "
- "frame buffer configurations with no blue accumulation buffer are preferred. "
- "Otherwise, the largest possible blue accumulation buffer of at least the minimum size is preferred. The default value is 0.",
- 0 },
- { GLX_ACCUM_ALPHA_SIZE, "GLX_ACCUM_ALPHA_SIZE",
- "Must be followed by a nonnegative minimum size specification. If this value is zero, "
- "frame buffer configurations with no alpha accumulation buffer are preferred. "
- "Otherwise, the largest possible alpha accumulation buffer of at least the minimum size is preferred. The default value is 0.",
- 0 },
- { GLX_RENDER_TYPE, "GLX_RENDER_TYPE",
- "Must be followed by a mask indicating which OpenGL rendering modes the frame buffer configuration must support. "
- "Valid bits are GLX_RGBA_BIT and GLX_COLOR_INDEX_BIT. If the mask is set to GLX_RGBA_BIT | GLX_COLOR_INDEX_BIT, "
- "then only frame buffer configurations that can be bound to both RGBA contexts and color index contexts will be considered. "
- "The default value is GLX_RGBA_BIT.",
- GLX_RGBA_BIT },
- { GLX_DRAWABLE_TYPE, "GLX_DRAWABLE_TYPE",
- "Must be followed by a mask indicating which GLX drawable types the frame buffer configuration must support. "
- "Valid bits are GLX_WINDOW_BIT, GLX_PIXMAP_BIT, and GLX_PBUFFER_BIT. For example, if mask is set to "
- "GLX_WINDOW_BIT | GLX_PIXMAP_BIT, only frame buffer configurations that support both windows and GLX pixmaps "
- "will be considered. The default value is GLX_WINDOW_BIT.",
- GLX_WINDOW_BIT },
- { GLX_X_RENDERABLE, "GLX_X_RENDERABLE",
- "Must be followed by True or False. If True is specified, then only frame buffer configurations that "
- "have associated X visuals (and can be used to render to Windows and/or GLX pixmaps) will be considered. "
- "The default value is GLX_DONT_CARE. ",
- GLX_DONT_CARE },
- { GLX_X_VISUAL_TYPE, "GLX_X_VISUAL_TYPE",
- "Must be followed by one of GLX_TRUE_COLOR, GLX_DIRECT_COLOR, GLX_PSEUDO_COLOR, GLX_STATIC_COLOR, "
- "GLX_GRAY_SCALE, or GLX_STATIC_GRAY, indicating the desired X visual type. "
- "Not all frame buffer configurations have an associated X visual. If GLX_DRAWABLE_TYPE is specified in attrib_list and the "
- "mask that follows does not have GLX_WINDOW_BIT set, then this value is ignored. It is also ignored if "
- "GLX_X_RENDERABLE is specified as False. RGBA rendering may be supported for visuals of type "
- "GLX_TRUE_COLOR, GLX_DIRECT_COLOR, GLX_PSEUDO_COLOR, or GLX_STATIC_COLOR, "
- "but color index rendering is only supported for visuals of type GLX_PSEUDO_COLOR or GLX_STATIC_COLOR "
- "(i.e., single-channel visuals). The tokens GLX_GRAY_SCALE and GLX_STATIC_GRAY will "
- "not match current OpenGL enabled visuals, but are included for future use."
- "The default value for GLX_X_VISUAL_TYPE is GLX_DONT_CARE.",
- GLX_DONT_CARE },
- { GLX_CONFIG_CAVEAT, "GLX_CONFIG_CAVEAT",
- "Must be followed by one of GLX_NONE, GLX_SLOW_CONFIG, GLX_NON_CONFORMANT_CONFIG. "
- "If GLX_NONE is specified, then only frame buffer configurations with "
- "no caveats will be considered; if GLX_SLOW_CONFIG is specified, then only slow frame buffer configurations will be considered; if "
- "GLX_NON_CONFORMANT_CONFIG is specified, then only nonconformant frame buffer configurations will be considered."
- "The default value is GLX_DONT_CARE.",
- GLX_DONT_CARE },
- { GLX_TRANSPARENT_TYPE, "GLX_TRANSPARENT_TYPE",
- "Must be followed by one of GLX_NONE, GLX_TRANSPARENT_RGB, GLX_TRANSPARENT_INDEX. "
- "If GLX_NONE is specified, then only opaque frame buffer configurations will be considered; "
- "if GLX_TRANSPARENT_RGB is specified, then only transparent frame buffer configurations that support RGBA rendering will be considered; "
- "if GLX_TRANSPARENT_INDEX is specified, then only transparent frame buffer configurations that support color index rendering will be considered."
- "The default value is GLX_NONE.",
- GLX_NONE },
- { GLX_TRANSPARENT_INDEX_VALUE, "GLX_TRANSPARENT_INDEX_VALUE",
- "Must be followed by an integer value indicating the transparent index value; the value must be between 0 and the maximum "
- "frame buffer value for indices. Only frame buffer configurations that use the "
- "specified transparent index value will be considered. The default value is GLX_DONT_CARE. "
- "This attribute is ignored unless GLX_TRANSPARENT_TYPE is included in attrib_list and specified as GLX_TRANSPARENT_INDEX.",
- GLX_DONT_CARE },
- { GLX_TRANSPARENT_RED_VALUE, "GLX_TRANSPARENT_RED_VALUE",
- "Must be followed by an integer value indicating the transparent red value; the value must be between 0 and the maximum "
- "frame buffer value for red. Only frame buffer configurations that use the specified transparent red value will be considered. "
- "The default value is GLX_DONT_CARE. This attribute is ignored unless GLX_TRANSPARENT_TYPE is included in "
- "attrib_list and specified as GLX_TRANSPARENT_RGB.",
- GLX_DONT_CARE },
- { GLX_TRANSPARENT_GREEN_VALUE, "GLX_TRANSPARENT_GREEN_VALUE",
- "Must be followed by an integer value indicating the transparent green value; the value must be between 0 and the maximum "
- "frame buffer value for green. Only frame buffer configurations that use the specified transparent green value will be considered."
- "The default value is GLX_DONT_CARE. This attribute is "
- "ignored unless GLX_TRANSPARENT_TYPE is included in attrib_list and specified as GLX_TRANSPARENT_RGB.",
- GLX_DONT_CARE },
- { GLX_TRANSPARENT_BLUE_VALUE, "GLX_TRANSPARENT_BLUE_VALUE",
- "Must be followed by an integer value indicating the transparent blue value; the value must be between 0 and the maximum "
- "frame buffer value for blue. Only frame buffer configurations that use the specified transparent blue value will be considered."
- "The default value is GLX_DONT_CARE. This attribute is ignored unless GLX_TRANSPARENT_TYPE is included in "
- "attrib_list and specified as GLX_TRANSPARENT_RGB. ",
- GLX_DONT_CARE },
- { GLX_TRANSPARENT_ALPHA_VALUE, "GLX_TRANSPARENT_ALPHA_VALUE",
- "Must be followed by an integer value indicating the transparent alpha value; the value must be between 0 and the maximum "
- "frame buffer value for alpha. Only frame buffer configurations that use the "
- "specified transparent alpha value will be considered. The default value is GLX_DONT_CARE.",
- GLX_DONT_CARE },
- { 0, NULL, NULL, -1 }
-};
-
-const char * get_attr_name( int val, int * pdef )
-{
- PPXATTS pat = &pxAtts[0];
- while( pat->name )
- {
- if ( pat->attr == val ) {
- *pdef = pat->def;
- return pat->name;
- }
- pat++;
- }
- *pdef = -1;
- return "VALUE NOT IN LIST";
-}
-
-#endif
-// eof - RenderTexture.cpp
+++ /dev/null
-//------------------------------------------------------------------------------
-// File : RenderTexture.h
-//------------------------------------------------------------------------------
-// Copyright (c) 2002-2004 Mark J. Harris
-//---------------------------------------------------------------------------
-// This software is provided 'as-is', without any express or implied
-// warranty. In no event will the authors be held liable for any
-// damages arising from the use of this software.
-//
-// Permission is granted to anyone to use this software for any
-// purpose, including commercial applications, and to alter it and
-// redistribute it freely, subject to the following restrictions:
-//
-// 1. The origin of this software must not be misrepresented; you
-// must not claim that you wrote the original software. If you use
-// this software in a product, an acknowledgment in the product
-// documentation would be appreciated but is not required.
-//
-// 2. Altered source versions must be plainly marked as such, and
-// must not be misrepresented as being the original software.
-//
-// 3. This notice may not be removed or altered from any source
-// distribution.
-//
-// -----------------------------------------------------------------------------
-// Credits:
-// Original RenderTexture code: Mark J. Harris
-// Original Render-to-depth-texture support: Thorsten Scheuermann
-// Linux Copy-to-texture: Eric Werness
-// OS X: Alexander Powell (someone please help)
-// Various Bug Fixes: Daniel (Redge) Sperl
-// Bill Baxter
-//
-// -----------------------------------------------------------------------------
-/**
-* @file RenderTexture.h
-*
-* Interface definition for class RenderTexture. A multi-format render to
-* texture wrapper.
-*/
-#ifndef __RENDERTEXTURE2_HPP__
-#define __RENDERTEXTURE2_HPP__
-
-
-/*
- * Changelog:
- *
- * Jan. 2005, Removed GLEW dependencies, Erik Hofman
- * Mar. 2006, Added MAC OS X support, Alexander Powell
- */
-#include <simgear/compiler.h>
-
-#include <osg/GL>
-
-#if defined( __APPLE__)
-# include <OpenGL/OpenGL.h>
-#endif
-
-#if !defined( _WIN32 ) && !defined( __APPLE__ )
-# include <X11/Xlib.h>
-# include <GL/glx.h>
-#endif
-
-#include <string>
-#include <vector>
-
-/* The pixel format for the pbuffer is controlled by the mode string passed
-* into the PBuffer constructor. This string can have the following attributes:
-*
-* To specify the pixel format, use the following syntax.
-* <channels>=<bits>
-* <channels> must match one of the following.
-*
-* r - r pixel format (for float buffer).
-* rg - rg pixel format (for float buffer).
-* rgb - rgb pixel format. 8 bit or 16/32 bit in float buffer mode
-* rgba - same as "rgb alpha" string
-*
-* <bits> can either be a scalar--meaning the same bit depth for each
-* channel-- or a 2-, 3-, 4-component vector matching the specified number of
-* channels. Vector components should be comma separated. An optional 'f'
-* suffix on the bit depth specifies float components. In this case <bits>
-* must be either "32f" or "16f". If <bits> is empty, the default 8 bits per
-* channel will be used.
-* r=32f
-* rg=16f
-* rgb=8
-* rgb=5,6,5
-*
-* The following other attributes are supported.
-*
-* depth=n - must have n-bit depth buffer, omit n for default (24 bits)
-* stencil=n - must have n-bit stencil buffer, omit n for default (8 bits)
-* samples=n - must support n-sample antialiasing (n can be 2 or 4)
-* aux=n - must have n AUX buffers
-* doublebuffer - must support double buffered rendering
-*
-* tex2D
-* texRECT
-* texCUBE - must support binding pbuffer as texture to specified target
-* - binding the depth buffer is also supported by specifying
-* depthTex2D
-* depthTexRECT
-* depthTexCUBE
-* - Both depth and color texture binding, may be specified, but
-* the targets must match!
-* For example: "tex2D depthTex2D" or "texRECT depthTexRECT"
-*
-* rtt
-* ctt - These mutually exclusive options specify the update method used
-* for render textures that support texture binding. "rtt"
-* indicates that render to texture will be used to update the
-* texture. "ctt" indicates that copy to texture will be used
-* (i.e. glCopyTexSubImage2D()). "rtt" is the default if neither is
-* specified, and one of the "tex*" options above is.
-*
-*
-*---------------------------------------------------------------------------
-*
-* USAGE NOTES:
-*
-* * Texture Parameters:
-* The default texture wrap mode is GL_CLAMP_TO_EDGE for all textures, and
-* the default texture filtering modes (min and mag) are GL_NEAREST.
-* To change these parameters, simply bind the RenderTexture (using the
-* Bind() method), and set them the way you would for any GL texture object.
-* The same goes for depth textures.
-*
-* * Enabling Mipmapping:
-* This is similar to the texture parameters above. When "rtt" is specified
-* in the mode string, "mipmap" must also be specified in order to enable
-* a mipmapped pbuffer. Then, the mipmaps must be created by enabling the
-* GL_SGIS_GENERATE_MIPMAP texture parameter in the same way as above, and
-* the min filter mode must be set to a mipmap filter mode, as with any
-* mipmapped texture object.
-*
-* * Enabling Anisotropic Filtering
-* As with the texture parameters above, except as in the following code:
-* glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, max);
-* glTexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, <value < max>);
-*/
-class RenderTexture
-{
-public: // enums
- enum UpdateMode
- {
- RT_RENDER_TO_TEXTURE,
- RT_COPY_TO_TEXTURE
- };
-
-public: // interface
- // ctor / dtor
- RenderTexture(const char *strMode="rgb tex2D");
- ~RenderTexture();
-
- //! Call this once before use. Set bShare to true to share lists, textures,
- //! and program objects between the render texture context and the
- //! current active GL context.
- bool Initialize(int width, int height,
- bool shareObjects=true,
- bool copyContext=false);
-
- // !Change the render texture format.
- bool Reset(const char* strMode,...);
- // !Change the size of the render texture.
- bool Resize(int width, int height);
-
- // !Begin drawing to the texture. (i.e. use as "output" texture)
- bool BeginCapture();
- // !Ends drawing to 'current', begins drawing to this RenderTexture
- bool BeginCapture(RenderTexture* current);
- // !End drawing to the texture.
- bool EndCapture();
-
- // !Bind the texture to the active texture unit for use as an "input" texture
- void Bind() const;
-
- // !Bind the depth texture to the active texture unit for use as an "input" texture
- void BindDepth() const;
-
- // !Associate the RTT texture with 'iBuffer' (default is WGL_FRONT_LEFT_ARB)
- bool BindBuffer( int iBuffer );
-
- //! Enables the texture target appropriate for this render texture.
- void EnableTextureTarget() const
- { if (_bInitialized) glEnable(_iTextureTarget); }
- //! Disables the texture target appropriate for this render texture.
- void DisableTextureTarget() const
- { if (_bInitialized) glDisable(_iTextureTarget); }
-
- //! Returns the texture ID. Useful in Cg applications.
- unsigned int GetTextureID() const { return _iTextureID; }
- //! Returns the depth texture ID. Useful in Cg applications.
- unsigned int GetDepthTextureID() const { return _iDepthTextureID; }
- //! Returns the texture target this texture is bound to.
- unsigned int GetTextureTarget() const { return _iTextureTarget; }
- //! Conversion operator allows RenderTexture to be passed to GL calls
- operator unsigned int()const{return _iTextureID;}
-
- //! Returns the width of the offscreen buffer.
- int GetWidth() const { return _iWidth; }
- //! Returns the width of the offscreen buffer.
- int GetHeight() const { return _iHeight; }
- //! Returns the maximum S texture coordinate.
- int GetMaxS() const { return IsRectangleTexture() ? _iWidth : 1; }
- //! Returns the maximum T texture coordinate.
- int GetMaxT() const { return IsRectangleTexture() ? _iHeight : 1; }
-
- //! Returns the number of red bits allocated.
- int GetRedBits() const { return _iNumColorBits[0]; }
- //! Returns the number of green bits allocated.
- int GetGreenBits() const { return _iNumColorBits[1]; }
- //! Returns the number of blue bits allocated.
- int GetBlueBits() const { return _iNumColorBits[2]; }
- //! Returns the number of alpha bits allocated.
- int GetAlphaBits() const { return _iNumColorBits[3]; }
-
- //! Returns the number of depth bits allocated.
- int GetDepthBits() const { return _iNumDepthBits; }
- //! Returns the number of stencil bits allocated.
- int GetStencilBits() const { return _iNumStencilBits; }
-
- //! True if this RenderTexture has been properly initialized.
- bool IsInitialized() const { return _bInitialized; }
- //! True if this is a texture and not just an offscreen buffer.
- bool IsTexture() const { return _bIsTexture; }
- //! True if this is a depth texture and not just an offscreen buffer.
- bool IsDepthTexture() const { return _bIsDepthTexture; }
- //! True if this is a floating point buffer / texture.
- bool IsFloatTexture() const { return _bFloat; }
- //! True if this is a double-buffered pbuffer
- bool IsDoubleBuffered() const { return _bDoubleBuffered; }
- //! True if this texture has non-power-of-two dimensions.
- bool IsRectangleTexture() const { return _bRectangle; }
- //! True if this texture has non-power-of-two dimensions.
- //! True if this pbuffer has a depth buffer.
- bool HasDepth() const { return (_iNumDepthBits > 0); }
- //! True if this pbuffer has a stencil buffer.
- bool HasStencil() const { return (_iNumStencilBits > 0); }
- //! True if this texture has mipmaps.
- bool IsMipmapped() const { return _bMipmap; }
-
- /**
- * @fn IsPowerOfTwo(int n)
- * @brief Returns true if /param n is an integer power of 2.
- *
- * Taken from Steve Baker's Cute Code Collection.
- * http://www.sjbaker.org/steve/software/cute_code.html
- */
- static bool IsPowerOfTwo(int n) { return ((n&(n-1))==0); }
-
-
- /////////////////////////////////////////////////////////////////////////
- // This is the deprecated (old) interface. It will likely be removed
- // in a future version, so it is recommended that you transition to the
- // new mode-string-based interface.
- RenderTexture(int width, int height,
- bool bIsTexture = true,
- bool bIsDepthTexture = false);
- //
- // Call this once before use. Set bShare to true to share lists,
- // textures, and program objects between the render texture context
- // and the current active GL context. [deprecated]
- bool Initialize(bool bShare = true,
- bool bDepth = false,
- bool bStencil = false,
- bool bMipmap = false,
- bool bAnisoFilter = false,
- unsigned int iRBits = 8,
- unsigned int iGBits = 8,
- unsigned int iBBits = 8,
- unsigned int iABits = 8,
-// Only Win32 has RT now, so only make it default there
-#ifdef _WIN32
- UpdateMode updateMode = RT_RENDER_TO_TEXTURE
-#else
- UpdateMode updateMode = RT_COPY_TO_TEXTURE
-#endif
- );
- // !Change the render texture resolution. [deprecated]
- bool Reset(int iWidth, int iHeight);
- //
- /////////////////////////////////////////////////////////////////////////
-
-
-protected: // methods
- bool _Invalidate();
-
- typedef std::pair<std::string, std::string> KeyVal;
-
- void _ParseModeString(const char *modeString,
- std::vector<int> &pixelFormatAttribs,
- std::vector<int> &pbufferAttribs);
-
- std::vector<int> _ParseBitVector(std::string bitVector);
- KeyVal _GetKeyValuePair(std::string token);
-
-
- bool _VerifyExtensions();
- bool _InitializeTextures();
-
- void _MaybeCopyBuffer();
- bool _ReleaseBoundBuffers();
- bool _MakeCurrent();
- bool _BindDepthBuffer( ) const;
-
-protected: // data
- int _iWidth; // width of the pbuffer
- int _iHeight; // height of the pbuffer
-
- bool _bIsTexture;
- bool _bIsDepthTexture;
- bool _bHasARBDepthTexture; // [Redge]
-
- UpdateMode _eUpdateMode;
-
- bool _bInitialized;
-
- unsigned int _iNumAuxBuffers;
- bool _bIsBufferBound;
- int _iCurrentBoundBuffer;
-
- unsigned int _iNumComponents;
- unsigned int _iNumColorBits[4];
- unsigned int _iNumDepthBits;
- unsigned int _iNumStencilBits;
-
-
- bool _bFloat;
- bool _bDoubleBuffered;
- bool _bPowerOf2;
- bool _bRectangle;
- bool _bMipmap;
-
- bool _bShareObjects;
- bool _bCopyContext;
-
-#ifdef _WIN32
- HDC _hDC; // Handle to a device context.
- HGLRC _hGLContext; // Handle to a GL context.
- HPBUFFERARB _hPBuffer; // Handle to a pbuffer.
-
- HDC _hPreviousDC;
- HGLRC _hPreviousContext;
-#elif defined( __MACH__ )
- CGLContextObj _hGLContext;
- CGLPBufferObj _hPBuffer;
-
- CGLContextObj _hPreviousContext;
-#else
- Display *_pDisplay;
- GLXContext _hGLContext;
- GLXPbuffer _hPBuffer;
-
- GLXDrawable _hPreviousDrawable;
- GLXContext _hPreviousContext;
-#endif
-
- // Texture stuff
- GLenum _iTextureTarget;
- GLuint _iTextureID;
- GLuint _iDepthTextureID;
-
- unsigned short* _pPoorDepthTexture; // [Redge]
-
- std::vector<int> _pixelFormatAttribs;
- std::vector<int> _pbufferAttribs;
-
-private:
- // Using these could lead to some odd behavior
- RenderTexture(const RenderTexture&);
- RenderTexture& operator=(const RenderTexture&);
-};
-
-#endif //__RENDERTEXTURE2_HPP__
+++ /dev/null
-
-#ifdef HAVE_CONFIG_H
-# include <simgear/simgear_config.h>
-#endif
-
-#ifdef HAVE_WINDOWS_H
-# include <windows.h>
-#endif
-
-#include <simgear/compiler.h>
-
-#include <osg/GL>
-
-#ifdef __APPLE__
-# include <GLUT/glut.h>
-#else
-# include <GL/glut.h>
-#endif
-
-#include <simgear/debug/logstream.hxx>
-#include <simgear/screen/extensions.hxx>
-#include <simgear/screen/RenderTexture.h>
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-// DEBUG - add a lot of noise
-//#ifndef _DEBUG
-//#define _DEBUG
-//#endif
-
-#if defined (_DEBUG)
-const char * get_attr_name( int val, int * pdef );
-#define dbg_printf printf
-#else
-#if defined (__GNUC__)
-#define dbg_printf(format,args...) ((void)0)
-#else // defined (__GNUC__)
-#define dbg_printf
-#endif // defined (__GNUC__)
-#endif // defined (_DEBUG)
-
-
-void Reshape(int w, int h);
-
-GLuint iTextureProgram = 0;
-GLuint iPassThroughProgram = 0;
-
-RenderTexture *rt = NULL;
-
-float rectAngle = 0;
-float torusAngle = 0;
-bool bTorusMotion = true;
-bool bRectMotion = true;
-bool bShowDepthTexture = false;
-
-static const char *g_modeTestStrings[] =
-{
- "rgb tex2D",
- "rgba tex2D depthTex2D",
- "rgba=8 depthTexRECT ctt",
- "rgba samples=4 tex2D ctt",
- "rgba=8 tex2D mipmap",
- "rgb=5,6,5 tex2D",
- "rgba=16f texRECT",
- "rgba=32f texRECT depthTexRECT",
- "rgba=16f texRECT depthTexRECT ctt",
- "r=32f texRECT depth ctt",
- "rgb double tex2D",
- "r=32f texRECT ctt aux=4"
-};
-
-static int g_numModeTestStrings = sizeof(g_modeTestStrings) / sizeof(char*);
-static int g_currentString = 0;
-
-//---------------------------------------------------------------------------
-// Function : PrintGLerror
-// Description :
-//---------------------------------------------------------------------------
-void PrintGLerror( const char *msg )
-{
- GLenum errCode;
- const GLubyte *errStr;
-
- if ((errCode = glGetError()) != GL_NO_ERROR)
- {
- errStr = gluErrorString(errCode);
- fprintf(stderr,"OpenGL ERROR: %s: %s\n", errStr, msg);
- }
-}
-
-//---------------------------------------------------------------------------
-// Function : CreateRenderTexture
-// Description :
-//---------------------------------------------------------------------------
-RenderTexture* CreateRenderTexture(const char *initstr)
-{
- printf("\nCreating with init string: \"%s\"\n", initstr);
-
- int texWidth = 256, texHeight = 256;
-
- // Test deprecated interface
- //RenderTexture *rt2 = new RenderTexture(texWidth, texHeight);
- //if (!rt2->Initialize(true,false,false,false,false,8,8,8,0))
-
- RenderTexture *rt2 = new RenderTexture();
- rt2->Reset(initstr);
- if (!rt2->Initialize(texWidth, texHeight))
- {
- fprintf(stderr, "RenderTexture Initialization failed!\n");
- }
- else
- {
- printf("RenderTexture Initialization done.\n");
- }
-
- // for shadow mapping we still have to bind it and set the correct
- // texture parameters using the SGI_shadow or ARB_shadow extension
- // setup the rendering context for the RenderTexture
- if (rt2->BeginCapture())
- {
- Reshape(texWidth, texHeight);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- gluLookAt(0, 0, 3, 0, 0, 0, 0, 1, 0);
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
- glEnable(GL_COLOR_MATERIAL);
- glEnable(GL_CULL_FACE);
- glEnable(GL_DEPTH_TEST);
- glClearColor(0.2, 0.2, 0.2, 1);
- rt2->EndCapture();
- }
-
- // enable linear filtering if available
- if (rt2->IsTexture() || rt2->IsDepthTexture())
- {
- if (rt2->IsMipmapped())
- {
- // Enable trilinear filtering so we can see the mipmapping
- if (rt2->IsTexture())
- {
- rt2->Bind();
- glTexParameteri(rt2->GetTextureTarget(),
- GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
- glTexParameteri(rt2->GetTextureTarget(),
- GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(rt2->GetTextureTarget(),
- GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
- }
-
- if (rt2->IsDepthTexture())
- {
- rt2->BindDepth();
- glTexParameteri(rt2->GetTextureTarget(),
- GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
- glTexParameteri(rt2->GetTextureTarget(),
- GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(rt2->GetTextureTarget(),
- GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
- }
- }
- else if (!(rt2->IsRectangleTexture() || rt2->IsFloatTexture()))
- {
- if (rt2->IsTexture())
- {
- rt2->Bind();
- glTexParameteri(rt2->GetTextureTarget(),
- GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(rt2->GetTextureTarget(),
- GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- }
-
- if (rt2->IsDepthTexture())
- {
- rt2->BindDepth();
- glTexParameteri(rt2->GetTextureTarget(),
- GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(rt2->GetTextureTarget(),
- GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- }
- }
- }
-
- if (rt2->IsDepthTexture())
- {
- fprintf(stderr,
- "\nPress the spacebar to toggle color / depth textures.\n");
- if (!rt2->IsTexture())
- bShowDepthTexture = true;
- }
- else
- {
- if (rt2->IsTexture())
- bShowDepthTexture = false;
- }
-
- PrintGLerror("Create");
- return rt2;
-}
-
-//---------------------------------------------------------------------------
-// Function : DestroyRenderTexture
-// Description :
-//---------------------------------------------------------------------------
-void DestroyRenderTexture(RenderTexture *rt2)
-{
- delete rt2;
-}
-
-//---------------------------------------------------------------------------
-// Function : Keyboard
-// Description :
-//---------------------------------------------------------------------------
-void Keyboard(unsigned char key, int x, int y)
-{
- switch(key)
- {
- case 27:
- case 'q':
- exit(0);
- break;
- case ' ':
- bShowDepthTexture = !bShowDepthTexture;
- break;
- case 13:
- ++g_currentString %= g_numModeTestStrings;
- dbg_printf("Changed to #%d = [%s]\n", g_currentString, g_modeTestStrings[g_currentString]);
- DestroyRenderTexture(rt);
- rt = CreateRenderTexture(g_modeTestStrings[g_currentString]);
- break;
- case 't':
- bTorusMotion = !bTorusMotion;
- break;
- case 'r':
- bRectMotion = !bRectMotion;
- break;
- default:
- return;
- }
-}
-
-//---------------------------------------------------------------------------
-// Function : Idle
-// Description :
-//---------------------------------------------------------------------------
-void Idle()
-{
- // make sure we don't try to display nonexistent textures
- if (!rt->IsDepthTexture())
- bShowDepthTexture = false;
-
- if (bRectMotion) rectAngle += 1;
- if (bTorusMotion) torusAngle += 1;
- glutPostRedisplay();
-}
-
-//---------------------------------------------------------------------------
-// Function : Reshape
-// Description :
-//---------------------------------------------------------------------------
-void Reshape(int w, int h)
-{
- if (h == 0) h = 1;
-
- glViewport(0, 0, w, h);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
-
- gluPerspective(60.0, (GLfloat)w/(GLfloat)h, 1, 5.0);
-}
-
-//---------------------------------------------------------------------------
-// Function : Display
-// Description :
-//---------------------------------------------------------------------------
-void _Display()
-{
- if (rt->IsInitialized() && rt->BeginCapture())
- {
- if (rt->IsDoubleBuffered()) glDrawBuffer(GL_BACK);
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
-
- glRotatef(torusAngle, 1, 0, 0);
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- glColor3f(1,1,0);
-
- glutSolidTorus(0.25, 1, 32, 64);
-
- glPopMatrix();
- PrintGLerror("RT Update");
-
- rt->EndCapture();
- }
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- glColor3f(1, 1, 1);
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
- glRotatef(rectAngle / 10, 0, 1, 0);
-
- if(bShowDepthTexture && rt->IsDepthTexture())
- rt->BindDepth();
- else if (rt->IsTexture()) {
- rt->Bind();
- }
-
- rt->EnableTextureTarget();
-
- int maxS = rt->GetMaxS();
- int maxT = rt->GetMaxT();
-
- glBegin(GL_QUADS);
- glTexCoord2f(0, 0); glVertex2f(-1, -1);
- glTexCoord2f(maxS, 0); glVertex2f( 1, -1);
- glTexCoord2f(maxS, maxT); glVertex2f( 1, 1);
- glTexCoord2f(0, maxT); glVertex2f(-1, 1);
- glEnd();
-
- rt->DisableTextureTarget();
-
- glPopMatrix();
-
- PrintGLerror("display");
- glutSwapBuffers();
-}
-
-
-
-
-//---------------------------------------------------------------------------
-// Function : main
-// Description :
-//---------------------------------------------------------------------------
-int main(int argc, char *argv[])
-{
- int argn = argc;
- glutInit(&argn, argv);
- glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
- glutInitWindowPosition(50, 50);
- glutInitWindowSize(512, 512);
- glutCreateWindow("TestRenderTexture");
-
- glutDisplayFunc(_Display);
- glutIdleFunc(Idle);
- glutReshapeFunc(Reshape);
- glutKeyboardFunc(Keyboard);
-
- Reshape(512, 512);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- gluLookAt(0, 0, 2, 0, 0, 0, 0, 1, 0);
- glDisable(GL_LIGHTING);
- glEnable(GL_COLOR_MATERIAL);
- glEnable(GL_DEPTH_TEST);
- glClearColor(0.4, 0.6, 0.8, 1);
-
-
- rt = CreateRenderTexture(g_modeTestStrings[g_currentString]);
-
- if (rt->IsInitialized() && rt->BeginCapture()) {
- rt->EndCapture();
- dbg_printf("Torus should also be shown.\n");
- } else {
- dbg_printf("No Torus init = %s\n", (rt->IsInitialized() ? "ok" : "NOT INITIALISED"));
- }
-
- printf("Press Enter to change RenderTexture parameters.\n"
- "Press 'r' to toggle the rectangle's motion.\n"
- "Press 't' to toggle the torus' motion.\n");
-
-
- glutMainLoop();
- return 0;
-}
*
*/
-#include <string.h>
#include "extensions.hxx"
-#include <simgear/debug/logstream.hxx>
-#if !defined(WIN32)
-# include <dlfcn.h>
-#endif
+
+#include <cstring>
+#include <osg/GL> // for glGetString
bool SGSearchExtensionsString(const char *extString, const char *extName) {
// Returns GL_TRUE if the *extName string appears in the *extString string,
return SGSearchExtensionsString((const char *)glGetString(GL_EXTENSIONS),extName);
}
-
-#ifdef __APPLE__
-
-#include <CoreFoundation/CoreFoundation.h>
-
-void* macosxGetGLProcAddress(const char *func) {
-
- /* We may want to cache the bundleRef at some point */
- static CFBundleRef bundle = 0;
-
- if (!bundle) {
-
- CFURLRef bundleURL = CFURLCreateWithFileSystemPath (kCFAllocatorDefault,
- CFSTR("/System/Library/Frameworks/OpenGL.framework"), kCFURLPOSIXPathStyle, true);
-
- bundle = CFBundleCreate (kCFAllocatorDefault, bundleURL);
- CFRelease (bundleURL);
- }
-
- if (!bundle)
- return 0;
-
- CFStringRef functionName = CFStringCreateWithCString
- (kCFAllocatorDefault, func, kCFStringEncodingASCII);
-
- void *function;
-
- function = CFBundleGetFunctionPointerForName (bundle, functionName);
-
- CFRelease (functionName);
-
- return function;
-}
-
-#elif !defined( WIN32 )
-
-void *SGGetGLProcAddress(const char *func) {
- static void *libHandle = NULL;
- static void *(*glXGetProcAddressPtr)(const GLubyte*) = 0;
- void *fptr = NULL;
-
- /*
- * Clear the error buffer
- */
- dlerror();
-
- /*
- * Since libGL must be linked to the binary we run on, this is the
- * right handle. That 'current binary' handle also avoids conflicts which
- * arise from linking with a different libGL at link time an than later
- * use the standard libGL at runtime ...
- */
- if (libHandle == NULL) {
- libHandle = dlopen(NULL, RTLD_LAZY);
-
- if (!libHandle) {
- const char *error = dlerror();
- if (error) {
- SG_LOG(SG_GENERAL, SG_INFO, error);
- return 0;
- }
- }
-
- void* symbol = dlsym(libHandle, "glXGetProcAddress");
- if (!symbol)
- symbol = dlsym(libHandle, "glXGetProcAddressARB");
- glXGetProcAddressPtr = (void *(*)(const GLubyte*)) symbol;
- }
-
- // First try the glx api function for that
- if (glXGetProcAddressPtr) {
- fptr = glXGetProcAddressPtr((const GLubyte*)func);
-
- } else if (libHandle != NULL) {
- fptr = dlsym(libHandle, func);
-
- const char *error = dlerror();
- if (error)
- SG_LOG(SG_GENERAL, SG_INFO, error);
- }
-
- return fptr;
-}
-
-#endif
-
#ifndef __SG_EXTENSIONS_HXX
#define __SG_EXTENSIONS_HXX 1
-#ifdef WIN32
-# include <windows.h>
-#endif
#include <simgear/compiler.h>
-#include <osg/GL>
-
-#if !defined(__APPLE__) && !defined(WIN32)
-# include <GL/glx.h>
-#endif
-
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-#ifndef APIENTRY
-#define APIENTRY
-#endif
-
bool SGSearchExtensionsString(const char *extString, const char *extName);
bool SGIsOpenGLExtensionSupported(const char *extName);
-#ifdef __APPLE__
- // don't use an inline function for symbol lookup, since it is too big
- void* macosxGetGLProcAddress(const char *func);
-
-#elif !defined( WIN32 )
-
- void *SGGetGLProcAddress(const char *func);
-
-#endif
-
-inline void (*SGLookupFunction(const char *func))()
-{
-#if defined( WIN32 )
- return (void (*)()) wglGetProcAddress(func);
-
-#elif defined( __APPLE__ )
- return (void (*)()) macosxGetGLProcAddress(func);
-
-#else // UNIX, default
- return (void (*)()) SGGetGLProcAddress(func);
-#endif
-}
-
-/*
- * OpenGL 1.2 and 1.3 enumerants
- */
-
-#ifndef GL_VERSION_1_2
-#define GL_CLAMP_TO_EDGE 0x812F
-#define GL_TEXTURE_WRAP_R 0x8072
-#define GL_BLEND_EQUATION 0x8009
-#define GL_MIN 0x8007
-#define GL_MAX 0x8008
-#define GL_FUNC_ADD 0x8006
-#define GL_FUNC_SUBTRACT 0x800A
-#define GL_FUNC_REVERSE_SUBTRACT 0x800B
-#define GL_BLEND_COLOR 0x8005
-#define GL_CONSTANT_COLOR 0x8001
-#define GL_ONE_MINUS_CONSTANT_COLOR 0x8002
-#define GL_CONSTANT_ALPHA 0x8003
-#define GL_ONE_MINUS_CONSTANT_ALPHA 0x8004
-#endif
-
-typedef void (APIENTRY * glBlendEquationProc) (GLenum mode );
-typedef void (APIENTRY * glBlendColorProc) (GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha );
-
-
-/* OpenGL extension declarations */
-
-/*
- * glPointParameterf and glPointParameterfv
- */
-#ifndef GL_EXT_point_parameters
-#define GL_EXT_point_parameters 1
-#define GL_POINT_SIZE_MIN_EXT 0x8126
-#define GL_DISTANCE_ATTENUATION_EXT 0x8129
-#endif
-
-#ifndef GL_ARB_point_parameters
-#define GL_ARB_point_parameters 1
-#define GL_POINT_SIZE_MIN_ARB 0x8126
-#define GL_DISTANCE_ATTENUATION_ARB 0x8129
-#endif
-
-typedef void (APIENTRY * glPointParameterfProc)(GLenum pname, GLfloat param);
-typedef void (APIENTRY * glPointParameterfvProc)(GLenum pname, const GLfloat *params);
-
-/*
- * glActiveTextureARB
- */
-
-#ifndef GL_ARB_multitexture
-#define GL_ARB_multitexture 1
-#define GL_TEXTURE0_ARB 0x84C0
-#define GL_TEXTURE1_ARB 0x84C1
-#define GL_TEXTURE2_ARB 0x84C2
-#define GL_TEXTURE3_ARB 0x84C3
-#define GL_TEXTURE4_ARB 0x84C4
-#define GL_TEXTURE5_ARB 0x84C5
-#define GL_TEXTURE6_ARB 0x84C6
-#define GL_TEXTURE7_ARB 0x84C7
-#define GL_TEXTURE8_ARB 0x84C8
-#define GL_TEXTURE9_ARB 0x84C9
-#define GL_TEXTURE10_ARB 0x84CA
-#define GL_TEXTURE11_ARB 0x84CB
-#define GL_TEXTURE12_ARB 0x84CC
-#define GL_TEXTURE13_ARB 0x84CD
-#define GL_TEXTURE14_ARB 0x84CE
-#define GL_TEXTURE15_ARB 0x84CF
-#define GL_TEXTURE16_ARB 0x84D0
-#define GL_TEXTURE17_ARB 0x84D1
-#define GL_TEXTURE18_ARB 0x84D2
-#define GL_TEXTURE19_ARB 0x84D3
-#define GL_TEXTURE20_ARB 0x84D4
-#define GL_TEXTURE21_ARB 0x84D5
-#define GL_TEXTURE22_ARB 0x84D6
-#define GL_TEXTURE23_ARB 0x84D7
-#define GL_TEXTURE24_ARB 0x84D8
-#define GL_TEXTURE25_ARB 0x84D9
-#define GL_TEXTURE26_ARB 0x84DA
-#define GL_TEXTURE27_ARB 0x84DB
-#define GL_TEXTURE28_ARB 0x84DC
-#define GL_TEXTURE29_ARB 0x84DD
-#define GL_TEXTURE30_ARB 0x84DE
-#define GL_TEXTURE31_ARB 0x84DF
-#define GL_ACTIVE_TEXTURE_ARB 0x84E0
-#define GL_CLIENT_ACTIVE_TEXTURE_ARB 0x84E1
-#define GL_MAX_TEXTURE_UNITS_ARB 0x84E2
-#endif
-
-typedef void (APIENTRY * glActiveTextureProc)(GLenum texture);
-typedef void (APIENTRY * glClientActiveTextureProc)(GLenum texture);
-
-/*
- * GL_EXT_separate_specular_color
- */
-
-#ifndef GL_LIGHT_MODEL_COLOR_CONTROL
-#define GL_LIGHT_MODEL_COLOR_CONTROL 0x81F8
-#define GL_SINGLE_COLOR 0x81F9
-#define GL_SEPARATE_SPECULAR_COLOR 0x81FA
-#endif
-
-/*
- * GL_ARB_texture_cube_map
- */
-
-#ifndef GL_ARB_texture_cube_map
-#define GL_ARB_texture_cube_map 1
-#define GL_NORMAL_MAP_ARB 0x8511
-#define GL_REFLECTION_MAP_ARB 0x8512
-#define GL_TEXTURE_CUBE_MAP_ARB 0x8513
-#define GL_TEXTURE_BINDING_CUBE_MAP_ARB 0x8514
-#define GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB 0x8515
-#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB 0x8516
-#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB 0x8517
-#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB 0x8518
-#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB 0x8519
-#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB 0x851A
-#define GL_PROXY_TEXTURE_CUBE_MAP_ARB 0x851B
-#define GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB 0x851C
-#endif
-
-/*
- * GL_ARB_texture_env_combine
- */
-
-#ifndef GL_ARB_texture_env_combine
-#define GL_ARB_texture_env_combine 1
-#define GL_COMBINE_ARB 0x8570
-#define GL_COMBINE_RGB_ARB 0x8571
-#define GL_COMBINE_ALPHA_ARB 0x8572
-#define GL_RGB_SCALE_ARB 0x8573
-#define GL_ADD_SIGNED_ARB 0x8574
-#define GL_INTERPOLATE_ARB 0x8575
-#define GL_SUBTRACT_ARB 0x84E7
-#define GL_CONSTANT_ARB 0x8576
-#define GL_PRIMARY_COLOR_ARB 0x8577
-#define GL_PREVIOUS_ARB 0x8578
-#define GL_SOURCE0_RGB_ARB 0x8580
-#define GL_SOURCE1_RGB_ARB 0x8581
-#define GL_SOURCE2_RGB_ARB 0x8582
-#define GL_SOURCE0_ALPHA_ARB 0x8588
-#define GL_SOURCE1_ALPHA_ARB 0x8589
-#define GL_SOURCE2_ALPHA_ARB 0x858A
-#define GL_OPERAND0_RGB_ARB 0x8590
-#define GL_OPERAND1_RGB_ARB 0x8591
-#define GL_OPERAND2_RGB_ARB 0x8592
-#define GL_OPERAND0_ALPHA_ARB 0x8598
-#define GL_OPERAND1_ALPHA_ARB 0x8599
-#define GL_OPERAND2_ALPHA_ARB 0x859A
-#endif
-
-/*
- * GL_ARB_texture_env_dot3
- */
-
-#ifndef GL_ARB_texture_env_dot3
-#define GL_ARB_texture_env_dot3 1
-#define GL_DOT3_RGB_ARB 0x86AE
-#define GL_DOT3_RGBA_ARB 0x86AF
-#endif
-
-/*
- * ARB_depth_texture
- */
-#ifndef GL_ARB_depth_texture
-#define GL_ARB_depth_texture 1
-#define GL_DEPTH_COMPONENT16_ARB 0x81A5
-#define GL_DEPTH_COMPONENT24_ARB 0x81A6
-#define GL_DEPTH_COMPONENT32_ARB 0x81A7
-#define GL_TEXTURE_DEPTH_SIZE_ARB 0x884A
-#define GL_DEPTH_TEXTURE_MODE_ARB 0x884B
-#endif
-
-/*
- * ARB_multisample
- */
-#ifndef GL_ARB_multisample
-#define GL_ARB_multisample 1
-#define GL_MULTISAMPLE_ARB 0x809D
-#define GL_SAMPLE_ALPHA_TO_COVERAGE_ARB 0x809E
-#define GL_SAMPLE_ALPHA_TO_ONE_ARB 0x809F
-#define GL_SAMPLE_COVERAGE_ARB 0x80A0
-#define GL_SAMPLE_BUFFERS_ARB 0x80A8
-#define GL_SAMPLES_ARB 0x80A9
-#define GL_SAMPLE_COVERAGE_VALUE_ARB 0x80AA
-#define GL_SAMPLE_COVERAGE_INVERT_ARB 0x80AB
-#define GL_MULTISAMPLE_BIT_ARB 0x20000000
-#define GL_DOUBLEBUFFER 0x0C32
-#define GL_AUX_BUFFERS 0x0C00
-#define WGL_SAMPLE_BUFFERS_ARB 0x2041
-#define WGL_SAMPLES_ARB 0x2042
-#endif
-
-#ifndef GL_SGIS_generate_mipmap
-#define GL_SGIS_generate_mipmap 1
-#define GL_GENERATE_MIPMAP_SGIS 0x8191
-#define GL_GENERATE_MIPMAP_HINT_SGIS 0x8192
-#endif
-
-/* WGL spcific OpenGL extenstions */
-#ifdef WIN32
-
-/*
- * WGL_ARB_extensions_string
- */
-#ifndef WGL_ARB_extensions_string
-#define WGL_ARB_extensions_string 1
-typedef const char * (APIENTRY * wglGetExtensionsStringARBProc) (HDC hDC);
-#endif
-
-/*
- * WGL_ARB_pbuffer
- */
-#ifndef WGL_ARB_pbuffer
-#define WGL_ARB_pbuffer 1
-#define WGL_DRAW_TO_PBUFFER_ARB 0x202D
-#define WGL_MAX_PBUFFER_PIXELS_ARB 0x202E
-#define WGL_MAX_PBUFFER_WIDTH_ARB 0x202F
-#define WGL_MAX_PBUFFER_HEIGHT_ARB 0x2030
-#define WGL_PBUFFER_LARGEST_ARB 0x2033
-#define WGL_PBUFFER_WIDTH_ARB 0x2034
-#define WGL_PBUFFER_HEIGHT_ARB 0x2035
-#define WGL_PBUFFER_LOST_ARB 0x2036
-DECLARE_HANDLE(HPBUFFERARB);
-typedef HPBUFFERARB (APIENTRY * wglCreatePbufferARBProc) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int *piAttribList);
-typedef HDC (APIENTRY * wglGetPbufferDCARBProc) (HPBUFFERARB hPbuffer);
-typedef int (APIENTRY * wglReleasePbufferDCARBProc) (HPBUFFERARB hPbuffer, HDC hDC);
-typedef BOOL (APIENTRY * wglDestroyPbufferARBProc) (HPBUFFERARB hPbuffer);
-typedef BOOL (APIENTRY * wglQueryPbufferARBProc) (HPBUFFERARB hPbuffer, int iAttribute, int *piValue);
-#endif
-
-
-/*
- * ARB_pixel_format
- */
-#ifndef WGL_ARB_pixel_format
-#define WGL_ARB_pixel_format 1
-#define WGL_NUMBER_PIXEL_FORMATS_ARB 0x2000
-#define WGL_DRAW_TO_WINDOW_ARB 0x2001
-#define WGL_DRAW_TO_BITMAP_ARB 0x2002
-#define WGL_ACCELERATION_ARB 0x2003
-#define WGL_NEED_PALETTE_ARB 0x2004
-#define WGL_NEED_SYSTEM_PALETTE_ARB 0x2005
-#define WGL_SWAP_LAYER_BUFFERS_ARB 0x2006
-#define WGL_SWAP_METHOD_ARB 0x2007
-#define WGL_NUMBER_OVERLAYS_ARB 0x2008
-#define WGL_NUMBER_UNDERLAYS_ARB 0x2009
-#define WGL_TRANSPARENT_ARB 0x200A
-#define WGL_SHARE_DEPTH_ARB 0x200C
-#define WGL_SHARE_STENCIL_ARB 0x200D
-#define WGL_SHARE_ACCUM_ARB 0x200E
-#define WGL_SUPPORT_GDI_ARB 0x200F
-#define WGL_SUPPORT_OPENGL_ARB 0x2010
-#define WGL_DOUBLE_BUFFER_ARB 0x2011
-#define WGL_STEREO_ARB 0x2012
-#define WGL_PIXEL_TYPE_ARB 0x2013
-#define WGL_COLOR_BITS_ARB 0x2014
-#define WGL_RED_BITS_ARB 0x2015
-#define WGL_RED_SHIFT_ARB 0x2016
-#define WGL_GREEN_BITS_ARB 0x2017
-#define WGL_GREEN_SHIFT_ARB 0x2018
-#define WGL_BLUE_BITS_ARB 0x2019
-#define WGL_BLUE_SHIFT_ARB 0x201A
-#define WGL_ALPHA_BITS_ARB 0x201B
-#define WGL_ALPHA_SHIFT_ARB 0x201C
-#define WGL_ACCUM_BITS_ARB 0x201D
-#define WGL_ACCUM_RED_BITS_ARB 0x201E
-#define WGL_ACCUM_GREEN_BITS_ARB 0x201F
-#define WGL_ACCUM_BLUE_BITS_ARB 0x2020
-#define WGL_ACCUM_ALPHA_BITS_ARB 0x2021
-#define WGL_DEPTH_BITS_ARB 0x2022
-#define WGL_STENCIL_BITS_ARB 0x2023
-#define WGL_AUX_BUFFERS_ARB 0x2024
-#define WGL_NO_ACCELERATION_ARB 0x2025
-#define WGL_GENERIC_ACCELERATION_ARB 0x2026
-#define WGL_FULL_ACCELERATION_ARB 0x2027
-#define WGL_SWAP_EXCHANGE_ARB 0x2028
-#define WGL_SWAP_COPY_ARB 0x2029
-#define WGL_SWAP_UNDEFINED_ARB 0x202A
-#define WGL_TYPE_RGBA_ARB 0x202B
-#define WGL_TYPE_COLORINDEX_ARB 0x202C
-#define WGL_TRANSPARENT_RED_VALUE_ARB 0x2037
-#define WGL_TRANSPARENT_GREEN_VALUE_ARB 0x2038
-#define WGL_TRANSPARENT_BLUE_VALUE_ARB 0x2039
-#define WGL_TRANSPARENT_ALPHA_VALUE_ARB 0x203A
-#define WGL_TRANSPARENT_INDEX_VALUE_ARB 0x203B
-typedef BOOL (APIENTRY * wglGetPixelFormatAttribivARBProc) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, int *piValues);
-typedef BOOL (APIENTRY * wglGetPixelFormatAttribfvARBProc) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, FLOAT *pfValues);
-typedef BOOL (APIENTRY * wglChoosePixelFormatARBProc) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
-#endif
-
-/*
- * ARB_render_texture
- */
-#ifndef WGL_ARB_render_texture
-#define WGL_ARB_render_texture 1
-
-#define WGL_BIND_TO_TEXTURE_RGB_ARB 0x2070
-#define WGL_BIND_TO_TEXTURE_RGBA_ARB 0x2071
-#define WGL_TEXTURE_FORMAT_ARB 0x2072
-#define WGL_TEXTURE_TARGET_ARB 0x2073
-#define WGL_MIPMAP_TEXTURE_ARB 0x2074
-#define WGL_TEXTURE_RGB_ARB 0x2075
-#define WGL_TEXTURE_RGBA_ARB 0x2076
-#define WGL_NO_TEXTURE_ARB 0x2077
-#define WGL_TEXTURE_CUBE_MAP_ARB 0x2078
-#define WGL_TEXTURE_1D_ARB 0x2079
-#define WGL_TEXTURE_2D_ARB 0x207A
-#define WGL_NO_TEXTURE_ARB 0x2077
-#define WGL_MIPMAP_LEVEL_ARB 0x207B
-#define WGL_CUBE_MAP_FACE_ARB 0x207C
-#define WGL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB 0x207D
-#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB 0x207E
-#define WGL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB 0x207F
-#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB 0x2080
-#define WGL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB 0x2081
-#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB 0x2082
-#define WGL_FRONT_LEFT_ARB 0x2083
-#define WGL_FRONT_RIGHT_ARB 0x2084
-#define WGL_BACK_LEFT_ARB 0x2085
-#define WGL_BACK_RIGHT_ARB 0x2086
-#define WGL_AUX0_ARB 0x2087
-#define WGL_AUX1_ARB 0x2088
-#define WGL_AUX2_ARB 0x2089
-#define WGL_AUX3_ARB 0x208A
-#define WGL_AUX4_ARB 0x208B
-#define WGL_AUX5_ARB 0x208C
-#define WGL_AUX6_ARB 0x208D
-#define WGL_AUX7_ARB 0x208E
-#define WGL_AUX8_ARB 0x208F
-#define WGL_AUX9_ARB 0x2090
-typedef BOOL (APIENTRY * wglBindTexImageARBProc) (HPBUFFERARB hPbuffer, int iBuffer);
-typedef BOOL (APIENTRY * wglReleaseTexImageARBProc) (HPBUFFERARB hPbuffer, int iBuffer);
-typedef BOOL (APIENTRY * wglSetPbufferAttribARBProc) (HPBUFFERARB hPbuffer, const int *piAttribList);
-#endif
-
-#elif !defined(__APPLE__) /* !WIN32 */
-
-/* GLX pcific OpenGL extenstions */
-#include <GL/glx.h>
-
-#ifndef GLX_ARB_multisample
-#define GLX_ARB_multisample1
-#define GLX_SAMPLE_BUFFERS_ARB 100001
-#define GLX_SAMPLES_ARB 100000
-#endif
-
-#ifndef GLX_SGIX_pbuffer
-#define GLX_SGIX_pbuffer 1
-#define GLX_DOUBLEBUFFER 5
-#define GLX_AUX_BUFFERS 0x00000010
-#endif
-
-#ifndef GLXPbuffer
-# ifdef GLXPbufferSGIX
-# define GLXPbuffer GLXPbufferSGIX
-# endif
-#endif
-#ifndef GLXFBConfig
-# ifdef GLXFBConfigSGIX
-# define GLXFBConfig GLXFBConfigSGIX
-# endif
-#endif
-
-typedef GLXFBConfig *(*glXChooseFBConfigProc) (Display *dpy, int screen, int *attribList, int *nitems);
-typedef GLXPbuffer (*glXCreateGLXPbufferProc) (Display *dpy, GLXFBConfig config, unsigned int width, unsigned int height, int *attrib_list);
-typedef GLXPbuffer (*glXCreatePbufferProc) (Display *dpy, GLXFBConfig config, int *attrib_list);
-typedef XVisualInfo *(*glXGetVisualFromFBConfigProc) (Display *dpy, GLXFBConfig config);
-typedef GLXContext (*glXCreateContextWithConfigProc) (Display *dpy, GLXFBConfig config, int render_type, GLXContext share_list, Bool direct);
-typedef GLXContext (*glXCreateContextProc) (Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
-typedef void (*glXDestroyPbufferProc) (Display *dpy, GLXPbuffer pbuf);
-typedef int (*glXQueryGLXPbufferSGIXProc) (Display *, GLXPbuffer, int, unsigned int *);
-typedef void (*glXQueryDrawableProc) (Display *, GLXDrawable, int, unsigned int *);
-#endif /* WIN32 */
-
-
-/* NVIDIA specific extension */
-
-/*
- * NV_texture_rectangle
- */
-
-#ifndef GL_NV_texture_rectangle
-#define GL_NV_texture_rectangle 1
-#define GL_TEXTURE_RECTANGLE_NV 0x84F5
-#define GL_TEXTURE_BINDING_RECTANGLE_NV 0x84F6
-#define GL_PROXY_TEXTURE_RECTANGLE_NV 0x84F7
-#define GL_MAX_RECTANGLE_TEXTURE_SIZE_NV 0x84F8
-#endif
-
-/*
- * NV_texture_rectangle
- */
-
-#ifndef GL_EXT_texture_rectangle
-#define GL_EXT_texture_rectangle 1
-#define GL_TEXTURE_RECTANGLE_EXT 0x84F5
-#define GL_TEXTURE_BINDING_RECTANGLE_EXT 0x84F6
-#define GL_PROXY_TEXTURE_RECTANGLE_EXT 0x84F7
-#define GL_MAX_RECTANGLE_TEXTURE_SIZE_EXT 0x84F8
-#endif
-
-/*
- * WGL_NV_texture_rectangle
- */
-
-#ifndef WGL_NV_texture_rectangle
-#define WGL_NV_texture_rectangle 1
-#define WGL_BIND_TO_TEXTURE_RECTANGLE_RGB_NV 0x20A0
-#define WGL_BIND_TO_TEXTURE_RECTANGLE_RGBA_NV 0x20A1
-#define WGL_TEXTURE_RECTANGLE_NV 0x20A2
-#endif
-
-/*
- * NV_render_depth_texture
- */
-
-#ifndef WGL_NV_render_depth_texture
-#define WGL_NV_render_depth_texture 1
-#define WGL_NO_TEXTURE_ARB 0x2077
-#define WGL_BIND_TO_TEXTURE_DEPTH_NV 0x20A3
-#define WGL_BIND_TO_TEXTURE_RECTANGLE_DEPTH_NV 0x20A4
-#define WGL_DEPTH_TEXTURE_FORMAT_NV 0x20A5
-#define WGL_TEXTURE_DEPTH_COMPONENT_NV 0x20A6
-#define WGL_DEPTH_COMPONENT_NV 0x20A7
-#endif
-
-/*
- * NV_float_buffer
- */
-#ifndef GL_NV_float_buffer
-#define GL_NV_float_buffer 1
-#define GL_FLOAT_R_NV 0x8880
-#define GL_FLOAT_RG_NV 0x8881
-#define GL_FLOAT_RGB_NV 0x8882
-#define GL_FLOAT_RGBA_NV 0x8883
-#define GL_FLOAT_R16_NV 0x8884
-#define GL_FLOAT_R32_NV 0x8885
-#define GL_FLOAT_RG16_NV 0x8886
-#define GL_FLOAT_RG32_NV 0x8887
-#define GL_FLOAT_RGB16_NV 0x8888
-#define GL_FLOAT_RGB32_NV 0x8889
-#define GL_FLOAT_RGBA16_NV 0x888A
-#define GL_FLOAT_RGBA32_NV 0x888B
-#define GL_TEXTURE_FLOAT_COMPONENTS_NV 0x888C
-#define GL_FLOAT_CLEAR_COLOR_VALUE_NV 0x888D
-#define GL_FLOAT_RGBA_MODE_NV 0x888E
-#endif
-#ifndef GLX_NV_float_buffer
-#define GLX_NV_float_buffer 1
-#define GLX_FLOAT_COMPONENTS_NV 0x20B0
-#define GLX_BIND_TO_TEXTURE_RECTANGLE_FLOAT_R_NV 0x20B1
-#define GLX_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RG_NV 0x20B2
-#define GLX_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGB_NV 0x20B3
-#define GLX_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGBA_NV 0x20B4
-#define GLX_TEXTURE_FLOAT_R_NV 0x20B5
-#define GLX_TEXTURE_FLOAT_RG_NV 0x20B6
-#define GLX_TEXTURE_FLOAT_RGB_NV 0x20B7
-#define GLX_TEXTURE_FLOAT_RGBA_NV 0x20B8
-#endif
-#ifndef WGL_NV_float_buffer
-#define WGL_NV_float_buffer 1
-#define WGL_FLOAT_COMPONENTS_NV 0x20B0
-#define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_R_NV 0x20B1
-#define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RG_NV 0x20B2
-#define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGB_NV 0x20B3
-#define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGBA_NV 0x20B4
-#define WGL_TEXTURE_FLOAT_R_NV 0x20B5
-#define WGL_TEXTURE_FLOAT_RG_NV 0x20B6
-#define WGL_TEXTURE_FLOAT_RGB_NV 0x20B7
-#define WGL_TEXTURE_FLOAT_RGBA_NV 0x20B8
-#endif
-
-
-/* ATI specific extension */
-
-/*
- * ATI_pixel_format_float
- */
-#ifndef WGL_ATI_pixel_format_float
-#define WGL_ATI_pixel_format_float 1
-#define WGL_TYPE_RGBA_FLOAT_ATI 0x21A0
-#define GL_RGBA_FLOAT_MODE_ATI 0x8820
-#define GL_COLOR_CLEAR_UNCLAMPED_VALUE_ATI 0x8835
-#endif
-
-/*
- * ATI_texture_float
- */
-#ifndef GL_ATI_texture_float
-#define GL_ATI_texture_float 1
-#define GL_RGBA_FLOAT32_ATI 0x8814
-#define GL_RGB_FLOAT32_ATI 0x8815
-#define GL_ALPHA_FLOAT32_ATI 0x8816
-#define GL_INTENSITY_FLOAT32_ATI 0x8817
-#define GL_LUMINANCE_FLOAT32_ATI 0x8818
-#define GL_LUMINANCE_ALPHA_FLOAT32_ATI 0x8819
-#define GL_RGBA_FLOAT16_ATI 0x881A
-#define GL_RGB_FLOAT16_ATI 0x881B
-#define GL_ALPHA_FLOAT16_ATI 0x881C
-#define GL_INTENSITY_FLOAT16_ATI 0x881D
-#define GL_LUMINANCE_FLOAT16_ATI 0x881E
-#define GL_LUMINANCE_ALPHA_FLOAT16_ATI 0x881F
-#endif
-
-/*
- * ARB point sprite
- */
-#ifndef GL_ARB_point_sprite
-#define GL_ARB_point_sprite 1
-#define GL_POINT_SPRITE_ARB 0x8861
-#define GL_COORD_REPLACE_ARB 0x8862
-#endif
-
-#ifndef GL_NV_point_sprite
-#define GL_NV_point_sprite 1
-#define GL_POINT_SPRITE_NV 0x8861
-#define GL_COORD_REPLACE_NV 0x8862
-#define GL_POINT_SPRITE_R_MODE_NV 0x8863
-#endif
-
-#ifndef GL_VERSION_2_0
-#define GL_POINT_SPRITE 0x8861
-#define GL_COORD_REPLACE 0x8862
-#endif
-
-/*
- * ARB_vertex_program
- */
-#ifndef GL_ARB_vertex_program
-#define GL_ARB_vertex_program 1
-#define GL_COLOR_SUM_ARB 0x8458
-#define GL_VERTEX_PROGRAM_ARB 0x8620
-#define GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB 0x8622
-#define GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB 0x8623
-#define GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB 0x8624
-#define GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB 0x8625
-#define GL_CURRENT_VERTEX_ATTRIB_ARB 0x8626
-#define GL_PROGRAM_LENGTH_ARB 0x8627
-#define GL_PROGRAM_STRING_ARB 0x8628
-#define GL_MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB 0x862E
-#define GL_MAX_PROGRAM_MATRICES_ARB 0x862F
-#define GL_CURRENT_MATRIX_STACK_DEPTH_ARB 0x8640
-#define GL_CURRENT_MATRIX_ARB 0x8641
-#define GL_VERTEX_PROGRAM_POINT_SIZE_ARB 0x8642
-#define GL_VERTEX_PROGRAM_TWO_SIDE_ARB 0x8643
-#define GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB 0x8645
-#define GL_PROGRAM_ERROR_POSITION_ARB 0x864B
-#define GL_PROGRAM_BINDING_ARB 0x8677
-#define GL_MAX_VERTEX_ATTRIBS_ARB 0x8869
-#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB 0x886A
-#define GL_PROGRAM_ERROR_STRING_ARB 0x8874
-#define GL_PROGRAM_FORMAT_ASCII_ARB 0x8875
-#define GL_PROGRAM_FORMAT_ARB 0x8876
-#define GL_PROGRAM_INSTRUCTIONS_ARB 0x88A0
-#define GL_MAX_PROGRAM_INSTRUCTIONS_ARB 0x88A1
-#define GL_PROGRAM_NATIVE_INSTRUCTIONS_ARB 0x88A2
-#define GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB 0x88A3
-#define GL_PROGRAM_TEMPORARIES_ARB 0x88A4
-#define GL_MAX_PROGRAM_TEMPORARIES_ARB 0x88A5
-#define GL_PROGRAM_NATIVE_TEMPORARIES_ARB 0x88A6
-#define GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB 0x88A7
-#define GL_PROGRAM_PARAMETERS_ARB 0x88A8
-#define GL_MAX_PROGRAM_PARAMETERS_ARB 0x88A9
-#define GL_PROGRAM_NATIVE_PARAMETERS_ARB 0x88AA
-#define GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB 0x88AB
-#define GL_PROGRAM_ATTRIBS_ARB 0x88AC
-#define GL_MAX_PROGRAM_ATTRIBS_ARB 0x88AD
-#define GL_PROGRAM_NATIVE_ATTRIBS_ARB 0x88AE
-#define GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB 0x88AF
-#define GL_PROGRAM_ADDRESS_REGISTERS_ARB 0x88B0
-#define GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB 0x88B1
-#define GL_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB 0x88B2
-#define GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB 0x88B3
-#define GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB 0x88B4
-#define GL_MAX_PROGRAM_ENV_PARAMETERS_ARB 0x88B5
-#define GL_PROGRAM_UNDER_NATIVE_LIMITS_ARB 0x88B6
-#define GL_TRANSPOSE_CURRENT_MATRIX_ARB 0x88B7
-#define GL_MATRIX0_ARB 0x88C0
-#define GL_MATRIX1_ARB 0x88C1
-#define GL_MATRIX2_ARB 0x88C2
-#define GL_MATRIX3_ARB 0x88C3
-#define GL_MATRIX4_ARB 0x88C4
-#define GL_MATRIX5_ARB 0x88C5
-#define GL_MATRIX6_ARB 0x88C6
-#define GL_MATRIX7_ARB 0x88C7
-#define GL_MATRIX8_ARB 0x88C8
-#define GL_MATRIX9_ARB 0x88C9
-#define GL_MATRIX10_ARB 0x88CA
-#define GL_MATRIX11_ARB 0x88CB
-#define GL_MATRIX12_ARB 0x88CC
-#define GL_MATRIX13_ARB 0x88CD
-#define GL_MATRIX14_ARB 0x88CE
-#define GL_MATRIX15_ARB 0x88CF
-#define GL_MATRIX16_ARB 0x88D0
-#define GL_MATRIX17_ARB 0x88D1
-#define GL_MATRIX18_ARB 0x88D2
-#define GL_MATRIX19_ARB 0x88D3
-#define GL_MATRIX20_ARB 0x88D4
-#define GL_MATRIX21_ARB 0x88D5
-#define GL_MATRIX22_ARB 0x88D6
-#define GL_MATRIX23_ARB 0x88D7
-#define GL_MATRIX24_ARB 0x88D8
-#define GL_MATRIX25_ARB 0x88D9
-#define GL_MATRIX26_ARB 0x88DA
-#define GL_MATRIX27_ARB 0x88DB
-#define GL_MATRIX28_ARB 0x88DC
-#define GL_MATRIX29_ARB 0x88DD
-#define GL_MATRIX30_ARB 0x88DE
-#define GL_MATRIX31_ARB 0x88DF
-#endif
-
-/*
- * ARB_fragment_program
- */
-#ifndef GL_ARB_fragment_program
-#define GL_ARB_fragment_program 1
-#define GL_FRAGMENT_PROGRAM_ARB 0x8804
-#define GL_PROGRAM_ALU_INSTRUCTIONS_ARB 0x8805
-#define GL_PROGRAM_TEX_INSTRUCTIONS_ARB 0x8806
-#define GL_PROGRAM_TEX_INDIRECTIONS_ARB 0x8807
-#define GL_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB 0x8808
-#define GL_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB 0x8809
-#define GL_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB 0x880A
-#define GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB 0x880B
-#define GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB 0x880C
-#define GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB 0x880D
-#define GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB 0x880E
-#define GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB 0x880F
-#define GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB 0x8810
-#define GL_MAX_TEXTURE_COORDS_ARB 0x8871
-#define GL_MAX_TEXTURE_IMAGE_UNITS_ARB 0x8872
-#endif
-
-typedef void (APIENTRY * glVertexAttrib1dProc) (GLuint index, GLdouble x);
-typedef void (APIENTRY * glVertexAttrib1dvProc) (GLuint index, const GLdouble *v);
-typedef void (APIENTRY * glVertexAttrib1fProc) (GLuint index, GLfloat x);
-typedef void (APIENTRY * glVertexAttrib1fvProc) (GLuint index, const GLfloat *v);
-typedef void (APIENTRY * glVertexAttrib1sProc) (GLuint index, GLshort x);
-typedef void (APIENTRY * glVertexAttrib1svProc) (GLuint index, const GLshort *v);
-typedef void (APIENTRY * glVertexAttrib2dProc) (GLuint index, GLdouble x, GLdouble y);
-typedef void (APIENTRY * glVertexAttrib2dvProc) (GLuint index, const GLdouble *v);
-typedef void (APIENTRY * glVertexAttrib2fProc) (GLuint index, GLfloat x, GLfloat y);
-typedef void (APIENTRY * glVertexAttrib2fvProc) (GLuint index, const GLfloat *v);
-typedef void (APIENTRY * glVertexAttrib2sProc) (GLuint index, GLshort x, GLshort y);
-typedef void (APIENTRY * glVertexAttrib2svProc) (GLuint index, const GLshort *v);
-typedef void (APIENTRY * glVertexAttrib3dProc) (GLuint index, GLdouble x, GLdouble y, GLdouble z);
-typedef void (APIENTRY * glVertexAttrib3dvProc) (GLuint index, const GLdouble *v);
-typedef void (APIENTRY * glVertexAttrib3fProc) (GLuint index, GLfloat x, GLfloat y, GLfloat z);
-typedef void (APIENTRY * glVertexAttrib3fvProc) (GLuint index, const GLfloat *v);
-typedef void (APIENTRY * glVertexAttrib3sProc) (GLuint index, GLshort x, GLshort y, GLshort z);
-typedef void (APIENTRY * glVertexAttrib3svProc) (GLuint index, const GLshort *v);
-typedef void (APIENTRY * glVertexAttrib4NbvProc) (GLuint index, const GLbyte *v);
-typedef void (APIENTRY * glVertexAttrib4NivProc) (GLuint index, const GLint *v);
-typedef void (APIENTRY * glVertexAttrib4NsvProc) (GLuint index, const GLshort *v);
-typedef void (APIENTRY * glVertexAttrib4NubProc) (GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
-typedef void (APIENTRY * glVertexAttrib4NubvProc) (GLuint index, const GLubyte *v);
-typedef void (APIENTRY * glVertexAttrib4NuivProc) (GLuint index, const GLuint *v);
-typedef void (APIENTRY * glVertexAttrib4NusvProc) (GLuint index, const GLushort *v);
-typedef void (APIENTRY * glVertexAttrib4bvProc) (GLuint index, const GLbyte *v);
-typedef void (APIENTRY * glVertexAttrib4dProc) (GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
-typedef void (APIENTRY * glVertexAttrib4dvProc) (GLuint index, const GLdouble *v);
-typedef void (APIENTRY * glVertexAttrib4fProc) (GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
-typedef void (APIENTRY * glVertexAttrib4fvProc) (GLuint index, const GLfloat *v);
-typedef void (APIENTRY * glVertexAttrib4ivProc) (GLuint index, const GLint *v);
-typedef void (APIENTRY * glVertexAttrib4sProc) (GLuint index, GLshort x, GLshort y, GLshort z, GLshort w);
-typedef void (APIENTRY * glVertexAttrib4svProc) (GLuint index, const GLshort *v);
-typedef void (APIENTRY * glVertexAttrib4ubvProc) (GLuint index, const GLubyte *v);
-typedef void (APIENTRY * glVertexAttrib4uivProc) (GLuint index, const GLuint *v);
-typedef void (APIENTRY * glVertexAttrib4usvProc) (GLuint index, const GLushort *v);
-typedef void (APIENTRY * glVertexAttribPointerProc) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
-typedef void (APIENTRY * glEnableVertexAttribArrayProc) (GLuint index);
-typedef void (APIENTRY * glDisableVertexAttribArrayProc) (GLuint index);
-typedef void (APIENTRY * glProgramStringProc) (GLenum target, GLenum format, GLsizei len, const GLvoid *string);
-typedef void (APIENTRY * glBindProgramProc) (GLenum target, GLuint program);
-typedef void (APIENTRY * glDeleteProgramsProc) (GLsizei n, const GLuint *programs);
-typedef void (APIENTRY * glGenProgramsProc) (GLsizei n, GLuint *programs);
-typedef void (APIENTRY * glProgramEnvParameter4dProc) (GLenum target, GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
-typedef void (APIENTRY * glProgramEnvParameter4dvProc) (GLenum target, GLuint index, const GLdouble *params);
-typedef void (APIENTRY * glProgramEnvParameter4fProc) (GLenum target, GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
-typedef void (APIENTRY * glProgramEnvParameter4fvProc) (GLenum target, GLuint index, const GLfloat *params);
-typedef void (APIENTRY * glProgramLocalParameter4dProc) (GLenum target, GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
-typedef void (APIENTRY * glProgramLocalParameter4dvProc) (GLenum target, GLuint index, const GLdouble *params);
-typedef void (APIENTRY * glProgramLocalParameter4fProc) (GLenum target, GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
-typedef void (APIENTRY * glProgramLocalParameter4fvProc) (GLenum target, GLuint index, const GLfloat *params);
-typedef void (APIENTRY * glGetProgramEnvParameterdvProc) (GLenum target, GLuint index, GLdouble *params);
-typedef void (APIENTRY * glGetProgramEnvParameterfvProc) (GLenum target, GLuint index, GLfloat *params);
-typedef void (APIENTRY * glGetProgramLocalParameterdvProc) (GLenum target, GLuint index, GLdouble *params);
-typedef void (APIENTRY * glGetProgramLocalParameterfvProc) (GLenum target, GLuint index, GLfloat *params);
-typedef void (APIENTRY * glGetProgramivProc) (GLenum target, GLenum pname, GLint *params);
-typedef void (APIENTRY * glGetProgramStringProc) (GLenum target, GLenum pname, GLvoid *string);
-typedef void (APIENTRY * glGetVertexAttribdvProc) (GLuint index, GLenum pname, GLdouble *params);
-typedef void (APIENTRY * glGetVertexAttribfvProc) (GLuint index, GLenum pname, GLfloat *params);
-typedef void (APIENTRY * glGetVertexAttribivProc) (GLuint index, GLenum pname, GLint *params);
-typedef void (APIENTRY * glGetVertexAttribPointervProc) (GLuint index, GLenum pname, GLvoid* *pointer);
-typedef GLboolean (APIENTRY * glIsProgramProc) (GLuint program);
-
-/*
- * EXT_framebuffer_objects
- */
-#ifndef GL_EXT_framebuffer_object
-#define GL_EXT_framebuffer_object 1
-#define GL_NONE_EXT 0
-#define GL_FRAMEBUFFER_EXT 0x8D40
-#define GL_RENDERBUFFER_EXT 0x8D41
-#define GL_RGBA4_EXT 0x8056
-#define GL_RGB5_A1_EXT 0x8057
-#define GL_RGB565_EXT 0x8D62
-#define GL_DEPTH_COMPONENT16_EXT 0x81A5
-#define GL_RENDERBUFFER_WIDTH_EXT 0x8D42
-#define GL_RENDERBUFFER_HEIGHT_EXT 0x8D43
-#define GL_RENDERBUFFER_INTERNAL_FORMAT_EXT 0x8D44
-#define GL_RENDERBUFFER_RED_SIZE_EXT 0x8D50
-#define GL_RENDERBUFFER_GREEN_SIZE_EXT 0x8D51
-#define GL_RENDERBUFFER_BLUE_SIZE_EXT 0x8D52
-#define GL_RENDERBUFFER_ALPHA_SIZE_EXT 0x8D53
-#define GL_RENDERBUFFER_DEPTH_SIZE_EXT 0x8D54
-#define GL_RENDERBUFFER_STENCIL_SIZE_EXT 0x8D55
-#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT 0x8CD0
-#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT 0x8CD1
-#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT 0x8CD2
-#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT 0x8CD3
-#define GL_COLOR_ATTACHMENT0_EXT 0x8CE0
-#define GL_DEPTH_ATTACHMENT_EXT 0x8D00
-#define GL_STENCIL_ATTACHMENT_EXT 0x8D20
-#define GL_FRAMEBUFFER_COMPLETE_EXT 0x8CD5
-#define GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT 0x8CD6
-#define GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT 0x8CD7
-#define GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT 0x8CD9
-#define GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT 0x8CDA
-#define GL_FRAMEBUFFER_UNSUPPORTED_EXT 0x8CDD
-#define GL_FRAMEBUFFER_BINDING_EXT 0x8CA6
-#define GL_RENDERBUFFER_BINDING_EXT 0x8CA7
-#define GL_MAX_RENDERBUFFER_SIZE_EXT 0x84E8
-#define GL_INVALID_FRAMEBUFFER_OPERATION_EXT 0x0506
-#endif
-
-typedef GLboolean (APIENTRY * glIsRenderbufferProc) (GLuint renderbuffer);
-typedef void (APIENTRY * glBindRenderbufferProc) (GLenum target, GLuint renderbuffer);
-typedef void (APIENTRY * glDeleteRenderbuffersProc) (GLsizei n, const GLuint* renderbuffers);
-typedef void (APIENTRY * glGenRenderbuffersProc) (GLsizei n, GLuint* renderbuffers);
-typedef void (APIENTRY * glRenderbufferStorageProc) (GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
-typedef void (APIENTRY * glGetRenderbufferParameterivProc) (GLenum target, GLenum pname, GLint* params);
-typedef GLboolean (APIENTRY * glIsFramebufferProc) (GLuint framebuffer);
-typedef void (APIENTRY * glBindFramebufferProc) (GLenum target, GLuint framebuffer);
-typedef void (APIENTRY * glDeleteFramebuffersProc) (GLsizei n, const GLuint* framebuffers);
-typedef void (APIENTRY * glGenFramebuffersProc) (GLsizei n, GLuint* framebuffers);
-typedef GLenum (APIENTRY * glCheckFramebufferStatusProc) (GLenum target);
-typedef void (APIENTRY * glFramebufferRenderbufferProc) (GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
-typedef void (APIENTRY * glFramebufferTexture2DProc) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
-typedef void (APIENTRY * glGetFramebufferAttachmentParameterivProc) (GLenum target, GLenum attachment, GLenum pname, GLint* params);
-typedef void (APIENTRY * glGenerateMipmapProc) (GLenum target);
-
-/*
- * ARB_shader_objects
- */
-#ifndef GL_ARB_shader_objects
-#define GL_ARB_shader_objects 1
-/* GL types for handling shader object handles and program/shader text */
-typedef char GLcharARB; /* native character */
-typedef unsigned int GLhandleARB; /* shader object handle */
-
-#define GL_PROGRAM_OBJECT_ARB 0x8B40
-#define GL_SHADER_OBJECT_ARB 0x8B48
-#define GL_OBJECT_TYPE_ARB 0x8B4E
-#define GL_OBJECT_SUBTYPE_ARB 0x8B4F
-#define GL_FLOAT_VEC2_ARB 0x8B50
-#define GL_FLOAT_VEC3_ARB 0x8B51
-#define GL_FLOAT_VEC4_ARB 0x8B52
-#define GL_INT_VEC2_ARB 0x8B53
-#define GL_INT_VEC3_ARB 0x8B54
-#define GL_INT_VEC4_ARB 0x8B55
-#define GL_BOOL_ARB 0x8B56
-#define GL_BOOL_VEC2_ARB 0x8B57
-#define GL_BOOL_VEC3_ARB 0x8B58
-#define GL_BOOL_VEC4_ARB 0x8B59
-#define GL_FLOAT_MAT2_ARB 0x8B5A
-#define GL_FLOAT_MAT3_ARB 0x8B5B
-#define GL_FLOAT_MAT4_ARB 0x8B5C
-#define GL_SAMPLER_1D_ARB 0x8B5D
-#define GL_SAMPLER_2D_ARB 0x8B5E
-#define GL_SAMPLER_3D_ARB 0x8B5F
-#define GL_SAMPLER_CUBE_ARB 0x8B60
-#define GL_SAMPLER_1D_SHADOW_ARB 0x8B61
-#define GL_SAMPLER_2D_SHADOW_ARB 0x8B62
-#define GL_SAMPLER_2D_RECT_ARB 0x8B63
-#define GL_SAMPLER_2D_RECT_SHADOW_ARB 0x8B64
-#define GL_OBJECT_DELETE_STATUS_ARB 0x8B80
-#define GL_OBJECT_COMPILE_STATUS_ARB 0x8B81
-#define GL_OBJECT_LINK_STATUS_ARB 0x8B82
-#define GL_OBJECT_VALIDATE_STATUS_ARB 0x8B83
-#define GL_OBJECT_INFO_LOG_LENGTH_ARB 0x8B84
-#define GL_OBJECT_ATTACHED_OBJECTS_ARB 0x8B85
-#define GL_OBJECT_ACTIVE_UNIFORMS_ARB 0x8B86
-#define GL_OBJECT_ACTIVE_UNIFORM_MAX_LENGTH_ARB 0x8B87
-#define GL_OBJECT_SHADER_SOURCE_LENGTH_ARB 0x8B88
-#endif
-
-typedef void (APIENTRY * glDeleteObjectProc) (GLhandleARB obj);
-typedef GLhandleARB (APIENTRY * glGetHandleProc) (GLenum pname);
-typedef void (APIENTRY * glDetachObjectProc) (GLhandleARB containerObj, GLhandleARB attachedObj);
-typedef GLhandleARB (APIENTRY * glCreateShaderObjectProc) (GLenum shaderType);
-typedef void (APIENTRY * glShaderSourceProc) (GLhandleARB shaderObj, GLsizei count, const GLcharARB* *string, const GLint *length);
-typedef void (APIENTRY * glCompileShaderProc) (GLhandleARB shaderObj);
-typedef GLhandleARB (APIENTRY * glCreateProgramObjectProc) (void);
-typedef void (APIENTRY * glAttachObjectProc) (GLhandleARB containerObj, GLhandleARB obj);
-typedef void (APIENTRY * glLinkProgramProc) (GLhandleARB programObj);
-typedef void (APIENTRY * glUseProgramObjectProc) (GLhandleARB programObj);
-typedef void (APIENTRY * glValidateProgramProc) (GLhandleARB programObj);
-typedef void (APIENTRY * glUniform1fProc) (GLint location, GLfloat v0);
-typedef void (APIENTRY * glUniform2fProc) (GLint location, GLfloat v0, GLfloat v1);
-typedef void (APIENTRY * glUniform3fProc) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
-typedef void (APIENTRY * glUniform4fProc) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
-typedef void (APIENTRY * glUniform1iProc) (GLint location, GLint v0);
-typedef void (APIENTRY * glUniform2iProc) (GLint location, GLint v0, GLint v1);
-typedef void (APIENTRY * glUniform3iProc) (GLint location, GLint v0, GLint v1, GLint v2);
-typedef void (APIENTRY * glUniform4iProc) (GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
-typedef void (APIENTRY * glUniform1fvProc) (GLint location, GLsizei count, const GLfloat *value);
-typedef void (APIENTRY * glUniform2fvProc) (GLint location, GLsizei count, const GLfloat *value);
-typedef void (APIENTRY * glUniform3fvProc) (GLint location, GLsizei count, const GLfloat *value);
-typedef void (APIENTRY * glUniform4fvProc) (GLint location, GLsizei count, const GLfloat *value);
-typedef void (APIENTRY * glUniform1ivProc) (GLint location, GLsizei count, const GLint *value);
-typedef void (APIENTRY * glUniform2ivProc) (GLint location, GLsizei count, const GLint *value);
-typedef void (APIENTRY * glUniform3ivProc) (GLint location, GLsizei count, const GLint *value);
-typedef void (APIENTRY * glUniform4ivProc) (GLint location, GLsizei count, const GLint *value);
-typedef void (APIENTRY * glUniformMatrix2fvProc) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
-typedef void (APIENTRY * glUniformMatrix3fvProc) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
-typedef void (APIENTRY * glUniformMatrix4fvProc) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
-typedef void (APIENTRY * glGetObjectParameterfvProc) (GLhandleARB obj, GLenum pname, GLfloat *params);
-typedef void (APIENTRY * glGetObjectParameterivProc) (GLhandleARB obj, GLenum pname, GLint *params);
-typedef void (APIENTRY * glGetInfoLogProc) (GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
-typedef void (APIENTRY * glGetAttachedObjectsProc) (GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
-typedef GLint (APIENTRY * glGetUniformLocationProc) (GLhandleARB programObj, const GLcharARB *name);
-typedef void (APIENTRY * glGetActiveUniformProc) (GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
-typedef void (APIENTRY * glGetUniformfvProc) (GLhandleARB programObj, GLint location, GLfloat *params);
-typedef void (APIENTRY * glGetUniformivProc) (GLhandleARB programObj, GLint location, GLint *params);
-typedef void (APIENTRY * glGetShaderSourceProc) (GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
-
-/*
- * ARB_vertex_shader
- */
-#ifndef GL_ARB_vertex_shader
-#define GL_ARB_vertex_shader 1
-#define GL_VERTEX_SHADER_ARB 0x8B31
-#define GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB 0x8B4A
-#define GL_MAX_VARYING_FLOATS_ARB 0x8B4B
-#define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB 0x8B4C
-#define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB 0x8B4D
-#define GL_OBJECT_ACTIVE_ATTRIBUTES_ARB 0x8B89
-#define GL_OBJECT_ACTIVE_ATTRIBUTE_MAX_LENGTH_ARB 0x8B8A
-#endif
-
-typedef void (APIENTRY * glBindAttribLocationProc) (GLhandleARB programObj, GLuint index, const GLcharARB *name);
-typedef void (APIENTRY * glGetActiveAttribProc) (GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
-typedef GLint (APIENTRY * glGetAttribLocationProc) (GLhandleARB programObj, const GLcharARB *name);
-
-/*
- * ARB_fragment_shader
- */
-#ifndef GL_ARB_fragment_shader
-#define GL_ARB_fragment_shader1
-#define GL_FRAGMENT_SHADER_ARB 0x8B30
-#define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB 0x8B49
-#define GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB 0x8B8B
-#endif
-
-/*
- * NV_fragment_program
- */
-#ifndef GL_NV_fragment_program
-#define GL_NV_fragment_program 1
-#define GL_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMETERS_NV 0x8868
-#define GL_FRAGMENT_PROGRAM_NV 0x8870
-#define GL_MAX_TEXTURE_COORDS_NV 0x8871
-#define GL_MAX_TEXTURE_IMAGE_UNITS_NV 0x8872
-#define GL_FRAGMENT_PROGRAM_BINDING_NV 0x8873
-#define GL_PROGRAM_ERROR_STRING_NV 0x8874
-#endif
-#ifndef GL_NV_vertex_program
-#define GL_NV_vertex_program 1
-#define GL_VERTEX_PROGRAM_NV 0x8620
-#define GL_PROGRAM_ERROR_POSITION_NV 0x864B
-#endif
-
-typedef void (APIENTRY * glBindProgramNVProc) (GLenum target, GLuint id);
-typedef void (APIENTRY * glDeleteProgramsNVProc) (GLsizei n, const GLuint *programs);
-typedef void (APIENTRY * glGenProgramsNVProc) (GLsizei n, GLuint *programs);
-typedef void (APIENTRY * glLoadProgramNVProc) (GLenum target, GLuint id, GLsizei len, const GLubyte *program);
-typedef void (APIENTRY * glProgramParameter4fvNVProc) (GLenum target, GLuint index, const GLfloat *v);
-
-#if defined(__cplusplus)
-}
-#endif
-
-
#endif // !__SG_EXTENSIONS_HXX
+++ /dev/null
-/* Shader
- *
- * Copyright (C) 2003-2005, Alexander Zaprjagaev <frustum@frustum.org>
- * Roman Grigoriev <grigoriev@gosniias.ru>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <simgear_config.h>
-#endif
-
-#include <simgear/debug/logstream.hxx>
-#include "shader.h"
-#include <stdio.h>
-#include <stdarg.h>
-
-#include <cstdlib>
-#include <cstring>
-
-glVertexAttrib1dProc glVertexAttrib1dPtr = NULL;
-glVertexAttrib1dvProc glVertexAttrib1dvPtr = NULL;
-glVertexAttrib1fProc glVertexAttrib1fPtr = NULL;
-glVertexAttrib1fvProc glVertexAttrib1fvPtr = NULL;
-glVertexAttrib1sProc glVertexAttrib1sPtr = NULL;
-glVertexAttrib1svProc glVertexAttrib1svPtr = NULL;
-glVertexAttrib2dProc glVertexAttrib2dPtr = NULL;
-glVertexAttrib2dvProc glVertexAttrib2dvPtr = NULL;
-glVertexAttrib2fProc glVertexAttrib2fPtr = NULL;
-glVertexAttrib2fvProc glVertexAttrib2fvPtr = NULL;
-glVertexAttrib2sProc glVertexAttrib2sPtr = NULL;
-glVertexAttrib2svProc glVertexAttrib2svPtr = NULL;
-glVertexAttrib3dProc glVertexAttrib3dPtr = NULL;
-glVertexAttrib3dvProc glVertexAttrib3dvPtr = NULL;
-glVertexAttrib3fProc glVertexAttrib3fPtr = NULL;
-glVertexAttrib3fvProc glVertexAttrib3fvPtr = NULL;
-glVertexAttrib3sProc glVertexAttrib3sPtr = NULL;
-glVertexAttrib3svProc glVertexAttrib3svPtr = NULL;
-glVertexAttrib4NbvProc glVertexAttrib4NbvPtr = NULL;
-glVertexAttrib4NivProc glVertexAttrib4NivPtr = NULL;
-glVertexAttrib4NsvProc glVertexAttrib4NsvPtr = NULL;
-glVertexAttrib4NubProc glVertexAttrib4NubPtr = NULL;
-glVertexAttrib4NubvProc glVertexAttrib4NubvPtr = NULL;
-glVertexAttrib4NuivProc glVertexAttrib4NuivPtr = NULL;
-glVertexAttrib4NusvProc glVertexAttrib4NusvPtr = NULL;
-glVertexAttrib4bvProc glVertexAttrib4bvPtr = NULL;
-glVertexAttrib4dProc glVertexAttrib4dPtr = NULL;
-glVertexAttrib4dvProc glVertexAttrib4dvPtr = NULL;
-glVertexAttrib4fProc glVertexAttrib4fPtr = NULL;
-glVertexAttrib4fvProc glVertexAttrib4fvPtr = NULL;
-glVertexAttrib4ivProc glVertexAttrib4ivPtr = NULL;
-glVertexAttrib4sProc glVertexAttrib4sPtr = NULL;
-glVertexAttrib4svProc glVertexAttrib4svPtr = NULL;
-glVertexAttrib4ubvProc glVertexAttrib4ubvPtr = NULL;
-glVertexAttrib4uivProc glVertexAttrib4uivPtr = NULL;
-glVertexAttrib4usvProc glVertexAttrib4usvPtr = NULL;
-glVertexAttribPointerProc glVertexAttribPointerPtr = NULL;
-glEnableVertexAttribArrayProc glEnableVertexAttribArrayPtr = NULL;
-glDisableVertexAttribArrayProc glDisableVertexAttribArrayPtr = NULL;
-glProgramStringProc glProgramStringPtr = NULL;
-glBindProgramProc glBindProgramPtr = NULL;
-glDeleteProgramsProc glDeleteProgramsPtr = NULL;
-glGenProgramsProc glGenProgramsPtr = NULL;
-glProgramEnvParameter4dProc glProgramEnvParameter4dPtr = NULL;
-glProgramEnvParameter4dvProc glProgramEnvParameter4dvPtr = NULL;
-glProgramEnvParameter4fProc glProgramEnvParameter4fPtr = NULL;
-glProgramEnvParameter4fvProc glProgramEnvParameter4fvPtr = NULL;
-glProgramLocalParameter4dProc glProgramLocalParameter4dPtr = NULL;
-glProgramLocalParameter4dvProc glProgramLocalParameter4dvPtr = NULL;
-glProgramLocalParameter4fProc glProgramLocalParameter4fPtr = NULL;
-glProgramLocalParameter4fvProc glProgramLocalParameter4fvPtr = NULL;
-glGetProgramEnvParameterdvProc glGetProgramEnvParameterdvPtr = NULL;
-glGetProgramEnvParameterfvProc glGetProgramEnvParameterfvPtr = NULL;
-glGetProgramLocalParameterdvProc glGetProgramLocalParameterdvPtr = NULL;
-glGetProgramLocalParameterfvProc glGetProgramLocalParameterfvPtr = NULL;
-glGetProgramivProc glGetProgramivPtr = NULL;
-glGetProgramStringProc glGetProgramStringPtr = NULL;
-glGetVertexAttribdvProc glGetVertexAttribdvPtr = NULL;
-glGetVertexAttribfvProc glGetVertexAttribfvPtr = NULL;
-glGetVertexAttribivProc glGetVertexAttribivPtr = NULL;
-glGetVertexAttribPointervProc glGetVertexAttribPointervPtr = NULL;
-glIsProgramProc glIsProgramPtr = NULL;
-
-glDeleteObjectProc glDeleteObjectPtr = NULL;
-glGetHandleProc glGetHandlePtr = NULL;
-glDetachObjectProc glDetachObjectPtr = NULL;
-glCreateShaderObjectProc glCreateShaderObjectPtr = NULL;
-glShaderSourceProc glShaderSourcePtr = NULL;
-glCompileShaderProc glCompileShaderPtr = NULL;
-glCreateProgramObjectProc glCreateProgramObjectPtr = NULL;
-glAttachObjectProc glAttachObjectPtr = NULL;
-glLinkProgramProc glLinkProgramPtr = NULL;
-glUseProgramObjectProc glUseProgramObjectPtr = NULL;
-glValidateProgramProc glValidateProgramPtr = NULL;
-glUniform1fProc glUniform1fPtr = NULL;
-glUniform2fProc glUniform2fPtr = NULL;
-glUniform3fProc glUniform3fPtr = NULL;
-glUniform4fProc glUniform4fPtr = NULL;
-glUniform1iProc glUniform1iPtr = NULL;
-glUniform2iProc glUniform2iPtr = NULL;
-glUniform3iProc glUniform3iPtr = NULL;
-glUniform4iProc glUniform4iPtr = NULL;
-glUniform1fvProc glUniform1fvPtr = NULL;
-glUniform2fvProc glUniform2fvPtr = NULL;
-glUniform3fvProc glUniform3fvPtr = NULL;
-glUniform4fvProc glUniform4fvPtr = NULL;
-glUniform1ivProc glUniform1ivPtr = NULL;
-glUniform2ivProc glUniform2ivPtr = NULL;
-glUniform3ivProc glUniform3ivPtr = NULL;
-glUniform4ivProc glUniform4ivPtr = NULL;
-glUniformMatrix2fvProc glUniformMatrix2fvPtr = NULL;
-glUniformMatrix3fvProc glUniformMatrix3fvPtr = NULL;
-glUniformMatrix4fvProc glUniformMatrix4fvPtr = NULL;
-glGetObjectParameterfvProc glGetObjectParameterfvPtr = NULL;
-glGetObjectParameterivProc glGetObjectParameterivPtr = NULL;
-glGetInfoLogProc glGetInfoLogPtr = NULL;
-glGetAttachedObjectsProc glGetAttachedObjectsPtr = NULL;
-glGetUniformLocationProc glGetUniformLocationPtr = NULL;
-glGetActiveUniformProc glGetActiveUniformPtr = NULL;
-glGetUniformfvProc glGetUniformfvPtr = NULL;
-glGetUniformivProc glGetUniformivPtr = NULL;
-glGetShaderSourceProc glGetShaderSourcePtr = NULL;
-
-glBindAttribLocationProc glBindAttribLocationPtr = NULL;
-glGetActiveAttribProc glGetActiveAttribPtr = NULL;
-glGetAttribLocationProc glGetAttribLocationPtr = NULL;
-
-glBindProgramNVProc glBindProgramNVPtr = NULL;
-glDeleteProgramsNVProc glDeleteProgramsNVPtr = NULL;
-glGenProgramsNVProc glGenProgramsNVPtr = NULL;
-glLoadProgramNVProc glLoadProgramNVPtr = NULL;
-glProgramParameter4fvNVProc glProgramParameter4fvNVPtr = NULL;
-
-bool Shader::VP_supported = false;
-bool Shader::FP_supported = false;
-bool Shader::GLSL_supported = false;
-bool Shader::NVFP_supported = false;
-GLint Shader::nb_texture_unit = 0;
-
-Shader::Shader(const char *name,const char *vertex,const char *fragment) {
-
- program = 0;
- vertex_target = 0;
- vertex_id = 0;
- fragment_target = 0;
- fragment_id = 0;
-
- char *data;
- FILE *file = fopen(name,"rb");
- if(!file) {
- SG_LOG(SG_GL, SG_ALERT, "Shader::Shader(): can't open '" << name << "' file\n");
- return;
- }
-
- fseek(file,0,SEEK_END);
- int size = ftell(file);
- data = new char[size + 1];
- data[size] = '\0';
- fseek(file,0,SEEK_SET);
- fread(data,1,size,file);
- fclose(file);
-
- // skip comments
- char *s = data;
- char *d = data;
- while(*s) {
- if(*s == '/' && *(s + 1) == '/') {
- while(*s && *s != '\n') s++;
- while(*s && *s == '\n') s++;
- *d++ = '\n';
- }
- else if(*s == '/' && *(s + 1) == '*') {
- while(*s && (*s != '*' || *(s + 1) != '/')) s++;
- s += 2;
- while(*s && *s == '\n') s++;
- *d++ = '\n';
- }
- else *d++ = *s++;
- }
- *d = '\0';
-
- // find shaders
- char *vertex_src = NULL;
- char *fragment_src = NULL;
- s = data;
- while(*s) {
- if(*s == '<') {
- char *name = s;
- while(*s) {
- if(std::strchr("> \t\n\r",*s)) break;
- s++;
- }
- if(*s == '>') { // it`s shader
- *name++ = '\0';
- *s++ = '\0';
- while(*s && std::strchr(" \t\n\r",*s)) s++;
- if(vertex == NULL && !std::strcmp(name,"vertex")) vertex_src = s;
- if(vertex && !std::strcmp(name,vertex)) vertex_src = s;
- if(fragment == NULL && !std::strcmp(name,"fragment")) fragment_src = s;
- if(fragment && !std::strcmp(name,fragment)) fragment_src = s;
- }
- }
- s++;
- }
-
- if(vertex_src) {
-
- // ARB vertex program
- if(VP_supported && !std::strncmp(vertex_src,"!!ARBvp1.0",10)) {
- vertex_target = GL_VERTEX_PROGRAM_ARB;
- glGenProgramsPtr(1,&vertex_id);
- glBindProgramPtr(GL_VERTEX_PROGRAM_ARB,vertex_id);
- glProgramStringPtr(GL_VERTEX_PROGRAM_ARB,GL_PROGRAM_FORMAT_ASCII_ARB,(GLsizei)std::strlen(vertex_src),vertex_src);
- GLint pos = -1;
- glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB,&pos);
- if(pos != -1) {
- SG_LOG(SG_GL, SG_ALERT, "Shader::Shader(): vertex program error in " << name << " file\n" << get_error(vertex_src,pos));
- return;
- }
- char *var = std::strstr(vertex_src, "#var ");
- while( var ) {
- char *eol = std::strchr( var + 1, '#');
- char *c2, *c3, *c4;
- c2 = strchr( var + 6, ' ');
- if( c2 ) {
- c3 = strchr( c2 + 1, ':');
- if( c3 ) {
- c4 = strchr( c3 + 1, ':');
- if( c4 )
- c4 = strchr( c4 + 1, '[');
- if( c4 && c4 < eol) {
- char type[10], name[30];
- std::strncpy( type, var + 5, c2-var-5 );
- type[c2-var-5] = 0;
- std::strncpy( name, c2 + 1, c3-c2-2 );
- name[c3-c2-2] = 0;
- struct Parameter p;
- p.location = atoi( c4 + 1);
- p.length = 4;
- if( ! std::strcmp(type, "float3") )
- p.length = 3;
- else if( ! strcmp(type, "float") )
- p.length = 1;
- arb_parameters[ name ] = p;
- }
- }
- }
- var = strstr(var + 1, "#var ");
- }
- }
- // ARB vertex shader
- else {
-
- program = glCreateProgramObjectPtr();
-
- GLint length = (GLint)std::strlen(vertex_src);
- GLhandleARB vertex = glCreateShaderObjectPtr(GL_VERTEX_SHADER_ARB);
- glShaderSourcePtr(vertex,1,(const GLcharARB**)&vertex_src,&length);
- glCompileShaderPtr(vertex);
- glAttachObjectPtr(program,vertex);
- glDeleteObjectPtr(vertex);
-
- glBindAttribLocationPtr(program,0,"s_attribute_0");
- glBindAttribLocationPtr(program,1,"s_attribute_1");
- glBindAttribLocationPtr(program,2,"s_attribute_2");
- glBindAttribLocationPtr(program,3,"s_attribute_3");
- glBindAttribLocationPtr(program,4,"s_attribute_4");
- glBindAttribLocationPtr(program,5,"s_attribute_5");
- glBindAttribLocationPtr(program,6,"s_attribute_6");
-
- glBindAttribLocationPtr(program,0,"s_xyz");
- glBindAttribLocationPtr(program,1,"s_normal");
- glBindAttribLocationPtr(program,2,"s_tangent");
- glBindAttribLocationPtr(program,3,"s_binormal");
- glBindAttribLocationPtr(program,4,"s_texcoord");
- }
- }
-
- if(fragment_src) {
-
- // ARB fragment program
- if(FP_supported && !std::strncmp(fragment_src,"!!ARBfp1.0",10)) {
- fragment_target = GL_FRAGMENT_PROGRAM_ARB;
- glGenProgramsPtr(1,&fragment_id);
- glBindProgramPtr(GL_FRAGMENT_PROGRAM_ARB,fragment_id);
- glProgramStringPtr(GL_FRAGMENT_PROGRAM_ARB,GL_PROGRAM_FORMAT_ASCII_ARB,(GLsizei)std::strlen(fragment_src),fragment_src);
- GLint pos = -1;
- glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB,&pos);
- if(pos != -1) {
- SG_LOG(SG_GL, SG_ALERT, "Shader::Shader(): fragment program error in " << name << " file\n" << get_error(fragment_src,pos));
- return;
- }
- }
-
- // NV fragment program
- else if(!strncmp(fragment_src,"!!FP1.0",7)) {
- fragment_target = GL_FRAGMENT_PROGRAM_NV;
- glGenProgramsNVPtr(1,&fragment_id);
- glBindProgramNVPtr(GL_FRAGMENT_PROGRAM_NV,fragment_id);
- glLoadProgramNVPtr(GL_FRAGMENT_PROGRAM_NV,fragment_id,(GLsizei)std::strlen(fragment_src),(GLubyte*)fragment_src);
- GLint pos = -1;
- glGetIntegerv(GL_PROGRAM_ERROR_POSITION_NV,&pos);
- if(pos != -1) {
- SG_LOG(SG_GL, SG_ALERT, "Shader::Shader(): fragment program error in " << name << " file\n" << get_error(fragment_src,pos));
- return;
- }
- }
-
- // ARB fragment shader
- else {
-
- if(!program) program = glCreateProgramObjectPtr();
-
- GLint length = (GLint)std::strlen(fragment_src);
- GLhandleARB fragment = glCreateShaderObjectPtr(GL_FRAGMENT_SHADER_ARB);
- glShaderSourcePtr(fragment,1,(const GLcharARB**)&fragment_src,&length);
- glCompileShaderPtr(fragment);
- glAttachObjectPtr(program,fragment);
- glDeleteObjectPtr(fragment);
- }
- }
-
- if(program) {
-
- glLinkProgramPtr(program);
- GLint linked;
- glGetObjectParameterivPtr(program,GL_OBJECT_LINK_STATUS_ARB,&linked);
- if(!linked) {
- SG_LOG(SG_GL, SG_ALERT, "Shader::Shader(): GLSL error in " << name << " file\n" << get_glsl_error());
- return;
- }
-
- glUseProgramObjectPtr(program);
-
- for(int i = 0; i < 8; i++) {
- char texture[32];
- sprintf(texture,"s_texture_%d",i);
- GLint location = glGetUniformLocationPtr(program,texture);
- if(location >= 0) glUniform1iPtr(location,i);
- }
-
- glUseProgramObjectPtr(0);
-
- glValidateProgramPtr(program);
- GLint validated;
- glGetObjectParameterivPtr(program,GL_OBJECT_VALIDATE_STATUS_ARB,&validated);
- if(!validated) {
- SG_LOG(SG_GL, SG_ALERT, "Shader::Shader(): GLSL error in " << name << " file\n" << get_glsl_error());
- return;
- }
- }
-
- delete [] data;
-}
-
-Shader::~Shader() {
- if(program) glDeleteObjectPtr(program);
- if(vertex_target == GL_VERTEX_PROGRAM_ARB) glDeleteProgramsPtr(1,&vertex_id);
- if(fragment_target == GL_FRAGMENT_PROGRAM_ARB) glDeleteProgramsPtr(1,&fragment_id);
- else if(fragment_target == GL_FRAGMENT_PROGRAM_NV) glDeleteProgramsNVPtr(1,&fragment_id);
- parameters.clear();
-}
-
-/*
- */
-const char *Shader::get_error(char *data,int pos) {
- char *s = data;
- while(*s && pos--) s++;
- while(s >= data && *s != '\n') s--;
- char *e = ++s;
- while(*e != '\0' && *e != '\n') e++;
- *e = '\0';
- return s;
-}
-
-/*
- */
-
-const char *Shader::get_glsl_error() {
- GLint length;
- static char error[4096];
- glGetInfoLogPtr(program,sizeof(error),&length,error);
- return error;
-}
-
-/*
- */
-void Shader::getParameter(const char *name,Parameter *parameter) {
- if( program ) {
- char buf[1024];
- std::strcpy(buf,name);
- char *s = std::strchr(buf,':');
- if(s) {
- *s++ = '\0';
- parameter->length = std::atoi(s);
- } else {
- parameter->length = 4;
- }
- parameter->location = glGetUniformLocationPtr(program,buf);
- } else if( vertex_id ) {
- arb_parameter_list::iterator iParam = arb_parameters.find(name);
- if( iParam != arb_parameters.end() )
- parameter->location = iParam->second.location;
- else
- parameter->location = 90;
- parameter->length = 4;
- }
-}
-
-/*
- */
-void Shader::bindNames(const char *name,...) {
- Parameter parameter;
- getParameter(name,¶meter);
- parameters.push_back(parameter);
- va_list args;
- va_start(args,name);
- while(1) {
- const char *name = va_arg(args,const char*);
- if(name == NULL) break;
- getParameter(name,¶meter);
- parameters.push_back(parameter);
- }
- va_end(args);
-}
-
-/*****************************************************************************/
-/* */
-/* enable/disable/bind */
-/* */
-/*****************************************************************************/
-
-/*
- */
-void Shader::enable() {
- if(vertex_id) glEnable(vertex_target);
- if(fragment_id) glEnable(fragment_target);
-}
-
-/*
- */
-void Shader::disable() {
- if(program) glUseProgramObjectPtr(0);
- if(vertex_id) glDisable(vertex_target);
- if(fragment_id) glDisable(fragment_target);
-}
-
-/*
- */
-void Shader::bind() {
- if(program) glUseProgramObjectPtr(program);
- if(vertex_id) {
- if(vertex_target == GL_VERTEX_PROGRAM_ARB) glBindProgramPtr(vertex_target,vertex_id);
- }
- if(fragment_id) {
- if(fragment_target == GL_FRAGMENT_PROGRAM_ARB) glBindProgramPtr(fragment_target,fragment_id);
- else if(fragment_target == GL_FRAGMENT_PROGRAM_NV) glBindProgramNVPtr(fragment_target,fragment_id);
- }
-}
-
-/*
- */
-void Shader::bind(const float *v,...) {
- if(fragment_id) {
- if(fragment_target == GL_FRAGMENT_PROGRAM_ARB) glBindProgramPtr(fragment_target,fragment_id);
- else if(fragment_target == GL_FRAGMENT_PROGRAM_NV) glBindProgramNVPtr(fragment_target,fragment_id);
- } else {
- if(program == 0) {
- SG_LOG(SG_GL, SG_ALERT, "Shader::bind(): error GLSL shader isn't loaded\n");
- return;
- }
- glUseProgramObjectPtr(program);
- }
- const float *value = v;
- va_list args;
- va_start(args,v);
- for(int i = 0; i < (int)parameters.size(); i++) {
- if( vertex_target ) {
- glProgramLocalParameter4fvPtr( vertex_target, parameters[i].location, value);
- } else if( program ) {
- if(parameters[i].length == 1) glUniform1fvPtr(parameters[i].location,1,value);
- else if(parameters[i].length == 2) glUniform2fvPtr(parameters[i].location,1,value);
- else if(parameters[i].length == 3) glUniform3fvPtr(parameters[i].location,1,value);
- else if(parameters[i].length == 4) glUniform4fvPtr(parameters[i].location,1,value);
- else if(parameters[i].length == 9) glUniformMatrix3fvPtr(parameters[i].location,1,false,value);
- else if(parameters[i].length == 16) glUniformMatrix4fvPtr(parameters[i].location,1,false,value);
- }
- value = va_arg(args,const float*);
- if(!value) break;
- }
- va_end(args);
-}
-
-/*****************************************************************************/
-/* */
-/* set parameters */
-/* */
-/*****************************************************************************/
-
-void Shader::setLocalParameter(int location,const float *value) {
- if(vertex_target == 0) {
- SG_LOG(SG_GL, SG_ALERT, "Shader::setLocalParameter(): error vertex program isn't loaded\n");
- return;
- }
- glProgramLocalParameter4fvPtr(vertex_target,location,value);
-}
-
-void Shader::setEnvParameter(int location,const float *value) {
- if(vertex_target == 0) {
- SG_LOG(SG_GL, SG_ALERT, "Shader::setEnvParameter(): error vertex program isn't loaded\n");
- return;
- }
- glProgramEnvParameter4fvPtr(vertex_target,location,value);
-}
-
-/*
- */
-void Shader::setParameter(const char *name,const float *value) {
- Parameter parameter;
- getParameter(name,¶meter);
- if( vertex_target ) {
- glProgramLocalParameter4fvPtr( vertex_target, parameter.location, value);
- return;
- }
- if(program == 0) {
- SG_LOG(SG_GL, SG_ALERT, "Shader::setLocalParameter(): error GLSL shader isn't loaded\n");
- return;
- }
- if(parameter.length == 1) glUniform1fvPtr(parameter.location,1,value);
- else if(parameter.length == 2) glUniform2fvPtr(parameter.location,1,value);
- else if(parameter.length == 3) glUniform3fvPtr(parameter.location,1,value);
- else if(parameter.length == 4) glUniform4fvPtr(parameter.location,1,value);
- else if(parameter.length == 9) glUniformMatrix3fvPtr(parameter.location,1,false,value);
- else if(parameter.length == 16) glUniformMatrix4fvPtr(parameter.location,1,false,value);
-}
-
-/*
- */
-void Shader::setParameters(const float *v,...) {
- const float *value = v;
- va_list args;
- va_start(args,v);
- for(int i = 0; i < (int)parameters.size(); i++) {
- if( vertex_target ) {
- glProgramLocalParameter4fvPtr( vertex_target, parameters[i].location, value);
- } else if( program ) {
- if(parameters[i].length == 1) glUniform1fvPtr(parameters[i].location,1,value);
- else if(parameters[i].length == 2) glUniform2fvPtr(parameters[i].location,1,value);
- else if(parameters[i].length == 3) glUniform3fvPtr(parameters[i].location,1,value);
- else if(parameters[i].length == 4) glUniform4fvPtr(parameters[i].location,1,value);
- else if(parameters[i].length == 9) glUniformMatrix3fvPtr(parameters[i].location,1,false,value);
- else if(parameters[i].length == 16) glUniformMatrix4fvPtr(parameters[i].location,1,false,value);
- }
- value = va_arg(args,const float*);
- if(!value) break;
- }
- va_end(args);
-}
-
-#ifndef CONCAT
-#define CONCAT(a,b) a##b
-#endif
-#define mystringify(a) CONCAT(ST,R)(a)
-#define STR(x) #x
-#define LOAD_EXT(fn) CONCAT(fn,Ptr) = (CONCAT(fn,Proc)) SGLookupFunction( mystringify(CONCAT(fn,ARB)) )
-
-void Shader::Init(void) {
- if( SGIsOpenGLExtensionSupported("GL_ARB_multitexture") )
- glGetIntegerv( GL_MAX_TEXTURE_UNITS_ARB, &nb_texture_unit );
- VP_supported = SGIsOpenGLExtensionSupported("GL_ARB_vertex_program");
- FP_supported = SGIsOpenGLExtensionSupported("GL_ARB_fragment_program");
- // check that
- GLSL_supported = SGIsOpenGLExtensionSupported("GL_ARB_shading_language_100") &&
- SGIsOpenGLExtensionSupported("GL_ARB_fragment_shader") &&
- SGIsOpenGLExtensionSupported("GL_ARB_vertex_shader") &&
- SGIsOpenGLExtensionSupported("GL_ARB_shader_objects");
- NVFP_supported = SGIsOpenGLExtensionSupported("GL_NV_fragment_program");
-
- if( VP_supported || FP_supported ) {
- /* All ARB_fragment_program entry points are shared with ARB_vertex_program. */
- LOAD_EXT(glVertexAttrib1d);
- LOAD_EXT( glVertexAttrib1dv );
- LOAD_EXT( glVertexAttrib1f );
- LOAD_EXT( glVertexAttrib1fv );
- LOAD_EXT( glVertexAttrib1s );
- LOAD_EXT( glVertexAttrib1sv );
- LOAD_EXT( glVertexAttrib2d );
- LOAD_EXT( glVertexAttrib2dv );
- LOAD_EXT( glVertexAttrib2f );
- LOAD_EXT( glVertexAttrib2fv );
- LOAD_EXT( glVertexAttrib2s );
- LOAD_EXT( glVertexAttrib2sv );
- LOAD_EXT( glVertexAttrib3d );
- LOAD_EXT( glVertexAttrib3dv );
- LOAD_EXT( glVertexAttrib3f );
- LOAD_EXT( glVertexAttrib3fv );
- LOAD_EXT( glVertexAttrib3s );
- LOAD_EXT( glVertexAttrib3sv );
- LOAD_EXT( glVertexAttrib4Nbv );
- LOAD_EXT( glVertexAttrib4Niv );
- LOAD_EXT( glVertexAttrib4Nsv );
- LOAD_EXT( glVertexAttrib4Nub );
- LOAD_EXT( glVertexAttrib4Nubv );
- LOAD_EXT( glVertexAttrib4Nuiv );
- LOAD_EXT( glVertexAttrib4Nusv );
- LOAD_EXT( glVertexAttrib4bv );
- LOAD_EXT( glVertexAttrib4d );
- LOAD_EXT( glVertexAttrib4dv );
- LOAD_EXT( glVertexAttrib4f );
- LOAD_EXT( glVertexAttrib4fv );
- LOAD_EXT( glVertexAttrib4iv );
- LOAD_EXT( glVertexAttrib4s );
- LOAD_EXT( glVertexAttrib4sv );
- LOAD_EXT( glVertexAttrib4ubv );
- LOAD_EXT( glVertexAttrib4uiv );
- LOAD_EXT( glVertexAttrib4usv );
- LOAD_EXT( glVertexAttribPointer );
- LOAD_EXT( glEnableVertexAttribArray );
- LOAD_EXT( glDisableVertexAttribArray );
- LOAD_EXT( glProgramString );
- LOAD_EXT( glBindProgram );
- LOAD_EXT( glDeletePrograms );
- LOAD_EXT( glGenPrograms );
- LOAD_EXT( glProgramEnvParameter4d );
- LOAD_EXT( glProgramEnvParameter4dv );
- LOAD_EXT( glProgramEnvParameter4f );
- LOAD_EXT( glProgramEnvParameter4fv );
- LOAD_EXT( glProgramLocalParameter4d );
- LOAD_EXT( glProgramLocalParameter4dv );
- LOAD_EXT( glProgramLocalParameter4f );
- LOAD_EXT( glProgramLocalParameter4fv );
- LOAD_EXT( glGetProgramEnvParameterdv );
- LOAD_EXT( glGetProgramEnvParameterfv );
- LOAD_EXT( glGetProgramLocalParameterdv );
- LOAD_EXT( glGetProgramLocalParameterfv );
- LOAD_EXT( glGetProgramiv );
- LOAD_EXT( glGetProgramString );
- LOAD_EXT( glGetVertexAttribdv );
- LOAD_EXT( glGetVertexAttribfv );
- LOAD_EXT( glGetVertexAttribiv );
- LOAD_EXT( glGetVertexAttribPointerv );
- LOAD_EXT( glIsProgram );
- }
- if( GLSL_supported ) {
- LOAD_EXT( glDeleteObject );
- LOAD_EXT( glGetHandle );
- LOAD_EXT( glDetachObject );
- LOAD_EXT( glCreateShaderObject );
- LOAD_EXT( glShaderSource );
- LOAD_EXT( glCompileShader );
- LOAD_EXT( glCreateProgramObject );
- LOAD_EXT( glAttachObject );
- LOAD_EXT( glLinkProgram );
- LOAD_EXT( glUseProgramObject );
- LOAD_EXT( glValidateProgram );
- LOAD_EXT( glUniform1f );
- LOAD_EXT( glUniform2f );
- LOAD_EXT( glUniform3f );
- LOAD_EXT( glUniform4f );
- LOAD_EXT( glUniform1i );
- LOAD_EXT( glUniform2i );
- LOAD_EXT( glUniform3i );
- LOAD_EXT( glUniform4i );
- LOAD_EXT( glUniform1fv );
- LOAD_EXT( glUniform2fv );
- LOAD_EXT( glUniform3fv );
- LOAD_EXT( glUniform4fv );
- LOAD_EXT( glUniform1iv );
- LOAD_EXT( glUniform2iv );
- LOAD_EXT( glUniform3iv );
- LOAD_EXT( glUniform4iv );
- LOAD_EXT( glUniformMatrix2fv );
- LOAD_EXT( glUniformMatrix3fv );
- LOAD_EXT( glUniformMatrix4fv );
- LOAD_EXT( glGetObjectParameterfv );
- LOAD_EXT( glGetObjectParameteriv );
- LOAD_EXT( glGetInfoLog );
- LOAD_EXT( glGetAttachedObjects );
- LOAD_EXT( glGetUniformLocation );
- LOAD_EXT( glGetActiveUniform );
- LOAD_EXT( glGetUniformfv );
- LOAD_EXT( glGetUniformiv );
- LOAD_EXT( glGetShaderSource );
-
- LOAD_EXT( glBindAttribLocation );
- LOAD_EXT( glGetActiveAttrib );
- LOAD_EXT( glGetAttribLocation );
-
- }
- if( NVFP_supported ) {
- glBindProgramNVPtr = (glBindProgramNVProc) SGLookupFunction( "glBindProgramNV" );
- glDeleteProgramsNVPtr = (glDeleteProgramsNVProc) SGLookupFunction( "glDeleteProgramsNV" );
- glGenProgramsNVPtr = (glGenProgramsNVProc) SGLookupFunction( "glGenProgramsNV" );
- glLoadProgramNVPtr = (glLoadProgramNVProc) SGLookupFunction( "glLoadProgramNV" );
- glProgramParameter4fvNVPtr = (glProgramParameter4fvNVProc) SGLookupFunction( "glProgramParameter4fvNV" );
- }
-}
+++ /dev/null
-/* Shader
- *
- * Copyright (C) 2003-2005, Alexander Zaprjagaev <frustum@frustum.org>
- * Roman Grigoriev <grigoriev@gosniias.ru>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-
-#ifndef __SHADER_H__
-#define __SHADER_H__
-
-#include <simgear/compiler.h>
-#include <simgear/screen/extensions.hxx>
-
-#include <vector>
-
-#include <map>
-#include <string>
-
-using std::map;
-using std::vector;
-using std::string;
-
-class Shader {
-public:
-
- Shader(const char *name,const char *vertex = NULL,const char *fragment = NULL);
- ~Shader();
-
- void bindNames(const char *name,...);
-
- void enable();
- void disable();
- void bind();
- void bind(const float *value,...);
-
- void setLocalParameter(int location,const float *value);
- void setEnvParameter(int location,const float *value);
-
- void setParameter(const char *name,const float *value);
- void setParameters(const float *value,...);
-
- static void Init(void);
- inline static bool is_VP_supported(void) {return VP_supported;}
- inline static bool is_FP_supported(void) {return FP_supported;}
- inline static bool is_GLSL_supported(void) {return GLSL_supported;}
- inline static bool is_NVFP_supported(void) {return NVFP_supported;}
- inline static int get_nb_texture_units(void) {return nb_texture_unit;}
-
-protected:
-
- struct Parameter {
- GLuint location;
- int length;
- };
-
- const char *get_error(char *data,int pos);
- const char *get_glsl_error();
-
- void getParameter(const char *name,Parameter *parameter);
-
- GLhandleARB program;
-
- GLuint vertex_target;
- GLuint vertex_id;
-
- GLuint fragment_target;
- GLuint fragment_id;
-
- std::vector<Parameter> parameters;
- typedef map<string, struct Parameter> arb_parameter_list;
- arb_parameter_list arb_parameters;
-
- static bool VP_supported, FP_supported, GLSL_supported, NVFP_supported;
- static GLint nb_texture_unit;
-};
-
-#endif /* __SHADER_H__ */
+++ /dev/null
-
-class CGlPrinter
-{
-public:
- typedef enum { RENDER_TO_PRINTER, RENDER_TO_BITMAP, READ_BITMAP, PRINT_BITMAP } PRINTMODE;
-public:
- inline CGlPrinter( PRINTMODE mode = READ_BITMAP );
- inline ~CGlPrinter();
- inline bool Begin( char *title, int w=0, int h=0 );
- inline void End( GLubyte *bm=NULL );
- inline double GetAspect();
- inline int GetHorzRes();
- inline int GetVertRes();
-
-private:
- PRINTMODE m_printMode;
- PRINTDLG m_printDLG;
- BITMAPINFO m_bitmapInfo;
- void *m_bitmap;
- HBITMAP bitmapHandle;
- HDC m_bitmapDC;
- HGLRC m_printerHGLRC;
- HGLRC m_bitmapHGLRC;
- int m_pageWidth; // Dimension of printer page (x)
- int m_pageHeight; // Dimension of printer page (y)
-};
-
-inline double CGlPrinter::GetAspect()
-{
- return (double)m_pageWidth/(double)m_pageHeight;
-}
-
-inline int CGlPrinter::GetHorzRes()
-{
- return m_pageWidth;
-}
-
-inline int CGlPrinter::GetVertRes()
-{
- return m_pageHeight;
-}
-
-inline CGlPrinter::CGlPrinter( PRINTMODE mode ) :
- m_printerHGLRC( 0 ), m_bitmapHGLRC( 0 ), m_printMode( mode ), m_bitmap( NULL )
-{
-}
-
-inline CGlPrinter::~CGlPrinter()
-{
-}
-
-inline bool CGlPrinter::Begin( char *title, int w, int h )
-{
- // Pixel format for Printer Device context
- static PIXELFORMATDESCRIPTOR pPrintfd = {
- sizeof(PIXELFORMATDESCRIPTOR), // Size of this structure
- 1, // Version of this structure
- PFD_DRAW_TO_WINDOW | // Draw to Window (not to m_bitmap)
- PFD_SUPPORT_OPENGL | // Support OpenGL calls
- PFD_SUPPORT_GDI | // Allow GDI drawing in window too
- PFD_DEPTH_DONTCARE, // Don't care about depth buffering
- PFD_TYPE_RGBA, // RGBA Color mode
- 24, // Want 24bit color
- 0,0,0,0,0,0, // Not used to select mode
- 0,0, // Not used to select mode
- 0,0,0,0,0, // Not used to select mode
- 0, // Size of depth buffer
- 0, // Not used to select mode
- 0, // Not used to select mode
- 0, // Not used to select mode
- 0, // Not used to select mode
- 0,0,0 }; // Not used to select mode
-
- DOCINFO docInfo; // Document Info
- int nPixelFormat; // Pixel format requested
-
- // Get printer information
- memset(&m_printDLG,0,sizeof(PRINTDLG));
- m_printDLG.lStructSize = sizeof(PRINTDLG);
- m_printDLG.hwndOwner = GetForegroundWindow();
- m_printDLG.hDevMode = NULL;
- m_printDLG.hDevNames = NULL;
- m_printDLG.Flags = PD_RETURNDC | PD_ALLPAGES;
-
- // Display printer dialog
- if(!PrintDlg(&m_printDLG))
- {
- printf( "PrintDlg() failed %lx\n", GetLastError() );
- return false;
- }
-
- // Get the dimensions of the page
- m_pageWidth = GetDeviceCaps(m_printDLG.hDC, HORZRES);
- m_pageHeight = GetDeviceCaps(m_printDLG.hDC, VERTRES);
-
- // Initialize DocInfo structure
- docInfo.cbSize = sizeof(DOCINFO);
- docInfo.lpszDocName = title;
- docInfo.lpszOutput = NULL;
-
-
- // Choose a pixel format that best matches that described in pfd
- nPixelFormat = ChoosePixelFormat(m_printDLG.hDC, &pPrintfd);
- // Watch for no pixel format available for this printer
- if(nPixelFormat == 0)
- {
- // Delete the printer context
- DeleteDC(m_printDLG.hDC);
-
- printf( "ChoosePixelFormat() failed %lx\n", GetLastError() );
- return false;
- }
-
- // Start the document and page
- StartDoc(m_printDLG.hDC, &docInfo);
- StartPage(m_printDLG.hDC);
-
- // Set the pixel format for the device context, but watch for failure
- if(!SetPixelFormat(m_printDLG.hDC, nPixelFormat, &pPrintfd))
- {
- // Delete the printer context
- DeleteDC(m_printDLG.hDC);
-
- printf( "SetPixelFormat() failed %lx\n", GetLastError() );
- return false;
- }
-
- // Create the Rendering context and make it current
- if ( m_printMode == RENDER_TO_PRINTER )
- {
- m_printerHGLRC = wglCreateContext(m_printDLG.hDC);
- wglMakeCurrent(m_printDLG.hDC, m_printerHGLRC);
- }
- else
- {
- memset( &m_bitmapInfo, 0, sizeof(BITMAPINFO) );
- m_bitmapInfo.bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
- if ( m_printMode == READ_BITMAP )
- {
- GLint vp[4];
- glGetIntegerv( GL_VIEWPORT, vp );
- m_bitmapInfo.bmiHeader.biWidth = vp[2];
- m_bitmapInfo.bmiHeader.biHeight = (vp[3] + 3) & ~3;
- }
- else
- {
- if ( m_printMode == RENDER_TO_BITMAP )
- {
- m_bitmapInfo.bmiHeader.biWidth = m_pageWidth;
- m_bitmapInfo.bmiHeader.biHeight = m_pageHeight;
- }
- else
- {
- // PRINT_BITMAP
- m_bitmapInfo.bmiHeader.biWidth = w;
- m_bitmapInfo.bmiHeader.biHeight = h;
- }
- }
- m_bitmapInfo.bmiHeader.biPlanes = 1;
- m_bitmapInfo.bmiHeader.biBitCount = 24;
- m_bitmapInfo.bmiHeader.biCompression = BI_RGB;
- m_bitmapInfo.bmiHeader.biSizeImage = m_bitmapInfo.bmiHeader.biWidth*m_bitmapInfo.bmiHeader.biHeight*3;
- m_bitmapInfo.bmiHeader.biXPelsPerMeter = 2952; // 75dpi
- m_bitmapInfo.bmiHeader.biYPelsPerMeter = 2952; // 75dpi
- m_bitmapInfo.bmiHeader.biClrUsed = 0;
- m_bitmapInfo.bmiHeader.biClrImportant = 0;
- bitmapHandle = CreateDIBSection( NULL, &m_bitmapInfo, DIB_RGB_COLORS, &m_bitmap, NULL, 0);
- m_bitmapDC = CreateCompatibleDC( NULL );
- if ( m_bitmapDC == NULL )
- {
- DeleteDC(m_printDLG.hDC);
- printf( "CreateCompatibleDC() failed %lx\n", GetLastError() );
- return false;
- }
- if ( SelectObject( m_bitmapDC, bitmapHandle ) == NULL )
- {
- DeleteDC(m_printDLG.hDC);
- DeleteDC(m_bitmapDC);
- printf( "SelectObject() failed %lx\n", GetLastError() );
- return false;
- }
- PIXELFORMATDESCRIPTOR pfd;
- memset( &pfd, 0, sizeof(PIXELFORMATDESCRIPTOR) );
- pfd.nVersion = 1 ;
- pfd.dwFlags = PFD_DRAW_TO_BITMAP | PFD_SUPPORT_OPENGL;
- pfd.iPixelType = PFD_TYPE_RGBA ;
- pfd.cColorBits = 24;
- pfd.iLayerType = PFD_MAIN_PLANE;
- int pixelFormat = ::ChoosePixelFormat(m_bitmapDC, &pfd);
- SetPixelFormat (m_bitmapDC, pixelFormat, &pfd);
- if ( m_printMode == RENDER_TO_BITMAP )
- {
- m_bitmapHGLRC = wglCreateContext( m_bitmapDC );
- wglMakeCurrent( m_bitmapDC, m_bitmapHGLRC );
- }
- }
-
- if ( m_printMode == RENDER_TO_PRINTER || m_printMode == RENDER_TO_BITMAP )
- {
- // Set viewing volume info
- //glViewport(0,0,m_pageWidth/2,m_pageHeight/2); // Put this in to restrict area of page.
-
- GLfloat nRange = 100.0f;
-
- // Reset projection matrix stack
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
-
- // Establish clipping volume (left, right, bottom, top, near, far)
- // This keeps the perspective square regardless of window or page size
-
- if (m_pageHeight <= m_pageWidth)
- {
- glOrtho (-nRange, nRange, -nRange*m_pageHeight/m_pageWidth, nRange*m_pageHeight/m_pageWidth, -nRange, nRange);
- }
- else
- {
- glOrtho (-nRange*m_pageWidth/m_pageHeight, nRange*m_pageWidth/m_pageHeight, -nRange, nRange, -nRange, nRange);
- }
-
- // Reset Model view matrix stack
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glRotatef(270.0f, 1.0, 0.0, 0.0);
- }
-
- return true;
-}
-
-inline void CGlPrinter::End( GLubyte *bm )
-{
- if ( m_printDLG.hDC )
- {
- glFinish();
-
- if ( m_printMode == RENDER_TO_PRINTER )
- {
- if ( m_printerHGLRC )
- {
- wglDeleteContext( m_printerHGLRC );
- }
- }
- else
- {
- if ( m_printMode == RENDER_TO_BITMAP )
- {
- BitBlt( m_printDLG.hDC, 0,0, m_pageWidth,m_pageHeight, m_bitmapDC, 0,0, SRCCOPY );
- }
- else
- {
- if ( m_printMode == READ_BITMAP )
- {
- glPixelStorei( GL_PACK_ALIGNMENT, 4 );
- glPixelStorei( GL_PACK_ROW_LENGTH, 0 );
- glPixelStorei( GL_PACK_SKIP_ROWS, 0 );
- glPixelStorei( GL_PACK_SKIP_PIXELS, 0 );
- //GLubyte *tempbitmap = (GLubyte *) malloc(m_bitmapInfo.bmiHeader.biWidth*m_bitmapInfo.bmiHeader.biHeight*4);
- glReadPixels( 0,0, m_bitmapInfo.bmiHeader.biWidth,m_bitmapInfo.bmiHeader.biHeight,
- GL_RGB, GL_UNSIGNED_BYTE, m_bitmap );
- }
- else
- {
- //PRINT_BITMAP
- memcpy( m_bitmap, bm, m_bitmapInfo.bmiHeader.biSizeImage );
- }
- int i,j;
- GLubyte *rgb, temp;
- for ( i = 0; i < m_bitmapInfo.bmiHeader.biHeight; i++ )
- {
- for ( j = 0, rgb = ((GLubyte *)m_bitmap) + i * m_bitmapInfo.bmiHeader.biWidth * 3;
- j < m_bitmapInfo.bmiHeader.biWidth;
- j++, rgb +=3 )
- {
- temp = rgb[0];
- rgb[0] = rgb[2];
- rgb[2] = temp;
- }
- }
- long width = m_pageWidth;
- long height = width * m_bitmapInfo.bmiHeader.biHeight / m_bitmapInfo.bmiHeader.biWidth;
- if ( height > m_pageHeight )
- {
- height = m_pageHeight;
- width = height * m_bitmapInfo.bmiHeader.biWidth / m_bitmapInfo.bmiHeader.biHeight;
- }
- long xoffset = (m_pageWidth - width) / 2;
- long yoffset = (m_pageHeight - height) / 2;
- StretchBlt( m_printDLG.hDC, xoffset, yoffset, width, height, m_bitmapDC, 0, 0,
- m_bitmapInfo.bmiHeader.biWidth, m_bitmapInfo.bmiHeader.biHeight, SRCCOPY );
- }
- if ( m_bitmapDC )
- {
- DeleteDC( m_bitmapDC );
- }
- if ( bitmapHandle )
- {
- DeleteObject( bitmapHandle );
- }
- if ( m_bitmapHGLRC )
- {
- wglDeleteContext( m_bitmapHGLRC );
- }
- }
-
- /* EndPage... */
- if ( EndPage( m_printDLG.hDC ) <=0 )
- {
- printf( "EndPage() failed\n" );
- }
-
- /* EndDoc... */
- if ( EndDoc( m_printDLG.hDC ) <=0 )
- {
- printf( "EndDoc() failed\n" );
- }
-
- // Delete the printer context when done with it
- DeleteDC(m_printDLG.hDC);
-
- // Restore window rendering context
- //wglMakeCurrent(hDC, hRC);
- wglMakeCurrent( NULL, NULL );
-
- }
-}
projects / simgear.git / commitdiff