// 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.
//
// --------------------------------------------------------------------------
/**
* Implementation of class RenderTexture. A multi-format render to
* texture wrapper.
*/
-#pragma warning(disable:4786)
/*
* Changelog:
# include <simgear_config.h>
#endif
-#ifdef HAVE_WINDOWS_H
-# include <windows.h>
-#endif
-
#include <simgear/compiler.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/screen/extensions.hxx>
#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 */
_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);
_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);
#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() );
+
}
*/
RenderTexture::~RenderTexture()
{
+ dbg_printf("RenderTexture::~RenderTexture: destructor.\n" );
_Invalidate();
}
* @fn PrintExtensionError( char* strMsg, ... )
* @brief Prints an error about missing OpenGL extensions.
*/
-void PrintExtensionError( char* strMsg, ... )
+void PrintExtensionError( const char* strMsg, ... )
{
SG_LOG(SG_GL, SG_ALERT,
"Error: RenderTexture requires the following unsupported "
char strBuffer[512];
va_list args;
va_start(args, strMsg);
-#if defined _WIN32 && !defined __CYGWIN__
- _vsnprintf( strBuffer, 512, strMsg, args );
-#else
vsnprintf( strBuffer, 512, strMsg, args );
-#endif
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 :
{
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);
_bCopyContext = copyContext;
// Check if this is an NVXX GPU and verify necessary extensions.
- if (!_VerifyExtensions())
- return false;
+ if (!_VerifyExtensions()) {
+ dbg_printf("RenderTexture::Initialize: _VerifyExtensions() FAILED - returning false.\n" );
+ return false;
+ }
if (_bInitialized)
_Invalidate();
fprintf(stderr, "Couldn't get current context!");
CGLPixelFormatObj pixFormat = NULL;
- long int iNumFormats;
+ GLint iNumFormats;
CGLError error;
// Copy the _pixelFormatAttribs into another array to fix
return false;
}
- long screen;
+ GLint screen;
if (error = CGLGetVirtualScreen(CGLGetCurrentContext(), &screen))
{
_cglCheckError(error);
#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)
+ 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 (glXVersion1_3Present)
+ if (glXCreatePbufferPtr && glXGetVisualFromFBConfigPtr && glXCreateContextPtr)
{
- int pbufAttrib[] = {
- GLX_PBUFFER_WIDTH, _iWidth,
- GLX_PBUFFER_HEIGHT, _iHeight,
- GLX_LARGEST_PBUFFER, False,
- None
- };
+ dbg_printf("RenderTexture::Initialize: glXVersion1_3Present = TRUE\n");
for (int i=0;i<nConfigs;i++)
{
_hPBuffer = glXCreatePbufferPtr(_pDisplay, fbConfigs[i], pbufAttrib);
True);
if (!_hGLContext)
{
+ dbg_printf("RenderTexture Error: glXCreateContextPtr(_pDisplay, visInfo,..) FAILED! return false\n");
return false;
}
XFree( visInfo );
int iNumFormats;
int attrib = 0;
#endif
- for (int i=0;i<nConfigs;i++)
+ 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, NULL);
+ _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;
}
{
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 (!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
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();
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;
}
*/
bool RenderTexture::_Invalidate()
{
+ dbg_printf( "RenderTexture::_Invalidate() called...\n" );
+
_iNumColorBits[0] = _iNumColorBits[1] =
_iNumColorBits[2] = _iNumColorBits[3] = 0;
_iNumDepthBits = 0;
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;
}
*/
bool RenderTexture::Reset(const char *strMode, ...)
{
+ dbg_printf("RenderTexure:Reset(): with %s\n", strMode);
+
_iWidth = 0; _iHeight = 0;
_bIsTexture = false; _bIsDepthTexture = false,
_bHasARBDepthTexture = true;
_pPoorDepthTexture = 0;
_pixelFormatAttribs.clear();
_pbufferAttribs.clear();
-
- if (IsInitialized() && !_Invalidate())
+ if (IsInitialized())
{
- SG_LOG(SG_GL, SG_ALERT, "RenderTexture::Reset(): failed to invalidate.");
+ 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] =
va_list args;
char strBuffer[256];
va_start(args,strMode);
-#if defined _WIN32 && !defined __CYGWIN__
- _vsnprintf( strBuffer, 256, strMode, args );
-#else
vsnprintf( strBuffer, 256, strMode, args );
-#endif
va_end(args);
_ParseModeString(strBuffer, _pixelFormatAttribs, _pbufferAttribs);
#else
_pixelFormatAttribs.push_back(None);
#endif
+ dbg_printf("RenderTexure:Reset(): returning true.\n");
return true;
}
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 += 3;
continue;
}
- else if (kv.first == "rgb")
+ 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))
{
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))
{
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)
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")
{
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.
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
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
"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;
}
}
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(DEBUG) || defined(_DEBUG)
SG_LOG(SG_GL, SG_ALERT,
- "RenderTexture Error: Render to Texture not supported in "
- "Linux or MacOS\ n");
+ "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))
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() );
+
}
//---------------------------------------------------------------------------
*/
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
#else
Display* dpy = glXGetCurrentDisplay();
int minor = 0, major = 0;
- if (!glXQueryVersion(dpy, &major, &minor))
+ 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"))
- return false;
-
+ {
+ 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 &&
glXCreateContextPtr &&
glXDestroyPbufferPtr &&
- glXQueryDrawablePtr)
+ 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");
glXDestroyPbufferPtr = (glXDestroyPbufferProc)SGLookupFunction("glXDestroyGLXPbufferSGIX");
glXQueryGLXPbufferSGIXPtr = (glXQueryGLXPbufferSGIXProc)SGLookupFunction("glXQueryGLXPbufferSGIX");
-
if (!glXChooseFBConfigPtr ||
!glXCreateGLXPbufferPtr ||
!glXGetVisualFromFBConfigPtr ||
!glXCreateContextWithConfigPtr ||
!glXDestroyPbufferPtr ||
!glXQueryGLXPbufferSGIXPtr)
- return false;
+ {
+ 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)
}
#endif
+ dbg_printf("RenderTexture::_VerifyExtensions: return true.\n");
return true;
}
*/
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)
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;
}
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;
}
}
}
}
+ dbg_printf( "RenderTexture::_InitializeTextures() returning true\n" );
return true;
}
* @fn RenderTexture::_MakeCurrent()
* @brief Makes the RenderTexture's context current
*/
-
bool RenderTexture::_MakeCurrent()
{
#ifdef _WIN32
return false;
}
#else
+static GLXContext last_hGLContext = 0;
if (false == glXMakeCurrent(_pDisplay, _hPBuffer, _hGLContext))
{
+ dbg_printf( "_MakeCurrent: glXMakeCurrent FAILED! returning false\n");
return false;
}
-#endif
+ if ( last_hGLContext != _hGLContext ) {
+ last_hGLContext = _hGLContext;
+ dbg_printf( "_MakeCurrent: glXMakeCurrent set to [%p] SUCCESS! returning true\n", _hGLContext );
+ }
+#endif
return true;
}
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;
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 = "";
{
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
projects / simgear.git / blobdiff