#include <osg/Texture2D>
#include <osg/Texture3D>
#include <osg/TextureRectangle>
+#include <osg/TextureCubeMap>
#include <osgDB/FileUtils>
#include <boost/lexical_cast.hpp>
if (colorProp)
env->setColor(toOsg(colorProp->getValue<SGVec4d>()));
return env;
- }
+}
void TextureUnitBuilder::buildAttribute(Effect* effect, Pass* pass,
texture = TextureBuilder::buildFromType(effect, type, prop,
options);
}
- catch (BuilderException& e) {
- SG_LOG(SG_INPUT, SG_ALERT, "No image file for texture, using white ");
+ catch (BuilderException& ) {
+ SG_LOG(SG_INPUT, SG_ALERT, "No image file, "
+ << "maybe the reader did not set the filename attribute, "
+ << "using white on " << pass->getName());
texture = StateAttributeFactory::instance()->getWhiteTexture();
}
pass->setTextureAttributeAndModes(unit, texture);
TextureBuilder::Registrar installNoise("noise", new NoiseBuilder);
}
+
+
+// Image names for all sides
+typedef boost::tuple<string, string, string, string, string, string> CubeMapTuple;
+
+CubeMapTuple makeCubeMapTuple(Effect* effect, const SGPropertyNode* props)
+{
+ const SGPropertyNode* ep = 0;
+
+ string positive_x;
+ if ((ep = getEffectPropertyChild(effect, props, "positive-x")))
+ positive_x = ep->getStringValue();
+ string negative_x;
+ if ((ep = getEffectPropertyChild(effect, props, "negative-x")))
+ negative_x = ep->getStringValue();
+ string positive_y;
+ if ((ep = getEffectPropertyChild(effect, props, "positive-y")))
+ positive_y = ep->getStringValue();
+ string negative_y;
+ if ((ep = getEffectPropertyChild(effect, props, "negative-y")))
+ negative_y = ep->getStringValue();
+ string positive_z;
+ if ((ep = getEffectPropertyChild(effect, props, "positive-z")))
+ positive_z = ep->getStringValue();
+ string negative_z;
+ if ((ep = getEffectPropertyChild(effect, props, "negative-z")))
+ negative_z = ep->getStringValue();
+ return CubeMapTuple(positive_x, negative_x, positive_y, negative_y, positive_z, negative_z);
+}
+
+
+class CubeMapBuilder : public TextureBuilder
+{
+public:
+ Texture* build(Effect* effect, const SGPropertyNode*,
+ const SGReaderWriterXMLOptions* options);
+protected:
+ typedef map<CubeMapTuple, ref_ptr<TextureCubeMap> > CubeMap;
+ typedef map<string, ref_ptr<TextureCubeMap> > CrossCubeMap;
+ CubeMap _cubemaps;
+ CrossCubeMap _crossmaps;
+};
+
+// I use this until osg::CopyImage is fixed
+// This one assumes images are the same format and sizes are correct
+void copySubImage(const osg::Image* srcImage, int src_s, int src_t, int width, int height,
+ osg::Image* destImage, int dest_s, int dest_t)
+{
+ for(int row = 0; row<height; ++row)
+ {
+ const unsigned char* srcData = srcImage->data(src_s, src_t+row, 0);
+ unsigned char* destData = destImage->data(dest_s, dest_t+row, 0);
+ memcpy(destData, srcData, (width*destImage->getPixelSizeInBits())/8);
+ }
+}
+
+
+Texture* CubeMapBuilder::build(Effect* effect, const SGPropertyNode* props,
+ const SGReaderWriterXMLOptions* options)
+{
+ // First check that there is a <images> tag
+ const SGPropertyNode* texturesProp = getEffectPropertyChild(effect, props, "images");
+ const SGPropertyNode* crossProp = getEffectPropertyChild(effect, props, "image");
+ if (!texturesProp && !crossProp) {
+ throw BuilderException("no images defined for cube map");
+ return NULL; // This is redundant
+ }
+
+ // Using 6 separate images
+ if(texturesProp) {
+
+ SG_LOG(SG_INPUT, SG_DEBUG, "try 6 images ");
+
+ CubeMapTuple _tuple = makeCubeMapTuple(effect, texturesProp);
+
+ CubeMap::iterator itr = _cubemaps.find(_tuple);
+ if (itr != _cubemaps.end())
+ return itr->second.get();
+
+ TextureCubeMap* cubeTexture = new osg::TextureCubeMap;
+
+ // TODO: Read these from effect file? Maybe these are sane for all cuebmaps?
+ cubeTexture->setFilter(osg::Texture3D::MIN_FILTER, osg::Texture::LINEAR_MIPMAP_LINEAR);
+ cubeTexture->setFilter(osg::Texture3D::MAG_FILTER, osg::Texture::LINEAR);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_R, osg::Texture::CLAMP_TO_EDGE);
+
+ osgDB::ReaderWriter::ReadResult result =
+ osgDB::Registry::instance()->readImage(_tuple.get<0>(), options);
+ if(result.success()) {
+ osg::Image* image = result.getImage();
+ cubeTexture->setImage(TextureCubeMap::POSITIVE_X, image);
+ }
+ result = osgDB::Registry::instance()->readImage(_tuple.get<1>(), options);
+ if(result.success()) {
+ osg::Image* image = result.getImage();
+ cubeTexture->setImage(TextureCubeMap::NEGATIVE_X, image);
+ }
+ result = osgDB::Registry::instance()->readImage(_tuple.get<2>(), options);
+ if(result.success()) {
+ osg::Image* image = result.getImage();
+ cubeTexture->setImage(TextureCubeMap::POSITIVE_Y, image);
+ }
+ result = osgDB::Registry::instance()->readImage(_tuple.get<3>(), options);
+ if(result.success()) {
+ osg::Image* image = result.getImage();
+ cubeTexture->setImage(TextureCubeMap::NEGATIVE_Y, image);
+ }
+ result = osgDB::Registry::instance()->readImage(_tuple.get<4>(), options);
+ if(result.success()) {
+ osg::Image* image = result.getImage();
+ cubeTexture->setImage(TextureCubeMap::POSITIVE_Z, image);
+ }
+ result = osgDB::Registry::instance()->readImage(_tuple.get<5>(), options);
+ if(result.success()) {
+ osg::Image* image = result.getImage();
+ cubeTexture->setImage(TextureCubeMap::NEGATIVE_Z, image);
+ }
+
+ _cubemaps[_tuple] = cubeTexture;
+
+ return cubeTexture;
+ }
+
+
+ // Using 1 cross image
+ else if(crossProp) {
+ SG_LOG(SG_INPUT, SG_DEBUG, "try cross map ");
+
+ std::string texname = crossProp->getStringValue();
+
+ // Try to find existing cube map
+ CrossCubeMap::iterator itr = _crossmaps.find(texname);
+ if (itr != _crossmaps.end())
+ return itr->second.get();
+
+ osgDB::ReaderWriter::ReadResult result =
+ osgDB::Registry::instance()->readImage(texname, options);
+ if(result.success()) {
+ osg::Image* image = result.getImage();
+ image->flipVertical(); // Seems like the image coordinates are somewhat funny, flip to get better ones
+
+ //cubeTexture->setResizeNonPowerOfTwoHint(false);
+
+ // Size of a single image, 4 rows and 3 columns
+ int width = image->s() / 3;
+ int height = image->t() / 4;
+ int depth = image->r();
+
+ TextureCubeMap* cubeTexture = new osg::TextureCubeMap;
+
+ // Copy the 6 sub-images and push them
+ for(int n=0; n<6; n++) {
+
+ SG_LOG(SG_INPUT, SG_DEBUG, "Copying the " << n << "th sub-images and pushing it" );
+
+ osg::ref_ptr<osg::Image> subimg = new osg::Image();
+ subimg->allocateImage(width, height, depth, image->getPixelFormat(), image->getDataType()); // Copy attributes
+
+ // Choose correct image
+ switch(n) {
+ case 0: // Front
+ copySubImage(image, width, 0, width, height, subimg, 0, 0);
+ cubeTexture->setImage(TextureCubeMap::POSITIVE_Y, subimg);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_R, osg::Texture::CLAMP_TO_EDGE);
+ break;
+ case 1: // Left
+ copySubImage(image, 0, height, width, height, subimg, 0, 0);
+ cubeTexture->setImage(TextureCubeMap::NEGATIVE_X, subimg);
+ cubeTexture->setWrap(osg::Texture2D::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_R, osg::Texture::CLAMP_TO_EDGE);
+ break;
+ case 2: // Top
+ copySubImage(image, width, height, width, height, subimg, 0, 0);
+ cubeTexture->setImage(TextureCubeMap::POSITIVE_Z, subimg);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_R, osg::Texture::CLAMP_TO_EDGE);
+ break;
+ case 3: // Right
+ copySubImage(image, width*2, height, width, height, subimg, 0, 0);
+ cubeTexture->setImage(TextureCubeMap::POSITIVE_X, subimg);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_R, osg::Texture::CLAMP_TO_EDGE);
+ break;
+ case 4: // Back
+ copySubImage(image, width, height*2, width, height, subimg, 0, 0);
+ cubeTexture->setImage(TextureCubeMap::NEGATIVE_Y, subimg);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_R, osg::Texture::CLAMP_TO_EDGE);
+ break;
+ case 5: // Bottom
+ copySubImage(image, width, height*3, width, height, subimg, 0, 0);
+ cubeTexture->setImage(TextureCubeMap::NEGATIVE_Z, subimg);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
+ cubeTexture->setWrap(osg::Texture3D::WRAP_R, osg::Texture::CLAMP_TO_EDGE);
+ break;
+ };
+
+ }
+
+ _crossmaps[texname] = cubeTexture;
+
+ return cubeTexture;
+
+ } else {
+ throw BuilderException("Could not load cube cross");
+ }
+ }
+
+ return NULL;
+}
+
+namespace {
+TextureBuilder::Registrar installCubeMap("cubemap", new CubeMapBuilder);
+}
+
EffectNameValue<TexEnvCombine::CombineParam> combineParamInit[] =
{
{"replace", TexEnvCombine::REPLACE},
if (!isAttributeActive(effect, tgenProp))
return 0;
TexGen* result = new TexGen;
- const SGPropertyNode* p = 0;
TexGen::Mode mode = TexGen::OBJECT_LINEAR;
findAttr(tgenModes, getEffectPropertyChild(effect, tgenProp, "mode"), mode);
result->setMode(mode);
projects / simgear.git / blobdiff