Re-adding red texture support (by rolling back r3800)
http://code.google.com/p/skia/source/detail?r=3622 - for original review
http://crbug.com/125596 ('M20 windows renderer stability maze') - for issue
git-svn-id: http://skia.googlecode.com/svn/trunk@3802 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/gl/GrGLCaps.cpp b/src/gpu/gl/GrGLCaps.cpp
index d40cf60..797abb4 100644
--- a/src/gpu/gl/GrGLCaps.cpp
+++ b/src/gpu/gl/GrGLCaps.cpp
@@ -33,6 +33,7 @@
fPackFlipYSupport = false;
fTextureUsageSupport = false;
fTexStorageSupport = false;
+ fTextureRedSupport = false;
}
GrGLCaps::GrGLCaps(const GrGLCaps& caps) {
@@ -58,6 +59,7 @@
fPackFlipYSupport = caps.fPackFlipYSupport;
fTextureUsageSupport = caps.fTextureUsageSupport;
fTexStorageSupport = caps.fTexStorageSupport;
+ fTextureRedSupport = caps.fTextureRedSupport;
return *this;
}
@@ -135,6 +137,14 @@
ctxInfo.hasExtension("GL_ARB_texture_storage") ||
ctxInfo.hasExtension("GL_EXT_texture_storage");
+ // ARB_texture_rg is part of OpenGL 3.0
+ if (kDesktop_GrGLBinding == binding) {
+ fTextureRedSupport = version >= GR_GL_VER(3,0) ||
+ ctxInfo.hasExtension("GL_ARB_texture_rg");
+ } else {
+ fTextureRedSupport = ctxInfo.hasExtension("GL_EXT_texture_rg");
+ }
+
this->initFSAASupport(ctxInfo);
this->initStencilFormats(ctxInfo);
}