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Add function to identify compressed texture formats

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baldurk
2014-11-29 01:58:11 +00:00
parent 71ef286e51
commit 4d1d816e80
2 changed files with 39 additions and 0 deletions
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renderdoc/driver/gl/gl_resources.cpp
+38
View File
@@ -400,8 +400,46 @@ GLenum GetSizedFormat(const GLHookSet &gl, GLenum target, GLenum internalFormat)
return internalFormat;
}
bool IsCompressedFormat(GLenum internalFormat)
{
switch(internalFormat)
{
// BC1
case eGL_COMPRESSED_RGB_S3TC_DXT1_EXT:
case eGL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
case eGL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
case eGL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
// BC2
case eGL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
case eGL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
// BC3
case eGL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
case eGL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
// BC4
case eGL_COMPRESSED_RED_RGTC1:
case eGL_COMPRESSED_SIGNED_RED_RGTC1:
// BC5
case eGL_COMPRESSED_RG_RGTC2:
case eGL_COMPRESSED_SIGNED_RG_RGTC2:
// BC6
case eGL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB:
case eGL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB:
// BC7
case eGL_COMPRESSED_RGBA_BPTC_UNORM_ARB:
case eGL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB:
return true;
default:
break;
}
return false;
}
bool IsDepthStencilFormat(GLenum internalFormat)
{
if(IsCompressedFormat(internalFormat))
return false;
GLenum fmt = GetBaseFormat(internalFormat);
return (fmt == eGL_DEPTH_COMPONENT || fmt == eGL_STENCIL || fmt == eGL_DEPTH_STENCIL);
renderdoc/driver/gl/gl_resources.h
+1
View File
@@ -36,6 +36,7 @@ GLenum GetBaseFormat(GLenum internalFormat);
GLenum GetDataType(GLenum internalFormat);
GLenum GetSizedFormat(const GLHookSet &gl, GLenum target, GLenum internalFormat);
bool IsCompressedFormat(GLenum internalFormat);
bool IsDepthStencilFormat(GLenum internalFormat);
bool IsUIntFormat(GLenum internalFormat);
bool IsSIntFormat(GLenum internalFormat);