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mesa: initial EXT_texture_snorm support

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The component ordering of some formats has been been reversed to match
Gallium types.
This commit is contained in:
Marek Olšák
2011-03-18 13:44:51 +01:00
parent 47e3896dfd
commit 0be369975f
10 changed files with 233 additions and 37 deletions
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31
src/mesa/main/teximage.c
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@@ -311,11 +311,40 @@ _mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat )
}
}
if (ctx->Extensions.MESA_texture_signed_rgba) {
if (ctx->Extensions.EXT_texture_snorm) {
switch (internalFormat) {
case GL_RED_SNORM:
case GL_R8_SNORM:
case GL_R16_SNORM:
return GL_RED;
case GL_RG_SNORM:
case GL_RG8_SNORM:
case GL_RG16_SNORM:
return GL_RG;
case GL_RGB_SNORM:
case GL_RGB8_SNORM:
case GL_RGB16_SNORM:
return GL_RGB;
case GL_RGBA_SNORM:
case GL_RGBA8_SNORM:
case GL_RGBA16_SNORM:
return GL_RGBA;
case GL_ALPHA_SNORM:
case GL_ALPHA8_SNORM:
case GL_ALPHA16_SNORM:
return GL_ALPHA;
case GL_LUMINANCE_SNORM:
case GL_LUMINANCE8_SNORM:
case GL_LUMINANCE16_SNORM:
return GL_LUMINANCE;
case GL_LUMINANCE_ALPHA_SNORM:
case GL_LUMINANCE8_ALPHA8_SNORM:
case GL_LUMINANCE16_ALPHA16_SNORM:
return GL_LUMINANCE_ALPHA;
case GL_INTENSITY_SNORM:
case GL_INTENSITY8_SNORM:
case GL_INTENSITY16_SNORM:
return GL_INTENSITY;
default:
; /* fallthrough */
}