diff options
Diffstat (limited to 'src/mesa/main/glformats.c')
| -rw-r--r-- | src/mesa/main/glformats.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c index bec7a9bbb6..d6db318ea1 100644 --- a/src/mesa/main/glformats.c +++ b/src/mesa/main/glformats.c @@ -1240,6 +1240,168 @@ _mesa_get_linear_internalformat(GLenum format) } } +GLint _mesa_get_internalformat_bits(GLenum internal_format) { + switch (internal_format) { + case GL_ALPHA8: + case GL_ALPHA: + case GL_ALPHA_SNORM: + case GL_ALPHA8_SNORM: + case GL_ALPHA8I_EXT: + case GL_ALPHA8UI_EXT: + case GL_INTENSITY: + case GL_INTENSITY8: + case GL_INTENSITY8I_EXT: + case GL_INTENSITY8UI_EXT: + case GL_LUMINANCE: + case GL_LUMINANCE8: + case GL_LUMINANCE8I_EXT: + case GL_LUMINANCE8UI_EXT: + case GL_LUMINANCE4_ALPHA4: + case GL_LUMINANCE6_ALPHA2: + case GL_RED: + case GL_RED_SNORM: + case GL_R8_SNORM: + case GL_R8: + case GL_R8UI: + case GL_R8I: + case GL_R3_G3_B2: + case GL_RGBA2: + case GL_STENCIL_INDEX: + case GL_STENCIL_INDEX8_EXT: + return 8; + + case GL_RGB4: + return 12; + + case GL_RGB5: + return 15; + + case GL_ALPHA16: + case GL_ALPHA16_SNORM: + case GL_ALPHA16F_ARB: + case GL_ALPHA16I_EXT: + case GL_ALPHA16UI_EXT: + case GL_DEPTH_COMPONENT16: + case GL_INTENSITY16: + case GL_INTENSITY16F_ARB: + case GL_INTENSITY16I_EXT: + case GL_INTENSITY16UI_EXT: + case GL_LUMINANCE16: + case GL_LUMINANCE16F_ARB: + case GL_LUMINANCE16I_EXT: + case GL_LUMINANCE16UI_EXT: + case GL_LUMINANCE_ALPHA: + case GL_LUMINANCE8_ALPHA8: + case GL_LUMINANCE_ALPHA8I_EXT: + case GL_LUMINANCE_ALPHA8UI_EXT: + case GL_LUMINANCE12_ALPHA4: + case GL_R16: + case GL_R16F: + case GL_RG: + case GL_RG8: + case GL_RG_SNORM: + case GL_RG8_SNORM: + case GL_RGB5_A1: + case GL_RGBA4: + case GL_R16_SNORM: + case GL_R16UI: + case GL_R16I: + case GL_STENCIL_INDEX16_EXT: + return 16; + + case GL_DEPTH_COMPONENT24: + case GL_LUMINANCE12_ALPHA12: + case GL_RGB: + case GL_RGB8: + case GL_RGB_SNORM: + case GL_RGB8_SNORM: + case GL_RG8UI: + case GL_RG8I: + case GL_SRGB8_EXT: + case GL_RGB8UI_EXT: + case GL_RGB8I_EXT: + return 24; + + case GL_RGB10: + return 30; + + case GL_ALPHA32F_ARB: + case GL_ALPHA32I_EXT: + case GL_ALPHA32UI_EXT: + case GL_DEPTH_COMPONENT: + case GL_DEPTH_COMPONENT32: + case GL_DEPTH_COMPONENT32F: + case GL_DEPTH24_STENCIL8_EXT: + case GL_DEPTH_STENCIL_EXT: + case GL_INTENSITY32F_ARB: + case GL_INTENSITY32I_EXT: + case GL_INTENSITY32UI_EXT: + case GL_LUMINANCE16_ALPHA16: + case GL_LUMINANCE_ALPHA16F_ARB: + case GL_LUMINANCE_ALPHA16I_EXT: + case GL_LUMINANCE_ALPHA16UI_EXT: + case GL_LUMINANCE32F_ARB: + case GL_LUMINANCE32I_EXT: + case GL_LUMINANCE32UI_EXT: + case GL_R32F: + case GL_R32UI: + case GL_R32I: + case GL_RG16: + case GL_RG16_SNORM: + case GL_RG16F: + case GL_RG16UI: + case GL_RG16I: + case GL_RGB10_A2: + case GL_RGB9_E5: + case GL_R11F_G11F_B10F: + case GL_RGBA: + case GL_RGBA8: + case GL_RGBA_SNORM: + case GL_RGBA8_SNORM: + case GL_SRGB8_ALPHA8_EXT: + case GL_RGBA8UI_EXT: + case GL_RGBA8I_EXT: + return 32; + + case GL_RGB12: + return 36; + + case GL_RGB16: + case GL_RGB16_SNORM: + case GL_RGB16F: + case GL_RGB16UI_EXT: + case GL_RGB16I_EXT: + case GL_RGBA12: + return 48; + + case GL_LUMINANCE_ALPHA32F_ARB: + case GL_LUMINANCE_ALPHA32I_EXT: + case GL_LUMINANCE_ALPHA32UI_EXT: + case GL_DEPTH32F_STENCIL8: + case GL_RG32F: + case GL_RG32UI: + case GL_RG32I: + case GL_RGBA16: + case GL_RGBA16_SNORM: + case GL_RGBA16F: + case GL_RGBA16UI_EXT: + case GL_RGBA16I_EXT: + return 64; + + case GL_RGB32F: + case GL_RGB32UI_EXT: + case GL_RGB32I_EXT: + return 96; + + case GL_RGBA32F: + case GL_RGBA32UI_EXT: + case GL_RGBA32I_EXT: + return 128; + + default: + return 0; + } +} /** * Do error checking of format/type combinations for glReadPixels, |