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author | marha <marha@users.sourceforge.net> | 2012-12-03 09:16:19 +0100 |
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committer | marha <marha@users.sourceforge.net> | 2012-12-03 09:16:19 +0100 |
commit | 17464545a9abdd19312065a578d1f69a6b0b015f (patch) | |
tree | d39fde94a445ddde95399d4850ffbbbd357a3a19 /mesalib/src/mesa/main/glformats.c | |
parent | eba14241fe23d0561687a1e530a57fa0bfc6ab69 (diff) | |
parent | b8da71ffb17d3d16706db04115e9ba1dd8bc49b9 (diff) | |
download | vcxsrv-17464545a9abdd19312065a578d1f69a6b0b015f.tar.gz vcxsrv-17464545a9abdd19312065a578d1f69a6b0b015f.tar.bz2 vcxsrv-17464545a9abdd19312065a578d1f69a6b0b015f.zip |
Merge remote-tracking branch 'origin/released'
* origin/released:
fontconfig mesa xserver pixman xkeyboard-config git update 3 dec 2012
Diffstat (limited to 'mesalib/src/mesa/main/glformats.c')
-rw-r--r-- | mesalib/src/mesa/main/glformats.c | 117 |
1 files changed, 115 insertions, 2 deletions
diff --git a/mesalib/src/mesa/main/glformats.c b/mesalib/src/mesa/main/glformats.c index ba79f193b..69caef70b 100644 --- a/mesalib/src/mesa/main/glformats.c +++ b/mesalib/src/mesa/main/glformats.c @@ -821,10 +821,10 @@ _mesa_is_compressed_format(struct gl_context *ctx, GLenum format) case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: - return ctx->API == API_OPENGL + return ctx->API == API_OPENGL_COMPAT && ctx->Extensions.EXT_texture_compression_latc; case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: - return ctx->API == API_OPENGL + return ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ATI_texture_compression_3dc; case GL_ETC1_RGB8_OES: return _mesa_is_gles(ctx) @@ -1008,6 +1008,119 @@ _mesa_generic_compressed_format_to_uncompressed_format(GLenum format) /** + * Return the equivalent non-generic internal format. + * This is useful for comparing whether two internal formats are equivalent. + */ +GLenum +_mesa_get_nongeneric_internalformat(GLenum format) +{ + switch (format) { + /* GL 1.1 formats. */ + case 4: + case GL_RGBA: + return GL_RGBA8; + + case 3: + case GL_RGB: + return GL_RGB8; + + case 2: + case GL_LUMINANCE_ALPHA: + return GL_LUMINANCE8_ALPHA8; + + case 1: + case GL_LUMINANCE: + return GL_LUMINANCE8; + + case GL_ALPHA: + return GL_ALPHA8; + + case GL_INTENSITY: + return GL_INTENSITY8; + + /* GL_ARB_texture_rg */ + case GL_RED: + return GL_R8; + + case GL_RG: + return GL_RG8; + + /* GL_EXT_texture_sRGB */ + case GL_SRGB: + return GL_SRGB8; + + case GL_SRGB_ALPHA: + return GL_SRGB8_ALPHA8; + + case GL_SLUMINANCE: + return GL_SLUMINANCE8; + + case GL_SLUMINANCE_ALPHA: + return GL_SLUMINANCE8_ALPHA8; + + /* GL_EXT_texture_snorm */ + case GL_RGBA_SNORM: + return GL_RGBA8_SNORM; + + case GL_RGB_SNORM: + return GL_RGB8_SNORM; + + case GL_RG_SNORM: + return GL_RG8_SNORM; + + case GL_RED_SNORM: + return GL_R8_SNORM; + + case GL_LUMINANCE_ALPHA_SNORM: + return GL_LUMINANCE8_ALPHA8_SNORM; + + case GL_LUMINANCE_SNORM: + return GL_LUMINANCE8_SNORM; + + case GL_ALPHA_SNORM: + return GL_ALPHA8_SNORM; + + case GL_INTENSITY_SNORM: + return GL_INTENSITY8_SNORM; + + default: + return format; + } +} + + +/** + * Convert an sRGB internal format to linear. + */ +GLenum +_mesa_get_linear_internalformat(GLenum format) +{ + switch (format) { + case GL_SRGB: + return GL_RGB; + + case GL_SRGB_ALPHA: + return GL_RGBA; + + case GL_SRGB8: + return GL_RGB8; + + case GL_SRGB8_ALPHA8: + return GL_RGBA8; + + case GL_SLUMINANCE: + return GL_LUMINANCE8; + + case GL_SLUMINANCE_ALPHA: + return GL_LUMINANCE8_ALPHA8; + + default: + return format; + } +} + + +/** * Do error checking of format/type combinations for glReadPixels, * glDrawPixels and glTex[Sub]Image. Note that depending on the format * and type values, we may either generate GL_INVALID_OPERATION or |