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authorEduardo Lima Mitev <[email protected]>2016-02-03 13:40:27 +0100
committerEduardo Lima Mitev <[email protected]>2016-03-03 15:14:07 +0100
commitb1755535ecfb5bacf21c3118c359196ad81b5e68 (patch)
treed6c1d91828895985e9202395ba6910ced64ef649 /src/mesa/main
parent87b2de3998fd26767af437ffe512779dc2e8d404 (diff)
mesa/glformats: Add a helper function _mesa_is_srgb_format()
Returns true if the passed format is an sRGB format, false otherwise. Reviewed-by: Dave Airlie <[email protected]>
Diffstat (limited to 'src/mesa/main')
-rw-r--r--src/mesa/main/glformats.c45
-rw-r--r--src/mesa/main/glformats.h3
2 files changed, 48 insertions, 0 deletions
diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c
index 3df845576a9..d29d70d4604 100644
--- a/src/mesa/main/glformats.c
+++ b/src/mesa/main/glformats.c
@@ -1339,6 +1339,51 @@ _mesa_is_compressed_format(const struct gl_context *ctx, GLenum format)
}
/**
+ * Test if the given format represents an sRGB format.
+ * \param format the GL format (can be an internal format)
+ * \return GL_TRUE if format is sRGB, GL_FALSE otherwise
+ */
+GLboolean
+_mesa_is_srgb_format(GLenum format)
+{
+ switch (format) {
+ case GL_SRGB:
+ case GL_SRGB8:
+ case GL_SRGB_ALPHA:
+ case GL_SRGB8_ALPHA8:
+ case GL_COMPRESSED_SRGB:
+ case GL_COMPRESSED_SRGB_ALPHA:
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ case GL_COMPRESSED_SRGB8_ETC2:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
+ case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
+ case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR:
+ return GL_TRUE;
+ default:
+ break;
+ }
+
+ return GL_FALSE;
+}
+
+/**
* Convert various unpack formats to the corresponding base format.
*/
GLenum
diff --git a/src/mesa/main/glformats.h b/src/mesa/main/glformats.h
index b3668556da2..00d2767085d 100644
--- a/src/mesa/main/glformats.h
+++ b/src/mesa/main/glformats.h
@@ -101,6 +101,9 @@ _mesa_is_depth_or_stencil_format(GLenum format);
extern GLboolean
_mesa_is_compressed_format(const struct gl_context *ctx, GLenum format);
+extern GLboolean
+_mesa_is_srgb_format(GLenum format);
+
extern GLenum
_mesa_base_format_to_integer_format(GLenum format);