summaryrefslogtreecommitdiffstats
path: root/src/mesa
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/main/formats.c25
-rw-r--r--src/mesa/main/formats.h3
2 files changed, 28 insertions, 0 deletions
diff --git a/src/mesa/main/formats.c b/src/mesa/main/formats.c
index 9bc05093681..d1d84913912 100644
--- a/src/mesa/main/formats.c
+++ b/src/mesa/main/formats.c
@@ -638,6 +638,31 @@ _mesa_is_format_compressed(gl_format format)
/**
+ * Return color encoding for given format.
+ * \return GL_LINEAR or GL_SRGB
+ */
+GLenum
+_mesa_get_format_color_encoding(gl_format format)
+{
+ /* XXX this info should be encoded in gl_format_info */
+ switch (format) {
+ case MESA_FORMAT_SRGB8:
+ case MESA_FORMAT_SRGBA8:
+ case MESA_FORMAT_SARGB8:
+ case MESA_FORMAT_SL8:
+ case MESA_FORMAT_SLA8:
+ case MESA_FORMAT_SRGB_DXT1:
+ case MESA_FORMAT_SRGBA_DXT1:
+ case MESA_FORMAT_SRGBA_DXT3:
+ case MESA_FORMAT_SRGBA_DXT5:
+ return GL_SRGB;
+ default:
+ return GL_LINEAR;
+ }
+}
+
+
+/**
* Return number of bytes needed to store an image of the given size
* in the given format.
*/
diff --git a/src/mesa/main/formats.h b/src/mesa/main/formats.h
index 6aebb85f2be..fcedbe9be21 100644
--- a/src/mesa/main/formats.h
+++ b/src/mesa/main/formats.h
@@ -152,6 +152,9 @@ _mesa_get_format_base_format(gl_format format);
extern GLboolean
_mesa_is_format_compressed(gl_format format);
+extern GLenum
+_mesa_get_format_color_encoding(gl_format format);
+
extern GLuint
_mesa_format_image_size(gl_format format, GLsizei width,
GLsizei height, GLsizei depth);