[Mesa-dev] [RFC 40/63] mesa/formatquery: Added COLOR_ENCODING <pname> query.

[Eduardo Lima Mitev]

From: Antia Puentes <apuentes at igalia.com>

>From the ARB_internalformat_query2 specification:

   "- COLOR_ENCODING: The color encoding for the resource is returned in
      <params>.  Possible values for color buffers are LINEAR or SRGB,
      for linear or sRGB-encoded color components, respectively. For non-color
      formats (such as depth or stencil), or for unsupported resources,
      the value NONE is returned."
---
 src/mesa/main/formatquery.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/mesa/main/formatquery.c b/src/mesa/main/formatquery.c
index f6d0df5..c1a07a9 100644
--- a/src/mesa/main/formatquery.c
+++ b/src/mesa/main/formatquery.c
@@ -1082,7 +1082,13 @@ _mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
       break;
 
    case GL_COLOR_ENCODING:
-      /* @TODO */
+      if (!_mesa_is_color_format(internalformat))
+         goto end;
+
+      if (_mesa_get_linear_internalformat(internalformat) != internalformat)
+         buffer[0] = GL_SRGB;
+      else
+         buffer[0] = GL_LINEAR;
       break;
 
    case GL_SRGB_READ:
-- 
2.5.3