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mesa/formatquery: expand NUM_SAMPLE_COUNTS OpenGL ES comment 

For ES 3.0 NUM_SAMPLE_COUNTS spec points that some formats will be
always zero. But on ES 3.1 can be different to zero.

The current code is correctly checking exactly against version 3.0,
but the comment only mentions 3.0 spec. It is clearer mentioning both.

v2: better wording on the comment (Ian Romanick)

Acked-by: Eduardo Lima <elima@igalia.com>
Acked-by: Antia Puentes <apuentes@igalia.com>

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Alejandro Piñeiro 2016-05-06 16:13:26 +02:00
parent d10ae20b96
commit 9bdbb9c0e0
1 changed files with 3 additions and 0 deletions
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src/mesa/main/formatquery.c
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@ -877,6 +877,9 @@ _mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
* "Since multisampling is not supported for signed and unsigned
* integer internal formats, the value of NUM_SAMPLE_COUNTS will be
* zero for such formats.
*
* Since OpenGL ES 3.1 adds support for multisampled integer formats, we
* have to check the version for 30 exactly.
*/
if (pname == GL_NUM_SAMPLE_COUNTS && ctx->API == API_OPENGLES2 &&
ctx->Version == 30 && _mesa_is_enum_format_integer(internalformat)) {