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mesa: recognize enums GL_COLOR_ATTACHMENT8-31 as valid 

Similar as for AUX1-3, these enums aren't invalid (i.e. -1) but also not
supported by mesa. Returning BUFFER_COUNT causes the proper error to be
returned by ReadBuffer and other functions. This resolves some failures
in

dEQP-GLES31.functional.debug.negative_coverage.get_error.buffer.read_buffer

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Ilia Mirkin 2016-02-12 13:12:09 -05:00
parent a663aa2a37
commit b7e246d89a
1 changed files with 6 additions and 0 deletions
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6
src/mesa/main/buffers.c
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@ -159,6 +159,9 @@ draw_buffer_enum_to_bitmask(const struct gl_context *ctx, GLenum buffer)
case GL_COLOR_ATTACHMENT7_EXT:
return BUFFER_BIT_COLOR7;
default:
/* not an error, but also not supported */
if (buffer >= GL_COLOR_ATTACHMENT8 && buffer <= GL_COLOR_ATTACHMENT31)
return 1 << BUFFER_COUNT;
/* error */
return BAD_MASK;
}
@ -214,6 +217,9 @@ read_buffer_enum_to_index(GLenum buffer)
case GL_COLOR_ATTACHMENT7_EXT:
return BUFFER_COLOR7;
default:
/* not an error, but also not supported */
if (buffer >= GL_COLOR_ATTACHMENT8 && buffer <= GL_COLOR_ATTACHMENT31)
return BUFFER_COUNT;
/* error */
return -1;
}