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mesa/multisample: Check sample count using the new driver hook

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Use QueryInternalFormat instead of QuerySamplesForFormat to obtain the
highest supported sample. QuerySamplesForFormat is to be removed.

Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Eduardo Lima Mitev 2015-11-24 22:32:00 +01:00
parent ee31b0b1d0
commit 1f0b2ce8ec
1 changed files with 9 additions and 4 deletions
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13
src/mesa/main/multisample.c
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@ -174,10 +174,15 @@ _mesa_check_sample_count(struct gl_context *ctx, GLenum target,
* for <internalformat> then the error INVALID_OPERATION is generated."
*/
if (ctx->Extensions.ARB_internalformat_query) {
GLint buffer[16];
int count = ctx->Driver.QuerySamplesForFormat(ctx, target,
internalFormat, buffer);
int limit = count ? buffer[0] : -1;
GLint buffer[16] = {-1};
GLint limit;
ctx->Driver.QueryInternalFormat(ctx, target, internalFormat,
GL_SAMPLES, buffer);
/* since the query returns samples sorted in descending order,
* the first element is the greatest supported sample value.
*/
limit = buffer[0];
return samples > limit ? GL_INVALID_OPERATION : GL_NO_ERROR;
}