[Mesa-dev] [PATCH 07/65] mesa/multisample: Check sample count using the new driver hook

[Matt Turner]

On Wed, Feb 3, 2016 at 7:44 AM, Eduardo Lima Mitev <elima at igalia.com> wrote:
> Use QueryInternalFormat instead of QuerySamplesForFormat to obtain the
> highest supported sample. QuerySamplesForFormat is to be removed.
> ---
>  src/mesa/main/multisample.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/src/mesa/main/multisample.c b/src/mesa/main/multisample.c
> index e7783ea..56aa5c3 100644
> --- a/src/mesa/main/multisample.c
> +++ b/src/mesa/main/multisample.c
> @@ -174,10 +174,12 @@ _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};
> +      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 */

*/ goes on its own line in multiline comments in Mesa.