[Mesa-dev] [PATCH 1/7] mesa: handle GL_NONE draw buffers correctly in glClear

[Brian Paul]

On 01/08/2014 10:23 AM, Marek Olšák wrote:
> From: Marek Olšák <marek.olsak at amd.com>
>
> ---
>   src/mesa/main/clear.c | 6 +++++-
>   1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/src/mesa/main/clear.c b/src/mesa/main/clear.c
> index f0b525f..fd5bb35 100644
> --- a/src/mesa/main/clear.c
> +++ b/src/mesa/main/clear.c
> @@ -179,7 +179,11 @@ _mesa_Clear( GLbitfield mask )
>         if (mask & GL_COLOR_BUFFER_BIT) {
>            GLuint i;
>            for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; i++) {
> -            bufferMask |= (1 << ctx->DrawBuffer->_ColorDrawBufferIndexes[i]);
> +            GLint buf = ctx->DrawBuffer->_ColorDrawBufferIndexes[i];
> +
> +            if (buf >= 0) {
> +               bufferMask |= 1 << buf;
> +            }
>            }
>         }
>
>

Reviewed-by: Brian Paul <brianp at vmware.com>