+ return;
+ }
+ else {
+ switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) {
+ case BUFFER_FRONT_LEFT:
+ case BUFFER_BACK_LEFT:
+ FALLBACK( rmesa, R128_FALLBACK_DRAW_BUFFER, GL_FALSE );
+ break;
+ default:
+ /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
+ FALLBACK( rmesa, R128_FALLBACK_DRAW_BUFFER, GL_TRUE );
+ break;
+ }