diff options
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_buffers.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_buffers.c b/src/mesa/drivers/dri/intel/intel_buffers.c index e7357e78c53..4b8ac364f79 100644 --- a/src/mesa/drivers/dri/intel/intel_buffers.c +++ b/src/mesa/drivers/dri/intel/intel_buffers.c @@ -172,10 +172,15 @@ intel_draw_buffer(GLcontext * ctx, struct gl_framebuffer *fb) return; } - /* - * How many color buffers are we drawing into? + /* How many color buffers are we drawing into? + * + * If there are zero buffers or the buffer is too big, don't configure any + * regions for hardware drawing. We'll fallback to software below. Not + * having regions set makes some of the software fallback paths faster. */ - if (fb->_NumColorDrawBuffers == 0) { + if ((fb->Width > ctx->Const.MaxRenderbufferSize) + || (fb->Height > ctx->Const.MaxRenderbufferSize) + || (fb->_NumColorDrawBuffers == 0)) { /* writing to 0 */ colorRegions[0] = NULL; intel->constant_cliprect = GL_TRUE; |