diff options
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_fbo.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c b/src/mesa/drivers/dri/intel/intel_fbo.c index a53985b1893..613287f6d3d 100644 --- a/src/mesa/drivers/dri/intel/intel_fbo.c +++ b/src/mesa/drivers/dri/intel/intel_fbo.c @@ -202,7 +202,15 @@ quantize_num_samples(struct intel_context *intel, unsigned num_samples) return 0; return 0; default: - /* MSAA unsupported */ + /* MSAA unsupported. However, a careful reading of + * EXT_framebuffer_multisample reveals that we need to permit + * num_samples to be 1 (since num_samples is permitted to be as high as + * GL_MAX_SAMPLES, and GL_MAX_SAMPLES must be at least 1). Since + * platforms before Gen6 don't support MSAA, this is safe, because + * multisampling won't happen anyhow. + */ + if (num_samples > 0) + return 1; return 0; } } |