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| author | Brian Paul <[email protected]> | 2017-12-12 20:32:06 -0700 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2017-12-13 08:38:07 -0700 |
| commit | c27a6c45c2f225f5a9966546893252b0435bc371 (patch) | |
| tree | be41fddc2cf40ad421be5f1b3280a3d7b6553a1c | |
| parent | 0f2bd31baf0713c61bb5c4bab1b7408fc7e54ef9 (diff) | |
gallium/docs: document behavior of set_sample_mask()
The sample mask is used even if msaa is not explicity enabled when we
have a framebuffer with multisampled surfaces. That's DX behavior and
what the Radeon drivers do. Not sure about other drivers at this point.
Reviewed-by: Roland Scheidegger <[email protected]>
| -rw-r--r-- | src/gallium/docs/source/context.rst | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/gallium/docs/source/context.rst b/src/gallium/docs/source/context.rst index 9d069b37d7e..0ac73402422 100644 --- a/src/gallium/docs/source/context.rst +++ b/src/gallium/docs/source/context.rst @@ -64,7 +64,10 @@ objects. They all follow simple, one-method binding calls, e.g. * ``set_stencil_ref`` sets the stencil front and back reference values which are used as comparison values in stencil test. * ``set_blend_color`` -* ``set_sample_mask`` +* ``set_sample_mask`` sets the per-context multisample sample mask. Note + that this takes effect even if multisampling is not explicitly enabled if + the frambuffer surface(s) are multisampled. Also, this mask is AND-ed + with the optional fragment shader sample mask output (when emitted). * ``set_min_samples`` sets the minimum number of samples that must be run. * ``set_clip_state`` * ``set_polygon_stipple`` |