diff options
Diffstat (limited to 'src/gallium/include')
| -rw-r--r-- | src/gallium/include/pipe/p_state.h | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h index 2187f5b3677..b59d6b7ae32 100644 --- a/src/gallium/include/pipe/p_state.h +++ b/src/gallium/include/pipe/p_state.h @@ -114,11 +114,29 @@ struct pipe_rasterizer_state * the vertex shader, clipping and viewport processing. Note that * a vertex shader is still needed though, to indicate the mapping * from vertex elements to fragment shader input semantics. + * + * XXX: considered for removal. */ unsigned bypass_vs_clip_and_viewport:1; - unsigned flatshade_first:1; /**< take color attribute from the first vertex of a primitive */ - unsigned gl_rasterization_rules:1; /**< enable tweaks for GL rasterization? */ + /** + * Use the first vertex of a primitive as the provoking vertex for + * flat shading. + */ + unsigned flatshade_first:1; + + /** + * When true, triangle rasterization uses (0.5, 0.5) pixel centers + * for determining pixel ownership. + * + * When false, triangle rasterization uses (0,0) pixel centers for + * determining pixel ownership. + * + * Triangle rasterization always uses a 'top,left' rule for pixel + * ownership, this just alters which point we consider the pixel + * center for that test. + */ + unsigned gl_rasterization_rules:1; float line_width; float point_size; /**< used when no per-vertex size */ |