gallium: add initial support for conservative rasterization

Signed-off-by: Rhys Perry <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index 25f6f74f366..f9c786ae75d 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -314,6 +314,12 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_FENCE_SIGNAL:
    case PIPE_CAP_CONSTBUF0_FLAGS:
    case PIPE_CAP_PACKED_UNIFORMS:
+   case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES:
+   case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
+   case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
+   case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
+   case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
+   case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
       return 0;
    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
       return 4;
@@ -362,6 +368,12 @@ softpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
       return 16.0;
    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
       return 16.0; /* arbitrary */
+   case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
+      return 0.0;
+   case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
+      return 0.0;
+   case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
+      return 0.0;
    }
    /* should only get here on unhandled cases */
    debug_printf("Unexpected PIPE_CAPF %d query\n", param);