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]>

3 files changed, 30 insertions, 0 deletions

diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
index 1d1fbaad607..a24176a8e94 100644
--- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
@@ -229,6 +229,12 @@ nv30_screen_get_param(struct pipe_screen *pscreen, 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_VENDOR_ID:
@@ -270,6 +276,10 @@ nv30_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
       return (eng3d->oclass >= NV40_3D_CLASS) ? 16.0 : 8.0;
    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
       return 15.0;
+   case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
+   case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
+   case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
+      return 0.0;
    default:
       debug_printf("unknown paramf %d\n", param);
       return 0;
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index 6fd2982e3cb..1db112fa6c7 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -281,6 +281,12 @@ nv50_screen_get_param(struct pipe_screen *pscreen, 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_VENDOR_ID:
@@ -398,6 +404,10 @@ nv50_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
       return 16.0f;
    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
       return 4.0f;
+   case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
+   case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
+   case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
+      return 0.0f;
    }
 
    NOUVEAU_ERR("unknown PIPE_CAPF %d\n", param);
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index eb50149b647..37e43f02e36 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -309,6 +309,12 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, 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_VENDOR_ID:
@@ -450,6 +456,10 @@ nvc0_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
       return 16.0f;
    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
       return 15.0f;
+   case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
+   case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
+   case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
+      return 0.0f;
    }
 
    NOUVEAU_ERR("unknown PIPE_CAPF %d\n", param);