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authorGeorge Kyriazis <[email protected]>2017-04-19 13:55:26 -0500
committerGeorge Kyriazis <[email protected]>2017-05-08 21:28:53 -0500
commit909f72e0a2178ede4497c352933c608e6e8dab00 (patch)
treee3e1d9c3ff16d1338a861e890d82df45523e61c7 /src
parent26a9ed6f0fee1ea0a01e99f42e0f9101d3c53ef0 (diff)
swr: fix polygonmode for front==back
Rasterizer core only supports polygonmode front==back. Add logic for populating fillMode for the rasterizer only for that case correctly. Provide enum conversion between mesa enums and core enums. The core renders lines/points as tris. Previously, code would enable stipple for polygonmode != FILL. Modify stipple enable logic so that this works correctly. No regressions in vtk tests. Fixes the following piglit tests: pointsprite gl-1.0-edgeflag-const v2: remove cc stable, and remove "not implemented" assert v3: modified commit message Reviewed-by: Bruce Cherniak <[email protected]>
Diffstat (limited to 'src')
-rw-r--r--src/gallium/drivers/swr/swr_state.cpp8
-rw-r--r--src/gallium/drivers/swr/swr_state.h20
2 files changed, 27 insertions, 1 deletions
diff --git a/src/gallium/drivers/swr/swr_state.cpp b/src/gallium/drivers/swr/swr_state.cpp
index 56b13746d02..12b4e9d6398 100644
--- a/src/gallium/drivers/swr/swr_state.cpp
+++ b/src/gallium/drivers/swr/swr_state.cpp
@@ -1153,6 +1153,10 @@ swr_update_derived(struct pipe_context *pipe,
rastState->slopeScaledDepthBias = 0;
rastState->depthBiasClamp = 0;
}
+
+ /* translate polygon mode, at least for the front==back case */
+ rastState->fillMode = swr_convert_fill_mode(rasterizer->fill_front);
+
struct pipe_surface *zb = fb->zsbuf;
if (zb && swr_resource(zb->texture)->has_depth)
rastState->depthFormat = swr_resource(zb->texture)->swr.format;
@@ -1423,7 +1427,9 @@ swr_update_derived(struct pipe_context *pipe,
/* and points, since we rasterize them as triangles, too */
/* Has to be before fragment shader, since it sets SWR_NEW_FS */
if (p_draw_info) {
- bool new_prim_is_poly = (u_reduced_prim(p_draw_info->mode) == PIPE_PRIM_TRIANGLES);
+ bool new_prim_is_poly =
+ (u_reduced_prim(p_draw_info->mode) == PIPE_PRIM_TRIANGLES) &&
+ (ctx->derived.rastState.fillMode == SWR_FILLMODE_SOLID);
if (new_prim_is_poly != ctx->poly_stipple.prim_is_poly) {
ctx->dirty |= SWR_NEW_FS;
ctx->poly_stipple.prim_is_poly = new_prim_is_poly;
diff --git a/src/gallium/drivers/swr/swr_state.h b/src/gallium/drivers/swr/swr_state.h
index 9a8c4e1311c..7940a960d93 100644
--- a/src/gallium/drivers/swr/swr_state.h
+++ b/src/gallium/drivers/swr/swr_state.h
@@ -376,4 +376,24 @@ swr_convert_prim_topology(const unsigned mode)
return TOP_UNKNOWN;
}
};
+
+/*
+ * convert mesa PIPE_POLYGON_MODE_X to SWR enum SWR_FILLMODE
+ */
+static INLINE enum SWR_FILLMODE
+swr_convert_fill_mode(const unsigned mode)
+{
+ switch(mode) {
+ case PIPE_POLYGON_MODE_FILL:
+ return SWR_FILLMODE_SOLID;
+ case PIPE_POLYGON_MODE_LINE:
+ return SWR_FILLMODE_WIREFRAME;
+ case PIPE_POLYGON_MODE_POINT:
+ return SWR_FILLMODE_POINT;
+ default:
+ assert(0 && "Unknown fillmode");
+ return SWR_FILLMODE_SOLID; // at least do something sensible
+ }
+}
+
#endif