diff options
| -rw-r--r-- | src/gallium/drivers/swr/rasterizer/core/frontend.cpp | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/gallium/drivers/swr/rasterizer/core/frontend.cpp b/src/gallium/drivers/swr/rasterizer/core/frontend.cpp index 6039be063d6..2809502ee34 100644 --- a/src/gallium/drivers/swr/rasterizer/core/frontend.cpp +++ b/src/gallium/drivers/swr/rasterizer/core/frontend.cpp @@ -1766,9 +1766,16 @@ void BinTriangles( simdscalar vRecipW1 = _simd_set1_ps(1.0f); simdscalar vRecipW2 = _simd_set1_ps(1.0f); - if (!feState.vpTransformDisable) + if (feState.vpTransformDisable) { - // perspective divide + // RHW is passed in directly when VP transform is disabled + vRecipW0 = tri[0].v[3]; + vRecipW1 = tri[1].v[3]; + vRecipW2 = tri[2].v[3]; + } + else + { + // Perspective divide vRecipW0 = _simd_div_ps(_simd_set1_ps(1.0f), tri[0].w); vRecipW1 = _simd_div_ps(_simd_set1_ps(1.0f), tri[1].w); vRecipW2 = _simd_div_ps(_simd_set1_ps(1.0f), tri[2].w); @@ -1785,7 +1792,7 @@ void BinTriangles( tri[1].v[2] = _simd_mul_ps(tri[1].v[2], vRecipW1); tri[2].v[2] = _simd_mul_ps(tri[2].v[2], vRecipW2); - // viewport transform to screen coords + // Viewport transform to screen space coords if (state.gsState.emitsViewportArrayIndex) { viewportTransform<3>(tri, state.vpMatrices, viewportIdx); @@ -1796,7 +1803,7 @@ void BinTriangles( } } - // adjust for pixel center location + // Adjust for pixel center location simdscalar offset = g_pixelOffsets[rastState.pixelLocation]; tri[0].x = _simd_add_ps(tri[0].x, offset); tri[0].y = _simd_add_ps(tri[0].y, offset); |