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-rw-r--r--src/gallium/drivers/swr/rasterizer/core/frontend.cpp30
-rw-r--r--src/gallium/drivers/swr/rasterizer/core/state.h4
-rw-r--r--src/gallium/drivers/swr/swr_draw.cpp4
3 files changed, 23 insertions, 15 deletions
diff --git a/src/gallium/drivers/swr/rasterizer/core/frontend.cpp b/src/gallium/drivers/swr/rasterizer/core/frontend.cpp
index b9cee0e2c09..157a3180092 100644
--- a/src/gallium/drivers/swr/rasterizer/core/frontend.cpp
+++ b/src/gallium/drivers/swr/rasterizer/core/frontend.cpp
@@ -1475,36 +1475,36 @@ void ProcessDraw(
pSoPrimData = (uint32_t*)pDC->pArena->AllocAligned(4096, 16);
}
- const uint32_t vertexCount = NumVertsPerPrim(state.topology, state.gsState.gsEnable);
+ const uint32_t vertexCount = NumVertsPerPrim(state.topology, true);
+#if USE_SIMD16_FRONTEND
+ uint32_t simdVertexSizeBytes = state.frontendState.vsVertexSize * sizeof(simd16vector);
+#else
+ uint32_t simdVertexSizeBytes = state.frontendState.vsVertexSize * sizeof(simdvector);
+#endif
SWR_ASSERT(vertexCount <= MAX_NUM_VERTS_PER_PRIM);
+ // Compute storage requirements for vertex store
+ // TODO: allocation needs to be rethought for better cut support
+ uint32_t numVerts = vertexCount + 2; // Need extra space for PA state machine
+ uint32_t vertexStoreSize = numVerts * simdVertexSizeBytes;
+
// grow the vertex store for the PA as necessary
- if (gVertexStoreSize < vertexCount)
+ if (gVertexStoreSize < vertexStoreSize)
{
if (pVertexStore != nullptr)
{
AlignedFree(pVertexStore);
}
- while (gVertexStoreSize < vertexCount)
- {
-#if USE_SIMD16_FRONTEND
- gVertexStoreSize += 4; // grow in chunks of 4 simd16vertex
-#else
- gVertexStoreSize += 8; // grow in chunks of 8 simdvertex
-#endif
- }
-
- SWR_ASSERT(gVertexStoreSize <= MAX_NUM_VERTS_PER_PRIM);
-
- pVertexStore = reinterpret_cast<PA_STATE::SIMDVERTEX *>(AlignedMalloc(gVertexStoreSize * sizeof(pVertexStore[0]), 64));
+ pVertexStore = reinterpret_cast<PA_STATE::SIMDVERTEX *>(AlignedMalloc(vertexStoreSize, 64));
+ gVertexStoreSize = vertexStoreSize;
SWR_ASSERT(pVertexStore != nullptr);
}
// choose primitive assembler
- PA_FACTORY<IsIndexedT, IsCutIndexEnabledT> paFactory(pDC, state.topology, work.numVerts, pVertexStore, gVertexStoreSize, SWR_VTX_NUM_SLOTS);
+ PA_FACTORY<IsIndexedT, IsCutIndexEnabledT> paFactory(pDC, state.topology, work.numVerts, pVertexStore, numVerts, state.frontendState.vsVertexSize);
PA_STATE& pa = paFactory.GetPA();
#if USE_SIMD16_FRONTEND
diff --git a/src/gallium/drivers/swr/rasterizer/core/state.h b/src/gallium/drivers/swr/rasterizer/core/state.h
index 4c0c1db412c..0cf9ad65dbc 100644
--- a/src/gallium/drivers/swr/rasterizer/core/state.h
+++ b/src/gallium/drivers/swr/rasterizer/core/state.h
@@ -856,6 +856,10 @@ struct SWR_FRONTEND_STATE
uint32_t bits;
} provokingVertex;
uint32_t topologyProvokingVertex; // provoking vertex for the draw topology
+
+ // Size of a vertex in simdvector units. Should be sized to the
+ // maximum of the input/output of the vertex shader.
+ uint32_t vsVertexSize;
};
//////////////////////////////////////////////////////////////////////////
diff --git a/src/gallium/drivers/swr/swr_draw.cpp b/src/gallium/drivers/swr/swr_draw.cpp
index 03c82a7e510..4e6426d7ec0 100644
--- a/src/gallium/drivers/swr/swr_draw.cpp
+++ b/src/gallium/drivers/swr/swr_draw.cpp
@@ -128,6 +128,10 @@ swr_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
/* Set up frontend state
* XXX setup provokingVertex & topologyProvokingVertex */
SWR_FRONTEND_STATE feState = {0};
+
+ /* XXX this value should be minimized based on the shader set */
+ feState.vsVertexSize = SWR_VTX_NUM_SLOTS;
+
if (ctx->rasterizer->flatshade_first) {
feState.provokingVertex = {1, 0, 0};
} else {