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swr: [rasterizer jitter] fetch support for offsetting VertexID

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Signed-off-by: Tim Rowley <timothy.o.rowley@intel.com>
This commit is contained in:
Tim Rowley 2016-08-05 16:19:10 -06:00
parent 6625fd08db
commit d86e2487a0
2 changed files with 16 additions and 4 deletions
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12
src/gallium/drivers/swr/rasterizer/jitter/fetch_jit.cpp
View file

@ -158,8 +158,18 @@ Function* FetchJit::Create(const FETCH_COMPILE_STATE& fetchState)
default: SWR_ASSERT(0, "Unsupported index type"); vIndices = nullptr; break;
}
Value* vVertexId = vIndices;
if (fetchState.bVertexIDOffsetEnable)
{
// Assuming one of baseVertex or startVertex is 0, so adding both should be functionally correct
Value* vBaseVertex = VBROADCAST(LOAD(mpFetchInfo, { 0, SWR_FETCH_CONTEXT_BaseVertex }));
Value* vStartVertex = VBROADCAST(LOAD(mpFetchInfo, { 0, SWR_FETCH_CONTEXT_StartVertex }));
vVertexId = ADD(vIndices, vBaseVertex);
vVertexId = ADD(vVertexId, vStartVertex);
}
// store out vertex IDs
STORE(vIndices, GEP(mpFetchInfo, { 0, SWR_FETCH_CONTEXT_VertexID }));
STORE(vVertexId, GEP(mpFetchInfo, { 0, SWR_FETCH_CONTEXT_VertexID }));
// store out cut mask if enabled
if (fetchState.bEnableCutIndex)

8
src/gallium/drivers/swr/rasterizer/jitter/fetch_jit.h
View file

@ -100,9 +100,10 @@ struct FETCH_COMPILE_STATE
uint32_t cutIndex{ 0xffffffff };
// Options that effect the JIT'd code
bool bDisableVGATHER; // if enabled, FetchJit will generate loads/shuffles instead of VGATHERs
bool bDisableIndexOOBCheck; // if enabled, FetchJit will exclude index OOB check
bool bEnableCutIndex{ false }; // compares indices with the cut index and returns a cut mask
bool bDisableVGATHER; // If enabled, FetchJit will generate loads/shuffles instead of VGATHERs
bool bDisableIndexOOBCheck; // If enabled, FetchJit will exclude index OOB check
bool bEnableCutIndex{ false }; // Compares indices with the cut index and returns a cut mask
bool bVertexIDOffsetEnable{ false }; // Offset vertexID by StartVertex for non-indexed draws or BaseVertex for indexed draws
FETCH_COMPILE_STATE(bool disableVGATHER = false, bool diableIndexOOBCheck = false):
bDisableVGATHER(disableVGATHER), bDisableIndexOOBCheck(diableIndexOOBCheck){ };
@ -115,6 +116,7 @@ struct FETCH_COMPILE_STATE
if (bDisableIndexOOBCheck != other.bDisableIndexOOBCheck) return false;
if (bEnableCutIndex != other.bEnableCutIndex) return false;
if (cutIndex != other.cutIndex) return false;
if (bVertexIDOffsetEnable != other.bVertexIDOffsetEnable) return false;
for(uint32_t i = 0; i < numAttribs; ++i)
{