diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/swr/rasterizer/jitter/fetch_jit.cpp | 42 |
1 files changed, 37 insertions, 5 deletions
diff --git a/src/gallium/drivers/swr/rasterizer/jitter/fetch_jit.cpp b/src/gallium/drivers/swr/rasterizer/jitter/fetch_jit.cpp index 42b1c3ec5cd..58cafb59af3 100644 --- a/src/gallium/drivers/swr/rasterizer/jitter/fetch_jit.cpp +++ b/src/gallium/drivers/swr/rasterizer/jitter/fetch_jit.cpp @@ -246,6 +246,10 @@ void FetchJit::JitLoadVertices(const FETCH_COMPILE_STATE &fetchState, Value* fet Constant* uwvec = UndefValue::get(VectorType::get(mFP32Ty, 4)); Value* startVertex = LOAD(fetchInfo, {0, SWR_FETCH_CONTEXT_StartVertex}); + Value* startInstance = LOAD(fetchInfo, {0, SWR_FETCH_CONTEXT_StartInstance}); + Value* curInstance = LOAD(fetchInfo, {0, SWR_FETCH_CONTEXT_CurInstance}); + Value* vBaseVertex = VBROADCAST(LOAD(fetchInfo, {0, SWR_FETCH_CONTEXT_BaseVertex})); + curInstance->setName("curInstance"); for(uint32_t nelt = 0; nelt < fetchState.numAttribs; ++nelt) { @@ -258,24 +262,52 @@ void FetchJit::JitLoadVertices(const FETCH_COMPILE_STATE &fetchState, Value* fet vectors.clear(); + Value *vCurIndices; + Value *startOffset; + if(ied.InstanceEnable) + { + Value* stepRate = C(ied.InstanceDataStepRate); + + // prevent a div by 0 for 0 step rate + Value* isNonZeroStep = ICMP_UGT(stepRate, C(0)); + stepRate = SELECT(isNonZeroStep, stepRate, C(1)); + + // calc the current offset into instanced data buffer + Value* calcInstance = UDIV(curInstance, stepRate); + + // if step rate is 0, every instance gets instance 0 + calcInstance = SELECT(isNonZeroStep, calcInstance, C(0)); + + vCurIndices = VBROADCAST(calcInstance); + + startOffset = startInstance; + } + else + { + // offset indices by baseVertex + vCurIndices = ADD(vIndices, vBaseVertex); + + startOffset = startVertex; + } + // load SWR_VERTEX_BUFFER_STATE::pData - Value *stream = LOAD(streams, {ied.StreamIndex, 2}); + Value *stream = LOAD(streams, {ied.StreamIndex, SWR_VERTEX_BUFFER_STATE_pData}); // load SWR_VERTEX_BUFFER_STATE::pitch - Value *stride = LOAD(streams, {ied.StreamIndex, 1}); + Value *stride = LOAD(streams, {ied.StreamIndex, SWR_VERTEX_BUFFER_STATE_pitch}); stride = Z_EXT(stride, mInt64Ty); // load SWR_VERTEX_BUFFER_STATE::size - Value *size = LOAD(streams, {ied.StreamIndex, 3}); + Value *size = LOAD(streams, {ied.StreamIndex, SWR_VERTEX_BUFFER_STATE_size}); size = Z_EXT(size, mInt64Ty); - Value* startVertexOffset = MUL(Z_EXT(startVertex, mInt64Ty), stride); + Value* startVertexOffset = MUL(Z_EXT(startOffset, mInt64Ty), stride); // Load from the stream. for(uint32_t lane = 0; lane < mVWidth; ++lane) { // Get index - Value* index = VEXTRACT(vIndices, C(lane)); + Value* index = VEXTRACT(vCurIndices, C(lane)); index = Z_EXT(index, mInt64Ty); Value* offset = MUL(index, stride); |