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swr: [rasterizer core] SIMD16 Frontend WIP 

Implement widened VS output for SIMD16

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
This commit is contained in:
Tim Rowley 2017-03-26 15:46:42 -05:00
parent 1bfeb65397
commit cd6c200223
2 changed files with 14 additions and 37 deletions
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42
src/gallium/drivers/swr/rasterizer/core/frontend.cpp
View File

@ -1543,6 +1543,8 @@ void ProcessDraw(
vsContext_lo.pVin = &vin_lo;
vsContext_hi.pVin = &vin_hi;
vsContext_lo.AlternateOffset = 0;
vsContext_hi.AlternateOffset = 1;
SWR_FETCH_CONTEXT fetchInfo_lo = { 0 };
@ -1612,20 +1614,18 @@ void ProcessDraw(
pvCutIndices_hi = &reinterpret_cast<simdmask *>(&pa.GetNextVsIndices())[1];
}
simdvertex vout_lo;
simdvertex vout_hi;
vsContext_lo.pVout = &vout_lo;
vsContext_hi.pVout = &vout_hi;
simd16vertex &vout = pa.GetNextVsOutput();
vsContext_lo.pVout = reinterpret_cast<simdvertex *>(&vout);
vsContext_hi.pVout = reinterpret_cast<simdvertex *>(&vout);
if (i < endVertex)
{
// 1. Execute FS/VS for a single SIMD.
AR_BEGIN(FEFetchShader, pDC->drawId);
state.pfnFetchFunc(fetchInfo_lo, vin_lo);
if ((i + KNOB_SIMD_WIDTH) < endVertex)
if ((i + KNOB_SIMD_WIDTH) < endVertex) // 1/2 of KNOB_SIMD16_WIDTH
{
state.pfnFetchFunc(fetchInfo_hi, vin_hi);
}
@ -1655,35 +1655,9 @@ void ProcessDraw(
AR_BEGIN(FEVertexShader, pDC->drawId);
state.pfnVertexFunc(GetPrivateState(pDC), &vsContext_lo);
// copy SIMD vout_lo to lo part of SIMD16 vout
{
const uint32_t attribCount = sizeof(vout.attrib) / sizeof(vout.attrib[0]);
for (uint32_t i = 0; i < attribCount; i += 1)
{
for (uint32_t j = 0; j < 4; j += 1)
{
vout.attrib[i][j] = _simd16_insert_ps(_simd16_setzero_ps(), vout_lo.attrib[i][j], 0);
}
}
}
if ((i + KNOB_SIMD_WIDTH) < endVertex)
if ((i + KNOB_SIMD_WIDTH) < endVertex) // 1/2 of KNOB_SIMD16_WIDTH
{
state.pfnVertexFunc(GetPrivateState(pDC), &vsContext_hi);
// copy SIMD vout_hi to hi part of SIMD16 vout
{
const uint32_t attribCount = sizeof(vout.attrib) / sizeof(vout.attrib[0]);
for (uint32_t i = 0; i < attribCount; i += 1)
{
for (uint32_t j = 0; j < 4; j += 1)
{
vout.attrib[i][j] = _simd16_insert_ps(vout.attrib[i][j], vout_hi.attrib[i][j], 1);
}
}
}
}
AR_END(FEVertexShader, 0);

9
src/gallium/drivers/swr/rasterizer/core/state.h
View File

@ -201,9 +201,12 @@ struct SWR_VS_CONTEXT
simdvertex* pVin; // IN: SIMD input vertex data store
simdvertex* pVout; // OUT: SIMD output vertex data store
uint32_t InstanceID; // IN: Instance ID, constant across all verts of the SIMD
simdscalari VertexID; // IN: Vertex ID
simdscalari mask; // IN: Active mask for shader
uint32_t InstanceID; // IN: Instance ID, constant across all verts of the SIMD
simdscalari VertexID; // IN: Vertex ID
simdscalari mask; // IN: Active mask for shader
#if USE_SIMD16_FRONTEND
uint32_t AlternateOffset; // IN: amount to offset for interleaving even/odd simd8 in simd16vertex output
#endif
};
/////////////////////////////////////////////////////////////////////////