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swr/rast: Be more explicit when fetching next component

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Use a new function to denote that we want to get offset to next component
and hide the fact that GEP is used underneath.

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
This commit is contained in:
George Kyriazis 2018-02-07 01:02:00 -06:00
parent da77eb55d5
commit 74e8bb4a22
2 changed files with 11 additions and 4 deletions
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13
src/gallium/drivers/swr/rasterizer/jitter/builder_mem.cpp
View file

@ -129,6 +129,11 @@ namespace SwrJit
return vResult;
}
Value* Builder::OFFSET_TO_NEXT_COMPONENT(Value* base, Constant *offset)
{
return GEP(base, offset);
}
//////////////////////////////////////////////////////////////////////////
/// @brief Generate a masked gather operation in LLVM IR. If not
/// supported on the underlying platform, emulate it with loads
@ -396,7 +401,7 @@ namespace SwrJit
if (info.numComps > 2)
{
// offset base to the next components(zw) in the vertex to gather
pSrcBase = GEP(pSrcBase, C((char)4));
pSrcBase = OFFSET_TO_NEXT_COMPONENT(pSrcBase, C((intptr_t)4));
vGatherResult[1] = GATHERPS(vGatherMaskedVal, pSrcBase, byteOffsets, vMask);
// e.g. result of second 8x32bit integer gather for 16bit components
@ -429,7 +434,7 @@ namespace SwrJit
vGatherComponents[swizzleIndex] = GATHERPS(vGatherComponents[swizzleIndex], pSrcBase, byteOffsets, vMask);
// offset base to the next component to gather
pSrcBase = GEP(pSrcBase, C((char)4));
pSrcBase = OFFSET_TO_NEXT_COMPONENT(pSrcBase, C((intptr_t)4));
}
}
break;
@ -474,7 +479,7 @@ namespace SwrJit
if (info.numComps > 2)
{
// offset base to the next components(zw) in the vertex to gather
pSrcBase = GEP(pSrcBase, C((char)4));
pSrcBase = OFFSET_TO_NEXT_COMPONENT(pSrcBase, C((intptr_t)4));
vGatherResult[1] = GATHERDD(vGatherMaskedVal, pSrcBase, byteOffsets, vMask);
// e.g. result of second 8x32bit integer gather for 16bit components
@ -508,7 +513,7 @@ namespace SwrJit
vGatherComponents[swizzleIndex] = GATHERDD(vGatherComponents[swizzleIndex], pSrcBase, byteOffsets, vMask);
// offset base to the next component to gather
pSrcBase = GEP(pSrcBase, C((char)4));
pSrcBase = OFFSET_TO_NEXT_COMPONENT(pSrcBase, C((intptr_t)4));
}
}
break;

2
src/gallium/drivers/swr/rasterizer/jitter/builder_mem.h
View file

@ -44,6 +44,8 @@ Value *MASKLOADD(Value* src, Value* mask);
void Gather4(const SWR_FORMAT format, Value* pSrcBase, Value* byteOffsets,
Value* mask, Value* vGatherComponents[], bool bPackedOutput);
virtual Value* OFFSET_TO_NEXT_COMPONENT(Value* base, Constant *offset);
virtual Value *GATHERPS(Value *src, Value *pBase, Value *indices, Value *mask, uint8_t scale = 1);
Value *GATHERPS_16(Value *src, Value *pBase, Value *indices, Value *mask, uint8_t scale = 1);