swr/rast: more flexible max attribute slots

Ability to allocate space for an arbitrary number (at compile time)
of positions in the vertex layout.

Removes KNOB_NUM_ATTRIBUTES from knobs.h, replaces the VTX slot
number #defines with the SWR_VTX_SLOTS enum (which contains
replacement for NUM_ATTRIBUTES: SWR_VTX_NUM_SLOTS)

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
This commit is contained in:
Tim Rowley 2017-04-10 11:29:45 -05:00
parent 54d42cd976
commit a373f1f27a
7 changed files with 30 additions and 27 deletions

View File

@ -510,7 +510,7 @@ static void StreamOut(
uint32_t soVertsPerPrim = NumVertsPerPrim(pa.binTopology, false);
// The pPrimData buffer is sparse in that we allocate memory for all 32 attributes for each vertex.
uint32_t primDataDwordVertexStride = (KNOB_NUM_ATTRIBUTES * sizeof(float) * 4) / sizeof(uint32_t);
uint32_t primDataDwordVertexStride = (SWR_VTX_NUM_SLOTS * sizeof(float) * 4) / sizeof(uint32_t);
SWR_STREAMOUT_CONTEXT soContext = { 0 };
@ -618,13 +618,13 @@ INLINE static T RoundDownEven(T value)
///
/// attribCount will limit the vector copies to those attribs specified
///
/// note: the stride between vertexes is determinded by KNOB_NUM_ATTRIBUTES
/// note: the stride between vertexes is determinded by SWR_VTX_NUM_SLOTS
///
void PackPairsOfSimdVertexIntoSimd16Vertex(simd16vertex *vertex_simd16, const simdvertex *vertex, uint32_t vertexCount, uint32_t attribCount)
{
SWR_ASSERT(vertex);
SWR_ASSERT(vertex_simd16);
SWR_ASSERT(attribCount <= KNOB_NUM_ATTRIBUTES);
SWR_ASSERT(attribCount <= SWR_VTX_NUM_SLOTS);
simd16vertex temp;
@ -709,7 +709,7 @@ void ProcessStreamIdBuffer(uint32_t stream, uint8_t* pStreamIdBase, uint32_t num
}
curInputByte >>= 2;
}
*pCutBuffer++ = outByte;
}
}
@ -810,7 +810,7 @@ static void GeometryShaderStage(
tlsGsContext.vert[i].attrib[attribSlot] = attrib[i];
}
}
// assemble position
pa.Assemble(VERTEX_POSITION_SLOT, attrib);
for (uint32_t i = 0; i < numVertsPerPrim; ++i)
@ -890,7 +890,7 @@ static void GeometryShaderStage(
uint8_t* pBase = pInstanceBase + instance * bufferInfo.vertexInstanceStride;
uint8_t* pCutBase = pCutBufferBase + instance * bufferInfo.cutInstanceStride;
uint32_t numAttribs = state.feNumAttributes;
for (uint32_t stream = 0; stream < MAX_SO_STREAMS; ++stream)
@ -930,7 +930,7 @@ static void GeometryShaderStage(
tempVertex_simd16,
reinterpret_cast<const simdvertex *>(pBase),
numEmittedVerts,
KNOB_NUM_ATTRIBUTES);
SWR_VTX_NUM_SLOTS);
#endif
#if USE_SIMD16_FRONTEND

View File

@ -34,7 +34,7 @@
// TODO: this belongs in state.h alongside the simdvector definition, but there is a llvm codegen issue
struct simd16vertex
{
simd16vector attrib[KNOB_NUM_ATTRIBUTES];
simd16vector attrib[SWR_VTX_NUM_SLOTS];
};
#endif

View File

@ -97,9 +97,6 @@
// Maximum supported number of active vertex buffer streams
#define KNOB_NUM_STREAMS 32
// Maximum supported number of attributes per vertex
#define KNOB_NUM_ATTRIBUTES 39
// Maximum supported active viewports and scissors
#define KNOB_NUM_VIEWPORTS_SCISSORS 16

View File

@ -510,7 +510,7 @@ __declspec(thread) volatile uint64_t gToss;
static const uint32_t vertsPerTri = 3, componentsPerAttrib = 4;
// try to avoid _chkstk insertions; make this thread local
static THREAD OSALIGNLINE(float) perspAttribsTLS[vertsPerTri * KNOB_NUM_ATTRIBUTES * componentsPerAttrib];
static THREAD OSALIGNLINE(float) perspAttribsTLS[vertsPerTri * SWR_VTX_NUM_SLOTS * componentsPerAttrib];
INLINE
void ComputeEdgeData(int32_t a, int32_t b, EDGE& edge)
@ -1312,7 +1312,7 @@ void RasterizeTriPoint(DRAW_CONTEXT *pDC, uint32_t workerId, uint32_t macroTile,
newWorkDesc.pTriBuffer = &newTriBuffer[0];
// create a copy of the attrib buffer to write our adjusted attribs to
OSALIGNSIMD(float) newAttribBuffer[4 * 3 * KNOB_NUM_ATTRIBUTES];
OSALIGNSIMD(float) newAttribBuffer[4 * 3 * SWR_VTX_NUM_SLOTS];
newWorkDesc.pAttribs = &newAttribBuffer[0];
newWorkDesc.pUserClipBuffer = workDesc.pUserClipBuffer;
@ -1597,7 +1597,7 @@ void RasterizeLine(DRAW_CONTEXT *pDC, uint32_t workerId, uint32_t macroTile, voi
newWorkDesc.pTriBuffer = &newTriBuffer[0];
// create a copy of the attrib buffer to write our adjusted attribs to
OSALIGNSIMD(float) newAttribBuffer[4 * 3 * KNOB_NUM_ATTRIBUTES];
OSALIGNSIMD(float) newAttribBuffer[4 * 3 * SWR_VTX_NUM_SLOTS];
newWorkDesc.pAttribs = &newAttribBuffer[0];
const __m128 vBloat0 = _mm_set_ps(0.5f, -0.5f, -0.5f, 0.5f);

View File

@ -179,19 +179,25 @@ enum SWR_OUTER_TESSFACTOR_ID
/// space for up to 32 attributes, as well as any SGV values generated
/// by the pipeline
/////////////////////////////////////////////////////////////////////////
#define VERTEX_POSITION_SLOT 0
#define VERTEX_ATTRIB_START_SLOT 1
#define VERTEX_ATTRIB_END_SLOT 32
#define VERTEX_RTAI_SLOT 33 // GS writes RenderTargetArrayIndex here
#define VERTEX_PRIMID_SLOT 34 // GS writes PrimId here
#define VERTEX_CLIPCULL_DIST_LO_SLOT 35 // VS writes lower 4 clip/cull dist
#define VERTEX_CLIPCULL_DIST_HI_SLOT 36 // VS writes upper 4 clip/cull dist
#define VERTEX_POINT_SIZE_SLOT 37 // VS writes point size here
#define VERTEX_VIEWPORT_ARRAY_INDEX_SLOT 38
enum SWR_VTX_SLOTS
{
VERTEX_POSITION_SLOT = 0,
VERTEX_POSITION_END_SLOT = 0,
VERTEX_ATTRIB_START_SLOT = ( 1 + VERTEX_POSITION_END_SLOT),
VERTEX_ATTRIB_END_SLOT = (32 + VERTEX_POSITION_END_SLOT),
VERTEX_RTAI_SLOT = (33 + VERTEX_POSITION_END_SLOT), // GS writes RenderTargetArrayIndex here
VERTEX_PRIMID_SLOT = (34 + VERTEX_POSITION_END_SLOT), // GS writes PrimId here
VERTEX_CLIPCULL_DIST_LO_SLOT = (35 + VERTEX_POSITION_END_SLOT), // VS writes lower 4 clip/cull dist
VERTEX_CLIPCULL_DIST_HI_SLOT = (36 + VERTEX_POSITION_END_SLOT), // VS writes upper 4 clip/cull dist
VERTEX_POINT_SIZE_SLOT = (37 + VERTEX_POSITION_END_SLOT), // VS writes point size here
VERTEX_VIEWPORT_ARRAY_INDEX_SLOT = (38 + VERTEX_POSITION_END_SLOT),
SWR_VTX_NUM_SLOTS = VERTEX_VIEWPORT_ARRAY_INDEX_SLOT,
};
// SoAoSoA
struct simdvertex
{
simdvector attrib[KNOB_NUM_ATTRIBUTES];
simdvector attrib[SWR_VTX_NUM_SLOTS];
};
//////////////////////////////////////////////////////////////////////////
@ -226,7 +232,7 @@ struct ScalarAttrib
struct ScalarCPoint
{
ScalarAttrib attrib[KNOB_NUM_ATTRIBUTES];
ScalarAttrib attrib[SWR_VTX_NUM_SLOTS];
};
//////////////////////////////////////////////////////////////////////////

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@ -95,7 +95,7 @@ enum ComponentControl
struct FETCH_COMPILE_STATE
{
uint32_t numAttribs{ 0 };
INPUT_ELEMENT_DESC layout[KNOB_NUM_ATTRIBUTES];
INPUT_ELEMENT_DESC layout[SWR_VTX_NUM_SLOTS];
SWR_FORMAT indexType;
uint32_t cutIndex{ 0xffffffff };

View File

@ -241,7 +241,7 @@ struct StreamOutJit : public Builder
// increment stream and output buffer pointers
// stream verts are always 32*4 dwords apart
pStreamData = GEP(pStreamData, C(KNOB_NUM_ATTRIBUTES * 4));
pStreamData = GEP(pStreamData, C(SWR_VTX_NUM_SLOTS * 4));
// output buffers offset using pitch in buffer state
for (uint32_t b : activeSOBuffers)