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swiftshader
Commit 18c9ac49 by Nicolas Capens Committed by Nicolas Capens
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Optimize non-solid polygon rasterization

Instead of using a batch size of 1, divide the batch size by 3 so that we have enough room for 3x more primitives to render. Also use local Triangle data structures to copy the vertices for the extra primitives, instead of adding them to the input batch. Bug: b/139872671 Change-Id: I1bc860d291b53fdd266b6c018ac0c47c876aaa09 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/35588Tested-by: 's avatarNicolas Capens <nicolascapens@google.com> Reviewed-by: 's avatarBen Clayton <bclayton@google.com> Reviewed-by: 's avatarAlexis Hétu <sugoi@google.com> Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
parent 2210f804
Showing with 92 additions and 70 deletions
src/Device/Renderer.cpp
......@@ -217,11 +217,11 @@ namespace sw
break;
case VK_POLYGON_MODE_LINE:
setupPrimitives = &DrawCall::setupWireframeTriangles;
numPrimitivesPerBatch = 1;
numPrimitivesPerBatch /= 3;
break;
case VK_POLYGON_MODE_POINT:
setupPrimitives = &DrawCall::setupPointTriangles;
numPrimitivesPerBatch = 1;
numPrimitivesPerBatch /= 3;
break;
default:
UNSUPPORTED("polygon mode: %d", int(context->polygonMode));
......@@ -631,39 +631,42 @@ namespace sw
int ms = state.multiSample;
int visible = 0;
const Vertex &v0 = triangles[0].v0;
const Vertex &v1 = triangles[0].v1;
const Vertex &v2 = triangles[0].v2;
float d = (v0.position.y * v1.position.x - v0.position.x * v1.position.y) * v2.position.w +
(v0.position.x * v2.position.y - v0.position.y * v2.position.x) * v1.position.w +
(v2.position.x * v1.position.y - v1.position.x * v2.position.y) * v0.position.w;
bool frontFacing = (state.frontFace == VK_FRONT_FACE_COUNTER_CLOCKWISE) ? d > 0.0f : d < 0.0f;
if(state.cullMode & VK_CULL_MODE_FRONT_BIT)
{
if(frontFacing) return 0;
}
if(state.cullMode & VK_CULL_MODE_BACK_BIT)
for(int i = 0; i < count; i++)
{
if(!frontFacing) return 0;
}
const Vertex &v0 = triangles[i].v0;
const Vertex &v1 = triangles[i].v1;
const Vertex &v2 = triangles[i].v2;
// Copy attributes
triangles[1].v0 = v1;
triangles[1].v1 = v2;
triangles[2].v0 = v2;
triangles[2].v1 = v0;
float d = (v0.y * v1.x - v0.x * v1.y) * v2.w +
(v0.x * v2.y - v0.y * v2.x) * v1.w +
(v2.x * v1.y - v1.x * v2.y) * v0.w;
for(int i = 0; i < 3; i++)
{
if(setupLine(*primitives, *triangles, *drawCall))
bool frontFacing = (state.frontFace == VK_FRONT_FACE_COUNTER_CLOCKWISE) ? (d > 0) : (d < 0);
if(state.cullMode & VK_CULL_MODE_FRONT_BIT)
{
primitives += ms;
visible++;
if(frontFacing) continue;
}
if(state.cullMode & VK_CULL_MODE_BACK_BIT)
{
if(!frontFacing) continue;
}
triangles++;
Triangle lines[3];
lines[0].v0 = v0;
lines[0].v1 = v1;
lines[1].v0 = v1;
lines[1].v1 = v2;
lines[2].v0 = v2;
lines[2].v1 = v0;
for(int i = 0; i < 3; i++)
{
if(setupLine(*primitives, lines[i], *drawCall))
{
primitives += ms;
visible++;
}
}
}
return visible;
......@@ -676,37 +679,39 @@ namespace sw
int ms = state.multiSample;
int visible = 0;
const Vertex &v0 = triangles[0].v0;
const Vertex &v1 = triangles[0].v1;
const Vertex &v2 = triangles[0].v2;
float d = (v0.position.y * v1.position.x - v0.position.x * v1.position.y) * v2.position.w +
(v0.position.x * v2.position.y - v0.position.y * v2.position.x) * v1.position.w +
(v2.position.x * v1.position.y - v1.position.x * v2.position.y) * v0.position.w;
bool frontFacing = (state.frontFace == VK_FRONT_FACE_COUNTER_CLOCKWISE) ? d > 0.0f : d < 0.0f;
if(state.cullMode & VK_CULL_MODE_FRONT_BIT)
{
if(frontFacing) return 0;
}
if(state.cullMode & VK_CULL_MODE_BACK_BIT)
for(int i = 0; i < count; i++)
{
if(!frontFacing) return 0;
}
const Vertex &v0 = triangles[i].v0;
const Vertex &v1 = triangles[i].v1;
const Vertex &v2 = triangles[i].v2;
// Copy attributes
triangles[1].v0 = v1;
triangles[2].v0 = v2;
float d = (v0.y * v1.x - v0.x * v1.y) * v2.w +
(v0.x * v2.y - v0.y * v2.x) * v1.w +
(v2.x * v1.y - v1.x * v2.y) * v0.w;
for(int i = 0; i < 3; i++)
{
if(setupPoint(*primitives, *triangles, *drawCall))
bool frontFacing = (state.frontFace == VK_FRONT_FACE_COUNTER_CLOCKWISE) ? (d > 0) : (d < 0);
if(state.cullMode & VK_CULL_MODE_FRONT_BIT)
{
primitives += ms;
visible++;
if(frontFacing) continue;
}
if(state.cullMode & VK_CULL_MODE_BACK_BIT)
{
if(!frontFacing) continue;
}
triangles++;
Triangle points[3];
points[0].v0 = v0;
points[1].v0 = v1;
points[2].v0 = v2;
for(int i = 0; i < 3; i++)
{
if(setupPoint(*primitives, points[i], *drawCall))
{
primitives += ms;
visible++;
}
}
}
return visible;
......
src/Device/Vertex.hpp
......@@ -23,7 +23,19 @@ namespace sw
{
ALIGN(16, struct Vertex
{
float4 position;
union
{
struct
{
float x;
float y;
float z;
float w;
};
float4 position;
};
float pointSize;
int clipFlags;
......
src/Pipeline/SetupRoutine.cpp
......@@ -86,9 +86,9 @@ namespace sw
Return(0);
}
Int w0w1w2 = *Pointer<Int>(v0 + OFFSET(Vertex, position.w)) ^
*Pointer<Int>(v1 + OFFSET(Vertex, position.w)) ^
*Pointer<Int>(v2 + OFFSET(Vertex, position.w));
Int w0w1w2 = *Pointer<Int>(v0 + OFFSET(Vertex, w)) ^
*Pointer<Int>(v1 + OFFSET(Vertex, w)) ^
*Pointer<Int>(v2 + OFFSET(Vertex, w));
A = IfThenElse(w0w1w2 < 0, -A, A);
......@@ -268,9 +268,9 @@ namespace sw
// Sort by minimum y
if(triangle)
{
Float y0 = *Pointer<Float>(v0 + OFFSET(Vertex, position.y));
Float y1 = *Pointer<Float>(v1 + OFFSET(Vertex, position.y));
Float y2 = *Pointer<Float>(v2 + OFFSET(Vertex, position.y));
Float y0 = *Pointer<Float>(v0 + OFFSET(Vertex, y));
Float y1 = *Pointer<Float>(v1 + OFFSET(Vertex, y));
Float y2 = *Pointer<Float>(v2 + OFFSET(Vertex, y));
Float yMin = Min(Min(y0, y1), y2);
......@@ -281,9 +281,9 @@ namespace sw
// Sort by maximum w
if(triangle)
{
Float w0 = *Pointer<Float>(v0 + OFFSET(Vertex, position.w));
Float w1 = *Pointer<Float>(v1 + OFFSET(Vertex, position.w));
Float w2 = *Pointer<Float>(v2 + OFFSET(Vertex, position.w));
Float w0 = *Pointer<Float>(v0 + OFFSET(Vertex, w));
Float w1 = *Pointer<Float>(v1 + OFFSET(Vertex, w));
Float w2 = *Pointer<Float>(v2 + OFFSET(Vertex, w));
Float wMax = Max(Max(w0, w1), w2);
......@@ -292,13 +292,13 @@ namespace sw
}
*Pointer<Float>(primitive + OFFSET(Primitive, pointCoordX)) =
*Pointer<Float>(v0 + OFFSET(Vertex, position.x));
*Pointer<Float>(v0 + OFFSET(Vertex, x));
*Pointer<Float>(primitive + OFFSET(Primitive, pointCoordY)) =
*Pointer<Float>(v0 + OFFSET(Vertex, position.y));
*Pointer<Float>(v0 + OFFSET(Vertex, y));
Float w0 = *Pointer<Float>(v0 + OFFSET(Vertex, position.w));
Float w1 = *Pointer<Float>(v1 + OFFSET(Vertex, position.w));
Float w2 = *Pointer<Float>(v2 + OFFSET(Vertex, position.w));
Float w0 = *Pointer<Float>(v0 + OFFSET(Vertex, w));
Float w1 = *Pointer<Float>(v1 + OFFSET(Vertex, w));
Float w2 = *Pointer<Float>(v2 + OFFSET(Vertex, w));
Float4 w012;
......@@ -443,11 +443,13 @@ namespace sw
for (int interpolant = 0; interpolant < MAX_INTERFACE_COMPONENTS; interpolant++)
{
if (state.gradient[interpolant].Type != SpirvShader::ATTRIBTYPE_UNUSED)
{
setupGradient(primitive, tri, w012, M, v0, v1, v2,
OFFSET(Vertex, v[interpolant]),
OFFSET(Primitive, V[interpolant]),
state.gradient[interpolant].Flat,
!state.gradient[interpolant].NoPerspective, 0);
}
}
Return(1);
......
src/Vulkan/VkPipeline.cpp
......@@ -397,7 +397,8 @@ GraphicsPipeline::GraphicsPipeline(const VkGraphicsPipelineCreateInfo* pCreateIn
const VkPipelineMultisampleStateCreateInfo* multisampleState = pCreateInfo->pMultisampleState;
if(multisampleState)
{
switch (multisampleState->rasterizationSamples) {
switch (multisampleState->rasterizationSamples)
{
case VK_SAMPLE_COUNT_1_BIT:
context.sampleCount = 1;
break;
......@@ -409,7 +410,9 @@ GraphicsPipeline::GraphicsPipeline(const VkGraphicsPipelineCreateInfo* pCreateIn
}
if (multisampleState->pSampleMask)
{
context.sampleMask = multisampleState->pSampleMask[0];
}
context.alphaToCoverage = (multisampleState->alphaToCoverageEnable == VK_TRUE);
......
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