1 /*
2 * Copyright 2015 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "src/gpu/ops/GrMeshDrawOp.h"
9
10 #include "src/gpu/GrOpFlushState.h"
11 #include "src/gpu/GrOpsRenderPass.h"
12 #include "src/gpu/GrResourceProvider.h"
13
GrMeshDrawOp(uint32_t classID)14 GrMeshDrawOp::GrMeshDrawOp(uint32_t classID) : INHERITED(classID) {}
15
onPrepare(GrOpFlushState * state)16 void GrMeshDrawOp::onPrepare(GrOpFlushState* state) { this->onPrepareDraws(state); }
17
18 //////////////////////////////////////////////////////////////////////////////
19
PatternHelper(Target * target,GrPrimitiveType primitiveType,size_t vertexStride,sk_sp<const GrBuffer> indexBuffer,int verticesPerRepetition,int indicesPerRepetition,int repeatCount)20 GrMeshDrawOp::PatternHelper::PatternHelper(Target* target, GrPrimitiveType primitiveType,
21 size_t vertexStride, sk_sp<const GrBuffer> indexBuffer,
22 int verticesPerRepetition, int indicesPerRepetition,
23 int repeatCount) {
24 this->init(target, primitiveType, vertexStride, std::move(indexBuffer), verticesPerRepetition,
25 indicesPerRepetition, repeatCount);
26 }
27
init(Target * target,GrPrimitiveType primitiveType,size_t vertexStride,sk_sp<const GrBuffer> indexBuffer,int verticesPerRepetition,int indicesPerRepetition,int repeatCount)28 void GrMeshDrawOp::PatternHelper::init(Target* target, GrPrimitiveType primitiveType,
29 size_t vertexStride, sk_sp<const GrBuffer> indexBuffer,
30 int verticesPerRepetition, int indicesPerRepetition,
31 int repeatCount) {
32 SkASSERT(target);
33 if (!indexBuffer) {
34 return;
35 }
36 sk_sp<const GrBuffer> vertexBuffer;
37 int firstVertex;
38 int vertexCount = verticesPerRepetition * repeatCount;
39 fVertices = target->makeVertexSpace(vertexStride, vertexCount, &vertexBuffer, &firstVertex);
40 if (!fVertices) {
41 SkDebugf("Vertices could not be allocated for patterned rendering.");
42 return;
43 }
44 SkASSERT(vertexBuffer);
45 size_t ibSize = indexBuffer->size();
46 int maxRepetitions = static_cast<int>(ibSize / (sizeof(uint16_t) * indicesPerRepetition));
47 fMesh = target->allocMesh(primitiveType);
48 fMesh->setIndexedPatterned(std::move(indexBuffer), indicesPerRepetition, verticesPerRepetition,
49 repeatCount, maxRepetitions);
50 fMesh->setVertexData(std::move(vertexBuffer), firstVertex);
51 }
52
recordDraw(Target * target,sk_sp<const GrGeometryProcessor> gp) const53 void GrMeshDrawOp::PatternHelper::recordDraw(
54 Target* target, sk_sp<const GrGeometryProcessor> gp) const {
55 target->recordDraw(std::move(gp), fMesh);
56 }
57
recordDraw(Target * target,sk_sp<const GrGeometryProcessor> gp,const GrPipeline::FixedDynamicState * fixedDynamicState) const58 void GrMeshDrawOp::PatternHelper::recordDraw(
59 Target* target, sk_sp<const GrGeometryProcessor> gp,
60 const GrPipeline::FixedDynamicState* fixedDynamicState) const {
61 target->recordDraw(std::move(gp), fMesh, 1, fixedDynamicState, nullptr);
62 }
63
64 //////////////////////////////////////////////////////////////////////////////
65
QuadHelper(Target * target,size_t vertexStride,int quadsToDraw)66 GrMeshDrawOp::QuadHelper::QuadHelper(Target* target, size_t vertexStride, int quadsToDraw) {
67 sk_sp<const GrGpuBuffer> quadIndexBuffer = target->resourceProvider()->refQuadIndexBuffer();
68 if (!quadIndexBuffer) {
69 SkDebugf("Could not get quad index buffer.");
70 return;
71 }
72 this->init(target, GrPrimitiveType::kTriangles, vertexStride, std::move(quadIndexBuffer),
73 kVerticesPerQuad, kIndicesPerQuad, quadsToDraw);
74 }
75
76 //////////////////////////////////////////////////////////////////////////////
77
allocDynamicStateArrays(int numMeshes,int numPrimitiveProcessorTextures,bool allocScissors)78 GrPipeline::DynamicStateArrays* GrMeshDrawOp::Target::allocDynamicStateArrays(
79 int numMeshes, int numPrimitiveProcessorTextures, bool allocScissors) {
80 auto result = this->allocator()->make<GrPipeline::DynamicStateArrays>();
81 if (allocScissors) {
82 result->fScissorRects = this->allocator()->makeArray<SkIRect>(numMeshes);
83 }
84 if (numPrimitiveProcessorTextures) {
85 result->fPrimitiveProcessorTextures =
86 this->allocator()->makeArrayDefault<GrTextureProxy*>(
87 numPrimitiveProcessorTextures * numMeshes);
88 }
89 return result;
90 }
91
makeFixedDynamicState(int numPrimProcTextures)92 GrPipeline::FixedDynamicState* GrMeshDrawOp::Target::makeFixedDynamicState(
93 int numPrimProcTextures) {
94 const GrAppliedClip* clip = this->appliedClip();
95 if ((clip && clip->scissorState().enabled()) || numPrimProcTextures) {
96 const SkIRect& scissor = (clip) ? clip->scissorState().rect() : SkIRect::MakeEmpty();
97 auto fixedDynamicState =
98 this->allocator()->make<GrPipeline::FixedDynamicState>(scissor);
99 if (numPrimProcTextures) {
100 fixedDynamicState->fPrimitiveProcessorTextures =
101 this->allocator()->makeArrayDefault<GrTextureProxy*>(numPrimProcTextures);
102 }
103 return fixedDynamicState;
104 }
105 return nullptr;
106 }
107