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 #ifndef GrSimpleMesh_DEFINED
9 #define GrSimpleMesh_DEFINED
10
11 #include "src/gpu/GrBuffer.h"
12 #include "src/gpu/GrGpuBuffer.h"
13 #include "src/gpu/GrOpsRenderPass.h"
14
15 class GrPrimitiveProcessor;
16
17 /**
18 * Used to communicate simple (non-instanced, direct) draws from GrOp to GrOpsRenderPass.
19 * TODO: Consider migrating every Op to make the appropriate draw directly on GrOpsRenderPass.
20 */
21 struct GrSimpleMesh {
22 void set(sk_sp<const GrBuffer> vertexBuffer, int vertexCount, int baseVertex);
23 void setIndexed(sk_sp<const GrBuffer> indexBuffer, int indexCount, int baseIndex,
24 uint16_t minIndexValue, uint16_t maxIndexValue, GrPrimitiveRestart,
25 sk_sp<const GrBuffer> vertexBuffer, int baseVertex);
26 void setIndexedPatterned(sk_sp<const GrBuffer> indexBuffer, int indexCount,
27 int patternRepeatCount, int maxPatternRepetitionsInIndexBuffer,
28 sk_sp<const GrBuffer> vertexBuffer, int patternVertexCount,
29 int baseVertex);
30
31 sk_sp<const GrBuffer> fIndexBuffer;
32 int fIndexCount;
33 int fPatternRepeatCount;
34 int fMaxPatternRepetitionsInIndexBuffer;
35 int fBaseIndex;
36 uint16_t fMinIndexValue;
37 uint16_t fMaxIndexValue;
38 GrPrimitiveRestart fPrimitiveRestart = GrPrimitiveRestart::kNo;
39
40 sk_sp<const GrBuffer> fVertexBuffer;
41 int fVertexCount;
42 int fBaseVertex = 0;
43
44 SkDEBUGCODE(bool fIsInitialized = false;)
45 };
46
set(sk_sp<const GrBuffer> vertexBuffer,int vertexCount,int baseVertex)47 inline void GrSimpleMesh::set(sk_sp<const GrBuffer> vertexBuffer, int vertexCount, int baseVertex) {
48 SkASSERT(baseVertex >= 0);
49 fIndexBuffer.reset();
50 fVertexBuffer = std::move(vertexBuffer);
51 fVertexCount = vertexCount;
52 fBaseVertex = baseVertex;
53 SkDEBUGCODE(fIsInitialized = true;)
54 }
55
setIndexed(sk_sp<const GrBuffer> indexBuffer,int indexCount,int baseIndex,uint16_t minIndexValue,uint16_t maxIndexValue,GrPrimitiveRestart primitiveRestart,sk_sp<const GrBuffer> vertexBuffer,int baseVertex)56 inline void GrSimpleMesh::setIndexed(sk_sp<const GrBuffer> indexBuffer, int indexCount,
57 int baseIndex, uint16_t minIndexValue, uint16_t maxIndexValue,
58 GrPrimitiveRestart primitiveRestart,
59 sk_sp<const GrBuffer> vertexBuffer, int baseVertex) {
60 SkASSERT(indexBuffer);
61 SkASSERT(indexCount >= 1);
62 SkASSERT(baseIndex >= 0);
63 SkASSERT(maxIndexValue >= minIndexValue);
64 SkASSERT(baseVertex >= 0);
65 fIndexBuffer = std::move(indexBuffer);
66 fIndexCount = indexCount;
67 fPatternRepeatCount = 0;
68 fBaseIndex = baseIndex;
69 fMinIndexValue = minIndexValue;
70 fMaxIndexValue = maxIndexValue;
71 fPrimitiveRestart = primitiveRestart;
72 fVertexBuffer = std::move(vertexBuffer);
73 fBaseVertex = baseVertex;
74 SkDEBUGCODE(fIsInitialized = true;)
75 }
76
setIndexedPatterned(sk_sp<const GrBuffer> indexBuffer,int indexCount,int patternRepeatCount,int maxPatternRepetitionsInIndexBuffer,sk_sp<const GrBuffer> vertexBuffer,int patternVertexCount,int baseVertex)77 inline void GrSimpleMesh::setIndexedPatterned(
78 sk_sp<const GrBuffer> indexBuffer, int indexCount, int patternRepeatCount,
79 int maxPatternRepetitionsInIndexBuffer, sk_sp<const GrBuffer> vertexBuffer,
80 int patternVertexCount, int baseVertex) {
81 SkASSERT(indexBuffer);
82 SkASSERT(indexCount >= 1);
83 SkASSERT(patternVertexCount >= 1);
84 SkASSERT(patternRepeatCount >= 1);
85 SkASSERT(maxPatternRepetitionsInIndexBuffer >= 1);
86 SkASSERT(baseVertex >= 0);
87 fIndexBuffer = std::move(indexBuffer);
88 fIndexCount = indexCount;
89 fPatternRepeatCount = patternRepeatCount;
90 fVertexCount = patternVertexCount;
91 fMaxPatternRepetitionsInIndexBuffer = maxPatternRepetitionsInIndexBuffer;
92 fPrimitiveRestart = GrPrimitiveRestart::kNo;
93 fVertexBuffer = std::move(vertexBuffer);
94 fBaseVertex = baseVertex;
95 SkDEBUGCODE(fIsInitialized = true;)
96 }
97
98 #endif
99