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| 1 /* | 1 /* |
| 2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 Google Inc. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #ifndef GrVertices_DEFINED | 8 #ifndef GrVertices_DEFINED |
| 9 #define GrVertices_DEFINED | 9 #define GrVertices_DEFINED |
| 10 | 10 |
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| 45 GrVertices() {} | 45 GrVertices() {} |
| 46 GrVertices(const GrVertices& di) { (*this) = di; } | 46 GrVertices(const GrVertices& di) { (*this) = di; } |
| 47 GrVertices& operator =(const GrVertices& di); | 47 GrVertices& operator =(const GrVertices& di); |
| 48 | 48 |
| 49 void init(GrPrimitiveType primType, const GrVertexBuffer* vertexBuffer, int
startVertex, | 49 void init(GrPrimitiveType primType, const GrVertexBuffer* vertexBuffer, int
startVertex, |
| 50 int vertexCount) { | 50 int vertexCount) { |
| 51 SkASSERT(vertexBuffer); | 51 SkASSERT(vertexBuffer); |
| 52 SkASSERT(vertexCount); | 52 SkASSERT(vertexCount); |
| 53 SkASSERT(startVertex >= 0); | 53 SkASSERT(startVertex >= 0); |
| 54 fPrimitiveType = primType; | 54 fPrimitiveType = primType; |
| 55 fVertexBuffer.reset(vertexBuffer); | 55 fVertexBuffer.reset(vertexBuffer, nullptr); |
| 56 fIndexBuffer.reset(nullptr); | 56 fIndexBuffer.reset(nullptr, nullptr); |
| 57 fStartVertex = startVertex; | 57 fStartVertex = startVertex; |
| 58 fStartIndex = 0; | 58 fStartIndex = 0; |
| 59 fVertexCount = vertexCount; | 59 fVertexCount = vertexCount; |
| 60 fIndexCount = 0; | 60 fIndexCount = 0; |
| 61 fInstanceCount = 0; | 61 fInstanceCount = 0; |
| 62 fVerticesPerInstance = 0; | 62 fVerticesPerInstance = 0; |
| 63 fIndicesPerInstance = 0; | 63 fIndicesPerInstance = 0; |
| 64 fMaxInstancesPerDraw = 0; | 64 fMaxInstancesPerDraw = 0; |
| 65 } | 65 } |
| 66 | 66 |
| 67 void initIndexed(GrPrimitiveType primType, | 67 void initIndexed(GrPrimitiveType primType, |
| 68 const GrVertexBuffer* vertexBuffer, | 68 const GrVertexBuffer* vertexBuffer, |
| 69 const GrIndexBuffer* indexBuffer, | 69 const GrIndexBuffer* indexBuffer, |
| 70 int startVertex, | 70 int startVertex, |
| 71 int startIndex, | 71 int startIndex, |
| 72 int vertexCount, | 72 int vertexCount, |
| 73 int indexCount) { | 73 int indexCount) { |
| 74 SkASSERT(indexBuffer); | 74 SkASSERT(indexBuffer); |
| 75 SkASSERT(vertexBuffer); | 75 SkASSERT(vertexBuffer); |
| 76 SkASSERT(indexCount); | 76 SkASSERT(indexCount); |
| 77 SkASSERT(vertexCount); | 77 SkASSERT(vertexCount); |
| 78 SkASSERT(startIndex >= 0); | 78 SkASSERT(startIndex >= 0); |
| 79 SkASSERT(startVertex >= 0); | 79 SkASSERT(startVertex >= 0); |
| 80 fPrimitiveType = primType; | 80 fPrimitiveType = primType; |
| 81 fVertexBuffer.reset(vertexBuffer); | 81 fVertexBuffer.reset(vertexBuffer, NULL); |
| 82 fIndexBuffer.reset(indexBuffer); | 82 fIndexBuffer.reset(indexBuffer, NULL); |
| 83 fStartVertex = startVertex; | 83 fStartVertex = startVertex; |
| 84 fStartIndex = startIndex; | 84 fStartIndex = startIndex; |
| 85 fVertexCount = vertexCount; | 85 fVertexCount = vertexCount; |
| 86 fIndexCount = indexCount; | 86 fIndexCount = indexCount; |
| 87 fInstanceCount = 0; | 87 fInstanceCount = 0; |
| 88 fVerticesPerInstance = 0; | 88 fVerticesPerInstance = 0; |
| 89 fIndicesPerInstance = 0; | 89 fIndicesPerInstance = 0; |
| 90 fMaxInstancesPerDraw = 0; | 90 fMaxInstancesPerDraw = 0; |
| 91 } | 91 } |
| 92 | 92 |
| 93 | 93 |
| 94 /** Variation of the above that may be used when the total number of instanc
es may exceed | 94 /** Variation of the above that may be used when the total number of instanc
es may exceed |
| 95 the number of instances supported by the index buffer. To be used with | 95 the number of instances supported by the index buffer. To be used with |
| 96 nextInstances() to draw in max-sized batches.*/ | 96 nextInstances() to draw in max-sized batches.*/ |
| 97 void initInstanced(GrPrimitiveType primType, | 97 void initInstanced(GrPrimitiveType primType, |
| 98 const GrVertexBuffer* vertexBuffer, | 98 const GrVertexBuffer* vertexBuffer, |
| 99 const GrIndexBuffer* indexBuffer, | 99 const GrIndexBuffer* indexBuffer, |
| 100 int startVertex, | 100 int startVertex, |
| 101 int verticesPerInstance, | 101 int verticesPerInstance, |
| 102 int indicesPerInstance, | 102 int indicesPerInstance, |
| 103 int instanceCount, | 103 int instanceCount, |
| 104 int maxInstancesPerDraw) { | 104 int maxInstancesPerDraw) { |
| 105 SkASSERT(vertexBuffer); | 105 SkASSERT(vertexBuffer); |
| 106 SkASSERT(indexBuffer); | 106 SkASSERT(indexBuffer); |
| 107 SkASSERT(instanceCount); | 107 SkASSERT(instanceCount); |
| 108 SkASSERT(verticesPerInstance); | 108 SkASSERT(verticesPerInstance); |
| 109 SkASSERT(indicesPerInstance); | 109 SkASSERT(indicesPerInstance); |
| 110 SkASSERT(startVertex >= 0); | 110 SkASSERT(startVertex >= 0); |
| 111 fPrimitiveType = primType; | 111 fPrimitiveType = primType; |
| 112 fVertexBuffer.reset(vertexBuffer); | 112 fVertexBuffer.reset(vertexBuffer, NULL); |
| 113 fIndexBuffer.reset(indexBuffer); | 113 fIndexBuffer.reset(indexBuffer, NULL); |
| 114 fStartVertex = startVertex; | 114 fStartVertex = startVertex; |
| 115 fStartIndex = 0; | 115 fStartIndex = 0; |
| 116 fVerticesPerInstance = verticesPerInstance; | 116 fVerticesPerInstance = verticesPerInstance; |
| 117 fIndicesPerInstance = indicesPerInstance; | 117 fIndicesPerInstance = indicesPerInstance; |
| 118 fInstanceCount = instanceCount; | 118 fInstanceCount = instanceCount; |
| 119 fVertexCount = instanceCount * fVerticesPerInstance; | 119 fVertexCount = instanceCount * fVerticesPerInstance; |
| 120 fIndexCount = instanceCount * fIndicesPerInstance; | 120 fIndexCount = instanceCount * fIndicesPerInstance; |
| 121 fMaxInstancesPerDraw = maxInstancesPerDraw; | 121 fMaxInstancesPerDraw = maxInstancesPerDraw; |
| 122 } | 122 } |
| 123 | 123 |
| 124 | 124 |
| 125 /** These return 0 if initInstanced was not used to initialize the GrVertice
s. */ | 125 /** These return 0 if initInstanced was not used to initialize the GrVertice
s. */ |
| 126 int verticesPerInstance() const { return fVerticesPerInstance; } | 126 int verticesPerInstance() const { return fVerticesPerInstance; } |
| 127 int indicesPerInstance() const { return fIndicesPerInstance; } | 127 int indicesPerInstance() const { return fIndicesPerInstance; } |
| 128 int instanceCount() const { return fInstanceCount; } | 128 int instanceCount() const { return fInstanceCount; } |
| 129 | 129 |
| 130 bool isInstanced() const { return fInstanceCount > 0; } | 130 bool isInstanced() const { return fInstanceCount > 0; } |
| 131 | 131 |
| 132 class Iterator { | 132 class Iterator { |
| 133 public: | 133 public: |
| 134 const GrNonInstancedVertices* init(const GrVertices& vertices) { | 134 const GrNonInstancedVertices* init(const GrVertices& vertices) { |
| 135 fVertices = &vertices; | 135 fVertices = &vertices; |
| 136 if (vertices.fInstanceCount <= vertices.fMaxInstancesPerDraw) { | 136 if (vertices.fInstanceCount <= vertices.fMaxInstancesPerDraw) { |
| 137 fInstancesRemaining = 0; | 137 fInstancesRemaining = 0; |
| 138 // Note, this also covers the non-instanced case! | 138 // Note, this also covers the non-instanced case! |
| 139 return &vertices; | 139 return &vertices; |
| 140 } | 140 } |
| 141 SkASSERT(vertices.isInstanced()); | 141 SkASSERT(vertices.isInstanced()); |
| 142 fInstanceBatch.fIndexBuffer.reset(vertices.fIndexBuffer.get()); | 142 fInstanceBatch.fIndexBuffer.reset(vertices.fIndexBuffer.get(), NULL)
; |
| 143 fInstanceBatch.fVertexBuffer.reset(vertices.fVertexBuffer.get()); | 143 fInstanceBatch.fVertexBuffer.reset(vertices.fVertexBuffer.get(), NUL
L); |
| 144 fInstanceBatch.fIndexCount = vertices.fMaxInstancesPerDraw * | 144 fInstanceBatch.fIndexCount = vertices.fMaxInstancesPerDraw * |
| 145 vertices.fIndicesPerInstance; | 145 vertices.fIndicesPerInstance; |
| 146 fInstanceBatch.fVertexCount = vertices.fMaxInstancesPerDraw * | 146 fInstanceBatch.fVertexCount = vertices.fMaxInstancesPerDraw * |
| 147 vertices.fVerticesPerInstance; | 147 vertices.fVerticesPerInstance; |
| 148 fInstanceBatch.fPrimitiveType = vertices.fPrimitiveType; | 148 fInstanceBatch.fPrimitiveType = vertices.fPrimitiveType; |
| 149 fInstanceBatch.fStartIndex = vertices.fStartIndex; | 149 fInstanceBatch.fStartIndex = vertices.fStartIndex; |
| 150 fInstanceBatch.fStartVertex = vertices.fStartVertex; | 150 fInstanceBatch.fStartVertex = vertices.fStartVertex; |
| 151 fInstancesRemaining = vertices.fInstanceCount - vertices.fMaxInstanc
esPerDraw; | 151 fInstancesRemaining = vertices.fInstanceCount - vertices.fMaxInstanc
esPerDraw; |
| 152 return &fInstanceBatch; | 152 return &fInstanceBatch; |
| 153 } | 153 } |
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| 170 }; | 170 }; |
| 171 | 171 |
| 172 private: | 172 private: |
| 173 int fInstanceCount; | 173 int fInstanceCount; |
| 174 int fVerticesPerInstance; | 174 int fVerticesPerInstance; |
| 175 int fIndicesPerInstance; | 175 int fIndicesPerInstance; |
| 176 int fMaxInstancesPerDraw; | 176 int fMaxInstancesPerDraw; |
| 177 }; | 177 }; |
| 178 | 178 |
| 179 #endif | 179 #endif |
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