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Side by Side Diff: src/gpu/GrGeometryBuffer.h

Issue 1316233002: Style Change: NULL->nullptr (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: 2015-08-27 (Thursday) 10:25:06 EDT Created 5 years, 3 months ago
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1 1
2 /* 2 /*
3 * Copyright 2011 Google Inc. 3 * Copyright 2011 Google Inc.
4 * 4 *
5 * Use of this source code is governed by a BSD-style license that can be 5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 6 * found in the LICENSE file.
7 */ 7 */
8 8
9 9
10 #ifndef GrGeometryBuffer_DEFINED 10 #ifndef GrGeometryBuffer_DEFINED
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41 * to draw from the buffer while it is mapped. It is an error to call map 41 * to draw from the buffer while it is mapped. It is an error to call map
42 * on an already mapped buffer. It may fail if the backend doesn't support 42 * on an already mapped buffer. It may fail if the backend doesn't support
43 * mapping the buffer. If the buffer is CPU backed then it will always 43 * mapping the buffer. If the buffer is CPU backed then it will always
44 * succeed and is a free operation. Must be matched by an unmap() call. 44 * succeed and is a free operation. Must be matched by an unmap() call.
45 * Currently only one map at a time is supported (no nesting of 45 * Currently only one map at a time is supported (no nesting of
46 * map/unmap). 46 * map/unmap).
47 * 47 *
48 * Note that buffer mapping does not go through GrContext and therefore is 48 * Note that buffer mapping does not go through GrContext and therefore is
49 * not serialized with other operations. 49 * not serialized with other operations.
50 * 50 *
51 * @return a pointer to the data or NULL if the map fails. 51 * @return a pointer to the data or nullptr if the map fails.
52 */ 52 */
53 void* map() { return (fMapPtr = this->onMap()); } 53 void* map() { return (fMapPtr = this->onMap()); }
54 54
55 /** 55 /**
56 * Unmaps the buffer. 56 * Unmaps the buffer.
57 * 57 *
58 * The pointer returned by the previous map call will no longer be valid. 58 * The pointer returned by the previous map call will no longer be valid.
59 */ 59 */
60 void unmap() { 60 void unmap() {
61 SkASSERT(fMapPtr); 61 SkASSERT(fMapPtr);
62 this->onUnmap(); 62 this->onUnmap();
63 fMapPtr = NULL; 63 fMapPtr = nullptr;
64 } 64 }
65 65
66 /** 66 /**
67 * Returns the same ptr that map() returned at time of map or NULL if the 67 * Returns the same ptr that map() returned at time of map or nullptr if the
68 * is not mapped. 68 * is not mapped.
69 * 69 *
70 * @return ptr to mapped buffer data or NULL if buffer is not mapped. 70 * @return ptr to mapped buffer data or nullptr if buffer is not mapped.
71 */ 71 */
72 void* mapPtr() const { return fMapPtr; } 72 void* mapPtr() const { return fMapPtr; }
73 73
74 /** 74 /**
75 Queries whether the buffer has been mapped. 75 Queries whether the buffer has been mapped.
76 76
77 @return true if the buffer is mapped, false otherwise. 77 @return true if the buffer is mapped, false otherwise.
78 */ 78 */
79 bool isMapped() const { return SkToBool(fMapPtr); } 79 bool isMapped() const { return SkToBool(fMapPtr); }
80 80
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94 */ 94 */
95 bool updateData(const void* src, size_t srcSizeInBytes) { 95 bool updateData(const void* src, size_t srcSizeInBytes) {
96 SkASSERT(!this->isMapped()); 96 SkASSERT(!this->isMapped());
97 SkASSERT(srcSizeInBytes <= fGpuMemorySize); 97 SkASSERT(srcSizeInBytes <= fGpuMemorySize);
98 return this->onUpdateData(src, srcSizeInBytes); 98 return this->onUpdateData(src, srcSizeInBytes);
99 } 99 }
100 100
101 protected: 101 protected:
102 GrGeometryBuffer(GrGpu* gpu, size_t gpuMemorySize, bool dynamic, bool cpuBac ked) 102 GrGeometryBuffer(GrGpu* gpu, size_t gpuMemorySize, bool dynamic, bool cpuBac ked)
103 : INHERITED(gpu, kCached_LifeCycle) 103 : INHERITED(gpu, kCached_LifeCycle)
104 , fMapPtr(NULL) 104 , fMapPtr(nullptr)
105 , fGpuMemorySize(gpuMemorySize) 105 , fGpuMemorySize(gpuMemorySize)
106 , fDynamic(dynamic) 106 , fDynamic(dynamic)
107 , fCPUBacked(cpuBacked) {} 107 , fCPUBacked(cpuBacked) {}
108 108
109 private: 109 private:
110 virtual size_t onGpuMemorySize() const { return fGpuMemorySize; } 110 virtual size_t onGpuMemorySize() const { return fGpuMemorySize; }
111 111
112 virtual void* onMap() = 0; 112 virtual void* onMap() = 0;
113 virtual void onUnmap() = 0; 113 virtual void onUnmap() = 0;
114 virtual bool onUpdateData(const void* src, size_t srcSizeInBytes) = 0; 114 virtual bool onUpdateData(const void* src, size_t srcSizeInBytes) = 0;
115 115
116 void* fMapPtr; 116 void* fMapPtr;
117 size_t fGpuMemorySize; 117 size_t fGpuMemorySize;
118 bool fDynamic; 118 bool fDynamic;
119 bool fCPUBacked; 119 bool fCPUBacked;
120 120
121 typedef GrGpuResource INHERITED; 121 typedef GrGpuResource INHERITED;
122 }; 122 };
123 123
124 #endif 124 #endif
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