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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 #include "gl/SkNullGLContext.h" | 9 #include "gl/SkNullGLContext.h" |
10 #include "gl/GrGLInterface.h" | 10 #include "gl/GrGLInterface.h" |
11 #include "GrGLDefines.h" | 11 #include "GrGLDefines.h" |
12 #include "GrGLNoOpInterface.h" | 12 #include "GrGLNoOpInterface.h" |
13 #include "SkTDArray.h" | 13 #include "SkTDArray.h" |
14 #include "SkTLS.h" | 14 #include "SkTLS.h" |
15 | 15 |
16 static SkNullGLContext::ContextState* current_context(); | 16 static SkNullGLContext::ContextState* current_context(); |
17 | 17 |
18 ////////////////////////////////////////////////////////////////////////////////
///////////////// | 18 ////////////////////////////////////////////////////////////////////////////////
///////////////// |
19 | 19 |
20 class BufferObj { | 20 class BufferObj { |
21 public: | 21 public: |
22 SK_DECLARE_INST_COUNT(BufferObj); | 22 |
23 | 23 |
24 BufferObj(GrGLuint id) : fID(id), fDataPtr(NULL), fSize(0), fMapped(false) {
} | 24 BufferObj(GrGLuint id) : fID(id), fDataPtr(NULL), fSize(0), fMapped(false) {
} |
25 ~BufferObj() { SkDELETE_ARRAY(fDataPtr); } | 25 ~BufferObj() { SkDELETE_ARRAY(fDataPtr); } |
26 | 26 |
27 void allocate(GrGLsizeiptr size, const GrGLchar* dataPtr) { | 27 void allocate(GrGLsizeiptr size, const GrGLchar* dataPtr) { |
28 if (fDataPtr) { | 28 if (fDataPtr) { |
29 SkASSERT(0 != fSize); | 29 SkASSERT(0 != fSize); |
30 SkDELETE_ARRAY(fDataPtr); | 30 SkDELETE_ARRAY(fDataPtr); |
31 } | 31 } |
32 | 32 |
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44 private: | 44 private: |
45 GrGLuint fID; | 45 GrGLuint fID; |
46 GrGLchar* fDataPtr; | 46 GrGLchar* fDataPtr; |
47 GrGLsizeiptr fSize; // size in bytes | 47 GrGLsizeiptr fSize; // size in bytes |
48 bool fMapped; | 48 bool fMapped; |
49 }; | 49 }; |
50 | 50 |
51 // This class maintains a sparsely populated array of buffer pointers. | 51 // This class maintains a sparsely populated array of buffer pointers. |
52 class BufferManager { | 52 class BufferManager { |
53 public: | 53 public: |
54 SK_DECLARE_INST_COUNT(BufferManager); | 54 |
55 | 55 |
56 BufferManager() : fFreeListHead(kFreeListEnd) {} | 56 BufferManager() : fFreeListHead(kFreeListEnd) {} |
57 | 57 |
58 ~BufferManager() { | 58 ~BufferManager() { |
59 // NULL out the entries that are really free list links rather than ptrs
before deleting. | 59 // NULL out the entries that are really free list links rather than ptrs
before deleting. |
60 intptr_t curr = fFreeListHead; | 60 intptr_t curr = fFreeListHead; |
61 while (kFreeListEnd != curr) { | 61 while (kFreeListEnd != curr) { |
62 intptr_t next = reinterpret_cast<intptr_t>(fBuffers[SkToS32(curr)]); | 62 intptr_t next = reinterpret_cast<intptr_t>(fBuffers[SkToS32(curr)]); |
63 fBuffers[SkToS32(curr)] = NULL; | 63 fBuffers[SkToS32(curr)] = NULL; |
64 curr = next; | 64 curr = next; |
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110 // the next free slot. The last free slot has a value of kFreeListEnd. | 110 // the next free slot. The last free slot has a value of kFreeListEnd. |
111 intptr_t fFreeListHead; | 111 intptr_t fFreeListHead; |
112 SkTDArray<BufferObj*> fBuffers; | 112 SkTDArray<BufferObj*> fBuffers; |
113 }; | 113 }; |
114 | 114 |
115 /** | 115 /** |
116 * The state object for the null interface. | 116 * The state object for the null interface. |
117 */ | 117 */ |
118 class SkNullGLContext::ContextState : public SkRefCnt { | 118 class SkNullGLContext::ContextState : public SkRefCnt { |
119 public: | 119 public: |
120 SK_DECLARE_INST_COUNT(ContextState); | 120 |
121 | 121 |
122 BufferManager fBufferManager; | 122 BufferManager fBufferManager; |
123 GrGLuint fCurrArrayBuffer; | 123 GrGLuint fCurrArrayBuffer; |
124 GrGLuint fCurrElementArrayBuffer; | 124 GrGLuint fCurrElementArrayBuffer; |
125 GrGLuint fCurrProgramID; | 125 GrGLuint fCurrProgramID; |
126 GrGLuint fCurrShaderID; | 126 GrGLuint fCurrShaderID; |
127 | 127 |
128 | 128 |
129 ContextState() | 129 ContextState() |
130 : fCurrArrayBuffer(0) | 130 : fCurrArrayBuffer(0) |
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553 interface->fCallbackData = reinterpret_cast<GrGLInterfaceCallbackData>(fStat
e); | 553 interface->fCallbackData = reinterpret_cast<GrGLInterfaceCallbackData>(fStat
e); |
554 #endif | 554 #endif |
555 } | 555 } |
556 | 556 |
557 SkNullGLContext::~SkNullGLContext() { | 557 SkNullGLContext::~SkNullGLContext() { |
558 this->teardown(); | 558 this->teardown(); |
559 fState->unref(); | 559 fState->unref(); |
560 } | 560 } |
561 | 561 |
562 void SkNullGLContext::onPlatformMakeCurrent() const { set_current_context(fState
); } | 562 void SkNullGLContext::onPlatformMakeCurrent() const { set_current_context(fState
); } |
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