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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 | 8 |
9 #include "gl/GrGLInterface.h" | 9 #include "gl/GrGLInterface.h" |
10 #include "GrGLDefines.h" | 10 #include "GrGLDefines.h" |
11 #include "SkTDArray.h" | 11 #include "SkTDArray.h" |
12 #include "GrGLNoOpInterface.h" | 12 #include "GrGLNoOpInterface.h" |
13 | 13 |
14 // Functions not declared in GrGLBogusInterface.h (not common with the Debug GL
interface). | 14 // Functions not declared in GrGLBogusInterface.h (not common with the Debug GL
interface). |
15 | 15 |
16 namespace { // added to suppress 'no previous prototype' warning | 16 namespace { // added to suppress 'no previous prototype' warning |
17 | 17 |
18 class GrBufferObj { | 18 class GrBufferObj { |
19 public: | 19 public: |
20 GrBufferObj(GrGLuint id) : fID(id), fDataPtr(NULL), fSize(0), fMapped(false)
{ | 20 GrBufferObj(GrGLuint id) : fID(id), fDataPtr(NULL), fSize(0), fMapped(false)
{ |
21 } | 21 } |
22 ~GrBufferObj() { SkDELETE_ARRAY(fDataPtr); } | 22 ~GrBufferObj() { SkDELETE_ARRAY(fDataPtr); } |
23 | 23 |
24 void allocate(GrGLsizeiptr size, const GrGLchar* dataPtr) { | 24 void allocate(GrGLsizeiptr size, const GrGLchar* dataPtr) { |
25 if (NULL != fDataPtr) { | 25 if (NULL != fDataPtr) { |
26 GrAssert(0 != fSize); | 26 SkASSERT(0 != fSize); |
27 SkDELETE_ARRAY(fDataPtr); | 27 SkDELETE_ARRAY(fDataPtr); |
28 } | 28 } |
29 | 29 |
30 fSize = size; | 30 fSize = size; |
31 fDataPtr = SkNEW_ARRAY(char, size); | 31 fDataPtr = SkNEW_ARRAY(char, size); |
32 } | 32 } |
33 | 33 |
34 GrGLuint id() const { return fID; } | 34 GrGLuint id() const { return fID; } |
35 GrGLchar* dataPtr() { return fDataPtr; } | 35 GrGLchar* dataPtr() { return fDataPtr; } |
36 GrGLsizeiptr size() const { return fSize; } | 36 GrGLsizeiptr size() const { return fSize; } |
37 | 37 |
38 void setMapped(bool mapped) { fMapped = mapped; } | 38 void setMapped(bool mapped) { fMapped = mapped; } |
39 bool mapped() const { return fMapped; } | 39 bool mapped() const { return fMapped; } |
40 | 40 |
41 private: | 41 private: |
42 GrGLuint fID; | 42 GrGLuint fID; |
43 GrGLchar* fDataPtr; | 43 GrGLchar* fDataPtr; |
44 GrGLsizeiptr fSize; // size in bytes | 44 GrGLsizeiptr fSize; // size in bytes |
45 bool fMapped; | 45 bool fMapped; |
46 }; | 46 }; |
47 | 47 |
48 // In debug builds we do asserts that ensure we agree with GL about when a buffe
r | 48 // In debug builds we do asserts that ensure we agree with GL about when a buffe
r |
49 // is mapped. | 49 // is mapped. |
50 static SkTDArray<GrBufferObj*> gBuffers; // slot 0 is reserved for head of free
list | 50 static SkTDArray<GrBufferObj*> gBuffers; // slot 0 is reserved for head of free
list |
51 static GrGLuint gCurrArrayBuffer; | 51 static GrGLuint gCurrArrayBuffer; |
52 static GrGLuint gCurrElementArrayBuffer; | 52 static GrGLuint gCurrElementArrayBuffer; |
53 | 53 |
54 static GrBufferObj* look_up(GrGLuint id) { | 54 static GrBufferObj* look_up(GrGLuint id) { |
55 GrBufferObj* buffer = gBuffers[id]; | 55 GrBufferObj* buffer = gBuffers[id]; |
56 GrAssert(NULL != buffer && buffer->id() == id); | 56 SkASSERT(NULL != buffer && buffer->id() == id); |
57 return buffer; | 57 return buffer; |
58 } | 58 } |
59 | 59 |
60 static GrBufferObj* create_buffer() { | 60 static GrBufferObj* create_buffer() { |
61 if (0 == gBuffers.count()) { | 61 if (0 == gBuffers.count()) { |
62 // slot zero is reserved for the head of the free list | 62 // slot zero is reserved for the head of the free list |
63 *gBuffers.append() = NULL; | 63 *gBuffers.append() = NULL; |
64 } | 64 } |
65 | 65 |
66 GrGLuint id; | 66 GrGLuint id; |
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77 gBuffers[0] = gBuffers[id]; | 77 gBuffers[0] = gBuffers[id]; |
78 | 78 |
79 buffer = SkNEW_ARGS(GrBufferObj, (id)); | 79 buffer = SkNEW_ARGS(GrBufferObj, (id)); |
80 gBuffers[id] = buffer; | 80 gBuffers[id] = buffer; |
81 } | 81 } |
82 | 82 |
83 return buffer; | 83 return buffer; |
84 } | 84 } |
85 | 85 |
86 static void delete_buffer(GrBufferObj* buffer) { | 86 static void delete_buffer(GrBufferObj* buffer) { |
87 GrAssert(gBuffers.count() > 0); | 87 SkASSERT(gBuffers.count() > 0); |
88 | 88 |
89 GrGLuint id = buffer->id(); | 89 GrGLuint id = buffer->id(); |
90 SkDELETE(buffer); | 90 SkDELETE(buffer); |
91 | 91 |
92 // Add this slot to the free list | 92 // Add this slot to the free list |
93 gBuffers[id] = gBuffers[0]; | 93 gBuffers[id] = gBuffers[0]; |
94 gBuffers[0] = SkTCast<GrBufferObj*>((const void*)(intptr_t)id); | 94 gBuffers[0] = SkTCast<GrBufferObj*>((const void*)(intptr_t)id); |
95 } | 95 } |
96 | 96 |
97 GrGLvoid GR_GL_FUNCTION_TYPE nullGLActiveTexture(GrGLenum texture) {} | 97 GrGLvoid GR_GL_FUNCTION_TYPE nullGLActiveTexture(GrGLenum texture) {} |
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193 case GR_GL_ARRAY_BUFFER: | 193 case GR_GL_ARRAY_BUFFER: |
194 id = gCurrArrayBuffer; | 194 id = gCurrArrayBuffer; |
195 break; | 195 break; |
196 case GR_GL_ELEMENT_ARRAY_BUFFER: | 196 case GR_GL_ELEMENT_ARRAY_BUFFER: |
197 id = gCurrElementArrayBuffer; | 197 id = gCurrElementArrayBuffer; |
198 break; | 198 break; |
199 } | 199 } |
200 | 200 |
201 if (id > 0) { | 201 if (id > 0) { |
202 GrBufferObj* buffer = look_up(id); | 202 GrBufferObj* buffer = look_up(id); |
203 GrAssert(!buffer->mapped()); | 203 SkASSERT(!buffer->mapped()); |
204 buffer->setMapped(true); | 204 buffer->setMapped(true); |
205 return buffer->dataPtr(); | 205 return buffer->dataPtr(); |
206 } | 206 } |
207 | 207 |
208 GrAssert(false); | 208 SkASSERT(false); |
209 return NULL; // no buffer bound to target | 209 return NULL; // no buffer bound to target |
210 } | 210 } |
211 | 211 |
212 GrGLboolean GR_GL_FUNCTION_TYPE nullGLUnmapBuffer(GrGLenum target) { | 212 GrGLboolean GR_GL_FUNCTION_TYPE nullGLUnmapBuffer(GrGLenum target) { |
213 GrGLuint id = 0; | 213 GrGLuint id = 0; |
214 switch (target) { | 214 switch (target) { |
215 case GR_GL_ARRAY_BUFFER: | 215 case GR_GL_ARRAY_BUFFER: |
216 id = gCurrArrayBuffer; | 216 id = gCurrArrayBuffer; |
217 break; | 217 break; |
218 case GR_GL_ELEMENT_ARRAY_BUFFER: | 218 case GR_GL_ELEMENT_ARRAY_BUFFER: |
219 id = gCurrElementArrayBuffer; | 219 id = gCurrElementArrayBuffer; |
220 break; | 220 break; |
221 } | 221 } |
222 if (id > 0) { | 222 if (id > 0) { |
223 GrBufferObj* buffer = look_up(id); | 223 GrBufferObj* buffer = look_up(id); |
224 GrAssert(buffer->mapped()); | 224 SkASSERT(buffer->mapped()); |
225 buffer->setMapped(false); | 225 buffer->setMapped(false); |
226 return GR_GL_TRUE; | 226 return GR_GL_TRUE; |
227 } | 227 } |
228 | 228 |
229 GrAlwaysAssert(false); | 229 GrAlwaysAssert(false); |
230 return GR_GL_FALSE; // GR_GL_INVALID_OPERATION; | 230 return GR_GL_FALSE; // GR_GL_INVALID_OPERATION; |
231 } | 231 } |
232 | 232 |
233 GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetBufferParameteriv(GrGLenum target, GrGLenu
m pname, GrGLint* params) { | 233 GrGLvoid GR_GL_FUNCTION_TYPE nullGLGetBufferParameteriv(GrGLenum target, GrGLenu
m pname, GrGLint* params) { |
234 switch (pname) { | 234 switch (pname) { |
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386 interface->fRenderbufferStorageMultisample = noOpGLRenderbufferStorageMu
ltisample; | 386 interface->fRenderbufferStorageMultisample = noOpGLRenderbufferStorageMu
ltisample; |
387 interface->fBlitFramebuffer = noOpGLBlitFramebuffer; | 387 interface->fBlitFramebuffer = noOpGLBlitFramebuffer; |
388 interface->fResolveMultisampleFramebuffer = noOpGLResolveMultisampleFram
ebuffer; | 388 interface->fResolveMultisampleFramebuffer = noOpGLResolveMultisampleFram
ebuffer; |
389 interface->fMapBuffer = nullGLMapBuffer; | 389 interface->fMapBuffer = nullGLMapBuffer; |
390 interface->fUnmapBuffer = nullGLUnmapBuffer; | 390 interface->fUnmapBuffer = nullGLUnmapBuffer; |
391 interface->fBindFragDataLocationIndexed = noOpGLBindFragDataLocationInde
xed; | 391 interface->fBindFragDataLocationIndexed = noOpGLBindFragDataLocationInde
xed; |
392 } | 392 } |
393 glInterface.get()->ref(); | 393 glInterface.get()->ref(); |
394 return glInterface.get(); | 394 return glInterface.get(); |
395 } | 395 } |
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