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1 /* | 2 /* |
2 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
3 * | 4 * |
4 * 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 |
5 * found in the LICENSE file. | 6 * found in the LICENSE file. |
6 */ | 7 */ |
7 | 8 |
8 #include <GL/osmesa.h> | 9 #include <GL/osmesa.h> |
9 | 10 |
10 #include "gl/mesa/SkMesaGLContext.h" | 11 #include "gl/mesa/GLContext_mesa.h" |
11 #include "gl/GrGLDefines.h" | 12 #include "gl/GrGLDefines.h" |
12 | 13 |
| 14 #include "gl/GrGLAssembleInterface.h" |
| 15 #include "gl/GrGLUtil.h" |
| 16 #include "osmesa_wrapper.h" |
| 17 |
| 18 namespace { |
| 19 |
| 20 static GrGLFuncPtr osmesa_get(void* ctx, const char name[]) { |
| 21 SkASSERT(nullptr == ctx); |
| 22 SkASSERT(OSMesaGetCurrentContext()); |
| 23 return OSMesaGetProcAddress(name); |
| 24 } |
| 25 |
| 26 static const GrGLInterface* create_mesa_interface() { |
| 27 if (nullptr == OSMesaGetCurrentContext()) { |
| 28 return nullptr; |
| 29 } |
| 30 return GrGLAssembleInterface(nullptr, osmesa_get); |
| 31 } |
| 32 |
13 static const GrGLint gBOGUS_SIZE = 16; | 33 static const GrGLint gBOGUS_SIZE = 16; |
14 | 34 |
15 SkMesaGLContext::SkMesaGLContext() | 35 class MesaGLContext : public sk_gpu_test::GLContext { |
16 : fContext(static_cast<Context>(0)) | 36 private: |
17 , fImage(nullptr) { | 37 typedef intptr_t Context; |
| 38 |
| 39 public: |
| 40 MesaGLContext(); |
| 41 ~MesaGLContext() override; |
| 42 |
| 43 private: |
| 44 void destroyGLContext(); |
| 45 |
| 46 void onPlatformMakeCurrent() const override; |
| 47 |
| 48 void onPlatformSwapBuffers() const override; |
| 49 |
| 50 GrGLFuncPtr onPlatformGetProcAddress(const char *) const override; |
| 51 |
| 52 Context fContext; |
| 53 GrGLubyte *fImage; |
| 54 }; |
| 55 |
| 56 MesaGLContext::MesaGLContext() : fContext(static_cast<Context>(0)), fImage(nullp
tr) { |
18 GR_STATIC_ASSERT(sizeof(Context) == sizeof(OSMesaContext)); | 57 GR_STATIC_ASSERT(sizeof(Context) == sizeof(OSMesaContext)); |
19 | 58 |
20 /* Create an RGBA-mode context */ | 59 /* Create an RGBA-mode context */ |
21 #if OSMESA_MAJOR_VERSION * 100 + OSMESA_MINOR_VERSION >= 305 | 60 #if OSMESA_MAJOR_VERSION * 100 + OSMESA_MINOR_VERSION >= 305 |
22 /* specify Z, stencil, accum sizes */ | 61 /* specify Z, stencil, accum sizes */ |
23 fContext = (Context)OSMesaCreateContextExt(OSMESA_BGRA, 0, 0, 0, nullptr); | 62 fContext = (Context)OSMesaCreateContextExt(OSMESA_BGRA, 0, 0, 0, nullptr); |
24 #else | 63 #else |
25 fContext = (Context)OSMesaCreateContext(OSMESA_BGRA, nullptr); | 64 fContext = (Context) OSMesaCreateContext(OSMESA_BGRA, nullptr); |
26 #endif | 65 #endif |
27 if (!fContext) { | 66 if (!fContext) { |
28 SkDebugf("OSMesaCreateContext failed!\n"); | 67 SkDebugf("OSMesaCreateContext failed!\n"); |
29 this->destroyGLContext(); | 68 this->destroyGLContext(); |
30 return; | 69 return; |
31 } | 70 } |
32 // Allocate the image buffer | 71 // Allocate the image buffer |
33 fImage = (GrGLubyte *) sk_malloc_throw(gBOGUS_SIZE * gBOGUS_SIZE * | 72 fImage = (GrGLubyte *) sk_malloc_throw(gBOGUS_SIZE * gBOGUS_SIZE * |
34 4 * sizeof(GrGLubyte)); | 73 4 * sizeof(GrGLubyte)); |
35 if (!fImage) { | 74 if (!fImage) { |
36 SkDebugf("Alloc image buffer failed!\n"); | 75 SkDebugf("Alloc image buffer failed!\n"); |
37 this->destroyGLContext(); | 76 this->destroyGLContext(); |
38 return; | 77 return; |
39 } | 78 } |
40 | 79 |
41 // Bind the buffer to the context and make it current | 80 // Bind the buffer to the context and make it current |
42 if (!OSMesaMakeCurrent((OSMesaContext)fContext, | 81 if (!OSMesaMakeCurrent((OSMesaContext) fContext, |
43 fImage, | 82 fImage, |
44 GR_GL_UNSIGNED_BYTE, | 83 GR_GL_UNSIGNED_BYTE, |
45 gBOGUS_SIZE, | 84 gBOGUS_SIZE, |
46 gBOGUS_SIZE)) { | 85 gBOGUS_SIZE)) { |
47 SkDebugf("OSMesaMakeCurrent failed!\n"); | 86 SkDebugf("OSMesaMakeCurrent failed!\n"); |
48 this->destroyGLContext(); | 87 this->destroyGLContext(); |
49 return; | 88 return; |
50 } | 89 } |
51 | 90 |
52 SkAutoTUnref<const GrGLInterface> gl(GrGLCreateMesaInterface()); | 91 SkAutoTUnref<const GrGLInterface> gl(create_mesa_interface()); |
53 if (nullptr == gl.get()) { | 92 if (nullptr == gl.get()) { |
54 SkDebugf("Could not create GL interface!\n"); | 93 SkDebugf("Could not create GL interface!\n"); |
55 this->destroyGLContext(); | 94 this->destroyGLContext(); |
56 return; | 95 return; |
57 } | 96 } |
58 | 97 |
59 if (!gl->validate()) { | 98 if (!gl->validate()) { |
60 SkDebugf("Could not validate GL interface!\n"); | 99 SkDebugf("Could not validate GL interface!\n"); |
61 this->destroyGLContext(); | 100 this->destroyGLContext(); |
62 return; | 101 return; |
63 } | 102 } |
64 | 103 |
65 this->init(gl.release()); | 104 this->init(gl.release()); |
66 } | 105 } |
67 | 106 |
68 SkMesaGLContext::~SkMesaGLContext() { | 107 MesaGLContext::~MesaGLContext() { |
69 this->teardown(); | 108 this->teardown(); |
70 this->destroyGLContext(); | 109 this->destroyGLContext(); |
71 } | 110 } |
72 | 111 |
73 void SkMesaGLContext::destroyGLContext() { | 112 void MesaGLContext::destroyGLContext() { |
74 if (fImage) { | 113 if (fImage) { |
75 sk_free(fImage); | 114 sk_free(fImage); |
76 fImage = nullptr; | 115 fImage = nullptr; |
77 } | 116 } |
78 | 117 |
79 if (fContext) { | 118 if (fContext) { |
80 OSMesaDestroyContext((OSMesaContext)fContext); | 119 OSMesaDestroyContext((OSMesaContext) fContext); |
81 fContext = static_cast<Context>(0); | 120 fContext = static_cast<Context>(0); |
82 } | 121 } |
83 } | 122 } |
84 | 123 |
85 | 124 |
86 | 125 void MesaGLContext::onPlatformMakeCurrent() const { |
87 void SkMesaGLContext::onPlatformMakeCurrent() const { | |
88 if (fContext) { | 126 if (fContext) { |
89 if (!OSMesaMakeCurrent((OSMesaContext)fContext, fImage, | 127 if (!OSMesaMakeCurrent((OSMesaContext) fContext, fImage, |
90 GR_GL_UNSIGNED_BYTE, gBOGUS_SIZE, gBOGUS_SIZE)) { | 128 GR_GL_UNSIGNED_BYTE, gBOGUS_SIZE, gBOGUS_SIZE)) { |
91 SkDebugf("Could not make MESA context current."); | 129 SkDebugf("Could not make MESA context current."); |
92 } | 130 } |
93 } | 131 } |
94 } | 132 } |
95 | 133 |
96 void SkMesaGLContext::onPlatformSwapBuffers() const { } | 134 void MesaGLContext::onPlatformSwapBuffers() const { } |
97 | 135 |
98 GrGLFuncPtr SkMesaGLContext::onPlatformGetProcAddress(const char* procName) cons
t { | 136 GrGLFuncPtr MesaGLContext::onPlatformGetProcAddress(const char *procName) const
{ |
99 return OSMesaGetProcAddress(procName); | 137 return OSMesaGetProcAddress(procName); |
100 } | 138 } |
| 139 } // anonymous namespace |
| 140 |
| 141 |
| 142 namespace sk_gpu_test { |
| 143 GLContext *CreateMesaGLContext() { |
| 144 MesaGLContext *ctx = new MesaGLContext; |
| 145 if (!ctx->isValid()) { |
| 146 delete ctx; |
| 147 return nullptr; |
| 148 } |
| 149 return ctx; |
| 150 } |
| 151 } // sk_gpu_test |
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