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| 1 | 1 |
| 2 /* | 2 /* |
| 3 * Copyright 2013 Google Inc. | 3 * Copyright 2013 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 #ifndef SkGLContext_DEFINED | 8 #ifndef GLContext_DEFINED |
| 9 #define SkGLContext_DEFINED | 9 #define GLContext_DEFINED |
| 10 | 10 |
| 11 #include "GrGLInterface.h" | 11 #include "gl/GrGLInterface.h" |
| 12 #include "../private/SkGpuFenceSync.h" | 12 #include "../private/SkGpuFenceSync.h" |
| 13 | 13 |
| 14 |
| 15 namespace sk_gpu_test { |
| 14 /** | 16 /** |
| 15 * Create an offscreen opengl context with an RGBA8 / 8bit stencil FBO. | 17 * Create an offscreen Oppengl context. Provides a GrGLInterface struct of funct
ion pointers for |
| 16 * Provides a GrGLInterface struct of function pointers for the context. | 18 * the context. This class is intended for Skia's internal testing needs and not
for general use. |
| 17 * This class is intended for Skia's testing needs and not for general | |
| 18 * use. | |
| 19 */ | 19 */ |
| 20 class SK_API SkGLContext : public SkNoncopyable { | 20 class GLContext : public SkNoncopyable { |
| 21 public: | 21 public: |
| 22 virtual ~SkGLContext(); | 22 virtual ~GLContext(); |
| 23 | 23 |
| 24 bool isValid() const { return NULL != gl(); } | 24 bool isValid() const { return NULL != gl(); } |
| 25 | 25 |
| 26 const GrGLInterface* gl() const { return fGL.get(); } | 26 const GrGLInterface *gl() const { return fGL.get(); } |
| 27 | 27 |
| 28 bool fenceSyncSupport() const { return fFenceSync != nullptr; } | 28 bool fenceSyncSupport() const { return fFenceSync != nullptr; } |
| 29 | 29 |
| 30 bool getMaxGpuFrameLag(int* maxFrameLag) const { | 30 bool getMaxGpuFrameLag(int *maxFrameLag) const { |
| 31 if (!fFenceSync) { | 31 if (!fFenceSync) { |
| 32 return false; | 32 return false; |
| 33 } | 33 } |
| 34 *maxFrameLag = kMaxFrameLag; | 34 *maxFrameLag = kMaxFrameLag; |
| 35 return true; | 35 return true; |
| 36 } | 36 } |
| 37 | 37 |
| 38 void makeCurrent() const; | 38 void makeCurrent() const; |
| 39 | 39 |
| 40 /** Used for testing EGLImage integration. Take a GL_TEXTURE_2D and wraps it
in an EGL Image */ | 40 /** Used for testing EGLImage integration. Take a GL_TEXTURE_2D and wraps it
in an EGL Image */ |
| 41 virtual GrEGLImage texture2DToEGLImage(GrGLuint /*texID*/) const { return 0;
} | 41 virtual GrEGLImage texture2DToEGLImage(GrGLuint /*texID*/) const { return 0;
} |
| 42 virtual void destroyEGLImage(GrEGLImage) const {} | 42 |
| 43 virtual void destroyEGLImage(GrEGLImage) const { } |
| 43 | 44 |
| 44 /** Used for testing GL_TEXTURE_RECTANGLE integration. */ | 45 /** Used for testing GL_TEXTURE_RECTANGLE integration. */ |
| 45 GrGLint createTextureRectangle(int width, int height, GrGLenum internalForma
t, | 46 GrGLint createTextureRectangle(int width, int height, GrGLenum internalForma
t, |
| 46 GrGLenum externalFormat, GrGLenum externalTyp
e, | 47 GrGLenum externalFormat, GrGLenum externalTyp
e, |
| 47 GrGLvoid* data); | 48 GrGLvoid *data); |
| 48 | 49 |
| 49 /** | 50 /** |
| 50 * Used for testing EGLImage integration. Takes a EGLImage and wraps it in a | 51 * Used for testing EGLImage integration. Takes a EGLImage and wraps it in a |
| 51 * GL_TEXTURE_EXTERNAL_OES. | 52 * GL_TEXTURE_EXTERNAL_OES. |
| 52 */ | 53 */ |
| 53 virtual GrGLuint eglImageToExternalTexture(GrEGLImage) const { return 0; } | 54 virtual GrGLuint eglImageToExternalTexture(GrEGLImage) const { return 0; } |
| 54 | 55 |
| 55 void swapBuffers(); | 56 void swapBuffers(); |
| 56 | 57 |
| 57 /** | 58 /** |
| (...skipping 16 matching lines...) Expand all Loading... |
| 74 * the context. It is useful for debugging contexts that would otherwise | 75 * the context. It is useful for debugging contexts that would otherwise |
| 75 * test that GPU resources are properly deleted. It also allows a debugging | 76 * test that GPU resources are properly deleted. It also allows a debugging |
| 76 * context to test that further GL calls are not made by Skia GPU code. | 77 * context to test that further GL calls are not made by Skia GPU code. |
| 77 */ | 78 */ |
| 78 void testAbandon(); | 79 void testAbandon(); |
| 79 | 80 |
| 80 /** | 81 /** |
| 81 * Creates a new GL context of the same type and makes the returned context
current | 82 * Creates a new GL context of the same type and makes the returned context
current |
| 82 * (if not null). | 83 * (if not null). |
| 83 */ | 84 */ |
| 84 virtual SkGLContext* createNew() const { return nullptr; } | 85 virtual GLContext *createNew() const { return nullptr; } |
| 85 | 86 |
| 86 class GLFenceSync; // SkGpuFenceSync implementation that uses the OpenGL fu
nctionality. | 87 class GLFenceSync; // SkGpuFenceSync implementation that uses the OpenGL fu
nctionality. |
| 87 | 88 |
| 88 /* | 89 /* |
| 89 * returns the fencesync object owned by this SkGLContext | 90 * returns the fencesync object owned by this GLContext |
| 90 */ | 91 */ |
| 91 SkGpuFenceSync* fenceSync() { return fFenceSync.get(); } | 92 SkGpuFenceSync *fenceSync() { return fFenceSync.get(); } |
| 92 | 93 |
| 93 protected: | 94 protected: |
| 94 SkGLContext(); | 95 GLContext(); |
| 95 | 96 |
| 96 /* | 97 /* |
| 97 * Methods that sublcasses must call from their constructors and destructors
. | 98 * Methods that sublcasses must call from their constructors and destructors
. |
| 98 */ | 99 */ |
| 99 void init(const GrGLInterface*, SkGpuFenceSync* = NULL); | 100 void init(const GrGLInterface *, SkGpuFenceSync * = NULL); |
| 101 |
| 100 void teardown(); | 102 void teardown(); |
| 101 | 103 |
| 102 /* | 104 /* |
| 103 * Operations that have a platform-dependent implementation. | 105 * Operations that have a platform-dependent implementation. |
| 104 */ | 106 */ |
| 105 virtual void onPlatformMakeCurrent() const = 0; | 107 virtual void onPlatformMakeCurrent() const = 0; |
| 108 |
| 106 virtual void onPlatformSwapBuffers() const = 0; | 109 virtual void onPlatformSwapBuffers() const = 0; |
| 107 virtual GrGLFuncPtr onPlatformGetProcAddress(const char*) const = 0; | 110 |
| 111 virtual GrGLFuncPtr onPlatformGetProcAddress(const char *) const = 0; |
| 108 | 112 |
| 109 private: | 113 private: |
| 110 enum { kMaxFrameLag = 3 }; | 114 enum { |
| 115 kMaxFrameLag = 3 |
| 116 }; |
| 111 | 117 |
| 112 SkAutoTDelete<SkGpuFenceSync> fFenceSync; | 118 SkAutoTDelete <SkGpuFenceSync> fFenceSync; |
| 113 SkPlatformGpuFence fFrameFences[kMaxFrameLag - 1]; | 119 SkPlatformGpuFence fFrameFences[kMaxFrameLag - 1]; |
| 114 int fCurrentFenceIdx; | 120 int fCurrentFenceIdx; |
| 115 | 121 |
| 116 /** Subclass provides the gl interface object if construction was | 122 /** Subclass provides the gl interface object if construction was |
| 117 * successful. */ | 123 * successful. */ |
| 118 SkAutoTUnref<const GrGLInterface> fGL; | 124 SkAutoTUnref<const GrGLInterface> fGL; |
| 119 | 125 |
| 120 friend class GLFenceSync; // For onPlatformGetProcAddress. | 126 friend class GLFenceSync; // For onPlatformGetProcAddress. |
| 121 }; | 127 }; |
| 122 | 128 |
| 129 |
| 123 /** Creates platform-dependent GL context object. The shareContext parameter is
in an optional | 130 /** Creates platform-dependent GL context object. The shareContext parameter is
in an optional |
| 124 * context with which to share display lists. This should be a pointer to an SkG
LContext created | 131 * context with which to share display lists. This should be a pointer to an GLC
ontext created |
| 125 * with SkCreatePlatformGLContext. NULL indicates that no sharing is to take pl
ace. Returns a valid | 132 * with SkCreatePlatformGLContext. NULL indicates that no sharing is to take pl
ace. Returns a valid |
| 126 * gl context object or NULL if such can not be created. | 133 * gl context object or NULL if such can not be created. |
| 127 * Note: If Skia embedder needs a custom GL context that sets up the GL interfac
e, this function | 134 * Note: If Skia embedder needs a custom GL context that sets up the GL interfac
e, this function |
| 128 * should be implemented by the embedder. Otherwise, the default implementation
for the platform | 135 * should be implemented by the embedder. Otherwise, the default implementation
for the platform |
| 129 * should be compiled in the library. | 136 * should be compiled in the library. |
| 130 */ | 137 */ |
| 131 SK_API SkGLContext* SkCreatePlatformGLContext(GrGLStandard forcedGpuAPI, | 138 GLContext* CreatePlatformGLContext(GrGLStandard forcedGpuAPI, GLContext *shareCo
ntext = nullptr); |
| 132 SkGLContext* shareContext = nullpt
r); | |
| 133 | 139 |
| 134 /** | 140 } // namespace sk_gpu_test |
| 135 * Helper macros for using the GL context through the GrGLInterface. Example: | |
| 136 * SK_GL(glCtx, GenTextures(1, &texID)); | |
| 137 */ | |
| 138 #define SK_GL(ctx, X) (ctx).gl()->fFunctions.f ## X; \ | |
| 139 SkASSERT(0 == (ctx).gl()->fFunctions.fGetError()) | |
| 140 #define SK_GL_RET(ctx, RET, X) (RET) = (ctx).gl()->fFunctions.f ## X; \ | |
| 141 SkASSERT(0 == (ctx).gl()->fFunctions.fGetError()) | |
| 142 #define SK_GL_NOERRCHECK(ctx, X) (ctx).gl()->fFunctions.f ## X | |
| 143 #define SK_GL_RET_NOERRCHECK(ctx, RET, X) (RET) = (ctx).gl()->fFunctions.f ## X | |
| 144 | |
| 145 #endif | 141 #endif |
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