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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef MOJO_PUBLIC_PLATFORM_NATIVE_GLES2_THUNKS_H_ | |
| 6 #define MOJO_PUBLIC_PLATFORM_NATIVE_GLES2_THUNKS_H_ | |
| 7 | |
| 8 #include <stddef.h> | |
| 9 | |
| 10 #include "mojo/public/c/gles2/gles2.h" | |
| 11 | |
| 12 // Structure used to bind the interface which manipulates GLES2 surfaces to a | |
| 13 // DSO to theose of the embedder. | |
| 14 // | |
| 15 // This is the ABI between the embedder and the DSO. It can only have new | |
| 16 // functions added to the end. No other changes are supported. | |
| 17 #pragma pack(push, 8) | |
| 18 struct MojoGLES2ControlThunks { | |
| 19 size_t size; // Should be set to sizeof(MojoGLES2ControlThunks). | |
| 20 | |
| 21 MojoGLES2Context (*GLES2CreateContext)(MojoHandle handle, | |
| 22 MojoGLES2ContextLost lost_callback, | |
| 23 void* closure, | |
| 24 const MojoAsyncWaiter* async_waiter); | |
| 25 void (*GLES2DestroyContext)(MojoGLES2Context context); | |
| 26 void (*GLES2MakeCurrent)(MojoGLES2Context context); | |
| 27 void (*GLES2SwapBuffers)(); | |
| 28 | |
| 29 // TODO(piman): We shouldn't have to leak these 2 interfaces, especially in a | |
| 30 // type-unsafe way. | |
| 31 void* (*GLES2GetGLES2Interface)(MojoGLES2Context context); | |
| 32 void* (*GLES2GetContextSupport)(MojoGLES2Context context); | |
| 33 }; | |
| 34 #pragma pack(pop) | |
| 35 | |
| 36 // Intended to be called from the embedder. Returns an object initialized to | |
| 37 // contain pointers to each of the embedder's MojoGLES2ControlThunks functions. | |
| 38 inline MojoGLES2ControlThunks MojoMakeGLES2ControlThunks() { | |
| 39 MojoGLES2ControlThunks gles2_control_thunks = { | |
| 40 sizeof(MojoGLES2ControlThunks), | |
| 41 MojoGLES2CreateContext, | |
| 42 MojoGLES2DestroyContext, | |
| 43 MojoGLES2MakeCurrent, | |
| 44 MojoGLES2SwapBuffers, | |
| 45 MojoGLES2GetGLES2Interface, | |
| 46 MojoGLES2GetContextSupport | |
| 47 }; | |
| 48 | |
| 49 return gles2_control_thunks; | |
| 50 } | |
| 51 | |
| 52 // Use this type for the function found by dynamically discovering it in | |
| 53 // a DSO linked with mojo_system. For example: | |
| 54 // MojoSetGLES2ControlThunksFn mojo_set_gles2_control_thunks_fn = | |
| 55 // reinterpret_cast<MojoSetGLES2ControlThunksFn>( | |
| 56 // app_library.GetFunctionPointer("MojoSetGLES2ControlThunks")); | |
| 57 // The expected size of |gles2_control_thunks| is returned. | |
| 58 // The contents of |gles2_control_thunks| are copied. | |
| 59 typedef size_t (*MojoSetGLES2ControlThunksFn)( | |
| 60 const MojoGLES2ControlThunks* gles2_control_thunks); | |
| 61 | |
| 62 #endif // MOJO_PUBLIC_PLATFORM_NATIVE_GLES2_THUNKS_H_ | |
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