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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_IMPL_THUNKS_H_ | |
6 #define MOJO_PUBLIC_PLATFORM_NATIVE_GLES2_IMPL_THUNKS_H_ | |
7 | |
8 #include <stddef.h> | |
9 | |
10 #include "mojo/public/c/gles2/gles2.h" | |
11 | |
12 // Like MojoGLES2ControlThunks, but specifies the frozen GLES2 API. Separated | |
13 // out as MojoGLES2ControlThunks may be modified and added to, but this | |
14 // interface is frozen. | |
15 #pragma pack(push, 8) | |
16 struct MojoGLES2ImplThunks { | |
17 size_t size; // Should be set to sizeof(MojoGLES2ImplThunks). | |
18 | |
19 #define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) \ | |
20 ReturnType(*Function) PARAMETERS; | |
21 #include "mojo/public/c/gles2/gles2_call_visitor_autogen.h" | |
22 #undef VISIT_GL_CALL | |
23 }; | |
24 #pragma pack(pop) | |
25 | |
26 // Intended to be called from the embedder to get the embedder's implementation | |
27 // of GLES2. | |
28 inline MojoGLES2ImplThunks MojoMakeGLES2ImplThunks() { | |
29 MojoGLES2ImplThunks gles2_impl_thunks = { | |
30 sizeof(MojoGLES2ImplThunks), | |
31 #define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) gl##Function, | |
32 #include "mojo/public/c/gles2/gles2_call_visitor_autogen.h" | |
33 #undef VISIT_GL_CALL | |
34 }; | |
35 | |
36 return gles2_impl_thunks; | |
37 } | |
38 | |
39 // Use this type for the function found by dynamically discovering it in | |
40 // a DSO linked with mojo_system. For example: | |
41 // MojoSetGLES2ImplThunksFn mojo_set_gles2_impl_thunks_fn = | |
42 // reinterpret_cast<MojoSetGLES2ImplThunksFn>( | |
43 // app_library.GetFunctionPointer("MojoSetGLES2ImplThunks")); | |
44 // The expected size of |gles2_impl_thunks| is returned. | |
45 // The contents of |gles2_impl_thunks| are copied. | |
46 typedef size_t (*MojoSetGLES2ImplThunksFn)( | |
47 const MojoGLES2ImplThunks* gles2_impl_thunks); | |
48 | |
49 #endif // MOJO_PUBLIC_PLATFORM_NATIVE_GLES2_IMPL_THUNKS_H_ | |
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