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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 <GLES2/gl2.h> | |
9 #include <stddef.h> | |
10 | |
11 // Like MojoGLES2ControlThunks, but specifies the frozen GLES2 API. Separated | |
12 // out as MojoGLES2ControlThunks may be modified and added to, but this | |
13 // interface is frozen. | |
14 #pragma pack(push, 8) | |
15 struct MojoGLES2ImplThunks { | |
16 size_t size; // Should be set to sizeof(MojoGLES2ImplThunks). | |
17 | |
18 #define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) \ | |
19 ReturnType(GL_APIENTRY *Function) PARAMETERS; | |
20 #include "mojo/public/platform/native/gles2/call_visitor_autogen.h" | |
21 #undef VISIT_GL_CALL | |
22 }; | |
23 #pragma pack(pop) | |
24 | |
25 // Intended to be called from the embedder to get the embedder's implementation | |
26 // of GLES2. | |
27 inline struct MojoGLES2ImplThunks MojoMakeGLES2ImplThunks() { | |
28 struct MojoGLES2ImplThunks gles2_impl_thunks = { | |
29 sizeof(struct MojoGLES2ImplThunks), | |
30 #define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) gl##Function, | |
31 #include "mojo/public/platform/native/gles2/call_visitor_autogen.h" | |
32 #undef VISIT_GL_CALL | |
33 }; | |
34 | |
35 return gles2_impl_thunks; | |
36 } | |
37 | |
38 // Use this type for the function found by dynamically discovering it in | |
39 // a DSO linked with mojo_system. For example: | |
40 // MojoSetGLES2ImplThunksFn mojo_set_gles2_impl_thunks_fn = | |
41 // reinterpret_cast<MojoSetGLES2ImplThunksFn>( | |
42 // app_library.GetFunctionPointer("MojoSetGLES2ImplThunks")); | |
43 // The expected size of |gles2_impl_thunks| is returned. | |
44 // The contents of |gles2_impl_thunks| are copied. | |
45 typedef size_t (*MojoSetGLES2ImplThunksFn)( | |
46 const struct MojoGLES2ImplThunks* gles2_impl_thunks); | |
47 | |
48 #endif // MOJO_PUBLIC_PLATFORM_NATIVE_GLES2_IMPL_THUNKS_H_ | |
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