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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 UI_OZONE_PUBLIC_SURFACE_OZONE_EGL_H_ | |
6 #define UI_OZONE_PUBLIC_SURFACE_OZONE_EGL_H_ | |
7 | |
8 #include <memory> | |
9 | |
10 #include "base/callback.h" | |
11 #include "ui/gfx/overlay_transform.h" | |
12 #include "ui/gfx/swap_result.h" | |
13 #include "ui/ozone/ozone_base_export.h" | |
14 | |
15 namespace gfx { | |
16 class Size; | |
17 class VSyncProvider; | |
18 } | |
19 | |
20 namespace ui { | |
21 class NativePixmap; | |
22 | |
23 typedef base::Callback<void(gfx::SwapResult)> SwapCompletionCallback; | |
24 | |
25 // Holds callbacks to functions for configuring EGL on platform. | |
26 struct OZONE_BASE_EXPORT EglConfigCallbacks { | |
27 EglConfigCallbacks(); | |
28 EglConfigCallbacks(const EglConfigCallbacks& other); | |
29 ~EglConfigCallbacks(); | |
30 base::Callback<bool(const int32_t* attribs, | |
31 void** /* EGLConfig* */ configs, | |
32 int32_t config_size, | |
33 int32_t* num_configs)> | |
34 choose_config; | |
35 base::Callback< | |
36 bool(void* /* EGLConfig */ config, int32_t attribute, int32_t* value)> | |
37 get_config_attribute; | |
38 base::Callback<const char*()> get_last_error_string; | |
39 }; | |
40 | |
41 // The platform-specific part of an EGL surface. | |
42 // | |
43 // This class owns any bits that the ozone implementation needs freed when | |
44 // the EGL surface is destroyed. | |
45 class OZONE_BASE_EXPORT SurfaceOzoneEGL { | |
46 public: | |
47 virtual ~SurfaceOzoneEGL() {} | |
48 | |
49 // Returns the EGL native window for rendering onto this surface. | |
50 // This can be used to to create a GLSurface. | |
51 virtual intptr_t /* EGLNativeWindowType */ GetNativeWindow() = 0; | |
52 | |
53 // Attempts to resize the EGL native window to match the viewport | |
54 // size. | |
55 virtual bool ResizeNativeWindow(const gfx::Size& viewport_size) = 0; | |
56 | |
57 // Called after we swap buffers. This is usually a no-op but can | |
58 // be used to present the new front buffer if the platform requires this. | |
59 virtual bool OnSwapBuffers() = 0; | |
60 | |
61 // Called after we swap buffers. This is usually a no-op but can | |
62 // be used to present the new front buffer if the platform requires this. | |
63 // The callback should be run on the calling thread | |
64 // (i.e. same thread SwapBuffersAsync is called). | |
65 virtual void OnSwapBuffersAsync(const SwapCompletionCallback& callback) = 0; | |
66 | |
67 // Returns a gfx::VsyncProvider for this surface. Note that this may be | |
68 // called after we have entered the sandbox so if there are operations (e.g. | |
69 // opening a file descriptor providing vsync events) that must be done | |
70 // outside of the sandbox, they must have been completed in | |
71 // InitializeHardware. Returns an empty scoped_ptr on error. | |
72 virtual std::unique_ptr<gfx::VSyncProvider> CreateVSyncProvider() = 0; | |
73 | |
74 // Returns true if the surface is created on a UDL device. | |
75 virtual bool IsUniversalDisplayLinkDevice(); | |
76 | |
77 // Returns the EGL configuration to use for this surface. The default EGL | |
78 // configuration will be used if this returns nullptr. | |
79 virtual void* /* EGLConfig */ GetEGLSurfaceConfig( | |
80 const EglConfigCallbacks& egl) = 0; | |
81 }; | |
82 | |
83 } // namespace ui | |
84 | |
85 #endif // UI_OZONE_PUBLIC_SURFACE_OZONE_EGL_H_ | |
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