| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_GL_GL_SURFACE_EGL_H_ |
| #define UI_GL_GL_SURFACE_EGL_H_ |
| |
| #if defined(OS_WIN) |
| #include <windows.h> |
| #endif |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/command_line.h" |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "base/time/time.h" |
| #include "build/build_config.h" |
| #include "ui/gfx/geometry/size.h" |
| #include "ui/gfx/vsync_provider.h" |
| #include "ui/gl/gl_bindings.h" |
| #include "ui/gl/gl_export.h" |
| #include "ui/gl/gl_surface.h" |
| #include "ui/gl/gl_surface_overlay.h" |
| |
| namespace gl { |
| |
| // Get default EGL display for GLSurfaceEGL (differs by platform). |
| EGLNativeDisplayType GetPlatformDefaultEGLNativeDisplay(); |
| |
| // If adding a new type, also add it to EGLDisplayType in |
| // tools/metrics/histograms/histograms.xml. Don't remove or reorder entries. |
| enum DisplayType { |
| DEFAULT = 0, |
| SWIFT_SHADER = 1, |
| ANGLE_WARP = 2, |
| ANGLE_D3D9 = 3, |
| ANGLE_D3D11 = 4, |
| ANGLE_OPENGL = 5, |
| ANGLE_OPENGLES = 6, |
| DISPLAY_TYPE_MAX = 7, |
| }; |
| |
| GL_EXPORT void GetEGLInitDisplays(bool supports_angle_d3d, |
| bool supports_angle_opengl, |
| const base::CommandLine* command_line, |
| std::vector<DisplayType>* init_displays); |
| |
| // Interface for EGL surface. |
| class GL_EXPORT GLSurfaceEGL : public GLSurface { |
| public: |
| GLSurfaceEGL(); |
| |
| // Implement GLSurface. |
| EGLDisplay GetDisplay() override; |
| EGLConfig GetConfig() override; |
| GLSurface::Format GetFormat() override; |
| |
| static bool InitializeOneOff(); |
| static EGLDisplay GetHardwareDisplay(); |
| static EGLDisplay InitializeDisplay(); |
| static EGLNativeDisplayType GetNativeDisplay(); |
| |
| // These aren't particularly tied to surfaces, but since we already |
| // have the static InitializeOneOff here, it's easiest to reuse its |
| // initialization guards. |
| static const char* GetEGLExtensions(); |
| static bool HasEGLExtension(const char* name); |
| static bool IsCreateContextRobustnessSupported(); |
| static bool IsEGLSurfacelessContextSupported(); |
| static bool IsDirectCompositionSupported(); |
| |
| protected: |
| ~GLSurfaceEGL() override; |
| |
| EGLConfig config_ = nullptr; |
| GLSurface::Format format_ = GLSurface::SURFACE_DEFAULT; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(GLSurfaceEGL); |
| }; |
| |
| // Encapsulates an EGL surface bound to a view. |
| class GL_EXPORT NativeViewGLSurfaceEGL : public GLSurfaceEGL { |
| public: |
| explicit NativeViewGLSurfaceEGL(EGLNativeWindowType window); |
| |
| // Implement GLSurface. |
| using GLSurfaceEGL::Initialize; |
| bool Initialize(GLSurface::Format format) override; |
| void Destroy() override; |
| bool Resize(const gfx::Size& size, |
| float scale_factor, |
| bool has_alpha) override; |
| bool Recreate() override; |
| bool IsOffscreen() override; |
| gfx::SwapResult SwapBuffers() override; |
| gfx::Size GetSize() override; |
| EGLSurface GetHandle() override; |
| bool SupportsPostSubBuffer() override; |
| gfx::SwapResult PostSubBuffer(int x, int y, int width, int height) override; |
| bool SupportsCommitOverlayPlanes() override; |
| gfx::SwapResult CommitOverlayPlanes() override; |
| gfx::VSyncProvider* GetVSyncProvider() override; |
| bool ScheduleOverlayPlane(int z_order, |
| gfx::OverlayTransform transform, |
| GLImage* image, |
| const gfx::Rect& bounds_rect, |
| const gfx::RectF& crop_rect) override; |
| bool FlipsVertically() const override; |
| bool BuffersFlipped() const override; |
| |
| // Create a NativeViewGLSurfaceEGL with an externally provided |
| // gfx::VSyncProvider. Takes ownership of the gfx::VSyncProvider. |
| virtual bool Initialize(std::unique_ptr<gfx::VSyncProvider> sync_provider); |
| |
| // Takes care of the platform dependant bits, of any, for creating the window. |
| virtual bool InitializeNativeWindow(); |
| |
| protected: |
| ~NativeViewGLSurfaceEGL() override; |
| |
| EGLNativeWindowType window_; |
| gfx::Size size_; |
| bool enable_fixed_size_angle_; |
| |
| void OnSetSwapInterval(int interval) override; |
| |
| private: |
| // Commit the |pending_overlays_| and clear the vector. Returns false if any |
| // fail to be committed. |
| bool CommitAndClearPendingOverlays(); |
| |
| EGLSurface surface_; |
| bool supports_post_sub_buffer_; |
| bool flips_vertically_; |
| |
| std::unique_ptr<gfx::VSyncProvider> vsync_provider_; |
| |
| int swap_interval_; |
| |
| std::vector<GLSurfaceOverlay> pending_overlays_; |
| |
| #if defined(OS_WIN) |
| bool vsync_override_; |
| |
| unsigned int swap_generation_; |
| static unsigned int current_swap_generation_; |
| static unsigned int swaps_this_generation_; |
| static unsigned int last_multiswap_generation_; |
| #endif |
| |
| DISALLOW_COPY_AND_ASSIGN(NativeViewGLSurfaceEGL); |
| }; |
| |
| // Encapsulates a pbuffer EGL surface. |
| class GL_EXPORT PbufferGLSurfaceEGL : public GLSurfaceEGL { |
| public: |
| explicit PbufferGLSurfaceEGL(const gfx::Size& size); |
| |
| // Implement GLSurface. |
| bool Initialize() override; |
| bool Initialize(GLSurface::Format format) override; |
| void Destroy() override; |
| bool IsOffscreen() override; |
| gfx::SwapResult SwapBuffers() override; |
| gfx::Size GetSize() override; |
| bool Resize(const gfx::Size& size, |
| float scale_factor, |
| bool has_alpha) override; |
| EGLSurface GetHandle() override; |
| void* GetShareHandle() override; |
| |
| protected: |
| ~PbufferGLSurfaceEGL() override; |
| |
| private: |
| gfx::Size size_; |
| EGLSurface surface_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PbufferGLSurfaceEGL); |
| }; |
| |
| // SurfacelessEGL is used as Offscreen surface when platform supports |
| // KHR_surfaceless_context and GL_OES_surfaceless_context. This would avoid the |
| // need to create a dummy EGLsurface in case we render to client API targets. |
| class GL_EXPORT SurfacelessEGL : public GLSurfaceEGL { |
| public: |
| explicit SurfacelessEGL(const gfx::Size& size); |
| |
| // Implement GLSurface. |
| bool Initialize() override; |
| bool Initialize(GLSurface::Format format) override; |
| void Destroy() override; |
| bool IsOffscreen() override; |
| bool IsSurfaceless() const override; |
| gfx::SwapResult SwapBuffers() override; |
| gfx::Size GetSize() override; |
| bool Resize(const gfx::Size& size, |
| float scale_factor, |
| bool has_alpha) override; |
| EGLSurface GetHandle() override; |
| void* GetShareHandle() override; |
| |
| protected: |
| ~SurfacelessEGL() override; |
| |
| private: |
| gfx::Size size_; |
| DISALLOW_COPY_AND_ASSIGN(SurfacelessEGL); |
| }; |
| |
| } // namespace gl |
| |
| #endif // UI_GL_GL_SURFACE_EGL_H_ |