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- // 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_GLX_H_
- #define UI_GL_GL_SURFACE_GLX_H_
- #include <stdint.h>
- #include <memory>
- #include <string>
- #include "base/memory/raw_ptr.h"
- #include "ui/gfx/geometry/size.h"
- #include "ui/gfx/native_widget_types.h"
- #include "ui/gfx/x/event.h"
- #include "ui/gfx/x/glx.h"
- #include "ui/gl/gl_export.h"
- #include "ui/gl/gl_surface.h"
- using GLXFBConfig = struct __GLXFBConfigRec*;
- namespace gfx {
- class VSyncProvider;
- }
- namespace gl {
- class GLSurfacePresentationHelper;
- // Base class for GLX surfaces.
- class GL_EXPORT GLSurfaceGLX : public GLSurface {
- public:
- GLSurfaceGLX();
- GLSurfaceGLX(const GLSurfaceGLX&) = delete;
- GLSurfaceGLX& operator=(const GLSurfaceGLX&) = delete;
- static bool InitializeOneOff();
- static bool InitializeExtensionSettingsOneOff();
- static void ShutdownOneOff();
- // 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 std::string QueryGLXExtensions();
- static const char* GetGLXExtensions();
- static bool HasGLXExtension(const char* name);
- static bool IsCreateContextSupported();
- static bool IsCreateContextRobustnessSupported();
- static bool IsRobustnessVideoMemoryPurgeSupported();
- static bool IsCreateContextProfileSupported();
- static bool IsCreateContextES2ProfileSupported();
- static bool IsTextureFromPixmapSupported();
- static bool IsOMLSyncControlSupported();
- static bool IsEXTSwapControlSupported();
- static bool IsMESASwapControlSupported();
- GLDisplay* GetGLDisplay() override;
- // Get the FB config that the surface was created with or NULL if it is not
- // a GLX drawable.
- void* GetConfig() override = 0;
- protected:
- ~GLSurfaceGLX() override;
- private:
- static bool initialized_;
- raw_ptr<GLDisplayX11> display_;
- };
- // A surface used to render to a view.
- class GL_EXPORT NativeViewGLSurfaceGLX : public GLSurfaceGLX {
- public:
- explicit NativeViewGLSurfaceGLX(gfx::AcceleratedWidget window);
- NativeViewGLSurfaceGLX(const NativeViewGLSurfaceGLX&) = delete;
- NativeViewGLSurfaceGLX& operator=(const NativeViewGLSurfaceGLX&) = delete;
- // Implement GLSurfaceGLX.
- bool Initialize(GLSurfaceFormat format) override;
- void Destroy() override;
- bool Resize(const gfx::Size& size,
- float scale_factor,
- const gfx::ColorSpace& color_space,
- bool has_alpha) override;
- bool IsOffscreen() override;
- gfx::SwapResult SwapBuffers(PresentationCallback callback) override;
- gfx::Size GetSize() override;
- void* GetHandle() override;
- bool SupportsPostSubBuffer() override;
- void* GetConfig() override;
- GLSurfaceFormat GetFormat() override;
- gfx::SwapResult PostSubBuffer(int x,
- int y,
- int width,
- int height,
- PresentationCallback callback) override;
- bool OnMakeCurrent(GLContext* context) override;
- gfx::VSyncProvider* GetVSyncProvider() override;
- void SetVSyncEnabled(bool enabled) override;
- protected:
- ~NativeViewGLSurfaceGLX() override;
- // Handle registering and unregistering for Expose events.
- virtual void RegisterEvents() = 0;
- virtual void UnregisterEvents() = 0;
- // Forwards Expose event to child window.
- void ForwardExposeEvent(const x11::Event& xevent);
- // Checks if event is Expose for child window.
- bool CanHandleEvent(const x11::Event& xevent);
- gfx::AcceleratedWidget window() const {
- return static_cast<gfx::AcceleratedWidget>(window_);
- }
- private:
- // The handle for the drawable to make current or swap.
- uint32_t GetDrawableHandle() const;
- // Window passed in at creation. Always valid.
- gfx::AcceleratedWidget parent_window_;
- // Child window, used to control resizes so that they're in-order with GL.
- x11::Window window_;
- // GLXDrawable for the window.
- x11::Glx::Window glx_window_;
- GLXFBConfig config_;
- gfx::Size size_;
- bool has_swapped_buffers_;
- std::unique_ptr<gfx::VSyncProvider> vsync_provider_;
- std::unique_ptr<GLSurfacePresentationHelper> presentation_helper_;
- };
- // A surface used to render to an offscreen pbuffer.
- class GL_EXPORT UnmappedNativeViewGLSurfaceGLX : public GLSurfaceGLX {
- public:
- explicit UnmappedNativeViewGLSurfaceGLX(const gfx::Size& size);
- UnmappedNativeViewGLSurfaceGLX(const UnmappedNativeViewGLSurfaceGLX&) =
- delete;
- UnmappedNativeViewGLSurfaceGLX& operator=(
- const UnmappedNativeViewGLSurfaceGLX&) = delete;
- // Implement GLSurfaceGLX.
- bool Initialize(GLSurfaceFormat format) override;
- void Destroy() override;
- bool IsOffscreen() override;
- gfx::SwapResult SwapBuffers(PresentationCallback callback) override;
- gfx::Size GetSize() override;
- void* GetHandle() override;
- void* GetConfig() override;
- GLSurfaceFormat GetFormat() override;
- protected:
- ~UnmappedNativeViewGLSurfaceGLX() override;
- private:
- gfx::Size size_;
- GLXFBConfig config_;
- // Unmapped dummy window, used to provide a compatible surface.
- x11::Window window_;
- // GLXDrawable for the window.
- x11::Glx::Window glx_window_;
- };
- } // namespace gl
- #endif // UI_GL_GL_SURFACE_GLX_H_
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