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/*
* Copyright (C) 2023 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if USE(EGL)
#include "AcceleratedBackingStore.h"
#include "MessageReceiver.h"
#include <WebCore/IntSize.h>
#include <WebCore/RefPtrCairo.h>
#include <gtk/gtk.h>
#include <wtf/CompletionHandler.h>
#include <wtf/OptionSet.h>
#include <wtf/glib/GRefPtr.h>
#include <wtf/unix/UnixFileDescriptor.h>
typedef void *EGLImage;
#if USE(GBM)
struct gbm_bo;
#endif
namespace WebCore {
class IntRect;
}
namespace WTF {
class UnixFileDescriptor;
}
namespace WebKit {
class ShareableBitmap;
class ShareableBitmapHandle;
class WebPageProxy;
enum class DMABufRendererBufferMode : uint8_t;
class AcceleratedBackingStoreDMABuf final : public AcceleratedBackingStore, public IPC::MessageReceiver {
WTF_MAKE_NONCOPYABLE(AcceleratedBackingStoreDMABuf); WTF_MAKE_FAST_ALLOCATED;
public:
static OptionSet<DMABufRendererBufferMode> rendererBufferMode();
static bool checkRequirements();
static std::unique_ptr<AcceleratedBackingStoreDMABuf> create(WebPageProxy&);
~AcceleratedBackingStoreDMABuf();
private:
AcceleratedBackingStoreDMABuf(WebPageProxy&);
// IPC::MessageReceiver.
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
void configure(WTF::UnixFileDescriptor&&, WTF::UnixFileDescriptor&&, WTF::UnixFileDescriptor&&, const WebCore::IntSize&, uint32_t format, uint32_t offset, uint32_t stride, uint64_t modifier);
void configureSHM(ShareableBitmapHandle&&, ShareableBitmapHandle&&, ShareableBitmapHandle&&);
void frame();
void willDisplayFrame();
void frameDone();
void ensureGLContext();
#if USE(GTK4)
void snapshot(GtkSnapshot*) override;
#else
bool paint(cairo_t*, const WebCore::IntRect&) override;
#endif
void realize() override;
void unrealize() override;
bool makeContextCurrent() override;
void update(const LayerTreeContext&) override;
class RenderSource {
WTF_MAKE_FAST_ALLOCATED;
public:
virtual ~RenderSource() = default;
virtual void frame() = 0;
virtual void willDisplayFrame() = 0;
virtual bool prepareForRendering() = 0;
#if USE(GTK4)
virtual void snapshot(GtkSnapshot*) const = 0;
#else
virtual void paint(GtkWidget*, cairo_t*, const WebCore::IntRect&) const = 0;
#endif
const WebCore::IntSize size() const { return m_size; }
protected:
RenderSource(const WebCore::IntSize&, float deviceScaleFactor);
WebCore::IntSize m_size;
float m_deviceScaleFactor { 1 };
};
class Texture final : public RenderSource {
public:
Texture(GdkGLContext*, const WTF::UnixFileDescriptor&, const WTF::UnixFileDescriptor&, const WTF::UnixFileDescriptor&, const WebCore::IntSize&, uint32_t format, uint32_t offset, uint32_t stride, uint64_t modifier, float deviceScaleFactor);
~Texture();
unsigned texture() const { return m_textureID; }
private:
void frame() override;
void willDisplayFrame() override;
bool prepareForRendering() override;
#if USE(GTK4)
void snapshot(GtkSnapshot*) const override;
#else
void paint(GtkWidget*, cairo_t*, const WebCore::IntRect&) const override;
#endif
GRefPtr<GdkGLContext> m_context;
unsigned m_textureID { 0 };
EGLImage m_backImage { nullptr };
EGLImage m_frontImage { nullptr };
EGLImage m_displayImage { nullptr };
#if USE(GTK4)
GRefPtr<GdkTexture> m_texture[2];
uint16_t m_textureIndex : 1;
#endif
};
class Surface final : public RenderSource {
public:
#if USE(GBM)
Surface(const WTF::UnixFileDescriptor&, const WTF::UnixFileDescriptor&, const WTF::UnixFileDescriptor&, const WebCore::IntSize&, uint32_t format, uint32_t offset, uint32_t stride, float deviceScaleFactor);
#endif
Surface(RefPtr<ShareableBitmap>&, RefPtr<ShareableBitmap>&, RefPtr<ShareableBitmap>&, float deviceScaleFactor);
~Surface();
cairo_surface_t* surface() const { return m_surface.get(); }
private:
void frame() override;
void willDisplayFrame() override;
bool prepareForRendering() override;
#if USE(GTK4)
void snapshot(GtkSnapshot*) const override;
#else
void paint(GtkWidget*, cairo_t*, const WebCore::IntRect&) const override;
#endif
#if USE(GBM)
RefPtr<cairo_surface_t> map(struct gbm_bo*) const;
#endif
RefPtr<cairo_surface_t> map(RefPtr<ShareableBitmap>&) const;
#if USE(GBM)
struct gbm_bo* m_backBuffer { nullptr };
struct gbm_bo* m_frontBuffer { nullptr };
struct gbm_bo* m_displayBuffer { nullptr };
#endif
RefPtr<ShareableBitmap> m_backBitmap;
RefPtr<ShareableBitmap> m_frontBitmap;
RefPtr<ShareableBitmap> m_displayBitmap;
RefPtr<cairo_surface_t> m_surface;
RefPtr<cairo_surface_t> m_backSurface;
RefPtr<cairo_surface_t> m_displaySurface;
};
std::unique_ptr<RenderSource> createSource();
GRefPtr<GdkGLContext> m_gdkGLContext;
bool m_glContextInitialized { false };
bool m_isSoftwareRast { false };
struct {
uint64_t id { 0 };
WTF::UnixFileDescriptor backFD;
WTF::UnixFileDescriptor frontFD;
WTF::UnixFileDescriptor displayFD;
RefPtr<ShareableBitmap> backBitmap;
RefPtr<ShareableBitmap> frontBitmap;
RefPtr<ShareableBitmap> displayBitmap;
WebCore::IntSize size;
uint32_t format { 0 };
uint32_t offset { 0 };
uint32_t stride { 0 };
uint64_t modifier { 0 };
} m_surface;
std::unique_ptr<RenderSource> m_pendingSource;
std::unique_ptr<RenderSource> m_committedSource;
CompletionHandler<void()> m_frameCompletionHandler;
};
} // namespace WebKit
#endif // USE(EGL)
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