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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "display_skia_output_device.h"
#include "type_conversion.h"
#include "gpu/command_buffer/service/skia_utils.h"
#include "third_party/skia/include/core/SkSurfaceProps.h"
namespace QtWebEngineCore {
class DisplaySkiaOutputDevice::Buffer
{
public:
Buffer(DisplaySkiaOutputDevice *parent)
: m_parent(parent)
, m_shape(m_parent->m_shape)
{
auto formatIndex = static_cast<int>(m_shape.format);
const auto &colorType = m_parent->capabilities_.sk_color_types[formatIndex];
DCHECK(colorType != kUnknown_SkColorType)
<< "SkColorType is invalid for format: " << formatIndex;
m_texture = m_parent->m_contextState->gr_context()->createBackendTexture(
m_shape.sizeInPixels.width(), m_shape.sizeInPixels.height(), colorType,
GrMipMapped::kNo, GrRenderable::kYes);
DCHECK(m_texture.isValid());
if (m_texture.backend() == GrBackendApi::kVulkan) {
#if BUILDFLAG(ENABLE_VULKAN)
GrVkImageInfo info;
bool result = m_texture.getVkImageInfo(&info);
DCHECK(result);
m_estimatedSize = info.fAlloc.fSize;
#else
NOTREACHED();
#endif
} else {
auto info = SkImageInfo::Make(m_shape.sizeInPixels.width(), m_shape.sizeInPixels.height(),
colorType, kUnpremul_SkAlphaType);
m_estimatedSize = info.computeMinByteSize();
}
m_parent->memory_type_tracker_->TrackMemAlloc(m_estimatedSize);
SkSurfaceProps surfaceProps = SkSurfaceProps{0, kUnknown_SkPixelGeometry};
m_surface = SkSurface::MakeFromBackendTexture(
m_parent->m_contextState->gr_context(), m_texture,
m_parent->capabilities_.output_surface_origin == gfx::SurfaceOrigin::kTopLeft
? kTopLeft_GrSurfaceOrigin
: kBottomLeft_GrSurfaceOrigin,
0 /* sampleCount */, colorType, m_shape.colorSpace.ToSkColorSpace(),
&surfaceProps);
}
~Buffer()
{
DeleteGrBackendTexture(m_parent->m_contextState.get(), &m_texture);
m_parent->memory_type_tracker_->TrackMemFree(m_estimatedSize);
}
void createFence()
{
m_fence = CompositorResourceFence::create();
}
void consumeFence()
{
if (m_fence) {
m_fence->wait();
m_fence.reset();
}
}
const Shape &shape() const { return m_shape; }
const GrBackendTexture &texture() const { return m_texture; }
SkSurface *surface() const { return m_surface.get(); }
private:
DisplaySkiaOutputDevice *m_parent;
Shape m_shape;
GrBackendTexture m_texture;
sk_sp<SkSurface> m_surface;
uint64_t m_estimatedSize = 0;
scoped_refptr<CompositorResourceFence> m_fence;
};
DisplaySkiaOutputDevice::DisplaySkiaOutputDevice(
scoped_refptr<gpu::SharedContextState> contextState,
gpu::MemoryTracker *memoryTracker,
DidSwapBufferCompleteCallback didSwapBufferCompleteCallback)
: SkiaOutputDevice(
contextState->gr_context(),
memoryTracker,
didSwapBufferCompleteCallback)
, Compositor(Compositor::Type::OpenGL)
, m_contextState(contextState)
{
capabilities_.uses_default_gl_framebuffer = false;
capabilities_.supports_surfaceless = true;
capabilities_.sk_color_types[static_cast<int>(gfx::BufferFormat::RGBA_8888)] =
kRGBA_8888_SkColorType;
capabilities_.sk_color_types[static_cast<int>(gfx::BufferFormat::RGBX_8888)] =
kRGBA_8888_SkColorType;
capabilities_.sk_color_types[static_cast<int>(gfx::BufferFormat::BGRA_8888)] =
kRGBA_8888_SkColorType;
capabilities_.sk_color_types[static_cast<int>(gfx::BufferFormat::BGRX_8888)] =
kRGBA_8888_SkColorType;
}
DisplaySkiaOutputDevice::~DisplaySkiaOutputDevice()
{
}
void DisplaySkiaOutputDevice::SetFrameSinkId(const viz::FrameSinkId &id)
{
bind(id);
}
bool DisplaySkiaOutputDevice::Reshape(const gfx::Size& sizeInPixels,
float devicePixelRatio,
const gfx::ColorSpace& colorSpace,
gfx::BufferFormat format,
gfx::OverlayTransform transform)
{
m_shape = Shape{sizeInPixels, devicePixelRatio, colorSpace, format};
DCHECK_EQ(transform, gfx::OVERLAY_TRANSFORM_NONE);
return true;
}
void DisplaySkiaOutputDevice::SwapBuffers(BufferPresentedCallback feedback,
viz::OutputSurfaceFrame frame)
{
DCHECK(m_backBuffer);
StartSwapBuffers(std::move(feedback));
m_frame = std::move(frame);
m_backBuffer->createFence();
{
QMutexLocker locker(&m_mutex);
m_taskRunner = base::ThreadTaskRunnerHandle::Get();
m_middleBuffer = std::move(m_backBuffer);
m_readyToUpdate = true;
}
if (auto obs = observer())
obs->readyToSwap();
}
void DisplaySkiaOutputDevice::EnsureBackbuffer()
{
}
void DisplaySkiaOutputDevice::DiscardBackbuffer()
{
}
SkSurface *DisplaySkiaOutputDevice::BeginPaint(bool allocate_frame_buffer,
std::vector<GrBackendSemaphore> *)
{
Q_UNUSED(allocate_frame_buffer); // FIXME?
if (!m_backBuffer || m_backBuffer->shape() != m_shape)
m_backBuffer = std::make_unique<Buffer>(this);
return m_backBuffer->surface();
}
void DisplaySkiaOutputDevice::EndPaint()
{
}
void DisplaySkiaOutputDevice::swapFrame()
{
QMutexLocker locker(&m_mutex);
if (m_readyToUpdate) {
std::swap(m_middleBuffer, m_frontBuffer);
m_taskRunner->PostTask(FROM_HERE,
base::BindOnce(&DisplaySkiaOutputDevice::SwapBuffersFinished,
base::Unretained(this)));
m_taskRunner.reset();
m_readyToUpdate = false;
}
}
void DisplaySkiaOutputDevice::waitForTexture()
{
if (m_frontBuffer)
m_frontBuffer->consumeFence();
}
int DisplaySkiaOutputDevice::textureId()
{
if (!m_frontBuffer)
return 0;
GrGLTextureInfo info;
if (!m_frontBuffer->texture().getGLTextureInfo(&info))
return 0;
return info.fID;
}
QSize DisplaySkiaOutputDevice::size()
{
return m_frontBuffer ? toQt(m_frontBuffer->shape().sizeInPixels) : QSize();
}
bool DisplaySkiaOutputDevice::hasAlphaChannel()
{
return true;
}
float DisplaySkiaOutputDevice::devicePixelRatio()
{
return m_frontBuffer ? m_frontBuffer->shape().devicePixelRatio : 1;
}
void DisplaySkiaOutputDevice::SwapBuffersFinished()
{
{
QMutexLocker locker(&m_mutex);
m_backBuffer = std::move(m_middleBuffer);
}
FinishSwapBuffers(gfx::SwapCompletionResult(gfx::SwapResult::SWAP_ACK),
gfx::Size(m_shape.sizeInPixels.width(), m_shape.sizeInPixels.height()),
std::move(m_frame));
}
} // namespace QtWebEngineCore
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