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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/viz/service/display_embedder/skia_output_device_webview.h"
#include <utility>
#include "gpu/command_buffer/common/swap_buffers_complete_params.h"
#include "gpu/command_buffer/service/gl_utils.h"
#include "gpu/command_buffer/service/shared_context_state.h"
#include "skia/ext/legacy_display_globals.h"
#include "third_party/skia/include/core/SkSurface.h"
#include "third_party/skia/include/gpu/ganesh/SkSurfaceGanesh.h"
#include "third_party/skia/include/gpu/ganesh/gl/GrGLBackendSurface.h"
#include "third_party/skia/include/gpu/ganesh/gl/GrGLTypes.h"
#include "ui/gfx/buffer_format_util.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_surface.h"
namespace viz {
namespace {
constexpr auto kSurfaceColorType = kRGBA_8888_SkColorType;
}
SkiaOutputDeviceWebView::SkiaOutputDeviceWebView(
gpu::SharedContextState* context_state,
scoped_refptr<gl::GLSurface> gl_surface,
scoped_refptr<gpu::MemoryTracker> memory_tracker,
DidSwapBufferCompleteCallback did_swap_buffer_complete_callback)
: SkiaOutputDevice(context_state->gr_context(),
context_state->graphite_shared_context(),
std::move(memory_tracker),
std::move(did_swap_buffer_complete_callback)),
context_state_(context_state),
gl_surface_(std::move(gl_surface)) {
// Always set uses_default_gl_framebuffer to true, since
// GrSurfaceCharacterization created for GL fbo0 is compatible with
// SkSurface wrappers non GL fbo0.
capabilities_.uses_default_gl_framebuffer = true;
capabilities_.output_surface_origin = gl_surface_->GetOrigin();
capabilities_.pending_swap_params.max_pending_swaps =
gl_surface_->GetBufferCount() - 1;
DCHECK(context_state_->gr_context());
DCHECK(context_state_->context());
capabilities_.sk_color_type_map[SinglePlaneFormat::kRGBA_8888] =
kSurfaceColorType;
capabilities_.sk_color_type_map[SinglePlaneFormat::kBGRA_8888] =
kSurfaceColorType;
}
SkiaOutputDeviceWebView::~SkiaOutputDeviceWebView() = default;
bool SkiaOutputDeviceWebView::Reshape(const ReshapeParams& params) {
DCHECK_EQ(params.transform, gfx::OVERLAY_TRANSFORM_NONE);
gfx::Size size = params.GfxSize();
if (!gl_surface_->Resize(size, params.device_scale_factor, params.color_space,
/*has_alpha=*/true)) {
DLOG(ERROR) << "Failed to resize.";
return false;
}
size_ = size;
sk_color_space_ = params.image_info.refColorSpace();
InitSkiaSurface(gl_surface_->GetBackingFramebufferObject());
return !!sk_surface_;
}
void SkiaOutputDeviceWebView::Present(
const std::optional<gfx::Rect>& update_rect,
BufferPresentedCallback feedback,
OutputSurfaceFrame frame) {
DCHECK(!update_rect);
StartSwapBuffers({});
gfx::Size surface_size =
gfx::Size(sk_surface_->width(), sk_surface_->height());
auto data = frame.data;
FinishSwapBuffers(gfx::SwapCompletionResult(
gl_surface_->SwapBuffers(std::move(feedback), data)),
surface_size, std::move(frame));
}
SkSurface* SkiaOutputDeviceWebView::BeginPaint(
std::vector<GrBackendSemaphore>* end_semaphores) {
DCHECK(sk_surface_);
unsigned int fbo = gl_surface_->GetBackingFramebufferObject();
if (last_frame_buffer_object_ != fbo) {
InitSkiaSurface(fbo);
}
return sk_surface_.get();
}
void SkiaOutputDeviceWebView::EndPaint() {}
void SkiaOutputDeviceWebView::InitSkiaSurface(unsigned int fbo) {
last_frame_buffer_object_ = fbo;
GrGLFramebufferInfo framebuffer_info;
framebuffer_info.fFBOID = fbo;
framebuffer_info.fFormat = GL_RGBA8;
SkColorType color_type = kSurfaceColorType;
auto render_target =
GrBackendRenderTargets::MakeGL(size_.width(), size_.height(),
/*sampleCnt=*/0,
/*stencilBits=*/0, framebuffer_info);
auto origin = (gl_surface_->GetOrigin() == gfx::SurfaceOrigin::kTopLeft)
? kTopLeft_GrSurfaceOrigin
: kBottomLeft_GrSurfaceOrigin;
SkSurfaceProps surface_props;
sk_surface_ = SkSurfaces::WrapBackendRenderTarget(
context_state_->gr_context(), render_target, origin, color_type,
sk_color_space_, &surface_props);
if (!sk_surface_) {
LOG(ERROR) << "Couldn't create surface: "
<< context_state_->gr_context()->abandoned() << " " << color_type
<< " " << framebuffer_info.fFBOID << " "
<< framebuffer_info.fFormat << " " << size_.ToString();
}
}
} // namespace viz
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