cef/tests/cefclient/browser/osr_render_handler_win_d3d11.cc

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// Copyright 2018 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.
#include "tests/cefclient/browser/osr_render_handler_win_d3d11.h"
#include "include/base/cef_callback.h"
#include "include/wrapper/cef_closure_task.h"
#include "include/wrapper/cef_helpers.h"
#include "tests/shared/browser/util_win.h"
namespace client {
BrowserLayer::BrowserLayer(const std::shared_ptr<d3d11::Device>& device)
: d3d11::Layer(device, true /* flip */) {
frame_buffer_ = std::make_shared<d3d11::FrameBuffer>(device_);
}
void BrowserLayer::render(const std::shared_ptr<d3d11::Context>& ctx) {
// Use the base class method to draw our texture.
render_texture(ctx, frame_buffer_->texture());
}
void BrowserLayer::on_paint(void* share_handle) {
frame_buffer_->on_paint(share_handle);
}
std::pair<uint32_t, uint32_t> BrowserLayer::texture_size() const {
const auto texture = frame_buffer_->texture();
return std::make_pair(texture->width(), texture->height());
}
PopupLayer::PopupLayer(const std::shared_ptr<d3d11::Device>& device)
: BrowserLayer(device) {}
void PopupLayer::set_bounds(const CefRect& bounds) {
const auto comp = composition();
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if (!comp) {
return;
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}
const auto outer_width = comp->width();
const auto outer_height = comp->height();
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if (outer_width == 0 || outer_height == 0) {
return;
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}
original_bounds_ = bounds;
bounds_ = bounds;
// If x or y are negative, move them to 0.
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if (bounds_.x < 0) {
bounds_.x = 0;
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}
if (bounds_.y < 0) {
bounds_.y = 0;
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}
// If popup goes outside the view, try to reposition origin
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if (bounds_.x + bounds_.width > outer_width) {
bounds_.x = outer_width - bounds_.width;
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}
if (bounds_.y + bounds_.height > outer_height) {
bounds_.y = outer_height - bounds_.height;
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}
// If x or y became negative, move them to 0 again.
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if (bounds_.x < 0) {
bounds_.x = 0;
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}
if (bounds_.y < 0) {
bounds_.y = 0;
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}
const auto x = bounds_.x / float(outer_width);
const auto y = bounds_.y / float(outer_height);
const auto w = bounds_.width / float(outer_width);
const auto h = bounds_.height / float(outer_height);
move(x, y, w, h);
}
OsrRenderHandlerWinD3D11::OsrRenderHandlerWinD3D11(
const OsrRendererSettings& settings,
HWND hwnd)
: OsrRenderHandlerWin(settings, hwnd), start_time_(0) {}
bool OsrRenderHandlerWinD3D11::Initialize(CefRefPtr<CefBrowser> browser,
int width,
int height) {
CEF_REQUIRE_UI_THREAD();
// Create a D3D11 device instance.
device_ = d3d11::Device::create();
DCHECK(device_);
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if (!device_) {
return false;
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}
// Create a D3D11 swapchain for the window.
swap_chain_ = device_->create_swapchain(hwnd());
DCHECK(swap_chain_);
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if (!swap_chain_) {
return false;
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}
// Create the browser layer.
browser_layer_ = std::make_shared<BrowserLayer>(device_);
// Set up the composition.
composition_ = std::make_shared<d3d11::Composition>(device_, width, height);
composition_->add_layer(browser_layer_);
// Size to the whole composition.
browser_layer_->move(0.0f, 0.0f, 1.0f, 1.0f);
start_time_ = GetTimeNow();
SetBrowser(browser);
return true;
}
void OsrRenderHandlerWinD3D11::SetSpin(float spinX, float spinY) {
CEF_REQUIRE_UI_THREAD();
// Spin support is not implemented.
}
void OsrRenderHandlerWinD3D11::IncrementSpin(float spinDX, float spinDY) {
CEF_REQUIRE_UI_THREAD();
// Spin support is not implemented.
}
bool OsrRenderHandlerWinD3D11::IsOverPopupWidget(int x, int y) const {
CEF_REQUIRE_UI_THREAD();
return popup_layer_ && popup_layer_->contains(x, y);
}
int OsrRenderHandlerWinD3D11::GetPopupXOffset() const {
CEF_REQUIRE_UI_THREAD();
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if (popup_layer_) {
return popup_layer_->xoffset();
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}
return 0;
}
int OsrRenderHandlerWinD3D11::GetPopupYOffset() const {
CEF_REQUIRE_UI_THREAD();
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if (popup_layer_) {
return popup_layer_->yoffset();
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}
return 0;
}
void OsrRenderHandlerWinD3D11::OnPopupShow(CefRefPtr<CefBrowser> browser,
bool show) {
CEF_REQUIRE_UI_THREAD();
if (show) {
DCHECK(!popup_layer_);
// Create a new layer.
popup_layer_ = std::make_shared<PopupLayer>(device_);
composition_->add_layer(popup_layer_);
} else {
DCHECK(popup_layer_);
composition_->remove_layer(popup_layer_);
popup_layer_ = nullptr;
Render();
}
}
void OsrRenderHandlerWinD3D11::OnPopupSize(CefRefPtr<CefBrowser> browser,
const CefRect& rect) {
CEF_REQUIRE_UI_THREAD();
popup_layer_->set_bounds(rect);
}
void OsrRenderHandlerWinD3D11::OnPaint(
CefRefPtr<CefBrowser> browser,
CefRenderHandler::PaintElementType type,
const CefRenderHandler::RectList& dirtyRects,
const void* buffer,
int width,
int height) {
// Not used with this implementation.
NOTREACHED();
}
void OsrRenderHandlerWinD3D11::OnAcceleratedPaint(
CefRefPtr<CefBrowser> browser,
CefRenderHandler::PaintElementType type,
const CefRenderHandler::RectList& dirtyRects,
void* share_handle) {
CEF_REQUIRE_UI_THREAD();
if (type == PET_POPUP) {
popup_layer_->on_paint(share_handle);
} else {
browser_layer_->on_paint(share_handle);
}
Render();
}
void OsrRenderHandlerWinD3D11::Render() {
// Update composition + layers based on time.
const auto t = (GetTimeNow() - start_time_) / 1000000.0;
composition_->tick(t);
auto ctx = device_->immedidate_context();
swap_chain_->bind(ctx);
const auto texture_size = browser_layer_->texture_size();
// Resize the composition and swap chain to match the texture if necessary.
composition_->resize(!send_begin_frame(), texture_size.first,
texture_size.second);
swap_chain_->resize(texture_size.first, texture_size.second);
// Clear the render target.
swap_chain_->clear(0.0f, 0.0f, 1.0f, 1.0f);
// Render the scene.
composition_->render(ctx);
// Present to window.
swap_chain_->present(send_begin_frame() ? 0 : 1);
}
} // namespace client