| // Copyright 2016 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. |
| |
| #include "platform/graphics/OffscreenCanvasFrameDispatcherImpl.h" |
| |
| #include "cc/output/compositor_frame.h" |
| #include "cc/output/delegated_frame_data.h" |
| #include "cc/quads/render_pass.h" |
| #include "cc/quads/shared_quad_state.h" |
| #include "cc/quads/solid_color_draw_quad.h" |
| #include "public/platform/InterfaceProvider.h" |
| #include "public/platform/Platform.h" |
| #include "third_party/skia/include/core/SkColor.h" |
| #include "third_party/skia/include/core/SkXfermode.h" |
| #include "ui/gfx/geometry/rect.h" |
| #include "ui/gfx/transform.h" |
| |
| namespace blink { |
| |
| OffscreenCanvasFrameDispatcherImpl::OffscreenCanvasFrameDispatcherImpl(uint32_t clientId, uint32_t localId, uint64_t nonce, int width, int height) |
| : m_surfaceId(cc::SurfaceId(clientId, localId, nonce)) |
| , m_width(width) |
| , m_height(height) |
| { |
| DCHECK(!m_service.is_bound()); |
| Platform::current()->interfaceProvider()->getInterface(mojo::GetProxy(&m_service)); |
| } |
| |
| void OffscreenCanvasFrameDispatcherImpl::dispatchFrame() |
| { |
| // TODO(563852/xlai): Currently this is just a simple solid-color compositor |
| // frame. We need to update this function to extract the image data from canvas. |
| cc::CompositorFrame frame; |
| frame.metadata.device_scale_factor = 1.0f; |
| frame.delegated_frame_data.reset(new cc::DelegatedFrameData); |
| |
| const gfx::Rect bounds(m_width, m_height); |
| const cc::RenderPassId renderPassId(1, 1); |
| std::unique_ptr<cc::RenderPass> pass = cc::RenderPass::Create(); |
| pass->SetAll(renderPassId, bounds, bounds, gfx::Transform(), false); |
| |
| cc::SharedQuadState* sqs = pass->CreateAndAppendSharedQuadState(); |
| sqs->SetAll(gfx::Transform(), bounds.size(), bounds, bounds, false, 1.f, SkXfermode::kSrcOver_Mode, 0); |
| |
| cc::SolidColorDrawQuad* quad = pass->CreateAndAppendDrawQuad<cc::SolidColorDrawQuad>(); |
| const bool forceAntialiasingOff = false; |
| quad->SetNew(sqs, bounds, bounds, SK_ColorGREEN, forceAntialiasingOff); |
| |
| frame.delegated_frame_data->render_pass_list.push_back(std::move(pass)); |
| |
| m_service->SubmitCompositorFrame(m_surfaceId, std::move(frame)); |
| } |
| |
| } // namespace blink |