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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "platform/graphics/OffscreenCanvasFrameDispatcherImpl.h" | |
6 | |
7 #include "cc/output/delegated_frame_data.h" | |
8 #include "cc/quads/render_pass.h" | |
9 #include "cc/quads/shared_quad_state.h" | |
10 #include "cc/quads/solid_color_draw_quad.h" | |
11 #include "public/platform/InterfaceProvider.h" | |
12 #include "public/platform/Platform.h" | |
13 #include "third_party/skia/include/core/SkColor.h" | |
14 #include "third_party/skia/include/core/SkXfermode.h" | |
15 #include "ui/gfx/geometry/rect.h" | |
16 #include "ui/gfx/transform.h" | |
17 | |
18 namespace blink { | |
19 | |
20 OffscreenCanvasFrameDispatcherImpl::OffscreenCanvasFrameDispatcherImpl(uint32_t clientId, uint32_t localId, uint64_t nonce) | |
21 : m_surfaceId(cc::SurfaceId(clientId, localId, nonce)) | |
22 { | |
23 DCHECK(!m_service.is_bound()); | |
24 Platform::current()->interfaceProvider()->getInterface(mojo::GetProxy(&m_ser vice)); | |
25 } | |
26 | |
27 void OffscreenCanvasFrameDispatcherImpl::uploadImage(int width, int height) | |
danakj
2016/09/02 19:12:43
I thought width and height never change, why arent
Justin Novosad
2016/09/02 19:20:08
This is just temporary. Once we start pushing actu
danakj
2016/09/02 19:20:59
Do sizes change? Because then we have to deal with
xlai (Olivia)
2016/09/02 20:10:07
Made width and height to be const member in Offscr
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28 { | |
29 // TODO(563852): Currently this is just a simple solid-color compositor fram e. | |
30 // We need to update this function to extract the image data from canvas. | |
31 cc::CompositorFrame frame; | |
32 frame.metadata.device_scale_factor = 1.0f; | |
33 frame.delegated_frame_data.reset(new cc::DelegatedFrameData()); | |
danakj
2016/09/02 19:12:42
nit: no () needed
xlai (Olivia)
2016/09/02 20:10:07
Done.
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34 frame.delegated_frame_data->resource_list.resize(0u); | |
danakj
2016/09/02 19:12:42
it already starts empty so i dont think u need thi
xlai (Olivia)
2016/09/02 20:10:06
Done.
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35 | |
36 const gfx::Rect bounds(width, height); | |
37 const cc::RenderPassId renderPassId(1, 1); | |
38 std::unique_ptr<cc::RenderPass> pass = cc::RenderPass::Create(); | |
39 pass->SetAll(renderPassId, bounds, bounds, gfx::Transform(), true); | |
danakj
2016/09/02 19:12:42
background is normally not transparent for the roo
xlai (Olivia)
2016/09/02 20:10:06
Yah you're right; I think it's more logical if can
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40 | |
41 cc::SharedQuadState* sqs = pass->CreateAndAppendSharedQuadState(); | |
42 sqs->SetAll(gfx::Transform(), bounds.size(), bounds, bounds, false, 1.f, SkX fermode::kSrc_Mode, 0); | |
danakj
2016/09/02 19:12:42
pass an empty clip rect since is_clipped is false
xlai (Olivia)
2016/09/02 20:10:07
Done.
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43 | |
44 cc::SolidColorDrawQuad* quad = pass->CreateAndAppendDrawQuad<cc::SolidColorD rawQuad>(); | |
45 const bool forceAntialiasingOff = false; | |
46 const gfx::Rect opaqueRect(0, 0, 0, 0); | |
47 const bool needsBlending = true; | |
48 quad->SetAll(sqs, bounds, opaqueRect, bounds, needsBlending, SK_ColorGREEN, forceAntialiasingOff); | |
danakj
2016/09/02 19:12:42
you can use SetNew here it's helpful and decides t
xlai (Olivia)
2016/09/02 20:10:06
Done. The solidcolorQuad::setNew() will set needsb
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49 | |
50 frame.delegated_frame_data->render_pass_list.push_back(std::move(pass)); | |
51 | |
52 m_service->SubmitCompositorFrame(m_surfaceId, std::move(frame)); | |
danakj
2016/09/02 19:12:42
The frame doesn't look totally wrong or anything t
xlai (Olivia)
2016/09/02 20:10:06
I see. That's a useful way to debug for me. Right
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53 | |
54 } | |
55 | |
56 } // namespace blink | |
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