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| 1 // Copyright 2012 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 "cc/output/delegating_renderer.h" | |
| 6 | |
| 7 #include <set> | |
| 8 #include <string> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/trace_event/trace_event.h" | |
| 12 #include "cc/output/compositor_frame_ack.h" | |
| 13 #include "cc/output/context_provider.h" | |
| 14 #include "cc/quads/draw_quad.h" | |
| 15 #include "cc/quads/render_pass.h" | |
| 16 #include "cc/resources/resource_provider.h" | |
| 17 #include "gpu/command_buffer/client/context_support.h" | |
| 18 #include "gpu/command_buffer/client/gles2_interface.h" | |
| 19 | |
| 20 | |
| 21 namespace cc { | |
| 22 | |
| 23 scoped_ptr<DelegatingRenderer> DelegatingRenderer::Create( | |
| 24 RendererClient* client, | |
| 25 const RendererSettings* settings, | |
| 26 OutputSurface* output_surface, | |
| 27 ResourceProvider* resource_provider) { | |
| 28 return make_scoped_ptr(new DelegatingRenderer( | |
| 29 client, settings, output_surface, resource_provider)); | |
| 30 } | |
| 31 | |
| 32 DelegatingRenderer::DelegatingRenderer(RendererClient* client, | |
| 33 const RendererSettings* settings, | |
| 34 OutputSurface* output_surface, | |
| 35 ResourceProvider* resource_provider) | |
| 36 : Renderer(client, settings), | |
| 37 output_surface_(output_surface), | |
| 38 resource_provider_(resource_provider) { | |
| 39 DCHECK(resource_provider_); | |
| 40 | |
| 41 capabilities_.using_partial_swap = false; | |
| 42 capabilities_.max_texture_size = resource_provider_->max_texture_size(); | |
| 43 capabilities_.best_texture_format = resource_provider_->best_texture_format(); | |
| 44 capabilities_.allow_partial_texture_updates = | |
| 45 output_surface->capabilities().can_force_reclaim_resources; | |
| 46 | |
| 47 if (!output_surface_->context_provider()) { | |
| 48 capabilities_.using_shared_memory_resources = true; | |
| 49 } else { | |
| 50 const ContextProvider::Capabilities& caps = | |
| 51 output_surface_->context_provider()->ContextCapabilities(); | |
| 52 | |
| 53 DCHECK(!caps.gpu.iosurface || caps.gpu.texture_rectangle); | |
| 54 | |
| 55 capabilities_.using_egl_image = caps.gpu.egl_image_external; | |
| 56 capabilities_.using_image = caps.gpu.image; | |
| 57 | |
| 58 capabilities_.allow_rasterize_on_demand = false; | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 DelegatingRenderer::~DelegatingRenderer() {} | |
| 63 | |
| 64 const RendererCapabilitiesImpl& DelegatingRenderer::Capabilities() const { | |
| 65 return capabilities_; | |
| 66 } | |
| 67 | |
| 68 static ResourceProvider::ResourceId AppendToArray( | |
| 69 ResourceProvider::ResourceIdArray* array, | |
| 70 ResourceProvider::ResourceId id) { | |
| 71 array->push_back(id); | |
| 72 return id; | |
| 73 } | |
| 74 | |
| 75 void DelegatingRenderer::DrawFrame(RenderPassList* render_passes_in_draw_order, | |
| 76 float device_scale_factor, | |
| 77 const gfx::Rect& device_viewport_rect, | |
| 78 const gfx::Rect& device_clip_rect, | |
| 79 bool disable_picture_quad_image_filtering) { | |
| 80 TRACE_EVENT0("cc", "DelegatingRenderer::DrawFrame"); | |
| 81 | |
| 82 DCHECK(!delegated_frame_data_); | |
| 83 | |
| 84 delegated_frame_data_ = make_scoped_ptr(new DelegatedFrameData); | |
| 85 DelegatedFrameData& out_data = *delegated_frame_data_; | |
| 86 out_data.device_scale_factor = device_scale_factor; | |
| 87 // Move the render passes and resources into the |out_frame|. | |
| 88 out_data.render_pass_list.swap(*render_passes_in_draw_order); | |
| 89 | |
| 90 // Collect all resource ids in the render passes into a ResourceIdArray. | |
| 91 ResourceProvider::ResourceIdArray resources; | |
| 92 DrawQuad::ResourceIteratorCallback append_to_array = | |
| 93 base::Bind(&AppendToArray, &resources); | |
| 94 for (const auto& render_pass : out_data.render_pass_list) { | |
| 95 for (const auto& quad : render_pass->quad_list) | |
| 96 quad->IterateResources(append_to_array); | |
| 97 } | |
| 98 resource_provider_->PrepareSendToParent(resources, &out_data.resource_list); | |
| 99 } | |
| 100 | |
| 101 void DelegatingRenderer::SwapBuffers(const CompositorFrameMetadata& metadata) { | |
| 102 TRACE_EVENT0("cc,benchmark", "DelegatingRenderer::SwapBuffers"); | |
| 103 CompositorFrame compositor_frame; | |
| 104 compositor_frame.metadata = metadata; | |
| 105 compositor_frame.delegated_frame_data = delegated_frame_data_.Pass(); | |
| 106 output_surface_->SwapBuffers(&compositor_frame); | |
| 107 } | |
| 108 | |
| 109 void DelegatingRenderer::ReceiveSwapBuffersAck( | |
| 110 const CompositorFrameAck& ack) { | |
| 111 resource_provider_->ReceiveReturnsFromParent(ack.resources); | |
| 112 } | |
| 113 | |
| 114 void DelegatingRenderer::DidChangeVisibility() { | |
| 115 ContextProvider* context_provider = output_surface_->context_provider(); | |
| 116 if (!visible()) { | |
| 117 TRACE_EVENT0("cc", "DelegatingRenderer::SetVisible dropping resources"); | |
| 118 resource_provider_->ReleaseCachedData(); | |
| 119 if (context_provider) { | |
| 120 context_provider->DeleteCachedResources(); | |
| 121 context_provider->ContextGL()->Flush(); | |
| 122 } | |
| 123 } | |
| 124 // We loop visibility to the GPU process, since that's what manages memory. | |
| 125 // That will allow it to feed us with memory allocations that we can act | |
| 126 // upon. | |
| 127 if (context_provider) | |
| 128 context_provider->ContextSupport()->SetSurfaceVisible(visible()); | |
| 129 } | |
| 130 | |
| 131 } // namespace cc | |
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