1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
// Copyright 2012 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 "cc/output/delegating_renderer.h"
#include <set>
#include <string>
#include <vector>
#include "base/debug/trace_event.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "cc/output/compositor_frame_ack.h"
#include "cc/quads/checkerboard_draw_quad.h"
#include "cc/quads/debug_border_draw_quad.h"
#include "cc/quads/render_pass.h"
#include "cc/quads/render_pass_draw_quad.h"
#include "cc/quads/solid_color_draw_quad.h"
#include "cc/quads/texture_draw_quad.h"
#include "cc/quads/tile_draw_quad.h"
#include "cc/quads/yuv_video_draw_quad.h"
#include "cc/resources/resource_provider.h"
#include "gpu/command_buffer/client/context_support.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "gpu/command_buffer/common/gpu_memory_allocation.h"
#include "third_party/khronos/GLES2/gl2ext.h"
namespace cc {
scoped_ptr<DelegatingRenderer> DelegatingRenderer::Create(
RendererClient* client,
const LayerTreeSettings* settings,
OutputSurface* output_surface,
ResourceProvider* resource_provider) {
scoped_ptr<DelegatingRenderer> renderer(new DelegatingRenderer(
client, settings, output_surface, resource_provider));
if (!renderer->Initialize())
return scoped_ptr<DelegatingRenderer>();
return renderer.Pass();
}
DelegatingRenderer::DelegatingRenderer(RendererClient* client,
const LayerTreeSettings* settings,
OutputSurface* output_surface,
ResourceProvider* resource_provider)
: Renderer(client, settings),
output_surface_(output_surface),
resource_provider_(resource_provider),
visible_(true) {
DCHECK(resource_provider_);
}
bool DelegatingRenderer::Initialize() {
capabilities_.using_partial_swap = false;
capabilities_.max_texture_size = resource_provider_->max_texture_size();
capabilities_.best_texture_format = resource_provider_->best_texture_format();
capabilities_.allow_partial_texture_updates = false;
capabilities_.using_offscreen_context3d = false;
if (!output_surface_->context_provider()) {
capabilities_.using_shared_memory_resources = true;
capabilities_.using_map_image = settings_->use_map_image;
return true;
}
const ContextProvider::Capabilities& caps =
output_surface_->context_provider()->ContextCapabilities();
DCHECK(!caps.gpu.iosurface || caps.gpu.texture_rectangle);
capabilities_.using_egl_image = caps.gpu.egl_image_external;
capabilities_.using_map_image =
settings_->use_map_image && caps.gpu.map_image;
capabilities_.allow_rasterize_on_demand = false;
return true;
}
DelegatingRenderer::~DelegatingRenderer() {}
const RendererCapabilitiesImpl& DelegatingRenderer::Capabilities() const {
return capabilities_;
}
bool DelegatingRenderer::CanReadPixels() const { return false; }
static ResourceProvider::ResourceId AppendToArray(
ResourceProvider::ResourceIdArray* array,
ResourceProvider::ResourceId id) {
array->push_back(id);
return id;
}
void DelegatingRenderer::DrawFrame(RenderPassList* render_passes_in_draw_order,
ContextProvider* offscreen_context_provider,
float device_scale_factor,
const gfx::Rect& device_viewport_rect,
const gfx::Rect& device_clip_rect,
bool allow_partial_swap,
bool disable_picture_quad_image_filtering) {
TRACE_EVENT0("cc", "DelegatingRenderer::DrawFrame");
DCHECK(!delegated_frame_data_);
delegated_frame_data_ = make_scoped_ptr(new DelegatedFrameData);
DelegatedFrameData& out_data = *delegated_frame_data_;
// Move the render passes and resources into the |out_frame|.
out_data.render_pass_list.swap(*render_passes_in_draw_order);
// Collect all resource ids in the render passes into a ResourceIdArray.
ResourceProvider::ResourceIdArray resources;
DrawQuad::ResourceIteratorCallback append_to_array =
base::Bind(&AppendToArray, &resources);
for (size_t i = 0; i < out_data.render_pass_list.size(); ++i) {
RenderPass* render_pass = out_data.render_pass_list.at(i);
for (size_t j = 0; j < render_pass->quad_list.size(); ++j)
render_pass->quad_list[j]->IterateResources(append_to_array);
}
resource_provider_->PrepareSendToParent(resources, &out_data.resource_list);
}
void DelegatingRenderer::SwapBuffers(const CompositorFrameMetadata& metadata) {
TRACE_EVENT0("cc", "DelegatingRenderer::SwapBuffers");
CompositorFrame compositor_frame;
compositor_frame.metadata = metadata;
compositor_frame.delegated_frame_data = delegated_frame_data_.Pass();
output_surface_->SwapBuffers(&compositor_frame);
}
void DelegatingRenderer::GetFramebufferPixels(void* pixels,
const gfx::Rect& rect) {
NOTREACHED();
}
void DelegatingRenderer::ReceiveSwapBuffersAck(
const CompositorFrameAck& ack) {
resource_provider_->ReceiveReturnsFromParent(ack.resources);
}
bool DelegatingRenderer::IsContextLost() {
ContextProvider* context_provider = output_surface_->context_provider();
if (!context_provider)
return false;
return context_provider->IsContextLost();
}
void DelegatingRenderer::SetVisible(bool visible) {
if (visible == visible_)
return;
visible_ = visible;
ContextProvider* context_provider = output_surface_->context_provider();
if (!visible_) {
TRACE_EVENT0("cc", "DelegatingRenderer::SetVisible dropping resources");
resource_provider_->ReleaseCachedData();
if (context_provider)
context_provider->ContextGL()->Flush();
}
// We loop visibility to the GPU process, since that's what manages memory.
// That will allow it to feed us with memory allocations that we can act
// upon.
DCHECK(context_provider);
context_provider->ContextSupport()->SetSurfaceVisible(visible);
}
void DelegatingRenderer::SendManagedMemoryStats(size_t bytes_visible,
size_t bytes_visible_and_nearby,
size_t bytes_allocated) {
ContextProvider* context_provider = output_surface_->context_provider();
if (!context_provider) {
// TODO(piman): software path.
NOTIMPLEMENTED();
return;
}
gpu::ManagedMemoryStats stats;
stats.bytes_required = bytes_visible;
stats.bytes_nice_to_have = bytes_visible_and_nearby;
stats.bytes_allocated = bytes_allocated;
stats.backbuffer_requested = false;
context_provider->ContextSupport()->SendManagedMemoryStats(stats);
}
} // namespace cc
|