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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/gl/gl_surface.h"
#include "base/check.h"
#include "base/notreached.h"
#include "ui/gfx/swap_result.h"
#include "ui/gl/gl_context.h"
#include "ui/gl/gl_surface_format.h"
namespace gl {
namespace {
constinit thread_local GLSurface* current_surface = nullptr;
} // namespace
// static
GpuPreference GLSurface::forced_gpu_preference_ = GpuPreference::kDefault;
GLSurface::GLSurface() = default;
bool GLSurface::Initialize() {
return Initialize(GLSurfaceFormat());
}
bool GLSurface::Initialize(GLSurfaceFormat format) {
return true;
}
bool GLSurface::Resize(const gfx::Size& size,
float scale_factor,
const gfx::ColorSpace& color_space,
bool has_alpha) {
NOTIMPLEMENTED();
return false;
}
bool GLSurface::Recreate() {
NOTIMPLEMENTED();
return false;
}
bool GLSurface::SupportsPostSubBuffer() {
return false;
}
bool GLSurface::SupportsAsyncSwap() {
return false;
}
unsigned int GLSurface::GetBackingFramebufferObject() {
return 0;
}
void GLSurface::SwapBuffersAsync(SwapCompletionCallback completion_callback,
PresentationCallback presentation_callback,
gfx::FrameData data) {
NOTREACHED();
}
gfx::SwapResult GLSurface::PostSubBuffer(int x,
int y,
int width,
int height,
PresentationCallback callback,
gfx::FrameData data) {
return gfx::SwapResult::SWAP_FAILED;
}
void GLSurface::PostSubBufferAsync(int x,
int y,
int width,
int height,
SwapCompletionCallback completion_callback,
PresentationCallback presentation_callback,
gfx::FrameData data) {
NOTREACHED();
}
bool GLSurface::OnMakeCurrent(GLContext* context) {
return true;
}
void* GLSurface::GetShareHandle() {
NOTIMPLEMENTED();
return NULL;
}
GLDisplay* GLSurface::GetGLDisplay() {
NOTIMPLEMENTED();
return NULL;
}
void* GLSurface::GetConfig() {
NOTIMPLEMENTED();
return NULL;
}
gfx::VSyncProvider* GLSurface::GetVSyncProvider() {
return NULL;
}
void GLSurface::SetVSyncEnabled(bool enabled) {}
bool GLSurface::IsSurfaceless() const {
return false;
}
gfx::SurfaceOrigin GLSurface::GetOrigin() const {
return gfx::SurfaceOrigin::kBottomLeft;
}
bool GLSurface::BuffersFlipped() const {
return false;
}
bool GLSurface::SupportsOverridePlatformSize() const {
return false;
}
bool GLSurface::SupportsSwapTimestamps() const {
return false;
}
void GLSurface::SetEnableSwapTimestamps() {
NOTREACHED();
}
int GLSurface::GetBufferCount() const {
return 2;
}
bool GLSurface::SupportsPlaneGpuFences() const {
return false;
}
EGLTimestampClient* GLSurface::GetEGLTimestampClient() {
return nullptr;
}
GLSurface* GLSurface::GetCurrent() {
return current_surface;
}
bool GLSurface::IsCurrent() {
return GetCurrent() == this;
}
// static
void GLSurface::SetForcedGpuPreference(GpuPreference gpu_preference) {
DCHECK_EQ(GpuPreference::kDefault, forced_gpu_preference_);
forced_gpu_preference_ = gpu_preference;
}
// static
GpuPreference GLSurface::AdjustGpuPreference(GpuPreference gpu_preference) {
switch (forced_gpu_preference_) {
case GpuPreference::kDefault:
return gpu_preference;
case GpuPreference::kLowPower:
case GpuPreference::kHighPerformance:
return forced_gpu_preference_;
default:
NOTREACHED();
}
}
GLSurface::~GLSurface() {
// InvalidateWeakPtrs should be called from the most concrete class.
CHECK(!weak_ptr_factory_.HasWeakPtrs());
if (GetCurrent() == this) {
ClearCurrent();
}
}
void GLSurface::ClearCurrent() {
current_surface = nullptr;
}
void GLSurface::SetCurrent() {
current_surface = this;
}
base::WeakPtr<GLSurface> GLSurface::AsWeakPtr() {
return weak_ptr_factory_.GetWeakPtr();
}
void GLSurface::InvalidateWeakPtrs() {
weak_ptr_factory_.InvalidateWeakPtrs();
}
bool GLSurface::HasWeakPtrs() {
return weak_ptr_factory_.HasWeakPtrs();
}
bool GLSurface::ExtensionsContain(const char* c_extensions, const char* name) {
DCHECK(name);
if (!c_extensions)
return false;
std::string extensions(c_extensions);
extensions += " ";
std::string delimited_name(name);
delimited_name += " ";
return extensions.find(delimited_name) != std::string::npos;
}
scoped_refptr<GLSurface> InitializeGLSurface(scoped_refptr<GLSurface> surface) {
if (!surface->Initialize(GLSurfaceFormat())) {
return nullptr;
}
return surface;
}
} // namespace gl
|
