blob: 84d6a506209923536c3aee707465274d22e4819c (
plain)
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
|
// Copyright (c) 2013 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 "content/common/gpu/client/context_provider_command_buffer.h"
#include "webkit/gpu/grcontext_for_webgraphicscontext3d.h"
namespace content {
class ContextProviderCommandBuffer::LostContextCallbackProxy
: public WebKit::WebGraphicsContext3D::WebGraphicsContextLostCallback {
public:
explicit LostContextCallbackProxy(ContextProviderCommandBuffer* provider)
: provider_(provider) {
provider_->context3d_->setContextLostCallback(this);
}
virtual void onContextLost() {
provider_->OnLostContextInternal();
}
private:
ContextProviderCommandBuffer* provider_;
};
class ContextProviderCommandBuffer::MemoryAllocationCallbackProxy
: public WebKit::WebGraphicsContext3D::
WebGraphicsMemoryAllocationChangedCallbackCHROMIUM {
public:
explicit MemoryAllocationCallbackProxy(ContextProviderCommandBuffer* provider)
: provider_(provider) {
provider_->context3d_->setMemoryAllocationChangedCallbackCHROMIUM(this);
}
virtual void onMemoryAllocationChanged(
WebKit::WebGraphicsMemoryAllocation alloc) {
provider_->OnMemoryAllocationChanged(!!alloc.gpuResourceSizeInBytes);
}
private:
ContextProviderCommandBuffer* provider_;
};
ContextProviderCommandBuffer::ContextProviderCommandBuffer()
: leak_on_destroy_(false),
destroyed_(false) {
}
ContextProviderCommandBuffer::~ContextProviderCommandBuffer() {
base::AutoLock lock(main_thread_lock_);
if (leak_on_destroy_) {
WebGraphicsContext3DCommandBufferImpl* context3d ALLOW_UNUSED =
context3d_.release();
webkit::gpu::GrContextForWebGraphicsContext3D* gr_context ALLOW_UNUSED =
gr_context_.release();
}
}
bool ContextProviderCommandBuffer::InitializeOnMainThread() {
DCHECK(!context3d_);
context3d_ = CreateOffscreenContext3d().Pass();
return !!context3d_;
}
bool ContextProviderCommandBuffer::BindToCurrentThread() {
DCHECK(context3d_);
if (lost_context_callback_proxy_)
return true;
if (!context3d_->makeContextCurrent())
return false;
lost_context_callback_proxy_.reset(new LostContextCallbackProxy(this));
return true;
}
WebGraphicsContext3DCommandBufferImpl*
ContextProviderCommandBuffer::Context3d() {
DCHECK(context3d_);
DCHECK(lost_context_callback_proxy_); // Is bound to thread.
return context3d_.get();
}
class GrContext* ContextProviderCommandBuffer::GrContext() {
DCHECK(context3d_);
DCHECK(lost_context_callback_proxy_); // Is bound to thread.
if (gr_context_)
return gr_context_->get();
gr_context_.reset(
new webkit::gpu::GrContextForWebGraphicsContext3D(context3d_.get()));
memory_allocation_callback_proxy_.reset(
new MemoryAllocationCallbackProxy(this));
return gr_context_->get();
}
void ContextProviderCommandBuffer::VerifyContexts() {
DCHECK(context3d_);
DCHECK(lost_context_callback_proxy_); // Is bound to thread.
if (context3d_->isContextLost())
OnLostContextInternal();
}
void ContextProviderCommandBuffer::OnLostContextInternal() {
{
base::AutoLock lock(main_thread_lock_);
if (destroyed_)
return;
destroyed_ = true;
}
OnLostContext();
}
bool ContextProviderCommandBuffer::DestroyedOnMainThread() {
base::AutoLock lock(main_thread_lock_);
return destroyed_;
}
void ContextProviderCommandBuffer::OnMemoryAllocationChanged(
bool nonzero_allocation) {
if (gr_context_)
gr_context_->SetMemoryLimit(nonzero_allocation);
}
} // namespace content
|
