OLD | NEW |
---|---|
(Empty) | |
1 // Copyright 2017 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 "media/gpu/gles2_decoder_helper.h" | |
6 | |
7 #include "base/macros.h" | |
8 #include "base/memory/ptr_util.h" | |
9 #include "base/threading/thread_checker.h" | |
10 #include "gpu/command_buffer/common/mailbox.h" | |
11 #include "gpu/command_buffer/service/gles2_cmd_decoder.h" | |
12 #include "gpu/command_buffer/service/mailbox_manager.h" | |
13 #include "gpu/command_buffer/service/texture_manager.h" | |
14 | |
15 namespace media { | |
16 | |
17 class GLES2DecoderHelperImpl : public GLES2DecoderHelper { | |
18 public: | |
19 explicit GLES2DecoderHelperImpl(gpu::gles2::GLES2Decoder* decoder) | |
20 : decoder_(decoder) {} | |
21 | |
22 bool MakeContextCurrent() override { | |
23 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); | |
24 return decoder_->MakeCurrent(); | |
25 } | |
26 | |
27 scoped_refptr<gpu::gles2::TextureRef> CreateTexture(GLenum target, | |
28 GLenum internal_format, | |
29 GLsizei width, | |
30 GLsizei height, | |
31 GLenum format, | |
32 GLenum type) override { | |
33 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); | |
sunnyps
2017/06/30 01:01:07
nit: dcheck if context is current
sandersd (OOO until July 31)
2017/07/06 22:09:06
Done.
| |
34 gpu::gles2::ContextGroup* group = decoder_->GetContextGroup(); | |
35 if (!group) | |
piman
2017/07/06 22:30:50
nit: This will always be non-null
| |
36 return nullptr; | |
37 gpu::gles2::TextureManager* texture_manager = group->texture_manager(); | |
38 if (!texture_manager) | |
piman
2017/07/06 22:30:50
So, today this would never be null in production.
sandersd (OOO until July 31)
2017/07/06 22:47:11
Done.
In general, the purpose of VDAs is not just
| |
39 return nullptr; | |
40 | |
41 // We can't use texture_manager->CreateTexture(), since it requires a unique | |
42 // |client_id|. Instead we create the texture directly, and create our own | |
43 // TextureRef for it. | |
44 GLuint texture_id; | |
45 glGenTextures(1, &texture_id); | |
46 glBindTexture(target, texture_id); | |
47 | |
48 scoped_refptr<gpu::gles2::TextureRef> texture_ref = | |
49 gpu::gles2::TextureRef::Create(texture_manager, 0, texture_id); | |
50 texture_manager->SetTarget(texture_ref.get(), target); | |
51 texture_manager->SetLevelInfo(texture_ref.get(), // ref | |
52 target, // target | |
53 0, // level | |
54 internal_format, // internal_format | |
55 width, // width | |
56 height, // height | |
57 1, // depth | |
58 0, // border | |
59 format, // format | |
60 type, // type | |
61 gfx::Rect()); // cleared_rect | |
62 | |
63 texture_manager->SetParameteri(__func__, decoder_->GetErrorState(), | |
64 texture_ref.get(), GL_TEXTURE_MAG_FILTER, | |
65 GL_LINEAR); | |
66 texture_manager->SetParameteri(__func__, decoder_->GetErrorState(), | |
67 texture_ref.get(), GL_TEXTURE_MIN_FILTER, | |
68 GL_LINEAR); | |
69 | |
70 texture_manager->SetParameteri(__func__, decoder_->GetErrorState(), | |
71 texture_ref.get(), GL_TEXTURE_WRAP_S, | |
72 GL_CLAMP_TO_EDGE); | |
73 texture_manager->SetParameteri(__func__, decoder_->GetErrorState(), | |
74 texture_ref.get(), GL_TEXTURE_WRAP_T, | |
75 GL_CLAMP_TO_EDGE); | |
76 | |
77 texture_manager->SetParameteri(__func__, decoder_->GetErrorState(), | |
78 texture_ref.get(), GL_TEXTURE_BASE_LEVEL, 0); | |
79 texture_manager->SetParameteri(__func__, decoder_->GetErrorState(), | |
80 texture_ref.get(), GL_TEXTURE_MAX_LEVEL, 0); | |
81 | |
82 // TODO(sandersd): Do we always want to allocate for GL_TEXTURE_2D? | |
83 if (target == GL_TEXTURE_2D) { | |
84 glTexImage2D(target, // target | |
85 0, // level | |
86 internal_format, // internal_format | |
87 width, // width | |
88 height, // height | |
89 0, // border | |
90 format, // format | |
91 type, // type | |
92 nullptr); // data | |
93 } | |
94 | |
95 decoder_->RestoreActiveTextureUnitBinding(target); | |
96 return texture_ref; | |
97 } | |
98 | |
99 base::Optional<gpu::Mailbox> CreateMailbox( | |
100 gpu::gles2::TextureRef* texture_ref) override { | |
101 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); | |
102 gpu::gles2::ContextGroup* group = decoder_->GetContextGroup(); | |
103 if (!group) | |
piman
2017/07/06 22:30:50
nit: ditto
sandersd (OOO until July 31)
2017/07/06 22:47:11
Done.
| |
104 return base::nullopt; | |
105 gpu::gles2::MailboxManager* mailbox_manager = group->mailbox_manager(); | |
106 if (!mailbox_manager) | |
piman
2017/07/06 22:30:50
nit: also never null
Which means, you don't need
sandersd (OOO until July 31)
2017/07/06 22:47:11
Done.
| |
107 return base::nullopt; | |
108 gpu::Mailbox mailbox = gpu::Mailbox::Generate(); | |
109 mailbox_manager->ProduceTexture(mailbox, texture_ref->texture()); | |
110 return mailbox; | |
111 } | |
112 | |
113 private: | |
114 gpu::gles2::GLES2Decoder* decoder_; | |
115 THREAD_CHECKER(thread_checker_); | |
116 | |
117 DISALLOW_COPY_AND_ASSIGN(GLES2DecoderHelperImpl); | |
118 }; | |
119 | |
120 // static | |
121 std::unique_ptr<GLES2DecoderHelper> GLES2DecoderHelper::Create( | |
122 gpu::gles2::GLES2Decoder* decoder) { | |
123 if (!decoder) | |
124 return nullptr; | |
125 return base::MakeUnique<GLES2DecoderHelperImpl>(decoder); | |
126 } | |
127 | |
128 } // namespace media | |
OLD | NEW |