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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/common/sync_token.h" | |
watk
2017/06/29 18:39:07
potentially unneeded now
sandersd (OOO until July 31)
2017/06/29 23:13:00
Done.
| |
12 #include "gpu/command_buffer/service/gles2_cmd_decoder.h" | |
13 #include "gpu/command_buffer/service/mailbox_manager.h" | |
14 #include "gpu/command_buffer/service/texture_manager.h" | |
15 #include "gpu/ipc/service/gpu_command_buffer_stub.h" | |
watk
2017/06/29 18:39:07
potentially unneeded
sandersd (OOO until July 31)
2017/06/29 23:13:00
Done.
| |
16 | |
17 namespace media { | |
18 | |
19 class GLES2DecoderHelperImpl : public GLES2DecoderHelper { | |
20 public: | |
21 explicit GLES2DecoderHelperImpl(gpu::gles2::GLES2Decoder* decoder) | |
22 : decoder_(decoder) {} | |
23 | |
24 bool MakeContextCurrent() override { | |
25 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); | |
26 return decoder_->MakeCurrent(); | |
27 } | |
28 | |
29 scoped_refptr<gpu::gles2::TextureRef> CreateTexture(GLenum target, | |
30 GLenum internal_format, | |
31 GLsizei width, | |
32 GLsizei height, | |
33 GLenum format, | |
34 GLenum type) override { | |
35 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); | |
36 gpu::gles2::ContextGroup* group = decoder_->GetContextGroup(); | |
37 if (!group) | |
38 return nullptr; | |
39 gpu::gles2::TextureManager* texture_manager = group->texture_manager(); | |
40 if (!texture_manager) | |
41 return nullptr; | |
42 | |
43 // We can't use texture_manager->CreateTexture(), since it requires a unique | |
44 // |client_id|. Instead we create the texture directly, and create our own | |
45 // TextureRef for it. | |
46 GLuint texture_id; | |
47 glGenTextures(1, &texture_id); | |
48 glBindTexture(target, texture_id); | |
49 | |
50 scoped_refptr<gpu::gles2::TextureRef> texture_ref = | |
51 gpu::gles2::TextureRef::Create(texture_manager, 0, texture_id); | |
52 texture_manager->SetTarget(texture_ref.get(), target); | |
53 texture_manager->SetLevelInfo(texture_ref.get(), // ref | |
54 target, // target | |
55 0, // level | |
56 internal_format, // internal_format | |
57 width, // width | |
58 height, // height | |
59 1, // depth | |
60 0, // border | |
61 format, // format | |
62 type, // type | |
63 gfx::Rect()); // cleared_rect | |
64 | |
65 texture_manager->SetParameteri(__func__, decoder_->GetErrorState(), | |
66 texture_ref.get(), GL_TEXTURE_MAG_FILTER, | |
67 GL_LINEAR); | |
68 texture_manager->SetParameteri(__func__, decoder_->GetErrorState(), | |
69 texture_ref.get(), GL_TEXTURE_MIN_FILTER, | |
70 GL_LINEAR); | |
71 | |
72 texture_manager->SetParameteri(__func__, decoder_->GetErrorState(), | |
73 texture_ref.get(), GL_TEXTURE_WRAP_S, | |
74 GL_CLAMP_TO_EDGE); | |
75 texture_manager->SetParameteri(__func__, decoder_->GetErrorState(), | |
76 texture_ref.get(), GL_TEXTURE_WRAP_T, | |
77 GL_CLAMP_TO_EDGE); | |
78 | |
79 texture_manager->SetParameteri(__func__, decoder_->GetErrorState(), | |
80 texture_ref.get(), GL_TEXTURE_BASE_LEVEL, 0); | |
81 texture_manager->SetParameteri(__func__, decoder_->GetErrorState(), | |
82 texture_ref.get(), GL_TEXTURE_MAX_LEVEL, 0); | |
83 | |
84 // TODO(sandersd): Do we always want to allocate for GL_TEXTURE_2D? | |
85 if (target == GL_TEXTURE_2D) { | |
86 glTexImage2D(target, // target | |
87 0, // level | |
88 internal_format, // internal_format | |
89 width, // width | |
90 height, // height | |
91 0, // border | |
92 format, // format | |
93 type, // type | |
94 nullptr); // data | |
95 } | |
96 | |
97 decoder_->RestoreActiveTextureUnitBinding(target); | |
98 return texture_ref; | |
99 } | |
100 | |
101 base::Optional<gpu::Mailbox> CreateMailbox( | |
102 gpu::gles2::TextureRef* texture_ref) override { | |
103 DCHECK_CALLED_ON_VALID_THREAD(thread_checker_); | |
104 gpu::gles2::ContextGroup* group = decoder_->GetContextGroup(); | |
105 if (!group) | |
106 return base::nullopt; | |
107 gpu::gles2::MailboxManager* mailbox_manager = group->mailbox_manager(); | |
108 if (!mailbox_manager) | |
109 return base::nullopt; | |
110 gpu::Mailbox mailbox = gpu::Mailbox::Generate(); | |
111 mailbox_manager->ProduceTexture(mailbox, texture_ref->texture()); | |
112 return mailbox; | |
113 } | |
114 | |
115 private: | |
116 gpu::gles2::GLES2Decoder* decoder_; | |
117 THREAD_CHECKER(thread_checker_); | |
118 | |
119 DISALLOW_COPY_AND_ASSIGN(GLES2DecoderHelperImpl); | |
120 }; | |
121 | |
122 // static | |
123 std::unique_ptr<GLES2DecoderHelper> GLES2DecoderHelper::Create( | |
124 gpu::gles2::GLES2Decoder* decoder) { | |
125 if (!decoder) | |
126 return nullptr; | |
127 return base::MakeUnique<GLES2DecoderHelperImpl>(decoder); | |
128 } | |
129 | |
130 } // namespace media | |
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