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| 1 // Copyright (c) 2013 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 "content/common/gpu/stream_texture_android.h" | |
| 6 | |
| 7 #include <string.h> | |
| 8 | |
| 9 #include "base/bind.h" | |
| 10 #include "base/strings/stringize_macros.h" | |
| 11 #include "content/common/gpu/gpu_channel.h" | |
| 12 #include "gpu/command_buffer/service/context_group.h" | |
| 13 #include "gpu/command_buffer/service/context_state.h" | |
| 14 #include "gpu/command_buffer/service/gles2_cmd_decoder.h" | |
| 15 #include "gpu/command_buffer/service/texture_manager.h" | |
| 16 #include "gpu/ipc/common/android/surface_texture_peer.h" | |
| 17 #include "gpu/ipc/common/gpu_messages.h" | |
| 18 #include "ui/gfx/geometry/size.h" | |
| 19 #include "ui/gl/gl_context.h" | |
| 20 #include "ui/gl/gl_helper.h" | |
| 21 #include "ui/gl/scoped_binders.h" | |
| 22 #include "ui/gl/scoped_make_current.h" | |
| 23 | |
| 24 namespace content { | |
| 25 | |
| 26 using gpu::gles2::ContextGroup; | |
| 27 using gpu::gles2::GLES2Decoder; | |
| 28 using gpu::gles2::TextureManager; | |
| 29 using gpu::gles2::TextureRef; | |
| 30 | |
| 31 // static | |
| 32 bool StreamTexture::Create(GpuCommandBufferStub* owner_stub, | |
| 33 uint32_t client_texture_id, | |
| 34 int stream_id) { | |
| 35 GLES2Decoder* decoder = owner_stub->decoder(); | |
| 36 TextureManager* texture_manager = | |
| 37 decoder->GetContextGroup()->texture_manager(); | |
| 38 TextureRef* texture = texture_manager->GetTexture(client_texture_id); | |
| 39 | |
| 40 if (texture && (!texture->texture()->target() || | |
| 41 texture->texture()->target() == GL_TEXTURE_EXTERNAL_OES)) { | |
| 42 | |
| 43 // TODO: Ideally a valid image id was returned to the client so that | |
| 44 // it could then call glBindTexImage2D() for doing the following. | |
| 45 scoped_refptr<gpu::gles2::GLStreamTextureImage> gl_image( | |
| 46 new StreamTexture(owner_stub, stream_id, texture->service_id())); | |
| 47 gfx::Size size = gl_image->GetSize(); | |
| 48 texture_manager->SetTarget(texture, GL_TEXTURE_EXTERNAL_OES); | |
| 49 texture_manager->SetLevelInfo(texture, GL_TEXTURE_EXTERNAL_OES, 0, GL_RGBA, | |
| 50 size.width(), size.height(), 1, 0, GL_RGBA, | |
| 51 GL_UNSIGNED_BYTE, gfx::Rect(size)); | |
| 52 texture_manager->SetLevelStreamTextureImage( | |
| 53 texture, GL_TEXTURE_EXTERNAL_OES, 0, gl_image.get(), | |
| 54 gpu::gles2::Texture::UNBOUND); | |
| 55 return true; | |
| 56 } | |
| 57 | |
| 58 return false; | |
| 59 } | |
| 60 | |
| 61 StreamTexture::StreamTexture(GpuCommandBufferStub* owner_stub, | |
| 62 int32_t route_id, | |
| 63 uint32_t texture_id) | |
| 64 : surface_texture_(gfx::SurfaceTexture::Create(texture_id)), | |
| 65 size_(0, 0), | |
| 66 has_pending_frame_(false), | |
| 67 owner_stub_(owner_stub), | |
| 68 route_id_(route_id), | |
| 69 has_listener_(false), | |
| 70 texture_id_(texture_id), | |
| 71 framebuffer_(0), | |
| 72 vertex_shader_(0), | |
| 73 fragment_shader_(0), | |
| 74 program_(0), | |
| 75 vertex_buffer_(0), | |
| 76 u_xform_location_(-1), | |
| 77 weak_factory_(this) { | |
| 78 owner_stub->AddDestructionObserver(this); | |
| 79 memset(current_matrix_, 0, sizeof(current_matrix_)); | |
| 80 owner_stub->channel()->AddRoute(route_id, owner_stub->stream_id(), this); | |
| 81 surface_texture_->SetFrameAvailableCallback(base::Bind( | |
| 82 &StreamTexture::OnFrameAvailable, weak_factory_.GetWeakPtr())); | |
| 83 } | |
| 84 | |
| 85 StreamTexture::~StreamTexture() { | |
| 86 if (owner_stub_) { | |
| 87 owner_stub_->RemoveDestructionObserver(this); | |
| 88 owner_stub_->channel()->RemoveRoute(route_id_); | |
| 89 } | |
| 90 } | |
| 91 | |
| 92 // gpu::gles2::GLStreamTextureMatrix implementation | |
| 93 void StreamTexture::GetTextureMatrix(float xform[16]) { | |
| 94 UpdateTexImage(); | |
| 95 surface_texture_->GetTransformMatrix(xform); | |
| 96 } | |
| 97 | |
| 98 void StreamTexture::OnWillDestroyStub() { | |
| 99 owner_stub_->RemoveDestructionObserver(this); | |
| 100 owner_stub_->channel()->RemoveRoute(route_id_); | |
| 101 | |
| 102 if (framebuffer_) { | |
| 103 scoped_ptr<ui::ScopedMakeCurrent> scoped_make_current(MakeStubCurrent()); | |
| 104 | |
| 105 glDeleteProgram(program_); | |
| 106 glDeleteShader(vertex_shader_); | |
| 107 glDeleteShader(fragment_shader_); | |
| 108 glDeleteBuffersARB(1, &vertex_buffer_); | |
| 109 glDeleteFramebuffersEXT(1, &framebuffer_); | |
| 110 program_ = 0; | |
| 111 vertex_shader_ = 0; | |
| 112 fragment_shader_ = 0; | |
| 113 vertex_buffer_ = 0; | |
| 114 framebuffer_ = 0; | |
| 115 u_xform_location_ = -1; | |
| 116 } | |
| 117 | |
| 118 owner_stub_ = NULL; | |
| 119 | |
| 120 // If the owner goes away, there is no need to keep the SurfaceTexture around. | |
| 121 // The GL texture will keep working regardless with the currently bound frame. | |
| 122 surface_texture_ = NULL; | |
| 123 } | |
| 124 | |
| 125 void StreamTexture::Destroy(bool have_context) { | |
| 126 NOTREACHED(); | |
| 127 } | |
| 128 | |
| 129 scoped_ptr<ui::ScopedMakeCurrent> StreamTexture::MakeStubCurrent() { | |
| 130 scoped_ptr<ui::ScopedMakeCurrent> scoped_make_current; | |
| 131 bool needs_make_current = | |
| 132 !owner_stub_->decoder()->GetGLContext()->IsCurrent(NULL); | |
| 133 if (needs_make_current) { | |
| 134 scoped_make_current.reset(new ui::ScopedMakeCurrent( | |
| 135 owner_stub_->decoder()->GetGLContext(), owner_stub_->surface())); | |
| 136 } | |
| 137 return scoped_make_current; | |
| 138 } | |
| 139 | |
| 140 void StreamTexture::UpdateTexImage() { | |
| 141 DCHECK(surface_texture_.get()); | |
| 142 DCHECK(owner_stub_); | |
| 143 | |
| 144 if (!has_pending_frame_) return; | |
| 145 | |
| 146 scoped_ptr<ui::ScopedMakeCurrent> scoped_make_current(MakeStubCurrent()); | |
| 147 | |
| 148 surface_texture_->UpdateTexImage(); | |
| 149 | |
| 150 has_pending_frame_ = false; | |
| 151 | |
| 152 if (scoped_make_current.get()) { | |
| 153 // UpdateTexImage() implies glBindTexture(). | |
| 154 // The cmd decoder takes care of restoring the binding for this GLImage as | |
| 155 // far as the current context is concerned, but if we temporarily change | |
| 156 // it, we have to keep the state intact in *that* context also. | |
| 157 const gpu::gles2::ContextState* state = | |
| 158 owner_stub_->decoder()->GetContextState(); | |
| 159 const gpu::gles2::TextureUnit& active_unit = | |
| 160 state->texture_units[state->active_texture_unit]; | |
| 161 glBindTexture(GL_TEXTURE_EXTERNAL_OES, | |
| 162 active_unit.bound_texture_external_oes.get() | |
| 163 ? active_unit.bound_texture_external_oes->service_id() | |
| 164 : 0); | |
| 165 } | |
| 166 } | |
| 167 | |
| 168 bool StreamTexture::CopyTexImage(unsigned target) { | |
| 169 if (target != GL_TEXTURE_EXTERNAL_OES) | |
| 170 return false; | |
| 171 | |
| 172 if (!owner_stub_ || !surface_texture_.get()) | |
| 173 return true; | |
| 174 | |
| 175 GLint texture_id; | |
| 176 glGetIntegerv(GL_TEXTURE_BINDING_EXTERNAL_OES, &texture_id); | |
| 177 | |
| 178 // The following code only works if we're being asked to copy into | |
| 179 // |texture_id_|. Copying into a different texture is not supported. | |
| 180 // On some devices GL_TEXTURE_BINDING_EXTERNAL_OES is not supported as | |
| 181 // glGetIntegerv() parameter. In this case the value of |texture_id| will be | |
| 182 // zero and we assume that it is properly bound to |texture_id_|. | |
| 183 if (texture_id > 0 && static_cast<unsigned>(texture_id) != texture_id_) | |
| 184 return false; | |
| 185 | |
| 186 UpdateTexImage(); | |
| 187 | |
| 188 TextureManager* texture_manager = | |
| 189 owner_stub_->decoder()->GetContextGroup()->texture_manager(); | |
| 190 gpu::gles2::Texture* texture = | |
| 191 texture_manager->GetTextureForServiceId(texture_id_); | |
| 192 if (texture) { | |
| 193 // By setting image state to UNBOUND instead of COPIED we ensure that | |
| 194 // CopyTexImage() is called each time the surface texture is used for | |
| 195 // drawing. | |
| 196 texture->SetLevelStreamTextureImage(GL_TEXTURE_EXTERNAL_OES, 0, this, | |
| 197 gpu::gles2::Texture::UNBOUND); | |
| 198 } | |
| 199 | |
| 200 return true; | |
| 201 } | |
| 202 | |
| 203 void StreamTexture::OnFrameAvailable() { | |
| 204 has_pending_frame_ = true; | |
| 205 if (has_listener_ && owner_stub_) { | |
| 206 owner_stub_->channel()->Send( | |
| 207 new GpuStreamTextureMsg_FrameAvailable(route_id_)); | |
| 208 } | |
| 209 } | |
| 210 | |
| 211 gfx::Size StreamTexture::GetSize() { | |
| 212 return size_; | |
| 213 } | |
| 214 | |
| 215 unsigned StreamTexture::GetInternalFormat() { | |
| 216 return GL_RGBA; | |
| 217 } | |
| 218 | |
| 219 bool StreamTexture::OnMessageReceived(const IPC::Message& message) { | |
| 220 bool handled = true; | |
| 221 IPC_BEGIN_MESSAGE_MAP(StreamTexture, message) | |
| 222 IPC_MESSAGE_HANDLER(GpuStreamTextureMsg_StartListening, OnStartListening) | |
| 223 IPC_MESSAGE_HANDLER(GpuStreamTextureMsg_EstablishPeer, OnEstablishPeer) | |
| 224 IPC_MESSAGE_HANDLER(GpuStreamTextureMsg_SetSize, OnSetSize) | |
| 225 IPC_MESSAGE_UNHANDLED(handled = false) | |
| 226 IPC_END_MESSAGE_MAP() | |
| 227 | |
| 228 DCHECK(handled); | |
| 229 return handled; | |
| 230 } | |
| 231 | |
| 232 void StreamTexture::OnStartListening() { | |
| 233 DCHECK(!has_listener_); | |
| 234 has_listener_ = true; | |
| 235 } | |
| 236 | |
| 237 void StreamTexture::OnEstablishPeer(int32_t primary_id, int32_t secondary_id) { | |
| 238 if (!owner_stub_) | |
| 239 return; | |
| 240 | |
| 241 base::ProcessHandle process = owner_stub_->channel()->GetClientPID(); | |
| 242 | |
| 243 gpu::SurfaceTexturePeer::GetInstance()->EstablishSurfaceTexturePeer( | |
| 244 process, surface_texture_, primary_id, secondary_id); | |
| 245 } | |
| 246 | |
| 247 bool StreamTexture::BindTexImage(unsigned target) { | |
| 248 NOTREACHED(); | |
| 249 return false; | |
| 250 } | |
| 251 | |
| 252 void StreamTexture::ReleaseTexImage(unsigned target) { | |
| 253 NOTREACHED(); | |
| 254 } | |
| 255 | |
| 256 bool StreamTexture::CopyTexSubImage(unsigned target, | |
| 257 const gfx::Point& offset, | |
| 258 const gfx::Rect& rect) { | |
| 259 return false; | |
| 260 } | |
| 261 | |
| 262 bool StreamTexture::ScheduleOverlayPlane(gfx::AcceleratedWidget widget, | |
| 263 int z_order, | |
| 264 gfx::OverlayTransform transform, | |
| 265 const gfx::Rect& bounds_rect, | |
| 266 const gfx::RectF& crop_rect) { | |
| 267 NOTREACHED(); | |
| 268 return false; | |
| 269 } | |
| 270 | |
| 271 void StreamTexture::OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd, | |
| 272 uint64_t process_tracing_id, | |
| 273 const std::string& dump_name) { | |
| 274 // TODO(ericrk): Add OnMemoryDump for GLImages. crbug.com/514914 | |
| 275 } | |
| 276 | |
| 277 } // namespace content | |
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Chromium Code Reviews
Issue 1845563005:
Refactor content/common/gpu into gpu/ipc/service (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master