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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "GLES2/gl2.h" | 5 #include <GLES2/gl2.h> |
6 #include <GLES2/gl2ext.h> | |
7 | |
8 #include <vector> | |
9 | |
6 #include "ppapi/c/pp_errors.h" | 10 #include "ppapi/c/pp_errors.h" |
7 #include "ppapi/c/ppb_opengles2.h" | 11 #include "ppapi/c/ppb_opengles2.h" |
8 #include "ppapi/cpp/completion_callback.h" | 12 #include "ppapi/cpp/completion_callback.h" |
9 #include "ppapi/cpp/graphics_3d.h" | 13 #include "ppapi/cpp/graphics_3d.h" |
10 #include "ppapi/cpp/graphics_3d_client.h" | 14 #include "ppapi/cpp/graphics_3d_client.h" |
11 #include "ppapi/cpp/instance.h" | 15 #include "ppapi/cpp/instance.h" |
12 #include "ppapi/cpp/media_stream_video_track.h" | 16 #include "ppapi/cpp/media_stream_video_track.h" |
13 #include "ppapi/cpp/module.h" | 17 #include "ppapi/cpp/module.h" |
14 #include "ppapi/cpp/rect.h" | 18 #include "ppapi/cpp/rect.h" |
15 #include "ppapi/cpp/var.h" | 19 #include "ppapi/cpp/var.h" |
(...skipping 30 matching lines...) Expand all Loading... | |
46 virtual ~MediaStreamVideoDemoInstance(); | 50 virtual ~MediaStreamVideoDemoInstance(); |
47 | 51 |
48 // pp::Instance implementation (see PPP_Instance). | 52 // pp::Instance implementation (see PPP_Instance). |
49 virtual void DidChangeView(const pp::Rect& position, | 53 virtual void DidChangeView(const pp::Rect& position, |
50 const pp::Rect& clip_ignored); | 54 const pp::Rect& clip_ignored); |
51 virtual void HandleMessage(const pp::Var& message_data); | 55 virtual void HandleMessage(const pp::Var& message_data); |
52 | 56 |
53 // pp::Graphics3DClient implementation. | 57 // pp::Graphics3DClient implementation. |
54 virtual void Graphics3DContextLost() { | 58 virtual void Graphics3DContextLost() { |
55 InitGL(); | 59 InitGL(); |
56 CreateYUVTextures(); | 60 CreateTextures(); |
57 Render(); | 61 Render(); |
58 } | 62 } |
59 | 63 |
60 private: | 64 private: |
65 void DrawYUV(); | |
66 void DrawRGB(); | |
61 void Render(); | 67 void Render(); |
62 | 68 |
63 // GL-related functions. | 69 // GL-related functions. |
64 void InitGL(); | 70 void InitGL(); |
65 GLuint CreateTexture(int32_t width, int32_t height, int unit); | 71 GLuint CreateTexture(int32_t width, int32_t height, int unit, bool rgba); |
66 void CreateGLObjects(); | 72 void CreateGLObjects(); |
67 void CreateShader(GLuint program, GLenum type, const char* source, int size); | 73 void CreateShader(GLuint program, GLenum type, const char* source, int size); |
68 void PaintFinished(int32_t result); | 74 void PaintFinished(int32_t result); |
69 void CreateYUVTextures(); | 75 void CreateTextures(); |
76 void ConfigureTrack(); | |
70 | 77 |
71 // Callback that is invoked when new frames are recevied. | 78 |
79 // MediaStreamVideoTrack callbacks. | |
80 void OnConfigure(int32_t result); | |
72 void OnGetFrame(int32_t result, pp::VideoFrame frame); | 81 void OnGetFrame(int32_t result, pp::VideoFrame frame); |
73 | 82 |
74 pp::Size position_size_; | 83 pp::Size position_size_; |
75 bool is_painting_; | 84 bool is_painting_; |
76 bool needs_paint_; | 85 bool needs_paint_; |
86 bool is_bgra_; | |
87 GLuint program_yuv_; | |
88 GLuint program_rgb_; | |
89 GLuint buffer_; | |
77 GLuint texture_y_; | 90 GLuint texture_y_; |
78 GLuint texture_u_; | 91 GLuint texture_u_; |
79 GLuint texture_v_; | 92 GLuint texture_v_; |
93 GLuint texture_rgb_; | |
80 pp::MediaStreamVideoTrack video_track_; | 94 pp::MediaStreamVideoTrack video_track_; |
81 pp::CompletionCallbackFactory<MediaStreamVideoDemoInstance> callback_factory_; | 95 pp::CompletionCallbackFactory<MediaStreamVideoDemoInstance> callback_factory_; |
96 std::vector<int32_t> attrib_list_; | |
97 | |
98 // MediaStreamVideoTrack attributes: | |
99 bool need_config_; | |
100 PP_VideoFrame_Format attrib_format_; | |
101 int32_t attrib_width_; | |
102 int32_t attrib_height_; | |
82 | 103 |
83 // Unowned pointers. | 104 // Unowned pointers. |
84 const struct PPB_OpenGLES2* gles2_if_; | 105 const struct PPB_OpenGLES2* gles2_if_; |
Sam Clegg
2014/03/28 18:24:56
Why not just use -lgles2_ppapi and use the GLES2 A
Peng
2014/04/01 15:36:37
Done.
| |
85 | 106 |
86 // Owned data. | 107 // Owned data. |
87 pp::Graphics3D* context_; | 108 pp::Graphics3D* context_; |
88 | 109 |
89 pp::Size frame_size_; | 110 pp::Size frame_size_; |
90 }; | 111 }; |
91 | 112 |
92 MediaStreamVideoDemoInstance::MediaStreamVideoDemoInstance( | 113 MediaStreamVideoDemoInstance::MediaStreamVideoDemoInstance( |
93 PP_Instance instance, pp::Module* module) | 114 PP_Instance instance, pp::Module* module) |
94 : pp::Instance(instance), | 115 : pp::Instance(instance), |
95 pp::Graphics3DClient(this), | 116 pp::Graphics3DClient(this), |
96 is_painting_(false), | 117 is_painting_(false), |
97 needs_paint_(false), | 118 needs_paint_(false), |
119 is_bgra_(false), | |
98 texture_y_(0), | 120 texture_y_(0), |
99 texture_u_(0), | 121 texture_u_(0), |
100 texture_v_(0), | 122 texture_v_(0), |
123 texture_rgb_(0), | |
101 callback_factory_(this), | 124 callback_factory_(this), |
125 need_config_(false), | |
126 attrib_format_(PP_VIDEOFRAME_FORMAT_I420), | |
127 attrib_width_(0), | |
128 attrib_height_(0), | |
102 context_(NULL) { | 129 context_(NULL) { |
103 gles2_if_ = static_cast<const struct PPB_OpenGLES2*>( | 130 gles2_if_ = static_cast<const struct PPB_OpenGLES2*>( |
104 module->GetBrowserInterface(PPB_OPENGLES2_INTERFACE)); | 131 module->GetBrowserInterface(PPB_OPENGLES2_INTERFACE)); |
105 PP_DCHECK(gles2_if_); | 132 PP_DCHECK(gles2_if_); |
106 } | 133 } |
107 | 134 |
108 MediaStreamVideoDemoInstance::~MediaStreamVideoDemoInstance() { | 135 MediaStreamVideoDemoInstance::~MediaStreamVideoDemoInstance() { |
109 delete context_; | 136 delete context_; |
110 } | 137 } |
111 | 138 |
112 void MediaStreamVideoDemoInstance::DidChangeView( | 139 void MediaStreamVideoDemoInstance::DidChangeView( |
113 const pp::Rect& position, const pp::Rect& clip_ignored) { | 140 const pp::Rect& position, const pp::Rect& clip_ignored) { |
114 if (position.width() == 0 || position.height() == 0) | 141 if (position.width() == 0 || position.height() == 0) |
115 return; | 142 return; |
116 if (position.size() == position_size_) | 143 if (position.size() == position_size_) |
117 return; | 144 return; |
118 | 145 |
119 position_size_ = position.size(); | 146 position_size_ = position.size(); |
120 | 147 |
121 // Initialize graphics. | 148 // Initialize graphics. |
122 InitGL(); | 149 InitGL(); |
123 Render(); | 150 Render(); |
124 } | 151 } |
125 | 152 |
126 void MediaStreamVideoDemoInstance::HandleMessage(const pp::Var& var_message) { | 153 void MediaStreamVideoDemoInstance::HandleMessage(const pp::Var& var_message) { |
127 if (!var_message.is_dictionary()) | 154 if (!var_message.is_dictionary()) |
Sam Clegg
2014/03/28 18:24:56
Report this case as an error somehow (even just st
Peng
2014/04/01 15:36:37
Done.
| |
128 return; | 155 return; |
156 | |
129 pp::VarDictionary var_dictionary_message(var_message); | 157 pp::VarDictionary var_dictionary_message(var_message); |
130 pp::Var var_track = var_dictionary_message.Get("track"); | 158 std::string command = var_dictionary_message.Get("command").AsString(); |
131 if (!var_track.is_resource()) | |
132 return; | |
133 | 159 |
134 pp::Resource resource_track = var_track.AsResource(); | 160 if (command == "init") { |
135 | 161 pp::Var var_track = var_dictionary_message.Get("track"); |
136 video_track_ = pp::MediaStreamVideoTrack(resource_track); | 162 if (!var_track.is_resource()) |
137 | 163 return; |
138 video_track_.GetFrame(callback_factory_.NewCallbackWithOutput( | 164 pp::Resource resource_track = var_track.AsResource(); |
139 &MediaStreamVideoDemoInstance::OnGetFrame)); | 165 video_track_ = pp::MediaStreamVideoTrack(resource_track); |
166 ConfigureTrack(); | |
167 } else if (command == "format") { | |
168 std::string str_format = var_dictionary_message.Get("format").AsString(); | |
binji
2014/04/01 00:00:52
nit: extra space after =
Peng
2014/04/01 15:36:37
Done.
| |
169 if (str_format == "YV12") { | |
170 attrib_format_ = PP_VIDEOFRAME_FORMAT_YV12; | |
171 } else if (str_format == "I420") { | |
172 attrib_format_ = PP_VIDEOFRAME_FORMAT_I420; | |
173 } else if (str_format == "BGRA") { | |
174 attrib_format_ = PP_VIDEOFRAME_FORMAT_BGRA; | |
175 } else { | |
176 attrib_format_ = PP_VIDEOFRAME_FORMAT_UNKNOWN; | |
177 } | |
178 need_config_ = true; | |
179 } else if (command == "size") { | |
180 attrib_width_ = var_dictionary_message.Get("width").AsInt(); | |
181 attrib_height_ = var_dictionary_message.Get("height").AsInt(); | |
182 need_config_ = true; | |
183 } | |
Sam Clegg
2014/03/28 18:24:56
else { error report in some way }
Peng
2014/04/01 15:36:37
Done.
| |
140 } | 184 } |
141 | 185 |
142 void MediaStreamVideoDemoInstance::InitGL() { | 186 void MediaStreamVideoDemoInstance::InitGL() { |
143 PP_DCHECK(position_size_.width() && position_size_.height()); | 187 PP_DCHECK(position_size_.width() && position_size_.height()); |
144 is_painting_ = false; | 188 is_painting_ = false; |
145 | 189 |
146 delete context_; | 190 delete context_; |
147 int32_t attributes[] = { | 191 int32_t attributes[] = { |
148 PP_GRAPHICS3DATTRIB_ALPHA_SIZE, 0, | 192 PP_GRAPHICS3DATTRIB_ALPHA_SIZE, 0, |
149 PP_GRAPHICS3DATTRIB_BLUE_SIZE, 8, | 193 PP_GRAPHICS3DATTRIB_BLUE_SIZE, 8, |
(...skipping 15 matching lines...) Expand all Loading... | |
165 gles2_if_->Clear(context_->pp_resource(), GL_COLOR_BUFFER_BIT); | 209 gles2_if_->Clear(context_->pp_resource(), GL_COLOR_BUFFER_BIT); |
166 gles2_if_->Viewport(context_->pp_resource(), 0, 0, | 210 gles2_if_->Viewport(context_->pp_resource(), 0, 0, |
167 position_size_.width(), position_size_.height()); | 211 position_size_.width(), position_size_.height()); |
168 | 212 |
169 BindGraphics(*context_); | 213 BindGraphics(*context_); |
170 AssertNoGLError(); | 214 AssertNoGLError(); |
171 | 215 |
172 CreateGLObjects(); | 216 CreateGLObjects(); |
173 } | 217 } |
174 | 218 |
219 void MediaStreamVideoDemoInstance::DrawYUV() { | |
220 PP_Resource context = context_->pp_resource(); | |
221 static const float kColorMatrix[9] = { | |
222 1.1643828125f, 1.1643828125f, 1.1643828125f, | |
223 0.0f, -0.39176171875f, 2.017234375f, | |
224 1.59602734375f, -0.81296875f, 0.0f | |
225 }; | |
226 | |
227 gles2_if_->UseProgram(context, program_yuv_); | |
228 gles2_if_->Uniform1i(context, gles2_if_->GetUniformLocation( | |
229 context, program_yuv_, "y_texture"), 0); | |
230 gles2_if_->Uniform1i(context, gles2_if_->GetUniformLocation( | |
231 context, program_yuv_, "u_texture"), 1); | |
232 gles2_if_->Uniform1i(context, gles2_if_->GetUniformLocation( | |
233 context, program_yuv_, "v_texture"), 2); | |
234 gles2_if_->UniformMatrix3fv( | |
235 context, | |
236 gles2_if_->GetUniformLocation(context, program_yuv_, "color_matrix"), | |
237 1, GL_FALSE, kColorMatrix); | |
238 AssertNoGLError(); | |
239 | |
240 GLint pos_location = gles2_if_->GetAttribLocation( | |
241 context, program_yuv_, "a_position"); | |
242 GLint tc_location = gles2_if_->GetAttribLocation( | |
243 context, program_yuv_, "a_texCoord"); | |
244 AssertNoGLError(); | |
245 gles2_if_->EnableVertexAttribArray(context, pos_location); | |
246 gles2_if_->VertexAttribPointer(context, pos_location, 2, | |
247 GL_FLOAT, GL_FALSE, 0, 0); | |
248 gles2_if_->EnableVertexAttribArray(context, tc_location); | |
249 gles2_if_->VertexAttribPointer( | |
250 context, tc_location, 2, GL_FLOAT, GL_FALSE, 0, | |
251 static_cast<float*>(0) + 16); // Skip position coordinates. | |
252 AssertNoGLError(); | |
253 | |
254 gles2_if_->DrawArrays(context, GL_TRIANGLE_STRIP, 0, 4); | |
255 AssertNoGLError(); | |
256 } | |
257 | |
258 void MediaStreamVideoDemoInstance::DrawRGB() { | |
259 PP_Resource context = context_->pp_resource(); | |
260 gles2_if_->UseProgram(context, program_rgb_); | |
261 gles2_if_->Uniform1i(context, | |
262 gles2_if_->GetUniformLocation(context, program_rgb_, "rgb_texture"), 3); | |
263 AssertNoGLError(); | |
264 | |
265 GLint pos_location = gles2_if_->GetAttribLocation( | |
266 context, program_rgb_, "a_position"); | |
267 GLint tc_location = gles2_if_->GetAttribLocation( | |
268 context, program_rgb_, "a_texCoord"); | |
269 AssertNoGLError(); | |
270 gles2_if_->EnableVertexAttribArray(context, pos_location); | |
271 gles2_if_->VertexAttribPointer(context, pos_location, 2, | |
272 GL_FLOAT, GL_FALSE, 0, 0); | |
273 gles2_if_->EnableVertexAttribArray(context, tc_location); | |
274 gles2_if_->VertexAttribPointer( | |
275 context, tc_location, 2, GL_FLOAT, GL_FALSE, 0, | |
276 static_cast<float*>(0) + 16); // Skip position coordinates. | |
277 AssertNoGLError(); | |
278 | |
279 gles2_if_->DrawArrays(context, GL_TRIANGLE_STRIP, 4, 4); | |
280 } | |
281 | |
175 void MediaStreamVideoDemoInstance::Render() { | 282 void MediaStreamVideoDemoInstance::Render() { |
176 PP_DCHECK(!is_painting_); | 283 PP_DCHECK(!is_painting_); |
177 is_painting_ = true; | 284 is_painting_ = true; |
178 needs_paint_ = false; | 285 needs_paint_ = false; |
286 | |
179 if (texture_y_) { | 287 if (texture_y_) { |
180 gles2_if_->DrawArrays(context_->pp_resource(), GL_TRIANGLE_STRIP, 0, 4); | 288 DrawRGB(); |
289 DrawYUV(); | |
181 } else { | 290 } else { |
182 gles2_if_->Clear(context_->pp_resource(), GL_COLOR_BUFFER_BIT); | 291 gles2_if_->Clear(context_->pp_resource(), GL_COLOR_BUFFER_BIT); |
183 } | 292 } |
184 pp::CompletionCallback cb = callback_factory_.NewCallback( | 293 pp::CompletionCallback cb = callback_factory_.NewCallback( |
185 &MediaStreamVideoDemoInstance::PaintFinished); | 294 &MediaStreamVideoDemoInstance::PaintFinished); |
186 context_->SwapBuffers(cb); | 295 context_->SwapBuffers(cb); |
187 } | 296 } |
188 | 297 |
189 void MediaStreamVideoDemoInstance::PaintFinished(int32_t result) { | 298 void MediaStreamVideoDemoInstance::PaintFinished(int32_t result) { |
190 is_painting_ = false; | 299 is_painting_ = false; |
191 if (needs_paint_) | 300 if (needs_paint_) |
192 Render(); | 301 Render(); |
193 } | 302 } |
194 | 303 |
195 GLuint MediaStreamVideoDemoInstance::CreateTexture( | 304 GLuint MediaStreamVideoDemoInstance::CreateTexture( |
196 int32_t width, int32_t height, int unit) { | 305 int32_t width, int32_t height, int unit, bool rgba) { |
197 GLuint texture_id; | 306 GLuint texture_id; |
198 gles2_if_->GenTextures(context_->pp_resource(), 1, &texture_id); | 307 gles2_if_->GenTextures(context_->pp_resource(), 1, &texture_id); |
199 AssertNoGLError(); | 308 AssertNoGLError(); |
309 | |
200 // Assign parameters. | 310 // Assign parameters. |
201 gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE0 + unit); | 311 gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE0 + unit); |
202 gles2_if_->BindTexture(context_->pp_resource(), GL_TEXTURE_2D, texture_id); | 312 gles2_if_->BindTexture(context_->pp_resource(), GL_TEXTURE_2D, texture_id); |
203 gles2_if_->TexParameteri( | 313 gles2_if_->TexParameteri( |
204 context_->pp_resource(), GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, | 314 context_->pp_resource(), GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, |
205 GL_NEAREST); | 315 GL_NEAREST); |
206 gles2_if_->TexParameteri( | 316 gles2_if_->TexParameteri( |
207 context_->pp_resource(), GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, | 317 context_->pp_resource(), GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, |
208 GL_NEAREST); | 318 GL_NEAREST); |
209 gles2_if_->TexParameterf( | 319 gles2_if_->TexParameterf( |
210 context_->pp_resource(), GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, | 320 context_->pp_resource(), GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, |
211 GL_CLAMP_TO_EDGE); | 321 GL_CLAMP_TO_EDGE); |
212 gles2_if_->TexParameterf( | 322 gles2_if_->TexParameterf( |
213 context_->pp_resource(), GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, | 323 context_->pp_resource(), GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, |
214 GL_CLAMP_TO_EDGE); | 324 GL_CLAMP_TO_EDGE); |
215 | |
216 // Allocate texture. | 325 // Allocate texture. |
217 gles2_if_->TexImage2D( | 326 gles2_if_->TexImage2D( |
218 context_->pp_resource(), GL_TEXTURE_2D, 0, GL_LUMINANCE, width, height, 0, | 327 context_->pp_resource(), GL_TEXTURE_2D, 0, |
219 GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL); | 328 rgba ? GL_BGRA_EXT : GL_LUMINANCE, |
329 width, height, 0, | |
330 rgba ? GL_BGRA_EXT : GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL); | |
220 AssertNoGLError(); | 331 AssertNoGLError(); |
221 return texture_id; | 332 return texture_id; |
222 } | 333 } |
223 | 334 |
224 void MediaStreamVideoDemoInstance::CreateGLObjects() { | 335 void MediaStreamVideoDemoInstance::CreateGLObjects() { |
225 // Code and constants for shader. | 336 // Code and constants for shader. |
226 static const char kVertexShader[] = | 337 static const char kVertexShader[] = |
227 "varying vec2 v_texCoord; \n" | 338 "varying vec2 v_texCoord; \n" |
228 "attribute vec4 a_position; \n" | 339 "attribute vec4 a_position; \n" |
229 "attribute vec2 a_texCoord; \n" | 340 "attribute vec2 a_texCoord; \n" |
230 "void main() \n" | 341 "void main() \n" |
231 "{ \n" | 342 "{ \n" |
232 " v_texCoord = a_texCoord; \n" | 343 " v_texCoord = a_texCoord; \n" |
233 " gl_Position = a_position; \n" | 344 " gl_Position = a_position; \n" |
234 "}"; | 345 "}"; |
235 | 346 |
236 static const char kFragmentShader[] = | 347 static const char kFragmentShaderYUV[] = |
237 "precision mediump float; \n" | 348 "precision mediump float; \n" |
238 "varying vec2 v_texCoord; \n" | 349 "varying vec2 v_texCoord; \n" |
239 "uniform sampler2D y_texture; \n" | 350 "uniform sampler2D y_texture; \n" |
240 "uniform sampler2D u_texture; \n" | 351 "uniform sampler2D u_texture; \n" |
241 "uniform sampler2D v_texture; \n" | 352 "uniform sampler2D v_texture; \n" |
242 "uniform mat3 color_matrix; \n" | 353 "uniform mat3 color_matrix; \n" |
243 "void main() \n" | 354 "void main() \n" |
244 "{ \n" | 355 "{ \n" |
245 " vec3 yuv; \n" | 356 " vec3 yuv; \n" |
246 " yuv.x = texture2D(y_texture, v_texCoord).r; \n" | 357 " yuv.x = texture2D(y_texture, v_texCoord).r; \n" |
247 " yuv.y = texture2D(u_texture, v_texCoord).r; \n" | 358 " yuv.y = texture2D(u_texture, v_texCoord).r; \n" |
248 " yuv.z = texture2D(v_texture, v_texCoord).r; \n" | 359 " yuv.z = texture2D(v_texture, v_texCoord).r; \n" |
249 " vec3 rgb = color_matrix * (yuv - vec3(0.0625, 0.5, 0.5));\n" | 360 " vec3 rgb = color_matrix * (yuv - vec3(0.0625, 0.5, 0.5));\n" |
250 " gl_FragColor = vec4(rgb, 1.0); \n" | 361 " gl_FragColor = vec4(rgb, 1.0); \n" |
251 "}"; | 362 "}"; |
252 | 363 |
253 static const float kColorMatrix[9] = { | 364 static const char kFragmentShaderRGB[] = |
254 1.1643828125f, 1.1643828125f, 1.1643828125f, | 365 "precision mediump float; \n" |
255 0.0f, -0.39176171875f, 2.017234375f, | 366 "varying vec2 v_texCoord; \n" |
256 1.59602734375f, -0.81296875f, 0.0f | 367 "uniform sampler2D rgb_texture; \n" |
257 }; | 368 "void main() \n" |
369 "{ \n" | |
370 " gl_FragColor = texture2D(rgb_texture, v_texCoord); \n" | |
371 "}"; | |
258 | 372 |
259 PP_Resource context = context_->pp_resource(); | 373 PP_Resource context = context_->pp_resource(); |
260 | 374 |
261 // Create shader program. | 375 // Create shader programs. |
262 GLuint program = gles2_if_->CreateProgram(context); | 376 program_yuv_ = gles2_if_->CreateProgram(context); |
263 CreateShader(program, GL_VERTEX_SHADER, kVertexShader, sizeof(kVertexShader)); | 377 CreateShader(program_yuv_, GL_VERTEX_SHADER, |
264 CreateShader( | 378 kVertexShader, sizeof(kVertexShader)); |
Sam Clegg
2014/03/28 18:24:56
Maybe don't pass size here and assume NULL termina
Peng
2014/04/01 15:36:37
Done.
| |
265 program, GL_FRAGMENT_SHADER, kFragmentShader, sizeof(kFragmentShader)); | 379 CreateShader(program_yuv_, GL_FRAGMENT_SHADER, |
266 gles2_if_->LinkProgram(context, program); | 380 kFragmentShaderYUV, sizeof(kFragmentShaderYUV)); |
267 gles2_if_->UseProgram(context, program); | 381 gles2_if_->LinkProgram(context, program_yuv_); |
268 gles2_if_->DeleteProgram(context, program); | 382 AssertNoGLError(); |
269 gles2_if_->Uniform1i( | 383 |
270 context, gles2_if_->GetUniformLocation(context, program, "y_texture"), 0); | 384 program_rgb_ = gles2_if_->CreateProgram(context); |
271 gles2_if_->Uniform1i( | 385 CreateShader(program_rgb_, GL_VERTEX_SHADER, |
272 context, gles2_if_->GetUniformLocation(context, program, "u_texture"), 1); | 386 kVertexShader, sizeof(kVertexShader)); |
273 gles2_if_->Uniform1i( | 387 CreateShader(program_rgb_, GL_FRAGMENT_SHADER, |
274 context, gles2_if_->GetUniformLocation(context, program, "v_texture"), 2); | 388 kFragmentShaderRGB, sizeof(kFragmentShaderRGB)); |
275 gles2_if_->UniformMatrix3fv( | 389 gles2_if_->LinkProgram(context, program_rgb_); |
276 context, | |
277 gles2_if_->GetUniformLocation(context, program, "color_matrix"), | |
278 1, GL_FALSE, kColorMatrix); | |
279 AssertNoGLError(); | 390 AssertNoGLError(); |
280 | 391 |
281 // Assign vertex positions and texture coordinates to buffers for use in | 392 // Assign vertex positions and texture coordinates to buffers for use in |
282 // shader program. | 393 // shader program. |
283 static const float kVertices[] = { | 394 static const float kVertices[] = { |
284 -1, 1, -1, -1, 1, 1, 1, -1, // Position coordinates. | 395 -1, 1, -1, -1, 0, 1, 0, -1, // Position coordinates. |
396 0, 1, 0, -1, 1, 1, 1, -1, // Position coordinates. | |
397 0, 0, 0, 1, 1, 0, 1, 1, // Texture coordinates. | |
285 0, 0, 0, 1, 1, 0, 1, 1, // Texture coordinates. | 398 0, 0, 0, 1, 1, 0, 1, 1, // Texture coordinates. |
286 }; | 399 }; |
287 | 400 |
288 GLuint buffer; | 401 gles2_if_->GenBuffers(context, 1, &buffer_); |
289 gles2_if_->GenBuffers(context, 1, &buffer); | 402 gles2_if_->BindBuffer(context, GL_ARRAY_BUFFER, buffer_); |
290 gles2_if_->BindBuffer(context, GL_ARRAY_BUFFER, buffer); | |
291 gles2_if_->BufferData(context, GL_ARRAY_BUFFER, | 403 gles2_if_->BufferData(context, GL_ARRAY_BUFFER, |
292 sizeof(kVertices), kVertices, GL_STATIC_DRAW); | 404 sizeof(kVertices), kVertices, GL_STATIC_DRAW); |
293 AssertNoGLError(); | 405 AssertNoGLError(); |
294 GLint pos_location = gles2_if_->GetAttribLocation( | |
295 context, program, "a_position"); | |
296 GLint tc_location = gles2_if_->GetAttribLocation( | |
297 context, program, "a_texCoord"); | |
298 AssertNoGLError(); | |
299 gles2_if_->EnableVertexAttribArray(context, pos_location); | |
300 gles2_if_->VertexAttribPointer(context, pos_location, 2, | |
301 GL_FLOAT, GL_FALSE, 0, 0); | |
302 gles2_if_->EnableVertexAttribArray(context, tc_location); | |
303 gles2_if_->VertexAttribPointer( | |
304 context, tc_location, 2, GL_FLOAT, GL_FALSE, 0, | |
305 static_cast<float*>(0) + 8); // Skip position coordinates. | |
306 AssertNoGLError(); | |
307 } | 406 } |
308 | 407 |
309 void MediaStreamVideoDemoInstance::CreateShader( | 408 void MediaStreamVideoDemoInstance::CreateShader( |
310 GLuint program, GLenum type, const char* source, int size) { | 409 GLuint program, GLenum type, const char* source, int size) { |
311 PP_Resource context = context_->pp_resource(); | 410 PP_Resource context = context_->pp_resource(); |
312 GLuint shader = gles2_if_->CreateShader(context, type); | 411 GLuint shader = gles2_if_->CreateShader(context, type); |
313 gles2_if_->ShaderSource(context, shader, 1, &source, &size); | 412 gles2_if_->ShaderSource(context, shader, 1, &source, &size); |
314 gles2_if_->CompileShader(context, shader); | 413 gles2_if_->CompileShader(context, shader); |
315 gles2_if_->AttachShader(context, program, shader); | 414 gles2_if_->AttachShader(context, program, shader); |
316 gles2_if_->DeleteShader(context, shader); | 415 gles2_if_->DeleteShader(context, shader); |
317 } | 416 } |
318 | 417 |
319 void MediaStreamVideoDemoInstance::CreateYUVTextures() { | 418 void MediaStreamVideoDemoInstance::CreateTextures() { |
320 int32_t width = frame_size_.width(); | 419 int32_t width = frame_size_.width(); |
321 int32_t height = frame_size_.height(); | 420 int32_t height = frame_size_.height(); |
322 if (width == 0 || height == 0) | 421 if (width == 0 || height == 0) |
323 return; | 422 return; |
324 if (texture_y_) | 423 if (texture_y_) |
325 gles2_if_->DeleteTextures(context_->pp_resource(), 1, &texture_y_); | 424 gles2_if_->DeleteTextures(context_->pp_resource(), 1, &texture_y_); |
326 if (texture_u_) | 425 if (texture_u_) |
327 gles2_if_->DeleteTextures(context_->pp_resource(), 1, &texture_u_); | 426 gles2_if_->DeleteTextures(context_->pp_resource(), 1, &texture_u_); |
328 if (texture_v_) | 427 if (texture_v_) |
329 gles2_if_->DeleteTextures(context_->pp_resource(), 1, &texture_v_); | 428 gles2_if_->DeleteTextures(context_->pp_resource(), 1, &texture_v_); |
330 texture_y_ = CreateTexture(width, height, 0); | 429 if (texture_rgb_) |
430 gles2_if_->DeleteTextures(context_->pp_resource(), 1, &texture_rgb_); | |
431 texture_y_ = CreateTexture(width, height, 0, false); | |
331 | 432 |
332 width /= 2; | 433 texture_u_ = CreateTexture(width / 2, height / 2, 1, false); |
333 height /= 2; | 434 texture_v_ = CreateTexture(width / 2, height / 2, 2, false); |
334 texture_u_ = CreateTexture(width, height, 1); | 435 texture_rgb_ = CreateTexture(width, height, 3, true); |
335 texture_v_ = CreateTexture(width, height, 2); | 436 } |
437 | |
438 void MediaStreamVideoDemoInstance::ConfigureTrack() { | |
439 const int32_t attrib_list[] = { | |
440 PP_MEDIASTREAMVIDEOTRACK_ATTRIB_FORMAT, attrib_format_, | |
441 PP_MEDIASTREAMVIDEOTRACK_ATTRIB_WIDTH, attrib_width_, | |
442 PP_MEDIASTREAMVIDEOTRACK_ATTRIB_HEIGHT, attrib_height_, | |
443 PP_MEDIASTREAMVIDEOTRACK_ATTRIB_NONE | |
444 }; | |
445 video_track_.Configure(attrib_list, callback_factory_.NewCallback( | |
446 &MediaStreamVideoDemoInstance::OnConfigure)); | |
447 } | |
448 | |
449 void MediaStreamVideoDemoInstance::OnConfigure(int32_t result) { | |
450 video_track_.GetFrame(callback_factory_.NewCallbackWithOutput( | |
451 &MediaStreamVideoDemoInstance::OnGetFrame)); | |
336 } | 452 } |
337 | 453 |
338 void MediaStreamVideoDemoInstance::OnGetFrame( | 454 void MediaStreamVideoDemoInstance::OnGetFrame( |
339 int32_t result, pp::VideoFrame frame) { | 455 int32_t result, pp::VideoFrame frame) { |
340 if (result != PP_OK) | 456 if (result != PP_OK) |
341 return; | 457 return; |
342 const char* data = static_cast<const char*>(frame.GetDataBuffer()); | 458 const char* data = static_cast<const char*>(frame.GetDataBuffer()); |
343 pp::Size size; | 459 pp::Size size; |
344 PP_DCHECK(frame.GetSize(&size)); | 460 frame.GetSize(&size); |
461 | |
345 if (size != frame_size_) { | 462 if (size != frame_size_) { |
346 frame_size_ = size; | 463 frame_size_ = size; |
347 CreateYUVTextures(); | 464 CreateTextures(); |
348 } | 465 } |
349 | 466 |
467 is_bgra_ = (frame.GetFormat() == PP_VIDEOFRAME_FORMAT_BGRA); | |
468 | |
350 int32_t width = frame_size_.width(); | 469 int32_t width = frame_size_.width(); |
351 int32_t height = frame_size_.height(); | 470 int32_t height = frame_size_.height(); |
352 gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE0); | 471 if (!is_bgra_) { |
353 gles2_if_->TexSubImage2D( | 472 gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE0); |
354 context_->pp_resource(), GL_TEXTURE_2D, 0, 0, 0, width, height, | 473 gles2_if_->TexSubImage2D( |
355 GL_LUMINANCE, GL_UNSIGNED_BYTE, data); | 474 context_->pp_resource(), GL_TEXTURE_2D, 0, 0, 0, width, height, |
475 GL_LUMINANCE, GL_UNSIGNED_BYTE, data); | |
356 | 476 |
357 data += width * height; | 477 data += width * height; |
358 width /= 2; | 478 width /= 2; |
359 height /= 2; | 479 height /= 2; |
360 | 480 |
361 gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE1); | 481 gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE1); |
362 gles2_if_->TexSubImage2D( | 482 gles2_if_->TexSubImage2D( |
363 context_->pp_resource(), GL_TEXTURE_2D, 0, 0, 0, width, height, | 483 context_->pp_resource(), GL_TEXTURE_2D, 0, 0, 0, width, height, |
364 GL_LUMINANCE, GL_UNSIGNED_BYTE, data); | 484 GL_LUMINANCE, GL_UNSIGNED_BYTE, data); |
365 | 485 |
366 data += width * height; | 486 data += width * height; |
367 gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE2); | 487 gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE2); |
368 gles2_if_->TexSubImage2D( | 488 gles2_if_->TexSubImage2D( |
369 context_->pp_resource(), GL_TEXTURE_2D, 0, 0, 0, width, height, | 489 context_->pp_resource(), GL_TEXTURE_2D, 0, 0, 0, width, height, |
370 GL_LUMINANCE, GL_UNSIGNED_BYTE, data); | 490 GL_LUMINANCE, GL_UNSIGNED_BYTE, data); |
491 } else { | |
492 gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE3); | |
493 gles2_if_->TexSubImage2D( | |
494 context_->pp_resource(), GL_TEXTURE_2D, 0, 0, 0, width, height, | |
495 GL_BGRA_EXT, GL_UNSIGNED_BYTE, data); | |
496 } | |
371 | 497 |
372 if (is_painting_) | 498 if (is_painting_) |
373 needs_paint_ = true; | 499 needs_paint_ = true; |
374 else | 500 else |
375 Render(); | 501 Render(); |
376 | 502 |
377 video_track_.RecycleFrame(frame); | 503 video_track_.RecycleFrame(frame); |
378 video_track_.GetFrame(callback_factory_.NewCallbackWithOutput( | 504 if (need_config_) { |
379 &MediaStreamVideoDemoInstance::OnGetFrame)); | 505 ConfigureTrack(); |
506 need_config_ = false; | |
507 } else { | |
508 video_track_.GetFrame(callback_factory_.NewCallbackWithOutput( | |
509 &MediaStreamVideoDemoInstance::OnGetFrame)); | |
510 } | |
380 } | 511 } |
381 | 512 |
382 pp::Instance* MediaStreamVideoModule::CreateInstance(PP_Instance instance) { | 513 pp::Instance* MediaStreamVideoModule::CreateInstance(PP_Instance instance) { |
383 return new MediaStreamVideoDemoInstance(instance, this); | 514 return new MediaStreamVideoDemoInstance(instance, this); |
384 } | 515 } |
385 | 516 |
386 } // anonymous namespace | 517 } // anonymous namespace |
387 | 518 |
388 namespace pp { | 519 namespace pp { |
389 // Factory function for your specialization of the Module object. | 520 // Factory function for your specialization of the Module object. |
390 Module* CreateModule() { | 521 Module* CreateModule() { |
391 return new MediaStreamVideoModule(); | 522 return new MediaStreamVideoModule(); |
392 } | 523 } |
393 } // namespace pp | 524 } // namespace pp |
OLD | NEW |