Implement Pepper PPB_VideoDecoder interface.

ppapi/examples/video_decode/video_decode_dev.cc

 // Copyright (c) 2012 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 <string.h>
 
 #include <iostream>
 #include <list>
 #include <map>
 #include <set>
@@ skipping 17 matching lines @@
 #include "ppapi/utility/completion_callback_factory.h"
 
 // Use assert as a poor-man's CHECK, even in non-debug mode.
 // Since <assert.h> redefines assert on every inclusion (it doesn't use
 // include-guards), make sure this is the last file #include'd in this file.
 #undef NDEBUG
 #include <assert.h>
 
 // Assert |context_| isn't holding any GL Errors.  Done as a macro instead of a
 // function to preserve line number information in the failure message.
-#define assertNoGLError() \
-  assert(!gles2_if_->GetError(context_->pp_resource()));
+#define assertNoGLError() assert(!gles2_if_->GetError(context_->pp_resource()));

[Ami GONE FROM CHROMIUM, 2014/05/28 20:50:56]

I assume almost all the edits in this file are clang-format.
But what brought this file to clang-format's attention?
(there must be some not-whitespace-only change here but I'm missing it)

[bbudge, 2014/05/29 00:03:34]

I'm not sure what happened here. I'll remove this file from the CL.

 
 namespace {
 
 struct PictureBufferInfo {
   PP_PictureBuffer_Dev buffer;
   GLenum texture_target;
 };
 
 struct Shader {
-  Shader() : program(0),
-             texcoord_scale_location(0) {}
+  Shader() : program(0), texcoord_scale_location(0) {}
 
   GLuint program;
   GLint texcoord_scale_location;
 };
 
 class VideoDecodeDemoInstance : public pp::Instance,

[Ami GONE FROM CHROMIUM, 2014/05/28 20:50:56]

Is there a bug tracking moving flapper away from the _Dev interface so that it
can be deleted (and with it this example)?

[bbudge, 2014/05/29 00:03:34]

https://code.google.com/p/chromium/issues/detail?id=378547

                                 public pp::Graphics3DClient,
                                 public pp::VideoDecoderClient_Dev {
  public:
   VideoDecodeDemoInstance(PP_Instance instance, pp::Module* module);
   virtual ~VideoDecodeDemoInstance();
 
   // pp::Instance implementation (see PPP_Instance).
   virtual void DidChangeView(const pp::Rect& position,
                              const pp::Rect& clip_ignored);
 
   // pp::Graphics3DClient implementation.
   virtual void Graphics3DContextLost() {
     // TODO(vrk/fischman): Properly reset after a lost graphics context.  In
     // particular need to delete context_ and re-create textures.
     // Probably have to recreate the decoder from scratch, because old textures
     // can still be outstanding in the decoder!
     assert(false && "Unexpectedly lost graphics context");
   }
 
   // pp::VideoDecoderClient_Dev implementation.
-  virtual void ProvidePictureBuffers(
-      PP_Resource decoder,
-      uint32_t req_num_of_bufs,
-      const PP_Size& dimensions,
-      uint32_t texture_target);
+  virtual void ProvidePictureBuffers(PP_Resource decoder,
+                                     uint32_t req_num_of_bufs,
+                                     const PP_Size& dimensions,
+                                     uint32_t texture_target);
   virtual void DismissPictureBuffer(PP_Resource decoder,
                                     int32_t picture_buffer_id);
   virtual void PictureReady(PP_Resource decoder, const PP_Picture_Dev& picture);
   virtual void NotifyError(PP_Resource decoder, PP_VideoDecodeError_Dev error);
 
  private:
-  enum { kNumConcurrentDecodes = 7,
-         kNumDecoders = 2 };  // Baked into viewport rendering.
+  enum {
+    kNumConcurrentDecodes = 7,
+    kNumDecoders = 2
+  };  // Baked into viewport rendering.
 
   // A single decoder's client interface.
   class DecoderClient {
    public:
     DecoderClient(VideoDecodeDemoInstance* gles2,
                   pp::VideoDecoder_Dev* decoder);
     ~DecoderClient();
 
     void DecodeNextNALUs();
 
     // Per-decoder implementation of part of pp::VideoDecoderClient_Dev.
-    void ProvidePictureBuffers(
-        uint32_t req_num_of_bufs,
-        PP_Size dimensions,
-        uint32_t texture_target);
+    void ProvidePictureBuffers(uint32_t req_num_of_bufs,
+                               PP_Size dimensions,
+                               uint32_t texture_target);
     void DismissPictureBuffer(int32_t picture_buffer_id);
 
     const PictureBufferInfo& GetPictureBufferInfoById(int id);
     pp::VideoDecoder_Dev* decoder() { return decoder_; }
 
    private:
     void DecodeNextNALU();
     static void GetNextNALUBoundary(size_t start_pos, size_t* end_pos);
     void DecoderBitstreamDone(int32_t result, int bitstream_buffer_id);
     void DecoderFlushDone(int32_t result);
@@ skipping 15 matching lines @@
 
   // Initialize Video Decoders.
   void InitializeDecoders();
 
   // GL-related functions.
   void InitGL();
   GLuint CreateTexture(int32_t width, int32_t height, GLenum texture_target);
   void CreateGLObjects();
   void Create2DProgramOnce();
   void CreateRectangleARBProgramOnce();
-  Shader CreateProgram(const char* vertex_shader,
-                       const char* fragment_shader);
+  Shader CreateProgram(const char* vertex_shader, const char* fragment_shader);
   void CreateShader(GLuint program, GLenum type, const char* source, int size);
   void DeleteTexture(GLuint id);
-  void PaintFinished(int32_t result, PP_Resource decoder,
+  void PaintFinished(int32_t result,
+                     PP_Resource decoder,
                      int picture_buffer_id);
 
   // Log an error to the developer console and stderr (though the latter may be
   // closed due to sandboxing or blackholed for other reasons) by creating a
   // temporary of this type and streaming to it.  Example usage:
   // LogError(this).s() << "Hello world: " << 42;
   class LogError {
    public:
     LogError(VideoDecodeDemoInstance* demo) : demo_(demo) {}
     ~LogError() {
       const std::string& msg = stream_.str();
-      demo_->console_if_->Log(demo_->pp_instance(), PP_LOGLEVEL_ERROR,
-                              pp::Var(msg).pp_var());
+      demo_->console_if_->Log(
+          demo_->pp_instance(), PP_LOGLEVEL_ERROR, pp::Var(msg).pp_var());
       std::cerr << msg << std::endl;
     }
     // Impl note: it would have been nicer to have LogError derive from
     // std::ostringstream so that it can be streamed to directly, but lookup
     // rules turn streamed string literals to hex pointers on output.
     std::ostringstream& s() { return stream_; }
+
    private:
     VideoDecodeDemoInstance* demo_;  // Unowned.
     std::ostringstream stream_;
   };
 
   pp::Size plugin_size_;
   bool is_painting_;
   // When decode outpaces render, we queue up decoded pictures for later
   // painting.  Elements are <decoder,picture>.
   std::list<std::pair<PP_Resource, PP_Picture_Dev> > pictures_pending_paint_;
@@ skipping 13 matching lines @@
   typedef std::map<int, DecoderClient*> Decoders;
   Decoders video_decoders_;
 
   // Shader program to draw GL_TEXTURE_2D target.
   Shader shader_2d_;
   // Shader program to draw GL_TEXTURE_RECTANGLE_ARB target.
   Shader shader_rectangle_arb_;
 };
 
 VideoDecodeDemoInstance::DecoderClient::DecoderClient(
-      VideoDecodeDemoInstance* gles2, pp::VideoDecoder_Dev* decoder)
-    : gles2_(gles2), decoder_(decoder), callback_factory_(this),
+    VideoDecodeDemoInstance* gles2,
+    pp::VideoDecoder_Dev* decoder)
+    : gles2_(gles2),
+      decoder_(decoder),
+      callback_factory_(this),
       next_picture_buffer_id_(0),
-      next_bitstream_buffer_id_(0), encoded_data_next_pos_to_decode_(0) {
+      next_bitstream_buffer_id_(0),
+      encoded_data_next_pos_to_decode_(0) {
 }
 
 VideoDecodeDemoInstance::DecoderClient::~DecoderClient() {
   delete decoder_;
   decoder_ = NULL;
 
   for (BitstreamBufferMap::iterator it = bitstream_buffers_by_id_.begin();
-       it != bitstream_buffers_by_id_.end(); ++it) {
+       it != bitstream_buffers_by_id_.end();
+       ++it) {
     delete it->second;
   }
   bitstream_buffers_by_id_.clear();
 
   for (PictureBufferMap::iterator it = picture_buffers_by_id_.begin();
-       it != picture_buffers_by_id_.end(); ++it) {
+       it != picture_buffers_by_id_.end();
+       ++it) {
     gles2_->DeleteTexture(it->second.buffer.texture_id);
   }
   picture_buffers_by_id_.clear();
 }
 
 VideoDecodeDemoInstance::VideoDecodeDemoInstance(PP_Instance instance,
                                                  pp::Module* module)
-    : pp::Instance(instance), pp::Graphics3DClient(this),
+    : pp::Instance(instance),
+      pp::Graphics3DClient(this),
       pp::VideoDecoderClient_Dev(this),
       is_painting_(false),
       num_frames_rendered_(0),
       first_frame_delivered_ticks_(-1),
       swap_ticks_(0),
       callback_factory_(this),
       context_(NULL) {
   assert((console_if_ = static_cast<const PPB_Console*>(
-      module->GetBrowserInterface(PPB_CONSOLE_INTERFACE))));
+              module->GetBrowserInterface(PPB_CONSOLE_INTERFACE))));
   assert((core_if_ = static_cast<const PPB_Core*>(
-      module->GetBrowserInterface(PPB_CORE_INTERFACE))));
+              module->GetBrowserInterface(PPB_CORE_INTERFACE))));
   assert((gles2_if_ = static_cast<const PPB_OpenGLES2*>(
-      module->GetBrowserInterface(PPB_OPENGLES2_INTERFACE))));
+              module->GetBrowserInterface(PPB_OPENGLES2_INTERFACE))));
 }
 
 VideoDecodeDemoInstance::~VideoDecodeDemoInstance() {
   if (shader_2d_.program)
     gles2_if_->DeleteProgram(context_->pp_resource(), shader_2d_.program);
   if (shader_rectangle_arb_.program) {
-    gles2_if_->DeleteProgram(
-        context_->pp_resource(), shader_rectangle_arb_.program);
+    gles2_if_->DeleteProgram(context_->pp_resource(),
+                             shader_rectangle_arb_.program);
   }
 
   for (Decoders::iterator it = video_decoders_.begin();
-       it != video_decoders_.end(); ++it) {
+       it != video_decoders_.end();
+       ++it) {
     delete it->second;
   }
   video_decoders_.clear();
   delete context_;
 }
 
-void VideoDecodeDemoInstance::DidChangeView(
-    const pp::Rect& position, const pp::Rect& clip_ignored) {
+void VideoDecodeDemoInstance::DidChangeView(const pp::Rect& position,
+                                            const pp::Rect& clip_ignored) {
   if (position.width() == 0 || position.height() == 0)
     return;
   if (plugin_size_.width()) {
     assert(position.size() == plugin_size_);
     return;
   }
   plugin_size_ = position.size();
 
   // Initialize graphics.
   InitGL();
   InitializeDecoders();
 }
 
 void VideoDecodeDemoInstance::InitializeDecoders() {
   assert(video_decoders_.empty());
   for (int i = 0; i < kNumDecoders; ++i) {
     DecoderClient* client = new DecoderClient(
-        this, new pp::VideoDecoder_Dev(
+        this,
+        new pp::VideoDecoder_Dev(
             this, *context_, PP_VIDEODECODER_H264PROFILE_MAIN));
     assert(!client->decoder()->is_null());
-    assert(video_decoders_.insert(std::make_pair(
-        client->decoder()->pp_resource(), client)).second);
+    assert(
+        video_decoders_.insert(std::make_pair(client->decoder()->pp_resource(),
+                                              client)).second);
     client->DecodeNextNALUs();
   }
 }
 
 void VideoDecodeDemoInstance::DecoderClient::DecoderBitstreamDone(
-    int32_t result, int bitstream_buffer_id) {
+    int32_t result,
+    int bitstream_buffer_id) {
   assert(bitstream_ids_at_decoder_.erase(bitstream_buffer_id) == 1);
   BitstreamBufferMap::iterator it =
       bitstream_buffers_by_id_.find(bitstream_buffer_id);
   assert(it != bitstream_buffers_by_id_.end());
   delete it->second;
   bitstream_buffers_by_id_.erase(it);
   DecodeNextNALUs();
 }
 
 void VideoDecodeDemoInstance::DecoderClient::DecoderFlushDone(int32_t result) {
   assert(result == PP_OK);
   // Check that each bitstream buffer ID we handed to the decoder got handed
   // back to us.
   assert(bitstream_ids_at_decoder_.empty());
   delete decoder_;
   decoder_ = NULL;
 }
 
 static bool LookingAtNAL(const unsigned char* encoded, size_t pos) {
-  return pos + 3 < kDataLen &&
-      encoded[pos] == 0 && encoded[pos + 1] == 0 &&
-      encoded[pos + 2] == 0 && encoded[pos + 3] == 1;
+  return pos + 3 < kDataLen && encoded[pos] == 0 && encoded[pos + 1] == 0 &&
+         encoded[pos + 2] == 0 && encoded[pos + 3] == 1;
 }
 
 void VideoDecodeDemoInstance::DecoderClient::GetNextNALUBoundary(
-    size_t start_pos, size_t* end_pos) {
+    size_t start_pos,
+    size_t* end_pos) {
   assert(LookingAtNAL(kData, start_pos));
   *end_pos = start_pos;
   *end_pos += 4;
-  while (*end_pos + 3 < kDataLen &&
-         !LookingAtNAL(kData, *end_pos)) {
+  while (*end_pos + 3 < kDataLen && !LookingAtNAL(kData, *end_pos)) {
     ++*end_pos;
   }
   if (*end_pos + 3 >= kDataLen) {
     *end_pos = kDataLen;
     return;
   }
 }
 
 void VideoDecodeDemoInstance::DecoderClient::DecodeNextNALUs() {
   while (encoded_data_next_pos_to_decode_ <= kDataLen &&
@@ skipping 15 matching lines @@
   GetNextNALUBoundary(start_pos, &end_pos);
   pp::Buffer_Dev* buffer = new pp::Buffer_Dev(gles2_, end_pos - start_pos);
   PP_VideoBitstreamBuffer_Dev bitstream_buffer;
   int id = ++next_bitstream_buffer_id_;
   bitstream_buffer.id = id;
   bitstream_buffer.size = end_pos - start_pos;
   bitstream_buffer.data = buffer->pp_resource();
   memcpy(buffer->data(), kData + start_pos, end_pos - start_pos);
   assert(bitstream_buffers_by_id_.insert(std::make_pair(id, buffer)).second);
 
-  pp::CompletionCallback cb =
-      callback_factory_.NewCallback(
-          &VideoDecodeDemoInstance::DecoderClient::DecoderBitstreamDone, id);
+  pp::CompletionCallback cb = callback_factory_.NewCallback(
+      &VideoDecodeDemoInstance::DecoderClient::DecoderBitstreamDone, id);
   assert(bitstream_ids_at_decoder_.insert(id).second);
   encoded_data_next_pos_to_decode_ = end_pos;
   decoder_->Decode(bitstream_buffer, cb);
 }
 
 void VideoDecodeDemoInstance::ProvidePictureBuffers(PP_Resource decoder,
                                                     uint32_t req_num_of_bufs,
                                                     const PP_Size& dimensions,
                                                     uint32_t texture_target) {
   DecoderClient* client = video_decoders_[decoder];
@@ skipping 14 matching lines @@
         dimensions.width, dimensions.height, info.texture_target);
     int id = ++next_picture_buffer_id_;
     info.buffer.id = id;
     buffers.push_back(info.buffer);
     assert(picture_buffers_by_id_.insert(std::make_pair(id, info)).second);
   }
   decoder_->AssignPictureBuffers(buffers);
 }
 
 const PictureBufferInfo&
-VideoDecodeDemoInstance::DecoderClient::GetPictureBufferInfoById(
-    int id) {
+VideoDecodeDemoInstance::DecoderClient::GetPictureBufferInfoById(int id) {
   PictureBufferMap::iterator it = picture_buffers_by_id_.find(id);
   assert(it != picture_buffers_by_id_.end());
   return it->second;
 }
 
 void VideoDecodeDemoInstance::DismissPictureBuffer(PP_Resource decoder,
-                                             int32_t picture_buffer_id) {
+                                                   int32_t picture_buffer_id) {
   DecoderClient* client = video_decoders_[decoder];
   assert(client);
   client->DismissPictureBuffer(picture_buffer_id);
 }
 
 void VideoDecodeDemoInstance::DecoderClient::DismissPictureBuffer(
     int32_t picture_buffer_id) {
-  gles2_->DeleteTexture(GetPictureBufferInfoById(
-      picture_buffer_id).buffer.texture_id);
+  gles2_->DeleteTexture(
+      GetPictureBufferInfoById(picture_buffer_id).buffer.texture_id);
   picture_buffers_by_id_.erase(picture_buffer_id);
 }
 
 void VideoDecodeDemoInstance::PictureReady(PP_Resource decoder,
-                                     const PP_Picture_Dev& picture) {
+                                           const PP_Picture_Dev& picture) {
   if (first_frame_delivered_ticks_ == -1)
     assert((first_frame_delivered_ticks_ = core_if_->GetTimeTicks()) != -1);
   if (is_painting_) {
     pictures_pending_paint_.push_back(std::make_pair(decoder, picture));
     return;
   }
   DecoderClient* client = video_decoders_[decoder];
   assert(client);
   const PictureBufferInfo& info =
       client->GetPictureBufferInfoById(picture.picture_buffer_id);
   assert(!is_painting_);
   is_painting_ = true;
   int x = 0;
   int y = 0;
   if (client != video_decoders_.begin()->second) {
     x = plugin_size_.width() / kNumDecoders;
     y = plugin_size_.height() / kNumDecoders;
   }
 
   if (info.texture_target == GL_TEXTURE_2D) {
     Create2DProgramOnce();
     gles2_if_->UseProgram(context_->pp_resource(), shader_2d_.program);
     gles2_if_->Uniform2f(
         context_->pp_resource(), shader_2d_.texcoord_scale_location, 1.0, 1.0);
   } else {
     assert(info.texture_target == GL_TEXTURE_RECTANGLE_ARB);
     CreateRectangleARBProgramOnce();
-    gles2_if_->UseProgram(
-        context_->pp_resource(), shader_rectangle_arb_.program);
+    gles2_if_->UseProgram(context_->pp_resource(),
+                          shader_rectangle_arb_.program);
     gles2_if_->Uniform2f(context_->pp_resource(),
                          shader_rectangle_arb_.texcoord_scale_location,
                          info.buffer.size.width,
                          info.buffer.size.height);
   }
 
-  gles2_if_->Viewport(context_->pp_resource(), x, y,
+  gles2_if_->Viewport(context_->pp_resource(),
+                      x,
+                      y,
                       plugin_size_.width() / kNumDecoders,
                       plugin_size_.height() / kNumDecoders);
   gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE0);
   gles2_if_->BindTexture(
       context_->pp_resource(), info.texture_target, info.buffer.texture_id);
   gles2_if_->DrawArrays(context_->pp_resource(), GL_TRIANGLE_STRIP, 0, 4);
 
   gles2_if_->UseProgram(context_->pp_resource(), 0);
 
-  pp::CompletionCallback cb =
-      callback_factory_.NewCallback(
-          &VideoDecodeDemoInstance::PaintFinished, decoder, info.buffer.id);
+  pp::CompletionCallback cb = callback_factory_.NewCallback(
+      &VideoDecodeDemoInstance::PaintFinished, decoder, info.buffer.id);
   last_swap_request_ticks_ = core_if_->GetTimeTicks();
   assert(context_->SwapBuffers(cb) == PP_OK_COMPLETIONPENDING);
 }
 
 void VideoDecodeDemoInstance::NotifyError(PP_Resource decoder,
                                           PP_VideoDecodeError_Dev error) {
   LogError(this).s() << "Received error: " << error;
   assert(false && "Unexpected error; see stderr for details");
 }
 
 // This object is the global object representing this plugin library as long
 // as it is loaded.
 class VideoDecodeDemoModule : public pp::Module {
  public:
   VideoDecodeDemoModule() : pp::Module() {}
   virtual ~VideoDecodeDemoModule() {}
 
   virtual pp::Instance* CreateInstance(PP_Instance instance) {
     return new VideoDecodeDemoInstance(instance, this);
   }
 };
 
 void VideoDecodeDemoInstance::InitGL() {
   assert(plugin_size_.width() && plugin_size_.height());
   is_painting_ = false;
 
   assert(!context_);
   int32_t context_attributes[] = {
-    PP_GRAPHICS3DATTRIB_ALPHA_SIZE, 8,
-    PP_GRAPHICS3DATTRIB_BLUE_SIZE, 8,
-    PP_GRAPHICS3DATTRIB_GREEN_SIZE, 8,
-    PP_GRAPHICS3DATTRIB_RED_SIZE, 8,
-    PP_GRAPHICS3DATTRIB_DEPTH_SIZE, 0,
-    PP_GRAPHICS3DATTRIB_STENCIL_SIZE, 0,
-    PP_GRAPHICS3DATTRIB_SAMPLES, 0,
-    PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS, 0,
-    PP_GRAPHICS3DATTRIB_WIDTH, plugin_size_.width(),
-    PP_GRAPHICS3DATTRIB_HEIGHT, plugin_size_.height(),
-    PP_GRAPHICS3DATTRIB_NONE,
+      PP_GRAPHICS3DATTRIB_ALPHA_SIZE,     8,
+      PP_GRAPHICS3DATTRIB_BLUE_SIZE,      8,
+      PP_GRAPHICS3DATTRIB_GREEN_SIZE,     8,
+      PP_GRAPHICS3DATTRIB_RED_SIZE,       8,
+      PP_GRAPHICS3DATTRIB_DEPTH_SIZE,     0,
+      PP_GRAPHICS3DATTRIB_STENCIL_SIZE,   0,
+      PP_GRAPHICS3DATTRIB_SAMPLES,        0,
+      PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS, 0,
+      PP_GRAPHICS3DATTRIB_WIDTH,          plugin_size_.width(),
+      PP_GRAPHICS3DATTRIB_HEIGHT,         plugin_size_.height(),
+      PP_GRAPHICS3DATTRIB_NONE,
   };
   context_ = new pp::Graphics3D(this, context_attributes);
   assert(!context_->is_null());
   assert(BindGraphics(*context_));
 
   // Clear color bit.
   gles2_if_->ClearColor(context_->pp_resource(), 1, 0, 0, 1);
   gles2_if_->Clear(context_->pp_resource(), GL_COLOR_BUFFER_BIT);
 
   assertNoGLError();
 
   CreateGLObjects();
 }
 
-void VideoDecodeDemoInstance::PaintFinished(int32_t result, PP_Resource decoder,
-                                      int picture_buffer_id) {
+void VideoDecodeDemoInstance::PaintFinished(int32_t result,
+                                            PP_Resource decoder,
+                                            int picture_buffer_id) {
   assert(result == PP_OK);
   swap_ticks_ += core_if_->GetTimeTicks() - last_swap_request_ticks_;
   is_painting_ = false;
   ++num_frames_rendered_;
   if (num_frames_rendered_ % 50 == 0) {
     double elapsed = core_if_->GetTimeTicks() - first_frame_delivered_ticks_;
     double fps = (elapsed > 0) ? num_frames_rendered_ / elapsed : 1000;
     double ms_per_swap = (swap_ticks_ * 1e3) / num_frames_rendered_;
     LogError(this).s() << "Rendered frames: " << num_frames_rendered_
-                       << ", fps: " << fps << ", with average ms/swap of: "
-                       << ms_per_swap;
+                       << ", fps: " << fps
+                       << ", with average ms/swap of: " << ms_per_swap;
   }
   DecoderClient* client = video_decoders_[decoder];
   if (client && client->decoder())
     client->decoder()->ReusePictureBuffer(picture_buffer_id);
   if (!pictures_pending_paint_.empty()) {
     std::pair<PP_Resource, PP_Picture_Dev> decoder_picture =
         pictures_pending_paint_.front();
     pictures_pending_paint_.pop_front();
     PictureReady(decoder_picture.first, decoder_picture.second);
   }
 }
 
 GLuint VideoDecodeDemoInstance::CreateTexture(int32_t width,
                                               int32_t height,
                                               GLenum texture_target) {
   GLuint texture_id;
   gles2_if_->GenTextures(context_->pp_resource(), 1, &texture_id);
   assertNoGLError();
   // Assign parameters.
   gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE0);
   gles2_if_->BindTexture(context_->pp_resource(), texture_target, texture_id);
-  gles2_if_->TexParameteri(
-      context_->pp_resource(), texture_target, GL_TEXTURE_MIN_FILTER,
-      GL_NEAREST);
-  gles2_if_->TexParameteri(
-      context_->pp_resource(), texture_target, GL_TEXTURE_MAG_FILTER,
-      GL_NEAREST);
-  gles2_if_->TexParameterf(
-      context_->pp_resource(), texture_target, GL_TEXTURE_WRAP_S,
-      GL_CLAMP_TO_EDGE);
-  gles2_if_->TexParameterf(
-      context_->pp_resource(), texture_target, GL_TEXTURE_WRAP_T,
-      GL_CLAMP_TO_EDGE);
+  gles2_if_->TexParameteri(context_->pp_resource(),
+                           texture_target,
+                           GL_TEXTURE_MIN_FILTER,
+                           GL_NEAREST);
+  gles2_if_->TexParameteri(context_->pp_resource(),
+                           texture_target,
+                           GL_TEXTURE_MAG_FILTER,
+                           GL_NEAREST);
+  gles2_if_->TexParameterf(context_->pp_resource(),
+                           texture_target,
+                           GL_TEXTURE_WRAP_S,
+                           GL_CLAMP_TO_EDGE);
+  gles2_if_->TexParameterf(context_->pp_resource(),
+                           texture_target,
+                           GL_TEXTURE_WRAP_T,
+                           GL_CLAMP_TO_EDGE);
 
   if (texture_target == GL_TEXTURE_2D) {
-    gles2_if_->TexImage2D(
-        context_->pp_resource(), texture_target, 0, GL_RGBA, width, height, 0,
-        GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+    gles2_if_->TexImage2D(context_->pp_resource(),
+                          texture_target,
+                          0,
+                          GL_RGBA,
+                          width,
+                          height,
+                          0,
+                          GL_RGBA,
+                          GL_UNSIGNED_BYTE,
+                          NULL);
   }
   assertNoGLError();
   return texture_id;
 }
 
 void VideoDecodeDemoInstance::DeleteTexture(GLuint id) {
   gles2_if_->DeleteTextures(context_->pp_resource(), 1, &id);
 }
 
 void VideoDecodeDemoInstance::CreateGLObjects() {
   // Assign vertex positions and texture coordinates to buffers for use in
   // shader program.
   static const float kVertices[] = {
-    -1, 1, -1, -1, 1, 1, 1, -1,  // Position coordinates.
-    0, 1, 0, 0, 1, 1, 1, 0,      // Texture coordinates.
+      -1, 1, -1, -1, 1, 1, 1, -1,  // Position coordinates.
+      0,  1, 0,  0,  1, 1, 1, 0,   // Texture coordinates.
   };
 
   GLuint buffer;
   gles2_if_->GenBuffers(context_->pp_resource(), 1, &buffer);
   gles2_if_->BindBuffer(context_->pp_resource(), GL_ARRAY_BUFFER, buffer);
 
-  gles2_if_->BufferData(context_->pp_resource(), GL_ARRAY_BUFFER,
-                        sizeof(kVertices), kVertices, GL_STATIC_DRAW);
+  gles2_if_->BufferData(context_->pp_resource(),
+                        GL_ARRAY_BUFFER,
+                        sizeof(kVertices),
+                        kVertices,
+                        GL_STATIC_DRAW);
   assertNoGLError();
 }
 
 static const char kVertexShader[] =
     "varying vec2 v_texCoord;            \n"
     "attribute vec4 a_position;          \n"
     "attribute vec2 a_texCoord;          \n"
     "uniform vec2 v_scale;               \n"
     "void main()                         \n"
     "{                                   \n"
@@ skipping 31 matching lines @@
   shader_rectangle_arb_ =
       CreateProgram(kVertexShader, kFragmentShaderRectangle);
 }
 
 Shader VideoDecodeDemoInstance::CreateProgram(const char* vertex_shader,
                                               const char* fragment_shader) {
   Shader shader;
 
   // Create shader program.
   shader.program = gles2_if_->CreateProgram(context_->pp_resource());
-  CreateShader(shader.program, GL_VERTEX_SHADER, vertex_shader,
-               strlen(vertex_shader));
-  CreateShader(shader.program, GL_FRAGMENT_SHADER, fragment_shader,
+  CreateShader(
+      shader.program, GL_VERTEX_SHADER, vertex_shader, strlen(vertex_shader));
+  CreateShader(shader.program,
+               GL_FRAGMENT_SHADER,
+               fragment_shader,
                strlen(fragment_shader));
   gles2_if_->LinkProgram(context_->pp_resource(), shader.program);
   gles2_if_->UseProgram(context_->pp_resource(), shader.program);
   gles2_if_->Uniform1i(
       context_->pp_resource(),
       gles2_if_->GetUniformLocation(
-          context_->pp_resource(), shader.program, "s_texture"), 0);
+          context_->pp_resource(), shader.program, "s_texture"),
+      0);
   assertNoGLError();
 
   shader.texcoord_scale_location = gles2_if_->GetUniformLocation(
       context_->pp_resource(), shader.program, "v_scale");
 
   GLint pos_location = gles2_if_->GetAttribLocation(
       context_->pp_resource(), shader.program, "a_position");
   GLint tc_location = gles2_if_->GetAttribLocation(
       context_->pp_resource(), shader.program, "a_texCoord");
   assertNoGLError();
 
   gles2_if_->EnableVertexAttribArray(context_->pp_resource(), pos_location);
-  gles2_if_->VertexAttribPointer(context_->pp_resource(), pos_location, 2,
-                                 GL_FLOAT, GL_FALSE, 0, 0);
+  gles2_if_->VertexAttribPointer(
+      context_->pp_resource(), pos_location, 2, GL_FLOAT, GL_FALSE, 0, 0);
   gles2_if_->EnableVertexAttribArray(context_->pp_resource(), tc_location);
   gles2_if_->VertexAttribPointer(
-      context_->pp_resource(), tc_location, 2, GL_FLOAT, GL_FALSE, 0,
+      context_->pp_resource(),
+      tc_location,
+      2,
+      GL_FLOAT,
+      GL_FALSE,
+      0,
       static_cast<float*>(0) + 8);  // Skip position coordinates.
 
   gles2_if_->UseProgram(context_->pp_resource(), 0);
   assertNoGLError();
   return shader;
 }
 
-void VideoDecodeDemoInstance::CreateShader(
-    GLuint program, GLenum type, const char* source, int size) {
+void VideoDecodeDemoInstance::CreateShader(GLuint program,
+                                           GLenum type,
+                                           const char* source,
+                                           int size) {
   GLuint shader = gles2_if_->CreateShader(context_->pp_resource(), type);
   gles2_if_->ShaderSource(context_->pp_resource(), shader, 1, &source, &size);
   gles2_if_->CompileShader(context_->pp_resource(), shader);
   gles2_if_->AttachShader(context_->pp_resource(), program, shader);
   gles2_if_->DeleteShader(context_->pp_resource(), shader);
 }
 }  // anonymous namespace
 
 namespace pp {
 // Factory function for your specialization of the Module object.
 Module* CreateModule() {
   return new VideoDecodeDemoModule();
 }
 }  // namespace pp