1 files changed, 112 insertions, 0 deletions
diff --git a/third_party/libwebrtc/test/gl/gl_renderer.cc b/third_party/libwebrtc/test/gl/gl_renderer.cc
new file mode 100644
index 0000000000..10162ee056
--- /dev/null
+++ b/third_party/libwebrtc/test/gl/gl_renderer.cc
@@ -0,0 +1,112 @@
+/*
+ *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "test/gl/gl_renderer.h"
+
+#include <string.h>
+
+#include "common_video/libyuv/include/webrtc_libyuv.h"
+#include "rtc_base/checks.h"
+
+namespace webrtc {
+namespace test {
+
+GlRenderer::GlRenderer()
+    : is_init_(false), buffer_(NULL), width_(0), height_(0) {}
+
+void GlRenderer::Init() {
+  RTC_DCHECK(!is_init_);
+  is_init_ = true;
+
+  glGenTextures(1, &texture_);
+}
+
+void GlRenderer::Destroy() {
+  if (!is_init_) {
+    return;
+  }
+
+  is_init_ = false;
+
+  delete[] buffer_;
+  buffer_ = NULL;
+
+  glDeleteTextures(1, &texture_);
+}
+
+void GlRenderer::ResizeViewport(size_t width, size_t height) {
+  // TODO(pbos): Aspect ratio, letterbox the video.
+  glViewport(0, 0, width, height);
+
+  glMatrixMode(GL_PROJECTION);
+  glLoadIdentity();
+  glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+  glOrtho(0.0f, 1.0f, 1.0f, 0.0f, -1.0f, 1.0f);
+  glMatrixMode(GL_MODELVIEW);
+}
+
+void GlRenderer::ResizeVideo(size_t width, size_t height) {
+  RTC_DCHECK(is_init_);
+  width_ = width;
+  height_ = height;
+
+  buffer_size_ = width * height * 4;  // BGRA
+
+  delete[] buffer_;
+  buffer_ = new uint8_t[buffer_size_];
+  RTC_DCHECK(buffer_);
+  memset(buffer_, 0, buffer_size_);
+  glBindTexture(GL_TEXTURE_2D, texture_);
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
+  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_BGRA,
+               GL_UNSIGNED_INT_8_8_8_8, static_cast<GLvoid*>(buffer_));
+}
+
+void GlRenderer::OnFrame(const webrtc::VideoFrame& frame) {
+  RTC_DCHECK(is_init_);
+
+  if (static_cast<size_t>(frame.width()) != width_ ||
+      static_cast<size_t>(frame.height()) != height_) {
+    ResizeVideo(frame.width(), frame.height());
+  }
+
+  webrtc::ConvertFromI420(frame, VideoType::kBGRA, 0, buffer_);
+
+  glEnable(GL_TEXTURE_2D);
+  glBindTexture(GL_TEXTURE_2D, texture_);
+  glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width_, height_, GL_BGRA,
+                  GL_UNSIGNED_INT_8_8_8_8, buffer_);
+
+  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+  glLoadIdentity();
+
+  glBegin(GL_QUADS);
+  {
+    glTexCoord2f(0.0f, 0.0f);
+    glVertex3f(0.0f, 0.0f, 0.0f);
+
+    glTexCoord2f(0.0f, 1.0f);
+    glVertex3f(0.0f, 1.0f, 0.0f);
+
+    glTexCoord2f(1.0f, 1.0f);
+    glVertex3f(1.0f, 1.0f, 0.0f);
+
+    glTexCoord2f(1.0f, 0.0f);
+    glVertex3f(1.0f, 0.0f, 0.0f);
+  }
+  glEnd();
+
+  glBindTexture(GL_TEXTURE_2D, 0);
+  glFlush();
+}
+}  // namespace test
+}  // namespace webrtc