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Diffstat (limited to 'third_party/libwebrtc/test/gl/gl_renderer.cc')
-rw-r--r--third_party/libwebrtc/test/gl/gl_renderer.cc112
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