Reland of Delete video_render module.

webrtc/modules/video_render/ios/video_render_ios_view.mm

-/*
- *  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.
- */
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-#include <memory>
-
-#include "webrtc/modules/video_render/ios/video_render_ios_view.h"
-#include "webrtc/system_wrappers/include/trace.h"
-
-using namespace webrtc;
-
-@implementation VideoRenderIosView {
-  EAGLContext* _context;
-  std::unique_ptr<webrtc::OpenGles20> _gles_renderer20;
-  int _frameBufferWidth;
-  int _frameBufferHeight;
-  unsigned int _defaultFrameBuffer;
-  unsigned int _colorRenderBuffer;
-}
-
-@synthesize context = context_;
-
-+ (Class)layerClass {
-  return [CAEAGLLayer class];
-}
-
-- (id)initWithCoder:(NSCoder*)coder {
-  // init super class
-  self = [super initWithCoder:coder];
-  if (self) {
-    _gles_renderer20.reset(new OpenGles20());
-  }
-  return self;
-}
-
-- (id)init {
-  // init super class
-  self = [super init];
-  if (self) {
-    _gles_renderer20.reset(new OpenGles20());
-  }
-  return self;
-}
-
-- (id)initWithFrame:(CGRect)frame {
-  // init super class
-  self = [super initWithFrame:frame];
-  if (self) {
-    _gles_renderer20.reset(new OpenGles20());
-  }
-  return self;
-}
-
-- (void)dealloc {
-  if (_defaultFrameBuffer) {
-    glDeleteFramebuffers(1, &_defaultFrameBuffer);
-    _defaultFrameBuffer = 0;
-  }
-
-  if (_colorRenderBuffer) {
-    glDeleteRenderbuffers(1, &_colorRenderBuffer);
-    _colorRenderBuffer = 0;
-  }
-
-  [EAGLContext setCurrentContext:nil];
-}
-
-- (NSString*)description {
-  return [NSString stringWithFormat:
-          @"A WebRTC implemented subclass of UIView."
-          "+Class method is overwritten, along with custom methods"];
-}
-
-- (BOOL)createContext {
-  // create OpenGLES context from self layer class
-  CAEAGLLayer* eagl_layer = (CAEAGLLayer*)self.layer;
-  eagl_layer.opaque = YES;
-  eagl_layer.drawableProperties =
-      [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:NO],
-          kEAGLDrawablePropertyRetainedBacking,
-          kEAGLColorFormatRGBA8,
-          kEAGLDrawablePropertyColorFormat,
-          nil];
-  _context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
-
-  if (!_context) {
-    return NO;
-  }
-
-  if (![EAGLContext setCurrentContext:_context]) {
-    return NO;
-  }
-
-  // generates and binds the OpenGLES buffers
-  glGenFramebuffers(1, &_defaultFrameBuffer);
-  glBindFramebuffer(GL_FRAMEBUFFER, _defaultFrameBuffer);
-
-  // Create color render buffer and allocate backing store.
-  glGenRenderbuffers(1, &_colorRenderBuffer);
-  glBindRenderbuffer(GL_RENDERBUFFER, _colorRenderBuffer);
-  [_context renderbufferStorage:GL_RENDERBUFFER
-                   fromDrawable:(CAEAGLLayer*)self.layer];
-  glGetRenderbufferParameteriv(
-      GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, &_frameBufferWidth);
-  glGetRenderbufferParameteriv(
-      GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT, &_frameBufferHeight);
-  glFramebufferRenderbuffer(GL_FRAMEBUFFER,
-                            GL_COLOR_ATTACHMENT0,
-                            GL_RENDERBUFFER,
-                            _colorRenderBuffer);
-
-  if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
-    return NO;
-  }
-
-  // set the frame buffer
-  glBindFramebuffer(GL_FRAMEBUFFER, _defaultFrameBuffer);
-  glViewport(0, 0, self.frame.size.width, self.frame.size.height);
-
-  return _gles_renderer20->Setup([self bounds].size.width,
-                                 [self bounds].size.height);
-}
-
-- (BOOL)presentFramebuffer {
-  if (![_context presentRenderbuffer:GL_RENDERBUFFER]) {
-    WEBRTC_TRACE(kTraceWarning,
-                 kTraceVideoRenderer,
-                 0,
-                 "%s:%d [context present_renderbuffer] "
-                 "returned false",
-                 __FUNCTION__,
-                 __LINE__);
-  }
-  return YES;
-}
-
-- (BOOL)renderFrame:(VideoFrame*)frameToRender {
-  if (![EAGLContext setCurrentContext:_context]) {
-    return NO;
-  }
-
-  return _gles_renderer20->Render(*frameToRender);
-}
-
-- (BOOL)setCoordinatesForZOrder:(const float)zOrder
-                           Left:(const float)left
-                            Top:(const float)top
-                          Right:(const float)right
-                         Bottom:(const float)bottom {
-  return _gles_renderer20->SetCoordinates(zOrder, left, top, right, bottom);
-}
-
-@end