| /* |
| * libjingle |
| * Copyright 2014 Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #import <Foundation/Foundation.h> |
| #if TARGET_OS_IPHONE |
| #import <GLKit/GLKit.h> |
| #else |
| #import <AppKit/NSOpenGL.h> |
| #endif |
| |
| @class RTCI420Frame; |
| |
| // RTCOpenGLVideoRenderer issues appropriate OpenGL commands to draw a frame to |
| // the currently bound framebuffer. Supports OpenGL 3.2 and OpenGLES 2.0. OpenGL |
| // framebuffer creation and management should be handled elsewhere using the |
| // same context used to initialize this class. |
| @interface RTCOpenGLVideoRenderer : NSObject |
| |
| // The last successfully drawn frame. Used to avoid drawing frames unnecessarily |
| // hence saving battery life by reducing load. |
| @property(nonatomic, readonly) RTCI420Frame* lastDrawnFrame; |
| |
| #if TARGET_OS_IPHONE |
| - (instancetype)initWithContext:(EAGLContext*)context; |
| #else |
| - (instancetype)initWithContext:(NSOpenGLContext*)context; |
| #endif |
| |
| // Draws |frame| onto the currently bound OpenGL framebuffer. |setupGL| must be |
| // called before this function will succeed. |
| - (BOOL)drawFrame:(RTCI420Frame*)frame; |
| |
| // The following methods are used to manage OpenGL resources. On iOS |
| // applications should release resources when placed in background for use in |
| // the foreground application. In fact, attempting to call OpenGLES commands |
| // while in background will result in application termination. |
| |
| // Sets up the OpenGL state needed for rendering. |
| - (void)setupGL; |
| // Tears down the OpenGL state created by |setupGL|. |
| - (void)teardownGL; |
| |
| #ifndef DOXYGEN_SHOULD_SKIP_THIS |
| // Disallow init and don't add to documentation |
| - (id)init __attribute__(( |
| unavailable("init is not a supported initializer for this class."))); |
| #endif /* DOXYGEN_SHOULD_SKIP_THIS */ |
| |
| @end |
