2010-11-12 17:29:14 +08:00
/****************************************************************************
2011-03-19 14:45:51 +08:00
Copyright ( c ) 2009 Jason Booth
2014-01-07 11:25:07 +08:00
Copyright ( c ) 2010 - 2012 cocos2d - x . org
2016-08-05 09:42:15 +08:00
Copyright ( c ) 2013 - 2016 Chukong Technologies Inc .
2010-11-12 17:29:14 +08:00
http : //www.cocos2d-x.org
Permission is hereby granted , free of charge , to any person obtaining a copy
of this software and associated documentation files ( the " Software " ) , to deal
in the Software without restriction , including without limitation the rights
to use , copy , modify , merge , publish , distribute , sublicense , and / or sell
copies of the Software , and to permit persons to whom the Software is
furnished to do so , subject to the following conditions :
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software .
THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS OR
IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT . IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM , DAMAGES OR OTHER
LIABILITY , WHETHER IN AN ACTION OF CONTRACT , TORT OR OTHERWISE , ARISING FROM ,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2014-05-01 10:09:13 +08:00
# include "2d/CCRenderTexture.h"
2014-05-17 05:36:00 +08:00
# include "base/ccUtils.h"
# include "platform/CCFileUtils.h"
# include "base/CCEventType.h"
# include "base/CCConfiguration.h"
2014-04-30 08:37:36 +08:00
# include "base/CCDirector.h"
2014-05-17 05:36:00 +08:00
# include "base/CCEventListenerCustom.h"
# include "base/CCEventDispatcher.h"
2014-04-30 08:37:36 +08:00
# include "renderer/CCRenderer.h"
2015-06-01 14:26:08 +08:00
# include "2d/CCCamera.h"
2015-07-15 13:47:10 +08:00
# include "renderer/CCTextureCache.h"
2010-11-12 17:29:14 +08:00
2012-03-14 14:55:17 +08:00
NS_CC_BEGIN
2010-08-18 15:15:02 +08:00
2013-06-20 14:13:12 +08:00
// implementation RenderTexture
RenderTexture : : RenderTexture ( )
2014-10-30 22:25:46 +08:00
: _keepMatrix ( false )
, _rtTextureRect ( Rect : : ZERO )
, _fullRect ( Rect : : ZERO )
, _fullviewPort ( Rect : : ZERO )
, _FBO ( 0 )
2017-01-20 09:59:02 +08:00
, _depthRenderBuffer ( 0 )
, _stencilRenderBuffer ( 0 )
2013-06-15 14:03:30 +08:00
, _oldFBO ( 0 )
, _texture ( 0 )
, _textureCopy ( 0 )
2013-12-18 17:47:20 +08:00
, _UITextureImage ( nullptr )
2013-07-26 04:36:19 +08:00
, _pixelFormat ( Texture2D : : PixelFormat : : RGBA8888 )
2013-06-15 14:03:30 +08:00
, _clearFlags ( 0 )
2013-07-05 16:49:22 +08:00
, _clearColor ( Color4F ( 0 , 0 , 0 , 0 ) )
2013-06-15 14:03:30 +08:00
, _clearDepth ( 0.0f )
, _clearStencil ( 0 )
, _autoDraw ( false )
2013-12-18 17:47:20 +08:00
, _sprite ( nullptr )
2014-08-12 10:50:57 +08:00
, _saveFileCallback ( nullptr )
2010-12-25 15:09:42 +08:00
{
2012-11-30 07:04:07 +08:00
# if CC_ENABLE_CACHE_TEXTURE_DATA
2012-06-14 18:37:57 +08:00
// Listen this event to save render texture before come to background.
// Then it can be restored after coming to foreground on Android.
2013-12-31 10:54:37 +08:00
auto toBackgroundListener = EventListenerCustom : : create ( EVENT_COME_TO_BACKGROUND , CC_CALLBACK_1 ( RenderTexture : : listenToBackground , this ) ) ;
_eventDispatcher - > addEventListenerWithSceneGraphPriority ( toBackgroundListener , this ) ;
auto toForegroundListener = EventListenerCustom : : create ( EVENT_COME_TO_FOREGROUND , CC_CALLBACK_1 ( RenderTexture : : listenToForeground , this ) ) ;
_eventDispatcher - > addEventListenerWithSceneGraphPriority ( toForegroundListener , this ) ;
2012-11-30 07:04:07 +08:00
# endif
2010-12-25 15:09:42 +08:00
}
2010-08-18 15:15:02 +08:00
2013-06-20 14:13:12 +08:00
RenderTexture : : ~ RenderTexture ( )
2010-12-25 15:09:42 +08:00
{
2013-06-15 14:03:30 +08:00
CC_SAFE_RELEASE ( _sprite ) ;
CC_SAFE_RELEASE ( _textureCopy ) ;
2012-10-10 11:36:02 +08:00
2013-06-15 14:03:30 +08:00
glDeleteFramebuffers ( 1 , & _FBO ) ;
2017-01-20 09:59:02 +08:00
if ( _depthRenderBuffer )
2012-06-12 01:43:07 +08:00
{
2017-01-20 09:59:02 +08:00
glDeleteRenderbuffers ( 1 , & _depthRenderBuffer ) ;
2012-06-12 01:43:07 +08:00
}
2015-12-17 09:34:51 +08:00
2017-01-20 09:59:02 +08:00
if ( _stencilRenderBuffer )
2015-12-17 09:34:51 +08:00
{
2017-01-20 09:59:02 +08:00
glDeleteRenderbuffers ( 1 , & _stencilRenderBuffer ) ;
2015-12-17 09:34:51 +08:00
}
2013-06-15 14:03:30 +08:00
CC_SAFE_DELETE ( _UITextureImage ) ;
2012-06-14 18:37:57 +08:00
}
2016-11-09 10:34:50 +08:00
void RenderTexture : : listenToBackground ( EventCustom * /*event*/ )
2012-06-14 18:37:57 +08:00
{
2014-07-17 17:03:10 +08:00
// We have not found a way to dispatch the enter background message before the texture data are destroyed.
// So we disable this pair of message handler at present.
2012-06-14 18:37:57 +08:00
# if CC_ENABLE_CACHE_TEXTURE_DATA
2013-06-15 14:03:30 +08:00
CC_SAFE_DELETE ( _UITextureImage ) ;
2012-06-14 18:37:57 +08:00
// to get the rendered texture data
2013-06-20 14:13:12 +08:00
_UITextureImage = newImage ( false ) ;
2012-06-14 18:37:57 +08:00
2013-06-15 14:03:30 +08:00
if ( _UITextureImage )
2012-06-14 18:37:57 +08:00
{
2013-06-20 14:13:12 +08:00
const Size & s = _texture - > getContentSizeInPixels ( ) ;
2013-11-08 16:47:33 +08:00
VolatileTextureMgr : : addDataTexture ( _texture , _UITextureImage - > getData ( ) , s . width * s . height * 4 , Texture2D : : PixelFormat : : RGBA8888 , s ) ;
2012-11-30 07:04:07 +08:00
2013-06-15 14:03:30 +08:00
if ( _textureCopy )
2012-11-30 07:04:07 +08:00
{
2013-11-08 16:47:33 +08:00
VolatileTextureMgr : : addDataTexture ( _textureCopy , _UITextureImage - > getData ( ) , s . width * s . height * 4 , Texture2D : : PixelFormat : : RGBA8888 , s ) ;
2012-11-30 07:04:07 +08:00
}
}
2012-06-14 18:37:57 +08:00
else
{
CCLOG ( " Cache rendertexture failed! " ) ;
}
2012-11-30 07:04:07 +08:00
2013-06-15 14:03:30 +08:00
glDeleteFramebuffers ( 1 , & _FBO ) ;
_FBO = 0 ;
2012-11-30 07:04:07 +08:00
# endif
}
2016-11-09 10:34:50 +08:00
void RenderTexture : : listenToForeground ( EventCustom * /*event*/ )
2012-11-30 07:04:07 +08:00
{
# if CC_ENABLE_CACHE_TEXTURE_DATA
// -- regenerate frame buffer object and attach the texture
2013-06-15 14:03:30 +08:00
glGetIntegerv ( GL_FRAMEBUFFER_BINDING , & _oldFBO ) ;
2012-11-30 07:04:07 +08:00
2013-06-15 14:03:30 +08:00
glGenFramebuffers ( 1 , & _FBO ) ;
glBindFramebuffer ( GL_FRAMEBUFFER , _FBO ) ;
2012-11-30 07:04:07 +08:00
2013-06-15 14:03:30 +08:00
_texture - > setAliasTexParameters ( ) ;
2012-11-30 07:04:07 +08:00
2013-06-15 14:03:30 +08:00
if ( _textureCopy )
2012-11-30 07:04:07 +08:00
{
2013-06-15 14:03:30 +08:00
_textureCopy - > setAliasTexParameters ( ) ;
2012-11-30 07:04:07 +08:00
}
2013-06-15 14:03:30 +08:00
glFramebufferTexture2D ( GL_FRAMEBUFFER , GL_COLOR_ATTACHMENT0 , GL_TEXTURE_2D , _texture - > getName ( ) , 0 ) ;
glBindFramebuffer ( GL_FRAMEBUFFER , _oldFBO ) ;
2012-06-14 18:37:57 +08:00
# endif
2010-12-25 15:09:42 +08:00
}
2013-07-25 19:52:44 +08:00
RenderTexture * RenderTexture : : create ( int w , int h , Texture2D : : PixelFormat eFormat )
2010-12-25 15:09:42 +08:00
{
2014-08-28 07:31:57 +08:00
RenderTexture * ret = new ( std : : nothrow ) RenderTexture ( ) ;
2010-12-25 15:09:42 +08:00
2013-12-18 17:47:20 +08:00
if ( ret & & ret - > initWithWidthAndHeight ( w , h , eFormat ) )
2010-12-25 15:09:42 +08:00
{
2013-12-18 17:47:20 +08:00
ret - > autorelease ( ) ;
return ret ;
2010-12-25 15:09:42 +08:00
}
2013-12-18 17:47:20 +08:00
CC_SAFE_DELETE ( ret ) ;
return nullptr ;
2010-12-25 15:09:42 +08:00
}
2013-07-25 19:52:44 +08:00
RenderTexture * RenderTexture : : create ( int w , int h , Texture2D : : PixelFormat eFormat , GLuint uDepthStencilFormat )
2012-06-12 01:43:07 +08:00
{
2014-08-28 07:31:57 +08:00
RenderTexture * ret = new ( std : : nothrow ) RenderTexture ( ) ;
2012-06-12 01:43:07 +08:00
2013-12-18 17:47:20 +08:00
if ( ret & & ret - > initWithWidthAndHeight ( w , h , eFormat , uDepthStencilFormat ) )
2012-06-12 01:43:07 +08:00
{
2013-12-18 17:47:20 +08:00
ret - > autorelease ( ) ;
return ret ;
2012-06-12 01:43:07 +08:00
}
2013-12-18 17:47:20 +08:00
CC_SAFE_DELETE ( ret ) ;
return nullptr ;
2012-06-12 01:43:07 +08:00
}
2013-06-20 14:13:12 +08:00
RenderTexture * RenderTexture : : create ( int w , int h )
2010-12-25 15:09:42 +08:00
{
2014-08-28 07:31:57 +08:00
RenderTexture * ret = new ( std : : nothrow ) RenderTexture ( ) ;
2010-12-25 15:09:42 +08:00
2013-12-18 17:47:20 +08:00
if ( ret & & ret - > initWithWidthAndHeight ( w , h , Texture2D : : PixelFormat : : RGBA8888 , 0 ) )
2012-04-19 14:35:52 +08:00
{
2013-12-18 17:47:20 +08:00
ret - > autorelease ( ) ;
return ret ;
2012-04-19 14:35:52 +08:00
}
2013-12-18 17:47:20 +08:00
CC_SAFE_DELETE ( ret ) ;
return nullptr ;
2010-12-25 15:09:42 +08:00
}
2011-06-03 15:22:50 +08:00
2013-07-25 19:52:44 +08:00
bool RenderTexture : : initWithWidthAndHeight ( int w , int h , Texture2D : : PixelFormat eFormat )
2012-06-12 01:43:07 +08:00
{
return initWithWidthAndHeight ( w , h , eFormat , 0 ) ;
}
2013-12-18 17:47:20 +08:00
bool RenderTexture : : initWithWidthAndHeight ( int w , int h , Texture2D : : PixelFormat format , GLuint depthStencilFormat )
2010-12-25 15:09:42 +08:00
{
2013-12-18 17:47:20 +08:00
CCASSERT ( format ! = Texture2D : : PixelFormat : : A8 , " only RGB and RGBA formats are valid for a render texture " ) ;
2012-03-22 16:36:03 +08:00
2013-12-18 17:47:20 +08:00
bool ret = false ;
void * data = nullptr ;
2010-12-25 15:09:42 +08:00
do
{
2014-03-04 10:41:03 +08:00
_fullRect = _rtTextureRect = Rect ( 0 , 0 , w , h ) ;
2014-04-29 15:08:44 +08:00
//Size size = Director::getInstance()->getWinSizeInPixels();
//_fullviewPort = Rect(0,0,size.width,size.height);
2012-10-13 18:19:37 +08:00
w = ( int ) ( w * CC_CONTENT_SCALE_FACTOR ( ) ) ;
h = ( int ) ( h * CC_CONTENT_SCALE_FACTOR ( ) ) ;
2014-04-29 15:08:44 +08:00
_fullviewPort = Rect ( 0 , 0 , w , h ) ;
2013-06-15 14:03:30 +08:00
glGetIntegerv ( GL_FRAMEBUFFER_BINDING , & _oldFBO ) ;
2010-08-18 15:15:02 +08:00
2010-12-25 15:09:42 +08:00
// textures must be power of two squared
2013-12-05 17:19:01 +08:00
int powW = 0 ;
int powH = 0 ;
2012-04-19 14:35:52 +08:00
2013-07-12 06:24:23 +08:00
if ( Configuration : : getInstance ( ) - > supportsNPOT ( ) )
2012-10-10 11:36:02 +08:00
{
2012-04-19 14:35:52 +08:00
powW = w ;
powH = h ;
2012-10-10 11:36:02 +08:00
}
else
{
2012-04-19 14:35:52 +08:00
powW = ccNextPOT ( w ) ;
powH = ccNextPOT ( h ) ;
}
2010-08-18 15:15:02 +08:00
2013-12-05 17:19:01 +08:00
auto dataLen = powW * powH * 4 ;
2013-07-25 21:35:00 +08:00
data = malloc ( dataLen ) ;
2011-03-07 17:11:57 +08:00
CC_BREAK_IF ( ! data ) ;
2010-08-18 15:15:02 +08:00
2013-07-25 21:35:00 +08:00
memset ( data , 0 , dataLen ) ;
2013-12-18 17:47:20 +08:00
_pixelFormat = format ;
2010-08-18 15:15:02 +08:00
2014-08-28 07:31:57 +08:00
_texture = new ( std : : nothrow ) Texture2D ( ) ;
2013-06-15 14:03:30 +08:00
if ( _texture )
2012-10-10 11:36:02 +08:00
{
2013-07-27 22:06:30 +08:00
_texture - > initWithData ( data , dataLen , ( Texture2D : : PixelFormat ) _pixelFormat , powW , powH , Size ( ( float ) w , ( float ) h ) ) ;
2012-10-10 11:36:02 +08:00
}
else
{
break ;
2012-08-21 07:40:26 +08:00
}
2012-06-12 01:43:07 +08:00
GLint oldRBO ;
glGetIntegerv ( GL_RENDERBUFFER_BINDING , & oldRBO ) ;
2012-10-10 11:36:02 +08:00
2013-07-12 06:24:23 +08:00
if ( Configuration : : getInstance ( ) - > checkForGLExtension ( " GL_QCOM " ) )
2012-10-10 11:36:02 +08:00
{
2014-08-28 07:31:57 +08:00
_textureCopy = new ( std : : nothrow ) Texture2D ( ) ;
2013-06-15 14:03:30 +08:00
if ( _textureCopy )
2012-10-10 11:36:02 +08:00
{
2013-07-27 22:06:30 +08:00
_textureCopy - > initWithData ( data , dataLen , ( Texture2D : : PixelFormat ) _pixelFormat , powW , powH , Size ( ( float ) w , ( float ) h ) ) ;
2012-10-10 11:36:02 +08:00
}
else
{
break ;
}
}
2012-06-12 01:43:07 +08:00
2010-12-25 15:09:42 +08:00
// generate FBO
2013-06-15 14:03:30 +08:00
glGenFramebuffers ( 1 , & _FBO ) ;
glBindFramebuffer ( GL_FRAMEBUFFER , _FBO ) ;
2010-12-25 15:09:42 +08:00
// associate texture with FBO
2013-06-15 14:03:30 +08:00
glFramebufferTexture2D ( GL_FRAMEBUFFER , GL_COLOR_ATTACHMENT0 , GL_TEXTURE_2D , _texture - > getName ( ) , 0 ) ;
2010-12-25 15:09:42 +08:00
2013-12-18 17:47:20 +08:00
if ( depthStencilFormat ! = 0 )
2012-06-12 01:43:07 +08:00
{
2015-12-17 09:34:51 +08:00
2015-12-17 14:40:16 +08:00
# if(CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
if ( Configuration : : getInstance ( ) - > supportsOESPackedDepthStencil ( ) )
2015-12-17 09:34:51 +08:00
{
//create and attach depth buffer
2017-01-20 09:59:02 +08:00
glGenRenderbuffers ( 1 , & _depthRenderBuffer ) ;
glBindRenderbuffer ( GL_RENDERBUFFER , _depthRenderBuffer ) ;
2015-12-17 09:34:51 +08:00
glRenderbufferStorage ( GL_RENDERBUFFER , depthStencilFormat , ( GLsizei ) powW , ( GLsizei ) powH ) ;
2017-01-20 09:59:02 +08:00
glFramebufferRenderbuffer ( GL_FRAMEBUFFER , GL_DEPTH_ATTACHMENT , GL_RENDERBUFFER , _depthRenderBuffer ) ;
2015-12-17 09:34:51 +08:00
// if depth format is the one with stencil part, bind same render buffer as stencil attachment
if ( depthStencilFormat = = GL_DEPTH24_STENCIL8 )
{
2017-01-20 09:59:02 +08:00
glFramebufferRenderbuffer ( GL_FRAMEBUFFER , GL_STENCIL_ATTACHMENT , GL_RENDERBUFFER , _depthRenderBuffer ) ;
2015-12-17 09:34:51 +08:00
}
}
else
2012-10-10 11:36:02 +08:00
{
2015-12-17 14:40:16 +08:00
2017-01-20 09:59:02 +08:00
glGenRenderbuffers ( 1 , & _depthRenderBuffer ) ;
glGenRenderbuffers ( 1 , & _stencilRenderBuffer ) ;
glBindRenderbuffer ( GL_RENDERBUFFER , _depthRenderBuffer ) ;
2015-12-17 09:34:51 +08:00
2015-12-18 10:03:23 +08:00
if ( Configuration : : getInstance ( ) - > supportsOESDepth24 ( ) )
2015-12-17 09:34:51 +08:00
{
glRenderbufferStorage ( GL_RENDERBUFFER , GL_DEPTH_COMPONENT24_OES , ( GLsizei ) powW , ( GLsizei ) powH ) ;
}
else
{
glRenderbufferStorage ( GL_RENDERBUFFER , GL_DEPTH_COMPONENT16 , ( GLsizei ) powW , ( GLsizei ) powH ) ;
}
2017-01-20 09:59:02 +08:00
glBindRenderbuffer ( GL_RENDERBUFFER , _stencilRenderBuffer ) ;
2015-12-17 09:34:51 +08:00
glRenderbufferStorage ( GL_RENDERBUFFER , GL_STENCIL_INDEX8 , ( GLsizei ) powW , ( GLsizei ) powH ) ;
2017-01-20 09:59:02 +08:00
glFramebufferRenderbuffer ( GL_FRAMEBUFFER , GL_DEPTH_ATTACHMENT , GL_RENDERBUFFER , _depthRenderBuffer ) ;
2015-12-17 09:34:51 +08:00
glFramebufferRenderbuffer ( GL_FRAMEBUFFER ,
2017-01-20 09:59:02 +08:00
GL_STENCIL_ATTACHMENT , GL_RENDERBUFFER , _stencilRenderBuffer ) ;
2012-10-10 11:36:02 +08:00
}
2015-12-17 14:40:16 +08:00
# else
//create and attach depth buffer
2017-01-20 09:59:02 +08:00
glGenRenderbuffers ( 1 , & _depthRenderBuffer ) ;
glBindRenderbuffer ( GL_RENDERBUFFER , _depthRenderBuffer ) ;
2015-12-17 14:40:16 +08:00
glRenderbufferStorage ( GL_RENDERBUFFER , depthStencilFormat , ( GLsizei ) powW , ( GLsizei ) powH ) ;
2017-01-20 09:59:02 +08:00
glFramebufferRenderbuffer ( GL_FRAMEBUFFER , GL_DEPTH_ATTACHMENT , GL_RENDERBUFFER , _depthRenderBuffer ) ;
2015-12-17 14:40:16 +08:00
// if depth format is the one with stencil part, bind same render buffer as stencil attachment
if ( depthStencilFormat = = GL_DEPTH24_STENCIL8 )
{
2017-01-20 09:59:02 +08:00
glFramebufferRenderbuffer ( GL_FRAMEBUFFER , GL_STENCIL_ATTACHMENT , GL_RENDERBUFFER , _depthRenderBuffer ) ;
2015-12-17 14:40:16 +08:00
}
# endif
2012-06-12 01:43:07 +08:00
}
2010-12-25 15:09:42 +08:00
// check if it worked (probably worth doing :) )
2013-07-20 13:01:27 +08:00
CCASSERT ( glCheckFramebufferStatus ( GL_FRAMEBUFFER ) = = GL_FRAMEBUFFER_COMPLETE , " Could not attach texture to framebuffer " ) ;
2010-12-25 15:09:42 +08:00
2013-06-15 14:03:30 +08:00
_texture - > setAliasTexParameters ( ) ;
2010-12-25 15:09:42 +08:00
2012-11-14 18:05:15 +08:00
// retained
2013-06-20 14:13:12 +08:00
setSprite ( Sprite : : createWithTexture ( _texture ) ) ;
2010-12-25 15:09:42 +08:00
2013-06-15 14:03:30 +08:00
_texture - > release ( ) ;
2014-04-17 07:22:34 +08:00
_sprite - > setFlippedY ( true ) ;
2010-12-25 15:09:42 +08:00
2013-07-26 04:36:19 +08:00
_sprite - > setBlendFunc ( BlendFunc : : ALPHA_PREMULTIPLIED ) ;
2016-06-14 04:07:17 +08:00
_sprite - > setOpacityModifyRGB ( true ) ;
2010-12-25 15:09:42 +08:00
2012-06-12 01:43:07 +08:00
glBindRenderbuffer ( GL_RENDERBUFFER , oldRBO ) ;
2013-06-15 14:03:30 +08:00
glBindFramebuffer ( GL_FRAMEBUFFER , _oldFBO ) ;
2012-11-14 18:05:15 +08:00
2015-10-09 16:59:11 +08:00
// Disabled by default.
2013-06-15 14:03:30 +08:00
_autoDraw = false ;
2012-11-14 18:05:15 +08:00
// add sprite for backward compatibility
2013-06-15 14:03:30 +08:00
addChild ( _sprite ) ;
2012-11-14 18:05:15 +08:00
2013-12-18 17:47:20 +08:00
ret = true ;
2010-12-25 15:09:42 +08:00
} while ( 0 ) ;
2012-10-10 12:02:56 +08:00
CC_SAFE_FREE ( data ) ;
2012-10-10 11:36:02 +08:00
2013-12-18 17:47:20 +08:00
return ret ;
2010-12-25 15:09:42 +08:00
}
2015-12-17 21:55:47 +08:00
void RenderTexture : : setSprite ( Sprite * sprite )
{
# if CC_ENABLE_GC_FOR_NATIVE_OBJECTS
auto sEngine = ScriptEngineManager : : getInstance ( ) - > getScriptEngine ( ) ;
2016-02-16 13:43:11 +08:00
if ( sEngine )
{
if ( sprite )
sEngine - > retainScriptObject ( this , sprite ) ;
if ( _sprite )
sEngine - > releaseScriptObject ( this , _sprite ) ;
}
2015-12-17 21:55:47 +08:00
# endif // CC_ENABLE_GC_FOR_NATIVE_OBJECTS
CC_SAFE_RETAIN ( sprite ) ;
CC_SAFE_RELEASE ( _sprite ) ;
_sprite = sprite ;
}
2014-03-04 15:07:28 +08:00
void RenderTexture : : setKeepMatrix ( bool keepMatrix )
{
_keepMatrix = keepMatrix ;
}
2014-05-15 01:07:09 +08:00
void RenderTexture : : setVirtualViewport ( const Vec2 & rtBegin , const Rect & fullRect , const Rect & fullViewport )
2014-03-04 15:07:28 +08:00
{
_rtTextureRect . origin . x = rtBegin . x ;
_rtTextureRect . origin . y = rtBegin . y ;
_fullRect = fullRect ;
_fullviewPort = fullViewport ;
}
2013-06-20 14:13:12 +08:00
void RenderTexture : : beginWithClear ( float r , float g , float b , float a )
2010-12-25 15:09:42 +08:00
{
2013-12-23 19:59:09 +08:00
beginWithClear ( r , g , b , a , 0 , 0 , GL_COLOR_BUFFER_BIT ) ;
2010-12-25 15:09:42 +08:00
}
2013-06-20 14:13:12 +08:00
void RenderTexture : : beginWithClear ( float r , float g , float b , float a , float depthValue )
2012-06-12 01:43:07 +08:00
{
2013-12-23 19:59:09 +08:00
beginWithClear ( r , g , b , a , depthValue , 0 , GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ) ;
2012-06-12 01:43:07 +08:00
}
2013-06-20 14:13:12 +08:00
void RenderTexture : : beginWithClear ( float r , float g , float b , float a , float depthValue , int stencilValue )
2012-11-14 18:05:15 +08:00
{
2013-12-23 19:59:09 +08:00
beginWithClear ( r , g , b , a , depthValue , stencilValue , GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT ) ;
2012-11-14 18:05:15 +08:00
}
2013-12-23 19:59:09 +08:00
void RenderTexture : : beginWithClear ( float r , float g , float b , float a , float depthValue , int stencilValue , GLbitfield flags )
2012-06-12 01:43:07 +08:00
{
2013-12-23 17:13:06 +08:00
setClearColor ( Color4F ( r , g , b , a ) ) ;
2012-06-12 01:43:07 +08:00
2013-12-23 17:13:06 +08:00
setClearDepth ( depthValue ) ;
2012-06-12 01:43:07 +08:00
2013-12-23 17:13:06 +08:00
setClearStencil ( stencilValue ) ;
2012-06-12 01:43:07 +08:00
2013-12-23 17:13:06 +08:00
setClearFlags ( flags ) ;
2012-06-12 01:43:07 +08:00
2013-12-23 17:13:06 +08:00
this - > begin ( ) ;
2012-04-19 14:35:52 +08:00
2013-12-23 17:13:06 +08:00
//clear screen
2014-01-19 03:35:27 +08:00
_beginWithClearCommand . init ( _globalZOrder ) ;
2013-12-26 21:19:12 +08:00
_beginWithClearCommand . func = CC_CALLBACK_0 ( RenderTexture : : onClear , this ) ;
Director : : getInstance ( ) - > getRenderer ( ) - > addCommand ( & _beginWithClearCommand ) ;
2011-10-19 15:24:19 +08:00
}
2010-12-25 15:09:42 +08:00
2014-08-30 03:54:24 +08:00
//TODO: find a better way to clear the screen, there is no need to rebind render buffer there.
2013-06-20 14:13:12 +08:00
void RenderTexture : : clear ( float r , float g , float b , float a )
2010-12-25 15:09:42 +08:00
{
2012-04-19 14:35:52 +08:00
this - > beginWithClear ( r , g , b , a ) ;
this - > end ( ) ;
2010-12-25 15:09:42 +08:00
}
2013-06-20 14:13:12 +08:00
void RenderTexture : : clearDepth ( float depthValue )
2012-06-12 01:43:07 +08:00
{
2013-12-23 17:13:06 +08:00
setClearDepth ( depthValue ) ;
2012-06-12 01:43:07 +08:00
this - > begin ( ) ;
2014-01-19 03:35:27 +08:00
_clearDepthCommand . init ( _globalZOrder ) ;
2013-12-26 21:19:12 +08:00
_clearDepthCommand . func = CC_CALLBACK_0 ( RenderTexture : : onClearDepth , this ) ;
2013-12-23 17:13:06 +08:00
2013-12-26 21:19:12 +08:00
Director : : getInstance ( ) - > getRenderer ( ) - > addCommand ( & _clearDepthCommand ) ;
2012-06-12 01:43:07 +08:00
this - > end ( ) ;
}
2013-06-20 14:13:12 +08:00
void RenderTexture : : clearStencil ( int stencilValue )
2012-06-12 01:43:07 +08:00
{
// save old stencil value
int stencilClearValue ;
glGetIntegerv ( GL_STENCIL_CLEAR_VALUE , & stencilClearValue ) ;
glClearStencil ( stencilValue ) ;
glClear ( GL_STENCIL_BUFFER_BIT ) ;
// restore clear color
glClearStencil ( stencilClearValue ) ;
}
2014-05-31 07:42:05 +08:00
void RenderTexture : : visit ( Renderer * renderer , const Mat4 & parentTransform , uint32_t parentFlags )
2012-11-14 18:05:15 +08:00
{
// override visit.
2015-01-08 10:22:45 +08:00
// Don't call visit on its children
2015-06-18 10:32:30 +08:00
if ( ! _visible )
2012-11-14 18:05:15 +08:00
{
return ;
}
2015-01-08 10:22:45 +08:00
2014-05-31 07:42:05 +08:00
uint32_t flags = processParentFlags ( parentTransform , parentFlags ) ;
2014-03-01 03:20:53 +08:00
2014-05-31 07:42:05 +08:00
Director * director = Director : : getInstance ( ) ;
2014-03-01 03:20:53 +08:00
// IMPORTANT:
2014-05-15 01:07:09 +08:00
// To ease the migration to v3.0, we still support the Mat4 stack,
2014-03-01 03:20:53 +08:00
// but it is deprecated and your code should not rely on it
2014-04-03 14:32:49 +08:00
director - > pushMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_MODELVIEW ) ;
director - > loadMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_MODELVIEW , _modelViewTransform ) ;
2014-02-28 13:43:54 +08:00
2014-05-31 07:42:05 +08:00
_sprite - > visit ( renderer , _modelViewTransform , flags ) ;
2015-06-18 10:32:30 +08:00
if ( isVisitableByVisitingCamera ( ) )
{
draw ( renderer , _modelViewTransform , flags ) ;
}
2013-09-12 20:47:15 +08:00
2014-04-03 14:32:49 +08:00
director - > popMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_MODELVIEW ) ;
2012-11-14 18:05:15 +08:00
2014-09-11 15:44:31 +08:00
// FIX ME: Why need to set _orderOfArrival to 0??
// Please refer to https://github.com/cocos2d/cocos2d-x/pull/6920
// setOrderOfArrival(0);
2012-11-14 18:05:15 +08:00
}
2014-08-12 10:50:57 +08:00
bool RenderTexture : : saveToFile ( const std : : string & filename , bool isRGBA , std : : function < void ( RenderTexture * , const std : : string & ) > callback )
2010-12-25 15:09:42 +08:00
{
2014-06-13 15:27:59 +08:00
std : : string basename ( filename ) ;
std : : transform ( basename . begin ( ) , basename . end ( ) , basename . begin ( ) , : : tolower ) ;
if ( basename . find ( " .png " ) ! = std : : string : : npos )
{
2014-08-12 10:50:57 +08:00
return saveToFile ( filename , Image : : Format : : PNG , isRGBA , callback ) ;
2014-06-13 15:27:59 +08:00
}
else if ( basename . find ( " .jpg " ) ! = std : : string : : npos )
{
if ( isRGBA ) CCLOG ( " RGBA is not supported for JPG format. " ) ;
2014-08-12 10:50:57 +08:00
return saveToFile ( filename , Image : : Format : : JPG , false , callback ) ;
2014-06-13 15:27:59 +08:00
}
else
{
CCLOG ( " Only PNG and JPG format are supported now! " ) ;
}
2014-08-12 10:50:57 +08:00
return saveToFile ( filename , Image : : Format : : JPG , false , callback ) ;
2010-12-25 15:09:42 +08:00
}
2014-08-12 10:50:57 +08:00
bool RenderTexture : : saveToFile ( const std : : string & fileName , Image : : Format format , bool isRGBA , std : : function < void ( RenderTexture * , const std : : string & ) > callback )
2010-12-25 15:09:42 +08:00
{
2013-07-26 05:49:43 +08:00
CCASSERT ( format = = Image : : Format : : JPG | | format = = Image : : Format : : PNG ,
2012-04-19 14:35:52 +08:00
" the image can only be saved as JPG or PNG format " ) ;
2014-06-13 15:27:59 +08:00
if ( isRGBA & & format = = Image : : Format : : JPG ) CCLOG ( " RGBA is not supported for JPG format " ) ;
2014-03-07 17:41:51 +08:00
2014-08-12 10:50:57 +08:00
_saveFileCallback = callback ;
2014-03-07 17:41:51 +08:00
std : : string fullpath = FileUtils : : getInstance ( ) - > getWritablePath ( ) + fileName ;
_saveToFileCommand . init ( _globalZOrder ) ;
2014-06-13 13:35:18 +08:00
_saveToFileCommand . func = CC_CALLBACK_0 ( RenderTexture : : onSaveToFile , this , fullpath , isRGBA ) ;
2014-03-07 17:41:51 +08:00
Director : : getInstance ( ) - > getRenderer ( ) - > addCommand ( & _saveToFileCommand ) ;
2014-03-10 17:42:27 +08:00
return true ;
2014-03-07 17:41:51 +08:00
}
2011-07-27 16:55:04 +08:00
2014-06-13 13:35:18 +08:00
void RenderTexture : : onSaveToFile ( const std : : string & filename , bool isRGBA )
2014-03-07 17:41:51 +08:00
{
2013-07-26 05:49:43 +08:00
Image * image = newImage ( true ) ;
if ( image )
2012-04-19 14:35:52 +08:00
{
2016-02-03 23:12:37 +08:00
image - > saveToFile ( filename , ! isRGBA ) ;
2012-04-19 14:35:52 +08:00
}
2014-08-12 10:50:57 +08:00
if ( _saveFileCallback )
{
_saveFileCallback ( this , filename ) ;
}
2013-07-26 05:49:43 +08:00
CC_SAFE_DELETE ( image ) ;
2011-07-27 16:55:04 +08:00
}
2013-06-20 14:13:12 +08:00
/* get buffer as Image */
2017-01-20 09:58:29 +08:00
Image * RenderTexture : : newImage ( bool flipImage )
2011-10-19 15:24:19 +08:00
{
2013-07-26 04:36:19 +08:00
CCASSERT ( _pixelFormat = = Texture2D : : PixelFormat : : RGBA8888 , " only RGBA8888 can be saved as image " ) ;
2012-04-19 14:35:52 +08:00
2013-12-18 17:47:20 +08:00
if ( nullptr = = _texture )
2012-04-19 14:35:52 +08:00
{
2013-12-18 17:47:20 +08:00
return nullptr ;
2012-04-19 14:35:52 +08:00
}
2013-06-20 14:13:12 +08:00
const Size & s = _texture - > getContentSizeInPixels ( ) ;
2012-04-19 14:35:52 +08:00
// to get the image size to save
2012-09-17 15:02:24 +08:00
// if the saving image domain exceeds the buffer texture domain,
2012-04-19 14:35:52 +08:00
// it should be cut
2013-12-18 17:47:20 +08:00
int savedBufferWidth = ( int ) s . width ;
int savedBufferHeight = ( int ) s . height ;
2012-04-19 14:35:52 +08:00
2013-12-18 17:47:20 +08:00
GLubyte * buffer = nullptr ;
GLubyte * tempData = nullptr ;
2014-08-28 07:31:57 +08:00
Image * image = new ( std : : nothrow ) Image ( ) ;
2012-04-19 14:35:52 +08:00
do
{
2014-08-28 07:31:57 +08:00
CC_BREAK_IF ( ! ( buffer = new ( std : : nothrow ) GLubyte [ savedBufferWidth * savedBufferHeight * 4 ] ) ) ;
2012-04-19 14:35:52 +08:00
2014-08-28 07:31:57 +08:00
if ( ! ( tempData = new ( std : : nothrow ) GLubyte [ savedBufferWidth * savedBufferHeight * 4 ] ) )
2012-04-19 14:35:52 +08:00
{
2013-12-18 17:47:20 +08:00
delete [ ] buffer ;
buffer = nullptr ;
2012-04-19 14:35:52 +08:00
break ;
}
2014-02-18 10:47:14 +08:00
glGetIntegerv ( GL_FRAMEBUFFER_BINDING , & _oldFBO ) ;
glBindFramebuffer ( GL_FRAMEBUFFER , _FBO ) ;
2015-12-09 00:45:39 +08:00
// TODO: move this to configuration, so we don't check it every time
2016-02-29 16:22:56 +08:00
/* Certain Qualcomm Adreno GPU's will retain data in memory after a frame buffer switch which corrupts the render to the texture. The solution is to clear the frame buffer before rendering to the texture. However, calling glClear has the unintended result of clearing the current texture. Create a temporary texture to overcome this. At the end of RenderTexture::begin(), switch the attached texture to the second one, call glClear, and then switch back to the original texture. This solution is unnecessary for other devices as they don't have the same issue with switching frame buffers.
2014-02-18 10:47:14 +08:00
*/
if ( Configuration : : getInstance ( ) - > checkForGLExtension ( " GL_QCOM " ) )
{
// -- bind a temporary texture so we can clear the render buffer without losing our texture
glFramebufferTexture2D ( GL_FRAMEBUFFER , GL_COLOR_ATTACHMENT0 , GL_TEXTURE_2D , _textureCopy - > getName ( ) , 0 ) ;
CHECK_GL_ERROR_DEBUG ( ) ;
glClear ( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ) ;
glFramebufferTexture2D ( GL_FRAMEBUFFER , GL_COLOR_ATTACHMENT0 , GL_TEXTURE_2D , _texture - > getName ( ) , 0 ) ;
}
2012-04-19 14:35:52 +08:00
glPixelStorei ( GL_PACK_ALIGNMENT , 1 ) ;
2013-12-18 17:47:20 +08:00
glReadPixels ( 0 , 0 , savedBufferWidth , savedBufferHeight , GL_RGBA , GL_UNSIGNED_BYTE , tempData ) ;
2014-02-18 10:47:14 +08:00
glBindFramebuffer ( GL_FRAMEBUFFER , _oldFBO ) ;
2012-04-19 14:35:52 +08:00
2017-01-20 09:58:29 +08:00
if ( flipImage ) // -- flip is only required when saving image to file
2012-04-19 14:35:52 +08:00
{
2012-11-30 07:04:07 +08:00
// to get the actual texture data
// #640 the image read from rendertexture is dirty
2013-12-18 17:47:20 +08:00
for ( int i = 0 ; i < savedBufferHeight ; + + i )
2012-11-30 07:04:07 +08:00
{
2013-12-18 17:47:20 +08:00
memcpy ( & buffer [ i * savedBufferWidth * 4 ] ,
& tempData [ ( savedBufferHeight - i - 1 ) * savedBufferWidth * 4 ] ,
savedBufferWidth * 4 ) ;
2012-11-30 07:04:07 +08:00
}
2012-04-19 14:35:52 +08:00
2013-12-18 17:47:20 +08:00
image - > initWithRawData ( buffer , savedBufferWidth * savedBufferHeight * 4 , savedBufferWidth , savedBufferHeight , 8 ) ;
2012-11-30 07:04:07 +08:00
}
else
{
2013-12-18 17:47:20 +08:00
image - > initWithRawData ( tempData , savedBufferWidth * savedBufferHeight * 4 , savedBufferWidth , savedBufferHeight , 8 ) ;
2012-11-30 07:04:07 +08:00
}
2012-04-19 14:35:52 +08:00
} while ( 0 ) ;
2013-12-18 17:47:20 +08:00
CC_SAFE_DELETE_ARRAY ( buffer ) ;
CC_SAFE_DELETE_ARRAY ( tempData ) ;
2012-04-19 14:35:52 +08:00
2013-07-26 05:49:43 +08:00
return image ;
2010-12-25 15:09:42 +08:00
}
2010-11-12 17:29:14 +08:00
2013-12-23 15:59:47 +08:00
void RenderTexture : : onBegin ( )
{
//
2014-03-04 10:41:03 +08:00
Director * director = Director : : getInstance ( ) ;
2014-04-25 16:30:51 +08:00
_oldProjMatrix = director - > getMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_PROJECTION ) ;
director - > loadMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_PROJECTION , _projectionMatrix ) ;
_oldTransMatrix = director - > getMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_MODELVIEW ) ;
director - > loadMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_MODELVIEW , _transformMatrix ) ;
2014-03-04 11:06:39 +08:00
2014-03-04 10:41:03 +08:00
if ( ! _keepMatrix )
{
director - > setProjection ( director - > getProjection ( ) ) ;
2014-03-04 15:30:05 +08:00
const Size & texSize = _texture - > getContentSizeInPixels ( ) ;
2014-04-29 15:08:44 +08:00
2014-03-04 10:41:03 +08:00
// Calculate the adjustment ratios based on the old and new projections
2014-04-29 15:13:24 +08:00
Size size = director - > getWinSizeInPixels ( ) ;
2014-03-04 10:41:03 +08:00
float widthRatio = size . width / texSize . width ;
float heightRatio = size . height / texSize . height ;
2014-04-29 15:08:44 +08:00
2014-05-15 01:07:09 +08:00
Mat4 orthoMatrix ;
Mat4 : : createOrthographicOffCenter ( ( float ) - 1.0 / widthRatio , ( float ) 1.0 / widthRatio , ( float ) - 1.0 / heightRatio , ( float ) 1.0 / heightRatio , - 1 , 1 , & orthoMatrix ) ;
2014-04-29 15:08:44 +08:00
director - > multiplyMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_PROJECTION , orthoMatrix ) ;
2014-03-04 10:41:03 +08:00
}
2014-04-29 15:08:44 +08:00
2014-03-04 10:57:57 +08:00
//calculate viewport
{
Rect viewport ;
viewport . size . width = _fullviewPort . size . width ;
viewport . size . height = _fullviewPort . size . height ;
float viewPortRectWidthRatio = float ( viewport . size . width ) / _fullRect . size . width ;
float viewPortRectHeightRatio = float ( viewport . size . height ) / _fullRect . size . height ;
viewport . origin . x = ( _fullRect . origin . x - _rtTextureRect . origin . x ) * viewPortRectWidthRatio ;
viewport . origin . y = ( _fullRect . origin . y - _rtTextureRect . origin . y ) * viewPortRectHeightRatio ;
//glViewport(_fullviewPort.origin.x, _fullviewPort.origin.y, (GLsizei)_fullviewPort.size.width, (GLsizei)_fullviewPort.size.height);
glViewport ( viewport . origin . x , viewport . origin . y , ( GLsizei ) viewport . size . width , ( GLsizei ) viewport . size . height ) ;
}
2013-12-23 15:59:47 +08:00
// Adjust the orthographic projection and viewport
2014-03-04 10:57:57 +08:00
2013-12-23 15:59:47 +08:00
glGetIntegerv ( GL_FRAMEBUFFER_BINDING , & _oldFBO ) ;
glBindFramebuffer ( GL_FRAMEBUFFER , _FBO ) ;
2015-12-09 00:45:39 +08:00
// TODO: move this to configuration, so we don't check it every time
2016-02-29 16:22:56 +08:00
/* Certain Qualcomm Adreno GPU's will retain data in memory after a frame buffer switch which corrupts the render to the texture. The solution is to clear the frame buffer before rendering to the texture. However, calling glClear has the unintended result of clearing the current texture. Create a temporary texture to overcome this. At the end of RenderTexture::begin(), switch the attached texture to the second one, call glClear, and then switch back to the original texture. This solution is unnecessary for other devices as they don't have the same issue with switching frame buffers.
2013-12-23 15:59:47 +08:00
*/
if ( Configuration : : getInstance ( ) - > checkForGLExtension ( " GL_QCOM " ) )
{
// -- bind a temporary texture so we can clear the render buffer without losing our texture
glFramebufferTexture2D ( GL_FRAMEBUFFER , GL_COLOR_ATTACHMENT0 , GL_TEXTURE_2D , _textureCopy - > getName ( ) , 0 ) ;
CHECK_GL_ERROR_DEBUG ( ) ;
glClear ( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ) ;
glFramebufferTexture2D ( GL_FRAMEBUFFER , GL_COLOR_ATTACHMENT0 , GL_TEXTURE_2D , _texture - > getName ( ) , 0 ) ;
}
}
void RenderTexture : : onEnd ( )
{
Director * director = Director : : getInstance ( ) ;
glBindFramebuffer ( GL_FRAMEBUFFER , _oldFBO ) ;
// restore viewport
director - > setViewport ( ) ;
2015-06-01 14:26:08 +08:00
const auto & vp = Camera : : getDefaultViewport ( ) ;
glViewport ( vp . _left , vp . _bottom , vp . _width , vp . _height ) ;
2014-03-04 11:06:39 +08:00
//
2014-04-03 14:32:49 +08:00
director - > loadMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_PROJECTION , _oldProjMatrix ) ;
director - > loadMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_MODELVIEW , _oldTransMatrix ) ;
2013-12-23 15:59:47 +08:00
}
void RenderTexture : : onClear ( )
{
// save clear color
GLfloat oldClearColor [ 4 ] = { 0.0f } ;
GLfloat oldDepthClearValue = 0.0f ;
GLint oldStencilClearValue = 0 ;
2016-11-28 09:50:45 +08:00
GLboolean oldDepthWrite = GL_FALSE ;
2013-12-23 15:59:47 +08:00
// backup and set
if ( _clearFlags & GL_COLOR_BUFFER_BIT )
{
glGetFloatv ( GL_COLOR_CLEAR_VALUE , oldClearColor ) ;
glClearColor ( _clearColor . r , _clearColor . g , _clearColor . b , _clearColor . a ) ;
}
if ( _clearFlags & GL_DEPTH_BUFFER_BIT )
{
glGetFloatv ( GL_DEPTH_CLEAR_VALUE , & oldDepthClearValue ) ;
glClearDepth ( _clearDepth ) ;
2016-11-28 09:50:45 +08:00
glGetBooleanv ( GL_DEPTH_WRITEMASK , & oldDepthWrite ) ;
glDepthMask ( GL_TRUE ) ;
2013-12-23 15:59:47 +08:00
}
if ( _clearFlags & GL_STENCIL_BUFFER_BIT )
{
glGetIntegerv ( GL_STENCIL_CLEAR_VALUE , & oldStencilClearValue ) ;
glClearStencil ( _clearStencil ) ;
}
// clear
glClear ( _clearFlags ) ;
// restore
if ( _clearFlags & GL_COLOR_BUFFER_BIT )
{
glClearColor ( oldClearColor [ 0 ] , oldClearColor [ 1 ] , oldClearColor [ 2 ] , oldClearColor [ 3 ] ) ;
}
if ( _clearFlags & GL_DEPTH_BUFFER_BIT )
{
glClearDepth ( oldDepthClearValue ) ;
2016-11-28 09:50:45 +08:00
glDepthMask ( oldDepthWrite ) ;
2013-12-23 15:59:47 +08:00
}
if ( _clearFlags & GL_STENCIL_BUFFER_BIT )
{
glClearStencil ( oldStencilClearValue ) ;
}
}
void RenderTexture : : onClearDepth ( )
{
//! save old depth value
GLfloat depthClearValue ;
glGetFloatv ( GL_DEPTH_CLEAR_VALUE , & depthClearValue ) ;
glClearDepth ( _clearDepth ) ;
glClear ( GL_DEPTH_BUFFER_BIT ) ;
// restore clear color
glClearDepth ( depthClearValue ) ;
}
2014-05-31 07:42:05 +08:00
void RenderTexture : : draw ( Renderer * renderer , const Mat4 & transform , uint32_t flags )
2013-12-23 17:13:06 +08:00
{
if ( _autoDraw )
{
//Begin will create a render group using new render target
begin ( ) ;
//clear screen
2014-01-19 03:35:27 +08:00
_clearCommand . init ( _globalZOrder ) ;
2013-12-26 21:19:12 +08:00
_clearCommand . func = CC_CALLBACK_0 ( RenderTexture : : onClear , this ) ;
2014-02-28 13:43:54 +08:00
renderer - > addCommand ( & _clearCommand ) ;
2013-12-23 17:13:06 +08:00
//! make sure all children are drawn
sortAllChildren ( ) ;
for ( const auto & child : _children )
{
if ( child ! = _sprite )
2014-05-31 07:42:05 +08:00
child - > visit ( renderer , transform , flags ) ;
2013-12-23 17:13:06 +08:00
}
//End will pop the current render group
end ( ) ;
}
}
void RenderTexture : : begin ( )
{
2014-04-03 14:32:49 +08:00
Director * director = Director : : getInstance ( ) ;
2015-09-22 16:08:23 +08:00
CCASSERT ( nullptr ! = director , " Director is null when setting matrix stack " ) ;
2014-04-03 14:32:49 +08:00
director - > pushMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_PROJECTION ) ;
2014-04-04 18:13:10 +08:00
_projectionMatrix = director - > getMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_PROJECTION ) ;
2014-03-04 11:06:39 +08:00
2014-04-03 14:32:49 +08:00
director - > pushMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_MODELVIEW ) ;
2014-04-04 18:13:10 +08:00
_transformMatrix = director - > getMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_MODELVIEW ) ;
2014-03-04 11:06:39 +08:00
2014-03-04 10:41:03 +08:00
if ( ! _keepMatrix )
{
director - > setProjection ( director - > getProjection ( ) ) ;
const Size & texSize = _texture - > getContentSizeInPixels ( ) ;
// Calculate the adjustment ratios based on the old and new projections
Size size = director - > getWinSizeInPixels ( ) ;
2014-04-29 15:08:44 +08:00
2014-03-04 10:41:03 +08:00
float widthRatio = size . width / texSize . width ;
float heightRatio = size . height / texSize . height ;
2014-05-15 01:07:09 +08:00
Mat4 orthoMatrix ;
Mat4 : : createOrthographicOffCenter ( ( float ) - 1.0 / widthRatio , ( float ) 1.0 / widthRatio , ( float ) - 1.0 / heightRatio , ( float ) 1.0 / heightRatio , - 1 , 1 , & orthoMatrix ) ;
2014-04-29 15:08:44 +08:00
director - > multiplyMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_PROJECTION , orthoMatrix ) ;
2014-03-04 10:41:03 +08:00
}
2013-12-23 17:13:06 +08:00
2014-01-19 03:35:27 +08:00
_groupCommand . init ( _globalZOrder ) ;
2013-12-23 17:13:06 +08:00
Renderer * renderer = Director : : getInstance ( ) - > getRenderer ( ) ;
2013-12-26 18:11:23 +08:00
renderer - > addCommand ( & _groupCommand ) ;
renderer - > pushGroup ( _groupCommand . getRenderQueueID ( ) ) ;
2013-12-23 17:13:06 +08:00
2014-01-19 03:35:27 +08:00
_beginCommand . init ( _globalZOrder ) ;
2013-12-26 21:19:12 +08:00
_beginCommand . func = CC_CALLBACK_0 ( RenderTexture : : onBegin , this ) ;
2013-12-23 17:13:06 +08:00
2013-12-26 21:19:12 +08:00
Director : : getInstance ( ) - > getRenderer ( ) - > addCommand ( & _beginCommand ) ;
2013-12-23 17:13:06 +08:00
}
void RenderTexture : : end ( )
{
2014-01-19 03:35:27 +08:00
_endCommand . init ( _globalZOrder ) ;
2013-12-26 21:19:12 +08:00
_endCommand . func = CC_CALLBACK_0 ( RenderTexture : : onEnd , this ) ;
2013-12-23 17:13:06 +08:00
2014-04-03 14:32:49 +08:00
Director * director = Director : : getInstance ( ) ;
2015-09-22 16:08:23 +08:00
CCASSERT ( nullptr ! = director , " Director is null when setting matrix stack " ) ;
2014-04-03 14:32:49 +08:00
Renderer * renderer = director - > getRenderer ( ) ;
2013-12-26 21:19:12 +08:00
renderer - > addCommand ( & _endCommand ) ;
2013-12-23 17:13:06 +08:00
renderer - > popGroup ( ) ;
2014-03-04 11:06:39 +08:00
2014-04-03 14:32:49 +08:00
director - > popMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_PROJECTION ) ;
director - > popMatrix ( MATRIX_STACK_TYPE : : MATRIX_STACK_MODELVIEW ) ;
2014-03-04 10:41:03 +08:00
2013-12-23 17:13:06 +08:00
}
2012-03-14 14:55:17 +08:00
NS_CC_END