mirror of https://github.com/axmolengine/axmol.git
134 lines
4.1 KiB
C++
134 lines
4.1 KiB
C++
/****************************************************************************
|
|
Copyright (c) 2010-2011 cocos2d-x.org
|
|
Copyright (c) 2009 On-Core
|
|
|
|
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.
|
|
****************************************************************************/
|
|
#include "CCGrabber.h"
|
|
#include "ccMacros.h"
|
|
#include "CCTexture2D.h"
|
|
#include "platform/platform.h"
|
|
|
|
NS_CC_BEGIN
|
|
|
|
CCGrabber::CCGrabber(void)
|
|
: m_fbo(0)
|
|
, m_oldFBO(0)
|
|
{
|
|
memset(m_oldClearColor, 0, sizeof(m_oldClearColor));
|
|
m_eGlesVersion = CCConfiguration::sharedConfiguration()->getGlesVersion();
|
|
|
|
// If the gles version is lower than GLES_VER_2_0,
|
|
// all the functions in CCGrabber return directly.
|
|
if (m_eGlesVersion < GLES_VER_2_0)
|
|
{
|
|
return ;
|
|
}
|
|
|
|
// generate FBO
|
|
glGenFramebuffers(1, &m_fbo);
|
|
}
|
|
|
|
void CCGrabber::grab(CCTexture2D *pTexture)
|
|
{
|
|
// If the gles version is lower than GLES_VER_2_0,
|
|
// all the functions in CCGrabber return directly.
|
|
if (m_eGlesVersion < GLES_VER_2_0)
|
|
{
|
|
return ;
|
|
}
|
|
|
|
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &m_oldFBO);
|
|
|
|
// bind
|
|
glBindFramebuffer(GL_FRAMEBUFFER, m_fbo);
|
|
|
|
// associate texture with FBO
|
|
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pTexture->getName(), 0);
|
|
|
|
// check if it worked (probably worth doing :) )
|
|
GLuint status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
|
|
if (status != GL_FRAMEBUFFER_COMPLETE)
|
|
{
|
|
CCLOG("Frame Grabber: could not attach texture to frmaebuffer");
|
|
}
|
|
|
|
glBindFramebuffer(GL_FRAMEBUFFER, m_oldFBO);
|
|
}
|
|
|
|
void CCGrabber::beforeRender(CCTexture2D *pTexture)
|
|
{
|
|
CC_UNUSED_PARAM(pTexture);
|
|
// If the gles version is lower than GLES_VER_2_0,
|
|
// all the functions in CCGrabber return directly.
|
|
if (m_eGlesVersion < GLES_VER_2_0)
|
|
{
|
|
return ;
|
|
}
|
|
|
|
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &m_oldFBO);
|
|
glBindFramebuffer(GL_FRAMEBUFFER, m_fbo);
|
|
// save clear color
|
|
glGetFloatv(GL_COLOR_CLEAR_VALUE, m_oldClearColor);
|
|
// BUG XXX: doesn't work with RGB565.
|
|
|
|
/*glClearColor(0, 0, 0, 0);*/
|
|
|
|
// BUG #631: To fix #631, uncomment the lines with #631
|
|
// Warning: But it CCGrabber won't work with 2 effects at the same time
|
|
glClearColor(0.0f,0.0f,0.0f,1.0f); // #631
|
|
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
|
|
glColorMask(true, true, true, false); // #631
|
|
}
|
|
|
|
void CCGrabber::afterRender(cocos2d::CCTexture2D *pTexture)
|
|
{
|
|
CC_UNUSED_PARAM(pTexture);
|
|
// If the gles version is lower than GLES_VER_2_0,
|
|
// all the functions in CCGrabber return directly.
|
|
if (m_eGlesVersion < GLES_VER_2_0)
|
|
{
|
|
return ;
|
|
}
|
|
|
|
glBindFramebuffer(GL_FRAMEBUFFER, m_oldFBO);
|
|
glColorMask(true, true, true, true); // #631
|
|
// Restore clear color
|
|
glClearColor( m_oldClearColor[0], m_oldClearColor[1], m_oldClearColor[2], m_oldClearColor[3] );
|
|
}
|
|
|
|
CCGrabber::~CCGrabber()
|
|
{
|
|
// If the gles version is lower than GLES_VER_2_0,
|
|
// all the functions in CCGrabber return directly.
|
|
if (m_eGlesVersion < GLES_VER_2_0)
|
|
{
|
|
return ;
|
|
}
|
|
|
|
CCLOGINFO("cocos2d: deallocing %p", this);
|
|
glDeleteFramebuffers(1, &m_fbo);
|
|
}
|
|
|
|
NS_CC_END
|