void CCRenderTexture::begin()
{
// Save the current matrix
kmGLPushMatrix();
const CCSize& texSize = m_pTexture->getContentSizeInPixels();
// Calculate the adjustment ratios based on the old and new projections
CCDirector *director = CCDirector::sharedDirector();
CCSize size = director->getWinSizeInPixels();
float widthRatio = size.width / texSize.width;
float heightRatio = size.height / texSize.height;
// Adjust the orthographic projection and viewport
glViewport(0, 0, (GLsizei)texSize.width, (GLsizei)texSize.height);
kmMat4 orthoMatrix;
kmMat4OrthographicProjection(&orthoMatrix, (float)-1.0 / widthRatio, (float)1.0 / widthRatio,
(float)-1.0 / heightRatio, (float)1.0 / heightRatio, -1,1 );
kmGLMultMatrix(&orthoMatrix);
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &m_nOldFBO);
glBindFramebuffer(GL_FRAMEBUFFER, m_uFBO);
}
void Cocos2dRenderManager::initialise()
{
CCDirector *pDirector = CCDirector::sharedDirector();
MYGUI_PLATFORM_ASSERT(!mIsInitialise, getClassTypeName() << " initialised twice");
MYGUI_PLATFORM_LOG(Info, "* Initialise: " << getClassTypeName());
CCSize s = pDirector->getWinSizeInPixels();
this->setPosition(0, 0);
this->setContentSize(s);
setViewSize(int(s.width), int(s.height));
// 绑定到cocos2d节点
pDirector->setNotificationNode(this);
mInfo.pixWidth = s.width;
mInfo.pixHeight = s.height;
mVertexFormat = VertexColourType::ColourABGR;
mUpdate = true;
kmMat4 tmp;
kmGLGetMatrix(KM_GL_PROJECTION, &tmp);
kmMat4Inverse(&mMatrix, &tmp);
MYGUI_PLATFORM_LOG(Info, getClassTypeName() << " successfully initialized");
mIsInitialise = true;
CCNotificationCenter::sharedNotificationCenter()->addObserver(this,
callfuncO_selector(Cocos2dRenderManager::listenForeToBackground),
EVENT_COME_TO_BACKGROUND,
NULL);
pDirector->getScheduler()->scheduleUpdateForTarget(this, kCCPriorityNonSystemMin, false);
}
void CCRenderTexture::begin()
{
kmGLMatrixMode(KM_GL_PROJECTION);
kmGLPushMatrix();
kmGLMatrixMode(KM_GL_MODELVIEW);
kmGLPushMatrix();
CCDirector *director = CCDirector::sharedDirector();
director->setProjection(director->getProjection());
#if CC_TARGET_PLATFORM == CC_PLATFORM_WP8
kmMat4 modifiedProjection;
kmGLGetMatrix(KM_GL_PROJECTION, &modifiedProjection);
kmMat4Multiply(&modifiedProjection, CCEGLView::sharedOpenGLView()->getReverseOrientationMatrix(), &modifiedProjection);
kmGLMatrixMode(KM_GL_PROJECTION);
kmGLLoadMatrix(&modifiedProjection);
kmGLMatrixMode(KM_GL_MODELVIEW);
#endif
const CCSize& texSize = m_pTexture->getContentSizeInPixels();
// Calculate the adjustment ratios based on the old and new projections
CCSize size = director->getWinSizeInPixels();
float widthRatio = size.width / texSize.width;
float heightRatio = size.height / texSize.height;
// Adjust the orthographic projection and viewport
glViewport(0, 0, (GLsizei)texSize.width, (GLsizei)texSize.height);
kmMat4 orthoMatrix;
kmMat4OrthographicProjection(&orthoMatrix, (float)-1.0 / widthRatio, (float)1.0 / widthRatio,
(float)-1.0 / heightRatio, (float)1.0 / heightRatio, -1,1 );
kmGLMultMatrix(&orthoMatrix);
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &m_nOldFBO);
glBindFramebuffer(GL_FRAMEBUFFER, m_uFBO);
/* Certain Qualcomm Andreno 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 CCRenderTexture::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.
*/
if (CCConfiguration::sharedConfiguration()->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, m_pTextureCopy->getName(), 0);
CHECK_GL_ERROR_DEBUG();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_pTexture->getName(), 0);
}
}
void CCGridBase::set2DProjection()
{
CCDirector *director = CCDirector::sharedDirector();
CCSize size = director->getWinSizeInPixels();
glViewport(0, 0, (GLsizei)(size.width), (GLsizei)(size.height) );
kmGLMatrixMode(KM_GL_PROJECTION);
kmGLLoadIdentity();
kmMat4 orthoMatrix;
kmMat4OrthographicProjection(&orthoMatrix, 0, size.width, 0, size.height, -1, 1);
kmGLMultMatrix( &orthoMatrix );
kmGLMatrixMode(KM_GL_MODELVIEW);
kmGLLoadIdentity();
ccSetProjectionMatrixDirty();
}
void CCRenderTexture::end()
{
glBindFramebuffer(GL_FRAMEBUFFER, m_nOldFBO);
kmGLPopMatrix();
CCDirector *director = CCDirector::sharedDirector();
CCSize size = director->getWinSizeInPixels();
// restore viewport
glViewport(0, 0, GLsizei(size.width * CC_CONTENT_SCALE_FACTOR()), GLsizei(size.height * CC_CONTENT_SCALE_FACTOR()));
// special viewport for 3d projection + retina display
if ( director->getProjection() == kCCDirectorProjection3D && CC_CONTENT_SCALE_FACTOR() != 1 )
{
glViewport((GLsizei)(-size.width/2), (GLsizei)(-size.height/2), (GLsizei)(size.width * CC_CONTENT_SCALE_FACTOR()), (GLsizei)(size.height * CC_CONTENT_SCALE_FACTOR()));
}
director->setProjection(director->getProjection());
}
bool CCGridBase::initWithSize(ccGridSize gridSize)
{
CCDirector *pDirector = CCDirector::sharedDirector();
CGSize s = pDirector->getWinSizeInPixels();
unsigned int POTWide = ccNextPOT((unsigned int)s.width);
unsigned int POTHigh = ccNextPOT((unsigned int)s.height);
// on mac, it use kCCTexture2DPixelFormat_RGBA8888
CCTexture2DPixelFormat format = kCCTexture2DPixelFormat_RGBA8888;
void *data = calloc((int)(POTWide * POTHigh * 4), 1);
if (! data)
{
CCLOG("cocos2d: CCGrid: not enough memory.");
this->release();
return false;
}
CCTexture2D *pTexture = new CCTexture2D();
pTexture->initWithData(data, format, POTWide, POTHigh, s);
free(data);
if (! pTexture)
{
CCLOG("cocos2d: CCGrid: error creating texture");
delete this;
return false;
}
initWithSize(gridSize, pTexture, false);
pTexture->release();
return true;
}
bool CCGridBase::initWithSize(const ccGridSize& gridSize)
{
CCDirector *pDirector = CCDirector::sharedDirector();
CCSize s = pDirector->getWinSizeInPixels();
unsigned int POTWide = (unsigned int) s.width;
unsigned int POTHigh = (unsigned int) s.height;
bool needPOT = !g_Render->isRenderTargetNPOTSupported();
if (needPOT)
{
POTWide = PixelFormat::calcNextPot(POTWide);
POTHigh = PixelFormat::calcNextPot(POTHigh);
}
// we only use rgba8888
CCTexture2DPixelFormat format = kCCTexture2DPixelFormat_RGBA8888;
CCTexture2D *pTexture = new CCTexture2D();
if (! pTexture)
{
CCLOG("cocos2d: CCGrid: error creating texture");
delete this;
return false;
}
pTexture->initWithTexture(
new GLESTexture(POTWide, POTHigh, CCTexture2D::ToNitPixelFormat(format, false)));
initWithSize(gridSize, pTexture, false);
pTexture->release();
return true;
}
bool CCGridBase::initWithSize(const CCSize& gridSize)
{
CCDirector *pDirector = CCDirector::sharedDirector();
CCSize s = pDirector->getWinSizeInPixels();
unsigned long POTWide = CCUtils::nextPOT((unsigned int)s.width);
unsigned long POTHigh = CCUtils::nextPOT((unsigned int)s.height);
// we only use rgba8888
CCTexture2DPixelFormat format = kCCTexture2DPixelFormat_RGBA8888;
void *data = calloc((int)(POTWide * POTHigh * 4), 1);
if (! data)
{
CCLOG("cocos2d: CCGrid: not enough memory.");
CC_SAFE_RELEASE(this);
return false;
}
CCTexture2D *pTexture = new CCTexture2D();
pTexture->initWithData(data, format, POTWide, POTHigh, s);
free(data);
if (! pTexture)
{
CCLOG("cocos2d: CCGrid: error creating texture");
return false;
}
initWithSize(gridSize, pTexture, false);
CC_SAFE_RELEASE(pTexture);
return true;
}
