bool GridBase::initWithSize(const Size& gridSize)
{
Director *pDirector = Director::getInstance();
Size s = pDirector->getWinSizeInPixels();
unsigned long POTWide = ccNextPOT((unsigned int)s.width);
unsigned long POTHigh = ccNextPOT((unsigned int)s.height);
// we only use rgba8888
Texture2D::PixelFormat format = Texture2D::PixelFormat::RGBA8888;
long dataLen = POTWide * POTHigh * 4;
void *data = kdCalloc(dataLen, 1);
if (! data)
{
CCLOG("cocos2d: Grid: not enough memory.");
this->release();
return false;
}
Texture2D *texture = new Texture2D();
texture->initWithData(data, dataLen, format, POTWide, POTHigh, s);
kdFree(data);
if (! texture)
{
CCLOG("cocos2d: Grid: error creating texture");
return false;
}
initWithSize(gridSize, texture, false);
texture->release();
return true;
}
bool CCGridBase::initWithSize(const CCSize& gridSize)
{
CCDirector *pDirector = CCDirector::sharedDirector();
CCSize s = pDirector->getWinSizeInPixels();
unsigned long POTWide = ccNextPOT((unsigned int)s.width);
unsigned long POTHigh = ccNextPOT((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.");
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");
return false;
}
initWithSize(gridSize, pTexture, false);
pTexture->release();
return true;
}
bool RenderTexture::initWithWidthAndHeight(int w, int h, Texture2D::PixelFormat format, GLuint depthStencilFormat)
{
CCASSERT(format != Texture2D::PixelFormat::A8, "only RGB and RGBA formats are valid for a render texture");
bool ret = false;
void *data = nullptr;
do
{
_fullRect = _rtTextureRect = Rect(0,0,w,h);
Size size = Director::getInstance()->getWinSizeInPixels();
_fullviewPort = Rect(0,0,size.width,size.height);
w = (int)(w * CC_CONTENT_SCALE_FACTOR());
h = (int)(h * CC_CONTENT_SCALE_FACTOR());
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &_oldFBO);
// textures must be power of two squared
int powW = 0;
int powH = 0;
if (Configuration::getInstance()->supportsNPOT())
{
powW = w;
powH = h;
}
else
{
powW = ccNextPOT(w);
powH = ccNextPOT(h);
}
auto dataLen = powW * powH * 4;
data = malloc(dataLen);
CC_BREAK_IF(! data);
memset(data, 0, dataLen);
_pixelFormat = format;
_texture = new Texture2D();
if (_texture)
{
_texture->initWithData(data, dataLen, (Texture2D::PixelFormat)_pixelFormat, powW, powH, Size((float)w, (float)h));
}
else
{
break;
}
GLint oldRBO;
glGetIntegerv(GL_RENDERBUFFER_BINDING, &oldRBO);
if (Configuration::getInstance()->checkForGLExtension("GL_QCOM"))
{
_textureCopy = new Texture2D();
if (_textureCopy)
{
_textureCopy->initWithData(data, dataLen, (Texture2D::PixelFormat)_pixelFormat, powW, powH, Size((float)w, (float)h));
}
else
{
break;
}
}
// generate FBO
glGenFramebuffers(1, &_FBO);
glBindFramebuffer(GL_FRAMEBUFFER, _FBO);
// associate texture with FBO
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _texture->getName(), 0);
if (depthStencilFormat != 0)
{
//create and attach depth buffer
glGenRenderbuffers(1, &_depthRenderBufffer);
glBindRenderbuffer(GL_RENDERBUFFER, _depthRenderBufffer);
glRenderbufferStorage(GL_RENDERBUFFER, depthStencilFormat, (GLsizei)powW, (GLsizei)powH);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, _depthRenderBufffer);
// if depth format is the one with stencil part, bind same render buffer as stencil attachment
if (depthStencilFormat == GL_DEPTH24_STENCIL8)
{
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, _depthRenderBufffer);
}
}
// check if it worked (probably worth doing :) )
CCASSERT(glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE, "Could not attach texture to framebuffer");
_texture->setAliasTexParameters();
// retained
setSprite(Sprite::createWithTexture(_texture));
_texture->release();
_sprite->setFlippedY(true);
_sprite->setBlendFunc( BlendFunc::ALPHA_PREMULTIPLIED );
glBindRenderbuffer(GL_RENDERBUFFER, oldRBO);
glBindFramebuffer(GL_FRAMEBUFFER, _oldFBO);
// Diabled by default.
_autoDraw = false;
// add sprite for backward compatibility
addChild(_sprite);
ret = true;
} while (0);
CC_SAFE_FREE(data);
return ret;
}
bool CCRenderTexture::initWithWidthAndHeight(int w, int h, CCTexture2DPixelFormat eFormat)
{
// If the gles version is lower than GLES_VER_1_0,
// some extended gles functions can't be implemented, so return false directly.
if (CCConfiguration::sharedConfiguration()->getGlesVersion() <= GLES_VER_1_0)
{
return false;
}
bool bRet = false;
do
{
w *= (int)CC_CONTENT_SCALE_FACTOR();
h *= (int)CC_CONTENT_SCALE_FACTOR();
glGetIntegerv(CC_GL_FRAMEBUFFER_BINDING, &m_nOldFBO);
// textures must be power of two squared
unsigned int powW = ccNextPOT(w);
unsigned int powH = ccNextPOT(h);
void *data = malloc((int)(powW * powH * 4));
CC_BREAK_IF(! data);
memset(data, 0, (int)(powW * powH * 4));
m_ePixelFormat = eFormat;
m_pTexture = new CCTexture2D();
CC_BREAK_IF(! m_pTexture);
m_pTexture->initWithData(data, (CCTexture2DPixelFormat)m_ePixelFormat, powW, powH, CCSizeMake((float)w, (float)h));
free( data );
// generate FBO
ccglGenFramebuffers(1, &m_uFBO);
ccglBindFramebuffer(CC_GL_FRAMEBUFFER, m_uFBO);
// associate texture with FBO
ccglFramebufferTexture2D(CC_GL_FRAMEBUFFER, CC_GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_pTexture->getName(), 0);
// check if it worked (probably worth doing :) )
GLuint status = ccglCheckFramebufferStatus(CC_GL_FRAMEBUFFER);
if (status != CC_GL_FRAMEBUFFER_COMPLETE)
{
CCAssert(0, "Render Texture : Could not attach texture to framebuffer");
CC_SAFE_DELETE(m_pTexture);
break;
}
m_pTexture->setAliasTexParameters();
m_pSprite = CCSprite::spriteWithTexture(m_pTexture);
m_pTexture->release();
m_pSprite->setScaleY(-1);
this->addChild(m_pSprite);
ccBlendFunc tBlendFunc = {GL_ONE, GL_ONE_MINUS_SRC_ALPHA };
m_pSprite->setBlendFunc(tBlendFunc);
ccglBindFramebuffer(CC_GL_FRAMEBUFFER, m_nOldFBO);
bRet = true;
} while (0);
return bRet;
}
/* get buffer as UIImage */
bool CCRenderTexture::getUIImageFromBuffer(CCImage *pImage, int x, int y, int nWidth, int nHeight)
{
if (NULL == pImage || NULL == m_pTexture)
{
return false;
}
const CCSize& s = m_pTexture->getContentSizeInPixels();
int tx = (int)s.width;
int ty = (int)s.height;
if (x < 0 || x >= tx || y < 0 || y >= ty)
{
return false;
}
if (nWidth < 0
|| nHeight < 0
|| (0 == nWidth && 0 != nHeight)
|| (0 == nHeight && 0 != nWidth))
{
return false;
}
// to get the image size to save
// if the saving image domain exeeds the buffer texture domain,
// it should be cut
int nSavedBufferWidth = nWidth;
int nSavedBufferHeight = nHeight;
if (0 == nWidth)
{
nSavedBufferWidth = tx;
}
if (0 == nHeight)
{
nSavedBufferHeight = ty;
}
nSavedBufferWidth = x + nSavedBufferWidth > tx ? (tx - x): nSavedBufferWidth;
nSavedBufferHeight = y + nSavedBufferHeight > ty ? (ty - y): nSavedBufferHeight;
GLubyte *pBuffer = NULL;
GLubyte *pTempData = NULL;
bool bRet = false;
do
{
CCAssert(m_ePixelFormat == kCCTexture2DPixelFormat_RGBA8888, "only RGBA8888 can be saved as image");
CC_BREAK_IF(! (pBuffer = new GLubyte[nSavedBufferWidth * nSavedBufferHeight * 4]));
// On some machines, like Samsung i9000, Motorola Defy,
// the dimension need to be a power of 2
int nReadBufferWidth = 0;
int nReadBufferHeight = 0;
int nMaxTextureSize = 0;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &nMaxTextureSize);
nReadBufferWidth = ccNextPOT(tx);
nReadBufferHeight = ccNextPOT(ty);
CC_BREAK_IF(0 == nReadBufferWidth || 0 == nReadBufferHeight);
CC_BREAK_IF(nReadBufferWidth > nMaxTextureSize || nReadBufferHeight > nMaxTextureSize);
CC_BREAK_IF(! (pTempData = new GLubyte[nReadBufferWidth * nReadBufferHeight * 4]));
this->begin();
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glReadPixels(0,0,nReadBufferWidth,nReadBufferHeight,GL_RGBA,GL_UNSIGNED_BYTE, pTempData);
this->end(false);
// to get the actual texture data
// #640 the image read from rendertexture is upseted
for (int i = 0; i < nSavedBufferHeight; ++i)
{
memcpy(&pBuffer[i * nSavedBufferWidth * 4],
&pTempData[(y + nSavedBufferHeight - i - 1) * nReadBufferWidth * 4 + x * 4],
nSavedBufferWidth * 4);
}
bRet = pImage->initWithImageData(pBuffer, nSavedBufferWidth * nSavedBufferHeight * 4, CCImage::kFmtRawData, nSavedBufferWidth, nSavedBufferHeight, 8);
} while (0);
CC_SAFE_DELETE_ARRAY(pBuffer);
CC_SAFE_DELETE_ARRAY(pTempData);
return bRet;
}
bool CCRenderTexture::initWithWidthAndHeight(int w, int h, CCTexture2DPixelFormat eFormat, GLuint uDepthStencilFormat)
{
CCAssert(m_ePixelFormat != kCCTexture2DPixelFormat_A8, "only RGB and RGBA formats are valid for a render texture");
bool bRet = false;
void *data = NULL;
do
{
w = (int)(w * CC_CONTENT_SCALE_FACTOR());
h = (int)(h * CC_CONTENT_SCALE_FACTOR());
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &m_nOldFBO);
// textures must be power of two squared
unsigned int powW = 0;
unsigned int powH = 0;
if (CCConfiguration::sharedConfiguration()->supportsNPOT())
{
powW = w;
powH = h;
}
else
{
powW = ccNextPOT(w);
powH = ccNextPOT(h);
}
data = malloc((int)(powW * powH * 4));
CC_BREAK_IF(! data);
memset(data, 0, (int)(powW * powH * 4));
m_ePixelFormat = eFormat;
m_pTexture = new CCTexture2D();
if (m_pTexture)
{
m_pTexture->initWithData(data, (CCTexture2DPixelFormat)m_ePixelFormat, powW, powH, CCSizeMake((float)w, (float)h));
}
else
{
break;
}
GLint oldRBO;
glGetIntegerv(GL_RENDERBUFFER_BINDING, &oldRBO);
if (CCConfiguration::sharedConfiguration()->checkForGLExtension("GL_QCOM"))
{
m_pTextureCopy = new CCTexture2D();
if (m_pTextureCopy)
{
m_pTextureCopy->initWithData(data, (CCTexture2DPixelFormat)m_ePixelFormat, powW, powH, CCSizeMake((float)w, (float)h));
}
else
{
break;
}
}
// generate FBO
glGenFramebuffers(1, &m_uFBO);
glBindFramebuffer(GL_FRAMEBUFFER, m_uFBO);
// associate texture with FBO
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_pTexture->getName(), 0);
if (m_uDepthRenderBufffer != 0)
{
//create and attach depth buffer
glGenRenderbuffers(1, &m_uDepthRenderBufffer);
glBindRenderbuffer(GL_RENDERBUFFER, m_uDepthRenderBufffer);
glRenderbufferStorage(GL_RENDERBUFFER, uDepthStencilFormat, (GLsizei)powW, (GLsizei)powH);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, m_uDepthRenderBufffer);
// if depth format is the one with stencil part, bind same render buffer as stencil attachment
if (uDepthStencilFormat == GL_DEPTH24_STENCIL8)
{
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, m_uDepthRenderBufffer);
}
}
// check if it worked (probably worth doing :) )
CCAssert(glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE, "Could not attach texture to framebuffer");
m_pTexture->setAliasTexParameters();
// retained
setSprite(CCSprite::createWithTexture(m_pTexture));
m_pTexture->release();
m_pSprite->setScaleY(-1);
ccBlendFunc tBlendFunc = {GL_ONE, GL_ONE_MINUS_SRC_ALPHA };
m_pSprite->setBlendFunc(tBlendFunc);
glBindRenderbuffer(GL_RENDERBUFFER, oldRBO);
glBindFramebuffer(GL_FRAMEBUFFER, m_nOldFBO);
// Diabled by default.
m_bAutoDraw = false;
// add sprite for backward compatibility
addChild(m_pSprite);
bRet = true;
} while (0);
CC_SAFE_FREE(data);
return bRet;
}
