bool CCImage::_initWithPngData(void * pData, int nDatalen)
{
IW_CALLSTACK("CCImage::_initWithPngData");
bool bRet = false;
s3eFile* pFile = s3eFileOpenFromMemory(pData, nDatalen);
IwAssert(GAME, pFile);
CIwImage *image = NULL;
image = new CIwImage;
image->ReadFile( pFile);
s3eFileClose(pFile);
// init image info
m_bPreMulti = true;
m_bHasAlpha = image->HasAlpha();
unsigned int bytesPerComponent = 3;
if (m_bHasAlpha)
{
bytesPerComponent = 4;
}
m_nHeight = (unsigned int)image->GetHeight();
m_nWidth = (unsigned int)image->GetWidth();
m_nBitsPerComponent = (unsigned int)image->GetBitDepth()/bytesPerComponent;
tImageSource imageSource;
imageSource.data = (unsigned char*)pData;
imageSource.size = nDatalen;
imageSource.offset = 0;
m_pData = new unsigned char[m_nHeight * m_nWidth * bytesPerComponent];
unsigned int bytesPerRow = m_nWidth * bytesPerComponent;
if(m_bHasAlpha)
{
unsigned char *src = NULL;
src = (unsigned char *)image->GetTexels();
unsigned char *tmp = (unsigned char *) m_pData;
for(unsigned int i = 0; i < m_nHeight*bytesPerRow; i += bytesPerComponent)
{
*(tmp + i + 0) = (*(src + i + 0) * *(src + i + 3) + 1) >> 8;
*(tmp + i + 1) = (*(src + i + 1) * *(src + i + 3) + 1) >> 8;
*(tmp + i + 2) = (*(src + i + 2) * *(src + i + 3) + 1) >> 8;
*(tmp + i + 3) = *(src + i + 3);
}
}
else
{
for (int j = 0; j < (m_nHeight); ++j)
CIwMaterial* ResourceManager::load(const char* name, int* w, int* h) {
int width = 0, height = 0;
char res[MAX_RES_NAME] = {0};
sprintf(res, "images/%s/%s", desktop.getDevPath(), name);
IIter p = imgs->find(res);
if (p != imgs->end()) {
if (w != NULL) {
*w = p->second.width;
}
if (h != NULL) {
*h = p->second.height;
}
return p->second.mat;
}
CIwTexture* texture = new CIwTexture;
CIwImage image;
s3eFile* pFile = s3eFileOpen(res, "rb");
if (pFile) {
image.ReadFile(pFile);
width = image.GetWidth();
height = image.GetHeight();
s3eFileClose(pFile);
texture->CopyFromImage(&image);
texture->Upload();
} else {
delete texture;
texture = NULL;
}
CIwMaterial* mat = new CIwMaterial;
mat->SetTexture(texture);
SImg s;
s.texture = texture;
s.mat = mat;
s.width = width;
s.height = height;
imgs->insert(IPair(string(res), s));
if (w != NULL) {
*w = width;
}
if (h != NULL) {
*h = height;
}
return mat;
}
