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)
bool CIwGameImage::Init(void* memory_file, int memory_file_size)
{
CIwGameFile file;
if (file.Open(memory_file, memory_file_size))
{
// Load the image
CIwImage image;
image.ReadFile((s3eFile*)file.getFileHandle());
// if required format is different then convert it
if (FormatSet && image.GetFormat() != Format)
{
CIwImage* new_image = ConvertToFormat(image, Format);
Image2D = Iw2DCreateImage(*new_image);
delete new_image;
}
else
Image2D = Iw2DCreateImage(image);
if (FilterSet)
setFilter(Filter);
if (Image2D == NULL || image.GetFormat() == CIwImage::FORMAT_UNDEFINED)
{
#if defined(_DEBUG)
CIwGameError::LogError("Error: CIwGameImage::Init() - Could not create image!");
#endif // _DEBUG
return false;
}
else
{
Width = Image2D->GetWidth();
Height = Image2D->GetHeight();
#if defined(_DEBUG)
CIwGameError::LogError("Info: CIwGameImage::Init() - Size = ", CIwGameString(memory_file_size).c_str());
CIwGameError::LogError("Info: CIwGameImage::Init() - Width = ", CIwGameString(Width).c_str());
CIwGameError::LogError("Info: CIwGameImage::Init() - Height = ", CIwGameString(Height).c_str());
CIwGameError::LogError("Info: CIwGameImage::Init() - Bit depth = ", CIwGameString(image.GetBitDepth()).c_str());
CIwGameError::LogError("Info: CIwGameImage::Init() - Format = ", CIwGameString(image.GetFormat()).c_str());
#endif // _DEBUG
}
}
// Sanity check
if (Width <= 0 || Height <= 0 || Width > 16384 || Height > 16384)
return false;
State = State_Loaded;
return true;
}
