bool M_saveImage(const char * filename, void * data, unsigned int quality)
{
DevILInit();
ILuint ImgId = 0;
ilGenImages(1, &ImgId);
// bind this image name.
ilBindImage(ImgId);
MImage * image = (MImage *)data;
unsigned int width = image->getWidth();
unsigned int height = image->getHeight();
unsigned int components = image->getComponents();
if(components == 3)
ilTexImage(width, height, 1, 3, IL_RGB, IL_UNSIGNED_BYTE, image->getData());
else if(components == 4)
ilTexImage(width, height, 1, 4, IL_RGBA, IL_UNSIGNED_BYTE, image->getData());
iluFlipImage();
if(quality < 100)
ilSetInteger(IL_JPG_QUALITY, quality);
ilEnable(IL_FILE_OVERWRITE);
ilSaveImage(filename);
ilDeleteImages(1, &ImgId);
DevILShutDown();
return true;
}
void MTextureRef::update(void)
{
M_PROFILE_SCOPE(MTextureRef::update);
MEngine * engine = MEngine::getInstance();
MRenderingContext * render = engine->getRenderingContext();
MImage image;
if(engine->getImageLoader()->loadData(getFilename(), &image))
{
if(m_textureId == 0)
render->createTexture(&m_textureId);
m_components = image.getComponents();
m_width = image.getWidth();
m_height = image.getHeight();
// send texture image
render->bindTexture(m_textureId);
render->sendTextureImage(&image, isMipmapEnabled(), 1, 0);
}
}
bool M_saveImage(const char * filename, void * data)
{
if(! filename)
return false;
if(! data)
return false;
// format
FREE_IMAGE_FORMAT format = FreeImage_GetFIFFromFilename(filename);
if(format == FIF_UNKNOWN)
{
printf("Error freeImage: unknow image format %s\n", filename);
return false;
}
// image
MImage * image = (MImage *)data;
if(! image->getData())
return false;
unsigned int width = image->getWidth();
unsigned int height = image->getHeight();
unsigned int components = image->getComponents();
unsigned int yStep = width*components;
FIBITMAP * dib = NULL;
if(image->getDataType() == M_UBYTE)
{
dib = FreeImage_AllocateT(FIT_BITMAP, width, height, components*8);
if(dib)
{
unsigned char * srcBits = (unsigned char *)image->getData();
for(unsigned int y=0; y<height; y++)
{
BYTE * bits = FreeImage_GetScanLine(dib, y);
memcpy(bits, srcBits, yStep*sizeof(char));
srcBits += yStep;
}
if(components == 3 || components == 4)
SwapRedBlue32(dib);
}
}
else if(image->getDataType() == M_FLOAT)
{
switch(image->getComponents())
{
case 1:
dib = FreeImage_AllocateT(FIT_FLOAT, image->getWidth(), image->getHeight(), 32);
break;
case 3:
dib = FreeImage_AllocateT(FIT_RGBF, image->getWidth(), image->getHeight(), 3*32);
break;
case 4:
dib = FreeImage_AllocateT(FIT_RGBAF, image->getWidth(), image->getHeight(), 4*32);
break;
}
if(dib)
{
float * srcBits = (float *)image->getData();
for(unsigned int y=0; y<height; y++)
{
BYTE * bits = FreeImage_GetScanLine(dib, y);
memcpy(bits, srcBits, yStep*sizeof(float));
srcBits += yStep;
}
}
}
if(dib)
{
// flip
FreeImage_FlipVertical(dib);
// save
if(FreeImage_Save(format, dib, filename, PNG_Z_BEST_SPEED))
{
FreeImage_Unload(dib);
return true;
}
}
return false;
}
