/**
* What kind of indian processor are we running on. (TODO: This method should probably be placed another central class,
* and should be runned one time at startup and the result written to a class variable with a getter to it).
*/
bool FreeImageHelper::isLittleIndian() {
return FreeImage_IsLittleEndian() != 0;
}
//!!!be sure to release memory before return null
ResHandler* WIPResourceManager::alloc(const char* filename, WIPResourceType type)
{
ResHandler* res = new ResHandler;
switch (type)
{
case TEXT:
{
}
break;
case TEXTURE:
{
TextureData *data = new TextureData;
//初始化FreeImage
FreeImage_Initialise(TRUE);
FIBITMAP* bmpConverted = NULL;
FREE_IMAGE_FORMAT fif = FIF_UNKNOWN;
fif = FreeImage_GetFileType(filename);
if (fif == FIF_UNKNOWN)
fif = FreeImage_GetFIFFromFilename(filename);
if ((fif != FIF_UNKNOWN) && FreeImage_FIFSupportsReading(fif))
{
FIBITMAP *dib = FreeImage_Load(fif, filename);
if (!dib)
{
printf("[fatal error]: \"%s\" load error!\n", filename);
delete data;
delete_handler(res);
return NULL;
}
// we are top left, FIBITMAP is bottom left
FreeImage_FlipVertical(dib);
//get infomation
FREE_IMAGE_TYPE imgType = FreeImage_GetImageType(dib);
FREE_IMAGE_COLOR_TYPE colorType = FreeImage_GetColorType(dib);
unsigned int bpp = FreeImage_GetBPP(dib);
data->bpp = bpp;
data->color_type = colorType;
data->image_type = imgType;
data->channel = 4;
int x, y;
RGBQUAD m_rgb;
//获取图片长宽
int width = (int)FreeImage_GetWidth(dib);
int height = (int)FreeImage_GetHeight(dib);
unsigned char* imgBuf = new unsigned char[width*height * 4];
bool is_tr = FreeImage_IsTransparent(dib);
bool is_little = FreeImage_IsLittleEndian();
//获取图片数据
//按RGBA格式保存到数组中
for (y = 0; y<height; y++)
{
for (x = 0; x<width; x++)
{
//获取像素值
FreeImage_GetPixelColor(dib, x, y, &m_rgb);
if (is_little)
{
imgBuf[y*width * 4 + x * 4 + 0] = m_rgb.rgbRed;
imgBuf[y*width * 4 + x * 4 + 1] = m_rgb.rgbGreen;
imgBuf[y*width * 4 + x * 4 + 2] = m_rgb.rgbBlue;
//判断是否透明图片
//如果是就取alpha值保存
if (is_tr)
imgBuf[y*width * 4 + x * 4 + 3] = m_rgb.rgbReserved;
else
imgBuf[y*width * 4 + x * 4 + 3] = 255;
}
else
{
//大端警告!
//Big Endian Warnning!
printf("Note:This is a Big endian!\n");
}
}
}
data->width = width;
data->height = height;
data->size = height*width * 4;
FreeImage_Unload(dib);
res->file_name = filename;
res->extra = data;
res->nref = 1;
res->ptr = imgBuf;
res->size = width*height * 4;
res->type = TEXTURE;
_map[filename] = res;
return res;
}
}
break;
case SOUND:
{
}
default:
return res;
break;
}
delete_handler(res);
return NULL;
}
