void displayjpeg(jpgData *jpg) {
GSTEXTURE tex;
u8 *data;
int i;
data = malloc(jpg->width * jpg->height * (jpg->bpp/8));
jpgReadImage(jpg, data);
tex.Width = jpg->width;
tex.Height = jpg->height;
tex.PSM = GS_PSM_CT24;
tex.Vram = 0;
tex.Mem = (u32*) data;
gsKit_texture_upload(gsGlobal, &tex);
jpgClose(jpg);
free(data);
for (i=0; i<120; i++) {
gsKit_vsync();
}
}
int CreateThumbnail( const fileInfo_t *pFile, const char *pDir, GSTEXTURE **pTexture )
{
char *pFilename;
u8 *pRaw;
FHANDLE fh;
jpgData *pJpg;
u8 *pImgData;
int nWidth, nHeight;
float fRatio;
u8 *pResData;
int nRet, nSize;
if( pFile->flags & FLAG_DIRECTORY )
{
if( pTexture )
*pTexture = pDirImage->gsTexture;
return 1;
}
if( TbnCacheLoad( pFile, pDir, pTexture ) )
return 1;
pFilename = (char*) malloc( strlen(pDir) + strlen(pFile->name) + 1 );
if( !pFilename )
return 0;
strcpy( pFilename, pDir );
strcat( pFilename, pFile->name );
fh = FileOpen( pFilename, O_RDONLY );
if( fh.fh < 0 )
{
free(pFilename);
return 0;
}
nSize = FileSeek( fh, 0, SEEK_END );
FileSeek( fh, 0, SEEK_SET );
if( !nSize )
{
free(pFilename);
return 0;
}
if( (pRaw = (u8*) malloc( nSize )) == NULL )
return 0;
FileRead( fh, pRaw, nSize );
FileClose( fh );
if( (pJpg = jpgOpenRAW( pRaw, nSize, JPG_WIDTH_FIX )) == NULL )
{
free(pFilename);
free(pRaw);
return 0;
}
if( pJpg->bpp != 24 )
{
jpgClose(pJpg);
free(pFilename);
free(pRaw);
return 0;
}
pImgData = (u8*) malloc( ((3 * pJpg->width + 3) & ~3) * pJpg->height );
if( !pImgData )
{
jpgClose(pJpg);
free(pFilename);
free(pRaw);
return 0;
}
if( -1 == jpgReadImage( pJpg, pImgData ) )
{
jpgClose(pJpg);
free(pFilename);
free(pRaw);
free(pImgData);
return 0;
}
// resize dimensions
if( pJpg->width > pJpg->height )
{
fRatio = (float) pJpg->height / pJpg->width;
nWidth = 64;
nHeight = (int) (nWidth * fRatio);
// make sure Height is even
if( nHeight % 2 )
nHeight++;
}
else
{
fRatio = (float) pJpg->width / pJpg->height;
nHeight = 64;
nWidth = (int) (nHeight * fRatio);
// make sure width is a multiple of 4 so
// ScaleBitmap will always work correctly.
nWidth -= (nWidth % 4);
}
nRet = ScaleBitmap( pImgData, pJpg->width, pJpg->height, &pResData, nWidth, nHeight );
if( 0 == nRet )
{
jpgClose(pJpg);
free(pFilename);
free(pRaw);
free(pImgData);
return 0;
}
TbnCacheSave( pFile, pDir, nWidth, nHeight, pResData );
if( pTexture )
*pTexture = gsLib_texture_raw( nWidth, nHeight, GS_PSM_CT24, pResData, GS_CLUT_NONE,
NULL );
jpgClose(pJpg);
free(pRaw);
free(pImgData);
free( pFilename );
if( pTexture && *pTexture == NULL )
return 0;
return 1;
}
