int ImageWrite( struct ImageLibrary *im, File *rootDev, gdImagePtr img, const char *path )
{
FHandler *fh = rootDev->f_FSys;
File *rfp = (File *)fh->FileOpen( rootDev, path, "wb" );
if( rfp != NULL )
{
char *buffer = NULL;
int length = 0;
int psize = strlen( path );
if( psize > 3 ) //we are checking if file have extension
{
char ext[ 4 ];
strcpy( ext, &(path[ psize-4 ]) );
ext[ 0 ] = toupper( ext[ 0 ] );
ext[ 1 ] = toupper( ext[ 1 ] );
ext[ 2 ] = toupper( ext[ 2 ] );
if( CHECK_EXT( ext, 'P','N','G' ) )
{
buffer = gdImagePngPtr( img, &length );
}else if( CHECK_EXT( ext, 'J','P','G' ) ){
buffer = gdImageJpegPtr( img, &length, 100 );
}else if( CHECK_EXT( ext, 'G','I','F' ) ){
buffer = gdImageGifPtr( img, &length );
}else if( CHECK_EXT( ext, 'W','E','B' ) ){
buffer = gdImageWebpPtr( img, &length );
}else if( CHECK_EXT( ext, 'I','I','F' ) ){
buffer = gdImageTiffPtr( img, &length );
}else if( CHECK_EXT( ext, 'B','M','P' ) ){
buffer = gdImageBmpPtr( img, &length, 100 );
}
if( buffer == NULL )
{
fh->FileClose( rootDev, rfp );
ERROR("Cannot save picture, GD couldnt create buffer from image\n");
return 2;
}
else
{
fh->FileWrite( rfp, buffer, length );
}
}
else
{
ERROR("Extension name is too short, file format not recognized\n");
}
fh->FileClose( rootDev, rfp );
}
else
{
ERROR("Cannot open file: %s to write\n", path );
return 1;
}
return 0;
}
static u_char *
ngx_http_image_out(ngx_http_request_t *r, ngx_uint_t type, gdImagePtr img,
int *size)
{
char *failed;
u_char *out;
ngx_int_t jq;
ngx_http_image_filter_conf_t *conf;
out = NULL;
switch (type) {
case NGX_HTTP_IMAGE_JPEG:
conf = ngx_http_get_module_loc_conf(r, ngx_http_image_filter_module);
jq = ngx_http_image_filter_get_value(r, conf->jqcv, conf->jpeg_quality);
if (jq <= 0) {
return NULL;
}
out = gdImageJpegPtr(img, size, jq);
failed = "gdImageJpegPtr() failed";
break;
case NGX_HTTP_IMAGE_GIF:
out = gdImageGifPtr(img, size);
failed = "gdImageGifPtr() failed";
break;
case NGX_HTTP_IMAGE_PNG:
out = gdImagePngPtr(img, size);
failed = "gdImagePngPtr() failed";
break;
case NGX_HTTP_IMAGE_BMP:
out = gdImageBmpPtr(img, size, -1);
failed = "gdImageBmpPtr() failed";
break;
default:
failed = "unknown image type";
break;
}
if (out == NULL) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, failed);
}
return out;
}
result_t Image::getData(int32_t format, int32_t quality,
obj_ptr<Buffer_base> &retVal, AsyncEvent *ac)
{
if (!m_image)
return CHECK_ERROR(CALL_E_INVALID_CALL);
if (!ac)
return CHECK_ERROR(CALL_E_NOSYNC);
int32_t size = 0;
void *data = NULL;
int32_t sx = gdImageSX(m_image);
int32_t sy = gdImageSY(m_image);
int32_t i, j;
int32_t trans = -1;
if (gdImageTrueColor(m_image))
{
for (i = 0; i < sx && trans == -1; i ++)
for (j = 0; j < sy && trans == -1; j++)
if ((gdImageGetPixel(m_image, i, j) & 0xff000000) != 0)
trans = 0;
}
else
trans = gdImageGetTransparent(m_image);
gdImagePtr nowImage = m_image;
if (trans != -1)
{
if (format != gd_base::_PNG)
{
if (gdImageTrueColor(m_image))
nowImage = gdImageCreateTrueColor(sx, sy);
else
{
nowImage = gdImageCreate(sx, sy);
gdImagePaletteCopy(nowImage, m_image);
}
gdImageFilledRectangle(nowImage, 0, 0, sx, sy, gdImageColorAllocate(nowImage, 255, 255, 255));
gdImageCopy(nowImage, m_image, 0, 0, 0, 0, sx, sy);
}
else if (gdImageTrueColor(m_image))
gdImageSaveAlpha(m_image, 1);
}
switch (format)
{
case gd_base::_GIF:
data = gdImageGifPtr(nowImage, &size);
break;
case gd_base::_PNG:
data = gdImagePngPtr(nowImage, &size);
break;
case gd_base::_JPEG:
{
unsigned char *ed_data = NULL;
uint32_t ed_size = 0;
data = gdImageJpegPtr(nowImage, &size, quality, ed_data, ed_size);
if (ed_data)
free(ed_data);
break;
}
case gd_base::_TIFF:
data = gdImageTiffPtr(nowImage, &size);
break;
case gd_base::_BMP:
data = gdImageBmpPtr(nowImage, &size, 1);
break;
case gd_base::_WEBP:
data = gdImageWebpPtrEx(nowImage, &size, quality);
break;
}
if (nowImage != m_image)
gdImageDestroy(nowImage);
if (data == NULL)
return CHECK_ERROR(CALL_E_INVALIDARG);
retVal = new Buffer(std::string((char *) data, size));
gdFree(data);
return 0;
}
