static void *resizeImage( const char *buf, int bufLen, int width, int height, MyData *myData, int *size )
{
char *ptr;
gdImagePtr dest, src;
if ( myData->IMAGE_TYPE == HTTP_IMG_JPEG )
src = gdImageCreateFromJpegPtr( bufLen, (void *)buf );
else if ( myData->IMAGE_TYPE == HTTP_IMG_GIF )
src = gdImageCreateFromGifPtr( bufLen, (void *)buf );
else if ( myData->IMAGE_TYPE == HTTP_IMG_PNG )
src = gdImageCreateFromPngPtr( bufLen, (void *)buf );
else
return NULL;
if ( !width && !height )
return NULL;
else if ( !width )
width = height * src->sx / src->sy;
else if ( !height )
height = width * src->sy / src->sx;
dest = gdImageCreateTrueColor( width, height );
gdImageCopyResampled( dest, src, 0, 0, 0, 0,
width, height,
src->sx, src->sy );
if ( myData->IMAGE_TYPE == HTTP_IMG_JPEG )
ptr = gdImageJpegPtr( dest, size, 50 );
else if ( myData->IMAGE_TYPE == HTTP_IMG_GIF )
ptr = gdImageGifPtr( dest, size );
else if ( myData->IMAGE_TYPE == HTTP_IMG_PNG )
ptr = gdImagePngPtr( dest, size );
return ptr;
}
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;
}
value ImageGifData(value img) {
ImageData _img = getImage(img);
int size;
void *ptr = gdImageGifPtr(imageImage(_img),&size);
buffer ret = alloc_buffer(NULL);
buffer_append_sub(ret,ptr,size);
gdFree(ptr);
return buffer_to_string(ret);
}
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;
}
static void thumb_to_string(void *conf)
{
ngx_image_conf_t *info = conf;
switch(info->dest_type)
{
case NGX_IMAGE_PNG:
info->img_data = gdImagePngPtr(info->dst_im,&info->img_size);
break;
case NGX_IMAGE_GIF:
info->img_data = gdImageGifPtr(info->dst_im,&info->img_size);
break;
case NGX_IMAGE_JPEG:
info->img_data = gdImageJpegPtr(info->dst_im,&info->img_size,info->jpeg_quality);
break;
}
gdImageDestroy(info->dst_im);
}
void plD_eop_gif(PLStream *pls)
{
png_Dev *dev=(png_Dev *)pls->dev;
int im_size=0;
void *im_ptr=NULL;
if (pls->family || pls->page == 1) {
/* image is written to output file by the driver
since if the gd.dll is linked to a different c
lib a crash occurs - this fix works also in Linux */
/* gdImageGif(dev->im_out, pls->OutFile); */
im_ptr = gdImageGifPtr(dev->im_out, &im_size);
if( im_ptr ) {
fwrite(im_ptr, sizeof(char), im_size, pls->OutFile);
gdFree(im_ptr);
}
gdImageDestroy(dev->im_out);
dev->im_out = NULL;
}
}
static u_char *ngx_http_small_light_gd_out(gdImagePtr img, ngx_int_t type, int *size, double q)
{
u_char *out = NULL;
switch (type) {
case NGX_HTTP_SMALL_LIGHT_IMAGE_JPEG:
out = gdImageJpegPtr(img, size, (int)q);
break;
case NGX_HTTP_SMALL_LIGHT_IMAGE_GIF:
out = gdImageGifPtr(img, size);
break;
case NGX_HTTP_SMALL_LIGHT_IMAGE_PNG:
out = gdImagePngPtr(img, size);
break;
case NGX_HTTP_SMALL_LIGHT_IMAGE_WEBP:
#ifdef NGX_HTTP_SMALL_LIGHT_GD_WEBP_ENABLED
out = gdImageWebpPtrEx(img, size, (int)q);
#endif
break;
default:
break;
}
return out;
}
int main()
{
gdImagePtr src, dst;
int r, g, b;
void *p;
int size = 0;
int status = 0;
CuTestImageResult result = {0, 0};
src = gdImageCreate(100, 100);
if (src == NULL) {
printf("could not create src\n");
return 1;
}
r = gdImageColorAllocate(src, 0xFF, 0, 0);
g = gdImageColorAllocate(src, 0, 0xFF, 0);
b = gdImageColorAllocate(src, 0, 0, 0xFF);
gdImageFilledRectangle(src, 0, 0, 99, 99, r);
gdImageRectangle(src, 20, 20, 79, 79, g);
gdImageEllipse(src, 70, 25, 30, 20, b);
#define OUTPUT_GIF(name) do { \
FILE *fp; \
\
fp = fopen("gif_im2im_" #name ".gif", "wb"); \
if (fp) { \
gdImageGif(name, fp); \
fclose(fp); \
} \
} while (0)
OUTPUT_GIF(src);
p = gdImageGifPtr(src, &size);
if (p == NULL) {
status = 1;
printf("p is null\n");
goto door0;
}
if (size <= 0) {
status = 1;
printf("size is non-positive\n");
goto door1;
}
dst = gdImageCreateFromGifPtr(size, p);
if (dst == NULL) {
status = 1;
printf("could not create dst\n");
goto door1;
}
OUTPUT_GIF(dst);
gdTestImageDiff(src, dst, NULL, &result);
if (result.pixels_changed > 0) {
status = 1;
printf("pixels changed: %d\n", result.pixels_changed);
}
gdImageDestroy(dst);
door1:
gdFree(p);
door0:
gdImageDestroy(src);
return status;
}
static int
szm_do_scale_head_photo_internal(gdImagePtr im_in, char **out, int *out_len, int in_len)
{
gdImagePtr im_out;
int x, y, y_offset=0, y_n, new_x, new_y, resize=0;
x = gdImageSX(im_in);
y = gdImageSY(im_in);
if ( x <0 ||y<0 ||x > MAX_PHOTO_SCALE || y > MAX_PHOTO_SCALE){
gdImageDestroy(im_in);
return -SZM_ERR_TOOLARGE;
}
if (x <= HEAD_PHOTO_WEIGHT && y <= HEAD_PHOTO_HEIGHT){
new_x = x;
new_y = y;
if(in_len <= HEAD_PHOTO_SIZE){
gdImageDestroy(im_in);
return -SZM_ERR_NONEED;
}
} else if ( x <= HEAD_PHOTO_WEIGHT){
new_x = x;
new_y = HEAD_PHOTO_HEIGHT;
y_offset = (y - HEAD_PHOTO_HEIGHT) / 2;
} else {
resize = 1;
new_x = HEAD_PHOTO_WEIGHT;
y_n = HEAD_PHOTO_HEIGHT * x / HEAD_PHOTO_WEIGHT;
if(y_n >= y){
y_n = y;
new_y = HEAD_PHOTO_WEIGHT * y / x;
if(!new_y)
new_y=1;
} else {
y_offset = (y - y_n) / 2;
new_y = HEAD_PHOTO_HEIGHT;
}
}
im_out = gdImageCreateTrueColor(new_x, new_y);
if (!im_out) {
gdImageDestroy(im_in);
return -SZM_ERR_IMGPROC;
}
if(resize)
gdImageCopyResampled(im_out, im_in, 0, 0, 0, y_offset,
im_out->sx, im_out->sy, im_in->sx, y_n);
else
gdImageCopy(im_out, im_in, 0, 0, 0, y_offset, im_out->sx, im_out->sy);
*out = gdImageGifPtr(im_out, out_len);
if(*out_len>HEAD_PHOTO_SIZE){
x=1;
y=100;
while(x+1<y){
gdFree(*out);
*out = gdImageJpegPtr(im_out, out_len, (x+y)/2);
if(*out_len>HEAD_PHOTO_SIZE)
y=(x+y)/2;
else
x=(x+y)/2;
}
}
gdImageDestroy(im_in);
gdImageDestroy(im_out);
return 0;
}
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;
}
static void * gdImageGifPtrWrap(gdImagePtr image, int *size, int quality) {
return gdImageGifPtr(image, size);
}
