|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% W W EEEEE BBBB PPPP %
|
|
|
% W W E B B P P %
|
|
|
% W W W EEE BBBB PPPP %
|
|
|
% WW WW E B B P %
|
|
|
% W W EEEEE BBBB P %
|
|
|
% %
|
|
|
% %
|
|
|
% Read/Write WebP Image Format %
|
|
|
% %
|
|
|
% Software Design %
|
|
|
% Cristy %
|
|
|
% March 2011 %
|
|
|
% %
|
|
|
% %
|
|
|
% Copyright 1999-2021 ImageMagick Studio LLC, a non-profit organization %
|
|
|
% dedicated to making software imaging solutions freely available. %
|
|
|
% %
|
|
|
% You may not use this file except in compliance with the License. You may %
|
|
|
% obtain a copy of the License at %
|
|
|
% %
|
|
|
% https://imagemagick.org/script/license.php %
|
|
|
% %
|
|
|
% Unless required by applicable law or agreed to in writing, software %
|
|
|
% distributed under the License is distributed on an "AS IS" BASIS, %
|
|
|
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
|
|
|
% See the License for the specific language governing permissions and %
|
|
|
% limitations under the License. %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
%
|
|
|
*/
|
|
|
|
|
|
/*
|
|
|
Include declarations.
|
|
|
*/
|
|
|
#include "MagickCore/studio.h"
|
|
|
#include "MagickCore/artifact.h"
|
|
|
#include "MagickCore/blob.h"
|
|
|
#include "MagickCore/blob-private.h"
|
|
|
#include "MagickCore/client.h"
|
|
|
#include "MagickCore/colorspace-private.h"
|
|
|
#include "MagickCore/display.h"
|
|
|
#include "MagickCore/exception.h"
|
|
|
#include "MagickCore/exception-private.h"
|
|
|
#include "MagickCore/image.h"
|
|
|
#include "MagickCore/image-private.h"
|
|
|
#include "MagickCore/layer.h"
|
|
|
#include "MagickCore/list.h"
|
|
|
#include "MagickCore/magick.h"
|
|
|
#include "MagickCore/monitor.h"
|
|
|
#include "MagickCore/monitor-private.h"
|
|
|
#include "MagickCore/memory_.h"
|
|
|
#include "MagickCore/option.h"
|
|
|
#include "MagickCore/pixel-accessor.h"
|
|
|
#include "MagickCore/profile.h"
|
|
|
#include "MagickCore/property.h"
|
|
|
#include "MagickCore/quantum-private.h"
|
|
|
#include "MagickCore/static.h"
|
|
|
#include "MagickCore/string_.h"
|
|
|
#include "MagickCore/string-private.h"
|
|
|
#include "MagickCore/module.h"
|
|
|
#include "MagickCore/utility.h"
|
|
|
#include "MagickCore/xwindow.h"
|
|
|
#include "MagickCore/xwindow-private.h"
|
|
|
#if defined(MAGICKCORE_WEBP_DELEGATE)
|
|
|
#include <webp/decode.h>
|
|
|
#include <webp/encode.h>
|
|
|
#if defined(MAGICKCORE_WEBPMUX_DELEGATE)
|
|
|
#include <webp/mux.h>
|
|
|
#include <webp/demux.h>
|
|
|
#endif
|
|
|
#endif
|
|
|
|
|
|
/*
|
|
|
Forward declarations.
|
|
|
*/
|
|
|
#if defined(MAGICKCORE_WEBP_DELEGATE)
|
|
|
static MagickBooleanType
|
|
|
WriteWEBPImage(const ImageInfo *,Image *,ExceptionInfo *);
|
|
|
#endif
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% I s W E B P %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% IsWEBP() returns MagickTrue if the image format type, identified by the
|
|
|
% magick string, is WebP.
|
|
|
%
|
|
|
% The format of the IsWEBP method is:
|
|
|
%
|
|
|
% MagickBooleanType IsWEBP(const unsigned char *magick,const size_t length)
|
|
|
%
|
|
|
% A description of each parameter follows:
|
|
|
%
|
|
|
% o magick: compare image format pattern against these bytes.
|
|
|
%
|
|
|
% o length: Specifies the length of the magick string.
|
|
|
%
|
|
|
*/
|
|
|
static MagickBooleanType IsWEBP(const unsigned char *magick,const size_t length)
|
|
|
{
|
|
|
if (length < 12)
|
|
|
return(MagickFalse);
|
|
|
if (LocaleNCompare((const char *) magick+8,"WEBP",4) == 0)
|
|
|
return(MagickTrue);
|
|
|
return(MagickFalse);
|
|
|
}
|
|
|
|
|
|
#if defined(MAGICKCORE_WEBP_DELEGATE)
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% R e a d W E B P I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% ReadWEBPImage() reads an image in the WebP image format.
|
|
|
%
|
|
|
% The format of the ReadWEBPImage method is:
|
|
|
%
|
|
|
% Image *ReadWEBPImage(const ImageInfo *image_info,
|
|
|
% ExceptionInfo *exception)
|
|
|
%
|
|
|
% A description of each parameter follows:
|
|
|
%
|
|
|
% o image_info: the image info.
|
|
|
%
|
|
|
% o exception: return any errors or warnings in this structure.
|
|
|
%
|
|
|
*/
|
|
|
|
|
|
static inline uint32_t ReadWebPLSBWord(
|
|
|
const unsigned char *magick_restrict data)
|
|
|
{
|
|
|
const unsigned char
|
|
|
*p;
|
|
|
|
|
|
uint32_t
|
|
|
value;
|
|
|
|
|
|
p=data;
|
|
|
value=(uint32_t) (*p++);
|
|
|
value|=((uint32_t) (*p++)) << 8;
|
|
|
value|=((uint32_t) (*p++)) << 16;
|
|
|
value|=((uint32_t) (*p++)) << 24;
|
|
|
return(value);
|
|
|
}
|
|
|
|
|
|
static MagickBooleanType IsWEBPImageLossless(const unsigned char *stream,
|
|
|
const size_t length)
|
|
|
{
|
|
|
#define VP8_CHUNK_INDEX 15
|
|
|
#define LOSSLESS_FLAG 'L'
|
|
|
#define EXTENDED_HEADER 'X'
|
|
|
#define VP8_CHUNK_HEADER "VP8"
|
|
|
#define VP8_CHUNK_HEADER_SIZE 3
|
|
|
#define RIFF_HEADER_SIZE 12
|
|
|
#define VP8X_CHUNK_SIZE 10
|
|
|
#define TAG_SIZE 4
|
|
|
#define CHUNK_SIZE_BYTES 4
|
|
|
#define CHUNK_HEADER_SIZE 8
|
|
|
#define MAX_CHUNK_PAYLOAD (~0U-CHUNK_HEADER_SIZE-1)
|
|
|
|
|
|
size_t
|
|
|
offset;
|
|
|
|
|
|
/*
|
|
|
Read simple header.
|
|
|
*/
|
|
|
if (length <= VP8_CHUNK_INDEX)
|
|
|
return(MagickFalse);
|
|
|
if (stream[VP8_CHUNK_INDEX] != EXTENDED_HEADER)
|
|
|
return(stream[VP8_CHUNK_INDEX] == LOSSLESS_FLAG ? MagickTrue : MagickFalse);
|
|
|
/*
|
|
|
Read extended header.
|
|
|
*/
|
|
|
offset=RIFF_HEADER_SIZE+TAG_SIZE+CHUNK_SIZE_BYTES+VP8X_CHUNK_SIZE;
|
|
|
while (offset <= (length-TAG_SIZE-TAG_SIZE-4))
|
|
|
{
|
|
|
uint32_t
|
|
|
chunk_size,
|
|
|
chunk_size_pad;
|
|
|
|
|
|
chunk_size=ReadWebPLSBWord(stream+offset+TAG_SIZE);
|
|
|
if (chunk_size > MAX_CHUNK_PAYLOAD)
|
|
|
break;
|
|
|
chunk_size_pad=(CHUNK_HEADER_SIZE+chunk_size+1) & ~1;
|
|
|
if (memcmp(stream+offset,VP8_CHUNK_HEADER,VP8_CHUNK_HEADER_SIZE) == 0)
|
|
|
return(*(stream+offset+VP8_CHUNK_HEADER_SIZE) == LOSSLESS_FLAG ?
|
|
|
MagickTrue : MagickFalse);
|
|
|
offset+=chunk_size_pad;
|
|
|
}
|
|
|
return(MagickFalse);
|
|
|
}
|
|
|
|
|
|
static int FillBasicWEBPInfo(Image *image,const uint8_t *stream,size_t length,
|
|
|
WebPDecoderConfig *configure)
|
|
|
{
|
|
|
WebPBitstreamFeatures
|
|
|
*magick_restrict features = &configure->input;
|
|
|
|
|
|
int
|
|
|
webp_status;
|
|
|
|
|
|
webp_status=WebPGetFeatures(stream,length,features);
|
|
|
|
|
|
if (webp_status != VP8_STATUS_OK)
|
|
|
return(webp_status);
|
|
|
|
|
|
image->columns=(size_t) features->width;
|
|
|
image->rows=(size_t) features->height;
|
|
|
image->depth=8;
|
|
|
image->alpha_trait=features->has_alpha != 0 ? BlendPixelTrait :
|
|
|
UndefinedPixelTrait;
|
|
|
|
|
|
return(webp_status);
|
|
|
}
|
|
|
|
|
|
static int ReadSingleWEBPImage(Image *image,const uint8_t *stream,
|
|
|
size_t length,WebPDecoderConfig *configure,ExceptionInfo *exception,
|
|
|
MagickBooleanType is_first)
|
|
|
{
|
|
|
int
|
|
|
webp_status;
|
|
|
|
|
|
unsigned char
|
|
|
*p;
|
|
|
|
|
|
size_t
|
|
|
canvas_width,
|
|
|
canvas_height,
|
|
|
image_width,
|
|
|
image_height;
|
|
|
|
|
|
ssize_t
|
|
|
x_offset,
|
|
|
y_offset,
|
|
|
y;
|
|
|
|
|
|
WebPDecBuffer
|
|
|
*magick_restrict webp_image;
|
|
|
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
webp_image=&configure->output;
|
|
|
if (is_first)
|
|
|
{
|
|
|
canvas_width=image->columns;
|
|
|
canvas_height=image->rows;
|
|
|
x_offset=image->page.x;
|
|
|
y_offset=image->page.y;
|
|
|
image->page.x=0;
|
|
|
image->page.y=0;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
canvas_width=0;
|
|
|
canvas_height=0;
|
|
|
x_offset=0;
|
|
|
y_offset=0;
|
|
|
}
|
|
|
webp_status=FillBasicWEBPInfo(image,stream,length,configure);
|
|
|
image_width=image->columns;
|
|
|
image_height=image->rows;
|
|
|
if (is_first)
|
|
|
{
|
|
|
image->columns=canvas_width;
|
|
|
image->rows=canvas_height;
|
|
|
}
|
|
|
|
|
|
if (webp_status != VP8_STATUS_OK)
|
|
|
return(webp_status);
|
|
|
|
|
|
if (IsWEBPImageLossless(stream,length) != MagickFalse)
|
|
|
image->quality=100;
|
|
|
|
|
|
webp_status=WebPDecode(stream,length,configure);
|
|
|
if (webp_status != VP8_STATUS_OK)
|
|
|
return(webp_status);
|
|
|
|
|
|
p=(unsigned char *) webp_image->u.RGBA.rgba;
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
Quantum
|
|
|
*q;
|
|
|
|
|
|
ssize_t
|
|
|
x;
|
|
|
|
|
|
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
|
|
if (q == (Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
|
{
|
|
|
if ((x >= x_offset && x < (ssize_t) (x_offset+image_width)) &&
|
|
|
(y >= y_offset && y < (ssize_t) (y_offset+image_height)))
|
|
|
{
|
|
|
SetPixelRed(image,ScaleCharToQuantum(*p++),q);
|
|
|
SetPixelGreen(image,ScaleCharToQuantum(*p++),q);
|
|
|
SetPixelBlue(image,ScaleCharToQuantum(*p++),q);
|
|
|
SetPixelAlpha(image,ScaleCharToQuantum(*p++),q);
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
SetPixelRed(image,0,q);
|
|
|
SetPixelGreen(image,0,q);
|
|
|
SetPixelBlue(image,0,q);
|
|
|
SetPixelAlpha(image,0,q);
|
|
|
}
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
WebPFreeDecBuffer(webp_image);
|
|
|
#if defined(MAGICKCORE_WEBPMUX_DELEGATE)
|
|
|
{
|
|
|
StringInfo
|
|
|
*profile;
|
|
|
|
|
|
uint32_t
|
|
|
webp_flags = 0;
|
|
|
|
|
|
WebPData
|
|
|
chunk,
|
|
|
content;
|
|
|
|
|
|
WebPMux
|
|
|
*mux;
|
|
|
|
|
|
/*
|
|
|
Extract any profiles:
|
|
|
https://developers.google.com/speed/webp/docs/container-api.
|
|
|
*/
|
|
|
content.bytes=stream;
|
|
|
content.size=length;
|
|
|
mux=WebPMuxCreate(&content,0);
|
|
|
(void) memset(&chunk,0,sizeof(chunk));
|
|
|
WebPMuxGetFeatures(mux,&webp_flags);
|
|
|
if (webp_flags & ICCP_FLAG)
|
|
|
{
|
|
|
WebPMuxGetChunk(mux,"ICCP",&chunk);
|
|
|
profile=BlobToStringInfo(chunk.bytes,chunk.size);
|
|
|
if (profile != (StringInfo *) NULL)
|
|
|
{
|
|
|
SetImageProfile(image,"ICC",profile,exception);
|
|
|
profile=DestroyStringInfo(profile);
|
|
|
}
|
|
|
}
|
|
|
if (webp_flags & EXIF_FLAG)
|
|
|
{
|
|
|
WebPMuxGetChunk(mux,"EXIF",&chunk);
|
|
|
profile=BlobToStringInfo(chunk.bytes,chunk.size);
|
|
|
if (profile != (StringInfo *) NULL)
|
|
|
{
|
|
|
SetImageProfile(image,"EXIF",profile,exception);
|
|
|
profile=DestroyStringInfo(profile);
|
|
|
}
|
|
|
}
|
|
|
if (webp_flags & XMP_FLAG)
|
|
|
{
|
|
|
WebPMuxGetChunk(mux,"XMP",&chunk);
|
|
|
profile=BlobToStringInfo(chunk.bytes,chunk.size);
|
|
|
if (profile != (StringInfo *) NULL)
|
|
|
{
|
|
|
SetImageProfile(image,"XMP",profile,exception);
|
|
|
profile=DestroyStringInfo(profile);
|
|
|
}
|
|
|
}
|
|
|
WebPMuxDelete(mux);
|
|
|
}
|
|
|
#endif
|
|
|
return(webp_status);
|
|
|
}
|
|
|
|
|
|
#if defined(MAGICKCORE_WEBPMUX_DELEGATE)
|
|
|
static int ReadAnimatedWEBPImage(const ImageInfo *image_info,Image *image,
|
|
|
uint8_t *stream,size_t length,WebPDecoderConfig *configure,
|
|
|
ExceptionInfo *exception)
|
|
|
{
|
|
|
Image
|
|
|
*original_image;
|
|
|
|
|
|
int
|
|
|
image_count,
|
|
|
webp_status;
|
|
|
|
|
|
size_t
|
|
|
canvas_width,
|
|
|
canvas_height;
|
|
|
|
|
|
WebPData
|
|
|
data;
|
|
|
|
|
|
WebPDemuxer
|
|
|
*demux;
|
|
|
|
|
|
WebPIterator
|
|
|
iter;
|
|
|
|
|
|
image_count=0;
|
|
|
webp_status=0;
|
|
|
original_image=image;
|
|
|
webp_status=FillBasicWEBPInfo(image,stream,length,configure);
|
|
|
canvas_width=image->columns;
|
|
|
canvas_height=image->rows;
|
|
|
data.bytes=stream;
|
|
|
data.size=length;
|
|
|
{
|
|
|
WebPMux
|
|
|
*mux;
|
|
|
|
|
|
WebPMuxAnimParams
|
|
|
params;
|
|
|
|
|
|
WebPMuxError
|
|
|
status;
|
|
|
|
|
|
mux=WebPMuxCreate(&data,0);
|
|
|
status=WebPMuxGetAnimationParams(mux,¶ms);
|
|
|
if (status >= 0)
|
|
|
image->iterations=params.loop_count;
|
|
|
WebPMuxDelete(mux);
|
|
|
}
|
|
|
demux=WebPDemux(&data);
|
|
|
if (WebPDemuxGetFrame(demux,1,&iter))
|
|
|
{
|
|
|
do
|
|
|
{
|
|
|
if (image_count != 0)
|
|
|
{
|
|
|
AcquireNextImage(image_info,image,exception);
|
|
|
if (GetNextImageInList(image) == (Image *) NULL)
|
|
|
break;
|
|
|
image=SyncNextImageInList(image);
|
|
|
CloneImageProperties(image,original_image);
|
|
|
image->page.x=iter.x_offset;
|
|
|
image->page.y=iter.y_offset;
|
|
|
webp_status=ReadSingleWEBPImage(image,iter.fragment.bytes,
|
|
|
iter.fragment.size,configure,exception,MagickFalse);
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
image->page.x=iter.x_offset;
|
|
|
image->page.y=iter.y_offset;
|
|
|
webp_status=ReadSingleWEBPImage(image,iter.fragment.bytes,
|
|
|
iter.fragment.size,configure,exception,MagickTrue);
|
|
|
}
|
|
|
if (webp_status != VP8_STATUS_OK)
|
|
|
break;
|
|
|
image->page.width=canvas_width;
|
|
|
image->page.height=canvas_height;
|
|
|
image->ticks_per_second=100;
|
|
|
image->delay=iter.duration/10;
|
|
|
image->dispose=NoneDispose;
|
|
|
if (iter.dispose_method == WEBP_MUX_DISPOSE_BACKGROUND)
|
|
|
image->dispose=BackgroundDispose;
|
|
|
(void) SetImageProperty(image,"webp:mux-blend",
|
|
|
"AtopPreviousAlphaBlend",exception);
|
|
|
if (iter.blend_method == WEBP_MUX_BLEND)
|
|
|
(void) SetImageProperty(image,"webp:mux-blend",
|
|
|
"AtopBackgroundAlphaBlend",exception);
|
|
|
image_count++;
|
|
|
} while (WebPDemuxNextFrame(&iter));
|
|
|
WebPDemuxReleaseIterator(&iter);
|
|
|
}
|
|
|
WebPDemuxDelete(demux);
|
|
|
return(webp_status);
|
|
|
}
|
|
|
#endif
|
|
|
|
|
|
static Image *ReadWEBPImage(const ImageInfo *image_info,
|
|
|
ExceptionInfo *exception)
|
|
|
{
|
|
|
#define ThrowWEBPException(severity,tag) \
|
|
|
{ \
|
|
|
if (stream != (unsigned char *) NULL) \
|
|
|
stream=(unsigned char*) RelinquishMagickMemory(stream); \
|
|
|
if (webp_image != (WebPDecBuffer *) NULL) \
|
|
|
WebPFreeDecBuffer(webp_image); \
|
|
|
ThrowReaderException(severity,tag); \
|
|
|
}
|
|
|
|
|
|
Image
|
|
|
*image;
|
|
|
|
|
|
int
|
|
|
webp_status;
|
|
|
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
size_t
|
|
|
length;
|
|
|
|
|
|
ssize_t
|
|
|
count;
|
|
|
|
|
|
unsigned char
|
|
|
header[12],
|
|
|
*stream;
|
|
|
|
|
|
WebPDecoderConfig
|
|
|
configure;
|
|
|
|
|
|
WebPDecBuffer
|
|
|
*magick_restrict webp_image = &configure.output;
|
|
|
|
|
|
/*
|
|
|
Open image file.
|
|
|
*/
|
|
|
assert(image_info != (const ImageInfo *) NULL);
|
|
|
assert(image_info->signature == MagickCoreSignature);
|
|
|
if (image_info->debug != MagickFalse)
|
|
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
|
|
|
image_info->filename);
|
|
|
assert(exception != (ExceptionInfo *) NULL);
|
|
|
assert(exception->signature == MagickCoreSignature);
|
|
|
image=AcquireImage(image_info,exception);
|
|
|
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
{
|
|
|
image=DestroyImageList(image);
|
|
|
return((Image *) NULL);
|
|
|
}
|
|
|
stream=(unsigned char *) NULL;
|
|
|
if (WebPInitDecoderConfig(&configure) == 0)
|
|
|
ThrowReaderException(ResourceLimitError,"UnableToDecodeImageFile");
|
|
|
webp_image->colorspace=MODE_RGBA;
|
|
|
count=ReadBlob(image,12,header);
|
|
|
if (count != 12)
|
|
|
ThrowWEBPException(CorruptImageError,"InsufficientImageDataInFile");
|
|
|
status=IsWEBP(header,count);
|
|
|
if (status == MagickFalse)
|
|
|
ThrowWEBPException(CorruptImageError,"CorruptImage");
|
|
|
length=(size_t) (ReadWebPLSBWord(header+4)+8);
|
|
|
if (length < 12)
|
|
|
ThrowWEBPException(CorruptImageError,"CorruptImage");
|
|
|
if (length > GetBlobSize(image))
|
|
|
ThrowWEBPException(CorruptImageError,"InsufficientImageDataInFile");
|
|
|
stream=(unsigned char *) AcquireQuantumMemory(length,sizeof(*stream));
|
|
|
if (stream == (unsigned char *) NULL)
|
|
|
ThrowWEBPException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
(void) memcpy(stream,header,12);
|
|
|
count=ReadBlob(image,length-12,stream+12);
|
|
|
if (count != (ssize_t) (length-12))
|
|
|
ThrowWEBPException(CorruptImageError,"InsufficientImageDataInFile");
|
|
|
|
|
|
webp_status=FillBasicWEBPInfo(image,stream,length,&configure);
|
|
|
if (webp_status == VP8_STATUS_OK) {
|
|
|
if (configure.input.has_animation) {
|
|
|
#if defined(MAGICKCORE_WEBPMUX_DELEGATE)
|
|
|
webp_status=ReadAnimatedWEBPImage(image_info,image,stream,length,
|
|
|
&configure,exception);
|
|
|
#else
|
|
|
webp_status=VP8_STATUS_UNSUPPORTED_FEATURE;
|
|
|
#endif
|
|
|
} else {
|
|
|
webp_status=ReadSingleWEBPImage(image,stream,length,&configure,exception,MagickFalse);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (webp_status != VP8_STATUS_OK)
|
|
|
switch (webp_status)
|
|
|
{
|
|
|
case VP8_STATUS_OUT_OF_MEMORY:
|
|
|
{
|
|
|
ThrowWEBPException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
break;
|
|
|
}
|
|
|
case VP8_STATUS_INVALID_PARAM:
|
|
|
{
|
|
|
ThrowWEBPException(CorruptImageError,"invalid parameter");
|
|
|
break;
|
|
|
}
|
|
|
case VP8_STATUS_BITSTREAM_ERROR:
|
|
|
{
|
|
|
ThrowWEBPException(CorruptImageError,"CorruptImage");
|
|
|
break;
|
|
|
}
|
|
|
case VP8_STATUS_UNSUPPORTED_FEATURE:
|
|
|
{
|
|
|
ThrowWEBPException(CoderError,"DataEncodingSchemeIsNotSupported");
|
|
|
break;
|
|
|
}
|
|
|
case VP8_STATUS_SUSPENDED:
|
|
|
{
|
|
|
ThrowWEBPException(CorruptImageError,"decoder suspended");
|
|
|
break;
|
|
|
}
|
|
|
case VP8_STATUS_USER_ABORT:
|
|
|
{
|
|
|
ThrowWEBPException(CorruptImageError,"user abort");
|
|
|
break;
|
|
|
}
|
|
|
case VP8_STATUS_NOT_ENOUGH_DATA:
|
|
|
{
|
|
|
ThrowWEBPException(CorruptImageError,"InsufficientImageDataInFile");
|
|
|
break;
|
|
|
}
|
|
|
default:
|
|
|
ThrowWEBPException(CorruptImageError,"CorruptImage");
|
|
|
}
|
|
|
|
|
|
stream=(unsigned char*) RelinquishMagickMemory(stream);
|
|
|
(void) CloseBlob(image);
|
|
|
return(image);
|
|
|
}
|
|
|
#endif
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% R e g i s t e r W E B P I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% RegisterWEBPImage() adds attributes for the WebP image format to
|
|
|
% the list of supported formats. The attributes include the image format
|
|
|
% tag, a method to read and/or write the format, whether the format
|
|
|
% supports the saving of more than one frame to the same file or blob,
|
|
|
% whether the format supports native in-memory I/O, and a brief
|
|
|
% description of the format.
|
|
|
%
|
|
|
% The format of the RegisterWEBPImage method is:
|
|
|
%
|
|
|
% size_t RegisterWEBPImage(void)
|
|
|
%
|
|
|
*/
|
|
|
ModuleExport size_t RegisterWEBPImage(void)
|
|
|
{
|
|
|
char
|
|
|
version[MagickPathExtent];
|
|
|
|
|
|
MagickInfo
|
|
|
*entry;
|
|
|
|
|
|
*version='\0';
|
|
|
entry=AcquireMagickInfo("WEBP","WEBP","WebP Image Format");
|
|
|
#if defined(MAGICKCORE_WEBP_DELEGATE)
|
|
|
entry->decoder=(DecodeImageHandler *) ReadWEBPImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteWEBPImage;
|
|
|
(void) FormatLocaleString(version,MagickPathExtent,"libwebp %d.%d.%d [%04X]",
|
|
|
(WebPGetEncoderVersion() >> 16) & 0xff,
|
|
|
(WebPGetEncoderVersion() >> 8) & 0xff,
|
|
|
(WebPGetEncoderVersion() >> 0) & 0xff,WEBP_ENCODER_ABI_VERSION);
|
|
|
#endif
|
|
|
entry->mime_type=ConstantString("image/webp");
|
|
|
entry->flags|=CoderDecoderSeekableStreamFlag;
|
|
|
#if !defined(MAGICKCORE_WEBPMUX_DELEGATE)
|
|
|
entry->flags^=CoderAdjoinFlag;
|
|
|
#endif
|
|
|
entry->magick=(IsImageFormatHandler *) IsWEBP;
|
|
|
if (*version != '\0')
|
|
|
entry->version=ConstantString(version);
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
return(MagickImageCoderSignature);
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% U n r e g i s t e r W E B P I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% UnregisterWEBPImage() removes format registrations made by the WebP module
|
|
|
% from the list of supported formats.
|
|
|
%
|
|
|
% The format of the UnregisterWEBPImage method is:
|
|
|
%
|
|
|
% UnregisterWEBPImage(void)
|
|
|
%
|
|
|
*/
|
|
|
ModuleExport void UnregisterWEBPImage(void)
|
|
|
{
|
|
|
(void) UnregisterMagickInfo("WEBP");
|
|
|
}
|
|
|
#if defined(MAGICKCORE_WEBP_DELEGATE)
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% W r i t e W E B P I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% WriteWEBPImage() writes an image in the WebP image format.
|
|
|
%
|
|
|
% The format of the WriteWEBPImage method is:
|
|
|
%
|
|
|
% MagickBooleanType WriteWEBPImage(const ImageInfo *image_info,
|
|
|
% Image *image)
|
|
|
%
|
|
|
% A description of each parameter follows.
|
|
|
%
|
|
|
% o image_info: the image info.
|
|
|
%
|
|
|
% o image: The image.
|
|
|
%
|
|
|
*/
|
|
|
|
|
|
#if WEBP_ENCODER_ABI_VERSION >= 0x0100
|
|
|
static int WebPEncodeProgress(int percent,const WebPPicture* picture)
|
|
|
{
|
|
|
#define EncodeImageTag "Encode/Image"
|
|
|
|
|
|
Image
|
|
|
*image;
|
|
|
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
image=(Image *) picture->user_data;
|
|
|
status=SetImageProgress(image,EncodeImageTag,percent-1,100);
|
|
|
return(status == MagickFalse ? 0 : 1);
|
|
|
}
|
|
|
#endif
|
|
|
|
|
|
static const char * WebPErrorCodeMessage(WebPEncodingError error_code)
|
|
|
{
|
|
|
switch (error_code)
|
|
|
{
|
|
|
case VP8_ENC_OK:
|
|
|
return NULL;
|
|
|
case VP8_ENC_ERROR_OUT_OF_MEMORY:
|
|
|
return "out of memory";
|
|
|
case VP8_ENC_ERROR_BITSTREAM_OUT_OF_MEMORY:
|
|
|
return "bitstream out of memory";
|
|
|
case VP8_ENC_ERROR_NULL_PARAMETER:
|
|
|
return "NULL parameter";
|
|
|
case VP8_ENC_ERROR_INVALID_CONFIGURATION:
|
|
|
return "invalid configuration";
|
|
|
case VP8_ENC_ERROR_BAD_DIMENSION:
|
|
|
return "bad dimension";
|
|
|
case VP8_ENC_ERROR_PARTITION0_OVERFLOW:
|
|
|
return "partition 0 overflow (> 512K)";
|
|
|
case VP8_ENC_ERROR_PARTITION_OVERFLOW:
|
|
|
return "partition overflow (> 16M)";
|
|
|
case VP8_ENC_ERROR_BAD_WRITE:
|
|
|
return "bad write";
|
|
|
case VP8_ENC_ERROR_FILE_TOO_BIG:
|
|
|
return "file too big (> 4GB)";
|
|
|
#if WEBP_ENCODER_ABI_VERSION >= 0x0100
|
|
|
case VP8_ENC_ERROR_USER_ABORT:
|
|
|
return "user abort";
|
|
|
case VP8_ENC_ERROR_LAST:
|
|
|
return "error last";
|
|
|
#endif
|
|
|
}
|
|
|
return "unknown exception";
|
|
|
}
|
|
|
|
|
|
static MagickBooleanType WriteSingleWEBPPicture(const ImageInfo *image_info,
|
|
|
Image *image,WebPConfig *configure,WebPPicture *picture,ExceptionInfo *exception)
|
|
|
{
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
uint32_t
|
|
|
*magick_restrict q;
|
|
|
|
|
|
ssize_t
|
|
|
y;
|
|
|
|
|
|
MemoryInfo
|
|
|
*pixel_info;
|
|
|
|
|
|
#if WEBP_ENCODER_ABI_VERSION >= 0x0100
|
|
|
picture->progress_hook=WebPEncodeProgress;
|
|
|
picture->user_data=(void *) image;
|
|
|
#endif
|
|
|
picture->width=(int) image->columns;
|
|
|
picture->height=(int) image->rows;
|
|
|
picture->argb_stride=(int) image->columns;
|
|
|
picture->use_argb=1;
|
|
|
|
|
|
/*
|
|
|
Allocate memory for pixels.
|
|
|
*/
|
|
|
(void) TransformImageColorspace(image,sRGBColorspace,exception);
|
|
|
pixel_info=AcquireVirtualMemory(image->columns,image->rows*
|
|
|
sizeof(*(picture->argb)));
|
|
|
|
|
|
if (pixel_info == (MemoryInfo *) NULL)
|
|
|
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
picture->argb=(uint32_t *) GetVirtualMemoryBlob(pixel_info);
|
|
|
/*
|
|
|
Convert image to WebP raster pixels.
|
|
|
*/
|
|
|
status=MagickFalse;
|
|
|
q=picture->argb;
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
const Quantum
|
|
|
*magick_restrict p;
|
|
|
|
|
|
ssize_t
|
|
|
x;
|
|
|
|
|
|
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
|
{
|
|
|
*q++=(uint32_t) (image->alpha_trait != UndefinedPixelTrait ? (uint32_t)
|
|
|
ScaleQuantumToChar(GetPixelAlpha(image,p)) << 24 : 0xff000000) |
|
|
|
((uint32_t) ScaleQuantumToChar(GetPixelRed(image,p)) << 16) |
|
|
|
((uint32_t) ScaleQuantumToChar(GetPixelGreen(image,p)) << 8) |
|
|
|
((uint32_t) ScaleQuantumToChar(GetPixelBlue(image,p)));
|
|
|
p+=GetPixelChannels(image);
|
|
|
}
|
|
|
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
if (status != MagickFalse)
|
|
|
status=(MagickBooleanType) WebPEncode(configure, picture);
|
|
|
|
|
|
RelinquishVirtualMemory(pixel_info);
|
|
|
|
|
|
if (status == MagickFalse)
|
|
|
(void) ThrowMagickException(exception,GetMagickModule(),CorruptImageError,
|
|
|
WebPErrorCodeMessage(picture->error_code),"`%s'",
|
|
|
image->filename);
|
|
|
|
|
|
return(status);
|
|
|
}
|
|
|
|
|
|
static MagickBooleanType WriteSingleWEBPImage(const ImageInfo *image_info,
|
|
|
Image *image,WebPConfig *configure,WebPMemoryWriter *writer,
|
|
|
ExceptionInfo *exception)
|
|
|
{
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
WebPPicture
|
|
|
picture;
|
|
|
|
|
|
if (WebPPictureInit(&picture) == 0)
|
|
|
ThrowWriterException(ResourceLimitError,"UnableToEncodeImageFile");
|
|
|
|
|
|
picture.writer=WebPMemoryWrite;
|
|
|
picture.custom_ptr=writer;
|
|
|
|
|
|
status=WriteSingleWEBPPicture(image_info,image,configure,&picture,exception);
|
|
|
WebPPictureFree(&picture);
|
|
|
|
|
|
return(status);
|
|
|
}
|
|
|
|
|
|
#if defined(MAGICKCORE_WEBPMUX_DELEGATE)
|
|
|
static MagickBooleanType WriteAnimatedWEBPImage(const ImageInfo *image_info,
|
|
|
Image *image,WebPConfig *configure,WebPData *webp_data,
|
|
|
ExceptionInfo *exception)
|
|
|
{
|
|
|
Image
|
|
|
*first_image;
|
|
|
|
|
|
size_t
|
|
|
effective_delta,
|
|
|
frame_timestamp;
|
|
|
|
|
|
WebPAnimEncoder
|
|
|
*enc;
|
|
|
|
|
|
WebPAnimEncoderOptions
|
|
|
enc_options;
|
|
|
|
|
|
WebPPicture
|
|
|
picture;
|
|
|
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
first_image=CoalesceImages(image,exception);
|
|
|
if (first_image == (Image *) NULL)
|
|
|
return(MagickFalse);
|
|
|
image=first_image;
|
|
|
effective_delta=0;
|
|
|
frame_timestamp=0;
|
|
|
|
|
|
(void) WebPAnimEncoderOptionsInit(&enc_options);
|
|
|
if (image_info->verbose)
|
|
|
enc_options.verbose=1;
|
|
|
enc=WebPAnimEncoderNew((int) image->page.width,(int) image->page.height,
|
|
|
&enc_options);
|
|
|
|
|
|
status=MagickTrue;
|
|
|
while (image != NULL)
|
|
|
{
|
|
|
status=(MagickBooleanType) WebPPictureInit(&picture);
|
|
|
if (status == MagickFalse)
|
|
|
{
|
|
|
(void) ThrowMagickException(exception,GetMagickModule(),
|
|
|
ResourceLimitError,"UnableToEncodeImageFile","`%s'",image->filename);
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
status=WriteSingleWEBPPicture(image_info,image,configure,&picture,
|
|
|
exception);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
|
|
|
status=(MagickBooleanType) WebPAnimEncoderAdd(enc,&picture,
|
|
|
(int) frame_timestamp,configure);
|
|
|
WebPPictureFree(&picture);
|
|
|
if (status == MagickFalse)
|
|
|
{
|
|
|
(void) ThrowMagickException(exception,GetMagickModule(),
|
|
|
CoderError,WebPAnimEncoderGetError(enc),"`%s'",image->filename);
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
effective_delta=image->delay*1000*PerceptibleReciprocal(
|
|
|
image->ticks_per_second);
|
|
|
if (effective_delta < 10)
|
|
|
effective_delta=100; /* Consistent with gif2webp */
|
|
|
frame_timestamp+=effective_delta;
|
|
|
|
|
|
image=GetNextImageInList(image);
|
|
|
}
|
|
|
|
|
|
if (status != MagickFalse)
|
|
|
{
|
|
|
// add last null frame and assemble picture.
|
|
|
status=(MagickBooleanType) WebPAnimEncoderAdd(enc,(WebPPicture *) NULL,
|
|
|
(int) frame_timestamp,configure);
|
|
|
if (status != MagickFalse)
|
|
|
status=(MagickBooleanType) WebPAnimEncoderAssemble(enc,webp_data);
|
|
|
|
|
|
if (status == MagickFalse)
|
|
|
(void) ThrowMagickException(exception,GetMagickModule(),
|
|
|
CoderError,WebPAnimEncoderGetError(enc),"`%s'",
|
|
|
first_image->filename);
|
|
|
}
|
|
|
|
|
|
WebPAnimEncoderDelete(enc);
|
|
|
DestroyImageList(first_image);
|
|
|
return(status);
|
|
|
}
|
|
|
|
|
|
static MagickBooleanType WriteWEBPImageProfile(Image *image,
|
|
|
WebPData *webp_data,ExceptionInfo *exception)
|
|
|
{
|
|
|
const StringInfo
|
|
|
*icc_profile,
|
|
|
*exif_profile,
|
|
|
*xmp_profile;
|
|
|
|
|
|
WebPData
|
|
|
chunk;
|
|
|
|
|
|
WebPMux
|
|
|
*mux;
|
|
|
|
|
|
WebPMuxError
|
|
|
mux_error;
|
|
|
|
|
|
WebPMuxAnimParams
|
|
|
new_params;
|
|
|
|
|
|
icc_profile=GetImageProfile(image,"ICC");
|
|
|
exif_profile=GetImageProfile(image,"EXIF");
|
|
|
xmp_profile=GetImageProfile(image,"XMP");
|
|
|
|
|
|
if (icc_profile == (StringInfo *) NULL
|
|
|
&& exif_profile == (StringInfo *) NULL
|
|
|
&& xmp_profile == (StringInfo *) NULL
|
|
|
&& image->iterations == 0)
|
|
|
return(MagickTrue);
|
|
|
|
|
|
mux=WebPMuxCreate(webp_data, 1);
|
|
|
WebPDataClear(webp_data);
|
|
|
|
|
|
if (mux == NULL)
|
|
|
(void) ThrowMagickException(exception,GetMagickModule(),
|
|
|
ResourceLimitError,"UnableToEncodeImageFile","`%s'",image->filename);
|
|
|
|
|
|
// Clean up returned data
|
|
|
memset(webp_data, 0, sizeof(*webp_data));
|
|
|
mux_error=WEBP_MUX_OK;
|
|
|
if (image->iterations > 0)
|
|
|
{
|
|
|
mux_error=WebPMuxGetAnimationParams(mux, &new_params);
|
|
|
/*
|
|
|
If there is only 1 frame webp_data will be created by WriteSingleWEBPImage
|
|
|
and WebPMuxGetAnimationParams will return WEBP_MUX_NOT_FOUND
|
|
|
*/
|
|
|
if (mux_error == WEBP_MUX_NOT_FOUND)
|
|
|
mux_error=WEBP_MUX_OK;
|
|
|
else
|
|
|
if (mux_error == WEBP_MUX_OK)
|
|
|
{
|
|
|
new_params.loop_count=MagickMin((int) image->iterations,65535);
|
|
|
mux_error=WebPMuxSetAnimationParams(mux, &new_params);
|
|
|
}
|
|
|
}
|
|
|
if ((icc_profile != (StringInfo *) NULL) && (mux_error == WEBP_MUX_OK))
|
|
|
{
|
|
|
chunk.bytes=GetStringInfoDatum(icc_profile);
|
|
|
chunk.size=GetStringInfoLength(icc_profile);
|
|
|
mux_error=WebPMuxSetChunk(mux,"ICCP",&chunk,0);
|
|
|
}
|
|
|
if ((exif_profile != (StringInfo *) NULL) && (mux_error == WEBP_MUX_OK))
|
|
|
{
|
|
|
chunk.bytes=GetStringInfoDatum(exif_profile);
|
|
|
chunk.size=GetStringInfoLength(exif_profile);
|
|
|
if ((chunk.size >= 6) &&
|
|
|
(chunk.bytes[0] == 'E') && (chunk.bytes[1] == 'x') &&
|
|
|
(chunk.bytes[2] == 'i') && (chunk.bytes[3] == 'f') &&
|
|
|
(chunk.bytes[4] == '\0') && (chunk.bytes[5] == '\0'))
|
|
|
{
|
|
|
chunk.bytes=GetStringInfoDatum(exif_profile)+6;
|
|
|
chunk.size-=6;
|
|
|
}
|
|
|
mux_error=WebPMuxSetChunk(mux,"EXIF",&chunk,0);
|
|
|
}
|
|
|
if ((xmp_profile != (StringInfo *) NULL) && (mux_error == WEBP_MUX_OK))
|
|
|
{
|
|
|
chunk.bytes=GetStringInfoDatum(xmp_profile);
|
|
|
chunk.size=GetStringInfoLength(xmp_profile);
|
|
|
mux_error=WebPMuxSetChunk(mux,"XMP",&chunk,0);
|
|
|
}
|
|
|
if (mux_error == WEBP_MUX_OK)
|
|
|
mux_error=WebPMuxAssemble(mux,webp_data);
|
|
|
WebPMuxDelete(mux);
|
|
|
|
|
|
if (mux_error != WEBP_MUX_OK)
|
|
|
(void) ThrowMagickException(exception,GetMagickModule(),
|
|
|
ResourceLimitError,"UnableToEncodeImageFile","`%s'",image->filename);
|
|
|
return(MagickTrue);
|
|
|
}
|
|
|
#endif
|
|
|
|
|
|
static inline void SetBooleanOption(const ImageInfo *image_info,
|
|
|
const char *option,int *setting)
|
|
|
{
|
|
|
const char
|
|
|
*value;
|
|
|
|
|
|
value=GetImageOption(image_info,option);
|
|
|
if (value != (char *) NULL)
|
|
|
*setting=(int) ParseCommandOption(MagickBooleanOptions,MagickFalse,value);
|
|
|
}
|
|
|
|
|
|
static inline void SetIntegerOption(const ImageInfo *image_info,
|
|
|
const char *option,int *setting)
|
|
|
{
|
|
|
const char
|
|
|
*value;
|
|
|
|
|
|
value=GetImageOption(image_info,option);
|
|
|
if (value != (const char *) NULL)
|
|
|
*setting=StringToInteger(value);
|
|
|
}
|
|
|
|
|
|
static MagickBooleanType WriteWEBPImage(const ImageInfo *image_info,
|
|
|
Image *image,ExceptionInfo * exception)
|
|
|
{
|
|
|
const char
|
|
|
*value;
|
|
|
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
WebPConfig
|
|
|
configure;
|
|
|
|
|
|
WebPMemoryWriter
|
|
|
writer;
|
|
|
|
|
|
/*
|
|
|
Open output image file.
|
|
|
*/
|
|
|
assert(image_info != (const ImageInfo *) NULL);
|
|
|
assert(image_info->signature == MagickCoreSignature);
|
|
|
assert(image != (Image *) NULL);
|
|
|
assert(image->signature == MagickCoreSignature);
|
|
|
if (image->debug != MagickFalse)
|
|
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
|
|
|
if ((image->columns > 16383UL) || (image->rows > 16383UL))
|
|
|
ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
|
|
|
status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
return(status);
|
|
|
if (WebPConfigInit(&configure) == 0)
|
|
|
ThrowWriterException(ResourceLimitError,"UnableToEncodeImageFile");
|
|
|
if (image->quality != UndefinedCompressionQuality)
|
|
|
configure.quality=(float) image->quality;
|
|
|
if (image->quality >= 100)
|
|
|
configure.lossless=1;
|
|
|
SetBooleanOption(image_info,"webp:lossless",&configure.lossless);
|
|
|
value=GetImageOption(image_info,"webp:image-hint");
|
|
|
if (value != (char *) NULL)
|
|
|
{
|
|
|
if (LocaleCompare(value,"default") == 0)
|
|
|
configure.image_hint=WEBP_HINT_DEFAULT;
|
|
|
if (LocaleCompare(value,"photo") == 0)
|
|
|
configure.image_hint=WEBP_HINT_PHOTO;
|
|
|
if (LocaleCompare(value,"picture") == 0)
|
|
|
configure.image_hint=WEBP_HINT_PICTURE;
|
|
|
#if WEBP_ENCODER_ABI_VERSION >= 0x0200
|
|
|
if (LocaleCompare(value,"graph") == 0)
|
|
|
configure.image_hint=WEBP_HINT_GRAPH;
|
|
|
#endif
|
|
|
}
|
|
|
SetBooleanOption(image_info,"webp:auto-filter",&configure.autofilter);
|
|
|
value=GetImageOption(image_info,"webp:target-psnr");
|
|
|
if (value != (char *) NULL)
|
|
|
configure.target_PSNR=(float) StringToDouble(value,(char **) NULL);
|
|
|
SetIntegerOption(image_info,"webp:alpha-compression",
|
|
|
&configure.alpha_compression);
|
|
|
SetIntegerOption(image_info,"webp:alpha-filtering",
|
|
|
&configure.alpha_filtering);
|
|
|
SetIntegerOption(image_info,"webp:alpha-quality",
|
|
|
&configure.alpha_quality);
|
|
|
SetIntegerOption(image_info,"webp:filter-strength",
|
|
|
&configure.filter_strength);
|
|
|
SetIntegerOption(image_info,"webp:filter-sharpness",
|
|
|
&configure.filter_sharpness);
|
|
|
SetIntegerOption(image_info,"webp:filter-type",&configure.filter_type);
|
|
|
SetIntegerOption(image_info,"webp:method",&configure.method);
|
|
|
SetIntegerOption(image_info,"webp:partitions",&configure.partitions);
|
|
|
SetIntegerOption(image_info,"webp:partition-limit",
|
|
|
&configure.partition_limit);
|
|
|
SetIntegerOption(image_info,"webp:pass",&configure.pass);
|
|
|
SetIntegerOption(image_info,"webp:preprocessing",&configure.preprocessing);
|
|
|
SetIntegerOption(image_info,"webp:segments",&configure.segments);
|
|
|
SetIntegerOption(image_info,"webp:show-compressed",
|
|
|
&configure.show_compressed);
|
|
|
SetIntegerOption(image_info,"webp:sns-strength",&configure.sns_strength);
|
|
|
SetIntegerOption(image_info,"webp:target-size",&configure.target_size);
|
|
|
#if WEBP_ENCODER_ABI_VERSION >= 0x0201
|
|
|
SetBooleanOption(image_info,"webp:emulate-jpeg-size",
|
|
|
&configure.emulate_jpeg_size);
|
|
|
SetBooleanOption(image_info,"webp:low-memory",&configure.low_memory);
|
|
|
SetIntegerOption(image_info,"webp:thread-level",&configure.thread_level);
|
|
|
#endif
|
|
|
#if WEBP_ENCODER_ABI_VERSION >= 0x0209
|
|
|
SetBooleanOption(image_info,"webp:exact",&configure.exact);
|
|
|
#endif
|
|
|
#if WEBP_ENCODER_ABI_VERSION >= 0x020e
|
|
|
SetIntegerOption(image_info,"webp:near-lossless",&configure.near_lossless);
|
|
|
SetBooleanOption(image_info,"webp:use-sharp-yuv",&configure.use_sharp_yuv);
|
|
|
#endif
|
|
|
if (WebPValidateConfig(&configure) == 0)
|
|
|
ThrowWriterException(ResourceLimitError,"UnableToEncodeImageFile");
|
|
|
#if defined(MAGICKCORE_WEBPMUX_DELEGATE)
|
|
|
{
|
|
|
WebPData
|
|
|
webp_data;
|
|
|
|
|
|
memset(&webp_data,0,sizeof(webp_data));
|
|
|
if ((image_info->adjoin != MagickFalse) &&
|
|
|
(GetPreviousImageInList(image) == (Image *) NULL) &&
|
|
|
(GetNextImageInList(image) != (Image *) NULL))
|
|
|
status=WriteAnimatedWEBPImage(image_info,image,&configure,&webp_data,
|
|
|
exception);
|
|
|
else
|
|
|
{
|
|
|
WebPMemoryWriterInit(&writer);
|
|
|
status=WriteSingleWEBPImage(image_info,image,&configure,&writer,
|
|
|
exception);
|
|
|
if (status == MagickFalse)
|
|
|
WebPMemoryWriterClear(&writer);
|
|
|
else
|
|
|
{
|
|
|
webp_data.bytes=writer.mem;
|
|
|
webp_data.size=writer.size;
|
|
|
}
|
|
|
}
|
|
|
if (status != MagickFalse)
|
|
|
status=WriteWEBPImageProfile(image,&webp_data,exception);
|
|
|
if (status != MagickFalse)
|
|
|
(void) WriteBlob(image,webp_data.size,webp_data.bytes);
|
|
|
WebPDataClear(&webp_data);
|
|
|
}
|
|
|
#else
|
|
|
WebPMemoryWriterInit(&writer);
|
|
|
status=WriteSingleWEBPImage(image_info,image,&configure,&writer,
|
|
|
exception);
|
|
|
if (status != MagickFalse)
|
|
|
(void) WriteBlob(image,writer.size,writer.mem);
|
|
|
WebPMemoryWriterClear(&writer);
|
|
|
#endif
|
|
|
(void) CloseBlob(image);
|
|
|
return(status);
|
|
|
}
|
|
|
#endif
|
