本文整理汇总了C++中GetAuthenticPixels函数的典型用法代码示例。如果您正苦于以下问题:C++ GetAuthenticPixels函数的具体用法?C++ GetAuthenticPixels怎么用?C++ GetAuthenticPixels使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了GetAuthenticPixels函数的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: ReadVIPSPixelsNONE
static MagickBooleanType ReadVIPSPixelsNONE(Image *image,
const VIPSBandFormat format,const VIPSType type,const unsigned int channels,
ExceptionInfo *exception)
{
Quantum
pixel;
register IndexPacket
*indexes;
register PixelPacket
*q;
register ssize_t
x;
ssize_t
y;
for (y = 0; y < (ssize_t) image->rows; y++)
{
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
return MagickFalse;
indexes=GetAuthenticIndexQueue(image);
for (x=0; x < (ssize_t) image->columns; x++)
{
pixel=ReadVIPSPixelNONE(image,format,type);
SetPixelRed(q,pixel);
if (channels < 3)
{
SetPixelGreen(q,pixel);
SetPixelBlue(q,pixel);
if (channels == 2)
SetPixelAlpha(q,ReadVIPSPixelNONE(image,format,type));
}
else
{
SetPixelGreen(q,ReadVIPSPixelNONE(image,format,type));
SetPixelBlue(q,ReadVIPSPixelNONE(image,format,type));
if (channels == 4)
{
if (image->colorspace == CMYKColorspace)
SetPixelIndex(indexes+x,ReadVIPSPixelNONE(image,format,type));
else
SetPixelAlpha(q,ReadVIPSPixelNONE(image,format,type));
}
else if (channels == 5)
{
SetPixelIndex(indexes+x,ReadVIPSPixelNONE(image,format,type));
SetPixelAlpha(q,ReadVIPSPixelNONE(image,format,type));
}
}
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
return MagickFalse;
}
return(MagickTrue);
}
开发者ID:JohnHeywardOBrien,项目名称:photogram,代码行数:60,代码来源:vips.c
示例2: PlasmaPixel
static inline void PlasmaPixel(Image *image,RandomInfo *random_info,double x,
double y)
{
ExceptionInfo
*exception;
QuantumAny
range;
register PixelPacket
*q;
exception=(&image->exception);
q=GetAuthenticPixels(image,(ssize_t) ceil(x-0.5),(ssize_t) ceil(y-0.5),1,1,
exception);
if (q == (PixelPacket *) NULL)
return;
range=GetQuantumRange(16UL);
q->red=ScaleAnyToQuantum((size_t) (65535.0*
GetPseudoRandomValue(random_info)+0.5),range);
q->green=ScaleAnyToQuantum((size_t) (65535.0*
GetPseudoRandomValue(random_info)+0.5),range);
q->blue=ScaleAnyToQuantum((size_t) (65535.0*
GetPseudoRandomValue(random_info)+0.5),range);
(void) SyncAuthenticPixels(image,exception);
}
开发者ID:JasonGross,项目名称:characters,代码行数:26,代码来源:plasma.c
示例3: PlasmaPixel
static inline void PlasmaPixel(Image *image,RandomInfo *random_info,double x,
double y,ExceptionInfo *exception)
{
register Quantum
*q;
q=GetAuthenticPixels(image,(ssize_t) ceil(x-0.5),(ssize_t) ceil(y-0.5),1,1,
exception);
if (q == (Quantum *) NULL)
return;
SetPixelRed(image,ScaleShortToQuantum((unsigned short) (65535.0*
GetPseudoRandomValue(random_info)+0.5)),q);
SetPixelGreen(image,ScaleShortToQuantum((unsigned short) (65535.0*
GetPseudoRandomValue(random_info)+0.5)),q);
SetPixelBlue(image,ScaleShortToQuantum((unsigned short) (65535.0*
GetPseudoRandomValue(random_info)+0.5)),q);
(void) SyncAuthenticPixels(image,exception);
}
开发者ID:0xPr0xy,项目名称:ImageMagick,代码行数:18,代码来源:plasma.c
示例4: pixmagick_convert_py_image
TCAX_PyPix pixmagick_convert_py_image(PyObject *self, PyObject *args) {
PyObject *pyArg1;
Image *pImage;
TCAX_Pix pix;
PixelPacket *buf;
int i, index, count;
if (PyTuple_GET_SIZE(args) < 1) {
PyErr_SetString(PyExc_RuntimeError, "pmgToPix error, too less parameters - `(image)'\n");
return NULL;
}
pyArg1 = PyTuple_GET_ITEM(args, 0);
if (!PyLong_Check(pyArg1)) {
PyErr_SetString(PyExc_RuntimeError, "pmgToPix error, the 1st param should be an integer - `img'\n");
return NULL;
}
pImage = (Image *)PyLong_AsUnsignedLong(pyArg1);
if (!IsImageObject(pImage)) {
PyErr_SetString(PyExc_RuntimeError, "pmgToPix error, the parameter specified by `img' is not a valid image\n");
return NULL;
}
pix.initX = 0;
pix.initY = 0;
pix.width = pImage->columns;
pix.height = pImage->rows;
pix.size = pix.height * (pix.width << 2);
pix.buf = (unsigned char *)malloc(pix.size * sizeof(unsigned char));
buf = GetAuthenticPixels(pImage, 0, 0, pImage->columns, pImage->rows, NULL);
count = pImage->columns * pImage->rows;
index = 0;
for (i = 0; i < count; i++) {
pix.buf[index++] = buf[i].red;
pix.buf[index++] = buf[i].green;
pix.buf[index++] = buf[i].blue;
pix.buf[index++] = 255 - buf[i].opacity;
}
return tcaxlib_convert_pix(&pix, 1);
}
开发者ID:Lichtavat,项目名称:TCAX,代码行数:37,代码来源:convertion.c
示例5: ReadTXTImage
//.........这里部分代码省略.........
status;
QuantumAny
range;
register long
i;
register PixelPacket
*q;
ssize_t
count;
unsigned long
depth,
max_value;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
(void) ResetMagickMemory(text,0,sizeof(text));
(void) ReadBlobString(image,text);
if (LocaleNCompare((char *) text,MagickID,strlen(MagickID)) != 0)
return(ReadTEXTImage(image_info,image,text,exception));
*colorspace='\0';
count=(ssize_t) sscanf(text+32,"%lu,%lu,%lu,%s",&image->columns,
&image->rows,&max_value,colorspace);
if (count != 4)
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
for (depth=1; (GetQuantumRange(depth)+1) < max_value; depth++) ;
image->depth=depth;
LocaleLower(colorspace);
i=(long) strlen(colorspace)-1;
image->matte=MagickFalse;
if ((i > 0) && (colorspace[i] == 'a'))
{
colorspace[i]='\0';
image->matte=MagickTrue;
}
type=ParseMagickOption(MagickColorspaceOptions,MagickFalse,colorspace);
if (type < 0)
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
image->colorspace=(ColorspaceType) type;
(void) ResetMagickMemory(&pixel,0,sizeof(pixel));
(void) SetImageBackgroundColor(image);
range=GetQuantumRange(image->depth);
while (ReadBlobString(image,text) != (char *) NULL)
{
if (image->colorspace == CMYKColorspace)
{
if (image->matte != MagickFalse)
count=(ssize_t) sscanf(text,"%ld,%ld: (%lu,%lu,%lu,%lu,%lu",&x,&y,
&pixel.red,&pixel.green,&pixel.blue,&pixel.index,&pixel.opacity);
else
count=(ssize_t) sscanf(text,"%ld,%ld: (%lu,%lu,%lu,%lu",&x,&y,
&pixel.red,&pixel.green,&pixel.blue,&pixel.index);
}
else
if (image->matte != MagickFalse)
count=(ssize_t) sscanf(text,"%ld,%ld: (%lu,%lu,%lu,%lu",&x,&y,
&pixel.red,&pixel.green,&pixel.blue,&pixel.opacity);
else
count=(ssize_t) sscanf(text,"%ld,%ld: (%lu,%lu,%lu",&x,&y,
&pixel.red,&pixel.green,&pixel.blue);
if (count < 5)
continue;
q=GetAuthenticPixels(image,x,y,1,1,exception);
if (q == (PixelPacket *) NULL)
continue;
q->red=ScaleAnyToQuantum(pixel.red,range);
q->green=ScaleAnyToQuantum(pixel.green,range);
q->blue=ScaleAnyToQuantum(pixel.blue,range);
if (image->colorspace == CMYKColorspace)
{
indexes=GetAuthenticIndexQueue(image);
*indexes=ScaleAnyToQuantum(pixel.index,range);
}
if (image->matte != MagickFalse)
q->opacity=(Quantum) (QuantumRange-ScaleAnyToQuantum(pixel.opacity,
range));
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
return(GetFirstImageInList(image));
}
开发者ID:0xPr0xy,项目名称:ImageMagick,代码行数:101,代码来源:txt.c
示例6: ReadTXTImage
//.........这里部分代码省略.........
if (image->matte != MagickFalse)
{
count=(ssize_t) sscanf(text,"%ld,%ld: (%lf%*[%,]%lf%*[%,]",
&x_offset,&y_offset,&red,&opacity);
green=red;
blue=red;
break;
}
count=(ssize_t) sscanf(text,"%ld,%ld: (%lf%*[%,]",&x_offset,
&y_offset,&red);
green=red;
blue=red;
break;
}
case CMYKColorspace:
{
if (image->matte != MagickFalse)
{
count=(ssize_t) sscanf(text,
"%ld,%ld: (%lf%*[%,]%lf%*[%,]%lf%*[%,]%lf%*[%,]%lf%*[%,]",
&x_offset,&y_offset,&red,&green,&blue,&index,&opacity);
break;
}
count=(ssize_t) sscanf(text,
"%ld,%ld: (%lf%*[%,]%lf%*[%,]%lf%*[%,]%lf%*[%,]",&x_offset,
&y_offset,&red,&green,&blue,&index);
break;
}
default:
{
if (image->matte != MagickFalse)
{
count=(ssize_t) sscanf(text,
"%ld,%ld: (%lf%*[%,]%lf%*[%,]%lf%*[%,]%lf%*[%,]",
&x_offset,&y_offset,&red,&green,&blue,&opacity);
break;
}
count=(ssize_t) sscanf(text,
"%ld,%ld: (%lf%*[%,]%lf%*[%,]%lf%*[%,]",&x_offset,&y_offset,
&red,&green,&blue);
break;
}
}
if (strchr(text,'%') != (char *) NULL)
{
red*=0.01*range;
green*=0.01*range;
blue*=0.01*range;
index*=0.01*range;
opacity*=0.01*range;
}
if (image->colorspace == LabColorspace)
{
green+=(range+1)/2.0;
blue+=(range+1)/2.0;
}
pixel.red=ScaleAnyToQuantum((QuantumAny) (red+0.5),range);
pixel.green=ScaleAnyToQuantum((QuantumAny) (green+0.5),range);
pixel.blue=ScaleAnyToQuantum((QuantumAny) (blue+0.5),range);
pixel.index=ScaleAnyToQuantum((QuantumAny) (index+0.5),range);
pixel.opacity=ScaleAnyToQuantum((QuantumAny) (opacity+0.5),range);
q=GetAuthenticPixels(image,x_offset,y_offset,1,1,exception);
if (q == (PixelPacket *) NULL)
continue;
SetPixelRed(q,pixel.red);
SetPixelGreen(q,pixel.green);
SetPixelBlue(q,pixel.blue);
if (image->colorspace == CMYKColorspace)
{
indexes=GetAuthenticIndexQueue(image);
SetPixelIndex(indexes,pixel.index);
}
if (image->matte != MagickFalse)
SetPixelAlpha(q,pixel.opacity);
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
}
(void) ReadBlobString(image,text);
if (LocaleNCompare((char *) text,MagickID,strlen(MagickID)) == 0)
{
/*
Allocate next image structure.
*/
AcquireNextImage(image_info,image);
if (GetNextImageInList(image) == (Image *) NULL)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
image=SyncNextImageInList(image);
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
GetBlobSize(image));
if (status == MagickFalse)
break;
}
} while (LocaleNCompare((char *) text,MagickID,strlen(MagickID)) == 0);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
开发者ID:GalliumOS,项目名称:imagemagick,代码行数:101,代码来源:txt.c
示例7: GetBit
static Image *ReadSTEGANOImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
#define GetBit(alpha,i) MagickMin((((unsigned long) (alpha) >> (unsigned long) \
(i)) & 0x01),16)
#define SetBit(alpha,i,set) (alpha)=(IndexPacket) ((set) != 0 ? \
(unsigned long) (alpha) | (1UL << (unsigned long) (i)) : (unsigned long) \
(alpha) & ~(1UL << (unsigned long) (i)))
Image
*image,
*watermark;
ImageInfo
*read_info;
long
c,
i,
j,
k,
y;
MagickBooleanType
status;
PixelPacket
pixel;
register IndexPacket
*indexes;
register long
x;
register PixelPacket
*q;
unsigned long
depth;
/*
Initialize Image structure.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
if ((image->columns == 0) || (image->rows == 0))
ThrowReaderException(OptionError,"MustSpecifyImageSize");
read_info=CloneImageInfo(image_info);
SetImageInfoBlob(read_info,(void *) NULL,0);
*read_info->magick='\0';
watermark=ReadImage(read_info,exception);
read_info=DestroyImageInfo(read_info);
if (watermark == (Image *) NULL)
return((Image *) NULL);
watermark->depth=MAGICKCORE_QUANTUM_DEPTH;
if (AcquireImageColormap(image,MaxColormapSize) == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
if (image_info->ping != MagickFalse)
{
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
/*
Get hidden watermark from low-order bits of image.
*/
c=0;
i=0;
j=0;
i=MAGICKCORE_QUANTUM_DEPTH-1;
depth=MAGICKCORE_QUANTUM_DEPTH;
for (k=image->offset; (i >= 0) && (j < (long) depth); i--)
{
for (y=0; (y < (long) image->rows) && (j < (long) depth); y++)
{
x=0;
for (; (x < (long) image->columns) && (j < (long) depth); x++)
{
if ((k/(long) watermark->columns) >= (long) watermark->rows)
break;
(void) GetOneVirtualPixel(watermark,k % (long) watermark->columns,
k/(long) watermark->columns,&pixel,exception);
q=GetAuthenticPixels(image,x,y,1,1,exception);
if (q == (PixelPacket *) NULL)
break;
indexes=GetAuthenticIndexQueue(image);
switch (c)
{
case 0:
{
SetBit(*indexes,i,GetBit(pixel.red,j));
break;
}
case 1:
//.........这里部分代码省略.........
开发者ID:0xPr0xy,项目名称:ImageMagick,代码行数:101,代码来源:stegano.c
示例8: load_tile_rle
static MagickBooleanType load_tile_rle(Image *image,Image *tile_image,
XCFDocInfo *inDocInfo,XCFLayerInfo *inLayerInfo,size_t data_length)
{
ExceptionInfo
*exception;
ssize_t
i,
j;
MagickOffsetType
size;
register PixelPacket
*q;
ssize_t
bytes_per_pixel,
count;
size_t
length;
unsigned char
data,
pixel,
*xcfdata,
*xcfodata,
*xcfdatalimit;
bytes_per_pixel=(ssize_t) inDocInfo->bytes_per_pixel;
xcfdata=(unsigned char *) AcquireQuantumMemory(data_length,sizeof(*xcfdata));
if (xcfdata == (unsigned char *) NULL)
ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
image->filename);
xcfodata=xcfdata;
count=ReadBlob(image, (size_t) data_length, xcfdata);
xcfdatalimit = xcfodata+count-1;
exception=(&image->exception);
for (i=0; i < (ssize_t) bytes_per_pixel; i++)
{
q=GetAuthenticPixels(tile_image,0,0,tile_image->columns,tile_image->rows,
exception);
size=(MagickOffsetType) tile_image->rows*tile_image->columns;
while (size > 0)
{
if (xcfdata > xcfdatalimit)
goto bogus_rle;
pixel=(*xcfdata++);
length=(size_t) pixel;
if (length >= 128)
{
length=255-(length-1);
if (length == 128)
{
if (xcfdata >= xcfdatalimit)
goto bogus_rle;
length=(size_t) ((*xcfdata << 8) + xcfdata[1]);
xcfdata+=2;
}
size-=length;
if (size < 0)
goto bogus_rle;
if (&xcfdata[length-1] > xcfdatalimit)
goto bogus_rle;
while (length-- > 0)
{
data=(*xcfdata++);
switch (i)
{
case 0:
{
q->red=ScaleCharToQuantum(data);
if (inDocInfo->image_type == GIMP_GRAY)
{
q->green=ScaleCharToQuantum(data);
q->blue=ScaleCharToQuantum(data);
q->opacity=ScaleCharToQuantum((unsigned char) (255-
inLayerInfo->opacity));
}
else
{
q->green= q->red;
q->blue= q->red;
q->opacity=ScaleCharToQuantum((unsigned char) (255-
inLayerInfo->opacity));
}
break;
}
case 1:
{
q->green=ScaleCharToQuantum(data);
break;
}
case 2:
{
q->blue=ScaleCharToQuantum(data);
break;
}
case 3:
//.........这里部分代码省略.........
开发者ID:fightingillini5,项目名称:cs225-1,代码行数:101,代码来源:xcf.c
示例9: GetBit
static Image *ReadSTEGANOImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
#define GetBit(alpha,i) MagickMin((((size_t) (alpha) >> (size_t) \
(i)) & 0x01),16)
#define SetBit(i,set) SetPixelIndex(image,((set) != 0 ? \
(size_t) GetPixelIndex(image,q) | (one << (size_t) (i)) : \
(size_t) GetPixelIndex(image,q) & ~(one << (size_t) (i))),q)
Image
*image,
*watermark;
ImageInfo
*read_info;
int
c;
MagickBooleanType
status;
PixelInfo
pixel;
register Quantum
*q;
register ssize_t
x;
size_t
depth,
one;
ssize_t
i,
j,
k,
y;
/*
Initialize Image structure.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
one=1;
image=AcquireImage(image_info,exception);
if ((image->columns == 0) || (image->rows == 0))
ThrowReaderException(OptionError,"MustSpecifyImageSize");
read_info=CloneImageInfo(image_info);
SetImageInfoBlob(read_info,(void *) NULL,0);
*read_info->magick='\0';
watermark=ReadImage(read_info,exception);
read_info=DestroyImageInfo(read_info);
if (watermark == (Image *) NULL)
return((Image *) NULL);
watermark->depth=MAGICKCORE_QUANTUM_DEPTH;
if (AcquireImageColormap(image,MaxColormapSize,exception) == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
if (image_info->ping != MagickFalse)
{
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
/*
Get hidden watermark from low-order bits of image.
*/
c=0;
i=0;
j=0;
i=(ssize_t) (watermark->depth-1);
depth=watermark->depth;
for (k=image->offset; (i >= 0) && (j < (ssize_t) depth); i--)
{
for (y=0; (y < (ssize_t) image->rows) && (j < (ssize_t) depth); y++)
{
x=0;
for ( ; (x < (ssize_t) image->columns) && (j < (ssize_t) depth); x++)
{
if ((k/(ssize_t) watermark->columns) >= (ssize_t) watermark->rows)
break;
(void) GetOneVirtualPixelInfo(watermark,UndefinedVirtualPixelMethod,
k % (ssize_t) watermark->columns,k/(ssize_t) watermark->columns,
&pixel,exception);
q=GetAuthenticPixels(image,x,y,1,1,exception);
if (q == (Quantum *) NULL)
break;
switch (c)
{
case 0:
{
SetBit(i,GetBit(pixel.red,j));
break;
}
//.........这里部分代码省略.........
开发者ID:Ladeira,项目名称:ImageMagick,代码行数:101,代码来源:stegano.c
示例10: assert
//.........这里部分代码省略.........
page.x=0;
page.y=0;
if (image_info->page != (char *) NULL)
(void) ParseAbsoluteGeometry(image_info->page,&page);
if (image->columns == 0)
{
pango_layout_get_pixel_extents(layout,NULL,&extent);
image->columns=extent.x+extent.width;
}
else
{
image->columns-=2*page.x;
pango_layout_set_width(layout,(PANGO_SCALE*image->columns*
image->x_resolution+36.0)/72.0);
}
if (image->rows == 0)
{
pango_layout_get_pixel_extents(layout,NULL,&extent);
image->rows=extent.y+extent.height;
}
else
{
image->rows-=2*page.y;
pango_layout_set_height(layout,(PANGO_SCALE*image->rows*
image->y_resolution+36.0)/72.0);
}
/*
Create canvas.
*/
canvas=(FT_Bitmap *) AcquireMagickMemory(sizeof(*canvas));
if (canvas == (FT_Bitmap *) NULL)
{
draw_info=DestroyDrawInfo(draw_info);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
canvas->width=image->columns;
canvas->pitch=(canvas->width+3) & ~3;
canvas->rows=image->rows;
canvas->buffer=(unsigned char *) AcquireQuantumMemory(canvas->pitch,
canvas->rows*sizeof(*canvas->buffer));
if (canvas->buffer == (unsigned char *) NULL)
{
draw_info=DestroyDrawInfo(draw_info);
canvas=(FT_Bitmap *) RelinquishMagickMemory(canvas);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
canvas->num_grays=256;
canvas->pixel_mode=ft_pixel_mode_grays;
ResetMagickMemory(canvas->buffer,0x00,canvas->pitch*canvas->rows);
pango_ft2_render_layout(canvas,layout,0,0);
/*
Convert caption to image.
*/
image->columns+=2*page.x;
image->rows+=2*page.y;
if (SetImageBackgroundColor(image) == MagickFalse)
{
draw_info=DestroyDrawInfo(draw_info);
canvas->buffer=(unsigned char *) RelinquishMagickMemory(canvas->buffer);
canvas=(FT_Bitmap *) RelinquishMagickMemory(canvas);
caption=DestroyString(caption);
image=DestroyImageList(image);
return((Image *) NULL);
}
p=canvas->buffer;
for (y=page.y; y < (ssize_t) (image->rows-page.y); y++)
{
register ssize_t
x;
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
q+=page.x;
for (x=page.x; x < (ssize_t) (image->columns-page.x); x++)
{
MagickRealType
fill_opacity;
(void) GetFillColor(draw_info,x,y,&fill_color);
fill_opacity=QuantumRange-(*p)/canvas->num_grays*(QuantumRange-
fill_color.opacity);
if (draw_info->text_antialias == MagickFalse)
fill_opacity=fill_opacity >= 0.5 ? 1.0 : 0.0;
MagickCompositeOver(&fill_color,fill_opacity,q,q->opacity,q);
p++;
q++;
}
for ( ; x < (ssize_t) ((canvas->width+3) & ~3); x++)
p++;
}
/*
Relinquish resources.
*/
draw_info=DestroyDrawInfo(draw_info);
canvas->buffer=(unsigned char *) RelinquishMagickMemory(canvas->buffer);
canvas=(FT_Bitmap *) RelinquishMagickMemory(canvas);
caption=DestroyString(caption);
return(GetFirstImageInList(image));
}
开发者ID:nfma,项目名称:configuration,代码行数:101,代码来源:caption.c
示例11: load_tile
static MagickBooleanType load_tile(Image *image,Image *tile_image,
XCFDocInfo *inDocInfo,XCFLayerInfo *inLayerInfo,size_t data_length,
ExceptionInfo *exception)
{
ssize_t
y;
register ssize_t
x;
register Quantum
*q;
size_t
extent;
ssize_t
count;
unsigned char
*graydata;
XCFPixelInfo
*xcfdata,
*xcfodata;
extent=0;
if (inDocInfo->image_type == GIMP_GRAY)
extent=tile_image->columns*tile_image->rows*sizeof(*graydata);
else
if (inDocInfo->image_type == GIMP_RGB)
extent=tile_image->columns*tile_image->rows*sizeof(*xcfdata);
if (extent > data_length)
ThrowBinaryException(CorruptImageError,"NotEnoughPixelData",
image->filename);
xcfdata=(XCFPixelInfo *) AcquireQuantumMemory(MagickMax(data_length,
tile_image->columns*tile_image->rows),sizeof(*xcfdata));
if (xcfdata == (XCFPixelInfo *) NULL)
ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
image->filename);
xcfodata=xcfdata;
graydata=(unsigned char *) xcfdata; /* used by gray and indexed */
count=ReadBlob(image,data_length,(unsigned char *) xcfdata);
if (count != (ssize_t) data_length)
ThrowBinaryException(CorruptImageError,"NotEnoughPixelData",
image->filename);
for (y=0; y < (ssize_t) tile_image->rows; y++)
{
q=GetAuthenticPixels(tile_image,0,y,tile_image->columns,1,exception);
if (q == (Quantum *) NULL)
break;
if (inDocInfo->image_type == GIMP_GRAY)
{
for (x=0; x < (ssize_t) tile_image->columns; x++)
{
SetPixelGray(tile_image,ScaleCharToQuantum(*graydata),q);
SetPixelAlpha(tile_image,ScaleCharToQuantum((unsigned char)
inLayerInfo->alpha),q);
graydata++;
q+=GetPixelChannels(tile_image);
}
}
else
if (inDocInfo->image_type == GIMP_RGB)
{
for (x=0; x < (ssize_t) tile_image->columns; x++)
{
SetPixelRed(tile_image,ScaleCharToQuantum(xcfdata->red),q);
SetPixelGreen(tile_image,ScaleCharToQuantum(xcfdata->green),q);
SetPixelBlue(tile_image,ScaleCharToQuantum(xcfdata->blue),q);
SetPixelAlpha(tile_image,xcfdata->alpha == 255U ? TransparentAlpha :
ScaleCharToQuantum((unsigned char) inLayerInfo->alpha),q);
xcfdata++;
q+=GetPixelChannels(tile_image);
}
}
if (SyncAuthenticPixels(tile_image,exception) == MagickFalse)
break;
}
xcfodata=(XCFPixelInfo *) RelinquishMagickMemory(xcfodata);
return MagickTrue;
}
开发者ID:278443820,项目名称:ImageMagick,代码行数:82,代码来源:xcf.c
示例12: ReadPANGOImage
//.........这里部分代码省略.........
else
{
image->columns-=2*page.x;
pango_layout_set_width(layout,(int) ((PANGO_SCALE*image->columns*
(image->resolution.x == 0.0 ? 90.0 : image->resolution.x)+45.0)/90.0+
0.5));
}
if (image->rows == 0)
{
pango_layout_get_extents(layout,NULL,&extent);
image->rows=(extent.y+extent.height+PANGO_SCALE/2)/PANGO_SCALE+2*page.y;
}
else
{
image->rows-=2*page.y;
pango_layout_set_height(layout,(int) ((PANGO_SCALE*image->rows*
(image->resolution.y == 0.0 ? 90.0 : image->resolution.y)+45.0)/90.0+
0.5));
}
/*
Render markup.
*/
stride=(size_t) cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32,
image->columns);
pixels=(unsigned char *) AcquireQuantumMemory(image->rows,stride*
sizeof(*pixels));
if (pixels == (unsigned char *) NULL)
{
draw_info=DestroyDrawInfo(draw_info);
caption=DestroyString(caption);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
surface=cairo_image_surface_create_for_data(pixels,CAIRO_FORMAT_ARGB32,
image->columns,image->rows,stride);
cairo_image=cairo_create(surface);
cairo_set_operator(cairo_image,CAIRO_OPERATOR_CLEAR);
cairo_paint(cairo_image);
cairo_set_operator(cairo_image,CAIRO_OPERATOR_OVER);
cairo_translate(cairo_image,page.x,page.y);
pango_cairo_show_layout(cairo_image,layout);
cairo_destroy(cairo_image);
cairo_surface_destroy(surface);
g_object_unref(layout);
g_object_unref(fontmap);
/*
Convert surface to image.
*/
(void) SetImageBackgroundColor(image,exception);
p=pixels;
GetPixelInfo(image,&fill_color);
for (y=0; y < (ssize_t) image->rows; y++)
{
register Quantum
*q;
register ssize_t
x;
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (Quantum *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
double
gamma;
fill_color.blue=(double) ScaleCharToQuantum(*p++);
fill_color.green=(double) ScaleCharToQuantum(*p++);
fill_color.red=(double) ScaleCharToQuantum(*p++);
fill_color.alpha=(double) ScaleCharToQuantum(*p++);
/*
Disassociate alpha.
*/
gamma=1.0-QuantumScale*fill_color.alpha;
gamma=PerceptibleReciprocal(gamma);
fill_color.blue*=gamma;
fill_color.green*=gamma;
fill_color.red*=gamma;
CompositePixelOver(image,&fill_color,fill_color.alpha,q,(double)
GetPixelAlpha(image,q),q);
q+=GetPixelChannels(image);
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
image->rows);
if (status == MagickFalse)
break;
}
}
/*
Relinquish resources.
*/
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
draw_info=DestroyDrawInfo(draw_info);
caption=DestroyString(caption);
return(GetFirstImageInList(image));
}
开发者ID:epu,项目名称:ImageMagick,代码行数:101,代码来源:pango.c
示例13: ReadYCBCRImage
//.........这里部分代码省略.........
count=0;
length=0;
scene=0;
do
{
/*
Read pixels to virtual canvas image then push to image.
*/
if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
break;
SetImageColorspace(image,YCbCrColorspace);
switch (image_info->interlace)
{
case NoInterlace:
default:
{
/*
No interlacing: YCbCrYCbCrYCbCrYCbCrYCbCrYCbCr...
*/
if (scene == 0)
{
length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
count=ReadBlob(image,length,pixels);
}
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,
quantum_info,quantum_type,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
canvas_image->columns,1,exception);
q=QueueAuthenticPixels(image,0,y-image->extract_info.y,
image->columns,1,exception);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
SetPixelRed(q,GetPixelRed(p));
SetPixelGreen(q,GetPixelGreen(p));
SetPixelBlue(q,GetPixelBlue(p));
if (image->matte != MagickFalse)
SetPixelOpacity(q,GetPixelOpacity(p));
p++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
if (image->previous == (Image *) NULL)
{
开发者ID:0xPr0xy,项目名称:ImageMagick,代码行数:67,代码来源:ycbcr.c
示例14: assert
//.........这里部分代码省略.........
}
/*
Convert JPEG 2000 pixels.
*/
image->alpha_trait=number_components > 3 ? BlendPixelTrait :
UndefinedPixelTrait;
maximum_component_depth=0;
for (i=0; i < (ssize_t) number_components; i++)
{
maximum_component_depth=(unsigned int) MagickMax((size_t)
jas_image_cmptprec(jp2_image,components[i]),(size_t)
maximum_component_depth);
pixels[i]=jas_matrix_create(1,(int) (image->columns/x_step[i]));
if (pixels[i] == (jas_matrix_t *) NULL)
{
for (--i; i >= 0; i--)
jas_matrix_destroy(pixels[i]);
jas_image_destroy(jp2_image);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
}
image->depth=maximum_component_depth;
if (image_info->ping != MagickFalse)
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
return(GetFirstImageInList(image));
}
for (i=0; i < (ssize_t) number_components; i++)
range[i]=GetQuantumRange((size_t) jas_image_cmptprec(jp2_image,
components[i]));
for (y=0; y < (ssize_t) image->rows; y++)
{
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (Quantum *) NULL)
break;
for (i=0; i < (ssize_t) number_components; i++)
(void) jas_image_readcmpt(jp2_image,(short) components[i],0,
(jas_image_coord_t) (y/y_step[i]),(jas_image_coord_t) (image->columns/
x_step[i]),1,pixels[i]);
switch (number_components)
{
case 1:
{
/*
Grayscale.
*/
for (x=0; x < (ssize_t) image->columns; x++)
{
pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
SetPixelGray(image,ScaleAnyToQuantum((QuantumAny) pixel,range[0]),q);
q+=GetPixelChannels(image);
}
break;
}
case 3:
{
/*
RGB.
*/
for (x=0; x < (ssize_t) image->columns; x++)
{
pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
SetPixelRed(image,ScaleAnyToQuantum((QuantumAny) pixel,range[0]),q);
pixel=(QuantumAny) jas_matrix_getv(pixels[1],x/x_step[1]);
SetPixelGreen(image,ScaleAnyToQuantum((QuantumAny) pixel,range[1]),q);
开发者ID:0xPr0xy,项目名称:ImageMagick,代码行数:67,代码来源:jp2.c
示例15: WriteHISTOGRAMImage
//.........这里部分代码省略.........
if (p == (const PixelPacket *) NULL)
break;
for (x=0; x < (long) image->columns; x++)
{
if ((channel & RedChannel) != 0)
histogram[ScaleQuantumToChar(p->red)].red++;
if ((channel & GreenChannel) != 0)
histogram[ScaleQuantumToChar(p->green)].green++;
if ((channel & BlueChannel) != 0)
histogram[ScaleQuantumToChar(p->blue)].blue++;
p++;
}
}
maximum=histogram[0].red;
for (x=0; x < (long) histogram_image->columns; x++)
{
if (((channel & RedChannel) != 0) && (maximum < histogram[x].red))
maximum=histogram[x].red;
if (((channel & GreenChannel) != 0) && (maximum < histogram[x].green))
maximum=histogram[x].green;
if (((channel & BlueChannel) != 0) && (maximum < histogram[x].blue))
maximum=histogram[x].blue;
}
scale=(MagickRealType) histogram_image->rows/maximum;
/*
Initialize histogram image.
*/
exception=(&image->exception);
(void) QueryColorDatabase("#000000",&histogram_image->background_color,
&image->exception);
(void) SetImageBackgroundColor(histogram_image);
for (x=0; x < (long) histogram_image->columns; x++)
{
q=GetAuthenticPixels(histogram_image,x,0,1,histogram_image->rows,exception);
if (q == (PixelPacket *) NULL)
break;
if ((channel & RedChannel) != 0)
{
y=(long) (histogram_image->rows-scale*histogram[x].red+0.5);
r=q+y;
for ( ; y < (long) histogram_image->rows; y++)
{
r->red=(Quantum) QuantumRange;
r++;
}
}
if ((channel & GreenChannel) != 0)
{
y=(long) (histogram_image->rows-scale*histogram[x].green+0.5);
r=q+y;
for ( ; y < (long) histogram_image->rows; y++)
{
r->green=(Quantum) QuantumRange;
r++;
}
}
if ((channel & BlueChannel) != 0)
{
y=(long) (histogram_image->rows-scale*histogram[x].blue+0.5);
r=q+y;
for ( ; y < (long) histogram_image->rows; y++)
{
r->blue=(Quantum) QuantumRange;
r++;
}
}
开发者ID:0xPr0xy,项目名称:ImageMagick,代码行数:67,代码来源:histogram.c
示例16: assert
//.........这里部分代码省略.........
jas_image_destroy(jp2_image);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
}
image->depth=maximum_component_depth;
if (image_info->ping != MagickFalse)
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
return(GetFirstImageInList(image));
}
for (i=0; i < (long) number_components; i++)
{
long
j;
map[i]=(QuantumAny *) AcquireQuantumMemory(MaxMap+1,sizeof(**map));
if (map[i] == (QuantumAny *) NULL)
{
for (--i; i >= 0; i--)
map[i]=(QuantumAny *) RelinquishMagickMemory(map[i]);
for (i=0; i < (long) number_components; i++)
jas_matrix_destroy(pixels[i]);
jas_image_destroy(jp2_image);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
range=GetQuantumRange((unsigned long) jas_image_cmptprec(jp2_image,
components[i]));
for (j=0; j <= (long) MaxMap; j++)
map[i][j]=ScaleQuantumToMap(ScaleAnyToQuantum((QuantumAny) j,range));
}
for (y=0; y < (long) image->rows; y++)
{
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
for (i=0; i < (long) number_components; i++)
(void) jas_image_readcmpt(jp2_image,(short) components[i],0,
((unsigned int) y)/y_step[i],((unsigned int) image->columns)/x_step[i],
1,pixels[i]);
switch (number_components)
{
case 1:
{
/*
Grayscale.
*/
for (x=0; x < (long) image->columns; x++)
{
pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
q->red=(Quantum) map[0][pixel];
q->green=q->red;
q->blue=q->red;
q++;
}
break;
}
case 3:
{
/*
RGB.
*/
for (x=0; x < (long) image->columns; x++)
{
pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
q->red=(Quantum) map[0][pixel];
开发者ID:0xPr0xy,项目名称:ImageMagick,代码行数:67,代码来源:jp2.c
示例17: ReadRAWImage
//.........这里部分代码省略.........
*/
if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
break;
status=SetImageExtent(image,image->columns,image->rows);
if (status == MagickFalse)
{
InheritException(exception,&image->exception);
return(DestroyImageList(image));
}
if (scene == 0)
{
length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
pixels=(const unsigned char *) ReadBlobStream(image,length,
GetQuantumPixels(quantum_info),&count);
}
for (y=0; y < (ssize_t) image->extract_info.height; y++)
{
register const PixelPacket
*magick_restrict p;
register PixelPacket
*magick_restrict q;
register ssize_t
x;
if (count != (ssize_t) length)
{
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
break;
}
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,quantum_info,
quantum_type,pixels,exception);
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
break;
if (((y-image->extract_info.y) >= 0) &&
((y-image->extract_info.y) < (ssize_t) image->rows))
{
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
image->columns,1,exception);
q=QueueAuthenticPixels(image,0,y-image->extract_info.y,image->column
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