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image-private.h
/*
Copyright @ 1999 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/license/
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.
MagickCore image private methods.
*/
#ifndef MAGICKCORE_IMAGE_PRIVATE_H
#define MAGICKCORE_IMAGE_PRIVATE_H
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
#define MagickMax(x,y) (((x) > (y)) ? (x) : (y))
#define MagickMin(x,y) (((x) < (y)) ? (x) : (y))
#include "MagickCore/pixel-accessor.h"
#include "MagickCore/quantum-private.h"
#define BackgroundColor "#ffffff" /* white */
#define BackgroundColorRGBA QuantumRange,QuantumRange,QuantumRange,OpaqueAlpha
#define BorderColor "#dfdfdf" /* gray */
#define BorderColorRGBA ScaleShortToQuantum(0xdfdf),\
ScaleShortToQuantum(0xdfdf),ScaleShortToQuantum(0xdfdf),OpaqueAlpha
#define DefaultResolution 72.0
#define DefaultTileFrame "15x15+3+3"
#define DefaultTileGeometry "120x120+4+3>"
#define DefaultTileLabel "%f\n%G\n%b"
#define ForegroundColor "#000" /* black */
#define ForegroundColorRGBA 0,0,0,OpaqueAlpha
#define LoadImagesTag "Load/Images"
#define LoadImageTag "Load/Image"
#define Magick2PI 6.28318530717958647692528676655900576839433879875020
#define MagickAbsoluteValue(x) ((x) < 0 ? -(x) : (x))
#define MagickPHI 1.61803398874989484820458683436563811772030917980576
#define MagickPI2 1.57079632679489661923132169163975144209858469968755
#define MagickPI 3.1415926535897932384626433832795028841971693993751058209749445923078164062
#define MagickSQ1_2 0.70710678118654752440084436210484903928483593768847
#define MagickSQ2 1.41421356237309504880168872420969807856967187537695
#define MagickSQ2PI 2.50662827463100024161235523934010416269302368164062
#define MAGICK_UCHAR_MAX (UCHAR_MAX)
#define MAGICK_UINT_MAX (UINT_MAX)
#define MAGICK_ULONG_MAX (ULONG_MAX)
#define MAGICK_USHORT_MAX (USHRT_MAX)
#define MatteColor "#bdbdbd" /* gray */
#define MatteColorRGBA ScaleShortToQuantum(0xbdbd),\
ScaleShortToQuantum(0xbdbd),ScaleShortToQuantum(0xbdbd),OpaqueAlpha
#define PSDensityGeometry "72.0x72.0"
#define PSPageGeometry "612x792"
#define SaveImagesTag "Save/Images"
#define SaveImageTag "Save/Image"
#define TransparentColor "#00000000" /* transparent black */
#define TransparentColorRGBA (Quantum) 0,(Quantum) 0,(Quantum) 0,TransparentAlpha
#define UndefinedCompressionQuality 0UL
#define UndefinedTicksPerSecond 100L
static inline int CastDoubleToInt(const double x)
{
double
value;
if (IsNaN(x) != 0)
{
errno=ERANGE;
return(0);
}
value=(x < 0.0) ? ceil(x) : floor(x);
if (value < 0.0)
{
errno=ERANGE;
return(0);
}
if (value >= ((double) MAGICK_INT_MAX))
{
errno=ERANGE;
return(MAGICK_INT_MAX);
}
return((int) value);
}
static inline ptrdiff_t CastDoubleToPtrdiffT(const double x)
{
double
value;
if (IsNaN(x) != 0)
{
errno=ERANGE;
return(0);
}
value=(x < 0.0) ? ceil(x) : floor(x);
if (value < ((double) MAGICK_PTRDIFF_MIN))
{
errno=ERANGE;
return(MAGICK_PTRDIFF_MIN);
}
if (value >= ((double) MAGICK_PTRDIFF_MAX))
{
errno=ERANGE;
return(MAGICK_PTRDIFF_MAX);
}
return((ptrdiff_t) value);
}
static inline QuantumAny CastDoubleToQuantumAny(const double x)
{
double
value;
if (IsNaN(x) != 0)
{
errno=ERANGE;
return(0);
}
value=(x < 0.0) ? ceil(x) : floor(x);
if (value < 0.0)
{
errno=ERANGE;
return(0);
}
if (value >= ((double) ((QuantumAny) ~0)))
{
errno=ERANGE;
return((QuantumAny) ~0);
}
return((QuantumAny) value);
}
static inline size_t CastDoubleToSizeT(const double x)
{
double
value;
if (IsNaN(x) != 0)
{
errno=ERANGE;
return(0);
}
value=(x < 0.0) ? ceil(x) : floor(x);
if (value < 0.0)
{
errno=ERANGE;
return(0);
}
if (value >= ((double) MAGICK_SIZE_MAX))
{
errno=ERANGE;
return(MAGICK_SIZE_MAX);
}
return((size_t) value);
}
static inline ssize_t CastDoubleToSsizeT(const double x)
{
double
value;
if (IsNaN(x) != 0)
{
errno=ERANGE;
return(0);
}
value=(x < 0.0) ? ceil(x) : floor(x);
if (value < ((double) MAGICK_SSIZE_MIN))
{
errno=ERANGE;
return((ssize_t) MAGICK_SSIZE_MIN);
}
if (value >= ((double) MAGICK_SSIZE_MAX))
{
errno=ERANGE;
return((ssize_t) MAGICK_SSIZE_MAX);
}
return((ssize_t) value);
}
static inline unsigned char CastDoubleToUChar(const double x)
{
double
value;
if (IsNaN(x) != 0)
{
errno=ERANGE;
return(0);
}
value=(x < 0.0) ? ceil(x) : floor(x);
if (value < 0.0)
{
errno=ERANGE;
return(0);
}
if (value >= ((double) MAGICK_UCHAR_MAX))
{
errno=ERANGE;
return(MAGICK_UCHAR_MAX);
}
return((unsigned char) value);
}
static inline unsigned int CastDoubleToUInt(const double x)
{
double
value;
if (IsNaN(x) != 0)
{
errno=ERANGE;
return(0);
}
value=(x < 0.0) ? ceil(x) : floor(x);
if (value < 0.0)
{
errno=ERANGE;
return(0);
}
if (value >= ((double) MAGICK_UINT_MAX))
{
errno=ERANGE;
return(MAGICK_UINT_MAX);
}
return((unsigned int) value);
}
static inline unsigned short CastDoubleToUShort(const double x)
{
double
value;
if (IsNaN(x) != 0)
{
errno=ERANGE;
return(0);
}
value=(x < 0.0) ? ceil(x) : floor(x);
if (value < 0.0)
{
errno=ERANGE;
return(0);
}
if (value >= ((double) MAGICK_USHORT_MAX))
{
errno=ERANGE;
return(MAGICK_USHORT_MAX);
}
return((unsigned short) value);
}
static inline double DegreesToRadians(const double degrees)
{
return((double) (MagickPI*degrees/180.0));
}
static inline size_t GetImageChannels(const Image *image)
{
ssize_t
i;
size_t
channels;
channels=0;
for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
{
PixelChannel channel = GetPixelChannelChannel(image,i);
PixelTrait traits = GetPixelChannelTraits(image,channel);
if ((traits & UpdatePixelTrait) != 0)
channels++;
}
return(channels == 0 ? (size_t) 1 : channels);
}
static inline double RadiansToDegrees(const double radians)
{
return((double) (180.0*radians/MagickPI));
}
static inline unsigned char ScaleColor5to8(const unsigned int color)
{
return((unsigned char) (((color) << 3) | ((color) >> 2)));
}
static inline unsigned char ScaleColor6to8(const unsigned int color)
{
return((unsigned char) (((color) << 2) | ((color) >> 4)));
}
static inline unsigned int ScaleColor8to5(const unsigned char color)
{
return((unsigned int) (((color) & ~0x07) >> 3));
}
static inline unsigned int ScaleColor8to6(const unsigned char color)
{
return((unsigned int) (((color) & ~0x03) >> 2));
}
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
#endif