imagemagick/magick/draw-private.h

85 lines
2.4 KiB
C

/*
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.
MagickCore private image drawing methods.
*/
#ifndef MAGICKCORE_DRAW_PRIVATE_H
#define MAGICKCORE_DRAW_PRIVATE_H
#include "magick/cache.h"
#include "magick/image.h"
#include "magick/memory_.h"
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
static inline MagickBooleanType GetFillColor(const DrawInfo *draw_info,
const ssize_t x,const ssize_t y,PixelPacket *fill)
{
Image
*pattern;
MagickBooleanType
status;
pattern=draw_info->fill_pattern;
if (pattern == (Image *) NULL)
{
*fill=draw_info->fill;
return(MagickTrue);
}
status=GetOneVirtualMethodPixel(pattern,TileVirtualPixelMethod,
x+pattern->tile_offset.x,y+pattern->tile_offset.y,fill,&pattern->exception);
if (pattern->matte == MagickFalse)
fill->opacity=OpaqueOpacity;
if (fabs(draw_info->fill_opacity-TransparentOpacity) >= MagickEpsilon)
fill->opacity=(Quantum) (QuantumRange-(QuantumRange-fill->opacity)*
QuantumScale*(QuantumRange-draw_info->fill_opacity));
return(status);
}
static inline MagickBooleanType GetStrokeColor(const DrawInfo *draw_info,
const ssize_t x,const ssize_t y,PixelPacket *stroke)
{
Image
*pattern;
MagickBooleanType
status;
pattern=draw_info->stroke_pattern;
if (pattern == (Image *) NULL)
{
*stroke=draw_info->stroke;
return(MagickTrue);
}
status=GetOneVirtualMethodPixel(pattern,TileVirtualPixelMethod,
x+pattern->tile_offset.x,y+pattern->tile_offset.y,stroke,
&pattern->exception);
if (pattern->matte == MagickFalse)
stroke->opacity=OpaqueOpacity;
if (fabs(draw_info->stroke_opacity-TransparentOpacity) >= MagickEpsilon)
stroke->opacity=(Quantum) (QuantumRange-(QuantumRange-stroke->opacity)*
QuantumScale*(QuantumRange-draw_info->stroke_opacity));
return(status);
}
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
#endif