Pileus Git - ~andy/gtk/blob - gdk-pixbuf/pixops/pixops.h

   1 #ifndef PIXOPS_H
   2 #define PIXOPS_H
   3
   4 #include <glib.h>
   5 #include "gdk-pixbuf.h"
   6
   7 \f
   8
   9 /* Scale src_buf from src_width / src_height by factors scale_x, scale_y
  10  * and composite the portion corresponding to
  11  * render_x, render_y, render_width, render_height in the new
  12  * coordinate system into dest_buf starting at 0, 0
  13  */
  14 void pixops_composite (guchar         *dest_buf,
  15                        int             render_x0,
  16                        int             render_y0,
  17                        int             render_x1,
  18                        int             render_y1,
  19                        int             dest_rowstride,
  20                        int             dest_channels,
  21                        int             dest_has_alpha,
  22                        const guchar   *src_buf,
  23                        int             src_width,
  24                        int             src_height,
  25                        int             src_rowstride,
  26                        int             src_channels,
  27                        int             src_has_alpha,
  28                        double          scale_x,
  29                        double          scale_y,
  30                        GdkInterpType   interp_type,
  31                        int             overall_alpha);
  32
  33 /* Scale src_buf from src_width / src_height by factors scale_x, scale_y
  34  * and composite the portion corresponding to
  35  * render_x, render_y, render_width, render_height in the new
  36  * coordinate system against a checkboard with checks of size check_size
  37  * of the colors color1 and color2 into dest_buf starting at 0, 0
  38  */
  39 void pixops_composite_color (guchar         *dest_buf,
  40                              int             render_x0,
  41                              int             render_y0,
  42                              int             render_x1,
  43                              int             render_y1,
  44                              int             dest_rowstride,
  45                              int             dest_channels,
  46                              int             dest_has_alpha,
  47                              const guchar   *src_buf,
  48                              int             src_width,
  49                              int             src_height,
  50                              int             src_rowstride,
  51                              int             src_channels,
  52                              int             src_has_alpha,
  53                              double          scale_x,
  54                              double          scale_y,
  55                              GdkInterpType   interp_type,
  56                              int             overall_alpha,
  57                              int             check_x,
  58                              int             check_y,
  59                              int             check_size,
  60                              guint32         color1,
  61                              guint32         color2);
  62
  63 /* Scale src_buf from src_width / src_height by factors scale_x, scale_y
  64  * and composite the portion corresponding to
  65  * render_x, render_y, render_width, render_height in the new
  66  * coordinate system into dest_buf starting at 0, 0
  67  */
  68 void pixops_scale     (guchar         *dest_buf,
  69                        int             render_x0,
  70                        int             render_y0,
  71                        int             render_x1,
  72                        int             render_y1,
  73                        int             dest_rowstride,
  74                        int             dest_channels,
  75                        int             dest_has_alpha,
  76                        const guchar   *src_buf,
  77                        int             src_width,
  78                        int             src_height,
  79                        int             src_rowstride,
  80                        int             src_channels,
  81                        int             src_has_alpha,
  82                        double          scale_x,
  83                        double          scale_y,
  84                        GdkInterpType   interp_type);
  85
  86 \f
  87
  88 #endif