libs/filters/GP_ApplyTables.gen.c.t

   1 @ include source.t
   2 /*
   3  * Generic Point filer
   4  *
   5  * Copyright (C) 2009-2014 Cyril Hrubis <metan@ucw.cz>
   6  */
   7
   8 #include <errno.h>
   9
  10 #include "core/GP_Pixmap.h"
  11 #include "core/GP_GetPutPixel.h"
  12 #include "core/GP_Debug.h"
  13
  14 #include "filters/GP_ApplyTables.h"
  15
  16 @ for pt in pixeltypes:
  17 @     if not pt.is_unknown() and not pt.is_palette():
  18 static int apply_tables_{{ pt.name }}(const gp_pixmap *const src,
  19                                       gp_coord x_src, gp_coord y_src,
  20                                       gp_size w_src, gp_size h_src,
  21                                       gp_pixmap *dst,
  22                                       gp_coord x_dst, gp_coord y_dst,
  23                                       const gp_filter_tables *const tables,
  24                                       gp_progress_cb *callback)
  25 {
  26         GP_DEBUG(1, "Point filter %ux%u", w_src, h_src);
  27
  28         unsigned int x, y;
  29
  30 @         for c in pt.chanslist:
  31         gp_pixel {{ c.name }};
  32 @         end
  33
  34         for (y = 0; y < h_src; y++) {
  35                 for (x = 0; x < w_src; x++) {
  36                         unsigned int src_x = x_src + x;
  37                         unsigned int src_y = y_src + y;
  38                         unsigned int dst_x = x_dst + x;
  39                         unsigned int dst_y = y_dst + y;
  40
  41                         gp_pixel pix = gp_getpixel_raw_{{ pt.pixelsize.suffix }}(src, src_x, src_y);
  42
  43 @         for c in pt.chanslist:
  44                         {{ c.name }} = GP_PIXEL_GET_{{ c[0] }}_{{ pt.name }}(pix);
  45                         {{ c.name }} = tables->table[{{ c.idx }}][{{ c.name }}];
  46 @         end
  47
  48                         pix = GP_PIXEL_CREATE_{{ pt.name }}({{ arr_to_params(pt.chan_names) }});
  49                         gp_putpixel_raw_{{ pt.pixelsize.suffix }}(dst, dst_x, dst_y, pix);
  50                 }
  51
  52                 if (gp_progress_cb_report(callback, y, h_src, w_src)) {
  53                         errno = ECANCELED;
  54                         return 1;
  55                 }
  56         }
  57
  58         gp_progress_cb_done(callback);
  59
  60         return 0;
  61 }
  62
  63 @ end
  64 @
  65 int gp_filter_tables_apply(const gp_pixmap *const src,
  66                            gp_coord x_src, gp_coord y_src,
  67                            gp_size w_src, gp_size h_src,
  68                            gp_pixmap *dst,
  69                            gp_coord x_dst, gp_coord y_dst,
  70                            const gp_filter_tables *const tables,
  71                            gp_progress_cb *callback)
  72 {
  73         GP_ASSERT(src->pixel_type == dst->pixel_type);
  74         //TODO: Assert size
  75
  76         switch (src->pixel_type) {
  77 @ for pt in pixeltypes:
  78 @     if not pt.is_unknown() and not pt.is_palette():
  79         case GP_PIXEL_{{ pt.name }}:
  80                 return apply_tables_{{ pt.name }}(src, x_src, y_src,
  81                                                   w_src, h_src, dst,
  82                                                   x_dst, y_dst,
  83                                                   tables, callback);
  84         break;
  85 @ end
  86         default:
  87                 errno = EINVAL;
  88                 return -1;
  89         }
  90 }