git.gag.com Git - fw/altos/blob - src/draw/make-logo

   1 #!/usr/bin/nickle
   2
   3 typedef struct {
   4         string  cmd;
   5         real    x, y;
   6 } coord_t;
   7
   8 coord_t[] top = {
   9         { .cmd = "m",  .x = 931.07168, .y = 27.69425 },
  10         { .cmd = "l",  .x = 224.03682, .y = 720.46517 },
  11         { .cmd = "l",  .x = -63.341, .y = 76.00913 },
  12         { .cmd = "L",  .x = 931.07168, .y = 486.3269 },
  13         { .cmd = "L",  .x = 770.37586, .y = 824.16855 },
  14         { .cmd = "L",  .x = 707.03486, .y = 748.15942 },
  15         { .cmd = "L",  .x = 931.07168, .y = 27.69425 },
  16 };
  17
  18 coord_t[] bottom = {
  19         { .cmd = "m",  .x = 931.07168, .y = 1164.597 },
  20         { .cmd = "l",  .x = 248.86992, .y = -331.80265 },
  21         { .cmd = "l",  .x = 416.1687, .y = 1338.32935 },
  22         { .cmd = "l",  .x = 286.6484, .y = 267.1042 },
  23         { .cmd = "l",  .x = -520.4224, .y = 0 },
  24         { .cmd = "l",  .x = -270.2797, .y = -262.2181 },
  25         { .cmd = "l",  .x = 0, .y = -1033.0627 },
  26         { .cmd = "l",  .x = -160.98492, .y = 106.6818 },
  27         { .cmd = "l",  .x = -160.98492, .y = -106.6818 },
  28         { .cmd = "l",  .x = 0, .y = 1033.0627 },
  29         { .cmd = "l",  .x = -270.2797, .y = 262.2181 },
  30         { .cmd = "l",  .x = -520.4224, .y = 0 },
  31         { .cmd = "l",  .x = 286.6484, .y = -267.1042 },
  32         { .cmd = "l",  .x = 416.1687, .y = -1338.32935 },
  33         { .cmd = "l",  .x = 248.86992, .y = 331.80265 },
  34 };
  35
  36 typedef struct {
  37         bool    set;
  38         real    min_x, max_x, min_y, max_y;
  39 } bounds_t;
  40
  41 bounds_t
  42 merge_bounds(coord_t[] polygon, bounds_t bounds)
  43 {
  44         real x = 0.0;
  45         real y = 0.0;
  46
  47         for (int i = 0; i < dim(polygon); i++) {
  48                 switch (polygon[i].cmd) {
  49                 case "m":
  50                 case "l":
  51                         x += polygon[i].x;
  52                         y += polygon[i].y;
  53                         break;
  54                 case "M":
  55                 case "L":
  56                         x = polygon[i].x;
  57                         y = polygon[i].y;
  58                         break;
  59                 }
  60                 if (!bounds.set) {
  61                         bounds.min_x = bounds.max_x = x;
  62                         bounds.min_y = bounds.max_y = y;
  63                         bounds.set = true;
  64                 } else {
  65                         bounds.min_x = min(x, bounds.min_x);
  66                         bounds.max_x = max(x, bounds.max_x);
  67                         bounds.min_y = min(y, bounds.min_y);
  68                         bounds.max_y = max(y, bounds.max_y);
  69                 }
  70         }
  71         return bounds;
  72 }
  73
  74 void
  75 print_poly(coord_t[] polygon, real height, bounds_t bounds, real x_pos, real y_pos)
  76 {
  77         real x = 0.0;
  78         real y = 0.0;
  79
  80         real scale = height / (bounds.max_y - bounds.min_y);
  81         real x_off = bounds.min_x;
  82         real y_off = bounds.min_y;
  83
  84         for (int i = 0; i < dim(polygon); i++) {
  85                 switch (polygon[i].cmd) {
  86                 case "m":
  87                 case "l":
  88                         x += polygon[i].x;
  89                         y += polygon[i].y;
  90                         break;
  91                 case "M":
  92                 case "L":
  93                         x = polygon[i].x;
  94                         y = polygon[i].y;
  95                         break;
  96                 }
  97                 printf("\t{ .x = %8.6ff, .y = %8.6ff },\n",
  98                        imprecise((x - x_off) * scale + x_pos),
  99                        imprecise((y - y_off) * scale + y_pos));
 100         }
 101 }
 102
 103 void
 104 print_logo(string name, real height, real x_pos, real y_pos)
 105 {
 106         bounds_t bounds = { .set = false };
 107         bounds = merge_bounds(top, bounds);
 108         bounds = merge_bounds(bottom, bounds);
 109         printf("const struct ao_coord %s_top[] = {\n", name);
 110         print_poly(top, height, bounds, x_pos, y_pos);
 111         printf("};\n");
 112         printf("\n");
 113         printf("const struct ao_coord %s_bottom[] = {\n", name);
 114         print_poly(bottom, height, bounds, x_pos, y_pos);
 115         printf("};\n");
 116         printf("\n");
 117         real width = height * (bounds.max_x - bounds.min_x) / (bounds.max_y - bounds.min_y);
 118         printf("static const float %s_height = %8.6ff;\n", name, height);
 119         printf("static const float %s_width = %8.6ff;\n", name, width);
 120 }
 121
 122 print_logo(argv[1], 1.0, 0, 0);