Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4680 | right-hear | 1 | #include "fitz.h" |
| 2 | |||
| 3 | fz_shade * |
||
| 4 | fz_keep_shade(fz_shade *shade) |
||
| 5 | { |
||
| 6 | shade->refs ++; |
||
| 7 | return shade; |
||
| 8 | } |
||
| 9 | |||
| 10 | void |
||
| 11 | fz_drop_shade(fz_shade *shade) |
||
| 12 | { |
||
| 13 | if (shade && --shade->refs == 0) |
||
| 14 | { |
||
| 15 | if (shade->colorspace) |
||
| 16 | fz_drop_colorspace(shade->colorspace); |
||
| 17 | fz_free(shade->mesh); |
||
| 18 | fz_free(shade); |
||
| 19 | } |
||
| 20 | } |
||
| 21 | |||
| 22 | fz_rect |
||
| 23 | fz_bound_shade(fz_shade *shade, fz_matrix ctm) |
||
| 24 | { |
||
| 25 | float *v; |
||
| 26 | fz_rect r; |
||
| 27 | fz_point p; |
||
| 28 | int i, ncomp, nvert; |
||
| 29 | |||
| 30 | ctm = fz_concat(shade->matrix, ctm); |
||
| 31 | ncomp = shade->use_function ? 3 : 2 + shade->colorspace->n; |
||
| 32 | nvert = shade->mesh_len / ncomp; |
||
| 33 | v = shade->mesh; |
||
| 34 | |||
| 35 | if (shade->type == FZ_LINEAR) |
||
| 36 | return fz_infinite_rect; |
||
| 37 | if (shade->type == FZ_RADIAL) |
||
| 38 | return fz_infinite_rect; |
||
| 39 | |||
| 40 | if (nvert == 0) |
||
| 41 | return fz_empty_rect; |
||
| 42 | |||
| 43 | p.x = v[0]; |
||
| 44 | p.y = v[1]; |
||
| 45 | v += ncomp; |
||
| 46 | p = fz_transform_point(ctm, p); |
||
| 47 | r.x0 = r.x1 = p.x; |
||
| 48 | r.y0 = r.y1 = p.y; |
||
| 49 | |||
| 50 | for (i = 1; i < nvert; i++) |
||
| 51 | { |
||
| 52 | p.x = v[0]; |
||
| 53 | p.y = v[1]; |
||
| 54 | p = fz_transform_point(ctm, p); |
||
| 55 | v += ncomp; |
||
| 56 | if (p.x < r.x0) r.x0 = p.x; |
||
| 57 | if (p.y < r.y0) r.y0 = p.y; |
||
| 58 | if (p.x > r.x1) r.x1 = p.x; |
||
| 59 | if (p.y > r.y1) r.y1 = p.y; |
||
| 60 | } |
||
| 61 | |||
| 62 | return r; |
||
| 63 | } |
||
| 64 | |||
| 65 | void |
||
| 66 | fz_debug_shade(fz_shade *shade) |
||
| 67 | { |
||
| 68 | int i, j, n; |
||
| 69 | float *vertex; |
||
| 70 | int triangle; |
||
| 71 | |||
| 72 | printf("shading {\n"); |
||
| 73 | |||
| 74 | switch (shade->type) |
||
| 75 | { |
||
| 76 | case FZ_LINEAR: printf("\ttype linear\n"); break; |
||
| 77 | case FZ_RADIAL: printf("\ttype radial\n"); break; |
||
| 78 | case FZ_MESH: printf("\ttype mesh\n"); break; |
||
| 79 | } |
||
| 80 | |||
| 81 | printf("\tbbox [%g %g %g %g]\n", |
||
| 82 | shade->bbox.x0, shade->bbox.y0, |
||
| 83 | shade->bbox.x1, shade->bbox.y1); |
||
| 84 | |||
| 85 | printf("\tcolorspace %s\n", shade->colorspace->name); |
||
| 86 | |||
| 87 | printf("\tmatrix [%g %g %g %g %g %g]\n", |
||
| 88 | shade->matrix.a, shade->matrix.b, shade->matrix.c, |
||
| 89 | shade->matrix.d, shade->matrix.e, shade->matrix.f); |
||
| 90 | |||
| 91 | if (shade->use_background) |
||
| 92 | { |
||
| 93 | printf("\tbackground ["); |
||
| 94 | for (i = 0; i < shade->colorspace->n; i++) |
||
| 95 | printf("%s%g", i == 0 ? "" : " ", shade->background[i]); |
||
| 96 | printf("]\n"); |
||
| 97 | } |
||
| 98 | |||
| 99 | if (shade->use_function) |
||
| 100 | { |
||
| 101 | printf("\tfunction\n"); |
||
| 102 | n = 3; |
||
| 103 | } |
||
| 104 | else |
||
| 105 | n = 2 + shade->colorspace->n; |
||
| 106 | |||
| 107 | printf("\tvertices: %d\n", shade->mesh_len); |
||
| 108 | |||
| 109 | vertex = shade->mesh; |
||
| 110 | triangle = 0; |
||
| 111 | i = 0; |
||
| 112 | while (i < shade->mesh_len) |
||
| 113 | { |
||
| 114 | printf("\t%d:(%g, %g): ", triangle, vertex[0], vertex[1]); |
||
| 115 | |||
| 116 | for (j = 2; j < n; j++) |
||
| 117 | printf("%s%g", j == 2 ? "" : " ", vertex[j]); |
||
| 118 | printf("\n"); |
||
| 119 | |||
| 120 | vertex += n; |
||
| 121 | i++; |
||
| 122 | if (i % 3 == 0) |
||
| 123 | triangle++; |
||
| 124 | } |
||
| 125 | |||
| 126 | printf("}\n"); |
||
| 127 | } |