Mercurial > MadButterfly
annotate src/redraw_man.c @ 29:f56c96b035a8
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| author | Thinker K.F. Li <thinker@branda.to> |
|---|---|
| date | Mon, 04 Aug 2008 21:13:32 +0800 |
| parents | 604bc90d509d |
| children | e06a4a667ce2 |
| rev | line source |
|---|---|
| 12 | 1 #include <stdio.h> |
| 2 #include <stdlib.h> | |
| 3 #include <string.h> | |
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X_main uses rdman_redraw_all()
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4 #include <cairo.h> |
| 12 | 5 #include "mb_types.h" |
| 6 #include "shapes.h" | |
| 7 #include "tools.h" | |
| 8 #include "redraw_man.h" | |
| 9 | |
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Set line width for path.
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10 /* NOTE: bounding box should also consider width of stroke. |
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11 */ |
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12 |
| 12 | 13 #define OK 0 |
| 14 #define ERR -1 | |
| 15 | |
| 13 | 16 #define OFFSET(type, field) ((void *)&((type *)NULL)->field - (void *)NULL) |
| 17 #define SWAP(a, b, t) do { t c; c = a; a = b; b = c; } while(0) | |
| 18 | |
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19 #ifdef UNITTEST |
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20 typedef struct _sh_dummy sh_dummy_t; |
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21 |
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22 extern void sh_dummy_transform(shape_t *shape); |
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23 extern void sh_dummy_fill(shape_t *, cairo_t *); |
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24 #endif /* UNITTEST */ |
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25 |
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26 /*! \brief Sort a list of element by a unsigned integer. |
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27 * |
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28 * The result is in ascend order. The unsigned integers is |
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29 * at offset specified by 'off' from start address of elemnts. |
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30 */ |
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31 static void _insert_sort(void **elms, int num, int off) { |
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32 int i, j; |
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33 unsigned int val; |
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34 |
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35 for(i = 1; i < num; i++) { |
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36 val = *(unsigned int *)(elms[i] + off); |
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37 for(j = i; j > 0; j--) { |
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38 if(*(unsigned int *)(elms[j - 1] + off) <= val) |
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39 break; |
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40 elms[j] = elms[j - 1]; |
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41 } |
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42 elms[j] = elms[i]; |
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43 } |
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44 } |
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45 |
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46 static int extend_memblk(void **buf, int o_size, int n_size) { |
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47 void *new_buf; |
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48 |
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49 new_buf = realloc(*buf, n_size); |
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50 if(new_buf == NULL) |
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51 return ERR; |
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52 |
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53 if(new_buf != *buf) |
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54 *buf = new_buf; |
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55 |
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56 return OK; |
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57 } |
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58 |
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59 static int add_dirty_geo(redraw_man_t *rdman, geo_t *geo) { |
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60 int max_dirty_geos; |
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61 int r; |
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62 |
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63 if(rdman->n_dirty_geos >= rdman->max_dirty_geos) { |
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64 max_dirty_geos = rdman->n_geos; |
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65 r = extend_memblk((void **)&rdman->dirty_geos, |
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66 sizeof(geo_t *) * rdman->n_dirty_geos, |
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67 sizeof(geo_t *) * max_dirty_geos); |
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68 if(r != OK) |
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69 return ERR; |
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70 rdman->max_dirty_geos = max_dirty_geos; |
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71 } |
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72 |
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73 rdman->dirty_geos[rdman->n_dirty_geos++] = geo; |
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74 return OK; |
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75 } |
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76 |
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77 static int add_dirty_area(redraw_man_t *rdman, area_t *area) { |
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78 int max_dirty_areas; |
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79 int r; |
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80 |
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81 if(rdman->n_dirty_areas >= rdman->max_dirty_areas) { |
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82 /* every geo object and coord object can contribute 2 areas. */ |
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83 max_dirty_areas = (rdman->n_geos + rdman->n_coords) * 2; |
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84 r = extend_memblk((void **)&rdman->dirty_areas, |
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85 sizeof(area_t *) * rdman->n_dirty_areas, |
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86 sizeof(area_t *) * max_dirty_areas); |
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87 if(r != OK) |
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88 return ERR; |
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89 rdman->max_dirty_areas = max_dirty_areas; |
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90 } |
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91 |
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92 rdman->dirty_areas[rdman->n_dirty_areas++] = area; |
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93 return OK; |
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94 } |
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95 |
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96 static void area_to_positions(area_t *area, co_aix (*poses)[2]) { |
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97 poses[0][0] = area->x; |
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98 poses[0][1] = area->y; |
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99 poses[1][0] = area->x + area->w; |
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100 poses[1][1] = area->y + area->h;; |
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101 } |
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102 |
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103 int redraw_man_init(redraw_man_t *rdman, cairo_t *cr, cairo_t *backend) { |
| 12 | 104 extern void redraw_man_destroy(redraw_man_t *rdman); |
| 105 | |
| 106 memset(rdman, 0, sizeof(redraw_man_t)); | |
| 107 | |
| 108 rdman->geo_pool = elmpool_new(sizeof(geo_t), 128); | |
| 109 if(rdman->geo_pool == NULL) | |
| 110 return ERR; | |
| 111 | |
| 112 rdman->coord_pool = elmpool_new(sizeof(coord_t), 16); | |
| 113 if(rdman->coord_pool == NULL) { | |
| 114 elmpool_free(rdman->geo_pool); | |
| 115 return ERR; | |
| 116 } | |
| 117 | |
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118 rdman->shnode_pool = elmpool_new(sizeof(shnode_t), 16); |
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119 if(rdman->shnode_pool == NULL) { |
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120 elmpool_free(rdman->geo_pool); |
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121 elmpool_free(rdman->coord_pool); |
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122 return ERR; |
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123 } |
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124 |
| 12 | 125 rdman->root_coord = elmpool_elm_alloc(rdman->coord_pool); |
| 126 if(rdman->root_coord == NULL) | |
| 127 redraw_man_destroy(rdman); | |
| 13 | 128 rdman->n_coords = 1; |
| 12 | 129 coord_init(rdman->root_coord, NULL); |
| 130 | |
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131 rdman->cr = cr; |
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132 rdman->backend = backend; |
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133 |
| 12 | 134 return OK; |
| 135 } | |
| 136 | |
| 137 void redraw_man_destroy(redraw_man_t *rdman) { | |
| 138 elmpool_free(rdman->coord_pool); | |
| 139 elmpool_free(rdman->geo_pool); | |
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140 elmpool_free(rdman->shnode_pool); |
| 13 | 141 if(rdman->dirty_coords) |
| 142 free(rdman->dirty_coords); | |
| 14 | 143 if(rdman->dirty_geos) |
| 144 free(rdman->dirty_geos); | |
| 12 | 145 } |
| 146 | |
| 147 | |
| 148 #define ASSERT(x) | |
| 149 /* | |
| 150 * Change transformation matrix | |
| 151 * - update aggregated transformation matrix | |
| 152 * - of coord_t object been changed. | |
| 153 * - of children coord_t objects. | |
| 154 * - redraw members of coord_t objects. | |
| 155 * - redraw shape objects they are overlaid with members. | |
| 156 * - find out overlaid shape objects. | |
| 157 * - geo_t of a coord_t object | |
| 158 * - can make finding more efficiency. | |
| 159 * - fill overlay geo_t objects of members. | |
| 160 * | |
| 161 * Change a shape object | |
| 162 * - redraw changed object. | |
| 163 * - redraw shape objects they are overlaid with changed object. | |
| 164 * - find out overlaid shape objects. | |
| 165 * | |
| 166 * That coord and geo of shape objects are setted by user code | |
| 167 * give user code a chance to collect coord and geo objects together | |
| 168 * and gain interest of higher cache hit rate. | |
| 169 */ | |
| 170 | |
| 171 /*! \brief Find out all affected shape objects. | |
| 172 * | |
| 173 * Find out all shape objects that are overalid with geo_t of | |
| 174 * a geometry changed object. | |
| 175 * | |
| 176 * Linear scan geo_t objects of all shape objects in all_shapes | |
| 177 * list of a redraw_man_t object. | |
| 178 */ | |
| 179 int rdman_find_overlaid_shapes(redraw_man_t *rdman, geo_t *geo, | |
| 180 geo_t ***overlays) { | |
| 181 int n_geos; | |
| 182 geo_t **geos; | |
| 183 geo_t *geo_cur; | |
| 184 int n_overlays; | |
| 185 geo_t **_overlays; | |
| 186 int i; | |
| 187 | |
| 188 n_geos = rdman->n_geos; | |
| 189 | |
| 190 geos = (geo_t **)malloc(sizeof(geo_t *) * n_geos); | |
| 191 if(geos == NULL) | |
| 192 return -1; | |
| 193 | |
| 194 _overlays = (geo_t **)malloc(sizeof(geo_t *) * n_geos); | |
| 195 if(geos == NULL) { | |
| 196 free(geos); | |
| 197 return -1; | |
| 198 } | |
| 199 | |
| 200 geo_cur = STAILQ_HEAD(rdman->all_geos); | |
| 201 for(i = 0; i < n_geos; i++) { | |
| 202 geos[i] = geo_cur; | |
| 203 geo_cur = STAILQ_NEXT(geo_t, next, geo_cur); | |
| 204 } | |
| 205 geo_mark_overlay(geo, n_geos, geos, &n_overlays, _overlays); | |
| 206 | |
| 207 free(geos); | |
| 208 *overlays = _overlays; | |
| 209 | |
| 210 return n_overlays; | |
| 211 } | |
| 212 | |
| 213 int rdman_add_shape(redraw_man_t *rdman, shape_t *shape, coord_t *coord) { | |
| 214 geo_t *geo; | |
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215 #ifdef GEO_ORDER |
| 13 | 216 geo_t *visit; |
| 217 unsigned int next_order; | |
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218 #endif |
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219 int r; |
| 12 | 220 |
| 221 geo = elmpool_elm_alloc(rdman->geo_pool); | |
| 222 if(geo == NULL) | |
| 223 return ERR; | |
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224 |
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225 geo_init(geo); |
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226 |
| 12 | 227 sh_attach_geo(shape, geo); |
| 228 STAILQ_INS_TAIL(rdman->all_geos, geo_t, next, geo); | |
| 229 rdman->n_geos++; | |
| 13 | 230 |
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231 #ifdef GEO_ORDER |
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232 /* TODO: remove order number. */ |
| 13 | 233 geo->order = ++rdman->next_geo_order; |
| 234 if(geo->order == 0) { | |
| 235 next_order = 0; | |
| 236 for(visit = STAILQ_HEAD(rdman->all_geos); | |
| 237 visit != NULL; | |
| 238 visit = STAILQ_NEXT(geo_t, next, visit)) | |
| 239 visit->order = ++next_order; | |
| 240 rdman->next_geo_order = next_order; | |
| 241 } | |
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242 #endif |
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243 |
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244 /* New one should be dirty to recompute it when drawing. */ |
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245 geo->flags |= GEF_DIRTY; |
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246 r = add_dirty_geo(rdman, geo); |
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247 if(r != OK) |
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248 return ERR; |
| 13 | 249 |
| 12 | 250 sh_attach_coord(shape, coord); |
| 251 | |
| 252 return OK; | |
| 253 } | |
| 254 | |
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255 /*! \brief Remove a shape object from redraw manager. |
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256 * |
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257 * TODO: redraw shape objects that overlaid with removed one. |
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258 */ |
| 12 | 259 int rdman_remove_shape(redraw_man_t *rdman, shape_t *shape) { |
| 260 STAILQ_REMOVE(rdman->all_geos, geo_t, next, shape->geo); | |
| 261 elmpool_elm_free(rdman->geo_pool, shape->geo); | |
| 262 sh_detach_geo(shape); | |
| 263 rdman->n_geos--; | |
| 264 sh_detach_coord(shape); | |
| 265 return OK; | |
| 266 } | |
| 267 | |
| 268 coord_t *rdman_coord_new(redraw_man_t *rdman, coord_t *parent) { | |
| 13 | 269 coord_t *coord, *root_coord; |
| 270 coord_t *visit; | |
| 12 | 271 |
| 272 coord = elmpool_elm_alloc(rdman->coord_pool); | |
| 273 if(coord == NULL) | |
| 274 return NULL; | |
| 275 | |
| 276 coord_init(coord, parent); | |
| 13 | 277 rdman->n_coords++; |
| 278 | |
| 279 coord->order = ++rdman->next_coord_order; | |
| 280 if(coord->order == 0) { | |
| 281 rdman->next_coord_order = 0; | |
| 282 root_coord = visit = rdman->root_coord; | |
| 283 /* skip root coord. */ | |
| 284 visit = preorder_coord_subtree(root_coord, visit); | |
| 285 while(visit) { | |
| 286 visit->order = ++rdman->next_coord_order; | |
| 287 visit = preorder_coord_subtree(root_coord, visit); | |
| 288 } | |
| 289 } | |
| 12 | 290 |
| 291 return coord; | |
| 292 } | |
| 293 | |
| 294 /*! \brief Free a coord of a redraw_man_t object. | |
| 295 * | |
| 296 * \param coord is a coord_t without children and members. | |
| 297 * \return 0 for successful, -1 for error. | |
| 298 */ | |
| 299 int rdman_coord_free(redraw_man_t *rdman, coord_t *coord) { | |
| 300 coord_t *parent; | |
| 301 | |
| 302 parent = coord->parent; | |
| 303 if(parent == NULL) | |
| 304 return ERR; | |
| 305 | |
| 306 if(STAILQ_HEAD(coord->members) != NULL) | |
| 307 return ERR; | |
| 308 | |
| 309 if(STAILQ_HEAD(coord->children) != NULL) | |
| 310 return ERR; | |
| 311 | |
| 312 STAILQ_REMOVE(parent->children, coord_t, sibling, coord); | |
| 313 elmpool_elm_free(rdman->coord_pool, coord); | |
| 13 | 314 rdman->n_coords--; |
| 315 | |
| 316 return OK; | |
| 317 } | |
| 318 | |
| 319 /*! \brief Mark a coord is changed. | |
| 320 * | |
| 321 * A changed coord_t object is marked as dirty and put | |
| 322 * into dirty_coords list. | |
| 323 */ | |
| 324 int rdman_coord_changed(redraw_man_t *rdman, coord_t *coord) { | |
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325 coord_t *child; |
| 13 | 326 int max_dirty_coords; |
| 327 int r; | |
| 328 | |
| 329 if(coord->flags & COF_DIRTY) | |
| 330 return OK; | |
| 331 | |
| 332 if(rdman->n_dirty_coords >= rdman->max_dirty_coords) { | |
| 333 /* Max of dirty_coords is not big enough. */ | |
| 334 max_dirty_coords = rdman->max_dirty_coords + 16; | |
| 335 | |
| 336 r = extend_memblk((void **)&rdman->dirty_coords, | |
| 337 sizeof(coord_t *) * rdman->n_dirty_coords, | |
| 338 sizeof(coord_t *) * max_dirty_coords); | |
| 339 rdman->max_dirty_coords = max_dirty_coords; | |
| 340 } | |
| 341 | |
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342 /* Make the coord and child coords dirty. */ |
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343 for(child = coord; |
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344 child != NULL; |
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345 child = preorder_coord_subtree(coord, child)) { |
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346 rdman->dirty_coords[rdman->n_dirty_coords++] = coord; |
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347 coord->flags |= COF_DIRTY; |
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348 } |
| 13 | 349 |
| 350 return OK; | |
| 351 } | |
| 352 | |
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353 static int _rdman_shape_changed(redraw_man_t *rdman, shape_t *shape) { |
| 13 | 354 geo_t *geo; |
| 355 int r; | |
| 356 | |
| 357 geo = shape->geo; | |
| 358 | |
| 359 if(geo->flags & GEF_DIRTY) | |
| 360 return OK; | |
| 361 | |
| 362 r = add_dirty_geo(rdman, geo); | |
| 363 if(r == ERR) | |
| 364 return ERR; | |
| 365 geo->flags |= GEF_DIRTY; | |
| 12 | 366 |
| 367 return OK; | |
| 368 } | |
| 369 | |
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370 /*! \brief Mark a shape is changed. |
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371 * |
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372 * The geo_t object of a changed shape is mark as dirty and |
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373 * put into dirty_geos list. |
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374 */ |
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375 int rdman_shape_changed(redraw_man_t *rdman, shape_t *shape) { |
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376 return _rdman_shape_changed(rdman, shape); |
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377 } |
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378 |
| 29 | 379 int rdman_paint_changed(redraw_man_t *rdman, paint_t *paint) { |
| 380 shnode_t *node; | |
| 381 int r; | |
| 382 | |
| 383 for(node = STAILQ_HEAD(paint->members); | |
| 384 node != NULL; | |
| 385 node = STAILQ_NEXT(shnode_t, next, node)) { | |
| 386 r = _rdman_shape_changed(rdman, node->shape); | |
| 387 if(r != OK) | |
| 388 return ERR; | |
| 389 } | |
| 390 return OK; | |
| 391 } | |
| 392 | |
| 28 | 393 /* Clean dirties */ |
| 394 | |
| 395 static void clean_shape(shape_t *shape) { | |
| 396 switch(shape->sh_type) { | |
| 397 case SHT_PATH: | |
| 398 sh_path_transform(shape); | |
| 399 break; | |
| 400 case SHT_TEXT: | |
| 401 sh_text_transform(shape); | |
| 402 break; | |
| 403 #ifdef UNITTEST | |
| 404 default: | |
| 405 sh_dummy_transform(shape); | |
| 406 break; | |
| 407 #endif /* UNITTEST */ | |
| 408 } | |
| 409 shape->geo->flags &= ~GEF_DIRTY; | |
| 410 } | |
| 411 | |
| 412 static int clean_coord(coord_t *coord) { | |
| 413 shape_t *shape; | |
| 414 geo_t *geo; | |
| 415 co_aix (*poses)[2]; | |
| 416 int cnt, pos_cnt; | |
| 417 | |
| 418 compute_aggr_of_coord(coord); | |
| 419 | |
| 420 /* Clean member shapes. */ | |
| 421 cnt = 0; | |
| 422 for(shape = STAILQ_HEAD(coord->members); | |
| 423 shape != NULL; | |
| 424 shape = STAILQ_NEXT(shape_t, coord_mem_next, shape)) { | |
| 425 geo = shape->geo; | |
| 426 SWAP(geo->cur_area, geo->last_area, area_t *); | |
| 427 clean_shape(shape); | |
| 428 cnt++; | |
| 429 } | |
| 430 | |
| 431 /* Compute area of the coord. */ | |
| 432 poses = (co_aix (*)[2])malloc(sizeof(co_aix [2]) * 2 * cnt); | |
| 433 if(poses == NULL) | |
| 434 return ERR; | |
| 435 | |
| 436 pos_cnt = 0; | |
| 437 for(shape = STAILQ_HEAD(coord->members); | |
| 438 shape != NULL; | |
| 439 shape = STAILQ_NEXT(shape_t, coord_mem_next, shape)) { | |
| 440 geo = shape->geo; | |
| 441 | |
| 442 area_to_positions(geo->cur_area, poses + pos_cnt); | |
| 443 pos_cnt += 2; | |
| 444 } | |
| 445 | |
| 446 SWAP(coord->cur_area, coord->last_area, area_t *); | |
| 447 area_init(coord->cur_area, pos_cnt, poses); | |
| 448 free(poses); | |
| 449 | |
| 450 coord->flags &= ~COF_DIRTY; | |
| 451 | |
| 452 return OK; | |
| 453 } | |
| 454 | |
| 455 static int clean_rdman_coords(redraw_man_t *rdman) { | |
| 456 coord_t *coord; | |
| 457 coord_t **dirty_coords; | |
| 458 int n_dirty_coords; | |
| 459 int i, r; | |
| 460 | |
| 461 n_dirty_coords = rdman->n_dirty_coords; | |
| 462 if(n_dirty_coords > 0) { | |
| 463 dirty_coords = rdman->dirty_coords; | |
| 464 _insert_sort((void **)dirty_coords, n_dirty_coords, | |
| 465 OFFSET(coord_t, order)); | |
| 466 for(i = 0; i < n_dirty_coords; i++) { | |
| 467 coord = dirty_coords[i]; | |
| 468 if(!(coord->flags & COF_DIRTY)) | |
| 469 continue; | |
| 470 r = clean_coord(coord); | |
| 471 if(r != OK) | |
| 472 return ERR; | |
| 473 /* These two steps can be avoided for drawing all. */ | |
| 474 add_dirty_area(rdman, &coord->areas[0]); | |
| 475 add_dirty_area(rdman, &coord->areas[1]); | |
| 476 } | |
| 477 rdman->n_dirty_coords = 0; | |
| 478 } | |
| 479 return OK; | |
| 480 } | |
| 481 | |
| 482 static int clean_rdman_geos(redraw_man_t *rdman) { | |
| 483 int i; | |
| 484 int n_dirty_geos; | |
| 485 geo_t **dirty_geos; | |
| 486 geo_t *visit_geo; | |
| 487 | |
| 488 n_dirty_geos = rdman->n_dirty_geos; | |
| 489 if(n_dirty_geos > 0) { | |
| 490 dirty_geos = rdman->dirty_geos; | |
| 491 for(i = 0; i < n_dirty_geos; i++) { | |
| 492 visit_geo = dirty_geos[i]; | |
| 493 if(!(visit_geo->flags & GEF_DIRTY)) | |
| 494 continue; | |
| 495 | |
| 496 SWAP(visit_geo->cur_area, visit_geo->last_area, area_t *); | |
| 497 clean_shape(visit_geo->shape); | |
| 498 add_dirty_area(rdman, visit_geo->cur_area); | |
| 499 add_dirty_area(rdman, visit_geo->last_area); | |
| 500 } | |
| 501 rdman->n_dirty_geos = 0; | |
| 502 } | |
| 503 | |
| 504 return OK; | |
| 505 } | |
| 506 | |
| 29 | 507 static int clean_rdman_dirties(redraw_man_t *rdman) { |
| 508 int r; | |
| 509 | |
| 510 r = clean_rdman_coords(rdman); | |
| 511 if(r != OK) | |
| 512 return ERR; | |
| 513 | |
| 514 r = clean_rdman_geos(rdman); | |
| 515 if(r != OK) | |
| 516 return ERR; | |
| 517 | |
| 518 return OK; | |
| 519 } | |
| 520 | |
| 521 | |
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522 /* Drawing and Redrawing |
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523 * ============================================================ |
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524 */ |
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525 |
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526 #ifndef UNITTEST |
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527 static void set_shape_stroke_param(shape_t *shape, cairo_t *cr) { |
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528 cairo_set_line_width(cr, shape->stroke_width); |
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529 } |
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530 #else |
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531 static void set_shape_stroke_param(shape_t *shape, cairo_t *cr) { |
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532 } |
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533 #endif |
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534 |
| 22 | 535 static void draw_shape(redraw_man_t *rdman, shape_t *shape) { |
| 536 paint_t *fill, *stroke; | |
|
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537 |
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538 fill = shape->fill; |
| 19 | 539 if(fill) { |
|
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540 fill->prepare(fill, rdman->cr); |
| 19 | 541 switch(shape->sh_type) { |
| 542 case SHT_PATH: | |
|
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543 sh_path_fill(shape, rdman->cr); |
| 19 | 544 break; |
| 27 | 545 case SHT_TEXT: |
| 546 sh_text_fill(shape, rdman->cr); | |
| 547 break; | |
|
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548 #ifdef UNITTEST |
| 19 | 549 default: |
|
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550 sh_dummy_fill(shape, rdman->cr); |
| 19 | 551 break; |
|
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552 #endif /* UNITTEST */ |
| 19 | 553 } |
|
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554 } |
| 22 | 555 stroke = shape->stroke; |
| 556 if(stroke) { | |
| 557 stroke->prepare(stroke, rdman->cr); | |
|
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558 set_shape_stroke_param(shape, rdman->cr); |
| 22 | 559 switch(shape->sh_type) { |
| 560 case SHT_PATH: | |
| 561 sh_path_stroke(shape, rdman->cr); | |
| 562 break; | |
| 27 | 563 case SHT_TEXT: |
| 564 sh_text_stroke(shape, rdman->cr); | |
| 565 break; | |
| 22 | 566 #ifdef UNITTEST |
| 567 default: | |
| 568 /* sh_dummy_fill(shape, rdman->cr); */ | |
| 569 break; | |
| 570 #endif /* UNITTEST */ | |
| 571 } | |
| 572 } | |
| 13 | 573 } |
| 574 | |
|
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575 #ifndef UNITTEST |
|
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576 static void clean_canvas(cairo_t *cr) { |
|
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577 /* TODO: clean to background color. */ |
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578 cairo_set_source_rgb(cr, 0, 0, 0); |
|
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579 cairo_paint(cr); |
|
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580 } |
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581 |
|
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582 static void make_clip(cairo_t *cr, int n_dirty_areas, |
|
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583 area_t **dirty_areas) { |
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584 int i; |
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585 area_t *area; |
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586 |
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587 for(i = 0; i < n_dirty_areas; i++) { |
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588 area = dirty_areas[i]; |
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589 cairo_rectangle(cr, area->x, area->y, area->w, area->h); |
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590 } |
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591 cairo_clip(cr); |
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592 } |
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593 |
|
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594 static void reset_clip(redraw_man_t *rdman) { |
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595 cairo_reset_clip(rdman->cr); |
|
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596 cairo_reset_clip(rdman->backend); |
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597 } |
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598 |
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599 static void copy_cr_2_backend(redraw_man_t *rdman, int n_dirty_areas, |
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600 area_t **dirty_areas) { |
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601 if(n_dirty_areas) |
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602 make_clip(rdman->backend, n_dirty_areas, dirty_areas); |
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603 |
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604 cairo_paint(rdman->backend); |
|
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605 } |
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606 #else /* UNITTEST */ |
|
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607 static void clean_canvas(cairo_t *cr) { |
|
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608 } |
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609 |
|
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610 static void reset_clip(redraw_man_t *rdman) { |
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611 } |
|
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612 |
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613 static void copy_cr_2_backend(redraw_man_t *rdman, int n_dirty_areas, |
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614 area_t **dirty_areas) { |
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615 } |
|
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616 #endif /* UNITTEST */ |
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617 |
| 22 | 618 static void draw_shapes_in_areas(redraw_man_t *rdman, |
|
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619 int n_areas, |
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620 area_t **areas) { |
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621 geo_t *visit_geo; |
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622 int i; |
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623 |
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624 for(visit_geo = STAILQ_HEAD(rdman->all_geos); |
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625 visit_geo != NULL; |
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626 visit_geo = STAILQ_NEXT(geo_t, next, visit_geo)) { |
|
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627 if(visit_geo->flags & GEF_DIRTY) |
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628 clean_shape(visit_geo->shape); |
|
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629 for(i = 0; i < n_areas; i++) { |
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630 if(is_overlay(visit_geo->cur_area, areas[i])) { |
| 22 | 631 draw_shape(rdman, visit_geo->shape); |
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632 break; |
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633 } |
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634 } |
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635 } |
| 13 | 636 } |
| 637 | |
|
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638 |
| 13 | 639 /*! \brief Re-draw all changed shapes or shapes affected by changed coords. |
| 640 * | |
| 641 * A coord object has a geo to keep track the range that it's members will | |
| 642 * draw on. Geo of a coord should be recomputed when the coord is changed. | |
| 643 * Geo of a coord used to accelerate finding overlay shape objects of | |
| 644 * a specified geo. A coord object also must be recomputed when one of | |
| 645 * it's members is changed. | |
| 646 * | |
| 647 * New and old geo values of a coord object that is recomputed for | |
| 648 * changing of it-self must be used to find overlay shape objects. | |
| 649 * New and old geo values of a shape should also be used to find | |
| 650 * overlay shape objects, too. If a shape's coord is changed, shape's | |
| 651 * geo object is not used to find overlay shape objects any more. | |
| 652 * | |
| 653 * steps: | |
| 654 * - update chagned coord objects | |
| 14 | 655 * - recompute area for changed coord objects |
| 13 | 656 * - recompute geo for members shape objects |
| 14 | 657 * - clear dirty of geo for members to prevent from |
| 658 * recomputing for change of shape objects. | |
| 659 * - add old and new area value to list of dirty areas. | |
| 13 | 660 * - recompute geo for changed shape objects |
| 14 | 661 * - only if a shape object is dirty. |
| 662 * - put new and old value of area of geo to list of dirty areas. | |
| 663 * - Scan all shapes and redraw shapes overlaid with dirty areas. | |
| 13 | 664 * |
| 14 | 665 * dirty flag of coord objects is cleared after update. |
|
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666 * dirty flag of geo objects is also cleared after recomputing. |
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667 * Clean dirty flag can prevent redundant computing for geo and |
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668 * corod objects. |
| 14 | 669 * |
| 13 | 670 */ |
| 671 int rdman_redraw_changed(redraw_man_t *rdman) { | |
| 28 | 672 int r; |
| 13 | 673 int n_dirty_areas; |
| 14 | 674 area_t **dirty_areas; |
| 13 | 675 |
| 29 | 676 r = clean_rdman_dirties(rdman); |
|
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677 if(r != OK) |
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678 return ERR; |
| 13 | 679 |
|
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680 n_dirty_areas = rdman->n_dirty_areas; |
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681 dirty_areas = rdman->dirty_areas; |
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682 if(n_dirty_areas > 0) { |
|
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|
683 clean_canvas(rdman->cr); |
| 22 | 684 draw_shapes_in_areas(rdman, n_dirty_areas, dirty_areas); |
|
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685 copy_cr_2_backend(rdman, rdman->n_dirty_areas, rdman->dirty_areas); |
|
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686 rdman->n_dirty_areas = 0; |
|
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687 reset_clip(rdman); |
|
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688 } |
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689 rdman->n_dirty_areas = 0; |
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690 |
|
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691 return OK; |
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692 } |
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|
693 |
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694 int rdman_redraw_all(redraw_man_t *rdman) { |
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695 geo_t *geo; |
| 29 | 696 int r; |
|
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697 |
| 29 | 698 r = clean_rdman_dirties(rdman); |
| 699 if(r != OK) | |
| 700 return ERR; | |
|
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701 |
|
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702 for(geo = STAILQ_HEAD(rdman->all_geos); |
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703 geo != NULL; |
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704 geo = STAILQ_NEXT(geo_t, next, geo)) { |
| 22 | 705 draw_shape(rdman, geo->shape); |
| 13 | 706 } |
|
24
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parents:
23
diff
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|
707 copy_cr_2_backend(rdman, 0, NULL); |
| 29 | 708 rdman->n_dirty_areas = 0; |
| 13 | 709 |
| 710 return OK; | |
| 12 | 711 } |
| 712 | |
|
18
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Support solid color paint for fill.
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17
diff
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|
713 shnode_t *shnode_new(redraw_man_t *rdman, shape_t *shape) { |
|
0f3baa488a62
Support solid color paint for fill.
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diff
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|
714 shnode_t *node; |
|
0f3baa488a62
Support solid color paint for fill.
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17
diff
changeset
|
715 |
|
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Support solid color paint for fill.
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diff
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|
716 node = (shnode_t *)elmpool_elm_alloc(rdman->shnode_pool); |
|
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Support solid color paint for fill.
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diff
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|
717 if(node) { |
|
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Support solid color paint for fill.
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diff
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|
718 node->shape = shape; |
|
0f3baa488a62
Support solid color paint for fill.
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diff
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|
719 node->next = NULL; |
|
0f3baa488a62
Support solid color paint for fill.
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diff
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|
720 } |
|
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Support solid color paint for fill.
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parents:
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diff
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|
721 return node; |
|
0f3baa488a62
Support solid color paint for fill.
Thinker K.F. Li <thinker@branda.to>
parents:
17
diff
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|
722 } |
|
0f3baa488a62
Support solid color paint for fill.
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parents:
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|
723 |
| 12 | 724 /* |
|
16
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A simple animation using rdman_redraw_changed().
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parents:
15
diff
changeset
|
725 * Dirty of geo |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
15
diff
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|
726 * A geo is dirty when any of the shape, size or positions is changed. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
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diff
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|
727 * It's geo and positions should be recomputed before drawing. So, |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
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|
728 * dirty geos are marked as dirty and put into dirty_geos list. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
15
diff
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|
729 * The list is inspected before drawing to make sure the right shape, |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
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diff
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|
730 * size, and positions. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
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changeset
|
731 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
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|
732 * Dirty of coord |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
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|
733 * A coord is dirty when it's transformation matrix being changed. |
|
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A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
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|
734 * Dirty coords are marked as dirty and put into dirty_coords list. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
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|
735 * Once a coord is dirty, every member geos of it are also dirty. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
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|
736 * Because, their shape, size and positions will be changed. But, |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
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|
737 * they are not marked as dirty and put into dirty_geos list, since |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
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738 * all these member geos will be recomputed for computing new current |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
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|
739 * area of the coord. The changes of a coord also affect child |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
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|
740 * coords. Once parent is dirty, all children are also dirty for |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
15
diff
changeset
|
741 * their aggregate matrix out of date. Dirty coords should be |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
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742 * clean in preorder of tree traversal. The dirty_coords list |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
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|
743 * are sorted to keep the order before cleaning. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
15
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|
744 * Whenever a coord is marked dirty and put into dirty_coords list, |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
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|
745 * all it's children should also be marked and put. |
|
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A simple animation using rdman_redraw_changed().
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parents:
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|
746 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
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|
747 * The procedure of clean coords comprises recomputing aggregate |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
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|
748 * tranform matrix and area where members spreading in. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
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|
749 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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|
750 * The list is inspected before drawing to recompute new shape, size, |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
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changeset
|
751 * and positions of member geos of coords in the list. The drity |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
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|
752 * flag of member geos will be clean. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
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|
753 * |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
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parents:
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|
754 * Clean coords should be performed before clean geos, since clean |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
15
diff
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|
755 * coords will also clean member geos. |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
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diff
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|
756 */ |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
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diff
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|
757 |
|
e17e12b112c4
A simple animation using rdman_redraw_changed().
Thinker K.F. Li <thinker@branda.to>
parents:
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diff
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|
758 /* |
| 12 | 759 * When redraw an area, the affected elements may also extend to |
| 760 * outside of the area. Since the order of drawing will change | |
| 761 * the result, it will infect more and more elements to keep | |
| 762 * drawing order althrough they are overlaid directly with | |
| 763 * specified area. | |
| 764 * | |
| 765 * To fix the problem, we don't extend the set of redrawing to | |
| 766 * elements they are not overliad directly. The redrawing is | |
| 767 * performed on a temporary surface, clipped to fit the area, and | |
| 768 * update only specified area on the destinate surface. | |
| 769 */ | |
| 770 | |
| 771 /* | |
| 772 * To accelerate speed of transformation, when a matrix changed, | |
| 773 * transformation should be aggregated and computed in a loop. | |
| 774 * It can get intereset of higher hit rate of cache. | |
| 775 * - shapes prvoide list of positions needed to be transformed. | |
| 776 * - redraw_man transforms positions from shapes. | |
| 777 * - shapes drawing with result of transforms. | |
| 778 * - shapes should be called to give them a chance to update geometries. | |
| 779 */ | |
| 780 | |
| 13 | 781 /* |
| 782 * functions: | |
| 783 * - redraw all | |
| 784 * - redraw changed | |
| 785 */ | |
| 786 | |
| 12 | 787 #ifdef UNITTEST |
| 788 | |
| 789 #include <CUnit/Basic.h> | |
| 19 | 790 #include "paint.h" |
| 12 | 791 |
| 792 struct _sh_dummy { | |
| 793 shape_t shape; | |
| 794 co_aix x, y; | |
| 795 co_aix w, h; | |
|
17
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Unittest for rdman_redraw_changed().
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|
796 int draw_cnt; |
| 12 | 797 }; |
| 798 | |
| 799 shape_t *sh_dummy_new(co_aix x, co_aix y, co_aix w, co_aix h) { | |
| 800 sh_dummy_t *dummy; | |
| 801 | |
| 802 dummy = (sh_dummy_t *)malloc(sizeof(sh_dummy_t)); | |
| 803 if(dummy == NULL) | |
| 804 return NULL; | |
| 805 | |
|
17
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Unittest for rdman_redraw_changed().
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806 memset(dummy, 0, sizeof(sh_dummy_t)); |
|
41f0907b27ac
Unittest for rdman_redraw_changed().
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|
807 |
| 12 | 808 dummy->x = x; |
| 809 dummy->y = y; | |
| 810 dummy->w = w; | |
| 811 dummy->h = h; | |
|
17
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Unittest for rdman_redraw_changed().
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|
812 dummy->draw_cnt = 0; |
| 12 | 813 |
| 814 return (shape_t *)dummy; | |
| 815 } | |
| 816 | |
| 817 void sh_dummy_free(shape_t *sh) { | |
| 818 free(sh); | |
| 819 } | |
| 820 | |
| 821 void sh_dummy_transform(shape_t *shape) { | |
| 822 sh_dummy_t *dummy = (sh_dummy_t *)shape; | |
| 823 co_aix poses[2][2]; | |
| 824 co_aix x1, y1, x2, y2; | |
| 825 | |
| 826 if(shape->geo && shape->coord) { | |
| 827 x1 = dummy->x; | |
| 828 y1 = dummy->y; | |
| 829 x2 = x1 + dummy->w; | |
| 830 y2 = y1 + dummy->h; | |
| 831 | |
| 832 coord_trans_pos(shape->coord, &x1, &y1); | |
| 833 coord_trans_pos(shape->coord, &x2, &y2); | |
| 834 poses[0][0] = x1; | |
| 835 poses[0][1] = y1; | |
| 836 poses[1][0] = x2; | |
| 837 poses[1][1] = y2; | |
| 838 | |
|
17
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Unittest for rdman_redraw_changed().
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|
839 if(shape->geo) |
|
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840 geo_from_positions(shape->geo, 2, poses); |
| 12 | 841 } |
| 842 } | |
| 843 | |
|
20
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|
844 void sh_dummy_fill(shape_t *shape, cairo_t *cr) { |
|
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845 sh_dummy_t *dummy; |
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|
846 |
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Unittest for rdman_redraw_changed().
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847 dummy = (sh_dummy_t *)shape; |
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|
848 dummy->draw_cnt++; |
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Unittest for rdman_redraw_changed().
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|
849 } |
|
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Unittest for rdman_redraw_changed().
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|
850 |
| 19 | 851 static void dummy_paint_prepare(paint_t *paint, cairo_t *cr) { |
| 852 } | |
| 853 | |
| 854 static void dummy_paint_free(paint_t *paint) { | |
| 855 if(paint) | |
| 856 free(paint); | |
| 857 } | |
| 858 | |
| 859 paint_t *dummy_paint_new(redraw_man_t *rdman) { | |
| 860 paint_t *paint; | |
| 861 | |
| 862 paint = (paint_t *)malloc(sizeof(paint_t)); | |
| 863 if(paint == NULL) | |
| 864 return NULL; | |
| 865 | |
| 866 paint_init(paint, dummy_paint_prepare, dummy_paint_free); | |
| 867 | |
| 868 return paint; | |
| 869 } | |
| 870 | |
| 12 | 871 void test_rdman_find_overlaid_shapes(void) { |
| 872 redraw_man_t rdman; | |
| 873 geo_t geo; | |
| 874 coord_t *coords[3]; | |
| 875 shape_t *shapes[5]; | |
| 876 geo_t **overlays; | |
| 13 | 877 co_aix pos[2][2]; |
| 12 | 878 int n; |
| 879 int i; | |
| 880 | |
|
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881 redraw_man_init(&rdman, NULL, NULL); |
| 12 | 882 coords[0] = rdman.root_coord; |
| 883 for(i = 1; i < 3; i++) { | |
| 884 coords[i] = rdman_coord_new(&rdman, rdman.root_coord); | |
| 885 } | |
| 886 for(i = 0; i < 5; i++) { | |
| 887 shapes[i] = sh_dummy_new(10 + i * 30, 10 + i * 20, 25, 15); | |
| 888 CU_ASSERT(shapes[i] != NULL); | |
| 889 } | |
| 890 for(i = 0; i < 3; i++) | |
| 891 rdman_add_shape(&rdman, shapes[i], coords[1]); | |
| 892 for(i = 3; i < 5; i++) | |
| 893 rdman_add_shape(&rdman, shapes[i], coords[2]); | |
| 894 | |
| 895 coords[1]->matrix[0] = 2; | |
| 896 coords[0]->matrix[4] = 2; | |
| 897 | |
| 898 update_aggr_matrix(coords[0]); | |
| 899 for(i = 0; i < 5; i++) | |
| 900 sh_dummy_transform(shapes[i]); | |
| 901 | |
| 13 | 902 pos[0][0] = 100; |
| 903 pos[0][1] = 120; | |
| 904 pos[1][0] = 100 + 140; | |
| 905 pos[1][1] = 120 + 40; | |
|
17
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|
906 geo_init(&geo); |
|
41f0907b27ac
Unittest for rdman_redraw_changed().
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907 geo_from_positions(&geo, 2, pos); |
| 12 | 908 |
| 909 n = rdman_find_overlaid_shapes(&rdman, &geo, &overlays); | |
| 910 CU_ASSERT(n == 2); | |
| 911 CU_ASSERT(overlays != NULL); | |
| 912 CU_ASSERT(overlays[0] == shapes[2]->geo); | |
| 913 CU_ASSERT(overlays[1] == shapes[3]->geo); | |
| 914 | |
| 915 free(overlays); | |
| 916 for(i = 0; i < 5; i++) | |
| 917 sh_dummy_free(shapes[i]); | |
| 918 | |
| 919 redraw_man_destroy(&rdman); | |
| 920 } | |
| 921 | |
|
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922 void test_rdman_redraw_changed(void) { |
|
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923 coord_t *coords[3]; |
|
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Unittest for rdman_redraw_changed().
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924 shape_t *shapes[3]; |
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Unittest for rdman_redraw_changed().
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925 sh_dummy_t **dummys; |
| 19 | 926 paint_t *paint; |
|
17
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|
927 redraw_man_t *rdman; |
|
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928 redraw_man_t _rdman; |
|
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Unittest for rdman_redraw_changed().
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|
929 int i; |
|
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Unittest for rdman_redraw_changed().
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930 |
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Unittest for rdman_redraw_changed().
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|
931 dummys = (sh_dummy_t **)shapes; |
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Unittest for rdman_redraw_changed().
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932 |
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Unittest for rdman_redraw_changed().
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|
933 rdman = &_rdman; |
|
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934 redraw_man_init(rdman, NULL, NULL); |
| 19 | 935 paint = dummy_paint_new(rdman); |
|
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|
936 for(i = 0; i < 3; i++) { |
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41f0907b27ac
Unittest for rdman_redraw_changed().
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937 shapes[i] = sh_dummy_new(0, 0, 50, 50); |
| 19 | 938 rdman_paint_fill(rdman, paint, shapes[i]); |
|
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Unittest for rdman_redraw_changed().
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|
939 coords[i] = rdman_coord_new(rdman, rdman->root_coord); |
|
41f0907b27ac
Unittest for rdman_redraw_changed().
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|
940 coords[i]->matrix[2] = 10 + i * 100; |
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941 coords[i]->matrix[5] = 10 + i * 100; |
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942 rdman_coord_changed(rdman, coords[i]); |
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943 rdman_add_shape(rdman, shapes[i], coords[i]); |
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944 } |
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945 rdman_redraw_all(rdman); |
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946 CU_ASSERT(dummys[0]->draw_cnt == 1); |
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947 CU_ASSERT(dummys[1]->draw_cnt == 1); |
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948 CU_ASSERT(dummys[2]->draw_cnt == 1); |
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949 |
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950 coords[2]->matrix[2] = 100; |
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951 coords[2]->matrix[5] = 100; |
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952 rdman_coord_changed(rdman, coords[2]); |
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953 rdman_redraw_changed(rdman); |
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954 |
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955 CU_ASSERT(dummys[0]->draw_cnt == 1); |
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956 CU_ASSERT(dummys[1]->draw_cnt == 2); |
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957 CU_ASSERT(dummys[2]->draw_cnt == 2); |
| 19 | 958 |
| 959 paint->free(paint); | |
| 960 redraw_man_destroy(rdman); | |
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961 } |
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962 |
| 12 | 963 CU_pSuite get_redraw_man_suite(void) { |
| 964 CU_pSuite suite; | |
| 965 | |
| 966 suite = CU_add_suite("Suite_redraw_man", NULL, NULL); | |
| 967 CU_ADD_TEST(suite, test_rdman_find_overlaid_shapes); | |
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968 CU_ADD_TEST(suite, test_rdman_redraw_changed); |
| 12 | 969 |
| 970 return suite; | |
| 971 } | |
| 972 | |
| 973 #endif /* UNITTEST */ |