1 /*
2 * Cogl
3 *
4 * A Low Level GPU Graphics and Utilities API
5 *
6 * Copyright (C) 2010,2013 Intel Corporation.
7 *
8 * Permission is hereby granted, free of charge, to any person
9 * obtaining a copy of this software and associated documentation
10 * files (the "Software"), to deal in the Software without
11 * restriction, including without limitation the rights to use, copy,
12 * modify, merge, publish, distribute, sublicense, and/or sell copies
13 * of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be
17 * included in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
23 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
24 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
25 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 * SOFTWARE.
27 *
28 * Authors:
29 * Robert Bragg <robert@linux.intel.com>
30 */
31
32 #ifdef HAVE_CONFIG_H
33 #include "config.h"
34 #endif
35
36 #include "cogl-util.h"
37 #include "cogl-object.h"
38 #include "cogl-context-private.h"
39
40 #include "cogl-path-types.h"
41
42 #include "cogl2-path-functions.h"
43
44 #undef cogl_path_set_fill_rule
45 #undef cogl_path_get_fill_rule
46 #undef cogl_path_fill
47 #undef cogl_path_fill_preserve
48 #undef cogl_path_stroke
49 #undef cogl_path_stroke_preserve
50 #undef cogl_path_move_to
51 #undef cogl_path_rel_move_to
52 #undef cogl_path_line_to
53 #undef cogl_path_rel_line_to
54 #undef cogl_path_close
55 #undef cogl_path_new
56 #undef cogl_path_line
57 #undef cogl_path_polyline
58 #undef cogl_path_polygon
59 #undef cogl_path_rectangle
60 #undef cogl_path_arc
61 #undef cogl_path_ellipse
62 #undef cogl_path_round_rectangle
63 #undef cogl_path_curve_to
64 #undef cogl_path_rel_curve_to
65 #undef cogl_clip_push_from_path
66
67 #include "cogl1-path-functions.h"
68
69 #include <string.h>
70 #include <math.h>
71
72 static void
ensure_current_path(CoglContext * ctx)73 ensure_current_path (CoglContext *ctx)
74 {
75 if (ctx->current_path == NULL)
76 ctx->current_path = cogl2_path_new ();
77 }
78
79 static CoglPath *
get_current_path(CoglContext * ctx)80 get_current_path (CoglContext *ctx)
81 {
82 ensure_current_path (ctx);
83 return ctx->current_path;
84 }
85
86 void
cogl_path_set_fill_rule(CoglPathFillRule fill_rule)87 cogl_path_set_fill_rule (CoglPathFillRule fill_rule)
88 {
89 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
90
91 cogl2_path_set_fill_rule (get_current_path (ctx), fill_rule);
92 }
93
94 CoglPathFillRule
cogl_path_get_fill_rule(void)95 cogl_path_get_fill_rule (void)
96 {
97 _COGL_GET_CONTEXT (ctx, COGL_PATH_FILL_RULE_EVEN_ODD);
98
99 return cogl2_path_get_fill_rule (get_current_path (ctx));
100 }
101
102 void
cogl_path_fill(void)103 cogl_path_fill (void)
104 {
105 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
106
107 cogl2_path_fill (get_current_path (ctx));
108
109 if (ctx->current_path)
110 cogl_object_unref (ctx->current_path);
111 ctx->current_path = cogl2_path_new ();
112 }
113
114 void
cogl_path_fill_preserve(void)115 cogl_path_fill_preserve (void)
116 {
117 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
118
119 cogl2_path_fill (get_current_path (ctx));
120 }
121
122 void
cogl_path_stroke(void)123 cogl_path_stroke (void)
124 {
125 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
126
127 cogl2_path_stroke (get_current_path (ctx));
128
129 if (ctx->current_path)
130 cogl_object_unref (ctx->current_path);
131 ctx->current_path = cogl2_path_new ();
132 }
133
134 void
cogl_path_stroke_preserve(void)135 cogl_path_stroke_preserve (void)
136 {
137 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
138
139 cogl2_path_stroke (get_current_path (ctx));
140 }
141
142 void
cogl_path_move_to(float x,float y)143 cogl_path_move_to (float x,
144 float y)
145 {
146 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
147
148 cogl2_path_move_to (get_current_path (ctx), x, y);
149 }
150
151 void
cogl_path_rel_move_to(float x,float y)152 cogl_path_rel_move_to (float x,
153 float y)
154 {
155 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
156
157 cogl2_path_rel_move_to (get_current_path (ctx), x, y);
158 }
159
160 void
cogl_path_line_to(float x,float y)161 cogl_path_line_to (float x,
162 float y)
163 {
164 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
165
166 cogl2_path_line_to (get_current_path (ctx), x, y);
167 }
168
169 void
cogl_path_rel_line_to(float x,float y)170 cogl_path_rel_line_to (float x,
171 float y)
172 {
173 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
174
175 cogl2_path_rel_line_to (get_current_path (ctx), x, y);
176 }
177
178 void
cogl_path_close(void)179 cogl_path_close (void)
180 {
181 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
182
183 cogl2_path_close (get_current_path (ctx));
184 }
185
186 void
cogl_path_new(void)187 cogl_path_new (void)
188 {
189 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
190
191 if (ctx->current_path)
192 cogl_object_unref (ctx->current_path);
193 ctx->current_path = cogl2_path_new ();
194 }
195
196 void
cogl_path_line(float x_1,float y_1,float x_2,float y_2)197 cogl_path_line (float x_1,
198 float y_1,
199 float x_2,
200 float y_2)
201 {
202 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
203
204 cogl2_path_line (get_current_path (ctx), x_1, y_1, x_2, y_2);
205 }
206
207 void
cogl_path_polyline(const float * coords,int num_points)208 cogl_path_polyline (const float *coords,
209 int num_points)
210 {
211 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
212
213 cogl2_path_polyline (get_current_path (ctx), coords, num_points);
214 }
215
216 void
cogl_path_polygon(const float * coords,int num_points)217 cogl_path_polygon (const float *coords,
218 int num_points)
219 {
220 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
221
222 cogl2_path_polygon (get_current_path (ctx), coords, num_points);
223 }
224
225 void
cogl_path_rectangle(float x_1,float y_1,float x_2,float y_2)226 cogl_path_rectangle (float x_1,
227 float y_1,
228 float x_2,
229 float y_2)
230 {
231 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
232
233 cogl2_path_rectangle (get_current_path (ctx), x_1, y_1, x_2, y_2);
234 }
235
236 void
cogl_path_arc(float center_x,float center_y,float radius_x,float radius_y,float angle_1,float angle_2)237 cogl_path_arc (float center_x,
238 float center_y,
239 float radius_x,
240 float radius_y,
241 float angle_1,
242 float angle_2)
243 {
244 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
245
246 cogl2_path_arc (get_current_path (ctx),
247 center_x,
248 center_y,
249 radius_x,
250 radius_y,
251 angle_1,
252 angle_2);
253 }
254
255 void
cogl_path_ellipse(float center_x,float center_y,float radius_x,float radius_y)256 cogl_path_ellipse (float center_x,
257 float center_y,
258 float radius_x,
259 float radius_y)
260 {
261 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
262
263 cogl2_path_ellipse (get_current_path (ctx),
264 center_x,
265 center_y,
266 radius_x,
267 radius_y);
268 }
269
270 void
cogl_path_round_rectangle(float x_1,float y_1,float x_2,float y_2,float radius,float arc_step)271 cogl_path_round_rectangle (float x_1,
272 float y_1,
273 float x_2,
274 float y_2,
275 float radius,
276 float arc_step)
277 {
278 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
279
280 cogl2_path_round_rectangle (get_current_path (ctx),
281 x_1, y_1, x_2, y_2, radius, arc_step);
282 }
283
284 void
cogl_path_curve_to(float x_1,float y_1,float x_2,float y_2,float x_3,float y_3)285 cogl_path_curve_to (float x_1,
286 float y_1,
287 float x_2,
288 float y_2,
289 float x_3,
290 float y_3)
291 {
292 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
293
294 cogl2_path_curve_to (get_current_path (ctx),
295 x_1, y_1, x_2, y_2, x_3, y_3);
296 }
297
298 void
cogl_path_rel_curve_to(float x_1,float y_1,float x_2,float y_2,float x_3,float y_3)299 cogl_path_rel_curve_to (float x_1,
300 float y_1,
301 float x_2,
302 float y_2,
303 float x_3,
304 float y_3)
305 {
306 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
307
308 cogl2_path_rel_curve_to (get_current_path (ctx),
309 x_1, y_1, x_2, y_2, x_3, y_3);
310 }
311
312 CoglPath *
cogl_get_path(void)313 cogl_get_path (void)
314 {
315 _COGL_GET_CONTEXT (ctx, NULL);
316
317 return get_current_path (ctx);
318 }
319
320 void
cogl_set_path(CoglPath * path)321 cogl_set_path (CoglPath *path)
322 {
323 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
324
325 _COGL_RETURN_IF_FAIL (cogl_is_path (path));
326
327 /* Reference the new object first in case it is the same as the old
328 object */
329 cogl_object_ref (path);
330 if (ctx->current_path)
331 cogl_object_unref (ctx->current_path);
332 ctx->current_path = path;
333 }
334
335 void
cogl_clip_push_from_path_preserve(void)336 cogl_clip_push_from_path_preserve (void)
337 {
338 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
339 cogl_framebuffer_push_path_clip (cogl_get_draw_framebuffer (),
340 get_current_path (ctx));
341 }
342
343 void
cogl_clip_push_from_path(void)344 cogl_clip_push_from_path (void)
345 {
346 _COGL_GET_CONTEXT (ctx, NO_RETVAL);
347
348 cogl_clip_push_from_path_preserve ();
349
350 if (ctx->current_path)
351 cogl_object_unref (ctx->current_path);
352 ctx->current_path = cogl2_path_new ();
353 }
354