Line data Source code
1 : /*
2 : * GPAC - Multimedia Framework C SDK
3 : *
4 : * Authors: Cyril Concolato - Jean le Feuvre
5 : * Copyright (c) Telecom ParisTech 2005-2012
6 : * All rights reserved
7 : *
8 : * This file is part of GPAC / Scene Compositor sub-project
9 : *
10 : * GPAC is free software; you can redistribute it and/or modify
11 : * it under the terms of the GNU Lesser General Public License as published by
12 : * the Free Software Foundation; either version 2, or (at your option)
13 : * any later version.
14 : *
15 : * GPAC is distributed in the hope that it will be useful,
16 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 : * GNU Lesser General Public License for more details.
19 : *
20 : * You should have received a copy of the GNU Lesser General Public
21 : * License along with this library; see the file COPYING. If not, write to
22 : * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
23 : *
24 : */
25 :
26 : #include "visual_manager.h"
27 :
28 : #ifndef GPAC_DISABLE_SVG
29 : #include "nodes_stacks.h"
30 : #include <gpac/iso639.h>
31 :
32 :
33 : /*
34 : This is the generic routine for children traversing
35 : */
36 10352 : void compositor_svg_traverse_children(GF_ChildNodeItem *children, GF_TraverseState *tr_state)
37 : {
38 73146 : while (children) {
39 52442 : gf_node_traverse(children->node, tr_state);
40 52442 : children = children->next;
41 : }
42 10352 : }
43 :
44 38509 : Bool compositor_svg_is_display_off(SVGPropertiesPointers *props)
45 : {
46 38509 : return (props->display && (*(props->display) == SVG_DISPLAY_NONE)) ? GF_TRUE : GF_FALSE;
47 : }
48 :
49 :
50 36257 : void compositor_svg_apply_local_transformation(GF_TraverseState *tr_state, SVGAllAttributes *atts, GF_Matrix2D *backup_matrix_2d, GF_Matrix *backup_matrix)
51 : {
52 : #ifndef GPAC_DISABLE_3D
53 36257 : if (tr_state->visual->type_3d && backup_matrix) {
54 13 : Bool is_draw = (tr_state->traversing_mode==TRAVERSE_SORT) ? GF_TRUE : GF_FALSE;
55 13 : gf_mx_copy(*backup_matrix, tr_state->model_matrix);
56 :
57 13 : if (atts->transform && atts->transform->is_ref) {
58 0 : gf_mx_from_mx2d(&tr_state->model_matrix, &tr_state->vb_transform);
59 0 : if (is_draw) {
60 0 : gf_mx_init(tr_state->model_matrix);
61 0 : gf_mx_add_translation(&tr_state->model_matrix, -tr_state->camera->width/2, tr_state->camera->height/2, 0);
62 0 : gf_mx_add_scale(&tr_state->model_matrix, FIX_ONE, -FIX_ONE, FIX_ONE);
63 0 : gf_mx_add_matrix_2d(&tr_state->model_matrix, &tr_state->vb_transform);
64 : }
65 : }
66 :
67 13 : if (atts->motionTransform) {
68 0 : gf_mx_add_matrix_2d(&tr_state->model_matrix, atts->motionTransform);
69 : }
70 :
71 13 : if (atts->transform) {
72 0 : gf_mx_add_matrix_2d(&tr_state->model_matrix, &atts->transform->mat);
73 : }
74 : return;
75 : }
76 : #endif
77 36244 : gf_mx2d_copy(*backup_matrix_2d, tr_state->transform);
78 :
79 36244 : if (atts->transform && atts->transform->is_ref)
80 0 : gf_mx2d_copy(tr_state->transform, tr_state->vb_transform);
81 :
82 36244 : if (atts->motionTransform)
83 300 : gf_mx2d_pre_multiply(&tr_state->transform, atts->motionTransform);
84 :
85 36244 : if (atts->transform)
86 4255 : gf_mx2d_pre_multiply(&tr_state->transform, &atts->transform->mat);
87 :
88 : }
89 :
90 36257 : void compositor_svg_restore_parent_transformation(GF_TraverseState *tr_state, GF_Matrix2D *backup_matrix_2d, GF_Matrix *backup_matrix)
91 : {
92 : #ifndef GPAC_DISABLE_3D
93 36257 : if (tr_state->visual->type_3d && backup_matrix) {
94 13 : gf_mx_copy(tr_state->model_matrix, *backup_matrix);
95 : return;
96 : }
97 : #endif
98 36244 : gf_mx2d_copy(tr_state->transform, *backup_matrix_2d);
99 : }
100 :
101 : #ifdef GPAC_UNUSED_FUNC
102 : static void gf_svg_apply_inheritance_no_inheritance(SVGAllAttributes *all_atts, SVGPropertiesPointers *render_svg_props)
103 : {
104 : #define CHECK_PROP(a, b) if (b) a = b;
105 :
106 : render_svg_props->audio_level = NULL;
107 : CHECK_PROP(render_svg_props->display, all_atts->display);
108 : CHECK_PROP(render_svg_props->fill, all_atts->fill);
109 : CHECK_PROP(render_svg_props->fill_opacity, all_atts->fill_opacity);
110 : CHECK_PROP(render_svg_props->fill_rule, all_atts->fill_rule);
111 : CHECK_PROP(render_svg_props->solid_color, all_atts->solid_color);
112 : CHECK_PROP(render_svg_props->solid_opacity, all_atts->solid_opacity);
113 : CHECK_PROP(render_svg_props->stop_color, all_atts->stop_color);
114 : CHECK_PROP(render_svg_props->stop_opacity, all_atts->stop_opacity);
115 : CHECK_PROP(render_svg_props->stroke, all_atts->stroke);
116 : CHECK_PROP(render_svg_props->stroke_dasharray, all_atts->stroke_dasharray);
117 : CHECK_PROP(render_svg_props->stroke_dashoffset, all_atts->stroke_dashoffset);
118 : CHECK_PROP(render_svg_props->stroke_linecap, all_atts->stroke_linecap);
119 : CHECK_PROP(render_svg_props->stroke_linejoin, all_atts->stroke_linejoin);
120 : CHECK_PROP(render_svg_props->stroke_miterlimit, all_atts->stroke_miterlimit);
121 : CHECK_PROP(render_svg_props->stroke_opacity, all_atts->stroke_opacity);
122 : CHECK_PROP(render_svg_props->stroke_width, all_atts->stroke_width);
123 : CHECK_PROP(render_svg_props->visibility, all_atts->visibility);
124 : }
125 : #endif /*GPAC_UNUSED_FUNC*/
126 :
127 : static const struct svg_11_feature {
128 : const char *name;
129 : Bool supported;
130 : } svg11_features[] =
131 : {
132 : { "Animation", GF_TRUE},
133 : { "AnimationEventsAttribute", GF_TRUE},
134 : { "BasicClip", GF_FALSE},
135 : { "BasicFilter", GF_FALSE},
136 : { "BasicFont", GF_TRUE},
137 : { "BasicGraphicsAttribute", GF_TRUE},
138 : { "BasicPaintAttribute", GF_TRUE},
139 : { "BasicStructure", GF_TRUE},
140 : { "BasicText", GF_TRUE},
141 : { "Clip", GF_FALSE},
142 : { "ColorProfile", GF_FALSE},
143 : { "ConditionalProcessing", GF_TRUE},
144 : { "ContainerAttribute", GF_TRUE},
145 : { "CoreAttribute", GF_TRUE},
146 : { "Cursor", GF_FALSE},
147 : { "DocumentEventsAttribute", GF_TRUE},
148 : { "Extensibility", GF_TRUE},
149 : { "ExternalResourcesRequired", GF_FALSE},
150 : { "Font", GF_TRUE},
151 : { "Filter", GF_FALSE},
152 : { "Gradient", GF_TRUE},
153 : { "GraphicalEventsAttribute", GF_TRUE},
154 : { "GraphicsAttribute", GF_TRUE},
155 : { "Hyperlinking", GF_TRUE},
156 : { "Image", GF_TRUE},
157 : { "Marker", GF_FALSE},
158 : { "Mask", GF_FALSE},
159 : { "OpacityAttribute", GF_TRUE},
160 : { "PaintAttribute", GF_TRUE},
161 : { "Pattern", GF_FALSE},
162 : { "Script", GF_TRUE},
163 : { "Scripting", GF_TRUE},
164 : { "Shape", GF_TRUE},
165 : { "View", GF_FALSE}, /*no support for <view> element, the rest is OK ...*/
166 : { "ViewportAttribute", GF_TRUE},
167 : { "Structure", GF_TRUE},
168 : { "Style", GF_FALSE},
169 : { "Text", GF_TRUE},
170 : { "View", GF_TRUE},
171 : { "XlinkAttribute", GF_TRUE},
172 :
173 : { "SVG", GF_TRUE},
174 : { "SVG-animation", GF_TRUE},
175 : { "SVG-dynamic", GF_TRUE},
176 : { "SVG-static", GF_TRUE},
177 : /*we don't support SVG DOM, only uDOM*/
178 : { "SVGDOM", GF_FALSE},
179 : { "SVGDOM-animation", GF_FALSE},
180 : { "SVGDOM-dynamic", GF_FALSE},
181 : { "SVGDOM-static", GF_FALSE},
182 : };
183 : static const struct svg_12_feature {
184 : const char *name;
185 : Bool supported;
186 : } svg12_features[] =
187 : {
188 : { "CoreAttribute", GF_TRUE},
189 : { "NavigationAttribute", GF_TRUE},
190 : { "Structure", GF_TRUE},
191 : { "ConditionalProcessing", GF_TRUE},
192 : { "ConditionalProcessingAttribute", GF_TRUE},
193 : { "Image", GF_TRUE},
194 : { "Prefetch", GF_TRUE},
195 : { "Discard", GF_TRUE},
196 : { "Shape", GF_TRUE},
197 : { "Text", GF_TRUE},
198 : { "PaintAttribute", GF_TRUE},
199 : { "OpacityAttribute", GF_TRUE},
200 : { "GraphicsAttribute", GF_TRUE},
201 : { "Gradient", GF_TRUE},
202 : { "SolidColor", GF_TRUE},
203 : { "Hyperlinking", GF_TRUE},
204 : { "XlinkAttribute", GF_TRUE},
205 : { "ExternalResourcesRequired", GF_TRUE},
206 : { "Scripting", GF_TRUE},
207 : { "Handler", GF_TRUE},
208 : { "Listener", GF_TRUE},
209 : { "TimedAnimation", GF_TRUE},
210 : { "Animation", GF_TRUE},
211 : { "Audio", GF_TRUE},
212 : { "Video", GF_TRUE},
213 : { "Font", GF_TRUE},
214 : { "Extensibility", GF_TRUE},
215 : { "MediaAttribute", GF_TRUE},
216 : { "TextFlow", GF_TRUE},
217 : { "TransformedVideo", GF_TRUE},
218 : { "ComposedVideo", GF_TRUE},
219 : { "EditableTextAttribute", GF_TRUE},
220 :
221 : { "SVG-static", GF_TRUE},
222 : { "SVG-static-DOM", GF_TRUE},
223 : { "SVG-animated", GF_TRUE},
224 : { "SVG-all", GF_TRUE},
225 : { "SVG-interactive", GF_TRUE},
226 : };
227 :
228 :
229 960 : Bool compositor_svg_evaluate_conditional(GF_Compositor *compositor, SVGAllAttributes *atts)
230 : {
231 : u32 i, count;
232 : Bool found;
233 : s32 lang_idx;
234 :
235 : /*process required features*/
236 960 : count = atts->requiredFeatures ? gf_list_count(*atts->requiredFeatures) : 0;
237 1014 : for (i=0; i<count; i++) {
238 : char *feat = NULL;
239 207 : XMLRI *iri = (XMLRI*)gf_list_get(*atts->requiredFeatures, i);
240 207 : if (!iri->string) continue;
241 :
242 207 : if (!strnicmp(iri->string, "org.w3c.svg", 11)) {
243 0 : feat = iri->string+12;
244 0 : if (feat) {
245 0 : if (!stricmp(feat, "animation")) {}
246 0 : else if (!stricmp(feat, "dynamic")) {}
247 : /*no support for filters, clipping & co - SVG 1.0 featureStrings are badly designed*/
248 : else return GF_FALSE;
249 : }
250 : }
251 207 : else if (!strnicmp(iri->string, "http://www.w3.org/TR/SVG11/feature", 34)) {
252 0 : feat = iri->string+35;
253 0 : if (feat) {
254 : u32 j, nbf;
255 : found = GF_FALSE;
256 : nbf = sizeof(svg11_features) / sizeof(struct svg_11_feature);
257 0 : for (j=0; j<nbf; j++) {
258 0 : if (!strcmp(svg11_features[j].name, feat)) {
259 : found = GF_TRUE;
260 0 : if (!svg11_features[j].supported) return GF_FALSE;
261 : break;
262 : }
263 : }
264 : if (!found) return GF_FALSE;
265 : }
266 : }
267 207 : else if (!strnicmp(iri->string, "http://www.w3.org/Graphics/SVG/feature/1.2/", 43)) {
268 55 : feat = iri->string+44;
269 55 : if (feat) {
270 : u32 j, nbf;
271 : found = GF_FALSE;
272 : nbf = sizeof(svg12_features) / sizeof(struct svg_12_feature);
273 676 : for (j=0; j<nbf; j++) {
274 730 : if (!strcmp(svg12_features[j].name, feat)) {
275 : found = GF_TRUE;
276 54 : if (!svg12_features[j].supported) return GF_FALSE;
277 : break;
278 : }
279 : }
280 : if (!found) return GF_FALSE;
281 : }
282 : }
283 : /*unrecognized feature*/
284 : else {
285 : return GF_FALSE;
286 : }
287 : }
288 :
289 : /*process required extensions*/
290 807 : count = atts->requiredExtensions ? gf_list_count(*atts->requiredExtensions) : 0;
291 150 : if (count) return GF_FALSE;
292 :
293 : /*process system language*/
294 657 : count = atts->systemLanguage ? gf_list_count(*atts->systemLanguage) : 0;
295 301 : if (count) {
296 : found = GF_FALSE;
297 301 : const char *lang = gf_opts_get_key("core", "lang");
298 301 : lang_idx = lang ? gf_lang_find(lang) : -1;
299 : } else {
300 : lang_idx = -1;
301 : found = GF_TRUE;
302 : }
303 :
304 958 : for (i=0; i<count; i++) {
305 301 : char *lang = (char*)gf_list_get(*atts->systemLanguage, i);
306 301 : s32 pref_lang_idx = lang ? gf_lang_find(lang) : -1;
307 301 : if (pref_lang_idx==lang_idx) {
308 : found = GF_TRUE;
309 : break;
310 : }
311 : }
312 657 : if (!found) return GF_FALSE;
313 :
314 : /*process required formats*/
315 356 : count = atts->requiredFormats ? gf_list_count(*atts->requiredFormats) : 0;
316 150 : if (count) {
317 150 : for (i=0; i<count; i++) {
318 : Bool mime_ok;
319 150 : char *mime = (char*)gf_list_get(*atts->requiredFormats, i);
320 150 : char *sep = strchr(mime, ';');
321 150 : if (sep) sep[0] = 0;
322 150 : mime_ok = gf_filter_is_supported_mime(compositor->filter, mime);
323 150 : if (sep) sep[0] = ';';
324 150 : if (!mime_ok) return GF_FALSE;
325 : }
326 : }
327 :
328 : /*process required fonts*/
329 356 : count = atts->requiredFonts ? gf_list_count(*atts->requiredFonts) : 0;
330 150 : if (count) {
331 0 : for (i=0; i<count; i++) {
332 150 : char *font = (char*)gf_list_get(*atts->requiredFonts, i);
333 150 : if (gf_font_manager_set_font_ex(compositor->font_manager, &font, 1, 0, GF_TRUE)==NULL)
334 150 : return GF_FALSE;
335 : }
336 : }
337 :
338 : /*OK, we can render this one*/
339 : return GF_TRUE;
340 : }
341 :
342 41113 : Bool compositor_svg_traverse_base(GF_Node *node, SVGAllAttributes *atts, GF_TraverseState *tr_state,
343 : SVGPropertiesPointers *backup_props, u32 *backup_flags)
344 : {
345 : u32 inherited_flags_mask, flags;
346 :
347 41113 : if (atts->requiredFeatures || atts->requiredExtensions || atts->systemLanguage
348 40325 : || atts->requiredFonts || atts->requiredFormats) {
349 938 : if (!compositor_svg_evaluate_conditional(tr_state->visual->compositor, atts))
350 : return GF_FALSE;
351 : }
352 :
353 40361 : memcpy(backup_props, tr_state->svg_props, sizeof(SVGPropertiesPointers));
354 40361 : *backup_flags = tr_state->svg_flags;
355 :
356 : #if 0
357 : // applying inheritance and determining which group of properties are being inherited
358 : inherited_flags_mask = gf_svg_apply_inheritance(atts, tr_state->svg_props);
359 : gf_svg_apply_animations(node, tr_state->svg_props); // including again inheritance if values are 'inherit'
360 : #else
361 : /* animation (including possibly inheritance) then full inheritance */
362 40361 : gf_svg_apply_animations(node, tr_state->svg_props);
363 40361 : inherited_flags_mask = gf_svg_apply_inheritance(atts, tr_state->svg_props);
364 : // gf_svg_apply_inheritance_no_inheritance(atts, tr_state->svg_props);
365 : // inherited_flags_mask = 0xFFFFFFFF;
366 : #endif
367 40361 : tr_state->svg_flags &= inherited_flags_mask;
368 40361 : flags = gf_node_dirty_get(node);
369 40361 : tr_state->svg_flags |= flags;
370 :
371 40361 : return GF_TRUE;
372 : }
373 : #endif
374 :
375 :
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