1 /* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
2 * vim: ts=4 sw=4 noet ai cindent syntax=c
4 * Conky, a system monitor, based on torsmo
6 * Please see COPYING for details
8 * Copyright (c) 2005-2010 Brenden Matthews, et. al.
11 * This program is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
44 struct image_list_s *next;
47 struct image_list_s *image_list_start, *image_list_end;
50 Imlib_Updates updates, current_update;
51 /* our virtual framebuffer image we draw into */
52 Imlib_Image buffer, image;
54 static int cache_size_set = 0;
56 /* flush the image cache ever X seconds */
57 static int cimlib_cache_flush_interval = 0;
58 static int cimlib_cache_flush_last = 0;
60 #define DEFAULT_IMLIB2_CACHE_SIZE 4096 * 1024 /* default cache size for loaded images */
62 void cimlib_set_cache_size(long size)
64 fprintf(stderr, PACKAGE_NAME": cimlib_set_cache_size start\n");
65 imlib_set_cache_size(size);
69 void cimlib_set_cache_flush_interval(long interval)
71 fprintf(stderr, PACKAGE_NAME": cimlib_set_cache_flush_interval start\n");
73 cimlib_cache_flush_interval = interval;
75 NORM_ERR("Imlib2: flush interval should be >= 0");
79 void cimlib_cleanup(void)
81 fprintf(stderr, PACKAGE_NAME": cimlib_cleanup start\n");
82 struct image_list_s *cur = image_list_start, *last = NULL;
88 image_list_start = image_list_end = NULL;
91 Imlib_Context context;
93 void cimlib_init(Display *disp, Window drawable, Visual *visual, Colormap
96 fprintf(stderr, PACKAGE_NAME": cimlib_init start\n");
97 image_list_start = image_list_end = NULL;
98 context = imlib_context_new();
99 imlib_context_push(context);
100 if (!cache_size_set) cimlib_set_cache_size(DEFAULT_IMLIB2_CACHE_SIZE);
101 /* set the maximum number of colors to allocate for 8bpp and less to 256 */
102 imlib_set_color_usage(256);
103 /* dither for depths < 24bpp */
104 imlib_context_set_dither(1);
105 /* set the display , visual, colormap and drawable we are using */
106 imlib_context_set_display(disp);
107 imlib_context_set_visual(visual);
108 imlib_context_set_colormap(colourmap);
109 imlib_context_set_drawable(drawable);
110 fprintf(stderr, PACKAGE_NAME": cimlib_init okay\n");
113 void cimlib_initp(Display *disp, Pixmap drawable, Visual *visual, Colormap
116 fprintf(stderr, PACKAGE_NAME": cimlib_initp start\n");
117 image_list_start = image_list_end = NULL;
118 context = imlib_context_new();
119 imlib_context_push(context);
120 if (!cache_size_set) cimlib_set_cache_size(DEFAULT_IMLIB2_CACHE_SIZE);
121 /* set the maximum number of colors to allocate for 8bpp and less to 256 */
122 imlib_set_color_usage(256);
123 /* dither for depths < 24bpp */
124 imlib_context_set_dither(1);
125 /* set the display , visual, colormap and drawable we are using */
126 imlib_context_set_display(disp);
127 imlib_context_set_visual(visual);
128 imlib_context_set_colormap(colourmap);
129 imlib_context_set_drawable(drawable);
130 fprintf(stderr, PACKAGE_NAME": cimlib_initp okay\n");
133 void cimlib_deinit(void)
135 fprintf(stderr, PACKAGE_NAME": cimlib_deinit start\n");
138 // imlib_context_disconnect_display();
140 imlib_context_free(context);
141 fprintf(stderr, PACKAGE_NAME": cimlib_deinit okay\n");
144 void cimlib_add_image(const char *args)
146 fprintf(stderr, PACKAGE_NAME": cimlib_add_image start\n");
147 struct image_list_s *cur = NULL;
150 cur = malloc(sizeof(struct image_list_s));
151 memset(cur, 0, sizeof(struct image_list_s));
153 if (!sscanf(args, "%1023s", cur->name)) {
154 NORM_ERR("Invalid args for $image. Format is: '<path to image> (-p"
155 "x,y) (-s WxH) (-n) (-f interval)' (got '%s')", args);
159 to_real_path(cur->name, cur->name);
160 // now we check for optional args
161 tmp = strstr(args, "-p ");
164 sscanf(tmp, "%i,%i", &cur->x, &cur->y);
166 tmp = strstr(args, "-s ");
169 if (sscanf(tmp, "%ix%i", &cur->w, &cur->h)) {
174 tmp = strstr(args, "-n");
179 tmp = strstr(args, "-f ");
182 if (sscanf(tmp, "%d", &cur->flush_interval)) {
186 if (cur->flush_interval < 0) {
187 NORM_ERR("Imlib2: flush interval should be >= 0");
188 cur->flush_interval = 0;
191 if (image_list_end) {
192 image_list_end->next = cur;
193 image_list_end = cur;
195 image_list_start = image_list_end = cur;
197 fprintf(stderr, PACKAGE_NAME": cimlib_add_image okay\n");
200 static void cimlib_draw_image(struct image_list_s *cur, int *clip_x, int
201 *clip_y, int *clip_x2, int *clip_y2)
203 fprintf(stderr, PACKAGE_NAME": cimlib_draw_image start\n");
205 time_t now = time(NULL);
208 image = imlib_load_image(cur->name);
211 NORM_ERR("Unable to load image '%s'", cur->name);
215 rep = 0; /* reset so disappearing images are reported */
217 DBGP("Drawing image '%s' at (%i,%i) scaled to %ix%i, "
218 "caching interval set to %i (with -n opt %i)",
219 cur->name, cur->x, cur->y, cur->w, cur->h,
220 cur->flush_interval, cur->no_cache);
222 imlib_context_set_image(image);
223 /* turn alpha channel on */
224 imlib_image_set_has_alpha(1);
225 w = imlib_image_get_width();
226 h = imlib_image_get_height();
231 imlib_context_set_image(buffer);
232 imlib_blend_image_onto_image(image, 1, 0, 0, w, h,
233 cur->x, cur->y, cur->w, cur->h);
234 imlib_context_set_image(image);
235 if (cur->no_cache || (cur->flush_interval &&
236 now % cur->flush_interval == 0)) {
237 imlib_free_image_and_decache();
241 if (cur->x < *clip_x) *clip_x = cur->x;
242 if (cur->y < *clip_y) *clip_y = cur->y;
243 if (cur->x + cur->w > *clip_x2) *clip_x2 = cur->x + cur->w;
244 if (cur->y + cur->h > *clip_y2) *clip_y2 = cur->y + cur->h;
245 fprintf(stderr, PACKAGE_NAME": cimlib_draw_image okay\n");
248 static void cimlib_draw_all(int *clip_x, int *clip_y, int *clip_x2, int *clip_y2)
250 fprintf(stderr, PACKAGE_NAME": cimlib_draw_all start\n");
251 struct image_list_s *cur = image_list_start;
253 cimlib_draw_image(cur, clip_x, clip_y, clip_x2, clip_y2);
256 fprintf(stderr, PACKAGE_NAME": cimlib_draw_all okay\n");
259 void cimlib_render(int x, int y, int width, int height)
262 int clip_x = INT_MAX, clip_y = INT_MAX;
263 int clip_x2 = 0, clip_y2 = 0;
266 if (!image_list_start) return; /* are we actually drawing anything? */
267 fprintf(stderr, PACKAGE_NAME": cimlib_render start\n");
268 /* check if it's time to flush our cache */
270 if (cimlib_cache_flush_interval && now - cimlib_cache_flush_interval > cimlib_cache_flush_last) {
271 int size = imlib_get_cache_size();
272 imlib_set_cache_size(0);
273 imlib_set_cache_size(size);
274 cimlib_cache_flush_last = now;
275 DBGP("Flushing Imlib2 cache (%li)\n", now);
277 fprintf(stderr, PACKAGE_NAME": render1\n");
278 /* take all the little rectangles to redraw and merge them into
279 * something sane for rendering */
280 buffer = imlib_create_image(width, height);
281 fprintf(stderr, PACKAGE_NAME": render2\n");
282 /* clear our buffer */
283 imlib_context_set_image(buffer);
284 fprintf(stderr, PACKAGE_NAME": render3\n");
286 fprintf(stderr, PACKAGE_NAME": render4\n");
287 /* we can blend stuff now */
288 imlib_context_set_blend(1);
289 fprintf(stderr, PACKAGE_NAME": render5\n");
290 /* turn alpha channel on */
291 imlib_image_set_has_alpha(1);
292 fprintf(stderr, PACKAGE_NAME": rende6\n");
294 cimlib_draw_all(&clip_x, &clip_y, &clip_x2, &clip_y2);
295 fprintf(stderr, PACKAGE_NAME": render7\n");
297 /* set the buffer image as our current image */
298 imlib_context_set_image(buffer);
299 fprintf(stderr, PACKAGE_NAME": render8\n");
301 /* setup our clip rect */
302 if (clip_x == INT_MAX) clip_x = 0;
303 if (clip_y == INT_MAX) clip_y = 0;
304 fprintf(stderr, PACKAGE_NAME": render9\n");
306 /* render the image at 0, 0 */
307 imlib_render_image_part_on_drawable_at_size(clip_x, clip_y, clip_x2 - clip_x,
308 clip_y2 - clip_y, x + clip_x, y + clip_y, clip_x2 - clip_x,
310 fprintf(stderr, PACKAGE_NAME": render10\n");
311 /* don't need that temporary buffer image anymore */
313 fprintf(stderr, PACKAGE_NAME": cimlib_render okay\n");