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authorDavid Walter Seikel2012-01-04 18:41:13 +1000
committerDavid Walter Seikel2012-01-04 18:41:13 +1000
commitdd7595a3475407a7fa96a97393bae8c5220e8762 (patch)
treee341e911d7eb911a51684a7412ef7f7c7605d28e /libraries/ecore/src/lib/ecore_x/xcb/ecore_xcb_cursor.c
parentAdd the skeleton. (diff)
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Add the base Enlightenment Foundation Libraries - eina, eet, evas, ecore, embryo, and edje.
Note that embryo wont be used, but I'm not sure yet if you can build edje without it.
Diffstat (limited to 'libraries/ecore/src/lib/ecore_x/xcb/ecore_xcb_cursor.c')
-rw-r--r--libraries/ecore/src/lib/ecore_x/xcb/ecore_xcb_cursor.c400
1 files changed, 400 insertions, 0 deletions
diff --git a/libraries/ecore/src/lib/ecore_x/xcb/ecore_xcb_cursor.c b/libraries/ecore/src/lib/ecore_x/xcb/ecore_xcb_cursor.c
new file mode 100644
index 0000000..755df04
--- /dev/null
+++ b/libraries/ecore/src/lib/ecore_x/xcb/ecore_xcb_cursor.c
@@ -0,0 +1,400 @@
1#include "ecore_xcb_private.h"
2#ifdef ECORE_XCB_CURSOR
3# include <xcb/render.h>
4# include <xcb/xcb_renderutil.h>
5#endif
6
7/* local function prototypes */
8#ifdef ECORE_XCB_CURSOR
9static xcb_render_pictforminfo_t *_ecore_xcb_cursor_format_get(void);
10#endif
11static void _ecore_xcb_cursor_default_size_get(void);
12static void _ecore_xcb_cursor_dpi_size_get(void);
13static void _ecore_xcb_cursor_guess_size(void);
14#ifdef ECORE_XCB_CURSOR
15static Ecore_X_Cursor _ecore_xcb_cursor_image_load_cursor(xcb_image_t *img,
16 int hot_x,
17 int hot_y);
18#endif
19static void _ecore_xcb_cursor_image_destroy(xcb_image_t *img);
20
21/* local variables */
22static int _ecore_xcb_cursor_size = 0;
23static Eina_Bool _ecore_xcb_cursor = EINA_FALSE;
24#ifdef ECORE_XCB_CURSOR
25static uint32_t _ecore_xcb_cursor_format_id = 0;
26// static xcb_render_pictforminfo_t *_ecore_xcb_cursor_format = NULL;
27#endif
28
29void
30_ecore_xcb_cursor_init(void)
31{
32 LOGFN(__FILE__, __LINE__, __FUNCTION__);
33 /* NB: No-op */
34}
35
36void
37_ecore_xcb_cursor_finalize(void)
38{
39 LOGFN(__FILE__, __LINE__, __FUNCTION__);
40
41#ifdef ECORE_XCB_CURSOR
42 _ecore_xcb_cursor = _ecore_xcb_render_argb_get();
43
44 /* find render pict format */
45 if (_ecore_xcb_cursor_format_id <= 0)
46 _ecore_xcb_cursor_format_id = _ecore_xcb_cursor_format_get()->id;
47#endif
48
49 /* try to grab cursor size from XDefaults */
50 _ecore_xcb_cursor_default_size_get();
51
52 /* if that failed, try to get it from Xft Dpi setting */
53 if (_ecore_xcb_cursor_size == 0)
54 _ecore_xcb_cursor_dpi_size_get();
55
56 /* if that failed, try to guess from display size */
57 if (_ecore_xcb_cursor_size == 0)
58 _ecore_xcb_cursor_guess_size();
59
60 /* NB: Would normally add theme stuff here, but E cursor does not support
61 * xcursor themes. Delay parsing that stuff out until such time if/when the
62 * user selects to use X Cursor, rather than E cursor */
63}
64
65EAPI Eina_Bool
66ecore_x_cursor_color_supported_get(void)
67{
68 LOGFN(__FILE__, __LINE__, __FUNCTION__);
69
70 return _ecore_xcb_cursor;
71}
72
73EAPI Ecore_X_Cursor
74ecore_x_cursor_new(Ecore_X_Window win,
75 int *pixels,
76 int w,
77 int h,
78 int hot_x,
79 int hot_y)
80{
81 Ecore_X_Cursor cursor = 0;
82 xcb_image_t *img;
83
84// LOGFN(__FILE__, __LINE__, __FUNCTION__);
85 CHECK_XCB_CONN;
86
87#ifdef ECORE_XCB_CURSOR
88 if (_ecore_xcb_cursor)
89 {
90 img = _ecore_xcb_image_create_native(w, h, XCB_IMAGE_FORMAT_Z_PIXMAP,
91 32, NULL, (w * h * sizeof(int)),
92 (uint8_t *)pixels);
93 cursor = _ecore_xcb_cursor_image_load_cursor(img, hot_x, hot_y);
94 _ecore_xcb_cursor_image_destroy(img);
95 return cursor;
96 }
97 else
98#endif
99 {
100 Ecore_X_GC gc;
101 xcb_pixmap_t pmap, mask;
102 uint32_t *pix;
103 uint8_t fr = 0x00, fg = 0x00, fb = 0x00;
104 uint8_t br = 0xff, bg = 0xff, bb = 0xff;
105 uint32_t brightest = 0, darkest = 255 * 3;
106 uint16_t x, y;
107 const uint32_t dither[2][2] =
108 {
109 {0, 2},
110 {3, 1}
111 };
112
113 img = _ecore_xcb_image_create_native(w, h, XCB_IMAGE_FORMAT_Z_PIXMAP,
114 1, NULL, ~0, NULL);
115 if (img->data) free(img->data);
116 img->data = malloc(img->size);
117
118 pmap = xcb_generate_id(_ecore_xcb_conn);
119 xcb_create_pixmap(_ecore_xcb_conn, 1, pmap, win, w, h);
120 mask = xcb_generate_id(_ecore_xcb_conn);
121 xcb_create_pixmap(_ecore_xcb_conn, 1, mask, win, w, h);
122
123 pix = (uint32_t *)pixels;
124 for (y = 0; y < h; y++)
125 {
126 for (x = 0; x < w; x++)
127 {
128 uint8_t r, g, b, a;
129
130 a = (pix[0] >> 24) & 0xff;
131 r = (pix[0] >> 16) & 0xff;
132 g = (pix[0] >> 8) & 0xff;
133 b = (pix[0]) & 0xff;
134 if (a > 0)
135 {
136 if ((uint32_t)(r + g + b) > brightest)
137 {
138 brightest = r + g + b;
139 br = r;
140 bg = g;
141 bb = b;
142 }
143
144 if ((uint32_t)(r + g + b) < darkest)
145 {
146 darkest = r + g + b;
147 fr = r;
148 fg = g;
149 fb = b;
150 }
151 }
152 pix++;
153 }
154 }
155
156 pix = (uint32_t *)pixels;
157 for (y = 0; y < h; y++)
158 {
159 for (x = 0; x < w; x++)
160 {
161 uint32_t v;
162 uint8_t r, g, b;
163 int32_t d1, d2;
164
165 r = (pix[0] >> 16) & 0xff;
166 g = (pix[0] >> 8) & 0xff;
167 b = (pix[0]) & 0xff;
168 d1 =
169 ((r - fr) * (r - fr)) +
170 ((g - fg) * (g - fg)) +
171 ((b - fb) * (b - fb));
172 d2 =
173 ((r - br) * (r - br)) +
174 ((g - bg) * (g - bg)) +
175 ((b - bb) * (b - bb));
176 if (d1 + d2)
177 {
178 v = (((d2 * 255) / (d1 + d2)) * 5) / 256;
179 if (v > dither[x & 0x1][y & 0x1])
180 v = 1;
181 else
182 v = 0;
183 }
184 else
185 v = 0;
186
187 xcb_image_put_pixel(img, x, y, v);
188 pix++;
189 }
190 }
191
192 gc = ecore_x_gc_new(pmap, 0, NULL);
193 xcb_put_image(_ecore_xcb_conn, img->format, pmap, gc, w, h,
194 0, 0, 0, img->depth, img->size, img->data);
195 ecore_x_gc_free(gc);
196
197 pix = (uint32_t *)pixels;
198 for (y = 0; y < h; y++)
199 {
200 for (x = 0; x < w; x++)
201 {
202 uint32_t v;
203
204 v = (((pix[0] >> 24) & 0xff) * 5) / 256;
205 if (v > dither[x & 0x1][y & 0x1])
206 v = 1;
207 else
208 v = 0;
209
210 xcb_image_put_pixel(img, x, y, v);
211 pix++;
212 }
213 }
214
215 gc = ecore_x_gc_new(mask, 0, NULL);
216 xcb_put_image(_ecore_xcb_conn, img->format, mask, gc, w, h,
217 0, 0, 0, img->depth, img->size, img->data);
218 ecore_x_gc_free(gc);
219
220 if (img->data) free(img->data);
221 _ecore_xcb_cursor_image_destroy(img);
222
223 cursor = xcb_generate_id(_ecore_xcb_conn);
224 xcb_create_cursor(_ecore_xcb_conn, cursor, pmap, mask,
225 fr << 8 | fr, fg << 8 | fg, fb << 8 | fb,
226 br << 8 | br, bg << 8 | bg, bb << 8 | bb,
227 hot_x, hot_y);
228
229 xcb_free_pixmap(_ecore_xcb_conn, pmap);
230 xcb_free_pixmap(_ecore_xcb_conn, mask);
231
232 return cursor;
233 }
234
235 return 0;
236}
237
238EAPI void
239ecore_x_cursor_free(Ecore_X_Cursor c)
240{
241// LOGFN(__FILE__, __LINE__, __FUNCTION__);
242 CHECK_XCB_CONN;
243
244 xcb_free_cursor(_ecore_xcb_conn, c);
245}
246
247/*
248 * Returns the cursor for the given shape.
249 * Note that the return value must not be freed with
250 * ecore_x_cursor_free()!
251 */
252EAPI Ecore_X_Cursor
253ecore_x_cursor_shape_get(int shape)
254{
255 Ecore_X_Cursor cursor = 0;
256 xcb_font_t font;
257
258 LOGFN(__FILE__, __LINE__, __FUNCTION__);
259 CHECK_XCB_CONN;
260
261 font = xcb_generate_id(_ecore_xcb_conn);
262 xcb_open_font(_ecore_xcb_conn, font, strlen("cursor"), "cursor");
263
264 cursor = xcb_generate_id(_ecore_xcb_conn);
265 /* FIXME: Add request check ?? */
266 xcb_create_glyph_cursor(_ecore_xcb_conn, cursor, font, font,
267 shape, shape + 1, 0, 0, 0, 65535, 65535, 65535);
268
269 xcb_close_font(_ecore_xcb_conn, font);
270 return cursor;
271}
272
273EAPI void
274ecore_x_cursor_size_set(int size)
275{
276 LOGFN(__FILE__, __LINE__, __FUNCTION__);
277
278 _ecore_xcb_cursor_size = size;
279 /* NB: May need to adjust size of current cursors here */
280}
281
282EAPI int
283ecore_x_cursor_size_get(void)
284{
285 LOGFN(__FILE__, __LINE__, __FUNCTION__);
286
287 return _ecore_xcb_cursor_size;
288}
289
290/* local functions */
291#ifdef ECORE_XCB_CURSOR
292static xcb_render_pictforminfo_t *
293_ecore_xcb_cursor_format_get(void)
294{
295 const xcb_render_query_pict_formats_reply_t *reply;
296 xcb_render_pictforminfo_t *ret = NULL;
297
298 CHECK_XCB_CONN;
299
300 reply = xcb_render_util_query_formats(_ecore_xcb_conn);
301 if (reply)
302 ret = xcb_render_util_find_standard_format(reply,
303 XCB_PICT_STANDARD_ARGB_32);
304
305 return ret;
306}
307
308#endif
309
310static void
311_ecore_xcb_cursor_default_size_get(void)
312{
313 char *s = NULL;
314 int v = 0;
315
316 LOGFN(__FILE__, __LINE__, __FUNCTION__);
317
318 s = getenv("XCURSOR_SIZE");
319 if (!s)
320 {
321 _ecore_xcb_xdefaults_init();
322 v = _ecore_xcb_xdefaults_int_get("Xcursor", "size");
323 _ecore_xcb_xdefaults_shutdown();
324 }
325 else
326 v = atoi(s);
327 if (v) _ecore_xcb_cursor_size = ((v * 16) / 72);
328}
329
330static void
331_ecore_xcb_cursor_dpi_size_get(void)
332{
333 int v = 0;
334
335 LOGFN(__FILE__, __LINE__, __FUNCTION__);
336
337 _ecore_xcb_xdefaults_init();
338 v = _ecore_xcb_xdefaults_int_get("Xft", "dpi");
339 if (v) _ecore_xcb_cursor_size = ((v * 16) / 72);
340 _ecore_xcb_xdefaults_shutdown();
341}
342
343static void
344_ecore_xcb_cursor_guess_size(void)
345{
346 int w = 0, h = 0, s = 0;
347
348 LOGFN(__FILE__, __LINE__, __FUNCTION__);
349
350 ecore_x_screen_size_get(_ecore_xcb_screen, &w, &h);
351 if (h < w) s = h;
352 else s = w;
353 _ecore_xcb_cursor_size = (s / 48);
354}
355
356#ifdef ECORE_XCB_CURSOR
357static Ecore_X_Cursor
358_ecore_xcb_cursor_image_load_cursor(xcb_image_t *img,
359 int hot_x,
360 int hot_y)
361{
362 Ecore_X_Cursor cursor = 0;
363 Ecore_X_GC gc;
364 xcb_pixmap_t pmap;
365 xcb_render_picture_t pict;
366
367 CHECK_XCB_CONN;
368
369 pmap = xcb_generate_id(_ecore_xcb_conn);
370 xcb_create_pixmap(_ecore_xcb_conn, img->depth, pmap,
371 ((xcb_screen_t *)_ecore_xcb_screen)->root,
372 img->width, img->height);
373
374 gc = ecore_x_gc_new(pmap, 0, NULL);
375 xcb_put_image(_ecore_xcb_conn, img->format, pmap, gc,
376 img->width, img->height, 0, 0, 0, img->depth,
377 img->size, img->data);
378 ecore_x_gc_free(gc);
379
380 pict = xcb_generate_id(_ecore_xcb_conn);
381 xcb_render_create_picture(_ecore_xcb_conn, pict, pmap,
382 _ecore_xcb_cursor_format_id, 0, NULL);
383 xcb_free_pixmap(_ecore_xcb_conn, pmap);
384
385 cursor = xcb_generate_id(_ecore_xcb_conn);
386 xcb_render_create_cursor(_ecore_xcb_conn, cursor, pict, hot_x, hot_y);
387 xcb_render_free_picture(_ecore_xcb_conn, pict);
388
389 return cursor;
390}
391
392#endif
393
394static void
395_ecore_xcb_cursor_image_destroy(xcb_image_t *img)
396{
397 CHECK_XCB_CONN;
398 if (img) xcb_image_destroy(img);
399}
400