|
|
1 | #include <math.h> |
| 1 | #include "../config.h" |
2 | #include "../config.h" |
| 2 | #include "rxvt.h" |
3 | #include "rxvt.h" |
| 3 | |
4 | |
| 4 | #if HAVE_IMG |
5 | #if HAVE_IMG |
| 5 | |
6 | |
| 6 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height) |
7 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
| 7 | : s(screen), w(width), h(height), format(format) |
8 | : s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
|
|
9 | pm(0), ref(0) |
|
|
10 | { |
|
|
11 | } |
|
|
12 | |
|
|
13 | rxvt_img::rxvt_img (const rxvt_img &img) |
|
|
14 | : s(img.s), x(img.x), y(img.y), w(img.w), h(img.h), format(img.format), repeat(img.repeat), pm(img.pm), ref(img.ref) |
|
|
15 | { |
|
|
16 | ++ref->cnt; |
|
|
17 | } |
|
|
18 | |
|
|
19 | rxvt_img * |
|
|
20 | rxvt_img::new_from_root (rxvt_screen *s) |
|
|
21 | { |
|
|
22 | Display *dpy = s->display->dpy; |
|
|
23 | unsigned int root_pm_w, root_pm_h; |
|
|
24 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]); |
|
|
25 | if (root_pixmap == None) |
|
|
26 | root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]); |
|
|
27 | |
|
|
28 | if (root_pixmap == None) |
|
|
29 | return 0; |
|
|
30 | |
|
|
31 | Window wdummy; |
|
|
32 | int idummy; |
|
|
33 | unsigned int udummy; |
|
|
34 | |
|
|
35 | if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pm_w, &root_pm_h, &udummy, &udummy)) |
|
|
36 | return 0; |
|
|
37 | |
|
|
38 | rxvt_img *img = new rxvt_img ( |
|
|
39 | s, |
|
|
40 | XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)), |
|
|
41 | 0, |
|
|
42 | 0, |
|
|
43 | root_pm_w, |
|
|
44 | root_pm_h |
|
|
45 | ); |
|
|
46 | |
|
|
47 | img->pm = root_pixmap; |
|
|
48 | img->ref = new pixref (root_pm_w, root_pm_h); |
|
|
49 | img->ref->ours = false; |
|
|
50 | |
|
|
51 | return img; |
|
|
52 | } |
|
|
53 | |
|
|
54 | # if HAVE_PIXBUF |
|
|
55 | rxvt_img * |
|
|
56 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
|
|
57 | { |
|
|
58 | Display *dpy = s->display->dpy; |
|
|
59 | |
|
|
60 | int width = gdk_pixbuf_get_width (pb); |
|
|
61 | int height = gdk_pixbuf_get_height (pb); |
|
|
62 | |
|
|
63 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
|
|
64 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n"); |
|
|
65 | |
|
|
66 | // since we require rgb24/argb32 formats from xrender we assume |
|
|
67 | // that both 24 and 32 bpp MUST be supported by any screen that supports xrender |
|
|
68 | int depth = gdk_pixbuf_get_has_alpha (pb) ? 32 : 24; |
|
|
69 | |
|
|
70 | int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
|
|
71 | |
|
|
72 | XImage xi; |
|
|
73 | |
|
|
74 | xi.width = width; |
|
|
75 | xi.height = height; |
|
|
76 | xi.xoffset = 0; |
|
|
77 | xi.format = ZPixmap; |
|
|
78 | xi.byte_order = ImageByteOrder (dpy); |
|
|
79 | xi.bitmap_unit = 0; //XY only, unused |
|
|
80 | xi.bitmap_bit_order = 0; //XY only, unused |
|
|
81 | xi.bitmap_pad = BitmapPad (dpy); |
|
|
82 | xi.depth = depth; |
|
|
83 | xi.bytes_per_line = 0; |
|
|
84 | xi.bits_per_pixel = 32; //Z only |
|
|
85 | xi.red_mask = 0x00000000; //Z only, unused |
|
|
86 | xi.green_mask = 0x00000000; //Z only, unused |
|
|
87 | xi.blue_mask = 0x00000000; //Z only, unused |
|
|
88 | xi.obdata = 0; // probably unused |
|
|
89 | |
|
|
90 | bool byte_order_mismatch = byte_order != xi.byte_order; |
|
|
91 | |
|
|
92 | if (!XInitImage (&xi)) |
|
|
93 | rxvt_fatal ("unable to initialise ximage, please report.\n"); |
|
|
94 | |
|
|
95 | if (height > INT_MAX / xi.bytes_per_line) |
|
|
96 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); |
|
|
97 | |
|
|
98 | xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); |
|
|
99 | |
|
|
100 | int rowstride = gdk_pixbuf_get_rowstride (pb); |
|
|
101 | |
|
|
102 | assert (3 + (depth == 32) == gdk_pixbuf_get_n_channels (pb)); |
|
|
103 | unsigned char *row = gdk_pixbuf_get_pixels (pb); |
|
|
104 | char *line = xi.data; |
|
|
105 | |
|
|
106 | for (int y = 0; y < height; y++) |
|
|
107 | { |
|
|
108 | unsigned char *src = row; |
|
|
109 | uint32_t *dst = (uint32_t *)line; |
|
|
110 | |
|
|
111 | if (depth == 24) |
|
|
112 | for (int x = 0; x < width; x++) |
|
|
113 | { |
|
|
114 | uint8_t r = *src++; |
|
|
115 | uint8_t g = *src++; |
|
|
116 | uint8_t b = *src++; |
|
|
117 | |
|
|
118 | uint32_t v = (r << 16) | (g << 8) | b; |
|
|
119 | |
|
|
120 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
|
|
121 | v = ecb_bswap32 (v); |
|
|
122 | |
|
|
123 | *dst++ = v; |
|
|
124 | } |
|
|
125 | else |
|
|
126 | for (int x = 0; x < width; x++) |
|
|
127 | { |
|
|
128 | uint32_t v = *(uint32_t *)src; src += 4; |
|
|
129 | |
|
|
130 | if (ecb_big_endian ()) |
|
|
131 | v = ecb_bswap32 (v); |
|
|
132 | |
|
|
133 | v = ecb_rotl32 (v, 8); // abgr to bgra |
|
|
134 | |
|
|
135 | if (!byte_order_mismatch) |
|
|
136 | v = ecb_bswap32 (v); |
|
|
137 | |
|
|
138 | *dst++ = v; |
|
|
139 | } |
|
|
140 | |
|
|
141 | row += rowstride; |
|
|
142 | line += xi.bytes_per_line; |
|
|
143 | } |
|
|
144 | |
|
|
145 | rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, depth == 24 ? PictStandardRGB24 : PictStandardARGB32), 0, 0, width, height); |
|
|
146 | img->alloc (); |
|
|
147 | |
|
|
148 | GC gc = XCreateGC (dpy, img->pm, 0, 0); |
|
|
149 | XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); |
|
|
150 | XFreeGC (dpy, gc); |
|
|
151 | |
|
|
152 | free (xi.data); |
|
|
153 | |
|
|
154 | return img; |
|
|
155 | } |
|
|
156 | |
|
|
157 | rxvt_img * |
|
|
158 | rxvt_img::new_from_file (rxvt_screen *s, const char *filename) |
|
|
159 | { |
|
|
160 | GError *err = 0; |
|
|
161 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
|
|
162 | |
|
|
163 | if (!pb) |
|
|
164 | rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
|
|
165 | |
|
|
166 | rxvt_img *img = new_from_pixbuf (s, pb); |
|
|
167 | |
|
|
168 | g_object_unref (pb); |
|
|
169 | |
|
|
170 | return img; |
|
|
171 | } |
|
|
172 | # endif |
|
|
173 | |
|
|
174 | void |
|
|
175 | rxvt_img::destroy () |
|
|
176 | { |
|
|
177 | if (--ref->cnt) |
|
|
178 | return; |
|
|
179 | |
|
|
180 | if (pm && ref->ours) |
|
|
181 | XFreePixmap (s->display->dpy, pm); |
|
|
182 | |
|
|
183 | delete ref; |
|
|
184 | } |
|
|
185 | |
|
|
186 | rxvt_img::~rxvt_img () |
|
|
187 | { |
|
|
188 | destroy (); |
|
|
189 | } |
|
|
190 | |
|
|
191 | void |
|
|
192 | rxvt_img::alloc () |
| 8 | { |
193 | { |
| 9 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
194 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
|
|
195 | ref = new pixref (w, h); |
| 10 | } |
196 | } |
| 11 | |
197 | |
| 12 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap) |
198 | Picture |
| 13 | : s(screen), pm(pixmap), w(width), h(height), format(format) |
199 | rxvt_img::src_picture () |
| 14 | { |
200 | { |
| 15 | } |
201 | Display *dpy = s->display->dpy; |
| 16 | |
202 | |
| 17 | rxvt_img::~rxvt_img () |
203 | XRenderPictureAttributes pa; |
|
|
204 | pa.repeat = repeat; |
|
|
205 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
|
|
206 | |
|
|
207 | return pic; |
|
|
208 | } |
|
|
209 | |
|
|
210 | void |
|
|
211 | rxvt_img::unshare () |
| 18 | { |
212 | { |
| 19 | if (pm) |
213 | if (ref->cnt == 1 && ref->ours) |
|
|
214 | return; |
|
|
215 | |
|
|
216 | Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); |
|
|
217 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
|
|
218 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
| 20 | XFreePixmap (s->display->dpy, pm); |
219 | XFreeGC (s->display->dpy, gc); |
|
|
220 | |
|
|
221 | destroy (); |
|
|
222 | |
|
|
223 | pm = pm2; |
|
|
224 | ref = new pixref (ref->w, ref->h); |
| 21 | } |
225 | } |
| 22 | |
226 | |
| 23 | void |
227 | void |
| 24 | rxvt_img::fill (const rxvt_color &c) |
228 | rxvt_img::fill (const rxvt_color &c) |
| 25 | { |
229 | { |
| … | |
… | |
| 28 | GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
232 | GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
| 29 | XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
233 | XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
| 30 | XFreeGC (s->display->dpy, gc); |
234 | XFreeGC (s->display->dpy, gc); |
| 31 | } |
235 | } |
| 32 | |
236 | |
|
|
237 | static void |
|
|
238 | get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
|
|
239 | { |
|
|
240 | double sigma = radius / 2.0; |
|
|
241 | double scale = sqrt (2.0 * M_PI) * sigma; |
|
|
242 | double sum = 0.0; |
|
|
243 | |
|
|
244 | for (int i = 0; i < width; i++) |
|
|
245 | { |
|
|
246 | double x = i - width / 2; |
|
|
247 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
|
|
248 | sum += kernel[i]; |
|
|
249 | } |
|
|
250 | |
|
|
251 | params[0] = XDoubleToFixed (width); |
|
|
252 | params[1] = XDoubleToFixed (1); |
|
|
253 | |
|
|
254 | for (int i = 0; i < width; i++) |
|
|
255 | params[i+2] = XDoubleToFixed (kernel[i] / sum); |
|
|
256 | } |
|
|
257 | |
|
|
258 | rxvt_img * |
|
|
259 | rxvt_img::blur (int rh, int rv) |
|
|
260 | { |
|
|
261 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
|
|
262 | return clone (); |
|
|
263 | |
|
|
264 | Display *dpy = s->display->dpy; |
|
|
265 | int size = max (rh, rv) * 2 + 1; |
|
|
266 | double *kernel = (double *)malloc (size * sizeof (double)); |
|
|
267 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
|
|
268 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
|
|
269 | img->alloc (); |
|
|
270 | |
|
|
271 | XRenderPictureAttributes pa; |
|
|
272 | pa.repeat = RepeatPad; |
|
|
273 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
|
|
274 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
|
|
275 | |
|
|
276 | Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); |
|
|
277 | Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); |
|
|
278 | XFreePixmap (dpy, tmp_pm); |
|
|
279 | |
|
|
280 | if (kernel && params) |
|
|
281 | { |
|
|
282 | size = rh * 2 + 1; |
|
|
283 | get_gaussian_kernel (rh, size, kernel, params); |
|
|
284 | |
|
|
285 | XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
|
|
286 | XRenderComposite (dpy, |
|
|
287 | PictOpSrc, |
|
|
288 | src, |
|
|
289 | None, |
|
|
290 | tmp, |
|
|
291 | 0, 0, |
|
|
292 | 0, 0, |
|
|
293 | 0, 0, |
|
|
294 | w, h); |
|
|
295 | |
|
|
296 | size = rv * 2 + 1; |
|
|
297 | get_gaussian_kernel (rv, size, kernel, params); |
|
|
298 | ::swap (params[0], params[1]); |
|
|
299 | |
|
|
300 | XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2); |
|
|
301 | XRenderComposite (dpy, |
|
|
302 | PictOpSrc, |
|
|
303 | tmp, |
|
|
304 | None, |
|
|
305 | dst, |
|
|
306 | 0, 0, |
|
|
307 | 0, 0, |
|
|
308 | 0, 0, |
|
|
309 | w, h); |
|
|
310 | } |
|
|
311 | |
|
|
312 | free (kernel); |
|
|
313 | free (params); |
|
|
314 | XRenderFreePicture (dpy, src); |
|
|
315 | XRenderFreePicture (dpy, dst); |
|
|
316 | XRenderFreePicture (dpy, tmp); |
|
|
317 | |
|
|
318 | return img; |
|
|
319 | } |
|
|
320 | |
|
|
321 | static Picture |
|
|
322 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha) |
|
|
323 | { |
|
|
324 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
|
|
325 | |
|
|
326 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
|
|
327 | XRenderPictureAttributes pa; |
|
|
328 | pa.repeat = RepeatNormal; |
|
|
329 | pa.component_alpha = component_alpha; |
|
|
330 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
|
|
331 | |
|
|
332 | XFreePixmap (dpy, pixmap); |
|
|
333 | |
|
|
334 | return mask; |
|
|
335 | } |
|
|
336 | |
|
|
337 | static void |
|
|
338 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
|
|
339 | { |
|
|
340 | int32_t x = clamp (c, cl0, cl1); |
|
|
341 | c -= x; |
|
|
342 | xc = x; |
|
|
343 | } |
|
|
344 | |
|
|
345 | static bool |
|
|
346 | extract (int32_t cl0, int32_t cl1, int32_t &r, int32_t &g, int32_t &b, int32_t &a, unsigned short &xr, unsigned short &xg, unsigned short &xb, unsigned short &xa) |
|
|
347 | { |
|
|
348 | extract (cl0, cl1, r, xr); |
|
|
349 | extract (cl0, cl1, g, xg); |
|
|
350 | extract (cl0, cl1, b, xb); |
|
|
351 | extract (cl0, cl1, a, xa); |
|
|
352 | |
|
|
353 | return xr | xg | xb | xa; |
|
|
354 | } |
|
|
355 | |
| 33 | void |
356 | void |
| 34 | rxvt_img::blur (int rh, int rv) |
357 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
| 35 | { |
358 | { |
| 36 | //TODO |
359 | unshare (); |
|
|
360 | |
|
|
361 | Display *dpy = s->display->dpy; |
|
|
362 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
|
|
363 | |
|
|
364 | // loop should not be needed for brightness, as only -1..1 makes sense |
|
|
365 | //while (r | g | b | a) |
|
|
366 | { |
|
|
367 | unsigned short xr, xg, xb, xa; |
|
|
368 | XRenderColor mask_c; |
|
|
369 | |
|
|
370 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
371 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
|
|
372 | |
|
|
373 | if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
374 | { |
|
|
375 | XRenderColor mask_w = { 65535, 65535, 65535, 65535 }; |
|
|
376 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
|
|
377 | mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing |
|
|
378 | mask_c.green = -mask_c.green; |
|
|
379 | mask_c.blue = -mask_c.blue; |
|
|
380 | mask_c.alpha = -mask_c.alpha; |
|
|
381 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
|
|
382 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
|
|
383 | } |
|
|
384 | } |
|
|
385 | |
|
|
386 | XRenderFreePicture (dpy, dst); |
| 37 | } |
387 | } |
| 38 | |
388 | |
| 39 | void |
389 | void |
| 40 | rxvt_img::brightness (double r, double g, double b, double a) |
390 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
| 41 | { |
391 | { |
| 42 | //TODO |
392 | if (r < 0 || g < 0 || b < 0 || a < 0) |
| 43 | } |
393 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
| 44 | |
394 | |
| 45 | void |
395 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
| 46 | rxvt_img::contrast (double r, double g, double b, double a) |
396 | img->alloc (); |
| 47 | { |
|
|
| 48 | //TODO |
|
|
| 49 | } |
|
|
| 50 | |
397 | |
| 51 | void |
398 | { |
| 52 | rxvt_img::render (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y) |
399 | rxvt_color empty; |
| 53 | { |
400 | empty.set (s, rgba (0, 0, 0, 0)); |
| 54 | //TODO |
401 | img->fill (empty); |
| 55 | } |
402 | } |
| 56 | |
403 | |
|
|
404 | // premultiply (yeah, these are not exact, sue me or fix it) |
|
|
405 | r = (r * (a >> 8)) >> 8; |
|
|
406 | g = (g * (a >> 8)) >> 8; |
|
|
407 | b = (b * (a >> 8)) >> 8; |
|
|
408 | |
|
|
409 | Display *dpy = s->display->dpy; |
|
|
410 | |
|
|
411 | Picture src = src_picture (); |
|
|
412 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
|
|
413 | Picture mul = create_xrender_mask (dpy, pm, True, True); |
|
|
414 | |
|
|
415 | //TODO: this operator does not yet implement some useful contrast |
|
|
416 | while (r | g | b | a) |
|
|
417 | { |
|
|
418 | unsigned short xr, xg, xb, xa; |
|
|
419 | XRenderColor mask_c; |
|
|
420 | |
|
|
421 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
422 | { |
|
|
423 | XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1); |
|
|
424 | XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
425 | } |
|
|
426 | } |
|
|
427 | |
|
|
428 | XRenderFreePicture (dpy, mul); |
|
|
429 | XRenderFreePicture (dpy, dst); |
|
|
430 | XRenderFreePicture (dpy, src); |
|
|
431 | |
|
|
432 | ::swap (img->ref, ref); |
|
|
433 | ::swap (img->pm , pm ); |
|
|
434 | |
|
|
435 | delete img; |
|
|
436 | } |
|
|
437 | |
| 57 | rxvt_img * |
438 | rxvt_img * |
| 58 | rxvt_img::copy () |
439 | rxvt_img::clone () |
| 59 | { |
440 | { |
| 60 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
441 | return new rxvt_img (*this); |
| 61 | Pixmap pm2 = XCreatePixmap (s->display->dpy, pm, w, h, format->depth); |
|
|
| 62 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0); |
|
|
| 63 | XFreeGC (s->display->dpy, gc); |
|
|
| 64 | return new rxvt_img (s, format, w, h, pm2); |
|
|
| 65 | } |
442 | } |
| 66 | |
443 | |
|
|
444 | static XRenderPictFormat * |
|
|
445 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
|
|
446 | { |
|
|
447 | if (format->direct.alphaMask) |
|
|
448 | return format; // already has alpha |
|
|
449 | |
|
|
450 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
|
|
451 | if (format->type == PictTypeDirect) |
|
|
452 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
|
|
453 | if (f->direct.alphaMask |
|
|
454 | && f->type == PictTypeDirect |
|
|
455 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
|
|
456 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
|
|
457 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
|
|
458 | return f; |
|
|
459 | |
|
|
460 | // should be a very good fallback |
|
|
461 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
|
|
462 | } |
|
|
463 | |
| 67 | rxvt_img * |
464 | rxvt_img * |
|
|
465 | rxvt_img::reify () |
|
|
466 | { |
|
|
467 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
|
|
468 | return clone (); |
|
|
469 | |
|
|
470 | Display *dpy = s->display->dpy; |
|
|
471 | |
|
|
472 | // add an alpha channel if... |
|
|
473 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
|
|
474 | && (x || y) // we need one because of non-zero offset |
|
|
475 | && repeat == RepeatNone; // and we have no good pixels to fill with |
|
|
476 | |
|
|
477 | rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
|
|
478 | img->alloc (); |
|
|
479 | |
|
|
480 | Picture src = src_picture (); |
|
|
481 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
482 | |
|
|
483 | if (alpha) |
|
|
484 | { |
|
|
485 | XRenderColor rc = { 0, 0, 0, 0 }; |
|
|
486 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
|
|
487 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h); |
|
|
488 | } |
|
|
489 | else |
|
|
490 | XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h); |
|
|
491 | |
|
|
492 | XRenderFreePicture (dpy, src); |
|
|
493 | XRenderFreePicture (dpy, dst); |
|
|
494 | |
|
|
495 | return img; |
|
|
496 | } |
|
|
497 | |
|
|
498 | rxvt_img * |
|
|
499 | rxvt_img::sub_rect (int x, int y, int width, int height) |
|
|
500 | { |
|
|
501 | rxvt_img *img = clone (); |
|
|
502 | |
|
|
503 | img->x += x; |
|
|
504 | img->y += y; |
|
|
505 | |
|
|
506 | if (w != width || h != height) |
|
|
507 | { |
|
|
508 | img->w = width; |
|
|
509 | img->h = height; |
|
|
510 | |
|
|
511 | rxvt_img *img2 = img->reify (); |
|
|
512 | delete img; |
|
|
513 | img = img2; |
|
|
514 | } |
|
|
515 | |
|
|
516 | return img; |
|
|
517 | } |
|
|
518 | |
|
|
519 | rxvt_img * |
| 68 | rxvt_img::transform (int new_width, int new_height, double matrix[16]) |
520 | rxvt_img::transform (int new_width, int new_height, double matrix[9]) |
| 69 | { |
521 | { |
| 70 | //TODO |
522 | rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat); |
|
|
523 | img->alloc (); |
|
|
524 | |
|
|
525 | Display *dpy = s->display->dpy; |
|
|
526 | Picture src = src_picture (); |
|
|
527 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
528 | |
|
|
529 | XTransform xfrm; |
|
|
530 | |
|
|
531 | for (int i = 0; i < 3; ++i) |
|
|
532 | for (int j = 0; j < 3; ++j) |
|
|
533 | xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); |
|
|
534 | |
|
|
535 | xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO |
|
|
536 | xfrm.matrix [1][2] -= XDoubleToFixed (y); |
|
|
537 | |
|
|
538 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
|
|
539 | XRenderSetPictureTransform (dpy, src, &xfrm); |
|
|
540 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); |
|
|
541 | |
|
|
542 | XRenderFreePicture (dpy, src); |
|
|
543 | XRenderFreePicture (dpy, dst); |
|
|
544 | |
|
|
545 | return img; |
| 71 | } |
546 | } |
| 72 | |
547 | |
| 73 | rxvt_img * |
548 | rxvt_img * |
| 74 | rxvt_img::scale (int new_width, int new_height) |
549 | rxvt_img::scale (int new_width, int new_height) |
| 75 | { |
550 | { |
| 76 | // use transform |
551 | if (w == new_width && h == new_height) |
| 77 | //TODO |
552 | return clone (); |
| 78 | } |
|
|
| 79 | |
553 | |
|
|
554 | double matrix[9] = { |
|
|
555 | w / (double)new_width, 0, 0, |
|
|
556 | 0, h / (double)new_height, 0, |
|
|
557 | 0, 0, 1 |
|
|
558 | }; |
|
|
559 | |
|
|
560 | int old_repeat_mode = repeat; |
|
|
561 | repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems |
|
|
562 | |
|
|
563 | rxvt_img *img = transform (new_width, new_height, matrix); |
|
|
564 | |
|
|
565 | repeat = old_repeat_mode; |
|
|
566 | img->repeat = repeat; |
|
|
567 | |
|
|
568 | return img; |
|
|
569 | } |
|
|
570 | |
|
|
571 | rxvt_img * |
|
|
572 | rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi) |
|
|
573 | { |
|
|
574 | double s = sin (phi); |
|
|
575 | double c = cos (phi); |
|
|
576 | |
|
|
577 | double matrix[9] = { |
|
|
578 | c, -s, -c * x + s * y + x, |
|
|
579 | s, c, -s * x - c * y + y, |
|
|
580 | 0, 0, 1 |
|
|
581 | }; |
|
|
582 | |
|
|
583 | return transform (new_width, new_height, matrix); |
|
|
584 | } |
|
|
585 | |
|
|
586 | rxvt_img * |
|
|
587 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg) |
|
|
588 | { |
|
|
589 | if (new_format == format) |
|
|
590 | return clone (); |
|
|
591 | |
|
|
592 | rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); |
|
|
593 | img->alloc (); |
|
|
594 | |
|
|
595 | Display *dpy = s->display->dpy; |
|
|
596 | Picture src = src_picture (); |
|
|
597 | Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
|
|
598 | int op = PictOpSrc; |
|
|
599 | |
|
|
600 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
|
|
601 | { |
|
|
602 | // does it have to be that complicated |
|
|
603 | rgba c; |
|
|
604 | bg.get (c); |
|
|
605 | |
|
|
606 | XRenderColor rc = { c.r, c.g, c.b, 0xffff }; |
|
|
607 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
|
|
608 | |
|
|
609 | op = PictOpOver; |
|
|
610 | } |
|
|
611 | |
|
|
612 | XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
613 | |
|
|
614 | XRenderFreePicture (dpy, src); |
|
|
615 | XRenderFreePicture (dpy, dst); |
|
|
616 | |
|
|
617 | return img; |
|
|
618 | } |
|
|
619 | |
|
|
620 | rxvt_img * |
|
|
621 | rxvt_img::blend (rxvt_img *img, double factor) |
|
|
622 | { |
|
|
623 | rxvt_img *img2 = clone (); |
|
|
624 | Display *dpy = s->display->dpy; |
|
|
625 | Picture src = img->src_picture (); |
|
|
626 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
|
|
627 | Picture mask = create_xrender_mask (dpy, img->pm, False, False); |
|
|
628 | |
|
|
629 | XRenderColor mask_c; |
|
|
630 | |
|
|
631 | mask_c.alpha = float_to_component (factor); |
|
|
632 | mask_c.red = |
|
|
633 | mask_c.green = |
|
|
634 | mask_c.blue = 0; |
|
|
635 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
636 | |
|
|
637 | XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
638 | |
|
|
639 | XRenderFreePicture (dpy, src); |
|
|
640 | XRenderFreePicture (dpy, dst); |
|
|
641 | XRenderFreePicture (dpy, mask); |
|
|
642 | |
|
|
643 | return img2; |
|
|
644 | } |
| 80 | |
645 | |
| 81 | #endif |
646 | #endif |
| 82 | |
647 | |
