1 |
#include <math.h> |
2 |
#include "../config.h" |
3 |
#include "rxvt.h" |
4 |
|
5 |
#if HAVE_IMG |
6 |
|
7 |
rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
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); |
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xi.depth = depth; |
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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 |
{ |
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unsigned char *src = row; |
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uint32_t *dst = (uint32_t *)line; |
110 |
|
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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 |
} |
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else |
126 |
for (int x = 0; x < width; x++) |
127 |
{ |
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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) |
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v = ecb_bswap32 (v); |
137 |
|
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*dst++ = v; |
139 |
} |
140 |
|
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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 |
|
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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 |
|
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return img; |
155 |
} |
156 |
|
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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 |
} |
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# endif |
173 |
|
174 |
void |
175 |
rxvt_img::destroy () |
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{ |
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if (--ref->cnt) |
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return; |
179 |
|
180 |
if (pm && ref->ours) |
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XFreePixmap (s->display->dpy, pm); |
182 |
|
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delete ref; |
184 |
} |
185 |
|
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rxvt_img::~rxvt_img () |
187 |
{ |
188 |
destroy (); |
189 |
} |
190 |
|
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void |
192 |
rxvt_img::alloc () |
193 |
{ |
194 |
pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
195 |
ref = new pixref (w, h); |
196 |
} |
197 |
|
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Picture |
199 |
rxvt_img::src_picture () |
200 |
{ |
201 |
Display *dpy = s->display->dpy; |
202 |
|
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XRenderPictureAttributes pa; |
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pa.repeat = repeat; |
205 |
Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
206 |
|
207 |
return pic; |
208 |
} |
209 |
|
210 |
void |
211 |
rxvt_img::unshare () |
212 |
{ |
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); |
219 |
XFreeGC (s->display->dpy, gc); |
220 |
|
221 |
destroy (); |
222 |
|
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pm = pm2; |
224 |
ref = new pixref (ref->w, ref->h); |
225 |
} |
226 |
|
227 |
void |
228 |
rxvt_img::fill (const rxvt_color &c) |
229 |
{ |
230 |
XGCValues gcv; |
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gcv.foreground = c; |
232 |
GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
233 |
XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
234 |
XFreeGC (s->display->dpy, gc); |
235 |
} |
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; |
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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 void |
322 |
extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
323 |
{ |
324 |
int32_t x = clamp (c, cl0, cl1); |
325 |
c -= x; |
326 |
xc = x; |
327 |
} |
328 |
|
329 |
static bool |
330 |
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) |
331 |
{ |
332 |
extract (cl0, cl1, r, xr); |
333 |
extract (cl0, cl1, g, xg); |
334 |
extract (cl0, cl1, b, xb); |
335 |
extract (cl0, cl1, a, xa); |
336 |
|
337 |
return xr | xg | xb | xa; |
338 |
} |
339 |
|
340 |
void |
341 |
rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
342 |
{ |
343 |
unshare (); |
344 |
|
345 |
Display *dpy = s->display->dpy; |
346 |
Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
347 |
|
348 |
// loop should not be needed for brightness, as only -1..1 makes sense |
349 |
//while (r | g | b | a) |
350 |
{ |
351 |
unsigned short xr, xg, xb, xa; |
352 |
XRenderColor mask_c; |
353 |
|
354 |
if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
355 |
XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
356 |
|
357 |
if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
358 |
{ |
359 |
XRenderColor mask_w = { 65535, 65535, 65535, 65535 }; |
360 |
XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
361 |
mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing |
362 |
mask_c.green = -mask_c.green; |
363 |
mask_c.blue = -mask_c.blue; |
364 |
mask_c.alpha = -mask_c.alpha; |
365 |
XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
366 |
XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
367 |
} |
368 |
} |
369 |
|
370 |
|
371 |
XRenderFreePicture (dpy, dst); |
372 |
} |
373 |
|
374 |
void |
375 |
rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
376 |
{ |
377 |
if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) |
378 |
{ |
379 |
rxvt_warn ("rxvt_img::contrast operation not supported on this display, RENDER extension too old.\n"); |
380 |
return; |
381 |
} |
382 |
|
383 |
unshare (); |
384 |
|
385 |
Display *dpy = s->display->dpy; |
386 |
Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
387 |
|
388 |
XRenderColor mask_c; |
389 |
mask_c.red = r; |
390 |
mask_c.green = g; |
391 |
mask_c.blue = b; |
392 |
mask_c.alpha = a; |
393 |
XRenderFillRectangle (dpy, PictOpMultiply, dst, &mask_c, 0, 0, w, h); |
394 |
|
395 |
XRenderFreePicture (dpy, dst); |
396 |
} |
397 |
|
398 |
rxvt_img * |
399 |
rxvt_img::clone () |
400 |
{ |
401 |
return new rxvt_img (*this); |
402 |
} |
403 |
|
404 |
static XRenderPictFormat * |
405 |
find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
406 |
{ |
407 |
if (format->direct.alphaMask) |
408 |
return format; // already has alpha |
409 |
|
410 |
// try to find a suitable alpha format, one bit alpha is enough for our purposes |
411 |
if (format->type == PictTypeDirect) |
412 |
for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
413 |
if (f->direct.alphaMask |
414 |
&& f->type == PictTypeDirect |
415 |
&& ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
416 |
&& ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
417 |
&& ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
418 |
return f; |
419 |
|
420 |
// should be a very good fallback |
421 |
return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
422 |
} |
423 |
|
424 |
rxvt_img * |
425 |
rxvt_img::reify () |
426 |
{ |
427 |
if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
428 |
return clone (); |
429 |
|
430 |
Display *dpy = s->display->dpy; |
431 |
|
432 |
// add an alpha channel if... |
433 |
bool alpha = !format->direct.alphaMask // pixmap has none yet |
434 |
&& (x || y) // we need one because of non-zero offset |
435 |
&& repeat == RepeatNone; // and we have no good pixels to fill with |
436 |
|
437 |
rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
438 |
img->alloc (); |
439 |
|
440 |
Picture src = src_picture (); |
441 |
Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
442 |
|
443 |
if (alpha) |
444 |
{ |
445 |
XRenderColor rc = { 0, 0, 0, 0 }; |
446 |
XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
447 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h); |
448 |
} |
449 |
else |
450 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h); |
451 |
|
452 |
XRenderFreePicture (dpy, src); |
453 |
XRenderFreePicture (dpy, dst); |
454 |
|
455 |
return img; |
456 |
} |
457 |
|
458 |
rxvt_img * |
459 |
rxvt_img::sub_rect (int x, int y, int width, int height) |
460 |
{ |
461 |
rxvt_img *img = clone (); |
462 |
|
463 |
img->x += x; |
464 |
img->y += y; |
465 |
|
466 |
if (w != width || h != height) |
467 |
{ |
468 |
img->w = width; |
469 |
img->h = height; |
470 |
|
471 |
rxvt_img *img2 = img->reify (); |
472 |
delete img; |
473 |
img = img2; |
474 |
} |
475 |
|
476 |
return img; |
477 |
} |
478 |
|
479 |
rxvt_img * |
480 |
rxvt_img::transform (int new_width, int new_height, double matrix[9]) |
481 |
{ |
482 |
rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat); |
483 |
img->alloc (); |
484 |
|
485 |
Display *dpy = s->display->dpy; |
486 |
Picture src = src_picture (); |
487 |
Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
488 |
|
489 |
XTransform xfrm; |
490 |
|
491 |
for (int i = 0; i < 3; ++i) |
492 |
for (int j = 0; j < 3; ++j) |
493 |
xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); |
494 |
|
495 |
xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO |
496 |
xfrm.matrix [1][2] -= XDoubleToFixed (y); |
497 |
|
498 |
XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
499 |
XRenderSetPictureTransform (dpy, src, &xfrm); |
500 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); |
501 |
|
502 |
XRenderFreePicture (dpy, src); |
503 |
XRenderFreePicture (dpy, dst); |
504 |
|
505 |
return img; |
506 |
} |
507 |
|
508 |
rxvt_img * |
509 |
rxvt_img::scale (int new_width, int new_height) |
510 |
{ |
511 |
if (w == new_width && h == new_height) |
512 |
return clone (); |
513 |
|
514 |
double matrix[9] = { |
515 |
w / (double)new_width, 0, 0, |
516 |
0, h / (double)new_height, 0, |
517 |
0, 0, 1 |
518 |
}; |
519 |
|
520 |
int old_repeat_mode = repeat; |
521 |
repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems |
522 |
|
523 |
rxvt_img *img = transform (new_width, new_height, matrix); |
524 |
|
525 |
repeat = old_repeat_mode; |
526 |
img->repeat = repeat; |
527 |
|
528 |
return img; |
529 |
} |
530 |
|
531 |
rxvt_img * |
532 |
rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi) |
533 |
{ |
534 |
double s = sin (phi); |
535 |
double c = cos (phi); |
536 |
|
537 |
double matrix[9] = { |
538 |
c, -s, -c * x + s * y + x, |
539 |
s, c, -s * x - c * y + y, |
540 |
0, 0, 1 |
541 |
}; |
542 |
|
543 |
return transform (new_width, new_height, matrix); |
544 |
} |
545 |
|
546 |
rxvt_img * |
547 |
rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg) |
548 |
{ |
549 |
if (new_format == format) |
550 |
return clone (); |
551 |
|
552 |
rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); |
553 |
img->alloc (); |
554 |
|
555 |
Display *dpy = s->display->dpy; |
556 |
Picture src = src_picture (); |
557 |
Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
558 |
int op = PictOpSrc; |
559 |
|
560 |
if (format->direct.alphaMask && !new_format->direct.alphaMask) |
561 |
{ |
562 |
// does it have to be that complicated |
563 |
rgba c; |
564 |
bg.get (c); |
565 |
|
566 |
XRenderColor rc = { c.r, c.g, c.b, 0xffff }; |
567 |
XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
568 |
|
569 |
op = PictOpOver; |
570 |
} |
571 |
|
572 |
XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
573 |
|
574 |
XRenderFreePicture (dpy, src); |
575 |
XRenderFreePicture (dpy, dst); |
576 |
|
577 |
return img; |
578 |
} |
579 |
|
580 |
rxvt_img * |
581 |
rxvt_img::blend (rxvt_img *img, double factor) |
582 |
{ |
583 |
rxvt_img *img2 = clone (); |
584 |
Display *dpy = s->display->dpy; |
585 |
Picture src = img->src_picture (); |
586 |
Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
587 |
|
588 |
Pixmap pixmap = XCreatePixmap (dpy, img->pm, 1, 1, 8); |
589 |
XRenderPictFormat *format = XRenderFindStandardFormat (dpy, PictStandardA8); |
590 |
XRenderPictureAttributes pa; |
591 |
pa.repeat = True; |
592 |
Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); |
593 |
XFreePixmap (dpy, pixmap); |
594 |
|
595 |
XRenderColor mask_c; |
596 |
|
597 |
mask_c.alpha = float_to_component (factor); |
598 |
mask_c.red = |
599 |
mask_c.green = |
600 |
mask_c.blue = 0; |
601 |
XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
602 |
|
603 |
XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); |
604 |
|
605 |
XRenderFreePicture (dpy, src); |
606 |
XRenderFreePicture (dpy, dst); |
607 |
XRenderFreePicture (dpy, mask); |
608 |
|
609 |
return img2; |
610 |
} |
611 |
|
612 |
#endif |
613 |
|