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 |
#if 0 |
20 |
rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap) |
21 |
: s(screen), x(0), y(0), w(width), h(height), format(format), repeat(RepeatNormal), shared(false), pm(pixmap) |
22 |
{ |
23 |
} |
24 |
#endif |
25 |
|
26 |
rxvt_img * |
27 |
rxvt_img::new_from_root (rxvt_screen *s) |
28 |
{ |
29 |
Display *dpy = s->display->dpy; |
30 |
unsigned int root_pm_w, root_pm_h; |
31 |
Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]); |
32 |
if (root_pixmap == None) |
33 |
root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]); |
34 |
|
35 |
if (root_pixmap == None) |
36 |
return 0; |
37 |
|
38 |
Window wdummy; |
39 |
int idummy; |
40 |
unsigned int udummy; |
41 |
|
42 |
if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pm_w, &root_pm_h, &udummy, &udummy)) |
43 |
return 0; |
44 |
|
45 |
rxvt_img *img = new rxvt_img ( |
46 |
s, |
47 |
XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)), |
48 |
0, |
49 |
0, |
50 |
root_pm_w, |
51 |
root_pm_h |
52 |
); |
53 |
|
54 |
img->pm = root_pixmap; |
55 |
img->ref = new pixref (root_pm_w, root_pm_h); |
56 |
img->ref->ours = false; |
57 |
|
58 |
return img; |
59 |
} |
60 |
|
61 |
rxvt_img * |
62 |
rxvt_img::new_from_file (rxvt_screen *s, const char *filename) |
63 |
{ |
64 |
GError *err = 0; |
65 |
GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
66 |
|
67 |
if (!pb) |
68 |
rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
69 |
|
70 |
rxvt_img *img = new rxvt_img ( |
71 |
s, |
72 |
XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24), |
73 |
0, |
74 |
0, |
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gdk_pixbuf_get_width (pb), |
76 |
gdk_pixbuf_get_height (pb) |
77 |
); |
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img->alloc (); |
79 |
img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0); |
80 |
|
81 |
g_object_unref (pb); |
82 |
|
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return img; |
84 |
} |
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|
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void |
87 |
rxvt_img::destroy () |
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{ |
89 |
if (--ref->cnt) |
90 |
return; |
91 |
|
92 |
if (pm && ref->ours) |
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XFreePixmap (s->display->dpy, pm); |
94 |
|
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delete ref; |
96 |
} |
97 |
|
98 |
rxvt_img::~rxvt_img () |
99 |
{ |
100 |
destroy (); |
101 |
} |
102 |
|
103 |
void |
104 |
rxvt_img::alloc () |
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{ |
106 |
pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
107 |
ref = new pixref (w, h); |
108 |
} |
109 |
|
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Picture |
111 |
rxvt_img::src_picture () |
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{ |
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Display *dpy = s->display->dpy; |
114 |
|
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XRenderPictureAttributes pa; |
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pa.repeat = repeat; |
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Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
118 |
|
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return pic; |
120 |
} |
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|
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void |
123 |
rxvt_img::unshare () |
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{ |
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if (ref->cnt == 1 && ref->ours) |
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return; |
127 |
|
128 |
//TODO: maybe should reify instead |
129 |
Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); |
130 |
GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
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XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
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XFreeGC (s->display->dpy, gc); |
133 |
|
134 |
destroy (); |
135 |
|
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pm = pm2; |
137 |
ref = new pixref (ref->w, ref->h); |
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} |
139 |
|
140 |
void |
141 |
rxvt_img::fill (const rxvt_color &c) |
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{ |
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XGCValues gcv; |
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gcv.foreground = c; |
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GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
146 |
XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
147 |
XFreeGC (s->display->dpy, gc); |
148 |
} |
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|
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static void |
151 |
get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
152 |
{ |
153 |
double sigma = radius / 2.0; |
154 |
double scale = sqrt (2.0 * M_PI) * sigma; |
155 |
double sum = 0.0; |
156 |
|
157 |
for (int i = 0; i < width; i++) |
158 |
{ |
159 |
double x = i - width / 2; |
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kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
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sum += kernel[i]; |
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} |
163 |
|
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params[0] = XDoubleToFixed (width); |
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params[1] = XDoubleToFixed (1); |
166 |
|
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for (int i = 0; i < width; i++) |
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params[i+2] = XDoubleToFixed (kernel[i] / sum); |
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} |
170 |
|
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rxvt_img * |
172 |
rxvt_img::blur (int rh, int rv) |
173 |
{ |
174 |
if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
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return clone (); |
176 |
|
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Display *dpy = s->display->dpy; |
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int size = max (rh, rv) * 2 + 1; |
179 |
double *kernel = (double *)malloc (size * sizeof (double)); |
180 |
XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
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rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
182 |
img->alloc (); |
183 |
|
184 |
Picture src = src_picture (); |
185 |
|
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XRenderPictureAttributes pa; |
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pa.repeat = RepeatPad; |
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Picture dst = XRenderCreatePicture (dpy, img->pm, format, CPRepeat, &pa); |
189 |
|
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Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); |
191 |
Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); |
192 |
XFreePixmap (dpy, tmp_pm); |
193 |
|
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if (kernel && params) |
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{ |
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size = rh * 2 + 1; |
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get_gaussian_kernel (rh, size, kernel, params); |
198 |
|
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XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
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XRenderComposite (dpy, |
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PictOpSrc, |
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src, |
203 |
None, |
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tmp, |
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0, 0, |
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0, 0, |
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0, 0, |
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w, h); |
209 |
|
210 |
size = rv * 2 + 1; |
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get_gaussian_kernel (rv, size, kernel, params); |
212 |
::swap (params[0], params[1]); |
213 |
|
214 |
XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
215 |
XRenderComposite (dpy, |
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PictOpSrc, |
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tmp, |
218 |
None, |
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dst, |
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0, 0, |
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0, 0, |
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0, 0, |
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w, h); |
224 |
} |
225 |
|
226 |
free (kernel); |
227 |
free (params); |
228 |
XRenderFreePicture (dpy, src); |
229 |
XRenderFreePicture (dpy, dst); |
230 |
XRenderFreePicture (dpy, tmp); |
231 |
|
232 |
return img; |
233 |
} |
234 |
|
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static Picture |
236 |
create_xrender_mask (Display *dpy, Drawable drawable, Bool argb) |
237 |
{ |
238 |
Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
239 |
|
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XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
241 |
XRenderPictureAttributes pa; |
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pa.repeat = True; |
243 |
Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); |
244 |
|
245 |
XFreePixmap (dpy, pixmap); |
246 |
|
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return mask; |
248 |
} |
249 |
|
250 |
void |
251 |
rxvt_img::brightness (unsigned short r, unsigned short g, unsigned short b, unsigned short a) |
252 |
{ |
253 |
Display *dpy = s->display->dpy; |
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Picture src = create_xrender_mask (dpy, pm, True); |
255 |
Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
256 |
|
257 |
XRenderColor mask_c; |
258 |
mask_c.red = r; |
259 |
mask_c.green = g; |
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mask_c.blue = b; |
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mask_c.alpha = a; |
262 |
XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
263 |
|
264 |
XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
265 |
|
266 |
XRenderFreePicture (dpy, src); |
267 |
XRenderFreePicture (dpy, dst); |
268 |
} |
269 |
|
270 |
void |
271 |
rxvt_img::contrast (unsigned short r, unsigned short g, unsigned short b, unsigned short a) |
272 |
{ |
273 |
if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) |
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return; |
275 |
|
276 |
Display *dpy = s->display->dpy; |
277 |
Picture src = create_xrender_mask (dpy, pm, True); |
278 |
Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
279 |
|
280 |
XRenderColor mask_c; |
281 |
mask_c.red = r; |
282 |
mask_c.green = g; |
283 |
mask_c.blue = b; |
284 |
mask_c.alpha = a; |
285 |
XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
286 |
|
287 |
XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
288 |
|
289 |
XRenderFreePicture (dpy, src); |
290 |
XRenderFreePicture (dpy, dst); |
291 |
} |
292 |
|
293 |
bool |
294 |
rxvt_img::render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y) |
295 |
{ |
296 |
Display *dpy = s->display->dpy; |
297 |
|
298 |
if (s->visual->c_class != TrueColor) |
299 |
return false; |
300 |
|
301 |
uint32_t red_mask, green_mask, blue_mask, alpha_mask; |
302 |
|
303 |
red_mask = (uint32_t)format->direct.redMask << format->direct.red; |
304 |
green_mask = (uint32_t)format->direct.greenMask << format->direct.green; |
305 |
blue_mask = (uint32_t)format->direct.blueMask << format->direct.blue; |
306 |
alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha; |
307 |
|
308 |
int width_r = ecb_popcount32 (red_mask); |
309 |
int width_g = ecb_popcount32 (green_mask); |
310 |
int width_b = ecb_popcount32 (blue_mask); |
311 |
int width_a = ecb_popcount32 (alpha_mask); |
312 |
|
313 |
if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8) |
314 |
return false; |
315 |
|
316 |
int sh_r = ecb_ctz32 (red_mask); |
317 |
int sh_g = ecb_ctz32 (green_mask); |
318 |
int sh_b = ecb_ctz32 (blue_mask); |
319 |
int sh_a = ecb_ctz32 (alpha_mask); |
320 |
|
321 |
if (width > 32767 || height > 32767) |
322 |
return false; |
323 |
|
324 |
XImage *ximage = XCreateImage (dpy, s->visual, format->depth, ZPixmap, 0, 0, |
325 |
width, height, 32, 0); |
326 |
if (!ximage) |
327 |
return false; |
328 |
|
329 |
if (height > INT_MAX / ximage->bytes_per_line |
330 |
|| !(ximage->data = (char *)malloc (height * ximage->bytes_per_line))) |
331 |
{ |
332 |
XDestroyImage (ximage); |
333 |
return false; |
334 |
} |
335 |
|
336 |
GC gc = XCreateGC (dpy, pm, 0, 0); |
337 |
|
338 |
ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
339 |
|
340 |
int rowstride = gdk_pixbuf_get_rowstride (pixbuf); |
341 |
int channels = gdk_pixbuf_get_n_channels (pixbuf); |
342 |
unsigned char *row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels; |
343 |
char *line = ximage->data; |
344 |
|
345 |
for (int y = 0; y < height; y++) |
346 |
{ |
347 |
for (int x = 0; x < width; x++) |
348 |
{ |
349 |
unsigned char *pixel = row + x * channels; |
350 |
uint32_t value; |
351 |
unsigned char r, g, b, a; |
352 |
|
353 |
if (channels == 4) |
354 |
{ |
355 |
a = pixel[3]; |
356 |
r = pixel[0] * a / 0xff; |
357 |
g = pixel[1] * a / 0xff; |
358 |
b = pixel[2] * a / 0xff; |
359 |
} |
360 |
else |
361 |
{ |
362 |
a = 0xff; |
363 |
r = pixel[0]; |
364 |
g = pixel[1]; |
365 |
b = pixel[2]; |
366 |
} |
367 |
|
368 |
value = ((r >> (8 - width_r)) << sh_r) |
369 |
| ((g >> (8 - width_g)) << sh_g) |
370 |
| ((b >> (8 - width_b)) << sh_b) |
371 |
| ((a >> (8 - width_a)) << sh_a); |
372 |
|
373 |
if (ximage->bits_per_pixel == 32) |
374 |
((uint32_t *)line)[x] = value; |
375 |
else |
376 |
XPutPixel (ximage, x, y, value); |
377 |
} |
378 |
|
379 |
row += rowstride; |
380 |
line += ximage->bytes_per_line; |
381 |
} |
382 |
|
383 |
XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height); |
384 |
XDestroyImage (ximage); |
385 |
XFreeGC (dpy, gc); |
386 |
|
387 |
return true; |
388 |
} |
389 |
|
390 |
rxvt_img * |
391 |
rxvt_img::clone () |
392 |
{ |
393 |
return new rxvt_img (*this); |
394 |
} |
395 |
|
396 |
rxvt_img * |
397 |
rxvt_img::reify () |
398 |
{ |
399 |
if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
400 |
return clone (); |
401 |
|
402 |
Display *dpy = s->display->dpy; |
403 |
|
404 |
bool alpha = !format->direct.alphaMask |
405 |
&& (x || y) |
406 |
&& repeat == RepeatNone; |
407 |
|
408 |
rxvt_img *img = new rxvt_img (s, alpha ? XRenderFindStandardFormat (dpy, PictStandardARGB32) : format, 0, 0, w, h, repeat); |
409 |
img->alloc (); |
410 |
|
411 |
Picture src = src_picture (); |
412 |
Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
413 |
|
414 |
if (alpha) |
415 |
{ |
416 |
XRenderColor rc = { 0, 0, 0, 0 }; |
417 |
XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
418 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h); |
419 |
} |
420 |
else |
421 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h); |
422 |
|
423 |
XRenderFreePicture (dpy, src); |
424 |
XRenderFreePicture (dpy, dst); |
425 |
|
426 |
return img; |
427 |
} |
428 |
|
429 |
rxvt_img * |
430 |
rxvt_img::sub_rect (int x, int y, int width, int height) |
431 |
{ |
432 |
rxvt_img *img = clone (); |
433 |
|
434 |
img->x += x; |
435 |
img->y += y; |
436 |
|
437 |
if (w != width || h != height) |
438 |
{ |
439 |
img->w = width; |
440 |
img->h = height; |
441 |
|
442 |
rxvt_img *img2 = img->reify (); |
443 |
delete img; |
444 |
img = img2; |
445 |
} |
446 |
|
447 |
return img; |
448 |
} |
449 |
|
450 |
rxvt_img * |
451 |
rxvt_img::transform (int new_width, int new_height, double matrix[9]) |
452 |
{ |
453 |
rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat); |
454 |
img->alloc (); |
455 |
|
456 |
Display *dpy = s->display->dpy; |
457 |
Picture src = src_picture (); |
458 |
Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
459 |
|
460 |
XTransform xfrm; |
461 |
|
462 |
for (int i = 0; i < 3; ++i) |
463 |
for (int j = 0; j < 3; ++j) |
464 |
xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); |
465 |
|
466 |
xfrm.matrix [0][2] += XDoubleToFixed (x);//TODO |
467 |
xfrm.matrix [0][3] += XDoubleToFixed (y); |
468 |
|
469 |
XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
470 |
XRenderSetPictureTransform (dpy, src, &xfrm); |
471 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); |
472 |
|
473 |
XRenderFreePicture (dpy, src); |
474 |
XRenderFreePicture (dpy, dst); |
475 |
|
476 |
return img; |
477 |
} |
478 |
|
479 |
rxvt_img * |
480 |
rxvt_img::scale (int new_width, int new_height) |
481 |
{ |
482 |
if (w == new_width && h == new_height) |
483 |
return clone (); |
484 |
|
485 |
double matrix[9] = { |
486 |
w / (double)new_width, 0, 0, |
487 |
0, h / (double)new_height, 0, |
488 |
0, 0, 1 |
489 |
}; |
490 |
|
491 |
int old_repeat_mode = repeat; |
492 |
repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems |
493 |
|
494 |
rxvt_img *img = transform (new_width, new_height, matrix); |
495 |
|
496 |
repeat = old_repeat_mode; |
497 |
img->repeat = repeat; |
498 |
|
499 |
return img; |
500 |
} |
501 |
|
502 |
rxvt_img * |
503 |
rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi) |
504 |
{ |
505 |
double s = sin (phi); |
506 |
double c = cos (phi); |
507 |
|
508 |
double matrix[9] = { |
509 |
c, -s, -c * x + s * y + x, |
510 |
s, c, -s * x - c * y + y, |
511 |
0, 0, 1 |
512 |
}; |
513 |
|
514 |
return transform (new_width, new_height, matrix); |
515 |
} |
516 |
|
517 |
rxvt_img * |
518 |
rxvt_img::convert_to (XRenderPictFormat *new_format, const rxvt_color &bg) |
519 |
{ |
520 |
if (new_format == format) |
521 |
return clone (); |
522 |
|
523 |
rxvt_img *img = new rxvt_img (s, new_format, 0, 0, w, h, repeat); |
524 |
img->alloc (); |
525 |
|
526 |
printf ("convert %d to %d\n", format->direct.alphaMask, new_format->direct.alphaMask);//D |
527 |
|
528 |
Display *dpy = s->display->dpy; |
529 |
Picture src = src_picture (); |
530 |
Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
531 |
int op = PictOpSrc; |
532 |
|
533 |
if (format->direct.alphaMask && !new_format->direct.alphaMask) |
534 |
{ |
535 |
// does it have to be that complicated |
536 |
rgba c; |
537 |
bg.get (c); |
538 |
|
539 |
XRenderColor rc = { c.r, c.g, c.b, 0xffff }; |
540 |
XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
541 |
|
542 |
op = PictOpOver; |
543 |
} |
544 |
|
545 |
XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
546 |
|
547 |
XRenderFreePicture (dpy, src); |
548 |
XRenderFreePicture (dpy, dst); |
549 |
|
550 |
return img; |
551 |
} |
552 |
|
553 |
rxvt_img * |
554 |
rxvt_img::blend (rxvt_img *img, double factor) |
555 |
{ |
556 |
rxvt_img *img2 = clone (); |
557 |
Display *dpy = s->display->dpy; |
558 |
Picture src = img->src_picture (); |
559 |
Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
560 |
Picture mask = create_xrender_mask (dpy, img->pm, False); |
561 |
|
562 |
XRenderColor mask_c; |
563 |
|
564 |
mask_c.alpha = float_to_component (factor); |
565 |
mask_c.red = |
566 |
mask_c.green = |
567 |
mask_c.blue = 0; |
568 |
XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
569 |
|
570 |
XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); |
571 |
|
572 |
XRenderFreePicture (dpy, src); |
573 |
XRenderFreePicture (dpy, dst); |
574 |
XRenderFreePicture (dpy, mask); |
575 |
|
576 |
return img2; |
577 |
} |
578 |
|
579 |
#endif |
580 |
|