… | |
… | |
13 | rxvt_img::rxvt_img (const rxvt_img &img) |
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) |
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 | { |
15 | { |
16 | ++ref->cnt; |
16 | ++ref->cnt; |
17 | } |
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 | |
18 | |
26 | rxvt_img * |
19 | rxvt_img * |
27 | rxvt_img::new_from_root (rxvt_screen *s) |
20 | rxvt_img::new_from_root (rxvt_screen *s) |
28 | { |
21 | { |
29 | Display *dpy = s->display->dpy; |
22 | Display *dpy = s->display->dpy; |
… | |
… | |
56 | img->ref->ours = false; |
49 | img->ref->ours = false; |
57 | |
50 | |
58 | return img; |
51 | return img; |
59 | } |
52 | } |
60 | |
53 | |
|
|
54 | # if HAVE_PIXBUF |
|
|
55 | |
61 | rxvt_img * |
56 | rxvt_img * |
62 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
57 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
63 | { |
58 | { |
64 | Display *dpy = s->display->dpy; |
59 | Display *dpy = s->display->dpy; |
65 | |
60 | |
… | |
… | |
69 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
64 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
70 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n"); |
65 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n"); |
71 | |
66 | |
72 | // since we require rgb24/argb32 formats from xrender we assume |
67 | // since we require rgb24/argb32 formats from xrender we assume |
73 | // that both 24 and 32 bpp MUST be supported by any screen that supports xrender |
68 | // that both 24 and 32 bpp MUST be supported by any screen that supports xrender |
74 | int depth = gdk_pixbuf_get_has_alpha (pb) ? 32 : 24; |
|
|
75 | |
69 | |
76 | int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
70 | int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
77 | |
71 | |
78 | XImage xi; |
72 | XImage xi; |
79 | |
73 | |
… | |
… | |
83 | xi.format = ZPixmap; |
77 | xi.format = ZPixmap; |
84 | xi.byte_order = ImageByteOrder (dpy); |
78 | xi.byte_order = ImageByteOrder (dpy); |
85 | xi.bitmap_unit = 0; //XY only, unused |
79 | xi.bitmap_unit = 0; //XY only, unused |
86 | xi.bitmap_bit_order = 0; //XY only, unused |
80 | xi.bitmap_bit_order = 0; //XY only, unused |
87 | xi.bitmap_pad = BitmapPad (dpy); |
81 | xi.bitmap_pad = BitmapPad (dpy); |
88 | xi.depth = depth; |
82 | xi.depth = 32; |
89 | xi.bytes_per_line = 0; |
83 | xi.bytes_per_line = 0; |
90 | xi.bits_per_pixel = 32; //Z only |
84 | xi.bits_per_pixel = 32; //Z only |
91 | xi.red_mask = 0x00000000; //Z only, unused |
85 | xi.red_mask = 0x00000000; //Z only, unused |
92 | xi.green_mask = 0x00000000; //Z only, unused |
86 | xi.green_mask = 0x00000000; //Z only, unused |
93 | xi.blue_mask = 0x00000000; //Z only, unused |
87 | xi.blue_mask = 0x00000000; //Z only, unused |
… | |
… | |
102 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); |
96 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); |
103 | |
97 | |
104 | xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); |
98 | xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); |
105 | |
99 | |
106 | int rowstride = gdk_pixbuf_get_rowstride (pb); |
100 | int rowstride = gdk_pixbuf_get_rowstride (pb); |
107 | |
101 | bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb); |
108 | assert (3 + (depth == 32) == gdk_pixbuf_get_n_channels (pb)); |
|
|
109 | unsigned char *row = gdk_pixbuf_get_pixels (pb); |
102 | unsigned char *row = gdk_pixbuf_get_pixels (pb); |
|
|
103 | |
110 | char *line = xi.data; |
104 | char *line = xi.data; |
111 | |
105 | |
112 | for (int y = 0; y < height; y++) |
106 | for (int y = 0; y < height; y++) |
113 | { |
107 | { |
114 | unsigned char *src = row; |
108 | unsigned char *src = row; |
115 | uint32_t *dst = (uint32_t *)line; |
109 | uint32_t *dst = (uint32_t *)line; |
116 | |
110 | |
117 | if (depth == 24) |
111 | if (!pb_has_alpha) |
118 | for (int x = 0; x < width; x++) |
112 | for (int x = 0; x < width; x++) |
119 | { |
113 | { |
120 | uint8_t r = *src++; |
114 | uint8_t r = *src++; |
121 | uint8_t g = *src++; |
115 | uint8_t g = *src++; |
122 | uint8_t b = *src++; |
116 | uint8_t b = *src++; |
123 | |
117 | |
124 | uint32_t v = (r << 16) | (g << 8) | b; |
118 | uint32_t v = (255 << 24) | (r << 16) | (g << 8) | b; |
125 | |
119 | |
126 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
120 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
127 | v = ecb_bswap32 (v); |
121 | v = ecb_bswap32 (v); |
128 | |
122 | |
129 | *dst++ = v; |
123 | *dst++ = v; |
… | |
… | |
146 | |
140 | |
147 | row += rowstride; |
141 | row += rowstride; |
148 | line += xi.bytes_per_line; |
142 | line += xi.bytes_per_line; |
149 | } |
143 | } |
150 | |
144 | |
151 | rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, depth == 24 ? PictStandardRGB24 : PictStandardARGB32), 0, 0, width, height); |
145 | rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height); |
152 | img->alloc (); |
146 | img->alloc (); |
153 | |
147 | |
154 | GC gc = XCreateGC (dpy, img->pm, 0, 0); |
148 | GC gc = XCreateGC (dpy, img->pm, 0, 0); |
155 | XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); |
149 | XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); |
156 | XFreeGC (dpy, gc); |
150 | XFreeGC (dpy, gc); |
… | |
… | |
174 | g_object_unref (pb); |
168 | g_object_unref (pb); |
175 | |
169 | |
176 | return img; |
170 | return img; |
177 | } |
171 | } |
178 | |
172 | |
|
|
173 | # endif |
|
|
174 | |
179 | void |
175 | void |
180 | rxvt_img::destroy () |
176 | rxvt_img::destroy () |
181 | { |
177 | { |
182 | if (--ref->cnt) |
178 | if (--ref->cnt) |
183 | return; |
179 | return; |
… | |
… | |
216 | rxvt_img::unshare () |
212 | rxvt_img::unshare () |
217 | { |
213 | { |
218 | if (ref->cnt == 1 && ref->ours) |
214 | if (ref->cnt == 1 && ref->ours) |
219 | return; |
215 | return; |
220 | |
216 | |
221 | //TODO: maybe should reify instead |
|
|
222 | Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); |
217 | Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); |
223 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
218 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
224 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
219 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
225 | XFreeGC (s->display->dpy, gc); |
220 | XFreeGC (s->display->dpy, gc); |
226 | |
221 | |
… | |
… | |
231 | } |
226 | } |
232 | |
227 | |
233 | void |
228 | void |
234 | rxvt_img::fill (const rxvt_color &c) |
229 | rxvt_img::fill (const rxvt_color &c) |
235 | { |
230 | { |
236 | XGCValues gcv; |
231 | rgba cc; |
237 | gcv.foreground = c; |
232 | c.get (cc); |
238 | GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
233 | XRenderColor rc = { cc.r, cc.g, cc.b, cc.a }; |
239 | XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
234 | |
240 | XFreeGC (s->display->dpy, gc); |
235 | Display *dpy = s->display->dpy; |
|
|
236 | Picture src = src_picture (); |
|
|
237 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h); |
|
|
238 | XRenderFreePicture (dpy, src); |
241 | } |
239 | } |
242 | |
240 | |
243 | static void |
241 | static void |
244 | get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
242 | get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
245 | { |
243 | { |
… | |
… | |
272 | double *kernel = (double *)malloc (size * sizeof (double)); |
270 | double *kernel = (double *)malloc (size * sizeof (double)); |
273 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
271 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
274 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
272 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
275 | img->alloc (); |
273 | img->alloc (); |
276 | |
274 | |
277 | Picture src = src_picture (); |
|
|
278 | |
|
|
279 | XRenderPictureAttributes pa; |
275 | XRenderPictureAttributes pa; |
280 | pa.repeat = RepeatPad; |
276 | pa.repeat = RepeatPad; |
281 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, CPRepeat, &pa); |
277 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
|
|
278 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
282 | |
279 | |
283 | Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); |
280 | Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); |
284 | Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); |
281 | Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); |
285 | XFreePixmap (dpy, tmp_pm); |
282 | XFreePixmap (dpy, tmp_pm); |
286 | |
283 | |
… | |
… | |
302 | |
299 | |
303 | size = rv * 2 + 1; |
300 | size = rv * 2 + 1; |
304 | get_gaussian_kernel (rv, size, kernel, params); |
301 | get_gaussian_kernel (rv, size, kernel, params); |
305 | ::swap (params[0], params[1]); |
302 | ::swap (params[0], params[1]); |
306 | |
303 | |
307 | XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
304 | XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2); |
308 | XRenderComposite (dpy, |
305 | XRenderComposite (dpy, |
309 | PictOpSrc, |
306 | PictOpSrc, |
310 | tmp, |
307 | tmp, |
311 | None, |
308 | None, |
312 | dst, |
309 | dst, |
… | |
… | |
316 | w, h); |
313 | w, h); |
317 | } |
314 | } |
318 | |
315 | |
319 | free (kernel); |
316 | free (kernel); |
320 | free (params); |
317 | free (params); |
|
|
318 | |
321 | XRenderFreePicture (dpy, src); |
319 | XRenderFreePicture (dpy, src); |
322 | XRenderFreePicture (dpy, dst); |
320 | XRenderFreePicture (dpy, dst); |
323 | XRenderFreePicture (dpy, tmp); |
321 | XRenderFreePicture (dpy, tmp); |
324 | |
322 | |
325 | return img; |
323 | return img; |
326 | } |
324 | } |
327 | |
325 | |
328 | static Picture |
326 | static Picture |
329 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb) |
327 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha) |
330 | { |
328 | { |
331 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
329 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
332 | |
330 | |
333 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
331 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
334 | XRenderPictureAttributes pa; |
332 | XRenderPictureAttributes pa; |
335 | pa.repeat = True; |
333 | pa.repeat = RepeatNormal; |
|
|
334 | pa.component_alpha = component_alpha; |
336 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); |
335 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
337 | |
336 | |
338 | XFreePixmap (dpy, pixmap); |
337 | XFreePixmap (dpy, pixmap); |
339 | |
338 | |
340 | return mask; |
339 | return mask; |
341 | } |
340 | } |
342 | |
341 | |
|
|
342 | static void |
|
|
343 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
|
|
344 | { |
|
|
345 | int32_t x = clamp (c, cl0, cl1); |
|
|
346 | c -= x; |
|
|
347 | xc = x; |
|
|
348 | } |
|
|
349 | |
|
|
350 | static bool |
|
|
351 | 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) |
|
|
352 | { |
|
|
353 | extract (cl0, cl1, r, xr); |
|
|
354 | extract (cl0, cl1, g, xg); |
|
|
355 | extract (cl0, cl1, b, xb); |
|
|
356 | extract (cl0, cl1, a, xa); |
|
|
357 | |
|
|
358 | return xr | xg | xb | xa; |
|
|
359 | } |
|
|
360 | |
343 | void |
361 | void |
344 | rxvt_img::brightness (unsigned short r, unsigned short g, unsigned short b, unsigned short a) |
362 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
345 | { |
363 | { |
|
|
364 | unshare (); |
|
|
365 | |
346 | Display *dpy = s->display->dpy; |
366 | Display *dpy = s->display->dpy; |
347 | Picture src = create_xrender_mask (dpy, pm, True); |
|
|
348 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
367 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
349 | |
368 | |
|
|
369 | // loop should not be needed for brightness, as only -1..1 makes sense |
|
|
370 | //while (r | g | b | a) |
|
|
371 | { |
|
|
372 | unsigned short xr, xg, xb, xa; |
350 | XRenderColor mask_c; |
373 | XRenderColor mask_c; |
351 | mask_c.red = r; |
374 | |
352 | mask_c.green = g; |
375 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
353 | mask_c.blue = b; |
376 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
354 | mask_c.alpha = a; |
377 | |
|
|
378 | if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
379 | { |
|
|
380 | XRenderColor mask_w = { 65535, 65535, 65535, 65535 }; |
|
|
381 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
|
|
382 | mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing |
|
|
383 | mask_c.green = -mask_c.green; |
|
|
384 | mask_c.blue = -mask_c.blue; |
|
|
385 | mask_c.alpha = -mask_c.alpha; |
|
|
386 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
|
|
387 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
|
|
388 | } |
|
|
389 | } |
|
|
390 | |
|
|
391 | XRenderFreePicture (dpy, dst); |
|
|
392 | } |
|
|
393 | |
|
|
394 | void |
|
|
395 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
|
|
396 | { |
|
|
397 | if (r < 0 || g < 0 || b < 0 || a < 0) |
|
|
398 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
|
|
399 | |
|
|
400 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
|
|
401 | img->alloc (); |
|
|
402 | |
|
|
403 | { |
|
|
404 | rxvt_color empty; |
|
|
405 | empty.set (s, rgba (0, 0, 0, 0)); |
|
|
406 | img->fill (empty); |
|
|
407 | } |
|
|
408 | |
|
|
409 | // premultiply (yeah, these are not exact, sue me or fix it) |
|
|
410 | r = (r * (a >> 8)) >> 8; |
|
|
411 | g = (g * (a >> 8)) >> 8; |
|
|
412 | b = (b * (a >> 8)) >> 8; |
|
|
413 | |
|
|
414 | Display *dpy = s->display->dpy; |
|
|
415 | |
|
|
416 | Picture src = src_picture (); |
|
|
417 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
|
|
418 | Picture mul = create_xrender_mask (dpy, pm, True, True); |
|
|
419 | |
|
|
420 | //TODO: this operator does not yet implement some useful contrast |
|
|
421 | while (r | g | b | a) |
|
|
422 | { |
|
|
423 | unsigned short xr, xg, xb, xa; |
|
|
424 | XRenderColor mask_c; |
|
|
425 | |
|
|
426 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
427 | { |
355 | XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
428 | XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1); |
356 | |
|
|
357 | XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
429 | XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
430 | } |
|
|
431 | } |
358 | |
432 | |
|
|
433 | XRenderFreePicture (dpy, mul); |
|
|
434 | XRenderFreePicture (dpy, dst); |
359 | XRenderFreePicture (dpy, src); |
435 | XRenderFreePicture (dpy, src); |
360 | XRenderFreePicture (dpy, dst); |
|
|
361 | } |
|
|
362 | |
436 | |
363 | void |
437 | ::swap (img->ref, ref); |
364 | rxvt_img::contrast (unsigned short r, unsigned short g, unsigned short b, unsigned short a) |
438 | ::swap (img->pm , pm ); |
365 | { |
|
|
366 | if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) |
|
|
367 | return; |
|
|
368 | |
439 | |
369 | Display *dpy = s->display->dpy; |
440 | delete img; |
370 | Picture src = create_xrender_mask (dpy, pm, True); |
|
|
371 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
|
|
372 | |
|
|
373 | XRenderColor mask_c; |
|
|
374 | mask_c.red = r; |
|
|
375 | mask_c.green = g; |
|
|
376 | mask_c.blue = b; |
|
|
377 | mask_c.alpha = a; |
|
|
378 | XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
|
|
379 | |
|
|
380 | XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
381 | |
|
|
382 | XRenderFreePicture (dpy, src); |
|
|
383 | XRenderFreePicture (dpy, dst); |
|
|
384 | } |
441 | } |
385 | |
442 | |
386 | rxvt_img * |
443 | rxvt_img * |
387 | rxvt_img::clone () |
444 | rxvt_img::clone () |
388 | { |
445 | { |
… | |
… | |
415 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
472 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
416 | return clone (); |
473 | return clone (); |
417 | |
474 | |
418 | Display *dpy = s->display->dpy; |
475 | Display *dpy = s->display->dpy; |
419 | |
476 | |
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477 | // add an alpha channel if... |
420 | bool alpha = !format->direct.alphaMask |
478 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
421 | && (x || y) |
479 | && (x || y) // we need one because of non-zero offset |
422 | && repeat == RepeatNone; |
480 | && repeat == RepeatNone; // and we have no good pixels to fill with |
423 | |
481 | |
424 | rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
482 | rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
425 | img->alloc (); |
483 | img->alloc (); |
426 | |
484 | |
427 | Picture src = src_picture (); |
485 | Picture src = src_picture (); |
… | |
… | |
461 | } |
519 | } |
462 | |
520 | |
463 | return img; |
521 | return img; |
464 | } |
522 | } |
465 | |
523 | |
466 | rxvt_img * |
524 | static void |
467 | rxvt_img::transform (int new_width, int new_height, double matrix[9]) |
525 | mat_invert (double mat[3][3], double (&inv)[3][3]) |
468 | { |
526 | { |
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|
527 | double s0 = mat [2][2] * mat [1][1] - mat [2][1] * mat [1][2]; |
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528 | double s1 = mat [2][1] * mat [0][2] - mat [2][2] * mat [0][1]; |
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529 | double s2 = mat [1][2] * mat [0][1] - mat [1][1] * mat [0][2]; |
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530 | |
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531 | double invdet = 1. / (mat [0][0] * s0 + mat [1][0] * s1 + mat [2][0] * s2); |
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532 | |
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533 | inv [0][0] = invdet * s0; |
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534 | inv [0][1] = invdet * s1; |
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535 | inv [0][2] = invdet * s2; |
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536 | |
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537 | inv [1][0] = invdet * (mat [2][0] * mat [1][2] - mat [2][2] * mat [1][0]); |
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538 | inv [1][1] = invdet * (mat [2][2] * mat [0][0] - mat [2][0] * mat [0][2]); |
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539 | inv [1][2] = invdet * (mat [1][0] * mat [0][2] - mat [1][2] * mat [0][0]); |
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540 | |
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541 | inv [2][0] = invdet * (mat [2][1] * mat [1][0] - mat [2][0] * mat [1][1]); |
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542 | inv [2][1] = invdet * (mat [2][0] * mat [0][1] - mat [2][1] * mat [0][0]); |
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543 | inv [2][2] = invdet * (mat [1][1] * mat [0][0] - mat [1][0] * mat [0][1]); |
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544 | } |
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545 | |
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546 | static double |
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547 | mat_apply (double mat[3][3], int i, double x, double y) |
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548 | { |
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549 | double v = mat [i][0] * x + mat [i][1] * y + mat [i][2]; |
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550 | double w = mat [2][0] * x + mat [2][1] * y + mat [2][2]; |
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551 | |
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552 | return v * (1. / w); |
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553 | } |
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554 | |
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555 | rxvt_img * |
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556 | rxvt_img::transform (double matrix[3][3]) |
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557 | { |
|
|
558 | // find new offset |
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559 | int ox = mat_apply (matrix, 0, x, y); |
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560 | int oy = mat_apply (matrix, 1, x, y); |
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561 | |
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562 | // calculate new pixel bounding box coordinates |
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563 | double d [2], rmin[2], rmax[2]; |
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564 | |
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565 | for (int i = 0; i < 2; ++i) |
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566 | { |
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567 | double v; |
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568 | v = mat_apply (matrix, i, 0, 0); rmin [i] = rmax [i] = v; d [i] = v; |
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569 | v = mat_apply (matrix, i, w, 0); min_it (rmin [i], v); max_it (rmax [i], v); |
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570 | v = mat_apply (matrix, i, 0, h); min_it (rmin [i], v); max_it (rmax [i], v); |
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571 | v = mat_apply (matrix, i, w, h); min_it (rmin [i], v); max_it (rmax [i], v); |
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572 | } |
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573 | |
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574 | int dx = floor (rmin [0]); |
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575 | int dy = floor (rmin [1]); |
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576 | |
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577 | int new_width = ceil (rmax [0] - dx); |
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578 | int new_height = ceil (rmax [1] - dy); |
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579 | |
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580 | double inv[3][3]; |
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581 | mat_invert (matrix, inv); |
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582 | |
469 | rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat); |
583 | rxvt_img *img = new rxvt_img (s, format, ox - dx - d [0], oy - dy - d [1], new_width, new_height, repeat); |
470 | img->alloc (); |
584 | img->alloc (); |
471 | |
585 | |
472 | Display *dpy = s->display->dpy; |
586 | Display *dpy = s->display->dpy; |
473 | Picture src = src_picture (); |
587 | Picture src = src_picture (); |
474 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
588 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
475 | |
589 | |
476 | XTransform xfrm; |
590 | XTransform xfrm; |
477 | |
591 | |
478 | for (int i = 0; i < 3; ++i) |
592 | for (int i = 0; i < 3; ++i) |
479 | for (int j = 0; j < 3; ++j) |
593 | for (int j = 0; j < 3; ++j) |
480 | xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); |
594 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
481 | |
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482 | #if 0 |
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483 | xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO |
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484 | xfrm.matrix [1][2] -= XDoubleToFixed (y); |
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|
485 | #endif |
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|
486 | |
595 | |
487 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
596 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
488 | XRenderSetPictureTransform (dpy, src, &xfrm); |
597 | XRenderSetPictureTransform (dpy, src, &xfrm); |
489 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); |
598 | XRenderComposite (dpy, PictOpSrc, src, None, dst, dx, dy, 0, 0, 0, 0, new_width, new_height); |
490 | |
599 | |
491 | XRenderFreePicture (dpy, src); |
600 | XRenderFreePicture (dpy, src); |
492 | XRenderFreePicture (dpy, dst); |
601 | XRenderFreePicture (dpy, dst); |
493 | |
602 | |
494 | return img; |
603 | return img; |
… | |
… | |
498 | rxvt_img::scale (int new_width, int new_height) |
607 | rxvt_img::scale (int new_width, int new_height) |
499 | { |
608 | { |
500 | if (w == new_width && h == new_height) |
609 | if (w == new_width && h == new_height) |
501 | return clone (); |
610 | return clone (); |
502 | |
611 | |
503 | double matrix[9] = { |
612 | double matrix[3][3] = { |
504 | w / (double)new_width, 0, 0, |
613 | { new_width / (double)w, 0, 0 }, |
505 | 0, h / (double)new_height, 0, |
614 | { 0, new_height / (double)h, 0 }, |
506 | 0, 0, 1 |
615 | { 0, 0, 1 } |
507 | }; |
616 | }; |
508 | |
617 | |
509 | int old_repeat_mode = repeat; |
618 | int old_repeat_mode = repeat; |
510 | repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems |
619 | repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
511 | |
620 | |
512 | rxvt_img *img = transform (new_width, new_height, matrix); |
621 | rxvt_img *img = transform (matrix); |
513 | |
622 | |
514 | repeat = old_repeat_mode; |
623 | repeat = old_repeat_mode; |
515 | img->repeat = repeat; |
624 | img->repeat = repeat; |
516 | |
625 | |
517 | return img; |
626 | return img; |
518 | } |
627 | } |
519 | |
628 | |
520 | rxvt_img * |
629 | rxvt_img * |
521 | rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi) |
630 | rxvt_img::rotate (int cx, int cy, double phi) |
522 | { |
631 | { |
523 | double s = sin (phi); |
632 | double s = sin (phi); |
524 | double c = cos (phi); |
633 | double c = cos (phi); |
525 | |
634 | |
526 | double matrix[9] = { |
635 | double matrix[3][3] = { |
527 | c, -s, -c * x + s * y + x, |
636 | { c, -s, cx - c * cx + s * cy }, |
528 | s, c, -s * x - c * y + y, |
637 | { s, c, cy - s * cx - c * cy }, |
529 | 0, 0, 1 |
638 | { 0, 0, 1 } |
|
|
639 | //{ c, -s, 0 }, |
|
|
640 | //{ s, c, 0 }, |
|
|
641 | //{ 0, 0, 1 } |
530 | }; |
642 | }; |
531 | |
643 | |
532 | return transform (new_width, new_height, matrix); |
644 | //move (-cx, -cy); |
|
|
645 | rxvt_img *img = transform (matrix); |
|
|
646 | //move ( cx, cy); |
|
|
647 | //img->move (cx, cy); |
|
|
648 | |
|
|
649 | return img; |
533 | } |
650 | } |
534 | |
651 | |
535 | rxvt_img * |
652 | rxvt_img * |
536 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg) |
653 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg) |
537 | { |
654 | { |
… | |
… | |
571 | { |
688 | { |
572 | rxvt_img *img2 = clone (); |
689 | rxvt_img *img2 = clone (); |
573 | Display *dpy = s->display->dpy; |
690 | Display *dpy = s->display->dpy; |
574 | Picture src = img->src_picture (); |
691 | Picture src = img->src_picture (); |
575 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
692 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
576 | Picture mask = create_xrender_mask (dpy, img->pm, False); |
693 | Picture mask = create_xrender_mask (dpy, img->pm, False, False); |
577 | |
694 | |
578 | XRenderColor mask_c; |
695 | XRenderColor mask_c; |
579 | |
696 | |
580 | mask_c.alpha = float_to_component (factor); |
697 | mask_c.alpha = float_to_component (factor); |
581 | mask_c.red = |
698 | mask_c.red = |