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/cvs/rxvt-unicode/src/rxvtimg.C
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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.48 by root, Thu Jun 7 19:24:02 2012 UTC vs.
Revision 1.64 by root, Fri Jun 8 21:33:32 2012 UTC

… …
13rxvt_img::rxvt_img (const rxvt_img &img) 13rxvt_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
20rxvt_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
26rxvt_img * 19rxvt_img *
27rxvt_img::new_from_root (rxvt_screen *s) 20rxvt_img::new_from_root (rxvt_screen *s)
28{ 21{
29 Display *dpy = s->display->dpy; 22 Display *dpy = s->display->dpy;
… …
71 64
72 // since we require rgb24/argb32 formats from xrender we assume 65 // 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 66 // 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; 67 int depth = gdk_pixbuf_get_has_alpha (pb) ? 32 : 24;
75 68
69 int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
70
76 XImage xi; 71 XImage xi;
77 72
78 xi.width = width; 73 xi.width = width;
79 xi.height = height; 74 xi.height = height;
80 xi.xoffset = 0; 75 xi.xoffset = 0;
81 xi.format = ZPixmap; 76 xi.format = ZPixmap;
82 xi.byte_order = MSBFirst; // maybe go for host byte order, because servers are usually local? 77 xi.byte_order = ImageByteOrder (dpy);
83 xi.bitmap_unit = 32; 78 xi.bitmap_unit = 0; //XY only, unused
84 xi.bitmap_bit_order = MSBFirst; 79 xi.bitmap_bit_order = 0; //XY only, unused
85 xi.bitmap_pad = BitmapPad (dpy); 80 xi.bitmap_pad = BitmapPad (dpy);
86 xi.depth = depth; 81 xi.depth = depth;
87 xi.bytes_per_line = 0; 82 xi.bytes_per_line = 0;
88 xi.bits_per_pixel = 32; 83 xi.bits_per_pixel = 32; //Z only
89 xi.red_mask = 0x00ff0000; 84 xi.red_mask = 0x00000000; //Z only, unused
90 xi.green_mask = 0x0000ff00; 85 xi.green_mask = 0x00000000; //Z only, unused
91 xi.blue_mask = 0x000000ff; 86 xi.blue_mask = 0x00000000; //Z only, unused
87 xi.obdata = 0; // probably unused
88
89 bool byte_order_mismatch = byte_order != xi.byte_order;
92 90
93 if (!XInitImage (&xi)) 91 if (!XInitImage (&xi))
94 rxvt_fatal ("unable to initialise ximage, please report.\n"); 92 rxvt_fatal ("unable to initialise ximage, please report.\n");
95 93
96 if (height > INT_MAX / xi.bytes_per_line) 94 if (height > INT_MAX / xi.bytes_per_line)
… …
104 unsigned char *row = gdk_pixbuf_get_pixels (pb); 102 unsigned char *row = gdk_pixbuf_get_pixels (pb);
105 char *line = xi.data; 103 char *line = xi.data;
106 104
107 for (int y = 0; y < height; y++) 105 for (int y = 0; y < height; y++)
108 { 106 {
109 unsigned char r, g, b, a;
110 unsigned char *data = row; 107 unsigned char *src = row;
108 uint32_t *dst = (uint32_t *)line;
111 109
112 if (depth == 24) 110 if (depth == 24)
113 for (int x = 0; x < width; x++) 111 for (int x = 0; x < width; x++)
114 { 112 {
115 asm volatile("nop"); 113 uint8_t r = *src++;
116 r = *data++; 114 uint8_t g = *src++;
117 g = *data++; 115 uint8_t b = *src++;
118 b = *data++; 116
117 uint32_t v = (r << 16) | (g << 8) | b;
118
119 if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)
120 v = ecb_bswap32 (v);
121
119 *line++ = 0; 122 *dst++ = v;
120 *line++ = r;
121 *line++ = g;
122 *line++ = b;
123 asm volatile("nop");
124 } 123 }
125 else 124 else
126 for (int x = 0; x < width; x++) 125 for (int x = 0; x < width; x++)
127 { 126 {
128 uint32_t v = *(uint32_t *)data; data += 4; 127 uint32_t v = *(uint32_t *)src; src += 4;
129 v = ecb_big_endian () ? ecb_rotr32 (v, 8) : ecb_rotl32 (v, 8); 128
130 *(uint32_t *)line = x; line += 4; 129 if (ecb_big_endian ())
130 v = ecb_bswap32 (v);
131
132 v = ecb_rotl32 (v, 8); // abgr to bgra
133
134 if (!byte_order_mismatch)
135 v = ecb_bswap32 (v);
136
137 *dst++ = v;
131 } 138 }
132 139
133 row += rowstride; 140 row += rowstride;
141 line += xi.bytes_per_line;
134 } 142 }
135 143
136 rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, depth == 24 ? PictStandardRGB24 : PictStandardARGB32), 0, 0, width, height); 144 rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, depth == 24 ? PictStandardRGB24 : PictStandardARGB32), 0, 0, width, height);
137 img->alloc (); 145 img->alloc ();
138 146
… …
257 double *kernel = (double *)malloc (size * sizeof (double)); 265 double *kernel = (double *)malloc (size * sizeof (double));
258 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); 266 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
259 rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); 267 rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
260 img->alloc (); 268 img->alloc ();
261 269
262 Picture src = src_picture ();
263
264 XRenderPictureAttributes pa; 270 XRenderPictureAttributes pa;
265 pa.repeat = RepeatPad; 271 pa.repeat = RepeatPad;
266 Picture dst = XRenderCreatePicture (dpy, img->pm, format, CPRepeat, &pa); 272 Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
273 Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
267 274
268 Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); 275 Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
269 Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); 276 Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
270 XFreePixmap (dpy, tmp_pm); 277 XFreePixmap (dpy, tmp_pm);
271 278
… …
287 294
288 size = rv * 2 + 1; 295 size = rv * 2 + 1;
289 get_gaussian_kernel (rv, size, kernel, params); 296 get_gaussian_kernel (rv, size, kernel, params);
290 ::swap (params[0], params[1]); 297 ::swap (params[0], params[1]);
291 298
292 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); 299 XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2);
293 XRenderComposite (dpy, 300 XRenderComposite (dpy,
294 PictOpSrc, 301 PictOpSrc,
295 tmp, 302 tmp,
296 None, 303 None,
297 dst, 304 dst,
… …
324 331
325 return mask; 332 return mask;
326} 333}
327 334
328void 335void
329rxvt_img::brightness (unsigned short r, unsigned short g, unsigned short b, unsigned short a) 336rxvt_img::brightness (uint16_t r, uint16_t g, uint16_t b, uint16_t a)
330{ 337{
331 Display *dpy = s->display->dpy; 338 Display *dpy = s->display->dpy;
332 Picture src = create_xrender_mask (dpy, pm, True); 339 Picture src = create_xrender_mask (dpy, pm, True);
333 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 340 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
334 341
… …
344 XRenderFreePicture (dpy, src); 351 XRenderFreePicture (dpy, src);
345 XRenderFreePicture (dpy, dst); 352 XRenderFreePicture (dpy, dst);
346} 353}
347 354
348void 355void
349rxvt_img::contrast (unsigned short r, unsigned short g, unsigned short b, unsigned short a) 356rxvt_img::contrast (uint16_t r, uint16_t g, uint16_t b, uint16_t a)
350{ 357{
351 if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) 358 if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))
359 {
360 rxvt_warn ("rxvt_img::contrast operation not supported on this display, RENDER extension too old.\n");
352 return; 361 return;
362 }
353 363
354 Display *dpy = s->display->dpy; 364 Display *dpy = s->display->dpy;
355 Picture src = create_xrender_mask (dpy, pm, True); 365 Picture src = create_xrender_mask (dpy, pm, True);
356 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 366 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
357 367
… …
400 if (x == 0 && y == 0 && w == ref->w && h == ref->h) 410 if (x == 0 && y == 0 && w == ref->w && h == ref->h)
401 return clone (); 411 return clone ();
402 412
403 Display *dpy = s->display->dpy; 413 Display *dpy = s->display->dpy;
404 414
415 // add an alpha channel if...
405 bool alpha = !format->direct.alphaMask 416 bool alpha = !format->direct.alphaMask // pixmap has none yet
406 && (x || y) 417 && (x || y) // we need one because of non-zero offset
407 && repeat == RepeatNone; 418 && repeat == RepeatNone; // and we have no good pixels to fill with
408 419
409 rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); 420 rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
410 img->alloc (); 421 img->alloc ();
411 422
412 Picture src = src_picture (); 423 Picture src = src_picture ();

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