1 |
sf-exg |
1.6 |
#include <math.h> |
2 |
root |
1.1 |
#include "../config.h" |
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#include "rxvt.h" |
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5 |
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#if HAVE_IMG |
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root |
1.83 |
static XRenderPictFormat * |
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find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
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{ |
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if (format->direct.alphaMask) |
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return format; // already has alpha |
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// try to find a suitable alpha format, one bit alpha is enough for our purposes |
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if (format->type == PictTypeDirect) |
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for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
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if (f->direct.alphaMask |
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&& f->type == PictTypeDirect |
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&& ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
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&& ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
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&& ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
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return f; |
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// should be a very good fallback |
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return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
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} |
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root |
1.41 |
rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
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: s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
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root |
1.34 |
pm(0), ref(0) |
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root |
1.1 |
{ |
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} |
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root |
1.32 |
rxvt_img::rxvt_img (const rxvt_img &img) |
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root |
1.34 |
: 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) |
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1.32 |
{ |
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root |
1.34 |
++ref->cnt; |
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root |
1.32 |
} |
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root |
1.4 |
rxvt_img * |
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sf-exg |
1.21 |
rxvt_img::new_from_root (rxvt_screen *s) |
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{ |
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Display *dpy = s->display->dpy; |
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unsigned int root_pm_w, root_pm_h; |
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Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]); |
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if (root_pixmap == None) |
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root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]); |
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if (root_pixmap == None) |
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return 0; |
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Window wdummy; |
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int idummy; |
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unsigned int udummy; |
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if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pm_w, &root_pm_h, &udummy, &udummy)) |
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return 0; |
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rxvt_img *img = new rxvt_img ( |
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s, |
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XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)), |
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root |
1.33 |
0, |
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0, |
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sf-exg |
1.21 |
root_pm_w, |
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root |
1.32 |
root_pm_h |
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sf-exg |
1.21 |
); |
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|
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root |
1.32 |
img->pm = root_pixmap; |
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root |
1.34 |
img->ref = new pixref (root_pm_w, root_pm_h); |
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img->ref->ours = false; |
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sf-exg |
1.21 |
|
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return img; |
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} |
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74 |
sf-exg |
1.73 |
# if HAVE_PIXBUF |
75 |
root |
1.77 |
|
76 |
sf-exg |
1.21 |
rxvt_img * |
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root |
1.47 |
rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
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{ |
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root |
1.48 |
Display *dpy = s->display->dpy; |
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root |
1.47 |
int width = gdk_pixbuf_get_width (pb); |
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int height = gdk_pixbuf_get_height (pb); |
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if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
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rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n"); |
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// since we require rgb24/argb32 formats from xrender we assume |
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// that both 24 and 32 bpp MUST be supported by any screen that supports xrender |
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1.54 |
int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
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root |
1.47 |
XImage xi; |
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xi.width = width; |
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xi.height = height; |
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xi.xoffset = 0; |
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xi.format = ZPixmap; |
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root |
1.54 |
xi.byte_order = ImageByteOrder (dpy); |
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1.55 |
xi.bitmap_unit = 0; //XY only, unused |
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xi.bitmap_bit_order = 0; //XY only, unused |
101 |
root |
1.48 |
xi.bitmap_pad = BitmapPad (dpy); |
102 |
root |
1.76 |
xi.depth = 32; |
103 |
root |
1.47 |
xi.bytes_per_line = 0; |
104 |
root |
1.51 |
xi.bits_per_pixel = 32; //Z only |
105 |
root |
1.52 |
xi.red_mask = 0x00000000; //Z only, unused |
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xi.green_mask = 0x00000000; //Z only, unused |
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xi.blue_mask = 0x00000000; //Z only, unused |
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xi.obdata = 0; // probably unused |
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root |
1.47 |
|
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root |
1.54 |
bool byte_order_mismatch = byte_order != xi.byte_order; |
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root |
1.47 |
if (!XInitImage (&xi)) |
113 |
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rxvt_fatal ("unable to initialise ximage, please report.\n"); |
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if (height > INT_MAX / xi.bytes_per_line) |
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rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); |
117 |
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118 |
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xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); |
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int rowstride = gdk_pixbuf_get_rowstride (pb); |
121 |
root |
1.76 |
bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb); |
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unsigned char *row = gdk_pixbuf_get_pixels (pb); |
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root |
1.47 |
|
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char *line = xi.data; |
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126 |
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for (int y = 0; y < height; y++) |
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{ |
128 |
root |
1.50 |
unsigned char *src = row; |
129 |
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uint32_t *dst = (uint32_t *)line; |
130 |
root |
1.47 |
|
131 |
root |
1.76 |
if (!pb_has_alpha) |
132 |
root |
1.47 |
for (int x = 0; x < width; x++) |
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{ |
134 |
root |
1.50 |
uint8_t r = *src++; |
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uint8_t g = *src++; |
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uint8_t b = *src++; |
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root |
1.76 |
uint32_t v = (255 << 24) | (r << 16) | (g << 8) | b; |
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root |
1.50 |
|
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root |
1.56 |
if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
141 |
root |
1.54 |
v = ecb_bswap32 (v); |
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143 |
root |
1.51 |
*dst++ = v; |
144 |
root |
1.47 |
} |
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else |
146 |
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for (int x = 0; x < width; x++) |
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{ |
148 |
root |
1.50 |
uint32_t v = *(uint32_t *)src; src += 4; |
149 |
root |
1.51 |
|
150 |
root |
1.57 |
if (ecb_big_endian ()) |
151 |
root |
1.51 |
v = ecb_bswap32 (v); |
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|
153 |
root |
1.58 |
v = ecb_rotl32 (v, 8); // abgr to bgra |
154 |
root |
1.52 |
|
155 |
root |
1.57 |
if (!byte_order_mismatch) |
156 |
root |
1.54 |
v = ecb_bswap32 (v); |
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158 |
root |
1.51 |
*dst++ = v; |
159 |
root |
1.47 |
} |
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row += rowstride; |
162 |
root |
1.50 |
line += xi.bytes_per_line; |
163 |
root |
1.47 |
} |
164 |
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165 |
root |
1.76 |
rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height); |
166 |
root |
1.47 |
img->alloc (); |
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GC gc = XCreateGC (dpy, img->pm, 0, 0); |
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XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); |
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XFreeGC (dpy, gc); |
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free (xi.data); |
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return img; |
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} |
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rxvt_img * |
178 |
root |
1.4 |
rxvt_img::new_from_file (rxvt_screen *s, const char *filename) |
179 |
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{ |
180 |
root |
1.11 |
GError *err = 0; |
181 |
root |
1.4 |
GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
182 |
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183 |
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if (!pb) |
184 |
root |
1.11 |
rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
185 |
root |
1.4 |
|
186 |
root |
1.47 |
rxvt_img *img = new_from_pixbuf (s, pb); |
187 |
root |
1.4 |
|
188 |
sf-exg |
1.26 |
g_object_unref (pb); |
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190 |
root |
1.4 |
return img; |
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} |
192 |
root |
1.77 |
|
193 |
sf-exg |
1.73 |
# endif |
194 |
root |
1.4 |
|
195 |
root |
1.32 |
void |
196 |
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rxvt_img::destroy () |
197 |
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{ |
198 |
root |
1.34 |
if (--ref->cnt) |
199 |
root |
1.32 |
return; |
200 |
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201 |
root |
1.34 |
if (pm && ref->ours) |
202 |
root |
1.32 |
XFreePixmap (s->display->dpy, pm); |
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204 |
root |
1.34 |
delete ref; |
205 |
root |
1.32 |
} |
206 |
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207 |
root |
1.1 |
rxvt_img::~rxvt_img () |
208 |
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{ |
209 |
root |
1.32 |
destroy (); |
210 |
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} |
211 |
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212 |
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void |
213 |
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rxvt_img::alloc () |
214 |
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{ |
215 |
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pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
216 |
root |
1.34 |
ref = new pixref (w, h); |
217 |
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} |
218 |
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219 |
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Picture |
220 |
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rxvt_img::src_picture () |
221 |
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{ |
222 |
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Display *dpy = s->display->dpy; |
223 |
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224 |
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XRenderPictureAttributes pa; |
225 |
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pa.repeat = repeat; |
226 |
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Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
227 |
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228 |
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return pic; |
229 |
root |
1.1 |
} |
230 |
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231 |
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void |
232 |
root |
1.11 |
rxvt_img::unshare () |
233 |
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{ |
234 |
root |
1.34 |
if (ref->cnt == 1 && ref->ours) |
235 |
root |
1.11 |
return; |
236 |
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237 |
root |
1.34 |
Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); |
238 |
root |
1.32 |
GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
239 |
root |
1.34 |
XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
240 |
root |
1.32 |
XFreeGC (s->display->dpy, gc); |
241 |
root |
1.11 |
|
242 |
root |
1.32 |
destroy (); |
243 |
root |
1.11 |
|
244 |
root |
1.32 |
pm = pm2; |
245 |
root |
1.34 |
ref = new pixref (ref->w, ref->h); |
246 |
root |
1.11 |
} |
247 |
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248 |
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void |
249 |
root |
1.82 |
rxvt_img::fill (const rgba &c) |
250 |
root |
1.1 |
{ |
251 |
root |
1.82 |
XRenderColor rc = { c.r, c.g, c.b, c.a }; |
252 |
root |
1.77 |
|
253 |
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Display *dpy = s->display->dpy; |
254 |
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Picture src = src_picture (); |
255 |
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XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h); |
256 |
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XRenderFreePicture (dpy, src); |
257 |
root |
1.1 |
} |
258 |
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259 |
root |
1.83 |
void |
260 |
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rxvt_img::add_alpha () |
261 |
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{ |
262 |
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if (format->direct.alphaMask) |
263 |
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return; |
264 |
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265 |
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Display *dpy = s->display->dpy; |
266 |
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267 |
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rxvt_img *img = new rxvt_img (s, find_alpha_format_for (dpy, format), x, y, w, h, repeat); |
268 |
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img->alloc (); |
269 |
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270 |
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Picture src = src_picture (); |
271 |
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Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
272 |
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273 |
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XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
274 |
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275 |
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XRenderFreePicture (dpy, src); |
276 |
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XRenderFreePicture (dpy, dst); |
277 |
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278 |
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::swap (img->ref, ref); |
279 |
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::swap (img->pm , pm ); |
280 |
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281 |
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delete img; |
282 |
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} |
283 |
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284 |
sf-exg |
1.6 |
static void |
285 |
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get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
286 |
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{ |
287 |
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double sigma = radius / 2.0; |
288 |
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double scale = sqrt (2.0 * M_PI) * sigma; |
289 |
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double sum = 0.0; |
290 |
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291 |
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for (int i = 0; i < width; i++) |
292 |
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{ |
293 |
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double x = i - width / 2; |
294 |
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kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
295 |
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sum += kernel[i]; |
296 |
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} |
297 |
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298 |
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params[0] = XDoubleToFixed (width); |
299 |
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params[1] = XDoubleToFixed (1); |
300 |
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301 |
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for (int i = 0; i < width; i++) |
302 |
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params[i+2] = XDoubleToFixed (kernel[i] / sum); |
303 |
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} |
304 |
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|
305 |
sf-exg |
1.22 |
rxvt_img * |
306 |
root |
1.3 |
rxvt_img::blur (int rh, int rv) |
307 |
|
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{ |
308 |
sf-exg |
1.6 |
if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
309 |
sf-exg |
1.22 |
return clone (); |
310 |
sf-exg |
1.6 |
|
311 |
|
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Display *dpy = s->display->dpy; |
312 |
|
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int size = max (rh, rv) * 2 + 1; |
313 |
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double *kernel = (double *)malloc (size * sizeof (double)); |
314 |
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XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
315 |
root |
1.41 |
rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
316 |
root |
1.32 |
img->alloc (); |
317 |
sf-exg |
1.6 |
|
318 |
|
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XRenderPictureAttributes pa; |
319 |
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pa.repeat = RepeatPad; |
320 |
sf-exg |
1.61 |
Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
321 |
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Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
322 |
sf-exg |
1.22 |
|
323 |
|
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Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); |
324 |
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Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); |
325 |
|
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XFreePixmap (dpy, tmp_pm); |
326 |
sf-exg |
1.6 |
|
327 |
|
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if (kernel && params) |
328 |
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{ |
329 |
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size = rh * 2 + 1; |
330 |
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get_gaussian_kernel (rh, size, kernel, params); |
331 |
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|
332 |
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XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
333 |
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XRenderComposite (dpy, |
334 |
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PictOpSrc, |
335 |
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src, |
336 |
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None, |
337 |
sf-exg |
1.22 |
tmp, |
338 |
sf-exg |
1.6 |
0, 0, |
339 |
|
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0, 0, |
340 |
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0, 0, |
341 |
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w, h); |
342 |
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|
343 |
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size = rv * 2 + 1; |
344 |
|
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get_gaussian_kernel (rv, size, kernel, params); |
345 |
|
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::swap (params[0], params[1]); |
346 |
|
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|
347 |
sf-exg |
1.60 |
XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2); |
348 |
sf-exg |
1.6 |
XRenderComposite (dpy, |
349 |
|
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PictOpSrc, |
350 |
sf-exg |
1.22 |
tmp, |
351 |
sf-exg |
1.6 |
None, |
352 |
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dst, |
353 |
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0, 0, |
354 |
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0, 0, |
355 |
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0, 0, |
356 |
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w, h); |
357 |
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} |
358 |
|
|
|
359 |
|
|
free (kernel); |
360 |
|
|
free (params); |
361 |
root |
1.77 |
|
362 |
sf-exg |
1.6 |
XRenderFreePicture (dpy, src); |
363 |
|
|
XRenderFreePicture (dpy, dst); |
364 |
sf-exg |
1.22 |
XRenderFreePicture (dpy, tmp); |
365 |
|
|
|
366 |
|
|
return img; |
367 |
sf-exg |
1.6 |
} |
368 |
|
|
|
369 |
root |
1.74 |
static Picture |
370 |
sf-exg |
1.75 |
create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha) |
371 |
root |
1.74 |
{ |
372 |
|
|
Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
373 |
|
|
|
374 |
|
|
XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
375 |
|
|
XRenderPictureAttributes pa; |
376 |
|
|
pa.repeat = RepeatNormal; |
377 |
sf-exg |
1.75 |
pa.component_alpha = component_alpha; |
378 |
|
|
Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
379 |
root |
1.74 |
|
380 |
|
|
XFreePixmap (dpy, pixmap); |
381 |
|
|
|
382 |
|
|
return mask; |
383 |
|
|
} |
384 |
|
|
|
385 |
root |
1.67 |
static void |
386 |
|
|
extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
387 |
|
|
{ |
388 |
|
|
int32_t x = clamp (c, cl0, cl1); |
389 |
|
|
c -= x; |
390 |
|
|
xc = x; |
391 |
|
|
} |
392 |
|
|
|
393 |
|
|
static bool |
394 |
|
|
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) |
395 |
|
|
{ |
396 |
|
|
extract (cl0, cl1, r, xr); |
397 |
|
|
extract (cl0, cl1, g, xg); |
398 |
|
|
extract (cl0, cl1, b, xb); |
399 |
|
|
extract (cl0, cl1, a, xa); |
400 |
|
|
|
401 |
|
|
return xr | xg | xb | xa; |
402 |
|
|
} |
403 |
|
|
|
404 |
root |
1.3 |
void |
405 |
root |
1.67 |
rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
406 |
root |
1.3 |
{ |
407 |
root |
1.67 |
unshare (); |
408 |
|
|
|
409 |
sf-exg |
1.6 |
Display *dpy = s->display->dpy; |
410 |
|
|
Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
411 |
|
|
|
412 |
root |
1.69 |
// loop should not be needed for brightness, as only -1..1 makes sense |
413 |
root |
1.70 |
//while (r | g | b | a) |
414 |
root |
1.67 |
{ |
415 |
|
|
unsigned short xr, xg, xb, xa; |
416 |
|
|
XRenderColor mask_c; |
417 |
|
|
|
418 |
|
|
if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
419 |
|
|
XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
420 |
|
|
|
421 |
|
|
if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
422 |
|
|
{ |
423 |
|
|
XRenderColor mask_w = { 65535, 65535, 65535, 65535 }; |
424 |
|
|
XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
425 |
root |
1.70 |
mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing |
426 |
root |
1.68 |
mask_c.green = -mask_c.green; |
427 |
|
|
mask_c.blue = -mask_c.blue; |
428 |
|
|
mask_c.alpha = -mask_c.alpha; |
429 |
root |
1.67 |
XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
430 |
|
|
XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
431 |
|
|
} |
432 |
|
|
} |
433 |
sf-exg |
1.6 |
|
434 |
sf-exg |
1.23 |
XRenderFreePicture (dpy, dst); |
435 |
root |
1.3 |
} |
436 |
|
|
|
437 |
|
|
void |
438 |
root |
1.67 |
rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
439 |
root |
1.1 |
{ |
440 |
root |
1.74 |
if (r < 0 || g < 0 || b < 0 || a < 0) |
441 |
|
|
rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
442 |
|
|
|
443 |
|
|
rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
444 |
|
|
img->alloc (); |
445 |
root |
1.82 |
img->fill (rgba (0, 0, 0, 0)); |
446 |
root |
1.74 |
|
447 |
|
|
// premultiply (yeah, these are not exact, sue me or fix it) |
448 |
|
|
r = (r * (a >> 8)) >> 8; |
449 |
|
|
g = (g * (a >> 8)) >> 8; |
450 |
|
|
b = (b * (a >> 8)) >> 8; |
451 |
root |
1.67 |
|
452 |
sf-exg |
1.6 |
Display *dpy = s->display->dpy; |
453 |
|
|
|
454 |
root |
1.74 |
Picture src = src_picture (); |
455 |
|
|
Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
456 |
sf-exg |
1.75 |
Picture mul = create_xrender_mask (dpy, pm, True, True); |
457 |
root |
1.74 |
|
458 |
|
|
//TODO: this operator does not yet implement some useful contrast |
459 |
|
|
while (r | g | b | a) |
460 |
|
|
{ |
461 |
|
|
unsigned short xr, xg, xb, xa; |
462 |
|
|
XRenderColor mask_c; |
463 |
|
|
|
464 |
|
|
if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
465 |
|
|
{ |
466 |
|
|
XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1); |
467 |
|
|
XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h); |
468 |
|
|
} |
469 |
|
|
} |
470 |
sf-exg |
1.6 |
|
471 |
root |
1.74 |
XRenderFreePicture (dpy, mul); |
472 |
sf-exg |
1.23 |
XRenderFreePicture (dpy, dst); |
473 |
root |
1.74 |
XRenderFreePicture (dpy, src); |
474 |
|
|
|
475 |
|
|
::swap (img->ref, ref); |
476 |
|
|
::swap (img->pm , pm ); |
477 |
|
|
|
478 |
|
|
delete img; |
479 |
root |
1.1 |
} |
480 |
|
|
|
481 |
root |
1.3 |
rxvt_img * |
482 |
root |
1.11 |
rxvt_img::clone () |
483 |
root |
1.3 |
{ |
484 |
root |
1.32 |
return new rxvt_img (*this); |
485 |
root |
1.3 |
} |
486 |
|
|
|
487 |
|
|
rxvt_img * |
488 |
root |
1.33 |
rxvt_img::reify () |
489 |
root |
1.19 |
{ |
490 |
root |
1.35 |
if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
491 |
|
|
return clone (); |
492 |
|
|
|
493 |
root |
1.40 |
Display *dpy = s->display->dpy; |
494 |
|
|
|
495 |
root |
1.62 |
// add an alpha channel if... |
496 |
|
|
bool alpha = !format->direct.alphaMask // pixmap has none yet |
497 |
|
|
&& (x || y) // we need one because of non-zero offset |
498 |
|
|
&& repeat == RepeatNone; // and we have no good pixels to fill with |
499 |
root |
1.40 |
|
500 |
root |
1.46 |
rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
501 |
root |
1.32 |
img->alloc (); |
502 |
root |
1.19 |
|
503 |
root |
1.34 |
Picture src = src_picture (); |
504 |
|
|
Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
505 |
root |
1.33 |
|
506 |
root |
1.42 |
if (alpha) |
507 |
|
|
{ |
508 |
|
|
XRenderColor rc = { 0, 0, 0, 0 }; |
509 |
root |
1.44 |
XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
510 |
root |
1.42 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h); |
511 |
|
|
} |
512 |
|
|
else |
513 |
|
|
XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h); |
514 |
|
|
|
515 |
root |
1.33 |
XRenderFreePicture (dpy, src); |
516 |
|
|
XRenderFreePicture (dpy, dst); |
517 |
root |
1.19 |
|
518 |
root |
1.33 |
return img; |
519 |
|
|
} |
520 |
root |
1.19 |
|
521 |
root |
1.33 |
rxvt_img * |
522 |
|
|
rxvt_img::sub_rect (int x, int y, int width, int height) |
523 |
|
|
{ |
524 |
|
|
rxvt_img *img = clone (); |
525 |
|
|
|
526 |
|
|
img->x += x; |
527 |
|
|
img->y += y; |
528 |
root |
1.19 |
|
529 |
root |
1.37 |
if (w != width || h != height) |
530 |
|
|
{ |
531 |
|
|
img->w = width; |
532 |
|
|
img->h = height; |
533 |
|
|
|
534 |
root |
1.39 |
rxvt_img *img2 = img->reify (); |
535 |
|
|
delete img; |
536 |
|
|
img = img2; |
537 |
root |
1.37 |
} |
538 |
root |
1.36 |
|
539 |
root |
1.19 |
return img; |
540 |
|
|
} |
541 |
|
|
|
542 |
root |
1.80 |
static void |
543 |
|
|
mat_invert (double mat[3][3], double (&inv)[3][3]) |
544 |
|
|
{ |
545 |
|
|
double s0 = mat [2][2] * mat [1][1] - mat [2][1] * mat [1][2]; |
546 |
|
|
double s1 = mat [2][1] * mat [0][2] - mat [2][2] * mat [0][1]; |
547 |
|
|
double s2 = mat [1][2] * mat [0][1] - mat [1][1] * mat [0][2]; |
548 |
|
|
|
549 |
|
|
double invdet = 1. / (mat [0][0] * s0 + mat [1][0] * s1 + mat [2][0] * s2); |
550 |
|
|
|
551 |
|
|
inv [0][0] = invdet * s0; |
552 |
|
|
inv [0][1] = invdet * s1; |
553 |
|
|
inv [0][2] = invdet * s2; |
554 |
|
|
|
555 |
|
|
inv [1][0] = invdet * (mat [2][0] * mat [1][2] - mat [2][2] * mat [1][0]); |
556 |
|
|
inv [1][1] = invdet * (mat [2][2] * mat [0][0] - mat [2][0] * mat [0][2]); |
557 |
|
|
inv [1][2] = invdet * (mat [1][0] * mat [0][2] - mat [1][2] * mat [0][0]); |
558 |
|
|
|
559 |
|
|
inv [2][0] = invdet * (mat [2][1] * mat [1][0] - mat [2][0] * mat [1][1]); |
560 |
|
|
inv [2][1] = invdet * (mat [2][0] * mat [0][1] - mat [2][1] * mat [0][0]); |
561 |
|
|
inv [2][2] = invdet * (mat [1][1] * mat [0][0] - mat [1][0] * mat [0][1]); |
562 |
|
|
} |
563 |
|
|
|
564 |
|
|
static double |
565 |
|
|
mat_apply (double mat[3][3], int i, double x, double y) |
566 |
|
|
{ |
567 |
|
|
double v = mat [i][0] * x + mat [i][1] * y + mat [i][2]; |
568 |
|
|
double w = mat [2][0] * x + mat [2][1] * y + mat [2][2]; |
569 |
|
|
|
570 |
|
|
return v * (1. / w); |
571 |
|
|
} |
572 |
|
|
|
573 |
root |
1.19 |
rxvt_img * |
574 |
root |
1.80 |
rxvt_img::transform (double matrix[3][3]) |
575 |
root |
1.3 |
{ |
576 |
root |
1.80 |
// find new offset |
577 |
|
|
int ox = mat_apply (matrix, 0, x, y); |
578 |
|
|
int oy = mat_apply (matrix, 1, x, y); |
579 |
|
|
|
580 |
|
|
// calculate new pixel bounding box coordinates |
581 |
root |
1.81 |
double d [2], rmin[2], rmax[2]; |
582 |
root |
1.80 |
|
583 |
|
|
for (int i = 0; i < 2; ++i) |
584 |
|
|
{ |
585 |
|
|
double v; |
586 |
root |
1.81 |
v = mat_apply (matrix, i, 0, 0); rmin [i] = rmax [i] = v; d [i] = v; |
587 |
root |
1.80 |
v = mat_apply (matrix, i, w, 0); min_it (rmin [i], v); max_it (rmax [i], v); |
588 |
|
|
v = mat_apply (matrix, i, 0, h); min_it (rmin [i], v); max_it (rmax [i], v); |
589 |
|
|
v = mat_apply (matrix, i, w, h); min_it (rmin [i], v); max_it (rmax [i], v); |
590 |
|
|
} |
591 |
|
|
|
592 |
|
|
int dx = floor (rmin [0]); |
593 |
|
|
int dy = floor (rmin [1]); |
594 |
|
|
|
595 |
|
|
int new_width = ceil (rmax [0] - dx); |
596 |
|
|
int new_height = ceil (rmax [1] - dy); |
597 |
|
|
|
598 |
|
|
double inv[3][3]; |
599 |
|
|
mat_invert (matrix, inv); |
600 |
|
|
|
601 |
root |
1.81 |
rxvt_img *img = new rxvt_img (s, format, ox - dx - d [0], oy - dy - d [1], new_width, new_height, repeat); |
602 |
root |
1.32 |
img->alloc (); |
603 |
root |
1.12 |
|
604 |
|
|
Display *dpy = s->display->dpy; |
605 |
root |
1.34 |
Picture src = src_picture (); |
606 |
|
|
Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
607 |
root |
1.12 |
|
608 |
|
|
XTransform xfrm; |
609 |
|
|
|
610 |
|
|
for (int i = 0; i < 3; ++i) |
611 |
|
|
for (int j = 0; j < 3; ++j) |
612 |
root |
1.80 |
xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
613 |
root |
1.33 |
|
614 |
root |
1.17 |
XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
615 |
root |
1.12 |
XRenderSetPictureTransform (dpy, src, &xfrm); |
616 |
root |
1.80 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, dx, dy, 0, 0, 0, 0, new_width, new_height); |
617 |
root |
1.12 |
|
618 |
|
|
XRenderFreePicture (dpy, src); |
619 |
|
|
XRenderFreePicture (dpy, dst); |
620 |
|
|
|
621 |
|
|
return img; |
622 |
root |
1.3 |
} |
623 |
|
|
|
624 |
|
|
rxvt_img * |
625 |
|
|
rxvt_img::scale (int new_width, int new_height) |
626 |
|
|
{ |
627 |
sf-exg |
1.43 |
if (w == new_width && h == new_height) |
628 |
|
|
return clone (); |
629 |
|
|
|
630 |
root |
1.80 |
double matrix[3][3] = { |
631 |
|
|
{ new_width / (double)w, 0, 0 }, |
632 |
|
|
{ 0, new_height / (double)h, 0 }, |
633 |
|
|
{ 0, 0, 1 } |
634 |
root |
1.11 |
}; |
635 |
|
|
|
636 |
root |
1.42 |
int old_repeat_mode = repeat; |
637 |
sf-exg |
1.78 |
repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
638 |
root |
1.42 |
|
639 |
root |
1.80 |
rxvt_img *img = transform (matrix); |
640 |
root |
1.42 |
|
641 |
|
|
repeat = old_repeat_mode; |
642 |
|
|
img->repeat = repeat; |
643 |
|
|
|
644 |
|
|
return img; |
645 |
root |
1.3 |
} |
646 |
|
|
|
647 |
sf-exg |
1.7 |
rxvt_img * |
648 |
root |
1.80 |
rxvt_img::rotate (int cx, int cy, double phi) |
649 |
root |
1.17 |
{ |
650 |
|
|
double s = sin (phi); |
651 |
|
|
double c = cos (phi); |
652 |
|
|
|
653 |
root |
1.80 |
double matrix[3][3] = { |
654 |
root |
1.81 |
{ c, -s, cx - c * cx + s * cy }, |
655 |
|
|
{ s, c, cy - s * cx - c * cy }, |
656 |
|
|
{ 0, 0, 1 } |
657 |
|
|
//{ c, -s, 0 }, |
658 |
|
|
//{ s, c, 0 }, |
659 |
|
|
//{ 0, 0, 1 } |
660 |
root |
1.17 |
}; |
661 |
|
|
|
662 |
root |
1.81 |
//move (-cx, -cy); |
663 |
root |
1.80 |
rxvt_img *img = transform (matrix); |
664 |
root |
1.81 |
//move ( cx, cy); |
665 |
|
|
//img->move (cx, cy); |
666 |
root |
1.80 |
|
667 |
|
|
return img; |
668 |
root |
1.17 |
} |
669 |
|
|
|
670 |
|
|
rxvt_img * |
671 |
root |
1.82 |
rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
672 |
sf-exg |
1.7 |
{ |
673 |
root |
1.32 |
if (new_format == format) |
674 |
|
|
return clone (); |
675 |
|
|
|
676 |
root |
1.45 |
rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); |
677 |
root |
1.32 |
img->alloc (); |
678 |
root |
1.9 |
|
679 |
sf-exg |
1.7 |
Display *dpy = s->display->dpy; |
680 |
root |
1.34 |
Picture src = src_picture (); |
681 |
root |
1.8 |
Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
682 |
root |
1.27 |
int op = PictOpSrc; |
683 |
sf-exg |
1.7 |
|
684 |
root |
1.29 |
if (format->direct.alphaMask && !new_format->direct.alphaMask) |
685 |
root |
1.27 |
{ |
686 |
|
|
// does it have to be that complicated |
687 |
root |
1.82 |
XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
688 |
root |
1.28 |
XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
689 |
root |
1.27 |
|
690 |
|
|
op = PictOpOver; |
691 |
|
|
} |
692 |
|
|
|
693 |
|
|
XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
694 |
sf-exg |
1.7 |
|
695 |
|
|
XRenderFreePicture (dpy, src); |
696 |
|
|
XRenderFreePicture (dpy, dst); |
697 |
|
|
|
698 |
|
|
return img; |
699 |
|
|
} |
700 |
root |
1.3 |
|
701 |
sf-exg |
1.24 |
rxvt_img * |
702 |
|
|
rxvt_img::blend (rxvt_img *img, double factor) |
703 |
|
|
{ |
704 |
|
|
rxvt_img *img2 = clone (); |
705 |
|
|
Display *dpy = s->display->dpy; |
706 |
sf-exg |
1.38 |
Picture src = img->src_picture (); |
707 |
sf-exg |
1.24 |
Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
708 |
sf-exg |
1.75 |
Picture mask = create_xrender_mask (dpy, img->pm, False, False); |
709 |
sf-exg |
1.24 |
|
710 |
|
|
XRenderColor mask_c; |
711 |
|
|
|
712 |
|
|
mask_c.alpha = float_to_component (factor); |
713 |
|
|
mask_c.red = |
714 |
|
|
mask_c.green = |
715 |
|
|
mask_c.blue = 0; |
716 |
|
|
XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
717 |
|
|
|
718 |
|
|
XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); |
719 |
|
|
|
720 |
|
|
XRenderFreePicture (dpy, src); |
721 |
|
|
XRenderFreePicture (dpy, dst); |
722 |
|
|
XRenderFreePicture (dpy, mask); |
723 |
|
|
|
724 |
|
|
return img2; |
725 |
|
|
} |
726 |
|
|
|
727 |
root |
1.1 |
#endif |
728 |
|
|
|