1 | /*----------------------------------------------------------------------* |
1 | /*----------------------------------------------------------------------* |
2 | * File: rxvtimg.h |
2 | * File: rxvtimg.C |
3 | *----------------------------------------------------------------------* |
3 | *----------------------------------------------------------------------* |
4 | * |
4 | * |
5 | * All portions of code are copyright by their respective author/s. |
5 | * All portions of code are copyright by their respective author/s. |
6 | * Copyright (c) 2012 Marc Lehmann <schmorp@schmorp.de> |
6 | * Copyright (c) 2012 Marc Lehmann <schmorp@schmorp.de> |
7 | * Copyright (c) 2012 Emanuele Giaquinta <e.giaquinta@glauco.it> |
7 | * Copyright (c) 2012 Emanuele Giaquinta <e.giaquinta@glauco.it> |
8 | * |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify |
9 | * This program is free software; you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License as published by |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 2 of the License, or |
11 | * the Free Software Foundation; either version 3 of the License, or |
12 | * (at your option) any later version. |
12 | * (at your option) any later version. |
13 | * |
13 | * |
14 | * This program is distributed in the hope that it will be useful, |
14 | * This program is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
… | |
… | |
30 | |
30 | |
31 | typedef rxvt_img::nv nv; |
31 | typedef rxvt_img::nv nv; |
32 | |
32 | |
33 | namespace |
33 | namespace |
34 | { |
34 | { |
35 | |
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36 | struct mat3x3 |
35 | struct mat3x3 |
37 | { |
36 | { |
38 | nv v[3][3]; |
37 | nv v[3][3]; |
39 | |
38 | |
40 | mat3x3 () |
39 | mat3x3 () |
… | |
… | |
51 | v[0][0] = v11; v[0][1] = v12; v[0][2] = v13; |
50 | v[0][0] = v11; v[0][1] = v12; v[0][2] = v13; |
52 | v[1][0] = v21; v[1][1] = v22; v[1][2] = v23; |
51 | v[1][0] = v21; v[1][1] = v22; v[1][2] = v23; |
53 | v[2][0] = v31; v[2][1] = v32; v[2][2] = v33; |
52 | v[2][0] = v31; v[2][1] = v32; v[2][2] = v33; |
54 | } |
53 | } |
55 | |
54 | |
56 | mat3x3 invert (); |
55 | mat3x3 inverse (); |
57 | |
56 | |
58 | nv *operator [](int i) { return &v[i][0]; } |
57 | nv *operator [](int i) { return &v[i][0]; } |
59 | const nv *operator [](int i) const { return &v[i][0]; } |
58 | const nv *operator [](int i) const { return &v[i][0]; } |
60 | |
59 | |
61 | operator const nv * () const { return &v[0][0]; } |
60 | operator const nv * () const { return &v[0][0]; } |
… | |
… | |
76 | static mat3x3 scale (nv s, nv t); |
75 | static mat3x3 scale (nv s, nv t); |
77 | static mat3x3 rotate (nv phi); |
76 | static mat3x3 rotate (nv phi); |
78 | }; |
77 | }; |
79 | |
78 | |
80 | mat3x3 |
79 | mat3x3 |
81 | mat3x3::invert () |
80 | mat3x3::inverse () |
82 | { |
81 | { |
83 | mat3x3 &m = *this; |
82 | mat3x3 &m = *this; |
84 | mat3x3 inv; |
83 | mat3x3 inv; |
85 | |
84 | |
86 | nv s0 = m[2][2] * m[1][1] - m[2][1] * m[1][2]; |
85 | nv s0 = m[2][2] * m[1][1] - m[2][1] * m[1][2]; |
… | |
… | |
150 | s, c, 0, |
149 | s, c, 0, |
151 | 0, 0, 1 |
150 | 0, 0, 1 |
152 | ); |
151 | ); |
153 | } |
152 | } |
154 | |
153 | |
155 | } |
154 | struct composer |
156 | |
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157 | #if 0 |
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158 | struct pict |
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159 | { |
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160 | Display *dpy; |
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161 | Picture pic; |
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162 | |
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163 | operator Picture () const |
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164 | { |
155 | { |
165 | return pic; |
156 | rxvt_img *srcimg, *dstimg; |
166 | } |
157 | Picture src, dst, msk; |
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158 | Display *dpy; |
167 | |
159 | |
168 | pict () |
160 | ecb_noinline |
169 | : pic (0) |
161 | composer (rxvt_img *srcimg, rxvt_img *dstimg = 0) |
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162 | : srcimg (srcimg), dstimg (dstimg), msk (0) |
170 | { |
163 | { |
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164 | if (!this->dstimg) |
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165 | this->dstimg = srcimg->new_empty (); |
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166 | else if (!this->dstimg->pm) // somewhat unsatisfying |
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167 | this->dstimg->alloc (); |
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168 | |
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169 | dpy = srcimg->d->dpy; |
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170 | src = srcimg->picture (); |
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171 | dst = this->dstimg->picture (); |
171 | } |
172 | } |
172 | |
173 | |
173 | pict (rxvt_img *img, XRenderPictFormat *format = 0) |
174 | ecb_noinline |
174 | : dpy (img->s->display->dpy) |
175 | void mask (bool rgb = true, int w = 1, int h = 1) |
175 | { |
176 | { |
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177 | Pixmap pixmap = XCreatePixmap (dpy, srcimg->pm, w, h, rgb ? 32 : 8); |
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178 | |
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179 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, rgb ? PictStandardARGB32 : PictStandardA8); |
176 | XRenderPictureAttributes pa; |
180 | XRenderPictureAttributes pa; |
177 | pa.repeat = img->repeat; |
181 | pa.repeat = RepeatNormal; |
178 | pic = XRenderCreatePicture (dpy, img->pm, format ? format : img->format, CPRepeat, &pa); |
182 | pa.component_alpha = rgb; |
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183 | msk = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
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184 | |
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185 | XFreePixmap (dpy, pixmap); |
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186 | |
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187 | ecb_assume (msk); |
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188 | } |
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189 | |
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190 | // CreateSolidFill creates a very very very weird picture |
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191 | void mask (const rgba &c) |
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192 | { |
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193 | // the casts are needed in C++11 (see 8.5.1) |
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194 | XRenderColor rc = { |
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195 | (unsigned short)(c.r * c.a / 65535), |
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196 | (unsigned short)(c.g * c.a / 65535), |
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197 | (unsigned short)(c.b * c.a / 65535), |
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198 | c.a |
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199 | }; |
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200 | msk = XRenderCreateSolidFill (dpy, &rc); |
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201 | ecb_assume (msk); |
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202 | } |
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203 | |
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204 | void fill (const rgba &c) |
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205 | { |
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206 | XRenderColor rc = { |
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207 | (unsigned short)(c.r * c.a / 65535), |
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208 | (unsigned short)(c.g * c.a / 65535), |
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209 | (unsigned short)(c.b * c.a / 65535), |
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210 | c.a |
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211 | }; |
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212 | |
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213 | XRenderFillRectangle (dpy, PictOpSrc, msk, &rc, 0, 0, 1, 1); |
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214 | } |
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215 | |
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216 | operator rxvt_img *() |
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217 | { |
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218 | return dstimg; |
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219 | } |
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220 | |
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221 | ecb_noinline |
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222 | ~composer () |
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223 | { |
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224 | XRenderFreePicture (dpy, src); |
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225 | XRenderFreePicture (dpy, dst); |
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226 | if (msk) XRenderFreePicture (dpy, msk); |
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227 | } |
179 | } |
228 | }; |
180 | |
229 | } |
181 | ~pict () |
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182 | { |
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183 | if (pic) |
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184 | XRenderFreePicture (dpy, pic); |
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185 | } |
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186 | }; |
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187 | #endif |
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188 | |
230 | |
189 | static XRenderPictFormat * |
231 | static XRenderPictFormat * |
190 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
232 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
191 | { |
233 | { |
192 | if (format->direct.alphaMask) |
234 | if (format->direct.alphaMask) |
… | |
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205 | // should be a very good fallback |
247 | // should be a very good fallback |
206 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
248 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
207 | } |
249 | } |
208 | |
250 | |
209 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
251 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
210 | : s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
252 | : d(screen->display), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
211 | pm(0), ref(0) |
253 | pm(0), ref(0) |
212 | { |
254 | { |
213 | } |
255 | } |
214 | |
256 | |
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257 | rxvt_img::rxvt_img (rxvt_display *display, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
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258 | : d(display), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
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259 | pm(0), ref(0) |
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260 | { |
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261 | } |
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262 | |
215 | rxvt_img::rxvt_img (const rxvt_img &img) |
263 | rxvt_img::rxvt_img (const rxvt_img &img) |
216 | : 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) |
264 | : d(img.d), x(img.x), y(img.y), w(img.w), h(img.h), format(img.format), repeat(img.repeat), pm(img.pm), ref(img.ref) |
217 | { |
265 | { |
218 | ++ref->cnt; |
266 | ++ref->cnt; |
219 | } |
267 | } |
220 | |
268 | |
221 | rxvt_img * |
269 | rxvt_img * |
222 | rxvt_img::new_from_root (rxvt_screen *s) |
270 | rxvt_img::new_from_root (rxvt_screen *s) |
223 | { |
271 | { |
224 | Display *dpy = s->display->dpy; |
272 | Display *dpy = s->dpy; |
225 | unsigned int root_pm_w, root_pm_h; |
273 | unsigned int root_pm_w, root_pm_h; |
226 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]); |
274 | Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_XROOTPMAP_ID]); |
227 | if (root_pixmap == None) |
275 | if (root_pixmap == None) |
228 | root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]); |
276 | root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_ESETROOT_PMAP_ID]); |
229 | |
277 | |
230 | if (root_pixmap == None) |
278 | if (root_pixmap == None) |
231 | return 0; |
279 | return 0; |
232 | |
280 | |
233 | Window wdummy; |
281 | Window wdummy; |
… | |
… | |
256 | # if HAVE_PIXBUF |
304 | # if HAVE_PIXBUF |
257 | |
305 | |
258 | rxvt_img * |
306 | rxvt_img * |
259 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
307 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
260 | { |
308 | { |
261 | Display *dpy = s->display->dpy; |
309 | Display *dpy = s->dpy; |
262 | |
310 | |
263 | int width = gdk_pixbuf_get_width (pb); |
311 | int width = gdk_pixbuf_get_width (pb); |
264 | int height = gdk_pixbuf_get_height (pb); |
312 | int height = gdk_pixbuf_get_height (pb); |
265 | |
313 | |
266 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
314 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
… | |
… | |
308 | for (int y = 0; y < height; y++) |
356 | for (int y = 0; y < height; y++) |
309 | { |
357 | { |
310 | unsigned char *src = row; |
358 | unsigned char *src = row; |
311 | uint32_t *dst = (uint32_t *)line; |
359 | uint32_t *dst = (uint32_t *)line; |
312 | |
360 | |
313 | if (!pb_has_alpha) |
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314 | for (int x = 0; x < width; x++) |
361 | for (int x = 0; x < width; x++) |
315 | { |
362 | { |
316 | uint8_t r = *src++; |
363 | uint8_t r = *src++; |
317 | uint8_t g = *src++; |
364 | uint8_t g = *src++; |
318 | uint8_t b = *src++; |
365 | uint8_t b = *src++; |
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366 | uint8_t a = *src; |
319 | |
367 | |
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368 | // this is done so it can be jump-free, but newer gcc's clone inner the loop |
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369 | a = pb_has_alpha ? a : 255; |
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370 | src += pb_has_alpha; |
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371 | |
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372 | r = (r * a + 127) / 255; |
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373 | g = (g * a + 127) / 255; |
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374 | b = (b * a + 127) / 255; |
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375 | |
320 | uint32_t v = (255 << 24) | (r << 16) | (g << 8) | b; |
376 | uint32_t v = (a << 24) | (r << 16) | (g << 8) | b; |
321 | |
377 | |
322 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
378 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
323 | v = ecb_bswap32 (v); |
379 | v = ecb_bswap32 (v); |
324 | |
380 | |
325 | *dst++ = v; |
381 | *dst++ = v; |
326 | } |
382 | } |
327 | else |
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328 | for (int x = 0; x < width; x++) |
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329 | { |
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330 | uint32_t v = *(uint32_t *)src; src += 4; |
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331 | |
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332 | if (ecb_big_endian ()) |
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333 | v = ecb_bswap32 (v); |
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334 | |
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335 | v = ecb_rotl32 (v, 8); // abgr to bgra |
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336 | |
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337 | if (!byte_order_mismatch) |
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338 | v = ecb_bswap32 (v); |
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339 | |
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340 | *dst++ = v; |
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341 | } |
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342 | |
383 | |
343 | row += rowstride; |
384 | row += rowstride; |
344 | line += xi.bytes_per_line; |
385 | line += xi.bytes_per_line; |
345 | } |
386 | } |
346 | |
387 | |
… | |
… | |
361 | { |
402 | { |
362 | GError *err = 0; |
403 | GError *err = 0; |
363 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
404 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
364 | |
405 | |
365 | if (!pb) |
406 | if (!pb) |
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407 | try |
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408 | { |
366 | rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
409 | rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
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410 | } |
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411 | catch (...) |
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412 | { |
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413 | g_error_free (err); |
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414 | throw; |
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415 | } |
367 | |
416 | |
368 | rxvt_img *img = new_from_pixbuf (s, pb); |
417 | rxvt_img *img = new_from_pixbuf (s, pb); |
369 | |
418 | |
370 | g_object_unref (pb); |
419 | g_object_unref (pb); |
371 | |
420 | |
… | |
… | |
379 | { |
428 | { |
380 | if (--ref->cnt) |
429 | if (--ref->cnt) |
381 | return; |
430 | return; |
382 | |
431 | |
383 | if (pm && ref->ours) |
432 | if (pm && ref->ours) |
384 | XFreePixmap (s->display->dpy, pm); |
433 | XFreePixmap (d->dpy, pm); |
385 | |
434 | |
386 | delete ref; |
435 | delete ref; |
387 | } |
436 | } |
388 | |
437 | |
389 | rxvt_img::~rxvt_img () |
438 | rxvt_img::~rxvt_img () |
… | |
… | |
392 | } |
441 | } |
393 | |
442 | |
394 | void |
443 | void |
395 | rxvt_img::alloc () |
444 | rxvt_img::alloc () |
396 | { |
445 | { |
397 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
446 | pm = XCreatePixmap (d->dpy, d->root, w, h, format->depth); |
398 | ref = new pixref (w, h); |
447 | ref = new pixref (w, h); |
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448 | } |
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449 | |
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450 | rxvt_img * |
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451 | rxvt_img::new_empty () |
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452 | { |
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453 | rxvt_img *img = new rxvt_img (d, format, x, y, w, h, repeat); |
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454 | img->alloc (); |
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455 | |
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456 | return img; |
399 | } |
457 | } |
400 | |
458 | |
401 | Picture |
459 | Picture |
402 | rxvt_img::picture () |
460 | rxvt_img::picture () |
403 | { |
461 | { |
404 | Display *dpy = s->display->dpy; |
462 | Display *dpy = d->dpy; |
405 | |
463 | |
406 | XRenderPictureAttributes pa; |
464 | XRenderPictureAttributes pa; |
407 | pa.repeat = repeat; |
465 | pa.repeat = repeat; |
408 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
466 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
409 | |
467 | |
… | |
… | |
414 | rxvt_img::unshare () |
472 | rxvt_img::unshare () |
415 | { |
473 | { |
416 | if (ref->cnt == 1 && ref->ours) |
474 | if (ref->cnt == 1 && ref->ours) |
417 | return; |
475 | return; |
418 | |
476 | |
419 | Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); |
477 | Pixmap pm2 = XCreatePixmap (d->dpy, d->root, ref->w, ref->h, format->depth); |
420 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
478 | GC gc = XCreateGC (d->dpy, pm, 0, 0); |
421 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
479 | XCopyArea (d->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
422 | XFreeGC (s->display->dpy, gc); |
480 | XFreeGC (d->dpy, gc); |
423 | |
481 | |
424 | destroy (); |
482 | destroy (); |
425 | |
483 | |
426 | pm = pm2; |
484 | pm = pm2; |
427 | ref = new pixref (ref->w, ref->h); |
485 | ref = new pixref (ref->w, ref->h); |
428 | } |
486 | } |
429 | |
487 | |
430 | void |
488 | void |
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489 | rxvt_img::fill (const rgba &c, int x, int y, int w, int h) |
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490 | { |
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491 | XRenderColor rc = { c.r, c.g, c.b, c.a }; |
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492 | |
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493 | Display *dpy = d->dpy; |
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494 | Picture src = picture (); |
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495 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, x, y, w, h); |
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496 | XRenderFreePicture (dpy, src); |
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497 | } |
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498 | |
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499 | void |
431 | rxvt_img::fill (const rgba &c) |
500 | rxvt_img::fill (const rgba &c) |
432 | { |
501 | { |
433 | XRenderColor rc = { c.r, c.g, c.b, c.a }; |
502 | fill (c, 0, 0, w, h); |
434 | |
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435 | Display *dpy = s->display->dpy; |
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436 | Picture src = picture (); |
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437 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h); |
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438 | XRenderFreePicture (dpy, src); |
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439 | } |
503 | } |
440 | |
504 | |
441 | void |
505 | void |
442 | rxvt_img::add_alpha () |
506 | rxvt_img::add_alpha () |
443 | { |
507 | { |
444 | if (format->direct.alphaMask) |
508 | if (format->direct.alphaMask) |
445 | return; |
509 | return; |
446 | |
510 | |
447 | Display *dpy = s->display->dpy; |
511 | composer cc (this, new rxvt_img (d, find_alpha_format_for (d->dpy, format), x, y, w, h, repeat)); |
448 | |
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449 | rxvt_img *img = new rxvt_img (s, find_alpha_format_for (dpy, format), x, y, w, h, repeat); |
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450 | img->alloc (); |
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451 | |
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452 | Picture src = picture (); |
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453 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
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454 | |
512 | |
455 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
513 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
456 | |
514 | |
457 | XRenderFreePicture (dpy, src); |
515 | rxvt_img *img = cc; |
458 | XRenderFreePicture (dpy, dst); |
|
|
459 | |
516 | |
460 | ::swap (img->ref, ref); |
517 | ::swap (img->ref, ref); |
461 | ::swap (img->pm , pm ); |
518 | ::swap (img->pm , pm ); |
462 | |
519 | |
463 | delete img; |
520 | delete img; |
… | |
… | |
485 | } |
542 | } |
486 | |
543 | |
487 | rxvt_img * |
544 | rxvt_img * |
488 | rxvt_img::blur (int rh, int rv) |
545 | rxvt_img::blur (int rh, int rv) |
489 | { |
546 | { |
490 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
547 | if (!(d->flags & DISPLAY_HAS_RENDER_CONV)) |
491 | return clone (); |
548 | return clone (); |
492 | |
549 | |
493 | Display *dpy = s->display->dpy; |
550 | Display *dpy = d->dpy; |
494 | int size = max (rh, rv) * 2 + 1; |
551 | int size = max (rh, rv) * 2 + 1; |
495 | nv *kernel = (nv *)malloc (size * sizeof (nv)); |
552 | nv *kernel = (nv *)malloc (size * sizeof (nv)); |
496 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
553 | XFixed *params = rxvt_temp_buf<XFixed> (size + 2); |
497 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
554 | rxvt_img *img = new_empty (); |
498 | img->alloc (); |
|
|
499 | |
555 | |
500 | XRenderPictureAttributes pa; |
556 | XRenderPictureAttributes pa; |
501 | pa.repeat = RepeatPad; |
557 | pa.repeat = RepeatPad; |
502 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
558 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
503 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
559 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
… | |
… | |
537 | 0, 0, |
593 | 0, 0, |
538 | w, h); |
594 | w, h); |
539 | } |
595 | } |
540 | |
596 | |
541 | free (kernel); |
597 | free (kernel); |
542 | free (params); |
|
|
543 | |
598 | |
544 | XRenderFreePicture (dpy, src); |
599 | XRenderFreePicture (dpy, src); |
545 | XRenderFreePicture (dpy, dst); |
600 | XRenderFreePicture (dpy, dst); |
546 | XRenderFreePicture (dpy, tmp); |
601 | XRenderFreePicture (dpy, tmp); |
547 | |
602 | |
548 | return img; |
603 | return img; |
549 | } |
604 | } |
550 | |
605 | |
551 | static Picture |
606 | rxvt_img * |
552 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha) |
607 | rxvt_img::muladd (nv mul, nv add) |
553 | { |
608 | { |
554 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
609 | // STEP 1: double the image width, fill all odd columns with white (==1) |
555 | |
610 | |
556 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
611 | composer cc (this, new rxvt_img (d, format, 0, 0, w * 2, h, repeat)); |
557 | XRenderPictureAttributes pa; |
|
|
558 | pa.repeat = RepeatNormal; |
|
|
559 | pa.component_alpha = component_alpha; |
|
|
560 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
|
|
561 | |
612 | |
562 | XFreePixmap (dpy, pixmap); |
613 | // why the hell does XRenderSetPictureTransform want a writable matrix :( |
|
|
614 | // that keeps us from just static const'ing this matrix. |
|
|
615 | XTransform h_double = { |
|
|
616 | 0x08000, 0, 0, |
|
|
617 | 0, 0x10000, 0, |
|
|
618 | 0, 0, 0x10000 |
|
|
619 | }; |
563 | |
620 | |
564 | return mask; |
621 | XRenderSetPictureFilter (cc.dpy, cc.src, "nearest", 0, 0); |
565 | } |
622 | XRenderSetPictureTransform (cc.dpy, cc.src, &h_double); |
|
|
623 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
566 | |
624 | |
567 | static void |
625 | cc.mask (false, 2, 1); |
|
|
626 | |
|
|
627 | static const XRenderColor c0 = { 0, 0, 0, 0 }; |
|
|
628 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c0, 0, 0, 1, 1); |
|
|
629 | static const XRenderColor c1 = { 65535, 65535, 65535, 65535 }; |
|
|
630 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c1, 1, 0, 1, 1); |
|
|
631 | |
|
|
632 | Picture white = XRenderCreateSolidFill (cc.dpy, &c1); |
|
|
633 | |
|
|
634 | XRenderComposite (cc.dpy, PictOpOver, white, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
|
|
635 | |
|
|
636 | XRenderFreePicture (cc.dpy, white); |
|
|
637 | |
|
|
638 | // STEP 2: convolve the image with a 3x1 filter |
|
|
639 | // a 2x1 filter would obviously suffice, but given the total lack of specification |
|
|
640 | // for xrender, I expect different xrender implementations to randomly diverge. |
|
|
641 | // we also halve the image, and hope for the best (again, for lack of specs). |
|
|
642 | composer cc2 (cc.dstimg); |
|
|
643 | |
|
|
644 | XFixed kernel [] = { |
|
|
645 | XDoubleToFixed (3), XDoubleToFixed (1), |
|
|
646 | XDoubleToFixed (0), XDoubleToFixed (mul), XDoubleToFixed (add) |
|
|
647 | }; |
|
|
648 | |
|
|
649 | XTransform h_halve = { |
|
|
650 | 0x20000, 0, 0, |
|
|
651 | 0, 0x10000, 0, |
|
|
652 | 0, 0, 0x10000 |
|
|
653 | }; |
|
|
654 | |
|
|
655 | XRenderSetPictureFilter (cc.dpy, cc2.src, "nearest", 0, 0); |
|
|
656 | XRenderSetPictureTransform (cc.dpy, cc2.src, &h_halve); |
|
|
657 | XRenderSetPictureFilter (cc.dpy, cc2.src, FilterConvolution, kernel, ecb_array_length (kernel)); |
|
|
658 | |
|
|
659 | XRenderComposite (cc.dpy, PictOpSrc, cc2.src, None, cc2.dst, 0, 0, 0, 0, 0, 0, w * 2, h); |
|
|
660 | |
|
|
661 | return cc2; |
|
|
662 | } |
|
|
663 | |
|
|
664 | ecb_noinline static void |
568 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
665 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
569 | { |
666 | { |
570 | int32_t x = clamp (c, cl0, cl1); |
667 | int32_t x = clamp (c, cl0, cl1); |
571 | c -= x; |
668 | c -= x; |
572 | xc = x; |
669 | xc = x; |
573 | } |
670 | } |
574 | |
671 | |
575 | static bool |
672 | ecb_noinline static bool |
576 | 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) |
673 | 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) |
577 | { |
674 | { |
578 | extract (cl0, cl1, r, xr); |
675 | extract (cl0, cl1, r, xr); |
579 | extract (cl0, cl1, g, xg); |
676 | extract (cl0, cl1, g, xg); |
580 | extract (cl0, cl1, b, xb); |
677 | extract (cl0, cl1, b, xb); |
… | |
… | |
586 | void |
683 | void |
587 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
684 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
588 | { |
685 | { |
589 | unshare (); |
686 | unshare (); |
590 | |
687 | |
591 | Display *dpy = s->display->dpy; |
688 | Display *dpy = d->dpy; |
592 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
689 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
593 | |
690 | |
594 | // loop should not be needed for brightness, as only -1..1 makes sense |
691 | // loop should not be needed for brightness, as only -1..1 makes sense |
595 | //while (r | g | b | a) |
692 | //while (r | g | b | a) |
596 | { |
693 | { |
… | |
… | |
620 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
717 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
621 | { |
718 | { |
622 | if (r < 0 || g < 0 || b < 0 || a < 0) |
719 | if (r < 0 || g < 0 || b < 0 || a < 0) |
623 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
720 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
624 | |
721 | |
625 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
|
|
626 | img->alloc (); |
|
|
627 | img->fill (rgba (0, 0, 0, 0)); |
|
|
628 | |
|
|
629 | // premultiply (yeah, these are not exact, sue me or fix it) |
722 | // premultiply (yeah, these are not exact, sue me or fix it) |
630 | r = (r * (a >> 8)) >> 8; |
723 | r = (r * (a >> 8)) >> 8; |
631 | g = (g * (a >> 8)) >> 8; |
724 | g = (g * (a >> 8)) >> 8; |
632 | b = (b * (a >> 8)) >> 8; |
725 | b = (b * (a >> 8)) >> 8; |
633 | |
726 | |
634 | Display *dpy = s->display->dpy; |
727 | composer cc (this); |
|
|
728 | rxvt_img *img = cc; |
|
|
729 | img->fill (rgba (0, 0, 0, 0)); |
635 | |
730 | |
636 | Picture src = picture (); |
731 | cc.mask (true); |
637 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
|
|
638 | Picture mul = create_xrender_mask (dpy, pm, True, True); |
|
|
639 | |
732 | |
640 | //TODO: this operator does not yet implement some useful contrast |
733 | //TODO: this operator does not yet implement some useful contrast |
641 | while (r | g | b | a) |
734 | while (r | g | b | a) |
642 | { |
735 | { |
643 | unsigned short xr, xg, xb, xa; |
736 | unsigned short xr, xg, xb, xa; |
644 | XRenderColor mask_c; |
737 | XRenderColor mask_c; |
645 | |
738 | |
646 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
739 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
647 | { |
740 | { |
648 | XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1); |
741 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &mask_c, 0, 0, 1, 1); |
649 | XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h); |
742 | XRenderComposite (cc.dpy, PictOpAdd, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
650 | } |
743 | } |
651 | } |
744 | } |
652 | |
|
|
653 | XRenderFreePicture (dpy, mul); |
|
|
654 | XRenderFreePicture (dpy, dst); |
|
|
655 | XRenderFreePicture (dpy, src); |
|
|
656 | |
745 | |
657 | ::swap (img->ref, ref); |
746 | ::swap (img->ref, ref); |
658 | ::swap (img->pm , pm ); |
747 | ::swap (img->pm , pm ); |
659 | |
748 | |
660 | delete img; |
749 | delete img; |
… | |
… | |
663 | void |
752 | void |
664 | rxvt_img::draw (rxvt_img *img, int op, nv mask) |
753 | rxvt_img::draw (rxvt_img *img, int op, nv mask) |
665 | { |
754 | { |
666 | unshare (); |
755 | unshare (); |
667 | |
756 | |
668 | Display *dpy = s->display->dpy; |
757 | composer cc (img, this); |
669 | Picture src = img->picture (); |
|
|
670 | Picture dst = picture (); |
|
|
671 | Picture mask_p = 0; |
|
|
672 | |
758 | |
673 | if (mask != 1.) |
759 | if (mask != 1.) |
674 | { |
760 | cc.mask (rgba (0, 0, 0, float_to_component (mask))); |
675 | mask_p = create_xrender_mask (dpy, img->pm, False, False); |
|
|
676 | XRenderColor mask_c = { 0, 0, 0, float_to_component (mask) }; |
|
|
677 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
678 | } |
|
|
679 | |
761 | |
680 | XRenderComposite (dpy, op, src, mask_p, dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); |
762 | XRenderComposite (cc.dpy, op, cc.src, cc.msk, cc.dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); |
681 | |
|
|
682 | XRenderFreePicture (dpy, src); |
|
|
683 | XRenderFreePicture (dpy, dst); |
|
|
684 | |
|
|
685 | if (mask_p) |
|
|
686 | XRenderFreePicture (dpy, mask_p); |
|
|
687 | } |
763 | } |
688 | |
764 | |
689 | rxvt_img * |
765 | rxvt_img * |
690 | rxvt_img::clone () |
766 | rxvt_img::clone () |
691 | { |
767 | { |
… | |
… | |
695 | rxvt_img * |
771 | rxvt_img * |
696 | rxvt_img::reify () |
772 | rxvt_img::reify () |
697 | { |
773 | { |
698 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
774 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
699 | return clone (); |
775 | return clone (); |
700 | |
|
|
701 | Display *dpy = s->display->dpy; |
|
|
702 | |
776 | |
703 | // add an alpha channel if... |
777 | // add an alpha channel if... |
704 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
778 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
705 | && (x || y) // we need one because of non-zero offset |
779 | && (x || y) // we need one because of non-zero offset |
706 | && repeat == RepeatNone; // and we have no good pixels to fill with |
780 | && repeat == RepeatNone; // and we have no good pixels to fill with |
707 | |
781 | |
708 | rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
782 | composer cc (this, new rxvt_img (d, alpha ? find_alpha_format_for (d->dpy, format) : format, |
709 | img->alloc (); |
783 | 0, 0, w, h, repeat)); |
710 | |
784 | |
711 | Picture src = picture (); |
785 | if (repeat == RepeatNone) |
712 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
713 | |
|
|
714 | if (alpha) |
|
|
715 | { |
786 | { |
716 | XRenderColor rc = { 0, 0, 0, 0 }; |
787 | XRenderColor rc = { 0, 0, 0, 0 }; |
717 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
788 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
718 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, x, y, ref->w, ref->h); |
789 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, x, y, ref->w, ref->h); |
719 | } |
790 | } |
720 | else |
791 | else |
721 | XRenderComposite (dpy, PictOpSrc, src, None, dst, -x, -y, 0, 0, 0, 0, w, h); |
792 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, -x, -y, 0, 0, 0, 0, w, h); |
722 | |
793 | |
723 | XRenderFreePicture (dpy, src); |
|
|
724 | XRenderFreePicture (dpy, dst); |
|
|
725 | |
|
|
726 | return img; |
794 | return cc; |
727 | } |
795 | } |
728 | |
796 | |
729 | rxvt_img * |
797 | rxvt_img * |
730 | rxvt_img::sub_rect (int x, int y, int width, int height) |
798 | rxvt_img::sub_rect (int x, int y, int width, int height) |
731 | { |
799 | { |
… | |
… | |
757 | rxvt_img::transform (const nv *matrix) |
825 | rxvt_img::transform (const nv *matrix) |
758 | { |
826 | { |
759 | mat3x3 m (matrix); |
827 | mat3x3 m (matrix); |
760 | |
828 | |
761 | // calculate new pixel bounding box coordinates |
829 | // calculate new pixel bounding box coordinates |
762 | nv r[2], rmin[2], rmax[2]; |
830 | nv rmin[2], rmax[2]; |
763 | |
831 | |
764 | for (int i = 0; i < 2; ++i) |
832 | for (int i = 0; i < 2; ++i) |
765 | { |
833 | { |
766 | nv v; |
834 | nv v; |
767 | |
835 | |
768 | v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; r [i] = v; |
836 | v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; |
769 | v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); |
837 | v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); |
770 | v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
838 | v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
771 | v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
839 | v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
772 | } |
840 | } |
773 | |
841 | |
… | |
… | |
779 | int ny = floor (rmin [1]); |
847 | int ny = floor (rmin [1]); |
780 | |
848 | |
781 | int new_width = ceil (rmax [0] - rmin [0]); |
849 | int new_width = ceil (rmax [0] - rmin [0]); |
782 | int new_height = ceil (rmax [1] - rmin [1]); |
850 | int new_height = ceil (rmax [1] - rmin [1]); |
783 | |
851 | |
784 | m = mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y); |
852 | mat3x3 inv = (mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y)).inverse (); |
785 | |
853 | |
786 | mat3x3 inv = m.invert (); |
854 | composer cc (this, new rxvt_img (d, format, nx, ny, new_width, new_height, repeat)); |
787 | |
|
|
788 | rxvt_img *img = new rxvt_img (s, format, nx, ny, new_width, new_height, repeat); |
|
|
789 | img->alloc (); |
|
|
790 | |
|
|
791 | Display *dpy = s->display->dpy; |
|
|
792 | Picture src = picture (); |
|
|
793 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
794 | |
855 | |
795 | XTransform xfrm; |
856 | XTransform xfrm; |
796 | |
857 | |
797 | for (int i = 0; i < 3; ++i) |
858 | for (int i = 0; i < 3; ++i) |
798 | for (int j = 0; j < 3; ++j) |
859 | for (int j = 0; j < 3; ++j) |
799 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
860 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
800 | |
861 | |
801 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
862 | XRenderSetPictureFilter (cc.dpy, cc.src, "good", 0, 0); |
802 | XRenderSetPictureTransform (dpy, src, &xfrm); |
863 | XRenderSetPictureTransform (cc.dpy, cc.src, &xfrm); |
803 | XRenderComposite (dpy, PictOpSrc, src, None, dst, sx, sy, 0, 0, 0, 0, new_width, new_height); |
864 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, sx, sy, 0, 0, 0, 0, new_width, new_height); |
804 | |
865 | |
805 | XRenderFreePicture (dpy, src); |
|
|
806 | XRenderFreePicture (dpy, dst); |
|
|
807 | |
|
|
808 | return img; |
866 | return cc; |
809 | } |
867 | } |
810 | |
868 | |
811 | rxvt_img * |
869 | rxvt_img * |
812 | rxvt_img::scale (int new_width, int new_height) |
870 | rxvt_img::scale (int new_width, int new_height) |
813 | { |
871 | { |
… | |
… | |
826 | } |
884 | } |
827 | |
885 | |
828 | rxvt_img * |
886 | rxvt_img * |
829 | rxvt_img::rotate (int cx, int cy, nv phi) |
887 | rxvt_img::rotate (int cx, int cy, nv phi) |
830 | { |
888 | { |
831 | #if 0 |
|
|
832 | { c, -s, cx - c * cx + s * cy }, |
|
|
833 | { s, c, cy - s * cx - c * cy }, |
|
|
834 | { 0, 0, 1 } |
|
|
835 | #endif |
|
|
836 | |
|
|
837 | move (-cx, -cy); |
889 | move (-cx, -cy); |
838 | rxvt_img *img = transform (mat3x3::rotate (phi)); |
890 | rxvt_img *img = transform (mat3x3::rotate (phi)); |
839 | move ( cx, cy); |
891 | move ( cx, cy); |
840 | img->move (cx, cy); |
892 | img->move (cx, cy); |
841 | |
893 | |
… | |
… | |
846 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
898 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
847 | { |
899 | { |
848 | if (new_format == format) |
900 | if (new_format == format) |
849 | return clone (); |
901 | return clone (); |
850 | |
902 | |
851 | rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); |
903 | composer cc (this, new rxvt_img (d, new_format, x, y, w, h, repeat)); |
852 | img->alloc (); |
|
|
853 | |
904 | |
854 | Display *dpy = s->display->dpy; |
|
|
855 | Picture src = picture (); |
|
|
856 | Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
|
|
857 | int op = PictOpSrc; |
905 | int op = PictOpSrc; |
858 | |
906 | |
859 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
907 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
860 | { |
908 | { |
861 | // does it have to be that complicated |
909 | // does it have to be that complicated |
862 | XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
910 | XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
863 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
911 | XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h); |
864 | |
912 | |
865 | op = PictOpOver; |
913 | op = PictOpOver; |
866 | } |
914 | } |
867 | |
915 | |
868 | XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
916 | XRenderComposite (cc.dpy, op, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
869 | |
917 | |
870 | XRenderFreePicture (dpy, src); |
918 | return cc; |
871 | XRenderFreePicture (dpy, dst); |
919 | } |
|
|
920 | |
|
|
921 | rxvt_img * |
|
|
922 | rxvt_img::tint (const rgba &c) |
|
|
923 | { |
|
|
924 | composer cc (this); |
|
|
925 | cc.mask (true); |
|
|
926 | cc.fill (c); |
|
|
927 | |
|
|
928 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
929 | |
|
|
930 | return cc; |
|
|
931 | } |
|
|
932 | |
|
|
933 | rxvt_img * |
|
|
934 | rxvt_img::shade (nv factor, rgba c) |
|
|
935 | { |
|
|
936 | clamp_it (factor, -1., 1.); |
|
|
937 | factor++; |
|
|
938 | |
|
|
939 | if (factor > 1) |
|
|
940 | { |
|
|
941 | c.r = c.r * (2 - factor); |
|
|
942 | c.g = c.g * (2 - factor); |
|
|
943 | c.b = c.b * (2 - factor); |
|
|
944 | } |
|
|
945 | else |
|
|
946 | { |
|
|
947 | c.r = c.r * factor; |
|
|
948 | c.g = c.g * factor; |
|
|
949 | c.b = c.b * factor; |
|
|
950 | } |
|
|
951 | |
|
|
952 | rxvt_img *img = this->tint (c); |
|
|
953 | |
|
|
954 | if (factor > 1) |
|
|
955 | { |
|
|
956 | c.a = 0xffff; |
|
|
957 | c.r = |
|
|
958 | c.g = |
|
|
959 | c.b = 0xffff * (factor - 1); |
|
|
960 | |
|
|
961 | img->brightness (c.r, c.g, c.b, c.a); |
|
|
962 | } |
872 | |
963 | |
873 | return img; |
964 | return img; |
874 | } |
965 | } |
875 | |
966 | |
876 | rxvt_img * |
967 | rxvt_img * |
877 | rxvt_img::blend (rxvt_img *img, nv factor) |
968 | rxvt_img::filter (const char *name, int nparams, nv *params) |
878 | { |
969 | { |
879 | rxvt_img *img2 = clone (); |
970 | composer cc (this); |
880 | Display *dpy = s->display->dpy; |
|
|
881 | Picture src = img->picture (); |
|
|
882 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
|
|
883 | Picture mask = create_xrender_mask (dpy, img->pm, False, False); |
|
|
884 | |
971 | |
885 | XRenderColor mask_c; |
972 | XFixed *xparams = rxvt_temp_buf<XFixed> (nparams); |
886 | |
973 | |
887 | mask_c.alpha = float_to_component (factor); |
974 | for (int i = 0; i < nparams; ++i) |
888 | mask_c.red = |
975 | xparams [i] = XDoubleToFixed (params [i]); |
889 | mask_c.green = |
|
|
890 | mask_c.blue = 0; |
|
|
891 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
892 | |
976 | |
|
|
977 | XRenderSetPictureFilter (cc.dpy, cc.src, name, xparams, nparams); |
|
|
978 | |
893 | XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); |
979 | XRenderComposite (cc.dpy, PictOpSrc, cc.src, 0, cc.dst, 0, 0, 0, 0, 0, 0, w, h); |
894 | |
980 | |
895 | XRenderFreePicture (dpy, src); |
|
|
896 | XRenderFreePicture (dpy, dst); |
|
|
897 | XRenderFreePicture (dpy, mask); |
|
|
898 | |
|
|
899 | return img2; |
981 | return cc; |
900 | } |
982 | } |
901 | |
983 | |
902 | #endif |
984 | #endif |
903 | |
985 | |