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/*----------------------------------------------------------------------* |
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* File: background.C - former xpm.C |
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*----------------------------------------------------------------------* |
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* |
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* All portions of code are copyright by their respective author/s. |
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* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de> |
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* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net> |
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* Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*---------------------------------------------------------------------*/ |
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|
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#include <math.h> |
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#include "../config.h" /* NECESSARY */ |
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#include "rxvt.h" /* NECESSARY */ |
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|
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#if XRENDER |
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# include <X11/extensions/Xrender.h> |
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#endif |
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|
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#ifndef FilterConvolution |
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#define FilterConvolution "convolution" |
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#endif |
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|
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#ifndef RepeatPad |
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#define RepeatPad True |
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#endif |
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|
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#ifdef HAVE_BG_PIXMAP |
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# if XRENDER |
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static Picture |
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create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha) |
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{ |
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Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
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|
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XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
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XRenderPictureAttributes pa; |
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pa.repeat = True; |
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pa.component_alpha = component_alpha; |
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Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
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|
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XFreePixmap (dpy, pixmap); |
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|
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return mask; |
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} |
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# endif |
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|
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void |
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rxvt_term::bg_destroy () |
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{ |
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#ifdef HAVE_PIXBUF |
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if (pixbuf) |
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g_object_unref (pixbuf); |
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#endif |
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|
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if (bg_pixmap) |
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XFreePixmap (dpy, bg_pixmap); |
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} |
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|
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bool |
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rxvt_term::bg_set_position (int x, int y) |
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{ |
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|
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if (target_x != x |
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|| target_y != y) |
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{ |
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target_x = x; |
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target_y = y; |
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return true; |
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} |
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return false; |
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} |
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|
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bool |
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rxvt_term::bg_window_size_sensitive () |
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{ |
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# ifdef ENABLE_TRANSPARENCY |
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if (bg_flags & BG_IS_TRANSPARENT) |
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return true; |
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# endif |
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|
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# ifdef BG_IMAGE_FROM_FILE |
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if (bg_flags & BG_IS_FROM_FILE) |
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{ |
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if (bg_flags & BG_IS_SIZE_SENSITIVE) |
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return true; |
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} |
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# endif |
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|
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return false; |
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} |
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|
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bool |
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rxvt_term::bg_window_position_sensitive () |
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{ |
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# ifdef ENABLE_TRANSPARENCY |
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if (bg_flags & BG_IS_TRANSPARENT) |
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return true; |
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# endif |
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|
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# ifdef BG_IMAGE_FROM_FILE |
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if (bg_flags & BG_IS_FROM_FILE) |
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{ |
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if (bg_flags & BG_ROOT_ALIGN) |
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return true; |
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} |
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# endif |
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|
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return false; |
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} |
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|
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# ifdef BG_IMAGE_FROM_FILE |
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static inline int |
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make_align_position (int align, int window_size, int image_size) |
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{ |
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if (align >= 0 && align <= 100) |
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return lerp (0, window_size - image_size, align); |
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else if (align > 100) |
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return lerp (window_size - image_size, window_size, align - 100); |
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else |
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return lerp (-image_size, 0, align + 100); |
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} |
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|
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static inline int |
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make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size) |
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{ |
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int src_pos = 0; |
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dst_pos = pos; |
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dst_size = size; |
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if (pos < 0) |
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{ |
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src_pos = -pos; |
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dst_pos = 0; |
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dst_size += pos; |
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} |
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|
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min_it (dst_size, target_size - dst_pos); |
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return src_pos; |
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} |
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|
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bool |
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rxvt_term::bg_set_geometry (const char *geom, bool update) |
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{ |
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bool changed = false; |
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int geom_flags = 0; |
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int x = h_align; |
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int y = v_align; |
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unsigned int w = h_scale; |
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unsigned int h = v_scale; |
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unsigned long new_flags = 0; |
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|
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if (geom == NULL) |
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return false; |
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|
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if (geom[0]) |
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{ |
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char **arr = rxvt_strsplit (':', geom); |
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|
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for (int i = 0; arr[i]; i++) |
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{ |
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if (!strcasecmp (arr[i], "style=tiled")) |
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{ |
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new_flags = BG_TILE; |
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w = h = noScale; |
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x = y = 0; |
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geom_flags = WidthValue|HeightValue|XValue|YValue; |
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} |
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else if (!strcasecmp (arr[i], "style=aspect-stretched")) |
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{ |
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new_flags = BG_KEEP_ASPECT; |
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w = h = windowScale; |
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x = y = centerAlign; |
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geom_flags = WidthValue|HeightValue|XValue|YValue; |
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} |
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else if (!strcasecmp (arr[i], "style=stretched")) |
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{ |
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new_flags = 0; |
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w = h = windowScale; |
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geom_flags = WidthValue|HeightValue; |
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} |
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else if (!strcasecmp (arr[i], "style=centered")) |
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{ |
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new_flags = 0; |
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w = h = noScale; |
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x = y = centerAlign; |
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geom_flags = WidthValue|HeightValue|XValue|YValue; |
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} |
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else if (!strcasecmp (arr[i], "style=root-tiled")) |
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{ |
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new_flags = BG_TILE|BG_ROOT_ALIGN; |
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w = h = noScale; |
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geom_flags = WidthValue|HeightValue; |
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} |
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else if (!strcasecmp (arr[i], "op=tile")) |
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new_flags |= BG_TILE; |
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else if (!strcasecmp (arr[i], "op=keep-aspect")) |
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new_flags |= BG_KEEP_ASPECT; |
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else if (!strcasecmp (arr[i], "op=root-align")) |
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new_flags |= BG_ROOT_ALIGN; |
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|
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// deprecated |
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else if (!strcasecmp (arr[i], "tile")) |
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{ |
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new_flags |= BG_TILE; |
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w = h = noScale; |
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geom_flags |= WidthValue|HeightValue; |
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} |
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else if (!strcasecmp (arr[i], "propscale")) |
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{ |
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new_flags |= BG_KEEP_ASPECT; |
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w = h = windowScale; |
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geom_flags |= WidthValue|HeightValue; |
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} |
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else if (!strcasecmp (arr[i], "hscale")) |
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{ |
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new_flags |= BG_TILE; |
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w = windowScale; |
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h = noScale; |
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geom_flags |= WidthValue|HeightValue; |
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} |
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else if (!strcasecmp (arr[i], "vscale")) |
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{ |
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new_flags |= BG_TILE; |
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h = windowScale; |
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w = noScale; |
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geom_flags |= WidthValue|HeightValue; |
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} |
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else if (!strcasecmp (arr[i], "scale")) |
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{ |
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w = h = windowScale; |
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geom_flags |= WidthValue|HeightValue; |
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} |
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else if (!strcasecmp (arr[i], "auto")) |
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{ |
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w = h = windowScale; |
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x = y = centerAlign; |
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geom_flags |= WidthValue|HeightValue|XValue|YValue; |
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} |
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else if (!strcasecmp (arr[i], "root")) |
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{ |
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new_flags |= BG_TILE|BG_ROOT_ALIGN; |
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w = h = noScale; |
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geom_flags |= WidthValue|HeightValue; |
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} |
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|
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else |
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geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h); |
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} /* done parsing ops */ |
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|
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rxvt_free_strsplit (arr); |
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} |
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|
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new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS; |
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|
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if (!update) |
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{ |
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if (!(geom_flags & XValue)) |
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x = y = defaultAlign; |
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else if (!(geom_flags & YValue)) |
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y = x; |
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|
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if (!(geom_flags & (WidthValue|HeightValue))) |
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w = h = defaultScale; |
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else if (!(geom_flags & HeightValue)) |
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h = w; |
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else if (!(geom_flags & WidthValue)) |
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w = h; |
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} |
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|
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min_it (w, 1000); |
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min_it (h, 1000); |
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clamp_it (x, -100, 200); |
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clamp_it (y, -100, 200); |
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|
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if (bg_flags != new_flags |
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|| h_scale != w |
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|| v_scale != h |
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|| h_align != x |
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|| v_align != y) |
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{ |
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bg_flags = new_flags; |
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h_scale = w; |
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v_scale = h; |
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h_align = x; |
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v_align = y; |
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changed = true; |
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} |
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|
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return changed; |
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} |
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|
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void |
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rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y) |
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{ |
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int target_width = szHint.width; |
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int target_height = szHint.height; |
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|
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w = h_scale * target_width / 100; |
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h = v_scale * target_height / 100; |
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|
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if (bg_flags & BG_KEEP_ASPECT) |
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{ |
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float scale = (float)w / image_width; |
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min_it (scale, (float)h / image_height); |
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w = image_width * scale + 0.5; |
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h = image_height * scale + 0.5; |
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} |
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|
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if (!w) w = image_width; |
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if (!h) h = image_height; |
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|
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if (bg_flags & BG_ROOT_ALIGN) |
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{ |
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x = -target_x; |
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y = -target_y; |
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} |
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else |
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{ |
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x = make_align_position (h_align, target_width, w); |
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y = make_align_position (v_align, target_height, h); |
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} |
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|
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if (!(bg_flags & BG_TILE) |
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|| h_scale || v_scale |
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|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align)) |
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|| image_width > target_width || image_height > target_height) |
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bg_flags |= BG_IS_SIZE_SENSITIVE; |
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else |
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bg_flags &= ~BG_IS_SIZE_SENSITIVE; |
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} |
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|
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# ifdef HAVE_PIXBUF |
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bool |
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rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc, |
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int src_x, int src_y, int dst_x, int dst_y, |
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unsigned int width, unsigned int height) |
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{ |
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XImage *ximage; |
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char *data, *line; |
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int bytes_per_pixel; |
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int width_r, width_g, width_b; |
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int sh_r, sh_g, sh_b; |
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int rowstride; |
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int channels; |
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unsigned char *row; |
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|
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if (visual->c_class != TrueColor) |
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return false; |
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|
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if (depth == 24 || depth == 32) |
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bytes_per_pixel = 4; |
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else if (depth == 15 || depth == 16) |
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bytes_per_pixel = 2; |
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else |
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return false; |
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|
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width_r = ecb_popcount32 (visual->red_mask); |
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width_g = ecb_popcount32 (visual->green_mask); |
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width_b = ecb_popcount32 (visual->blue_mask); |
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|
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if (width_r > 8 || width_g > 8 || width_b > 8) |
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return false; |
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|
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sh_r = ecb_ctz32 (visual->red_mask); |
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sh_g = ecb_ctz32 (visual->green_mask); |
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sh_b = ecb_ctz32 (visual->blue_mask); |
379 |
|
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if (width > INT_MAX / height / bytes_per_pixel) |
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return false; |
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|
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data = (char *)malloc (width * height * bytes_per_pixel); |
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if (!data) |
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return false; |
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|
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ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data, |
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width, height, bytes_per_pixel * 8, 0); |
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if (!ximage) |
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{ |
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free (data); |
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return false; |
393 |
} |
394 |
|
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ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
396 |
|
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rowstride = gdk_pixbuf_get_rowstride (pixbuf); |
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channels = gdk_pixbuf_get_n_channels (pixbuf); |
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row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels; |
400 |
line = data; |
401 |
|
402 |
for (int y = 0; y < height; y++) |
403 |
{ |
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for (int x = 0; x < width; x++) |
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{ |
406 |
unsigned char *pixel = row + x * channels; |
407 |
uint32_t value; |
408 |
|
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value = ((pixel[0] >> (8 - width_r)) << sh_r) |
410 |
| ((pixel[1] >> (8 - width_g)) << sh_g) |
411 |
| ((pixel[2] >> (8 - width_b)) << sh_b); |
412 |
|
413 |
if (bytes_per_pixel == 4) |
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((uint32_t *)line)[x] = value; |
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else |
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((uint16_t *)line)[x] = value; |
417 |
} |
418 |
|
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row += rowstride; |
420 |
line += ximage->bytes_per_line; |
421 |
} |
422 |
|
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XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height); |
424 |
XDestroyImage (ximage); |
425 |
return true; |
426 |
} |
427 |
|
428 |
bool |
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rxvt_term::render_image (bool transparent) |
430 |
{ |
431 |
if (!pixbuf) |
432 |
return false; |
433 |
|
434 |
if (transparent |
435 |
&& !(bg_flags & BG_HAS_RENDER)) |
436 |
return false; |
437 |
|
438 |
GdkPixbuf *result; |
439 |
|
440 |
int image_width = gdk_pixbuf_get_width (pixbuf); |
441 |
int image_height = gdk_pixbuf_get_height (pixbuf); |
442 |
|
443 |
int target_width = szHint.width; |
444 |
int target_height = szHint.height; |
445 |
int new_pmap_width = target_width; |
446 |
int new_pmap_height = target_height; |
447 |
|
448 |
int x = 0; |
449 |
int y = 0; |
450 |
int w = 0; |
451 |
int h = 0; |
452 |
|
453 |
get_image_geometry (image_width, image_height, w, h, x, y); |
454 |
|
455 |
if (!(bg_flags & BG_ROOT_ALIGN) |
456 |
&& (x >= target_width |
457 |
|| y >= target_height |
458 |
|| x + w <= 0 |
459 |
|| y + h <= 0)) |
460 |
return false; |
461 |
|
462 |
result = pixbuf; |
463 |
|
464 |
if (w != image_width |
465 |
|| h != image_height) |
466 |
{ |
467 |
result = gdk_pixbuf_scale_simple (pixbuf, |
468 |
w, h, |
469 |
GDK_INTERP_BILINEAR); |
470 |
} |
471 |
|
472 |
if (!result) |
473 |
return false; |
474 |
|
475 |
bool ret = false; |
476 |
|
477 |
XGCValues gcv; |
478 |
GC gc; |
479 |
Pixmap root_pmap; |
480 |
|
481 |
image_width = gdk_pixbuf_get_width (result); |
482 |
image_height = gdk_pixbuf_get_height (result); |
483 |
|
484 |
if (transparent) |
485 |
{ |
486 |
root_pmap = bg_pixmap; |
487 |
bg_pixmap = None; |
488 |
} |
489 |
else |
490 |
{ |
491 |
if (bg_flags & BG_TILE) |
492 |
{ |
493 |
new_pmap_width = min (image_width, target_width); |
494 |
new_pmap_height = min (image_height, target_height); |
495 |
} |
496 |
} |
497 |
|
498 |
if (bg_pixmap == None |
499 |
|| bg_pmap_width != new_pmap_width |
500 |
|| bg_pmap_height != new_pmap_height) |
501 |
{ |
502 |
if (bg_pixmap) |
503 |
XFreePixmap (dpy, bg_pixmap); |
504 |
bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth); |
505 |
bg_pmap_width = new_pmap_width; |
506 |
bg_pmap_height = new_pmap_height; |
507 |
} |
508 |
|
509 |
gcv.foreground = pix_colors[Color_bg]; |
510 |
gc = XCreateGC (dpy, vt, GCForeground, &gcv); |
511 |
|
512 |
if (gc) |
513 |
{ |
514 |
if (bg_flags & BG_TILE) |
515 |
{ |
516 |
Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth); |
517 |
pixbuf_to_pixmap (result, tile, gc, |
518 |
0, 0, |
519 |
0, 0, |
520 |
image_width, image_height); |
521 |
|
522 |
gcv.tile = tile; |
523 |
gcv.fill_style = FillTiled; |
524 |
gcv.ts_x_origin = x; |
525 |
gcv.ts_y_origin = y; |
526 |
XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv); |
527 |
|
528 |
XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height); |
529 |
XFreePixmap (dpy, tile); |
530 |
} |
531 |
else |
532 |
{ |
533 |
int src_x, src_y, dst_x, dst_y; |
534 |
int dst_width, dst_height; |
535 |
|
536 |
src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width ); |
537 |
src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height); |
538 |
|
539 |
if (dst_x > 0 || dst_y > 0 |
540 |
|| dst_x + dst_width < new_pmap_width |
541 |
|| dst_y + dst_height < new_pmap_height) |
542 |
XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height); |
543 |
|
544 |
if (dst_x < new_pmap_width && dst_y < new_pmap_height) |
545 |
pixbuf_to_pixmap (result, bg_pixmap, gc, |
546 |
src_x, src_y, |
547 |
dst_x, dst_y, |
548 |
dst_width, dst_height); |
549 |
} |
550 |
|
551 |
#if XRENDER |
552 |
if (transparent) |
553 |
{ |
554 |
XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); |
555 |
|
556 |
Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0); |
557 |
|
558 |
Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0); |
559 |
|
560 |
Picture mask = create_xrender_mask (dpy, vt, False, False); |
561 |
|
562 |
XRenderColor mask_c; |
563 |
|
564 |
mask_c.alpha = 0x8000; |
565 |
mask_c.red = |
566 |
mask_c.green = |
567 |
mask_c.blue = 0; |
568 |
XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
569 |
|
570 |
XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height); |
571 |
|
572 |
XRenderFreePicture (dpy, src); |
573 |
XRenderFreePicture (dpy, dst); |
574 |
XRenderFreePicture (dpy, mask); |
575 |
} |
576 |
#endif |
577 |
|
578 |
XFreeGC (dpy, gc); |
579 |
|
580 |
ret = true; |
581 |
} |
582 |
|
583 |
if (result != pixbuf) |
584 |
g_object_unref (result); |
585 |
|
586 |
if (transparent) |
587 |
XFreePixmap (dpy, root_pmap); |
588 |
|
589 |
return ret; |
590 |
} |
591 |
# endif /* HAVE_PIXBUF */ |
592 |
|
593 |
bool |
594 |
rxvt_term::bg_set_file (const char *file) |
595 |
{ |
596 |
if (!file || !*file) |
597 |
return false; |
598 |
|
599 |
bool ret = false; |
600 |
const char *p = strchr (file, ';'); |
601 |
|
602 |
if (p) |
603 |
{ |
604 |
size_t len = p - file; |
605 |
char *f = rxvt_temp_buf<char> (len + 1); |
606 |
memcpy (f, file, len); |
607 |
f[len] = '\0'; |
608 |
file = f; |
609 |
} |
610 |
|
611 |
# ifdef HAVE_PIXBUF |
612 |
GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL); |
613 |
if (image) |
614 |
{ |
615 |
if (pixbuf) |
616 |
g_object_unref (pixbuf); |
617 |
pixbuf = image; |
618 |
bg_flags |= BG_IS_FROM_FILE; |
619 |
ret = true; |
620 |
} |
621 |
# endif |
622 |
|
623 |
if (ret) |
624 |
{ |
625 |
if (p) |
626 |
bg_set_geometry (p + 1); |
627 |
else |
628 |
bg_set_default_geometry (); |
629 |
} |
630 |
|
631 |
return ret; |
632 |
} |
633 |
|
634 |
# endif /* BG_IMAGE_FROM_FILE */ |
635 |
|
636 |
# ifdef ENABLE_TRANSPARENCY |
637 |
bool |
638 |
rxvt_term::bg_set_transparent () |
639 |
{ |
640 |
if (!(bg_flags & BG_IS_TRANSPARENT)) |
641 |
{ |
642 |
bg_flags |= BG_IS_TRANSPARENT; |
643 |
return true; |
644 |
} |
645 |
|
646 |
return false; |
647 |
} |
648 |
|
649 |
bool |
650 |
rxvt_term::bg_set_blur (const char *geom) |
651 |
{ |
652 |
bool changed = false; |
653 |
unsigned int hr, vr; |
654 |
int junk; |
655 |
int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr); |
656 |
|
657 |
if (!(geom_flags & WidthValue)) |
658 |
hr = 1; |
659 |
if (!(geom_flags & HeightValue)) |
660 |
vr = hr; |
661 |
|
662 |
min_it (hr, 128); |
663 |
min_it (vr, 128); |
664 |
|
665 |
if (h_blurRadius != hr) |
666 |
{ |
667 |
changed = true; |
668 |
h_blurRadius = hr; |
669 |
} |
670 |
|
671 |
if (v_blurRadius != vr) |
672 |
{ |
673 |
changed = true; |
674 |
v_blurRadius = vr; |
675 |
} |
676 |
|
677 |
if (h_blurRadius && v_blurRadius) |
678 |
bg_flags |= BG_NEEDS_BLUR; |
679 |
else |
680 |
bg_flags &= ~BG_NEEDS_BLUR; |
681 |
|
682 |
return changed; |
683 |
} |
684 |
|
685 |
void |
686 |
rxvt_term::set_tint_shade_flags () |
687 |
{ |
688 |
if (shade != 100 || (bg_flags & BG_TINT_SET)) |
689 |
bg_flags |= BG_NEEDS_TINT; |
690 |
else |
691 |
bg_flags &= ~BG_NEEDS_TINT; |
692 |
} |
693 |
|
694 |
bool |
695 |
rxvt_term::bg_set_tint (rxvt_color &new_tint) |
696 |
{ |
697 |
if (!(bg_flags & BG_TINT_SET) || tint != new_tint) |
698 |
{ |
699 |
tint = new_tint; |
700 |
bg_flags |= BG_TINT_SET; |
701 |
|
702 |
rgba c; |
703 |
tint.get (c); |
704 |
if ((c.r <= 0x00ff || c.r >= 0xff00) |
705 |
&& (c.g <= 0x00ff || c.g >= 0xff00) |
706 |
&& (c.b <= 0x00ff || c.b >= 0xff00)) |
707 |
bg_flags |= BG_TINT_BITAND; |
708 |
else |
709 |
bg_flags &= ~BG_TINT_BITAND; |
710 |
|
711 |
set_tint_shade_flags (); |
712 |
return true; |
713 |
} |
714 |
|
715 |
return false; |
716 |
} |
717 |
|
718 |
bool |
719 |
rxvt_term::bg_set_shade (const char *shade_str) |
720 |
{ |
721 |
int new_shade = atoi (shade_str); |
722 |
|
723 |
clamp_it (new_shade, -100, 200); |
724 |
if (new_shade < 0) |
725 |
new_shade = 200 - (100 + new_shade); |
726 |
|
727 |
if (new_shade != shade) |
728 |
{ |
729 |
shade = new_shade; |
730 |
set_tint_shade_flags (); |
731 |
return true; |
732 |
} |
733 |
|
734 |
return false; |
735 |
} |
736 |
|
737 |
#if XRENDER |
738 |
static void |
739 |
get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
740 |
{ |
741 |
double sigma = radius / 2.0; |
742 |
double scale = sqrt (2.0 * M_PI) * sigma; |
743 |
double sum = 0.0; |
744 |
|
745 |
for (int i = 0; i < width; i++) |
746 |
{ |
747 |
double x = i - width / 2; |
748 |
kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
749 |
sum += kernel[i]; |
750 |
} |
751 |
|
752 |
params[0] = XDoubleToFixed (width); |
753 |
params[1] = XDoubleToFixed (1); |
754 |
|
755 |
for (int i = 0; i < width; i++) |
756 |
params[i+2] = XDoubleToFixed (kernel[i] / sum); |
757 |
} |
758 |
#endif |
759 |
|
760 |
bool |
761 |
rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height, int depth) |
762 |
{ |
763 |
bool ret = false; |
764 |
#if XRENDER |
765 |
if (!(bg_flags & BG_HAS_RENDER_CONV)) |
766 |
return false; |
767 |
|
768 |
int size = max (h_blurRadius, v_blurRadius) * 2 + 1; |
769 |
double *kernel = (double *)malloc (size * sizeof (double)); |
770 |
XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
771 |
|
772 |
XRenderPictureAttributes pa; |
773 |
XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); |
774 |
|
775 |
pa.repeat = RepeatPad; |
776 |
Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); |
777 |
Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth); |
778 |
Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa); |
779 |
XFreePixmap (dpy, tmp); |
780 |
|
781 |
if (kernel && params) |
782 |
{ |
783 |
size = h_blurRadius * 2 + 1; |
784 |
get_gaussian_kernel (h_blurRadius, size, kernel, params); |
785 |
|
786 |
XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
787 |
XRenderComposite (dpy, |
788 |
PictOpSrc, |
789 |
src, |
790 |
None, |
791 |
dst, |
792 |
0, 0, |
793 |
0, 0, |
794 |
0, 0, |
795 |
width, height); |
796 |
|
797 |
::swap (src, dst); |
798 |
|
799 |
size = v_blurRadius * 2 + 1; |
800 |
get_gaussian_kernel (v_blurRadius, size, kernel, params); |
801 |
::swap (params[0], params[1]); |
802 |
|
803 |
XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
804 |
XRenderComposite (dpy, |
805 |
PictOpSrc, |
806 |
src, |
807 |
None, |
808 |
dst, |
809 |
0, 0, |
810 |
0, 0, |
811 |
0, 0, |
812 |
width, height); |
813 |
|
814 |
ret = true; |
815 |
} |
816 |
|
817 |
free (kernel); |
818 |
free (params); |
819 |
XRenderFreePicture (dpy, src); |
820 |
XRenderFreePicture (dpy, dst); |
821 |
#endif |
822 |
return ret; |
823 |
} |
824 |
|
825 |
bool |
826 |
rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height) |
827 |
{ |
828 |
bool ret = false; |
829 |
|
830 |
if (shade == 100 && (bg_flags & BG_TINT_BITAND)) |
831 |
{ |
832 |
XGCValues gcv; |
833 |
GC gc; |
834 |
|
835 |
/* In this case we can tint image server-side getting significant |
836 |
* performance improvements, as we eliminate XImage transfer |
837 |
*/ |
838 |
gcv.foreground = Pixel (tint); |
839 |
gcv.function = GXand; |
840 |
gcv.fill_style = FillSolid; |
841 |
gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv); |
842 |
if (gc) |
843 |
{ |
844 |
XFillRectangle (dpy, pixmap, gc, 0, 0, width, height); |
845 |
ret = true; |
846 |
XFreeGC (dpy, gc); |
847 |
} |
848 |
} |
849 |
# if XRENDER |
850 |
else if (bg_flags & BG_HAS_RENDER) |
851 |
{ |
852 |
rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); |
853 |
|
854 |
if (bg_flags & BG_TINT_SET) |
855 |
tint.get (c); |
856 |
|
857 |
if (shade <= 100) |
858 |
{ |
859 |
c.r = c.r * shade / 100; |
860 |
c.g = c.g * shade / 100; |
861 |
c.b = c.b * shade / 100; |
862 |
} |
863 |
else |
864 |
{ |
865 |
c.r = c.r * (200 - shade) / 100; |
866 |
c.g = c.g * (200 - shade) / 100; |
867 |
c.b = c.b * (200 - shade) / 100; |
868 |
} |
869 |
|
870 |
XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); |
871 |
|
872 |
Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0); |
873 |
|
874 |
Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False); |
875 |
|
876 |
Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True); |
877 |
|
878 |
XRenderColor mask_c; |
879 |
|
880 |
mask_c.alpha = 0xffff; |
881 |
mask_c.red = |
882 |
mask_c.green = |
883 |
mask_c.blue = 0; |
884 |
XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1); |
885 |
|
886 |
mask_c.alpha = 0; |
887 |
mask_c.red = 0xffff - c.r; |
888 |
mask_c.green = 0xffff - c.g; |
889 |
mask_c.blue = 0xffff - c.b; |
890 |
XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1); |
891 |
|
892 |
XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height); |
893 |
|
894 |
if (shade > 100) |
895 |
{ |
896 |
mask_c.alpha = 0; |
897 |
mask_c.red = |
898 |
mask_c.green = |
899 |
mask_c.blue = 0xffff * (shade - 100) / 100; |
900 |
XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1); |
901 |
|
902 |
XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height); |
903 |
} |
904 |
|
905 |
ret = true; |
906 |
|
907 |
XRenderFreePicture (dpy, mask_pic); |
908 |
XRenderFreePicture (dpy, overlay_pic); |
909 |
XRenderFreePicture (dpy, back_pic); |
910 |
} |
911 |
# endif |
912 |
|
913 |
return ret; |
914 |
} |
915 |
|
916 |
/* |
917 |
* Builds a pixmap of the same size as the terminal window that contains |
918 |
* the tiled portion of the root pixmap that is supposed to be covered by |
919 |
* our window. |
920 |
*/ |
921 |
bool |
922 |
rxvt_term::make_transparency_pixmap () |
923 |
{ |
924 |
bool ret = false; |
925 |
|
926 |
/* root dimensions may change from call to call - but Display structure should |
927 |
* be always up-to-date, so let's use it : |
928 |
*/ |
929 |
int screen = display->screen; |
930 |
int root_depth = DefaultDepth (dpy, screen); |
931 |
int root_width = DisplayWidth (dpy, screen); |
932 |
int root_height = DisplayHeight (dpy, screen); |
933 |
unsigned int root_pmap_width, root_pmap_height; |
934 |
int window_width = szHint.width; |
935 |
int window_height = szHint.height; |
936 |
int sx, sy; |
937 |
XGCValues gcv; |
938 |
GC gc; |
939 |
|
940 |
sx = target_x; |
941 |
sy = target_y; |
942 |
|
943 |
/* check if we are outside of the visible part of the virtual screen : */ |
944 |
if (sx + window_width <= 0 || sy + window_height <= 0 |
945 |
|| sx >= root_width || sy >= root_height) |
946 |
return 0; |
947 |
|
948 |
// validate root pixmap and get its size |
949 |
if (root_pixmap != None) |
950 |
{ |
951 |
Window wdummy; |
952 |
int idummy; |
953 |
unsigned int udummy; |
954 |
|
955 |
allowedxerror = -1; |
956 |
|
957 |
if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy)) |
958 |
root_pixmap = None; |
959 |
|
960 |
allowedxerror = 0; |
961 |
} |
962 |
|
963 |
Pixmap recoded_root_pmap = root_pixmap; |
964 |
|
965 |
if (root_pixmap != None && root_depth != depth) |
966 |
{ |
967 |
#if XRENDER |
968 |
if (bg_flags & BG_HAS_RENDER) |
969 |
{ |
970 |
recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth); |
971 |
|
972 |
XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen)); |
973 |
Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0); |
974 |
|
975 |
XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual); |
976 |
Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0); |
977 |
|
978 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height); |
979 |
|
980 |
XRenderFreePicture (dpy, src); |
981 |
XRenderFreePicture (dpy, dst); |
982 |
} |
983 |
else |
984 |
#endif |
985 |
recoded_root_pmap = None; |
986 |
} |
987 |
|
988 |
if (recoded_root_pmap == None) |
989 |
return 0; |
990 |
|
991 |
if (bg_pixmap == None |
992 |
|| bg_pmap_width != window_width |
993 |
|| bg_pmap_height != window_height) |
994 |
{ |
995 |
if (bg_pixmap) |
996 |
XFreePixmap (dpy, bg_pixmap); |
997 |
bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth); |
998 |
bg_pmap_width = window_width; |
999 |
bg_pmap_height = window_height; |
1000 |
} |
1001 |
|
1002 |
/* straightforward pixmap copy */ |
1003 |
while (sx < 0) sx += root_pmap_width; |
1004 |
while (sy < 0) sy += root_pmap_height; |
1005 |
|
1006 |
gcv.tile = recoded_root_pmap; |
1007 |
gcv.fill_style = FillTiled; |
1008 |
gcv.ts_x_origin = -sx; |
1009 |
gcv.ts_y_origin = -sy; |
1010 |
gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv); |
1011 |
|
1012 |
if (gc) |
1013 |
{ |
1014 |
XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height); |
1015 |
ret = true; |
1016 |
unsigned long tr_flags = bg_flags & BG_EFFECTS_FLAGS; |
1017 |
|
1018 |
if (!(bg_flags & BG_CLIENT_RENDER)) |
1019 |
{ |
1020 |
if (bg_flags & BG_NEEDS_BLUR) |
1021 |
{ |
1022 |
if (blur_pixmap (bg_pixmap, visual, window_width, window_height, depth)) |
1023 |
tr_flags &= ~BG_NEEDS_BLUR; |
1024 |
} |
1025 |
if (bg_flags & BG_NEEDS_TINT) |
1026 |
{ |
1027 |
if (tint_pixmap (bg_pixmap, visual, window_width, window_height)) |
1028 |
tr_flags &= ~BG_NEEDS_TINT; |
1029 |
} |
1030 |
if (tr_flags & BG_NEEDS_TINT) |
1031 |
{ |
1032 |
XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap); |
1033 |
if (ximage) |
1034 |
{ |
1035 |
/* our own client-side tinting */ |
1036 |
tint_ximage (DefaultVisual (dpy, display->screen), ximage); |
1037 |
|
1038 |
XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height); |
1039 |
XDestroyImage (ximage); |
1040 |
} |
1041 |
} |
1042 |
} /* server side rendering completed */ |
1043 |
|
1044 |
XFreeGC (dpy, gc); |
1045 |
} |
1046 |
|
1047 |
if (recoded_root_pmap != root_pixmap) |
1048 |
XFreePixmap (dpy, recoded_root_pmap); |
1049 |
|
1050 |
return ret; |
1051 |
} |
1052 |
|
1053 |
void |
1054 |
rxvt_term::bg_set_root_pixmap () |
1055 |
{ |
1056 |
Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]); |
1057 |
if (new_root_pixmap == None) |
1058 |
new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]); |
1059 |
|
1060 |
root_pixmap = new_root_pixmap; |
1061 |
} |
1062 |
# endif /* ENABLE_TRANSPARENCY */ |
1063 |
|
1064 |
bool |
1065 |
rxvt_term::bg_render () |
1066 |
{ |
1067 |
bool transparent = false; |
1068 |
|
1069 |
bg_invalidate (); |
1070 |
# ifdef ENABLE_TRANSPARENCY |
1071 |
if (bg_flags & BG_IS_TRANSPARENT) |
1072 |
{ |
1073 |
/* we need to re-generate transparency pixmap in that case ! */ |
1074 |
transparent = make_transparency_pixmap (); |
1075 |
if (transparent) |
1076 |
bg_flags |= BG_IS_VALID; |
1077 |
} |
1078 |
# endif |
1079 |
|
1080 |
# ifdef BG_IMAGE_FROM_FILE |
1081 |
if (bg_flags & BG_IS_FROM_FILE) |
1082 |
{ |
1083 |
if (render_image (transparent)) |
1084 |
bg_flags |= BG_IS_VALID; |
1085 |
} |
1086 |
# endif |
1087 |
|
1088 |
if (!(bg_flags & BG_IS_VALID)) |
1089 |
{ |
1090 |
if (bg_pixmap != None) |
1091 |
{ |
1092 |
XFreePixmap (dpy, bg_pixmap); |
1093 |
bg_pixmap = None; |
1094 |
} |
1095 |
} |
1096 |
|
1097 |
scr_recolour (false); |
1098 |
bg_flags |= BG_NEEDS_REFRESH; |
1099 |
|
1100 |
bg_valid_since = ev::now (); |
1101 |
|
1102 |
return true; |
1103 |
} |
1104 |
|
1105 |
void |
1106 |
rxvt_term::bg_init () |
1107 |
{ |
1108 |
#ifdef ENABLE_TRANSPARENCY |
1109 |
shade = 100; |
1110 |
#endif |
1111 |
|
1112 |
bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV); |
1113 |
#if XRENDER |
1114 |
int major, minor; |
1115 |
if (XRenderQueryVersion (dpy, &major, &minor)) |
1116 |
bg_flags |= BG_HAS_RENDER; |
1117 |
XFilters *filters = XRenderQueryFilters (dpy, vt); |
1118 |
if (filters) |
1119 |
{ |
1120 |
for (int i = 0; i < filters->nfilter; i++) |
1121 |
if (!strcmp (filters->filter[i], FilterConvolution)) |
1122 |
bg_flags |= BG_HAS_RENDER_CONV; |
1123 |
|
1124 |
XFree (filters); |
1125 |
} |
1126 |
#endif |
1127 |
} |
1128 |
|
1129 |
#endif /* HAVE_BG_PIXMAP */ |
1130 |
|
1131 |
#ifdef ENABLE_TRANSPARENCY |
1132 |
/* based on code from aterm-0.4.2 */ |
1133 |
|
1134 |
static inline void |
1135 |
fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high) |
1136 |
{ |
1137 |
for (int i = 0; i <= mask >> sh; i++) |
1138 |
{ |
1139 |
uint32_t tmp; |
1140 |
tmp = i * high; |
1141 |
tmp += (mask >> sh) * low; |
1142 |
lookup[i] = (tmp / 0xffff) << sh; |
1143 |
} |
1144 |
} |
1145 |
|
1146 |
void |
1147 |
rxvt_term::tint_ximage (Visual *visual, XImage *ximage) |
1148 |
{ |
1149 |
int sh_r, sh_g, sh_b; |
1150 |
uint32_t mask_r, mask_g, mask_b; |
1151 |
uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b; |
1152 |
unsigned short low; |
1153 |
int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
1154 |
|
1155 |
if (visual->c_class != TrueColor || ximage->format != ZPixmap) return; |
1156 |
|
1157 |
/* for convenience */ |
1158 |
mask_r = visual->red_mask; |
1159 |
mask_g = visual->green_mask; |
1160 |
mask_b = visual->blue_mask; |
1161 |
|
1162 |
/* boring lookup table pre-initialization */ |
1163 |
switch (ximage->depth) |
1164 |
{ |
1165 |
case 15: |
1166 |
if ((mask_r != 0x7c00) || |
1167 |
(mask_g != 0x03e0) || |
1168 |
(mask_b != 0x001f)) |
1169 |
return; |
1170 |
lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32)); |
1171 |
lookup_r = lookup; |
1172 |
lookup_g = lookup+32; |
1173 |
lookup_b = lookup+32+32; |
1174 |
sh_r = 10; |
1175 |
sh_g = 5; |
1176 |
sh_b = 0; |
1177 |
break; |
1178 |
case 16: |
1179 |
if ((mask_r != 0xf800) || |
1180 |
(mask_g != 0x07e0) || |
1181 |
(mask_b != 0x001f)) |
1182 |
return; |
1183 |
lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32)); |
1184 |
lookup_r = lookup; |
1185 |
lookup_g = lookup+32; |
1186 |
lookup_b = lookup+32+64; |
1187 |
sh_r = 11; |
1188 |
sh_g = 5; |
1189 |
sh_b = 0; |
1190 |
break; |
1191 |
case 24: |
1192 |
if ((mask_r != 0xff0000) || |
1193 |
(mask_g != 0x00ff00) || |
1194 |
(mask_b != 0x0000ff)) |
1195 |
return; |
1196 |
lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256)); |
1197 |
lookup_r = lookup; |
1198 |
lookup_g = lookup+256; |
1199 |
lookup_b = lookup+256+256; |
1200 |
sh_r = 16; |
1201 |
sh_g = 8; |
1202 |
sh_b = 0; |
1203 |
break; |
1204 |
case 32: |
1205 |
if ((mask_r != 0xff0000) || |
1206 |
(mask_g != 0x00ff00) || |
1207 |
(mask_b != 0x0000ff)) |
1208 |
return; |
1209 |
lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256)); |
1210 |
lookup_r = lookup; |
1211 |
lookup_g = lookup+256; |
1212 |
lookup_b = lookup+256+256; |
1213 |
sh_r = 16; |
1214 |
sh_g = 8; |
1215 |
sh_b = 0; |
1216 |
break; |
1217 |
default: |
1218 |
return; /* we do not support this color depth */ |
1219 |
} |
1220 |
|
1221 |
rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); |
1222 |
|
1223 |
if (bg_flags & BG_TINT_SET) |
1224 |
tint.get (c); |
1225 |
|
1226 |
/* prepare limits for color transformation (each channel is handled separately) */ |
1227 |
if (shade > 100) |
1228 |
{ |
1229 |
c.r = c.r * (200 - shade) / 100; |
1230 |
c.g = c.g * (200 - shade) / 100; |
1231 |
c.b = c.b * (200 - shade) / 100; |
1232 |
|
1233 |
low = 0xffff * (shade - 100) / 100; |
1234 |
} |
1235 |
else |
1236 |
{ |
1237 |
c.r = c.r * shade / 100; |
1238 |
c.g = c.g * shade / 100; |
1239 |
c.b = c.b * shade / 100; |
1240 |
|
1241 |
low = 0; |
1242 |
} |
1243 |
|
1244 |
/* fill our lookup tables */ |
1245 |
fill_lut (lookup_r, mask_r, sh_r, low, c.r); |
1246 |
fill_lut (lookup_g, mask_g, sh_g, low, c.g); |
1247 |
fill_lut (lookup_b, mask_b, sh_b, low, c.b); |
1248 |
|
1249 |
/* apply table to input image (replacing colors by newly calculated ones) */ |
1250 |
if (ximage->bits_per_pixel == 32 |
1251 |
&& (ximage->depth == 24 || ximage->depth == 32) |
1252 |
&& ximage->byte_order == host_byte_order) |
1253 |
{ |
1254 |
uint32_t *p1, *pf, *p, *pl; |
1255 |
p1 = (uint32_t *) ximage->data; |
1256 |
pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line); |
1257 |
|
1258 |
while (p1 < pf) |
1259 |
{ |
1260 |
p = p1; |
1261 |
pl = p1 + ximage->width; |
1262 |
for (; p < pl; p++) |
1263 |
{ |
1264 |
*p = lookup_r[(*p & 0xff0000) >> 16] | |
1265 |
lookup_g[(*p & 0x00ff00) >> 8] | |
1266 |
lookup_b[(*p & 0x0000ff)] | |
1267 |
(*p & 0xff000000); |
1268 |
} |
1269 |
p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line); |
1270 |
} |
1271 |
} |
1272 |
else |
1273 |
{ |
1274 |
for (int y = 0; y < ximage->height; y++) |
1275 |
for (int x = 0; x < ximage->width; x++) |
1276 |
{ |
1277 |
unsigned long pixel = XGetPixel (ximage, x, y); |
1278 |
pixel = lookup_r[(pixel & mask_r) >> sh_r] | |
1279 |
lookup_g[(pixel & mask_g) >> sh_g] | |
1280 |
lookup_b[(pixel & mask_b) >> sh_b]; |
1281 |
XPutPixel (ximage, x, y, pixel); |
1282 |
} |
1283 |
} |
1284 |
|
1285 |
free (lookup); |
1286 |
} |
1287 |
#endif /* ENABLE_TRANSPARENCY */ |