src/util/common.c (raw)
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/************************************************************************** * * Tint2 : common windows function * * Copyright (C) 2007 Pål Staurland (staura@gmail.com) * Modified (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr) from Omega distribution * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. **************************************************************************/ #include <X11/Xlib.h> #include <X11/Xutil.h> #include <X11/Xatom.h> #include <X11/extensions/Xrender.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include "common.h" #include "../server.h" void copy_file(const char *pathSrc, const char *pathDest) { FILE *fileSrc, *fileDest; char line[100]; int nb; fileSrc = fopen(pathSrc, "rb"); if (fileSrc == NULL) return; fileDest = fopen(pathDest, "wb"); if (fileDest == NULL) return; while ((nb = fread(line, 1, 100, fileSrc)) > 0) if ( nb != fwrite(line, 1, nb, fileDest)) printf("Error while copying file %s to %s\n", pathSrc, pathDest); fclose (fileDest); fclose (fileSrc); } int parse_line (const char *line, char **key, char **value) { char *a, *b; /* Skip useless lines */ if ((line[0] == '#') || (line[0] == '\n')) return 0; if (!(a = strchr (line, '='))) return 0; /* overwrite '=' with '\0' */ a[0] = '\0'; *key = strdup (line); a++; /* overwrite '\n' with '\0' if '\n' present */ if ((b = strchr (a, '\n'))) b[0] = '\0'; *value = strdup (a); g_strstrip(*key); g_strstrip(*value); return 1; } void tint_exec(const char *command) { if (command) { pid_t pid; pid = fork(); if (pid == 0) { // change for the fork the signal mask // sigset_t sigset; // sigprocmask(SIG_SETMASK, &sigset, 0); // sigprocmask(SIG_UNBLOCK, &sigset, 0); execl("/bin/sh", "/bin/sh", "-c", command, NULL); _exit(0); } } } int hex_char_to_int (char c) { int r; if (c >= '0' && c <= '9') r = c - '0'; else if (c >= 'a' && c <= 'f') r = c - 'a' + 10; else if (c >= 'A' && c <= 'F') r = c - 'A' + 10; else r = 0; return r; } int hex_to_rgb (char *hex, int *r, int *g, int *b) { int len; if (hex == NULL || hex[0] != '#') return (0); len = strlen (hex); if (len == 3 + 1) { *r = hex_char_to_int (hex[1]); *g = hex_char_to_int (hex[2]); *b = hex_char_to_int (hex[3]); } else if (len == 6 + 1) { *r = hex_char_to_int (hex[1]) * 16 + hex_char_to_int (hex[2]); *g = hex_char_to_int (hex[3]) * 16 + hex_char_to_int (hex[4]); *b = hex_char_to_int (hex[5]) * 16 + hex_char_to_int (hex[6]); } else if (len == 12 + 1) { *r = hex_char_to_int (hex[1]) * 16 + hex_char_to_int (hex[2]); *g = hex_char_to_int (hex[5]) * 16 + hex_char_to_int (hex[6]); *b = hex_char_to_int (hex[9]) * 16 + hex_char_to_int (hex[10]); } else return 0; return 1; } void get_color (char *hex, double *rgb) { int r, g, b; hex_to_rgb (hex, &r, &g, &b); rgb[0] = (r / 255.0); rgb[1] = (g / 255.0); rgb[2] = (b / 255.0); } void adjust_asb(DATA32 *data, int w, int h, int alpha, float satur, float bright) { unsigned int x, y; unsigned int a, r, g, b, argb; unsigned long id; int cmax, cmin; float h2, f, p, q, t; float hue, saturation, brightness; float redc, greenc, bluec; for(y = 0; y < h; y++) { for(id = y * w, x = 0; x < w; x++, id++) { argb = data[id]; a = (argb >> 24) & 0xff; // transparent => nothing to do. if (a == 0) continue; r = (argb >> 16) & 0xff; g = (argb >> 8) & 0xff; b = (argb) & 0xff; // convert RGB to HSB cmax = (r > g) ? r : g; if (b > cmax) cmax = b; cmin = (r < g) ? r : g; if (b < cmin) cmin = b; brightness = ((float)cmax) / 255.0f; if (cmax != 0) saturation = ((float)(cmax - cmin)) / ((float)cmax); else saturation = 0; if (saturation == 0) hue = 0; else { redc = ((float)(cmax - r)) / ((float)(cmax - cmin)); greenc = ((float)(cmax - g)) / ((float)(cmax - cmin)); bluec = ((float)(cmax - b)) / ((float)(cmax - cmin)); if (r == cmax) hue = bluec - greenc; else if (g == cmax) hue = 2.0f + redc - bluec; else hue = 4.0f + greenc - redc; hue = hue / 6.0f; if (hue < 0) hue = hue + 1.0f; } // adjust saturation += satur; if (saturation < 0.0) saturation = 0.0; if (saturation > 1.0) saturation = 1.0; brightness += bright; if (brightness < 0.0) brightness = 0.0; if (brightness > 1.0) brightness = 1.0; if (alpha != 100) a = (a * alpha)/100; // convert HSB to RGB if (saturation == 0) { r = g = b = (int)(brightness * 255.0f + 0.5f); } else { h2 = (hue - (int)hue) * 6.0f; f = h2 - (int)(h2); p = brightness * (1.0f - saturation); q = brightness * (1.0f - saturation * f); t = brightness * (1.0f - (saturation * (1.0f - f))); switch ((int) h2) { case 0: r = (int)(brightness * 255.0f + 0.5f); g = (int)(t * 255.0f + 0.5f); b = (int)(p * 255.0f + 0.5f); break; case 1: r = (int)(q * 255.0f + 0.5f); g = (int)(brightness * 255.0f + 0.5f); b = (int)(p * 255.0f + 0.5f); break; case 2: r = (int)(p * 255.0f + 0.5f); g = (int)(brightness * 255.0f + 0.5f); b = (int)(t * 255.0f + 0.5f); break; case 3: r = (int)(p * 255.0f + 0.5f); g = (int)(q * 255.0f + 0.5f); b = (int)(brightness * 255.0f + 0.5f); break; case 4: r = (int)(t * 255.0f + 0.5f); g = (int)(p * 255.0f + 0.5f); b = (int)(brightness * 255.0f + 0.5f); break; case 5: r = (int)(brightness * 255.0f + 0.5f); g = (int)(p * 255.0f + 0.5f); b = (int)(q * 255.0f + 0.5f); break; } } argb = a; argb = (argb << 8) + r; argb = (argb << 8) + g; argb = (argb << 8) + b; data[id] = argb; } } } void createHeuristicMask(DATA32* data, int w, int h) { // first we need to find the mask color, therefore we check all 4 edge pixel and take the color which // appears most often (we only need to check three edges, the 4th is implicitly clear) unsigned int topLeft = data[0], topRight = data[w-1], bottomLeft = data[w*h-w], bottomRight = data[w*h-1]; int max = (topLeft == topRight) + (topLeft == bottomLeft) + (topLeft == bottomRight); int maskPos = 0; if ( max < (topRight == topLeft) + (topRight == bottomLeft) + (topRight == bottomRight) ) { max = (topRight == topLeft) + (topRight == bottomLeft) + (topRight == bottomRight); maskPos = w-1; } if ( max < (bottomLeft == topRight) + (bottomLeft == topLeft) + (bottomLeft == bottomRight) ) maskPos = w*h-w; // now mask out every pixel which has the same color as the edge pixels unsigned char* udata = (unsigned char*)data; unsigned char b = udata[4*maskPos]; unsigned char g = udata[4*maskPos+1]; unsigned char r = udata[4*maskPos+1]; int i; for (i=0; i<h*w; ++i) { if ( b-udata[0] == 0 && g-udata[1] == 0 && r-udata[2] == 0 ) udata[3] = 0; udata += 4; } } void render_image(Drawable d, int x, int y, int w, int h) { // in real_transparency mode imlib_render_image_on_drawable does not the right thing, because // the operation is IMLIB_OP_COPY, but we would need IMLIB_OP_OVER (which does not exist) // Therefore we have to do it with the XRender extension (i.e. copy what imlib is doing internally) // But first we need to render the image onto itself with PictOpIn to adjust the colors to the alpha channel Pixmap pmap_tmp = XCreatePixmap(server.dsp, server.root_win, w, h, 32); imlib_context_set_drawable(pmap_tmp); imlib_context_set_blend(0); imlib_render_image_on_drawable(0, 0); Picture pict_image = XRenderCreatePicture(server.dsp, pmap_tmp, XRenderFindStandardFormat(server.dsp, PictStandardARGB32), 0, 0); Picture pict_drawable = XRenderCreatePicture(server.dsp, d, XRenderFindVisualFormat(server.dsp, server.visual), 0, 0); XRenderComposite(server.dsp, PictOpIn, pict_image, None, pict_image, 0, 0, 0, 0, 0, 0, w, h); XRenderComposite(server.dsp, PictOpOver, pict_image, None, pict_drawable, 0, 0, 0, 0, x, y, w, h); imlib_context_set_blend(1); XFreePixmap(server.dsp, pmap_tmp); XRenderFreePicture(server.dsp, pict_image); XRenderFreePicture(server.dsp, pict_drawable); } |