X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2Futil%2Fcommon.c;h=9f122d6a3ca9b54b816851dc028b9a7e4888678d;hb=8abd6d423bffc9cd35928e1911c138163f7dbda9;hp=55a853b7c127f3475cc7d4add583c7ea81247349;hpb=8354267448dab01626da0c4b3d2eedfa20e6858a;p=chaz%2Ftint2

diff --git a/src/util/common.c b/src/util/common.c
index 55a853b..9f122d6 100644
--- a/src/util/common.c
+++ b/src/util/common.c
@@ -21,15 +21,112 @@
 #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 "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) fwrite(line, 1, nb, fileDest);
+
+	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;
+}
+
+
+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;
@@ -139,3 +236,38 @@ void adjust_asb(DATA32 *data, int w, int h, int alpha, float satur, float bright
 	}
 }
 
+
+void createHeuristicMask(DATA32* data, int w, int h)
+{
+	unsigned char* udata = (unsigned char*)data;
+	int b = udata[0];
+	int g = udata[1];
+	int r = udata[2];
+	int i;
+	for (i=0; i<h*w; ++i) {
+		if ( abs(b-*udata)<5 && abs(g-*(udata+1))<5 && abs(r-*(udata+2))<5 ) {
+			*(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);
+	XFreePixmap(server.dsp, pmap_tmp);
+	XRenderFreePicture(server.dsp, pict_image);
+	XRenderFreePicture(server.dsp, pict_drawable);
+}