7 void RrColorAllocateGC(RrColor *in)
11 gcv.foreground = in->pixel;
12 gcv.cap_style = CapProjecting;
13 in->gc = XCreateGC(RrDisplay(in->inst),
14 RrRootWindow(in->inst),
15 GCForeground | GCCapStyle, &gcv);
18 RrColor *RrColorParse(const RrInstance *inst, gchar *colorname)
22 g_assert(colorname != NULL);
23 /* get rgb values from colorname */
29 if (!XParseColor(RrDisplay(inst), RrColormap(inst), colorname, &xcol)) {
30 g_warning("unable to parse color '%s'", colorname);
33 return RrColorNew(inst, xcol.red >> 8, xcol.green >> 8, xcol.blue >> 8);
36 RrColor *RrColorNew(const RrInstance *inst, gint r, gint g, gint b)
38 /* this should be replaced with something far cooler */
41 xcol.red = (r << 8) | r;
42 xcol.green = (g << 8) | g;
43 xcol.blue = (b << 8) | b;
44 if (XAllocColor(RrDisplay(inst), RrColormap(inst), &xcol)) {
45 out = g_new(RrColor, 1);
47 out->r = xcol.red >> 8;
48 out->g = xcol.green >> 8;
49 out->b = xcol.blue >> 8;
51 out->pixel = xcol.pixel;
56 /*XXX same color could be pointed to twice, this might have to be a refcount*/
58 void RrColorFree(RrColor *c)
61 if (c->gc) XFreeGC(RrDisplay(c->inst), c->gc);
66 void RrReduceDepth(const RrInstance *inst, RrPixel32 *data, XImage *im)
70 RrPixel32 *p32 = (RrPixel32 *) im->data;
71 RrPixel16 *p16 = (RrPixel16 *) im->data;
72 unsigned char *p8 = (unsigned char *)im->data;
73 switch (im->bits_per_pixel) {
75 if ((RrRedOffset(inst) != RrDefaultRedOffset) ||
76 (RrBlueOffset(inst) != RrDefaultBlueOffset) ||
77 (RrGreenOffset(inst) != RrDefaultGreenOffset)) {
78 g_message("CONVERSION %d->%d %d->%d %d->%d",
79 RrDefaultRedOffset, RrRedOffset(inst),
80 RrDefaultBlueOffset, RrGreenOffset(inst),
81 RrDefaultGreenOffset, RrBlueOffset(inst));
82 for (y = 0; y < im->height; y++) {
83 for (x = 0; x < im->width; x++) {
84 r = (data[x] >> RrDefaultRedOffset) & 0xFF;
85 g = (data[x] >> RrDefaultGreenOffset) & 0xFF;
86 b = (data[x] >> RrDefaultBlueOffset) & 0xFF;
87 p32[x] = (r << RrRedOffset(inst))
88 + (g << RrGreenOffset(inst))
89 + (b << RrBlueOffset(inst));
94 } else im->data = (char*) data;
97 for (y = 0; y < im->height; y++) {
98 for (x = 0; x < im->width; x++) {
99 r = (data[x] >> RrDefaultRedOffset) & 0xFF;
100 r = r >> RrRedShift(inst);
101 g = (data[x] >> RrDefaultGreenOffset) & 0xFF;
102 g = g >> RrGreenShift(inst);
103 b = (data[x] >> RrDefaultBlueOffset) & 0xFF;
104 b = b >> RrBlueShift(inst);
105 p16[x] = (r << RrRedOffset(inst))
106 + (g << RrGreenOffset(inst))
107 + (b << RrBlueOffset(inst));
110 p16 += im->bytes_per_line/2;
114 g_assert(RrVisual(inst)->class != TrueColor);
115 for (y = 0; y < im->height; y++) {
116 for (x = 0; x < im->width; x++) {
117 p8[x] = RrPickColor(inst,
118 data[x] >> RrDefaultRedOffset,
119 data[x] >> RrDefaultGreenOffset,
120 data[x] >> RrDefaultBlueOffset)->pixel;
123 p8 += im->bytes_per_line;
128 g_message("your bit depth is currently unhandled\n");
132 XColor *RrPickColor(const RrInstance *inst, gint r, gint g, gint b)
134 r = (r & 0xff) >> (8-RrPseudoBPC(inst));
135 g = (g & 0xff) >> (8-RrPseudoBPC(inst));
136 b = (b & 0xff) >> (8-RrPseudoBPC(inst));
137 return &RrPseudoColors(inst)[(r << (2*RrPseudoBPC(inst))) +
138 (g << (1*RrPseudoBPC(inst))) +
142 static void swap_byte_order(XImage *im)
146 g_message("SWAPPING BYTE ORDER");
149 for (y = 0; y < im->height; ++y) {
150 for (x = 0; x < im->height; ++x) {
151 char *c = &im->data[di + x * im->bits_per_pixel / 8];
154 switch (im->bits_per_pixel) {
166 g_message("your bit depth is currently unhandled\n");
169 di += im->bytes_per_line;
172 if (im->byte_order == LSBFirst)
173 im->byte_order = MSBFirst;
175 im->byte_order = LSBFirst;
178 void RrIncreaseDepth(const RrInstance *inst, RrPixel32 *data, XImage *im)
182 RrPixel32 *p32 = (RrPixel32 *) im->data;
183 RrPixel16 *p16 = (RrPixel16 *) im->data;
184 unsigned char *p8 = (unsigned char *)im->data;
186 if (im->byte_order != RrEndian)
189 switch (im->bits_per_pixel) {
191 for (y = 0; y < im->height; y++) {
192 for (x = 0; x < im->width; x++) {
193 r = (p32[x] >> RrRedOffset(inst)) & 0xff;
194 g = (p32[x] >> RrGreenOffset(inst)) & 0xff;
195 b = (p32[x] >> RrBlueOffset(inst)) & 0xff;
196 data[x] = (r << RrDefaultRedOffset)
197 + (g << RrDefaultGreenOffset)
198 + (b << RrDefaultBlueOffset)
199 + (0xff << RrDefaultAlphaOffset);
202 p32 += im->bytes_per_line/4;
206 for (y = 0; y < im->height; y++) {
207 for (x = 0; x < im->width; x++) {
208 r = (p16[x] & RrRedMask(inst)) >>
211 g = (p16[x] & RrGreenMask(inst)) >>
212 RrGreenOffset(inst) <<
214 b = (p16[x] & RrBlueMask(inst)) >>
215 RrBlueOffset(inst) <<
217 data[x] = (r << RrDefaultRedOffset)
218 + (g << RrDefaultGreenOffset)
219 + (b << RrDefaultBlueOffset)
220 + (0xff << RrDefaultAlphaOffset);
223 p16 += im->bytes_per_line/2;
227 g_message("this image bit depth is currently unhandled\n");
230 for (y = 0; y < im->height; y++) {
231 for (x = 0; x < im->width; x++) {
232 if (!(((p8[x / 8]) >> (x % 8)) & 0x1))
233 data[x] = 0xff << RrDefaultAlphaOffset; /* black */
235 data[x] = 0xffffffff; /* white */
238 p8 += im->bytes_per_line;
242 g_message("this image bit depth is currently unhandled\n");
246 int RrColorRed(const RrColor *c)
251 int RrColorGreen(const RrColor *c)
256 int RrColorBlue(const RrColor *c)
261 gulong RrColorPixel(const RrColor *c)