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 for (y = 0; y < im->height; y++) {
79 for (x = 0; x < im->width; x++) {
80 r = (data[x] >> RrDefaultRedOffset) & 0xFF;
81 g = (data[x] >> RrDefaultGreenOffset) & 0xFF;
82 b = (data[x] >> RrDefaultBlueOffset) & 0xFF;
83 p32[x] = (r << RrRedShift(inst))
84 + (g << RrGreenShift(inst))
85 + (b << RrBlueShift(inst));
90 } else im->data = (char*) data;
93 for (y = 0; y < im->height; y++) {
94 for (x = 0; x < im->width; x++) {
95 r = (data[x] >> RrDefaultRedOffset) & 0xFF;
96 r = r >> RrRedShift(inst);
97 g = (data[x] >> RrDefaultGreenOffset) & 0xFF;
98 g = g >> RrGreenShift(inst);
99 b = (data[x] >> RrDefaultBlueOffset) & 0xFF;
100 b = b >> RrBlueShift(inst);
101 p16[x] = (r << RrRedOffset(inst))
102 + (g << RrGreenOffset(inst))
103 + (b << RrBlueOffset(inst));
106 p16 += im->bytes_per_line/2;
110 g_assert(RrVisual(inst)->class != TrueColor);
111 for (y = 0; y < im->height; y++) {
112 for (x = 0; x < im->width; x++) {
113 p8[x] = RrPickColor(inst,
114 data[x] >> RrDefaultRedOffset,
115 data[x] >> RrDefaultGreenOffset,
116 data[x] >> RrDefaultBlueOffset)->pixel;
119 p8 += im->bytes_per_line;
124 g_message("your bit depth is currently unhandled\n");
128 XColor *RrPickColor(const RrInstance *inst, gint r, gint g, gint b)
130 r = (r & 0xff) >> (8-RrPseudoBPC(inst));
131 g = (g & 0xff) >> (8-RrPseudoBPC(inst));
132 b = (b & 0xff) >> (8-RrPseudoBPC(inst));
133 return &RrPseudoColors(inst)[(r << (2*RrPseudoBPC(inst))) +
134 (g << (1*RrPseudoBPC(inst))) +
138 static void swap_byte_order(XImage *im)
142 g_message("SWAPPING BYTE ORDER");
145 for (y = 0; y < im->height; ++y) {
146 for (x = 0; x < im->height; ++x) {
147 char *c = &im->data[di + x * im->bits_per_pixel / 8];
150 switch (im->bits_per_pixel) {
162 g_message("your bit depth is currently unhandled\n");
165 di += im->bytes_per_line;
168 if (im->byte_order == LSBFirst)
169 im->byte_order = MSBFirst;
171 im->byte_order = LSBFirst;
174 void RrIncreaseDepth(const RrInstance *inst, RrPixel32 *data, XImage *im)
178 RrPixel32 *p32 = (RrPixel32 *) im->data;
179 RrPixel16 *p16 = (RrPixel16 *) im->data;
180 unsigned char *p8 = (unsigned char *)im->data;
182 if (im->byte_order != RrEndian)
185 switch (im->bits_per_pixel) {
187 for (y = 0; y < im->height; y++) {
188 for (x = 0; x < im->width; x++) {
189 r = (p32[x] >> RrRedOffset(inst)) & 0xff;
190 g = (p32[x] >> RrGreenOffset(inst)) & 0xff;
191 b = (p32[x] >> RrBlueOffset(inst)) & 0xff;
192 data[x] = (r << RrDefaultRedOffset)
193 + (g << RrDefaultGreenOffset)
194 + (b << RrDefaultBlueOffset)
195 + (0xff << RrDefaultAlphaOffset);
198 p32 += im->bytes_per_line/4;
202 for (y = 0; y < im->height; y++) {
203 for (x = 0; x < im->width; x++) {
204 r = (p16[x] & RrRedMask(inst)) >>
207 g = (p16[x] & RrGreenMask(inst)) >>
208 RrGreenOffset(inst) <<
210 b = (p16[x] & RrBlueMask(inst)) >>
211 RrBlueOffset(inst) <<
213 data[x] = (r << RrDefaultRedOffset)
214 + (g << RrDefaultGreenOffset)
215 + (b << RrDefaultBlueOffset)
216 + (0xff << RrDefaultAlphaOffset);
219 p16 += im->bytes_per_line/2;
223 g_message("this image bit depth is currently unhandled\n");
226 for (y = 0; y < im->height; y++) {
227 for (x = 0; x < im->width; x++) {
228 if (!(((p8[x / 8]) >> (x % 8)) & 0x1))
229 data[x] = 0xff << RrDefaultAlphaOffset; /* black */
231 data[x] = 0xffffffff; /* white */
234 p8 += im->bytes_per_line;
238 g_message("this image bit depth is currently unhandled\n");