1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
4 # include "../config.h"
5 #endif // HAVE_CONFIG_H
7 #include "truerendercontrol.hh"
9 #include "screeninfo.hh"
11 #include "rendertexture.hh"
16 #endif // HAVE_STDLIB_H
18 #include "../src/gettext.h"
19 #define _(str) gettext(str)
24 TrueRenderControl::TrueRenderControl(int screen)
25 : RenderControl(screen),
30 const ScreenInfo *info = display->screenInfo(_screen);
31 XImage *timage = XCreateImage(**display, info->visual(), info->depth(),
32 ZPixmap, 0, NULL, 1, 1, 32, 0);
33 printf("Initializing TrueColor RenderControl\n");
35 unsigned long red_mask, green_mask, blue_mask;
37 // find the offsets for each color in the visual's masks
38 red_mask = timage->red_mask;
39 green_mask = timage->green_mask;
40 blue_mask = timage->blue_mask;
42 while (! (red_mask & 1)) { _red_offset++; red_mask >>= 1; }
43 while (! (green_mask & 1)) { _green_offset++; green_mask >>= 1; }
44 while (! (blue_mask & 1)) { _blue_offset++; blue_mask >>= 1; }
46 _red_shift = _green_shift = _blue_shift = 8;
47 while (red_mask) { red_mask >>= 1; _red_shift--; }
48 while (green_mask) { green_mask >>= 1; _green_shift--; }
49 while (blue_mask) { blue_mask >>= 1; _blue_shift--; }
53 TrueRenderControl::~TrueRenderControl()
55 printf("Destroying TrueColor RenderControl\n");
58 void TrueRenderControl::drawGradientBackground(
59 Surface &sf, const RenderTexture &texture) const
62 unsigned int w = sf.size().width(), h = sf.size().height();
65 const ScreenInfo *info = display->screenInfo(_screen);
66 XImage *im = XCreateImage(**display, info->visual(), info->depth(),
67 ZPixmap, 0, NULL, w, h, 32, 0);
68 im->byte_order = endian;
69 pixel32 *data = new pixel32[h*w];
72 switch (texture.gradient()) {
73 case RenderTexture::Vertical:
74 verticalGradient(sf, texture, data);
76 case RenderTexture::Diagonal:
77 diagonalGradient(sf, texture, data);
79 case RenderTexture::CrossDiagonal:
80 crossDiagonalGradient(sf, texture, data);
83 printf("unhandled gradient\n");
86 if (texture.relief() == RenderTexture::Flat && texture.border()) {
87 r = texture.borderColor().red();
88 g = texture.borderColor().green();
89 b = texture.borderColor().blue();
90 current = (r << default_red_shift)
91 + (g << default_green_shift)
92 + (b << default_blue_shift);
93 for (off = 0, x = 0; x < w; ++x, off++) {
94 *(data + off) = current;
95 *(data + off + ((h-1) * w)) = current;
97 for (off = 0, x = 0; x < h; ++x, off++) {
98 *(data + (off * w)) = current;
99 *(data + (off * w) + w - 1) = current;
103 if (texture.relief() != RenderTexture::Flat) {
104 if (texture.bevel() == RenderTexture::Bevel1) {
105 if (w >= 1 && h >= 1) {
106 for (off = 1, x = 1; x < w - 1; ++x, off++)
107 highlight(data + off,
108 data + off + (h-1) * w,
109 texture.relief()==RenderTexture::Raised);
110 for (off = 0, x = 0; x < h; ++x, off++)
111 highlight(data + off * w,
112 data + off * w + w - 1,
113 texture.relief()==RenderTexture::Raised);
117 if (texture.bevel() == RenderTexture::Bevel2) {
118 if (w >= 2 && h >= 2) {
119 for (off = 2, x = 2; x < w - 2; ++x, off++)
120 highlight(data + off + w,
121 data + off + (h-2) * w,
122 texture.relief()==RenderTexture::Raised);
123 for (off = 1, x = 1; x < h-1; ++x, off++)
124 highlight(data + off * w + 1,
125 data + off * w + w - 2,
126 texture.relief()==RenderTexture::Raised);
131 reduceDepth(im, data);
133 im->data = (char*) data;
142 void TrueRenderControl::verticalGradient(Surface &sf,
143 const RenderTexture &texture,
149 unsigned int w = sf.size().width(), h = sf.size().height();
151 dr = (float)(texture.secondary_color().red() - texture.color().red());
154 dg = (float)(texture.secondary_color().green() - texture.color().green());
157 db = (float)(texture.secondary_color().blue() - texture.color().blue());
160 for (unsigned int y = 0; y < h; ++y) {
161 r = texture.color().red() + (int)(dr * y);
162 g = texture.color().green() + (int)(dg * y);
163 b = texture.color().blue() + (int)(db * y);
164 current = (r << default_red_shift)
165 + (g << default_green_shift)
166 + (b << default_blue_shift);
167 for (unsigned int x = 0; x < w; ++x, ++data)
172 void TrueRenderControl::diagonalGradient(Surface &sf,
173 const RenderTexture &texture,
177 float drx, dgx, dbx, dry, dgy, dby;
179 unsigned int w = sf.size().width(), h = sf.size().height();
181 for (unsigned int y = 0; y < h; ++y) {
182 drx = (float)(texture.secondary_color().red() - texture.color().red());
186 dgx = (float)(texture.secondary_color().green() - texture.color().green());
190 dbx = (float)(texture.secondary_color().blue() - texture.color().blue());
193 for (unsigned int x = 0; x < w; ++x, ++data) {
194 r = texture.color().red() + ((int)(drx * x) + (int)(dry * y))/2;
195 g = texture.color().green() + ((int)(dgx * x) + (int)(dgy * y))/2;
196 b = texture.color().blue() + ((int)(dbx * x) + (int)(dby * y))/2;
197 current = (r << default_red_shift)
198 + (g << default_green_shift)
199 + (b << default_blue_shift);
205 void TrueRenderControl::crossDiagonalGradient(Surface &sf,
206 const RenderTexture &texture,
210 float drx, dgx, dbx, dry, dgy, dby;
212 unsigned int w = sf.size().width(), h = sf.size().height();
214 for (unsigned int y = 0; y < h; ++y) {
215 drx = (float)(texture.secondary_color().red() - texture.color().red());
219 dgx = (float)(texture.secondary_color().green() - texture.color().green());
223 dbx = (float)(texture.secondary_color().blue() - texture.color().blue());
226 for (int x = w; x > 0; --x, ++data) {
227 r = texture.color().red() + ((int)(drx * (x-1)) + (int)(dry * y))/2;
228 g = texture.color().green() + ((int)(dgx * (x-1)) + (int)(dgy * y))/2;
229 b = texture.color().blue() + ((int)(dbx * (x-1)) + (int)(dby * y))/2;
230 current = (r << default_red_shift)
231 + (g << default_green_shift)
232 + (b << default_blue_shift);
238 void TrueRenderControl::reduceDepth(XImage *im, pixel32 *data) const
240 // since pixel32 is the largest possible pixel size, we can share the array
243 pixel16 *p = (pixel16*) data;
244 switch (im->bits_per_pixel) {
246 if ((_red_offset != default_red_shift) ||
247 (_blue_offset != default_blue_shift) ||
248 (_green_offset != default_green_shift)) {
249 printf("cross endian conversion\n");
250 for (y = 0; y < im->height; y++) {
251 for (x = 0; x < im->width; x++) {
252 r = (data[x] >> default_red_shift) & 0xFF;
253 g = (data[x] >> default_green_shift) & 0xFF;
254 b = (data[x] >> default_blue_shift) & 0xFF;
255 data[x] = (r << _red_offset) + (g << _green_offset) +
263 for (y = 0; y < im->height; y++) {
264 for (x = 0; x < im->width; x++) {
265 r = (data[x] >> default_red_shift) & 0xFF;
267 g = (data[x] >> default_green_shift) & 0xFF;
268 g = g >> _green_shift;
269 b = (data[x] >> default_blue_shift) & 0xFF;
270 b = b >> _blue_shift;
271 p[x] = (r << _red_offset) + (g << _green_offset) + (b << _blue_offset);
274 p += im->bytes_per_line/2;
278 printf("your bit depth is currently unhandled\n");
282 void TrueRenderControl::highlight(pixel32 *x, pixel32 *y, bool raised) const
294 r = (*up >> default_red_shift) & 0xFF;
296 g = (*up >> default_green_shift) & 0xFF;
298 b = (*up >> default_blue_shift) & 0xFF;
300 if (r > 255) r = 255;
301 if (g > 255) g = 255;
302 if (b > 255) b = 255;
303 *up = (r << default_red_shift) + (g << default_green_shift)
304 + (b << default_blue_shift);
306 r = (*down >> default_red_shift) & 0xFF;
307 r = (r >> 1) + (r >> 2);
308 g = (*down >> default_green_shift) & 0xFF;
309 g = (g >> 1) + (g >> 2);
310 b = (*down >> default_blue_shift) & 0xFF;
311 b = (b >> 1) + (b >> 2);
312 *down = (r << default_red_shift) + (g << default_green_shift)
313 + (b << default_blue_shift);
316 void TrueRenderControl::drawBackground(Surface& sf,
317 const RenderTexture &texture) const
319 assert(_screen == sf._screen);
320 assert(_screen == texture.color().screen());
322 if (texture.gradient() == RenderTexture::Solid)
323 drawSolidBackground(sf, texture);
325 drawGradientBackground(sf, texture);