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 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 for (off = 1, x = 1; x < w - 1; ++x, off++)
106 highlight(data + off,
107 data + off + (h-1) * w,
108 texture.relief()==RenderTexture::Raised);
109 for (off = 0, x = 0; x < h; ++x, off++)
110 highlight(data + off * w,
111 data + off * w + w - 1,
112 texture.relief()==RenderTexture::Raised);
115 if (texture.bevel() == RenderTexture::Bevel2) {
116 for (off = 2, x = 2; x < w - 2; ++x, off++)
117 highlight(data + off + w,
118 data + off + (h-2) * w,
119 texture.relief()==RenderTexture::Raised);
120 for (off = 1, x = 1; x < h-1; ++x, off++)
121 highlight(data + off * w + 1,
122 data + off * w + w - 2,
123 texture.relief()==RenderTexture::Raised);
127 reduceDepth(im, data);
129 im->data = (char*) data;
138 void TrueRenderControl::verticalGradient(Surface &sf,
139 const RenderTexture &texture,
145 int w = sf.size().width(), h = sf.size().height();
147 dr = (float)(texture.secondary_color().red() - texture.color().red());
150 dg = (float)(texture.secondary_color().green() - texture.color().green());
153 db = (float)(texture.secondary_color().blue() - texture.color().blue());
156 for (int y = 0; y < h; ++y) {
157 r = texture.color().red() + (int)(dr * y);
158 g = texture.color().green() + (int)(dg * y);
159 b = texture.color().blue() + (int)(db * y);
160 current = (r << default_red_shift)
161 + (g << default_green_shift)
162 + (b << default_blue_shift);
163 for (int x = 0; x < w; ++x, ++data)
168 void TrueRenderControl::diagonalGradient(Surface &sf,
169 const RenderTexture &texture,
173 float drx, dgx, dbx, dry, dgy, dby;
175 int w = sf.size().width(), h = sf.size().height();
177 for (int y = 0; y < h; ++y) {
178 drx = (float)(texture.secondary_color().red() - texture.color().red());
182 dgx = (float)(texture.secondary_color().green() - texture.color().green());
186 dbx = (float)(texture.secondary_color().blue() - texture.color().blue());
189 for (int x = 0; x < w; ++x, ++data) {
190 r = texture.color().red() + ((int)(drx * x) + (int)(dry * y))/2;
191 g = texture.color().green() + ((int)(dgx * x) + (int)(dgy * y))/2;
192 b = texture.color().blue() + ((int)(dbx * x) + (int)(dby * y))/2;
193 current = (r << default_red_shift)
194 + (g << default_green_shift)
195 + (b << default_blue_shift);
201 void TrueRenderControl::crossDiagonalGradient(Surface &sf,
202 const RenderTexture &texture,
206 float drx, dgx, dbx, dry, dgy, dby;
208 int w = sf.size().width(), h = sf.size().height();
210 for (int y = 0; y < h; ++y) {
211 drx = (float)(texture.secondary_color().red() - texture.color().red());
215 dgx = (float)(texture.secondary_color().green() - texture.color().green());
219 dbx = (float)(texture.secondary_color().blue() - texture.color().blue());
222 for (int x = w; x > 0; --x, ++data) {
223 r = texture.color().red() + ((int)(drx * (x-1)) + (int)(dry * y))/2;
224 g = texture.color().green() + ((int)(dgx * (x-1)) + (int)(dgy * y))/2;
225 b = texture.color().blue() + ((int)(dbx * (x-1)) + (int)(dby * y))/2;
226 current = (r << default_red_shift)
227 + (g << default_green_shift)
228 + (b << default_blue_shift);
234 void TrueRenderControl::reduceDepth(XImage *im, pixel32 *data) const
236 // since pixel32 is the largest possible pixel size, we can share the array
239 pixel16 *p = (pixel16*) data;
240 switch (im->bits_per_pixel) {
242 if ((_red_offset != default_red_shift) ||
243 (_blue_offset != default_blue_shift) ||
244 (_green_offset != default_green_shift)) {
245 printf("cross endian conversion\n");
246 for (y = 0; y < im->height; y++) {
247 for (x = 0; x < im->width; x++) {
248 r = (data[x] >> default_red_shift) & 0xFF;
249 g = (data[x] >> default_green_shift) & 0xFF;
250 b = (data[x] >> default_blue_shift) & 0xFF;
251 data[x] = (r << _red_offset) + (g << _green_offset) +
259 for (y = 0; y < im->height; y++) {
260 for (x = 0; x < im->width; x++) {
261 r = (data[x] >> default_red_shift) & 0xFF;
263 g = (data[x] >> default_green_shift) & 0xFF;
264 g = g >> _green_shift;
265 b = (data[x] >> default_blue_shift) & 0xFF;
266 b = b >> _blue_shift;
267 p[x] = (r << _red_offset) + (g << _green_offset) + (b << _blue_offset);
270 p += im->bytes_per_line/2;
274 printf("your bit depth is currently unhandled\n");
278 void TrueRenderControl::highlight(pixel32 *x, pixel32 *y, bool raised) const
290 r = (*up >> default_red_shift) & 0xFF;
292 g = (*up >> default_green_shift) & 0xFF;
294 b = (*up >> default_blue_shift) & 0xFF;
296 if (r > 255) r = 255;
297 if (g > 255) g = 255;
298 if (b > 255) b = 255;
299 *up = (r << default_red_shift) + (g << default_green_shift)
300 + (b << default_blue_shift);
302 r = (*down >> default_red_shift) & 0xFF;
303 r = (r >> 1) + (r >> 2);
304 g = (*down >> default_green_shift) & 0xFF;
305 g = (g >> 1) + (g >> 2);
306 b = (*down >> default_blue_shift) & 0xFF;
307 b = (b >> 1) + (b >> 2);
308 *down = (r << default_red_shift) + (g << default_green_shift)
309 + (b << default_blue_shift);
312 void TrueRenderControl::drawBackground(Surface& sf,
313 const RenderTexture &texture) const
315 assert(_screen == sf._screen);
316 assert(_screen == texture.color().screen());
318 if (texture.gradient() == RenderTexture::Solid)
319 drawSolidBackground(sf, texture);
321 drawGradientBackground(sf, texture);