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 printf("Initializing TrueColor RenderControl\n");
32 Visual *visual = display->screenInfo(_screen)->visual();
33 unsigned long red_mask, green_mask, blue_mask;
35 // find the offsets for each color in the visual's masks
36 red_mask = visual->red_mask;
37 green_mask = visual->green_mask;
38 blue_mask = visual->blue_mask;
40 while (! (red_mask & 1)) { _red_offset++; red_mask >>= 1; }
41 while (! (green_mask & 1)) { _green_offset++; green_mask >>= 1; }
42 while (! (blue_mask & 1)) { _blue_offset++; blue_mask >>= 1; }
44 _red_shift = _green_shift = _blue_shift = 8;
45 while (red_mask) { red_mask >>= 1; _red_shift--; }
46 while (green_mask) { green_mask >>= 1; _green_shift--; }
47 while (blue_mask) { blue_mask >>= 1; _blue_shift--; }
50 TrueRenderControl::~TrueRenderControl()
52 printf("Destroying TrueColor RenderControl\n");
58 static inline void renderPixel(XImage *im, unsigned char *dp,
61 unsigned int bpp = im->bits_per_pixel + (im->byte_order == MSBFirst ? 1 : 0);
98 assert(false); // wtf?
102 void TrueRenderControl::drawGradientBackground(
103 Surface &sf, const RenderTexture &texture) const
106 int w = sf.width(), h = sf.height(), off, x;
108 const ScreenInfo *info = display->screenInfo(_screen);
109 XImage *im = XCreateImage(**display, info->visual(), info->depth(),
110 ZPixmap, 0, NULL, w, h, 32, 0);
112 pixel32 *data = new pixel32[sf.height()*sf.width()];
115 switch (texture.gradient()) {
116 case RenderTexture::Vertical:
117 verticalGradient(sf, texture, data);
119 case RenderTexture::Diagonal:
120 diagonalGradient(sf, texture, data);
122 case RenderTexture::CrossDiagonal:
123 crossDiagonalGradient(sf, texture, data);
126 printf("unhandled gradient\n");
129 if (texture.relief() == RenderTexture::Flat && texture.border()) {
130 r = texture.borderColor().red();
131 g = texture.borderColor().green();
132 b = texture.borderColor().blue();
136 for (off = 0, x = 0; x < w; ++x, off++) {
137 *(data + off) = current;
138 *(data + off + ((h-1) * w)) = current;
140 for (off = 0, x = 0; x < h; ++x, off++) {
141 *(data + (off * w)) = current;
142 *(data + (off * w) + w - 1) = current;
146 if (texture.relief() != RenderTexture::Flat) {
147 if (texture.bevel() == RenderTexture::Bevel1) {
148 for (off = 1, x = 1; x < w - 1; ++x, off++)
149 highlight(data + off,
150 data + off + (h-1) * w,
151 texture.relief()==RenderTexture::Raised);
152 for (off = 0, x = 0; x < h; ++x, off++)
153 highlight(data + off * w,
154 data + off * w + w - 1,
155 texture.relief()==RenderTexture::Raised);
158 if (texture.bevel() == RenderTexture::Bevel2) {
159 for (off = 2, x = 2; x < w - 2; ++x, off++)
160 highlight(data + off + w,
161 data + off + (h-2) * w,
162 texture.relief()==RenderTexture::Raised);
163 for (off = 1, x = 1; x < h-1; ++x, off++)
164 highlight(data + off * w + 1,
165 data + off * w + w - 2,
166 texture.relief()==RenderTexture::Raised);
170 reduceDepth(im, data);
172 im->data = (char*) data;
181 void TrueRenderControl::verticalGradient(Surface &sf,
182 const RenderTexture &texture,
189 dr = (float)(texture.secondary_color().red() - texture.color().red());
190 dr/= (float)sf.height();
192 dg = (float)(texture.secondary_color().green() - texture.color().green());
193 dg/= (float)sf.height();
195 db = (float)(texture.secondary_color().blue() - texture.color().blue());
196 db/= (float)sf.height();
198 for (int y = 0; y < sf.height(); ++y) {
199 r = texture.color().red() + (int)(dr * y);
200 g = texture.color().green() + (int)(dg * y);
201 b = texture.color().blue() + (int)(db * y);
205 for (int x = 0; x < sf.width(); ++x, ++data)
210 void TrueRenderControl::diagonalGradient(Surface &sf,
211 const RenderTexture &texture,
215 float drx, dgx, dbx, dry, dgy, dby;
219 for (int y = 0; y < sf.height(); ++y) {
220 drx = (float)(texture.secondary_color().red() - texture.color().red());
221 dry = drx/(float)sf.height();
222 drx/= (float)sf.width();
224 dgx = (float)(texture.secondary_color().green() - texture.color().green());
225 dgy = dgx/(float)sf.height();
226 dgx/= (float)sf.width();
228 dbx = (float)(texture.secondary_color().blue() - texture.color().blue());
229 dby = dbx/(float)sf.height();
230 dbx/= (float)sf.width();
231 for (int x = 0; x < sf.width(); ++x, ++data) {
232 r = texture.color().red() + ((int)(drx * x) + (int)(dry * y))/2;
233 g = texture.color().green() + ((int)(dgx * x) + (int)(dgy * y))/2;
234 b = texture.color().blue() + ((int)(dbx * x) + (int)(dby * y))/2;
243 void TrueRenderControl::crossDiagonalGradient(Surface &sf,
244 const RenderTexture &texture,
248 float drx, dgx, dbx, dry, dgy, dby;
251 for (int y = 0; y < sf.height(); ++y) {
252 drx = (float)(texture.secondary_color().red() - texture.color().red());
253 dry = drx/(float)sf.height();
254 drx/= (float)sf.width();
256 dgx = (float)(texture.secondary_color().green() - texture.color().green());
257 dgy = dgx/(float)sf.height();
258 dgx/= (float)sf.width();
260 dbx = (float)(texture.secondary_color().blue() - texture.color().blue());
261 dby = dbx/(float)sf.height();
262 dbx/= (float)sf.width();
263 for (int x = sf.width(); x > 0; --x, ++data) {
264 r = texture.color().red() + ((int)(drx * (x-1)) + (int)(dry * y))/2;
265 g = texture.color().green() + ((int)(dgx * (x-1)) + (int)(dgy * y))/2;
266 b = texture.color().blue() + ((int)(dbx * (x-1)) + (int)(dby * y))/2;
274 void TrueRenderControl::reduceDepth(XImage *im, pixel32 *data) const
276 // since pixel32 is the largest possible pixel size, we can share the array
279 pixel16 *p = (pixel16 *)data;
280 switch (im->bits_per_pixel) {
284 for (y = 0; y < im->height; y++) {
285 for (x = 0; x < im->width; x++) {
286 r = (data[x] >> 16) & 0xFF;
288 g = (data[x] >> 8) & 0xFF;
289 g = g >> _green_shift;
291 b = b >> _blue_shift;
292 p[x] = (r << _red_offset) + (g << _green_offset) + (b << _blue_offset);
295 p += im->bytes_per_line/2;
299 printf("your bit depth is currently unhandled\n");
303 void TrueRenderControl::highlight(pixel32 *x, pixel32 *y, bool raised) const
315 r = (*up >> 16) & 0xFF;
317 g = (*up >> 8) & 0xFF;
321 if (r > 255) r = 255;
322 if (g > 255) g = 255;
323 if (b > 255) b = 255;
324 *up = (r << 16) + (g << 8) + b;
326 r = (*down >> 16) & 0xFF;
327 r = (r >> 1) + (r >> 2);
328 g = (*down >> 8) & 0xFF;
329 g = (g >> 1) + (g >> 2);
331 b = (b >> 1) + (b >> 2);
332 *down = (r << 16) + (g << 8) + b;
334 void TrueRenderControl::drawBackground(Surface& sf,
335 const RenderTexture &texture) const
337 assert(_screen == sf._screen);
338 assert(_screen == texture.color().screen());
340 if (texture.gradient() == RenderTexture::Solid) {
341 drawSolidBackground(sf, texture);
343 drawGradientBackground(sf, texture);