1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
5 #include "truerendercontrol.hh"
7 #include "screeninfo.hh"
9 #include "rendertexture.hh"
14 #endif // HAVE_STDLIB_H
16 #include "../src/gettext.h"
17 #define _(str) gettext(str)
22 TrueRenderControl::TrueRenderControl(int screen)
23 : RenderControl(screen),
28 const ScreenInfo *info = display->screenInfo(_screen);
29 XImage *timage = XCreateImage(**display, info->visual(), info->depth(),
30 ZPixmap, 0, NULL, 1, 1, 32, 0);
31 printf("Initializing TrueColor RenderControl\n");
33 unsigned long red_mask, green_mask, blue_mask;
35 // find the offsets for each color in the visual's masks
36 red_mask = timage->red_mask;
37 green_mask = timage->green_mask;
38 blue_mask = timage->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--; }
51 TrueRenderControl::~TrueRenderControl()
53 printf("Destroying TrueColor RenderControl\n");
56 void TrueRenderControl::drawGradientBackground(
57 Surface &sf, const RenderTexture &texture) const
60 int w = sf.size().width(), h = sf.size().height();
63 const ScreenInfo *info = display->screenInfo(_screen);
64 XImage *im = XCreateImage(**display, info->visual(), info->depth(),
65 ZPixmap, 0, NULL, w, h, 32, 0);
66 im->byte_order = endian;
68 switch (texture.gradient()) {
69 case RenderTexture::Vertical:
70 verticalGradient(sf, texture);
72 case RenderTexture::Diagonal:
73 diagonalGradient(sf, texture);
75 case RenderTexture::CrossDiagonal:
76 crossDiagonalGradient(sf, texture);
79 printf("unhandled gradient\n");
82 pixel32 *data = sf.pixelData();
85 if (texture.relief() == RenderTexture::Flat && texture.border()) {
86 r = texture.borderColor().red();
87 g = texture.borderColor().green();
88 b = texture.borderColor().blue();
89 current = (r << default_red_shift)
90 + (g << default_green_shift)
91 + (b << default_blue_shift);
92 for (off = 0, x = 0; x < w; ++x, off++) {
93 *(data + off) = current;
94 *(data + off + ((h-1) * w)) = current;
96 for (off = 0, x = 0; x < h; ++x, off++) {
97 *(data + (off * w)) = current;
98 *(data + (off * w) + w - 1) = current;
102 if (texture.relief() != RenderTexture::Flat) {
103 if (texture.bevel() == RenderTexture::Bevel1) {
104 for (off = 1, x = 1; x < w - 1; ++x, off++)
105 highlight(data + off,
106 data + off + (h-1) * w,
107 texture.relief()==RenderTexture::Raised);
108 for (off = 0, x = 0; x < h; ++x, off++)
109 highlight(data + off * w,
110 data + off * w + w - 1,
111 texture.relief()==RenderTexture::Raised);
114 if (texture.bevel() == RenderTexture::Bevel2) {
115 for (off = 2, x = 2; x < w - 2; ++x, off++)
116 highlight(data + off + w,
117 data + off + (h-2) * w,
118 texture.relief()==RenderTexture::Raised);
119 for (off = 1, x = 1; x < h-1; ++x, off++)
120 highlight(data + off * w + 1,
121 data + off * w + w - 2,
122 texture.relief()==RenderTexture::Raised);
128 im->data = (char*) data;
136 void TrueRenderControl::verticalGradient(Surface &sf,
137 const RenderTexture &texture) const
139 pixel32 *data = sf.pixelData();
143 int w = sf.size().width(), h = sf.size().height();
145 dr = (float)(texture.secondary_color().red() - texture.color().red());
148 dg = (float)(texture.secondary_color().green() - texture.color().green());
151 db = (float)(texture.secondary_color().blue() - texture.color().blue());
154 for (int y = 0; y < h; ++y) {
155 r = texture.color().red() + (int)(dr * y);
156 g = texture.color().green() + (int)(dg * y);
157 b = texture.color().blue() + (int)(db * y);
158 current = (r << default_red_shift)
159 + (g << default_green_shift)
160 + (b << default_blue_shift);
161 for (int x = 0; x < w; ++x, ++data)
166 void TrueRenderControl::diagonalGradient(Surface &sf,
167 const RenderTexture &texture) const
169 pixel32 *data = sf.pixelData();
171 float drx, dgx, dbx, dry, dgy, dby;
173 int w = sf.size().width(), h = sf.size().height();
175 for (int y = 0; y < h; ++y) {
176 drx = (float)(texture.secondary_color().red() - texture.color().red());
180 dgx = (float)(texture.secondary_color().green() - texture.color().green());
184 dbx = (float)(texture.secondary_color().blue() - texture.color().blue());
187 for (int x = 0; x < w; ++x, ++data) {
188 r = texture.color().red() + ((int)(drx * x) + (int)(dry * y))/2;
189 g = texture.color().green() + ((int)(dgx * x) + (int)(dgy * y))/2;
190 b = texture.color().blue() + ((int)(dbx * x) + (int)(dby * y))/2;
191 current = (r << default_red_shift)
192 + (g << default_green_shift)
193 + (b << default_blue_shift);
199 void TrueRenderControl::crossDiagonalGradient(
200 Surface &sf, const RenderTexture &texture) const
202 pixel32 *data = sf.pixelData();
204 float drx, dgx, dbx, dry, dgy, dby;
206 int w = sf.size().width(), h = sf.size().height();
208 for (int y = 0; y < h; ++y) {
209 drx = (float)(texture.secondary_color().red() - texture.color().red());
213 dgx = (float)(texture.secondary_color().green() - texture.color().green());
217 dbx = (float)(texture.secondary_color().blue() - texture.color().blue());
220 for (int x = w; x > 0; --x, ++data) {
221 r = texture.color().red() + ((int)(drx * (x-1)) + (int)(dry * y))/2;
222 g = texture.color().green() + ((int)(dgx * (x-1)) + (int)(dgy * y))/2;
223 b = texture.color().blue() + ((int)(dbx * (x-1)) + (int)(dby * y))/2;
224 current = (r << default_red_shift)
225 + (g << default_green_shift)
226 + (b << default_blue_shift);
232 void TrueRenderControl::reduceDepth(Surface &sf, XImage *im) const
234 // since pixel32 is the largest possible pixel size, we can share the array
237 pixel32 *data = sf.pixelData();
238 pixel16 *p = (pixel16*) data;
239 switch (im->bits_per_pixel) {
241 if ((_red_offset != default_red_shift) ||
242 (_blue_offset != default_blue_shift) ||
243 (_green_offset != default_green_shift)) {
244 printf("cross endian conversion\n");
245 for (y = 0; y < im->height; y++) {
246 for (x = 0; x < im->width; x++) {
247 r = (data[x] >> default_red_shift) & 0xFF;
248 g = (data[x] >> default_green_shift) & 0xFF;
249 b = (data[x] >> default_blue_shift) & 0xFF;
250 data[x] = (r << _red_offset) + (g << _green_offset) +
258 for (y = 0; y < im->height; y++) {
259 for (x = 0; x < im->width; x++) {
260 r = (data[x] >> default_red_shift) & 0xFF;
262 g = (data[x] >> default_green_shift) & 0xFF;
263 g = g >> _green_shift;
264 b = (data[x] >> default_blue_shift) & 0xFF;
265 b = b >> _blue_shift;
266 p[x] = (r << _red_offset) + (g << _green_offset) + (b << _blue_offset);
269 p += im->bytes_per_line/2;
273 printf("your bit depth is currently unhandled\n");
277 void TrueRenderControl::highlight(pixel32 *x, pixel32 *y, bool raised) const
289 r = (*up >> default_red_shift) & 0xFF;
291 g = (*up >> default_green_shift) & 0xFF;
293 b = (*up >> default_blue_shift) & 0xFF;
295 if (r > 255) r = 255;
296 if (g > 255) g = 255;
297 if (b > 255) b = 255;
298 *up = (r << default_red_shift) + (g << default_green_shift)
299 + (b << default_blue_shift);
301 r = (*down >> default_red_shift) & 0xFF;
302 r = (r >> 1) + (r >> 2);
303 g = (*down >> default_green_shift) & 0xFF;
304 g = (g >> 1) + (g >> 2);
305 b = (*down >> default_blue_shift) & 0xFF;
306 b = (b >> 1) + (b >> 2);
307 *down = (r << default_red_shift) + (g << default_green_shift)
308 + (b << default_blue_shift);
311 void TrueRenderControl::drawBackground(Surface& sf,
312 const RenderTexture &texture) const
314 assert(_screen == sf._screen);
315 assert(_screen == texture.color().screen());
317 if (texture.gradient() == RenderTexture::Solid)
318 drawSolidBackground(sf, texture);
320 drawGradientBackground(sf, texture);
324 void TrueRenderControl::drawImage(Surface &sf, int w, int h,
325 unsigned long *data) const
327 pixel32 *bg = sf.pixelData();
330 x = (sf.size().width() - w) / 2;
331 y = (sf.size().height() - h) / 2;
336 // XX SCALING!@!&*(@! to make it fit on the surface
340 for (i = 0, c = 0, e = w*h; i < e; ++i) {
341 unsigned char alpha = data[i] >> 24;
342 unsigned char r = data[i] >> 16;
343 unsigned char g = data[i] >> 8;
344 unsigned char b = data[i];
347 unsigned char bgr = bg[i] >> default_red_shift;
348 unsigned char bgg = bg[i] >> default_green_shift;
349 unsigned char bgb = bg[i] >> default_blue_shift;
351 r = bgr + (r - bgr) * alpha >> 8;
352 g = bgg + (g - bgg) * alpha >> 8;
353 b = bgb + (b - bgb) * alpha >> 8;
355 bg[i] = (r << default_red_shift) | (g << default_green_shift) |
356 (b << default_blue_shift);
366 const ScreenInfo *info = display->screenInfo(_screen);
367 XImage *im = XCreateImage(**display, info->visual(), info->depth(),
368 ZPixmap, 0, NULL, sf.size().width(),
369 sf.size().height(), 32, 0);
370 im->byte_order = endian;
374 im->data = (char*) bg;