1 /*
2 * Copyright (c) 1997, 1999, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include "awt.h"
27 #include "awt_image.h"
28
29 extern "C" {
30 #include "img_colors.h"
31 } // extern "C"
32
33 char *programname = "awt_makecube";
34
35 unsigned char cube[LOOKUPSIZE * LOOKUPSIZE * LOOKUPSIZE];
36
37 unsigned char reds[256], greens[256], blues[256], indices[256];
38 int num_colors;
39
40 PALETTEENTRY sysPal[256];
41
42 int sys2cmap[256];
43 int cmap2sys[256];
44 int error[256];
45
46 int cmapsize = 0;
47 int virtcubesize = 0;
48 int makecube_verbose = 0;
49
50 void printPalette(char *label, HPALETTE hPal);
51
usage(char * errmsg)52 void usage(char *errmsg)
53 {
54 fprintf(stderr, "%s\n", errmsg);
55 fprintf(stderr, "usage: %s [-cmapsize N] [-cubesize N]\n", programname);
56 fprintf(stderr, "\t-cmapsize N set the number of colors to allocate\n");
57 fprintf(stderr, "\t in the colormap (2 <= N <= 256)\n");
58 fprintf(stderr, "\t-cubesize N set the size of the cube of colors to\n");
59 fprintf(stderr, " scan as potential entries in the cmap\n");
60 fprintf(stderr, " (N must be a power of 2 and <= 32)\n");
61 exit(1);
62 }
63
setsyscolor(int index,int red,int green,int blue)64 void setsyscolor(int index, int red, int green, int blue)
65 {
66 if (index >= 0) {
67 if (sysPal[index].peFlags != 0) {
68 usage("Internal error: system palette conflict");
69 }
70 } else {
71 for (int i = 0; i < 256; i++) {
72 if (sysPal[i].peFlags != 0) {
73 if (sysPal[i].peRed == red &&
74 sysPal[i].peGreen == green &&
75 sysPal[i].peBlue == blue)
76 {
77 // Already there. Ignore it.
78 return;
79 }
80 } else if (index < 0) {
81 index = i;
82 }
83 }
84 if (index < 0) {
85 usage("Internal error: ran out of system palette entries");
86 }
87 }
88 sysPal[index].peRed = red;
89 sysPal[index].peGreen = green;
90 sysPal[index].peBlue = blue;
91 sysPal[index].peFlags = 1;
92 }
93
addcmapcolor(int red,int green,int blue)94 void addcmapcolor(int red, int green, int blue)
95 {
96 for (int i = 0; i < num_colors; i++) {
97 if (red == reds[i] && green == greens[i] && blue == blues[i]) {
98 return;
99 }
100 }
101 if (num_colors >= cmapsize) {
102 usage("Internal error: more than cmapsize static colors defined");
103 }
104 reds[num_colors] = red;
105 greens[num_colors] = green;
106 blues[num_colors] = blue;
107 num_colors++;
108 }
109
main(int argc,char ** argv)110 int main(int argc, char **argv)
111 {
112 int i;
113
114 programname = argv[0];
115
116 for (i = 1; i < argc; i++) {
117 if (strcmp(argv[i], "-cmapsize") == 0) {
118 if (i++ >= argc) {
119 usage("no argument to -cmapsize");
120 }
121 cmapsize = atoi(argv[i]);
122 if (cmapsize <= 2 || cmapsize > 256) {
123 usage("colormap size must be between 2 and 256");
124 }
125 } else if (strcmp(argv[1], "-cubesize") == 0) {
126 if (i++ >= argc) {
127 usage("no argument to -cubesize");
128 }
129 virtcubesize = atoi(argv[i]);
130 if (virtcubesize == 0 ||
131 (virtcubesize & (virtcubesize - 1)) != 0 ||
132 virtcubesize > 32)
133 {
134 usage("cube size must by a power of 2 <= 32");
135 }
136 } else if (strcmp(argv[i], "-verbose") == 0) {
137 makecube_verbose = 1;
138 } else {
139 usage("unknown argument");
140 }
141 }
142
143 if (cmapsize == 0) {
144 cmapsize = CMAPSIZE;
145 }
146 if (virtcubesize == 0) {
147 virtcubesize = VIRTCUBESIZE;
148 }
149
150 if (0) { // For testing
151 HDC hDC = CreateDC("DISPLAY", NULL, NULL, NULL);
152 HPALETTE hPal = CreateHalftonePalette(hDC);
153 printPalette("Halftone palette for current display", hPal);
154 printPalette("Stock DEFAULT_PALETTE", (HPALETTE)GetStockObject(DEFAULT_PALETTE));
155 BITMAPINFOHEADER bmInfo = {
156 sizeof(BITMAPINFOHEADER), 1, 1, 1, 8, BI_RGB, 0, 1000, 1000, 0, 0
157 };
158 HBITMAP hBitmap = CreateDIBitmap(hDC, &bmInfo,
159 0, NULL, NULL, DIB_RGB_COLORS);
160 HDC hMemDC = CreateCompatibleDC(hDC);
161 SelectObject(hDC, hBitmap);
162 hPal = CreateHalftonePalette(hMemDC);
163 printPalette("Halftone palette for 8-bit DIBitmap", hPal);
164 exit(0);
165 }
166
167 // Allocate Windows static system colors.
168 {
169 PALETTEENTRY palEntries[256];
170 HPALETTE hPal = (HPALETTE)GetStockObject(DEFAULT_PALETTE);
171 int n = GetPaletteEntries(hPal, 0, 256, palEntries);
172 for (i = 0; i < n; i++) {
173 addcmapcolor(palEntries[i].peRed,
174 palEntries[i].peGreen,
175 palEntries[i].peBlue);
176 setsyscolor((i < n / 2) ? i : i + (256 - n),
177 palEntries[i].peRed,
178 palEntries[i].peGreen,
179 palEntries[i].peBlue);
180 }
181 }
182
183 // Allocate java.awt.Color constant colors.
184 addcmapcolor( 0, 0, 0); // black
185 addcmapcolor(255, 255, 255); // white
186 addcmapcolor(255, 0, 0); // red
187 addcmapcolor( 0, 255, 0); // green
188 addcmapcolor( 0, 0, 255); // blue
189 addcmapcolor(255, 255, 0); // yellow
190 addcmapcolor(255, 0, 255); // magenta
191 addcmapcolor( 0, 255, 255); // cyan
192 addcmapcolor(192, 192, 192); // lightGray
193 addcmapcolor(128, 128, 128); // gray
194 addcmapcolor( 64, 64, 64); // darkGray
195 addcmapcolor(255, 175, 175); // pink
196 addcmapcolor(255, 200, 0); // orange
197
198 img_makePalette(cmapsize, virtcubesize, LOOKUPSIZE,
199 50.0f, 250.0f,
200 num_colors, TRUE, reds, greens, blues, cube);
201
202 if (makecube_verbose) {
203 fprintf(stderr, "Calculated colormap:\n");
204 for (i = 0; i < cmapsize; i++) {
205 fprintf(stderr, "%3d:(%3d,%3d,%3d) ",
206 i, reds[i], greens[i], blues[i]);
207 }
208 fprintf(stderr, "\n");
209 }
210
211 // Now simulate adding the halftone palette to the system
212 // palette to get an idea of palette ordering.
213 {
214 int cubevals[6] = {0, 44, 86, 135, 192, 255};
215 for (int b = 0; b < 6; b++) {
216 for (int g = 0; g < 6; g++) {
217 for (int r = 0; r < 6; r++) {
218 setsyscolor(-1, cubevals[r], cubevals[g], cubevals[b]);
219 }
220 }
221 }
222 int grayvals[26] = { 0, 17, 24, 30, 37, 44, 52, 60,
223 68, 77, 86, 95, 105, 114, 125, 135,
224 146, 157, 168, 180, 192, 204, 216, 229,
225 242, 255 };
226 for (i = 0; i < 26; i++) {
227 setsyscolor(-1, grayvals[i], grayvals[i], grayvals[i]);
228 }
229 }
230
231 if (makecube_verbose) {
232 fprintf(stderr, "System palette with simulated halftone palette:\n");
233 for (i = 0; i < 256; i++) {
234 fprintf(stderr, "%3d:(%3d,%3d,%3d) ",
235 i, sysPal[i].peRed, sysPal[i].peGreen, sysPal[i].peBlue);
236 }
237 }
238
239 if (makecube_verbose) {
240 HDC hDC = CreateDC("DISPLAY", NULL, NULL, NULL);
241 HPALETTE hPal = CreateHalftonePalette(hDC);
242 SelectPalette(hDC, hPal, FALSE);
243 RealizePalette(hDC);
244 PALETTEENTRY palEntries[256];
245 int n = GetSystemPaletteEntries(hDC, 0, 256, palEntries);
246 fprintf(stderr,
247 "realized halftone palette reads back %d entries\n", n);
248 int broken = 0;
249 for (i = 0; i < 256; i++) {
250 char *msg1 = "";
251 char *msg2 = "";
252 if (palEntries[i].peRed != sysPal[i].peRed ||
253 palEntries[i].peGreen != sysPal[i].peGreen ||
254 palEntries[i].peBlue != sysPal[i].peBlue)
255 {
256 msg1 = "no sysPal match!";
257 if (sysPal[i].peFlags == 0) {
258 msg2 = "(OK)";
259 } else {
260 broken++;
261 }
262 } else if (sysPal[i].peFlags == 0) {
263 msg1 = "no sysPal entry...";
264 }
265 fprintf(stderr,
266 "palEntries[%3d] = (%3d, %3d, %3d), flags = %d %s %s\n",
267 i,
268 palEntries[i].peRed,
269 palEntries[i].peGreen,
270 palEntries[i].peBlue,
271 palEntries[i].peFlags, msg1, msg2);
272 }
273 fprintf(stderr, "%d broken entries\n", broken);
274 }
275
276 #if 0
277 #define BIGERROR (255 * 255 * 255)
278
279 for (i = 0; i < 256; i++) {
280 sys2cmap[i] = -1;
281 cmap2sys[i] = -1;
282 error[i] = BIGERROR;
283 // error[i] = -1 means cmap[i] is locked to cmap2sys[i]
284 // error[i] >= 0 means cmap[i] may lock to cmap2sys[i] on this run
285 }
286
287 int nummapped;
288 int totalmapped = 0;
289 do {
290 int maxerror = BIGERROR;
291 for (i = 0; i < 256; i++) {
292 if (sysPal[i].peFlags == 0 || sys2cmap[i] >= 0) {
293 continue;
294 }
295 int red = sysPal[i].peRed;
296 int green = sysPal[i].peGreen;
297 int blue = sysPal[i].peBlue;
298 int e = maxerror;
299 int ix = -1;
300 for (int j = 0; j < 256; j++) {
301 if (error[j] < 0) {
302 continue;
303 }
304 int t = red - reds[j];
305 int d = t * t;
306 t = green - greens[j];
307 d += t * t;
308 t = blue - blues[j];
309 d += t * t;
310 if (d < e) {
311 e = d;
312 ix = j;
313 }
314 }
315 if (ix >= 0) {
316 if (e < error[ix]) {
317 if (cmap2sys[ix] >= 0) {
318 // To be fair we will not accept any matches
319 // looser than this former match that we just
320 // displaced with a better match.
321 if (maxerror > error[ix]) {
322 maxerror = error[ix];
323 }
324 sys2cmap[cmap2sys[ix]] = -1;
325 }
326 error[ix] = e;
327 sys2cmap[i] = ix;
328 cmap2sys[ix] = i;
329 }
330 }
331 }
332 nummapped = 0;
333 for (i = 0; i < 256; i++) {
334 if (error[i] >= 0) {
335 if (error[i] >= maxerror) {
336 // Throw this one back to be fair to a displaced entry.
337 error[i] = BIGERROR;
338 sys2cmap[cmap2sys[i]] = -1;
339 cmap2sys[i] = -1;
340 continue;
341 }
342 error[i] = -1;
343 nummapped++;
344 }
345 }
346 totalmapped += nummapped;
347 if (makecube_verbose) {
348 fprintf(stderr, "%3d colors mapped (%3d total), maxerror = %d\n",
349 nummapped, totalmapped, maxerror);
350 }
351 } while (nummapped != 0);
352
353 for (i = 0; i < 256; i++) {
354 if (cmap2sys[i] < 0) {
355 for (int j = 0; j < 256; j++) {
356 if (sys2cmap[j] < 0) {
357 cmap2sys[i] = j;
358 sys2cmap[j] = i;
359 break;
360 }
361 }
362 if (j == 256) {
363 usage("Internal error: no unused system entry for cmap entry!\n");
364 }
365 }
366 }
367 #else
368 for (i = 0; i < 256; i++) {
369 if (i < 10) {
370 sys2cmap[i] = i;
371 cmap2sys[i] = i;
372 } else if (i < 20) {
373 sys2cmap[256 - 20 + i] = i;
374 cmap2sys[i] = 256 - 20 + i;
375 } else {
376 sys2cmap[i - 10] = i;
377 cmap2sys[i] = i - 10;
378 }
379 }
380 #endif
381
382 if (makecube_verbose) {
383 fprintf(stderr, "cmap2sys mapping: \n");
384 for (i = 0; i < 256; i++) {
385 fprintf(stderr, "%4d", cmap2sys[i]);
386 if (sys2cmap[cmap2sys[i]] != i) {
387 usage("Internal error: bad system palette back pointer!\n");
388 }
389 }
390 fprintf(stderr, "\n");
391 }
392
393 printf("unsigned char awt_reds[256] = {");
394 for (i = 0; i < 256; i++) {
395 if ((i & 0xf) == 0) printf("\n\t");
396 printf("%3d,", reds[sys2cmap[i]]);
397 }
398 printf("\n};\n");
399 printf("unsigned char awt_greens[256] = {");
400 for (i = 0; i < 256; i++) {
401 if ((i & 0xf) == 0) printf("\n\t");
402 printf("%3d,", greens[sys2cmap[i]]);
403 }
404 printf("\n};\n");
405 printf("unsigned char awt_blues[256] = {");
406 for (i = 0; i < 256; i++) {
407 if ((i & 0xf) == 0) printf("\n\t");
408 printf("%3d,", blues[sys2cmap[i]]);
409 }
410 printf("\n};\n");
411 fflush(stdout);
412 return 0;
413 }
414
printPalette(char * label,HPALETTE hPal)415 void printPalette(char *label, HPALETTE hPal)
416 {
417 PALETTEENTRY palEntries[256];
418 fprintf(stderr, "%s (0x%08x):\n", label, hPal);
419 int n = GetPaletteEntries(hPal, 0, 256, palEntries);
420 for (int i = 0; i < n; i++) {
421 fprintf(stderr, "palEntries[%3d] = (%3d, %3d, %3d), flags = %d\n",
422 i,
423 palEntries[i].peRed,
424 palEntries[i].peGreen,
425 palEntries[i].peBlue,
426 palEntries[i].peFlags);
427 }
428 }
429
430 /* This helps eliminate any dependence on javai.dll at build time. */
431 int
jio_fprintf(FILE * handle,const char * format,...)432 jio_fprintf (FILE *handle, const char *format, ...)
433 {
434 int len;
435
436 va_list args;
437 va_start(args, format);
438 len = vfprintf(handle, format, args);
439 va_end(args);
440
441 return len;
442 }
443