-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathbmplib.h
1244 lines (1167 loc) · 58.5 KB
/
bmplib.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#pragma once
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX_STR_LEN_OF_LOC 512
#define _NO_BMP_FILE printf("文件不存在\n")
#define _BMP_COMPRESSED printf("文件已压缩，暂不支持\n")
//thanks:https://zhuanlan.zhihu.com/p/122959774
//QBMP is suggested
// 文件信息头结构体
typedef struct HFILE
{
unsigned short bfType; // 19778，必须是BM字符串，对应的十六进制为0x4d42,十进制为19778，否则不是bmp格式文件
unsigned int bfSize; // 文件大小 以字节为单位(2-5字节)
unsigned short bfReserved1; // 保留，必须设置为0 (6-7字节)
unsigned short bfReserved2; // 保留，必须设置为0 (8-9字节)
unsigned int bfOffBits; // 从文件头到像素数据的偏移 (10-13字节)
};
//图像信息头结构体
typedef struct HBMP
{
unsigned int biSize; // 此结构体的大小 (14-17字节)
long biWidth; // 图像的宽 (18-21字节)
long biHeight; // 图像的高 (22-25字节)
unsigned short biPlanes; // 表示bmp图片的平面属，显然显示器只有一个平面，所以恒等于1 (26-27字节)
unsigned short biBitCount; // 一像素所占的位数，一般为24 (28-29字节)
unsigned int biCompression; // 说明图象数据压缩的类型，0为不压缩。 (30-33字节)
unsigned int biSizeImage; // 像素数据所占大小, 这个值应该等于上面文件头结构中bfSize-bfOffBits (34-37字节)
long biXPelsPerMeter; // 说明水平分辨率，用象素/米表示。一般为0 (38-41字节)
long biYPelsPerMeter; // 说明垂直分辨率，用象素/米表示。一般为0 (42-45字节)
unsigned int biClrUsed; // 说明位图实际使用的彩色表中的颜色索引数（设为0的话，则说明使用所有调色板项）。 (46-49字节)
unsigned int biClrImportant; // 说明对图象显示有重要影响的颜色索引的数目，如果是0，表示都重要。(50-53字节)
} ;
//24位图像素信息结构体,即调色板
typedef struct _PIX {
unsigned char rgbBlue; //该颜色的蓝色分量 (值范围为0-255)
unsigned char rgbGreen; //该颜色的绿色分量 (值范围为0-255)
unsigned char rgbRed; //该颜色的红色分量 (值范围为0-255)
unsigned char rgbReserved;// 保留，必须为0
};
typedef struct _XY {
int x;
int y;
};
typedef struct BMP {
_XY xy;
_PIX p;//值
BMP* xp;//横坐标下
BMP* xn;//横坐标上
BMP* yp;//纵坐标下
BMP* yn;//纵坐标上
};
typedef struct INFO {
HFILE headfile;
HBMP headinfo;
FILE* loc_of_file;
};
//bmp*是内存图片首相
typedef struct QBMP {
short hight;
short width;
char type;//type=0是灰度256；type=1是rgb；type=2是rgba；
unsigned char* bmp;
};
//max str==500,wasted
void __rewritebmp(char* str) {
int sum = 0;
int a = 0;
char ender[MAX_STR_LEN_OF_LOC];
for (; *(str + a) != '\0'; a++) {
ender[a+sum] = str[a];
if (*(str + a) == '\\') {
sum++;
ender[a + sum] = '\\';
}
}
ender[a + sum] = '\0';
strcpy(str, ender);
}
//set bmp ptr to file head
//将图片指针移到开头
inline void zero(BMP* bmp) {
if (bmp->xy.x != 0 || bmp->xy.y != 0) {//归零
int t0 = 0;
for (; t0 < bmp->xy.x; t0++) {
bmp = bmp->xn;
}
for (t0 = 0; t0 < bmp->xy.y; t0++) {
bmp = bmp->yn;
}
}
}
//open a bmp file & read.
//useage:
// FILE* picture=openbmp("/*your bmp file location*/");
// then use other func
// need to use "\\"
// 打开一个bmp文件。
// 用法：
// FILE* picture=openbmp("/*文件地址*/");
// 然后用其他函数
// 需要使用"\\"
//
inline INFO openbmp(const char* loc) {
INFO temp = {};
FILE* bmp = fopen(loc, "rb");
if (bmp == NULL) {
_NO_BMP_FILE;
return temp;//无文件
}
unsigned short fileType;
fread(&fileType, 1, sizeof(unsigned short), bmp);
if (fileType != 0x4d42) {
return temp;//非bmp1
}
fseek(bmp, 0, SEEK_SET);//(文件，偏移量（+），指针位置)
fread(&temp.headfile.bfType,2, 1, bmp);
fread(&temp.headfile.bfSize, 4, 1, bmp);
fread(&temp.headfile.bfReserved1, 2, 1, bmp);
fread(&temp.headfile.bfReserved2, 2, 1, bmp);
fread(&temp.headfile.bfOffBits, 2, 1, bmp);
//reserved
fseek(bmp, 2, SEEK_CUR);
fread(&temp.headinfo.biSize, 4, 1, bmp);
fread(&temp.headinfo.biWidth, 4, 1, bmp);
fread(&temp.headinfo.biHeight, 4, 1, bmp);
fread(&temp.headinfo.biPlanes, 2, 1, bmp);
fread(&temp.headinfo.biBitCount, 2, 1, bmp);
fread(&temp.headinfo.biCompression, 4, 1, bmp);
fread(&temp.headinfo.biSizeImage, 4, 1, bmp);
fread(&temp.headinfo.biXPelsPerMeter, 4, 1, bmp);
fread(&temp.headinfo.biYPelsPerMeter, 4, 1, bmp);
fread(&temp.headinfo.biClrUsed, 4, 1, bmp);
fread(&temp.headinfo.biClrImportant, 4, 1, bmp);
temp.loc_of_file = bmp;//54以后（包含）
if (temp.headinfo.biCompression != 0) {
_BMP_COMPRESSED;
}
return temp;
}
void _bmpmalloc0(BMP* temp0, INFO* bmp, int x,int y) {//首相，文件,x,y
if (x == 0 && y == 0) {
return;
}
BMP* now = temp0;
if (x == 0) {
while (1) {
if (now->yp == NULL) {//开新行
BMP* temp1 = (BMP*)malloc(sizeof(BMP));//当前操作为temp1，now是yn
now->yp = temp1;
temp1->yn = now;
temp1->xn = NULL;
temp1->yp = NULL;
temp1->xp = NULL;
temp1->xy.x = x;
temp1->xy.y = y;
FILE* temp2 = bmp->loc_of_file;
fseek(temp2, bmp->headinfo.biBitCount * 0.125 * (-x + (1+y) * bmp->headinfo.biWidth) * (-1), SEEK_END);
fread(&(temp1->p.rgbRed), 1, 1, temp2);
fread(&(temp1->p.rgbGreen), 1, 1, temp2);
fread(&(temp1->p.rgbBlue), 1, 1, temp2);
if (bmp->headinfo.biBitCount > 24)
fread(&(temp1->p.rgbReserved), 1, 1, temp2);
else
temp0->p.rgbReserved = 0xff;
return;
}
else {
now = now->yp;
}
}
}
else {
while (1) {
if (now->yp == NULL) {
break;
}
else {
now = now->yp;
}
}
}
int count = 0;
while (1) {
if (now->xp == NULL) {
if (bmp->headinfo.biWidth > count) {
BMP* temp1 = (BMP*)malloc(sizeof(BMP));//当前操作为temp1，now是xn
now->xp = temp1;
temp1->xn = now;
temp1->xy.x = x;
temp1->xy.y = y;
FILE* temp2 = bmp->loc_of_file;
fseek(temp2, bmp->headinfo.biBitCount *0.125 * (-x + (1 + y) * bmp->headinfo.biWidth)*(-1), SEEK_END);
fread(&(temp1->p.rgbRed), 1, 1, temp2);
fread(&(temp1->p.rgbGreen), 1, 1, temp2);
fread(&(temp1->p.rgbBlue), 1, 1, temp2);
if (bmp->headinfo.biBitCount > 24)
fread(&(temp1->p.rgbReserved), 1, 1, temp2);
else
temp0->p.rgbReserved = 0xff;
if (y == 0) {//首行
temp1->yn = NULL;
}
else {//非首航
temp1->yn = now->yn->xp;
now->yn->xp->yp = temp1;
}
temp1->xp = NULL;
temp1->yp = NULL;
return;
}
}
else {
now = now->xp;
count++;
}
}
}
//return a ptr to bmp start(0,0);
// need a ptr to INFO
// 4byte
// 返回图像的内存地址，用其他东西调用，信息为（0，0）
// 需要一个INFO的地址
// 4字节的颜色空间
//
BMP* bmpmalloc(INFO* bmp) {
BMP* temp0 = (BMP*)malloc(sizeof(BMP));
temp0->xy.x = 0;
temp0->xy.y = 0;
temp0->xn = NULL;
temp0->yn = NULL;
temp0->xp = NULL;
temp0->yp = NULL;
FILE* draw = bmp->loc_of_file;
fseek(draw, bmp->headinfo.biBitCount*(-1), SEEK_END);
fread(&(temp0->p.rgbRed), 1,1, draw);
fread(&(temp0->p.rgbGreen), 1, 1, draw);
fread(&(temp0->p.rgbBlue), 1, 1, draw);
if (bmp->headinfo.biBitCount > 24)
fread(&(temp0->p.rgbReserved), 1, 1, draw);
else
temp0->p.rgbReserved = 0xff;
int t0 = 0, t1 = 0;
for (; t0 < bmp->headinfo.biHeight; t0++) {//可多线程优化
for (t1 = 0; t1 < bmp->headinfo.biWidth; t1++) {
_bmpmalloc0(temp0, bmp, t1, t0);//xy
}
}
fclose(bmp->loc_of_file);
return temp0;
}
inline void _bmpfree0(BMP* bmp) {//整行
while ((bmp->xp) != NULL) {
bmp = bmp->xp;
free(bmp->xn);
}
free(bmp);
return;
}
//restall memory from an opened bmp
//回收内存
void bmpfree(BMP* bmp) {
if (bmp->xy.x != 0 || bmp->xy.y != 0) {//归零
int t0 = 0;
for (; t0 < bmp->xy.x; t0++) {
bmp = bmp->xn;
}
for (t0 = 0; t0 < bmp->xy.y; t0++) {
bmp = bmp->yn;
}
}
while ((bmp->yp) != NULL) {//此处多线程优化
bmp = bmp->yp;
_bmpfree0(bmp->yn);
}
_bmpfree0(bmp);
return;
}
// open a BMP file only, return as a BMP ptr
// useage:
// BMP* =bmpin(/*your file location*/);
// without "\\",just one is ok
// 仅打开一个bmp文件，返回BMP指针
// 不需要用双斜杠
//
BMP* bmpin(const char* loc) {
INFO bmp = openbmp(loc);
if (bmp.headfile.bfSize == 0) {
return 0;
}
return (bmpmalloc(&bmp));
}
inline void _printcolor(int r, int g, int b) {
printf("\033[38;5;%dm██", 36 * b + 6 * g + r + 16);
}
inline void _printgrey(unsigned char grey) {
printf("\033[38;5;%dm██", 232 + ((int)grey / 12));
}
//quick view in consul
// 在控制台快速查看
void quickecho(BMP* bmp) {
if (bmp == NULL) {
_NO_BMP_FILE;
return;
}
int t0=0;
for (; t0 < bmp->xy.x; t0++) {//兼容无边界png与中间png
bmp = bmp->xn;
}
for (t0 = 0; t0 < bmp->xy.y; t0++) {
bmp = bmp->yn;
}
BMP* tempx = bmp;
while ((bmp->yp) != NULL) {
if (bmp->yp->xy.y >= bmp->xy.y) {//没问题
tempx = bmp;
while ((tempx->xp) != NULL) {
if (tempx->xp->xy.x >= tempx->xy.x) {
_printcolor((int)(tempx->p.rgbRed) * 6 / 256, (int)(tempx->p.rgbGreen) * 6 / 256, (int)(tempx->p.rgbBlue) * 6 / 256);
tempx = tempx->xp;
}
else {//wbj
break;
}
}
bmp = bmp->yp;
printf("\n");
}
else {//无边界，退出时剩一行
break;
}
}
tempx = bmp;
while ((tempx->xp) != NULL) {
if (tempx->xp->xy.x >= tempx->xy.x) {
_printcolor((int)(tempx->p.rgbRed) * 6 / 256, (int)(tempx->p.rgbGreen) * 6 / 256, (int)(tempx->p.rgbBlue) * 6 / 256);
tempx = tempx->xp;
}
else {//wbj
break;
}
}
bmp = bmp->yp;
printf("\033[0m\n");
}
void showbinary(const char* loc) {
FILE* fp = fopen(loc, "rb");
int t0 = 0;
for (; t0 < 400; t0++) {
unsigned char lev;
fread(&lev, 1, 1, fp);
printf("%X ", lev);
}
}
//get (x,y)color
// returns an unsigned int of rgba, such as 0xff00aa00 means r=255,g=0,b=170,a=0
//获取图像XY的颜色值
//返回值是unsigned int，用法例如0xff00aa00，红=255，绿=0，蓝=170，透明度（或者没有）=0
unsigned int getcolor(BMP* bmp, int x, int y) {
if (bmp->xy.x != 0 || bmp->xy.y != 0) {//归零
int t0 = 0;
for (; t0 < bmp->xy.x; t0++) {
bmp = bmp->xn;
}
for (t0 = 0; t0 < bmp->xy.y; t0++) {
bmp = bmp->yn;
}
}
for (; x > 0; x--) {
bmp = bmp->xp;
}
for (; y > 0; y--) {
bmp = bmp->yp;
}
unsigned int ender=0;
ender += ((unsigned int)bmp->p.rgbRed << 24);
ender += ((unsigned int)bmp->p.rgbGreen << 16);
ender += ((unsigned int)bmp->p.rgbBlue << 8);
ender += (unsigned int)bmp->p.rgbRed;
return ender;
}
//get (x,y)red
//获取图像XY的红
char getred(BMP* bmp, int x, int y) {
if (bmp->xy.x != 0 || bmp->xy.y != 0) {//归零
int t0 = 0;
for (; t0 < bmp->xy.x; t0++) {
bmp = bmp->xn;
}
for (t0 = 0; t0 < bmp->xy.y; t0++) {
bmp = bmp->yn;
}
}
for (; x > 0; x--) {
bmp = bmp->xp;
}
for (; y > 0; y--) {
bmp = bmp->yp;
}
return (unsigned char)(bmp->p.rgbRed);
}
//get (x,y)green
//获取图像XY的绿
char getgreen(BMP* bmp, int x, int y) {
if (bmp->xy.x != 0 || bmp->xy.y != 0) {//归零
int t0 = 0;
for (; t0 < bmp->xy.x; t0++) {
bmp = bmp->xn;
}
for (t0 = 0; t0 < bmp->xy.y; t0++) {
bmp = bmp->yn;
}
}
for (; x > 0; x--) {
bmp = bmp->xp;
}
for (; y > 0; y--) {
bmp = bmp->yp;
}
return (unsigned char)(bmp->p.rgbGreen);
}
//get (x,y)blue
//获取图像XY的蓝
char getblue(BMP* bmp, int x, int y) {
if (bmp->xy.x != 0 || bmp->xy.y != 0) {//归零
int t0 = 0;
for (; t0 < bmp->xy.x; t0++) {
bmp = bmp->xn;
}
for (t0 = 0; t0 < bmp->xy.y; t0++) {
bmp = bmp->yn;
}
}
for (; x > 0; x--) {
bmp = bmp->xp;
}
for (; y > 0; y--) {
bmp = bmp->yp;
}
return (unsigned char)(bmp->p.rgbBlue);
}
//get (x,y)alpha
//获取图像XY的透明度（无透明度就是0xff）
char getalpha(BMP* bmp, int x, int y) {
if (bmp->xy.x != 0 || bmp->xy.y != 0) {//归零
int t0 = 0;
for (; t0 < bmp->xy.x; t0++) {
bmp = bmp->xn;
}
for (t0 = 0; t0 < bmp->xy.y; t0++) {
bmp = bmp->yn;
}
}
for (; x > 0; x--) {
bmp = bmp->xp;
}
for (; y > 0; y--) {
bmp = bmp->yp;
}
return (unsigned char)(bmp->p.rgbReserved);
}
void _bmpoutrgba0(BMP* bmp, int num,FILE* file){//传入是图片x的最末尾，反着写
int t0 = num;
BMP* temp = bmp;
while (t0--) {
fwrite(&temp->p.rgbRed, 1, 1, file);
fwrite(&temp->p.rgbGreen, 1, 1, file);
fwrite(&temp->p.rgbBlue, 1, 1, file);
fwrite(&temp->p.rgbReserved, 1, 1, file);
temp = temp->xn;
}
}
//create an unimpressed BMP file.
//usage:
// bmpout(/*your target location*/,/*your BMP image ptr*/);
// NULL location will atuomatically set to current dir
// 创建一个未压缩的bmp文件
// 方法：
// bmpout(/*路径*/,/*BMP图片指针*/);
// 路径为NULL时，默认为当前程序目录
void bmpoutrgba(const char* location, BMP* bmp) {
BMP* temp = bmp;
if (temp->xy.x != 0 || temp->xy.y != 0) {//归零
int t0 = 0;
for (; t0 < bmp->xy.x; t0++) {
bmp = bmp->xn;
}
for (t0 = 0; t0 < bmp->xy.y; t0++) {
bmp = bmp->yn;
}
}
int t0 = 1, t1 = 1;//xy
while (1) {
if (bmp->xp == NULL) {//end
break;
}
else if (bmp->xp->xy.x <= bmp->xy.x) {//end
break;
}
else {
t0++;
bmp = bmp->xp;
}
}
while (1) {
if (bmp->yp == NULL) {//end
break;
}
else if (bmp->yp->xy.y <= bmp->xy.y) {//end
break;
}
else {
t1++;
bmp = bmp->yp;
}
}
unsigned int biSize = 40; // 此结构体的大小 (14-17字节)
long biWidth = t0; // 图像的宽 (18-21字节)
long biHeight = t1; // 图像的高 (22-25字节)
unsigned short biPlanes = 1; // 表示bmp图片的平面属，显然显示器只有一个平面，所以恒等于1 (26-27字节)
unsigned short biBitCount = 32; // 一像素所占的位数，一般为24 (28-29字节)
unsigned int biCompression = 0; // 说明图象数据压缩的类型，0为不压缩。 (30-33字节)
unsigned int biSizeImage = t1 * t0 * 32; // 像素数据所占大小, 这个值应该等于上面文件头结构中bfSize-bfOffBits (34-37字节)
long biXPelsPerMeter = 4096; // 说明水平分辨率，用象素/米表示。一般为0 (38-41字节)
long biYPelsPerMeter = 4096 * t1 / t0; // 说明垂直分辨率，用象素/米表示。一般为0 (42-45字节)
unsigned int biClrUsed = 0; // 说明位图实际使用的彩色表中的颜色索引数（设为0的话，则说明使用所有调色板项）。 (46-49字节)
unsigned int biClrImportant = 0; // 说明对图象显示有重要影响的颜色索引的数目，如果是0，表示都重要。(50-53字节)
unsigned short bfType = 19778; // 19778，必须是BM字符串，对应的十六进制为0x4d42,十进制为19778，否则不是bmp格式文件
unsigned int bfSize = 54 + biSizeImage;// 文件大小 以字节为单位(2-5字节)
unsigned short bfReserved1 = 0; // 保留，必须设置为0 (6-7字节)
unsigned short bfReserved2 = 0; // 保留，必须设置为0 (8-9字节)
unsigned int bfOffBits = 54; // 从文件头到像素数据的偏移 (10-13字节)
FILE* file = fopen(location, "wb");
fwrite(&bfType, sizeof(bfType), 1, file);
fwrite(&bfSize, sizeof(bfSize), 1, file);
fwrite(&bfReserved1, sizeof(bfReserved1), 1, file);
fwrite(&bfReserved2, sizeof(bfReserved2), 1, file);
fwrite(&bfOffBits, sizeof(bfOffBits), 1, file);
fwrite(&biSize, sizeof(biSize), 1, file);
fwrite(&biWidth, sizeof(biWidth), 1, file);
fwrite(&biHeight, sizeof(biHeight), 1, file);
fwrite(&biPlanes, sizeof(biPlanes), 1, file);
fwrite(&biBitCount, sizeof(biBitCount), 1, file);
fwrite(&biCompression, sizeof(biCompression), 1, file);
fwrite(&biSizeImage, sizeof(biSizeImage), 1, file);
fwrite(&biXPelsPerMeter, sizeof(biXPelsPerMeter), 1, file);
fwrite(&biYPelsPerMeter, sizeof(biYPelsPerMeter), 1, file);
fwrite(&biClrUsed, sizeof(biClrUsed), 1, file);
fwrite(&biClrImportant, sizeof(biClrImportant), 1, file);
while (t1--) {
_bmpoutrgba0(bmp, t0,file);
bmp = bmp->yn;
}
fclose(file);
}
//create a limitless bmp file
// for example (0,0) is neighour to (0,/*end*/)
// 创建无边界bmp文件
// 比如（0，0）与（0，末尾）相邻
void bmplilitless(BMP* bmp) {
BMP* temp = bmp;//const bmp =0,0
if (temp->xy.x != 0 || temp->xy.y != 0) {//归零
int t0 = 0;
for (; t0 < bmp->xy.x; t0++) {
bmp = bmp->xn;
}
for (t0 = 0; t0 < bmp->xy.y; t0++) {
bmp = bmp->yn;
}
}
BMP* len0=bmp;// ****************************************
while (len0->xp != NULL) {
if (len0->xp->xy.x <= len0->xy.x) {
break;
}
len0 = len0->xp;
}
BMP* len1 = bmp;
while ((len1->yp) != NULL && (len0->yp) != NULL) {
if (len1->yp->xy.y <= len1->xy.y || len0->yp->xy.y <= len0->xy.y) {
break;
}
len0->xp = len1;
len1->xn = len0;
len1 = len1->yp;
len0 = len0->yp;
}
len0->xp = len1;
len1->xn = len0;//quit len0
BMP* hig0 = bmp;
while ((len1->xp) != NULL && (hig0->xp) != NULL) {
if (len1->xp->xy.x <= len1->xy.x || hig0->xp->xy.x <= hig0->xy.x) {
break;
}
len1->yp = hig0;
hig0->yn = len1;
len1 = len1->xp;
hig0 = hig0->xp;
}
len1->yp = hig0;
hig0->yn = len1;
}
void qbmpecho(QBMP* qbmp) {
if (qbmp == NULL)return;
if (qbmp->bmp == NULL)return;
int t0 = 0,t1;
if (qbmp->type == 1) {
for (; t0 < qbmp->hight; t0++) {
for (t1 = 0; t1 < qbmp->width; t1++) {
_printcolor((int)(*(qbmp->bmp +3*(t1 + t0 * qbmp->width))) * 6 / 256, (int)(*(qbmp->bmp +1+ 3 * (t1 + t0 * qbmp->width))) * 6 / 256, (int)(*(qbmp->bmp + 2+3 * (t1 + t0 * qbmp->width))) * 6 / 256);
}
printf("\n");
}
}
else if (qbmp->type == 0) {
for (; t0 < qbmp->hight; t0++) {
for (t1 = 0; t1 < qbmp->width; t1++) {
_printgrey(*(qbmp->bmp + t1 + t0 * qbmp->width));
}
printf("\n");
}
}
else if (qbmp->type == 2) {//目前与rgb完全一样，
for (; t0 < qbmp->hight; t0++) {
for (t1 = 0; t1 < qbmp->width; t1++) {
_printcolor((int)(*(qbmp->bmp + 4 * (t1 + t0 * qbmp->width))) * 6 / 256, (int)(*(qbmp->bmp + 1 + 4 * (t1 + t0 * qbmp->width))) * 6 / 256, (int)(*(qbmp->bmp + 2 + 4 * (t1 + t0 * qbmp->width))) * 6 / 256);
}
printf("\n");
}
}
}
//malloc in a more efficent way
//but requires suffitient ram space
// use qbmpfree() to free
//以更快速、更精简的方式导入内存
//但是对内存容量有一定的要求
//用qbmpfree（）释放内存
QBMP* qbmpmalloc(INFO* bmp) {
QBMP* output = (QBMP*)malloc(sizeof(QBMP));
output->hight = bmp->headinfo.biHeight;
output->width = bmp->headinfo.biWidth;
fseek(bmp->loc_of_file, bmp->headfile.bfOffBits, SEEK_SET);//像素数据开头
if (bmp->headinfo.biBitCount == 8) {//原生灰图
output->bmp = (unsigned char*)malloc(sizeof(unsigned char) * output->hight * output->width);//b
int temph = 0;
output->type = 0;
for (; temph < output->hight; temph++) {
int tempw = 0;
for (; tempw < output->width; tempw++) {
fseek(bmp->loc_of_file, -1 * (-tempw + (temph + 1) * output->width), SEEK_END);//像素数据
fread(output->bmp +(tempw + temph * output->width), 1, 1, bmp->loc_of_file);
}
}
}
else if(bmp->headinfo.biBitCount == 32){
output->bmp = (unsigned char*)malloc(sizeof(unsigned char) * output->hight * output->width * 4);//rgba
int temph = 0;
output->type = 2;
for (; temph < output->hight; temph++) {
int tempw = 0;
for (; tempw < output->width; tempw++) {
fseek(bmp->loc_of_file, -4 * (-tempw + (temph + 1) * output->width), SEEK_END);//像素数据
fread(output->bmp + 4 * (tempw + temph * output->width), 1, 1, bmp->loc_of_file);
fread(output->bmp + 1 + 4 * (tempw + temph * output->width), 1, 1, bmp->loc_of_file);
fread(output->bmp + 2 + 4 * (tempw + temph * output->width), 1, 1, bmp->loc_of_file);
fread(output->bmp + 3 + 4 * (tempw + temph * output->width), 1, 1, bmp->loc_of_file);
}
}
}
else {// 普通图片
output->bmp = (unsigned char*)malloc(sizeof(unsigned char) * output->hight * output->width * 3);//rgb
int temph = 0;
output->type = 1;
for (; temph <output->hight; temph++) {
int tempw = 0;
for (; tempw <output->width; tempw++) {
fseek(bmp->loc_of_file, -3*(-tempw + (temph+1) * output->width), SEEK_END);//像素数据
fread(output->bmp + 3 * (tempw + temph * output->width), 1, 1, bmp->loc_of_file);
fread(output->bmp + 1 + 3 * (tempw + temph * output->width), 1, 1, bmp->loc_of_file);
fread(output->bmp + 2 + 3 * (tempw + temph * output->width), 1, 1, bmp->loc_of_file);
}
}
}
return output;
}
inline void qbmpfree(QBMP* qbmp) {
free(qbmp->bmp);// ******************同样的内存溢出问题，暂不解决*********************
qbmp->bmp = NULL;
free(qbmp);
return;
}
//reform into grey bmp
//重组为灰色图像
//use qbmpfree()
QBMP* gbmpmalloc(INFO* bmp) {
QBMP* output = (QBMP*)malloc(sizeof(QBMP));
output->hight = bmp->headinfo.biHeight;
output->width = bmp->headinfo.biWidth;
fseek(bmp->loc_of_file, bmp->headfile.bfOffBits, SEEK_SET);//像素数据开头
unsigned char r, g, b, a;
output->bmp = (unsigned char*)malloc(sizeof(unsigned char) * output->hight * output->width);
if (bmp->headinfo.biBitCount == 8) {//原生灰图
output->bmp = (unsigned char*)malloc(sizeof(unsigned char) * output->hight * output->width);//b
int temph = 0;
output->type = 0;
for (; temph < output->hight; temph++) {
int tempw = 0;
for (; tempw < output->width; tempw++) {
fseek(bmp->loc_of_file, -1 * (-tempw + (temph + 1) * output->width), SEEK_END);//像素数据
fread(output->bmp + (tempw + temph * output->width), 1, 1, bmp->loc_of_file);
}
}
}
else if (bmp->headinfo.biBitCount == 32) {
output->bmp = (unsigned char*)malloc(sizeof(unsigned char) * output->hight * output->width);//rgba
int temph = 0;
output->type = 0;
for (; temph < output->hight; temph++) {
int tempw = 0;
for (; tempw < output->width; tempw++) {
fseek(bmp->loc_of_file, -4 * (-tempw + (temph + 1) * output->width), SEEK_END);//像素数据（丢失alpha）
fread(&r, 1, 1, bmp->loc_of_file);
fread(&g, 1, 1, bmp->loc_of_file);
fread(&b, 1, 1, bmp->loc_of_file);
fread(&a, 1, 1, bmp->loc_of_file);
*(output->bmp + (tempw + temph * output->width)) = (unsigned char)((r + g + b) / 3);
}
}
}
else {// 普通图片
output->bmp = (unsigned char*)malloc(sizeof(unsigned char) * output->hight * output->width * 3);//rgb
int temph = 0;
output->type = 0;
for (; temph < output->hight; temph++) {
int tempw = 0;
for (; tempw < output->width; tempw++) {
fseek(bmp->loc_of_file, -3 * (-tempw + (temph + 1) * output->width), SEEK_END);//像素数据 **********************wenti******************
fread(&r, 1, 1, bmp->loc_of_file);
fread(&g, 1, 1, bmp->loc_of_file);
fread(&b, 1, 1, bmp->loc_of_file);
*(output->bmp + (tempw + temph * output->width)) = ((int)(r + g + b-1) / 3);
}
}
}
return output;
}
QBMP* qbmpin(const char* loc) {
INFO bmp = openbmp(loc);
if (bmp.headfile.bfSize == 0) {
return 0;
}
QBMP* ender = qbmpmalloc(&bmp);
fclose(bmp.loc_of_file);
return (ender);
}
QBMP* gbmpin(const char* loc) {
INFO bmp = openbmp(loc);
if (bmp.headfile.bfSize == 0) {
return 0;
}
QBMP* ender = gbmpmalloc(&bmp);
fclose(bmp.loc_of_file);
return (ender);
}
//save a qbmp file in location as xxx.bmp with rgba
//将qbmp保存到location地址，xxx.bmp，有rgba通道
void qbmpoutrgba(const char* location, QBMP* qbmp) {
unsigned int biSize = 40; // 此结构体的大小 (14-17字节)
long biWidth = qbmp->width; // 图像的宽 (18-21字节)
long biHeight = qbmp->hight; // 图像的高 (22-25字节)
unsigned short biPlanes = 1; // 表示bmp图片的平面属，显然显示器只有一个平面，所以恒等于1 (26-27字节)
unsigned short biBitCount = 32; // 一像素所占的位数，一般为24 (28-29字节)
unsigned int biCompression = 0; // 说明图象数据压缩的类型，0为不压缩。 (30-33字节)
unsigned int biSizeImage = biWidth * biHeight * 32; // 像素数据所占大小, 这个值应该等于上面文件头结构中bfSize-bfOffBits (34-37字节)
long biXPelsPerMeter = 4096; // 说明水平分辨率，用象素/米表示。一般为0 (38-41字节)
long biYPelsPerMeter = 4096 * biHeight / biWidth; // 说明垂直分辨率，用象素/米表示。一般为0 (42-45字节)
unsigned int biClrUsed = 0; // 说明位图实际使用的彩色表中的颜色索引数（设为0的话，则说明使用所有调色板项）。 (46-49字节)
unsigned int biClrImportant = 0; // 说明对图象显示有重要影响的颜色索引的数目，如果是0，表示都重要。(50-53字节)
unsigned short bfType = 19778; // 19778，必须是BM字符串，对应的十六进制为0x4d42,十进制为19778，否则不是bmp格式文件
unsigned int bfSize = 54 + biSizeImage;// 文件大小 以字节为单位(2-5字节)
unsigned short bfReserved1 = 0; // 保留，必须设置为0 (6-7字节)
unsigned short bfReserved2 = 0; // 保留，必须设置为0 (8-9字节)
unsigned int bfOffBits = 54; // 从文件头到像素数据的偏移 (10-13字节)
FILE* file = fopen(location, "wb");
fwrite(&bfType, sizeof(bfType), 1, file);
fwrite(&bfSize, sizeof(bfSize), 1, file);
fwrite(&bfReserved1, sizeof(bfReserved1), 1, file);
fwrite(&bfReserved2, sizeof(bfReserved2), 1, file);
fwrite(&bfOffBits, sizeof(bfOffBits), 1, file);
fwrite(&biSize, sizeof(biSize), 1, file);
fwrite(&biWidth, sizeof(biWidth), 1, file);
fwrite(&biHeight, sizeof(biHeight), 1, file);
fwrite(&biPlanes, sizeof(biPlanes), 1, file);
fwrite(&biBitCount, sizeof(biBitCount), 1, file);
fwrite(&biCompression, sizeof(biCompression), 1, file);
fwrite(&biSizeImage, sizeof(biSizeImage), 1, file);
fwrite(&biXPelsPerMeter, sizeof(biXPelsPerMeter), 1, file);
fwrite(&biYPelsPerMeter, sizeof(biYPelsPerMeter), 1, file);
fwrite(&biClrUsed, sizeof(biClrUsed), 1, file);
fwrite(&biClrImportant, sizeof(biClrImportant), 1, file);
int t1 = biHeight - 1, t0;
for (; t1 > -1; t1--) {
for (t0 = 0; t0 < biWidth; t0++) {
fwrite(qbmp->bmp + 4 * (t0 + t1 * biWidth), 1, 1, file);
fwrite(qbmp->bmp + 1 + 4 * (t0 + t1 * biWidth), 1, 1, file);
fwrite(qbmp->bmp + 2 + 4 * (t0 + t1 * biWidth), 1, 1, file);
fwrite(qbmp->bmp + 3 + 4 * (t0 + t1 * biWidth), 1, 1, file);
}
}
fclose(file);
}
//# causion # the function will replace the original qbmp file
//#注意#此函数会替换输入QBMP的内存
//regulate a qbmp file to an ideal size
//useage: QBMP* new_qbmp_file=regulate(old qbmp location , target width, target hight);
//将qbmp大小格式化
//用法：QBMP* 新qbmp内存=regulate（待转化的qbmp地址，目标宽度，目标高度）;
void regulate(QBMP* old, unsigned int width, unsigned int hight) {
QBMP* output = (QBMP*)malloc(sizeof(QBMP));
output->hight = hight-1;
output->width = width-1;
output->type = old->type;
if (output->type == 1) {
output->bmp = (unsigned char*)malloc(hight * width * 3 * sizeof(unsigned char));
}
else if (output->type == 2) {
output->bmp = (unsigned char*)malloc(hight * width * 4 * sizeof(unsigned char));
}
else if (output->type == 0) {
output->bmp = (unsigned char*)malloc(hight * width * sizeof(unsigned char));
}
else return;
double h, w, crossh, crossw;
unsigned int temp0 = 0, temp1;
for (; temp0 < hight; temp0++) {
h = (double)temp0 / (double)hight;
for (temp1 = 0; temp1 < width; temp1++) {
w = (double)temp1 / (double)width;
crossw = (w * old->width) - (int)(w * old->width);
crossh = (h * old->hight) - (int)(h * old->hight);
if (output->type == 1) {//rgb
*(output->bmp + 3 * (temp1 + temp0 * output->width)) = (unsigned int)((1. - crossw) * (1 - crossh) * *(old->bmp + 3 * ((int)(w * old->width) + (old->width * (int)(h * old->hight)))) + crossh * (1 - crossw) * (*(old->bmp + 3 * ((int)(w * old->width) + old->width * (1 + (int)(h * old->hight))))) + crossw * (1 - crossh) * (*(old->bmp + 3 * ((int)(w * old->width) + 1 + old->width * ((int)(h * old->hight))))) + crossh * crossw * (*(old->bmp + 3 * ((int)(w * old->width) + 1 + old->width * (1 + (int)(h * old->hight))))));//r
*(output->bmp + 1 + 3 * (temp1 + temp0 * output->width)) = (unsigned int)((1. - crossw) * (1 - crossh) * *(old->bmp + 1 + 3 * ((int)(w * old->width) + (old->width * (int)(h * old->hight)))) + crossh * (1 - crossw) * (*(old->bmp + 1 + 3 * ((int)(w * old->width) + old->width * (1 + (int)(h * old->hight))))) + crossw * (1 - crossh) * (*(old->bmp + 1 + 3 * ((int)(w * old->width) + 1 + old->width * ((int)(h * old->hight))))) + crossh * crossw * (*(old->bmp + 1 + 3 * ((int)(w * old->width) + 1 + old->width * (1 + (int)(h * old->hight))))));//g
*(output->bmp + 2 + 3 * (temp1 + temp0 * output->width)) = (unsigned int)((1. - crossw) * (1 - crossh) * *(old->bmp + 2 + 3 * ((int)(w * old->width) + (old->width * (int)(h * old->hight)))) + crossh * (1 - crossw) * (*(old->bmp + 2 + 3 * ((int)(w * old->width) + old->width * (1 + (int)(h * old->hight))))) + crossw * (1 - crossh) * (*(old->bmp + 2 + 3 * ((int)(w * old->width) + 1 + old->width * ((int)(h * old->hight))))) + crossh * crossw * (*(old->bmp + 2 + 3 * ((int)(w * old->width) + 1 + old->width * (1 + (int)(h * old->hight))))));//b
}
else if (output->type == 2) {
*(output->bmp + 4 * (temp1 + temp0 * output->width)) = (unsigned int)((1. - crossw) * (1 - crossh) * *(old->bmp + 4 * ((int)(w * old->width) + (old->width * (int)(h * old->hight)))) + crossh * (1 - crossw) * (*(old->bmp + 4 * ((int)(w * old->width) + old->width * (1 + (int)(h * old->hight))))) + crossw * (1 - crossh) * (*(old->bmp + 4 * ((int)(w * old->width) + 1 + old->width * ((int)(h * old->hight))))) + crossh * crossw * (*(old->bmp + 4 * ((int)(w * old->width) + 1 + old->width * (1 + (int)(h * old->hight))))));//r
*(output->bmp + 1 + 4 * (temp1 + temp0 * output->width)) = (unsigned int)((1. - crossw) * (1 - crossh) * *(old->bmp + 1 + 4 * ((int)(w * old->width) + (old->width * (int)(h * old->hight)))) + crossh * (1 - crossw) * (*(old->bmp + 1 + 4 * ((int)(w * old->width) + old->width * (1 + (int)(h * old->hight))))) + crossw * (1 - crossh) * (*(old->bmp + 1 + 4 * ((int)(w * old->width) + 1 + old->width * ((int)(h * old->hight))))) + crossh * crossw * (*(old->bmp + 1 + 4 * ((int)(w * old->width) + 1 + old->width * (1 + (int)(h * old->hight))))));//g
*(output->bmp + 2 + 4 * (temp1 + temp0 * output->width)) = (unsigned int)((1. - crossw) * (1 - crossh) * *(old->bmp + 2 + 4 * ((int)(w * old->width) + (old->width * (int)(h * old->hight)))) + crossh * (1 - crossw) * (*(old->bmp + 2 + 4 * ((int)(w * old->width) + old->width * (1 + (int)(h * old->hight))))) + crossw * (1 - crossh) * (*(old->bmp + 2 + 4 * ((int)(w * old->width) + 1 + old->width * ((int)(h * old->hight))))) + crossh * crossw * (*(old->bmp + 2 + 4 * ((int)(w * old->width) + 1 + old->width * (1 + (int)(h * old->hight))))));//b
*(output->bmp + 3 + 4 * (temp1 + temp0 * output->width)) = (unsigned int)((1. - crossw) * (1 - crossh) * *(old->bmp + 3 + 4 * ((int)(w * old->width) + (old->width * (int)(h * old->hight)))) + crossh * (1 - crossw) * (*(old->bmp + 3 + 4 * ((int)(w * old->width) + old->width * (1 + (int)(h * old->hight))))) + crossw * (1 - crossh) * (*(old->bmp + 3 + 4 * ((int)(w * old->width) + 1 + old->width * ((int)(h * old->hight))))) + crossh * crossw * (*(old->bmp + 3 + 4 * ((int)(w * old->width) + 1 + old->width * (1 + (int)(h * old->hight))))));//b
}
else if (output->type == 0) {
*(output->bmp +(temp1 + temp0 * output->width)) = (unsigned int)((1. - crossw) * (1 - crossh) * *(old->bmp + ((int)(w * old->width) + (old->width * (int)(h * old->hight)))) + crossh * (1 - crossw) * (*(old->bmp + ((int)(w * old->width) + old->width * (1 + (int)(h * old->hight))))) + crossw * (1 - crossh) * (*(old->bmp + ((int)(w * old->width) + 1 + old->width * ((int)(h * old->hight))))) + crossh * crossw * (*(old->bmp + ((int)(w * old->width) + 1 + old->width * (1 + (int)(h * old->hight))))));//r
}
}
}
//replace;
old->hight = output->hight;
old->width = output->width;
free(old->bmp);
old->bmp = output->bmp;
free(output);
return;
}
//************封装***************
//待添加的功能：某点的亮度，优化getred等函数，直接借用xy值的正负移动临时指针，不要归零浪费算力，猜测需要递归
// 两张图片合成一张幻影坦克的BMP版本(太难了，延期！)。
// |
// |
//shit mountain X 1 vvv
// v
//first one is the photo shown in black background while the second is the white background
// remember to free this BMP file, using freebmp()
//第一个是黑背景图，第二个是白背景图
//记得用freebmp()释放内存
QBMP* qmirage_tank(QBMP* bmpb, QBMP* bmpw) {
/*
1号公式：上半色深是白底，下半是黑底
128+cw/2=ca+256(1-a)(1)
cb/2=ca
解：
a=128+(cb-cw)/2(256)
c=256cb/(256+cb-cw)
三通道共用alpha，所以选a（rgb）里面颜色最深的作为alpha的基准
*/
unsigned char a;
unsigned char c;
QBMP* output = (QBMP*)malloc(sizeof(QBMP));
output->type = 2;
unsigned char bsizec, wsizec;
int ctempr, ctempg, ctempb;//出问题就转int
//格式初始化
if (bmpb->type == 0) {
bsizec = 1;
}
else if (bmpb->type == 1) {
bsizec = 3;
}
else if (bmpb->type == 2) {
bsizec = 4;
}
if (bmpw->type == 0) {
wsizec = 1;
}
else if (bmpw->type == 1) {
wsizec = 3;
}
else if (bmpw->type == 2) {
wsizec = 4;
}
if (bmpw->width >= bmpb->width) {//w is larger
output->width = bmpw->width;
output->hight = bmpw->hight;
}
else {
output->width = bmpb->width;
output->hight = bmpb->hight;
}
//算法 **********************ac反了,用regulate重构**********************
// 貌似b层颜色是反的
if (bsizec == 1) {
if (wsizec == 1) {//黑白&&黑白
if (bmpw->width >= bmpb->width) {//w is larger
output->bmp = (unsigned char*)malloc(4 * output->hight * output->width);
int temp0 = 0, temp1;
float soothx, soothy;
for (; temp0 < output->hight; temp0++) {
for (temp1 = 0; temp1 < output->width; temp1++) {
soothx = (bmpb->width * (float)temp1 / output->width) - (bmpb->width * (int)temp1 / output->width);//c(x)=(1-soothx)now+soothx(now+1) same as y
soothy = (bmpb->hight * (float)temp0 / output->hight) - (bmpb->hight * (int)temp0 / output->hight);
//alpha
ctempr = (1 - soothx - soothy) * (*(bmpb->bmp + bsizec * (temp1 + temp0 * bmpb->width))) + soothx * (*(bmpb->bmp + bsizec * (1 + temp1 + temp0 * bmpb->width))) + soothy * (*(bmpb->bmp + bsizec * (temp1 + (1 + temp0) * bmpb->width)));//抗锯齿r