| rev |
line source |
|
nuclear@0
|
1 #include <stdio.h>
|
|
nuclear@0
|
2 #include <stdlib.h>
|
|
nuclear@0
|
3 #include "vbe.h"
|
|
nuclear@0
|
4
|
|
nuclear@0
|
5 #define REALPTR(s, o) (void*)(((uint32_t)(s) << 4) + (uint32_t)(o))
|
|
nuclear@0
|
6 #define VBEPTR(x) REALPTR(((x) & 0xffff0000) >> 16, (x) & 0xffff)
|
|
nuclear@0
|
7 #define VBEPTR_SEG(x) (((x) & 0xffff0000) >> 16)
|
|
nuclear@0
|
8 #define VBEPTR_OFF(x) ((x) & 0xffff)
|
|
nuclear@0
|
9
|
|
nuclear@0
|
10 struct video_mode {
|
|
nuclear@0
|
11 int xres, yres, bpp;
|
|
nuclear@0
|
12 };
|
|
nuclear@0
|
13
|
|
nuclear@0
|
14 void sort_modes(struct video_mode *arr, int sz, int field);
|
|
nuclear@0
|
15 /*int modecmp(const void *pa, const void *pb);*/
|
|
nuclear@0
|
16
|
|
nuclear@0
|
17 int main(int argc, char **argv)
|
|
nuclear@0
|
18 {
|
|
nuclear@0
|
19 int i, nmodes;
|
|
nuclear@0
|
20 struct vbe_info *vbe;
|
|
nuclear@0
|
21 struct vbe_mode_info *mode;
|
|
nuclear@0
|
22 uint16_t *modes;
|
|
nuclear@0
|
23 struct video_mode *vmodes;
|
|
nuclear@0
|
24
|
|
nuclear@0
|
25 if(!(vbe = vbe_get_info())) {
|
|
nuclear@0
|
26 fprintf(stderr, "VBE not found\n");
|
|
nuclear@0
|
27 return 1;
|
|
nuclear@0
|
28 }
|
|
nuclear@0
|
29 printf("VBE version: %x.%x\n", vbe->version >> 8, vbe->version & 0xff);
|
|
nuclear@0
|
30 printf("Graphics adapter: %s, %s (%s)\n", VBEPTR(vbe->oem_vendor_name_ptr),
|
|
nuclear@0
|
31 VBEPTR(vbe->oem_product_name_ptr), VBEPTR(vbe->oem_product_rev_ptr));
|
|
nuclear@0
|
32 printf("Video memory: %dmb\n", vbe->total_mem << 6);
|
|
nuclear@0
|
33
|
|
nuclear@0
|
34 modes = VBEPTR(vbe->vid_mode_ptr);
|
|
nuclear@0
|
35 nmodes = 0;
|
|
nuclear@0
|
36 for(i=0; i<1024; i++) {
|
|
nuclear@0
|
37 if(modes[i] == 0xffff) break;
|
|
nuclear@0
|
38 nmodes++;
|
|
nuclear@0
|
39 }
|
|
nuclear@0
|
40 printf("%d video modes found:\n", nmodes);
|
|
nuclear@0
|
41
|
|
nuclear@0
|
42 if(!(vmodes = malloc(nmodes * sizeof *vmodes))) {
|
|
nuclear@0
|
43 fprintf(stderr, "failed to allocate video modes array\n");
|
|
nuclear@0
|
44 return 1;
|
|
nuclear@0
|
45 }
|
|
nuclear@0
|
46
|
|
nuclear@0
|
47 for(i=0; i<nmodes; i++) {
|
|
nuclear@0
|
48 if(!(mode = vbe_get_mode_info(modes[i]))) {
|
|
nuclear@0
|
49 fprintf(stderr, "failed to get mode %d info\n", i);
|
|
nuclear@0
|
50 }
|
|
nuclear@0
|
51 vmodes[i].xres = mode->xres;
|
|
nuclear@0
|
52 vmodes[i].yres = mode->yres;
|
|
nuclear@0
|
53 vmodes[i].bpp = mode->bpp;
|
|
nuclear@0
|
54 }
|
|
nuclear@0
|
55
|
|
nuclear@0
|
56 /*qsort(vmodes, nmodes, sizeof *vmodes, modecmp);*/
|
|
nuclear@0
|
57 sort_modes(vmodes, nmodes, 2);
|
|
nuclear@0
|
58 sort_modes(vmodes, nmodes, 1);
|
|
nuclear@0
|
59
|
|
nuclear@0
|
60 for(i=0; i<nmodes; i++) {
|
|
nuclear@0
|
61 if(i == 0 || vmodes[i].xres != vmodes[i - 1].xres ||
|
|
nuclear@0
|
62 vmodes[i].yres != vmodes[i - 1].yres) {
|
|
nuclear@0
|
63 printf("\n%4dx%d - depth:", vmodes[i].xres, vmodes[i].yres);
|
|
nuclear@0
|
64 }
|
|
nuclear@0
|
65 printf(" %d", vmodes[i].bpp);
|
|
nuclear@0
|
66 }
|
|
nuclear@0
|
67 putchar('\n');
|
|
nuclear@0
|
68
|
|
nuclear@0
|
69 free(vmodes);
|
|
nuclear@0
|
70 return 0;
|
|
nuclear@0
|
71 }
|
|
nuclear@0
|
72 /*
|
|
nuclear@0
|
73 int modecmp(const void *pa, const void *pb)
|
|
nuclear@0
|
74 {
|
|
nuclear@0
|
75 const struct video_mode *va = pa;
|
|
nuclear@0
|
76 const struct video_mode *vb = pb;
|
|
nuclear@0
|
77
|
|
nuclear@0
|
78 return va->xres * va->yres < vb->xres * vb->yres;
|
|
nuclear@0
|
79 }
|
|
nuclear@0
|
80 */
|
|
nuclear@0
|
81
|
|
nuclear@0
|
82 void sort_modes(struct video_mode *arr, int sz, int field)
|
|
nuclear@0
|
83 {
|
|
nuclear@0
|
84 int i, j;
|
|
nuclear@0
|
85 struct video_mode tmp;
|
|
nuclear@0
|
86
|
|
nuclear@0
|
87 for(i=0; i<sz; i++) {
|
|
nuclear@0
|
88 for(j=i+1; j<sz; j++) {
|
|
nuclear@0
|
89 if(((int*)(arr + i))[field] >= ((int*)(arr + j))[field]) {
|
|
nuclear@0
|
90 tmp = arr[i];
|
|
nuclear@0
|
91 arr[i] = arr[j];
|
|
nuclear@0
|
92 arr[j] = tmp;
|
|
nuclear@0
|
93 }
|
|
nuclear@0
|
94 }
|
|
nuclear@0
|
95 }
|
|
nuclear@0
|
96 }
|
