Felisp
84436a5ae0
http://my.svgalib.org/svgalib/svgalib-1.9.25.tar.gz http://my.svgalib.org/svgalib/
133 lines
4.2 KiB
C
133 lines
4.2 KiB
C
/*
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List the available VESA graphics and text modes.
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This program is in the public domain.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <sys/io.h>
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#include <sys/kd.h>
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#include <sys/stat.h>
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#include "lrmi.h"
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#include "vbe.h"
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struct
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{
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struct vbe_info_block *info;
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struct vbe_mode_info_block *mode;
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} vbe;
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int
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main(int argc, char *argv[]) {
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struct LRMI_regs r;
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int mode;
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if((argc!=2)||((mode=atoi(argv[1]))==0)){
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printf("usage: vbemodeinfo <mode>\n"
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"where <mode> is a vesa mode numder.\n"
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"use vbetest to list available modes\n\n");
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return 0;
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};
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if (!LRMI_init())
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return 1;
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vbe.info = LRMI_alloc_real(sizeof(struct vbe_info_block)
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+ sizeof(struct vbe_mode_info_block));
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if (vbe.info == NULL) {
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fprintf(stderr, "Can't alloc real mode memory\n");
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return 1;
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}
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vbe.mode = (struct vbe_mode_info_block *)(vbe.info + 1);
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/*
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Allow read/write to all IO ports
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*/
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ioperm(0, 0x400 , 1);
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iopl(3);
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memset(&r, 0, sizeof(r));
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r.eax = 0x4f00;
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r.es = (unsigned int)vbe.info >> 4;
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r.edi = 0;
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memcpy(vbe.info->vbe_signature, "VBE2", 4);
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if (!LRMI_int(0x10, &r)) {
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fprintf(stderr, "Can't get VESA info (vm86 failure)\n");
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return 1;
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}
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if ((r.eax & 0xffff) != 0x4f || strncmp(vbe.info->vbe_signature, "VESA", 4) != 0) {
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fprintf(stderr, "No VESA bios\n");
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return 1;
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}
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printf("VBE Version %x.%x\n",
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(int)(vbe.info->vbe_version >> 8) & 0xff,
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(int)vbe.info->vbe_version & 0xff);
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printf("%s\n",
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(char *)(vbe.info->oem_string_seg * 16 + vbe.info->oem_string_off));
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memset(&r, 0, sizeof(r));
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r.eax = 0x4f01;
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r.ecx = mode;
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r.es = (unsigned int)vbe.mode >> 4;
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r.edi = (unsigned int)vbe.mode & 0xf;
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if (!LRMI_int(0x10, &r)) {
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fprintf(stderr, "Can't get mode info (vm86 failure)\n");
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return 1;
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}
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printf("mode %i\n",mode);
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printf ("mode_attributes = %i\n", vbe.mode->mode_attributes);
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printf ("win_a_attributes = %i\n", vbe.mode->win_a_attributes);
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printf ("win_b_attributes = %i\n", vbe.mode->win_b_attributes);
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printf ("win_granularity = %i\n", vbe.mode->win_granularity);
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printf ("win_size = %i\n", vbe.mode->win_size);
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printf ("win_a_segment = %i\n", vbe.mode->win_a_segment);
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printf ("win_b_segment = %i\n", vbe.mode->win_b_segment);
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printf ("win_func_ptr_off = %i\n", vbe.mode->win_func_ptr_off);
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printf ("win_func_ptr_seg = %i\n", vbe.mode->win_func_ptr_seg);
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printf ("bytes_per_scanline = %i\n", vbe.mode->bytes_per_scanline);
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printf ("x_resolution = %i\n", vbe.mode->x_resolution);
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printf ("y_resolution = %i\n", vbe.mode->y_resolution);
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printf ("x_char_size = %i\n", vbe.mode->x_char_size);
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printf ("y_char_size = %i\n", vbe.mode->y_char_size);
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printf ("number_of_planes = %i\n", vbe.mode->number_of_planes);
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printf ("bits_per_pixel = %i\n", vbe.mode->bits_per_pixel);
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printf ("number_of_banks = %i\n", vbe.mode->number_of_banks);
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printf ("memory_model = %i\n", vbe.mode->memory_model);
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printf ("bank_size = %i\n", vbe.mode->bank_size);
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printf ("number_of_image_pages = %i\n", vbe.mode->number_of_image_pages);
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printf ("res1 = %i\n", vbe.mode->res1);
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printf ("red_mask_size = %i\n", vbe.mode->red_mask_size);
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printf ("red_field_position = %i\n", vbe.mode->red_field_position);
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printf ("green_mask_size = %i\n", vbe.mode->green_mask_size);
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printf ("green_field_position = %i\n", vbe.mode->green_field_position);
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printf ("blue_mask_size = %i\n", vbe.mode->blue_mask_size);
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printf ("blue_field_position = %i\n", vbe.mode->blue_field_position);
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printf ("rsvd_mask_size = %i\n", vbe.mode->rsvd_mask_size);
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printf ("rsvd_field_position = %i\n", vbe.mode->rsvd_field_position);
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printf ("direct_color_mode_info = %i\n", vbe.mode->direct_color_mode_info);
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printf ("phys_base_ptr = %i\n", vbe.mode->phys_base_ptr);
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printf ("offscreen_mem_offset = %i\n", vbe.mode->offscreen_mem_offset);
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printf ("offscreen_mem_size = %i\n", vbe.mode->offscreen_mem_size);
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LRMI_free_real(vbe.info);
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return 0;
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}
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