pavi.c

#include "common.h"
#include "lib/stdio.h"
#include "io/tty.h"
#include "io/status_loggers.h"
#include "fmt/tga.h"
#include "mem/vmm.h"
#include "io/rgb_image.h"
#include "drv/input/keyboard.h"
#include "drv/input/keymap.h"
#include "io/ports.h"
#include "sys/pixfmt.h"
 
tga_header_t pavi_tga_header;
void* pavi_image_buffer = 0;
void* pavi_view_buffer = 0;
 
uint32_t pavi_view(uint32_t argc, char* argv[]) {
    memset(&pavi_tga_header, 0, sizeof pavi_tga_header);
 
    if(argc < 1) {
        tty_error("No arguments!\n");
        return 1;
    }
 
    size_t start_load = timestamp();
 
    FILE* file = fopen(argv[1], "rb");
 
    if(!file) {
        tty_printf("Failed to open file: %s!\n", argv[1]);
        return 1;
    }
 
    fclose(file);
 
    clean_tty_screen();
    tty_printf("Pavi - Opening '%s'...", argv[1]);
 
    tga_extract_info(argv[1], &pavi_tga_header);
 
    qemu_log("W: %d H: %d", pavi_tga_header.w, pavi_tga_header.h);
 
    clean_tty_screen();
    tty_printf("Pavi - Reading contents of '%s'...", argv[1]);
 
    pavi_image_buffer = kmalloc(pavi_tga_header.w * pavi_tga_header.h * 4);
    pavi_view_buffer = kmalloc(pavi_tga_header.w * pavi_tga_header.h * 4);
 
    tga_extract_pixels(argv[1], pavi_image_buffer);
 
    qemu_warn("Ended reading data");
 
    size_t nh = getScreenHeight();
    size_t nw = (size_t)((double)getScreenWidth() * ((double)pavi_tga_header.w / (double)pavi_tga_header.h));
 
    if(nw > pavi_tga_header.w || nh > pavi_tga_header.h) {
        nw = pavi_tga_header.w;
        nh = pavi_tga_header.h;
    }
 
    qemu_note("Colormap is: %x", pavi_tga_header.colormap);
 
    pixfmt_conv(pavi_image_buffer, 32, pavi_tga_header.w, pavi_tga_header.h, SCREEN_BGR, SCREEN_RGB);
 
    scale_rgb_image(pavi_image_buffer, pavi_tga_header.w, pavi_tga_header.h, nw, nh, 1, pavi_view_buffer);
 
    qemu_note("Ended scaling");
 
    size_t end_load = timestamp();
 
    clean_tty_screen();
    tty_printf("Pavi - '%s' [%dx%d] => [%dx%d] (Loaded in: %u ms) (Press ESC to exit)", argv[1], pavi_tga_header.w, pavi_tga_header.h, nw, nh, end_load - start_load);
 
    keyboardctl(KEYBOARD_ECHO, 0);
 
    draw_rgb_image(pavi_view_buffer, nw, nh, 32, (int)(getScreenWidth() - nw) / 2, 16 + (int)(getScreenHeight() - nh) / 2);
 
    punch();
 
    while(1) {
        int key = getCharRaw();
 
        if(key == KEY_ESC) {
            break;
        }
    }
 
    clean_tty_screen();
 
    keyboardctl(KEYBOARD_ECHO, 1);
 
    kfree(pavi_image_buffer);
    kfree(pavi_view_buffer);
 
    return 0;
}