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623f3ccbe3
- ubb-vga.h (calloc_phys_vec), physmem.c: non-contiguous memory allocator (for now, without really considering any mapping to physical memory) - Makefile (OBJS): added physmem.o - ubb-vga.h (grabfb), grabfb.c (grabfb): API change for non-contiguous frame buffer - ubb-vga.h (ppmimg), ppmimg.c (convert, ppmimg): API change for non-contiguous frame buffer - ubb-vga.h (tstimg), tstimg.c (pixel, color_bars, grill, grid, sides, dot, line45, arc, printc, text, ctext, tstimg): API change for non-contiguous frame buffer - tstimg.c (tstimg): we no longer need to clear the frame buffer - ubb-vga.c (frame, session, main): use a vector of line buffers instead of a contiguous frame buffer
60 lines
1.1 KiB
C
60 lines
1.1 KiB
C
/*
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* ppmimg.c - Convert a PPM image
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*
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* Written 2011 by Werner Almesberger
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* Copyright 2011 Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "ppm.h"
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#include "ubb-vga.h"
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char *img_name;
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static void convert(void **f, int xres, int yres, uint8_t *ppm)
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{
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int x, y;
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uint8_t *p;
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uint8_t v, last = 0;
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for (y = 0; y != yres; y++) {
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p = f[y];
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for (x = 0; x != xres; x++) {
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v = ccube_map(ppm[0], ppm[1], ppm[2]);
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if (x & 1) {
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*p++ = last | v;
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} else {
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last = v << 4;
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}
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ppm += 3;
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}
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}
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}
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void ppmimg(void **f, int xres, int yres)
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{
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uint8_t *ppm;
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int xr = 0, yr = 0;
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ppm = load_ppm(img_name, &xr, &yr);
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if (xr != xres || yr != yres) {
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fprintf(stderr, "image is %dx%d, display is %dx%d\n",
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xr, yr, xres, yres);
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exit(1);
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}
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convert(f, xres, yres, ppm);
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free(ppm);
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}
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