diff options
author | Dimitri Sokolyuk <demon@dim13.org> | 2012-04-18 03:47:31 +0000 |
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committer | Dimitri Sokolyuk <demon@dim13.org> | 2012-04-18 03:47:31 +0000 |
commit | ce38b43357c573f4a68d24a10f847473ff77b305 (patch) | |
tree | 460172d3071b95854d354661a0352c910aa003f3 /gui.c | |
parent | b7fd152aa1f40ca89da321040e8e86a48e19d1e0 (diff) |
Graphic display, no scalling, no input ... jet
Diffstat (limited to 'gui.c')
-rw-r--r-- | gui.c | 187 |
1 files changed, 187 insertions, 0 deletions
@@ -0,0 +1,187 @@ +/* $Id$ */ +/* + * Copyright (c) 2012 Dimitri Sokolyuk <demon@dim13.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, dATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <SDL.h> +#include <err.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include "dcpu16.h" +#include "font.h" + +#if SDL_BYTEORDER == SDL_BIG_ENDIAN +Uint32 rmask = 0xff000000; +Uint32 gmask = 0x00ff0000; +Uint32 bmask = 0x0000ff00; +Uint32 amask = 0x000000ff; +#else +Uint32 rmask = 0x000000ff; +Uint32 gmask = 0x0000ff00; +Uint32 bmask = 0x00ff0000; +Uint32 amask = 0xff000000; +#endif + +SDL_Surface *screen; + +SDL_Rect disp = { 0, 0, 640, 480 }; +SDL_Rect out = { 64, 48, 640, 480 }; + +SDL_Rect draw = { 16, 12, 128, 96 }; +SDL_Rect scr = { 0, 0, 160, 120 }; +SDL_Rect gl = { 0, 0, 4, 8 }; +SDL_Color black = { 0x00, 0x00, 0x00 }; +SDL_Color white = { 0xff, 0xff, 0xff }; + +SDL_Color color[0x10] = { + { 0x00, 0x00, 0x00 }, + { 0x00, 0x00, 0xaa }, + { 0x00, 0xaa, 0x00 }, + { 0x00, 0xaa, 0xaa }, + { 0xaa, 0x00, 0x00 }, + { 0xaa, 0x00, 0xaa }, + { 0xaa, 0x55, 0x00 }, + { 0xaa, 0xaa, 0xaa }, + { 0x55, 0x55, 0x55 }, + { 0x55, 0x55, 0xff }, + { 0x55, 0xff, 0x55 }, + { 0x55, 0xff, 0xff }, + { 0xff, 0x55, 0x55 }, + { 0xff, 0x55, 0xff }, + { 0xff, 0xff, 0x55 }, + { 0xff, 0xff, 0xff }, +}; + +void +decodecolor(unsigned short u, SDL_Color **fg, SDL_Color **bg) +{ + *bg = &color[(u >> 8) & 0x0f]; + *fg = &color[(u >> 12) & 0x0f]; +} + +void +setpixel(SDL_Surface *s, int x, int y, SDL_Color *c) +{ + Uint32 *buf = (Uint32 *)s->pixels + y * (s->pitch >> 2) + x; + Uint32 pixel = SDL_MapRGB(s->format, c->r, c->g, c->b); + *buf = pixel; +} + +void +fillrect(SDL_Surface *s, SDL_Rect *r, SDL_Color *c) +{ + SDL_FillRect(s, r, SDL_MapRGB(s->format, c->r, c->g, c->b)); +} + +SDL_Surface * +mkglyph(unsigned char ch, SDL_Color *fg, SDL_Color *bg, unsigned short *m) +{ + SDL_Surface *g; + SDL_Color *c; + int i; + + g = SDL_CreateRGBSurface(SDL_SWSURFACE, gl.w, gl.h, 32, + rmask, gmask, bmask, amask); + + ch &= 0x7f; + ch <<= 1; + + for (i = 0; i < 8; i++) { + c = m[CHARS + ch] & (0x0100 << i) ? fg : bg; + setpixel(g, 0, i, c); + + c = m[CHARS + ch] & (0x0001 << i) ? fg : bg; + setpixel(g, 1, i, c); + + c = m[CHARS + ch + 1] & (0x0100 << i) ? fg : bg; + setpixel(g, 2, i, c); + + c = m[CHARS + ch + 1] & (0x0001 << i) ? fg : bg; + setpixel(g, 3, i, c); + } + + return g; +} + +void +setfont(unsigned short *m) +{ + int i; + + for (i = 0; i < 0x80; i++) { + m[CHARS + 2 * i] = atari_small[i][0]; + m[CHARS + 2 * i + 1] = atari_small[i][1]; + } + + m[MISC] = 0x8000; /* set default fg/bg */ +} + +void +guiemu(unsigned short *m, unsigned short *r) +{ + SDL_Surface *glyph; + SDL_Rect to; + SDL_Color *fg, *bg; + SDL_Event event; + int ch, x, y, k = 0, n = 0; + + screen = SDL_SetVideoMode(scr.w, scr.h, 32, SDL_SWSURFACE); + setfont(m); + + to.w = gl.w; + to.h = gl.h; + + while (step(m, r) != -1) { + if (++n % 100) + continue; + + decodecolor(m[MISC], &fg, &bg); + + fillrect(screen, &scr, bg); + + for (x = 0; x < 32; x++) { + for (y = 0; y < 12; y++) { + to.x = draw.x + x * to.w; + to.y = draw.y + y * to.h; + + ch = m[DISP + y * 32 + x]; + + decodecolor(ch, &fg, &bg); + glyph = mkglyph(ch, fg, bg, m); + + SDL_BlitSurface(glyph, &gl, screen, &to); + SDL_FreeSurface(glyph); + } + } + + SDL_Flip(screen); + + while (SDL_PollEvent(&event)) { + switch (event.type) { + case SDL_QUIT: + goto leave; + case SDL_KEYDOWN: + m[KEYB + k] = event.key.keysym.sym; + printf("%x\n", m[KEYB + k]); + k = (k + 1) % 0x10; + break; + } + } + } + +leave: + SDL_FreeSurface(screen); +} |