franck.stauffer/chip8
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Use SDL2

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This commit is contained in:
Franck STAUFFER 2020-08-03 17:34:41 +02:00
parent 2bfddbbfd0
commit efce4d6d29
Signed by: franck.stauffer
GPG Key ID: AAF5A94045CEC261
1 changed files with 19 additions and 11 deletions
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30
src/main.c
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@ -1,4 +1,4 @@
#include "SDL/SDL.h"
#include "SDL2/SDL.h"
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
@ -37,11 +37,12 @@ byte st = 0;
word stack[16];
byte v[16];
SDL_Surface* s;
SDL_Event e;
SDL_Surface* s;
SDL_Window* w;
Uint8 fg;
Uint8 bg;
Uint32 fg;
Uint32 bg;
void
init_chip8(void)
@ -81,6 +82,7 @@ void
cleanup(void)
{
SDL_FreeSurface(s);
SDL_DestroyWindow(w);
SDL_Quit();
}
@ -92,7 +94,15 @@ init_SDL(const char* path)
return 0;
}
s = SDL_SetVideoMode(64 * SCALE, 32 * SCALE, 8, SDL_HWSURFACE);
char caption[7 + strlen(path)];
sprintf(caption, "CHIP-8 - %s", path);
w = SDL_CreateWindow(caption, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 64 * SCALE, 32 * SCALE, SDL_WINDOW_SHOWN);
if (!w) {
fputs("ERROR: Failed to create a window\n", stderr);
return 0;
}
s = SDL_GetWindowSurface(w);
if (!s) {
fputs("ERROR: Failed to create SDL surface\n", stderr);
return 0;
@ -105,10 +115,6 @@ init_SDL(const char* path)
return 0;
}
char caption[7 + strlen(path)];
sprintf(caption, "CHIP-8 - %s", path);
SDL_WM_SetCaption(caption, NULL);
return 1;
}
@ -315,7 +321,7 @@ render(void)
SDL_FillRect(s, &r, (gfx[x][y]) ? fg : bg);
}
SDL_Flip(s);
SDL_UpdateWindowSurface(w);
}
static inline uint_fast8_t
@ -323,7 +329,7 @@ op_handler(void)
{
switch (op) {
case 0x00E0:
memset(gfx, 0, 32 * 63 * sizeof(byte));
memset(gfx, 0, 32 * 64 * sizeof(byte));
SDL_Rect r;
r.h = 32 * SCALE;
@ -332,6 +338,8 @@ op_handler(void)
r.y = 0;
SDL_FillRect(s, &r, bg);
SDL_UpdateWindowSurface(w);
pc += 2;
return 1;
case 0x00EE: