117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
#include <stdint.h>
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const int res = 32;
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#define setbit(arr, i) arr[i/8] |= (1 << (i%8))
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#define clrbit(arr, i) arr[(i)/8] &= ~(1 << ((i) % 8))
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#define flpbit(arr, i) arr[(i)/8] ^= 1 << ((i) % 8)
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#define getbit(arr, i) arr[(i)/8] & (1 << ((i) % 8))
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#ifdef RLE
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#define NAME_BIN "badapple_rle_bin"
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#else
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#define NAME_BIN "badapple_diff_bin"
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#endif
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extern uint8_t _binary_badapple_bin_start[] asm("_binary_" NAME_BIN "_start");
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extern uint8_t _binary_badapple_bin_end[] asm("_binary_" NAME_BIN "_end");
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static uint8_t screen[0x80];
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#ifdef __LINUX__
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#include <unistd.h>
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#define clear_screen "\033[2J\033[1;1H"
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void display() {
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char buf[res*res*2 + res];
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char* p = buf;
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for (int i = 0; i < res; i++) {
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for (int j = 0; j < res; j++) {
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uint8_t on = getbit(screen, (i * res) + j);
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*p++ = on ? '#' : ' ';
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*p++ = on ? '#' : ' ';
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}
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*p++ = '\n';
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}
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write(1, clear_screen, sizeof(clear_screen)-1);
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write(1, buf, sizeof(buf));
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// ""vsync"""
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usleep(16666*FRAMESKIP);
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}
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#define ROMByteAccess(addr) *(uint8_t*)(addr)
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#endif
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#ifdef __POCKETSTATION__
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#define FPS 96
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#define CLOCK_SPEED CLOCK_8M
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#define VSYNC_COUNT (FRAMESKIP * (FPS/24))
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#include "pocketlib.h"
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static void display() {
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VSync(VSYNC_COUNT);
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uint32_t *src = (uint32_t*)screen;
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volatile unsigned int *dst = LCD_VRAM_ADRS;
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for (int i=32; i--;) {*dst++ = *src++;}
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}
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uint8_t ROMByteAccess(unsigned char *addr)
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{
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uint16_t data = *(uint16_t*)(((uint32_t)addr) & ~1);
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if (((uint32_t)addr) & 1)
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return (data >> 8);
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return (data & 0xFF);
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}
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#endif
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int main(void) {
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#ifdef __POCKETSTATION__
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PocketInit();
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#endif
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#ifdef LOOP
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uint8_t loop = 1;
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#else
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uint8_t loop = 0;
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#endif
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do {
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// read all frames
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uint8_t* p = _binary_badapple_bin_start;
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while(p < _binary_badapple_bin_end) {
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// read a frame
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uint16_t px = 0;
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while(px < res*res && p < _binary_badapple_bin_end) {
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uint8_t value = ROMByteAccess(p++);
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uint8_t changed = value & 1;
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uint8_t count = value >> 1;
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#ifdef RLE
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for(int i = px; i < count+px; i++) {
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if(changed) setbit(screen, i);
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else clrbit(screen, i);
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}
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#else // diff + rle
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if(changed) {
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for (int i = px; i < px+count; i++) flpbit(screen, i);
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}
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#endif
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px += count;
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}
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display();
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#ifdef __POCKETSTATION__
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if(PadOnRelease & PAD_BUTTON) {
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loop = 0;
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break;
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}
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#endif
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}
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} while(loop);
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#ifdef __POCKETSTATION__
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PocketExit();
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#endif
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return 0;
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}
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