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1 nishi 1 
/* $Id: main.c 11 2024-08-29 02:49:47Z nishi $ */
2 
 
3 
#include <stdio.h>
4 
#include <stdbool.h>
5 
#include <sys/stat.h>
6 
#include <stdlib.h>
7 
#include <string.h>
8 
 
9 
#include <raylib.h>
10 
 
11 
#include "shiroi.h"
12 
 
13 
shiroi_t shiroi;
14 
 
15 
void thread_start(void);
16 
void thread_end(void);
17 
 
18 
int main(int argc, char** argv) {
19 
	FILE* fconf = fopen("shiroi.ini", "r");
20 
	if(fconf == NULL) {
21 
		printf("Creating config.\n");
22 
		fconf = fopen("shiroi.ini", "w");
23 
		if(fconf == NULL) {
24 
			fprintf(stderr, "Failed to create config\n");
25 
			return 1;
26 
		}
27 
		fprintf(fconf, "slot1=video_mark_1\n");
28 
		fprintf(fconf, "slot2=sound_mark_1\n");
29 
		fprintf(fconf, "slot3=math_mark_1\n");
3 nishi 30 
		fprintf(fconf, "slot4=text_mark_1\n");
1 nishi 31 
		fprintf(fconf, "rom=shiroi.rom\n");
32 
		fclose(fconf);
33 
	}
34 
 
35 
	shiroi_init_cards(&shiroi);
36 
 
37 
	fconf = fopen("shiroi.ini", "r");
38 
 
39 
	struct stat s;
40 
	stat("shiroi.ini", &s);
41 
 
42 
	char* ini = malloc(s.st_size + 1);
43 
	fread(ini, s.st_size, 1, fconf);
44 
 
45 
	ini[s.st_size] = 0;
46 
 
47 
	fclose(fconf);
48 
 
49 
	int incr = 0;
50 
	int i;
51 
	for(i = 0;; i++) {
52 
		if(ini[i] == 0 || ini[i] == '\n') {
53 
			char oldc = ini[i];
54 
			ini[i] = 0;
55 
 
56 
			char* line = ini + incr;
57 
 
3 nishi 58 
			if(strlen(line) != 0 && line[0] != '#') {
1 nishi 59 
				int j;
60 
				for(j = 0; line[j] != 0; j++) {
61 
					if(line[j] == '=') {
62 
						line[j] = 0;
63 
						if(strcmp(line, "rom") == 0) {
64 
							printf("ROM: %s\n", line + j + 1);
65 
							if(stat(line + j + 1, &s) != 0) {
66 
								fprintf(stderr, "ROM not found\n");
67 
								free(ini);
68 
								return 1;
69 
							}
70 
							printf("ROM size: %d\n", s.st_size);
71 
							FILE* f = fopen(line + j + 1, "rb");
72 
							fread(shiroi.ram, s.st_size, 1, f);
73 
							fclose(f);
74 
						} else if(line[0] == 's' && line[1] == 'l' && line[2] == 'o' && line[3] == 't') {
75 
							int slot = atoi(line + 4);
76 
							const char* n = "";
77 
							int dev = -1;
78 
							if(strcmp(line + j + 1, "video_mark_1") == 0) {
79 
								dev = SHIROI_VIDEO_MARK_I;
80 
								n = "Video Mark I";
7 nishi 81 
							} else if(strcmp(line + j + 1, "video_mark_2") == 0) {
82 
								dev = SHIROI_VIDEO_MARK_II;
83 
								n = "Video Mark II";
1 nishi 84 
							} else if(strcmp(line + j + 1, "sound_mark_1") == 0) {
85 
								dev = SHIROI_SOUND_MARK_I;
86 
								n = "Sound Mark I";
87 
							} else if(strcmp(line + j + 1, "math_mark_1") == 0) {
88 
								dev = SHIROI_MATH_MARK_I;
89 
								n = "Math Mark I";
3 nishi 90 
							} else if(strcmp(line + j + 1, "text_mark_1") == 0) {
91 
								dev = SHIROI_TEXT_MARK_I;
92 
								n = "Text Mark I";
1 nishi 93 
							}
94 
							if(dev == -1) {
95 
								fprintf(stderr, "No such device called `%s' ; ignoring\n", line + j + 1);
96 
							} else {
97 
								shiroi_install(&shiroi, slot, dev);
98 
								printf("Installed `%s' into slot %d\n", n, slot);
99 
							}
100 
						}
101 
						break;
102 
					}
103 
				}
104 
			}
105 
 
106 
			incr = i + 1;
107 
			if(oldc == 0) break;
108 
		}
109 
	}
110 
 
111 
	free(ini);
112 
 
113 
	shiroi_init(&shiroi);
114 
 
115 
	double scx = 2;
116 
	double scy = 2;
117 
 
118 
	shiroi_card_t* videocard = shiroi_get_video_card(&shiroi);
119 
	shiroi_video_t* video = NULL;
120 
	if(videocard != NULL) {
121 
		video = videocard->videoptr;
122 
	}
3 nishi 123 
	shiroi_card_t* textcard = shiroi_get_text_card(&shiroi);
124 
	shiroi_text_t* text = NULL;
125 
	if(textcard != NULL) {
126 
		text = textcard->textptr;
127 
	}
1 nishi 128 
 
129 
	SetTraceLogLevel(LOG_NONE);
130 
	if(video != NULL) {
6 nishi 131 
		InitWindow(video->width * scx + (text == NULL ? 0 : 100), video->height * scy, "Shiroi Emulator");
1 nishi 132 
	} else {
6 nishi 133 
		InitWindow(640 + (text == NULL ? 0 : 100), 480, "Shiroi Emulator");
1 nishi 134 
	}
135 
	InitAudioDevice();
136 
	SetAudioStreamBufferSizeDefault(512);
137 
	AudioStream as = LoadAudioStream(48000, 16, 1);
138 
	SetAudioStreamCallback(as, shiroi.play_audio);
139 
	SetTargetFPS(60);
140 
	uint32_t* fb = NULL;
141 
 
142 
	if(video != NULL) {
143 
		fb = malloc(sizeof(*fb) * video->width * video->height);
144 
 
145 
		int x, y;
146 
		for(y = 0; y < video->height; y++) {
147 
			for(x = 0; x < video->width; x++) {
148 
				fb[y * video->width + x] = 0xffffff;
149 
			}
150 
		}
151 
	}
152 
 
153 
	RenderTexture r;
154 
	if(video != NULL) r = LoadRenderTexture(video->width, video->height);
155 
	PlayAudioStream(as);
156 
	thread_start();
157 
	while(!WindowShouldClose()) {
158 
		BeginDrawing();
159 
 
160 
		ClearBackground(BLACK);
161 
 
3 nishi 162 
		if(text != NULL) {
4 nishi 163 
			/*
164 
			 * / 1 2 3 4 5 6 7 8 9 10 11 12 13
7 nishi 165 
			 * 1 1 2 3 4 5 6 7 8 9 0  -  =  bs
4 nishi 166 
			 * 2 q w e r t y u i o p  [  ]  rt
167 
			 * 3 a s d f g h j k l ;  '  \  cl
168 
			 * 4 z x c v b n m , . /  sp
169 
			 */
170 
			int c = GetKeyPressed();
7 nishi 171 
			if(KEY_ONE <= c && c <= KEY_NINE) {
4 nishi 172 
				text->key = (1 << 4) | (c - KEY_ONE + 1);
5 nishi 173 
			} else if(c == KEY_ZERO) {
4 nishi 174 
				text->key = (1 << 4) | 10;
5 nishi 175 
			} else if(c == KEY_MINUS) {
4 nishi 176 
				text->key = (1 << 4) | 11;
5 nishi 177 
			} else if(c == KEY_EQUAL) {
4 nishi 178 
				text->key = (1 << 4) | 12;
7 nishi 179 
			} else if(c == KEY_BACKSPACE) {
180 
				text->key = (1 << 4) | 13;
5 nishi 181 
			} else if(c == KEY_LEFT_BRACKET) {
4 nishi 182 
				text->key = (2 << 4) | 11;
5 nishi 183 
			} else if(c == KEY_RIGHT_BRACKET) {
4 nishi 184 
				text->key = (2 << 4) | 12;
5 nishi 185 
			} else if(c == KEY_ENTER) {
4 nishi 186 
				text->key = (2 << 4) | 13;
5 nishi 187 
			} else if(c == KEY_SEMICOLON) {
4 nishi 188 
				text->key = (3 << 4) | 10;
5 nishi 189 
			} else if(c == KEY_APOSTROPHE) {
4 nishi 190 
				text->key = (3 << 4) | 11;
5 nishi 191 
			} else if(c == KEY_BACKSLASH) {
4 nishi 192 
				text->key = (3 << 4) | 12;
5 nishi 193 
			} else if(c == KEY_LEFT_SHIFT || c == KEY_RIGHT_SHIFT) {
4 nishi 194 
				text->key = (3 << 4) | 13;
6 nishi 195 
				text->caps = !text->caps;
11 nishi 196 
			} else if(c == KEY_F1) {
197 
				if(shiroi.stop) {
198 
					shiroi.stop = false;
199 
					shiroi.reset = true;
200 
					thread_start();
201 
				} else {
202 
					shiroi.reset = true;
203 
					shiroi.stop = true;
204 
					thread_end();
205 
				}
10 nishi 206 
			} else if(c == KEY_F2) {
207 
				shiroi.reset = true;
5 nishi 208 
			} else if(c == KEY_COMMA) {
4 nishi 209 
				text->key = (4 << 4) | 8;
5 nishi 210 
			} else if(c == KEY_PERIOD) {
4 nishi 211 
				text->key = (4 << 4) | 9;
5 nishi 212 
			} else if(c == KEY_SLASH) {
4 nishi 213 
				text->key = (4 << 4) | 10;
5 nishi 214 
			} else if(c == KEY_SPACE) {
4 nishi 215 
				text->key = (4 << 4) | 11;
5 nishi 216 
			} else if(c == KEY_Q) {
4 nishi 217 
				text->key = (2 << 4) | 1;
5 nishi 218 
			} else if(c == KEY_W) {
4 nishi 219 
				text->key = (2 << 4) | 2;
5 nishi 220 
			} else if(c == KEY_E) {
4 nishi 221 
				text->key = (2 << 4) | 3;
5 nishi 222 
			} else if(c == KEY_R) {
4 nishi 223 
				text->key = (2 << 4) | 4;
5 nishi 224 
			} else if(c == KEY_T) {
4 nishi 225 
				text->key = (2 << 4) | 5;
5 nishi 226 
			} else if(c == KEY_Y) {
4 nishi 227 
				text->key = (2 << 4) | 6;
5 nishi 228 
			} else if(c == KEY_U) {
4 nishi 229 
				text->key = (2 << 4) | 7;
5 nishi 230 
			} else if(c == KEY_I) {
4 nishi 231 
				text->key = (2 << 4) | 8;
5 nishi 232 
			} else if(c == KEY_O) {
4 nishi 233 
				text->key = (2 << 4) | 9;
5 nishi 234 
			} else if(c == KEY_P) {
4 nishi 235 
				text->key = (2 << 4) | 10;
5 nishi 236 
			} else if(c == KEY_A) {
4 nishi 237 
				text->key = (3 << 4) | 1;
5 nishi 238 
			} else if(c == KEY_S) {
4 nishi 239 
				text->key = (3 << 4) | 2;
5 nishi 240 
			} else if(c == KEY_D) {
4 nishi 241 
				text->key = (3 << 4) | 3;
5 nishi 242 
			} else if(c == KEY_F) {
4 nishi 243 
				text->key = (3 << 4) | 4;
5 nishi 244 
			} else if(c == KEY_G) {
4 nishi 245 
				text->key = (3 << 4) | 5;
5 nishi 246 
			} else if(c == KEY_H) {
4 nishi 247 
				text->key = (3 << 4) | 6;
5 nishi 248 
			} else if(c == KEY_J) {
4 nishi 249 
				text->key = (3 << 4) | 7;
5 nishi 250 
			} else if(c == KEY_K) {
4 nishi 251 
				text->key = (3 << 4) | 8;
5 nishi 252 
			} else if(c == KEY_L) {
4 nishi 253 
				text->key = (3 << 4) | 9;
5 nishi 254 
			} else if(c == KEY_Z) {
4 nishi 255 
				text->key = (4 << 4) | 1;
5 nishi 256 
			} else if(c == KEY_X) {
4 nishi 257 
				text->key = (4 << 4) | 2;
5 nishi 258 
			} else if(c == KEY_C) {
4 nishi 259 
				text->key = (4 << 4) | 3;
5 nishi 260 
			} else if(c == KEY_V) {
4 nishi 261 
				text->key = (4 << 4) | 4;
5 nishi 262 
			} else if(c == KEY_B) {
4 nishi 263 
				text->key = (4 << 4) | 5;
5 nishi 264 
			} else if(c == KEY_N) {
4 nishi 265 
				text->key = (4 << 4) | 6;
5 nishi 266 
			} else if(c == KEY_M) {
4 nishi 267 
				text->key = (4 << 4) | 7;
268 
			}
3 nishi 269 
		}
270 
 
1 nishi 271 
		if(video != NULL) {
272 
			BeginTextureMode(r);
273 
 
274 
			int y, x;
275 
			for(y = 0; y < video->height; y++) {
276 
				for(x = 0; x < video->width; x++) {
7 nishi 277 
					if(video->fb[y * video->width + x] != fb[y * video->width + x]) {
1 nishi 278 
						uint32_t c = video->fb[y * video->width + x];
7 nishi 279 
						DrawPixel(x, y, (Color){(c >> 24) & 0xff, (c >> 16) & 0xff, (c >> 8) & 0xff, c & 0xff});
1 nishi 280 
						fb[y * video->width + x] = c;
281 
					}
282 
				}
283 
			}
284 
 
285 
			EndTextureMode();
286 
 
6 nishi 287 
			DrawTexturePro(r.texture, (Rectangle){0, 0, video->width, -video->height}, (Rectangle){text == NULL ? 0 : 100, 0, GetScreenWidth() - (text == NULL ? 0 : 100), GetScreenHeight()}, (Vector2){0, 0}, 0, WHITE);
1 nishi 288 
		} else {
7 nishi 289 
			DrawText("No Video", 0, 20, 20, WHITE);
1 nishi 290 
		}
291 
 
6 nishi 292 
		DrawText("Caps Lock", 5, 5, 10, WHITE);
293 
 
294 
		DrawCircle(100 - 10, 10, 5, text->caps ? RED : BLACK);
295 
 
1 nishi 296 
		EndDrawing();
297 
	}
298 
	CloseWindow();
299 
	UnloadAudioStream(as);
300 
	if(video != NULL) UnloadRenderTexture(r);
301 
	shiroi.stop = true;
302 
	thread_end();
303 
}