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1 nishi 1 
/* $Id: main.c 4 2024-08-28 10:07:23Z 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";
81 
							} else if(strcmp(line + j + 1, "sound_mark_1") == 0) {
82 
								dev = SHIROI_SOUND_MARK_I;
83 
								n = "Sound Mark I";
84 
							} else if(strcmp(line + j + 1, "math_mark_1") == 0) {
85 
								dev = SHIROI_MATH_MARK_I;
86 
								n = "Math Mark I";
3 nishi 87 
							} else if(strcmp(line + j + 1, "text_mark_1") == 0) {
88 
								dev = SHIROI_TEXT_MARK_I;
89 
								n = "Text Mark I";
1 nishi 90 
							}
91 
							if(dev == -1) {
92 
								fprintf(stderr, "No such device called `%s' ; ignoring\n", line + j + 1);
93 
							} else {
94 
								shiroi_install(&shiroi, slot, dev);
95 
								printf("Installed `%s' into slot %d\n", n, slot);
96 
							}
97 
						}
98 
						break;
99 
					}
100 
				}
101 
			}
102 
 
103 
			incr = i + 1;
104 
			if(oldc == 0) break;
105 
		}
106 
	}
107 
 
108 
	free(ini);
109 
 
110 
	shiroi_init(&shiroi);
111 
 
112 
	double scx = 2;
113 
	double scy = 2;
114 
 
115 
	shiroi_card_t* videocard = shiroi_get_video_card(&shiroi);
116 
	shiroi_video_t* video = NULL;
117 
	if(videocard != NULL) {
118 
		video = videocard->videoptr;
119 
	}
3 nishi 120 
	shiroi_card_t* textcard = shiroi_get_text_card(&shiroi);
121 
	shiroi_text_t* text = NULL;
122 
	if(textcard != NULL) {
123 
		text = textcard->textptr;
124 
	}
1 nishi 125 
 
126 
	SetTraceLogLevel(LOG_NONE);
127 
	if(video != NULL) {
128 
		InitWindow(video->width * scx, video->height * scy, "Shiroi Emulator");
129 
	} else {
130 
		InitWindow(640, 480, "Shiroi Emulator");
131 
	}
132 
	InitAudioDevice();
133 
	SetAudioStreamBufferSizeDefault(512);
134 
	AudioStream as = LoadAudioStream(48000, 16, 1);
135 
	SetAudioStreamCallback(as, shiroi.play_audio);
136 
	SetTargetFPS(60);
137 
	uint32_t* fb = NULL;
138 
 
139 
	if(video != NULL) {
140 
		fb = malloc(sizeof(*fb) * video->width * video->height);
141 
 
142 
		int x, y;
143 
		for(y = 0; y < video->height; y++) {
144 
			for(x = 0; x < video->width; x++) {
145 
				fb[y * video->width + x] = 0xffffff;
146 
			}
147 
		}
148 
	}
149 
 
150 
	RenderTexture r;
151 
	if(video != NULL) r = LoadRenderTexture(video->width, video->height);
152 
	PlayAudioStream(as);
153 
	thread_start();
154 
	while(!WindowShouldClose()) {
155 
		BeginDrawing();
156 
 
157 
		ClearBackground(BLACK);
158 
 
3 nishi 159 
		if(text != NULL) {
4 nishi 160 
			/*
161 
			 * / 1 2 3 4 5 6 7 8 9 10 11 12 13
162 
			 * 1 1 2 3 4 5 6 7 8 9 0  -  =
163 
			 * 2 q w e r t y u i o p  [  ]  rt
164 
			 * 3 a s d f g h j k l ;  '  \  cl
165 
			 * 4 z x c v b n m , . /  sp
166 
			 */
167 
			int c = GetKeyPressed();
168 
			if(c == 0){
169 
				text->key = 0;
170 
			}else if(KEY_ONE <= c && c <= KEY_NINE){
171 
				text->key = (1 << 4) | (c - KEY_ONE + 1);
172 
			}else if(c == KEY_ZERO){
173 
				text->key = (1 << 4) | 10;
174 
			}else if(c == KEY_MINUS){
175 
				text->key = (1 << 4) | 11;
176 
			}else if(c == KEY_EQUAL){
177 
				text->key = (1 << 4) | 12;
178 
			}else if(c == KEY_LEFT_BRACKET){
179 
				text->key = (2 << 4) | 11;
180 
			}else if(c == KEY_RIGHT_BRACKET){
181 
				text->key = (2 << 4) | 12;
182 
			}else if(c == KEY_ENTER){
183 
				text->key = (2 << 4) | 13;
184 
			}else if(c == KEY_SEMICOLON){
185 
				text->key = (3 << 4) | 10;
186 
			}else if(c == KEY_APOSTROPHE){
187 
				text->key = (3 << 4) | 11;
188 
			}else if(c == KEY_BACKSLASH){
189 
				text->key = (3 << 4) | 12;
190 
			}else if(c == KEY_LEFT_SHIFT || c == KEY_RIGHT_SHIFT){
191 
				text->key = (3 << 4) | 13;
192 
			}else if(c == KEY_COMMA){
193 
				text->key = (4 << 4) | 8;
194 
			}else if(c == KEY_PERIOD){
195 
				text->key = (4 << 4) | 9;
196 
			}else if(c == KEY_SLASH){
197 
				text->key = (4 << 4) | 10;
198 
			}else if(c == KEY_SPACE){
199 
				text->key = (4 << 4) | 11;
200 
			}else if(c == KEY_Q){
201 
				text->key = (2 << 4) | 1;
202 
			}else if(c == KEY_W){
203 
				text->key = (2 << 4) | 2;
204 
			}else if(c == KEY_E){
205 
				text->key = (2 << 4) | 3;
206 
			}else if(c == KEY_R){
207 
				text->key = (2 << 4) | 4;
208 
			}else if(c == KEY_T){
209 
				text->key = (2 << 4) | 5;
210 
			}else if(c == KEY_Y){
211 
				text->key = (2 << 4) | 6;
212 
			}else if(c == KEY_U){
213 
				text->key = (2 << 4) | 7;
214 
			}else if(c == KEY_I){
215 
				text->key = (2 << 4) | 8;
216 
			}else if(c == KEY_O){
217 
				text->key = (2 << 4) | 9;
218 
			}else if(c == KEY_P){
219 
				text->key = (2 << 4) | 10;
220 
			}else if(c == KEY_A){
221 
				text->key = (3 << 4) | 1;
222 
			}else if(c == KEY_S){
223 
				text->key = (3 << 4) | 2;
224 
			}else if(c == KEY_D){
225 
				text->key = (3 << 4) | 3;
226 
			}else if(c == KEY_F){
227 
				text->key = (3 << 4) | 4;
228 
			}else if(c == KEY_G){
229 
				text->key = (3 << 4) | 5;
230 
			}else if(c == KEY_H){
231 
				text->key = (3 << 4) | 6;
232 
			}else if(c == KEY_J){
233 
				text->key = (3 << 4) | 7;
234 
			}else if(c == KEY_K){
235 
				text->key = (3 << 4) | 8;
236 
			}else if(c == KEY_L){
237 
				text->key = (3 << 4) | 9;
238 
			}else if(c == KEY_Z){
239 
				text->key = (4 << 4) | 1;
240 
			}else if(c == KEY_X){
241 
				text->key = (4 << 4) | 2;
242 
			}else if(c == KEY_C){
243 
				text->key = (4 << 4) | 3;
244 
			}else if(c == KEY_V){
245 
				text->key = (4 << 4) | 4;
246 
			}else if(c == KEY_B){
247 
				text->key = (4 << 4) | 5;
248 
			}else if(c == KEY_N){
249 
				text->key = (4 << 4) | 6;
250 
			}else if(c == KEY_M){
251 
				text->key = (4 << 4) | 7;
252 
			}
3 nishi 253 
		}
254 
 
1 nishi 255 
		if(video != NULL) {
256 
			BeginTextureMode(r);
257 
 
258 
			int y, x;
259 
			for(y = 0; y < video->height; y++) {
260 
				for(x = 0; x < video->width; x++) {
261 
					if(video->fb[y * video->width + x] != fb[y * TMS9918_PIXELS_X + x]) {
262 
						uint32_t c = video->fb[y * video->width + x];
263 
						// printf("%X\n", c);
264 
						DrawPixel(x, y, (Color){(c >> 24) & 0xff, (c >> 16) & 0xff, (c >> 8) & 0xff, 0xff});
265 
						fb[y * video->width + x] = c;
266 
					}
267 
				}
268 
			}
269 
 
270 
			EndTextureMode();
271 
 
272 
			DrawTexturePro(r.texture, (Rectangle){0, 0, video->width, -video->height}, (Rectangle){0, 0, GetScreenWidth(), GetScreenHeight()}, (Vector2){0, 0}, 0, WHITE);
273 
		} else {
274 
			DrawText("No Video", 0, 0, 20, WHITE);
275 
		}
276 
 
277 
		EndDrawing();
278 
	}
279 
	CloseWindow();
280 
	UnloadAudioStream(as);
281 
	if(video != NULL) UnloadRenderTexture(r);
282 
	shiroi.stop = true;
283 
	thread_end();
284 
}