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1 nishi 1 
/* $Id: main.c 3 2024-08-28 09:19:04Z nishi $ */
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3 
#include <stdio.h>
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#include <stdbool.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include <string.h>
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#include <raylib.h>
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#include "shiroi.h"
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shiroi_t shiroi;
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void thread_start(void);
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void thread_end(void);
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int main(int argc, char** argv) {
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	FILE* fconf = fopen("shiroi.ini", "r");
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	if(fconf == NULL) {
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		printf("Creating config.\n");
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		fconf = fopen("shiroi.ini", "w");
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		if(fconf == NULL) {
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			fprintf(stderr, "Failed to create config\n");
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			return 1;
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		}
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		fprintf(fconf, "slot1=video_mark_1\n");
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		fprintf(fconf, "slot2=sound_mark_1\n");
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		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");
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		fclose(fconf);
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	}
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	shiroi_init_cards(&shiroi);
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	fconf = fopen("shiroi.ini", "r");
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	struct stat s;
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	stat("shiroi.ini", &s);
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	char* ini = malloc(s.st_size + 1);
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	fread(ini, s.st_size, 1, fconf);
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	ini[s.st_size] = 0;
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	fclose(fconf);
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	int incr = 0;
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	int i;
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	for(i = 0;; i++) {
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		if(ini[i] == 0 || ini[i] == '\n') {
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			char oldc = ini[i];
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			ini[i] = 0;
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			char* line = ini + incr;
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3 nishi 58 
			if(strlen(line) != 0 && line[0] != '#') {
1 nishi 59 
				int j;
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				for(j = 0; line[j] != 0; j++) {
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					if(line[j] == '=') {
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						line[j] = 0;
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						if(strcmp(line, "rom") == 0) {
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							printf("ROM: %s\n", line + j + 1);
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							if(stat(line + j + 1, &s) != 0) {
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								fprintf(stderr, "ROM not found\n");
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								free(ini);
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								return 1;
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							}
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							printf("ROM size: %d\n", s.st_size);
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							FILE* f = fopen(line + j + 1, "rb");
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							fread(shiroi.ram, s.st_size, 1, f);
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							fclose(f);
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						} else if(line[0] == 's' && line[1] == 'l' && line[2] == 'o' && line[3] == 't') {
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							int slot = atoi(line + 4);
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							const char* n = "";
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							int dev = -1;
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							if(strcmp(line + j + 1, "video_mark_1") == 0) {
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								dev = SHIROI_VIDEO_MARK_I;
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								n = "Video Mark I";
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							} else if(strcmp(line + j + 1, "sound_mark_1") == 0) {
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								dev = SHIROI_SOUND_MARK_I;
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								n = "Sound Mark I";
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							} else if(strcmp(line + j + 1, "math_mark_1") == 0) {
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								dev = SHIROI_MATH_MARK_I;
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								n = "Math Mark I";
3 nishi 87 
							} else if(strcmp(line + j + 1, "text_mark_1") == 0) {
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								dev = SHIROI_TEXT_MARK_I;
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								n = "Text Mark I";
1 nishi 90 
							}
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							if(dev == -1) {
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								fprintf(stderr, "No such device called `%s' ; ignoring\n", line + j + 1);
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							} else {
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								shiroi_install(&shiroi, slot, dev);
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								printf("Installed `%s' into slot %d\n", n, slot);
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							}
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						}
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						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);
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	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++) {
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			for(x = 0; x < video->width; x++) {
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				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) {
160 
			text->key = GetCharPressed();
161 
		}
162 
 
1 nishi 163 
		if(video != NULL) {
164 
			BeginTextureMode(r);
165 
 
166 
			int y, x;
167 
			for(y = 0; y < video->height; y++) {
168 
				for(x = 0; x < video->width; x++) {
169 
					if(video->fb[y * video->width + x] != fb[y * TMS9918_PIXELS_X + x]) {
170 
						uint32_t c = video->fb[y * video->width + x];
171 
						// printf("%X\n", c);
172 
						DrawPixel(x, y, (Color){(c >> 24) & 0xff, (c >> 16) & 0xff, (c >> 8) & 0xff, 0xff});
173 
						fb[y * video->width + x] = c;
174 
					}
175 
				}
176 
			}
177 
 
178 
			EndTextureMode();
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180 
			DrawTexturePro(r.texture, (Rectangle){0, 0, video->width, -video->height}, (Rectangle){0, 0, GetScreenWidth(), GetScreenHeight()}, (Vector2){0, 0}, 0, WHITE);
181 
		} else {
182 
			DrawText("No Video", 0, 0, 20, WHITE);
183 
		}
184 
 
185 
		EndDrawing();
186 
	}
187 
	CloseWindow();
188 
	UnloadAudioStream(as);
189 
	if(video != NULL) UnloadRenderTexture(r);
190 
	shiroi.stop = true;
191 
	thread_end();
192 
}