src/gba/gui/gui-runner.c (view raw)
1/* Copyright (c) 2013-2015 Jeffrey Pfau
2 *
3 * This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6#include "gui-runner.h"
7
8#include "gba/core.h"
9#include "gba/gui/gui-config.h"
10#include "gba/input.h"
11#include "gba/interface.h"
12#include "gba/serialize.h"
13#include "util/gui/file-select.h"
14#include "util/gui/font.h"
15#include "util/gui/menu.h"
16#include "util/memory.h"
17#include "util/png-io.h"
18#include "util/vfs.h"
19
20#ifdef _3DS
21#include <3ds.h>
22#endif
23
24#include <sys/time.h>
25
26#define FPS_GRANULARITY 120
27#define FPS_BUFFER_SIZE 3
28
29enum {
30 RUNNER_CONTINUE = 1,
31 RUNNER_EXIT,
32 RUNNER_SAVE_STATE,
33 RUNNER_LOAD_STATE,
34 RUNNER_SCREENSHOT,
35 RUNNER_CONFIG,
36 RUNNER_RESET,
37 RUNNER_COMMAND_MASK = 0xFFFF,
38
39 RUNNER_STATE_1 = 0x10000,
40 RUNNER_STATE_2 = 0x20000,
41 RUNNER_STATE_3 = 0x30000,
42 RUNNER_STATE_4 = 0x40000,
43 RUNNER_STATE_5 = 0x50000,
44 RUNNER_STATE_6 = 0x60000,
45 RUNNER_STATE_7 = 0x70000,
46 RUNNER_STATE_8 = 0x80000,
47 RUNNER_STATE_9 = 0x90000,
48};
49
50static void _drawBackground(struct GUIBackground* background, void* context) {
51 UNUSED(context);
52 struct mGUIBackground* gbaBackground = (struct mGUIBackground*) background;
53 if (gbaBackground->p->drawFrame) {
54 gbaBackground->p->drawFrame(gbaBackground->p, true);
55 }
56}
57
58static void _drawState(struct GUIBackground* background, void* id) {
59 struct mGUIBackground* gbaBackground = (struct mGUIBackground*) background;
60 int stateId = ((int) id) >> 16;
61 if (gbaBackground->p->drawScreenshot) {
62 if (gbaBackground->screenshot && gbaBackground->screenshotId == (int) id) {
63 gbaBackground->p->drawScreenshot(gbaBackground->p, gbaBackground->screenshot, true);
64 return;
65 }
66 struct VFile* vf = GBAGetState(gbaBackground->p->core->board, gbaBackground->p->core->dirs.state, stateId, false);
67 uint32_t* pixels = gbaBackground->screenshot;
68 if (!pixels) {
69 pixels = anonymousMemoryMap(VIDEO_HORIZONTAL_PIXELS * VIDEO_VERTICAL_PIXELS * 4);
70 gbaBackground->screenshot = pixels;
71 }
72 bool success = false;
73 if (vf && isPNG(vf) && pixels) {
74 png_structp png = PNGReadOpen(vf, PNG_HEADER_BYTES);
75 png_infop info = png_create_info_struct(png);
76 png_infop end = png_create_info_struct(png);
77 if (png && info && end) {
78 success = PNGReadHeader(png, info);
79 success = success && PNGReadPixels(png, info, pixels, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS, VIDEO_HORIZONTAL_PIXELS);
80 success = success && PNGReadFooter(png, end);
81 }
82 PNGReadClose(png, info, end);
83 }
84 if (vf) {
85 vf->close(vf);
86 }
87 if (success) {
88 gbaBackground->p->drawScreenshot(gbaBackground->p, pixels, true);
89 gbaBackground->screenshotId = (int) id;
90 } else if (gbaBackground->p->drawFrame) {
91 gbaBackground->p->drawFrame(gbaBackground->p, true);
92 }
93 }
94}
95
96static void _updateLux(struct GBALuminanceSource* lux) {
97 UNUSED(lux);
98}
99
100static uint8_t _readLux(struct GBALuminanceSource* lux) {
101 struct mGUIRunnerLux* runnerLux = (struct mGUIRunnerLux*) lux;
102 int value = 0x16;
103 if (runnerLux->luxLevel > 0) {
104 value += GBA_LUX_LEVELS[runnerLux->luxLevel - 1];
105 }
106 return 0xFF - value;
107}
108
109void mGUIInit(struct mGUIRunner* runner, const char* port) {
110 GUIInit(&runner->params);
111 runner->core = GBACoreCreate();
112 runner->core->init(runner->core);
113 mInputMapInit(&runner->core->inputMap, &GBAInputInfo);
114 mCoreInitConfig(runner->core, port);
115 runner->luminanceSource.d.readLuminance = _readLux;
116 runner->luminanceSource.d.sample = _updateLux;
117 runner->luminanceSource.luxLevel = 0;
118 ((struct GBA*) runner->core->board)->luminanceSource = &runner->luminanceSource.d;
119 runner->background.d.draw = _drawBackground;
120 runner->background.p = runner;
121 runner->fps = 0;
122 runner->lastFpsCheck = 0;
123 runner->totalDelta = 0;
124 CircleBufferInit(&runner->fpsBuffer, FPS_BUFFER_SIZE * sizeof(uint32_t));
125 if (runner->setup) {
126 runner->setup(runner);
127 }
128
129 if (runner->core->config.port && runner->keySources) {
130 size_t i;
131 for (i = 0; runner->keySources[i].id; ++i) {
132 mInputMapLoad(&runner->core->inputMap, runner->keySources[i].id, mCoreConfigGetInput(&runner->core->config));
133 }
134 }
135}
136
137void mGUIDeinit(struct mGUIRunner* runner) {
138 if (runner->teardown) {
139 runner->teardown(runner);
140 }
141 if (runner->core->config.port) {
142 if (runner->keySources) {
143 size_t i;
144 for (i = 0; runner->keySources[i].id; ++i) {
145 mInputMapSave(&runner->core->inputMap, runner->keySources[i].id, mCoreConfigGetInput(&runner->core->config));
146 }
147 }
148 mCoreConfigSave(&runner->core->config);
149 }
150 CircleBufferDeinit(&runner->fpsBuffer);
151 runner->core->deinit(runner->core);
152}
153
154void mGUIRun(struct mGUIRunner* runner, const char* path) {
155 struct mGUIBackground drawState = {
156 .d = {
157 .draw = _drawState
158 },
159 .p = runner,
160 .screenshot = 0,
161 .screenshotId = 0
162 };
163 struct GUIMenu pauseMenu = {
164 .title = "Game Paused",
165 .index = 0,
166 .background = &runner->background.d
167 };
168 struct GUIMenu stateSaveMenu = {
169 .title = "Save state",
170 .index = 0,
171 .background = &drawState.d
172 };
173 struct GUIMenu stateLoadMenu = {
174 .title = "Load state",
175 .index = 0,
176 .background = &drawState.d
177 };
178 GUIMenuItemListInit(&pauseMenu.items, 0);
179 GUIMenuItemListInit(&stateSaveMenu.items, 9);
180 GUIMenuItemListInit(&stateLoadMenu.items, 9);
181 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Unpause", .data = (void*) RUNNER_CONTINUE };
182 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Save state", .submenu = &stateSaveMenu };
183 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Load state", .submenu = &stateLoadMenu };
184
185 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 1", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_1) };
186 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 2", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_2) };
187 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 3", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_3) };
188 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 4", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_4) };
189 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 5", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_5) };
190 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 6", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_6) };
191 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 7", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_7) };
192 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 8", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_8) };
193 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 9", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_9) };
194
195 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 1", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_1) };
196 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 2", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_2) };
197 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 3", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_3) };
198 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 4", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_4) };
199 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 5", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_5) };
200 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 6", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_6) };
201 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 7", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_7) };
202 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 8", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_8) };
203 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 9", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_9) };
204
205 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Take screenshot", .data = (void*) RUNNER_SCREENSHOT };
206 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Configure", .data = (void*) RUNNER_CONFIG };
207 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Reset game", .data = (void*) RUNNER_RESET };
208 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Exit game", .data = (void*) RUNNER_EXIT };
209
210 // TODO: Message box API
211 runner->params.drawStart();
212 if (runner->params.guiPrepare) {
213 runner->params.guiPrepare();
214 }
215 GUIFontPrint(runner->params.font, runner->params.width / 2, (GUIFontHeight(runner->params.font) + runner->params.height) / 2, GUI_ALIGN_HCENTER, 0xFFFFFFFF, "Loading...");
216 if (runner->params.guiFinish) {
217 runner->params.guiFinish();
218 }
219 runner->params.drawEnd();
220
221 if (!mCoreLoadFile(runner->core, path)) {
222 int i;
223 for (i = 0; i < 240; ++i) {
224 runner->params.drawStart();
225 if (runner->params.guiPrepare) {
226 runner->params.guiPrepare();
227 }
228 GUIFontPrint(runner->params.font, runner->params.width / 2, (GUIFontHeight(runner->params.font) + runner->params.height) / 2, GUI_ALIGN_HCENTER, 0xFFFFFFFF, "Load failed!");
229 if (runner->params.guiFinish) {
230 runner->params.guiFinish();
231 }
232 runner->params.drawEnd();
233 }
234 return;
235 }
236 mCoreAutoloadSave(runner->core);
237 runner->core->reset(runner->core);
238 bool running = true;
239 if (runner->gameLoaded) {
240 runner->gameLoaded(runner);
241 }
242 while (running) {
243 CircleBufferClear(&runner->fpsBuffer);
244 runner->totalDelta = 0;
245 runner->fps = 0;
246 struct timeval tv;
247 gettimeofday(&tv, 0);
248 runner->lastFpsCheck = 1000000LL * tv.tv_sec + tv.tv_usec;
249
250 while (true) {
251#ifdef _3DS
252 running = aptMainLoop();
253 if (!running) {
254 break;
255 }
256#endif
257 uint32_t guiKeys;
258 GUIPollInput(&runner->params, &guiKeys, 0);
259 if (guiKeys & (1 << GUI_INPUT_CANCEL)) {
260 break;
261 }
262 if (guiKeys & (1 << mGUI_INPUT_INCREASE_BRIGHTNESS)) {
263 if (runner->luminanceSource.luxLevel < 10) {
264 ++runner->luminanceSource.luxLevel;
265 }
266 }
267 if (guiKeys & (1 << mGUI_INPUT_DECREASE_BRIGHTNESS)) {
268 if (runner->luminanceSource.luxLevel > 0) {
269 --runner->luminanceSource.luxLevel;
270 }
271 }
272 if (guiKeys & (1 << mGUI_INPUT_SCREEN_MODE) && runner->incrementScreenMode) {
273 runner->incrementScreenMode(runner);
274 }
275 uint16_t keys = runner->pollGameInput(runner);
276 if (runner->prepareForFrame) {
277 runner->prepareForFrame(runner);
278 }
279 runner->core->setKeys(runner->core, keys);
280 runner->core->runFrame(runner->core);
281 if (runner->drawFrame) {
282 int drawFps = false;
283 mCoreConfigGetIntValue(&runner->core->config, "fpsCounter", &drawFps);
284
285 runner->params.drawStart();
286 runner->drawFrame(runner, false);
287 if (drawFps) {
288 if (runner->params.guiPrepare) {
289 runner->params.guiPrepare();
290 }
291 GUIFontPrintf(runner->params.font, 0, GUIFontHeight(runner->params.font), GUI_ALIGN_LEFT, 0x7FFFFFFF, "%.2f fps", runner->fps);
292 if (runner->params.guiFinish) {
293 runner->params.guiFinish();
294 }
295 }
296 runner->params.drawEnd();
297
298 if (runner->core->frameCounter(runner->core) % FPS_GRANULARITY == 0) {
299 if (drawFps) {
300 struct timeval tv;
301 gettimeofday(&tv, 0);
302 uint64_t t = 1000000LL * tv.tv_sec + tv.tv_usec;
303 uint64_t delta = t - runner->lastFpsCheck;
304 runner->lastFpsCheck = t;
305 if (delta > 0x7FFFFFFFLL) {
306 CircleBufferClear(&runner->fpsBuffer);
307 runner->fps = 0;
308 }
309 if (CircleBufferSize(&runner->fpsBuffer) == CircleBufferCapacity(&runner->fpsBuffer)) {
310 int32_t last;
311 CircleBufferRead32(&runner->fpsBuffer, &last);
312 runner->totalDelta -= last;
313 }
314 CircleBufferWrite32(&runner->fpsBuffer, delta);
315 runner->totalDelta += delta;
316 runner->fps = (CircleBufferSize(&runner->fpsBuffer) * FPS_GRANULARITY * 1000000.0f) / (runner->totalDelta * sizeof(uint32_t));
317 }
318 }
319 }
320 }
321
322 if (runner->paused) {
323 runner->paused(runner);
324 }
325 GUIInvalidateKeys(&runner->params);
326 uint32_t keys = 0xFFFFFFFF; // Huge hack to avoid an extra variable!
327 struct GUIMenuItem* item;
328 enum GUIMenuExitReason reason = GUIShowMenu(&runner->params, &pauseMenu, &item);
329 if (reason == GUI_MENU_EXIT_ACCEPT) {
330 switch (((int) item->data) & RUNNER_COMMAND_MASK) {
331 case RUNNER_EXIT:
332 running = false;
333 keys = 0;
334 break;
335 case RUNNER_RESET:
336 runner->core->reset(runner->core);
337 break;
338 case RUNNER_SAVE_STATE:
339 mCoreSaveState(runner->core, ((int) item->data) >> 16, SAVESTATE_SCREENSHOT);
340 break;
341 case RUNNER_LOAD_STATE:
342 mCoreLoadState(runner->core, ((int) item->data) >> 16, SAVESTATE_SCREENSHOT);
343 break;
344 case RUNNER_SCREENSHOT:
345 mCoreTakeScreenshot(runner->core);
346 break;
347 case RUNNER_CONFIG:
348 mGUIShowConfig(runner, runner->configExtra, runner->nConfigExtra);
349 mCoreConfigGetIntValue(&runner->core->config, "frameskip", &((struct GBA*) runner->core->board)->video.frameskip);
350 break;
351 case RUNNER_CONTINUE:
352 break;
353 }
354 }
355 int frames = 0;
356 GUIPollInput(&runner->params, 0, &keys);
357 while (keys && frames < 30) {
358 ++frames;
359 runner->params.drawStart();
360 runner->drawFrame(runner, true);
361 runner->params.drawEnd();
362 GUIPollInput(&runner->params, 0, &keys);
363 }
364 if (runner->unpaused) {
365 runner->unpaused(runner);
366 }
367 }
368 if (runner->gameUnloaded) {
369 runner->gameUnloaded(runner);
370 }
371 runner->core->unloadROM(runner->core);
372 drawState.screenshotId = 0;
373 if (drawState.screenshot) {
374 mappedMemoryFree(drawState.screenshot, VIDEO_HORIZONTAL_PIXELS * VIDEO_VERTICAL_PIXELS * 4);
375 }
376 GUIMenuItemListDeinit(&pauseMenu.items);
377 GUIMenuItemListDeinit(&stateSaveMenu.items);
378 GUIMenuItemListDeinit(&stateLoadMenu.items);
379}
380
381void mGUIRunloop(struct mGUIRunner* runner) {
382 while (true) {
383 char path[PATH_MAX];
384 if (!GUISelectFile(&runner->params, path, sizeof(path), 0)) {
385 break;
386 }
387 mGUIRun(runner, path);
388 }
389}