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