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), GBAIsROM)) {
191 break;
192 }
193
194 if (runner->params.guiPrepare) {
195 runner->params.guiPrepare();
196 }
197 // TODO: Message box API
198 runner->params.drawStart();
199 GUIFontPrint(runner->params.font, runner->params.width / 2, (GUIFontHeight(runner->params.font) + runner->params.height) / 2, GUI_TEXT_CENTER, 0xFFFFFFFF, "Loading...");
200 runner->params.drawEnd();
201 runner->params.drawStart();
202 GUIFontPrint(runner->params.font, runner->params.width / 2, (GUIFontHeight(runner->params.font) + runner->params.height) / 2, GUI_TEXT_CENTER, 0xFFFFFFFF, "Loading...");
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 GUIFontPrint(runner->params.font, runner->params.width / 2, (GUIFontHeight(runner->params.font) + runner->params.height) / 2, GUI_TEXT_CENTER, 0xFFFFFFFF, "Load failed!");
210 runner->params.drawEnd();
211 }
212 continue;
213 }
214 if (runner->params.guiFinish) {
215 runner->params.guiFinish();
216 }
217 bool running = GBAContextStart(&runner->context);
218 if (runner->gameLoaded) {
219 runner->gameLoaded(runner);
220 }
221 while (running) {
222 CircleBufferClear(&runner->fpsBuffer);
223 runner->totalDelta = 0;
224 runner->fps = 0;
225 struct timeval tv;
226 gettimeofday(&tv, 0);
227 runner->lastFpsCheck = 1000000LL * tv.tv_sec + tv.tv_usec;
228
229 while (true) {
230 uint32_t guiKeys;
231 GUIPollInput(&runner->params, &guiKeys, 0);
232 if (guiKeys & (1 << GUI_INPUT_CANCEL)) {
233 break;
234 }
235 if (guiKeys & (1 << GBA_GUI_INPUT_INCREASE_BRIGHTNESS)) {
236 if (runner->luminanceSource.luxLevel < 10) {
237 ++runner->luminanceSource.luxLevel;
238 }
239 }
240 if (guiKeys & (1 << GBA_GUI_INPUT_DECREASE_BRIGHTNESS)) {
241 if (runner->luminanceSource.luxLevel > 0) {
242 --runner->luminanceSource.luxLevel;
243 }
244 }
245 if (guiKeys & (1 << GBA_GUI_INPUT_SCREEN_MODE) && runner->incrementScreenMode) {
246 runner->incrementScreenMode(runner);
247 }
248 uint16_t keys = runner->pollGameInput(runner);
249 if (runner->prepareForFrame) {
250 runner->prepareForFrame(runner);
251 }
252 GBAContextFrame(&runner->context, keys);
253 if (runner->drawFrame) {
254 int drawFps = false;
255 GBAConfigGetIntValue(&runner->context.config, "fpsCounter", &drawFps);
256
257 runner->params.drawStart();
258 runner->drawFrame(runner, false);
259 if (drawFps) {
260 if (runner->params.guiPrepare) {
261 runner->params.guiPrepare();
262 }
263 GUIFontPrintf(runner->params.font, 0, GUIFontHeight(runner->params.font), GUI_TEXT_LEFT, 0x7FFFFFFF, "%.2f fps", runner->fps);
264 if (runner->params.guiFinish) {
265 runner->params.guiFinish();
266 }
267 }
268 runner->params.drawEnd();
269
270 if (runner->context.gba->video.frameCounter % FPS_GRANULARITY == 0) {
271 if (drawFps) {
272 struct timeval tv;
273 gettimeofday(&tv, 0);
274 uint64_t t = 1000000LL * tv.tv_sec + tv.tv_usec;
275 uint64_t delta = t - runner->lastFpsCheck;
276 runner->lastFpsCheck = t;
277 if (delta > 0x7FFFFFFFLL) {
278 CircleBufferClear(&runner->fpsBuffer);
279 runner->fps = 0;
280 }
281 if (CircleBufferSize(&runner->fpsBuffer) == CircleBufferCapacity(&runner->fpsBuffer)) {
282 int32_t last;
283 CircleBufferRead32(&runner->fpsBuffer, &last);
284 runner->totalDelta -= last;
285 }
286 CircleBufferWrite32(&runner->fpsBuffer, delta);
287 runner->totalDelta += delta;
288 runner->fps = (CircleBufferSize(&runner->fpsBuffer) * FPS_GRANULARITY * 1000000.0f) / (runner->totalDelta * sizeof(uint32_t));
289 }
290 }
291 }
292 }
293
294 if (runner->paused) {
295 runner->paused(runner);
296 }
297 GUIInvalidateKeys(&runner->params);
298 uint32_t keys = 0xFFFFFFFF; // Huge hack to avoid an extra variable!
299 struct GUIMenuItem* item;
300 enum GUIMenuExitReason reason = GUIShowMenu(&runner->params, &pauseMenu, &item);
301 if (reason == GUI_MENU_EXIT_ACCEPT) {
302 struct VFile* vf;
303 switch (((int) item->data) & RUNNER_COMMAND_MASK) {
304 case RUNNER_EXIT:
305 running = false;
306 keys = 0;
307 break;
308 case RUNNER_RESET:
309 GBAContextReset(&runner->context);
310 break;
311 case RUNNER_SAVE_STATE:
312 vf = GBAGetState(runner->context.gba, 0, ((int) item->data) >> 16, true);
313 if (vf) {
314 GBASaveStateNamed(runner->context.gba, vf, true);
315 vf->close(vf);
316 }
317 break;
318 case RUNNER_LOAD_STATE:
319 vf = GBAGetState(runner->context.gba, 0, ((int) item->data) >> 16, false);
320 if (vf) {
321 GBALoadStateNamed(runner->context.gba, vf);
322 vf->close(vf);
323 }
324 break;
325 case RUNNER_SCREENSHOT:
326 GBATakeScreenshot(runner->context.gba, 0);
327 break;
328 case RUNNER_CONFIG:
329 GBAGUIShowConfig(runner, runner->configExtra, runner->nConfigExtra);
330 GBAConfigGetIntValue(&runner->context.config, "frameskip", &runner->context.gba->video.frameskip);
331 break;
332 case RUNNER_CONTINUE:
333 break;
334 }
335 }
336 int frames = 0;
337 GUIPollInput(&runner->params, 0, &keys);
338 while (keys && frames < 30) {
339 ++frames;
340 runner->params.drawStart();
341 runner->drawFrame(runner, true);
342 runner->params.drawEnd();
343 GUIPollInput(&runner->params, 0, &keys);
344 }
345 if (runner->unpaused) {
346 runner->unpaused(runner);
347 }
348 }
349 GBAContextStop(&runner->context);
350 if (runner->gameUnloaded) {
351 runner->gameUnloaded(runner);
352 }
353 GBAContextUnloadROM(&runner->context);
354 drawState.screenshotId = 0;
355 }
356 if (drawState.screenshot) {
357 mappedMemoryFree(drawState.screenshot, VIDEO_HORIZONTAL_PIXELS * VIDEO_VERTICAL_PIXELS * 4);
358 }
359 GUIMenuItemListDeinit(&pauseMenu.items);
360 GUIMenuItemListDeinit(&stateSaveMenu.items);
361 GUIMenuItemListDeinit(&stateLoadMenu.items);
362}