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_COMMAND_MASK = 0xFFFF,
31
32 RUNNER_STATE_1 = 0x10000,
33 RUNNER_STATE_2 = 0x20000,
34 RUNNER_STATE_3 = 0x30000,
35 RUNNER_STATE_4 = 0x40000,
36 RUNNER_STATE_5 = 0x50000,
37 RUNNER_STATE_6 = 0x60000,
38 RUNNER_STATE_7 = 0x70000,
39 RUNNER_STATE_8 = 0x80000,
40 RUNNER_STATE_9 = 0x90000,
41};
42
43static void _drawBackground(struct GUIBackground* background, void* context) {
44 UNUSED(context);
45 struct GBAGUIBackground* gbaBackground = (struct GBAGUIBackground*) background;
46 if (gbaBackground->p->drawFrame) {
47 gbaBackground->p->drawFrame(gbaBackground->p, true);
48 }
49}
50
51static void _drawState(struct GUIBackground* background, void* id) {
52 struct GBAGUIBackground* gbaBackground = (struct GBAGUIBackground*) background;
53 int stateId = ((int) id) >> 16;
54 if (gbaBackground->p->drawScreenshot) {
55 if (gbaBackground->screenshot && gbaBackground->screenshotId == (int) id) {
56 gbaBackground->p->drawScreenshot(gbaBackground->p, gbaBackground->screenshot, true);
57 return;
58 }
59 struct VFile* vf = GBAGetState(gbaBackground->p->context.gba, 0, stateId, false);
60 uint32_t* pixels = gbaBackground->screenshot;
61 if (!pixels) {
62 pixels = anonymousMemoryMap(VIDEO_HORIZONTAL_PIXELS * VIDEO_VERTICAL_PIXELS * 4);
63 gbaBackground->screenshot = pixels;
64 }
65 bool success = false;
66 if (vf && isPNG(vf) && pixels) {
67 png_structp png = PNGReadOpen(vf, PNG_HEADER_BYTES);
68 png_infop info = png_create_info_struct(png);
69 png_infop end = png_create_info_struct(png);
70 if (png && info && end) {
71 success = PNGReadHeader(png, info);
72 success = success && PNGReadPixels(png, info, pixels, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS, VIDEO_HORIZONTAL_PIXELS);
73 success = success && PNGReadFooter(png, end);
74 }
75 PNGReadClose(png, info, end);
76 }
77 if (vf) {
78 vf->close(vf);
79 }
80 if (success) {
81 gbaBackground->p->drawScreenshot(gbaBackground->p, pixels, true);
82 gbaBackground->screenshotId = (int) id;
83 } else if (gbaBackground->p->drawFrame) {
84 gbaBackground->p->drawFrame(gbaBackground->p, true);
85 }
86 }
87}
88
89static void _updateLux(struct GBALuminanceSource* lux) {
90 UNUSED(lux);
91}
92
93static uint8_t _readLux(struct GBALuminanceSource* lux) {
94 struct GBAGUIRunnerLux* runnerLux = (struct GBAGUIRunnerLux*) lux;
95 int value = 0x16;
96 if (runnerLux->luxLevel > 0) {
97 value += GBA_LUX_LEVELS[runnerLux->luxLevel - 1];
98 }
99 return 0xFF - value;
100}
101
102void GBAGUIInit(struct GBAGUIRunner* runner, const char* port) {
103 GUIInit(&runner->params);
104 GBAContextInit(&runner->context, port);
105 runner->luminanceSource.d.readLuminance = _readLux;
106 runner->luminanceSource.d.sample = _updateLux;
107 runner->luminanceSource.luxLevel = 0;
108 runner->context.gba->luminanceSource = &runner->luminanceSource.d;
109 runner->background.d.draw = _drawBackground;
110 runner->background.p = runner;
111 runner->fps = 0;
112 runner->lastFpsCheck = 0;
113 runner->totalDelta = 0;
114 CircleBufferInit(&runner->fpsBuffer, FPS_BUFFER_SIZE * sizeof(uint32_t));
115 if (runner->setup) {
116 runner->setup(runner);
117 }
118}
119
120void GBAGUIDeinit(struct GBAGUIRunner* runner) {
121 if (runner->teardown) {
122 runner->teardown(runner);
123 }
124 if (runner->context.config.port) {
125 GBAConfigSave(&runner->context.config);
126 }
127 CircleBufferDeinit(&runner->fpsBuffer);
128 GBAContextDeinit(&runner->context);
129}
130
131void GBAGUIRunloop(struct GBAGUIRunner* runner) {
132 struct GBAGUIBackground drawState = {
133 .d = {
134 .draw = _drawState
135 },
136 .p = runner,
137 .screenshot = 0,
138 .screenshotId = 0
139 };
140 struct GUIMenu pauseMenu = {
141 .title = "Game Paused",
142 .index = 0,
143 .background = &runner->background.d
144 };
145 struct GUIMenu stateSaveMenu = {
146 .title = "Save state",
147 .index = 0,
148 .background = &drawState.d
149 };
150 struct GUIMenu stateLoadMenu = {
151 .title = "Load state",
152 .index = 0,
153 .background = &drawState.d
154 };
155 GUIMenuItemListInit(&pauseMenu.items, 0);
156 GUIMenuItemListInit(&stateSaveMenu.items, 9);
157 GUIMenuItemListInit(&stateLoadMenu.items, 9);
158 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Unpause", .data = (void*) RUNNER_CONTINUE };
159 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Save state", .submenu = &stateSaveMenu };
160 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Load state", .submenu = &stateLoadMenu };
161
162 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 1", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_1) };
163 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 2", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_2) };
164 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 3", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_3) };
165 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 4", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_4) };
166 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 5", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_5) };
167 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 6", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_6) };
168 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 7", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_7) };
169 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 8", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_8) };
170 *GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 9", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE_9) };
171
172 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 1", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_1) };
173 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 2", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_2) };
174 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 3", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_3) };
175 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 4", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_4) };
176 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 5", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_5) };
177 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 6", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_6) };
178 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 7", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_7) };
179 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 8", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_8) };
180 *GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 9", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE_9) };
181
182 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Take screenshot", .data = (void*) RUNNER_SCREENSHOT };
183 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Configure", .data = (void*) RUNNER_CONFIG };
184 *GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Exit game", .data = (void*) RUNNER_EXIT };
185
186 while (true) {
187 char path[256];
188 if (!GUISelectFile(&runner->params, path, sizeof(path), GBAIsROM)) {
189 break;
190 }
191
192 if (runner->params.guiPrepare) {
193 runner->params.guiPrepare();
194 }
195 // TODO: Message box API
196 runner->params.drawStart();
197 GUIFontPrint(runner->params.font, runner->params.width / 2, (GUIFontHeight(runner->params.font) + runner->params.height) / 2, GUI_TEXT_CENTER, 0xFFFFFFFF, "Loading...");
198 runner->params.drawEnd();
199 runner->params.drawStart();
200 GUIFontPrint(runner->params.font, runner->params.width / 2, (GUIFontHeight(runner->params.font) + runner->params.height) / 2, GUI_TEXT_CENTER, 0xFFFFFFFF, "Loading...");
201 runner->params.drawEnd();
202
203 if (!GBAContextLoadROM(&runner->context, path, true)) {
204 int i;
205 for (i = 0; i < 300; ++i) {
206 runner->params.drawStart();
207 GUIFontPrint(runner->params.font, runner->params.width / 2, (GUIFontHeight(runner->params.font) + runner->params.height) / 2, GUI_TEXT_CENTER, 0xFFFFFFFF, "Load failed!");
208 runner->params.drawEnd();
209 }
210 continue;
211 }
212 if (runner->params.guiFinish) {
213 runner->params.guiFinish();
214 }
215 GBAContextStart(&runner->context);
216 if (runner->gameLoaded) {
217 runner->gameLoaded(runner);
218 }
219
220 bool running = true;
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.guiPrepare) {
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_SAVE_STATE:
309 vf = GBAGetState(runner->context.gba, 0, ((int) item->data) >> 16, true);
310 if (vf) {
311 GBASaveStateNamed(runner->context.gba, vf, true);
312 vf->close(vf);
313 }
314 break;
315 case RUNNER_LOAD_STATE:
316 vf = GBAGetState(runner->context.gba, 0, ((int) item->data) >> 16, false);
317 if (vf) {
318 GBALoadStateNamed(runner->context.gba, vf);
319 vf->close(vf);
320 }
321 break;
322 case RUNNER_SCREENSHOT:
323 GBATakeScreenshot(runner->context.gba, 0);
324 break;
325 case RUNNER_CONFIG:
326 GBAGUIShowConfig(runner, runner->configExtra, runner->nConfigExtra);
327 GBAConfigGetIntValue(&runner->context.config, "frameskip", &runner->context.gba->video.frameskip);
328 break;
329 case RUNNER_CONTINUE:
330 break;
331 }
332 }
333 int frames = 0;
334 GUIPollInput(&runner->params, 0, &keys);
335 while (keys && frames < 30) {
336 ++frames;
337 runner->params.drawStart();
338 runner->drawFrame(runner, true);
339 runner->params.drawEnd();
340 GUIPollInput(&runner->params, 0, &keys);
341 }
342 if (runner->unpaused) {
343 runner->unpaused(runner);
344 }
345 }
346 GBAContextStop(&runner->context);
347 if (runner->gameUnloaded) {
348 runner->gameUnloaded(runner);
349 }
350 GBAContextUnloadROM(&runner->context);
351 drawState.screenshotId = 0;
352 }
353 if (drawState.screenshot) {
354 mappedMemoryFree(drawState.screenshot, VIDEO_HORIZONTAL_PIXELS * VIDEO_VERTICAL_PIXELS * 4);
355 }
356 GUIMenuItemListDeinit(&pauseMenu.items);
357 GUIMenuItemListDeinit(&stateSaveMenu.items);
358 GUIMenuItemListDeinit(&stateLoadMenu.items);
359}