src/gb/core.c (view raw)
1/* Copyright (c) 2013-2016 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 <mgba/gb/core.h>
7
8#include <mgba/core/core.h>
9#include <mgba/internal/debugger/symbols.h>
10#include <mgba/internal/gb/cheats.h>
11#include <mgba/internal/gb/debugger/debugger.h>
12#include <mgba/internal/gb/debugger/symbols.h>
13#include <mgba/internal/gb/extra/cli.h>
14#include <mgba/internal/gb/io.h>
15#include <mgba/internal/gb/gb.h>
16#include <mgba/internal/gb/mbc.h>
17#include <mgba/internal/gb/overrides.h>
18#include <mgba/internal/gb/renderers/software.h>
19#include <mgba/internal/gb/renderers/proxy.h>
20#include <mgba/internal/gb/serialize.h>
21#include <mgba/internal/sm83/sm83.h>
22#include <mgba/internal/sm83/debugger/debugger.h>
23#include <mgba-util/crc32.h>
24#include <mgba-util/memory.h>
25#include <mgba-util/patch.h>
26#include <mgba-util/vfs.h>
27
28static const struct mCoreChannelInfo _GBVideoLayers[] = {
29 { 0, "bg", "Background", NULL },
30 { 1, "bgwin", "Window", NULL },
31 { 2, "obj", "Objects", NULL },
32};
33
34static const struct mCoreChannelInfo _GBAudioChannels[] = {
35 { 0, "ch1", "Channel 1", "Square/Sweep" },
36 { 1, "ch2", "Channel 2", "Square" },
37 { 2, "ch3", "Channel 3", "PCM" },
38 { 3, "ch4", "Channel 4", "Noise" },
39};
40
41static const struct mCoreMemoryBlock _GBMemoryBlocks[] = {
42 { -1, "mem", "All", "All", 0, 0x10000, 0x10000, mCORE_MEMORY_VIRTUAL },
43 { GB_REGION_CART_BANK0, "cart0", "ROM Bank", "Game Pak (32kiB)", GB_BASE_CART_BANK0, GB_BASE_CART_BANK0 + GB_SIZE_CART_BANK0 * 2, 0x800000, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED, 511, GB_BASE_CART_BANK0 + GB_SIZE_CART_BANK0 },
44 { GB_REGION_VRAM, "vram", "VRAM", "Video RAM (8kiB)", GB_BASE_VRAM, GB_BASE_VRAM + GB_SIZE_VRAM, GB_SIZE_VRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
45 { GB_REGION_EXTERNAL_RAM, "sram", "SRAM", "External RAM (8kiB)", GB_BASE_EXTERNAL_RAM, GB_BASE_EXTERNAL_RAM + GB_SIZE_EXTERNAL_RAM, GB_SIZE_EXTERNAL_RAM * 4, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED, 3 },
46 { GB_REGION_WORKING_RAM_BANK0, "wram", "WRAM", "Working RAM (8kiB)", GB_BASE_WORKING_RAM_BANK0, GB_BASE_WORKING_RAM_BANK0 + GB_SIZE_WORKING_RAM_BANK0 * 2 , GB_SIZE_WORKING_RAM_BANK0 * 2, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
47 { GB_BASE_OAM, "oam", "OAM", "OBJ Attribute Memory", GB_BASE_OAM, GB_BASE_OAM + GB_SIZE_OAM, GB_SIZE_OAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
48 { GB_BASE_IO, "io", "MMIO", "Memory-Mapped I/O", GB_BASE_IO, GB_BASE_IO + GB_SIZE_IO, GB_SIZE_IO, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
49 { GB_BASE_HRAM, "hram", "HRAM", "High RAM", GB_BASE_HRAM, GB_BASE_HRAM + GB_SIZE_HRAM, GB_SIZE_HRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
50};
51
52static const struct mCoreMemoryBlock _GBCMemoryBlocks[] = {
53 { -1, "mem", "All", "All", 0, 0x10000, 0x10000, mCORE_MEMORY_VIRTUAL },
54 { GB_REGION_CART_BANK0, "cart0", "ROM Bank", "Game Pak (32kiB)", GB_BASE_CART_BANK0, GB_BASE_CART_BANK0 + GB_SIZE_CART_BANK0 * 2, 0x800000, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED, 511, GB_BASE_CART_BANK0 + GB_SIZE_CART_BANK0 },
55 { GB_REGION_VRAM, "vram", "VRAM", "Video RAM (8kiB)", GB_BASE_VRAM, GB_BASE_VRAM + GB_SIZE_VRAM, GB_SIZE_VRAM * 2, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED, 1 },
56 { GB_REGION_EXTERNAL_RAM, "sram", "SRAM", "External RAM (8kiB)", GB_BASE_EXTERNAL_RAM, GB_BASE_EXTERNAL_RAM + GB_SIZE_EXTERNAL_RAM, GB_SIZE_EXTERNAL_RAM * 4, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED, 3 },
57 { GB_REGION_WORKING_RAM_BANK0, "wram", "WRAM", "Working RAM (8kiB)", GB_BASE_WORKING_RAM_BANK0, GB_BASE_WORKING_RAM_BANK0 + GB_SIZE_WORKING_RAM_BANK0 * 2, GB_SIZE_WORKING_RAM_BANK0 * 8, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED, 7, GB_BASE_WORKING_RAM_BANK0 + GB_SIZE_WORKING_RAM_BANK0 },
58 { GB_BASE_OAM, "oam", "OAM", "OBJ Attribute Memory", GB_BASE_OAM, GB_BASE_OAM + GB_SIZE_OAM, GB_SIZE_OAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
59 { GB_BASE_IO, "io", "MMIO", "Memory-Mapped I/O", GB_BASE_IO, GB_BASE_IO + GB_SIZE_IO, GB_SIZE_IO, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
60 { GB_BASE_HRAM, "hram", "HRAM", "High RAM", GB_BASE_HRAM, GB_BASE_HRAM + GB_SIZE_HRAM, GB_SIZE_HRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
61};
62
63struct mVideoLogContext;
64struct GBCore {
65 struct mCore d;
66 struct GBVideoSoftwareRenderer renderer;
67 struct GBVideoProxyRenderer proxyRenderer;
68 struct mVideoLogContext* logContext;
69 struct mCoreCallbacks logCallbacks;
70 uint8_t keys;
71 struct mCPUComponent* components[CPU_COMPONENT_MAX];
72 const struct Configuration* overrides;
73 struct mDebuggerPlatform* debuggerPlatform;
74 struct mCheatDevice* cheatDevice;
75};
76
77static bool _GBCoreInit(struct mCore* core) {
78 struct GBCore* gbcore = (struct GBCore*) core;
79
80 struct SM83Core* cpu = anonymousMemoryMap(sizeof(struct SM83Core));
81 struct GB* gb = anonymousMemoryMap(sizeof(struct GB));
82 if (!cpu || !gb) {
83 free(cpu);
84 free(gb);
85 return false;
86 }
87 core->cpu = cpu;
88 core->board = gb;
89 core->timing = &gb->timing;
90 gbcore->overrides = NULL;
91 gbcore->debuggerPlatform = NULL;
92 gbcore->cheatDevice = NULL;
93
94 GBCreate(gb);
95 memset(gbcore->components, 0, sizeof(gbcore->components));
96 SM83SetComponents(cpu, &gb->d, CPU_COMPONENT_MAX, gbcore->components);
97 SM83Init(cpu);
98 mRTCGenericSourceInit(&core->rtc, core);
99 gb->memory.rtc = &core->rtc.d;
100
101 GBVideoSoftwareRendererCreate(&gbcore->renderer);
102 gbcore->renderer.outputBuffer = NULL;
103
104 gbcore->keys = 0;
105 gb->keySource = &gbcore->keys;
106
107#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
108 mDirectorySetInit(&core->dirs);
109#endif
110
111 return true;
112}
113
114static void _GBCoreDeinit(struct mCore* core) {
115 SM83Deinit(core->cpu);
116 GBDestroy(core->board);
117 mappedMemoryFree(core->cpu, sizeof(struct SM83Core));
118 mappedMemoryFree(core->board, sizeof(struct GB));
119#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
120 mDirectorySetDeinit(&core->dirs);
121#endif
122#ifdef USE_DEBUGGERS
123 if (core->symbolTable) {
124 mDebuggerSymbolTableDestroy(core->symbolTable);
125 }
126#endif
127
128 struct GBCore* gbcore = (struct GBCore*) core;
129 free(gbcore->debuggerPlatform);
130 if (gbcore->cheatDevice) {
131 mCheatDeviceDestroy(gbcore->cheatDevice);
132 }
133 free(gbcore->cheatDevice);
134 mCoreConfigFreeOpts(&core->opts);
135 free(core);
136}
137
138static enum mPlatform _GBCorePlatform(const struct mCore* core) {
139 UNUSED(core);
140 return PLATFORM_GB;
141}
142
143static bool _GBCoreSupportsFeature(const struct mCore* core, enum mCoreFeature feature) {
144 UNUSED(core);
145 switch (feature) {
146 default:
147 return false;
148 }
149}
150
151static void _GBCoreSetSync(struct mCore* core, struct mCoreSync* sync) {
152 struct GB* gb = core->board;
153 gb->sync = sync;
154}
155
156static void _GBCoreLoadConfig(struct mCore* core, const struct mCoreConfig* config) {
157 UNUSED(config);
158
159 struct GB* gb = core->board;
160 if (core->opts.mute) {
161 gb->audio.masterVolume = 0;
162 } else {
163 gb->audio.masterVolume = core->opts.volume;
164 }
165 gb->video.frameskip = core->opts.frameskip;
166
167 int color;
168 if (mCoreConfigGetIntValue(config, "gb.pal[0]", &color)) {
169 GBVideoSetPalette(&gb->video, 0, color);
170 }
171 if (mCoreConfigGetIntValue(config, "gb.pal[1]", &color)) {
172 GBVideoSetPalette(&gb->video, 1, color);
173 }
174 if (mCoreConfigGetIntValue(config, "gb.pal[2]", &color)) {
175 GBVideoSetPalette(&gb->video, 2, color);
176 }
177 if (mCoreConfigGetIntValue(config, "gb.pal[3]", &color)) {
178 GBVideoSetPalette(&gb->video, 3, color);
179 }
180 if (mCoreConfigGetIntValue(config, "gb.pal[4]", &color)) {
181 GBVideoSetPalette(&gb->video, 4, color);
182 }
183 if (mCoreConfigGetIntValue(config, "gb.pal[5]", &color)) {
184 GBVideoSetPalette(&gb->video, 5, color);
185 }
186 if (mCoreConfigGetIntValue(config, "gb.pal[6]", &color)) {
187 GBVideoSetPalette(&gb->video, 6, color);
188 }
189 if (mCoreConfigGetIntValue(config, "gb.pal[7]", &color)) {
190 GBVideoSetPalette(&gb->video, 7, color);
191 }
192 if (mCoreConfigGetIntValue(config, "gb.pal[8]", &color)) {
193 GBVideoSetPalette(&gb->video, 8, color);
194 }
195 if (mCoreConfigGetIntValue(config, "gb.pal[9]", &color)) {
196 GBVideoSetPalette(&gb->video, 9, color);
197 }
198 if (mCoreConfigGetIntValue(config, "gb.pal[10]", &color)) {
199 GBVideoSetPalette(&gb->video, 10, color);
200 }
201 if (mCoreConfigGetIntValue(config, "gb.pal[11]", &color)) {
202 GBVideoSetPalette(&gb->video, 11, color);
203 }
204
205 mCoreConfigCopyValue(&core->config, config, "gb.bios");
206 mCoreConfigCopyValue(&core->config, config, "sgb.bios");
207 mCoreConfigCopyValue(&core->config, config, "gbc.bios");
208 mCoreConfigCopyValue(&core->config, config, "gb.model");
209 mCoreConfigCopyValue(&core->config, config, "sgb.model");
210 mCoreConfigCopyValue(&core->config, config, "cgb.model");
211 mCoreConfigCopyValue(&core->config, config, "useCgbColors");
212 mCoreConfigCopyValue(&core->config, config, "allowOpposingDirections");
213
214 int fakeBool = 0;
215 mCoreConfigGetIntValue(config, "allowOpposingDirections", &fakeBool);
216 gb->allowOpposingDirections = fakeBool;
217
218 if (mCoreConfigGetIntValue(config, "sgb.borders", &fakeBool)) {
219 gb->video.sgbBorders = fakeBool;
220 gb->video.renderer->enableSGBBorder(gb->video.renderer, fakeBool);
221 }
222
223#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
224 struct GBCore* gbcore = (struct GBCore*) core;
225 gbcore->overrides = mCoreConfigGetOverridesConst(config);
226#endif
227}
228
229static void _GBCoreReloadConfigOption(struct mCore* core, const char* option, const struct mCoreConfig* config) {
230 struct GB* gb = core->board;
231 if (!config) {
232 config = &core->config;
233 }
234
235 if (!option) {
236 // Reload options from opts
237 if (core->opts.mute) {
238 gb->audio.masterVolume = 0;
239 } else {
240 gb->audio.masterVolume = core->opts.volume;
241 }
242 gb->video.frameskip = core->opts.frameskip;
243 return;
244 }
245
246 int fakeBool;
247 if (strcmp("mute", option) == 0) {
248 if (mCoreConfigGetIntValue(config, "mute", &fakeBool)) {
249 core->opts.mute = fakeBool;
250
251 if (core->opts.mute) {
252 gb->audio.masterVolume = 0;
253 } else {
254 gb->audio.masterVolume = core->opts.volume;
255 }
256 }
257 return;
258 }
259 if (strcmp("volume", option) == 0) {
260 if (mCoreConfigGetIntValue(config, "volume", &core->opts.volume) && !core->opts.mute) {
261 gb->audio.masterVolume = core->opts.volume;
262 }
263 return;
264 }
265 if (strcmp("frameskip", option) == 0) {
266 if (mCoreConfigGetIntValue(config, "frameskip", &core->opts.frameskip)) {
267 gb->video.frameskip = core->opts.frameskip;
268 }
269 return;
270 }
271 if (strcmp("allowOpposingDirections", option) == 0) {
272 if (config != &core->config) {
273 mCoreConfigCopyValue(&core->config, config, "allowOpposingDirections");
274 }
275 if (mCoreConfigGetIntValue(config, "allowOpposingDirections", &fakeBool)) {
276 gb->allowOpposingDirections = fakeBool;
277 }
278 return;
279 }
280 if (strcmp("sgb.borders", option) == 0) {
281 if (mCoreConfigGetIntValue(config, "sgb.borders", &fakeBool)) {
282 gb->video.sgbBorders = fakeBool;
283 gb->video.renderer->enableSGBBorder(gb->video.renderer, fakeBool);
284 }
285 }
286}
287
288static void _GBCoreDesiredVideoDimensions(struct mCore* core, unsigned* width, unsigned* height) {
289 struct GB* gb = core->board;
290 if (gb && (!(gb->model & GB_MODEL_SGB) || !gb->video.sgbBorders)) {
291 *width = GB_VIDEO_HORIZONTAL_PIXELS;
292 *height = GB_VIDEO_VERTICAL_PIXELS;
293 } else {
294 *width = 256;
295 *height = 224;
296 }
297}
298
299static void _GBCoreSetVideoBuffer(struct mCore* core, color_t* buffer, size_t stride) {
300 struct GBCore* gbcore = (struct GBCore*) core;
301 gbcore->renderer.outputBuffer = buffer;
302 gbcore->renderer.outputBufferStride = stride;
303}
304
305static void _GBCoreSetVideoGLTex(struct mCore* core, unsigned texid) {
306 UNUSED(core);
307 UNUSED(texid);
308}
309
310static void _GBCoreGetPixels(struct mCore* core, const void** buffer, size_t* stride) {
311 struct GBCore* gbcore = (struct GBCore*) core;
312 gbcore->renderer.d.getPixels(&gbcore->renderer.d, stride, buffer);
313}
314
315static void _GBCorePutPixels(struct mCore* core, const void* buffer, size_t stride) {
316 struct GBCore* gbcore = (struct GBCore*) core;
317 gbcore->renderer.d.putPixels(&gbcore->renderer.d, stride, buffer);
318}
319
320static struct blip_t* _GBCoreGetAudioChannel(struct mCore* core, int ch) {
321 struct GB* gb = core->board;
322 switch (ch) {
323 case 0:
324 return gb->audio.left;
325 case 1:
326 return gb->audio.right;
327 default:
328 return NULL;
329 }
330}
331
332static void _GBCoreSetAudioBufferSize(struct mCore* core, size_t samples) {
333 struct GB* gb = core->board;
334 GBAudioResizeBuffer(&gb->audio, samples);
335}
336
337static size_t _GBCoreGetAudioBufferSize(struct mCore* core) {
338 struct GB* gb = core->board;
339 return gb->audio.samples;
340}
341
342static void _GBCoreAddCoreCallbacks(struct mCore* core, struct mCoreCallbacks* coreCallbacks) {
343 struct GB* gb = core->board;
344 *mCoreCallbacksListAppend(&gb->coreCallbacks) = *coreCallbacks;
345}
346
347static void _GBCoreClearCoreCallbacks(struct mCore* core) {
348 struct GB* gb = core->board;
349 mCoreCallbacksListClear(&gb->coreCallbacks);
350}
351
352static void _GBCoreSetAVStream(struct mCore* core, struct mAVStream* stream) {
353 struct GB* gb = core->board;
354 gb->stream = stream;
355 if (stream && stream->videoDimensionsChanged) {
356 unsigned width, height;
357 core->desiredVideoDimensions(core, &width, &height);
358 stream->videoDimensionsChanged(stream, width, height);
359 }
360}
361
362static bool _GBCoreLoadROM(struct mCore* core, struct VFile* vf) {
363 return GBLoadROM(core->board, vf);
364}
365
366static bool _GBCoreLoadBIOS(struct mCore* core, struct VFile* vf, int type) {
367 UNUSED(type);
368 GBLoadBIOS(core->board, vf);
369 return true;
370}
371
372static bool _GBCoreLoadSave(struct mCore* core, struct VFile* vf) {
373 return GBLoadSave(core->board, vf);
374}
375
376static bool _GBCoreLoadTemporarySave(struct mCore* core, struct VFile* vf) {
377 struct GB* gb = core->board;
378 GBSavedataMask(gb, vf, false);
379 return true; // TODO: Return a real value
380}
381
382static bool _GBCoreLoadPatch(struct mCore* core, struct VFile* vf) {
383 if (!vf) {
384 return false;
385 }
386 struct Patch patch;
387 if (!loadPatch(vf, &patch)) {
388 return false;
389 }
390 GBApplyPatch(core->board, &patch);
391 return true;
392}
393
394static void _GBCoreUnloadROM(struct mCore* core) {
395 struct GBCore* gbcore = (struct GBCore*) core;
396 struct SM83Core* cpu = core->cpu;
397 if (gbcore->cheatDevice) {
398 SM83HotplugDetach(cpu, CPU_COMPONENT_CHEAT_DEVICE);
399 cpu->components[CPU_COMPONENT_CHEAT_DEVICE] = NULL;
400 mCheatDeviceDestroy(gbcore->cheatDevice);
401 gbcore->cheatDevice = NULL;
402 }
403 return GBUnloadROM(core->board);
404}
405
406static void _GBCoreChecksum(const struct mCore* core, void* data, enum mCoreChecksumType type) {
407 struct GB* gb = (struct GB*) core->board;
408 switch (type) {
409 case CHECKSUM_CRC32:
410 memcpy(data, &gb->romCrc32, sizeof(gb->romCrc32));
411 break;
412 }
413 return;
414}
415
416static void _GBCoreReset(struct mCore* core) {
417 struct GBCore* gbcore = (struct GBCore*) core;
418 struct GB* gb = (struct GB*) core->board;
419 if (gbcore->renderer.outputBuffer) {
420 GBVideoAssociateRenderer(&gb->video, &gbcore->renderer.d);
421 }
422
423 if (gb->memory.rom) {
424 int doColorOverride = 0;
425 mCoreConfigGetIntValue(&core->config, "useCgbColors", &doColorOverride);
426
427 struct GBCartridgeOverride override;
428 const struct GBCartridge* cart = (const struct GBCartridge*) &gb->memory.rom[0x100];
429 override.headerCrc32 = doCrc32(cart, sizeof(*cart));
430 if (GBOverrideFind(gbcore->overrides, &override) || (doColorOverride && GBOverrideColorFind(&override))) {
431 GBOverrideApply(gb, &override);
432 }
433 }
434
435 const char* modelGB = mCoreConfigGetValue(&core->config, "gb.model");
436 const char* modelCGB = mCoreConfigGetValue(&core->config, "cgb.model");
437 const char* modelSGB = mCoreConfigGetValue(&core->config, "sgb.model");
438 if (modelGB || modelCGB || modelSGB) {
439 GBDetectModel(gb);
440 if (gb->model == GB_MODEL_DMG && modelGB) {
441 gb->model = GBNameToModel(modelGB);
442 } else if ((gb->model & GB_MODEL_CGB) && modelCGB) {
443 gb->model = GBNameToModel(modelCGB);
444 } else if ((gb->model & GB_MODEL_SGB) && modelSGB) {
445 gb->model = GBNameToModel(modelSGB);
446 }
447 }
448
449#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
450 if (!gb->biosVf && core->opts.useBios) {
451 struct VFile* bios = NULL;
452 bool found = false;
453 if (core->opts.bios) {
454 bios = VFileOpen(core->opts.bios, O_RDONLY);
455 if (bios && GBIsBIOS(bios)) {
456 found = true;
457 } else if (bios) {
458 bios->close(bios);
459 bios = NULL;
460 }
461 }
462 if (!found) {
463 GBDetectModel(gb);
464 const char* configPath = NULL;
465
466 switch (gb->model) {
467 case GB_MODEL_DMG:
468 case GB_MODEL_MGB: // TODO
469 configPath = mCoreConfigGetValue(&core->config, "gb.bios");
470 break;
471 case GB_MODEL_SGB:
472 case GB_MODEL_SGB2: // TODO
473 configPath = mCoreConfigGetValue(&core->config, "sgb.bios");
474 break;
475 case GB_MODEL_CGB:
476 case GB_MODEL_AGB:
477 configPath = mCoreConfigGetValue(&core->config, "gbc.bios");
478 break;
479 default:
480 break;
481 };
482 if (configPath) {
483 bios = VFileOpen(configPath, O_RDONLY);
484 }
485 if (bios && GBIsBIOS(bios)) {
486 found = true;
487 } else if (bios) {
488 bios->close(bios);
489 bios = NULL;
490 }
491 }
492 if (!found) {
493 char path[PATH_MAX];
494 mCoreConfigDirectory(path, PATH_MAX);
495 switch (gb->model) {
496 case GB_MODEL_DMG:
497 case GB_MODEL_MGB: // TODO
498 strncat(path, PATH_SEP "gb_bios.bin", PATH_MAX - strlen(path));
499 break;
500 case GB_MODEL_SGB:
501 case GB_MODEL_SGB2: // TODO
502 strncat(path, PATH_SEP "sgb_bios.bin", PATH_MAX - strlen(path));
503 break;
504 case GB_MODEL_CGB:
505 case GB_MODEL_AGB:
506 strncat(path, PATH_SEP "gbc_bios.bin", PATH_MAX - strlen(path));
507 break;
508 default:
509 break;
510 };
511 bios = VFileOpen(path, O_RDONLY);
512 if (bios && GBIsBIOS(bios)) {
513 found = true;
514 } else if (bios) {
515 bios->close(bios);
516 bios = NULL;
517 }
518 }
519 if (found && bios) {
520 GBLoadBIOS(gb, bios);
521 }
522 }
523#endif
524
525 SM83Reset(core->cpu);
526
527 if (core->opts.skipBios) {
528 GBSkipBIOS(core->board);
529 }
530}
531
532static void _GBCoreRunFrame(struct mCore* core) {
533 struct GB* gb = core->board;
534 int32_t frameCounter = gb->video.frameCounter;
535 while (gb->video.frameCounter == frameCounter) {
536 SM83Run(core->cpu);
537 }
538}
539
540static void _GBCoreRunLoop(struct mCore* core) {
541 SM83Run(core->cpu);
542}
543
544static void _GBCoreStep(struct mCore* core) {
545 struct SM83Core* cpu = core->cpu;
546 do {
547 SM83Tick(cpu);
548 } while (cpu->executionState != SM83_CORE_FETCH);
549}
550
551static size_t _GBCoreStateSize(struct mCore* core) {
552 UNUSED(core);
553 return sizeof(struct GBSerializedState);
554}
555
556static bool _GBCoreLoadState(struct mCore* core, const void* state) {
557 return GBDeserialize(core->board, state);
558}
559
560static bool _GBCoreSaveState(struct mCore* core, void* state) {
561 struct SM83Core* cpu = core->cpu;
562 while (cpu->executionState != SM83_CORE_FETCH) {
563 SM83Tick(cpu);
564 }
565 GBSerialize(core->board, state);
566 return true;
567}
568
569static void _GBCoreSetKeys(struct mCore* core, uint32_t keys) {
570 struct GBCore* gbcore = (struct GBCore*) core;
571 gbcore->keys = keys;
572 GBTestKeypadIRQ(core->board);
573}
574
575static void _GBCoreAddKeys(struct mCore* core, uint32_t keys) {
576 struct GBCore* gbcore = (struct GBCore*) core;
577 gbcore->keys |= keys;
578 GBTestKeypadIRQ(core->board);
579}
580
581static void _GBCoreClearKeys(struct mCore* core, uint32_t keys) {
582 struct GBCore* gbcore = (struct GBCore*) core;
583 gbcore->keys &= ~keys;
584}
585
586static int32_t _GBCoreFrameCounter(const struct mCore* core) {
587 const struct GB* gb = core->board;
588 return gb->video.frameCounter;
589}
590
591static int32_t _GBCoreFrameCycles(const struct mCore* core) {
592 UNUSED(core);
593 return GB_VIDEO_TOTAL_LENGTH;
594}
595
596static int32_t _GBCoreFrequency(const struct mCore* core) {
597 UNUSED(core);
598 // TODO: GB differences
599 return DMG_SM83_FREQUENCY;
600}
601
602static void _GBCoreGetGameTitle(const struct mCore* core, char* title) {
603 GBGetGameTitle(core->board, title);
604}
605
606static void _GBCoreGetGameCode(const struct mCore* core, char* title) {
607 GBGetGameCode(core->board, title);
608}
609
610static void _GBCoreSetPeripheral(struct mCore* core, int type, void* periph) {
611 struct GB* gb = core->board;
612 switch (type) {
613 case mPERIPH_ROTATION:
614 gb->memory.rotation = periph;
615 break;
616 case mPERIPH_RUMBLE:
617 gb->memory.rumble = periph;
618 break;
619 case mPERIPH_IMAGE_SOURCE:
620 gb->memory.cam = periph;
621 break;
622 default:
623 return;
624 }
625}
626
627static uint32_t _GBCoreBusRead8(struct mCore* core, uint32_t address) {
628 struct SM83Core* cpu = core->cpu;
629 return cpu->memory.load8(cpu, address);
630}
631
632static uint32_t _GBCoreBusRead16(struct mCore* core, uint32_t address) {
633 struct SM83Core* cpu = core->cpu;
634 return cpu->memory.load8(cpu, address) | (cpu->memory.load8(cpu, address + 1) << 8);
635}
636
637static uint32_t _GBCoreBusRead32(struct mCore* core, uint32_t address) {
638 struct SM83Core* cpu = core->cpu;
639 return cpu->memory.load8(cpu, address) | (cpu->memory.load8(cpu, address + 1) << 8) |
640 (cpu->memory.load8(cpu, address + 2) << 16) | (cpu->memory.load8(cpu, address + 3) << 24);
641}
642
643static void _GBCoreBusWrite8(struct mCore* core, uint32_t address, uint8_t value) {
644 struct SM83Core* cpu = core->cpu;
645 cpu->memory.store8(cpu, address, value);
646}
647
648static void _GBCoreBusWrite16(struct mCore* core, uint32_t address, uint16_t value) {
649 struct SM83Core* cpu = core->cpu;
650 cpu->memory.store8(cpu, address, value);
651 cpu->memory.store8(cpu, address + 1, value >> 8);
652}
653
654static void _GBCoreBusWrite32(struct mCore* core, uint32_t address, uint32_t value) {
655 struct SM83Core* cpu = core->cpu;
656 cpu->memory.store8(cpu, address, value);
657 cpu->memory.store8(cpu, address + 1, value >> 8);
658 cpu->memory.store8(cpu, address + 2, value >> 16);
659 cpu->memory.store8(cpu, address + 3, value >> 24);
660}
661
662static uint32_t _GBCoreRawRead8(struct mCore* core, uint32_t address, int segment) {
663 struct SM83Core* cpu = core->cpu;
664 return GBView8(cpu, address, segment);
665}
666
667static uint32_t _GBCoreRawRead16(struct mCore* core, uint32_t address, int segment) {
668 struct SM83Core* cpu = core->cpu;
669 return GBView8(cpu, address, segment) | (GBView8(cpu, address + 1, segment) << 8);
670}
671
672static uint32_t _GBCoreRawRead32(struct mCore* core, uint32_t address, int segment) {
673 struct SM83Core* cpu = core->cpu;
674 return GBView8(cpu, address, segment) | (GBView8(cpu, address + 1, segment) << 8) |
675 (GBView8(cpu, address + 2, segment) << 16) | (GBView8(cpu, address + 3, segment) << 24);
676}
677
678static void _GBCoreRawWrite8(struct mCore* core, uint32_t address, int segment, uint8_t value) {
679 struct SM83Core* cpu = core->cpu;
680 GBPatch8(cpu, address, value, NULL, segment);
681}
682
683static void _GBCoreRawWrite16(struct mCore* core, uint32_t address, int segment, uint16_t value) {
684 struct SM83Core* cpu = core->cpu;
685 GBPatch8(cpu, address, value, NULL, segment);
686 GBPatch8(cpu, address + 1, value >> 8, NULL, segment);
687}
688
689static void _GBCoreRawWrite32(struct mCore* core, uint32_t address, int segment, uint32_t value) {
690 struct SM83Core* cpu = core->cpu;
691 GBPatch8(cpu, address, value, NULL, segment);
692 GBPatch8(cpu, address + 1, value >> 8, NULL, segment);
693 GBPatch8(cpu, address + 2, value >> 16, NULL, segment);
694 GBPatch8(cpu, address + 3, value >> 24, NULL, segment);
695}
696
697size_t _GBListMemoryBlocks(const struct mCore* core, const struct mCoreMemoryBlock** blocks) {
698 const struct GB* gb = core->board;
699 switch (gb->model) {
700 case GB_MODEL_DMG:
701 case GB_MODEL_MGB:
702 case GB_MODEL_SGB:
703 case GB_MODEL_SGB2:
704 default:
705 *blocks = _GBMemoryBlocks;
706 return sizeof(_GBMemoryBlocks) / sizeof(*_GBMemoryBlocks);
707 case GB_MODEL_CGB:
708 case GB_MODEL_AGB:
709 *blocks = _GBCMemoryBlocks;
710 return sizeof(_GBCMemoryBlocks) / sizeof(*_GBCMemoryBlocks);
711 }
712}
713
714void* _GBGetMemoryBlock(struct mCore* core, size_t id, size_t* sizeOut) {
715 struct GB* gb = core->board;
716 bool isCgb = gb->model >= GB_MODEL_CGB;
717 switch (id) {
718 default:
719 return NULL;
720 case GB_REGION_CART_BANK0:
721 *sizeOut = gb->memory.romSize;
722 return gb->memory.rom;
723 case GB_REGION_VRAM:
724 *sizeOut = GB_SIZE_WORKING_RAM_BANK0 * (isCgb ? 1 : 2);
725 return gb->video.vram;
726 case GB_REGION_EXTERNAL_RAM:
727 *sizeOut = gb->sramSize;
728 return gb->memory.sram;
729 case GB_REGION_WORKING_RAM_BANK0:
730 *sizeOut = GB_SIZE_VRAM * (isCgb ? 8 : 2);
731 return gb->memory.wram;
732 case GB_BASE_OAM:
733 *sizeOut = GB_SIZE_OAM;
734 return gb->video.oam.raw;
735 case GB_BASE_HRAM:
736 *sizeOut = GB_SIZE_HRAM;
737 return gb->memory.hram;
738 }
739}
740
741#ifdef USE_DEBUGGERS
742static bool _GBCoreSupportsDebuggerType(struct mCore* core, enum mDebuggerType type) {
743 UNUSED(core);
744 switch (type) {
745 case DEBUGGER_CUSTOM:
746 case DEBUGGER_CLI:
747 return true;
748 default:
749 return false;
750 }
751}
752
753static struct mDebuggerPlatform* _GBCoreDebuggerPlatform(struct mCore* core) {
754 struct GBCore* gbcore = (struct GBCore*) core;
755 struct GB* gb = core->board;
756 if (!gbcore->debuggerPlatform) {
757 struct SM83Debugger* platform = (struct SM83Debugger*) GBDebuggerCreate(gb);
758 gbcore->debuggerPlatform = &platform->d;
759 }
760 return gbcore->debuggerPlatform;
761}
762
763static struct CLIDebuggerSystem* _GBCoreCliDebuggerSystem(struct mCore* core) {
764 return GBCLIDebuggerCreate(core);
765}
766
767static void _GBCoreAttachDebugger(struct mCore* core, struct mDebugger* debugger) {
768 struct SM83Core* cpu = core->cpu;
769 if (core->debugger) {
770 SM83HotplugDetach(cpu, CPU_COMPONENT_DEBUGGER);
771 }
772 cpu->components[CPU_COMPONENT_DEBUGGER] = &debugger->d;
773 SM83HotplugAttach(cpu, CPU_COMPONENT_DEBUGGER);
774 core->debugger = debugger;
775}
776
777static void _GBCoreDetachDebugger(struct mCore* core) {
778 struct SM83Core* cpu = core->cpu;
779 if (core->debugger) {
780 SM83HotplugDetach(cpu, CPU_COMPONENT_DEBUGGER);
781 }
782 cpu->components[CPU_COMPONENT_DEBUGGER] = NULL;
783 core->debugger = NULL;
784}
785
786static void _GBCoreLoadSymbols(struct mCore* core, struct VFile* vf) {
787 core->symbolTable = mDebuggerSymbolTableCreate();
788#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
789 if (!vf) {
790 vf = mDirectorySetOpenSuffix(&core->dirs, core->dirs.base, ".sym", O_RDONLY);
791 }
792#endif
793 if (!vf) {
794 return;
795 }
796 GBLoadSymbols(core->symbolTable, vf);
797}
798
799static bool _GBCoreLookupIdentifier(struct mCore* core, const char* name, int32_t* value, int* segment) {
800 UNUSED(core);
801 *segment = -1;
802 int i;
803 for (i = 0; i < REG_MAX; ++i) {
804 const char* reg = GBIORegisterNames[i];
805 if (reg && strcasecmp(reg, name) == 0) {
806 *value = GB_BASE_IO | i;
807 return true;
808 }
809 }
810 return false;
811}
812#endif
813
814static struct mCheatDevice* _GBCoreCheatDevice(struct mCore* core) {
815 struct GBCore* gbcore = (struct GBCore*) core;
816 if (!gbcore->cheatDevice) {
817 gbcore->cheatDevice = GBCheatDeviceCreate();
818 ((struct SM83Core*) core->cpu)->components[CPU_COMPONENT_CHEAT_DEVICE] = &gbcore->cheatDevice->d;
819 SM83HotplugAttach(core->cpu, CPU_COMPONENT_CHEAT_DEVICE);
820 gbcore->cheatDevice->p = core;
821 }
822 return gbcore->cheatDevice;
823}
824
825static size_t _GBCoreSavedataClone(struct mCore* core, void** sram) {
826 struct GB* gb = core->board;
827 struct VFile* vf = gb->sramVf;
828 if (vf) {
829 *sram = malloc(vf->size(vf));
830 vf->seek(vf, 0, SEEK_SET);
831 return vf->read(vf, *sram, vf->size(vf));
832 }
833 if (gb->sramSize) {
834 *sram = malloc(gb->sramSize);
835 memcpy(*sram, gb->memory.sram, gb->sramSize);
836 return gb->sramSize;
837 }
838 *sram = NULL;
839 return 0;
840}
841
842static bool _GBCoreSavedataRestore(struct mCore* core, const void* sram, size_t size, bool writeback) {
843 struct GB* gb = core->board;
844 if (!writeback) {
845 struct VFile* vf = VFileMemChunk(sram, size);
846 GBSavedataMask(gb, vf, true);
847 return true;
848 }
849 struct VFile* vf = gb->sramVf;
850 if (vf) {
851 vf->seek(vf, 0, SEEK_SET);
852 return vf->write(vf, sram, size) > 0;
853 }
854 if (size > 0x20000) {
855 size = 0x20000;
856 }
857 GBResizeSram(gb, size);
858 memcpy(gb->memory.sram, sram, size);
859 return true;
860}
861
862static size_t _GBCoreListVideoLayers(const struct mCore* core, const struct mCoreChannelInfo** info) {
863 UNUSED(core);
864 if (info) {
865 *info = _GBVideoLayers;
866 }
867 return sizeof(_GBVideoLayers) / sizeof(*_GBVideoLayers);
868}
869
870static size_t _GBCoreListAudioChannels(const struct mCore* core, const struct mCoreChannelInfo** info) {
871 UNUSED(core);
872 if (info) {
873 *info = _GBAudioChannels;
874 }
875 return sizeof(_GBAudioChannels) / sizeof(*_GBAudioChannels);
876}
877
878static void _GBCoreEnableVideoLayer(struct mCore* core, size_t id, bool enable) {
879 struct GB* gb = core->board;
880 switch (id) {
881 case 0:
882 gb->video.renderer->disableBG = !enable;
883 break;
884 case 1:
885 gb->video.renderer->disableWIN = !enable;
886 break;
887 case 2:
888 gb->video.renderer->disableOBJ = !enable;
889 break;
890 default:
891 break;
892 }
893}
894
895static void _GBCoreEnableAudioChannel(struct mCore* core, size_t id, bool enable) {
896 struct GB* gb = core->board;
897 switch (id) {
898 case 0:
899 case 1:
900 case 2:
901 case 3:
902 gb->audio.forceDisableCh[id] = !enable;
903 break;
904 default:
905 break;
906 }
907}
908
909static void _GBCoreAdjustVideoLayer(struct mCore* core, size_t id, int32_t x, int32_t y) {
910 struct GBCore* gbcore = (struct GBCore*) core;
911 switch (id) {
912 case 0:
913 gbcore->renderer.offsetScx = x;
914 gbcore->renderer.offsetScy = y;
915 break;
916 case 1:
917 gbcore->renderer.offsetWx = x;
918 gbcore->renderer.offsetWy = y;
919 break;
920 case 2:
921 gbcore->renderer.objOffsetX = x;
922 gbcore->renderer.objOffsetY = y;
923 break;
924 default:
925 return;
926 }
927}
928
929#ifndef MINIMAL_CORE
930static void _GBCoreStartVideoLog(struct mCore* core, struct mVideoLogContext* context) {
931 struct GBCore* gbcore = (struct GBCore*) core;
932 struct GB* gb = core->board;
933 gbcore->logContext = context;
934
935 int channelId = mVideoLoggerAddChannel(context);
936 gbcore->proxyRenderer.logger = malloc(sizeof(struct mVideoLogger));
937 mVideoLoggerRendererCreate(gbcore->proxyRenderer.logger, false);
938 mVideoLoggerAttachChannel(gbcore->proxyRenderer.logger, context, channelId);
939 gbcore->proxyRenderer.logger->block = false;
940
941 GBVideoProxyRendererCreate(&gbcore->proxyRenderer, &gbcore->renderer.d);
942 GBVideoProxyRendererShim(&gb->video, &gbcore->proxyRenderer);
943}
944
945static void _GBCoreEndVideoLog(struct mCore* core) {
946 struct GBCore* gbcore = (struct GBCore*) core;
947 struct GB* gb = core->board;
948 if (gbcore->proxyRenderer.logger) {
949 GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
950 free(gbcore->proxyRenderer.logger);
951 gbcore->proxyRenderer.logger = NULL;
952 }
953}
954#endif
955
956struct mCore* GBCoreCreate(void) {
957 struct GBCore* gbcore = malloc(sizeof(*gbcore));
958 struct mCore* core = &gbcore->d;
959 memset(&core->opts, 0, sizeof(core->opts));
960 core->cpu = NULL;
961 core->board = NULL;
962 core->debugger = NULL;
963 core->symbolTable = NULL;
964 core->init = _GBCoreInit;
965 core->deinit = _GBCoreDeinit;
966 core->platform = _GBCorePlatform;
967 core->supportsFeature = _GBCoreSupportsFeature;
968 core->setSync = _GBCoreSetSync;
969 core->loadConfig = _GBCoreLoadConfig;
970 core->reloadConfigOption = _GBCoreReloadConfigOption;
971 core->desiredVideoDimensions = _GBCoreDesiredVideoDimensions;
972 core->setVideoBuffer = _GBCoreSetVideoBuffer;
973 core->setVideoGLTex = _GBCoreSetVideoGLTex;
974 core->getPixels = _GBCoreGetPixels;
975 core->putPixels = _GBCorePutPixels;
976 core->getAudioChannel = _GBCoreGetAudioChannel;
977 core->setAudioBufferSize = _GBCoreSetAudioBufferSize;
978 core->getAudioBufferSize = _GBCoreGetAudioBufferSize;
979 core->setAVStream = _GBCoreSetAVStream;
980 core->addCoreCallbacks = _GBCoreAddCoreCallbacks;
981 core->clearCoreCallbacks = _GBCoreClearCoreCallbacks;
982 core->isROM = GBIsROM;
983 core->loadROM = _GBCoreLoadROM;
984 core->loadBIOS = _GBCoreLoadBIOS;
985 core->loadSave = _GBCoreLoadSave;
986 core->loadTemporarySave = _GBCoreLoadTemporarySave;
987 core->loadPatch = _GBCoreLoadPatch;
988 core->unloadROM = _GBCoreUnloadROM;
989 core->checksum = _GBCoreChecksum;
990 core->reset = _GBCoreReset;
991 core->runFrame = _GBCoreRunFrame;
992 core->runLoop = _GBCoreRunLoop;
993 core->step = _GBCoreStep;
994 core->stateSize = _GBCoreStateSize;
995 core->loadState = _GBCoreLoadState;
996 core->saveState = _GBCoreSaveState;
997 core->setKeys = _GBCoreSetKeys;
998 core->addKeys = _GBCoreAddKeys;
999 core->clearKeys = _GBCoreClearKeys;
1000 core->frameCounter = _GBCoreFrameCounter;
1001 core->frameCycles = _GBCoreFrameCycles;
1002 core->frequency = _GBCoreFrequency;
1003 core->getGameTitle = _GBCoreGetGameTitle;
1004 core->getGameCode = _GBCoreGetGameCode;
1005 core->setPeripheral = _GBCoreSetPeripheral;
1006 core->busRead8 = _GBCoreBusRead8;
1007 core->busRead16 = _GBCoreBusRead16;
1008 core->busRead32 = _GBCoreBusRead32;
1009 core->busWrite8 = _GBCoreBusWrite8;
1010 core->busWrite16 = _GBCoreBusWrite16;
1011 core->busWrite32 = _GBCoreBusWrite32;
1012 core->rawRead8 = _GBCoreRawRead8;
1013 core->rawRead16 = _GBCoreRawRead16;
1014 core->rawRead32 = _GBCoreRawRead32;
1015 core->rawWrite8 = _GBCoreRawWrite8;
1016 core->rawWrite16 = _GBCoreRawWrite16;
1017 core->rawWrite32 = _GBCoreRawWrite32;
1018 core->listMemoryBlocks = _GBListMemoryBlocks;
1019 core->getMemoryBlock = _GBGetMemoryBlock;
1020#ifdef USE_DEBUGGERS
1021 core->supportsDebuggerType = _GBCoreSupportsDebuggerType;
1022 core->debuggerPlatform = _GBCoreDebuggerPlatform;
1023 core->cliDebuggerSystem = _GBCoreCliDebuggerSystem;
1024 core->attachDebugger = _GBCoreAttachDebugger;
1025 core->detachDebugger = _GBCoreDetachDebugger;
1026 core->loadSymbols = _GBCoreLoadSymbols;
1027 core->lookupIdentifier = _GBCoreLookupIdentifier;
1028#endif
1029 core->cheatDevice = _GBCoreCheatDevice;
1030 core->savedataClone = _GBCoreSavedataClone;
1031 core->savedataRestore = _GBCoreSavedataRestore;
1032 core->listVideoLayers = _GBCoreListVideoLayers;
1033 core->listAudioChannels = _GBCoreListAudioChannels;
1034 core->enableVideoLayer = _GBCoreEnableVideoLayer;
1035 core->enableAudioChannel = _GBCoreEnableAudioChannel;
1036 core->adjustVideoLayer = _GBCoreAdjustVideoLayer;
1037#ifndef MINIMAL_CORE
1038 core->startVideoLog = _GBCoreStartVideoLog;
1039 core->endVideoLog = _GBCoreEndVideoLog;
1040#endif
1041 return core;
1042}
1043
1044#ifndef MINIMAL_CORE
1045static void _GBVLPStartFrameCallback(void *context) {
1046 struct mCore* core = context;
1047 struct GBCore* gbcore = (struct GBCore*) core;
1048 struct GB* gb = core->board;
1049
1050 if (!mVideoLoggerRendererRun(gbcore->proxyRenderer.logger, true)) {
1051 GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
1052 mVideoLogContextRewind(gbcore->logContext, core);
1053 GBVideoProxyRendererShim(&gb->video, &gbcore->proxyRenderer);
1054 gb->earlyExit = true;
1055 }
1056}
1057
1058static bool _GBVLPInit(struct mCore* core) {
1059 struct GBCore* gbcore = (struct GBCore*) core;
1060 if (!_GBCoreInit(core)) {
1061 return false;
1062 }
1063 gbcore->proxyRenderer.logger = malloc(sizeof(struct mVideoLogger));
1064 mVideoLoggerRendererCreate(gbcore->proxyRenderer.logger, true);
1065 GBVideoProxyRendererCreate(&gbcore->proxyRenderer, NULL);
1066 memset(&gbcore->logCallbacks, 0, sizeof(gbcore->logCallbacks));
1067 gbcore->logCallbacks.videoFrameStarted = _GBVLPStartFrameCallback;
1068 gbcore->logCallbacks.context = core;
1069 core->addCoreCallbacks(core, &gbcore->logCallbacks);
1070 core->videoLogger = gbcore->proxyRenderer.logger;
1071 return true;
1072}
1073
1074static void _GBVLPDeinit(struct mCore* core) {
1075 struct GBCore* gbcore = (struct GBCore*) core;
1076 if (gbcore->logContext) {
1077 mVideoLogContextDestroy(core, gbcore->logContext);
1078 }
1079 _GBCoreDeinit(core);
1080}
1081
1082static void _GBVLPReset(struct mCore* core) {
1083 struct GBCore* gbcore = (struct GBCore*) core;
1084 struct GB* gb = (struct GB*) core->board;
1085 if (gb->video.renderer == &gbcore->proxyRenderer.d) {
1086 GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
1087 } else if (gbcore->renderer.outputBuffer) {
1088 struct GBVideoRenderer* renderer = &gbcore->renderer.d;
1089 GBVideoAssociateRenderer(&gb->video, renderer);
1090 }
1091
1092 SM83Reset(core->cpu);
1093 mVideoLogContextRewind(gbcore->logContext, core);
1094 GBVideoProxyRendererShim(&gb->video, &gbcore->proxyRenderer);
1095
1096 // Make sure CPU loop never spins
1097 GBHalt(gb->cpu);
1098 gb->memory.ie = 0;
1099 gb->memory.ime = false;
1100}
1101
1102static bool _GBVLPLoadROM(struct mCore* core, struct VFile* vf) {
1103 struct GBCore* gbcore = (struct GBCore*) core;
1104 gbcore->logContext = mVideoLogContextCreate(NULL);
1105 if (!mVideoLogContextLoad(gbcore->logContext, vf)) {
1106 mVideoLogContextDestroy(core, gbcore->logContext);
1107 gbcore->logContext = NULL;
1108 return false;
1109 }
1110 mVideoLoggerAttachChannel(gbcore->proxyRenderer.logger, gbcore->logContext, 0);
1111 return true;
1112}
1113
1114static bool _GBVLPLoadState(struct mCore* core, const void* buffer) {
1115 struct GB* gb = (struct GB*) core->board;
1116 const struct GBSerializedState* state = buffer;
1117
1118 gb->timing.root = NULL;
1119 gb->model = state->model;
1120
1121 gb->cpu->pc = GB_BASE_HRAM;
1122 gb->cpu->memory.setActiveRegion(gb->cpu, gb->cpu->pc);
1123
1124 GBVideoReset(&gb->video);
1125 GBVideoDeserialize(&gb->video, state);
1126 GBIODeserialize(gb, state);
1127 GBAudioReset(&gb->audio);
1128
1129 // Make sure CPU loop never spins
1130 GBHalt(gb->cpu);
1131 gb->memory.ie = 0;
1132 gb->memory.ime = false;
1133
1134 return true;
1135}
1136
1137static bool _returnTrue(struct VFile* vf) {
1138 UNUSED(vf);
1139 return true;
1140}
1141
1142struct mCore* GBVideoLogPlayerCreate(void) {
1143 struct mCore* core = GBCoreCreate();
1144 core->init = _GBVLPInit;
1145 core->deinit = _GBVLPDeinit;
1146 core->reset = _GBVLPReset;
1147 core->loadROM = _GBVLPLoadROM;
1148 core->loadState = _GBVLPLoadState;
1149 core->isROM = _returnTrue;
1150 return core;
1151}
1152#else
1153struct mCore* GBVideoLogPlayerCreate(void) {
1154 return false;
1155}
1156#endif