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/input.h>
17#include <mgba/internal/gb/mbc.h>
18#include <mgba/internal/gb/overrides.h>
19#include <mgba/internal/gb/renderers/software.h>
20#include <mgba/internal/gb/renderers/proxy.h>
21#include <mgba/internal/gb/serialize.h>
22#include <mgba/internal/sm83/sm83.h>
23#include <mgba/internal/sm83/debugger/debugger.h>
24#include <mgba-util/crc32.h>
25#include <mgba-util/memory.h>
26#include <mgba-util/patch.h>
27#include <mgba-util/vfs.h>
28
29#ifndef MINIMAL_CORE
30#include <mgba/internal/gba/input.h>
31#endif
32
33static const struct mCoreChannelInfo _GBVideoLayers[] = {
34 { 0, "bg", "Background", NULL },
35 { 1, "bgwin", "Window", NULL },
36 { 2, "obj", "Objects", NULL },
37};
38
39static const struct mCoreChannelInfo _GBAudioChannels[] = {
40 { 0, "ch1", "Channel 1", "Square/Sweep" },
41 { 1, "ch2", "Channel 2", "Square" },
42 { 2, "ch3", "Channel 3", "PCM" },
43 { 3, "ch4", "Channel 4", "Noise" },
44};
45
46static const struct mCoreMemoryBlock _GBMemoryBlocks[] = {
47 { -1, "mem", "All", "All", 0, 0x10000, 0x10000, mCORE_MEMORY_VIRTUAL },
48 { 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_WORM | mCORE_MEMORY_MAPPED, 511, GB_BASE_CART_BANK0 + GB_SIZE_CART_BANK0 },
49 { 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 },
50 { 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 },
51 { 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 },
52 { 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 },
53 { 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 },
54 { 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 },
55};
56
57static const struct mCoreMemoryBlock _GBCMemoryBlocks[] = {
58 { -1, "mem", "All", "All", 0, 0x10000, 0x10000, mCORE_MEMORY_VIRTUAL },
59 { 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_WORM | mCORE_MEMORY_MAPPED, 511, GB_BASE_CART_BANK0 + GB_SIZE_CART_BANK0 },
60 { 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 },
61 { 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 },
62 { 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 },
63 { 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 },
64 { 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 },
65 { 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 },
66};
67
68struct mVideoLogContext;
69struct GBCore {
70 struct mCore d;
71 struct GBVideoRenderer dummyRenderer;
72 struct GBVideoSoftwareRenderer renderer;
73#ifndef MINIMAL_CORE
74 struct GBVideoProxyRenderer proxyRenderer;
75 struct mVideoLogContext* logContext;
76#endif
77 struct mCoreCallbacks logCallbacks;
78 uint8_t keys;
79 struct mCPUComponent* components[CPU_COMPONENT_MAX];
80 const struct Configuration* overrides;
81 struct mDebuggerPlatform* debuggerPlatform;
82 struct mCheatDevice* cheatDevice;
83};
84
85static bool _GBCoreInit(struct mCore* core) {
86 struct GBCore* gbcore = (struct GBCore*) core;
87
88 struct SM83Core* cpu = anonymousMemoryMap(sizeof(struct SM83Core));
89 struct GB* gb = anonymousMemoryMap(sizeof(struct GB));
90 if (!cpu || !gb) {
91 free(cpu);
92 free(gb);
93 return false;
94 }
95 core->cpu = cpu;
96 core->board = gb;
97 core->timing = &gb->timing;
98 gbcore->overrides = NULL;
99 gbcore->debuggerPlatform = NULL;
100 gbcore->cheatDevice = NULL;
101#ifndef MINIMAL_CORE
102 gbcore->logContext = NULL;
103#endif
104
105 GBCreate(gb);
106 memset(gbcore->components, 0, sizeof(gbcore->components));
107 SM83SetComponents(cpu, &gb->d, CPU_COMPONENT_MAX, gbcore->components);
108 SM83Init(cpu);
109 mRTCGenericSourceInit(&core->rtc, core);
110 gb->memory.rtc = &core->rtc.d;
111
112 GBVideoDummyRendererCreate(&gbcore->dummyRenderer);
113 GBVideoAssociateRenderer(&gb->video, &gbcore->dummyRenderer);
114
115 GBVideoSoftwareRendererCreate(&gbcore->renderer);
116 gbcore->renderer.outputBuffer = NULL;
117
118#ifndef MINIMAL_CORE
119 gbcore->proxyRenderer.logger = NULL;
120#endif
121
122 gbcore->keys = 0;
123 gb->keySource = &gbcore->keys;
124
125#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
126 mDirectorySetInit(&core->dirs);
127#endif
128
129#ifndef MINIMAL_CORE
130 core->inputInfo = &GBInputInfo;
131#endif
132
133 return true;
134}
135
136static void _GBCoreDeinit(struct mCore* core) {
137 SM83Deinit(core->cpu);
138 GBDestroy(core->board);
139 mappedMemoryFree(core->cpu, sizeof(struct SM83Core));
140 mappedMemoryFree(core->board, sizeof(struct GB));
141#if defined USE_DEBUGGERS && (!defined(MINIMAL_CORE) || MINIMAL_CORE < 2)
142 mDirectorySetDeinit(&core->dirs);
143 if (core->symbolTable) {
144 mDebuggerSymbolTableDestroy(core->symbolTable);
145 }
146#endif
147
148 struct GBCore* gbcore = (struct GBCore*) core;
149 free(gbcore->debuggerPlatform);
150 if (gbcore->cheatDevice) {
151 mCheatDeviceDestroy(gbcore->cheatDevice);
152 }
153 free(gbcore->cheatDevice);
154 mCoreConfigFreeOpts(&core->opts);
155 free(core);
156}
157
158static enum mPlatform _GBCorePlatform(const struct mCore* core) {
159 UNUSED(core);
160 return PLATFORM_GB;
161}
162
163static bool _GBCoreSupportsFeature(const struct mCore* core, enum mCoreFeature feature) {
164 UNUSED(core);
165 switch (feature) {
166 default:
167 return false;
168 }
169}
170
171static void _GBCoreSetSync(struct mCore* core, struct mCoreSync* sync) {
172 struct GB* gb = core->board;
173 gb->sync = sync;
174}
175
176static void _GBCoreLoadConfig(struct mCore* core, const struct mCoreConfig* config) {
177 UNUSED(config);
178
179 struct GB* gb = core->board;
180 if (core->opts.mute) {
181 gb->audio.masterVolume = 0;
182 } else {
183 gb->audio.masterVolume = core->opts.volume;
184 }
185 gb->video.frameskip = core->opts.frameskip;
186
187 int color;
188 if (mCoreConfigGetIntValue(config, "gb.pal[0]", &color)) {
189 GBVideoSetPalette(&gb->video, 0, color);
190 }
191 if (mCoreConfigGetIntValue(config, "gb.pal[1]", &color)) {
192 GBVideoSetPalette(&gb->video, 1, color);
193 }
194 if (mCoreConfigGetIntValue(config, "gb.pal[2]", &color)) {
195 GBVideoSetPalette(&gb->video, 2, color);
196 }
197 if (mCoreConfigGetIntValue(config, "gb.pal[3]", &color)) {
198 GBVideoSetPalette(&gb->video, 3, color);
199 }
200 if (mCoreConfigGetIntValue(config, "gb.pal[4]", &color)) {
201 GBVideoSetPalette(&gb->video, 4, color);
202 }
203 if (mCoreConfigGetIntValue(config, "gb.pal[5]", &color)) {
204 GBVideoSetPalette(&gb->video, 5, color);
205 }
206 if (mCoreConfigGetIntValue(config, "gb.pal[6]", &color)) {
207 GBVideoSetPalette(&gb->video, 6, color);
208 }
209 if (mCoreConfigGetIntValue(config, "gb.pal[7]", &color)) {
210 GBVideoSetPalette(&gb->video, 7, color);
211 }
212 if (mCoreConfigGetIntValue(config, "gb.pal[8]", &color)) {
213 GBVideoSetPalette(&gb->video, 8, color);
214 }
215 if (mCoreConfigGetIntValue(config, "gb.pal[9]", &color)) {
216 GBVideoSetPalette(&gb->video, 9, color);
217 }
218 if (mCoreConfigGetIntValue(config, "gb.pal[10]", &color)) {
219 GBVideoSetPalette(&gb->video, 10, color);
220 }
221 if (mCoreConfigGetIntValue(config, "gb.pal[11]", &color)) {
222 GBVideoSetPalette(&gb->video, 11, color);
223 }
224
225 mCoreConfigCopyValue(&core->config, config, "gb.bios");
226 mCoreConfigCopyValue(&core->config, config, "sgb.bios");
227 mCoreConfigCopyValue(&core->config, config, "gbc.bios");
228 mCoreConfigCopyValue(&core->config, config, "gb.model");
229 mCoreConfigCopyValue(&core->config, config, "sgb.model");
230 mCoreConfigCopyValue(&core->config, config, "cgb.model");
231 mCoreConfigCopyValue(&core->config, config, "useCgbColors");
232 mCoreConfigCopyValue(&core->config, config, "allowOpposingDirections");
233
234 int fakeBool = 0;
235 mCoreConfigGetIntValue(config, "allowOpposingDirections", &fakeBool);
236 gb->allowOpposingDirections = fakeBool;
237
238 if (mCoreConfigGetIntValue(config, "sgb.borders", &fakeBool)) {
239 gb->video.sgbBorders = fakeBool;
240 gb->video.renderer->enableSGBBorder(gb->video.renderer, fakeBool);
241 }
242
243#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
244 struct GBCore* gbcore = (struct GBCore*) core;
245 gbcore->overrides = mCoreConfigGetOverridesConst(config);
246#endif
247}
248
249static void _GBCoreReloadConfigOption(struct mCore* core, const char* option, const struct mCoreConfig* config) {
250 struct GB* gb = core->board;
251 if (!config) {
252 config = &core->config;
253 }
254
255 if (!option) {
256 // Reload options from opts
257 if (core->opts.mute) {
258 gb->audio.masterVolume = 0;
259 } else {
260 gb->audio.masterVolume = core->opts.volume;
261 }
262 gb->video.frameskip = core->opts.frameskip;
263 return;
264 }
265
266 int fakeBool;
267 if (strcmp("mute", option) == 0) {
268 if (mCoreConfigGetIntValue(config, "mute", &fakeBool)) {
269 core->opts.mute = fakeBool;
270
271 if (core->opts.mute) {
272 gb->audio.masterVolume = 0;
273 } else {
274 gb->audio.masterVolume = core->opts.volume;
275 }
276 }
277 return;
278 }
279 if (strcmp("volume", option) == 0) {
280 if (mCoreConfigGetIntValue(config, "volume", &core->opts.volume) && !core->opts.mute) {
281 gb->audio.masterVolume = core->opts.volume;
282 }
283 return;
284 }
285 if (strcmp("frameskip", option) == 0) {
286 if (mCoreConfigGetIntValue(config, "frameskip", &core->opts.frameskip)) {
287 gb->video.frameskip = core->opts.frameskip;
288 }
289 return;
290 }
291 if (strcmp("allowOpposingDirections", option) == 0) {
292 if (config != &core->config) {
293 mCoreConfigCopyValue(&core->config, config, "allowOpposingDirections");
294 }
295 if (mCoreConfigGetIntValue(config, "allowOpposingDirections", &fakeBool)) {
296 gb->allowOpposingDirections = fakeBool;
297 }
298 return;
299 }
300}
301
302static void _GBCoreDesiredVideoDimensions(const struct mCore* core, unsigned* width, unsigned* height) {
303 const struct GB* gb = core->board;
304 if (gb && (!(gb->model & GB_MODEL_SGB) || !gb->video.sgbBorders)) {
305 *width = GB_VIDEO_HORIZONTAL_PIXELS;
306 *height = GB_VIDEO_VERTICAL_PIXELS;
307 } else {
308 *width = 256;
309 *height = 224;
310 }
311}
312
313static void _GBCoreSetVideoBuffer(struct mCore* core, color_t* buffer, size_t stride) {
314 struct GBCore* gbcore = (struct GBCore*) core;
315 gbcore->renderer.outputBuffer = buffer;
316 gbcore->renderer.outputBufferStride = stride;
317}
318
319static void _GBCoreSetVideoGLTex(struct mCore* core, unsigned texid) {
320 UNUSED(core);
321 UNUSED(texid);
322}
323
324static void _GBCoreGetPixels(struct mCore* core, const void** buffer, size_t* stride) {
325 struct GBCore* gbcore = (struct GBCore*) core;
326 gbcore->renderer.d.getPixels(&gbcore->renderer.d, stride, buffer);
327}
328
329static void _GBCorePutPixels(struct mCore* core, const void* buffer, size_t stride) {
330 struct GBCore* gbcore = (struct GBCore*) core;
331 gbcore->renderer.d.putPixels(&gbcore->renderer.d, stride, buffer);
332}
333
334static struct blip_t* _GBCoreGetAudioChannel(struct mCore* core, int ch) {
335 struct GB* gb = core->board;
336 switch (ch) {
337 case 0:
338 return gb->audio.left;
339 case 1:
340 return gb->audio.right;
341 default:
342 return NULL;
343 }
344}
345
346static void _GBCoreSetAudioBufferSize(struct mCore* core, size_t samples) {
347 struct GB* gb = core->board;
348 GBAudioResizeBuffer(&gb->audio, samples);
349}
350
351static size_t _GBCoreGetAudioBufferSize(struct mCore* core) {
352 struct GB* gb = core->board;
353 return gb->audio.samples;
354}
355
356static void _GBCoreAddCoreCallbacks(struct mCore* core, struct mCoreCallbacks* coreCallbacks) {
357 struct GB* gb = core->board;
358 *mCoreCallbacksListAppend(&gb->coreCallbacks) = *coreCallbacks;
359}
360
361static void _GBCoreClearCoreCallbacks(struct mCore* core) {
362 struct GB* gb = core->board;
363 mCoreCallbacksListClear(&gb->coreCallbacks);
364}
365
366static void _GBCoreSetAVStream(struct mCore* core, struct mAVStream* stream) {
367 struct GB* gb = core->board;
368 gb->stream = stream;
369 if (stream && stream->videoDimensionsChanged) {
370 unsigned width, height;
371 core->desiredVideoDimensions(core, &width, &height);
372 stream->videoDimensionsChanged(stream, width, height);
373 }
374 if (stream && stream->videoFrameRateChanged) {
375 stream->videoFrameRateChanged(stream, core->frameCycles(core), core->frequency(core));
376 }
377}
378
379static bool _GBCoreLoadROM(struct mCore* core, struct VFile* vf) {
380 return GBLoadROM(core->board, vf);
381}
382
383static bool _GBCoreLoadBIOS(struct mCore* core, struct VFile* vf, int type) {
384 UNUSED(type);
385 GBLoadBIOS(core->board, vf);
386 return true;
387}
388
389static bool _GBCoreLoadSave(struct mCore* core, struct VFile* vf) {
390 return GBLoadSave(core->board, vf);
391}
392
393static bool _GBCoreLoadTemporarySave(struct mCore* core, struct VFile* vf) {
394 struct GB* gb = core->board;
395 GBSavedataMask(gb, vf, false);
396 return true; // TODO: Return a real value
397}
398
399static bool _GBCoreLoadPatch(struct mCore* core, struct VFile* vf) {
400 if (!vf) {
401 return false;
402 }
403 struct Patch patch;
404 if (!loadPatch(vf, &patch)) {
405 return false;
406 }
407 GBApplyPatch(core->board, &patch);
408 return true;
409}
410
411static void _GBCoreUnloadROM(struct mCore* core) {
412 struct GBCore* gbcore = (struct GBCore*) core;
413 struct SM83Core* cpu = core->cpu;
414 if (gbcore->cheatDevice) {
415 SM83HotplugDetach(cpu, CPU_COMPONENT_CHEAT_DEVICE);
416 cpu->components[CPU_COMPONENT_CHEAT_DEVICE] = NULL;
417 mCheatDeviceDestroy(gbcore->cheatDevice);
418 gbcore->cheatDevice = NULL;
419 }
420 return GBUnloadROM(core->board);
421}
422
423static void _GBCoreChecksum(const struct mCore* core, void* data, enum mCoreChecksumType type) {
424 struct GB* gb = (struct GB*) core->board;
425 switch (type) {
426 case CHECKSUM_CRC32:
427 memcpy(data, &gb->romCrc32, sizeof(gb->romCrc32));
428 break;
429 }
430 return;
431}
432
433static void _GBCoreReset(struct mCore* core) {
434 struct GBCore* gbcore = (struct GBCore*) core;
435 struct GB* gb = (struct GB*) core->board;
436 if (gbcore->renderer.outputBuffer) {
437 GBVideoAssociateRenderer(&gb->video, &gbcore->renderer.d);
438 }
439
440 if (gb->memory.rom) {
441 int doColorOverride = 0;
442 mCoreConfigGetIntValue(&core->config, "useCgbColors", &doColorOverride);
443
444 struct GBCartridgeOverride override;
445 const struct GBCartridge* cart = (const struct GBCartridge*) &gb->memory.rom[0x100];
446 override.headerCrc32 = doCrc32(cart, sizeof(*cart));
447 if (GBOverrideFind(gbcore->overrides, &override) || (doColorOverride && GBOverrideColorFind(&override))) {
448 GBOverrideApply(gb, &override);
449 }
450 }
451
452 const char* modelGB = mCoreConfigGetValue(&core->config, "gb.model");
453 const char* modelCGB = mCoreConfigGetValue(&core->config, "cgb.model");
454 const char* modelSGB = mCoreConfigGetValue(&core->config, "sgb.model");
455 if (modelGB || modelCGB || modelSGB) {
456 GBDetectModel(gb);
457 if (gb->model == GB_MODEL_DMG && modelGB) {
458 gb->model = GBNameToModel(modelGB);
459 } else if ((gb->model & GB_MODEL_CGB) && modelCGB) {
460 gb->model = GBNameToModel(modelCGB);
461 } else if ((gb->model & GB_MODEL_SGB) && modelSGB) {
462 gb->model = GBNameToModel(modelSGB);
463 }
464 }
465
466#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
467 if (!gb->biosVf && core->opts.useBios) {
468 struct VFile* bios = NULL;
469 bool found = false;
470 if (core->opts.bios) {
471 bios = VFileOpen(core->opts.bios, O_RDONLY);
472 if (bios && GBIsBIOS(bios)) {
473 found = true;
474 } else if (bios) {
475 bios->close(bios);
476 bios = NULL;
477 }
478 }
479 if (!found) {
480 GBDetectModel(gb);
481 const char* configPath = NULL;
482
483 switch (gb->model) {
484 case GB_MODEL_DMG:
485 case GB_MODEL_MGB: // TODO
486 configPath = mCoreConfigGetValue(&core->config, "gb.bios");
487 break;
488 case GB_MODEL_SGB:
489 case GB_MODEL_SGB2: // TODO
490 configPath = mCoreConfigGetValue(&core->config, "sgb.bios");
491 break;
492 case GB_MODEL_CGB:
493 case GB_MODEL_AGB:
494 configPath = mCoreConfigGetValue(&core->config, "gbc.bios");
495 break;
496 default:
497 break;
498 };
499 if (configPath) {
500 bios = VFileOpen(configPath, O_RDONLY);
501 }
502 if (bios && GBIsBIOS(bios)) {
503 found = true;
504 } else if (bios) {
505 bios->close(bios);
506 bios = NULL;
507 }
508 }
509 if (!found) {
510 char path[PATH_MAX];
511 mCoreConfigDirectory(path, PATH_MAX);
512 switch (gb->model) {
513 case GB_MODEL_DMG:
514 case GB_MODEL_MGB: // TODO
515 strncat(path, PATH_SEP "gb_bios.bin", PATH_MAX - strlen(path));
516 break;
517 case GB_MODEL_SGB:
518 case GB_MODEL_SGB2: // TODO
519 strncat(path, PATH_SEP "sgb_bios.bin", PATH_MAX - strlen(path));
520 break;
521 case GB_MODEL_CGB:
522 case GB_MODEL_AGB:
523 strncat(path, PATH_SEP "gbc_bios.bin", PATH_MAX - strlen(path));
524 break;
525 default:
526 break;
527 };
528 bios = VFileOpen(path, O_RDONLY);
529 if (bios && GBIsBIOS(bios)) {
530 found = true;
531 } else if (bios) {
532 bios->close(bios);
533 bios = NULL;
534 }
535 }
536 if (found && bios) {
537 GBLoadBIOS(gb, bios);
538 }
539 }
540#endif
541
542 SM83Reset(core->cpu);
543
544 if (core->opts.skipBios) {
545 GBSkipBIOS(core->board);
546 }
547}
548
549static void _GBCoreRunFrame(struct mCore* core) {
550 struct GB* gb = core->board;
551 int32_t frameCounter = gb->video.frameCounter;
552 while (gb->video.frameCounter == frameCounter) {
553 SM83Run(core->cpu);
554 }
555}
556
557static void _GBCoreRunLoop(struct mCore* core) {
558 SM83Run(core->cpu);
559}
560
561static void _GBCoreStep(struct mCore* core) {
562 struct SM83Core* cpu = core->cpu;
563 do {
564 SM83Tick(cpu);
565 } while (cpu->executionState != SM83_CORE_FETCH);
566}
567
568static size_t _GBCoreStateSize(struct mCore* core) {
569 UNUSED(core);
570 return sizeof(struct GBSerializedState);
571}
572
573static bool _GBCoreLoadState(struct mCore* core, const void* state) {
574 return GBDeserialize(core->board, state);
575}
576
577static bool _GBCoreSaveState(struct mCore* core, void* state) {
578 struct SM83Core* cpu = core->cpu;
579 while (cpu->executionState != SM83_CORE_FETCH) {
580 SM83Tick(cpu);
581 }
582 GBSerialize(core->board, state);
583 return true;
584}
585
586static void _GBCoreSetKeys(struct mCore* core, uint32_t keys) {
587 struct GBCore* gbcore = (struct GBCore*) core;
588 gbcore->keys = keys;
589 GBTestKeypadIRQ(core->board);
590}
591
592static void _GBCoreAddKeys(struct mCore* core, uint32_t keys) {
593 struct GBCore* gbcore = (struct GBCore*) core;
594 gbcore->keys |= keys;
595 GBTestKeypadIRQ(core->board);
596}
597
598static void _GBCoreClearKeys(struct mCore* core, uint32_t keys) {
599 struct GBCore* gbcore = (struct GBCore*) core;
600 gbcore->keys &= ~keys;
601}
602
603static void _GBCoreSetCursorLocation(struct mCore* core, int x, int y) {
604 UNUSED(core);
605 UNUSED(x);
606 UNUSED(y);
607}
608
609static void _GBCoreSetCursorDown(struct mCore* core, bool down) {
610 UNUSED(core);
611 UNUSED(down);
612}
613
614static int32_t _GBCoreFrameCounter(const struct mCore* core) {
615 const struct GB* gb = core->board;
616 return gb->video.frameCounter;
617}
618
619static int32_t _GBCoreFrameCycles(const struct mCore* core) {
620 UNUSED(core);
621 return GB_VIDEO_TOTAL_LENGTH;
622}
623
624static int32_t _GBCoreFrequency(const struct mCore* core) {
625 UNUSED(core);
626 // TODO: GB differences
627 return DMG_SM83_FREQUENCY;
628}
629
630static void _GBCoreGetGameTitle(const struct mCore* core, char* title) {
631 GBGetGameTitle(core->board, title);
632}
633
634static void _GBCoreGetGameCode(const struct mCore* core, char* title) {
635 GBGetGameCode(core->board, title);
636}
637
638static void _GBCoreSetPeripheral(struct mCore* core, int type, void* periph) {
639 struct GB* gb = core->board;
640 switch (type) {
641 case mPERIPH_ROTATION:
642 gb->memory.rotation = periph;
643 break;
644 case mPERIPH_RUMBLE:
645 gb->memory.rumble = periph;
646 break;
647 case mPERIPH_IMAGE_SOURCE:
648 gb->memory.cam = periph;
649 break;
650 default:
651 return;
652 }
653}
654
655static uint32_t _GBCoreBusRead8(struct mCore* core, uint32_t address) {
656 struct SM83Core* cpu = core->cpu;
657 return cpu->memory.load8(cpu, address);
658}
659
660static uint32_t _GBCoreBusRead16(struct mCore* core, uint32_t address) {
661 struct SM83Core* cpu = core->cpu;
662 return cpu->memory.load8(cpu, address) | (cpu->memory.load8(cpu, address + 1) << 8);
663}
664
665static uint32_t _GBCoreBusRead32(struct mCore* core, uint32_t address) {
666 struct SM83Core* cpu = core->cpu;
667 return cpu->memory.load8(cpu, address) | (cpu->memory.load8(cpu, address + 1) << 8) |
668 (cpu->memory.load8(cpu, address + 2) << 16) | (cpu->memory.load8(cpu, address + 3) << 24);
669}
670
671static void _GBCoreBusWrite8(struct mCore* core, uint32_t address, uint8_t value) {
672 struct SM83Core* cpu = core->cpu;
673 cpu->memory.store8(cpu, address, value);
674}
675
676static void _GBCoreBusWrite16(struct mCore* core, uint32_t address, uint16_t value) {
677 struct SM83Core* cpu = core->cpu;
678 cpu->memory.store8(cpu, address, value);
679 cpu->memory.store8(cpu, address + 1, value >> 8);
680}
681
682static void _GBCoreBusWrite32(struct mCore* core, uint32_t address, uint32_t value) {
683 struct SM83Core* cpu = core->cpu;
684 cpu->memory.store8(cpu, address, value);
685 cpu->memory.store8(cpu, address + 1, value >> 8);
686 cpu->memory.store8(cpu, address + 2, value >> 16);
687 cpu->memory.store8(cpu, address + 3, value >> 24);
688}
689
690static uint32_t _GBCoreRawRead8(struct mCore* core, uint32_t address, int segment) {
691 struct SM83Core* cpu = core->cpu;
692 return GBView8(cpu, address, segment);
693}
694
695static uint32_t _GBCoreRawRead16(struct mCore* core, uint32_t address, int segment) {
696 struct SM83Core* cpu = core->cpu;
697 return GBView8(cpu, address, segment) | (GBView8(cpu, address + 1, segment) << 8);
698}
699
700static uint32_t _GBCoreRawRead32(struct mCore* core, uint32_t address, int segment) {
701 struct SM83Core* cpu = core->cpu;
702 return GBView8(cpu, address, segment) | (GBView8(cpu, address + 1, segment) << 8) |
703 (GBView8(cpu, address + 2, segment) << 16) | (GBView8(cpu, address + 3, segment) << 24);
704}
705
706static void _GBCoreRawWrite8(struct mCore* core, uint32_t address, int segment, uint8_t value) {
707 struct SM83Core* cpu = core->cpu;
708 GBPatch8(cpu, address, value, NULL, segment);
709}
710
711static void _GBCoreRawWrite16(struct mCore* core, uint32_t address, int segment, uint16_t value) {
712 struct SM83Core* cpu = core->cpu;
713 GBPatch8(cpu, address, value, NULL, segment);
714 GBPatch8(cpu, address + 1, value >> 8, NULL, segment);
715}
716
717static void _GBCoreRawWrite32(struct mCore* core, uint32_t address, int segment, uint32_t value) {
718 struct SM83Core* cpu = core->cpu;
719 GBPatch8(cpu, address, value, NULL, segment);
720 GBPatch8(cpu, address + 1, value >> 8, NULL, segment);
721 GBPatch8(cpu, address + 2, value >> 16, NULL, segment);
722 GBPatch8(cpu, address + 3, value >> 24, NULL, segment);
723}
724
725size_t _GBListMemoryBlocks(const struct mCore* core, const struct mCoreMemoryBlock** blocks) {
726 const struct GB* gb = core->board;
727 switch (gb->model) {
728 case GB_MODEL_DMG:
729 case GB_MODEL_MGB:
730 case GB_MODEL_SGB:
731 case GB_MODEL_SGB2:
732 default:
733 *blocks = _GBMemoryBlocks;
734 return sizeof(_GBMemoryBlocks) / sizeof(*_GBMemoryBlocks);
735 case GB_MODEL_CGB:
736 case GB_MODEL_AGB:
737 *blocks = _GBCMemoryBlocks;
738 return sizeof(_GBCMemoryBlocks) / sizeof(*_GBCMemoryBlocks);
739 }
740}
741
742void* _GBGetMemoryBlock(struct mCore* core, size_t id, size_t* sizeOut) {
743 struct GB* gb = core->board;
744 bool isCgb = gb->model >= GB_MODEL_CGB;
745 switch (id) {
746 default:
747 return NULL;
748 case GB_REGION_CART_BANK0:
749 *sizeOut = gb->memory.romSize;
750 return gb->memory.rom;
751 case GB_REGION_VRAM:
752 *sizeOut = GB_SIZE_WORKING_RAM_BANK0 * (isCgb ? 1 : 2);
753 return gb->video.vram;
754 case GB_REGION_EXTERNAL_RAM:
755 *sizeOut = gb->sramSize;
756 return gb->memory.sram;
757 case GB_REGION_WORKING_RAM_BANK0:
758 *sizeOut = GB_SIZE_VRAM * (isCgb ? 8 : 2);
759 return gb->memory.wram;
760 case GB_BASE_OAM:
761 *sizeOut = GB_SIZE_OAM;
762 return gb->video.oam.raw;
763 case GB_BASE_HRAM:
764 *sizeOut = GB_SIZE_HRAM;
765 return gb->memory.hram;
766 }
767}
768
769#ifdef USE_DEBUGGERS
770static bool _GBCoreSupportsDebuggerType(struct mCore* core, enum mDebuggerType type) {
771 UNUSED(core);
772 switch (type) {
773 case DEBUGGER_CUSTOM:
774 case DEBUGGER_CLI:
775 return true;
776 default:
777 return false;
778 }
779}
780
781static struct mDebuggerPlatform* _GBCoreDebuggerPlatform(struct mCore* core) {
782 struct GBCore* gbcore = (struct GBCore*) core;
783 struct GB* gb = core->board;
784 if (!gbcore->debuggerPlatform) {
785 struct SM83Debugger* platform = (struct SM83Debugger*) GBDebuggerCreate(gb);
786 gbcore->debuggerPlatform = &platform->d;
787 }
788 return gbcore->debuggerPlatform;
789}
790
791static struct CLIDebuggerSystem* _GBCoreCliDebuggerSystem(struct mCore* core) {
792 return GBCLIDebuggerCreate(core);
793}
794
795static void _GBCoreAttachDebugger(struct mCore* core, struct mDebugger* debugger) {
796 struct SM83Core* cpu = core->cpu;
797 if (core->debugger) {
798 SM83HotplugDetach(cpu, CPU_COMPONENT_DEBUGGER);
799 }
800 cpu->components[CPU_COMPONENT_DEBUGGER] = &debugger->d;
801 SM83HotplugAttach(cpu, CPU_COMPONENT_DEBUGGER);
802 core->debugger = debugger;
803}
804
805static void _GBCoreDetachDebugger(struct mCore* core) {
806 struct SM83Core* cpu = core->cpu;
807 if (core->debugger) {
808 SM83HotplugDetach(cpu, CPU_COMPONENT_DEBUGGER);
809 }
810 cpu->components[CPU_COMPONENT_DEBUGGER] = NULL;
811 core->debugger = NULL;
812}
813
814static void _GBCoreLoadSymbols(struct mCore* core, struct VFile* vf) {
815 core->symbolTable = mDebuggerSymbolTableCreate();
816#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
817 if (!vf) {
818 vf = mDirectorySetOpenSuffix(&core->dirs, core->dirs.base, ".sym", O_RDONLY);
819 }
820#endif
821 if (!vf) {
822 return;
823 }
824 GBLoadSymbols(core->symbolTable, vf);
825}
826
827static bool _GBCoreLookupIdentifier(struct mCore* core, const char* name, int32_t* value, int* segment) {
828 UNUSED(core);
829 *segment = -1;
830 int i;
831 for (i = 0; i < REG_MAX; ++i) {
832 const char* reg = GBIORegisterNames[i];
833 if (reg && strcasecmp(reg, name) == 0) {
834 *value = GB_BASE_IO | i;
835 return true;
836 }
837 }
838 return false;
839}
840#endif
841
842static struct mCheatDevice* _GBCoreCheatDevice(struct mCore* core) {
843 struct GBCore* gbcore = (struct GBCore*) core;
844 if (!gbcore->cheatDevice) {
845 gbcore->cheatDevice = GBCheatDeviceCreate();
846 ((struct SM83Core*) core->cpu)->components[CPU_COMPONENT_CHEAT_DEVICE] = &gbcore->cheatDevice->d;
847 SM83HotplugAttach(core->cpu, CPU_COMPONENT_CHEAT_DEVICE);
848 gbcore->cheatDevice->p = core;
849 }
850 return gbcore->cheatDevice;
851}
852
853static size_t _GBCoreSavedataClone(struct mCore* core, void** sram) {
854 struct GB* gb = core->board;
855 struct VFile* vf = gb->sramVf;
856 if (vf) {
857 *sram = malloc(vf->size(vf));
858 vf->seek(vf, 0, SEEK_SET);
859 return vf->read(vf, *sram, vf->size(vf));
860 }
861 if (gb->sramSize) {
862 *sram = malloc(gb->sramSize);
863 memcpy(*sram, gb->memory.sram, gb->sramSize);
864 return gb->sramSize;
865 }
866 *sram = NULL;
867 return 0;
868}
869
870static bool _GBCoreSavedataRestore(struct mCore* core, const void* sram, size_t size, bool writeback) {
871 struct GB* gb = core->board;
872 if (!writeback) {
873 struct VFile* vf = VFileMemChunk(sram, size);
874 GBSavedataMask(gb, vf, true);
875 return true;
876 }
877 struct VFile* vf = gb->sramVf;
878 if (vf) {
879 vf->seek(vf, 0, SEEK_SET);
880 return vf->write(vf, sram, size) > 0;
881 }
882 if (size > 0x20000) {
883 size = 0x20000;
884 }
885 GBResizeSram(gb, size);
886 memcpy(gb->memory.sram, sram, size);
887 return true;
888}
889
890static size_t _GBCoreListVideoLayers(const struct mCore* core, const struct mCoreChannelInfo** info) {
891 UNUSED(core);
892 if (info) {
893 *info = _GBVideoLayers;
894 }
895 return sizeof(_GBVideoLayers) / sizeof(*_GBVideoLayers);
896}
897
898static size_t _GBCoreListAudioChannels(const struct mCore* core, const struct mCoreChannelInfo** info) {
899 UNUSED(core);
900 if (info) {
901 *info = _GBAudioChannels;
902 }
903 return sizeof(_GBAudioChannels) / sizeof(*_GBAudioChannels);
904}
905
906static void _GBCoreEnableVideoLayer(struct mCore* core, size_t id, bool enable) {
907 struct GB* gb = core->board;
908 switch (id) {
909 case 0:
910 gb->video.renderer->disableBG = !enable;
911 break;
912 case 1:
913 gb->video.renderer->disableWIN = !enable;
914 break;
915 case 2:
916 gb->video.renderer->disableOBJ = !enable;
917 break;
918 default:
919 break;
920 }
921}
922
923static void _GBCoreEnableAudioChannel(struct mCore* core, size_t id, bool enable) {
924 struct GB* gb = core->board;
925 switch (id) {
926 case 0:
927 case 1:
928 case 2:
929 case 3:
930 gb->audio.forceDisableCh[id] = !enable;
931 break;
932 default:
933 break;
934 }
935}
936
937static void _GBCoreAdjustVideoLayer(struct mCore* core, size_t id, int32_t x, int32_t y) {
938 struct GBCore* gbcore = (struct GBCore*) core;
939 switch (id) {
940 case 0:
941 gbcore->renderer.offsetScx = x;
942 gbcore->renderer.offsetScy = y;
943 break;
944 case 1:
945 gbcore->renderer.offsetWx = x;
946 gbcore->renderer.offsetWy = y;
947 break;
948 case 2:
949 gbcore->renderer.objOffsetX = x;
950 gbcore->renderer.objOffsetY = y;
951 break;
952 default:
953 return;
954 }
955}
956
957#ifndef MINIMAL_CORE
958static void _GBCoreStartVideoLog(struct mCore* core, struct mVideoLogContext* context) {
959 struct GBCore* gbcore = (struct GBCore*) core;
960 struct GB* gb = core->board;
961 gbcore->logContext = context;
962
963 int channelId = mVideoLoggerAddChannel(context);
964 gbcore->proxyRenderer.logger = malloc(sizeof(struct mVideoLogger));
965 mVideoLoggerRendererCreate(gbcore->proxyRenderer.logger, false);
966 mVideoLoggerAttachChannel(gbcore->proxyRenderer.logger, context, channelId);
967 gbcore->proxyRenderer.logger->block = false;
968
969 GBVideoProxyRendererCreate(&gbcore->proxyRenderer, &gbcore->renderer.d);
970 GBVideoProxyRendererShim(&gb->video, &gbcore->proxyRenderer);
971}
972
973static void _GBCoreEndVideoLog(struct mCore* core) {
974 struct GBCore* gbcore = (struct GBCore*) core;
975 struct GB* gb = core->board;
976 if (gbcore->proxyRenderer.logger) {
977 GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
978 free(gbcore->proxyRenderer.logger);
979 gbcore->proxyRenderer.logger = NULL;
980 }
981}
982#endif
983
984struct mCore* GBCoreCreate(void) {
985 struct GBCore* gbcore = malloc(sizeof(*gbcore));
986 struct mCore* core = &gbcore->d;
987 memset(&core->opts, 0, sizeof(core->opts));
988 core->cpu = NULL;
989 core->board = NULL;
990 core->debugger = NULL;
991 core->symbolTable = NULL;
992 core->init = _GBCoreInit;
993 core->deinit = _GBCoreDeinit;
994 core->platform = _GBCorePlatform;
995 core->supportsFeature = _GBCoreSupportsFeature;
996 core->setSync = _GBCoreSetSync;
997 core->loadConfig = _GBCoreLoadConfig;
998 core->reloadConfigOption = _GBCoreReloadConfigOption;
999 core->desiredVideoDimensions = _GBCoreDesiredVideoDimensions;
1000 core->setVideoBuffer = _GBCoreSetVideoBuffer;
1001 core->setVideoGLTex = _GBCoreSetVideoGLTex;
1002 core->getPixels = _GBCoreGetPixels;
1003 core->putPixels = _GBCorePutPixels;
1004 core->getAudioChannel = _GBCoreGetAudioChannel;
1005 core->setAudioBufferSize = _GBCoreSetAudioBufferSize;
1006 core->getAudioBufferSize = _GBCoreGetAudioBufferSize;
1007 core->setAVStream = _GBCoreSetAVStream;
1008 core->addCoreCallbacks = _GBCoreAddCoreCallbacks;
1009 core->clearCoreCallbacks = _GBCoreClearCoreCallbacks;
1010 core->isROM = GBIsROM;
1011 core->loadROM = _GBCoreLoadROM;
1012 core->loadBIOS = _GBCoreLoadBIOS;
1013 core->loadSave = _GBCoreLoadSave;
1014 core->loadTemporarySave = _GBCoreLoadTemporarySave;
1015 core->loadPatch = _GBCoreLoadPatch;
1016 core->unloadROM = _GBCoreUnloadROM;
1017 core->checksum = _GBCoreChecksum;
1018 core->reset = _GBCoreReset;
1019 core->runFrame = _GBCoreRunFrame;
1020 core->runLoop = _GBCoreRunLoop;
1021 core->step = _GBCoreStep;
1022 core->stateSize = _GBCoreStateSize;
1023 core->loadState = _GBCoreLoadState;
1024 core->saveState = _GBCoreSaveState;
1025 core->setKeys = _GBCoreSetKeys;
1026 core->addKeys = _GBCoreAddKeys;
1027 core->clearKeys = _GBCoreClearKeys;
1028 core->setCursorLocation = _GBCoreSetCursorLocation;
1029 core->setCursorDown = _GBCoreSetCursorDown;
1030 core->frameCounter = _GBCoreFrameCounter;
1031 core->frameCycles = _GBCoreFrameCycles;
1032 core->frequency = _GBCoreFrequency;
1033 core->getGameTitle = _GBCoreGetGameTitle;
1034 core->getGameCode = _GBCoreGetGameCode;
1035 core->setPeripheral = _GBCoreSetPeripheral;
1036 core->busRead8 = _GBCoreBusRead8;
1037 core->busRead16 = _GBCoreBusRead16;
1038 core->busRead32 = _GBCoreBusRead32;
1039 core->busWrite8 = _GBCoreBusWrite8;
1040 core->busWrite16 = _GBCoreBusWrite16;
1041 core->busWrite32 = _GBCoreBusWrite32;
1042 core->rawRead8 = _GBCoreRawRead8;
1043 core->rawRead16 = _GBCoreRawRead16;
1044 core->rawRead32 = _GBCoreRawRead32;
1045 core->rawWrite8 = _GBCoreRawWrite8;
1046 core->rawWrite16 = _GBCoreRawWrite16;
1047 core->rawWrite32 = _GBCoreRawWrite32;
1048 core->listMemoryBlocks = _GBListMemoryBlocks;
1049 core->getMemoryBlock = _GBGetMemoryBlock;
1050#ifdef USE_DEBUGGERS
1051 core->supportsDebuggerType = _GBCoreSupportsDebuggerType;
1052 core->debuggerPlatform = _GBCoreDebuggerPlatform;
1053 core->cliDebuggerSystem = _GBCoreCliDebuggerSystem;
1054 core->attachDebugger = _GBCoreAttachDebugger;
1055 core->detachDebugger = _GBCoreDetachDebugger;
1056 core->loadSymbols = _GBCoreLoadSymbols;
1057 core->lookupIdentifier = _GBCoreLookupIdentifier;
1058#endif
1059 core->cheatDevice = _GBCoreCheatDevice;
1060 core->savedataClone = _GBCoreSavedataClone;
1061 core->savedataRestore = _GBCoreSavedataRestore;
1062 core->listVideoLayers = _GBCoreListVideoLayers;
1063 core->listAudioChannels = _GBCoreListAudioChannels;
1064 core->enableVideoLayer = _GBCoreEnableVideoLayer;
1065 core->enableAudioChannel = _GBCoreEnableAudioChannel;
1066 core->adjustVideoLayer = _GBCoreAdjustVideoLayer;
1067#ifndef MINIMAL_CORE
1068 core->startVideoLog = _GBCoreStartVideoLog;
1069 core->endVideoLog = _GBCoreEndVideoLog;
1070#endif
1071 return core;
1072}
1073
1074#ifndef MINIMAL_CORE
1075static void _GBVLPStartFrameCallback(void *context) {
1076 struct mCore* core = context;
1077 struct GBCore* gbcore = (struct GBCore*) core;
1078 struct GB* gb = core->board;
1079
1080 if (!mVideoLoggerRendererRun(gbcore->proxyRenderer.logger, true)) {
1081 GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
1082 mVideoLogContextRewind(gbcore->logContext, core);
1083 GBVideoProxyRendererShim(&gb->video, &gbcore->proxyRenderer);
1084 gb->earlyExit = true;
1085 }
1086}
1087
1088static bool _GBVLPInit(struct mCore* core) {
1089 struct GBCore* gbcore = (struct GBCore*) core;
1090 if (!_GBCoreInit(core)) {
1091 return false;
1092 }
1093 gbcore->proxyRenderer.logger = malloc(sizeof(struct mVideoLogger));
1094 mVideoLoggerRendererCreate(gbcore->proxyRenderer.logger, true);
1095 GBVideoProxyRendererCreate(&gbcore->proxyRenderer, NULL);
1096 memset(&gbcore->logCallbacks, 0, sizeof(gbcore->logCallbacks));
1097 gbcore->logCallbacks.videoFrameStarted = _GBVLPStartFrameCallback;
1098 gbcore->logCallbacks.context = core;
1099 core->addCoreCallbacks(core, &gbcore->logCallbacks);
1100 core->videoLogger = gbcore->proxyRenderer.logger;
1101 return true;
1102}
1103
1104static void _GBVLPDeinit(struct mCore* core) {
1105 struct GBCore* gbcore = (struct GBCore*) core;
1106 if (gbcore->logContext) {
1107 mVideoLogContextDestroy(core, gbcore->logContext, true);
1108 }
1109 _GBCoreDeinit(core);
1110}
1111
1112static void _GBVLPReset(struct mCore* core) {
1113 struct GBCore* gbcore = (struct GBCore*) core;
1114 struct GB* gb = (struct GB*) core->board;
1115 if (gb->video.renderer == &gbcore->proxyRenderer.d) {
1116 GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
1117 } else if (gbcore->renderer.outputBuffer) {
1118 struct GBVideoRenderer* renderer = &gbcore->renderer.d;
1119 GBVideoAssociateRenderer(&gb->video, renderer);
1120 }
1121
1122 SM83Reset(core->cpu);
1123 mVideoLogContextRewind(gbcore->logContext, core);
1124 GBVideoProxyRendererShim(&gb->video, &gbcore->proxyRenderer);
1125
1126 // Make sure CPU loop never spins
1127 gb->memory.ie = 0;
1128 gb->memory.ime = false;
1129 GBHalt(gb->cpu);
1130}
1131
1132static bool _GBVLPLoadROM(struct mCore* core, struct VFile* vf) {
1133 struct GBCore* gbcore = (struct GBCore*) core;
1134 gbcore->logContext = mVideoLogContextCreate(NULL);
1135 if (!mVideoLogContextLoad(gbcore->logContext, vf)) {
1136 mVideoLogContextDestroy(core, gbcore->logContext, false);
1137 gbcore->logContext = NULL;
1138 return false;
1139 }
1140 mVideoLoggerAttachChannel(gbcore->proxyRenderer.logger, gbcore->logContext, 0);
1141 return true;
1142}
1143
1144static bool _GBVLPLoadState(struct mCore* core, const void* buffer) {
1145 struct GB* gb = (struct GB*) core->board;
1146 const struct GBSerializedState* state = buffer;
1147
1148 gb->timing.root = NULL;
1149 gb->model = state->model;
1150
1151 gb->cpu->pc = GB_BASE_HRAM;
1152 gb->cpu->memory.setActiveRegion(gb->cpu, gb->cpu->pc);
1153
1154 GBVideoReset(&gb->video);
1155 GBVideoDeserialize(&gb->video, state);
1156 GBIODeserialize(gb, state);
1157 GBAudioReset(&gb->audio);
1158
1159 // Make sure CPU loop never spins
1160 gb->memory.ie = 0;
1161 gb->memory.ime = false;
1162 GBHalt(gb->cpu);
1163
1164 return true;
1165}
1166
1167static bool _returnTrue(struct VFile* vf) {
1168 UNUSED(vf);
1169 return true;
1170}
1171
1172struct mCore* GBVideoLogPlayerCreate(void) {
1173 struct mCore* core = GBCoreCreate();
1174 core->init = _GBVLPInit;
1175 core->deinit = _GBVLPDeinit;
1176 core->reset = _GBVLPReset;
1177 core->loadROM = _GBVLPLoadROM;
1178 core->loadState = _GBVLPLoadState;
1179 core->isROM = _returnTrue;
1180 return core;
1181}
1182#else
1183struct mCore* GBVideoLogPlayerCreate(void) {
1184 return false;
1185}
1186#endif