src/gba/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/gba/core.h>
7
8#include <mgba/core/core.h>
9#include <mgba/core/log.h>
10#include <mgba/internal/arm/debugger/debugger.h>
11#include <mgba/internal/debugger/symbols.h>
12#include <mgba/internal/gba/cheats.h>
13#include <mgba/internal/gba/gba.h>
14#include <mgba/internal/gba/io.h>
15#include <mgba/internal/gba/extra/cli.h>
16#include <mgba/internal/gba/overrides.h>
17#ifndef DISABLE_THREADING
18#include <mgba/feature/thread-proxy.h>
19#endif
20#include <mgba/internal/gba/renderers/proxy.h>
21#include <mgba/internal/gba/renderers/video-software.h>
22#include <mgba/internal/gba/savedata.h>
23#include <mgba/internal/gba/serialize.h>
24#ifdef USE_ELF
25#include <mgba-util/elf-read.h>
26#endif
27#include <mgba-util/memory.h>
28#include <mgba-util/patch.h>
29#include <mgba-util/vfs.h>
30
31static const struct mCoreChannelInfo _GBAVideoLayers[] = {
32 { 0, "bg0", "Background 0", NULL },
33 { 1, "bg1", "Background 1", NULL },
34 { 2, "bg2", "Background 2", NULL },
35 { 3, "bg3", "Background 3", NULL },
36 { 4, "obj", "Objects", NULL },
37};
38
39static const struct mCoreChannelInfo _GBAAudioChannels[] = {
40 { 0, "ch1", "PSG Channel 1", "Square/Sweep" },
41 { 1, "ch2", "PSG Channel 2", "Square" },
42 { 2, "ch3", "PSG Channel 3", "PCM" },
43 { 3, "ch4", "PSG Channel 4", "Noise" },
44 { 4, "chA", "FIFO Channel A", NULL },
45 { 5, "chB", "FIFO Channel B", NULL },
46};
47
48static const struct mCoreMemoryBlock _GBAMemoryBlocks[] = {
49 { -1, "mem", "All", "All", 0, 0x10000000, 0x10000000, mCORE_MEMORY_VIRTUAL },
50 { REGION_BIOS, "bios", "BIOS", "BIOS (16kiB)", BASE_BIOS, SIZE_BIOS, SIZE_BIOS, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
51 { REGION_WORKING_RAM, "wram", "EWRAM", "Working RAM (256kiB)", BASE_WORKING_RAM, BASE_WORKING_RAM + SIZE_WORKING_RAM, SIZE_WORKING_RAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
52 { REGION_WORKING_IRAM, "iwram", "IWRAM", "Internal Working RAM (32kiB)", BASE_WORKING_IRAM, BASE_WORKING_IRAM + SIZE_WORKING_IRAM, SIZE_WORKING_IRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
53 { REGION_IO, "io", "MMIO", "Memory-Mapped I/O", BASE_IO, BASE_IO + SIZE_IO, SIZE_IO, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
54 { REGION_PALETTE_RAM, "palette", "Palette", "Palette RAM (1kiB)", BASE_PALETTE_RAM, BASE_PALETTE_RAM + SIZE_PALETTE_RAM, SIZE_PALETTE_RAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
55 { REGION_VRAM, "vram", "VRAM", "Video RAM (96kiB)", BASE_VRAM, BASE_VRAM + SIZE_VRAM, SIZE_VRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
56 { REGION_OAM, "oam", "OAM", "OBJ Attribute Memory (1kiB)", BASE_OAM, BASE_OAM + SIZE_OAM, SIZE_OAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
57 { REGION_CART0, "cart0", "ROM", "Game Pak (32MiB)", BASE_CART0, BASE_CART0 + SIZE_CART0, SIZE_CART0, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
58 { REGION_CART1, "cart1", "ROM WS1", "Game Pak (Waitstate 1)", BASE_CART1, BASE_CART1 + SIZE_CART1, SIZE_CART1, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
59 { REGION_CART2, "cart2", "ROM WS2", "Game Pak (Waitstate 2)", BASE_CART2, BASE_CART2 + SIZE_CART2, SIZE_CART2, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
60};
61
62static const struct mCoreMemoryBlock _GBAMemoryBlocksSRAM[] = {
63 { -1, "mem", "All", "All", 0, 0x10000000, 0x10000000, mCORE_MEMORY_VIRTUAL },
64 { REGION_BIOS, "bios", "BIOS", "BIOS (16kiB)", BASE_BIOS, SIZE_BIOS, SIZE_BIOS, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
65 { REGION_WORKING_RAM, "wram", "EWRAM", "Working RAM (256kiB)", BASE_WORKING_RAM, BASE_WORKING_RAM + SIZE_WORKING_RAM, SIZE_WORKING_RAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
66 { REGION_WORKING_IRAM, "iwram", "IWRAM", "Internal Working RAM (32kiB)", BASE_WORKING_IRAM, BASE_WORKING_IRAM + SIZE_WORKING_IRAM, SIZE_WORKING_IRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
67 { REGION_IO, "io", "MMIO", "Memory-Mapped I/O", BASE_IO, BASE_IO + SIZE_IO, SIZE_IO, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
68 { REGION_PALETTE_RAM, "palette", "Palette", "Palette RAM (1kiB)", BASE_PALETTE_RAM, BASE_PALETTE_RAM + SIZE_PALETTE_RAM, SIZE_PALETTE_RAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
69 { REGION_VRAM, "vram", "VRAM", "Video RAM (96kiB)", BASE_VRAM, BASE_VRAM + SIZE_VRAM, SIZE_VRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
70 { REGION_OAM, "oam", "OAM", "OBJ Attribute Memory (1kiB)", BASE_OAM, BASE_OAM + SIZE_OAM, SIZE_OAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
71 { REGION_CART0, "cart0", "ROM", "Game Pak (32MiB)", BASE_CART0, BASE_CART0 + SIZE_CART0, SIZE_CART0, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
72 { REGION_CART1, "cart1", "ROM WS1", "Game Pak (Waitstate 1)", BASE_CART1, BASE_CART1 + SIZE_CART1, SIZE_CART1, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
73 { REGION_CART2, "cart2", "ROM WS2", "Game Pak (Waitstate 2)", BASE_CART2, BASE_CART2 + SIZE_CART2, SIZE_CART2, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
74 { REGION_CART_SRAM, "sram", "SRAM", "Static RAM (64kiB)", BASE_CART_SRAM, BASE_CART_SRAM + SIZE_CART_SRAM, SIZE_CART_SRAM, true },
75};
76
77static const struct mCoreMemoryBlock _GBAMemoryBlocksFlash512[] = {
78 { -1, "mem", "All", "All", 0, 0x10000000, 0x10000000, mCORE_MEMORY_VIRTUAL },
79 { REGION_BIOS, "bios", "BIOS", "BIOS (16kiB)", BASE_BIOS, SIZE_BIOS, SIZE_BIOS, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
80 { REGION_WORKING_RAM, "wram", "EWRAM", "Working RAM (256kiB)", BASE_WORKING_RAM, BASE_WORKING_RAM + SIZE_WORKING_RAM, SIZE_WORKING_RAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
81 { REGION_WORKING_IRAM, "iwram", "IWRAM", "Internal Working RAM (32kiB)", BASE_WORKING_IRAM, BASE_WORKING_IRAM + SIZE_WORKING_IRAM, SIZE_WORKING_IRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
82 { REGION_IO, "io", "MMIO", "Memory-Mapped I/O", BASE_IO, BASE_IO + SIZE_IO, SIZE_IO, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
83 { REGION_PALETTE_RAM, "palette", "Palette", "Palette RAM (1kiB)", BASE_PALETTE_RAM, BASE_PALETTE_RAM + SIZE_PALETTE_RAM, SIZE_PALETTE_RAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
84 { REGION_VRAM, "vram", "VRAM", "Video RAM (96kiB)", BASE_VRAM, BASE_VRAM + SIZE_VRAM, SIZE_VRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
85 { REGION_OAM, "oam", "OAM", "OBJ Attribute Memory (1kiB)", BASE_OAM, BASE_OAM + SIZE_OAM, SIZE_OAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
86 { REGION_CART0, "cart0", "ROM", "Game Pak (32MiB)", BASE_CART0, BASE_CART0 + SIZE_CART0, SIZE_CART0, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
87 { REGION_CART1, "cart1", "ROM WS1", "Game Pak (Waitstate 1)", BASE_CART1, BASE_CART1 + SIZE_CART1, SIZE_CART1, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
88 { REGION_CART2, "cart2", "ROM WS2", "Game Pak (Waitstate 2)", BASE_CART2, BASE_CART2 + SIZE_CART2, SIZE_CART2, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
89 { REGION_CART_SRAM, "sram", "Flash", "Flash Memory (64kiB)", BASE_CART_SRAM, BASE_CART_SRAM + SIZE_CART_FLASH512, SIZE_CART_FLASH512, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
90};
91
92static const struct mCoreMemoryBlock _GBAMemoryBlocksFlash1M[] = {
93 { -1, "mem", "All", "All", 0, 0x10000000, 0x10000000, mCORE_MEMORY_VIRTUAL },
94 { REGION_BIOS, "bios", "BIOS", "BIOS (16kiB)", BASE_BIOS, SIZE_BIOS, SIZE_BIOS, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
95 { REGION_WORKING_RAM, "wram", "EWRAM", "Working RAM (256kiB)", BASE_WORKING_RAM, BASE_WORKING_RAM + SIZE_WORKING_RAM, SIZE_WORKING_RAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
96 { REGION_WORKING_IRAM, "iwram", "IWRAM", "Internal Working RAM (32kiB)", BASE_WORKING_IRAM, BASE_WORKING_IRAM + SIZE_WORKING_IRAM, SIZE_WORKING_IRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
97 { REGION_IO, "io", "MMIO", "Memory-Mapped I/O", BASE_IO, BASE_IO + SIZE_IO, SIZE_IO, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
98 { REGION_PALETTE_RAM, "palette", "Palette", "Palette RAM (1kiB)", BASE_PALETTE_RAM, BASE_PALETTE_RAM + SIZE_PALETTE_RAM, SIZE_PALETTE_RAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
99 { REGION_VRAM, "vram", "VRAM", "Video RAM (96kiB)", BASE_VRAM, BASE_VRAM + SIZE_VRAM, SIZE_VRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
100 { REGION_OAM, "oam", "OAM", "OBJ Attribute Memory (1kiB)", BASE_OAM, BASE_OAM + SIZE_OAM, SIZE_OAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
101 { REGION_CART0, "cart0", "ROM", "Game Pak (32MiB)", BASE_CART0, BASE_CART0 + SIZE_CART0, SIZE_CART0, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
102 { REGION_CART1, "cart1", "ROM WS1", "Game Pak (Waitstate 1)", BASE_CART1, BASE_CART1 + SIZE_CART1, SIZE_CART1, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
103 { REGION_CART2, "cart2", "ROM WS2", "Game Pak (Waitstate 2)", BASE_CART2, BASE_CART2 + SIZE_CART2, SIZE_CART2, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
104 { REGION_CART_SRAM, "sram", "Flash", "Flash Memory (64kiB)", BASE_CART_SRAM, BASE_CART_SRAM + SIZE_CART_FLASH512, SIZE_CART_FLASH1M, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED, 1 },
105};
106
107static const struct mCoreMemoryBlock _GBAMemoryBlocksEEPROM[] = {
108 { -1, "mem", "All", "All", 0, 0x10000000, 0x10000000, mCORE_MEMORY_VIRTUAL },
109 { REGION_BIOS, "bios", "BIOS", "BIOS (16kiB)", BASE_BIOS, SIZE_BIOS, SIZE_BIOS, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
110 { REGION_WORKING_RAM, "wram", "EWRAM", "Working RAM (256kiB)", BASE_WORKING_RAM, BASE_WORKING_RAM + SIZE_WORKING_RAM, SIZE_WORKING_RAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
111 { REGION_WORKING_IRAM, "iwram", "IWRAM", "Internal Working RAM (32kiB)", BASE_WORKING_IRAM, BASE_WORKING_IRAM + SIZE_WORKING_IRAM, SIZE_WORKING_IRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
112 { REGION_IO, "io", "MMIO", "Memory-Mapped I/O", BASE_IO, BASE_IO + SIZE_IO, SIZE_IO, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
113 { REGION_PALETTE_RAM, "palette", "Palette", "Palette RAM (1kiB)", BASE_PALETTE_RAM, BASE_PALETTE_RAM + SIZE_PALETTE_RAM, SIZE_PALETTE_RAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
114 { REGION_VRAM, "vram", "VRAM", "Video RAM (96kiB)", BASE_VRAM, BASE_VRAM + SIZE_VRAM, SIZE_VRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
115 { REGION_OAM, "oam", "OAM", "OBJ Attribute Memory (1kiB)", BASE_OAM, BASE_OAM + SIZE_OAM, SIZE_OAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
116 { REGION_CART0, "cart0", "ROM", "Game Pak (32MiB)", BASE_CART0, BASE_CART0 + SIZE_CART0, SIZE_CART0, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
117 { REGION_CART1, "cart1", "ROM WS1", "Game Pak (Waitstate 1)", BASE_CART1, BASE_CART1 + SIZE_CART1, SIZE_CART1, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
118 { REGION_CART2, "cart2", "ROM WS2", "Game Pak (Waitstate 2)", BASE_CART2, BASE_CART2 + SIZE_CART2, SIZE_CART2, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED },
119 { REGION_CART_SRAM_MIRROR, "eeprom", "EEPROM", "EEPROM (8kiB)", 0, SIZE_CART_EEPROM, SIZE_CART_EEPROM, mCORE_MEMORY_RW },
120};
121
122struct mVideoLogContext;
123struct GBACore {
124 struct mCore d;
125 struct GBAVideoSoftwareRenderer renderer;
126 struct GBAVideoProxyRenderer proxyRenderer;
127 struct mVideoLogContext* logContext;
128 struct mCoreCallbacks logCallbacks;
129#ifndef DISABLE_THREADING
130 struct mVideoThreadProxy threadProxy;
131 int threadedVideo;
132#endif
133 int keys;
134 struct mCPUComponent* components[CPU_COMPONENT_MAX];
135 const struct Configuration* overrides;
136 struct mDebuggerPlatform* debuggerPlatform;
137 struct mCheatDevice* cheatDevice;
138};
139
140static bool _GBACoreInit(struct mCore* core) {
141 struct GBACore* gbacore = (struct GBACore*) core;
142
143 struct ARMCore* cpu = anonymousMemoryMap(sizeof(struct ARMCore));
144 struct GBA* gba = anonymousMemoryMap(sizeof(struct GBA));
145 if (!cpu || !gba) {
146 free(cpu);
147 free(gba);
148 return false;
149 }
150 core->cpu = cpu;
151 core->board = gba;
152 core->debugger = NULL;
153 core->symbolTable = NULL;
154 gbacore->overrides = NULL;
155 gbacore->debuggerPlatform = NULL;
156 gbacore->cheatDevice = NULL;
157 gbacore->logContext = NULL;
158
159 GBACreate(gba);
160 // TODO: Restore cheats
161 memset(gbacore->components, 0, sizeof(gbacore->components));
162 ARMSetComponents(cpu, &gba->d, CPU_COMPONENT_MAX, gbacore->components);
163 ARMInit(cpu);
164 mRTCGenericSourceInit(&core->rtc, core);
165 gba->rtcSource = &core->rtc.d;
166
167 GBAVideoSoftwareRendererCreate(&gbacore->renderer);
168 gbacore->renderer.outputBuffer = NULL;
169
170#ifndef DISABLE_THREADING
171 gbacore->threadedVideo = false;
172 mVideoThreadProxyCreate(&gbacore->threadProxy);
173#endif
174 gbacore->proxyRenderer.logger = NULL;
175
176 gbacore->keys = 0;
177 gba->keySource = &gbacore->keys;
178
179#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
180 mDirectorySetInit(&core->dirs);
181#endif
182
183 return true;
184}
185
186static void _GBACoreDeinit(struct mCore* core) {
187 ARMDeinit(core->cpu);
188 GBADestroy(core->board);
189 mappedMemoryFree(core->cpu, sizeof(struct ARMCore));
190 mappedMemoryFree(core->board, sizeof(struct GBA));
191#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
192 mDirectorySetDeinit(&core->dirs);
193#endif
194
195 struct GBACore* gbacore = (struct GBACore*) core;
196 free(gbacore->debuggerPlatform);
197 if (gbacore->cheatDevice) {
198 mCheatDeviceDestroy(gbacore->cheatDevice);
199 }
200 free(gbacore->cheatDevice);
201 mCoreConfigFreeOpts(&core->opts);
202 free(core);
203}
204
205static enum mPlatform _GBACorePlatform(const struct mCore* core) {
206 UNUSED(core);
207 return PLATFORM_GBA;
208}
209
210static void _GBACoreSetSync(struct mCore* core, struct mCoreSync* sync) {
211 struct GBA* gba = core->board;
212 gba->sync = sync;
213}
214
215static void _GBACoreLoadConfig(struct mCore* core, const struct mCoreConfig* config) {
216 struct GBA* gba = core->board;
217 if (core->opts.mute) {
218 gba->audio.masterVolume = 0;
219 } else {
220 gba->audio.masterVolume = core->opts.volume;
221 }
222 gba->video.frameskip = core->opts.frameskip;
223
224#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
225 struct GBACore* gbacore = (struct GBACore*) core;
226 gbacore->overrides = mCoreConfigGetOverridesConst(config);
227#endif
228
229 const char* idleOptimization = mCoreConfigGetValue(config, "idleOptimization");
230 if (idleOptimization) {
231 if (strcasecmp(idleOptimization, "ignore") == 0) {
232 gba->idleOptimization = IDLE_LOOP_IGNORE;
233 } else if (strcasecmp(idleOptimization, "remove") == 0) {
234 gba->idleOptimization = IDLE_LOOP_REMOVE;
235 } else if (strcasecmp(idleOptimization, "detect") == 0) {
236 if (gba->idleLoop == IDLE_LOOP_NONE) {
237 gba->idleOptimization = IDLE_LOOP_DETECT;
238 } else {
239 gba->idleOptimization = IDLE_LOOP_REMOVE;
240 }
241 }
242 }
243
244 mCoreConfigCopyValue(&core->config, config, "gba.bios");
245
246#ifndef DISABLE_THREADING
247 mCoreConfigGetIntValue(config, "threadedVideo", &gbacore->threadedVideo);
248#endif
249}
250
251static void _GBACoreDesiredVideoDimensions(struct mCore* core, unsigned* width, unsigned* height) {
252 UNUSED(core);
253 *width = VIDEO_HORIZONTAL_PIXELS;
254 *height = VIDEO_VERTICAL_PIXELS;
255}
256
257static void _GBACoreSetVideoBuffer(struct mCore* core, color_t* buffer, size_t stride) {
258 struct GBACore* gbacore = (struct GBACore*) core;
259 gbacore->renderer.outputBuffer = buffer;
260 gbacore->renderer.outputBufferStride = stride;
261}
262
263static void _GBACoreGetPixels(struct mCore* core, const void** buffer, size_t* stride) {
264 struct GBACore* gbacore = (struct GBACore*) core;
265 gbacore->renderer.d.getPixels(&gbacore->renderer.d, stride, buffer);
266}
267
268static void _GBACorePutPixels(struct mCore* core, const void* buffer, size_t stride) {
269 struct GBACore* gbacore = (struct GBACore*) core;
270 gbacore->renderer.d.putPixels(&gbacore->renderer.d, stride, buffer);
271}
272
273static struct blip_t* _GBACoreGetAudioChannel(struct mCore* core, int ch) {
274 struct GBA* gba = core->board;
275 switch (ch) {
276 case 0:
277 return gba->audio.psg.left;
278 case 1:
279 return gba->audio.psg.right;
280 default:
281 return NULL;
282 }
283}
284
285static void _GBACoreSetAudioBufferSize(struct mCore* core, size_t samples) {
286 struct GBA* gba = core->board;
287 GBAAudioResizeBuffer(&gba->audio, samples);
288}
289
290static size_t _GBACoreGetAudioBufferSize(struct mCore* core) {
291 struct GBA* gba = core->board;
292 return gba->audio.samples;
293}
294
295static void _GBACoreAddCoreCallbacks(struct mCore* core, struct mCoreCallbacks* coreCallbacks) {
296 struct GBA* gba = core->board;
297 *mCoreCallbacksListAppend(&gba->coreCallbacks) = *coreCallbacks;
298}
299
300static void _GBACoreClearCoreCallbacks(struct mCore* core) {
301 struct GBA* gba = core->board;
302 mCoreCallbacksListClear(&gba->coreCallbacks);
303}
304
305static void _GBACoreSetAVStream(struct mCore* core, struct mAVStream* stream) {
306 struct GBA* gba = core->board;
307 gba->stream = stream;
308 if (stream && stream->videoDimensionsChanged) {
309 stream->videoDimensionsChanged(stream, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
310 }
311}
312
313static bool _GBACoreLoadROM(struct mCore* core, struct VFile* vf) {
314#ifdef USE_ELF
315 struct ELF* elf = ELFOpen(vf);
316 if (elf) {
317 GBALoadNull(core->board);
318 bool success = mCoreLoadELF(core, elf);
319 ELFClose(elf);
320 return success;
321 }
322#endif
323 if (GBAIsMB(vf)) {
324 return GBALoadMB(core->board, vf);
325 }
326 return GBALoadROM(core->board, vf);
327}
328
329static bool _GBACoreLoadBIOS(struct mCore* core, struct VFile* vf, int type) {
330 UNUSED(type);
331 if (!GBAIsBIOS(vf)) {
332 return false;
333 }
334 GBALoadBIOS(core->board, vf);
335 return true;
336}
337
338static bool _GBACoreLoadSave(struct mCore* core, struct VFile* vf) {
339 return GBALoadSave(core->board, vf);
340}
341
342static bool _GBACoreLoadTemporarySave(struct mCore* core, struct VFile* vf) {
343 struct GBA* gba = core->board;
344 GBASavedataMask(&gba->memory.savedata, vf, false);
345 return true; // TODO: Return a real value
346}
347
348static bool _GBACoreLoadPatch(struct mCore* core, struct VFile* vf) {
349 if (!vf) {
350 return false;
351 }
352 struct Patch patch;
353 if (!loadPatch(vf, &patch)) {
354 return false;
355 }
356 GBAApplyPatch(core->board, &patch);
357 return true;
358}
359
360static void _GBACoreUnloadROM(struct mCore* core) {
361 struct GBACore* gbacore = (struct GBACore*) core;
362 struct ARMCore* cpu = core->cpu;
363 if (gbacore->cheatDevice) {
364 ARMHotplugDetach(cpu, CPU_COMPONENT_CHEAT_DEVICE);
365 cpu->components[CPU_COMPONENT_CHEAT_DEVICE] = NULL;
366 mCheatDeviceDestroy(gbacore->cheatDevice);
367 gbacore->cheatDevice = NULL;
368 }
369 return GBAUnloadROM(core->board);
370}
371
372static void _GBACoreChecksum(const struct mCore* core, void* data, enum mCoreChecksumType type) {
373 struct GBA* gba = (struct GBA*) core->board;
374 switch (type) {
375 case CHECKSUM_CRC32:
376 memcpy(data, &gba->romCrc32, sizeof(gba->romCrc32));
377 break;
378 }
379 return;
380}
381
382static void _GBACoreReset(struct mCore* core) {
383 struct GBACore* gbacore = (struct GBACore*) core;
384 struct GBA* gba = (struct GBA*) core->board;
385 if (gbacore->renderer.outputBuffer) {
386 struct GBAVideoRenderer* renderer = &gbacore->renderer.d;
387#ifndef DISABLE_THREADING
388 if (gbacore->threadedVideo) {
389 gbacore->proxyRenderer.logger = &gbacore->threadProxy.d;
390 GBAVideoProxyRendererCreate(&gbacore->proxyRenderer, renderer);
391 renderer = &gbacore->proxyRenderer.d;
392 }
393#endif
394 GBAVideoAssociateRenderer(&gba->video, renderer);
395 }
396
397 struct GBACartridgeOverride override;
398 const struct GBACartridge* cart = (const struct GBACartridge*) gba->memory.rom;
399 if (cart) {
400 memcpy(override.id, &cart->id, sizeof(override.id));
401 if (GBAOverrideFind(gbacore->overrides, &override)) {
402 GBAOverrideApply(gba, &override);
403 }
404 }
405
406#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
407 if (!gba->biosVf && core->opts.useBios) {
408 struct VFile* bios = NULL;
409 bool found = false;
410 if (core->opts.bios) {
411 bios = VFileOpen(core->opts.bios, O_RDONLY);
412 if (bios && GBAIsBIOS(bios)) {
413 found = true;
414 } else if (bios) {
415 bios->close(bios);
416 bios = NULL;
417 }
418 }
419 if (!found) {
420 const char* configPath = mCoreConfigGetValue(&core->config, "gba.bios");
421 if (configPath) {
422 bios = VFileOpen(configPath, O_RDONLY);
423 }
424 if (bios && GBAIsBIOS(bios)) {
425 found = true;
426 } else if (bios) {
427 bios->close(bios);
428 bios = NULL;
429 }
430 }
431 if (!found) {
432 char path[PATH_MAX];
433 mCoreConfigDirectory(path, PATH_MAX);
434 strncat(path, PATH_SEP "gba_bios.bin", PATH_MAX - strlen(path));
435 bios = VFileOpen(path, O_RDONLY);
436 if (bios && GBAIsBIOS(bios)) {
437 found = true;
438 } else if (bios) {
439 bios->close(bios);
440 bios = NULL;
441 }
442 }
443 if (bios) {
444 GBALoadBIOS(gba, bios);
445 }
446 }
447#endif
448
449 ARMReset(core->cpu);
450 if (core->opts.skipBios && gba->isPristine) {
451 GBASkipBIOS(core->board);
452 }
453}
454
455static void _GBACoreRunFrame(struct mCore* core) {
456 struct GBA* gba = core->board;
457 int32_t frameCounter = gba->video.frameCounter;
458 while (gba->video.frameCounter == frameCounter) {
459 ARMRunLoop(core->cpu);
460 }
461}
462
463static void _GBACoreRunLoop(struct mCore* core) {
464 ARMRunLoop(core->cpu);
465}
466
467static void _GBACoreStep(struct mCore* core) {
468 ARMRun(core->cpu);
469}
470
471static size_t _GBACoreStateSize(struct mCore* core) {
472 UNUSED(core);
473 return sizeof(struct GBASerializedState);
474}
475
476static bool _GBACoreLoadState(struct mCore* core, const void* state) {
477 return GBADeserialize(core->board, state);
478}
479
480static bool _GBACoreSaveState(struct mCore* core, void* state) {
481 GBASerialize(core->board, state);
482 return true;
483}
484
485static void _GBACoreSetKeys(struct mCore* core, uint32_t keys) {
486 struct GBACore* gbacore = (struct GBACore*) core;
487 gbacore->keys = keys;
488 GBATestKeypadIRQ(core->board);
489}
490
491static void _GBACoreAddKeys(struct mCore* core, uint32_t keys) {
492 struct GBACore* gbacore = (struct GBACore*) core;
493 gbacore->keys |= keys;
494 GBATestKeypadIRQ(core->board);
495}
496
497static void _GBACoreClearKeys(struct mCore* core, uint32_t keys) {
498 struct GBACore* gbacore = (struct GBACore*) core;
499 gbacore->keys &= ~keys;
500 GBATestKeypadIRQ(core->board);
501}
502
503static int32_t _GBACoreFrameCounter(const struct mCore* core) {
504 const struct GBA* gba = core->board;
505 return gba->video.frameCounter;
506}
507
508static int32_t _GBACoreFrameCycles(const struct mCore* core) {
509 UNUSED(core);
510 return VIDEO_TOTAL_LENGTH;
511}
512
513static int32_t _GBACoreFrequency(const struct mCore* core) {
514 UNUSED(core);
515 return GBA_ARM7TDMI_FREQUENCY;
516}
517
518static void _GBACoreGetGameTitle(const struct mCore* core, char* title) {
519 GBAGetGameTitle(core->board, title);
520}
521
522static void _GBACoreGetGameCode(const struct mCore* core, char* title) {
523 GBAGetGameCode(core->board, title);
524}
525
526static void _GBACoreSetPeripheral(struct mCore* core, int type, void* periph) {
527 struct GBA* gba = core->board;
528 switch (type) {
529 case mPERIPH_ROTATION:
530 gba->rotationSource = periph;
531 break;
532 case mPERIPH_RUMBLE:
533 gba->rumble = periph;
534 break;
535 case mPERIPH_GBA_LUMINANCE:
536 gba->luminanceSource = periph;
537 break;
538 default:
539 return;
540 }
541}
542
543static uint32_t _GBACoreBusRead8(struct mCore* core, uint32_t address) {
544 struct ARMCore* cpu = core->cpu;
545 return cpu->memory.load8(cpu, address, 0);
546}
547
548static uint32_t _GBACoreBusRead16(struct mCore* core, uint32_t address) {
549 struct ARMCore* cpu = core->cpu;
550 return cpu->memory.load16(cpu, address, 0);
551
552}
553
554static uint32_t _GBACoreBusRead32(struct mCore* core, uint32_t address) {
555 struct ARMCore* cpu = core->cpu;
556 return cpu->memory.load32(cpu, address, 0);
557}
558
559static void _GBACoreBusWrite8(struct mCore* core, uint32_t address, uint8_t value) {
560 struct ARMCore* cpu = core->cpu;
561 cpu->memory.store8(cpu, address, value, 0);
562}
563
564static void _GBACoreBusWrite16(struct mCore* core, uint32_t address, uint16_t value) {
565 struct ARMCore* cpu = core->cpu;
566 cpu->memory.store16(cpu, address, value, 0);
567}
568
569static void _GBACoreBusWrite32(struct mCore* core, uint32_t address, uint32_t value) {
570 struct ARMCore* cpu = core->cpu;
571 cpu->memory.store32(cpu, address, value, 0);
572}
573
574static uint32_t _GBACoreRawRead8(struct mCore* core, uint32_t address, int segment) {
575 UNUSED(segment);
576 struct ARMCore* cpu = core->cpu;
577 return GBAView8(cpu, address);
578}
579
580static uint32_t _GBACoreRawRead16(struct mCore* core, uint32_t address, int segment) {
581 UNUSED(segment);
582 struct ARMCore* cpu = core->cpu;
583 return GBAView16(cpu, address);
584}
585
586static uint32_t _GBACoreRawRead32(struct mCore* core, uint32_t address, int segment) {
587 UNUSED(segment);
588 struct ARMCore* cpu = core->cpu;
589 return GBAView32(cpu, address);
590}
591
592static void _GBACoreRawWrite8(struct mCore* core, uint32_t address, int segment, uint8_t value) {
593 UNUSED(segment);
594 struct ARMCore* cpu = core->cpu;
595 GBAPatch8(cpu, address, value, NULL);
596}
597
598static void _GBACoreRawWrite16(struct mCore* core, uint32_t address, int segment, uint16_t value) {
599 UNUSED(segment);
600 struct ARMCore* cpu = core->cpu;
601 GBAPatch16(cpu, address, value, NULL);
602}
603
604static void _GBACoreRawWrite32(struct mCore* core, uint32_t address, int segment, uint32_t value) {
605 UNUSED(segment);
606 struct ARMCore* cpu = core->cpu;
607 GBAPatch32(cpu, address, value, NULL);
608}
609
610size_t _GBAListMemoryBlocks(const struct mCore* core, const struct mCoreMemoryBlock** blocks) {
611 const struct GBA* gba = core->board;
612 switch (gba->memory.savedata.type) {
613 case SAVEDATA_SRAM:
614 *blocks = _GBAMemoryBlocksSRAM;
615 return sizeof(_GBAMemoryBlocksSRAM) / sizeof(*_GBAMemoryBlocksSRAM);
616 case SAVEDATA_FLASH512:
617 *blocks = _GBAMemoryBlocksFlash512;
618 return sizeof(_GBAMemoryBlocksFlash512) / sizeof(*_GBAMemoryBlocksFlash512);
619 case SAVEDATA_FLASH1M:
620 *blocks = _GBAMemoryBlocksFlash1M;
621 return sizeof(_GBAMemoryBlocksFlash1M) / sizeof(*_GBAMemoryBlocksFlash1M);
622 case SAVEDATA_EEPROM:
623 *blocks = _GBAMemoryBlocksEEPROM;
624 return sizeof(_GBAMemoryBlocksEEPROM) / sizeof(*_GBAMemoryBlocksEEPROM);
625 default:
626 *blocks = _GBAMemoryBlocks;
627 return sizeof(_GBAMemoryBlocks) / sizeof(*_GBAMemoryBlocks);
628 }
629}
630
631void* _GBAGetMemoryBlock(struct mCore* core, size_t id, size_t* sizeOut) {
632 struct GBA* gba = core->board;
633 switch (id) {
634 default:
635 return NULL;
636 case REGION_BIOS:
637 *sizeOut = SIZE_BIOS;
638 return gba->memory.bios;
639 case REGION_WORKING_RAM:
640 *sizeOut = SIZE_WORKING_RAM;
641 return gba->memory.wram;
642 case REGION_WORKING_IRAM:
643 *sizeOut = SIZE_WORKING_IRAM;
644 return gba->memory.iwram;
645 case REGION_PALETTE_RAM:
646 *sizeOut = SIZE_PALETTE_RAM;
647 return gba->video.palette;
648 case REGION_VRAM:
649 *sizeOut = SIZE_VRAM;
650 return gba->video.vram;
651 case REGION_OAM:
652 *sizeOut = SIZE_OAM;
653 return gba->video.oam.raw;
654 case REGION_CART0:
655 case REGION_CART1:
656 case REGION_CART2:
657 *sizeOut = gba->memory.romSize;
658 return gba->memory.rom;
659 case REGION_CART_SRAM:
660 if (gba->memory.savedata.type == SAVEDATA_FLASH1M) {
661 *sizeOut = SIZE_CART_FLASH1M;
662 return gba->memory.savedata.currentBank;
663 }
664 // Fall through
665 case REGION_CART_SRAM_MIRROR:
666 *sizeOut = GBASavedataSize(&gba->memory.savedata);
667 return gba->memory.savedata.data;
668 }
669}
670
671#ifdef USE_DEBUGGERS
672static bool _GBACoreSupportsDebuggerType(struct mCore* core, enum mDebuggerType type) {
673 UNUSED(core);
674 switch (type) {
675 case DEBUGGER_CLI:
676 return true;
677#ifdef USE_GDB_STUB
678 case DEBUGGER_GDB:
679 return true;
680#endif
681 default:
682 return false;
683 }
684}
685
686static struct mDebuggerPlatform* _GBACoreDebuggerPlatform(struct mCore* core) {
687 struct GBACore* gbacore = (struct GBACore*) core;
688 if (!gbacore->debuggerPlatform) {
689 gbacore->debuggerPlatform = ARMDebuggerPlatformCreate();
690 }
691 return gbacore->debuggerPlatform;
692}
693
694static struct CLIDebuggerSystem* _GBACoreCliDebuggerSystem(struct mCore* core) {
695 return &GBACLIDebuggerCreate(core)->d;
696}
697
698static void _GBACoreAttachDebugger(struct mCore* core, struct mDebugger* debugger) {
699 if (core->debugger) {
700 GBADetachDebugger(core->board);
701 }
702 GBAAttachDebugger(core->board, debugger);
703 core->debugger = debugger;
704}
705
706static void _GBACoreDetachDebugger(struct mCore* core) {
707 GBADetachDebugger(core->board);
708 core->debugger = NULL;
709}
710
711static void _GBACoreLoadSymbols(struct mCore* core, struct VFile* vf) {
712#ifdef USE_ELF
713 bool closeAfter = false;
714 core->symbolTable = mDebuggerSymbolTableCreate();
715#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
716 if (!vf) {
717 closeAfter = true;
718 vf = mDirectorySetOpenSuffix(&core->dirs, core->dirs.base, ".elf", O_RDONLY);
719 }
720#endif
721 if (!vf) {
722 return;
723 }
724 struct ELF* elf = ELFOpen(vf);
725 if (elf) {
726 mCoreLoadELFSymbols(core->symbolTable, elf);
727 ELFClose(elf);
728 }
729 if (closeAfter) {
730 vf->close(vf);
731 }
732#endif
733}
734#endif
735
736static struct mCheatDevice* _GBACoreCheatDevice(struct mCore* core) {
737 struct GBACore* gbacore = (struct GBACore*) core;
738 if (!gbacore->cheatDevice) {
739 gbacore->cheatDevice = GBACheatDeviceCreate();
740 ((struct ARMCore*) core->cpu)->components[CPU_COMPONENT_CHEAT_DEVICE] = &gbacore->cheatDevice->d;
741 ARMHotplugAttach(core->cpu, CPU_COMPONENT_CHEAT_DEVICE);
742 gbacore->cheatDevice->p = core;
743 }
744 return gbacore->cheatDevice;
745}
746
747static size_t _GBACoreSavedataClone(struct mCore* core, void** sram) {
748 struct GBA* gba = core->board;
749 size_t size = GBASavedataSize(&gba->memory.savedata);
750 if (!size) {
751 *sram = NULL;
752 return 0;
753 }
754 *sram = malloc(size);
755 struct VFile* vf = VFileFromMemory(*sram, size);
756 if (!vf) {
757 free(*sram);
758 *sram = NULL;
759 return 0;
760 }
761 bool success = GBASavedataClone(&gba->memory.savedata, vf);
762 vf->close(vf);
763 if (!success) {
764 free(*sram);
765 *sram = NULL;
766 return 0;
767 }
768 return size;
769}
770
771static bool _GBACoreSavedataRestore(struct mCore* core, const void* sram, size_t size, bool writeback) {
772 struct VFile* vf = VFileMemChunk(sram, size);
773 if (!vf) {
774 return false;
775 }
776 struct GBA* gba = core->board;
777 bool success = true;
778 if (writeback) {
779 success = GBASavedataLoad(&gba->memory.savedata, vf);
780 vf->close(vf);
781 } else {
782 GBASavedataMask(&gba->memory.savedata, vf, true);
783 }
784 return success;
785}
786
787static size_t _GBACoreListVideoLayers(const struct mCore* core, const struct mCoreChannelInfo** info) {
788 UNUSED(core);
789 *info = _GBAVideoLayers;
790 return sizeof(_GBAVideoLayers) / sizeof(*_GBAVideoLayers);
791}
792
793static size_t _GBACoreListAudioChannels(const struct mCore* core, const struct mCoreChannelInfo** info) {
794 UNUSED(core);
795 *info = _GBAAudioChannels;
796 return sizeof(_GBAAudioChannels) / sizeof(*_GBAAudioChannels);
797}
798
799static void _GBACoreEnableVideoLayer(struct mCore* core, size_t id, bool enable) {
800 struct GBA* gba = core->board;
801 switch (id) {
802 case 0:
803 case 1:
804 case 2:
805 case 3:
806 gba->video.renderer->disableBG[id] = !enable;
807 break;
808 case 4:
809 gba->video.renderer->disableOBJ = !enable;
810 break;
811 default:
812 break;
813 }
814}
815
816static void _GBACoreEnableAudioChannel(struct mCore* core, size_t id, bool enable) {
817 struct GBA* gba = core->board;
818 switch (id) {
819 case 0:
820 case 1:
821 case 2:
822 case 3:
823 gba->audio.psg.forceDisableCh[id] = !enable;
824 break;
825 case 4:
826 gba->audio.forceDisableChA = !enable;
827 case 5:
828 gba->audio.forceDisableChB = !enable;
829 break;
830 default:
831 break;
832 }
833}
834
835static void _GBACoreStartVideoLog(struct mCore* core, struct mVideoLogContext* context) {
836 struct GBACore* gbacore = (struct GBACore*) core;
837 struct GBA* gba = core->board;
838 gbacore->logContext = context;
839
840 struct GBASerializedState* state = mVideoLogContextInitialState(context, NULL);
841 state->id = 0;
842 state->cpu.gprs[ARM_PC] = BASE_WORKING_RAM;
843
844 int channelId = mVideoLoggerAddChannel(context);
845 gbacore->proxyRenderer.logger = malloc(sizeof(struct mVideoLogger));
846 mVideoLoggerRendererCreate(gbacore->proxyRenderer.logger, false);
847 mVideoLoggerAttachChannel(gbacore->proxyRenderer.logger, context, channelId);
848 gbacore->proxyRenderer.logger->block = false;
849
850 GBAVideoProxyRendererCreate(&gbacore->proxyRenderer, &gbacore->renderer.d);
851 GBAVideoProxyRendererShim(&gba->video, &gbacore->proxyRenderer);
852}
853
854static void _GBACoreEndVideoLog(struct mCore* core) {
855 struct GBACore* gbacore = (struct GBACore*) core;
856 struct GBA* gba = core->board;
857 GBAVideoProxyRendererUnshim(&gba->video, &gbacore->proxyRenderer);
858 free(gbacore->proxyRenderer.logger);
859 gbacore->proxyRenderer.logger = NULL;
860}
861
862struct mCore* GBACoreCreate(void) {
863 struct GBACore* gbacore = malloc(sizeof(*gbacore));
864 struct mCore* core = &gbacore->d;
865 memset(&core->opts, 0, sizeof(core->opts));
866 core->cpu = NULL;
867 core->board = NULL;
868 core->debugger = NULL;
869 core->init = _GBACoreInit;
870 core->deinit = _GBACoreDeinit;
871 core->platform = _GBACorePlatform;
872 core->setSync = _GBACoreSetSync;
873 core->loadConfig = _GBACoreLoadConfig;
874 core->desiredVideoDimensions = _GBACoreDesiredVideoDimensions;
875 core->setVideoBuffer = _GBACoreSetVideoBuffer;
876 core->getPixels = _GBACoreGetPixels;
877 core->putPixels = _GBACorePutPixels;
878 core->getAudioChannel = _GBACoreGetAudioChannel;
879 core->setAudioBufferSize = _GBACoreSetAudioBufferSize;
880 core->getAudioBufferSize = _GBACoreGetAudioBufferSize;
881 core->addCoreCallbacks = _GBACoreAddCoreCallbacks;
882 core->clearCoreCallbacks = _GBACoreClearCoreCallbacks;
883 core->setAVStream = _GBACoreSetAVStream;
884 core->isROM = GBAIsROM;
885 core->loadROM = _GBACoreLoadROM;
886 core->loadBIOS = _GBACoreLoadBIOS;
887 core->loadSave = _GBACoreLoadSave;
888 core->loadTemporarySave = _GBACoreLoadTemporarySave;
889 core->loadPatch = _GBACoreLoadPatch;
890 core->unloadROM = _GBACoreUnloadROM;
891 core->checksum = _GBACoreChecksum;
892 core->reset = _GBACoreReset;
893 core->runFrame = _GBACoreRunFrame;
894 core->runLoop = _GBACoreRunLoop;
895 core->step = _GBACoreStep;
896 core->stateSize = _GBACoreStateSize;
897 core->loadState = _GBACoreLoadState;
898 core->saveState = _GBACoreSaveState;
899 core->setKeys = _GBACoreSetKeys;
900 core->addKeys = _GBACoreAddKeys;
901 core->clearKeys = _GBACoreClearKeys;
902 core->frameCounter = _GBACoreFrameCounter;
903 core->frameCycles = _GBACoreFrameCycles;
904 core->frequency = _GBACoreFrequency;
905 core->getGameTitle = _GBACoreGetGameTitle;
906 core->getGameCode = _GBACoreGetGameCode;
907 core->setPeripheral = _GBACoreSetPeripheral;
908 core->busRead8 = _GBACoreBusRead8;
909 core->busRead16 = _GBACoreBusRead16;
910 core->busRead32 = _GBACoreBusRead32;
911 core->busWrite8 = _GBACoreBusWrite8;
912 core->busWrite16 = _GBACoreBusWrite16;
913 core->busWrite32 = _GBACoreBusWrite32;
914 core->rawRead8 = _GBACoreRawRead8;
915 core->rawRead16 = _GBACoreRawRead16;
916 core->rawRead32 = _GBACoreRawRead32;
917 core->rawWrite8 = _GBACoreRawWrite8;
918 core->rawWrite16 = _GBACoreRawWrite16;
919 core->rawWrite32 = _GBACoreRawWrite32;
920 core->listMemoryBlocks = _GBAListMemoryBlocks;
921 core->getMemoryBlock = _GBAGetMemoryBlock;
922#ifdef USE_DEBUGGERS
923 core->supportsDebuggerType = _GBACoreSupportsDebuggerType;
924 core->debuggerPlatform = _GBACoreDebuggerPlatform;
925 core->cliDebuggerSystem = _GBACoreCliDebuggerSystem;
926 core->attachDebugger = _GBACoreAttachDebugger;
927 core->detachDebugger = _GBACoreDetachDebugger;
928 core->loadSymbols = _GBACoreLoadSymbols;
929#endif
930 core->cheatDevice = _GBACoreCheatDevice;
931 core->savedataClone = _GBACoreSavedataClone;
932 core->savedataRestore = _GBACoreSavedataRestore;
933 core->listVideoLayers = _GBACoreListVideoLayers;
934 core->listAudioChannels = _GBACoreListAudioChannels;
935 core->enableVideoLayer = _GBACoreEnableVideoLayer;
936 core->enableAudioChannel = _GBACoreEnableAudioChannel;
937#ifndef MINIMAL_CORE
938 core->startVideoLog = _GBACoreStartVideoLog;
939 core->endVideoLog = _GBACoreEndVideoLog;
940#endif
941 return core;
942}
943
944#ifndef MINIMAL_CORE
945static void _GBAVLPStartFrameCallback(void *context) {
946 struct mCore* core = context;
947 struct GBACore* gbacore = (struct GBACore*) core;
948 struct GBA* gba = core->board;
949
950 if (!mVideoLoggerRendererRun(gbacore->proxyRenderer.logger, true)) {
951 GBAVideoProxyRendererUnshim(&gba->video, &gbacore->proxyRenderer);
952 mVideoLogContextRewind(gbacore->logContext, core);
953 GBAVideoProxyRendererShim(&gba->video, &gbacore->proxyRenderer);
954 }
955}
956
957static bool _GBAVLPInit(struct mCore* core) {
958 struct GBACore* gbacore = (struct GBACore*) core;
959 if (!_GBACoreInit(core)) {
960 return false;
961 }
962 gbacore->proxyRenderer.logger = malloc(sizeof(struct mVideoLogger));
963 mVideoLoggerRendererCreate(gbacore->proxyRenderer.logger, true);
964 GBAVideoProxyRendererCreate(&gbacore->proxyRenderer, NULL);
965 memset(&gbacore->logCallbacks, 0, sizeof(gbacore->logCallbacks));
966 gbacore->logCallbacks.videoFrameStarted = _GBAVLPStartFrameCallback;
967 gbacore->logCallbacks.context = core;
968 core->addCoreCallbacks(core, &gbacore->logCallbacks);
969 return true;
970}
971
972static void _GBAVLPDeinit(struct mCore* core) {
973 struct GBACore* gbacore = (struct GBACore*) core;
974 if (gbacore->logContext) {
975 mVideoLogContextDestroy(core, gbacore->logContext);
976 }
977 _GBACoreDeinit(core);
978}
979
980static void _GBAVLPReset(struct mCore* core) {
981 struct GBACore* gbacore = (struct GBACore*) core;
982 struct GBA* gba = (struct GBA*) core->board;
983 if (gba->video.renderer == &gbacore->proxyRenderer.d) {
984 GBAVideoProxyRendererUnshim(&gba->video, &gbacore->proxyRenderer);
985 } else if (gbacore->renderer.outputBuffer) {
986 struct GBAVideoRenderer* renderer = &gbacore->renderer.d;
987 GBAVideoAssociateRenderer(&gba->video, renderer);
988 }
989
990 ARMReset(core->cpu);
991 mVideoLogContextRewind(gbacore->logContext, core);
992 GBAVideoProxyRendererShim(&gba->video, &gbacore->proxyRenderer);
993
994 // Make sure CPU loop never spins
995 GBAHalt(gba);
996 gba->cpu->memory.store16(gba->cpu, BASE_IO | REG_IME, 0, NULL);
997 gba->cpu->memory.store16(gba->cpu, BASE_IO | REG_IE, 0, NULL);
998}
999
1000static bool _GBAVLPLoadROM(struct mCore* core, struct VFile* vf) {
1001 struct GBACore* gbacore = (struct GBACore*) core;
1002 gbacore->logContext = mVideoLogContextCreate(NULL);
1003 if (!mVideoLogContextLoad(gbacore->logContext, vf)) {
1004 mVideoLogContextDestroy(core, gbacore->logContext);
1005 gbacore->logContext = NULL;
1006 return false;
1007 }
1008 mVideoLoggerAttachChannel(gbacore->proxyRenderer.logger, gbacore->logContext, 0);
1009 return true;
1010}
1011
1012static bool _GBAVLPLoadState(struct mCore* core, const void* state) {
1013 struct GBA* gba = (struct GBA*) core->board;
1014
1015 gba->timing.root = NULL;
1016 gba->cpu->gprs[ARM_PC] = BASE_WORKING_RAM;
1017 gba->cpu->memory.setActiveRegion(gba->cpu, gba->cpu->gprs[ARM_PC]);
1018
1019 // Make sure CPU loop never spins
1020 GBAHalt(gba);
1021 gba->cpu->memory.store16(gba->cpu, BASE_IO | REG_IME, 0, NULL);
1022 gba->cpu->memory.store16(gba->cpu, BASE_IO | REG_IE, 0, NULL);
1023 GBAVideoDeserialize(&gba->video, state);
1024 GBAIODeserialize(gba, state);
1025 GBAAudioReset(&gba->audio);
1026
1027 return true;
1028}
1029
1030static bool _returnTrue(struct VFile* vf) {
1031 UNUSED(vf);
1032 return true;
1033}
1034
1035struct mCore* GBAVideoLogPlayerCreate(void) {
1036 struct mCore* core = GBACoreCreate();
1037 core->init = _GBAVLPInit;
1038 core->deinit = _GBAVLPDeinit;
1039 core->reset = _GBAVLPReset;
1040 core->loadROM = _GBAVLPLoadROM;
1041 core->loadState = _GBAVLPLoadState;
1042 core->isROM = _returnTrue;
1043 return core;
1044}
1045#else
1046struct mCore* GBAVideoLogPlayerCreate(void) {
1047 return false;
1048}
1049#endif