src/gb/video.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 "video.h"
7
8#include "core/sync.h"
9#include "core/thread.h"
10#include "gb/gb.h"
11#include "gb/io.h"
12#include "gb/serialize.h"
13
14#include "util/memory.h"
15
16static void GBVideoDummyRendererInit(struct GBVideoRenderer* renderer, enum GBModel model);
17static void GBVideoDummyRendererDeinit(struct GBVideoRenderer* renderer);
18static uint8_t GBVideoDummyRendererWriteVideoRegister(struct GBVideoRenderer* renderer, uint16_t address, uint8_t value);
19static void GBVideoDummyRendererWritePalette(struct GBVideoRenderer* renderer, int index, uint16_t value);
20static void GBVideoDummyRendererDrawRange(struct GBVideoRenderer* renderer, int startX, int endX, int y, struct GBObj* obj, size_t oamMax);
21static void GBVideoDummyRendererFinishScanline(struct GBVideoRenderer* renderer, int y);
22static void GBVideoDummyRendererFinishFrame(struct GBVideoRenderer* renderer);
23static void GBVideoDummyRendererGetPixels(struct GBVideoRenderer* renderer, size_t* stride, const void** pixels);
24static void GBVideoDummyRendererPutPixels(struct GBVideoRenderer* renderer, size_t stride, const void* pixels);
25
26static void _cleanOAM(struct GBVideo* video, int y);
27
28static struct GBVideoRenderer dummyRenderer = {
29 .init = GBVideoDummyRendererInit,
30 .deinit = GBVideoDummyRendererDeinit,
31 .writeVideoRegister = GBVideoDummyRendererWriteVideoRegister,
32 .writePalette = GBVideoDummyRendererWritePalette,
33 .drawRange = GBVideoDummyRendererDrawRange,
34 .finishScanline = GBVideoDummyRendererFinishScanline,
35 .finishFrame = GBVideoDummyRendererFinishFrame,
36 .getPixels = GBVideoDummyRendererGetPixels,
37 .putPixels = GBVideoDummyRendererPutPixels,
38};
39
40void GBVideoInit(struct GBVideo* video) {
41 video->renderer = &dummyRenderer;
42 video->vram = 0;
43 video->frameskip = 0;
44}
45
46void GBVideoReset(struct GBVideo* video) {
47 video->ly = 0;
48 video->x = 0;
49 video->mode = 1;
50 video->stat = 1;
51
52 video->nextEvent = INT_MAX;
53 video->eventDiff = 0;
54
55 video->nextMode = INT_MAX;
56 video->dotCounter = INT_MIN;
57 video->nextFrame = INT_MAX;
58
59 video->frameCounter = 0;
60 video->frameskipCounter = 0;
61
62 if (video->vram) {
63 mappedMemoryFree(video->vram, GB_SIZE_VRAM);
64 }
65 video->vram = anonymousMemoryMap(GB_SIZE_VRAM);
66 GBVideoSwitchBank(video, 0);
67 video->renderer->vram = video->vram;
68 memset(&video->oam, 0, sizeof(video->oam));
69 video->renderer->oam = &video->oam;
70 memset(&video->palette, 0, sizeof(video->palette));
71
72 video->renderer->deinit(video->renderer);
73 video->renderer->init(video->renderer, video->p->model);
74}
75
76void GBVideoDeinit(struct GBVideo* video) {
77 GBVideoAssociateRenderer(video, &dummyRenderer);
78 mappedMemoryFree(video->vram, GB_SIZE_VRAM);
79}
80
81void GBVideoAssociateRenderer(struct GBVideo* video, struct GBVideoRenderer* renderer) {
82 video->renderer->deinit(video->renderer);
83 video->renderer = renderer;
84 renderer->vram = video->vram;
85 video->renderer->init(video->renderer, video->p->model);
86}
87
88int32_t GBVideoProcessEvents(struct GBVideo* video, int32_t cycles) {
89 video->eventDiff += cycles;
90 if (video->nextEvent != INT_MAX) {
91 video->nextEvent -= cycles;
92 }
93 if (video->nextEvent <= 0) {
94 if (video->nextMode != INT_MAX) {
95 video->nextMode -= video->eventDiff;
96 }
97 if (video->nextFrame != INT_MAX) {
98 video->nextFrame -= video->eventDiff;
99 }
100 video->nextEvent = INT_MAX;
101 GBVideoProcessDots(video);
102 if (video->nextMode <= 0) {
103 int lyc = video->p->memory.io[REG_LYC];
104 switch (video->mode) {
105 case 0:
106 if (video->frameskipCounter <= 0) {
107 video->renderer->finishScanline(video->renderer, video->ly);
108 }
109 ++video->ly;
110 video->p->memory.io[REG_LY] = video->ly;
111 video->stat = GBRegisterSTATSetLYC(video->stat, lyc == video->ly);
112 if (video->ly < GB_VIDEO_VERTICAL_PIXELS) {
113 video->nextMode = GB_VIDEO_MODE_2_LENGTH;
114 video->mode = 2;
115 if (!GBRegisterSTATIsHblankIRQ(video->stat) && GBRegisterSTATIsOAMIRQ(video->stat)) {
116 video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
117 }
118 } else {
119 video->nextMode = GB_VIDEO_HORIZONTAL_LENGTH;
120 video->mode = 1;
121
122 if (video->nextFrame != 0) {
123 video->nextFrame = 0;
124 }
125
126 if (GBRegisterSTATIsVblankIRQ(video->stat) || GBRegisterSTATIsOAMIRQ(video->stat)) {
127 video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
128 }
129 video->p->memory.io[REG_IF] |= (1 << GB_IRQ_VBLANK);
130
131 struct mCoreThread* thread = mCoreThreadGet();
132 mCoreThreadFrameEnded(thread);
133 }
134 if (GBRegisterSTATIsLYCIRQ(video->stat) && lyc == video->ly) {
135 video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
136 }
137 GBUpdateIRQs(video->p);
138 break;
139 case 1:
140 // TODO: One M-cycle delay
141 ++video->ly;
142 if (video->ly == GB_VIDEO_VERTICAL_TOTAL_PIXELS + 1) {
143 video->ly = 0;
144 video->p->memory.io[REG_LY] = video->ly;
145 video->nextMode = GB_VIDEO_MODE_2_LENGTH;
146 video->mode = 2;
147 if (GBRegisterSTATIsOAMIRQ(video->stat)) {
148 video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
149 GBUpdateIRQs(video->p);
150 }
151 video->renderer->finishFrame(video->renderer);
152 if (video->p->memory.mbcType == GB_MBC7 && video->p->memory.rotation && video->p->memory.rotation->sample) {
153 video->p->memory.rotation->sample(video->p->memory.rotation);
154 }
155 break;
156 } else if (video->ly == GB_VIDEO_VERTICAL_TOTAL_PIXELS) {
157 video->p->memory.io[REG_LY] = 0;
158 video->nextMode = GB_VIDEO_HORIZONTAL_LENGTH - 8;
159 } else if (video->ly == GB_VIDEO_VERTICAL_TOTAL_PIXELS - 1) {
160 video->p->memory.io[REG_LY] = video->ly;
161 video->nextMode = 8;
162 } else {
163 video->p->memory.io[REG_LY] = video->ly;
164 video->nextMode = GB_VIDEO_HORIZONTAL_LENGTH;
165 }
166
167 video->stat = GBRegisterSTATSetLYC(video->stat, lyc == video->p->memory.io[REG_LY]);
168 if (GBRegisterSTATIsLYCIRQ(video->stat) && lyc == video->p->memory.io[REG_LY]) {
169 video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
170 GBUpdateIRQs(video->p);
171 }
172 break;
173 case 2:
174 _cleanOAM(video, video->ly);
175 video->dotCounter = 0;
176 video->nextEvent = GB_VIDEO_HORIZONTAL_LENGTH;
177 video->x = 0;
178 video->nextMode = GB_VIDEO_MODE_3_LENGTH_BASE + video->objMax * 12;
179 video->mode = 3;
180 break;
181 case 3:
182 video->nextMode = GB_VIDEO_MODE_0_LENGTH_BASE - video->objMax * 12;
183 video->mode = 0;
184 if (GBRegisterSTATIsHblankIRQ(video->stat)) {
185 video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
186 GBUpdateIRQs(video->p);
187 }
188 if (video->ly < GB_VIDEO_VERTICAL_PIXELS && video->p->memory.isHdma && video->p->memory.io[REG_HDMA5] != 0xFF) {
189 video->p->memory.hdmaRemaining = 0x10;
190 video->p->memory.hdmaNext = video->p->cpu->cycles;
191 }
192 break;
193 }
194 video->stat = GBRegisterSTATSetMode(video->stat, video->mode);
195 video->p->memory.io[REG_STAT] = video->stat;
196 }
197 if (video->nextFrame <= 0) {
198 if (video->p->cpu->executionState == LR35902_CORE_FETCH) {
199 GBFrameEnded(video->p);
200 video->nextFrame = GB_VIDEO_TOTAL_LENGTH;
201 video->nextEvent = GB_VIDEO_TOTAL_LENGTH;
202
203 --video->frameskipCounter;
204 if (video->frameskipCounter < 0) {
205 mCoreSyncPostFrame(video->p->sync);
206 video->frameskipCounter = video->frameskip;
207 }
208 ++video->frameCounter;
209
210 if (video->p->stream && video->p->stream->postVideoFrame) {
211 const color_t* pixels;
212 size_t stride;
213 video->renderer->getPixels(video->renderer, &stride, (const void**) &pixels);
214 video->p->stream->postVideoFrame(video->p->stream, pixels, stride);
215 }
216 struct mCoreThread* thread = mCoreThreadGet();
217 mCoreThreadFrameStarted(thread);
218 } else {
219 video->nextFrame = 4 - ((video->p->cpu->executionState + 1) & 3);
220 if (video->nextFrame < video->nextEvent) {
221 video->nextEvent = video->nextFrame;
222 }
223 }
224 }
225 if (video->nextMode < video->nextEvent) {
226 video->nextEvent = video->nextMode;
227 }
228 video->eventDiff = 0;
229 }
230 return video->nextEvent;
231}
232
233static void _cleanOAM(struct GBVideo* video, int y) {
234 // TODO: GBC differences
235 // TODO: Optimize
236 video->objMax = 0;
237 int spriteHeight = 8;
238 if (GBRegisterLCDCIsObjSize(video->p->memory.io[REG_LCDC])) {
239 spriteHeight = 16;
240 }
241 int o = 0;
242 int i;
243 for (i = 0; i < 40; ++i) {
244 uint8_t oy = video->oam.obj[i].y;
245 if (y < oy - 16 || y >= oy - 16 + spriteHeight) {
246 continue;
247 }
248 // TODO: Sort
249 video->objThisLine[o] = video->oam.obj[i];
250 ++o;
251 if (o == 10) {
252 break;
253 }
254 }
255 video->objMax = o;
256}
257
258void GBVideoProcessDots(struct GBVideo* video) {
259 if (video->mode != 3 || video->dotCounter < 0) {
260 return;
261 }
262 int oldX = video->x;
263 video->x = video->dotCounter + video->eventDiff + (video->p->cpu->cycles >> video->p->doubleSpeed);
264 if (video->x > GB_VIDEO_HORIZONTAL_PIXELS) {
265 video->x = GB_VIDEO_HORIZONTAL_PIXELS;
266 } else if (video->x < 0) {
267 mLOG(GB, FATAL, "Video dot clock went negative!");
268 video->x = oldX;
269 }
270 if (video->x == GB_VIDEO_HORIZONTAL_PIXELS) {
271 video->dotCounter = INT_MIN;
272 }
273 if (video->frameskipCounter <= 0) {
274 video->renderer->drawRange(video->renderer, oldX, video->x, video->ly, video->objThisLine, video->objMax);
275 }
276}
277
278void GBVideoWriteLCDC(struct GBVideo* video, GBRegisterLCDC value) {
279 if (!GBRegisterLCDCIsEnable(video->p->memory.io[REG_LCDC]) && GBRegisterLCDCIsEnable(value)) {
280 video->mode = 2;
281 video->nextMode = GB_VIDEO_MODE_2_LENGTH - 5; // TODO: Why is this fudge factor needed? Might be related to T-cycles for load/store differing
282 video->nextEvent = video->nextMode;
283 video->eventDiff = -video->p->cpu->cycles >> video->p->doubleSpeed;
284 video->ly = 0;
285 video->p->memory.io[REG_LY] = 0;
286 // TODO: Does this read as 0 for 4 T-cycles?
287 video->stat = GBRegisterSTATSetMode(video->stat, 2);
288 video->stat = GBRegisterSTATSetLYC(video->stat, video->ly == video->p->memory.io[REG_LYC]);
289 if (GBRegisterSTATIsLYCIRQ(video->stat) && video->ly == video->p->memory.io[REG_LYC]) {
290 video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
291 GBUpdateIRQs(video->p);
292 }
293 video->p->memory.io[REG_STAT] = video->stat;
294
295 if (video->p->cpu->cycles + (video->nextEvent << video->p->doubleSpeed) < video->p->cpu->nextEvent) {
296 video->p->cpu->nextEvent = video->p->cpu->cycles + (video->nextEvent << video->p->doubleSpeed);
297 }
298 return;
299 }
300 if (GBRegisterLCDCIsEnable(video->p->memory.io[REG_LCDC]) && !GBRegisterLCDCIsEnable(value)) {
301 video->mode = 0;
302 video->nextMode = INT_MAX;
303 video->nextEvent = video->nextFrame;
304 video->stat = GBRegisterSTATSetMode(video->stat, video->mode);
305 video->p->memory.io[REG_STAT] = video->stat;
306 video->ly = 0;
307 video->p->memory.io[REG_LY] = 0;
308 }
309}
310
311void GBVideoWriteSTAT(struct GBVideo* video, GBRegisterSTAT value) {
312 video->stat = (video->stat & 0x7) | (value & 0x78);
313 if (video->p->model == GB_MODEL_DMG && video->mode == 1) {
314 video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
315 GBUpdateIRQs(video->p);
316 }
317}
318
319void GBVideoWriteLYC(struct GBVideo* video, uint8_t value) {
320 if (video->mode == 2) {
321 video->stat = GBRegisterSTATSetLYC(video->stat, value == video->ly);
322 if (GBRegisterSTATIsLYCIRQ(video->stat) && value == video->ly) {
323 video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
324 GBUpdateIRQs(video->p);
325 }
326 }
327}
328
329void GBVideoWritePalette(struct GBVideo* video, uint16_t address, uint8_t value) {
330 static const uint16_t dmgPalette[4] = { 0x7FFF, 0x56B5, 0x294A, 0x0000};
331 if (video->p->model < GB_MODEL_CGB) {
332 switch (address) {
333 case REG_BGP:
334 video->palette[0] = dmgPalette[value & 3];
335 video->palette[1] = dmgPalette[(value >> 2) & 3];
336 video->palette[2] = dmgPalette[(value >> 4) & 3];
337 video->palette[3] = dmgPalette[(value >> 6) & 3];
338 video->renderer->writePalette(video->renderer, 0, video->palette[0]);
339 video->renderer->writePalette(video->renderer, 1, video->palette[1]);
340 video->renderer->writePalette(video->renderer, 2, video->palette[2]);
341 video->renderer->writePalette(video->renderer, 3, video->palette[3]);
342 break;
343 case REG_OBP0:
344 video->palette[8 * 4 + 0] = dmgPalette[value & 3];
345 video->palette[8 * 4 + 1] = dmgPalette[(value >> 2) & 3];
346 video->palette[8 * 4 + 2] = dmgPalette[(value >> 4) & 3];
347 video->palette[8 * 4 + 3] = dmgPalette[(value >> 6) & 3];
348 video->renderer->writePalette(video->renderer, 8 * 4 + 0, video->palette[8 * 4 + 0]);
349 video->renderer->writePalette(video->renderer, 8 * 4 + 1, video->palette[8 * 4 + 1]);
350 video->renderer->writePalette(video->renderer, 8 * 4 + 2, video->palette[8 * 4 + 2]);
351 video->renderer->writePalette(video->renderer, 8 * 4 + 3, video->palette[8 * 4 + 3]);
352 break;
353 case REG_OBP1:
354 video->palette[9 * 4 + 0] = dmgPalette[value & 3];
355 video->palette[9 * 4 + 1] = dmgPalette[(value >> 2) & 3];
356 video->palette[9 * 4 + 2] = dmgPalette[(value >> 4) & 3];
357 video->palette[9 * 4 + 3] = dmgPalette[(value >> 6) & 3];
358 video->renderer->writePalette(video->renderer, 9 * 4 + 0, video->palette[9 * 4 + 0]);
359 video->renderer->writePalette(video->renderer, 9 * 4 + 1, video->palette[9 * 4 + 1]);
360 video->renderer->writePalette(video->renderer, 9 * 4 + 2, video->palette[9 * 4 + 2]);
361 video->renderer->writePalette(video->renderer, 9 * 4 + 3, video->palette[9 * 4 + 3]);
362 break;
363 }
364 } else {
365 switch (address) {
366 case REG_BCPD:
367 if (video->bcpIndex & 1) {
368 video->palette[video->bcpIndex >> 1] &= 0x00FF;
369 video->palette[video->bcpIndex >> 1] |= value << 8;
370 } else {
371 video->palette[video->bcpIndex >> 1] &= 0xFF00;
372 video->palette[video->bcpIndex >> 1] |= value;
373 }
374 video->renderer->writePalette(video->renderer, video->bcpIndex >> 1, video->palette[video->bcpIndex >> 1]);
375 if (video->bcpIncrement) {
376 ++video->bcpIndex;
377 video->bcpIndex &= 0x3F;
378 video->p->memory.io[REG_BCPS] &= 0x80;
379 video->p->memory.io[REG_BCPS] |= video->bcpIndex;
380 }
381 video->p->memory.io[REG_BCPD] = video->palette[video->bcpIndex >> 1] >> (8 * (video->bcpIndex & 1));
382 break;
383 case REG_OCPD:
384 if (video->ocpIndex & 1) {
385 video->palette[8 * 4 + (video->ocpIndex >> 1)] &= 0x00FF;
386 video->palette[8 * 4 + (video->ocpIndex >> 1)] |= value << 8;
387 } else {
388 video->palette[8 * 4 + (video->ocpIndex >> 1)] &= 0xFF00;
389 video->palette[8 * 4 + (video->ocpIndex >> 1)] |= value;
390 }
391 video->renderer->writePalette(video->renderer, 8 * 4 + (video->ocpIndex >> 1), video->palette[8 * 4 + (video->ocpIndex >> 1)]);
392 if (video->ocpIncrement) {
393 ++video->ocpIndex;
394 video->ocpIndex &= 0x3F;
395 video->p->memory.io[REG_OCPS] &= 0x80;
396 video->p->memory.io[REG_OCPS] |= video->ocpIndex;
397 }
398 video->p->memory.io[REG_OCPD] = video->palette[8 * 4 + (video->ocpIndex >> 1)] >> (8 * (video->ocpIndex & 1));
399 break;
400 }
401 }
402}
403
404void GBVideoSwitchBank(struct GBVideo* video, uint8_t value) {
405 value &= 1;
406 video->vramBank = &video->vram[value * GB_SIZE_VRAM_BANK0];
407 video->vramCurrentBank = value;
408}
409
410static void GBVideoDummyRendererInit(struct GBVideoRenderer* renderer, enum GBModel model) {
411 UNUSED(renderer);
412 UNUSED(model);
413 // Nothing to do
414}
415
416static void GBVideoDummyRendererDeinit(struct GBVideoRenderer* renderer) {
417 UNUSED(renderer);
418 // Nothing to do
419}
420
421static uint8_t GBVideoDummyRendererWriteVideoRegister(struct GBVideoRenderer* renderer, uint16_t address, uint8_t value) {
422 UNUSED(renderer);
423 UNUSED(address);
424 return value;
425}
426
427static void GBVideoDummyRendererWritePalette(struct GBVideoRenderer* renderer, int index, uint16_t value) {
428 UNUSED(renderer);
429 UNUSED(index);
430 UNUSED(value);
431}
432
433static void GBVideoDummyRendererDrawRange(struct GBVideoRenderer* renderer, int startX, int endX, int y, struct GBObj* obj, size_t oamMax) {
434 UNUSED(renderer);
435 UNUSED(endX);
436 UNUSED(startX);
437 UNUSED(y);
438 UNUSED(obj);
439 UNUSED(oamMax);
440 // Nothing to do
441}
442
443static void GBVideoDummyRendererFinishScanline(struct GBVideoRenderer* renderer, int y) {
444 UNUSED(renderer);
445 UNUSED(y);
446 // Nothing to do
447}
448
449static void GBVideoDummyRendererFinishFrame(struct GBVideoRenderer* renderer) {
450 UNUSED(renderer);
451 // Nothing to do
452}
453
454static void GBVideoDummyRendererGetPixels(struct GBVideoRenderer* renderer, size_t* stride, const void** pixels) {
455 UNUSED(renderer);
456 UNUSED(stride);
457 UNUSED(pixels);
458 // Nothing to do
459}
460
461static void GBVideoDummyRendererPutPixels(struct GBVideoRenderer* renderer, size_t stride, const void* pixels) {
462 UNUSED(renderer);
463 UNUSED(stride);
464 UNUSED(pixels);
465 // Nothing to do
466}
467
468void GBVideoSerialize(const struct GBVideo* video, struct GBSerializedState* state) {
469 STORE_16LE(video->x, 0, &state->video.x);
470 STORE_16LE(video->ly, 0, &state->video.ly);
471 STORE_32LE(video->nextEvent, 0, &state->video.nextEvent);
472 STORE_32LE(video->eventDiff, 0, &state->video.eventDiff);
473 STORE_32LE(video->nextMode, 0, &state->video.nextMode);
474 STORE_32LE(video->dotCounter, 0, &state->video.dotCounter);
475 STORE_32LE(video->frameCounter, 0, &state->video.frameCounter);
476 state->video.vramCurrentBank = video->vramCurrentBank;
477
478 GBSerializedVideoFlags flags = 0;
479 flags = GBSerializedVideoFlagsSetBcpIncrement(flags, video->bcpIncrement);
480 flags = GBSerializedVideoFlagsSetOcpIncrement(flags, video->ocpIncrement);
481 flags = GBSerializedVideoFlagsSetMode(flags, video->mode);
482 state->video.flags = flags;
483 STORE_16LE(video->bcpIndex, 0, &state->video.bcpIndex);
484 STORE_16LE(video->ocpIndex, 0, &state->video.ocpIndex);
485
486 size_t i;
487 for (i = 0; i < 64; ++i) {
488 STORE_16LE(video->palette[i], i * 2, state->video.palette);
489 }
490
491 memcpy(state->vram, video->vram, GB_SIZE_VRAM);
492 memcpy(state->oam, &video->oam.raw, GB_SIZE_OAM);
493}
494
495void GBVideoDeserialize(struct GBVideo* video, const struct GBSerializedState* state) {
496 LOAD_16LE(video->x, 0, &state->video.x);
497 LOAD_16LE(video->ly, 0, &state->video.ly);
498 LOAD_32LE(video->nextEvent, 0, &state->video.nextEvent);
499 LOAD_32LE(video->eventDiff, 0, &state->video.eventDiff);
500 LOAD_32LE(video->nextMode, 0, &state->video.nextMode);
501 LOAD_32LE(video->dotCounter, 0, &state->video.dotCounter);
502 LOAD_32LE(video->frameCounter, 0, &state->video.frameCounter);
503 video->vramCurrentBank = state->video.vramCurrentBank;
504
505 GBSerializedVideoFlags flags = state->video.flags;
506 video->bcpIncrement = GBSerializedVideoFlagsGetBcpIncrement(flags);
507 video->ocpIncrement = GBSerializedVideoFlagsGetOcpIncrement(flags);
508 video->mode = GBSerializedVideoFlagsGetMode(flags);
509 LOAD_16LE(video->bcpIndex, 0, &state->video.bcpIndex);
510 video->bcpIndex &= 0x3F;
511 LOAD_16LE(video->ocpIndex, 0, &state->video.ocpIndex);
512 video->ocpIndex &= 0x3F;
513
514 size_t i;
515 for (i = 0; i < 64; ++i) {
516 LOAD_16LE(video->palette[i], i * 2, state->video.palette);
517 video->renderer->writePalette(video->renderer, i, video->palette[i]);
518 }
519
520 memcpy(video->vram, state->vram, GB_SIZE_VRAM);
521 memcpy(&video->oam.raw, state->oam, GB_SIZE_OAM);
522
523 _cleanOAM(video, video->ly);
524 GBVideoSwitchBank(video, video->vramCurrentBank);
525}