src/gb/renderers/software.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/internal/gb/renderers/software.h>
7
8#include <mgba/core/cache-set.h>
9#include <mgba/internal/gb/io.h>
10#include <mgba/internal/gb/renderers/cache-set.h>
11#include <mgba-util/math.h>
12#include <mgba-util/memory.h>
13
14static void GBVideoSoftwareRendererInit(struct GBVideoRenderer* renderer, enum GBModel model, bool borders);
15static void GBVideoSoftwareRendererDeinit(struct GBVideoRenderer* renderer);
16static uint8_t GBVideoSoftwareRendererWriteVideoRegister(struct GBVideoRenderer* renderer, uint16_t address, uint8_t value);
17static void GBVideoSoftwareRendererWriteSGBPacket(struct GBVideoRenderer* renderer, uint8_t* data);
18static void GBVideoSoftwareRendererWritePalette(struct GBVideoRenderer* renderer, int index, uint16_t value);
19static void GBVideoSoftwareRendererWriteVRAM(struct GBVideoRenderer* renderer, uint16_t address);
20static void GBVideoSoftwareRendererWriteOAM(struct GBVideoRenderer* renderer, uint16_t oam);
21static void GBVideoSoftwareRendererDrawRange(struct GBVideoRenderer* renderer, int startX, int endX, int y, struct GBObj* obj, size_t oamMax);
22static void GBVideoSoftwareRendererFinishScanline(struct GBVideoRenderer* renderer, int y);
23static void GBVideoSoftwareRendererFinishFrame(struct GBVideoRenderer* renderer);
24static void GBVideoSoftwareRendererEnableSGBBorder(struct GBVideoRenderer* renderer, bool enable);
25static void GBVideoSoftwareRendererGetPixels(struct GBVideoRenderer* renderer, size_t* stride, const void** pixels);
26static void GBVideoSoftwareRendererPutPixels(struct GBVideoRenderer* renderer, size_t stride, const void* pixels);
27
28static void GBVideoSoftwareRendererDrawBackground(struct GBVideoSoftwareRenderer* renderer, uint8_t* maps, int startX, int endX, int sx, int sy);
29static void GBVideoSoftwareRendererDrawObj(struct GBVideoSoftwareRenderer* renderer, struct GBObj* obj, int startX, int endX, int y);
30
31static void _clearScreen(struct GBVideoSoftwareRenderer* renderer) {
32 size_t sgbOffset = 0;
33 if (renderer->model & GB_MODEL_SGB) {
34 return;
35 }
36 int y;
37 for (y = 0; y < GB_VIDEO_VERTICAL_PIXELS; ++y) {
38 color_t* row = &renderer->outputBuffer[renderer->outputBufferStride * y + sgbOffset];
39 int x;
40 for (x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS; x += 4) {
41 row[x + 0] = renderer->palette[0];
42 row[x + 1] = renderer->palette[0];
43 row[x + 2] = renderer->palette[0];
44 row[x + 3] = renderer->palette[0];
45 }
46 }
47}
48
49static void _regenerateSGBBorder(struct GBVideoSoftwareRenderer* renderer) {
50 int i;
51 for (i = 0; i < 0x40; ++i) {
52 uint16_t color;
53 LOAD_16LE(color, 0x800 + i * 2, renderer->d.sgbMapRam);
54 renderer->d.writePalette(&renderer->d, i + 0x40, color);
55 }
56 int x, y;
57 for (y = 0; y < 224; ++y) {
58 for (x = 0; x < 256; x += 8) {
59 if (x >= 48 && x < 208 && y >= 40 && y < 184) {
60 continue;
61 }
62 uint16_t mapData;
63 LOAD_16LE(mapData, (x >> 2) + (y & ~7) * 8, renderer->d.sgbMapRam);
64 if (UNLIKELY(SGBBgAttributesGetTile(mapData) >= 0x100)) {
65 continue;
66 }
67
68 int localY = y & 0x7;
69 if (SGBBgAttributesIsYFlip(mapData)) {
70 localY = 7 - localY;
71 }
72 uint8_t tileData[4];
73 tileData[0] = renderer->d.sgbCharRam[(SGBBgAttributesGetTile(mapData) * 16 + localY) * 2 + 0x00];
74 tileData[1] = renderer->d.sgbCharRam[(SGBBgAttributesGetTile(mapData) * 16 + localY) * 2 + 0x01];
75 tileData[2] = renderer->d.sgbCharRam[(SGBBgAttributesGetTile(mapData) * 16 + localY) * 2 + 0x10];
76 tileData[3] = renderer->d.sgbCharRam[(SGBBgAttributesGetTile(mapData) * 16 + localY) * 2 + 0x11];
77
78 size_t base = y * renderer->outputBufferStride + x;
79 int paletteBase = SGBBgAttributesGetPalette(mapData) * 0x10;
80 int colorSelector;
81
82 int flip = 0;
83 if (SGBBgAttributesIsXFlip(mapData)) {
84 flip = 7;
85 }
86 for (i = 7; i >= 0; --i) {
87 colorSelector = (tileData[0] >> i & 0x1) << 0 | (tileData[1] >> i & 0x1) << 1 | (tileData[2] >> i & 0x1) << 2 | (tileData[3] >> i & 0x1) << 3;
88 renderer->outputBuffer[(base + 7 - i) ^ flip] = renderer->palette[paletteBase | colorSelector];
89 }
90 }
91 }
92}
93
94static inline void _setAttribute(uint8_t* sgbAttributes, unsigned x, unsigned y, int palette) {
95 int p = sgbAttributes[(x >> 2) + 5 * y];
96 p &= ~(3 << (2 * (3 - (x & 3))));
97 p |= palette << (2 * (3 - (x & 3)));
98 sgbAttributes[(x >> 2) + 5 * y] = p;
99}
100
101static void _parseAttrBlock(struct GBVideoSoftwareRenderer* renderer, int start) {
102 uint8_t block[6];
103 memcpy(block, &renderer->sgbPacket[start], 6);
104 unsigned x0 = block[2];
105 unsigned x1 = block[4];
106 unsigned y0 = block[3];
107 unsigned y1 = block[5];
108 unsigned x, y;
109 int pIn = block[1] & 3;
110 int pPerim = (block[1] >> 2) & 3;
111 int pOut = (block[1] >> 4) & 3;
112
113 for (y = 0; y < GB_VIDEO_VERTICAL_PIXELS / 8; ++y) {
114 for (x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS / 8; ++x) {
115 if (y > y0 && y < y1 && x > x0 && x < x1) {
116 if (block[0] & 1) {
117 _setAttribute(renderer->d.sgbAttributes, x, y, pIn);
118 }
119 } else if (y < y0 || y > y1 || x < x0 || x > x1) {
120 if (block[0] & 4) {
121 _setAttribute(renderer->d.sgbAttributes, x, y, pOut);
122 }
123 } else {
124 if (block[0] & 2) {
125 _setAttribute(renderer->d.sgbAttributes, x, y, pPerim);
126 } else if (block[0] & 1) {
127 _setAttribute(renderer->d.sgbAttributes, x, y, pIn);
128 } else if (block[0] & 4) {
129 _setAttribute(renderer->d.sgbAttributes, x, y, pOut);
130 }
131 }
132 }
133 }
134}
135
136static void _parseAttrLine(struct GBVideoSoftwareRenderer* renderer, int start) {
137 uint8_t byte = renderer->sgbPacket[start];
138 unsigned line = byte & 0x1F;
139 int pal = (byte >> 5) & 3;
140
141 if (byte & 0x80) {
142 if (line > GB_VIDEO_VERTICAL_PIXELS / 8) {
143 return;
144 }
145 int x;
146 for (x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS / 8; ++x) {
147 _setAttribute(renderer->d.sgbAttributes, x, line, pal);
148 }
149 } else {
150 if (line > GB_VIDEO_HORIZONTAL_PIXELS / 8) {
151 return;
152 }
153 int y;
154 for (y = 0; y < GB_VIDEO_VERTICAL_PIXELS / 8; ++y) {
155 _setAttribute(renderer->d.sgbAttributes, line, y, pal);
156 }
157 }
158}
159
160static bool _inWindow(struct GBVideoSoftwareRenderer* renderer) {
161 return GBRegisterLCDCIsWindow(renderer->lcdc) && GB_VIDEO_HORIZONTAL_PIXELS + 7 > renderer->wx;
162}
163
164void GBVideoSoftwareRendererCreate(struct GBVideoSoftwareRenderer* renderer) {
165 renderer->d.init = GBVideoSoftwareRendererInit;
166 renderer->d.deinit = GBVideoSoftwareRendererDeinit;
167 renderer->d.writeVideoRegister = GBVideoSoftwareRendererWriteVideoRegister;
168 renderer->d.writeSGBPacket = GBVideoSoftwareRendererWriteSGBPacket;
169 renderer->d.writePalette = GBVideoSoftwareRendererWritePalette;
170 renderer->d.writeVRAM = GBVideoSoftwareRendererWriteVRAM;
171 renderer->d.writeOAM = GBVideoSoftwareRendererWriteOAM;
172 renderer->d.drawRange = GBVideoSoftwareRendererDrawRange;
173 renderer->d.finishScanline = GBVideoSoftwareRendererFinishScanline;
174 renderer->d.finishFrame = GBVideoSoftwareRendererFinishFrame;
175 renderer->d.enableSGBBorder = GBVideoSoftwareRendererEnableSGBBorder;
176 renderer->d.getPixels = GBVideoSoftwareRendererGetPixels;
177 renderer->d.putPixels = GBVideoSoftwareRendererPutPixels;
178
179 renderer->d.disableBG = false;
180 renderer->d.disableOBJ = false;
181 renderer->d.disableWIN = false;
182
183 renderer->temporaryBuffer = 0;
184}
185
186static void GBVideoSoftwareRendererInit(struct GBVideoRenderer* renderer, enum GBModel model, bool sgbBorders) {
187 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
188 softwareRenderer->lcdc = 0;
189 softwareRenderer->scy = 0;
190 softwareRenderer->scx = 0;
191 softwareRenderer->wy = 0;
192 softwareRenderer->currentWy = 0;
193 softwareRenderer->lastY = GB_VIDEO_VERTICAL_PIXELS;
194 softwareRenderer->hasWindow = false;
195 softwareRenderer->wx = 0;
196 softwareRenderer->model = model;
197 softwareRenderer->sgbTransfer = 0;
198 softwareRenderer->sgbCommandHeader = 0;
199 softwareRenderer->sgbBorders = sgbBorders;
200 softwareRenderer->objOffsetX = 0;
201 softwareRenderer->objOffsetY = 0;
202 softwareRenderer->offsetScx = 0;
203 softwareRenderer->offsetScy = 0;
204 softwareRenderer->offsetWx = 0;
205 softwareRenderer->offsetWy = 0;
206
207 int i;
208 for (i = 0; i < 64; ++i) {
209 softwareRenderer->lookup[i] = i;
210 softwareRenderer->lookup[i] = i;
211 softwareRenderer->lookup[i] = i;
212 softwareRenderer->lookup[i] = i;
213 }
214}
215
216static void GBVideoSoftwareRendererDeinit(struct GBVideoRenderer* renderer) {
217 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
218 UNUSED(softwareRenderer);
219}
220
221static void GBVideoSoftwareRendererUpdateWindow(struct GBVideoSoftwareRenderer* renderer, bool before, bool after, uint8_t oldWy) {
222 if (renderer->lastY >= GB_VIDEO_VERTICAL_PIXELS || !(after || before)) {
223 return;
224 }
225 if (renderer->lastY >= oldWy) {
226 if (!after) {
227 renderer->currentWy -= renderer->lastY;
228 renderer->hasWindow = true;
229 } else if (!before) {
230 if (!renderer->hasWindow) {
231 renderer->currentWy = renderer->lastY - renderer->wy;
232 } else {
233 renderer->currentWy += renderer->lastY;
234 }
235 } else if (renderer->wy != oldWy) {
236 renderer->currentWy += oldWy - renderer->wy;
237 renderer->hasWindow = true;
238 }
239 }
240}
241
242static uint8_t GBVideoSoftwareRendererWriteVideoRegister(struct GBVideoRenderer* renderer, uint16_t address, uint8_t value) {
243 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
244 if (renderer->cache) {
245 GBVideoCacheWriteVideoRegister(renderer->cache, address, value);
246 }
247 bool wasWindow = _inWindow(softwareRenderer);
248 uint8_t wy = softwareRenderer->wy;
249 switch (address) {
250 case REG_LCDC:
251 softwareRenderer->lcdc = value;
252 GBVideoSoftwareRendererUpdateWindow(softwareRenderer, wasWindow, _inWindow(softwareRenderer), wy);
253 break;
254 case REG_SCY:
255 softwareRenderer->scy = value;
256 break;
257 case REG_SCX:
258 softwareRenderer->scx = value;
259 break;
260 case REG_WY:
261 softwareRenderer->wy = value;
262 GBVideoSoftwareRendererUpdateWindow(softwareRenderer, wasWindow, _inWindow(softwareRenderer), wy);
263 break;
264 case REG_WX:
265 softwareRenderer->wx = value;
266 GBVideoSoftwareRendererUpdateWindow(softwareRenderer, wasWindow, _inWindow(softwareRenderer), wy);
267 break;
268 case REG_BGP:
269 softwareRenderer->lookup[0] = value & 3;
270 softwareRenderer->lookup[1] = (value >> 2) & 3;
271 softwareRenderer->lookup[2] = (value >> 4) & 3;
272 softwareRenderer->lookup[3] = (value >> 6) & 3;
273 break;
274 case REG_OBP0:
275 softwareRenderer->lookup[0x20 + 0] = value & 3;
276 softwareRenderer->lookup[0x20 + 1] = (value >> 2) & 3;
277 softwareRenderer->lookup[0x20 + 2] = (value >> 4) & 3;
278 softwareRenderer->lookup[0x20 + 3] = (value >> 6) & 3;
279 break;
280 case REG_OBP1:
281 softwareRenderer->lookup[0x24 + 0] = value & 3;
282 softwareRenderer->lookup[0x24 + 1] = (value >> 2) & 3;
283 softwareRenderer->lookup[0x24 + 2] = (value >> 4) & 3;
284 softwareRenderer->lookup[0x24 + 3] = (value >> 6) & 3;
285 break;
286 }
287 return value;
288}
289
290static void GBVideoSoftwareRendererWriteSGBPacket(struct GBVideoRenderer* renderer, uint8_t* data) {
291 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
292 memcpy(softwareRenderer->sgbPacket, data, sizeof(softwareRenderer->sgbPacket));
293 int i;
294 softwareRenderer->sgbCommandHeader = data[0];
295 softwareRenderer->sgbTransfer = 0;
296 int set;
297 int sets;
298 int attrX;
299 int attrY;
300 int attrDirection;
301 int pBefore;
302 int pAfter;
303 int pDiv;
304 switch (softwareRenderer->sgbCommandHeader >> 3) {
305 case SGB_PAL_SET:
306 softwareRenderer->sgbPacket[1] = data[9];
307 if (!(data[9] & 0x80)) {
308 break;
309 }
310 // Fall through
311 case SGB_ATTR_SET:
312 set = softwareRenderer->sgbPacket[1] & 0x3F;
313 if (set <= 0x2C) {
314 memcpy(renderer->sgbAttributes, &renderer->sgbAttributeFiles[set * 90], 90);
315 }
316 break;
317 case SGB_ATTR_BLK:
318 sets = softwareRenderer->sgbPacket[1];
319 i = 2;
320 for (; i < (softwareRenderer->sgbCommandHeader & 7) << 4 && sets; i += 6, --sets) {
321 _parseAttrBlock(softwareRenderer, i);
322 }
323 break;
324 case SGB_ATTR_LIN:
325 sets = softwareRenderer->sgbPacket[1];
326 i = 2;
327 for (; i < (softwareRenderer->sgbCommandHeader & 7) << 4 && sets; ++i, --sets) {
328 _parseAttrLine(softwareRenderer, i);
329 }
330 break;
331 case SGB_ATTR_DIV:
332 pAfter = softwareRenderer->sgbPacket[1] & 3;
333 pBefore = (softwareRenderer->sgbPacket[1] >> 2) & 3;
334 pDiv = (softwareRenderer->sgbPacket[1] >> 4) & 3;
335 attrX = softwareRenderer->sgbPacket[2];
336 if (softwareRenderer->sgbPacket[1] & 0x40) {
337 if (attrX > GB_VIDEO_VERTICAL_PIXELS / 8) {
338 attrX = GB_VIDEO_VERTICAL_PIXELS / 8;
339 }
340 int j;
341 for (j = 0; j < attrX; ++j) {
342 for (i = 0; i < GB_VIDEO_HORIZONTAL_PIXELS / 8; ++i) {
343 _setAttribute(renderer->sgbAttributes, i, j, pBefore);
344 }
345 }
346 if (attrX < GB_VIDEO_VERTICAL_PIXELS / 8) {
347 for (i = 0; i < GB_VIDEO_HORIZONTAL_PIXELS / 8; ++i) {
348 _setAttribute(renderer->sgbAttributes, i, attrX, pDiv);
349 }
350
351 }
352 for (; j < GB_VIDEO_VERTICAL_PIXELS / 8; ++j) {
353 for (i = 0; i < GB_VIDEO_HORIZONTAL_PIXELS / 8; ++i) {
354 _setAttribute(renderer->sgbAttributes, i, j, pAfter);
355 }
356 }
357 } else {
358 if (attrX > GB_VIDEO_HORIZONTAL_PIXELS / 8) {
359 attrX = GB_VIDEO_HORIZONTAL_PIXELS / 8;
360 }
361 int j;
362 for (j = 0; j < attrX; ++j) {
363 for (i = 0; i < GB_VIDEO_HORIZONTAL_PIXELS / 8; ++i) {
364 _setAttribute(renderer->sgbAttributes, j, i, pBefore);
365 }
366 }
367 if (attrX < GB_VIDEO_HORIZONTAL_PIXELS / 8) {
368 for (i = 0; i < GB_VIDEO_VERTICAL_PIXELS / 8; ++i) {
369 _setAttribute(renderer->sgbAttributes, attrX, i, pDiv);
370 }
371
372 }
373 for (; j < GB_VIDEO_HORIZONTAL_PIXELS / 8; ++j) {
374 for (i = 0; i < GB_VIDEO_VERTICAL_PIXELS / 8; ++i) {
375 _setAttribute(renderer->sgbAttributes, j, i, pAfter);
376 }
377 }
378 }
379 break;
380 case SGB_ATTR_CHR:
381 attrX = softwareRenderer->sgbPacket[1];
382 attrY = softwareRenderer->sgbPacket[2];
383 if (attrX >= GB_VIDEO_HORIZONTAL_PIXELS / 8) {
384 attrX = 0;
385 }
386 if (attrY >= GB_VIDEO_VERTICAL_PIXELS / 8) {
387 attrY = 0;
388 }
389 sets = softwareRenderer->sgbPacket[3];
390 sets |= softwareRenderer->sgbPacket[4] << 8;
391 attrDirection = softwareRenderer->sgbPacket[5];
392 i = 6;
393 for (; i < (softwareRenderer->sgbCommandHeader & 7) << 4 && sets; ++i) {
394 int j;
395 for (j = 0; j < 4 && sets; ++j, --sets) {
396 uint8_t p = softwareRenderer->sgbPacket[i] >> (6 - j * 2);
397 _setAttribute(renderer->sgbAttributes, attrX, attrY, p & 3);
398 if (attrDirection) {
399 ++attrY;
400 if (attrY >= GB_VIDEO_VERTICAL_PIXELS / 8) {
401 attrY = 0;
402 ++attrX;
403 }
404 if (attrX >= GB_VIDEO_HORIZONTAL_PIXELS / 8) {
405 attrX = 0;
406 }
407 } else {
408 ++attrX;
409 if (attrX >= GB_VIDEO_HORIZONTAL_PIXELS / 8) {
410 attrX = 0;
411 ++attrY;
412 }
413 if (attrY >= GB_VIDEO_VERTICAL_PIXELS / 8) {
414 attrY = 0;
415 }
416 }
417 }
418 }
419
420 break;
421 case SGB_ATRC_EN:
422 case SGB_MASK_EN:
423 if (softwareRenderer->sgbBorders && !renderer->sgbRenderMode) {
424 _regenerateSGBBorder(softwareRenderer);
425 }
426 }
427}
428
429static void GBVideoSoftwareRendererWritePalette(struct GBVideoRenderer* renderer, int index, uint16_t value) {
430 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
431 color_t color = mColorFrom555(value);
432 if (softwareRenderer->model & GB_MODEL_SGB) {
433 if (index < 0x10 && index && !(index & 3)) {
434 color = softwareRenderer->palette[0];
435 } else if (index >= 0x40 && !(index & 0xF)) {
436 color = softwareRenderer->palette[0];
437 }
438 }
439 if (renderer->cache) {
440 mCacheSetWritePalette(renderer->cache, index, color);
441 }
442 if (softwareRenderer->model == GB_MODEL_AGB) {
443 unsigned r = M_R5(value);
444 unsigned g = M_G5(value);
445 unsigned b = M_B5(value);
446 r = r * r;
447 g = g * g;
448 b = b * b;
449#ifdef COLOR_16_BIT
450 r /= 31;
451 g /= 31;
452 b /= 31;
453 color = mColorFrom555(r | (g << 5) | (b << 10));
454#else
455 r >>= 2;
456 g >>= 2;
457 b >>= 2;
458 color = r | (g << 8) | (b << 16);
459#endif
460 }
461 softwareRenderer->palette[index] = color;
462
463 if (softwareRenderer->model & GB_MODEL_SGB && !index && GBRegisterLCDCIsEnable(softwareRenderer->lcdc)) {
464 renderer->writePalette(renderer, 0x04, value);
465 renderer->writePalette(renderer, 0x08, value);
466 renderer->writePalette(renderer, 0x0C, value);
467 renderer->writePalette(renderer, 0x40, value);
468 renderer->writePalette(renderer, 0x50, value);
469 renderer->writePalette(renderer, 0x60, value);
470 renderer->writePalette(renderer, 0x70, value);
471 if (softwareRenderer->sgbBorders && !renderer->sgbRenderMode) {
472 _regenerateSGBBorder(softwareRenderer);
473 }
474 }
475}
476
477static void GBVideoSoftwareRendererWriteVRAM(struct GBVideoRenderer* renderer, uint16_t address) {
478 if (renderer->cache) {
479 mCacheSetWriteVRAM(renderer->cache, address);
480 }
481}
482
483static void GBVideoSoftwareRendererWriteOAM(struct GBVideoRenderer* renderer, uint16_t oam) {
484 UNUSED(renderer);
485 UNUSED(oam);
486 // Nothing to do
487}
488
489static void GBVideoSoftwareRendererDrawRange(struct GBVideoRenderer* renderer, int startX, int endX, int y, struct GBObj* obj, size_t oamMax) {
490 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
491 softwareRenderer->lastY = y;
492 uint8_t* maps = &softwareRenderer->d.vram[GB_BASE_MAP];
493 if (GBRegisterLCDCIsTileMap(softwareRenderer->lcdc)) {
494 maps += GB_SIZE_MAP;
495 }
496 if (softwareRenderer->d.disableBG) {
497 memset(&softwareRenderer->row[startX], 0, endX - startX);
498 }
499 if (GBRegisterLCDCIsBgEnable(softwareRenderer->lcdc) || softwareRenderer->model >= GB_MODEL_CGB) {
500 int wy = softwareRenderer->wy + softwareRenderer->currentWy;
501 int wx = softwareRenderer->wx - 7;
502 if (GBRegisterLCDCIsWindow(softwareRenderer->lcdc) && wy == y && wx <= endX) {
503 softwareRenderer->hasWindow = true;
504 }
505 if (softwareRenderer->hasWindow && wx <= endX) {
506 if (wx > 0 && !softwareRenderer->d.disableBG) {
507 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, startX, wx, softwareRenderer->scx - softwareRenderer->offsetScx, softwareRenderer->scy + y - softwareRenderer->offsetScy);
508 }
509
510 maps = &softwareRenderer->d.vram[GB_BASE_MAP];
511 if (GBRegisterLCDCIsWindowTileMap(softwareRenderer->lcdc)) {
512 maps += GB_SIZE_MAP;
513 }
514 if (!softwareRenderer->d.disableWIN) {
515 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, softwareRenderer->wx - 7, endX, 7 - softwareRenderer->wx - softwareRenderer->offsetWx, y - wy - softwareRenderer->offsetWy);
516 }
517 } else if (!softwareRenderer->d.disableBG) {
518 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, startX, endX, softwareRenderer->scx - softwareRenderer->offsetScx, softwareRenderer->scy + y - softwareRenderer->offsetScy);
519 }
520 } else if (!softwareRenderer->d.disableBG) {
521 memset(&softwareRenderer->row[startX], 0, endX - startX);
522 }
523
524 if (GBRegisterLCDCIsObjEnable(softwareRenderer->lcdc) && !softwareRenderer->d.disableOBJ) {
525 size_t i;
526 for (i = 0; i < oamMax; ++i) {
527 GBVideoSoftwareRendererDrawObj(softwareRenderer, &obj[i], startX, endX, y);
528 }
529 }
530
531 size_t sgbOffset = 0;
532 if (softwareRenderer->model & GB_MODEL_SGB && softwareRenderer->sgbBorders) {
533 sgbOffset = softwareRenderer->outputBufferStride * 40 + 48;
534 }
535 color_t* row = &softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * y + sgbOffset];
536 int x = startX;
537 int p = 0;
538 switch (softwareRenderer->d.sgbRenderMode) {
539 case 0:
540 if (softwareRenderer->model & GB_MODEL_SGB) {
541 p = softwareRenderer->d.sgbAttributes[(startX >> 5) + 5 * (y >> 3)];
542 p >>= 6 - ((x / 4) & 0x6);
543 p &= 3;
544 p <<= 2;
545 }
546 for (; x < ((startX + 7) & ~7) && x < endX; ++x) {
547 row[x] = softwareRenderer->palette[p | softwareRenderer->lookup[softwareRenderer->row[x] & 0x7F]];
548 }
549 for (; x + 7 < (endX & ~7); x += 8) {
550 if (softwareRenderer->model & GB_MODEL_SGB) {
551 p = softwareRenderer->d.sgbAttributes[(x >> 5) + 5 * (y >> 3)];
552 p >>= 6 - ((x / 4) & 0x6);
553 p &= 3;
554 p <<= 2;
555 }
556 row[x + 0] = softwareRenderer->palette[p | softwareRenderer->lookup[softwareRenderer->row[x] & 0x7F]];
557 row[x + 1] = softwareRenderer->palette[p | softwareRenderer->lookup[softwareRenderer->row[x + 1] & 0x7F]];
558 row[x + 2] = softwareRenderer->palette[p | softwareRenderer->lookup[softwareRenderer->row[x + 2] & 0x7F]];
559 row[x + 3] = softwareRenderer->palette[p | softwareRenderer->lookup[softwareRenderer->row[x + 3] & 0x7F]];
560 row[x + 4] = softwareRenderer->palette[p | softwareRenderer->lookup[softwareRenderer->row[x + 4] & 0x7F]];
561 row[x + 5] = softwareRenderer->palette[p | softwareRenderer->lookup[softwareRenderer->row[x + 5] & 0x7F]];
562 row[x + 6] = softwareRenderer->palette[p | softwareRenderer->lookup[softwareRenderer->row[x + 6] & 0x7F]];
563 row[x + 7] = softwareRenderer->palette[p | softwareRenderer->lookup[softwareRenderer->row[x + 7] & 0x7F]];
564 }
565 if (softwareRenderer->model & GB_MODEL_SGB) {
566 p = softwareRenderer->d.sgbAttributes[(x >> 5) + 5 * (y >> 3)];
567 p >>= 6 - ((x / 4) & 0x6);
568 p &= 3;
569 p <<= 2;
570 }
571 for (; x < endX; ++x) {
572 row[x] = softwareRenderer->palette[p | softwareRenderer->lookup[softwareRenderer->row[x] & 0x7F]];
573 }
574 break;
575 case 1:
576 break;
577 case 2:
578 for (; x < ((startX + 7) & ~7) && x < endX; ++x) {
579 row[x] = 0;
580 }
581 for (; x + 7 < (endX & ~7); x += 8) {
582 row[x] = 0;
583 row[x + 1] = 0;
584 row[x + 2] = 0;
585 row[x + 3] = 0;
586 row[x + 4] = 0;
587 row[x + 5] = 0;
588 row[x + 6] = 0;
589 row[x + 7] = 0;
590 }
591 for (; x < endX; ++x) {
592 row[x] = 0;
593 }
594 break;
595 case 3:
596 for (; x < ((startX + 7) & ~7) && x < endX; ++x) {
597 row[x] = softwareRenderer->palette[0];
598 }
599 for (; x + 7 < (endX & ~7); x += 8) {
600 row[x] = softwareRenderer->palette[0];
601 row[x + 1] = softwareRenderer->palette[0];
602 row[x + 2] = softwareRenderer->palette[0];
603 row[x + 3] = softwareRenderer->palette[0];
604 row[x + 4] = softwareRenderer->palette[0];
605 row[x + 5] = softwareRenderer->palette[0];
606 row[x + 6] = softwareRenderer->palette[0];
607 row[x + 7] = softwareRenderer->palette[0];
608 }
609 for (; x < endX; ++x) {
610 row[x] = softwareRenderer->palette[0];
611 }
612 break;
613 }
614}
615
616static void GBVideoSoftwareRendererFinishScanline(struct GBVideoRenderer* renderer, int y) {
617 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
618
619 if (softwareRenderer->sgbTransfer == 1) {
620 size_t offset = 2 * ((y & 7) + (y >> 3) * GB_VIDEO_HORIZONTAL_PIXELS);
621 if (offset >= 0x1000) {
622 return;
623 }
624 uint8_t* buffer = NULL;
625 switch (softwareRenderer->sgbCommandHeader >> 3) {
626 case SGB_PAL_TRN:
627 buffer = renderer->sgbPalRam;
628 break;
629 case SGB_CHR_TRN:
630 buffer = &renderer->sgbCharRam[SGB_SIZE_CHAR_RAM / 2 * (softwareRenderer->sgbPacket[1] & 1)];
631 break;
632 case SGB_PCT_TRN:
633 buffer = renderer->sgbMapRam;
634 break;
635 case SGB_ATTR_TRN:
636 buffer = renderer->sgbAttributeFiles;
637 break;
638 default:
639 break;
640 }
641 if (buffer) {
642 int i;
643 for (i = 0; i < GB_VIDEO_HORIZONTAL_PIXELS; i += 8) {
644 if (UNLIKELY(offset + (i << 1) + 1 >= 0x1000)) {
645 break;
646 }
647 uint8_t hi = 0;
648 uint8_t lo = 0;
649 hi |= (softwareRenderer->row[i + 0] & 0x2) << 6;
650 lo |= (softwareRenderer->row[i + 0] & 0x1) << 7;
651 hi |= (softwareRenderer->row[i + 1] & 0x2) << 5;
652 lo |= (softwareRenderer->row[i + 1] & 0x1) << 6;
653 hi |= (softwareRenderer->row[i + 2] & 0x2) << 4;
654 lo |= (softwareRenderer->row[i + 2] & 0x1) << 5;
655 hi |= (softwareRenderer->row[i + 3] & 0x2) << 3;
656 lo |= (softwareRenderer->row[i + 3] & 0x1) << 4;
657 hi |= (softwareRenderer->row[i + 4] & 0x2) << 2;
658 lo |= (softwareRenderer->row[i + 4] & 0x1) << 3;
659 hi |= (softwareRenderer->row[i + 5] & 0x2) << 1;
660 lo |= (softwareRenderer->row[i + 5] & 0x1) << 2;
661 hi |= (softwareRenderer->row[i + 6] & 0x2) << 0;
662 lo |= (softwareRenderer->row[i + 6] & 0x1) << 1;
663 hi |= (softwareRenderer->row[i + 7] & 0x2) >> 1;
664 lo |= (softwareRenderer->row[i + 7] & 0x1) >> 0;
665 buffer[offset + (i << 1) + 0] = lo;
666 buffer[offset + (i << 1) + 1] = hi;
667 }
668 }
669 }
670}
671
672static void GBVideoSoftwareRendererFinishFrame(struct GBVideoRenderer* renderer) {
673 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
674
675 if (softwareRenderer->temporaryBuffer) {
676 mappedMemoryFree(softwareRenderer->temporaryBuffer, GB_VIDEO_HORIZONTAL_PIXELS * GB_VIDEO_VERTICAL_PIXELS * 4);
677 softwareRenderer->temporaryBuffer = 0;
678 }
679 if (!GBRegisterLCDCIsEnable(softwareRenderer->lcdc)) {
680 _clearScreen(softwareRenderer);
681 }
682 if (softwareRenderer->model & GB_MODEL_SGB) {
683 switch (softwareRenderer->sgbCommandHeader >> 3) {
684 case SGB_PAL_SET:
685 case SGB_ATTR_SET:
686 if (softwareRenderer->sgbPacket[1] & 0x40) {
687 renderer->sgbRenderMode = 0;
688 }
689 break;
690 case SGB_PAL_TRN:
691 case SGB_CHR_TRN:
692 case SGB_PCT_TRN:
693 if (softwareRenderer->sgbTransfer > 0 && softwareRenderer->sgbBorders && !renderer->sgbRenderMode) {
694 // Make sure every buffer sees this if we're multibuffering
695 _regenerateSGBBorder(softwareRenderer);
696 }
697 // Fall through
698 case SGB_ATTR_TRN:
699 ++softwareRenderer->sgbTransfer;
700 if (softwareRenderer->sgbTransfer == 5) {
701 softwareRenderer->sgbCommandHeader = 0;
702 }
703 break;
704 default:
705 break;
706 }
707 }
708 softwareRenderer->lastY = GB_VIDEO_VERTICAL_PIXELS;
709 softwareRenderer->currentWy = 0;
710 softwareRenderer->hasWindow = false;
711}
712
713static void GBVideoSoftwareRendererEnableSGBBorder(struct GBVideoRenderer* renderer, bool enable) {
714 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
715 if (softwareRenderer->model & GB_MODEL_SGB) {
716 if (enable == softwareRenderer->sgbBorders) {
717 return;
718 }
719 softwareRenderer->sgbBorders = enable;
720 if (softwareRenderer->sgbBorders && !renderer->sgbRenderMode) {
721 _regenerateSGBBorder(softwareRenderer);
722 }
723 }
724}
725
726static void GBVideoSoftwareRendererDrawBackground(struct GBVideoSoftwareRenderer* renderer, uint8_t* maps, int startX, int endX, int sx, int sy) {
727 uint8_t* data = renderer->d.vram;
728 uint8_t* attr = &maps[GB_SIZE_VRAM_BANK0];
729 if (!GBRegisterLCDCIsTileData(renderer->lcdc)) {
730 data += 0x1000;
731 }
732 int topY = ((sy >> 3) & 0x1F) * 0x20;
733 int bottomY = sy & 7;
734 if (startX < 0) {
735 startX = 0;
736 }
737 int x;
738 if ((startX + sx) & 7) {
739 int startX2 = startX + 8 - ((startX + sx) & 7);
740 for (x = startX; x < startX2; ++x) {
741 uint8_t* localData = data;
742 int localY = bottomY;
743 int topX = ((x + sx) >> 3) & 0x1F;
744 int bottomX = 7 - ((x + sx) & 7);
745 int bgTile;
746 if (GBRegisterLCDCIsTileData(renderer->lcdc)) {
747 bgTile = maps[topX + topY];
748 } else {
749 bgTile = ((int8_t*) maps)[topX + topY];
750 }
751 int p = 0;
752 if (renderer->model >= GB_MODEL_CGB) {
753 GBObjAttributes attrs = attr[topX + topY];
754 p = GBObjAttributesGetCGBPalette(attrs) * 4;
755 if (GBObjAttributesIsPriority(attrs) && GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
756 p |= 0x80;
757 }
758 if (GBObjAttributesIsBank(attrs)) {
759 localData += GB_SIZE_VRAM_BANK0;
760 }
761 if (GBObjAttributesIsYFlip(attrs)) {
762 localY = 7 - bottomY;
763 }
764 if (GBObjAttributesIsXFlip(attrs)) {
765 bottomX = 7 - bottomX;
766 }
767 }
768 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
769 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
770 tileDataUpper >>= bottomX;
771 tileDataLower >>= bottomX;
772 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
773 }
774 startX = startX2;
775 }
776 for (x = startX; x < endX; x += 8) {
777 uint8_t* localData = data;
778 int localY = bottomY;
779 int topX = ((x + sx) >> 3) & 0x1F;
780 int bgTile;
781 if (GBRegisterLCDCIsTileData(renderer->lcdc)) {
782 bgTile = maps[topX + topY];
783 } else {
784 bgTile = ((int8_t*) maps)[topX + topY];
785 }
786 int p = 0;
787 if (renderer->model >= GB_MODEL_CGB) {
788 GBObjAttributes attrs = attr[topX + topY];
789 p = GBObjAttributesGetCGBPalette(attrs) * 4;
790 if (GBObjAttributesIsPriority(attrs) && GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
791 p |= 0x80;
792 }
793 if (GBObjAttributesIsBank(attrs)) {
794 localData += GB_SIZE_VRAM_BANK0;
795 }
796 if (GBObjAttributesIsYFlip(attrs)) {
797 localY = 7 - bottomY;
798 }
799 if (GBObjAttributesIsXFlip(attrs)) {
800 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
801 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
802 renderer->row[x + 0] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
803 renderer->row[x + 1] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
804 renderer->row[x + 2] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
805 renderer->row[x + 3] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
806 renderer->row[x + 4] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
807 renderer->row[x + 5] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
808 renderer->row[x + 6] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
809 renderer->row[x + 7] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
810 continue;
811 }
812 }
813 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
814 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
815 renderer->row[x + 7] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
816 renderer->row[x + 6] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
817 renderer->row[x + 5] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
818 renderer->row[x + 4] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
819 renderer->row[x + 3] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
820 renderer->row[x + 2] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
821 renderer->row[x + 1] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
822 renderer->row[x + 0] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
823 }
824}
825
826static void GBVideoSoftwareRendererDrawObj(struct GBVideoSoftwareRenderer* renderer, struct GBObj* obj, int startX, int endX, int y) {
827 int objX = obj->x + renderer->objOffsetX;
828 int ix = objX - 8;
829 if (endX < ix || startX >= ix + 8) {
830 return;
831 }
832 if (objX < endX) {
833 endX = objX;
834 }
835 if (objX - 8 > startX) {
836 startX = objX - 8;
837 }
838 if (startX < 0) {
839 startX = 0;
840 }
841 uint8_t* data = renderer->d.vram;
842 int tileOffset = 0;
843 int bottomY;
844 int objY = obj->y + renderer->objOffsetY;
845 if (GBObjAttributesIsYFlip(obj->attr)) {
846 bottomY = 7 - ((y - objY - 16) & 7);
847 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && y - objY < -8) {
848 ++tileOffset;
849 }
850 } else {
851 bottomY = (y - objY - 16) & 7;
852 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && y - objY >= -8) {
853 ++tileOffset;
854 }
855 }
856 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && obj->tile & 1) {
857 --tileOffset;
858 }
859 uint8_t mask = GBObjAttributesIsPriority(obj->attr) ? 0x63 : 0x60;
860 uint8_t mask2 = GBObjAttributesIsPriority(obj->attr) ? 0 : 0x83;
861 int p;
862 if (renderer->model >= GB_MODEL_CGB) {
863 p = (GBObjAttributesGetCGBPalette(obj->attr) + 8) * 4;
864 if (GBObjAttributesIsBank(obj->attr)) {
865 data += GB_SIZE_VRAM_BANK0;
866 }
867 if (!GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
868 mask = 0x60;
869 mask2 = 0x83;
870 }
871 } else {
872 p = (GBObjAttributesGetPalette(obj->attr) + 8) * 4;
873 }
874 int bottomX;
875 int x = startX;
876 if ((x - objX) & 7) {
877 for (; x < endX; ++x) {
878 if (GBObjAttributesIsXFlip(obj->attr)) {
879 bottomX = (x - objX) & 7;
880 } else {
881 bottomX = 7 - ((x - objX) & 7);
882 }
883 int objTile = obj->tile + tileOffset;
884 uint8_t tileDataLower = data[(objTile * 8 + bottomY) * 2];
885 uint8_t tileDataUpper = data[(objTile * 8 + bottomY) * 2 + 1];
886 tileDataUpper >>= bottomX;
887 tileDataLower >>= bottomX;
888 color_t current = renderer->row[x];
889 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
890 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
891 }
892 }
893 } else if (GBObjAttributesIsXFlip(obj->attr)) {
894 int objTile = obj->tile + tileOffset;
895 uint8_t tileDataLower = data[(objTile * 8 + bottomY) * 2];
896 uint8_t tileDataUpper = data[(objTile * 8 + bottomY) * 2 + 1];
897 color_t current;
898 current = renderer->row[x];
899 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
900 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
901 }
902 current = renderer->row[x + 1];
903 if (((tileDataUpper | tileDataLower) & 2) && !(current & mask) && (current & mask2) <= 0x80) {
904 renderer->row[x + 1] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
905 }
906 current = renderer->row[x + 2];
907 if (((tileDataUpper | tileDataLower) & 4) && !(current & mask) && (current & mask2) <= 0x80) {
908 renderer->row[x + 2] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
909 }
910 current = renderer->row[x + 3];
911 if (((tileDataUpper | tileDataLower) & 8) && !(current & mask) && (current & mask2) <= 0x80) {
912 renderer->row[x + 3] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
913 }
914 current = renderer->row[x + 4];
915 if (((tileDataUpper | tileDataLower) & 16) && !(current & mask) && (current & mask2) <= 0x80) {
916 renderer->row[x + 4] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
917 }
918 current = renderer->row[x + 5];
919 if (((tileDataUpper | tileDataLower) & 32) && !(current & mask) && (current & mask2) <= 0x80) {
920 renderer->row[x + 5] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
921 }
922 current = renderer->row[x + 6];
923 if (((tileDataUpper | tileDataLower) & 64) && !(current & mask) && (current & mask2) <= 0x80) {
924 renderer->row[x + 6] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
925 }
926 current = renderer->row[x + 7];
927 if (((tileDataUpper | tileDataLower) & 128) && !(current & mask) && (current & mask2) <= 0x80) {
928 renderer->row[x + 7] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
929 }
930 } else {
931 int objTile = obj->tile + tileOffset;
932 uint8_t tileDataLower = data[(objTile * 8 + bottomY) * 2];
933 uint8_t tileDataUpper = data[(objTile * 8 + bottomY) * 2 + 1];
934 color_t current;
935 current = renderer->row[x + 7];
936 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
937 renderer->row[x + 7] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
938 }
939 current = renderer->row[x + 6];
940 if (((tileDataUpper | tileDataLower) & 2) && !(current & mask) && (current & mask2) <= 0x80) {
941 renderer->row[x + 6] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
942 }
943 current = renderer->row[x + 5];
944 if (((tileDataUpper | tileDataLower) & 4) && !(current & mask) && (current & mask2) <= 0x80) {
945 renderer->row[x + 5] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
946 }
947 current = renderer->row[x + 4];
948 if (((tileDataUpper | tileDataLower) & 8) && !(current & mask) && (current & mask2) <= 0x80) {
949 renderer->row[x + 4] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
950 }
951 current = renderer->row[x + 3];
952 if (((tileDataUpper | tileDataLower) & 16) && !(current & mask) && (current & mask2) <= 0x80) {
953 renderer->row[x + 3] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
954 }
955 current = renderer->row[x + 2];
956 if (((tileDataUpper | tileDataLower) & 32) && !(current & mask) && (current & mask2) <= 0x80) {
957 renderer->row[x + 2] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
958 }
959 current = renderer->row[x + 1];
960 if (((tileDataUpper | tileDataLower) & 64) && !(current & mask) && (current & mask2) <= 0x80) {
961 renderer->row[x + 1] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
962 }
963 current = renderer->row[x];
964 if (((tileDataUpper | tileDataLower) & 128) && !(current & mask) && (current & mask2) <= 0x80) {
965 renderer->row[x] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
966 }
967 }
968}
969
970static void GBVideoSoftwareRendererGetPixels(struct GBVideoRenderer* renderer, size_t* stride, const void** pixels) {
971 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
972 *stride = softwareRenderer->outputBufferStride;
973 *pixels = softwareRenderer->outputBuffer;
974}
975
976static void GBVideoSoftwareRendererPutPixels(struct GBVideoRenderer* renderer, size_t stride, const void* pixels) {
977 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
978 // TODO: Share with GBAVideoSoftwareRendererGetPixels
979
980 const color_t* colorPixels = pixels;
981 unsigned i;
982 for (i = 0; i < GB_VIDEO_VERTICAL_PIXELS; ++i) {
983 memmove(&softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * i], &colorPixels[stride * i], GB_VIDEO_HORIZONTAL_PIXELS * BYTES_PER_PIXEL);
984 }
985}