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/tile-cache.h>
9#include <mgba/internal/gb/io.h>
10#include <mgba-util/memory.h>
11
12static void GBVideoSoftwareRendererInit(struct GBVideoRenderer* renderer, enum GBModel model);
13static void GBVideoSoftwareRendererDeinit(struct GBVideoRenderer* renderer);
14static uint8_t GBVideoSoftwareRendererWriteVideoRegister(struct GBVideoRenderer* renderer, uint16_t address, uint8_t value);
15static void GBVideoSoftwareRendererWritePalette(struct GBVideoRenderer* renderer, int index, uint16_t value);
16static void GBVideoSoftwareRendererWriteVRAM(struct GBVideoRenderer* renderer, uint16_t address);
17static void GBVideoSoftwareRendererWriteOAM(struct GBVideoRenderer* renderer, uint16_t oam);
18static void GBVideoSoftwareRendererDrawRange(struct GBVideoRenderer* renderer, int startX, int endX, int y, struct GBObj* obj, size_t oamMax);
19static void GBVideoSoftwareRendererFinishScanline(struct GBVideoRenderer* renderer, int y);
20static void GBVideoSoftwareRendererFinishFrame(struct GBVideoRenderer* renderer);
21static void GBVideoSoftwareRendererGetPixels(struct GBVideoRenderer* renderer, size_t* stride, const void** pixels);
22static void GBVideoSoftwareRendererPutPixels(struct GBVideoRenderer* renderer, size_t stride, const void* pixels);
23
24static void GBVideoSoftwareRendererDrawBackground(struct GBVideoSoftwareRenderer* renderer, uint8_t* maps, int startX, int endX, int sx, int sy);
25static void GBVideoSoftwareRendererDrawObj(struct GBVideoSoftwareRenderer* renderer, struct GBObj* obj, int startX, int endX, int y);
26
27static void _clearScreen(struct GBVideoSoftwareRenderer* renderer) {
28 int y;
29 for (y = 0; y < GB_VIDEO_VERTICAL_PIXELS; ++y) {
30 color_t* row = &renderer->outputBuffer[renderer->outputBufferStride * y];
31 int x;
32 for (x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS; x += 4) {
33 row[x + 0] = renderer->palette[0];
34 row[x + 1] = renderer->palette[0];
35 row[x + 2] = renderer->palette[0];
36 row[x + 3] = renderer->palette[0];
37 }
38 }
39}
40
41static bool _inWindow(struct GBVideoSoftwareRenderer* renderer) {
42 return GBRegisterLCDCIsWindow(renderer->lcdc) && GB_VIDEO_HORIZONTAL_PIXELS + 7 > renderer->wx;
43}
44
45void GBVideoSoftwareRendererCreate(struct GBVideoSoftwareRenderer* renderer) {
46 renderer->d.init = GBVideoSoftwareRendererInit;
47 renderer->d.deinit = GBVideoSoftwareRendererDeinit;
48 renderer->d.writeVideoRegister = GBVideoSoftwareRendererWriteVideoRegister;
49 renderer->d.writePalette = GBVideoSoftwareRendererWritePalette;
50 renderer->d.writeVRAM = GBVideoSoftwareRendererWriteVRAM;
51 renderer->d.writeOAM = GBVideoSoftwareRendererWriteOAM;
52 renderer->d.drawRange = GBVideoSoftwareRendererDrawRange;
53 renderer->d.finishScanline = GBVideoSoftwareRendererFinishScanline;
54 renderer->d.finishFrame = GBVideoSoftwareRendererFinishFrame;
55 renderer->d.getPixels = GBVideoSoftwareRendererGetPixels;
56 renderer->d.putPixels = GBVideoSoftwareRendererPutPixels;
57
58 renderer->d.disableBG = false;
59 renderer->d.disableOBJ = false;
60 renderer->d.disableWIN = false;
61
62 renderer->temporaryBuffer = 0;
63}
64
65static void GBVideoSoftwareRendererInit(struct GBVideoRenderer* renderer, enum GBModel model) {
66 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
67 softwareRenderer->lcdc = 0;
68 softwareRenderer->scy = 0;
69 softwareRenderer->scx = 0;
70 softwareRenderer->wy = 0;
71 softwareRenderer->currentWy = 0;
72 softwareRenderer->lastY = 0;
73 softwareRenderer->hasWindow = false;
74 softwareRenderer->wx = 0;
75 softwareRenderer->model = model;
76}
77
78static void GBVideoSoftwareRendererDeinit(struct GBVideoRenderer* renderer) {
79 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
80 UNUSED(softwareRenderer);
81}
82
83static void GBVideoSoftwareRendererUpdateWindow(struct GBVideoSoftwareRenderer* renderer, bool before, bool after) {
84 if (renderer->lastY >= GB_VIDEO_VERTICAL_PIXELS || after == before) {
85 return;
86 }
87 if (renderer->lastY >= renderer->wy) {
88 if (!after) {
89 renderer->currentWy -= renderer->lastY;
90 renderer->hasWindow = true;
91 } else {
92 if (!renderer->hasWindow) {
93 if (renderer->lastY > renderer->wy) {
94 renderer->currentWy = GB_VIDEO_VERTICAL_PIXELS;
95 } else {
96 renderer->currentWy = renderer->lastY - renderer->wy;
97 }
98 } else {
99 renderer->currentWy += renderer->lastY;
100 }
101 }
102 }
103}
104
105static uint8_t GBVideoSoftwareRendererWriteVideoRegister(struct GBVideoRenderer* renderer, uint16_t address, uint8_t value) {
106 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
107 bool wasWindow = _inWindow(softwareRenderer);
108 switch (address) {
109 case REG_LCDC:
110 softwareRenderer->lcdc = value;
111 GBVideoSoftwareRendererUpdateWindow(softwareRenderer, wasWindow, _inWindow(softwareRenderer));
112 break;
113 case REG_SCY:
114 softwareRenderer->scy = value;
115 break;
116 case REG_SCX:
117 softwareRenderer->scx = value;
118 break;
119 case REG_WY:
120 softwareRenderer->wy = value;
121 GBVideoSoftwareRendererUpdateWindow(softwareRenderer, wasWindow, _inWindow(softwareRenderer));
122 break;
123 case REG_WX:
124 softwareRenderer->wx = value;
125 GBVideoSoftwareRendererUpdateWindow(softwareRenderer, wasWindow, _inWindow(softwareRenderer));
126 break;
127 }
128 return value;
129}
130
131static void GBVideoSoftwareRendererWritePalette(struct GBVideoRenderer* renderer, int index, uint16_t value) {
132 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
133#ifdef COLOR_16_BIT
134#ifdef COLOR_5_6_5
135 color_t color = 0;
136 color |= (value & 0x001F) << 11;
137 color |= (value & 0x03E0) << 1;
138 color |= (value & 0x7C00) >> 10;
139#else
140 color_t color = value;
141#endif
142#else
143 color_t color = 0;
144 color |= (value << 3) & 0xF8;
145 color |= (value << 6) & 0xF800;
146 color |= (value << 9) & 0xF80000;
147 color |= (color >> 5) & 0x070707;
148#endif
149 softwareRenderer->palette[index] = color;
150 if (renderer->cache) {
151 mTileCacheWritePalette(renderer->cache, index << 1);
152 }
153}
154
155static void GBVideoSoftwareRendererWriteVRAM(struct GBVideoRenderer* renderer, uint16_t address) {
156 if (renderer->cache) {
157 mTileCacheWriteVRAM(renderer->cache, address);
158 }
159}
160
161static void GBVideoSoftwareRendererWriteOAM(struct GBVideoRenderer* renderer, uint16_t oam) {
162 UNUSED(renderer);
163 UNUSED(oam);
164 // Nothing to do
165}
166
167static void GBVideoSoftwareRendererDrawRange(struct GBVideoRenderer* renderer, int startX, int endX, int y, struct GBObj* obj, size_t oamMax) {
168 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
169 softwareRenderer->lastY = y;
170 uint8_t* maps = &softwareRenderer->d.vram[GB_BASE_MAP];
171 if (GBRegisterLCDCIsTileMap(softwareRenderer->lcdc)) {
172 maps += GB_SIZE_MAP;
173 }
174 if (softwareRenderer->d.disableBG) {
175 memset(&softwareRenderer->row[startX], 0, endX - startX);
176 }
177 if (GBRegisterLCDCIsBgEnable(softwareRenderer->lcdc) || softwareRenderer->model >= GB_MODEL_CGB) {
178 int wy = softwareRenderer->wy + softwareRenderer->currentWy;
179 if (GBRegisterLCDCIsWindow(softwareRenderer->lcdc) && wy <= y && endX >= softwareRenderer->wx - 7) {
180 if (softwareRenderer->wx - 7 > 0 && !softwareRenderer->d.disableBG) {
181 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, startX, softwareRenderer->wx - 7, softwareRenderer->scx, softwareRenderer->scy + y);
182 }
183
184 maps = &softwareRenderer->d.vram[GB_BASE_MAP];
185 if (GBRegisterLCDCIsWindowTileMap(softwareRenderer->lcdc)) {
186 maps += GB_SIZE_MAP;
187 }
188 if (!softwareRenderer->d.disableWIN) {
189 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, softwareRenderer->wx - 7, endX, 7 - softwareRenderer->wx, y - wy);
190 }
191 } else if (!softwareRenderer->d.disableBG) {
192 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, startX, endX, softwareRenderer->scx, softwareRenderer->scy + y);
193 }
194 } else if (!softwareRenderer->d.disableBG) {
195 memset(&softwareRenderer->row[startX], 0, endX - startX);
196 }
197
198 if (GBRegisterLCDCIsObjEnable(softwareRenderer->lcdc) && !softwareRenderer->d.disableOBJ) {
199 size_t i;
200 for (i = 0; i < oamMax; ++i) {
201 GBVideoSoftwareRendererDrawObj(softwareRenderer, &obj[i], startX, endX, y);
202 }
203 }
204 color_t* row = &softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * y];
205 int x;
206 for (x = startX; x + 7 < (endX & ~7); x += 8) {
207 row[x] = softwareRenderer->palette[softwareRenderer->row[x] & 0x7F];
208 row[x + 1] = softwareRenderer->palette[softwareRenderer->row[x + 1] & 0x7F];
209 row[x + 2] = softwareRenderer->palette[softwareRenderer->row[x + 2] & 0x7F];
210 row[x + 3] = softwareRenderer->palette[softwareRenderer->row[x + 3] & 0x7F];
211 row[x + 4] = softwareRenderer->palette[softwareRenderer->row[x + 4] & 0x7F];
212 row[x + 5] = softwareRenderer->palette[softwareRenderer->row[x + 5] & 0x7F];
213 row[x + 6] = softwareRenderer->palette[softwareRenderer->row[x + 6] & 0x7F];
214 row[x + 7] = softwareRenderer->palette[softwareRenderer->row[x + 7] & 0x7F];
215 }
216 for (; x < endX; ++x) {
217 row[x] = softwareRenderer->palette[softwareRenderer->row[x] & 0x7F];
218 }
219}
220
221static void GBVideoSoftwareRendererFinishScanline(struct GBVideoRenderer* renderer, int y) {
222 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
223}
224
225static void GBVideoSoftwareRendererFinishFrame(struct GBVideoRenderer* renderer) {
226 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
227
228 if (softwareRenderer->temporaryBuffer) {
229 mappedMemoryFree(softwareRenderer->temporaryBuffer, GB_VIDEO_HORIZONTAL_PIXELS * GB_VIDEO_VERTICAL_PIXELS * 4);
230 softwareRenderer->temporaryBuffer = 0;
231 }
232 if (!GBRegisterLCDCIsEnable(softwareRenderer->lcdc)) {
233 _clearScreen(softwareRenderer);
234 }
235 softwareRenderer->lastY = GB_VIDEO_VERTICAL_PIXELS;
236 softwareRenderer->currentWy = 0;
237 softwareRenderer->hasWindow = false;
238}
239
240static void GBVideoSoftwareRendererDrawBackground(struct GBVideoSoftwareRenderer* renderer, uint8_t* maps, int startX, int endX, int sx, int sy) {
241 uint8_t* data = renderer->d.vram;
242 uint8_t* attr = &maps[GB_SIZE_VRAM_BANK0];
243 if (!GBRegisterLCDCIsTileData(renderer->lcdc)) {
244 data += 0x1000;
245 }
246 int topY = ((sy >> 3) & 0x1F) * 0x20;
247 int bottomY = sy & 7;
248 if (startX < 0) {
249 startX = 0;
250 }
251 int x;
252 if ((startX + sx) & 7) {
253 int startX2 = startX + 8 - ((startX + sx) & 7);
254 for (x = startX; x < startX2; ++x) {
255 uint8_t* localData = data;
256 int localY = bottomY;
257 int topX = ((x + sx) >> 3) & 0x1F;
258 int bottomX = 7 - ((x + sx) & 7);
259 int bgTile;
260 if (GBRegisterLCDCIsTileData(renderer->lcdc)) {
261 bgTile = maps[topX + topY];
262 } else {
263 bgTile = ((int8_t*) maps)[topX + topY];
264 }
265 int p = 0;
266 if (renderer->model >= GB_MODEL_CGB) {
267 GBObjAttributes attrs = attr[topX + topY];
268 p = GBObjAttributesGetCGBPalette(attrs) * 4;
269 if (GBObjAttributesIsPriority(attrs) && GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
270 p |= 0x80;
271 }
272 if (GBObjAttributesIsBank(attrs)) {
273 localData += GB_SIZE_VRAM_BANK0;
274 }
275 if (GBObjAttributesIsYFlip(attrs)) {
276 localY = 7 - bottomY;
277 }
278 if (GBObjAttributesIsXFlip(attrs)) {
279 bottomX = 7 - bottomX;
280 }
281 }
282 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
283 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
284 tileDataUpper >>= bottomX;
285 tileDataLower >>= bottomX;
286 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
287 }
288 startX = startX2;
289 }
290 for (x = startX; x < endX; x += 8) {
291 uint8_t* localData = data;
292 int localY = bottomY;
293 int topX = ((x + sx) >> 3) & 0x1F;
294 int bgTile;
295 if (GBRegisterLCDCIsTileData(renderer->lcdc)) {
296 bgTile = maps[topX + topY];
297 } else {
298 bgTile = ((int8_t*) maps)[topX + topY];
299 }
300 int p = 0;
301 if (renderer->model >= GB_MODEL_CGB) {
302 GBObjAttributes attrs = attr[topX + topY];
303 p = GBObjAttributesGetCGBPalette(attrs) * 4;
304 if (GBObjAttributesIsPriority(attrs) && GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
305 p |= 0x80;
306 }
307 if (GBObjAttributesIsBank(attrs)) {
308 localData += GB_SIZE_VRAM_BANK0;
309 }
310 if (GBObjAttributesIsYFlip(attrs)) {
311 localY = 7 - bottomY;
312 }
313 if (GBObjAttributesIsXFlip(attrs)) {
314 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
315 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
316 renderer->row[x + 0] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
317 renderer->row[x + 1] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
318 renderer->row[x + 2] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
319 renderer->row[x + 3] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
320 renderer->row[x + 4] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
321 renderer->row[x + 5] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
322 renderer->row[x + 6] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
323 renderer->row[x + 7] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
324 continue;
325 }
326 }
327 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
328 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
329 renderer->row[x + 7] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
330 renderer->row[x + 6] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
331 renderer->row[x + 5] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
332 renderer->row[x + 4] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
333 renderer->row[x + 3] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
334 renderer->row[x + 2] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
335 renderer->row[x + 1] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
336 renderer->row[x + 0] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
337 }
338}
339
340static void GBVideoSoftwareRendererDrawObj(struct GBVideoSoftwareRenderer* renderer, struct GBObj* obj, int startX, int endX, int y) {
341 int ix = obj->x - 8;
342 if (endX < ix || startX >= ix + 8) {
343 return;
344 }
345 if (obj->x < endX) {
346 endX = obj->x;
347 }
348 if (obj->x - 8 > startX) {
349 startX = obj->x - 8;
350 }
351 if (startX < 0) {
352 startX = 0;
353 }
354 uint8_t* data = renderer->d.vram;
355 int tileOffset = 0;
356 int bottomY;
357 if (GBObjAttributesIsYFlip(obj->attr)) {
358 bottomY = 7 - ((y - obj->y - 16) & 7);
359 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && y - obj->y < -8) {
360 ++tileOffset;
361 }
362 } else {
363 bottomY = (y - obj->y - 16) & 7;
364 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && y - obj->y >= -8) {
365 ++tileOffset;
366 }
367 }
368 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && obj->tile & 1) {
369 --tileOffset;
370 }
371 uint8_t mask = GBObjAttributesIsPriority(obj->attr) ? 0x63 : 0x60;
372 uint8_t mask2 = GBObjAttributesIsPriority(obj->attr) ? 0 : 0x83;
373 int p;
374 if (renderer->model >= GB_MODEL_CGB) {
375 p = (GBObjAttributesGetCGBPalette(obj->attr) + 8) * 4;
376 if (GBObjAttributesIsBank(obj->attr)) {
377 data += GB_SIZE_VRAM_BANK0;
378 }
379 if (!GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
380 mask = 0x60;
381 mask2 = 0x83;
382 }
383 } else {
384 p = (GBObjAttributesGetPalette(obj->attr) + 8) * 4;
385 }
386 int bottomX;
387 int x = startX;
388 if ((x - obj->x) & 7) {
389 for (; x < endX; ++x) {
390 if (GBObjAttributesIsXFlip(obj->attr)) {
391 bottomX = (x - obj->x) & 7;
392 } else {
393 bottomX = 7 - ((x - obj->x) & 7);
394 }
395 int objTile = obj->tile + tileOffset;
396 uint8_t tileDataLower = data[(objTile * 8 + bottomY) * 2];
397 uint8_t tileDataUpper = data[(objTile * 8 + bottomY) * 2 + 1];
398 tileDataUpper >>= bottomX;
399 tileDataLower >>= bottomX;
400 color_t current = renderer->row[x];
401 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
402 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
403 }
404 }
405 } else if (GBObjAttributesIsXFlip(obj->attr)) {
406 int objTile = obj->tile + tileOffset;
407 uint8_t tileDataLower = data[(objTile * 8 + bottomY) * 2];
408 uint8_t tileDataUpper = data[(objTile * 8 + bottomY) * 2 + 1];
409 color_t current;
410 current = renderer->row[x];
411 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
412 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
413 }
414 current = renderer->row[x + 1];
415 if (((tileDataUpper | tileDataLower) & 2) && !(current & mask) && (current & mask2) <= 0x80) {
416 renderer->row[x + 1] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
417 }
418 current = renderer->row[x + 2];
419 if (((tileDataUpper | tileDataLower) & 4) && !(current & mask) && (current & mask2) <= 0x80) {
420 renderer->row[x + 2] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
421 }
422 current = renderer->row[x + 3];
423 if (((tileDataUpper | tileDataLower) & 8) && !(current & mask) && (current & mask2) <= 0x80) {
424 renderer->row[x + 3] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
425 }
426 current = renderer->row[x + 4];
427 if (((tileDataUpper | tileDataLower) & 16) && !(current & mask) && (current & mask2) <= 0x80) {
428 renderer->row[x + 4] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
429 }
430 current = renderer->row[x + 5];
431 if (((tileDataUpper | tileDataLower) & 32) && !(current & mask) && (current & mask2) <= 0x80) {
432 renderer->row[x + 5] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
433 }
434 current = renderer->row[x + 6];
435 if (((tileDataUpper | tileDataLower) & 64) && !(current & mask) && (current & mask2) <= 0x80) {
436 renderer->row[x + 6] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
437 }
438 current = renderer->row[x + 7];
439 if (((tileDataUpper | tileDataLower) & 128) && !(current & mask) && (current & mask2) <= 0x80) {
440 renderer->row[x + 7] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
441 }
442 } else {
443 int objTile = obj->tile + tileOffset;
444 uint8_t tileDataLower = data[(objTile * 8 + bottomY) * 2];
445 uint8_t tileDataUpper = data[(objTile * 8 + bottomY) * 2 + 1];
446 color_t current;
447 current = renderer->row[x + 7];
448 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
449 renderer->row[x + 7] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
450 }
451 current = renderer->row[x + 6];
452 if (((tileDataUpper | tileDataLower) & 2) && !(current & mask) && (current & mask2) <= 0x80) {
453 renderer->row[x + 6] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
454 }
455 current = renderer->row[x + 5];
456 if (((tileDataUpper | tileDataLower) & 4) && !(current & mask) && (current & mask2) <= 0x80) {
457 renderer->row[x + 5] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
458 }
459 current = renderer->row[x + 4];
460 if (((tileDataUpper | tileDataLower) & 8) && !(current & mask) && (current & mask2) <= 0x80) {
461 renderer->row[x + 4] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
462 }
463 current = renderer->row[x + 3];
464 if (((tileDataUpper | tileDataLower) & 16) && !(current & mask) && (current & mask2) <= 0x80) {
465 renderer->row[x + 3] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
466 }
467 current = renderer->row[x + 2];
468 if (((tileDataUpper | tileDataLower) & 32) && !(current & mask) && (current & mask2) <= 0x80) {
469 renderer->row[x + 2] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
470 }
471 current = renderer->row[x + 1];
472 if (((tileDataUpper | tileDataLower) & 64) && !(current & mask) && (current & mask2) <= 0x80) {
473 renderer->row[x + 1] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
474 }
475 current = renderer->row[x];
476 if (((tileDataUpper | tileDataLower) & 128) && !(current & mask) && (current & mask2) <= 0x80) {
477 renderer->row[x] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
478 }
479 }
480}
481
482static void GBVideoSoftwareRendererGetPixels(struct GBVideoRenderer* renderer, size_t* stride, const void** pixels) {
483 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
484 *stride = softwareRenderer->outputBufferStride;
485 *pixels = softwareRenderer->outputBuffer;
486}
487
488static void GBVideoSoftwareRendererPutPixels(struct GBVideoRenderer* renderer, size_t stride, const void* pixels) {
489 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
490 // TODO: Share with GBAVideoSoftwareRendererGetPixels
491
492 const color_t* colorPixels = pixels;
493 unsigned i;
494 for (i = 0; i < GB_VIDEO_VERTICAL_PIXELS; ++i) {
495 memmove(&softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * i], &colorPixels[stride * i], GB_VIDEO_HORIZONTAL_PIXELS * BYTES_PER_PIXEL);
496 }
497}