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
41void GBVideoSoftwareRendererCreate(struct GBVideoSoftwareRenderer* renderer) {
42 renderer->d.init = GBVideoSoftwareRendererInit;
43 renderer->d.deinit = GBVideoSoftwareRendererDeinit;
44 renderer->d.writeVideoRegister = GBVideoSoftwareRendererWriteVideoRegister;
45 renderer->d.writePalette = GBVideoSoftwareRendererWritePalette;
46 renderer->d.writeVRAM = GBVideoSoftwareRendererWriteVRAM;
47 renderer->d.writeOAM = GBVideoSoftwareRendererWriteOAM;
48 renderer->d.drawRange = GBVideoSoftwareRendererDrawRange;
49 renderer->d.finishScanline = GBVideoSoftwareRendererFinishScanline;
50 renderer->d.finishFrame = GBVideoSoftwareRendererFinishFrame;
51 renderer->d.getPixels = GBVideoSoftwareRendererGetPixels;
52 renderer->d.putPixels = GBVideoSoftwareRendererPutPixels;
53
54 renderer->d.disableBG = false;
55 renderer->d.disableOBJ = false;
56 renderer->d.disableWIN = false;
57
58 renderer->temporaryBuffer = 0;
59}
60
61static void GBVideoSoftwareRendererInit(struct GBVideoRenderer* renderer, enum GBModel model) {
62 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
63 softwareRenderer->lcdc = 0;
64 softwareRenderer->scy = 0;
65 softwareRenderer->scx = 0;
66 softwareRenderer->wy = 0;
67 softwareRenderer->currentWy = 0;
68 softwareRenderer->wx = 0;
69 softwareRenderer->model = model;
70}
71
72static void GBVideoSoftwareRendererDeinit(struct GBVideoRenderer* renderer) {
73 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
74 UNUSED(softwareRenderer);
75}
76
77static uint8_t GBVideoSoftwareRendererWriteVideoRegister(struct GBVideoRenderer* renderer, uint16_t address, uint8_t value) {
78 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
79 switch (address) {
80 case REG_LCDC:
81 softwareRenderer->lcdc = value;
82 break;
83 case REG_SCY:
84 softwareRenderer->scy = value;
85 break;
86 case REG_SCX:
87 softwareRenderer->scx = value;
88 break;
89 case REG_WY:
90 softwareRenderer->wy = value;
91 break;
92 case REG_WX:
93 softwareRenderer->wx = value;
94 break;
95 }
96 return value;
97}
98
99static void GBVideoSoftwareRendererWritePalette(struct GBVideoRenderer* renderer, int index, uint16_t value) {
100 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
101#ifdef COLOR_16_BIT
102#ifdef COLOR_5_6_5
103 color_t color = 0;
104 color |= (value & 0x001F) << 11;
105 color |= (value & 0x03E0) << 1;
106 color |= (value & 0x7C00) >> 10;
107#else
108 color_t color = value;
109#endif
110#else
111 color_t color = 0;
112 color |= (value << 3) & 0xF8;
113 color |= (value << 6) & 0xF800;
114 color |= (value << 9) & 0xF80000;
115 color |= (color >> 5) & 0x070707;
116#endif
117 softwareRenderer->palette[index] = color;
118 if (renderer->cache) {
119 mTileCacheWritePalette(renderer->cache, index << 1);
120 }
121}
122
123static void GBVideoSoftwareRendererWriteVRAM(struct GBVideoRenderer* renderer, uint16_t address) {
124 if (renderer->cache) {
125 mTileCacheWriteVRAM(renderer->cache, address);
126 }
127}
128
129static void GBVideoSoftwareRendererWriteOAM(struct GBVideoRenderer* renderer, uint16_t oam) {
130 UNUSED(renderer);
131 UNUSED(oam);
132 // Nothing to do
133}
134
135static void GBVideoSoftwareRendererDrawRange(struct GBVideoRenderer* renderer, int startX, int endX, int y, struct GBObj* obj, size_t oamMax) {
136 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
137 uint8_t* maps = &softwareRenderer->d.vram[GB_BASE_MAP];
138 if (GBRegisterLCDCIsTileMap(softwareRenderer->lcdc)) {
139 maps += GB_SIZE_MAP;
140 }
141 if (softwareRenderer->d.disableBG) {
142 memset(&softwareRenderer->row[startX], 0, endX - startX);
143 }
144 if (GBRegisterLCDCIsBgEnable(softwareRenderer->lcdc) || softwareRenderer->model >= GB_MODEL_CGB) {
145 if (GBRegisterLCDCIsWindow(softwareRenderer->lcdc) && softwareRenderer->wy <= y && endX >= softwareRenderer->wx - 7) {
146 if (softwareRenderer->wx - 7 > 0 && !softwareRenderer->d.disableBG) {
147 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, startX, softwareRenderer->wx - 7, softwareRenderer->scx, softwareRenderer->scy + y);
148 }
149
150 maps = &softwareRenderer->d.vram[GB_BASE_MAP];
151 if (GBRegisterLCDCIsWindowTileMap(softwareRenderer->lcdc)) {
152 maps += GB_SIZE_MAP;
153 }
154 if (!softwareRenderer->d.disableWIN) {
155 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, softwareRenderer->wx - 7, endX, 7 - softwareRenderer->wx, softwareRenderer->currentWy);
156 }
157 } else if (!softwareRenderer->d.disableBG) {
158 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, startX, endX, softwareRenderer->scx, softwareRenderer->scy + y);
159 }
160 } else if (!softwareRenderer->d.disableBG) {
161 memset(&softwareRenderer->row[startX], 0, endX - startX);
162 }
163
164 if (GBRegisterLCDCIsObjEnable(softwareRenderer->lcdc) && !softwareRenderer->d.disableOBJ) {
165 size_t i;
166 for (i = 0; i < oamMax; ++i) {
167 GBVideoSoftwareRendererDrawObj(softwareRenderer, &obj[i], startX, endX, y);
168 }
169 }
170 color_t* row = &softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * y];
171 int x;
172 for (x = startX; x + 7 < (endX & ~7); x += 8) {
173 row[x] = softwareRenderer->palette[softwareRenderer->row[x] & 0x7F];
174 row[x + 1] = softwareRenderer->palette[softwareRenderer->row[x + 1] & 0x7F];
175 row[x + 2] = softwareRenderer->palette[softwareRenderer->row[x + 2] & 0x7F];
176 row[x + 3] = softwareRenderer->palette[softwareRenderer->row[x + 3] & 0x7F];
177 row[x + 4] = softwareRenderer->palette[softwareRenderer->row[x + 4] & 0x7F];
178 row[x + 5] = softwareRenderer->palette[softwareRenderer->row[x + 5] & 0x7F];
179 row[x + 6] = softwareRenderer->palette[softwareRenderer->row[x + 6] & 0x7F];
180 row[x + 7] = softwareRenderer->palette[softwareRenderer->row[x + 7] & 0x7F];
181 }
182 for (; x < endX; ++x) {
183 row[x] = softwareRenderer->palette[softwareRenderer->row[x] & 0x7F];
184 }
185}
186
187static void GBVideoSoftwareRendererFinishScanline(struct GBVideoRenderer* renderer, int y) {
188 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
189 if (GBRegisterLCDCIsWindow(softwareRenderer->lcdc) && softwareRenderer->wy <= y && softwareRenderer->wx - 7 < GB_VIDEO_HORIZONTAL_PIXELS) {
190 ++softwareRenderer->currentWy;
191 }
192}
193
194static void GBVideoSoftwareRendererFinishFrame(struct GBVideoRenderer* renderer) {
195 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
196
197 if (softwareRenderer->temporaryBuffer) {
198 mappedMemoryFree(softwareRenderer->temporaryBuffer, GB_VIDEO_HORIZONTAL_PIXELS * GB_VIDEO_VERTICAL_PIXELS * 4);
199 softwareRenderer->temporaryBuffer = 0;
200 }
201 if (!GBRegisterLCDCIsEnable(softwareRenderer->lcdc)) {
202 _clearScreen(softwareRenderer);
203 }
204 softwareRenderer->currentWy = 0;
205}
206
207static void GBVideoSoftwareRendererDrawBackground(struct GBVideoSoftwareRenderer* renderer, uint8_t* maps, int startX, int endX, int sx, int sy) {
208 uint8_t* data = renderer->d.vram;
209 uint8_t* attr = &maps[GB_SIZE_VRAM_BANK0];
210 if (!GBRegisterLCDCIsTileData(renderer->lcdc)) {
211 data += 0x1000;
212 }
213 int topY = ((sy >> 3) & 0x1F) * 0x20;
214 int bottomY = sy & 7;
215 if (startX < 0) {
216 startX = 0;
217 }
218 int x;
219 if ((startX + sx) & 7) {
220 int startX2 = startX + 8 - ((startX + sx) & 7);
221 for (x = startX; x < startX2; ++x) {
222 uint8_t* localData = data;
223 int localY = bottomY;
224 int topX = ((x + sx) >> 3) & 0x1F;
225 int bottomX = 7 - ((x + sx) & 7);
226 int bgTile;
227 if (GBRegisterLCDCIsTileData(renderer->lcdc)) {
228 bgTile = maps[topX + topY];
229 } else {
230 bgTile = ((int8_t*) maps)[topX + topY];
231 }
232 int p = 0;
233 if (renderer->model >= GB_MODEL_CGB) {
234 GBObjAttributes attrs = attr[topX + topY];
235 p = GBObjAttributesGetCGBPalette(attrs) * 4;
236 if (GBObjAttributesIsPriority(attrs) && GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
237 p |= 0x80;
238 }
239 if (GBObjAttributesIsBank(attrs)) {
240 localData += GB_SIZE_VRAM_BANK0;
241 }
242 if (GBObjAttributesIsYFlip(attrs)) {
243 localY = 7 - bottomY;
244 }
245 if (GBObjAttributesIsXFlip(attrs)) {
246 bottomX = 7 - bottomX;
247 }
248 }
249 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
250 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
251 tileDataUpper >>= bottomX;
252 tileDataLower >>= bottomX;
253 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
254 }
255 startX = startX2;
256 }
257 for (x = startX; x < endX; x += 8) {
258 uint8_t* localData = data;
259 int localY = bottomY;
260 int topX = ((x + sx) >> 3) & 0x1F;
261 int bgTile;
262 if (GBRegisterLCDCIsTileData(renderer->lcdc)) {
263 bgTile = maps[topX + topY];
264 } else {
265 bgTile = ((int8_t*) maps)[topX + topY];
266 }
267 int p = 0;
268 if (renderer->model >= GB_MODEL_CGB) {
269 GBObjAttributes attrs = attr[topX + topY];
270 p = GBObjAttributesGetCGBPalette(attrs) * 4;
271 if (GBObjAttributesIsPriority(attrs) && GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
272 p |= 0x80;
273 }
274 if (GBObjAttributesIsBank(attrs)) {
275 localData += GB_SIZE_VRAM_BANK0;
276 }
277 if (GBObjAttributesIsYFlip(attrs)) {
278 localY = 7 - bottomY;
279 }
280 if (GBObjAttributesIsXFlip(attrs)) {
281 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
282 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
283 renderer->row[x + 0] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
284 renderer->row[x + 1] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
285 renderer->row[x + 2] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
286 renderer->row[x + 3] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
287 renderer->row[x + 4] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
288 renderer->row[x + 5] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
289 renderer->row[x + 6] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
290 renderer->row[x + 7] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
291 continue;
292 }
293 }
294 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
295 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
296 renderer->row[x + 7] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
297 renderer->row[x + 6] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
298 renderer->row[x + 5] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
299 renderer->row[x + 4] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
300 renderer->row[x + 3] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
301 renderer->row[x + 2] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
302 renderer->row[x + 1] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
303 renderer->row[x + 0] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
304 }
305}
306
307static void GBVideoSoftwareRendererDrawObj(struct GBVideoSoftwareRenderer* renderer, struct GBObj* obj, int startX, int endX, int y) {
308 int ix = obj->x - 8;
309 if (endX < ix || startX >= ix + 8) {
310 return;
311 }
312 if (obj->x < endX) {
313 endX = obj->x;
314 }
315 if (obj->x - 8 > startX) {
316 startX = obj->x - 8;
317 }
318 if (startX < 0) {
319 startX = 0;
320 }
321 uint8_t* data = renderer->d.vram;
322 int tileOffset = 0;
323 int bottomY;
324 if (GBObjAttributesIsYFlip(obj->attr)) {
325 bottomY = 7 - ((y - obj->y - 16) & 7);
326 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && y - obj->y < -8) {
327 ++tileOffset;
328 }
329 } else {
330 bottomY = (y - obj->y - 16) & 7;
331 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && y - obj->y >= -8) {
332 ++tileOffset;
333 }
334 }
335 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && obj->tile & 1) {
336 --tileOffset;
337 }
338 uint8_t mask = GBObjAttributesIsPriority(obj->attr) ? 0x63 : 0x60;
339 uint8_t mask2 = GBObjAttributesIsPriority(obj->attr) ? 0 : 0x83;
340 int p;
341 if (renderer->model >= GB_MODEL_CGB) {
342 p = (GBObjAttributesGetCGBPalette(obj->attr) + 8) * 4;
343 if (GBObjAttributesIsBank(obj->attr)) {
344 data += GB_SIZE_VRAM_BANK0;
345 }
346 if (!GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
347 mask = 0x60;
348 mask2 = 0x83;
349 }
350 } else {
351 p = (GBObjAttributesGetPalette(obj->attr) + 8) * 4;
352 }
353 int bottomX;
354 int x = startX;
355 if ((x - obj->x) & 7) {
356 for (; x < endX; ++x) {
357 if (GBObjAttributesIsXFlip(obj->attr)) {
358 bottomX = (x - obj->x) & 7;
359 } else {
360 bottomX = 7 - ((x - obj->x) & 7);
361 }
362 int objTile = obj->tile + tileOffset;
363 uint8_t tileDataLower = data[(objTile * 8 + bottomY) * 2];
364 uint8_t tileDataUpper = data[(objTile * 8 + bottomY) * 2 + 1];
365 tileDataUpper >>= bottomX;
366 tileDataLower >>= bottomX;
367 color_t current = renderer->row[x];
368 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
369 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
370 }
371 }
372 } else if (GBObjAttributesIsXFlip(obj->attr)) {
373 int objTile = obj->tile + tileOffset;
374 uint8_t tileDataLower = data[(objTile * 8 + bottomY) * 2];
375 uint8_t tileDataUpper = data[(objTile * 8 + bottomY) * 2 + 1];
376 color_t current;
377 current = renderer->row[x];
378 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
379 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
380 }
381 current = renderer->row[x + 1];
382 if (((tileDataUpper | tileDataLower) & 2) && !(current & mask) && (current & mask2) <= 0x80) {
383 renderer->row[x + 1] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
384 }
385 current = renderer->row[x + 2];
386 if (((tileDataUpper | tileDataLower) & 4) && !(current & mask) && (current & mask2) <= 0x80) {
387 renderer->row[x + 2] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
388 }
389 current = renderer->row[x + 3];
390 if (((tileDataUpper | tileDataLower) & 8) && !(current & mask) && (current & mask2) <= 0x80) {
391 renderer->row[x + 3] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
392 }
393 current = renderer->row[x + 4];
394 if (((tileDataUpper | tileDataLower) & 16) && !(current & mask) && (current & mask2) <= 0x80) {
395 renderer->row[x + 4] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
396 }
397 current = renderer->row[x + 5];
398 if (((tileDataUpper | tileDataLower) & 32) && !(current & mask) && (current & mask2) <= 0x80) {
399 renderer->row[x + 5] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
400 }
401 current = renderer->row[x + 6];
402 if (((tileDataUpper | tileDataLower) & 64) && !(current & mask) && (current & mask2) <= 0x80) {
403 renderer->row[x + 6] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
404 }
405 current = renderer->row[x + 7];
406 if (((tileDataUpper | tileDataLower) & 128) && !(current & mask) && (current & mask2) <= 0x80) {
407 renderer->row[x + 7] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
408 }
409 } else {
410 int objTile = obj->tile + tileOffset;
411 uint8_t tileDataLower = data[(objTile * 8 + bottomY) * 2];
412 uint8_t tileDataUpper = data[(objTile * 8 + bottomY) * 2 + 1];
413 color_t current;
414 current = renderer->row[x + 7];
415 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
416 renderer->row[x + 7] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
417 }
418 current = renderer->row[x + 6];
419 if (((tileDataUpper | tileDataLower) & 2) && !(current & mask) && (current & mask2) <= 0x80) {
420 renderer->row[x + 6] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
421 }
422 current = renderer->row[x + 5];
423 if (((tileDataUpper | tileDataLower) & 4) && !(current & mask) && (current & mask2) <= 0x80) {
424 renderer->row[x + 5] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
425 }
426 current = renderer->row[x + 4];
427 if (((tileDataUpper | tileDataLower) & 8) && !(current & mask) && (current & mask2) <= 0x80) {
428 renderer->row[x + 4] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
429 }
430 current = renderer->row[x + 3];
431 if (((tileDataUpper | tileDataLower) & 16) && !(current & mask) && (current & mask2) <= 0x80) {
432 renderer->row[x + 3] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
433 }
434 current = renderer->row[x + 2];
435 if (((tileDataUpper | tileDataLower) & 32) && !(current & mask) && (current & mask2) <= 0x80) {
436 renderer->row[x + 2] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
437 }
438 current = renderer->row[x + 1];
439 if (((tileDataUpper | tileDataLower) & 64) && !(current & mask) && (current & mask2) <= 0x80) {
440 renderer->row[x + 1] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
441 }
442 current = renderer->row[x];
443 if (((tileDataUpper | tileDataLower) & 128) && !(current & mask) && (current & mask2) <= 0x80) {
444 renderer->row[x] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
445 }
446 }
447}
448
449static void GBVideoSoftwareRendererGetPixels(struct GBVideoRenderer* renderer, size_t* stride, const void** pixels) {
450 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
451 // TODO: Share with GBAVideoSoftwareRendererGetPixels
452#ifdef COLOR_16_BIT
453 *stride = GB_VIDEO_HORIZONTAL_PIXELS;
454 if (!softwareRenderer->temporaryBuffer) {
455 softwareRenderer->temporaryBuffer = anonymousMemoryMap(GB_VIDEO_HORIZONTAL_PIXELS * GB_VIDEO_VERTICAL_PIXELS * 4);
456 }
457 *pixels = softwareRenderer->temporaryBuffer;
458 unsigned y, x;
459 for (y = 0; y < GB_VIDEO_VERTICAL_PIXELS; ++y) {
460 for (x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS; ++x) {
461 color_t inColor = softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * y + x];
462 uint32_t outColor;
463#ifdef COLOR_5_6_5
464 outColor = (inColor & 0x1F) << 19;
465 outColor |= (inColor & 0x7C0) << 5;
466 outColor |= (inColor & 0xF800) >> 8;
467#else
468 outColor = (inColor & 0x1F) << 3;
469 outColor |= (inColor & 0x3E0) << 6;
470 outColor |= (inColor & 0x7C00) << 9;
471#endif
472 softwareRenderer->temporaryBuffer[GB_VIDEO_HORIZONTAL_PIXELS * y + x] = outColor;
473 }
474 }
475#else
476 *stride = softwareRenderer->outputBufferStride;
477 *pixels = softwareRenderer->outputBuffer;
478#endif
479}
480
481
482static void GBVideoSoftwareRendererPutPixels(struct GBVideoRenderer* renderer, size_t stride, const void* pixels) {
483 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
484 // TODO: Share with GBAVideoSoftwareRendererGetPixels
485
486 const color_t* colorPixels = pixels;
487 unsigned i;
488 for (i = 0; i < GB_VIDEO_VERTICAL_PIXELS; ++i) {
489 memmove(&softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * i], &colorPixels[stride * i], GB_VIDEO_HORIZONTAL_PIXELS * BYTES_PER_PIXEL);
490 }
491}