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 GBVideoSoftwareRendererDrawRange(struct GBVideoRenderer* renderer, int startX, int endX, int y, struct GBObj* obj, size_t oamMax);
18static void GBVideoSoftwareRendererFinishScanline(struct GBVideoRenderer* renderer, int y);
19static void GBVideoSoftwareRendererFinishFrame(struct GBVideoRenderer* renderer);
20static void GBVideoSoftwareRendererGetPixels(struct GBVideoRenderer* renderer, size_t* stride, const void** pixels);
21static void GBVideoSoftwareRendererPutPixels(struct GBVideoRenderer* renderer, size_t stride, const void* pixels);
22
23static void GBVideoSoftwareRendererDrawBackground(struct GBVideoSoftwareRenderer* renderer, uint8_t* maps, int startX, int endX, int sx, int sy);
24static void GBVideoSoftwareRendererDrawObj(struct GBVideoSoftwareRenderer* renderer, struct GBObj* obj, int startX, int endX, int y);
25
26static void _clearScreen(struct GBVideoSoftwareRenderer* renderer) {
27 int y;
28 for (y = 0; y < GB_VIDEO_VERTICAL_PIXELS; ++y) {
29 color_t* row = &renderer->outputBuffer[renderer->outputBufferStride * y];
30 int x;
31 for (x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS; x += 4) {
32 row[x + 0] = renderer->palette[0];
33 row[x + 1] = renderer->palette[0];
34 row[x + 2] = renderer->palette[0];
35 row[x + 3] = renderer->palette[0];
36 }
37 }
38}
39
40void GBVideoSoftwareRendererCreate(struct GBVideoSoftwareRenderer* renderer) {
41 renderer->d.init = GBVideoSoftwareRendererInit;
42 renderer->d.deinit = GBVideoSoftwareRendererDeinit;
43 renderer->d.writeVideoRegister = GBVideoSoftwareRendererWriteVideoRegister;
44 renderer->d.writePalette = GBVideoSoftwareRendererWritePalette;
45 renderer->d.writeVRAM = GBVideoSoftwareRendererWriteVRAM;
46 renderer->d.drawRange = GBVideoSoftwareRendererDrawRange;
47 renderer->d.finishScanline = GBVideoSoftwareRendererFinishScanline;
48 renderer->d.finishFrame = GBVideoSoftwareRendererFinishFrame;
49 renderer->d.getPixels = GBVideoSoftwareRendererGetPixels;
50 renderer->d.putPixels = GBVideoSoftwareRendererPutPixels;
51
52 renderer->temporaryBuffer = 0;
53}
54
55static void GBVideoSoftwareRendererInit(struct GBVideoRenderer* renderer, enum GBModel model) {
56 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
57 softwareRenderer->lcdc = 0;
58 softwareRenderer->scy = 0;
59 softwareRenderer->scx = 0;
60 softwareRenderer->wy = 0;
61 softwareRenderer->currentWy = 0;
62 softwareRenderer->wx = 0;
63 softwareRenderer->model = model;
64
65 _clearScreen(softwareRenderer);
66}
67
68static void GBVideoSoftwareRendererDeinit(struct GBVideoRenderer* renderer) {
69 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
70 UNUSED(softwareRenderer);
71}
72
73static uint8_t GBVideoSoftwareRendererWriteVideoRegister(struct GBVideoRenderer* renderer, uint16_t address, uint8_t value) {
74 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
75 switch (address) {
76 case REG_LCDC:
77 softwareRenderer->lcdc = value;
78 break;
79 case REG_SCY:
80 softwareRenderer->scy = value;
81 break;
82 case REG_SCX:
83 softwareRenderer->scx = value;
84 break;
85 case REG_WY:
86 softwareRenderer->wy = value;
87 break;
88 case REG_WX:
89 softwareRenderer->wx = value;
90 break;
91 }
92 return value;
93}
94
95static void GBVideoSoftwareRendererWritePalette(struct GBVideoRenderer* renderer, int index, uint16_t value) {
96 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
97#ifdef COLOR_16_BIT
98#ifdef COLOR_5_6_5
99 color_t color = 0;
100 color |= (value & 0x001F) << 11;
101 color |= (value & 0x03E0) << 1;
102 color |= (value & 0x7C00) >> 10;
103#else
104 color_t color = value;
105#endif
106#else
107 color_t color = 0;
108 color |= (value << 3) & 0xF8;
109 color |= (value << 6) & 0xF800;
110 color |= (value << 9) & 0xF80000;
111 color |= (color >> 5) & 0x070707;
112#endif
113 softwareRenderer->palette[index] = color;
114 if (renderer->cache) {
115 mTileCacheWritePalette(renderer->cache, index << 1);
116 }
117}
118
119static void GBVideoSoftwareRendererWriteVRAM(struct GBVideoRenderer* renderer, uint16_t address) {
120 if (renderer->cache) {
121 mTileCacheWriteVRAM(renderer->cache, address);
122 }
123}
124
125static void GBVideoSoftwareRendererDrawRange(struct GBVideoRenderer* renderer, int startX, int endX, int y, struct GBObj* obj, size_t oamMax) {
126 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
127 uint8_t* maps = &softwareRenderer->d.vram[GB_BASE_MAP];
128 if (GBRegisterLCDCIsTileMap(softwareRenderer->lcdc)) {
129 maps += GB_SIZE_MAP;
130 }
131 if (GBRegisterLCDCIsBgEnable(softwareRenderer->lcdc) || softwareRenderer->model >= GB_MODEL_CGB) {
132 if (GBRegisterLCDCIsWindow(softwareRenderer->lcdc) && softwareRenderer->wy <= y && endX >= softwareRenderer->wx - 7) {
133 if (softwareRenderer->wx - 7 > 0) {
134 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, startX, softwareRenderer->wx - 7, softwareRenderer->scx, softwareRenderer->scy + y);
135 }
136
137 maps = &softwareRenderer->d.vram[GB_BASE_MAP];
138 if (GBRegisterLCDCIsWindowTileMap(softwareRenderer->lcdc)) {
139 maps += GB_SIZE_MAP;
140 }
141 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, softwareRenderer->wx - 7, endX, 7 - softwareRenderer->wx, softwareRenderer->currentWy);
142 } else {
143 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, startX, endX, softwareRenderer->scx, softwareRenderer->scy + y);
144 }
145 } else {
146 memset(&softwareRenderer->row[startX], 0, endX - startX);
147 }
148
149 if (GBRegisterLCDCIsObjEnable(softwareRenderer->lcdc)) {
150 size_t i;
151 for (i = 0; i < oamMax; ++i) {
152 GBVideoSoftwareRendererDrawObj(softwareRenderer, &obj[i], startX, endX, y);
153 }
154 }
155 color_t* row = &softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * y];
156 int x;
157 for (x = startX; x + 7 < (endX & ~7); x += 8) {
158 row[x] = softwareRenderer->palette[softwareRenderer->row[x] & 0x7F];
159 row[x + 1] = softwareRenderer->palette[softwareRenderer->row[x + 1] & 0x7F];
160 row[x + 2] = softwareRenderer->palette[softwareRenderer->row[x + 2] & 0x7F];
161 row[x + 3] = softwareRenderer->palette[softwareRenderer->row[x + 3] & 0x7F];
162 row[x + 4] = softwareRenderer->palette[softwareRenderer->row[x + 4] & 0x7F];
163 row[x + 5] = softwareRenderer->palette[softwareRenderer->row[x + 5] & 0x7F];
164 row[x + 6] = softwareRenderer->palette[softwareRenderer->row[x + 6] & 0x7F];
165 row[x + 7] = softwareRenderer->palette[softwareRenderer->row[x + 7] & 0x7F];
166 }
167 for (; x < endX; ++x) {
168 row[x] = softwareRenderer->palette[softwareRenderer->row[x] & 0x7F];
169 }
170}
171
172static void GBVideoSoftwareRendererFinishScanline(struct GBVideoRenderer* renderer, int y) {
173 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
174 if (GBRegisterLCDCIsWindow(softwareRenderer->lcdc) && softwareRenderer->wy <= y && softwareRenderer->wx - 7 < GB_VIDEO_HORIZONTAL_PIXELS) {
175 ++softwareRenderer->currentWy;
176 }
177}
178
179static void GBVideoSoftwareRendererFinishFrame(struct GBVideoRenderer* renderer) {
180 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
181
182 if (softwareRenderer->temporaryBuffer) {
183 mappedMemoryFree(softwareRenderer->temporaryBuffer, GB_VIDEO_HORIZONTAL_PIXELS * GB_VIDEO_VERTICAL_PIXELS * 4);
184 softwareRenderer->temporaryBuffer = 0;
185 }
186 if (!GBRegisterLCDCIsEnable(softwareRenderer->lcdc)) {
187 _clearScreen(softwareRenderer);
188 }
189 softwareRenderer->currentWy = 0;
190}
191
192static void GBVideoSoftwareRendererDrawBackground(struct GBVideoSoftwareRenderer* renderer, uint8_t* maps, int startX, int endX, int sx, int sy) {
193 uint8_t* data = renderer->d.vram;
194 uint8_t* attr = &maps[GB_SIZE_VRAM_BANK0];
195 if (!GBRegisterLCDCIsTileData(renderer->lcdc)) {
196 data += 0x1000;
197 }
198 int topY = ((sy >> 3) & 0x1F) * 0x20;
199 int bottomY = sy & 7;
200 if (startX < 0) {
201 startX = 0;
202 }
203 int x;
204 if ((startX + sx) & 7) {
205 int startX2 = startX + 8 - ((startX + sx) & 7);
206 for (x = startX; x < startX2; ++x) {
207 uint8_t* localData = data;
208 int localY = bottomY;
209 int topX = ((x + sx) >> 3) & 0x1F;
210 int bottomX = 7 - ((x + sx) & 7);
211 int bgTile;
212 if (GBRegisterLCDCIsTileData(renderer->lcdc)) {
213 bgTile = maps[topX + topY];
214 } else {
215 bgTile = ((int8_t*) maps)[topX + topY];
216 }
217 int p = 0;
218 if (renderer->model >= GB_MODEL_CGB) {
219 GBObjAttributes attrs = attr[topX + topY];
220 p = GBObjAttributesGetCGBPalette(attrs) * 4;
221 if (GBObjAttributesIsPriority(attrs) && GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
222 p |= 0x80;
223 }
224 if (GBObjAttributesIsBank(attrs)) {
225 localData += GB_SIZE_VRAM_BANK0;
226 }
227 if (GBObjAttributesIsYFlip(attrs)) {
228 localY = 7 - bottomY;
229 }
230 if (GBObjAttributesIsXFlip(attrs)) {
231 bottomX = 7 - bottomX;
232 }
233 }
234 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
235 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
236 tileDataUpper >>= bottomX;
237 tileDataLower >>= bottomX;
238 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
239 }
240 startX = startX2;
241 }
242 for (x = startX; x < endX; x += 8) {
243 uint8_t* localData = data;
244 int localY = bottomY;
245 int topX = ((x + sx) >> 3) & 0x1F;
246 int bgTile;
247 if (GBRegisterLCDCIsTileData(renderer->lcdc)) {
248 bgTile = maps[topX + topY];
249 } else {
250 bgTile = ((int8_t*) maps)[topX + topY];
251 }
252 int p = 0;
253 if (renderer->model >= GB_MODEL_CGB) {
254 GBObjAttributes attrs = attr[topX + topY];
255 p = GBObjAttributesGetCGBPalette(attrs) * 4;
256 if (GBObjAttributesIsPriority(attrs) && GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
257 p |= 0x80;
258 }
259 if (GBObjAttributesIsBank(attrs)) {
260 localData += GB_SIZE_VRAM_BANK0;
261 }
262 if (GBObjAttributesIsYFlip(attrs)) {
263 localY = 7 - bottomY;
264 }
265 if (GBObjAttributesIsXFlip(attrs)) {
266 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
267 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
268 renderer->row[x + 0] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
269 renderer->row[x + 1] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
270 renderer->row[x + 2] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
271 renderer->row[x + 3] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
272 renderer->row[x + 4] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
273 renderer->row[x + 5] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
274 renderer->row[x + 6] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
275 renderer->row[x + 7] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
276 continue;
277 }
278 }
279 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
280 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
281 renderer->row[x + 7] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
282 renderer->row[x + 6] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
283 renderer->row[x + 5] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
284 renderer->row[x + 4] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
285 renderer->row[x + 3] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
286 renderer->row[x + 2] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
287 renderer->row[x + 1] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
288 renderer->row[x + 0] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
289 }
290}
291
292static void GBVideoSoftwareRendererDrawObj(struct GBVideoSoftwareRenderer* renderer, struct GBObj* obj, int startX, int endX, int y) {
293 int ix = obj->x - 8;
294 if (endX < ix || startX >= ix + 8) {
295 return;
296 }
297 if (obj->x < endX) {
298 endX = obj->x;
299 }
300 if (obj->x - 8 > startX) {
301 startX = obj->x - 8;
302 }
303 if (startX < 0) {
304 startX = 0;
305 }
306 uint8_t* data = renderer->d.vram;
307 int tileOffset = 0;
308 int bottomY;
309 if (GBObjAttributesIsYFlip(obj->attr)) {
310 bottomY = 7 - ((y - obj->y - 16) & 7);
311 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && y - obj->y < -8) {
312 ++tileOffset;
313 }
314 } else {
315 bottomY = (y - obj->y - 16) & 7;
316 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && y - obj->y >= -8) {
317 ++tileOffset;
318 }
319 }
320 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && obj->tile & 1) {
321 --tileOffset;
322 }
323 uint8_t mask = GBObjAttributesIsPriority(obj->attr) ? 0x63 : 0x60;
324 uint8_t mask2 = GBObjAttributesIsPriority(obj->attr) ? 0 : 0x83;
325 int p;
326 if (renderer->model >= GB_MODEL_CGB) {
327 p = (GBObjAttributesGetCGBPalette(obj->attr) + 8) * 4;
328 if (GBObjAttributesIsBank(obj->attr)) {
329 data += GB_SIZE_VRAM_BANK0;
330 }
331 if (!GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
332 mask = 0x60;
333 mask2 = 0x83;
334 }
335 } else {
336 p = (GBObjAttributesGetPalette(obj->attr) + 8) * 4;
337 }
338 int bottomX;
339 int x = startX;
340 if ((x - obj->x) & 7) {
341 for (; x < endX; ++x) {
342 if (GBObjAttributesIsXFlip(obj->attr)) {
343 bottomX = (x - obj->x) & 7;
344 } else {
345 bottomX = 7 - ((x - obj->x) & 7);
346 }
347 int objTile = obj->tile + tileOffset;
348 uint8_t tileDataLower = data[(objTile * 8 + bottomY) * 2];
349 uint8_t tileDataUpper = data[(objTile * 8 + bottomY) * 2 + 1];
350 tileDataUpper >>= bottomX;
351 tileDataLower >>= bottomX;
352 color_t current = renderer->row[x];
353 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
354 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
355 }
356 }
357 } else if (GBObjAttributesIsXFlip(obj->attr)) {
358 int objTile = obj->tile + tileOffset;
359 uint8_t tileDataLower = data[(objTile * 8 + bottomY) * 2];
360 uint8_t tileDataUpper = data[(objTile * 8 + bottomY) * 2 + 1];
361 color_t current;
362 current = renderer->row[x];
363 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
364 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
365 }
366 current = renderer->row[x + 1];
367 if (((tileDataUpper | tileDataLower) & 2) && !(current & mask) && (current & mask2) <= 0x80) {
368 renderer->row[x + 1] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
369 }
370 current = renderer->row[x + 2];
371 if (((tileDataUpper | tileDataLower) & 4) && !(current & mask) && (current & mask2) <= 0x80) {
372 renderer->row[x + 2] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
373 }
374 current = renderer->row[x + 3];
375 if (((tileDataUpper | tileDataLower) & 8) && !(current & mask) && (current & mask2) <= 0x80) {
376 renderer->row[x + 3] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
377 }
378 current = renderer->row[x + 4];
379 if (((tileDataUpper | tileDataLower) & 16) && !(current & mask) && (current & mask2) <= 0x80) {
380 renderer->row[x + 4] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
381 }
382 current = renderer->row[x + 5];
383 if (((tileDataUpper | tileDataLower) & 32) && !(current & mask) && (current & mask2) <= 0x80) {
384 renderer->row[x + 5] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
385 }
386 current = renderer->row[x + 6];
387 if (((tileDataUpper | tileDataLower) & 64) && !(current & mask) && (current & mask2) <= 0x80) {
388 renderer->row[x + 6] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
389 }
390 current = renderer->row[x + 7];
391 if (((tileDataUpper | tileDataLower) & 128) && !(current & mask) && (current & mask2) <= 0x80) {
392 renderer->row[x + 7] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
393 }
394 } else {
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 color_t current;
399 current = renderer->row[x + 7];
400 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
401 renderer->row[x + 7] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
402 }
403 current = renderer->row[x + 6];
404 if (((tileDataUpper | tileDataLower) & 2) && !(current & mask) && (current & mask2) <= 0x80) {
405 renderer->row[x + 6] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
406 }
407 current = renderer->row[x + 5];
408 if (((tileDataUpper | tileDataLower) & 4) && !(current & mask) && (current & mask2) <= 0x80) {
409 renderer->row[x + 5] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
410 }
411 current = renderer->row[x + 4];
412 if (((tileDataUpper | tileDataLower) & 8) && !(current & mask) && (current & mask2) <= 0x80) {
413 renderer->row[x + 4] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
414 }
415 current = renderer->row[x + 3];
416 if (((tileDataUpper | tileDataLower) & 16) && !(current & mask) && (current & mask2) <= 0x80) {
417 renderer->row[x + 3] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
418 }
419 current = renderer->row[x + 2];
420 if (((tileDataUpper | tileDataLower) & 32) && !(current & mask) && (current & mask2) <= 0x80) {
421 renderer->row[x + 2] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
422 }
423 current = renderer->row[x + 1];
424 if (((tileDataUpper | tileDataLower) & 64) && !(current & mask) && (current & mask2) <= 0x80) {
425 renderer->row[x + 1] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
426 }
427 current = renderer->row[x];
428 if (((tileDataUpper | tileDataLower) & 128) && !(current & mask) && (current & mask2) <= 0x80) {
429 renderer->row[x] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
430 }
431 }
432}
433
434static void GBVideoSoftwareRendererGetPixels(struct GBVideoRenderer* renderer, size_t* stride, const void** pixels) {
435 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
436 // TODO: Share with GBAVideoSoftwareRendererGetPixels
437#ifdef COLOR_16_BIT
438 *stride = GB_VIDEO_HORIZONTAL_PIXELS;
439 if (!softwareRenderer->temporaryBuffer) {
440 softwareRenderer->temporaryBuffer = anonymousMemoryMap(GB_VIDEO_HORIZONTAL_PIXELS * GB_VIDEO_VERTICAL_PIXELS * 4);
441 }
442 *pixels = softwareRenderer->temporaryBuffer;
443 unsigned y, x;
444 for (y = 0; y < GB_VIDEO_VERTICAL_PIXELS; ++y) {
445 for (x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS; ++x) {
446 color_t inColor = softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * y + x];
447 uint32_t outColor;
448#ifdef COLOR_5_6_5
449 outColor = (inColor & 0x1F) << 19;
450 outColor |= (inColor & 0x7C0) << 5;
451 outColor |= (inColor & 0xF800) >> 8;
452#else
453 outColor = (inColor & 0x1F) << 3;
454 outColor |= (inColor & 0x3E0) << 6;
455 outColor |= (inColor & 0x7C00) << 9;
456#endif
457 softwareRenderer->temporaryBuffer[GB_VIDEO_HORIZONTAL_PIXELS * y + x] = outColor;
458 }
459 }
460#else
461 *stride = softwareRenderer->outputBufferStride;
462 *pixels = softwareRenderer->outputBuffer;
463#endif
464}
465
466
467static void GBVideoSoftwareRendererPutPixels(struct GBVideoRenderer* renderer, size_t stride, const void* pixels) {
468 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
469 // TODO: Share with GBAVideoSoftwareRendererGetPixels
470
471 const color_t* colorPixels = pixels;
472 unsigned i;
473 for (i = 0; i < GB_VIDEO_VERTICAL_PIXELS; ++i) {
474 memmove(&softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * i], &colorPixels[stride * i], GB_VIDEO_HORIZONTAL_PIXELS * BYTES_PER_PIXEL);
475 }
476}