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 // TODO: Dynamic from dmgPalette
28#ifdef COLOR_16_BIT
29#ifdef COLOR_5_6_5
30 color_t palette0 = 0xFFDF;
31#else
32 color_t palette0 = 0x7FFF;
33#endif
34#else
35 color_t palette0 = 0xFFFFFF;
36#endif
37
38 int y;
39 for (y = 0; y < GB_VIDEO_VERTICAL_PIXELS; ++y) {
40 color_t* row = &renderer->outputBuffer[renderer->outputBufferStride * y];
41 int x;
42 for (x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS; x += 4) {
43 row[x + 0] = palette0;
44 row[x + 1] = palette0;
45 row[x + 2] = palette0;
46 row[x + 3] = palette0;
47 }
48 }
49}
50
51void GBVideoSoftwareRendererCreate(struct GBVideoSoftwareRenderer* renderer) {
52 renderer->d.init = GBVideoSoftwareRendererInit;
53 renderer->d.deinit = GBVideoSoftwareRendererDeinit;
54 renderer->d.writeVideoRegister = GBVideoSoftwareRendererWriteVideoRegister;
55 renderer->d.writePalette = GBVideoSoftwareRendererWritePalette;
56 renderer->d.writeVRAM = GBVideoSoftwareRendererWriteVRAM;
57 renderer->d.drawRange = GBVideoSoftwareRendererDrawRange;
58 renderer->d.finishScanline = GBVideoSoftwareRendererFinishScanline;
59 renderer->d.finishFrame = GBVideoSoftwareRendererFinishFrame;
60 renderer->d.getPixels = GBVideoSoftwareRendererGetPixels;
61 renderer->d.putPixels = GBVideoSoftwareRendererPutPixels;
62
63 renderer->temporaryBuffer = 0;
64}
65
66static void GBVideoSoftwareRendererInit(struct GBVideoRenderer* renderer, enum GBModel model) {
67 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
68 softwareRenderer->lcdc = 0;
69 softwareRenderer->scy = 0;
70 softwareRenderer->scx = 0;
71 softwareRenderer->wy = 0;
72 softwareRenderer->currentWy = 0;
73 softwareRenderer->wx = 0;
74 softwareRenderer->model = model;
75
76 _clearScreen(softwareRenderer);
77}
78
79static void GBVideoSoftwareRendererDeinit(struct GBVideoRenderer* renderer) {
80 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
81 UNUSED(softwareRenderer);
82}
83
84static uint8_t GBVideoSoftwareRendererWriteVideoRegister(struct GBVideoRenderer* renderer, uint16_t address, uint8_t value) {
85 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
86 switch (address) {
87 case REG_LCDC:
88 if (GBRegisterLCDCIsEnable(softwareRenderer->lcdc) && !GBRegisterLCDCIsEnable(value)) {
89 _clearScreen(softwareRenderer);
90 }
91 softwareRenderer->lcdc = value;
92 break;
93 case REG_SCY:
94 softwareRenderer->scy = value;
95 break;
96 case REG_SCX:
97 softwareRenderer->scx = value;
98 break;
99 case REG_WY:
100 softwareRenderer->wy = value;
101 break;
102 case REG_WX:
103 softwareRenderer->wx = value;
104 break;
105 }
106 return value;
107}
108
109static void GBVideoSoftwareRendererWritePalette(struct GBVideoRenderer* renderer, int index, uint16_t value) {
110 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
111#ifdef COLOR_16_BIT
112#ifdef COLOR_5_6_5
113 color_t color = 0;
114 color |= (value & 0x001F) << 11;
115 color |= (value & 0x03E0) << 1;
116 color |= (value & 0x7C00) >> 10;
117#else
118 color_t color = value;
119#endif
120#else
121 color_t color = 0;
122 color |= (value << 3) & 0xF8;
123 color |= (value << 6) & 0xF800;
124 color |= (value << 9) & 0xF80000;
125 color |= (color >> 5) & 0x070707;
126#endif
127 softwareRenderer->palette[index] = color;
128 if (renderer->cache) {
129 mTileCacheWritePalette(renderer->cache, index << 1);
130 }
131}
132
133static void GBVideoSoftwareRendererWriteVRAM(struct GBVideoRenderer* renderer, uint16_t address) {
134 if (renderer->cache) {
135 mTileCacheWriteVRAM(renderer->cache, address);
136 }
137}
138
139static void GBVideoSoftwareRendererDrawRange(struct GBVideoRenderer* renderer, int startX, int endX, int y, struct GBObj* obj, size_t oamMax) {
140 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
141 uint8_t* maps = &softwareRenderer->d.vram[GB_BASE_MAP];
142 if (GBRegisterLCDCIsTileMap(softwareRenderer->lcdc)) {
143 maps += GB_SIZE_MAP;
144 }
145 if (GBRegisterLCDCIsBgEnable(softwareRenderer->lcdc) || softwareRenderer->model >= GB_MODEL_CGB) {
146 if (GBRegisterLCDCIsWindow(softwareRenderer->lcdc) && softwareRenderer->wy <= y && endX >= softwareRenderer->wx - 7) {
147 if (softwareRenderer->wx - 7 > 0) {
148 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, startX, softwareRenderer->wx - 7, softwareRenderer->scx, softwareRenderer->scy + y);
149 }
150
151 maps = &softwareRenderer->d.vram[GB_BASE_MAP];
152 if (GBRegisterLCDCIsWindowTileMap(softwareRenderer->lcdc)) {
153 maps += GB_SIZE_MAP;
154 }
155 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, softwareRenderer->wx - 7, endX, 7 - softwareRenderer->wx, softwareRenderer->currentWy);
156 } else {
157 GBVideoSoftwareRendererDrawBackground(softwareRenderer, maps, startX, endX, softwareRenderer->scx, softwareRenderer->scy + y);
158 }
159 } else {
160 memset(&softwareRenderer->row[startX], 0, endX - startX);
161 }
162
163 if (GBRegisterLCDCIsObjEnable(softwareRenderer->lcdc)) {
164 size_t i;
165 for (i = 0; i < oamMax; ++i) {
166 GBVideoSoftwareRendererDrawObj(softwareRenderer, &obj[i], startX, endX, y);
167 }
168 }
169 color_t* row = &softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * y];
170 int x;
171 for (x = startX; x + 7 < (endX & ~7); x += 8) {
172 row[x] = softwareRenderer->palette[softwareRenderer->row[x] & 0x7F];
173 row[x + 1] = softwareRenderer->palette[softwareRenderer->row[x + 1] & 0x7F];
174 row[x + 2] = softwareRenderer->palette[softwareRenderer->row[x + 2] & 0x7F];
175 row[x + 3] = softwareRenderer->palette[softwareRenderer->row[x + 3] & 0x7F];
176 row[x + 4] = softwareRenderer->palette[softwareRenderer->row[x + 4] & 0x7F];
177 row[x + 5] = softwareRenderer->palette[softwareRenderer->row[x + 5] & 0x7F];
178 row[x + 6] = softwareRenderer->palette[softwareRenderer->row[x + 6] & 0x7F];
179 row[x + 7] = softwareRenderer->palette[softwareRenderer->row[x + 7] & 0x7F];
180 }
181 for (; x < endX; ++x) {
182 row[x] = softwareRenderer->palette[softwareRenderer->row[x] & 0x7F];
183 }
184}
185
186static void GBVideoSoftwareRendererFinishScanline(struct GBVideoRenderer* renderer, int y) {
187 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
188 if (GBRegisterLCDCIsWindow(softwareRenderer->lcdc) && softwareRenderer->wy <= y && softwareRenderer->wx - 7 < GB_VIDEO_HORIZONTAL_PIXELS) {
189 ++softwareRenderer->currentWy;
190 }
191}
192
193static void GBVideoSoftwareRendererFinishFrame(struct GBVideoRenderer* renderer) {
194 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
195
196 if (softwareRenderer->temporaryBuffer) {
197 mappedMemoryFree(softwareRenderer->temporaryBuffer, GB_VIDEO_HORIZONTAL_PIXELS * GB_VIDEO_VERTICAL_PIXELS * 4);
198 softwareRenderer->temporaryBuffer = 0;
199 }
200 softwareRenderer->currentWy = 0;
201}
202
203static void GBVideoSoftwareRendererDrawBackground(struct GBVideoSoftwareRenderer* renderer, uint8_t* maps, int startX, int endX, int sx, int sy) {
204 uint8_t* data = renderer->d.vram;
205 uint8_t* attr = &maps[GB_SIZE_VRAM_BANK0];
206 if (!GBRegisterLCDCIsTileData(renderer->lcdc)) {
207 data += 0x1000;
208 }
209 int topY = ((sy >> 3) & 0x1F) * 0x20;
210 int bottomY = sy & 7;
211 if (startX < 0) {
212 startX = 0;
213 }
214 int x;
215 if ((startX + sx) & 7) {
216 int startX2 = startX + 8 - ((startX + sx) & 7);
217 for (x = startX; x < startX2; ++x) {
218 uint8_t* localData = data;
219 int localY = bottomY;
220 int topX = ((x + sx) >> 3) & 0x1F;
221 int bottomX = 7 - ((x + sx) & 7);
222 int bgTile;
223 if (GBRegisterLCDCIsTileData(renderer->lcdc)) {
224 bgTile = maps[topX + topY];
225 } else {
226 bgTile = ((int8_t*) maps)[topX + topY];
227 }
228 int p = 0;
229 if (renderer->model >= GB_MODEL_CGB) {
230 GBObjAttributes attrs = attr[topX + topY];
231 p = GBObjAttributesGetCGBPalette(attrs) * 4;
232 if (GBObjAttributesIsPriority(attrs) && GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
233 p |= 0x80;
234 }
235 if (GBObjAttributesIsBank(attrs)) {
236 localData += GB_SIZE_VRAM_BANK0;
237 }
238 if (GBObjAttributesIsYFlip(attrs)) {
239 localY = 7 - bottomY;
240 }
241 if (GBObjAttributesIsXFlip(attrs)) {
242 bottomX = 7 - bottomX;
243 }
244 }
245 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
246 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
247 tileDataUpper >>= bottomX;
248 tileDataLower >>= bottomX;
249 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
250 }
251 startX = startX2;
252 }
253 for (x = startX; x < endX; x += 8) {
254 uint8_t* localData = data;
255 int localY = bottomY;
256 int topX = ((x + sx) >> 3) & 0x1F;
257 int bgTile;
258 if (GBRegisterLCDCIsTileData(renderer->lcdc)) {
259 bgTile = maps[topX + topY];
260 } else {
261 bgTile = ((int8_t*) maps)[topX + topY];
262 }
263 int p = 0;
264 if (renderer->model >= GB_MODEL_CGB) {
265 GBObjAttributes attrs = attr[topX + topY];
266 p = GBObjAttributesGetCGBPalette(attrs) * 4;
267 if (GBObjAttributesIsPriority(attrs) && GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
268 p |= 0x80;
269 }
270 if (GBObjAttributesIsBank(attrs)) {
271 localData += GB_SIZE_VRAM_BANK0;
272 }
273 if (GBObjAttributesIsYFlip(attrs)) {
274 localY = 7 - bottomY;
275 }
276 if (GBObjAttributesIsXFlip(attrs)) {
277 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
278 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
279 renderer->row[x + 0] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
280 renderer->row[x + 1] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
281 renderer->row[x + 2] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
282 renderer->row[x + 3] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
283 renderer->row[x + 4] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
284 renderer->row[x + 5] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
285 renderer->row[x + 6] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
286 renderer->row[x + 7] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
287 continue;
288 }
289 }
290 uint8_t tileDataLower = localData[(bgTile * 8 + localY) * 2];
291 uint8_t tileDataUpper = localData[(bgTile * 8 + localY) * 2 + 1];
292 renderer->row[x + 7] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
293 renderer->row[x + 6] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
294 renderer->row[x + 5] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
295 renderer->row[x + 4] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
296 renderer->row[x + 3] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
297 renderer->row[x + 2] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
298 renderer->row[x + 1] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
299 renderer->row[x + 0] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
300 }
301}
302
303static void GBVideoSoftwareRendererDrawObj(struct GBVideoSoftwareRenderer* renderer, struct GBObj* obj, int startX, int endX, int y) {
304 int ix = obj->x - 8;
305 if (endX < ix || startX >= ix + 8) {
306 return;
307 }
308 if (obj->x < endX) {
309 endX = obj->x;
310 }
311 if (obj->x - 8 > startX) {
312 startX = obj->x - 8;
313 }
314 if (startX < 0) {
315 startX = 0;
316 }
317 uint8_t* data = renderer->d.vram;
318 int tileOffset = 0;
319 int bottomY;
320 if (GBObjAttributesIsYFlip(obj->attr)) {
321 bottomY = 7 - ((y - obj->y - 16) & 7);
322 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && y - obj->y < -8) {
323 ++tileOffset;
324 }
325 } else {
326 bottomY = (y - obj->y - 16) & 7;
327 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && y - obj->y >= -8) {
328 ++tileOffset;
329 }
330 }
331 if (GBRegisterLCDCIsObjSize(renderer->lcdc) && obj->tile & 1) {
332 --tileOffset;
333 }
334 uint8_t mask = GBObjAttributesIsPriority(obj->attr) ? 0x63 : 0x60;
335 uint8_t mask2 = GBObjAttributesIsPriority(obj->attr) ? 0 : 0x83;
336 int p;
337 if (renderer->model >= GB_MODEL_CGB) {
338 p = (GBObjAttributesGetCGBPalette(obj->attr) + 8) * 4;
339 if (GBObjAttributesIsBank(obj->attr)) {
340 data += GB_SIZE_VRAM_BANK0;
341 }
342 if (!GBRegisterLCDCIsBgEnable(renderer->lcdc)) {
343 mask = 0x60;
344 mask2 = 0x83;
345 }
346 } else {
347 p = (GBObjAttributesGetPalette(obj->attr) + 8) * 4;
348 }
349 int bottomX;
350 int x = startX;
351 if ((x - obj->x) & 7) {
352 for (; x < endX; ++x) {
353 if (GBObjAttributesIsXFlip(obj->attr)) {
354 bottomX = (x - obj->x) & 7;
355 } else {
356 bottomX = 7 - ((x - obj->x) & 7);
357 }
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 tileDataUpper >>= bottomX;
362 tileDataLower >>= bottomX;
363 color_t current = renderer->row[x];
364 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
365 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
366 }
367 }
368 } else if (GBObjAttributesIsXFlip(obj->attr)) {
369 int objTile = obj->tile + tileOffset;
370 uint8_t tileDataLower = data[(objTile * 8 + bottomY) * 2];
371 uint8_t tileDataUpper = data[(objTile * 8 + bottomY) * 2 + 1];
372 color_t current;
373 current = renderer->row[x];
374 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
375 renderer->row[x] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
376 }
377 current = renderer->row[x + 1];
378 if (((tileDataUpper | tileDataLower) & 2) && !(current & mask) && (current & mask2) <= 0x80) {
379 renderer->row[x + 1] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
380 }
381 current = renderer->row[x + 2];
382 if (((tileDataUpper | tileDataLower) & 4) && !(current & mask) && (current & mask2) <= 0x80) {
383 renderer->row[x + 2] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
384 }
385 current = renderer->row[x + 3];
386 if (((tileDataUpper | tileDataLower) & 8) && !(current & mask) && (current & mask2) <= 0x80) {
387 renderer->row[x + 3] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
388 }
389 current = renderer->row[x + 4];
390 if (((tileDataUpper | tileDataLower) & 16) && !(current & mask) && (current & mask2) <= 0x80) {
391 renderer->row[x + 4] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
392 }
393 current = renderer->row[x + 5];
394 if (((tileDataUpper | tileDataLower) & 32) && !(current & mask) && (current & mask2) <= 0x80) {
395 renderer->row[x + 5] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
396 }
397 current = renderer->row[x + 6];
398 if (((tileDataUpper | tileDataLower) & 64) && !(current & mask) && (current & mask2) <= 0x80) {
399 renderer->row[x + 6] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
400 }
401 current = renderer->row[x + 7];
402 if (((tileDataUpper | tileDataLower) & 128) && !(current & mask) && (current & mask2) <= 0x80) {
403 renderer->row[x + 7] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
404 }
405 } else {
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 + 7];
411 if (((tileDataUpper | tileDataLower) & 1) && !(current & mask) && (current & mask2) <= 0x80) {
412 renderer->row[x + 7] = p | ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
413 }
414 current = renderer->row[x + 6];
415 if (((tileDataUpper | tileDataLower) & 2) && !(current & mask) && (current & mask2) <= 0x80) {
416 renderer->row[x + 6] = p | (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
417 }
418 current = renderer->row[x + 5];
419 if (((tileDataUpper | tileDataLower) & 4) && !(current & mask) && (current & mask2) <= 0x80) {
420 renderer->row[x + 5] = p | ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
421 }
422 current = renderer->row[x + 4];
423 if (((tileDataUpper | tileDataLower) & 8) && !(current & mask) && (current & mask2) <= 0x80) {
424 renderer->row[x + 4] = p | ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
425 }
426 current = renderer->row[x + 3];
427 if (((tileDataUpper | tileDataLower) & 16) && !(current & mask) && (current & mask2) <= 0x80) {
428 renderer->row[x + 3] = p | ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
429 }
430 current = renderer->row[x + 2];
431 if (((tileDataUpper | tileDataLower) & 32) && !(current & mask) && (current & mask2) <= 0x80) {
432 renderer->row[x + 2] = p | ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
433 }
434 current = renderer->row[x + 1];
435 if (((tileDataUpper | tileDataLower) & 64) && !(current & mask) && (current & mask2) <= 0x80) {
436 renderer->row[x + 1] = p | ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
437 }
438 current = renderer->row[x];
439 if (((tileDataUpper | tileDataLower) & 128) && !(current & mask) && (current & mask2) <= 0x80) {
440 renderer->row[x] = p | ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
441 }
442 }
443}
444
445static void GBVideoSoftwareRendererGetPixels(struct GBVideoRenderer* renderer, size_t* stride, const void** pixels) {
446 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
447 // TODO: Share with GBAVideoSoftwareRendererGetPixels
448#ifdef COLOR_16_BIT
449 *stride = GB_VIDEO_HORIZONTAL_PIXELS;
450 if (!softwareRenderer->temporaryBuffer) {
451 softwareRenderer->temporaryBuffer = anonymousMemoryMap(GB_VIDEO_HORIZONTAL_PIXELS * GB_VIDEO_VERTICAL_PIXELS * 4);
452 }
453 *pixels = softwareRenderer->temporaryBuffer;
454 unsigned y, x;
455 for (y = 0; y < GB_VIDEO_VERTICAL_PIXELS; ++y) {
456 for (x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS; ++x) {
457 color_t inColor = softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * y + x];
458 uint32_t outColor;
459#ifdef COLOR_5_6_5
460 outColor = (inColor & 0x1F) << 19;
461 outColor |= (inColor & 0x7C0) << 5;
462 outColor |= (inColor & 0xF800) >> 8;
463#else
464 outColor = (inColor & 0x1F) << 3;
465 outColor |= (inColor & 0x3E0) << 6;
466 outColor |= (inColor & 0x7C00) << 9;
467#endif
468 softwareRenderer->temporaryBuffer[GB_VIDEO_HORIZONTAL_PIXELS * y + x] = outColor;
469 }
470 }
471#else
472 *stride = softwareRenderer->outputBufferStride;
473 *pixels = softwareRenderer->outputBuffer;
474#endif
475}
476
477
478static void GBVideoSoftwareRendererPutPixels(struct GBVideoRenderer* renderer, size_t stride, const void* pixels) {
479 struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
480 // TODO: Share with GBAVideoSoftwareRendererGetPixels
481
482 const color_t* colorPixels = pixels;
483 unsigned i;
484 for (i = 0; i < GB_VIDEO_VERTICAL_PIXELS; ++i) {
485 memmove(&softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * i], &colorPixels[stride * i], GB_VIDEO_HORIZONTAL_PIXELS * BYTES_PER_PIXEL);
486 }
487}