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