Wing Commander II
Reconstructed Win32 source (1996)
Loading...
Searching...
No Matches
wipe.c
Go to the documentation of this file.
1/*
2 * Viewport wipe transitions.
3 *
4 * Retail object 0x448570-0x44ADDF (link order; see docs/ORDER.md).
5 */
6/* This unit owns the wipe storage declared in globals.h (as statics). */
7#define WIPE_C
8#include "game.h"
9
10#pragma function(sqrt)
11/* Function start: 0x448570 */
12signed char InitializeViewportWipe(Viewport *source,
13 Viewport *destination,
14 int wipeType, short duration,
15 short passFlags, void *workspace)
16{
17 int halfWidth;
18 int halfHeight;
19 short scanline;
20
21 g_3_stDissolveSourceViewport = *source;
22 g_1_stWipeScratchSourcePort =
23 g_3_stDissolveSourceViewport;
24 g_19_stFadeToView = *destination;
25 g_26_stWipeTempDestinationViewport =
26 g_19_stFadeToView;
27 g_17_nFadeType = wipeType;
28 g_3_nWipeRoundFlags = passFlags;
29 g_139_nDissolveProgress = 0;
30 duration = 15;
31
32 switch (g_17_nFadeType) {
33 case 0:
34 case 1:
35 case 2:
36 case 3:
37 case 4:
38 case 5:
39 case 6:
40 case 7:
41 case 8:
42 case 9:
43 g_15_nFadeWidth =
44 destination->right - destination->left + 1;
45 g_5_nBlendHeight =
46 destination->bottom - destination->top + 1;
47 if (g_5_nBlendHeight <= g_15_nFadeWidth) {
48 g_1_bWipeWidthAtLeastHeight = 1;
49 g_bBlendWidthLessThanHeight = 0;
50 g_5_nWipeMinorExtent = g_15_nFadeWidth;
51 } else {
52 g_1_bWipeWidthAtLeastHeight = 0;
53 g_bBlendWidthLessThanHeight = 1;
54 g_5_nWipeMinorExtent = g_5_nBlendHeight;
55 }
56 break;
57 }
58
59 switch (g_17_nFadeType) {
60 case 0:
61 SetViewportVerticalBounds(
62 &g_1_stWipeScratchSourcePort,
63 g_3_stDissolveSourceViewport.top - 1,
64 g_3_stDissolveSourceViewport.top - 1);
65 SetViewportVerticalBounds(
66 &g_26_stWipeTempDestinationViewport,
67 g_19_stFadeToView.top - 1,
68 g_19_stFadeToView.top - 1);
69 g_nRevealVertThreshold = g_5_nBlendHeight + 1;
70 g_18_nWipeTotalStages = g_5_nBlendHeight + 1;
71 g_nBlendMaximumStep = (short)(
72 g_5_nBlendHeight + 1 < duration
73 ? g_5_nBlendHeight + 1
74 : duration);
75 g_16_nRevealVerticalDelta = g_nBlendMaximumStep;
76 break;
77 case 1:
78 SetViewportHorizontalBounds(
79 &g_1_stWipeScratchSourcePort,
80 g_3_stDissolveSourceViewport.right + 1,
81 g_3_stDissolveSourceViewport.right + 1);
82 SetViewportHorizontalBounds(
83 &g_26_stWipeTempDestinationViewport,
84 g_19_stFadeToView.right + 1,
85 g_19_stFadeToView.right + 1);
86 g_5_nWipeAcrossThreshold = g_15_nFadeWidth + 1;
87 g_18_nWipeTotalStages = g_15_nFadeWidth + 1;
88 g_nBlendMaximumStep = (short)(
89 g_15_nFadeWidth + 1 < duration
90 ? g_15_nFadeWidth + 1
91 : duration);
92 g_18_nWipeAcrossStride = g_nBlendMaximumStep;
93 break;
94 case 2:
95 SetViewportVerticalBounds(
96 &g_1_stWipeScratchSourcePort,
97 g_3_stDissolveSourceViewport.bottom + 1,
98 g_3_stDissolveSourceViewport.bottom + 1);
99 SetViewportVerticalBounds(
100 &g_26_stWipeTempDestinationViewport,
101 g_19_stFadeToView.bottom + 1,
102 g_19_stFadeToView.bottom + 1);
103 g_nRevealVertThreshold = g_5_nBlendHeight + 1;
104 g_18_nWipeTotalStages = g_5_nBlendHeight + 1;
105 g_nBlendMaximumStep = (short)(
106 g_5_nBlendHeight + 1 < duration
107 ? g_5_nBlendHeight + 1
108 : duration);
109 g_16_nRevealVerticalDelta = g_nBlendMaximumStep;
110 break;
111 case 3:
112 SetViewportHorizontalBounds(
113 &g_1_stWipeScratchSourcePort,
114 g_3_stDissolveSourceViewport.left - 1,
115 g_3_stDissolveSourceViewport.left - 1);
116 SetViewportHorizontalBounds(
117 &g_26_stWipeTempDestinationViewport,
118 g_19_stFadeToView.left - 1,
119 g_19_stFadeToView.left - 1);
120 g_5_nWipeAcrossThreshold = g_15_nFadeWidth + 1;
121 g_18_nWipeTotalStages = g_15_nFadeWidth + 1;
122 g_nBlendMaximumStep = (short)(
123 g_15_nFadeWidth + 1 < duration
124 ? g_15_nFadeWidth + 1
125 : duration);
126 g_18_nWipeAcrossStride = g_nBlendMaximumStep;
127 break;
128 case 4:
129 g_2_nWipePreviousAcrossEdge = -1;
130 g_105_nFadePreviousVerticalEdge = -1;
131 g_5_nWipeAcrossThreshold = g_15_nFadeWidth + 1;
132 g_nRevealVertThreshold = g_5_nBlendHeight + 1;
133 g_18_nWipeTotalStages = g_15_nFadeWidth + 1;
134 g_nBlendMaximumStep =
135 (short)(duration < 320 ? duration : 320);
136 g_16_nRevealVerticalDelta = g_nBlendMaximumStep;
137 g_18_nWipeAcrossStride = g_16_nRevealVerticalDelta;
138 break;
139 case 5:
140 g_2_nWipePreviousAcrossEdge =
141 g_3_stDissolveSourceViewport.right -
142 g_3_stDissolveSourceViewport.left + 1;
143 g_105_nFadePreviousVerticalEdge = -1;
144 g_5_nWipeAcrossThreshold = g_15_nFadeWidth + 1;
145 g_nRevealVertThreshold = g_5_nBlendHeight + 1;
146 g_18_nWipeTotalStages = g_15_nFadeWidth + 1;
147 g_nBlendMaximumStep =
148 (short)(duration < 320 ? duration : 320);
149 g_18_nWipeAcrossStride = g_nBlendMaximumStep;
150 g_16_nRevealVerticalDelta = g_nBlendMaximumStep;
151 break;
152 case 6:
153 g_2_nWipePreviousAcrossEdge =
154 g_3_stDissolveSourceViewport.right -
155 g_3_stDissolveSourceViewport.left + 1;
156 g_105_nFadePreviousVerticalEdge =
157 g_3_stDissolveSourceViewport.bottom -
158 g_3_stDissolveSourceViewport.top + 1;
159 g_5_nWipeAcrossThreshold = g_15_nFadeWidth + 1;
160 g_nRevealVertThreshold = g_5_nBlendHeight + 1;
161 g_18_nWipeTotalStages = g_15_nFadeWidth + 1;
162 g_nBlendMaximumStep =
163 (short)(duration < 320 ? duration : 320);
164 g_16_nRevealVerticalDelta = g_nBlendMaximumStep;
165 g_18_nWipeAcrossStride = g_16_nRevealVerticalDelta;
166 break;
167 case 7:
168 g_2_nWipePreviousAcrossEdge = -1;
169 g_105_nFadePreviousVerticalEdge =
170 g_3_stDissolveSourceViewport.bottom -
171 g_3_stDissolveSourceViewport.top + 1;
172 g_5_nWipeAcrossThreshold = g_15_nFadeWidth + 1;
173 g_nRevealVertThreshold = g_5_nBlendHeight + 1;
174 g_18_nWipeTotalStages = g_15_nFadeWidth + 1;
175 g_nBlendMaximumStep =
176 (short)(duration < 320 ? duration : 320);
177 g_16_nRevealVerticalDelta = g_nBlendMaximumStep;
178 g_18_nWipeAcrossStride = g_16_nRevealVerticalDelta;
179 break;
180 case 8:
181 g_11_nWipeRadialAccumulator = 0;
182 g_nWipeRadialRowCount = g_5_nBlendHeight / 2 + 1;
183 g_11_pWipeFrontEdges =
184 g_3_asWipeRadialLeadingEdge;
185 g_9_pWipeRearEdges =
186 g_asWipeRadialTrailingEdges;
187 halfWidth = g_15_nFadeWidth;
188 halfHeight = g_5_nBlendHeight;
189 g_18_nWipeTotalStages = (short)(
190 sqrt((double)(halfHeight * halfHeight +
191 halfWidth * halfWidth)) /
192 2.0 + 1.0);
193 g_1_nFadeRadialThreshold = g_18_nWipeTotalStages + 2;
194 g_nBlendMaximumStep = (short)(
195 g_18_nWipeTotalStages + 2 < duration
196 ? g_18_nWipeTotalStages + 2
197 : duration);
198 g_18_nBlendRadialStep = g_nBlendMaximumStep;
199 for (scanline = 0; scanline < 200; scanline++) {
200 g_11_pWipeFrontEdges[scanline] = -1;
201 g_9_pWipeRearEdges[scanline] = -1;
202 }
203 break;
204 case 9:
205 g_11_nWipeRadialAccumulator = 0;
206 g_nWipeRadialRowCount = g_5_nBlendHeight / 2 + 1;
207 g_11_pWipeFrontEdges =
208 g_3_asWipeRadialLeadingEdge;
209 g_9_pWipeRearEdges =
210 g_asWipeRadialTrailingEdges;
211 halfWidth = g_15_nFadeWidth;
212 halfHeight = g_5_nBlendHeight;
213 g_18_nWipeTotalStages = (short)(
214 sqrt((double)(halfHeight * halfHeight +
215 halfWidth * halfWidth)) /
216 2.0 + 1.0);
217 g_1_nFadeRadialThreshold = g_18_nWipeTotalStages + 1;
218 g_nBlendMaximumStep = (short)(
219 g_18_nWipeTotalStages + 1 < duration
220 ? g_18_nWipeTotalStages + 1
221 : duration);
222 g_18_nBlendRadialStep = g_nBlendMaximumStep;
223 for (scanline = 0; scanline < g_nWipeRadialRowCount; scanline++) {
224 g_11_pWipeFrontEdges[scanline] = 300;
225 g_9_pWipeRearEdges[scanline] = 300;
226 }
227 break;
228 }
229
230 g_14_nBlendHorizontalTotal =
231 g_18_nWipeAcrossStride >> 2;
232 g_108_nTransitionVertSum =
233 g_16_nRevealVerticalDelta >> 2;
234 g_11_nWipeRadialAccumulator =
235 g_18_nBlendRadialStep >> 2;
236 (void)workspace;
237 return 1;
238}
239
240/* Function start: 0x448D1A */
241void SetViewportHorizontalBounds(Viewport *viewport, int left, int right)
242{
243 viewport->left = (short)left;
244 viewport->right = (short)right;
245}
246
247/* Function start: 0x448D39 */
248void SetViewportVerticalBounds(Viewport *viewport, int top, int bottom)
249{
250 viewport->top = (short)top;
251 viewport->bottom = (short)bottom;
252}
253
254/* Function start: 0x448D58 */
255signed char AdvanceViewportWipe(void *workspace)
256{
257 short verticalCount;
258 short horizontalCount;
259 short *edgeSwap;
260
261 switch (g_17_nFadeType) {
262 case 0:
263 verticalCount = 0;
264 while (g_nRevealVertThreshold >
265 g_108_nTransitionVertSum &&
266 g_18_nWipeTotalStages > g_139_nDissolveProgress) {
267 g_108_nTransitionVertSum +=
268 g_16_nRevealVerticalDelta;
269 verticalCount++;
270 g_139_nDissolveProgress++;
271 }
272 g_108_nTransitionVertSum -=
273 g_nRevealVertThreshold;
274 if ((g_3_nWipeRoundFlags & 1) != 0) {
275 SetViewportVerticalBounds(
276 &g_1_stWipeScratchSourcePort,
277 g_1_stWipeScratchSourcePort.bottom + 1,
278 g_1_stWipeScratchSourcePort.bottom +
279 verticalCount);
280 SetViewportVerticalBounds(
281 &g_26_stWipeTempDestinationViewport,
282 g_26_stWipeTempDestinationViewport.bottom + 1,
283 g_26_stWipeTempDestinationViewport.bottom +
284 verticalCount);
285 CopyViewportContents(
286 &g_1_stWipeScratchSourcePort,
287 &g_26_stWipeTempDestinationViewport);
288 } else {
289 OffsetViewportBounds(
290 &g_1_stWipeScratchSourcePort,
291 0, 1, 0, verticalCount);
292 OffsetViewportBounds(
293 &g_26_stWipeTempDestinationViewport,
294 0, 1, 0, verticalCount);
295 CopyViewportContents(
296 &g_1_stWipeScratchSourcePort,
297 &g_26_stWipeTempDestinationViewport);
298 OffsetViewportBounds(
299 &g_1_stWipeScratchSourcePort,
300 0, -1, 0, 0);
301 OffsetViewportBounds(
302 &g_26_stWipeTempDestinationViewport,
303 0, -1, 0, 0);
304 }
305 break;
306 case 1:
307 horizontalCount = 0;
308 while (g_5_nWipeAcrossThreshold >
309 g_14_nBlendHorizontalTotal &&
310 g_18_nWipeTotalStages > g_139_nDissolveProgress) {
311 g_14_nBlendHorizontalTotal +=
312 g_18_nWipeAcrossStride;
313 horizontalCount++;
314 g_139_nDissolveProgress++;
315 }
316 g_14_nBlendHorizontalTotal -=
317 g_5_nWipeAcrossThreshold;
318 if ((g_3_nWipeRoundFlags & 1) != 0) {
319 SetViewportHorizontalBounds(
320 &g_1_stWipeScratchSourcePort,
321 g_1_stWipeScratchSourcePort.left -
322 horizontalCount,
323 g_1_stWipeScratchSourcePort.left - 1);
324 SetViewportHorizontalBounds(
325 &g_26_stWipeTempDestinationViewport,
326 g_26_stWipeTempDestinationViewport.left -
327 horizontalCount,
328 g_26_stWipeTempDestinationViewport.left - 1);
329 CopyViewportContents(
330 &g_1_stWipeScratchSourcePort,
331 &g_26_stWipeTempDestinationViewport);
332 } else {
333 OffsetViewportBounds(
334 &g_1_stWipeScratchSourcePort,
335 -horizontalCount, 0, -1, 0);
336 OffsetViewportBounds(
337 &g_26_stWipeTempDestinationViewport,
338 -horizontalCount, 0, -1, 0);
339 CopyViewportContents(
340 &g_1_stWipeScratchSourcePort,
341 &g_26_stWipeTempDestinationViewport);
342 OffsetViewportBounds(
343 &g_1_stWipeScratchSourcePort,
344 0, 0, 1, 0);
345 OffsetViewportBounds(
346 &g_26_stWipeTempDestinationViewport,
347 0, 0, 1, 0);
348 }
349 break;
350 case 2:
351 verticalCount = 0;
352 while (g_nRevealVertThreshold >
353 g_108_nTransitionVertSum &&
354 g_18_nWipeTotalStages > g_139_nDissolveProgress) {
355 g_108_nTransitionVertSum +=
356 g_16_nRevealVerticalDelta;
357 verticalCount++;
358 g_139_nDissolveProgress++;
359 }
360 g_108_nTransitionVertSum -=
361 g_nRevealVertThreshold;
362 if ((g_3_nWipeRoundFlags & 1) != 0) {
363 SetViewportVerticalBounds(
364 &g_1_stWipeScratchSourcePort,
365 g_1_stWipeScratchSourcePort.top - verticalCount,
366 g_1_stWipeScratchSourcePort.top - 1);
367 SetViewportVerticalBounds(
368 &g_26_stWipeTempDestinationViewport,
369 g_26_stWipeTempDestinationViewport.top -
370 verticalCount,
371 g_26_stWipeTempDestinationViewport.top - 1);
372 CopyViewportContents(
373 &g_1_stWipeScratchSourcePort,
374 &g_26_stWipeTempDestinationViewport);
375 } else {
376 OffsetViewportBounds(
377 &g_1_stWipeScratchSourcePort,
378 0, -verticalCount, 0, -1);
379 OffsetViewportBounds(
380 &g_26_stWipeTempDestinationViewport,
381 0, -verticalCount, 0, -1);
382 CopyViewportContents(
383 &g_1_stWipeScratchSourcePort,
384 &g_26_stWipeTempDestinationViewport);
385 OffsetViewportBounds(
386 &g_1_stWipeScratchSourcePort,
387 0, 0, 0, 1);
388 OffsetViewportBounds(
389 &g_26_stWipeTempDestinationViewport,
390 0, 0, 0, 1);
391 }
392 break;
393 case 3:
394 horizontalCount = 0;
395 while (g_5_nWipeAcrossThreshold >
396 g_14_nBlendHorizontalTotal &&
397 g_18_nWipeTotalStages > g_139_nDissolveProgress) {
398 g_14_nBlendHorizontalTotal +=
399 g_18_nWipeAcrossStride;
400 horizontalCount++;
401 g_139_nDissolveProgress++;
402 }
403 g_14_nBlendHorizontalTotal -=
404 g_5_nWipeAcrossThreshold;
405 if ((g_3_nWipeRoundFlags & 1) != 0) {
406 SetViewportHorizontalBounds(
407 &g_1_stWipeScratchSourcePort,
408 g_1_stWipeScratchSourcePort.right + 1,
409 g_1_stWipeScratchSourcePort.right +
410 horizontalCount);
411 SetViewportHorizontalBounds(
412 &g_26_stWipeTempDestinationViewport,
413 g_26_stWipeTempDestinationViewport.right + 1,
414 g_26_stWipeTempDestinationViewport.right +
415 horizontalCount);
416 CopyViewportContents(
417 &g_1_stWipeScratchSourcePort,
418 &g_26_stWipeTempDestinationViewport);
419 } else {
420 OffsetViewportBounds(
421 &g_1_stWipeScratchSourcePort,
422 1, 0, horizontalCount, 0);
423 OffsetViewportBounds(
424 &g_26_stWipeTempDestinationViewport,
425 1, 0, horizontalCount, 0);
426 CopyViewportContents(
427 &g_1_stWipeScratchSourcePort,
428 &g_26_stWipeTempDestinationViewport);
429 OffsetViewportBounds(
430 &g_1_stWipeScratchSourcePort,
431 -1, 0, 0, 0);
432 OffsetViewportBounds(
433 &g_26_stWipeTempDestinationViewport,
434 -1, 0, 0, 0);
435 }
436 break;
437 case 4:
438 verticalCount = 0;
439 horizontalCount = verticalCount;
440 while (g_5_nWipeAcrossThreshold >
441 g_14_nBlendHorizontalTotal &&
442 g_18_nWipeTotalStages > g_139_nDissolveProgress) {
443 g_14_nBlendHorizontalTotal +=
444 g_18_nWipeAcrossStride;
445 horizontalCount++;
446 g_139_nDissolveProgress++;
447 }
448 g_14_nBlendHorizontalTotal -=
449 g_5_nWipeAcrossThreshold;
450 while (g_nRevealVertThreshold >
451 g_108_nTransitionVertSum) {
452 g_108_nTransitionVertSum +=
453 g_16_nRevealVerticalDelta;
454 verticalCount++;
455 }
456 g_108_nTransitionVertSum -=
457 g_nRevealVertThreshold;
458 g_3_nFadeCurrentHorizontalEdge =
459 horizontalCount + g_2_nWipePreviousAcrossEdge;
460 g_nWipeCurrentVerticalEdges =
461 verticalCount + g_105_nFadePreviousVerticalEdge;
462 if ((g_3_nWipeRoundFlags & 1) != 0) {
463 if (g_105_nFadePreviousVerticalEdge >= 0 &&
464 horizontalCount != 0) {
465 SetViewportRectangleBounds(
466 &g_1_stWipeScratchSourcePort,
467 g_3_stDissolveSourceViewport.left +
468 g_2_nWipePreviousAcrossEdge + 1,
469 g_3_stDissolveSourceViewport.top,
470 g_3_stDissolveSourceViewport.left +
471 g_3_nFadeCurrentHorizontalEdge,
472 g_3_stDissolveSourceViewport.top +
473 g_105_nFadePreviousVerticalEdge);
474 SetViewportRectangleBounds(
475 &g_26_stWipeTempDestinationViewport,
476 g_19_stFadeToView.left +
477 g_2_nWipePreviousAcrossEdge + 1,
478 g_19_stFadeToView.top,
479 g_19_stFadeToView.left +
480 g_3_nFadeCurrentHorizontalEdge,
481 g_19_stFadeToView.top +
482 g_105_nFadePreviousVerticalEdge);
483 CopyViewportContents(
484 &g_1_stWipeScratchSourcePort,
485 &g_26_stWipeTempDestinationViewport);
486 }
487 if (verticalCount != 0) {
488 SetViewportRectangleBounds(
489 &g_1_stWipeScratchSourcePort,
490 g_3_stDissolveSourceViewport.left,
491 g_3_stDissolveSourceViewport.top +
492 g_105_nFadePreviousVerticalEdge + 1,
493 g_3_stDissolveSourceViewport.left +
494 g_3_nFadeCurrentHorizontalEdge,
495 g_3_stDissolveSourceViewport.top +
496 g_nWipeCurrentVerticalEdges);
497 SetViewportRectangleBounds(
498 &g_26_stWipeTempDestinationViewport,
499 g_19_stFadeToView.left,
500 g_19_stFadeToView.top +
501 g_105_nFadePreviousVerticalEdge + 1,
502 g_19_stFadeToView.left +
503 g_3_nFadeCurrentHorizontalEdge,
504 g_19_stFadeToView.top +
505 g_nWipeCurrentVerticalEdges);
506 CopyViewportContents(
507 &g_1_stWipeScratchSourcePort,
508 &g_26_stWipeTempDestinationViewport);
509 }
510 } else {
511 SetViewportRectangleBounds(
512 &g_1_stWipeScratchSourcePort,
513 g_3_stDissolveSourceViewport.left,
514 g_3_stDissolveSourceViewport.top,
515 g_3_stDissolveSourceViewport.left +
516 g_3_nFadeCurrentHorizontalEdge,
517 g_3_stDissolveSourceViewport.top +
518 g_nWipeCurrentVerticalEdges);
519 SetViewportRectangleBounds(
520 &g_26_stWipeTempDestinationViewport,
521 g_19_stFadeToView.left,
522 g_19_stFadeToView.top,
523 g_19_stFadeToView.left +
524 g_3_nFadeCurrentHorizontalEdge,
525 g_19_stFadeToView.top +
526 g_nWipeCurrentVerticalEdges);
527 CopyViewportContents(
528 &g_1_stWipeScratchSourcePort,
529 &g_26_stWipeTempDestinationViewport);
530 }
531 break;
532 case 5:
533 verticalCount = 0;
534 horizontalCount = verticalCount;
535 while (g_5_nWipeAcrossThreshold >
536 g_14_nBlendHorizontalTotal &&
537 g_18_nWipeTotalStages > g_139_nDissolveProgress) {
538 g_14_nBlendHorizontalTotal +=
539 g_18_nWipeAcrossStride;
540 horizontalCount++;
541 g_139_nDissolveProgress++;
542 }
543 g_14_nBlendHorizontalTotal -=
544 g_5_nWipeAcrossThreshold;
545 while (g_nRevealVertThreshold >
546 g_108_nTransitionVertSum) {
547 g_108_nTransitionVertSum +=
548 g_16_nRevealVerticalDelta;
549 verticalCount++;
550 }
551 g_108_nTransitionVertSum -=
552 g_nRevealVertThreshold;
553 g_3_nFadeCurrentHorizontalEdge =
554 g_2_nWipePreviousAcrossEdge - horizontalCount;
555 g_nWipeCurrentVerticalEdges =
556 verticalCount + g_105_nFadePreviousVerticalEdge;
557 if ((g_3_nWipeRoundFlags & 1) != 0) {
558 if (g_105_nFadePreviousVerticalEdge >= 0 &&
559 horizontalCount != 0) {
560 SetViewportRectangleBounds(
561 &g_1_stWipeScratchSourcePort,
562 g_3_stDissolveSourceViewport.left +
563 g_3_nFadeCurrentHorizontalEdge,
564 g_3_stDissolveSourceViewport.top,
565 g_3_stDissolveSourceViewport.left +
566 g_2_nWipePreviousAcrossEdge - 1,
567 g_3_stDissolveSourceViewport.top +
568 g_105_nFadePreviousVerticalEdge);
569 SetViewportRectangleBounds(
570 &g_26_stWipeTempDestinationViewport,
571 g_19_stFadeToView.left +
572 g_3_nFadeCurrentHorizontalEdge,
573 g_19_stFadeToView.top,
574 g_19_stFadeToView.left +
575 g_2_nWipePreviousAcrossEdge - 1,
576 g_19_stFadeToView.top +
577 g_105_nFadePreviousVerticalEdge);
578 CopyViewportContents(
579 &g_1_stWipeScratchSourcePort,
580 &g_26_stWipeTempDestinationViewport);
581 }
582 if (verticalCount != 0) {
583 SetViewportRectangleBounds(
584 &g_1_stWipeScratchSourcePort,
585 g_3_stDissolveSourceViewport.left +
586 g_3_nFadeCurrentHorizontalEdge,
587 g_3_stDissolveSourceViewport.top +
588 g_105_nFadePreviousVerticalEdge + 1,
589 g_3_stDissolveSourceViewport.right,
590 g_3_stDissolveSourceViewport.top +
591 g_nWipeCurrentVerticalEdges);
592 SetViewportRectangleBounds(
593 &g_26_stWipeTempDestinationViewport,
594 g_19_stFadeToView.left +
595 g_3_nFadeCurrentHorizontalEdge,
596 g_19_stFadeToView.top +
597 g_105_nFadePreviousVerticalEdge + 1,
598 g_19_stFadeToView.right,
599 g_19_stFadeToView.top +
600 g_nWipeCurrentVerticalEdges);
601 CopyViewportContents(
602 &g_1_stWipeScratchSourcePort,
603 &g_26_stWipeTempDestinationViewport);
604 }
605 } else {
606 SetViewportRectangleBounds(
607 &g_1_stWipeScratchSourcePort,
608 g_3_stDissolveSourceViewport.left +
609 g_3_nFadeCurrentHorizontalEdge,
610 g_3_stDissolveSourceViewport.top,
611 g_3_stDissolveSourceViewport.right,
612 g_3_stDissolveSourceViewport.top +
613 g_nWipeCurrentVerticalEdges);
614 SetViewportRectangleBounds(
615 &g_26_stWipeTempDestinationViewport,
616 g_19_stFadeToView.left +
617 g_3_nFadeCurrentHorizontalEdge,
618 g_19_stFadeToView.top,
619 g_19_stFadeToView.right,
620 g_19_stFadeToView.top +
621 g_nWipeCurrentVerticalEdges);
622 CopyViewportContents(
623 &g_1_stWipeScratchSourcePort,
624 &g_26_stWipeTempDestinationViewport);
625 }
626 break;
627 case 6:
628 verticalCount = 0;
629 horizontalCount = verticalCount;
630 while (g_5_nWipeAcrossThreshold >
631 g_14_nBlendHorizontalTotal &&
632 g_18_nWipeTotalStages > g_139_nDissolveProgress) {
633 g_14_nBlendHorizontalTotal +=
634 g_18_nWipeAcrossStride;
635 horizontalCount++;
636 g_139_nDissolveProgress++;
637 }
638 g_14_nBlendHorizontalTotal -=
639 g_5_nWipeAcrossThreshold;
640 while (g_nRevealVertThreshold >
641 g_108_nTransitionVertSum) {
642 g_108_nTransitionVertSum +=
643 g_16_nRevealVerticalDelta;
644 verticalCount++;
645 }
646 g_108_nTransitionVertSum -=
647 g_nRevealVertThreshold;
648 g_3_nFadeCurrentHorizontalEdge =
649 g_2_nWipePreviousAcrossEdge - horizontalCount;
650 g_nWipeCurrentVerticalEdges =
651 g_105_nFadePreviousVerticalEdge - verticalCount;
652 if ((g_3_nWipeRoundFlags & 1) != 0) {
653 if (g_105_nFadePreviousVerticalEdge <=
654 g_3_stDissolveSourceViewport.bottom -
655 g_3_stDissolveSourceViewport.top &&
656 horizontalCount != 0) {
657 SetViewportRectangleBounds(
658 &g_1_stWipeScratchSourcePort,
659 g_3_stDissolveSourceViewport.left +
660 g_3_nFadeCurrentHorizontalEdge,
661 g_3_stDissolveSourceViewport.top +
662 g_105_nFadePreviousVerticalEdge,
663 g_3_stDissolveSourceViewport.left +
664 g_2_nWipePreviousAcrossEdge - 1,
665 g_3_stDissolveSourceViewport.bottom);
666 SetViewportRectangleBounds(
667 &g_26_stWipeTempDestinationViewport,
668 g_19_stFadeToView.left +
669 g_3_nFadeCurrentHorizontalEdge,
670 g_19_stFadeToView.top +
671 g_105_nFadePreviousVerticalEdge,
672 g_19_stFadeToView.left +
673 g_2_nWipePreviousAcrossEdge - 1,
674 g_19_stFadeToView.bottom);
675 CopyViewportContents(
676 &g_1_stWipeScratchSourcePort,
677 &g_26_stWipeTempDestinationViewport);
678 }
679 if (verticalCount != 0) {
680 SetViewportRectangleBounds(
681 &g_1_stWipeScratchSourcePort,
682 g_3_stDissolveSourceViewport.left +
683 g_3_nFadeCurrentHorizontalEdge,
684 g_3_stDissolveSourceViewport.top +
685 g_nWipeCurrentVerticalEdges,
686 g_3_stDissolveSourceViewport.right,
687 g_3_stDissolveSourceViewport.top +
688 g_105_nFadePreviousVerticalEdge - 1);
689 SetViewportRectangleBounds(
690 &g_26_stWipeTempDestinationViewport,
691 g_19_stFadeToView.left +
692 g_3_nFadeCurrentHorizontalEdge,
693 g_19_stFadeToView.top +
694 g_nWipeCurrentVerticalEdges,
695 g_19_stFadeToView.right,
696 g_19_stFadeToView.top +
697 g_105_nFadePreviousVerticalEdge - 1);
698 CopyViewportContents(
699 &g_1_stWipeScratchSourcePort,
700 &g_26_stWipeTempDestinationViewport);
701 }
702 } else {
703 SetViewportRectangleBounds(
704 &g_1_stWipeScratchSourcePort,
705 g_3_stDissolveSourceViewport.left +
706 g_3_nFadeCurrentHorizontalEdge,
707 g_3_stDissolveSourceViewport.top +
708 g_nWipeCurrentVerticalEdges,
709 g_3_stDissolveSourceViewport.right,
710 g_3_stDissolveSourceViewport.bottom);
711 SetViewportRectangleBounds(
712 &g_26_stWipeTempDestinationViewport,
713 g_19_stFadeToView.left +
714 g_3_nFadeCurrentHorizontalEdge,
715 g_19_stFadeToView.top +
716 g_nWipeCurrentVerticalEdges,
717 g_19_stFadeToView.right,
718 g_19_stFadeToView.bottom);
719 CopyViewportContents(
720 &g_1_stWipeScratchSourcePort,
721 &g_26_stWipeTempDestinationViewport);
722 }
723 break;
724 case 7:
725 verticalCount = 0;
726 horizontalCount = verticalCount;
727 while (g_5_nWipeAcrossThreshold >
728 g_14_nBlendHorizontalTotal &&
729 g_18_nWipeTotalStages > g_139_nDissolveProgress) {
730 g_14_nBlendHorizontalTotal +=
731 g_18_nWipeAcrossStride;
732 horizontalCount++;
733 g_139_nDissolveProgress++;
734 }
735 g_14_nBlendHorizontalTotal -=
736 g_5_nWipeAcrossThreshold;
737 while (g_nRevealVertThreshold >
738 g_108_nTransitionVertSum) {
739 g_108_nTransitionVertSum +=
740 g_16_nRevealVerticalDelta;
741 verticalCount++;
742 }
743 g_108_nTransitionVertSum -=
744 g_nRevealVertThreshold;
745 g_3_nFadeCurrentHorizontalEdge =
746 horizontalCount + g_2_nWipePreviousAcrossEdge;
747 g_nWipeCurrentVerticalEdges =
748 g_105_nFadePreviousVerticalEdge - verticalCount;
749 if ((g_3_nWipeRoundFlags & 1) != 0) {
750 if (g_105_nFadePreviousVerticalEdge <=
751 g_3_stDissolveSourceViewport.bottom -
752 g_3_stDissolveSourceViewport.top &&
753 horizontalCount != 0) {
754 SetViewportRectangleBounds(
755 &g_1_stWipeScratchSourcePort,
756 g_3_stDissolveSourceViewport.left +
757 g_2_nWipePreviousAcrossEdge + 1,
758 g_3_stDissolveSourceViewport.top +
759 g_105_nFadePreviousVerticalEdge,
760 g_3_stDissolveSourceViewport.left +
761 g_3_nFadeCurrentHorizontalEdge,
762 g_3_stDissolveSourceViewport.bottom);
763 SetViewportRectangleBounds(
764 &g_26_stWipeTempDestinationViewport,
765 g_19_stFadeToView.left +
766 g_2_nWipePreviousAcrossEdge + 1,
767 g_19_stFadeToView.top +
768 g_105_nFadePreviousVerticalEdge,
769 g_19_stFadeToView.left +
770 g_3_nFadeCurrentHorizontalEdge,
771 g_19_stFadeToView.bottom);
772 CopyViewportContents(
773 &g_1_stWipeScratchSourcePort,
774 &g_26_stWipeTempDestinationViewport);
775 }
776 if (verticalCount != 0) {
777 SetViewportRectangleBounds(
778 &g_1_stWipeScratchSourcePort,
779 g_3_stDissolveSourceViewport.left,
780 g_3_stDissolveSourceViewport.top +
781 g_nWipeCurrentVerticalEdges,
782 g_3_stDissolveSourceViewport.left +
783 g_3_nFadeCurrentHorizontalEdge,
784 g_3_stDissolveSourceViewport.top +
785 g_105_nFadePreviousVerticalEdge - 1);
786 SetViewportRectangleBounds(
787 &g_26_stWipeTempDestinationViewport,
788 g_19_stFadeToView.left,
789 g_19_stFadeToView.top +
790 g_nWipeCurrentVerticalEdges,
791 g_19_stFadeToView.left +
792 g_3_nFadeCurrentHorizontalEdge,
793 g_19_stFadeToView.top +
794 g_105_nFadePreviousVerticalEdge - 1);
795 CopyViewportContents(
796 &g_1_stWipeScratchSourcePort,
797 &g_26_stWipeTempDestinationViewport);
798 }
799 } else {
800 SetViewportRectangleBounds(
801 &g_1_stWipeScratchSourcePort,
802 g_3_stDissolveSourceViewport.left,
803 g_3_stDissolveSourceViewport.top +
804 g_nWipeCurrentVerticalEdges,
805 g_3_stDissolveSourceViewport.left +
806 g_3_nFadeCurrentHorizontalEdge,
807 g_3_stDissolveSourceViewport.bottom);
808 SetViewportRectangleBounds(
809 &g_26_stWipeTempDestinationViewport,
810 g_19_stFadeToView.left,
811 g_19_stFadeToView.top +
812 g_nWipeCurrentVerticalEdges,
813 g_19_stFadeToView.left +
814 g_3_nFadeCurrentHorizontalEdge,
815 g_19_stFadeToView.bottom);
816 CopyViewportContents(
817 &g_1_stWipeScratchSourcePort,
818 &g_26_stWipeTempDestinationViewport);
819 }
820 break;
821 case 8:
822 while (g_1_nFadeRadialThreshold >
823 g_11_nWipeRadialAccumulator &&
824 g_18_nWipeTotalStages > g_139_nDissolveProgress) {
825 g_11_nWipeRadialAccumulator +=
826 g_18_nBlendRadialStep;
827 g_139_nDissolveProgress++;
828 }
829 g_11_nWipeRadialAccumulator -=
830 g_1_nFadeRadialThreshold;
831 GenerateWipeRadialEdges(g_11_pWipeFrontEdges,
832 g_139_nDissolveProgress);
833 BlitWipeRadialBands(
834 &g_1_stWipeScratchSourcePort,
835 &g_26_stWipeTempDestinationViewport,
836 g_9_pWipeRearEdges,
837 g_11_pWipeFrontEdges);
838 if ((g_3_nWipeRoundFlags & 1) != 0) {
839 edgeSwap = g_9_pWipeRearEdges;
840 g_9_pWipeRearEdges = g_11_pWipeFrontEdges;
841 g_11_pWipeFrontEdges = edgeSwap;
842 }
843 break;
844 case 9:
845 while (g_1_nFadeRadialThreshold >
846 g_11_nWipeRadialAccumulator &&
847 g_18_nWipeTotalStages > g_139_nDissolveProgress) {
848 g_11_nWipeRadialAccumulator +=
849 g_18_nBlendRadialStep;
850 g_139_nDissolveProgress++;
851 }
852 g_11_nWipeRadialAccumulator -=
853 g_1_nFadeRadialThreshold;
854 GenerateWipeRadialEdges(
855 g_9_pWipeRearEdges,
856 g_18_nWipeTotalStages - g_139_nDissolveProgress);
857 BlitWipeRadialBands(
858 &g_1_stWipeScratchSourcePort,
859 &g_26_stWipeTempDestinationViewport,
860 g_9_pWipeRearEdges,
861 g_11_pWipeFrontEdges);
862 if ((g_3_nWipeRoundFlags & 1) != 0) {
863 edgeSwap = g_9_pWipeRearEdges;
864 g_9_pWipeRearEdges = g_11_pWipeFrontEdges;
865 g_11_pWipeFrontEdges = edgeSwap;
866 }
867 break;
868 }
869
870 g_2_nWipePreviousAcrossEdge =
871 g_3_nFadeCurrentHorizontalEdge;
872 g_105_nFadePreviousVerticalEdge =
873 g_nWipeCurrentVerticalEdges;
874 (void)workspace;
875 if (g_18_nWipeTotalStages == g_139_nDissolveProgress)
876 return 1;
877 else
878 return 0;
879}
880
881/* Function start: 0x449FAE */
882void OffsetViewportBounds(Viewport *viewport, int left,
883 int top, int right, int bottom)
884{
885 viewport->left += (short)left;
886 viewport->top += (short)top;
887 viewport->right += (short)right;
888 viewport->bottom += (short)bottom;
889}
890
891/* Function start: 0x44A009 */
892void SetViewportRectangleBounds(Viewport *viewport, int left, int top,
893 int right, int bottom)
894{
895 viewport->left = (short)left;
896 viewport->top = (short)top;
897 viewport->right = (short)right;
898 viewport->bottom = (short)bottom;
899}
900
901/* Function start: 0x44A03C */
902void FinishViewportWipe(void *workspace)
903{
904 short width;
905 short height;
906
907 /* "!flags & 1" binds as "(!flags) & 1"; retail tests it that way. */
908 if (!g_3_nWipeRoundFlags & 1) {
909 CopyViewportContents(&g_3_stDissolveSourceViewport,
910 &g_19_stFadeToView);
911 } else {
912 switch (g_17_nFadeType) {
913 case 0:
914 height = g_18_nWipeTotalStages -
915 g_139_nDissolveProgress;
916 SetViewportVerticalBounds(
917 &g_1_stWipeScratchSourcePort,
918 g_1_stWipeScratchSourcePort.bottom + 1,
919 g_1_stWipeScratchSourcePort.bottom + height);
920 SetViewportVerticalBounds(
921 &g_26_stWipeTempDestinationViewport,
922 g_26_stWipeTempDestinationViewport.bottom + 1,
923 g_26_stWipeTempDestinationViewport.bottom +
924 height);
925 CopyViewportContents(
926 &g_1_stWipeScratchSourcePort,
927 &g_26_stWipeTempDestinationViewport);
928 break;
929 case 1:
930 width = g_18_nWipeTotalStages -
931 g_139_nDissolveProgress;
932 SetViewportHorizontalBounds(
933 &g_1_stWipeScratchSourcePort,
934 g_1_stWipeScratchSourcePort.left - width,
935 g_1_stWipeScratchSourcePort.left - 1);
936 SetViewportHorizontalBounds(
937 &g_26_stWipeTempDestinationViewport,
938 g_26_stWipeTempDestinationViewport.left - width,
939 g_26_stWipeTempDestinationViewport.left - 1);
940 CopyViewportContents(
941 &g_1_stWipeScratchSourcePort,
942 &g_26_stWipeTempDestinationViewport);
943 break;
944 case 2:
945 height = g_18_nWipeTotalStages -
946 g_139_nDissolveProgress;
947 SetViewportVerticalBounds(
948 &g_1_stWipeScratchSourcePort,
949 g_1_stWipeScratchSourcePort.top - height,
950 g_1_stWipeScratchSourcePort.top - 1);
951 SetViewportVerticalBounds(
952 &g_26_stWipeTempDestinationViewport,
953 g_26_stWipeTempDestinationViewport.top - height,
954 g_26_stWipeTempDestinationViewport.top - 1);
955 CopyViewportContents(
956 &g_1_stWipeScratchSourcePort,
957 &g_26_stWipeTempDestinationViewport);
958 break;
959 case 3:
960 width = g_18_nWipeTotalStages -
961 g_139_nDissolveProgress;
962 SetViewportHorizontalBounds(
963 &g_1_stWipeScratchSourcePort,
964 g_1_stWipeScratchSourcePort.right + 1,
965 g_1_stWipeScratchSourcePort.right + width);
966 SetViewportHorizontalBounds(
967 &g_26_stWipeTempDestinationViewport,
968 g_26_stWipeTempDestinationViewport.right + 1,
969 g_26_stWipeTempDestinationViewport.right + width);
970 CopyViewportContents(
971 &g_1_stWipeScratchSourcePort,
972 &g_26_stWipeTempDestinationViewport);
973 break;
974 case 4:
975 g_3_nFadeCurrentHorizontalEdge =
976 g_3_stDissolveSourceViewport.right -
977 g_3_stDissolveSourceViewport.left;
978 g_nWipeCurrentVerticalEdges =
979 g_3_stDissolveSourceViewport.bottom -
980 g_3_stDissolveSourceViewport.top;
981 if (g_105_nFadePreviousVerticalEdge >= 0) {
982 SetViewportRectangleBounds(
983 &g_1_stWipeScratchSourcePort,
984 g_3_stDissolveSourceViewport.left +
985 g_2_nWipePreviousAcrossEdge + 1,
986 g_3_stDissolveSourceViewport.top,
987 g_3_stDissolveSourceViewport.left +
988 g_3_nFadeCurrentHorizontalEdge,
989 g_3_stDissolveSourceViewport.top +
990 g_105_nFadePreviousVerticalEdge);
991 SetViewportRectangleBounds(
992 &g_26_stWipeTempDestinationViewport,
993 g_19_stFadeToView.left +
994 g_2_nWipePreviousAcrossEdge + 1,
995 g_19_stFadeToView.top,
996 g_19_stFadeToView.left +
997 g_3_nFadeCurrentHorizontalEdge,
998 g_19_stFadeToView.top +
999 g_105_nFadePreviousVerticalEdge);
1000 CopyViewportContents(
1001 &g_1_stWipeScratchSourcePort,
1002 &g_26_stWipeTempDestinationViewport);
1003 }
1004 SetViewportRectangleBounds(
1005 &g_1_stWipeScratchSourcePort,
1006 g_3_stDissolveSourceViewport.left,
1007 g_3_stDissolveSourceViewport.top +
1008 g_105_nFadePreviousVerticalEdge + 1,
1009 g_3_stDissolveSourceViewport.left +
1010 g_3_nFadeCurrentHorizontalEdge,
1011 g_3_stDissolveSourceViewport.top +
1012 g_nWipeCurrentVerticalEdges);
1013 SetViewportRectangleBounds(
1014 &g_26_stWipeTempDestinationViewport,
1015 g_19_stFadeToView.left,
1016 g_19_stFadeToView.top +
1017 g_105_nFadePreviousVerticalEdge + 1,
1018 g_19_stFadeToView.left +
1019 g_3_nFadeCurrentHorizontalEdge,
1020 g_19_stFadeToView.top +
1021 g_nWipeCurrentVerticalEdges);
1022 CopyViewportContents(
1023 &g_1_stWipeScratchSourcePort,
1024 &g_26_stWipeTempDestinationViewport);
1025 break;
1026 case 5:
1027 g_3_nFadeCurrentHorizontalEdge = 0;
1028 g_nWipeCurrentVerticalEdges =
1029 g_3_stDissolveSourceViewport.bottom -
1030 g_3_stDissolveSourceViewport.top;
1031 if (g_105_nFadePreviousVerticalEdge >= 0) {
1032 SetViewportRectangleBounds(
1033 &g_1_stWipeScratchSourcePort,
1034 g_3_stDissolveSourceViewport.left +
1035 g_3_nFadeCurrentHorizontalEdge,
1036 g_3_stDissolveSourceViewport.top,
1037 g_3_stDissolveSourceViewport.left +
1038 g_2_nWipePreviousAcrossEdge - 1,
1039 g_3_stDissolveSourceViewport.top +
1040 g_105_nFadePreviousVerticalEdge);
1041 SetViewportRectangleBounds(
1042 &g_26_stWipeTempDestinationViewport,
1043 g_19_stFadeToView.left +
1044 g_3_nFadeCurrentHorizontalEdge,
1045 g_19_stFadeToView.top,
1046 g_19_stFadeToView.left +
1047 g_2_nWipePreviousAcrossEdge - 1,
1048 g_19_stFadeToView.top +
1049 g_105_nFadePreviousVerticalEdge);
1050 CopyViewportContents(
1051 &g_1_stWipeScratchSourcePort,
1052 &g_26_stWipeTempDestinationViewport);
1053 }
1054 SetViewportRectangleBounds(
1055 &g_1_stWipeScratchSourcePort,
1056 g_3_stDissolveSourceViewport.left +
1057 g_3_nFadeCurrentHorizontalEdge,
1058 g_3_stDissolveSourceViewport.top +
1059 g_105_nFadePreviousVerticalEdge + 1,
1060 g_3_stDissolveSourceViewport.right,
1061 g_3_stDissolveSourceViewport.top +
1062 g_nWipeCurrentVerticalEdges);
1063 SetViewportRectangleBounds(
1064 &g_26_stWipeTempDestinationViewport,
1065 g_19_stFadeToView.left +
1066 g_3_nFadeCurrentHorizontalEdge,
1067 g_19_stFadeToView.top +
1068 g_105_nFadePreviousVerticalEdge + 1,
1069 g_19_stFadeToView.right,
1070 g_19_stFadeToView.top +
1071 g_nWipeCurrentVerticalEdges);
1072 CopyViewportContents(
1073 &g_1_stWipeScratchSourcePort,
1074 &g_26_stWipeTempDestinationViewport);
1075 break;
1076 case 6:
1077 g_3_nFadeCurrentHorizontalEdge = 0;
1078 g_nWipeCurrentVerticalEdges = 0;
1079 if (g_105_nFadePreviousVerticalEdge >= 0) {
1080 SetViewportRectangleBounds(
1081 &g_1_stWipeScratchSourcePort,
1082 g_3_stDissolveSourceViewport.left +
1083 g_3_nFadeCurrentHorizontalEdge,
1084 g_3_stDissolveSourceViewport.top +
1085 g_105_nFadePreviousVerticalEdge,
1086 g_3_stDissolveSourceViewport.left +
1087 g_2_nWipePreviousAcrossEdge - 1,
1088 g_3_stDissolveSourceViewport.bottom);
1089 SetViewportRectangleBounds(
1090 &g_26_stWipeTempDestinationViewport,
1091 g_19_stFadeToView.left +
1092 g_3_nFadeCurrentHorizontalEdge,
1093 g_19_stFadeToView.top +
1094 g_105_nFadePreviousVerticalEdge,
1095 g_19_stFadeToView.left +
1096 g_2_nWipePreviousAcrossEdge - 1,
1097 g_19_stFadeToView.bottom);
1098 CopyViewportContents(
1099 &g_1_stWipeScratchSourcePort,
1100 &g_26_stWipeTempDestinationViewport);
1101 }
1102 SetViewportRectangleBounds(
1103 &g_1_stWipeScratchSourcePort,
1104 g_3_stDissolveSourceViewport.left +
1105 g_3_nFadeCurrentHorizontalEdge,
1106 g_3_stDissolveSourceViewport.top +
1107 g_nWipeCurrentVerticalEdges,
1108 g_3_stDissolveSourceViewport.right,
1109 g_3_stDissolveSourceViewport.top +
1110 g_105_nFadePreviousVerticalEdge + 1);
1111 SetViewportRectangleBounds(
1112 &g_26_stWipeTempDestinationViewport,
1113 g_19_stFadeToView.left +
1114 g_3_nFadeCurrentHorizontalEdge,
1115 g_19_stFadeToView.top +
1116 g_nWipeCurrentVerticalEdges,
1117 g_19_stFadeToView.right,
1118 g_19_stFadeToView.top +
1119 g_105_nFadePreviousVerticalEdge + 1);
1120 CopyViewportContents(
1121 &g_1_stWipeScratchSourcePort,
1122 &g_26_stWipeTempDestinationViewport);
1123 break;
1124 case 7:
1125 g_3_nFadeCurrentHorizontalEdge =
1126 g_3_stDissolveSourceViewport.right -
1127 g_3_stDissolveSourceViewport.left;
1128 g_nWipeCurrentVerticalEdges = 0;
1129 if (g_105_nFadePreviousVerticalEdge >= 0) {
1130 SetViewportRectangleBounds(
1131 &g_1_stWipeScratchSourcePort,
1132 g_3_stDissolveSourceViewport.left +
1133 g_2_nWipePreviousAcrossEdge + 1,
1134 g_3_stDissolveSourceViewport.top +
1135 g_105_nFadePreviousVerticalEdge,
1136 g_3_stDissolveSourceViewport.left +
1137 g_3_nFadeCurrentHorizontalEdge,
1138 g_3_stDissolveSourceViewport.bottom);
1139 SetViewportRectangleBounds(
1140 &g_26_stWipeTempDestinationViewport,
1141 g_19_stFadeToView.left +
1142 g_2_nWipePreviousAcrossEdge + 1,
1143 g_19_stFadeToView.top +
1144 g_105_nFadePreviousVerticalEdge,
1145 g_19_stFadeToView.left +
1146 g_3_nFadeCurrentHorizontalEdge,
1147 g_19_stFadeToView.bottom);
1148 CopyViewportContents(
1149 &g_1_stWipeScratchSourcePort,
1150 &g_26_stWipeTempDestinationViewport);
1151 }
1152 SetViewportRectangleBounds(
1153 &g_1_stWipeScratchSourcePort,
1154 g_3_stDissolveSourceViewport.left,
1155 g_3_stDissolveSourceViewport.top +
1156 g_nWipeCurrentVerticalEdges,
1157 g_3_stDissolveSourceViewport.left +
1158 g_3_nFadeCurrentHorizontalEdge,
1159 g_3_stDissolveSourceViewport.top +
1160 g_105_nFadePreviousVerticalEdge + 1);
1161 SetViewportRectangleBounds(
1162 &g_26_stWipeTempDestinationViewport,
1163 g_19_stFadeToView.left,
1164 g_19_stFadeToView.top +
1165 g_nWipeCurrentVerticalEdges,
1166 g_19_stFadeToView.left +
1167 g_3_nFadeCurrentHorizontalEdge,
1168 g_19_stFadeToView.top +
1169 g_105_nFadePreviousVerticalEdge + 1);
1170 CopyViewportContents(
1171 &g_1_stWipeScratchSourcePort,
1172 &g_26_stWipeTempDestinationViewport);
1173 break;
1174 case 8:
1175 g_139_nDissolveProgress = g_18_nWipeTotalStages;
1176 GenerateWipeRadialEdges(g_11_pWipeFrontEdges,
1177 g_139_nDissolveProgress);
1178 BlitWipeRadialBands(
1179 &g_1_stWipeScratchSourcePort,
1180 &g_26_stWipeTempDestinationViewport,
1181 g_9_pWipeRearEdges,
1182 g_11_pWipeFrontEdges);
1183 break;
1184 case 9:
1185 g_139_nDissolveProgress = g_18_nWipeTotalStages;
1186 GenerateWipeRadialEdges(
1187 g_9_pWipeRearEdges,
1188 g_18_nWipeTotalStages - g_139_nDissolveProgress);
1189 BlitWipeRadialBands(
1190 &g_1_stWipeScratchSourcePort,
1191 &g_26_stWipeTempDestinationViewport,
1192 g_9_pWipeRearEdges,
1193 g_11_pWipeFrontEdges);
1194 break;
1195 }
1196 }
1197 (void)workspace;
1198}
1199
1200/* Function start: 0x44A910 */
1201void GenerateWipeRadialEdges(short *edges, int radius)
1202{
1203 short y;
1204 short err;
1205 short lastY;
1206 short decision;
1207 short blankRow;
1208 short x;
1209
1210 x = 0;
1211 y = (short)radius;
1212 err = (short)((1 - radius) * 2);
1213 if (g_nWipeRadialRowCount > y)
1214 edges[y] = x;
1215 lastY = y;
1216
1217 while (y > 0) {
1218 if (err < 0) {
1219 decision = (short)((err + y) * 2 - 1);
1220 if (decision > 0) {
1221 x++;
1222 y--;
1223 err += 2 * (x - y + 1);
1224 } else {
1225 x++;
1226 err += x * 2 + 1;
1227 }
1228 } else if (err > 0) {
1229 decision = (short)((err - x) * 2 - 1);
1230 if (decision > 0) {
1231 y--;
1232 err += 1 - y * 2;
1233 } else {
1234 x++;
1235 y--;
1236 err += 2 * (x - y + 1);
1237 }
1238 } else {
1239 x++;
1240 y--;
1241 err += 2 * (x - y + 1);
1242 }
1243 if (lastY != y) {
1244 if (g_nWipeRadialRowCount > y)
1245 edges[y] = x;
1246 lastY = y;
1247 }
1248 }
1249
1250 if (radius == 0)
1251 edges[0] = -1;
1252 for (blankRow = (short)(radius + 1);
1253 g_nWipeRadialRowCount > blankRow;
1254 blankRow++) {
1255 edges[blankRow] = -1;
1256 }
1257}
1258
1259#pragma function(memcpy)
1260/* Function start: 0x44AAE5 */
1261void BlitWipeRadialBands(Viewport *source, Viewport *destination,
1262 short *trailingEdges, short *leadingEdges)
1263{
1264 short src_left_center;
1265 unsigned short *dst_row_offsets_lower;
1266 short radial_right_half_end;
1267 short half_source_width;
1268 short source_right_x;
1269 short dest_right_x;
1270 short wipe_row_count;
1271 short remaining_upper_rows;
1272 short wipe_width;
1273 int lead_width;
1274 short top_center_row;
1275 int bands_processed;
1276 short *wipe_trailing_edge;
1277 short *wipe_leading_widths;
1278 short wipe_left_half_extent;
1279 unsigned short *lower_src_row_offsets;
1280 short lower_center_offset;
1281 short band_width;
1282 short dst_midpoint_left;
1283 unsigned short *src_top_rows;
1284 unsigned short *destination_top_rows;
1285
1286 wipe_width = source->right - source->left + 1;
1287 half_source_width = (wipe_width + 1) >> 1;
1288 wipe_left_half_extent = half_source_width - 1;
1289 radial_right_half_end = wipe_left_half_extent;
1290 wipe_row_count = source->bottom - source->top + 1;
1291 remaining_upper_rows = (wipe_row_count + 1) >> 1;
1292 top_center_row = remaining_upper_rows - 1;
1293 lower_center_offset = wipe_row_count >> 1;
1294 src_left_center = source->left + wipe_left_half_extent;
1295 source_right_x = source->left + radial_right_half_end;
1296 src_top_rows = source->rowOffsets +
1297 (source->top + top_center_row);
1298 lower_src_row_offsets = source->rowOffsets +
1299 (source->top + lower_center_offset);
1300 dst_midpoint_left = destination->left + wipe_left_half_extent;
1301 dest_right_x = destination->left + radial_right_half_end;
1302 destination_top_rows = destination->rowOffsets +
1303 (destination->top + top_center_row);
1304 dst_row_offsets_lower = destination->rowOffsets +
1305 (destination->top + lower_center_offset);
1306 bands_processed = 0;
1307 wipe_leading_widths = leadingEdges;
1308 wipe_trailing_edge = trailingEdges;
1309
1310 while ((lead_width = *wipe_leading_widths) >= 0) {
1311 if (lead_width >= half_source_width)
1312 lead_width = half_source_width - 1;
1313 if (*wipe_trailing_edge < half_source_width) {
1314 band_width = (short)(lead_width - *wipe_trailing_edge);
1315 memmove(destination->pixels + dst_row_offsets_lower[bands_processed] +
1316 *wipe_trailing_edge + dest_right_x + 1,
1317 source->pixels + lower_src_row_offsets[bands_processed] +
1318 *wipe_trailing_edge + source_right_x + 1,
1319 band_width);
1320 memmove(destination->pixels +
1321 (dst_row_offsets_lower[bands_processed] + dst_midpoint_left -
1322 1 - *wipe_trailing_edge) - band_width,
1323 source->pixels +
1324 (lower_src_row_offsets[bands_processed] + src_left_center - 1 -
1325 *wipe_trailing_edge) - band_width,
1326 band_width);
1327 {
1328 memmove(destination->pixels + *(dst_row_offsets_lower - bands_processed - 1) +
1329 *wipe_trailing_edge + dest_right_x,
1330 source->pixels + *(lower_src_row_offsets - bands_processed - 1) +
1331 *wipe_trailing_edge + source_right_x,
1332 band_width);
1333 memmove(destination->pixels +
1334 (*(dst_row_offsets_lower - bands_processed - 1) +
1335 dst_midpoint_left - *wipe_trailing_edge) - band_width,
1336 source->pixels +
1337 (*(lower_src_row_offsets - bands_processed - 1) + src_left_center -
1338 *wipe_trailing_edge) - band_width,
1339 band_width);
1340 }
1341 }
1342 bands_processed++;
1343 wipe_leading_widths++;
1344 wipe_trailing_edge++;
1345 remaining_upper_rows--;
1346 if (remaining_upper_rows == 0)
1347 break;
1348 }
1349}
1350
1351/* Linker commons defined here. LINK lays a unit's commons out by the
1352 * identifiers' hash keys, so these spellings follow the original addresses. */
1353short g_nWipeRadialRowCount; /* 0x005d17b4 */
void
void(__cdecl *g_pIxFree)(void *)
OffsetViewportBounds
void OffsetViewportBounds(Viewport *viewport, int left, int top, int right, int bottom)
Definition wipe.c:882
SetViewportRectangleBounds
void SetViewportRectangleBounds(Viewport *viewport, int left, int top, int right, int bottom)
Definition wipe.c:892
SetViewportHorizontalBounds
void SetViewportHorizontalBounds(Viewport *viewport, int left, int right)
Definition wipe.c:241
InitializeViewportWipe
signed char InitializeViewportWipe(Viewport *source, Viewport *destination, int wipeType, short duration, short passFlags, void *workspace)
Definition wipe.c:12
GenerateWipeRadialEdges
void GenerateWipeRadialEdges(short *edges, int radius)
Definition wipe.c:1201
AdvanceViewportWipe
signed char AdvanceViewportWipe(void *workspace)
Definition wipe.c:255
BlitWipeRadialBands
void BlitWipeRadialBands(Viewport *source, Viewport *destination, short *trailingEdges, short *leadingEdges)
Definition wipe.c:1261
SetViewportVerticalBounds
void SetViewportVerticalBounds(Viewport *viewport, int top, int bottom)
Definition wipe.c:248
CopyViewportContents
void CopyViewportContents(Viewport *source, Viewport *destination)
Definition gr.c:995
FinishViewportWipe
void FinishViewportWipe(void *workspace)
Definition wipe.c:902
game.h
Shared Win32 declarations, types and library interfaces.
g_nBlendMaximumStep
WIPE_STATIC short g_nBlendMaximumStep
Definition globals.h:578
g_18_nBlendRadialStep
WIPE_STATIC int g_18_nBlendRadialStep
Definition globals.h:549
g_nWipeCurrentVerticalEdges
WIPE_STATIC short g_nWipeCurrentVerticalEdges
Definition globals.h:566
g_nWipeRadialRowCount
short g_nWipeRadialRowCount
Definition wipe.c:1353
g_1_stWipeScratchSourcePort
WIPE_STATIC Viewport g_1_stWipeScratchSourcePort
Definition globals.h:579
g_5_nWipeAcrossThreshold
WIPE_STATIC int g_5_nWipeAcrossThreshold
Definition globals.h:571
g_asWipeRadialTrailingEdges
WIPE_STATIC short g_asWipeRadialTrailingEdges[200]
Definition globals.h:553
g_2_nWipePreviousAcrossEdge
WIPE_STATIC short g_2_nWipePreviousAcrossEdge
Definition globals.h:567
g_3_asWipeRadialLeadingEdge
WIPE_STATIC short g_3_asWipeRadialLeadingEdge[200]
Definition globals.h:552
g_18_nWipeAcrossStride
WIPE_STATIC int g_18_nWipeAcrossStride
Definition globals.h:569
g_139_nDissolveProgress
WIPE_STATIC short g_139_nDissolveProgress
Definition globals.h:557
g_3_stDissolveSourceViewport
WIPE_STATIC Viewport g_3_stDissolveSourceViewport
Definition globals.h:572
g_9_pWipeRearEdges
WIPE_STATIC short * g_9_pWipeRearEdges
Definition globals.h:559
g_105_nFadePreviousVerticalEdge
WIPE_STATIC short g_105_nFadePreviousVerticalEdge
Definition globals.h:568
g_5_nWipeMinorExtent
WIPE_STATIC short g_5_nWipeMinorExtent
Definition globals.h:554
g_11_pWipeFrontEdges
WIPE_STATIC short * g_11_pWipeFrontEdges
Definition globals.h:558
g_19_stFadeToView
WIPE_STATIC Viewport g_19_stFadeToView
Definition globals.h:564
g_11_nWipeRadialAccumulator
WIPE_STATIC int g_11_nWipeRadialAccumulator
Definition globals.h:550
g_16_nRevealVerticalDelta
WIPE_STATIC int g_16_nRevealVerticalDelta
Definition globals.h:575
g_1_nFadeRadialThreshold
WIPE_STATIC int g_1_nFadeRadialThreshold
Definition globals.h:551
g_3_nFadeCurrentHorizontalEdge
WIPE_STATIC short g_3_nFadeCurrentHorizontalEdge
Definition globals.h:565
g_5_nBlendHeight
WIPE_STATIC short g_5_nBlendHeight
Definition globals.h:563
g_17_nFadeType
WIPE_STATIC int g_17_nFadeType
Definition globals.h:561
g_26_stWipeTempDestinationViewport
WIPE_STATIC Viewport g_26_stWipeTempDestinationViewport
Definition globals.h:573
g_3_nWipeRoundFlags
WIPE_STATIC short g_3_nWipeRoundFlags
Definition globals.h:574
g_bBlendWidthLessThanHeight
WIPE_STATIC signed char g_bBlendWidthLessThanHeight
Definition globals.h:556
g_18_nWipeTotalStages
WIPE_STATIC short g_18_nWipeTotalStages
Definition globals.h:560
g_14_nBlendHorizontalTotal
WIPE_STATIC int g_14_nBlendHorizontalTotal
Definition globals.h:570
g_1_bWipeWidthAtLeastHeight
WIPE_STATIC signed char g_1_bWipeWidthAtLeastHeight
Definition globals.h:555
g_108_nTransitionVertSum
WIPE_STATIC int g_108_nTransitionVertSum
Definition globals.h:576
g_15_nFadeWidth
WIPE_STATIC short g_15_nFadeWidth
Definition globals.h:562
g_nRevealVertThreshold
WIPE_STATIC int g_nRevealVertThreshold
Definition globals.h:577
Viewport::pixels
unsigned char * pixels
Definition game.h:150
Viewport::right
short right
Definition game.h:154
Viewport::bottom
short bottom
Definition game.h:155
Viewport::rowOffsets
unsigned short * rowOffsets
Definition game.h:151
Viewport::left
short left
Definition game.h:152
Viewport::top
short top
Definition game.h:153