1 |
|
|
/*************************************************************************** |
2 |
|
|
* Copyright (c) 2024 Microsoft Corporation |
3 |
|
|
* |
4 |
|
|
* This program and the accompanying materials are made available under the |
5 |
|
|
* terms of the MIT License which is available at |
6 |
|
|
* https://opensource.org/licenses/MIT. |
7 |
|
|
* |
8 |
|
|
* SPDX-License-Identifier: MIT |
9 |
|
|
**************************************************************************/ |
10 |
|
|
|
11 |
|
|
|
12 |
|
|
/**************************************************************************/ |
13 |
|
|
/**************************************************************************/ |
14 |
|
|
/** */ |
15 |
|
|
/** GUIX Component */ |
16 |
|
|
/** */ |
17 |
|
|
/** Display Management (Display) */ |
18 |
|
|
/** */ |
19 |
|
|
/**************************************************************************/ |
20 |
|
|
#define GX_SOURCE_CODE |
21 |
|
|
|
22 |
|
|
/* Include necessary system files. */ |
23 |
|
|
|
24 |
|
|
#include "gx_api.h" |
25 |
|
|
#include "gx_display.h" |
26 |
|
|
#include "gx_context.h" |
27 |
|
|
#include "gx_utility.h" |
28 |
|
|
#include "gx_system.h" |
29 |
|
|
|
30 |
|
|
/**************************************************************************/ |
31 |
|
|
/* */ |
32 |
|
|
/* FUNCTION RELEASE */ |
33 |
|
|
/* */ |
34 |
|
|
/* _gx_display_driver_4bpp_pixelmap_raw_rotate PORTABLE C */ |
35 |
|
|
/* 6.1.10 */ |
36 |
|
|
/* AUTHOR */ |
37 |
|
|
/* */ |
38 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
39 |
|
|
/* */ |
40 |
|
|
/* DESCRIPTION */ |
41 |
|
|
/* */ |
42 |
|
|
/* Internal helper function that rotate an uncompressed pixelmap */ |
43 |
|
|
/* without transparent. */ |
44 |
|
|
/* */ |
45 |
|
|
/* INPUT */ |
46 |
|
|
/* */ |
47 |
|
|
/* context Drawing context */ |
48 |
|
|
/* xpos x-coord of top-left draw point*/ |
49 |
|
|
/* ypos y-coord of top-left draw point*/ |
50 |
|
|
/* pixelmap Pointer to GX_PIXELMAP struct */ |
51 |
|
|
/* angle The angle to rotate */ |
52 |
|
|
/* rot_cx x-coord of rotate center */ |
53 |
|
|
/* rot_cy y-coord of rotate center */ |
54 |
|
|
/* */ |
55 |
|
|
/* OUTPUT */ |
56 |
|
|
/* */ |
57 |
|
|
/* status Completion status */ |
58 |
|
|
/* */ |
59 |
|
|
/* CALLS */ |
60 |
|
|
/* */ |
61 |
|
|
/* _gx_utility_math_cos Compute the cosine value */ |
62 |
|
|
/* _gx_utility_math_sin Compute the sine value */ |
63 |
|
|
/* */ |
64 |
|
|
/* CALLED BY */ |
65 |
|
|
/* */ |
66 |
|
|
/* _gx_display_driver_4bpp_pixelmap_rotate */ |
67 |
|
|
/* */ |
68 |
|
|
/* RELEASE HISTORY */ |
69 |
|
|
/* */ |
70 |
|
|
/* DATE NAME DESCRIPTION */ |
71 |
|
|
/* */ |
72 |
|
|
/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
73 |
|
|
/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
74 |
|
|
/* resulting in version 6.1 */ |
75 |
|
|
/* 01-31-2022 Ting Zhu Modified comment(s), */ |
76 |
|
|
/* corrected logic, */ |
77 |
|
|
/* resulting in version 6.1.10 */ |
78 |
|
|
/* */ |
79 |
|
|
/**************************************************************************/ |
80 |
|
1068 |
static VOID _gx_display_driver_4bpp_pixelmap_raw_rotate(GX_DRAW_CONTEXT *context, INT xpos, INT ypos, GX_PIXELMAP *pixelmap, |
81 |
|
|
INT angle, INT cx, INT cy) |
82 |
|
|
{ |
83 |
|
|
GX_UBYTE *putrow; |
84 |
|
|
GX_UBYTE *put; |
85 |
|
|
GX_UBYTE *get; |
86 |
|
|
INT srcxres; |
87 |
|
|
INT srcyres; |
88 |
|
|
INT cosv; |
89 |
|
|
INT sinv; |
90 |
|
|
INT idxminx; |
91 |
|
|
INT idxmaxx; |
92 |
|
|
INT idxmaxy; |
93 |
|
1068 |
INT mx[] = {-1, 1, 1, -1}; |
94 |
|
1068 |
INT my[] = {1, 1, -1, -1}; |
95 |
|
|
INT xres; |
96 |
|
|
INT yres; |
97 |
|
|
INT x; |
98 |
|
|
INT y; |
99 |
|
|
INT xx; |
100 |
|
|
INT yy; |
101 |
|
|
GX_RECTANGLE *clip; |
102 |
|
|
INT newxpos; |
103 |
|
|
INT newypos; |
104 |
|
|
GX_UBYTE putmask; |
105 |
|
|
INT putstride; |
106 |
|
|
INT getstride; |
107 |
|
|
GX_UBYTE color; |
108 |
|
|
|
109 |
|
1068 |
clip = context -> gx_draw_context_clip; |
110 |
|
|
|
111 |
|
|
/* Set transparent color. */ |
112 |
|
1068 |
idxminx = (angle / 90) & 0x3; |
113 |
|
1068 |
idxmaxx = (idxminx + 2) & 0x3; |
114 |
|
1068 |
idxmaxy = (idxminx + 1) & 0x3; |
115 |
|
|
|
116 |
|
|
/* Calculate the source x and y center. */ |
117 |
|
1068 |
srcxres = pixelmap -> gx_pixelmap_width >> 1; |
118 |
|
1068 |
srcyres = pixelmap -> gx_pixelmap_height >> 1; |
119 |
|
|
|
120 |
|
1068 |
cosv = _gx_utility_math_cos(GX_FIXED_VAL_MAKE(angle)); |
121 |
|
1068 |
sinv = _gx_utility_math_sin(GX_FIXED_VAL_MAKE(angle)); |
122 |
|
|
|
123 |
|
1068 |
xres = GX_FIXED_VAL_TO_INT((mx[idxmaxx] * (srcxres + 2) * cosv - my[idxmaxx] * (srcyres + 2) * sinv)); |
124 |
|
1068 |
yres = GX_FIXED_VAL_TO_INT((my[idxmaxy] * (srcyres + 2) * cosv + mx[idxmaxy] * (srcxres + 2) * sinv)); |
125 |
|
|
|
126 |
|
1068 |
getstride = (pixelmap -> gx_pixelmap_width + 1) >> 1; |
127 |
|
1068 |
putstride = (context -> gx_draw_context_pitch + 1) >> 1; |
128 |
|
1068 |
putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
129 |
|
1068 |
putrow += clip -> gx_rectangle_top * putstride; |
130 |
|
1068 |
putrow += clip -> gx_rectangle_left >> 1; |
131 |
|
|
|
132 |
|
|
/* Calculate the new rotation axis. */ |
133 |
|
1068 |
xres = GX_FIXED_VAL_TO_INT((cx - srcxres) * cosv - (cy - srcyres) * sinv) + xres; |
134 |
|
1068 |
yres = GX_FIXED_VAL_TO_INT((cy - srcyres) * cosv + (cx - srcxres) * sinv) + yres; |
135 |
|
|
|
136 |
|
1068 |
newxpos = xpos + cx - xres; |
137 |
|
1068 |
newypos = ypos + cy - yres; |
138 |
|
|
|
139 |
|
|
/* For every pixel in destination bitmap, find its position in source bitmap, |
140 |
|
|
and set the pixel with the value in source bitmap. */ |
141 |
✓✓ |
211263 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
142 |
|
|
{ |
143 |
✓✓ |
210195 |
if (clip -> gx_rectangle_left & 1) |
144 |
|
|
{ |
145 |
|
109158 |
putmask = 0x0f; |
146 |
|
|
} |
147 |
|
|
else |
148 |
|
|
{ |
149 |
|
101037 |
putmask = 0xf0; |
150 |
|
|
} |
151 |
|
210195 |
put = putrow; |
152 |
|
|
|
153 |
✓✓ |
47481279 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
154 |
|
|
{ |
155 |
|
47271084 |
xx = GX_FIXED_VAL_TO_INT((x - xres) * cosv + (y - yres) * sinv) + cx; |
156 |
|
47271084 |
yy = GX_FIXED_VAL_TO_INT((y - yres) * cosv - (x - xres) * sinv) + cy; |
157 |
|
|
|
158 |
✓✓✓✓
✓✓ |
47271084 |
if ((xx >= 0) && (xx < pixelmap -> gx_pixelmap_width) && |
159 |
✓✓ |
35086005 |
(yy >= 0) && (yy < pixelmap -> gx_pixelmap_height)) |
160 |
|
|
{ |
161 |
|
26972906 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
162 |
|
26972906 |
get += yy * getstride; |
163 |
|
26972906 |
get += xx >> 1; |
164 |
|
|
|
165 |
✓✓ |
26972906 |
if (xx & 1) |
166 |
|
|
{ |
167 |
|
13496587 |
color = *get & 0x0f; |
168 |
|
|
} |
169 |
|
|
else |
170 |
|
|
{ |
171 |
|
13476319 |
color = (*get & 0xf0) >> 4; |
172 |
|
|
} |
173 |
|
26972906 |
color |= (GX_UBYTE)(color << 4); |
174 |
|
|
|
175 |
|
26972906 |
*put &= (GX_UBYTE)(~putmask); |
176 |
|
26972906 |
*put |= color & putmask; |
177 |
|
|
} |
178 |
|
|
|
179 |
|
47271084 |
putmask >>= 4; |
180 |
✓✓ |
47271084 |
if (putmask == 0) |
181 |
|
|
{ |
182 |
|
23639588 |
put++; |
183 |
|
23639588 |
putmask = 0xf0; |
184 |
|
|
} |
185 |
|
|
} |
186 |
|
210195 |
putrow += putstride; |
187 |
|
|
} |
188 |
|
1068 |
} |
189 |
|
|
|
190 |
|
|
/**************************************************************************/ |
191 |
|
|
/* */ |
192 |
|
|
/* FUNCTION RELEASE */ |
193 |
|
|
/* */ |
194 |
|
|
/* _gx_display_driver_4bpp_pixelmap_transparent_rotate PORTABLE C */ |
195 |
|
|
/* 6.1.10 */ |
196 |
|
|
/* AUTHOR */ |
197 |
|
|
/* */ |
198 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
199 |
|
|
/* */ |
200 |
|
|
/* DESCRIPTION */ |
201 |
|
|
/* */ |
202 |
|
|
/* Internal helper function that rotate an uncompressed pixelmap */ |
203 |
|
|
/* with transparent info. */ |
204 |
|
|
/* */ |
205 |
|
|
/* INPUT */ |
206 |
|
|
/* */ |
207 |
|
|
/* context Drawing context */ |
208 |
|
|
/* xpos x-coord of top-left draw point*/ |
209 |
|
|
/* ypos y-coord of top-left draw point*/ |
210 |
|
|
/* pixelmap Pointer to GX_PIXELMAP struct */ |
211 |
|
|
/* angle The angle to rotate */ |
212 |
|
|
/* rot_cx x-coord of rotate center */ |
213 |
|
|
/* rot_cy y-coord of rotate center */ |
214 |
|
|
/* */ |
215 |
|
|
/* OUTPUT */ |
216 |
|
|
/* */ |
217 |
|
|
/* status Completion status */ |
218 |
|
|
/* */ |
219 |
|
|
/* CALLS */ |
220 |
|
|
/* */ |
221 |
|
|
/* _gx_utility_math_cos Compute the cosine value */ |
222 |
|
|
/* _gx_utility_math_sin Compute the sine value */ |
223 |
|
|
/* */ |
224 |
|
|
/* CALLED BY */ |
225 |
|
|
/* */ |
226 |
|
|
/* _gx_display_driver_4bpp_pixelmap_rotate */ |
227 |
|
|
/* */ |
228 |
|
|
/* RELEASE HISTORY */ |
229 |
|
|
/* */ |
230 |
|
|
/* DATE NAME DESCRIPTION */ |
231 |
|
|
/* */ |
232 |
|
|
/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
233 |
|
|
/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
234 |
|
|
/* resulting in version 6.1 */ |
235 |
|
|
/* 01-31-2022 Ting Zhu Modified comment(s), */ |
236 |
|
|
/* corrected logic, */ |
237 |
|
|
/* resulting in version 6.1.10 */ |
238 |
|
|
/* */ |
239 |
|
|
/**************************************************************************/ |
240 |
|
712 |
static VOID _gx_display_driver_4bpp_pixelmap_transparent_rotate(GX_DRAW_CONTEXT *context, INT xpos, INT ypos, GX_PIXELMAP *pixelmap, |
241 |
|
|
INT angle, INT cx, INT cy) |
242 |
|
|
{ |
243 |
|
|
GX_UBYTE *putrow; |
244 |
|
|
GX_UBYTE *put; |
245 |
|
|
GX_UBYTE *get; |
246 |
|
|
GX_UBYTE *getaux; |
247 |
|
|
GX_UBYTE putmask; |
248 |
|
|
GX_UBYTE transmask; |
249 |
|
|
GX_UBYTE pixel; |
250 |
|
|
INT putstride; |
251 |
|
|
INT getauxstride; |
252 |
|
|
INT getstride; |
253 |
|
|
INT srcxres; |
254 |
|
|
INT srcyres; |
255 |
|
|
INT cosv; |
256 |
|
|
INT sinv; |
257 |
|
|
INT idxminx; |
258 |
|
|
INT idxmaxx; |
259 |
|
|
INT idxmaxy; |
260 |
|
712 |
INT mx[] = {-1, 1, 1, -1}; |
261 |
|
712 |
INT my[] = {1, 1, -1, -1}; |
262 |
|
|
INT xres; |
263 |
|
|
INT yres; |
264 |
|
|
INT x; |
265 |
|
|
INT y; |
266 |
|
|
INT xx; |
267 |
|
|
INT yy; |
268 |
|
|
GX_RECTANGLE *clip; |
269 |
|
|
INT newxpos; |
270 |
|
|
INT newypos; |
271 |
|
|
|
272 |
|
712 |
clip = context -> gx_draw_context_clip; |
273 |
|
712 |
putstride = (context -> gx_draw_context_pitch + 1) >> 1; |
274 |
|
712 |
getstride = (pixelmap -> gx_pixelmap_width + 1) >> 1; |
275 |
|
712 |
getauxstride = (pixelmap -> gx_pixelmap_width + 7) >> 3; |
276 |
|
|
|
277 |
|
|
/* Set transparent color. */ |
278 |
|
712 |
idxminx = (angle / 90) & 0x3; |
279 |
|
712 |
idxmaxx = (idxminx + 2) & 0x3; |
280 |
|
712 |
idxmaxy = (idxminx + 1) & 0x3; |
281 |
|
|
|
282 |
|
|
/* Calculate the source x and y center. */ |
283 |
|
712 |
srcxres = pixelmap -> gx_pixelmap_width >> 1; |
284 |
|
712 |
srcyres = pixelmap -> gx_pixelmap_height >> 1; |
285 |
|
|
|
286 |
|
712 |
cosv = _gx_utility_math_cos(GX_FIXED_VAL_MAKE(angle)); |
287 |
|
712 |
sinv = _gx_utility_math_sin(GX_FIXED_VAL_MAKE(angle)); |
288 |
|
|
|
289 |
|
712 |
xres = GX_FIXED_VAL_TO_INT((mx[idxmaxx] * (srcxres + 2) * cosv - my[idxmaxx] * (srcyres + 2) * sinv)); |
290 |
|
712 |
yres = GX_FIXED_VAL_TO_INT((my[idxmaxy] * (srcyres + 2) * cosv + mx[idxmaxy] * (srcxres + 2) * sinv)); |
291 |
|
|
|
292 |
|
712 |
putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
293 |
|
712 |
putrow += clip -> gx_rectangle_top * putstride; |
294 |
|
712 |
putrow += clip -> gx_rectangle_left >> 1; |
295 |
|
|
|
296 |
|
|
/* Calculate the new rotation axis. */ |
297 |
|
712 |
x = (cx - srcxres) * cosv - (cy - srcyres) * sinv; |
298 |
|
712 |
y = (cy - srcyres) * cosv + (cx - srcxres) * sinv; |
299 |
|
|
|
300 |
|
712 |
xres = GX_FIXED_VAL_TO_INT(x) + xres; |
301 |
|
712 |
yres = GX_FIXED_VAL_TO_INT(y) + yres; |
302 |
|
|
|
303 |
|
712 |
newxpos = xpos + cx - xres; |
304 |
|
712 |
newypos = ypos + cy - yres; |
305 |
|
|
|
306 |
|
|
/* For every pixel in destination bitmap, find its position in source bitmap, |
307 |
|
|
and set the pixel with the value in source bitmap. */ |
308 |
✓✓ |
167899 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
309 |
|
|
{ |
310 |
|
167187 |
put = putrow; |
311 |
✓✓ |
167187 |
if (clip -> gx_rectangle_left & 1) |
312 |
|
|
{ |
313 |
|
92123 |
putmask = 0x0f; |
314 |
|
|
} |
315 |
|
|
else |
316 |
|
|
{ |
317 |
|
75064 |
putmask = 0xf0; |
318 |
|
|
} |
319 |
|
|
|
320 |
✓✓ |
48499009 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
321 |
|
|
{ |
322 |
|
48331822 |
xx = GX_FIXED_VAL_TO_INT((x - xres) * cosv + (y - yres) * sinv) + cx; |
323 |
|
48331822 |
yy = GX_FIXED_VAL_TO_INT((y - yres) * cosv - (x - xres) * sinv) + cy; |
324 |
|
|
|
325 |
✓✓✓✓
✓✓ |
48331822 |
if ((xx >= 0) && (xx < pixelmap -> gx_pixelmap_width) && |
326 |
✓✓ |
32737301 |
(yy >= 0) && (yy < pixelmap -> gx_pixelmap_height)) |
327 |
|
|
{ |
328 |
|
28998345 |
getaux = (GX_UBYTE *)pixelmap -> gx_pixelmap_aux_data; |
329 |
|
28998345 |
getaux += yy * getauxstride; |
330 |
|
28998345 |
getaux += xx >> 3; |
331 |
|
|
|
332 |
|
28998345 |
transmask = (GX_UBYTE)(0x80 >> (xx & 0x07)); |
333 |
✓✓ |
28998345 |
if (!(transmask & (*getaux))) |
334 |
|
|
{ |
335 |
|
20386958 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
336 |
|
20386958 |
get += yy * getstride; |
337 |
|
20386958 |
get += xx >> 1; |
338 |
|
|
|
339 |
✓✓ |
20386958 |
if (xx & 1) |
340 |
|
|
{ |
341 |
|
10190126 |
pixel = *get & 0x0f; |
342 |
|
|
} |
343 |
|
|
else |
344 |
|
|
{ |
345 |
|
10196832 |
pixel = *get >> 4; |
346 |
|
|
} |
347 |
|
20386958 |
pixel |= (GX_UBYTE)(pixel << 4); |
348 |
|
|
|
349 |
|
20386958 |
*put &= (GX_UBYTE)(~putmask); |
350 |
|
20386958 |
*put |= pixel & putmask; |
351 |
|
|
} |
352 |
|
|
} |
353 |
|
|
|
354 |
|
48331822 |
putmask >>= 4; |
355 |
✓✓ |
48331822 |
if (putmask == 0) |
356 |
|
|
{ |
357 |
|
24170623 |
put++; |
358 |
|
24170623 |
putmask = 0xf0; |
359 |
|
|
} |
360 |
|
|
} |
361 |
|
167187 |
putrow += putstride; |
362 |
|
|
} |
363 |
|
712 |
} |
364 |
|
|
|
365 |
|
|
/**************************************************************************/ |
366 |
|
|
/* */ |
367 |
|
|
/* FUNCTION RELEASE */ |
368 |
|
|
/* */ |
369 |
|
|
/* _gx_display_driver_4bpp_pixelmap_simple_rotate PORTABLE C */ |
370 |
|
|
/* 6.1.7 */ |
371 |
|
|
/* AUTHOR */ |
372 |
|
|
/* */ |
373 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
374 |
|
|
/* */ |
375 |
|
|
/* DESCRIPTION */ |
376 |
|
|
/* */ |
377 |
|
|
/* Internal help function that hangles 90, 180 and 270 degree pixelmap */ |
378 |
|
|
/* rotation. */ |
379 |
|
|
/* */ |
380 |
|
|
/* INPUT */ |
381 |
|
|
/* */ |
382 |
|
|
/* context Drawing context */ |
383 |
|
|
/* xpos x-coord of top-left draw point*/ |
384 |
|
|
/* ypos y-coord of top-left draw point*/ |
385 |
|
|
/* pixelmap Pointer to GX_PIXELMAP struct */ |
386 |
|
|
/* angle The angle to rotate */ |
387 |
|
|
/* rot_cx x-coord of rotate center */ |
388 |
|
|
/* rot_cy y-coord of rotate center */ |
389 |
|
|
/* */ |
390 |
|
|
/* OUTPUT */ |
391 |
|
|
/* */ |
392 |
|
|
/* status Completion status */ |
393 |
|
|
/* */ |
394 |
|
|
/* CALLS */ |
395 |
|
|
/* */ |
396 |
|
|
/* None */ |
397 |
|
|
/* */ |
398 |
|
|
/* CALLED BY */ |
399 |
|
|
/* */ |
400 |
|
|
/* _gx_display_driver_4bpp_pixelmap_rotate */ |
401 |
|
|
/* */ |
402 |
|
|
/* RELEASE HISTORY */ |
403 |
|
|
/* */ |
404 |
|
|
/* DATE NAME DESCRIPTION */ |
405 |
|
|
/* */ |
406 |
|
|
/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
407 |
|
|
/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
408 |
|
|
/* resulting in version 6.1 */ |
409 |
|
|
/* 06-02-2021 Kenneth Maxwell Modified comment(s), */ |
410 |
|
|
/* removed unused variable */ |
411 |
|
|
/* assignment, */ |
412 |
|
|
/* resulting in version 6.1.7 */ |
413 |
|
|
/* */ |
414 |
|
|
/**************************************************************************/ |
415 |
|
15 |
static VOID _gx_display_driver_4bpp_pixelmap_simple_rotate(GX_DRAW_CONTEXT *context, INT xpos, INT ypos, GX_PIXELMAP *pixelmap, |
416 |
|
|
INT angle, INT cx, INT cy) |
417 |
|
|
{ |
418 |
|
|
GX_UBYTE *putrow; |
419 |
|
|
GX_UBYTE *put; |
420 |
|
|
GX_UBYTE putmask; |
421 |
|
|
GX_UBYTE *get; |
422 |
|
|
INT putstride; |
423 |
|
|
INT width; |
424 |
|
|
INT height; |
425 |
|
|
INT x; |
426 |
|
|
INT y; |
427 |
|
|
GX_RECTANGLE *clip; |
428 |
|
|
INT newxpos; |
429 |
|
|
INT newypos; |
430 |
|
|
GX_UBYTE color; |
431 |
|
|
|
432 |
|
15 |
clip = context -> gx_draw_context_clip; |
433 |
|
15 |
putstride = (context -> gx_draw_context_pitch + 1) >> 1; |
434 |
|
|
|
435 |
|
15 |
putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
436 |
|
15 |
putrow += clip -> gx_rectangle_top * putstride; |
437 |
|
15 |
putrow += clip -> gx_rectangle_left >> 1; |
438 |
|
|
|
439 |
✓✓ |
15 |
if (angle == 90) |
440 |
|
|
{ |
441 |
|
5 |
width = pixelmap -> gx_pixelmap_height; |
442 |
|
5 |
height = (pixelmap -> gx_pixelmap_width + 1) >> 1; |
443 |
|
|
|
444 |
|
5 |
newxpos = xpos + cx - (width - 1 - cy); |
445 |
|
5 |
newypos = ypos + cy - cx; |
446 |
|
|
|
447 |
✓✓ |
1136 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
448 |
|
|
{ |
449 |
✓✓ |
1131 |
if (clip -> gx_rectangle_left & 1) |
450 |
|
|
{ |
451 |
|
651 |
putmask = 0x0f; |
452 |
|
|
} |
453 |
|
|
else |
454 |
|
|
{ |
455 |
|
480 |
putmask = 0xf0; |
456 |
|
|
} |
457 |
|
|
|
458 |
|
1131 |
put = putrow; |
459 |
|
|
|
460 |
✓✓ |
147777 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
461 |
|
|
{ |
462 |
|
146646 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
463 |
|
146646 |
get += (width - 1 - x) * height; |
464 |
|
146646 |
get += y >> 1; |
465 |
|
|
|
466 |
✓✓ |
146646 |
if (y & 1) |
467 |
|
|
{ |
468 |
|
73386 |
color = *get & 0x0f; |
469 |
|
|
} |
470 |
|
|
else |
471 |
|
|
{ |
472 |
|
73260 |
color = (*get & 0xf0) >> 4; |
473 |
|
|
} |
474 |
|
146646 |
color |= (GX_UBYTE)(color << 4); |
475 |
|
|
|
476 |
|
146646 |
*put &= (GX_UBYTE)(~putmask); |
477 |
|
146646 |
*put |= color & putmask; |
478 |
|
|
|
479 |
|
146646 |
putmask >>= 4; |
480 |
✓✓ |
146646 |
if (putmask == 0) |
481 |
|
|
{ |
482 |
|
73413 |
putmask = 0xf0; |
483 |
|
73413 |
put++; |
484 |
|
|
} |
485 |
|
|
} |
486 |
|
|
|
487 |
|
1131 |
putrow += putstride; |
488 |
|
|
} |
489 |
|
|
} |
490 |
✓✓ |
10 |
else if (angle == 180) |
491 |
|
|
{ |
492 |
|
|
|
493 |
|
5 |
width = pixelmap -> gx_pixelmap_width; |
494 |
|
5 |
height = pixelmap -> gx_pixelmap_height; |
495 |
|
|
|
496 |
|
5 |
newxpos = xpos + cx - (width - 1 - cx); |
497 |
|
5 |
newypos = ypos + cy - (height - 1 - cy); |
498 |
|
|
|
499 |
✓✓ |
586 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
500 |
|
|
{ |
501 |
✓✓ |
581 |
if (clip -> gx_rectangle_left & 1) |
502 |
|
|
{ |
503 |
|
455 |
putmask = 0x0f; |
504 |
|
|
} |
505 |
|
|
else |
506 |
|
|
{ |
507 |
|
126 |
putmask = 0xf0; |
508 |
|
|
} |
509 |
|
581 |
put = putrow; |
510 |
|
|
|
511 |
✓✓ |
129660 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
512 |
|
|
{ |
513 |
|
129079 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
514 |
|
129079 |
get += (height - 1 - y) * ((width + 1) >> 1); |
515 |
|
129079 |
get += (width - 1 - x) >> 1; |
516 |
|
|
|
517 |
✓✓ |
129079 |
if ((pixelmap -> gx_pixelmap_width - 1 - x) & 1) |
518 |
|
|
{ |
519 |
|
64593 |
color = *get & 0x0f; |
520 |
|
|
} |
521 |
|
|
else |
522 |
|
|
{ |
523 |
|
64486 |
color = (*get & 0xf0) >> 4; |
524 |
|
|
} |
525 |
|
129079 |
color |= (GX_UBYTE)(color << 4); |
526 |
|
129079 |
*put &= (GX_UBYTE)(~putmask); |
527 |
|
129079 |
*put |= color & putmask; |
528 |
|
|
|
529 |
|
129079 |
putmask >>= 4; |
530 |
✓✓ |
129079 |
if (putmask == 0) |
531 |
|
|
{ |
532 |
|
64593 |
putmask = 0xf0; |
533 |
|
64593 |
put++; |
534 |
|
|
} |
535 |
|
|
} |
536 |
|
581 |
putrow += putstride; |
537 |
|
|
} |
538 |
|
|
} |
539 |
|
|
else |
540 |
|
|
{ |
541 |
|
5 |
height = pixelmap -> gx_pixelmap_width; |
542 |
|
|
|
543 |
|
5 |
newxpos = xpos + cx - cy; |
544 |
|
5 |
newypos = ypos + cx - (height - 1 - cy); |
545 |
|
|
|
546 |
✓✓ |
928 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
547 |
|
|
{ |
548 |
✓✓ |
923 |
if (clip -> gx_rectangle_left & 1) |
549 |
|
|
{ |
550 |
|
576 |
putmask = 0x0f; |
551 |
|
|
} |
552 |
|
|
else |
553 |
|
|
{ |
554 |
|
347 |
putmask = 0xf0; |
555 |
|
|
} |
556 |
|
923 |
put = putrow; |
557 |
|
|
|
558 |
✓✓ |
119429 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
559 |
|
|
{ |
560 |
|
118506 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
561 |
|
118506 |
get += x * ((height + 1) >> 1); |
562 |
|
118506 |
get += (height - 1 - y) >> 1; |
563 |
|
|
|
564 |
✓✓ |
118506 |
if ((height - 1 - y) & 1) |
565 |
|
|
{ |
566 |
|
59316 |
color = *get & 0x0f; |
567 |
|
|
} |
568 |
|
|
else |
569 |
|
|
{ |
570 |
|
59190 |
color = (*get & 0xf0) >> 4; |
571 |
|
|
} |
572 |
|
118506 |
color |= (GX_UBYTE)(color << 4); |
573 |
|
|
|
574 |
|
118506 |
*put &= (GX_UBYTE)(~putmask); |
575 |
|
118506 |
*put |= color & putmask; |
576 |
|
|
|
577 |
|
118506 |
putmask >>= 4; |
578 |
✓✓ |
118506 |
if (putmask == 0) |
579 |
|
|
{ |
580 |
|
59301 |
putmask = 0xf0; |
581 |
|
59301 |
put++; |
582 |
|
|
} |
583 |
|
|
} |
584 |
|
|
|
585 |
|
923 |
putrow += putstride; |
586 |
|
|
} |
587 |
|
|
} |
588 |
|
15 |
} |
589 |
|
|
/**************************************************************************/ |
590 |
|
|
/* */ |
591 |
|
|
/* FUNCTION RELEASE */ |
592 |
|
|
/* */ |
593 |
|
|
/* _gx_display_driver_4bpp_pixelmap_simple_transparent_rotate */ |
594 |
|
|
/* PORTABLE C */ |
595 |
|
|
/* 6.1.7 */ |
596 |
|
|
/* AUTHOR */ |
597 |
|
|
/* */ |
598 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
599 |
|
|
/* */ |
600 |
|
|
/* DESCRIPTION */ |
601 |
|
|
/* */ |
602 |
|
|
/* Internal help function that hangles 90, 180 and 270 degree pixelmap */ |
603 |
|
|
/* rotation. */ |
604 |
|
|
/* */ |
605 |
|
|
/* INPUT */ |
606 |
|
|
/* */ |
607 |
|
|
/* context Drawing context */ |
608 |
|
|
/* xpos x-coord of top-left draw point*/ |
609 |
|
|
/* ypos y-coord of top-left draw point*/ |
610 |
|
|
/* pixelmap Pointer to GX_PIXELMAP struct */ |
611 |
|
|
/* angle The angle to rotate */ |
612 |
|
|
/* rot_cx x-coord of rotate center */ |
613 |
|
|
/* rot_cy y-coord of rotate center */ |
614 |
|
|
/* */ |
615 |
|
|
/* OUTPUT */ |
616 |
|
|
/* */ |
617 |
|
|
/* status Completion status */ |
618 |
|
|
/* */ |
619 |
|
|
/* CALLS */ |
620 |
|
|
/* */ |
621 |
|
|
/* None */ |
622 |
|
|
/* */ |
623 |
|
|
/* CALLED BY */ |
624 |
|
|
/* */ |
625 |
|
|
/* _gx_display_driver_4bpp_pixelmap_rotate */ |
626 |
|
|
/* */ |
627 |
|
|
/* RELEASE HISTORY */ |
628 |
|
|
/* */ |
629 |
|
|
/* DATE NAME DESCRIPTION */ |
630 |
|
|
/* */ |
631 |
|
|
/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
632 |
|
|
/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
633 |
|
|
/* resulting in version 6.1 */ |
634 |
|
|
/* 06-02-2021 Kenneth Maxwell Modified comment(s), */ |
635 |
|
|
/* removed unused variable */ |
636 |
|
|
/* assignment, */ |
637 |
|
|
/* resulting in version 6.1.7 */ |
638 |
|
|
/* */ |
639 |
|
|
/**************************************************************************/ |
640 |
|
13 |
static VOID _gx_display_driver_4bpp_pixelmap_simple_transparent_rotate(GX_DRAW_CONTEXT *context, INT xpos, INT ypos, GX_PIXELMAP *pixelmap, |
641 |
|
|
INT angle, INT cx, INT cy) |
642 |
|
|
{ |
643 |
|
|
GX_UBYTE *get; |
644 |
|
|
GX_UBYTE *gettransmask; |
645 |
|
|
INT width; |
646 |
|
|
INT height; |
647 |
|
|
INT x; |
648 |
|
|
INT y; |
649 |
|
|
GX_RECTANGLE *clip; |
650 |
|
|
INT newxpos; |
651 |
|
|
INT newypos; |
652 |
|
|
GX_UBYTE *put; |
653 |
|
|
GX_UBYTE *putrow; |
654 |
|
|
INT putstride; |
655 |
|
|
GX_UBYTE putmask; |
656 |
|
|
INT getstride; |
657 |
|
|
INT getauxstride; |
658 |
|
|
GX_UBYTE transmask; |
659 |
|
|
GX_UBYTE pixel; |
660 |
|
|
|
661 |
✓✓ |
13 |
if (pixelmap -> gx_pixelmap_aux_data == GX_NULL) |
662 |
|
|
{ |
663 |
|
|
/* 4bpp transparent pixelmap must have aux data to store the transparent mask info. */ |
664 |
|
1 |
return; |
665 |
|
|
} |
666 |
|
|
|
667 |
|
12 |
clip = context -> gx_draw_context_clip; |
668 |
|
|
/* 4bpp pixelmap is stored as half byte. And it's transparent info is stored in aux data by one bit */ |
669 |
|
12 |
getstride = (pixelmap -> gx_pixelmap_width + 1) >> 1; |
670 |
|
12 |
getauxstride = (pixelmap -> gx_pixelmap_width + 7) >> 3; |
671 |
|
12 |
putstride = (context -> gx_draw_context_pitch + 1) >> 1; |
672 |
|
12 |
putrow = (GX_UBYTE *)context -> gx_draw_context_memory; |
673 |
|
12 |
putrow += clip -> gx_rectangle_top * putstride; |
674 |
|
12 |
putrow += clip -> gx_rectangle_left >> 1; |
675 |
|
|
|
676 |
|
12 |
clip = context -> gx_draw_context_clip; |
677 |
|
|
|
678 |
✓✓ |
12 |
if (angle == 90) |
679 |
|
|
{ |
680 |
|
4 |
width = pixelmap -> gx_pixelmap_height; |
681 |
|
|
|
682 |
|
4 |
newxpos = xpos + cx - (width - 1 - cy); |
683 |
|
4 |
newypos = ypos + cy - cx; |
684 |
|
|
|
685 |
✓✓ |
784 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
686 |
|
|
{ |
687 |
|
780 |
put = putrow; |
688 |
✓✓ |
780 |
if (clip -> gx_rectangle_left & 1) |
689 |
|
|
{ |
690 |
|
195 |
putmask = 0x0f; |
691 |
|
|
} |
692 |
|
|
else |
693 |
|
|
{ |
694 |
|
585 |
putmask = 0xf0; |
695 |
|
|
} |
696 |
|
|
|
697 |
✓✓ |
199875 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
698 |
|
|
{ |
699 |
|
199095 |
gettransmask = (GX_UBYTE *)pixelmap -> gx_pixelmap_aux_data; |
700 |
|
199095 |
gettransmask += (width - 1 - x) * getauxstride; |
701 |
|
199095 |
gettransmask += y >> 3; |
702 |
|
|
|
703 |
|
199095 |
transmask = (GX_UBYTE)(0x80 >> (y & 0x07)); |
704 |
|
|
|
705 |
|
|
/* if not transparent, draw pixel. else skip. */ |
706 |
✓✓ |
199095 |
if (!(transmask & (*gettransmask))) |
707 |
|
|
{ |
708 |
|
141237 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
709 |
|
141237 |
get += (width - 1 - x) * getstride; |
710 |
|
141237 |
get += y >> 1; |
711 |
|
|
|
712 |
✓✓ |
141237 |
if (y & 1) |
713 |
|
|
{ |
714 |
|
70595 |
pixel = *get & 0x0f; |
715 |
|
|
} |
716 |
|
|
else |
717 |
|
|
{ |
718 |
|
70642 |
pixel = *get >> 4; |
719 |
|
|
} |
720 |
|
141237 |
pixel |= (GX_UBYTE)(pixel << 4); |
721 |
|
|
|
722 |
|
141237 |
*put &= (GX_UBYTE)(~putmask); |
723 |
|
141237 |
*put |= pixel & putmask; |
724 |
|
|
} |
725 |
|
|
|
726 |
|
199095 |
putmask >>= 4; |
727 |
✓✓ |
199095 |
if (putmask == 0) |
728 |
|
|
{ |
729 |
|
99450 |
putmask = 0xf0; |
730 |
|
99450 |
put++; |
731 |
|
|
} |
732 |
|
|
} |
733 |
|
780 |
putrow += putstride; |
734 |
|
|
} |
735 |
|
|
} |
736 |
✓✓ |
8 |
else if (angle == 180) |
737 |
|
|
{ |
738 |
|
4 |
width = pixelmap -> gx_pixelmap_width; |
739 |
|
4 |
height = pixelmap -> gx_pixelmap_height; |
740 |
|
|
|
741 |
|
4 |
newxpos = xpos + cx - (width - 1 - cx); |
742 |
|
4 |
newypos = ypos + cy - (height - 1 - cy); |
743 |
|
|
|
744 |
✓✓ |
796 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
745 |
|
|
{ |
746 |
|
792 |
put = putrow; |
747 |
✓✓ |
792 |
if (clip -> gx_rectangle_left & 1) |
748 |
|
|
{ |
749 |
|
244 |
putmask = 0x0f; |
750 |
|
|
} |
751 |
|
|
else |
752 |
|
|
{ |
753 |
|
548 |
putmask = 0xf0; |
754 |
|
|
} |
755 |
✓✓ |
155232 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
756 |
|
|
{ |
757 |
|
154440 |
gettransmask = (GX_UBYTE *)pixelmap -> gx_pixelmap_aux_data; |
758 |
|
154440 |
gettransmask += (height - 1 - y) * getauxstride; |
759 |
|
154440 |
gettransmask += (width - 1 - x) >> 3; |
760 |
|
|
|
761 |
|
|
/* Calculate and go ot the transmask bit.*/ |
762 |
|
154440 |
transmask = (GX_UBYTE)(0x80 >> ((width - 1 - x) & 0x07)); |
763 |
|
|
/* if not transparent, draw pixel. else skip. */ |
764 |
✓✓ |
154440 |
if (!(transmask & (*gettransmask))) |
765 |
|
|
{ |
766 |
|
110800 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
767 |
|
110800 |
get += (height - 1 - y) * getstride; |
768 |
|
110800 |
get += (width - 1 - x) >> 1; |
769 |
|
|
|
770 |
✓✓ |
110800 |
if ((width - 1 - x) & 1) |
771 |
|
|
{ |
772 |
|
55384 |
pixel = *get & 0x0f; |
773 |
|
|
} |
774 |
|
|
else |
775 |
|
|
{ |
776 |
|
55416 |
pixel = *get >> 4; |
777 |
|
|
} |
778 |
|
110800 |
pixel |= (GX_UBYTE)(pixel << 4); |
779 |
|
|
|
780 |
|
110800 |
*put &= (GX_UBYTE)(~putmask); |
781 |
|
110800 |
*put |= pixel & putmask; |
782 |
|
|
} |
783 |
|
|
|
784 |
|
154440 |
putmask >>= 4; |
785 |
✓✓ |
154440 |
if (putmask == 0) |
786 |
|
|
{ |
787 |
|
77068 |
putmask = 0xf0; |
788 |
|
77068 |
put++; |
789 |
|
|
} |
790 |
|
|
} |
791 |
|
792 |
putrow += putstride; |
792 |
|
|
} |
793 |
|
|
} |
794 |
|
|
else |
795 |
|
|
{ |
796 |
|
4 |
height = pixelmap -> gx_pixelmap_width; |
797 |
|
|
|
798 |
|
4 |
newxpos = xpos + cx - cy; |
799 |
|
4 |
newypos = ypos + cx - (height - 1 - cy); |
800 |
|
|
|
801 |
✓✓ |
626 |
for (y = clip -> gx_rectangle_top - newypos; y <= clip -> gx_rectangle_bottom - newypos; y++) |
802 |
|
|
{ |
803 |
|
622 |
put = putrow; |
804 |
✓✓ |
622 |
if (clip -> gx_rectangle_left & 1) |
805 |
|
|
{ |
806 |
|
195 |
putmask = 0x0f; |
807 |
|
|
} |
808 |
|
|
else |
809 |
|
|
{ |
810 |
|
427 |
putmask = 0xf0; |
811 |
|
|
} |
812 |
|
|
|
813 |
✓✓ |
166696 |
for (x = clip -> gx_rectangle_left - newxpos; x <= clip -> gx_rectangle_right - newxpos; x++) |
814 |
|
|
{ |
815 |
|
166074 |
gettransmask = (GX_UBYTE *)pixelmap -> gx_pixelmap_aux_data; |
816 |
|
166074 |
gettransmask += x * getauxstride; |
817 |
|
166074 |
gettransmask += (height - 1 - y) >> 3; |
818 |
|
|
|
819 |
|
166074 |
transmask = (GX_UBYTE)(0x80 >> ((height - 1 - y) & 0x07)); |
820 |
|
|
/* if not transparent, draw pixel. else skip. */ |
821 |
✓✓ |
166074 |
if (!(transmask & (*gettransmask))) |
822 |
|
|
{ |
823 |
|
113735 |
get = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
824 |
|
113735 |
get += x * getstride; |
825 |
|
113735 |
get += (height - 1 - y) >> 1; |
826 |
|
|
|
827 |
✓✓ |
113735 |
if ((height - 1 - y) & 1) |
828 |
|
|
{ |
829 |
|
56789 |
pixel = *get & 0x0f; |
830 |
|
|
} |
831 |
|
|
else |
832 |
|
|
{ |
833 |
|
56946 |
pixel = *get >> 4; |
834 |
|
|
} |
835 |
|
113735 |
pixel |= (GX_UBYTE)(pixel << 4); |
836 |
|
|
|
837 |
|
113735 |
*put &= (GX_UBYTE)(~putmask); |
838 |
|
113735 |
*put |= pixel & putmask; |
839 |
|
|
} |
840 |
|
|
|
841 |
|
166074 |
putmask >>= 4; |
842 |
✓✓ |
166074 |
if (putmask == 0) |
843 |
|
|
{ |
844 |
|
82921 |
putmask = 0xf0; |
845 |
|
82921 |
put++; |
846 |
|
|
} |
847 |
|
|
} |
848 |
|
622 |
putrow += putstride; |
849 |
|
|
} |
850 |
|
|
} |
851 |
|
|
} |
852 |
|
|
|
853 |
|
|
/**************************************************************************/ |
854 |
|
|
/* */ |
855 |
|
|
/* FUNCTION RELEASE */ |
856 |
|
|
/* */ |
857 |
|
|
/* _gx_display_driver_4bpp_pixelmap_rotate PORTABLE C */ |
858 |
|
|
/* 6.1 */ |
859 |
|
|
/* AUTHOR */ |
860 |
|
|
/* */ |
861 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
862 |
|
|
/* */ |
863 |
|
|
/* DESCRIPTION */ |
864 |
|
|
/* */ |
865 |
|
|
/* This service rotate a pixelmap directly to canvas memory. */ |
866 |
|
|
/* */ |
867 |
|
|
/* INPUT */ |
868 |
|
|
/* */ |
869 |
|
|
/* context Drawing context */ |
870 |
|
|
/* xpos x-coord of top-left draw point*/ |
871 |
|
|
/* ypos y-coord of top-left draw point*/ |
872 |
|
|
/* pixelmap Pointer to GX_PIXELMAP struct */ |
873 |
|
|
/* angle The angle to rotate */ |
874 |
|
|
/* rot_cx x-coord of rotating center. */ |
875 |
|
|
/* rot_cy y-coord of rotationg center. */ |
876 |
|
|
/* */ |
877 |
|
|
/* OUTPUT */ |
878 |
|
|
/* */ |
879 |
|
|
/* status Completion status */ |
880 |
|
|
/* */ |
881 |
|
|
/* CALLS */ |
882 |
|
|
/* */ |
883 |
|
|
/* _gx_display_driver_4bpp_pixelmap_simple_transparent_rotate */ |
884 |
|
|
/* Real pixelmap rotate routine */ |
885 |
|
|
/* _gx_display_driver_4bpp_pixelmap_simple_rotate */ |
886 |
|
|
/* Real pixelmap rotate routine */ |
887 |
|
|
/* _gx_display_driver_4bpp_pixelmap_transparent_rotate */ |
888 |
|
|
/* Real pixelmap rotate routine */ |
889 |
|
|
/* _gx_display_driver_4bpp_pixelmap_raw_rotate */ |
890 |
|
|
/* Real pixelmap rotate routine */ |
891 |
|
|
/* */ |
892 |
|
|
/* CALLED BY */ |
893 |
|
|
/* */ |
894 |
|
|
/* Application Code */ |
895 |
|
|
/* GUIX Internal Code */ |
896 |
|
|
/* */ |
897 |
|
|
/* RELEASE HISTORY */ |
898 |
|
|
/* */ |
899 |
|
|
/* DATE NAME DESCRIPTION */ |
900 |
|
|
/* */ |
901 |
|
|
/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
902 |
|
|
/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
903 |
|
|
/* resulting in version 6.1 */ |
904 |
|
|
/* */ |
905 |
|
|
/**************************************************************************/ |
906 |
|
1808 |
VOID _gx_display_driver_4bpp_pixelmap_rotate(GX_DRAW_CONTEXT *context, INT xpos, INT ypos, GX_PIXELMAP *pixelmap, |
907 |
|
|
INT angle, INT rot_cx, INT rot_cy) |
908 |
|
|
{ |
909 |
✓✓ |
1808 |
if (angle % 90 == 0) |
910 |
|
|
{ |
911 |
|
|
/* Simple angle rotate: 90 degree, 180 degree and 270 degree. */ |
912 |
✓✓ |
28 |
if (pixelmap -> gx_pixelmap_flags & GX_PIXELMAP_TRANSPARENT) |
913 |
|
|
{ |
914 |
|
13 |
_gx_display_driver_4bpp_pixelmap_simple_transparent_rotate(context, xpos, ypos, pixelmap, angle, rot_cx, rot_cy); |
915 |
|
|
} |
916 |
|
|
else |
917 |
|
|
{ |
918 |
|
15 |
_gx_display_driver_4bpp_pixelmap_simple_rotate(context, xpos, ypos, pixelmap, angle, rot_cx, rot_cy); |
919 |
|
|
} |
920 |
|
|
} |
921 |
|
|
else |
922 |
|
|
{ |
923 |
✓✓ |
1780 |
if (pixelmap -> gx_pixelmap_flags & GX_PIXELMAP_TRANSPARENT) |
924 |
|
|
{ |
925 |
|
|
/* no compression or alpha */ |
926 |
|
712 |
_gx_display_driver_4bpp_pixelmap_transparent_rotate(context, xpos, ypos, pixelmap, angle, rot_cx, rot_cy); |
927 |
|
|
} |
928 |
|
|
else |
929 |
|
|
{ |
930 |
|
|
/* no compression or alpha */ |
931 |
|
1068 |
_gx_display_driver_4bpp_pixelmap_raw_rotate(context, xpos, ypos, pixelmap, angle, rot_cx, rot_cy); |
932 |
|
|
} |
933 |
|
|
} |
934 |
|
|
|
935 |
|
1808 |
return; |
936 |
|
|
} |
937 |
|
|
|