FreeRDP
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TestGdiClip.c
1
2#include <freerdp/gdi/gdi.h>
3
4#include <freerdp/gdi/dc.h>
5#include <freerdp/gdi/pen.h>
6#include <freerdp/gdi/region.h>
7#include <freerdp/gdi/bitmap.h>
8
9#include <winpr/crt.h>
10
11#include "line.h"
12#include "brush.h"
13#include "clipping.h"
14
15static int test_gdi_ClipCoords(void)
16{
17 int rc = -1;
18 BOOL draw = 0;
19 HGDI_DC hdc = NULL;
20 HGDI_RGN rgn1 = NULL;
21 HGDI_RGN rgn2 = NULL;
22 HGDI_BITMAP bmp = NULL;
23 const UINT32 format = PIXEL_FORMAT_ARGB32;
24
25 if (!(hdc = gdi_GetDC()))
26 {
27 printf("failed to get gdi device context\n");
28 return -1;
29 }
30
31 hdc->format = format;
32 bmp = gdi_CreateBitmapEx(1024, 768, PIXEL_FORMAT_XRGB32, 0, NULL, NULL);
33 gdi_SelectObject(hdc, (HGDIOBJECT)bmp);
34 gdi_SetNullClipRgn(hdc);
35 rgn1 = gdi_CreateRectRgn(0, 0, 0, 0);
36 rgn2 = gdi_CreateRectRgn(0, 0, 0, 0);
37 rgn1->null = TRUE;
38 rgn2->null = TRUE;
39 /* null clipping region */
40 gdi_SetNullClipRgn(hdc);
41 gdi_SetRgn(rgn1, 20, 20, 100, 100);
42 gdi_SetRgn(rgn2, 20, 20, 100, 100);
43 gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
44
45 if (!gdi_EqualRgn(rgn1, rgn2))
46 goto fail;
47
48 /* region all inside clipping region */
49 gdi_SetClipRgn(hdc, 0, 0, 1024, 768);
50 gdi_SetRgn(rgn1, 20, 20, 100, 100);
51 gdi_SetRgn(rgn2, 20, 20, 100, 100);
52 gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
53
54 if (!gdi_EqualRgn(rgn1, rgn2))
55 goto fail;
56
57 /* region all outside clipping region, on the left */
58 gdi_SetClipRgn(hdc, 300, 300, 100, 100);
59 gdi_SetRgn(rgn1, 20, 20, 100, 100);
60 gdi_SetRgn(rgn2, 0, 0, 0, 0);
61 draw = gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
62
63 if (draw)
64 goto fail;
65
66 /* region all outside clipping region, on the right */
67 gdi_SetClipRgn(hdc, 300, 300, 100, 100);
68 gdi_SetRgn(rgn1, 420, 420, 100, 100);
69 gdi_SetRgn(rgn2, 0, 0, 0, 0);
70 draw = gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
71
72 if (draw)
73 goto fail;
74
75 /* region all outside clipping region, on top */
76 gdi_SetClipRgn(hdc, 300, 300, 100, 100);
77 gdi_SetRgn(rgn1, 300, 20, 100, 100);
78 gdi_SetRgn(rgn2, 0, 0, 0, 0);
79 draw = gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
80
81 if (draw)
82 goto fail;
83
84 /* region all outside clipping region, at the bottom */
85 gdi_SetClipRgn(hdc, 300, 300, 100, 100);
86 gdi_SetRgn(rgn1, 300, 420, 100, 100);
87 gdi_SetRgn(rgn2, 0, 0, 0, 0);
88 draw = gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
89
90 if (draw)
91 goto fail;
92
93 /* left outside, right = clip, top = clip, bottom = clip */
94 gdi_SetClipRgn(hdc, 300, 300, 100, 100);
95 gdi_SetRgn(rgn1, 100, 300, 300, 100);
96 gdi_SetRgn(rgn2, 300, 300, 100, 100);
97 gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
98
99 if (!gdi_EqualRgn(rgn1, rgn2))
100 goto fail;
101
102 /* left outside, right inside, top = clip, bottom = clip */
103 gdi_SetClipRgn(hdc, 300, 300, 100, 100);
104 gdi_SetRgn(rgn1, 100, 300, 250, 100);
105 gdi_SetRgn(rgn2, 300, 300, 50, 100);
106 gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
107
108 if (!gdi_EqualRgn(rgn1, rgn2))
109 goto fail;
110
111 /* left = clip, right outside, top = clip, bottom = clip */
112 gdi_SetClipRgn(hdc, 300, 300, 100, 100);
113 gdi_SetRgn(rgn1, 300, 300, 300, 100);
114 gdi_SetRgn(rgn2, 300, 300, 100, 100);
115 gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
116
117 if (!gdi_EqualRgn(rgn1, rgn2))
118 goto fail;
119
120 /* left inside, right outside, top = clip, bottom = clip */
121 gdi_SetClipRgn(hdc, 300, 300, 100, 100);
122 gdi_SetRgn(rgn1, 350, 300, 200, 100);
123 gdi_SetRgn(rgn2, 350, 300, 50, 100);
124 gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
125
126 if (!gdi_EqualRgn(rgn1, rgn2))
127 goto fail;
128
129 /* top outside, bottom = clip, left = clip, right = clip */
130 gdi_SetClipRgn(hdc, 300, 300, 100, 100);
131 gdi_SetRgn(rgn1, 300, 100, 300, 300);
132 gdi_SetRgn(rgn2, 300, 300, 100, 100);
133 gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
134
135 if (!gdi_EqualRgn(rgn1, rgn2))
136 goto fail;
137
138 /* top = clip, bottom outside, left = clip, right = clip */
139 gdi_SetClipRgn(hdc, 300, 300, 100, 100);
140 gdi_SetRgn(rgn1, 300, 300, 100, 200);
141 gdi_SetRgn(rgn2, 300, 300, 100, 100);
142 gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
143
144 if (!gdi_EqualRgn(rgn1, rgn2))
145 goto fail;
146
147 /* top = clip, bottom = clip, top = clip, bottom = clip */
148 gdi_SetClipRgn(hdc, 300, 300, 100, 100);
149 gdi_SetRgn(rgn1, 300, 300, 100, 100);
150 gdi_SetRgn(rgn2, 300, 300, 100, 100);
151 gdi_ClipCoords(hdc, &(rgn1->x), &(rgn1->y), &(rgn1->w), &(rgn1->h), NULL, NULL);
152
153 if (!gdi_EqualRgn(rgn1, rgn2))
154 goto fail;
155
156 rc = 0;
157fail:
158 gdi_DeleteObject((HGDIOBJECT)rgn1);
159 gdi_DeleteObject((HGDIOBJECT)rgn2);
160 gdi_DeleteObject((HGDIOBJECT)bmp);
161 gdi_DeleteDC(hdc);
162 return rc;
163}
164
165static int test_gdi_InvalidateRegion(void)
166{
167 int rc = -1;
168 HGDI_DC hdc = NULL;
169 HGDI_RGN rgn1 = NULL;
170 HGDI_RGN rgn2 = NULL;
171 HGDI_RGN invalid = NULL;
172 HGDI_BITMAP bmp = NULL;
173 const UINT32 format = PIXEL_FORMAT_XRGB32;
174
175 if (!(hdc = gdi_GetDC()))
176 {
177 printf("failed to get gdi device context\n");
178 return -1;
179 }
180
181 hdc->format = format;
182 bmp = gdi_CreateBitmapEx(1024, 768, PIXEL_FORMAT_XRGB32, 0, NULL, NULL);
183 gdi_SelectObject(hdc, (HGDIOBJECT)bmp);
184 gdi_SetNullClipRgn(hdc);
185 hdc->hwnd = (HGDI_WND)calloc(1, sizeof(GDI_WND));
186 hdc->hwnd->invalid = gdi_CreateRectRgn(0, 0, 0, 0);
187 hdc->hwnd->invalid->null = TRUE;
188 invalid = hdc->hwnd->invalid;
189 hdc->hwnd->count = 16;
190 hdc->hwnd->cinvalid = (HGDI_RGN)calloc(hdc->hwnd->count, sizeof(GDI_RGN));
191 rgn1 = gdi_CreateRectRgn(0, 0, 0, 0);
192 rgn2 = gdi_CreateRectRgn(0, 0, 0, 0);
193 rgn1->null = TRUE;
194 rgn2->null = TRUE;
195 /* no previous invalid region */
196 invalid->null = TRUE;
197 gdi_SetRgn(rgn1, 300, 300, 100, 100);
198 gdi_SetRgn(rgn2, 300, 300, 100, 100);
199 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
200
201 if (!gdi_EqualRgn(invalid, rgn2))
202 goto fail;
203
204 /* region same as invalid region */
205 gdi_SetRgn(invalid, 300, 300, 100, 100);
206 gdi_SetRgn(rgn1, 300, 300, 100, 100);
207 gdi_SetRgn(rgn2, 300, 300, 100, 100);
208 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
209
210 if (!gdi_EqualRgn(invalid, rgn2))
211 goto fail;
212
213 /* left outside */
214 gdi_SetRgn(invalid, 300, 300, 100, 100);
215 gdi_SetRgn(rgn1, 100, 300, 300, 100);
216 gdi_SetRgn(rgn2, 100, 300, 300, 100);
217 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
218
219 if (!gdi_EqualRgn(invalid, rgn2))
220 goto fail;
221
222 /* right outside */
223 gdi_SetRgn(invalid, 300, 300, 100, 100);
224 gdi_SetRgn(rgn1, 300, 300, 300, 100);
225 gdi_SetRgn(rgn2, 300, 300, 300, 100);
226 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
227
228 if (!gdi_EqualRgn(invalid, rgn2))
229 goto fail;
230
231 /* top outside */
232 gdi_SetRgn(invalid, 300, 300, 100, 100);
233 gdi_SetRgn(rgn1, 300, 100, 100, 300);
234 gdi_SetRgn(rgn2, 300, 100, 100, 300);
235 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
236
237 if (!gdi_EqualRgn(invalid, rgn2))
238 goto fail;
239
240 /* bottom outside */
241 gdi_SetRgn(invalid, 300, 300, 100, 100);
242 gdi_SetRgn(rgn1, 300, 300, 100, 300);
243 gdi_SetRgn(rgn2, 300, 300, 100, 300);
244 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
245
246 if (!gdi_EqualRgn(invalid, rgn2))
247 goto fail;
248
249 /* left outside, right outside */
250 gdi_SetRgn(invalid, 300, 300, 100, 100);
251 gdi_SetRgn(rgn1, 100, 300, 600, 300);
252 gdi_SetRgn(rgn2, 100, 300, 600, 300);
253 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
254
255 if (!gdi_EqualRgn(invalid, rgn2))
256 goto fail;
257
258 /* top outside, bottom outside */
259 gdi_SetRgn(invalid, 300, 300, 100, 100);
260 gdi_SetRgn(rgn1, 300, 100, 100, 500);
261 gdi_SetRgn(rgn2, 300, 100, 100, 500);
262 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
263
264 if (!gdi_EqualRgn(invalid, rgn2))
265 goto fail;
266
267 /* all outside, left */
268 gdi_SetRgn(invalid, 300, 300, 100, 100);
269 gdi_SetRgn(rgn1, 100, 300, 100, 100);
270 gdi_SetRgn(rgn2, 100, 300, 300, 100);
271 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
272
273 if (!gdi_EqualRgn(invalid, rgn2))
274 goto fail;
275
276 /* all outside, right */
277 gdi_SetRgn(invalid, 300, 300, 100, 100);
278 gdi_SetRgn(rgn1, 700, 300, 100, 100);
279 gdi_SetRgn(rgn2, 300, 300, 500, 100);
280 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
281
282 if (!gdi_EqualRgn(invalid, rgn2))
283 goto fail;
284
285 /* all outside, top */
286 gdi_SetRgn(invalid, 300, 300, 100, 100);
287 gdi_SetRgn(rgn1, 300, 100, 100, 100);
288 gdi_SetRgn(rgn2, 300, 100, 100, 300);
289 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
290
291 if (!gdi_EqualRgn(invalid, rgn2))
292 goto fail;
293
294 /* all outside, bottom */
295 gdi_SetRgn(invalid, 300, 300, 100, 100);
296 gdi_SetRgn(rgn1, 300, 500, 100, 100);
297 gdi_SetRgn(rgn2, 300, 300, 100, 300);
298 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
299
300 if (!gdi_EqualRgn(invalid, rgn2))
301 goto fail;
302
303 /* all outside */
304 gdi_SetRgn(invalid, 300, 300, 100, 100);
305 gdi_SetRgn(rgn1, 100, 100, 600, 600);
306 gdi_SetRgn(rgn2, 100, 100, 600, 600);
307 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
308
309 if (!gdi_EqualRgn(invalid, rgn2))
310 goto fail;
311
312 /* everything */
313 gdi_SetRgn(invalid, 300, 300, 100, 100);
314 gdi_SetRgn(rgn1, 0, 0, 1024, 768);
315 gdi_SetRgn(rgn2, 0, 0, 1024, 768);
316 gdi_InvalidateRegion(hdc, rgn1->x, rgn1->y, rgn1->w, rgn1->h);
317
318 if (!gdi_EqualRgn(invalid, rgn2))
319 goto fail;
320
321 rc = 0;
322fail:
323 gdi_DeleteObject((HGDIOBJECT)rgn1);
324 gdi_DeleteObject((HGDIOBJECT)rgn2);
325 gdi_DeleteObject((HGDIOBJECT)bmp);
326 gdi_DeleteDC(hdc);
327 return rc;
328}
329
330int TestGdiClip(int argc, char* argv[])
331{
332 WINPR_UNUSED(argc);
333 WINPR_UNUSED(argv);
334 (void)fprintf(stderr, "test_gdi_ClipCoords()\n");
335
336 if (test_gdi_ClipCoords() < 0)
337 return -1;
338
339 (void)fprintf(stderr, "test_gdi_InvalidateRegion()\n");
340
341 if (test_gdi_InvalidateRegion() < 0)
342 return -1;
343
344 return 0;
345}
GDI_BITMAP
Definition include/freerdp/gdi/gdi.h:392
GDI_DC
Definition include/freerdp/gdi/gdi.h:458
GDI_RGN
Definition include/freerdp/gdi/gdi.h:381
GDI_WND
Definition include/freerdp/gdi/gdi.h:449