1 /*
2  * Unit tests for mapping functions
3  *
4  * Copyright (c) 2005 Huw Davies
5  * Copyright (c) 2008 Dmitry  Timoshkov
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20  */
21 
22 #include <stdio.h>
23 #include <math.h>
24 
25 #include "wine/test.h"
26 #include "winbase.h"
27 #include "wingdi.h"
28 #include "winuser.h"
29 #include "winerror.h"
30 
31 static DWORD (WINAPI *pSetLayout)(HDC hdc, DWORD layout);
32 static DWORD (WINAPI *pGetLayout)(HDC hdc);
33 static INT (WINAPI *pGetRandomRgn)(HDC hDC, HRGN hRgn, INT iCode);
34 static BOOL (WINAPI *pGetTransform)(HDC, DWORD, XFORM *);
35 static BOOL (WINAPI *pSetVirtualResolution)(HDC, DWORD, DWORD, DWORD, DWORD);
36 
37 #define rough_match(got, expected) (abs( MulDiv( (got) - (expected), 1000, (expected) )) <= 5)
38 
39 #define expect_LPtoDP(_hdc, _x, _y) \
40 { \
41     POINT _pt = { 1000, 1000 }; \
42     LPtoDP(_hdc, &_pt, 1); \
43     ok(rough_match(_pt.x, _x), "expected x %d, got %d\n", (_x), _pt.x); \
44     ok(rough_match(_pt.y, _y), "expected y %d, got %d\n", (_y), _pt.y); \
45 }
46 
47 #define expect_world_transform(_hdc, _em11, _em22) \
48 { \
49     BOOL _ret; \
50     XFORM _xform; \
51     SetLastError(0xdeadbeef); \
52     _ret = GetWorldTransform(_hdc, &_xform); \
53     if (GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) \
54     { \
55         ok(_ret, "GetWorldTransform error %u\n", GetLastError()); \
56         ok(_xform.eM11 == (_em11), "expected %f, got %f\n", (_em11), _xform.eM11); \
57         ok(_xform.eM12 == 0.0, "expected 0.0, got %f\n", _xform.eM12); \
58         ok(_xform.eM21 == 0.0, "expected 0.0, got %f\n", _xform.eM21); \
59         ok(_xform.eM22 == (_em22), "expected %f, got %f\n", (_em22), _xform.eM22); \
60         ok(_xform.eDx == 0.0, "expected 0.0, got %f\n", _xform.eDx); \
61         ok(_xform.eDy == 0.0, "expected 0.0, got %f\n", _xform.eDy); \
62     } \
63 }
64 
65 #define expect_dc_ext(_func, _hdc, _cx, _cy) \
66 { \
67     BOOL _ret; \
68     SIZE _size; \
69     SetLastError(0xdeadbeef); \
70     _ret = _func(_hdc, &_size); \
71     ok(_ret, #_func " error %u\n", GetLastError()); \
72     ok(_size.cx == (_cx), "expected cx %d, got %d\n", (_cx), _size.cx); \
73     ok(_size.cy == (_cy), "expected cy %d, got %d\n", (_cy), _size.cy); \
74 }
75 
76 #define expect_viewport_ext(_hdc, _cx, _cy) expect_dc_ext(GetViewportExtEx, _hdc, _cx, _cy)
77 #define expect_window_ext(_hdc, _cx, _cy)  expect_dc_ext(GetWindowExtEx, _hdc, _cx, _cy)
78 
test_world_transform(void)79 static void test_world_transform(void)
80 {
81     HDC hdc;
82     INT ret, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
83     XFORM xform;
84     SIZE size;
85 
86     hdc = CreateCompatibleDC(0);
87 
88     xform.eM11 = 1.0f;
89     xform.eM12 = 0.0f;
90     xform.eM21 = 0.0f;
91     xform.eM22 = 1.0f;
92     xform.eDx = 0.0f;
93     xform.eDy = 0.0f;
94     ret = SetWorldTransform(hdc, &xform);
95     ok(!ret, "SetWorldTransform should fail in GM_COMPATIBLE mode\n");
96 
97     size_cx = GetDeviceCaps(hdc, HORZSIZE);
98     size_cy = GetDeviceCaps(hdc, VERTSIZE);
99     res_x = GetDeviceCaps(hdc, HORZRES);
100     res_y = GetDeviceCaps(hdc, VERTRES);
101     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
102     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
103     trace("dc size %d x %d, resolution %d x %d dpi %d x %d\n",
104           size_cx, size_cy, res_x, res_y, dpi_x, dpi_y );
105 
106     expect_viewport_ext(hdc, 1, 1);
107     expect_window_ext(hdc, 1, 1);
108     expect_world_transform(hdc, 1.0, 1.0);
109     expect_LPtoDP(hdc, 1000, 1000);
110 
111     SetLastError(0xdeadbeef);
112     ret = SetMapMode(hdc, MM_LOMETRIC);
113     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
114 
115     expect_viewport_ext(hdc, res_x, -res_y);
116     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
117     ok( rough_match( size.cx, size_cx * 10 ) ||
118         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
119         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
120     ok( rough_match( size.cy, size_cy * 10 ) ||
121         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
122         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
123     expect_world_transform(hdc, 1.0, 1.0);
124     expect_LPtoDP(hdc, MulDiv(1000 / 10, res_x, size_cx), -MulDiv(1000 / 10, res_y, size_cy));
125 
126     SetLastError(0xdeadbeef);
127     ret = SetMapMode(hdc, MM_TEXT);
128     ok(ret == MM_LOMETRIC, "expected MM_LOMETRIC, got %d\n", ret);
129 
130     expect_viewport_ext(hdc, 1, 1);
131     expect_window_ext(hdc, 1, 1);
132     expect_world_transform(hdc, 1.0, 1.0);
133     expect_LPtoDP(hdc, 1000, 1000);
134 
135     ret = SetGraphicsMode(hdc, GM_ADVANCED);
136     if (!ret)
137     {
138         DeleteDC(hdc);
139         skip("GM_ADVANCED is not supported on this platform\n");
140         return;
141     }
142 
143     expect_viewport_ext(hdc, 1, 1);
144     expect_window_ext(hdc, 1, 1);
145     expect_world_transform(hdc, 1.0, 1.0);
146     expect_LPtoDP(hdc, 1000, 1000);
147 
148     /* The transform must conform to (eM11 * eM22 != eM12 * eM21) requirement */
149     xform.eM11 = 1.0f;
150     xform.eM12 = 2.0f;
151     xform.eM21 = 1.0f;
152     xform.eM22 = 2.0f;
153     xform.eDx = 0.0f;
154     xform.eDy = 0.0f;
155     ret = SetWorldTransform(hdc, &xform);
156     ok(!ret ||
157        broken(ret), /* NT4 */
158        "SetWorldTransform should fail with an invalid xform\n");
159 
160     xform.eM11 = 20.0f;
161     xform.eM12 = 0.0f;
162     xform.eM21 = 0.0f;
163     xform.eM22 = 20.0f;
164     xform.eDx = 0.0f;
165     xform.eDy = 0.0f;
166     SetLastError(0xdeadbeef);
167     ret = SetWorldTransform(hdc, &xform);
168     ok(ret, "SetWorldTransform error %u\n", GetLastError());
169 
170     expect_viewport_ext(hdc, 1, 1);
171     expect_window_ext(hdc, 1, 1);
172     expect_world_transform(hdc, 20.0, 20.0);
173     expect_LPtoDP(hdc, 20000, 20000);
174 
175     SetLastError(0xdeadbeef);
176     ret = SetMapMode(hdc, MM_LOMETRIC);
177     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
178 
179     expect_viewport_ext(hdc, res_x, -res_y);
180     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
181     ok( rough_match( size.cx, size_cx * 10 ) ||
182         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
183         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
184     ok( rough_match( size.cy, size_cy * 10 ) ||
185         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
186         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
187     expect_world_transform(hdc, 20.0, 20.0);
188     expect_LPtoDP(hdc, MulDiv(20000, res_x, size.cx), -MulDiv(20000, res_y, size.cy));
189 
190     SetLastError(0xdeadbeef);
191     ret = SetMapMode(hdc, MM_TEXT);
192     ok(ret == MM_LOMETRIC, "expected MM_LOMETRIC, got %d\n", ret);
193 
194     expect_viewport_ext(hdc, 1, 1);
195     expect_window_ext(hdc, 1, 1);
196     expect_world_transform(hdc, 20.0, 20.0);
197     expect_LPtoDP(hdc, 20000, 20000);
198 
199     size.cx = 0xdeadbeef;
200     size.cy = 0xdeadbeef;
201     ret = SetViewportExtEx(hdc, -1, -1, &size);
202     ok(ret, "SetViewportExtEx(-1, -1) failed\n");
203     ok(size.cx == 1 && size.cy == 1, "expected 1,1 got %d,%d\n", size.cx, size.cy);
204     expect_viewport_ext(hdc, 1, 1);
205     expect_window_ext(hdc, 1, 1);
206     expect_world_transform(hdc, 20.0, 20.0);
207     expect_LPtoDP(hdc, 20000, 20000);
208 
209     ret = SetMapMode(hdc, MM_ANISOTROPIC);
210     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
211 
212     expect_viewport_ext(hdc, 1, 1);
213     expect_window_ext(hdc, 1, 1);
214     expect_world_transform(hdc, 20.0, 20.0);
215     expect_LPtoDP(hdc, 20000, 20000);
216 
217     size.cx = 0xdeadbeef;
218     size.cy = 0xdeadbeef;
219     ret = SetViewportExtEx(hdc, -1, -1, &size);
220     ok(ret, "SetViewportExtEx(-1, -1) failed\n");
221     ok(size.cx == 1 && size.cy == 1, "expected 1,1 got %d,%d\n", size.cx, size.cy);
222     expect_viewport_ext(hdc, -1, -1);
223     expect_window_ext(hdc, 1, 1);
224     expect_world_transform(hdc, 20.0, 20.0);
225     expect_LPtoDP(hdc, -20000, -20000);
226 
227     ret = SetGraphicsMode(hdc, GM_COMPATIBLE);
228     ok(ret, "SetGraphicsMode(GM_COMPATIBLE) should not fail if DC has't an identity transform\n");
229     ret = GetGraphicsMode(hdc);
230     ok(ret == GM_COMPATIBLE, "expected GM_COMPATIBLE, got %d\n", ret);
231 
232     expect_viewport_ext(hdc, -1, -1);
233     expect_window_ext(hdc, 1, 1);
234     expect_world_transform(hdc, 20.0, 20.0);
235     expect_LPtoDP(hdc, -20000, -20000);
236 
237     DeleteDC(hdc);
238 }
239 
test_dc_layout(void)240 static void test_dc_layout(void)
241 {
242     INT ret, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
243     SIZE size;
244     POINT pt;
245     HBITMAP bitmap;
246     RECT rc, ret_rc;
247     HDC hdc;
248     HRGN hrgn;
249 
250     if (!pGetLayout || !pSetLayout)
251     {
252         win_skip( "Don't have SetLayout\n" );
253         return;
254     }
255 
256     hdc = CreateCompatibleDC(0);
257     bitmap = CreateCompatibleBitmap( hdc, 100, 100 );
258     SelectObject( hdc, bitmap );
259 
260     size_cx = GetDeviceCaps(hdc, HORZSIZE);
261     size_cy = GetDeviceCaps(hdc, VERTSIZE);
262     res_x = GetDeviceCaps(hdc, HORZRES);
263     res_y = GetDeviceCaps(hdc, VERTRES);
264     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
265     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
266 
267     ret = GetMapMode( hdc );
268     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
269     expect_viewport_ext(hdc, 1, 1);
270     expect_window_ext(hdc, 1, 1);
271     expect_world_transform(hdc, 1.0, 1.0);
272     expect_LPtoDP(hdc, 1000, 1000);
273 
274     pSetLayout( hdc, LAYOUT_RTL );
275     if (!pGetLayout( hdc ))
276     {
277         win_skip( "SetLayout not supported\n" );
278         DeleteDC(hdc);
279         return;
280     }
281 
282     ret = GetMapMode( hdc );
283     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
284     expect_viewport_ext(hdc, 1, 1);
285     expect_window_ext(hdc, 1, 1);
286     expect_world_transform(hdc, 1.0, 1.0);
287     expect_LPtoDP(hdc, -1000 + 99, 1000);
288     GetViewportOrgEx( hdc, &pt );
289     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
290     GetWindowOrgEx( hdc, &pt );
291     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
292     GetDCOrgEx( hdc, &pt );
293     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
294     if (pGetTransform)
295     {
296         XFORM xform;
297         BOOL ret = pGetTransform( hdc, 0x204, &xform ); /* World -> Device */
298         ok( ret, "got %d\n", ret );
299         ok( xform.eM11 == -1.0, "got %f\n", xform.eM11 );
300         ok( xform.eM12 == 0.0, "got %f\n", xform.eM12 );
301         ok( xform.eM21 == 0.0, "got %f\n", xform.eM21 );
302         ok( xform.eM22 == 1.0, "got %f\n", xform.eM22 );
303         ok( xform.eDx == 99.0, "got %f\n", xform.eDx );
304         ok( xform.eDy == 0.0, "got %f\n", xform.eDy );
305     }
306 
307     SetRect( &rc, 10, 10, 20, 20 );
308     IntersectClipRect( hdc, 10, 10, 20, 20 );
309     hrgn = CreateRectRgn( 0, 0, 0, 0 );
310     GetClipRgn( hdc, hrgn );
311     GetRgnBox( hrgn, &ret_rc );
312     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
313     pSetLayout( hdc, LAYOUT_LTR );
314     SetRect( &rc, 80, 10, 90, 20 );
315     GetClipRgn( hdc, hrgn );
316     GetRgnBox( hrgn, &ret_rc );
317     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
318     GetClipBox( hdc, &ret_rc );
319     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
320     IntersectClipRect( hdc, 80, 10, 85, 20 );
321     pSetLayout( hdc, LAYOUT_RTL );
322     SetRect( &rc, 15, 10, 20, 20 );
323     GetClipRgn( hdc, hrgn );
324     GetRgnBox( hrgn, &ret_rc );
325     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
326     GetClipBox( hdc, &ret_rc );
327     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
328     SetRectRgn( hrgn, 60, 10, 80, 20 );
329     pSetLayout( hdc, LAYOUT_LTR );
330     ExtSelectClipRgn( hdc, hrgn, RGN_OR );
331     pSetLayout( hdc, LAYOUT_RTL );
332     SetRect( &rc, 15, 10, 40, 20 );
333     GetClipRgn( hdc, hrgn );
334     GetRgnBox( hrgn, &ret_rc );
335     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
336     GetClipBox( hdc, &ret_rc );
337     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
338 
339     /* OffsetClipRgn mirrors too */
340     OffsetClipRgn( hdc, 5, 5 );
341     OffsetRect( &rc, 5, 5 );
342     GetClipRgn( hdc, hrgn );
343     GetRgnBox( hrgn, &ret_rc );
344     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
345 
346     /* GetRandomRgn returns the raw region */
347     if (pGetRandomRgn)
348     {
349         SetRect( &rc, 55, 15, 80, 25 );
350         pGetRandomRgn( hdc, hrgn, 1 );
351         GetRgnBox( hrgn, &ret_rc );
352         ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
353     }
354 
355     SetMapMode(hdc, MM_LOMETRIC);
356     ret = GetMapMode( hdc );
357     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
358 
359     expect_viewport_ext(hdc, res_x, -res_y);
360     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
361     ok( rough_match( size.cx, size_cx * 10 ) ||
362         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
363         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
364     ok( rough_match( size.cy, size_cy * 10 ) ||
365         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
366         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
367     expect_world_transform(hdc, 1.0, 1.0);
368     expect_LPtoDP(hdc, -MulDiv(1000 / 10, res_x, size_cx) + 99, -MulDiv(1000 / 10, res_y, size_cy));
369 
370     SetMapMode(hdc, MM_TEXT);
371     ret = GetMapMode( hdc );
372     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
373     pSetLayout( hdc, LAYOUT_LTR );
374     ret = GetMapMode( hdc );
375     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
376     SetMapMode(hdc, MM_TEXT);
377     ret = GetMapMode( hdc );
378     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
379 
380     DeleteDC(hdc);
381     DeleteObject( bitmap );
382 }
383 
test_modify_world_transform(void)384 static void test_modify_world_transform(void)
385 {
386     HDC hdc = GetDC(0);
387     int ret;
388 
389     ret = SetGraphicsMode(hdc, GM_ADVANCED);
390     ok(ret, "ret = %d\n", ret);
391 
392     ret = ModifyWorldTransform(hdc, NULL, MWT_IDENTITY);
393     ok(ret, "ret = %d\n", ret);
394 
395     ret = ModifyWorldTransform(hdc, NULL, MWT_LEFTMULTIPLY);
396     ok(!ret, "ret = %d\n", ret);
397 
398     ret = ModifyWorldTransform(hdc, NULL, MWT_RIGHTMULTIPLY);
399     ok(!ret, "ret = %d\n", ret);
400 
401     ReleaseDC(0, hdc);
402 }
403 
test_SetWindowExt(HDC hdc,LONG cx,LONG cy,LONG expected_vp_cx,LONG expected_vp_cy)404 static void test_SetWindowExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
405 {
406     SIZE windowExt, viewportExt;
407     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
408 
409     GetWindowOrgEx(hdc, &windowOrg);
410     GetViewportOrgEx(hdc, &viewportOrg);
411 
412     SetWindowExtEx(hdc, cx, cy, NULL);
413     GetWindowExtEx(hdc, &windowExt);
414     ok(windowExt.cx == cx && windowExt.cy == cy,
415        "Window extension: Expected %dx%d, got %dx%d\n",
416        cx, cy, windowExt.cx, windowExt.cy);
417 
418     GetViewportExtEx(hdc, &viewportExt);
419     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
420         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
421         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
422 
423     GetWindowOrgEx(hdc, &windowOrgAfter);
424     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
425         "Window origin changed from (%d,%d) to (%d,%d)\n",
426         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
427 
428     GetViewportOrgEx(hdc, &viewportOrgAfter);
429     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
430         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
431         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
432 }
433 
test_SetViewportExt(HDC hdc,LONG cx,LONG cy,LONG expected_vp_cx,LONG expected_vp_cy)434 static void test_SetViewportExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
435 {
436     SIZE windowExt, windowExtAfter, viewportExt;
437     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
438 
439     GetWindowOrgEx(hdc, &windowOrg);
440     GetViewportOrgEx(hdc, &viewportOrg);
441     GetWindowExtEx(hdc, &windowExt);
442 
443     SetViewportExtEx(hdc, cx, cy, NULL);
444     GetViewportExtEx(hdc, &viewportExt);
445     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
446         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
447         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
448 
449     GetWindowExtEx(hdc, &windowExtAfter);
450     ok(windowExt.cx == windowExtAfter.cx && windowExt.cy == windowExtAfter.cy,
451        "Window extension changed from %dx%d to %dx%d\n",
452        windowExt.cx, windowExt.cy, windowExtAfter.cx, windowExtAfter.cy);
453 
454     GetWindowOrgEx(hdc, &windowOrgAfter);
455     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
456         "Window origin changed from (%d,%d) to (%d,%d)\n",
457         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
458 
459     GetViewportOrgEx(hdc, &viewportOrgAfter);
460     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
461         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
462         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
463 }
464 
test_isotropic_mapping(void)465 static void test_isotropic_mapping(void)
466 {
467     SIZE win, vp;
468     HDC hdc = GetDC(0);
469 
470     SetMapMode(hdc, MM_ISOTROPIC);
471 
472     /* MM_ISOTROPIC is set up like MM_LOMETRIC.
473        Initial values after SetMapMode():
474        (1 inch = 25.4 mm)
475 
476                        Windows 9x:               Windows NT:
477        Window Ext:     254 x -254                HORZSIZE*10 x VERTSIZE*10
478        Viewport Ext:   LOGPIXELSX x LOGPIXELSY   HORZRES x -VERTRES
479 
480        To test without rounding errors, we have to use multiples of
481        these values!
482      */
483 
484     GetWindowExtEx(hdc, &win);
485     GetViewportExtEx(hdc, &vp);
486 
487     test_SetViewportExt(hdc, 10 * vp.cx, 10 * vp.cy, 10 * vp.cx, 10 * vp.cy);
488     test_SetWindowExt(hdc, win.cx, win.cy, 10 * vp.cx, 10 * vp.cy);
489     test_SetWindowExt(hdc, 2 * win.cx, win.cy, 10 * vp.cx, 5 * vp.cy);
490     test_SetWindowExt(hdc, win.cx, win.cy, 5 * vp.cx, 5 * vp.cy);
491     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
492     test_SetViewportExt(hdc, vp.cx, 2 * vp.cy, vp.cx, vp.cy);
493     test_SetViewportExt(hdc, 2 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
494     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
495     test_SetWindowExt(hdc, 4 * win.cx, 2 * win.cy, 2 * vp.cx, vp.cy);
496     test_SetViewportExt(hdc, -2 * vp.cx, -4 * vp.cy, -2 * vp.cx, -vp.cy);
497     test_SetViewportExt(hdc, -2 * vp.cx, -1 * vp.cy, -2 * vp.cx, -vp.cy);
498     test_SetWindowExt(hdc, -4 * win.cx, -2 * win.cy, -2 * vp.cx, -vp.cy);
499     test_SetWindowExt(hdc, 4 * win.cx, -4 * win.cy, -vp.cx, -vp.cy);
500 
501     ReleaseDC(0, hdc);
502 }
503 
test_setvirtualresolution(void)504 static void test_setvirtualresolution(void)
505 {
506     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
507     BOOL r;
508     INT horz_res = GetDeviceCaps(hdc, HORZRES);
509     INT horz_size = GetDeviceCaps(hdc, HORZSIZE);
510     INT log_pixels_x = GetDeviceCaps(hdc, LOGPIXELSX);
511     SIZE orig_lometric_vp, orig_lometric_wnd;
512 
513     if(!pSetVirtualResolution)
514     {
515         win_skip("Don't have SetVirtualResolution\n");
516         return;
517     }
518 
519     /* Get the true resolution limits */
520     SetMapMode(hdc, MM_LOMETRIC);
521     GetViewportExtEx(hdc, &orig_lometric_vp);
522     GetWindowExtEx(hdc, &orig_lometric_wnd);
523     SetMapMode(hdc, MM_TEXT);
524 
525     r = pSetVirtualResolution(hdc, 4000, 1000, 400, 200); /* 10 pix/mm x 5 pix/mm */
526     ok(r == TRUE, "got %d\n", r);
527     expect_LPtoDP(hdc, 1000, 1000);
528     expect_viewport_ext(hdc, 1, 1);
529     expect_window_ext(hdc, 1, 1);
530 
531     SetMapMode(hdc, MM_LOMETRIC);
532     expect_LPtoDP(hdc, 1000, -500);
533     expect_viewport_ext(hdc, 4000, -1000);
534     expect_window_ext(hdc, 4000, 2000);
535 
536     /* Doesn't change the device caps */
537     ok(horz_res == GetDeviceCaps(hdc, HORZRES), "horz_res changed\n");
538     ok(horz_size == GetDeviceCaps(hdc, HORZSIZE), "horz_size changed\n");
539     ok(log_pixels_x == GetDeviceCaps(hdc, LOGPIXELSX), "log_pixels_x changed\n");
540 
541     r = pSetVirtualResolution(hdc, 8000, 1000, 400, 200); /* 20 pix/mm x 5 pix/mm */
542     ok(r == TRUE, "got %d\n", r);
543     expect_LPtoDP(hdc, 1000, -500); /* No change, need to re-set the mapping mode */
544     SetMapMode(hdc, MM_TEXT);
545     SetMapMode(hdc, MM_LOMETRIC);
546     expect_LPtoDP(hdc, 2000, -500);
547     expect_viewport_ext(hdc, 8000, -1000);
548     expect_window_ext(hdc, 4000, 2000);
549 
550     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
551     ok(r == TRUE, "got %d\n", r);
552     SetMapMode(hdc, MM_TEXT);
553     SetMapMode(hdc, MM_LOMETRIC);
554     expect_LPtoDP(hdc, 4000, -500);
555     expect_viewport_ext(hdc, 8000, -1000);
556     expect_window_ext(hdc, 2000, 2000);
557 
558     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
559     ok(r == TRUE, "got %d\n", r);
560     SetMapMode(hdc, MM_TEXT);
561     SetMapMode(hdc, MM_LOMETRIC);
562     expect_LPtoDP(hdc, 4000, -500);
563     expect_viewport_ext(hdc, 8000, -1000);
564     expect_window_ext(hdc, 2000, 2000);
565 
566     r = pSetVirtualResolution(hdc, 8000, 2000, 200, 200); /* 40 pix/mm x 10 pix/mm */
567     ok(r == TRUE, "got %d\n", r);
568     SetMapMode(hdc, MM_TEXT);
569     SetMapMode(hdc, MM_LOMETRIC);
570     expect_LPtoDP(hdc, 4000, -1000);
571     expect_viewport_ext(hdc, 8000, -2000);
572     expect_window_ext(hdc, 2000, 2000);
573 
574     r = pSetVirtualResolution(hdc, 0, 0, 10, 0); /* Error */
575     ok(r == FALSE, "got %d\n", r);
576     SetMapMode(hdc, MM_TEXT);
577     SetMapMode(hdc, MM_LOMETRIC);
578     expect_LPtoDP(hdc, 4000, -1000);
579     expect_viewport_ext(hdc, 8000, -2000);
580     expect_window_ext(hdc, 2000, 2000);
581 
582     r = pSetVirtualResolution(hdc, 0, 0, 0, 0); /* Reset to true resolution */
583     ok(r == TRUE, "got %d\n", r);
584     SetMapMode(hdc, MM_TEXT);
585     SetMapMode(hdc, MM_LOMETRIC);
586     expect_viewport_ext(hdc, orig_lometric_vp.cx, orig_lometric_vp.cy);
587     expect_window_ext(hdc, orig_lometric_wnd.cx, orig_lometric_wnd.cy);
588 
589     DeleteDC(hdc);
590 }
591 
592 
expect_identity(int line,XFORM * xf)593 static inline void expect_identity(int line, XFORM *xf)
594 {
595     ok(xf->eM11 == 1.0, "%d: got %f\n", line, xf->eM11);
596     ok(xf->eM12 == 0.0, "%d: got %f\n", line, xf->eM12);
597     ok(xf->eM21 == 0.0, "%d: got %f\n", line, xf->eM21);
598     ok(xf->eM22 == 1.0, "%d: got %f\n", line, xf->eM22);
599     ok(xf->eDx == 0.0, "%d: got %f\n", line, xf->eDx);
600     ok(xf->eDy == 0.0, "%d: got %f\n", line, xf->eDy);
601 }
602 
xform_near_match(int line,XFORM * got,XFORM * expect)603 static inline void xform_near_match(int line, XFORM *got, XFORM *expect)
604 {
605     ok(fabs(got->eM11 - expect->eM11) < 0.001, "%d: got %f expect %f\n", line, got->eM11, expect->eM11);
606     ok(fabs(got->eM12 - expect->eM12) < 0.001, "%d: got %f expect %f\n", line, got->eM12, expect->eM12);
607     ok(fabs(got->eM21 - expect->eM21) < 0.001, "%d: got %f expect %f\n", line, got->eM21, expect->eM21);
608     ok(fabs(got->eM22 - expect->eM22) < 0.001, "%d: got %f expect %f\n", line, got->eM22, expect->eM22);
609     ok(fabs(got->eDx - expect->eDx) < 0.001, "%d: got %f expect %f\n", line, got->eDx, expect->eDx);
610     ok(fabs(got->eDy - expect->eDy) < 0.001, "%d: got %f expect %f\n", line, got->eDy, expect->eDy);
611 }
612 
613 
test_gettransform(void)614 static void test_gettransform(void)
615 {
616     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
617     XFORM xform, expect;
618     BOOL r;
619     SIZE lometric_vp, lometric_wnd;
620 
621     if(!pGetTransform)
622     {
623         win_skip("Don't have GetTransform\n");
624         return;
625     }
626 
627     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
628     ok(r == TRUE, "got %d\n", r);
629     expect_identity(__LINE__, &xform);
630     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
631     ok(r == TRUE, "got %d\n", r);
632     expect_identity(__LINE__, &xform);
633     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
634     ok(r == TRUE, "got %d\n", r);
635     expect_identity(__LINE__, &xform);
636     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
637     ok(r == TRUE, "got %d\n", r);
638     expect_identity(__LINE__, &xform);
639 
640     SetMapMode(hdc, MM_LOMETRIC);
641     GetViewportExtEx(hdc, &lometric_vp);
642     GetWindowExtEx(hdc, &lometric_wnd);
643 
644     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
645     ok(r == TRUE, "got %d\n", r);
646     expect_identity(__LINE__, &xform);
647 
648     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
649     ok(r == TRUE, "got %d\n", r);
650     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
651     expect.eM12 = expect.eM21 = 0.0;
652     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
653     expect.eDx = expect.eDy = 0.0;
654     xform_near_match(__LINE__, &xform, &expect);
655 
656     r = pGetTransform(hdc, 0x204, &xform);  /* World -> Device */
657     ok(r == TRUE, "got %d\n", r);
658     xform_near_match(__LINE__, &xform, &expect);
659 
660     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
661     ok(r == TRUE, "got %d\n", r);
662     expect.eM11 = (FLOAT) lometric_wnd.cx / lometric_vp.cx;
663     expect.eM22 = (FLOAT) lometric_wnd.cy / lometric_vp.cy;
664     xform_near_match(__LINE__, &xform, &expect);
665 
666 
667     SetGraphicsMode(hdc, GM_ADVANCED);
668 
669     expect.eM11 = 10.0;
670     expect.eM22 = 20.0;
671     SetWorldTransform(hdc, &expect);
672     r = pGetTransform(hdc, 0x203, &xform);  /* World -> Page */
673     ok(r == TRUE, "got %d\n", r);
674     xform_near_match(__LINE__, &xform, &expect);
675 
676     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
677     ok(r == TRUE, "got %d\n", r);
678     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
679     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
680     xform_near_match(__LINE__, &xform, &expect);
681 
682     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
683     ok(r == TRUE, "got %d\n", r);
684     expect.eM11 *= 10.0;
685     expect.eM22 *= 20.0;
686     xform_near_match(__LINE__, &xform, &expect);
687 
688     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
689     ok(r == TRUE, "got %d\n", r);
690     expect.eM11 = 1 / expect.eM11;
691     expect.eM22 = 1 / expect.eM22;
692     xform_near_match(__LINE__, &xform, &expect);
693 
694     r = pGetTransform(hdc, 0x102, &xform);
695     ok(r == FALSE, "got %d\n", r);
696     r = pGetTransform(hdc, 0x103, &xform);
697     ok(r == FALSE, "got %d\n", r);
698     r = pGetTransform(hdc, 0x104, &xform);
699     ok(r == FALSE, "got %d\n", r);
700     r = pGetTransform(hdc, 0x202, &xform);
701     ok(r == FALSE, "got %d\n", r);
702     r = pGetTransform(hdc, 0x302, &xform);
703     ok(r == FALSE, "got %d\n", r);
704     r = pGetTransform(hdc, 0x303, &xform);
705     ok(r == FALSE, "got %d\n", r);
706     r = pGetTransform(hdc, 0x403, &xform);
707     ok(r == FALSE, "got %d\n", r);
708     r = pGetTransform(hdc, 0x404, &xform);
709     ok(r == FALSE, "got %d\n", r);
710     r = pGetTransform(hdc, 0xffff, &xform);
711     ok(r == FALSE, "got %d\n", r);
712 }
713 
START_TEST(mapping)714 START_TEST(mapping)
715 {
716     HMODULE mod = GetModuleHandleA("gdi32.dll");
717     pGetLayout = (void *)GetProcAddress( mod, "GetLayout" );
718     pSetLayout = (void *)GetProcAddress( mod, "SetLayout" );
719     pGetRandomRgn = (void *)GetProcAddress( mod, "GetRandomRgn" );
720     pGetTransform = (void *)GetProcAddress( mod, "GetTransform" );
721     pSetVirtualResolution = (void *)GetProcAddress( mod, "SetVirtualResolution" );
722 
723     test_modify_world_transform();
724     test_world_transform();
725     test_dc_layout();
726     test_isotropic_mapping();
727     test_setvirtualresolution();
728     test_gettransform();
729 }
730