dlls/gdi32/tests/mapping.c

   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 *pGetLayout)(HDC hdc);
  32 static INT (WINAPI *pGetRandomRgn)(HDC hDC, HRGN hRgn, INT iCode);
  33 static BOOL (WINAPI *pGetTransform)(HDC, DWORD, XFORM *);
  34 static BOOL (WINAPI *pSetVirtualResolution)(HDC, DWORD, DWORD, DWORD, DWORD);
  35
  36 #define rough_match(got, expected) (abs( MulDiv( (got) - (expected), 1000, (expected) )) <= 5)
  37
  38 #define expect_LPtoDP(_hdc, _x, _y) \
  39 { \
  40     POINT _pt = { 1000, 1000 }; \
  41     LPtoDP(_hdc, &_pt, 1); \
  42     ok(rough_match(_pt.x, _x), "expected x %d, got %ld\n", (_x), _pt.x); \
  43     ok(rough_match(_pt.y, _y), "expected y %d, got %ld\n", (_y), _pt.y); \
  44 }
  45
  46 #define expect_world_transform(_hdc, _em11, _em22) \
  47 { \
  48     BOOL _ret; \
  49     XFORM _xform; \
  50     SetLastError(0xdeadbeef); \
  51     _ret = GetWorldTransform(_hdc, &_xform); \
  52     if (GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) \
  53     { \
  54         ok(_ret, "GetWorldTransform error %lu\n", GetLastError()); \
  55         ok(_xform.eM11 == (_em11), "expected %f, got %f\n", (_em11), _xform.eM11); \
  56         ok(_xform.eM12 == 0.0, "expected 0.0, got %f\n", _xform.eM12); \
  57         ok(_xform.eM21 == 0.0, "expected 0.0, got %f\n", _xform.eM21); \
  58         ok(_xform.eM22 == (_em22), "expected %f, got %f\n", (_em22), _xform.eM22); \
  59         ok(_xform.eDx == 0.0, "expected 0.0, got %f\n", _xform.eDx); \
  60         ok(_xform.eDy == 0.0, "expected 0.0, got %f\n", _xform.eDy); \
  61     } \
  62 }
  63
  64 #define expect_dc_ext(_func, _hdc, _cx, _cy) \
  65 { \
  66     BOOL _ret; \
  67     SIZE _size; \
  68     SetLastError(0xdeadbeef); \
  69     _ret = _func(_hdc, &_size); \
  70     ok(_ret, #_func " error %lu\n", GetLastError()); \
  71     ok(_size.cx == (_cx), "expected cx %ld, got %ld\n", (_cx), _size.cx); \
  72     ok(_size.cy == (_cy), "expected cy %ld, got %ld\n", (_cy), _size.cy); \
  73 }
  74
  75 #define expect_viewport_ext(_hdc, _cx, _cy) expect_dc_ext(GetViewportExtEx, _hdc, _cx, _cy)
  76 #define expect_window_ext(_hdc, _cx, _cy)  expect_dc_ext(GetWindowExtEx, _hdc, _cx, _cy)
  77
  78 static void test_world_transform(void)
  79 {
  80     HDC hdc;
  81     int ret;
  82     LONG 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 %ld x %ld, resolution %ld x %ld dpi %ld x %ld\n",
 104           size_cx, size_cy, res_x, res_y, dpi_x, dpi_y );
 105
 106     expect_viewport_ext(hdc, 1l, 1l);
 107     expect_window_ext(hdc, 1l, 1l);
 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 %ld or %d, got %ld\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 %ld or %d, got %ld\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, 1l, 1l);
 131     expect_window_ext(hdc, 1l, 1l);
 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, 1l, 1l);
 144     expect_window_ext(hdc, 1l, 1l);
 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 %lu\n", GetLastError());
 169
 170     expect_viewport_ext(hdc, 1l, 1l);
 171     expect_window_ext(hdc, 1l, 1l);
 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 %ld or %d, got %ld\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 %ld or %d, got %ld\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, 1l, 1l);
 195     expect_window_ext(hdc, 1l, 1l);
 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 %ld,%ld\n", size.cx, size.cy);
 204     expect_viewport_ext(hdc, 1l, 1l);
 205     expect_window_ext(hdc, 1l, 1l);
 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, 1l, 1l);
 213     expect_window_ext(hdc, 1l, 1l);
 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 %ld,%ld\n", size.cx, size.cy);
 222     expect_viewport_ext(hdc, -1l, -1l);
 223     expect_window_ext(hdc, 1l, 1l);
 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, -1l, -1l);
 233     expect_window_ext(hdc, 1l, 1l);
 234     expect_world_transform(hdc, 20.0, 20.0);
 235     expect_LPtoDP(hdc, -20000, -20000);
 236
 237     DeleteDC(hdc);
 238 }
 239
 240 static void test_dc_layout(void)
 241 {
 242     INT ret;
 243     LONG size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
 244     SIZE size;
 245     POINT pt;
 246     HBITMAP bitmap;
 247     RECT rc, ret_rc;
 248     HDC hdc;
 249     HRGN hrgn;
 250
 251     if (!pGetLayout)
 252     {
 253         win_skip( "Don't have GetLayout\n" );
 254         return;
 255     }
 256
 257     hdc = CreateCompatibleDC(0);
 258     bitmap = CreateCompatibleBitmap( hdc, 100, 100 );
 259     SelectObject( hdc, bitmap );
 260
 261     size_cx = GetDeviceCaps(hdc, HORZSIZE);
 262     size_cy = GetDeviceCaps(hdc, VERTSIZE);
 263     res_x = GetDeviceCaps(hdc, HORZRES);
 264     res_y = GetDeviceCaps(hdc, VERTRES);
 265     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
 266     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
 267
 268     ret = GetMapMode( hdc );
 269     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 270     expect_viewport_ext(hdc, 1l, 1l);
 271     expect_window_ext(hdc, 1l, 1l);
 272     expect_world_transform(hdc, 1.0, 1.0);
 273     expect_LPtoDP(hdc, 1000, 1000);
 274
 275     SetLayout( hdc, LAYOUT_RTL );
 276     if (!pGetLayout( hdc ))
 277     {
 278         win_skip( "SetLayout not supported\n" );
 279         DeleteDC(hdc);
 280         return;
 281     }
 282
 283     ret = GetMapMode( hdc );
 284     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 285     ret = pGetLayout( hdc );
 286     ok(ret == LAYOUT_RTL, "got %x\n", ret);
 287     expect_viewport_ext(hdc, 1l, 1l);
 288     expect_window_ext(hdc, 1l, 1l);
 289     expect_world_transform(hdc, 1.0, 1.0);
 290     expect_LPtoDP(hdc, -1000 + 99, 1000);
 291     GetViewportOrgEx( hdc, &pt );
 292     ok( pt.x == 0 && pt.y == 0, "wrong origin %ld,%ld\n", pt.x, pt.y );
 293     GetWindowOrgEx( hdc, &pt );
 294     ok( pt.x == 0 && pt.y == 0, "wrong origin %ld,%ld\n", pt.x, pt.y );
 295     GetDCOrgEx( hdc, &pt );
 296     ok( pt.x == 0 && pt.y == 0, "wrong origin %ld,%ld\n", pt.x, pt.y );
 297     if (pGetTransform)
 298     {
 299         XFORM xform;
 300         BOOL ret = pGetTransform( hdc, 0x204, &xform ); /* World -> Device */
 301         ok( ret, "got %d\n", ret );
 302         ok( xform.eM11 == -1.0, "got %f\n", xform.eM11 );
 303         ok( xform.eM12 == 0.0, "got %f\n", xform.eM12 );
 304         ok( xform.eM21 == 0.0, "got %f\n", xform.eM21 );
 305         ok( xform.eM22 == 1.0, "got %f\n", xform.eM22 );
 306         ok( xform.eDx == 99.0, "got %f\n", xform.eDx );
 307         ok( xform.eDy == 0.0, "got %f\n", xform.eDy );
 308     }
 309
 310     SetRect( &rc, 10, 10, 20, 20 );
 311     IntersectClipRect( hdc, 10, 10, 20, 20 );
 312     hrgn = CreateRectRgn( 0, 0, 0, 0 );
 313     GetClipRgn( hdc, hrgn );
 314     GetRgnBox( hrgn, &ret_rc );
 315     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 316     SetLayout( hdc, LAYOUT_LTR );
 317     SetRect( &rc, 80, 10, 90, 20 );
 318     GetClipRgn( hdc, hrgn );
 319     GetRgnBox( hrgn, &ret_rc );
 320     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 321     GetClipBox( hdc, &ret_rc );
 322     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 323     IntersectClipRect( hdc, 80, 10, 85, 20 );
 324     SetLayout( hdc, LAYOUT_RTL );
 325     SetRect( &rc, 15, 10, 20, 20 );
 326     GetClipRgn( hdc, hrgn );
 327     GetRgnBox( hrgn, &ret_rc );
 328     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 329     GetClipBox( hdc, &ret_rc );
 330     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 331     SetRectRgn( hrgn, 60, 10, 80, 20 );
 332     SetLayout( hdc, LAYOUT_LTR );
 333     ExtSelectClipRgn( hdc, hrgn, RGN_OR );
 334     SetLayout( hdc, LAYOUT_RTL );
 335     SetRect( &rc, 15, 10, 40, 20 );
 336     GetClipRgn( hdc, hrgn );
 337     GetRgnBox( hrgn, &ret_rc );
 338     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 339     GetClipBox( hdc, &ret_rc );
 340     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 341
 342     /* OffsetClipRgn mirrors too */
 343     OffsetClipRgn( hdc, 5, 5 );
 344     OffsetRect( &rc, 5, 5 );
 345     GetClipRgn( hdc, hrgn );
 346     GetRgnBox( hrgn, &ret_rc );
 347     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 348
 349     /* GetRandomRgn returns the raw region */
 350     if (pGetRandomRgn)
 351     {
 352         SetRect( &rc, 55, 15, 80, 25 );
 353         pGetRandomRgn( hdc, hrgn, 1 );
 354         GetRgnBox( hrgn, &ret_rc );
 355         ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 356     }
 357
 358     SetMapMode(hdc, MM_LOMETRIC);
 359     ret = GetMapMode( hdc );
 360     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 361
 362     expect_viewport_ext(hdc, res_x, -res_y);
 363     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 364     ok( rough_match( size.cx, size_cx * 10 ) ||
 365         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 366         "expected cx %ld or %d, got %ld\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 367     ok( rough_match( size.cy, size_cy * 10 ) ||
 368         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 369         "expected cy %lxd or %d, got %ld\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 370     expect_world_transform(hdc, 1.0, 1.0);
 371     expect_LPtoDP(hdc, -MulDiv(1000 / 10, res_x, size_cx) + 99, -MulDiv(1000 / 10, res_y, size_cy));
 372
 373     SetMapMode(hdc, MM_TEXT);
 374     ret = GetMapMode( hdc );
 375     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 376     SetLayout( hdc, LAYOUT_LTR );
 377     ret = GetMapMode( hdc );
 378     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 379     SetMapMode(hdc, MM_TEXT);
 380     ret = GetMapMode( hdc );
 381     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 382
 383     DeleteDC(hdc);
 384     DeleteObject( bitmap );
 385 }
 386
 387 static void test_modify_world_transform(void)
 388 {
 389     HDC hdc = GetDC(0);
 390     XFORM xform, xform2;
 391     int ret;
 392
 393     ret = SetGraphicsMode(hdc, GM_ADVANCED);
 394     ok(ret, "ret = %d\n", ret);
 395
 396     ret = ModifyWorldTransform(hdc, NULL, MWT_IDENTITY);
 397     ok(ret, "ret = %d\n", ret);
 398
 399     ret = ModifyWorldTransform(hdc, NULL, MWT_LEFTMULTIPLY);
 400     ok(!ret, "ret = %d\n", ret);
 401
 402     ret = ModifyWorldTransform(hdc, NULL, MWT_RIGHTMULTIPLY);
 403     ok(!ret, "ret = %d\n", ret);
 404
 405     xform.eM11 = 2;
 406     xform.eM12 = 0;
 407     xform.eM21 = 0;
 408     xform.eM22 = 1;
 409     xform.eDx = xform.eDy = 0;
 410     ret = ModifyWorldTransform(hdc, &xform, 4);
 411     ok(ret, "ModifyWorldTransform failed\n");
 412
 413     memset(&xform2, 0xcc, sizeof(xform2));
 414     ret = GetWorldTransform(hdc, &xform2);
 415     ok(ret, "GetWorldTransform failed\n");
 416     ok(!memcmp(&xform, &xform2, sizeof(xform)), "unexpected xform\n");
 417
 418     xform.eM11 = 1;
 419     xform.eM12 = 1;
 420     xform.eM21 = 1;
 421     xform.eM22 = 1;
 422     xform.eDx = xform.eDy = 0;
 423     ret = ModifyWorldTransform(hdc, &xform, 4);
 424     ok(!ret, "ModifyWorldTransform succeeded\n");
 425
 426     ReleaseDC(0, hdc);
 427 }
 428
 429 static void test_SetWindowExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 430 {
 431     SIZE windowExt, viewportExt;
 432     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 433
 434     GetWindowOrgEx(hdc, &windowOrg);
 435     GetViewportOrgEx(hdc, &viewportOrg);
 436
 437     SetWindowExtEx(hdc, cx, cy, NULL);
 438     GetWindowExtEx(hdc, &windowExt);
 439     ok(windowExt.cx == cx && windowExt.cy == cy,
 440        "Window extension: Expected %ldx%ld, got %ldx%ld\n",
 441        cx, cy, windowExt.cx, windowExt.cy);
 442
 443     GetViewportExtEx(hdc, &viewportExt);
 444     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 445         "Viewport extents have not been properly adjusted: Expected %ldx%ld, got %ldx%ld\n",
 446         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 447
 448     GetWindowOrgEx(hdc, &windowOrgAfter);
 449     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 450         "Window origin changed from (%ld,%ld) to (%ld,%ld)\n",
 451         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 452
 453     GetViewportOrgEx(hdc, &viewportOrgAfter);
 454     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 455         "Viewport origin changed from (%ld,%ld) to (%ld,%ld)\n",
 456         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 457 }
 458
 459 static void test_SetViewportExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 460 {
 461     SIZE windowExt, windowExtAfter, viewportExt;
 462     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 463
 464     GetWindowOrgEx(hdc, &windowOrg);
 465     GetViewportOrgEx(hdc, &viewportOrg);
 466     GetWindowExtEx(hdc, &windowExt);
 467
 468     SetViewportExtEx(hdc, cx, cy, NULL);
 469     GetViewportExtEx(hdc, &viewportExt);
 470     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 471         "Viewport extents have not been properly adjusted: Expected %ldx%ld, got %ldx%ld\n",
 472         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 473
 474     GetWindowExtEx(hdc, &windowExtAfter);
 475     ok(windowExt.cx == windowExtAfter.cx && windowExt.cy == windowExtAfter.cy,
 476        "Window extension changed from %ldx%ld to %ldx%ld\n",
 477        windowExt.cx, windowExt.cy, windowExtAfter.cx, windowExtAfter.cy);
 478
 479     GetWindowOrgEx(hdc, &windowOrgAfter);
 480     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 481         "Window origin changed from (%ld,%ld) to (%ld,%ld)\n",
 482         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 483
 484     GetViewportOrgEx(hdc, &viewportOrgAfter);
 485     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 486         "Viewport origin changed from (%ld,%ld) to (%ld,%ld)\n",
 487         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 488 }
 489
 490 static void test_isotropic_mapping(void)
 491 {
 492     SIZE win, vp;
 493     HDC hdc = GetDC(0);
 494
 495     SetMapMode(hdc, MM_ISOTROPIC);
 496
 497     /* MM_ISOTROPIC is set up like MM_LOMETRIC.
 498        Initial values after SetMapMode():
 499        (1 inch = 25.4 mm)
 500
 501                        Windows 9x:               Windows NT:
 502        Window Ext:     254 x -254                HORZSIZE*10 x VERTSIZE*10
 503        Viewport Ext:   LOGPIXELSX x LOGPIXELSY   HORZRES x -VERTRES
 504
 505        To test without rounding errors, we have to use multiples of
 506        these values!
 507      */
 508
 509     GetWindowExtEx(hdc, &win);
 510     GetViewportExtEx(hdc, &vp);
 511
 512     test_SetViewportExt(hdc, 10 * vp.cx, 10 * vp.cy, 10 * vp.cx, 10 * vp.cy);
 513     test_SetWindowExt(hdc, win.cx, win.cy, 10 * vp.cx, 10 * vp.cy);
 514     test_SetWindowExt(hdc, 2 * win.cx, win.cy, 10 * vp.cx, 5 * vp.cy);
 515     test_SetWindowExt(hdc, win.cx, win.cy, 5 * vp.cx, 5 * vp.cy);
 516     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 517     test_SetViewportExt(hdc, vp.cx, 2 * vp.cy, vp.cx, vp.cy);
 518     test_SetViewportExt(hdc, 2 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 519     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 520     test_SetWindowExt(hdc, 4 * win.cx, 2 * win.cy, 2 * vp.cx, vp.cy);
 521     test_SetViewportExt(hdc, -2 * vp.cx, -4 * vp.cy, -2 * vp.cx, -vp.cy);
 522     test_SetViewportExt(hdc, -2 * vp.cx, -1 * vp.cy, -2 * vp.cx, -vp.cy);
 523     test_SetWindowExt(hdc, -4 * win.cx, -2 * win.cy, -2 * vp.cx, -vp.cy);
 524     test_SetWindowExt(hdc, 4 * win.cx, -4 * win.cy, -vp.cx, -vp.cy);
 525
 526     ReleaseDC(0, hdc);
 527 }
 528
 529 static void test_setvirtualresolution(void)
 530 {
 531     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 532     BOOL r;
 533     INT horz_res = GetDeviceCaps(hdc, HORZRES);
 534     INT horz_size = GetDeviceCaps(hdc, HORZSIZE);
 535     INT log_pixels_x = GetDeviceCaps(hdc, LOGPIXELSX);
 536     SIZE orig_lometric_vp, orig_lometric_wnd;
 537
 538     if(!pSetVirtualResolution)
 539     {
 540         win_skip("Don't have SetVirtualResolution\n");
 541         return;
 542     }
 543
 544     /* Get the true resolution limits */
 545     SetMapMode(hdc, MM_LOMETRIC);
 546     GetViewportExtEx(hdc, &orig_lometric_vp);
 547     GetWindowExtEx(hdc, &orig_lometric_wnd);
 548     SetMapMode(hdc, MM_TEXT);
 549
 550     r = pSetVirtualResolution(hdc, 4000, 1000, 400, 200); /* 10 pix/mm x 5 pix/mm */
 551     ok(r == TRUE, "got %d\n", r);
 552     expect_LPtoDP(hdc, 1000, 1000);
 553     expect_viewport_ext(hdc, 1l, 1l);
 554     expect_window_ext(hdc, 1l, 1l);
 555
 556     SetMapMode(hdc, MM_LOMETRIC);
 557     expect_LPtoDP(hdc, 1000, -500);
 558     expect_viewport_ext(hdc, 4000l, -1000l);
 559     expect_window_ext(hdc, 4000l, 2000l);
 560
 561     /* Doesn't change the device caps */
 562     ok(horz_res == GetDeviceCaps(hdc, HORZRES), "horz_res changed\n");
 563     ok(horz_size == GetDeviceCaps(hdc, HORZSIZE), "horz_size changed\n");
 564     ok(log_pixels_x == GetDeviceCaps(hdc, LOGPIXELSX), "log_pixels_x changed\n");
 565
 566     r = pSetVirtualResolution(hdc, 8000, 1000, 400, 200); /* 20 pix/mm x 5 pix/mm */
 567     ok(r == TRUE, "got %d\n", r);
 568     expect_LPtoDP(hdc, 1000, -500); /* No change, need to re-set the mapping mode */
 569     SetMapMode(hdc, MM_TEXT);
 570     SetMapMode(hdc, MM_LOMETRIC);
 571     expect_LPtoDP(hdc, 2000, -500);
 572     expect_viewport_ext(hdc, 8000l, -1000l);
 573     expect_window_ext(hdc, 4000l, 2000l);
 574
 575     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 576     ok(r == TRUE, "got %d\n", r);
 577     SetMapMode(hdc, MM_TEXT);
 578     SetMapMode(hdc, MM_LOMETRIC);
 579     expect_LPtoDP(hdc, 4000, -500);
 580     expect_viewport_ext(hdc, 8000l, -1000l);
 581     expect_window_ext(hdc, 2000l, 2000l);
 582
 583     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 584     ok(r == TRUE, "got %d\n", r);
 585     SetMapMode(hdc, MM_TEXT);
 586     SetMapMode(hdc, MM_LOMETRIC);
 587     expect_LPtoDP(hdc, 4000, -500);
 588     expect_viewport_ext(hdc, 8000l, -1000l);
 589     expect_window_ext(hdc, 2000l, 2000l);
 590
 591     r = pSetVirtualResolution(hdc, 8000, 2000, 200, 200); /* 40 pix/mm x 10 pix/mm */
 592     ok(r == TRUE, "got %d\n", r);
 593     SetMapMode(hdc, MM_TEXT);
 594     SetMapMode(hdc, MM_LOMETRIC);
 595     expect_LPtoDP(hdc, 4000, -1000);
 596     expect_viewport_ext(hdc, 8000l, -2000l);
 597     expect_window_ext(hdc, 2000l, 2000l);
 598
 599     r = pSetVirtualResolution(hdc, 0, 0, 10, 0); /* Error */
 600     ok(r == FALSE, "got %d\n", r);
 601     SetMapMode(hdc, MM_TEXT);
 602     SetMapMode(hdc, MM_LOMETRIC);
 603     expect_LPtoDP(hdc, 4000, -1000);
 604     expect_viewport_ext(hdc, 8000l, -2000l);
 605     expect_window_ext(hdc, 2000l, 2000l);
 606
 607     r = pSetVirtualResolution(hdc, 0, 0, 0, 0); /* Reset to true resolution */
 608     ok(r == TRUE, "got %d\n", r);
 609     SetMapMode(hdc, MM_TEXT);
 610     SetMapMode(hdc, MM_LOMETRIC);
 611     expect_viewport_ext(hdc, orig_lometric_vp.cx, orig_lometric_vp.cy);
 612     expect_window_ext(hdc, orig_lometric_wnd.cx, orig_lometric_wnd.cy);
 613
 614     DeleteDC(hdc);
 615 }
 616
 617
 618 static inline void expect_identity(int line, XFORM *xf)
 619 {
 620     ok(xf->eM11 == 1.0, "%d: got %f\n", line, xf->eM11);
 621     ok(xf->eM12 == 0.0, "%d: got %f\n", line, xf->eM12);
 622     ok(xf->eM21 == 0.0, "%d: got %f\n", line, xf->eM21);
 623     ok(xf->eM22 == 1.0, "%d: got %f\n", line, xf->eM22);
 624     ok(xf->eDx == 0.0, "%d: got %f\n", line, xf->eDx);
 625     ok(xf->eDy == 0.0, "%d: got %f\n", line, xf->eDy);
 626 }
 627
 628 static inline void xform_near_match(int line, XFORM *got, XFORM *expect)
 629 {
 630     ok(fabs(got->eM11 - expect->eM11) < 0.001, "%d: got %f expect %f\n", line, got->eM11, expect->eM11);
 631     ok(fabs(got->eM12 - expect->eM12) < 0.001, "%d: got %f expect %f\n", line, got->eM12, expect->eM12);
 632     ok(fabs(got->eM21 - expect->eM21) < 0.001, "%d: got %f expect %f\n", line, got->eM21, expect->eM21);
 633     ok(fabs(got->eM22 - expect->eM22) < 0.001, "%d: got %f expect %f\n", line, got->eM22, expect->eM22);
 634     ok(fabs(got->eDx - expect->eDx) < 0.001, "%d: got %f expect %f\n", line, got->eDx, expect->eDx);
 635     ok(fabs(got->eDy - expect->eDy) < 0.001, "%d: got %f expect %f\n", line, got->eDy, expect->eDy);
 636 }
 637
 638
 639 static void test_gettransform(void)
 640 {
 641     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 642     XFORM xform, expect;
 643     BOOL r;
 644     SIZE lometric_vp, lometric_wnd;
 645
 646     if(!pGetTransform)
 647     {
 648         win_skip("Don't have GetTransform\n");
 649         return;
 650     }
 651
 652     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 653     ok(r == TRUE, "got %d\n", r);
 654     expect_identity(__LINE__, &xform);
 655     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 656     ok(r == TRUE, "got %d\n", r);
 657     expect_identity(__LINE__, &xform);
 658     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 659     ok(r == TRUE, "got %d\n", r);
 660     expect_identity(__LINE__, &xform);
 661     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 662     ok(r == TRUE, "got %d\n", r);
 663     expect_identity(__LINE__, &xform);
 664
 665     SetMapMode(hdc, MM_LOMETRIC);
 666     GetViewportExtEx(hdc, &lometric_vp);
 667     GetWindowExtEx(hdc, &lometric_wnd);
 668
 669     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 670     ok(r == TRUE, "got %d\n", r);
 671     expect_identity(__LINE__, &xform);
 672
 673     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 674     ok(r == TRUE, "got %d\n", r);
 675     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 676     expect.eM12 = expect.eM21 = 0.0;
 677     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 678     expect.eDx = expect.eDy = 0.0;
 679     xform_near_match(__LINE__, &xform, &expect);
 680
 681     r = pGetTransform(hdc, 0x204, &xform);  /* World -> Device */
 682     ok(r == TRUE, "got %d\n", r);
 683     xform_near_match(__LINE__, &xform, &expect);
 684
 685     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 686     ok(r == TRUE, "got %d\n", r);
 687     expect.eM11 = (FLOAT) lometric_wnd.cx / lometric_vp.cx;
 688     expect.eM22 = (FLOAT) lometric_wnd.cy / lometric_vp.cy;
 689     xform_near_match(__LINE__, &xform, &expect);
 690
 691
 692     SetGraphicsMode(hdc, GM_ADVANCED);
 693
 694     expect.eM11 = 10.0;
 695     expect.eM22 = 20.0;
 696     SetWorldTransform(hdc, &expect);
 697     r = pGetTransform(hdc, 0x203, &xform);  /* World -> Page */
 698     ok(r == TRUE, "got %d\n", r);
 699     xform_near_match(__LINE__, &xform, &expect);
 700
 701     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 702     ok(r == TRUE, "got %d\n", r);
 703     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 704     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 705     xform_near_match(__LINE__, &xform, &expect);
 706
 707     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 708     ok(r == TRUE, "got %d\n", r);
 709     expect.eM11 *= 10.0;
 710     expect.eM22 *= 20.0;
 711     xform_near_match(__LINE__, &xform, &expect);
 712
 713     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 714     ok(r == TRUE, "got %d\n", r);
 715     expect.eM11 = 1 / expect.eM11;
 716     expect.eM22 = 1 / expect.eM22;
 717     xform_near_match(__LINE__, &xform, &expect);
 718
 719     r = pGetTransform(hdc, 0x102, &xform);
 720     ok(r == FALSE, "got %d\n", r);
 721     r = pGetTransform(hdc, 0x103, &xform);
 722     ok(r == FALSE, "got %d\n", r);
 723     r = pGetTransform(hdc, 0x104, &xform);
 724     ok(r == FALSE, "got %d\n", r);
 725     r = pGetTransform(hdc, 0x202, &xform);
 726     ok(r == FALSE, "got %d\n", r);
 727     r = pGetTransform(hdc, 0x302, &xform);
 728     ok(r == FALSE, "got %d\n", r);
 729     r = pGetTransform(hdc, 0x303, &xform);
 730     ok(r == FALSE, "got %d\n", r);
 731     r = pGetTransform(hdc, 0x403, &xform);
 732     ok(r == FALSE, "got %d\n", r);
 733     r = pGetTransform(hdc, 0x404, &xform);
 734     ok(r == FALSE, "got %d\n", r);
 735     r = pGetTransform(hdc, 0xffff, &xform);
 736     ok(r == FALSE, "got %d\n", r);
 737 }
 738
 739 START_TEST(mapping)
 740 {
 741     HMODULE mod = GetModuleHandleA("gdi32.dll");
 742     pGetLayout = (void *)GetProcAddress( mod, "GetLayout" );
 743     pGetRandomRgn = (void *)GetProcAddress( mod, "GetRandomRgn" );
 744     pGetTransform = (void *)GetProcAddress( mod, "GetTransform" );
 745     pSetVirtualResolution = (void *)GetProcAddress( mod, "SetVirtualResolution" );
 746
 747     test_modify_world_transform();
 748     test_world_transform();
 749     test_dc_layout();
 750     test_isotropic_mapping();
 751     test_setvirtualresolution();
 752     test_gettransform();
 753 }