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 %d\n", (_x), _pt.x); \
  43     ok(rough_match(_pt.y, _y), "expected y %d, got %d\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 %u\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 %u\n", GetLastError()); \
  71     ok(_size.cx == (_cx), "expected cx %d, got %d\n", (_cx), _size.cx); \
  72     ok(_size.cy == (_cy), "expected cy %d, got %d\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, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
  82     XFORM xform;
  83     SIZE size;
  84
  85     hdc = CreateCompatibleDC(0);
  86
  87     xform.eM11 = 1.0f;
  88     xform.eM12 = 0.0f;
  89     xform.eM21 = 0.0f;
  90     xform.eM22 = 1.0f;
  91     xform.eDx = 0.0f;
  92     xform.eDy = 0.0f;
  93     ret = SetWorldTransform(hdc, &xform);
  94     ok(!ret, "SetWorldTransform should fail in GM_COMPATIBLE mode\n");
  95
  96     size_cx = GetDeviceCaps(hdc, HORZSIZE);
  97     size_cy = GetDeviceCaps(hdc, VERTSIZE);
  98     res_x = GetDeviceCaps(hdc, HORZRES);
  99     res_y = GetDeviceCaps(hdc, VERTRES);
 100     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
 101     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
 102     trace("dc size %d x %d, resolution %d x %d dpi %d x %d\n",
 103           size_cx, size_cy, res_x, res_y, dpi_x, dpi_y );
 104
 105     expect_viewport_ext(hdc, 1, 1);
 106     expect_window_ext(hdc, 1, 1);
 107     expect_world_transform(hdc, 1.0, 1.0);
 108     expect_LPtoDP(hdc, 1000, 1000);
 109
 110     SetLastError(0xdeadbeef);
 111     ret = SetMapMode(hdc, MM_LOMETRIC);
 112     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 113
 114     expect_viewport_ext(hdc, res_x, -res_y);
 115     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 116     ok( rough_match( size.cx, size_cx * 10 ) ||
 117         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 118         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 119     ok( rough_match( size.cy, size_cy * 10 ) ||
 120         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 121         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 122     expect_world_transform(hdc, 1.0, 1.0);
 123     expect_LPtoDP(hdc, MulDiv(1000 / 10, res_x, size_cx), -MulDiv(1000 / 10, res_y, size_cy));
 124
 125     SetLastError(0xdeadbeef);
 126     ret = SetMapMode(hdc, MM_TEXT);
 127     ok(ret == MM_LOMETRIC, "expected MM_LOMETRIC, got %d\n", ret);
 128
 129     expect_viewport_ext(hdc, 1, 1);
 130     expect_window_ext(hdc, 1, 1);
 131     expect_world_transform(hdc, 1.0, 1.0);
 132     expect_LPtoDP(hdc, 1000, 1000);
 133
 134     ret = SetGraphicsMode(hdc, GM_ADVANCED);
 135     if (!ret)
 136     {
 137         DeleteDC(hdc);
 138         skip("GM_ADVANCED is not supported on this platform\n");
 139         return;
 140     }
 141
 142     expect_viewport_ext(hdc, 1, 1);
 143     expect_window_ext(hdc, 1, 1);
 144     expect_world_transform(hdc, 1.0, 1.0);
 145     expect_LPtoDP(hdc, 1000, 1000);
 146
 147     /* The transform must conform to (eM11 * eM22 != eM12 * eM21) requirement */
 148     xform.eM11 = 1.0f;
 149     xform.eM12 = 2.0f;
 150     xform.eM21 = 1.0f;
 151     xform.eM22 = 2.0f;
 152     xform.eDx = 0.0f;
 153     xform.eDy = 0.0f;
 154     ret = SetWorldTransform(hdc, &xform);
 155     ok(!ret ||
 156        broken(ret), /* NT4 */
 157        "SetWorldTransform should fail with an invalid xform\n");
 158
 159     xform.eM11 = 20.0f;
 160     xform.eM12 = 0.0f;
 161     xform.eM21 = 0.0f;
 162     xform.eM22 = 20.0f;
 163     xform.eDx = 0.0f;
 164     xform.eDy = 0.0f;
 165     SetLastError(0xdeadbeef);
 166     ret = SetWorldTransform(hdc, &xform);
 167     ok(ret, "SetWorldTransform error %u\n", GetLastError());
 168
 169     expect_viewport_ext(hdc, 1, 1);
 170     expect_window_ext(hdc, 1, 1);
 171     expect_world_transform(hdc, 20.0, 20.0);
 172     expect_LPtoDP(hdc, 20000, 20000);
 173
 174     SetLastError(0xdeadbeef);
 175     ret = SetMapMode(hdc, MM_LOMETRIC);
 176     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 177
 178     expect_viewport_ext(hdc, res_x, -res_y);
 179     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 180     ok( rough_match( size.cx, size_cx * 10 ) ||
 181         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 182         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 183     ok( rough_match( size.cy, size_cy * 10 ) ||
 184         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 185         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 186     expect_world_transform(hdc, 20.0, 20.0);
 187     expect_LPtoDP(hdc, MulDiv(20000, res_x, size.cx), -MulDiv(20000, res_y, size.cy));
 188
 189     SetLastError(0xdeadbeef);
 190     ret = SetMapMode(hdc, MM_TEXT);
 191     ok(ret == MM_LOMETRIC, "expected MM_LOMETRIC, got %d\n", ret);
 192
 193     expect_viewport_ext(hdc, 1, 1);
 194     expect_window_ext(hdc, 1, 1);
 195     expect_world_transform(hdc, 20.0, 20.0);
 196     expect_LPtoDP(hdc, 20000, 20000);
 197
 198     size.cx = 0xdeadbeef;
 199     size.cy = 0xdeadbeef;
 200     ret = SetViewportExtEx(hdc, -1, -1, &size);
 201     ok(ret, "SetViewportExtEx(-1, -1) failed\n");
 202     ok(size.cx == 1 && size.cy == 1, "expected 1,1 got %d,%d\n", size.cx, size.cy);
 203     expect_viewport_ext(hdc, 1, 1);
 204     expect_window_ext(hdc, 1, 1);
 205     expect_world_transform(hdc, 20.0, 20.0);
 206     expect_LPtoDP(hdc, 20000, 20000);
 207
 208     ret = SetMapMode(hdc, MM_ANISOTROPIC);
 209     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 210
 211     expect_viewport_ext(hdc, 1, 1);
 212     expect_window_ext(hdc, 1, 1);
 213     expect_world_transform(hdc, 20.0, 20.0);
 214     expect_LPtoDP(hdc, 20000, 20000);
 215
 216     size.cx = 0xdeadbeef;
 217     size.cy = 0xdeadbeef;
 218     ret = SetViewportExtEx(hdc, -1, -1, &size);
 219     ok(ret, "SetViewportExtEx(-1, -1) failed\n");
 220     ok(size.cx == 1 && size.cy == 1, "expected 1,1 got %d,%d\n", size.cx, size.cy);
 221     expect_viewport_ext(hdc, -1, -1);
 222     expect_window_ext(hdc, 1, 1);
 223     expect_world_transform(hdc, 20.0, 20.0);
 224     expect_LPtoDP(hdc, -20000, -20000);
 225
 226     ret = SetGraphicsMode(hdc, GM_COMPATIBLE);
 227     ok(ret, "SetGraphicsMode(GM_COMPATIBLE) should not fail if DC has't an identity transform\n");
 228     ret = GetGraphicsMode(hdc);
 229     ok(ret == GM_COMPATIBLE, "expected GM_COMPATIBLE, got %d\n", ret);
 230
 231     expect_viewport_ext(hdc, -1, -1);
 232     expect_window_ext(hdc, 1, 1);
 233     expect_world_transform(hdc, 20.0, 20.0);
 234     expect_LPtoDP(hdc, -20000, -20000);
 235
 236     DeleteDC(hdc);
 237 }
 238
 239 static void test_dc_layout(void)
 240 {
 241     INT ret, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
 242     SIZE size;
 243     POINT pt;
 244     HBITMAP bitmap;
 245     RECT rc, ret_rc;
 246     HDC hdc;
 247     HRGN hrgn;
 248
 249     if (!pGetLayout)
 250     {
 251         win_skip( "Don't have GetLayout\n" );
 252         return;
 253     }
 254
 255     hdc = CreateCompatibleDC(0);
 256     bitmap = CreateCompatibleBitmap( hdc, 100, 100 );
 257     SelectObject( hdc, bitmap );
 258
 259     size_cx = GetDeviceCaps(hdc, HORZSIZE);
 260     size_cy = GetDeviceCaps(hdc, VERTSIZE);
 261     res_x = GetDeviceCaps(hdc, HORZRES);
 262     res_y = GetDeviceCaps(hdc, VERTRES);
 263     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
 264     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
 265
 266     ret = GetMapMode( hdc );
 267     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 268     expect_viewport_ext(hdc, 1, 1);
 269     expect_window_ext(hdc, 1, 1);
 270     expect_world_transform(hdc, 1.0, 1.0);
 271     expect_LPtoDP(hdc, 1000, 1000);
 272
 273     SetLayout( hdc, LAYOUT_RTL );
 274     if (!pGetLayout( hdc ))
 275     {
 276         win_skip( "SetLayout not supported\n" );
 277         DeleteDC(hdc);
 278         return;
 279     }
 280
 281     ret = GetMapMode( hdc );
 282     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 283     ret = pGetLayout( hdc );
 284     ok(ret == LAYOUT_RTL, "got %x\n", ret);
 285     expect_viewport_ext(hdc, 1, 1);
 286     expect_window_ext(hdc, 1, 1);
 287     expect_world_transform(hdc, 1.0, 1.0);
 288     expect_LPtoDP(hdc, -1000 + 99, 1000);
 289     GetViewportOrgEx( hdc, &pt );
 290     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 291     GetWindowOrgEx( hdc, &pt );
 292     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 293     GetDCOrgEx( hdc, &pt );
 294     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 295     if (pGetTransform)
 296     {
 297         XFORM xform;
 298         BOOL ret = pGetTransform( hdc, 0x204, &xform ); /* World -> Device */
 299         ok( ret, "got %d\n", ret );
 300         ok( xform.eM11 == -1.0, "got %f\n", xform.eM11 );
 301         ok( xform.eM12 == 0.0, "got %f\n", xform.eM12 );
 302         ok( xform.eM21 == 0.0, "got %f\n", xform.eM21 );
 303         ok( xform.eM22 == 1.0, "got %f\n", xform.eM22 );
 304         ok( xform.eDx == 99.0, "got %f\n", xform.eDx );
 305         ok( xform.eDy == 0.0, "got %f\n", xform.eDy );
 306     }
 307
 308     SetRect( &rc, 10, 10, 20, 20 );
 309     IntersectClipRect( hdc, 10, 10, 20, 20 );
 310     hrgn = CreateRectRgn( 0, 0, 0, 0 );
 311     GetClipRgn( hdc, hrgn );
 312     GetRgnBox( hrgn, &ret_rc );
 313     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 314     SetLayout( hdc, LAYOUT_LTR );
 315     SetRect( &rc, 80, 10, 90, 20 );
 316     GetClipRgn( hdc, hrgn );
 317     GetRgnBox( hrgn, &ret_rc );
 318     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 319     GetClipBox( hdc, &ret_rc );
 320     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 321     IntersectClipRect( hdc, 80, 10, 85, 20 );
 322     SetLayout( hdc, LAYOUT_RTL );
 323     SetRect( &rc, 15, 10, 20, 20 );
 324     GetClipRgn( hdc, hrgn );
 325     GetRgnBox( hrgn, &ret_rc );
 326     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 327     GetClipBox( hdc, &ret_rc );
 328     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 329     SetRectRgn( hrgn, 60, 10, 80, 20 );
 330     SetLayout( hdc, LAYOUT_LTR );
 331     ExtSelectClipRgn( hdc, hrgn, RGN_OR );
 332     SetLayout( hdc, LAYOUT_RTL );
 333     SetRect( &rc, 15, 10, 40, 20 );
 334     GetClipRgn( hdc, hrgn );
 335     GetRgnBox( hrgn, &ret_rc );
 336     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 337     GetClipBox( hdc, &ret_rc );
 338     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 339
 340     /* OffsetClipRgn mirrors too */
 341     OffsetClipRgn( hdc, 5, 5 );
 342     OffsetRect( &rc, 5, 5 );
 343     GetClipRgn( hdc, hrgn );
 344     GetRgnBox( hrgn, &ret_rc );
 345     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 346
 347     /* GetRandomRgn returns the raw region */
 348     if (pGetRandomRgn)
 349     {
 350         SetRect( &rc, 55, 15, 80, 25 );
 351         pGetRandomRgn( hdc, hrgn, 1 );
 352         GetRgnBox( hrgn, &ret_rc );
 353         ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 354     }
 355
 356     SetMapMode(hdc, MM_LOMETRIC);
 357     ret = GetMapMode( hdc );
 358     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 359
 360     expect_viewport_ext(hdc, res_x, -res_y);
 361     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 362     ok( rough_match( size.cx, size_cx * 10 ) ||
 363         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 364         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 365     ok( rough_match( size.cy, size_cy * 10 ) ||
 366         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 367         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 368     expect_world_transform(hdc, 1.0, 1.0);
 369     expect_LPtoDP(hdc, -MulDiv(1000 / 10, res_x, size_cx) + 99, -MulDiv(1000 / 10, res_y, size_cy));
 370
 371     SetMapMode(hdc, MM_TEXT);
 372     ret = GetMapMode( hdc );
 373     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 374     SetLayout( hdc, LAYOUT_LTR );
 375     ret = GetMapMode( hdc );
 376     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 377     SetMapMode(hdc, MM_TEXT);
 378     ret = GetMapMode( hdc );
 379     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 380
 381     DeleteDC(hdc);
 382     DeleteObject( bitmap );
 383 }
 384
 385 static void test_modify_world_transform(void)
 386 {
 387     HDC hdc = GetDC(0);
 388     XFORM xform, xform2;
 389     int ret;
 390
 391     ret = SetGraphicsMode(hdc, GM_ADVANCED);
 392     ok(ret, "ret = %d\n", ret);
 393
 394     ret = ModifyWorldTransform(hdc, NULL, MWT_IDENTITY);
 395     ok(ret, "ret = %d\n", ret);
 396
 397     ret = ModifyWorldTransform(hdc, NULL, MWT_LEFTMULTIPLY);
 398     ok(!ret, "ret = %d\n", ret);
 399
 400     ret = ModifyWorldTransform(hdc, NULL, MWT_RIGHTMULTIPLY);
 401     ok(!ret, "ret = %d\n", ret);
 402
 403     xform.eM11 = 2;
 404     xform.eM12 = 0;
 405     xform.eM21 = 0;
 406     xform.eM22 = 1;
 407     xform.eDx = xform.eDy = 0;
 408     ret = ModifyWorldTransform(hdc, &xform, 4);
 409     ok(ret, "ModifyWorldTransform failed\n");
 410
 411     memset(&xform2, 0xcc, sizeof(xform2));
 412     ret = GetWorldTransform(hdc, &xform2);
 413     ok(ret, "GetWorldTransform failed\n");
 414     ok(!memcmp(&xform, &xform2, sizeof(xform)), "unexpected xform\n");
 415
 416     xform.eM11 = 1;
 417     xform.eM12 = 1;
 418     xform.eM21 = 1;
 419     xform.eM22 = 1;
 420     xform.eDx = xform.eDy = 0;
 421     ret = ModifyWorldTransform(hdc, &xform, 4);
 422     ok(!ret, "ModifyWorldTransform succeeded\n");
 423
 424     ReleaseDC(0, hdc);
 425 }
 426
 427 static void test_SetWindowExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 428 {
 429     SIZE windowExt, viewportExt;
 430     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 431
 432     GetWindowOrgEx(hdc, &windowOrg);
 433     GetViewportOrgEx(hdc, &viewportOrg);
 434
 435     SetWindowExtEx(hdc, cx, cy, NULL);
 436     GetWindowExtEx(hdc, &windowExt);
 437     ok(windowExt.cx == cx && windowExt.cy == cy,
 438        "Window extension: Expected %dx%d, got %dx%d\n",
 439        cx, cy, windowExt.cx, windowExt.cy);
 440
 441     GetViewportExtEx(hdc, &viewportExt);
 442     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 443         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 444         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 445
 446     GetWindowOrgEx(hdc, &windowOrgAfter);
 447     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 448         "Window origin changed from (%d,%d) to (%d,%d)\n",
 449         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 450
 451     GetViewportOrgEx(hdc, &viewportOrgAfter);
 452     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 453         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
 454         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 455 }
 456
 457 static void test_SetViewportExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 458 {
 459     SIZE windowExt, windowExtAfter, viewportExt;
 460     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 461
 462     GetWindowOrgEx(hdc, &windowOrg);
 463     GetViewportOrgEx(hdc, &viewportOrg);
 464     GetWindowExtEx(hdc, &windowExt);
 465
 466     SetViewportExtEx(hdc, cx, cy, NULL);
 467     GetViewportExtEx(hdc, &viewportExt);
 468     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 469         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 470         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 471
 472     GetWindowExtEx(hdc, &windowExtAfter);
 473     ok(windowExt.cx == windowExtAfter.cx && windowExt.cy == windowExtAfter.cy,
 474        "Window extension changed from %dx%d to %dx%d\n",
 475        windowExt.cx, windowExt.cy, windowExtAfter.cx, windowExtAfter.cy);
 476
 477     GetWindowOrgEx(hdc, &windowOrgAfter);
 478     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 479         "Window origin changed from (%d,%d) to (%d,%d)\n",
 480         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 481
 482     GetViewportOrgEx(hdc, &viewportOrgAfter);
 483     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 484         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
 485         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 486 }
 487
 488 static void test_isotropic_mapping(void)
 489 {
 490     SIZE win, vp;
 491     HDC hdc = GetDC(0);
 492
 493     SetMapMode(hdc, MM_ISOTROPIC);
 494
 495     /* MM_ISOTROPIC is set up like MM_LOMETRIC.
 496        Initial values after SetMapMode():
 497        (1 inch = 25.4 mm)
 498
 499                        Windows 9x:               Windows NT:
 500        Window Ext:     254 x -254                HORZSIZE*10 x VERTSIZE*10
 501        Viewport Ext:   LOGPIXELSX x LOGPIXELSY   HORZRES x -VERTRES
 502
 503        To test without rounding errors, we have to use multiples of
 504        these values!
 505      */
 506
 507     GetWindowExtEx(hdc, &win);
 508     GetViewportExtEx(hdc, &vp);
 509
 510     test_SetViewportExt(hdc, 10 * vp.cx, 10 * vp.cy, 10 * vp.cx, 10 * vp.cy);
 511     test_SetWindowExt(hdc, win.cx, win.cy, 10 * vp.cx, 10 * vp.cy);
 512     test_SetWindowExt(hdc, 2 * win.cx, win.cy, 10 * vp.cx, 5 * vp.cy);
 513     test_SetWindowExt(hdc, win.cx, win.cy, 5 * vp.cx, 5 * vp.cy);
 514     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 515     test_SetViewportExt(hdc, vp.cx, 2 * vp.cy, vp.cx, vp.cy);
 516     test_SetViewportExt(hdc, 2 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 517     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 518     test_SetWindowExt(hdc, 4 * win.cx, 2 * win.cy, 2 * vp.cx, vp.cy);
 519     test_SetViewportExt(hdc, -2 * vp.cx, -4 * vp.cy, -2 * vp.cx, -vp.cy);
 520     test_SetViewportExt(hdc, -2 * vp.cx, -1 * vp.cy, -2 * vp.cx, -vp.cy);
 521     test_SetWindowExt(hdc, -4 * win.cx, -2 * win.cy, -2 * vp.cx, -vp.cy);
 522     test_SetWindowExt(hdc, 4 * win.cx, -4 * win.cy, -vp.cx, -vp.cy);
 523
 524     ReleaseDC(0, hdc);
 525 }
 526
 527 static void test_setvirtualresolution(void)
 528 {
 529     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 530     BOOL r;
 531     INT horz_res = GetDeviceCaps(hdc, HORZRES);
 532     INT horz_size = GetDeviceCaps(hdc, HORZSIZE);
 533     INT log_pixels_x = GetDeviceCaps(hdc, LOGPIXELSX);
 534     SIZE orig_lometric_vp, orig_lometric_wnd;
 535
 536     if(!pSetVirtualResolution)
 537     {
 538         win_skip("Don't have SetVirtualResolution\n");
 539         return;
 540     }
 541
 542     /* Get the true resolution limits */
 543     SetMapMode(hdc, MM_LOMETRIC);
 544     GetViewportExtEx(hdc, &orig_lometric_vp);
 545     GetWindowExtEx(hdc, &orig_lometric_wnd);
 546     SetMapMode(hdc, MM_TEXT);
 547
 548     r = pSetVirtualResolution(hdc, 4000, 1000, 400, 200); /* 10 pix/mm x 5 pix/mm */
 549     ok(r == TRUE, "got %d\n", r);
 550     expect_LPtoDP(hdc, 1000, 1000);
 551     expect_viewport_ext(hdc, 1, 1);
 552     expect_window_ext(hdc, 1, 1);
 553
 554     SetMapMode(hdc, MM_LOMETRIC);
 555     expect_LPtoDP(hdc, 1000, -500);
 556     expect_viewport_ext(hdc, 4000, -1000);
 557     expect_window_ext(hdc, 4000, 2000);
 558
 559     /* Doesn't change the device caps */
 560     ok(horz_res == GetDeviceCaps(hdc, HORZRES), "horz_res changed\n");
 561     ok(horz_size == GetDeviceCaps(hdc, HORZSIZE), "horz_size changed\n");
 562     ok(log_pixels_x == GetDeviceCaps(hdc, LOGPIXELSX), "log_pixels_x changed\n");
 563
 564     r = pSetVirtualResolution(hdc, 8000, 1000, 400, 200); /* 20 pix/mm x 5 pix/mm */
 565     ok(r == TRUE, "got %d\n", r);
 566     expect_LPtoDP(hdc, 1000, -500); /* No change, need to re-set the mapping mode */
 567     SetMapMode(hdc, MM_TEXT);
 568     SetMapMode(hdc, MM_LOMETRIC);
 569     expect_LPtoDP(hdc, 2000, -500);
 570     expect_viewport_ext(hdc, 8000, -1000);
 571     expect_window_ext(hdc, 4000, 2000);
 572
 573     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 574     ok(r == TRUE, "got %d\n", r);
 575     SetMapMode(hdc, MM_TEXT);
 576     SetMapMode(hdc, MM_LOMETRIC);
 577     expect_LPtoDP(hdc, 4000, -500);
 578     expect_viewport_ext(hdc, 8000, -1000);
 579     expect_window_ext(hdc, 2000, 2000);
 580
 581     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 582     ok(r == TRUE, "got %d\n", r);
 583     SetMapMode(hdc, MM_TEXT);
 584     SetMapMode(hdc, MM_LOMETRIC);
 585     expect_LPtoDP(hdc, 4000, -500);
 586     expect_viewport_ext(hdc, 8000, -1000);
 587     expect_window_ext(hdc, 2000, 2000);
 588
 589     r = pSetVirtualResolution(hdc, 8000, 2000, 200, 200); /* 40 pix/mm x 10 pix/mm */
 590     ok(r == TRUE, "got %d\n", r);
 591     SetMapMode(hdc, MM_TEXT);
 592     SetMapMode(hdc, MM_LOMETRIC);
 593     expect_LPtoDP(hdc, 4000, -1000);
 594     expect_viewport_ext(hdc, 8000, -2000);
 595     expect_window_ext(hdc, 2000, 2000);
 596
 597     r = pSetVirtualResolution(hdc, 0, 0, 10, 0); /* Error */
 598     ok(r == FALSE, "got %d\n", r);
 599     SetMapMode(hdc, MM_TEXT);
 600     SetMapMode(hdc, MM_LOMETRIC);
 601     expect_LPtoDP(hdc, 4000, -1000);
 602     expect_viewport_ext(hdc, 8000, -2000);
 603     expect_window_ext(hdc, 2000, 2000);
 604
 605     r = pSetVirtualResolution(hdc, 0, 0, 0, 0); /* Reset to true resolution */
 606     ok(r == TRUE, "got %d\n", r);
 607     SetMapMode(hdc, MM_TEXT);
 608     SetMapMode(hdc, MM_LOMETRIC);
 609     expect_viewport_ext(hdc, orig_lometric_vp.cx, orig_lometric_vp.cy);
 610     expect_window_ext(hdc, orig_lometric_wnd.cx, orig_lometric_wnd.cy);
 611
 612     DeleteDC(hdc);
 613 }
 614
 615
 616 static inline void expect_identity(int line, XFORM *xf)
 617 {
 618     ok(xf->eM11 == 1.0, "%d: got %f\n", line, xf->eM11);
 619     ok(xf->eM12 == 0.0, "%d: got %f\n", line, xf->eM12);
 620     ok(xf->eM21 == 0.0, "%d: got %f\n", line, xf->eM21);
 621     ok(xf->eM22 == 1.0, "%d: got %f\n", line, xf->eM22);
 622     ok(xf->eDx == 0.0, "%d: got %f\n", line, xf->eDx);
 623     ok(xf->eDy == 0.0, "%d: got %f\n", line, xf->eDy);
 624 }
 625
 626 static inline void xform_near_match(int line, XFORM *got, XFORM *expect)
 627 {
 628     ok(fabs(got->eM11 - expect->eM11) < 0.001, "%d: got %f expect %f\n", line, got->eM11, expect->eM11);
 629     ok(fabs(got->eM12 - expect->eM12) < 0.001, "%d: got %f expect %f\n", line, got->eM12, expect->eM12);
 630     ok(fabs(got->eM21 - expect->eM21) < 0.001, "%d: got %f expect %f\n", line, got->eM21, expect->eM21);
 631     ok(fabs(got->eM22 - expect->eM22) < 0.001, "%d: got %f expect %f\n", line, got->eM22, expect->eM22);
 632     ok(fabs(got->eDx - expect->eDx) < 0.001, "%d: got %f expect %f\n", line, got->eDx, expect->eDx);
 633     ok(fabs(got->eDy - expect->eDy) < 0.001, "%d: got %f expect %f\n", line, got->eDy, expect->eDy);
 634 }
 635
 636
 637 static void test_gettransform(void)
 638 {
 639     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 640     XFORM xform, expect;
 641     BOOL r;
 642     SIZE lometric_vp, lometric_wnd;
 643
 644     if(!pGetTransform)
 645     {
 646         win_skip("Don't have GetTransform\n");
 647         return;
 648     }
 649
 650     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 651     ok(r == TRUE, "got %d\n", r);
 652     expect_identity(__LINE__, &xform);
 653     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 654     ok(r == TRUE, "got %d\n", r);
 655     expect_identity(__LINE__, &xform);
 656     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 657     ok(r == TRUE, "got %d\n", r);
 658     expect_identity(__LINE__, &xform);
 659     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 660     ok(r == TRUE, "got %d\n", r);
 661     expect_identity(__LINE__, &xform);
 662
 663     SetMapMode(hdc, MM_LOMETRIC);
 664     GetViewportExtEx(hdc, &lometric_vp);
 665     GetWindowExtEx(hdc, &lometric_wnd);
 666
 667     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 668     ok(r == TRUE, "got %d\n", r);
 669     expect_identity(__LINE__, &xform);
 670
 671     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 672     ok(r == TRUE, "got %d\n", r);
 673     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 674     expect.eM12 = expect.eM21 = 0.0;
 675     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 676     expect.eDx = expect.eDy = 0.0;
 677     xform_near_match(__LINE__, &xform, &expect);
 678
 679     r = pGetTransform(hdc, 0x204, &xform);  /* World -> Device */
 680     ok(r == TRUE, "got %d\n", r);
 681     xform_near_match(__LINE__, &xform, &expect);
 682
 683     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 684     ok(r == TRUE, "got %d\n", r);
 685     expect.eM11 = (FLOAT) lometric_wnd.cx / lometric_vp.cx;
 686     expect.eM22 = (FLOAT) lometric_wnd.cy / lometric_vp.cy;
 687     xform_near_match(__LINE__, &xform, &expect);
 688
 689
 690     SetGraphicsMode(hdc, GM_ADVANCED);
 691
 692     expect.eM11 = 10.0;
 693     expect.eM22 = 20.0;
 694     SetWorldTransform(hdc, &expect);
 695     r = pGetTransform(hdc, 0x203, &xform);  /* World -> Page */
 696     ok(r == TRUE, "got %d\n", r);
 697     xform_near_match(__LINE__, &xform, &expect);
 698
 699     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 700     ok(r == TRUE, "got %d\n", r);
 701     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 702     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 703     xform_near_match(__LINE__, &xform, &expect);
 704
 705     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 706     ok(r == TRUE, "got %d\n", r);
 707     expect.eM11 *= 10.0;
 708     expect.eM22 *= 20.0;
 709     xform_near_match(__LINE__, &xform, &expect);
 710
 711     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 712     ok(r == TRUE, "got %d\n", r);
 713     expect.eM11 = 1 / expect.eM11;
 714     expect.eM22 = 1 / expect.eM22;
 715     xform_near_match(__LINE__, &xform, &expect);
 716
 717     r = pGetTransform(hdc, 0x102, &xform);
 718     ok(r == FALSE, "got %d\n", r);
 719     r = pGetTransform(hdc, 0x103, &xform);
 720     ok(r == FALSE, "got %d\n", r);
 721     r = pGetTransform(hdc, 0x104, &xform);
 722     ok(r == FALSE, "got %d\n", r);
 723     r = pGetTransform(hdc, 0x202, &xform);
 724     ok(r == FALSE, "got %d\n", r);
 725     r = pGetTransform(hdc, 0x302, &xform);
 726     ok(r == FALSE, "got %d\n", r);
 727     r = pGetTransform(hdc, 0x303, &xform);
 728     ok(r == FALSE, "got %d\n", r);
 729     r = pGetTransform(hdc, 0x403, &xform);
 730     ok(r == FALSE, "got %d\n", r);
 731     r = pGetTransform(hdc, 0x404, &xform);
 732     ok(r == FALSE, "got %d\n", r);
 733     r = pGetTransform(hdc, 0xffff, &xform);
 734     ok(r == FALSE, "got %d\n", r);
 735 }
 736
 737 START_TEST(mapping)
 738 {
 739     HMODULE mod = GetModuleHandleA("gdi32.dll");
 740     pGetLayout = (void *)GetProcAddress( mod, "GetLayout" );
 741     pGetRandomRgn = (void *)GetProcAddress( mod, "GetRandomRgn" );
 742     pGetTransform = (void *)GetProcAddress( mod, "GetTransform" );
 743     pSetVirtualResolution = (void *)GetProcAddress( mod, "SetVirtualResolution" );
 744
 745     test_modify_world_transform();
 746     test_world_transform();
 747     test_dc_layout();
 748     test_isotropic_mapping();
 749     test_setvirtualresolution();
 750     test_gettransform();
 751 }