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 <assert.h>
  23 #include <stdio.h>
  24 #include <math.h>
  25
  26 #include "wine/test.h"
  27 #include "winbase.h"
  28 #include "wingdi.h"
  29 #include "winuser.h"
  30 #include "winerror.h"
  31
  32 static DWORD (WINAPI *pSetLayout)(HDC hdc, DWORD layout);
  33 static DWORD (WINAPI *pGetLayout)(HDC hdc);
  34 static INT (WINAPI *pGetRandomRgn)(HDC hDC, HRGN hRgn, INT iCode);
  35 static BOOL (WINAPI *pGetTransform)(HDC, DWORD, XFORM *);
  36 static DWORD (WINAPI *pSetVirtualResolution)(HDC, DWORD, DWORD, DWORD, DWORD);
  37
  38 #define rough_match(got, expected) (abs( MulDiv( (got) - (expected), 1000, (expected) )) <= 5)
  39
  40 #define expect_LPtoDP(_hdc, _x, _y) \
  41 { \
  42     POINT _pt = { 1000, 1000 }; \
  43     LPtoDP(_hdc, &_pt, 1); \
  44     ok(rough_match(_pt.x, _x), "expected x %d, got %d\n", (_x), _pt.x); \
  45     ok(rough_match(_pt.y, _y), "expected y %d, got %d\n", (_y), _pt.y); \
  46 }
  47
  48 #define expect_world_transform(_hdc, _em11, _em22) \
  49 { \
  50     BOOL _ret; \
  51     XFORM _xform; \
  52     SetLastError(0xdeadbeef); \
  53     _ret = GetWorldTransform(_hdc, &_xform); \
  54     if (GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) \
  55     { \
  56         ok(_ret, "GetWorldTransform error %u\n", GetLastError()); \
  57         ok(_xform.eM11 == (_em11), "expected %f, got %f\n", (_em11), _xform.eM11); \
  58         ok(_xform.eM12 == 0.0, "expected 0.0, got %f\n", _xform.eM12); \
  59         ok(_xform.eM21 == 0.0, "expected 0.0, got %f\n", _xform.eM21); \
  60         ok(_xform.eM22 == (_em22), "expected %f, got %f\n", (_em22), _xform.eM22); \
  61         ok(_xform.eDx == 0.0, "expected 0.0, got %f\n", _xform.eDx); \
  62         ok(_xform.eDy == 0.0, "expected 0.0, got %f\n", _xform.eDy); \
  63     } \
  64 }
  65
  66 #define expect_dc_ext(_func, _hdc, _cx, _cy) \
  67 { \
  68     BOOL _ret; \
  69     SIZE _size; \
  70     SetLastError(0xdeadbeef); \
  71     _ret = _func(_hdc, &_size); \
  72     ok(_ret, #_func " error %u\n", GetLastError()); \
  73     ok(_size.cx == (_cx), "expected cx %d, got %d\n", (_cx), _size.cx); \
  74     ok(_size.cy == (_cy), "expected cy %d, got %d\n", (_cy), _size.cy); \
  75 }
  76
  77 #define expect_viewport_ext(_hdc, _cx, _cy) expect_dc_ext(GetViewportExtEx, _hdc, _cx, _cy)
  78 #define expect_window_ext(_hdc, _cx, _cy)  expect_dc_ext(GetWindowExtEx, _hdc, _cx, _cy)
  79
  80 static void test_world_transform(void)
  81 {
  82     BOOL is_win9x;
  83     HDC hdc;
  84     INT ret, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
  85     XFORM xform;
  86     SIZE size;
  87
  88     SetLastError(0xdeadbeef);
  89     GetWorldTransform(0, NULL);
  90     is_win9x = GetLastError() == ERROR_CALL_NOT_IMPLEMENTED;
  91
  92     hdc = CreateCompatibleDC(0);
  93
  94     xform.eM11 = 1.0f;
  95     xform.eM12 = 0.0f;
  96     xform.eM21 = 0.0f;
  97     xform.eM22 = 1.0f;
  98     xform.eDx = 0.0f;
  99     xform.eDy = 0.0f;
 100     ret = SetWorldTransform(hdc, &xform);
 101     ok(!ret, "SetWorldTransform should fail in GM_COMPATIBLE mode\n");
 102
 103     size_cx = GetDeviceCaps(hdc, HORZSIZE);
 104     size_cy = GetDeviceCaps(hdc, VERTSIZE);
 105     res_x = GetDeviceCaps(hdc, HORZRES);
 106     res_y = GetDeviceCaps(hdc, VERTRES);
 107     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
 108     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
 109     trace("dc size %d x %d, resolution %d x %d dpi %d x %d\n",
 110           size_cx, size_cy, res_x, res_y, dpi_x, dpi_y );
 111
 112     expect_viewport_ext(hdc, 1, 1);
 113     expect_window_ext(hdc, 1, 1);
 114     expect_world_transform(hdc, 1.0, 1.0);
 115     expect_LPtoDP(hdc, 1000, 1000);
 116
 117     SetLastError(0xdeadbeef);
 118     ret = SetMapMode(hdc, MM_LOMETRIC);
 119     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 120
 121     if (is_win9x)
 122     {
 123         expect_viewport_ext(hdc, dpi_x, dpi_y);
 124         expect_window_ext(hdc, 254, -254);
 125     }
 126     else
 127     {
 128         expect_viewport_ext(hdc, res_x, -res_y);
 129         ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 130         ok( rough_match( size.cx, size_cx * 10 ) ||
 131             rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 132             "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 133         ok( rough_match( size.cy, size_cy * 10 ) ||
 134             rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 135             "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 136     }
 137     expect_world_transform(hdc, 1.0, 1.0);
 138     expect_LPtoDP(hdc, MulDiv(1000 / 10, res_x, size_cx), -MulDiv(1000 / 10, res_y, size_cy));
 139
 140     SetLastError(0xdeadbeef);
 141     ret = SetMapMode(hdc, MM_TEXT);
 142     ok(ret == MM_LOMETRIC, "expected MM_LOMETRIC, got %d\n", ret);
 143
 144     expect_viewport_ext(hdc, 1, 1);
 145     expect_window_ext(hdc, 1, 1);
 146     expect_world_transform(hdc, 1.0, 1.0);
 147     expect_LPtoDP(hdc, 1000, 1000);
 148
 149     ret = SetGraphicsMode(hdc, GM_ADVANCED);
 150     if (!ret)
 151     {
 152         DeleteDC(hdc);
 153         skip("GM_ADVANCED is not supported on this platform\n");
 154         return;
 155     }
 156
 157     expect_viewport_ext(hdc, 1, 1);
 158     expect_window_ext(hdc, 1, 1);
 159     expect_world_transform(hdc, 1.0, 1.0);
 160     expect_LPtoDP(hdc, 1000, 1000);
 161
 162     /* The transform must conform to (eM11 * eM22 != eM12 * eM21) requirement */
 163     xform.eM11 = 1.0f;
 164     xform.eM12 = 2.0f;
 165     xform.eM21 = 1.0f;
 166     xform.eM22 = 2.0f;
 167     xform.eDx = 0.0f;
 168     xform.eDy = 0.0f;
 169     ret = SetWorldTransform(hdc, &xform);
 170     ok(!ret ||
 171        broken(ret), /* NT4 */
 172        "SetWorldTransform should fail with an invalid xform\n");
 173
 174     xform.eM11 = 20.0f;
 175     xform.eM12 = 0.0f;
 176     xform.eM21 = 0.0f;
 177     xform.eM22 = 20.0f;
 178     xform.eDx = 0.0f;
 179     xform.eDy = 0.0f;
 180     SetLastError(0xdeadbeef);
 181     ret = SetWorldTransform(hdc, &xform);
 182     ok(ret, "SetWorldTransform error %u\n", GetLastError());
 183
 184     expect_viewport_ext(hdc, 1, 1);
 185     expect_window_ext(hdc, 1, 1);
 186     expect_world_transform(hdc, 20.0, 20.0);
 187     expect_LPtoDP(hdc, 20000, 20000);
 188
 189     SetLastError(0xdeadbeef);
 190     ret = SetMapMode(hdc, MM_LOMETRIC);
 191     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 192
 193     expect_viewport_ext(hdc, res_x, -res_y);
 194     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 195     ok( rough_match( size.cx, size_cx * 10 ) ||
 196         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 197         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 198     ok( rough_match( size.cy, size_cy * 10 ) ||
 199         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 200         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 201     expect_world_transform(hdc, 20.0, 20.0);
 202     expect_LPtoDP(hdc, MulDiv(20000, res_x, size.cx), -MulDiv(20000, res_y, size.cy));
 203
 204     SetLastError(0xdeadbeef);
 205     ret = SetMapMode(hdc, MM_TEXT);
 206     ok(ret == MM_LOMETRIC, "expected MM_LOMETRIC, got %d\n", ret);
 207
 208     expect_viewport_ext(hdc, 1, 1);
 209     expect_window_ext(hdc, 1, 1);
 210     expect_world_transform(hdc, 20.0, 20.0);
 211     expect_LPtoDP(hdc, 20000, 20000);
 212
 213     ret = SetGraphicsMode(hdc, GM_COMPATIBLE);
 214     ok(ret, "SetGraphicsMode(GM_COMPATIBLE) should not fail if DC has't an identity transform\n");
 215     ret = GetGraphicsMode(hdc);
 216     ok(ret == GM_COMPATIBLE, "expected GM_COMPATIBLE, got %d\n", ret);
 217
 218     expect_viewport_ext(hdc, 1, 1);
 219     expect_window_ext(hdc, 1, 1);
 220     expect_world_transform(hdc, 20.0, 20.0);
 221     expect_LPtoDP(hdc, 20000, 20000);
 222
 223     DeleteDC(hdc);
 224 }
 225
 226 static void test_dc_layout(void)
 227 {
 228     INT ret, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
 229     SIZE size;
 230     POINT pt;
 231     HBITMAP bitmap;
 232     RECT rc, ret_rc;
 233     HDC hdc;
 234     HRGN hrgn;
 235
 236     if (!pGetLayout || !pSetLayout)
 237     {
 238         win_skip( "Don't have SetLayout\n" );
 239         return;
 240     }
 241
 242     hdc = CreateCompatibleDC(0);
 243     bitmap = CreateCompatibleBitmap( hdc, 100, 100 );
 244     SelectObject( hdc, bitmap );
 245
 246     size_cx = GetDeviceCaps(hdc, HORZSIZE);
 247     size_cy = GetDeviceCaps(hdc, VERTSIZE);
 248     res_x = GetDeviceCaps(hdc, HORZRES);
 249     res_y = GetDeviceCaps(hdc, VERTRES);
 250     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
 251     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
 252
 253     ret = GetMapMode( hdc );
 254     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 255     expect_viewport_ext(hdc, 1, 1);
 256     expect_window_ext(hdc, 1, 1);
 257     expect_world_transform(hdc, 1.0, 1.0);
 258     expect_LPtoDP(hdc, 1000, 1000);
 259
 260     pSetLayout( hdc, LAYOUT_RTL );
 261     if (!pGetLayout( hdc ))
 262     {
 263         win_skip( "SetLayout not supported\n" );
 264         DeleteDC(hdc);
 265         return;
 266     }
 267
 268     ret = GetMapMode( hdc );
 269     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 270     expect_viewport_ext(hdc, 1, 1);
 271     expect_window_ext(hdc, 1, 1);
 272     expect_world_transform(hdc, 1.0, 1.0);
 273     expect_LPtoDP(hdc, -1000 + 99, 1000);
 274     GetViewportOrgEx( hdc, &pt );
 275     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 276     GetWindowOrgEx( hdc, &pt );
 277     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 278     GetDCOrgEx( hdc, &pt );
 279     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 280     if (pGetTransform)
 281     {
 282         XFORM xform;
 283         BOOL ret = pGetTransform( hdc, 0x204, &xform ); /* World -> Device */
 284         ok( ret, "got %d\n", ret );
 285         ok( xform.eM11 == -1.0, "got %f\n", xform.eM11 );
 286         ok( xform.eM12 == 0.0, "got %f\n", xform.eM12 );
 287         ok( xform.eM21 == 0.0, "got %f\n", xform.eM21 );
 288         ok( xform.eM22 == 1.0, "got %f\n", xform.eM22 );
 289         ok( xform.eDx == 99.0, "got %f\n", xform.eDx );
 290         ok( xform.eDy == 0.0, "got %f\n", xform.eDy );
 291     }
 292
 293     SetRect( &rc, 10, 10, 20, 20 );
 294     IntersectClipRect( hdc, 10, 10, 20, 20 );
 295     hrgn = CreateRectRgn( 0, 0, 0, 0 );
 296     GetClipRgn( hdc, hrgn );
 297     GetRgnBox( hrgn, &ret_rc );
 298     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 299         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 300     pSetLayout( hdc, LAYOUT_LTR );
 301     SetRect( &rc, 80, 10, 90, 20 );
 302     GetClipRgn( hdc, hrgn );
 303     GetRgnBox( hrgn, &ret_rc );
 304     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 305         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 306     GetClipBox( hdc, &ret_rc );
 307     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 308         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 309     IntersectClipRect( hdc, 80, 10, 85, 20 );
 310     pSetLayout( hdc, LAYOUT_RTL );
 311     SetRect( &rc, 15, 10, 20, 20 );
 312     GetClipRgn( hdc, hrgn );
 313     GetRgnBox( hrgn, &ret_rc );
 314     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 315         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 316     SetRectRgn( hrgn, 60, 10, 80, 20 );
 317     pSetLayout( hdc, LAYOUT_LTR );
 318     ExtSelectClipRgn( hdc, hrgn, RGN_OR );
 319     pSetLayout( hdc, LAYOUT_RTL );
 320     SetRect( &rc, 15, 10, 40, 20 );
 321     GetClipRgn( hdc, hrgn );
 322     GetRgnBox( hrgn, &ret_rc );
 323     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 324         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 325
 326     /* OffsetClipRgn mirrors too */
 327     OffsetClipRgn( hdc, 5, 5 );
 328     OffsetRect( &rc, 5, 5 );
 329     GetClipRgn( hdc, hrgn );
 330     GetRgnBox( hrgn, &ret_rc );
 331     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 332         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 333
 334     /* GetRandomRgn returns the raw region */
 335     if (pGetRandomRgn)
 336     {
 337         SetRect( &rc, 55, 15, 80, 25 );
 338         pGetRandomRgn( hdc, hrgn, 1 );
 339         GetRgnBox( hrgn, &ret_rc );
 340         ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 341             ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 342     }
 343
 344     SetMapMode(hdc, MM_LOMETRIC);
 345     ret = GetMapMode( hdc );
 346     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 347
 348     expect_viewport_ext(hdc, res_x, -res_y);
 349     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 350     ok( rough_match( size.cx, size_cx * 10 ) ||
 351         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 352         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 353     ok( rough_match( size.cy, size_cy * 10 ) ||
 354         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 355         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 356     expect_world_transform(hdc, 1.0, 1.0);
 357     expect_LPtoDP(hdc, -MulDiv(1000 / 10, res_x, size_cx) + 99, -MulDiv(1000 / 10, res_y, size_cy));
 358
 359     SetMapMode(hdc, MM_TEXT);
 360     ret = GetMapMode( hdc );
 361     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 362     pSetLayout( hdc, LAYOUT_LTR );
 363     ret = GetMapMode( hdc );
 364     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 365     SetMapMode(hdc, MM_TEXT);
 366     ret = GetMapMode( hdc );
 367     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 368
 369     DeleteDC(hdc);
 370     DeleteObject( bitmap );
 371 }
 372
 373 static void test_modify_world_transform(void)
 374 {
 375     HDC hdc = GetDC(0);
 376     int ret;
 377
 378     ret = SetGraphicsMode(hdc, GM_ADVANCED);
 379     if(!ret) /* running in win9x so quit */
 380     {
 381         ReleaseDC(0, hdc);
 382         skip("GM_ADVANCED is not supported on this platform\n");
 383         return;
 384     }
 385
 386     ret = ModifyWorldTransform(hdc, NULL, MWT_IDENTITY);
 387     ok(ret, "ret = %d\n", ret);
 388
 389     ret = ModifyWorldTransform(hdc, NULL, MWT_LEFTMULTIPLY);
 390     ok(!ret, "ret = %d\n", ret);
 391
 392     ret = ModifyWorldTransform(hdc, NULL, MWT_RIGHTMULTIPLY);
 393     ok(!ret, "ret = %d\n", ret);
 394
 395     ReleaseDC(0, hdc);
 396 }
 397
 398 static void test_SetWindowExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 399 {
 400     SIZE windowExt, viewportExt;
 401     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 402
 403     GetWindowOrgEx(hdc, &windowOrg);
 404     GetViewportOrgEx(hdc, &viewportOrg);
 405
 406     SetWindowExtEx(hdc, cx, cy, NULL);
 407     GetWindowExtEx(hdc, &windowExt);
 408     ok(windowExt.cx == cx && windowExt.cy == cy,
 409        "Window extension: Expected %dx%d, got %dx%d\n",
 410        cx, cy, windowExt.cx, windowExt.cy);
 411
 412     GetViewportExtEx(hdc, &viewportExt);
 413     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 414         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 415         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 416
 417     GetWindowOrgEx(hdc, &windowOrgAfter);
 418     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 419         "Window origin changed from (%d,%d) to (%d,%d)\n",
 420         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 421
 422     GetViewportOrgEx(hdc, &viewportOrgAfter);
 423     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 424         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
 425         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 426 }
 427
 428 static void test_SetViewportExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 429 {
 430     SIZE windowExt, windowExtAfter, viewportExt;
 431     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 432
 433     GetWindowOrgEx(hdc, &windowOrg);
 434     GetViewportOrgEx(hdc, &viewportOrg);
 435     GetWindowExtEx(hdc, &windowExt);
 436
 437     SetViewportExtEx(hdc, cx, cy, NULL);
 438     GetViewportExtEx(hdc, &viewportExt);
 439     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 440         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 441         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 442
 443     GetWindowExtEx(hdc, &windowExtAfter);
 444     ok(windowExt.cx == windowExtAfter.cx && windowExt.cy == windowExtAfter.cy,
 445        "Window extension changed from %dx%d to %dx%d\n",
 446        windowExt.cx, windowExt.cy, windowExtAfter.cx, windowExtAfter.cy);
 447
 448     GetWindowOrgEx(hdc, &windowOrgAfter);
 449     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 450         "Window origin changed from (%d,%d) to (%d,%d)\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 (%d,%d) to (%d,%d)\n",
 456         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 457 }
 458
 459 static void test_isotropic_mapping(void)
 460 {
 461     SIZE win, vp;
 462     HDC hdc = GetDC(0);
 463
 464     SetMapMode(hdc, MM_ISOTROPIC);
 465
 466     /* MM_ISOTROPIC is set up like MM_LOMETRIC.
 467        Initial values after SetMapMode():
 468        (1 inch = 25.4 mm)
 469
 470                        Windows 9x:               Windows NT:
 471        Window Ext:     254 x -254                HORZSIZE*10 x VERTSIZE*10
 472        Viewport Ext:   LOGPIXELSX x LOGPIXELSY   HORZRES x -VERTRES
 473
 474        To test without rounding errors, we have to use multiples of
 475        these values!
 476      */
 477
 478     GetWindowExtEx(hdc, &win);
 479     GetViewportExtEx(hdc, &vp);
 480
 481     test_SetViewportExt(hdc, 10 * vp.cx, 10 * vp.cy, 10 * vp.cx, 10 * vp.cy);
 482     test_SetWindowExt(hdc, win.cx, win.cy, 10 * vp.cx, 10 * vp.cy);
 483     test_SetWindowExt(hdc, 2 * win.cx, win.cy, 10 * vp.cx, 5 * vp.cy);
 484     test_SetWindowExt(hdc, win.cx, win.cy, 5 * vp.cx, 5 * vp.cy);
 485     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 486     test_SetViewportExt(hdc, vp.cx, 2 * vp.cy, vp.cx, vp.cy);
 487     test_SetViewportExt(hdc, 2 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 488     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 489     test_SetWindowExt(hdc, 4 * win.cx, 2 * win.cy, 2 * vp.cx, vp.cy);
 490     test_SetViewportExt(hdc, -2 * vp.cx, -4 * vp.cy, -2 * vp.cx, -vp.cy);
 491     test_SetViewportExt(hdc, -2 * vp.cx, -1 * vp.cy, -2 * vp.cx, -vp.cy);
 492     test_SetWindowExt(hdc, -4 * win.cx, -2 * win.cy, -2 * vp.cx, -vp.cy);
 493     test_SetWindowExt(hdc, 4 * win.cx, -4 * win.cy, -vp.cx, -vp.cy);
 494
 495     ReleaseDC(0, hdc);
 496 }
 497
 498 static void test_setvirtualresolution(void)
 499 {
 500     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 501     DWORD r;
 502     INT horz_res = GetDeviceCaps(hdc, HORZRES);
 503     INT horz_size = GetDeviceCaps(hdc, HORZSIZE);
 504     INT log_pixels_x = GetDeviceCaps(hdc, LOGPIXELSX);
 505     SIZE orig_lometric_vp, orig_lometric_wnd;
 506
 507     if(!pSetVirtualResolution)
 508     {
 509         win_skip("Don't have SetVirtualResolution\n");
 510         return;
 511     }
 512
 513     /* Get the true resolution limits */
 514     SetMapMode(hdc, MM_LOMETRIC);
 515     GetViewportExtEx(hdc, &orig_lometric_vp);
 516     GetWindowExtEx(hdc, &orig_lometric_wnd);
 517     SetMapMode(hdc, MM_TEXT);
 518
 519     r = pSetVirtualResolution(hdc, 4000, 1000, 400, 200); /* 10 pix/mm x 5 pix/mm */
 520     ok(r == TRUE, "got %d\n", r);
 521     expect_LPtoDP(hdc, 1000, 1000);
 522     expect_viewport_ext(hdc, 1, 1);
 523     expect_window_ext(hdc, 1, 1);
 524
 525     SetMapMode(hdc, MM_LOMETRIC);
 526     expect_LPtoDP(hdc, 1000, -500);
 527     expect_viewport_ext(hdc, 4000, -1000);
 528     expect_window_ext(hdc, 4000, 2000);
 529
 530     /* Doesn't change the device caps */
 531     ok(horz_res == GetDeviceCaps(hdc, HORZRES), "horz_res changed\n");
 532     ok(horz_size == GetDeviceCaps(hdc, HORZSIZE), "horz_size changed\n");
 533     ok(log_pixels_x == GetDeviceCaps(hdc, LOGPIXELSX), "log_pixels_x changed\n");
 534
 535     r = pSetVirtualResolution(hdc, 8000, 1000, 400, 200); /* 20 pix/mm x 5 pix/mm */
 536     ok(r == TRUE, "got %d\n", r);
 537     expect_LPtoDP(hdc, 1000, -500); /* No change, need to re-set the mapping mode */
 538     SetMapMode(hdc, MM_TEXT);
 539     SetMapMode(hdc, MM_LOMETRIC);
 540     expect_LPtoDP(hdc, 2000, -500);
 541     expect_viewport_ext(hdc, 8000, -1000);
 542     expect_window_ext(hdc, 4000, 2000);
 543
 544     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 545     ok(r == TRUE, "got %d\n", r);
 546     SetMapMode(hdc, MM_TEXT);
 547     SetMapMode(hdc, MM_LOMETRIC);
 548     expect_LPtoDP(hdc, 4000, -500);
 549     expect_viewport_ext(hdc, 8000, -1000);
 550     expect_window_ext(hdc, 2000, 2000);
 551
 552     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 553     ok(r == TRUE, "got %d\n", r);
 554     SetMapMode(hdc, MM_TEXT);
 555     SetMapMode(hdc, MM_LOMETRIC);
 556     expect_LPtoDP(hdc, 4000, -500);
 557     expect_viewport_ext(hdc, 8000, -1000);
 558     expect_window_ext(hdc, 2000, 2000);
 559
 560     r = pSetVirtualResolution(hdc, 8000, 2000, 200, 200); /* 40 pix/mm x 10 pix/mm */
 561     ok(r == TRUE, "got %d\n", r);
 562     SetMapMode(hdc, MM_TEXT);
 563     SetMapMode(hdc, MM_LOMETRIC);
 564     expect_LPtoDP(hdc, 4000, -1000);
 565     expect_viewport_ext(hdc, 8000, -2000);
 566     expect_window_ext(hdc, 2000, 2000);
 567
 568     r = pSetVirtualResolution(hdc, 0, 0, 10, 0); /* Error */
 569     ok(r == FALSE, "got %d\n", r);
 570     SetMapMode(hdc, MM_TEXT);
 571     SetMapMode(hdc, MM_LOMETRIC);
 572     expect_LPtoDP(hdc, 4000, -1000);
 573     expect_viewport_ext(hdc, 8000, -2000);
 574     expect_window_ext(hdc, 2000, 2000);
 575
 576     r = pSetVirtualResolution(hdc, 0, 0, 0, 0); /* Reset to true resolution */
 577     ok(r == TRUE, "got %d\n", r);
 578     SetMapMode(hdc, MM_TEXT);
 579     SetMapMode(hdc, MM_LOMETRIC);
 580     expect_viewport_ext(hdc, orig_lometric_vp.cx, orig_lometric_vp.cy);
 581     expect_window_ext(hdc, orig_lometric_wnd.cx, orig_lometric_wnd.cy);
 582
 583     DeleteDC(hdc);
 584 }
 585
 586
 587 static inline void expect_identity(int line, XFORM *xf)
 588 {
 589     ok(xf->eM11 == 1.0, "%d: got %f\n", line, xf->eM11);
 590     ok(xf->eM12 == 0.0, "%d: got %f\n", line, xf->eM12);
 591     ok(xf->eM21 == 0.0, "%d: got %f\n", line, xf->eM21);
 592     ok(xf->eM22 == 1.0, "%d: got %f\n", line, xf->eM22);
 593     ok(xf->eDx == 0.0, "%d: got %f\n", line, xf->eDx);
 594     ok(xf->eDy == 0.0, "%d: got %f\n", line, xf->eDy);
 595 }
 596
 597 static inline void xform_near_match(int line, XFORM *got, XFORM *expect)
 598 {
 599     ok(fabs(got->eM11 - expect->eM11) < 0.001, "%d: got %f expect %f\n", line, got->eM11, expect->eM11);
 600     ok(fabs(got->eM12 - expect->eM12) < 0.001, "%d: got %f expect %f\n", line, got->eM12, expect->eM12);
 601     ok(fabs(got->eM21 - expect->eM21) < 0.001, "%d: got %f expect %f\n", line, got->eM21, expect->eM21);
 602     ok(fabs(got->eM22 - expect->eM22) < 0.001, "%d: got %f expect %f\n", line, got->eM22, expect->eM22);
 603     ok(fabs(got->eDx - expect->eDx) < 0.001, "%d: got %f expect %f\n", line, got->eDx, expect->eDx);
 604     ok(fabs(got->eDy - expect->eDy) < 0.001, "%d: got %f expect %f\n", line, got->eDy, expect->eDy);
 605 }
 606
 607
 608 static void test_gettransform(void)
 609 {
 610     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 611     XFORM xform, expect;
 612     BOOL r;
 613     SIZE lometric_vp, lometric_wnd;
 614
 615     if(!pGetTransform)
 616     {
 617         win_skip("Don't have GetTransform\n");
 618         return;
 619     }
 620
 621     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 622     ok(r == TRUE, "got %d\n", r);
 623     expect_identity(__LINE__, &xform);
 624     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 625     ok(r == TRUE, "got %d\n", r);
 626     expect_identity(__LINE__, &xform);
 627     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 628     ok(r == TRUE, "got %d\n", r);
 629     expect_identity(__LINE__, &xform);
 630     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 631     ok(r == TRUE, "got %d\n", r);
 632     expect_identity(__LINE__, &xform);
 633
 634     SetMapMode(hdc, MM_LOMETRIC);
 635     GetViewportExtEx(hdc, &lometric_vp);
 636     GetWindowExtEx(hdc, &lometric_wnd);
 637
 638     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 639     ok(r == TRUE, "got %d\n", r);
 640     expect_identity(__LINE__, &xform);
 641
 642     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 643     ok(r == TRUE, "got %d\n", r);
 644     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 645     expect.eM12 = expect.eM21 = 0.0;
 646     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 647     expect.eDx = expect.eDy = 0.0;
 648     xform_near_match(__LINE__, &xform, &expect);
 649
 650     r = pGetTransform(hdc, 0x204, &xform);  /* World -> Device */
 651     ok(r == TRUE, "got %d\n", r);
 652     xform_near_match(__LINE__, &xform, &expect);
 653
 654     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 655     ok(r == TRUE, "got %d\n", r);
 656     expect.eM11 = (FLOAT) lometric_wnd.cx / lometric_vp.cx;
 657     expect.eM22 = (FLOAT) lometric_wnd.cy / lometric_vp.cy;
 658     xform_near_match(__LINE__, &xform, &expect);
 659
 660
 661     SetGraphicsMode(hdc, GM_ADVANCED);
 662
 663     expect.eM11 = 10.0;
 664     expect.eM22 = 20.0;
 665     SetWorldTransform(hdc, &expect);
 666     r = pGetTransform(hdc, 0x203, &xform);  /* World -> Page */
 667     ok(r == TRUE, "got %d\n", r);
 668     xform_near_match(__LINE__, &xform, &expect);
 669
 670     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 671     ok(r == TRUE, "got %d\n", r);
 672     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 673     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 674     xform_near_match(__LINE__, &xform, &expect);
 675
 676     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 677     ok(r == TRUE, "got %d\n", r);
 678     expect.eM11 *= 10.0;
 679     expect.eM22 *= 20.0;
 680     xform_near_match(__LINE__, &xform, &expect);
 681
 682     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 683     ok(r == TRUE, "got %d\n", r);
 684     expect.eM11 = 1 / expect.eM11;
 685     expect.eM22 = 1 / expect.eM22;
 686     xform_near_match(__LINE__, &xform, &expect);
 687
 688     r = pGetTransform(hdc, 0x102, &xform);
 689     ok(r == FALSE, "got %d\n", r);
 690     r = pGetTransform(hdc, 0x103, &xform);
 691     ok(r == FALSE, "got %d\n", r);
 692     r = pGetTransform(hdc, 0x104, &xform);
 693     ok(r == FALSE, "got %d\n", r);
 694     r = pGetTransform(hdc, 0x202, &xform);
 695     ok(r == FALSE, "got %d\n", r);
 696     r = pGetTransform(hdc, 0x302, &xform);
 697     ok(r == FALSE, "got %d\n", r);
 698     r = pGetTransform(hdc, 0x303, &xform);
 699     ok(r == FALSE, "got %d\n", r);
 700     r = pGetTransform(hdc, 0x403, &xform);
 701     ok(r == FALSE, "got %d\n", r);
 702     r = pGetTransform(hdc, 0x404, &xform);
 703     ok(r == FALSE, "got %d\n", r);
 704     r = pGetTransform(hdc, 0xffff, &xform);
 705     ok(r == FALSE, "got %d\n", r);
 706 }
 707
 708 START_TEST(mapping)
 709 {
 710     HMODULE mod = GetModuleHandleA("gdi32.dll");
 711     pGetLayout = (void *)GetProcAddress( mod, "GetLayout" );
 712     pSetLayout = (void *)GetProcAddress( mod, "SetLayout" );
 713     pGetRandomRgn = (void *)GetProcAddress( mod, "GetRandomRgn" );
 714     pGetTransform = (void *)GetProcAddress( mod, "GetTransform" );
 715     pSetVirtualResolution = (void *)GetProcAddress( mod, "SetVirtualResolution" );
 716
 717     test_modify_world_transform();
 718     test_world_transform();
 719     test_dc_layout();
 720     test_isotropic_mapping();
 721     test_setvirtualresolution();
 722     test_gettransform();
 723 }