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     size.cx = 0xdeadbeef;
 214     size.cy = 0xdeadbeef;
 215     ret = SetViewportExtEx(hdc, -1, -1, &size);
 216     ok(ret, "SetViewportExtEx(-1, -1) failed\n");
 217     ok(size.cx == 1 && size.cy == 1, "expected 1,1 got %d,%d\n", size.cx, size.cy);
 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     ret = SetMapMode(hdc, MM_ANISOTROPIC);
 224     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 225
 226     expect_viewport_ext(hdc, 1, 1);
 227     expect_window_ext(hdc, 1, 1);
 228     expect_world_transform(hdc, 20.0, 20.0);
 229     expect_LPtoDP(hdc, 20000, 20000);
 230
 231     size.cx = 0xdeadbeef;
 232     size.cy = 0xdeadbeef;
 233     ret = SetViewportExtEx(hdc, -1, -1, &size);
 234     ok(ret, "SetViewportExtEx(-1, -1) failed\n");
 235     ok(size.cx == 1 && size.cy == 1, "expected 1,1 got %d,%d\n", size.cx, size.cy);
 236     expect_viewport_ext(hdc, -1, -1);
 237     expect_window_ext(hdc, 1, 1);
 238     expect_world_transform(hdc, 20.0, 20.0);
 239     expect_LPtoDP(hdc, -20000, -20000);
 240
 241     ret = SetGraphicsMode(hdc, GM_COMPATIBLE);
 242     ok(ret, "SetGraphicsMode(GM_COMPATIBLE) should not fail if DC has't an identity transform\n");
 243     ret = GetGraphicsMode(hdc);
 244     ok(ret == GM_COMPATIBLE, "expected GM_COMPATIBLE, got %d\n", ret);
 245
 246     expect_viewport_ext(hdc, -1, -1);
 247     expect_window_ext(hdc, 1, 1);
 248     expect_world_transform(hdc, 20.0, 20.0);
 249     expect_LPtoDP(hdc, -20000, -20000);
 250
 251     DeleteDC(hdc);
 252 }
 253
 254 static void test_dc_layout(void)
 255 {
 256     INT ret, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
 257     SIZE size;
 258     POINT pt;
 259     HBITMAP bitmap;
 260     RECT rc, ret_rc;
 261     HDC hdc;
 262     HRGN hrgn;
 263
 264     if (!pGetLayout || !pSetLayout)
 265     {
 266         win_skip( "Don't have SetLayout\n" );
 267         return;
 268     }
 269
 270     hdc = CreateCompatibleDC(0);
 271     bitmap = CreateCompatibleBitmap( hdc, 100, 100 );
 272     SelectObject( hdc, bitmap );
 273
 274     size_cx = GetDeviceCaps(hdc, HORZSIZE);
 275     size_cy = GetDeviceCaps(hdc, VERTSIZE);
 276     res_x = GetDeviceCaps(hdc, HORZRES);
 277     res_y = GetDeviceCaps(hdc, VERTRES);
 278     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
 279     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
 280
 281     ret = GetMapMode( hdc );
 282     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 283     expect_viewport_ext(hdc, 1, 1);
 284     expect_window_ext(hdc, 1, 1);
 285     expect_world_transform(hdc, 1.0, 1.0);
 286     expect_LPtoDP(hdc, 1000, 1000);
 287
 288     pSetLayout( hdc, LAYOUT_RTL );
 289     if (!pGetLayout( hdc ))
 290     {
 291         win_skip( "SetLayout not supported\n" );
 292         DeleteDC(hdc);
 293         return;
 294     }
 295
 296     ret = GetMapMode( hdc );
 297     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 298     expect_viewport_ext(hdc, 1, 1);
 299     expect_window_ext(hdc, 1, 1);
 300     expect_world_transform(hdc, 1.0, 1.0);
 301     expect_LPtoDP(hdc, -1000 + 99, 1000);
 302     GetViewportOrgEx( hdc, &pt );
 303     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 304     GetWindowOrgEx( hdc, &pt );
 305     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 306     GetDCOrgEx( hdc, &pt );
 307     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 308     if (pGetTransform)
 309     {
 310         XFORM xform;
 311         BOOL ret = pGetTransform( hdc, 0x204, &xform ); /* World -> Device */
 312         ok( ret, "got %d\n", ret );
 313         ok( xform.eM11 == -1.0, "got %f\n", xform.eM11 );
 314         ok( xform.eM12 == 0.0, "got %f\n", xform.eM12 );
 315         ok( xform.eM21 == 0.0, "got %f\n", xform.eM21 );
 316         ok( xform.eM22 == 1.0, "got %f\n", xform.eM22 );
 317         ok( xform.eDx == 99.0, "got %f\n", xform.eDx );
 318         ok( xform.eDy == 0.0, "got %f\n", xform.eDy );
 319     }
 320
 321     SetRect( &rc, 10, 10, 20, 20 );
 322     IntersectClipRect( hdc, 10, 10, 20, 20 );
 323     hrgn = CreateRectRgn( 0, 0, 0, 0 );
 324     GetClipRgn( hdc, hrgn );
 325     GetRgnBox( hrgn, &ret_rc );
 326     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 327         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 328     pSetLayout( hdc, LAYOUT_LTR );
 329     SetRect( &rc, 80, 10, 90, 20 );
 330     GetClipRgn( hdc, hrgn );
 331     GetRgnBox( hrgn, &ret_rc );
 332     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 333         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 334     GetClipBox( hdc, &ret_rc );
 335     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 336         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 337     IntersectClipRect( hdc, 80, 10, 85, 20 );
 338     pSetLayout( hdc, LAYOUT_RTL );
 339     SetRect( &rc, 15, 10, 20, 20 );
 340     GetClipRgn( hdc, hrgn );
 341     GetRgnBox( hrgn, &ret_rc );
 342     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 343         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 344     GetClipBox( hdc, &ret_rc );
 345     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 346         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 347     SetRectRgn( hrgn, 60, 10, 80, 20 );
 348     pSetLayout( hdc, LAYOUT_LTR );
 349     ExtSelectClipRgn( hdc, hrgn, RGN_OR );
 350     pSetLayout( hdc, LAYOUT_RTL );
 351     SetRect( &rc, 15, 10, 40, 20 );
 352     GetClipRgn( hdc, hrgn );
 353     GetRgnBox( hrgn, &ret_rc );
 354     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 355         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 356     GetClipBox( hdc, &ret_rc );
 357     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 358         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 359
 360     /* OffsetClipRgn mirrors too */
 361     OffsetClipRgn( hdc, 5, 5 );
 362     OffsetRect( &rc, 5, 5 );
 363     GetClipRgn( hdc, hrgn );
 364     GetRgnBox( hrgn, &ret_rc );
 365     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 366         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 367
 368     /* GetRandomRgn returns the raw region */
 369     if (pGetRandomRgn)
 370     {
 371         SetRect( &rc, 55, 15, 80, 25 );
 372         pGetRandomRgn( hdc, hrgn, 1 );
 373         GetRgnBox( hrgn, &ret_rc );
 374         ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 375             ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 376     }
 377
 378     SetMapMode(hdc, MM_LOMETRIC);
 379     ret = GetMapMode( hdc );
 380     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 381
 382     expect_viewport_ext(hdc, res_x, -res_y);
 383     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 384     ok( rough_match( size.cx, size_cx * 10 ) ||
 385         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 386         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 387     ok( rough_match( size.cy, size_cy * 10 ) ||
 388         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 389         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 390     expect_world_transform(hdc, 1.0, 1.0);
 391     expect_LPtoDP(hdc, -MulDiv(1000 / 10, res_x, size_cx) + 99, -MulDiv(1000 / 10, res_y, size_cy));
 392
 393     SetMapMode(hdc, MM_TEXT);
 394     ret = GetMapMode( hdc );
 395     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 396     pSetLayout( hdc, LAYOUT_LTR );
 397     ret = GetMapMode( hdc );
 398     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 399     SetMapMode(hdc, MM_TEXT);
 400     ret = GetMapMode( hdc );
 401     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 402
 403     DeleteDC(hdc);
 404     DeleteObject( bitmap );
 405 }
 406
 407 static void test_modify_world_transform(void)
 408 {
 409     HDC hdc = GetDC(0);
 410     int ret;
 411
 412     ret = SetGraphicsMode(hdc, GM_ADVANCED);
 413     if(!ret) /* running in win9x so quit */
 414     {
 415         ReleaseDC(0, hdc);
 416         skip("GM_ADVANCED is not supported on this platform\n");
 417         return;
 418     }
 419
 420     ret = ModifyWorldTransform(hdc, NULL, MWT_IDENTITY);
 421     ok(ret, "ret = %d\n", ret);
 422
 423     ret = ModifyWorldTransform(hdc, NULL, MWT_LEFTMULTIPLY);
 424     ok(!ret, "ret = %d\n", ret);
 425
 426     ret = ModifyWorldTransform(hdc, NULL, MWT_RIGHTMULTIPLY);
 427     ok(!ret, "ret = %d\n", ret);
 428
 429     ReleaseDC(0, hdc);
 430 }
 431
 432 static void test_SetWindowExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 433 {
 434     SIZE windowExt, viewportExt;
 435     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 436
 437     GetWindowOrgEx(hdc, &windowOrg);
 438     GetViewportOrgEx(hdc, &viewportOrg);
 439
 440     SetWindowExtEx(hdc, cx, cy, NULL);
 441     GetWindowExtEx(hdc, &windowExt);
 442     ok(windowExt.cx == cx && windowExt.cy == cy,
 443        "Window extension: Expected %dx%d, got %dx%d\n",
 444        cx, cy, windowExt.cx, windowExt.cy);
 445
 446     GetViewportExtEx(hdc, &viewportExt);
 447     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 448         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 449         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 450
 451     GetWindowOrgEx(hdc, &windowOrgAfter);
 452     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 453         "Window origin changed from (%d,%d) to (%d,%d)\n",
 454         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 455
 456     GetViewportOrgEx(hdc, &viewportOrgAfter);
 457     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 458         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
 459         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 460 }
 461
 462 static void test_SetViewportExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 463 {
 464     SIZE windowExt, windowExtAfter, viewportExt;
 465     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 466
 467     GetWindowOrgEx(hdc, &windowOrg);
 468     GetViewportOrgEx(hdc, &viewportOrg);
 469     GetWindowExtEx(hdc, &windowExt);
 470
 471     SetViewportExtEx(hdc, cx, cy, NULL);
 472     GetViewportExtEx(hdc, &viewportExt);
 473     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 474         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 475         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 476
 477     GetWindowExtEx(hdc, &windowExtAfter);
 478     ok(windowExt.cx == windowExtAfter.cx && windowExt.cy == windowExtAfter.cy,
 479        "Window extension changed from %dx%d to %dx%d\n",
 480        windowExt.cx, windowExt.cy, windowExtAfter.cx, windowExtAfter.cy);
 481
 482     GetWindowOrgEx(hdc, &windowOrgAfter);
 483     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 484         "Window origin changed from (%d,%d) to (%d,%d)\n",
 485         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 486
 487     GetViewportOrgEx(hdc, &viewportOrgAfter);
 488     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 489         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
 490         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 491 }
 492
 493 static void test_isotropic_mapping(void)
 494 {
 495     SIZE win, vp;
 496     HDC hdc = GetDC(0);
 497
 498     SetMapMode(hdc, MM_ISOTROPIC);
 499
 500     /* MM_ISOTROPIC is set up like MM_LOMETRIC.
 501        Initial values after SetMapMode():
 502        (1 inch = 25.4 mm)
 503
 504                        Windows 9x:               Windows NT:
 505        Window Ext:     254 x -254                HORZSIZE*10 x VERTSIZE*10
 506        Viewport Ext:   LOGPIXELSX x LOGPIXELSY   HORZRES x -VERTRES
 507
 508        To test without rounding errors, we have to use multiples of
 509        these values!
 510      */
 511
 512     GetWindowExtEx(hdc, &win);
 513     GetViewportExtEx(hdc, &vp);
 514
 515     test_SetViewportExt(hdc, 10 * vp.cx, 10 * vp.cy, 10 * vp.cx, 10 * vp.cy);
 516     test_SetWindowExt(hdc, win.cx, win.cy, 10 * vp.cx, 10 * vp.cy);
 517     test_SetWindowExt(hdc, 2 * win.cx, win.cy, 10 * vp.cx, 5 * vp.cy);
 518     test_SetWindowExt(hdc, win.cx, win.cy, 5 * vp.cx, 5 * vp.cy);
 519     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 520     test_SetViewportExt(hdc, vp.cx, 2 * vp.cy, vp.cx, vp.cy);
 521     test_SetViewportExt(hdc, 2 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 522     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 523     test_SetWindowExt(hdc, 4 * win.cx, 2 * win.cy, 2 * vp.cx, vp.cy);
 524     test_SetViewportExt(hdc, -2 * vp.cx, -4 * vp.cy, -2 * vp.cx, -vp.cy);
 525     test_SetViewportExt(hdc, -2 * vp.cx, -1 * vp.cy, -2 * vp.cx, -vp.cy);
 526     test_SetWindowExt(hdc, -4 * win.cx, -2 * win.cy, -2 * vp.cx, -vp.cy);
 527     test_SetWindowExt(hdc, 4 * win.cx, -4 * win.cy, -vp.cx, -vp.cy);
 528
 529     ReleaseDC(0, hdc);
 530 }
 531
 532 static void test_setvirtualresolution(void)
 533 {
 534     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 535     DWORD r;
 536     INT horz_res = GetDeviceCaps(hdc, HORZRES);
 537     INT horz_size = GetDeviceCaps(hdc, HORZSIZE);
 538     INT log_pixels_x = GetDeviceCaps(hdc, LOGPIXELSX);
 539     SIZE orig_lometric_vp, orig_lometric_wnd;
 540
 541     if(!pSetVirtualResolution)
 542     {
 543         win_skip("Don't have SetVirtualResolution\n");
 544         return;
 545     }
 546
 547     /* Get the true resolution limits */
 548     SetMapMode(hdc, MM_LOMETRIC);
 549     GetViewportExtEx(hdc, &orig_lometric_vp);
 550     GetWindowExtEx(hdc, &orig_lometric_wnd);
 551     SetMapMode(hdc, MM_TEXT);
 552
 553     r = pSetVirtualResolution(hdc, 4000, 1000, 400, 200); /* 10 pix/mm x 5 pix/mm */
 554     ok(r == TRUE, "got %d\n", r);
 555     expect_LPtoDP(hdc, 1000, 1000);
 556     expect_viewport_ext(hdc, 1, 1);
 557     expect_window_ext(hdc, 1, 1);
 558
 559     SetMapMode(hdc, MM_LOMETRIC);
 560     expect_LPtoDP(hdc, 1000, -500);
 561     expect_viewport_ext(hdc, 4000, -1000);
 562     expect_window_ext(hdc, 4000, 2000);
 563
 564     /* Doesn't change the device caps */
 565     ok(horz_res == GetDeviceCaps(hdc, HORZRES), "horz_res changed\n");
 566     ok(horz_size == GetDeviceCaps(hdc, HORZSIZE), "horz_size changed\n");
 567     ok(log_pixels_x == GetDeviceCaps(hdc, LOGPIXELSX), "log_pixels_x changed\n");
 568
 569     r = pSetVirtualResolution(hdc, 8000, 1000, 400, 200); /* 20 pix/mm x 5 pix/mm */
 570     ok(r == TRUE, "got %d\n", r);
 571     expect_LPtoDP(hdc, 1000, -500); /* No change, need to re-set the mapping mode */
 572     SetMapMode(hdc, MM_TEXT);
 573     SetMapMode(hdc, MM_LOMETRIC);
 574     expect_LPtoDP(hdc, 2000, -500);
 575     expect_viewport_ext(hdc, 8000, -1000);
 576     expect_window_ext(hdc, 4000, 2000);
 577
 578     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 579     ok(r == TRUE, "got %d\n", r);
 580     SetMapMode(hdc, MM_TEXT);
 581     SetMapMode(hdc, MM_LOMETRIC);
 582     expect_LPtoDP(hdc, 4000, -500);
 583     expect_viewport_ext(hdc, 8000, -1000);
 584     expect_window_ext(hdc, 2000, 2000);
 585
 586     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 587     ok(r == TRUE, "got %d\n", r);
 588     SetMapMode(hdc, MM_TEXT);
 589     SetMapMode(hdc, MM_LOMETRIC);
 590     expect_LPtoDP(hdc, 4000, -500);
 591     expect_viewport_ext(hdc, 8000, -1000);
 592     expect_window_ext(hdc, 2000, 2000);
 593
 594     r = pSetVirtualResolution(hdc, 8000, 2000, 200, 200); /* 40 pix/mm x 10 pix/mm */
 595     ok(r == TRUE, "got %d\n", r);
 596     SetMapMode(hdc, MM_TEXT);
 597     SetMapMode(hdc, MM_LOMETRIC);
 598     expect_LPtoDP(hdc, 4000, -1000);
 599     expect_viewport_ext(hdc, 8000, -2000);
 600     expect_window_ext(hdc, 2000, 2000);
 601
 602     r = pSetVirtualResolution(hdc, 0, 0, 10, 0); /* Error */
 603     ok(r == FALSE, "got %d\n", r);
 604     SetMapMode(hdc, MM_TEXT);
 605     SetMapMode(hdc, MM_LOMETRIC);
 606     expect_LPtoDP(hdc, 4000, -1000);
 607     expect_viewport_ext(hdc, 8000, -2000);
 608     expect_window_ext(hdc, 2000, 2000);
 609
 610     r = pSetVirtualResolution(hdc, 0, 0, 0, 0); /* Reset to true resolution */
 611     ok(r == TRUE, "got %d\n", r);
 612     SetMapMode(hdc, MM_TEXT);
 613     SetMapMode(hdc, MM_LOMETRIC);
 614     expect_viewport_ext(hdc, orig_lometric_vp.cx, orig_lometric_vp.cy);
 615     expect_window_ext(hdc, orig_lometric_wnd.cx, orig_lometric_wnd.cy);
 616
 617     DeleteDC(hdc);
 618 }
 619
 620
 621 static inline void expect_identity(int line, XFORM *xf)
 622 {
 623     ok(xf->eM11 == 1.0, "%d: got %f\n", line, xf->eM11);
 624     ok(xf->eM12 == 0.0, "%d: got %f\n", line, xf->eM12);
 625     ok(xf->eM21 == 0.0, "%d: got %f\n", line, xf->eM21);
 626     ok(xf->eM22 == 1.0, "%d: got %f\n", line, xf->eM22);
 627     ok(xf->eDx == 0.0, "%d: got %f\n", line, xf->eDx);
 628     ok(xf->eDy == 0.0, "%d: got %f\n", line, xf->eDy);
 629 }
 630
 631 static inline void xform_near_match(int line, XFORM *got, XFORM *expect)
 632 {
 633     ok(fabs(got->eM11 - expect->eM11) < 0.001, "%d: got %f expect %f\n", line, got->eM11, expect->eM11);
 634     ok(fabs(got->eM12 - expect->eM12) < 0.001, "%d: got %f expect %f\n", line, got->eM12, expect->eM12);
 635     ok(fabs(got->eM21 - expect->eM21) < 0.001, "%d: got %f expect %f\n", line, got->eM21, expect->eM21);
 636     ok(fabs(got->eM22 - expect->eM22) < 0.001, "%d: got %f expect %f\n", line, got->eM22, expect->eM22);
 637     ok(fabs(got->eDx - expect->eDx) < 0.001, "%d: got %f expect %f\n", line, got->eDx, expect->eDx);
 638     ok(fabs(got->eDy - expect->eDy) < 0.001, "%d: got %f expect %f\n", line, got->eDy, expect->eDy);
 639 }
 640
 641
 642 static void test_gettransform(void)
 643 {
 644     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 645     XFORM xform, expect;
 646     BOOL r;
 647     SIZE lometric_vp, lometric_wnd;
 648
 649     if(!pGetTransform)
 650     {
 651         win_skip("Don't have GetTransform\n");
 652         return;
 653     }
 654
 655     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 656     ok(r == TRUE, "got %d\n", r);
 657     expect_identity(__LINE__, &xform);
 658     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 659     ok(r == TRUE, "got %d\n", r);
 660     expect_identity(__LINE__, &xform);
 661     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 662     ok(r == TRUE, "got %d\n", r);
 663     expect_identity(__LINE__, &xform);
 664     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 665     ok(r == TRUE, "got %d\n", r);
 666     expect_identity(__LINE__, &xform);
 667
 668     SetMapMode(hdc, MM_LOMETRIC);
 669     GetViewportExtEx(hdc, &lometric_vp);
 670     GetWindowExtEx(hdc, &lometric_wnd);
 671
 672     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 673     ok(r == TRUE, "got %d\n", r);
 674     expect_identity(__LINE__, &xform);
 675
 676     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 677     ok(r == TRUE, "got %d\n", r);
 678     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 679     expect.eM12 = expect.eM21 = 0.0;
 680     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 681     expect.eDx = expect.eDy = 0.0;
 682     xform_near_match(__LINE__, &xform, &expect);
 683
 684     r = pGetTransform(hdc, 0x204, &xform);  /* World -> Device */
 685     ok(r == TRUE, "got %d\n", r);
 686     xform_near_match(__LINE__, &xform, &expect);
 687
 688     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 689     ok(r == TRUE, "got %d\n", r);
 690     expect.eM11 = (FLOAT) lometric_wnd.cx / lometric_vp.cx;
 691     expect.eM22 = (FLOAT) lometric_wnd.cy / lometric_vp.cy;
 692     xform_near_match(__LINE__, &xform, &expect);
 693
 694
 695     SetGraphicsMode(hdc, GM_ADVANCED);
 696
 697     expect.eM11 = 10.0;
 698     expect.eM22 = 20.0;
 699     SetWorldTransform(hdc, &expect);
 700     r = pGetTransform(hdc, 0x203, &xform);  /* World -> Page */
 701     ok(r == TRUE, "got %d\n", r);
 702     xform_near_match(__LINE__, &xform, &expect);
 703
 704     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 705     ok(r == TRUE, "got %d\n", r);
 706     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 707     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 708     xform_near_match(__LINE__, &xform, &expect);
 709
 710     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 711     ok(r == TRUE, "got %d\n", r);
 712     expect.eM11 *= 10.0;
 713     expect.eM22 *= 20.0;
 714     xform_near_match(__LINE__, &xform, &expect);
 715
 716     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 717     ok(r == TRUE, "got %d\n", r);
 718     expect.eM11 = 1 / expect.eM11;
 719     expect.eM22 = 1 / expect.eM22;
 720     xform_near_match(__LINE__, &xform, &expect);
 721
 722     r = pGetTransform(hdc, 0x102, &xform);
 723     ok(r == FALSE, "got %d\n", r);
 724     r = pGetTransform(hdc, 0x103, &xform);
 725     ok(r == FALSE, "got %d\n", r);
 726     r = pGetTransform(hdc, 0x104, &xform);
 727     ok(r == FALSE, "got %d\n", r);
 728     r = pGetTransform(hdc, 0x202, &xform);
 729     ok(r == FALSE, "got %d\n", r);
 730     r = pGetTransform(hdc, 0x302, &xform);
 731     ok(r == FALSE, "got %d\n", r);
 732     r = pGetTransform(hdc, 0x303, &xform);
 733     ok(r == FALSE, "got %d\n", r);
 734     r = pGetTransform(hdc, 0x403, &xform);
 735     ok(r == FALSE, "got %d\n", r);
 736     r = pGetTransform(hdc, 0x404, &xform);
 737     ok(r == FALSE, "got %d\n", r);
 738     r = pGetTransform(hdc, 0xffff, &xform);
 739     ok(r == FALSE, "got %d\n", r);
 740 }
 741
 742 START_TEST(mapping)
 743 {
 744     HMODULE mod = GetModuleHandleA("gdi32.dll");
 745     pGetLayout = (void *)GetProcAddress( mod, "GetLayout" );
 746     pSetLayout = (void *)GetProcAddress( mod, "SetLayout" );
 747     pGetRandomRgn = (void *)GetProcAddress( mod, "GetRandomRgn" );
 748     pGetTransform = (void *)GetProcAddress( mod, "GetTransform" );
 749     pSetVirtualResolution = (void *)GetProcAddress( mod, "SetVirtualResolution" );
 750
 751     test_modify_world_transform();
 752     test_world_transform();
 753     test_dc_layout();
 754     test_isotropic_mapping();
 755     test_setvirtualresolution();
 756     test_gettransform();
 757 }