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 *pSetLayout)(HDC hdc, DWORD layout);
  32 static DWORD (WINAPI *pGetLayout)(HDC hdc);
  33 static INT (WINAPI *pGetRandomRgn)(HDC hDC, HRGN hRgn, INT iCode);
  34 static BOOL (WINAPI *pGetTransform)(HDC, DWORD, XFORM *);
  35 static DWORD (WINAPI *pSetVirtualResolution)(HDC, DWORD, DWORD, DWORD, DWORD);
  36
  37 #define rough_match(got, expected) (abs( MulDiv( (got) - (expected), 1000, (expected) )) <= 5)
  38
  39 #define expect_LPtoDP(_hdc, _x, _y) \
  40 { \
  41     POINT _pt = { 1000, 1000 }; \
  42     LPtoDP(_hdc, &_pt, 1); \
  43     ok(rough_match(_pt.x, _x), "expected x %d, got %d\n", (_x), _pt.x); \
  44     ok(rough_match(_pt.y, _y), "expected y %d, got %d\n", (_y), _pt.y); \
  45 }
  46
  47 #define expect_world_transform(_hdc, _em11, _em22) \
  48 { \
  49     BOOL _ret; \
  50     XFORM _xform; \
  51     SetLastError(0xdeadbeef); \
  52     _ret = GetWorldTransform(_hdc, &_xform); \
  53     if (GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) \
  54     { \
  55         ok(_ret, "GetWorldTransform error %u\n", GetLastError()); \
  56         ok(_xform.eM11 == (_em11), "expected %f, got %f\n", (_em11), _xform.eM11); \
  57         ok(_xform.eM12 == 0.0, "expected 0.0, got %f\n", _xform.eM12); \
  58         ok(_xform.eM21 == 0.0, "expected 0.0, got %f\n", _xform.eM21); \
  59         ok(_xform.eM22 == (_em22), "expected %f, got %f\n", (_em22), _xform.eM22); \
  60         ok(_xform.eDx == 0.0, "expected 0.0, got %f\n", _xform.eDx); \
  61         ok(_xform.eDy == 0.0, "expected 0.0, got %f\n", _xform.eDy); \
  62     } \
  63 }
  64
  65 #define expect_dc_ext(_func, _hdc, _cx, _cy) \
  66 { \
  67     BOOL _ret; \
  68     SIZE _size; \
  69     SetLastError(0xdeadbeef); \
  70     _ret = _func(_hdc, &_size); \
  71     ok(_ret, #_func " error %u\n", GetLastError()); \
  72     ok(_size.cx == (_cx), "expected cx %d, got %d\n", (_cx), _size.cx); \
  73     ok(_size.cy == (_cy), "expected cy %d, got %d\n", (_cy), _size.cy); \
  74 }
  75
  76 #define expect_viewport_ext(_hdc, _cx, _cy) expect_dc_ext(GetViewportExtEx, _hdc, _cx, _cy)
  77 #define expect_window_ext(_hdc, _cx, _cy)  expect_dc_ext(GetWindowExtEx, _hdc, _cx, _cy)
  78
  79 static void test_world_transform(void)
  80 {
  81     HDC hdc;
  82     INT ret, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
  83     XFORM xform;
  84     SIZE size;
  85
  86     hdc = CreateCompatibleDC(0);
  87
  88     xform.eM11 = 1.0f;
  89     xform.eM12 = 0.0f;
  90     xform.eM21 = 0.0f;
  91     xform.eM22 = 1.0f;
  92     xform.eDx = 0.0f;
  93     xform.eDy = 0.0f;
  94     ret = SetWorldTransform(hdc, &xform);
  95     ok(!ret, "SetWorldTransform should fail in GM_COMPATIBLE mode\n");
  96
  97     size_cx = GetDeviceCaps(hdc, HORZSIZE);
  98     size_cy = GetDeviceCaps(hdc, VERTSIZE);
  99     res_x = GetDeviceCaps(hdc, HORZRES);
 100     res_y = GetDeviceCaps(hdc, VERTRES);
 101     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
 102     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
 103     trace("dc size %d x %d, resolution %d x %d dpi %d x %d\n",
 104           size_cx, size_cy, res_x, res_y, dpi_x, dpi_y );
 105
 106     expect_viewport_ext(hdc, 1, 1);
 107     expect_window_ext(hdc, 1, 1);
 108     expect_world_transform(hdc, 1.0, 1.0);
 109     expect_LPtoDP(hdc, 1000, 1000);
 110
 111     SetLastError(0xdeadbeef);
 112     ret = SetMapMode(hdc, MM_LOMETRIC);
 113     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 114
 115     expect_viewport_ext(hdc, res_x, -res_y);
 116     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 117     ok( rough_match( size.cx, size_cx * 10 ) ||
 118         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 119         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 120     ok( rough_match( size.cy, size_cy * 10 ) ||
 121         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 122         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 123     expect_world_transform(hdc, 1.0, 1.0);
 124     expect_LPtoDP(hdc, MulDiv(1000 / 10, res_x, size_cx), -MulDiv(1000 / 10, res_y, size_cy));
 125
 126     SetLastError(0xdeadbeef);
 127     ret = SetMapMode(hdc, MM_TEXT);
 128     ok(ret == MM_LOMETRIC, "expected MM_LOMETRIC, got %d\n", ret);
 129
 130     expect_viewport_ext(hdc, 1, 1);
 131     expect_window_ext(hdc, 1, 1);
 132     expect_world_transform(hdc, 1.0, 1.0);
 133     expect_LPtoDP(hdc, 1000, 1000);
 134
 135     ret = SetGraphicsMode(hdc, GM_ADVANCED);
 136     if (!ret)
 137     {
 138         DeleteDC(hdc);
 139         skip("GM_ADVANCED is not supported on this platform\n");
 140         return;
 141     }
 142
 143     expect_viewport_ext(hdc, 1, 1);
 144     expect_window_ext(hdc, 1, 1);
 145     expect_world_transform(hdc, 1.0, 1.0);
 146     expect_LPtoDP(hdc, 1000, 1000);
 147
 148     /* The transform must conform to (eM11 * eM22 != eM12 * eM21) requirement */
 149     xform.eM11 = 1.0f;
 150     xform.eM12 = 2.0f;
 151     xform.eM21 = 1.0f;
 152     xform.eM22 = 2.0f;
 153     xform.eDx = 0.0f;
 154     xform.eDy = 0.0f;
 155     ret = SetWorldTransform(hdc, &xform);
 156     ok(!ret ||
 157        broken(ret), /* NT4 */
 158        "SetWorldTransform should fail with an invalid xform\n");
 159
 160     xform.eM11 = 20.0f;
 161     xform.eM12 = 0.0f;
 162     xform.eM21 = 0.0f;
 163     xform.eM22 = 20.0f;
 164     xform.eDx = 0.0f;
 165     xform.eDy = 0.0f;
 166     SetLastError(0xdeadbeef);
 167     ret = SetWorldTransform(hdc, &xform);
 168     ok(ret, "SetWorldTransform error %u\n", GetLastError());
 169
 170     expect_viewport_ext(hdc, 1, 1);
 171     expect_window_ext(hdc, 1, 1);
 172     expect_world_transform(hdc, 20.0, 20.0);
 173     expect_LPtoDP(hdc, 20000, 20000);
 174
 175     SetLastError(0xdeadbeef);
 176     ret = SetMapMode(hdc, MM_LOMETRIC);
 177     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 178
 179     expect_viewport_ext(hdc, res_x, -res_y);
 180     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 181     ok( rough_match( size.cx, size_cx * 10 ) ||
 182         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 183         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 184     ok( rough_match( size.cy, size_cy * 10 ) ||
 185         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 186         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 187     expect_world_transform(hdc, 20.0, 20.0);
 188     expect_LPtoDP(hdc, MulDiv(20000, res_x, size.cx), -MulDiv(20000, res_y, size.cy));
 189
 190     SetLastError(0xdeadbeef);
 191     ret = SetMapMode(hdc, MM_TEXT);
 192     ok(ret == MM_LOMETRIC, "expected MM_LOMETRIC, got %d\n", ret);
 193
 194     expect_viewport_ext(hdc, 1, 1);
 195     expect_window_ext(hdc, 1, 1);
 196     expect_world_transform(hdc, 20.0, 20.0);
 197     expect_LPtoDP(hdc, 20000, 20000);
 198
 199     size.cx = 0xdeadbeef;
 200     size.cy = 0xdeadbeef;
 201     ret = SetViewportExtEx(hdc, -1, -1, &size);
 202     ok(ret, "SetViewportExtEx(-1, -1) failed\n");
 203     ok(size.cx == 1 && size.cy == 1, "expected 1,1 got %d,%d\n", size.cx, size.cy);
 204     expect_viewport_ext(hdc, 1, 1);
 205     expect_window_ext(hdc, 1, 1);
 206     expect_world_transform(hdc, 20.0, 20.0);
 207     expect_LPtoDP(hdc, 20000, 20000);
 208
 209     ret = SetMapMode(hdc, MM_ANISOTROPIC);
 210     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 211
 212     expect_viewport_ext(hdc, 1, 1);
 213     expect_window_ext(hdc, 1, 1);
 214     expect_world_transform(hdc, 20.0, 20.0);
 215     expect_LPtoDP(hdc, 20000, 20000);
 216
 217     size.cx = 0xdeadbeef;
 218     size.cy = 0xdeadbeef;
 219     ret = SetViewportExtEx(hdc, -1, -1, &size);
 220     ok(ret, "SetViewportExtEx(-1, -1) failed\n");
 221     ok(size.cx == 1 && size.cy == 1, "expected 1,1 got %d,%d\n", size.cx, size.cy);
 222     expect_viewport_ext(hdc, -1, -1);
 223     expect_window_ext(hdc, 1, 1);
 224     expect_world_transform(hdc, 20.0, 20.0);
 225     expect_LPtoDP(hdc, -20000, -20000);
 226
 227     ret = SetGraphicsMode(hdc, GM_COMPATIBLE);
 228     ok(ret, "SetGraphicsMode(GM_COMPATIBLE) should not fail if DC has't an identity transform\n");
 229     ret = GetGraphicsMode(hdc);
 230     ok(ret == GM_COMPATIBLE, "expected GM_COMPATIBLE, got %d\n", ret);
 231
 232     expect_viewport_ext(hdc, -1, -1);
 233     expect_window_ext(hdc, 1, 1);
 234     expect_world_transform(hdc, 20.0, 20.0);
 235     expect_LPtoDP(hdc, -20000, -20000);
 236
 237     DeleteDC(hdc);
 238 }
 239
 240 static void test_dc_layout(void)
 241 {
 242     INT ret, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
 243     SIZE size;
 244     POINT pt;
 245     HBITMAP bitmap;
 246     RECT rc, ret_rc;
 247     HDC hdc;
 248     HRGN hrgn;
 249
 250     if (!pGetLayout || !pSetLayout)
 251     {
 252         win_skip( "Don't have SetLayout\n" );
 253         return;
 254     }
 255
 256     hdc = CreateCompatibleDC(0);
 257     bitmap = CreateCompatibleBitmap( hdc, 100, 100 );
 258     SelectObject( hdc, bitmap );
 259
 260     size_cx = GetDeviceCaps(hdc, HORZSIZE);
 261     size_cy = GetDeviceCaps(hdc, VERTSIZE);
 262     res_x = GetDeviceCaps(hdc, HORZRES);
 263     res_y = GetDeviceCaps(hdc, VERTRES);
 264     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
 265     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
 266
 267     ret = GetMapMode( hdc );
 268     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 269     expect_viewport_ext(hdc, 1, 1);
 270     expect_window_ext(hdc, 1, 1);
 271     expect_world_transform(hdc, 1.0, 1.0);
 272     expect_LPtoDP(hdc, 1000, 1000);
 273
 274     pSetLayout( hdc, LAYOUT_RTL );
 275     if (!pGetLayout( hdc ))
 276     {
 277         win_skip( "SetLayout not supported\n" );
 278         DeleteDC(hdc);
 279         return;
 280     }
 281
 282     ret = GetMapMode( hdc );
 283     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 284     expect_viewport_ext(hdc, 1, 1);
 285     expect_window_ext(hdc, 1, 1);
 286     expect_world_transform(hdc, 1.0, 1.0);
 287     expect_LPtoDP(hdc, -1000 + 99, 1000);
 288     GetViewportOrgEx( hdc, &pt );
 289     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 290     GetWindowOrgEx( hdc, &pt );
 291     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 292     GetDCOrgEx( hdc, &pt );
 293     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 294     if (pGetTransform)
 295     {
 296         XFORM xform;
 297         BOOL ret = pGetTransform( hdc, 0x204, &xform ); /* World -> Device */
 298         ok( ret, "got %d\n", ret );
 299         ok( xform.eM11 == -1.0, "got %f\n", xform.eM11 );
 300         ok( xform.eM12 == 0.0, "got %f\n", xform.eM12 );
 301         ok( xform.eM21 == 0.0, "got %f\n", xform.eM21 );
 302         ok( xform.eM22 == 1.0, "got %f\n", xform.eM22 );
 303         ok( xform.eDx == 99.0, "got %f\n", xform.eDx );
 304         ok( xform.eDy == 0.0, "got %f\n", xform.eDy );
 305     }
 306
 307     SetRect( &rc, 10, 10, 20, 20 );
 308     IntersectClipRect( hdc, 10, 10, 20, 20 );
 309     hrgn = CreateRectRgn( 0, 0, 0, 0 );
 310     GetClipRgn( hdc, hrgn );
 311     GetRgnBox( hrgn, &ret_rc );
 312     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 313         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 314     pSetLayout( 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 %d,%d - %d,%d\n",
 319         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 320     GetClipBox( hdc, &ret_rc );
 321     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 322         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 323     IntersectClipRect( hdc, 80, 10, 85, 20 );
 324     pSetLayout( hdc, LAYOUT_RTL );
 325     SetRect( &rc, 15, 10, 20, 20 );
 326     GetClipRgn( hdc, hrgn );
 327     GetRgnBox( hrgn, &ret_rc );
 328     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 329         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 330     GetClipBox( hdc, &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     SetRectRgn( hrgn, 60, 10, 80, 20 );
 334     pSetLayout( hdc, LAYOUT_LTR );
 335     ExtSelectClipRgn( hdc, hrgn, RGN_OR );
 336     pSetLayout( hdc, LAYOUT_RTL );
 337     SetRect( &rc, 15, 10, 40, 20 );
 338     GetClipRgn( hdc, hrgn );
 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     GetClipBox( hdc, &ret_rc );
 343     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 344         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 345
 346     /* OffsetClipRgn mirrors too */
 347     OffsetClipRgn( hdc, 5, 5 );
 348     OffsetRect( &rc, 5, 5 );
 349     GetClipRgn( hdc, hrgn );
 350     GetRgnBox( hrgn, &ret_rc );
 351     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 352         ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 353
 354     /* GetRandomRgn returns the raw region */
 355     if (pGetRandomRgn)
 356     {
 357         SetRect( &rc, 55, 15, 80, 25 );
 358         pGetRandomRgn( hdc, hrgn, 1 );
 359         GetRgnBox( hrgn, &ret_rc );
 360         ok( EqualRect( &rc, &ret_rc ), "wrong clip box %d,%d - %d,%d\n",
 361             ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom );
 362     }
 363
 364     SetMapMode(hdc, MM_LOMETRIC);
 365     ret = GetMapMode( hdc );
 366     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 367
 368     expect_viewport_ext(hdc, res_x, -res_y);
 369     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 370     ok( rough_match( size.cx, size_cx * 10 ) ||
 371         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 372         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 373     ok( rough_match( size.cy, size_cy * 10 ) ||
 374         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 375         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 376     expect_world_transform(hdc, 1.0, 1.0);
 377     expect_LPtoDP(hdc, -MulDiv(1000 / 10, res_x, size_cx) + 99, -MulDiv(1000 / 10, res_y, size_cy));
 378
 379     SetMapMode(hdc, MM_TEXT);
 380     ret = GetMapMode( hdc );
 381     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 382     pSetLayout( hdc, LAYOUT_LTR );
 383     ret = GetMapMode( hdc );
 384     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 385     SetMapMode(hdc, MM_TEXT);
 386     ret = GetMapMode( hdc );
 387     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 388
 389     DeleteDC(hdc);
 390     DeleteObject( bitmap );
 391 }
 392
 393 static void test_modify_world_transform(void)
 394 {
 395     HDC hdc = GetDC(0);
 396     int ret;
 397
 398     ret = SetGraphicsMode(hdc, GM_ADVANCED);
 399     ok(ret, "ret = %d\n", ret);
 400
 401     ret = ModifyWorldTransform(hdc, NULL, MWT_IDENTITY);
 402     ok(ret, "ret = %d\n", ret);
 403
 404     ret = ModifyWorldTransform(hdc, NULL, MWT_LEFTMULTIPLY);
 405     ok(!ret, "ret = %d\n", ret);
 406
 407     ret = ModifyWorldTransform(hdc, NULL, MWT_RIGHTMULTIPLY);
 408     ok(!ret, "ret = %d\n", ret);
 409
 410     ReleaseDC(0, hdc);
 411 }
 412
 413 static void test_SetWindowExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 414 {
 415     SIZE windowExt, viewportExt;
 416     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 417
 418     GetWindowOrgEx(hdc, &windowOrg);
 419     GetViewportOrgEx(hdc, &viewportOrg);
 420
 421     SetWindowExtEx(hdc, cx, cy, NULL);
 422     GetWindowExtEx(hdc, &windowExt);
 423     ok(windowExt.cx == cx && windowExt.cy == cy,
 424        "Window extension: Expected %dx%d, got %dx%d\n",
 425        cx, cy, windowExt.cx, windowExt.cy);
 426
 427     GetViewportExtEx(hdc, &viewportExt);
 428     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 429         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 430         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 431
 432     GetWindowOrgEx(hdc, &windowOrgAfter);
 433     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 434         "Window origin changed from (%d,%d) to (%d,%d)\n",
 435         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 436
 437     GetViewportOrgEx(hdc, &viewportOrgAfter);
 438     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 439         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
 440         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 441 }
 442
 443 static void test_SetViewportExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 444 {
 445     SIZE windowExt, windowExtAfter, viewportExt;
 446     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 447
 448     GetWindowOrgEx(hdc, &windowOrg);
 449     GetViewportOrgEx(hdc, &viewportOrg);
 450     GetWindowExtEx(hdc, &windowExt);
 451
 452     SetViewportExtEx(hdc, cx, cy, NULL);
 453     GetViewportExtEx(hdc, &viewportExt);
 454     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 455         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 456         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 457
 458     GetWindowExtEx(hdc, &windowExtAfter);
 459     ok(windowExt.cx == windowExtAfter.cx && windowExt.cy == windowExtAfter.cy,
 460        "Window extension changed from %dx%d to %dx%d\n",
 461        windowExt.cx, windowExt.cy, windowExtAfter.cx, windowExtAfter.cy);
 462
 463     GetWindowOrgEx(hdc, &windowOrgAfter);
 464     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 465         "Window origin changed from (%d,%d) to (%d,%d)\n",
 466         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 467
 468     GetViewportOrgEx(hdc, &viewportOrgAfter);
 469     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 470         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
 471         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 472 }
 473
 474 static void test_isotropic_mapping(void)
 475 {
 476     SIZE win, vp;
 477     HDC hdc = GetDC(0);
 478
 479     SetMapMode(hdc, MM_ISOTROPIC);
 480
 481     /* MM_ISOTROPIC is set up like MM_LOMETRIC.
 482        Initial values after SetMapMode():
 483        (1 inch = 25.4 mm)
 484
 485                        Windows 9x:               Windows NT:
 486        Window Ext:     254 x -254                HORZSIZE*10 x VERTSIZE*10
 487        Viewport Ext:   LOGPIXELSX x LOGPIXELSY   HORZRES x -VERTRES
 488
 489        To test without rounding errors, we have to use multiples of
 490        these values!
 491      */
 492
 493     GetWindowExtEx(hdc, &win);
 494     GetViewportExtEx(hdc, &vp);
 495
 496     test_SetViewportExt(hdc, 10 * vp.cx, 10 * vp.cy, 10 * vp.cx, 10 * vp.cy);
 497     test_SetWindowExt(hdc, win.cx, win.cy, 10 * vp.cx, 10 * vp.cy);
 498     test_SetWindowExt(hdc, 2 * win.cx, win.cy, 10 * vp.cx, 5 * vp.cy);
 499     test_SetWindowExt(hdc, win.cx, win.cy, 5 * vp.cx, 5 * vp.cy);
 500     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 501     test_SetViewportExt(hdc, vp.cx, 2 * vp.cy, vp.cx, vp.cy);
 502     test_SetViewportExt(hdc, 2 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 503     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 504     test_SetWindowExt(hdc, 4 * win.cx, 2 * win.cy, 2 * vp.cx, vp.cy);
 505     test_SetViewportExt(hdc, -2 * vp.cx, -4 * vp.cy, -2 * vp.cx, -vp.cy);
 506     test_SetViewportExt(hdc, -2 * vp.cx, -1 * vp.cy, -2 * vp.cx, -vp.cy);
 507     test_SetWindowExt(hdc, -4 * win.cx, -2 * win.cy, -2 * vp.cx, -vp.cy);
 508     test_SetWindowExt(hdc, 4 * win.cx, -4 * win.cy, -vp.cx, -vp.cy);
 509
 510     ReleaseDC(0, hdc);
 511 }
 512
 513 static void test_setvirtualresolution(void)
 514 {
 515     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 516     DWORD r;
 517     INT horz_res = GetDeviceCaps(hdc, HORZRES);
 518     INT horz_size = GetDeviceCaps(hdc, HORZSIZE);
 519     INT log_pixels_x = GetDeviceCaps(hdc, LOGPIXELSX);
 520     SIZE orig_lometric_vp, orig_lometric_wnd;
 521
 522     if(!pSetVirtualResolution)
 523     {
 524         win_skip("Don't have SetVirtualResolution\n");
 525         return;
 526     }
 527
 528     /* Get the true resolution limits */
 529     SetMapMode(hdc, MM_LOMETRIC);
 530     GetViewportExtEx(hdc, &orig_lometric_vp);
 531     GetWindowExtEx(hdc, &orig_lometric_wnd);
 532     SetMapMode(hdc, MM_TEXT);
 533
 534     r = pSetVirtualResolution(hdc, 4000, 1000, 400, 200); /* 10 pix/mm x 5 pix/mm */
 535     ok(r == TRUE, "got %d\n", r);
 536     expect_LPtoDP(hdc, 1000, 1000);
 537     expect_viewport_ext(hdc, 1, 1);
 538     expect_window_ext(hdc, 1, 1);
 539
 540     SetMapMode(hdc, MM_LOMETRIC);
 541     expect_LPtoDP(hdc, 1000, -500);
 542     expect_viewport_ext(hdc, 4000, -1000);
 543     expect_window_ext(hdc, 4000, 2000);
 544
 545     /* Doesn't change the device caps */
 546     ok(horz_res == GetDeviceCaps(hdc, HORZRES), "horz_res changed\n");
 547     ok(horz_size == GetDeviceCaps(hdc, HORZSIZE), "horz_size changed\n");
 548     ok(log_pixels_x == GetDeviceCaps(hdc, LOGPIXELSX), "log_pixels_x changed\n");
 549
 550     r = pSetVirtualResolution(hdc, 8000, 1000, 400, 200); /* 20 pix/mm x 5 pix/mm */
 551     ok(r == TRUE, "got %d\n", r);
 552     expect_LPtoDP(hdc, 1000, -500); /* No change, need to re-set the mapping mode */
 553     SetMapMode(hdc, MM_TEXT);
 554     SetMapMode(hdc, MM_LOMETRIC);
 555     expect_LPtoDP(hdc, 2000, -500);
 556     expect_viewport_ext(hdc, 8000, -1000);
 557     expect_window_ext(hdc, 4000, 2000);
 558
 559     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 560     ok(r == TRUE, "got %d\n", r);
 561     SetMapMode(hdc, MM_TEXT);
 562     SetMapMode(hdc, MM_LOMETRIC);
 563     expect_LPtoDP(hdc, 4000, -500);
 564     expect_viewport_ext(hdc, 8000, -1000);
 565     expect_window_ext(hdc, 2000, 2000);
 566
 567     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 568     ok(r == TRUE, "got %d\n", r);
 569     SetMapMode(hdc, MM_TEXT);
 570     SetMapMode(hdc, MM_LOMETRIC);
 571     expect_LPtoDP(hdc, 4000, -500);
 572     expect_viewport_ext(hdc, 8000, -1000);
 573     expect_window_ext(hdc, 2000, 2000);
 574
 575     r = pSetVirtualResolution(hdc, 8000, 2000, 200, 200); /* 40 pix/mm x 10 pix/mm */
 576     ok(r == TRUE, "got %d\n", r);
 577     SetMapMode(hdc, MM_TEXT);
 578     SetMapMode(hdc, MM_LOMETRIC);
 579     expect_LPtoDP(hdc, 4000, -1000);
 580     expect_viewport_ext(hdc, 8000, -2000);
 581     expect_window_ext(hdc, 2000, 2000);
 582
 583     r = pSetVirtualResolution(hdc, 0, 0, 10, 0); /* Error */
 584     ok(r == FALSE, "got %d\n", r);
 585     SetMapMode(hdc, MM_TEXT);
 586     SetMapMode(hdc, MM_LOMETRIC);
 587     expect_LPtoDP(hdc, 4000, -1000);
 588     expect_viewport_ext(hdc, 8000, -2000);
 589     expect_window_ext(hdc, 2000, 2000);
 590
 591     r = pSetVirtualResolution(hdc, 0, 0, 0, 0); /* Reset to true resolution */
 592     ok(r == TRUE, "got %d\n", r);
 593     SetMapMode(hdc, MM_TEXT);
 594     SetMapMode(hdc, MM_LOMETRIC);
 595     expect_viewport_ext(hdc, orig_lometric_vp.cx, orig_lometric_vp.cy);
 596     expect_window_ext(hdc, orig_lometric_wnd.cx, orig_lometric_wnd.cy);
 597
 598     DeleteDC(hdc);
 599 }
 600
 601
 602 static inline void expect_identity(int line, XFORM *xf)
 603 {
 604     ok(xf->eM11 == 1.0, "%d: got %f\n", line, xf->eM11);
 605     ok(xf->eM12 == 0.0, "%d: got %f\n", line, xf->eM12);
 606     ok(xf->eM21 == 0.0, "%d: got %f\n", line, xf->eM21);
 607     ok(xf->eM22 == 1.0, "%d: got %f\n", line, xf->eM22);
 608     ok(xf->eDx == 0.0, "%d: got %f\n", line, xf->eDx);
 609     ok(xf->eDy == 0.0, "%d: got %f\n", line, xf->eDy);
 610 }
 611
 612 static inline void xform_near_match(int line, XFORM *got, XFORM *expect)
 613 {
 614     ok(fabs(got->eM11 - expect->eM11) < 0.001, "%d: got %f expect %f\n", line, got->eM11, expect->eM11);
 615     ok(fabs(got->eM12 - expect->eM12) < 0.001, "%d: got %f expect %f\n", line, got->eM12, expect->eM12);
 616     ok(fabs(got->eM21 - expect->eM21) < 0.001, "%d: got %f expect %f\n", line, got->eM21, expect->eM21);
 617     ok(fabs(got->eM22 - expect->eM22) < 0.001, "%d: got %f expect %f\n", line, got->eM22, expect->eM22);
 618     ok(fabs(got->eDx - expect->eDx) < 0.001, "%d: got %f expect %f\n", line, got->eDx, expect->eDx);
 619     ok(fabs(got->eDy - expect->eDy) < 0.001, "%d: got %f expect %f\n", line, got->eDy, expect->eDy);
 620 }
 621
 622
 623 static void test_gettransform(void)
 624 {
 625     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 626     XFORM xform, expect;
 627     BOOL r;
 628     SIZE lometric_vp, lometric_wnd;
 629
 630     if(!pGetTransform)
 631     {
 632         win_skip("Don't have GetTransform\n");
 633         return;
 634     }
 635
 636     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 637     ok(r == TRUE, "got %d\n", r);
 638     expect_identity(__LINE__, &xform);
 639     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 640     ok(r == TRUE, "got %d\n", r);
 641     expect_identity(__LINE__, &xform);
 642     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 643     ok(r == TRUE, "got %d\n", r);
 644     expect_identity(__LINE__, &xform);
 645     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 646     ok(r == TRUE, "got %d\n", r);
 647     expect_identity(__LINE__, &xform);
 648
 649     SetMapMode(hdc, MM_LOMETRIC);
 650     GetViewportExtEx(hdc, &lometric_vp);
 651     GetWindowExtEx(hdc, &lometric_wnd);
 652
 653     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 654     ok(r == TRUE, "got %d\n", r);
 655     expect_identity(__LINE__, &xform);
 656
 657     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 658     ok(r == TRUE, "got %d\n", r);
 659     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 660     expect.eM12 = expect.eM21 = 0.0;
 661     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 662     expect.eDx = expect.eDy = 0.0;
 663     xform_near_match(__LINE__, &xform, &expect);
 664
 665     r = pGetTransform(hdc, 0x204, &xform);  /* World -> Device */
 666     ok(r == TRUE, "got %d\n", r);
 667     xform_near_match(__LINE__, &xform, &expect);
 668
 669     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 670     ok(r == TRUE, "got %d\n", r);
 671     expect.eM11 = (FLOAT) lometric_wnd.cx / lometric_vp.cx;
 672     expect.eM22 = (FLOAT) lometric_wnd.cy / lometric_vp.cy;
 673     xform_near_match(__LINE__, &xform, &expect);
 674
 675
 676     SetGraphicsMode(hdc, GM_ADVANCED);
 677
 678     expect.eM11 = 10.0;
 679     expect.eM22 = 20.0;
 680     SetWorldTransform(hdc, &expect);
 681     r = pGetTransform(hdc, 0x203, &xform);  /* World -> Page */
 682     ok(r == TRUE, "got %d\n", r);
 683     xform_near_match(__LINE__, &xform, &expect);
 684
 685     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 686     ok(r == TRUE, "got %d\n", r);
 687     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 688     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 689     xform_near_match(__LINE__, &xform, &expect);
 690
 691     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 692     ok(r == TRUE, "got %d\n", r);
 693     expect.eM11 *= 10.0;
 694     expect.eM22 *= 20.0;
 695     xform_near_match(__LINE__, &xform, &expect);
 696
 697     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 698     ok(r == TRUE, "got %d\n", r);
 699     expect.eM11 = 1 / expect.eM11;
 700     expect.eM22 = 1 / expect.eM22;
 701     xform_near_match(__LINE__, &xform, &expect);
 702
 703     r = pGetTransform(hdc, 0x102, &xform);
 704     ok(r == FALSE, "got %d\n", r);
 705     r = pGetTransform(hdc, 0x103, &xform);
 706     ok(r == FALSE, "got %d\n", r);
 707     r = pGetTransform(hdc, 0x104, &xform);
 708     ok(r == FALSE, "got %d\n", r);
 709     r = pGetTransform(hdc, 0x202, &xform);
 710     ok(r == FALSE, "got %d\n", r);
 711     r = pGetTransform(hdc, 0x302, &xform);
 712     ok(r == FALSE, "got %d\n", r);
 713     r = pGetTransform(hdc, 0x303, &xform);
 714     ok(r == FALSE, "got %d\n", r);
 715     r = pGetTransform(hdc, 0x403, &xform);
 716     ok(r == FALSE, "got %d\n", r);
 717     r = pGetTransform(hdc, 0x404, &xform);
 718     ok(r == FALSE, "got %d\n", r);
 719     r = pGetTransform(hdc, 0xffff, &xform);
 720     ok(r == FALSE, "got %d\n", r);
 721 }
 722
 723 START_TEST(mapping)
 724 {
 725     HMODULE mod = GetModuleHandleA("gdi32.dll");
 726     pGetLayout = (void *)GetProcAddress( mod, "GetLayout" );
 727     pSetLayout = (void *)GetProcAddress( mod, "SetLayout" );
 728     pGetRandomRgn = (void *)GetProcAddress( mod, "GetRandomRgn" );
 729     pGetTransform = (void *)GetProcAddress( mod, "GetTransform" );
 730     pSetVirtualResolution = (void *)GetProcAddress( mod, "SetVirtualResolution" );
 731
 732     test_modify_world_transform();
 733     test_world_transform();
 734     test_dc_layout();
 735     test_isotropic_mapping();
 736     test_setvirtualresolution();
 737     test_gettransform();
 738 }