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 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     BOOL is_win9x;
  82     HDC hdc;
  83     INT ret, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
  84     XFORM xform;
  85     SIZE size;
  86
  87     SetLastError(0xdeadbeef);
  88     GetWorldTransform(0, NULL);
  89     is_win9x = GetLastError() == ERROR_CALL_NOT_IMPLEMENTED;
  90
  91     hdc = CreateCompatibleDC(0);
  92
  93     xform.eM11 = 1.0f;
  94     xform.eM12 = 0.0f;
  95     xform.eM21 = 0.0f;
  96     xform.eM22 = 1.0f;
  97     xform.eDx = 0.0f;
  98     xform.eDy = 0.0f;
  99     ret = SetWorldTransform(hdc, &xform);
 100     ok(!ret, "SetWorldTransform should fail in GM_COMPATIBLE mode\n");
 101
 102     size_cx = GetDeviceCaps(hdc, HORZSIZE);
 103     size_cy = GetDeviceCaps(hdc, VERTSIZE);
 104     res_x = GetDeviceCaps(hdc, HORZRES);
 105     res_y = GetDeviceCaps(hdc, VERTRES);
 106     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
 107     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
 108     trace("dc size %d x %d, resolution %d x %d dpi %d x %d\n",
 109           size_cx, size_cy, res_x, res_y, dpi_x, dpi_y );
 110
 111     expect_viewport_ext(hdc, 1, 1);
 112     expect_window_ext(hdc, 1, 1);
 113     expect_world_transform(hdc, 1.0, 1.0);
 114     expect_LPtoDP(hdc, 1000, 1000);
 115
 116     SetLastError(0xdeadbeef);
 117     ret = SetMapMode(hdc, MM_LOMETRIC);
 118     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 119
 120     if (is_win9x)
 121     {
 122         expect_viewport_ext(hdc, dpi_x, dpi_y);
 123         expect_window_ext(hdc, 254, -254);
 124     }
 125     else
 126     {
 127         expect_viewport_ext(hdc, res_x, -res_y);
 128         ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 129         ok( rough_match( size.cx, size_cx * 10 ) ||
 130             rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 131             "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 132         ok( rough_match( size.cy, size_cy * 10 ) ||
 133             rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 134             "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 135     }
 136     expect_world_transform(hdc, 1.0, 1.0);
 137     expect_LPtoDP(hdc, MulDiv(1000 / 10, res_x, size_cx), -MulDiv(1000 / 10, res_y, size_cy));
 138
 139     SetLastError(0xdeadbeef);
 140     ret = SetMapMode(hdc, MM_TEXT);
 141     ok(ret == MM_LOMETRIC, "expected MM_LOMETRIC, got %d\n", ret);
 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     ret = SetGraphicsMode(hdc, GM_ADVANCED);
 149     if (!ret)
 150     {
 151         DeleteDC(hdc);
 152         skip("GM_ADVANCED is not supported on this platform\n");
 153         return;
 154     }
 155
 156     expect_viewport_ext(hdc, 1, 1);
 157     expect_window_ext(hdc, 1, 1);
 158     expect_world_transform(hdc, 1.0, 1.0);
 159     expect_LPtoDP(hdc, 1000, 1000);
 160
 161     /* The transform must conform to (eM11 * eM22 != eM12 * eM21) requirement */
 162     xform.eM11 = 1.0f;
 163     xform.eM12 = 2.0f;
 164     xform.eM21 = 1.0f;
 165     xform.eM22 = 2.0f;
 166     xform.eDx = 0.0f;
 167     xform.eDy = 0.0f;
 168     ret = SetWorldTransform(hdc, &xform);
 169     ok(!ret ||
 170        broken(ret), /* NT4 */
 171        "SetWorldTransform should fail with an invalid xform\n");
 172
 173     xform.eM11 = 20.0f;
 174     xform.eM12 = 0.0f;
 175     xform.eM21 = 0.0f;
 176     xform.eM22 = 20.0f;
 177     xform.eDx = 0.0f;
 178     xform.eDy = 0.0f;
 179     SetLastError(0xdeadbeef);
 180     ret = SetWorldTransform(hdc, &xform);
 181     ok(ret, "SetWorldTransform error %u\n", GetLastError());
 182
 183     expect_viewport_ext(hdc, 1, 1);
 184     expect_window_ext(hdc, 1, 1);
 185     expect_world_transform(hdc, 20.0, 20.0);
 186     expect_LPtoDP(hdc, 20000, 20000);
 187
 188     SetLastError(0xdeadbeef);
 189     ret = SetMapMode(hdc, MM_LOMETRIC);
 190     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 191
 192     expect_viewport_ext(hdc, res_x, -res_y);
 193     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 194     ok( rough_match( size.cx, size_cx * 10 ) ||
 195         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 196         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 197     ok( rough_match( size.cy, size_cy * 10 ) ||
 198         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 199         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 200     expect_world_transform(hdc, 20.0, 20.0);
 201     expect_LPtoDP(hdc, MulDiv(20000, res_x, size.cx), -MulDiv(20000, res_y, size.cy));
 202
 203     SetLastError(0xdeadbeef);
 204     ret = SetMapMode(hdc, MM_TEXT);
 205     ok(ret == MM_LOMETRIC, "expected MM_LOMETRIC, got %d\n", ret);
 206
 207     expect_viewport_ext(hdc, 1, 1);
 208     expect_window_ext(hdc, 1, 1);
 209     expect_world_transform(hdc, 20.0, 20.0);
 210     expect_LPtoDP(hdc, 20000, 20000);
 211
 212     ret = SetGraphicsMode(hdc, GM_COMPATIBLE);
 213     ok(ret, "SetGraphicsMode(GM_COMPATIBLE) should not fail if DC has't an identity transform\n");
 214     ret = GetGraphicsMode(hdc);
 215     ok(ret == GM_COMPATIBLE, "expected GM_COMPATIBLE, got %d\n", ret);
 216
 217     expect_viewport_ext(hdc, 1, 1);
 218     expect_window_ext(hdc, 1, 1);
 219     expect_world_transform(hdc, 20.0, 20.0);
 220     expect_LPtoDP(hdc, 20000, 20000);
 221
 222     DeleteDC(hdc);
 223 }
 224
 225 static void test_dc_layout(void)
 226 {
 227     INT ret, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
 228     SIZE size;
 229     HDC hdc;
 230
 231     if (!pGetLayout || !pSetLayout)
 232     {
 233         win_skip( "Don't have SetLayout\n" );
 234         return;
 235     }
 236
 237     hdc = CreateCompatibleDC(0);
 238
 239     size_cx = GetDeviceCaps(hdc, HORZSIZE);
 240     size_cy = GetDeviceCaps(hdc, VERTSIZE);
 241     res_x = GetDeviceCaps(hdc, HORZRES);
 242     res_y = GetDeviceCaps(hdc, VERTRES);
 243     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
 244     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
 245
 246     ret = GetMapMode( hdc );
 247     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 248     expect_viewport_ext(hdc, 1, 1);
 249     expect_window_ext(hdc, 1, 1);
 250     expect_world_transform(hdc, 1.0, 1.0);
 251     expect_LPtoDP(hdc, 1000, 1000);
 252
 253     pSetLayout( hdc, LAYOUT_RTL );
 254     if (!pGetLayout( hdc ))
 255     {
 256         win_skip( "SetLayout not supported\n" );
 257         DeleteDC(hdc);
 258         return;
 259     }
 260
 261     ret = GetMapMode( hdc );
 262     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 263     expect_viewport_ext(hdc, 1, 1);
 264     expect_window_ext(hdc, 1, 1);
 265     expect_world_transform(hdc, 1.0, 1.0);
 266     expect_LPtoDP(hdc, -1000, 1000);
 267
 268     SetMapMode(hdc, MM_LOMETRIC);
 269     ret = GetMapMode( hdc );
 270     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 271
 272     expect_viewport_ext(hdc, res_x, -res_y);
 273     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 274     ok( rough_match( size.cx, size_cx * 10 ) ||
 275         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 276         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 277     ok( rough_match( size.cy, size_cy * 10 ) ||
 278         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 279         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 280     expect_world_transform(hdc, 1.0, 1.0);
 281     expect_LPtoDP(hdc, -MulDiv(1000 / 10, res_x, size_cx), -MulDiv(1000 / 10, res_y, size_cy));
 282
 283     SetMapMode(hdc, MM_TEXT);
 284     ret = GetMapMode( hdc );
 285     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 286     pSetLayout( hdc, LAYOUT_LTR );
 287     ret = GetMapMode( hdc );
 288     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 289     SetMapMode(hdc, MM_TEXT);
 290     ret = GetMapMode( hdc );
 291     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 292
 293     DeleteDC(hdc);
 294 }
 295
 296 static void test_modify_world_transform(void)
 297 {
 298     HDC hdc = GetDC(0);
 299     int ret;
 300
 301     ret = SetGraphicsMode(hdc, GM_ADVANCED);
 302     if(!ret) /* running in win9x so quit */
 303     {
 304         ReleaseDC(0, hdc);
 305         skip("GM_ADVANCED is not supported on this platform\n");
 306         return;
 307     }
 308
 309     ret = ModifyWorldTransform(hdc, NULL, MWT_IDENTITY);
 310     ok(ret, "ret = %d\n", ret);
 311
 312     ret = ModifyWorldTransform(hdc, NULL, MWT_LEFTMULTIPLY);
 313     ok(!ret, "ret = %d\n", ret);
 314
 315     ret = ModifyWorldTransform(hdc, NULL, MWT_RIGHTMULTIPLY);
 316     ok(!ret, "ret = %d\n", ret);
 317
 318     ReleaseDC(0, hdc);
 319 }
 320
 321 static void test_SetWindowExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 322 {
 323     SIZE windowExt, viewportExt;
 324     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 325
 326     GetWindowOrgEx(hdc, &windowOrg);
 327     GetViewportOrgEx(hdc, &viewportOrg);
 328
 329     SetWindowExtEx(hdc, cx, cy, NULL);
 330     GetWindowExtEx(hdc, &windowExt);
 331     ok(windowExt.cx == cx && windowExt.cy == cy,
 332        "Window extension: Expected %dx%d, got %dx%d\n",
 333        cx, cy, windowExt.cx, windowExt.cy);
 334
 335     GetViewportExtEx(hdc, &viewportExt);
 336     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 337         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 338         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 339
 340     GetWindowOrgEx(hdc, &windowOrgAfter);
 341     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 342         "Window origin changed from (%d,%d) to (%d,%d)\n",
 343         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 344
 345     GetViewportOrgEx(hdc, &viewportOrgAfter);
 346     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 347         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
 348         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 349 }
 350
 351 static void test_SetViewportExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 352 {
 353     SIZE windowExt, windowExtAfter, viewportExt;
 354     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 355
 356     GetWindowOrgEx(hdc, &windowOrg);
 357     GetViewportOrgEx(hdc, &viewportOrg);
 358     GetWindowExtEx(hdc, &windowExt);
 359
 360     SetViewportExtEx(hdc, cx, cy, NULL);
 361     GetViewportExtEx(hdc, &viewportExt);
 362     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 363         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 364         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 365
 366     GetWindowExtEx(hdc, &windowExtAfter);
 367     ok(windowExt.cx == windowExtAfter.cx && windowExt.cy == windowExtAfter.cy,
 368        "Window extension changed from %dx%d to %dx%d\n",
 369        windowExt.cx, windowExt.cy, windowExtAfter.cx, windowExtAfter.cy);
 370
 371     GetWindowOrgEx(hdc, &windowOrgAfter);
 372     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 373         "Window origin changed from (%d,%d) to (%d,%d)\n",
 374         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 375
 376     GetViewportOrgEx(hdc, &viewportOrgAfter);
 377     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 378         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
 379         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 380 }
 381
 382 static void test_isotropic_mapping(void)
 383 {
 384     SIZE win, vp;
 385     HDC hdc = GetDC(0);
 386
 387     SetMapMode(hdc, MM_ISOTROPIC);
 388
 389     /* MM_ISOTROPIC is set up like MM_LOMETRIC.
 390        Initial values after SetMapMode():
 391        (1 inch = 25.4 mm)
 392
 393                        Windows 9x:               Windows NT:
 394        Window Ext:     254 x -254                HORZSIZE*10 x VERTSIZE*10
 395        Viewport Ext:   LOGPIXELSX x LOGPIXELSY   HORZRES x -VERTRES
 396
 397        To test without rounding errors, we have to use multiples of
 398        these values!
 399      */
 400
 401     GetWindowExtEx(hdc, &win);
 402     GetViewportExtEx(hdc, &vp);
 403
 404     test_SetViewportExt(hdc, 10 * vp.cx, 10 * vp.cy, 10 * vp.cx, 10 * vp.cy);
 405     test_SetWindowExt(hdc, win.cx, win.cy, 10 * vp.cx, 10 * vp.cy);
 406     test_SetWindowExt(hdc, 2 * win.cx, win.cy, 10 * vp.cx, 5 * vp.cy);
 407     test_SetWindowExt(hdc, win.cx, win.cy, 5 * vp.cx, 5 * vp.cy);
 408     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 409     test_SetViewportExt(hdc, vp.cx, 2 * vp.cy, vp.cx, vp.cy);
 410     test_SetViewportExt(hdc, 2 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 411     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 412     test_SetWindowExt(hdc, 4 * win.cx, 2 * win.cy, 2 * vp.cx, vp.cy);
 413     test_SetViewportExt(hdc, -2 * vp.cx, -4 * vp.cy, -2 * vp.cx, -vp.cy);
 414     test_SetViewportExt(hdc, -2 * vp.cx, -1 * vp.cy, -2 * vp.cx, -vp.cy);
 415     test_SetWindowExt(hdc, -4 * win.cx, -2 * win.cy, -2 * vp.cx, -vp.cy);
 416     test_SetWindowExt(hdc, 4 * win.cx, -4 * win.cy, -vp.cx, -vp.cy);
 417
 418     ReleaseDC(0, hdc);
 419 }
 420
 421 static void test_setvirtualresolution(void)
 422 {
 423     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 424     DWORD r;
 425     INT horz_res = GetDeviceCaps(hdc, HORZRES);
 426     INT horz_size = GetDeviceCaps(hdc, HORZSIZE);
 427     INT log_pixels_x = GetDeviceCaps(hdc, LOGPIXELSX);
 428     SIZE orig_lometric_vp, orig_lometric_wnd;
 429
 430     if(!pSetVirtualResolution)
 431     {
 432         win_skip("Don't have SetVirtualResolution\n");
 433         return;
 434     }
 435
 436     /* Get the true resolution limits */
 437     SetMapMode(hdc, MM_LOMETRIC);
 438     GetViewportExtEx(hdc, &orig_lometric_vp);
 439     GetWindowExtEx(hdc, &orig_lometric_wnd);
 440     SetMapMode(hdc, MM_TEXT);
 441
 442     r = pSetVirtualResolution(hdc, 4000, 1000, 400, 200); /* 10 pix/mm x 5 pix/mm */
 443     ok(r == TRUE, "got %d\n", r);
 444     expect_LPtoDP(hdc, 1000, 1000);
 445     expect_viewport_ext(hdc, 1, 1);
 446     expect_window_ext(hdc, 1, 1);
 447
 448     SetMapMode(hdc, MM_LOMETRIC);
 449     expect_LPtoDP(hdc, 1000, -500);
 450     expect_viewport_ext(hdc, 4000, -1000);
 451     expect_window_ext(hdc, 4000, 2000);
 452
 453     /* Doesn't change the device caps */
 454     ok(horz_res == GetDeviceCaps(hdc, HORZRES), "horz_res changed\n");
 455     ok(horz_size == GetDeviceCaps(hdc, HORZSIZE), "horz_size changed\n");
 456     ok(log_pixels_x == GetDeviceCaps(hdc, LOGPIXELSX), "log_pixels_x changed\n");
 457
 458     r = pSetVirtualResolution(hdc, 8000, 1000, 400, 200); /* 20 pix/mm x 5 pix/mm */
 459     ok(r == TRUE, "got %d\n", r);
 460     expect_LPtoDP(hdc, 1000, -500); /* No change, need to re-set the mapping mode */
 461     SetMapMode(hdc, MM_TEXT);
 462     SetMapMode(hdc, MM_LOMETRIC);
 463     expect_LPtoDP(hdc, 2000, -500);
 464     expect_viewport_ext(hdc, 8000, -1000);
 465     expect_window_ext(hdc, 4000, 2000);
 466
 467     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 468     ok(r == TRUE, "got %d\n", r);
 469     SetMapMode(hdc, MM_TEXT);
 470     SetMapMode(hdc, MM_LOMETRIC);
 471     expect_LPtoDP(hdc, 4000, -500);
 472     expect_viewport_ext(hdc, 8000, -1000);
 473     expect_window_ext(hdc, 2000, 2000);
 474
 475     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 476     ok(r == TRUE, "got %d\n", r);
 477     SetMapMode(hdc, MM_TEXT);
 478     SetMapMode(hdc, MM_LOMETRIC);
 479     expect_LPtoDP(hdc, 4000, -500);
 480     expect_viewport_ext(hdc, 8000, -1000);
 481     expect_window_ext(hdc, 2000, 2000);
 482
 483     r = pSetVirtualResolution(hdc, 8000, 2000, 200, 200); /* 40 pix/mm x 10 pix/mm */
 484     ok(r == TRUE, "got %d\n", r);
 485     SetMapMode(hdc, MM_TEXT);
 486     SetMapMode(hdc, MM_LOMETRIC);
 487     expect_LPtoDP(hdc, 4000, -1000);
 488     expect_viewport_ext(hdc, 8000, -2000);
 489     expect_window_ext(hdc, 2000, 2000);
 490
 491     r = pSetVirtualResolution(hdc, 0, 0, 10, 0); /* Error */
 492     ok(r == FALSE, "got %d\n", r);
 493     SetMapMode(hdc, MM_TEXT);
 494     SetMapMode(hdc, MM_LOMETRIC);
 495     expect_LPtoDP(hdc, 4000, -1000);
 496     expect_viewport_ext(hdc, 8000, -2000);
 497     expect_window_ext(hdc, 2000, 2000);
 498
 499     r = pSetVirtualResolution(hdc, 0, 0, 0, 0); /* Reset to true resolution */
 500     ok(r == TRUE, "got %d\n", r);
 501     SetMapMode(hdc, MM_TEXT);
 502     SetMapMode(hdc, MM_LOMETRIC);
 503     expect_viewport_ext(hdc, orig_lometric_vp.cx, orig_lometric_vp.cy);
 504     expect_window_ext(hdc, orig_lometric_wnd.cx, orig_lometric_wnd.cy);
 505
 506     DeleteDC(hdc);
 507 }
 508
 509
 510 static inline void expect_identity(int line, XFORM *xf)
 511 {
 512     ok(xf->eM11 == 1.0, "%d: got %f\n", line, xf->eM11);
 513     ok(xf->eM12 == 0.0, "%d: got %f\n", line, xf->eM12);
 514     ok(xf->eM21 == 0.0, "%d: got %f\n", line, xf->eM21);
 515     ok(xf->eM22 == 1.0, "%d: got %f\n", line, xf->eM22);
 516     ok(xf->eDx == 0.0, "%d: got %f\n", line, xf->eDx);
 517     ok(xf->eDy == 0.0, "%d: got %f\n", line, xf->eDy);
 518 }
 519
 520 static inline void xform_near_match(int line, XFORM *got, XFORM *expect)
 521 {
 522     ok(fabs(got->eM11 - expect->eM11) < 0.001, "%d: got %f expect %f\n", line, got->eM11, expect->eM11);
 523     ok(fabs(got->eM12 - expect->eM12) < 0.001, "%d: got %f expect %f\n", line, got->eM12, expect->eM12);
 524     ok(fabs(got->eM21 - expect->eM21) < 0.001, "%d: got %f expect %f\n", line, got->eM21, expect->eM21);
 525     ok(fabs(got->eM22 - expect->eM22) < 0.001, "%d: got %f expect %f\n", line, got->eM22, expect->eM22);
 526     ok(fabs(got->eDx - expect->eDx) < 0.001, "%d: got %f expect %f\n", line, got->eDx, expect->eDx);
 527     ok(fabs(got->eDy - expect->eDy) < 0.001, "%d: got %f expect %f\n", line, got->eDy, expect->eDy);
 528 }
 529
 530
 531 static void test_gettransform(void)
 532 {
 533     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 534     XFORM xform, expect;
 535     BOOL r;
 536     SIZE lometric_vp, lometric_wnd;
 537
 538     if(!pGetTransform)
 539     {
 540         win_skip("Don't have GetTransform\n");
 541         return;
 542     }
 543
 544     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 545     ok(r == TRUE, "got %d\n", r);
 546     expect_identity(__LINE__, &xform);
 547     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 548     ok(r == TRUE, "got %d\n", r);
 549     expect_identity(__LINE__, &xform);
 550     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 551     ok(r == TRUE, "got %d\n", r);
 552     expect_identity(__LINE__, &xform);
 553     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 554     ok(r == TRUE, "got %d\n", r);
 555     expect_identity(__LINE__, &xform);
 556
 557     SetMapMode(hdc, MM_LOMETRIC);
 558     GetViewportExtEx(hdc, &lometric_vp);
 559     GetWindowExtEx(hdc, &lometric_wnd);
 560
 561     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 562     ok(r == TRUE, "got %d\n", r);
 563     expect_identity(__LINE__, &xform);
 564
 565     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 566     ok(r == TRUE, "got %d\n", r);
 567     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 568     expect.eM12 = expect.eM21 = 0.0;
 569     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 570     expect.eDx = expect.eDy = 0.0;
 571     xform_near_match(__LINE__, &xform, &expect);
 572
 573     r = pGetTransform(hdc, 0x204, &xform);  /* World -> Device */
 574     ok(r == TRUE, "got %d\n", r);
 575     xform_near_match(__LINE__, &xform, &expect);
 576
 577     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 578     ok(r == TRUE, "got %d\n", r);
 579     expect.eM11 = (FLOAT) lometric_wnd.cx / lometric_vp.cx;
 580     expect.eM22 = (FLOAT) lometric_wnd.cy / lometric_vp.cy;
 581     xform_near_match(__LINE__, &xform, &expect);
 582
 583
 584     SetGraphicsMode(hdc, GM_ADVANCED);
 585
 586     expect.eM11 = 10.0;
 587     expect.eM22 = 20.0;
 588     SetWorldTransform(hdc, &expect);
 589     r = pGetTransform(hdc, 0x203, &xform);  /* World -> Page */
 590     ok(r == TRUE, "got %d\n", r);
 591     xform_near_match(__LINE__, &xform, &expect);
 592
 593     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 594     ok(r == TRUE, "got %d\n", r);
 595     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 596     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 597     xform_near_match(__LINE__, &xform, &expect);
 598
 599     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 600     ok(r == TRUE, "got %d\n", r);
 601     expect.eM11 *= 10.0;
 602     expect.eM22 *= 20.0;
 603     xform_near_match(__LINE__, &xform, &expect);
 604
 605     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 606     ok(r == TRUE, "got %d\n", r);
 607     expect.eM11 = 1 / expect.eM11;
 608     expect.eM22 = 1 / expect.eM22;
 609     xform_near_match(__LINE__, &xform, &expect);
 610
 611     r = pGetTransform(hdc, 0x102, &xform);
 612     ok(r == FALSE, "got %d\n", r);
 613     r = pGetTransform(hdc, 0x103, &xform);
 614     ok(r == FALSE, "got %d\n", r);
 615     r = pGetTransform(hdc, 0x104, &xform);
 616     ok(r == FALSE, "got %d\n", r);
 617     r = pGetTransform(hdc, 0x202, &xform);
 618     ok(r == FALSE, "got %d\n", r);
 619     r = pGetTransform(hdc, 0x302, &xform);
 620     ok(r == FALSE, "got %d\n", r);
 621     r = pGetTransform(hdc, 0x303, &xform);
 622     ok(r == FALSE, "got %d\n", r);
 623     r = pGetTransform(hdc, 0x403, &xform);
 624     ok(r == FALSE, "got %d\n", r);
 625     r = pGetTransform(hdc, 0x404, &xform);
 626     ok(r == FALSE, "got %d\n", r);
 627     r = pGetTransform(hdc, 0xffff, &xform);
 628     ok(r == FALSE, "got %d\n", r);
 629 }
 630
 631 START_TEST(mapping)
 632 {
 633     HMODULE mod = GetModuleHandleA("gdi32.dll");
 634     pGetLayout = (void *)GetProcAddress( mod, "GetLayout" );
 635     pSetLayout = (void *)GetProcAddress( mod, "SetLayout" );
 636     pGetTransform = (void *)GetProcAddress( mod, "GetTransform" );
 637     pSetVirtualResolution = (void *)GetProcAddress( mod, "SetVirtualResolution" );
 638
 639     test_modify_world_transform();
 640     test_world_transform();
 641     test_dc_layout();
 642     test_isotropic_mapping();
 643     test_setvirtualresolution();
 644     test_gettransform();
 645 }