dlls/gdi32/tests/mapping.c

   1 /*
   2  * Unit tests for mapping functions
   3  *
   4  * Copyright (c) 2005 Huw Davies
   5  * Copyright (c) 2008 Dmitry  Timoshkov
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include <stdio.h>
  23 #include <math.h>
  24
  25 #include "wine/test.h"
  26 #include "winbase.h"
  27 #include "wingdi.h"
  28 #include "winuser.h"
  29 #include "winerror.h"
  30
  31 static DWORD (WINAPI *pGetLayout)(HDC hdc);
  32 static INT (WINAPI *pGetRandomRgn)(HDC hDC, HRGN hRgn, INT iCode);
  33 static BOOL (WINAPI *pGetTransform)(HDC, DWORD, XFORM *);
  34 static BOOL (WINAPI *pSetVirtualResolution)(HDC, DWORD, DWORD, DWORD, DWORD);
  35
  36 #define rough_match(got, expected) (abs( MulDiv( (got) - (expected), 1000, (expected) )) <= 5)
  37
  38 #define expect_LPtoDP(_hdc, _x, _y) \
  39 { \
  40     POINT _pt = { 1000, 1000 }; \
  41     LPtoDP(_hdc, &_pt, 1); \
  42     ok(rough_match(_pt.x, _x), "expected x %d, got %d\n", (_x), _pt.x); \
  43     ok(rough_match(_pt.y, _y), "expected y %d, got %d\n", (_y), _pt.y); \
  44 }
  45
  46 #define expect_world_transform(_hdc, _em11, _em22) \
  47 { \
  48     BOOL _ret; \
  49     XFORM _xform; \
  50     SetLastError(0xdeadbeef); \
  51     _ret = GetWorldTransform(_hdc, &_xform); \
  52     if (GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) \
  53     { \
  54         ok(_ret, "GetWorldTransform error %u\n", GetLastError()); \
  55         ok(_xform.eM11 == (_em11), "expected %f, got %f\n", (_em11), _xform.eM11); \
  56         ok(_xform.eM12 == 0.0, "expected 0.0, got %f\n", _xform.eM12); \
  57         ok(_xform.eM21 == 0.0, "expected 0.0, got %f\n", _xform.eM21); \
  58         ok(_xform.eM22 == (_em22), "expected %f, got %f\n", (_em22), _xform.eM22); \
  59         ok(_xform.eDx == 0.0, "expected 0.0, got %f\n", _xform.eDx); \
  60         ok(_xform.eDy == 0.0, "expected 0.0, got %f\n", _xform.eDy); \
  61     } \
  62 }
  63
  64 #define expect_dc_ext(_func, _hdc, _cx, _cy) \
  65 { \
  66     BOOL _ret; \
  67     SIZE _size; \
  68     SetLastError(0xdeadbeef); \
  69     _ret = _func(_hdc, &_size); \
  70     ok(_ret, #_func " error %u\n", GetLastError()); \
  71     ok(_size.cx == (_cx), "expected cx %d, got %d\n", (_cx), _size.cx); \
  72     ok(_size.cy == (_cy), "expected cy %d, got %d\n", (_cy), _size.cy); \
  73 }
  74
  75 #define expect_viewport_ext(_hdc, _cx, _cy) expect_dc_ext(GetViewportExtEx, _hdc, _cx, _cy)
  76 #define expect_window_ext(_hdc, _cx, _cy)  expect_dc_ext(GetWindowExtEx, _hdc, _cx, _cy)
  77
  78 static void test_world_transform(void)
  79 {
  80     HDC hdc;
  81     INT ret, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
  82     XFORM xform;
  83     SIZE size;
  84
  85     hdc = CreateCompatibleDC(0);
  86
  87     xform.eM11 = 1.0f;
  88     xform.eM12 = 0.0f;
  89     xform.eM21 = 0.0f;
  90     xform.eM22 = 1.0f;
  91     xform.eDx = 0.0f;
  92     xform.eDy = 0.0f;
  93     ret = SetWorldTransform(hdc, &xform);
  94     ok(!ret, "SetWorldTransform should fail in GM_COMPATIBLE mode\n");
  95
  96     size_cx = GetDeviceCaps(hdc, HORZSIZE);
  97     size_cy = GetDeviceCaps(hdc, VERTSIZE);
  98     res_x = GetDeviceCaps(hdc, HORZRES);
  99     res_y = GetDeviceCaps(hdc, VERTRES);
 100     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
 101     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
 102     trace("dc size %d x %d, resolution %d x %d dpi %d x %d\n",
 103           size_cx, size_cy, res_x, res_y, dpi_x, dpi_y );
 104
 105     expect_viewport_ext(hdc, 1, 1);
 106     expect_window_ext(hdc, 1, 1);
 107     expect_world_transform(hdc, 1.0, 1.0);
 108     expect_LPtoDP(hdc, 1000, 1000);
 109
 110     SetLastError(0xdeadbeef);
 111     ret = SetMapMode(hdc, MM_LOMETRIC);
 112     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 113
 114     expect_viewport_ext(hdc, res_x, -res_y);
 115     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 116     ok( rough_match( size.cx, size_cx * 10 ) ||
 117         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 118         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 119     ok( rough_match( size.cy, size_cy * 10 ) ||
 120         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 121         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 122     expect_world_transform(hdc, 1.0, 1.0);
 123     expect_LPtoDP(hdc, MulDiv(1000 / 10, res_x, size_cx), -MulDiv(1000 / 10, res_y, size_cy));
 124
 125     SetLastError(0xdeadbeef);
 126     ret = SetMapMode(hdc, MM_TEXT);
 127     ok(ret == MM_LOMETRIC, "expected MM_LOMETRIC, got %d\n", ret);
 128
 129     expect_viewport_ext(hdc, 1, 1);
 130     expect_window_ext(hdc, 1, 1);
 131     expect_world_transform(hdc, 1.0, 1.0);
 132     expect_LPtoDP(hdc, 1000, 1000);
 133
 134     ret = SetGraphicsMode(hdc, GM_ADVANCED);
 135     if (!ret)
 136     {
 137         DeleteDC(hdc);
 138         skip("GM_ADVANCED is not supported on this platform\n");
 139         return;
 140     }
 141
 142     expect_viewport_ext(hdc, 1, 1);
 143     expect_window_ext(hdc, 1, 1);
 144     expect_world_transform(hdc, 1.0, 1.0);
 145     expect_LPtoDP(hdc, 1000, 1000);
 146
 147     /* The transform must conform to (eM11 * eM22 != eM12 * eM21) requirement */
 148     xform.eM11 = 1.0f;
 149     xform.eM12 = 2.0f;
 150     xform.eM21 = 1.0f;
 151     xform.eM22 = 2.0f;
 152     xform.eDx = 0.0f;
 153     xform.eDy = 0.0f;
 154     ret = SetWorldTransform(hdc, &xform);
 155     ok(!ret ||
 156        broken(ret), /* NT4 */
 157        "SetWorldTransform should fail with an invalid xform\n");
 158
 159     xform.eM11 = 20.0f;
 160     xform.eM12 = 0.0f;
 161     xform.eM21 = 0.0f;
 162     xform.eM22 = 20.0f;
 163     xform.eDx = 0.0f;
 164     xform.eDy = 0.0f;
 165     SetLastError(0xdeadbeef);
 166     ret = SetWorldTransform(hdc, &xform);
 167     ok(ret, "SetWorldTransform error %u\n", GetLastError());
 168
 169     expect_viewport_ext(hdc, 1, 1);
 170     expect_window_ext(hdc, 1, 1);
 171     expect_world_transform(hdc, 20.0, 20.0);
 172     expect_LPtoDP(hdc, 20000, 20000);
 173
 174     SetLastError(0xdeadbeef);
 175     ret = SetMapMode(hdc, MM_LOMETRIC);
 176     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 177
 178     expect_viewport_ext(hdc, res_x, -res_y);
 179     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 180     ok( rough_match( size.cx, size_cx * 10 ) ||
 181         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 182         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 183     ok( rough_match( size.cy, size_cy * 10 ) ||
 184         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 185         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 186     expect_world_transform(hdc, 20.0, 20.0);
 187     expect_LPtoDP(hdc, MulDiv(20000, res_x, size.cx), -MulDiv(20000, res_y, size.cy));
 188
 189     SetLastError(0xdeadbeef);
 190     ret = SetMapMode(hdc, MM_TEXT);
 191     ok(ret == MM_LOMETRIC, "expected MM_LOMETRIC, got %d\n", ret);
 192
 193     expect_viewport_ext(hdc, 1, 1);
 194     expect_window_ext(hdc, 1, 1);
 195     expect_world_transform(hdc, 20.0, 20.0);
 196     expect_LPtoDP(hdc, 20000, 20000);
 197
 198     size.cx = 0xdeadbeef;
 199     size.cy = 0xdeadbeef;
 200     ret = SetViewportExtEx(hdc, -1, -1, &size);
 201     ok(ret, "SetViewportExtEx(-1, -1) failed\n");
 202     ok(size.cx == 1 && size.cy == 1, "expected 1,1 got %d,%d\n", size.cx, size.cy);
 203     expect_viewport_ext(hdc, 1, 1);
 204     expect_window_ext(hdc, 1, 1);
 205     expect_world_transform(hdc, 20.0, 20.0);
 206     expect_LPtoDP(hdc, 20000, 20000);
 207
 208     ret = SetMapMode(hdc, MM_ANISOTROPIC);
 209     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 210
 211     expect_viewport_ext(hdc, 1, 1);
 212     expect_window_ext(hdc, 1, 1);
 213     expect_world_transform(hdc, 20.0, 20.0);
 214     expect_LPtoDP(hdc, 20000, 20000);
 215
 216     size.cx = 0xdeadbeef;
 217     size.cy = 0xdeadbeef;
 218     ret = SetViewportExtEx(hdc, -1, -1, &size);
 219     ok(ret, "SetViewportExtEx(-1, -1) failed\n");
 220     ok(size.cx == 1 && size.cy == 1, "expected 1,1 got %d,%d\n", size.cx, size.cy);
 221     expect_viewport_ext(hdc, -1, -1);
 222     expect_window_ext(hdc, 1, 1);
 223     expect_world_transform(hdc, 20.0, 20.0);
 224     expect_LPtoDP(hdc, -20000, -20000);
 225
 226     ret = SetGraphicsMode(hdc, GM_COMPATIBLE);
 227     ok(ret, "SetGraphicsMode(GM_COMPATIBLE) should not fail if DC has't an identity transform\n");
 228     ret = GetGraphicsMode(hdc);
 229     ok(ret == GM_COMPATIBLE, "expected GM_COMPATIBLE, got %d\n", ret);
 230
 231     expect_viewport_ext(hdc, -1, -1);
 232     expect_window_ext(hdc, 1, 1);
 233     expect_world_transform(hdc, 20.0, 20.0);
 234     expect_LPtoDP(hdc, -20000, -20000);
 235
 236     DeleteDC(hdc);
 237 }
 238
 239 static void test_dc_layout(void)
 240 {
 241     INT ret, size_cx, size_cy, res_x, res_y, dpi_x, dpi_y;
 242     SIZE size;
 243     POINT pt;
 244     HBITMAP bitmap;
 245     RECT rc, ret_rc;
 246     HDC hdc;
 247     HRGN hrgn;
 248
 249     if (!pGetLayout)
 250     {
 251         win_skip( "Don't have GetLayout\n" );
 252         return;
 253     }
 254
 255     hdc = CreateCompatibleDC(0);
 256     bitmap = CreateCompatibleBitmap( hdc, 100, 100 );
 257     SelectObject( hdc, bitmap );
 258
 259     size_cx = GetDeviceCaps(hdc, HORZSIZE);
 260     size_cy = GetDeviceCaps(hdc, VERTSIZE);
 261     res_x = GetDeviceCaps(hdc, HORZRES);
 262     res_y = GetDeviceCaps(hdc, VERTRES);
 263     dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
 264     dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
 265
 266     ret = GetMapMode( hdc );
 267     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 268     expect_viewport_ext(hdc, 1, 1);
 269     expect_window_ext(hdc, 1, 1);
 270     expect_world_transform(hdc, 1.0, 1.0);
 271     expect_LPtoDP(hdc, 1000, 1000);
 272
 273     SetLayout( hdc, LAYOUT_RTL );
 274     if (!pGetLayout( hdc ))
 275     {
 276         win_skip( "SetLayout not supported\n" );
 277         DeleteDC(hdc);
 278         return;
 279     }
 280
 281     ret = GetMapMode( hdc );
 282     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 283     ret = pGetLayout( hdc );
 284     ok(ret == LAYOUT_RTL, "got %x\n", ret);
 285     expect_viewport_ext(hdc, 1, 1);
 286     expect_window_ext(hdc, 1, 1);
 287     expect_world_transform(hdc, 1.0, 1.0);
 288     expect_LPtoDP(hdc, -1000 + 99, 1000);
 289     GetViewportOrgEx( hdc, &pt );
 290     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 291     GetWindowOrgEx( hdc, &pt );
 292     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 293     GetDCOrgEx( hdc, &pt );
 294     ok( pt.x == 0 && pt.y == 0, "wrong origin %d,%d\n", pt.x, pt.y );
 295     if (pGetTransform)
 296     {
 297         XFORM xform;
 298         BOOL ret = pGetTransform( hdc, 0x204, &xform ); /* World -> Device */
 299         ok( ret, "got %d\n", ret );
 300         ok( xform.eM11 == -1.0, "got %f\n", xform.eM11 );
 301         ok( xform.eM12 == 0.0, "got %f\n", xform.eM12 );
 302         ok( xform.eM21 == 0.0, "got %f\n", xform.eM21 );
 303         ok( xform.eM22 == 1.0, "got %f\n", xform.eM22 );
 304         ok( xform.eDx == 99.0, "got %f\n", xform.eDx );
 305         ok( xform.eDy == 0.0, "got %f\n", xform.eDy );
 306     }
 307
 308     SetRect( &rc, 10, 10, 20, 20 );
 309     IntersectClipRect( hdc, 10, 10, 20, 20 );
 310     hrgn = CreateRectRgn( 0, 0, 0, 0 );
 311     GetClipRgn( hdc, hrgn );
 312     GetRgnBox( hrgn, &ret_rc );
 313     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 314     SetLayout( hdc, LAYOUT_LTR );
 315     SetRect( &rc, 80, 10, 90, 20 );
 316     GetClipRgn( hdc, hrgn );
 317     GetRgnBox( hrgn, &ret_rc );
 318     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 319     GetClipBox( hdc, &ret_rc );
 320     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 321     IntersectClipRect( hdc, 80, 10, 85, 20 );
 322     SetLayout( hdc, LAYOUT_RTL );
 323     SetRect( &rc, 15, 10, 20, 20 );
 324     GetClipRgn( hdc, hrgn );
 325     GetRgnBox( hrgn, &ret_rc );
 326     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 327     GetClipBox( hdc, &ret_rc );
 328     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 329     SetRectRgn( hrgn, 60, 10, 80, 20 );
 330     SetLayout( hdc, LAYOUT_LTR );
 331     ExtSelectClipRgn( hdc, hrgn, RGN_OR );
 332     SetLayout( hdc, LAYOUT_RTL );
 333     SetRect( &rc, 15, 10, 40, 20 );
 334     GetClipRgn( hdc, hrgn );
 335     GetRgnBox( hrgn, &ret_rc );
 336     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 337     GetClipBox( hdc, &ret_rc );
 338     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 339
 340     /* OffsetClipRgn mirrors too */
 341     OffsetClipRgn( hdc, 5, 5 );
 342     OffsetRect( &rc, 5, 5 );
 343     GetClipRgn( hdc, hrgn );
 344     GetRgnBox( hrgn, &ret_rc );
 345     ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 346
 347     /* GetRandomRgn returns the raw region */
 348     if (pGetRandomRgn)
 349     {
 350         SetRect( &rc, 55, 15, 80, 25 );
 351         pGetRandomRgn( hdc, hrgn, 1 );
 352         GetRgnBox( hrgn, &ret_rc );
 353         ok( EqualRect( &rc, &ret_rc ), "wrong clip box %s\n", wine_dbgstr_rect( &ret_rc ));
 354     }
 355
 356     SetMapMode(hdc, MM_LOMETRIC);
 357     ret = GetMapMode( hdc );
 358     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 359
 360     expect_viewport_ext(hdc, res_x, -res_y);
 361     ok( GetWindowExtEx( hdc, &size ), "GetWindowExtEx failed\n" );
 362     ok( rough_match( size.cx, size_cx * 10 ) ||
 363         rough_match( size.cx, MulDiv( res_x, 254, dpi_x )),  /* Vista uses a more precise method */
 364         "expected cx %d or %d, got %d\n", size_cx * 10, MulDiv( res_x, 254, dpi_x ), size.cx );
 365     ok( rough_match( size.cy, size_cy * 10 ) ||
 366         rough_match( size.cy, MulDiv( res_y, 254, dpi_y )),  /* Vista uses a more precise method */
 367         "expected cy %d or %d, got %d\n", size_cy * 10, MulDiv( res_y, 254, dpi_y ), size.cy );
 368     expect_world_transform(hdc, 1.0, 1.0);
 369     expect_LPtoDP(hdc, -MulDiv(1000 / 10, res_x, size_cx) + 99, -MulDiv(1000 / 10, res_y, size_cy));
 370
 371     SetMapMode(hdc, MM_TEXT);
 372     ret = GetMapMode( hdc );
 373     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 374     SetLayout( hdc, LAYOUT_LTR );
 375     ret = GetMapMode( hdc );
 376     ok(ret == MM_ANISOTROPIC, "expected MM_ANISOTROPIC, got %d\n", ret);
 377     SetMapMode(hdc, MM_TEXT);
 378     ret = GetMapMode( hdc );
 379     ok(ret == MM_TEXT, "expected MM_TEXT, got %d\n", ret);
 380
 381     DeleteDC(hdc);
 382     DeleteObject( bitmap );
 383 }
 384
 385 static void test_modify_world_transform(void)
 386 {
 387     HDC hdc = GetDC(0);
 388     int ret;
 389
 390     ret = SetGraphicsMode(hdc, GM_ADVANCED);
 391     ok(ret, "ret = %d\n", ret);
 392
 393     ret = ModifyWorldTransform(hdc, NULL, MWT_IDENTITY);
 394     ok(ret, "ret = %d\n", ret);
 395
 396     ret = ModifyWorldTransform(hdc, NULL, MWT_LEFTMULTIPLY);
 397     ok(!ret, "ret = %d\n", ret);
 398
 399     ret = ModifyWorldTransform(hdc, NULL, MWT_RIGHTMULTIPLY);
 400     ok(!ret, "ret = %d\n", ret);
 401
 402     ReleaseDC(0, hdc);
 403 }
 404
 405 static void test_SetWindowExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 406 {
 407     SIZE windowExt, viewportExt;
 408     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 409
 410     GetWindowOrgEx(hdc, &windowOrg);
 411     GetViewportOrgEx(hdc, &viewportOrg);
 412
 413     SetWindowExtEx(hdc, cx, cy, NULL);
 414     GetWindowExtEx(hdc, &windowExt);
 415     ok(windowExt.cx == cx && windowExt.cy == cy,
 416        "Window extension: Expected %dx%d, got %dx%d\n",
 417        cx, cy, windowExt.cx, windowExt.cy);
 418
 419     GetViewportExtEx(hdc, &viewportExt);
 420     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 421         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 422         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 423
 424     GetWindowOrgEx(hdc, &windowOrgAfter);
 425     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 426         "Window origin changed from (%d,%d) to (%d,%d)\n",
 427         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 428
 429     GetViewportOrgEx(hdc, &viewportOrgAfter);
 430     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 431         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
 432         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 433 }
 434
 435 static void test_SetViewportExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
 436 {
 437     SIZE windowExt, windowExtAfter, viewportExt;
 438     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
 439
 440     GetWindowOrgEx(hdc, &windowOrg);
 441     GetViewportOrgEx(hdc, &viewportOrg);
 442     GetWindowExtEx(hdc, &windowExt);
 443
 444     SetViewportExtEx(hdc, cx, cy, NULL);
 445     GetViewportExtEx(hdc, &viewportExt);
 446     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 447         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 448         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 449
 450     GetWindowExtEx(hdc, &windowExtAfter);
 451     ok(windowExt.cx == windowExtAfter.cx && windowExt.cy == windowExtAfter.cy,
 452        "Window extension changed from %dx%d to %dx%d\n",
 453        windowExt.cx, windowExt.cy, windowExtAfter.cx, windowExtAfter.cy);
 454
 455     GetWindowOrgEx(hdc, &windowOrgAfter);
 456     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 457         "Window origin changed from (%d,%d) to (%d,%d)\n",
 458         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 459
 460     GetViewportOrgEx(hdc, &viewportOrgAfter);
 461     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 462         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
 463         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 464 }
 465
 466 static void test_isotropic_mapping(void)
 467 {
 468     SIZE win, vp;
 469     HDC hdc = GetDC(0);
 470
 471     SetMapMode(hdc, MM_ISOTROPIC);
 472
 473     /* MM_ISOTROPIC is set up like MM_LOMETRIC.
 474        Initial values after SetMapMode():
 475        (1 inch = 25.4 mm)
 476
 477                        Windows 9x:               Windows NT:
 478        Window Ext:     254 x -254                HORZSIZE*10 x VERTSIZE*10
 479        Viewport Ext:   LOGPIXELSX x LOGPIXELSY   HORZRES x -VERTRES
 480
 481        To test without rounding errors, we have to use multiples of
 482        these values!
 483      */
 484
 485     GetWindowExtEx(hdc, &win);
 486     GetViewportExtEx(hdc, &vp);
 487
 488     test_SetViewportExt(hdc, 10 * vp.cx, 10 * vp.cy, 10 * vp.cx, 10 * vp.cy);
 489     test_SetWindowExt(hdc, win.cx, win.cy, 10 * vp.cx, 10 * vp.cy);
 490     test_SetWindowExt(hdc, 2 * win.cx, win.cy, 10 * vp.cx, 5 * vp.cy);
 491     test_SetWindowExt(hdc, win.cx, win.cy, 5 * vp.cx, 5 * vp.cy);
 492     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 493     test_SetViewportExt(hdc, vp.cx, 2 * vp.cy, vp.cx, vp.cy);
 494     test_SetViewportExt(hdc, 2 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 495     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 496     test_SetWindowExt(hdc, 4 * win.cx, 2 * win.cy, 2 * vp.cx, vp.cy);
 497     test_SetViewportExt(hdc, -2 * vp.cx, -4 * vp.cy, -2 * vp.cx, -vp.cy);
 498     test_SetViewportExt(hdc, -2 * vp.cx, -1 * vp.cy, -2 * vp.cx, -vp.cy);
 499     test_SetWindowExt(hdc, -4 * win.cx, -2 * win.cy, -2 * vp.cx, -vp.cy);
 500     test_SetWindowExt(hdc, 4 * win.cx, -4 * win.cy, -vp.cx, -vp.cy);
 501
 502     ReleaseDC(0, hdc);
 503 }
 504
 505 static void test_setvirtualresolution(void)
 506 {
 507     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 508     BOOL r;
 509     INT horz_res = GetDeviceCaps(hdc, HORZRES);
 510     INT horz_size = GetDeviceCaps(hdc, HORZSIZE);
 511     INT log_pixels_x = GetDeviceCaps(hdc, LOGPIXELSX);
 512     SIZE orig_lometric_vp, orig_lometric_wnd;
 513
 514     if(!pSetVirtualResolution)
 515     {
 516         win_skip("Don't have SetVirtualResolution\n");
 517         return;
 518     }
 519
 520     /* Get the true resolution limits */
 521     SetMapMode(hdc, MM_LOMETRIC);
 522     GetViewportExtEx(hdc, &orig_lometric_vp);
 523     GetWindowExtEx(hdc, &orig_lometric_wnd);
 524     SetMapMode(hdc, MM_TEXT);
 525
 526     r = pSetVirtualResolution(hdc, 4000, 1000, 400, 200); /* 10 pix/mm x 5 pix/mm */
 527     ok(r == TRUE, "got %d\n", r);
 528     expect_LPtoDP(hdc, 1000, 1000);
 529     expect_viewport_ext(hdc, 1, 1);
 530     expect_window_ext(hdc, 1, 1);
 531
 532     SetMapMode(hdc, MM_LOMETRIC);
 533     expect_LPtoDP(hdc, 1000, -500);
 534     expect_viewport_ext(hdc, 4000, -1000);
 535     expect_window_ext(hdc, 4000, 2000);
 536
 537     /* Doesn't change the device caps */
 538     ok(horz_res == GetDeviceCaps(hdc, HORZRES), "horz_res changed\n");
 539     ok(horz_size == GetDeviceCaps(hdc, HORZSIZE), "horz_size changed\n");
 540     ok(log_pixels_x == GetDeviceCaps(hdc, LOGPIXELSX), "log_pixels_x changed\n");
 541
 542     r = pSetVirtualResolution(hdc, 8000, 1000, 400, 200); /* 20 pix/mm x 5 pix/mm */
 543     ok(r == TRUE, "got %d\n", r);
 544     expect_LPtoDP(hdc, 1000, -500); /* No change, need to re-set the mapping mode */
 545     SetMapMode(hdc, MM_TEXT);
 546     SetMapMode(hdc, MM_LOMETRIC);
 547     expect_LPtoDP(hdc, 2000, -500);
 548     expect_viewport_ext(hdc, 8000, -1000);
 549     expect_window_ext(hdc, 4000, 2000);
 550
 551     r = pSetVirtualResolution(hdc, 8000, 1000, 200, 200); /* 40 pix/mm x 5 pix/mm */
 552     ok(r == TRUE, "got %d\n", r);
 553     SetMapMode(hdc, MM_TEXT);
 554     SetMapMode(hdc, MM_LOMETRIC);
 555     expect_LPtoDP(hdc, 4000, -500);
 556     expect_viewport_ext(hdc, 8000, -1000);
 557     expect_window_ext(hdc, 2000, 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, 2000, 200, 200); /* 40 pix/mm x 10 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, -1000);
 572     expect_viewport_ext(hdc, 8000, -2000);
 573     expect_window_ext(hdc, 2000, 2000);
 574
 575     r = pSetVirtualResolution(hdc, 0, 0, 10, 0); /* Error */
 576     ok(r == FALSE, "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, 0, 0); /* Reset to true resolution */
 584     ok(r == TRUE, "got %d\n", r);
 585     SetMapMode(hdc, MM_TEXT);
 586     SetMapMode(hdc, MM_LOMETRIC);
 587     expect_viewport_ext(hdc, orig_lometric_vp.cx, orig_lometric_vp.cy);
 588     expect_window_ext(hdc, orig_lometric_wnd.cx, orig_lometric_wnd.cy);
 589
 590     DeleteDC(hdc);
 591 }
 592
 593
 594 static inline void expect_identity(int line, XFORM *xf)
 595 {
 596     ok(xf->eM11 == 1.0, "%d: got %f\n", line, xf->eM11);
 597     ok(xf->eM12 == 0.0, "%d: got %f\n", line, xf->eM12);
 598     ok(xf->eM21 == 0.0, "%d: got %f\n", line, xf->eM21);
 599     ok(xf->eM22 == 1.0, "%d: got %f\n", line, xf->eM22);
 600     ok(xf->eDx == 0.0, "%d: got %f\n", line, xf->eDx);
 601     ok(xf->eDy == 0.0, "%d: got %f\n", line, xf->eDy);
 602 }
 603
 604 static inline void xform_near_match(int line, XFORM *got, XFORM *expect)
 605 {
 606     ok(fabs(got->eM11 - expect->eM11) < 0.001, "%d: got %f expect %f\n", line, got->eM11, expect->eM11);
 607     ok(fabs(got->eM12 - expect->eM12) < 0.001, "%d: got %f expect %f\n", line, got->eM12, expect->eM12);
 608     ok(fabs(got->eM21 - expect->eM21) < 0.001, "%d: got %f expect %f\n", line, got->eM21, expect->eM21);
 609     ok(fabs(got->eM22 - expect->eM22) < 0.001, "%d: got %f expect %f\n", line, got->eM22, expect->eM22);
 610     ok(fabs(got->eDx - expect->eDx) < 0.001, "%d: got %f expect %f\n", line, got->eDx, expect->eDx);
 611     ok(fabs(got->eDy - expect->eDy) < 0.001, "%d: got %f expect %f\n", line, got->eDy, expect->eDy);
 612 }
 613
 614
 615 static void test_gettransform(void)
 616 {
 617     HDC hdc = CreateICA("DISPLAY", NULL, NULL, NULL);
 618     XFORM xform, expect;
 619     BOOL r;
 620     SIZE lometric_vp, lometric_wnd;
 621
 622     if(!pGetTransform)
 623     {
 624         win_skip("Don't have GetTransform\n");
 625         return;
 626     }
 627
 628     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 629     ok(r == TRUE, "got %d\n", r);
 630     expect_identity(__LINE__, &xform);
 631     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 632     ok(r == TRUE, "got %d\n", r);
 633     expect_identity(__LINE__, &xform);
 634     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 635     ok(r == TRUE, "got %d\n", r);
 636     expect_identity(__LINE__, &xform);
 637     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 638     ok(r == TRUE, "got %d\n", r);
 639     expect_identity(__LINE__, &xform);
 640
 641     SetMapMode(hdc, MM_LOMETRIC);
 642     GetViewportExtEx(hdc, &lometric_vp);
 643     GetWindowExtEx(hdc, &lometric_wnd);
 644
 645     r = pGetTransform(hdc, 0x203, &xform); /* World -> Page */
 646     ok(r == TRUE, "got %d\n", r);
 647     expect_identity(__LINE__, &xform);
 648
 649     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 650     ok(r == TRUE, "got %d\n", r);
 651     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 652     expect.eM12 = expect.eM21 = 0.0;
 653     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 654     expect.eDx = expect.eDy = 0.0;
 655     xform_near_match(__LINE__, &xform, &expect);
 656
 657     r = pGetTransform(hdc, 0x204, &xform);  /* World -> Device */
 658     ok(r == TRUE, "got %d\n", r);
 659     xform_near_match(__LINE__, &xform, &expect);
 660
 661     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 662     ok(r == TRUE, "got %d\n", r);
 663     expect.eM11 = (FLOAT) lometric_wnd.cx / lometric_vp.cx;
 664     expect.eM22 = (FLOAT) lometric_wnd.cy / lometric_vp.cy;
 665     xform_near_match(__LINE__, &xform, &expect);
 666
 667
 668     SetGraphicsMode(hdc, GM_ADVANCED);
 669
 670     expect.eM11 = 10.0;
 671     expect.eM22 = 20.0;
 672     SetWorldTransform(hdc, &expect);
 673     r = pGetTransform(hdc, 0x203, &xform);  /* World -> Page */
 674     ok(r == TRUE, "got %d\n", r);
 675     xform_near_match(__LINE__, &xform, &expect);
 676
 677     r = pGetTransform(hdc, 0x304, &xform); /* Page -> Device */
 678     ok(r == TRUE, "got %d\n", r);
 679     expect.eM11 = (FLOAT) lometric_vp.cx / lometric_wnd.cx;
 680     expect.eM22 = (FLOAT) lometric_vp.cy / lometric_wnd.cy;
 681     xform_near_match(__LINE__, &xform, &expect);
 682
 683     r = pGetTransform(hdc, 0x204, &xform); /* World -> Device */
 684     ok(r == TRUE, "got %d\n", r);
 685     expect.eM11 *= 10.0;
 686     expect.eM22 *= 20.0;
 687     xform_near_match(__LINE__, &xform, &expect);
 688
 689     r = pGetTransform(hdc, 0x402, &xform); /* Device -> World */
 690     ok(r == TRUE, "got %d\n", r);
 691     expect.eM11 = 1 / expect.eM11;
 692     expect.eM22 = 1 / expect.eM22;
 693     xform_near_match(__LINE__, &xform, &expect);
 694
 695     r = pGetTransform(hdc, 0x102, &xform);
 696     ok(r == FALSE, "got %d\n", r);
 697     r = pGetTransform(hdc, 0x103, &xform);
 698     ok(r == FALSE, "got %d\n", r);
 699     r = pGetTransform(hdc, 0x104, &xform);
 700     ok(r == FALSE, "got %d\n", r);
 701     r = pGetTransform(hdc, 0x202, &xform);
 702     ok(r == FALSE, "got %d\n", r);
 703     r = pGetTransform(hdc, 0x302, &xform);
 704     ok(r == FALSE, "got %d\n", r);
 705     r = pGetTransform(hdc, 0x303, &xform);
 706     ok(r == FALSE, "got %d\n", r);
 707     r = pGetTransform(hdc, 0x403, &xform);
 708     ok(r == FALSE, "got %d\n", r);
 709     r = pGetTransform(hdc, 0x404, &xform);
 710     ok(r == FALSE, "got %d\n", r);
 711     r = pGetTransform(hdc, 0xffff, &xform);
 712     ok(r == FALSE, "got %d\n", r);
 713 }
 714
 715 START_TEST(mapping)
 716 {
 717     HMODULE mod = GetModuleHandleA("gdi32.dll");
 718     pGetLayout = (void *)GetProcAddress( mod, "GetLayout" );
 719     pGetRandomRgn = (void *)GetProcAddress( mod, "GetRandomRgn" );
 720     pGetTransform = (void *)GetProcAddress( mod, "GetTransform" );
 721     pSetVirtualResolution = (void *)GetProcAddress( mod, "SetVirtualResolution" );
 722
 723     test_modify_world_transform();
 724     test_world_transform();
 725     test_dc_layout();
 726     test_isotropic_mapping();
 727     test_setvirtualresolution();
 728     test_gettransform();
 729 }