rostests/winetests/gdi32/mapping.c

   1 /*
   2  * Unit tests for mapping functions
   3  *
   4  * Copyright (c) 2005 Huw Davies
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <assert.h>
  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
  32 static void test_modify_world_transform(void)
  33 {
  34     HDC hdc = GetDC(0);
  35     int ret;
  36
  37     ret = SetGraphicsMode(hdc, GM_ADVANCED);
  38     if(!ret) /* running in win9x so quit */
  39     {
  40         ReleaseDC(0, hdc);
  41         return;
  42     }
  43
  44     ret = ModifyWorldTransform(hdc, NULL, MWT_IDENTITY);
  45     ok(ret, "ret = %d\n", ret);
  46
  47     ret = ModifyWorldTransform(hdc, NULL, MWT_LEFTMULTIPLY);
  48     ok(!ret, "ret = %d\n", ret);
  49
  50     ret = ModifyWorldTransform(hdc, NULL, MWT_RIGHTMULTIPLY);
  51     ok(!ret, "ret = %d\n", ret);
  52
  53     ReleaseDC(0, hdc);
  54 }
  55
  56 #define rough_match(got, expected) ((got >= expected - 2) && (got <= expected + 2))
  57
  58 static void test_SetWindowExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
  59 {
  60     SIZE windowExt, viewportExt;
  61     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
  62
  63     GetWindowOrgEx(hdc, &windowOrg);
  64     GetViewportOrgEx(hdc, &viewportOrg);
  65
  66     SetWindowExtEx(hdc, cx, cy, NULL);
  67     GetWindowExtEx(hdc, &windowExt);
  68     ok(windowExt.cx == cx && windowExt.cy == cy,
  69        "Window extension: Expected %dx%d, got %dx%d\n",
  70        cx, cy, windowExt.cx, windowExt.cy);
  71
  72     GetViewportExtEx(hdc, &viewportExt);
  73     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
  74         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
  75         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
  76
  77     GetWindowOrgEx(hdc, &windowOrgAfter);
  78     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
  79         "Window origin changed from (%d,%d) to (%d,%d)\n",
  80         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
  81
  82     GetViewportOrgEx(hdc, &viewportOrgAfter);
  83     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
  84         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
  85         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
  86 }
  87
  88 static void test_SetViewportExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
  89 {
  90     SIZE windowExt, windowExtAfter, viewportExt;
  91     POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
  92
  93     GetWindowOrgEx(hdc, &windowOrg);
  94     GetViewportOrgEx(hdc, &viewportOrg);
  95     GetWindowExtEx(hdc, &windowExt);
  96
  97     SetViewportExtEx(hdc, cx, cy, NULL);
  98     GetViewportExtEx(hdc, &viewportExt);
  99     ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
 100         "Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
 101         expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
 102
 103     GetWindowExtEx(hdc, &windowExtAfter);
 104     ok(windowExt.cx == windowExtAfter.cx && windowExt.cy == windowExtAfter.cy,
 105        "Window extension changed from %dx%d to %dx%d\n",
 106        windowExt.cx, windowExt.cy, windowExtAfter.cx, windowExtAfter.cy);
 107
 108     GetWindowOrgEx(hdc, &windowOrgAfter);
 109     ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
 110         "Window origin changed from (%d,%d) to (%d,%d)\n",
 111         windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
 112
 113     GetViewportOrgEx(hdc, &viewportOrgAfter);
 114     ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
 115         "Viewport origin changed from (%d,%d) to (%d,%d)\n",
 116         viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
 117 }
 118
 119 static void test_isotropic_mapping(void)
 120 {
 121     SIZE win, vp;
 122     HDC hdc = GetDC(0);
 123
 124     SetMapMode(hdc, MM_ISOTROPIC);
 125
 126     /* MM_ISOTROPIC is set up like MM_LOMETRIC.
 127        Initial values after SetMapMode():
 128        (1 inch = 25.4 mm)
 129
 130                        Windows 9x:               Windows NT:
 131        Window Ext:     254 x -254                HORZSIZE*10 x VERTSIZE*10
 132        Viewport Ext:   LOGPIXELSX x LOGPIXELSY   HORZRES x -VERTRES
 133
 134        To test without rounding errors, we have to use multiples of
 135        these values!
 136      */
 137
 138     GetWindowExtEx(hdc, &win);
 139     GetViewportExtEx(hdc, &vp);
 140
 141     test_SetViewportExt(hdc, 10 * vp.cx, 10 * vp.cy, 10 * vp.cx, 10 * vp.cy);
 142     test_SetWindowExt(hdc, win.cx, win.cy, 10 * vp.cx, 10 * vp.cy);
 143     test_SetWindowExt(hdc, 2 * win.cx, win.cy, 10 * vp.cx, 5 * vp.cy);
 144     test_SetWindowExt(hdc, win.cx, win.cy, 5 * vp.cx, 5 * vp.cy);
 145     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 146     test_SetViewportExt(hdc, vp.cx, 2 * vp.cy, vp.cx, vp.cy);
 147     test_SetViewportExt(hdc, 2 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 148     test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
 149     test_SetWindowExt(hdc, 4 * win.cx, 2 * win.cy, 2 * vp.cx, vp.cy);
 150     test_SetViewportExt(hdc, -2 * vp.cx, -4 * vp.cy, -2 * vp.cx, -vp.cy);
 151     test_SetViewportExt(hdc, -2 * vp.cx, -1 * vp.cy, -2 * vp.cx, -vp.cy);
 152     test_SetWindowExt(hdc, -4 * win.cx, -2 * win.cy, -2 * vp.cx, -vp.cy);
 153     test_SetWindowExt(hdc, 4 * win.cx, -4 * win.cy, -vp.cx, -vp.cy);
 154
 155     ReleaseDC(0, hdc);
 156 }
 157
 158 START_TEST(mapping)
 159 {
 160     test_modify_world_transform();
 161     test_isotropic_mapping();
 162 }