rostests/apitests/gdi32/DPtoLP.c

   1 /*
   2  * PROJECT:         ReactOS api tests
   3  * LICENSE:         GPL - See COPYING in the top level directory
   4  * PURPOSE:         Test for ...
   5  * PROGRAMMERS:     Timo Kreuzer
   6  */
   7
   8 #include <apitest.h>
   9
  10 #include <wingdi.h>
  11 #include <winuser.h>
  12
  13 void Test_DPtoLP_Params()
  14 {
  15     HDC hdc;
  16     POINT apt[2];
  17
  18     apt[0].x = 0;
  19     apt[0].y = 0;
  20     apt[1].x = -1000;
  21     apt[1].y = 1000;
  22
  23     SetLastError(ERROR_SUCCESS);
  24     ok_int(DPtoLP(NULL, NULL, 0), 1);
  25     ok_err(ERROR_SUCCESS);
  26
  27     ok_int(DPtoLP(NULL, NULL, -1), 1);
  28     ok_err(ERROR_SUCCESS);
  29
  30     ok_int(DPtoLP(NULL, (PVOID)0x80000000, -1), 1);
  31     ok_err(ERROR_SUCCESS);
  32
  33     ok_int(DPtoLP(NULL, NULL, 2), 0);
  34     ok_err(ERROR_INVALID_PARAMETER);
  35
  36     SetLastError(ERROR_SUCCESS);
  37     ok_int(DPtoLP(NULL, apt, 2), 0);
  38     ok_err(ERROR_INVALID_PARAMETER);
  39
  40     SetLastError(ERROR_SUCCESS);
  41     ok_int(DPtoLP(NULL, apt, 0), 1);
  42     ok(GetLastError() == ERROR_SUCCESS, "Exected ERROR_SUCCESS, got %ld\n", GetLastError());
  43
  44     SetLastError(ERROR_SUCCESS);
  45     ok_int(DPtoLP(NULL, apt, -2), 1);
  46     ok_err(ERROR_SUCCESS);
  47
  48     SetLastError(ERROR_SUCCESS);
  49     ok_int(DPtoLP((HDC)-4, apt, -2), 1);
  50     ok_err(ERROR_SUCCESS);
  51
  52     hdc = GetDC(0);
  53     SetLastError(ERROR_SUCCESS);
  54     ok_int(DPtoLP(hdc, NULL, 2), 1);
  55     ok_err(ERROR_SUCCESS);
  56
  57     hdc = GetDC(0);
  58     SetLastError(ERROR_SUCCESS);
  59     ok_int(DPtoLP(hdc, (PVOID)0x80000000, 2), 1);
  60     ok_err(ERROR_SUCCESS);
  61
  62
  63     ReleaseDC(0, hdc);
  64 }
  65
  66 void Test_DPtoLP()
  67 {
  68     HDC hdc;
  69     POINT apt[2];
  70     XFORM xform;
  71     LONG lLogPixelsX, lLogPixelsY;
  72
  73     apt[0].x = 1;
  74     apt[0].y = 1;
  75     apt[1].x = -1000;
  76     apt[1].y = 1000;
  77
  78     hdc = GetDC(0);
  79     lLogPixelsX = GetDeviceCaps(hdc, LOGPIXELSX);
  80     lLogPixelsY = GetDeviceCaps(hdc, LOGPIXELSY);
  81
  82     SetMapMode(hdc, MM_TEXT);
  83     ok_int(DPtoLP(hdc, apt, 2), 1);
  84     ok_int(apt[0].x, 1);
  85     ok_int(apt[0].y, 1);
  86     ok_int(apt[1].x, -1000);
  87     ok_int(apt[1].y, 1000);
  88
  89     apt[0].x = 100; apt[0].y = 256; apt[1].x = -1000; apt[1].y = 1000;
  90     SetMapMode(hdc, MM_LOMETRIC);
  91     ok_int(DPtoLP(hdc, apt, 2), 1);
  92     ok_int(apt[0].x * lLogPixelsX, 33888 );
  93     ok_int(apt[0].y * lLogPixelsY, -86688 );
  94     ok_int(apt[1].x * lLogPixelsX, -338688 );
  95     ok_int(apt[1].y * lLogPixelsY, -338688 );
  96     SetGraphicsMode(hdc, GM_ADVANCED);
  97     SetMapMode(hdc, MM_ANISOTROPIC);
  98
  99     xform.eM11 = 1.;
 100     xform.eM12 = 0.;
 101     xform.eM21 = 0.;
 102     xform.eM22 = 1.;
 103     xform.eDx = (FLOAT)4294967167.999999761;
 104     xform.eDy = 1.;
 105     ok_int(SetWorldTransform(hdc, &xform), 1);
 106
 107     apt[0].x = 100; apt[0].y = 256; apt[1].x = -1000; apt[1].y = 1000;
 108     ok_int(DPtoLP(hdc, apt, 2), 1);
 109     ok_int(apt[0].x * lLogPixelsX, 58464 );
 110     ok_int(apt[0].y * lLogPixelsY, -86784 );
 111     ok_int(apt[1].x * lLogPixelsX, -314112 );
 112     ok_int(apt[1].y * lLogPixelsY, -338784 );
 113
 114     apt[0].x = 100; apt[0].y = 256; apt[1].x = -1000; apt[1].y = 1000;
 115     xform.eM11 = 10000000.;
 116     ok_int(SetWorldTransform(hdc, &xform), 1);
 117     ok_int(DPtoLP(hdc, apt, 2), 1);
 118     ok_int(apt[0].x * lLogPixelsX, -41184 );
 119     ok_int(apt[0].y * lLogPixelsY, -86784 );
 120     ok_int(apt[1].x * lLogPixelsX, -41184 );
 121     ok_int(apt[1].y * lLogPixelsY, -338784 );
 122
 123     apt[0].x = 100; apt[0].y = 256; apt[1].x = -1000; apt[1].y = 1000;
 124     xform.eM11 = 1.;
 125     xform.eDx = (FLOAT)4294967167.999999762; // this is too big
 126     ok_int(SetWorldTransform(hdc, &xform), 1);
 127     ok_int(DPtoLP(hdc, apt, 2), 0);
 128     ok_int(apt[0].x, 100 );
 129     ok_int(apt[0].y, 256 );
 130     ok_int(apt[1].x, -1000 );
 131     ok_int(apt[1].y, 1000 );
 132
 133     xform.eM11 = 2.;
 134     xform.eDx = (FLOAT)4294967167.999999762;
 135     ok_int(SetWorldTransform(hdc, &xform), 1);
 136     ok_int(DPtoLP(hdc, apt, 2), 1);
 137     ok_int(apt[0].x * lLogPixelsX, 16896 );
 138     ok_int(apt[0].y * lLogPixelsY, -86784 );
 139     ok_int(apt[1].x * lLogPixelsX, -169344 );
 140     ok_int(apt[1].y * lLogPixelsY, -338784 );
 141
 142     apt[0].x = 100; apt[0].y = 256; apt[1].x = -1000; apt[1].y = 1000;
 143     xform.eM11 = 10000000.;
 144     ok_int(SetWorldTransform(hdc, &xform), 1);
 145     ok_int(DPtoLP(hdc, apt, 2), 1);
 146     ok_int(apt[0].x * lLogPixelsX, -41184 );
 147     ok_int(apt[0].y * lLogPixelsY, -86784 );
 148     ok_int(apt[1].x * lLogPixelsX, -41184 );
 149     ok_int(apt[1].y * lLogPixelsY, -338784 );
 150
 151     xform.eM11 = 1000000.;
 152     ok_int(SetWorldTransform(hdc, &xform), 1);
 153     ok_int(DPtoLP(hdc, apt, 2), 1);
 154     ok_int(apt[0].x * lLogPixelsX, -412320 );
 155     ok_int(apt[0].y * lLogPixelsY, 306048 );
 156     ok_int(apt[1].x * lLogPixelsX, -412320 );
 157     ok_int(apt[1].y * lLogPixelsY, 1195104 );
 158
 159     ReleaseDC(0, hdc);
 160 }
 161
 162 START_TEST(DPtoLP)
 163 {
 164     Test_DPtoLP_Params();
 165     Test_DPtoLP();
 166 }
 167