rostests/apitests/gdi32/CombineTransform.c

   1 /*
   2  * PROJECT:         ReactOS api tests
   3  * LICENSE:         GPL - See COPYING in the top level directory
   4  * PURPOSE:         Test for CreatePen
   5  * PROGRAMMERS:     Timo Kreuzer
   6  */
   7
   8 #include <stdio.h>
   9 #include <wine/test.h>
  10 #include <windows.h>
  11 #include <winddi.h>
  12 #include <reactos/win32k/ntgdityp.h>
  13 #include <reactos/win32k/ntgdihdl.h>
  14
  15 #define ok_int(x, y) ok(x == y, "Wrong value for " #x ", expected " #y ", got %ld\n", (long)x);
  16 #define ok_flt(x, y) ok(x == y, "Wrong value for " #x ", expected " #y ", got %f\n", (double)x);
  17
  18 #define ok_xform(xform, m11, m12, m21, m22, dx, dy) \
  19     ok_flt(xform.eM11, m11); \
  20     ok_flt(xform.eM12, m12); \
  21     ok_flt(xform.eM21, m21); \
  22     ok_flt(xform.eM22, m22); \
  23     ok_flt(xform.eDx, dx); \
  24     ok_flt(xform.eDy, dy);
  25
  26 void Test_CombineTransform()
  27 {
  28     XFORM xform1, xform2, xform3;
  29     BOOL ret;
  30
  31     /* Test NULL paramters */
  32     SetLastError(ERROR_SUCCESS);
  33     ret = CombineTransform(&xform3, &xform1, NULL);
  34     ok_int(ret, 0);
  35     ret = CombineTransform(&xform3, NULL, &xform2);
  36     ok_int(ret, 0);
  37     ret = CombineTransform(NULL, &xform1, &xform2);
  38     ok_int(ret, 0);
  39     ret = CombineTransform(&xform3, &xform1, &xform2);
  40     ok_int(ret, 0);
  41     ok_int(GetLastError(), ERROR_SUCCESS);
  42
  43     /* 2 Identity matrices */
  44     xform1.eM11 = 1.0;
  45     xform1.eM12 = 0;
  46     xform1.eM21 = 0;
  47     xform1.eM22 = 1.0;
  48     xform1.eDx = 0;
  49     xform1.eDy = 0;
  50     xform2 = xform1;
  51     SetLastError(ERROR_SUCCESS);
  52     ret = CombineTransform(&xform3, &xform1, &xform2);
  53     ok_int(ret, 1);
  54     ok_xform(xform3, 1.0, 0., 0., 1.0, 0., 0.);
  55     ok_int(GetLastError(), ERROR_SUCCESS);
  56
  57     /* 2 Identity matrices with offsets */
  58     xform1.eDx = 20.0;
  59     xform1.eDy = -100;
  60     ret = CombineTransform(&xform3, &xform1, &xform2);
  61     ok_int(ret, 1);
  62     ok_xform(xform3, 1.0, 0., 0., 1.0, 20.0, -100.0);
  63
  64     xform2.eDx = -60.0;
  65     xform2.eDy = -20;
  66     ret = CombineTransform(&xform3, &xform1, &xform2);
  67     ok_int(ret, 1);
  68     ok_flt(xform3.eDx, -40.0);
  69     ok_flt(xform3.eDy, -120.0);
  70
  71     /* add some stretching */
  72     xform2.eM11 = 2;
  73     xform2.eM22 = 4;
  74     ret = CombineTransform(&xform3, &xform1, &xform2);
  75     ok_int(ret, 1);
  76     ok_xform(xform3, 2.0, 0., 0., 4.0, -20.0, -420.0);
  77
  78     /* add some more stretching */
  79     xform1.eM11 = -2.5;
  80     xform1.eM22 = 0.5;
  81     ret = CombineTransform(&xform3, &xform1, &xform2);
  82     ok_int(ret, 1);
  83     ok_xform(xform3, -5.0, 0., 0., 2.0, -20.0, -420.0);
  84
  85     xform1.eM12 = 2.0;
  86     xform1.eM21 = -0.5;
  87     ret = CombineTransform(&xform3, &xform1, &xform2);
  88     ok_int(ret, 1);
  89     ok_xform(xform3, -5.0, 8.0, -1.0, 2.0, -20.0, -420.0);
  90
  91     xform2.eM12 = 4.0;
  92     xform2.eM21 = 6.5;
  93     ret = CombineTransform(&xform3, &xform1, &xform2);
  94     ok_int(ret, 1);
  95     ok_xform(xform3, 8.0, -2.0, 2.25, 0.0, -670.0, -340.0);
  96
  97     xform1.eM11 = 1.;
  98     xform1.eM12 = 0;
  99     xform1.eM21 = 0;
 100     xform1.eM22 = 1.;
 101     xform1.eDx = 0;
 102     xform1.eDy = 0;
 103     xform2 = xform1;
 104
 105     xform1.eDx = 4294967167.999999761;
 106     ok(xform1.eDx == 4294967040.0, "float rounding error.\n");
 107     ret = CombineTransform(&xform3, &xform1, &xform2);
 108     ok(ret == 1, "expected ret = 1, got %d\n", ret);
 109
 110     xform1.eDx = 4294967167.999999762;
 111     ok(xform1.eDx == 4294967296.0, "float rounding error.\n");
 112     ret = CombineTransform(&xform3, &xform1, &xform2);
 113     ok_int(ret, 0);
 114     ok_int(GetLastError(), ERROR_SUCCESS);
 115
 116     xform1.eDx = -4294967167.999999761;
 117     ok(xform1.eDx == -4294967040.0, "float rounding error.\n");
 118     ret = CombineTransform(&xform3, &xform1, &xform2);
 119     ok_int(ret, 1);
 120
 121     xform1.eDx = -4294967167.999999762;
 122     ok(xform1.eDx == -4294967296.0, "float rounding error.\n");
 123     ret = CombineTransform(&xform3, &xform1, &xform2);
 124     ok_int(ret, 0);
 125     ok_int(GetLastError(), ERROR_SUCCESS);
 126
 127     xform1.eDx = 0;
 128     xform1.eDy = 4294967167.999999761;
 129     ok(xform1.eDy == 4294967040.0, "float rounding error.\n");
 130     ret = CombineTransform(&xform3, &xform1, &xform2);
 131     ok_int(ret, 1);
 132
 133     xform2.eDy = 1;
 134     ret = CombineTransform(&xform3, &xform1, &xform2);
 135     ok_int(ret, 1);
 136
 137     xform1.eDy = 4294967167.999999762;
 138     ok(xform1.eDy == 4294967296.0, "float rounding error.\n");
 139     ret = CombineTransform(&xform3, &xform1, &xform2);
 140     ok_int(ret, 0);
 141     ok_int(GetLastError(), ERROR_SUCCESS);
 142
 143     xform1.eDy = -4294967167.999999761;
 144     ok(xform1.eDy == -4294967040.0, "float rounding error.\n");
 145     ret = CombineTransform(&xform3, &xform1, &xform2);
 146     ok_int(ret, 1);
 147
 148     xform1.eDy = -4294967167.999999762;
 149     ok(xform1.eDy == -4294967296.0, "float rounding error.\n");
 150     ret = CombineTransform(&xform3, &xform1, &xform2);
 151     ok_int(ret, 0);
 152     ok_int(GetLastError(), ERROR_SUCCESS);
 153
 154     xform2.eDy = 10000;
 155     ret = CombineTransform(&xform3, &xform1, &xform2);
 156     ok_int(ret, 1);
 157
 158     xform1.eDx = -4294967167.999999762;
 159     xform1.eM11 = 1000.0;
 160     xform2.eM11 = 1000.0;
 161     ret = CombineTransform(&xform3, &xform1, &xform2);
 162     ok_int(ret, 0);
 163     ok_int(GetLastError(), ERROR_SUCCESS);
 164
 165     xform1.eDx = 100000.0;
 166     xform2.eM11 = 100000.0;
 167     ret = CombineTransform(&xform3, &xform1, &xform2);
 168     ok_int(ret, 0);
 169     ok_int(GetLastError(), ERROR_SUCCESS);
 170
 171     /* Some undefined values */
 172     *(DWORD*)&xform1.eM11 = 0xffc00000; // (0.0F/0.0F)
 173     xform1.eM12 = 0;
 174     xform1.eM21 = 0;
 175     *(DWORD*)&xform1.eM22 = 0x7f800000; // (1.0F/0.0F)
 176     xform1.eDx = 0;
 177     xform1.eDy = 0;
 178     xform2 = xform1;
 179     SetLastError(ERROR_SUCCESS);
 180     ret = CombineTransform(&xform3, &xform1, &xform2);
 181     ok_int(ret, 1);
 182     ok(*(DWORD*)&xform3.eM11 == 0xffc00000, "eM11: Expected 0xffc00000, got 0x%lx\n", *(DWORD*)&xform3.eM11);
 183     ok(xform3.eM12 == 0, "eM12: Expected 0, got %f\n", xform3.eM12);
 184     ok(xform3.eM21 == 0, "eM21: Expected 0, got %f\n", xform3.eM21);
 185     ok(*(DWORD*)&xform3.eM22 == 0x7f800000, "eM22: Expected 0x7f800000, got 0x%lx\n", *(DWORD*)&xform3.eM22);
 186     ok(xform3.eDx == 0, "eDx: Expected 0, got %f\n", xform3.eDx);
 187     ok(xform3.eDy == 0, "eDy: Expected 0, got %f\n", xform3.eDy);
 188     ok_int(GetLastError(), ERROR_SUCCESS);
 189
 190     /* Some undefined values */
 191     xform2.eM11 = 1.;
 192     xform2.eM22 = 1.;
 193     xform2.eM12 = 1.;
 194     xform2.eM21 = 1.;
 195     ret = CombineTransform(&xform3, &xform1, &xform2);
 196     ok_int(ret, 1);
 197
 198     ok_int(*(DWORD*)&xform3.eM11, 0xffc00000);
 199     ok_int(*(DWORD*)&xform3.eM12, 0xffc00000);
 200     ok_int(*(DWORD*)&xform3.eM21, 0x7f800000);
 201     ok_int(*(DWORD*)&xform3.eM22, 0x7f800000);
 202     ok(xform3.eDx == 0, "eDx: Expected 0, got %f\n", xform3.eDx);
 203     ok(xform3.eDy == 0, "eDy: Expected 0, got %f\n", xform3.eDy);
 204     ok_int(GetLastError(), ERROR_SUCCESS);
 205
 206 }
 207
 208 START_TEST(CombineTransform)
 209 {
 210     Test_CombineTransform();
 211 }
 212