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Sweden-Number/dlls/gdi32/tests/path.c

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/*
* Unit test suite for paths
*
* Copyright 2007 Laurent Vromman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <stdio.h>
#include <assert.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "wine/test.h"
#include "winuser.h"
#include "winerror.h"
static void test_widenpath(void)
{
HDC hdc = GetDC(0);
HPEN greenPen, narrowPen;
HPEN oldPen;
POINT pnt[6];
INT nSize, ret;
DWORD error;
/* Create a pen to be used in WidenPath */
greenPen = CreatePen(PS_SOLID, 10, RGB(0,0,0));
oldPen = SelectObject(hdc, greenPen);
/* Prepare a path */
pnt[0].x = 100;
pnt[0].y = 0;
pnt[1].x = 200;
pnt[1].y = 0;
pnt[2].x = 300;
pnt[2].y = 100;
pnt[3].x = 300;
pnt[3].y = 200;
pnt[4].x = 200;
pnt[4].y = 300;
pnt[5].x = 100;
pnt[5].y = 300;
/* Set a polyline path */
BeginPath(hdc);
Polyline(hdc, pnt, 6);
EndPath(hdc);
/* Widen the polyline path */
ok(WidenPath(hdc), "WidenPath fails while widening a poyline path.\n");
/* Test if WidenPath seems to have done his job */
nSize = GetPath(hdc, NULL, NULL, 0);
ok(nSize != -1, "GetPath fails after calling WidenPath.\n");
ok(nSize > 6, "Path number of points is to low. Should be more than 6 but is %d\n", nSize);
AbortPath(hdc);
/* Test WidenPath with an open path */
SetLastError(0xdeadbeef);
BeginPath(hdc);
ret = WidenPath(hdc);
error = GetLastError();
ok(ret == FALSE && GetLastError() == ERROR_CAN_NOT_COMPLETE, "WidenPath fails while widening an open path. Return value is %d, should be %d. Error is %08x, should be %08x\n", ret, FALSE, GetLastError(), ERROR_CAN_NOT_COMPLETE);
AbortPath(hdc);
/* Test when the pen width is equal to 1. The path should not change */
narrowPen = CreatePen(PS_SOLID, 1, RGB(0,0,0));
oldPen = SelectObject(hdc, narrowPen);
BeginPath(hdc);
Polyline(hdc, pnt, 6);
EndPath(hdc);
nSize = GetPath(hdc, NULL, NULL, 0);
ok(nSize == 6, "WidenPath fails detecting 1px wide pen. Path length is %d, should be 6\n", nSize);
ReleaseDC(0, hdc);
return;
}
/*
* Tests for GDI drawing functions in paths
*/
typedef struct
{
int x, y;
BYTE type;
/* How many extra entries before this one only on wine
* but not on native? */
int wine_only_entries_preceding;
/* Does this entry itself not match on wine? */
int todo;
} path_test_t;
/* Helper function to verify that the current path in the given DC matches the expected path.
*
* We use a "smart" matching algorithm that allows us to detect partial improvements
* in conformance. Specifically, two running indices are kept, one through the actual
* path and one through the expected path. The actual path index always increases,
* whereas, if the wine_entries_preceding field of the appropriate path_test_t element is
* non-zero, the expected path index does not increase for that many elements as long as
* there is no match. This allows us to todo_wine extra path elements that are present only
* in wine but not on native.
*
* Note that if expected_size is zero and the WINETEST_DEBUG environment variable is
* greater than 2, the trace() output is a C path_test_t array structure, useful for making
* new tests that use this function.
*/
static void ok_path(HDC hdc, const path_test_t *expected, int expected_size, BOOL todo_size)
{
static const char *type_string[8] = { "Unknown (0)", "PT_CLOSEFIGURE", "PT_LINETO",
"PT_LINETO | PT_CLOSEFIGURE", "PT_BEZIERTO",
"PT_BEZIERTO | PT_CLOSEFIGURE", "PT_MOVETO", "PT_MOVETO | PT_CLOSEFIGURE"};
POINT *pnt = NULL;
BYTE *types = NULL;
int size, numskip,
idx, eidx = 0;
/* Get the path */
assert(hdc != 0);
size = GetPath(hdc, NULL, NULL, 0);
ok(size > 0, "GetPath returned size %d, last error %d\n", size, GetLastError());
if (size <= 0)
{
skip("Cannot perform path comparisons due to failure to retrieve path.\n");
return;
}
pnt = HeapAlloc(GetProcessHeap(), 0, size*sizeof(POINT));
assert(pnt != 0);
types = HeapAlloc(GetProcessHeap(), 0, size*sizeof(BYTE));
assert(types != 0);
size = GetPath(hdc, pnt, types, size);
assert(size > 0);
if (todo_size) todo_wine
ok(size == expected_size, "Path size %d does not match expected size %d\n", size, expected_size);
else
ok(size == expected_size, "Path size %d does not match expected size %d\n", size, expected_size);
if (expected_size) numskip = expected[eidx].wine_only_entries_preceding;
for (idx = 0; idx < size && eidx < expected_size; idx++)
{
/* We allow a few pixels fudge in matching X and Y coordinates to account for imprecision in
* floating point to integer conversion */
BOOL match = (types[idx] == expected[eidx].type) &&
(pnt[idx].x >= expected[eidx].x-1 && pnt[idx].x <= expected[eidx].x+1) &&
(pnt[idx].y >= expected[eidx].y-1 && pnt[idx].y <= expected[eidx].y+1);
if (winetest_debug > 2)
trace("{%d, %d, %s, 0, 0}, /* %d */\n", pnt[idx].x, pnt[idx].y, type_string[types[idx]], idx);
if (expected[eidx].todo || numskip) todo_wine
ok(match, "Expected #%d: %s (%d,%d) but got %s (%d,%d)\n", eidx,
type_string[expected[eidx].type], expected[eidx].x, expected[eidx].y,
type_string[types[idx]], pnt[idx].x, pnt[idx].y);
else
ok(match, "Expected #%d: %s (%d,%d) but got %s (%d,%d)\n", eidx,
type_string[expected[eidx].type], expected[eidx].x, expected[eidx].y,
type_string[types[idx]], pnt[idx].x, pnt[idx].y);
if (match || !numskip--)
numskip = expected[++eidx].wine_only_entries_preceding;
}
/* If we are debugging and the actual path is longer than the expected path, make
* sure to display the entire path */
if (winetest_debug > 2 && idx < size)
for (; idx < size; idx++)
trace("{%d, %d, %s, 0, 0}, /* %d */\n", pnt[idx].x, pnt[idx].y, type_string[types[idx]], idx);
HeapFree(GetProcessHeap(), 0, types);
HeapFree(GetProcessHeap(), 0, pnt);
}
static const path_test_t arcto_path[] = {
{0, 0, PT_MOVETO, 0, 0}, /* 0 */
{229, 215, PT_LINETO, 0, 0}, /* 1 */
{248, 205, PT_BEZIERTO, 1, 0}, /* 2 */
{273, 200, PT_BEZIERTO, 0, 0}, /* 3 */
{300, 200, PT_BEZIERTO, 0, 0}, /* 4 */
{355, 200, PT_BEZIERTO, 0, 0}, /* 5 */
{399, 222, PT_BEZIERTO, 0, 0}, /* 6 */
{399, 250, PT_BEZIERTO, 0, 0}, /* 7 */
{399, 263, PT_BEZIERTO, 0, 0}, /* 8 */
{389, 275, PT_BEZIERTO, 0, 0}, /* 9 */
{370, 285, PT_BEZIERTO, 0, 0}, /* 10 */
{363, 277, PT_LINETO, 1, 0}, /* 11 */
{380, 270, PT_BEZIERTO, 1, 0}, /* 12 */
{389, 260, PT_BEZIERTO, 0, 0}, /* 13 */
{389, 250, PT_BEZIERTO, 0, 0}, /* 14 */
{389, 228, PT_BEZIERTO, 0, 0}, /* 15 */
{349, 210, PT_BEZIERTO, 0, 0}, /* 16 */
{300, 210, PT_BEZIERTO, 0, 0}, /* 17 */
{276, 210, PT_BEZIERTO, 0, 0}, /* 18 */
{253, 214, PT_BEZIERTO, 0, 0}, /* 19 */
{236, 222, PT_BEZIERTO | PT_CLOSEFIGURE, 0, 0}}; /* 20 */
static void test_arcto(void)
{
HDC hdc = GetDC(0);
BeginPath(hdc);
SetArcDirection(hdc, AD_CLOCKWISE);
if (!ArcTo(hdc, 200, 200, 400, 300, 200, 200, 400, 300) &&
GetLastError() == ERROR_CALL_NOT_IMPLEMENTED)
{
/* ArcTo is only available on Win2k and later */
skip("ArcTo is not available\n");
goto done;
}
SetArcDirection(hdc, AD_COUNTERCLOCKWISE);
ArcTo(hdc, 210, 210, 390, 290, 390, 290, 210, 210);
CloseFigure(hdc);
EndPath(hdc);
ok_path(hdc, arcto_path, sizeof(arcto_path)/sizeof(path_test_t), 1);
done:
ReleaseDC(0, hdc);
}
START_TEST(path)
{
test_widenpath();
test_arcto();
}
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