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wine/dlls/gdi32/tests/path.c

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/*
* Unit test suite for paths
*
* Copyright 2007 Laurent Vromman
* Copyright 2007 Misha Koshelev
*
* 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"
#define expect(expected, got) ok(got == expected, "Expected %.8x, got %.8x\n", expected, got)
static void test_widenpath(void)
{
HDC hdc = GetDC(0);
HPEN greenPen, narrowPen;
HPEN oldPen;
POINT pnt[6];
INT nSize, ret;
/* 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 too low. Should be more than 6 but is %d\n", nSize);
AbortPath(hdc);
/* Test WidenPath with an open path (last error only set on Win2k and later) */
SetLastError(0xdeadbeef);
BeginPath(hdc);
ret = WidenPath(hdc);
ok(ret == FALSE && (GetLastError() == ERROR_CAN_NOT_COMPLETE || GetLastError() == 0xdeadbeef),
"WidenPath fails while widening an open path. Return value is %d, should be %d. Error is %u\n", ret, FALSE, GetLastError());
AbortPath(hdc);
/* Test when the pen width is equal to 1. The path should change too */
narrowPen = CreatePen(PS_SOLID, 1, RGB(0,0,0));
oldPen = SelectObject(hdc, narrowPen);
BeginPath(hdc);
Polyline(hdc, pnt, 6);
EndPath(hdc);
ret = WidenPath(hdc);
nSize = GetPath(hdc, NULL, NULL, 0);
ok(nSize > 6, "WidenPath should compute a widdened path with a 1px wide pen. Path length is %d, should be more than 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;
/* 0 - This entry matches on wine.
* 1 - This entry corresponds to a single entry on wine that does not match the native entry.
* 2 - This entry is currently skipped on wine but present on native. */
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 increases unless there is
* no match and the todo field of the appropriate path_test_t element is 2. Similarly,
* 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
* on wine but not on native and vice versa.
*
* 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 char *path_name, 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 = 0, 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 (winetest_debug > 2)
trace("static const path_test_t %s[] = {\n", path_name);
numskip = expected_size ? expected[eidx].wine_only_entries_preceding : 0;
while (idx < size && eidx < expected_size)
{
/* 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-2 && pnt[idx].x <= expected[eidx].x+2) &&
(pnt[idx].y >= expected[eidx].y-2 && pnt[idx].y <= expected[eidx].y+2);
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 || expected[eidx].todo != 2)
{
if (winetest_debug > 2)
trace(" {%d, %d, %s, 0, 0}%s /* %d */\n", pnt[idx].x, pnt[idx].y,
type_string[types[idx]], idx < size-1 ? "," : "};", idx);
idx++;
}
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}%s /* %d */\n", pnt[idx].x, pnt[idx].y,
type_string[types[idx]], idx < size-1 ? "," : "};", 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, 0, 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, 0, 0}, /* 11 */
{380, 270, PT_BEZIERTO, 0, 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", arcto_path, sizeof(arcto_path)/sizeof(path_test_t), 0);
done:
ReleaseDC(0, hdc);
}
static const path_test_t anglearc_path[] = {
{0, 0, PT_MOVETO, 0, 0}, /* 0 */
{371, 229, PT_LINETO, 0, 0}, /* 1 */
{352, 211, PT_BEZIERTO, 0, 0}, /* 2 */
{327, 200, PT_BEZIERTO, 0, 0}, /* 3 */
{300, 200, PT_BEZIERTO, 0, 0}, /* 4 */
{245, 200, PT_BEZIERTO, 0, 0}, /* 5 */
{200, 245, PT_BEZIERTO, 0, 0}, /* 6 */
{200, 300, PT_BEZIERTO, 0, 0}, /* 7 */
{200, 300, PT_BEZIERTO, 0, 2}, /* 8 */
{200, 300, PT_BEZIERTO, 0, 2}, /* 9 */
{200, 300, PT_BEZIERTO, 0, 2}, /* 10 */
{231, 260, PT_LINETO, 0, 0}, /* 11 */
{245, 235, PT_BEZIERTO, 0, 0}, /* 12 */
{271, 220, PT_BEZIERTO, 0, 0}, /* 13 */
{300, 220, PT_BEZIERTO, 0, 0}, /* 14 */
{344, 220, PT_BEZIERTO, 0, 0}, /* 15 */
{380, 256, PT_BEZIERTO, 0, 0}, /* 16 */
{380, 300, PT_BEZIERTO, 0, 0}, /* 17 */
{380, 314, PT_BEZIERTO, 0, 0}, /* 18 */
{376, 328, PT_BEZIERTO, 0, 0}, /* 19 */
{369, 340, PT_BEZIERTO | PT_CLOSEFIGURE, 0, 0}}; /* 20 */
static void test_anglearc(void)
{
HDC hdc = GetDC(0);
BeginPath(hdc);
if (!AngleArc(hdc, 300, 300, 100, 45.0, 135.0) &&
GetLastError() == ERROR_CALL_NOT_IMPLEMENTED)
{
/* AngleArc is only available on Win2k and later */
skip("AngleArc is not available\n");
goto done;
}
AngleArc(hdc, 300, 300, 80, 150.0, -180.0);
CloseFigure(hdc);
EndPath(hdc);
ok_path(hdc, "anglearc_path", anglearc_path, sizeof(anglearc_path)/sizeof(path_test_t), 1);
done:
ReleaseDC(0, hdc);
}
static const path_test_t polydraw_path[] = {
{0, 0, PT_MOVETO, 0, 0}, /*0*/
{10, 10, PT_LINETO, 0, 0}, /*1*/
{10, 15, PT_LINETO | PT_CLOSEFIGURE, 0, 0}, /*2*/
{100, 100, PT_MOVETO, 0, 0}, /*3*/
{95, 95, PT_LINETO, 0, 0}, /*4*/
{10, 10, PT_LINETO, 0, 0}, /*5*/
{10, 15, PT_LINETO | PT_CLOSEFIGURE, 0, 0}, /*6*/
{100, 100, PT_MOVETO, 0, 0}, /*7*/
{15, 15, PT_LINETO, 0, 0}, /*8*/
{25, 25, PT_MOVETO, 0, 0}, /*9*/
{25, 30, PT_LINETO, 0, 0}, /*10*/
{100, 100, PT_MOVETO, 0, 0}, /*11*/
{30, 30, PT_BEZIERTO, 0, 0}, /*12*/
{30, 35, PT_BEZIERTO, 0, 0}, /*13*/
{35, 35, PT_BEZIERTO, 0, 0}, /*14*/
{35, 40, PT_LINETO, 0, 0}, /*15*/
{40, 40, PT_MOVETO, 0, 0}, /*16*/
{40, 45, PT_LINETO, 0, 0}, /*17*/
{35, 40, PT_MOVETO, 0, 0}, /*18*/
{45, 50, PT_LINETO, 0, 0}, /*19*/
{35, 40, PT_MOVETO, 0, 0}, /*20*/
{50, 55, PT_LINETO, 0, 0}, /*21*/
{45, 50, PT_LINETO, 0, 0}, /*22*/
{35, 40, PT_MOVETO, 0, 0}, /*23*/
{60, 60, PT_LINETO, 0, 0}, /*24*/
{60, 65, PT_MOVETO, 0, 0}, /*25*/
{65, 65, PT_LINETO, 0, 0} /*26*/
};
static POINT polydraw_pts[] = {
{10, 10}, {10, 15},
{15, 15}, {15, 20}, {20, 20}, {20, 25},
{25, 25}, {25, 30},
{30, 30}, {30, 35}, {35, 35}, {35, 40},
{40, 40}, {40, 45}, {45, 45},
{45, 50}, {50, 50},
{50, 55}, {45, 50}, {55, 60},
{60, 60}, {60, 65}, {65, 65}};
static BYTE polydraw_tps[] =
{PT_LINETO, PT_CLOSEFIGURE | PT_LINETO, /* 2 */
PT_LINETO, PT_BEZIERTO, PT_LINETO, PT_LINETO, /* 6 */
PT_MOVETO, PT_LINETO, /* 8 */
PT_BEZIERTO, PT_BEZIERTO, PT_BEZIERTO, PT_LINETO, /* 12 */
PT_MOVETO, PT_LINETO, PT_CLOSEFIGURE, /* 15 */
PT_LINETO, PT_MOVETO | PT_CLOSEFIGURE, /* 17 */
PT_LINETO, PT_LINETO, PT_MOVETO | PT_CLOSEFIGURE, /* 20 */
PT_LINETO, PT_MOVETO | PT_LINETO, PT_LINETO}; /* 23 */
static void test_polydraw(void)
{
BOOL retb;
HDC hdc = GetDC(0);
BeginPath(hdc);
/* closefigure with no previous moveto */
if (!(retb = PolyDraw(hdc, polydraw_pts, polydraw_tps, 2)) &&
GetLastError() == ERROR_CALL_NOT_IMPLEMENTED)
{
/* PolyDraw is only available on Win2k and later */
skip("PolyDraw is not available\n");
goto done;
}
expect(TRUE, retb);
MoveToEx(hdc, 100, 100, NULL);
LineTo(hdc, 95, 95);
/* closefigure with previous moveto */
retb = PolyDraw(hdc, polydraw_pts, polydraw_tps, 2);
expect(TRUE, retb);
/* bad bezier points */
retb = PolyDraw(hdc, &(polydraw_pts[2]), &(polydraw_tps[2]), 4);
expect(FALSE, retb);
retb = PolyDraw(hdc, &(polydraw_pts[6]), &(polydraw_tps[6]), 4);
expect(FALSE, retb);
/* good bezier points */
retb = PolyDraw(hdc, &(polydraw_pts[8]), &(polydraw_tps[8]), 4);
expect(TRUE, retb);
/* does lineto or bezierto take precedence? */
retb = PolyDraw(hdc, &(polydraw_pts[12]), &(polydraw_tps[12]), 4);
expect(FALSE, retb);
/* bad point type, has already moved cursor position */
retb = PolyDraw(hdc, &(polydraw_pts[15]), &(polydraw_tps[15]), 4);
expect(FALSE, retb);
/* bad point type, cursor position is moved, but back to its original spot */
retb = PolyDraw(hdc, &(polydraw_pts[17]), &(polydraw_tps[17]), 4);
expect(FALSE, retb);
/* does lineto or moveto take precedence? */
retb = PolyDraw(hdc, &(polydraw_pts[20]), &(polydraw_tps[20]), 3);
expect(TRUE, retb);
EndPath(hdc);
ok_path(hdc, "polydraw_path", polydraw_path, sizeof(polydraw_path)/sizeof(path_test_t), 0);
done:
ReleaseDC(0, hdc);
}
static void test_closefigure(void) {
BOOL retb;
int nSize, nSizeWitness;
HDC hdc = GetDC(0);
BeginPath(hdc);
MoveToEx(hdc, 95, 95, NULL);
LineTo(hdc, 95, 0);
LineTo(hdc, 0, 95);
retb = CloseFigure(hdc);
EndPath(hdc);
nSize = GetPath(hdc, NULL, NULL, 0);
AbortPath(hdc);
BeginPath(hdc);
MoveToEx(hdc, 95, 95, NULL);
LineTo(hdc, 95, 0);
LineTo(hdc, 0, 95);
EndPath(hdc);
nSizeWitness = GetPath(hdc, NULL, NULL, 0);
/* This test shows CloseFigure does not have to add a point at the end of the path */
ok(nSize == nSizeWitness, "Wrong number of points, no point should be added by CloseFigure\n");
ReleaseDC(0, hdc);
}
static void WINAPI linedda_callback(INT x, INT y, LPARAM lparam)
{
POINT **pt = (POINT**)lparam;
ok((*pt)->x == x && (*pt)->y == y, "point mismatch expect(%d,%d) got(%d,%d)\n",
(*pt)->x, (*pt)->y, x, y);
(*pt)++;
return;
}
static void test_linedda(void)
{
const POINT *pt;
static const POINT array_10_20_20_40[] = {{10,20},{10,21},{11,22},{11,23},
{12,24},{12,25},{13,26},{13,27},
{14,28},{14,29},{15,30},{15,31},
{16,32},{16,33},{17,34},{17,35},
{18,36},{18,37},{19,38},{19,39},
{-1,-1}};
static const POINT array_10_20_20_43[] = {{10,20},{10,21},{11,22},{11,23},
{12,24},{12,25},{13,26},{13,27},
{13,28},{14,29},{14,30},{15,31},
{15,32},{16,33},{16,34},{17,35},
{17,36},{17,37},{18,38},{18,39},
{19,40},{19,41},{20,42},{-1,-1}};
static const POINT array_10_20_10_20[] = {{-1,-1}};
static const POINT array_10_20_11_27[] = {{10,20},{10,21},{10,22},{10,23},
{11,24},{11,25},{11,26},{-1,-1}};
static const POINT array_20_43_10_20[] = {{20,43},{20,42},{19,41},{19,40},
{18,39},{18,38},{17,37},{17,36},
{17,35},{16,34},{16,33},{15,32},
{15,31},{14,30},{14,29},{13,28},
{13,27},{13,26},{12,25},{12,24},
{11,23},{11,22},{10,21},{-1,-1}};
static const POINT array_20_20_10_43[] = {{20,20},{20,21},{19,22},{19,23},
{18,24},{18,25},{17,26},{17,27},
{17,28},{16,29},{16,30},{15,31},
{15,32},{14,33},{14,34},{13,35},
{13,36},{13,37},{12,38},{12,39},
{11,40},{11,41},{10,42},{-1,-1}};
static const POINT array_20_20_43_10[] = {{20,20},{21,20},{22,19},{23,19},
{24,18},{25,18},{26,17},{27,17},
{28,17},{29,16},{30,16},{31,15},
{32,15},{33,14},{34,14},{35,13},
{36,13},{37,13},{38,12},{39,12},
{40,11},{41,11},{42,10},{-1,-1}};
pt = array_10_20_20_40;
LineDDA(10, 20, 20, 40, linedda_callback, (LPARAM)&pt);
ok(pt->x == -1 && pt->y == -1, "didn't find terminator\n");
pt = array_10_20_20_43;
LineDDA(10, 20, 20, 43, linedda_callback, (LPARAM)&pt);
ok(pt->x == -1 && pt->y == -1, "didn't find terminator\n");
pt = array_10_20_10_20;
LineDDA(10, 20, 10, 20, linedda_callback, (LPARAM)&pt);
ok(pt->x == -1 && pt->y == -1, "didn't find terminator\n");
pt = array_10_20_11_27;
LineDDA(10, 20, 11, 27, linedda_callback, (LPARAM)&pt);
ok(pt->x == -1 && pt->y == -1, "didn't find terminator\n");
pt = array_20_43_10_20;
LineDDA(20, 43, 10, 20, linedda_callback, (LPARAM)&pt);
ok(pt->x == -1 && pt->y == -1, "didn't find terminator\n");
pt = array_20_20_10_43;
LineDDA(20, 20, 10, 43, linedda_callback, (LPARAM)&pt);
ok(pt->x == -1 && pt->y == -1, "didn't find terminator\n");
pt = array_20_20_43_10;
LineDDA(20, 20, 43, 10, linedda_callback, (LPARAM)&pt);
ok(pt->x == -1 && pt->y == -1, "didn't find terminator\n");
}
START_TEST(path)
{
test_widenpath();
test_arcto();
test_anglearc();
test_polydraw();
test_closefigure();
test_linedda();
}
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