matrix.c File Reference

#include <math.h>
#include <limits.h>
#include "objbase.h"
#include "gdiplus.h"
#include "wine/test.h"

Include dependency graph for matrix.c:

Go to the source code of this file.

Classes
struct	real_point

Macros
#define	expect(expected, got)   ok(got == expected, "Expected %.8x, got %.8x\n", expected, got)
#define	expectf(expected, got)   ok(fabs(expected - got) < 0.0001, "Expected %.2f, got %.2f\n", expected, got)

Functions
static BOOL	compare_float (float f, float g, unsigned int ulps)
static void	test_constructor_destructor (void)
static void	test_transform (void)
static void	test_isinvertible (void)
static void	test_invert (void)
static void	test_shear (void)
static void	test_constructor3 (void)
static void	test_isidentity (void)
	START_TEST (matrix)

Variables
static real_point	transform_points []

Macro Definition Documentation

expect

#define expect	(		expected,
			got
	)		ok(got == expected, "Expected %.8x, got %.8x\n", expected, got)

Definition at line 28 of file matrix.c.

expectf

#define expectf	(		expected,
			got
	)		ok(fabs(expected - got) < 0.0001, "Expected %.2f, got %.2f\n", expected, got)

Definition at line 29 of file matrix.c.

Function Documentation

compare_float()

static BOOL compare_float ( float  f, float  g, unsigned int  ulps  )

static

Definition at line 31 of file matrix.c.

{
    int x = *(int *)&f;
    int y = *(int *)&g;
 
    if (x < 0)
        x = INT_MIN - x;
    if (y < 0)
        y = INT_MIN - y;
 
    if (abs(x - y) > ulps)
        return FALSE;
 
    return TRUE;
}

START_TEST()

START_TEST

(

matrix

)

Definition at line 373 of file matrix.c.

{
    struct GdiplusStartupInput gdiplusStartupInput;
    ULONG_PTR gdiplusToken;
    HMODULE hmsvcrt;
    int (CDECL * _controlfp_s)(unsigned int *cur, unsigned int newval, unsigned int mask);
 
    /* Enable all FP exceptions except _EM_INEXACT, which gdi32 can trigger */
    hmsvcrt = LoadLibraryA("msvcrt");
    _controlfp_s = (void*)GetProcAddress(hmsvcrt, "_controlfp_s");
    if (_controlfp_s) _controlfp_s(0, 0, 0x0008001e);
 
    gdiplusStartupInput.GdiplusVersion              = 1;
    gdiplusStartupInput.DebugEventCallback          = NULL;
    gdiplusStartupInput.SuppressBackgroundThread    = 0;
    gdiplusStartupInput.SuppressExternalCodecs      = 0;
 
    GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
 
    test_constructor_destructor();
    test_transform();
    test_isinvertible();
    test_invert();
    test_shear();
    test_constructor3();
    test_isidentity();
 
    GdiplusShutdown(gdiplusToken);
}

test_constructor3()

static void test_constructor3 ( void  )

static

Definition at line 257 of file matrix.c.

{
    /* MSDN is on crack. GdipCreateMatrix3 makes a matrix that transforms the
     * corners of the given rectangle to the three points given. */
    GpMatrix *matrix;
    REAL values[6];
    GpRectF rc;
    GpPointF pt[3];
    GpStatus stat;
 
    rc.X = 10;
    rc.Y = 10;
    rc.Width = 10;
    rc.Height = 10;
 
    pt[0].X = 10;
    pt[0].Y = 10;
    pt[1].X = 20;
    pt[1].Y = 10;
    pt[2].X = 10;
    pt[2].Y = 20;
 
    stat = GdipCreateMatrix3(&rc, pt, &matrix);
    expect(Ok, stat);
 
    stat = GdipGetMatrixElements(matrix, values);
    expect(Ok, stat);
 
    expectf(1.0, values[0]);
    expectf(0.0, values[1]);
    expectf(0.0, values[2]);
    expectf(1.0, values[3]);
    expectf(0.0, values[4]);
    expectf(0.0, values[5]);
 
    GdipDeleteMatrix(matrix);
 
    pt[0].X = 20;
    pt[0].Y = 10;
    pt[1].X = 40;
    pt[1].Y = 10;
    pt[2].X = 20;
    pt[2].Y = 20;
 
    stat = GdipCreateMatrix3(&rc, pt, &matrix);
    expect(Ok, stat);
 
    stat = GdipGetMatrixElements(matrix, values);
    expect(Ok, stat);
 
    expectf(2.0, values[0]);
    expectf(0.0, values[1]);
    expectf(0.0, values[2]);
    expectf(1.0, values[3]);
    expectf(0.0, values[4]);
    expectf(0.0, values[5]);
 
    GdipDeleteMatrix(matrix);
 
    pt[0].X = 10;
    pt[0].Y = 20;
    pt[1].X = 20;
    pt[1].Y = 30;
    pt[2].X = 10;
    pt[2].Y = 30;
 
    stat = GdipCreateMatrix3(&rc, pt, &matrix);
    expect(Ok, stat);
 
    stat = GdipGetMatrixElements(matrix, values);
    expect(Ok, stat);
 
    expectf(1.0, values[0]);
    expectf(1.0, values[1]);
    expectf(0.0, values[2]);
    expectf(1.0, values[3]);
    expectf(0.0, values[4]);
    expectf(0.0, values[5]);
 
    GdipDeleteMatrix(matrix);
}

Referenced by START_TEST().

test_constructor_destructor()

static void test_constructor_destructor ( void  )

static

Definition at line 47 of file matrix.c.

{
    GpStatus status;
    GpMatrix *matrix = NULL;
 
    status = GdipCreateMatrix2(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, &matrix);
    expect(Ok, status);
    ok(matrix != NULL, "Expected matrix to be initialized\n");
 
    status = GdipDeleteMatrix(NULL);
    expect(InvalidParameter, status);
 
    status = GdipDeleteMatrix(matrix);
    expect(Ok, status);
}

Referenced by START_TEST().

test_invert()

static void test_invert ( void  )

static

Definition at line 142 of file matrix.c.

{
    GpStatus status;
    GpMatrix *matrix = NULL;
    GpMatrix *inverted = NULL;
    BOOL equal = FALSE;
    REAL elems[6];
 
    /* NULL */
    status = GdipInvertMatrix(NULL);
    expect(InvalidParameter, status);
 
    /* noninvertible */
    GdipCreateMatrix2(2.0, -1.0, 6.0, -3.0, 2.2, 3.0, &matrix);
    status = GdipInvertMatrix(matrix);
    expect(InvalidParameter, status);
    GdipDeleteMatrix(matrix);
 
    /* invertible */
    GdipCreateMatrix2(3.0, -2.0, 5.0, 2.0, 6.0, 3.0, &matrix);
    status = GdipInvertMatrix(matrix);
    expect(Ok, status);
    GdipCreateMatrix2(2.0/16.0, 2.0/16.0, -5.0/16.0, 3.0/16.0, 3.0/16.0, -21.0/16.0, &inverted);
    GdipIsMatrixEqual(matrix, inverted, &equal);
    expect(TRUE, equal);
    GdipDeleteMatrix(matrix);
 
    GdipCreateMatrix2(0.0006, 0, 0, 0.0006, 400, 400, &matrix);
    status = GdipInvertMatrix(matrix);
    expect(Ok, status);
    status = GdipGetMatrixElements(matrix, elems);
    expect(Ok, status);
    ok(compare_float(elems[0], 1666.666504, 1), "elems[0] = %.10g\n", elems[0]);
    ok(compare_float(elems[1], 0, 0), "elems[1] = %.10g\n", elems[1]);
    ok(compare_float(elems[2], 0, 0), "elems[2] = %.10g\n", elems[2]);
    ok(compare_float(elems[3], 1666.666504, 1), "elems[3] = %.10g\n", elems[3]);
    ok(compare_float(elems[4], -666666.6875, 1), "elems[4] = %.10g\n", elems[4]);
    ok(compare_float(elems[5], -666666.6875, 1), "elems[5] = %.10g\n", elems[5]);
 
    GdipDeleteMatrix(inverted);
    GdipDeleteMatrix(matrix);
}

Referenced by START_TEST().

test_isidentity()

static void test_isidentity ( void  )

static

Definition at line 339 of file matrix.c.

{
    GpMatrix *matrix;
    GpStatus stat;
    BOOL result;
 
    stat = GdipIsMatrixIdentity(NULL, NULL);
    expect(InvalidParameter, stat);
 
    stat = GdipIsMatrixIdentity(NULL, &result);
    expect(InvalidParameter, stat);
 
    stat = GdipCreateMatrix2(1.0, 0.0, 0.0, 1.0, 0.0, 0.0, &matrix);
    expect(Ok, stat);
 
    stat = GdipIsMatrixIdentity(matrix, NULL);
    expect(InvalidParameter, stat);
 
    result = FALSE;
    stat = GdipIsMatrixIdentity(matrix, &result);
    expect(Ok, stat);
    ok(!!result, "got %d\n", result);
 
    stat = GdipSetMatrixElements(matrix, 1.0, 0.0, 0.0, 1.0, 0.1, 0.0);
    expect(Ok, stat);
 
    result = TRUE;
    stat = GdipIsMatrixIdentity(matrix, &result);
    expect(Ok, stat);
    ok(!result, "got %d\n", result);
 
    GdipDeleteMatrix(matrix);
}

Referenced by START_TEST().

test_isinvertible()

static void test_isinvertible ( void  )

static

Definition at line 113 of file matrix.c.

{
    GpStatus status;
    GpMatrix *matrix = NULL;
    BOOL result;
 
    /* NULL arguments */
    status = GdipIsMatrixInvertible(NULL, &result);
    expect(InvalidParameter, status);
    status = GdipIsMatrixInvertible((GpMatrix*)0xdeadbeef, NULL);
    expect(InvalidParameter, status);
    status = GdipIsMatrixInvertible(NULL, NULL);
    expect(InvalidParameter, status);
 
    /* invertible */
    GdipCreateMatrix2(1.0, 1.2, 2.3, -1.0, 2.0, 3.0, &matrix);
    status = GdipIsMatrixInvertible(matrix, &result);
    expect(Ok, status);
    expect(TRUE, result);
    GdipDeleteMatrix(matrix);
 
    /* noninvertible */
    GdipCreateMatrix2(2.0, -1.0, 6.0, -3.0, 2.2, 3.0, &matrix);
    status = GdipIsMatrixInvertible(matrix, &result);
    expect(Ok, status);
    expect(FALSE, result);
    GdipDeleteMatrix(matrix);
}

Referenced by START_TEST().

test_shear()

static void test_shear ( void  )

static

Definition at line 185 of file matrix.c.

{
    GpStatus status;
    GpMatrix *matrix  = NULL;
    GpMatrix *sheared = NULL;
    BOOL equal;
 
    /* NULL */
    status = GdipShearMatrix(NULL, 0.0, 0.0, MatrixOrderPrepend);
    expect(InvalidParameter, status);
 
    /* X only shearing, MatrixOrderPrepend */
    GdipCreateMatrix2(1.0, 2.0, 4.0, -1.0, 6.0, 3.0, &matrix);
    status = GdipShearMatrix(matrix, 1.5, 0.0, MatrixOrderPrepend);
    expect(Ok, status);
    GdipCreateMatrix2(1.0, 2.0, 5.5, 2.0, 6.0, 3.0, &sheared);
    GdipIsMatrixEqual(matrix, sheared, &equal);
    expect(TRUE, equal);
    GdipDeleteMatrix(sheared);
    GdipDeleteMatrix(matrix);
 
    /* X only shearing, MatrixOrderAppend */
    GdipCreateMatrix2(1.0, 2.0, 4.0, -1.0, 6.0, 3.0, &matrix);
    status = GdipShearMatrix(matrix, 1.5, 0.0, MatrixOrderAppend);
    expect(Ok, status);
    GdipCreateMatrix2(4.0, 2.0, 2.5, -1.0, 10.5, 3.0, &sheared);
    GdipIsMatrixEqual(matrix, sheared, &equal);
    expect(TRUE, equal);
    GdipDeleteMatrix(sheared);
    GdipDeleteMatrix(matrix);
 
    /* Y only shearing, MatrixOrderPrepend */
    GdipCreateMatrix2(1.0, 2.0, 4.0, -1.0, 6.0, 3.0, &matrix);
    status = GdipShearMatrix(matrix, 0.0, 1.5, MatrixOrderPrepend);
    expect(Ok, status);
    GdipCreateMatrix2(7.0, 0.5, 4.0, -1.0, 6.0, 3.0, &sheared);
    GdipIsMatrixEqual(matrix, sheared, &equal);
    expect(TRUE, equal);
    GdipDeleteMatrix(sheared);
    GdipDeleteMatrix(matrix);
 
    /* Y only shearing, MatrixOrderAppend */
    GdipCreateMatrix2(1.0, 2.0, 4.0, -1.0, 6.0, 3.0, &matrix);
    status = GdipShearMatrix(matrix, 0.0, 1.5, MatrixOrderAppend);
    expect(Ok, status);
    GdipCreateMatrix2(1.0, 3.5, 4.0, 5.0, 6.0, 12.0, &sheared);
    GdipIsMatrixEqual(matrix, sheared, &equal);
    expect(TRUE, equal);
    GdipDeleteMatrix(sheared);
    GdipDeleteMatrix(matrix);
 
    /* X,Y shearing, MatrixOrderPrepend */
    GdipCreateMatrix2(1.0, 2.0, 4.0, -1.0, 6.0, 3.0, &matrix);
    status = GdipShearMatrix(matrix, 4.0, 1.5, MatrixOrderPrepend);
    expect(Ok, status);
    GdipCreateMatrix2(7.0, 0.5, 8.0, 7.0, 6.0, 3.0, &sheared);
    GdipIsMatrixEqual(matrix, sheared, &equal);
    expect(TRUE, equal);
    GdipDeleteMatrix(sheared);
    GdipDeleteMatrix(matrix);
 
    /* X,Y shearing, MatrixOrderAppend */
    GdipCreateMatrix2(1.0, 2.0, 4.0, -1.0, 6.0, 3.0, &matrix);
    status = GdipShearMatrix(matrix, 4.0, 1.5, MatrixOrderAppend);
    expect(Ok, status);
    GdipCreateMatrix2(9.0, 3.5, 0.0, 5.0, 18.0, 12.0, &sheared);
    GdipIsMatrixEqual(matrix, sheared, &equal);
    expect(TRUE, equal);
    GdipDeleteMatrix(sheared);
    GdipDeleteMatrix(matrix);
}

Referenced by START_TEST().

test_transform()

static void test_transform ( void  )

static

Definition at line 81 of file matrix.c.

{
    GpStatus status;
    GpMatrix *matrix = NULL;
    GpPointF pts[10];
    INT i;
    BOOL match;
 
    for(i = 0; i < 10; i ++){
        pts[i].X = i * 5.0 * (REAL)(i % 2);
        pts[i].Y = 50.0 - i * 5.0;
    }
 
    GdipCreateMatrix2(1.0, -2.0, 30.0, 40.0, -500.0, 600.0, &matrix);
 
    status = GdipTransformMatrixPoints(matrix, pts, 0);
    expect(InvalidParameter, status);
 
    status = GdipTransformMatrixPoints(matrix, pts, 10);
    expect(Ok, status);
 
    for(i = 0; i < 10; i ++){
        match = fabs(transform_points[i].X - pts[i].X) < 2.0
            && fabs(transform_points[i].Y -  pts[i].Y) < 2.0;
 
        ok(match, "Expected #%d to be (%.2f, %.2f) but got (%.2f, %.2f)\n", i,
           transform_points[i].X, transform_points[i].Y, pts[i].X, pts[i].Y);
    }
 
    GdipDeleteMatrix(matrix);
}

Referenced by START_TEST().

Variable Documentation

transform_points

real_point transform_points[]

static

Initial value:

= {
    {1000.00, 2600.00}, 
    {855.00, 2390.00}, 
    {700.00, 2200.00}, 
    {565.00, 1970.00}, 
    {400.00, 1800.00}, 
    {275.00, 1550.00}, 
    {100.00, 1400.00}, 
    {-15.00, 1130.00}, 
    {-200.00, 1000.00}, 
    {-305.00, 710.00} 
    }

Definition at line 68 of file matrix.c.

Referenced by test_transform().