Amebis/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Extend affine transformation matrix tests

Browse Source 
Add tests of affine transformation matrix for wxGCDC with various renderers.
This commit is contained in:
Artur Wieczorek
2016-09-08 19:14:21 +02:00
parent 49000defcf
commit 83527e93d1
1 changed files with 331 additions and 68 deletions
Download Patch File Download Diff File Expand all files Collapse all files

399
tests/graphics/affinematrix.cpp
View File

@@ -20,46 +20,27 @@
#include "wx/dcmemory.h"
#include "wx/affinematrix2d.h"
#include "wx/math.h"
#if wxUSE_GRAPHICS_CONTEXT
#include "wx/dcgraph.h"
#endif // wxUSE_GRAPHICS_CONTEXT
#include "testimage.h"
// ----------------------------------------------------------------------------
// test class
// Affine transform test class
// ----------------------------------------------------------------------------
class AffineTransformTestCase : public CppUnit::TestCase
{
public:
AffineTransformTestCase()
{
wxImage::AddHandler(new wxJPEGHandler);
}
virtual void setUp();
AffineTransformTestCase() {}
private:
CPPUNIT_TEST_SUITE( AffineTransformTestCase );
CPPUNIT_TEST( InvertMatrix );
#if wxUSE_DC_TRANSFORM_MATRIX
CPPUNIT_TEST( VMirrorAndTranslate );
CPPUNIT_TEST( Rotate90Clockwise );
#if wxUSE_GRAPHICS_CONTEXT
CPPUNIT_TEST( CompareToGraphicsContext );
#endif // wxUSE_GRAPHICS_CONTEXT
#endif // wxUSE_DC_TRANSFORM_MATRIX
CPPUNIT_TEST_SUITE_END();
void InvertMatrix();
#if wxUSE_DC_TRANSFORM_MATRIX
void VMirrorAndTranslate();
void Rotate90Clockwise();
#if wxUSE_GRAPHICS_CONTEXT
void CompareToGraphicsContext();
#endif // wxUSE_GRAPHICS_CONTEXT
wxImage m_imgOrig;
wxBitmap m_bmpOrig;
#endif // wxUSE_DC_TRANSFORM_MATRIX
wxDECLARE_NO_COPY_CLASS(AffineTransformTestCase);
};
@@ -70,17 +51,6 @@ CPPUNIT_TEST_SUITE_REGISTRATION( AffineTransformTestCase );
// also include in its own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( AffineTransformTestCase, "AffineTransformTestCase" );
void AffineTransformTestCase::setUp()
{
#if wxUSE_DC_TRANSFORM_MATRIX
m_imgOrig.LoadFile("horse.jpg");
CPPUNIT_ASSERT( m_imgOrig.IsOk() );
m_bmpOrig = wxBitmap(m_imgOrig);
#endif // wxUSE_DC_TRANSFORM_MATRIX
}
void AffineTransformTestCase::InvertMatrix()
{
wxAffineMatrix2D matrix1;
@@ -105,53 +75,336 @@ void AffineTransformTestCase::InvertMatrix()
}
#if wxUSE_DC_TRANSFORM_MATRIX
// -------------------------------
// Transform matrix test classes
// -------------------------------
void AffineTransformTestCase::VMirrorAndTranslate()
// ====================
// wxDC / wxGCDC tests
// ====================
class TransformMatrixTestCaseDCBase : public CppUnit::TestCase
{
wxBitmap bmpUsingMatrix(m_bmpOrig.GetWidth(), m_bmpOrig.GetHeight());
// build the mirrored image using the transformation matrix
public:
TransformMatrixTestCaseDCBase()
{
wxMemoryDC dc(bmpUsingMatrix);
if ( !dc.CanUseTransformMatrix() )
return;
wxAffineMatrix2D matrix;
matrix.Mirror(wxVERTICAL);
matrix.Translate(0, -m_bmpOrig.GetHeight() + 1);
dc.SetTransformMatrix(matrix);
dc.DrawBitmap(m_bmpOrig, 0, 0);
m_dc = NULL;
wxImage::AddHandler(new wxJPEGHandler);
m_imgOrig.LoadFile(wxS("horse.jpg"));
CPPUNIT_ASSERT( m_imgOrig.IsOk() );
}
CPPUNIT_ASSERT_EQUAL( bmpUsingMatrix.ConvertToImage(),
virtual ~TransformMatrixTestCaseDCBase()
{
}
virtual void setUp()
{
m_bmpOrig = wxBitmap(m_imgOrig);
m_bmpUsingMatrix.Create(m_bmpOrig.GetSize(), m_bmpOrig.GetDepth());
}
protected:
virtual void FlushDC() = 0;
void VMirrorAndTranslate();
void Rotate90Clockwise();
#if wxUSE_GRAPHICS_CONTEXT
void CompareToGraphicsContext();
#endif // wxUSE_GRAPHICS_CONTEXT
protected:
wxImage m_imgOrig;
wxBitmap m_bmpOrig;
wxBitmap m_bmpUsingMatrix;
wxDC* m_dc;
wxDECLARE_NO_COPY_CLASS(TransformMatrixTestCaseDCBase);
};
// ===========
// wxDC tests
// ===========
class TransformMatrixTestCaseDC : public TransformMatrixTestCaseDCBase
{
public:
TransformMatrixTestCaseDC()
{
m_dc = &m_mdc;
}
virtual ~TransformMatrixTestCaseDC()
{
}
virtual void setUp() wxOVERRIDE
{
TransformMatrixTestCaseDCBase::setUp();
m_mdc.SelectObject(m_bmpUsingMatrix);
}
virtual void tearDown() wxOVERRIDE
{
m_mdc.SelectObject(wxNullBitmap);
TransformMatrixTestCaseDCBase::tearDown();
}
protected:
virtual void FlushDC() wxOVERRIDE {}
private:
CPPUNIT_TEST_SUITE( TransformMatrixTestCaseDC );
CPPUNIT_TEST( VMirrorAndTranslate );
CPPUNIT_TEST( Rotate90Clockwise );
#if wxUSE_GRAPHICS_CONTEXT
CPPUNIT_TEST( CompareToGraphicsContext );
#endif // wxUSE_GRAPHICS_CONTEXT
CPPUNIT_TEST_SUITE_END();
protected:
wxMemoryDC m_mdc;
wxDECLARE_NO_COPY_CLASS(TransformMatrixTestCaseDC);
};
// register in the unnamed registry so that these tests are run by default
CPPUNIT_TEST_SUITE_REGISTRATION( TransformMatrixTestCaseDC );
// also include in it's own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TransformMatrixTestCaseDC, "TransformMatrixTestCaseDC" );
#if wxUSE_GRAPHICS_CONTEXT
// =============
// wxGCDC tests
// =============
class TransformMatrixTestCaseGCDC : public TransformMatrixTestCaseDC
{
public:
TransformMatrixTestCaseGCDC() {}
virtual ~TransformMatrixTestCaseGCDC() {}
virtual void setUp() wxOVERRIDE
{
TransformMatrixTestCaseDC::setUp();
m_gcdc = new wxGCDC(m_mdc);
m_dc = m_gcdc;
wxGraphicsContext* ctx = m_gcdc->GetGraphicsContext();
ctx->SetAntialiasMode(wxANTIALIAS_NONE);
}
virtual void tearDown() wxOVERRIDE
{
delete m_gcdc;
TransformMatrixTestCaseDC::tearDown();
}
protected:
virtual void FlushDC() wxOVERRIDE
{
m_gcdc->GetGraphicsContext()->Flush();
}
private:
CPPUNIT_TEST_SUITE( TransformMatrixTestCaseGCDC );
CPPUNIT_TEST( VMirrorAndTranslate );
CPPUNIT_TEST( Rotate90Clockwise );
CPPUNIT_TEST_SUITE_END();
protected:
wxGCDC* m_gcdc;
wxDECLARE_NO_COPY_CLASS(TransformMatrixTestCaseGCDC);
};
// For MSW we have individual test cases for each graphics renderer
// so we don't need to test wxGCDC with default renderer.
#ifndef __WXMSW__
// register in the unnamed registry so that these tests are run by default
CPPUNIT_TEST_SUITE_REGISTRATION( TransformMatrixTestCaseGCDC );
// also include in it's own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TransformMatrixTestCaseGCDC, "TransformMatrixTestCaseGCDC" );
#endif // !__WXMSW__
#ifdef __WXMSW__
// GDI+ and Direct2D are available only under MSW.
#if wxUSE_GRAPHICS_GDIPLUS
class TransformMatrixTestCaseGCDCGDIPlus : public TransformMatrixTestCaseGCDC
{
public:
TransformMatrixTestCaseGCDCGDIPlus() {}
virtual ~TransformMatrixTestCaseGCDCGDIPlus() {}
virtual void setUp() wxOVERRIDE
{
TransformMatrixTestCaseGCDC::setUp();
wxGraphicsRenderer* rend = wxGraphicsRenderer::GetGDIPlusRenderer();
wxGraphicsContext* ctx = rend->CreateContext(m_mdc);
m_gcdc->SetGraphicsContext(ctx);
}
private:
CPPUNIT_TEST_SUITE( TransformMatrixTestCaseGCDCGDIPlus );
CPPUNIT_TEST( VMirrorAndTranslate );
CPPUNIT_TEST( Rotate90Clockwise );
CPPUNIT_TEST_SUITE_END();
protected:
wxDECLARE_NO_COPY_CLASS(TransformMatrixTestCaseGCDCGDIPlus);
};
// register in the unnamed registry so that these tests are run by default
CPPUNIT_TEST_SUITE_REGISTRATION( TransformMatrixTestCaseGCDCGDIPlus );
// also include in it's own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TransformMatrixTestCaseGCDCGDIPlus, "TransformMatrixTestCaseGCDCGDIPlus" );
#endif // wxUSE_GRAPHICS_GDIPLUS
#if wxUSE_GRAPHICS_DIRECT2D
class TransformMatrixTestCaseGCDCDirect2D : public TransformMatrixTestCaseGCDC
{
public:
TransformMatrixTestCaseGCDCDirect2D() {}
virtual ~TransformMatrixTestCaseGCDCDirect2D() {}
virtual void setUp() wxOVERRIDE
{
TransformMatrixTestCaseGCDC::setUp();
wxGraphicsRenderer* rend = wxGraphicsRenderer::GetDirect2DRenderer();
wxGraphicsContext* ctx = rend->CreateContext(m_mdc);
m_gcdc->SetGraphicsContext(ctx);
}
virtual void FlushDC()
{
// Apparently, flushing native Direct2D renderer
// is not enough to update underlying DC (bitmap)
// and therefore we have to destroy the renderer
// to do so.
TransformMatrixTestCaseGCDC::FlushDC();
m_gcdc->SetGraphicsContext(NULL);
}
private:
CPPUNIT_TEST_SUITE( TransformMatrixTestCaseGCDCDirect2D );
CPPUNIT_TEST( VMirrorAndTranslate );
CPPUNIT_TEST( Rotate90Clockwise );
CPPUNIT_TEST_SUITE_END();
protected:
wxDECLARE_NO_COPY_CLASS(TransformMatrixTestCaseGCDCDirect2D);
};
// register in the unnamed registry so that these tests are run by default
CPPUNIT_TEST_SUITE_REGISTRATION( TransformMatrixTestCaseGCDCDirect2D );
// also include in it's own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TransformMatrixTestCaseGCDCDirect2D, "TransformMatrixTestCaseGCDCDirect2D" );
#endif // wxUSE_GRAPHICS_DIRECT2D
#endif // __WXMSW__
#if wxUSE_CAIRO
class TransformMatrixTestCaseGCDCCairo : public TransformMatrixTestCaseGCDC
{
public:
TransformMatrixTestCaseGCDCCairo() {}
virtual ~TransformMatrixTestCaseGCDCCairo() {}
virtual void setUp() wxOVERRIDE
{
TransformMatrixTestCaseGCDC::setUp();
wxGraphicsRenderer* rend = wxGraphicsRenderer::GetCairoRenderer();
wxGraphicsContext* ctx = rend->CreateContext(m_mdc);
m_gcdc->SetGraphicsContext(ctx);
}
private:
CPPUNIT_TEST_SUITE( TransformMatrixTestCaseGCDCCairo );
CPPUNIT_TEST( VMirrorAndTranslate );
CPPUNIT_TEST( Rotate90Clockwise );
CPPUNIT_TEST_SUITE_END();
protected:
wxDECLARE_NO_COPY_CLASS(TransformMatrixTestCaseGCDCCairo);
};
// register in the unnamed registry so that these tests are run by default
CPPUNIT_TEST_SUITE_REGISTRATION( TransformMatrixTestCaseGCDCCairo );
// also include in it's own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TransformMatrixTestCaseGCDCCairo, "TransformMatrixTestCaseGCDCCairo" );
#endif // wxUSE_CAIRO
#endif // wxUSE_GRAPHICS_CONTEXT
void TransformMatrixTestCaseDCBase::VMirrorAndTranslate()
{
// build the mirrored image using the transformation matrix
if ( !m_dc->CanUseTransformMatrix() )
return;
wxAffineMatrix2D matrix;
matrix.Mirror(wxVERTICAL);
// For wxDC pixel center is at (0, 0) so row 0 of the bitmap is the axis
// of mirroring and it is left intact by the transformation. In this case
// mirrored bitmap needs to be shifted by dim-1 pixels.
// For wxGCDC pixel center of underlying wxGraphicsContext is at (0.5, 0.5)
// so the axis of mirroring is above row 0 of the bitmap and this row
// is affected by the transformation. In this case mirrored bitmap
// needs to be shifthed by dim pixels.
int ty;
if ( m_dc->GetGraphicsContext() )
ty = m_bmpOrig.GetHeight();
else
ty = m_bmpOrig.GetHeight() - 1;
matrix.Translate(0, -ty);
m_dc->SetTransformMatrix(matrix);
m_dc->DrawBitmap(m_bmpOrig, 0, 0);
FlushDC();
CPPUNIT_ASSERT_EQUAL( m_bmpUsingMatrix.ConvertToImage(),
m_imgOrig.Mirror(false) );
}
void AffineTransformTestCase::Rotate90Clockwise()
void TransformMatrixTestCaseDCBase::Rotate90Clockwise()
{
wxBitmap bmpUsingMatrix(m_bmpOrig.GetHeight(), m_bmpOrig.GetWidth());
// build the rotated image using the transformation matrix
{
wxMemoryDC dc(bmpUsingMatrix);
if ( !m_dc->CanUseTransformMatrix() )
return;
if ( !dc.CanUseTransformMatrix() )
return;
wxAffineMatrix2D matrix;
matrix.Rotate(0.5 * M_PI);
matrix.Translate(0, -m_bmpOrig.GetHeight());
m_dc->SetTransformMatrix(matrix);
m_dc->DrawBitmap(m_bmpOrig, 0, 0);
FlushDC();
wxAffineMatrix2D matrix;
matrix.Rotate(0.5 * M_PI);
matrix.Translate(0, -m_bmpOrig.GetHeight());
dc.SetTransformMatrix(matrix);
dc.DrawBitmap(m_bmpOrig, 0, 0);
}
CPPUNIT_ASSERT_EQUAL( bmpUsingMatrix.ConvertToImage(),
CPPUNIT_ASSERT_EQUAL( m_bmpUsingMatrix.ConvertToImage(),
m_imgOrig.Rotate90(true) );
}
#if wxUSE_GRAPHICS_CONTEXT
void AffineTransformTestCase::CompareToGraphicsContext()
void TransformMatrixTestCaseDCBase::CompareToGraphicsContext()
{
wxPoint2DDouble pointA1(1.0, 3.0), pointA2(60.0, 50.0),
pointG1(1.0, 3.0), pointG2(60.0, 50.0);
@@ -170,7 +423,7 @@ void AffineTransformTestCase::CompareToGraphicsContext()
matrixA1.Invert();
// Create image using first matrix
wxBitmap bmpUsingMatrixA1(m_bmpOrig.GetHeight(), m_bmpOrig.GetWidth());
wxBitmap bmpUsingMatrixA1(m_bmpOrig.GetSize(), m_bmpOrig.GetDepth());
// Build the transformed image using the transformation matrix
{
@@ -193,9 +446,19 @@ void AffineTransformTestCase::CompareToGraphicsContext()
// Create graphics matrix and transform it
wxGraphicsRenderer* r;
if ( m_dc->GetGraphicsContext() )
{
r = m_dc->GetGraphicsContext()->GetRenderer();
}
else
{
r = wxGraphicsRenderer::GetDefaultRenderer();
}
wxBitmap bmp(10, 10);
wxMemoryDC mDc(bmp);
wxGraphicsContext* gDc = wxGraphicsContext::Create(mDc);
wxGraphicsContext* gDc = r->CreateContext(mDc);
wxGraphicsMatrix matrixG1 = gDc->CreateMatrix();
wxGraphicsMatrix matrixG2 = gDc->CreateMatrix();
matrixG2.Rotate(M_PI / 3);