Add tests of retrieving sub-bitmaps
This commit is contained in:
Artur Wieczorek
parent
66526adf7a
commit
96cb3b6714
@ -30,6 +30,12 @@
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CHECK( (int)g == (int)c.Green() ); \
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CHECK( (int)g == (int)c.Green() ); \
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CHECK( (int)b == (int)c.Blue() )
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CHECK( (int)b == (int)c.Blue() )
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#define ASSERT_EQUAL_RGBA(c, r, g, b, a) \
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CHECK( (int)r == (int)c.Red() ); \
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CHECK( (int)g == (int)c.Green() ); \
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CHECK( (int)b == (int)c.Blue() ); \
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CHECK( (int)a == (int)c.Alpha() )
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#ifdef __WXMSW__
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#ifdef __WXMSW__
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// Support for iteration over 32 bpp 0RGB bitmaps
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// Support for iteration over 32 bpp 0RGB bitmaps
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typedef wxPixelFormat<unsigned char, 32, 2, 1, 0> wxNative32PixelFormat;
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typedef wxPixelFormat<unsigned char, 32, 2, 1, 0> wxNative32PixelFormat;
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@ -584,4 +590,329 @@ TEST_CASE("BitmapTestCase::DrawAlphaWithMask", "[bitmap][draw][alpha][withmask]"
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#endif // __WXMSW__ || __WXOSX__
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#endif // __WXMSW__ || __WXOSX__
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}
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}
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TEST_CASE("BitmapTestCase::SubBitmapNonAlpha", "[bitmap][subbitmap][nonalpha]")
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{
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const int w = 16;
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const int h = 16;
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const wxColour clrTopLeft(*wxBLUE);
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const wxColour clrTopRight(*wxRED);
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const wxColour clrBottomLeft(*wxGREEN);
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const wxColour clrBottomRight(*wxCYAN);
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// Bitmap
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wxBitmap bmp(w, h, 24);
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{
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wxMemoryDC dc(bmp);
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dc.SetPen(wxPen(clrTopLeft));
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dc.SetBrush(wxBrush(clrTopLeft));
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dc.DrawRectangle(0, 0, w / 2, h / 2);
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dc.SetPen(wxPen(clrTopRight));
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dc.SetBrush(wxBrush(clrTopRight));
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dc.DrawRectangle(w / 2, 0, w / 2, h / 2);
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dc.SetPen(wxPen(clrBottomLeft));
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dc.SetBrush(wxBrush(clrBottomLeft));
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dc.DrawRectangle(0, h / 2, w / 2, h / 2);
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dc.SetPen(wxPen(clrBottomRight));
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dc.SetBrush(wxBrush(clrBottomRight));
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dc.DrawRectangle(w / 2, h / 2, w / 2, h / 2);
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}
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REQUIRE_FALSE(bmp.HasAlpha());
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REQUIRE(bmp.GetMask() == NULL);
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// Get sub bitmap
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wxBitmap subBmp = bmp.GetSubBitmap(wxRect(w/4, h/4, w/2, h/2));
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// Check sub bitmap attributes
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REQUIRE(subBmp.GetWidth() == w/2);
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REQUIRE(subBmp.GetHeight() == h/2);
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REQUIRE(subBmp.GetDepth() == bmp.GetDepth());
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REQUIRE(subBmp.HasAlpha() == bmp.HasAlpha());
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REQUIRE((subBmp.GetMask() == NULL) == (bmp.GetMask() == NULL));
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const int w2 = w / 2;
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const int h2 = h / 2;
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// Check sub bitmap pixels
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wxNativePixelData data(subBmp);
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REQUIRE(data);
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wxNativePixelData::Iterator p(data);
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p.OffsetY(data, h2 / 4);
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wxNativePixelData::Iterator rowStart = p;
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p.OffsetX(data, w2 / 4); // top-left point
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ASSERT_EQUAL_RGB(p, clrTopLeft.Red(), clrTopLeft.Green(), clrTopLeft.Blue());
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p.OffsetX(data, w2 / 2); // top-right point
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ASSERT_EQUAL_RGB(p, clrTopRight.Red(), clrTopRight.Green(), clrTopRight.Blue());
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p = rowStart;
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p.OffsetY(data, h2 / 2);
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p.OffsetX(data, w2 / 4); // bottom-left point
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ASSERT_EQUAL_RGB(p, clrBottomLeft.Red(), clrBottomLeft.Green(), clrBottomLeft.Blue());
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p.OffsetX(data, w2 / 2); // bottom-right point
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ASSERT_EQUAL_RGB(p, clrBottomRight.Red(), clrBottomRight.Green(), clrBottomRight.Blue());
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}
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TEST_CASE("BitmapTestCase::SubBitmapNonAlphaWithMask", "[bitmap][subbitmap][nonalpha][withmask]")
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{
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const int w = 16;
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const int h = 16;
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// Mask
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wxBitmap bmpMask = GetMask(w, h);
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const wxColour clrTopLeft(*wxBLUE);
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const wxColour clrTopRight(*wxRED);
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const wxColour clrBottomLeft(*wxGREEN);
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const wxColour clrBottomRight(*wxCYAN);
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// Bitmap
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wxBitmap bmp(w, h, 24);
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{
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wxMemoryDC dc(bmp);
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dc.SetPen(wxPen(clrTopLeft));
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dc.SetBrush(wxBrush(clrTopLeft));
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dc.DrawRectangle(0, 0, w / 2, h / 2);
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dc.SetPen(wxPen(clrTopRight));
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dc.SetBrush(wxBrush(clrTopRight));
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dc.DrawRectangle(w / 2, 0, w / 2, h / 2);
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dc.SetPen(wxPen(clrBottomLeft));
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dc.SetBrush(wxBrush(clrBottomLeft));
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dc.DrawRectangle(0, h / 2, w / 2, h / 2);
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dc.SetPen(wxPen(clrBottomRight));
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dc.SetBrush(wxBrush(clrBottomRight));
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dc.DrawRectangle(w / 2, h / 2, w / 2, h / 2);
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}
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REQUIRE_FALSE(bmp.HasAlpha());
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REQUIRE(bmp.GetMask() == NULL);
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bmp.SetMask(new wxMask(bmpMask));
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REQUIRE_FALSE(bmp.HasAlpha());
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REQUIRE(bmp.GetMask() != NULL);
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// Get sub bitmap
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wxBitmap subBmp = bmp.GetSubBitmap(wxRect(w/4, h/4, w/2, h/2));
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const int w2 = w / 2;
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const int h2 = h / 2;
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// Check sub bitmap attributes
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REQUIRE(subBmp.GetWidth() == w2);
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REQUIRE(subBmp.GetHeight() == h2);
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REQUIRE(subBmp.GetDepth() == bmp.GetDepth());
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REQUIRE(subBmp.HasAlpha() == bmp.HasAlpha());
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REQUIRE((subBmp.GetMask() == NULL) == (bmp.GetMask() == NULL));
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// Check sub bitmap pixels
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{
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wxNativePixelData data(subBmp);
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REQUIRE(data);
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wxNativePixelData::Iterator p(data);
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p.OffsetY(data, h2 / 4);
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wxNativePixelData::Iterator rowStart = p;
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p.OffsetX(data, w2 / 4); // top-left point
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ASSERT_EQUAL_RGB(p, clrTopLeft.Red(), clrTopLeft.Green(), clrTopLeft.Blue());
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p.OffsetX(data, w2 / 2); // top-right point
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ASSERT_EQUAL_RGB(p, clrTopRight.Red(), clrTopRight.Green(), clrTopRight.Blue());
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p = rowStart;
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p.OffsetY(data, h2 / 2);
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p.OffsetX(data, w2 / 4); // bottom-left point
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ASSERT_EQUAL_RGB(p, clrBottomLeft.Red(), clrBottomLeft.Green(), clrBottomLeft.Blue());
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p.OffsetX(data, w2 / 2); // bottom-right point
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ASSERT_EQUAL_RGB(p, clrBottomRight.Red(), clrBottomRight.Green(), clrBottomRight.Blue());
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}
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// Check sub bitmap mask
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wxColour maskClrTopLeft;
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wxColour maskClrTopRight;
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wxColour maskClrBottomLeft;
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wxColour maskClrBottomRight;
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// Fetch sample original mask pixels
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{
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wxNativePixelData data(bmpMask);
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REQUIRE(data);
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wxNativePixelData::Iterator p(data);
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p.OffsetY(data, h / 4);
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wxNativePixelData::Iterator rowStart = p;
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p.OffsetX(data, w / 4); // top-left point
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maskClrTopLeft = wxColour(p.Red(), p.Green(), p.Blue());
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p.OffsetX(data, w / 2); // top-right point
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maskClrTopRight = wxColour(p.Red(), p.Green(), p.Blue());
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p = rowStart;
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p.OffsetY(data, h / 2);
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p.OffsetX(data, w / 4); // bottom-left point
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maskClrBottomLeft = wxColour(p.Red(), p.Green(), p.Blue());
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p.OffsetX(data, w / 2); // bottom-right point
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maskClrBottomRight = wxColour(p.Red(), p.Green(), p.Blue());
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}
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CHECK(maskClrTopLeft == *wxWHITE);
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CHECK(maskClrTopRight == *wxWHITE);
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CHECK(maskClrBottomLeft == *wxBLACK);
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CHECK(maskClrBottomRight == *wxBLACK);
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wxBitmap subBmpMask = subBmp.GetMask()->GetBitmap();
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// Check sub bitmap mask attributes
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REQUIRE(subBmpMask.GetWidth() == subBmp.GetWidth());
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REQUIRE(subBmpMask.GetHeight() == subBmp.GetHeight());
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#if !defined(__WXOSX__)
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REQUIRE(subBmpMask.GetDepth() == 1);
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#endif // !__WXOSX__
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REQUIRE_FALSE(subBmpMask.HasAlpha());
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REQUIRE_FALSE(subBmpMask.GetMask());
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// Check sub bitmap mask pixels
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{
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wxNativePixelData data(subBmpMask);
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REQUIRE(data);
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wxNativePixelData::Iterator p(data);
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p.OffsetY(data, h2 / 4);
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wxNativePixelData::Iterator rowStart = p;
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p.OffsetX(data, w2 / 4); // top-left point
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ASSERT_EQUAL_RGB(p, maskClrTopLeft.Red(), maskClrTopLeft.Green(), maskClrTopLeft.Blue());
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p.OffsetX(data, w2 / 2); // top-right point
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ASSERT_EQUAL_RGB(p, maskClrTopRight.Red(), maskClrTopRight.Green(), maskClrTopRight.Blue());
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p = rowStart;
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p.OffsetY(data, h2 / 2);
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p.OffsetX(data, w2 / 4); // bottom-left point
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ASSERT_EQUAL_RGB(p, maskClrBottomLeft.Red(), maskClrBottomLeft.Green(), maskClrBottomLeft.Blue());
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p.OffsetX(data, w2 / 2); // bottom-right point
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ASSERT_EQUAL_RGB(p, maskClrBottomRight.Red(), maskClrBottomRight.Green(), maskClrBottomRight.Blue());
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}
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}
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TEST_CASE("BitmapTestCase::SubBitmapAlphaWithMask", "[bitmap][subbitmap][alpha][withmask]")
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{
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const int w = 16;
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const int h = 16;
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// Mask
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wxBitmap bmpMask = GetMask(w, h);
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// Bitmap
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const wxColour clrLeft(*wxCYAN);
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const unsigned char alpha = 92;
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#if defined(__WXMSW__) || defined(__WXOSX__)
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// premultiplied values
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const wxColour clrRight(((clrLeft.Red() * alpha) + 127) / 255, ((clrLeft.Green() * alpha) + 127) / 255, ((clrLeft.Blue() * alpha) + 127) / 255, alpha);
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#else
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const wxColour clrRight(clrLeft.Red(), clrLeft.Green(), clrLeft.Blue(), alpha);
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#endif // __WXMSW__ || __WXOSX__
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wxBitmap bmp(w, h, 32);
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#if defined(__WXMSW__) || defined(__WXOSX__)
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bmp.UseAlpha();
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#endif // __WXMSW__ || __WXOSX__
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{
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wxAlphaPixelData data(bmp);
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REQUIRE(data);
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wxAlphaPixelData::Iterator p(data);
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for ( int y = 0; y < h; y++)
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{
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wxAlphaPixelData::Iterator rowStart = p;
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for ( int x = 0; x < w; x++, ++p )
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{
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if ( x < w / 2 )
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{ // opaque
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p.Red() = clrLeft.Red();
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p.Green() = clrLeft.Green();
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p.Blue() = clrLeft.Blue();
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p.Alpha() = clrLeft.Alpha();
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}
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else
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{ // with transparency
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p.Red() = clrRight.Red();
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p.Green() = clrRight.Green();
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p.Blue() = clrRight.Blue();
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p.Alpha() = clrRight.Alpha();
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}
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}
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p = rowStart;
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p.OffsetY(data, 1);
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}
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}
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REQUIRE(bmp.HasAlpha());
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REQUIRE(!bmp.GetMask());
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bmp.SetMask(new wxMask(bmpMask));
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REQUIRE(bmp.HasAlpha());
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REQUIRE(bmp.GetMask());
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// Get sub bitmap
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wxBitmap subBmp = bmp.GetSubBitmap(wxRect(w/4, h/4, w/2, h/2));
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const int w2 = w / 2;
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const int h2 = h / 2;
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// Check sub bitmap attributes
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REQUIRE(subBmp.GetWidth() == w2);
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REQUIRE(subBmp.GetHeight() == h2);
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REQUIRE(subBmp.GetDepth() == bmp.GetDepth());
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REQUIRE(subBmp.HasAlpha() == bmp.HasAlpha());
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REQUIRE((subBmp.GetMask() == NULL) == (bmp.GetMask() == NULL));
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// Check sub bitmap pixels
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{
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wxAlphaPixelData data(subBmp);
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REQUIRE(data);
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wxAlphaPixelData::Iterator p(data);
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p.OffsetY(data, h2 / 4);
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wxAlphaPixelData::Iterator rowStart = p;
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p.OffsetX(data, w2 / 4); // top-left point
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ASSERT_EQUAL_RGBA(p, clrLeft.Red(), clrLeft.Green(), clrLeft.Blue(), clrLeft.Alpha());
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p.OffsetX(data, w2 / 2); // top-right point
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ASSERT_EQUAL_RGBA(p, clrRight.Red(), clrRight.Green(), clrRight.Blue(), clrRight.Alpha());
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p = rowStart;
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p.OffsetY(data, h2 / 2);
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p.OffsetX(data, w2 / 4); // bottom-left point
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ASSERT_EQUAL_RGBA(p, clrLeft.Red(), clrLeft.Green(), clrLeft.Blue(), clrLeft.Alpha());
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p.OffsetX(data, w2 / 2); // bottom-right point
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ASSERT_EQUAL_RGBA(p, clrRight.Red(), clrRight.Green(), clrRight.Blue(), clrRight.Alpha());
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}
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// Check sub bitmap mask
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wxColour maskClrTopLeft;
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wxColour maskClrTopRight;
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wxColour maskClrBottomLeft;
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wxColour maskClrBottomRight;
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// Fetch sample original mask pixels
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{
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wxNativePixelData data(bmpMask);
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REQUIRE(data);
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wxNativePixelData::Iterator p(data);
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p.OffsetY(data, h / 4);
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wxNativePixelData::Iterator rowStart = p;
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p.OffsetX(data, w / 4); // top-left point
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maskClrTopLeft = wxColour(p.Red(), p.Green(), p.Blue());
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p.OffsetX(data, w / 2); // top-right point
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maskClrTopRight = wxColour(p.Red(), p.Green(), p.Blue());
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p = rowStart;
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p.OffsetY(data, h / 2);
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p.OffsetX(data, w / 4); // bottom-left point
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maskClrBottomLeft = wxColour(p.Red(), p.Green(), p.Blue());
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p.OffsetX(data, w / 2); // bottom-right point
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maskClrBottomRight = wxColour(p.Red(), p.Green(), p.Blue());
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}
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CHECK(maskClrTopLeft == *wxWHITE);
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CHECK(maskClrTopRight == *wxWHITE);
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CHECK(maskClrBottomLeft == *wxBLACK);
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CHECK(maskClrBottomRight == *wxBLACK);
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wxBitmap subBmpMask = subBmp.GetMask()->GetBitmap();
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// Check sub bitmap mask attributes
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REQUIRE(subBmpMask.GetWidth() == subBmp.GetWidth());
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REQUIRE(subBmpMask.GetHeight() == subBmp.GetHeight());
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#if !defined(__WXOSX__)
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REQUIRE(subBmpMask.GetDepth() == 1);
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#endif // !__WXOSX__
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REQUIRE_FALSE(subBmpMask.HasAlpha());
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REQUIRE_FALSE(subBmpMask.GetMask());
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// Check sub bitmap mask pixels
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{
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wxNativePixelData data(subBmpMask);
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REQUIRE(data);
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wxNativePixelData::Iterator p(data);
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|
p.OffsetY(data, h2 / 4);
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wxNativePixelData::Iterator rowStart = p;
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p.OffsetX(data, w2 / 4); // top-left point
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ASSERT_EQUAL_RGB(p, maskClrTopLeft.Red(), maskClrTopLeft.Green(), maskClrTopLeft.Blue());
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p.OffsetX(data, w2 / 2); // top-right point
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ASSERT_EQUAL_RGB(p, maskClrTopRight.Red(), maskClrTopRight.Green(), maskClrTopRight.Blue());
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||||||
|
p = rowStart;
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|
p.OffsetY(data, h2 / 2);
|
||||||
|
p.OffsetX(data, w2 / 4); // bottom-left point
|
||||||
|
ASSERT_EQUAL_RGB(p, maskClrBottomLeft.Red(), maskClrBottomLeft.Green(), maskClrBottomLeft.Blue());
|
||||||
|
p.OffsetX(data, w2 / 2); // bottom-right point
|
||||||
|
ASSERT_EQUAL_RGB(p, maskClrBottomRight.Red(), maskClrBottomRight.Green(), maskClrBottomRight.Blue());
|
||||||
|
}
|
||||||
|
}
|
||||||
#endif //wxHAS_RAW_BITMAP
|
#endif //wxHAS_RAW_BITMAP
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user