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