| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: tests/image/rawbmp.cpp |
| 3 | // Purpose: Test for using raw bitmap access classes with wxImage |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Created: 2008-05-30 |
| 6 | // RCS-ID: $Id$ |
| 7 | // Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org> |
| 8 | // Licence: wxWindows licence |
| 9 | /////////////////////////////////////////////////////////////////////////////// |
| 10 | |
| 11 | // ---------------------------------------------------------------------------- |
| 12 | // headers |
| 13 | // ---------------------------------------------------------------------------- |
| 14 | |
| 15 | #include "testprec.h" |
| 16 | |
| 17 | #ifdef __BORLANDC__ |
| 18 | #pragma hdrstop |
| 19 | #endif |
| 20 | |
| 21 | #ifdef wxHAS_RAW_BITMAP |
| 22 | |
| 23 | #ifndef WX_PRECOMP |
| 24 | #endif // WX_PRECOMP |
| 25 | |
| 26 | #include "wx/image.h" |
| 27 | #include "wx/rawbmp.h" |
| 28 | |
| 29 | namespace |
| 30 | { |
| 31 | const int WIDTH = 10; |
| 32 | const int HEIGHT = 10; |
| 33 | } |
| 34 | |
| 35 | #define ASSERT_COL_EQUAL(x, y) \ |
| 36 | CPPUNIT_ASSERT_EQUAL( (unsigned char)(x), (y) ) |
| 37 | |
| 38 | // ---------------------------------------------------------------------------- |
| 39 | // test class |
| 40 | // ---------------------------------------------------------------------------- |
| 41 | |
| 42 | class ImageRawTestCase : public CppUnit::TestCase |
| 43 | { |
| 44 | public: |
| 45 | ImageRawTestCase() { } |
| 46 | |
| 47 | private: |
| 48 | CPPUNIT_TEST_SUITE( ImageRawTestCase ); |
| 49 | CPPUNIT_TEST( RGBImage ); |
| 50 | CPPUNIT_TEST_SUITE_END(); |
| 51 | |
| 52 | void RGBImage(); |
| 53 | |
| 54 | DECLARE_NO_COPY_CLASS(ImageRawTestCase) |
| 55 | }; |
| 56 | |
| 57 | CPPUNIT_TEST_SUITE_REGISTRATION( ImageRawTestCase ); |
| 58 | CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( ImageRawTestCase, "ImageRawTestCase" ); |
| 59 | |
| 60 | void ImageRawTestCase::RGBImage() |
| 61 | { |
| 62 | // create a check board image |
| 63 | wxImage image(WIDTH, HEIGHT); |
| 64 | |
| 65 | wxImagePixelData data(image); |
| 66 | wxImagePixelData::Iterator p(data); |
| 67 | for ( int y = 0; y < HEIGHT; y++ ) |
| 68 | { |
| 69 | const wxImagePixelData::Iterator rowStart = p; |
| 70 | |
| 71 | for ( int x = 0; x < WIDTH; x++ ) |
| 72 | { |
| 73 | p.Red() = |
| 74 | p.Green() = |
| 75 | p.Blue() = (x + y) % 2 ? 0 : -1; |
| 76 | ++p; |
| 77 | } |
| 78 | |
| 79 | p = rowStart; |
| 80 | p.OffsetY(data, 1); |
| 81 | } |
| 82 | |
| 83 | // test a few pixels |
| 84 | ASSERT_COL_EQUAL( 0xff, image.GetRed(0, 0) ); |
| 85 | ASSERT_COL_EQUAL( 0xff, image.GetBlue(1, 1) ); |
| 86 | ASSERT_COL_EQUAL( 0, image.GetGreen(0, 1) ); |
| 87 | ASSERT_COL_EQUAL( 0, image.GetGreen(1, 0) ); |
| 88 | } |
| 89 | |
| 90 | #endif // wxHAS_RAW_BITMAP |