Signed-off-by: Zhiyi Zhang zzhang@codeweavers.com --- I'm not sure the tests should be in tests/dib.c. The framework in dib.c hashes results and compares them. I don't think that's going to help us figuring out the exact HALFTONE algorithm details with the results being hashes. Also, the tests that succeed have all input pixels has the same value. So if I only add the tests that succeed, it provides little value. The tests here are mostly for helping figuring out the algorithm in the future. Since the actual Wine implementation in the previous patch uses a different approach. It doesn't reproduce identical results. So if you feel that such tests are not necessary, you can drop this.
dlls/gdi32/tests/bitmap.c | 1136 +++++++++++++++++++++++++++++++++++++ 1 file changed, 1136 insertions(+)
diff --git a/dlls/gdi32/tests/bitmap.c b/dlls/gdi32/tests/bitmap.c index fe3482671b2..c28dde8159b 100644 --- a/dlls/gdi32/tests/bitmap.c +++ b/dlls/gdi32/tests/bitmap.c @@ -57,6 +57,29 @@ static inline int get_dib_image_size( const BITMAPINFO *info ) * abs( info->bmiHeader.biHeight ); }
+static void dump_bits(int bpp, int width, const BYTE *expected, const BYTE *result, int size, + const char *comment) +{ + int i, stride; + + stride = get_dib_stride(width, bpp); + printf("%s expected:\n", comment); + for (i = 0; i < size; i++) + { + printf("%02x ", expected[i]); + if ((i + 1) % stride == 0) + printf("\n"); + } + printf("\n%s got:\n", comment); + for (i = 0; i < size; i++) + { + printf("%02x ", result[i]); + if ((i + 1) % stride == 0) + printf("\n"); + } + printf("\n"); +} + static void test_bitmap_info(HBITMAP hbm, INT expected_depth, const BITMAPINFOHEADER *bmih) { BITMAP bm; @@ -3426,6 +3449,1118 @@ static void test_StretchBlt(void) DeleteDC(hdcScreen); }
+static void test_StretchBlt_HALFTONE(void) +{ +#define PAD_ZERO 0x00, + + /* Same dimension */ + /* 1x1 -> 1x1 */ + static const unsigned char test_bits_0[] = + { + 0xff, 0x7f, 0x00, + }; + static const unsigned char expected_bits_0[] = + { + 0xff, 0x7f, 0x00, + }; + + /* Shrink horizontally */ + /* 2x1 -> 1x1 */ + /* 0xff / 2 = 0x7f.8, (0xff + 1) / 2 = 0x80 */ + static const unsigned char test_bits_1[] = + { + 0xff, 0xff, 0xff, 0x00, 0x01, 0x00, + }; + static const unsigned char expected_bits_1[] = + { + 0x7f, 0x80, 0x7f, + }; + static const unsigned char test_bits_2[] = + { + 0x00, 0x01, 0x00, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_2[] = + { + 0x7f, 0x80, 0x7f, + }; + + /* 3x1 -> 1x1 */ + /* 0xff / 3 = 0x55 */ + static const unsigned char test_bits_3[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + static const unsigned char expected_bits_3[] = + { + 0x54, 0x54, 0x54, + }; + static const unsigned char test_bits_4[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, + }; + static const unsigned char expected_bits_4[] = + { + 0x55, 0x55, 0x55, + }; + static const unsigned char test_bits_5[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_5[] = + { + 0x55, 0x55, 0x55, + }; + /* 0xff * 2 / 3 = 0xaa */ + static const unsigned char test_bits_6[] = + { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, + }; + static const unsigned char expected_bits_6[] = + { + 0xa9, 0xa9, 0xa9, + }; + static const unsigned char test_bits_7[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_7[] = + { + 0xa9, 0xa9, 0xa9, + }; + static const unsigned char test_bits_8[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_8[] = + { + 0xaa, 0xaa, 0xaa, + }; + static const unsigned char test_bits_9[] = + { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_9[] = + { + 0xff, 0xff, 0xff, + }; + + /* 4x1 -> 1x1 */ + /* 0xff * 3 / 4 = 0xbf.4 */ + static const unsigned char test_bits_10[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_10[] = + { + 0xbf, 0xbf, 0xbf, + }; + + /* 5x1 -> 1x1 */ + /* 0xff * 4 / 5 = 0xcc */ + static const unsigned char test_bits_11[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_11[] = + { + 0xcc, 0xcc, 0xcc, + }; + + /* Shrink horizontally with non-integer ratio */ + /* 3x1 -> 2x1 */ + static const unsigned char test_bits_12[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + static const unsigned char expected_bits_12[] = + { + 0xd4, 0xd4, 0xd4, 0x00, 0x00, 0x00, + }; + static const unsigned char test_bits_13[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, + }; + static const unsigned char expected_bits_13[] = + { + 0x55, 0x55, 0x55, 0x54, 0x54, 0x54, + }; + static const unsigned char test_bits_14[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_14[] = + { + 0x00, 0x00, 0x00, 0xd4, 0xd4, 0xd4, + }; + static const unsigned char test_bits_15[] = + { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, + }; + static const unsigned char expected_bits_15[] = + { + 0xff, 0xff, 0xff, 0x2a, 0x2a, 0x2a, + }; + static const unsigned char test_bits_16[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_16[] = + { + 0xa9, 0xa9, 0xa9, 0xaa, 0xaa, 0xaa, + }; + static const unsigned char test_bits_17[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_17[] = + { + 0x2a, 0x2a, 0x2a, 0xff, 0xff, 0xff, + }; + static const unsigned char test_bits_18[] = + { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_18[] = + { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + + /* 4x1 -> 3x1 */ + static const unsigned char test_bits_19[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_19[] = + { + 0x0f, 0x0f, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char test_bits_20[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, + }; + static const unsigned char expected_bits_20[] = + { + 0xcf, 0xcf, 0xcf, 0x7f, 0x7f, 0x7f, 0x2f, 0x2f, 0x2f, + }; + static const unsigned char test_bits_21[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_21[] = + { + 0x2f, 0x2f, 0x2f, 0x7f, 0x7f, 0x7f, 0xcf, 0xcf, 0xcf, + }; + static const unsigned char test_bits_22[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff + }; + static const unsigned char expected_bits_22[] = + { + 0xef, 0xef, 0xef, 0x00, 0x00, 0x00, 0xef, 0xef, 0xef, + }; + static const unsigned char test_bits_23[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, + }; + static const unsigned char expected_bits_23[] = + { + 0x0f, 0x0f, 0x0f, 0xff, 0xff, 0xff, 0x0f, 0x0f, 0x0f, + }; + + /* 5x1 -> 3x1 */ + static const unsigned char test_bits_24[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_24[] = + { + 0x3f, 0x3f, 0x3f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char test_bits_25[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, + }; + static const unsigned char expected_bits_25[] = + { + 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x65, 0x65, 0x65, + }; + static const unsigned char test_bits_26[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_26[] = + { + 0x98, 0x98, 0x98, 0x98, 0x98, 0x98, 0x99, 0x99, 0x99, + }; + + /* Shrink vertically */ + /* 1x2 -> 1x1 */ + /* 0xff / 2 = 0x7f.8, (0xff + 1) / 2 = 0x80 */ + static const unsigned char test_bits_27[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x01, 0x00, PAD_ZERO + }; + static const unsigned char expected_bits_27[] = + { + 0x7f, 0x80, 0x7f + }; + static const unsigned char test_bits_28[] = + { + 0x00, 0x01, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_28[] = + { + 0x7f, 0x80, 0x7f + }; + + /* 1x3 -> 1x1 */ + /* 0xff / 3 = 0x55 */ + static const unsigned char test_bits_29[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char expected_bits_29[] = + { + 0x55, 0x55, 0x55, + }; + static const unsigned char test_bits_30[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char expected_bits_30[] = + { + 0x55, 0x55, 0x55, + }; + static const unsigned char test_bits_31[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_31[] = + { + 0x54, 0x54, 0x54, + }; + /* 0xff * 2 / 3 = 0xaa */ + static const unsigned char test_bits_32[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char expected_bits_32[] = + { + 0xaa, 0xaa, 0xaa, + }; + static const unsigned char test_bits_33[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_33[] = + { + 0xa9, 0xa9, 0xa9, + }; + static const unsigned char test_bits_34[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_34[] = + { + 0xa9, 0xa9, 0xa9, + }; + static const unsigned char test_bits_35[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_35[] = + { + 0xff, 0xff, 0xff, + }; + + /* 1x4 -> 1x1 */ + /* 0xff * 3 / 4 = 0xbf.4 */ + static const unsigned char test_bits_36[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_36[] = + { + 0xbf, 0xbf, 0xbf, + }; + + /* 1x5 -> 1x1 */ + /* 0xff * 4 / 5 = 0xcc */ + static const unsigned char test_bits_37[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_37[] = + { + 0xcb, 0xcb, 0xcb, + }; + + /* Shrink vertically with a non-integer ratio */ + /* 3x1 -> 2x1 */ + static const unsigned char test_bits_38[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char expected_bits_38[] = + { + 0xd4, 0xd4, 0xd4, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char test_bits_39[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char expected_bits_39[] = + { + 0x54, 0x54, 0x54, PAD_ZERO + 0x55, 0x55, 0x55, PAD_ZERO + }; + static const unsigned char test_bits_40[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_40[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xd4, 0xd4, 0xd4, PAD_ZERO + }; + static const unsigned char test_bits_41[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char expected_bits_41[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0x2a, 0x2a, 0x2a, PAD_ZERO + }; + static const unsigned char test_bits_42[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_42[] = + { + 0xaa, 0xaa, 0xaa, PAD_ZERO + 0xa9, 0xa9, 0xa9, PAD_ZERO + }; + static const unsigned char test_bits_43[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_43[] = + { + 0x2a, 0x2a, 0x2a, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char test_bits_44[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_44[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + + /* 4x1 -> 3x1 */ + static const unsigned char test_bits_45[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_45[] = + { + 0x0f, 0x0f, 0x0f, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char test_bits_46[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char expected_bits_46[] = + { + 0xcf, 0xcf, 0xcf, PAD_ZERO + 0x7f, 0x7f, 0x7f, PAD_ZERO + 0x2f, 0x2f, 0x2f, PAD_ZERO + }; + static const unsigned char test_bits_47[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_47[] = + { + 0x2f, 0x2f, 0x2f, PAD_ZERO + 0x7f, 0x7f, 0x7f, PAD_ZERO + 0xcf, 0xcf, 0xcf, PAD_ZERO + }; + static const unsigned char test_bits_48[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_48[] = + { + 0xef, 0xef, 0xef, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xef, 0xef, 0xef, PAD_ZERO + }; + static const unsigned char test_bits_49[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char expected_bits_49[] = + { + 0x0f, 0x0f, 0x0f, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x0f, 0x0f, 0x0f, PAD_ZERO + }; + + /* 5x1 -> 3x1 */ + static const unsigned char test_bits_50[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_50[] = + { + 0x3f, 0x3f, 0x3f, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char test_bits_51[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char expected_bits_51[] = + { + 0x65, 0x65, 0x65, PAD_ZERO + 0x66, 0x66, 0x66, PAD_ZERO + 0x66, 0x66, 0x66, PAD_ZERO + }; + static const unsigned char test_bits_52[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_52[] = + { + 0x99, 0x99, 0x99, PAD_ZERO + 0x98, 0x98, 0x98, PAD_ZERO + 0x98, 0x98, 0x98, PAD_ZERO + }; + + /* Stretch horizontally */ + /* 1x1 -> 2x1 */ + static const unsigned char test_bits_53[] = + { + 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_53[] = + { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + /* 2x1 -> 3x1 */ + static const unsigned char test_bits_54[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_54[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, + }; + /* 3x1 -> 4x1 */ + static const unsigned char test_bits_55[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_55[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + /* 4x1 -> 5x1 */ + static const unsigned char test_bits_56[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_56[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + + /* Stretch vertically */ + /* 1x1 -> 1x2 */ + static const unsigned char test_bits_57[] = + { + 0xff, 0xff, 0xff, + }; + static const unsigned char expected_bits_57[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + /* 1x2 -> 1x3 */ + static const unsigned char test_bits_58[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_58[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + /* 1x3 -> 1x4 */ + static const unsigned char test_bits_59[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_59[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + /* 1x4 -> 1x5 */ + static const unsigned char test_bits_60[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char expected_bits_60[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + + /* Shrink both horizontally and vertically*/ + /* 2x2 -> 1x1 */ + /* 0xff / 4 = 0x3f.c */ + static const unsigned char test_bits_61[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_61[] = + { + 0x40, 0x40, 0x40, + }; + static const unsigned char test_bits_62[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_62[] = + { + 0x40, 0x40, 0x40, + }; + static const unsigned char test_bits_63[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_63[] = + { + 0x40, 0x40, 0x40, + }; + static const unsigned char test_bits_64[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_64[] = + { + 0x40, 0x40, 0x40, + }; + /* 0xff * 2 / 4 = 0x7f.8 */ + static const unsigned char test_bits_65[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_65[] = + { + 0x80, 0x80, 0x80, + }; + static const unsigned char test_bits_66[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_66[] = + { + 0x80, 0x80, 0x80, + }; + static const unsigned char test_bits_67[] = + { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_67[] = + { + 0xff, 0xff, 0xff, + }; + + /* Stretch horizontally and shrink vertically */ + /* 2x2 -> 1x4 */ + static const unsigned char test_bits_68[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_68[] = + { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + static const unsigned char test_bits_69[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_69[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff + }; + static const unsigned char test_bits_70[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_70[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + static const unsigned char test_bits_71[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_71[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + }; + static const unsigned char test_bits_72[] = + { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_72[] = + { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }; + static const unsigned char test_bits_73[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_73[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + /* 0xff * 2 / 4 = 0x7f.8 */ + static const unsigned char test_bits_74[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_74[] = + { + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80 + }; + static const unsigned char test_bits_75[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_75[] = + { + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80 + }; + static const unsigned char test_bits_76[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + 0xfe, 0xfe, 0xfe, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_76[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff + }; + /* 0xfe * 2 / 4 = 0x7f */ + static const unsigned char test_bits_77[] = + { + 0x00, 0x00, 0x00, 0xfe, 0xfe, 0xfe, PAD_ZERO PAD_ZERO + 0xfe, 0xfe, 0xfe, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_77[] = + { + 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f + }; + + /* Stretch vertically and shrink horizontally */ + /* 2x2 -> 4x1 */ + static const unsigned char test_bits_78[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_78[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char test_bits_79[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_79[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char test_bits_80[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_80[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char test_bits_81[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_81[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + static const unsigned char test_bits_82[] = + { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_82[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + static const unsigned char test_bits_83[] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_83[] = + { + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + }; + /* 0xff * 2 / 4 = 0x7f.8 */ + static const unsigned char test_bits_84[] = + { + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_84[] = + { + 0x80, 0x80, 0x80, PAD_ZERO + 0x80, 0x80, 0x80, PAD_ZERO + 0x80, 0x80, 0x80, PAD_ZERO + 0x80, 0x80, 0x80, PAD_ZERO + }; + static const unsigned char test_bits_85[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_85[] = + { + 0x80, 0x80, 0x80, PAD_ZERO + 0x80, 0x80, 0x80, PAD_ZERO + 0x80, 0x80, 0x80, PAD_ZERO + 0x80, 0x80, 0x80, PAD_ZERO + }; + static const unsigned char test_bits_86[] = + { + 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, PAD_ZERO PAD_ZERO + 0xfe, 0xfe, 0xfe, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_86[] = + { + 0xff, 0xff, 0xff, PAD_ZERO + 0xff, 0xff, 0xff, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + 0x00, 0x00, 0x00, PAD_ZERO + }; + /* 0xfe * 2 / 4 = 0x7f */ + static const unsigned char test_bits_87[] = + { + 0x00, 0x00, 0x00, 0xfe, 0xfe, 0xfe, PAD_ZERO PAD_ZERO + 0xfe, 0xfe, 0xfe, 0x00, 0x00, 0x00, PAD_ZERO PAD_ZERO + }; + static const unsigned char expected_bits_87[] = + { + 0x7f, 0x7f, 0x7f, PAD_ZERO + 0x7f, 0x7f, 0x7f, PAD_ZERO + 0x7f, 0x7f, 0x7f, PAD_ZERO + 0x7f, 0x7f, 0x7f, PAD_ZERO + }; + +#undef PAD_ZERO + + static const struct + { + const unsigned char *src_bits; + size_t src_bits_size; + const unsigned char *dst_bits; + size_t dst_bits_size; + int bpp; + int src_width; + int src_height; + int dst_width; + int dst_height; + BOOL todo; + } + tests[] = + { +#define BITS(x) test_bits_##x, sizeof(test_bits_##x), expected_bits_##x, sizeof(expected_bits_##x) + + {BITS(0), 24, 1, 1, 1, 1}, + {BITS(1), 24, 2, 1, 1, 1, TRUE}, + {BITS(2), 24, 2, 1, 1, 1, TRUE}, + {BITS(3), 24, 3, 1, 1, 1, TRUE}, + {BITS(4), 24, 3, 1, 1, 1, TRUE}, + {BITS(5), 24, 3, 1, 1, 1, TRUE}, + {BITS(6), 24, 3, 1, 1, 1, TRUE}, + {BITS(7), 24, 3, 1, 1, 1, TRUE}, + {BITS(8), 24, 3, 1, 1, 1, TRUE}, + {BITS(9), 24, 3, 1, 1, 1}, + {BITS(10), 24, 4, 1, 1, 1, TRUE}, + {BITS(11), 24, 5, 1, 1, 1, TRUE}, + {BITS(12), 24, 3, 1, 2, 1, TRUE}, + {BITS(13), 24, 3, 1, 2, 1, TRUE}, + {BITS(14), 24, 3, 1, 2, 1, TRUE}, + {BITS(15), 24, 3, 1, 2, 1, TRUE}, + {BITS(16), 24, 3, 1, 2, 1, TRUE}, + {BITS(17), 24, 3, 1, 2, 1, TRUE}, + {BITS(18), 24, 3, 1, 2, 1}, + {BITS(19), 24, 4, 1, 3, 1, TRUE}, + {BITS(20), 24, 4, 1, 3, 1, TRUE}, + {BITS(21), 24, 4, 1, 3, 1, TRUE}, + {BITS(22), 24, 4, 1, 3, 1, TRUE}, + {BITS(23), 24, 4, 1, 3, 1, TRUE}, + {BITS(24), 24, 5, 1, 3, 1, TRUE}, + {BITS(25), 24, 5, 1, 3, 1, TRUE}, + {BITS(26), 24, 5, 1, 3, 1, TRUE}, + {BITS(27), 24, 1, 2, 1, 1, TRUE}, + {BITS(28), 24, 1, 2, 1, 1, TRUE}, + {BITS(29), 24, 1, 3, 1, 1, TRUE}, + {BITS(30), 24, 1, 3, 1, 1, TRUE}, + {BITS(31), 24, 1, 3, 1, 1, TRUE}, + {BITS(32), 24, 1, 3, 1, 1, TRUE}, + {BITS(33), 24, 1, 3, 1, 1, TRUE}, + {BITS(34), 24, 1, 3, 1, 1, TRUE}, + {BITS(35), 24, 1, 3, 1, 1}, + {BITS(36), 24, 1, 4, 1, 1, TRUE}, + {BITS(37), 24, 1, 5, 1, 1, TRUE}, + {BITS(38), 24, 1, 3, 1, 2, TRUE}, + {BITS(39), 24, 1, 3, 1, 2, TRUE}, + {BITS(40), 24, 1, 3, 1, 2, TRUE}, + {BITS(41), 24, 1, 3, 1, 2, TRUE}, + {BITS(42), 24, 1, 3, 1, 2, TRUE}, + {BITS(43), 24, 1, 3, 1, 2, TRUE}, + {BITS(44), 24, 1, 3, 1, 2}, + {BITS(45), 24, 1, 4, 1, 3, TRUE}, + {BITS(46), 24, 1, 4, 1, 3, TRUE}, + {BITS(47), 24, 1, 4, 1, 3, TRUE}, + {BITS(48), 24, 1, 4, 1, 3, TRUE}, + {BITS(49), 24, 1, 4, 1, 3, TRUE}, + {BITS(50), 24, 1, 5, 1, 3, TRUE}, + {BITS(51), 24, 1, 5, 1, 3, TRUE}, + {BITS(52), 24, 1, 5, 1, 3, TRUE}, + {BITS(53), 24, 1, 1, 2, 1}, + {BITS(54), 24, 2, 1, 3, 1, TRUE}, + {BITS(55), 24, 3, 1, 4, 1, TRUE}, + {BITS(56), 24, 4, 1, 5, 1, TRUE}, + {BITS(57), 24, 1, 1, 1, 2}, + {BITS(58), 24, 1, 2, 1, 3, TRUE}, + {BITS(59), 24, 1, 3, 1, 4, TRUE}, + {BITS(60), 24, 1, 4, 1, 5, TRUE}, + {BITS(61), 24, 2, 2, 1, 1, TRUE}, + {BITS(62), 24, 2, 2, 1, 1, TRUE}, + {BITS(63), 24, 2, 2, 1, 1, TRUE}, + {BITS(64), 24, 2, 2, 1, 1, TRUE}, + {BITS(65), 24, 2, 2, 1, 1, TRUE}, + {BITS(66), 24, 2, 2, 1, 1, TRUE}, + {BITS(67), 24, 2, 2, 1, 1}, + {BITS(68), 24, 2, 2, 4, 1, TRUE}, + {BITS(69), 24, 2, 2, 4, 1, TRUE}, + {BITS(70), 24, 2, 2, 4, 1, TRUE}, + {BITS(71), 24, 2, 2, 4, 1, TRUE}, + {BITS(72), 24, 2, 2, 4, 1, TRUE}, + {BITS(73), 24, 2, 2, 4, 1, TRUE}, + {BITS(74), 24, 2, 2, 4, 1, TRUE}, + {BITS(75), 24, 2, 2, 4, 1, TRUE}, + {BITS(76), 24, 2, 2, 4, 1, TRUE}, + {BITS(77), 24, 2, 2, 4, 1, TRUE}, + {BITS(78), 24, 2, 2, 1, 4, TRUE}, + {BITS(79), 24, 2, 2, 1, 4, TRUE}, + {BITS(80), 24, 2, 2, 1, 4, TRUE}, + {BITS(81), 24, 2, 2, 1, 4, TRUE}, + {BITS(82), 24, 2, 2, 1, 4, TRUE}, + {BITS(83), 24, 2, 2, 1, 4, TRUE}, + {BITS(84), 24, 2, 2, 1, 4, TRUE}, + {BITS(85), 24, 2, 2, 1, 4, TRUE}, + {BITS(86), 24, 2, 2, 1, 4, TRUE}, + {BITS(87), 24, 2, 2, 1, 4, TRUE}, + +#undef BITS + }; + + unsigned char bmi_buffer[FIELD_OFFSET(BITMAPINFO, bmiColors[256])]; + HBITMAP src_bmp, dst_bmp, old_src_bmp, old_dst_bmp; + BITMAPINFO *bmi = (BITMAPINFO *)bmi_buffer; + unsigned char *src_bits, *dst_bits; + HDC dc, src_dc, dst_dc; + int i, ret; + + dc = GetDC(0); + + memset(&bmi_buffer, 0, sizeof(bmi_buffer)); + bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); + bmi->bmiHeader.biPlanes = 1; + bmi->bmiHeader.biCompression = BI_RGB; + + for (i = 0; i < ARRAY_SIZE(tests); ++i) + { + winetest_push_context("Test %d", i); + + bmi->bmiHeader.biBitCount = tests[i].bpp; + bmi->bmiHeader.biWidth = tests[i].src_width; + bmi->bmiHeader.biHeight = tests[i].src_height; + src_dc = CreateCompatibleDC(dc); + src_bmp = CreateDIBSection(src_dc, bmi, DIB_RGB_COLORS, (void **)&src_bits, NULL, 0); + ok(src_bmp && src_bits, "CreateDIBSection failed, error %u.\n", GetLastError()); + memcpy(src_bits, tests[i].src_bits, tests[i].src_bits_size); + old_src_bmp = SelectObject(src_dc, src_bmp); + + bmi->bmiHeader.biWidth = tests[i].dst_width; + bmi->bmiHeader.biHeight = tests[i].dst_height; + dst_dc = CreateCompatibleDC(dc); + dst_bmp = CreateDIBSection(dst_dc, bmi, DIB_RGB_COLORS, (void **)&dst_bits, NULL, 0); + ok(dst_bmp && dst_bits, "CreateDIBSection failed, error %u.\n", GetLastError()); + old_dst_bmp = SelectObject(dst_dc, dst_bmp); + + SetStretchBltMode(dst_dc, HALFTONE); + ret = GetStretchBltMode(dst_dc); + ok(ret == HALFTONE, "Expected mode %#x, got %#x\n", HALFTONE, ret); + ret = StretchBlt(dst_dc, 0, 0, tests[i].dst_width, tests[i].dst_height, src_dc, 0, 0, + tests[i].src_width, tests[i].src_height, SRCCOPY); + ok(ret, "StretchBlt failed, error %u.\n", GetLastError()); + + ret = memcmp(dst_bits, tests[i].dst_bits, tests[i].dst_bits_size); + todo_wine_if(tests[i].todo) + ok(!ret, "Bits mismatch.\n"); + if (ret) + dump_bits(tests[i].bpp, tests[i].dst_width, tests[i].dst_bits, dst_bits, + tests[i].dst_bits_size, "StretchBlt_HALFTONE"); + + SelectObject(dst_dc, old_dst_bmp); + SelectObject(src_dc, old_src_bmp); + DeleteObject(dst_bmp); + DeleteObject(src_bmp); + DeleteDC(dst_dc); + DeleteDC(src_dc); + + winetest_pop_context(); + } + + ReleaseDC(0, dc); +} + static void check_StretchDIBits_pixel(HDC hdcDst, UINT32 *dstBuffer, UINT32 *srcBuffer, DWORD dwRop, UINT32 expected, int line) { @@ -5963,6 +7098,7 @@ START_TEST(bitmap) test_CreateBitmap(); test_BitBlt(); test_StretchBlt(); + test_StretchBlt_HALFTONE(); test_StretchDIBits(); test_GdiAlphaBlend(); test_GdiGradientFill();
On Mon, May 31, 2021 at 04:22:47PM +0800, Zhiyi Zhang wrote:
Signed-off-by: Zhiyi Zhang zzhang@codeweavers.com
I'm not sure the tests should be in tests/dib.c. The framework in dib.c hashes results and compares them. I don't think that's going to help us figuring out the exact HALFTONE algorithm details with the results being hashes. Also, the tests that succeed have all input pixels has the same value. So if I only add the tests that succeed, it provides little value. The tests here are mostly for helping figuring out the algorithm in the future. Since the actual Wine implementation in the previous patch uses a different approach. It doesn't reproduce identical results. So if you feel that such tests are not necessary, you can drop this.
Yes, let's drop this. If we end up switching to an implemention that matches native, we can add tests to the hashing framework. I'm concerned about adding corner cases now, which will be a pain to get right later. Of course if there's an app that depends on a specific result that's a different matter.
Huw.
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Huw Davies -
Zhiyi Zhang