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user32: Select more appropriate stretch mode for colored images interpolation. 

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=46375
Signed-off-by: Paul Gofman <gofmanp@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Paul Gofman 2019-02-05 18:28:11 +03:00 committed by Alexandre Julliard
parent cbf1207b88
commit bfe1ea26dd
2 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
dlls/user32/cursoricon.c
View File

@ -2976,6 +2976,8 @@ static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name,
}
orig_bm = SelectObject(screen_mem_dc, hbitmap);
if (info->bmiHeader.biBitCount > 1)
SetStretchBltMode(screen_mem_dc, HALFTONE);
StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY);
SelectObject(screen_mem_dc, orig_bm);
@ -3217,6 +3219,8 @@ HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
void * bits;
dc = CreateCompatibleDC(NULL);
if (ds.dsBm.bmBitsPixel > 1)
SetStretchBltMode(dc, HALFTONE);
bi->bmiHeader.biWidth = ds.dsBm.bmWidth;
bi->bmiHeader.biHeight = ds.dsBm.bmHeight;

4
dlls/user32/tests/cursoricon.c
View File

@ -2918,9 +2918,9 @@ static void test_Image_StretchMode(void)
sizeof(colors_bits_1), FALSE},
{4, 4, 2, 2, 8, test_bits_8, expected_bits_8,
sizeof(test_bits_8), sizeof(expected_bits_8), colors_bits_8,
sizeof(colors_bits_8), TRUE},
sizeof(colors_bits_8), FALSE},
{4, 4, 2, 2, 16, (const unsigned char *)test_bits_16, (const unsigned char *)expected_bits_16,
sizeof(test_bits_16), sizeof(expected_bits_16), NULL, 0, TRUE},
sizeof(test_bits_16), sizeof(expected_bits_16), NULL, 0, FALSE},
};
static const char filename[] = "test.bmp";
BITMAPINFO *bmi, *bmi_output;