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gdi32/tests: Add some tests to show the 1 pixel dst sizes are a special case.

This commit is contained in:
Huw Davies 2011-09-22 13:56:29 +01:00 committed by Alexandre Julliard
parent abc76c27a7
commit 4156460d49
1 changed files with 54 additions and 0 deletions
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54
dlls/gdi32/tests/bitmap.c
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@ -2826,6 +2826,7 @@ static void test_StretchBlt(void)
check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
0, 0, 2, 2, 0, 0, 1, 1, expected, __LINE__);
/* This is an example of the dst width (height) == 1 exception, explored below */
expected[0] = 0xCAFED00D, expected[1] = 0x00000000;
expected[16] = 0x00000000, expected[17] = 0x00000000;
check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
@ -2853,10 +2854,63 @@ static void test_StretchBlt(void)
check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
1, 1, 2, 2, 0, 0, 2, 2, expected, __LINE__);
/* when dst width is 1 merge src width - 1 pixels */
memset( srcBuffer, 0, get_dib_image_size( &biSrc ) );
srcBuffer[0] = 0x0000ff00, srcBuffer[1] = 0x0000f0f0, srcBuffer[2] = 0x0000cccc, srcBuffer[3] = 0x0000aaaa;
srcBuffer[16] = 0xFEDCBA98, srcBuffer[17] = 0x76543210;
memset( expected, 0, get_dib_image_size( &biDst ) );
expected[0] = srcBuffer[0];
check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
0, 0, 1, 1, 0, 0, 2, 1, expected, __LINE__);
expected[0] = srcBuffer[0] & srcBuffer[1];
todo_wine
check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
0, 0, 1, 1, 0, 0, 3, 1, expected, __LINE__);
expected[0] = srcBuffer[0] & srcBuffer[1] & srcBuffer[2];
todo_wine
check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
0, 0, 1, 1, 0, 0, 4, 1, expected, __LINE__);
/* this doesn't happen if the src width is -ve */
expected[0] = srcBuffer[1] & srcBuffer[2];
todo_wine
check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
0, 0, 1, 1, 2, 0, -2, 1, expected, __LINE__);
/* when dst width > 1 behaviour reverts to what one would expect */
expected[0] = srcBuffer[0] & srcBuffer[1], expected[1] = srcBuffer[2] & srcBuffer[3];
todo_wine
check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
0, 0, 2, 1, 0, 0, 4, 1, expected, __LINE__);
/* similarly in the vertical direction */
memset( expected, 0, get_dib_image_size( &biDst ) );
expected[0] = srcBuffer[0];
check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
0, 0, 1, 1, 0, 0, 1, 2, expected, __LINE__);
/* check that it's the dst size in device units that needs to be 1 */
SetMapMode( hdcDst, MM_ISOTROPIC );
SetWindowExtEx( hdcDst, 200, 200, NULL );
SetViewportExtEx( hdcDst, 100, 100, NULL );
expected[0] = srcBuffer[0] & srcBuffer[1] & srcBuffer[2];
todo_wine
check_StretchBlt_stretch(hdcDst, hdcSrc, &biDst, dstBuffer, srcBuffer,
0, 0, 2, 2, 0, 0, 4, 1, expected, __LINE__);
SetMapMode( hdcDst, MM_TEXT );
SelectObject(hdcDst, oldDst);
DeleteObject(bmpDst);
/* Top-down to bottom-up tests */
memset( srcBuffer, 0, get_dib_image_size( &biSrc ) );
srcBuffer[0] = 0xCAFED00D, srcBuffer[1] = 0xFEEDFACE;
srcBuffer[16] = 0xFEDCBA98, srcBuffer[17] = 0x76543210;
biDst.bmiHeader.biHeight = 16;
bmpDst = CreateDIBSection(hdcScreen, &biDst, DIB_RGB_COLORS, (void**)&dstBuffer,
NULL, 0);