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winex11: Fix SetDIBitsToDevice coordinate mapping for negative values.

This commit is contained in:
Alexandre Julliard 2011-09-01 13:00:14 +02:00
parent e1ca5c38e2
commit bcc21c9b79
2 changed files with 49 additions and 1 deletions
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41
dlls/gdi32/tests/bitmap.c
View File

@ -4364,6 +4364,15 @@ static void test_SetDIBitsToDevice(void)
for (i = 0; i < 64; i++) ok( dib_bits[i] == 0xaaaaaaaa, "%d: got %08x\n", i, dib_bits[i] );
memset( dib_bits, 0xaa, 64 * 4 );
ret = SetDIBitsToDevice( hdc, 5, -7, 8, 16, -2, -4, 0, 12, data, info, DIB_RGB_COLORS );
ok( ret == 12, "got %d\n", ret );
for (i = 0; i < 64; i++)
if (i == 31 || i == 39 || i == 47 || i == 55 || i == 63)
ok( dib_bits[i] == inverted_data[i + 1], "%d: got %08x\n", i, dib_bits[i] );
else
ok( dib_bits[i] == 0xaaaaaaaa, "%d: got %08x\n", i, dib_bits[i] );
memset( dib_bits, 0xaa, 64 * 4 );
info->bmiHeader.biHeight = -5;
ret = SetDIBitsToDevice( hdc, 0, 0, 8, 8, 0, 0, 1, 2, data, info, DIB_RGB_COLORS );
ok( ret == 2, "got %d\n", ret );
@ -4420,6 +4429,15 @@ static void test_SetDIBitsToDevice(void)
for (i = 56; i < 64; i++) ok( dib_bits[i] == 0xaaaaaaaa, "%d: got %08x\n", i, dib_bits[i] );
memset( dib_bits, 0xaa, 64 * 4 );
ret = SetDIBitsToDevice( hdc, 5, -7, 8, 16, -1, -8, 0, 12, data, info, DIB_RGB_COLORS );
ok( ret == 12, "got %d\n", ret );
for (i = 0; i < 64; i++)
if (i == 6 || i == 7)
ok( dib_bits[i] == data[i + 82], "%d: got %08x\n", i, dib_bits[i] );
else
ok( dib_bits[i] == 0xaaaaaaaa, "%d: got %08x\n", i, dib_bits[i] );
memset( dib_bits, 0xaa, 64 * 4 );
info->bmiHeader.biHeight = -5;
ret = SetDIBitsToDevice( hdc, 0, 0, 8, 8, 0, 0, 1, 2, data, info, DIB_RGB_COLORS );
ok( ret == 2, "got %d\n", ret );
@ -4464,6 +4482,29 @@ static void test_SetDIBitsToDevice(void)
for (i = 56; i < 64; i++) ok( dib_bits[i] == 0xaaaaaaaa, "%d: got %08x\n", i, dib_bits[i] );
memset( dib_bits, 0xaa, 64 * 4 );
ret = SetDIBitsToDevice( hdc, 4, 4, 8, 8, 0, -4, 1, 12, data, info, DIB_RGB_COLORS );
ok( ret == 3, "got %d\n", ret );
for (i = 0; i < 64; i++)
if ((i >= 36 && i <= 39) || (i >= 44 && i <= 47) || (i >= 52 && i <= 55))
ok( dib_bits[i] == inverted_data[i + 68], "%d: got %08x\n", i, dib_bits[i] );
else
ok( dib_bits[i] == 0xaaaaaaaa, "%d: got %08x\n", i, dib_bits[i] );
memset( dib_bits, 0xaa, 64 * 4 );
ret = SetDIBitsToDevice( hdc, 4, 4, 8, 8, -30, -30, 1, 12, data, info, DIB_RGB_COLORS );
ok( ret == 0, "got %d\n", ret );
for (i = 0; i < 64; i++) ok( dib_bits[i] == 0xaaaaaaaa, "%d: got %08x\n", i, dib_bits[i] );
memset( dib_bits, 0xaa, 64 * 4 );
ret = SetDIBitsToDevice( hdc, 5, -5, 8, 16, -2, -4, 4, 12, data, info, DIB_RGB_COLORS );
ok( ret == 8, "got %d\n", ret );
for (i = 0; i < 64; i++)
if (i == 7 || i == 15 || i == 23)
ok( dib_bits[i] == inverted_data[i + 97], "%d: got %08x\n", i, dib_bits[i] );
else
ok( dib_bits[i] == 0xaaaaaaaa, "%d: got %08x\n", i, dib_bits[i] );
memset( dib_bits, 0xaa, 64 * 4 );
info->bmiHeader.biHeight = 5;
ret = SetDIBitsToDevice( hdc, 0, 0, 8, 8, 0, 0, 1, 2, data, info, DIB_RGB_COLORS );
ok( ret == 2, "got %d\n", ret );

9
dlls/winex11.drv/dib.c
View File

@ -3764,14 +3764,21 @@ INT X11DRV_SetDIBitsToDevice( PHYSDEV dev, INT xDest, INT yDest, DWORD cx, DWORD
}
else
{
if (ySrc >= startscan + lines) return lines;
if (ySrc >= startscan + lines) return 0;
pt.y += ySrc + cy - (startscan + lines);
cy = startscan + lines - ySrc;
ySrc = 0;
if (cy > lines) cy = lines;
}
if (xSrc >= info->bmiHeader.biWidth) return lines;
if (xSrc + cx <= 0) return lines;
if (xSrc + cx >= info->bmiHeader.biWidth) cx = info->bmiHeader.biWidth - xSrc;
if (xSrc < 0)
{
pt.x -= xSrc;
cx += xSrc;
xSrc = 0;
}
if (!cx || !cy) return lines;
/* Update the pixmap from the DIB section */