gdi32: Return default palette entries from GetSystemPaletteEntries for non-palette-based devices.
Anton Baskanov
baskanov at gmail.com
Fri May 1 02:02:28 CDT 2015
Fixes rendering artifacts in Marble Drop.
---
dlls/gdi32/palette.c | 35 ++++++++++++++++++++++++--
dlls/gdi32/tests/palette.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 94 insertions(+), 2 deletions(-)
diff --git a/dlls/gdi32/palette.c b/dlls/gdi32/palette.c
index d850d0f..fa3e638 100644
--- a/dlls/gdi32/palette.c
+++ b/dlls/gdi32/palette.c
@@ -418,8 +418,39 @@ UINT WINAPI GetSystemPaletteEntries(
if ((dc = get_dc_ptr( hdc )))
{
- PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetSystemPaletteEntries );
- ret = physdev->funcs->pGetSystemPaletteEntries( physdev, start, count, entries );
+ if (!(GetDeviceCaps( hdc, RASTERCAPS ) & RC_PALETTE))
+ {
+ if (entries && start < 256)
+ {
+ UINT i;
+ const RGBQUAD *default_entries;
+
+ if (start + count > 256) count = 256 - start;
+
+ default_entries = get_default_color_table( 8 );
+ for (i = 0; i < count; ++i)
+ {
+ if (i < 10 || i >= 246)
+ {
+ entries[i].peRed = default_entries[start + i].rgbRed;
+ entries[i].peGreen = default_entries[start + i].rgbGreen;
+ entries[i].peBlue = default_entries[start + i].rgbBlue;
+ }
+ else
+ {
+ entries[i].peRed = 0;
+ entries[i].peGreen = 0;
+ entries[i].peBlue = 0;
+ }
+ entries[i].peFlags = 0;
+ }
+ }
+ }
+ else
+ {
+ PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetSystemPaletteEntries );
+ ret = physdev->funcs->pGetSystemPaletteEntries( physdev, start, count, entries );
+ }
release_dc_ptr( dc );
}
return ret;
diff --git a/dlls/gdi32/tests/palette.c b/dlls/gdi32/tests/palette.c
index f95c0d3..a6492fd 100644
--- a/dlls/gdi32/tests/palette.c
+++ b/dlls/gdi32/tests/palette.c
@@ -191,9 +191,70 @@ static void test_halftone_palette(void)
ReleaseDC( 0, hdc );
}
+static void test_system_palette_entries(void)
+{
+ HDC hdc;
+ PALETTEENTRY entries[256];
+ PALETTEENTRY defpal[20];
+ int i, count;
+
+ hdc = GetDC(0);
+
+ if (!(GetDeviceCaps( hdc, RASTERCAPS ) & RC_PALETTE))
+ {
+ memset( defpal, 0xaa, sizeof(defpal) );
+
+ count = GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, 20, defpal );
+ ok( count == 20, "wrong size %u\n", count );
+
+ memset( entries, 0x55, sizeof(entries) );
+
+ count = GetSystemPaletteEntries( hdc, 0, 256, entries );
+ ok( count == 0, "wrong size %u\n", count);
+
+ for (i = 0; i < 10; i++)
+ {
+ ok( entries[i].peRed == defpal[i].peRed &&
+ entries[i].peGreen == defpal[i].peGreen &&
+ entries[i].peBlue == defpal[i].peBlue &&
+ !entries[i].peFlags,
+ "%u: wrong color %02x,%02x,%02x,%02x instead of %02x,%02x,%02x\n", i,
+ entries[i].peRed, entries[i].peGreen, entries[i].peBlue, entries[i].peFlags,
+ defpal[i].peRed, defpal[i].peGreen, defpal[i].peBlue );
+ }
+ for (i = 10; i < 246; ++i)
+ {
+ ok( !entries[i].peRed &&
+ !entries[i].peGreen &&
+ !entries[i].peBlue &&
+ !entries[i].peFlags,
+ "%u: wrong color %02x,%02x,%02x,%02x instead of 0,0,0\n", i,
+ entries[i].peRed, entries[i].peGreen, entries[i].peBlue, entries[i].peFlags);
+ }
+ for (i = 246; i < 256; i++)
+ {
+ int idx = i - 246 + 10;
+ ok( entries[i].peRed == defpal[idx].peRed &&
+ entries[i].peGreen == defpal[idx].peGreen &&
+ entries[i].peBlue == defpal[idx].peBlue &&
+ !entries[i].peFlags,
+ "%u: wrong color %02x,%02x,%02x,%02x instead of %02x,%02x,%02x\n", i,
+ entries[i].peRed, entries[i].peGreen, entries[i].peBlue, entries[i].peFlags,
+ defpal[idx].peRed, defpal[idx].peGreen, defpal[idx].peBlue );
+ }
+ }
+ else
+ {
+ skip( "device is palette-based, skipping test\n" );
+ }
+
+ ReleaseDC( 0, hdc );
+}
+
START_TEST(palette)
{
test_DIB_PAL_COLORS();
test_palette_entries();
test_halftone_palette();
+ test_system_palette_entries();
}
--
2.1.0
More information about the wine-patches
mailing list