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gdi32: Add support for non-rgb colorrefs.

This commit is contained in:
Huw Davies 2011-10-19 12:41:52 +01:00 committed by Alexandre Julliard
parent 0967de74db
commit a3b5f270a8
1 changed files with 56 additions and 2 deletions
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58
dlls/gdi32/dibdrv/objects.c
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@ -123,6 +123,54 @@ static inline BOOL rgbquad_equal(const RGBQUAD *a, const RGBQUAD *b)
return FALSE;
}
static COLORREF make_rgb_colorref( dibdrv_physdev *pdev, COLORREF color,
BOOL *got_pixel, DWORD *pixel )
{
BYTE type = color >> 24;
WORD index = LOWORD( color );
HPALETTE pal = GetCurrentObject( pdev->dev.hdc, OBJ_PAL );
PALETTEENTRY pal_ent;
*pixel = 0;
*got_pixel = FALSE;
switch( type )
{
case 0: break;
case 0x10: /* DIBINDEX */
*got_pixel = TRUE;
*pixel = 0;
color = RGB(0, 0, 0);
if (pdev->dib.bit_count <= 8 && index < (1 << pdev->dib.bit_count))
{
*pixel = index;
if (index < pdev->dib.color_table_size)
color = RGB( pdev->dib.color_table[index].rgbRed,
pdev->dib.color_table[index].rgbGreen,
pdev->dib.color_table[index].rgbBlue );
}
break;
case 2: /* PALETTERGB */
color &= 0xffffff;
break;
case 1: /* PALETTEINDEX */
if (!GetPaletteEntries( pal, index, 1, &pal_ent ))
GetPaletteEntries( pal, 0, 1, &pal_ent );
color = RGB( pal_ent.peRed, pal_ent.peGreen, pal_ent.peBlue );
break;
default:
FIXME("Unhandled color type %08x\n", color);
color &= 0xffffff;
}
return color;
}
/******************************************************************
* get_pixel_color
*
@ -135,11 +183,17 @@ static inline BOOL rgbquad_equal(const RGBQUAD *a, const RGBQUAD *b)
DWORD get_pixel_color( dibdrv_physdev *pdev, COLORREF color, BOOL mono_fixup )
{
RGBQUAD fg_quad;
BOOL got_pixel;
DWORD pixel;
COLORREF rgb_ref;
rgb_ref = make_rgb_colorref( pdev, color, &got_pixel, &pixel );
if (got_pixel) return pixel;
if (pdev->dib.bit_count != 1 || !mono_fixup)
return pdev->dib.funcs->colorref_to_pixel( &pdev->dib, color );
return pdev->dib.funcs->colorref_to_pixel( &pdev->dib, rgb_ref );
fg_quad = rgbquad_from_colorref( color );
fg_quad = rgbquad_from_colorref( rgb_ref );
if(rgbquad_equal(&fg_quad, pdev->dib.color_table))
return 0;
if(rgbquad_equal(&fg_quad, pdev->dib.color_table + 1))