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gdi32: Avoid copying the brush pattern if the format matches the DC.

This commit is contained in:
Alexandre Julliard 2011-11-08 13:32:36 +01:00
parent bb162ba4b4
commit 03496d6fba
1 changed files with 29 additions and 1 deletions
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30
dlls/gdi32/dibdrv/objects.c
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@ -1246,6 +1246,27 @@ static BOOL create_hatch_brush_bits(dibdrv_physdev *pdev)
return ret; return ret;
} }
static BOOL matching_pattern_format( dib_info *dib, dib_info *pattern )
{
if (dib->bit_count != pattern->bit_count) return FALSE;
if (dib->stride != pattern->stride) return FALSE;
switch (dib->bit_count)
{
case 1:
case 4:
case 8:
if (dib->color_table_size != pattern->color_table_size) return FALSE;
return !memcmp( dib->color_table, pattern->color_table, dib->color_table_size * sizeof(RGBQUAD) );
case 16:
case 32:
return (dib->red_mask == pattern->red_mask &&
dib->green_mask == pattern->green_mask &&
dib->blue_mask == pattern->blue_mask);
}
return TRUE;
}
static void select_pattern_brush( dibdrv_physdev *pdev, dib_info *pattern ) static void select_pattern_brush( dibdrv_physdev *pdev, dib_info *pattern )
{ {
RECT rect; RECT rect;
@ -1257,7 +1278,14 @@ static void select_pattern_brush( dibdrv_physdev *pdev, dib_info *pattern )
pdev->brush_dib.width = pattern->width; pdev->brush_dib.width = pattern->width;
pdev->brush_dib.stride = get_dib_stride( pdev->brush_dib.width, pdev->brush_dib.bit_count ); pdev->brush_dib.stride = get_dib_stride( pdev->brush_dib.width, pdev->brush_dib.bit_count );
pdev->brush_dib.bits.param = NULL; if (matching_pattern_format( &pdev->brush_dib, pattern ))
{
pdev->brush_dib.bits.ptr = pattern->bits.ptr;
pdev->brush_dib.bits.is_copy = FALSE;
pdev->brush_dib.bits.free = NULL;
return;
}
pdev->brush_dib.bits.ptr = HeapAlloc( GetProcessHeap(), 0, pdev->brush_dib.bits.ptr = HeapAlloc( GetProcessHeap(), 0,
pdev->brush_dib.height * pdev->brush_dib.stride ); pdev->brush_dib.height * pdev->brush_dib.stride );
pdev->brush_dib.bits.is_copy = TRUE; pdev->brush_dib.bits.is_copy = TRUE;