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gdi32: Allow dib_info structures to share colour tables.

This commit is contained in:
Huw Davies 2011-07-12 16:12:05 +01:00 committed by Alexandre Julliard
parent 00a386ebf9
commit e844bddc36
2 changed files with 29 additions and 9 deletions
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31
dlls/gdi32/dibdrv/dc.c
View File

@ -64,7 +64,7 @@ static void init_bit_fields(dib_info *dib, const DWORD *bit_fields)
}
static BOOL init_dib_info(dib_info *dib, const BITMAPINFOHEADER *bi, const DWORD *bit_fields,
RGBQUAD *color_table, int color_table_size, void *bits)
RGBQUAD *color_table, int color_table_size, void *bits, enum dib_info_flags flags)
{
static const DWORD bit_fields_888[3] = {0xff0000, 0x00ff00, 0x0000ff};
static const DWORD bit_fields_555[3] = {0x7c00, 0x03e0, 0x001f};
@ -75,6 +75,7 @@ static BOOL init_dib_info(dib_info *dib, const BITMAPINFOHEADER *bi, const DWORD
dib->stride = ((dib->width * dib->bit_count + 31) >> 3) & ~3;
dib->bits = bits;
dib->ptr_to_free = NULL;
dib->flags = flags;
if(dib->height < 0) /* top-down */
{
@ -138,10 +139,15 @@ static BOOL init_dib_info(dib_info *dib, const BITMAPINFOHEADER *bi, const DWORD
if(color_table)
{
dib->color_table = HeapAlloc(GetProcessHeap(), 0, color_table_size * sizeof(dib->color_table[0]));
if(!dib->color_table) return FALSE;
if (flags & private_color_table)
{
dib->color_table = HeapAlloc(GetProcessHeap(), 0, color_table_size * sizeof(dib->color_table[0]));
if(!dib->color_table) return FALSE;
memcpy(dib->color_table, color_table, color_table_size * sizeof(color_table[0]));
}
else
dib->color_table = color_table;
dib->color_table_size = color_table_size;
memcpy(dib->color_table, color_table, color_table_size * sizeof(color_table[0]));
}
else
{
@ -191,7 +197,7 @@ BOOL init_dib_info_from_packed(dib_info *dib, const BITMAPINFOHEADER *bi, WORD u
}
}
return init_dib_info(dib, bi, masks, color_table, num_colors, ptr);
return init_dib_info(dib, bi, masks, color_table, num_colors, ptr, private_color_table);
}
static void clear_dib_info(dib_info *dib)
@ -208,7 +214,8 @@ static void clear_dib_info(dib_info *dib)
*/
void free_dib_info(dib_info *dib)
{
HeapFree(GetProcessHeap(), 0, dib->color_table);
if (dib->flags & private_color_table)
HeapFree(GetProcessHeap(), 0, dib->color_table);
dib->color_table = NULL;
HeapFree(GetProcessHeap(), 0, dib->ptr_to_free);
@ -231,11 +238,17 @@ void copy_dib_color_info(dib_info *dst, const dib_info *src)
dst->funcs = src->funcs;
dst->color_table_size = src->color_table_size;
dst->color_table = NULL;
dst->flags = src->flags;
if(dst->color_table_size)
{
int size = dst->color_table_size * sizeof(dst->color_table[0]);
dst->color_table = HeapAlloc(GetProcessHeap(), 0, size);
memcpy(dst->color_table, src->color_table, size);
if (dst->flags & private_color_table)
{
dst->color_table = HeapAlloc(GetProcessHeap(), 0, size);
memcpy(dst->color_table, src->color_table, size);
}
else
dst->color_table = src->color_table;
}
}
@ -315,7 +328,7 @@ static HBITMAP CDECL dibdrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
pdev->brush_and_bits = pdev->brush_xor_bits = NULL;
if(!init_dib_info(&pdev->dib, &bmp->dib->dsBmih, bmp->dib->dsBitfields,
bmp->color_table, bmp->nb_colors, bmp->dib->dsBm.bmBits))
bmp->color_table, bmp->nb_colors, bmp->dib->dsBm.bmBits, private_color_table))
pdev->defer |= DEFER_FORMAT;
GDI_ReleaseObj( bitmap );

7
dlls/gdi32/gdi_private.h
View File

@ -73,6 +73,11 @@ typedef struct tagGDIOBJHDR
/* Device functions for the Wine driver interface */
enum dib_info_flags
{
private_color_table = 1
};
typedef struct
{
int bit_count, width, height;
@ -87,6 +92,8 @@ typedef struct
RGBQUAD *color_table;
DWORD color_table_size;
enum dib_info_flags flags;
const struct primitive_funcs *funcs;
} dib_info;