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gdi32: Add helper functions for copying a DIB line.

oldstable
Alexandre Julliard 2011-09-22 10:18:14 +02:00
parent 3ace501190
commit 5fd305c31f
1 changed files with 57 additions and 39 deletions
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96
dlls/gdi32/dibdrv/primitives.c
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@ -104,6 +104,57 @@ static inline void do_rop_codes_mask_8(BYTE *dst, BYTE src, struct rop_codes *co
do_rop_mask_8( dst, (src & codes->a1) ^ codes->a2, (src & codes->x1) ^ codes->x2, mask );
}
static inline void do_rop_codes_line_32(DWORD *dst, const DWORD *src, struct rop_codes *codes, int len)
{
for (; len > 0; len--, src++, dst++) do_rop_codes_32( dst, *src, codes );
}
static inline void do_rop_codes_line_16(WORD *dst, const WORD *src, struct rop_codes *codes, int len)
{
for (; len > 0; len--, src++, dst++) do_rop_codes_16( dst, *src, codes );
}
static inline void do_rop_codes_line_8(BYTE *dst, const BYTE *src, struct rop_codes *codes, int len)
{
for (; len > 0; len--, src++, dst++) do_rop_codes_8( dst, *src, codes );
}
static inline void do_rop_codes_line_4(BYTE *dst, int dst_x, const BYTE *src, int src_x,
struct rop_codes *codes, int len)
{
BYTE src_val;
for (src += src_x / 2, dst += dst_x / 2; len > 0; len--, dst_x++, src_x++)
{
if (dst_x & 1)
{
if (src_x & 1) src_val = *src++;
else src_val = *src >> 4;
do_rop_codes_mask_8( dst++, src_val, codes, 0x0f );
}
else
{
if (src_x & 1) src_val = *src++ << 4;
else src_val = *src;
do_rop_codes_mask_8( dst, src_val, codes, 0xf0 );
}
}
}
static inline void do_rop_codes_line_1(BYTE *dst, int dst_x, const BYTE *src, int src_x,
struct rop_codes *codes, int len)
{
BYTE src_val;
for (src += src_x / 8, dst += dst_x / 8; len > 0; len--, dst_x++, src_x++)
{
src_val = *src & pixel_masks_1[src_x & 7] ? 0xff : 0;
do_rop_codes_mask_8( dst, src_val, codes, pixel_masks_1[dst_x & 7] );
if ((src_x & 7) == 7) src++;
if ((dst_x & 7) == 7) dst++;
}
}
static void solid_rects_32(const dib_info *dib, int num, const RECT *rc, DWORD and, DWORD xor)
{
DWORD *ptr, *start;
@ -706,9 +757,7 @@ static void copy_rect_32(const dib_info *dst, const RECT *rc,
get_rop_codes( rop2, &codes );
for (y = rc->top; y < rc->bottom; y++)
{
for (x = rc->left, dst_ptr = dst_start, src_ptr = src_start; x < rc->right; x++)
do_rop_codes_32( dst_ptr++, *src_ptr++, &codes );
do_rop_codes_line_32( dst_start, src_start, &codes, rc->right - rc->left );
dst_start += dst->stride / 4;
src_start += src->stride / 4;
}
@ -750,12 +799,7 @@ static void copy_rect_24(const dib_info *dst, const RECT *rc,
get_rop_codes( rop2, &codes );
for (y = rc->top; y < rc->bottom; y++)
{
for (x = rc->left, dst_ptr = dst_start, src_ptr = src_start; x < rc->right; x++)
{
do_rop_codes_8( dst_ptr++, *src_ptr++, &codes );
do_rop_codes_8( dst_ptr++, *src_ptr++, &codes );
do_rop_codes_8( dst_ptr++, *src_ptr++, &codes );
}
do_rop_codes_line_8( dst_start, src_start, &codes, (rc->right - rc->left) * 3 );
dst_start += dst->stride;
src_start += src->stride;
}
@ -797,9 +841,7 @@ static void copy_rect_16(const dib_info *dst, const RECT *rc,
get_rop_codes( rop2, &codes );
for (y = rc->top; y < rc->bottom; y++)
{
for (x = rc->left, dst_ptr = dst_start, src_ptr = src_start; x < rc->right; x++)
do_rop_codes_16( dst_ptr++, *src_ptr++, &codes );
do_rop_codes_line_16( dst_start, src_start, &codes, rc->right - rc->left );
dst_start += dst->stride / 2;
src_start += src->stride / 2;
}
@ -841,9 +883,7 @@ static void copy_rect_8(const dib_info *dst, const RECT *rc,
get_rop_codes( rop2, &codes );
for (y = rc->top; y < rc->bottom; y++)
{
for (x = rc->left, dst_ptr = dst_start, src_ptr = src_start; x < rc->right; x++)
do_rop_codes_8( dst_ptr++, *src_ptr++, &codes );
do_rop_codes_line_8( dst_start, src_start, &codes, rc->right - rc->left );
dst_start += dst->stride;
src_start += src->stride;
}
@ -888,21 +928,7 @@ static void copy_rect_4(const dib_info *dst, const RECT *rc,
get_rop_codes( rop2, &codes );
for (y = rc->top; y < rc->bottom; y++)
{
for (x = rc->left, src_x = origin->x, dst_ptr = dst_start, src_ptr = src_start; x < rc->right; x++, src_x++)
{
if (x & 1)
{
if (src_x & 1) src_val = *src_ptr++;
else src_val = *src_ptr >> 4;
do_rop_codes_mask_8( dst_ptr++, src_val, &codes, 0x0f );
}
else
{
if (src_x & 1) src_val = *src_ptr++ << 4;
else src_val = *src_ptr;
do_rop_codes_mask_8( dst_ptr, src_val, &codes, 0xf0 );
}
}
do_rop_codes_line_4( dst_start, rc->left, src_start, origin->x, &codes, rc->right - rc->left );
dst_start += dst->stride;
src_start += src->stride;
}
@ -947,15 +973,7 @@ static void copy_rect_1(const dib_info *dst, const RECT *rc,
get_rop_codes( rop2, &codes );
for (y = rc->top; y < rc->bottom; y++)
{
dst_bitpos = rc->left & 7;
src_bitpos = origin->x & 7;
for (x = rc->left, dst_ptr = dst_start, src_ptr = src_start; x < rc->right; x++)
{
src_val = *src_ptr & pixel_masks_1[src_bitpos] ? 0xff : 0;
do_rop_codes_mask_8( dst_ptr, src_val, &codes, pixel_masks_1[dst_bitpos] );
if (dst_bitpos++ == 7) { dst_ptr++, dst_bitpos = 0; }
if (src_bitpos++ == 7) { src_ptr++, src_bitpos = 0; }
}
do_rop_codes_line_1( dst_start, rc->left, src_start, origin->x, &codes, rc->right - rc->left );
dst_start += dst->stride;
src_start += src->stride;
}