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kolibrios/programs/develop/libraries/pixlib/draw.inc
Sergey Semyonov (Serge) 80c71dc52a blit from system memory in PIO mode
git-svn-id: svn://kolibrios.org@1002 a494cfbc-eb01-0410-851d-a64ba20cac60
2009-01-27 00:31:09 +00:00

873 lines
24 KiB
C++

#include <mmintrin.h>
static void HLine(char *addr,int width, color_t color)
{
__m64 dst_color;
dst_color = _mm_cvtsi32_si64(color);
dst_color = _mm_unpacklo_pi32(dst_color, dst_color);
while (width >= 8)
{
__asm__ __volatile__ (
"movq %[clr], (%0)\n\t"
"movq %[clr], 8(%0)\n\t"
"movq %[clr], 16(%0)\n\t"
"movq %[clr], 24(%0)\n\t"
:: "r" (addr), [clr] "y" (dst_color));
addr += 32;
width -= 8;
}
if (width >= 4)
{
__asm__ __volatile__ (
"movq %[clr], (%0)\n\t"
"movq %[clr], 8(%0)\n\t"
:: "r" (addr), [clr] "y" (dst_color));
addr += 16;
width -= 4;
}
if (width >= 2)
{
__asm__ __volatile__ (
"movq %[clr], (%0)\n\t"
:: "r" (addr), [clr] "y" (dst_color));
addr += 8;
width -= 2;
}
if ( width )
__asm__ __volatile__ (
"movd %[clr], (%0)\n\t"
:: "r" (addr), [clr] "y" (dst_color));
_mm_empty();
}
static void pxDraw(char *dst_addr, int pitch, int w, int h, color_t dst_color)
{
__m64 color;
color = _mm_cvtsi32_si64(dst_color);
color = _mm_unpacklo_pi32(color, color);
while(h--)
{
char *tmp_dst =dst_addr;
int width = w;
dst_addr += pitch;
while(width >= 8)
{
__asm__ __volatile__
("movq %[clr], (%0)\n\t"
"movq %[clr], 8(%0)\n\t"
"movq %[clr], 16(%0)\n\t"
"movq %[clr], 24(%0)\n\t"
:: "r" (tmp_dst), [clr] "y" (color));
tmp_dst += 32;
width -= 8;
};
if(width >= 4)
{
__asm__ __volatile__
("movq %[clr], (%0)\n\t"
"movq %[clr], 8(%0)\n\t"
:: "r" (tmp_dst), [clr] "y" (color));
tmp_dst += 16;
width -= 4;
};
if (width >= 2)
{
__asm__ __volatile__
("movq %[clr], (%0)\n\t"
:: "r" (tmp_dst), [clr] "y" (color));
tmp_dst += 8;
width -= 2;
};
if(width)
__asm__ __volatile__
("movd %[clr], (%0)\n\t"
:: "r" (tmp_dst), [clr] "y" (color));
};
_mm_empty();
};
int ClearPixmap(pixmap_t *pixmap, color_t color)
{
if( (srv_hw2d != 0) &&
( ((int)pixmap == -1) ||
( (pixmap->flags & PX_MEM_MASK)==PX_MEM_LOCAL) ) )
{
ioctl_t io;
if((int)pixmap != -1)
pixmap = (pixmap_t*)pixmap->handle;
io.handle = srv_hw2d;
io.io_code = PX_CLEAR;
io.input = &pixmap;
io.inp_size = 2;
io.output = NULL;
io.out_size = 0;
return call_service(&io);
}
pixmap = (pixmap == (void*)-1) ? &scrn_pixmap : pixmap ;
pxDraw(pixmap->mapped, pixmap->pitch,
pixmap->width, pixmap->height, color);
return ERR_OK;
};
int Line(pixmap_t *pixmap, int x0, int y0, int x1, int y1, color_t color)
{
clip_t clip;
if( (srv_hw2d != 0) &&
( (pixmap == (void*)-1) ||
( (pixmap->flags & PX_MEM_MASK)==PX_MEM_LOCAL) ) )
{
ioctl_t io;
if((int)pixmap != -1)
pixmap = (pixmap_t*)pixmap->handle;
io.handle = srv_hw2d;
io.io_code = PX_LINE;
io.input = &pixmap;
io.inp_size = 6;
io.output = NULL;
io.out_size = 0;
return call_service(&io);
}
pixmap = (pixmap == (void*)-1) ? &scrn_pixmap : pixmap ;
clip.xmin = 0;
clip.ymin = 0;
clip.xmax = pixmap->width-1;
clip.ymax = pixmap->height-1;
if ( !LineClip( &clip, &x0, &y0, &x1, &y1 ))
{
int dx, dy;
int sx, sy;
int e, e1, e2, e3;
char *addr;
dx = x1 - x0;
dy = y1 - y0;
if( dx || dy)
{
if( dy == 0 )
{
if (dx < 0)
{
dx = -dx;
x0 = x1;
};
addr = &((char*)(pixmap->mapped))[pixmap->pitch*y0 + x0*4];
HLine(addr, dx, color);
return ERR_OK;
};
if( dx == 0 )
{
if (dy < 0)
{
dy = -dy;
y0 = y1;
};
addr = &((char*)(pixmap->mapped))[pixmap->pitch*y0 + x0*4];
while ( dy-- )
{
*(color_t*)addr = color;
addr += pixmap->pitch;
}
return ERR_OK;
}
sx = 4;
if ( dx < 0 )
{
dx = -dx;
sx = -sx;
}
sy = pixmap->pitch;
if ( dy < 0 )
{
dy = -dy;
sy = -sy;
};
addr = &((char*)(pixmap->mapped))[pixmap->pitch*y0 + x0*4];
if (dx > dy)
{
e1 = dy << 1;
e2 = e1 - (dx << 1);
e = e1 - dx;
e3 = e2 - e1;
e = e - e1;
while (dx--)
{
*(color_t*)addr = color;
addr += sx;
e += e1;
if (e >= 0)
{
addr += sy;
e += e3;
}
}
}
else
{
e1 = dx << 1;
e2 = e1 - (dy << 1);
e = e1 - dy;
e3 = e2 - e1;
e = e - e1;
while (dy--)
{
*(color_t*)addr = color;
addr += sy;
e += e1;
if (e >= 0)
{
addr += sx;
e += e3;
}
}
}
} /* ( dx || dy ) */
}
return ERR_OK;
}
int DrawRect(pixmap_t *pixmap, int xorg, int yorg,
int width, int height,
color_t dst_color, color_t border)
{
if( ( width <= 0 ) || ( height<=0 ) )
return ERR_PARAM;
/* if "hardware acceleration present" and
"destinastion is primary screen or local videomemory"
*/
if( (srv_hw2d != 0) &&
( (pixmap == (void*)-1) ||
( (pixmap->flags & PX_MEM_MASK)==PX_MEM_LOCAL) ) )
{
ioctl_t io;
if((int)pixmap != -1)
pixmap = (pixmap_t*)pixmap->handle;
io.handle = srv_hw2d;
io.io_code = PX_DRAW_RECT;
io.input = &pixmap;
io.inp_size = 7;
io.output = NULL;
io.out_size = 0;
return call_service(&io);
}
else
/* no acceleration or destination in system memory */
{
clip_t clip;
int x0, y0, x1, y1, xend, yend;
pixmap = (pixmap == (void*)-1) ? &scrn_pixmap : pixmap ;
x0 = xorg;
y0 = yorg;
xend = x1 = x0 + width - 1;
yend = y1 = y0 + height - 1;
clip.xmin = 0;
clip.ymin = 0;
clip.xmax = pixmap->width-1;
clip.ymax = pixmap->height-1;
if( ! BlockClip( &clip, &x0, &y0, &x1, &y1))
{
int w, h;
char *dst_addr;
w = x1 - x0 + 1;
h = y1 - y0 + 1;
if( (dst_color == border) ||
((border & 0xFF000000)==0))
{
dst_addr = &((char*)(pixmap->mapped))[pixmap->pitch*y0 + x0*4];
pxDraw(dst_addr, pixmap->pitch, w, h, dst_color);
}
else
{
if( y0 == yorg)
{
dst_addr = &((char*)(pixmap->mapped))[pixmap->pitch*y0 + x0*4];
HLine(dst_addr, w, border);
y0++;
h--;
}
if( y1 == yend )
{
dst_addr = &((char*)(pixmap->mapped))[pixmap->pitch*y1 + x0*4];
HLine(dst_addr, w, border);
h--;
}
if( (h > 0) && (x0 == xorg))
{
int dy = h;
dst_addr = &((char*)(pixmap->mapped))[pixmap->pitch*y0 + x0*4];
while ( dy-- )
{
*(color_t*)dst_addr = border;
dst_addr += pixmap->pitch;
}
x0++;
w--;
}
if( (h > 0) && (x1 == xend))
{
int dy = h;
dst_addr = &((char*)(pixmap->mapped))[pixmap->pitch*y0 + x1*4];
while ( dy-- )
{
*(color_t*)dst_addr = border;
dst_addr += pixmap->pitch;
}
w--;
}
if( (w > 0) && (h > 0) )
{
dst_addr = &((char*)(pixmap->mapped))[pixmap->pitch*y0 + x0*4];
pxDraw(dst_addr, pixmap->pitch, w, h, dst_color);
}
}
};
};
return ERR_OK;
};
int FillRect(pixmap_t *pixmap, int xorg, int yorg,
int width, int height,
brush_t *dst_brush, color_t border)
{
if( ( width <= 0 ) || ( height<=0 ) )
return ERR_PARAM;
/* if "hardware acceleration present" and
"destinastion is primary screen or local videomemory"
*/
if( (srv_hw2d != 0) &&
( (pixmap == (void*)-1) ||
( (pixmap->flags & PX_MEM_MASK)==PX_MEM_LOCAL) ) )
{
fill_t fill;
ioctl_t io;
fill.dstpix = ((int)pixmap == -1) ? (pixmap_t*)-1 : (pixmap_t*)pixmap->handle;
fill.x = xorg;
fill.y = yorg;
fill.w = width;
fill.h = height;
fill.bkcolor = dst_brush->bkcolor;
fill.fcolor = dst_brush->fcolor;
fill.bmp0 = dst_brush->bmp[0];
fill.bmp1 = dst_brush->bmp[1];
fill.border = border;
io.handle = srv_hw2d;
io.io_code = PX_FILL_RECT;
io.input = &fill;
io.inp_size = 10;
io.output = NULL;
io.out_size = 0;
return call_service(&io);
}
else
/* no acceleration or destination in system memory */
{
clip_t clip;
int x0, y0, x1, y1, xend, yend;
pixmap = (pixmap == (void*)-1) ? &scrn_pixmap : pixmap ;
x0 = xorg;
y0 = yorg;
x1 = xend = x0 + width - 1;
y1 = yend = y0 + height - 1;
clip.xmin = 0;
clip.ymin = 0;
clip.xmax = pixmap->width-1;
clip.ymax = pixmap->height-1;
if( ! BlockClip( &clip, &x0, &y0, &x1, &y1))
{
int w, h, bh, bm_y;
__m64 clr_bb, clr_bf, clr_fb, clr_ff;
char *dst_addr;
clr_bb = _mm_cvtsi32_si64(dst_brush->bkcolor);
clr_ff = _mm_cvtsi32_si64(dst_brush->fcolor);
clr_bb = _mm_unpacklo_pi32(clr_bb, clr_bb);
clr_ff = _mm_unpacklo_pi32(clr_ff, clr_ff);
clr_bf = _mm_unpacklo_pi32(clr_ff, clr_bb);
clr_fb = _mm_unpacklo_pi32(clr_bb, clr_ff);
w = x1 -x0 + 1;
bh = h = y1 -y0 + 1;
dst_addr = & ((char*)(pixmap->mapped))[pixmap->pitch*y0+x0*4];
bm_y = y0 & 7;
while(h--)
{
u8_t mask = dst_brush->bits[bm_y];
char *tmp_dst = dst_addr;
int width = w;
dst_addr += pixmap->pitch;
bm_y = (bm_y+1) & 7;
while(width>=2)
{
__asm__ __volatile__
("rolb $2, %0 \n\t"
:"+g" (mask):"g"(mask)
:"cc");
switch( mask & 3 )
{
case 0:
__asm__ __volatile__
("movq %[clr], (%0)\n\t" :: "r" (tmp_dst), [clr] "y" (clr_bb));
break;
case 1:
__asm__ __volatile__
("movq %[clr], (%0)\n\t" :: "r" (tmp_dst), [clr] "y" (clr_fb));
break;
case 2:
__asm__ __volatile__
("movq %[clr], (%0)\n\t" :: "r" (tmp_dst), [clr] "y" (clr_bf));
break;
case 3:
__asm__ __volatile__
("movq %[clr], (%0)\n\t" :: "r" (tmp_dst), [clr] "y" (clr_ff));
break;
}
width -=2;
tmp_dst +=8;
}
if( width )
if( mask & 1 )
__asm__ __volatile__
("movd %[clr], (%0)\n\t" :: "r" (tmp_dst), [clr] "y" (clr_ff));
else
__asm__ __volatile__
("movd %[clr], (%0)\n\t" :: "r" (tmp_dst), [clr] "y" (clr_bb));
};
if( (border & 0xFF000000) != 0)
{
if( y0 == yorg)
{
dst_addr = &((char*)(pixmap->mapped))[pixmap->pitch*y0 + x0*4];
HLine(dst_addr, w, border);
y0++;
bh--;
}
if( y1 == yend )
{
dst_addr = &((char*)(pixmap->mapped))[pixmap->pitch*y1 + x0*4];
HLine(dst_addr, w, border);
bh--;
}
if( (bh > 0) && (x0 == xorg))
{
int dy = bh;
dst_addr = &((char*)(pixmap->mapped))[pixmap->pitch*y0 + x0*4];
while ( dy-- )
{
*(color_t*)dst_addr = border;
dst_addr += pixmap->pitch;
}
}
if( (bh > 0) && (x1 == xend))
{
int dy = bh;
dst_addr = &((char*)(pixmap->mapped))[pixmap->pitch*y0 + x1*4];
while ( dy-- )
{
*(color_t*)dst_addr = border;
dst_addr += pixmap->pitch;
}
}
};
_mm_empty();
};
};
return ERR_OK;
};
int Blit(pixmap_t *dst_pixmap, int dst_x, int dst_y,
pixmap_t *src_pixmap, int src_x, int src_y,
int width, int height)
{
clip_t src_clip, dst_clip;
if( ( width <= 0 ) || ( height<=0 ) )
return ERR_PARAM;
/* if "hardware acceleration present" and
"destinastion is primary screen or local videomemory"
*/
if( (srv_hw2d != 0) &&
( (dst_pixmap == (void*)-1) ||
( (dst_pixmap->flags & PX_MEM_MASK)==PX_MEM_LOCAL) ) /* &&
( (src_pixmap == (void*)-1) ||
( (src_pixmap->flags & PX_MEM_MASK)==PX_MEM_LOCAL) ) */ )
{
ioctl_t io;
pxblit_t *blit = (pxblit_t*)&dst_pixmap;
if((int)dst_pixmap != -1)
blit->dst_pixmap = (pixmap_t*)dst_pixmap->handle;
if( (int)src_pixmap != -1 &&
(src_pixmap->flags & PX_MEM_MASK) != PX_MEM_SYSTEM)
blit->src_pixmap = (pixmap_t*)src_pixmap->handle;
io.handle = srv_hw2d;
io.io_code = PX_BLIT;
io.input = blit;
io.inp_size = 8;
io.output = NULL;
io.out_size = 0;
return call_service(&io);
}
dst_pixmap = (dst_pixmap == (void*)-1) ? &scrn_pixmap : dst_pixmap ;
src_pixmap = (src_pixmap == (void*)-1) ? &scrn_pixmap : src_pixmap ;
src_clip.xmin = 0;
src_clip.ymin = 0;
src_clip.xmax = src_pixmap->width-1;
src_clip.ymax = src_pixmap->height-1;
dst_clip.xmin = 0;
dst_clip.ymin = 0;
dst_clip.xmax = dst_pixmap->width-1;
dst_clip.ymax = dst_pixmap->height-1;
if( !blit_clip(&dst_clip, &dst_x, &dst_y,
&src_clip, &src_x, &src_y,
&width, &height) )
{
color_t *src_addr = &((color_t*)(src_pixmap->mapped))[src_pixmap->pitch*src_y/4+src_x];
color_t *dst_addr = &((color_t*)(dst_pixmap->mapped))[dst_pixmap->pitch*dst_y/4+dst_x];
while( height-- )
{
int w = width;
color_t *tmp_src = src_addr;
color_t *tmp_dst = dst_addr;
src_addr += src_pixmap->pitch/4;
dst_addr += dst_pixmap->pitch/4;
while( w >= 8)
{
__asm__ __volatile__ (
"movq (%0), %%mm0\n"
"movq 8(%0), %%mm1\n"
"movq 16(%0), %%mm2\n"
"movq 24(%0), %%mm3\n"
"movq %%mm0, (%1)\n"
"movq %%mm1, 8(%1)\n"
"movq %%mm2, 16(%1)\n"
"movq %%mm3, 24(%1)\n"
:: "r" (tmp_src), "r" (tmp_dst)
: "memory", "%mm0", "%mm1", "%mm2", "%mm3");
w -= 8;
tmp_src += 8;
tmp_dst += 8;
};
if( w >= 4 )
{
__asm__ __volatile__ (
"movq (%0), %%mm0\n"
"movq 8(%0), %%mm1\n"
"movq %%mm0, (%1)\n"
"movq %%mm1, 8(%1)\n"
:: "r" (tmp_src), "r" (tmp_dst)
: "memory", "%mm0", "%mm1");
w -= 4;
tmp_src += 4;
tmp_dst += 4;
};
if( w >= 2 )
{
__asm__ __volatile__ (
"movq (%0), %%mm0\n"
"movq %%mm0, (%1)\n"
:: "r" (tmp_src), "r" (tmp_dst)
: "memory", "%mm0");
w -= 2;
tmp_src += 2;
tmp_dst += 2;
};
if( w )
*tmp_dst = *tmp_src;
};
};
return ERR_OK;
};
int TransparentBlit(pixmap_t *dst_pixmap, int dst_x, int dst_y,
pixmap_t *src_pixmap, int src_x, int src_y,
int width, int height, color_t key)
{
clip_t src_clip, dst_clip;
/* if "hardware acceleration present" and
"destinastion is primary screen or local videomemory" and
"source is primary screen or local videomemory"
*/
if( (srv_hw2d != 0) &&
( (dst_pixmap == (void*)-1) ||
( (dst_pixmap->flags & PX_MEM_MASK)==PX_MEM_LOCAL) ) &&
( (src_pixmap == (void*)-1) ||
( (src_pixmap->flags & PX_MEM_MASK)==PX_MEM_LOCAL) ) )
{
ioctl_t io;
pxblit_t *blit = (pxblit_t*)&dst_pixmap;
if((int)dst_pixmap != -1)
blit->dst_pixmap = (pixmap_t*)dst_pixmap->handle;
if((int)src_pixmap != -1)
blit->src_pixmap = (pixmap_t*)src_pixmap->handle;
io.handle = srv_hw2d;
io.io_code = PX_BLIT_TRANSPARENT;
io.input = blit;
io.inp_size = 9;
io.output = NULL;
io.out_size = 0;
return call_service(&io);
};
dst_pixmap = (dst_pixmap == (void*)-1) ? &scrn_pixmap : dst_pixmap ;
src_pixmap = (src_pixmap == (void*)-1) ? &scrn_pixmap : src_pixmap ;
src_clip.xmin = 0;
src_clip.ymin = 0;
src_clip.xmax = src_pixmap->width-1;
src_clip.ymax = src_pixmap->height-1;
dst_clip.xmin = 0;
dst_clip.ymin = 0;
dst_clip.xmax = dst_pixmap->width-1;
dst_clip.ymax = dst_pixmap->height-1;
if( !blit_clip(&dst_clip, &dst_x, &dst_y,
&src_clip, &src_x, &src_y,
&width, &height) )
{
__m64 clr_key;
color_t *src_addr = &((color_t*)(src_pixmap->mapped))[src_pixmap->pitch*src_y/4+src_x];
color_t *dst_addr = &((color_t*)(dst_pixmap->mapped))[dst_pixmap->pitch*dst_y/4+dst_x];
clr_key = _mm_cvtsi32_si64(key);
clr_key = _mm_unpacklo_pi32(clr_key, clr_key);
while( height-- )
{
int w = width;
color_t *tmp_src = src_addr;
color_t *tmp_dst = dst_addr;
src_addr += src_pixmap->pitch/4;
dst_addr += dst_pixmap->pitch/4;
while( w >= 2)
{
__asm__ __volatile__ (
"movq %[clr_key], %%mm0 \n\t"
"pcmpeqd %[src_clr], %%mm0 \n\t"
"pand %%mm0, %[dst_clr] \n\t"
"pandn %[src_clr], %%mm0 \n\t"
"por %%mm0, %[dst_clr] \n\t"
"movq %[dst_clr], (%0)"
:: "r" (tmp_dst),
[src_clr] "y" (*(__m64*)tmp_src),
[dst_clr] "y" (*(__m64*)tmp_dst),
[clr_key] "y" (clr_key)
:"memory","mm0");
w -= 2;
tmp_src += 2;
tmp_dst += 2;
};
if( w && (*tmp_src != key) )
*tmp_dst = *tmp_src;
};
};
return ERR_OK;
}
unsigned long long m_0080 = 0x0080008000800080ULL;
int BlitAlpha(pixmap_t *dst_pixmap, int dst_x, int dst_y,
pixmap_t *src_pixmap, int src_x, int src_y,
int width, int height, u32_t alpha)
{
clip_t src_clip, dst_clip;
if( (srv_hw2d != 0) &&
( (dst_pixmap == (void*)-1) ||
( (dst_pixmap->flags & PX_MEM_MASK)==PX_MEM_LOCAL) ) &&
( (src_pixmap == (void*)-1) ||
( (src_pixmap->flags & PX_MEM_MASK)==PX_MEM_LOCAL) ) )
{
ioctl_t io;
pxblit_t *blit = (pxblit_t*)&dst_pixmap;
if((int)dst_pixmap != -1)
blit->dst_pixmap = (pixmap_t*)dst_pixmap->handle;
if((int)src_pixmap != -1)
blit->src_pixmap = (pixmap_t*)src_pixmap->handle;
io.handle = srv_hw2d;
io.io_code = PX_BLIT_ALPHA;
io.input = blit;
io.inp_size = 9;
io.output = NULL;
io.out_size = 0;
return call_service(&io);
};
dst_pixmap = (dst_pixmap == (void*)-1) ? &scrn_pixmap : dst_pixmap ;
src_pixmap = (src_pixmap == (void*)-1) ? &scrn_pixmap : src_pixmap ;
src_clip.xmin = 0;
src_clip.ymin = 0;
src_clip.xmax = src_pixmap->width-1;
src_clip.ymax = src_pixmap->height-1;
dst_clip.xmin = 0;
dst_clip.ymin = 0;
dst_clip.xmax = dst_pixmap->width-1;
dst_clip.ymax = dst_pixmap->height-1;
if( !blit_clip(&dst_clip, &dst_x, &dst_y,
&src_clip, &src_x, &src_y,
&width, &height) )
{
__m64 m_alpha;
__m64 m_one_alpha;
color_t *src_addr = &((color_t*)(src_pixmap->mapped))[src_pixmap->pitch*src_y/4+src_x];
color_t *dst_addr = &((color_t*)(dst_pixmap->mapped))[dst_pixmap->pitch*dst_y/4+dst_x];
m_alpha = _mm_cvtsi32_si64((alpha << 16) | alpha);
m_alpha = _mm_unpacklo_pi32(m_alpha, m_alpha);
m_one_alpha = _mm_subs_pu16((__m64)0x00FF00FF00FF00FFULL, m_alpha);
while( height-- )
{
int w = width;
color_t *tmp_src = src_addr;
color_t *tmp_dst = dst_addr;
src_addr += src_pixmap->pitch/4;
dst_addr += dst_pixmap->pitch/4;
while( w-- )
{
__asm__ __volatile__ (
"movd (%0), %%mm0 \n\t"
"pxor %%mm1, %%mm1 \n\t"
"punpcklbw %%mm1, %%mm0 \n\t"
"pmullw %[clr_key], %%mm0 \n\t"
// "paddw %[m_0080], %%mm0 \n\t"
"movd (%1), %%mm2 \n\t"
"punpcklbw %%mm1, %%mm2 \n\t"
"pmullw %[m_one_alpha], %%mm2 \n\t"
// "paddw %[m_0080], %%mm2 \n\t"
"paddw %%mm2, %%mm0 \n\t"
"psrlw $8, %%mm0 \n\t"
"packuswb %%mm0, %%mm0 \n\t"
"movd %%mm0, (%1)"
:: "r" (tmp_src),
"r" (tmp_dst),
[clr_key] "y" (m_alpha),
[m_one_alpha] "y" (m_one_alpha)
:"memory","mm0", "mm1", "mm2");
tmp_src++;
tmp_dst++;
};
// if( w && (*tmp_src != alpha) )
// *tmp_dst = *tmp_src;
};
};
return ERR_OK;
}