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GBLENDER_CHANNEL_VARS(blender,r,g,b);
int h = blit->height;
const unsigned char* src_line = blit->src_line;
unsigned char* dst_line = blit->dst_line;
do
{
const unsigned char* src = src_line + blit->src_x*3;
unsigned char* dst = dst_line + blit->dst_x*GDST_INCR;
int w = blit->width;
do
{
int ab = GBLENDER_SHADE_INDEX(src[0]);
int ag = GBLENDER_SHADE_INDEX(src[1]);
int ar = GBLENDER_SHADE_INDEX(src[2]);
int aa = (ar << 16) | (ag << 8) | ab;
if ( aa == 0 )
{
/* nothing */
}
else if ( aa == ((GBLENDER_SHADE_COUNT << 16) |
(GBLENDER_SHADE_COUNT << 8) |
(GBLENDER_SHADE_COUNT) ) )
{
GDST_COPY(dst);
}
else
{
GBlenderPixel back;
int pix_r, pix_g, pix_b;
GDST_READ(dst,back);
{
int back_r = (back >> 16) & 255;
GBLENDER_LOOKUP_R( blender, back_r );
pix_r = _grcells[ar];
}
{
int back_g = (back >> 8) & 255;
GBLENDER_LOOKUP_G( blender, back_g );
pix_g = _ggcells[ag];
}
{
int back_b = (back) & 255;
GBLENDER_LOOKUP_B( blender, back_b );
pix_b = _gbcells[ab];
}
GDST_STOREC(dst,pix_r,pix_g,pix_b);
}
src += 3;
dst += GDST_INCR;
}
while (--w > 0);
src_line += blit->src_pitch;
dst_line += blit->dst_pitch;
}
while (--h > 0);
GBLENDER_CHANNEL_CLOSE(blender);
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