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Fixes to correctly load mmx version of scale2x

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@743
This commit is contained in:
Sjoerd van der Berg 2003-03-11 00:03:56 +00:00
parent fbda2d52aa
commit d24b927f52
1 changed files with 18 additions and 1 deletions
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19
src/gui/render_scale2x.h
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@ -510,6 +510,24 @@ static void scale2x_line_8_mmx(scale2x_uint8* dst0, scale2x_uint8* dst1, const s
scale2x_8_mmx_single(dst1, src2, src1, src0, count);
}
static void Scale2x_8_mmx(Bit8u * src,Bitu x,Bitu y,Bitu dx,Bitu dy) {
if (dy<3) return;
Bit8u * dest=(Bit8u *)render.op.pixels+2*y*render.op.pitch;
/* First line */
scale2x_line_8_mmx(dest,dest+render.op.pitch,src,src,src+render.src.pitch,dx);
dest+=render.op.pitch*2;
src+=render.src.pitch;
dy-=2;
/* Middle part */
for (;dy>0;dy--) {
scale2x_line_8_mmx((Bit8u *)dest,(Bit8u *)(dest+render.op.pitch),src-render.src.pitch,src,src+render.src.pitch,dx);
dest+=render.op.pitch*2;
src+=render.src.pitch;
}
/* Last Line */
scale2x_line_8_mmx((Bit8u *)dest,(Bit8u *)(dest+render.op.pitch),src-render.src.pitch,src,src,dx);
}
#endif
static void Render_Scale2x_CallBack(Bitu width,Bitu height,Bitu bpp,Bitu pitch,Bitu flags) {
@ -519,7 +537,6 @@ static void Render_Scale2x_CallBack(Bitu width,Bitu height,Bitu bpp,Bitu pitch,B
render.op.bpp=bpp;
render.op.pitch=pitch;
render.op.type=OP_Scale2x;
render.op.part_handler=Scale2x_8;
#if defined(SCALE2X_NORMAL)
switch (bpp) {
case 8: