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This commit is contained in:
David Haywood 2013-03-16 01:07:34 +00:00
parent 92f99c246d
commit 1d23fc7bd9
1 changed files with 26 additions and 50 deletions
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76
src/mame/video/deco_mlc.c
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@ -80,7 +80,12 @@ static void mlc_drawgfxzoomline(
myclip = clip;
myclip &= dest_bmp.cliprect();
if( usey < myclip.min_y )
return;
if( usey > myclip.max_y+1 )
return;
const pen_t *pal = &gfx->machine().pens[gfx->colorbase() + gfx->granularity() * (color % gfx->colors())];
const UINT8 *code_base1 = gfx->get_data(code1 % gfx->elements());
const UINT8 *code_base2 = gfx->get_data(code2 % gfx->elements());
@ -88,7 +93,6 @@ static void mlc_drawgfxzoomline(
int sprite_screen_width = (scalex*16+(sx&0xffff))>>16;
sx>>=16;
int sy = usey;
if (sprite_screen_width)
{
/* compute sprite increment per screen pixel */
@ -125,67 +129,39 @@ static void mlc_drawgfxzoomline(
if( ex>sx )
{ /* skip if inner loop doesn't draw anything */
int y;
/* case 1: no alpha */
/* no alpha */
if (alpha == 0xff)
{
y = sy;
if( y < myclip.min_y )
return;
if( y > myclip.max_y+1 )
return;
const UINT8 *source1 = code_base1 + (srcline) * gfx->rowbytes();
const UINT8 *source2 = code_base2 + (srcline) * gfx->rowbytes();
UINT32 *dest = &dest_bmp.pix32(usey);
int x, x_index = x_index_base;
for( x=sx; x<ex; x++ )
{
const UINT8 *source1 = code_base1 + (srcline) * gfx->rowbytes();
const UINT8 *source2 = code_base2 + (srcline) * gfx->rowbytes();
UINT32 *dest = &dest_bmp.pix32(y);
int c = source1[x_index>>16];
if (use8bpp)
c=(c<<4)|source2[x_index>>16];
int x, x_index = x_index_base;
if( c != transparent_color ) dest[x] = pal[c];
for( x=sx; x<ex; x++ )
{
int c = source1[x_index>>16];
if (use8bpp)
c=(c<<4)|source2[x_index>>16];
if( c != transparent_color ) dest[x] = pal[c];
x_index += dx;
}
}
x_index += dx;
}
}
/* case 6: alpha blended */
else
{
y = sy;
if( y < myclip.min_y )
return;
if( y > myclip.max_y+1 )
return;
const UINT8 *source = code_base1 + (srcline) * gfx->rowbytes();
UINT32 *dest = &dest_bmp.pix32(usey);
int x, x_index = x_index_base;
for( x=sx; x<ex; x++ )
{
const UINT8 *source = code_base1 + (srcline) * gfx->rowbytes();
UINT32 *dest = &dest_bmp.pix32(y);
int x, x_index = x_index_base;
for( x=sx; x<ex; x++ )
{
int c = source[x_index>>16];
if( c != transparent_color ) dest[x] = alpha_blend_r32(dest[x], 0, alpha); //pal[c]);
x_index += dx;
}
int c = source[x_index>>16];
if( c != transparent_color ) dest[x] = alpha_blend_r32(dest[x], 0, alpha); //pal[c]);
x_index += dx;
}
}
}
}
@ -404,7 +380,7 @@ void deco_mlc_state::draw_sprites( bitmap_rgb32 &bitmap,const rectangle &cliprec
int dy = (16<<16)/sprite_screen_height;
int counter = 0;
for (int y=realybase;y<ey;y++)
{