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fixed overscan color in shadow/highlight mode (always use half intensity)

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removed useless color updates (entry 0 of each palette is never displayed)
This commit is contained in:
ekeeke31 2009-11-13 12:15:51 +00:00
parent 7d72dfc687
commit 46fa9f1849
2 changed files with 11 additions and 7 deletions
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7
source/render.c
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@ -1838,14 +1838,11 @@ void render_line(uint32 line, uint32 overscan)
}
}
/* Mode 4 feature only (unemulated, no games rely on this) */
/*if(!(reg[1] & 0x04) && (reg[0] & 0x20)) memset(&lb[0x20], 0x40, 0x08);*/
/* borders */
if (x_offset)
{
memset(&lb[0x20 - x_offset], 0x40, x_offset);
memset(&lb[0x20 + width], 0x40, x_offset);
memset(&lb[0x20 - x_offset], 0x00, x_offset);
memset(&lb[0x20 + width], 0x00, x_offset);
width += 2 * x_offset;
}
}

11
source/vdp.c
View File

@ -669,8 +669,15 @@ static inline void data_w(unsigned int data)
{
int index = (addr >> 1) & 0x3F;
*p = data;
if (index) color_update (index, *p);
if (border == index) color_update (0x00, *p);
/* update color palette */
/* color entry 0 of each palette is never displayed (transparent pixel) */
if (index & 0x0F)
color_update(index, *p);
/* update background color */
if (border == index)
color_update (0x00, *p);
/* CRAM modified during HBLANK */
if (!(status & 8) && (reg[1]&0x40) && (count_m68k <= (line_m68k + 84)))