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Add ogalibert's alpha blending adjustments.

This commit is contained in:
iq_132 2014-09-16 17:34:45 +00:00
parent 891eeebe63
commit f9fba7e5cf
1 changed files with 28 additions and 18 deletions
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46
src/burn/drv/pst90s/d_raiden2.cpp
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@ -1485,23 +1485,33 @@ static INT32 MemIndex()
return 0;
}
static void DrvCreateAlphaTable()
static void DrvCreateAlphaTable(INT32 raiden2_alpha)
{
const UINT8 alpha_active[0x10] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x3f, 0x73, 0xff, 0x7c, 0xff, 0xff, 0x4f
};
memset (DrvAlphaTable, 0, 0x800);
for(int val = 0; val < 0x800; val++) {
DrvAlphaTable[val] = 0;
if (raiden2_alpha) {
DrvAlphaTable[0x380] = 1;
DrvAlphaTable[0x5de] = 1;
DrvAlphaTable[0x75c] = 1;
if ((val & 0x8) == 0x8 && (val & 0xf) != 0xf && (alpha_active[val >> 7] & (0x80 >> ((val >> 4) & 7)))) {
DrvAlphaTable[val] = 1;
}
}
memset (DrvAlphaTable + 0x3c0, 1, 0x30);
memset (DrvAlphaTable + 0x4f8, 1, 0x08);
memset (DrvAlphaTable + 0x5c8, 1, 0x08);
memset (DrvAlphaTable + 0x5f8, 1, 0x08);
if (game_select == 0 || game_select == 1) {
memset (DrvAlphaTable + 0x380, 1, 8); // thrusters in intro (after going vertical)
memset (DrvAlphaTable + 0x3d0, 1, 8); // thrusters in intro (before going vertical)
memset (DrvAlphaTable + 0x6c8, 1, 0x08);
memset (DrvAlphaTable + 0x6d8, 1, 0x08);
memset (DrvAlphaTable + 0x6e8, 1, 0x08);
memset (DrvAlphaTable + 0x6f8, 1, 0x08);
memset (DrvAlphaTable + 0x70d, 1, 0x02);
memset (DrvAlphaTable + 0x71c, 1, 0x03);
memset (DrvAlphaTable + 0x72d, 1, 0x02);
memset (DrvAlphaTable + 0x73d, 1, 0x02);
memset (DrvAlphaTable + 0x74d, 1, 0x02);
memset (DrvAlphaTable + 0x76c, 1, 0x03);
memset (DrvAlphaTable + 0x77d, 1, 0x02);
memset (DrvAlphaTable + 0x7c8, 1, 0x08);
}
}
@ -1902,7 +1912,7 @@ static INT32 Raiden2Init()
raiden2_decrypt_sprites();
DrvGfxDecode();
DrvCreateTransTab();
DrvCreateAlphaTable();
DrvCreateAlphaTable(1);
}
raiden2_common_map();
@ -1965,7 +1975,7 @@ static INT32 Raiden2aInit() // alternate rom layout
raiden2_decrypt_sprites();
DrvGfxDecode();
DrvCreateTransTab();
DrvCreateAlphaTable();
DrvCreateAlphaTable(1);
}
raiden2_common_map();
@ -2028,7 +2038,7 @@ static INT32 RaidendxInit()
raiden2_decrypt_sprites();
DrvGfxDecode();
DrvCreateTransTab();
DrvCreateAlphaTable();
DrvCreateAlphaTable(1);
}
VezInit(0, V30_TYPE);
@ -2123,7 +2133,7 @@ static INT32 ZeroteamInit()
zeroteam_decrypt_sprites();
DrvGfxDecode();
DrvCreateTransTab();
DrvCreateAlphaTable();
DrvCreateAlphaTable(0);
}
zeroteam_common_map();
@ -2183,7 +2193,7 @@ static INT32 XsedaeInit()
DrvGfxDecode();
DrvCreateTransTab();
DrvCreateAlphaTable();
DrvCreateAlphaTable(0);
}
zeroteam_common_map();