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desmume
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core: 

- fix textures (ex. Castlevania DOS)
This commit is contained in:
mtabachenko 2008-11-18 09:24:23 +00:00
parent 38958f7998
commit 5ba5bff4d2
1 changed files with 18 additions and 18 deletions
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36
desmume/src/MMU.cpp
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@ -1183,6 +1183,24 @@ void FASTCALL _MMU_write8(u32 adr, u8 val)
case REG_VRAMCNTD:
if(proc == ARMCPU_ARM9)
{
//
// FIXME: simply texture slot handling
// This is a first stab and is not correct. It does
// not handle a VRAM texture slot becoming
// unconfigured.
// Revisit all of VRAM control handling for future
// release?
//
if ( val & 0x80) {
if ( (val & 0x7) == 3) {
int slot_index = (val >> 3) & 0x3;
ARM9Mem.textureSlotAddr[slot_index] =
&ARM9Mem.ARM9_LCD[0x20000 * (adr - REG_VRAMCNTA)];
gpu3D->NDS_3D_VramReconfigureSignal();
}
}
if (MMU_checkVRAM(adr-REG_VRAMCNTA, val) == 1) break;
MMU_VRAMWriteBackToLCD(adr-REG_VRAMCNTA) ;
@ -1212,24 +1230,6 @@ void FASTCALL _MMU_write8(u32 adr, u8 val)
MMU.vram_mode[adr-REG_VRAMCNTA] = 4 | (adr-REG_VRAMCNTA) ;
break ;
}
//
// FIXME: simply texture slot handling
// This is a first stab and is not correct. It does
// not handle a VRAM texture slot becoming
// unconfigured.
// Revisit all of VRAM control handling for future
// release?
//
if ( val & 0x80) {
if ( (val & 0x7) == 3) {
int slot_index = (val >> 3) & 0x3;
ARM9Mem.textureSlotAddr[slot_index] =
&ARM9Mem.ARM9_LCD[0x20000 * (adr - REG_VRAMCNTA)];
gpu3D->NDS_3D_VramReconfigureSignal();
}
}
MMU_VRAMReloadFromLCD(adr-REG_VRAMCNTA,val) ;
}
break;