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Add Counting functions, more on SetPalette

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This commit is contained in:
Joshua Peisach 2023-12-26 17:18:03 -05:00
parent 8a7d9fbff7
commit 9ef049419b
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GPG Key ID: 41C3D4189AFEDB5A
1 changed files with 54 additions and 2 deletions
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56
LEGO1/mxdisplaysurface.cpp
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@ -72,6 +72,36 @@ void MxDisplaySurface::FUN_100ba640()
}
}
// OFFSET: LEGO1 0x100ba750
byte CountTotalBitsSetTo1(MxU32 p_param)
{
MxU32 a;
byte i = 0;
if(p_param) {
do {
a = i >> 1;
i += ((byte)p_param & 1);
p_param = a;
} while (a != 0);
}
return i;
}
// OFFSET: LEGO1 0x100ba770
byte CountContiguousBitsSetTo1(MxU32 p_param)
{
MxU32 u;
byte count = 0;
u = p_param & 1;
while(u == 0) {
p_param >>= 1;
count++;
u = p_param & 1;
}
return count;
}
// FUNCTION: LEGO1 0x100ba790
MxResult MxDisplaySurface::Init(
MxVideoParam& p_videoParam,
@ -223,13 +253,19 @@ void MxDisplaySurface::SetPalette(MxPalette* p_palette)
HDC hdc;
HPALETTE hpal;
LOGPALETTE lpal;
byte bVar2;
byte bVar3;
byte bVar4;
byte bVar5;
byte bVar6;
byte bVar7;
if((this->m_surfaceDesc).ddpfPixelFormat.dwFlags & 0x20) {
this->m_ddSurface1->SetPalette(p_palette->CreateNativePalette());
this->m_ddSurface2->SetPalette(p_palette->CreateNativePalette());
if(((this->m_videoParam).Flags().GetFlipSurfaces()) == 0) {
lpal.palVersion = 0x300;
lpal.palNumEntries = 256;
// FIXME: this loop
// FIXME: this loop is probably incorrect
memset(lpal.palPalEntry, lpal.palNumEntries, 0);
hpal = CreatePalette(&lpal);
@ -240,7 +276,23 @@ void MxDisplaySurface::SetPalette(MxPalette* p_palette)
DeleteObject(hpal);
}
}
// TODO: Second half of this function
if((this->m_surfaceDesc).ddpfPixelFormat.dwRGBBitCount == 16) {
if(this->m_16bitPal == NULL) {
this->m_16bitPal = new MxU16; // FIXME: malloc size 512;
}
p_palette->GetEntries((PALETTEENTRY*) &lpal); // ?
// inferred
bVar2 = CountContiguousBitsSetTo1((this->m_surfaceDesc).ddpfPixelFormat.dwYUVBitCount);
bVar3 = CountTotalBitsSetTo1((this->m_surfaceDesc).ddpfPixelFormat.dwYUVBitCount);
bVar4 = CountContiguousBitsSetTo1((this->m_surfaceDesc).ddpfPixelFormat.dwZBufferBitDepth);
bVar5 = CountTotalBitsSetTo1((this->m_surfaceDesc).ddpfPixelFormat.dwZBufferBitDepth);
bVar6 = CountContiguousBitsSetTo1((this->m_surfaceDesc).ddpfPixelFormat.dwAlphaBitDepth);
bVar7 = CountTotalBitsSetTo1((this->m_surfaceDesc).ddpfPixelFormat.dwAlphaBitDepth);
MxS32 i = 0;
// A while loop here then thats it
}
}
// STUB: LEGO1 0x100bacc0