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WIP fixes

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This commit is contained in:
Christian Semmler 2024-01-20 13:30:26 -05:00
parent 0c01fd7981
commit c92e0c8cbf
1 changed files with 110 additions and 108 deletions
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26
LEGO1/omni/src/video/mxdisplaysurface.cpp
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@ -591,7 +591,7 @@ LPDIRECTDRAWSURFACE MxDisplaySurface::VTable0x44(
ddsd.ddsCaps.dwCaps = DDSCAPS_SYSTEMMEMORY | DDSCAPS_OFFSCREENPLAIN;
if (draw->CreateSurface(&ddsd, &surface, NULL) != S_OK) {
if (!*p_ret) {
if (*p_ret) {
*p_ret = 0;
// Try creating bitmap surface in vram if system ram ran out
@ -602,28 +602,24 @@ LPDIRECTDRAWSURFACE MxDisplaySurface::VTable0x44(
surface = NULL;
}
}
else
surface = NULL;
}
if (!surface) {
return NULL;
}
if (surface) {
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
if (surface->Lock(NULL, &ddsd, 1, 0) != S_OK) {
if (surface->Lock(NULL, &ddsd, DDLOCK_WAIT, 0) != S_OK) {
surface->Release();
return NULL;
surface = NULL;
goto done;
}
if (p_doNotWriteToSurface) {
return surface;
goto done;
}
BITMAPINFOHEADER* hdr = p_bitmap->GetBmiHeader();
MxU32 rowsBeforeTop;
MxU8* bitmapSrcPtr;
// The goal here is to enable us to walk through the bitmap's rows
// in order, regardless of the orientation. We want to end up at the
// start of the first row, which is either at position 0, or at
@ -632,8 +628,10 @@ LPDIRECTDRAWSURFACE MxDisplaySurface::VTable0x44(
// Reminder: Negative biHeight means this is a top-down DIB.
// Otherwise it is bottom-up.
MxU8* bitmapSrcPtr;
switch (p_bitmap->GetBmiHeader()->biCompression) {
case BI_RGB: {
MxS32 rowsBeforeTop;
if (p_bitmap->GetBmiHeight() < 0)
rowsBeforeTop = 0;
else
@ -645,6 +643,7 @@ LPDIRECTDRAWSURFACE MxDisplaySurface::VTable0x44(
bitmapSrcPtr = p_bitmap->GetBitmapData();
break;
default: {
MxS32 rowsBeforeTop;
if (p_bitmap->GetBmiHeight() < 0)
rowsBeforeTop = 0;
else
@ -664,6 +663,7 @@ LPDIRECTDRAWSURFACE MxDisplaySurface::VTable0x44(
MxS32 rowSeek = ((p_bitmap->GetBmiWidth() + 3) & -4);
if (p_bitmap->GetBmiHeader()->biCompression != BI_RGB_TOPDOWN && p_bitmap->GetBmiHeight() >= 0)
rowSeek = -rowSeek;
MxU32 newPitch = ddsd.lPitch;
switch (ddsd.ddpfPixelFormat.dwRGBBitCount) {
case 8: {
@ -726,7 +726,9 @@ LPDIRECTDRAWSURFACE MxDisplaySurface::VTable0x44(
surface->Unlock(ddsd.lpSurface);
}
}
}
done:
return surface;
}