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Fix reported memory caps of primary surface

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Changed primary surface caps to report video memory in case the surface
was only forced into system memory by DDrawCompat.

Fixes startup issues in C&C 95 and Red Alert, reported in issue #3.
This commit is contained in:
narzoul 2017-08-06 21:42:24 +02:00
parent e3396a18b8
commit 8ab8058ceb
3 changed files with 18 additions and 8 deletions
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12
DDrawCompat/DDraw/Surfaces/PrimarySurface.cpp
View File

@ -10,7 +10,7 @@ namespace
DDSURFACEDESC2 g_primarySurfaceDesc = {};
CompatWeakPtr<IDirectDrawSurface> g_gdiSurface = nullptr;
CompatWeakPtr<IDirectDrawSurface> g_primarySurface = nullptr;
bool g_isFlipEmulated = false;
DWORD g_origCaps = 0;
}
namespace DDraw
@ -26,7 +26,7 @@ namespace DDraw
g_gdiSurface = nullptr;
g_primarySurface = nullptr;
g_isFlipEmulated = false;
g_origCaps = 0;
s_palette = nullptr;
s_surfaceBuffers.clear();
ZeroMemory(&s_paletteEntries, sizeof(s_paletteEntries));
@ -46,6 +46,8 @@ namespace DDraw
return result;
}
const DWORD origCaps = desc.ddsCaps.dwCaps;
const auto& dm = DDraw::getDisplayMode(*CompatPtr<IDirectDraw7>::from(&dd));
desc.dwFlags |= DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT;
desc.dwWidth = dm.dwWidth;
@ -69,7 +71,7 @@ namespace DDraw
CompatPtr<IDirectDrawSurface> surface1(Compat::queryInterface<IDirectDrawSurface>(surface));
g_gdiSurface = surface1;
g_primarySurface = surface1;
g_isFlipEmulated = 0 != (desc.ddsCaps.dwCaps & DDSCAPS_SYSTEMMEMORY);
g_origCaps = origCaps;
ZeroMemory(&g_primarySurfaceDesc, sizeof(g_primarySurfaceDesc));
g_primarySurfaceDesc.dwSize = sizeof(g_primarySurfaceDesc);
@ -130,9 +132,9 @@ namespace DDraw
Compat::queryInterface<IDirectDrawSurface7>(g_primarySurface.get()));
}
bool PrimarySurface::isFlipEmulated()
DWORD PrimarySurface::getOrigCaps()
{
return g_isFlipEmulated;
return g_origCaps;
}
void PrimarySurface::resizeBuffers(CompatRef<IDirectDrawSurface7> surface)

2
DDrawCompat/DDraw/Surfaces/PrimarySurface.h
View File

@ -20,7 +20,7 @@ namespace DDraw
static const DDSURFACEDESC2& getDesc();
static CompatPtr<IDirectDrawSurface7> getGdiSurface();
static CompatPtr<IDirectDrawSurface7> getPrimary();
static bool isFlipEmulated();
static DWORD getOrigCaps();
void updateGdiSurfacePtr(IDirectDrawSurface* flipTargetOverride);

12
DDrawCompat/DDraw/Surfaces/PrimarySurfaceImpl.cpp
View File

@ -10,6 +10,13 @@ namespace
{
caps &= ~DDSCAPS_OFFSCREENPLAIN;
caps |= DDSCAPS_PRIMARYSURFACE | DDSCAPS_VISIBLE;
if ((caps & DDSCAPS_SYSTEMMEMORY) &&
!(DDraw::PrimarySurface::getOrigCaps() & DDSCAPS_SYSTEMMEMORY))
{
caps &= ~DDSCAPS_SYSTEMMEMORY;
caps |= DDSCAPS_VIDEOMEMORY | DDSCAPS_LOCALVIDMEM;
}
}
}
@ -85,8 +92,9 @@ namespace DDraw
return result;
}
const bool isFlipEmulated = 0 != (PrimarySurface::getOrigCaps() & DDSCAPS_SYSTEMMEMORY);
result = RealPrimarySurface::flip(dwFlags);
if (SUCCEEDED(result) && !PrimarySurface::isFlipEmulated())
if (SUCCEEDED(result) && !isFlipEmulated)
{
static_cast<PrimarySurface*>(m_data)->updateGdiSurfacePtr(
CompatPtr<IDirectDrawSurface>::from(lpDDSurfaceTargetOverride));
@ -95,7 +103,7 @@ namespace DDraw
undoFlip(This, lpDDSurfaceTargetOverride);
if (SUCCEEDED(result) && PrimarySurface::isFlipEmulated())
if (SUCCEEDED(result) && isFlipEmulated)
{
if (lpDDSurfaceTargetOverride)
{