From 442b6c3f575fb99aa797c68c863a68f28dea040d Mon Sep 17 00:00:00 2001
From: FunkyFr3sh <cc.red.alert.1@googlemail.com>
Date: Thu, 6 May 2021 00:15:47 +0200
Subject: [PATCH] some experimental code for Capitalism2/CapLab
---
src/ddsurface.c | 33 +++++++++++++++++++++------------
1 file changed, 21 insertions(+), 12 deletions(-)
diff --git a/src/ddsurface.c b/src/ddsurface.c
index 85db767..6dc684c 100644
--- a/src/ddsurface.c
+++ b/src/ddsurface.c
@@ -15,6 +15,15 @@
HRESULT dds_AddAttachedSurface(IDirectDrawSurfaceImpl *This, LPDIRECTDRAWSURFACE lpDDSurface)
{
IDirectDrawSurface_AddRef(lpDDSurface);
+
+ if (g_ddraw->backbuffer && !This->backbuffer)
+ {
+ IDirectDrawSurfaceImpl* surface = (IDirectDrawSurfaceImpl*)lpDDSurface;
+ surface->caps |= DDSCAPS_BACKBUFFER;
+
+ This->backbuffer = surface;
+ }
+
return DD_OK;
}
@@ -672,21 +681,21 @@ HRESULT dds_EnumAttachedSurfaces(IDirectDrawSurfaceImpl *This, LPVOID lpContext,
HRESULT dds_Flip(IDirectDrawSurfaceImpl *This, LPDIRECTDRAWSURFACE surface, DWORD flags)
{
- if(This->caps & DDSCAPS_PRIMARYSURFACE && g_ddraw->render.run)
+ if (This->backbuffer)
{
- if (This->backbuffer)
- {
- EnterCriticalSection(&g_ddraw->cs);
- void* surface = InterlockedExchangePointer(&This->surface, This->backbuffer->surface);
- HBITMAP bitmap = (HBITMAP)InterlockedExchangePointer(&This->bitmap, This->backbuffer->bitmap);
- HDC hdc = (HDC)InterlockedExchangePointer(&This->hdc, This->backbuffer->hdc);
+ EnterCriticalSection(&g_ddraw->cs);
+ void* surface = InterlockedExchangePointer(&This->surface, This->backbuffer->surface);
+ HBITMAP bitmap = (HBITMAP)InterlockedExchangePointer(&This->bitmap, This->backbuffer->bitmap);
+ HDC hdc = (HDC)InterlockedExchangePointer(&This->hdc, This->backbuffer->hdc);
- InterlockedExchangePointer(&This->backbuffer->surface, surface);
- InterlockedExchangePointer(&This->backbuffer->bitmap, bitmap);
- InterlockedExchangePointer(&This->backbuffer->hdc, hdc);
- LeaveCriticalSection(&g_ddraw->cs);
- }
+ InterlockedExchangePointer(&This->backbuffer->surface, surface);
+ InterlockedExchangePointer(&This->backbuffer->bitmap, bitmap);
+ InterlockedExchangePointer(&This->backbuffer->hdc, hdc);
+ LeaveCriticalSection(&g_ddraw->cs);
+ }
+ if (This->caps & DDSCAPS_PRIMARYSURFACE && g_ddraw->render.run)
+ {
This->last_flip_tick = timeGetTime();
InterlockedExchange(&g_ddraw->render.surface_updated, TRUE);