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create backbuffer for flip games

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This commit is contained in:
FunkyFr3sh 2021-05-04 22:49:22 +02:00
parent 9717d7b906
commit ae4446becb
9 changed files with 109 additions and 34 deletions
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115
src/ddsurface.c
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@ -75,10 +75,12 @@ HRESULT dds_Blt(IDirectDrawSurfaceImpl *This, LPRECT lpDestRect, LPDIRECTDRAWSUR
int dst_x = dst_rect.left;
int dst_y = dst_rect.top;
void* dst_buf = dds_GetBuffer(This);
void* src_buf = dds_GetBuffer(src_surface);
if (This->surface && (dwFlags & DDBLT_COLORFILL) && dst_w > 0 && dst_h > 0)
if (dst_buf && (dwFlags & DDBLT_COLORFILL) && dst_w > 0 && dst_h > 0)
{
unsigned char *dst = (unsigned char *)This->surface + (dst_x * This->lx_pitch) + (This->l_pitch * dst_y);
unsigned char *dst = (unsigned char *)dst_buf + (dst_x * This->lx_pitch) + (This->l_pitch * dst_y);
unsigned char *first_row = dst;
unsigned int dst_pitch = dst_w * This->lx_pitch;
int x, i;
@ -151,11 +153,11 @@ HRESULT dds_Blt(IDirectDrawSurfaceImpl *This, LPRECT lpDestRect, LPDIRECTDRAWSUR
for (x1 = 0; x1 < width; x1++)
{
unsigned char c = ((unsigned char *)src_surface->surface)[x1 + src_x + ysrc];
unsigned char c = ((unsigned char *)src_buf)[x1 + src_x + ysrc];
if (c < color_key.dwColorSpaceLowValue || c > color_key.dwColorSpaceHighValue)
{
((unsigned char *)This->surface)[x1 + dst_x + ydst] = c;
((unsigned char *)dst_buf)[x1 + dst_x + ydst] = c;
}
}
}
@ -170,11 +172,11 @@ HRESULT dds_Blt(IDirectDrawSurfaceImpl *This, LPRECT lpDestRect, LPDIRECTDRAWSUR
for (x1 = 0; x1 < width; x1++)
{
unsigned short c = ((unsigned short *)src_surface->surface)[x1 + src_x + ysrc];
unsigned short c = ((unsigned short *)src_buf)[x1 + src_x + ysrc];
if (c < color_key.dwColorSpaceLowValue || c > color_key.dwColorSpaceHighValue)
{
((unsigned short *)This->surface)[x1 + dst_x + ydst] = c;
((unsigned short *)dst_buf)[x1 + dst_x + ydst] = c;
}
}
}
@ -193,10 +195,10 @@ HRESULT dds_Blt(IDirectDrawSurfaceImpl *This, LPRECT lpDestRect, LPDIRECTDRAWSUR
int height = dst_h > src_h ? src_h : dst_h;
unsigned char *src =
(unsigned char *)src_surface->surface + (src_x * src_surface->lx_pitch) + (src_surface->l_pitch * src_y);
(unsigned char *)src_buf + (src_x * src_surface->lx_pitch) + (src_surface->l_pitch * src_y);
unsigned char *dst =
(unsigned char *)This->surface + (dst_x * This->lx_pitch) + (This->l_pitch * dst_y);
(unsigned char *)dst_buf + (dst_x * This->lx_pitch) + (This->l_pitch * dst_y);
unsigned int dst_pitch = width * This->lx_pitch;
@ -316,8 +318,8 @@ HRESULT dds_Blt(IDirectDrawSurfaceImpl *This, LPRECT lpDestRect, LPDIRECTDRAWSUR
if (This->bpp == 8)
{
unsigned char *d, *s, v;
unsigned char *src = (unsigned char *)src_surface->surface;
unsigned char *dst = (unsigned char *)This->surface;
unsigned char *src = (unsigned char *)src_buf;
unsigned char *dst = (unsigned char *)dst_buf;
do {
switch (current->type)
@ -355,8 +357,8 @@ HRESULT dds_Blt(IDirectDrawSurfaceImpl *This, LPRECT lpDestRect, LPDIRECTDRAWSUR
else if (This->bpp == 16)
{
unsigned short *d, *s, v;
unsigned short *src = (unsigned short *)src_surface->surface;
unsigned short *dst = (unsigned short *)This->surface;
unsigned short *src = (unsigned short *)src_buf;
unsigned short *dst = (unsigned short *)dst_buf;
do {
switch (current->type)
@ -466,6 +468,9 @@ HRESULT dds_BltFast(IDirectDrawSurfaceImpl *This, DWORD dst_x, DWORD dst_y, LPDI
int dst_w = dst_rect.right - dst_rect.left;
int dst_h = dst_rect.bottom - dst_rect.top;
void* dst_buf = dds_GetBuffer(This);
void* src_buf = dds_GetBuffer(src_surface);
if (src_surface && dst_w > 0 && dst_h > 0)
{
if (flags & DDBLTFAST_SRCCOLORKEY)
@ -480,11 +485,11 @@ HRESULT dds_BltFast(IDirectDrawSurfaceImpl *This, DWORD dst_x, DWORD dst_y, LPDI
for (x1 = 0; x1 < dst_w; x1++)
{
unsigned char c = ((unsigned char *)src_surface->surface)[x1 + src_x + ysrc];
unsigned char c = ((unsigned char *)src_buf)[x1 + src_x + ysrc];
if (c < src_surface->color_key.dwColorSpaceLowValue || c > src_surface->color_key.dwColorSpaceHighValue)
{
((unsigned char *)This->surface)[x1 + dst_x + ydst] = c;
((unsigned char *)dst_buf)[x1 + dst_x + ydst] = c;
}
}
}
@ -499,11 +504,11 @@ HRESULT dds_BltFast(IDirectDrawSurfaceImpl *This, DWORD dst_x, DWORD dst_y, LPDI
for (x1 = 0; x1 < dst_w; x1++)
{
unsigned short c = ((unsigned short *)src_surface->surface)[x1 + src_x + ysrc];
unsigned short c = ((unsigned short *)src_buf)[x1 + src_x + ysrc];
if (c < src_surface->color_key.dwColorSpaceLowValue || c > src_surface->color_key.dwColorSpaceHighValue)
{
((unsigned short *)This->surface)[x1 + dst_x + ydst] = c;
((unsigned short *)dst_buf)[x1 + dst_x + ydst] = c;
}
}
}
@ -512,10 +517,10 @@ HRESULT dds_BltFast(IDirectDrawSurfaceImpl *This, DWORD dst_x, DWORD dst_y, LPDI
else
{
unsigned char *src =
(unsigned char *)src_surface->surface + (src_x * src_surface->lx_pitch) + (src_surface->l_pitch * src_y);
(unsigned char *)src_buf + (src_x * src_surface->lx_pitch) + (src_surface->l_pitch * src_y);
unsigned char *dst =
(unsigned char *)This->surface + (dst_x * This->lx_pitch) + (This->l_pitch * dst_y);
(unsigned char *)dst_buf + (dst_x * This->lx_pitch) + (This->l_pitch * dst_y);
unsigned int dst_pitch = dst_w * This->lx_pitch;
@ -591,7 +596,7 @@ HRESULT dds_GetSurfaceDesc(IDirectDrawSurfaceImpl *This, LPDDSURFACEDESC lpDDSur
lpDDSurfaceDesc->dwWidth = This->width;
lpDDSurfaceDesc->dwHeight = This->height;
lpDDSurfaceDesc->lPitch = This->l_pitch;
lpDDSurfaceDesc->lpSurface = This->surface;
lpDDSurfaceDesc->lpSurface = dds_GetBuffer(This);
lpDDSurfaceDesc->ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
lpDDSurfaceDesc->ddpfPixelFormat.dwFlags = DDPF_RGB;
lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount = This->bpp;
@ -634,6 +639,19 @@ HRESULT dds_Flip(IDirectDrawSurfaceImpl *This, LPDIRECTDRAWSURFACE surface, DWOR
{
if(This->caps & DDSCAPS_PRIMARYSURFACE && g_ddraw->render.run)
{
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);
InterlockedExchangePointer(&This->backbuffer->surface, surface);
InterlockedExchangePointer(&This->backbuffer->bitmap, bitmap);
InterlockedExchangePointer(&This->backbuffer->hdc, hdc);
LeaveCriticalSection(&g_ddraw->cs);
}
This->last_flip_tick = timeGetTime();
InterlockedExchange(&g_ddraw->render.surface_updated, TRUE);
@ -659,8 +677,16 @@ HRESULT dds_GetAttachedSurface(IDirectDrawSurfaceImpl *This, LPDDSCAPS lpDdsCaps
{
if ((This->caps & DDSCAPS_PRIMARYSURFACE) && (This->caps & DDSCAPS_FLIP) && (lpDdsCaps->dwCaps & DDSCAPS_BACKBUFFER))
{
IDirectDrawSurface_AddRef(This);
*surface = (LPDIRECTDRAWSURFACE)This;
if (This->backbuffer)
{
IDirectDrawSurface_AddRef(This->backbuffer);
*surface = (LPDIRECTDRAWSURFACE)This->backbuffer;
}
else
{
IDirectDrawSurface_AddRef(This);
*surface = (LPDIRECTDRAWSURFACE)This;
}
}
return DD_OK;
@ -696,9 +722,9 @@ HRESULT dds_GetDC(IDirectDrawSurfaceImpl *This, HDC FAR *a)
NULL;
if (data)
SetDIBColorTable(This->hdc, 0, 256, data);
SetDIBColorTable(dds_GetHDC(This), 0, 256, data);
*a = This->hdc;
*a = dds_GetHDC(This);
return DD_OK;
}
@ -752,7 +778,7 @@ HRESULT dds_Lock(IDirectDrawSurfaceImpl *This, LPRECT lpDestRect, LPDDSURFACEDES
if (lpDestRect && lpDDSurfaceDesc && lpDestRect->left >= 0 && lpDestRect->top >= 0)
{
lpDDSurfaceDesc->lpSurface =
(char*)This->surface + (lpDestRect->left * This->lx_pitch) + (lpDestRect->top * This->l_pitch);
(char*)dds_GetBuffer(This) + (lpDestRect->left * This->lx_pitch) + (lpDestRect->top * This->l_pitch);
}
return ret;
@ -810,12 +836,12 @@ HRESULT dds_Unlock(IDirectDrawSurfaceImpl *This, LPVOID lpRect)
if (hwnd && (This->caps & DDSCAPS_PRIMARYSURFACE))
{
if (g_ddraw->primary->palette && g_ddraw->primary->palette->data_rgb)
SetDIBColorTable(g_ddraw->primary->hdc, 0, 256, g_ddraw->primary->palette->data_rgb);
SetDIBColorTable(dds_GetHDC(g_ddraw->primary), 0, 256, g_ddraw->primary->palette->data_rgb);
//GdiTransparentBlt idea taken from Aqrit's war2 ddraw
RGBQUAD quad;
GetDIBColorTable(g_ddraw->primary->hdc, 0xFE, 1, &quad);
GetDIBColorTable(dds_GetHDC(g_ddraw->primary), 0xFE, 1, &quad);
COLORREF color = RGB(quad.rgbRed, quad.rgbGreen, quad.rgbBlue);
BOOL erase = FALSE;
@ -835,7 +861,7 @@ HRESULT dds_Unlock(IDirectDrawSurfaceImpl *This, LPVOID lpRect)
0,
rc.right - rc.left,
rc.bottom - rc.top,
g_ddraw->primary->hdc,
dds_GetHDC(g_ddraw->primary),
rc.left,
rc.top,
rc.right - rc.left,
@ -878,6 +904,28 @@ HRESULT dds_Unlock(IDirectDrawSurfaceImpl *This, LPVOID lpRect)
return DD_OK;
}
void* dds_GetBuffer(IDirectDrawSurfaceImpl* This)
{
if (!This)
return NULL;
if (This->backbuffer || (This->caps & DDSCAPS_BACKBUFFER))
return (void*)InterlockedExchangeAdd(&This->surface, 0);
return This->surface;
}
HDC dds_GetHDC(IDirectDrawSurfaceImpl* This)
{
if (!This)
return NULL;
if (This->backbuffer || (This->caps & DDSCAPS_BACKBUFFER))
return (HDC)InterlockedExchangeAdd(&This->hdc, 0);
return This->hdc;
}
HRESULT dd_CreateSurface(LPDDSURFACEDESC lpDDSurfaceDesc, LPDIRECTDRAWSURFACE FAR *lpDDSurface, IUnknown FAR * unkOuter)
{
dbg_dump_dds_flags(lpDDSurfaceDesc->dwFlags);
@ -980,6 +1028,19 @@ HRESULT dd_CreateSurface(LPDDSURFACEDESC lpDDSurfaceDesc, LPDIRECTDRAWSURFACE FA
if (lpDDSurfaceDesc->dwFlags & DDSD_BACKBUFFERCOUNT)
{
dprintf(" dwBackBufferCount=%d\n", lpDDSurfaceDesc->dwBackBufferCount);
if (g_ddraw->backbuffer)
{
DDSURFACEDESC desc;
memset(&desc, 0, sizeof(DDSURFACEDESC));
desc.ddsCaps.dwCaps |= DDSCAPS_BACKBUFFER;
desc.dwWidth = dst_surface->width;
desc.dwHeight = dst_surface->height;
dd_CreateSurface(&desc, &dst_surface->backbuffer, unkOuter);
}
}
dprintf(" surface = %p (%dx%d@%d)\n", dst_surface, (int)dst_surface->width, (int)dst_surface->height, (int)dst_surface->bpp);