dlls/ddraw/dsurface/fakezbuffer.c

   1 /*              DirectDraw/Direct3D Z-Buffer stand in
   2  *
   3  * Copyright 2000 TransGaming Technologies Inc.
   4  *
   5  * This class provides a DirectDrawSurface implementation that represents
   6  * a Z-Buffer surface. However it does not store an image and does not
   7  * support Lock/Unlock or GetDC. It is merely a placeholder required by the
   8  * Direct3D architecture.
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23  */
  24
  25 #include "config.h"
  26
  27 #include <stdarg.h>
  28 #include <stdlib.h>
  29 #include <assert.h>
  30
  31 #define NONAMELESSUNION
  32 #define NONAMELESSSTRUCT
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "wingdi.h"
  36 #include "ddraw.h"
  37 #include "d3d.h"
  38
  39 #include "wine/debug.h"
  40
  41 #include "ddcomimpl.h"
  42 #include "ddraw_private.h"
  43 #include "d3d_private.h"
  44 #include "dsurface/main.h"
  45 #include "dsurface/fakezbuffer.h"
  46
  47 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  48
  49 static IDirectDrawSurface7Vtbl FakeZBuffer_IDirectDrawSurface7_VTable;
  50
  51 #ifdef HAVE_OPENGL
  52 static void zbuffer_lock_update(IDirectDrawSurfaceImpl* This, LPCRECT pRect, DWORD dwFlags)
  53 {
  54     /* Note that this does not do anything for now... At least it's not needed for Grim Fandango :-) */
  55 }
  56
  57 static void zbuffer_unlock_update(IDirectDrawSurfaceImpl* This, LPCRECT pRect)
  58 {
  59     ((FakeZBuffer_DirectDrawSurfaceImpl *) This->private)->in_memory = TRUE;
  60 }
  61
  62 static BOOLEAN zbuffer_get_dirty_status(IDirectDrawSurfaceImpl* This, LPCRECT pRect)
  63 {
  64     if (((FakeZBuffer_DirectDrawSurfaceImpl *) This->private)->in_memory) {
  65         ((FakeZBuffer_DirectDrawSurfaceImpl *) This->private)->in_memory = FALSE;
  66         return TRUE;
  67     }
  68     return FALSE;
  69 }
  70 #endif
  71
  72 HRESULT FakeZBuffer_DirectDrawSurface_Construct(IDirectDrawSurfaceImpl *This,
  73                                                 IDirectDrawImpl *pDD,
  74                                                 const DDSURFACEDESC2 *pDDSD)
  75 {
  76     HRESULT hr;
  77     BYTE zdepth = 16; /* Default value.. Should use the one from GL */
  78
  79     assert(pDDSD->ddsCaps.dwCaps & DDSCAPS_ZBUFFER);
  80
  81     hr = Main_DirectDrawSurface_Construct(This, pDD, pDDSD);
  82     if (FAILED(hr)) return hr;
  83
  84     ICOM_INIT_INTERFACE(This, IDirectDrawSurface7,
  85                         FakeZBuffer_IDirectDrawSurface7_VTable);
  86
  87     This->final_release = FakeZBuffer_DirectDrawSurface_final_release;
  88     This->duplicate_surface = FakeZBuffer_DirectDrawSurface_duplicate_surface;
  89
  90 #ifdef HAVE_OPENGL
  91     if (opengl_initialized) {
  92         This->lock_update = zbuffer_lock_update;
  93         This->unlock_update = zbuffer_unlock_update;
  94         This->get_dirty_status = zbuffer_get_dirty_status;
  95     }
  96 #endif
  97
  98
  99     /* Beginning of some D3D hacks :-) */
 100     if (This->surface_desc.dwFlags & DDSD_ZBUFFERBITDEPTH) {
 101         zdepth = This->surface_desc.u2.dwMipMapCount; /* This is where the Z buffer depth is stored in 'old' versions */
 102     }
 103
 104     if ((This->surface_desc.dwFlags & DDSD_PIXELFORMAT) == 0) {
 105         This->surface_desc.dwFlags |= DDSD_PIXELFORMAT;
 106         This->surface_desc.u4.ddpfPixelFormat.dwSize = sizeof(This->surface_desc.u4.ddpfPixelFormat);
 107         This->surface_desc.u4.ddpfPixelFormat.dwFlags = DDPF_ZBUFFER;
 108         This->surface_desc.u4.ddpfPixelFormat.u1.dwZBufferBitDepth = zdepth;
 109     }
 110     if ((This->surface_desc.dwFlags & DDSD_PITCH) == 0) {
 111         This->surface_desc.dwFlags |= DDSD_PITCH;
 112         This->surface_desc.u1.lPitch = ((zdepth + 7) / 8) * This->surface_desc.dwWidth;
 113     }
 114     This->surface_desc.lpSurface = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 115                                              This->surface_desc.u1.lPitch * This->surface_desc.dwHeight);
 116
 117     return DD_OK;
 118 }
 119
 120 /* Not an API */
 121 HRESULT FakeZBuffer_DirectDrawSurface_Create(IDirectDrawImpl* pDD,
 122                                              const DDSURFACEDESC2* pDDSD,
 123                                              LPDIRECTDRAWSURFACE7* ppSurf,
 124                                              IUnknown* pUnkOuter)
 125 {
 126     IDirectDrawSurfaceImpl* This;
 127     HRESULT hr;
 128     assert(pUnkOuter == NULL);
 129
 130     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 131                      sizeof(*This)
 132                      + sizeof(FakeZBuffer_DirectDrawSurfaceImpl));
 133     if (This == NULL) return E_OUTOFMEMORY;
 134
 135     This->private = (FakeZBuffer_DirectDrawSurfaceImpl*)(This+1);
 136
 137     hr = FakeZBuffer_DirectDrawSurface_Construct(This, pDD, pDDSD);
 138     if (FAILED(hr))
 139         HeapFree(GetProcessHeap(), 0, This);
 140     else
 141         *ppSurf = ICOM_INTERFACE(This, IDirectDrawSurface7);
 142
 143     return hr;
 144 }
 145
 146 void
 147 FakeZBuffer_DirectDrawSurface_final_release(IDirectDrawSurfaceImpl* This)
 148 {
 149     Main_DirectDrawSurface_final_release(This);
 150 }
 151
 152 HRESULT
 153 FakeZBuffer_DirectDrawSurface_duplicate_surface(IDirectDrawSurfaceImpl* This,
 154                                                 LPDIRECTDRAWSURFACE7* ppDup)
 155 {
 156     return FakeZBuffer_DirectDrawSurface_Create(This->ddraw_owner,
 157                                                 &This->surface_desc, ppDup,
 158                                                 NULL);
 159 }
 160
 161 /* put your breakpoint/abort call here */
 162 static HRESULT cant_do_that(const char *s)
 163 {
 164     FIXME("attempt to %s fake z-buffer\n", s);
 165     return DDERR_UNSUPPORTED;
 166 }
 167
 168 HRESULT WINAPI
 169 FakeZBuffer_DirectDrawSurface_Blt(LPDIRECTDRAWSURFACE7 iface, LPRECT rdst,
 170                                   LPDIRECTDRAWSURFACE7 src, LPRECT rsrc,
 171                                   DWORD dwFlags, LPDDBLTFX lpbltfx)
 172 {
 173     IDirectDrawSurfaceImpl *This = (IDirectDrawSurfaceImpl *)iface;
 174
 175     if (TRACE_ON(ddraw)) {
 176         TRACE("(%p)->(%p,%p,%p,%08lx,%p)\n", This,rdst,src,rsrc,dwFlags,lpbltfx);
 177         if (rdst) TRACE("\tdestrect :%ldx%ld-%ldx%ld\n",rdst->left,rdst->top,rdst->right,rdst->bottom);
 178         if (rsrc) TRACE("\tsrcrect  :%ldx%ld-%ldx%ld\n",rsrc->left,rsrc->top,rsrc->right,rsrc->bottom);
 179         TRACE("\tflags: ");
 180         DDRAW_dump_DDBLT(dwFlags);
 181         if (dwFlags & DDBLT_DDFX) {
 182             TRACE("\tblitfx: ");
 183             DDRAW_dump_DDBLTFX(lpbltfx->dwDDFX);
 184         }
 185     }
 186
 187     /* We only support the BLT with DEPTH_FILL for now */
 188     if ((dwFlags & DDBLT_DEPTHFILL) && (This->ddraw_owner->d3d_private != NULL)) {
 189         if (This->ddraw_owner->current_device != NULL) {
 190             D3DRECT rect;
 191             if (rdst) {
 192                 rect.u1.x1 = rdst->left;
 193                 rect.u2.y1 = rdst->top;
 194                 rect.u3.x2 = rdst->right;
 195                 rect.u4.y2 = rdst->bottom;
 196             }
 197             This->ddraw_owner->current_device->clear(This->ddraw_owner->current_device,
 198                                                      (rdst == NULL ? 0 : 1), &rect,
 199                                                      D3DCLEAR_ZBUFFER,
 200                                                      0x00000000,
 201                                                      ((double) lpbltfx->u5.dwFillDepth) / 4294967295.0,
 202                                                      0x00000000);
 203             return DD_OK;
 204         }
 205     }
 206
 207     return cant_do_that("blt to a");
 208 }
 209
 210 HRESULT WINAPI
 211 FakeZBuffer_DirectDrawSurface_BltFast(LPDIRECTDRAWSURFACE7 iface, DWORD dstx,
 212                                       DWORD dsty, LPDIRECTDRAWSURFACE7 src,
 213                                       LPRECT rsrc, DWORD trans)
 214 {
 215     IDirectDrawSurfaceImpl *This = (IDirectDrawSurfaceImpl *)iface;
 216
 217     if (TRACE_ON(ddraw)) {
 218         FIXME("(%p)->(%ld,%ld,%p,%p,%08lx)\n",
 219                 This,dstx,dsty,src,rsrc,trans
 220         );
 221         FIXME("\ttrans:");
 222         if (FIXME_ON(ddraw))
 223           DDRAW_dump_DDBLTFAST(trans);
 224         if (rsrc)
 225           FIXME("\tsrcrect: %ldx%ld-%ldx%ld\n",rsrc->left,rsrc->top,rsrc->right,rsrc->bottom);
 226         else
 227           FIXME(" srcrect: NULL\n");
 228     }
 229
 230     return cant_do_that("bltfast to a");
 231 }
 232
 233 HRESULT WINAPI
 234 FakeZBuffer_DirectDrawSurface_GetDC(LPDIRECTDRAWSURFACE7 iface, HDC *phDC)
 235 {
 236     return cant_do_that("get a DC for a");
 237 }
 238
 239 HRESULT WINAPI
 240 FakeZBuffer_DirectDrawSurface_ReleaseDC(LPDIRECTDRAWSURFACE7 iface, HDC hDC)
 241 {
 242     return cant_do_that("release a DC for a");
 243 }
 244
 245 HRESULT WINAPI
 246 FakeZBuffer_DirectDrawSurface_Restore(LPDIRECTDRAWSURFACE7 iface)
 247 {
 248     return DD_OK;
 249 }
 250
 251 HRESULT WINAPI
 252 FakeZBuffer_DirectDrawSurface_SetSurfaceDesc(LPDIRECTDRAWSURFACE7 iface,
 253                                              LPDDSURFACEDESC2 pDDSD,
 254                                              DWORD dwFlags)
 255 {
 256     /* XXX */
 257     abort();
 258     return E_FAIL;
 259 }
 260
 261
 262 static IDirectDrawSurface7Vtbl FakeZBuffer_IDirectDrawSurface7_VTable=
 263 {
 264     Main_DirectDrawSurface_QueryInterface,
 265     Main_DirectDrawSurface_AddRef,
 266     Main_DirectDrawSurface_Release,
 267     Main_DirectDrawSurface_AddAttachedSurface,
 268     Main_DirectDrawSurface_AddOverlayDirtyRect,
 269     FakeZBuffer_DirectDrawSurface_Blt,
 270     Main_DirectDrawSurface_BltBatch,
 271     FakeZBuffer_DirectDrawSurface_BltFast,
 272     Main_DirectDrawSurface_DeleteAttachedSurface,
 273     Main_DirectDrawSurface_EnumAttachedSurfaces,
 274     Main_DirectDrawSurface_EnumOverlayZOrders,
 275     Main_DirectDrawSurface_Flip,
 276     Main_DirectDrawSurface_GetAttachedSurface,
 277     Main_DirectDrawSurface_GetBltStatus,
 278     Main_DirectDrawSurface_GetCaps,
 279     Main_DirectDrawSurface_GetClipper,
 280     Main_DirectDrawSurface_GetColorKey,
 281     FakeZBuffer_DirectDrawSurface_GetDC,
 282     Main_DirectDrawSurface_GetFlipStatus,
 283     Main_DirectDrawSurface_GetOverlayPosition,
 284     Main_DirectDrawSurface_GetPalette,
 285     Main_DirectDrawSurface_GetPixelFormat,
 286     Main_DirectDrawSurface_GetSurfaceDesc,
 287     Main_DirectDrawSurface_Initialize,
 288     Main_DirectDrawSurface_IsLost,
 289     Main_DirectDrawSurface_Lock,
 290     FakeZBuffer_DirectDrawSurface_ReleaseDC,
 291     FakeZBuffer_DirectDrawSurface_Restore,
 292     Main_DirectDrawSurface_SetClipper,
 293     Main_DirectDrawSurface_SetColorKey,
 294     Main_DirectDrawSurface_SetOverlayPosition,
 295     Main_DirectDrawSurface_SetPalette,
 296     Main_DirectDrawSurface_Unlock,
 297     Main_DirectDrawSurface_UpdateOverlay,
 298     Main_DirectDrawSurface_UpdateOverlayDisplay,
 299     Main_DirectDrawSurface_UpdateOverlayZOrder,
 300     Main_DirectDrawSurface_GetDDInterface,
 301     Main_DirectDrawSurface_PageLock,
 302     Main_DirectDrawSurface_PageUnlock,
 303     FakeZBuffer_DirectDrawSurface_SetSurfaceDesc,
 304     Main_DirectDrawSurface_SetPrivateData,
 305     Main_DirectDrawSurface_GetPrivateData,
 306     Main_DirectDrawSurface_FreePrivateData,
 307     Main_DirectDrawSurface_GetUniquenessValue,
 308     Main_DirectDrawSurface_ChangeUniquenessValue,
 309     Main_DirectDrawSurface_SetPriority,
 310     Main_DirectDrawSurface_GetPriority,
 311     Main_DirectDrawSurface_SetLOD,
 312     Main_DirectDrawSurface_GetLOD
 313 };