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