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 #define CONST_VTABLE
  35
  36 #include "windef.h"
  37 #include "winbase.h"
  38 #include "wingdi.h"
  39 #include "ddraw.h"
  40 #include "d3d.h"
  41
  42 #include "wine/debug.h"
  43
  44 #include "ddcomimpl.h"
  45 #include "ddraw_private.h"
  46 #include "d3d_private.h"
  47
  48 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  49
  50 static const IDirectDrawSurface7Vtbl FakeZBuffer_IDirectDrawSurface7_VTable;
  51
  52 #ifdef HAVE_OPENGL
  53 static void zbuffer_lock_update(IDirectDrawSurfaceImpl* This, LPCRECT pRect, DWORD dwFlags)
  54 {
  55     /* Note that this does not do anything for now... At least it's not needed for Grim Fandango :-) */
  56 }
  57
  58 static void zbuffer_unlock_update(IDirectDrawSurfaceImpl* This, LPCRECT pRect)
  59 {
  60     ((FakeZBuffer_DirectDrawSurfaceImpl *) This->private)->in_memory = TRUE;
  61 }
  62
  63 static BOOLEAN zbuffer_get_dirty_status(IDirectDrawSurfaceImpl* This, LPCRECT pRect)
  64 {
  65     if (((FakeZBuffer_DirectDrawSurfaceImpl *) This->private)->in_memory) {
  66         ((FakeZBuffer_DirectDrawSurfaceImpl *) This->private)->in_memory = FALSE;
  67         return TRUE;
  68     }
  69     return FALSE;
  70 }
  71 #endif
  72
  73 HRESULT FakeZBuffer_DirectDrawSurface_Construct(IDirectDrawSurfaceImpl *This,
  74                                                 IDirectDrawImpl *pDD,
  75                                                 const DDSURFACEDESC2 *pDDSD)
  76 {
  77     HRESULT hr;
  78     BYTE zdepth = 16; /* Default value.. Should use the one from GL */
  79
  80     assert(pDDSD->ddsCaps.dwCaps & DDSCAPS_ZBUFFER);
  81
  82     hr = Main_DirectDrawSurface_Construct(This, pDD, pDDSD);
  83     if (FAILED(hr)) return hr;
  84
  85     ICOM_INIT_INTERFACE(This, IDirectDrawSurface7,
  86                         FakeZBuffer_IDirectDrawSurface7_VTable);
  87
  88     This->final_release = FakeZBuffer_DirectDrawSurface_final_release;
  89     This->duplicate_surface = FakeZBuffer_DirectDrawSurface_duplicate_surface;
  90
  91 #ifdef HAVE_OPENGL
  92     if (opengl_initialized) {
  93         This->lock_update = zbuffer_lock_update;
  94         This->unlock_update = zbuffer_unlock_update;
  95         This->get_dirty_status = zbuffer_get_dirty_status;
  96     }
  97 #endif
  98
  99
 100     /* Beginning of some D3D hacks :-) */
 101     if (This->surface_desc.dwFlags & DDSD_ZBUFFERBITDEPTH) {
 102         zdepth = This->surface_desc.u2.dwMipMapCount; /* This is where the Z buffer depth is stored in 'old' versions */
 103     }
 104
 105     if ((This->surface_desc.dwFlags & DDSD_PIXELFORMAT) == 0) {
 106         This->surface_desc.dwFlags |= DDSD_PIXELFORMAT;
 107         This->surface_desc.u4.ddpfPixelFormat.dwSize = sizeof(This->surface_desc.u4.ddpfPixelFormat);
 108         This->surface_desc.u4.ddpfPixelFormat.dwFlags = DDPF_ZBUFFER;
 109         This->surface_desc.u4.ddpfPixelFormat.u1.dwZBufferBitDepth = zdepth;
 110     }
 111     if ((This->surface_desc.dwFlags & DDSD_PITCH) == 0) {
 112         This->surface_desc.dwFlags |= DDSD_PITCH;
 113         This->surface_desc.u1.lPitch = ((zdepth + 7) / 8) * This->surface_desc.dwWidth;
 114     }
 115     This->surface_desc.lpSurface = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 116                                              This->surface_desc.u1.lPitch * This->surface_desc.dwHeight);
 117
 118     return DD_OK;
 119 }
 120
 121 /* Not an API */
 122 HRESULT FakeZBuffer_DirectDrawSurface_Create(IDirectDrawImpl* pDD,
 123                                              const DDSURFACEDESC2* pDDSD,
 124                                              LPDIRECTDRAWSURFACE7* ppSurf,
 125                                              IUnknown* pUnkOuter)
 126 {
 127     IDirectDrawSurfaceImpl* This;
 128     HRESULT hr;
 129     assert(pUnkOuter == NULL);
 130
 131     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 132                      sizeof(*This)
 133                      + sizeof(FakeZBuffer_DirectDrawSurfaceImpl));
 134     if (This == NULL) return E_OUTOFMEMORY;
 135
 136     This->private = (FakeZBuffer_DirectDrawSurfaceImpl*)(This+1);
 137
 138     hr = FakeZBuffer_DirectDrawSurface_Construct(This, pDD, pDDSD);
 139     if (FAILED(hr))
 140         HeapFree(GetProcessHeap(), 0, This);
 141     else
 142         *ppSurf = ICOM_INTERFACE(This, IDirectDrawSurface7);
 143
 144     return hr;
 145 }
 146
 147 void
 148 FakeZBuffer_DirectDrawSurface_final_release(IDirectDrawSurfaceImpl* This)
 149 {
 150     Main_DirectDrawSurface_final_release(This);
 151 }
 152
 153 HRESULT
 154 FakeZBuffer_DirectDrawSurface_duplicate_surface(IDirectDrawSurfaceImpl* This,
 155                                                 LPDIRECTDRAWSURFACE7* ppDup)
 156 {
 157     return FakeZBuffer_DirectDrawSurface_Create(This->ddraw_owner,
 158                                                 &This->surface_desc, ppDup,
 159                                                 NULL);
 160 }
 161
 162 /* put your breakpoint/abort call here */
 163 static HRESULT cant_do_that(const char *s)
 164 {
 165     FIXME("attempt to %s fake z-buffer\n", s);
 166     return DDERR_UNSUPPORTED;
 167 }
 168
 169 HRESULT WINAPI
 170 FakeZBuffer_DirectDrawSurface_Blt(LPDIRECTDRAWSURFACE7 iface, LPRECT rdst,
 171                                   LPDIRECTDRAWSURFACE7 src, LPRECT rsrc,
 172                                   DWORD dwFlags, LPDDBLTFX lpbltfx)
 173 {
 174     IDirectDrawSurfaceImpl *This = (IDirectDrawSurfaceImpl *)iface;
 175
 176     if (TRACE_ON(ddraw)) {
 177         TRACE("(%p)->(%p,%p,%p,%08lx,%p)\n", This,rdst,src,rsrc,dwFlags,lpbltfx);
 178         if (rdst) TRACE("\tdestrect :%ldx%ld-%ldx%ld\n",rdst->left,rdst->top,rdst->right,rdst->bottom);
 179         if (rsrc) TRACE("\tsrcrect  :%ldx%ld-%ldx%ld\n",rsrc->left,rsrc->top,rsrc->right,rsrc->bottom);
 180         TRACE("\tflags: ");
 181         DDRAW_dump_DDBLT(dwFlags);
 182         if (dwFlags & DDBLT_DDFX) {
 183             TRACE("\tblitfx: ");
 184             DDRAW_dump_DDBLTFX(lpbltfx->dwDDFX);
 185         }
 186     }
 187
 188     /* We only support the BLT with DEPTH_FILL for now */
 189     if ((dwFlags & DDBLT_DEPTHFILL) && (This->ddraw_owner->d3d_private != NULL)) {
 190         if (This->ddraw_owner->current_device != NULL) {
 191             D3DRECT rect;
 192             if (rdst) {
 193                 rect.u1.x1 = rdst->left;
 194                 rect.u2.y1 = rdst->top;
 195                 rect.u3.x2 = rdst->right;
 196                 rect.u4.y2 = rdst->bottom;
 197             }
 198             This->ddraw_owner->current_device->clear(This->ddraw_owner->current_device,
 199                                                      (rdst == NULL ? 0 : 1), &rect,
 200                                                      D3DCLEAR_ZBUFFER,
 201                                                      0x00000000,
 202                                                      ((double) lpbltfx->u5.dwFillDepth) / 4294967295.0,
 203                                                      0x00000000);
 204             return DD_OK;
 205         }
 206     }
 207
 208     return cant_do_that("blt to a");
 209 }
 210
 211 HRESULT WINAPI
 212 FakeZBuffer_DirectDrawSurface_BltFast(LPDIRECTDRAWSURFACE7 iface, DWORD dstx,
 213                                       DWORD dsty, LPDIRECTDRAWSURFACE7 src,
 214                                       LPRECT rsrc, DWORD trans)
 215 {
 216     IDirectDrawSurfaceImpl *This = (IDirectDrawSurfaceImpl *)iface;
 217
 218     if (TRACE_ON(ddraw)) {
 219         FIXME("(%p)->(%ld,%ld,%p,%p,%08lx)\n",
 220                 This,dstx,dsty,src,rsrc,trans
 221         );
 222         FIXME("\ttrans:");
 223         if (FIXME_ON(ddraw))
 224           DDRAW_dump_DDBLTFAST(trans);
 225         if (rsrc)
 226           FIXME("\tsrcrect: %ldx%ld-%ldx%ld\n",rsrc->left,rsrc->top,rsrc->right,rsrc->bottom);
 227         else
 228           FIXME(" srcrect: NULL\n");
 229     }
 230
 231     return cant_do_that("bltfast to a");
 232 }
 233
 234 HRESULT WINAPI
 235 FakeZBuffer_DirectDrawSurface_GetDC(LPDIRECTDRAWSURFACE7 iface, HDC *phDC)
 236 {
 237     return cant_do_that("get a DC for a");
 238 }
 239
 240 HRESULT WINAPI
 241 FakeZBuffer_DirectDrawSurface_ReleaseDC(LPDIRECTDRAWSURFACE7 iface, HDC hDC)
 242 {
 243     return cant_do_that("release a DC for a");
 244 }
 245
 246 HRESULT WINAPI
 247 FakeZBuffer_DirectDrawSurface_Restore(LPDIRECTDRAWSURFACE7 iface)
 248 {
 249     return DD_OK;
 250 }
 251
 252 HRESULT WINAPI
 253 FakeZBuffer_DirectDrawSurface_SetSurfaceDesc(LPDIRECTDRAWSURFACE7 iface,
 254                                              LPDDSURFACEDESC2 pDDSD,
 255                                              DWORD dwFlags)
 256 {
 257     /* XXX */
 258     abort();
 259     return E_FAIL;
 260 }
 261
 262
 263 static const IDirectDrawSurface7Vtbl FakeZBuffer_IDirectDrawSurface7_VTable=
 264 {
 265     Main_DirectDrawSurface_QueryInterface,
 266     Main_DirectDrawSurface_AddRef,
 267     Main_DirectDrawSurface_Release,
 268     Main_DirectDrawSurface_AddAttachedSurface,
 269     Main_DirectDrawSurface_AddOverlayDirtyRect,
 270     FakeZBuffer_DirectDrawSurface_Blt,
 271     Main_DirectDrawSurface_BltBatch,
 272     FakeZBuffer_DirectDrawSurface_BltFast,
 273     Main_DirectDrawSurface_DeleteAttachedSurface,
 274     Main_DirectDrawSurface_EnumAttachedSurfaces,
 275     Main_DirectDrawSurface_EnumOverlayZOrders,
 276     Main_DirectDrawSurface_Flip,
 277     Main_DirectDrawSurface_GetAttachedSurface,
 278     Main_DirectDrawSurface_GetBltStatus,
 279     Main_DirectDrawSurface_GetCaps,
 280     Main_DirectDrawSurface_GetClipper,
 281     Main_DirectDrawSurface_GetColorKey,
 282     FakeZBuffer_DirectDrawSurface_GetDC,
 283     Main_DirectDrawSurface_GetFlipStatus,
 284     Main_DirectDrawSurface_GetOverlayPosition,
 285     Main_DirectDrawSurface_GetPalette,
 286     Main_DirectDrawSurface_GetPixelFormat,
 287     Main_DirectDrawSurface_GetSurfaceDesc,
 288     Main_DirectDrawSurface_Initialize,
 289     Main_DirectDrawSurface_IsLost,
 290     Main_DirectDrawSurface_Lock,
 291     FakeZBuffer_DirectDrawSurface_ReleaseDC,
 292     FakeZBuffer_DirectDrawSurface_Restore,
 293     Main_DirectDrawSurface_SetClipper,
 294     Main_DirectDrawSurface_SetColorKey,
 295     Main_DirectDrawSurface_SetOverlayPosition,
 296     Main_DirectDrawSurface_SetPalette,
 297     Main_DirectDrawSurface_Unlock,
 298     Main_DirectDrawSurface_UpdateOverlay,
 299     Main_DirectDrawSurface_UpdateOverlayDisplay,
 300     Main_DirectDrawSurface_UpdateOverlayZOrder,
 301     Main_DirectDrawSurface_GetDDInterface,
 302     Main_DirectDrawSurface_PageLock,
 303     Main_DirectDrawSurface_PageUnlock,
 304     FakeZBuffer_DirectDrawSurface_SetSurfaceDesc,
 305     Main_DirectDrawSurface_SetPrivateData,
 306     Main_DirectDrawSurface_GetPrivateData,
 307     Main_DirectDrawSurface_FreePrivateData,
 308     Main_DirectDrawSurface_GetUniquenessValue,
 309     Main_DirectDrawSurface_ChangeUniquenessValue,
 310     Main_DirectDrawSurface_SetPriority,
 311     Main_DirectDrawSurface_GetPriority,
 312     Main_DirectDrawSurface_SetLOD,
 313     Main_DirectDrawSurface_GetLOD
 314 };