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3373 lines
87 KiB
3373 lines
87 KiB
/*========================================================================== *
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*
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* Copyright (C) 1994-1995 Microsoft Corporation. All Rights Reserved.
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*
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* File: ddcsurf.c
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* Content: DirectDraw support for for create surface
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* History:
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* Date By Reason
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* ==== == ======
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* 08-jan-95 craige initial implementation
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* 13-jan-95 craige re-worked to updated spec + ongoing work
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* 21-jan-95 craige made 32-bit + ongoing work
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* 31-jan-95 craige and even more ongoing work...
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* 21-feb-95 craige work work work
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* 27-feb-95 craige new sync. macros
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* 02-mar-95 craige use pitch (not stride)
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* 07-mar-95 craige keep track of flippable surfaces
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* 08-mar-95 craige new APIs
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* 12-mar-95 craige clean up surfaces after process dies...
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* 15-mar-95 craige more HEL work
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* 19-mar-95 craige use HRESULTs
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* 20-mar-95 craige new CSECT work
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* 23-mar-95 craige attachment work
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* 29-mar-95 craige use GETCURRPID; only call emulation if
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* DDRAWI_EMULATIONINITIALIZED is set
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* 31-mar-95 craige allow setting of hwnd & ckey
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* 01-apr-95 craige happy fun joy updated header file
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* 12-apr-95 craige don't use GETCURRPID
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* 13-apr-95 craige EricEng's little contribution to our being late
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* 15-apr-95 craige added GetBltStatus
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* 06-may-95 craige use driver-level csects only
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* 15-may-95 kylej changed overlay functions in ddSurfaceCallbacks
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* 22-may-95 craige use MemAlloc16 to get selectors & ptrs
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* 24-may-95 kylej Added AddOverlayDirtyRect and UpdateOverlayDisplay
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* 24-may-95 craige added Restore
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* 04-jun-95 craige added IsLost
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* 11-jun-95 craige check for some
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* 16-jun-95 craige removed fpVidMemOrig
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* 17-jun-95 craige new surface structure
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* 18-jun-95 craige allow duplicate surfaces
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* 19-jun-95 craige automatically assign pitch for rectangular surfaces
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* 20-jun-95 craige use fpPrimaryOrig when allocating primary
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* 21-jun-95 craige use OBJECT_ISROOT
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* 25-jun-95 craige one ddraw mutex
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* 26-jun-95 craige reorganized surface structure
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* 27-jun-95 craige added BltBatch; save display mode object was created in
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* 28-jun-95 craige ENTER_DDRAW at very start of fns; always assign
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* back buffer count to first surface in flipping chain
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* 30-jun-95 kylej extensive changes to support multiple primary
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* surfaces.
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* 30-jun-95 craige clean pixel formats; use DDRAWI_HASPIXELFORMAT/HASOVERLAYDATA
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* 01-jul-95 craige fail creation of primary/flipping if not in excl. mode
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* alloc overlay space on primary; cmt out streaming;
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* bug 99
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* 04-jul-95 craige YEEHAW: new driver struct; SEH
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* 05-jul-95 craige added Initialize
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* 08-jul-95 craige restrict surface width to pitch
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* 09-jul-95 craige export ComputePitch
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* 11-jul-95 craige fail aggregation calls
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* 13-jul-95 craige allow flippable offscreen & textures
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* 18-jul-95 craige removed Flush
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* 22-jul-95 craige bug 230 - unsupported starting modes
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* 10-aug-95 craige misc caps combo bugs
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* 21-aug-95 craige mode x support
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* 22-aug-95 craige bug 641
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* 02-sep-95 craige bug 854: disable > 640x480 flippable primary for rel1
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* 16-sep-95 craige bug 1117: all primary surfaces were marked as root,
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* instead of just first one
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* 19-sep-95 craige bug 1185: allow any width for explicit sysmem
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* 09-nov-95 colinmc slightly more validation of palettized surfaces
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* 05-dec-95 colinmc changed DDSCAPS_TEXTUREMAP => DDSCAPS_TEXTURE for
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* consistency with Direct3D
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* 06-dec-95 colinmc added mip-map support
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* 09-dec-95 colinmc added execute buffer support
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* 14-dec-95 colinmc added shared back and z-buffer support
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* 18-dec-95 colinmc additional caps. bit validity checking
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* 22-dec-95 colinmc Direct3D support no longer conditional
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* 02-jan-96 kylej handle new interface structures
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* 10-jan-96 colinmc IUnknowns aggregated by a surface is now a list
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* 18-jan-96 jeffno NT hardware support in CreateSurface.
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* 29-jan-96 colinmc Aggregated IUnknowns now stored in additional local
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* surface data structure
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* 09-feb-96 colinmc Surface lost flag moved from global to local object
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* 15-feb-96 colinmc Changed message output on surface creation to make
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* creation of surfaces with unspecified memory caps
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* less frightening
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* 17-feb-96 colinmc Fixed execute buffer size limitation problem
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* 13-mar-96 jeffno Correctly examine flags when allocating NT kernel
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* -mode structures
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* 24-mar-96 colinmc Bug 14321: not possible to specify back buffer and
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* mip-map count in a single call
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* 26-mar-96 colinmc Bug 14470: Compressed surface support
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* 14-apr-96 colinmc Bug 17736: No driver notification of flip to GDI
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* 17-may-96 craige Bug 23299: non-power of 2 alignments
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* 23-may-96 colinmc Bug 24190: Explicit system memory surface with
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* no pixel format can cause heap corruption if
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* another app. changes display depth
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* 26-may-96 colinmc Bug 24552: Heap trash on emulated cards
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* 30-may-96 colinmc Bug 24858: Creating explicit flipping surfaces with
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* pixel format fails.
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*
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***************************************************************************/
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#include "ddrawpr.h"
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#ifdef WINNT
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#include "ddrawgdi.h"
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#endif
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/*
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* alignPitch - compute a new pitch that works with the requested alignment
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*/
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__inline DWORD alignPitch( DWORD pitch, DWORD align )
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{
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DWORD remain;
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/*
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* is it crap we're getting?
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*/
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if( align == 0 )
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{
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return pitch;
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}
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/*
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* is pitch already aligned properly?
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*/
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remain = pitch % align;
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if( remain == 0 )
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{
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return pitch;
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}
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/*
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* align pitch to next boundary
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*/
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return (pitch + (align - remain));
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} /* alignPitch */
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#define DPF_MODNAME "CreateSurface"
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/*
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* pixel formats we know we can work with...
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*
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* currently we don't included DDPF_PALETTEINDEXED1, DDPF_PALETTEINDEXED2 and
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* DDPF_PALETTEINDEXED4 in this list so if you want to use one of these you
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* must specify a valid pixel format and have a HEL/HAL that will accept such
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* surfaces.
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*/
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#define UNDERSTOOD_PF (DDPF_RGB|DDPF_PALETTEINDEXED8|DDPF_ALPHAPIXELS|DDPF_ZBUFFER)
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typedef struct
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{
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LPDDRAWI_DDRAWSURFACE_INT *slist_int;
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LPDDRAWI_DDRAWSURFACE_LCL *slist_lcl;
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LPDDRAWI_DDRAWSURFACE_GBL *slist;
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BOOL listsize;
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BOOL listcnt;
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BOOL freelist;
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BOOL needlink;
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} CSINFO;
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/*
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* isPowerOf2
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*
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* if the input (dw) is a whole power of 2 returns TRUE and
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* *pPower is set to the exponent.
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* if the input (dw) is not a whole power of 2 returns FALSE and
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* *pPower is undefined.
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* NOTE: the caller can pass NULL for pPower.
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*/
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static BOOL isPowerOf2(DWORD dw, int* pPower)
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{
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int n;
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int nBits;
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DWORD dwMask;
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nBits = 0;
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dwMask = 0x00000001UL;
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for (n = 0; n < 32; n++)
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{
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if (dw & dwMask)
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{
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if (pPower != NULL)
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*pPower = n;
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nBits++;
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if (nBits > 1)
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break;
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}
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dwMask <<= 1;
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}
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return (nBits == 1);
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}
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/*
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* freeSurfaceList
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*
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* free all surfaces in an associated surface list, and destroys any
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* resources associated with the surface struct. This function is only called
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* before the surfaces have been linked into the global surface list and
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* before they have been AddRefed.
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*/
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static void freeSurfaceList( LPDDRAWI_DDRAWSURFACE_INT *slist_int,
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int cnt )
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{
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LPDDRAWI_DDRAWSURFACE_INT psurf_int;
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LPDDRAWI_DDRAWSURFACE_LCL psurf_lcl;
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int i;
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if( slist_int == NULL )
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{
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return;
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}
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for( i=0;i<cnt;i++ )
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{
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psurf_int = slist_int[i];
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psurf_lcl = psurf_int->lpLcl;
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/*
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* if fpVidMem = DDHAL_PLEASEALLOC_BLOCKSIZE then we didn't actually allocate any
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* video memory. We still need to call the driver's DestroySurface but we don't want
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* it to free any video memory because we haven't allocated any. So we set the
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* video memory pointer and the heap to NULL.
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*/
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if( psurf_lcl->lpGbl->fpVidMem == DDHAL_PLEASEALLOC_BLOCKSIZE )
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{
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psurf_lcl->lpGbl->lpVidMemHeap = NULL;
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psurf_lcl->lpGbl->fpVidMem = 0;
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}
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DestroySurface( psurf_lcl );
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DeleteAttachedSurfaceLists( psurf_lcl );
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/*
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* NOTE: We DO NOT explicitly free the DDRAWI_DDRAWSURFACE_MORE
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* structure pointed to by lpSurfMore as this is allocated in
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* a single MemAlloc with the local surface structure.
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*/
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MemFree( psurf_lcl );
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MemFree( psurf_int );
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}
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} /* freeSurfaceList */
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/*
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* GetBytesFromPixels
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*/
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DWORD GetBytesFromPixels( DWORD pixels, UINT bpp )
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{
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DWORD bytes;
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bytes = pixels;
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switch( bpp ) {
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case 1:
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bytes = (bytes+7)/8;
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break;
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case 2:
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bytes = (bytes+3)/4;
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break;
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case 4:
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bytes = (bytes+1)/2;
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break;
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case 8:
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break;
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case 16:
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bytes *= 2;
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break;
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case 24:
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bytes *= 3;
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break;
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case 32:
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bytes *= 4;
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break;
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default:
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bytes = 0;
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}
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DPF( 8, "GetBytesFromPixels( %ld, %d ) = %d", pixels, bpp, bytes );
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return bytes;
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} /* GetBytesFromPixels */
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/*
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* getPixelsFromBytes
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*/
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static DWORD getPixelsFromBytes( DWORD bytes, UINT bpp )
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{
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DWORD pixels;
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pixels = bytes;
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switch( bpp ) {
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case 1:
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pixels *= 8L;
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break;
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case 2:
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pixels *= 4L;
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break;
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case 4:
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pixels *= 2L;
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break;
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case 8:
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break;
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case 16:
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pixels /= 2L;
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break;
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case 24:
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pixels /= 3L;
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break;
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case 32:
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pixels /= 4L;
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break;
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default:
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pixels = 0;
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}
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DPF( 8, "getPixelsFromBytes( %ld, %d ) = %d", bytes, bpp, pixels );
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return pixels;
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} /* getBytesFromPixels */
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/*
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* vmAlloc
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*
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* Try to allocate video memory.
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*
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* We and the caps bits required and the caps bits not allowed
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* by the video memory. If the result is zero, it is OK.
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*
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* This is called in 2 passes. Pass1 is the preferred memory state,
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* pass2 is the "oh no no memory" state.
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*
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* On pass1, we use ddsCaps in the VIDMEM struct.
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* On pass2, we use ddsCapsAlt in the VIDMEM struct.
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*/
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static FLATPTR vmAlloc( LPDDRAWI_DIRECTDRAW_GBL this,
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DWORD vm_width,
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DWORD vm_height,
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LPVMEMHEAP FAR *ppheap,
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DWORD caps,
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BOOL pass1,
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LPLONG pnewpitch )
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{
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LPVIDMEM pvm;
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DWORD vm_caps;
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int i;
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FLATPTR pvidmem;
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for( i=0;i<(int)this->vmiData.dwNumHeaps;i++ )
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{
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pvm = &this->vmiData.pvmList[i];
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if( pass1 )
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{
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vm_caps = pvm->ddsCaps.dwCaps;
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}
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else
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{
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vm_caps = pvm->ddsCapsAlt.dwCaps;
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}
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if( (caps & vm_caps) == 0 )
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{
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pvidmem = VidMemAlloc( pvm->lpHeap, vm_width, vm_height );
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if( pvidmem != (FLATPTR) NULL )
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{
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VidMemGetRectStride( pvm->lpHeap, pnewpitch );
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*ppheap = pvm->lpHeap;
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return pvidmem;
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}
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}
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}
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return (FLATPTR) NULL;
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} /* vmAlloc */
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/*
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* AllocSurfaceMem
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*
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* Allocate the memory for all surfaces that need it...
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*/
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HRESULT AllocSurfaceMem(
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LPDDRAWI_DIRECTDRAW_GBL this,
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LPDDRAWI_DDRAWSURFACE_LCL *slist_lcl,
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int nsurf )
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{
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DWORD vm_width;
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DWORD vm_height;
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int scnt;
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LPDDRAWI_DDRAWSURFACE_LCL psurf_lcl;
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LPDDRAWI_DDRAWSURFACE_GBL psurf;
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DWORD caps;
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FLATPTR pvidmem;
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LPVMEMHEAP pheap;
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BOOL do_alloc;
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LONG newpitch;
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BOOL save_pitch;
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/*
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* allocate any remaining video memory needed
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*/
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for( scnt=0;scnt<nsurf;scnt++ )
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{
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newpitch = 0;
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DPF( 8, "*** Alloc Surface %d ***", scnt );
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/*
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* get preset video memory pointer
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*/
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pheap = NULL;
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psurf_lcl = slist_lcl[scnt];
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psurf = psurf_lcl->lpGbl;
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do_alloc = TRUE;
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pvidmem = psurf->fpVidMem; //If this is a Restore, this will be non-null only if it's the gdi surface...
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//that's the only surface that doesn't have its vram deallocated
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//by DestroySurface. (assumption of jeffno 960122)
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DPF( 8, "pvidmem = %08lx", pvidmem );
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save_pitch = FALSE;
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if( pvidmem != (FLATPTR) NULL )
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{
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if( pvidmem != (FLATPTR) DDHAL_PLEASEALLOC_BLOCKSIZE )
|
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{
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do_alloc = FALSE;
|
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|
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#ifdef SHAREDZ
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/*
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* NOTE: Previously if we did not do the alloc we
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* overwrote the heap pointer with NULL. This broke
|
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* the shared surfaces stuff. So now we assume that
|
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* if the heap pointer is non-NULL we will preserve
|
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* that value.
|
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*
|
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* !!! NOTE: Will this break stuff. Need to check this
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* out.
|
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*/
|
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if( psurf->lpVidMemHeap )
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pheap = psurf->lpVidMemHeap;
|
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#endif
|
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}
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save_pitch = TRUE;
|
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}
|
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caps = psurf_lcl->ddsCaps.dwCaps;
|
|
|
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/*
|
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* are we creating a primary surface?
|
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*/
|
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if( psurf->dwGlobalFlags & DDRAWISURFGBL_ISGDISURFACE) //caps & DDSCAPS_PRIMARYSURFACE )
|
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{
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DPF(8,"allocing for primary (do_alloc==%d)",do_alloc);
|
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if( do_alloc )
|
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{
|
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pvidmem = this->fpPrimaryOrig;
|
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}
|
|
|
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/*
|
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* must be an offscreen surface of some kind
|
|
*/
|
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}
|
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else
|
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{
|
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/*
|
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* get a video memory pointer if no other ptr specified
|
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*/
|
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if( do_alloc )
|
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{
|
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/*
|
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* get area of surface
|
|
*/
|
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if( pvidmem == (FLATPTR) DDHAL_PLEASEALLOC_BLOCKSIZE )
|
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{
|
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vm_width = psurf->dwBlockSizeX;
|
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vm_height = psurf->dwBlockSizeY;
|
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DPF( 3, "Driver requested width=%ld, height%ld", vm_width, vm_height );
|
|
}
|
|
else
|
|
{
|
|
if( caps & DDSCAPS_EXECUTEBUFFER )
|
|
{
|
|
/*
|
|
* Execute buffers are long, thin surfaces for the purposes
|
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* of VM allocation.
|
|
*/
|
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vm_width = psurf->dwLinearSize;
|
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vm_height = 1UL;
|
|
}
|
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else
|
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{
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vm_width = (DWORD) labs( psurf->lPitch );
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vm_height = (DWORD) psurf->wHeight;
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}
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DPF( 8, "width = %ld, height = %ld", vm_width, vm_height );
|
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}
|
|
|
|
/*
|
|
* try to allocate memory
|
|
*/
|
|
if( caps & DDSCAPS_SYSTEMMEMORY )
|
|
{
|
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pvidmem = 0;
|
|
pheap = NULL;
|
|
}
|
|
else
|
|
{
|
|
pvidmem = vmAlloc( this, vm_width, vm_height, &pheap,
|
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caps, TRUE, &newpitch );
|
|
if( pvidmem == (FLATPTR) NULL )
|
|
{
|
|
pvidmem = vmAlloc( this, vm_width, vm_height, &pheap,
|
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caps, FALSE, &newpitch );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* zero out overloaded fields
|
|
*/
|
|
psurf->dwBlockSizeX = 0;
|
|
psurf->dwBlockSizeY = 0;
|
|
|
|
/*
|
|
* if no video memory found, fail
|
|
*/
|
|
if( pvidmem == (FLATPTR) NULL && !(psurf->dwGlobalFlags & DDRAWISURFGBL_ISGDISURFACE) )//(caps & DDSCAPS_PRIMARYSURFACE) )
|
|
{
|
|
DPF( 4, "Out of Video Memory. requested block: (%ld,%ld) (%ld bytes)",
|
|
vm_width, vm_height, vm_height * vm_width );
|
|
// set the heap to null so we don't mistakenly try to free the memory in DestroySurface
|
|
psurf->lpVidMemHeap = NULL;
|
|
return DDERR_OUTOFVIDEOMEMORY;
|
|
}
|
|
|
|
/*
|
|
* save pointer to video memory that we are using
|
|
*/
|
|
psurf->lpVidMemHeap = pheap;
|
|
psurf->fpVidMem = pvidmem;
|
|
if( newpitch != 0 && !save_pitch && !( caps & DDSCAPS_EXECUTEBUFFER ) )
|
|
{
|
|
/*
|
|
* The stride is not relevant for an execute buffer so we don't
|
|
* override it.
|
|
*/
|
|
psurf->lPitch = newpitch;
|
|
}
|
|
}
|
|
return DD_OK;
|
|
|
|
} /* AllocSurfaceMem */
|
|
|
|
/*
|
|
* checkCaps
|
|
*
|
|
* check to make sure various caps combinations are valid
|
|
*/
|
|
static HRESULT checkCaps( DWORD caps, LPDDRAWI_DIRECTDRAW_INT pdrv_int )
|
|
{
|
|
/*
|
|
* check for no caps at all!
|
|
*/
|
|
if( caps == 0 )
|
|
{
|
|
DPF_ERR( "no caps specified" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
|
|
/*
|
|
* check for bogus caps.
|
|
*/
|
|
if( caps & ~DDSCAPS_VALID )
|
|
{
|
|
DPF_ERR( "invalid caps specified" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
|
|
/*
|
|
* check for "read-only" caps
|
|
*/
|
|
if( caps & (DDSCAPS_PALETTE|
|
|
DDSCAPS_VISIBLE|
|
|
DDSCAPS_WRITEONLY) )
|
|
{
|
|
DPF_ERR( "read-only cap specified" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
|
|
/*
|
|
* For non-v1 interfaces, FRONTBUFFER and BACKBUFFER are read-only
|
|
*/
|
|
if( pdrv_int->lpVtbl != &ddCallbacks )
|
|
{
|
|
if( caps & (DDSCAPS_FRONTBUFFER | DDSCAPS_BACKBUFFER) )
|
|
{
|
|
DPF_ERR( "can't specify FRONTBUFFER or BACKBUFFER");
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Rather than having lots of little checks for execute buffers
|
|
* we simply check for what can mix with execute buffers right
|
|
* up front - its not a lot - system and video memory only.
|
|
*/
|
|
if( caps & DDSCAPS_EXECUTEBUFFER )
|
|
{
|
|
if( caps & ~( DDSCAPS_EXECUTEBUFFER |
|
|
DDSCAPS_SYSTEMMEMORY |
|
|
DDSCAPS_VIDEOMEMORY ) )
|
|
{
|
|
DPF_ERR( "invalid caps specified with execute buffer" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* check for caps that don't mix with complex
|
|
*/
|
|
if( caps & DDSCAPS_COMPLEX )
|
|
{
|
|
if( caps & ( DDSCAPS_FRONTBUFFER) )
|
|
{
|
|
DPF_ERR( "invalid flags with complex" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
if( caps & DDSCAPS_BACKBUFFER )
|
|
{
|
|
if( !(caps & DDSCAPS_ALPHA) && !(caps & DDSCAPS_ZBUFFER))
|
|
{
|
|
DPF_ERR( "invalid flags: complex & backbuffer, but no alpha/z" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
if( (caps & DDSCAPS_FLIP))
|
|
{
|
|
DPF_ERR( "invalid flags: complex & backbuffer & flip" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
if( !(caps & (DDSCAPS_BACKBUFFER|
|
|
DDSCAPS_OFFSCREENPLAIN|
|
|
DDSCAPS_OVERLAY|
|
|
DDSCAPS_TEXTURE|
|
|
DDSCAPS_PRIMARYSURFACE)) )
|
|
{
|
|
DPF_ERR( "invalid flags: wrong kind of complex surface" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
if( !(caps & (DDSCAPS_FLIP|DDSCAPS_ALPHA|DDSCAPS_MIPMAP|DDSCAPS_ZBUFFER) ) )
|
|
{
|
|
DPF_ERR( "invalid flags: must specify at least one of FLIP, ZBUFFER or MIPMAP" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
/*
|
|
* flags that can't be used if not complex
|
|
*/
|
|
}
|
|
else
|
|
{
|
|
// if( caps & DDSCAPS_BACKBUFFER ) {
|
|
// DPF_ERR( "invalid flags: backbuffer specfied for non-complex surface" );
|
|
// return DDERR_INVALIDCAPS;
|
|
// }
|
|
}
|
|
|
|
/*
|
|
* check for caps that don't mix with backbuffer
|
|
*/
|
|
if( caps & DDSCAPS_BACKBUFFER )
|
|
{
|
|
if( caps & (DDSCAPS_ALPHA |
|
|
DDSCAPS_FRONTBUFFER ) )
|
|
{
|
|
DPF_ERR( "Invalid flags with backbuffer" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* check for flags that don't mix with a flipping surface
|
|
*/
|
|
if( caps & DDSCAPS_FLIP )
|
|
{
|
|
if( !(caps & DDSCAPS_COMPLEX) )
|
|
{
|
|
DPF_ERR( "invalid flags - flip but not complex" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* check for flags that don't mix with a primary surface
|
|
*/
|
|
if( caps & DDSCAPS_PRIMARYSURFACE )
|
|
{
|
|
if( caps & (DDSCAPS_BACKBUFFER |
|
|
DDSCAPS_OFFSCREENPLAIN |
|
|
DDSCAPS_OVERLAY |
|
|
DDSCAPS_TEXTURE ) )
|
|
{
|
|
DPF_ERR( "invalid flags with primary" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
/* GEE: can't allow complex attachments to the primary surface
|
|
* because of our attachment code. The user is allowed to build
|
|
* these manually.
|
|
*/
|
|
#ifdef USE_ALPHA
|
|
if( (caps & DDSCAPS_ALPHA) && !(caps & DDSCAPS_FLIP) )
|
|
{
|
|
DPF_ERR( "invalid flags with primary - alpha but not flippable" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
#endif
|
|
if( (caps & DDSCAPS_ZBUFFER) && !(caps & DDSCAPS_FLIP) )
|
|
{
|
|
DPF_ERR( "invalid flags with primary - z but not flippable" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* flags that don't mix with a plain offscreen surface
|
|
*/
|
|
if( caps & DDSCAPS_OFFSCREENPLAIN )
|
|
{
|
|
/*
|
|
* I see no reason not to allow offscreen plains to be created
|
|
* with alpha's and z-buffers. So they have been enabled.
|
|
*/
|
|
if( caps & (DDSCAPS_BACKBUFFER |
|
|
DDSCAPS_OVERLAY |
|
|
DDSCAPS_TEXTURE ) )
|
|
{
|
|
DPF_ERR( "invalid flags with offscreenplain" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* check for flags that don't mix with asking for an overlay
|
|
*/
|
|
if( caps & DDSCAPS_OVERLAY )
|
|
{
|
|
/* GEE: should remove BACKBUFFER here for 3D stuff */
|
|
if( caps & (DDSCAPS_BACKBUFFER |
|
|
DDSCAPS_OFFSCREENPLAIN |
|
|
DDSCAPS_TEXTURE ) )
|
|
{
|
|
DPF_ERR( "invalid flags with overlay" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
if( (caps & DDSCAPS_ZBUFFER) && !(caps & DDSCAPS_FLIP) )
|
|
{
|
|
DPF_ERR( "invalid flags with overlay - zbuffer but not flippable" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
#ifdef USE_ALPHA
|
|
if( (caps & DDSCAPS_ALPHA) && !(caps & DDSCAPS_FLIP) )
|
|
{
|
|
DPF_ERR( "invalid flags with overlay - alpha but not flippable" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* check for flags that don't mix with asking for an texture
|
|
*/
|
|
if( caps & DDSCAPS_TEXTURE )
|
|
{
|
|
}
|
|
|
|
/*
|
|
* validate MIPMAP
|
|
*/
|
|
if( caps & DDSCAPS_MIPMAP )
|
|
{
|
|
/*
|
|
* Must be used in conjunction with TEXTURE.
|
|
*/
|
|
if( !( caps & DDSCAPS_TEXTURE ) )
|
|
{
|
|
DPF_ERR( "invalid flags, mip-map specified but not texture" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
|
|
/*
|
|
* Can't specify Z-buffer and mip-map.
|
|
*/
|
|
if( caps & DDSCAPS_ZBUFFER )
|
|
{
|
|
DPF_ERR( "invalid flags, can't specify z-buffer with mip-map" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* check for flags that don't mix with asking for a z-buffer
|
|
*/
|
|
if( caps & DDSCAPS_ZBUFFER )
|
|
{
|
|
#ifdef USE_ALPHA
|
|
if( caps & DDSCAPS_ALPHA )
|
|
{
|
|
if( !(caps & DDSCAPS_COMPLEX) )
|
|
{
|
|
DPF_ERR( "invalid flags, alpha and Z specified, but not complex" );
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if( ( caps & DDSCAPS_BACKBUFFER ) && !( caps & DDSCAPS_COMPLEX ) )
|
|
{
|
|
/*
|
|
* Can't specify z-buffer and back-buffer unless you also specify
|
|
* complex.
|
|
*/
|
|
DPF_ERR( "invalid flags, z-buffer and back-buffer specified but not complex" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
|
|
#ifdef SHAREDZ
|
|
/*
|
|
* Validate SHAREDZBUFFER
|
|
*/
|
|
if( caps & DDSCAPS_SHAREDZBUFFER )
|
|
{
|
|
if( !( caps & DDSCAPS_ZBUFFER ) )
|
|
{
|
|
DPF_ERR( "invalid flags, shared z-buffer specified, but not z-buffer" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Validate SHAREDBACKBUFFER
|
|
*/
|
|
if( caps & DDSCAPS_SHAREDBACKBUFFER )
|
|
{
|
|
/*
|
|
* Either BACKBUFFER must be specified explicitly or we must be part of
|
|
* a complex flippable chain.
|
|
*/
|
|
if( !( ( caps & DDSCAPS_BACKBUFFER ) ||
|
|
( ( caps & ( DDSCAPS_COMPLEX | DDSCAPS_FLIP ) ) ==
|
|
( DDSCAPS_COMPLEX | DDSCAPS_FLIP ) ) ) )
|
|
{
|
|
DPF_ERR("invalid flags, shared back-buffer specified but not back-buffer or flippable chain" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* check for flags that don't mix with asking for an alpha surface
|
|
*/
|
|
#ifdef USE_ALPHA
|
|
if( caps & DDSCAPS_ALPHA )
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* check for flags that don't mix with asking for an alloc-on-load surface
|
|
*/
|
|
if( caps & DDSCAPS_ALLOCONLOAD )
|
|
{
|
|
/*
|
|
* Must be texture map currently.
|
|
*/
|
|
if( !( caps & DDSCAPS_TEXTURE ) )
|
|
{
|
|
DPF_ERR( "invalid flags, allocate-on-load surfaces must be texture maps" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
|
|
return DD_OK;
|
|
} /* checkCaps */
|
|
|
|
#ifdef SHAREDZ
|
|
/*
|
|
* For this initial version of shared back and z support the shared back and
|
|
* z-buffers can only be full screen. We don't allow a specification of size.
|
|
*/
|
|
#define CAPS_NOHEIGHT_REQUIRED ( DDSCAPS_PRIMARYSURFACE | DDSCAPS_EXECUTEBUFFER | DDSCAPS_SHAREDZBUFFER | DDSCAPS_SHAREDBACKBUFFER )
|
|
#define CAPS_NOWIDTH_REQUIRED ( DDSCAPS_PRIMARYSURFACE | DDSCAPS_SHAREDZBUFFER | DDSCAPS_SHAREDBACKBUFFER )
|
|
#else
|
|
#define CAPS_NOHEIGHT_REQUIRED ( DDSCAPS_PRIMARYSURFACE | DDSCAPS_EXECUTEBUFFER )
|
|
#define CAPS_NOWIDTH_REQUIRED ( DDSCAPS_PRIMARYSURFACE )
|
|
#endif
|
|
|
|
/*
|
|
* checkSurfaceDesc
|
|
*
|
|
* make sure a provided surface description is OK
|
|
*/
|
|
static HRESULT checkSurfaceDesc(
|
|
LPDDSURFACEDESC lpsd,
|
|
LPDDRAWI_DIRECTDRAW_GBL pdrv,
|
|
DWORD FAR *psflags,
|
|
BOOL emulation,
|
|
BOOL real_sysmem,
|
|
LPDDRAWI_DIRECTDRAW_INT pdrv_int )
|
|
{
|
|
DWORD sdflags;
|
|
DWORD pfflags;
|
|
DWORD caps;
|
|
HRESULT ddrval;
|
|
DWORD bpp;
|
|
BOOL halonly;
|
|
BOOL helonly;
|
|
int power;
|
|
|
|
if( emulation )
|
|
{
|
|
helonly = TRUE;
|
|
halonly = FALSE;
|
|
} else {
|
|
helonly = FALSE;
|
|
halonly = TRUE;
|
|
}
|
|
|
|
|
|
/*
|
|
* we assume caps always - DDSD_CAPS is default
|
|
*/
|
|
sdflags = lpsd->dwFlags;
|
|
caps = lpsd->ddsCaps.dwCaps;
|
|
|
|
/*
|
|
* check complex
|
|
*/
|
|
if( !(caps & DDSCAPS_COMPLEX) )
|
|
{
|
|
if( sdflags & DDSD_BACKBUFFERCOUNT )
|
|
{
|
|
DPF_ERR( "backbuff count on non-complex surface" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
if( sdflags & DDSD_MIPMAPCOUNT )
|
|
{
|
|
DPF_ERR( "mip-map count on non-complex surface" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( ( sdflags & DDSD_BACKBUFFERCOUNT ) && ( sdflags & DDSD_MIPMAPCOUNT ) )
|
|
{
|
|
DPF_ERR( "Currently can't specify both a back buffer and mip-map count" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* check flip
|
|
*/
|
|
if( caps & DDSCAPS_FLIP )
|
|
{
|
|
if( !(caps & DDSCAPS_COMPLEX) )
|
|
{
|
|
DPF_ERR( "flip specified without complex" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
if( !(sdflags & DDSD_BACKBUFFERCOUNT) || (lpsd->dwBackBufferCount == 0) )
|
|
{
|
|
DPF_ERR( "flip specified without any backbuffers" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
/*
|
|
* Currently we don't allow the creating of flippable mip-map
|
|
* chains with a single call to CreateSurface(). They must be
|
|
* built manually. This will be implmented but is not in place
|
|
* as yet. Hence, for now we fail the attempt with a
|
|
* DDERR_UNSUPPORTED.
|
|
*/
|
|
if( sdflags & DDSD_MIPMAPCOUNT )
|
|
{
|
|
DPF_ERR( "Creating flippable mip-map chains with a single call is not yet implemented" );
|
|
return DDERR_UNSUPPORTED;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* check various caps combinations
|
|
*/
|
|
ddrval = checkCaps( caps, pdrv_int );
|
|
if( ddrval != DD_OK )
|
|
{
|
|
return ddrval;
|
|
}
|
|
|
|
/*
|
|
* check execute buffer.
|
|
*/
|
|
if( caps & DDSCAPS_EXECUTEBUFFER )
|
|
{
|
|
if( !( sdflags & DDSD_WIDTH ) )
|
|
{
|
|
DPF_ERR( "Must specify size (width) when creating an execute buffer" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
if( sdflags & ~( DDSD_CAPS | DDSD_WIDTH ) )
|
|
{
|
|
DPF_ERR( "Can only specify DDSD_CAPS and DDSD_WIDTH (size) when creating an execute buffer" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* check alpha
|
|
*/
|
|
if( (caps & DDSCAPS_ALPHA) )
|
|
{
|
|
#pragma message( REMIND( "Alpha not supported in Rev 1" ))
|
|
DPF_ERR( "Alpha not supported this release" );
|
|
return DDERR_INVALIDPARAMS;
|
|
#ifdef USE_ALPHA
|
|
if( !(sdflags & DDSD_ALPHABITDEPTH) )
|
|
{
|
|
DPF_ERR( "AlphaBitDepth required in SurfaceDesc" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
if( (lpsd->dwAlphaBitDepth > 8) ||
|
|
GetBytesFromPixels( 1, lpsd->dwAlphaBitDepth ) == 0 )
|
|
{
|
|
DPF_ERR( "Invalid AlphaBitDepth specified in SurfaceDesc" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
#endif
|
|
}
|
|
else if( sdflags & DDSD_ALPHABITDEPTH )
|
|
{
|
|
DPF_ERR( "AlphaBitDepth only valid for alpha surfaces" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
|
|
/*
|
|
* check z buffer
|
|
*/
|
|
if( (caps & DDSCAPS_ZBUFFER) )
|
|
{
|
|
if( !(sdflags & DDSD_ZBUFFERBITDEPTH) )
|
|
{
|
|
DPF_ERR( "ZBufferBitDepth required" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
if( (lpsd->dwZBufferBitDepth < 8) ||
|
|
(GetBytesFromPixels( 1, lpsd->dwZBufferBitDepth ) == 0 ) )
|
|
{
|
|
DPF_ERR( "Invalid ZBufferBitDepth specified in SurfaceDesc" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
else if( sdflags & DDSD_ZBUFFERBITDEPTH )
|
|
{
|
|
DPF_ERR( "ZBufferBitDepth only valid for z buffer surfaces" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
|
|
/*
|
|
* Validate height/width
|
|
*/
|
|
if( sdflags & DDSD_HEIGHT )
|
|
{
|
|
if( (caps & DDSCAPS_PRIMARYSURFACE) )
|
|
{
|
|
DPF_ERR( "Height can't be specified for primary surface" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
#ifdef SHAREDZ
|
|
if( caps & ( DDSCAPS_SHAREDZBUFFER | DDSCAPS_SHAREDBACKBUFFER ) )
|
|
{
|
|
DPF_ERR( "Height can't be specified for shared back or z-buffers" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
#endif
|
|
if( lpsd->dwHeight < 1 )
|
|
{
|
|
DPF_ERR( "Invalid height specified" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( !(caps & CAPS_NOHEIGHT_REQUIRED) )
|
|
{
|
|
DPF_ERR( "Height must be specified for surface" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
if( sdflags & DDSD_WIDTH )
|
|
{
|
|
DWORD maxwidth;
|
|
|
|
if( (caps & DDSCAPS_PRIMARYSURFACE) )
|
|
{
|
|
DPF_ERR( "Width can't be specified for primary surface" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
#ifdef SHAREDZ
|
|
if( caps & ( DDSCAPS_SHAREDZBUFFER | DDSCAPS_SHAREDBACKBUFFER ) )
|
|
{
|
|
DPF_ERR( "Width can't be specified for shared back or z-buffers" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
#endif
|
|
if( lpsd->dwWidth < 1 )
|
|
{
|
|
DPF_ERR( "Invalid width specified" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
#pragma message( REMIND( "Surfaces can't be wider than pitch in Rev 1" ))
|
|
if( ( !real_sysmem ) && !( caps & DDSCAPS_EXECUTEBUFFER ) )
|
|
{
|
|
maxwidth = getPixelsFromBytes( pdrv->vmiData.lDisplayPitch,
|
|
pdrv->vmiData.ddpfDisplay.dwRGBBitCount );
|
|
|
|
if( lpsd->dwWidth > maxwidth )
|
|
{
|
|
DPF( 0, "Width too big: %ld reqested, max is %ld", lpsd->dwWidth, maxwidth );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( !(caps & CAPS_NOWIDTH_REQUIRED) )
|
|
{
|
|
DPF_ERR( "Width must be specified for surface" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Extra validation for mip-map width and height (must be a whole power of 2)
|
|
* and number of levels.
|
|
*/
|
|
if( caps & DDSCAPS_MIPMAP )
|
|
{
|
|
if( sdflags & DDSD_MIPMAPCOUNT )
|
|
{
|
|
if( lpsd->dwMipMapCount == 0 )
|
|
{
|
|
DPF_ERR( "Invalid number of mip-map levels (0) specified" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
|
|
if( sdflags & DDSD_HEIGHT )
|
|
{
|
|
if( !isPowerOf2( lpsd->dwHeight, &power ) )
|
|
{
|
|
DPF_ERR( "Invalid height: height of a mip-map must be whole power of 2" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
if( sdflags & DDSD_MIPMAPCOUNT )
|
|
{
|
|
if( lpsd->dwMipMapCount > (DWORD) ( power + 1 ) )
|
|
{
|
|
DPF( 1, "Invalid number of mip-map levels (%ld) specified", lpsd->dwMipMapCount );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
}
|
|
if( sdflags & DDSD_WIDTH )
|
|
{
|
|
if( !isPowerOf2( lpsd->dwWidth, &power ) )
|
|
{
|
|
DPF_ERR( "Invalid width: width of a mip-map must be whole power of 2" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
if( sdflags & DDSD_MIPMAPCOUNT )
|
|
{
|
|
if( lpsd->dwMipMapCount > (DWORD) ( power + 1 ) )
|
|
{
|
|
DPF( 1, "Invalid number of mip-map levels (%ld) specified", lpsd->dwMipMapCount );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* validate pixel format
|
|
*/
|
|
if( sdflags & DDSD_PIXELFORMAT )
|
|
{
|
|
if( caps & DDSCAPS_PRIMARYSURFACE )
|
|
{
|
|
DPF_ERR( "Pixel format cannot be specified for primary surface" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
if( (caps & DDSCAPS_ALPHA) | (caps & DDSCAPS_ZBUFFER) )
|
|
{
|
|
DPF_ERR( "Can't specify alpha/z-buffer with pixel format" );
|
|
return DDERR_INVALIDPIXELFORMAT;
|
|
}
|
|
pfflags = lpsd->ddpfPixelFormat.dwFlags;
|
|
if( pfflags & (DDPF_ZBUFFER|DDPF_ALPHA) )
|
|
{
|
|
DPF_ERR( "Can't specify alpha/z-buffer flags in pixel format" );
|
|
return DDERR_INVALIDPIXELFORMAT;
|
|
}
|
|
if( pfflags & UNDERSTOOD_PF )
|
|
{
|
|
bpp = lpsd->ddpfPixelFormat.dwRGBBitCount;
|
|
if( GetBytesFromPixels( 1, bpp ) == 0 )
|
|
{
|
|
DPF_ERR( "Invalid BPP specified in pixel format" );
|
|
return DDERR_INVALIDPIXELFORMAT;
|
|
}
|
|
if( pfflags & DDPF_RGB )
|
|
{
|
|
if( pfflags & (DDPF_YUV) )
|
|
{
|
|
DPF_ERR( "Invalid flags specified in pixel format" );
|
|
return DDERR_INVALIDPIXELFORMAT;
|
|
}
|
|
}
|
|
if( pfflags & DDPF_PALETTEINDEXED8 )
|
|
{
|
|
if( pfflags & (DDPF_PALETTEINDEXED1 |
|
|
DDPF_PALETTEINDEXED2 |
|
|
DDPF_PALETTEINDEXED4 |
|
|
DDPF_PALETTEINDEXEDTO8 ) )
|
|
{
|
|
DPF_ERR( "Invalid flags specified in pixel format" );
|
|
return DDERR_INVALIDPIXELFORMAT;
|
|
}
|
|
|
|
/*
|
|
* ensure that we have zero for masks
|
|
*/
|
|
lpsd->ddpfPixelFormat.dwRBitMask = 0;
|
|
lpsd->ddpfPixelFormat.dwGBitMask = 0;
|
|
lpsd->ddpfPixelFormat.dwBBitMask = 0;
|
|
lpsd->ddpfPixelFormat.dwRGBAlphaBitMask = 0;
|
|
}
|
|
lpsd->ddpfPixelFormat.dwFourCC = 0;
|
|
}
|
|
}
|
|
|
|
|
|
// ACKACK: should caps be filled in in surface desc as well as sdflags?
|
|
|
|
/*
|
|
* validate dest overlay color key
|
|
*/
|
|
if( sdflags & DDSD_CKDESTOVERLAY )
|
|
{
|
|
ddrval = CheckColorKey( DDCKEY_DESTOVERLAY, pdrv,
|
|
&lpsd->ddckCKDestOverlay, psflags,
|
|
halonly, helonly );
|
|
if( ddrval != DD_OK )
|
|
{
|
|
return ddrval;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* validate dest blt color key
|
|
*/
|
|
if( sdflags & DDSD_CKDESTBLT )
|
|
{
|
|
ddrval = CheckColorKey( DDCKEY_DESTBLT, pdrv,
|
|
&lpsd->ddckCKDestBlt, psflags,
|
|
halonly, helonly );
|
|
if( ddrval != DD_OK )
|
|
{
|
|
return ddrval;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* validate src overlay color key
|
|
*/
|
|
if( sdflags & DDSD_CKSRCOVERLAY )
|
|
{
|
|
ddrval = CheckColorKey( DDCKEY_SRCOVERLAY, pdrv,
|
|
&lpsd->ddckCKSrcOverlay, psflags,
|
|
halonly, helonly );
|
|
if( ddrval != DD_OK )
|
|
{
|
|
return ddrval;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* validate src blt color key
|
|
*/
|
|
if( sdflags & DDSD_CKSRCBLT )
|
|
{
|
|
ddrval = CheckColorKey( DDCKEY_SRCBLT, pdrv,
|
|
&lpsd->ddckCKSrcBlt, psflags,
|
|
halonly, helonly );
|
|
if( ddrval != DD_OK )
|
|
{
|
|
return ddrval;
|
|
}
|
|
}
|
|
|
|
return DD_OK;
|
|
|
|
} /* checkSurfaceDesc */
|
|
|
|
/*
|
|
* ComputePitch
|
|
*
|
|
* compute the pitch for a given width
|
|
*/
|
|
DWORD ComputePitch(
|
|
LPDDRAWI_DIRECTDRAW_GBL this,
|
|
DWORD caps,
|
|
DWORD width,
|
|
UINT bpp )
|
|
{
|
|
DWORD vm_align;
|
|
DWORD vm_pitch;
|
|
|
|
/*
|
|
* adjust area for bpp
|
|
*/
|
|
vm_pitch = GetBytesFromPixels( width, bpp );
|
|
if( vm_pitch == 0 )
|
|
{
|
|
return vm_pitch;
|
|
}
|
|
|
|
/*
|
|
* Increase the pitch of the surface so that it is a
|
|
* multiple of the alignment requirement. This
|
|
* guarantees each scanline will start properly aligned.
|
|
* The alignment is no longer required to be a power of
|
|
* two but it must be divisible by 4 because of the
|
|
* BLOCK_BOUNDARY requirement in the heap management
|
|
* code.
|
|
* The alignments are all verified to be non-zero during
|
|
* driver initialization except for dwAlphaAlign.
|
|
*/
|
|
|
|
/*
|
|
* system memory?
|
|
*/
|
|
if( caps & DDSCAPS_SYSTEMMEMORY )
|
|
{
|
|
vm_align = sizeof( DWORD);
|
|
vm_pitch = alignPitch( vm_pitch, vm_align );
|
|
return vm_pitch;
|
|
}
|
|
|
|
/*
|
|
* overlay memory
|
|
*/
|
|
if( caps & DDSCAPS_OVERLAY )
|
|
{
|
|
vm_align = this->vmiData.dwOverlayAlign;
|
|
vm_pitch = alignPitch( vm_pitch, vm_align );
|
|
/*
|
|
* texture memory
|
|
*/
|
|
}
|
|
else if( caps & DDSCAPS_TEXTURE )
|
|
{
|
|
vm_align = this->vmiData.dwTextureAlign;
|
|
vm_pitch = alignPitch( vm_pitch, vm_align );
|
|
/*
|
|
* z buffer memory
|
|
*/
|
|
}
|
|
else if( caps & DDSCAPS_ZBUFFER )
|
|
{
|
|
vm_align = this->vmiData.dwZBufferAlign;
|
|
vm_pitch = alignPitch( vm_pitch, vm_align );
|
|
/*
|
|
* alpha memory
|
|
*/
|
|
}
|
|
else if( caps & DDSCAPS_ALPHA )
|
|
{
|
|
vm_align = this->vmiData.dwAlphaAlign;
|
|
vm_pitch = alignPitch( vm_pitch, vm_align );
|
|
/*
|
|
* regular video memory
|
|
*/
|
|
}
|
|
else
|
|
{
|
|
vm_align = this->vmiData.dwOffscreenAlign;
|
|
vm_pitch = alignPitch( vm_pitch, vm_align );
|
|
}
|
|
return vm_pitch;
|
|
|
|
} /* ComputePitch */
|
|
|
|
/*
|
|
* IsDifferentPixelFormat
|
|
*
|
|
* determine if two pixel formats are the same or not
|
|
*
|
|
* (CMcC) 12/14/95 Really useful - so no longer static
|
|
*/
|
|
BOOL IsDifferentPixelFormat( LPDDPIXELFORMAT pdpf1, LPDDPIXELFORMAT pdpf2 )
|
|
{
|
|
/*
|
|
* same flags?
|
|
*/
|
|
if( pdpf1->dwFlags != pdpf2->dwFlags )
|
|
{
|
|
DPF( 8, "Flags differ!" );
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* same bitcount for non-YUV surfaces?
|
|
*/
|
|
if( !(pdpf1->dwFlags & DDPF_YUV) )
|
|
{
|
|
if( pdpf1->dwRGBBitCount != pdpf2->dwRGBBitCount )
|
|
{
|
|
DPF( 8, "RGB Bitcount differs!" );
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* same RGB properties?
|
|
*/
|
|
if( pdpf1->dwFlags & DDPF_RGB )
|
|
{
|
|
if( pdpf1->dwRBitMask != pdpf2->dwRBitMask )
|
|
{
|
|
DPF( 8, "RBitMask differs!" );
|
|
return TRUE;
|
|
}
|
|
if( pdpf1->dwGBitMask != pdpf2->dwGBitMask )
|
|
{
|
|
DPF( 8, "GBitMask differs!" );
|
|
return TRUE;
|
|
}
|
|
if( pdpf1->dwBBitMask != pdpf2->dwBBitMask )
|
|
{
|
|
DPF( 8, "BBitMask differs!" );
|
|
return TRUE;
|
|
}
|
|
if( pdpf1->dwRGBAlphaBitMask != pdpf2->dwRGBAlphaBitMask )
|
|
{
|
|
DPF( 8, "RGBAlphaBitMask differs!" );
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* same YUV properties?
|
|
*/
|
|
if( pdpf1->dwFlags & DDPF_YUV )
|
|
{
|
|
DPF( 8, "YUV???" );
|
|
if( pdpf1->dwFourCC != pdpf2->dwFourCC )
|
|
{
|
|
return TRUE;
|
|
}
|
|
if( pdpf1->dwYUVBitCount != pdpf2->dwYUVBitCount )
|
|
{
|
|
return TRUE;
|
|
}
|
|
if( pdpf1->dwYBitMask != pdpf2->dwYBitMask )
|
|
{
|
|
return TRUE;
|
|
}
|
|
if( pdpf1->dwUBitMask != pdpf2->dwUBitMask )
|
|
{
|
|
return TRUE;
|
|
}
|
|
if( pdpf1->dwVBitMask != pdpf2->dwVBitMask )
|
|
{
|
|
return TRUE;
|
|
}
|
|
if( pdpf1->dwYUVAlphaBitMask != pdpf2->dwYUVAlphaBitMask )
|
|
{
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
|
|
} /* IsDifferentPixelFormat */
|
|
|
|
#define FIX_SLIST_CNT 16 // number of surfaces before malloc reqd
|
|
|
|
/*
|
|
* initMipMapDim
|
|
*
|
|
* If we have a mip-map description then we can fill in some
|
|
* fields for the caller. This function needs to be invoked
|
|
* before the checkSurfaceDesc is called as it may put in
|
|
* place some fields checked by that function.
|
|
*
|
|
* NOTE: This function may modify the surface description.
|
|
*/
|
|
static HRESULT initMipMapDim( LPDDSURFACEDESC lpsd )
|
|
{
|
|
DWORD sdflags;
|
|
DWORD caps;
|
|
int heightPower;
|
|
int widthPower;
|
|
|
|
DDASSERT( lpsd != NULL );
|
|
DDASSERT( lpsd->ddsCaps.dwCaps & DDSCAPS_MIPMAP );
|
|
|
|
sdflags = lpsd->dwFlags;
|
|
caps = lpsd->ddsCaps.dwCaps;
|
|
|
|
/*
|
|
* This stuff is only relevant for complex, non-flipable
|
|
* mip-maps.
|
|
*/
|
|
if( ( caps & DDSCAPS_COMPLEX ) && !( caps & DDSCAPS_FLIP ) )
|
|
{
|
|
if( ( ( sdflags & DDSD_HEIGHT ) && ( sdflags & DDSD_WIDTH ) ) &&
|
|
!( sdflags & DDSD_MIPMAPCOUNT ) )
|
|
{
|
|
/*
|
|
* Width and height but no number of levels so compute the
|
|
* maximum number of mip-map levels supported by the given
|
|
* width and height.
|
|
*/
|
|
if( !isPowerOf2( lpsd->dwHeight, &heightPower ) )
|
|
{
|
|
DPF_ERR( "Invalid height: height of a mip-map must be whole power of 2" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
if( !isPowerOf2( lpsd->dwWidth, &widthPower ) )
|
|
{
|
|
DPF_ERR( "Invalid width: width of a mip-map must be whole powers of 2" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
|
|
lpsd->dwMipMapCount = (DWORD)(min(heightPower, widthPower) + 1);
|
|
lpsd->dwFlags |= DDSD_MIPMAPCOUNT;
|
|
}
|
|
else if( ( sdflags & DDSD_MIPMAPCOUNT ) &&
|
|
!( ( sdflags & DDSD_WIDTH ) || ( sdflags & DDSD_HEIGHT ) ) )
|
|
{
|
|
/*
|
|
* We have been given a mip-map count but no width
|
|
* and height so compute the width and height assuming
|
|
* the smallest map is 1x1.
|
|
* NOTE: We don't help out if they supply a width or height but
|
|
* not both.
|
|
*/
|
|
if( lpsd->dwMipMapCount == 0 )
|
|
{
|
|
DPF_ERR( "Invalid number of mip-map levels (0) specified" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
else
|
|
{
|
|
lpsd->dwWidth = lpsd->dwHeight = 1 << (lpsd->dwMipMapCount - 1);
|
|
lpsd->dwFlags |= (DDSD_HEIGHT | DDSD_WIDTH);
|
|
}
|
|
}
|
|
}
|
|
|
|
return DD_OK;
|
|
}
|
|
|
|
/*
|
|
* createSurface
|
|
*
|
|
* Create a surface, without linking it into the chain.
|
|
* We could potentially create multiple surfaces here, if we get a
|
|
* request to create a page flipped surface and/or attached alpha or
|
|
* z buffer surfaces
|
|
*/
|
|
static HRESULT createSurface( LPDDRAWI_DIRECTDRAW_LCL this_lcl,
|
|
LPDDSURFACEDESC lpDDSurfaceDesc,
|
|
CSINFO *pcsinfo,
|
|
BOOL emulation,
|
|
BOOL real_sysmem,
|
|
BOOL probe_driver,
|
|
LPDDRAWI_DIRECTDRAW_INT this_int )
|
|
{
|
|
|
|
LPDDRAWI_DIRECTDRAW_GBL this;
|
|
LPDDRAWI_DDRAWSURFACE_INT psurf_int;
|
|
LPDDRAWI_DDRAWSURFACE_LCL psurf_lcl;
|
|
LPDDRAWI_DDRAWSURFACE_GBL psurf;
|
|
DWORD caps;
|
|
int surf_size;
|
|
int surf_size_lcl;
|
|
int surf_size_lcl_more;
|
|
HRESULT ddrval;
|
|
int bbcnt;
|
|
int scnt;
|
|
int nsurf;
|
|
BOOL do_abuffer;
|
|
DWORD abuff_depth;
|
|
BOOL do_zbuffer;
|
|
DWORD zbuff_depth;
|
|
BOOL firstbbuff;
|
|
LPDDRAWI_DDRAWSURFACE_INT *slist_int;
|
|
LPDDRAWI_DDRAWSURFACE_LCL *slist_lcl;
|
|
LPDDRAWI_DDRAWSURFACE_GBL *slist;
|
|
int bbuffoff;
|
|
int zbuffoff;
|
|
DWORD rc;
|
|
DDPIXELFORMAT ddpf;
|
|
LPDDPIXELFORMAT pddpf;
|
|
BOOL is_primary_chain;
|
|
UINT bpp;
|
|
LONG vm_pitch;
|
|
BOOL is_flip;
|
|
BOOL is_diff;
|
|
BOOL is_mipmap;
|
|
DDHAL_CREATESURFACEDATA csd;
|
|
DDHAL_CANCREATESURFACEDATA ccsd;
|
|
DWORD sflags;
|
|
BOOL is_curr_diff;
|
|
BOOL understood_pf;
|
|
DWORD nsflags;
|
|
LPDDSCAPS pdrv_ddscaps;
|
|
LPDDHAL_CANCREATESURFACE ccsfn;
|
|
LPDDHAL_CREATESURFACE csfn;
|
|
LPDDHAL_CANCREATESURFACE ccshalfn;
|
|
LPDDHAL_CREATESURFACE cshalfn;
|
|
BOOL is_excl;
|
|
BOOL excl_exists;
|
|
DWORD sdflags;
|
|
#ifdef WIN95
|
|
DWORD ptr16;
|
|
#endif
|
|
DWORD pid;
|
|
LPDDRAWI_DDRAWSURFACE_GBL lpGlobalSurface;
|
|
DDSURFACEDESC sd;
|
|
BOOL existing_global;
|
|
#ifdef SHAREDZ
|
|
BOOL do_shared_z;
|
|
BOOL do_shared_back;
|
|
#endif
|
|
|
|
this = this_lcl->lpGbl;
|
|
|
|
/*
|
|
* validate surface description
|
|
*/
|
|
nsflags = 0;
|
|
sd = *lpDDSurfaceDesc;
|
|
lpDDSurfaceDesc = &sd;
|
|
|
|
/*
|
|
* If we have a mip-map then we potentially can fill in some
|
|
* blanks for the caller.
|
|
*/
|
|
if( lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_MIPMAP )
|
|
{
|
|
ddrval = initMipMapDim( lpDDSurfaceDesc );
|
|
if( ddrval != DD_OK )
|
|
return ddrval;
|
|
}
|
|
|
|
ddrval = checkSurfaceDesc( lpDDSurfaceDesc, this, &nsflags, emulation, real_sysmem, this_int );
|
|
if( ddrval != DD_OK )
|
|
{
|
|
return ddrval;
|
|
}
|
|
|
|
sdflags = lpDDSurfaceDesc->dwFlags;
|
|
pid = GetCurrentProcessId();
|
|
caps = lpDDSurfaceDesc->ddsCaps.dwCaps;
|
|
|
|
/*
|
|
* set up for emulation vs driver
|
|
*
|
|
* NOTE: There are different HAL entry points for creating execute buffers
|
|
* and conventional surfaces (to keep the driver writing simpler and because,
|
|
* potentially, there may be different semantics for creating execute buffers
|
|
* and conventional surfaces) so we need to set up the HAL call differently
|
|
* here.
|
|
*/
|
|
if( emulation )
|
|
{
|
|
pdrv_ddscaps = &this->ddHELCaps.ddsCaps;
|
|
if( caps & DDSCAPS_EXECUTEBUFFER )
|
|
{
|
|
ccsfn = this_lcl->lpDDCB->HELDDExeBuf.CanCreateExecuteBuffer;
|
|
csfn = this_lcl->lpDDCB->HELDDExeBuf.CreateExecuteBuffer;
|
|
}
|
|
else
|
|
{
|
|
ccsfn = this_lcl->lpDDCB->HELDD.CanCreateSurface;
|
|
csfn = this_lcl->lpDDCB->HELDD.CreateSurface;
|
|
}
|
|
ccshalfn = ccsfn;
|
|
cshalfn = csfn;
|
|
}
|
|
else
|
|
{
|
|
pdrv_ddscaps = &this->ddCaps.ddsCaps;
|
|
if( caps & DDSCAPS_EXECUTEBUFFER )
|
|
{
|
|
ccsfn = this_lcl->lpDDCB->HALDDExeBuf.CanCreateExecuteBuffer;
|
|
csfn = this_lcl->lpDDCB->HALDDExeBuf.CreateExecuteBuffer;
|
|
ccshalfn = this_lcl->lpDDCB->cbDDExeBufCallbacks.CanCreateExecuteBuffer;
|
|
cshalfn = this_lcl->lpDDCB->cbDDExeBufCallbacks.CreateExecuteBuffer;
|
|
}
|
|
else
|
|
{
|
|
ccsfn = this_lcl->lpDDCB->HALDD.CanCreateSurface;
|
|
csfn = this_lcl->lpDDCB->HALDD.CreateSurface;
|
|
ccshalfn = this_lcl->lpDDCB->cbDDCallbacks.CanCreateSurface;
|
|
cshalfn = this_lcl->lpDDCB->cbDDCallbacks.CreateSurface;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* get some frequently used fields
|
|
*/
|
|
if( sdflags & DDSD_BACKBUFFERCOUNT )
|
|
{
|
|
bbcnt = (int) lpDDSurfaceDesc->dwBackBufferCount;
|
|
if( bbcnt < 0 )
|
|
{
|
|
DPF( 1, "Invalid back buffer count %ld", bbcnt );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
else if( sdflags & DDSD_MIPMAPCOUNT )
|
|
{
|
|
/*
|
|
* Unlike the back-buffer count which can be 0
|
|
* the mip-map level count must be at least one
|
|
* if specified.
|
|
*/
|
|
bbcnt = (int) lpDDSurfaceDesc->dwMipMapCount - 1;
|
|
if( bbcnt < 0 )
|
|
{
|
|
DPF( 1, "Invalid mip-map count %ld", bbcnt + 1);
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bbcnt = 0;
|
|
}
|
|
|
|
/*
|
|
* make sure the driver supports these caps
|
|
*/
|
|
if( (caps & DDSCAPS_ALPHA) && !(pdrv_ddscaps->dwCaps & DDSCAPS_ALPHA) )
|
|
{
|
|
if( probe_driver )
|
|
DPF( 2, "Alpha not supported in hardware. Trying emulation..." );
|
|
else
|
|
DPF( 0, "Alpha not supported in %s", (emulation ? "emulation" : "hardware") );
|
|
return DDERR_NOALPHAHW;
|
|
}
|
|
#if 0
|
|
if( (caps & DDSCAPS_FLIP) && !(pdrv_ddscaps->dwCaps & DDSCAPS_FLIP))
|
|
{
|
|
if( probe_driver )
|
|
DPF( 2, "Flip not supported in hardware. Trying emulation..." );
|
|
else
|
|
DPF( 0, "Flip not supported in %s", (emulation ? "emulation" : "hardware") );
|
|
return DDERR_NOFLIPHW;
|
|
}
|
|
#endif
|
|
if((caps & DDSCAPS_ZBUFFER) && !(pdrv_ddscaps->dwCaps & DDSCAPS_ZBUFFER))
|
|
{
|
|
if( probe_driver )
|
|
DPF( 2, "Z Buffer not supported in hardware. Trying emulation..." );
|
|
else
|
|
DPF( 0, "Z Buffer not supported in %s", (emulation ? "emulation" : "hardware") );
|
|
return DDERR_NOZBUFFERHW;
|
|
}
|
|
if((caps & DDSCAPS_TEXTURE) && !(pdrv_ddscaps->dwCaps & DDSCAPS_TEXTURE))
|
|
{
|
|
if( probe_driver )
|
|
DPF( 2, "Textures not supported in hardware. Trying emulation..." );
|
|
else
|
|
DPF( 0, "Textures not supported in %s", (emulation ? "emulation" : "hardware") );
|
|
return DDERR_NOTEXTUREHW;
|
|
}
|
|
if((caps & DDSCAPS_MIPMAP) && !(pdrv_ddscaps->dwCaps & DDSCAPS_MIPMAP))
|
|
{
|
|
if( probe_driver )
|
|
DPF( 2, "Mip-maps not supported in hardware. Trying emulation..." );
|
|
else
|
|
DPF( 0, "Mip-maps not supported in %s", (emulation ? "emulation" : "hardware") );
|
|
return DDERR_NOMIPMAPHW;
|
|
}
|
|
if((caps & DDSCAPS_EXECUTEBUFFER) && !(pdrv_ddscaps->dwCaps & DDSCAPS_EXECUTEBUFFER))
|
|
{
|
|
if( probe_driver )
|
|
DPF( 2, "Execute buffers not supported in hardware. Trying emulation..." );
|
|
else
|
|
DPF( 0, "Execute buffers not supported in %s", (emulation ? "emulation" : "hardware") );
|
|
return DDERR_NOEXECUTEBUFFERHW;
|
|
}
|
|
#ifdef SHAREDZ
|
|
if((caps & DDSCAPS_SHAREDZBUFFER) && !(pdrv_ddscaps->dwCaps & DDSCAPS_SHAREDZBUFFER))
|
|
{
|
|
if( probe_driver )
|
|
DPF( 2, "Shared Z-buffer not supported in hardware. Trying emulation..." );
|
|
else
|
|
DPF( 0, "Shared Z-buffer not supported in %s", (emulation ? "emulation" : "hardware") );
|
|
return DDERR_NOSHAREDZBUFFERHW;
|
|
}
|
|
if((caps & DDSCAPS_SHAREDBACKBUFFER) && !(pdrv_ddscaps->dwCaps & DDSCAPS_SHAREDBACKBUFFER))
|
|
{
|
|
if( probe_driver )
|
|
DPF( 2, "Shared back-buffer not supported in hardware. Trying emulation..." );
|
|
else
|
|
DPF( 0, "Shared back-buffer not supported in %s", (emulation ? "emulation" : "hardware") );
|
|
return DDERR_NOSHAREDBACKBUFFERHW;
|
|
}
|
|
#endif
|
|
if(caps & DDSCAPS_OVERLAY)
|
|
{
|
|
if( emulation )
|
|
{
|
|
if( 0 == (this->ddHELCaps.dwCaps & DDCAPS_OVERLAY) )
|
|
{
|
|
DPF_ERR( "No overlay hardware emulation" );
|
|
return DDERR_NOOVERLAYHW;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( 0 == (this->ddCaps.dwCaps & DDCAPS_OVERLAY) )
|
|
{
|
|
if( probe_driver )
|
|
DPF( 2, "No overlay hardware. Trying emulation..." );
|
|
else
|
|
DPF_ERR( "No overlay hardware" );
|
|
return DDERR_NOOVERLAYHW;
|
|
}
|
|
}
|
|
}
|
|
#ifdef DEBUG
|
|
if( (caps & DDSCAPS_FLIP) && !emulation && GetProfileInt("DirectDraw","nohwflip",0))
|
|
{
|
|
DPF_ERR("pretending flip not supported in HW" );
|
|
return DDERR_NOFLIPHW;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* are we the process with exclusive mode?
|
|
*/
|
|
if( NULL != this->lpExclusiveOwner )
|
|
{
|
|
excl_exists = TRUE;
|
|
}
|
|
else
|
|
{
|
|
excl_exists = FALSE;
|
|
}
|
|
if( this->lpExclusiveOwner == this_lcl )
|
|
{
|
|
is_excl = TRUE;
|
|
if( !(this->dwFlags & DDRAWI_FULLSCREEN) )
|
|
{
|
|
if( (caps & DDSCAPS_FLIP) && (caps & DDSCAPS_PRIMARYSURFACE) )
|
|
{
|
|
DPF_ERR( "Must be in full-screen exclusive mode to create a flipping primary surface" );
|
|
return DDERR_NOEXCLUSIVEMODE;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
is_excl = FALSE;
|
|
if( (caps & DDSCAPS_FLIP) && (caps & DDSCAPS_PRIMARYSURFACE) )
|
|
{
|
|
DPF_ERR( "Must be in full-screen exclusive mode to create a flipping primary surface" );
|
|
return DDERR_NOEXCLUSIVEMODE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* see if we are creating the primary surface; if we are, see if
|
|
* we can allow its creation
|
|
*/
|
|
if( (caps & DDSCAPS_PRIMARYSURFACE) )
|
|
{
|
|
LPDDRAWI_DDRAWSURFACE_INT pprim_int;
|
|
|
|
pprim_int = this_lcl->lpPrimary;
|
|
if( pprim_int )
|
|
{
|
|
DPF_ERR( "Can't create primary, already created by this process" );
|
|
return DDERR_PRIMARYSURFACEALREADYEXISTS;
|
|
}
|
|
|
|
#if 0
|
|
#pragma message( REMIND( "Not allowing flippable surfaces > 640x480 in Rev1" ))
|
|
if( caps & DDSCAPS_COMPLEX )
|
|
{
|
|
if( this->lpModeInfo[ this->dwModeIndex ].dwWidth > 640 )
|
|
{
|
|
DPF( 1, "Can't create flippable surfaces larger than 640x480 in version 1" );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if( (excl_exists) && (is_excl) )
|
|
{
|
|
/*
|
|
* we are the exclusive mode process
|
|
* invalidate everyone else's primary surfaces and create our own
|
|
*/
|
|
#ifdef WINNT
|
|
InvalidateAllSurfaces( this );
|
|
#else
|
|
InvalidateAllPrimarySurfaces( this );
|
|
#endif
|
|
}
|
|
else if( excl_exists )
|
|
{
|
|
/*
|
|
* we are not the exclusive mode process but someone else is
|
|
*/
|
|
DPF_ERR( "Can't create primary, exclusive mode not owned" );
|
|
return DDERR_NOEXCLUSIVEMODE;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* no one has exclusive mode
|
|
*/
|
|
if( !MatchPrimary( this, lpDDSurfaceDesc ) )
|
|
{
|
|
DPF_ERR( "Can't create primary, incompatible with current primary" );
|
|
return DDERR_INCOMPATIBLEPRIMARY;
|
|
}
|
|
/*
|
|
* otherwise, it is possible to create a primary surface
|
|
*/
|
|
}
|
|
}
|
|
|
|
#ifdef SHAREDZ
|
|
if( caps & DDSCAPS_SHAREDZBUFFER )
|
|
{
|
|
if( this_lcl->lpSharedZ != NULL )
|
|
{
|
|
DPF_ERR( "Can't create shared Z, already created by this process" );
|
|
return DDERR_SHAREDZBUFFERALREADYEXISTS;
|
|
}
|
|
if( !MatchSharedZBuffer( this, lpDDSurfaceDesc ) )
|
|
{
|
|
DPF_ERR( "Can't create shared Z buffer, incompatible with existing Z buffer" );
|
|
return DDERR_INCOMPATIBLESHAREDZBUFFER;
|
|
}
|
|
}
|
|
if( caps & DDSCAPS_SHAREDBACKBUFFER )
|
|
{
|
|
if( this_lcl->lpSharedBack != NULL )
|
|
{
|
|
DPF_ERR( "Can't create shared back-buffer, already created by this process" );
|
|
return DDERR_SHAREDBACKBUFFERALREADYEXISTS;
|
|
}
|
|
if( !MatchSharedBackBuffer( this, lpDDSurfaceDesc ) )
|
|
{
|
|
DPF_ERR( "Can't create shared back buffer, incompatible with existing back buffer" );
|
|
return DDERR_INCOMPATIBLESHAREDBACKBUFFER;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* make sure the driver wants this to happen...
|
|
*/
|
|
if( sdflags & DDSD_PIXELFORMAT )
|
|
{
|
|
is_diff = IsDifferentPixelFormat( &this->vmiData.ddpfDisplay, &lpDDSurfaceDesc->ddpfPixelFormat );
|
|
}
|
|
else
|
|
{
|
|
is_diff = FALSE;
|
|
}
|
|
DPF( 8, "is_diff = %d", is_diff );
|
|
rc = DDHAL_DRIVER_NOTHANDLED;
|
|
|
|
if( ccshalfn != NULL )
|
|
{
|
|
DPF(9,"Calling HAL for create surface, emulation == %d",emulation);
|
|
ccsd.CanCreateSurface = ccshalfn;
|
|
ccsd.lpDD = this;
|
|
ccsd.lpDDSurfaceDesc = lpDDSurfaceDesc;
|
|
ccsd.bIsDifferentPixelFormat = is_diff;
|
|
/*
|
|
* !!! NOTE: Currently we don't support 16-bit versions of the HAL
|
|
* execute buffer members. If this is so do we need to use DOHALCALL?
|
|
*/
|
|
if( caps & DDSCAPS_EXECUTEBUFFER )
|
|
{
|
|
DOHALCALL( CanCreateExecuteBuffer, ccsfn, ccsd, rc, emulation );
|
|
}
|
|
else
|
|
{
|
|
DOHALCALL( CanCreateSurface, ccsfn, ccsd, rc, emulation );
|
|
}
|
|
if( rc == DDHAL_DRIVER_HANDLED )
|
|
{
|
|
if( ccsd.ddRVal != DD_OK )
|
|
{
|
|
DPF_ERR( "Driver says surface can't be created" );
|
|
return ccsd.ddRVal;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* if the driver didn't handle it, then fail any requests to create a
|
|
* surface that differs in format from the primary surface, except for
|
|
* z buffer and alpha
|
|
*/
|
|
if( rc == DDHAL_DRIVER_NOTHANDLED )
|
|
{
|
|
if( is_diff && !(caps & (DDSCAPS_ZBUFFER|DDSCAPS_ALPHA)) )
|
|
{
|
|
return DDERR_INVALIDPIXELFORMAT;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* is this a primary surface chain?
|
|
*/
|
|
if( caps & DDSCAPS_PRIMARYSURFACE )
|
|
{
|
|
is_primary_chain = TRUE;
|
|
}
|
|
else
|
|
{
|
|
is_primary_chain = FALSE;
|
|
}
|
|
|
|
#ifdef SHAREDZ
|
|
do_shared_z = FALSE;
|
|
do_shared_back = FALSE;
|
|
#endif
|
|
|
|
/*
|
|
* see if we are looking for a z-buffer with our surface
|
|
*/
|
|
if( (caps & DDSCAPS_ZBUFFER) )
|
|
{
|
|
do_zbuffer = TRUE;
|
|
#ifdef SHAREDZ
|
|
if( caps & DDSCAPS_SHAREDZBUFFER )
|
|
do_shared_z = TRUE;
|
|
#endif
|
|
zbuff_depth = lpDDSurfaceDesc->dwZBufferBitDepth;
|
|
if( (caps & DDSCAPS_COMPLEX) )
|
|
{
|
|
caps &= ~DDSCAPS_ZBUFFER;
|
|
#ifdef SHAREDZ
|
|
caps &= ~DDSCAPS_SHAREDZBUFFER;
|
|
#endif
|
|
}
|
|
}
|
|
else
|
|
{
|
|
do_zbuffer = FALSE;
|
|
zbuff_depth = 0;
|
|
}
|
|
|
|
/*
|
|
* see if we are looking for an alpha buffer with our surface
|
|
*/
|
|
if( (caps & DDSCAPS_ALPHA) )
|
|
{
|
|
do_abuffer = TRUE;
|
|
abuff_depth = lpDDSurfaceDesc->dwAlphaBitDepth;
|
|
if( (caps & DDSCAPS_COMPLEX) )
|
|
{
|
|
caps &= ~DDSCAPS_ALPHA;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
do_abuffer = FALSE;
|
|
abuff_depth = 0;
|
|
}
|
|
|
|
#ifdef SHAREDZ
|
|
/*
|
|
* See if we looking for a shared back-buffer with our surface
|
|
*/
|
|
if( caps & DDSCAPS_SHAREDBACKBUFFER )
|
|
do_shared_back = TRUE;
|
|
#endif
|
|
|
|
/*
|
|
* number of surfaces we need
|
|
*/
|
|
nsurf = 1 + bbcnt;
|
|
if( do_zbuffer && (caps & DDSCAPS_COMPLEX) )
|
|
{
|
|
nsurf++;
|
|
DPF( 8, "adding one for zbuffer" );
|
|
}
|
|
if( do_abuffer && (caps & DDSCAPS_COMPLEX) )
|
|
{
|
|
nsurf++;
|
|
DPF( 8, "adding one for alpha" );
|
|
}
|
|
DPF( 8, "bbcnt=%d,nsurf=%d", bbcnt, nsurf );
|
|
DPF( 8, "do_abuffer=%d,do_zbuffer=%d", do_abuffer, do_zbuffer );
|
|
|
|
/*
|
|
* Compute offsets into the surface list of the various distinguished
|
|
* surface types.
|
|
|
|
/*
|
|
* are we creating a non-flipping complex surface?
|
|
*/
|
|
if( nsurf > 1 )
|
|
{
|
|
if( (caps & DDSCAPS_COMPLEX) && !(caps & DDSCAPS_FLIP) )
|
|
{
|
|
bbuffoff = 0;
|
|
}
|
|
else
|
|
{
|
|
bbuffoff = 1;
|
|
}
|
|
if( do_zbuffer )
|
|
{
|
|
if( do_abuffer )
|
|
zbuffoff = (nsurf - 2);
|
|
else
|
|
zbuffoff = (nsurf - 1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bbuffoff = 0;
|
|
if( do_zbuffer )
|
|
zbuffoff = 0;
|
|
}
|
|
|
|
/*
|
|
* is this a flipping surface?
|
|
*/
|
|
if( caps & DDSCAPS_FLIP )
|
|
{
|
|
is_flip = TRUE;
|
|
}
|
|
else
|
|
{
|
|
is_flip = FALSE;
|
|
}
|
|
|
|
/*
|
|
* Are we creating a mip-map chain?
|
|
*/
|
|
if( ( ( caps & ( DDSCAPS_COMPLEX | DDSCAPS_MIPMAP ) ) ==
|
|
( DDSCAPS_COMPLEX | DDSCAPS_MIPMAP ) ) &&
|
|
( sdflags & DDSD_MIPMAPCOUNT ) )
|
|
{
|
|
is_mipmap = TRUE;
|
|
}
|
|
else
|
|
{
|
|
is_mipmap = FALSE;
|
|
}
|
|
|
|
/*
|
|
* set up the list array
|
|
*/
|
|
if( nsurf <= pcsinfo->listsize )
|
|
{
|
|
slist_int = pcsinfo->slist_int;
|
|
slist_lcl = pcsinfo->slist_lcl;
|
|
slist = pcsinfo->slist;
|
|
}
|
|
else
|
|
{
|
|
slist_int = MemAlloc( nsurf * sizeof( LPDDRAWI_DDRAWSURFACE_INT ) );
|
|
if( NULL == slist_int )
|
|
{
|
|
return DDERR_OUTOFMEMORY;
|
|
}
|
|
slist_lcl = MemAlloc( nsurf * sizeof( LPDDRAWI_DDRAWSURFACE_LCL ) );
|
|
if( slist_lcl == NULL )
|
|
{
|
|
return DDERR_OUTOFMEMORY;
|
|
}
|
|
slist = MemAlloc( nsurf * sizeof( LPDDRAWI_DDRAWSURFACE_GBL ) );
|
|
if( slist == NULL )
|
|
{
|
|
return DDERR_OUTOFMEMORY;
|
|
}
|
|
pcsinfo->slist_int = slist_int;
|
|
pcsinfo->slist_lcl = slist_lcl;
|
|
pcsinfo->slist = slist;
|
|
pcsinfo->listsize = nsurf;
|
|
}
|
|
pcsinfo->listcnt = nsurf;
|
|
|
|
/*
|
|
* Create all needed surface structures.
|
|
*
|
|
* The callback fns, caps, and other misc things are filled in.
|
|
* Memory for the surface is allocated later.
|
|
*/
|
|
pcsinfo->needlink = TRUE;
|
|
firstbbuff = TRUE;
|
|
if( is_primary_chain )
|
|
{
|
|
nsflags |= DDRAWISURF_PARTOFPRIMARYCHAIN;
|
|
if( this->dwFlags & DDRAWI_MODEX )
|
|
{
|
|
caps |= DDSCAPS_MODEX;
|
|
}
|
|
}
|
|
for( scnt=0;scnt<nsurf;scnt++ )
|
|
{
|
|
DPF( 8, "*** Structs Surface %d ***", scnt );
|
|
|
|
is_curr_diff = is_diff;
|
|
understood_pf = FALSE;
|
|
sflags = nsflags;
|
|
pddpf = NULL;
|
|
|
|
/*
|
|
* get the base pixel format
|
|
*/
|
|
if( is_primary_chain || !(sdflags & DDSD_PIXELFORMAT) )
|
|
{
|
|
#ifdef USE_ALPHA
|
|
if( (caps & DDSCAPS_ALPHA) && !(caps & DDSCAPS_COMPLEX) )
|
|
{
|
|
memset( &ddpf, 0, sizeof( ddpf ) );
|
|
ddpf.dwSize = sizeof( ddpf );
|
|
pddpf = &ddpf;
|
|
pddpf->dwAlphaBitDepth = lpDDSurfaceDesc->dwAlphaBitDepth;
|
|
pddpf->dwFlags = DDPF_ALPHAPIXELS;
|
|
is_curr_diff = TRUE;
|
|
understood_pf = TRUE;
|
|
}
|
|
else
|
|
#endif
|
|
if( (caps & DDSCAPS_ZBUFFER) && !(caps & DDSCAPS_COMPLEX) )
|
|
{
|
|
memset( &ddpf, 0, sizeof( ddpf ) );
|
|
ddpf.dwSize = sizeof( ddpf );
|
|
pddpf = &ddpf;
|
|
pddpf->dwZBufferBitDepth = lpDDSurfaceDesc->dwZBufferBitDepth;
|
|
pddpf->dwFlags = DDPF_ZBUFFER;
|
|
is_curr_diff = TRUE;
|
|
understood_pf = TRUE;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* If this surface has been explicitly requested in system
|
|
* memory then we will force the allocation of a pixel
|
|
* format. Why? because explicit system memory surfaces
|
|
* don't get lost when a mode switches. This is a problem
|
|
* if the surface has no pixel format as we will pick up
|
|
* the pixel format of the current mode instead. Trouble
|
|
* is that the surface was not created in that mode so
|
|
* we end up with a bad bit depth - very dangerous. Heap
|
|
* corruption follows.
|
|
*
|
|
* This is a temporary fix only. We will substitute a more
|
|
* memory efficient fix for DX 3. But for now this will
|
|
* have to do.
|
|
*/
|
|
if( real_sysmem && !( caps & DDSCAPS_EXECUTEBUFFER ) )
|
|
{
|
|
DPF( 3, "Forcing pixel format for explicit system memory surface" );
|
|
ddpf = this->vmiData.ddpfDisplay;
|
|
pddpf = &ddpf;
|
|
is_curr_diff = TRUE;
|
|
}
|
|
|
|
/*
|
|
* If no pixel format is specified then we use the pixel format
|
|
* of the primary. So if we understand the pixel format of the
|
|
* primary then we understand the pixel format of this surface.
|
|
* With one notable exception. We always understand the pixel
|
|
* format of an execute buffer - it hasn't got one.
|
|
*/
|
|
if( ( this->vmiData.ddpfDisplay.dwFlags & UNDERSTOOD_PF ) ||
|
|
( caps & DDSCAPS_EXECUTEBUFFER ) )
|
|
{
|
|
understood_pf = TRUE;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( is_curr_diff )
|
|
{
|
|
pddpf = &ddpf;
|
|
ddpf = lpDDSurfaceDesc->ddpfPixelFormat;
|
|
if( pddpf->dwFlags & UNDERSTOOD_PF )
|
|
{
|
|
understood_pf = TRUE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( this->vmiData.ddpfDisplay.dwFlags & UNDERSTOOD_PF )
|
|
{
|
|
understood_pf = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* set up caps for each surface
|
|
*/
|
|
if( scnt > 0 )
|
|
{
|
|
/*
|
|
* mark implicitly created surfaces as such
|
|
*/
|
|
sflags |= DDRAWISURF_IMPLICITCREATE;
|
|
|
|
/*
|
|
* eliminated unwanted caps.
|
|
* NOTE: If we are creating a flipping chain for a mip-mapped
|
|
* texture then we don't propagate the MIPMAP cap to the back
|
|
* buffers, only the front buffer is tagged as a mip-map.
|
|
*/
|
|
caps &= ~(DDSCAPS_PRIMARYSURFACE |
|
|
DDSCAPS_FRONTBUFFER | DDSCAPS_VISIBLE |
|
|
DDSCAPS_ALPHA | DDSCAPS_ZBUFFER |
|
|
DDSCAPS_BACKBUFFER);
|
|
#ifdef SHAREDZ
|
|
caps &= ~(DDSCAPS_SHAREDZBUFFER | DDSCAPS_SHAREDBACKBUFFER);
|
|
#endif
|
|
if( is_flip )
|
|
caps &= ~DDSCAPS_MIPMAP;
|
|
#ifdef USE_ALPHA
|
|
|
|
/*
|
|
* caps for an alpha buffer
|
|
*/
|
|
if( (do_abuffer && do_zbuffer && (scnt == nsurf-1) ) ||
|
|
(do_abuffer && (scnt == nsurf-1)) )
|
|
{
|
|
DPF( 8, "TRY ALPHA" );
|
|
caps &= ~(DDSCAPS_TEXTURE | DDSCAPS_FLIP | DDSCAPS_OVERLAY | DDSCAPS_OFFSCREENPLAIN);
|
|
caps |= DDSCAPS_ALPHA;
|
|
memset( &ddpf, 0, sizeof( ddpf ) );
|
|
ddpf.dwSize = sizeof( ddpf );
|
|
pddpf = &ddpf;
|
|
pddpf->dwAlphaBitDepth = lpDDSurfaceDesc->dwAlphaBitDepth;
|
|
pddpf->dwFlags = DDPF_ALPHA;
|
|
understood_pf = TRUE;
|
|
is_curr_diff = TRUE;
|
|
/*
|
|
* caps for a z buffer
|
|
*/
|
|
}
|
|
else
|
|
#endif
|
|
if( do_zbuffer && ( scnt == zbuffoff ) )
|
|
{
|
|
caps &= ~(DDSCAPS_TEXTURE | DDSCAPS_FLIP | DDSCAPS_OVERLAY | DDSCAPS_OFFSCREENPLAIN | DDSCAPS_3DDEVICE);
|
|
caps |= DDSCAPS_ZBUFFER;
|
|
#ifdef SHAREDZ
|
|
if( do_shared_z )
|
|
caps |= DDSCAPS_SHAREDZBUFFER;
|
|
#endif
|
|
memset( &ddpf, 0, sizeof( ddpf ) );
|
|
ddpf.dwSize = sizeof( ddpf );
|
|
pddpf = &ddpf;
|
|
pddpf->dwZBufferBitDepth = lpDDSurfaceDesc->dwZBufferBitDepth;
|
|
pddpf->dwFlags = DDPF_ZBUFFER;
|
|
understood_pf = TRUE;
|
|
is_curr_diff = TRUE;
|
|
/*
|
|
* set up for offscreen surfaces
|
|
*/
|
|
}
|
|
else
|
|
{
|
|
if( !is_mipmap )
|
|
{
|
|
/*
|
|
* Flip and back buffer don't apply to mip-map chains.
|
|
*/
|
|
caps |= DDSCAPS_FLIP;
|
|
if( firstbbuff )
|
|
{
|
|
caps |= DDSCAPS_BACKBUFFER;
|
|
sflags |= DDRAWISURF_BACKBUFFER;
|
|
#ifdef SHAREDZ
|
|
if( do_shared_back )
|
|
caps |= DDSCAPS_SHAREDBACKBUFFER;
|
|
#endif
|
|
firstbbuff = FALSE;
|
|
}
|
|
}
|
|
}
|
|
/*
|
|
* the first surface...
|
|
*/
|
|
}
|
|
else
|
|
{
|
|
if( caps & DDSCAPS_PRIMARYSURFACE )
|
|
{
|
|
caps |= DDSCAPS_VISIBLE;
|
|
}
|
|
if( caps & DDSCAPS_FLIP )
|
|
{
|
|
caps |= DDSCAPS_FRONTBUFFER;
|
|
sflags |= DDRAWISURF_FRONTBUFFER;
|
|
}
|
|
if( nsurf > 1 )
|
|
{
|
|
sflags |= DDRAWISURF_IMPLICITROOT;
|
|
}
|
|
if( caps & DDSCAPS_BACKBUFFER )
|
|
{
|
|
sflags |= DDRAWISURF_BACKBUFFER;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* if it isn't a pixel format we grok, then it is different...
|
|
*/
|
|
if( !understood_pf )
|
|
{
|
|
is_curr_diff = TRUE;
|
|
}
|
|
|
|
/*
|
|
* pick size of structure we need to allocate...
|
|
*/
|
|
if( (caps & DDSCAPS_OVERLAY) ||
|
|
((caps & DDSCAPS_PRIMARYSURFACE) &&
|
|
((this->ddCaps.dwCaps & DDCAPS_OVERLAY) ||
|
|
(this->ddHELCaps.dwCaps & DDCAPS_OVERLAY))) )
|
|
{
|
|
sflags |= DDRAWISURF_HASOVERLAYDATA;
|
|
}
|
|
/*
|
|
* Execute buffers should NEVER have pixel formats.
|
|
*/
|
|
if( is_curr_diff && !( caps & DDSCAPS_EXECUTEBUFFER ) )
|
|
{
|
|
sflags |= DDRAWISURF_HASPIXELFORMAT;
|
|
}
|
|
|
|
/*
|
|
* allocate the surface struct, allowing for overlay and pixel
|
|
* format data
|
|
*
|
|
* NOTE: This single allocation can allocate space for local surface
|
|
* structure (DDRAWI_DDRAWSURFACE_LCL), the additional local surface
|
|
* structure (DDRAWI_DDRAWSURFACE_MORE) and the global surface structure
|
|
* (DDRAWI_DDRAWSURFACE_GBL). As both the local and global objects
|
|
* can be variable sized this can get pretty complex. The layout of the
|
|
* various objects in the allocation is as follows:
|
|
*
|
|
* +-----------------+---------------+---------------+
|
|
* | SURFACE_LCL | SURFACE_MORE | SURFACE_GBL |
|
|
* | (variable) | | (variable) |
|
|
* +-----------------+---------------+---------------+
|
|
* <- surf_size_lcl ->
|
|
* <- surf_size_lcl_more ------------>
|
|
* <- surf_size ------------------------------------->
|
|
*/
|
|
if( sflags & DDRAWISURF_HASOVERLAYDATA )
|
|
{
|
|
surf_size_lcl = sizeof( DDRAWI_DDRAWSURFACE_LCL );
|
|
DPF( 8, "OVERLAY DATA SPACE" );
|
|
}
|
|
else
|
|
{
|
|
surf_size_lcl = offsetof( DDRAWI_DDRAWSURFACE_LCL, ddckCKSrcOverlay );
|
|
}
|
|
|
|
surf_size_lcl_more = surf_size_lcl + sizeof( DDRAWI_DDRAWSURFACE_MORE );
|
|
|
|
if( ( sflags & DDRAWISURF_HASPIXELFORMAT ) || ( caps & DDSCAPS_PRIMARYSURFACE ) )
|
|
{
|
|
DPF( 8, "PIXEL FORMAT SPACE" );
|
|
surf_size = surf_size_lcl_more + sizeof( DDRAWI_DDRAWSURFACE_GBL );
|
|
}
|
|
else
|
|
{
|
|
surf_size = surf_size_lcl_more +
|
|
offsetof( DDRAWI_DDRAWSURFACE_GBL, ddpfSurface );
|
|
}
|
|
|
|
DPF( 8, "Allocating struct (%ld)", surf_size );
|
|
existing_global = FALSE;
|
|
if( caps & DDSCAPS_PRIMARYSURFACE )
|
|
{
|
|
// attempt to find existing global primary surface
|
|
lpGlobalSurface = FindGlobalPrimary( this );
|
|
}
|
|
#ifdef SHAREDZ
|
|
else if( caps & DDSCAPS_SHAREDZBUFFER )
|
|
{
|
|
DPF( 4, "Searching for shared Z-buffer" );
|
|
lpGlobalSurface = FindGlobalZBuffer( this );
|
|
}
|
|
else if( caps & DDSCAPS_SHAREDBACKBUFFER )
|
|
{
|
|
DPF( 4, "Searching for shared back-buffer" );
|
|
lpGlobalSurface = FindGlobalBackBuffer( this );
|
|
}
|
|
#endif
|
|
else
|
|
{
|
|
lpGlobalSurface = NULL;
|
|
}
|
|
if( lpGlobalSurface )
|
|
{
|
|
DPF( 4, "Using shared global surface" );
|
|
#ifdef WIN95
|
|
psurf_lcl = (LPDDRAWI_DDRAWSURFACE_LCL) MemAlloc16( surf_size_lcl_more, &ptr16 );
|
|
#else
|
|
psurf_lcl = (LPDDRAWI_DDRAWSURFACE_LCL) MemAlloc( surf_size_lcl_more );
|
|
#endif
|
|
if( psurf_lcl != NULL )
|
|
{
|
|
psurf_lcl->lpGbl = lpGlobalSurface;
|
|
}
|
|
existing_global = TRUE;
|
|
}
|
|
else
|
|
{
|
|
#ifdef WIN95
|
|
psurf_lcl = (LPDDRAWI_DDRAWSURFACE_LCL) MemAlloc16( surf_size, &ptr16 );
|
|
#else
|
|
psurf_lcl = (LPDDRAWI_DDRAWSURFACE_LCL) MemAlloc( surf_size );
|
|
#endif
|
|
if( psurf_lcl != NULL )
|
|
{
|
|
psurf_lcl->lpGbl = (LPVOID) (((LPSTR) psurf_lcl) + surf_size_lcl_more );
|
|
}
|
|
}
|
|
if( psurf_lcl == NULL )
|
|
{
|
|
freeSurfaceList( slist_int, scnt );
|
|
return DDERR_OUTOFMEMORY;
|
|
}
|
|
psurf = psurf_lcl->lpGbl;
|
|
|
|
/*
|
|
* allocate surface interface
|
|
*/
|
|
psurf_int = (LPDDRAWI_DDRAWSURFACE_INT) MemAlloc( sizeof( DDRAWI_DDRAWSURFACE_INT ));
|
|
if( NULL == psurf_int )
|
|
{
|
|
freeSurfaceList( slist_int, scnt );
|
|
MemFree( psurf_lcl );
|
|
return DDERR_OUTOFMEMORY;
|
|
}
|
|
|
|
/*
|
|
* fill surface specific stuff
|
|
*/
|
|
psurf_int->lpLcl = psurf_lcl;
|
|
psurf_int->lpVtbl = &ddSurfaceCallbacks;
|
|
|
|
if( existing_global )
|
|
{
|
|
psurf_lcl->dwLocalRefCnt = 0;
|
|
}
|
|
else
|
|
{
|
|
psurf_lcl->dwLocalRefCnt = OBJECT_ISROOT;
|
|
}
|
|
psurf_lcl->dwProcessId = pid;
|
|
psurf_lcl->dwModeCreatedIn = this->dwModeIndex;
|
|
|
|
slist_int[scnt] = psurf_int;
|
|
slist_lcl[scnt] = psurf_lcl;
|
|
slist[scnt] = psurf;
|
|
|
|
/*
|
|
* fill in misc stuff
|
|
*/
|
|
psurf->lpDD = this;
|
|
psurf_lcl->dwFlags = sflags;
|
|
|
|
/*
|
|
* initialize extended fields if necessary
|
|
*/
|
|
if( sflags & DDRAWISURF_HASOVERLAYDATA )
|
|
{
|
|
psurf_lcl->lpSurfaceOverlaying = NULL;
|
|
}
|
|
|
|
/*
|
|
* Initialize the additional local surface data structure
|
|
*/
|
|
psurf_lcl->lpSurfMore = (LPDDRAWI_DDRAWSURFACE_MORE) (((LPSTR) psurf_lcl) + surf_size_lcl );
|
|
psurf_lcl->lpSurfMore->dwSize = sizeof( DDRAWI_DDRAWSURFACE_MORE );
|
|
psurf_lcl->lpSurfMore->lpIUnknowns = NULL;
|
|
psurf_lcl->lpSurfMore->lpDD_lcl = this_lcl;
|
|
psurf_lcl->lpSurfMore->lpDD_int = this_int;
|
|
psurf_lcl->lpSurfMore->dwMipMapCount = 0UL;
|
|
|
|
/*
|
|
* fill in the current caps
|
|
*/
|
|
psurf_lcl->ddsCaps.dwCaps = caps;
|
|
|
|
/*
|
|
* set up format info
|
|
*
|
|
* are we creating a primary surface?
|
|
*/
|
|
if( caps & DDSCAPS_PRIMARYSURFACE )
|
|
{
|
|
/*
|
|
* NOTE: Previously we set ISGDISURFACE for all primary surfaces
|
|
* We now set it only for primarys hanging off display drivers.
|
|
* This is to better support drivers which are not GDI display
|
|
* drivers.
|
|
*/
|
|
if( this->dwFlags & DDRAWI_DISPLAYDRV )
|
|
psurf->dwGlobalFlags |= DDRAWISURFGBL_ISGDISURFACE;
|
|
psurf->wHeight = (WORD) this->vmiData.dwDisplayHeight;
|
|
psurf->wWidth = (WORD) this->vmiData.dwDisplayWidth;
|
|
psurf->lPitch = this->vmiData.lDisplayPitch;
|
|
DPF(6,"Primary Surface get's display size:%dx%d",psurf->wWidth,psurf->wHeight);
|
|
if( !understood_pf && (pddpf == NULL) )
|
|
{
|
|
ddpf = this->vmiData.ddpfDisplay;
|
|
pddpf = &ddpf;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* process a plain ol' non-primary surface
|
|
*/
|
|
|
|
/*
|
|
* set up surface attributes
|
|
*/
|
|
if( scnt > 0 )
|
|
{
|
|
/*
|
|
* NOTE: Don't have to worry about execute buffers here as
|
|
* execute buffers can never be created as part of a complex
|
|
* surface and hence scnt will never be > 0 for an execute
|
|
* buffer.
|
|
*/
|
|
DDASSERT( !( caps & DDSCAPS_EXECUTEBUFFER ) );
|
|
|
|
/*
|
|
* If we are doing a mip-map chain then the width and height
|
|
* of each surface is half that of the preceeding surface.
|
|
*/
|
|
if( is_mipmap )
|
|
{
|
|
psurf->wWidth = slist[scnt - 1]->wWidth / 2;
|
|
psurf->wHeight = slist[scnt - 1]->wHeight / 2;
|
|
}
|
|
else
|
|
{
|
|
psurf->wWidth = slist[0]->wWidth;
|
|
psurf->wHeight = slist[0]->wHeight;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( caps & DDSCAPS_EXECUTEBUFFER )
|
|
{
|
|
/*
|
|
* NOTE: Execute buffers are a special case. They are
|
|
* linear and not rectangular. We therefore store zero
|
|
* for width and height, they have no pitch and store
|
|
* their linear size in dwLinerSize (in union with lPitch).
|
|
* The linear size is given by the width of the surface
|
|
* description (the width MUST be specified - the height
|
|
* MUST NOT be).
|
|
*/
|
|
DDASSERT( lpDDSurfaceDesc->dwFlags & DDSD_WIDTH );
|
|
DDASSERT( !( lpDDSurfaceDesc->dwFlags & DDSD_HEIGHT ) );
|
|
|
|
psurf->wWidth = 0;
|
|
psurf->wHeight = 0;
|
|
psurf->dwLinearSize = lpDDSurfaceDesc->dwWidth;
|
|
}
|
|
else
|
|
{
|
|
if( sdflags & DDSD_HEIGHT )
|
|
{
|
|
psurf->wHeight = (WORD) lpDDSurfaceDesc->dwHeight;
|
|
}
|
|
else
|
|
{
|
|
psurf->wHeight = (WORD) this->vmiData.dwDisplayHeight;
|
|
}
|
|
if( sdflags & DDSD_WIDTH )
|
|
{
|
|
psurf->wWidth = (WORD) lpDDSurfaceDesc->dwWidth;
|
|
}
|
|
else
|
|
{
|
|
psurf->wWidth = (WORD) this->vmiData.dwDisplayWidth;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* set pixel format and pitch for surfaces we understand
|
|
*/
|
|
if( caps & DDSCAPS_EXECUTEBUFFER )
|
|
{
|
|
/*
|
|
* Execute buffers need to be handled differently from
|
|
* other surfaces. They never have pixel formats and
|
|
* BPP is a bit meaningless. You might wonder why we call
|
|
* ComputePitch at all for execute buffers. Well, they
|
|
* may also have alignment requirements and so it we
|
|
* need to give ComputePitch a chance to enlarge the
|
|
* size of the execute buffer.
|
|
*
|
|
* NOTE: For the purposes of this calculation. Execute
|
|
* buffers are 8-bits per pixel - silly I know.
|
|
*/
|
|
psurf->dwLinearSize = ComputePitch( this, caps, psurf->dwLinearSize, 8U );
|
|
if( psurf->dwLinearSize == 0UL )
|
|
{
|
|
DPF_ERR( "Computed linear size of execute buffer as zero" );
|
|
MemFree( psurf_lcl );
|
|
MemFree( psurf_int ); //oops, someone forgot these (jeffno 960118)
|
|
freeSurfaceList( slist_int, scnt );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( understood_pf )
|
|
{
|
|
LPDDPIXELFORMAT pcurr_ddpf;
|
|
|
|
pcurr_ddpf = NULL;
|
|
if( is_curr_diff )
|
|
{
|
|
if( (caps & DDSCAPS_FLIP) && scnt > 0 )
|
|
{
|
|
GET_PIXEL_FORMAT( slist_lcl[0], slist[0], pcurr_ddpf );
|
|
pddpf->dwRGBBitCount = pcurr_ddpf->dwRGBBitCount;
|
|
bpp = pddpf->dwRGBBitCount;
|
|
}
|
|
else
|
|
{
|
|
bpp = (UINT) pddpf->dwRGBBitCount;
|
|
if( bpp == 0 )
|
|
{
|
|
bpp = (UINT) this->vmiData.ddpfDisplay.dwRGBBitCount;
|
|
pddpf->dwRGBBitCount = (DWORD) bpp;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bpp = (UINT) this->vmiData.ddpfDisplay.dwRGBBitCount;
|
|
}
|
|
vm_pitch = (LONG) ComputePitch( this, caps,
|
|
(DWORD) psurf->wWidth, bpp );
|
|
if( vm_pitch == 0 )
|
|
{
|
|
DPF_ERR( "Computed pitch of 0" );
|
|
MemFree( psurf_lcl );
|
|
MemFree( psurf_int ); //oops, someone forgot these (jeffno 960118)
|
|
freeSurfaceList( slist_int, scnt );
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
vm_pitch = -1;
|
|
}
|
|
psurf->lPitch = vm_pitch;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* first surface in flippable chain gets a back buffer count
|
|
*/
|
|
if( (scnt == 0) && (caps & DDSCAPS_FLIP) )
|
|
{
|
|
psurf_lcl->dwBackBufferCount = lpDDSurfaceDesc->dwBackBufferCount;
|
|
}
|
|
else
|
|
{
|
|
psurf_lcl->dwBackBufferCount = 0;
|
|
}
|
|
|
|
/*
|
|
* Each surface in the mip-map chain gets the number of levels
|
|
* in the map (including this level).
|
|
*/
|
|
if( caps & DDSCAPS_MIPMAP )
|
|
{
|
|
if( is_mipmap )
|
|
{
|
|
/*
|
|
* Part of complex mip-map chain.
|
|
*/
|
|
DPF( 5, "Assigning mip-map level %d to mip-map %d", nsurf-scnt, scnt );
|
|
psurf_lcl->lpSurfMore->dwMipMapCount = (nsurf - scnt);
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Single level map - not part of a chain.
|
|
*/
|
|
DPF( 5, "Assign mip-map level of 1 to single level mip-map" );
|
|
psurf_lcl->lpSurfMore->dwMipMapCount = 1UL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* assign pixel format...
|
|
*/
|
|
if( is_curr_diff )
|
|
{
|
|
/*
|
|
* Execute buffers should NEVER have a pixel format.
|
|
*/
|
|
DDASSERT( !( caps & DDSCAPS_EXECUTEBUFFER ) );
|
|
|
|
psurf->ddpfSurface = *pddpf;
|
|
if( understood_pf )
|
|
{
|
|
DPF( 8, "pitch=%ld, bpp = %d, (%hu,%hu)", psurf->lPitch,
|
|
(UINT) psurf->ddpfSurface.dwRGBBitCount,
|
|
psurf->wWidth, psurf->wHeight );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( !( caps & DDSCAPS_EXECUTEBUFFER ) )
|
|
{
|
|
/*
|
|
* Somewhat misleading message for an execute buffer.
|
|
*/
|
|
DPF( 8, "pitch=%ld, WAS THE SAME PIXEL FORMAT AS PRIMARY", psurf->lPitch );
|
|
}
|
|
}
|
|
|
|
/*
|
|
* FINALLY: set up attached surfaces: back buffers + alpha + Z
|
|
*
|
|
* NOTE: Z & alpha get attached to the back buffer
|
|
*/
|
|
if( nsurf > 1 )
|
|
{
|
|
#ifdef USE_ALPHA
|
|
if( do_zbuffer && do_abuffer && (scnt == nsurf-1) )
|
|
{
|
|
DPF( 8, "linking alpha buffer to back buffer" );
|
|
AddAttachedSurface( slist_lcl[bbuffoff], psurf_lcl, TRUE );
|
|
}
|
|
else if( do_zbuffer && do_abuffer && (scnt == nsurf-2) )
|
|
{
|
|
DPF( 8, "linking Z buffer to back buffer" );
|
|
AddAttachedSurface( slist_lcl[bbuffoff], psurf_lcl, TRUE );
|
|
}
|
|
else if( do_abuffer && (scnt == nsurf-1) )
|
|
{
|
|
DPF( 8, "linking alpha buffer to back buffer" );
|
|
AddAttachedSurface( slist_lcl[bbuffoff], psurf_lcl, TRUE );
|
|
}
|
|
else
|
|
#endif
|
|
if( do_zbuffer && (scnt == nsurf-1) )
|
|
{
|
|
DPF( 8, "linking Z buffer to back buffer" );
|
|
AddAttachedSurface( slist_int[bbuffoff], psurf_int, TRUE );
|
|
}
|
|
else if( is_flip && ((scnt == nsurf-1) ||
|
|
#ifndef USE_ALPHA
|
|
(do_zbuffer && do_abuffer && (scnt == nsurf-3)) ||
|
|
(do_abuffer && (scnt == nsurf-2)) ||
|
|
#endif
|
|
(do_zbuffer && (scnt == nsurf-2))) )
|
|
{
|
|
/*
|
|
* NOTE: For mip-maps we don't chain the last surface back
|
|
* to the first.
|
|
*/
|
|
|
|
DPF( 8, "linking buffer %d to buffer %d", scnt-1, scnt );
|
|
AddAttachedSurface( slist_int[scnt-1], psurf_int, TRUE );
|
|
/*
|
|
* link last surface to front buffer
|
|
*/
|
|
DPF( 8, "linking last buffer (%d) to front buffer", scnt );
|
|
AddAttachedSurface( slist_int[scnt], slist_int[0], TRUE );
|
|
}
|
|
else if( ( is_flip || is_mipmap ) && (scnt > 0) )
|
|
{
|
|
DPF( 8, "linking buffer %d to buffer %d", scnt-1, scnt );
|
|
AddAttachedSurface( slist_int[scnt-1], psurf_int, TRUE );
|
|
}
|
|
DPF( 8, "after addattached" );
|
|
}
|
|
} //end for(surfaces)
|
|
DPF( 8, "**************************" );
|
|
|
|
/*
|
|
* OK, now create the physical surface(s)
|
|
*
|
|
* First, see if the driver wants to do it.
|
|
*/
|
|
if( cshalfn != NULL )
|
|
{
|
|
DPF(8,"Calling driver to see if it wants to say something about create surface");
|
|
csd.CreateSurface = cshalfn;
|
|
csd.lpDD = this;
|
|
csd.lpDDSurfaceDesc = lpDDSurfaceDesc;
|
|
csd.lplpSList = slist_lcl;
|
|
csd.dwSCnt = nsurf;
|
|
/*
|
|
* NOTE: Different HAL entry points for execute buffers and
|
|
* conventional surfaces.
|
|
*/
|
|
if( caps & DDSCAPS_EXECUTEBUFFER )
|
|
{
|
|
DOHALCALL( CreateExecuteBuffer, csfn, csd, rc, emulation );\
|
|
}
|
|
else
|
|
{
|
|
DOHALCALL( CreateSurface, csfn, csd, rc, emulation );
|
|
}
|
|
if( rc == DDHAL_DRIVER_HANDLED )
|
|
{
|
|
if( csd.ddRVal != DD_OK )
|
|
{
|
|
#ifdef DEBUG
|
|
if( emulation )
|
|
{
|
|
DPF( 0, "Emulation won't let surface be created, rc=%08lx (%ld)",
|
|
csd.ddRVal, LOWORD( csd.ddRVal ) );
|
|
}
|
|
else
|
|
{
|
|
DPF( 0, "Driver won't let surface be created, rc=%08lx (%ld)",
|
|
csd.ddRVal, LOWORD( csd.ddRVal ) );
|
|
}
|
|
#endif
|
|
freeSurfaceList( slist_int, nsurf );
|
|
return csd.ddRVal;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* now, allocate any unallocated surfaces
|
|
*/
|
|
ddrval = AllocSurfaceMem( this, slist_lcl, nsurf );
|
|
if( ddrval != DD_OK )
|
|
{
|
|
freeSurfaceList( slist_int, nsurf );
|
|
return ddrval;
|
|
}
|
|
|
|
|
|
#ifdef WINNT
|
|
/*
|
|
* NT kernel needs to know about surface
|
|
*/
|
|
|
|
for( scnt=0;scnt<nsurf;scnt++ )
|
|
{
|
|
DPF( 8, " Kernel-mode handles, Surface %d ***", scnt );
|
|
|
|
if (
|
|
((slist_lcl[scnt]->ddsCaps.dwCaps & DDSCAPS_VIDEOMEMORY) &&
|
|
!(slist_lcl[scnt]->ddsCaps.dwCaps & DDSCAPS_EXECUTEBUFFER )) )//don't let NT kernel know about exec buffers
|
|
{
|
|
DPF(8,"Attempting to create NT kernel mode surface object(Flags: vidmem:%d,sysmem:%d",
|
|
(slist_lcl[scnt]->ddsCaps.dwCaps & DDSCAPS_VIDEOMEMORY),(slist_lcl[scnt]->ddsCaps.dwCaps & DDSCAPS_SYSTEMMEMORY) );
|
|
if (!DdCreateSurfaceObject(slist_lcl[scnt],slist_lcl[scnt]->ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE))
|
|
{
|
|
DPF_ERR("NT kernel mode stuff won't create its surface object!");
|
|
freeSurfaceList( slist_int, scnt );
|
|
return DDERR_GENERIC;
|
|
}
|
|
DPF(9,"Kernel mode handle is %08x",slist_lcl[scnt]->hDDSurface);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
/*
|
|
* remember the primary surface...
|
|
*/
|
|
if( lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE )
|
|
{
|
|
this_lcl->lpPrimary = slist_int[0];
|
|
}
|
|
|
|
#ifdef SHAREDZ
|
|
/*
|
|
* remember the shared back and z-buffers (if any).
|
|
*/
|
|
if( lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_SHAREDZBUFFER )
|
|
{
|
|
this_lcl->lpSharedZ = slist_int[zbuffoff];
|
|
|
|
/*
|
|
* It is possible that the an existing shared z-buffer we found
|
|
* was lost. If it was then the creation process we went through
|
|
* above has rendered it "found" so clear the lost surface flags.
|
|
*/
|
|
this_lcl->lpSharedZ->lpGbl->dwGlobalFlags &= ~DDRAWISURFGBL_MEMFREE;
|
|
}
|
|
if( lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_SHAREDBACKBUFFER )
|
|
{
|
|
this_lcl->lpSharedBack = slist_int[bbuffoff];
|
|
|
|
/*
|
|
* It is possible that the an existing shared back-buffer we found
|
|
* was lost. If it was then the creation process we went through
|
|
* above has rendered it "found" so clear the lost surface flags.
|
|
*/
|
|
this_lcl->lpSharedBack->lpGbl->dwGlobalFlags &= ~DDRAWISURFGBL_MEMFREE;
|
|
}
|
|
#endif
|
|
|
|
return DD_OK;
|
|
|
|
} /* createSurface */
|
|
|
|
/*
|
|
* createAndLinkSurfaces
|
|
*
|
|
* Really create the surface. Also used by EnumSurfaces
|
|
* Assumes the lock on the driver object has been taken.
|
|
*/
|
|
HRESULT createAndLinkSurfaces(
|
|
LPDDRAWI_DIRECTDRAW_LCL this_lcl,
|
|
LPDDSURFACEDESC lpDDSurfaceDesc,
|
|
BOOL emulation,
|
|
LPDIRECTDRAWSURFACE FAR *lplpDDSurface,
|
|
BOOL real_sysmem,
|
|
BOOL probe_driver,
|
|
LPDDRAWI_DIRECTDRAW_INT this_int )
|
|
{
|
|
LPDDRAWI_DDRAWSURFACE_INT curr_int;
|
|
LPDDRAWI_DDRAWSURFACE_LCL curr_lcl;
|
|
LPDDRAWI_DDRAWSURFACE_GBL curr;
|
|
HRESULT ddrval;
|
|
CSINFO csinfo;
|
|
LPDDRAWI_DDRAWSURFACE_INT fix_slist_int[FIX_SLIST_CNT];
|
|
LPDDRAWI_DDRAWSURFACE_LCL fix_slist_lcl[FIX_SLIST_CNT];
|
|
LPDDRAWI_DDRAWSURFACE_GBL fix_slist[FIX_SLIST_CNT];
|
|
int i;
|
|
LPDDRAWI_DIRECTDRAW_GBL this;
|
|
|
|
this = this_lcl->lpGbl;
|
|
|
|
/*
|
|
* try to create the surface
|
|
*/
|
|
csinfo.needlink = FALSE;
|
|
csinfo.slist_int = fix_slist_int;
|
|
csinfo.slist_lcl = fix_slist_lcl;
|
|
csinfo.slist = fix_slist;
|
|
csinfo.listsize = FIX_SLIST_CNT;
|
|
ddrval = createSurface( this_lcl, lpDDSurfaceDesc, &csinfo, emulation, real_sysmem, probe_driver, this_int );
|
|
|
|
/*
|
|
* if it worked, update the structures
|
|
*/
|
|
if( ddrval == DD_OK )
|
|
{
|
|
/*
|
|
* link surface(s) into chain, increment refcnt
|
|
*/
|
|
for( i=0;i<csinfo.listcnt; i++ )
|
|
{
|
|
curr_int = csinfo.slist_int[i];
|
|
curr_lcl = csinfo.slist_lcl[i];
|
|
curr = curr_lcl->lpGbl;
|
|
|
|
if( real_sysmem )
|
|
{
|
|
curr->dwGlobalFlags |= DDRAWISURFGBL_SYSMEMREQUESTED;
|
|
}
|
|
if( csinfo.needlink )
|
|
{
|
|
if( curr_lcl->ddsCaps.dwCaps & DDSCAPS_OVERLAY )
|
|
{
|
|
// This surface is an overlay. Insert it into the overlay
|
|
// Z order list. By inserting this node into the head of
|
|
// the list, it is the highest priority overlay,
|
|
// obscuring all others.
|
|
// The Z order list is implemented as a doubly linked list.
|
|
// The node for each surface exists in its
|
|
// DDRAWI_DDRAWSURFACE_GBL structure. The root node
|
|
// exists in the direct draw object. The next pointer of
|
|
// the root node points to the top-most overlay. The prev
|
|
// pointer points to the bottom-most overlay. The list
|
|
// may be traversed from back to front by following the
|
|
// prev pointers. It may be traversed from front to back
|
|
// by following the next pointers.
|
|
|
|
curr_lcl->dbnOverlayNode.next =
|
|
this->dbnOverlayRoot.next;
|
|
curr_lcl->dbnOverlayNode.prev =
|
|
(LPVOID)(&(this->dbnOverlayRoot));
|
|
this->dbnOverlayRoot.next =
|
|
(LPVOID)(&(curr_lcl->dbnOverlayNode));
|
|
curr_lcl->dbnOverlayNode.next->prev =
|
|
(LPVOID)(&(curr_lcl->dbnOverlayNode));
|
|
curr_lcl->dbnOverlayNode.object_int = curr_int;
|
|
curr_lcl->dbnOverlayNode.object = curr_lcl;
|
|
}
|
|
/*
|
|
* link into list of all surfaces
|
|
*/
|
|
curr_int->lpLink = this->dsList;
|
|
this->dsList = curr_int;
|
|
}
|
|
DD_Surface_AddRef( (LPDIRECTDRAWSURFACE) curr_int );
|
|
}
|
|
*lplpDDSurface = (LPDIRECTDRAWSURFACE) csinfo.slist_int[0];
|
|
}
|
|
|
|
|
|
/*
|
|
* free allocated list if needed
|
|
*/
|
|
if( csinfo.listsize > FIX_SLIST_CNT )
|
|
{
|
|
MemFree( csinfo.slist_int );
|
|
MemFree( csinfo.slist_lcl );
|
|
MemFree( csinfo.slist );
|
|
}
|
|
|
|
return ddrval;
|
|
|
|
} /* createAndLinkSurfaces */
|
|
|
|
/*
|
|
* InternalCreateSurface
|
|
*
|
|
* Create the surface.
|
|
* This is the internal way of doing this; used by EnumSurfaces.
|
|
* Assumes the directdraw lock has been taken.
|
|
*/
|
|
HRESULT InternalCreateSurface(
|
|
LPDDRAWI_DIRECTDRAW_LCL this_lcl,
|
|
LPDDSURFACEDESC lpDDSurfaceDesc,
|
|
LPDIRECTDRAWSURFACE FAR *lplpDDSurface,
|
|
LPDDRAWI_DIRECTDRAW_INT this_int )
|
|
{
|
|
DWORD caps;
|
|
HRESULT ddrval;
|
|
LPDDRAWI_DIRECTDRAW_GBL this;
|
|
|
|
this = this_lcl->lpGbl;
|
|
|
|
/*
|
|
* valid memory caps?
|
|
*/
|
|
caps = lpDDSurfaceDesc->ddsCaps.dwCaps;
|
|
|
|
if( (caps & DDSCAPS_SYSTEMMEMORY) && (caps & DDSCAPS_VIDEOMEMORY) )
|
|
{
|
|
DPF_ERR( "Can't specify SYSTEMMEMORY and VIDEOMEMORY" );
|
|
return DDERR_INVALIDCAPS;
|
|
}
|
|
|
|
/*
|
|
* valid memory caps?
|
|
*/
|
|
if( caps & DDSCAPS_OWNDC )
|
|
{
|
|
DPF_ERR( "OWNDC not implemented yet" );
|
|
return DDERR_UNSUPPORTED;
|
|
}
|
|
|
|
/*
|
|
* want in video memory only?
|
|
*/
|
|
if( caps & DDSCAPS_VIDEOMEMORY )
|
|
{
|
|
if( this->dwFlags & DDRAWI_NOHARDWARE )
|
|
{
|
|
DPF_ERR( "No hardware support" );
|
|
return DDERR_NODIRECTDRAWHW;
|
|
}
|
|
ddrval = createAndLinkSurfaces( this_lcl, lpDDSurfaceDesc, FALSE,
|
|
lplpDDSurface, FALSE, FALSE, this_int );
|
|
/*
|
|
* want in system memory only?
|
|
*/
|
|
}
|
|
else if( caps & DDSCAPS_SYSTEMMEMORY )
|
|
{
|
|
if( this->dwFlags & DDRAWI_NOEMULATION )
|
|
{
|
|
DPF_ERR( "No emulation support" );
|
|
return DDERR_NOEMULATION;
|
|
}
|
|
ddrval = createAndLinkSurfaces( this_lcl, lpDDSurfaceDesc, TRUE,
|
|
lplpDDSurface, TRUE, FALSE, this_int );
|
|
/*
|
|
* don't care where it goes? Try video memory first...
|
|
*/
|
|
}
|
|
else
|
|
{
|
|
if( !(this->dwFlags & DDRAWI_NOHARDWARE) )
|
|
{
|
|
lpDDSurfaceDesc->ddsCaps.dwCaps |= DDSCAPS_VIDEOMEMORY;
|
|
ddrval = createAndLinkSurfaces( this_lcl, lpDDSurfaceDesc, FALSE,
|
|
lplpDDSurface, FALSE, TRUE, this_int );
|
|
lpDDSurfaceDesc->ddsCaps.dwCaps &= ~DDSCAPS_VIDEOMEMORY;
|
|
}
|
|
else
|
|
{
|
|
ddrval = DDERR_NOEMULATION;
|
|
}
|
|
if( ddrval != DD_OK && ddrval != DDERR_INVALIDCAPS &&
|
|
ddrval != DDERR_INVALIDPARAMS )
|
|
{
|
|
if( !(this->dwFlags & DDRAWI_NOEMULATION) &&
|
|
(this->dwFlags & DDRAWI_EMULATIONINITIALIZED) )
|
|
{
|
|
lpDDSurfaceDesc->ddsCaps.dwCaps |= DDSCAPS_SYSTEMMEMORY;
|
|
ddrval = createAndLinkSurfaces( this_lcl, lpDDSurfaceDesc, TRUE,
|
|
lplpDDSurface, FALSE, FALSE, this_int );
|
|
lpDDSurfaceDesc->ddsCaps.dwCaps &= ~DDSCAPS_SYSTEMMEMORY;
|
|
}
|
|
else
|
|
{
|
|
DPF_ERR( "Couldn't allocate a surface at all" );
|
|
}
|
|
}
|
|
}
|
|
|
|
// any color keys specified?
|
|
if( (ddrval == DD_OK) &&
|
|
(lpDDSurfaceDesc->dwFlags & (DDSD_CKSRCOVERLAY|DDSD_CKDESTOVERLAY|
|
|
DDSD_CKSRCBLT|DDSD_CKDESTBLT) ) )
|
|
{
|
|
/*
|
|
* Attempt to set the specified color keys
|
|
*/
|
|
if( lpDDSurfaceDesc->dwFlags & DDSD_CKSRCBLT )
|
|
ddrval = DD_Surface_SetColorKey((LPDIRECTDRAWSURFACE)*lplpDDSurface,
|
|
DDCKEY_SRCBLT, &(lpDDSurfaceDesc->ddckCKSrcBlt) );
|
|
if(ddrval == DD_OK)
|
|
{
|
|
if( lpDDSurfaceDesc->dwFlags & DDSD_CKDESTBLT )
|
|
ddrval = DD_Surface_SetColorKey((LPDIRECTDRAWSURFACE)*lplpDDSurface,
|
|
DDCKEY_DESTBLT, &(lpDDSurfaceDesc->ddckCKDestBlt) );
|
|
if(ddrval == DD_OK)
|
|
{
|
|
if( lpDDSurfaceDesc->dwFlags & DDSD_CKSRCOVERLAY )
|
|
ddrval = DD_Surface_SetColorKey((LPDIRECTDRAWSURFACE)*lplpDDSurface,
|
|
DDCKEY_SRCOVERLAY, &(lpDDSurfaceDesc->ddckCKSrcOverlay) );
|
|
if(ddrval == DD_OK)
|
|
{
|
|
if( lpDDSurfaceDesc->dwFlags & DDSD_CKDESTOVERLAY )
|
|
ddrval = DD_Surface_SetColorKey((LPDIRECTDRAWSURFACE)*lplpDDSurface,
|
|
DDCKEY_DESTOVERLAY, &(lpDDSurfaceDesc->ddckCKDestOverlay) );
|
|
}
|
|
}
|
|
}
|
|
if( ddrval != DD_OK )
|
|
{
|
|
DPF_ERR("Surface Creation failed because color key set failed.");
|
|
DD_Surface_Release((LPDIRECTDRAWSURFACE)*lplpDDSurface);
|
|
*lplpDDSurface = NULL;
|
|
}
|
|
}
|
|
|
|
return ddrval;
|
|
|
|
} /* InternalCreateSurface */
|
|
|
|
/*
|
|
* DD_CreateSurface
|
|
*
|
|
* Create a surface.
|
|
* This is the method visible to the outside world.
|
|
*/
|
|
HRESULT DDAPI DD_CreateSurface(
|
|
LPDIRECTDRAW lpDD,
|
|
LPDDSURFACEDESC lpDDSurfaceDesc,
|
|
LPDIRECTDRAWSURFACE FAR *lplpDDSurface,
|
|
IUnknown FAR *pUnkOuter )
|
|
{
|
|
LPDDRAWI_DIRECTDRAW_INT this_int;
|
|
LPDDRAWI_DIRECTDRAW_LCL this_lcl;
|
|
LPDDRAWI_DIRECTDRAW_GBL this;
|
|
HRESULT ddrval;
|
|
DWORD caps;
|
|
|
|
if( pUnkOuter != NULL )
|
|
{
|
|
return CLASS_E_NOAGGREGATION;
|
|
}
|
|
|
|
ENTER_DDRAW();
|
|
|
|
TRY
|
|
{
|
|
this_int = (LPDDRAWI_DIRECTDRAW_INT) lpDD;
|
|
if( !VALID_DIRECTDRAW_PTR( this_int ) )
|
|
{
|
|
DPF_ERR( "Invalid driver object passed" );
|
|
LEAVE_DDRAW();
|
|
return DDERR_INVALIDOBJECT;
|
|
}
|
|
this_lcl = this_int->lpLcl;
|
|
this = this_lcl->lpGbl;
|
|
|
|
/*
|
|
* verify that cooperative level is set
|
|
*/
|
|
if( !(this_lcl->dwLocalFlags & DDRAWILCL_SETCOOPCALLED) )
|
|
{
|
|
DPF_ERR( "Must call SetCooperativeLevel before calling Create functions" );
|
|
LEAVE_DDRAW();
|
|
return DDERR_NOCOOPERATIVELEVELSET;
|
|
}
|
|
|
|
if( this->dwModeIndex == DDUNSUPPORTEDMODE )
|
|
{
|
|
DPF_ERR( "Driver is in an unsupported mode" );
|
|
LEAVE_DDRAW();
|
|
return DDERR_UNSUPPORTEDMODE;
|
|
}
|
|
|
|
if( !VALID_DDSURFACEDESC_PTR( lpDDSurfaceDesc ) )
|
|
{
|
|
DPF_ERR( "Invalid surface description" );
|
|
LEAVE_DDRAW();
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
caps = lpDDSurfaceDesc->ddsCaps.dwCaps;
|
|
*lplpDDSurface = NULL;
|
|
}
|
|
EXCEPT( EXCEPTION_EXECUTE_HANDLER )
|
|
{
|
|
DPF_ERR( "Exception encountered validating parameters" );
|
|
LEAVE_DDRAW();
|
|
return DDERR_INVALIDPARAMS;
|
|
}
|
|
|
|
if( this_lcl->dwProcessId != GetCurrentProcessId() )
|
|
{
|
|
DPF_ERR( "Process does not have access to object" );
|
|
LEAVE_DDRAW();
|
|
return DDERR_INVALIDOBJECT;
|
|
}
|
|
|
|
ddrval = InternalCreateSurface( this_lcl, lpDDSurfaceDesc, lplpDDSurface, this_int );
|
|
if( ddrval == DD_OK )
|
|
{
|
|
// FillDDSurfaceDesc( (LPDDRAWI_DDRAWSURFACE_LCL) *lplpDDSurface, lpDDSurfaceDesc );
|
|
}
|
|
|
|
LEAVE_DDRAW();
|
|
|
|
return ddrval;
|
|
|
|
} /* DD_CreateSurface */
|