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|
/*===========================================================================*/
/* */
/* Mesa-3.0 DirectX 6 Driver */
/* */
/* By Leigh McRae */
/* */
/* http://www.altsoftware.com/ */
/* */
/* Copyright (c) 1999-1998 alt.software inc. All Rights Reserved */
/*===========================================================================*/
#include "D3DHAL.h"
/*===========================================================================*/
/* Local only functions. */
/*===========================================================================*/
static int CountTrailingZeros( DWORD dwMask );
/*===========================================================================*/
/* This function is used to get the pointer to the surface and the pitch for*/
/* the scanline rendering functions. */
/*===========================================================================*/
/* RETURN: */
/*===========================================================================*/
extern "C" DDSURFACEDESC2 *LockHAL( PMESAD3DSHARED pShared, BOOL bBack )
{
PMESAD3DHAL pHAL = (PMESAD3DHAL)pShared;
static DDSURFACEDESC2 ddsd2;
HRESULT rc;
DPF(( DBG_FUNC, "LockHAL();" ));
/* Set the request structure up first. */
memset( &ddsd2, 0, sizeof(DDSURFACEDESC2) );
ddsd2.dwSize = sizeof(DDSURFACEDESC2);
/* Make sure we have enough info. */
if ( pHAL )
{
rc = pHAL->lpDDSRender->Lock( NULL, &ddsd2, DDLOCK_WAIT, NULL );
if ( FAILED(rc) )
{
RIP( pHAL, "Lock (RENDER) ->", ErrorStringD3D(rc) );
}
}
return &ddsd2;
}
/*===========================================================================*/
/* This is just a simple wrapper. I probably don't need to do any error */
/* checking as the Lock must have worked inorder to get here... */
/*===========================================================================*/
/* RETURN: */
/*===========================================================================*/
extern "C" void UnlockHAL( PMESAD3DSHARED pShared, BOOL bBack )
{
PMESAD3DHAL pHAL = (PMESAD3DHAL)pShared;
HRESULT rc;
DPF(( DBG_FUNC, "UnlockHAL();" ));
/* Make sure we have enough info. */
if ( pHAL )
{
rc = pHAL->lpDDSRender->Unlock( NULL );
if ( FAILED(rc) )
{
RIP( pHAL, "Unlock (RENDER) ->", ErrorStringD3D(rc) );
}
}
}
/*===========================================================================*/
/* This function will track the main/Primary window that will be used as the*/
/* target for the Blt in SwapBuffers. As a side effect the call will check */
/* to see if the primary surface is the same size and position as the screen.*/
/* If they are the same size we will call it fullscreen... */
/*===========================================================================*/
/* RETURN: */
/*===========================================================================*/
extern "C" void UpdateScreenPosHAL( PMESAD3DSHARED pShared )
{
PMESAD3DHAL pHAL = (PMESAD3DHAL)pShared;
POINT pt;
DWORD dwWidth, dwHeight;
DPF(( DBG_FUNC, "UpdateScreenPosHAL();" ));
/* Make sure we have enough info. */
if ( pHAL != NULL )
{
/* Update the windows screen position. */
GetClientRect( pShared->hwnd, &pShared->rectW );
pt.x = pt.y = 0;
ClientToScreen( pShared->hwnd, &pt );
OffsetRect( &pShared->rectW, pt.x, pt.y);
/* Compare the primary to the screen. */
dwWidth = GetSystemMetrics( SM_CXSCREEN );
dwHeight = GetSystemMetrics( SM_CYSCREEN );
if ( (pShared->rectW.left > 0) || (pShared->rectW.top > 0) ||
(pShared->rectW.right > dwWidth) || (pShared->rectW.bottom > dwHeight) )
pShared->bWindow = TRUE;
else
pShared->bWindow = FALSE;
}
}
/*===========================================================================*/
/* This function will fill in the pixel info structure defined in D3Dshared.*/
/* Basicly it will take a DirectDraw pixelformat structure and make scaling */
/* values that will convert from 8bit channels to whatever the supplied ddpf */
/* uses. Also we will generate shift values that will be used to get move */
/* each component of the pixel into place. */
/* I have now added a special case for a 1bit alpha channel. If I find a 1b*/
/* alpha then I will set the scale to -1.0 which should be unique. Later I */
/* can check the alpha scale value too see if its -1.0 and thus handle it. I*/
/* was finding that the case was not working tom my advantage so this is my */
/* HACK for the day. As a TODO I should work on this... */
/*===========================================================================*/
/* RETURN: */
/*===========================================================================*/
void Solve8BitChannelPixelFormat( DDPIXELFORMAT *pddpf, PPIXELINFO pPixel )
{
DPF(( DBG_FUNC, "Solve8BitChannelPixelFromat();" ));
memset( pPixel, 0, sizeof(PPIXELINFO) );
/* Check too see if the color space is valid in the PF. */
if ( pddpf->dwFlags & DDPF_RGB )
{
/* Solve the red stuff. */
pPixel->dwRMask = pddpf->dwRBitMask;
pPixel->rShift = CountTrailingZeros( pPixel->dwRMask );
pPixel->rScale = (float)0.00392156 * (float)(pPixel->dwRMask >> pPixel->rShift);
/* Solve the green thingy's. */
pPixel->dwGMask = pddpf->dwGBitMask;
pPixel->gShift = CountTrailingZeros( pPixel->dwGMask );
pPixel->gScale = (float)0.00392156 * (float)(pPixel->dwGMask >> pPixel->gShift);
/* Solve the blues. */
pPixel->dwBMask = pddpf->dwBBitMask;
pPixel->bShift = CountTrailingZeros( pddpf->dwBBitMask );
pPixel->bScale = (float)0.00392156 * (float)(pddpf->dwBBitMask >> pPixel->bShift);
}
/* Do the alpha channel if there is one. */
if ( pddpf->dwFlags & DDPF_ALPHAPIXELS )
{
pPixel->dwAMask = pddpf->dwRGBAlphaBitMask;
pPixel->aShift = CountTrailingZeros( pPixel->dwAMask );
/* Special case a 1bit alpha. */
if ( (pPixel->dwAMask >> pPixel->aShift) == 1 )
pPixel->aScale = -1.0;
else
pPixel->aScale = (float)0.00392156 * (float)(pPixel->dwAMask >> pPixel->aShift);
}
/* Get the size of the pixel in bytes. Should work as dwRGBBitCount is in a union. */
pPixel->cb = pddpf->dwRGBBitCount / 8;
}
/*===========================================================================*/
/* See RETURN :) */
/*===========================================================================*/
/* RETURN: number of contiguous zeros starting from the right. */
/*===========================================================================*/
static int CountTrailingZeros( DWORD dwMask )
{
DWORD Mask;
if ( dwMask == 0 )
return 32;
/* Can't take credit for this one! */
Mask = dwMask & -(int)dwMask;
return ((Mask & 0xFFFF0000)!=0) << 4
| ((Mask & 0xFF00FF00)!=0) << 3
| ((Mask & 0xF0F0F0F0)!=0) << 2
| ((Mask & 0xCCCCCCCC)!=0) << 1
| ((Mask & 0xAAAAAAAA)!=0);
}
/*===========================================================================*/
/* This function will convert the DDraw error code to its macro string. The*/
/* returned pointer is static so you need not worry about memory managemnet */
/* but the error message gets written over from call to call... */
/*===========================================================================*/
/* RETURN: pointer to the single static buffer that hold the error message. */
/*===========================================================================*/
char *ErrorStringD3D( HRESULT hr )
{
static char errorString[128];
switch( hr )
{
case DDERR_ALREADYINITIALIZED:
strcpy( errorString, "DDERR_ALREADYINITIALIZED" );
break;
case DDERR_CANNOTATTACHSURFACE:
strcpy( errorString, "DDERR_CANNOTATTACHSURFACE" );
break;
case DDERR_CANNOTDETACHSURFACE:
strcpy( errorString, "DDERR_CANNOTDETACHSURFACE" );
break;
case DDERR_CURRENTLYNOTAVAIL:
strcpy( errorString, "DDERR_CURRENTLYNOTAVAIL" );
break;
case DDERR_EXCEPTION:
strcpy( errorString, "DDERR_EXCEPTION" );
break;
case DDERR_GENERIC:
strcpy( errorString, "DDERR_GENERIC" );
break;
case DDERR_HEIGHTALIGN:
strcpy( errorString, "DDERR_HEIGHTALIGN" );
break;
case DDERR_INCOMPATIBLEPRIMARY:
strcpy( errorString, "DDERR_INCOMPATIBLEPRIMARY" );
break;
case DDERR_INVALIDCAPS:
strcpy( errorString, "DDERR_INVALIDCAPS" );
break;
case DDERR_INVALIDCLIPLIST:
strcpy( errorString, "DDERR_INVALIDCLIPLIST" );
break;
case DDERR_INVALIDMODE:
strcpy( errorString, "DDERR_INVALIDMODE" );
break;
case DDERR_INVALIDOBJECT:
strcpy( errorString, "DDERR_INVALIDOBJECT" );
break;
case DDERR_INVALIDPARAMS:
strcpy( errorString, "DDERR_INVALIDPARAMS" );
break;
case DDERR_INVALIDPIXELFORMAT:
strcpy( errorString, "DDERR_INVALIDPIXELFORMAT" );
break;
case DDERR_INVALIDRECT:
strcpy( errorString, "DDERR_INVALIDRECT" );
break;
case DDERR_LOCKEDSURFACES:
strcpy( errorString, "DDERR_LOCKEDSURFACES" );
break;
case DDERR_NO3D:
strcpy( errorString, "DDERR_NO3D" );
break;
case DDERR_NOALPHAHW:
strcpy( errorString, "DDERR_NOALPHAHW" );
break;
case DDERR_NOCLIPLIST:
strcpy( errorString, "DDERR_NOCLIPLIST" );
break;
case DDERR_NOCOLORCONVHW:
strcpy( errorString, "DDERR_NOCOLORCONVHW" );
break;
case DDERR_NOCOOPERATIVELEVELSET:
strcpy( errorString, "DDERR_NOCOOPERATIVELEVELSET" );
break;
case DDERR_NOCOLORKEY:
strcpy( errorString, "DDERR_NOCOLORKEY" );
break;
case DDERR_NOCOLORKEYHW:
strcpy( errorString, "DDERR_NOCOLORKEYHW" );
break;
case DDERR_NODIRECTDRAWSUPPORT:
strcpy( errorString, "DDERR_NODIRECTDRAWSUPPORT" );
break;
case DDERR_NOEXCLUSIVEMODE:
strcpy( errorString, "DDERR_NOEXCLUSIVEMODE" );
break;
case DDERR_NOFLIPHW:
strcpy( errorString, "DDERR_NOFLIPHW" );
break;
case DDERR_NOGDI:
strcpy( errorString, "DDERR_NOGDI" );
break;
case DDERR_NOMIRRORHW:
strcpy( errorString, "DDERR_NOMIRRORHW" );
break;
case DDERR_NOTFOUND:
strcpy( errorString, "DDERR_NOTFOUND" );
break;
case DDERR_NOOVERLAYHW:
strcpy( errorString, "DDERR_NOOVERLAYHW" );
break;
case DDERR_OVERLAPPINGRECTS:
strcpy( errorString, "DDERR_OVERLAPPINGRECTS" );
break;
case DDERR_NORASTEROPHW:
strcpy( errorString, "DDERR_NORASTEROPHW" );
break;
case DDERR_NOROTATIONHW:
strcpy( errorString, "DDERR_NOROTATIONHW" );
break;
case DDERR_NOSTRETCHHW:
strcpy( errorString, "DDERR_NOSTRETCHHW" );
break;
case DDERR_NOT4BITCOLOR:
strcpy( errorString, "DDERR_NOT4BITCOLOR" );
break;
case DDERR_NOT4BITCOLORINDEX:
strcpy( errorString, "DDERR_NOT4BITCOLORINDEX" );
break;
case DDERR_NOT8BITCOLOR:
strcpy( errorString, "DDERR_NOT8BITCOLOR" );
break;
case DDERR_NOTEXTUREHW:
strcpy( errorString, "DDERR_NOTEXTUREHW" );
break;
case DDERR_NOVSYNCHW:
strcpy( errorString, "DDERR_NOVSYNCHW" );
break;
case DDERR_NOZBUFFERHW:
strcpy( errorString, "DDERR_NOZBUFFERHW" );
break;
case DDERR_NOZOVERLAYHW:
strcpy( errorString, "DDERR_NOZOVERLAYHW" );
break;
case DDERR_OUTOFCAPS:
strcpy( errorString, "DDERR_OUTOFCAPS" );
break;
case DDERR_OUTOFMEMORY:
strcpy( errorString, "DDERR_OUTOFMEMORY" );
break;
case DDERR_OUTOFVIDEOMEMORY:
strcpy( errorString, "DDERR_OUTOFVIDEOMEMORY" );
break;
case DDERR_OVERLAYCANTCLIP:
strcpy( errorString, "DDERR_OVERLAYCANTCLIP" );
break;
case DDERR_OVERLAYCOLORKEYONLYONEACTIVE:
strcpy( errorString, "DDERR_OVERLAYCOLORKEYONLYONEACTIVE" );
break;
case DDERR_PALETTEBUSY:
strcpy( errorString, "DDERR_PALETTEBUSY" );
break;
case DDERR_COLORKEYNOTSET:
strcpy( errorString, "DDERR_COLORKEYNOTSET" );
break;
case DDERR_SURFACEALREADYATTACHED:
strcpy( errorString, "DDERR_SURFACEALREADYATTACHED" );
break;
case DDERR_SURFACEALREADYDEPENDENT:
strcpy( errorString, "DDERR_SURFACEALREADYDEPENDENT" );
break;
case DDERR_SURFACEBUSY:
strcpy( errorString, "DDERR_SURFACEBUSY" );
break;
case DDERR_CANTLOCKSURFACE:
strcpy( errorString, "DDERR_CANTLOCKSURFACE" );
break;
case DDERR_SURFACEISOBSCURED:
strcpy( errorString, "DDERR_SURFACEISOBSCURED" );
break;
case DDERR_SURFACELOST:
strcpy( errorString, "DDERR_SURFACELOST" );
break;
case DDERR_SURFACENOTATTACHED:
strcpy( errorString, "DDERR_SURFACENOTATTACHED" );
break;
case DDERR_TOOBIGHEIGHT:
strcpy( errorString, "DDERR_TOOBIGHEIGHT" );
break;
case DDERR_TOOBIGSIZE:
strcpy( errorString, "DDERR_TOOBIGSIZE" );
break;
case DDERR_TOOBIGWIDTH:
strcpy( errorString, "DDERR_TOOBIGWIDTH" );
break;
case DDERR_UNSUPPORTED:
strcpy( errorString, "DDERR_UNSUPPORTED" );
break;
case DDERR_UNSUPPORTEDFORMAT:
strcpy( errorString, "DDERR_UNSUPPORTEDFORMAT" );
break;
case DDERR_UNSUPPORTEDMASK:
strcpy( errorString, "DDERR_UNSUPPORTEDMASK" );
break;
case DDERR_INVALIDSTREAM:
strcpy( errorString, "DDERR_INVALIDSTREAM" );
break;
case DDERR_VERTICALBLANKINPROGRESS:
strcpy( errorString, "DDERR_VERTICALBLANKINPROGRESS" );
break;
case DDERR_WASSTILLDRAWING:
strcpy( errorString, "DDERR_WASSTILLDRAWING" );
break;
case DDERR_XALIGN:
strcpy( errorString, "DDERR_XALIGN" );
break;
case DDERR_INVALIDDIRECTDRAWGUID:
strcpy( errorString, "DDERR_INVALIDDIRECTDRAWGUID" );
break;
case DDERR_DIRECTDRAWALREADYCREATED:
strcpy( errorString, "DDERR_DIRECTDRAWALREADYCREATED" );
break;
case DDERR_NODIRECTDRAWHW:
strcpy( errorString, "DDERR_NODIRECTDRAWHW" );
break;
case DDERR_PRIMARYSURFACEALREADYEXISTS:
strcpy( errorString, "DDERR_PRIMARYSURFACEALREADYEXISTS" );
break;
case DDERR_NOEMULATION:
strcpy( errorString, "DDERR_NOEMULATION" );
break;
case DDERR_REGIONTOOSMALL:
strcpy( errorString, "DDERR_REGIONTOOSMALL" );
break;
case DDERR_CLIPPERISUSINGHWND:
strcpy( errorString, "DDERR_CLIPPERISUSINGHWND" );
break;
case DDERR_NOCLIPPERATTACHED:
strcpy( errorString, "DDERR_NOCLIPPERATTACHED" );
break;
case DDERR_NOHWND:
strcpy( errorString, "DDERR_NOHWND" );
break;
case DDERR_HWNDSUBCLASSED:
strcpy( errorString, "DDERR_HWNDSUBCLASSED" );
break;
case DDERR_HWNDALREADYSET:
strcpy( errorString, "DDERR_HWNDALREADYSET" );
break;
case DDERR_NOPALETTEATTACHED:
strcpy( errorString, "DDERR_NOPALETTEATTACHED" );
break;
case DDERR_NOPALETTEHW:
strcpy( errorString, "DDERR_NOPALETTEHW" );
break;
case DDERR_BLTFASTCANTCLIP:
strcpy( errorString, "DDERR_BLTFASTCANTCLIP" );
break;
case DDERR_NOBLTHW:
strcpy( errorString, "DDERR_NOBLTHW" );
break;
case DDERR_NODDROPSHW:
strcpy( errorString, "DDERR_NODDROPSHW" );
break;
case DDERR_OVERLAYNOTVISIBLE:
strcpy( errorString, "DDERR_OVERLAYNOTVISIBLE" );
break;
case DDERR_NOOVERLAYDEST:
strcpy( errorString, "DDERR_NOOVERLAYDEST" );
break;
case DDERR_INVALIDPOSITION:
strcpy( errorString, "DDERR_INVALIDPOSITION" );
break;
case DDERR_NOTAOVERLAYSURFACE:
strcpy( errorString, "DDERR_NOTAOVERLAYSURFACE" );
break;
case DDERR_EXCLUSIVEMODEALREADYSET:
strcpy( errorString, "DDERR_EXCLUSIVEMODEALREADYSET" );
break;
case DDERR_NOTFLIPPABLE:
strcpy( errorString, "DDERR_NOTFLIPPABLE" );
break;
case DDERR_CANTDUPLICATE:
strcpy( errorString, "DDERR_CANTDUPLICATE" );
break;
case DDERR_NOTLOCKED:
strcpy( errorString, "DDERR_NOTLOCKED" );
break;
case DDERR_CANTCREATEDC:
strcpy( errorString, "DDERR_CANTCREATEDC" );
break;
case DDERR_NODC:
strcpy( errorString, "DDERR_NODC" );
break;
case DDERR_WRONGMODE:
strcpy( errorString, "DDERR_WRONGMODE" );
break;
case DDERR_IMPLICITLYCREATED:
strcpy( errorString, "DDERR_IMPLICITLYCREATED" );
break;
case DDERR_NOTPALETTIZED:
strcpy( errorString, "DDERR_NOTPALETTIZED" );
break;
case DDERR_UNSUPPORTEDMODE:
strcpy( errorString, "DDERR_UNSUPPORTEDMODE" );
break;
case DDERR_NOMIPMAPHW:
strcpy( errorString, "DDERR_NOMIPMAPHW" );
break;
case DDERR_INVALIDSURFACETYPE:
strcpy( errorString, "DDERR_INVALIDSURFACETYPE" );
break;
case DDERR_NOOPTIMIZEHW:
strcpy( errorString, "DDERR_NOOPTIMIZEHW" );
break;
case DDERR_NOTLOADED:
strcpy( errorString, "DDERR_NOTLOADED" );
break;
case DDERR_NOFOCUSWINDOW:
strcpy( errorString, "DDERR_NOFOCUSWINDOW" );
break;
case DDERR_DCALREADYCREATED:
strcpy( errorString, "DDERR_DCALREADYCREATED" );
break;
case DDERR_NONONLOCALVIDMEM:
strcpy( errorString, "DDERR_NONONLOCALVIDMEM" );
break;
case DDERR_CANTPAGELOCK:
strcpy( errorString, "DDERR_CANTPAGELOCK" );
break;
case DDERR_CANTPAGEUNLOCK:
strcpy( errorString, "DDERR_CANTPAGEUNLOCK" );
break;
case DDERR_NOTPAGELOCKED:
strcpy( errorString, "DDERR_NOTPAGELOCKED" );
break;
case DDERR_MOREDATA:
strcpy( errorString, "DDERR_MOREDATA" );
break;
case DDERR_EXPIRED:
strcpy( errorString, "DDERR_EXPIRED" );
break;
case DDERR_VIDEONOTACTIVE:
strcpy( errorString, "DDERR_VIDEONOTACTIVE" );
break;
case DDERR_DEVICEDOESNTOWNSURFACE:
strcpy( errorString, "DDERR_DEVICEDOESNTOWNSURFACE" );
break;
case DDERR_NOTINITIALIZED:
strcpy( errorString, "DDERR_NOTINITIALIZED" );
break;
default:
strcpy( errorString, "<unknown error code>" );
break;
}
return &errorString[0];
}
|
