479 lines
15 KiB
C
479 lines
15 KiB
C
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/******************************Module*Header*******************************\
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* Module Name: mcdutil.h
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*
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* Include file which indirects all of the hardware-dependent functionality
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* in the MCD driver code.
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*
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* Copyright (c) 1996 Microsoft Corporation
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\**************************************************************************/
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#ifndef _MCDUTIL_H
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#define _MCDUTIL_H
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// Function prorotypes:
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VOID PickRenderingFuncs(DEVRC *pRc);
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#if DBG
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UCHAR *MCDDbgAlloc(UINT);
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VOID MCDDbgFree(UCHAR *);
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#define MCDAlloc MCDDbgAlloc
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#define MCDFree MCDDbgFree
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VOID MCDrvDebugPrint(char *, ...);
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#define MCDBG_PRINT MCDrvDebugPrint
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#else
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UCHAR *MCDAlloc(UINT);
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VOID MCDFree(UCHAR *);
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#define MCDBG_PRINT
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#endif
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#define INTERSECTRECT(RectInter, pRect, Rect)\
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{\
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RectInter.left = max(pRect->left, Rect.left);\
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RectInter.right = min(pRect->right, Rect.right);\
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RectInter.top = max(pRect->top, Rect.top);\
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RectInter.bottom = min(pRect->bottom, Rect.bottom);\
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}
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#define MCD_CHECK_RC(pRc)\
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if (pRc == NULL) {\
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MCDBG_PRINT("NULL device RC");\
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return FALSE;\
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}
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#define MCD_CHECK_DEVWND(pMCDSurface, pDevWnd, resChangedRet)\
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{\
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if (!pDevWnd) {\
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MCDBG_PRINT("MCD_CHECK_DEVWND: NULL DEVWND");\
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return FALSE;\
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}\
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\
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if (pDevWnd->dispUnique != GetDisplayUniqueness((PDEV *)pMCDSurface->pso->dhpdev)) {\
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MCDBG_PRINT("MCD_CHECK_DEVWND: resolution changed but not updated");\
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return resChangedRet;\
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}\
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}
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#define MCD_CHECK_BUFFERS_VALID(pMCDSurface, pRc, resChangedRet)\
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{\
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DEVWND *pDevWnd = (DEVWND *)pMCDSurface->pWnd->pvUser;\
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\
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MCD_CHECK_DEVWND(pMCDSurface, pDevWnd, resChangedRet);\
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\
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if (((pRc)->backBufEnabled) &&\
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(!pDevWnd->bValidBackBuffer)) {\
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MCDBG_PRINT("HW_CHECK_BUFFERS_VALID: back buffer invalid");\
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return FALSE;\
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}\
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\
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if (((pRc)->zBufEnabled) &&\
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(!pDevWnd->bValidZBuffer)) {\
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MCDBG_PRINT("HW_CHECK_BUFFERS_VALID: z buffer invalid");\
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return FALSE;\
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}\
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\
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}
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#define MCD_INIT_BUFFER_PARAMS(pMCDSurface, pMCDWnd, pDevWnd, pRc)\
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{\
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pRc->hwYOrgBias = pMCDWnd->clipBoundsRect.top;\
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\
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if ((pRc)->MCDState.drawBuffer == GL_FRONT) {\
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(pRc)->hwBufferYBias = 0;\
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} else if ((pRc)->MCDState.drawBuffer == GL_BACK) {\
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if (ppdev->pohBackBuffer == pDevWnd->pohBackBuffer) {\
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pRc->hwBufferYBias = pDevWnd->backBufferY;\
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} else {\
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pRc->hwBufferYBias = pDevWnd->backBufferY - \
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pMCDWnd->clipBoundsRect.top;\
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}\
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}\
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}
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__inline ULONG HW_GET_VCOUNT(BYTE *pjBase)
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{
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CP_EIEIO();
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return(CP_READ_REGISTER((pjBase) + HST_VCOUNT));
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}
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__inline void HW_WAIT_DRAWING_DONE(DEVRC *pRc)
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{
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BYTE *pjBase = pRc->ppdev->pjBase;
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ULONG *pScreen;
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volatile ULONG read;
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while ((GET_FIFO_SPACE(pjBase) < FIFOSIZE) || IS_BUSY(pjBase))
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;
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pScreen = (ULONG *)pRc->ppdev->pjScreen;
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read = *pScreen;
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read |= *(pScreen+32);
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}
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__inline void HW_INIT_DRAWING_STATE(MCDSURFACE *pMCDSurface, MCDWINDOW *pMCDWnd,
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DEVRC *pRc)
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{
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DEVWND *pDevWnd = (DEVWND *)pMCDWnd->pvUser;
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PDEV *ppdev = (PDEV *)pMCDSurface->pso->dhpdev;
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BYTE *pjBase = ppdev->pjBase;
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ULONG ulAccess;
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LONG yOrg;
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CHECK_FIFO_SPACE(pjBase, 4);
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ulAccess = ppdev->ulAccess;
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if (!(pRc->MCDState.enables & MCD_DITHER_ENABLE))
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ulAccess |= dither_DISABLE;
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pRc->ulAccess = ulAccess;
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CP_WRITE(pjBase, DWG_MACCESS, ulAccess);
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// Stash the upper-left y away in the context:
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pRc->hwYOrgBias = pMCDWnd->clipBoundsRect.top;
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// Note: zBufferOffset is maintained in MCDrvTrackWindow
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if (pRc->MCDState.drawBuffer == GL_FRONT) {
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if (pDevWnd->pohZBuffer) {
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LONG zDiff;
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if (ppdev->pohZBuffer == pDevWnd->pohZBuffer)
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zDiff = pDevWnd->zBufferOffset;
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else
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zDiff = pDevWnd->zBufferOffset -
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(pMCDWnd->clipBoundsRect.top * pDevWnd->zPitch);
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if (zDiff < 0)
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zDiff = 0x800000 + zDiff;
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ASSERTDD((zDiff & 0x1ff) == 0,
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"Front and Z buffers are not a multiple of 512 apart.");
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CP_WRITE(pjBase, DWG_ZORG, zDiff);
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}
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pRc->hwBufferYBias = 0;
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yOrg = pMCDWnd->clipBoundsRect.top;
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} else if (pRc->MCDState.drawBuffer == GL_BACK) {
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if (pDevWnd->pohZBuffer) {
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LONG zDiff;
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zDiff = pDevWnd->zBufferOffset -
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(pDevWnd->backBufferY * pDevWnd->zPitch);
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ASSERTDD((zDiff & 0x1ff) == 0,
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"Back and Z buffers are not a multiple of 512 apart.");
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if (zDiff < 0)
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zDiff = 0x800000 + zDiff;
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CP_WRITE(pjBase, DWG_ZORG, zDiff);
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}
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if (ppdev->pohBackBuffer == pDevWnd->pohBackBuffer) {
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yOrg = pMCDWnd->clipBoundsRect.top + pDevWnd->backBufferY;
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pRc->hwBufferYBias = pDevWnd->backBufferY;
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} else {
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yOrg = pDevWnd->backBufferY;
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pRc->hwBufferYBias = pDevWnd->backBufferY -
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pMCDWnd->clipBoundsRect.top;
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}
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}
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// We have to adjust the stipple pattern on each batch since the window
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// may have moved, and the HW stipple pattern is screen-relative whereas
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// OpenGL's is window-relative. We can't do the update in the tracking
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// function since we don't have an RC. Note that we only deal with simple
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// (101010) checkerboard stipples which are the most common.
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if (pRc->hwStipple) {
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LONG ofsAdj = (pMCDSurface->pWnd->clientRect.bottom & 0x1) ^
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(pMCDSurface->pWnd->clientRect.left & 0x1);
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pRc->hwTrapFunc &= ~((ULONG)trans_15);
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if (ofsAdj)
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pRc->hwTrapFunc |= (pRc->hwStipple ^ (trans_1 | trans_2));
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else
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pRc->hwTrapFunc |= pRc->hwStipple;
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}
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CP_WRITE(pjBase, DWG_YDSTORG, (yOrg * ppdev->cxMemory) + ppdev->ulYDstOrg);
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CP_WRITE(pjBase, DWG_PLNWT, pRc->hwPlaneMask);
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}
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__inline void HW_INIT_PRIMITIVE_STATE(MCDSURFACE *pMCDSurface, DEVRC *pRc)
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{
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PDEV *ppdev = (PDEV *)pMCDSurface->pso->dhpdev;
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BYTE *pjBase = ppdev->pjBase;
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if (!(pRc->privateEnables & __MCDENABLE_SMOOTH)) {
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// We will be using the interpolation mode of the hardware, but we'll
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// only be interpolation Z, so set the color deltas to 0.
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CHECK_FIFO_SPACE(pjBase, 6);
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CP_WRITE(pjBase, DWG_DR6, 0);
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CP_WRITE(pjBase, DWG_DR7, 0);
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CP_WRITE(pjBase, DWG_DR10, 0);
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CP_WRITE(pjBase, DWG_DR11, 0);
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CP_WRITE(pjBase, DWG_DR14, 0);
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CP_WRITE(pjBase, DWG_DR15, 0);
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}
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CHECK_FIFO_SPACE(pjBase, FIFOSIZE);
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pRc->cFifo = 32;
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}
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__inline void HW_DEFAULT_STATE(MCDSURFACE *pMCDSurface)
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{
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PDEV *ppdev = (PDEV *)pMCDSurface->pso->dhpdev;
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BYTE *pjBase = ppdev->pjBase;
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CHECK_FIFO_SPACE(pjBase, 7);
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// restore default clipping, sign register, plane mask, pitch
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CP_WRITE(pjBase, DWG_MACCESS, ppdev->ulAccess);
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CP_WRITE(pjBase, DWG_SGN, 0);
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CP_WRITE(pjBase, DWG_PITCH, ppdev->cxMemory | ylin_LINEARIZE);
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CP_WRITE(pjBase, DWG_PLNWT, ppdev->ulPlnWt);
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CP_WRITE(pjBase, DWG_YDSTORG, ppdev->ulYDstOrg);
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vResetClipping(ppdev);
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ppdev->HopeFlags = 0; // brute-force this
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}
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__inline void HW_GET_PLANE_MASK(DEVRC *pRc)
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{
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if (pRc->MCDState.colorWritemask[0] &&
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pRc->MCDState.colorWritemask[1] &&
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pRc->MCDState.colorWritemask[2] &&
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pRc->MCDState.colorWritemask[3])
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pRc->hwPlaneMask = ~((ULONG)0);
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else {
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ULONG mask = 0;
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if (pRc->MCDState.colorWritemask[0])
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mask |= ((1 << pRc->pixelFormat.rBits) - 1) <<
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pRc->pixelFormat.rShift;
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if (pRc->MCDState.colorWritemask[1])
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mask |= ((1 << pRc->pixelFormat.gBits) - 1) <<
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pRc->pixelFormat.gShift;
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if (pRc->MCDState.colorWritemask[2])
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mask |= ((1 << pRc->pixelFormat.bBits) - 1) <<
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pRc->pixelFormat.bShift;
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switch (pRc->pixelFormat.cColorBits) {
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case 8:
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pRc->hwPlaneMask = mask | (mask << 8) | (mask << 16) | (mask << 24);
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break;
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case 15:
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case 16:
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pRc->hwPlaneMask = mask | (mask << 16);
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break;
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default:
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pRc->hwPlaneMask = mask;
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break;
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}
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}
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}
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__inline void HW_START_FILL_RECT(MCDSURFACE *pMCDSurface, MCDRC *pMCDRc,
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DEVRC *pRc, ULONG buffers)
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{
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PDEV *ppdev = (PDEV *)pMCDSurface->pso->dhpdev;
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BYTE *pjBase = ppdev->pjBase;
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DEVWND *pDevWnd = (DEVWND *)pMCDSurface->pWnd->pvUser;
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ULONG hwOp;
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BOOL bFillC = (buffers & GL_COLOR_BUFFER_BIT) != 0;
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BOOL bFillZ = (buffers & GL_DEPTH_BUFFER_BIT) &&
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pRc->MCDState.depthWritemask;
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RGBACOLOR color;
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ULONG zFillValue;
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ULONG sumColor;
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//MCDBG_PRINT("HW_START_FILL_RECT: bFillC = %d, bFillZ = %d", bFillC, bFillZ);
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// This is a little slimy, but we don't know whether or not the plane
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// mask has changed since the last drawing batch:
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if (pRc->pickNeeded)
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HW_GET_PLANE_MASK(pRc);
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if (!bFillZ && (pRc->MCDState.colorClearValue.r == (MCDFLOAT)0.0) &&
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(pRc->MCDState.colorClearValue.g == (MCDFLOAT)0.0) &&
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(pRc->MCDState.colorClearValue.b == (MCDFLOAT)0.0)) {
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CHECK_FIFO_SPACE(pjBase, 3);
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CP_WRITE(pjBase, DWG_DWGCTL, opcode_TRAP | atype_RPL | bop_SRCCOPY |
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zdrwen_NO_DEPTH | blockm_ON | solid_SOLID | arzero_ZERO |
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sgnzero_ZERO);
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CP_WRITE(pjBase, DWG_FCOL, 0);
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CP_WRITE(pjBase, DWG_PLNWT, pRc->hwPlaneMask);
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} else {
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CHECK_FIFO_SPACE(pjBase, 16);
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MCDFIXEDRGB(color, pRc->MCDState.colorClearValue);
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// This logic is needed to pass conformance, since dithering
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// with pure white will cause problems on the Millenium.
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sumColor = (color.r | color.g | color.b) & ~(0x7fff);
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if ((sumColor == 0x7f8000) || (sumColor == 0)) {
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CP_WRITE(pjBase, DWG_MACCESS, pRc->ulAccess | dither_DISABLE);
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}
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//MCDBG_PRINT("fixcolor = %x, %x, %x, %x", color.r, color.g, color.b, color.a);
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//color.b = 0x3f0000;
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//!!MCDBG_PRINT("realcolor = %f, %f, %f, %f", pRc->MCDState.colorClearValue.r,
|
||
|
|
//!! pRc->MCDState.colorClearValue.g,
|
||
|
|
//!! pRc->MCDState.colorClearValue.b,
|
||
|
|
//!! pRc->MCDState.colorClearValue.a);
|
||
|
|
|
||
|
|
// NOTE: For Storm, assuming it's fixed so that the z-buffer isn't
|
||
|
|
// always written, regardless of the 'zdrwen' bit, we will
|
||
|
|
// have to clear the z-buffer using a 2-d blt (don't forget
|
||
|
|
// to reset clipping!). But with the Athena, we get this
|
||
|
|
// functionality by default.
|
||
|
|
|
||
|
|
zFillValue = (ULONG)(pRc->MCDState.depthClearValue);
|
||
|
|
|
||
|
|
//MCDBG_PRINT("zFillValue = %x", zFillValue);
|
||
|
|
|
||
|
|
if (bFillZ) {
|
||
|
|
//MCDBG_PRINT("Fill Rect with Color+Z");
|
||
|
|
CP_WRITE(pjBase, DWG_DWGCTL, opcode_TRAP | atype_ZI | bop_SRCCOPY |
|
||
|
|
solid_SOLID | arzero_ZERO | sgnzero_ZERO);
|
||
|
|
CP_WRITE(pjBase, DWG_DR0, zFillValue << 15);
|
||
|
|
} else {
|
||
|
|
//MCDBG_PRINT("Fill Rect with Color");
|
||
|
|
CP_WRITE(pjBase, DWG_DWGCTL, opcode_TRAP | atype_I | bop_SRCCOPY |
|
||
|
|
solid_SOLID | arzero_ZERO | sgnzero_ZERO);
|
||
|
|
}
|
||
|
|
|
||
|
|
// If we're filling the z-buffer only, zero the plane mask:
|
||
|
|
|
||
|
|
if (bFillZ && !bFillC)
|
||
|
|
CP_WRITE(pjBase, DWG_PLNWT, 0);
|
||
|
|
else
|
||
|
|
CP_WRITE(pjBase, DWG_PLNWT, pRc->hwPlaneMask);
|
||
|
|
|
||
|
|
CP_WRITE(pjBase, DWG_DR4, color.r);
|
||
|
|
CP_WRITE(pjBase, DWG_DR8, color.g);
|
||
|
|
CP_WRITE(pjBase, DWG_DR12, color.b);
|
||
|
|
|
||
|
|
// Set all deltas to 0
|
||
|
|
|
||
|
|
CP_WRITE(pjBase, DWG_DR2, 0);
|
||
|
|
CP_WRITE(pjBase, DWG_DR3, 0);
|
||
|
|
|
||
|
|
CP_WRITE(pjBase, DWG_DR6, 0);
|
||
|
|
CP_WRITE(pjBase, DWG_DR7, 0);
|
||
|
|
|
||
|
|
CP_WRITE(pjBase, DWG_DR10, 0);
|
||
|
|
CP_WRITE(pjBase, DWG_DR11, 0);
|
||
|
|
|
||
|
|
CP_WRITE(pjBase, DWG_DR14, 0);
|
||
|
|
CP_WRITE(pjBase, DWG_DR15, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
CHECK_FIFO_SPACE(pjBase, 4);
|
||
|
|
|
||
|
|
CP_WRITE(pjBase, DWG_CYTOP,
|
||
|
|
((pMCDSurface->pWnd->clipBoundsRect.top + pRc->hwBufferYBias) * ppdev->cxMemory) +
|
||
|
|
ppdev->ulYDstOrg);
|
||
|
|
CP_WRITE(pjBase, DWG_CXLEFT, pMCDSurface->pWnd->clipBoundsRect.left);
|
||
|
|
CP_WRITE(pjBase, DWG_CXRIGHT, pMCDSurface->pWnd->clipBoundsRect.right - 1);
|
||
|
|
CP_WRITE(pjBase, DWG_CYBOT,
|
||
|
|
((pMCDSurface->pWnd->clipBoundsRect.bottom + pRc->hwBufferYBias - 1) * ppdev->cxMemory) +
|
||
|
|
ppdev->ulYDstOrg);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
__inline void HW_FILL_RECT(MCDSURFACE *pMCDSurface, DEVRC *pRc, RECTL *pRecl)
|
||
|
|
{
|
||
|
|
PDEV *ppdev = (PDEV *)pMCDSurface->pso->dhpdev;
|
||
|
|
BYTE *pjBase = ppdev->pjBase;
|
||
|
|
|
||
|
|
//MCDBG_PRINT("fill rect = %d, %d, %d, %d", pRecl->left,
|
||
|
|
// pRecl->top,
|
||
|
|
// pRecl->right,
|
||
|
|
// pRecl->bottom);
|
||
|
|
|
||
|
|
CHECK_FIFO_SPACE(pjBase, 5);
|
||
|
|
CP_WRITE(pjBase, DWG_YDST, pRecl->top - pRc->hwYOrgBias);
|
||
|
|
CP_WRITE(pjBase, DWG_YDST, pRecl->top - pRc->hwYOrgBias);
|
||
|
|
CP_WRITE(pjBase, DWG_FXLEFT, pRecl->left);
|
||
|
|
CP_WRITE(pjBase, DWG_LEN, pRecl->bottom - pRecl->top);
|
||
|
|
CP_START(pjBase, DWG_FXRIGHT, pRecl->right);
|
||
|
|
}
|
||
|
|
|
||
|
|
__inline void HW_START_SWAP_BUFFERS(MCDSURFACE *pMCDSurface,
|
||
|
|
LONG *hwBufferYBias,
|
||
|
|
ULONG flags)
|
||
|
|
{
|
||
|
|
PDEV *ppdev = (PDEV *)pMCDSurface->pso->dhpdev;
|
||
|
|
BYTE *pjBase = ppdev->pjBase;
|
||
|
|
DEVWND *pDevWnd = (DEVWND *)(pMCDSurface->pWnd->pvUser);
|
||
|
|
|
||
|
|
CHECK_FIFO_SPACE(pjBase, 4);
|
||
|
|
CP_WRITE(pjBase, DWG_DWGCTL, opcode_BITBLT + atype_RPL + blockm_OFF +
|
||
|
|
bltmod_BFCOL + pattern_OFF + transc_BG_OPAQUE +
|
||
|
|
bop_SRCCOPY);
|
||
|
|
CP_WRITE(pjBase, DWG_SHIFT, 0);
|
||
|
|
CP_WRITE(pjBase, DWG_SGN, 0);
|
||
|
|
CP_WRITE(pjBase, DWG_AR5, ppdev->cxMemory);
|
||
|
|
|
||
|
|
if (ppdev->pohBackBuffer == pDevWnd->pohBackBuffer) {
|
||
|
|
*hwBufferYBias = pDevWnd->backBufferY;
|
||
|
|
} else {
|
||
|
|
*hwBufferYBias = pDevWnd->backBufferY -
|
||
|
|
pMCDSurface->pWnd->clipBoundsRect.top;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void SETUPTRIANGLEDRAWING(MCDSURFACE *pMCDSurface, MCDRC *pMCDRc);
|
||
|
|
void DrawTriangle(MCDSURFACE *pMCDSurface, MCDRC *pMCDRc,
|
||
|
|
MCDVERTEX *pMCDVertex);
|
||
|
|
|
||
|
|
// External declarations
|
||
|
|
|
||
|
|
void FASTCALL __HWDrawTrap(DEVRC *pRc, MCDFLOAT dxLeft, MCDFLOAT dxRight,
|
||
|
|
LONG y, LONG dy);
|
||
|
|
VOID FASTCALL __HWSetupDeltas(DEVRC *pRc);
|
||
|
|
BOOL HWAllocResources(MCDWINDOW *pMCDWnd, SURFOBJ *pso, BOOL zEnabled,
|
||
|
|
BOOL backBufferEnabled);
|
||
|
|
VOID HWUpdateBufferPos(MCDWINDOW *pMCDWnd, SURFOBJ *pso, BOOL bForce);
|
||
|
|
VOID HWFreeResources(MCDWINDOW *pMCDWnd, SURFOBJ *pso);
|
||
|
|
VOID vMilCopyBlt3D(PDEV* ppdev, POINTL* pptlSrc, RECTL* prclDst);
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* _MCDUTIL_H */
|