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517 lines
13 KiB
517 lines
13 KiB
/******************************Module*Header*******************************\
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* Module Name: bitblt.c
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*
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* XGA bitblit accelerations
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*
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* Copyright (c) 1992 Microsoft Corporation
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*
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\**************************************************************************/
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#include "driver.h"
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BOOL bSpecialBlits(
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SURFOBJ *psoTrg,
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SURFOBJ *psoSrc,
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SURFOBJ *psoMask,
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CLIPOBJ *pco,
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XLATEOBJ *pxlo,
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RECTL *prclTrg,
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POINTL *pptlSrc,
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POINTL *pptlMask,
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BRUSHOBJ *pbo,
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POINTL *pptlBrush,
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ROP4 rop4
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);
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BOOL bScrnToScrnCpy(
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SURFOBJ *psoTrg,
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SURFOBJ *psoSrc,
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SURFOBJ *psoMask,
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CLIPOBJ *pco,
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XLATEOBJ *pxlo,
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RECTL *prclTrg,
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POINTL *pptlSrc,
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POINTL *pptlMask,
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BRUSHOBJ *pbo,
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POINTL *pptlBrush,
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ROP4 rop4
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);
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BOOL bSolidPattern(
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SURFOBJ *psoTrg,
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SURFOBJ *psoSrc,
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SURFOBJ *psoMask,
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CLIPOBJ *pco,
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XLATEOBJ *pxlo,
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RECTL *prclTrg,
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POINTL *pptlSrc,
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POINTL *pptlMask,
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BRUSHOBJ *pbo,
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POINTL *pptlBrush,
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ROP4 rop4
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);
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/******************************Public*Data*********************************\
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* ROP translation table
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*
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* Translates the usual ternary rop into A-vector notation. Each bit in
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* this new notation corresponds to a term in a polynomial translation of
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* the rop.
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*
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* Rop(D,S,P) = a + a D + a S + a P + a DS + a DP + a SP + a DSP
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* 0 d s p ds dp sp dsp
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*
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\**************************************************************************/
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BYTE gajRop[] =
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{
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0x00, 0xff, 0xb2, 0x4d, 0xd4, 0x2b, 0x66, 0x99,
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0x90, 0x6f, 0x22, 0xdd, 0x44, 0xbb, 0xf6, 0x09,
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0xe8, 0x17, 0x5a, 0xa5, 0x3c, 0xc3, 0x8e, 0x71,
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0x78, 0x87, 0xca, 0x35, 0xac, 0x53, 0x1e, 0xe1,
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0xa0, 0x5f, 0x12, 0xed, 0x74, 0x8b, 0xc6, 0x39,
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0x30, 0xcf, 0x82, 0x7d, 0xe4, 0x1b, 0x56, 0xa9,
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0x48, 0xb7, 0xfa, 0x05, 0x9c, 0x63, 0x2e, 0xd1,
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0xd8, 0x27, 0x6a, 0x95, 0x0c, 0xf3, 0xbe, 0x41,
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0xc0, 0x3f, 0x72, 0x8d, 0x14, 0xeb, 0xa6, 0x59,
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0x50, 0xaf, 0xe2, 0x1d, 0x84, 0x7b, 0x36, 0xc9,
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0x28, 0xd7, 0x9a, 0x65, 0xfc, 0x03, 0x4e, 0xb1,
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0xb8, 0x47, 0x0a, 0xf5, 0x6c, 0x93, 0xde, 0x21,
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0x60, 0x9f, 0xd2, 0x2d, 0xb4, 0x4b, 0x06, 0xf9,
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0xf0, 0x0f, 0x42, 0xbd, 0x24, 0xdb, 0x96, 0x69,
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0x88, 0x77, 0x3a, 0xc5, 0x5c, 0xa3, 0xee, 0x11,
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0x18, 0xe7, 0xaa, 0x55, 0xcc, 0x33, 0x7e, 0x81,
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0x80, 0x7f, 0x32, 0xcd, 0x54, 0xab, 0xe6, 0x19,
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0x10, 0xef, 0xa2, 0x5d, 0xc4, 0x3b, 0x76, 0x89,
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0x68, 0x97, 0xda, 0x25, 0xbc, 0x43, 0x0e, 0xf1,
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0xf8, 0x07, 0x4a, 0xb5, 0x2c, 0xd3, 0x9e, 0x61,
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0x20, 0xdf, 0x92, 0x6d, 0xf4, 0x0b, 0x46, 0xb9,
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0xb0, 0x4f, 0x02, 0xfd, 0x64, 0x9b, 0xd6, 0x29,
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0xc8, 0x37, 0x7a, 0x85, 0x1c, 0xe3, 0xae, 0x51,
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0x58, 0xa7, 0xea, 0x15, 0x8c, 0x73, 0x3e, 0xc1,
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0x40, 0xbf, 0xf2, 0x0d, 0x94, 0x6b, 0x26, 0xd9,
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0xd0, 0x2f, 0x62, 0x9d, 0x04, 0xfb, 0xb6, 0x49,
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0xa8, 0x57, 0x1a, 0xe5, 0x7c, 0x83, 0xce, 0x31,
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0x38, 0xc7, 0x8a, 0x75, 0xec, 0x13, 0x5e, 0xa1,
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0xe0, 0x1f, 0x52, 0xad, 0x34, 0xcb, 0x86, 0x79,
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0x70, 0x8f, 0xc2, 0x3d, 0xa4, 0x5b, 0x16, 0xe9,
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0x08, 0xf7, 0xba, 0x45, 0xdc, 0x23, 0x6e, 0x91,
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0x98, 0x67, 0x2a, 0xd5, 0x4c, 0xb3, 0xfe, 0x01
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};
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/*****************************************************************************
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* XGA DrvBitBlt
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****************************************************************************/
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BOOL DrvBitBlt(
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SURFOBJ *psoTrg,
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SURFOBJ *psoSrc,
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SURFOBJ *psoMask,
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CLIPOBJ *pco,
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XLATEOBJ *pxlo,
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RECTL *prclTrg,
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POINTL *pptlSrc,
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POINTL *pptlMask,
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BRUSHOBJ *pbo,
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POINTL *pptlBrush,
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ROP4 rop4)
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{
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BOOL b;
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b = bSpecialBlits(psoTrg, psoSrc, psoMask,
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pco, pxlo,
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prclTrg, pptlSrc, pptlMask,
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pbo, pptlBrush,
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rop4);
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if (b == TRUE)
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{
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return (TRUE);
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}
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if ((psoTrg) && (psoTrg->iType == STYPE_DEVICE))
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psoTrg = ((PPDEV)(psoTrg->dhpdev))->pSurfObj;
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if ((psoSrc) && (psoSrc->iType == STYPE_DEVICE))
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psoSrc = ((PPDEV)(psoSrc->dhpdev))->pSurfObj;
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EngBitBlt(psoTrg,
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psoSrc,
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psoMask,
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pco,
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pxlo,
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prclTrg,
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pptlSrc,
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pptlMask,
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pbo,
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pptlBrush,
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rop4);
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}
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/*****************************************************************************
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* XGA Special case Blit handler
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*
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* Returns TRUE if the blit was handled.
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****************************************************************************/
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BOOL bSpecialBlits(
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SURFOBJ *psoTrg,
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SURFOBJ *psoSrc,
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SURFOBJ *psoMask,
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CLIPOBJ *pco,
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XLATEOBJ *pxlo,
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RECTL *prclTrg,
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POINTL *pptlSrc,
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POINTL *pptlMask,
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BRUSHOBJ *pbo,
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POINTL *pptlBrush,
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ROP4 rop4)
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{
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BOOL b;
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HSURF hsurfSrc, hsurfTrg;
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b = FALSE;
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DISPDBG((3, "XGA.DLL!bSpecialBlits - rop4: %8.8X\n", rop4));
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DISPDBG((3, "XGA.DLL!bSpecialBlits - pbo : %8.8X\n", pbo));
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// Wait for the coprocessor.
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vWaitForCoProcessor((PPDEV)psoTrg->dhpdev, 100);
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// NOTE: If the ForeRop and BackRop are the same implicitly
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// there is no mask.
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// First test for a screen to screen copy.
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if (rop4 == 0x0000CCCC)
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{
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if (psoTrg != NULL)
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hsurfTrg = psoTrg->hsurf;
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if (psoSrc != NULL)
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hsurfSrc = psoSrc->hsurf;
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if (hsurfTrg == hsurfSrc)
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{
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if (((PPDEV)psoTrg->dhpdev)->ulfBlitAccelerations_debug & SCRN_TO_SCRN_CPY)
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{
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b = bScrnToScrnCpy(psoTrg, psoSrc, psoMask,
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pco, pxlo,
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prclTrg, pptlSrc, pptlMask,
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pbo, pptlBrush,
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rop4);
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}
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else
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{
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b = FALSE;
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}
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}
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}
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// Check for a Solid Brush.
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if (rop4 == 0x0000F0F0)
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{
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if (pbo->iSolidColor != -1)
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{
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if (((PPDEV)psoTrg->dhpdev)->ulfBlitAccelerations_debug & SOLID_PATTERN)
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{
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b = bSolidPattern(psoTrg, psoSrc, psoMask,
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pco, pxlo,
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prclTrg, pptlSrc, pptlMask,
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pbo, pptlBrush,
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rop4);
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}
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else
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{
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b = FALSE;
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}
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}
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}
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return (b);
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}
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/*****************************************************************************
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* XGA Screen to Screen Copy
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*
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* Returns TRUE if the blit was handled.
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****************************************************************************/
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BOOL bScrnToScrnCpy(
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SURFOBJ *psoTrg,
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SURFOBJ *psoSrc,
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SURFOBJ *psoMask,
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CLIPOBJ *pco,
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XLATEOBJ *pxlo,
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RECTL *prclTrg,
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POINTL *pptlSrc,
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POINTL *pptlMask,
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BRUSHOBJ *pbo,
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POINTL *pptlBrush,
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ROP4 rop4)
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{
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BOOL b;
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INT width,
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height,
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xTrg,
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yTrg,
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xSrc,
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ySrc;
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ULONG ulDirCode,
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XGAPixelOp,
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ulXgaMask;
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PXGACPREGS pXgaCpRegs = ((PPDEV)psoTrg->dhpdev)->pXgaCpRegs;
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// Important Note: When we get time we should test the Coprocessor
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// for being busy. If its not then we should execute the code here.
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// If it is busy we should queue the request. This implies an
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// interrupt driven XGA.
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b = bSetXgaClipping((PPDEV)psoTrg->dhpdev, pco, &ulXgaMask);
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if (b == FALSE)
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return (b);
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// Setup the BitBlt parameters.
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width = (prclTrg->right - prclTrg->left) - 1;
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height = (prclTrg->bottom - prclTrg->top) - 1;
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// We need to determine the direction of the blit.
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ulDirCode = 0;
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xTrg = prclTrg->left;
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yTrg = prclTrg->top;
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xSrc = pptlSrc->x;
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ySrc = pptlSrc->y;
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// The horizontal copy direction.
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if (prclTrg->left > pptlSrc->x)
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{
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// R to L
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xTrg = prclTrg->right - 1;
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xSrc = pptlSrc->x + width;
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ulDirCode |= OCT_DX;
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}
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// The vertical copy direction.
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if (prclTrg->top > pptlSrc->y)
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{
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// B to T
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yTrg = prclTrg->bottom - 1;
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ySrc = pptlSrc->y + height;
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ulDirCode |= OCT_DY;
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}
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pXgaCpRegs->XGAOpDim1 = width;
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pXgaCpRegs->XGAOpDim2 = height;
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pXgaCpRegs->XGASourceMapX = xSrc;
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pXgaCpRegs->XGASourceMapY = ySrc;
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pXgaCpRegs->XGADestMapX = xTrg;
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pXgaCpRegs->XGADestMapY = yTrg;
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pXgaCpRegs->XGAForeGrMix = XGA_S;
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pXgaCpRegs->XGABackGrMix = XGA_S;
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// Now build the Pel Operation Register Op Code;
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XGAPixelOp = BS_SRC_PEL_MAP | FS_SRC_PEL_MAP |
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STEP_PX_BLT |
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SRC_PEL_MAP_A | DST_PEL_MAP_A |
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PATT_FOREGROUND;
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XGAPixelOp |= ulDirCode;
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XGAPixelOp |= ulXgaMask;
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pXgaCpRegs->XGAPixelOp = XGAPixelOp;
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return (TRUE);
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}
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/*****************************************************************************
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* XGA Solid Pattern
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*
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* Returns TRUE if the blit was handled.
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****************************************************************************/
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BOOL bSolidPattern(
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SURFOBJ *psoTrg,
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SURFOBJ *psoSrc,
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SURFOBJ *psoMask,
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CLIPOBJ *pco,
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XLATEOBJ *pxlo,
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RECTL *prclTrg,
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POINTL *pptlSrc,
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POINTL *pptlMask,
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BRUSHOBJ *pbo,
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POINTL *pptlBrush,
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ROP4 rop4)
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{
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BOOL b;
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INT width,
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height;
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ULONG XGAPixelOp,
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ulXgaMask;
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PXGACPREGS pXgaCpRegs = ((PPDEV)psoTrg->dhpdev)->pXgaCpRegs;
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DISPDBG((2, "XGA.DLL!bSolidPattern - Entry\n"));
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b = bSetXgaClipping((PPDEV)psoTrg->dhpdev,pco, &ulXgaMask);
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if (b == FALSE)
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return (b);
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// Setup the BitBlt parameters.
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width = (prclTrg->right - prclTrg->left) - 1;
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height = (prclTrg->bottom - prclTrg->top) - 1;
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pXgaCpRegs->XGAOpDim1 = width;
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pXgaCpRegs->XGAOpDim2 = height;
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pXgaCpRegs->XGADestMapX = (USHORT) prclTrg->left;
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pXgaCpRegs->XGADestMapY = (USHORT) prclTrg->top;
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pXgaCpRegs->XGAForeGrMix = XGA_S;
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pXgaCpRegs->XGABackGrMix = XGA_S;
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pXgaCpRegs->XGAForeGrColorReg = pbo->iSolidColor;
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pXgaCpRegs->XGABackGrColorReg = pbo->iSolidColor;
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// Now build the Pel Operation Register Op Code;
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XGAPixelOp = BS_BACK_COLOR | FS_FORE_COLOR |
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STEP_PX_BLT |
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SRC_PEL_MAP_A | DST_PEL_MAP_A |
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PATT_FOREGROUND;
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XGAPixelOp |= ulXgaMask;
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pXgaCpRegs->XGAPixelOp = XGAPixelOp;
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return (TRUE);
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}
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/*****************************************************************************
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* XGA DrvCopyBits
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****************************************************************************/
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BOOL DrvCopyBits(
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SURFOBJ *psoDest,
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SURFOBJ *psoSrc,
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CLIPOBJ *pco,
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XLATEOBJ *pxlo,
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RECTL *prclDest,
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POINTL *pptlSrc)
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{
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BOOL b;
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CLIPOBJ coLocal;
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SURFOBJ *pso;
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DISPDBG((2, "XGA.DLL: DrvCopyBits - Entry\n"));
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// Need to determine which surface is the display.
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// So we can pickup the address of the XGA coprocessor regs.
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if ((psoDest) && (psoDest->iType == STYPE_DEVICE))
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pso = psoDest;
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else if ((psoSrc) && (psoSrc->iType == STYPE_DEVICE))
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pso = psoSrc;
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else
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{
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RIP ("XGA.DLL!DrvCopyBits - neither surface is a device surface\n");
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return (TRUE);
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}
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// Wait for the coprocessor.
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vWaitForCoProcessor((PPDEV)pso->dhpdev, 100);
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// Protect this routine from a potentially NULL clip object
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if (pco == NULL)
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{
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coLocal.iDComplexity = DC_RECT;
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coLocal.rclBounds.left = 0;
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coLocal.rclBounds.top = 0;
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coLocal.rclBounds.right = ((PPDEV)pso->dhpdev)->cxScreen;
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coLocal.rclBounds.bottom = ((PPDEV)pso->dhpdev)->cyScreen;
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pco = &coLocal;
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}
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// Check for a Screen to Screen or a Host to Screen blit.
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b = FALSE;
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if ((psoDest->iType == STYPE_DEVICE) &&
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(psoSrc->iType == STYPE_DEVICE) &&
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(((PPDEV)psoDest->dhpdev)->ulfBlitAccelerations_debug & SCRN_TO_SCRN_CPY))
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{
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b = bScrnToScrnCpy(psoDest,
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psoSrc,
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NULL,
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pco,
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pxlo,
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prclDest,
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pptlSrc,
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NULL,
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NULL,
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NULL,
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0xcccc);
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}
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if (b == FALSE)
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{
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if ((psoDest) && (psoDest->iType == STYPE_DEVICE))
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psoDest = ((PPDEV)(psoDest->dhpdev))->pSurfObj;
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if ((psoSrc) && (psoSrc->iType == STYPE_DEVICE))
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psoSrc = ((PPDEV)(psoSrc->dhpdev))->pSurfObj;
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|
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EngCopyBits(psoDest,
|
|
psoSrc,
|
|
pco,
|
|
pxlo,
|
|
prclDest,
|
|
pptlSrc);
|
|
|
|
}
|
|
|
|
return (TRUE);
|
|
|
|
}
|