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