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windows-xp/Source/XPSP1/NT/drivers/video/ms/ati/disp/misc.c

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/******************************Module*Header*******************************\
* Module Name: misc.c
*
* Miscellaneous common routines.
*
* Copyright (c) 1992-1995 Microsoft Corporation
*
\**************************************************************************/
#include "precomp.h"
/******************************Public*Table********************************\
* ULONG gaul32HwMixFromRop2[]
*
* Table to convert from a Source and Destination Rop2 to the Mach32's
* hardware mix.
\**************************************************************************/
ULONG gaul32HwMixFromRop2[] = {
LOGICAL_0, // 00 -- 0 BLACKNESS
NOT_SCREEN_AND_NOT_NEW, // 11 -- DSon NOTSRCERASE
SCREEN_AND_NOT_NEW, // 22 -- DSna
NOT_NEW, // 33 -- Sn NOSRCCOPY
NOT_SCREEN_AND_NEW, // 44 -- SDna SRCERASE
NOT_SCREEN, // 55 -- Dn DSTINVERT
SCREEN_XOR_NEW, // 66 -- DSx SRCINVERT
NOT_SCREEN_OR_NOT_NEW, // 77 -- DSan
SCREEN_AND_NEW, // 88 -- DSa SRCAND
NOT_SCREEN_XOR_NEW, // 99 -- DSxn
LEAVE_ALONE, // AA -- D
SCREEN_OR_NOT_NEW, // BB -- DSno MERGEPAINT
OVERPAINT, // CC -- S SRCCOPY
NOT_SCREEN_OR_NEW, // DD -- SDno
SCREEN_OR_NEW, // EE -- DSo SRCPAINT
LOGICAL_1 // FF -- 1 WHITENESS
};
/******************************Public*Table********************************\
* ULONG gaul32HwMixFromMix[]
*
* Table to convert from a GDI mix value to the Mach32's hardware mix.
*
* Ordered so that the mix may be calculated from gaul32HwMixFromMix[mix & 0xf]
* or gaul32HwMixFromMix[mix & 0xff].
\**************************************************************************/
ULONG gaul32HwMixFromMix[] = {
LOGICAL_1, // 0 -- 1
LOGICAL_0, // 1 -- 0
NOT_SCREEN_AND_NOT_NEW, // 2 -- DPon
SCREEN_AND_NOT_NEW, // 3 -- DPna
NOT_NEW, // 4 -- Pn
NOT_SCREEN_AND_NEW, // 5 -- PDna
NOT_SCREEN, // 6 -- Dn
SCREEN_XOR_NEW, // 7 -- DPx
NOT_SCREEN_OR_NOT_NEW, // 8 -- DPan
SCREEN_AND_NEW, // 9 -- DPa
NOT_SCREEN_XOR_NEW, // 10 -- DPxn
LEAVE_ALONE, // 11 -- D
SCREEN_OR_NOT_NEW, // 12 -- DPno
OVERPAINT, // 13 -- P
NOT_SCREEN_OR_NEW, // 14 -- PDno
SCREEN_OR_NEW, // 15 -- DPo
LOGICAL_1 // 16 -- 1
};
/******************************Public*Table********************************\
* ULONG gaul64HwMixFromRop2[]
*
* Table to convert from a Source and Destination Rop2 to the Mach64's
* foreground hardware mix.
\**************************************************************************/
ULONG gaul64HwMixFromRop2[] = {
LOGICAL_0 << 16, // 00 -- 0 BLACKNESS
NOT_SCREEN_AND_NOT_NEW << 16, // 11 -- DSon NOTSRCERASE
SCREEN_AND_NOT_NEW << 16, // 22 -- DSna
NOT_NEW << 16, // 33 -- Sn NOSRCCOPY
NOT_SCREEN_AND_NEW << 16, // 44 -- SDna SRCERASE
NOT_SCREEN << 16, // 55 -- Dn DSTINVERT
SCREEN_XOR_NEW << 16, // 66 -- DSx SRCINVERT
NOT_SCREEN_OR_NOT_NEW << 16, // 77 -- DSan
SCREEN_AND_NEW << 16, // 88 -- DSa SRCAND
NOT_SCREEN_XOR_NEW << 16, // 99 -- DSxn
LEAVE_ALONE << 16, // AA -- D
SCREEN_OR_NOT_NEW << 16, // BB -- DSno MERGEPAINT
OVERPAINT << 16, // CC -- S SRCCOPY
NOT_SCREEN_OR_NEW << 16, // DD -- SDno
SCREEN_OR_NEW << 16, // EE -- DSo SRCPAINT
LOGICAL_1 << 16 // FF -- 1 WHITENESS
};
/******************************Public*Table********************************\
* ULONG gaul64HwMixFromMix[]
*
* Table to convert from a GDI mix value to the Mach64's foreground hardware
* mix.
*
* Ordered so that the mix may be calculated from gaul64HwMixFromMix[mix & 0xf]
* or gaul64HwMixFromMix[mix & 0xff].
\**************************************************************************/
ULONG gaul64HwMixFromMix[] = {
LOGICAL_1 << 16, // 0 -- 1
LOGICAL_0 << 16, // 1 -- 0
NOT_SCREEN_AND_NOT_NEW << 16, // 2 -- DPon
SCREEN_AND_NOT_NEW << 16, // 3 -- DPna
NOT_NEW << 16, // 4 -- Pn
NOT_SCREEN_AND_NEW << 16, // 5 -- PDna
NOT_SCREEN << 16, // 6 -- Dn
SCREEN_XOR_NEW << 16, // 7 -- DPx
NOT_SCREEN_OR_NOT_NEW << 16, // 8 -- DPan
SCREEN_AND_NEW << 16, // 9 -- DPa
NOT_SCREEN_XOR_NEW << 16, // 10 -- DPxn
LEAVE_ALONE << 16, // 11 -- D
SCREEN_OR_NOT_NEW << 16, // 12 -- DPno
OVERPAINT << 16, // 13 -- P
NOT_SCREEN_OR_NEW << 16, // 14 -- PDno
SCREEN_OR_NEW << 16, // 15 -- DPo
LOGICAL_1 << 16 // 16 -- 1
};
/******************************Public*Data*********************************\
* MIX translation table
*
* Translates a mix 1-16, into an old style Rop 0-255.
*
\**************************************************************************/
BYTE gaRop3FromMix[] =
{
0xFF, // R2_WHITE - Allow rop = gaRop3FromMix[mix & 0x0F]
0x00, // R2_BLACK
0x05, // R2_NOTMERGEPEN
0x0A, // R2_MASKNOTPEN
0x0F, // R2_NOTCOPYPEN
0x50, // R2_MASKPENNOT
0x55, // R2_NOT
0x5A, // R2_XORPEN
0x5F, // R2_NOTMASKPEN
0xA0, // R2_MASKPEN
0xA5, // R2_NOTXORPEN
0xAA, // R2_NOP
0xAF, // R2_MERGENOTPEN
0xF0, // R2_COPYPEN
0xF5, // R2_MERGEPENNOT
0xFA, // R2_MERGEPEN
0xFF // R2_WHITE - Allow rop = gaRop3FromMix[mix & 0xFF]
};
/******************************Public*Routine******************************\
* BOOL bIntersect
*
* If 'prcl1' and 'prcl2' intersect, has a return value of TRUE and returns
* the intersection in 'prclResult'. If they don't intersect, has a return
* value of FALSE, and 'prclResult' is undefined.
*
\**************************************************************************/
BOOL bIntersect(
RECTL* prcl1,
RECTL* prcl2,
RECTL* prclResult)
{
prclResult->left = max(prcl1->left, prcl2->left);
prclResult->right = min(prcl1->right, prcl2->right);
if (prclResult->left < prclResult->right)
{
prclResult->top = max(prcl1->top, prcl2->top);
prclResult->bottom = min(prcl1->bottom, prcl2->bottom);
if (prclResult->top < prclResult->bottom)
{
return(TRUE);
}
}
return(FALSE);
}
/******************************Public*Routine******************************\
* LONG cIntersect
*
* This routine takes a list of rectangles from 'prclIn' and clips them
* in-place to the rectangle 'prclClip'. The input rectangles don't
* have to intersect 'prclClip'; the return value will reflect the
* number of input rectangles that did intersect, and the intersecting
* rectangles will be densely packed.
*
\**************************************************************************/
LONG cIntersect(
RECTL* prclClip,
RECTL* prclIn, // List of rectangles
LONG c) // Can be zero
{
LONG cIntersections;
RECTL* prclOut;
cIntersections = 0;
prclOut = prclIn;
for (; c != 0; prclIn++, c--)
{
prclOut->left = max(prclIn->left, prclClip->left);
prclOut->right = min(prclIn->right, prclClip->right);
if (prclOut->left < prclOut->right)
{
prclOut->top = max(prclIn->top, prclClip->top);
prclOut->bottom = min(prclIn->bottom, prclClip->bottom);
if (prclOut->top < prclOut->bottom)
{
prclOut++;
cIntersections++;
}
}
}
return(cIntersections);
}
/******************************Public*Routine******************************\
* VOID vResetClipping
\**************************************************************************/
VOID vResetClipping(
PDEV* ppdev)
{
BYTE* pjMmBase;
BYTE* pjIoBase;
if (ppdev->iMachType == MACH_MM_64)
{
pjMmBase = ppdev->pjMmBase;
M64_CHECK_FIFO_SPACE(ppdev, pjMmBase, 2);
M64_OD(pjMmBase, SC_LEFT_RIGHT, PACKPAIR(0, M64_MAX_SCISSOR_R));
M64_OD(pjMmBase, SC_TOP_BOTTOM, PACKPAIR(0, ppdev->cyMemory));
}
else if (ppdev->iMachType == MACH_MM_32)
{
pjMmBase = ppdev->pjMmBase;
M32_CHECK_FIFO_SPACE(ppdev, pjMmBase, 4);
M32_OW(pjMmBase, EXT_SCISSOR_L, 0);
M32_OW(pjMmBase, EXT_SCISSOR_R, M32_MAX_SCISSOR);
M32_OW(pjMmBase, EXT_SCISSOR_T, 0);
M32_OW(pjMmBase, EXT_SCISSOR_B, M32_MAX_SCISSOR);
}
else
{
pjIoBase = ppdev->pjIoBase;
I32_CHECK_FIFO_SPACE(ppdev, pjIoBase, 4);
I32_OW(pjIoBase, EXT_SCISSOR_L, 0);
I32_OW(pjIoBase, EXT_SCISSOR_R, M32_MAX_SCISSOR);
I32_OW(pjIoBase, EXT_SCISSOR_T, 0);
I32_OW(pjIoBase, EXT_SCISSOR_B, M32_MAX_SCISSOR);
}
}
/******************************Public*Routine******************************\
* VOID vSetClipping
\**************************************************************************/
VOID vSetClipping(
PDEV* ppdev,
RECTL* prclClip) // In relative coordinates
{
LONG xOffset;
LONG yOffset;
BYTE* pjMmBase;
BYTE* pjIoBase;
xOffset = ppdev->xOffset;
yOffset = ppdev->yOffset;
if (ppdev->iMachType == MACH_MM_64)
{
pjMmBase = ppdev->pjMmBase;
M64_CHECK_FIFO_SPACE(ppdev, pjMmBase, 2);
if (ppdev->iBitmapFormat != BMF_24BPP)
{
M64_OD(pjMmBase, SC_LEFT_RIGHT, PACKPAIR(xOffset + prclClip->left,
xOffset + prclClip->right - 1));
}
else
{
M64_OD(pjMmBase, SC_LEFT_RIGHT, PACKPAIR((xOffset + prclClip->left) * 3,
(xOffset + prclClip->right) * 3 - 1));
}
M64_OD(pjMmBase, SC_TOP_BOTTOM, PACKPAIR(yOffset + prclClip->top,
yOffset + prclClip->bottom - 1));
}
else if (ppdev->iMachType == MACH_MM_32)
{
pjMmBase = ppdev->pjMmBase;
M32_CHECK_FIFO_SPACE(ppdev, pjMmBase, 4);
M32_OW(pjMmBase, EXT_SCISSOR_L, xOffset + prclClip->left);
M32_OW(pjMmBase, EXT_SCISSOR_R, xOffset + prclClip->right - 1);
M32_OW(pjMmBase, EXT_SCISSOR_T, yOffset + prclClip->top);
M32_OW(pjMmBase, EXT_SCISSOR_B, yOffset + prclClip->bottom - 1);
}
else
{
pjIoBase = ppdev->pjIoBase;
I32_CHECK_FIFO_SPACE(ppdev, pjIoBase, 4);
I32_OW(pjIoBase, EXT_SCISSOR_L, xOffset + prclClip->left);
I32_OW(pjIoBase, EXT_SCISSOR_R, xOffset + prclClip->right - 1);
I32_OW(pjIoBase, EXT_SCISSOR_T, yOffset + prclClip->top);
I32_OW(pjIoBase, EXT_SCISSOR_B, yOffset + prclClip->bottom - 1);
}
}
////////////////////////////////////////////////////////////////////////////////
// For mach8 cards only...
//
VOID vI32DataPortIn(PDEV *ppdev, WORD *pw, UINT count)
{
BYTE *pjIoBase = ppdev->pjIoBase;
UINT i;
for (i=0; i < count; i++)
{
*((USHORT UNALIGNED *)pw)++ = I32_IW(pjIoBase, PIX_TRANS);
}
}
VOID vI32GetBits( PDEV *ppdev,
SURFOBJ *psoDst,
RECTL *prclDst,
POINTL *pptlSrc
)
{
LONG xPunt, yPunt,
cxPunt, cyPunt, nwords;
LONG lDeltaDst = psoDst->lDelta;
PBYTE pjPunt, pjIoBase = ppdev->pjIoBase;
PWORD pw;
WORD Cmd;
// pptlSrc gives the starting point on the screen.
xPunt = pptlSrc->x;
yPunt = pptlSrc->y;
// prclDst gives the region size.
cxPunt = prclDst->right - prclDst->left;
cyPunt = prclDst->bottom - prclDst->top;
// Do not optimize for word alignment if prclDst points to beginning of scan.
if ((prclDst->left) && (xPunt & 0x1))
{
xPunt--;
cxPunt++;
pjPunt = (PBYTE) psoDst->pvScan0 + (prclDst->top * lDeltaDst) + prclDst->left - 1;
}
else
pjPunt = (PBYTE) psoDst->pvScan0 + (prclDst->top * lDeltaDst) + prclDst->left;
// Make sure the cx is an even number of words.
if (cxPunt & 0x1)
{
cxPunt++;
}
// Set the engine up for the copy.
Cmd = READ | FG_COLOR_SRC_HOST | DATA_WIDTH | DATA_ORDER | DRAW;
I32_CHECK_FIFO_SPACE(ppdev, pjIoBase, 7);
I32_OW(pjIoBase, DP_CONFIG, Cmd );
I32_OW(pjIoBase, WRT_MASK, 0xffff );
I32_OW(pjIoBase, CUR_X, (SHORT) xPunt );
I32_OW(pjIoBase, CUR_Y, (SHORT) yPunt );
I32_OW(pjIoBase, DEST_X_START, (SHORT) xPunt );
I32_OW(pjIoBase, DEST_X_END, (SHORT) (xPunt + cxPunt) );
I32_OW(pjIoBase, DEST_Y_END, (SHORT) (yPunt + cyPunt) );
// Wait for the Data Available.
while (!(I32_IW(pjIoBase, GE_STAT) & 0x100));
// Now transfer the data from the screen to the host memory bitmap.
pw = (PWORD) pjPunt;
nwords = (cxPunt + 1)/2;
while (cyPunt-- > 0)
{
vI32DataPortIn(ppdev, pw, nwords);
((PBYTE) pw) += lDeltaDst;
}
}
VOID vI32DataPortOut(PDEV *ppdev, WORD *pw, UINT count)
{
BYTE *pjIoBase = ppdev->pjIoBase;
UINT i;
for (i=0; i < count; i++)
{
if (i % 8 == 0)
I32_CHECK_FIFO_SPACE(ppdev, pjIoBase, 10);
I32_OW(pjIoBase, PIX_TRANS, *((USHORT UNALIGNED *)pw)++);
}
}
VOID vI32PutBits( PDEV *ppdev,
SURFOBJ *psoSrc,
RECTL *prclDst,
POINTL *pptlSrc
)
{
BOOL leftScissor = FALSE, rightScissor = FALSE;
LONG xPunt, yPunt,
cxPunt, cyPunt, nwords;
LONG lDeltaSrc = psoSrc->lDelta;
PBYTE pjPunt, pjIoBase = ppdev->pjIoBase;
PWORD pw;
WORD Cmd;
// prclDst gives the starting point on the screen.
xPunt = prclDst->left;
yPunt = prclDst->top;
// prclDst gives the region size.
cxPunt = min( prclDst->right, (LONG) ppdev->cxMemory ) - xPunt;
cyPunt = prclDst->bottom - yPunt;
// Do not optimize for word alignment if pptlSrc points to beginning of scan.
if ((pptlSrc->x) && (xPunt & 0x1))
{
I32_CHECK_FIFO_SPACE(ppdev, pjIoBase, 1);
I32_OW(pjIoBase, EXT_SCISSOR_L, (SHORT) xPunt );
xPunt--;
cxPunt++;
leftScissor = TRUE;
pjPunt = (PBYTE) psoSrc->pvScan0 + (pptlSrc->y * lDeltaSrc) + pptlSrc->x - 1;
}
else
pjPunt = (PBYTE) psoSrc->pvScan0 + (pptlSrc->y * lDeltaSrc) + pptlSrc->x;
// Make sure the cx is an even number of words.
if (cxPunt & 0x1)
{
I32_CHECK_FIFO_SPACE(ppdev, pjIoBase, 1);
I32_OW(pjIoBase, EXT_SCISSOR_R, (SHORT) (xPunt + cxPunt - 1) );
cxPunt++;
rightScissor = TRUE;
}
// Set the engine up for the copy.
Cmd = FG_COLOR_SRC_HOST | DATA_ORDER | DATA_WIDTH | DRAW | WRITE;
I32_CHECK_FIFO_SPACE(ppdev, pjIoBase, 9);
I32_OW(pjIoBase, DP_CONFIG, Cmd );
I32_OW(pjIoBase, WRT_MASK, 0xffff );
I32_OW(pjIoBase, ALU_FG_FN, OVERPAINT );
I32_OW(pjIoBase, ALU_BG_FN, OVERPAINT );
I32_OW(pjIoBase, CUR_X, (SHORT) xPunt );
I32_OW(pjIoBase, CUR_Y, (SHORT) yPunt );
I32_OW(pjIoBase, DEST_X_START, (SHORT) xPunt );
I32_OW(pjIoBase, DEST_X_END, (SHORT) (xPunt + cxPunt) );
I32_OW(pjIoBase, DEST_Y_END, (SHORT) (yPunt + cyPunt) );
// Now transfer the data, from the host memory bitmap to the screen.
pw = (PWORD) pjPunt;
nwords = (cxPunt + 1)/2;
while (cyPunt-- > 0)
{
I32_CHECK_FIFO_SPACE(ppdev, pjIoBase, 1);
vI32DataPortOut(ppdev, pw, nwords);
((PBYTE) pw) += lDeltaSrc;
}
if (leftScissor)
{
I32_CHECK_FIFO_SPACE(ppdev, pjIoBase, 1);
I32_OW(pjIoBase, EXT_SCISSOR_L, 0 );
}
if (rightScissor)
{
I32_CHECK_FIFO_SPACE(ppdev, pjIoBase, 1);
I32_OW(pjIoBase, EXT_SCISSOR_R, (SHORT) M32_MAX_SCISSOR );
}
}
////////////////////////////////////////////////////////////////////////////////
// Context Stuff
//
#define _bit(x) (1 << (x))
#define CONTEXT_ADDR(ppdev,p) (ppdev->pjContextBase - (((p)+1) * 0x100))
#define cxtCONTEXT_MASK 0
#define cxtDST_OFF_PITCH 2
#define cxtDST_Y_X 3
#define cxtDST_HEIGHT_WIDTH 4
#define cxtDST_BRES_ERR 5
#define cxtDST_BRES_INC 6
#define cxtDST_BRES_DEC 7
#define cxtSRC_OFF_PITCH 8
#define cxtSRC_Y_X 9
#define cxtSRC_HEIGHT1_WIDTH1 10
#define cxtSRC_Y_X_START 11
#define cxtSRC_HEIGHT2_WIDTH2 12
#define cxtPAT_REG0 13
#define cxtPAT_REG1 14
#define cxtSC_LEFT_RIGHT 15
#define cxtSC_TOP_BOTTOM 16
#define cxtDP_BKGD_CLR 17
#define cxtDP_FRGD_CLR 18
#define cxtDP_WRITE_MASK 19
#define cxtDP_CHAIN_MASK 20
#define cxtDP_PIX_WIDTH 21
#define cxtDP_MIX 22
#define cxtDP_SRC 23
#define cxtCLR_CMP_CLR 24
#define cxtCLR_CMP_MASK 25
#define cxtCLR_CMP_CNTL 26
#define cxtGUI_TRAJ_CNTL 27
#define cxtCONTEXT_LOAD_CNTL 28
BYTE *ContextBaseAddress(PDEV *ppdev)
{
ULONG context_addr = 0;
DWORD mem_cntl;
mem_cntl = M64_ID(ppdev->pjMmBase, M64_MEM_CNTL);
switch (mem_cntl & 7)
{
case 0:
context_addr = 0x80000; // 512 K
break;
case 1:
context_addr = 0x100000; // 1 M
break;
case 2:
context_addr = 0x200000;
break;
case 3:
context_addr = 0x400000;
break;
case 4:
context_addr = 0x600000;
break;
case 5:
context_addr = 0x800000;
break;
}
return (BYTE *) context_addr;
}
VOID SetContextWorkspace( PDEV *ppdev, DWORD *context_regs,
DWORD context_mask, DWORD context_load_cntl )
{
BYTE* pjMmBase = ppdev->pjMmBase;
INT i;
for (i = 0; i < 64; i++)
context_regs[i] = 0;
context_regs[ 0] = context_mask;
if (context_mask & 0x00000004)
*(context_regs+ 2) = M64_ID(pjMmBase, DST_OFF_PITCH);
if (context_mask & 0x00000008)
*(context_regs+ 3) = M64_ID(pjMmBase, DST_Y_X);
if (context_mask & 0x00000010)
*(context_regs+ 4) = M64_ID(pjMmBase, DST_HEIGHT_WIDTH);
if (context_mask & 0x00000020)
*(context_regs+ 5) = M64_ID(pjMmBase, DST_BRES_ERR);
if (context_mask & 0x00000040)
*(context_regs+ 6) = M64_ID(pjMmBase, DST_BRES_INC);
if (context_mask & 0x00000080)
*(context_regs+ 7) = M64_ID(pjMmBase, DST_BRES_DEC);
if (context_mask & 0x00000100)
*(context_regs+ 8) = M64_ID(pjMmBase, SRC_OFF_PITCH);
if (context_mask & 0x00000200)
*(context_regs+ 9) = M64_ID(pjMmBase, SRC_Y_X);
if (context_mask & 0x00000400)
*(context_regs+10) = M64_ID(pjMmBase, SRC_HEIGHT1_WIDTH1);
if (context_mask & 0x00000800)
*(context_regs+11) = M64_ID(pjMmBase, SRC_Y_X_START);
if (context_mask & 0x00001000)
*(context_regs+12) = M64_ID(pjMmBase, SRC_HEIGHT2_WIDTH2);
if (context_mask & 0x00002000)
*(context_regs+13) = M64_ID(pjMmBase, PAT_REG0);
if (context_mask & 0x00004000)
*(context_regs+14) = M64_ID(pjMmBase, PAT_REG1);
if (context_mask & 0x00008000)
*(context_regs+15) = M64_ID(pjMmBase, SC_LEFT_RIGHT);
if (context_mask & 0x00010000)
*(context_regs+16) = M64_ID(pjMmBase, SC_TOP_BOTTOM);
if (context_mask & 0x00020000)
*(context_regs+17) = M64_ID(pjMmBase, DP_BKGD_CLR);
if (context_mask & 0x00040000)
*(context_regs+18) = M64_ID(pjMmBase, DP_FRGD_CLR);
if (context_mask & 0x00080000)
*(context_regs+19) = M64_ID(pjMmBase, DP_WRITE_MASK);
if (context_mask & 0x00100000)
*(context_regs+20) = M64_ID(pjMmBase, DP_CHAIN_MASK);
if (context_mask & 0x00200000)
*(context_regs+21) = M64_ID(pjMmBase, DP_PIX_WIDTH);
if (context_mask & 0x00400000)
*(context_regs+22) = M64_ID(pjMmBase, DP_MIX);
if (context_mask & 0x00800000)
*(context_regs+23) = M64_ID(pjMmBase, DP_SRC);
if (context_mask & 0x01000000)
*(context_regs+24) = M64_ID(pjMmBase, CLR_CMP_CLR);
if (context_mask & 0x02000000)
*(context_regs+25) = M64_ID(pjMmBase, CLR_CMP_MSK);
if (context_mask & 0x04000000)
*(context_regs+26) = M64_ID(pjMmBase, CLR_CMP_CNTL);
if (context_mask & 0x08000000)
*(context_regs+27) = M64_ID(pjMmBase, GUI_TRAJ_CNTL);
context_regs[28] = context_load_cntl;
}
VOID UploadContext( PDEV *ppdev, DWORD *context_regs, BYTE *context_addr )
{
BYTE* pjMmBase = ppdev->pjMmBase;
M64_CHECK_FIFO_SPACE(ppdev, pjMmBase, 10);
M64_OD(pjMmBase, CLR_CMP_CNTL, 0 );
M64_OD(pjMmBase, SC_LEFT_RIGHT, (255) << 16 );
M64_OD(pjMmBase, SC_TOP_BOTTOM, 0 );
M64_OD(pjMmBase, DP_SRC, DP_SRC_Host << 8 );
M64_OD(pjMmBase, DST_CNTL, DST_CNTL_XDir | DST_CNTL_YDir );
M64_OD(pjMmBase, DP_MIX, OVERPAINT << 16 );
M64_OD(pjMmBase, DP_PIX_WIDTH, DP_PIX_WIDTH_8bpp | (DP_PIX_WIDTH_8bpp << 16) );
M64_OD(pjMmBase, DST_OFF_PITCH,
(ULONG)((ULONG_PTR) context_addr/8 | (256 << 19) ));
M64_OD(pjMmBase, DST_Y_X, 0 );
M64_OD(pjMmBase, DST_HEIGHT_WIDTH, 0x01000001 ); // 256x1
vM64DataPortOutB(ppdev, (BYTE *)context_regs, 256);
M64_CHECK_FIFO_SPACE(ppdev, pjMmBase, 4);
M64_OD(pjMmBase, DST_OFF_PITCH, ppdev->ulScreenOffsetAndPitch );
M64_OD(pjMmBase, DP_PIX_WIDTH, ppdev->ulMonoPixelWidth );
M64_OD(pjMmBase, SC_LEFT_RIGHT, M64_MAX_SCISSOR_R << 16 );
M64_OD(pjMmBase, SC_TOP_BOTTOM, ppdev->cyMemory << 16 );
}
VOID vSetDefaultContext(PDEV * ppdev)
{
DWORD work_context [64];
SetContextWorkspace( ppdev, work_context,
_bit(cxtCONTEXT_MASK) |
_bit(cxtDP_WRITE_MASK) |
_bit(cxtCLR_CMP_CNTL) |
_bit(cxtGUI_TRAJ_CNTL),
0);
// Fix vanishing text and fills, as well as other color problems:
work_context[cxtDP_WRITE_MASK] = 0xFFFFFFFF;
work_context[cxtCLR_CMP_CNTL] = 0;
// Fix frizzy text and RGB ordering problems:
work_context[cxtGUI_TRAJ_CNTL] = DST_CNTL_XDir | DST_CNTL_YDir;
UploadContext( ppdev, work_context, CONTEXT_ADDR(ppdev,ppdev->iDefContext) );
}
VOID vEnableContexts(PDEV * ppdev)
{
ppdev->pjContextBase = ContextBaseAddress(ppdev);
if (ppdev->cjBank == (LONG)((ULONG_PTR)ppdev->pjContextBase))
ppdev->ulContextCeiling =(ULONG)((ULONG_PTR)ppdev->pjContextBase - 1024);
else
ppdev->ulContextCeiling = (ULONG)((ULONG_PTR) ppdev->pjContextBase);
// Compute ALL context pointers needed in the driver.
ppdev->iDefContext = (ULONG)((ULONG_PTR)ppdev->pjContextBase
- (ULONG_PTR)ppdev->ulContextCeiling)/256;
ppdev->ulContextCeiling -= 256;
// In general, you need to check whether a context allocation will decrease
// cyMemory. Here, we only have the one and FIRST allocation, so decrement cyMemory.
ppdev->cyMemory--;
}
////////////////////////////////////////////////////////////////////////////////
// DataPortOutB routine for the mach64
//
VOID vM64DataPortOutB(PDEV *ppdev, PBYTE pb, UINT count)
{
PBYTE pjMmBase = ppdev->pjMmBase;
UINT i, DWLeft, LastBytes;
DWORD UNALIGNED *pdw;
PBYTE Byte_in_Dword;
DWORD Buffer;
#define THRESH 14
pdw = (DWORD*)pb;
DWLeft = (count + 3)/4;
LastBytes = count % 4;
while ( DWLeft > 0 )
{
if (DWLeft < THRESH || (DWLeft == THRESH && LastBytes != 0))
{
M64_CHECK_FIFO_SPACE(ppdev, pjMmBase, DWLeft);
if (LastBytes > 0)
{
for (i=0; i< DWLeft-1 ; i++)
M64_OD(pjMmBase, HOST_DATA0, *(pdw+i));
Byte_in_Dword = (PBYTE) (pdw+i);
Buffer = 0;
for (i=0; i < LastBytes; i++)
{
Buffer |= (*Byte_in_Dword) << (i*8);
Byte_in_Dword++;
}
M64_OD(pjMmBase, HOST_DATA0, Buffer);
}
else
{
for (i=0; i< DWLeft ; i++)
M64_OD(pjMmBase, HOST_DATA0, *(pdw+i));
}
pdw += DWLeft;
DWLeft = 0;
}
else
{
M64_CHECK_FIFO_SPACE(ppdev, pjMmBase, 16);
/* Inline coded for greater performance */
M64_OD(pjMmBase, HOST_DATA0, *(pdw)); // 1 Word
M64_OD(pjMmBase, HOST_DATA0, *(pdw+1)); // 2 Words
M64_OD(pjMmBase, HOST_DATA0, *(pdw+2)); // 3 Words
M64_OD(pjMmBase, HOST_DATA0, *(pdw+3)); // 4 Words
M64_OD(pjMmBase, HOST_DATA0, *(pdw+4)); // 5 Words
M64_OD(pjMmBase, HOST_DATA0, *(pdw+5)); // 6 Words
M64_OD(pjMmBase, HOST_DATA0, *(pdw+6)); // 7 Words
M64_OD(pjMmBase, HOST_DATA0, *(pdw+7)); // 8 Words
M64_OD(pjMmBase, HOST_DATA0, *(pdw+8)); // 9 Words
M64_OD(pjMmBase, HOST_DATA0, *(pdw+9)); // 10 Words
M64_OD(pjMmBase, HOST_DATA0, *(pdw+10)); // 11 Words
M64_OD(pjMmBase, HOST_DATA0, *(pdw+11)); // 12 Words
M64_OD(pjMmBase, HOST_DATA0, *(pdw+12)); // 13 Words
M64_OD(pjMmBase, HOST_DATA0, *(pdw+13)); // 14 Words
pdw += 14;
DWLeft -= THRESH;
} /*if*/
} /* while */
#undef THRESH
}