118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
/******************************Module*Header*******************************\
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* Module Name: misc.c
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*
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* Miscellaneous common routines.
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*
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* Copyright (c) 1992-1994 Microsoft Corporation
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*
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\**************************************************************************/
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#include "precomp.h"
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/******************************Public*Routine******************************\
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* VOID vDataPortOutB
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\**************************************************************************/
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VOID vDataPortOutB(
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PDEV* ppdev,
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VOID* pb,
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ULONG cj)
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{
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ULONG pixtrans = (ULONG) (ppdev->ioPix_trans);
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_asm {
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mov ecx, cj
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mov esi, pb
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mov edx, pixtrans
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rep outsb
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}
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}
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/******************************Public*Routine******************************\
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* VOID vDataPortOut
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\**************************************************************************/
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VOID vDataPortOut(
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PDEV* ppdev,
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VOID* pw,
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ULONG cw)
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{
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ULONG pixtrans = (ULONG) (ppdev->ioPix_trans);
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_asm {
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mov ecx, cw
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mov esi, pw
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mov edx, pixtrans
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rep outsw
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}
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}
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/******************************Public*Routine******************************\
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* VOID vDataPortIn
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\**************************************************************************/
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VOID vDataPortIn(
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PDEV* ppdev,
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VOID* pw,
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ULONG cw)
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{
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ULONG pixtrans = (ULONG) (ppdev->ioPix_trans);
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_asm {
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mov ecx, cw
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mov edi, pw
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mov edx, pixtrans
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rep insw
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}
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}
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/******************************Public*Routine******************************\
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* VOID vResetClipping
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\**************************************************************************/
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VOID vResetClipping(
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PDEV* ppdev)
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{
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IO_FIFO_WAIT(ppdev, 4);
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IO_ABS_SCISSORS_L(ppdev, 0);
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IO_ABS_SCISSORS_T(ppdev, 0);
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IO_ABS_SCISSORS_R(ppdev, ppdev->cxMemory - 1);
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IO_ABS_SCISSORS_B(ppdev, ppdev->cyMemory - 1);
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}
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/******************************Public*Routine******************************\
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* VOID vSetClipping
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\**************************************************************************/
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VOID vSetClipping(
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PDEV* ppdev,
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RECTL* prclClip) // In relative coordinates
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{
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LONG xOffset;
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LONG yOffset;
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ASSERTDD(prclClip->left + ppdev->xOffset >= 0,
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"Can't have a negative left!");
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ASSERTDD(prclClip->top + ppdev->yOffset >= 0,
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"Can't have a negative top!");
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IO_FIFO_WAIT(ppdev, 4);
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xOffset = ppdev->xOffset;
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IO_ABS_SCISSORS_L(ppdev, prclClip->left + xOffset);
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IO_ABS_SCISSORS_R(ppdev, prclClip->right - 1 + xOffset);
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ASSERTDD(prclClip->right + xOffset <= 1024,
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"Exceeded right scissors bounds");
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yOffset = ppdev->yOffset;
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IO_ABS_SCISSORS_T(ppdev, prclClip->top + yOffset);
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IO_ABS_SCISSORS_B(ppdev, prclClip->bottom - 1 + yOffset);
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ASSERTDD(prclClip->bottom + yOffset <= 1024,
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"Exceeded bottom scissors bounds");
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}
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