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105 lines
1.6 KiB
105 lines
1.6 KiB
/*++
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Copyright (c) 1990-1991 Microsoft Corporation
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Module Name:
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htrender.h
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Abstract:
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This module contains halftone rendering declarations
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Author:
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28-Mar-1992 Sat 20:58:50 updated -by- Daniel Chou (danielc)
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Update for VGA16 support, so it intenally compute at 4 primaries.
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22-Jan-1991 Tue 12:46:48 created -by- Daniel Chou (danielc)
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[Environment:]
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GDI Device Driver - Halftone.
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[Notes:]
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Revision History:
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--*/
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#ifndef _HTRENDER_
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#define _HTRENDER_
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#define MAX_LOCAL_MAPPING_TABLE_SIZE 256
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#if (MAX_LOCAL_MAPPING_TABLE_SIZE < 256)
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#error **ERROR** MAX_LOCAL_MAPPING_TABLE_SIZE must greater than 255
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#endif
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#define NEXT_SCANLINE(CBParams) (CBParams.pPlane += CBParams.BytesPerScanLine)
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#define QUERIED_CBSCANLINES(CBParams) (CBParams.ScanCount--)
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#define REMAINED_CBSCANLINES(CBParams) (CBParams.ScanCount)
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#define ZERO_CBSCANLINES(CBParams) (CBParams.ScanCount = 0)
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#define PRIM_INVALID_DENSITY 255
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#define HTCB_TEMP_WIDTH ScanStart
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#define HTCB_TEMP_HEIGHT RemainedSize
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//
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// Function prototypes
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//
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LONG
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HTENTRY
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HalftoneBitmap(
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PHR_HEADER pHR_Header
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);
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LONG
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HTENTRY
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DoHTCallBack(
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UINT HTCallBackMode,
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PHALFTONERENDER pHR
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);
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BOOL
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HTENTRY
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FreeHRMemory(
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PHALFTONERENDER pHalftoneRender
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);
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LONG
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HTENTRY
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ValidateHTSI(
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PHALFTONERENDER pHR,
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UINT HTCallBackMode
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);
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LONG
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HTENTRY
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ComputeBytesPerScanLine(
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WORD SurfaceFormat,
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WORD AlignmentBytes,
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DWORD WidthInPel
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);
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#endif // _HTRENDER_
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