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455 lines
14 KiB
455 lines
14 KiB
/* *************************************************************************
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** INTEL Corporation Proprietary Information
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**
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** This listing is supplied under the terms of a license
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** agreement with INTEL Corporation and may not be copied
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** nor disclosed except in accordance with the terms of
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** that agreement.
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**
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** Copyright (c) 1995,1996 Intel Corporation.
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** All Rights Reserved.
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**
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** *************************************************************************
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*/
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;//
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;// Description: This module implements the following functions.
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;// CustomChangeBrightness();
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;// CustomChangeContrast();
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;// CustomChangeSaturation();
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;// CustomResetBrightness();
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;// CustomResetContrast();
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;// CustomResetSaturation();
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;// CustomGetBrightness();
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;// CustomGetContrast();
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;// CustomGetSaturation();
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;//
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;// $Author: BECHOLS $
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;// $Date: 09 Dec 1996 08:51:44 $
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;// $Archive: S:\h26x\src\dec\dxctrls.cpv $
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;// $Header: S:\h26x\src\dec\dxctrls.cpv 1.14 09 Dec 1996 08:51:44 BECHOLS $
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;// $Log: S:\h26x\src\dec\dxctrls.cpv $
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//
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// Rev 1.14 09 Dec 1996 08:51:44 BECHOLS
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// Fixed reset saturation, so that it modified chroma table, not luma.
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//
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// Rev 1.13 20 Oct 1996 13:33:32 AGUPTA2
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// Changed DBOUT into DbgLog. ASSERT is not changed to DbgAssert.
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//
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//
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// Rev 1.12 10 Sep 1996 10:31:38 KLILLEVO
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// changed all GlobalAlloc/GlobalLock calls to HeapAlloc
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//
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// Rev 1.11 11 Jul 1996 14:09:18 SCDAY
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// Added comments re: CustomGetB/C/S functions
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//
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// Rev 1.10 10 Jul 1996 08:21:26 SCDAY
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// Added functions for CustomGetBrightness/Contrast/Saturation (DBrucks)
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//
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// Rev 1.9 04 Jun 1996 09:04:00 AKASAI
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// Fixed bug in CustomResetSaturation where it was reseting the LumaTable
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// instead of the ChromaTable. This was discovered in Quartz testing.
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//
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// Rev 1.8 01 Feb 1996 10:16:24 BNICKERS
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// Fix the "knobs".
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//
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// Rev 1.7 22 Dec 1995 13:53:06 KMILLS
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//
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// added new copyright notice
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//
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// Rev 1.6 17 Nov 1995 15:22:12 BECHOLS
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//
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// Added ring 0 stuff.
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//
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// Rev 1.5 01 Nov 1995 16:52:24 TRGARDOS
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// Fixed unmatched GlobalUnlocks.
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//
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// Rev 1.4 25 Oct 1995 18:14:02 BNICKERS
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//
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// Clean up archive stuff.
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//
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// Rev 1.3 20 Sep 1995 09:23:52 SCDAY
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//
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// added #ifdef for #include d?dec.h
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//
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// Rev 1.2 01 Sep 1995 09:49:36 DBRUCKS
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// checkin partial ajdust pels changes
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//
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// Rev 1.1 23 Aug 1995 12:24:04 DBRUCKS
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// change to H26X_DEFAULT_* from H263_ as these are shared values.
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//
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// Rev 1.0 31 Jul 1995 13:00:14 DBRUCKS
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// Initial revision.
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//
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// Rev 1.1 24 Jul 1995 15:00:40 CZHU
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//
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// Adjust the changes to the decoder catalog structure
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//
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// Rev 1.0 17 Jul 1995 14:46:18 CZHU
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// Initial revision.
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//
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// Rev 1.0 17 Jul 1995 14:14:22 CZHU
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// Initial revision.
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;////////////////////////////////////////////////////////////////////////////
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#include "precomp.h"
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#define SCALE 128
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#define ACTIVE_RANGE 256
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#define OFFSET_TABLE_COPY 256 + 16
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typedef BOOL FAR *LPBOOL;
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typedef struct {
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LPBYTE LumaTable;
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LPBOOL LumaFlag;
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LPBYTE ChromaTable;
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LPBOOL ChromaFlag;
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LPBYTE Brightness;
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LPBYTE Contrast;
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LPBYTE Saturation;
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} PIXDAT, FAR *LPPIXDAT;
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/**********************************************************************
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* static WORD LockLCTables(LPDECINST, LPPIXDAT);
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* Description: This function locks the memory and fills the Pixel Data
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* Structure with valid pointers to the tables that I need
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* to adjust.
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* History: 06/29/94 -BEN-
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**********************************************************************/
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static LRESULT LockLCTables(LPDECINST lpInst, LPPIXDAT lpPixData)
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{
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T_H263DecoderCatalog *DC;
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FX_ENTRY("LockLCTables")
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if(IsBadWritePtr((LPVOID)lpInst, sizeof(DECINSTINFO)))
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{
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ERRORMESSAGE(("%s: ICERR_BADPARAM\r\n", _fx_));
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return(ICERR_BADPARAM);
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}
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DC = (T_H263DecoderCatalog *) ((((U32) lpInst->pDecoderInst) + 31) & ~0x1F);
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lpPixData->LumaTable = (LPBYTE)(DC->p16InstPostProcess +
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DC->X16_LumaAdjustment);
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lpPixData->ChromaTable = (LPBYTE)(DC->p16InstPostProcess +
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DC->X16_ChromaAdjustment);
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lpPixData->LumaFlag = (LPBOOL)&(DC->bAdjustLuma);
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lpPixData->ChromaFlag = (LPBOOL)&(DC->bAdjustChroma);
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lpPixData->Brightness = (LPBYTE)&(DC->BrightnessSetting);
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lpPixData->Contrast = (LPBYTE)&(DC->ContrastSetting);
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lpPixData->Saturation = (LPBYTE)&(DC->SaturationSetting);
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return(ICERR_OK);
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}
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/*********************************************************************
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* static LRESULT UnlockLCTables(LPDECINST, LPPIXDAT);
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* Description: This funtion unlocks
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* History: 06/30/94 -BEN-
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**********************************************************************/
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static LRESULT UnlockLCTables(LPDECINST lpInst, LPPIXDAT lpPixData)
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{
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T_H263DecoderCatalog *DC;
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DC = (T_H263DecoderCatalog *) ((((U32) lpInst->pDecoderInst) + 31) & ~0x1F);
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lpPixData->LumaTable = (LPBYTE)NULL;
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lpPixData->ChromaTable = (LPBYTE)NULL;
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lpPixData->LumaFlag = (LPBOOL)NULL;
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lpPixData->ChromaFlag = (LPBOOL)NULL;
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return(ICERR_OK);
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}
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/**********************************************************************
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* static VOID MassageContrast(BYTE, PBYTE);
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* Description: input is 0 to 255, 1/SCALE to 256/SCALE inclusive
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* 0 = 1/SCALE
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* 1 = 2/SCALE
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* n = (n + 1) / SCALE
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* SCALE - 1 = 1 yields no change
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* 255 = 256/SCALE
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* if the response is too coarse, SCALE can be increased
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* if the response is too fine, SCALE can be decreased
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*
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* History: 02/22/94 -BEN- Added header.
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**********************************************************************/
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static VOID MassageContrast(BYTE offsetfactor, LPBYTE table)
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{
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int i;
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long temp, contrastfactor;
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contrastfactor = ((long)((DWORD)offsetfactor)) + 1; // 1 - 256
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contrastfactor = (contrastfactor * ACTIVE_RANGE) / 256L;
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for(i = 0; i < 256; i++)
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{
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temp = (long)((DWORD)table[i]);
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temp -= (ACTIVE_RANGE / 2L); // add centering
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temp *= contrastfactor;
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temp /= SCALE;
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temp += (ACTIVE_RANGE / 2L); // remove centering
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if(temp < 0) // and clamp
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table[i] = 0;
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else if(temp <= 255)
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table[i] = (unsigned char) temp;
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else
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table[i] = 255;
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table[i+OFFSET_TABLE_COPY] = table[i];
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}
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return;
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}
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;////////////////////////////////////////////////////////////////////////////
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;// Function: LRESULT CustomChangeBrightness(LPDECINST, BYTE);
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;//
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;// Description: Added header.
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;//
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;// History: 02/22/94 -BEN-
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;////////////////////////////////////////////////////////////////////////////
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LRESULT CustomChangeBrightness(LPDECINST lpInst, BYTE offsetdelta)
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{
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LRESULT lRes;
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int delta, temp, i;
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PIXDAT PixData;
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lRes = LockLCTables(lpInst, &PixData);
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if(lRes == ICERR_OK)
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{
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CustomResetBrightness(lpInst);
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if(offsetdelta != H26X_DEFAULT_BRIGHTNESS)
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{
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delta = ((offsetdelta - 128) * ACTIVE_RANGE) / 256; // -128 to 127
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for(i = 0; i < 256; i++)
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{
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temp = (int)PixData.LumaTable[i] + delta;
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if(temp < 0) PixData.LumaTable[i] = 0;
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else if(temp <= 255) PixData.LumaTable[i] = (BYTE)temp;
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else PixData.LumaTable[i] = 255;
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PixData.LumaTable[i+OFFSET_TABLE_COPY] = PixData.LumaTable[i];
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}
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*(PixData.Brightness) = offsetdelta;
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*(PixData.LumaFlag) = TRUE;
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}
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lRes = UnlockLCTables(lpInst, &PixData);
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}
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return(lRes);
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}
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;////////////////////////////////////////////////////////////////////////////
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;// Function: LRESULT CustomChangeContrast(LPDECINST, BYTE);
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;//
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;// Description: Added header.
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;//
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;// History: 02/22/94 -BEN-
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;////////////////////////////////////////////////////////////////////////////
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LRESULT CustomChangeContrast(LPDECINST lpInst, BYTE offsetfactor)
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{
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LRESULT lRes;
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PIXDAT PixData;
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lRes = LockLCTables(lpInst, &PixData);
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if(lRes == ICERR_OK)
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{
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CustomResetContrast(lpInst);
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if(offsetfactor != H26X_DEFAULT_CONTRAST)
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{
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MassageContrast(offsetfactor, PixData.LumaTable);
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*(PixData.Contrast) = offsetfactor;
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*(PixData.LumaFlag) = TRUE;
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}
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lRes = UnlockLCTables(lpInst, &PixData);
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}
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return(lRes);
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}
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;////////////////////////////////////////////////////////////////////////////
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;// Function: LRESULT CustomChangeSaturation(LPDECINST, BYTE);
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;//
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;// Description: Added header.
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;//
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;// History: 02/22/94 -BEN-
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;////////////////////////////////////////////////////////////////////////////
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LRESULT CustomChangeSaturation(LPDECINST lpInst, BYTE offsetfactor)
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{
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LRESULT lRes;
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PIXDAT PixData;
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lRes = LockLCTables(lpInst, &PixData);
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if(lRes == ICERR_OK)
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{
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CustomResetSaturation(lpInst);
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if(offsetfactor != H26X_DEFAULT_SATURATION)
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{
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MassageContrast(offsetfactor, PixData.ChromaTable);
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*(PixData.Saturation) = offsetfactor;
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*(PixData.ChromaFlag) = TRUE;
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}
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lRes = UnlockLCTables(lpInst, &PixData);
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}
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return(lRes);
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}
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#ifdef QUARTZ
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/************************************************************************
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* CustomGetBrightness
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*
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* Gets the current brightness value
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***********************************************************************/
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LRESULT CustomGetBrightness(
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LPDECINST lpInst,
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BYTE * pValue)
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{
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LRESULT lResult = ICERR_ERROR;
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T_H263DecoderCatalog *DC;
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DC = (T_H263DecoderCatalog *) ((((U32) lpInst->pDecoderInst) + 31) & ~0x1F);
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*pValue = (BYTE) DC->BrightnessSetting;
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lResult = ICERR_OK;
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return lResult;
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} /* end CustomGetBrightness() */
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/************************************************************************
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* CustomGetContrast
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*
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* Gets the current contrast value
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***********************************************************************/
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LRESULT CustomGetContrast(
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LPDECINST lpInst,
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BYTE * pValue)
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{
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LRESULT lResult = ICERR_ERROR;
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T_H263DecoderCatalog *DC;
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DC = (T_H263DecoderCatalog *) ((((U32) lpInst->pDecoderInst) + 31) & ~0x1F);
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*pValue = (BYTE) DC->ContrastSetting;
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lResult = ICERR_OK;
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return lResult;
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} /* end CustomGetContrast() */
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/************************************************************************
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*
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* CustomGetSaturation
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*
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* Gets the current saturation value
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***********************************************************************/
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LRESULT CustomGetSaturation(
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LPDECINST lpInst,
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BYTE * pValue)
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{
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LRESULT lResult = ICERR_ERROR;
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T_H263DecoderCatalog *DC;
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DC = (T_H263DecoderCatalog *) ((((U32) lpInst->pDecoderInst) + 31) & ~0x1F);
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*pValue = (BYTE) DC->SaturationSetting;
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lResult = ICERR_OK;
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return lResult;
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} /* end CustomGetSaturation() */
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#endif /* QUARTZ */
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;////////////////////////////////////////////////////////////////////////////
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;// Function: LRESULT CustomResetBrightness(LPDECINST lpInst);
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;//
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;// Description: Sets the luminance table to identity, and resets
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;// flag indicating need to use.
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;//
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;// History: 02/22/94 -BEN-
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;////////////////////////////////////////////////////////////////////////////
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LRESULT CustomResetBrightness(LPDECINST lpInst)
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{
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LRESULT lRes;
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int i;
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PIXDAT PixData;
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lRes = LockLCTables(lpInst, &PixData);
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if(lRes == ICERR_OK)
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{
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for(i = 0; i < 256; i++)
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{
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PixData.LumaTable[i] = i;
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PixData.LumaTable[i+OFFSET_TABLE_COPY] = i;
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}
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*(PixData.LumaFlag) = FALSE;
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*(PixData.Brightness) = H26X_DEFAULT_BRIGHTNESS;
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if(*(PixData.Contrast) != H26X_DEFAULT_CONTRAST)
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CustomChangeContrast(lpInst, *(PixData.Contrast));
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lRes = UnlockLCTables(lpInst, &PixData);
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}
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return(lRes);
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}
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;////////////////////////////////////////////////////////////////////////////
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;// Function: LRESULT CustomResetContrast(LPDECINST lpInst);
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;//
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;// Description: Sets the luminance table to identity, and resets
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;// flag indicating need to use.
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;//
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;// History: 02/22/94 -BEN-
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;////////////////////////////////////////////////////////////////////////////
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LRESULT CustomResetContrast(LPDECINST lpInst)
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{
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LRESULT lRes;
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int i;
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PIXDAT PixData;
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lRes = LockLCTables(lpInst, &PixData);
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if(lRes == ICERR_OK)
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{
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for(i = 0; i < 256; i++)
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{
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PixData.LumaTable[i] = i;
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PixData.LumaTable[i+OFFSET_TABLE_COPY] = i;
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}
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*(PixData.LumaFlag) = FALSE;
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*(PixData.Contrast) = H26X_DEFAULT_CONTRAST;
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if(*(PixData.Brightness) != H26X_DEFAULT_BRIGHTNESS)
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CustomChangeBrightness(lpInst, *(PixData.Brightness));
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lRes = UnlockLCTables(lpInst, &PixData);
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}
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return(lRes);
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}
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;////////////////////////////////////////////////////////////////////////////
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;// Function: LRESULT CustomResetSaturation(LPDECINST);
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;//
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;// Description: Sets chroma tables to identity, and resets
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;// flag indicating need to use.
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;//
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;// History: 02/22/94 -BEN-
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;////////////////////////////////////////////////////////////////////////////
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LRESULT CustomResetSaturation(LPDECINST lpInst)
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{
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LRESULT lRes;
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int i;
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PIXDAT PixData;
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lRes = LockLCTables(lpInst, &PixData);
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if(lRes == ICERR_OK)
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{
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for(i = 0; i < 256; i++)
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{
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PixData.ChromaTable[i] = i;
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PixData.ChromaTable[i+OFFSET_TABLE_COPY] = i;
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}
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*(PixData.ChromaFlag) = FALSE;
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*(PixData.Saturation) = H26X_DEFAULT_SATURATION;
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lRes = UnlockLCTables(lpInst, &PixData);
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}
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return(lRes);
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}
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