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celljpegdec_ti.c
Package: DSP-C6000-DM642DEMO.rar　[view]
Upload User: dahaojd
Upload Date: 2008-01-29
Package Size: 14357k
Code Size: 3k
Category:

DSP program

Development Platform:

C/C++

celljpegdec_ti.c：Code Content
  1. /*
  2.  *  Copyright 2002 by Texas Instruments Incorporated.
  3.  *  All rights reserved. Property of Texas Instruments Incorporated.
  4.  *  Restricted rights to use, duplicate or disclose this code are
  5.  *  granted through contract.
  6.  *
  7.  */
  8. /* "@(#) RF5_IEK 1.20.07 09-26-02 (swat-c12)" */
  9. /*
  10.  *  ======== celljpegdec.c ========
  11.  */
  13. #include <stdio.h>
  14. #include <stdlib.h>
  17. #include <std.h>
  19. #include <log.h>
  20. #include <tsk.h>
  22. #include <algrf.h>
  23. #include <icell.h>
  24. #include <utl.h>
  26. #include "celljpegdec_ti.h"
  27. #include "ijpegdec.h"
  29. #include <dman.h>
  31. #include "appThreads.h"
  32. #include "appResources.h"
  34. extern far IDMA2_Fxns JPEGDEC_IDMA2;        /* the algorithm's IDMA2 v-table */
  36. // v-table for this cell
  37. ICELL_Fxns JPEGDEC_CELLFXNS =
  38. {
  39.     JPEGDEC_cellClose,      // cellClose
  40.     NULL,                  // cellControl
  41.     JPEGDEC_cellExecute,    // cellExecute
  42.     JPEGDEC_cellOpen        // cellOpen
  43. };
  45. /*
  46.  *  ======== JPEGDEC_cellClose ========
  47.  *
  48.  */
  49. Bool JPEGDEC_cellClose( ICELL_Handle handle )
  50. {
  51.     // Withdraw DMA resources from algorithm
  52.     return (DMAN_removeAlg((IALG_Handle)handle->algHandle, &JPEGDEC_IDMA2));
  53. }
  57. /*
  58.  *  ======== JPEGDEC_cellExecute ========
  59.  *
  60.  */
  61. Bool JPEGDEC_cellExecute( ICELL_Handle handle, Arg arg )
  62. {
  63.     int ret_val;
  64.     unsigned int **Input = handle->inputIcc[0]->buffer;
  66.     UTL_stsStart( stsExeTimeChJpegDec );
  68.     // activate instance object
  69.     ALGRF_activate( handle->algHandle );
  71.     // call JPEG decode through IALG layer
  73.     ret_val = ((IJPEGDEC_Fxns *)(handle->algFxns))->decode
  74.                         (
  75.                            (IJPEGDEC_Handle)handle->algHandle,
  76.                            (XDAS_Int8 *)(Input[1]),
  77.                            (XDAS_Int8 **)handle->outputIcc[0]->buffer
  78.                         );
  80.     // negative value here, implies incorrect decode.
  81.     UTL_assert(ret_val >= 0);
  83.     // deactivate instance object
  84.     ALGRF_deactivate( handle->algHandle );
  86.     UTL_stsStop( stsExeTimeChJpegDec );
  88.     return(1);
  89. }
  91. /*
  92.  *  ======== JPEGDEC_cellOpen ========
  93.  *
  94.  */
  95. Bool JPEGDEC_cellOpen( ICELL_Handle handle )
  96. {
  97.     // Grant DMA resources
  98.     return (DMAN_addAlg((IALG_Handle)handle->algHandle, &JPEGDEC_IDMA2));
  99. }
  101. /*------------------------------------------------------------------*/
  102. /* Texas Instruments Incorporated 1997-2003.                        */
  103. /*==================================================================*/
  104. /*                                                                  */
  105. /*------------------------------------------------------------------*/