jpeg_drv.rar_jpeg_jpeg s3c6410_jpeg s3c6410 lin_s3c6410_s3c6410

/* * Project Name JPEG DRIVER IN Linux * Copyright 2007 Samsung Electronics Co, Ltd. All Rights Reserved. * * This software is the confidential and proprietary information * of Samsung Electronics ("Confidential Information"). * you shall not disclose such Confidential Information and shall use * it only in accordance with the terms of the license agreement * you entered into with Samsung Electronics * * This file implements JPEG driver. * * @name JPEG DRIVER MODULE Module (JPGOpr.c) * @author Jiun Yu (jiun.yu@samsung.com) * @date 28-07-07 */ #include "JPGMem.h" #include "JPGMisc.h" #include "JPGOpr.h" #include "JPGConf.h" #include "LogMsg.h" extern int jpg_irq_reason; enum{ UNKNOWN, BASELINE = 0xC0, EXTENDED_SEQ = 0xC1, PROGRESSIVE = 0xC2 }JPG_SOF_MARKER; /*---------------------------------------------------------------------------- *Function: decodeJPG *Parameters: jCTX: input_buff: input_size: output_buff: output_size *Return Value: *Implementation Notes: -----------------------------------------------------------------------------*/ JPG_RETURN_STATUS decodeJPG(S3C6400_JPG_CTX *jCTX, JPG_DEC_PROC_PARAM *decParam) { volatile int ret; SAMPLE_MODE_T sampleMode; UINT32 width, height, orgwidth, orgheight; BOOL headerFixed = FALSE; LOG_MSG(LOG_TRACE, "decodeJPG", "decodeJPG function\n"); resetJPG(jCTX); ///////////////////////////////////////////////////////// // Header Parsing // ///////////////////////////////////////////////////////// decodeHeader(jCTX); WaitForInterrupt(); ret = jpg_irq_reason; if(ret != OK_HD_PARSING){ LOG_MSG(LOG_ERROR, "\ndecodeJPG", "DD::JPG Header Parsing Error(%d)\r\n", ret); return JPG_FAIL; } sampleMode = getSampleType(jCTX); LOG_MSG(LOG_TRACE, "decodeJPG", "sampleMode : %d\n", sampleMode); if(sampleMode == JPG_SAMPLE_UNKNOWN){ LOG_MSG(LOG_ERROR, "decodeJPG", "DD::JPG has invalid sampleMode\r\n"); return JPG_FAIL; } decParam->sampleMode = sampleMode; getXY(jCTX, &width, &height); LOG_MSG(LOG_TRACE, "decodeJPG", "DD:: width : 0x%x height : 0x%x\n", width, height); if(width <= 0 || width > MAX_JPG_WIDTH || height <= 0 || height > MAX_JPG_HEIGHT){ LOG_MSG(LOG_ERROR, "decodeJPG", "DD::JPG has invalid width/height\n"); return JPG_FAIL; } ///////////////////////////////////////////////////////// // Header Correction // ///////////////////////////////////////////////////////// orgwidth = width; orgheight = height; if(!isCorrectHeader(sampleMode, &width, &height)){ rewriteHeader(jCTX, decParam->fileSize, width, height); headerFixed = TRUE; } ///////////////////////////////////////////////////////// // Body Decoding // ///////////////////////////////////////////////////////// if(headerFixed){ resetJPG(jCTX); decodeHeader(jCTX); WaitForInterrupt(); ret = jpg_irq_reason; if(ret != OK_HD_PARSING){ LOG_MSG(LOG_ERROR, "decodeJPG", "JPG Header Parsing Error(%d)\r\n", ret); return JPG_FAIL; } decodeBody(jCTX); WaitForInterrupt(); ret = jpg_irq_reason; if(ret != OK_ENC_OR_DEC){ LOG_MSG(LOG_ERROR, "decodeJPG", "JPG Body Decoding Error(%d)\n", ret); return JPG_FAIL; } // for post processor, discard pixel if(orgwidth % 4 != 0) orgwidth = (orgwidth/4)*4; LOG_MSG(LOG_TRACE, "decodeJPG", "orgwidth : %d orgheight : %d\n", orgwidth, orgheight); rewriteYUV(jCTX, width, orgwidth, height, orgheight); // JPEG H/W IP always return YUV422 decParam->dataSize = getYUVSize(JPG_422, orgwidth, orgheight); decParam->width = orgwidth; decParam->height = orgheight; } else{ decodeBody(jCTX); WaitForInterrupt(); ret = jpg_irq_reason; if(ret != OK_ENC_OR_DEC){ LOG_MSG(LOG_ERROR, "decodeJPG", "DD::JPG Body Decoding Error(%d)\n", ret); return JPG_FAIL; } // JPEG H/W IP always return YUV422 decParam->dataSize = getYUVSize(JPG_422, width, height); decParam->width = width; decParam->height = height; } return JPG_SUCCESS; } /*---------------------------------------------------------------------------- *Function: isCorrectHeader *Parameters: sampleMode: width: height: *Return Value: *Implementation Notes: -----------------------------------------------------------------------------*/ BOOL isCorrectHeader(SAMPLE_MODE_T sampleMode, UINT32 *width, UINT32 *height) { BOOL result = FALSE; LOG_MSG(LOG_TRACE, "isCorrectHeader", "Header is not multiple of MCU\n"); switch(sampleMode){ case JPG_400 : case JPG_444 : if((*width % 8 == 0) && (*height % 8 == 0)) result = TRUE; if(*width % 8 != 0) *width += 8 - (*width % 8); if(*height % 8 != 0) *height += 8 - (*height % 8); break; case JPG_422 : if((*width % 16 == 0) && (*height % 8 == 0)) result = TRUE; if(*width % 16 != 0) *width += 16 - (*width % 16); if(*height % 8 != 0) *height += 8 - (*height % 8); break; case JPG_420 : case JPG_411 : if((*width % 16 == 0) && (*height % 16 == 0)) result = TRUE; if(*width % 16 != 0) *width += 16 - (*width % 16); if(*height % 16 != 0) *height += 16 - (*height % 16); break; default : break; } LOG_MSG(LOG_TRACE, "isCorrectHeader", "after error correction : width(%x) height(%x)\n", *width, *height); return(result); } /*---------------------------------------------------------------------------- *Function: rewriteHeader *Parameters: jCTX: file_size: width: height: *Return Value: *Implementation Notes: -----------------------------------------------------------------------------*/ void rewriteHeader(S3C6400_JPG_CTX *jCTX, UINT32 file_size, UINT32 width, UINT32 height) { UINT32 i; UINT8 *ptr = (UINT8 *)jCTX->v_pJPGData_Buff; UINT8 *SOF1 = NULL, *SOF2 = NULL; UINT8 *header = NULL; LOG_MSG(LOG_TRACE, "rewriteHeader", "file size : %d, v_pJPGData_Buff : 0x%X\n", file_size, ptr); for(i=0; i < file_size; i++){ if(*ptr++ == 0xFF){ if((*ptr == BASELINE) || (*ptr == EXTENDED_SEQ) || (*ptr == PROGRESSIVE)){ LOG_MSG(LOG_TRACE, "rewriteHeader", "match FFC0(i : %d)\n", i); if(SOF1 == NULL) SOF1 = ++ptr; else{ SOF2 = ++ptr; break; } } } } LOG_MSG(LOG_TRACE, "rewriteHeader", "start header correction\n"); if(i <= file_size){ header = (SOF2 == NULL) ? (SOF1) : (SOF2); header += 3; //length(2) + sampling bit(1) *header = (height>>8) & 0xFF; header++; *header = height & 0xFF; header++; *header = (width>>8) & 0xFF; header++; *header = (width & 0xFF); } } /*---------------------------------------------------------------------------- *Function: resetJPG *Parameters: jCTX: *Return Value: *Implementation Notes: -----------------------------------------------------------------------------*/ void resetJPG(S3C6400_JPG_CTX *jCTX) { LOG_MSG(LOG_TRACE, "resetJPG", "resetJPG function\n"); jCTX->v_pJPG_REG->JPGSoftReset = 0; //ENABLE } /*---------------------------------------------------------------------------- *Function: decodeHeader *Parameters: jCTX: *Return Value: *Implementation Notes: -----------------------------------------------------------------------------*/ void decodeHeader(S3C6400_JPG_CTX *jCTX) { LOG_MSG(LOG_TRACE, "decodeHeader", "decodeHeader function\n"); jCTX->v_pJPG_REG->JPGFileAddr0 = JPG_DATA_BASE_ADDR; jCTX->v_pJPG_REG->JPGFileAddr1 = JPG_DATA_BASE_ADDR; jCTX->v_pJPG_REG->JPGMod = 0x08; //decoding mode jCTX->v_pJPG_REG->JPGIRQ = ENABLE_IRQ; jCTX->v_pJPG_REG->JPGCntl = DISABLE_HW_DEC; jCTX->v_pJPG_REG->JPGMISC = (NORMAL_DEC | YCBCR_MEMORY); jCTX->v_pJPG_REG->JPGStart = 1; } /*-----