diff options
Diffstat (limited to 'libs3cjpeg/JpegEncoder.cpp')
| -rw-r--r-- | libs3cjpeg/JpegEncoder.cpp | 796 |
1 files changed, 0 insertions, 796 deletions
diff --git a/libs3cjpeg/JpegEncoder.cpp b/libs3cjpeg/JpegEncoder.cpp deleted file mode 100644 index d2b6a6f..0000000 --- a/libs3cjpeg/JpegEncoder.cpp +++ /dev/null @@ -1,796 +0,0 @@ -/* - * Copyright Samsung Electronics Co.,LTD. - * Copyright (C) 2010 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * JPEG DRIVER MODULE (JpegEncoder.cpp) - * Author : ge.lee -- initial version - * Date : 03 June 2010 - * Purpose : This file implements the JPEG encoder APIs as needed by Camera HAL - */ -#define LOG_TAG "JpegEncoder" -#define MAIN_DUMP 0 -#define THUMB_DUMP 0 - -#include <utils/Log.h> -#include <sys/mman.h> -#include <fcntl.h> - -#include "JpegEncoder.h" - -static const char ExifAsciiPrefix[] = { 0x41, 0x53, 0x43, 0x49, 0x49, 0x0, 0x0, 0x0 }; - -namespace android { -JpegEncoder::JpegEncoder() : available(false) -{ - mArgs.mmapped_addr = (char *)MAP_FAILED; - mArgs.enc_param = NULL; - mArgs.thumb_enc_param = NULL; - - mDevFd = open(JPG_DRIVER_NAME, O_RDWR); - if (mDevFd < 0) { - ALOGE("Failed to open the device"); - return; - } - - mArgs.mmapped_addr = (char *)mmap(0, - JPG_TOTAL_BUF_SIZE, - PROT_READ | PROT_WRITE, - MAP_SHARED, - mDevFd, - 0); - - if (mArgs.mmapped_addr == MAP_FAILED) { - ALOGE("Failed to mmap"); - return; - } - - mArgs.enc_param = new jpg_enc_proc_param; - if (mArgs.enc_param == NULL) { - ALOGE("Failed to allocate the memory for enc_param"); - return; - } - memset(mArgs.enc_param, 0, sizeof(jpg_enc_proc_param)); - - mArgs.thumb_enc_param = new jpg_enc_proc_param; - if (mArgs.thumb_enc_param == NULL) { - ALOGE("Failed to allocate the memory for thumb_enc_param"); - delete mArgs.enc_param; - return; - } - memset(mArgs.thumb_enc_param, 0, sizeof(jpg_enc_proc_param)); - - mArgs.enc_param->sample_mode = JPG_420; - mArgs.enc_param->enc_type = JPG_MAIN; - mArgs.thumb_enc_param->sample_mode = JPG_420; - mArgs.thumb_enc_param->enc_type = JPG_THUMBNAIL; - - available = true; -} - -JpegEncoder::~JpegEncoder() -{ - if (mArgs.mmapped_addr != (char*)MAP_FAILED) - munmap(mArgs.mmapped_addr, JPG_TOTAL_BUF_SIZE); - - delete mArgs.enc_param; - - delete mArgs.thumb_enc_param; - - if (mDevFd > 0) - close(mDevFd); -} - -jpg_return_status JpegEncoder::setConfig(jpeg_conf type, int32_t value) -{ - if (!available) - return JPG_FAIL; - - jpg_return_status ret = JPG_SUCCESS; - - switch (type) { - case JPEG_SET_ENCODE_WIDTH: - if (value < 0 || value > MAX_JPG_WIDTH) - ret = JPG_FAIL; - else - mArgs.enc_param->width = value; - break; - - case JPEG_SET_ENCODE_HEIGHT: - if (value < 0 || value > MAX_JPG_HEIGHT) - ret = JPG_FAIL; - else - mArgs.enc_param->height = value; - break; - - case JPEG_SET_ENCODE_QUALITY: - if (value < JPG_QUALITY_LEVEL_1 || value > JPG_QUALITY_LEVEL_4) - ret = JPG_FAIL; - else - mArgs.enc_param->quality = (image_quality_type_t)value; - break; - - case JPEG_SET_ENCODE_IN_FORMAT: - if (value != JPG_MODESEL_YCBCR && value != JPG_MODESEL_RGB) { - ret = JPG_FAIL; - } else { - mArgs.enc_param->in_format = (in_mode_t)value; - mArgs.thumb_enc_param->in_format = (in_mode_t)value; - } - break; - - case JPEG_SET_SAMPING_MODE: - if (value != JPG_420 && value != JPG_422) { - ret = JPG_FAIL; - } else { - mArgs.enc_param->sample_mode = (sample_mode_t)value; - mArgs.thumb_enc_param->sample_mode = (sample_mode_t)value; - } - break; - - case JPEG_SET_THUMBNAIL_WIDTH: - if (value < 0 || value > MAX_JPG_THUMBNAIL_WIDTH) - ret = JPG_FAIL; - else - mArgs.thumb_enc_param->width = value; - break; - - case JPEG_SET_THUMBNAIL_HEIGHT: - if (value < 0 || value > MAX_JPG_THUMBNAIL_HEIGHT) - ret = JPG_FAIL; - else - mArgs.thumb_enc_param->height = value; - break; - - default: - ALOGE("Invalid Config type"); - ret = ERR_UNKNOWN; - } - - if (ret == JPG_FAIL) - ALOGE("Invalid value(%d) for %d type", value, type); - - return ret; -} - -void* JpegEncoder::getInBuf(uint64_t size) -{ - if (!available) - return NULL; - - if (size > JPG_FRAME_BUF_SIZE) { - ALOGE("The buffer size requested is too large"); - return NULL; - } - mArgs.in_buf = (char *)ioctl(mDevFd, IOCTL_JPG_GET_FRMBUF, mArgs.mmapped_addr); - return (void *)(mArgs.in_buf); -} - -void* JpegEncoder::getOutBuf(uint64_t *size) -{ - if (!available) - return NULL; - - if (mArgs.enc_param->file_size <= 0) { - ALOGE("The buffer requested doesn't have data"); - return NULL; - } - mArgs.out_buf = (char *)ioctl(mDevFd, IOCTL_JPG_GET_STRBUF, mArgs.mmapped_addr); - *size = mArgs.enc_param->file_size; - return (void *)(mArgs.out_buf); -} - -void* JpegEncoder::getThumbInBuf(uint64_t size) -{ - if (!available) - return NULL; - - if (size > JPG_FRAME_THUMB_BUF_SIZE) { - ALOGE("The buffer size requested is too large"); - return NULL; - } - mArgs.in_thumb_buf = (char *)ioctl(mDevFd, IOCTL_JPG_GET_THUMB_FRMBUF, mArgs.mmapped_addr); - return (void *)(mArgs.in_thumb_buf); -} - -void* JpegEncoder::getThumbOutBuf(uint64_t *size) -{ - if (!available) - return NULL; - - if (mArgs.thumb_enc_param->file_size <= 0) { - ALOGE("The buffer requested doesn't have data"); - return NULL; - } - mArgs.out_thumb_buf = (char *)ioctl(mDevFd, IOCTL_JPG_GET_THUMB_STRBUF, mArgs.mmapped_addr); - *size = mArgs.thumb_enc_param->file_size; - return (void *)(mArgs.out_thumb_buf); -} - -jpg_return_status JpegEncoder::encode(unsigned int *size, exif_attribute_t *exifInfo) -{ - if (!available) - return JPG_FAIL; - - ALOGD("encode E"); - - jpg_return_status ret = JPG_FAIL; - unsigned char *exifOut = NULL; - jpg_enc_proc_param *param = mArgs.enc_param; - - ret = checkMcu(param->sample_mode, param->width, param->height, false); - if (ret != JPG_SUCCESS) - return ret; - - param->enc_type = JPG_MAIN; - ret = (jpg_return_status)ioctl(mDevFd, IOCTL_JPG_ENCODE, &mArgs); - if (ret != JPG_SUCCESS) { - ALOGE("Failed to encode main image"); - return ret; - } - - mArgs.out_buf = (char *)ioctl(mDevFd, IOCTL_JPG_GET_STRBUF, mArgs.mmapped_addr); - - if (exifInfo) { - unsigned int thumbLen, exifLen; - - uint_t bufSize = 0; - if (exifInfo->enableThumb) { - ret = encodeThumbImg(&thumbLen); - if (ret != JPG_SUCCESS) { - ALOGE("Failed to encode for thumbnail image"); - bufSize = EXIF_FILE_SIZE; - exifInfo->enableThumb = false; - } else { - bufSize = EXIF_FILE_SIZE + thumbLen; - } - } else { - bufSize = EXIF_FILE_SIZE; - } - - if (mArgs.enc_param->file_size + bufSize > JPG_TOTAL_BUF_SIZE) - return ret; - - exifOut = new unsigned char[bufSize]; - if (exifOut == NULL) { - ALOGE("Failed to allocate for exifOut"); - return ret; - } - memset(exifOut, 0, bufSize); - - ret = makeExif (exifOut, exifInfo, &exifLen); - if (ret != JPG_SUCCESS) { - ALOGE("Failed to make EXIF"); - delete[] exifOut; - return ret; - } - - memmove(&mArgs.out_buf[exifLen + 2], &mArgs.out_buf[2], param->file_size - 2); - memcpy(&mArgs.out_buf[2], exifOut, exifLen); - param->file_size += exifLen; - } - - delete[] exifOut; - - *size = param->file_size; - -#if MAIN_DUMP - FILE *fout = NULL; - char file_name[50] = "/data/main.jpg"; - fout = fopen(file_name, "wb"); - if (!fout) - perror(&file_name[0]); - size_t nwrite = fwrite(mArgs.out_buf, sizeof(char), param->file_size, fout); - fclose(fout); -#endif - - ALOGD("encode X"); - - return ret; -} - -jpg_return_status JpegEncoder::encodeThumbImg(unsigned int *size, bool useMain) -{ - if (!available) - return JPG_FAIL; - - ALOGD("encodeThumbImg E"); - - jpg_return_status ret = JPG_FAIL; - jpg_enc_proc_param *param = mArgs.thumb_enc_param; - - if (useMain) { - mArgs.in_thumb_buf = (char *)getThumbInBuf(param->width*param->height*2); - if (mArgs.in_thumb_buf == NULL) { - ALOGE("Failed to get the buffer for thumbnail"); - return JPG_FAIL; - } - - ret = (jpg_return_status)scaleDownYuv422(mArgs.in_buf, - mArgs.enc_param->width, - mArgs.enc_param->height, - mArgs.in_thumb_buf, - param->width, - param->height); - if (ret != JPG_SUCCESS) - return JPG_FAIL; - } - - ret = checkMcu(param->sample_mode, param->width, param->height, true); - if (ret != JPG_SUCCESS) - return JPG_FAIL; - - mArgs.enc_param->enc_type = JPG_THUMBNAIL; - ret = (jpg_return_status)ioctl(mDevFd, IOCTL_JPG_ENCODE, &mArgs); - if (ret != JPG_SUCCESS) { - ALOGE("Failed to encode for thumbnail"); - return JPG_FAIL; - } - - mArgs.out_thumb_buf = (char *)ioctl(mDevFd, IOCTL_JPG_GET_THUMB_STRBUF, mArgs.mmapped_addr); - -#if THUMB_DUMP - FILE *fout = NULL; - char file_name[50] = "/data/thumb.jpg"; - fout = fopen(file_name, "wb"); - if (!fout) - perror(&file_name[0]); - size_t nwrite = fwrite(mArgs.out_thumb_buf, sizeof(char), param->file_size, fout); - fclose(fout); -#endif - - ALOGD("encodeThumbImg X"); - - return JPG_SUCCESS; -} - -jpg_return_status JpegEncoder::makeExif (unsigned char *exifOut, - exif_attribute_t *exifInfo, - unsigned int *size, - bool useMainbufForThumb) -{ - if (!available) - return JPG_FAIL; - - ALOGD("makeExif E"); - - unsigned char *pCur, *pApp1Start, *pIfdStart, *pGpsIfdPtr, *pNextIfdOffset; - unsigned int tmp, LongerTagOffest = 0; - pApp1Start = pCur = exifOut; - - //2 Exif Identifier Code & TIFF Header - pCur += 4; // Skip 4 Byte for APP1 marker and length - unsigned char ExifIdentifierCode[6] = { 0x45, 0x78, 0x69, 0x66, 0x00, 0x00 }; - memcpy(pCur, ExifIdentifierCode, 6); - pCur += 6; - - /* Byte Order - little endian, Offset of IFD - 0x00000008.H */ - unsigned char TiffHeader[8] = { 0x49, 0x49, 0x2A, 0x00, 0x08, 0x00, 0x00, 0x00 }; - memcpy(pCur, TiffHeader, 8); - pIfdStart = pCur; - pCur += 8; - - //2 0th IFD TIFF Tags - if (exifInfo->enableGps) - tmp = NUM_0TH_IFD_TIFF; - else - tmp = NUM_0TH_IFD_TIFF - 1; - - memcpy(pCur, &tmp, NUM_SIZE); - pCur += NUM_SIZE; - - LongerTagOffest += 8 + NUM_SIZE + tmp*IFD_SIZE + OFFSET_SIZE; - - writeExifIfd(&pCur, EXIF_TAG_IMAGE_WIDTH, EXIF_TYPE_LONG, - 1, exifInfo->width); - writeExifIfd(&pCur, EXIF_TAG_IMAGE_HEIGHT, EXIF_TYPE_LONG, - 1, exifInfo->height); - writeExifIfd(&pCur, EXIF_TAG_MAKE, EXIF_TYPE_ASCII, - strlen((char *)exifInfo->maker) + 1, exifInfo->maker, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_MODEL, EXIF_TYPE_ASCII, - strlen((char *)exifInfo->model) + 1, exifInfo->model, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_ORIENTATION, EXIF_TYPE_SHORT, - 1, exifInfo->orientation); - writeExifIfd(&pCur, EXIF_TAG_SOFTWARE, EXIF_TYPE_ASCII, - strlen((char *)exifInfo->software) + 1, exifInfo->software, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_DATE_TIME, EXIF_TYPE_ASCII, - 20, exifInfo->date_time, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_YCBCR_POSITIONING, EXIF_TYPE_SHORT, - 1, exifInfo->ycbcr_positioning); - writeExifIfd(&pCur, EXIF_TAG_EXIF_IFD_POINTER, EXIF_TYPE_LONG, - 1, LongerTagOffest); - if (exifInfo->enableGps) { - pGpsIfdPtr = pCur; - pCur += IFD_SIZE; // Skip a ifd size for gps IFD pointer - } - - pNextIfdOffset = pCur; // Skip a offset size for next IFD offset - pCur += OFFSET_SIZE; - - //2 0th IFD Exif Private Tags - pCur = pIfdStart + LongerTagOffest; - - tmp = NUM_0TH_IFD_EXIF; - memcpy(pCur, &tmp , NUM_SIZE); - pCur += NUM_SIZE; - - LongerTagOffest += NUM_SIZE + NUM_0TH_IFD_EXIF*IFD_SIZE + OFFSET_SIZE; - - writeExifIfd(&pCur, EXIF_TAG_EXPOSURE_TIME, EXIF_TYPE_RATIONAL, - 1, &exifInfo->exposure_time, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_FNUMBER, EXIF_TYPE_RATIONAL, - 1, &exifInfo->fnumber, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_EXPOSURE_PROGRAM, EXIF_TYPE_SHORT, - 1, exifInfo->exposure_program); - writeExifIfd(&pCur, EXIF_TAG_ISO_SPEED_RATING, EXIF_TYPE_SHORT, - 1, exifInfo->iso_speed_rating); - writeExifIfd(&pCur, EXIF_TAG_EXIF_VERSION, EXIF_TYPE_UNDEFINED, - 4, exifInfo->exif_version); - writeExifIfd(&pCur, EXIF_TAG_DATE_TIME_ORG, EXIF_TYPE_ASCII, - 20, exifInfo->date_time, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_DATE_TIME_DIGITIZE, EXIF_TYPE_ASCII, - 20, exifInfo->date_time, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_SHUTTER_SPEED, EXIF_TYPE_SRATIONAL, - 1, (rational_t *)&exifInfo->shutter_speed, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_APERTURE, EXIF_TYPE_RATIONAL, - 1, &exifInfo->aperture, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_BRIGHTNESS, EXIF_TYPE_SRATIONAL, - 1, (rational_t *)&exifInfo->brightness, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_EXPOSURE_BIAS, EXIF_TYPE_SRATIONAL, - 1, (rational_t *)&exifInfo->exposure_bias, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_MAX_APERTURE, EXIF_TYPE_RATIONAL, - 1, &exifInfo->max_aperture, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_METERING_MODE, EXIF_TYPE_SHORT, - 1, exifInfo->metering_mode); - writeExifIfd(&pCur, EXIF_TAG_FLASH, EXIF_TYPE_SHORT, - 1, exifInfo->flash); - writeExifIfd(&pCur, EXIF_TAG_FOCAL_LENGTH, EXIF_TYPE_RATIONAL, - 1, &exifInfo->focal_length, &LongerTagOffest, pIfdStart); - char code[8] = { 0x00, 0x00, 0x00, 0x49, 0x49, 0x43, 0x53, 0x41 }; - int commentsLen = strlen((char *)exifInfo->user_comment) + 1; - memmove(exifInfo->user_comment + sizeof(code), exifInfo->user_comment, commentsLen); - memcpy(exifInfo->user_comment, code, sizeof(code)); - writeExifIfd(&pCur, EXIF_TAG_USER_COMMENT, EXIF_TYPE_UNDEFINED, - commentsLen + sizeof(code), exifInfo->user_comment, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_COLOR_SPACE, EXIF_TYPE_SHORT, - 1, exifInfo->color_space); - writeExifIfd(&pCur, EXIF_TAG_PIXEL_X_DIMENSION, EXIF_TYPE_LONG, - 1, exifInfo->width); - writeExifIfd(&pCur, EXIF_TAG_PIXEL_Y_DIMENSION, EXIF_TYPE_LONG, - 1, exifInfo->height); - writeExifIfd(&pCur, EXIF_TAG_EXPOSURE_MODE, EXIF_TYPE_LONG, - 1, exifInfo->exposure_mode); - writeExifIfd(&pCur, EXIF_TAG_WHITE_BALANCE, EXIF_TYPE_LONG, - 1, exifInfo->white_balance); - writeExifIfd(&pCur, EXIF_TAG_SCENCE_CAPTURE_TYPE, EXIF_TYPE_LONG, - 1, exifInfo->scene_capture_type); - tmp = 0; - memcpy(pCur, &tmp, OFFSET_SIZE); // next IFD offset - pCur += OFFSET_SIZE; - - //2 0th IFD GPS Info Tags - if (exifInfo->enableGps) { - writeExifIfd(&pGpsIfdPtr, EXIF_TAG_GPS_IFD_POINTER, EXIF_TYPE_LONG, - 1, LongerTagOffest); // GPS IFD pointer skipped on 0th IFD - - pCur = pIfdStart + LongerTagOffest; - - if (exifInfo->gps_processing_method[0] == 0) { - // don't create GPS_PROCESSING_METHOD tag if there isn't any - tmp = NUM_0TH_IFD_GPS - 1; - } else { - tmp = NUM_0TH_IFD_GPS; - } - memcpy(pCur, &tmp, NUM_SIZE); - pCur += NUM_SIZE; - - LongerTagOffest += NUM_SIZE + tmp*IFD_SIZE + OFFSET_SIZE; - - writeExifIfd(&pCur, EXIF_TAG_GPS_VERSION_ID, EXIF_TYPE_BYTE, - 4, exifInfo->gps_version_id); - writeExifIfd(&pCur, EXIF_TAG_GPS_LATITUDE_REF, EXIF_TYPE_ASCII, - 2, exifInfo->gps_latitude_ref); - writeExifIfd(&pCur, EXIF_TAG_GPS_LATITUDE, EXIF_TYPE_RATIONAL, - 3, exifInfo->gps_latitude, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_GPS_LONGITUDE_REF, EXIF_TYPE_ASCII, - 2, exifInfo->gps_longitude_ref); - writeExifIfd(&pCur, EXIF_TAG_GPS_LONGITUDE, EXIF_TYPE_RATIONAL, - 3, exifInfo->gps_longitude, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_GPS_ALTITUDE_REF, EXIF_TYPE_BYTE, - 1, exifInfo->gps_altitude_ref); - writeExifIfd(&pCur, EXIF_TAG_GPS_ALTITUDE, EXIF_TYPE_RATIONAL, - 1, &exifInfo->gps_altitude, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_GPS_TIMESTAMP, EXIF_TYPE_RATIONAL, - 3, exifInfo->gps_timestamp, &LongerTagOffest, pIfdStart); - tmp = strlen((char*)exifInfo->gps_processing_method); - if (tmp > 0) { - if (tmp > 100) { - tmp = 100; - } - unsigned char tmp_buf[100+sizeof(ExifAsciiPrefix)]; - memcpy(tmp_buf, ExifAsciiPrefix, sizeof(ExifAsciiPrefix)); - memcpy(&tmp_buf[sizeof(ExifAsciiPrefix)], exifInfo->gps_processing_method, tmp); - writeExifIfd(&pCur, EXIF_TAG_GPS_PROCESSING_METHOD, EXIF_TYPE_UNDEFINED, - tmp+sizeof(ExifAsciiPrefix), tmp_buf, &LongerTagOffest, pIfdStart); - } - writeExifIfd(&pCur, EXIF_TAG_GPS_DATESTAMP, EXIF_TYPE_ASCII, - 11, exifInfo->gps_datestamp, &LongerTagOffest, pIfdStart); - tmp = 0; - memcpy(pCur, &tmp, OFFSET_SIZE); // next IFD offset - pCur += OFFSET_SIZE; - } - - //2 1th IFD TIFF Tags - char *thumbBuf; - int thumbSize; - - if (useMainbufForThumb) { - thumbBuf = mArgs.out_buf; - thumbSize = mArgs.enc_param->file_size; - } else { - thumbBuf = mArgs.out_thumb_buf; - thumbSize = mArgs.thumb_enc_param->file_size; - } - - if (exifInfo->enableThumb && (thumbBuf != NULL) && (thumbSize > 0)) { - tmp = LongerTagOffest; - memcpy(pNextIfdOffset, &tmp, OFFSET_SIZE); // NEXT IFD offset skipped on 0th IFD - - pCur = pIfdStart + LongerTagOffest; - - tmp = NUM_1TH_IFD_TIFF; - memcpy(pCur, &tmp, NUM_SIZE); - pCur += NUM_SIZE; - - LongerTagOffest += NUM_SIZE + NUM_1TH_IFD_TIFF*IFD_SIZE + OFFSET_SIZE; - - writeExifIfd(&pCur, EXIF_TAG_IMAGE_WIDTH, EXIF_TYPE_LONG, - 1, exifInfo->widthThumb); - writeExifIfd(&pCur, EXIF_TAG_IMAGE_HEIGHT, EXIF_TYPE_LONG, - 1, exifInfo->heightThumb); - writeExifIfd(&pCur, EXIF_TAG_COMPRESSION_SCHEME, EXIF_TYPE_SHORT, - 1, exifInfo->compression_scheme); - writeExifIfd(&pCur, EXIF_TAG_ORIENTATION, EXIF_TYPE_SHORT, - 1, exifInfo->orientation); - writeExifIfd(&pCur, EXIF_TAG_X_RESOLUTION, EXIF_TYPE_RATIONAL, - 1, &exifInfo->x_resolution, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_Y_RESOLUTION, EXIF_TYPE_RATIONAL, - 1, &exifInfo->y_resolution, &LongerTagOffest, pIfdStart); - writeExifIfd(&pCur, EXIF_TAG_RESOLUTION_UNIT, EXIF_TYPE_SHORT, - 1, exifInfo->resolution_unit); - writeExifIfd(&pCur, EXIF_TAG_JPEG_INTERCHANGE_FORMAT, EXIF_TYPE_LONG, - 1, LongerTagOffest); - writeExifIfd(&pCur, EXIF_TAG_JPEG_INTERCHANGE_FORMAT_LEN, EXIF_TYPE_LONG, - 1, thumbSize); - - tmp = 0; - memcpy(pCur, &tmp, OFFSET_SIZE); // next IFD offset - pCur += OFFSET_SIZE; - - memcpy(pIfdStart + LongerTagOffest, - thumbBuf, thumbSize); - LongerTagOffest += thumbSize; - } else { - tmp = 0; - memcpy(pNextIfdOffset, &tmp, OFFSET_SIZE); // NEXT IFD offset skipped on 0th IFD - } - - unsigned char App1Marker[2] = { 0xff, 0xe1 }; - memcpy(pApp1Start, App1Marker, 2); - pApp1Start += 2; - - *size = 10 + LongerTagOffest; - tmp = *size - 2; // APP1 Maker isn't counted - unsigned char size_mm[2] = {(tmp >> 8) & 0xFF, tmp & 0xFF}; - memcpy(pApp1Start, size_mm, 2); - - ALOGD("makeExif X"); - - return JPG_SUCCESS; -} - -jpg_return_status JpegEncoder::checkMcu(sample_mode_t sampleMode, - uint32_t width, uint32_t height, bool isThumb) -{ - if (!available) - return JPG_FAIL; - - uint32_t expectedWidth = width; - uint32_t expectedHeight = height; - - switch (sampleMode){ - case JPG_422: - if (width % 16 != 0) - expectedWidth = width + 16 - (width % 16); - if (height % 8 != 0) - expectedHeight = height + 8 - (height % 8); - break; - - case JPG_420: - if (width % 16 != 0) - expectedWidth = width + 16 - (width % 16); - if (height % 16 != 0) - expectedHeight = height + 16 - (height % 16); - break; - - default: - ALOGE("Invaild sample mode"); - return JPG_FAIL; - } - - if (expectedWidth == width && expectedHeight == height) - return JPG_SUCCESS; - - ALOGW("The image is not matched for MCU"); - - uint32_t size = width*height * 2; - char *srcBuf, *dstBuf; - - if ((srcBuf = new char[size]) == NULL) { - ALOGE("Failed to allocate for srcBuf"); - return JPG_FAIL; - } - - if (!isThumb) - dstBuf = mArgs.in_buf; - else - dstBuf = mArgs.in_thumb_buf; - - memcpy(srcBuf, dstBuf, size); - bool ret = pad(srcBuf, width, height, dstBuf, expectedWidth, expectedHeight); - - delete[] srcBuf; - - return JPG_SUCCESS; -} - -bool JpegEncoder::pad(char *srcBuf, uint32_t srcWidth, uint32_t srcHight, - char *dstBuf, uint32_t dstWidth, uint32_t dstHight) -{ - if (!available) - return false; - - if (srcBuf == NULL || dstBuf == NULL) { - ALOGE("srcBuf or dstBuf is NULL"); - return false; - } - - int padW = dstWidth - srcWidth; - int padH = dstHight - srcHight; - - if ((int)(dstWidth - srcWidth) < 0 || - (int)(dstHight - srcHight) < 0) { - ALOGE("dstSize is smaller than srcSize"); - return false; - } - memset(dstBuf, 0, dstWidth*dstHight * 2); - - for (uint32_t i = 0; i < srcHight; i++) - memcpy(dstBuf + i * dstWidth * 2, srcBuf + i * srcWidth * 2, srcWidth * 2); - - return true; -} - -bool JpegEncoder::scaleDownYuv422(char *srcBuf, uint32_t srcWidth, uint32_t srcHight, - char *dstBuf, uint32_t dstWidth, uint32_t dstHight) -{ - if (!available) - return false; - - int32_t step_x, step_y; - int32_t iXsrc, iXdst; - int32_t x, y, src_y_start_pos, dst_pos, src_pos; - - if (dstWidth % 2 != 0 || dstHight % 2 != 0){ - ALOGE("scale_down_yuv422: invalid width, height for scaling"); - return false; - } - - step_x = srcWidth / dstWidth; - step_y = srcHight / dstHight; - - dst_pos = 0; - for (uint32_t y = 0; y < dstHight; y++) { - src_y_start_pos = (y * step_y * (srcWidth * 2)); - - for (uint32_t x = 0; x < dstWidth; x += 2) { - src_pos = src_y_start_pos + (x * (step_x * 2)); - - dstBuf[dst_pos++] = srcBuf[src_pos ]; - dstBuf[dst_pos++] = srcBuf[src_pos + 1]; - dstBuf[dst_pos++] = srcBuf[src_pos + 2]; - dstBuf[dst_pos++] = srcBuf[src_pos + 3]; - } - } - - return true; -} - -inline void JpegEncoder::writeExifIfd(unsigned char **pCur, - unsigned short tag, - unsigned short type, - unsigned int count, - uint32_t value) -{ - memcpy(*pCur, &tag, 2); - *pCur += 2; - memcpy(*pCur, &type, 2); - *pCur += 2; - memcpy(*pCur, &count, 4); - *pCur += 4; - memcpy(*pCur, &value, 4); - *pCur += 4; -} - -inline void JpegEncoder::writeExifIfd(unsigned char **pCur, - unsigned short tag, - unsigned short type, - unsigned int count, - unsigned char *pValue) -{ - char buf[4] = { 0,}; - - memcpy(buf, pValue, count); - memcpy(*pCur, &tag, 2); - *pCur += 2; - memcpy(*pCur, &type, 2); - *pCur += 2; - memcpy(*pCur, &count, 4); - *pCur += 4; - memcpy(*pCur, buf, 4); - *pCur += 4; -} - - -inline void JpegEncoder::writeExifIfd(unsigned char **pCur, - unsigned short tag, - unsigned short type, - unsigned int count, - unsigned char *pValue, - unsigned int *offset, - unsigned char *start) -{ - memcpy(*pCur, &tag, 2); - *pCur += 2; - memcpy(*pCur, &type, 2); - *pCur += 2; - memcpy(*pCur, &count, 4); - *pCur += 4; - memcpy(*pCur, offset, 4); - *pCur += 4; - memcpy(start + *offset, pValue, count); - *offset += count; -} - -inline void JpegEncoder::writeExifIfd(unsigned char **pCur, - unsigned short tag, - unsigned short type, - unsigned int count, - rational_t *pValue, - unsigned int *offset, - unsigned char *start) -{ - memcpy(*pCur, &tag, 2); - *pCur += 2; - memcpy(*pCur, &type, 2); - *pCur += 2; - memcpy(*pCur, &count, 4); - *pCur += 4; - memcpy(*pCur, offset, 4); - *pCur += 4; - memcpy(start + *offset, pValue, 8 * count); - *offset += 8 * count; -} - -}; |