/*
* Copyright (C) 2013 Paul Kocialkowski
*
* Based on crespo libcamera and exynos4 hal libcamera:
* Copyright 2008, The Android Open Source Project
* Copyright 2010, Samsung Electronics Co. LTD
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#define LOG_TAG "exynos_camera"
#include
#include
#include "exynos_camera.h"
/*
* FIXME: This EXIF implementation doesn't work very well, it needs to be fixed.
*/
int exynos_exif_attributes_create_static(struct exynos_camera *exynos_camera,
exif_attribute_t *exif_attributes)
{
unsigned char gps_version[] = { 0x02, 0x02, 0x00, 0x00 };
char property[PROPERTY_VALUE_MAX];
uint32_t av;
if (exynos_camera == NULL || exif_attributes == NULL)
return -EINVAL;
// Device
property_get("ro.product.brand", property, EXIF_DEF_MAKER);
strncpy((char *) exif_attributes->maker, property,
sizeof(exif_attributes->maker) - 1);
exif_attributes->maker[sizeof(exif_attributes->maker) - 1] = '\0';
property_get("ro.product.model", property, EXIF_DEF_MODEL);
strncpy((char *) exif_attributes->model, property,
sizeof(exif_attributes->model) - 1);
exif_attributes->model[sizeof(exif_attributes->model) - 1] = '\0';
property_get("ro.build.id", property, EXIF_DEF_SOFTWARE);
strncpy((char *) exif_attributes->software, property,
sizeof(exif_attributes->software) - 1);
exif_attributes->software[sizeof(exif_attributes->software) - 1] = '\0';
exif_attributes->ycbcr_positioning = EXIF_DEF_YCBCR_POSITIONING;
exif_attributes->fnumber.num = EXIF_DEF_FNUMBER_NUM;
exif_attributes->fnumber.den = EXIF_DEF_FNUMBER_DEN;
exif_attributes->exposure_program = EXIF_DEF_EXPOSURE_PROGRAM;
memcpy(exif_attributes->exif_version, EXIF_DEF_EXIF_VERSION,
sizeof(exif_attributes->exif_version));
av = APEX_FNUM_TO_APERTURE((double) exif_attributes->fnumber.num /
exif_attributes->fnumber.den);
exif_attributes->aperture.num = av;
exif_attributes->aperture.den = EXIF_DEF_APEX_DEN;
exif_attributes->max_aperture.num = av;
exif_attributes->max_aperture.den = EXIF_DEF_APEX_DEN;
strcpy((char *) exif_attributes->user_comment, EXIF_DEF_USERCOMMENTS);
exif_attributes->color_space = EXIF_DEF_COLOR_SPACE;
exif_attributes->exposure_mode = EXIF_DEF_EXPOSURE_MODE;
// GPS version
memcpy(exif_attributes->gps_version_id, gps_version, sizeof(gps_version));
exif_attributes->compression_scheme = EXIF_DEF_COMPRESSION;
exif_attributes->x_resolution.num = EXIF_DEF_RESOLUTION_NUM;
exif_attributes->x_resolution.den = EXIF_DEF_RESOLUTION_DEN;
exif_attributes->y_resolution.num = EXIF_DEF_RESOLUTION_NUM;
exif_attributes->y_resolution.den = EXIF_DEF_RESOLUTION_DEN;
exif_attributes->resolution_unit = EXIF_DEF_RESOLUTION_UNIT;
return 0;
}
int exynos_exif_attributes_create_gps(struct exynos_camera *exynos_camera,
exif_attribute_t *exif_attributes)
{
float gps_latitude_float, gps_longitude_float, gps_altitude_float;
int gps_timestamp_int;
char *gps_processing_method_string;
long gps_latitude, gps_longitude;
long gps_altitude, gps_timestamp;
double gps_latitude_abs, gps_longitude_abs, gps_altitude_abs;
struct tm time_info;
if (exynos_camera == NULL || exif_attributes == NULL)
return -EINVAL;
gps_latitude_float = exynos_param_float_get(exynos_camera, "gps-latitude");
gps_longitude_float = exynos_param_float_get(exynos_camera, "gps-longitude");
gps_altitude_float = exynos_param_float_get(exynos_camera, "gps-altitude");
if (gps_altitude_float == -1)
gps_altitude_float = (float) exynos_param_int_get(exynos_camera, "gps-altitude");
gps_timestamp_int = exynos_param_int_get(exynos_camera, "gps-timestamp");
gps_processing_method_string = exynos_param_string_get(exynos_camera, "gps-processing-method");
if (gps_latitude_float == -1 || gps_longitude_float == -1 ||
gps_altitude_float == -1 || gps_timestamp_int <= 0 ||
gps_processing_method_string == NULL) {
exif_attributes->enableGps = false;
return 0;
}
gps_latitude = (long) (gps_latitude_float * 10000000) / 1;
gps_longitude = (long) (gps_longitude_float * 10000000) / 1;
gps_altitude = (long) (gps_altitude_float * 100) / 1;
gps_timestamp = (long) gps_timestamp_int;
if (gps_latitude == 0 || gps_longitude == 0) {
exif_attributes->enableGps = false;
return 0;
}
if (gps_latitude > 0)
strcpy((char *) exif_attributes->gps_latitude_ref, "N");
else
strcpy((char *) exif_attributes->gps_latitude_ref, "S");
if (gps_longitude > 0)
strcpy((char *) exif_attributes->gps_longitude_ref, "E");
else
strcpy((char *) exif_attributes->gps_longitude_ref, "W");
if (gps_altitude > 0)
exif_attributes->gps_altitude_ref = 0;
else
exif_attributes->gps_altitude_ref = 1;
gps_latitude_abs = fabs(gps_latitude);
gps_longitude_abs = fabs(gps_longitude);
gps_altitude_abs = fabs(gps_altitude);
exif_attributes->gps_latitude[0].num = (uint32_t) gps_latitude_abs;
exif_attributes->gps_latitude[0].den = 10000000;
exif_attributes->gps_latitude[1].num = 0;
exif_attributes->gps_latitude[1].den = 1;
exif_attributes->gps_latitude[2].num = 0;
exif_attributes->gps_latitude[2].den = 1;
exif_attributes->gps_longitude[0].num = (uint32_t) gps_longitude_abs;
exif_attributes->gps_longitude[0].den = 10000000;
exif_attributes->gps_longitude[1].num = 0;
exif_attributes->gps_longitude[1].den = 1;
exif_attributes->gps_longitude[2].num = 0;
exif_attributes->gps_longitude[2].den = 1;
exif_attributes->gps_altitude.num = (uint32_t) gps_altitude_abs;
exif_attributes->gps_altitude.den = 100;
gmtime_r(&gps_timestamp, &time_info);
exif_attributes->gps_timestamp[0].num = time_info.tm_hour;
exif_attributes->gps_timestamp[0].den = 1;
exif_attributes->gps_timestamp[1].num = time_info.tm_min;
exif_attributes->gps_timestamp[1].den = 1;
exif_attributes->gps_timestamp[2].num = time_info.tm_sec;
exif_attributes->gps_timestamp[2].den = 1;
snprintf((char *) exif_attributes->gps_datestamp, sizeof(exif_attributes->gps_datestamp),
"%04d:%02d:%02d", time_info.tm_year + 1900, time_info.tm_mon + 1, time_info.tm_mday);
exif_attributes->enableGps = true;
return 0;
}
int exynos_exif_attributes_create_params(struct exynos_camera *exynos_camera,
exif_attribute_t *exif_attributes)
{
uint32_t av, tv, bv, sv, ev;
time_t time_data;
struct tm *time_info;
int rotation;
int shutter_speed;
int exposure_time;
int iso_speed;
int exposure;
int flash_results;
int rc;
if (exynos_camera == NULL || exif_attributes == NULL)
return -EINVAL;
// Picture size
exif_attributes->width = exynos_camera->picture_width;
exif_attributes->height = exynos_camera->picture_height;
// Thumbnail
exif_attributes->widthThumb = exynos_camera->jpeg_thumbnail_width;
exif_attributes->heightThumb = exynos_camera->jpeg_thumbnail_height;
exif_attributes->enableThumb = true;
// Orientation
rotation = exynos_param_int_get(exynos_camera, "rotation");
switch (rotation) {
case 90:
exif_attributes->orientation = EXIF_ORIENTATION_90;
break;
case 180:
exif_attributes->orientation = EXIF_ORIENTATION_180;
break;
case 270:
exif_attributes->orientation = EXIF_ORIENTATION_270;
break;
case 0:
default:
exif_attributes->orientation = EXIF_ORIENTATION_UP;
break;
}
// Time
time(&time_data);
time_info = localtime(&time_data);
strftime((char *) exif_attributes->date_time, sizeof(exif_attributes->date_time),
"%Y:%m:%d %H:%M:%S", time_info);
exif_attributes->focal_length.num = exynos_camera->camera_focal_length;
exif_attributes->focal_length.den = EXIF_DEF_FOCAL_LEN_DEN;
shutter_speed = 100;
rc = exynos_v4l2_g_ctrl(exynos_camera, 0, V4L2_CID_CAMERA_EXIF_TV,
&shutter_speed);
if (rc < 0)
ALOGE("%s: g ctrl failed!", __func__);
exif_attributes->shutter_speed.num = shutter_speed;
exif_attributes->shutter_speed.den = 100;
/* the exposure_time value read from the camera doesn't work
* exposure_time = shutter_speed;
* rc = exynos_v4l2_g_ctrl(exynos_camera, 0, V4L2_CID_CAMERA_EXIF_EXPTIME,
* &exposure_time);
* if (rc < 0)
* ALOGE("%s: g ctrl failed!", __func__);
*/
// calculate exposure time from the shutter speed value instead
exif_attributes->exposure_time.num = 1;
exif_attributes->exposure_time.den = APEX_SHUTTER_TO_EXPOSURE(shutter_speed);
rc = exynos_v4l2_g_ctrl(exynos_camera, 0, V4L2_CID_CAMERA_EXIF_ISO,
&iso_speed);
if (rc < 0)
ALOGE("%s: g ctrl failed!", __func__);
exif_attributes->iso_speed_rating = iso_speed;
rc = exynos_v4l2_g_ctrl(exynos_camera, 0, V4L2_CID_CAMERA_EXIF_FLASH,
&flash_results);
if (rc < 0)
ALOGE("%s: g ctrl failed!", __func__);
exif_attributes->flash = flash_results;
rc = exynos_v4l2_g_ctrl(exynos_camera, 0, V4L2_CID_CAMERA_EXIF_BV,
(int *) &bv);
if (rc < 0) {
ALOGE("%s: g ctrl failed!", __func__);
goto bv_static;
}
rc = exynos_v4l2_g_ctrl(exynos_camera, 0, V4L2_CID_CAMERA_EXIF_EBV,
(int *) &ev);
if (rc < 0) {
ALOGE("%s: g ctrl failed!", __func__);
goto bv_static;
}
goto bv_ioctl;
bv_static:
exposure = exynos_param_int_get(exynos_camera, "exposure-compensation");
if (exposure < 0)
exposure = EV_DEFAULT;
av = APEX_FNUM_TO_APERTURE((double) exif_attributes->fnumber.num /
exif_attributes->fnumber.den);
tv = APEX_EXPOSURE_TO_SHUTTER((double) exif_attributes->exposure_time.num /
exif_attributes->exposure_time.den);
sv = APEX_ISO_TO_FILMSENSITIVITY(iso_speed);
bv = av + tv - sv;
ev = exposure - EV_DEFAULT;
bv_ioctl:
exif_attributes->brightness.num = bv;
exif_attributes->brightness.den = EXIF_DEF_APEX_DEN;
if (exynos_camera->scene_mode == SCENE_MODE_BEACH_SNOW) {
exif_attributes->exposure_bias.num = EXIF_DEF_APEX_DEN;
exif_attributes->exposure_bias.den = EXIF_DEF_APEX_DEN;
} else {
exif_attributes->exposure_bias.num = ev * EXIF_DEF_APEX_DEN;
exif_attributes->exposure_bias.den = EXIF_DEF_APEX_DEN;
}
switch (exynos_camera->camera_metering) {
case METERING_CENTER:
exif_attributes->metering_mode = EXIF_METERING_CENTER;
break;
case METERING_MATRIX:
exif_attributes->metering_mode = EXIF_METERING_AVERAGE;
break;
case METERING_SPOT:
exif_attributes->metering_mode = EXIF_METERING_SPOT;
break;
default:
exif_attributes->metering_mode = EXIF_METERING_AVERAGE;
break;
}
if (exynos_camera->whitebalance == WHITE_BALANCE_AUTO ||
exynos_camera->whitebalance == WHITE_BALANCE_BASE)
exif_attributes->white_balance = EXIF_WB_AUTO;
else
exif_attributes->white_balance = EXIF_WB_MANUAL;
switch (exynos_camera->scene_mode) {
case SCENE_MODE_PORTRAIT:
exif_attributes->scene_capture_type = EXIF_SCENE_PORTRAIT;
break;
case SCENE_MODE_LANDSCAPE:
exif_attributes->scene_capture_type = EXIF_SCENE_LANDSCAPE;
break;
case SCENE_MODE_NIGHTSHOT:
exif_attributes->scene_capture_type = EXIF_SCENE_NIGHT;
break;
default:
exif_attributes->scene_capture_type = EXIF_SCENE_STANDARD;
break;
}
rc = exynos_exif_attributes_create_gps(exynos_camera, exif_attributes);
if (rc < 0) {
ALOGE("%s: Failed to create GPS attributes", __func__);
return -1;
}
return 0;
}
int exynos_exif_write_data(void *exif_data, unsigned short tag,
unsigned short type, unsigned int count, unsigned int *offset, void *start,
void *data, int length)
{
unsigned char *pointer;
int size;
if (exif_data == NULL || data == NULL || length <= 0)
return -EINVAL;
pointer = (unsigned char *) exif_data;
memcpy(pointer, &tag, sizeof(tag));
pointer += sizeof(tag);
memcpy(pointer, &type, sizeof(type));
pointer += sizeof(type);
memcpy(pointer, &count, sizeof(count));
pointer += sizeof(count);
if (offset != NULL && start != NULL) {
memcpy(pointer, offset, sizeof(*offset));
pointer += sizeof(*offset);
memcpy((void *) ((int) start + *offset), data, count * length);
*offset += count * length;
} else {
memcpy(pointer, data, count * length);
pointer += 4;
}
size = (int) pointer - (int) exif_data;
return size;
}
int exynos_exif_create(struct exynos_camera *exynos_camera,
exif_attribute_t *exif_attributes,
camera_memory_t *jpeg_thumbnail_data_memory, int jpeg_thumbnail_size,
camera_memory_t **exif_data_memory_p, int *exif_size_p)
{
// Markers
unsigned char exif_app1_marker[] = { 0xff, 0xe1 };
unsigned char exif_app1_size[] = { 0x00, 0x00 };
unsigned char exif_marker[] = { 0x45, 0x78, 0x69, 0x66, 0x00, 0x00 };
unsigned char tiff_marker[] = { 0x49, 0x49, 0x2A, 0x00, 0x08, 0x00, 0x00, 0x00 };
unsigned char user_comment_code[] = { 0x41, 0x53, 0x43, 0x49, 0x49, 0x0, 0x0, 0x0 };
unsigned char exif_ascii_prefix[] = { 0x41, 0x53, 0x43, 0x49, 0x49, 0x0, 0x0, 0x0 };
camera_memory_t *exif_data_memory = NULL;
void *exif_data;
int exif_data_size;
int exif_size;
void *exif_ifd_data_start, *exif_ifd_start, *exif_ifd_thumb, *exif_ifd_gps = NULL;
void *exif_thumb_data;
unsigned int exif_thumb_size;
unsigned char *pointer;
unsigned int offset;
void *data;
int count;
unsigned int value;
if (exynos_camera == NULL || exif_attributes == NULL ||
jpeg_thumbnail_data_memory == NULL || jpeg_thumbnail_size <= 0 ||
exif_data_memory_p == NULL || exif_size_p == NULL)
return -EINVAL;
exif_data_size = EXIF_FILE_SIZE + jpeg_thumbnail_size;
if (exynos_camera->callbacks.request_memory != NULL) {
exif_data_memory = exynos_camera->callbacks.request_memory(-1,
exif_data_size, 1, 0);
if (exif_data_memory == NULL) {
ALOGE("%s: exif memory request failed!", __func__);
goto error;
}
} else {
ALOGE("%s: No memory request function!", __func__);
goto error;
}
exif_data = exif_data_memory->data;
memset(exif_data, 0, exif_data_size);
pointer = (unsigned char *) exif_data;
exif_ifd_data_start = (void *) pointer;
// Skip 4 bytes for APP1 marker
pointer += 4;
// Copy EXIF marker
memcpy(pointer, exif_marker, sizeof(exif_marker));
pointer += sizeof(exif_marker);
// Copy TIFF marker
memcpy(pointer, tiff_marker, sizeof(tiff_marker));
exif_ifd_start = (void *) pointer;
pointer += sizeof(tiff_marker);
if (exif_attributes->enableGps)
value = NUM_0TH_IFD_TIFF;
else
value = NUM_0TH_IFD_TIFF - 1;
memcpy(pointer, &value, NUM_SIZE);
pointer += NUM_SIZE;
offset = 8 + NUM_SIZE + value * IFD_SIZE + OFFSET_SIZE;
// Write EXIF data
count = exynos_exif_write_data(pointer, EXIF_TAG_IMAGE_WIDTH,
EXIF_TYPE_LONG, 1, NULL, NULL, &exif_attributes->width, sizeof(exif_attributes->width));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_IMAGE_HEIGHT,
EXIF_TYPE_LONG, 1, NULL, NULL, &exif_attributes->height, sizeof(exif_attributes->height));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_MAKE,
EXIF_TYPE_ASCII, strlen((char *) exif_attributes->maker) + 1,
&offset, exif_ifd_start, &exif_attributes->maker, sizeof(char));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_MODEL,
EXIF_TYPE_ASCII, strlen((char *) exif_attributes->model) + 1,
&offset, exif_ifd_start, &exif_attributes->model, sizeof(char));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_ORIENTATION,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->orientation, sizeof(exif_attributes->orientation));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_SOFTWARE,
EXIF_TYPE_ASCII, strlen((char *) exif_attributes->software) + 1,
&offset, exif_ifd_start, &exif_attributes->software, sizeof(char));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_DATE_TIME,
EXIF_TYPE_ASCII, 20, &offset, exif_ifd_start, &exif_attributes->date_time, sizeof(char));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_YCBCR_POSITIONING,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->ycbcr_positioning, sizeof(exif_attributes->ycbcr_positioning));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_EXIF_IFD_POINTER,
EXIF_TYPE_LONG, 1, NULL, NULL, &offset, sizeof(offset));
pointer += count;
if (exif_attributes->enableGps) {
exif_ifd_gps = (void *) pointer;
pointer += IFD_SIZE;
}
exif_ifd_thumb = (void *) pointer;
pointer += OFFSET_SIZE;
pointer = (unsigned char *) exif_ifd_start;
pointer += offset;
value = NUM_0TH_IFD_EXIF;
memcpy(pointer, &value, NUM_SIZE);
pointer += NUM_SIZE;
offset += NUM_SIZE + NUM_0TH_IFD_EXIF * IFD_SIZE + OFFSET_SIZE;
count = exynos_exif_write_data(pointer, EXIF_TAG_EXPOSURE_TIME,
EXIF_TYPE_RATIONAL, 1, &offset, exif_ifd_start, &exif_attributes->exposure_time, sizeof(exif_attributes->exposure_time));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_FNUMBER,
EXIF_TYPE_RATIONAL, 1, &offset, exif_ifd_start, &exif_attributes->fnumber, sizeof(exif_attributes->fnumber));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_EXPOSURE_PROGRAM,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->exposure_program, sizeof(exif_attributes->exposure_program));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_ISO_SPEED_RATING,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->iso_speed_rating, sizeof(exif_attributes->iso_speed_rating));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_EXIF_VERSION,
EXIF_TYPE_UNDEFINED, 4, NULL, NULL, &exif_attributes->exif_version, sizeof(char));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_DATE_TIME_ORG,
EXIF_TYPE_ASCII, 20, &offset, exif_ifd_start, &exif_attributes->date_time, sizeof(char));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_DATE_TIME_DIGITIZE,
EXIF_TYPE_ASCII, 20, &offset, exif_ifd_start, &exif_attributes->date_time, sizeof(char));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_SHUTTER_SPEED,
EXIF_TYPE_SRATIONAL, 1, &offset, exif_ifd_start, &exif_attributes->shutter_speed, sizeof(exif_attributes->shutter_speed));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_APERTURE,
EXIF_TYPE_RATIONAL, 1, &offset, exif_ifd_start, &exif_attributes->aperture, sizeof(exif_attributes->aperture));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_BRIGHTNESS,
EXIF_TYPE_SRATIONAL, 1, &offset, exif_ifd_start, &exif_attributes->brightness, sizeof(exif_attributes->brightness));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_EXPOSURE_BIAS,
EXIF_TYPE_SRATIONAL, 1, &offset, exif_ifd_start, &exif_attributes->exposure_bias, sizeof(exif_attributes->exposure_bias));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_MAX_APERTURE,
EXIF_TYPE_RATIONAL, 1, &offset, exif_ifd_start, &exif_attributes->max_aperture, sizeof(exif_attributes->max_aperture));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_METERING_MODE,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->metering_mode, sizeof(exif_attributes->metering_mode));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_FLASH,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->flash, sizeof(exif_attributes->flash));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_FOCAL_LENGTH,
EXIF_TYPE_RATIONAL, 1, &offset, exif_ifd_start, &exif_attributes->focal_length, sizeof(exif_attributes->focal_length));
pointer += count;
value = strlen((char *) exif_attributes->user_comment) + 1;
memmove(exif_attributes->user_comment + sizeof(user_comment_code), exif_attributes->user_comment, value);
memcpy(exif_attributes->user_comment, user_comment_code, sizeof(user_comment_code));
count = exynos_exif_write_data(pointer, EXIF_TAG_USER_COMMENT,
EXIF_TYPE_UNDEFINED, value + sizeof(user_comment_code), &offset, exif_ifd_start, &exif_attributes->user_comment, sizeof(char));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_COLOR_SPACE,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->color_space, sizeof(exif_attributes->color_space));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_PIXEL_X_DIMENSION,
EXIF_TYPE_LONG, 1, NULL, NULL, &exif_attributes->width, sizeof(exif_attributes->width));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_PIXEL_Y_DIMENSION,
EXIF_TYPE_LONG, 1, NULL, NULL, &exif_attributes->height, sizeof(exif_attributes->height));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_EXPOSURE_MODE,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->exposure_mode, sizeof(exif_attributes->exposure_mode));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_WHITE_BALANCE,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->white_balance, sizeof(exif_attributes->white_balance));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_SCENCE_CAPTURE_TYPE,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->scene_capture_type, sizeof(exif_attributes->scene_capture_type));
pointer += count;
value = 0;
memcpy(pointer, &value, OFFSET_SIZE);
pointer += OFFSET_SIZE;
// GPS
if (exif_attributes->enableGps) {
pointer = (unsigned char *) exif_ifd_gps;
count = exynos_exif_write_data(pointer, EXIF_TAG_GPS_IFD_POINTER,
EXIF_TYPE_LONG, 1, NULL, NULL, &offset, sizeof(offset));
pointer = (unsigned char *) exif_ifd_start + offset;
if (exif_attributes->gps_processing_method[0] == 0)
value = NUM_0TH_IFD_GPS - 1;
else
value = NUM_0TH_IFD_GPS;
memcpy(pointer, &value, NUM_SIZE);
pointer += NUM_SIZE;
offset += NUM_SIZE + value * IFD_SIZE + OFFSET_SIZE;
count = exynos_exif_write_data(pointer, EXIF_TAG_GPS_VERSION_ID,
EXIF_TYPE_BYTE, 4, NULL, NULL, &exif_attributes->gps_version_id, sizeof(char));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_GPS_LATITUDE_REF,
EXIF_TYPE_ASCII, 2, NULL, NULL, &exif_attributes->gps_latitude_ref, sizeof(char));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_GPS_LATITUDE,
EXIF_TYPE_RATIONAL, 3, &offset, exif_ifd_start, &exif_attributes->gps_latitude, sizeof(exif_attributes->gps_latitude[0]));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_GPS_LONGITUDE_REF,
EXIF_TYPE_ASCII, 2, NULL, NULL, &exif_attributes->gps_longitude_ref, sizeof(char));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_GPS_LONGITUDE,
EXIF_TYPE_RATIONAL, 3, &offset, exif_ifd_start, &exif_attributes->gps_longitude, sizeof(exif_attributes->gps_longitude[0]));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_GPS_ALTITUDE_REF,
EXIF_TYPE_BYTE, 1, NULL, NULL, &exif_attributes->gps_altitude_ref, sizeof(char));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_GPS_ALTITUDE,
EXIF_TYPE_RATIONAL, 1, &offset, exif_ifd_start, &exif_attributes->gps_altitude, sizeof(exif_attributes->gps_altitude));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_GPS_TIMESTAMP,
EXIF_TYPE_RATIONAL, 3, &offset, exif_ifd_start, &exif_attributes->gps_timestamp, sizeof(exif_attributes->gps_timestamp[0]));
pointer += count;
value = strlen((char *) exif_attributes->gps_processing_method);
if (value > 0) {
value = value > 100 ? 100 : value;
data = calloc(1, value + sizeof(exif_ascii_prefix));
memcpy(data, &exif_ascii_prefix, sizeof(exif_ascii_prefix));
memcpy((void *) ((int) data + (int) sizeof(exif_ascii_prefix)), exif_attributes->gps_processing_method, value);
count = exynos_exif_write_data(pointer, EXIF_TAG_GPS_PROCESSING_METHOD,
EXIF_TYPE_UNDEFINED, value + sizeof(exif_ascii_prefix), &offset, exif_ifd_start, data, sizeof(char));
pointer += count;
free(data);
}
count = exynos_exif_write_data(pointer, EXIF_TAG_GPS_DATESTAMP,
EXIF_TYPE_ASCII, 11, &offset, exif_ifd_start, &exif_attributes->gps_datestamp, 1);
pointer += count;
value = 0;
memcpy(pointer, &value, OFFSET_SIZE);
pointer += OFFSET_SIZE;
}
if (exif_attributes->enableThumb && jpeg_thumbnail_data_memory != NULL && jpeg_thumbnail_size > 0) {
exif_thumb_size = (unsigned int) jpeg_thumbnail_size;
exif_thumb_data = (void *) jpeg_thumbnail_data_memory->data;
value = offset;
memcpy(exif_ifd_thumb, &value, OFFSET_SIZE);
pointer = (unsigned char *) ((int) exif_ifd_start + (int) offset);
value = NUM_1TH_IFD_TIFF;
memcpy(pointer, &value, NUM_SIZE);
pointer += NUM_SIZE;
offset += NUM_SIZE + NUM_1TH_IFD_TIFF * IFD_SIZE + OFFSET_SIZE;
count = exynos_exif_write_data(pointer, EXIF_TAG_IMAGE_WIDTH,
EXIF_TYPE_LONG, 1, NULL, NULL, &exif_attributes->widthThumb, sizeof(exif_attributes->widthThumb));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_IMAGE_HEIGHT,
EXIF_TYPE_LONG, 1, NULL, NULL, &exif_attributes->heightThumb, sizeof(exif_attributes->heightThumb));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_COMPRESSION_SCHEME,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->compression_scheme, sizeof(exif_attributes->compression_scheme));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_ORIENTATION,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->orientation, sizeof(exif_attributes->orientation));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_X_RESOLUTION,
EXIF_TYPE_RATIONAL, 1, &offset, exif_ifd_start, &exif_attributes->x_resolution, sizeof(exif_attributes->x_resolution));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_Y_RESOLUTION,
EXIF_TYPE_RATIONAL, 1, &offset, exif_ifd_start, &exif_attributes->y_resolution, sizeof(exif_attributes->y_resolution));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_RESOLUTION_UNIT,
EXIF_TYPE_SHORT, 1, NULL, NULL, &exif_attributes->resolution_unit, sizeof(exif_attributes->resolution_unit));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_JPEG_INTERCHANGE_FORMAT,
EXIF_TYPE_LONG, 1, NULL, NULL, &offset, sizeof(offset));
pointer += count;
count = exynos_exif_write_data(pointer, EXIF_TAG_JPEG_INTERCHANGE_FORMAT_LEN,
EXIF_TYPE_LONG, 1, NULL, NULL, &exif_thumb_size, sizeof(exif_thumb_size));
pointer += count;
value = 0;
memcpy(pointer, &value, OFFSET_SIZE);
pointer = (unsigned char *) ((int) exif_ifd_start + (int) offset);
memcpy(pointer, exif_thumb_data, exif_thumb_size);
offset += exif_thumb_size;
} else {
value = 0;
memcpy(exif_ifd_thumb, &value, OFFSET_SIZE);
}
pointer = (unsigned char *) exif_ifd_data_start;
memcpy(pointer, exif_app1_marker, sizeof(exif_app1_marker));
pointer += sizeof(exif_app1_marker);
exif_size = offset + 10;
value = exif_size - 2;
exif_app1_size[0] = (value >> 8) & 0xff;
exif_app1_size[1] = value & 0xff;
memcpy(pointer, exif_app1_size, sizeof(exif_app1_size));
*exif_data_memory_p = exif_data_memory;
*exif_size_p = exif_size;
return 0;
error:
if (exif_data_memory != NULL && exif_data_memory->release != NULL)
exif_data_memory->release(exif_data_memory);
*exif_data_memory_p = NULL;
*exif_size_p = 0;
return -1;
}