1355 lines
40 KiB
C
1355 lines
40 KiB
C
#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdio.h>
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#ifdef HAVE_EVIL
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# include <Evil.h>
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#endif
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#include <setjmp.h>
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#include <jpeglib.h>
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#include "evas_common.h"
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#include "evas_private.h"
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typedef struct _JPEG_error_mgr *emptr;
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struct _JPEG_error_mgr
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{
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struct jpeg_error_mgr pub;
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jmp_buf setjmp_buffer;
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};
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typedef struct _Evas_Loader_Internal Evas_Loader_Internal;
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struct _Evas_Loader_Internal
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{
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Eina_File *f;
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Evas_Image_Load_Opts *opts;
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};
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static void _JPEGFatalErrorHandler(j_common_ptr cinfo);
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static void _JPEGErrorHandler(j_common_ptr cinfo);
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static void _JPEGErrorHandler2(j_common_ptr cinfo, int msg_level);
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static int _get_orientation_app0(char *app0_head, size_t remain_length);
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static int _get_orientation_app1(char *app1_head, size_t remain_length);
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static int _get_orientation(void *map, size_t length);
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#if 0 /* not used at the moment */
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static int evas_image_load_file_data_jpeg_alpha_internal(Image_Entry *ie, FILE *f) EINA_ARG_NONNULL(1, 2);
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#endif
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static void
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_JPEGFatalErrorHandler(j_common_ptr cinfo)
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{
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emptr errmgr;
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errmgr = (emptr) cinfo->err;
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/* cinfo->err->output_message(cinfo);*/
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longjmp(errmgr->setjmp_buffer, 1);
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return;
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}
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static void
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_JPEGErrorHandler(j_common_ptr cinfo EINA_UNUSED)
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{
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/* emptr errmgr; */
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/* errmgr = (emptr) cinfo->err; */
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/* cinfo->err->output_message(cinfo);*/
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/* longjmp(errmgr->setjmp_buffer, 1);*/
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return;
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}
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static void
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_JPEGErrorHandler2(j_common_ptr cinfo EINA_UNUSED, int msg_level EINA_UNUSED)
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{
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/* emptr errmgr; */
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/* errmgr = (emptr) cinfo->err; */
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/* cinfo->err->output_message(cinfo);*/
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/* longjmp(errmgr->setjmp_buffer, 1);*/
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return;
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}
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struct jpeg_membuf_src
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{
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struct jpeg_source_mgr pub;
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const unsigned char *buf;
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size_t len;
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struct jpeg_membuf_src *self;
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};
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static void
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_evas_jpeg_membuf_src_init(j_decompress_ptr cinfo EINA_UNUSED)
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{
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}
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static boolean
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_evas_jpeg_membuf_src_fill(j_decompress_ptr cinfo)
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{
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static const JOCTET jpeg_eoi[2] = { 0xFF, JPEG_EOI };
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struct jpeg_membuf_src *src = (struct jpeg_membuf_src *)cinfo->src;
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src->pub.bytes_in_buffer = sizeof(jpeg_eoi);
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src->pub.next_input_byte = jpeg_eoi;
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return TRUE;
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}
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static void
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_evas_jpeg_membuf_src_skip(j_decompress_ptr cinfo,
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long num_bytes)
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{
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struct jpeg_membuf_src *src = (struct jpeg_membuf_src *)cinfo->src;
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if ((((long)src->pub.bytes_in_buffer - (long)src->len) > num_bytes) ||
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((long)src->pub.bytes_in_buffer < num_bytes))
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{
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(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo));
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return;
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}
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src->pub.bytes_in_buffer -= num_bytes;
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src->pub.next_input_byte += num_bytes;
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}
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static void
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_evas_jpeg_membuf_src_term(j_decompress_ptr cinfo)
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{
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struct jpeg_membuf_src *src = (struct jpeg_membuf_src *)cinfo->src;
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if (!src) return;
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free(src);
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cinfo->src = NULL;
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}
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static int
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_evas_jpeg_membuf_src(j_decompress_ptr cinfo,
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void *map, size_t length)
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{
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struct jpeg_membuf_src *src;
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src = calloc(1, sizeof(*src));
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if (!src)
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return -1;
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src->self = src;
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cinfo->src = &src->pub;
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src->buf = map;
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src->len = length;
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src->pub.init_source = _evas_jpeg_membuf_src_init;
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src->pub.fill_input_buffer = _evas_jpeg_membuf_src_fill;
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src->pub.skip_input_data = _evas_jpeg_membuf_src_skip;
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src->pub.resync_to_restart = jpeg_resync_to_restart;
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src->pub.term_source = _evas_jpeg_membuf_src_term;
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src->pub.bytes_in_buffer = src->len;
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src->pub.next_input_byte = src->buf;
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return 0;
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}
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/*! Magic number for EXIF header, App0, App1*/
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static const unsigned char ExifHeader[] = {0x45, 0x78, 0x69, 0x66, 0x00, 0x00};
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static const unsigned char JfifHeader[] = {0x4A, 0x46, 0x49, 0x46, 0x00};
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static const unsigned char JfxxHeader[] = {0x4A, 0x46, 0x58, 0x58, 0x00};
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static const unsigned char App0[] = {0xff, 0xe0};
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static const unsigned char App1[] = {0xff, 0xe1};
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typedef enum {
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EXIF_BYTE_ALIGN_II,
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EXIF_BYTE_ALIGN_MM
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} ExifByteAlign;
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static int
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_get_orientation_app0(char *app0_head, size_t remain_length)
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{
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unsigned int length = 0;
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unsigned int w = 0, h = 0;
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unsigned int format = 0;
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unsigned int data_size = 0;
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char *p;
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/* p is appn's start pointer excluding app0 marker */
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p = app0_head + 2;
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length = ((*p << 8) + *(p + 1));
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/* JFIF segment format */
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if (!memcmp(p + 2, JfifHeader, sizeof (JfifHeader)))
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{
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format = 3;
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w = *(p + 14);
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h = *(p + 15);
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}
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else if (!memcmp(p + 2, JfxxHeader, sizeof (JfxxHeader)))
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{
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if (*(p + 7) == 0x11)
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format = 1;
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else
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format = 3;
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w = *(p + 8);
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h = *(p + 9);
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}
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data_size = format * w * h;
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p += length + data_size;
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if (!memcmp(p, App1, sizeof (App1)))
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return _get_orientation_app1(p, remain_length - (2 + length + data_size));
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else
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return 0;
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}
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static int
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_get_orientation_app1(char *app1_head, size_t remain_length)
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{
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char *buf;
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char orientation[2];
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ExifByteAlign byte_align;
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unsigned int num_directory = 0;
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unsigned int i, j;
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int direction;
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/* start of app1 frame */
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buf = app1_head;
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/* 1. check 4~9bype with Exif Header (0x45786966 0000) */
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if (memcmp(buf + 4, ExifHeader, sizeof (ExifHeader))) return 0;
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/* 2. get 10&11 byte get info of "II(0x4949)" or "MM(0x4d4d)" */
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/* 3. get [18]&[19] get directory entry # */
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if (!strncmp(buf + 10, "MM", 2))
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{
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byte_align = EXIF_BYTE_ALIGN_MM;
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num_directory = ((*(buf + 18) << 8) + *(buf + 19));
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orientation[0] = 0x01;
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orientation[1] = 0x12;
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}
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else if (!strncmp(buf + 10, "II", 2))
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{
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byte_align = EXIF_BYTE_ALIGN_II;
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num_directory = ((*(buf + 19) << 8) + *(buf + 18));
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orientation[0] = 0x12;
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orientation[1] = 0x01;
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}
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else return 0;
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buf = app1_head + 20;
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if (remain_length < (12 * num_directory + 20)) return 0;
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j = 0;
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for (i = 0; i < num_directory; i++ )
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{
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if (!strncmp(buf + j, orientation, 2))
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{
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/*get orientation tag */
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if (byte_align == EXIF_BYTE_ALIGN_MM)
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direction = *(buf+ j + 9);
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else direction = *(buf+ j + 8);
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switch (direction)
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{
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case 3:
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case 4:
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return 180;
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case 6:
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case 7:
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return 90;
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case 5:
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case 8:
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return 270;
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default:
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return 0;
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}
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}
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else
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j = j + 12;
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}
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return 0;
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}
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static int
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_get_orientation(void *map, size_t length)
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{
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char *buf;
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/* open file and get 22 byte frome file */
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if (!map) return 0;
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/* 1. read 22byte */
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if (length < 22) return 0;
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buf = (char *)map;
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/* 2. check 2,3 bypte with APP0(0xFFE0) or APP1(0xFFE1) */
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if (!memcmp(buf + 2, App0, sizeof (App0)))
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return _get_orientation_app0(buf + 2, length - 2);
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if (!memcmp(buf + 2, App1, sizeof (App1)))
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return _get_orientation_app1(buf + 2, length - 2);
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return 0;
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}
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static Eina_Bool
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evas_image_load_file_head_jpeg_internal(unsigned int *w, unsigned int *h,
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unsigned char *scale, unsigned char *rotated,
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Evas_Image_Load_Opts *opts,
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void *map, size_t length,
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int *error)
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{
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unsigned int scalew, scaleh;
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struct jpeg_decompress_struct cinfo;
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struct _JPEG_error_mgr jerr;
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/* for rotation decoding */
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int degree = 0;
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Eina_Bool change_wh = EINA_FALSE;
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unsigned int load_opts_w = 0, load_opts_h = 0;
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memset(&cinfo, 0, sizeof(cinfo));
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cinfo.err = jpeg_std_error(&(jerr.pub));
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jerr.pub.error_exit = _JPEGFatalErrorHandler;
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jerr.pub.emit_message = _JPEGErrorHandler2;
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jerr.pub.output_message = _JPEGErrorHandler;
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if (setjmp(jerr.setjmp_buffer))
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{
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jpeg_destroy_decompress(&cinfo);
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_evas_jpeg_membuf_src_term(&cinfo);
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if (cinfo.saw_JFIF_marker)
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*error = EVAS_LOAD_ERROR_CORRUPT_FILE;
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else
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*error = EVAS_LOAD_ERROR_UNKNOWN_FORMAT;
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return EINA_FALSE;
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}
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jpeg_create_decompress(&cinfo);
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if (_evas_jpeg_membuf_src(&cinfo, map, length))
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{
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jpeg_destroy_decompress(&cinfo);
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_evas_jpeg_membuf_src_term(&cinfo);
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*error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
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return EINA_FALSE;
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}
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jpeg_read_header(&cinfo, TRUE);
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cinfo.do_fancy_upsampling = FALSE;
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cinfo.do_block_smoothing = FALSE;
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cinfo.dct_method = JDCT_ISLOW; // JDCT_FLOAT JDCT_IFAST(quality loss)
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cinfo.dither_mode = JDITHER_ORDERED;
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jpeg_start_decompress(&cinfo);
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/* rotation decoding */
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if (opts->orientation)
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{
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degree = _get_orientation(map, length);
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if (degree != 0)
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{
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opts->degree = degree;
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*rotated = EINA_TRUE;
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if (degree == 90 || degree == 270)
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change_wh = EINA_TRUE;
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}
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}
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/* head decoding */
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*w = cinfo.output_width;
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*h = cinfo.output_height;
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if ((*w < 1) || (*h < 1) || (*w > IMG_MAX_SIZE) || (*h > IMG_MAX_SIZE) ||
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(IMG_TOO_BIG(*w, *h)))
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{
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jpeg_destroy_decompress(&cinfo);
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_evas_jpeg_membuf_src_term(&cinfo);
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if (IMG_TOO_BIG(*w, *h))
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*error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
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else
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*error = EVAS_LOAD_ERROR_GENERIC;
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return EINA_FALSE;
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}
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if (opts->scale_down_by > 1)
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{
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*w /= opts->scale_down_by;
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*h /= opts->scale_down_by;
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}
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else if (opts->dpi > 0.0)
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{
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*w = (*w * opts->dpi) / 90.0;
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*h = (*h * opts->dpi) / 90.0;
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}
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else if ((opts->w > 0) && (opts->h > 0))
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{
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unsigned int w2 = *w, h2 = *h;
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/* user set load_opts' w,h on the assumption
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that image already rotated according to it's orientation info */
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if (change_wh)
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{
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load_opts_w = opts->w;
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load_opts_h = opts->h;
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opts->w = load_opts_h;
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opts->h = load_opts_w;
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}
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if (opts->w > 0)
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{
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w2 = opts->w;
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h2 = (opts->w * *h) / *w;
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if ((opts->h > 0) && (h2 > opts->h))
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{
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unsigned int w3;
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h2 = opts->h;
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w3 = (opts->h * *w) / *h;
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if (w3 > w2)
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w2 = w3;
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}
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}
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else if (opts->h > 0)
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{
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h2 = opts->h;
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w2 = (opts->h * *w) / *h;
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}
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*w = w2;
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*h = h2;
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if (change_wh)
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{
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opts->w = load_opts_w;
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opts->h = load_opts_h;
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}
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}
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if (*w < 1) *w = 1;
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if (*h < 1) *h = 1;
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if ((*w != cinfo.output_width) || (*h != cinfo.output_height))
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{
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scalew = cinfo.output_width / *w;
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scaleh = cinfo.output_height / *h;
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*scale = scalew;
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if (scaleh < scalew) *scale = scaleh;
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if (*scale > 8) *scale = 8;
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else if (*scale < 1) *scale = 1;
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if (*scale == 3) *scale = 2;
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else if (*scale == 5) *scale = 4;
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else if (*scale == 6) *scale = 4;
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else if (*scale == 7) *scale = 4;
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}
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if (*scale > 1)
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{
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jpeg_destroy_decompress(&cinfo);
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_evas_jpeg_membuf_src_term(&cinfo);
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jpeg_create_decompress(&cinfo);
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if (_evas_jpeg_membuf_src(&cinfo, map, length))
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{
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jpeg_destroy_decompress(&cinfo);
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_evas_jpeg_membuf_src_term(&cinfo);
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*error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
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return EINA_FALSE;
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}
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jpeg_read_header(&cinfo, TRUE);
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cinfo.do_fancy_upsampling = FALSE;
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cinfo.do_block_smoothing = FALSE;
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cinfo.scale_num = 1;
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cinfo.scale_denom = *scale;
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jpeg_calc_output_dimensions(&(cinfo));
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jpeg_start_decompress(&cinfo);
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}
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*w = cinfo.output_width;
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*h = cinfo.output_height;
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// be nice and clip region to image. if its totally outside, fail load
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if ((opts->region.w > 0) && (opts->region.h > 0))
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{
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unsigned int load_region_x = 0, load_region_y = 0;
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unsigned int load_region_w = 0, load_region_h = 0;
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if (*rotated)
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{
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load_region_x = opts->region.x;
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load_region_y = opts->region.y;
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load_region_w = opts->region.w;
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load_region_h = opts->region.h;
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switch (degree)
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{
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case 90:
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opts->region.x = load_region_y;
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opts->region.y = *h - (load_region_x + load_region_w);
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opts->region.w = load_region_h;
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opts->region.h = load_region_w;
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break;
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case 180:
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opts->region.x = *w - (load_region_x+ load_region_w);
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opts->region.y = *h - (load_region_y + load_region_h);
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break;
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case 270:
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opts->region.x = *w - (load_region_y + load_region_h);
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opts->region.y = load_region_x;
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opts->region.w = load_region_h;
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opts->region.h = load_region_w;
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break;
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default:
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break;
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}
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}
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RECTS_CLIP_TO_RECT(opts->region.x, opts->region.y,
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opts->region.w, opts->region.h,
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0, 0, *w, *h);
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if ((opts->region.w <= 0) || (opts->region.h <= 0))
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{
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jpeg_destroy_decompress(&cinfo);
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_evas_jpeg_membuf_src_term(&cinfo);
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*error = EVAS_LOAD_ERROR_GENERIC;
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return EINA_FALSE;
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}
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*w = opts->region.w;
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*h = opts->region.h;
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if (*rotated)
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{
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opts->region.x = load_region_x;
|
|
opts->region.y = load_region_y;
|
|
opts->region.w = load_region_w;
|
|
opts->region.h = load_region_h;
|
|
}
|
|
}
|
|
/* end head decoding */
|
|
|
|
if (change_wh)
|
|
{
|
|
unsigned int tmp;
|
|
tmp = *w;
|
|
*w = *h;
|
|
*h = tmp;
|
|
}
|
|
jpeg_destroy_decompress(&cinfo);
|
|
_evas_jpeg_membuf_src_term(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_NONE;
|
|
return EINA_TRUE;
|
|
}
|
|
|
|
/*
|
|
static double
|
|
get_time(void)
|
|
{
|
|
struct timeval timev;
|
|
|
|
gettimeofday(&timev, NULL);
|
|
return (double)timev.tv_sec + (((double)timev.tv_usec) / 1000000);
|
|
}
|
|
*/
|
|
|
|
static Eina_Bool
|
|
evas_image_load_file_data_jpeg_internal(Evas_Image_Load_Opts *opts,
|
|
Evas_Image_Property *prop,
|
|
void *pixels,
|
|
void *map, size_t size,
|
|
int *error)
|
|
{
|
|
unsigned int w, h;
|
|
struct jpeg_decompress_struct cinfo;
|
|
struct _JPEG_error_mgr jerr;
|
|
DATA8 *ptr, *line[16], *data;
|
|
DATA32 *ptr2, *ptr_rotate = NULL;
|
|
unsigned int x, y, l, i, scans;
|
|
int region = 0;
|
|
/* rotation setting */
|
|
unsigned int ie_w = 0, ie_h = 0;
|
|
unsigned int load_region_x = 0, load_region_y = 0;
|
|
unsigned int load_region_w = 0, load_region_h = 0;
|
|
volatile int degree = 0;
|
|
volatile Eina_Bool change_wh = EINA_FALSE;
|
|
Eina_Bool line_done = EINA_FALSE;
|
|
|
|
memset(&cinfo, 0, sizeof(cinfo));
|
|
if (prop->rotated)
|
|
{
|
|
degree = opts->degree;
|
|
if (degree == 90 || degree == 270)
|
|
change_wh = EINA_TRUE;
|
|
}
|
|
|
|
cinfo.err = jpeg_std_error(&(jerr.pub));
|
|
jerr.pub.error_exit = _JPEGFatalErrorHandler;
|
|
jerr.pub.emit_message = _JPEGErrorHandler2;
|
|
jerr.pub.output_message = _JPEGErrorHandler;
|
|
if (setjmp(jerr.setjmp_buffer))
|
|
{
|
|
jpeg_destroy_decompress(&cinfo);
|
|
_evas_jpeg_membuf_src_term(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_CORRUPT_FILE;
|
|
return EINA_FALSE;
|
|
}
|
|
jpeg_create_decompress(&cinfo);
|
|
|
|
if (_evas_jpeg_membuf_src(&cinfo, map, size))
|
|
{
|
|
jpeg_destroy_decompress(&cinfo);
|
|
_evas_jpeg_membuf_src_term(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
|
|
return 0;
|
|
}
|
|
|
|
jpeg_read_header(&cinfo, TRUE);
|
|
cinfo.do_fancy_upsampling = FALSE;
|
|
cinfo.do_block_smoothing = FALSE;
|
|
cinfo.dct_method = JDCT_ISLOW; // JDCT_FLOAT JDCT_IFAST(quality loss)
|
|
cinfo.dither_mode = JDITHER_ORDERED;
|
|
|
|
if (prop->scale > 1)
|
|
{
|
|
cinfo.scale_num = 1;
|
|
cinfo.scale_denom = prop->scale;
|
|
}
|
|
|
|
/* Colorspace conversion options */
|
|
/* libjpeg can do the following conversions: */
|
|
/* GRAYSCLAE => RGB YCbCr => RGB and YCCK => CMYK */
|
|
switch (cinfo.jpeg_color_space)
|
|
{
|
|
case JCS_UNKNOWN:
|
|
break;
|
|
case JCS_GRAYSCALE:
|
|
case JCS_RGB:
|
|
case JCS_YCbCr:
|
|
cinfo.out_color_space = JCS_RGB;
|
|
break;
|
|
case JCS_CMYK:
|
|
case JCS_YCCK:
|
|
cinfo.out_color_space = JCS_CMYK;
|
|
break;
|
|
default:
|
|
cinfo.out_color_space = JCS_RGB;
|
|
break;
|
|
}
|
|
|
|
/* head decoding */
|
|
jpeg_calc_output_dimensions(&(cinfo));
|
|
jpeg_start_decompress(&cinfo);
|
|
|
|
w = cinfo.output_width;
|
|
h = cinfo.output_height;
|
|
|
|
if (change_wh)
|
|
{
|
|
ie_w = prop->h;
|
|
ie_h = prop->w;
|
|
}
|
|
else
|
|
{
|
|
ie_w = prop->w;
|
|
ie_h = prop->h;
|
|
}
|
|
|
|
if ((opts->region.w > 0) && (opts->region.h > 0))
|
|
{
|
|
region = 1;
|
|
|
|
if (prop->rotated)
|
|
{
|
|
load_region_x = opts->region.x;
|
|
load_region_y = opts->region.y;
|
|
load_region_w = opts->region.w;
|
|
load_region_h = opts->region.h;
|
|
|
|
switch (degree)
|
|
{
|
|
case 90:
|
|
opts->region.x = load_region_y;
|
|
opts->region.y = h - (load_region_x + load_region_w);
|
|
opts->region.w = load_region_h;
|
|
opts->region.h = load_region_w;
|
|
break;
|
|
case 180:
|
|
opts->region.x = w - (load_region_x+ load_region_w);
|
|
opts->region.y = h - (load_region_y + load_region_h);
|
|
|
|
break;
|
|
case 270:
|
|
opts->region.x = w - (load_region_y + load_region_h);
|
|
opts->region.y = load_region_x;
|
|
opts->region.w = load_region_h;
|
|
opts->region.h = load_region_w;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
}
|
|
#ifdef BUILD_LOADER_JPEG_REGION
|
|
cinfo.region_x = opts->region.x;
|
|
cinfo.region_y = opts->region.y;
|
|
cinfo.region_w = opts->region.w;
|
|
cinfo.region_h = opts->region.h;
|
|
#endif
|
|
}
|
|
if ((!region) && ((w != ie_w) || (h != ie_h)))
|
|
{
|
|
// race condition, the file could have change from when we call header
|
|
// this test will not solve the problem with region code.
|
|
jpeg_destroy_decompress(&cinfo);
|
|
_evas_jpeg_membuf_src_term(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_GENERIC;
|
|
return EINA_FALSE;
|
|
}
|
|
if ((region) &&
|
|
((ie_w != opts->region.w) || (ie_h != opts->region.h)))
|
|
{
|
|
jpeg_destroy_decompress(&cinfo);
|
|
_evas_jpeg_membuf_src_term(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_GENERIC;
|
|
return EINA_FALSE;
|
|
/* ie_w = opts->region.w; */
|
|
/* ie_h = opts->region.h; */
|
|
/* if (change_wh) */
|
|
/* { */
|
|
/* ie->w = ie_h; */
|
|
/* ie->h = ie_w; */
|
|
/* } */
|
|
/* else */
|
|
/* { */
|
|
/* ie->w = ie_w; */
|
|
/* ie->h = ie_h; */
|
|
/* } */
|
|
}
|
|
|
|
if (!(((cinfo.out_color_space == JCS_RGB) &&
|
|
((cinfo.output_components == 3) || (cinfo.output_components == 1))) ||
|
|
((cinfo.out_color_space == JCS_CMYK) && (cinfo.output_components == 4))))
|
|
{
|
|
jpeg_destroy_decompress(&cinfo);
|
|
_evas_jpeg_membuf_src_term(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_UNKNOWN_FORMAT;
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
/* end head decoding */
|
|
/* data decoding */
|
|
if (cinfo.rec_outbuf_height > 16)
|
|
{
|
|
jpeg_destroy_decompress(&cinfo);
|
|
_evas_jpeg_membuf_src_term(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_UNKNOWN_FORMAT;
|
|
return EINA_FALSE;
|
|
}
|
|
data = alloca(w * 16 * cinfo.output_components);
|
|
if ((prop->rotated) && change_wh)
|
|
{
|
|
ptr2 = malloc(w * h * sizeof(DATA32));
|
|
ptr_rotate = ptr2;
|
|
}
|
|
else
|
|
ptr2 = pixels;
|
|
|
|
if (!ptr2)
|
|
{
|
|
*error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
/* We handle first CMYK (4 components) */
|
|
if (cinfo.output_components == 4)
|
|
{
|
|
// FIXME: handle region
|
|
for (i = 0; (int)i < cinfo.rec_outbuf_height; i++)
|
|
line[i] = data + (i * w * 4);
|
|
for (l = 0; l < h; l += cinfo.rec_outbuf_height)
|
|
{
|
|
jpeg_read_scanlines(&cinfo, line, cinfo.rec_outbuf_height);
|
|
scans = cinfo.rec_outbuf_height;
|
|
if ((h - l) < scans) scans = h - l;
|
|
ptr = data;
|
|
if (!region)
|
|
{
|
|
for (y = 0; y < scans; y++)
|
|
{
|
|
if (cinfo.saw_Adobe_marker)
|
|
{
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
/* According to libjpeg doc, Photoshop inverse the values of C, M, Y and K, */
|
|
/* that is C is replaces by 255 - C, etc...*/
|
|
/* See the comment below for the computation of RGB values from CMYK ones. */
|
|
*ptr2 =
|
|
(0xff000000) |
|
|
((ptr[0] * ptr[3] / 255) << 16) |
|
|
((ptr[1] * ptr[3] / 255) << 8) |
|
|
((ptr[2] * ptr[3] / 255));
|
|
ptr += 4;
|
|
ptr2++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
/* Conversion from CMYK to RGB is done in 2 steps: */
|
|
/* CMYK => CMY => RGB (see http://www.easyrgb.com/index.php?X=MATH) */
|
|
/* after computation, if C, M, Y and K are between 0 and 1, we have: */
|
|
/* R = (1 - C) * (1 - K) * 255 */
|
|
/* G = (1 - M) * (1 - K) * 255 */
|
|
/* B = (1 - Y) * (1 - K) * 255 */
|
|
/* libjpeg stores CMYK values between 0 and 255, */
|
|
/* so we replace C by C * 255 / 255, etc... and we obtain: */
|
|
/* R = (255 - C) * (255 - K) / 255 */
|
|
/* G = (255 - M) * (255 - K) / 255 */
|
|
/* B = (255 - Y) * (255 - K) / 255 */
|
|
/* with C, M, Y and K between 0 and 255. */
|
|
*ptr2 =
|
|
(0xff000000) |
|
|
(((255 - ptr[0]) * (255 - ptr[3]) / 255) << 16) |
|
|
(((255 - ptr[1]) * (255 - ptr[3]) / 255) << 8) |
|
|
(((255 - ptr[2]) * (255 - ptr[3]) / 255));
|
|
ptr += 4;
|
|
ptr2++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// if line # > region last line, break
|
|
if (l >= (opts->region.y + opts->region.h))
|
|
{
|
|
line_done = EINA_TRUE;
|
|
/* if rotation flag is set , we have to rotate image */
|
|
goto done;
|
|
/*jpeg_destroy_decompress(&cinfo);
|
|
_evas_jpeg_membuf_src_term(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_NONE;
|
|
return EINA_FALSE;*/
|
|
}
|
|
// els if scan block intersects region start or later
|
|
else if ((l + scans) >
|
|
(opts->region.y))
|
|
{
|
|
for (y = 0; y < scans; y++)
|
|
{
|
|
if (((y + l) >= opts->region.y) &&
|
|
((y + l) < (opts->region.y + opts->region.h)))
|
|
{
|
|
ptr += opts->region.x;
|
|
if (cinfo.saw_Adobe_marker)
|
|
{
|
|
for (x = 0; x < opts->region.w; x++)
|
|
{
|
|
/* According to libjpeg doc, Photoshop inverse the values of C, M, Y and K, */
|
|
/* that is C is replaces by 255 - C, etc...*/
|
|
/* See the comment below for the computation of RGB values from CMYK ones. */
|
|
*ptr2 =
|
|
(0xff000000) |
|
|
((ptr[0] * ptr[3] / 255) << 16) |
|
|
((ptr[1] * ptr[3] / 255) << 8) |
|
|
((ptr[2] * ptr[3] / 255));
|
|
ptr += 4;
|
|
ptr2++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (x = 0; x < opts->region.w; x++)
|
|
{
|
|
/* Conversion from CMYK to RGB is done in 2 steps: */
|
|
/* CMYK => CMY => RGB (see http://www.easyrgb.com/index.php?X=MATH) */
|
|
/* after computation, if C, M, Y and K are between 0 and 1, we have: */
|
|
/* R = (1 - C) * (1 - K) * 255 */
|
|
/* G = (1 - M) * (1 - K) * 255 */
|
|
/* B = (1 - Y) * (1 - K) * 255 */
|
|
/* libjpeg stores CMYK values between 0 and 255, */
|
|
/* so we replace C by C * 255 / 255, etc... and we obtain: */
|
|
/* R = (255 - C) * (255 - K) / 255 */
|
|
/* G = (255 - M) * (255 - K) / 255 */
|
|
/* B = (255 - Y) * (255 - K) / 255 */
|
|
/* with C, M, Y and K between 0 and 255. */
|
|
*ptr2 =
|
|
(0xff000000) |
|
|
(((255 - ptr[0]) * (255 - ptr[3]) / 255) << 16) |
|
|
(((255 - ptr[1]) * (255 - ptr[3]) / 255) << 8) |
|
|
(((255 - ptr[2]) * (255 - ptr[3]) / 255));
|
|
ptr += 4;
|
|
ptr2++;
|
|
}
|
|
}
|
|
ptr += (4 * (w - (opts->region.x + opts->region.w)));
|
|
}
|
|
else
|
|
ptr += (4 * w);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* We handle then RGB with 3 components */
|
|
else if (cinfo.output_components == 3)
|
|
{
|
|
/*
|
|
double t;
|
|
if (region)
|
|
{
|
|
// debug for now
|
|
printf("R| %p %5ix%5i %s: %5i %5i %5ix%5i - ",
|
|
ie,
|
|
ie->w, ie->h,
|
|
ie->file,
|
|
opts->region.x,
|
|
opts->region.y,
|
|
opts->region.w,
|
|
opts->region.h);
|
|
}
|
|
t = get_time();
|
|
*/
|
|
for (i = 0; (int)i < cinfo.rec_outbuf_height; i++)
|
|
line[i] = data + (i * w * 3);
|
|
for (l = 0; l < h; l += cinfo.rec_outbuf_height)
|
|
{
|
|
jpeg_read_scanlines(&cinfo, line, cinfo.rec_outbuf_height);
|
|
scans = cinfo.rec_outbuf_height;
|
|
if ((h - l) < scans) scans = h - l;
|
|
ptr = data;
|
|
if (!region)
|
|
{
|
|
for (y = 0; y < scans; y++)
|
|
{
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
*ptr2 = ARGB_JOIN(0xff, ptr[0], ptr[1], ptr[2]);
|
|
ptr += 3;
|
|
ptr2++;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// if line # > region last line, break
|
|
// but not return immediately for rotation job
|
|
if (l >= (opts->region.y + opts->region.h))
|
|
{
|
|
line_done = EINA_TRUE;
|
|
/* if rotation flag is set , we have to rotate image */
|
|
goto done;
|
|
}
|
|
// else if scan block intersects region start or later
|
|
else if ((l + scans) >
|
|
(opts->region.y))
|
|
{
|
|
for (y = 0; y < scans; y++)
|
|
{
|
|
if (((y + l) >= opts->region.y) &&
|
|
((y + l) < (opts->region.y + opts->region.h)))
|
|
{
|
|
ptr += (3 * opts->region.x);
|
|
for (x = 0; x < opts->region.w; x++)
|
|
{
|
|
*ptr2 = ARGB_JOIN(0xff, ptr[0], ptr[1], ptr[2]);
|
|
ptr += 3;
|
|
ptr2++;
|
|
}
|
|
ptr += (3 * (w - (opts->region.x + opts->region.w)));
|
|
}
|
|
else
|
|
ptr += (3 * w);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/*
|
|
t = get_time() - t;
|
|
printf("%3.3f\n", t);
|
|
*/
|
|
}
|
|
/* We finally handle RGB with 1 component */
|
|
else if (cinfo.output_components == 1)
|
|
{
|
|
for (i = 0; (int)i < cinfo.rec_outbuf_height; i++)
|
|
line[i] = data + (i * w);
|
|
for (l = 0; l < h; l += cinfo.rec_outbuf_height)
|
|
{
|
|
jpeg_read_scanlines(&cinfo, line, cinfo.rec_outbuf_height);
|
|
scans = cinfo.rec_outbuf_height;
|
|
if ((h - l) < scans) scans = h - l;
|
|
ptr = data;
|
|
if (!region)
|
|
{
|
|
for (y = 0; y < scans; y++)
|
|
{
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
*ptr2 = ARGB_JOIN(0xff, ptr[0], ptr[0], ptr[0]);
|
|
ptr++;
|
|
ptr2++;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// if line # > region last line, break
|
|
if (l >= (opts->region.y + opts->region.h))
|
|
{
|
|
line_done = EINA_TRUE;
|
|
/* if rotation flag is set , we have to rotate image */
|
|
goto done;
|
|
/*jpeg_destroy_decompress(&cinfo);
|
|
_evas_jpeg_membuf_src_term(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_NONE;
|
|
return EINA_TRUE;*/
|
|
}
|
|
// els if scan block intersects region start or later
|
|
else if ((l + scans) >
|
|
(opts->region.y))
|
|
{
|
|
for (y = 0; y < scans; y++)
|
|
{
|
|
if (((y + l) >= opts->region.y) &&
|
|
((y + l) < (opts->region.y + opts->region.h)))
|
|
{
|
|
ptr += opts->region.x;
|
|
for (x = 0; x < opts->region.w; x++)
|
|
{
|
|
*ptr2 = ARGB_JOIN(0xff, ptr[0], ptr[0], ptr[0]);
|
|
ptr++;
|
|
ptr2++;
|
|
}
|
|
ptr += w - (opts->region.x + opts->region.w);
|
|
}
|
|
else
|
|
ptr += w;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* if rotation operation need, rotate it */
|
|
done:
|
|
|
|
if (prop->rotated)
|
|
{
|
|
DATA32 *data1, *data2, *to, *from;
|
|
int lx, ly, lw, lh, hw;
|
|
|
|
lw = w;
|
|
lh = h;
|
|
hw = lw * lh;
|
|
|
|
data1 = pixels;
|
|
|
|
if (degree == 180)
|
|
{
|
|
DATA32 tmpd;
|
|
|
|
data2 = data1 + (lh * lw) -1;
|
|
for (lx = (lw * lh) / 2; --lx >= 0;)
|
|
{
|
|
tmpd = *data1;
|
|
*data1 = *data2;
|
|
*data2 = tmpd;
|
|
data1++;
|
|
data2--;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
data2 = NULL;
|
|
to = NULL;
|
|
if (ptr_rotate) data2 = ptr_rotate;
|
|
|
|
if (degree == 90)
|
|
{
|
|
to = data1 + lw - 1;
|
|
hw = -hw - 1;
|
|
}
|
|
else if (degree == 270)
|
|
{
|
|
to = data1 + hw - lw;
|
|
lw = -lw;
|
|
hw = hw + 1;
|
|
}
|
|
|
|
if (to)
|
|
{
|
|
from = data2;
|
|
for (lx = w; --lx >= 0;)
|
|
{
|
|
for (ly = h; --ly >= 0;)
|
|
{
|
|
*to = *from;
|
|
from++;
|
|
to += lw;
|
|
}
|
|
to += hw;
|
|
}
|
|
}
|
|
if (ptr_rotate)
|
|
{
|
|
free(ptr_rotate);
|
|
ptr_rotate = NULL;
|
|
}
|
|
}
|
|
if (region)
|
|
{
|
|
opts->region.x = load_region_x;
|
|
opts->region.y = load_region_y;
|
|
opts->region.w = load_region_w;
|
|
opts->region.h = load_region_h;
|
|
}
|
|
}
|
|
|
|
if (line_done)
|
|
{
|
|
jpeg_destroy_decompress(&cinfo);
|
|
_evas_jpeg_membuf_src_term(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_NONE;
|
|
return EINA_FALSE;
|
|
}
|
|
/* end data decoding */
|
|
jpeg_finish_decompress(&cinfo);
|
|
jpeg_destroy_decompress(&cinfo);
|
|
_evas_jpeg_membuf_src_term(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_NONE;
|
|
return EINA_TRUE;
|
|
}
|
|
|
|
#if 0 /* not used at the moment */
|
|
static Eina_Bool
|
|
evas_image_load_file_data_jpeg_alpha_internal(Image_Entry *ie, FILE *f, int *error)
|
|
{
|
|
int w, h;
|
|
struct jpeg_decompress_struct cinfo;
|
|
struct _JPEG_error_mgr jerr;
|
|
DATA8 *ptr, *line[16], *data;
|
|
DATA32 *ptr2;
|
|
int x, y, l, i, scans, prevy;
|
|
|
|
if (!f)
|
|
{
|
|
*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
|
|
return EINA_FALSE;
|
|
}
|
|
cinfo.err = jpeg_std_error(&(jerr.pub));
|
|
jerr.pub.error_exit = _JPEGFatalErrorHandler;
|
|
jerr.pub.emit_message = _JPEGErrorHandler2;
|
|
jerr.pub.output_message = _JPEGErrorHandler;
|
|
if (setjmp(jerr.setjmp_buffer))
|
|
{
|
|
jpeg_destroy_decompress(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_CORRUPT_FILE;
|
|
return EINA_FALSE;
|
|
}
|
|
jpeg_create_decompress(&cinfo);
|
|
jpeg_stdio_src(&cinfo, f);
|
|
jpeg_read_header(&cinfo, TRUE);
|
|
cinfo.do_fancy_upsampling = FALSE;
|
|
cinfo.do_block_smoothing = FALSE;
|
|
jpeg_start_decompress(&cinfo);
|
|
|
|
/* head decoding */
|
|
ie->w = w = cinfo.output_width;
|
|
ie->h = h = cinfo.output_height;
|
|
/* end head decoding */
|
|
/* data decoding */
|
|
if (cinfo.rec_outbuf_height > 16)
|
|
{
|
|
jpeg_destroy_decompress(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_UNKNOWN_FORMAT;
|
|
return EINA_FALSE;;
|
|
}
|
|
data = alloca(w * 16 * 3);
|
|
if (!ie->flags.loaded)
|
|
{
|
|
jpeg_destroy_decompress(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_NONE;
|
|
return EINA_TRUE;
|
|
}
|
|
ptr2 = evas_cache_image_pixels(ie);
|
|
prevy = 0;
|
|
if (cinfo.output_components == 3)
|
|
{
|
|
for (i = 0; i < cinfo.rec_outbuf_height; i++)
|
|
line[i] = data + (i * w * 3);
|
|
for (l = 0; l < h; l += cinfo.rec_outbuf_height)
|
|
{
|
|
jpeg_read_scanlines(&cinfo, line, cinfo.rec_outbuf_height);
|
|
scans = cinfo.rec_outbuf_height;
|
|
if ((h - l) < scans) scans = h - l;
|
|
ptr = data;
|
|
for (y = 0; y < scans; y++)
|
|
{
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
*ptr2 =
|
|
((*ptr2) & 0x00ffffff) |
|
|
(((ptr[0] + ptr[1] + ptr[2]) / 3) << 24);
|
|
ptr += 3;
|
|
ptr2++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (cinfo.output_components == 1)
|
|
{
|
|
for (i = 0; i < cinfo.rec_outbuf_height; i++)
|
|
line[i] = data + (i * w);
|
|
for (l = 0; l < h; l += cinfo.rec_outbuf_height)
|
|
{
|
|
jpeg_read_scanlines(&cinfo, line, cinfo.rec_outbuf_height);
|
|
scans = cinfo.rec_outbuf_height;
|
|
if ((h - l) < scans) scans = h - l;
|
|
ptr = data;
|
|
for (y = 0; y < scans; y++)
|
|
{
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
*ptr2 =
|
|
((*ptr2) & 0x00ffffff) |
|
|
((ptr[0]) << 24);
|
|
ptr++;
|
|
ptr2++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* end data decoding */
|
|
jpeg_finish_decompress(&cinfo);
|
|
jpeg_destroy_decompress(&cinfo);
|
|
*error = EVAS_LOAD_ERROR_NONE;
|
|
return EINA_TRUE;
|
|
}
|
|
#endif
|
|
|
|
static void *
|
|
evas_image_load_file_open_jpeg(Eina_File *f, const char *key EINA_UNUSED,
|
|
Evas_Image_Load_Opts *opts,
|
|
Evas_Image_Animated *animated EINA_UNUSED,
|
|
int *error)
|
|
{
|
|
Evas_Loader_Internal *loader;
|
|
|
|
loader = calloc(1, sizeof (Evas_Loader_Internal));
|
|
if (!loader)
|
|
{
|
|
*error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
|
|
return NULL;
|
|
}
|
|
|
|
loader->f = f;
|
|
loader->opts = opts;
|
|
|
|
return loader;
|
|
}
|
|
|
|
static void
|
|
evas_image_load_file_close_jpeg(void *loader_data)
|
|
{
|
|
free(loader_data);
|
|
}
|
|
|
|
static Eina_Bool
|
|
evas_image_load_file_head_jpeg(void *loader_data,
|
|
Evas_Image_Property *prop,
|
|
int *error)
|
|
{
|
|
Evas_Loader_Internal *loader = loader_data;
|
|
Evas_Image_Load_Opts *opts;
|
|
Eina_File *f;
|
|
void *map;
|
|
Eina_Bool val;
|
|
|
|
opts = loader->opts;
|
|
f = loader->f;
|
|
|
|
map = eina_file_map_all(f, EINA_FILE_WILLNEED);
|
|
if (!map)
|
|
{
|
|
*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
val = evas_image_load_file_head_jpeg_internal(&prop->w, &prop->h,
|
|
&prop->scale, &prop->rotated,
|
|
opts,
|
|
map, eina_file_size_get(f),
|
|
error);
|
|
|
|
eina_file_map_free(f, map);
|
|
|
|
return val;
|
|
}
|
|
|
|
static Eina_Bool
|
|
evas_image_load_file_data_jpeg(void *loader_data,
|
|
Evas_Image_Property *prop,
|
|
void *pixels,
|
|
int *error)
|
|
{
|
|
Evas_Loader_Internal *loader = loader_data;
|
|
Evas_Image_Load_Opts *opts;
|
|
Eina_File *f;
|
|
void *map;
|
|
Eina_Bool val = EINA_FALSE;
|
|
|
|
f = loader->f;
|
|
opts = loader->opts;
|
|
|
|
map = eina_file_map_all(f, EINA_FILE_WILLNEED);
|
|
if (!map)
|
|
{
|
|
*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
|
|
goto on_error;
|
|
}
|
|
|
|
val = evas_image_load_file_data_jpeg_internal(opts, prop, pixels,
|
|
map, eina_file_size_get(f),
|
|
error);
|
|
|
|
eina_file_map_free(f, map);
|
|
|
|
on_error:
|
|
return val;
|
|
}
|
|
|
|
static Evas_Image_Load_Func evas_image_load_jpeg_func =
|
|
{
|
|
EINA_TRUE,
|
|
evas_image_load_file_open_jpeg,
|
|
evas_image_load_file_close_jpeg,
|
|
evas_image_load_file_head_jpeg,
|
|
evas_image_load_file_data_jpeg,
|
|
NULL,
|
|
EINA_TRUE
|
|
};
|
|
|
|
static int
|
|
module_open(Evas_Module *em)
|
|
{
|
|
if (!em) return 0;
|
|
em->functions = (void *)(&evas_image_load_jpeg_func);
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
module_close(Evas_Module *em EINA_UNUSED)
|
|
{
|
|
}
|
|
|
|
static Evas_Module_Api evas_modapi =
|
|
{
|
|
EVAS_MODULE_API_VERSION,
|
|
"jpeg",
|
|
"none",
|
|
{
|
|
module_open,
|
|
module_close
|
|
}
|
|
};
|
|
|
|
EVAS_MODULE_DEFINE(EVAS_MODULE_TYPE_IMAGE_LOADER, image_loader, jpeg);
|
|
|
|
#ifndef EVAS_STATIC_BUILD_JPEG
|
|
EVAS_EINA_MODULE_DEFINE(image_loader, jpeg);
|
|
#endif
|
|
|