1882 lines
52 KiB
C
1882 lines
52 KiB
C
#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* ifdef HAVE_CONFIG_H */
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#ifdef HAVE_ALLOCA_H
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# include <alloca.h>
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#elif defined __GNUC__
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# define alloca __builtin_alloca
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#elif defined _AIX
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# define alloca __alloca
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#elif defined _MSC_VER
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# include <malloc.h>
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# define alloca _alloca
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#else /* ifdef HAVE_ALLOCA_H */
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# include <stddef.h>
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# ifdef __cplusplus
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extern "C"
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# endif /* ifdef __cplusplus */
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void *alloca(size_t);
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#endif /* ifdef HAVE_ALLOCA_H */
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#ifdef HAVE_NETINET_IN_H
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# ifdef __OpenBSD__
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# include <sys/types.h>
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# endif /* ifdef __OpenBSD__ */
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# include <netinet/in.h>
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#endif /* ifdef HAVE_NETINET_IN_H */
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#ifdef _WIN32
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# include <winsock2.h>
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# define HAVE_BOOLEAN
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#endif /* ifdef _WIN32 */
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#include <stdio.h>
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#include <string.h>
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#include <setjmp.h>
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#include <zlib.h>
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#include <jpeglib.h>
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#include "Eet.h"
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#include "Eet_private.h"
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#include "lz4.h"
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#include "lz4hc.h"
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/*---*/
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typedef struct _JPEG_error_mgr *emptr;
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/*---*/
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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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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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_eet_jpeg_membuf_src_init(j_decompress_ptr cinfo)
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{
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/* FIXME: Use attribute unused */
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(void)cinfo;
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}
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static boolean
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_eet_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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_eet_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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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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_eet_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)->self;
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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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eet_jpeg_membuf_src(j_decompress_ptr cinfo,
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const void *buf,
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size_t len)
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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 = buf;
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src->len = len;
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src->pub.init_source = _eet_jpeg_membuf_src_init;
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src->pub.fill_input_buffer = _eet_jpeg_membuf_src_fill;
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src->pub.skip_input_data = _eet_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 = _eet_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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struct jpeg_membuf_dst
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{
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struct jpeg_destination_mgr pub;
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void **dst_buf;
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size_t *dst_len;
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unsigned char *buf;
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size_t len;
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int failed;
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struct jpeg_membuf_dst *self;
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};
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static void
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_eet_jpeg_membuf_dst_init(j_compress_ptr cinfo)
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{
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/* FIXME: Use eina attribute */
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(void)cinfo;
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}
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static boolean
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_eet_jpeg_membuf_dst_flush(j_compress_ptr cinfo)
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{
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struct jpeg_membuf_dst *dst = (struct jpeg_membuf_dst *)cinfo->dest;
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unsigned char *buf;
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if (dst->len >= 0x40000000 ||
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!(buf = realloc(dst->buf, dst->len * 2)))
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{
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dst->failed = 1;
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dst->pub.next_output_byte = dst->buf;
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dst->pub.free_in_buffer = dst->len;
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return TRUE;
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}
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dst->pub.next_output_byte =
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buf + ((unsigned char *)dst->pub.next_output_byte - dst->buf);
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dst->buf = buf;
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dst->pub.free_in_buffer += dst->len;
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dst->len *= 2;
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return FALSE;
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}
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static void
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_eet_jpeg_membuf_dst_term(j_compress_ptr cinfo)
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{
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struct jpeg_membuf_dst *dst = ((struct jpeg_membuf_dst *)cinfo->dest)->self;
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if (dst->failed)
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{
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*dst->dst_buf = NULL;
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*dst->dst_len = 0;
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free(dst->buf);
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}
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else
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{
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*dst->dst_buf = dst->buf;
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*dst->dst_len = (unsigned char *)dst->pub.next_output_byte - dst->buf;
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}
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free(dst);
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cinfo->dest = NULL;
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}
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static int
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eet_jpeg_membuf_dst(j_compress_ptr cinfo,
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void **buf,
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size_t *len)
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{
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struct jpeg_membuf_dst *dst;
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dst = calloc(1, sizeof(*dst));
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if (!dst)
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return -1;
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dst->buf = malloc(32768);
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if (!dst->buf)
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{
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free(dst);
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return -1;
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}
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dst->self = dst;
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dst->len = 32768;
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cinfo->dest = &dst->pub;
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dst->pub.init_destination = _eet_jpeg_membuf_dst_init;
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dst->pub.empty_output_buffer = _eet_jpeg_membuf_dst_flush;
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dst->pub.term_destination = _eet_jpeg_membuf_dst_term;
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dst->pub.free_in_buffer = dst->len;
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dst->pub.next_output_byte = dst->buf;
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dst->dst_buf = buf;
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dst->dst_len = len;
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dst->failed = 0;
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return 0;
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}
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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,
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int msg_level);
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static int
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eet_data_image_jpeg_header_decode(const void *data,
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int size,
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unsigned int *w,
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unsigned int *h);
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static int
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eet_data_image_jpeg_rgb_decode(const void *data,
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int size,
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unsigned int src_x,
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unsigned int src_y,
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unsigned int *d,
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unsigned int w,
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unsigned int h,
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unsigned int row_stride);
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static int
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eet_data_image_jpeg_alpha_decode(const void *data,
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int size,
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unsigned int src_x,
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unsigned int src_y,
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unsigned int *d,
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unsigned int w,
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unsigned int h,
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unsigned int row_stride);
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static void *
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eet_data_image_lossless_convert(int *size,
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const void *data,
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unsigned int w,
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unsigned int h,
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int alpha);
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static void *
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eet_data_image_lossless_compressed_convert(int *size,
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const void *data,
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unsigned int w,
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unsigned int h,
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int alpha,
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int compression);
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static void *
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eet_data_image_jpeg_convert(int *size,
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const void *data,
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unsigned int w,
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unsigned int h,
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int alpha,
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int quality);
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static void *
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eet_data_image_jpeg_alpha_convert(int *size,
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const void *data,
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unsigned int w,
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unsigned int h,
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int alpha,
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int quality);
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/*---*/
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static int _eet_image_words_bigendian = -1;
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/*---*/
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#define SWAP64(x) (x) = \
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((((unsigned long long)(x) & 0x00000000000000ffULL) << 56) | \
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(((unsigned long long)(x) & 0x000000000000ff00ULL) << 40) | \
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(((unsigned long long)(x) & 0x0000000000ff0000ULL) << 24) | \
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(((unsigned long long)(x) & 0x00000000ff000000ULL) << 8) | \
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(((unsigned long long)(x) & 0x000000ff00000000ULL) >> 8) | \
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(((unsigned long long)(x) & 0x0000ff0000000000ULL) >> 24) | \
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(((unsigned long long)(x) & 0x00ff000000000000ULL) >> 40) | \
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(((unsigned long long)(x) & 0xff00000000000000ULL) >> 56))
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#define SWAP32(x) (x) = \
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((((int)(x) & 0x000000ff) << 24) | \
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(((int)(x) & 0x0000ff00) << 8) | \
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(((int)(x) & 0x00ff0000) >> 8) | \
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(((int)(x) & 0xff000000) >> 24))
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#define SWAP16(x) (x) = \
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((((short)(x) & 0x00ff) << 8) | \
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(((short)(x) & 0xff00) >> 8))
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#ifdef CONV8
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# undef CONV8
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#endif /* ifdef CONV8 */
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#ifdef CONV16
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# undef CONV16
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#endif /* ifdef CONV16 */
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#ifdef CONV32
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# undef CONV32
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#endif /* ifdef CONV32 */
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#ifdef CONV64
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# undef CONV64
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#endif /* ifdef CONV64 */
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#define CONV8(x)
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#define CONV16(x) {if (_eet_image_words_bigendian) {SWAP16(x); }}
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#define CONV32(x) {if (_eet_image_words_bigendian) {SWAP32(x); }}
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#define CONV64(x) {if (_eet_image_words_bigendian) {SWAP64(x); }}
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/*---*/
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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,
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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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static int
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eet_data_image_jpeg_header_decode(const void *data,
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int size,
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unsigned int *w,
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unsigned int *h)
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{
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struct jpeg_decompress_struct cinfo;
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struct _JPEG_error_mgr jerr;
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memset(&cinfo, 0, sizeof (struct jpeg_decompress_struct));
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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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return 0;
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jpeg_create_decompress(&cinfo);
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if (eet_jpeg_membuf_src(&cinfo, data, (size_t)size))
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{
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jpeg_destroy_decompress(&cinfo);
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return 0;
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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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jpeg_start_decompress(&cinfo);
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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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free(cinfo.src);
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cinfo.src = NULL;
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jpeg_destroy_decompress(&cinfo);
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if ((*w < 1) || (*h < 1) || (*w > 8192) || (*h > 8192))
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return 0;
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return 1;
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}
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static int
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eet_data_image_jpeg_rgb_decode(const void *data,
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int size,
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unsigned int src_x,
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unsigned int src_y,
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unsigned int *d,
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unsigned int w,
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unsigned int h,
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unsigned int row_stride)
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{
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struct jpeg_decompress_struct cinfo;
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struct _JPEG_error_mgr jerr;
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unsigned char *ptr, *line[16], *tdata = NULL;
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unsigned int *ptr2, *tmp;
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unsigned int iw, ih;
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unsigned int x, y, l, scans;
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unsigned int i;
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/* FIXME: handle src_x, src_y and row_stride correctly */
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if (!d)
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return 0;
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memset(&cinfo, 0, sizeof (struct jpeg_decompress_struct));
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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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return 0;
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jpeg_create_decompress(&cinfo);
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if (eet_jpeg_membuf_src(&cinfo, data, (size_t)size))
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{
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jpeg_destroy_decompress(&cinfo);
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return 0;
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}
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jpeg_read_header(&cinfo, TRUE);
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cinfo.dct_method = JDCT_ISLOW; // JDCT_FLOAT JDCT_IFAST(quality loss)
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cinfo.do_fancy_upsampling = FALSE;
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cinfo.do_block_smoothing = FALSE;
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jpeg_start_decompress(&cinfo);
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/* head decoding */
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iw = cinfo.output_width;
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ih = cinfo.output_height;
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if ((iw != w) || (ih != h))
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{
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free(cinfo.src);
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cinfo.src = NULL;
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jpeg_destroy_decompress(&cinfo);
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return 0;
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}
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/* end head decoding */
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/* data decoding */
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if (cinfo.rec_outbuf_height > 16)
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{
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free(cinfo.src);
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cinfo.src = NULL;
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jpeg_destroy_decompress(&cinfo);
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return 0;
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}
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tdata = alloca((iw) * 16 * 3);
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ptr2 = d;
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if (cinfo.output_components == 3)
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{
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for (i = 0; i < (unsigned int)cinfo.rec_outbuf_height; i++)
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line[i] = tdata + (i * (iw) * 3);
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for (l = 0; l < ih; l += cinfo.rec_outbuf_height)
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{
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jpeg_read_scanlines(&cinfo, line, cinfo.rec_outbuf_height);
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scans = cinfo.rec_outbuf_height;
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if ((ih - l) < scans)
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scans = ih - l;
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ptr = tdata;
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if (l + scans >= src_y && l < src_y + h)
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{
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y = src_y - l;
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if (src_y < l)
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y = 0;
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for (ptr += 3 * iw * y; y < scans && (y + l) < (src_y + h);
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y++)
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{
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tmp = ptr2;
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ptr += 3 * src_x;
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for (x = 0; x < w; x++)
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{
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*ptr2 =
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(0xff000000) |
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((ptr[0]) << 16) | ((ptr[1]) << 8) | (ptr[2]);
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ptr += 3;
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ptr2++;
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}
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ptr += 3 * (iw - w);
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ptr2 = tmp + row_stride / 4;
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}
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}
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}
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}
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else if (cinfo.output_components == 1)
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{
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for (i = 0; i < (unsigned int)cinfo.rec_outbuf_height; i++)
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line[i] = tdata + (i * (iw));
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for (l = 0; l < (ih); l += cinfo.rec_outbuf_height)
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{
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jpeg_read_scanlines(&cinfo, line, cinfo.rec_outbuf_height);
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scans = cinfo.rec_outbuf_height;
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if (((ih) - l) < scans)
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scans = (ih) - l;
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ptr = tdata;
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if (l >= src_y && l < src_y + h)
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{
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y = src_y - l;
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if (src_y < l)
|
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y = 0;
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|
|
for (ptr += iw * y; y < scans && (y + l) < (src_y + h); y++)
|
|
{
|
|
tmp = ptr2;
|
|
ptr += src_x;
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
*ptr2 =
|
|
(0xff000000) |
|
|
((ptr[0]) << 16) | ((ptr[0]) << 8) | (ptr[0]);
|
|
ptr++;
|
|
ptr2++;
|
|
}
|
|
ptr += iw - w;
|
|
ptr2 = tmp + row_stride / 4;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* end data decoding */
|
|
jpeg_finish_decompress(&cinfo);
|
|
jpeg_destroy_decompress(&cinfo);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
eet_data_image_jpeg_alpha_decode(const void *data,
|
|
int size,
|
|
unsigned int src_x,
|
|
unsigned int src_y,
|
|
unsigned int *d,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
unsigned int row_stride)
|
|
{
|
|
struct jpeg_decompress_struct cinfo;
|
|
struct _JPEG_error_mgr jerr;
|
|
unsigned char *ptr, *line[16], *tdata = NULL;
|
|
unsigned int *ptr2, *tmp;
|
|
unsigned int x, y, l, scans;
|
|
unsigned int i, iw;
|
|
|
|
/* FIXME: handle src_x, src_y and row_stride correctly */
|
|
if (!d)
|
|
return 0;
|
|
|
|
memset(&cinfo, 0, sizeof (struct jpeg_decompress_struct));
|
|
|
|
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))
|
|
return 0;
|
|
|
|
jpeg_create_decompress(&cinfo);
|
|
|
|
if (eet_jpeg_membuf_src(&cinfo, data, (size_t)size))
|
|
{
|
|
jpeg_destroy_decompress(&cinfo);
|
|
return 0;
|
|
}
|
|
|
|
jpeg_read_header(&cinfo, TRUE);
|
|
cinfo.dct_method = JDCT_ISLOW; // JDCT_FLOAT JDCT_IFAST(quality loss)
|
|
cinfo.do_fancy_upsampling = FALSE;
|
|
cinfo.do_block_smoothing = FALSE;
|
|
jpeg_start_decompress(&cinfo);
|
|
|
|
/* head decoding */
|
|
iw = cinfo.output_width;
|
|
if (w != cinfo.output_width
|
|
|| h != cinfo.output_height)
|
|
{
|
|
free(cinfo.src);
|
|
cinfo.src = NULL;
|
|
|
|
jpeg_destroy_decompress(&cinfo);
|
|
return 0;
|
|
}
|
|
|
|
/* end head decoding */
|
|
/* data decoding */
|
|
if (cinfo.rec_outbuf_height > 16)
|
|
{
|
|
free(cinfo.src);
|
|
cinfo.src = NULL;
|
|
|
|
jpeg_destroy_decompress(&cinfo);
|
|
return 0;
|
|
}
|
|
|
|
tdata = alloca(w * 16 * 3);
|
|
ptr2 = d;
|
|
|
|
if (cinfo.output_components == 1)
|
|
{
|
|
for (i = 0; i < (unsigned int)cinfo.rec_outbuf_height; i++)
|
|
line[i] = tdata + (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 = tdata;
|
|
|
|
if (l >= src_y && l < src_y + h)
|
|
{
|
|
y = src_y - l;
|
|
if (src_y < l)
|
|
y = 0;
|
|
|
|
for (ptr += iw * y; y < scans && (y + l) < (src_y + h); y++)
|
|
{
|
|
tmp = ptr2;
|
|
ptr += src_x;
|
|
for (x = 0; x < w; x++)
|
|
{
|
|
*ptr2 =
|
|
((*ptr2) & 0x00ffffff) |
|
|
((ptr[0]) << 24);
|
|
ptr++;
|
|
ptr2++;
|
|
}
|
|
ptr += iw - w;
|
|
ptr2 = tmp + row_stride / 4;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* end data decoding */
|
|
jpeg_finish_decompress(&cinfo);
|
|
jpeg_destroy_decompress(&cinfo);
|
|
return 1;
|
|
}
|
|
|
|
static void *
|
|
eet_data_image_lossless_convert(int *size,
|
|
const void *data,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
int alpha)
|
|
{
|
|
if (_eet_image_words_bigendian == -1)
|
|
{
|
|
unsigned long int v;
|
|
|
|
v = htonl(0x12345678);
|
|
if (v == 0x12345678)
|
|
_eet_image_words_bigendian = 1;
|
|
else
|
|
_eet_image_words_bigendian = 0;
|
|
}
|
|
|
|
{
|
|
unsigned char *d;
|
|
int *header;
|
|
|
|
d = malloc((w * h * 4) + (8 * 4));
|
|
if (!d)
|
|
return NULL;
|
|
|
|
header = (int *)d;
|
|
memset(d, 0, 32);
|
|
|
|
header[0] = 0xac1dfeed;
|
|
header[1] = w;
|
|
header[2] = h;
|
|
header[3] = alpha;
|
|
|
|
memcpy(d + 32, data, w * h * 4);
|
|
|
|
if (_eet_image_words_bigendian)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ((w * h) + 8); i++) SWAP32(header[i]);
|
|
}
|
|
|
|
*size = ((w * h * 4) + (8 * 4));
|
|
return d;
|
|
}
|
|
}
|
|
|
|
static void *
|
|
eet_data_image_lossless_compressed_convert(int *size,
|
|
const void *data,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
int alpha,
|
|
int compression)
|
|
{
|
|
if (_eet_image_words_bigendian == -1)
|
|
{
|
|
unsigned long int v;
|
|
|
|
v = htonl(0x12345678);
|
|
if (v == 0x12345678)
|
|
_eet_image_words_bigendian = 1;
|
|
else
|
|
_eet_image_words_bigendian = 0;
|
|
}
|
|
|
|
{
|
|
unsigned char *d, *comp;
|
|
int *header, ret, ok = 1;
|
|
uLongf buflen = 0;
|
|
|
|
buflen = (((w * h * 101) / 100) + 3) * 4;
|
|
ret = LZ4_compressBound((w * h * 4));
|
|
if ((ret > 0) && ((uLongf)ret > buflen)) buflen = ret;
|
|
|
|
comp = malloc(buflen);
|
|
if (!comp) return NULL;
|
|
|
|
switch (compression)
|
|
{
|
|
case EET_COMPRESSION_VERYFAST:
|
|
ret = LZ4_compressHC((const char *)data, (char *)comp,
|
|
(w * h * 4));
|
|
if (ret <= 0) ok = 0;
|
|
buflen = ret;
|
|
break;
|
|
case EET_COMPRESSION_SUPERFAST:
|
|
ret = LZ4_compress((const char *)data, (char *)comp,
|
|
(w * h * 4));
|
|
if (ret <= 0) ok = 0;
|
|
buflen = ret;
|
|
break;
|
|
default: /* zlib etc. */
|
|
ret = compress2((Bytef *)comp, &buflen, (Bytef *)(data),
|
|
(uLong)(w * h * 4), compression);
|
|
if (ret != Z_OK) ok = 0;
|
|
break;
|
|
}
|
|
if ((!ok) || (buflen > (w * h * 4)))
|
|
{
|
|
free(comp);
|
|
*size = -1;
|
|
return NULL;
|
|
}
|
|
|
|
d = malloc((8 * sizeof(int)) + buflen);
|
|
if (!d)
|
|
{
|
|
free(comp);
|
|
return NULL;
|
|
}
|
|
|
|
header = (int *)d;
|
|
memset(d, 0, 8 * sizeof(int));
|
|
header[0] = 0xac1dfeed;
|
|
header[1] = w;
|
|
header[2] = h;
|
|
header[3] = alpha;
|
|
header[4] = compression;
|
|
|
|
if (_eet_image_words_bigendian)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < 8; i++) SWAP32(header[i]);
|
|
}
|
|
|
|
memcpy(d + (8 * sizeof(int)), comp, buflen);
|
|
*size = (8 * sizeof(int)) + buflen;
|
|
free(comp);
|
|
return d;
|
|
}
|
|
}
|
|
|
|
static void *
|
|
eet_data_image_jpeg_convert(int *size,
|
|
const void *data,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
int alpha,
|
|
int quality)
|
|
{
|
|
struct jpeg_compress_struct cinfo;
|
|
struct _JPEG_error_mgr jerr;
|
|
const int *ptr;
|
|
void *d = NULL;
|
|
size_t sz = 0;
|
|
JSAMPROW *jbuf;
|
|
unsigned char *buf;
|
|
|
|
(void)alpha; /* unused */
|
|
|
|
buf = alloca(3 * w);
|
|
|
|
memset(&cinfo, 0, sizeof (struct jpeg_compress_struct));
|
|
|
|
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))
|
|
return NULL;
|
|
|
|
jpeg_create_compress(&cinfo);
|
|
|
|
if (eet_jpeg_membuf_dst(&cinfo, &d, &sz))
|
|
{
|
|
jpeg_destroy_compress(&cinfo);
|
|
return NULL;
|
|
}
|
|
|
|
cinfo.image_width = w;
|
|
cinfo.image_height = h;
|
|
cinfo.input_components = 3;
|
|
cinfo.in_color_space = JCS_RGB;
|
|
cinfo.optimize_coding = FALSE;
|
|
cinfo.dct_method = JDCT_ISLOW; // JDCT_FLOAT JDCT_IFAST(quality loss)
|
|
if (quality < 60) cinfo.dct_method = JDCT_IFAST;
|
|
jpeg_set_defaults(&cinfo);
|
|
jpeg_set_quality(&cinfo, quality, TRUE);
|
|
|
|
if (quality >= 90)
|
|
{
|
|
cinfo.comp_info[0].h_samp_factor = 1;
|
|
cinfo.comp_info[0].v_samp_factor = 1;
|
|
cinfo.comp_info[1].h_samp_factor = 1;
|
|
cinfo.comp_info[1].v_samp_factor = 1;
|
|
cinfo.comp_info[2].h_samp_factor = 1;
|
|
cinfo.comp_info[2].v_samp_factor = 1;
|
|
}
|
|
|
|
jpeg_start_compress(&cinfo, TRUE);
|
|
|
|
while (cinfo.next_scanline < cinfo.image_height)
|
|
{
|
|
unsigned int i, j;
|
|
|
|
/* convert scaline from ARGB to RGB packed */
|
|
ptr = ((const int *)data) + cinfo.next_scanline * w;
|
|
for (j = 0, i = 0; i < w; i++)
|
|
{
|
|
buf[j++] = ((*ptr) >> 16) & 0xff;
|
|
buf[j++] = ((*ptr) >> 8) & 0xff;
|
|
buf[j++] = ((*ptr)) & 0xff;
|
|
ptr++;
|
|
}
|
|
jbuf = (JSAMPROW *)(&buf);
|
|
jpeg_write_scanlines(&cinfo, jbuf, 1);
|
|
}
|
|
|
|
jpeg_finish_compress(&cinfo);
|
|
jpeg_destroy_compress(&cinfo);
|
|
|
|
*size = sz;
|
|
return d;
|
|
}
|
|
|
|
static void *
|
|
eet_data_image_jpeg_alpha_convert(int *size,
|
|
const void *data,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
int alpha,
|
|
int quality)
|
|
{
|
|
unsigned char *d1, *d2;
|
|
unsigned char *d;
|
|
int *header;
|
|
int sz1, sz2;
|
|
|
|
(void)alpha; /* unused */
|
|
|
|
if (_eet_image_words_bigendian == -1)
|
|
{
|
|
unsigned long int v;
|
|
|
|
v = htonl(0x12345678);
|
|
if (v == 0x12345678)
|
|
_eet_image_words_bigendian = 1;
|
|
else
|
|
_eet_image_words_bigendian = 0;
|
|
}
|
|
|
|
{
|
|
const int *ptr;
|
|
void *dst = NULL;
|
|
size_t sz = 0;
|
|
struct _JPEG_error_mgr jerr;
|
|
JSAMPROW *jbuf;
|
|
struct jpeg_compress_struct cinfo;
|
|
unsigned char *buf;
|
|
|
|
buf = alloca(3 * w);
|
|
|
|
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))
|
|
return NULL;
|
|
|
|
jpeg_create_compress(&cinfo);
|
|
if (eet_jpeg_membuf_dst(&cinfo, &dst, &sz))
|
|
{
|
|
jpeg_destroy_compress(&cinfo);
|
|
return NULL;
|
|
}
|
|
|
|
cinfo.image_width = w;
|
|
cinfo.image_height = h;
|
|
cinfo.input_components = 3;
|
|
cinfo.in_color_space = JCS_RGB;
|
|
cinfo.optimize_coding = FALSE;
|
|
cinfo.dct_method = JDCT_ISLOW; // JDCT_FLOAT JDCT_IFAST(quality loss)
|
|
if (quality < 60) cinfo.dct_method = JDCT_IFAST;
|
|
jpeg_set_defaults(&cinfo);
|
|
jpeg_set_quality(&cinfo, quality, TRUE);
|
|
if (quality >= 90)
|
|
{
|
|
cinfo.comp_info[0].h_samp_factor = 1;
|
|
cinfo.comp_info[0].v_samp_factor = 1;
|
|
cinfo.comp_info[1].h_samp_factor = 1;
|
|
cinfo.comp_info[1].v_samp_factor = 1;
|
|
cinfo.comp_info[2].h_samp_factor = 1;
|
|
cinfo.comp_info[2].v_samp_factor = 1;
|
|
}
|
|
|
|
jpeg_start_compress(&cinfo, TRUE);
|
|
|
|
while (cinfo.next_scanline < cinfo.image_height)
|
|
{
|
|
unsigned int i, j;
|
|
|
|
ptr = ((const int *)data) + cinfo.next_scanline * w;
|
|
/* convert scaline from ARGB to RGB packed */
|
|
for (j = 0, i = 0; i < w; i++)
|
|
{
|
|
buf[j++] = ((*ptr) >> 16) & 0xff;
|
|
buf[j++] = ((*ptr) >> 8) & 0xff;
|
|
buf[j++] = ((*ptr)) & 0xff;
|
|
ptr++;
|
|
}
|
|
jbuf = (JSAMPROW *)(&buf);
|
|
jpeg_write_scanlines(&cinfo, jbuf, 1);
|
|
}
|
|
|
|
jpeg_finish_compress(&cinfo);
|
|
jpeg_destroy_compress(&cinfo);
|
|
|
|
d1 = dst;
|
|
sz1 = sz;
|
|
}
|
|
{
|
|
const int *ptr;
|
|
void *dst = NULL;
|
|
size_t sz = 0;
|
|
struct _JPEG_error_mgr jerr;
|
|
JSAMPROW *jbuf;
|
|
struct jpeg_compress_struct cinfo;
|
|
unsigned char *buf;
|
|
|
|
buf = alloca(3 * w);
|
|
|
|
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))
|
|
{
|
|
free(d1);
|
|
return NULL;
|
|
}
|
|
|
|
jpeg_create_compress(&cinfo);
|
|
if (eet_jpeg_membuf_dst(&cinfo, &dst, &sz))
|
|
{
|
|
jpeg_destroy_compress(&cinfo);
|
|
free(d1);
|
|
return NULL;
|
|
}
|
|
|
|
cinfo.image_width = w;
|
|
cinfo.image_height = h;
|
|
cinfo.input_components = 1;
|
|
cinfo.in_color_space = JCS_GRAYSCALE;
|
|
jpeg_set_defaults(&cinfo);
|
|
jpeg_set_quality(&cinfo, quality, TRUE);
|
|
if (quality >= 90)
|
|
{
|
|
cinfo.comp_info[0].h_samp_factor = 1;
|
|
cinfo.comp_info[0].v_samp_factor = 1;
|
|
cinfo.comp_info[1].h_samp_factor = 1;
|
|
cinfo.comp_info[1].v_samp_factor = 1;
|
|
cinfo.comp_info[2].h_samp_factor = 1;
|
|
cinfo.comp_info[2].v_samp_factor = 1;
|
|
}
|
|
|
|
jpeg_start_compress(&cinfo, TRUE);
|
|
|
|
while (cinfo.next_scanline < cinfo.image_height)
|
|
{
|
|
unsigned int i, j;
|
|
|
|
ptr = ((const int *)data) + cinfo.next_scanline * w;
|
|
/* convert scaline from ARGB to RGB packed */
|
|
for (j = 0, i = 0; i < w; i++)
|
|
{
|
|
buf[j++] = ((*ptr) >> 24) & 0xff;
|
|
ptr++;
|
|
}
|
|
jbuf = (JSAMPROW *)(&buf);
|
|
jpeg_write_scanlines(&cinfo, jbuf, 1);
|
|
}
|
|
|
|
jpeg_finish_compress(&cinfo);
|
|
jpeg_destroy_compress(&cinfo);
|
|
|
|
d2 = dst;
|
|
sz2 = sz;
|
|
}
|
|
d = malloc(12 + sz1 + sz2);
|
|
if (!d)
|
|
{
|
|
free(d1);
|
|
free(d2);
|
|
return NULL;
|
|
}
|
|
|
|
header = (int *)d;
|
|
header[0] = 0xbeeff00d;
|
|
header[1] = sz1;
|
|
header[2] = sz2;
|
|
if (_eet_image_words_bigendian)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 3; i++) SWAP32(header[i]);
|
|
}
|
|
|
|
memcpy(d + 12, d1, sz1);
|
|
memcpy(d + 12 + sz1, d2, sz2);
|
|
|
|
free(d1);
|
|
free(d2);
|
|
*size = 12 + sz1 + sz2;
|
|
return d;
|
|
}
|
|
|
|
EAPI int
|
|
eet_data_image_write_cipher(Eet_File *ef,
|
|
const char *name,
|
|
const char *cipher_key,
|
|
const void *data,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
int alpha,
|
|
int comp,
|
|
int quality,
|
|
int lossy)
|
|
{
|
|
void *d = NULL;
|
|
int size = 0;
|
|
|
|
d = eet_data_image_encode(data, &size, w, h, alpha, comp, quality, lossy);
|
|
if (d)
|
|
{
|
|
int v;
|
|
|
|
v = eet_write_cipher(ef, name, d, size, 0, cipher_key);
|
|
free(d);
|
|
return v;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
EAPI int
|
|
eet_data_image_write(Eet_File *ef,
|
|
const char *name,
|
|
const void *data,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
int alpha,
|
|
int comp,
|
|
int quality,
|
|
int lossy)
|
|
{
|
|
return eet_data_image_write_cipher(ef,
|
|
name,
|
|
NULL,
|
|
data,
|
|
w,
|
|
h,
|
|
alpha,
|
|
comp,
|
|
quality,
|
|
lossy);
|
|
}
|
|
|
|
EAPI void *
|
|
eet_data_image_read_cipher(Eet_File *ef,
|
|
const char *name,
|
|
const char *cipher_key,
|
|
unsigned int *w,
|
|
unsigned int *h,
|
|
int *alpha,
|
|
int *comp,
|
|
int *quality,
|
|
int *lossy)
|
|
{
|
|
unsigned int *d = NULL;
|
|
void *data = NULL;
|
|
int free_data = 0;
|
|
int size;
|
|
|
|
if (!cipher_key)
|
|
data = (void *)eet_read_direct(ef, name, &size);
|
|
|
|
if (!data)
|
|
{
|
|
data = eet_read_cipher(ef, name, &size, cipher_key);
|
|
free_data = 1;
|
|
if (!data)
|
|
return NULL;
|
|
}
|
|
|
|
d = eet_data_image_decode(data, size, w, h, alpha, comp, quality, lossy);
|
|
|
|
if (free_data)
|
|
free(data);
|
|
|
|
return d;
|
|
}
|
|
|
|
EAPI void *
|
|
eet_data_image_read(Eet_File *ef,
|
|
const char *name,
|
|
unsigned int *w,
|
|
unsigned int *h,
|
|
int *alpha,
|
|
int *comp,
|
|
int *quality,
|
|
int *lossy)
|
|
{
|
|
return eet_data_image_read_cipher(ef, name, NULL, w, h, alpha,
|
|
comp, quality, lossy);
|
|
}
|
|
|
|
EAPI int
|
|
eet_data_image_read_to_surface_cipher(Eet_File *ef,
|
|
const char *name,
|
|
const char *cipher_key,
|
|
unsigned int src_x,
|
|
unsigned int src_y,
|
|
unsigned int *d,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
unsigned int row_stride,
|
|
int *alpha,
|
|
int *comp,
|
|
int *quality,
|
|
int *lossy)
|
|
{
|
|
void *data = NULL;
|
|
int free_data = 0;
|
|
int res = 1;
|
|
int size;
|
|
|
|
if (!cipher_key)
|
|
data = (void *)eet_read_direct(ef, name, &size);
|
|
|
|
if (!data)
|
|
{
|
|
data = eet_read_cipher(ef, name, &size, cipher_key);
|
|
free_data = 1;
|
|
if (!data)
|
|
return 0;
|
|
}
|
|
|
|
res = eet_data_image_decode_to_surface(data, size, src_x, src_y, d,
|
|
w, h, row_stride, alpha,
|
|
comp, quality, lossy);
|
|
|
|
if (free_data)
|
|
free(data);
|
|
|
|
return res;
|
|
}
|
|
|
|
EAPI int
|
|
eet_data_image_read_to_surface(Eet_File *ef,
|
|
const char *name,
|
|
unsigned int src_x,
|
|
unsigned int src_y,
|
|
unsigned int *d,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
unsigned int row_stride,
|
|
int *alpha,
|
|
int *comp,
|
|
int *quality,
|
|
int *lossy)
|
|
{
|
|
return eet_data_image_read_to_surface_cipher(ef, name, NULL,
|
|
src_x, src_y, d,
|
|
w, h, row_stride,
|
|
alpha, comp, quality,
|
|
lossy);
|
|
}
|
|
|
|
EAPI int
|
|
eet_data_image_header_read_cipher(Eet_File *ef,
|
|
const char *name,
|
|
const char *cipher_key,
|
|
unsigned int *w,
|
|
unsigned int *h,
|
|
int *alpha,
|
|
int *comp,
|
|
int *quality,
|
|
int *lossy)
|
|
{
|
|
void *data = NULL;
|
|
int size = 0;
|
|
int free_data = 0;
|
|
int d;
|
|
|
|
if (!cipher_key)
|
|
data = (void *)eet_read_direct(ef, name, &size);
|
|
|
|
if (!data)
|
|
{
|
|
data = eet_read_cipher(ef, name, &size, cipher_key);
|
|
free_data = 1;
|
|
if (!data)
|
|
return 0;
|
|
}
|
|
|
|
d = eet_data_image_header_decode(data, size, w, h, alpha,
|
|
comp, quality, lossy);
|
|
if (free_data)
|
|
free(data);
|
|
|
|
return d;
|
|
}
|
|
|
|
EAPI int
|
|
eet_data_image_header_read(Eet_File *ef,
|
|
const char *name,
|
|
unsigned int *w,
|
|
unsigned int *h,
|
|
int *alpha,
|
|
int *comp,
|
|
int *quality,
|
|
int *lossy)
|
|
{
|
|
return eet_data_image_header_read_cipher(ef, name, NULL,
|
|
w, h, alpha,
|
|
comp, quality, lossy);
|
|
}
|
|
|
|
EAPI void *
|
|
eet_data_image_encode_cipher(const void *data,
|
|
const char *cipher_key,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
int alpha,
|
|
int comp,
|
|
int quality,
|
|
int lossy,
|
|
int *size_ret)
|
|
{
|
|
void *d = NULL;
|
|
void *ciphered_d = NULL;
|
|
unsigned int ciphered_sz = 0;
|
|
int size = 0;
|
|
|
|
if (lossy == 0)
|
|
{
|
|
if (comp > 0)
|
|
d = eet_data_image_lossless_compressed_convert(&size, data,
|
|
w, h, alpha, comp);
|
|
|
|
/* eet_data_image_lossless_compressed_convert will refuse to compress something
|
|
if the result is bigger than the entry. */
|
|
if (comp <= 0 || !d)
|
|
d = eet_data_image_lossless_convert(&size, data, w, h, alpha);
|
|
}
|
|
else
|
|
{
|
|
if (!alpha)
|
|
d = eet_data_image_jpeg_convert(&size, data, w, h, alpha, quality);
|
|
else
|
|
d = eet_data_image_jpeg_alpha_convert(&size, data,
|
|
w, h, alpha, quality);
|
|
}
|
|
|
|
if (cipher_key)
|
|
{
|
|
if(!eet_cipher(d, size, cipher_key, strlen(cipher_key), &ciphered_d,
|
|
&ciphered_sz))
|
|
{
|
|
if (d)
|
|
free(d);
|
|
|
|
d = ciphered_d;
|
|
size = ciphered_sz;
|
|
}
|
|
else
|
|
if (ciphered_d)
|
|
free(ciphered_d);
|
|
}
|
|
|
|
if (size_ret)
|
|
*size_ret = size;
|
|
|
|
return d;
|
|
}
|
|
|
|
EAPI void *
|
|
eet_data_image_encode(const void *data,
|
|
int *size_ret,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
int alpha,
|
|
int comp,
|
|
int quality,
|
|
int lossy)
|
|
{
|
|
return eet_data_image_encode_cipher(data, NULL, w, h, alpha,
|
|
comp, quality, lossy, size_ret);
|
|
}
|
|
|
|
EAPI int
|
|
eet_data_image_header_decode_cipher(const void *data,
|
|
const char *cipher_key,
|
|
int size,
|
|
unsigned int *w,
|
|
unsigned int *h,
|
|
int *alpha,
|
|
int *comp,
|
|
int *quality,
|
|
int *lossy)
|
|
{
|
|
int header[8];
|
|
void *deciphered_d = NULL;
|
|
unsigned int deciphered_sz = 0;
|
|
|
|
if (cipher_key)
|
|
{
|
|
if (!eet_decipher(data, size, cipher_key, strlen(cipher_key),
|
|
&deciphered_d, &deciphered_sz))
|
|
{
|
|
data = deciphered_d;
|
|
size = deciphered_sz;
|
|
}
|
|
else
|
|
if (deciphered_d)
|
|
free(deciphered_d);
|
|
}
|
|
|
|
if (_eet_image_words_bigendian == -1)
|
|
{
|
|
unsigned long int v;
|
|
|
|
v = htonl(0x12345678);
|
|
if (v == 0x12345678)
|
|
_eet_image_words_bigendian = 1;
|
|
else
|
|
_eet_image_words_bigendian = 0;
|
|
}
|
|
|
|
if (size < 32)
|
|
return 0;
|
|
|
|
memcpy(header, data, 32);
|
|
if (_eet_image_words_bigendian)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 8; i++) SWAP32(header[i]);
|
|
}
|
|
|
|
if ((unsigned)header[0] == 0xac1dfeed)
|
|
{
|
|
int iw, ih, al, cp;
|
|
|
|
iw = header[1];
|
|
ih = header[2];
|
|
al = header[3];
|
|
cp = header[4];
|
|
if ((iw < 1) || (ih < 1) || (iw > 8192) || (ih > 8192))
|
|
return 0;
|
|
|
|
if ((cp == 0) && (size < ((iw * ih * 4) + 32)))
|
|
return 0;
|
|
|
|
if (w)
|
|
*w = iw;
|
|
|
|
if (h)
|
|
*h = ih;
|
|
|
|
if (alpha)
|
|
*alpha = al ? 1 : 0;
|
|
|
|
if (comp)
|
|
*comp = cp;
|
|
|
|
if (lossy)
|
|
*lossy = 0;
|
|
|
|
if (quality)
|
|
*quality = 100;
|
|
|
|
return 1;
|
|
}
|
|
else if ((unsigned)header[0] == 0xbeeff00d)
|
|
{
|
|
unsigned int iw = 0, ih = 0;
|
|
unsigned const char *dt;
|
|
int sz1;
|
|
int ok;
|
|
|
|
sz1 = header[1];
|
|
/* sz2 = header[2]; */
|
|
dt = data;
|
|
dt += 12;
|
|
ok = eet_data_image_jpeg_header_decode(dt, sz1, &iw, &ih);
|
|
if (ok)
|
|
{
|
|
if (w)
|
|
*w = iw;
|
|
|
|
if (h)
|
|
*h = ih;
|
|
|
|
if (alpha)
|
|
*alpha = 1;
|
|
|
|
if (comp)
|
|
*comp = 0;
|
|
|
|
if (lossy)
|
|
*lossy = 1;
|
|
|
|
if (quality)
|
|
*quality = 75;
|
|
|
|
return 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
unsigned int iw = 0, ih = 0;
|
|
int ok;
|
|
|
|
ok = eet_data_image_jpeg_header_decode(data, size, &iw, &ih);
|
|
if (ok)
|
|
{
|
|
if (w)
|
|
*w = iw;
|
|
|
|
if (h)
|
|
*h = ih;
|
|
|
|
if (alpha)
|
|
*alpha = 0;
|
|
|
|
if (comp)
|
|
*comp = 0;
|
|
|
|
if (lossy)
|
|
*lossy = 1;
|
|
|
|
if (quality)
|
|
*quality = 75;
|
|
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
EAPI int
|
|
eet_data_image_header_decode(const void *data,
|
|
int size,
|
|
unsigned int *w,
|
|
unsigned int *h,
|
|
int *alpha,
|
|
int *comp,
|
|
int *quality,
|
|
int *lossy)
|
|
{
|
|
return eet_data_image_header_decode_cipher(data,
|
|
NULL,
|
|
size,
|
|
w,
|
|
h,
|
|
alpha,
|
|
comp,
|
|
quality,
|
|
lossy);
|
|
}
|
|
|
|
static void
|
|
_eet_data_image_copy_buffer(const unsigned int *src,
|
|
unsigned int src_x,
|
|
unsigned int src_y,
|
|
unsigned int src_w,
|
|
unsigned int *dst,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
unsigned int row_stride)
|
|
{
|
|
src += src_x + src_y * src_w;
|
|
|
|
if (row_stride == src_w * 4 && w == src_w)
|
|
memcpy(dst, src, row_stride * h);
|
|
else
|
|
{
|
|
unsigned int *over = dst;
|
|
unsigned int y;
|
|
|
|
for (y = 0; y < h; ++y, src += src_w, over += row_stride)
|
|
memcpy(over, src, w * 4);
|
|
}
|
|
}
|
|
|
|
static int
|
|
_eet_data_image_decode_inside(const void *data,
|
|
int size,
|
|
unsigned int src_x,
|
|
unsigned int src_y,
|
|
unsigned int src_w,
|
|
unsigned int src_h,
|
|
unsigned int *d,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
unsigned int row_stride,
|
|
int alpha,
|
|
int comp,
|
|
int quality,
|
|
int lossy)
|
|
{
|
|
if (lossy == 0 && quality == 100)
|
|
{
|
|
unsigned int *body;
|
|
|
|
body = ((unsigned int *)data) + 8;
|
|
if (!comp)
|
|
_eet_data_image_copy_buffer(body, src_x, src_y, src_w, d,
|
|
w, h, row_stride);
|
|
else
|
|
{
|
|
if ((src_h == h) && (src_w == w) && (row_stride == src_w * 4))
|
|
{
|
|
switch (comp)
|
|
{
|
|
case EET_COMPRESSION_VERYFAST:
|
|
case EET_COMPRESSION_SUPERFAST:
|
|
if (LZ4_uncompress((const char *)body,
|
|
(char *)d, w * h * 4)
|
|
!= (size - 32)) return 0;
|
|
break;
|
|
default:
|
|
{
|
|
uLongf dlen = w * h * 4;
|
|
|
|
if (uncompress((Bytef *)d, &dlen, (Bytef *)body,
|
|
(uLongf)(size - 32)) != Z_OK)
|
|
return 0;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
switch (comp)
|
|
{
|
|
case EET_COMPRESSION_VERYFAST:
|
|
case EET_COMPRESSION_SUPERFAST:
|
|
{
|
|
char *dtmp;
|
|
|
|
dtmp = malloc(src_w * src_h * 4);
|
|
if (!dtmp) return 0;
|
|
if (LZ4_uncompress((const char *)body,
|
|
dtmp, w * h * 4)
|
|
!= (size - 32))
|
|
{
|
|
free(dtmp);
|
|
return 0;
|
|
}
|
|
_eet_data_image_copy_buffer((unsigned int *)dtmp,
|
|
src_x, src_y, src_w, d,
|
|
w, h, row_stride);
|
|
free(dtmp);
|
|
}
|
|
break;
|
|
default:
|
|
{
|
|
Bytef *dtmp;
|
|
uLongf dlen = src_w * src_h * 4;
|
|
|
|
/* FIXME: This could create a huge alloc. So
|
|
compressed data and tile could not always work.*/
|
|
dtmp = malloc(dlen);
|
|
if (!dtmp) return 0;
|
|
|
|
if (uncompress(dtmp, &dlen, (Bytef *)body,
|
|
(uLongf)(size - 32)) != Z_OK)
|
|
{
|
|
free(dtmp);
|
|
return 0;
|
|
}
|
|
_eet_data_image_copy_buffer((unsigned int *)dtmp,
|
|
src_x, src_y, src_w, d,
|
|
w, h, row_stride);
|
|
free(dtmp);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* Fix swapiness. */
|
|
if (_eet_image_words_bigendian)
|
|
{
|
|
unsigned int x;
|
|
|
|
for (x = 0; x < (w * h); x++) SWAP32(d[x]);
|
|
}
|
|
}
|
|
else if (comp == 0 && lossy == 1)
|
|
{
|
|
if (alpha)
|
|
{
|
|
unsigned const char *dt;
|
|
int header[8];
|
|
int sz1, sz2;
|
|
|
|
memcpy(header, data, 32);
|
|
if (_eet_image_words_bigendian)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 8; i++) SWAP32(header[i]);
|
|
}
|
|
|
|
sz1 = header[1];
|
|
sz2 = header[2];
|
|
dt = data;
|
|
dt += 12;
|
|
|
|
if (eet_data_image_jpeg_rgb_decode(dt, sz1, src_x, src_y, d, w, h,
|
|
row_stride))
|
|
{
|
|
dt += sz1;
|
|
if (!eet_data_image_jpeg_alpha_decode(dt, sz2, src_x, src_y,
|
|
d, w, h, row_stride))
|
|
return 0;
|
|
}
|
|
}
|
|
else if (!eet_data_image_jpeg_rgb_decode(data, size, src_x, src_y, d, w,
|
|
h, row_stride))
|
|
return 0;
|
|
}
|
|
else
|
|
abort();
|
|
|
|
return 1;
|
|
}
|
|
|
|
EAPI void *
|
|
eet_data_image_decode_cipher(const void *data,
|
|
const char *cipher_key,
|
|
int size,
|
|
unsigned int *w,
|
|
unsigned int *h,
|
|
int *alpha,
|
|
int *comp,
|
|
int *quality,
|
|
int *lossy)
|
|
{
|
|
unsigned int *d = NULL;
|
|
unsigned int iw, ih;
|
|
int ialpha, icompress, iquality, ilossy;
|
|
void *deciphered_d = NULL;
|
|
unsigned int deciphered_sz = 0;
|
|
|
|
if (cipher_key)
|
|
{
|
|
if (!eet_decipher(data, size, cipher_key, strlen(cipher_key),
|
|
&deciphered_d, &deciphered_sz))
|
|
{
|
|
data = deciphered_d;
|
|
size = deciphered_sz;
|
|
}
|
|
else
|
|
if (deciphered_d)
|
|
free(deciphered_d);
|
|
}
|
|
|
|
/* All check are done during header decode, this simplify the code a lot. */
|
|
if (!eet_data_image_header_decode(data, size, &iw, &ih, &ialpha, &icompress,
|
|
&iquality, &ilossy))
|
|
return NULL;
|
|
|
|
d = malloc(iw * ih * 4);
|
|
if (!d)
|
|
return NULL;
|
|
|
|
if (!_eet_data_image_decode_inside(data, size, 0, 0, iw, ih, d, iw, ih, iw *
|
|
4, ialpha, icompress, iquality, ilossy))
|
|
{
|
|
free(d);
|
|
return NULL;
|
|
}
|
|
|
|
if (w)
|
|
*w = iw;
|
|
|
|
if (h)
|
|
*h = ih;
|
|
|
|
if (alpha)
|
|
*alpha = ialpha;
|
|
|
|
if (comp)
|
|
*comp = icompress;
|
|
|
|
if (quality)
|
|
*quality = iquality;
|
|
|
|
if (lossy)
|
|
*lossy = ilossy;
|
|
|
|
return d;
|
|
}
|
|
|
|
EAPI void *
|
|
eet_data_image_decode(const void *data,
|
|
int size,
|
|
unsigned int *w,
|
|
unsigned int *h,
|
|
int *alpha,
|
|
int *comp,
|
|
int *quality,
|
|
int *lossy)
|
|
{
|
|
return eet_data_image_decode_cipher(data, NULL, size, w, h,
|
|
alpha, comp, quality, lossy);
|
|
}
|
|
|
|
EAPI int
|
|
eet_data_image_decode_to_surface_cipher(const void *data,
|
|
const char *cipher_key,
|
|
int size,
|
|
unsigned int src_x,
|
|
unsigned int src_y,
|
|
unsigned int *d,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
unsigned int row_stride,
|
|
int *alpha,
|
|
int *comp,
|
|
int *quality,
|
|
int *lossy)
|
|
{
|
|
unsigned int iw, ih;
|
|
int ialpha, icompress, iquality, ilossy;
|
|
void *deciphered_d = NULL;
|
|
unsigned int deciphered_sz = 0;
|
|
|
|
if (cipher_key)
|
|
{
|
|
if (!eet_decipher(data, size, cipher_key, strlen(cipher_key),
|
|
&deciphered_d, &deciphered_sz))
|
|
{
|
|
data = deciphered_d;
|
|
size = deciphered_sz;
|
|
}
|
|
else
|
|
if (deciphered_d)
|
|
free(deciphered_d);
|
|
}
|
|
|
|
/* All check are done during header decode, this simplify the code a lot. */
|
|
if (!eet_data_image_header_decode(data, size, &iw, &ih, &ialpha, &icompress,
|
|
&iquality, &ilossy))
|
|
return 0;
|
|
|
|
if (!d)
|
|
return 0;
|
|
|
|
if (w * 4 > row_stride)
|
|
return 0;
|
|
|
|
if (w > iw || h > ih)
|
|
return 0;
|
|
|
|
if (!_eet_data_image_decode_inside(data, size, src_x, src_y, iw, ih, d, w, h,
|
|
row_stride, ialpha, icompress, iquality,
|
|
ilossy))
|
|
return 0;
|
|
|
|
if (alpha)
|
|
*alpha = ialpha;
|
|
|
|
if (comp)
|
|
*comp = icompress;
|
|
|
|
if (quality)
|
|
*quality = iquality;
|
|
|
|
if (lossy)
|
|
*lossy = ilossy;
|
|
|
|
return 1;
|
|
}
|
|
|
|
EAPI int
|
|
eet_data_image_decode_to_surface(const void *data,
|
|
int size,
|
|
unsigned int src_x,
|
|
unsigned int src_y,
|
|
unsigned int *d,
|
|
unsigned int w,
|
|
unsigned int h,
|
|
unsigned int row_stride,
|
|
int *alpha,
|
|
int *comp,
|
|
int *quality,
|
|
int *lossy)
|
|
{
|
|
return eet_data_image_decode_to_surface_cipher(data, NULL, size,
|
|
src_x, src_y, d,
|
|
w, h, row_stride,
|
|
alpha, comp, quality,
|
|
lossy);
|
|
}
|
|
|