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![Francois Gouget](/assets/img/avatar_default.png)
Signed-off-by: Francois Gouget <fgouget@free.fr> Signed-off-by: Esme Povirk <esme@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
778 lines
21 KiB
C
778 lines
21 KiB
C
/*
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* Copyright 2009 Vincent Povirk for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#if 0
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#pragma makedep unix
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#endif
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#include "config.h"
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#include "wine/port.h"
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include <stdarg.h>
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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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#ifdef SONAME_LIBJPEG
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/* This is a hack, so jpeglib.h does not redefine INT32 and the like*/
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#define XMD_H
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#define UINT8 JPEG_UINT8
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#define UINT16 JPEG_UINT16
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#define boolean jpeg_boolean
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#undef HAVE_STDLIB_H
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# include <jpeglib.h>
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#undef HAVE_STDLIB_H
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#define HAVE_STDLIB_H 1
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#undef UINT8
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#undef UINT16
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#undef boolean
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#endif
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winternl.h"
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#include "winbase.h"
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#include "objbase.h"
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#include "wincodecs_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
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#ifdef SONAME_LIBJPEG
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WINE_DECLARE_DEBUG_CHANNEL(jpeg);
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static CRITICAL_SECTION init_jpeg_cs;
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static CRITICAL_SECTION_DEBUG init_jpeg_cs_debug =
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{
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0, 0, &init_jpeg_cs,
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{ &init_jpeg_cs_debug.ProcessLocksList,
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&init_jpeg_cs_debug.ProcessLocksList },
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0, 0, { (DWORD_PTR)(__FILE__ ": init_jpeg_cs") }
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};
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static CRITICAL_SECTION init_jpeg_cs = { &init_jpeg_cs_debug, -1, 0, 0, 0, 0 };
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static void *libjpeg_handle;
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#define MAKE_FUNCPTR(f) static typeof(f) * p##f
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MAKE_FUNCPTR(jpeg_CreateCompress);
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MAKE_FUNCPTR(jpeg_CreateDecompress);
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MAKE_FUNCPTR(jpeg_destroy_compress);
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MAKE_FUNCPTR(jpeg_destroy_decompress);
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MAKE_FUNCPTR(jpeg_finish_compress);
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MAKE_FUNCPTR(jpeg_read_header);
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MAKE_FUNCPTR(jpeg_read_scanlines);
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MAKE_FUNCPTR(jpeg_resync_to_restart);
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MAKE_FUNCPTR(jpeg_set_defaults);
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MAKE_FUNCPTR(jpeg_start_compress);
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MAKE_FUNCPTR(jpeg_start_decompress);
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MAKE_FUNCPTR(jpeg_std_error);
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MAKE_FUNCPTR(jpeg_write_scanlines);
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#undef MAKE_FUNCPTR
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static void *load_libjpeg(void)
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{
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void *result;
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RtlEnterCriticalSection(&init_jpeg_cs);
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if((libjpeg_handle = dlopen(SONAME_LIBJPEG, RTLD_NOW)) != NULL) {
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#define LOAD_FUNCPTR(f) \
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if((p##f = dlsym(libjpeg_handle, #f)) == NULL) { \
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ERR("failed to load symbol %s\n", #f); \
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libjpeg_handle = NULL; \
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RtlLeaveCriticalSection(&init_jpeg_cs); \
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return NULL; \
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}
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LOAD_FUNCPTR(jpeg_CreateCompress);
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LOAD_FUNCPTR(jpeg_CreateDecompress);
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LOAD_FUNCPTR(jpeg_destroy_compress);
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LOAD_FUNCPTR(jpeg_destroy_decompress);
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LOAD_FUNCPTR(jpeg_finish_compress);
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LOAD_FUNCPTR(jpeg_read_header);
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LOAD_FUNCPTR(jpeg_read_scanlines);
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LOAD_FUNCPTR(jpeg_resync_to_restart);
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LOAD_FUNCPTR(jpeg_set_defaults);
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LOAD_FUNCPTR(jpeg_start_compress);
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LOAD_FUNCPTR(jpeg_start_decompress);
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LOAD_FUNCPTR(jpeg_std_error);
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LOAD_FUNCPTR(jpeg_write_scanlines);
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#undef LOAD_FUNCPTR
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}
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result = libjpeg_handle;
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RtlLeaveCriticalSection(&init_jpeg_cs);
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return result;
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}
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static void error_exit_fn(j_common_ptr cinfo)
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{
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char message[JMSG_LENGTH_MAX];
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if (ERR_ON(jpeg))
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{
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cinfo->err->format_message(cinfo, message);
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ERR_(jpeg)("%s\n", message);
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}
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longjmp(*(jmp_buf*)cinfo->client_data, 1);
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}
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static void emit_message_fn(j_common_ptr cinfo, int msg_level)
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{
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char message[JMSG_LENGTH_MAX];
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if (msg_level < 0 && ERR_ON(jpeg))
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{
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cinfo->err->format_message(cinfo, message);
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ERR_(jpeg)("%s\n", message);
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}
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else if (msg_level == 0 && WARN_ON(jpeg))
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{
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cinfo->err->format_message(cinfo, message);
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WARN_(jpeg)("%s\n", message);
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}
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else if (msg_level > 0 && TRACE_ON(jpeg))
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{
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cinfo->err->format_message(cinfo, message);
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TRACE_(jpeg)("%s\n", message);
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}
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}
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struct jpeg_decoder {
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struct decoder decoder;
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struct decoder_frame frame;
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BOOL cinfo_initialized;
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IStream *stream;
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struct jpeg_decompress_struct cinfo;
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struct jpeg_error_mgr jerr;
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struct jpeg_source_mgr source_mgr;
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BYTE source_buffer[1024];
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UINT stride;
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BYTE *image_data;
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};
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static inline struct jpeg_decoder *impl_from_decoder(struct decoder* iface)
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{
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return CONTAINING_RECORD(iface, struct jpeg_decoder, decoder);
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}
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static inline struct jpeg_decoder *decoder_from_decompress(j_decompress_ptr decompress)
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{
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return CONTAINING_RECORD(decompress, struct jpeg_decoder, cinfo);
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}
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static void CDECL jpeg_decoder_destroy(struct decoder* iface)
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{
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struct jpeg_decoder *This = impl_from_decoder(iface);
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if (This->cinfo_initialized) pjpeg_destroy_decompress(&This->cinfo);
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free(This->image_data);
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RtlFreeHeap(GetProcessHeap(), 0, This);
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}
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static void source_mgr_init_source(j_decompress_ptr cinfo)
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{
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}
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static jpeg_boolean source_mgr_fill_input_buffer(j_decompress_ptr cinfo)
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{
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struct jpeg_decoder *This = decoder_from_decompress(cinfo);
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HRESULT hr;
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ULONG bytesread;
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hr = stream_read(This->stream, This->source_buffer, 1024, &bytesread);
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if (FAILED(hr) || bytesread == 0)
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{
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return FALSE;
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}
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else
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{
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This->source_mgr.next_input_byte = This->source_buffer;
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This->source_mgr.bytes_in_buffer = bytesread;
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return TRUE;
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}
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}
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static void source_mgr_skip_input_data(j_decompress_ptr cinfo, long num_bytes)
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{
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struct jpeg_decoder *This = decoder_from_decompress(cinfo);
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if (num_bytes > This->source_mgr.bytes_in_buffer)
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{
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stream_seek(This->stream, num_bytes - This->source_mgr.bytes_in_buffer, STREAM_SEEK_CUR, NULL);
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This->source_mgr.bytes_in_buffer = 0;
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}
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else if (num_bytes > 0)
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{
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This->source_mgr.next_input_byte += num_bytes;
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This->source_mgr.bytes_in_buffer -= num_bytes;
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}
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}
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static void source_mgr_term_source(j_decompress_ptr cinfo)
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{
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}
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static HRESULT CDECL jpeg_decoder_initialize(struct decoder* iface, IStream *stream, struct decoder_stat *st)
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{
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struct jpeg_decoder *This = impl_from_decoder(iface);
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int ret;
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jmp_buf jmpbuf;
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UINT data_size, i;
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if (This->cinfo_initialized)
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return WINCODEC_ERR_WRONGSTATE;
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pjpeg_std_error(&This->jerr);
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This->jerr.error_exit = error_exit_fn;
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This->jerr.emit_message = emit_message_fn;
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This->cinfo.err = &This->jerr;
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This->cinfo.client_data = jmpbuf;
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if (setjmp(jmpbuf))
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return E_FAIL;
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pjpeg_CreateDecompress(&This->cinfo, JPEG_LIB_VERSION, sizeof(struct jpeg_decompress_struct));
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This->cinfo_initialized = TRUE;
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This->stream = stream;
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stream_seek(This->stream, 0, STREAM_SEEK_SET, NULL);
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This->source_mgr.bytes_in_buffer = 0;
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This->source_mgr.init_source = source_mgr_init_source;
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This->source_mgr.fill_input_buffer = source_mgr_fill_input_buffer;
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This->source_mgr.skip_input_data = source_mgr_skip_input_data;
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This->source_mgr.resync_to_restart = pjpeg_resync_to_restart;
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This->source_mgr.term_source = source_mgr_term_source;
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This->cinfo.src = &This->source_mgr;
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ret = pjpeg_read_header(&This->cinfo, TRUE);
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if (ret != JPEG_HEADER_OK) {
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WARN("Jpeg image in stream has bad format, read header returned %d.\n",ret);
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return E_FAIL;
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}
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switch (This->cinfo.jpeg_color_space)
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{
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case JCS_GRAYSCALE:
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This->cinfo.out_color_space = JCS_GRAYSCALE;
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This->frame.bpp = 8;
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This->frame.pixel_format = GUID_WICPixelFormat8bppGray;
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break;
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case JCS_RGB:
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case JCS_YCbCr:
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This->cinfo.out_color_space = JCS_RGB;
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This->frame.bpp = 24;
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This->frame.pixel_format = GUID_WICPixelFormat24bppBGR;
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break;
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case JCS_CMYK:
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case JCS_YCCK:
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This->cinfo.out_color_space = JCS_CMYK;
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This->frame.bpp = 32;
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This->frame.pixel_format = GUID_WICPixelFormat32bppCMYK;
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break;
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default:
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ERR("Unknown JPEG color space %i\n", This->cinfo.jpeg_color_space);
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return E_FAIL;
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}
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if (!pjpeg_start_decompress(&This->cinfo))
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{
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ERR("jpeg_start_decompress failed\n");
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return E_FAIL;
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}
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This->frame.width = This->cinfo.output_width;
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This->frame.height = This->cinfo.output_height;
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switch (This->cinfo.density_unit)
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{
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case 2: /* pixels per centimeter */
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This->frame.dpix = This->cinfo.X_density * 2.54;
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This->frame.dpiy = This->cinfo.Y_density * 2.54;
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break;
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case 1: /* pixels per inch */
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This->frame.dpix = This->cinfo.X_density;
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This->frame.dpiy = This->cinfo.Y_density;
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break;
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case 0: /* unknown */
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default:
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This->frame.dpix = This->frame.dpiy = 96.0;
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break;
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}
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This->frame.num_color_contexts = 0;
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This->frame.num_colors = 0;
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This->stride = (This->frame.bpp * This->cinfo.output_width + 7) / 8;
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data_size = This->stride * This->cinfo.output_height;
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This->image_data = malloc(data_size);
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if (!This->image_data)
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return E_OUTOFMEMORY;
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while (This->cinfo.output_scanline < This->cinfo.output_height)
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{
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UINT first_scanline = This->cinfo.output_scanline;
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UINT max_rows;
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JSAMPROW out_rows[4];
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JDIMENSION ret;
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max_rows = min(This->cinfo.output_height-first_scanline, 4);
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for (i=0; i<max_rows; i++)
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out_rows[i] = This->image_data + This->stride * (first_scanline+i);
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ret = pjpeg_read_scanlines(&This->cinfo, out_rows, max_rows);
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if (ret == 0)
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{
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ERR("read_scanlines failed\n");
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return E_FAIL;
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}
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}
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if (This->frame.bpp == 24)
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{
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/* libjpeg gives us RGB data and we want BGR, so byteswap the data */
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reverse_bgr8(3, This->image_data,
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This->cinfo.output_width, This->cinfo.output_height,
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This->stride);
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}
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if (This->cinfo.out_color_space == JCS_CMYK && This->cinfo.saw_Adobe_marker)
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{
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/* Adobe JPEG's have inverted CMYK data. */
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for (i=0; i<data_size; i++)
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This->image_data[i] ^= 0xff;
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}
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st->frame_count = 1;
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st->flags = WICBitmapDecoderCapabilityCanDecodeAllImages |
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WICBitmapDecoderCapabilityCanDecodeSomeImages |
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WICBitmapDecoderCapabilityCanEnumerateMetadata |
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DECODER_FLAGS_UNSUPPORTED_COLOR_CONTEXT;
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return S_OK;
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}
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static HRESULT CDECL jpeg_decoder_get_frame_info(struct decoder* iface, UINT frame, struct decoder_frame *info)
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{
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struct jpeg_decoder *This = impl_from_decoder(iface);
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*info = This->frame;
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return S_OK;
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}
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static HRESULT CDECL jpeg_decoder_copy_pixels(struct decoder* iface, UINT frame,
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const WICRect *prc, UINT stride, UINT buffersize, BYTE *buffer)
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{
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struct jpeg_decoder *This = impl_from_decoder(iface);
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return copy_pixels(This->frame.bpp, This->image_data,
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This->frame.width, This->frame.height, This->stride,
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prc, stride, buffersize, buffer);
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}
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static HRESULT CDECL jpeg_decoder_get_metadata_blocks(struct decoder* iface, UINT frame,
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UINT *count, struct decoder_block **blocks)
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{
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FIXME("stub\n");
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*count = 0;
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*blocks = NULL;
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return S_OK;
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}
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static HRESULT CDECL jpeg_decoder_get_color_context(struct decoder* This, UINT frame, UINT num,
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BYTE **data, DWORD *datasize)
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{
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/* This should never be called because we report 0 color contexts and the unsupported flag. */
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FIXME("stub\n");
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return E_NOTIMPL;
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}
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static const struct decoder_funcs jpeg_decoder_vtable = {
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jpeg_decoder_initialize,
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jpeg_decoder_get_frame_info,
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jpeg_decoder_copy_pixels,
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jpeg_decoder_get_metadata_blocks,
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jpeg_decoder_get_color_context,
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jpeg_decoder_destroy
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};
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HRESULT CDECL jpeg_decoder_create(struct decoder_info *info, struct decoder **result)
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{
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struct jpeg_decoder *This;
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if (!load_libjpeg())
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{
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ERR("Failed reading JPEG because unable to find %s\n", SONAME_LIBJPEG);
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return E_FAIL;
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}
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This = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(struct jpeg_decoder));
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if (!This) return E_OUTOFMEMORY;
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This->decoder.vtable = &jpeg_decoder_vtable;
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This->cinfo_initialized = FALSE;
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This->stream = NULL;
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This->image_data = NULL;
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*result = &This->decoder;
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info->container_format = GUID_ContainerFormatJpeg;
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info->block_format = GUID_ContainerFormatJpeg;
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info->clsid = CLSID_WICJpegDecoder;
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return S_OK;
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}
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typedef struct jpeg_compress_format {
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const WICPixelFormatGUID *guid;
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int bpp;
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int num_components;
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J_COLOR_SPACE color_space;
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int swap_rgb;
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} jpeg_compress_format;
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static const jpeg_compress_format compress_formats[] = {
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{ &GUID_WICPixelFormat24bppBGR, 24, 3, JCS_RGB, 1 },
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{ &GUID_WICPixelFormat32bppCMYK, 32, 4, JCS_CMYK },
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{ &GUID_WICPixelFormat8bppGray, 8, 1, JCS_GRAYSCALE },
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{ 0 }
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};
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struct jpeg_encoder
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{
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struct encoder encoder;
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IStream *stream;
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BOOL cinfo_initialized;
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struct jpeg_compress_struct cinfo;
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struct jpeg_error_mgr jerr;
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struct jpeg_destination_mgr dest_mgr;
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struct encoder_frame encoder_frame;
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const jpeg_compress_format *format;
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BYTE dest_buffer[1024];
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};
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static inline struct jpeg_encoder *impl_from_encoder(struct encoder* iface)
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{
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return CONTAINING_RECORD(iface, struct jpeg_encoder, encoder);
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}
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static inline struct jpeg_encoder *encoder_from_compress(j_compress_ptr compress)
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{
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return CONTAINING_RECORD(compress, struct jpeg_encoder, cinfo);
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}
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static void dest_mgr_init_destination(j_compress_ptr cinfo)
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{
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struct jpeg_encoder *This = encoder_from_compress(cinfo);
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This->dest_mgr.next_output_byte = This->dest_buffer;
|
|
This->dest_mgr.free_in_buffer = sizeof(This->dest_buffer);
|
|
}
|
|
|
|
static jpeg_boolean dest_mgr_empty_output_buffer(j_compress_ptr cinfo)
|
|
{
|
|
struct jpeg_encoder *This = encoder_from_compress(cinfo);
|
|
HRESULT hr;
|
|
ULONG byteswritten;
|
|
|
|
hr = stream_write(This->stream, This->dest_buffer,
|
|
sizeof(This->dest_buffer), &byteswritten);
|
|
|
|
if (hr != S_OK || byteswritten == 0)
|
|
{
|
|
ERR("Failed writing data, hr=%x\n", hr);
|
|
return FALSE;
|
|
}
|
|
|
|
This->dest_mgr.next_output_byte = This->dest_buffer;
|
|
This->dest_mgr.free_in_buffer = sizeof(This->dest_buffer);
|
|
return TRUE;
|
|
}
|
|
|
|
static void dest_mgr_term_destination(j_compress_ptr cinfo)
|
|
{
|
|
struct jpeg_encoder *This = encoder_from_compress(cinfo);
|
|
ULONG byteswritten;
|
|
HRESULT hr;
|
|
|
|
if (This->dest_mgr.free_in_buffer != sizeof(This->dest_buffer))
|
|
{
|
|
hr = stream_write(This->stream, This->dest_buffer,
|
|
sizeof(This->dest_buffer) - This->dest_mgr.free_in_buffer, &byteswritten);
|
|
|
|
if (hr != S_OK || byteswritten == 0)
|
|
ERR("Failed writing data, hr=%x\n", hr);
|
|
}
|
|
}
|
|
|
|
static HRESULT CDECL jpeg_encoder_initialize(struct encoder* iface, IStream *stream)
|
|
{
|
|
struct jpeg_encoder *This = impl_from_encoder(iface);
|
|
jmp_buf jmpbuf;
|
|
|
|
pjpeg_std_error(&This->jerr);
|
|
|
|
This->jerr.error_exit = error_exit_fn;
|
|
This->jerr.emit_message = emit_message_fn;
|
|
|
|
This->cinfo.err = &This->jerr;
|
|
|
|
This->cinfo.client_data = jmpbuf;
|
|
|
|
if (setjmp(jmpbuf))
|
|
return E_FAIL;
|
|
|
|
pjpeg_CreateCompress(&This->cinfo, JPEG_LIB_VERSION, sizeof(struct jpeg_compress_struct));
|
|
|
|
This->stream = stream;
|
|
|
|
This->dest_mgr.next_output_byte = This->dest_buffer;
|
|
This->dest_mgr.free_in_buffer = sizeof(This->dest_buffer);
|
|
|
|
This->dest_mgr.init_destination = dest_mgr_init_destination;
|
|
This->dest_mgr.empty_output_buffer = dest_mgr_empty_output_buffer;
|
|
This->dest_mgr.term_destination = dest_mgr_term_destination;
|
|
|
|
This->cinfo.dest = &This->dest_mgr;
|
|
|
|
This->cinfo_initialized = TRUE;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT CDECL jpeg_encoder_get_supported_format(struct encoder* iface, GUID *pixel_format,
|
|
DWORD *bpp, BOOL *indexed)
|
|
{
|
|
int i;
|
|
|
|
for (i=0; compress_formats[i].guid; i++)
|
|
{
|
|
if (memcmp(compress_formats[i].guid, pixel_format, sizeof(GUID)) == 0)
|
|
break;
|
|
}
|
|
|
|
if (!compress_formats[i].guid) i = 0;
|
|
|
|
*pixel_format = *compress_formats[i].guid;
|
|
*bpp = compress_formats[i].bpp;
|
|
*indexed = FALSE;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT CDECL jpeg_encoder_create_frame(struct encoder* iface, const struct encoder_frame *frame)
|
|
{
|
|
struct jpeg_encoder *This = impl_from_encoder(iface);
|
|
jmp_buf jmpbuf;
|
|
int i;
|
|
|
|
This->encoder_frame = *frame;
|
|
|
|
if (setjmp(jmpbuf))
|
|
return E_FAIL;
|
|
|
|
This->cinfo.client_data = jmpbuf;
|
|
|
|
for (i=0; compress_formats[i].guid; i++)
|
|
{
|
|
if (memcmp(compress_formats[i].guid, &frame->pixel_format, sizeof(GUID)) == 0)
|
|
break;
|
|
}
|
|
This->format = &compress_formats[i];
|
|
|
|
This->cinfo.image_width = frame->width;
|
|
This->cinfo.image_height = frame->height;
|
|
This->cinfo.input_components = This->format->num_components;
|
|
This->cinfo.in_color_space = This->format->color_space;
|
|
|
|
pjpeg_set_defaults(&This->cinfo);
|
|
|
|
if (frame->dpix != 0.0 && frame->dpiy != 0.0)
|
|
{
|
|
This->cinfo.density_unit = 1; /* dots per inch */
|
|
This->cinfo.X_density = frame->dpix;
|
|
This->cinfo.Y_density = frame->dpiy;
|
|
}
|
|
|
|
pjpeg_start_compress(&This->cinfo, TRUE);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT CDECL jpeg_encoder_write_lines(struct encoder* iface, BYTE *data,
|
|
DWORD line_count, DWORD stride)
|
|
{
|
|
struct jpeg_encoder *This = impl_from_encoder(iface);
|
|
jmp_buf jmpbuf;
|
|
BYTE *swapped_data = NULL, *current_row;
|
|
UINT line;
|
|
int row_size;
|
|
|
|
if (setjmp(jmpbuf))
|
|
{
|
|
free(swapped_data);
|
|
return E_FAIL;
|
|
}
|
|
|
|
This->cinfo.client_data = jmpbuf;
|
|
|
|
row_size = This->format->bpp / 8 * This->encoder_frame.width;
|
|
|
|
if (This->format->swap_rgb)
|
|
{
|
|
swapped_data = malloc(row_size);
|
|
if (!swapped_data)
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
for (line=0; line < line_count; line++)
|
|
{
|
|
if (This->format->swap_rgb)
|
|
{
|
|
UINT x;
|
|
|
|
memcpy(swapped_data, data + (stride * line), row_size);
|
|
|
|
for (x=0; x < This->encoder_frame.width; x++)
|
|
{
|
|
BYTE b;
|
|
|
|
b = swapped_data[x*3];
|
|
swapped_data[x*3] = swapped_data[x*3+2];
|
|
swapped_data[x*3+2] = b;
|
|
}
|
|
|
|
current_row = swapped_data;
|
|
}
|
|
else
|
|
current_row = data + (stride * line);
|
|
|
|
if (!pjpeg_write_scanlines(&This->cinfo, ¤t_row, 1))
|
|
{
|
|
ERR("failed writing scanlines\n");
|
|
free(swapped_data);
|
|
return E_FAIL;
|
|
}
|
|
}
|
|
|
|
free(swapped_data);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT CDECL jpeg_encoder_commit_frame(struct encoder* iface)
|
|
{
|
|
struct jpeg_encoder *This = impl_from_encoder(iface);
|
|
jmp_buf jmpbuf;
|
|
|
|
if (setjmp(jmpbuf))
|
|
return E_FAIL;
|
|
|
|
This->cinfo.client_data = jmpbuf;
|
|
|
|
pjpeg_finish_compress(&This->cinfo);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT CDECL jpeg_encoder_commit_file(struct encoder* iface)
|
|
{
|
|
return S_OK;
|
|
}
|
|
|
|
static void CDECL jpeg_encoder_destroy(struct encoder* iface)
|
|
{
|
|
struct jpeg_encoder *This = impl_from_encoder(iface);
|
|
if (This->cinfo_initialized)
|
|
pjpeg_destroy_compress(&This->cinfo);
|
|
RtlFreeHeap(GetProcessHeap(), 0, This);
|
|
};
|
|
|
|
static const struct encoder_funcs jpeg_encoder_vtable = {
|
|
jpeg_encoder_initialize,
|
|
jpeg_encoder_get_supported_format,
|
|
jpeg_encoder_create_frame,
|
|
jpeg_encoder_write_lines,
|
|
jpeg_encoder_commit_frame,
|
|
jpeg_encoder_commit_file,
|
|
jpeg_encoder_destroy
|
|
};
|
|
|
|
HRESULT CDECL jpeg_encoder_create(struct encoder_info *info, struct encoder **result)
|
|
{
|
|
struct jpeg_encoder *This;
|
|
|
|
if (!load_libjpeg())
|
|
{
|
|
ERR("Failed writing JPEG because unable to find %s\n", SONAME_LIBJPEG);
|
|
return E_FAIL;
|
|
}
|
|
|
|
This = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(struct jpeg_encoder));
|
|
if (!This) return E_OUTOFMEMORY;
|
|
|
|
This->encoder.vtable = &jpeg_encoder_vtable;
|
|
This->stream = NULL;
|
|
This->cinfo_initialized = FALSE;
|
|
*result = &This->encoder;
|
|
|
|
info->flags = ENCODER_FLAGS_SUPPORTS_METADATA;
|
|
info->container_format = GUID_ContainerFormatJpeg;
|
|
info->clsid = CLSID_WICJpegEncoder;
|
|
info->encoder_options[0] = ENCODER_OPTION_IMAGE_QUALITY;
|
|
info->encoder_options[1] = ENCODER_OPTION_BITMAP_TRANSFORM;
|
|
info->encoder_options[2] = ENCODER_OPTION_LUMINANCE;
|
|
info->encoder_options[3] = ENCODER_OPTION_CHROMINANCE;
|
|
info->encoder_options[4] = ENCODER_OPTION_YCRCB_SUBSAMPLING;
|
|
info->encoder_options[5] = ENCODER_OPTION_SUPPRESS_APP0;
|
|
info->encoder_options[6] = ENCODER_OPTION_END;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
#else /* !defined(SONAME_LIBJPEG) */
|
|
|
|
HRESULT CDECL jpeg_decoder_create(struct decoder_info *info, struct decoder **result)
|
|
{
|
|
ERR("Trying to load JPEG picture, but JPEG support is not compiled in.\n");
|
|
return E_FAIL;
|
|
}
|
|
|
|
HRESULT CDECL jpeg_encoder_create(struct encoder_info *info, struct encoder **result)
|
|
{
|
|
ERR("Trying to save JPEG picture, but JPEG support is not compiled in.\n");
|
|
return E_FAIL;
|
|
}
|
|
|
|
#endif
|