1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
// Copyright 2017 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "core/fxcodec/lgif/cgifdecompressor.h"
#include <utility>
#include "core/fxcodec/codec/ccodec_gifmodule.h"
#include "core/fxcodec/lgif/fx_gif.h"
#include "third_party/base/ptr_util.h"
#include "third_party/base/stl_util.h"
FXGIF_Context::FXGIF_Context() {}
FXGIF_Context::~FXGIF_Context() {}
CGifDecompressor::CGifDecompressor(FXGIF_Context* p, char* error_string)
: decode_status(GIF_D_STATUS_SIG),
err_ptr(error_string),
context_ptr(p),
cmt_data_ptr(new CFX_ByteString),
pt_ptr_arr_ptr(new std::vector<GifPlainText*>),
img_ptr_arr_ptr(new std::vector<GifImage*>) {}
CGifDecompressor::~CGifDecompressor() {
// TODO(npm): fix ownership in CGifDecompressor to avoid all of the frees and
// deletes in here.
GifPalette* pGlobalPal = m_GlobalPalette.data();
if (img_ptr_arr_ptr) {
size_t size_img_arr = img_ptr_arr_ptr->size();
for (size_t i = 0; i < size_img_arr; i++) {
GifImage* p = (*img_ptr_arr_ptr)[i];
FX_Free(p->image_info_ptr);
FX_Free(p->image_gce_ptr);
FX_Free(p->image_row_buf);
if (p->local_pal_ptr && p->local_pal_ptr != pGlobalPal)
FX_Free(p->local_pal_ptr);
FX_Free(p);
}
img_ptr_arr_ptr->clear();
delete img_ptr_arr_ptr;
}
delete cmt_data_ptr;
FX_Free(gce_ptr);
if (pt_ptr_arr_ptr) {
size_t size_pt_arr = pt_ptr_arr_ptr->size();
for (size_t i = 0; i < size_pt_arr; i++) {
GifPlainText* p = (*pt_ptr_arr_ptr)[i];
FX_Free(p->gce_ptr);
FX_Free(p->pte_ptr);
delete p->string_ptr;
FX_Free(p);
}
pt_ptr_arr_ptr->clear();
delete pt_ptr_arr_ptr;
}
}
void CGifDecompressor::ErrorData(const char* err_msg) {
strncpy(err_ptr, err_msg, GIF_MAX_ERROR_SIZE - 1);
longjmp(jmpbuf, 1);
}
uint8_t* CGifDecompressor::AskBufForPal(int32_t pal_size) {
return context_ptr->parent_ptr->GetDelegate()->GifAskLocalPaletteBuf(
gif_get_frame_num(this), pal_size);
}
void CGifDecompressor::RecordCurrentPosition(uint32_t* cur_pos_ptr) {
context_ptr->parent_ptr->GetDelegate()->GifRecordCurrentPosition(
*cur_pos_ptr);
}
void CGifDecompressor::ReadScanline(int32_t row_num, uint8_t* row_buf) {
context_ptr->parent_ptr->GetDelegate()->GifReadScanline(row_num, row_buf);
}
bool CGifDecompressor::GetRecordPosition(uint32_t cur_pos,
int32_t left,
int32_t top,
int32_t width,
int32_t height,
int32_t pal_num,
void* pal_ptr,
int32_t delay_time,
bool user_input,
int32_t trans_index,
int32_t disposal_method,
bool interlace) {
return context_ptr->parent_ptr->GetDelegate()->GifInputRecordPositionBuf(
cur_pos, FX_RECT(left, top, left + width, top + height), pal_num, pal_ptr,
delay_time, user_input, trans_index, disposal_method, interlace);
}
|
