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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
// Copyright 2014 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
#ifndef CORE_FXCODEC_LBMP_FX_BMP_H_
#define CORE_FXCODEC_LBMP_FX_BMP_H_
#include <setjmp.h>
#include "core/fxcrt/fx_basic.h"
#define BMP_WIDTHBYTES(width, bitCount) ((width * bitCount) + 31) / 32 * 4
#define BMP_PAL_ENCODE(a, r, g, b) \
(((uint32_t)(a) << 24) | ((r) << 16) | ((g) << 8) | (b))
#define BMP_D_STATUS_HEADER 0x01
#define BMP_D_STATUS_PAL 0x02
#define BMP_D_STATUS_DATA_PRE 0x03
#define BMP_D_STATUS_DATA 0x04
#define BMP_D_STATUS_TAIL 0x00
#define BMP_SIGNATURE 0x4D42
#define BMP_PAL_NEW 0
#define BMP_PAL_OLD 1
#define RLE_MARKER 0
#define RLE_EOL 0
#define RLE_EOI 1
#define RLE_DELTA 2
#define BMP_RGB 0L
#define BMP_RLE8 1L
#define BMP_RLE4 2L
#define BMP_BITFIELDS 3L
#define BMP_BIT_555 0
#define BMP_BIT_565 1
#define BMP_MAX_ERROR_SIZE 256
// Limit width to (MAXINT32 - 31) / 32
#define BMP_MAX_WIDTH 67108863
#pragma pack(1)
typedef struct tagBmpFileHeader {
uint16_t bfType;
uint32_t bfSize;
uint16_t bfReserved1;
uint16_t bfReserved2;
uint32_t bfOffBits;
} BmpFileHeader, *BmpFileHeaderPtr;
typedef struct tagBmpCoreHeader {
uint32_t bcSize;
uint16_t bcWidth;
uint16_t bcHeight;
uint16_t bcPlanes;
uint16_t bcBitCount;
} BmpCoreHeader, *BmpCoreHeaderPtr;
typedef struct tagBmpInfoHeader {
uint32_t biSize;
int32_t biWidth;
int32_t biHeight;
uint16_t biPlanes;
uint16_t biBitCount;
uint32_t biCompression;
uint32_t biSizeImage;
int32_t biXPelsPerMeter;
int32_t biYPelsPerMeter;
uint32_t biClrUsed;
uint32_t biClrImportant;
} BmpInfoHeader, *BmpInfoHeaderPtr;
#pragma pack()
typedef struct tag_bmp_decompress_struct bmp_decompress_struct;
typedef bmp_decompress_struct* bmp_decompress_struct_p;
typedef bmp_decompress_struct_p* bmp_decompress_struct_pp;
struct tag_bmp_decompress_struct {
jmp_buf jmpbuf;
FX_CHAR* err_ptr;
void (*bmp_error_fn)(bmp_decompress_struct_p gif_ptr, const FX_CHAR* err_msg);
void* context_ptr;
BmpFileHeaderPtr bmp_header_ptr;
BmpInfoHeaderPtr bmp_infoheader_ptr;
int32_t width;
int32_t height;
uint32_t compress_flag;
int32_t components;
int32_t src_row_bytes;
int32_t out_row_bytes;
uint8_t* out_row_buffer;
uint16_t bitCounts;
uint32_t color_used;
bool imgTB_flag;
int32_t pal_num;
int32_t pal_type;
uint32_t* pal_ptr;
uint32_t data_size;
uint32_t img_data_offset;
uint32_t img_ifh_size;
int32_t row_num;
int32_t col_num;
int32_t dpi_x;
int32_t dpi_y;
uint32_t mask_red;
uint32_t mask_green;
uint32_t mask_blue;
bool (*bmp_get_data_position_fn)(bmp_decompress_struct_p bmp_ptr,
uint32_t cur_pos);
void (*bmp_get_row_fn)(bmp_decompress_struct_p bmp_ptr,
int32_t row_num,
uint8_t* row_buf);
uint8_t* next_in;
uint32_t avail_in;
uint32_t skip_size;
int32_t decode_status;
};
void bmp_error(bmp_decompress_struct_p bmp_ptr, const FX_CHAR* err_msg);
bmp_decompress_struct_p bmp_create_decompress();
void bmp_destroy_decompress(bmp_decompress_struct_pp bmp_ptr_ptr);
int32_t bmp_read_header(bmp_decompress_struct_p bmp_ptr);
int32_t bmp_decode_image(bmp_decompress_struct_p bmp_ptr);
int32_t bmp_decode_rgb(bmp_decompress_struct_p bmp_ptr);
int32_t bmp_decode_rle8(bmp_decompress_struct_p bmp_ptr);
int32_t bmp_decode_rle4(bmp_decompress_struct_p bmp_ptr);
uint8_t* bmp_read_data(bmp_decompress_struct_p bmp_ptr,
uint8_t** des_buf_pp,
uint32_t data_size);
void bmp_save_decoding_status(bmp_decompress_struct_p bmp_ptr, int32_t status);
void bmp_input_buffer(bmp_decompress_struct_p bmp_ptr,
uint8_t* src_buf,
uint32_t src_size);
uint32_t bmp_get_avail_input(bmp_decompress_struct_p bmp_ptr,
uint8_t** avail_buf_ptr);
typedef struct tag_bmp_compress_struct bmp_compress_struct;
typedef bmp_compress_struct* bmp_compress_struct_p;
typedef bmp_compress_struct_p* bmp_compress_struct_pp;
struct tag_bmp_compress_struct {
BmpFileHeader file_header;
BmpInfoHeader info_header;
uint8_t* src_buf;
uint32_t src_pitch;
uint32_t src_row;
uint8_t src_bpp;
uint32_t src_width;
bool src_free;
uint32_t* pal_ptr;
uint16_t pal_num;
uint8_t bit_type;
};
bmp_compress_struct_p bmp_create_compress();
void bmp_destroy_compress(bmp_compress_struct_p bmp_ptr);
bool bmp_encode_image(bmp_compress_struct_p bmp_ptr,
uint8_t*& dst_buf,
uint32_t& dst_size);
uint16_t GetWord_LSBFirst(uint8_t* p);
void SetWord_LSBFirst(uint8_t* p, uint16_t v);
#endif // CORE_FXCODEC_LBMP_FX_BMP_H_
|
