diff options
Diffstat (limited to 'core/fxcodec/lbmp/fx_bmp.h')
| -rw-r--r-- | core/fxcodec/lbmp/fx_bmp.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/core/fxcodec/lbmp/fx_bmp.h b/core/fxcodec/lbmp/fx_bmp.h new file mode 100644 index 0000000000..2ef0c0a8b0 --- /dev/null +++ b/core/fxcodec/lbmp/fx_bmp.h @@ -0,0 +1,155 @@ +// 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/include/fxcrt/fx_basic.h" + +#define BMP_WIDTHBYTES(width, bitCount) ((width * bitCount) + 31) / 32 * 4 +#define BMP_PAL_ENCODE(a, r, g, b) \ + (((FX_DWORD)(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 +#pragma pack(1) +typedef struct tagBmpFileHeader { + FX_WORD bfType; + FX_DWORD bfSize; + FX_WORD bfReserved1; + FX_WORD bfReserved2; + FX_DWORD bfOffBits; +} BmpFileHeader, *BmpFileHeaderPtr; +typedef struct tagBmpCoreHeader { + FX_DWORD bcSize; + FX_WORD bcWidth; + FX_WORD bcHeight; + FX_WORD bcPlanes; + FX_WORD bcBitCount; +} BmpCoreHeader, *BmpCoreHeaderPtr; +typedef struct tagBmpInfoHeader { + FX_DWORD biSize; + int32_t biWidth; + int32_t biHeight; + FX_WORD biPlanes; + FX_WORD biBitCount; + FX_DWORD biCompression; + FX_DWORD biSizeImage; + int32_t biXPelsPerMeter; + int32_t biYPelsPerMeter; + FX_DWORD biClrUsed; + FX_DWORD 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; + FX_DWORD compress_flag; + int32_t components; + int32_t src_row_bytes; + int32_t out_row_bytes; + uint8_t* out_row_buffer; + FX_WORD bitCounts; + FX_DWORD color_used; + FX_BOOL imgTB_flag; + int32_t pal_num; + int32_t pal_type; + FX_DWORD* pal_ptr; + FX_DWORD data_size; + FX_DWORD img_data_offset; + FX_DWORD img_ifh_size; + int32_t row_num; + int32_t col_num; + int32_t dpi_x; + int32_t dpi_y; + FX_DWORD mask_red; + FX_DWORD mask_green; + FX_DWORD mask_blue; + + FX_BOOL (*bmp_get_data_position_fn)(bmp_decompress_struct_p bmp_ptr, + FX_DWORD 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; + FX_DWORD avail_in; + FX_DWORD 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, + FX_DWORD 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, + FX_DWORD src_size); +FX_DWORD bmp_get_avail_input(bmp_decompress_struct_p bmp_ptr, + uint8_t** avial_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; + FX_DWORD src_pitch; + FX_DWORD src_row; + uint8_t src_bpp; + FX_DWORD src_width; + FX_BOOL src_free; + FX_DWORD* pal_ptr; + FX_WORD pal_num; + uint8_t bit_type; +}; + +bmp_compress_struct_p bmp_create_compress(); +void bmp_destroy_compress(bmp_compress_struct_p bmp_ptr); +FX_BOOL bmp_encode_image(bmp_compress_struct_p bmp_ptr, + uint8_t*& dst_buf, + FX_DWORD& dst_size); + +FX_WORD GetWord_LSBFirst(uint8_t* p); +void SetWord_LSBFirst(uint8_t* p, FX_WORD v); + +#endif // CORE_FXCODEC_LBMP_FX_BMP_H_ |