| // 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/include/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 |
| #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; |
| FX_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; |
| |
| FX_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; |
| FX_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); |
| FX_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_ |