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61362d65fc
This lets bmpbklk_utility generate BMPBLOCKs with EFIv1-compressed bitmaps. It also adds the ability to display or unpack BMPBLOCK blobs. The compression/decompression routines come from the tianocore EDK on sourceforge and are written in C, so now there's a mix of C and C++, but it works just fine. BUG=chromium-os:11491 TEST=manual cd src/platform/vboot_reference make make runbmptests Review URL: http://codereview.chromium.org/6508006 Change-Id: Ie05e1a3fd42f4694447c8c440b2432af4ac0f601
120 lines
3.5 KiB
C++
120 lines
3.5 KiB
C++
// Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef VBOOT_REFERENCE_BMPBLK_UTILITY_H_
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#define VBOOT_REFERENCE_BMPBLK_UTILITY_H_
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#include "bmpblk_header.h"
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#include <yaml.h>
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#include <map>
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#include <string>
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#include <vector>
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using std::map;
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using std::string;
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using std::vector;
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namespace vboot_reference {
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/* Internal struct for contructing ImageInfo. */
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typedef struct ImageConfig {
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ImageInfo data;
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string filename;
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string raw_content;
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string compressed_content;
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uint32_t offset;
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} ImageConfig;
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/* Internal struct for contructing ScreenLayout. */
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typedef struct ScreenConfig {
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ScreenLayout data;
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string image_names[MAX_IMAGE_IN_LAYOUT];
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} ScreenConfig;
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typedef map<string, ImageConfig> StrImageConfigMap;
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typedef map<string, ScreenConfig> StrScreenConfigMap;
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/* Internal struct for contructing the whole BmpBlock. */
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typedef struct BmpBlockConfig {
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string config_filename;
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BmpBlockHeader header;
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StrImageConfigMap images_map;
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StrScreenConfigMap screens_map;
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vector<vector<string> > localizations;
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} BmpBlockConfig;
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class BmpBlockUtil {
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public:
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BmpBlockUtil();
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~BmpBlockUtil();
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/* Load all the images and related infomations according to a config file. */
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void load_from_config(const char *filename);
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/* Compress all the images using a given comression method. */
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void compress_all_images(const Compression compress);
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/* Contruct the bmpblock. */
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void pack_bmpblock();
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/* Write the bmpblock to a file */
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void write_to_bmpblock(const char *filename);
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/* What compression to use for the images */
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void force_compression(uint32_t compression);
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private:
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/* Clear all internal data. */
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void initialize();
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/* Elemental function called from load_from_config.
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* Load the config file (yaml format) and parse it. */
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void load_yaml_config(const char *filename);
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/* Elemental function called from load_from_config.
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* Load all image files into the internal variables. */
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void load_all_image_files();
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/* Elemental function called from load_from_config.
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* Contruct all ImageInfo structs. */
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void fill_all_image_infos();
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/* Elemental function called from load_from_config.
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* Contruct the BmpBlockHeader struct. */
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void fill_bmpblock_header();
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/* Helper functions for parsing a YAML config file. */
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void expect_event(yaml_parser_t *parser, const yaml_event_type_e type);
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void parse_config(yaml_parser_t *parser);
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void parse_first_layer(yaml_parser_t *parser);
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void parse_bmpblock(yaml_parser_t *parser);
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void parse_images(yaml_parser_t *parser);
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void parse_layout(yaml_parser_t *parser, ScreenConfig &screen);
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void parse_screens(yaml_parser_t *parser);
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void parse_localizations(yaml_parser_t *parser);
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/* Useful functions */
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const string read_image_file(const char *filename);
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ImageFormat get_image_format(const string content);
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uint32_t get_bmp_image_width(const string content);
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uint32_t get_bmp_image_height(const string content);
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/* Internal variable for storing the config of BmpBlock. */
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BmpBlockConfig config_;
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/* Internal variable for storing the content of BmpBlock. */
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string bmpblock_;
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/* Internal variables to determine whether or not to specify compression */
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bool set_compression_; // true if we force it
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uint32_t compression_; // what we force it to
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};
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} // namespace vboot_reference
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#endif // VBOOT_REFERENCE_BMPBLK_UTILITY_H_
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