WIP libpng image decoding
Also added Doxyfile for generation of doxygen-based documentation.
This commit is contained in:
parent
06f60186a6
commit
7a8ad131ed
7 changed files with 551 additions and 0 deletions
1
.gitignore
vendored
1
.gitignore
vendored
|
|
@ -1,3 +1,4 @@
|
|||
build*/
|
||||
compile_commands.json
|
||||
.cache/
|
||||
doxygen_out/
|
||||
|
|
|
|||
2
.lvimrc
2
.lvimrc
|
|
@ -1,2 +1,4 @@
|
|||
set expandtab
|
||||
set tabstop=2
|
||||
set shiftwidth=2
|
||||
set textwidth=80
|
||||
|
|
|
|||
|
|
@ -3,6 +3,7 @@ project(EN605.617.81.FA21_StephenSeo_DitheringProject)
|
|||
|
||||
set(Project_SOURCES
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/src/main.cc
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/src/image.cc
|
||||
)
|
||||
|
||||
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wpedantic")
|
||||
|
|
@ -16,3 +17,12 @@ endif()
|
|||
|
||||
add_executable(DitheringProject
|
||||
${Project_SOURCES})
|
||||
|
||||
find_package(PNG REQUIRED)
|
||||
|
||||
target_include_directories(DitheringProject PUBLIC
|
||||
${PNG_INCLUDE_DIRS}
|
||||
)
|
||||
target_link_libraries(DitheringProject PUBLIC
|
||||
${PNG_LIBRARIES}
|
||||
)
|
||||
|
|
|
|||
332
Doxyfile
Normal file
332
Doxyfile
Normal file
|
|
@ -0,0 +1,332 @@
|
|||
DOXYFILE_ENCODING = UTF-8
|
||||
PROJECT_NAME = "EN605.617.81.FA21_StephenSeo_DitheringProject"
|
||||
PROJECT_NUMBER =
|
||||
PROJECT_BRIEF = "Dithers an image using OpenCL"
|
||||
PROJECT_LOGO =
|
||||
OUTPUT_DIRECTORY = "doxygen_out"
|
||||
CREATE_SUBDIRS = NO
|
||||
ALLOW_UNICODE_NAMES = NO
|
||||
OUTPUT_LANGUAGE = English
|
||||
BRIEF_MEMBER_DESC = YES
|
||||
REPEAT_BRIEF = YES
|
||||
ABBREVIATE_BRIEF = "The $name class" \
|
||||
"The $name widget" \
|
||||
"The $name file" \
|
||||
is \
|
||||
provides \
|
||||
specifies \
|
||||
contains \
|
||||
represents \
|
||||
a \
|
||||
an \
|
||||
the
|
||||
ALWAYS_DETAILED_SEC = NO
|
||||
INLINE_INHERITED_MEMB = NO
|
||||
FULL_PATH_NAMES = YES
|
||||
STRIP_FROM_PATH =
|
||||
STRIP_FROM_INC_PATH =
|
||||
SHORT_NAMES = NO
|
||||
JAVADOC_AUTOBRIEF = NO
|
||||
JAVADOC_BANNER = NO
|
||||
QT_AUTOBRIEF = NO
|
||||
MULTILINE_CPP_IS_BRIEF = NO
|
||||
PYTHON_DOCSTRING = YES
|
||||
INHERIT_DOCS = YES
|
||||
SEPARATE_MEMBER_PAGES = NO
|
||||
TAB_SIZE = 2
|
||||
ALIASES =
|
||||
OPTIMIZE_OUTPUT_FOR_C = NO
|
||||
OPTIMIZE_OUTPUT_JAVA = NO
|
||||
OPTIMIZE_FOR_FORTRAN = NO
|
||||
OPTIMIZE_OUTPUT_VHDL = NO
|
||||
OPTIMIZE_OUTPUT_SLICE = NO
|
||||
EXTENSION_MAPPING =
|
||||
MARKDOWN_SUPPORT = YES
|
||||
TOC_INCLUDE_HEADINGS = 5
|
||||
AUTOLINK_SUPPORT = YES
|
||||
BUILTIN_STL_SUPPORT = YES
|
||||
CPP_CLI_SUPPORT = NO
|
||||
SIP_SUPPORT = NO
|
||||
IDL_PROPERTY_SUPPORT = YES
|
||||
DISTRIBUTE_GROUP_DOC = NO
|
||||
GROUP_NESTED_COMPOUNDS = NO
|
||||
SUBGROUPING = YES
|
||||
INLINE_GROUPED_CLASSES = NO
|
||||
INLINE_SIMPLE_STRUCTS = NO
|
||||
TYPEDEF_HIDES_STRUCT = NO
|
||||
LOOKUP_CACHE_SIZE = 0
|
||||
NUM_PROC_THREADS = 1
|
||||
EXTRACT_ALL = NO
|
||||
EXTRACT_PRIVATE = NO
|
||||
EXTRACT_PRIV_VIRTUAL = NO
|
||||
EXTRACT_PACKAGE = NO
|
||||
EXTRACT_STATIC = NO
|
||||
EXTRACT_LOCAL_CLASSES = YES
|
||||
EXTRACT_LOCAL_METHODS = NO
|
||||
EXTRACT_ANON_NSPACES = NO
|
||||
RESOLVE_UNNAMED_PARAMS = YES
|
||||
HIDE_UNDOC_MEMBERS = NO
|
||||
HIDE_UNDOC_CLASSES = NO
|
||||
HIDE_FRIEND_COMPOUNDS = NO
|
||||
HIDE_IN_BODY_DOCS = NO
|
||||
INTERNAL_DOCS = NO
|
||||
CASE_SENSE_NAMES = YES
|
||||
HIDE_SCOPE_NAMES = NO
|
||||
HIDE_COMPOUND_REFERENCE= NO
|
||||
SHOW_HEADERFILE = YES
|
||||
SHOW_INCLUDE_FILES = YES
|
||||
SHOW_GROUPED_MEMB_INC = NO
|
||||
FORCE_LOCAL_INCLUDES = NO
|
||||
INLINE_INFO = YES
|
||||
SORT_MEMBER_DOCS = YES
|
||||
SORT_BRIEF_DOCS = NO
|
||||
SORT_MEMBERS_CTORS_1ST = NO
|
||||
SORT_GROUP_NAMES = NO
|
||||
SORT_BY_SCOPE_NAME = NO
|
||||
STRICT_PROTO_MATCHING = NO
|
||||
GENERATE_TODOLIST = YES
|
||||
GENERATE_TESTLIST = YES
|
||||
GENERATE_BUGLIST = YES
|
||||
GENERATE_DEPRECATEDLIST= YES
|
||||
ENABLED_SECTIONS =
|
||||
MAX_INITIALIZER_LINES = 30
|
||||
SHOW_USED_FILES = YES
|
||||
SHOW_FILES = YES
|
||||
SHOW_NAMESPACES = YES
|
||||
FILE_VERSION_FILTER =
|
||||
LAYOUT_FILE =
|
||||
CITE_BIB_FILES =
|
||||
QUIET = NO
|
||||
WARNINGS = YES
|
||||
WARN_IF_UNDOCUMENTED = YES
|
||||
WARN_IF_DOC_ERROR = YES
|
||||
WARN_IF_INCOMPLETE_DOC = YES
|
||||
WARN_NO_PARAMDOC = NO
|
||||
WARN_AS_ERROR = NO
|
||||
WARN_FORMAT = "$file:$line: $text"
|
||||
WARN_LOGFILE =
|
||||
INPUT = doxygen src
|
||||
INPUT_ENCODING = UTF-8
|
||||
FILE_PATTERNS = *.c \
|
||||
*.cc \
|
||||
*.cxx \
|
||||
*.cpp \
|
||||
*.c++ \
|
||||
*.java \
|
||||
*.ii \
|
||||
*.ixx \
|
||||
*.ipp \
|
||||
*.i++ \
|
||||
*.inl \
|
||||
*.idl \
|
||||
*.ddl \
|
||||
*.odl \
|
||||
*.h \
|
||||
*.hh \
|
||||
*.hxx \
|
||||
*.hpp \
|
||||
*.h++ \
|
||||
*.l \
|
||||
*.cs \
|
||||
*.d \
|
||||
*.php \
|
||||
*.php4 \
|
||||
*.php5 \
|
||||
*.phtml \
|
||||
*.inc \
|
||||
*.m \
|
||||
*.markdown \
|
||||
*.md \
|
||||
*.mm \
|
||||
*.dox \
|
||||
*.py \
|
||||
*.pyw \
|
||||
*.f90 \
|
||||
*.f95 \
|
||||
*.f03 \
|
||||
*.f08 \
|
||||
*.f18 \
|
||||
*.f \
|
||||
*.for \
|
||||
*.vhd \
|
||||
*.vhdl \
|
||||
*.ucf \
|
||||
*.qsf \
|
||||
*.ice
|
||||
RECURSIVE = NO
|
||||
EXCLUDE =
|
||||
EXCLUDE_SYMLINKS = NO
|
||||
EXCLUDE_PATTERNS =
|
||||
EXCLUDE_SYMBOLS =
|
||||
EXAMPLE_PATH =
|
||||
EXAMPLE_PATTERNS = *
|
||||
EXAMPLE_RECURSIVE = NO
|
||||
IMAGE_PATH =
|
||||
INPUT_FILTER =
|
||||
FILTER_PATTERNS =
|
||||
FILTER_SOURCE_FILES = NO
|
||||
FILTER_SOURCE_PATTERNS =
|
||||
USE_MDFILE_AS_MAINPAGE = doxygen/mainpage.md
|
||||
SOURCE_BROWSER = NO
|
||||
INLINE_SOURCES = NO
|
||||
STRIP_CODE_COMMENTS = YES
|
||||
REFERENCED_BY_RELATION = NO
|
||||
REFERENCES_RELATION = NO
|
||||
REFERENCES_LINK_SOURCE = YES
|
||||
SOURCE_TOOLTIPS = YES
|
||||
USE_HTAGS = NO
|
||||
VERBATIM_HEADERS = YES
|
||||
ALPHABETICAL_INDEX = YES
|
||||
IGNORE_PREFIX =
|
||||
GENERATE_HTML = YES
|
||||
HTML_OUTPUT = html
|
||||
HTML_FILE_EXTENSION = .html
|
||||
HTML_HEADER =
|
||||
HTML_FOOTER =
|
||||
HTML_STYLESHEET =
|
||||
HTML_EXTRA_STYLESHEET =
|
||||
HTML_EXTRA_FILES =
|
||||
HTML_COLORSTYLE_HUE = 220
|
||||
HTML_COLORSTYLE_SAT = 100
|
||||
HTML_COLORSTYLE_GAMMA = 80
|
||||
HTML_TIMESTAMP = NO
|
||||
HTML_DYNAMIC_MENUS = YES
|
||||
HTML_DYNAMIC_SECTIONS = NO
|
||||
HTML_INDEX_NUM_ENTRIES = 100
|
||||
GENERATE_DOCSET = NO
|
||||
DOCSET_FEEDNAME = "Doxygen generated docs"
|
||||
DOCSET_BUNDLE_ID = org.doxygen.Project
|
||||
DOCSET_PUBLISHER_ID = org.doxygen.Publisher
|
||||
DOCSET_PUBLISHER_NAME = Publisher
|
||||
GENERATE_HTMLHELP = NO
|
||||
CHM_FILE =
|
||||
HHC_LOCATION =
|
||||
GENERATE_CHI = NO
|
||||
CHM_INDEX_ENCODING =
|
||||
BINARY_TOC = NO
|
||||
TOC_EXPAND = NO
|
||||
GENERATE_QHP = NO
|
||||
QCH_FILE =
|
||||
QHP_NAMESPACE = org.doxygen.Project
|
||||
QHP_VIRTUAL_FOLDER = doc
|
||||
QHP_CUST_FILTER_NAME =
|
||||
QHP_CUST_FILTER_ATTRS =
|
||||
QHP_SECT_FILTER_ATTRS =
|
||||
QHG_LOCATION =
|
||||
GENERATE_ECLIPSEHELP = NO
|
||||
ECLIPSE_DOC_ID = org.doxygen.Project
|
||||
DISABLE_INDEX = NO
|
||||
GENERATE_TREEVIEW = NO
|
||||
FULL_SIDEBAR = NO
|
||||
ENUM_VALUES_PER_LINE = 4
|
||||
TREEVIEW_WIDTH = 250
|
||||
EXT_LINKS_IN_WINDOW = NO
|
||||
HTML_FORMULA_FORMAT = png
|
||||
FORMULA_FONTSIZE = 10
|
||||
FORMULA_TRANSPARENT = YES
|
||||
FORMULA_MACROFILE =
|
||||
USE_MATHJAX = NO
|
||||
MATHJAX_VERSION = MathJax_2
|
||||
MATHJAX_FORMAT = HTML-CSS
|
||||
MATHJAX_RELPATH =
|
||||
MATHJAX_EXTENSIONS =
|
||||
MATHJAX_CODEFILE =
|
||||
SEARCHENGINE = YES
|
||||
SERVER_BASED_SEARCH = NO
|
||||
EXTERNAL_SEARCH = NO
|
||||
SEARCHENGINE_URL =
|
||||
SEARCHDATA_FILE = searchdata.xml
|
||||
EXTERNAL_SEARCH_ID =
|
||||
EXTRA_SEARCH_MAPPINGS =
|
||||
GENERATE_LATEX = YES
|
||||
LATEX_OUTPUT = latex
|
||||
LATEX_CMD_NAME =
|
||||
MAKEINDEX_CMD_NAME = makeindex
|
||||
LATEX_MAKEINDEX_CMD = makeindex
|
||||
COMPACT_LATEX = NO
|
||||
PAPER_TYPE = a4
|
||||
EXTRA_PACKAGES =
|
||||
LATEX_HEADER =
|
||||
LATEX_FOOTER =
|
||||
LATEX_EXTRA_STYLESHEET =
|
||||
LATEX_EXTRA_FILES =
|
||||
PDF_HYPERLINKS = YES
|
||||
USE_PDFLATEX = YES
|
||||
LATEX_BATCHMODE = NO
|
||||
LATEX_HIDE_INDICES = NO
|
||||
LATEX_BIB_STYLE = plain
|
||||
LATEX_TIMESTAMP = NO
|
||||
LATEX_EMOJI_DIRECTORY =
|
||||
GENERATE_RTF = NO
|
||||
RTF_OUTPUT = rtf
|
||||
COMPACT_RTF = NO
|
||||
RTF_HYPERLINKS = NO
|
||||
RTF_STYLESHEET_FILE =
|
||||
RTF_EXTENSIONS_FILE =
|
||||
GENERATE_MAN = NO
|
||||
MAN_OUTPUT = man
|
||||
MAN_EXTENSION = .3
|
||||
MAN_SUBDIR =
|
||||
MAN_LINKS = NO
|
||||
GENERATE_XML = NO
|
||||
XML_OUTPUT = xml
|
||||
XML_PROGRAMLISTING = YES
|
||||
XML_NS_MEMB_FILE_SCOPE = NO
|
||||
GENERATE_DOCBOOK = NO
|
||||
DOCBOOK_OUTPUT = docbook
|
||||
GENERATE_AUTOGEN_DEF = NO
|
||||
GENERATE_PERLMOD = NO
|
||||
PERLMOD_LATEX = NO
|
||||
PERLMOD_PRETTY = YES
|
||||
PERLMOD_MAKEVAR_PREFIX =
|
||||
ENABLE_PREPROCESSING = YES
|
||||
MACRO_EXPANSION = NO
|
||||
EXPAND_ONLY_PREDEF = NO
|
||||
SEARCH_INCLUDES = YES
|
||||
INCLUDE_PATH =
|
||||
INCLUDE_FILE_PATTERNS =
|
||||
PREDEFINED =
|
||||
EXPAND_AS_DEFINED =
|
||||
SKIP_FUNCTION_MACROS = YES
|
||||
TAGFILES =
|
||||
GENERATE_TAGFILE =
|
||||
ALLEXTERNALS = NO
|
||||
EXTERNAL_GROUPS = YES
|
||||
EXTERNAL_PAGES = YES
|
||||
CLASS_DIAGRAMS = YES
|
||||
DIA_PATH =
|
||||
HIDE_UNDOC_RELATIONS = YES
|
||||
HAVE_DOT = NO
|
||||
DOT_NUM_THREADS = 0
|
||||
DOT_FONTNAME = Helvetica
|
||||
DOT_FONTSIZE = 10
|
||||
DOT_FONTPATH =
|
||||
CLASS_GRAPH = YES
|
||||
COLLABORATION_GRAPH = YES
|
||||
GROUP_GRAPHS = YES
|
||||
UML_LOOK = NO
|
||||
UML_LIMIT_NUM_FIELDS = 10
|
||||
DOT_UML_DETAILS = NO
|
||||
DOT_WRAP_THRESHOLD = 17
|
||||
TEMPLATE_RELATIONS = NO
|
||||
INCLUDE_GRAPH = YES
|
||||
INCLUDED_BY_GRAPH = YES
|
||||
CALL_GRAPH = NO
|
||||
CALLER_GRAPH = NO
|
||||
GRAPHICAL_HIERARCHY = YES
|
||||
DIRECTORY_GRAPH = YES
|
||||
DOT_IMAGE_FORMAT = png
|
||||
INTERACTIVE_SVG = NO
|
||||
DOT_PATH =
|
||||
DOTFILE_DIRS =
|
||||
MSCFILE_DIRS =
|
||||
DIAFILE_DIRS =
|
||||
PLANTUML_JAR_PATH =
|
||||
PLANTUML_CFG_FILE =
|
||||
PLANTUML_INCLUDE_PATH =
|
||||
DOT_GRAPH_MAX_NODES = 50
|
||||
MAX_DOT_GRAPH_DEPTH = 0
|
||||
DOT_TRANSPARENT = NO
|
||||
DOT_MULTI_TARGETS = NO
|
||||
GENERATE_LEGEND = YES
|
||||
DOT_CLEANUP = YES
|
||||
3
doxygen/mainpage.md
Normal file
3
doxygen/mainpage.md
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
# Dithering Project
|
||||
|
||||
<a href="annotated.html">Classes</a>
|
||||
131
src/image.cc
Normal file
131
src/image.cc
Normal file
|
|
@ -0,0 +1,131 @@
|
|||
#include "image.h"
|
||||
|
||||
#include <array>
|
||||
#include <cstdio>
|
||||
#include <iostream>
|
||||
|
||||
#include <png.h>
|
||||
|
||||
Image::Image() : data_(), width_(0), height_(0), is_grayscale_(true) {}
|
||||
|
||||
Image::Image(const char *filename) : Image(std::string(filename)) {}
|
||||
|
||||
Image::Image(const std::string &filename)
|
||||
: data_(), width_(0), height_(0), is_grayscale_(true) {
|
||||
if (filename.compare(filename.size() - 4, filename.size(), ".png") == 0) {
|
||||
// filename expected to be .png
|
||||
DecodePNG(filename);
|
||||
} else if (filename.compare(filename.size() - 4, filename.size(), ".pgm") ==
|
||||
0) {
|
||||
// filename expected to be .pgm
|
||||
DecodePGM(filename);
|
||||
} else if (filename.compare(filename.size() - 4, filename.size(), ".ppm") ==
|
||||
0) {
|
||||
// filename expected to be .ppm
|
||||
DecodePPM(filename);
|
||||
} else {
|
||||
// unknown filename extension
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
bool Image::IsValid() const {
|
||||
return !data_.empty() && width_ > 0 && height_ > 0;
|
||||
}
|
||||
|
||||
uint8_t *Image::GetData() { return data_.data(); }
|
||||
|
||||
const uint8_t *Image::GetData() const { return data_.data(); }
|
||||
|
||||
unsigned int Image::GetSize() const { return data_.size(); }
|
||||
|
||||
unsigned int Image::GetWidth() const { return width_; }
|
||||
|
||||
unsigned int Image::GetHeight() const { return height_; }
|
||||
|
||||
bool Image::IsGrayscale() const { return is_grayscale_; }
|
||||
|
||||
void Image::DecodePNG(const std::string &filename) {
|
||||
FILE *file = std::fopen(filename.c_str(), "rb");
|
||||
|
||||
// Check header of file to check if it is actually a png file.
|
||||
{
|
||||
std::array<unsigned char, 8> buf;
|
||||
if (std::fread(buf.data(), 1, 8, file) != 8) {
|
||||
std::cout << "ERROR: File \"" << filename << "\" is smaller than 8 bytes"
|
||||
<< std::endl;
|
||||
std::fclose(file);
|
||||
return;
|
||||
} else if (!png_sig_cmp(reinterpret_cast<png_const_bytep>(buf.data()), 0,
|
||||
8)) {
|
||||
// not png file, do nothing
|
||||
std::fclose(file);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
// seek to head of file
|
||||
std::rewind(file);
|
||||
|
||||
// init required structs for png decoding
|
||||
png_structp png_ptr =
|
||||
png_create_read_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
|
||||
if (!png_ptr) {
|
||||
std::cout << "ERROR: Failed to initialize libpng (png_ptr) for decoding "
|
||||
"PNG file \""
|
||||
<< filename << '"' << std::endl;
|
||||
std::fclose(file);
|
||||
return;
|
||||
}
|
||||
|
||||
png_infop png_info_ptr = png_create_info_struct(png_ptr);
|
||||
if (!png_info_ptr) {
|
||||
std::cout << "ERROR: Failed to initialize libpng (png_infop) for decoding "
|
||||
"PNG file \""
|
||||
<< filename << '"' << std::endl;
|
||||
png_destroy_read_struct(&png_ptr, nullptr, nullptr);
|
||||
std::fclose(file);
|
||||
return;
|
||||
}
|
||||
|
||||
png_infop png_end_info_ptr = png_create_info_struct(png_ptr);
|
||||
if (!png_end_info_ptr) {
|
||||
std::cout << "ERROR: Failed to initialize libpng (end png_infop) for "
|
||||
"decoding PNG file \""
|
||||
<< filename << '"' << std::endl;
|
||||
png_destroy_read_struct(&png_ptr, &png_info_ptr, nullptr);
|
||||
std::fclose(file);
|
||||
return;
|
||||
}
|
||||
|
||||
// required to handle libpng errors
|
||||
if (setjmp(png_jmpbuf(png_ptr))) {
|
||||
png_destroy_read_struct(&png_ptr, &png_info_ptr, &png_end_info_ptr);
|
||||
std::fclose(file);
|
||||
return;
|
||||
}
|
||||
|
||||
// pass the FILE pointer to libpng
|
||||
png_init_io(png_ptr, file);
|
||||
|
||||
// TODO BEGIN
|
||||
//// have libpng process the png data
|
||||
// png_read_png(png_ptr, png_info_ptr, PNG_TRANSFORM_IDENTITY, nullptr);
|
||||
|
||||
//// get rows of pixels from libpng
|
||||
// png_bytep row_pointer = nullptr;
|
||||
// png_read_row(png_ptr, row_pointer, nullptr);
|
||||
|
||||
// TODO END
|
||||
|
||||
// cleanup
|
||||
png_destroy_read_struct(&png_ptr, &png_info_ptr, &png_end_info_ptr);
|
||||
}
|
||||
|
||||
void Image::DecodePGM(const std::string &filename) {
|
||||
// TODO
|
||||
}
|
||||
|
||||
void Image::DecodePPM(const std::string &filename) {
|
||||
// TODO
|
||||
}
|
||||
72
src/image.h
Normal file
72
src/image.h
Normal file
|
|
@ -0,0 +1,72 @@
|
|||
#ifndef IGPUP_DITHERING_PROJECT_IMAGE_H_
|
||||
#define IGPUP_DITHERING_PROJECT_IMAGE_H_
|
||||
|
||||
#include <cstdint>
|
||||
#include <string>
|
||||
#include <vector>
|
||||
|
||||
class Image {
|
||||
public:
|
||||
Image();
|
||||
|
||||
/*!
|
||||
* \brief Decodes the given file's data and stores the pixels internally.
|
||||
*
|
||||
* Use IsValid() to check if the file was successfully decoded.
|
||||
*
|
||||
* Image supports decoding .png, .pgm, and .ppm . Decoding only checks the
|
||||
* filename suffix as a guide on which file-type to expect.
|
||||
*/
|
||||
Image(const char *filename);
|
||||
|
||||
/// Same constructor as Image(const char *filename)
|
||||
Image(const std::string &filename);
|
||||
|
||||
// allow copy
|
||||
Image(const Image &other) = default;
|
||||
Image &operator=(const Image &other) = default;
|
||||
|
||||
// allow move
|
||||
Image(Image &&other) = default;
|
||||
Image &operator=(Image &&other) = default;
|
||||
|
||||
/*!
|
||||
* \brief Is true if the Image instance is valid.
|
||||
*
|
||||
* This will return false on an Image instance that failed to decode an input
|
||||
* image when constructed.
|
||||
*/
|
||||
bool IsValid() const;
|
||||
|
||||
/// Returns a raw pointer to the image's data.
|
||||
uint8_t *GetData();
|
||||
/// Returns a const raw pointer to the image's data.
|
||||
const uint8_t *GetData() const;
|
||||
|
||||
/*!
|
||||
* \brief Returns the number of bytes in the image.
|
||||
*
|
||||
* For grayscale images, each pixel is one byte.
|
||||
* For colored images, each pixel is 4 bytes: R, G, B, and Alpha.
|
||||
*/
|
||||
unsigned int GetSize() const;
|
||||
/// Returns the width of the image.
|
||||
unsigned int GetWidth() const;
|
||||
/// Returns the height of the image.
|
||||
unsigned int GetHeight() const;
|
||||
|
||||
/// Returns true if the image is grayscale. If false, then the image is RGBA.
|
||||
bool IsGrayscale() const;
|
||||
|
||||
private:
|
||||
std::vector<uint8_t> data_;
|
||||
unsigned int width_;
|
||||
unsigned int height_;
|
||||
bool is_grayscale_;
|
||||
|
||||
void DecodePNG(const std::string &filename);
|
||||
void DecodePGM(const std::string &filename);
|
||||
void DecodePPM(const std::string &filename);
|
||||
};
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue