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/*
* Copyright (C) 2026 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2026 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-runtime-lib
* Created on: 25 янв. 2026 г.
*
* lsp-runtime-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-runtime-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-runtime-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_MM_BITMAP_H_
#define LSP_PLUG_IN_MM_BITMAP_H_
#include <lsp-plug.in/runtime/version.h>
#include <lsp-plug.in/common/status.h>
#include <lsp-plug.in/common/types.h>
#include <lsp-plug.in/io/Path.h>
#include <lsp-plug.in/io/IInStream.h>
#include <lsp-plug.in/mm/pixel.h>
#include <lsp-plug.in/mm/IColorMap.h>
#include <lsp-plug.in/runtime/LSPString.h>
namespace lsp
{
namespace mm
{
/**
* Bitmap class, simple raster bitmap storage
*/
class Bitmap
{
private:
uint8_t *pData;
size_t nWidth;
size_t nHeight;
size_t nStride;
pixel_format_t enFormat;
private:
status_t do_load(io::IInStream *is, pixel_format_t format, IColorMap *map);
status_t load_xpm(io::IInStream *is, pixel_format_t format, IColorMap *map);
static inline size_t calc_bytes_per_row(pixel_format_t format, size_t cols) noexcept;
static inline size_t calc_stride(pixel_format_t format, size_t cols) noexcept;
public:
Bitmap() noexcept;
Bitmap(const Bitmap &);
Bitmap(const Bitmap *);
Bitmap(Bitmap && src) noexcept;
~Bitmap();
Bitmap & operator = (const Bitmap & src);
Bitmap & operator = (const Bitmap * src);
Bitmap & operator = (Bitmap && src) noexcept;
void swap(Bitmap & src) noexcept;
void swap(Bitmap * src) noexcept;
public:
/**
* Get pixel format of the bitmap
* @return pixel format
*/
inline pixel_format_t format() const noexcept { return enFormat; }
/**
* Get number of rows
* @return number of rows
*/
inline size_t rows() const noexcept { return nHeight; }
/**
* Get bitmap width
* @return bitmap width in pixels
*/
inline size_t width() const noexcept { return nWidth; }
/**
* Get number of columns
* @return number of columns
*/
inline size_t columns() const noexcept { return nWidth; }
/**
* Get bitmap height
* @return bitmap height in pixels
*/
inline size_t height() const noexcept { return nHeight; }
/**
* Get number of bytes per each row
* @return number of bytes per each row
*/
inline size_t stride() const noexcept { return nStride; }
/**
* Get number of bytes per each row
* @return number of bytes per each row
*/
inline size_t bytes_per_row() const noexcept { return nStride; }
/**
* Get row of the bitmap
* @param index number of row
* @return pointer to row or NULL
*/
inline uint8_t *row(size_t index) noexcept { return ((pData != NULL) && (index < nHeight)) ? &pData[nStride * index] : NULL; }
/**
* Get row of the bitmap
* @param index number of row
* @return pointer to row or NULL
*/
inline const uint8_t *row(size_t index) const noexcept { return ((pData != NULL) && (index < nHeight)) ? &pData[nStride * index] : NULL; }
/**
* Get the full bitmap data
* @return full bitmap data
*/
inline uint8_t *data() noexcept { return pData; }
/**
* Get the full bitmap data
* @return full bitmap data
*/
inline const uint8_t *data() const noexcept { return pData; }
/**
* Check that bitmap is empty
* @return true if bitmap is empty
*/
inline bool is_empty() const noexcept { return pData == NULL; }
public:
/**
* Initialize bitmap
* @param format pixel format of bitmap
* @param width image width
* @param height image height
* @return status of operation
*/
status_t init(pixel_format_t format, size_t width, size_t height);
/**
* Set bitmap data
* @param src source bitmap
* @return status of operation
*/
status_t set(const Bitmap & src);
/**
* Set bitmap data
* @param src source bitmap
* @return status of operation
*/
status_t set(const Bitmap * src);
/**
* Reset bitmap content
*/
void reset();
/**
* Resize bitmap. The stored image does not scale, it becomes cropped if new size is smaller.
*
* @param width image width
* @param height image height
* @return status of operation
*/
status_t resize(size_t width, size_t height);
/**
* Convert bitmap to desired pixel format
* @param format desired pixel format
* @return status of operation
*/
status_t convert(pixel_format_t format);
/**
* Convert bitmap to desired pixel format and store to new bitmap
* @param dst destination bitmap to store result
* @param format desired pixel format
* @return status of operation
*/
status_t convert_to(Bitmap & dst, pixel_format_t format) const;
/**
* Convert bitmap to desired pixel format and store to new bitmap
* @param dst destination bitmap to store result
* @param format desired pixel format
* @return status of operation
*/
status_t convert_to(Bitmap *dst, pixel_format_t format) const;
/**
* Convert source bitmap to desired pixel format and store to this bitmap
* @param src source bitmap
* @param format desired pixel format
* @return status of operation
*/
status_t convert_from(const Bitmap & src, pixel_format_t format);
/**
* Convert source bitmap to desired pixel format and store to this bitmap
* @param src source bitmap
* @param format desired pixel format
* @return status of operation
*/
status_t convert_from(const Bitmap * src, pixel_format_t format);
/**
* Load bitmap from file
* @param path path to the file
* @param format desired pixel format (optional)
* @param map color map (optional)
* @return status of operation
*/
status_t load(const char *path, pixel_format_t format = PIXFMT_DEFAULT, IColorMap *map = NULL);
/**
* Load bitmap from file
* @param path path to the file
* @param format desired pixel format (optional)
* @param map color map (optional)
* @return status of operation
*/
status_t load(const LSPString *path, pixel_format_t format = PIXFMT_DEFAULT, IColorMap *map = NULL);
/**
* Load bitmap from file
* @param path path to the file
* @param format desired pixel format (optional)
* @param map color map (optional)
* @return status of operation
*/
status_t load(const LSPString & path, pixel_format_t format = PIXFMT_DEFAULT, IColorMap *map = NULL);
/**
* Load bitmap from file
* @param path path to the file
* @param format desired pixel format (optional)
* @param map color map (optional)
* @return status of operation
*/
status_t load(const io::Path *path, pixel_format_t format = PIXFMT_DEFAULT, IColorMap *map = NULL);
/**
* Load bitmap from memory chunk
* @param data memory chunk data
* @param size size of memory chunk
* @param format desired pixel format (optional)
* @param map color map (optional)
* @return status of operation
*/
status_t load(const void *data, size_t size, pixel_format_t format = PIXFMT_DEFAULT, IColorMap *map = NULL);
/**
* Load bitmap from file
* @param path path to the file
* @param format desired pixel format (optional)
* @param map color map (optional)
* @return status of operation
*/
status_t load(const io::Path & path, pixel_format_t format = PIXFMT_DEFAULT, IColorMap *map = NULL);
/**
* Load bitmap from input stream
* @param is input stream
* @param format desired pixel format (optional)
* @param map color map (optional)
* @return status of operation
*/
status_t load(io::IInStream *is, pixel_format_t format = PIXFMT_DEFAULT, IColorMap *map = NULL);
};
} /* namespace mm */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_MM_BITMAP_H_ */
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