Descent3/bitmap/NewBitmap.h
2024-05-09 22:46:17 +01:00

61 lines
1.7 KiB
C++

/*
* Descent 3
* Copyright (C) 2024 Descent Developers
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DESCENT3_NEWBITMAP_H
#define DESCENT3_NEWBITMAP_H
#include <cstdint>
#include <memory>
enum class PixelDataFormat {
Unknown,
RGBA32
};
class NewBitmap {
private:
uint32_t _w, _h;
PixelDataFormat _format;
bool _flippedY;
std::unique_ptr<uint8_t[]> _data;
static std::unique_ptr<uint8_t[]> allocateData(uint32_t w, uint32_t h, PixelDataFormat format);
[[nodiscard]] uint32_t getStride() const;
public:
/// Creates a new bitmap of size "w * h" and the specified format. Will allocate enough memory to store it.
NewBitmap(uint32_t w, uint32_t h, PixelDataFormat format, bool flippedY = false);
void getSize(uint32_t &w, uint32_t &h) const {
w = _w;
h = _h;
}
/// @returns raw pointer to image data
[[nodiscard]] uint8_t *getData() const { return _data.get(); }
/// @returns number of components for the bitmap format (i.e. 4 for "RGBA")
[[nodiscard]] uint32_t getNumComponents() const;
/// @returns true on success, false otherwise
bool saveAsPNG(const char* filePath);
};
#endif // DESCENT3_NEWBITMAP_H