mirror of
https://github.com/kevinbentley/Descent3.git
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58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
/*
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* Descent 3
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* Copyright (C) 2024 Descent Developers
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "NewBitmap.h"
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#include "pserror.h"
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#include <stb_image_write.h>
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NewBitmap::NewBitmap(uint32_t w, uint32_t h, PixelDataFormat format, bool flippedY)
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: _w(w), _h(h), _format(format), _flippedY(flippedY), _data(allocateData(w, h, format)) {
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ASSERT(_data.get());
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}
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std::unique_ptr<uint8_t[]> NewBitmap::allocateData(uint32_t w, uint32_t h, PixelDataFormat format) {
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switch (format) {
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case PixelDataFormat::RGBA32: return std::make_unique<uint8_t[]>(w * h * 4);
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default: return nullptr;
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}
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}
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uint32_t NewBitmap::getNumComponents() const {
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switch (_format) {
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case PixelDataFormat::RGBA32: return 4;
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default: return 0;
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}
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}
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uint32_t NewBitmap::getStride() const {
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switch (_format) {
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case PixelDataFormat::RGBA32: return _w * 4;
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default: return 0;
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}
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}
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bool NewBitmap::saveAsPNG(const char *filePath) {
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// TODO: Support more formats? stb_write supports at least RGB and RGBA
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ASSERT(_format == PixelDataFormat::RGBA32);
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stbi_flip_vertically_on_write(_flippedY);
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return stbi_write_png(filePath, _w, _h, getNumComponents(), _data.get(), getStride()) == 0;
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}
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