term-owo-cpp/clip-lib/clip_win_bmp.h

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2024-06-20 14:11:55 +00:00
// Clip Library
// Copyright (c) 2015-2024 David Capello
//
// This file is released under the terms of the MIT license.
// Read LICENSE.txt for more information.
#ifndef CLIP_WIN_BMP_H_INCLUDED
#define CLIP_WIN_BMP_H_INCLUDED
#pragma once
#if !CLIP_ENABLE_IMAGE
#error This file can be include only when CLIP_ENABLE_IMAGE is defined
#endif
#include <cstdint>
#include <windows.h>
namespace clip {
class image;
struct image_spec;
namespace win {
struct BitmapInfo {
BITMAPV5HEADER* b5 = nullptr;
BITMAPINFO* bi = nullptr;
int width = 0;
int height = 0;
uint16_t bit_count = 0;
uint32_t compression = 0;
uint32_t red_mask = 0;
uint32_t green_mask = 0;
uint32_t blue_mask = 0;
uint32_t alpha_mask = 0;
BitmapInfo();
explicit BitmapInfo(BITMAPV5HEADER* pb5);
explicit BitmapInfo(BITMAPINFO* pbi);
bool is_valid() const {
return (b5 || bi);
}
void fill_spec(image_spec& spec) const;
// Fills the output_img with the data provided by this
// BitmapInfo. Returns true if it was able to fill the output image
// or false otherwise.
bool to_image(image& output_img) const;
private:
bool load_from(BITMAPV5HEADER* b5);
bool load_from(BITMAPINFO* bi);
};
// Returns a handle to the HGLOBAL memory reserved to create a DIBV5
// based on the image passed by parameter. Returns null if it cannot
// create the handle.
HGLOBAL create_dibv5(const image& image);
} // namespace win
} // namespace clip
#endif // CLIP_WIN_BMP_H_INCLUDED