134 lines
4.2 KiB
C++
134 lines
4.2 KiB
C++
/*
|
|
---------------------------------------------------------------------------
|
|
Open Asset Import Library (assimp)
|
|
---------------------------------------------------------------------------
|
|
|
|
Copyright (c) 2006-2024, assimp team
|
|
|
|
All rights reserved.
|
|
|
|
Redistribution and use of this software in source and binary forms,
|
|
with or without modification, are permitted provided that the following
|
|
conditions are met:
|
|
|
|
* Redistributions of source code must retain the above
|
|
copyright notice, this list of conditions and the
|
|
following disclaimer.
|
|
|
|
* Redistributions in binary form must reproduce the above
|
|
copyright notice, this list of conditions and the
|
|
following disclaimer in the documentation and/or other
|
|
materials provided with the distribution.
|
|
|
|
* Neither the name of the assimp team, nor the names of its
|
|
contributors may be used to endorse or promote products
|
|
derived from this software without specific prior
|
|
written permission of the assimp team.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
---------------------------------------------------------------------------
|
|
*/
|
|
|
|
/** @file Bitmap.h
|
|
* @brief Defines bitmap format helper for textures
|
|
*
|
|
* Used for file formats which embed their textures into the model file.
|
|
*/
|
|
#pragma once
|
|
#ifndef AI_BITMAP_H_INC
|
|
#define AI_BITMAP_H_INC
|
|
|
|
#ifdef __GNUC__
|
|
# pragma GCC system_header
|
|
#endif
|
|
|
|
#include "defs.h"
|
|
#include <cstdint>
|
|
#include <cstddef>
|
|
|
|
struct aiTexture;
|
|
|
|
namespace Assimp {
|
|
|
|
class IOStream;
|
|
|
|
// ---------------------------------------------------------------------------
|
|
/**
|
|
* This class is used to store and write bitmap information.
|
|
*/
|
|
class ASSIMP_API Bitmap {
|
|
protected:
|
|
|
|
struct Header {
|
|
uint16_t type;
|
|
uint32_t size;
|
|
uint16_t reserved1;
|
|
uint16_t reserved2;
|
|
uint32_t offset;
|
|
|
|
// We define the struct size because sizeof(Header) might return a wrong result because of structure padding.
|
|
static constexpr std::size_t header_size =
|
|
sizeof(uint16_t) +
|
|
sizeof(uint32_t) +
|
|
sizeof(uint16_t) +
|
|
sizeof(uint16_t) +
|
|
sizeof(uint32_t);
|
|
};
|
|
|
|
struct DIB {
|
|
uint32_t size;
|
|
int32_t width;
|
|
int32_t height;
|
|
uint16_t planes;
|
|
uint16_t bits_per_pixel;
|
|
uint32_t compression;
|
|
uint32_t image_size;
|
|
int32_t x_resolution;
|
|
int32_t y_resolution;
|
|
uint32_t nb_colors;
|
|
uint32_t nb_important_colors;
|
|
|
|
// We define the struct size because sizeof(DIB) might return a wrong result because of structure padding.
|
|
static constexpr std::size_t dib_size =
|
|
sizeof(uint32_t) +
|
|
sizeof(int32_t) +
|
|
sizeof(int32_t) +
|
|
sizeof(uint16_t) +
|
|
sizeof(uint16_t) +
|
|
sizeof(uint32_t) +
|
|
sizeof(uint32_t) +
|
|
sizeof(int32_t) +
|
|
sizeof(int32_t) +
|
|
sizeof(uint32_t) +
|
|
sizeof(uint32_t);
|
|
};
|
|
|
|
static constexpr std::size_t mBytesPerPixel = 4;
|
|
|
|
public:
|
|
/// @brief Will save an aiTexture instance as a bitmap.
|
|
/// @param texture The pointer to the texture instance
|
|
/// @param file The filename to save into.
|
|
/// @return true if successfully saved, false if not.
|
|
static bool Save(aiTexture* texture, IOStream* file);
|
|
|
|
protected:
|
|
static void WriteHeader(Header& header, IOStream* file);
|
|
static void WriteDIB(DIB& dib, IOStream* file);
|
|
static void WriteData(aiTexture* texture, IOStream* file);
|
|
};
|
|
|
|
}
|
|
|
|
#endif // AI_BITMAP_H_INC
|