mgl_texture_loader.h

[詳解]

// SPDX-License-Identifier: Zlib
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
 
#ifndef INCGUARD_MGL_TEXTURE_LOADER_H_1607778878
#define INCGUARD_MGL_TEXTURE_LOADER_H_1607778878
 
#include <mgl/file/mgl_file_path_view.h>
#include <mgl/hash/mgl_hash_fnv1a.h>
#include <mgl/mgl_environment.h>
#include <mgl/render/mgl_texture_resource.h>
#include <mgl/stl/mgl_stl_memory.h>
 
namespace MGL::Render
{
using TextureLoaderKey = uint32_t;
 
constexpr uint32_t kDefaultTextureLoaderKeySeed = MGL::Hash::kFNV1aDefaultValue32;    // 32bitの値なら何でもいい．衝突する場合は変更を
 
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
constexpr TextureLoaderKey MakeTextureLoaderKey(const char *key, uint32_t seed = kDefaultTextureLoaderKeySeed) noexcept
{
    return Hash::FNV1a(key, seed);
}
 
class TextureLoader
{
public:
    virtual ~TextureLoader() noexcept = default;
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    virtual bool Load(TextureResource &textureResource, const File::PathView &path) noexcept = 0;
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    virtual bool Load(TextureResource &textureResource, const void *imageData, size_t dataSize) noexcept = 0;
};
 
using UniqueTextureLoader = STL::unique_ptr<TextureLoader>;
}    // namespace MGL::Render
 
#endif    // INCGUARD_MGL_TEXTURE_LOADER_H_1607778878
 
// vim: et ts=4 sw=4 sts=4