dolphin/Source/Core/VideoCommon/AbstractTexture.h

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// Copyright 2017 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <cstddef>
#include <optional>
#include <string>
#include "Common/CommonTypes.h"
#include "Common/MathUtil.h"
#include "VideoCommon/TextureConfig.h"
class AbstractTexture
{
public:
explicit AbstractTexture(const TextureConfig& c);
virtual ~AbstractTexture();
virtual void Bind(unsigned int stage) = 0;
bool Save(const std::string& filename, unsigned int level);
struct RawTextureInfo
{
const u8* data;
u32 stride;
u32 width;
u32 height;
};
std::optional<RawTextureInfo> Map();
std::optional<RawTextureInfo> Map(u32 level, u32 x, u32 y, u32 width, u32 height);
std::optional<RawTextureInfo> Map(u32 level);
virtual void Unmap();
virtual void CopyRectangleFromTexture(const AbstractTexture* source,
const MathUtil::Rectangle<int>& srcrect,
const MathUtil::Rectangle<int>& dstrect) = 0;
virtual void Load(u32 level, u32 width, u32 height, u32 row_length, const u8* buffer,
size_t buffer_size) = 0;
static bool IsCompressedHostTextureFormat(AbstractTextureFormat format);
static size_t CalculateHostTextureLevelPitch(AbstractTextureFormat format, u32 row_length);
const TextureConfig& GetConfig() const;
protected:
virtual std::optional<RawTextureInfo> MapFullImpl();
virtual std::optional<RawTextureInfo> MapRegionImpl(u32 level, u32 x, u32 y, u32 width,
u32 height);
bool m_currently_mapped = false;
const TextureConfig m_config;
};