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// Copyright 2017 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <cstddef>
#include <string>
#include "Common/CommonTypes.h"
#include "Common/MathUtil.h"
#include "VideoCommon/TextureConfig.h"
struct ImTextureRef;
class AbstractTexture
{
public:
explicit AbstractTexture(const TextureConfig& c);
virtual ~AbstractTexture() = default;
// Support implicit conversion between AbstractTexture and ImTextureId and ImTextureRef.
using imgui_texture_id = unsigned long long;
operator imgui_texture_id() const { return reinterpret_cast<imgui_texture_id>(this); }
operator ImTextureRef() const;
virtual void CopyRectangleFromTexture(const AbstractTexture* src,
const MathUtil::Rectangle<int>& src_rect, u32 src_layer,
u32 src_level, const MathUtil::Rectangle<int>& dst_rect,
u32 dst_layer, u32 dst_level) = 0;
virtual void ResolveFromTexture(const AbstractTexture* src, const MathUtil::Rectangle<int>& rect,
u32 layer, u32 level) = 0;
virtual void Load(u32 level, u32 width, u32 height, u32 row_length, const u8* buffer,
size_t buffer_size, u32 layer = 0) = 0;
// Hints to the backend that we have finished rendering to this texture, and it will be used
// as a shader resource and sampled. For Vulkan, this transitions the image layout.
virtual void FinishedRendering();
u32 GetWidth() const { return m_config.width; }
u32 GetHeight() const { return m_config.height; }
u32 GetLevels() const { return m_config.levels; }
u32 GetLayers() const { return m_config.layers; }
u32 GetSamples() const { return m_config.samples; }
AbstractTextureFormat GetFormat() const { return m_config.format; }
MathUtil::Rectangle<int> GetRect() const { return m_config.GetRect(); }
MathUtil::Rectangle<int> GetMipRect(u32 level) const { return m_config.GetMipRect(level); }
bool IsMultisampled() const { return m_config.IsMultisampled(); }
bool Save(const std::string& filename, unsigned int level, int compression = 6) const;
static bool IsCompressedFormat(AbstractTextureFormat format);
static bool IsDepthFormat(AbstractTextureFormat format);
static bool IsStencilFormat(AbstractTextureFormat format);
static bool IsCompatibleDepthAndColorFormats(AbstractTextureFormat depth_format,
AbstractTextureFormat color_format);
static u32 CalculateStrideForFormat(AbstractTextureFormat format, u32 row_length);
static u32 GetTexelSizeForFormat(AbstractTextureFormat format);
static u32 GetBlockSizeForFormat(AbstractTextureFormat format);
const TextureConfig& GetConfig() const;
protected:
const TextureConfig m_config;
};
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