dolphin/Source/Core/VideoBackends/OGL/TextureCache.h

// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.

#pragma once

#include <map>

#include "Common/GL/GLUtil.h"

#include "VideoCommon/BPStructs.h"
#include "VideoCommon/TextureCacheBase.h"
#include "VideoCommon/VideoCommon.h"

namespace OGL
{

class TextureCache : public TextureCacheBase
{
public:
	TextureCache();
	~TextureCache();

	static void DisableStage(unsigned int stage);
	static void SetStage();

private:
	struct TCacheEntry : TCacheEntryBase
	{
		GLuint texture;
		GLuint framebuffer;

		//TexMode0 mode; // current filter and clamp modes that texture is set to
		//TexMode1 mode1; // current filter and clamp modes that texture is set to

		TCacheEntry(const TCacheEntryConfig& config);
		~TCacheEntry();

		void CopyRectangleFromTexture(
			const TCacheEntryBase* source,
			const MathUtil::Rectangle<int> &srcrect,
			const MathUtil::Rectangle<int> &dstrect) override;

		void Load(unsigned int width, unsigned int height,
			unsigned int expanded_width, unsigned int level) override;

		void FromRenderTarget(u8 *dst, PEControl::PixelFormat srcFormat, const EFBRectangle& srcRect,
			bool scaleByHalf, unsigned int cbufid, const float *colmat) override;

		void Bind(unsigned int stage) override;
		bool Save(const std::string& filename, unsigned int level) override;
	};

	TCacheEntryBase* CreateTexture(const TCacheEntryConfig& config) override;
	void ConvertTexture(TCacheEntryBase* entry, TCacheEntryBase* unconverted, void* palette, TlutFormat format) override;

	void CopyEFB(u8* dst, u32 format, u32 native_width, u32 bytes_per_row, u32 num_blocks_y, u32 memory_stride,
		PEControl::PixelFormat srcFormat, const EFBRectangle& srcRect,
		bool isIntensity, bool scaleByHalf) override;

	void CompileShaders() override;
	void DeleteShaders() override;
};

bool SaveTexture(const std::string& filename, u32 textarget, u32 tex, int virtual_width, int virtual_height, unsigned int level);

}