UltimateZoneBuilder/Source/Native/Texture.h

/*
**  BuilderNative Renderer
**  Copyright (c) 2019 Magnus Norddahl
**
**  This software is provided 'as-is', without any express or implied
**  warranty.  In no event will the authors be held liable for any damages
**  arising from the use of this software.
**
**  Permission is granted to anyone to use this software for any purpose,
**  including commercial applications, and to alter it and redistribute it
**  freely, subject to the following restrictions:
**
**  1. The origin of this software must not be misrepresented; you must not
**     claim that you wrote the original software. If you use this software
**     in a product, an acknowledgment in the product documentation would be
**     appreciated but is not required.
**  2. Altered source versions must be plainly marked as such, and must not be
**     misrepresented as being the original software.
**  3. This notice may not be removed or altered from any source distribution.
*/

#pragma once

enum class CubeMapFace : int
{
	PositiveX,
	PositiveY,
	PositiveZ,
	NegativeX,
	NegativeY,
	NegativeZ
};

class RenderDevice;

class Texture
{
public:
	Texture();
	~Texture();

	void Set2DImage(int width, int height);
	void SetCubeImage(int size);

	void SetPixels(const void* data);
	void SetCubePixels(CubeMapFace face, const void* data);

	bool IsCubeTexture() const { return mCubeTexture; }
	int GetWidth() const { return mWidth; }
	int GetHeight() const { return mHeight; }

	bool IsTextureCreated() const { return mTexture; }
	void Invalidate();

	GLuint GetTexture(RenderDevice* device);
	GLuint GetFramebuffer(RenderDevice* device, bool usedepthbuffer);
	GLuint GetPBO(RenderDevice* device);

	RenderDevice* Device = nullptr;

private:
	int mWidth = 0;
	int mHeight = 0;
	bool mCubeTexture = false;
	bool mPBOTexture = false;
	std::map<int, std::vector<uint32_t>> mPixels;
	GLuint mTexture = 0;
	GLuint mFramebuffer = 0;
	GLuint mDepthRenderbuffer = 0;
	//
	GLuint mPBO = 0;
};