virtualx-engine/modules/betsy/image_compress_betsy.h

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/*  image_compress_betsy.h                                                */
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#ifndef IMAGE_COMPRESS_BETSY_H
#define IMAGE_COMPRESS_BETSY_H

#include "core/io/image.h"

enum BetsyFormat {
	BETSY_FORMAT_BC1,
	BETSY_FORMAT_BC1_DITHER,
	BETSY_FORMAT_BC3,
	BETSY_FORMAT_BC6_SIGNED,
	BETSY_FORMAT_BC6_UNSIGNED,
};

class BetsyShader : public RefCounted {
public:
	RID compiled;
	RID pipeline;

	BetsyShader();
	~BetsyShader();
};

struct BC6PushConstant {
	float sizeX;
	float sizeY;
	uint32_t padding[2];
};

struct BC1PushConstant {
	uint32_t num_refines;
	uint32_t padding[3];
};

void free_device();

Error compress_betsy(BetsyFormat p_format, Image *r_img);

Error _betsy_compress_bptc(Image *r_img, Image::UsedChannels p_channels);
Error _betsy_compress_s3tc(Image *r_img, Image::UsedChannels p_channels);

#endif // IMAGE_COMPRESS_BETSY_H