mirror of
https://github.com/love2d/love.git
synced 2026-08-16 00:02:12 +02:00
Sasha Szpakowski
117 lines
3.0 KiB
C++
117 lines
3.0 KiB
C++
/**
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* Copyright (c) 2006-2023 LOVE Development Team
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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**/
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#pragma once
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// LOVE
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#include "common/Data.h"
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#include "common/StringMap.h"
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#include "common/int.h"
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#include "common/pixelformat.h"
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#include "CompressedSlice.h"
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#include "FormatHandler.h"
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// STL
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#include <vector>
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#include <list>
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namespace love
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{
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namespace image
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{
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/**
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* CompressedImageData represents image data which is designed to be uploaded to
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* the GPU and rendered in its compressed form, without being decompressed.
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* http://renderingpipeline.com/2012/07/texture-compression/
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**/
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class CompressedImageData : public Data
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{
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public:
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static love::Type type;
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CompressedImageData(const std::list<FormatHandler *> &formats, Data *filedata);
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CompressedImageData(const CompressedImageData &c);
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virtual ~CompressedImageData();
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// Implements Data.
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CompressedImageData *clone() const override;
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void *getData() const override;
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size_t getSize() const override;
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/**
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* Gets the number of mipmaps in this Compressed Image Data.
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* Includes the base image level.
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**/
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int getMipmapCount() const;
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/**
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* Gets the number of slices (array layers, cube faces, 3D layers, etc.)
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**/
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int getSliceCount(int mip = 0) const;
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/**
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* Gets the size in bytes of a sub-image at the specified mipmap level.
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**/
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size_t getSize(int miplevel) const;
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/**
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* Gets the byte data of a sub-image at the specified mipmap level.
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**/
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void *getData(int miplevel) const;
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/**
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* Gets the width of a sub-image at the specified mipmap level.
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**/
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int getWidth(int miplevel = 0) const;
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/**
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* Gets the height of a sub-image at the specified mipmap level.
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**/
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int getHeight(int miplevel = 0) const;
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/**
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* Gets the format of the compressed data.
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**/
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PixelFormat getFormat() const;
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bool isSRGB() const;
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CompressedSlice *getSlice(int slice, int miplevel) const;
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protected:
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PixelFormat format;
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bool sRGB;
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// Single block of memory containing all of the sub-images.
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StrongRef<CompressedMemory> memory;
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// Texture info for each mipmap level.
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std::vector<StrongRef<CompressedSlice>> dataImages;
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void checkSliceExists(int slice, int miplevel) const;
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}; // CompressedImageData
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} // image
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} // love
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