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71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
#ifndef CTEXTURE_H
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#define CTEXTURE_H
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#include "CResource.h"
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#include "ETexelFormat.h"
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#include <FileIO/FileIO.h>
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#include <Common/types.h>
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#include <Math/CVector2f.h>
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#include <GL/glew.h>
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class CTexture : public CResource
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{
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DECLARE_RESOURCE_TYPE(eTexture)
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friend class CTextureDecoder;
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friend class CTextureEncoder;
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ETexelFormat mTexelFormat; // Format of decoded image data
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ETexelFormat mSourceTexelFormat; // Format of input TXTR file
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u16 mWidth, mHeight; // Image dimensions
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u32 mNumMipMaps; // The number of mipmaps this texture has
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u32 mLinearSize; // The size of the top level mipmap, in bytes
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bool mEnableMultisampling; // Whether multisample should be enabled (if this texture is a render target).
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bool mBufferExists; // Indicates whether image data buffer has valid data
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u8 *mpImgDataBuffer; // Pointer to image data buffer
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u32 mImgDataSize; // Size of image data buffer
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bool mGLBufferExists; // Indicates whether GL buffer has valid data
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GLuint mTextureID; // ID for texture GL buffer
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public:
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CTexture(CResourceEntry *pEntry = 0);
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CTexture(u32 Width, u32 Height);
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~CTexture();
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bool BufferGL();
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void Bind(u32 GLTextureUnit);
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void Resize(u32 Width, u32 Height);
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float ReadTexelAlpha(const CVector2f& rkTexCoord);
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bool WriteDDS(IOutputStream& rOut);
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// Accessors
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ETexelFormat TexelFormat() const { return mTexelFormat; }
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ETexelFormat SourceTexelFormat() const { return mSourceTexelFormat; }
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u32 Width() const { return (u32) mWidth; }
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u32 Height() const { return (u32) mHeight; }
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u32 NumMipMaps() const { return mNumMipMaps; }
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GLuint TextureID() const { return mTextureID; }
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inline void SetMultisamplingEnabled(bool Enable)
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{
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if (mEnableMultisampling != Enable)
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DeleteBuffers();
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mEnableMultisampling = Enable;
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}
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// Static
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static u32 FormatBPP(ETexelFormat Format);
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// Private
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private:
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void CalcLinearSize();
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u32 CalcTotalSize();
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void CopyGLBuffer();
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void DeleteBuffers();
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};
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#endif // CTEXTURE_H
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