92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
#include"TextureFileCreater.h"
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#include"ILImage.h"
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#include<hgl/log/LogInfo.h>
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class TextureFileCreaterRGB:public TextureFileCreater
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{
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public:
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using TextureFileCreater::TextureFileCreater;
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void RGB8toRGB565(uint16 *target,uint8 *src,uint size)
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{
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for(uint i=0;i<size;i++)
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{
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*target=((src[0]<<8)&0xF800)
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|((src[1]<<3)&0x7E0)
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| (src[2]>>3);
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++target;
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src+=3;
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}
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}
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// Bit depth Sign bit present Exponent bits Mantissa bits
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// 32 Yes 8 23
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// 16 Yes 5 10
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// 11 No 5 6
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// 10 No 5 5
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void RGB16FtoB10GR11UF(uint32 *target,uint16 *src,uint size)
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{
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for(uint i=0;i<size;i++)
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{
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*target=((src[2]&0x7FE0)<<17)
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|((src[1]&0x7FF0)<<7)
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| (src[0]&0x7FF0)>>4;
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++target;
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src+=3;
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}
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}
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public:
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bool Write() override
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{
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if(fmt->format==ColorFormat::RGB32U
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||fmt->format==ColorFormat::RGB32I
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||fmt->format==ColorFormat::RGB32F)
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{
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ILuint type;
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if(!ToILType(type,fmt->bits[0],fmt->type))
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return(nullptr);
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void *origin_rgb=image->GetRGB(type);
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return TextureFileCreater::Write(origin_rgb);
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}
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else if(fmt->format==ColorFormat::RGB565)
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{
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void *origin_rgb=image->GetRGB(IL_UNSIGNED_BYTE);
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AutoDelete<uint16> rgb565=new uint16[image->pixel_total()];
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RGB8toRGB565(rgb565,(uint8 *)origin_rgb,image->pixel_total());
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return TextureFileCreater::Write(rgb565);
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}
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else if(fmt->format==ColorFormat::B10GR11UF)
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{
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void *origin_rgb=image->GetRGB(IL_HALF);
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AutoDelete<uint32> b10gr11=new uint32[image->pixel_total()];
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RGB16FtoB10GR11UF(b10gr11,(uint16 *)origin_rgb,image->pixel_total());
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return TextureFileCreater::Write(b10gr11);
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}
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else
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{
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LOG_ERROR(OS_TEXT("Don't support this RGB format"));
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return(false);
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}
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}
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};//class TextureFileCreaterRGB:public TextureFileCreater
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TextureFileCreater *CreateTextureFileCreaterRGB(const PixelFormat *pf,ILImage *image)
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{
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return(new TextureFileCreaterRGB(pf,image));
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}
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