134 lines
3.0 KiB
C++
134 lines
3.0 KiB
C++
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//注：起名为ILImageSupport是为了避免与IL中现有的ilimage冲突
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#include"ILImage.h"
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#include<IL/ilu.h>
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#include<hgl/log/LogInfo.h>
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using namespace hgl;
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ILImage::ILImage()
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{
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ilGenImages(1,&il_index);
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}
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ILImage::~ILImage()
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{
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ilDeleteImages(1,&il_index);
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}
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void ILImage::Bind()
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{
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ilBindImage(il_index);
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}
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bool ILImage::Convert(ILuint format,ILuint type)
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{
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if(il_format==format
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&&il_type==type)return(true);
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Bind();
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if(!ilConvertImage(format,type))
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return(false);
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il_format=format;
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il_type=type;
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return(true);
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}
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bool ILImage::LoadFile(const OSString &filename)
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{
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Bind();
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if(!ilLoadImage(filename.c_str()))
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{
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LOG_ERROR(OS_TEXT("LoadImage failed."));
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return(false);
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}
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il_width =ilGetInteger(IL_IMAGE_WIDTH);
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il_height =ilGetInteger(IL_IMAGE_HEIGHT);
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il_bit =ilGetInteger(IL_IMAGE_BITS_PER_PIXEL);
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il_format =ilGetInteger(IL_IMAGE_FORMAT);
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il_type =ilGetInteger(IL_IMAGE_TYPE);
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if(ilGetInteger(IL_IMAGE_ORIGIN)==IL_ORIGIN_LOWER_LEFT)
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iluFlipImage();
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LOG_INFO(OS_TEXT("\t width: ")+OSString(il_width));
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LOG_INFO(OS_TEXT("\theight: ")+OSString(il_height));
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LOG_INFO(OS_TEXT("\t bit: ")+OSString(il_bit));
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LOG_INFO(OS_TEXT("\tformat: ")+OSString(il_format));
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LOG_INFO(OS_TEXT("\t type: ")+OSString(il_type));
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if(il_format==IL_COLOR_INDEX)
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{
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uint il_pattle=ilGetInteger(IL_PALETTE_TYPE);
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if(il_pattle==IL_PAL_RGB24||il_pattle==IL_PAL_BGR24)
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{
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il_bit =24;
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il_format =IL_BGR;
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il_type =IL_UNSIGNED_BYTE;
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}
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else
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if(il_pattle==IL_PAL_RGB32||il_pattle==IL_PAL_BGR32)
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{
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il_bit =48;
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il_format =IL_BGR;
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il_type =IL_UNSIGNED_SHORT;
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}
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else
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if(il_pattle==IL_PAL_RGBA32||il_pattle==IL_PAL_BGRA32)
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{
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il_bit =32;
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il_format =IL_BGRA;
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il_type =IL_UNSIGNED_BYTE;
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}
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else
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{
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LOG_ERROR("Don't support the pattle format.");
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return(false);
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}
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Convert(il_format,il_type);
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}
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if(il_format==IL_LUMINANCE||il_format==IL_ALPHA)channel_count=1;else
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if(il_format==IL_LUMINANCE_ALPHA) channel_count=2;else
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if(il_format==IL_RGB||il_format==IL_BGR) channel_count=3;else
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if(il_format==IL_RGBA||il_format==IL_BGRA) channel_count=4;else
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channel_count=0;
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return(true);
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}
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void *ILImage::GetR(ILuint type)
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{
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Bind();
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if(il_format==IL_ALPHA)return ilGetAlpha(type);
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if(il_format==IL_LUMINANCE)
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{
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if(il_type!=type)
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{
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if(!Convert(il_format,type))
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return(nullptr);
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return ilGetData();
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}
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}
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return(nullptr);
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}
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void *ILImage::GetData(ILuint format,ILuint type)
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{
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Bind();
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if(il_format!=format||il_type!=type)
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if(!Convert(format,type))
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return nullptr;
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return ilGetData();
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}
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