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Viewing changes to effects/ppeffect_temperature.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Milan Zamazal
  • Date: 2007-05-01 16:32:13 UTC
  • mfrom: (1.1.1 upstream)
  • Revision ID: james.westby@ubuntu.com-20070501163213-ni1933khtg9fdvn5
Tags: 0.3.5-2
Move to unstable.

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effects/ppeffect_temperature.cpp
 
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#include <iostream>
 
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#include <stdlib.h>
 
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#include <string.h>
 
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#include <gdk-pixbuf/gdk-pixdata.h>
 
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#include "../imagesource/imagesource_cms.h"
 
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#include "../layout.h"
 
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#include "ppeffect_temperature.h"
 
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#include "ppeffect_temperature_icon.cpp"
 
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PPEffect_Temperature::PPEffect_Temperature(PPEffectHeader &header,enum PPEFFECT_STAGE stage)
 
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        :       PPEffect(header,stage), tempchange(0), transform(NULL)
 
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{
 
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}
 
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PPEffect_Temperature::~PPEffect_Temperature()
 
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{
 
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        if(transform)
 
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                delete transform;
 
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}
 
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void PPEffect_Temperature::MakeTransform(IS_TYPE type)
 
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{
 
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        CMSRGBGamma RGBGamma(2.2,2.2,2.2);
 
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        CMSGamma GreyGamma(2.2);
 
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        CMSWhitePoint srcwp(6500+tempchange);
 
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        CMSWhitePoint dstwp(6500);
 
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        CMSProfile *source;
 
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        switch(STRIP_ALPHA(type))
 
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        {
 
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                case IS_TYPE_RGB:
 
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                        source=new CMSProfile(CMSPrimaries_Rec709,RGBGamma,srcwp);
 
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                        break;
 
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                case IS_TYPE_GREY:
 
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                        source=new CMSProfile(GreyGamma,srcwp);
 
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                        break;
 
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                default:
 
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                        throw "Only RGB and Greyscale images are currently supported";
 
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        }
 
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        if(!source)
 
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                throw "Can't create source profile";
 
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        CMSProfile dest(CMSPrimaries_Rec709,RGBGamma,dstwp);
 
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        transform=new CMSTransform(source,&dest,LCMSWRAPPER_INTENT_ABSOLUTE_COLORIMETRIC);
 
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        delete source;
 
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}
 
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ImageSource *PPEffect_Temperature::Apply(ImageSource *source)
 
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{
 
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        if(!transform)
 
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                MakeTransform(source->type);
 
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        if(transform->GetInputColourSpace()!=STRIP_ALPHA(source->type))
 
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        {
 
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                delete transform;
 
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                transform=NULL;
 
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                MakeTransform(source->type);
 
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        }
 
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        return(new ImageSource_CMS(source,transform));
 
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}
 
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void PPEffect_Temperature::SetTempChange(int tempchange)
 
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{
 
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        if(transform)
 
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                delete transform;
 
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        transform=NULL;
 
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        this->tempchange=tempchange;
 
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}
 
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GdkPixbuf *PPEffect_Temperature::icon=NULL;
 
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GdkPixbuf *PPEffect_Temperature::GetIcon_static()
 
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{
 
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        if(icon)
 
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                return(icon);
 
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        GdkPixdata pd;
 
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        GError *err;
 
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        if(!gdk_pixdata_deserialize(&pd,sizeof(PPEffect_Temperature_Icon),PPEffect_Temperature_Icon,&err))
 
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                throw(err->message);
 
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        if(!(icon=gdk_pixbuf_from_pixdata(&pd,false,&err)))
 
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                throw(err->message);
 
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        return(icon);
 
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}