stream_texture.cpp

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#include "stream_texture.h"

StreamTexture* StreamTexture::Clone()
{
    unsigned char *x   = Map();
    StreamTexture *ret = new StreamTexture( sizeX, sizeY, filtertype, x );
    UnMap( false );
    return ret;
}

StreamTexture::StreamTexture( int width, int height, enum FILTER filtertype, unsigned char *origdata )
{
    /*
     *  img_type=Unrecognized;
     *  img_depth=8;
     *  img_color_type=(PNG_HAS_COLOR&PNG_HAS_ALPHA);
     *  img_alpha=true;
     *  strip_16=true;
     */
    mode = _24BITRGBA;
    this->stage       = 0;
    this->sizeX       = width;
    this->sizeY       = height;
    this->original    = NULL;
    this->palette     = NULL;
    this->refcount    = 0;
    texture_target    = TEXTURE2D;
    image_target      = TEXTURE_2D;
    ismipmapped       = filtertype;
    GFXCreateTexture( width, height, RGBA32, &name, 0, 0, filtertype );
    this->mutabledata = (unsigned char*) malloc( sizeof (unsigned char)*width*height*4 );
    if (origdata) {
        memcpy( this->mutabledata, origdata, sizeof (unsigned char)*width*height*4 );
        GFXTransferTexture( mutabledata, name, sizeX, sizeY, RGBA32 );
    }
}

unsigned char* StreamTexture::Map()
{
    return mutabledata;
}

void StreamTexture::UnMap( bool changed )
{
    if (changed) {
        MakeActive( 0 );
        GFXTransferTexture( mutabledata, name, sizeX, sizeY, RGBA32 );
    }
}

StreamTexture::~StreamTexture()
{
    GFXDeleteTexture( name );
    name = -1;
    if (this->mutabledata)
        free( this->mutabledata );
    this->mutabledata = NULL;
}

void StreamTexture::MakeActive( int stage )
{
    GFXSelectTexture( name, stage );
}