/*******************************************************************************
 * display.cpp
 *
 * ---------------------------------------------------------------------------
 * UberPOV Raytracer version 1.37.
 * Portions Copyright 2013 Christoph Lipka.
 *
 * UberPOV 1.37 is an experimental unofficial branch of POV-Ray 3.7, and is
 * subject to the same licensing terms and conditions.
 * ---------------------------------------------------------------------------
 * Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
 * Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
 *
 * POV-Ray is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * POV-Ray is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * ---------------------------------------------------------------------------
 * POV-Ray is based on the popular DKB raytracer version 2.12.
 * DKBTrace was originally written by David K. Buck.
 * DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
 * ---------------------------------------------------------------------------
 * $File: //depot/clipka/upov/source/frontend/display.cpp $
 * $Revision: #2 $
 * $Change: 5921 $
 * $DateTime: 2013/07/18 22:48:19 $
 * $Author: clipka $
 *******************************************************************************/

// configbase.h must always be the first POV file included within base *.cpp files
#include "base/configbase.h"
#include "base/types.h"

#include "frontend/configfrontend.h"
#include "frontend/display.h"

// this must be the last file included
#include "base/povdebug.h"

namespace pov_frontend
{

Display::Display(unsigned int w, unsigned int h, pov_base::GammaCurvePtr g, float gld) :
	width(w),
	height(h),
	gamma(g),
	glareDesaturation(gld)
{
	// nothing to do
}

Display::~Display()
{
	// nothing to do
}

unsigned int Display::GetWidth()
{
	return width;
}

unsigned int Display::GetHeight()
{
	return height;
}

pov_base::GammaCurvePtr Display::GetGamma()
{
	return pov_base::GammaCurvePtr(gamma);
}

float Display::GetGlareDesaturation()
{
	return glareDesaturation;
}

void Display::DrawRectangleFrame(unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2, const RGBA8& colour)
{
	for(unsigned int x = x1; x <= x2; x++)
	{
		DrawPixel(x, y1, colour);
		DrawPixel(x, y2, colour);
	}

	for(unsigned int y = y1; y <= y2; y++)
	{
		DrawPixel(x1, y, colour);
		DrawPixel(x2, y, colour);
	}
}

void Display::DrawFilledRectangle(unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2, const RGBA8& colour)
{
	for(unsigned int y = y1; y <= y2; y++)
		for(unsigned int x = x1; x <= x2; x++)
			DrawPixel(x, y, colour);
}

void Display::DrawPixelBlock(unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2, const RGBA8 *colour)
{
	for(unsigned int y = y1, i = 0; y <= y2; y++)
		for(unsigned int x = x1; x <= x2; x++, i++)
			DrawPixel(x, y, colour[i]);
}

void Display::Clear()
{
	RGBA8 colour;

	colour.red = colour.green = colour.blue = colour.alpha = 0;

	for(unsigned int y = 0; y < GetHeight(); y++)
		for(unsigned int x = 0; x < GetWidth(); x++)
			DrawPixel(x, y, colour);
}

}
