zglPrim2D.cpp

/*
 * Copyright (C) 2010 ZiiLABS Pte Ltd
 * All Rights Reserved.
 *
 * This software and its associated documentation may contain some
 * proprietary, confidential and trade secret information of
 * ZiiLABS Pte Ltd and except as provided by written agreement with
 * ZiiLABS Pte Ltd
 *
 * a)   no part may be disclosed, distributed, reproduced, transmitted,
 *      transcribed, stored in a retrieval system, adapted or translated
 *      in any form or by any means electronic, mechanical, magnetic,
 *      optical, chemical, manual or otherwise,
 *
 * and
 *
 * b)   the recipient is not entitled to discover through reverse
 *      engineering or reverse compiling or other such techniques or
 *      processes the trade secrets contained therein or in the
 *      documentation.
 */

#include <stdlib.h> //!< NULL
#include "zglCore.h"
#include "zglPrim2D.h"

zglPrim2D::zglPrim2D()
{
	m_type = TYPE_PRIM2D;
}

void zglPrim2D::init(zglDrawType type, zglVertex * vertex, int vert_num,
		zglTexture * texture)
{
	m_draw_type = type;
	m_vertex = vertex;
	m_vertex_num = vert_num;
	m_texture = texture;

	m_indices = NULL;
	m_indices_num = 0;

	//!< reset the local coordinate system matrix
	m_world = 1.0f;

	//!< Add to the node list
	queue();
}

void zglPrim2D::init(zglDrawType type, zglVertex* vertex, int vert_num,
		unsigned short * indices, int index_num, zglTexture * texture)
{
	m_draw_type = type;
	m_vertex = vertex;
	m_vertex_num = vert_num;
	m_texture = texture;

	m_indices = (unsigned short *) indices;
	m_indices_num = index_num;

	//!< reset the local coordinate system matrix
	m_world = 1.0f;

	//!< Add to the node list
	queue();
}

void zglPrim2D::render()
{
	//preRender();
	zglCore::setModelView(m_world);
	zglCore::setBlendType((zglBlendType) m_blend_type);

	if(m_hwbuffer_type != HWBUFFER_AVAILABLE)
	{
		zglCore::setVertexPointer2(&m_vertex->x, sizeof(zglVertex));
		zglCore::setColorPointer4(&m_vertex->r, sizeof(zglVertex));

		if (m_texture)
		{
			zglCore::setTexture(m_texture->getTexID(), true);
			zglCore::setTexCoordPointer2(&m_vertex->u, sizeof(zglVertex));
		}
		else
		{
			zglCore::setTexture(0, false);
		}

		if(	m_indices_num > 0)
		{
			zglCore::drawElements(m_draw_type, m_indices_num, m_indices);
		}
		else
		{
			zglCore::drawArrays(m_draw_type, 0, m_vertex_num);
		}
	}
	else
	{
		zglCore::setBuffer(VERTEX_BUFFER, m_vbo_vertex);
		zglCore::setVertexPointer2(NULL, sizeof(zglVertex));
		zglCore::setColorPointer4( ((unsigned char*)NULL + 0x0c), sizeof(zglVertex));

		if (m_texture)
		{
			zglCore::setTexture(m_texture->getTexID(), true);
			zglCore::setTexCoordPointer2((float*)((char*)NULL + 0x10), sizeof(zglVertex));
		}
		else
		{
			zglCore::setTexture(0, false);
		}

		if(	m_indices_num > 0)
		{
			zglCore::setBuffer(INDEX_BUFFER, m_vbo_index);
			zglCore::drawElements(m_draw_type, m_indices_num, NULL);//
			zglCore::setBuffer(INDEX_BUFFER, 0);
		}
		else
		{
			zglCore::drawArrays(m_draw_type, 0, m_vertex_num);
		}

		zglCore::setBuffer(VERTEX_BUFFER, 0);
	}

	//postRender();
}

void zglPrim2D::calcSortDepth()
{
	unsigned char sort_value = m_sort_offset + 0x80;
	if (sort_value > 0xff || sort_value < 0x00)
	{
		m_sort_value = 0x80; //!< Default value is 0x80
	}
	else
	{
		m_sort_value = sort_value;
	}
}