Subversion Repositories jart

-- Author : Julian Andres Guarin Reyes.

-- Project : JART, Just Another Ray Tracer.

-- email : jguarin2002 at gmail.com, j.guarin at javeriana.edu.co

-- This code was entirely written by Julian Andres Guarin Reyes.

-- The following code is licensed under GNU Public License

-- http://www.gnu.org/licenses/gpl-3.0.txt.

 -- This file is part of JART (Just Another Ray Tracer).

    -- JART (Just Another Ray Tracer) is free software: you can redistribute it and/or modify

    -- it under the terms of the GNU General Public License as published by

    -- the Free Software Foundation, either version 3 of the License, or

    -- (at your option) any later version.

    -- JART (Just Another Ray Tracer) 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 General Public License for more details.

    -- You should have received a copy of the GNU General Public License

    -- along with JART (Just Another Ray Tracer).  If not, see <http://www.gnu.org/licenses/>.

library ieee;

use ieee.std_logic_1164.all;

use work.powerGrid.all;

entity rayxsphereGrid is

        generic (

        -- Width of Column identificator.

        IDW     : integer := 2;

        -- Number of Columns.

        C       : integer := 4;

        -- Input rays width.

        W0      : integer := 18;

        -- Dot products and spheres constant width

        W1      : integer := 32;

        );

        port (

        -- The usual control signals.

        clk,rst : in std_logic;

        -- Grid, rays and sphere flow through control signals.

        pipeOn                  : in std_logic;

        nxtSphere               : in std_logic_vector (C-1 downto 0);

        -- R-F0

        -- Input Values. 

        -- The ray input vector.

        iRayx: in std_logic_vector (W0 - 1 downto 0);

        iRayy: in std_logic_vector (W0 - 1 downto 0);

        iRayz: in std_logic_vector (W0 - 1 downto 0);

        -- The spheres x position (sphere centers) input vectors.

        iSphrCenterx: in std_logic_vector (C*W0 - 1 downto 0);

        -- The spheres y position (sphere centers) input vectors.

        iSphrCentery: in std_logic_vector (C*W0 - 1 downto 0);

        -- The spheres z position (sphere centers) input vectors.

        iSphrCenterz: in std_logic_vector (C*W0 - 1 downto 0);

        -- The spheres x position (sphere centers) output vectors.

        oSphrCenterx: out std_logic_vector (C*W0 - 1 downto 0);

        -- The spheres y positions (sphere centes) output vectors.

        oSphrCentery: out std_logic_vector (C*W0 - 1 downto 0);

        -- The spheres z positions (sphere centers) output vectors.             

        oSphrCenterz: out std_logic_vector (C*W0 - 1 downto 0);

        -- Output Values

        -- The ray output vector.

        oRayx: out std_logic_vector (W0 - 1 downto 0);

        oRayy: out std_logic_vector (W0 - 1 downto 0);

        oRayz: out std_logic_vector (W0 - 1 downto 0);

        -- R-F1

        -- K Input / Output.

        kInput  : in std_logic_vector (C*W1 - 1 downto 0);

        kOutput : out std_logic_vector (C*W1 - 1 downto 0)

        --R-F2

        -- Input Values

        refvd   : in std_logic_vector (W1-1 downto 0);

        selvd   : out std_logic_vector (W1-1 downto 0);

        colid   : out std_logic_vector (IDW-1 downto 0);

        inter   : out std_logic

        );

end entity;

architecture rtl of rayxsphereGrid is

        -- Signal to connect outgoing floor0 vd and ingoing floor1 vd.

        signal svdf0f1  : std_logic_vector (C*W1-1 downto 0);

        signal svdf1f2  : std_logic_vector (C*W1-1 downto 0);

begin

        RF0 : floor0Row

        generic map(

        nlw=W1,

        viw=W0,

        col=C );

        port map(

        clk                             => clk,

        rst                             => rst,

        nxtRay                  => pipeOn,

        nxtSphere               => nxtSphere,

        iRayx                   => iRayx,

        iRayy                   => iRayy,

        iRayz                   => iRayz,

        iSphrCenterx    => iSphrCenterx,

        iSphrCentery    => iSphrCentery,

        iSphrCenterz    => iSphrCenterz,

        oSphrCenterx    => oSphrCenterx,

        oSphrCentery    => oSphrCentery,

        oSphrCenterz    => oSphrCenterz,

        oRayx                   => oRayx,

        oRayy                   => oRayy,

        oRayz                   => oRayz,

        vdOutput                => svdf0f1

        );

        RF1 : floor1Row

        generic map (

        viw = W1,

        col = C );

        port map (

        clk                             => clk,

        rst                             => rst,

        pipeOn                  => pipeOn,

        nxtSphere               => nxtSphere,

        vdInput                 => svdf0f1,

        vdOutput                => svdf1f2,

        kInput                  => kInput,

        kOutput                 => kOutput

        );

        RF2 : floor2Row

        generic map (

        viw = W1,

        idColW = IDW,

        col = C );

        port map (

        clk                             => clk,

        rst                             => rst,

        pipeOn                  => pipeOn,

        refvd                   => refvd,

        selvd                   => selvd,

        colvd                   => svdf1f2,

        colid                   => colid,

        inter                   => inter

        );

end rtl;