-- Author : Julian Andres Guarin Reyes.
|
-- Author : Julian Andres Guarin Reyes.
|
-- Project : JART, Just Another Ray Tracer.
|
-- Project : JART, Just Another Ray Tracer.
|
-- email : jguarin2002 at gmail.com, j.guarin at javeriana.edu.co
|
-- email : jguarin2002 at gmail.com, j.guarin at javeriana.edu.co
|
|
|
-- This code was entirely written by Julian Andres Guarin Reyes.
|
-- This code was entirely written by Julian Andres Guarin Reyes.
|
-- The following code is licensed under GNU Public License
|
-- The following code is licensed under GNU Public License
|
-- http://www.gnu.org/licenses/gpl-3.0.txt.
|
-- http://www.gnu.org/licenses/gpl-3.0.txt.
|
|
|
-- This file is part of JART (Just Another Ray Tracer).
|
-- 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
|
-- 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
|
-- it under the terms of the GNU General Public License as published by
|
-- the Free Software Foundation, either version 3 of the License, or
|
-- the Free Software Foundation, either version 3 of the License, or
|
-- (at your option) any later version.
|
-- (at your option) any later version.
|
|
|
-- JART (Just Another Ray Tracer) is distributed in the hope that it will be useful,
|
-- 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
|
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
|
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
-- GNU General Public License for more details.
|
-- GNU General Public License for more details.
|
|
|
-- You should have received a copy of the GNU General Public License
|
-- 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/>.
|
-- along with JART (Just Another Ray Tracer). If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
-- This is it!!!!! The following code represents the whole blocks gathered all together.
|
-- This is it!!!!! The following code represents the whole blocks gathered all together.
|
-- This block represents a processing cube. The cube's height is always 3 (floor 0 to floor 2). The cube width
|
-- This block represents a processing cube. The cube's height is always 3 (floor 0 to floor 2). The cube width
|
-- is the number of spheres under intersection test each clock. The cube depth represents the number or rays under
|
-- is the number of spheres under intersection test each clock. The cube depth represents the number or rays under
|
-- intersection test each clock.
|
-- intersection test each clock.
|
|
|
-- Details on the cube outputs interpretation, can be found at BlackBook.pdf
|
-- Details on the cube outputs interpretation, can be found at BlackBook.pdf
|
|
|
|
|
library ieee;
|
library ieee;
|
use ieee.std_logic_1164.all;
|
use ieee.std_logic_1164.all;
|
use work.powerGrid.all;
|
use work.powerGrid.all;
|
|
|
entity gridCube is
|
entity gridCube is
|
generic (
|
generic (
|
-- Depth
|
-- Depth
|
D : integer := 4;
|
D : integer := 4;
|
-- ID width.
|
-- ID width.
|
IDW : integer := 2;
|
IDW : integer := 2;
|
-- Number of Columns.
|
-- Number of Columns.
|
C : integer := 4;
|
C : integer := 4;
|
-- Input rays width.
|
-- Input rays width.
|
W0 : integer := 18;
|
W0 : integer := 18;
|
-- Dot products and spheres constant width
|
-- Dot products and spheres constant width
|
W1 : integer := 32; IDW : integer := 2;
|
W1 : integer := 32; IDW : integer := 2;
|
|
|
);
|
);
|
port (
|
port (
|
-- The usual control signals.
|
-- The usual control signals.
|
clk,rst : in std_logic;
|
clk,rst : in std_logic;
|
|
|
-- Grid, rays and sphere flow through control signals.
|
-- Grid, rays and sphere flow through control signals.
|
pipeOn : in std_logic;
|
pipeOn : in std_logic;
|
-- The same column nxtSphere signal control..... regardless the Cube Depth.
|
-- The same column nxtSphere signal control..... regardless the Cube Depth.
|
nxtSphere : in std_logic_vector (C-1 downto 0);
|
nxtSphere : in std_logic_vector (C-1 downto 0);
|
|
|
-- R-F0
|
-- R-F0
|
-- Input Values.
|
-- Input Values.
|
-- The ray input vector.
|
-- The ray input vector.
|
iRayx: in std_logic_vector (D*W0 - 1 downto 0);
|
iRayx: in std_logic_vector (D*W0 - 1 downto 0);
|
iRayy: in std_logic_vector (D*W0 - 1 downto 0);
|
iRayy: in std_logic_vector (D*W0 - 1 downto 0);
|
iRayz: in std_logic_vector (D*W0 - 1 downto 0);
|
iRayz: in std_logic_vector (D*W0 - 1 downto 0);
|
-- The spheres x position (sphere centers) input vectors.
|
-- The spheres x position (sphere centers) input vectors.
|
iSphrCenterx: in std_logic_vector (C*W0 - 1 downto 0);
|
iSphrCenterx: in std_logic_vector (C*W0 - 1 downto 0);
|
-- The spheres y position (sphere centers) input vectors.
|
-- The spheres y position (sphere centers) input vectors.
|
iSphrCentery: in std_logic_vector (C*W0 - 1 downto 0);
|
iSphrCentery: in std_logic_vector (C*W0 - 1 downto 0);
|
-- The spheres z position (sphere centers) input vectors.
|
-- The spheres z position (sphere centers) input vectors.
|
iSphrCenterz: in std_logic_vector (C*W0 - 1 downto 0);
|
iSphrCenterz: in std_logic_vector (C*W0 - 1 downto 0);
|
-- The spheres x position (sphere centers) output vectors.
|
-- The spheres x position (sphere centers) output vectors.
|
oSphrCenterx: out std_logic_vector (C*W0 - 1 downto 0);
|
oSphrCenterx: out std_logic_vector (C*W0 - 1 downto 0);
|
-- The spheres y positions (sphere centes) output vectors.
|
-- The spheres y positions (sphere centes) output vectors.
|
oSphrCentery: out std_logic_vector (C*W0 - 1 downto 0);
|
oSphrCentery: out std_logic_vector (C*W0 - 1 downto 0);
|
-- The spheres z positions (sphere centers) output vectors.
|
-- The spheres z positions (sphere centers) output vectors.
|
oSphrCenterz: out std_logic_vector (C*W0 - 1 downto 0);
|
oSphrCenterz: out std_logic_vector (C*W0 - 1 downto 0);
|
-- Output Values
|
-- Output Values
|
-- The ray output vector.
|
-- The ray output vector.
|
oRayx: out std_logic_vector (D*W0 - 1 downto 0);
|
oRayx: out std_logic_vector (D*W0 - 1 downto 0);
|
oRayy: out std_logic_vector (D*W0 - 1 downto 0);
|
oRayy: out std_logic_vector (D*W0 - 1 downto 0);
|
oRayz: out std_logic_vector (D*W0 - 1 downto 0);
|
oRayz: out std_logic_vector (D*W0 - 1 downto 0);
|
|
|
-- R-F1
|
-- R-F1
|
-- K Input / Output.
|
-- K Input / Output.
|
kInput : in std_logic_vector (C*W1 - 1 downto 0);
|
kInput : in std_logic_vector (C*W1 - 1 downto 0);
|
kOutput : out std_logic_vector (C*W1 - 1 downto 0)
|
kOutput : out std_logic_vector (C*W1 - 1 downto 0)
|
|
|
--R-F2
|
--R-F2
|
-- Input Values
|
-- Input Values
|
refvd : in std_logic_vector (D*W1-1 downto 0);
|
refvd : in std_logic_vector (D*W1-1 downto 0);
|
selvd : out std_logic_vector (D*W1-1 downto 0);
|
selvd : out std_logic_vector (D*W1-1 downto 0);
|
colid : out std_logic_vector (D*IDW-1 downto 0);
|
colid : out std_logic_vector (D*IDW-1 downto 0);
|
inter : out std_logic_vector (D-1 downto 0)
|
inter : out std_logic_vector (D-1 downto 0)
|
);
|
);
|
end entity;
|
end entity;
|
|
|
architecture rtl of gridCube is
|
architecture rtl of gridCube is
|
|
|
-- Difussion nets for sphere constant and center .
|
-- Difussion nets for sphere constant and center .
|
signal sK : std_logic_vector ((D+1)*C*W1 - 1 downto 0);
|
signal sK : std_logic_vector ((D+1)*C*W1 - 1 downto 0);
|
signal sVx : std_logic_vector ((D+1)*C*W0 - 1 downto 0);
|
signal sVx : std_logic_vector ((D+1)*C*W0 - 1 downto 0);
|
signal sVy : std_logic_vector ((D+1)*C*W0 - 1 downto 0);
|
signal sVy : std_logic_vector ((D+1)*C*W0 - 1 downto 0);
|
signal sVz : std_logic_vector ((D+1)*C*W0 - 1 downto 0);
|
signal sVz : std_logic_vector ((D+1)*C*W0 - 1 downto 0);
|
|
|
|
|
|
|
begin
|
begin
|
|
|
-- External connections : K constant.
|
-- External connections : K constant.
|
sK (C*W1-1 downto 0) <= kInput;
|
sK (C*W1-1 downto 0) <= kInput;
|
kOutput <= sK ((D+1)*C*W1-1 downto D*C*W1-1);
|
kOutput <= sK ((D+1)*C*W1-1 downto D*C*W1-1);
|
|
|
-- External connections : Sphere Center.
|
-- External connections : Sphere Center.
|
sVx (C*W0-1 downto 0) <= iSphereCenterx;
|
sVx (C*W0-1 downto 0) <= iSphereCenterx;
|
sVy (C*W0-1 downto 0) <= iSphereCentery;
|
sVy (C*W0-1 downto 0) <= iSphereCentery;
|
sVz (C*W0-1 downto 0) <= iSphereCenterz;
|
sVz (C*W0-1 downto 0) <= iSphereCenterz;
|
oRayx <= sVx ((D+1)*C*W0-1 downto D*C*W0-1);
|
oRayx <= sVx ((D+1)*C*W0-1 downto D*C*W0-1);
|
oRayy <= sVy ((D+1)*C*W0-1 downto D*C*W0-1);
|
oRayy <= sVy ((D+1)*C*W0-1 downto D*C*W0-1);
|
oRayz <= sVz ((D+1)*C*W0-1 downto D*C*W0-1);
|
oRayz <= sVz ((D+1)*C*W0-1 downto D*C*W0-1);
|
|
|
|
|
gridArray: for i in 0 to D-1 generate
|
gridArray: for i in 0 to D-1 generate
|
|
|
gridn: rayxsphereGrid
|
gridn: rayxsphereGrid
|
generic map (
|
generic map (
|
IDW = IDW,
|
IDW = IDW,
|
C = C,
|
C = C,
|
W0 = W0,
|
W0 = W0,
|
W1 = W1 );
|
W1 = W1 );
|
port map (
|
port map (
|
clk => clk,
|
clk => clk,
|
rst => rst,
|
rst => rst,
|
pipeOn => pipeOn,
|
pipeOn => pipeOn,
|
nxtSphere => nxtSphere,
|
nxtSphere => nxtSphere,
|
iRayx => iRayx ((i+1)*W0-1 downto i*W0),
|
iRayx => iRayx ((i+1)*W0-1 downto i*W0),
|
iRayy => iRayy ((i+1)*W0-1 downto i*W0),
|
iRayy => iRayy ((i+1)*W0-1 downto i*W0),
|
iRayz => iRayz ((i+1)*W0-1 downto i*W0),
|
iRayz => iRayz ((i+1)*W0-1 downto i*W0),
|
iSphrCenterx => sVx((i+1)*C*W0-1 downto i*C*W0),
|
iSphrCenterx => sVx((i+1)*C*W0-1 downto i*C*W0),
|
iSphrCentery => sVy((i+1)*C*W0-1 downto i*C*W0),
|
iSphrCentery => sVy((i+1)*C*W0-1 downto i*C*W0),
|
iSphrCenterz => sVz((i+1)*C*W0-1 downto i*C*W0),
|
iSphrCenterz => sVz((i+1)*C*W0-1 downto i*C*W0),
|
oSphrCenterx => sVx((i+2)*C*W0-1 downto (i+1)*C*W0),
|
oSphrCenterx => sVx((i+2)*C*W0-1 downto (i+1)*C*W0),
|
oSphrCentery => sVy((i+2)*C*W0-1 downto (i+1)*C*W0),
|
oSphrCentery => sVy((i+2)*C*W0-1 downto (i+1)*C*W0),
|
oSphrCenterz => sVz((i+2)*C*W0-1 downto (i+1)*C*W0),
|
oSphrCenterz => sVz((i+2)*C*W0-1 downto (i+1)*C*W0),
|
oRayx => oRayx ((i+1)*W0-1 downto i*W0),
|
oRayx => oRayx ((i+1)*W0-1 downto i*W0),
|
oRayy => oRayy ((i+1)*W0-1 downto i*W0),
|
oRayy => oRayy ((i+1)*W0-1 downto i*W0),
|
oRayz => oRayz ((i+1)*W0-1 downto i*W0),
|
oRayz => oRayz ((i+1)*W0-1 downto i*W0),
|
kInput => sK((i+1)*C*W1-1 downto i*C*W1),
|
kInput => sK((i+1)*C*W1-1 downto i*C*W1),
|
kOutput => sK((i+2)*C*W1-1 downto (i+1)*C*W1),
|
kOutput => sK((i+2)*C*W1-1 downto (i+1)*C*W1),
|
refvd => refvd((i+1)*W1-1 downto i*W1),
|
refvd => refvd((i+1)*W1-1 downto i*W1),
|
selvd => selvd((i+1)*W1-1 downto i*W1),
|
selvd => selvd((i+1)*W1-1 downto i*W1),
|
colid => colid((i+1)*IDW-1 downto i*IDW),
|
colid => colid((i+1)*IDW-1 downto i*IDW),
|
inter => inter(i)
|
inter => inter(i)
|
);
|
);
|
end generate;
|
end generate;
|
|
|
end rtl;
|
end rtl;
|
|
|
