Subversion Repositories orsoc_graphics_accelerator

`include "../../../rtl/verilog/gfx/gfx_renderer.v"

`include "../../../rtl/verilog/gfx/gfx_color.v"

module render_bench();

reg clk_i;

reg rst_i;

// Render target information, used for checking out of bounds and stride when writing pixels

reg [31:2] target_base_i;

reg [31:2] zbuffer_base_i;

reg [15:0] target_size_x_i;

reg [15:0] target_size_y_i;

reg [1:0] color_depth_i;

reg [15:0] pixel_x_i;

reg [15:0] pixel_y_i;

reg signed [15:0] pixel_z_i;

reg zbuffer_enable_i;

reg [31:0] color_i;

reg write_i;

wire write_o;

// wire registers connected to the wbm

wire [31:2] render_addr_o;

wire [3:0] render_sel_o;

wire [31:0] render_dat_o;

// TODO add ack signals

wire ack_o;

reg ack_i;

initial begin

  $dumpfile("render.vcd");

  $dumpvars(0,render_bench);

// init values

  clk_i = 1;

  rst_i = 1;

  target_base_i = 0;

  zbuffer_base_i = 64;

  target_size_x_i = 640;

  target_size_y_i = 480;

  color_depth_i = 2'b01;

  pixel_x_i = 4;

  pixel_y_i = 2;

  pixel_z_i = 2;

  zbuffer_enable_i = 0;

  color_i = 0;

  write_i = 0;

  ack_i = 0;

//timing

  #4 rst_i =0;

  #10 write_i = 1;

  #2 write_i = 0;

  #10 write_i = 1;

  zbuffer_enable_i = 1;

  #2 write_i = 0;

  #10 write_i = 1;

  #2 write_i = 0;

// end sim

  #100 $finish;

end

always begin

  #1 clk_i = ~clk_i;

end

always @(posedge clk_i)

begin

    ack_i <= #1 write_o;

end

gfx_renderer render(

.clk_i           (clk_i),

.rst_i           (rst_i),

.target_base_i   (target_base_i),

.zbuffer_base_i  (zbuffer_base_i),

.target_size_x_i (target_size_x_i),

.target_size_y_i (target_size_y_i),

.color_depth_i   (color_depth_i),

.pixel_x_i       (pixel_x_i),

.pixel_y_i       (pixel_y_i),

.pixel_z_i       (pixel_z_i),

.zbuffer_enable_i(zbuffer_enable_i),

.color_i         (color_i),

.render_addr_o   (render_addr_o),

.render_sel_o    (render_sel_o),

.render_dat_o    (render_dat_o),

.ack_o           (ack_o),

.ack_i           (ack_i),

.write_i (write_i),

.write_o (write_o)

);

endmodule