platform/wavelet3d: implement rasterizer

1 files changed, 24 insertions, 0 deletions

diff --git a/platform/wavelet3d/gfx_pipes.sv b/platform/wavelet3d/gfx_pipes.sv
new file mode 100644
index 0000000..2fa875a
--- /dev/null
+++ b/platform/wavelet3d/gfx_pipes.sv
@@ -0,0 +1,24 @@
+module gfx_pipes
+#(int WIDTH=0, int DEPTH=0)
+(
+	input  logic              clk,
+
+	input  logic[WIDTH - 1:0] in,
+	input  logic              stall,
+
+	output logic[WIDTH - 1:0] out
+);
+
+	logic[WIDTH - 1:0] pipes[DEPTH];
+
+	assign out = pipes[DEPTH - 1];
+
+	always_ff @(posedge clk)
+		if (~stall) begin
+			pipes[0] <= in;
+
+			for (integer i = 1; i < DEPTH; ++i)
+				pipes[i] <= pipes[i - 1];
+		end
+
+endmodule