rtl/gfx: remove gfx_{perspective{,_flow}, fp_inv}

1 files changed, 0 insertions, 69 deletions

diff --git a/rtl/gfx/gfx_perspective.sv b/rtl/gfx/gfx_perspective.sv
deleted file mode 100644
index 6af1724..0000000
--- a/rtl/gfx/gfx_perspective.sv
+++ /dev/null
@@ -1,69 +0,0 @@
-`include "gfx/gfx_defs.sv"
-
-module gfx_perspective
-(
-	input  logic clk,
-
-	input  attr4 clip_attr,
-	input  logic stall,
-	             in_start,
-	             out_start,
-
-	output attr4 ndc_attr,
-	output fp    w_inv
-);
-
-	fp selected_w_inv, next_w_inv, vertex_w_inv, w_inv_pipes[`FP_MUL_STAGES];
-	vec4 in_pipes[`FP_INV_STAGES], div_q;
-
-	assign w_inv = w_inv_pipes[`FP_MUL_STAGES - 1];
-	assign selected_w_inv = in_start ? next_w_inv : vertex_w_inv;
-
-	gfx_fp_inv inv
-	(
-		.a(clip_attr.w),
-		.q(next_w_inv),
-		.*
-	);
-
-	genvar i;
-	generate
-		for (i = 0; i < `FLOATS_PER_VEC; ++i) begin: divs
-			gfx_fp_mul div
-			(
-				.a(in_pipes[`FP_INV_STAGES - 1][i]),
-				.b(selected_w_inv),
-				.q(div_q[i]),
-				.*
-			);
-		end
-
-		for (i = 1; i < `FP_INV_STAGES; ++i) begin: in
-			always_ff @(posedge clk)
-				if (!stall)
-					in_pipes[i] <= in_pipes[i - 1];
-		end
-
-		for (i = 1; i < `FP_MUL_STAGES; ++i) begin: out
-			always_ff @(posedge clk)
-				if (!stall)
-					w_inv_pipes[i] <= w_inv_pipes[i - 1];
-		end
-	endgenerate
-
-	always_comb begin
-		ndc_attr = div_q;
-		if (out_start)
-			ndc_attr.w = `FP_UNIT;
-	end
-
-	always_ff @(posedge clk)
-		if (!stall) begin
-			if (in_start)
-				vertex_w_inv <= next_w_inv;
-
-			in_pipes[0] <= clip_attr;
-			w_inv_pipes[0] <= selected_w_inv;
-		end
-
-endmodule