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bilinear fixes + refactoring

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This commit is contained in:
Blaise Tine
2021-03-31 23:30:36 -04:00
parent 99ca04ce8c
commit fa2d84831e
7 changed files with 106 additions and 223 deletions
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60
hw/rtl/tex_unit/VX_tex_sampler.v
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@@ -39,37 +39,47 @@ module VX_tex_sampler #(
for (genvar i = 0; i < `NUM_THREADS; i++) begin
wire [31:0] req_data_bilerp;
wire [3:0][63:0] formatted_data;
wire [31:0] formatted_pt_data;
wire [`NUM_COLOR_CHANNEL-1:0] color_enable;
wire [3:0][31:0] fmt_texels;
wire [31:0] texel_ul, texel_uh, texel_v;
VX_tex_format #(
.CORE_ID (CORE_ID),
.NUM_TEXELS (4)
) tex_format (
.texel_data (req_texels[i]),
.format (req_format),
wire [`BLEND_FRAC-1:0] blend_u = req_u[i][`BLEND_FRAC-1:0];
wire [`BLEND_FRAC-1:0] blend_v = req_v[i][`BLEND_FRAC-1:0];
.color_enable (color_enable),
.formatted_lerp_texel(formatted_data),
.formatted_pt_texel(formatted_pt_data)
for (genvar j = 0; j < 4; j++) begin
VX_tex_format #(
.CORE_ID (CORE_ID)
) tex_format (
.format (req_format),
.texel_in (req_texels[i][j]),
.texel_out (fmt_texels[j])
);
end
VX_tex_lerp #(
) tex_lerp_ul (
.blend (blend_u),
.in1 (fmt_texels[0]),
.in2 (fmt_texels[1]),
.out (texel_ul)
);
VX_tex_bilerp #(
.CORE_ID (CORE_ID)
) tex_bilerp (
.blendU (req_u[i][`BLEND_FRAC_64-1:0]),
.blendV (req_v[i][`BLEND_FRAC_64-1:0]),
VX_tex_lerp #(
) tex_lerp_uh (
.blend (blend_u),
.in1 (fmt_texels[2]),
.in2 (fmt_texels[3]),
.out (texel_uh)
);
.color_enable (color_enable),
.texels (formatted_data),
.sampled_data (req_data_bilerp)
);
assign req_data[i] = (req_filter == `TEX_FILTER_BITS'(0)) ? formatted_pt_data : req_data_bilerp;
VX_tex_lerp #(
) tex_lerp_v (
.blend (blend_v),
.in1 (texel_ul),
.in2 (texel_uh),
.out (texel_v)
);
assign req_data[i] = req_filter ? texel_v : fmt_texels[0];
end
assign stall_out = rsp_valid && ~rsp_ready;