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minor update

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This commit is contained in:
Blaise Tine
2021-03-20 20:59:11 -04:00
parent 96a03a3edf
commit 8fa78ef059
5 changed files with 67 additions and 59 deletions
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60
hw/rtl/tex_unit/VX_tex_format.v
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@@ -7,48 +7,42 @@ module VX_tex_format #(
input wire [`TEX_FORMAT_BITS-1:0] format,
output wire [`NUM_COLOR_CHANNEL-1:0] color_enable,
output wire [`MAX_COLOR_BITS-1:0] R,
output wire [`MAX_COLOR_BITS-1:0] G,
output wire [`MAX_COLOR_BITS-1:0] B,
output wire [`MAX_COLOR_BITS-1:0] A
output wire [`TEX_COLOR_BITS-1:0] R,
output wire [`TEX_COLOR_BITS-1:0] G,
output wire [`TEX_COLOR_BITS-1:0] B,
output wire [`TEX_COLOR_BITS-1:0] A
);
`UNUSED_PARAM (CORE_ID)
reg [`NUM_COLOR_CHANNEL-1:0] color_enable_r;
reg [`MAX_COLOR_BITS-1:0] R_r;
reg [`MAX_COLOR_BITS-1:0] G_r;
reg [`MAX_COLOR_BITS-1:0] B_r;
reg [`MAX_COLOR_BITS-1:0] A_r;
reg [`TEX_COLOR_BITS-1:0] R_r;
reg [`TEX_COLOR_BITS-1:0] G_r;
reg [`TEX_COLOR_BITS-1:0] B_r;
reg [`TEX_COLOR_BITS-1:0] A_r;
always @(*) begin
case (format)
`R5G6B5:
R_r = `MAX_COLOR_BITS'(texel_data[15:11]);
G_r = `MAX_COLOR_BITS'(texel_data[10:5]);
B_r = `MAX_COLOR_BITS'(texel_data[4:0]);
A_r = {`MAX_COLOR_BITS{1'b0}};
`R5G6B5: begin
R_r = `TEX_COLOR_BITS'(texel_data[15:11]);
G_r = `TEX_COLOR_BITS'(texel_data[10:5]);
B_r = `TEX_COLOR_BITS'(texel_data[4:0]);
A_r = {`TEX_COLOR_BITS{1'b0}};
color_enable_r = 4'b1110;
`R8G8B8:
R_r = `MAX_COLOR_BITS'(texel_data[23:16]);
G_r = `MAX_COLOR_BITS'(texel_data[15:8]);
B_r = `MAX_COLOR_BITS'(texel_data[7:0]);
A_r = {`MAX_COLOR_BITS{1'b0}};
color_enable_r = 4'b1110;
`R8G8B8A8:
R_r = `MAX_COLOR_BITS'(texel_data[31:24]);
G_r = `MAX_COLOR_BITS'(texel_data[23:16]);
B_r = `MAX_COLOR_BITS'(texel_data[15:8]);
A_r = `MAX_COLOR_BITS'(texel_data[7:0]);
color_enable_r = 4'b1111;
default:
R_r = `MAX_COLOR_BITS'(texel_data[23:16]);
G_r = `MAX_COLOR_BITS'(texel_data[15:8]);
B_r = `MAX_COLOR_BITS'(texel_data[7:0]);
A_r = {`MAX_COLOR_BITS{1'b0}};
end
`R8G8B8: begin
R_r = `TEX_COLOR_BITS'(texel_data[23:16]);
G_r = `TEX_COLOR_BITS'(texel_data[15:8]);
B_r = `TEX_COLOR_BITS'(texel_data[7:0]);
A_r = {`TEX_COLOR_BITS{1'b0}};
color_enable_r = 4'b1110;
end
default: begin // `R8G8B8A8:
R_r = `TEX_COLOR_BITS'(texel_data[31:24]);
G_r = `TEX_COLOR_BITS'(texel_data[23:16]);
B_r = `TEX_COLOR_BITS'(texel_data[15:8]);
A_r = `TEX_COLOR_BITS'(texel_data[7:0]);
color_enable_r = 4'b1111;
end
endcase
end