RomanRom2/ossc
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timing optimizations

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marqs committed 2019-10-10 01:00:48 +03:00
1 parent b8c80c7425
commit 8e7236dc00
4 files changed
+6381 -6362
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ip/osd_generator/osd_generator_top.sv
+16 -11
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@@ -50,7 +50,7 @@ reg [31:0] osd_config;
reg [10:0] xpos_osd_area_scaled, xpos_text_scaled;
reg [10:0] ypos_osd_area_scaled, ypos_text_scaled;
reg [7:0] x_ptr[2:5], y_ptr[2:5] /* synthesis ramstyle = "logic" */;
reg osd_act_pp[2:5],osd_text_act_pp[2:5];
reg osd_text_act_pp[2:5], osd_act_pp[3:5];
reg [14:0] to_ctr, to_ctr_ms;
wire render_enable = osd_config[0];
@@ -97,19 +97,21 @@ char_rom char_rom_inst (
);
// Pipeline structure
// | 1 | 2 | 3 | 4 | 5 | 6 |
// |-------------|------------|----------|---------|---------|------------|
// | xpos_scaled | x_ptr | x_ptr | x_ptr | x_ptr | |
// | ypos_scaled | y_ptr | y_ptr | y_ptr | y_ptr | |
// | | osd_act | osd_act | osd_act | osd_act | osd_enable |
// | | char_idx | char_idx | CBUF | CBUF | osd_color |
// | 0 | 1 | 2 | 3 | 4 | 5 |
// |----------|----------|---------|---------|---------|--------|
// > POS_TEXT | POS_AREA | | | | |
// > | PTR | PTR | PTR | PTR | |
// > | ENABLE | ENABLE | ENABLE | ENABLE | ENABLE |
// > | INDEX | INDEX | | | |
// > | | | CHARROM | CHARROM | COLOR |
integer idx, pp_idx;
always @(posedge vclk) begin
xpos_osd_area_scaled <= xpos_scaled_w + 3'h4;
ypos_osd_area_scaled <= ypos_scaled_w + 3'h4;
xpos_text_scaled <= xpos_scaled_w;
ypos_text_scaled <= ypos_scaled_w;
xpos_osd_area_scaled <= xpos_text_scaled + 3'h4;
ypos_osd_area_scaled <= ypos_text_scaled + 3'h4;
x_ptr[2] <= xpos_text_scaled[7:0];
y_ptr[2] <= ypos_text_scaled[7:0];
for(pp_idx = 3; pp_idx <= 5; pp_idx = pp_idx+1) begin
@@ -117,13 +119,16 @@ always @(posedge vclk) begin
y_ptr[pp_idx] <= y_ptr[pp_idx-1];
end
osd_act_pp[2] <= render_enable & (menu_active || (to_ctr_ms > 0)) & ((xpos_osd_area_scaled < 8*(CHAR_COLS+1)) && (ypos_osd_area_scaled < 8*(CHAR_ROWS+1)));
osd_text_act_pp[2] <= render_enable & (menu_active || (to_ctr_ms > 0)) & ((xpos_text_scaled < 8*CHAR_COLS) && (ypos_text_scaled < 8*CHAR_ROWS));
for(pp_idx = 3; pp_idx <= 5; pp_idx = pp_idx+1) begin
osd_act_pp[pp_idx] <= osd_act_pp[pp_idx-1];
osd_text_act_pp[pp_idx] <= osd_text_act_pp[pp_idx-1];
end
osd_act_pp[3] <= render_enable & (menu_active || (to_ctr_ms > 0)) & ((xpos_osd_area_scaled < 8*(CHAR_COLS+1)) && (ypos_osd_area_scaled < 8*(CHAR_ROWS+1)));
for(pp_idx = 4; pp_idx <= 5; pp_idx = pp_idx+1) begin
osd_act_pp[pp_idx] <= osd_act_pp[pp_idx-1];
end
osd_enable <= osd_act_pp[5];
osd_color = osd_text_act_pp[5] ? char_data[y_ptr[5]][x_ptr[5]] : 1'b0;
end