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Update sys.

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This commit is contained in:
sorgelig
2019-03-07 20:55:56 +08:00
parent defa3b88ca
commit 55487f158b
40 changed files with 4945 additions and 8940 deletions
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130
sys/osd.v
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@ -13,7 +13,8 @@ module osd
input [23:0] din,
output [23:0] dout,
input de_in,
output reg de_out
output reg de_out,
output reg osd_status
);
parameter OSD_COLOR = 3'd4;
@ -23,21 +24,24 @@ parameter OSD_Y_OFFSET = 12'd0;
localparam OSD_WIDTH = 12'd256;
localparam OSD_HEIGHT = 12'd64;
reg osd_enable;
(* ramstyle = "no_rw_check" *) reg [7:0] osd_buffer[4096];
reg osd_enable;
reg [7:0] osd_buffer[4096];
reg highres = 0;
reg info = 0;
reg [8:0] infoh;
reg [8:0] infow;
reg [11:0] infox;
reg [21:0] infoy;
reg [21:0] hrheight;
always@(posedge clk_sys) begin
reg [11:0] bcnt;
reg [7:0] cmd;
reg has_cmd;
reg old_strobe;
reg highres = 0;
hrheight <= info ? infoh : (OSD_HEIGHT<<highres);
old_strobe <= io_strobe;
@ -53,9 +57,9 @@ always@(posedge clk_sys) begin
cmd <= io_din[7:0];
// command 0x40: OSDCMDENABLE, OSDCMDDISABLE
if(io_din[7:4] == 4) begin
if(!io_din[0]) highres <= 0;
info <= io_din[2];
bcnt <= 0;
if(!io_din[0]) {osd_status,highres} <= 0;
else {osd_status,info} <= {~io_din[2],io_din[2]};
bcnt <= 0;
end
// command 0x20: OSDCMDWRITE
if(io_din[7:4] == 2) begin
@ -101,98 +105,90 @@ always @(negedge clk_video) begin
end
end
reg [23:0] h_cnt;
reg [21:0] v_cnt;
reg [21:0] dsp_width;
reg [21:0] dsp_height;
reg [7:0] osd_byte;
reg [21:0] osd_vcnt;
reg [21:0] fheight;
reg [21:0] finfoy;
wire [21:0] hrheight = info ? infoh : (OSD_HEIGHT<<highres);
reg [2:0] osd_de;
reg osd_pixel;
always @(posedge clk_video) begin
reg deD;
reg [1:0] osd_div;
reg [1:0] multiscan;
reg deD;
reg [1:0] osd_div;
reg [1:0] multiscan;
reg [7:0] osd_byte;
reg [23:0] h_cnt;
reg [21:0] v_cnt;
reg [21:0] dsp_width;
reg [21:0] osd_vcnt;
reg [21:0] h_osd_start;
reg [21:0] v_osd_start;
reg [21:0] osd_hcnt;
reg osd_de1,osd_de2;
reg [1:0] osd_en;
if(ce_pix) begin
deD <= de_in;
if(~&h_cnt) h_cnt <= h_cnt + 1'd1;
if(~&osd_hcnt) osd_hcnt <= osd_hcnt + 1'd1;
if (h_cnt == h_osd_start) begin
osd_de[0] <= osd_en[1] && hrheight && (osd_vcnt < hrheight);
osd_hcnt <= 0;
end
if (osd_hcnt+1 == (info ? infow : OSD_WIDTH)) osd_de[0] <= 0;
// falling edge of de
if(!de_in && deD) dsp_width <= h_cnt[21:0];
// rising edge of de
if(de_in && !deD) begin
h_cnt <= 0;
v_cnt <= v_cnt + 1'd1;
h_osd_start <= info ? infox : (((dsp_width - OSD_WIDTH)>>1) + OSD_X_OFFSET - 2'd2);
if(h_cnt > {dsp_width, 2'b00}) begin
v_cnt <= 0;
dsp_height <= v_cnt;
if(osd_enable) begin
if(v_cnt<320) begin
multiscan <= 0;
fheight <= hrheight;
finfoy <= infoy;
end
else if(v_cnt<640) begin
multiscan <= 1;
fheight <= hrheight << 1;
finfoy <= infoy << 1;
end
else if(v_cnt<960) begin
multiscan <= 2;
fheight <= hrheight + (hrheight<<1);
finfoy <= infoy + (infoy << 1);
end
else begin
multiscan <= 3;
fheight <= hrheight << 2;
finfoy <= infoy << 2;
end
osd_en <= (osd_en << 1) | osd_enable;
if(~osd_enable) osd_en <= 0;
if(v_cnt<320) begin
multiscan <= 0;
v_osd_start <= info ? infoy : (((v_cnt-hrheight)>>1) + OSD_Y_OFFSET);
end
else if(v_cnt<640) begin
multiscan <= 1;
v_osd_start <= info ? (infoy<<1) : (((v_cnt-(hrheight<<1))>>1) + OSD_Y_OFFSET);
end
else if(v_cnt<960) begin
multiscan <= 2;
v_osd_start <= info ? (infoy + (infoy << 1)) : (((v_cnt-(hrheight + (hrheight<<1)))>>1) + OSD_Y_OFFSET);
end
else begin
fheight <= 0;
multiscan <= 3;
v_osd_start <= info ? (infoy<<2) : (((v_cnt-(hrheight<<2))>>1) + OSD_Y_OFFSET);
end
end
h_cnt <= 0;
osd_div <= osd_div + 1'd1;
if(osd_div == multiscan) begin
osd_div <= 0;
osd_vcnt <= osd_vcnt + 1'd1;
if(~&osd_vcnt) osd_vcnt <= osd_vcnt + 1'd1;
end
if(v_osd_start == (v_cnt+1'b1)) {osd_div, osd_vcnt} <= 0;
end
osd_byte <= osd_buffer[{osd_vcnt[6:3], osd_hcnt[7:0]}];
osd_byte <= osd_buffer[{osd_vcnt[6:3], osd_hcnt[7:0]}];
osd_pixel <= osd_byte[osd_vcnt[2:0]];
osd_de[2:1] <= osd_de[1:0];
end
end
// area in which OSD is being displayed
wire [21:0] h_osd_start = info ? infox : ((dsp_width - OSD_WIDTH)>>1) + OSD_X_OFFSET;
wire [21:0] h_osd_end = info ? (h_osd_start + infow) : (h_osd_start + OSD_WIDTH);
wire [21:0] v_osd_start = info ? finfoy : ((dsp_height- fheight)>>1) + OSD_Y_OFFSET;
wire [21:0] v_osd_end = v_osd_start + fheight;
wire [21:0] osd_hcnt = h_cnt[21:0] - h_osd_start + 1'd1;
wire osd_de = osd_enable && fheight &&
(h_cnt >= h_osd_start) && (h_cnt < h_osd_end) &&
(v_cnt >= v_osd_start) && (v_cnt < v_osd_end);
wire osd_pixel = osd_byte[osd_vcnt[2:0]];
reg [23:0] rdout;
assign dout = rdout;
always @(posedge clk_video) begin
rdout <= !osd_de ? din : {{osd_pixel, osd_pixel, OSD_COLOR[2], din[23:19]},
{osd_pixel, osd_pixel, OSD_COLOR[1], din[15:11]},
{osd_pixel, osd_pixel, OSD_COLOR[0], din[7:3]}};
rdout <= ~osd_de[2] ? din : {{osd_pixel, osd_pixel, OSD_COLOR[2], din[23:19]},
{osd_pixel, osd_pixel, OSD_COLOR[1], din[15:11]},
{osd_pixel, osd_pixel, OSD_COLOR[0], din[7:3]}};
de_out <= de_in;
end