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- vga_frontend* used wrong raster coords (y was swapped) - fixed

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git-svn-id: http://moon:8086/svn/vhdl/trunk@344 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
jens
2009-02-13 08:51:41 +00:00
parent 2987754b98
commit 7d818d0db4
2 changed files with 16 additions and 30 deletions
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lib/VGA_ctrl/src/vga_frontend.vhd
+8 -15
View File
@@ -321,26 +321,19 @@ read_counter:
pixel_counter:
process(CLK_I)
variable pixel_cntx : natural range 0 to tsvga.ts_h.ncyc_scan-1;
variable pixel_cnty : natural range 0 to tsvga.ts_h.ncyc_scan*(tsvga.ts_v.ncyc_scan-1);
variable pixel_cnt : natural range 0 to MAX_REQUEST_CNT-1;
begin
if rising_edge(CLK_I) then
if pixel_cnt_rst = '1' then
pixel_cntx := 0;
pixel_cnty := tsvga.ts_h.ncyc_scan*(tsvga.ts_v.ncyc_scan-1);
pixel_cnt := 0;
elsif request_cnt_en = '1' and SRDY_I = '1' then
if pixel_cntx /= tsvga.ts_h.ncyc_scan-1 then
pixel_cntx := pixel_cntx + 1;
if pixel_cnt /= MAX_REQUEST_CNT-1 then
pixel_cnt := pixel_cnt + 1;
else
pixel_cntx := 0;
if pixel_cnty /= 0 then
pixel_cnty := pixel_cnty - tsvga.ts_h.ncyc_scan;
else
pixel_cnty := tsvga.ts_h.ncyc_scan*(tsvga.ts_v.ncyc_scan-1);
end if;
end if;
end if;
ADDR_O <= vga_mem_offset + (to_unsigned(pixel_cntx, 30) & "00") + (to_unsigned(pixel_cnty, 30) & "00");
pixel_cnt := 0;
end if;
end if;
ADDR_O <= vga_mem_offset + (to_unsigned(pixel_cnt, 30) & "00");
end if;
end process;
lib/VGA_ctrl/src/vga_frontend64.vhd
+8 -15
View File
@@ -325,26 +325,19 @@ read_counter:
pixel_counter:
process(CLK_I)
variable pixel_cntx : natural range 0 to tsvga.ts_h.ncyc_scan/2-1;
variable pixel_cnty : natural range 0 to tsvga.ts_h.ncyc_scan*(tsvga.ts_v.ncyc_scan-1);
variable pixel_cnt : natural range 0 to MAX_REQUEST_CNT/2-1;
begin
if rising_edge(CLK_I) then
if pixel_cnt_rst = '1' then
pixel_cntx := 0;
pixel_cnty := tsvga.ts_h.ncyc_scan*(tsvga.ts_v.ncyc_scan-1);
pixel_cnt := 0;
elsif request_cnt_en = '1' and SRDY_I = '1' then
if pixel_cntx /= tsvga.ts_h.ncyc_scan/2-1 then
pixel_cntx := pixel_cntx + 1;
if pixel_cnt /= MAX_REQUEST_CNT/2-1 then
pixel_cnt := pixel_cnt + 1;
else
pixel_cntx := 0;
if pixel_cnty /= 0 then
pixel_cnty := pixel_cnty - tsvga.ts_h.ncyc_scan;
else
pixel_cnty := tsvga.ts_h.ncyc_scan*(tsvga.ts_v.ncyc_scan-1);
end if;
end if;
end if;
ADDR_O <= vga_mem_offset + (to_unsigned(pixel_cntx, 29) & "000") + (to_unsigned(pixel_cnty, 30) & "00");
pixel_cnt := 0;
end if;
end if;
ADDR_O <= vga_mem_offset + (to_unsigned(pixel_cnt, 29) & "000");
end if;
end process;