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bab85e713b
Commit Graph

51 Commits

Author SHA1 Message Date
Russell Harmon
bab85e713b Increase max V. Backporch value from 63 to 236 
This change allows highly letterboxed content (e.g. the PSP's 480x272
picture in a 720x480 frame) to be "zoomed" to a full screen picture by
treating the letterbox as horizontal and vertical backporch.

Co-authored-by: Chris Lockfort <clockfort@gmail.com>
 2020-04-07 12:51:36 -07:00
marqs
85c295c5e2 make pll_reconfig more robust 2019-10-12 22:56:10 +03:00
marqs
9feb96888b fix PLL reference clock switchover logic 2019-10-09 23:58:55 +03:00
marqs
ba4614a4f8 correct even/odd field naming 2019-10-08 01:07:25 +03:00
marqs
b22365af20 add timeout to pll_reconfig and update postprocess pipeline diagram 2019-10-07 23:20:44 +03:00
marqs
3a12592c53 fix linebuf read address timing bottleneck 2019-10-07 01:25:33 +03:00
marqs
9d496383c3 optimize clock network 
* replace all clock muxes with a single cycloneive_clkctrl to minimize skew
* use a single dynamically configured PLL to comply with cycloneive_clkctrl
 2019-10-06 23:54:32 +03:00
marqs
6266976114 first OSD implementation 2019-10-03 02:03:43 +03:00
marqs
aa43991534 add mask color option 2019-09-30 19:31:05 +03:00
marqs
5e0277fb48 add Panasonic hack for improving line count tolerance with line2x 2019-07-01 19:15:57 +03:00
marqs
9e81fb5922 Scanline updates and fixes 
* Enable overlay pattern customization
* Fix non-alternating mode with line4x interlace sources
* Add alternate interval option for pre-linedoubled sources
 2019-03-23 00:09:46 +02:00
paulb-nl
f276cda190 Add support for GBI 360p 2018-10-13 17:33:10 +02:00
marqs
22e49300df fix line2x reverse LPF trigger 2018-04-18 23:14:24 +03:00
marqs
70ab55c1fa fix optimized mode mask & position offsets 2018-04-15 23:41:26 +03:00
marqs
37650ca22b misc improvements 
* add character LCD backlight timeout option
* increase h.mask range
* show accurate (fpga-calculated) timings on infoscreen
 2018-03-28 20:09:40 +03:00
marqs
9ad696dbc3 optimize away one pp stage and unify code formatting 2018-03-12 01:25:23 +02:00
borti4938
852054cdd0 finer granulated steps for hybrid sl settings 2018-03-07 10:21:18 +01:00
borti4938
985aeb1a93 use explicite ramstyle for post-processing pipeline to keep registers in logic (as suggested in pull-request #21 comments) 2018-03-07 09:45:27 +01:00
borti4938
45ca4e9268 undo changes as suggested in pull-request #21 comments 2018-03-07 09:43:37 +01:00
borti4938
0828addc83 Merge branch 'release' of https://github.com/marqs85/ossc into upstream 2018-03-07 08:29:49 +01:00
marqs
0ab31b30b4 simplify timing constraints 2018-03-07 09:21:19 +02:00
borti4938
209130b167 misc updates: 
- integrate mask and border generation more deeply into the post processing chain
- delay RLPF by one PP stage (reduce logic length after large mux)
- synthesise a registers after several adder logics
 2018-03-06 13:08:20 +01:00
borti4938
670f515141 various post processing pipeline updates: 
- increase number of pipeline stages for scanline generation
- alternative hybrid strength implementation
- add missing file declaration in qsf
 2018-03-06 09:36:21 +01:00
borti4938
b10d7f3762 SL Multiplication: 
- Hybrid value based on Y (Y calculated according to YCoCg appr.)
- Use 8bit input as p-factor
 2018-03-06 09:34:12 +01:00
borti4938
0b51fd7758 - resolve conflicts from merge 
- use hybrid contrast for both sl generation methods: multiplication and linear
 2018-03-06 09:32:02 +01:00
borti4938
1a405c1e2e Merge branch 'scanline_contrast' of https://github.com/paulb-nl/ossc into upstream 
# Conflicts:
#	rtl/scanconverter.v
#	software/sys_controller/ossc/av_controller.c
 2018-03-06 09:30:22 +01:00
paulb-nl
990bc1563e Add Scanline contrast 
Reduce scanline strength for bright pixels
 2018-02-24 21:56:18 +01:00
borti4938
500a22f316 small simplification on reverse lpf implementation 2018-02-22 13:45:19 +01:00
borti4938
5249d313d8 scanlines generation via multiplication 2018-02-22 08:11:26 +01:00
marqs
a24d6b0e3a Update latency tester 
* Enable operation with all sources
* Measure strobe length on low-persistence displays
 2017-10-28 12:10:54 +03:00
marqs
817012e23e Fix Line2x RLPF trigger position 2017-10-22 22:32:13 +03:00
marqs
4b21a354b4 Fix and optimize reverse lpf activation 2017-10-12 02:31:19 +03:00
paulb-nl
ac16008076 Add reverse LPF feature 
reverse LPF can be used to mostly reverse the blur on pre 1-CHIP SNES.
For best results use 256x240 optimized mode.
 2017-09-27 22:43:26 +02:00
marqs
9d14cc776e Misc small fixes and improvements 
* Disable 480p scanlines in auto mode
* Remove inoperable 3x/4x processing modes from 1080i list
* Add 640x512 mode to 480p group and limit 480p sampler option to 525-line modes
* Fix occasional pixel repetion issue after HDMI<->DVI TX switch
* Add "Allow upsample2x" option
* Add comments to some unclear sections
 2017-08-10 00:06:35 +03:00
marqs
2aee3294e3 Fix HDTV mode parameters 2017-05-30 21:16:03 +03:00
marqs
2577470abe Clean up TX setup code and add compatibility options 2017-05-29 20:43:24 +03:00
marqs
4f36278cb7 Sync processing rewritten and some issues fixed 
* add 480i/576i line3x/4x
* clean up RTL and SDC
* update AVI infoframe properly
* add HDMI IT content option
 2017-05-18 23:36:37 +03:00
marqs
01b5fe20ee Sync and masking improvements 
* detect VSM=1 properly
* increase mask brightness
* add L2 optimized modes
* fix internal vsync alignment
 2017-05-18 23:36:37 +03:00
marqs
2c934c9dd0 Fix line3x 4:3 mode and VGA interlace detection 2017-02-09 23:14:24 +02:00
marqs
6e043ef577 Improve input mode handling 
* New options and better compatibility for Line5x
* Add support for 960i and 1080i
* Make TVP HPLL2x option user-selectable
 2017-02-07 23:04:30 +02:00
marqs
3b19b2843c Preliminary Line5x implementation 2017-01-29 13:02:12 +02:00
marqs
d41c7522a0 Misc updates 
* Fix mask placement and make its brightness adjustable
* Line4x
 2017-01-24 00:18:15 +02:00
marqs
434186d64e Improve lo-res mode processing features 
* workaround for phase shift issue on optimized modes
* add hscale option for 256x240 opt Line3x mode
* distribute video modes to groups and allow passthru for all modes
 2017-01-23 00:56:17 +02:00
marqs
d77c293b70 * Clean up some FPGA code 
* Wrap sampling phase setting
* Enable hal.enable_lightweight_device_driver_api to reduce CPU code size
 2016-12-31 14:18:21 +02:00
marqs
79f215d41e Minor fixes. 2016-12-27 11:16:08 +02:00
marqs
827df7930f * L3 optimized mode scanlines fixed 
* Advanced timing tweaker implemented
 2016-08-16 22:45:23 +03:00
marqs
a488422089 * Fix scanline rendering issues 
* Add initial input and SDTV sync glitch filter settings
* Modify input initialization logic
* Fix debug build warnings
 2016-08-14 18:57:50 +03:00
marqs
c8b542b917 * 480p/576p line2x 
* 480i/576i passthrough
* alternating scanlines for interlaced material
 2016-07-09 23:12:35 +03:00
marqs
c83653c880 Release 0.69 
* Improved remote control handling code
* Fixed occasional mode change loop when switching to a non-interlace mode utilizing odd-field sync signal
* Fixed randomly missing blue channel at power-on when using DVI output mode
* Added H-PLL coast options
* Finer tuning range for scanline strength and mask
 2016-04-15 22:05:53 +03:00
marqs
f502b2e46c Release 0.67. 
- Code cleanup
- Some project files added
- PAL linetriple added
- FPGA PLL parameters optimized
- Reduced jitter on low video clock sources
 2016-03-27 23:09:31 +03:00