67 lines
2.5 KiB
C
67 lines
2.5 KiB
C
/*
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Copyright (c) 2010 Myles Metzer
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use,
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copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following
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conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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This File contains the timing definitions for the TVout AVR composite video
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generation Library
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*/
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#ifndef VIDEO_TIMING_H
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#define VIDEO_TIMING_H
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#define _CYCLES_PER_US (F_CPU / 1000000)
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#define _TIME_HORZ_SYNC 4.7
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#define _TIME_VIRT_SYNC 58.85
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#define _TIME_ACTIVE 46
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#define _CYCLES_VIRT_SYNC ((_TIME_VIRT_SYNC * _CYCLES_PER_US) - 1)
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#define _CYCLES_HORZ_SYNC ((_TIME_HORZ_SYNC * _CYCLES_PER_US) - 1)
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//Timing settings for NTSC
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#define _NTSC_TIME_SCANLINE 63.55
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#define _NTSC_TIME_OUTPUT_START 12
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#define _NTSC_LINE_FRAME 262
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#define _NTSC_LINE_START_VSYNC 0
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#define _NTSC_LINE_STOP_VSYNC 3
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#define _NTSC_LINE_DISPLAY 216
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#define _NTSC_LINE_MID ((_NTSC_LINE_FRAME - _NTSC_LINE_DISPLAY)/2 + _NTSC_LINE_DISPLAY/2)
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#define _NTSC_CYCLES_SCANLINE ((_NTSC_TIME_SCANLINE * _CYCLES_PER_US) - 1)
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#define _NTSC_CYCLES_OUTPUT_START ((_NTSC_TIME_OUTPUT_START * _CYCLES_PER_US) - 1)
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//Timing settings for PAL
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#define _PAL_TIME_SCANLINE 64
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#define _PAL_TIME_OUTPUT_START 12.5
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#define _PAL_LINE_FRAME 312
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#define _PAL_LINE_START_VSYNC 0
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#define _PAL_LINE_STOP_VSYNC 7
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#define _PAL_LINE_DISPLAY 260
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#define _PAL_LINE_MID ((_PAL_LINE_FRAME - _PAL_LINE_DISPLAY)/2 + _PAL_LINE_DISPLAY/2)
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#define _PAL_CYCLES_SCANLINE ((_PAL_TIME_SCANLINE * _CYCLES_PER_US) - 1)
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#define _PAL_CYCLES_OUTPUT_START ((_PAL_TIME_OUTPUT_START * _CYCLES_PER_US) - 1)
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#endif |