mirror of https://github.com/smartykit/apple1.git
72 lines
2.0 KiB
C
Executable File
72 lines
2.0 KiB
C
Executable File
/*
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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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#ifndef VIDEO_GEN_H
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#define VIDEO_GEN_H
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#include <avr/interrupt.h>
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#include <avr/io.h>
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#include "spec/video_properties.h"
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#include "spec/hardware_setup.h"
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typedef struct {
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volatile int scanLine;
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volatile unsigned long frames;
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unsigned char start_render;
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// remove me
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int lines_frame;
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uint8_t vres;
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uint8_t hres;
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// remove me
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uint8_t output_delay;
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// combine me with status switch
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char vscale_const;
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// combine me too.
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char vscale;
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// remove me
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char vsync_end;
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uint8_t* screen;
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} TVout_vid;
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extern TVout_vid display;
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extern void (*hbi_hook)();
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extern void (*vbi_hook)();
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void render_setup(uint8_t mode, uint8_t x, uint8_t y, uint8_t *scrnptr);
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void blank_line();
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void active_line();
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void vsync_line();
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void empty();
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// tone generation properties
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extern volatile long remainingToneVsyncs;
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// 6cycles functions
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void render_line6c();
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void render_line5c();
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void render_line4c();
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void render_line3c();
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static void inline wait_until(uint8_t time);
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#endif
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