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R-type
40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
#ifndef COLOURS_NTSC_H_
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#define COLOURS_NTSC_H_
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#include "config.h"
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#include "colours.h"
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#include "colours_external.h"
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#ifndef M_PI
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# define M_PI 3.141592653589793
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#endif
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/* NTSC palette's current setup - generic controls. */
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extern Colours_setup_t COLOURS_NTSC_setup;
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/* External NTSC palette. */
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extern COLOURS_EXTERNAL_t COLOURS_NTSC_external;
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/* Updates the NTSC palette - should be called after changing palette setup
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or loading/unloading an external palette. */
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void COLOURS_NTSC_Update(int colourtable[256]);
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/* Restores default values for NTSC-specific colour controls.
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Colours_NTSC_Update should be called afterwards to apply changes. */
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void COLOURS_NTSC_RestoreDefaults(void);
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/* Writes the NTSC palette (internal or external) as YIQ triplets in
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YIQ_TABLE. START_ANGLE defines the phase shift of chroma #1. This function
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is to be used exclusively by the NTSC Filter module. */
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void COLOURS_NTSC_GetYIQ(double yiq_table[768], const double start_angle);
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/* Read/write to configuration file. */
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int COLOURS_NTSC_ReadConfig(char *option, char *ptr);
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void COLOURS_NTSC_WriteConfig(FILE *fp);
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/* NTSC Colours initialisation and processing of command-line arguments. */
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int COLOURS_NTSC_Initialise(int *argc, char *argv[]);
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/* Function for getting the NTSC-specific color preset. */
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Colours_preset_t COLOURS_NTSC_GetPreset(void);
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#endif /* COLOURS_NTSC_H_ */
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