56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
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#pragma once
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#include "../plugin.h"
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// This extension indicates the number of voices the synthesizer has.
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// It is useful for the host when performing polyphonic modulations,
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// because the host needs its own voice management and should try to follow
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// what the plugin is doing:
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// - make the host's voice pool coherent with what the plugin has
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// - turn the host's voice management to mono when the plugin is mono
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static CLAP_CONSTEXPR const char CLAP_EXT_VOICE_INFO[] = "clap.voice-info";
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum {
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// Allows the host to send overlapping NOTE_ON events.
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// The plugin will then rely upon the note_id to distinguish between them.
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CLAP_VOICE_INFO_SUPPORTS_OVERLAPPING_NOTES = 1 << 0,
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};
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typedef struct clap_voice_info {
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// voice_count is the current number of voices that the patch can use
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// voice_capacity is the number of voices allocated voices
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// voice_count should not be confused with the number of active voices.
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//
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// 1 <= voice_count <= voice_capacity
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//
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// For example, a synth can have a capacity of 8 voices, but be configured
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// to only use 4 voices: {count: 4, capacity: 8}.
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//
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// If the voice_count is 1, then the synth is working in mono and the host
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// can decide to only use global modulation mapping.
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uint32_t voice_count;
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uint32_t voice_capacity;
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uint64_t flags;
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} clap_voice_info_t;
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typedef struct clap_plugin_voice_info {
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// gets the voice info, returns true on success
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// [main-thread && active]
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bool(CLAP_ABI *get)(const clap_plugin_t *plugin, clap_voice_info_t *info);
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} clap_plugin_voice_info_t;
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typedef struct clap_host_voice_info {
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// informs the host that the voice info has changed
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// [main-thread]
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void(CLAP_ABI *changed)(const clap_host_t *host);
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} clap_host_voice_info_t;
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#ifdef __cplusplus
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}
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#endif
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