From 8204f06ca7db939310b9fb84c61e3bddc9c404d7 Mon Sep 17 00:00:00 2001
From: Xaymar <info@xaymar.com>
Date: Fri, 8 Aug 2025 01:24:10 +0200
Subject: [PATCH] Host 0x11/0x12: Current effect sample rate and block size

Some hosts can randomly "forget" to send these updates to the effect and that's why we can ask the host for them. Most modern ones though do properly handle all of this.
---
 vst.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/vst.h b/vst.h
index d0cd096..e23f152 100644
--- a/vst.h
+++ b/vst.h
@@ -699,9 +699,27 @@ enum VST_HOST_OPCODE {
 	/** @sa VST_HOST_OPCODE_0F */
 	VST_HOST_OPCODE_EDITOR_RESIZE = 0x0F,
 
+	/** Get the current sample rate the effect should be running at.
+	 *
+	 * @note (VST 2.x) Available from VST 2.0 onwards.
+	 * @sa VST_EFFECT_OPCODE_SET_SAMPLE_RATE
+	 *
+	 * @return The current sample rate in Hertz.
+	 */
 	VST_HOST_OPCODE_10 = 0x10,
+	/** @sa VST_HOST_OPCODE_10 */
+	VST_HOST_OPCODE_GET_SAMPLE_RATE = 0x10,
 
+	/** Get the current block size for the effect.
+	 *
+	 * @note (VST 2.x) Available from VST 2.0 onwards.
+	 * @sa VST_EFFECT_OPCODE_SET_BLOCK_SIZE
+	 *
+	 * @return The current block size in samples.
+	 */
 	VST_HOST_OPCODE_11 = 0x11,
+	/** @sa VST_HOST_OPCODE_11 */
+	VST_HOST_OPCODE_GET_BLOCK_SIZE = 0x11,
 
 	VST_HOST_OPCODE_12 = 0x12,