From bc70d192572b84fcf4ee028231c8c33a1e3955e9 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Thu, 16 Nov 2023 15:43:03 -0800
Subject: [PATCH] renderer/metal: set valid sampler properties

---
 src/renderer/metal/api.zig     | 16 ++++++++++++++++
 src/renderer/metal/sampler.zig |  7 +++++++
 2 files changed, 23 insertions(+)

diff --git a/src/renderer/metal/api.zig b/src/renderer/metal/api.zig
index 1c9f175ac..f92489374 100644
--- a/src/renderer/metal/api.zig
+++ b/src/renderer/metal/api.zig
@@ -67,6 +67,22 @@ pub const MTLPurgeableState = enum(c_ulong) {
     empty = 4,
 };
 
+/// https://developer.apple.com/documentation/metal/mtlsamplerminmagfilter?language=objc
+pub const MTLSamplerMinMagFilter = enum(c_ulong) {
+    nearest = 0,
+    linear = 1,
+};
+
+/// https://developer.apple.com/documentation/metal/mtlsampleraddressmode?language=objc
+pub const MTLSamplerAddressMode = enum(c_ulong) {
+    clamp_to_edge = 0,
+    mirror_clamp_to_edge = 1,
+    repeat = 2,
+    mirror_repeat = 3,
+    clamp_to_zero = 4,
+    clamp_to_border_color = 5,
+};
+
 /// https://developer.apple.com/documentation/metal/mtlblendfactor?language=objc
 pub const MTLBlendFactor = enum(c_ulong) {
     zero = 0,
diff --git a/src/renderer/metal/sampler.zig b/src/renderer/metal/sampler.zig
index 5f4d51cfc..c7a04df3a 100644
--- a/src/renderer/metal/sampler.zig
+++ b/src/renderer/metal/sampler.zig
@@ -3,6 +3,8 @@ const Allocator = std.mem.Allocator;
 const assert = std.debug.assert;
 const objc = @import("objc");
 
+const mtl = @import("api.zig");
+
 pub const Sampler = struct {
     sampler: objc.Object,
 
@@ -14,6 +16,11 @@ pub const Sampler = struct {
             break :init id_init;
         };
         defer desc.msgSend(void, objc.sel("release"), .{});
+        desc.setProperty("rAddressMode", @intFromEnum(mtl.MTLSamplerAddressMode.clamp_to_edge));
+        desc.setProperty("sAddressMode", @intFromEnum(mtl.MTLSamplerAddressMode.clamp_to_edge));
+        desc.setProperty("tAddressMode", @intFromEnum(mtl.MTLSamplerAddressMode.clamp_to_edge));
+        desc.setProperty("minFilter", @intFromEnum(mtl.MTLSamplerMinMagFilter.linear));
+        desc.setProperty("magFilter", @intFromEnum(mtl.MTLSamplerMinMagFilter.linear));
 
         const sampler = device.msgSend(
             objc.Object,