diff --git a/MIGRATION-ABI2.md b/MIGRATION-ABI2.md
index f9cb0ee..c255977 100644
--- a/MIGRATION-ABI2.md
+++ b/MIGRATION-ABI2.md
@@ -34,7 +34,7 @@ The following changes are applicable if `LIBRA_RUNTIME_VULKAN` is defined.
 * The `image` and `out` parameters of `libra_vk_filter_chain_frame` has changed from `libra_source_image_vk_t` and `libra_output_image_vk_t`, to `libra_image_vk_t`.
 * In `libra_vk_filter_chain_frame`, the position of the `viewport` parameter has moved to after the `out` parameter, and its type has changed from `libra_viewport_t` to `libra_viewport_t *`, which is allowed to be `NULL`.
   See [`libra_viewport_t` changes](#libra_viewport_t-changes) for more details.
-* The `chain` parameter of `libra_vk_filter_chain_get_param` has been made `const` [^1].
+* The `chain` parameter of `libra_vk_filter_chain_get_param` has been made `const`.
 * It is always thread safe to call `libra_vk_filter_chain_set_param` from any thread [^1].
 
 ## `LIBRA_RUNTIME_OPENGL` changes
@@ -49,7 +49,7 @@ The following changes are applicable if `LIBRA_RUNTIME_METAL` is defined.
   * The `fbo` field previously in `libra_output_image_gl_t` is no longer necessary. librashader will now internally manage a framebuffer object to write to the provided texture.
 * In `libra_gl_filter_chain_frame`, the position of the `viewport` parameter has moved to after the `out` parameter, and its type has changed from `libra_viewport_t` to `libra_viewport_t *`, which is allowed to be `NULL`.
   See [`libra_viewport_t` changes](#libra_viewport_t-changes) for more details.
-* The `chain` parameter of `libra_gl_filter_chain_get_param` has been made `const` [^1].
+* The `chain` parameter of `libra_gl_filter_chain_get_param` has been made `const`.
 * It is always thread safe to call `libra_gl_filter_chain_set_param` from any thread [^1].
 
 ## `LIBRA_RUNTIME_D3D11` changes
@@ -60,7 +60,7 @@ The following changes are applicable if `LIBRA_RUNTIME_D3D11` is defined.
 * The `libra_source_image_d3d11_t` struct has been removed.
 * In `libra_d3d11_filter_chain_frame`, the position of the `viewport` parameter has moved to after the `out` parameter, and its type has changed from `libra_viewport_t` to `libra_viewport_t *`, which is allowed to be `NULL`.
   See [`libra_viewport_t` changes](#libra_viewport_t-changes) for more details.
-* The `chain` parameter of `libra_d3d11_filter_chain_get_param` has been made `const` [^1].
+* The `chain` parameter of `libra_d3d11_filter_chain_get_param` has been made `const`.
 * It is always thread safe to call `libra_d3d11_filter_chain_set_param` from any thread [^1].
 
 ## `LIBRA_RUNTIME_D3D12` changes
@@ -71,7 +71,7 @@ The following changes are applicable if `LIBRA_RUNTIME_D3D12` is defined.
   * You should now pass what was previously `.width` and `.height` of `libra_viewport_t` to these new fields in `libra_output_image_d3d12_t`.
 * In `libra_d3d12_filter_chain_frame`, the position of the `viewport` parameter has moved to after the `out` parameter, and its type has changed from `libra_viewport_t` to `libra_viewport_t *`, which is allowed to be `NULL`.
   See [`libra_viewport_t` changes](#libra_viewport_t-changes) for more details.
-* The `chain` parameter of `libra_d3d12_filter_chain_get_param` has been made `const` [^1].
+* The `chain` parameter of `libra_d3d12_filter_chain_get_param` has been made `const`.
 * It is always thread safe to call `libra_d3d12_filter_chain_set_param` from any thread [^1].
 
 ## `LIBRA_RUNTIME_D3D9` changes
@@ -79,7 +79,7 @@ The following changes are applicable if `LIBRA_RUNTIME_D3D9` is defined.
 
 * In `libra_d3d9_filter_chain_frame`, the position of the `viewport` parameter has moved to after the `out` parameter, and its type has changed from `libra_viewport_t` to `libra_viewport_t *`, which is allowed to be `NULL`.
   See [`libra_viewport_t` changes](#libra_viewport_t-changes) for more details.
-* The `chain` parameter of `libra_d3d9_filter_chain_get_param` has been made `const` [^1].
+* The `chain` parameter of `libra_d3d9_filter_chain_get_param` has been made `const`.
 * It is always thread safe to call `libra_d3d9_filter_chain_set_param` from any thread [^1].
 
 ## `LIBRA_RUNTIME_METAL` changes
@@ -87,7 +87,7 @@ The following changes are applicable if `LIBRA_RUNTIME_METAL` is defined.
 
 * In `libra_mtl_filter_chain_frame`, the position of the `viewport` parameter has moved to after the `out` parameter, and its type has changed from `libra_viewport_t` to `libra_viewport_t *`, which is allowed to be `NULL`.
   See [`libra_viewport_t` changes](#libra_viewport_t-changes) for more details.
-* The `chain` parameter of `libra_mtl_filter_chain_get_param` has been made `const` [^1].
+* The `chain` parameter of `libra_mtl_filter_chain_get_param` has been made `const`.
 * It is always thread safe to call `libra_mtl_filter_chain_set_param` from any thread [^1].
 
 ## `libra_viewport_t` changes
diff --git a/include/librashader.h b/include/librashader.h
index 2c1c6c8..9bfcc5d 100644
--- a/include/librashader.h
+++ b/include/librashader.h
@@ -515,7 +515,7 @@ typedef libra_error_t (*PFN_libra_preset_set_param)(libra_shader_preset_t *prese
 
 /// Function pointer definition for
 ///libra_preset_get_param
-typedef libra_error_t (*PFN_libra_preset_get_param)(libra_shader_preset_t *preset,
+typedef libra_error_t (*PFN_libra_preset_get_param)(const libra_shader_preset_t *preset,
                                                     const char *name,
                                                     float *value);
 
@@ -525,7 +525,7 @@ typedef libra_error_t (*PFN_libra_preset_print)(libra_shader_preset_t *preset);
 
 /// Function pointer definition for
 ///libra_preset_get_runtime_params
-typedef libra_error_t (*PFN_libra_preset_get_runtime_params)(libra_shader_preset_t *preset,
+typedef libra_error_t (*PFN_libra_preset_get_runtime_params)(const libra_shader_preset_t *preset,
                                                              struct libra_preset_param_list_t *out);
 
 /// Function pointer definition for
@@ -659,7 +659,7 @@ typedef libra_error_t (*PFN_libra_gl_filter_chain_set_active_pass_count)(libra_g
 #if defined(LIBRA_RUNTIME_OPENGL)
 /// Function pointer definition for
 ///libra_gl_filter_chain_get_active_pass_count
-typedef libra_error_t (*PFN_libra_gl_filter_chain_get_active_pass_count)(libra_gl_filter_chain_t *chain,
+typedef libra_error_t (*PFN_libra_gl_filter_chain_get_active_pass_count)(const libra_gl_filter_chain_t *chain,
                                                                          uint32_t *out);
 #endif
 
@@ -1125,7 +1125,9 @@ libra_error_t libra_preset_set_param(libra_shader_preset_t *preset, const char *
 /// - `preset` must be null or a valid and aligned pointer to a shader preset.
 /// - `name` must be null or a valid and aligned pointer to a string.
 /// - `value` may be a pointer to a uninitialized `float`.
-libra_error_t libra_preset_get_param(libra_shader_preset_t *preset, const char *name, float *value);
+libra_error_t libra_preset_get_param(const libra_shader_preset_t *preset,
+                                     const char *name,
+                                     float *value);
 
 /// Pretty print the shader preset.
 ///
@@ -1143,7 +1145,7 @@ libra_error_t libra_preset_print(libra_shader_preset_t *preset);
 ///   cause undefined behaviour when later freed.
 /// - It is safe to call `libra_preset_get_runtime_params` multiple times, however
 ///   the output struct must only be freed once per call.
-libra_error_t libra_preset_get_runtime_params(libra_shader_preset_t *preset,
+libra_error_t libra_preset_get_runtime_params(const libra_shader_preset_t *preset,
                                               struct libra_preset_param_list_t *out);
 
 /// Free the runtime parameters.
@@ -1261,7 +1263,7 @@ libra_error_t libra_gl_filter_chain_set_active_pass_count(libra_gl_filter_chain_
 ///
 /// ## Safety
 /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_gl_filter_chain_t`.
-libra_error_t libra_gl_filter_chain_get_active_pass_count(libra_gl_filter_chain_t *chain,
+libra_error_t libra_gl_filter_chain_get_active_pass_count(const libra_gl_filter_chain_t *chain,
                                                           uint32_t *out);
 #endif
 
diff --git a/include/librashader_ld.h b/include/librashader_ld.h
index 7f22622..a55bf19 100644
--- a/include/librashader_ld.h
+++ b/include/librashader_ld.h
@@ -178,7 +178,7 @@ libra_error_t __librashader__noop_preset_set_param(
 }
 
 libra_error_t __librashader__noop_preset_get_param(
-    libra_shader_preset_t *preset, const char *name, float *value) {
+    const libra_shader_preset_t *preset, const char *name, float *value) {
     return NULL;
 }
 
@@ -186,7 +186,7 @@ libra_error_t __librashader__noop_preset_print(libra_shader_preset_t *preset) {
     return NULL;
 }
 libra_error_t __librashader__noop_preset_get_runtime_params(
-    libra_shader_preset_t *preset, struct libra_preset_param_list_t *out) {
+    const libra_shader_preset_t *preset, struct libra_preset_param_list_t *out) {
     return NULL;
 }
 libra_error_t __librashader__noop_preset_free_runtime_params(
@@ -221,7 +221,7 @@ libra_error_t __librashader__noop_gl_filter_chain_set_param(
 }
 
 libra_error_t __librashader__noop_gl_filter_chain_get_param(
-    libra_gl_filter_chain_t *chain, const char *param_name, float *out) {
+    const libra_gl_filter_chain_t *chain, const char *param_name, float *out) {
     return NULL;
 }
 
@@ -231,7 +231,7 @@ libra_error_t __librashader__noop_gl_filter_chain_set_active_pass_count(
 }
 
 libra_error_t __librashader__noop_gl_filter_chain_get_active_pass_count(
-    libra_gl_filter_chain_t *chain, uint32_t *out) {
+    const libra_gl_filter_chain_t *chain, uint32_t *out) {
     return NULL;
 }
 #endif
@@ -271,7 +271,7 @@ libra_error_t __librashader__noop_vk_filter_chain_set_param(
 }
 
 libra_error_t __librashader__noop_vk_filter_chain_get_param(
-    libra_vk_filter_chain_t *chain, const char *param_name, float *out) {
+    const libra_vk_filter_chain_t *chain, const char *param_name, float *out) {
     return NULL;
 }
 
@@ -281,7 +281,7 @@ libra_error_t __librashader__noop_vk_filter_chain_set_active_pass_count(
 }
 
 libra_error_t __librashader__noop_vk_filter_chain_get_active_pass_count(
-    libra_vk_filter_chain_t *chain, uint32_t *out) {
+    const libra_vk_filter_chain_t *chain, uint32_t *out) {
     return NULL;
 }
 #endif
@@ -323,7 +323,7 @@ libra_error_t __librashader__noop_d3d11_filter_chain_set_param(
 }
 
 libra_error_t __librashader__noop_d3d11_filter_chain_get_param(
-    libra_d3d11_filter_chain_t *chain, const char *param_name, float *out) {
+    const libra_d3d11_filter_chain_t *chain, const char *param_name, float *out) {
     return NULL;
 }
 
@@ -333,7 +333,7 @@ libra_error_t __librashader__noop_d3d11_filter_chain_set_active_pass_count(
 }
 
 libra_error_t __librashader__noop_d3d11_filter_chain_get_active_pass_count(
-    libra_d3d11_filter_chain_t *chain, uint32_t *out) {
+    const libra_d3d11_filter_chain_t *chain, uint32_t *out) {
     return NULL;
 }
 #endif
@@ -375,7 +375,7 @@ libra_error_t __librashader__noop_d3d12_filter_chain_set_param(
 }
 
 libra_error_t __librashader__noop_d3d12_filter_chain_get_param(
-    libra_d3d12_filter_chain_t *chain, const char *param_name, float *out) {
+    const libra_d3d12_filter_chain_t *chain, const char *param_name, float *out) {
     return NULL;
 }
 
@@ -385,7 +385,7 @@ libra_error_t __librashader__noop_d3d12_filter_chain_set_active_pass_count(
 }
 
 libra_error_t __librashader__noop_d3d12_filter_chain_get_active_pass_count(
-    libra_d3d12_filter_chain_t *chain, uint32_t *out) {
+    const libra_d3d12_filter_chain_t *chain, uint32_t *out) {
     return NULL;
 }
 #endif
@@ -418,7 +418,7 @@ libra_error_t __librashader__noop_d3d9_filter_chain_set_param(
 }
 
 libra_error_t __librashader__noop_d3d9_filter_chain_get_param(
-    libra_d3d9_filter_chain_t *chain, const char *param_name, float *out) {
+    const libra_d3d9_filter_chain_t *chain, const char *param_name, float *out) {
     return NULL;
 }
 
@@ -428,7 +428,7 @@ libra_error_t __librashader__noop_d3d9_filter_chain_set_active_pass_count(
 }
 
 libra_error_t __librashader__noop_d3d9_filter_chain_get_active_pass_count(
-    libra_d3d9_filter_chain_t *chain, uint32_t *out) {
+    const libra_d3d9_filter_chain_t *chain, uint32_t *out) {
     return NULL;
 }
 #endif
@@ -470,7 +470,7 @@ libra_error_t __librashader__noop_mtl_filter_chain_set_param(
 }
 
 libra_error_t __librashader__noop_mtl_filter_chain_get_param(
-    libra_mtl_filter_chain_t *chain, const char *param_name, float *out) {
+    const libra_mtl_filter_chain_t *chain, const char *param_name, float *out) {
     return NULL;
 }
 
@@ -480,7 +480,7 @@ libra_error_t __librashader__noop_mtl_filter_chain_set_active_pass_count(
 }
 
 libra_error_t __librashader__noop_mtl_filter_chain_get_active_pass_count(
-    libra_mtl_filter_chain_t *chain, uint32_t *out) {
+    const libra_mtl_filter_chain_t *chain, uint32_t *out) {
     return NULL;
 }
 #endif
diff --git a/librashader-capi/src/presets.rs b/librashader-capi/src/presets.rs
index 8bafff4..b21ea76 100644
--- a/librashader-capi/src/presets.rs
+++ b/librashader-capi/src/presets.rs
@@ -157,7 +157,7 @@ extern_fn! {
     /// - `name` must be null or a valid and aligned pointer to a string.
     /// - `value` may be a pointer to a uninitialized `float`.
     fn libra_preset_get_param(
-        preset: *mut libra_shader_preset_t,
+        preset: *const libra_shader_preset_t,
         name: *const c_char,
         value: *mut MaybeUninit<f32>
     ) |name, preset| {
@@ -195,7 +195,7 @@ extern_fn! {
     /// - It is safe to call `libra_preset_get_runtime_params` multiple times, however
     ///   the output struct must only be freed once per call.
     fn libra_preset_get_runtime_params(
-        preset: *mut libra_shader_preset_t,
+        preset: *const libra_shader_preset_t,
         out: *mut MaybeUninit<libra_preset_param_list_t>
     ) |preset| {
         assert_some_ptr!(preset);
diff --git a/librashader-capi/src/runtime/d3d11/filter_chain.rs b/librashader-capi/src/runtime/d3d11/filter_chain.rs
index d6c3be3..579f8aa 100644
--- a/librashader-capi/src/runtime/d3d11/filter_chain.rs
+++ b/librashader-capi/src/runtime/d3d11/filter_chain.rs
@@ -298,7 +298,7 @@ extern_fn! {
     /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_d3d11_filter_chain_t`.
     /// - `param_name` must be either null or a null terminated string.
     fn libra_d3d11_filter_chain_get_param(
-        chain: *mut libra_d3d11_filter_chain_t,
+        chain: *const libra_d3d11_filter_chain_t,
         param_name: *const c_char,
         out: *mut MaybeUninit<f32>
     ) |chain| {
@@ -337,7 +337,7 @@ extern_fn! {
     /// ## Safety
     /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_d3d11_filter_chain_t`.
     fn libra_d3d11_filter_chain_get_active_pass_count(
-        chain: *mut libra_d3d11_filter_chain_t,
+        chain: *const libra_d3d11_filter_chain_t,
         out: *mut MaybeUninit<u32>
     ) |chain| {
         assert_some_ptr!(chain);
diff --git a/librashader-capi/src/runtime/d3d12/filter_chain.rs b/librashader-capi/src/runtime/d3d12/filter_chain.rs
index 4f2194a..80ab7c8 100644
--- a/librashader-capi/src/runtime/d3d12/filter_chain.rs
+++ b/librashader-capi/src/runtime/d3d12/filter_chain.rs
@@ -335,7 +335,7 @@ extern_fn! {
     /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_d3d12_filter_chain_t`.
     /// - `param_name` must be either null or a null terminated string.
     fn libra_d3d12_filter_chain_get_param(
-        chain: *mut libra_d3d12_filter_chain_t,
+        chain: *const libra_d3d12_filter_chain_t,
         param_name: *const c_char,
         out: *mut MaybeUninit<f32>
     ) |chain| {
@@ -374,7 +374,7 @@ extern_fn! {
     /// ## Safety
     /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_d3d12_filter_chain_t`.
     fn libra_d3d12_filter_chain_get_active_pass_count(
-        chain: *mut libra_d3d12_filter_chain_t,
+        chain: *const libra_d3d12_filter_chain_t,
         out: *mut MaybeUninit<u32>
     ) |chain| {
         assert_some_ptr!(chain);
diff --git a/librashader-capi/src/runtime/d3d9/filter_chain.rs b/librashader-capi/src/runtime/d3d9/filter_chain.rs
index 47db2db..90a3e36 100644
--- a/librashader-capi/src/runtime/d3d9/filter_chain.rs
+++ b/librashader-capi/src/runtime/d3d9/filter_chain.rs
@@ -217,7 +217,7 @@ extern_fn! {
     /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_d3d9_filter_chain_t`.
     /// - `param_name` must be either null or a null terminated string.
     fn libra_d3d9_filter_chain_get_param(
-        chain: *mut libra_d3d9_filter_chain_t,
+        chain: *const libra_d3d9_filter_chain_t,
         param_name: *const c_char,
         out: *mut MaybeUninit<f32>
     ) |chain| {
@@ -256,7 +256,7 @@ extern_fn! {
     /// ## Safety
     /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_d3d9_filter_chain_t`.
     fn libra_d3d9_filter_chain_get_active_pass_count(
-        chain: *mut libra_d3d9_filter_chain_t,
+        chain: *const libra_d3d9_filter_chain_t,
         out: *mut MaybeUninit<u32>
     ) |chain| {
         assert_some_ptr!(chain);
diff --git a/librashader-capi/src/runtime/gl/filter_chain.rs b/librashader-capi/src/runtime/gl/filter_chain.rs
index 3a729ef..0e9eb36 100644
--- a/librashader-capi/src/runtime/gl/filter_chain.rs
+++ b/librashader-capi/src/runtime/gl/filter_chain.rs
@@ -255,7 +255,7 @@ extern_fn! {
     /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_gl_filter_chain_t`.
     /// - `param_name` must be either null or a null terminated string.
     fn libra_gl_filter_chain_get_param(
-        chain: *mut libra_gl_filter_chain_t,
+        chain: *const libra_gl_filter_chain_t,
         param_name: *const c_char,
         out: *mut MaybeUninit<f32>
     ) |chain| {
@@ -294,10 +294,10 @@ extern_fn! {
     /// ## Safety
     /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_gl_filter_chain_t`.
     fn libra_gl_filter_chain_get_active_pass_count(
-        chain: *mut libra_gl_filter_chain_t,
+        chain: *const libra_gl_filter_chain_t,
         out: *mut MaybeUninit<u32>
-    ) mut |chain| {
-        assert_some_ptr!(mut chain);
+    ) |chain| {
+        assert_some_ptr!(chain);
         let value = chain.parameters().passes_enabled();
         unsafe {
             out.write(MaybeUninit::new(value as u32))
diff --git a/librashader-capi/src/runtime/mtl/filter_chain.rs b/librashader-capi/src/runtime/mtl/filter_chain.rs
index a54c664..24d7759 100644
--- a/librashader-capi/src/runtime/mtl/filter_chain.rs
+++ b/librashader-capi/src/runtime/mtl/filter_chain.rs
@@ -276,7 +276,7 @@ extern_fn! {
     /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_mtl_filter_chain_t`.
     /// - `param_name` must be either null or a null terminated string.
     fn libra_mtl_filter_chain_get_param(
-        chain: *mut libra_mtl_filter_chain_t,
+        chain: *const libra_mtl_filter_chain_t,
         param_name: *const c_char,
         out: *mut MaybeUninit<f32>
     ) |chain| {
@@ -315,7 +315,7 @@ extern_fn! {
     /// ## Safety
     /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_mtl_filter_chain_t`.
     fn libra_mtl_filter_chain_get_active_pass_count(
-        chain: *mut libra_mtl_filter_chain_t,
+        chain: *const libra_mtl_filter_chain_t,
         out: *mut MaybeUninit<u32>
     ) |chain| {
         assert_some_ptr!(chain);
diff --git a/librashader-capi/src/runtime/vk/filter_chain.rs b/librashader-capi/src/runtime/vk/filter_chain.rs
index 5ddb0c2..f809fb0 100644
--- a/librashader-capi/src/runtime/vk/filter_chain.rs
+++ b/librashader-capi/src/runtime/vk/filter_chain.rs
@@ -357,7 +357,7 @@ extern_fn! {
     /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_vk_filter_chain_t`.
     /// - `param_name` must be either null or a null terminated string.
     fn libra_vk_filter_chain_get_param(
-        chain: *mut libra_vk_filter_chain_t,
+        chain: *const libra_vk_filter_chain_t,
         param_name: *const c_char,
         out: *mut MaybeUninit<f32>
     ) |chain| {
@@ -396,7 +396,7 @@ extern_fn! {
     /// ## Safety
     /// - `chain` must be either null or a valid and aligned pointer to an initialized `libra_vk_filter_chain_t`.
     fn libra_vk_filter_chain_get_active_pass_count(
-        chain: *mut libra_vk_filter_chain_t,
+        chain: *const libra_vk_filter_chain_t,
         out: *mut MaybeUninit<u32>
     ) |chain| {
         assert_some_ptr!(chain);