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-rw-r--r--third_party/rust/glslopt/src/bindings.rs135
-rw-r--r--third_party/rust/glslopt/src/lib.rs102
2 files changed, 237 insertions, 0 deletions
diff --git a/third_party/rust/glslopt/src/bindings.rs b/third_party/rust/glslopt/src/bindings.rs
new file mode 100644
index 0000000000..f4e5bebd08
--- /dev/null
+++ b/third_party/rust/glslopt/src/bindings.rs
@@ -0,0 +1,135 @@
+/* automatically generated by rust-bindgen */
+
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct glslopt_shader {
+ _unused: [u8; 0],
+}
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct glslopt_ctx {
+ _unused: [u8; 0],
+}
+pub const glslopt_shader_type_kGlslOptShaderVertex: glslopt_shader_type = 0;
+pub const glslopt_shader_type_kGlslOptShaderFragment: glslopt_shader_type = 1;
+pub type glslopt_shader_type = u32;
+pub const glslopt_options_kGlslOptionSkipPreprocessor: glslopt_options = 1;
+pub const glslopt_options_kGlslOptionNotFullShader: glslopt_options = 2;
+pub type glslopt_options = u32;
+pub const glslopt_target_kGlslTargetOpenGL: glslopt_target = 0;
+pub const glslopt_target_kGlslTargetOpenGLES20: glslopt_target = 1;
+pub const glslopt_target_kGlslTargetOpenGLES30: glslopt_target = 2;
+pub const glslopt_target_kGlslTargetMetal: glslopt_target = 3;
+pub type glslopt_target = u32;
+pub const glslopt_basic_type_kGlslTypeFloat: glslopt_basic_type = 0;
+pub const glslopt_basic_type_kGlslTypeInt: glslopt_basic_type = 1;
+pub const glslopt_basic_type_kGlslTypeBool: glslopt_basic_type = 2;
+pub const glslopt_basic_type_kGlslTypeTex2D: glslopt_basic_type = 3;
+pub const glslopt_basic_type_kGlslTypeTex3D: glslopt_basic_type = 4;
+pub const glslopt_basic_type_kGlslTypeTexCube: glslopt_basic_type = 5;
+pub const glslopt_basic_type_kGlslTypeTex2DShadow: glslopt_basic_type = 6;
+pub const glslopt_basic_type_kGlslTypeTex2DArray: glslopt_basic_type = 7;
+pub const glslopt_basic_type_kGlslTypeOther: glslopt_basic_type = 8;
+pub const glslopt_basic_type_kGlslTypeCount: glslopt_basic_type = 9;
+pub type glslopt_basic_type = u32;
+pub const glslopt_precision_kGlslPrecHigh: glslopt_precision = 0;
+pub const glslopt_precision_kGlslPrecMedium: glslopt_precision = 1;
+pub const glslopt_precision_kGlslPrecLow: glslopt_precision = 2;
+pub const glslopt_precision_kGlslPrecCount: glslopt_precision = 3;
+pub type glslopt_precision = u32;
+extern "C" {
+ pub fn glslopt_initialize(target: glslopt_target) -> *mut glslopt_ctx;
+}
+extern "C" {
+ pub fn glslopt_cleanup(ctx: *mut glslopt_ctx);
+}
+extern "C" {
+ pub fn glslopt_set_max_unroll_iterations(
+ ctx: *mut glslopt_ctx,
+ iterations: ::std::os::raw::c_uint,
+ );
+}
+extern "C" {
+ pub fn glslopt_optimize(
+ ctx: *mut glslopt_ctx,
+ type_: glslopt_shader_type,
+ shaderSource: *const ::std::os::raw::c_char,
+ options: ::std::os::raw::c_uint,
+ ) -> *mut glslopt_shader;
+}
+extern "C" {
+ pub fn glslopt_get_status(shader: *mut glslopt_shader) -> bool;
+}
+extern "C" {
+ pub fn glslopt_get_output(shader: *mut glslopt_shader) -> *const ::std::os::raw::c_char;
+}
+extern "C" {
+ pub fn glslopt_get_raw_output(shader: *mut glslopt_shader) -> *const ::std::os::raw::c_char;
+}
+extern "C" {
+ pub fn glslopt_get_log(shader: *mut glslopt_shader) -> *const ::std::os::raw::c_char;
+}
+extern "C" {
+ pub fn glslopt_shader_delete(shader: *mut glslopt_shader);
+}
+extern "C" {
+ pub fn glslopt_shader_get_input_count(shader: *mut glslopt_shader) -> ::std::os::raw::c_int;
+}
+extern "C" {
+ pub fn glslopt_shader_get_input_desc(
+ shader: *mut glslopt_shader,
+ index: ::std::os::raw::c_int,
+ outName: *mut *const ::std::os::raw::c_char,
+ outType: *mut glslopt_basic_type,
+ outPrec: *mut glslopt_precision,
+ outVecSize: *mut ::std::os::raw::c_int,
+ outMatSize: *mut ::std::os::raw::c_int,
+ outArraySize: *mut ::std::os::raw::c_int,
+ outLocation: *mut ::std::os::raw::c_int,
+ );
+}
+extern "C" {
+ pub fn glslopt_shader_get_uniform_count(shader: *mut glslopt_shader) -> ::std::os::raw::c_int;
+}
+extern "C" {
+ pub fn glslopt_shader_get_uniform_total_size(
+ shader: *mut glslopt_shader,
+ ) -> ::std::os::raw::c_int;
+}
+extern "C" {
+ pub fn glslopt_shader_get_uniform_desc(
+ shader: *mut glslopt_shader,
+ index: ::std::os::raw::c_int,
+ outName: *mut *const ::std::os::raw::c_char,
+ outType: *mut glslopt_basic_type,
+ outPrec: *mut glslopt_precision,
+ outVecSize: *mut ::std::os::raw::c_int,
+ outMatSize: *mut ::std::os::raw::c_int,
+ outArraySize: *mut ::std::os::raw::c_int,
+ outLocation: *mut ::std::os::raw::c_int,
+ );
+}
+extern "C" {
+ pub fn glslopt_shader_get_texture_count(shader: *mut glslopt_shader) -> ::std::os::raw::c_int;
+}
+extern "C" {
+ pub fn glslopt_shader_get_texture_desc(
+ shader: *mut glslopt_shader,
+ index: ::std::os::raw::c_int,
+ outName: *mut *const ::std::os::raw::c_char,
+ outType: *mut glslopt_basic_type,
+ outPrec: *mut glslopt_precision,
+ outVecSize: *mut ::std::os::raw::c_int,
+ outMatSize: *mut ::std::os::raw::c_int,
+ outArraySize: *mut ::std::os::raw::c_int,
+ outLocation: *mut ::std::os::raw::c_int,
+ );
+}
+extern "C" {
+ pub fn glslopt_shader_get_stats(
+ shader: *mut glslopt_shader,
+ approxMath: *mut ::std::os::raw::c_int,
+ approxTex: *mut ::std::os::raw::c_int,
+ approxFlow: *mut ::std::os::raw::c_int,
+ );
+}
diff --git a/third_party/rust/glslopt/src/lib.rs b/third_party/rust/glslopt/src/lib.rs
new file mode 100644
index 0000000000..e06ec1a4c6
--- /dev/null
+++ b/third_party/rust/glslopt/src/lib.rs
@@ -0,0 +1,102 @@
+use std::ffi::{CString, CStr};
+use std::ptr;
+
+#[allow(dead_code)]
+#[allow(non_camel_case_types)]
+#[allow(non_upper_case_globals)]
+mod bindings;
+
+pub enum ShaderType {
+ Vertex,
+ Fragment,
+}
+
+pub enum Target {
+ OpenGl,
+ OpenGles20,
+ OpenGles30,
+ Metal,
+}
+
+pub struct Context {
+ ctx: *mut bindings::glslopt_ctx,
+}
+
+impl Context {
+ pub fn new(target: Target) -> Self {
+ let target = match target {
+ Target::OpenGl => bindings::glslopt_target_kGlslTargetOpenGL,
+ Target::OpenGles20 => bindings::glslopt_target_kGlslTargetOpenGLES20,
+ Target::OpenGles30 => bindings::glslopt_target_kGlslTargetOpenGLES30,
+ Target::Metal => bindings::glslopt_target_kGlslTargetMetal,
+ };
+
+ let ctx = unsafe { bindings::glslopt_initialize(target) };
+
+ Self {
+ ctx,
+ }
+ }
+
+ pub fn optimize(&self, shader_type: ShaderType, source: String) -> Shader {
+ let shader_type = match shader_type {
+ ShaderType::Vertex => bindings::glslopt_shader_type_kGlslOptShaderVertex,
+ ShaderType::Fragment => bindings::glslopt_shader_type_kGlslOptShaderFragment,
+ };
+ let source = CString::new(source).unwrap();
+
+ let shader = unsafe { bindings::glslopt_optimize(self.ctx, shader_type, source.as_ptr(), 0) };
+ assert_ne!(shader, ptr::null_mut());
+ Shader {
+ shader,
+ }
+ }
+}
+
+impl Drop for Context {
+ fn drop(&mut self) {
+ unsafe {
+ bindings::glslopt_cleanup(self.ctx);
+ }
+ }
+}
+
+pub struct Shader {
+ shader: *mut bindings::glslopt_shader,
+}
+
+impl Shader {
+ pub fn get_status(&self) -> bool {
+ unsafe { bindings::glslopt_get_status(self.shader) }
+ }
+
+ pub fn get_output(&self) -> Result<&str, ()> {
+ unsafe {
+ let cstr = bindings::glslopt_get_output(self.shader);
+ if cstr == ptr::null() {
+ Err(())
+ } else {
+ Ok(CStr::from_ptr(cstr).to_str().unwrap())
+ }
+ }
+ }
+
+ pub fn get_log(&self) -> &str {
+ unsafe {
+ let cstr = bindings::glslopt_get_log(self.shader);
+ if cstr == ptr::null() {
+ ""
+ } else {
+ CStr::from_ptr(cstr).to_str().unwrap()
+ }
+ }
+ }
+}
+
+impl Drop for Shader {
+ fn drop(&mut self) {
+ unsafe {
+ bindings::glslopt_shader_delete(self.shader);
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 12:21:44 +0000