1 files changed, 86 insertions, 0 deletions
diff --git a/third_party/rust/gleam/build.rs b/third_party/rust/gleam/build.rs
new file mode 100644
index 0000000000..6a15783a1b
--- /dev/null
+++ b/third_party/rust/gleam/build.rs
@@ -0,0 +1,86 @@
+extern crate gl_generator;
+
+use gl_generator::{Api, Fallbacks, Profile, Registry};
+use std::env;
+use std::fs::File;
+use std::path::Path;
+
+fn main() {
+    let dest = env::var("OUT_DIR").unwrap();
+    let mut file_gl_and_gles =
+        File::create(&Path::new(&dest).join("gl_and_gles_bindings.rs")).unwrap();
+    let mut file_gl = File::create(&Path::new(&dest).join("gl_bindings.rs")).unwrap();
+    let mut file_gles = File::create(&Path::new(&dest).join("gles_bindings.rs")).unwrap();
+
+    // OpenGL 3.3 bindings
+    let gl_extensions = [
+        "GL_APPLE_client_storage",
+        "GL_APPLE_fence",
+        "GL_APPLE_texture_range",
+        "GL_APPLE_vertex_array_object",
+        "GL_ARB_blend_func_extended",
+        "GL_ARB_buffer_storage",
+        "GL_ARB_copy_image",
+        "GL_ARB_get_program_binary",
+        "GL_ARB_invalidate_subdata",
+        "GL_ARB_texture_rectangle",
+        "GL_ARB_texture_storage",
+        "GL_EXT_debug_marker",
+        "GL_EXT_texture_filter_anisotropic",
+        "GL_KHR_debug",
+        "GL_KHR_blend_equation_advanced",
+        "GL_KHR_blend_equation_advanced_coherent",
+        "GL_KHR_blend_equation_advanced_coherent",
+        "GL_ARB_shader_storage_buffer_object",
+    ];
+    let gl_reg = Registry::new(
+        Api::Gl,
+        (3, 3),
+        Profile::Compatibility,
+        Fallbacks::All,
+        gl_extensions,
+    );
+    gl_reg
+        .write_bindings(gl_generator::StructGenerator, &mut file_gl)
+        .unwrap();
+
+    // GLES 3.0 bindings
+    let gles_extensions = [
+        "GL_EXT_buffer_storage",
+        "GL_EXT_copy_image",
+        "GL_EXT_debug_marker",
+        "GL_EXT_disjoint_timer_query",
+        "GL_EXT_shader_texture_lod",
+        "GL_EXT_texture_filter_anisotropic",
+        "GL_EXT_texture_format_BGRA8888",
+        "GL_EXT_texture_storage",
+        "GL_OES_EGL_image_external",
+        "GL_OES_EGL_image",
+        "GL_OES_texture_half_float",
+        "GL_EXT_shader_pixel_local_storage",
+        "GL_ANGLE_provoking_vertex",
+        "GL_ANGLE_texture_usage",
+        "GL_CHROMIUM_copy_texture",
+        "GL_KHR_debug",
+        "GL_KHR_blend_equation_advanced",
+        "GL_KHR_blend_equation_advanced_coherent",
+        "GL_ANGLE_copy_texture_3d",
+    ];
+    let gles_reg = Registry::new(
+        Api::Gles2,
+        // using 3.1 to get SSBO support
+        (3, 1),
+        Profile::Core,
+        Fallbacks::All,
+        gles_extensions,
+    );
+    gles_reg
+        .write_bindings(gl_generator::StructGenerator, &mut file_gles)
+        .unwrap();
+
+    // OpenGL 3.3 + GLES 3.0 bindings. Used to get all enums
+    let gl_reg = gl_reg + gles_reg;
+    gl_reg
+        .write_bindings(gl_generator::StructGenerator, &mut file_gl_and_gles)
+        .unwrap();
+}