Add query_counter and get_query_parameter_ptr

src/lib.rs

@@ -1147,9 +1147,9 @@ pub trait HasContext {
     ) where
         S: AsRef<str>;
 
-        unsafe fn debug_message_callback<F>(&mut self, callback: F)
-        where
-            F: FnMut(u32, u32, u32, u32, &str) + 'static;
+    unsafe fn debug_message_callback<F>(&mut self, callback: F)
+    where
+        F: FnMut(u32, u32, u32, u32, &str) + 'static;
 
     unsafe fn get_debug_message_log(&self, count: u32) -> Vec<DebugMessageLogEntry>;
 
@@ -1200,8 +1200,12 @@ pub trait HasContext {
 
     unsafe fn end_query(&self, target: u32);
 
+    unsafe fn query_counter(&self, query: Self::Query, target: u32);
+
     unsafe fn get_query_parameter_u32(&self, query: Self::Query, parameter: u32) -> u32;
 
+    unsafe fn get_query_parameter_ptr(&self, query: Self::Query, parameter: u32, value: *mut ());
+
     unsafe fn delete_transform_feedback(&self, transform_feedback: Self::TransformFeedback);
 
     unsafe fn create_transform_feedback(&self) -> Result<Self::TransformFeedback, String>;

src/native.rs

@@ -2856,13 +2856,23 @@ impl HasContext for Context {
         gl.EndQuery(target);
     }
 
+    unsafe fn query_counter(&self, query: Self::Query, target: u32) {
+        let gl = &self.raw;
+        gl.QueryCounter(query.0.get(), target);
+    }
+
     unsafe fn get_query_parameter_u32(&self, query: Self::Query, parameter: u32) -> u32 {
         let gl = &self.raw;
         let mut value = 0;
         gl.GetQueryObjectuiv(query.0.get(), parameter, &mut value);
         value
     }
 
+    unsafe fn get_query_parameter_ptr(&self, query: Self::Query, parameter: u32, value: *mut ()) {
+        let gl = &self.raw;
+        gl.GetQueryObjectuiv(query.0.get(), parameter, value.cast());
+    }
+
     unsafe fn create_transform_feedback(&self) -> Result<Self::TransformFeedback, String> {
         let gl = &self.raw;
         let mut name = 0;
@@ -3096,8 +3106,7 @@ extern "system" fn raw_debug_message_callback(
     length: i32,
     message: *const native_gl::GLchar,
     user_param: *mut std::ffi::c_void,
-)
-{
+) {
     let _result = std::panic::catch_unwind(move || unsafe {
         let callback: &mut DebugCallback = &mut *(user_param as *mut DebugCallback);
         let slice = std::slice::from_raw_parts(message as *const u8, length as usize);

src/web_sys.rs

@@ -4558,6 +4558,10 @@ impl HasContext for Context {
         }
     }
 
+    unsafe fn query_counter(&self, target: u32) {
+        panic!("Query counters are not supported");
+    }
+
     unsafe fn get_query_parameter_u32(&self, query: Self::Query, parameter: u32) -> u32 {
         let queries = self.queries.borrow();
         let raw_query = queries.get_unchecked(query);
@@ -4571,6 +4575,10 @@ impl HasContext for Context {
         }
     }
 
+    unsafe fn get_query_parameter_ptr(&self, query: Self::Query, parameter: u32) -> u32 {
+        panic!("Query buffers are not supported");
+    }
+
     unsafe fn create_transform_feedback(&self) -> Result<Self::TransformFeedback, String> {
         let raw_transform_feedback = match self.raw {
             RawRenderingContext::WebGl1(ref _gl) => {