Move extension query mapping to renderer gl

src/renderer_gl/opengl_capabilities.cpp

@@ -20,6 +20,8 @@ constexpr std::uint32_t gl_vertex_shader = 0x8B31U;
 constexpr std::uint32_t gl_compile_status = 0x8B81U;
 constexpr std::uint32_t gl_link_status = 0x8B82U;
 constexpr std::uint32_t gl_active_uniforms = 0x8B86U;
+constexpr std::uint32_t gl_extensions = 0x1F03U;
+constexpr std::uint32_t gl_num_extensions = 0x821DU;
 constexpr std::uint32_t gl_version = 0x1F02U;
 constexpr std::uint32_t gl_vendor = 0x1F00U;
 constexpr std::uint32_t gl_renderer = 0x1F01U;
@@ -140,6 +142,16 @@ OpenGlCapabilities detect_opengl_capabilities(
     return capabilities;
 }
 
+std::uint32_t extension_count_query() noexcept
+{
+    return gl_num_extensions;
+}
+
+std::uint32_t extension_string_name() noexcept
+{
+    return gl_extensions;
+}
+
 std::uint32_t texture_upload_type_for_internal_format(std::uint32_t internal_format) noexcept
 {
     switch (internal_format) {

src/renderer_gl/opengl_capabilities.h

@@ -42,6 +42,8 @@ struct OpenGlReadbackFormat {
     std::span<const std::string_view> extensions,
     OpenGlRuntime runtime) noexcept;
 
+[[nodiscard]] std::uint32_t extension_count_query() noexcept;
+[[nodiscard]] std::uint32_t extension_string_name() noexcept;
 [[nodiscard]] std::uint32_t texture_upload_type_for_internal_format(std::uint32_t internal_format) noexcept;
 [[nodiscard]] std::uint32_t unsigned_byte_component_type() noexcept;
 [[nodiscard]] std::uint32_t rgba_pixel_format() noexcept;