Route GL runtime info through renderer GL

docs/modernization/build-inventory.md

@@ -460,9 +460,10 @@ Known local toolchain state:
   the debt-tracked adapter isolated in
   `src/platform_legacy/legacy_platform_services.*`.
 - `pp_renderer_gl` owns the tested `OpenGlInitialState` startup depth/blend
-  policy and dispatch application consumed by `App::init`, plus renderer API
-  to OpenGL token mapping and command-planning contracts used by the OpenGL
-  parity work.
+  policy and dispatch application consumed by `App::init`, tested runtime
+  version/vendor/renderer/GLSL string query dispatch, plus renderer API to
+  OpenGL token mapping and command-planning contracts used by the OpenGL parity
+  work.
 - `pano_cli plan-cloud-upload` exposes `pp_app_core` cloud upload availability,
   new-document warning, publish prompt, and save-before-upload planning as JSON;
   the live cloud upload command consumes the same start contract before

docs/modernization/roadmap.md

@@ -518,6 +518,9 @@ Initial PanoPainter OpenGL depth/blend startup state is now represented and
 applied by tested `pp_renderer_gl` startup-state contracts; `App::init`
 delegates to the backend dispatch path instead of hard-coding the policy or
 operation order.
+OpenGL runtime version/vendor/renderer/GLSL string queries now also use a
+tested `pp_renderer_gl` dispatch contract, leaving `App::init` to log the
+result while the backend owns the query set and order.
 Windows RenderDoc frame capture hooks now also dispatch through
 `PlatformServices`, keeping capture integration in the platform service while
 leaving non-Windows adapters as no-ops.

src/app.cpp

@@ -25,31 +25,16 @@ std::condition_variable App::render_cv;
 
 namespace {
 
-[[nodiscard]] GLenum version_string_name() noexcept
-{
-    return static_cast<GLenum>(pp::renderer::gl::version_string_name());
-}
-
-[[nodiscard]] GLenum vendor_string_name() noexcept
-{
-    return static_cast<GLenum>(pp::renderer::gl::vendor_string_name());
-}
-
-[[nodiscard]] GLenum renderer_string_name() noexcept
-{
-    return static_cast<GLenum>(pp::renderer::gl::renderer_string_name());
-}
-
-[[nodiscard]] GLenum shading_language_version_string_name() noexcept
-{
-    return static_cast<GLenum>(pp::renderer::gl::shading_language_version_string_name());
-}
-
 [[nodiscard]] GLenum scissor_test_state() noexcept
 {
     return static_cast<GLenum>(pp::renderer::gl::scissor_test_state());
 }
 
+[[nodiscard]] const char* query_opengl_string(std::uint32_t name) noexcept
+{
+    return reinterpret_cast<const char*>(glGetString(static_cast<GLenum>(name)));
+}
+
 void enable_opengl_state(std::uint32_t state) noexcept
 {
     glEnable(static_cast<GLenum>(state));
@@ -393,10 +378,22 @@ void App::init()
     render_task([]
     {
         App::I->install_render_debug_callback();
-        LOG("GL version: %s", glGetString(version_string_name()));
-        LOG("GL vendor: %s", glGetString(vendor_string_name()));
-        LOG("GL renderer: %s", glGetString(renderer_string_name()));
-        LOG("GLSL version: %s", glGetString(shading_language_version_string_name()));
+        const auto runtime_info_result = pp::renderer::gl::query_opengl_runtime_info(
+            pp::renderer::gl::OpenGlRuntimeInfoDispatch {
+                .get_string = query_opengl_string,
+            });
+        if (runtime_info_result.ok())
+        {
+            const auto& runtime_info = runtime_info_result.value();
+            LOG("GL version: %s", runtime_info.version);
+            LOG("GL vendor: %s", runtime_info.vendor);
+            LOG("GL renderer: %s", runtime_info.renderer);
+            LOG("GLSL version: %s", runtime_info.shading_language_version);
+        }
+        else
+        {
+            LOG("OpenGL runtime info failed: %s", runtime_info_result.status().message);
+        }
 
         //GLint n_exts;
         //glGetIntegerv(GL_NUM_EXTENSIONS, &n_exts);

src/renderer_gl/opengl_capabilities.cpp

@@ -245,6 +245,22 @@ pp::foundation::Status apply_panopainter_initial_state(OpenGlStateDispatch dispa
     return pp::foundation::Status::success();
 }
 
+pp::foundation::Result<OpenGlRuntimeInfo> query_opengl_runtime_info(
+    OpenGlRuntimeInfoDispatch dispatch) noexcept
+{
+    if (dispatch.get_string == nullptr) {
+        return pp::foundation::Result<OpenGlRuntimeInfo>::failure(
+            pp::foundation::Status::invalid_argument("OpenGL runtime info string callback must not be null"));
+    }
+
+    return pp::foundation::Result<OpenGlRuntimeInfo>::success(OpenGlRuntimeInfo {
+        .version = dispatch.get_string(version_string_name()),
+        .vendor = dispatch.get_string(vendor_string_name()),
+        .renderer = dispatch.get_string(renderer_string_name()),
+        .shading_language_version = dispatch.get_string(shading_language_version_string_name()),
+    });
+}
+
 std::uint32_t extension_count_query() noexcept
 {
     return gl_num_extensions;

src/renderer_gl/opengl_capabilities.h

@@ -135,6 +135,19 @@ struct OpenGlStateDispatch {
     OpenGlBlendEquationSeparateFn blend_equation_separate = nullptr;
 };
 
+struct OpenGlRuntimeInfo {
+    const char* version = "";
+    const char* vendor = "";
+    const char* renderer = "";
+    const char* shading_language_version = "";
+};
+
+using OpenGlStringQueryFn = const char* (*)(std::uint32_t name) noexcept;
+
+struct OpenGlRuntimeInfoDispatch {
+    OpenGlStringQueryFn get_string = nullptr;
+};
+
 [[nodiscard]] OpenGlCapabilities detect_opengl_capabilities(
     std::span<const std::string_view> extensions,
     OpenGlRuntime runtime) noexcept;
@@ -142,6 +155,8 @@ struct OpenGlStateDispatch {
     OpenGlCapabilities capabilities) noexcept;
 [[nodiscard]] OpenGlInitialState panopainter_initial_state() noexcept;
 [[nodiscard]] pp::foundation::Status apply_panopainter_initial_state(OpenGlStateDispatch dispatch) noexcept;
+[[nodiscard]] pp::foundation::Result<OpenGlRuntimeInfo> query_opengl_runtime_info(
+    OpenGlRuntimeInfoDispatch dispatch) noexcept;
 
 [[nodiscard]] std::uint32_t extension_count_query() noexcept;
 [[nodiscard]] std::uint32_t extension_string_name() noexcept;

tests/renderer_gl/capabilities_tests.cpp

@@ -25,6 +25,7 @@ struct RecordedOpenGlStateCall {
 };
 
 std::vector<RecordedOpenGlStateCall> recorded_state_calls;
+std::vector<std::uint32_t> recorded_string_queries;
 
 void record_enable(std::uint32_t state) noexcept
 {
@@ -60,6 +61,23 @@ void record_blend_equation_separate(std::uint32_t color_equation, std::uint32_t
     });
 }
 
+const char* record_string_query(std::uint32_t name) noexcept
+{
+    recorded_string_queries.push_back(name);
+    switch (name) {
+    case 0x1F02U:
+        return "test-version";
+    case 0x1F00U:
+        return "test-vendor";
+    case 0x1F01U:
+        return "test-renderer";
+    case 0x8B8CU:
+        return "test-glsl";
+    default:
+        return "unexpected";
+    }
+}
+
 void detects_common_extension_capabilities(pp::tests::Harness& h)
 {
     constexpr std::array<std::string_view, 2> extensions {
@@ -738,6 +756,35 @@ void rejects_incomplete_app_initialization_state_dispatch(pp::tests::Harness& h)
     PP_EXPECT(h, status.code == pp::foundation::StatusCode::invalid_argument);
 }
 
+void queries_app_runtime_info(pp::tests::Harness& h)
+{
+    recorded_string_queries.clear();
+
+    const auto result = pp::renderer::gl::query_opengl_runtime_info(
+        pp::renderer::gl::OpenGlRuntimeInfoDispatch {
+            .get_string = record_string_query,
+        });
+
+    PP_EXPECT(h, result.ok());
+    PP_EXPECT(h, recorded_string_queries.size() == 4U);
+    PP_EXPECT(h, recorded_string_queries[0] == 0x1F02U);
+    PP_EXPECT(h, recorded_string_queries[1] == 0x1F00U);
+    PP_EXPECT(h, recorded_string_queries[2] == 0x1F01U);
+    PP_EXPECT(h, recorded_string_queries[3] == 0x8B8CU);
+    PP_EXPECT(h, std::strcmp(result.value().version, "test-version") == 0);
+    PP_EXPECT(h, std::strcmp(result.value().vendor, "test-vendor") == 0);
+    PP_EXPECT(h, std::strcmp(result.value().renderer, "test-renderer") == 0);
+    PP_EXPECT(h, std::strcmp(result.value().shading_language_version, "test-glsl") == 0);
+}
+
+void rejects_incomplete_app_runtime_info_dispatch(pp::tests::Harness& h)
+{
+    const auto result = pp::renderer::gl::query_opengl_runtime_info(pp::renderer::gl::OpenGlRuntimeInfoDispatch {});
+
+    PP_EXPECT(h, !result.ok());
+    PP_EXPECT(h, result.status().code == pp::foundation::StatusCode::invalid_argument);
+}
+
 void maps_renderer_viewports_and_scissors(pp::tests::Harness& h)
 {
     const auto viewport = pp::renderer::gl::viewport_for_renderer_viewport(
@@ -1114,6 +1161,8 @@ int main()
     harness.run("maps_app_initialization_parameters", maps_app_initialization_parameters);
     harness.run("applies_app_initialization_state", applies_app_initialization_state);
     harness.run("rejects_incomplete_app_initialization_state_dispatch", rejects_incomplete_app_initialization_state_dispatch);
+    harness.run("queries_app_runtime_info", queries_app_runtime_info);
+    harness.run("rejects_incomplete_app_runtime_info_dispatch", rejects_incomplete_app_runtime_info_dispatch);
     harness.run("maps_renderer_viewports_and_scissors", maps_renderer_viewports_and_scissors);
     harness.run("maps_renderer_blend_state_tokens", maps_renderer_blend_state_tokens);
     harness.run("maps_renderer_color_write_masks", maps_renderer_color_write_masks);