Capture renderer draw mesh inputs

docs/modernization/build-inventory.md

@@ -289,12 +289,12 @@ Known local toolchain state:
   sampler-state binding, texture-upload byte counts, readback bounds,
   frame-capture sources, destination buffer sizes, and render-target blit
   regions, records render/scissor/depth/blend/texture-bind/sampler-bind/upload/
-  readback/frame-capture/blit commands, and records trace markers without a
+  readback/frame-capture/blit commands, draw mesh inputs, and records trace
-  window or GL context.
+  markers without a window or GL context.
 - `pano_cli record-render` exposes the recording renderer through JSON
   automation, including scissor/depth/blend/texture-bind/sampler-bind/upload/
-  readback/frame-capture/blit command and byte totals, and is covered by
+  readback/frame-capture/blit command and byte totals plus draw vertex/index
-  `pano_cli_record_render_smoke` plus
+  totals, and is covered by `pano_cli_record_render_smoke` plus
   `pano_cli_record_render_rejects_oversized_target`.
 - `pano_cli simulate-document-history` exposes `pp_document::DocumentHistory`
   apply/undo/redo state through JSON automation and is covered by

docs/modernization/roadmap.md

@@ -725,7 +725,7 @@ Results:
   command-order validation, render-target blit validation, texture-slot binding
   validation, blend-state validation, scissor-state validation, recording
   scissor/depth/blend/texture/sampler-bind/upload/readback/frame-capture/blit
-  command capture, and invalid catalog rejection.
+  command capture, draw mesh-input capture, and invalid catalog rejection.
 - `pp_paint_renderer_compositor_tests` passed.
 - `pp_ui_core_color_tests` passed.
 - `pp_ui_core_layout_value_tests` passed.
@@ -822,14 +822,14 @@ Results:
   command-order/scissor-state/depth-state/blend-state/texture-bind/
   sampler-bind/texture-upload/readback/frame-capture/blit validation; it
   records commands, trace markers, scissor state, depth state, blend state,
-  texture/sampler binds, uploads/readbacks, frame captures, and render-target
+  texture/sampler binds, draw mesh inputs, uploads/readbacks, frame captures,
-  blits, giving automation a backend-neutral render path that does not require
+  and render-target blits, giving automation a backend-neutral render path that
-  a window or GL context.
+  does not require a window or GL context.
 - `pano_cli record-render` exercises that headless recording renderer and emits
   JSON command counts, target dimensions, backend name, trace/draw summary, and
-  scissor/depth/blend-state plus texture/sampler-bind/upload/readback/
+  draw vertex/index totals, scissor/depth/blend-state plus texture/sampler-bind/
-  frame-capture/blit command/byte totals for agent automation, with an
+  upload/readback/frame-capture/blit command/byte totals for agent automation,
-  expected-failure smoke for oversized render/readback targets.
+  with an expected-failure smoke for oversized render/readback targets.
 - `pano_cli simulate-document-history` exercises pure document history
   apply/undo/redo behavior and emits JSON layer/frame/history state for agent
   automation.

src/renderer_api/recording_renderer.cpp

@@ -96,6 +96,7 @@ pp::foundation::Status RecordingCommandContext::begin_render_pass(
     in_render_pass_ = true;
     shader_bound_ = false;
     mesh_bound_ = false;
+    active_mesh_ = MeshDesc {};
     push_command(commands_, RecordedRenderCommand {
         .kind = RecordedRenderCommandKind::begin_render_pass,
         .target_desc = active_target_,
@@ -256,6 +257,7 @@ pp::foundation::Status RecordingCommandContext::bind_mesh(IMesh& mesh) noexcept
     }
 
     mesh_bound_ = true;
+    active_mesh_ = desc;
     push_command(commands_, RecordedRenderCommand {
         .kind = RecordedRenderCommandKind::bind_mesh,
         .mesh_desc = desc,
@@ -277,6 +279,7 @@ pp::foundation::Status RecordingCommandContext::draw() noexcept
 
     push_command(commands_, RecordedRenderCommand {
         .kind = RecordedRenderCommandKind::draw,
+        .mesh_desc = active_mesh_,
     });
     return pp::foundation::Status::success();
 }
@@ -421,6 +424,7 @@ void RecordingCommandContext::end_render_pass() noexcept
     in_render_pass_ = false;
     shader_bound_ = false;
     mesh_bound_ = false;
+    active_mesh_ = MeshDesc {};
 }
 
 bool RecordingCommandContext::in_render_pass() const noexcept

src/renderer_api/recording_renderer.h

@@ -143,6 +143,7 @@ public:
 private:
     std::vector<RecordedRenderCommand>* commands_ = nullptr;
     TextureDesc active_target_ {};
+    MeshDesc active_mesh_ {};
     bool in_render_pass_ = false;
     bool shader_bound_ = false;
     bool mesh_bound_ = false;

tests/CMakeLists.txt

@@ -365,7 +365,7 @@ if(TARGET pano_cli)
         COMMAND pano_cli record-render --width 32 --height 16)
     set_tests_properties(pano_cli_record_render_smoke PROPERTIES
         LABELS "renderer;integration;desktop-fast"
-        PASS_REGULAR_EXPRESSION "\"backend\":\"recording\".*\"width\":32.*\"height\":16.*\"commands\":16.*\"drawCommands\":1.*\"scissorCommands\":1.*\"blendCommands\":1.*\"depthCommands\":1.*\"bindTextureCommands\":1.*\"bindSamplerCommands\":1.*\"boundTextureBytes\":2048.*\"uploadCommands\":1.*\"uploadBytes\":4.*\"readbackCommands\":1.*\"readbackBytes\":2048.*\"captureCommands\":1.*\"captureBytes\":2048.*\"blitCommands\":1.*\"blitSourceBytes\":2048.*\"blitDestinationBytes\":2048")
+        PASS_REGULAR_EXPRESSION "\"backend\":\"recording\".*\"width\":32.*\"height\":16.*\"commands\":16.*\"drawCommands\":1.*\"drawVertices\":3.*\"drawIndices\":3.*\"scissorCommands\":1.*\"blendCommands\":1.*\"depthCommands\":1.*\"bindTextureCommands\":1.*\"bindSamplerCommands\":1.*\"boundTextureBytes\":2048.*\"uploadCommands\":1.*\"uploadBytes\":4.*\"readbackCommands\":1.*\"readbackBytes\":2048.*\"captureCommands\":1.*\"captureBytes\":2048.*\"blitCommands\":1.*\"blitSourceBytes\":2048.*\"blitDestinationBytes\":2048")
 
     add_test(NAME pano_cli_record_render_rejects_oversized_target
         COMMAND "${CMAKE_COMMAND}"

tests/renderer_api/renderer_api_tests.cpp

@@ -878,7 +878,7 @@ void recording_renderer_records_valid_command_sequences(pp::tests::Harness& h)
         .render_target = true,
     });
     RecordingShaderProgram shader("recorded-shader");
-    RecordingMesh mesh(MeshDesc { .vertex_count = 3, .index_count = 0, .topology = PrimitiveTopology::triangles });
+    RecordingMesh mesh(MeshDesc { .vertex_count = 3, .index_count = 3, .topology = PrimitiveTopology::triangles });
 
     PP_EXPECT(h, device.backend_name() == std::string_view("recording"));
     device.trace()->marker("renderer", "frame");
@@ -952,7 +952,11 @@ void recording_renderer_records_valid_command_sequences(pp::tests::Harness& h)
     PP_EXPECT(h, recorded_render_command_kind_name(commands[8].kind) == std::string_view("bind_sampler"));
     PP_EXPECT(h, commands[9].kind == RecordedRenderCommandKind::bind_mesh);
     PP_EXPECT(h, commands[9].mesh_desc.vertex_count == 3U);
+    PP_EXPECT(h, commands[9].mesh_desc.index_count == 3U);
     PP_EXPECT(h, commands[10].kind == RecordedRenderCommandKind::draw);
+    PP_EXPECT(h, commands[10].mesh_desc.vertex_count == 3U);
+    PP_EXPECT(h, commands[10].mesh_desc.index_count == 3U);
+    PP_EXPECT(h, commands[10].mesh_desc.topology == PrimitiveTopology::triangles);
     PP_EXPECT(h, commands[11].kind == RecordedRenderCommandKind::end_render_pass);
     PP_EXPECT(h, recorded_render_command_kind_name(commands[10].kind) == std::string_view("draw"));
 

tools/pano_cli/main.cpp

@@ -2237,7 +2237,7 @@ int record_render(int argc, char** argv)
     pp::renderer::RecordingShaderProgram shader("pano-cli-record-render");
     pp::renderer::RecordingMesh mesh(pp::renderer::MeshDesc {
         .vertex_count = 3,
-        .index_count = 0,
+        .index_count = 3,
         .topology = pp::renderer::PrimitiveTopology::triangles,
     });
 
@@ -2391,6 +2391,8 @@ int record_render(int argc, char** argv)
     std::size_t capture_commands = 0;
     std::size_t blit_commands = 0;
     std::size_t trace_markers = 0;
+    std::uint64_t draw_vertices = 0;
+    std::uint64_t draw_indices = 0;
     std::uint64_t upload_bytes = 0;
     std::uint64_t bound_texture_bytes = 0;
     std::uint64_t readback_bytes = 0;
@@ -2401,6 +2403,8 @@ int record_render(int argc, char** argv)
     for (const auto& command : commands) {
         if (command.kind == pp::renderer::RecordedRenderCommandKind::draw) {
             ++draw_commands;
+            draw_vertices += command.mesh_desc.vertex_count;
+            draw_indices += command.mesh_desc.index_count;
         } else if (command.kind == pp::renderer::RecordedRenderCommandKind::set_scissor) {
             ++scissor_commands;
         } else if (command.kind == pp::renderer::RecordedRenderCommandKind::set_blend_state) {
@@ -2440,6 +2444,8 @@ int record_render(int argc, char** argv)
               << ",\"format\":\"rgba8\"}"
               << ",\"commands\":" << commands.size()
               << ",\"drawCommands\":" << draw_commands
+              << ",\"drawVertices\":" << draw_vertices
+              << ",\"drawIndices\":" << draw_indices
               << ",\"scissorCommands\":" << scissor_commands
               << ",\"blendCommands\":" << blend_commands
               << ",\"depthCommands\":" << depth_commands