Add renderer texture upload contract

src/renderer_api/recording_renderer.h

@@ -13,6 +13,7 @@ enum class RecordedRenderCommandKind : std::uint8_t {
     bind_shader,
     bind_mesh,
     draw,
+    upload_texture,
     read_texture,
     capture_frame,
     end_render_pass,
@@ -27,6 +28,7 @@ struct RecordedRenderCommand {
     MeshDesc mesh_desc {};
     TextureDesc texture_desc {};
     ReadbackRegion readback_region {};
+    std::uint64_t upload_bytes = 0;
     std::uint64_t readback_bytes = 0;
     std::uint64_t capture_bytes = 0;
     const char* component = "";
@@ -93,6 +95,10 @@ public:
         ITexture2D& texture,
         ReadbackRegion region,
         IReadbackBuffer& destination) noexcept override;
+    [[nodiscard]] pp::foundation::Status upload_texture(
+        ITexture2D& texture,
+        ReadbackRegion region,
+        std::span<const std::byte> rgba_or_channel_bytes) noexcept override;
     [[nodiscard]] pp::foundation::Status capture_frame(
         IRenderTarget& target,
         IReadbackBuffer& destination) noexcept override;