Validate snapshot face payloads

src/document/document.cpp

@@ -232,6 +232,23 @@ namespace {
     return pp::foundation::Status::success();
 }
 
+[[nodiscard]] pp::foundation::Status validate_frame_face_pixels(
+    std::span<const AnimationFrame> frames,
+    std::uint32_t document_width,
+    std::uint32_t document_height) noexcept
+{
+    for (const auto& frame : frames) {
+        for (const auto& pixels : frame.face_pixels) {
+            const auto pixels_status = validate_face_pixels(pixels, document_width, document_height);
+            if (!pixels_status.ok()) {
+                return pixels_status;
+            }
+        }
+    }
+
+    return pp::foundation::Status::success();
+}
+
 }
 
 pp::foundation::Result<CanvasDocument> CanvasDocument::create(DocumentConfig config)
@@ -308,6 +325,11 @@ pp::foundation::Result<CanvasDocument> CanvasDocument::create_from_snapshot(Docu
                 pp::foundation::Status::out_of_range("document layer frame count exceeds the configured limit"));
         }
 
+        const auto face_pixels_status = validate_frame_face_pixels(layer_frames, config.width, config.height);
+        if (!face_pixels_status.ok()) {
+            return pp::foundation::Result<CanvasDocument>::failure(face_pixels_status);
+        }
+
         for (const auto& frame_config : layer_frames) {
             const auto duration_status = validate_frame_duration(frame_config.duration_ms);
             if (!duration_status.ok()) {
@@ -333,6 +355,14 @@ pp::foundation::Result<CanvasDocument> CanvasDocument::create_from_snapshot(Docu
             return pp::foundation::Result<CanvasDocument>::failure(duration_status);
         }
 
+        const auto face_pixels_status = validate_frame_face_pixels(
+            std::span<const AnimationFrame>(&frame_config, 1),
+            config.width,
+            config.height);
+        if (!face_pixels_status.ok()) {
+            return pp::foundation::Result<CanvasDocument>::failure(face_pixels_status);
+        }
+
         document.frames_.push_back(frame_config);
     }