don't waste memory

1 files changed, 28 insertions, 5 deletions

diff --git a/src/image.cpp b/src/image.cpp
index b2cd535..1dffcd9 100644
--- a/src/image.cpp
+++ b/src/image.cpp
@@ -197,17 +197,34 @@ void Image::rotate()
     rot_elapsed_ns += t.nsecsElapsed();
 }
 
-std::shared_ptr<Pixels> Image::sharedPixels()
+// std::shared_ptr<Pixels> Image::sharedPixels()
+// {
+//     t.start();
+
+//     static auto result = std::make_shared<Pixels>();
+//     result->counters = counters;
+
+//     std::transform(rotated_cw.cbegin(), rotated_cw.cend(), result->pixels.begin(), process_column);
+//     pix_elapsed_ns += t.nsecsElapsed();
+
+//     return result;
+// }
+
+Pixels &Image::getPixels()
 {
+    if (pixels)
+        return *pixels;
+
     t.start();
 
-    static auto result = std::make_shared<Pixels>();
-    result->counters = counters;
+    // overhead of this?
+    pixels = Pixels{};
+    pixels->counters = counters;
 
-    std::transform(rotated_cw.cbegin(), rotated_cw.cend(), result->pixels.begin(), process_column);
+    std::transform(rotated_cw.cbegin(), rotated_cw.cend(), pixels->pixels.begin(), process_column);
     pix_elapsed_ns += t.nsecsElapsed();
 
-    return result;
+    return *pixels;
 }
 
 void Image::copyFromData(const void *src, size_t size)
@@ -246,6 +263,12 @@ void Image::copyFromData(const void *src, size_t size)
     }
 }
 
+void Image::reset()
+{
+    counters = Counters{};
+    pixels = std::nullopt;
+}
+
 void Image::copy(data_t &dst, const radxa_data_t &src)
 {
     for (size_t i = 0; i < img_height; ++i) {