v1.0.0-rc.121 (#28)

This is an UNSTABLE release.

* jfjoch_broker: Report changes in the image buffer, so viewer doesn't reload constantly
* jfjoch_viewer: Improve performance of loading images
* jfjoch_viewer: Auto-throttle image loading in HTTP-sync / movie modes
* jfjoch_viewer: Auto-foreground calculated with histogram
* jfjoch_viewer: Fix rare segmentation fault

Reviewed-on: #28
Co-authored-by: Filip Leonarski <filip.leonarski@psi.ch>
Co-committed-by: Filip Leonarski <filip.leonarski@psi.ch>

tests/ImageBufferTest.cpp

@@ -100,6 +100,48 @@ TEST_CASE("ImageBuffer_Preview_Access") {
     REQUIRE(!buf_ctrl.GetImage(image_2_2, 2));
 }
 
+
+TEST_CASE("ImageBuffer_Counter") {
+    DiffractionExperiment experiment(DetJF(18,3,8,36));
+
+    ImageBuffer buf_ctrl(4*experiment.GetImageBufferLocationSize());
+    auto cnt_1 = buf_ctrl.GetStatus().current_counter;
+
+    buf_ctrl.StartMeasurement(experiment);
+    auto cnt_2 = buf_ctrl.GetStatus().current_counter;
+
+    ZeroCopyReturnValue *ret0 = buf_ctrl.GetImageSlot();
+    REQUIRE(ret0 != nullptr);
+    ret0->SetImageNumber(0);
+    ret0->release();
+
+    auto cnt_3 = buf_ctrl.GetStatus().current_counter;
+
+    ZeroCopyReturnValue *ret1 = buf_ctrl.GetImageSlot();
+    REQUIRE(ret1 != nullptr);
+    ret1->SetImageNumber(1);
+    ret1->release();
+
+    auto cnt_4 = buf_ctrl.GetStatus().current_counter;
+
+    REQUIRE(buf_ctrl.Finalize(std::chrono::microseconds(1)));
+    auto cnt_5 = buf_ctrl.GetStatus().current_counter;
+
+    CHECK(cnt_1 != cnt_2);
+    CHECK(cnt_1 != cnt_3);
+    CHECK(cnt_1 != cnt_4);
+    CHECK(cnt_1 != cnt_5);
+    CHECK(cnt_2 != cnt_3);
+    CHECK(cnt_2 != cnt_4);
+    CHECK(cnt_2 != cnt_5);
+    CHECK(cnt_3 != cnt_4);
+    CHECK(cnt_3 != cnt_5);
+    CHECK(cnt_4 != cnt_5);
+}
+
+
+
+
 TEST_CASE("ImageBuffer_Preview_Access_GetImage_MaxImage") {
     DiffractionExperiment experiment(DetJF(18,3,8,36));