diff options
Diffstat (limited to 'services/surfaceflinger/RegionSamplingThread.cpp')
| -rw-r--r-- | services/surfaceflinger/RegionSamplingThread.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/services/surfaceflinger/RegionSamplingThread.cpp b/services/surfaceflinger/RegionSamplingThread.cpp index 718e996dae..35f11fc494 100644 --- a/services/surfaceflinger/RegionSamplingThread.cpp +++ b/services/surfaceflinger/RegionSamplingThread.cpp @@ -266,6 +266,7 @@ float getLuma(float r, float g, float b) { constexpr auto rec709_blue_primary = 0.0722f; return rec709_red_primary * r + rec709_green_primary * g + rec709_blue_primary * b; } +} // anonymous namespace float sampleArea(const uint32_t* data, int32_t stride, const Rect& area) { std::array<int32_t, 256> brightnessBuckets = {}; @@ -286,14 +287,13 @@ float sampleArea(const uint32_t* data, int32_t stride, const Rect& area) { int32_t accumulated = 0; size_t bucket = 0; - while (bucket++ < brightnessBuckets.size()) { + for (; bucket < brightnessBuckets.size(); bucket++) { accumulated += brightnessBuckets[bucket]; if (accumulated > majoritySampleNum) break; } return bucket / 255.0f; } -} // anonymous namespace std::vector<float> RegionSamplingThread::sampleBuffer( const sp<GraphicBuffer>& buffer, const Point& leftTop, |