1 files changed, 0 insertions, 81 deletions
diff --git a/src/mbgl/renderer/frame_history.cpp b/src/mbgl/renderer/frame_history.cpp
deleted file mode 100644
index de153b6963..0000000000
--- a/src/mbgl/renderer/frame_history.cpp
+++ /dev/null
@@ -1,81 +0,0 @@
-#include <mbgl/renderer/frame_history.hpp>
-#include <mbgl/math/minmax.hpp>
-#include <mbgl/gl/context.hpp>
-
-#include <cassert>
-
-namespace mbgl {
-
-FrameHistory::FrameHistory() {
-    changeOpacities.fill(0);
-    opacities.fill(0);
-}
-
-void FrameHistory::record(const TimePoint& now, float zoom, const Duration& duration) {
-
-    int16_t zoomIndex = std::floor(zoom * 10.0);
-
-    if (firstFrame) {
-        changeTimes.fill(now);
-
-        for (int16_t z = 0; z <= zoomIndex; z++) {
-            opacities.data[z] = 255u;
-        }
-        firstFrame = false;
-    }
-
-    if (zoomIndex < previousZoomIndex) {
-        for (int16_t z = zoomIndex + 1; z <= previousZoomIndex; z++) {
-            changeTimes[z] = now;
-            changeOpacities[z] = opacities.data[z];
-        }
-    } else {
-        for (int16_t z = zoomIndex; z > previousZoomIndex; z--) {
-            changeTimes[z] = now;
-            changeOpacities[z] = opacities.data[z];
-        }
-    }
-
-    for (int16_t z = 0; z <= 255; z++) {
-        const std::chrono::duration<float> timeDiff = now - changeTimes[z];
-        const int32_t opacityChange = (duration == Milliseconds(0) ? 1 : (timeDiff / duration)) * 255;
-        const uint8_t opacity = z <= zoomIndex
-            ? util::min(255, changeOpacities[z] + opacityChange)
-            : util::max(0, changeOpacities[z] - opacityChange);
-        if (opacities.data[z] != opacity) {
-            opacities.data[z] = opacity;
-            dirty = true;
-        }
-    }
-
-    if (zoomIndex != previousZoomIndex) {
-        previousZoomIndex = zoomIndex;
-        previousTime = now;
-    }
-
-    time = now;
-}
-
-bool FrameHistory::needsAnimation(const Duration& duration) const {
-    return (time - previousTime) < duration;
-}
-
-void FrameHistory::upload(gl::Context& context, uint32_t unit) {
-    if (!texture) {
-        texture = context.createTexture(opacities, unit);
-    } else if (dirty) {
-        context.updateTexture(*texture, opacities, unit);
-    }
-    dirty = false;
-}
-
-void FrameHistory::bind(gl::Context& context, uint32_t unit) {
-    upload(context, unit);
-    context.bindTexture(*texture, unit);
-}
-
-bool FrameHistory::isVisible(const float zoom) const {
-    return opacities.data[std::floor(zoom * 10)] != 0;
-}
-
-} // namespace mbgl