From 03e434e901cebf3b78bcba9ef9c7fe941012735e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Konstantin=20K=C3=A4fer?= <mail@kkaefer.com>
Date: Tue, 2 Apr 2019 14:11:37 +0200
Subject: [PATCH] [core] use float for storing opacity attribute

---
 src/mbgl/programs/attributes.hpp     | 2 +-
 src/mbgl/programs/symbol_program.hpp | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mbgl/programs/attributes.hpp b/src/mbgl/programs/attributes.hpp
index 803a9db50..003a3ae03 100644
--- a/src/mbgl/programs/attributes.hpp
+++ b/src/mbgl/programs/attributes.hpp
@@ -16,7 +16,7 @@ MBGL_DEFINE_ATTRIBUTE(int16_t, 2, label_pos);
 MBGL_DEFINE_ATTRIBUTE(int16_t, 2, anchor_pos);
 MBGL_DEFINE_ATTRIBUTE(uint16_t, 2, texture_pos);
 MBGL_DEFINE_ATTRIBUTE(int16_t,  4, normal_ed);
-MBGL_DEFINE_ATTRIBUTE(uint8_t, 1, fade_opacity);
+MBGL_DEFINE_ATTRIBUTE(float, 1, fade_opacity);
 MBGL_DEFINE_ATTRIBUTE(uint8_t, 2, placed);
 MBGL_DEFINE_ATTRIBUTE(uint16_t, 3, size);
 MBGL_DEFINE_ATTRIBUTE(float, 1, offset);
diff --git a/src/mbgl/programs/symbol_program.hpp b/src/mbgl/programs/symbol_program.hpp
index 158dee301..80e6245a0 100644
--- a/src/mbgl/programs/symbol_program.hpp
+++ b/src/mbgl/programs/symbol_program.hpp
@@ -231,7 +231,7 @@ public:
 
     static gfx::Vertex<SymbolOpacityAttributes> opacityVertex(bool placed, float opacity) {
         return {
-            {{ static_cast<uint8_t>((static_cast<uint8_t>(opacity * 127) << 1) | static_cast<uint8_t>(placed)) }}
+            {{ static_cast<float>((static_cast<uint8_t>(opacity * 127) << 1) | static_cast<uint8_t>(placed)) }}
         };
     }
 };