rename prepare => upload and determine passes per layer instead of per bucket

1 files changed, 31 insertions, 0 deletions

diff --git a/src/mbgl/renderer/render_pass.hpp b/src/mbgl/renderer/render_pass.hpp
new file mode 100644
index 0000000000..a298b8b57e
--- /dev/null
+++ b/src/mbgl/renderer/render_pass.hpp
@@ -0,0 +1,31 @@
+#ifndef MBGL_RENDERER_RENDER_PASS
+#define MBGL_RENDERER_RENDER_PASS
+
+#include <cstdint>
+#include <type_traits>
+
+namespace mbgl {
+
+enum class RenderPass : uint8_t {
+    None = 0,
+    Opaque = 1 << 0,
+    Translucent = 1 << 1,
+};
+
+constexpr inline RenderPass operator|(RenderPass a, RenderPass b) {
+    return static_cast<RenderPass>(static_cast<std::underlying_type<RenderPass>::type>(a) |
+                                   static_cast<std::underlying_type<RenderPass>::type>(b));
+}
+
+inline RenderPass operator|=(RenderPass& a, RenderPass b) {
+    return (a = a | b);
+}
+
+constexpr inline RenderPass operator&(RenderPass a, RenderPass b) {
+    return static_cast<RenderPass>(static_cast<std::underlying_type<RenderPass>::type>(a) &
+                                   static_cast<std::underlying_type<RenderPass>::type>(b));
+}
+
+}
+
+#endif