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author therealmogminer@gmail.com <therealmogminer@gmail.com>2016-03-23 17:55:55 +0100
committer therealmogminer@gmail.com <therealmogminer@gmail.com>2016-03-23 17:55:55 +0100
commitba0a1d8d5218804bc1d5b09d5b3fa8fcd537f0bf (patch)
tree9fe5ca6f9f6352f724ea9a26fff5ebda23576607 /src/osd/modules/render/bgfx/timeparameter.cpp
parentd0867ac3f2bdcfd4d1d2361ce8b6408a185908f4 (diff)
parent5ed9f938ea322d386e949d2752892651d9ee9fde (diff)
Merge bgfx_shader into master, nw
Diffstat (limited to 'src/osd/modules/render/bgfx/timeparameter.cpp')
-rw-r--r--src/osd/modules/render/bgfx/timeparameter.cpp33
1 files changed, 33 insertions, 0 deletions
diff --git a/src/osd/modules/render/bgfx/timeparameter.cpp b/src/osd/modules/render/bgfx/timeparameter.cpp
new file mode 100644
index 00000000000..f1f10ce700b
--- /dev/null
+++ b/src/osd/modules/render/bgfx/timeparameter.cpp
@@ -0,0 +1,33 @@
+// license:BSD-3-Clause
+// copyright-holders:Ryan Holtz
+//============================================================
+//
+// timeparameter.cpp - Time-based dynamic shader param
+//
+//============================================================
+
+#include "timeparameter.h"
+
+bgfx_time_parameter::bgfx_time_parameter(std::string name, parameter_type type, double limit)
+ : bgfx_parameter(name, type)
+ , m_current_time(0)
+ , m_limit(limit)
+{
+}
+
+float bgfx_time_parameter::value()
+{
+ return float(m_current_time * 1000.0 * 1000.0);
+}
+
+void bgfx_time_parameter::tick(double delta)
+{
+ m_current_time += delta;
+ if (m_limit != 0)
+ {
+ while (m_current_time >= m_limit)
+ {
+ m_current_time -= m_limit;
+ }
+ }
+}