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-rw-r--r--src/osd/modules/render/bgfx/slider.cpp65
1 files changed, 65 insertions, 0 deletions
diff --git a/src/osd/modules/render/bgfx/slider.cpp b/src/osd/modules/render/bgfx/slider.cpp
new file mode 100644
index 00000000000..76f093580bd
--- /dev/null
+++ b/src/osd/modules/render/bgfx/slider.cpp
@@ -0,0 +1,65 @@
+// license:BSD-3-Clause
+// copyright-holders:Ryan Holtz
+//============================================================
+//
+// slider.cpp - BGFX shader parameter slider
+//
+//============================================================
+
+#include "emu.h"
+
+#include "slider.h"
+
+bgfx_slider::bgfx_slider(slider_type type, std::string name, std::string description, void *defaults, void *min, void *max)
+ : m_type(type)
+ , m_name(name)
+ , m_description(description)
+{
+ m_data = global_alloc_array_clear<char>(storage_size(type));
+ m_min = global_alloc_array_clear<char>(storage_size(type));
+ m_max = global_alloc_array_clear<char>(storage_size(type));
+ memcpy(m_data, defaults, size(type));
+ memcpy(m_min, min, size(type));
+ memcpy(m_max, max, size(type));
+}
+
+bgfx_slider::~bgfx_slider()
+{
+ global_free(m_data);
+ global_free(m_min);
+ global_free(m_max);
+}
+
+size_t bgfx_slider::storage_size(slider_type type)
+{
+ switch(type)
+ {
+ case SLIDER_INT:
+ return 1 * sizeof(int);
+ case SLIDER_BOOL:
+ case SLIDER_FLOAT:
+ case SLIDER_COLOR:
+ case SLIDER_VEC2:
+ return 4 * sizeof(float);
+ default:
+ return 0;
+ }
+}
+
+size_t bgfx_slider::size(slider_type type)
+{
+ switch(type)
+ {
+ case SLIDER_INT:
+ return sizeof(int);
+ case SLIDER_BOOL:
+ case SLIDER_FLOAT:
+ return sizeof(float);
+ case SLIDER_COLOR:
+ return sizeof(float) * 3;
+ case SLIDER_VEC2:
+ return sizeof(float) * 2;
+ default:
+ return 0;
+ }
+}