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Diffstat (limited to 'src/osd/modules/render/bgfx/uniformreader.cpp')
-rw-r--r--src/osd/modules/render/bgfx/uniformreader.cpp45
1 files changed, 45 insertions, 0 deletions
diff --git a/src/osd/modules/render/bgfx/uniformreader.cpp b/src/osd/modules/render/bgfx/uniformreader.cpp
new file mode 100644
index 00000000000..f1447be7696
--- /dev/null
+++ b/src/osd/modules/render/bgfx/uniformreader.cpp
@@ -0,0 +1,45 @@
+#include "uniformreader.h"
+#include "uniform.h"
+
+const uniform_reader::string_to_enum uniform_reader::TYPE_NAMES[uniform_reader::TYPE_COUNT] = {
+ { "int", bgfx::UniformType::Int1 },
+ { "vec4", bgfx::UniformType::Vec4 },
+ { "mat3", bgfx::UniformType::Mat3 },
+ { "mat4", bgfx::UniformType::Mat4 },
+ { "camera", bgfx::UniformType::Mat4 }
+};
+
+bgfx_uniform* uniform_reader::read_from_value(const Value& value)
+{
+ assert(value.HasMember("name"));
+ assert(value["name"].IsString());
+ const char* name = value["name"].GetString();
+
+ assert(value.HasMember("type"));
+ bgfx::UniformType::Enum type = bgfx::UniformType::Enum(get_enum_from_value(value, "type", bgfx::UniformType::Vec4, TYPE_NAMES, TYPE_COUNT));
+ const size_t type_size = bgfx_uniform::get_size_for_type(type);
+
+ assert(value.HasMember("values"));
+ assert(value["values"].IsArray());
+ const Value& value_array = value["values"];
+ const size_t array_size = value_array.Size() * sizeof(float);
+
+ const size_t alloc_size = (type_size > array_size) ? type_size : array_size;
+ float* data = reinterpret_cast<float*>(new char[alloc_size]);
+
+ unsigned int index = 0;
+ for (; index < type_size / 4 && index < value_array.Size(); index++)
+ {
+ data[index] = (float)value_array[index].GetDouble();
+ }
+
+ for (; index < type_size / 4; index++) {
+ data[index] = 0.0f;
+ }
+
+ bgfx_uniform* uniform = new bgfx_uniform(name, type);
+ uniform->set((void*)data, type_size);
+ delete [] data;
+
+ return uniform;
+}