// license:BSD-3-Clause // copyright-holders:Ryan Holtz //================================================================== // // valueuniformreader.cpp - BGFX chain entry value mapper reader // //================================================================== #include "valueuniformreader.h" #include "entryuniform.h" #include "valueuniform.h" bgfx_entry_uniform* value_uniform_reader::read_from_value(const Value& value, const std::string &prefix, bgfx_uniform* uniform) { if (!validate_parameters(value, prefix)) { return nullptr; } float values[4]; int count = 1; if (value["value"].IsNumber()) { values[0] = float(value["value"].GetDouble()); } else { const Value& value_array = value["value"]; count = int(value_array.Size()); for (int i = 0; i < count; i++) { values[i] = float(value_array[i].GetDouble()); } } return new bgfx_value_uniform(uniform, values, count); } bool value_uniform_reader::validate_parameters(const Value& value, const std::string &prefix) { if (!READER_CHECK(value.HasMember("value"), "%sMust have string value 'value' (what value is being assigned?)\n", prefix)) return false; if (!READER_CHECK(value["value"].IsArray() || value["value"].IsNumber(), "%sValue 'value' must be numeric or an array\n", prefix)) return false; return true; }