// license:BSD-3-Clause // copyright-holders:Ryan Holtz //============================================================ // // targetreader.cpp - BGFX target JSON reader // //============================================================ #include #include "emu.h" #include #include "chainmanager.h" #include "targetreader.h" #include "target.h" const target_reader::string_to_enum target_reader::STYLE_NAMES[target_reader::STYLE_COUNT] = { { "guest", TARGET_STYLE_GUEST }, { "native", TARGET_STYLE_NATIVE }, { "custom", TARGET_STYLE_CUSTOM } }; bgfx_target* target_reader::read_from_value(const Value& value, std::string prefix, chain_manager& chains, uint32_t screen_index) { if (!validate_parameters(value, prefix)) { return nullptr; } std::string target_name = value["name"].GetString(); uint32_t mode = uint32_t(get_enum_from_value(value, "mode", TARGET_STYLE_NATIVE, STYLE_NAMES, STYLE_COUNT)); bool bilinear = get_bool(value, "bilinear", true); bool double_buffer = get_bool(value, "doublebuffer", true); int scale = 1; if (value.HasMember("scale")) { scale = int(floor(value["scale"].GetDouble() + 0.5)); } uint16_t width = 0; uint16_t height = 0; switch (mode) { case TARGET_STYLE_GUEST: width = chains.targets().width(TARGET_STYLE_GUEST, screen_index); height = chains.targets().height(TARGET_STYLE_GUEST, screen_index); break; case TARGET_STYLE_NATIVE: width = chains.targets().width(TARGET_STYLE_NATIVE, screen_index); height = chains.targets().height(TARGET_STYLE_NATIVE, screen_index); break; case TARGET_STYLE_CUSTOM: if (!READER_CHECK(value.HasMember("width"), (prefix + "Target '" + target_name + "': Must have numeric value 'width'\n").c_str())) return nullptr; if (!READER_CHECK(value["width"].IsNumber(), (prefix + "Target '" + target_name + "': Value 'width' must be a number\n").c_str())) return nullptr; if (!READER_CHECK(value.HasMember("height"), (prefix + "Target '" + target_name + "': Must have numeric value 'height'\n").c_str())) return nullptr; if (!READER_CHECK(value["height"].IsNumber(), (prefix + "Target '" + target_name + "': Value 'height' must be a number\n").c_str())) return nullptr; width = uint16_t(value["width"].GetDouble()); height = uint16_t(value["height"].GetDouble()); break; } return chains.targets().create_target(target_name, bgfx::TextureFormat::RGBA8, width, height, mode, double_buffer, bilinear, scale, screen_index); } bool target_reader::validate_parameters(const Value& value, std::string prefix) { if (!READER_CHECK(value.HasMember("name"), (prefix + "Must have string value 'name'\n").c_str())) return false; if (!READER_CHECK(value["name"].IsString(), (prefix + "Value 'name' must be a string\n").c_str())) return false; if (!READER_CHECK(value.HasMember("mode"), (prefix + "Must have string enum 'mode'\n").c_str())) return false; if (!READER_CHECK(value["mode"].IsString(), (prefix + "Value 'mode' must be a string (what screens does this apply to?)\n").c_str())) return false; if (!READER_CHECK(!value.HasMember("bilinear") || value["bilinear"].IsBool(), (prefix + "Value 'bilinear' must be a boolean\n").c_str())) return false; if (!READER_CHECK(!value.HasMember("doublebuffer") || value["doublebuffer"].IsBool(), (prefix + "Value 'doublebuffer' must be a boolean\n").c_str())) return false; if (!READER_CHECK(!value.HasMember("scale") || value["scale"].IsNumber(), (prefix + "Value 'scale' must be a numeric value\n").c_str())) return false; return true; }