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author Aaron Giles <aaron@aarongiles.com>2021-09-15 11:17:56 -0700
committer Aaron Giles <aaron@aarongiles.com>2021-09-15 11:17:56 -0700
commit798cd3131379dd63cbf36510130340ecff306f77 (patch)
tree4d6eb34ba17f53bc846d8dae155ce323357672e9 /3rdparty/bgfx/src/bgfx.cpp
parentde28f087ffe26ece88ef416ca7080f8d10d08398 (diff)
Update voodoo code to leverage new save_registrar instead of its own temporary system.save_structs
Diffstat (limited to '3rdparty/bgfx/src/bgfx.cpp')
0 files changed, 0 insertions, 0 deletions
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// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
//============================================================
//
//  targetreader.cpp - BGFX target JSON reader
//
//============================================================

#include <string>

#include "emu.h"
#include <modules/lib/osdobj_common.h>

#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;
}