summaryrefslogtreecommitdiffstatshomepage
path: root/src/osd/modules/render/bgfx/targetreader.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/osd/modules/render/bgfx/targetreader.cpp')
-rw-r--r--src/osd/modules/render/bgfx/targetreader.cpp87
1 files changed, 87 insertions, 0 deletions
diff --git a/src/osd/modules/render/bgfx/targetreader.cpp b/src/osd/modules/render/bgfx/targetreader.cpp
new file mode 100644
index 00000000000..1f375155751
--- /dev/null
+++ b/src/osd/modules/render/bgfx/targetreader.cpp
@@ -0,0 +1,87 @@
+// 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 "targetreader.h"
+#include "targetmanager.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 }
+};
+
+bool target_reader::read_from_value(const Value& value, std::string prefix, target_manager& targets, osd_options& options, uint32_t screen_width, uint32_t screen_height)
+{
+ if (!validate_parameters(value, prefix))
+ {
+ return false;
+ }
+
+ 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);
+ bool prescale = get_bool(value, "prescale", false);
+ bool output = get_bool(value, "output", false);
+
+ uint16_t width = 0;
+ uint16_t height = 0;
+ switch (mode)
+ {
+ case TARGET_STYLE_GUEST:
+ width = targets.guest_width();
+ height = targets.guest_height();
+ break;
+ case TARGET_STYLE_NATIVE:
+ width = screen_width;
+ height = screen_height;
+ break;
+ case TARGET_STYLE_CUSTOM:
+ if (!READER_CHECK(value.HasMember("width"), (prefix + "Target '" + target_name + "': Must have numeric value 'width'\n").c_str())) return false;
+ if (!READER_CHECK(value["width"].IsNumber(), (prefix + "Target '" + target_name + "': Value 'width' must be a number\n").c_str())) return false;
+ if (!READER_CHECK(value.HasMember("height"), (prefix + "Target '" + target_name + "': Must have numeric value 'height'\n").c_str())) return false;
+ if (!READER_CHECK(value["height"].IsNumber(), (prefix + "Target '" + target_name + "': Value 'height' must be a number\n").c_str())) return false;
+ width = uint32_t(value["width"].GetDouble());
+ height = uint32_t(value["height"].GetDouble());
+ break;
+ }
+
+ uint32_t prescale_x = 1;
+ uint32_t prescale_y = 1;
+ if (prescale)
+ {
+ prescale_x = options.bgfx_prescale_x();
+ prescale_y = options.bgfx_prescale_y();
+ }
+
+ if (!output)
+ {
+ targets.create_target(target_name, bgfx::TextureFormat::RGBA8, width, height, prescale_x, prescale_y, mode, double_buffer, bilinear, output);
+ }
+
+ return true;
+}
+
+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("prescale") || value["prescale"].IsBool(), (prefix + "Value 'prescale' must be a boolean\n").c_str())) return false;
+ if (!READER_CHECK(!value.HasMember("output") || value["output"].IsBool(), (prefix + "Value 'output' must be a boolean\n").c_str())) return false;
+ return true;
+}