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Diffstat (limited to 'src/osd/modules/render/bgfx/chainentryreader.cpp')
-rw-r--r--src/osd/modules/render/bgfx/chainentryreader.cpp56
1 files changed, 56 insertions, 0 deletions
diff --git a/src/osd/modules/render/bgfx/chainentryreader.cpp b/src/osd/modules/render/bgfx/chainentryreader.cpp
new file mode 100644
index 00000000000..39338359e81
--- /dev/null
+++ b/src/osd/modules/render/bgfx/chainentryreader.cpp
@@ -0,0 +1,56 @@
+// license:BSD-3-Clause
+// copyright-holders:Ryan Holtz
+//============================================================
+//
+// chainentryreader.cpp - BGFX chain entry JSON reader
+//
+//============================================================
+
+#include <string>
+
+#include "emu.h"
+
+#include "chainentryreader.h"
+
+#include "texturemanager.h"
+#include "targetmanager.h"
+#include "effectmanager.h"
+#include "chainentry.h"
+#include "inputpair.h"
+
+bgfx_chain_entry* chain_entry_reader::read_from_value(const Value& value, texture_manager& textures, target_manager& targets, effect_manager& effects)
+{
+ validate_parameters(value);
+
+ bgfx_effect* effect = effects.effect(value["effect"].GetString());
+
+ std::vector<bgfx_input_pair> inputs;
+ if (value.HasMember("input"))
+ {
+ const Value& input_array = value["input"];
+ for (UINT32 i = 0; i < input_array.Size(); i++)
+ {
+ std::string sampler = input_array[i]["sampler"].GetString();
+ std::string texture = input_array[i]["texture"].GetString();
+ inputs.push_back(bgfx_input_pair(i, sampler, textures.texture(texture)));
+ }
+ }
+
+ bgfx_target* output = targets.target(value["output"].GetString());
+
+ return new bgfx_chain_entry(value["name"].GetString(), effect, inputs, output);
+}
+
+void chain_entry_reader::validate_parameters(const Value& value)
+{
+ assert(value.HasMember("effect"));
+ assert(value["effect"].IsString());
+ if (value.HasMember("name"))
+ {
+ assert(value["name"].IsString());
+ }
+ assert(value.HasMember("shader"));
+ assert(value["shader"].IsString());
+ assert(value.HasMember("output"));
+ assert(value["output"].IsString());
+} \ No newline at end of file