godot_plugin_jni.cpp 6.7 KB

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  1. /*************************************************************************/
  2. /* godot_plugin_jni.cpp */
  3. /*************************************************************************/
  4. /* This file is part of: */
  5. /* GODOT ENGINE */
  6. /* https://godotengine.org */
  7. /*************************************************************************/
  8. /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
  9. /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
  10. /* */
  11. /* Permission is hereby granted, free of charge, to any person obtaining */
  12. /* a copy of this software and associated documentation files (the */
  13. /* "Software"), to deal in the Software without restriction, including */
  14. /* without limitation the rights to use, copy, modify, merge, publish, */
  15. /* distribute, sublicense, and/or sell copies of the Software, and to */
  16. /* permit persons to whom the Software is furnished to do so, subject to */
  17. /* the following conditions: */
  18. /* */
  19. /* The above copyright notice and this permission notice shall be */
  20. /* included in all copies or substantial portions of the Software. */
  21. /* */
  22. /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
  23. /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
  24. /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  25. /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
  26. /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
  27. /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
  28. /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
  29. /*************************************************************************/
  30. #include "godot_plugin_jni.h"
  31. #include <core/engine.h>
  32. #include <core/error_macros.h>
  33. #include <core/project_settings.h>
  34. #include <platform/android/api/jni_singleton.h>
  35. #include <platform/android/jni_utils.h>
  36. #include <platform/android/string_android.h>
  37. static HashMap<String, JNISingleton *> jni_singletons;
  38. extern "C" {
  39. JNIEXPORT void JNICALL Java_org_godotengine_godot_plugin_GodotPlugin_nativeRegisterSingleton(JNIEnv *env, jclass clazz, jstring name, jobject obj) {
  40. String singname = jstring_to_string(name, env);
  41. JNISingleton *s = (JNISingleton *)ClassDB::instance("JNISingleton");
  42. s->set_instance(env->NewGlobalRef(obj));
  43. jni_singletons[singname] = s;
  44. Engine::get_singleton()->add_singleton(Engine::Singleton(singname, s));
  45. ProjectSettings::get_singleton()->set(singname, s);
  46. }
  47. JNIEXPORT void JNICALL Java_org_godotengine_godot_plugin_GodotPlugin_nativeRegisterMethod(JNIEnv *env, jclass clazz, jstring sname, jstring name, jstring ret, jobjectArray args) {
  48. String singname = jstring_to_string(sname, env);
  49. ERR_FAIL_COND(!jni_singletons.has(singname));
  50. JNISingleton *s = jni_singletons.get(singname);
  51. String mname = jstring_to_string(name, env);
  52. String retval = jstring_to_string(ret, env);
  53. Vector<Variant::Type> types;
  54. String cs = "(";
  55. int stringCount = env->GetArrayLength(args);
  56. for (int i = 0; i < stringCount; i++) {
  57. jstring string = (jstring)env->GetObjectArrayElement(args, i);
  58. const String rawString = jstring_to_string(string, env);
  59. types.push_back(get_jni_type(rawString));
  60. cs += get_jni_sig(rawString);
  61. }
  62. cs += ")";
  63. cs += get_jni_sig(retval);
  64. jclass cls = env->GetObjectClass(s->get_instance());
  65. jmethodID mid = env->GetMethodID(cls, mname.ascii().get_data(), cs.ascii().get_data());
  66. if (!mid) {
  67. print_line("Failed getting method ID " + mname);
  68. }
  69. s->add_method(mname, mid, types, get_jni_type(retval));
  70. }
  71. JNIEXPORT void JNICALL Java_org_godotengine_godot_plugin_GodotPlugin_nativeRegisterSignal(JNIEnv *env, jobject obj, jstring j_plugin_name, jstring j_signal_name, jobjectArray j_signal_param_types) {
  72. String singleton_name = jstring_to_string(j_plugin_name, env);
  73. ERR_FAIL_COND(!jni_singletons.has(singleton_name));
  74. JNISingleton *singleton = jni_singletons.get(singleton_name);
  75. String signal_name = jstring_to_string(j_signal_name, env);
  76. Vector<Variant::Type> types;
  77. int stringCount = env->GetArrayLength(j_signal_param_types);
  78. for (int i = 0; i < stringCount; i++) {
  79. jstring j_signal_param_type = (jstring)env->GetObjectArrayElement(j_signal_param_types, i);
  80. const String signal_param_type = jstring_to_string(j_signal_param_type, env);
  81. types.push_back(get_jni_type(signal_param_type));
  82. }
  83. singleton->add_signal(signal_name, types);
  84. }
  85. JNIEXPORT void JNICALL Java_org_godotengine_godot_plugin_GodotPlugin_nativeEmitSignal(JNIEnv *env, jobject obj, jstring j_plugin_name, jstring j_signal_name, jobjectArray j_signal_params) {
  86. String singleton_name = jstring_to_string(j_plugin_name, env);
  87. ERR_FAIL_COND(!jni_singletons.has(singleton_name));
  88. JNISingleton *singleton = jni_singletons.get(singleton_name);
  89. String signal_name = jstring_to_string(j_signal_name, env);
  90. int count = env->GetArrayLength(j_signal_params);
  91. ERR_FAIL_COND_MSG(count > VARIANT_ARG_MAX, "Maximum argument count exceeded!");
  92. Variant variant_params[VARIANT_ARG_MAX];
  93. const Variant *args[VARIANT_ARG_MAX];
  94. for (int i = 0; i < count; i++) {
  95. jobject j_param = env->GetObjectArrayElement(j_signal_params, i);
  96. variant_params[i] = _jobject_to_variant(env, j_param);
  97. args[i] = &variant_params[i];
  98. env->DeleteLocalRef(j_param);
  99. };
  100. singleton->emit_signal(signal_name, args, count);
  101. }
  102. JNIEXPORT void JNICALL Java_org_godotengine_godot_plugin_GodotPlugin_nativeRegisterGDNativeLibraries(JNIEnv *env, jobject obj, jobjectArray gdnlib_paths) {
  103. int gdnlib_count = env->GetArrayLength(gdnlib_paths);
  104. if (gdnlib_count == 0) {
  105. return;
  106. }
  107. // Retrieve the current list of gdnative libraries.
  108. Array singletons = Array();
  109. if (ProjectSettings::get_singleton()->has_setting("gdnative/singletons")) {
  110. singletons = ProjectSettings::get_singleton()->get("gdnative/singletons");
  111. }
  112. // Insert the libraries provided by the plugin
  113. for (int i = 0; i < gdnlib_count; i++) {
  114. jstring relative_path = (jstring)env->GetObjectArrayElement(gdnlib_paths, i);
  115. String path = "res://" + jstring_to_string(relative_path, env);
  116. if (!singletons.has(path)) {
  117. singletons.push_back(path);
  118. }
  119. env->DeleteLocalRef(relative_path);
  120. }
  121. // Insert the updated list back into project settings.
  122. ProjectSettings::get_singleton()->set("gdnative/singletons", singletons);
  123. }
  124. }