Using Posix Signals to trigger module reload, exposing more gltf properties to the gui

.gitignore

@@ -1,8 +1,7 @@
 .*.swp
 
 build/*
-cmake-build-debug/**
+cmake-build-*/**
-cmake-build-release/**
 tags
 
 3rdparty/glfw/docs/**

CMakeLists.txt

@@ -14,6 +14,13 @@ SET (CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
 # For YouCompleteMe
 SET (CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
+# Enable CCache
+find_program(CCACHE_FOUND ccache)
+if(CCACHE_FOUND)
+    SET_PROPERTY(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
+    SET_PROPERTY(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
+endif(CCACHE_FOUND)
+
 # Enable proper C++11 flags
 include(CheckCXXCompilerFlag)
 CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
@@ -37,6 +44,10 @@ add_definitions("-DIMGUI_IMPL_OPENGL_LOADER_GLAD")
 SET (CCD_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/libccd/src)
 SET (CCD_LIBRARY ccd)
 SET (BUILD_SHARED_LIBS TRUE)
+SET (FCL_BUILD_TESTS FALSE)
+SET (BUILD_TESTING OFF)
+SET (GLFW_BUILD_DOCS OFF)
+SET (GLFW_BUILD_EXAMPLES OFF)
 
 INCLUDE_DIRECTORIES (
 	${CMAKE_CURRENT_BINARY_DIR}
@@ -79,7 +90,7 @@ SET ( protot_SRCS
 	src/RuntimeModuleManager.cc
 	src/Utils.cc
 
-	3rdparty/glfw/deps/glad.c
+	3rdparty/glfw/deps/glad.cc
 	3rdparty/imgui/imgui.cpp
 	3rdparty/imgui/imgui_draw.cpp
 	3rdparty/imgui/imgui_widgets.cpp

src/RuntimeModuleManager.cc

@@ -93,7 +93,6 @@ bool RuntimeModuleManager::CheckModulesChanged() {
 	struct stat attr;
 
 	double current_time = gGetTimeSinceStart();
-	mNumUpdatesSinceLastModuleChange++;
 
 	for (int i = 0; i < mModules.size(); i++) {
 		RuntimeModule* module = mModules[i];
@@ -113,22 +112,15 @@ bool RuntimeModuleManager::CheckModulesChanged() {
 			module->mtime = attr.st_mtime;
 			module->mtimensec = attr.st_mtim.tv_nsec;
 			module->fsize = attr.st_size;
-			mNumUpdatesSinceLastModuleChange = 0;
 
 			gLog ("Detected file change of %s: new size %d",
 					module->name.c_str(), attr.st_size);
+			gLog ("Triggering reload");
+
+			return true;
 		}
 	}
 
-	// We have to delay the actual reload trigger to make
-	// sure all writes to the dynamic libraries are complete.
-	if (mNumUpdatesSinceLastModuleChange == 5) {
-		gLog ("Triggering reload");
-
-		return true;
-	}
-
-
 	return false;
 }
 

src/RuntimeModuleManager.h

@@ -22,7 +22,6 @@ struct RuntimeModule {
 
 struct RuntimeModuleManager {
 	std::vector<RuntimeModule*> mModules;
-	int mNumUpdatesSinceLastModuleChange = 0;
 	int mTargetFPS = 30;
 
 	void RegisterModule(const char* name);

src/main.cc

@@ -11,6 +11,7 @@
 #include <unistd.h>
 #include <iostream>
 #include <sstream>
+#include <signal.h>
 
 #include "Timer.h"
 #include "RuntimeModuleManager.h"
@@ -66,6 +67,15 @@ static void key_callback(GLFWwindow* window, int key, int scancode, int action,
         glfwSetWindowShouldClose(window, GLFW_TRUE);
 }
 
+void signal_handler(int signo) {
+	gLog ("Received signal %d", signo);
+
+	if (gModuleManager->CheckModulesChanged()) {
+		gModuleManager->UnloadModules();
+		gModuleManager->LoadModules();
+	}
+}
+
 void mouse_scroll_callback(GLFWwindow* window, double xoffset, double yoffset) {
 	mouse_scroll_x += xoffset;
 	mouse_scroll_y += yoffset;
@@ -109,6 +119,10 @@ int main(void)
 
 	LoggingInit();
 
+	if (signal(SIGUSR1, signal_handler) == SIG_ERR) {
+		gLog ("Error registering signal handler!");
+	}
+
 	WriteSerializer out_serializer;
 	ReadSerializer in_serializer;
 
@@ -214,13 +228,6 @@ int main(void)
 		if (show_demo_window)
 			ImGui::ShowDemoWindow(&show_demo_window);
 
-		if (module_manager.CheckModulesChanged()) {
-			gLog("Detected module update at frame %d. Unloading all modules.", frame_counter);
-			module_manager.UnloadModules();
-			// We need to sleep to make sure we load the new files
-			module_manager.LoadModules();
-		}
-
 		frame_time_last = frame_time_current;
 		frame_time_current = glfwGetTime();
 		frame_delta_time = frame_time_current - frame_time_last;

src/modules/CMakeLists.txt

@@ -12,15 +12,6 @@ ADD_LIBRARY (TestModule SHARED
 	TestModule.cc
 	)
 
-# ADD_LIBRARY (CharacterModule SHARED
+TARGET_LINK_LIBRARIES ( TestModule
-# 	CharacterModule.cc
+	RenderModule
-# 	)
+	)
-# 
-# TARGET_LINK_LIBRARIES ( CharacterModule
-# 	RenderModule
-# 	)
-#
-# TARGET_LINK_LIBRARIES ( TestModule
-# 	CharacterModule
-# 	RenderModule
-# 	)

src/modules/RenderUtils.cc

@@ -841,6 +841,10 @@ VertexAttributeType AssetFile::GetVertexAttributeType(const std::string &attribu
 		attribute_type = VertexAttributeNormal;
 	} else if (attribute_string.compare("TEXCOORD_0") == 0) {
 		attribute_type = VertexAttributeTexCoord0;
+	} else if (attribute_string.compare("JOINTS_0") == 0) {
+		attribute_type = VertexAttributeBoneIndex0;
+	} else if (attribute_string.compare("WEIGHTS_0") == 0) {
+		attribute_type = VertexAttributeBoneWeights0;
 	} else {
 		attribute_type = VertexAttributeTypeCount;
 	}
@@ -973,6 +977,21 @@ void AssetFile::DrawGui() {
 			const tinygltf::Mesh& mesh = mGLTFModel.meshes[i];
 			ImGui::PushID("mesh");
 			if (ImGui::TreeNode((void*)(intptr_t)i, "[%d] %s", i, mesh.name.c_str())) {
+				for (int j = 0, m = mesh.primitives.size(); j < m; ++j) {
+					const tinygltf::Primitive& primitive
+						= mesh.primitives[j];
+					if (ImGui::TreeNode("Attributes")) {
+						std::map<std::string, int>::const_iterator iter = primitive.attributes.begin();
+						while (iter != primitive.attributes.end()) {
+							ImGui::Text("%s", iter->first.c_str());
+							iter ++;
+						}
+						ImGui::TreePop();
+					}
+					ImGui::Text("Indices %d", primitive.indices);
+					ImGui::Text("Material %d", primitive.material);
+					ImGui::Text("Mode %d", primitive.mode);
+				}
 				ImGui::TreePop();
 			}
 			ImGui::PopID();
@@ -985,16 +1004,59 @@ void AssetFile::DrawGui() {
 			const tinygltf::Node& node = mGLTFModel.nodes[i];
 			ImGui::PushID("node");
 			if (ImGui::TreeNode((void*)(intptr_t)i, "[%d] %s", i, node.name.c_str())) {
+				if (node.camera >= 0) {
+					ImGui::Text("Camera %d", node.camera);
+				}
+
+				if (node.mesh >= 0) {
+					ImGui::Text("Mesh %d", node.mesh);
+				}
+
+				if (node.skin >= 0) {
+					ImGui::Text("Skin %d", node.skin);
+				}
+
 				DrawNodeGui(node);
 				ImGui::TreePop();
 			}
+
 			ImGui::PopID();	
 		}
 		ImGui::TreePop();
 	}
+
+	if (ImGui::TreeNode("Skins")) {
+		for (int i = 0, n = mGLTFModel.skins.size(); i < n; ++i) {
+			const tinygltf::Skin& skin = mGLTFModel.skins[i];
+			ImGui::PushID("skin");
+			if (ImGui::TreeNode((void*)(intptr_t)i, "[%d] %s", i, skin.name.c_str())) {
+				ImGui::Text("Skeleton: %d", skin.skeleton);
+
+				if (ImGui::TreeNode("Joints")) {
+					for (int j = 0, m = skin.joints.size(); j < m; j++) {
+						ImGui::Text("%d", skin.joints[j]);
+					}
+					ImGui::TreePop();
+				}
+				ImGui::TreePop();
+			}
+			ImGui::PopID();
+		}
+		ImGui::TreePop();
+	}
 }
 
-
+//
+// Skeleton
+//
+void Skeleton::UpdateMatrices() {
+	int n = mParentIndex.size();
+	mMatrices[0] = mLocalTransforms[0].toMatrix();
+	for (int i = 1; i < n; i++) {
+		int parent_index = mParentIndex[i];
+		mMatrices[i] = mMatrices[parent_index] * mLocalTransforms[i].toMatrix();
+	}
+}
 
 //
 // Debug Draw Stuff

src/modules/RenderUtils.h

@@ -337,6 +337,8 @@ enum VertexAttributeType {
 	VertexAttributeNormal = 1,
 	VertexAttributeTexCoord0 = 2,
 	VertexAttributeColor = 3,
+	VertexAttributeBoneIndex0 = 4,
+	VertexAttributeBoneWeights0 = 5,
 	VertexAttributeTypeCount
 };
 
@@ -466,6 +468,125 @@ struct VertexArrayMesh {
 	void Draw(GLenum mode);
 };
 
+struct Skeleton {
+	std::vector<int> mParentIndex;
+	std::vector<Matrix44f> mMatrices;
+	std::vector<Transform> mLocalTransforms;
+
+	void UpdateMatrices();
+};
+
+struct SkinnedModel {
+	Skeleton mSkeleton;
+	std::vector<VertexArrayMesh> mMesh;	
+};
+
+struct SkinnedMesh {
+	struct VertexData {
+		union {
+			struct {
+				float x;
+				float y;
+				float z;
+				float w;
+				float nx;
+				float ny;
+				float nz;
+				float s;
+				float t;
+				GLubyte bone_idx0;
+				GLubyte bone_idx1;
+				GLubyte bone_idx2;
+				GLubyte bone_idx3;
+				float   bone_w0;
+				float   bone_w1;
+				float   bone_w2;
+				float   bone_w3;
+			};
+			struct {
+				float mCoords[4];
+				float mNormals[3];
+				float mTexCoords[2];
+				GLubyte mBoneIndices[4];
+				float mBoneWeights[4];
+			};
+		};
+
+		VertexData() :
+			x(0.0f),
+			y(0.0f),
+			z(0.0f),
+			w(0.0f),
+			nx(0.0f),
+			ny(0.0f),
+			nz(0.0f),
+			s(0.0f),
+			t(0.0f),
+			bone_idx0(0),
+			bone_idx1(0),
+			bone_idx2(0),
+			bone_idx3(0),
+			bone_w0(0),
+			bone_w1(0),
+			bone_w2(0),
+			bone_w3(0)
+			 {}
+
+		VertexData(
+				float x,
+				float y,
+				float z,
+				float w,
+				float nx,
+				float ny,
+				float nz,
+				float s,
+				float t,
+				GLubyte b0,
+				GLubyte b1,
+				GLubyte b2,
+				GLubyte b3,
+				float w0,
+				float w1,
+				float w2,
+				float w3
+				) :
+			x(x), y(y), z(z), w(w),
+			nx(nx), ny(ny), nz(nz),
+			s(s), t(t),
+			bone_idx0(b0), bone_idx1(b1), bone_idx2(b2), bone_idx3(b3),
+			bone_w0(w0), bone_w1(w1), bone_w2(w2), bone_w3(w3) {}
+
+		VertexData& operator= (const VertexData& data) {
+			x = data.x;
+			y = data.y;
+			z = data.z;
+			w = data.w;
+			nx = data.nx;
+			ny = data.ny;
+			nz = data.nz;
+			s = data.s;
+			t = data.t;
+			bone_idx0 = data.bone_idx0;
+			bone_idx1 = data.bone_idx1;
+			bone_idx2 = data.bone_idx2;
+			bone_idx3 = data.bone_idx3,
+			bone_w0 = data.bone_w0;
+			bone_w1 = data.bone_w1;
+			bone_w2 = data.bone_w2;
+			bone_w3 = data.bone_w3;
+			
+			return *this;
+		}
+	};
+
+	void Initialize(const int& size, GLenum usage);
+	void Cleanup();
+	GLuint AllocateMesh(const int& size);
+	void Bind();
+	bool IsBound();
+};
+
 struct AssetFile {
 	std::string mFilename;
 	tinygltf::Model mGLTFModel;

src/modules/autorebuild.sh

@@ -1,4 +1,5 @@
 inotifywait -q -m -e close_write ../../../src/modules |
 while read -r filename event; do
 	/usr/bin/make         # or "./$filename"
+	../../../scripts/trigger_reload.sh protot
 done