add another example application

examples/Makefile

@@ -1,12 +1,29 @@
 
 CXX = g++
-CXXFLAGS = -std=c++11 -g -ggdb3 -Wall -I../include -I/usr/include/SDL2 -I../ext/stb_libs
+CXXFLAGS = -std=c++11 -g -ggdb3 -Wall -I../include -I/usr/include/SDL2
 LDFLAGS = -lSDL2 -lGLEW -lGL -lassimp
-OBJDIR = ../build
-BINARY = example
-BINDIR = ../bin
-
-all:
-	$(CXX) $(CXXFLAGS) -c -MMD main.cpp -o $(OBJDIR)/$(BINARY).o
-	mkdir -p $(BINDIR)
-	$(CXX) -o $(BINDIR)/$(BINARY) $(LDFLAGS) $(OBJDIR)/$(BINARY).o $(OBJDIR)/libTangerine.a
+OBJDIR = build
+LIB = ../build/libTangerine.a
+BINDIR = bin
+
+
+all: mkdirs $(OBJDIR)/hello_world.o $(OBJDIR)/assimp_loading.o
+.PHONY: all
+
+-include $(OBJDIR)/*.d
+
+mkdirs:
+	mkdir -p $(BINDIR) $(OBJDIR)
+.PHONY: mkdirs
+
+$(OBJDIR)/hello_world.o:
+	$(CXX) $(CXXFLAGS) -c -MMD hello_world/main.cpp -o $@
+	$(CXX) -o $(BINDIR)/hello_world $(LDFLAGS) $@ $(LIB)
+
+$(OBJDIR)/assimp_loading.o:
+	$(CXX) $(CXXFLAGS) -c -MMD assimp_loading/main.cpp -o $@
+	$(CXX) -o $(BINDIR)/assimp_loading $(LDFLAGS) $@ $(LIB)
+
+clean:
+	rm -rf $(OBJDIR)/* bin/*
+.PHONY: clean

examples/assimp_loading/main.cpp

@@ -0,0 +1,59 @@
+
+#include <SDL2/SDL.h>
+
+#include "dumbLog.h"
+#include "renderer.h"
+#include "mesh.h"
+
+
+void
+doFrameCallback(render_state* rs)
+{
+}
+
+void
+doRenderLoop(render_state* rs, void (*callback_fn) (render_state*))
+{
+	const uint TARGET_FPS = 60;
+	const uint FRAME_DELAY = 1000 / TARGET_FPS;
+	uint frameStart, frameTime;
+	bool running = true;
+	SDL_Event e;
+
+	while (running) {
+		frameStart = SDL_GetTicks();
+
+		while (SDL_PollEvent(&e)) {
+			if ((e.type == SDL_KEYDOWN && e.key.keysym.sym == SDLK_ESCAPE)
+				|| e.type == SDL_QUIT) {
+				running = false;
+			}
+		}
+
+		callback_fn(rs);
+		renRenderFrame(rs, nullptr, 0);
+		SDL_GL_SwapWindow(rs->handles.window);
+		frameTime = SDL_GetTicks() - frameStart;
+
+		if (FRAME_DELAY > frameTime)
+			SDL_Delay(FRAME_DELAY - frameTime);
+	}
+}
+
+int
+main()
+{
+	render_state* rs = renInit();
+	meInitAssimp();
+
+	meMeshGroup mg;
+	if (meLoadFromFile(mg, "../data", "../data/spaceship.glb")) {
+
+		doRenderLoop(rs, doFrameCallback);
+	} else {
+		LOG(Error) << "Error loading mesh, exiting\n";
+	}
+
+	meShutdownAssimp();
+	return 0;
+}

examples/hello_world/main.cpp

@@ -18,8 +18,10 @@ main()
 		frameStart = SDL_GetTicks();
 
 		while (SDL_PollEvent(&e)) {
-			if (e.type == SDL_KEYDOWN && e.key.keysym.sym == SDLK_ESCAPE)
+			if ((e.type == SDL_KEYDOWN && e.key.keysym.sym == SDLK_ESCAPE)
+				|| e.type == SDL_QUIT) {
 				running = false;
+			}
 		}
 
 		renRenderFrame(rs, nullptr, 0);

include/mesh.h

@@ -35,6 +35,8 @@ struct meMeshGroup
 
 bool meInitAssimp();
 
+// NOTE: data_dir gets passed to an internal function, filename is a fullpath, wtfs/min++
+// TODO: maybe pass data_dir in to init function and store as a static variable?
 bool meLoadFromFile(meMeshGroup& mesh_group, const char* data_dir, const char* filename);
 
 void meFreeMeshGroup(meMeshGroup& mesh_group);

include/renderer.h

@@ -1,8 +1,6 @@
 
 #pragma once
 
-#include <vector>
-
 #if defined (_WIN32)
 	#include <SDL.h>
 #else
@@ -22,7 +20,6 @@ struct SDL_Handles
 	SDL_Window *window;
 	SDL_GLContext glContext;
 	SDL_DisplayMode currentDisplayMode;
-	std::vector<SDL_Surface*> texSurfaces;
 };
 
 struct rg_point_light;