View module revisions

Makefile

@@ -22,6 +22,23 @@ clean-osx:
 
 clean: clean-android clean-ios clean-osx
 
+CORE_SRC_FILES= \
+	core/tangram.cpp \
+	core/util/*.cpp \
+	core/viewModule/*.cpp
+
+OSX_FRAMEWORKS= \
+	-framework Cocoa \
+	-framework OpenGL \
+	-framework IOKit \
+	-framework CoreVideo
+OSX_INCLUDES= \
+	-Icore \
+	-Icore/include
+OSX_SRC_FILES= \
+	osx/src/main.cpp \
+	osx/src/platform_osx.cpp
+
 android/libs/armeabi/libtangram.so: android/jni/jniExports.cpp android/jni/platform_android.cpp core/tangram.cpp core/tangram.h android/jni/Android.mk android/jni/Application.mk
 	ndk-build -C android/jni
 
@@ -33,10 +50,7 @@ android: android/bin/TangramAndroid-Debug.apk
 ios:
 	xcodebuild -workspace ios/TangramiOS.xcworkspace -scheme TangramiOS -destination 'platform=iOS Simulator,name=iPhone Retina (3.5-inch)'
 
-osx/lib/libtangram.so: core/tangram.cpp core/tangram.h
-	clang++ -o osx/lib/libtangram.so core/tangram.cpp core/util/shaderProgram.cpp core/util/error.cpp osx/src/platform_osx.cpp -Icore -DPLATFORM_OSX -lglfw3 -framework OpenGL -std=c++11 -shared
-
-osx/bin/TangramOSX: osx/lib/libtangram.so
-	clang++ -o osx/bin/TangramOSX osx/src/main.cpp osx/lib/libtangram.so -Icore -DPLATFORM_OSX -lglfw3 -framework Cocoa -framework IOKit -framework OpenGL -framework CoreVideo -std=c++11 -g
+osx/bin/TangramOSX: $(OSX_SRC_FILES)
+	clang++ -o osx/bin/TangramOSX $(CORE_SRC_FILES) $(OSX_SRC_FILES) $(OSX_INCLUDES) $(OSX_FRAMEWORKS) -DPLATFORM_OSX -lglfw3 -std=c++11 -g
 
 osx: osx/bin/TangramOSX

core/tangram.cpp

@@ -8,6 +8,7 @@ const GLfloat vertices[] = {
 
 ShaderProgram simpleShader;
 GLuint vbo;
+ViewModule view;
 float t;
 
 const std::string vertShaderSrc =
@@ -43,12 +44,15 @@ void initializeOpenGL()
 	t = 0;
 
 	logMsg("%s\n", "initialize");
+
 }
 
 void resizeViewport(int newWidth, int newHeight)
 {
 	glViewport(0, 0, newWidth, newHeight);
 
+	view.setAspect(newWidth, newHeight);
+
 	logMsg("%s\n", "resizeViewport");
 }
 

core/tangram.h

@@ -6,6 +6,7 @@
 
 #include "platform.h"
 #include "util/shaderProgram.h"
+#include "viewModule/viewModule.h"
 
 void initializeOpenGL();
 void resizeViewport(int newWidth, int newHeight);

core/viewModule/viewModule.cpp

@@ -28,12 +28,14 @@ void ViewModule::setAspect(float _width, float _height) {
 
 	m_aspect = _width / _height;
 	setZoom(m_zoom);
+	m_dirty = true;
 
 }
 
 void ViewModule::setPosition(float _x, float _y) {
 
 	translate(_x - m_pos.x, _y - m_pos.y);
+	m_dirty = true;
 
 }
 
@@ -42,23 +44,25 @@ void ViewModule::translate(float _dx, float _dy) {
 	glm::translate(m_view, glm::vec3(_dx, _dy, 0.0));
 	m_pos.x += _dx;
 	m_pos.y += _dy;
+	m_dirty = true;
 
 }
 
 void ViewModule::setZoom(int _z) {
 
 	m_zoom = _z;
-	float tileSize = 2 * PI * EARTH_RADIUS_M / pow(2, m_zoom);
+	float tileSize = 2 * PI * EARTH_RADIUS_M * pow(2, -m_zoom);
 	m_height = 3 * tileSize; // Set viewport size to ~3 tiles vertically
 	m_width = m_height * m_aspect; // Size viewport width to match aspect ratio
-	m_proj = glm::ortho(-m_width/2.0, m_width/2.0, -m_height/2.0, m_height/2.0);
+	m_proj = glm::ortho(-m_width * 0.5, m_width * 0.5, -m_height * 0.5, m_height * 0.5);
+	m_dirty = true;
 
 }
 
 glm::mat2 ViewModule::getBoundsRect() {
 
-	float hw = m_width/2.0;
-	float hh = m_height/2.0;
+	float hw = m_width * 0.5;
+	float hh = m_height * 0.5;
 	return glm::mat2(m_pos.x - hw, m_pos.y - hh, m_pos.x + hw, m_pos.y + hh);
 
 }
@@ -71,15 +75,16 @@ const std::vector<glm::ivec3>& ViewModule::getVisibleTiles() {
 
 	m_visibleTiles.clear();
 
-	float tileSize = 2 * PI * EARTH_RADIUS_M / pow(2, m_zoom);
+	float tileSize = 2 * PI * EARTH_RADIUS_M * pow(2, -m_zoom);
+	float invTileSize = 1.0 / tileSize;
 
-	float vpLeftEdge = m_pos.x - m_width/2;
+	float vpLeftEdge = m_pos.x - m_width * 0.5;
 	float vpRightEdge = vpLeftEdge + m_width;
-	float vpBottomEdge = m_pos.y - m_height/2;
+	float vpBottomEdge = m_pos.y - m_height * 0.5;
 	float vpTopEdge = vpBottomEdge + m_height;
 
-	int tileX = (int) vpLeftEdge / tileSize;
-	int tileY = (int) vpBottomEdge / tileSize;
+	int tileX = (int) vpLeftEdge * invTileSize;
+	int tileY = (int) vpBottomEdge * invTileSize;
 
 	float x = tileX * tileSize;
 	float y = tileY * tileSize;
@@ -94,7 +99,7 @@ const std::vector<glm::ivec3>& ViewModule::getVisibleTiles() {
 
 		}
 
-		tileY = (int) vpBottomEdge / tileSize;
+		tileY = (int) vpBottomEdge * invTileSize;
 		y = tileY * tileSize;
 
 		tileX++;

osx/src/main.cpp

@@ -2,6 +2,11 @@
 
 #include "../../core/tangram.h"
 
+void window_size_callback(GLFWwindow* window, int width, int height)
+{
+    resizeViewport(width, height);
+}
+
 int main(void)
 {
     GLFWwindow* window;
@@ -26,6 +31,8 @@ int main(void)
     initializeOpenGL();
     resizeViewport(width, height);
 
+    glfwSetWindowSizeCallback(window, window_size_callback);
+
     /* Loop until the user closes the window */
     while (!glfwWindowShouldClose(window))
     {