Whoops, forgot to save the files, same commit as before

include/CL_Wrapper.h

@@ -43,6 +43,8 @@ public:
 
     int create_command_queue();
 
+	int check_cl_khr_gl_sharing();
+
     int compile_kernel(std::string kernel_source, bool is_path, std::string kernel_name);
 
 	int create_buffer(std::string buffer_name, cl_uint size, void* data);
@@ -60,11 +62,14 @@ public:
     cl_kernel getKernel(std::string kernel_name);
 	cl_command_queue getCommandQueue();
 
+	bool was_init_valid();
+
 private:
 
     int error = 0;
 	bool initialized = false;
 	bool cl_khr_gl_sharing_fallback = false;
+	bool cl_supported = false;
 
     cl_platform_id platform_id;
 	cl_device_id device_id;

include/RayCaster.h

@@ -2,23 +2,32 @@
 #include <SFML/System/Vector3.hpp>
 #include <SFML/System/Vector2.hpp>
 #include <Map.h>
+#include "Old_map.h"
+
+
+// What about a parent, child relationship between the raycaster and it's two
+// different modes? Raycaster -> ClCaster, SoftwareCaster
+class Camera;
 
 class RayCaster {
 public:
-	RayCaster(Map *map,
-			 sf::Vector3<int> map_dimensions,
-			 sf::Vector2<int> viewport_resolution);
+
+	RayCaster();
 	~RayCaster();
 
-    void setFOV(float fov);
-    void setResolution(sf::Vector2<int> resolution);
+	virtual void assign_map(Old_Map *map) = 0;
+	virtual void assign_camera(Camera *camera) = 0;
+	virtual void assign_viewport(int width, int height, float v_fov, float h_fov) = 0;
+	virtual void assign_light(Light light) = 0;
+
+	// draw will abstract the gl sharing and software rendering
+	// methods of retrieving the screen buffer
+	virtual void draw(sf::RenderWindow* window) = 0;
 
-	sf::Color* CastRays(sf::Vector3<float> camera_direction, sf::Vector3<float> camera_position);
-	void moveCamera(sf::Vector2f v);
 private:
 
 	sf::Vector3<int> map_dimensions;
-	Map *map;
+	Old_Map *map;
 
 	// The XY resolution of the viewport
 	sf::Vector2<int> resolution;

include/Renderer.cpp

@@ -1 +1,20 @@
 #include "Renderer.h"
+
+Renderer::Renderer() {
+
+	cl = new CL_Wrapper();
+	if (!cl->was_init_valid()) {
+		delete cl;
+		rc = new RayCaster();
+	}
+}
+
+void Renderer::register_camera(Camera *camera)
+{
+
+}
+
+void Renderer::draw()
+{
+
+}

include/Renderer.h

@@ -4,6 +4,8 @@
 #include "SFML/Graphics.hpp"
 #include "CL_Wrapper.h"
 #include "Camera.h"
+#include "Old_map.h"
+#include "RayCaster.h"
 
 // Renderer needs to handle the distinction between a few difference circumstances.
 // A.) The machine supports OpenCL and cl_khr_gl_sharing
@@ -18,6 +20,9 @@
 // intent of leaving it specialized to only the raycaster. Any further OpenCL
 // work can use its own class
 
+// Perhaps in the future there will be a container "scene" which will
+// hold the current map, camera, and light objects. The renderer will
+// then be passed that scene which it will then use to render with
 
 class Renderer {
 
@@ -26,9 +31,11 @@ public:
 
     // The renderer needs all of the things that are required
     // by CL in order to render the screen
-    void register_camera(Camera camera);
-
-
+    void register_camera(Camera* camera);
+	void register_map(Old_Map* map);
+	void register_lights();
+	void create_viewport(float v_fov, float h_fov, int height, int width);
+	void register_light(light l);
 
     void draw();
     sf::RenderWindow* get_window();
@@ -36,10 +43,19 @@ public:
 private:
 
     CL_Wrapper *cl;
+	RayCaster *rc;
+
     bool sharing_supported = false;
+	bool cl_supported = false;
+    
 	sf::Uint8 *drawing_surface;
     sf::RenderWindow* window;
 
+	std::vector<light> lights;
+	Old_Map* map;
+	Camera* camera;
+	sf::Uint8 *view_matrix;
+
 };
 
 

include/util.hpp

@@ -4,10 +4,17 @@
 #include <math.h>
 #include <fstream>
 #include <sstream>
+#include "Vector4.hpp"
 
 const double PI = 3.141592653589793238463;
 const float  PI_F = 3.14159265358979f;
 
+struct Light {
+	sf::Vector4f rgbi;
+	sf::Vector3f position;
+	sf::Vector3f direction_cartesian;
+};
+
 struct fps_counter {
 public:
 	fps_counter(){

src/CL_Wrapper.cpp

@@ -2,8 +2,21 @@
 
 CL_Wrapper::CL_Wrapper() {
 
-    acquire_platform_and_device();
+	// Check to see if acquiring the platform failed out
+	// This also catches when there are general errors,
+	// falling back to the known good software renderer
+	if (acquire_platform_and_device() == -1) {
+		std::cout << "Falling back to the software renderer" << std::endl;
+		return;
+	}
 	
+	cl_supported = true;
+
+	// update cl_khr_gl_sharing_fallback's value
+	check_cl_khr_gl_sharing();
+
+	// Whether or not we can share GL contexts with our CL kernels
+	// Enables on-GPU editing and rendering of the screen buffer
 	if (cl_khr_gl_sharing_fallback){
 		create_cl_context();
 	} else {
@@ -43,6 +56,13 @@ int CL_Wrapper::acquire_platform_and_device(){
         cl_uint deviceIdCount = 0;
         error = clGetDeviceIDs(plt_buf[i], CL_DEVICE_TYPE_ALL, 0, nullptr, &deviceIdCount);
 
+		// Check to see if we even have opencl on this machine
+		if (deviceIdCount == 0) {
+			cl_supported = false;
+			std::cout << "OpenCL does not appear to be supported on this machine" << std::endl;
+			return -1;
+		}
+
         // Get the device ids
         std::vector<cl_device_id> deviceIds(deviceIdCount);
         error = clGetDeviceIDs(plt_buf[i], CL_DEVICE_TYPE_ALL, deviceIdCount, deviceIds.data(), NULL);
@@ -100,18 +120,6 @@ int CL_Wrapper::acquire_platform_and_device(){
     platform_id = current_best_device.platform;
     device_id = current_best_device.id;
 
-    // Test for sharing
-    size_t ext_str_size = 1024;
-    char *ext_str = new char[ext_str_size];
-    clGetDeviceInfo(device_id, CL_DEVICE_EXTENSIONS, ext_str_size, ext_str, &ext_str_size);
-
-    if (std::string(ext_str).find("cl_khr_gl_sharing") == std::string::npos){
-        std::cout << "No support for the cl_khr_gl_sharing extension";
-        cl_khr_gl_sharing_fallback = true;
-    }
-
-    delete ext_str;
-
     return 1;
 };
 
@@ -134,7 +142,7 @@ int CL_Wrapper::create_cl_context() {
     if (assert(error, "clCreateContext"))
         return -1;
 
-    return 0;
+    return 1;
 }
 
 
@@ -188,7 +196,7 @@ int CL_Wrapper::create_shared_context() {
     if (assert(error, "clCreateContext"))
         return -1;
 
-    return 0;
+    return 1;
 }
 
 int CL_Wrapper::create_command_queue(){
@@ -200,7 +208,7 @@ int CL_Wrapper::create_command_queue(){
         if (assert(error, "clCreateCommandQueue"))
             return -1;
 
-        return 0;
+        return 1;
     }
     else {
         std::cout << "Failed creating the command queue, context or device_id not initialized";
@@ -208,6 +216,21 @@ int CL_Wrapper::create_command_queue(){
     }
 }
 
+int CL_Wrapper::check_cl_khr_gl_sharing() {
+	
+	// Test for sharing
+	size_t ext_str_size = 1024;
+	char *ext_str = new char[ext_str_size];
+	clGetDeviceInfo(device_id, CL_DEVICE_EXTENSIONS, ext_str_size, ext_str, &ext_str_size);
+
+	if (std::string(ext_str).find("cl_khr_gl_sharing") == std::string::npos) {
+		std::cout << "No support for the cl_khr_gl_sharing extension";
+		cl_khr_gl_sharing_fallback = true;
+	}
+
+	delete ext_str;
+}
+
 int CL_Wrapper::compile_kernel(std::string kernel_source, bool is_path, std::string kernel_name) {
 
     const char* source;
@@ -354,6 +377,10 @@ cl_context CL_Wrapper::getContext(){ return context; };
 cl_kernel CL_Wrapper::getKernel(std::string kernel_name ){ return kernel_map.at(kernel_name); };
 cl_command_queue CL_Wrapper::getCommandQueue(){ return command_queue; };
 
+bool CL_Wrapper::was_init_valid() {
+	return cl_supported;
+}
+
 bool CL_Wrapper::assert(int error_code, std::string function_name){
 
     // Just gonna do a little jump table here, just error codes so who cares

src/RayCaster.cpp

@@ -2,12 +2,12 @@
 #include <util.hpp>
 #include <Ray.h>
 
+RayCaster::RayCaster() {
+}
 
-RayCaster::RayCaster(
-	Map *map,
-	sf::Vector3<int> map_dimensions,
-    sf::Vector2<int> viewport_resolution ) {
-
+void RayCaster::assign_map(Old_Map* map) {
+	this->map = map;
+}
 	// Override values
 	//this.map_dimensions = new Vector3<int> (50, 50, 50);
 	//this.resolution = new Vector2<int> (200, 200);