Scene now writing blank BMP file, accepting settings parameters

git-svn-id: svn://anubis/fart/trunk@24 7f9b0f55-74a9-4bce-be96-3c2cd072584d

main/BMP.h

@@ -5,6 +5,10 @@
 
 #include <stdio.h>
 
+#define BMP_RED 2
+#define BMP_GREEN 1
+#define BMP_BLUE 0
+
 class BMP
 {
 public:

main/Scene.cc

@@ -2,6 +2,7 @@
 #include "Scene.h"
 #include <string>
 #include <map>
+#include "BMP.h"
 using namespace std;
 
 Scene::Scene(map<string, const char *> options,
@@ -12,14 +13,39 @@ Scene::Scene(map<string, const char *> options,
     m_multisample_level = 1;
     m_output_file_name = "fart.bmp";
     m_verbose = false;
+    m_data = NULL;
 
     load(filename);
 }
 
+Scene::~Scene()
+{
+    if (m_data != NULL)
+        delete m_data;
+}
+
 void Scene::load(const char * filename)
 {
 }
 
 void Scene::render()
 {
+    m_data = new unsigned char[m_width * m_height * 3];
+    for (int i = 0; i < m_height; i++)
+    {
+        for (int j = 0; j < m_width; j++)
+        {
+            renderPixel(i, j, &m_data[3 * (m_width * i + j)]);
+        }
+    }
+
+    BMP outputImage(m_output_file_name.c_str(), m_width, m_height, m_data);
+}
+
+void Scene::renderPixel(int x, int y, unsigned char * pixel)
+{
+    // TODO: um... real work
+    pixel[BMP_RED] = 0;
+    pixel[BMP_GREEN] = 0;
+    pixel[BMP_BLUE] = 0;
 }

main/Scene.h

@@ -10,16 +10,19 @@ class Scene
     public:
         Scene(std::map<std::string, const char *> options,
               const char * filename);
+        ~Scene();
         void render();
 
     private:
         void load(const char * filename);
+        void renderPixel(int x, int y, unsigned char * pixel);
 
         int m_width;
         int m_height;
         int m_multisample_level;
         std::string m_output_file_name;
         bool m_verbose;
+        unsigned char * m_data;
 };
 
 #endif

main/fart.cc

@@ -6,6 +6,7 @@
 #include <getopt.h>
 #include <string>
 #include <map>
+#include "Scene.h"
 using namespace std;
 
 void usage(const char * progname)
@@ -65,5 +66,7 @@ int main(int argc, char * argv[])
         usage(argv[0]);
     }
 
-    cout << "hi" << endl;
+    Scene scene(scene_options, argv[optind]);
+
+    scene.render();
 }