11 files changed, 385 insertions, 0 deletions

diff --git a/src/model/exp004base.sqc b/src/model/exp004base.sqc
new file mode 100644
index 0000000..6189b72
--- a/dev/null
+++ b/src/model/exp004base.sqc
@@ -0,0 +1,144 @@
+/* I seem to need this for glGenBuffers as per
+   http://www.gamedev.net/community/forums/topic.asp?topic_id=422358 */
+#define GL_GLEXT_PROTOTYPES
+
+#include "exp004base.h"
+#include "../view/exp004state0.h"
+#include <GL/glut.h>
+#include <stdio.h>
+#include <string.h>
+
+EXEC SQL INCLUDE sqlca;
+
+/*
+ * A simple alias to make the code more readable.
+ */
+#define S exp004state0
+
+void
+exp004base (void)
+{
+  EXEC SQL CONNECT TO exp004;
+
+  /* 
+   * This implementation can be improved by mapping the video memory
+   * directly rather than loading into system memory and then copying
+   * into video memory.
+  */
+
+  /*
+   * db2dclgn -d exp004 -t coordinates
+   */
+  EXEC SQL BEGIN DECLARE SECTION;
+  EXEC SQL INCLUDE 'model/coordinates.h';  
+  EXEC SQL END DECLARE SECTION;
+
+  EXEC SQL DECLARE c2 CURSOR FOR
+    SELECT * FROM coordinates;
+
+  EXEC SQL OPEN c2;
+
+  /*
+  FILE* coords = 
+    fopen ("/home/don/exp004/test/run20090514/run20090514.coords", "r");
+  int i = 0;
+  */
+
+  /* 
+   * Initialize the bounding box of the points.
+   */
+  S.bb.min_x = 0.0;
+  S.bb.max_x = 0.0;
+  S.bb.min_y = 0.0;
+  S.bb.max_y = 0.0;
+
+  //  for (i = 0; i < ROWS; i++)
+
+  EXEC SQL FETCH c2 INTO :coordinates;
+  while (sqlca.sqlcode != 100)
+    {
+      /*
+      fscanf (coords, "%s %f %f\n",
+	      S.gi_data[i],
+	      &S.base_vertices_data[i][0],
+	      &S.base_vertices_data[i][1]);
+      */
+
+      int i = coordinates.coord_id;
+
+      strncpy(S.gi_data[i], 
+	      coordinates.gi.data, 
+	      sizeof (S.gi_data[i]));
+
+      S.base_vertices_data[i][0] = coordinates.x;
+      S.base_vertices_data[i][1] = coordinates.y;
+
+      if (S.base_vertices_data[i][0] < S.bb.min_x)
+	S.bb.min_x = S.base_vertices_data[i][0];
+      if (S.base_vertices_data[i][0] > S.bb.max_x)
+	S.bb.max_x = S.base_vertices_data[i][0];
+      if (S.base_vertices_data[i][1] < S.bb.min_y)
+	S.bb.min_y = S.base_vertices_data[i][1];
+      if (S.base_vertices_data[i][1] > S.bb.max_y)
+	S.bb.max_y = S.base_vertices_data[i][1];
+
+      /*
+       * Deselected by default.
+       */
+      S.selection[i] = false;
+
+      S.base_colors_data[i][0] = DEFAULT_COLOR_R;
+      S.base_colors_data[i][1] = DEFAULT_COLOR_G;
+      S.base_colors_data[i][2] = DEFAULT_COLOR_B;
+
+      EXEC SQL FETCH c2 INTO :coordinates;
+    }
+
+  EXEC SQL CLOSE c2;
+
+  /*
+  fclose (coords);
+  */
+
+  /*
+   * Find the largest axis and use it to setup the projection.  This
+   * is done to preserve the aspect ratio.  The aspect ratio should be
+   * preserved since relative distance is a meaningful indicator in
+   * the map.
+   */
+
+  // Min of min x or min y.
+  if (S.bb.min_x <= S.bb.min_y)
+    S.ortho_min = S.bb.min_x;
+  else
+    S.ortho_min = S.bb.min_y;
+  S.ortho_min--;
+
+  // Max of max x or max y.
+  if (S.bb.max_x >= S.bb.max_y)
+    S.ortho_max = S.bb.max_x;
+  else
+    S.ortho_max = S.bb.max_y;
+  S.ortho_max++;
+
+  // Invert the y coordinate to match up with the LGL Java viewer.
+  for (int i = 0; i < ROWS; i++)
+    S.base_vertices_data[i][1] = 
+      S.ortho_max - S.base_vertices_data[i][1];
+
+  glGenBuffers (2, S.buffers);
+
+  glBindBuffer (GL_ARRAY_BUFFER, S.buffers[BASE_VERTICES]);
+  glVertexPointer (2, GL_FLOAT, 0, 0);
+  glBufferData (GL_ARRAY_BUFFER, 
+		sizeof (S.base_vertices_data), S.base_vertices_data,
+		GL_STATIC_DRAW);
+
+  glBindBuffer (GL_ARRAY_BUFFER, S.buffers[BASE_COLORS]);
+  glColorPointer (3, GL_FLOAT, 0, 0);
+  glBufferData (GL_ARRAY_BUFFER,
+		sizeof (S.base_colors_data), S.base_colors_data,
+		GL_STATIC_DRAW);
+
+  return;
+}