1 files changed, 312 insertions, 0 deletions
diff --git a/apps/graphics/traveller/src/trv_main.c b/apps/graphics/traveller/src/trv_main.c
new file mode 100755
index 000000000..6e4339f84
--- /dev/null
+++ b/apps/graphics/traveller/src/trv_main.c
@@ -0,0 +1,312 @@
+/****************************************************************************
+ * apps/graphics/traveller/trv_debug.h
+ * This file contains the main logic for the NuttX version of Traveller
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <math.h>
+
+#include "trv_types.h"
+#include "trv_bitmaps.h"
+#include "trv_world.h"
+#include "trv_doors.h"
+#include "trv_pov.h"
+#include "trv_raycntl.h"
+#include "trv_rayrend.h"
+#include "trv_input.h"
+#include "trv_graphics.h"
+#include "trv_color.h"
+#include "trv_main.h"
+
+#if CONFIG_GRAPHICS_TRAVELER_PERFMON
+#  include <sys/types.h>
+#  include <sys/time.h>
+#  include <unistd.h>
+#endif
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+static void trv_exit(int exitCode);
+static void trv_usage(char *execname);
+#if CONFIG_GRAPHICS_TRAVELER_PERFMON
+static double trv_current_time(void);
+#endif
+
+/****************************************************************************
+ * Public Data
+ *************************************************************************/
+
+bool g_trv_terminate;
+
+/****************************************************************************
+ * Private Data
+ *************************************************************************/
+
+static const char g_default_worldfile[] = "transfrm.wld";
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: trv_exit
+ *
+ * Description:
+ ****************************************************************************/
+
+static void trv_exit(int exitCode)
+{
+  /* Release memory held by the ray casting engine */
+
+  trv_world_destroy();
+
+  /* Close off input */
+
+  trv_input_terminate();
+  trv_graphics_terminate();
+
+  exit(exitCode);
+}
+
+/****************************************************************************
+ * Name: trv_usage
+ *
+ * Description:
+ ****************************************************************************/
+
+static void trv_usage(char *execname)
+{
+  fprintf(stderr, "Usage: %s [-b] [-p<path>] [world]\n", execname);
+  fprintf(stderr, "Where:\n");
+  fprintf(stderr, "  -b       Selects 640x400 window (default is 320x200)\n");
+  fprintf(stderr, "  -p<path> Selects the path to the world data file\n");
+  fprintf(stderr, "  world    Selects the world file name\n");
+  exit(EXIT_FAILURE);
+}
+
+/****************************************************************************
+ * Name: trv_current_time
+ *
+ * Description:
+ ****************************************************************************/
+
+#ifdef CONFIG_GRAPHICS_TRAVELER_PERFMON
+static double trv_current_time(void)
+{
+  struct timeval tv;
+
+  gettimeofday(&tv, NULL);
+  return (double) tv.tv_sec + (double) tv.tv_usec / 1000000.0;
+}
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: main
+ *
+ * Description:
+ ****************************************************************************/
+
+int main(int argc, char *argv[])
+{
+  FAR struct trv_graphics_info_s ginfo;
+  struct trv_framebuffer_s frame;
+  FAR const char *world_filename;
+  uint8_t scale_factor = 1;
+#ifdef CONFIG_GRAPHICS_TRAVELER_PERFMON
+  int32_t frame_count = 0;
+  double elapsed_time = 0.0;
+  double start_time;
+#endif
+  int ret;
+  int i;
+
+  /* Check for command line arguments */
+
+  world_filename = g_default_worldfile;
+  for (i = 1; i < argc; i++)
+    {
+      FAR char *ptr = argv[i];
+      if (*ptr == '-')
+        {
+          ptr++;
+          switch (*ptr)
+            {
+            case 'b':
+              scale_factor = 2;
+              break;
+
+            case 'p' :
+              ptr++;
+              printf("World data path = %s\n", ptr);
+              if (chdir(ptr))
+                {
+                  fprintf(stderr, "Bad path name\n");
+                  trv_usage(argv[0]);
+                }
+              break;
+
+            default:
+              fprintf(stderr, "Invalid Switch\n");
+              trv_usage(argv[0]);
+              break;
+            }
+        }
+      else
+        {
+          world_filename = ptr;
+        }
+    }
+
+  printf("World data file = %s\n", world_filename);
+
+  /* Initialize the graphics interface */
+
+  ret = trv_graphics_initialize(320, 200, scale_factor, &ginfo);
+  if (ret < 0)
+    {
+      fprintf(stderr, "ERROR: trv_graphics_initialize failed: %d\n", ret);
+      trv_exit(EXIT_FAILURE);
+    }
+
+  /* Load the word data structures */
+
+  ret = trv_world_create(world_filename);
+  if (ret < 0)
+    {
+      fprintf(stderr, "ERROR: %d loading world file %s: %d\n",
+              world_filename, ret);
+      trv_exit(EXIT_FAILURE);
+    }
+
+  /* We can now release any color mapping tables */
+
+  trv_color_endmapping();
+
+  /* Set the player's POV in the new world */
+
+  trv_pov_reset();
+
+  /* Initialize the world's door */
+
+  trv_door_initialize();
+
+  /* Initialize the ray cast engine */
+
+  frame.width  = ginfo.width;
+  frame.height = ginfo.height;
+  frame.buffer = trv_get_renderbuffer(ginfo.width, ginfo.height);
+
+  if (!trv_raycaster_initialize(frame.width, frame.height,
+                                scale_factor, frame.buffer))
+    {
+      fprintf(stderr, "Error:  Initializing ray cast engine.\n");
+      trv_exit(EXIT_FAILURE);
+    }
+
+  /* Set up to receive input */
+
+  trv_input_initialize();
+
+  g_trv_terminate = false;
+  while (!g_trv_terminate)
+    {
+#ifdef CONFIG_GRAPHICS_TRAVELER_PERFMON
+      start_time = trv_current_time();
+#endif
+      trv_input_read();
+
+      /* Select the POV to use on this viewing cycle */
+
+      trv_pov_new();
+
+      /* Process door animations */
+
+      trv_door_animate();
+
+      /* Paint the back drop */
+
+      trv_rend_backdrop(&g_trv_player);
+
+      /* Render the 3-D view */
+
+      trv_raycaster(&g_trv_player);
+
+      /* Display the world. */
+
+      trv_display_update(&frame);
+#ifdef CONFIG_GRAPHICS_TRAVELER_PERFMON
+      frame_count++;
+      elapsed_time += trv_current_time() - start_time;
+      if (frame_count == 100)
+        {
+          fprintf(stderr, "fps = %3.2f\n", (double) frame_count / elapsed_time);
+          frame_count = 0;
+          elapsed_time = 0.0;
+        }
+#endif
+    }
+
+  trv_exit(EXIT_SUCCESS);
+  return 0;
+}
+
+/****************************************************************************
+ * Name: trv_abort
+ *
+ * Description:
+ ****************************************************************************/
+
+void trv_abort(FAR char *message, ...)
+{
+  va_list args;
+
+  va_start(args, message);
+  vfprintf(stderr, message, args);
+  putc('\n', stderr);
+  va_end(args);
+
+  trv_exit(EXIT_FAILURE);
+}