Traveler: Add another trivial plane management tool

graphics/traveler/tools/.gitignore

@@ -1,3 +1,6 @@
 /pll2txt
+/txt2pll
+/mktrig
+/trigtbl.tmp
 /*.exe
 /*.dSYM

graphics/traveler/tools/Makefile.host

@@ -73,16 +73,19 @@ PLL2TXT_OBJS = $(PLL2TXT_SRCS:.c=$(OBJEXT))
 TXT2PLL_SRCS = txt2pll.c
 TXT2PLL_OBJS = $(TXT2PLL_SRCS:.c=$(OBJEXT))
 
-OBJS = $(PLL2TXT_OBJS) $(TXT2PLL_OBJS)
+MKTRIG_SRCS = mktrig.c
+MKTRIG_OBJS = $(MKTRIG_SRCS:.c=$(OBJEXT))
+
+OBJS = $(PLL2TXT_OBJS) $(TXT2PLL_OBJS) $(MKTRIG_OBJS)
 
 # Targets
 
-all: pll2txt$(HOSTEXEEXT) txt2pll$(HOSTEXEEXT)
+all: pll2txt$(HOSTEXEEXT) txt2pll$(HOSTEXEEXT) mktrig$(HOSTEXEEXT)
 
 default: all
 
 ifdef HOSTEXEEXT
-.PHONY: pll2txt txt2pll clean
+.PHONY: pll2txt txt2pll mktrig clean
 else
 .PHONY: clean
 endif
@@ -108,9 +111,19 @@ ifdef HOSTEXEEXT
 txt2pll: txt2pll$(HOSTEXEEXT)
 endif
 
+# mktrig - Regenerate trigonometry look-up tables
+
+mktrig$(HOSTEXEEXT): $(MKTRIG_OBJS)
+	$(Q) $(HOSTCC) $(HOSTCFLAGS) $< -o $@
+
+ifdef HOSTEXEEXT
+mktrig: mktrig$(HOSTEXEEXT)
+endif
+
 clean:
 	$(call DELFILE, pll2txt$(HOSTEXEEXT))
 	$(call DELFILE, txt2pll$(HOSTEXEEXT))
+	$(call DELFILE, mktrig$(HOSTEXEEXT))
 ifneq ($(CONFIG_WINDOWS_NATIVE),y)
 	$(Q) rm -rf *.dSYM
 endif

graphics/traveler/tools/misc/mktrig.c

@@ -0,0 +1,188 @@
+
+/*******************************************************************************
+ * apps/graphics/traveler/tools/misc/mktrig.c
+ *
+ *   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 <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+/****************************************************************************
+ * Included files
+ ****************************************************************************/
+
+#define PI 3.1415926
+
+/****************************************************************************
+ * Included files
+ ****************************************************************************/
+
+int main(int argc, char **argv, char **envp)
+{
+  FILE *outfile;
+  double angle;
+  double valuef;
+  uint32_t value32;
+  uint16_t value16;
+  int i;
+  int j;
+
+  outfile = fopen("trigtbl.tmp", "w");
+  if (!outfile)
+    {
+      fprintf(stderr, "Unable to open trigtbl.tmp\n");
+      exit(1);
+    }
+
+  fprintf(outfile, "#define TWOPI            1920\n");
+  fprintf(outfile, "#define PI                960\n");
+  fprintf(outfile, "#define HALFPI            480\n");
+  fprintf(outfile, "#define QTRPI             240\n\n");
+
+  fprintf(outfile, "const int32_t g_tan_table[PI + HALFPI + 1] =\n");
+  fprintf(outfile, "{\n");
+
+  for (i = 0; i < 1440;)
+    {
+      fprintf(outfile, "  ");
+      for (j = 0; ((j < 5) && (i < 1440));)
+        {
+          angle = ((double)i) * (2.0 * PI / 1920.0);
+          valuef = (4096.0 * tan(angle));
+          if (valuef >= 0.0)
+            {
+              valuef += 0.5;
+            }
+          else
+            {
+              valuef -= 0.5;
+            }
+
+          value32 = (uint32_t)((long)(valuef));
+          fprintf(outfile, "0x%08lx", (unsigned long)value32);
+
+          i++;
+          j++;
+          if ((j < 5) && (i < 1440))
+            {
+              fprintf(outfile, ", ");
+            }
+        }
+
+      fprintf(outfile, ",\n");
+    }
+
+  fprintf(outfile, "  0x00000000\n");
+  fprintf(outfile, "};\n\n");
+
+  fprintf(outfile, "const int16_t g_sin_table[TWOPI + HALFPI + 1] =\n");
+  fprintf(outfile, "{\n");
+
+  for (i = 0; i < 2400;)
+    {
+      fprintf(outfile, "  ");
+      for (j = 0; ((j < 8) && (i < 2400));)
+        {
+          angle = ((double)i) * (2.0 * PI / 1920.0);
+          valuef = (4096.0 * sin(angle));
+          if (valuef >= 0.0)
+            {
+              valuef += 0.5;
+            }
+          else
+            {
+              valuef -= 0.5;
+            }
+
+          value16 = (uint16_t)((long)(valuef));
+          fprintf(outfile, "0x%04x", (unsigned int)value16);
+  
+          i++;
+          j++;
+          if ((j < 8) && (i < 2400))
+            {
+              fprintf(outfile, ", ");
+            }
+        }
+
+      fprintf(outfile, ",\n");
+    }
+
+  fprintf(outfile, "  0x1000\n");
+  fprintf(outfile, "};\n\n");
+
+  fprintf(outfile, "const int32_t cscTable[TWOPI + HALFPI + 1] =\n");
+  fprintf(outfile, "{\n");
+
+  for (i = 0; i < 2400;)
+    {
+      fprintf(outfile, "  ");
+      for (j = 0; ((j < 5) && (i < 2400));)
+        {
+          angle = ((double)i) * (2.0 * PI / 1920.0);
+          valuef = (4096.0 / sin(angle));
+          if (valuef >= 0.0)
+            {
+              valuef += 0.5;
+            }
+          else
+            {
+              valuef -= 0.5;
+            }
+
+          value32 = (uint32_t)((long)(valuef));
+          fprintf(outfile, "0x%08lx", (unsigned long)value32);
+
+          i++;
+          j++;
+          if ((j < 5) && (i < 2400))
+            {
+              fprintf(outfile, ", ");
+            }
+        }
+
+      fprintf(outfile, ",\n");
+    }
+
+  fprintf(outfile, "  0x00001000\n");
+  fprintf(outfile, "};\n\n");
+
+  fclose(outfile);
+  return 0;
+}

graphics/traveler/tools/misc/pll2txt.c

@@ -1,6 +1,5 @@
 /*******************************************************************************
  * apps/graphics/traveler/tools/misc/pll2txt.c
- * This file contains low-level texture bitmap logic
  *
  *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

graphics/traveler/tools/misc/txt2pll.c

@@ -1,6 +1,5 @@
 /*******************************************************************************
- * apps/graphics/traveler/tools/misc/pll2txt.c
+ * apps/graphics/traveler/tools/misc/txt2pll.c
- * This file contains low-level texture bitmap logic
  *
  *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>