BlinkenLib

@@ -14,7 +14,8 @@

  * @param[in,out] *pMovie pointer to old/new/changed movie

  * @param[in] str_format format of new video to generate,

  *                       may be NULL for appending to video

- * @param[in] str_mode test movie mode: black, white, dots, lines, trans

+ * @param[in] str_mode test movie mode: black, white, dots, lines, trans,

+ *                                      rainbow

  * @param[in] str_duration duration of each frame in ms (as string)

  */

 static void gen_test_movie(stBlinkenMovie **ppMovie, const char *str_format,

@@ -23,7 +24,7 @@ static void gen_test_movie(stBlinkenMovie **ppMovie, const char *str_format,

   unsigned int height, width, channels, colors;

   enum {

     ModeNone, ModeBlack, ModeWhite, ModeGradient,

-    ModeDots, ModeLines, ModeTrans

+    ModeDots, ModeLines, ModeTrans, ModeRainbow,

   } mode = ModeNone;

   int fmt_ok, append, duration;

@@ -59,6 +60,8 @@ static void gen_test_movie(stBlinkenMovie **ppMovie, const char *str_format,

     mode = ModeLines;

   else if (strcmp(str_mode, "trans") == 0)

     mode = ModeTrans;

+  else if (strcmp(str_mode, "rainbow") == 0)

+    mode = ModeRainbow;

   //check

   if (! fmt_ok)

     printf("invalid movie format \"%s\" for \"-t\" or \"-ta\"\n", str_format);

@@ -202,6 +205,44 @@ static void gen_test_movie(stBlinkenMovie **ppMovie, const char *str_format,

               }

         break;

+      case ModeRainbow:

+        for (b = 0; b < width * height; b++) {

+          pFrame = BlinkenFrameNew(height, width, channels,

+                                   colors - 1, duration);

+          for (yy = 0; yy < height; yy++) {

+            for (xx = 0; xx < width; xx++) {

+              for (cc = 0; cc < channels; cc++) {

+                y = b + yy + xx + cc * 8;

+                switch (y % 24) {

+                  case  0: oo = 0; break;

+                  case  1: oo = 1; break;

+                  case  2: oo = 2; break;

+                  case  3: oo = 3; break;

+                  case  4: oo = 4; break;

+                  case  5: oo = 4; break;

+                  case  6: oo = 4; break;

+                  case  7: oo = 4; break;

+                  case  8: oo = 4; break;

+                  case  9: oo = 4; break;

+                  case 10: oo = 4; break;

+                  case 11: oo = 4; break;

+                  case 12: oo = 4; break;

+                  case 13: oo = 3; break;

+                  case 14: oo = 2; break;

+                  case 15: oo = 1; break;

+                  default: oo = 0; break;

+                }

+                oo = oo * colors / 4;

+                if (oo > colors - 1)

+                  oo = colors - 1;

+                BlinkenFrameSetPixel(pFrame, yy, xx, cc, oo);

+              }

+            }

+          }

+          BlinkenMovieAppendFrame(*ppMovie, pFrame);

+        }

+        break;

+

       } // switch( mode )

       printf("test movie generated, using format %ux%u-%u/%u and mode %s\n",

@@ -435,7 +476,7 @@ int main(int argCnt, char **args)

            "     mirror movie diagonally (/)\n"

            "  -o <file>\n"

            "     write movie to file (*.blm, *.bmm, *.bml, *.bbm" MNGEXT GIFEXT ")\n\n"

-           "test_modes: black, white, gradient, dots, lines, trans\n\n"

+           "test_modes: black, white, gradient, dots, lines, trans, rainbow\n\n"

            "old syntax: %s <input-file> [<output-file>]\n\n",

            args[0], args[0]);

     return 0;