BlinkenLib

@@ -22,7 +22,8 @@ static void gen_test_movie(stBlinkenMovie **ppMovie, const char *str_format,

 {

   unsigned int height, width, channels, colors;

   enum {

-    ModeNone, ModeBlack, ModeWhite, ModeDots, ModeLines, ModeTrans

+    ModeNone, ModeBlack, ModeWhite, ModeGradient,

+    ModeDots, ModeLines, ModeTrans

   } mode = ModeNone;

   int fmt_ok, append, duration;

@@ -48,13 +49,15 @@ static void gen_test_movie(stBlinkenMovie **ppMovie, const char *str_format,

   //mode

   if (strcmp(str_mode, "black") == 0)

     mode = ModeBlack;

-  if (strcmp(str_mode, "white") == 0)

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

     mode = ModeWhite;

-  if (strcmp(str_mode, "dots") == 0)

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

+    mode = ModeGradient;

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

     mode = ModeDots;

-  if (strcmp(str_mode, "lines") == 0)

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

     mode = ModeLines;

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

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

     mode = ModeTrans;

   //check

   if (! fmt_ok)

@@ -77,7 +80,8 @@ static void gen_test_movie(stBlinkenMovie **ppMovie, const char *str_format,

     if (*ppMovie != NULL) {

-      unsigned int y, x, c, c2, c3, o, b, yy, xx, cc, oo;

+      unsigned int y, x, c, c2, c3, o, b, yy, xx, cc, ccc, oo;

+      float fx, fy, fc;

       stBlinkenFrame *pFrame;

       height = BlinkenMovieGetHeight(*ppMovie);

       width = BlinkenMovieGetWidth(*ppMovie);

@@ -110,6 +114,29 @@ static void gen_test_movie(stBlinkenMovie **ppMovie, const char *str_format,

         BlinkenMovieAppendFrame(*ppMovie, pFrame);

         break;

+      case ModeGradient:

+        pFrame =

+            BlinkenFrameNew(height, width, channels, colors - 1,

+                            duration);

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

+          fy = (float)yy / (float)(height - 1);

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

+            fx = (float)xx / (float)(width - 1);

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

+              switch (ccc) {

+                case 0:  fc = fx;                      ccc = 1; break;

+                case 1:  fc = fy;                      ccc = 2; break;

+                case 2:  fc = 1.0f - 0.5f * (fx + fy); ccc = 0; break;

+                default: fc = 0.0f;                    ccc = 0; break;

+              }

+              BlinkenFrameSetPixel(pFrame, yy, xx, cc,

+                                   (int)(fc * (float)(colors - 1) + .5f));

+            }

+          }

+        }

+        BlinkenMovieAppendFrame(*ppMovie, pFrame);

+        break;

+

       case ModeDots:

         for (c = 0; c < channels; c++)

           for (y = 0; y < height; y++)

@@ -319,6 +346,10 @@ static stBlinkenMovie * scroll(stBlinkenMovie *pMovie,

   // free scrolled frame

   BlinkenFrameFree(pScroll);

+  printf("scrolled %ux%u-%u/%u frame to %ux%u-%u/%u movie (direction %s)\n",

+         width, height, channels, maxval + 1,

+         new_width, new_height, channels, maxval + 1, str_direction);

+

   return pMovie;

 }

@@ -399,7 +430,7 @@ int main(int argCnt, char **args)

            "     mirror movie diagonally (/)\n"

            "  -o <file>\n"

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

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

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

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

            args[0], args[0]);

     return 0;