remove unused/unmaintained code

[picodrive.git] / pico / utils.c

diff --git a/pico/utils.c b/pico/utils.c
deleted file mode 100644 (file)
index 467bc78..0000000
--- a/pico/utils.c
+++ /dev/null
@@ -1,108 +0,0 @@
-// This is part of Pico Library\r
-\r
-// (c) Copyright 2004 Dave, All rights reserved.\r
-// (c) Copyright 2006 notaz, All rights reserved.\r
-// Free for non-commercial use.\r
-\r
-// For commercial use, separate licencing terms must be obtained.\r
-\r
-\r
-#include "pico_int.h"\r
-\r
-int PicuAnd=0xf7de;\r
-\r
-// Quick low-quality conversion of 320 to 176:\r
-int PicuQuick(unsigned short *dest,unsigned short *src)\r
-{\r
-  unsigned short *end=NULL;\r
-\r
-  src+=13; end=src+290;\r
-  dest++;\r
-\r
-  do\r
-  {\r
-    *dest++=*src++;\r
-    *dest++=*src; src+=2;\r
-    *dest++=*src; src+=2;\r
-    *dest++=*src++;\r
-    *dest++=*src; src+=2;\r
-    *dest++=*src; src+=2;\r
-  }\r
-  while (src<end);\r
-\r
-  return 0;\r
-}\r
-\r
-// Shrink the pixels in src/srcLen, to the screen line pointed to by dest/destLen\r
-int PicuShrink(unsigned short *dest,int destLen,unsigned short *src,int srcLen)\r
-{\r
-  unsigned short *end=NULL;\r
-  int bias=0,pa=0,sub=0;\r
-\r
-  end=dest+destLen;\r
-  sub=srcLen-destLen;\r
-\r
-  do\r
-  {\r
-    pa=*src++; bias-=sub;\r
-    if (bias<0) { pa+=*src++; pa>>=1; bias+=destLen; }\r
-    *dest++=(unsigned short)pa;\r
-\r
-    pa=*src++; bias-=sub;\r
-    if (bias<0) { pa+=*src++; pa>>=1; bias+=destLen; }\r
-    *dest++=(unsigned short)pa;\r
-  }\r
-  while (dest<end);\r
-  \r
-  return 0;\r
-}\r
-\r
-// same thing, only reversed (dest is in pre-decremental mode)\r
-int PicuShrinkReverse(unsigned short *dest,int destLen,unsigned short *src,int srcLen)\r
-{\r
-  unsigned short *end=NULL;\r
-  int bias=0,pa=0,sub=0;\r
-\r
-  end=dest-destLen;\r
-  sub=srcLen-destLen;\r
-\r
-  do\r
-  {\r
-    pa=*src++; bias-=sub;\r
-    if (bias<0) { pa+=*src++; pa>>=1; bias+=destLen; }\r
-    *(--dest)=(unsigned short)pa;\r
-\r
-    pa=*src++; bias-=sub;\r
-    if (bias<0) { pa+=*src++; pa>>=1; bias+=destLen; }\r
-    *(--dest)=(unsigned short)pa;\r
-  }\r
-  while (dest>end);\r
-  \r
-  return 0;\r
-}\r
-\r
-int PicuMerge(unsigned short *dest,int destLen,unsigned short *src,int srcLen)\r
-{\r
-  unsigned short *end=NULL;\r
-  int bias=0,pa=0,mask=PicuAnd,sub=0;\r
-\r
-  end=dest+destLen;\r
-  sub=srcLen-destLen;\r
-\r
-  do\r
-  {\r
-    pa=*src++; bias-=sub;\r
-    if (bias<0) { pa+=*src++; pa>>=1; bias+=destLen; }\r
-    pa&=mask; pa+=(*dest)&mask; pa>>=1;\r
-    *dest++=(unsigned short)pa;\r
-\r
-    pa=*src++; bias-=sub;\r
-    if (bias<0) { pa+=*src++; pa>>=1; bias+=destLen; }\r
-    pa&=mask; pa+=(*dest)&mask; pa>>=1;\r
-    *dest++=(unsigned short)pa;\r
-  }\r
-  while (dest<end);\r
-  \r
-  return 0;\r
-}\r
-\r