[Feature][ZXW-88]merge P50 version
Only Configure: No
Affected branch: master
Affected module: unknown
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update: No
Change-Id: I34667719d9e0e7e29e8e4368848601cde0a48408
diff --git a/ap/lib/libpng/libpng-1.6.37/contrib/mips-msa/linux.c b/ap/lib/libpng/libpng-1.6.37/contrib/mips-msa/linux.c
new file mode 100755
index 0000000..140215c
--- /dev/null
+++ b/ap/lib/libpng/libpng-1.6.37/contrib/mips-msa/linux.c
@@ -0,0 +1,64 @@
+/* contrib/mips-msa/linux.c
+ *
+ * Copyright (c) 2016 Glenn Randers-Pehrson
+ * Written by Mandar Sahastrabuddhe, 2016.
+ * Last changed in libpng 1.6.25beta03 [August 29, 2016]
+ *
+ * This code is released under the libpng license.
+ * For conditions of distribution and use, see the disclaimer
+ * and license in png.h
+ *
+ * SEE contrib/mips-msa/README before reporting bugs
+ *
+ * STATUS: SUPPORTED
+ * BUG REPORTS: png-mng-implement@sourceforge.net
+ *
+ * png_have_msa implemented for Linux by reading the widely available
+ * pseudo-file /proc/cpuinfo.
+ *
+ * This code is strict ANSI-C and is probably moderately portable; it does
+ * however use <stdio.h> and it assumes that /proc/cpuinfo is never localized.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+static int
+png_have_msa(png_structp png_ptr)
+{
+ FILE *f = fopen("/proc/cpuinfo", "rb");
+
+ char *string = "msa";
+ char word[10];
+
+ if (f != NULL)
+ {
+ while(!feof(f))
+ {
+ int ch = fgetc(f);
+ static int i = 0;
+
+ while(!(ch <= 32))
+ {
+ word[i++] = ch;
+ ch = fgetc(f);
+ }
+
+ int val = strcmp(string, word);
+
+ if (val == 0)
+ return 1;
+
+ i = 0;
+ memset(word, 0, 10);
+ }
+
+ fclose(f);
+ }
+#ifdef PNG_WARNINGS_SUPPORTED
+ else
+ png_warning(png_ptr, "/proc/cpuinfo open failed");
+#endif
+ return 0;
+}