From c257fe1fdee5846cde8f4ccb6fa2d01190829dac Mon Sep 17 00:00:00 2001
From: "Ronald S. Bultje" <rsbultje@gmail.com>
Date: Sun, 3 Mar 2013 15:47:11 -0800
Subject: [PATCH] Move ff_cropTbl and ff_zigzag_direct from dsputil to
 mathtables.

These are widely used throughout libavcodec, nothing dsputil-specific.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavcodec/dsputil.c    | 18 ------------------
 libavcodec/dsputil.h    |  2 +-
 libavcodec/mathtables.c | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 34 insertions(+), 19 deletions(-)

diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index 2bcc3ee339..12cfb1b216 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -42,7 +42,6 @@
 #include "config.h"
 #include "diracdsp.h"
 
-uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP] = {0, };
 uint32_t ff_squareTbl[512] = {0, };
 
 #define BIT_DEPTH 9
@@ -68,17 +67,6 @@ uint32_t ff_squareTbl[512] = {0, };
 #define pb_7f (~0UL/255 * 0x7f)
 #define pb_80 (~0UL/255 * 0x80)
 
-const uint8_t ff_zigzag_direct[64] = {
-    0,   1,  8, 16,  9,  2,  3, 10,
-    17, 24, 32, 25, 18, 11,  4,  5,
-    12, 19, 26, 33, 40, 48, 41, 34,
-    27, 20, 13,  6,  7, 14, 21, 28,
-    35, 42, 49, 56, 57, 50, 43, 36,
-    29, 22, 15, 23, 30, 37, 44, 51,
-    58, 59, 52, 45, 38, 31, 39, 46,
-    53, 60, 61, 54, 47, 55, 62, 63
-};
-
 /* Specific zigzag scan for 248 idct. NOTE that unlike the
    specification, we interleave the fields */
 const uint8_t ff_zigzag248_direct[64] = {
@@ -2626,12 +2614,6 @@ av_cold void ff_dsputil_static_init(void)
 {
     int i;
 
-    for(i=0;i<256;i++) ff_cropTbl[i + MAX_NEG_CROP] = i;
-    for(i=0;i<MAX_NEG_CROP;i++) {
-        ff_cropTbl[i] = 0;
-        ff_cropTbl[i + MAX_NEG_CROP + 256] = 255;
-    }
-
     for(i=0;i<512;i++) {
         ff_squareTbl[i] = (i - 256) * (i - 256);
     }
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h
index 7d12fe3c7b..454be38958 100644
--- a/libavcodec/dsputil.h
+++ b/libavcodec/dsputil.h
@@ -47,7 +47,7 @@ extern const uint8_t ff_zigzag248_direct[64];
 
 /* temporary */
 extern uint32_t ff_squareTbl[512];
-extern uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP];
+extern const uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP];
 
 #define PUTAVG_PIXELS(depth)\
 void ff_put_pixels8x8_ ## depth ## _c(uint8_t *dst, uint8_t *src, int stride);\
diff --git a/libavcodec/mathtables.c b/libavcodec/mathtables.c
index 037b135a1b..126b05f4c5 100644
--- a/libavcodec/mathtables.c
+++ b/libavcodec/mathtables.c
@@ -87,3 +87,36 @@ const uint8_t ff_reverse[256] = {
 0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
 0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
 };
+
+#define times4(x) x, x, x, x
+
+const uint8_t ff_cropTbl[256 + 2 * 1024] = {
+times4(times4(times4(times4(times4(0x00))))),
+0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
+0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
+0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,
+0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,
+0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,
+0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0x5B,0x5C,0x5D,0x5E,0x5F,
+0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
+0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
+0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,
+0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,
+0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,
+0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF,
+0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,
+0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
+0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
+0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,
+times4(times4(times4(times4(times4(0xFF)))))};
+
+const uint8_t ff_zigzag_direct[64] = {
+  0,   1,  8, 16,  9,  2,  3, 10,
+  17, 24, 32, 25, 18, 11,  4,  5,
+  12, 19, 26, 33, 40, 48, 41, 34,
+  27, 20, 13,  6,  7, 14, 21, 28,
+  35, 42, 49, 56, 57, 50, 43, 36,
+  29, 22, 15, 23, 30, 37, 44, 51,
+  58, 59, 52, 45, 38, 31, 39, 46,
+  53, 60, 61, 54, 47, 55, 62, 63
+};