cabac: drop unused STRICT_LIMITS code branch

[ffmpeg] / libavcodec / dct-test.c

diff --git a/libavcodec/dct-test.c b/libavcodec/dct-test.c
index 136f5c4742bf3d0360ca251f7a2b35b8e58fa4e8..daa95bd0df409e47ffe618ed39a75f44bf51c83a 100644 (file)
--- a/libavcodec/dct-test.c
+++ b/libavcodec/dct-test.c
@@ -88,7 +88,7 @@ static const struct algo fdct_tab[] = {
     { "REF-DBL",        ff_ref_fdct,           NO_PERM    },
     { "FAAN",           ff_faandct,            FAAN_SCALE },
     { "IJG-AAN-INT",    fdct_ifast,            SCALE_PERM },
-    { "IJG-LLM-INT",    ff_jpeg_fdct_islow,    NO_PERM    },
+    { "IJG-LLM-INT",    ff_jpeg_fdct_islow_8,  NO_PERM    },
 
 #if HAVE_MMX
     { "MMX",            ff_fdct_mmx,           NO_PERM,   AV_CPU_FLAG_MMX     },
@@ -151,8 +151,6 @@ static const struct algo idct_tab[] = {
 
 #define AANSCALE_BITS 12
 
-uint8_t cropTbl[256 + 2 * MAX_NEG_CROP];
-
 static int64_t gettime(void)
 {
     struct timeval tv;
@@ -199,6 +197,56 @@ static inline void mmx_emms(void)
 #endif
 }
 
+static void init_block(DCTELEM block[64], int test, int is_idct, AVLFG *prng)
+{
+    int i, j;
+
+    memset(block, 0, 64 * sizeof(*block));
+
+    switch (test) {
+    case 0:
+        for (i = 0; i < 64; i++)
+            block[i] = (av_lfg_get(prng) % 512) - 256;
+        if (is_idct) {
+            ff_ref_fdct(block);
+            for (i = 0; i < 64; i++)
+                block[i] >>= 3;
+        }
+        break;
+    case 1:
+        j = av_lfg_get(prng) % 10 + 1;
+        for (i = 0; i < j; i++)
+            block[av_lfg_get(prng) % 64] = av_lfg_get(prng) % 512 - 256;
+        break;
+    case 2:
+        block[ 0] = av_lfg_get(prng) % 4096 - 2048;
+        block[63] = (block[0] & 1) ^ 1;
+        break;
+    }
+}
+
+static void permute(DCTELEM dst[64], const DCTELEM src[64], int perm)
+{
+    int i;
+
+    if (perm == MMX_PERM) {
+        for (i = 0; i < 64; i++)
+            dst[idct_mmx_perm[i]] = src[i];
+    } else if (perm == MMX_SIMPLE_PERM) {
+        for (i = 0; i < 64; i++)
+            dst[idct_simple_mmx_perm[i]] = src[i];
+    } else if (perm == SSE2_PERM) {
+        for (i = 0; i < 64; i++)
+            dst[(i & 0x38) | idct_sse2_row_perm[i & 7]] = src[i];
+    } else if (perm == PARTTRANS_PERM) {
+        for (i = 0; i < 64; i++)
+            dst[(i & 0x24) | ((i & 3) << 3) | ((i >> 3) & 3)] = src[i];
+    } else {
+        for (i = 0; i < 64; i++)
+            dst[i] = src[i];
+    }
+}
+
 static int dct_error(const struct algo *dct, int test, int is_idct, int speed)
 {
     void (*ref)(DCTELEM *block) = is_idct ? ff_ref_idct : ff_ref_fdct;
@@ -219,47 +267,8 @@ static int dct_error(const struct algo *dct, int test, int is_idct, int speed)
     for (i = 0; i < 64; i++)
         sysErr[i] = 0;
     for (it = 0; it < NB_ITS; it++) {
-        for (i = 0; i < 64; i++)
-            block1[i] = 0;
-        switch (test) {
-        case 0:
-            for (i = 0; i < 64; i++)
-                block1[i] = (av_lfg_get(&prng) % 512) - 256;
-            if (is_idct) {
-                ff_ref_fdct(block1);
-                for (i = 0; i < 64; i++)
-                    block1[i] >>= 3;
-            }
-            break;
-        case 1: {
-                int num = av_lfg_get(&prng) % 10 + 1;
-                for (i = 0; i < num; i++)
-                    block1[av_lfg_get(&prng) % 64] =
-                        av_lfg_get(&prng) % 512 - 256;
-            }
-            break;
-        case 2:
-            block1[0] = av_lfg_get(&prng) % 4096 - 2048;
-            block1[63] = (block1[0] & 1) ^ 1;
-            break;
-        }
-
-        if (dct->format == MMX_PERM) {
-            for (i = 0; i < 64; i++)
-                block[idct_mmx_perm[i]] = block1[i];
-        } else if (dct->format == MMX_SIMPLE_PERM) {
-            for (i = 0; i < 64; i++)
-                block[idct_simple_mmx_perm[i]] = block1[i];
-        } else if (dct->format == SSE2_PERM) {
-            for (i = 0; i < 64; i++)
-                block[(i & 0x38) | idct_sse2_row_perm[i & 7]] = block1[i];
-        } else if (dct->format == PARTTRANS_PERM) {
-            for (i = 0; i < 64; i++)
-                block[(i & 0x24) | ((i & 3) << 3) | ((i >> 3) & 3)] = block1[i];
-        } else {
-            for (i = 0; i < 64; i++)
-                block[i] = block1[i];
-        }
+        init_block(block1, test, is_idct, &prng);
+        permute(block, block1, dct->format);
 
         dct->func(block);
         mmx_emms();
@@ -316,45 +325,14 @@ static int dct_error(const struct algo *dct, int test, int is_idct, int speed)
         return 0;
 
     /* speed test */
-    for (i = 0; i < 64; i++)
-        block1[i] = 0;
-
-    switch (test) {
-    case 0:
-        for (i = 0; i < 64; i++)
-            block1[i] = av_lfg_get(&prng) % 512 - 256;
-        if (is_idct) {
-            ff_ref_fdct(block1);
-            for (i = 0; i < 64; i++)
-                block1[i] >>= 3;
-        }
-        break;
-    case 1:
-    case 2:
-        block1[0] = av_lfg_get(&prng) % 512 - 256;
-        block1[1] = av_lfg_get(&prng) % 512 - 256;
-        block1[2] = av_lfg_get(&prng) % 512 - 256;
-        block1[3] = av_lfg_get(&prng) % 512 - 256;
-        break;
-    }
-
-    if (dct->format == MMX_PERM) {
-        for (i = 0; i < 64; i++)
-            block[idct_mmx_perm[i]] = block1[i];
-    } else if (dct->format == MMX_SIMPLE_PERM) {
-        for (i = 0; i < 64; i++)
-            block[idct_simple_mmx_perm[i]] = block1[i];
-    } else {
-        for (i = 0; i < 64; i++)
-            block[i] = block1[i];
-    }
+    init_block(block, test, is_idct, &prng);
+    permute(block1, block, dct->format);
 
     ti = gettime();
     it1 = 0;
     do {
         for (it = 0; it < NB_ITS_SPEED; it++) {
-            for (i = 0; i < 64; i++)
-                block[i] = block1[i];
+            memcpy(block, block1, sizeof(block));
             dct->func(block);
         }
         it1 += NB_ITS_SPEED;
@@ -532,13 +510,6 @@ int main(int argc, char **argv)
     ff_ref_dct_init();
     idct_mmx_init();
 
-    for (i = 0; i < 256; i++)
-        cropTbl[i + MAX_NEG_CROP] = i;
-    for (i = 0; i < MAX_NEG_CROP; i++) {
-        cropTbl[i] = 0;
-        cropTbl[i + MAX_NEG_CROP + 256] = 255;
-    }
-
     for (;;) {
         c = getopt(argc, argv, "ih4t");
         if (c == -1)
@@ -563,7 +534,7 @@ int main(int argc, char **argv)
     if (optind < argc)
         test = atoi(argv[optind]);
 
-    printf("ffmpeg DCT/IDCT test\n");
+    printf("Libav DCT/IDCT test\n");
 
     if (test_248_dct) {
         idct248_error("SIMPLE-C", ff_simple_idct248_put, speed);