Move daala_fdct4() / daala_idct4() into daala_tx.c.

This commit has no impact on metrics.

Change-Id: I218f2a95542ae68491d2844becf6018eda529a1f
diff --git a/aom_dsp/inv_txfm.c b/aom_dsp/inv_txfm.c
index ffd0d8e..c6c2f64 100644
--- a/aom_dsp/inv_txfm.c
+++ b/aom_dsp/inv_txfm.c
@@ -97,18 +97,6 @@
   }
 }
 
-#if CONFIG_DAALA_DCT4
-void aom_idct4_c(const tran_low_t *input, tran_low_t *output) {
-  int i;
-  od_coeff x[4];
-  od_coeff y[4];
-  for (i = 0; i < 4; i++) y[i] = input[i];
-  od_bin_idct4(x, 1, y);
-  for (i = 0; i < 4; i++) output[i] = (tran_low_t)x[i];
-}
-
-#else
-
 void aom_idct4_c(const tran_low_t *input, tran_low_t *output) {
   tran_low_t step[4];
   tran_high_t temp1, temp2;
@@ -128,7 +116,6 @@
   output[2] = WRAPLOW(step[1] - step[2]);
   output[3] = WRAPLOW(step[0] - step[3]);
 }
-#endif
 
 void aom_idct4x4_16_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
   tran_low_t out[4 * 4];
diff --git a/av1/common/daala_tx.c b/av1/common/daala_tx.c
index c35cc44..9ad6388 100644
--- a/av1/common/daala_tx.c
+++ b/av1/common/daala_tx.c
@@ -4106,3 +4106,21 @@
   x[63*xstride] = (od_coeff)t;
 }
 #endif
+
+void daala_fdct4(const tran_low_t *input, tran_low_t *output) {
+  int i;
+  od_coeff x[4];
+  od_coeff y[4];
+  for (i = 0; i < 4; i++) x[i] = (od_coeff)input[i];
+  od_bin_fdct4(y, x, 1);
+  for (i = 0; i < 4; i++) output[i] = (tran_low_t)y[i];
+}
+
+void daala_idct4(const tran_low_t *input, tran_low_t *output) {
+  int i;
+  od_coeff x[4];
+  od_coeff y[4];
+  for (i = 0; i < 4; i++) y[i] = input[i];
+  od_bin_idct4(x, 1, y);
+  for (i = 0; i < 4; i++) output[i] = (tran_low_t)x[i];
+}
diff --git a/av1/common/daala_tx.h b/av1/common/daala_tx.h
index 16ab4c5..061876f 100644
--- a/av1/common/daala_tx.h
+++ b/av1/common/daala_tx.h
@@ -1,8 +1,12 @@
 #ifndef AOM_DSP_DAALA_TX_H_
 #define AOM_DSP_DAALA_TX_H_
 
+#include "aom_dsp/aom_dsp_common.h"
 #include "av1/common/odintrin.h"
 
+void daala_fdct4(const tran_low_t *input, tran_low_t *output);
+void daala_idct4(const tran_low_t *input, tran_low_t *output);
+
 void od_bin_fdct4(od_coeff y[4], const od_coeff *x, int xstride);
 void od_bin_idct4(od_coeff *x, int xstride, const od_coeff y[4]);
 void od_bin_fdst4(od_coeff y[4], const od_coeff *x, int xstride);
diff --git a/av1/common/idct.c b/av1/common/idct.c
index 086b6e2..a9bfb9a 100644
--- a/av1/common/idct.c
+++ b/av1/common/idct.c
@@ -19,6 +19,10 @@
 #include "av1/common/blockd.h"
 #include "av1/common/enums.h"
 #include "av1/common/idct.h"
+#if CONFIG_DAALA_DCT4 || CONFIG_DAALA_DCT8 || CONFIG_DAALA_DCT16 || \
+    CONFIG_DAALA_DCT32 || CONFIG_DAALA_DCT64
+#include "av1/common/daala_tx.h"
+#endif
 
 int av1_get_tx_scale(const TX_SIZE tx_size) {
   const int pels = tx_size_2d[tx_size];
@@ -326,6 +330,26 @@
   }
 #endif
   static const transform_2d IHT_4[] = {
+#if CONFIG_DAALA_DCT4
+    { daala_idct4, daala_idct4 },    // DCT_DCT  = 0
+    { aom_iadst4_c, daala_idct4 },   // ADST_DCT = 1
+    { daala_idct4, aom_iadst4_c },   // DCT_ADST = 2
+    { aom_iadst4_c, aom_iadst4_c },  // ADST_ADST = 3
+#if CONFIG_EXT_TX
+    { aom_iadst4_c, daala_idct4 },   // FLIPADST_DCT
+    { daala_idct4, aom_iadst4_c },   // DCT_FLIPADST
+    { aom_iadst4_c, aom_iadst4_c },  // FLIPADST_FLIPADST
+    { aom_iadst4_c, aom_iadst4_c },  // ADST_FLIPADST
+    { aom_iadst4_c, aom_iadst4_c },  // FLIPADST_ADST
+    { iidtx4_c, iidtx4_c },          // IDTX
+    { daala_idct4, iidtx4_c },       // V_DCT
+    { iidtx4_c, daala_idct4 },       // H_DCT
+    { aom_iadst4_c, iidtx4_c },      // V_ADST
+    { iidtx4_c, aom_iadst4_c },      // H_ADST
+    { aom_iadst4_c, iidtx4_c },      // V_FLIPADST
+    { iidtx4_c, aom_iadst4_c },      // H_FLIPADST
+#endif
+#else
     { aom_idct4_c, aom_idct4_c },    // DCT_DCT  = 0
     { aom_iadst4_c, aom_idct4_c },   // ADST_DCT = 1
     { aom_idct4_c, aom_iadst4_c },   // DCT_ADST = 2
@@ -344,6 +368,7 @@
     { aom_iadst4_c, iidtx4_c },      // V_FLIPADST
     { iidtx4_c, aom_iadst4_c },      // H_FLIPADST
 #endif
+#endif
   };
 
   int i, j;
diff --git a/av1/encoder/dct.c b/av1/encoder/dct.c
index 128b499..8027c9a 100644
--- a/av1/encoder/dct.c
+++ b/av1/encoder/dct.c
@@ -43,18 +43,6 @@
 #endif
 }
 
-#if CONFIG_DAALA_DCT4
-static void fdct4(const tran_low_t *input, tran_low_t *output) {
-  int i;
-  od_coeff x[4];
-  od_coeff y[4];
-  for (i = 0; i < 4; i++) x[i] = (od_coeff)input[i];
-  od_bin_fdct4(y, x, 1);
-  for (i = 0; i < 4; i++) output[i] = (tran_low_t)y[i];
-}
-
-#else
-
 static void fdct4(const tran_low_t *input, tran_low_t *output) {
   tran_high_t temp;
   tran_low_t step[4];
@@ -90,7 +78,6 @@
 
   range_check(output, 4, 16);
 }
-#endif
 
 #if CONFIG_DAALA_DCT8
 static void fdct8(const tran_low_t *input, tran_low_t *output) {
@@ -1377,6 +1364,26 @@
 #endif
   {
     static const transform_2d FHT[] = {
+#if CONFIG_DAALA_DCT4
+      { daala_fdct4, daala_fdct4 },  // DCT_DCT
+      { fadst4, daala_fdct4 },       // ADST_DCT
+      { daala_fdct4, fadst4 },       // DCT_ADST
+      { fadst4, fadst4 },            // ADST_ADST
+#if CONFIG_EXT_TX
+      { fadst4, daala_fdct4 },  // FLIPADST_DCT
+      { daala_fdct4, fadst4 },  // DCT_FLIPADST
+      { fadst4, fadst4 },       // FLIPADST_FLIPADST
+      { fadst4, fadst4 },       // ADST_FLIPADST
+      { fadst4, fadst4 },       // FLIPADST_ADST
+      { fidtx4, fidtx4 },       // IDTX
+      { daala_fdct4, fidtx4 },  // V_DCT
+      { fidtx4, daala_fdct4 },  // H_DCT
+      { fadst4, fidtx4 },       // V_ADST
+      { fidtx4, fadst4 },       // H_ADST
+      { fadst4, fidtx4 },       // V_FLIPADST
+      { fidtx4, fadst4 },       // H_FLIPADST
+#endif
+#else
       { fdct4, fdct4 },    // DCT_DCT
       { fadst4, fdct4 },   // ADST_DCT
       { fdct4, fadst4 },   // DCT_ADST
@@ -1395,6 +1402,7 @@
       { fadst4, fidtx4 },  // V_FLIPADST
       { fidtx4, fadst4 },  // H_FLIPADST
 #endif
+#endif
     };
     const transform_2d ht = FHT[tx_type];
     tran_low_t out[4 * 4];