remove static from fdct4/8/16/32

remove static from fdct4/8/16/32 in vp10/encoder/dct.c
add prefix vp10_ to fdct4/8/16/32
add vp10/encoder/dct.h

Change-Id: I644827a191c1a7761850ec0b1da705638b618c66

test/test.mk

@@ -168,7 +168,7 @@ TEST_INTRA_PRED_SPEED_SRCS-$(CONFIG_VP9) := test_intra_pred_speed.cc
 TEST_INTRA_PRED_SPEED_SRCS-$(CONFIG_VP9) += ../md5_utils.h ../md5_utils.c
 
 ## VP10
-LIBVPX_TEST_SRCS-$(CONFIG_VP10_ENCODER) += vp10_dct_test.cc
+LIBVPX_TEST_SRCS-$(CONFIG_VP10) += vp10_dct_test.cc
 LIBVPX_TEST_SRCS-$(CONFIG_VP10) += vp10_inv_txfm_test.cc
 
 endif # CONFIG_SHARED

test/vp10_dct_test.cc

@@ -17,10 +17,7 @@
 #include "test/util.h"
 #include "./vpx_config.h"
 #include "vpx_ports/msvc.h"
-
-#undef CONFIG_COEFFICIENT_RANGE_CHECKING
-#define CONFIG_COEFFICIENT_RANGE_CHECKING 1
-#include "vp10/encoder/dct.c"
+#include "vp10/encoder/dct.h"
 
 using libvpx_test::ACMRandom;
 
@@ -105,8 +102,8 @@ TEST_P(Vp10FwdTxfm, RunFwdAccuracyCheck) {
 INSTANTIATE_TEST_CASE_P(
     C, Vp10FwdTxfm,
     ::testing::Values(
-        FdctParam(&fdct4, &reference_dct_1d, 4, 1),
-        FdctParam(&fdct8, &reference_dct_1d, 8, 1),
-        FdctParam(&fdct16, &reference_dct_1d, 16, 2),
-        FdctParam(&fdct32, &reference_dct_1d, 32, 4)));
+        FdctParam(&vp10_fdct4, &reference_dct_1d, 4, 1),
+        FdctParam(&vp10_fdct8, &reference_dct_1d, 8, 1),
+        FdctParam(&vp10_fdct16, &reference_dct_1d, 16, 2),
+        FdctParam(&vp10_fdct32_local, &reference_dct_1d, 32, 4)));
 }  // namespace

vp10/encoder/dct.c

@@ -34,7 +34,7 @@ static INLINE void range_check(const tran_low_t *input, const int size,
 #endif
 }
 
-static void fdct4(const tran_low_t *input, tran_low_t *output) {
+void vp10_fdct4(const tran_low_t *input, tran_low_t *output) {
   tran_high_t temp;
   tran_low_t step[4];
 
@@ -70,7 +70,7 @@ static void fdct4(const tran_low_t *input, tran_low_t *output) {
   range_check(output, 4, 13);
 }
 
-static void fdct8(const tran_low_t *input, tran_low_t *output) {
+void vp10_fdct8(const tran_low_t *input, tran_low_t *output) {
   tran_high_t temp;
   tran_low_t step[8];
 
@@ -148,7 +148,7 @@ static void fdct8(const tran_low_t *input, tran_low_t *output) {
   range_check(output, 8, 14);
 }
 
-static void fdct16(const tran_low_t *input, tran_low_t *output) {
+void vp10_fdct16(const tran_low_t *input, tran_low_t *output) {
   tran_high_t temp;
   tran_low_t step[16];
 
@@ -322,7 +322,8 @@ static void fdct16(const tran_low_t *input, tran_low_t *output) {
   range_check(output, 16, 16);
 }
 
-static void fdct32(const tran_low_t *input, tran_low_t *output) {
+// TODO(angiebird): Unify this with vp10_fwd_txfm.c: vp10_fdct32
+void vp10_fdct32_local(const tran_low_t *input, tran_low_t *output) {
   tran_high_t temp;
   tran_low_t step[32];
 
@@ -995,24 +996,24 @@ static void fadst16(const tran_low_t *input, tran_low_t *output) {
 }
 
 static const transform_2d FHT_4[] = {
-  { fdct4,  fdct4  },  // DCT_DCT  = 0
-  { fadst4, fdct4  },  // ADST_DCT = 1
-  { fdct4,  fadst4 },  // DCT_ADST = 2
-  { fadst4, fadst4 }   // ADST_ADST = 3
+  { vp10_fdct4, vp10_fdct4 },  // DCT_DCT  = 0
+  { fadst4,     vp10_fdct4 },  // ADST_DCT = 1
+  { vp10_fdct4, fadst4     },  // DCT_ADST = 2
+  { fadst4,     fadst4     }   // ADST_ADST = 3
 };
 
 static const transform_2d FHT_8[] = {
-  { fdct8,  fdct8  },  // DCT_DCT  = 0
-  { fadst8, fdct8  },  // ADST_DCT = 1
-  { fdct8,  fadst8 },  // DCT_ADST = 2
-  { fadst8, fadst8 }   // ADST_ADST = 3
+  { vp10_fdct8, vp10_fdct8 },  // DCT_DCT  = 0
+  { fadst8,     vp10_fdct8 },  // ADST_DCT = 1
+  { vp10_fdct8, fadst8     },  // DCT_ADST = 2
+  { fadst8,     fadst8     }   // ADST_ADST = 3
 };
 
 static const transform_2d FHT_16[] = {
-  { fdct16,  fdct16  },  // DCT_DCT  = 0
-  { fadst16, fdct16  },  // ADST_DCT = 1
-  { fdct16,  fadst16 },  // DCT_ADST = 2
-  { fadst16, fadst16 }   // ADST_ADST = 3
+  { vp10_fdct16, vp10_fdct16 },  // DCT_DCT  = 0
+  { fadst16,     vp10_fdct16 },  // ADST_DCT = 1
+  { vp10_fdct16, fadst16     },  // DCT_ADST = 2
+  { fadst16,     fadst16     }   // ADST_ADST = 3
 };
 
 void vp10_fht4x4_c(const int16_t *input, tran_low_t *output,
@@ -1123,7 +1124,7 @@ void vp10_fdct8x8_quant_c(const int16_t *input, int stride,
 
   // Rows
   for (i = 0; i < 8; ++i) {
-    fdct8(&intermediate[i * 8], &coeff_ptr[i * 8]);
+    vp10_fdct8(&intermediate[i * 8], &coeff_ptr[i * 8]);
     for (j = 0; j < 8; ++j)
       coeff_ptr[j + i * 8] /= 2;
   }

vp10/encoder/dct.h

+/*
+ *  Copyright (c) 2015 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#ifndef VP10_ENCODER_DCT_H_
+#define VP10_ENCODER_DCT_H_
+
+#include "vpx_dsp/vpx_dsp_common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void vp10_fdct4(const tran_low_t *input, tran_low_t *output);
+void vp10_fdct8(const tran_low_t *input, tran_low_t *output);
+void vp10_fdct16(const tran_low_t *input, tran_low_t *output);
+void vp10_fdct32_local(const tran_low_t *input, tran_low_t *output);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP10_ENCODER_DCT_H_

vp10/vp10cx.mk

@@ -23,6 +23,7 @@ VP10_CX_SRCS-yes += encoder/context_tree.c
 VP10_CX_SRCS-yes += encoder/context_tree.h
 VP10_CX_SRCS-yes += encoder/cost.h
 VP10_CX_SRCS-yes += encoder/cost.c
+VP10_CX_SRCS-yes += encoder/dct.h
 VP10_CX_SRCS-yes += encoder/dct.c
 VP10_CX_SRCS-$(CONFIG_VP9_TEMPORAL_DENOISING) += encoder/denoiser.c
 VP10_CX_SRCS-$(CONFIG_VP9_TEMPORAL_DENOISING) += encoder/denoiser.h