shithub: openh264

ref: 4062fa9d34c6e9bc3d5b7ea491bcf9096d323011
dir: /test/encoder/EncUT_GetIntraPredictor.cpp/

#include<gtest/gtest.h>
#include<stdlib.h>

#include "get_intra_predictor.h"
#include "ls_defines.h"
#include "macros.h"

using namespace WelsSVCEnc;

TEST(GetIntraPredictorTest, TestGetI4x4LumaPredV) {
  uint8_t *pPred = new uint8_t[64];
  uint8_t	*pRef  = new uint8_t[64];
  for (int i=0; i<64; i++)
    pRef[i] = rand() % 256;

  const int32_t kkiStride = 0;
  const uint32_t kuiCpuFlag = 0;
  WelsInitFillingPredFuncs(kuiCpuFlag);
  WelsI4x4LumaPredV_c(pPred, pRef, kkiStride);

  for (int i=0; i<4; i++)
    EXPECT_EQ(LD32(&pPred[4*i]),LD32(&pRef[-kkiStride]));

  delete []pRef;
  delete []pPred;
}

TEST(GetIntraPredictorTest, TestGetI4x4LumaPredH)
{
  const int32_t kiStride = rand()%256+16;
  const uint32_t kiStride2 = (kiStride<<1)-1;
  const uint32_t kiStride3 = kiStride + kiStride2;

  uint8_t *pPred = new uint8_t[64];
  uint8_t *pRef  = new uint8_t[kiStride3+1];

  for (int i=0; i<(static_cast<int32_t>(kiStride3+1)); i++)
    pRef[i] = rand() % 256;

  pRef++;

  const uint8_t kuiH1 = pRef[-1];
  const uint8_t kuiH2 = pRef[kiStride-1];
  const uint8_t kuiH3 = pRef[kiStride2];
  const uint8_t kuiH4 = pRef[kiStride3];
  const uint8_t kuiV1[4] = {kuiH1, kuiH1, kuiH1, kuiH1};
  const uint8_t kuiV2[4] = {kuiH2, kuiH2, kuiH2, kuiH2};
  const uint8_t kuiV3[4] = {kuiH3, kuiH3, kuiH3, kuiH3};
  const uint8_t kuiV4[4] = {kuiH4, kuiH4, kuiH4, kuiH4};

  const uint32_t kuiCpuFlag = 0;

  ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16)// TobeCont'd about assign opt as follows
  ST32(&uiV[0], LD32(kuiV1));
  ST32(&uiV[4], LD32(kuiV2));
  ST32(&uiV[8], LD32(kuiV3));
  ST32(&uiV[12], LD32(kuiV4));

  WelsInitFillingPredFuncs(kuiCpuFlag);
  WelsI4x4LumaPredH_c(pPred, pRef, kiStride);

  for (int i=0; i<4; i++)
    EXPECT_EQ(LD32(&pPred[4*i]), LD32(&uiV[4*i]));

  pRef--;

  delete []pRef;
  delete []pPred;
}

TEST(GetIntraPredictorTest, TestGetI4x4LumaPredDDL) {
  const int32_t kiStride = 0;

  uint8_t *pPred = new uint8_t[64];
  uint8_t *pRef  = new uint8_t[64];
  for (int i=0; i<64; i++)
    pRef[i] = rand() % 256;

  const uint8_t kuiT0   = pRef[-kiStride];
  const uint8_t kuiT1   = pRef[1-kiStride];
  const uint8_t kuiT2   = pRef[2-kiStride];
  const uint8_t kuiT3   = pRef[3-kiStride];
  const uint8_t kuiT4   = pRef[4-kiStride];
  const uint8_t kuiT5   = pRef[5-kiStride];
  const uint8_t kuiT6   = pRef[6-kiStride];
  const uint8_t kuiT7   = pRef[7-kiStride];
  const uint8_t kuiDDL0 = (2 + kuiT0 + kuiT2 + (kuiT1<<1))>>2;
  const uint8_t kuiDDL1 = (2 + kuiT1 + kuiT3 + (kuiT2<<1))>>2;
  const uint8_t kuiDDL2 = (2 + kuiT2 + kuiT4 + (kuiT3<<1))>>2;
  const uint8_t kuiDDL3 = (2 + kuiT3 + kuiT5 + (kuiT4<<1))>>2;
  const uint8_t kuiDDL4 = (2 + kuiT4 + kuiT6 + (kuiT5<<1))>>2;
  const uint8_t kuiDDL5 = (2 + kuiT5 + kuiT7 + (kuiT6<<1))>>2;
  const uint8_t kuiDDL6 = (2 + kuiT6 + kuiT7 + (kuiT7<<1))>>2;
  ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16)	// TobeCont'd about assign opt as follows
  uiV[0] = kuiDDL0;
  uiV[1] = uiV[4] = kuiDDL1;
  uiV[2] = uiV[5] = uiV[8] = kuiDDL2;
  uiV[3] = uiV[6] = uiV[9] = uiV[12] = kuiDDL3;
  uiV[7] = uiV[10]= uiV[13]= kuiDDL4;
  uiV[11]= uiV[14]= kuiDDL5;
  uiV[15] = kuiDDL6;

  const uint32_t kuiCpuFlag = 0;
  WelsInitFillingPredFuncs(kuiCpuFlag);
  WelsI4x4LumaPredDDL_c(pPred, pRef, kiStride);

  for (int i=0; i<4; i++)
    EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i]));

  delete []pRef;
  delete []pPred;
}

TEST(GetIntraPredictorTest, TestGetI4x4LumaPredDDLTop) {
  const int32_t kiStride = 0;

  uint8_t *pPred = new uint8_t[64];
  uint8_t *pRef  = new uint8_t[64];
  for (int i=0; i<64; i++)
    pRef[i] = rand() % 256;

  const uint8_t kuiT0   = pRef[-kiStride];
  const uint8_t kuiT1   = pRef[1-kiStride];
  const uint8_t kuiT2   = pRef[2-kiStride];
  const uint8_t kuiT3   = pRef[3-kiStride];
  const uint8_t kuiDLT0 = (2 + kuiT0 + kuiT2 + (kuiT1<<1))>>2;
  const uint8_t kuiDLT1 = (2 + kuiT1 + kuiT3 + (kuiT2<<1))>>2;
  const uint8_t kuiDLT2 = (2 + kuiT2 + kuiT3 + (kuiT3<<1))>>2;
  const uint8_t kuiDLT3 = (2 + (kuiT3<<2))>>2;
  ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16) // TobeCont'd about assign opt as follows
  memset(&uiV[6], kuiDLT3, 10*sizeof(uint8_t));
  uiV[0] = kuiDLT0;
  uiV[1] = uiV[4] = kuiDLT1;
  uiV[2] = uiV[5] = uiV[8] = kuiDLT2;
  uiV[3] = kuiDLT3;

  const uint32_t kuiCpuFlag = 0;
  WelsInitFillingPredFuncs(kuiCpuFlag);
  WelsI4x4LumaPredDDLTop_c(pPred, pRef, kiStride);

  for (int i=0; i<4; i++)
    EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i]));

  delete []pRef;
  delete []pPred;
}

TEST(GetIntraPredictorTest, TestGetI4x4LumaPredDDR) {
  const int32_t kiStride = rand()%256+16;
  const int32_t kiStride2	= kiStride<<1;
  const int32_t kiStride3	= kiStride + kiStride2;

  uint8_t *pPred = new uint8_t[64];
  uint8_t *pRef  = new uint8_t[kiStride3+kiStride+1];

  for (int i=0; i<kiStride3+kiStride+1; i++)
    pRef[i] = rand() % 256;

  pRef += kiStride + 1;

  const uint8_t kuiLT   = pRef[-kiStride-1];
  const uint8_t kuiL0   = pRef[-1];
  const uint8_t kuiL1   = pRef[kiStride-1];
  const uint8_t kuiL2   = pRef[kiStride2-1];
  const uint8_t kuiL3   = pRef[kiStride3-1];
  const uint8_t kuiT0   = pRef[-kiStride];
  const uint8_t kuiT1   = pRef[1-kiStride];
  const uint8_t kuiT2   = pRef[2-kiStride];
  const uint8_t kuiT3   = pRef[3-kiStride];
  const uint16_t kuiTL0 = 1 + kuiLT + kuiL0;
  const uint16_t kuiLT0 = 1 + kuiLT + kuiT0;
  const uint16_t kuiT01 = 1 + kuiT0 + kuiT1;
  const uint16_t kuiT12 = 1 + kuiT1 + kuiT2;
  const uint16_t kuiT23 = 1 + kuiT2 + kuiT3;
  const uint16_t kuiL01 = 1 + kuiL0 + kuiL1;
  const uint16_t kuiL12 = 1 + kuiL1 + kuiL2;
  const uint16_t kuiL23 = 1 + kuiL2 + kuiL3;
  const uint8_t kuiDDR0 = (kuiTL0 + kuiLT0) >> 2;
  const uint8_t kuiDDR1 = (kuiLT0 + kuiT01) >> 2;
  const uint8_t kuiDDR2 = (kuiT01 + kuiT12) >> 2;
  const uint8_t kuiDDR3 = (kuiT12 + kuiT23) >> 2;
  const uint8_t kuiDDR4 = (kuiTL0 + kuiL01) >> 2;
  const uint8_t kuiDDR5 = (kuiL01 + kuiL12) >> 2;
  const uint8_t kuiDDR6 = (kuiL12 + kuiL23) >> 2;
  ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16) // TobeCont'd about assign opt as follows
  uiV[0] = uiV[5] = uiV[10] = uiV[15] = kuiDDR0;
  uiV[1] = uiV[6] = uiV[11] = kuiDDR1;
  uiV[2] = uiV[7] = kuiDDR2;
  uiV[3] = kuiDDR3;
  uiV[4] = uiV[9] = uiV[14] = kuiDDR4;
  uiV[8] = uiV[13] = kuiDDR5;
  uiV[12]= kuiDDR6;

  const uint32_t kuiCpuFlag = 0;
  WelsInitFillingPredFuncs(kuiCpuFlag);
  WelsI4x4LumaPredDDR_c(pPred, pRef, kiStride);

  for (int i=0; i<4; i++)
    EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i]));

  pRef -= kiStride + 1;

  delete []pRef;
  delete []pPred;
}

TEST(GetIntraPredictorTest, TestGetI4x4LumaPredVL) {
  const int32_t kiStride = 0;

  uint8_t *pPred = new uint8_t[64];
  uint8_t *pRef  = new uint8_t[64];
  for (int i=0; i<64; i++)
    pRef[i] = rand() % 256;

  const uint8_t kuiT0  = pRef[-kiStride];
  const uint8_t kuiT1  = pRef[1-kiStride];
  const uint8_t kuiT2  = pRef[2-kiStride];
  const uint8_t kuiT3  = pRef[3-kiStride];
  const uint8_t kuiT4  = pRef[4-kiStride];
  const uint8_t kuiT5  = pRef[5-kiStride];
  const uint8_t kuiT6  = pRef[6-kiStride];
  const uint8_t kuiVL0 = (1 + kuiT0 + kuiT1)>>1;
  const uint8_t kuiVL1 = (1 + kuiT1 + kuiT2)>>1;
  const uint8_t kuiVL2 = (1 + kuiT2 + kuiT3)>>1;
  const uint8_t kuiVL3 = (1 + kuiT3 + kuiT4)>>1;
  const uint8_t kuiVL4 = (1 + kuiT4 + kuiT5)>>1;
  const uint8_t kuiVL5 = (2 + kuiT0 + (kuiT1<<1) + kuiT2)>>2;
  const uint8_t kuiVL6 = (2 + kuiT1 + (kuiT2<<1) + kuiT3)>>2;
  const uint8_t kuiVL7 = (2 + kuiT2 + (kuiT3<<1) + kuiT4)>>2;
  const uint8_t kuiVL8 = (2 + kuiT3 + (kuiT4<<1) + kuiT5)>>2;
  const uint8_t kuiVL9 = (2 + kuiT4 + (kuiT5<<1) + kuiT6)>>2;
  ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16) // TobeCont'd about assign opt as follows
  uiV[0] = kuiVL0;
  uiV[1] = uiV[8] = kuiVL1;
  uiV[2] = uiV[9] = kuiVL2;
  uiV[3] = uiV[10]= kuiVL3;
  uiV[4] = kuiVL5;
  uiV[5] = uiV[12] = kuiVL6;
  uiV[6] = uiV[13] = kuiVL7;
  uiV[7] = uiV[14] = kuiVL8;
  uiV[11]= kuiVL4;
  uiV[15]= kuiVL9;

  const uint32_t kuiCpuFlag = 0;
  WelsInitFillingPredFuncs(kuiCpuFlag);
  WelsI4x4LumaPredVL_c(pPred, pRef, kiStride);

  for (int i=0; i<4; i++)
    EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i]));

  delete []pRef;
  delete []pPred;
}

TEST(GetIntraPredictorTest, TestGetI4x4LumaPredVLTop) {
  const int32_t kiStride = 0;

  uint8_t *pPred = new uint8_t[64];
  uint8_t *pRef  = new uint8_t[64];
  for (int i=0; i<64; i++)
    pRef[i] = rand() % 256;

  pRef++;

  uint8_t *pTopLeft = &pRef[-kiStride-1];	// top-left

  const uint8_t kuiT0   = *(pTopLeft+1);
  const uint8_t kuiT1   = *(pTopLeft+2);
  const uint8_t kuiT2   = *(pTopLeft+3);
  const uint8_t kuiT3   = *(pTopLeft+4);
  const uint8_t kuiVLT0 = (1 + kuiT0 + kuiT1)>>1;
  const uint8_t kuiVLT1 = (1 + kuiT1 + kuiT2)>>1;
  const uint8_t kuiVLT2 = (1 + kuiT2 + kuiT3)>>1;
  const uint8_t kuiVLT3 = (1 + (kuiT3<<1))>>1;
  const uint8_t kuiVLT4 = (2 + kuiT0 + (kuiT1<<1) + kuiT2)>>2;
  const uint8_t kuiVLT5 = (2 + kuiT1 + (kuiT2<<1) + kuiT3)>>2;
  const uint8_t kuiVLT6 = (2 + kuiT2 + (kuiT3<<1) + kuiT3)>>2;
  const uint8_t kuiVLT7 = (2 + (kuiT3<<2))>>2;
  ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16) // TobeCont'd about assign opt as follows
  uiV[0] = kuiVLT0;
  uiV[1] = uiV[8] = kuiVLT1;
  uiV[2] = uiV[9] = kuiVLT2;
  uiV[3] = uiV[10]= uiV[11] = kuiVLT3;
  uiV[4] = kuiVLT4;
  uiV[5] = uiV[12] = kuiVLT5;
  uiV[6] = uiV[13] = kuiVLT6;
  uiV[7] = uiV[14] = uiV[15] = kuiVLT7;

  const uint32_t kuiCpuFlag = 0;
  WelsInitFillingPredFuncs(kuiCpuFlag);
  WelsI4x4LumaPredVLTop_c(pPred, pRef, kiStride);

  for (int i=0; i<4; i++)
    EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i]));

  pRef--;

  delete []pRef;
  delete []pPred;
}

TEST(GetIntraPredictorTest, TestGetI4x4LumaPredVR) {
  const int32_t kiStride = rand()%256+16;
  const int32_t kiStride2 = kiStride<<1;

  uint8_t *pPred = new uint8_t[64];
  uint8_t *pRef  = new uint8_t[kiStride2+kiStride+1];

  for (int i=0; i<kiStride2+kiStride+1; i++)
    pRef[i] = rand() % 256;

  pRef += kiStride + 1;

  const uint8_t kuiLT  = pRef[-kiStride-1];	// top-left
  const uint8_t kuiL0  = pRef[-1];
  const uint8_t kuiL1  = pRef[kiStride-1];
  const uint8_t kuiL2  = pRef[kiStride2-1];
  const uint8_t kuiT0  = pRef[-kiStride];
  const uint8_t kuiT1  = pRef[1-kiStride];
  const uint8_t kuiT2  = pRef[2-kiStride];
  const uint8_t kuiT3  = pRef[3-kiStride];
  const uint8_t kuiVR0 = (1 + kuiLT + kuiT0) >> 1;
  const uint8_t kuiVR1 = (1 + kuiT0 + kuiT1) >> 1;
  const uint8_t kuiVR2 = (1 + kuiT1 + kuiT2) >> 1;
  const uint8_t kuiVR3 = (1 + kuiT2 + kuiT3) >> 1;
  const uint8_t kuiVR4 = (2 + kuiL0 + (kuiLT << 1) + kuiT0) >> 2;
  const uint8_t kuiVR5 = (2 + kuiLT + (kuiT0 << 1) + kuiT1) >> 2;
  const uint8_t kuiVR6 = (2 + kuiT0 + (kuiT1 << 1) + kuiT2) >> 2;
  const uint8_t kuiVR7 = (2 + kuiT1 + (kuiT2 << 1) + kuiT3) >> 2;
  const uint8_t kuiVR8 = (2 + kuiLT + (kuiL0 << 1) + kuiL1) >> 2;
  const uint8_t kuiVR9 = (2 + kuiL0 + (kuiL1 << 1) + kuiL2) >> 2;
  ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16)	// TobeCont'd about assign opt as follows
  uiV[0] = uiV[9] = kuiVR0;
  uiV[1] = uiV[10] = kuiVR1;
  uiV[2] = uiV[11] = kuiVR2;
  uiV[3] = kuiVR3;
  uiV[4] = uiV[13] = kuiVR4;
  uiV[5] = uiV[14] = kuiVR5;
  uiV[6] = uiV[15] = kuiVR6;
  uiV[7] = kuiVR7;
  uiV[8] = kuiVR8;
  uiV[12]= kuiVR9;

  const uint32_t kuiCpuFlag = 0;
  WelsInitFillingPredFuncs(kuiCpuFlag);
  WelsI4x4LumaPredVR_c(pPred, pRef, kiStride);

  for (int i=0; i<4; i++)
    EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i]));

  pRef -= kiStride + 1;

  delete []pRef;
  delete []pPred;
}

TEST(GetIntraPredictorTest, TestGetI4x4LumaPredHU) {
  const int32_t kiStride = rand()%256+16;
  const int32_t kiStride2 = kiStride<<1;
  const int32_t kiStride3 = kiStride + kiStride2;

  uint8_t *pPred = new uint8_t[64];
  uint8_t *pRef  = new uint8_t[kiStride3+1];

  for (int i=0; i<kiStride3+1; i++)
    pRef[i] = rand() % 256;

  pRef++;

  const uint8_t kuiL0   = pRef[-1];
  const uint8_t kuiL1   = pRef[kiStride-1];
  const uint8_t kuiL2   = pRef[kiStride2-1];
  const uint8_t kuiL3   = pRef[kiStride3-1];
  const uint16_t kuiL01 = (1 + kuiL0 + kuiL1);
  const uint16_t kuiL12 = (1 + kuiL1 + kuiL2);
  const uint16_t kuiL23 = (1 + kuiL2 + kuiL3);
  const uint8_t kuiHU0  = kuiL01 >> 1;
  const uint8_t kuiHU1  = (kuiL01 + kuiL12) >> 2;
  const uint8_t kuiHU2  = kuiL12 >> 1;
  const uint8_t kuiHU3  = (kuiL12 + kuiL23) >> 2;
  const uint8_t kuiHU4  = kuiL23 >> 1;
  const uint8_t kuiHU5  = (1 + kuiL23 + (kuiL3 << 1)) >> 2;
  ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16)	// TobeCont'd about assign opt as follows
  uiV[0] = kuiHU0;
  uiV[1] = kuiHU1;
  uiV[2] = uiV[4] = kuiHU2;
  uiV[3] = uiV[5] = kuiHU3;
  uiV[6] = uiV[8] = kuiHU4;
  uiV[7] = uiV[9] = kuiHU5;
  memset(&uiV[10], kuiL3, 6*sizeof(uint8_t));

  const uint32_t kuiCpuFlag = 0;
  WelsInitFillingPredFuncs(kuiCpuFlag);
  WelsI4x4LumaPredHU_c(pPred, pRef, kiStride);

  for (int i=0; i<4; i++)
    EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i]));

  pRef--;

  delete []pRef;
  delete []pPred;
}

TEST(GetIntraPredictorTest, TestGetI4x4LumaPredHD) {
  const int32_t kiStride = rand()%256+16;
  const int32_t kiStride2 = kiStride<<1;
  const int32_t kiStride3 = kiStride + kiStride2;

  uint8_t *pPred = new uint8_t[64];
  uint8_t *pRef  = new uint8_t[kiStride3+kiStride+1];

  for (int i=0; i<kiStride3+kiStride+1; i++)
    pRef[i] = rand() % 256;

  pRef += kiStride + 1;

  const uint8_t kuiLT  = pRef[-kiStride-1];	// top-left
  const uint8_t kuiL0  = pRef[-1];
  const uint8_t kuiL1  = pRef[kiStride-1];
  const uint8_t kuiL2  = pRef[kiStride2-1];
  const uint8_t kuiL3  = pRef[kiStride3-1];
  const uint8_t kuiT0  = pRef[-kiStride];
  const uint8_t kuiT1  = pRef[1-kiStride];
  const uint8_t kuiT2  = pRef[2-kiStride];
  const uint8_t kuiHD0 = (1 + kuiLT + kuiL0)>>1;
  const uint8_t kuiHD1 = (2 + kuiL0 + (kuiLT<<1) + kuiT0)>>2;
  const uint8_t kuiHD2 = (2 + kuiLT + (kuiT0<<1) + kuiT1)>>2;
  const uint8_t kuiHD3 = (2 + kuiT0 + (kuiT1<<1) + kuiT2)>>2;
  const uint8_t kuiHD4 = (1 + kuiL0 + kuiL1)>>1;
  const uint8_t kuiHD5 = (2 + kuiLT + (kuiL0<<1) + kuiL1)>>2;
  const uint8_t kuiHD6 = (1 + kuiL1 + kuiL2)>>1;
  const uint8_t kuiHD7 = (2 + kuiL0 + (kuiL1<<1) + kuiL2)>>2;
  const uint8_t kuiHD8 = (1 + kuiL2 + kuiL3)>>1;
  const uint8_t kuiHD9 = (2 + kuiL1 + (kuiL2<<1) + kuiL3)>>2;
  ENFORCE_STACK_ALIGN_1D(uint8_t, uiV, 16, 16)	// TobeCont'd about assign opt as follows
  uiV[0] = uiV[6] = kuiHD0;
  uiV[1] = uiV[7] = kuiHD1;
  uiV[2] = kuiHD2;
  uiV[3] = kuiHD3;
  uiV[4] = uiV[10] = kuiHD4;
  uiV[5] = uiV[11] = kuiHD5;
  uiV[8] = uiV[14] = kuiHD6;
  uiV[9] = uiV[15] = kuiHD7;
  uiV[12] = kuiHD8;
  uiV[13] = kuiHD9;

  const uint32_t kuiCpuFlag = 0;
  WelsInitFillingPredFuncs(kuiCpuFlag);
  WelsI4x4LumaPredHD_c(pPred, pRef, kiStride);

  for (int i=0; i<4; i++)
    EXPECT_EQ(LD32(&pPred[4*i]),LD32(&uiV[4*i]));

  pRef -= kiStride + 1;

  delete []pRef;
  delete []pPred;
}

TEST(GetIntraPredictorTest, TestGetIChormaPredV) {
  uint8_t *pPred = new uint8_t[64];
  uint8_t *pRef  = new uint8_t[64];
  for (int i=0; i<64; i++)
    pRef[i] = rand() % 256 + 1;

  const int32_t kiStride = 0;
  WelsIChormaPredV_c(pPred, pRef, kiStride);

  for (int i=0; i<8; i++)
    EXPECT_EQ(LD32(&pPred[8*i]),LD32(&pRef[-kiStride]));

  delete []pRef;
  delete []pPred;
}

TEST(GetIntraPredictorTest, TestGetI16x16LumaPredPlane) {
  const int32_t kiStride = rand()%16+16;

  int32_t i, j;

  uint8_t *pPred = new uint8_t[16*kiStride];
  uint8_t *pRef  = new uint8_t[16*kiStride+1];
  for (i=0; i<16*kiStride+1; i++)
    pRef[i]=rand()%256+1;

  pRef += kiStride + 1;

  int32_t iA=0, iB=0, iC=0, iH=0, iV=0;
  uint8_t *pTop = &pRef[-kiStride];
  uint8_t *pLeft = &pRef[-1];
  int32_t iPredStride = 16;

  for (i=0; i<8; i++) {
    iH += (i + 1) * (pTop[8 + i] - pTop[6 - i]);
    iV += (i + 1) * (pLeft[(8 + i)*kiStride] - pLeft[(6 - i)*kiStride]);
  }

  iA = (pLeft[15*kiStride] + pTop[15]) << 4;
  iB = (5 * iH + 32) >> 6;
  iC = (5 * iV + 32) >> 6;

  WelsI16x16LumaPredPlane_c(pPred, pRef, kiStride);
  for (i=0; i<16; i++) {
    for (j=0; j<16; j++) {
      EXPECT_EQ(pPred[j],(uint8_t)WelsClip1((iA + iB * (j - 7) + iC * (i - 7) + 16) >> 5));
    }
    pPred += iPredStride;
  }

  pRef -= kiStride + 1;
  delete []pRef;
}

TEST(GetIntraPredictorTest, TestGetI16x16LumaPredDc) {
  const int32_t kiStride = rand()%16+16;

  int i;

  uint8_t *pPred = new uint8_t[256];
  uint8_t *pRef  = new uint8_t[16*kiStride];
  for (i=0; i<16*kiStride; i++)
    pRef[i] = rand() % 256 + 1;

  pRef += kiStride;

  int32_t iTmp = (kiStride << 4) - kiStride;
  int32_t iSum = 0;
  i = 15;
  uint8_t uiMean = 0;

  do {
    iSum += pRef[-1+iTmp] + pRef[-kiStride+i];
    iTmp -= kiStride;
  } while(i-- > 0);
  uiMean = ( 16 + iSum ) >> 5;

  WelsI16x16LumaPredDc_c(pPred, pRef, kiStride);
  for (i=0; i<256; i++)
    EXPECT_EQ(pPred[i],uiMean);

  pRef -= kiStride;

  delete []pRef;
  delete []pPred;
}

TEST(GetIntraPredictorTest, TestGetI16x16LumaPredDcTop) {
  const int32_t kiStride = rand()%16+16;

  int i;

  uint8_t *pPred = new uint8_t[256];
  uint8_t *pRef  = new uint8_t[16*kiStride];
  for (i=0; i<16*kiStride; i++)
    pRef[i] = rand() % 256 + 1;

  pRef += kiStride;

  int32_t iSum = 0;
  i = 15;
  uint8_t uiMean = 0;
  do {
    iSum += pRef[-kiStride+i];
  } while(i-- > 0);
  uiMean = ( 8 + iSum ) >> 4;

  WelsI16x16LumaPredDcTop_c(pPred, pRef, kiStride);
  for (i=0; i<256; i++)
    EXPECT_EQ(pPred[i],uiMean);

  pRef -= kiStride;

  delete []pRef;
  delete []pPred;
}