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Merge "Optimize vp9_short_idct4x4llm function" into experimental

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Yunqing Wang 2013-03-04 14:13:31 -08:00 committed by Gerrit Code Review
commit 37932d9168
6 changed files with 128 additions and 26 deletions
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7
vp9/common/vp9_idct.h
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@ -84,11 +84,4 @@ typedef struct {
transform_1d cols, rows; // vertical and horizontal
} transform_2d;
#define ROUND_POWER_OF_TWO(value, n) (((value) + (1 << ((n) - 1))) >> (n))
/* If we don't want to use ROUND_POWER_OF_TWO macro
static INLINE int16_t round_power_of_two(int16_t value, int n) {
return (value + (1 << (n - 1))) >> n;
}*/
#endif // VP9_COMMON_VP9_IDCT_H_

2
vp9/common/vp9_rtcd_defs.sh
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@ -254,7 +254,7 @@ prototype void vp9_short_idct4x4llm_1 "int16_t *input, int16_t *output, int pitc
specialize vp9_short_idct4x4llm_1
prototype void vp9_short_idct4x4llm "int16_t *input, int16_t *output, int pitch"
specialize vp9_short_idct4x4llm
specialize vp9_short_idct4x4llm sse2
prototype void vp9_short_idct8x8 "int16_t *input, int16_t *output, int pitch"
specialize vp9_short_idct8x8

13
vp9/common/x86/vp9_idct_x86.h
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@ -20,23 +20,10 @@
*/
#if HAVE_MMX
extern prototype_idct(vp9_short_idct4x4llm_1_mmx);
extern prototype_idct(vp9_short_idct4x4llm_mmx);
extern prototype_idct_scalar_add(vp9_dc_only_idct_add_mmx);
extern prototype_second_order(vp9_short_inv_walsh4x4_mmx);
extern prototype_second_order(vp9_short_inv_walsh4x4_1_mmx);
#if !CONFIG_RUNTIME_CPU_DETECT
#undef vp9_idct_idct1
#define vp9_idct_idct1 vp9_short_idct4x4llm_1_mmx
#undef vp9_idct_idct16
#define vp9_idct_idct16 vp9_short_idct4x4llm_mmx
#undef vp9_idct_idct1_scalar_add
#define vp9_idct_idct1_scalar_add vp9_dc_only_idct_add_mmx
#undef vp9_idct_iwalsh16
#define vp9_idct_iwalsh16 vp9_short_inv_walsh4x4_mmx

125
vp9/common/x86/vp9_idctllm_x86.c
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@ -73,4 +73,129 @@ void vp9_dc_only_idct_add_sse2(int input_dc, uint8_t *pred_ptr,
p1 = _mm_srli_si128(p1, 4);
*(int *)dst_ptr = _mm_cvtsi128_si32(p1);
}
void vp9_short_idct4x4llm_sse2(int16_t *input, int16_t *output, int pitch) {
const __m128i zero = _mm_setzero_si128();
const __m128i eight = _mm_set1_epi16(8);
const __m128i cst = _mm_setr_epi16((short)cospi_16_64, (short)cospi_16_64,
(short)cospi_16_64, (short)-cospi_16_64,
(short)cospi_24_64, (short)-cospi_8_64,
(short)cospi_8_64, (short)cospi_24_64);
const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING);
const int half_pitch = pitch >> 1;
__m128i input0, input1, input2, input3;
// Rows
input0 = _mm_loadl_epi64((__m128i *)input);
input1 = _mm_loadl_epi64((__m128i *)(input + 4));
input2 = _mm_loadl_epi64((__m128i *)(input + 8));
input3 = _mm_loadl_epi64((__m128i *)(input + 12));
// Construct i3, i1, i3, i1, i2, i0, i2, i0
input0 = _mm_shufflelo_epi16(input0, 0xd8);
input1 = _mm_shufflelo_epi16(input1, 0xd8);
input2 = _mm_shufflelo_epi16(input2, 0xd8);
input3 = _mm_shufflelo_epi16(input3, 0xd8);
input0 = _mm_unpacklo_epi32(input0, input0);
input1 = _mm_unpacklo_epi32(input1, input1);
input2 = _mm_unpacklo_epi32(input2, input2);
input3 = _mm_unpacklo_epi32(input3, input3);
// Stage 1
input0 = _mm_madd_epi16(input0, cst);
input1 = _mm_madd_epi16(input1, cst);
input2 = _mm_madd_epi16(input2, cst);
input3 = _mm_madd_epi16(input3, cst);
input0 = _mm_add_epi32(input0, rounding);
input1 = _mm_add_epi32(input1, rounding);
input2 = _mm_add_epi32(input2, rounding);
input3 = _mm_add_epi32(input3, rounding);
input0 = _mm_srai_epi32(input0, DCT_CONST_BITS);
input1 = _mm_srai_epi32(input1, DCT_CONST_BITS);
input2 = _mm_srai_epi32(input2, DCT_CONST_BITS);
input3 = _mm_srai_epi32(input3, DCT_CONST_BITS);
// Stage 2
input0 = _mm_packs_epi32(input0, zero);
input1 = _mm_packs_epi32(input1, zero);
input2 = _mm_packs_epi32(input2, zero);
input3 = _mm_packs_epi32(input3, zero);
// Transpose
input1 = _mm_unpacklo_epi16(input0, input1);
input3 = _mm_unpacklo_epi16(input2, input3);
input0 = _mm_unpacklo_epi32(input1, input3);
input1 = _mm_unpackhi_epi32(input1, input3);
// Switch column2, column 3, and then, we got:
// input2: column1, column 0; input3: column2, column 3.
input1 = _mm_shuffle_epi32(input1, 0x4e);
input2 = _mm_add_epi16(input0, input1);
input3 = _mm_sub_epi16(input0, input1);
// Columns
// Construct i3, i1, i3, i1, i2, i0, i2, i0
input0 = _mm_shufflelo_epi16(input2, 0xd8);
input1 = _mm_shufflehi_epi16(input2, 0xd8);
input2 = _mm_shufflehi_epi16(input3, 0xd8);
input3 = _mm_shufflelo_epi16(input3, 0xd8);
input0 = _mm_unpacklo_epi32(input0, input0);
input1 = _mm_unpackhi_epi32(input1, input1);
input2 = _mm_unpackhi_epi32(input2, input2);
input3 = _mm_unpacklo_epi32(input3, input3);
// Stage 1
input0 = _mm_madd_epi16(input0, cst);
input1 = _mm_madd_epi16(input1, cst);
input2 = _mm_madd_epi16(input2, cst);
input3 = _mm_madd_epi16(input3, cst);
input0 = _mm_add_epi32(input0, rounding);
input1 = _mm_add_epi32(input1, rounding);
input2 = _mm_add_epi32(input2, rounding);
input3 = _mm_add_epi32(input3, rounding);
input0 = _mm_srai_epi32(input0, DCT_CONST_BITS);
input1 = _mm_srai_epi32(input1, DCT_CONST_BITS);
input2 = _mm_srai_epi32(input2, DCT_CONST_BITS);
input3 = _mm_srai_epi32(input3, DCT_CONST_BITS);
// Stage 2
input0 = _mm_packs_epi32(input0, zero);
input1 = _mm_packs_epi32(input1, zero);
input2 = _mm_packs_epi32(input2, zero);
input3 = _mm_packs_epi32(input3, zero);
// Transpose
input1 = _mm_unpacklo_epi16(input0, input1);
input3 = _mm_unpacklo_epi16(input2, input3);
input0 = _mm_unpacklo_epi32(input1, input3);
input1 = _mm_unpackhi_epi32(input1, input3);
// Switch column2, column 3, and then, we got:
// input2: column1, column 0; input3: column2, column 3.
input1 = _mm_shuffle_epi32(input1, 0x4e);
input2 = _mm_add_epi16(input0, input1);
input3 = _mm_sub_epi16(input0, input1);
// Final round and shift
input2 = _mm_add_epi16(input2, eight);
input3 = _mm_add_epi16(input3, eight);
input2 = _mm_srai_epi16(input2, 4);
input3 = _mm_srai_epi16(input3, 4);
// Store results
_mm_storel_epi64((__m128i *)output, input2);
input2 = _mm_srli_si128(input2, 8);
_mm_storel_epi64((__m128i *)(output + half_pitch), input2);
_mm_storel_epi64((__m128i *)(output + 3 * half_pitch), input3);
input3 = _mm_srli_si128(input3, 8);
_mm_storel_epi64((__m128i *)(output + 2 * half_pitch), input3);
}
#endif

4
vp9/decoder/vp9_dequantize.c
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@ -90,7 +90,7 @@ void vp9_dequant_idct_add_c(int16_t *input, const int16_t *dq, uint8_t *pred,
input[i] *= dq[i];
// the idct halves ( >> 1) the pitch
vp9_short_idct4x4llm_c(input, output, 4 << 1);
vp9_short_idct4x4llm(input, output, 4 << 1);
vpx_memset(input, 0, 32);
@ -112,7 +112,7 @@ void vp9_dequant_dc_idct_add_c(int16_t *input, const int16_t *dq, uint8_t *pred,
input[i] *= dq[i];
// the idct halves ( >> 1) the pitch
vp9_short_idct4x4llm_c(input, output, 4 << 1);
vp9_short_idct4x4llm(input, output, 4 << 1);
vpx_memset(input, 0, 32);
add_residual(output, pred, pitch, dest, stride, 4, 4);
}

3
vp9/decoder/x86/vp9_idct_mmx.h
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@ -16,9 +16,6 @@ void vp9_dequant_dc_idct_add_mmx(short *input, const short *dq,
unsigned char *pred, unsigned char *dest,
int pitch, int stride, int Dc);
void vp9_dc_only_idct_add_mmx(short input_dc, const unsigned char *pred_ptr,
unsigned char *dst_ptr, int pitch, int stride);
void vp9_dequant_idct_add_mmx(short *input, const short *dq, unsigned char *pred,
unsigned char *dest, int pitch, int stride);