| /* |
| * Copyright (c) 2011 The LibYuv 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. |
| */ |
| |
| #include "libyuv/scale.h" |
| |
| #include <assert.h> |
| #include <string.h> |
| |
| #include "libyuv/cpu_id.h" |
| #include "libyuv/planar_functions.h" // For CopyPlane |
| #include "row.h" |
| |
| #ifdef __cplusplus |
| namespace libyuv { |
| extern "C" { |
| #endif |
| |
| #if defined(_MSC_VER) |
| #define ALIGN16(var) __declspec(align(16)) var |
| #else |
| #define ALIGN16(var) var __attribute__((aligned(16))) |
| #endif |
| |
| // Note: A Neon reference manual |
| // http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0204j/CJAJIIGG.html |
| // Note: Some SSE2 reference manuals |
| // cpuvol1.pdf agner_instruction_tables.pdf 253666.pdf 253667.pdf |
| |
| // Set the following flag to true to revert to only |
| // using the reference implementation ScalePlaneBox(), and |
| // NOT the optimized versions. Useful for debugging and |
| // when comparing the quality of the resulting YUV planes |
| // as produced by the optimized and non-optimized versions. |
| |
| static bool use_reference_impl_ = false; |
| |
| void SetUseReferenceImpl(bool use) { |
| use_reference_impl_ = use; |
| } |
| |
| // ScaleRowDown2Int also used by planar functions |
| |
| /** |
| * NEON downscalers with interpolation. |
| * |
| * Provided by Fritz Koenig |
| * |
| */ |
| |
| #if defined(__ARM_NEON__) && !defined(YUV_DISABLE_ASM) |
| #define HAS_SCALEROWDOWN2_NEON |
| void ScaleRowDown2_NEON(const uint8* src_ptr, int /* src_stride */, |
| uint8* dst, int dst_width) { |
| asm volatile ( |
| "1: \n" |
| "vld2.u8 {q0,q1}, [%0]! \n" // load even pixels into q0, odd into q1 |
| "vst1.u8 {q0}, [%1]! \n" // store even pixels |
| "subs %2, %2, #16 \n" // 16 processed per loop |
| "bhi 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst), // %1 |
| "+r"(dst_width) // %2 |
| : |
| : "q0", "q1" // Clobber List |
| ); |
| } |
| |
| void ScaleRowDown2Int_NEON(const uint8* src_ptr, int src_stride, |
| uint8* dst, int dst_width) { |
| asm volatile ( |
| "add %1, %0 \n" // change the stride to row 2 pointer |
| "1: \n" |
| "vld1.u8 {q0,q1}, [%0]! \n" // load row 1 and post increment |
| "vld1.u8 {q2,q3}, [%1]! \n" // load row 2 and post increment |
| "vpaddl.u8 q0, q0 \n" // row 1 add adjacent |
| "vpaddl.u8 q1, q1 \n" |
| "vpadal.u8 q0, q2 \n" // row 2 add adjacent, add row 1 to row 2 |
| "vpadal.u8 q1, q3 \n" |
| "vrshrn.u16 d0, q0, #2 \n" // downshift, round and pack |
| "vrshrn.u16 d1, q1, #2 \n" |
| "vst1.u8 {q0}, [%2]! \n" |
| "subs %3, %3, #16 \n" // 16 processed per loop |
| "bhi 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(src_stride), // %1 |
| "+r"(dst), // %2 |
| "+r"(dst_width) // %3 |
| : |
| : "q0", "q1", "q2", "q3" // Clobber List |
| ); |
| } |
| |
| #define HAS_SCALEROWDOWN4_NEON |
| static void ScaleRowDown4_NEON(const uint8* src_ptr, int /* src_stride */, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "1: \n" |
| "vld2.u8 {d0, d1}, [%0]! \n" |
| "vtrn.u8 d1, d0 \n" |
| "vshrn.u16 d0, q0, #8 \n" |
| "vst1.u32 {d0[1]}, [%1]! \n" |
| |
| "subs %2, #4 \n" |
| "bhi 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : |
| : "q0", "q1", "memory", "cc" |
| ); |
| } |
| |
| static void ScaleRowDown4Int_NEON(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "add r4, %0, %3 \n" |
| "add r5, r4, %3 \n" |
| "add %3, r5, %3 \n" |
| "1: \n" |
| "vld1.u8 {q0}, [%0]! \n" // load up 16x4 block of input data |
| "vld1.u8 {q1}, [r4]! \n" |
| "vld1.u8 {q2}, [r5]! \n" |
| "vld1.u8 {q3}, [%3]! \n" |
| |
| "vpaddl.u8 q0, q0 \n" |
| "vpadal.u8 q0, q1 \n" |
| "vpadal.u8 q0, q2 \n" |
| "vpadal.u8 q0, q3 \n" |
| |
| "vpaddl.u16 q0, q0 \n" |
| |
| "vrshrn.u32 d0, q0, #4 \n" // divide by 16 w/rounding |
| |
| "vmovn.u16 d0, q0 \n" |
| "vst1.u32 {d0[0]}, [%1]! \n" |
| |
| "subs %2, #4 \n" |
| "bhi 1b \n" |
| |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : "r"(src_stride) // %3 |
| : "r4", "r5", "q0", "q1", "q2", "q3", "memory", "cc" |
| ); |
| } |
| |
| #define HAS_SCALEROWDOWN34_NEON |
| // Down scale from 4 to 3 pixels. Use the neon multilane read/write |
| // to load up the every 4th pixel into a 4 different registers. |
| // Point samples 32 pixels to 24 pixels. |
| static void ScaleRowDown34_NEON(const uint8* src_ptr, int /* src_stride */, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "1: \n" |
| "vld4.u8 {d0, d1, d2, d3}, [%0]! \n" // src line 0 |
| "vmov d2, d3 \n" // order needs to be d0, d1, d2 |
| "vst3.u8 {d0, d1, d2}, [%1]! \n" |
| "subs %2, #24 \n" |
| "bhi 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : |
| : "d0", "d1", "d2", "d3", "memory", "cc" |
| ); |
| } |
| |
| static void ScaleRowDown34_0_Int_NEON(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "vmov.u8 d24, #3 \n" |
| "add %3, %0 \n" |
| "1: \n" |
| "vld4.u8 {d0, d1, d2, d3}, [%0]! \n" // src line 0 |
| "vld4.u8 {d4, d5, d6, d7}, [%3]! \n" // src line 1 |
| |
| // filter src line 0 with src line 1 |
| // expand chars to shorts to allow for room |
| // when adding lines together |
| "vmovl.u8 q8, d4 \n" |
| "vmovl.u8 q9, d5 \n" |
| "vmovl.u8 q10, d6 \n" |
| "vmovl.u8 q11, d7 \n" |
| |
| // 3 * line_0 + line_1 |
| "vmlal.u8 q8, d0, d24 \n" |
| "vmlal.u8 q9, d1, d24 \n" |
| "vmlal.u8 q10, d2, d24 \n" |
| "vmlal.u8 q11, d3, d24 \n" |
| |
| // (3 * line_0 + line_1) >> 2 |
| "vqrshrn.u16 d0, q8, #2 \n" |
| "vqrshrn.u16 d1, q9, #2 \n" |
| "vqrshrn.u16 d2, q10, #2 \n" |
| "vqrshrn.u16 d3, q11, #2 \n" |
| |
| // a0 = (src[0] * 3 + s[1] * 1) >> 2 |
| "vmovl.u8 q8, d1 \n" |
| "vmlal.u8 q8, d0, d24 \n" |
| "vqrshrn.u16 d0, q8, #2 \n" |
| |
| // a1 = (src[1] * 1 + s[2] * 1) >> 1 |
| "vrhadd.u8 d1, d1, d2 \n" |
| |
| // a2 = (src[2] * 1 + s[3] * 3) >> 2 |
| "vmovl.u8 q8, d2 \n" |
| "vmlal.u8 q8, d3, d24 \n" |
| "vqrshrn.u16 d2, q8, #2 \n" |
| |
| "vst3.u8 {d0, d1, d2}, [%1]! \n" |
| |
| "subs %2, #24 \n" |
| "bhi 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width), // %2 |
| "+r"(src_stride) // %3 |
| : |
| : "q0", "q1", "q2", "q3", "q8", "q9", "q10", "q11", "d24", "memory", "cc" |
| ); |
| } |
| |
| static void ScaleRowDown34_1_Int_NEON(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "vmov.u8 d24, #3 \n" |
| "add %3, %0 \n" |
| "1: \n" |
| "vld4.u8 {d0, d1, d2, d3}, [%0]! \n" // src line 0 |
| "vld4.u8 {d4, d5, d6, d7}, [%3]! \n" // src line 1 |
| |
| // average src line 0 with src line 1 |
| "vrhadd.u8 q0, q0, q2 \n" |
| "vrhadd.u8 q1, q1, q3 \n" |
| |
| // a0 = (src[0] * 3 + s[1] * 1) >> 2 |
| "vmovl.u8 q3, d1 \n" |
| "vmlal.u8 q3, d0, d24 \n" |
| "vqrshrn.u16 d0, q3, #2 \n" |
| |
| // a1 = (src[1] * 1 + s[2] * 1) >> 1 |
| "vrhadd.u8 d1, d1, d2 \n" |
| |
| // a2 = (src[2] * 1 + s[3] * 3) >> 2 |
| "vmovl.u8 q3, d2 \n" |
| "vmlal.u8 q3, d3, d24 \n" |
| "vqrshrn.u16 d2, q3, #2 \n" |
| |
| "vst3.u8 {d0, d1, d2}, [%1]! \n" |
| |
| "subs %2, #24 \n" |
| "bhi 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width), // %2 |
| "+r"(src_stride) // %3 |
| : |
| : "r4", "q0", "q1", "q2", "q3", "d24", "memory", "cc" |
| ); |
| } |
| |
| #define HAS_SCALEROWDOWN38_NEON |
| const uint8 shuf38[16] __attribute__ ((aligned(16))) = |
| { 0, 3, 6, 8, 11, 14, 16, 19, 22, 24, 27, 30, 0, 0, 0, 0 }; |
| const uint8 shuf38_2[16] __attribute__ ((aligned(16))) = |
| { 0, 8, 16, 2, 10, 17, 4, 12, 18, 6, 14, 19, 0, 0, 0, 0 }; |
| const unsigned short mult38_div6[8] __attribute__ ((aligned(16))) = |
| { 65536 / 12, 65536 / 12, 65536 / 12, 65536 / 12, |
| 65536 / 12, 65536 / 12, 65536 / 12, 65536 / 12 }; |
| const unsigned short mult38_div9[8] __attribute__ ((aligned(16))) = |
| { 65536 / 18, 65536 / 18, 65536 / 18, 65536 / 18, |
| 65536 / 18, 65536 / 18, 65536 / 18, 65536 / 18 }; |
| |
| // 32 -> 12 |
| static void ScaleRowDown38_NEON(const uint8* src_ptr, int, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "vld1.u8 {q3}, [%3] \n" |
| "1: \n" |
| "vld1.u8 {d0, d1, d2, d3}, [%0]! \n" |
| "vtbl.u8 d4, {d0, d1, d2, d3}, d6 \n" |
| "vtbl.u8 d5, {d0, d1, d2, d3}, d7 \n" |
| "vst1.u8 {d4}, [%1]! \n" |
| "vst1.u32 {d5[0]}, [%1]! \n" |
| "subs %2, #12 \n" |
| "bhi 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : "r"(shuf38) // %3 |
| : "d0", "d1", "d2", "d3", "d4", "d5", "memory", "cc" |
| ); |
| } |
| |
| // 32x3 -> 12x1 |
| static void ScaleRowDown38_3_Int_NEON(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "vld1.u16 {q13}, [%4] \n" |
| "vld1.u8 {q14}, [%5] \n" |
| "vld1.u8 {q15}, [%6] \n" |
| "add r4, %0, %3, lsl #1 \n" |
| "add %3, %0 \n" |
| "1: \n" |
| |
| // d0 = 00 40 01 41 02 42 03 43 |
| // d1 = 10 50 11 51 12 52 13 53 |
| // d2 = 20 60 21 61 22 62 23 63 |
| // d3 = 30 70 31 71 32 72 33 73 |
| "vld4.u8 {d0, d1, d2, d3}, [%0]! \n" |
| "vld4.u8 {d4, d5, d6, d7}, [%3]! \n" |
| "vld4.u8 {d16, d17, d18, d19}, [r4]! \n" |
| |
| // Shuffle the input data around to get align the data |
| // so adjacent data can be added. 0,1 - 2,3 - 4,5 - 6,7 |
| // d0 = 00 10 01 11 02 12 03 13 |
| // d1 = 40 50 41 51 42 52 43 53 |
| "vtrn.u8 d0, d1 \n" |
| "vtrn.u8 d4, d5 \n" |
| "vtrn.u8 d16, d17 \n" |
| |
| // d2 = 20 30 21 31 22 32 23 33 |
| // d3 = 60 70 61 71 62 72 63 73 |
| "vtrn.u8 d2, d3 \n" |
| "vtrn.u8 d6, d7 \n" |
| "vtrn.u8 d18, d19 \n" |
| |
| // d0 = 00+10 01+11 02+12 03+13 |
| // d2 = 40+50 41+51 42+52 43+53 |
| "vpaddl.u8 q0, q0 \n" |
| "vpaddl.u8 q2, q2 \n" |
| "vpaddl.u8 q8, q8 \n" |
| |
| // d3 = 60+70 61+71 62+72 63+73 |
| "vpaddl.u8 d3, d3 \n" |
| "vpaddl.u8 d7, d7 \n" |
| "vpaddl.u8 d19, d19 \n" |
| |
| // combine source lines |
| "vadd.u16 q0, q2 \n" |
| "vadd.u16 q0, q8 \n" |
| "vadd.u16 d4, d3, d7 \n" |
| "vadd.u16 d4, d19 \n" |
| |
| // dst_ptr[3] = (s[6 + st * 0] + s[7 + st * 0] |
| // + s[6 + st * 1] + s[7 + st * 1] |
| // + s[6 + st * 2] + s[7 + st * 2]) / 6 |
| "vqrdmulh.s16 q2, q13 \n" |
| "vmovn.u16 d4, q2 \n" |
| |
| // Shuffle 2,3 reg around so that 2 can be added to the |
| // 0,1 reg and 3 can be added to the 4,5 reg. This |
| // requires expanding from u8 to u16 as the 0,1 and 4,5 |
| // registers are already expanded. Then do transposes |
| // to get aligned. |
| // q2 = xx 20 xx 30 xx 21 xx 31 xx 22 xx 32 xx 23 xx 33 |
| "vmovl.u8 q1, d2 \n" |
| "vmovl.u8 q3, d6 \n" |
| "vmovl.u8 q9, d18 \n" |
| |
| // combine source lines |
| "vadd.u16 q1, q3 \n" |
| "vadd.u16 q1, q9 \n" |
| |
| // d4 = xx 20 xx 30 xx 22 xx 32 |
| // d5 = xx 21 xx 31 xx 23 xx 33 |
| "vtrn.u32 d2, d3 \n" |
| |
| // d4 = xx 20 xx 21 xx 22 xx 23 |
| // d5 = xx 30 xx 31 xx 32 xx 33 |
| "vtrn.u16 d2, d3 \n" |
| |
| // 0+1+2, 3+4+5 |
| "vadd.u16 q0, q1 \n" |
| |
| // Need to divide, but can't downshift as the the value |
| // isn't a power of 2. So multiply by 65536 / n |
| // and take the upper 16 bits. |
| "vqrdmulh.s16 q0, q15 \n" |
| |
| // Align for table lookup, vtbl requires registers to |
| // be adjacent |
| "vmov.u8 d2, d4 \n" |
| |
| "vtbl.u8 d3, {d0, d1, d2}, d28 \n" |
| "vtbl.u8 d4, {d0, d1, d2}, d29 \n" |
| |
| "vst1.u8 {d3}, [%1]! \n" |
| "vst1.u32 {d4[0]}, [%1]! \n" |
| "subs %2, #12 \n" |
| "bhi 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width), // %2 |
| "+r"(src_stride) // %3 |
| : "r"(mult38_div6), // %4 |
| "r"(shuf38_2), // %5 |
| "r"(mult38_div9) // %6 |
| : "r4", "q0", "q1", "q2", "q3", "q8", "q9", |
| "q13", "q14", "q15", "memory", "cc" |
| ); |
| } |
| |
| // 32x2 -> 12x1 |
| static void ScaleRowDown38_2_Int_NEON(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "vld1.u16 {q13}, [%4] \n" |
| "vld1.u8 {q14}, [%5] \n" |
| "add %3, %0 \n" |
| "1: \n" |
| |
| // d0 = 00 40 01 41 02 42 03 43 |
| // d1 = 10 50 11 51 12 52 13 53 |
| // d2 = 20 60 21 61 22 62 23 63 |
| // d3 = 30 70 31 71 32 72 33 73 |
| "vld4.u8 {d0, d1, d2, d3}, [%0]! \n" |
| "vld4.u8 {d4, d5, d6, d7}, [%3]! \n" |
| |
| // Shuffle the input data around to get align the data |
| // so adjacent data can be added. 0,1 - 2,3 - 4,5 - 6,7 |
| // d0 = 00 10 01 11 02 12 03 13 |
| // d1 = 40 50 41 51 42 52 43 53 |
| "vtrn.u8 d0, d1 \n" |
| "vtrn.u8 d4, d5 \n" |
| |
| // d2 = 20 30 21 31 22 32 23 33 |
| // d3 = 60 70 61 71 62 72 63 73 |
| "vtrn.u8 d2, d3 \n" |
| "vtrn.u8 d6, d7 \n" |
| |
| // d0 = 00+10 01+11 02+12 03+13 |
| // d2 = 40+50 41+51 42+52 43+53 |
| "vpaddl.u8 q0, q0 \n" |
| "vpaddl.u8 q2, q2 \n" |
| |
| // d3 = 60+70 61+71 62+72 63+73 |
| "vpaddl.u8 d3, d3 \n" |
| "vpaddl.u8 d7, d7 \n" |
| |
| // combine source lines |
| "vadd.u16 q0, q2 \n" |
| "vadd.u16 d4, d3, d7 \n" |
| |
| // dst_ptr[3] = (s[6] + s[7] + s[6+st] + s[7+st]) / 4 |
| "vqrshrn.u16 d4, q2, #2 \n" |
| |
| // Shuffle 2,3 reg around so that 2 can be added to the |
| // 0,1 reg and 3 can be added to the 4,5 reg. This |
| // requires expanding from u8 to u16 as the 0,1 and 4,5 |
| // registers are already expanded. Then do transposes |
| // to get aligned. |
| // q2 = xx 20 xx 30 xx 21 xx 31 xx 22 xx 32 xx 23 xx 33 |
| "vmovl.u8 q1, d2 \n" |
| "vmovl.u8 q3, d6 \n" |
| |
| // combine source lines |
| "vadd.u16 q1, q3 \n" |
| |
| // d4 = xx 20 xx 30 xx 22 xx 32 |
| // d5 = xx 21 xx 31 xx 23 xx 33 |
| "vtrn.u32 d2, d3 \n" |
| |
| // d4 = xx 20 xx 21 xx 22 xx 23 |
| // d5 = xx 30 xx 31 xx 32 xx 33 |
| "vtrn.u16 d2, d3 \n" |
| |
| // 0+1+2, 3+4+5 |
| "vadd.u16 q0, q1 \n" |
| |
| // Need to divide, but can't downshift as the the value |
| // isn't a power of 2. So multiply by 65536 / n |
| // and take the upper 16 bits. |
| "vqrdmulh.s16 q0, q13 \n" |
| |
| // Align for table lookup, vtbl requires registers to |
| // be adjacent |
| "vmov.u8 d2, d4 \n" |
| |
| "vtbl.u8 d3, {d0, d1, d2}, d28 \n" |
| "vtbl.u8 d4, {d0, d1, d2}, d29 \n" |
| |
| "vst1.u8 {d3}, [%1]! \n" |
| "vst1.u32 {d4[0]}, [%1]! \n" |
| "subs %2, #12 \n" |
| "bhi 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width), // %2 |
| "+r"(src_stride) // %3 |
| : "r"(mult38_div6), // %4 |
| "r"(shuf38_2) // %5 |
| : "q0", "q1", "q2", "q3", "q13", "q14", "memory", "cc" |
| ); |
| } |
| |
| /** |
| * SSE2 downscalers with interpolation. |
| * |
| * Provided by Frank Barchard (fbarchard@google.com) |
| * |
| */ |
| |
| // Constants for SSE2 code |
| #elif (defined(_M_IX86) || defined(__i386__) || defined(__x86_64__)) && \ |
| !defined(YUV_DISABLE_ASM) |
| #if defined(_MSC_VER) |
| #define TALIGN16(t, var) __declspec(align(16)) t _ ## var |
| #elif (defined(__APPLE__) || defined(__MINGW32__) || defined(__CYGWIN__)) && \ |
| defined(__i386__) |
| #define TALIGN16(t, var) t var __attribute__((aligned(16))) |
| #else |
| #define TALIGN16(t, var) t _ ## var __attribute__((aligned(16))) |
| #endif |
| |
| #if defined(__APPLE__) && defined(__i386__) |
| #define DECLARE_FUNCTION(name) \ |
| ".text \n" \ |
| ".private_extern _" #name " \n" \ |
| ".align 4,0x90 \n" \ |
| "_" #name ": \n" |
| #elif (defined(__MINGW32__) || defined(__CYGWIN__)) && defined(__i386__) |
| #define DECLARE_FUNCTION(name) \ |
| ".text \n" \ |
| ".align 4,0x90 \n" \ |
| "_" #name ": \n" |
| #else |
| #define DECLARE_FUNCTION(name) \ |
| ".text \n" \ |
| ".align 4,0x90 \n" \ |
| #name ": \n" |
| #endif |
| |
| // Offsets for source bytes 0 to 9 |
| extern "C" TALIGN16(const uint8, shuf0[16]) = |
| { 0, 1, 3, 4, 5, 7, 8, 9, 128, 128, 128, 128, 128, 128, 128, 128 }; |
| |
| // Offsets for source bytes 11 to 20 with 8 subtracted = 3 to 12. |
| extern "C" TALIGN16(const uint8, shuf1[16]) = |
| { 3, 4, 5, 7, 8, 9, 11, 12, 128, 128, 128, 128, 128, 128, 128, 128 }; |
| |
| // Offsets for source bytes 21 to 31 with 16 subtracted = 5 to 31. |
| extern "C" TALIGN16(const uint8, shuf2[16]) = |
| { 5, 7, 8, 9, 11, 12, 13, 15, 128, 128, 128, 128, 128, 128, 128, 128 }; |
| |
| // Offsets for source bytes 0 to 10 |
| extern "C" TALIGN16(const uint8, shuf01[16]) = |
| { 0, 1, 1, 2, 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10 }; |
| |
| // Offsets for source bytes 10 to 21 with 8 subtracted = 3 to 13. |
| extern "C" TALIGN16(const uint8, shuf11[16]) = |
| { 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 12, 13 }; |
| |
| // Offsets for source bytes 21 to 31 with 16 subtracted = 5 to 31. |
| extern "C" TALIGN16(const uint8, shuf21[16]) = |
| { 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 12, 13, 13, 14, 14, 15 }; |
| |
| // Coefficients for source bytes 0 to 10 |
| extern "C" TALIGN16(const uint8, madd01[16]) = |
| { 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2 }; |
| |
| // Coefficients for source bytes 10 to 21 |
| extern "C" TALIGN16(const uint8, madd11[16]) = |
| { 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1 }; |
| |
| // Coefficients for source bytes 21 to 31 |
| extern "C" TALIGN16(const uint8, madd21[16]) = |
| { 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3 }; |
| |
| // Coefficients for source bytes 21 to 31 |
| extern "C" TALIGN16(const int16, round34[8]) = |
| { 2, 2, 2, 2, 2, 2, 2, 2 }; |
| |
| extern "C" TALIGN16(const uint8, shuf38a[16]) = |
| { 0, 3, 6, 8, 11, 14, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }; |
| |
| extern "C" TALIGN16(const uint8, shuf38b[16]) = |
| { 128, 128, 128, 128, 128, 128, 0, 3, 6, 8, 11, 14, 128, 128, 128, 128 }; |
| |
| // Arrange words 0,3,6 into 0,1,2 |
| extern "C" TALIGN16(const uint8, shufac0[16]) = |
| { 0, 1, 6, 7, 12, 13, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }; |
| |
| // Arrange words 0,3,6 into 3,4,5 |
| extern "C" TALIGN16(const uint8, shufac3[16]) = |
| { 128, 128, 128, 128, 128, 128, 0, 1, 6, 7, 12, 13, 128, 128, 128, 128 }; |
| |
| // Scaling values for boxes of 3x3 and 2x3 |
| extern "C" TALIGN16(const uint16, scaleac3[8]) = |
| { 65536 / 9, 65536 / 9, 65536 / 6, 65536 / 9, 65536 / 9, 65536 / 6, 0, 0 }; |
| |
| // Arrange first value for pixels 0,1,2,3,4,5 |
| extern "C" TALIGN16(const uint8, shufab0[16]) = |
| { 0, 128, 3, 128, 6, 128, 8, 128, 11, 128, 14, 128, 128, 128, 128, 128 }; |
| |
| // Arrange second value for pixels 0,1,2,3,4,5 |
| extern "C" TALIGN16(const uint8, shufab1[16]) = |
| { 1, 128, 4, 128, 7, 128, 9, 128, 12, 128, 15, 128, 128, 128, 128, 128 }; |
| |
| // Arrange third value for pixels 0,1,2,3,4,5 |
| extern "C" TALIGN16(const uint8, shufab2[16]) = |
| { 2, 128, 5, 128, 128, 128, 10, 128, 13, 128, 128, 128, 128, 128, 128, 128 }; |
| |
| // Scaling values for boxes of 3x2 and 2x2 |
| extern "C" TALIGN16(const uint16, scaleab2[8]) = |
| { 65536 / 3, 65536 / 3, 65536 / 2, 65536 / 3, 65536 / 3, 65536 / 2, 0, 0 }; |
| #endif |
| |
| #if defined(_M_IX86) && !defined(YUV_DISABLE_ASM) |
| |
| #define HAS_SCALEROWDOWN2_SSE2 |
| // Reads 32 pixels, throws half away and writes 16 pixels. |
| // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 16 byte aligned. |
| __declspec(naked) |
| static void ScaleRowDown2_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| __asm { |
| mov eax, [esp + 4] // src_ptr |
| // src_stride ignored |
| mov edx, [esp + 12] // dst_ptr |
| mov ecx, [esp + 16] // dst_width |
| pcmpeqb xmm5, xmm5 // generate mask 0x00ff00ff |
| psrlw xmm5, 8 |
| |
| wloop: |
| movdqa xmm0, [eax] |
| movdqa xmm1, [eax + 16] |
| lea eax, [eax + 32] |
| pand xmm0, xmm5 |
| pand xmm1, xmm5 |
| packuswb xmm0, xmm1 |
| movdqa [edx], xmm0 |
| lea edx, [edx + 16] |
| sub ecx, 16 |
| ja wloop |
| |
| ret |
| } |
| } |
| // Blends 32x2 rectangle to 16x1. |
| // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 16 byte aligned. |
| __declspec(naked) |
| void ScaleRowDown2Int_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| __asm { |
| push esi |
| mov eax, [esp + 4 + 4] // src_ptr |
| mov esi, [esp + 4 + 8] // src_stride |
| mov edx, [esp + 4 + 12] // dst_ptr |
| mov ecx, [esp + 4 + 16] // dst_width |
| pcmpeqb xmm5, xmm5 // generate mask 0x00ff00ff |
| psrlw xmm5, 8 |
| |
| wloop: |
| movdqa xmm0, [eax] |
| movdqa xmm1, [eax + 16] |
| movdqa xmm2, [eax + esi] |
| movdqa xmm3, [eax + esi + 16] |
| lea eax, [eax + 32] |
| pavgb xmm0, xmm2 // average rows |
| pavgb xmm1, xmm3 |
| |
| movdqa xmm2, xmm0 // average columns (32 to 16 pixels) |
| psrlw xmm0, 8 |
| movdqa xmm3, xmm1 |
| psrlw xmm1, 8 |
| pand xmm2, xmm5 |
| pand xmm3, xmm5 |
| pavgw xmm0, xmm2 |
| pavgw xmm1, xmm3 |
| packuswb xmm0, xmm1 |
| |
| movdqa [edx], xmm0 |
| lea edx, [edx + 16] |
| sub ecx, 16 |
| ja wloop |
| |
| pop esi |
| ret |
| } |
| } |
| |
| #define HAS_SCALEROWDOWN4_SSE2 |
| // Point samples 32 pixels to 8 pixels. |
| // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 8 byte aligned. |
| __declspec(naked) |
| static void ScaleRowDown4_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| __asm { |
| pushad |
| mov esi, [esp + 32 + 4] // src_ptr |
| // src_stride ignored |
| mov edi, [esp + 32 + 12] // dst_ptr |
| mov ecx, [esp + 32 + 16] // dst_width |
| pcmpeqb xmm5, xmm5 // generate mask 0x000000ff |
| psrld xmm5, 24 |
| |
| wloop: |
| movdqa xmm0, [esi] |
| movdqa xmm1, [esi + 16] |
| lea esi, [esi + 32] |
| pand xmm0, xmm5 |
| pand xmm1, xmm5 |
| packuswb xmm0, xmm1 |
| packuswb xmm0, xmm0 |
| movq qword ptr [edi], xmm0 |
| lea edi, [edi + 8] |
| sub ecx, 8 |
| ja wloop |
| |
| popad |
| ret |
| } |
| } |
| |
| // Blends 32x4 rectangle to 8x1. |
| // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 8 byte aligned. |
| __declspec(naked) |
| static void ScaleRowDown4Int_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| __asm { |
| pushad |
| mov esi, [esp + 32 + 4] // src_ptr |
| mov ebx, [esp + 32 + 8] // src_stride |
| mov edi, [esp + 32 + 12] // dst_ptr |
| mov ecx, [esp + 32 + 16] // dst_width |
| pcmpeqb xmm7, xmm7 // generate mask 0x00ff00ff |
| psrlw xmm7, 8 |
| lea edx, [ebx + ebx * 2] // src_stride * 3 |
| |
| wloop: |
| movdqa xmm0, [esi] |
| movdqa xmm1, [esi + 16] |
| movdqa xmm2, [esi + ebx] |
| movdqa xmm3, [esi + ebx + 16] |
| pavgb xmm0, xmm2 // average rows |
| pavgb xmm1, xmm3 |
| movdqa xmm2, [esi + ebx * 2] |
| movdqa xmm3, [esi + ebx * 2 + 16] |
| movdqa xmm4, [esi + edx] |
| movdqa xmm5, [esi + edx + 16] |
| lea esi, [esi + 32] |
| pavgb xmm2, xmm4 |
| pavgb xmm3, xmm5 |
| pavgb xmm0, xmm2 |
| pavgb xmm1, xmm3 |
| |
| movdqa xmm2, xmm0 // average columns (32 to 16 pixels) |
| psrlw xmm0, 8 |
| movdqa xmm3, xmm1 |
| psrlw xmm1, 8 |
| pand xmm2, xmm7 |
| pand xmm3, xmm7 |
| pavgw xmm0, xmm2 |
| pavgw xmm1, xmm3 |
| packuswb xmm0, xmm1 |
| |
| movdqa xmm2, xmm0 // average columns (16 to 8 pixels) |
| psrlw xmm0, 8 |
| pand xmm2, xmm7 |
| pavgw xmm0, xmm2 |
| packuswb xmm0, xmm0 |
| |
| movq qword ptr [edi], xmm0 |
| lea edi, [edi + 8] |
| sub ecx, 8 |
| ja wloop |
| |
| popad |
| ret |
| } |
| } |
| |
| #define HAS_SCALEROWDOWN8_SSE2 |
| // Point samples 32 pixels to 4 pixels. |
| // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 4 byte aligned. |
| __declspec(naked) |
| static void ScaleRowDown8_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| __asm { |
| pushad |
| mov esi, [esp + 32 + 4] // src_ptr |
| // src_stride ignored |
| mov edi, [esp + 32 + 12] // dst_ptr |
| mov ecx, [esp + 32 + 16] // dst_width |
| pcmpeqb xmm5, xmm5 // generate mask isolating 1 src 8 bytes |
| psrlq xmm5, 56 |
| |
| wloop: |
| movdqa xmm0, [esi] |
| movdqa xmm1, [esi + 16] |
| lea esi, [esi + 32] |
| pand xmm0, xmm5 |
| pand xmm1, xmm5 |
| packuswb xmm0, xmm1 // 32->16 |
| packuswb xmm0, xmm0 // 16->8 |
| packuswb xmm0, xmm0 // 8->4 |
| movd dword ptr [edi], xmm0 |
| lea edi, [edi + 4] |
| sub ecx, 4 |
| ja wloop |
| |
| popad |
| ret |
| } |
| } |
| |
| // Blends 32x8 rectangle to 4x1. |
| // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 4 byte aligned. |
| __declspec(naked) |
| static void ScaleRowDown8Int_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| __asm { |
| pushad |
| mov esi, [esp + 32 + 4] // src_ptr |
| mov ebx, [esp + 32 + 8] // src_stride |
| mov edi, [esp + 32 + 12] // dst_ptr |
| mov ecx, [esp + 32 + 16] // dst_width |
| lea edx, [ebx + ebx * 2] // src_stride * 3 |
| pxor xmm7, xmm7 |
| |
| wloop: |
| movdqa xmm0, [esi] // average 8 rows to 1 |
| movdqa xmm1, [esi + 16] |
| movdqa xmm2, [esi + ebx] |
| movdqa xmm3, [esi + ebx + 16] |
| pavgb xmm0, xmm2 |
| pavgb xmm1, xmm3 |
| movdqa xmm2, [esi + ebx * 2] |
| movdqa xmm3, [esi + ebx * 2 + 16] |
| movdqa xmm4, [esi + edx] |
| movdqa xmm5, [esi + edx + 16] |
| lea ebp, [esi + ebx * 4] |
| lea esi, [esi + 32] |
| pavgb xmm2, xmm4 |
| pavgb xmm3, xmm5 |
| pavgb xmm0, xmm2 |
| pavgb xmm1, xmm3 |
| |
| movdqa xmm2, [ebp] |
| movdqa xmm3, [ebp + 16] |
| movdqa xmm4, [ebp + ebx] |
| movdqa xmm5, [ebp + ebx + 16] |
| pavgb xmm2, xmm4 |
| pavgb xmm3, xmm5 |
| movdqa xmm4, [ebp + ebx * 2] |
| movdqa xmm5, [ebp + ebx * 2 + 16] |
| movdqa xmm6, [ebp + edx] |
| pavgb xmm4, xmm6 |
| movdqa xmm6, [ebp + edx + 16] |
| pavgb xmm5, xmm6 |
| pavgb xmm2, xmm4 |
| pavgb xmm3, xmm5 |
| pavgb xmm0, xmm2 |
| pavgb xmm1, xmm3 |
| |
| psadbw xmm0, xmm7 // average 32 pixels to 4 |
| psadbw xmm1, xmm7 |
| pshufd xmm0, xmm0, 0xd8 // x1x0 -> xx01 |
| pshufd xmm1, xmm1, 0x8d // x3x2 -> 32xx |
| por xmm0, xmm1 // -> 3201 |
| psrlw xmm0, 3 |
| packuswb xmm0, xmm0 |
| packuswb xmm0, xmm0 |
| movd dword ptr [edi], xmm0 |
| |
| lea edi, [edi + 4] |
| sub ecx, 4 |
| ja wloop |
| |
| popad |
| ret |
| } |
| } |
| |
| #define HAS_SCALEROWDOWN34_SSSE3 |
| // Point samples 32 pixels to 24 pixels. |
| // Produces three 8 byte values. For each 8 bytes, 16 bytes are read. |
| // Then shuffled to do the scaling. |
| |
| // Note that movdqa+palign may be better than movdqu. |
| // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 8 byte aligned. |
| __declspec(naked) |
| static void ScaleRowDown34_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| __asm { |
| pushad |
| mov esi, [esp + 32 + 4] // src_ptr |
| // src_stride ignored |
| mov edi, [esp + 32 + 12] // dst_ptr |
| mov ecx, [esp + 32 + 16] // dst_width |
| movdqa xmm3, _shuf0 |
| movdqa xmm4, _shuf1 |
| movdqa xmm5, _shuf2 |
| |
| wloop: |
| movdqa xmm0, [esi] |
| movdqa xmm1, [esi + 16] |
| lea esi, [esi + 32] |
| movdqa xmm2, xmm1 |
| palignr xmm1, xmm0, 8 |
| pshufb xmm0, xmm3 |
| pshufb xmm1, xmm4 |
| pshufb xmm2, xmm5 |
| movq qword ptr [edi], xmm0 |
| movq qword ptr [edi + 8], xmm1 |
| movq qword ptr [edi + 16], xmm2 |
| lea edi, [edi + 24] |
| sub ecx, 24 |
| ja wloop |
| |
| popad |
| ret |
| } |
| } |
| |
| // Blends 32x2 rectangle to 24x1 |
| // Produces three 8 byte values. For each 8 bytes, 16 bytes are read. |
| // Then shuffled to do the scaling. |
| |
| // Register usage: |
| // xmm0 src_row 0 |
| // xmm1 src_row 1 |
| // xmm2 shuf 0 |
| // xmm3 shuf 1 |
| // xmm4 shuf 2 |
| // xmm5 madd 0 |
| // xmm6 madd 1 |
| // xmm7 round34 |
| |
| // Note that movdqa+palign may be better than movdqu. |
| // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 8 byte aligned. |
| __declspec(naked) |
| static void ScaleRowDown34_1_Int_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| __asm { |
| pushad |
| mov esi, [esp + 32 + 4] // src_ptr |
| mov ebx, [esp + 32 + 8] // src_stride |
| mov edi, [esp + 32 + 12] // dst_ptr |
| mov ecx, [esp + 32 + 16] // dst_width |
| movdqa xmm2, _shuf01 |
| movdqa xmm3, _shuf11 |
| movdqa xmm4, _shuf21 |
| movdqa xmm5, _madd01 |
| movdqa xmm6, _madd11 |
| movdqa xmm7, _round34 |
| |
| wloop: |
| movdqa xmm0, [esi] // pixels 0..7 |
| movdqa xmm1, [esi+ebx] |
| pavgb xmm0, xmm1 |
| pshufb xmm0, xmm2 |
| pmaddubsw xmm0, xmm5 |
| paddsw xmm0, xmm7 |
| psrlw xmm0, 2 |
| packuswb xmm0, xmm0 |
| movq qword ptr [edi], xmm0 |
| movdqu xmm0, [esi+8] // pixels 8..15 |
| movdqu xmm1, [esi+ebx+8] |
| pavgb xmm0, xmm1 |
| pshufb xmm0, xmm3 |
| pmaddubsw xmm0, xmm6 |
| paddsw xmm0, xmm7 |
| psrlw xmm0, 2 |
| packuswb xmm0, xmm0 |
| movq qword ptr [edi+8], xmm0 |
| movdqa xmm0, [esi+16] // pixels 16..23 |
| movdqa xmm1, [esi+ebx+16] |
| lea esi, [esi+32] |
| pavgb xmm0, xmm1 |
| pshufb xmm0, xmm4 |
| movdqa xmm1, _madd21 |
| pmaddubsw xmm0, xmm1 |
| paddsw xmm0, xmm7 |
| psrlw xmm0, 2 |
| packuswb xmm0, xmm0 |
| movq qword ptr [edi+16], xmm0 |
| lea edi, [edi+24] |
| sub ecx, 24 |
| ja wloop |
| |
| popad |
| ret |
| } |
| } |
| |
| // Note that movdqa+palign may be better than movdqu. |
| // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 8 byte aligned. |
| __declspec(naked) |
| static void ScaleRowDown34_0_Int_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| __asm { |
| pushad |
| mov esi, [esp + 32 + 4] // src_ptr |
| mov ebx, [esp + 32 + 8] // src_stride |
| mov edi, [esp + 32 + 12] // dst_ptr |
| mov ecx, [esp + 32 + 16] // dst_width |
| movdqa xmm2, _shuf01 |
| movdqa xmm3, _shuf11 |
| movdqa xmm4, _shuf21 |
| movdqa xmm5, _madd01 |
| movdqa xmm6, _madd11 |
| movdqa xmm7, _round34 |
| |
| wloop: |
| movdqa xmm0, [esi] // pixels 0..7 |
| movdqa xmm1, [esi+ebx] |
| pavgb xmm1, xmm0 |
| pavgb xmm0, xmm1 |
| pshufb xmm0, xmm2 |
| pmaddubsw xmm0, xmm5 |
| paddsw xmm0, xmm7 |
| psrlw xmm0, 2 |
| packuswb xmm0, xmm0 |
| movq qword ptr [edi], xmm0 |
| movdqu xmm0, [esi+8] // pixels 8..15 |
| movdqu xmm1, [esi+ebx+8] |
| pavgb xmm1, xmm0 |
| pavgb xmm0, xmm1 |
| pshufb xmm0, xmm3 |
| pmaddubsw xmm0, xmm6 |
| paddsw xmm0, xmm7 |
| psrlw xmm0, 2 |
| packuswb xmm0, xmm0 |
| movq qword ptr [edi+8], xmm0 |
| movdqa xmm0, [esi+16] // pixels 16..23 |
| movdqa xmm1, [esi+ebx+16] |
| lea esi, [esi+32] |
| pavgb xmm1, xmm0 |
| pavgb xmm0, xmm1 |
| pshufb xmm0, xmm4 |
| movdqa xmm1, _madd21 |
| pmaddubsw xmm0, xmm1 |
| paddsw xmm0, xmm7 |
| psrlw xmm0, 2 |
| packuswb xmm0, xmm0 |
| movq qword ptr [edi+16], xmm0 |
| lea edi, [edi+24] |
| sub ecx, 24 |
| ja wloop |
| |
| popad |
| ret |
| } |
| } |
| |
| #define HAS_SCALEROWDOWN38_SSSE3 |
| // 3/8 point sampler |
| |
| // Scale 32 pixels to 12 |
| __declspec(naked) |
| static void ScaleRowDown38_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| __asm { |
| pushad |
| mov esi, [esp + 32 + 4] // src_ptr |
| mov edx, [esp + 32 + 8] // src_stride |
| mov edi, [esp + 32 + 12] // dst_ptr |
| mov ecx, [esp + 32 + 16] // dst_width |
| movdqa xmm4, _shuf38a |
| movdqa xmm5, _shuf38b |
| |
| xloop: |
| movdqa xmm0, [esi] // 16 pixels -> 0,1,2,3,4,5 |
| movdqa xmm1, [esi + 16] // 16 pixels -> 6,7,8,9,10,11 |
| lea esi, [esi + 32] |
| pshufb xmm0, xmm4 |
| pshufb xmm1, xmm5 |
| paddusb xmm0, xmm1 |
| |
| movq qword ptr [edi], xmm0 // write 12 pixels |
| movhlps xmm1, xmm0 |
| movd [edi + 8], xmm1 |
| lea edi, [edi + 12] |
| sub ecx, 12 |
| ja xloop |
| |
| popad |
| ret |
| } |
| } |
| |
| // Scale 16x3 pixels to 6x1 with interpolation |
| __declspec(naked) |
| static void ScaleRowDown38_3_Int_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| __asm { |
| pushad |
| mov esi, [esp + 32 + 4] // src_ptr |
| mov edx, [esp + 32 + 8] // src_stride |
| mov edi, [esp + 32 + 12] // dst_ptr |
| mov ecx, [esp + 32 + 16] // dst_width |
| movdqa xmm4, _shufac0 |
| movdqa xmm5, _shufac3 |
| movdqa xmm6, _scaleac3 |
| pxor xmm7, xmm7 |
| |
| xloop: |
| movdqa xmm0, [esi] // sum up 3 rows into xmm0/1 |
| movdqa xmm2, [esi + edx] |
| movhlps xmm1, xmm0 |
| movhlps xmm3, xmm2 |
| punpcklbw xmm0, xmm7 |
| punpcklbw xmm1, xmm7 |
| punpcklbw xmm2, xmm7 |
| punpcklbw xmm3, xmm7 |
| paddusw xmm0, xmm2 |
| paddusw xmm1, xmm3 |
| movdqa xmm2, [esi + edx * 2] |
| lea esi, [esi + 16] |
| movhlps xmm3, xmm2 |
| punpcklbw xmm2, xmm7 |
| punpcklbw xmm3, xmm7 |
| paddusw xmm0, xmm2 |
| paddusw xmm1, xmm3 |
| |
| movdqa xmm2, xmm0 // 8 pixels -> 0,1,2 of xmm2 |
| psrldq xmm0, 2 |
| paddusw xmm2, xmm0 |
| psrldq xmm0, 2 |
| paddusw xmm2, xmm0 |
| pshufb xmm2, xmm4 |
| |
| movdqa xmm3, xmm1 // 8 pixels -> 3,4,5 of xmm2 |
| psrldq xmm1, 2 |
| paddusw xmm3, xmm1 |
| psrldq xmm1, 2 |
| paddusw xmm3, xmm1 |
| pshufb xmm3, xmm5 |
| paddusw xmm2, xmm3 |
| |
| pmulhuw xmm2, xmm6 // divide by 9,9,6, 9,9,6 |
| packuswb xmm2, xmm2 |
| |
| movd [edi], xmm2 // write 6 pixels |
| pextrw eax, xmm2, 2 |
| mov [edi + 4], ax |
| lea edi, [edi + 6] |
| sub ecx, 6 |
| ja xloop |
| |
| popad |
| ret |
| } |
| } |
| |
| // Scale 16x2 pixels to 6x1 with interpolation |
| __declspec(naked) |
| static void ScaleRowDown38_2_Int_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| __asm { |
| pushad |
| mov esi, [esp + 32 + 4] // src_ptr |
| mov edx, [esp + 32 + 8] // src_stride |
| mov edi, [esp + 32 + 12] // dst_ptr |
| mov ecx, [esp + 32 + 16] // dst_width |
| movdqa xmm4, _shufab0 |
| movdqa xmm5, _shufab1 |
| movdqa xmm6, _shufab2 |
| movdqa xmm7, _scaleab2 |
| |
| xloop: |
| movdqa xmm2, [esi] // average 2 rows into xmm2 |
| pavgb xmm2, [esi + edx] |
| lea esi, [esi + 16] |
| |
| movdqa xmm0, xmm2 // 16 pixels -> 0,1,2,3,4,5 of xmm0 |
| pshufb xmm0, xmm4 |
| movdqa xmm1, xmm2 |
| pshufb xmm1, xmm5 |
| paddusw xmm0, xmm1 |
| pshufb xmm2, xmm6 |
| paddusw xmm0, xmm2 |
| |
| pmulhuw xmm0, xmm7 // divide by 3,3,2, 3,3,2 |
| packuswb xmm0, xmm0 |
| |
| movd [edi], xmm0 // write 6 pixels |
| pextrw eax, xmm0, 2 |
| mov [edi + 4], ax |
| lea edi, [edi + 6] |
| sub ecx, 6 |
| ja xloop |
| |
| popad |
| ret |
| } |
| } |
| |
| #define HAS_SCALEADDROWS_SSE2 |
| |
| // Reads 8xN bytes and produces 16 shorts at a time. |
| __declspec(naked) |
| static void ScaleAddRows_SSE2(const uint8* src_ptr, int src_stride, |
| uint16* dst_ptr, int src_width, |
| int src_height) { |
| __asm { |
| pushad |
| mov esi, [esp + 32 + 4] // src_ptr |
| mov edx, [esp + 32 + 8] // src_stride |
| mov edi, [esp + 32 + 12] // dst_ptr |
| mov ecx, [esp + 32 + 16] // dst_width |
| mov ebx, [esp + 32 + 20] // height |
| pxor xmm5, xmm5 |
| dec ebx |
| |
| xloop: |
| // first row |
| movdqa xmm2, [esi] |
| lea eax, [esi + edx] |
| movhlps xmm3, xmm2 |
| mov ebp, ebx |
| punpcklbw xmm2, xmm5 |
| punpcklbw xmm3, xmm5 |
| |
| // sum remaining rows |
| yloop: |
| movdqa xmm0, [eax] // read 16 pixels |
| lea eax, [eax + edx] // advance to next row |
| movhlps xmm1, xmm0 |
| punpcklbw xmm0, xmm5 |
| punpcklbw xmm1, xmm5 |
| paddusw xmm2, xmm0 // sum 16 words |
| paddusw xmm3, xmm1 |
| sub ebp, 1 |
| ja yloop |
| |
| movdqa [edi], xmm2 |
| movdqa [edi + 16], xmm3 |
| lea edi, [edi + 32] |
| lea esi, [esi + 16] |
| |
| sub ecx, 16 |
| ja xloop |
| |
| popad |
| ret |
| } |
| } |
| |
| // Bilinear row filtering combines 16x2 -> 16x1. SSE2 version. |
| #define HAS_SCALEFILTERROWS_SSE2 |
| __declspec(naked) |
| static void ScaleFilterRows_SSE2(uint8* dst_ptr, const uint8* src_ptr, |
| int src_stride, int dst_width, |
| int source_y_fraction) { |
| __asm { |
| push esi |
| push edi |
| mov edi, [esp + 8 + 4] // dst_ptr |
| mov esi, [esp + 8 + 8] // src_ptr |
| mov edx, [esp + 8 + 12] // src_stride |
| mov ecx, [esp + 8 + 16] // dst_width |
| mov eax, [esp + 8 + 20] // source_y_fraction (0..255) |
| cmp eax, 0 |
| je xloop1 |
| cmp eax, 128 |
| je xloop2 |
| |
| movd xmm6, eax // xmm6 = y fraction |
| punpcklwd xmm6, xmm6 |
| pshufd xmm6, xmm6, 0 |
| neg eax // xmm5 = 256 - y fraction |
| add eax, 256 |
| movd xmm5, eax |
| punpcklwd xmm5, xmm5 |
| pshufd xmm5, xmm5, 0 |
| pxor xmm7, xmm7 |
| |
| xloop: |
| movdqa xmm0, [esi] |
| movdqa xmm2, [esi + edx] |
| lea esi, [esi + 16] |
| movdqa xmm1, xmm0 |
| movdqa xmm3, xmm2 |
| punpcklbw xmm0, xmm7 |
| punpcklbw xmm2, xmm7 |
| punpckhbw xmm1, xmm7 |
| punpckhbw xmm3, xmm7 |
| pmullw xmm0, xmm5 // scale row 0 |
| pmullw xmm1, xmm5 |
| pmullw xmm2, xmm6 // scale row 1 |
| pmullw xmm3, xmm6 |
| paddusw xmm0, xmm2 // sum rows |
| paddusw xmm1, xmm3 |
| psrlw xmm0, 8 |
| psrlw xmm1, 8 |
| packuswb xmm0, xmm1 |
| movdqa [edi], xmm0 |
| lea edi, [edi + 16] |
| sub ecx, 16 |
| ja xloop |
| |
| mov al, [edi - 1] |
| mov [edi], al |
| pop edi |
| pop esi |
| ret |
| |
| xloop1: |
| movdqa xmm0, [esi] |
| lea esi, [esi + 16] |
| movdqa [edi], xmm0 |
| lea edi, [edi + 16] |
| sub ecx, 16 |
| ja xloop1 |
| |
| mov al, [edi - 1] |
| mov [edi], al |
| pop edi |
| pop esi |
| ret |
| |
| xloop2: |
| movdqa xmm0, [esi] |
| movdqa xmm2, [esi + edx] |
| lea esi, [esi + 16] |
| pavgb xmm0, xmm2 |
| movdqa [edi], xmm0 |
| lea edi, [edi + 16] |
| sub ecx, 16 |
| ja xloop2 |
| |
| mov al, [edi - 1] |
| mov [edi], al |
| pop edi |
| pop esi |
| ret |
| } |
| } |
| |
| // Bilinear row filtering combines 16x2 -> 16x1. SSSE3 version. |
| #define HAS_SCALEFILTERROWS_SSSE3 |
| __declspec(naked) |
| static void ScaleFilterRows_SSSE3(uint8* dst_ptr, const uint8* src_ptr, |
| int src_stride, int dst_width, |
| int source_y_fraction) { |
| __asm { |
| push esi |
| push edi |
| mov edi, [esp + 8 + 4] // dst_ptr |
| mov esi, [esp + 8 + 8] // src_ptr |
| mov edx, [esp + 8 + 12] // src_stride |
| mov ecx, [esp + 8 + 16] // dst_width |
| mov eax, [esp + 8 + 20] // source_y_fraction (0..255) |
| cmp eax, 0 |
| je xloop1 |
| cmp eax, 128 |
| je xloop2 |
| |
| shr eax, 1 |
| mov ah,al |
| neg al |
| add al, 128 |
| movd xmm5, eax |
| punpcklwd xmm5, xmm5 |
| pshufd xmm5, xmm5, 0 |
| |
| xloop: |
| movdqa xmm0, [esi] |
| movdqa xmm2, [esi + edx] |
| lea esi, [esi + 16] |
| movdqa xmm1, xmm0 |
| punpcklbw xmm0, xmm2 |
| punpckhbw xmm1, xmm2 |
| pmaddubsw xmm0, xmm5 |
| pmaddubsw xmm1, xmm5 |
| psrlw xmm0, 7 |
| psrlw xmm1, 7 |
| packuswb xmm0, xmm1 |
| movdqa [edi], xmm0 |
| lea edi, [edi + 16] |
| sub ecx, 16 |
| ja xloop |
| |
| mov al, [edi - 1] |
| mov [edi], al |
| pop edi |
| pop esi |
| ret |
| |
| xloop1: |
| movdqa xmm0, [esi] |
| lea esi, [esi + 16] |
| movdqa [edi], xmm0 |
| lea edi, [edi + 16] |
| sub ecx, 16 |
| ja xloop1 |
| |
| mov al, [edi - 1] |
| mov [edi], al |
| pop edi |
| pop esi |
| ret |
| |
| xloop2: |
| movdqa xmm0, [esi] |
| movdqa xmm2, [esi + edx] |
| lea esi, [esi + 16] |
| pavgb xmm0, xmm2 |
| movdqa [edi], xmm0 |
| lea edi, [edi + 16] |
| sub ecx, 16 |
| ja xloop2 |
| |
| mov al, [edi - 1] |
| mov [edi], al |
| pop edi |
| pop esi |
| ret |
| |
| } |
| } |
| |
| // Note that movdqa+palign may be better than movdqu. |
| // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 8 byte aligned. |
| __declspec(naked) |
| static void ScaleFilterCols34_SSSE3(uint8* dst_ptr, const uint8* src_ptr, |
| int dst_width) { |
| __asm { |
| mov edx, [esp + 4] // dst_ptr |
| mov eax, [esp + 8] // src_ptr |
| mov ecx, [esp + 12] // dst_width |
| movdqa xmm1, _round34 |
| movdqa xmm2, _shuf01 |
| movdqa xmm3, _shuf11 |
| movdqa xmm4, _shuf21 |
| movdqa xmm5, _madd01 |
| movdqa xmm6, _madd11 |
| movdqa xmm7, _madd21 |
| |
| wloop: |
| movdqa xmm0, [eax] // pixels 0..7 |
| pshufb xmm0, xmm2 |
| pmaddubsw xmm0, xmm5 |
| paddsw xmm0, xmm1 |
| psrlw xmm0, 2 |
| packuswb xmm0, xmm0 |
| movq qword ptr [edx], xmm0 |
| movdqu xmm0, [eax+8] // pixels 8..15 |
| pshufb xmm0, xmm3 |
| pmaddubsw xmm0, xmm6 |
| paddsw xmm0, xmm1 |
| psrlw xmm0, 2 |
| packuswb xmm0, xmm0 |
| movq qword ptr [edx+8], xmm0 |
| movdqa xmm0, [eax+16] // pixels 16..23 |
| lea eax, [eax+32] |
| pshufb xmm0, xmm4 |
| pmaddubsw xmm0, xmm7 |
| paddsw xmm0, xmm1 |
| psrlw xmm0, 2 |
| packuswb xmm0, xmm0 |
| movq qword ptr [edx+16], xmm0 |
| lea edx, [edx+24] |
| sub ecx, 24 |
| ja wloop |
| ret |
| } |
| } |
| |
| #elif (defined(__x86_64__) || defined(__i386__)) && !defined(YUV_DISABLE_ASM) |
| |
| // GCC versions of row functions are verbatim conversions from Visual C. |
| // Generated using gcc disassembly on Visual C object file: |
| // objdump -D yuvscaler.obj >yuvscaler.txt |
| #define HAS_SCALEROWDOWN2_SSE2 |
| static void ScaleRowDown2_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "pcmpeqb %%xmm5,%%xmm5 \n" |
| "psrlw $0x8,%%xmm5 \n" |
| "1:" |
| "movdqa (%0),%%xmm0 \n" |
| "movdqa 0x10(%0),%%xmm1 \n" |
| "lea 0x20(%0),%0 \n" |
| "pand %%xmm5,%%xmm0 \n" |
| "pand %%xmm5,%%xmm1 \n" |
| "packuswb %%xmm1,%%xmm0 \n" |
| "movdqa %%xmm0,(%1) \n" |
| "lea 0x10(%1),%1 \n" |
| "sub $0x10,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : |
| : "memory", "cc" |
| ); |
| } |
| |
| static void ScaleRowDown2Int_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "pcmpeqb %%xmm5,%%xmm5 \n" |
| "psrlw $0x8,%%xmm5 \n" |
| "1:" |
| "movdqa (%0),%%xmm0 \n" |
| "movdqa 0x10(%0),%%xmm1 \n" |
| "movdqa (%0,%3,1),%%xmm2 \n" |
| "movdqa 0x10(%0,%3,1),%%xmm3 \n" |
| "lea 0x20(%0),%0 \n" |
| "pavgb %%xmm2,%%xmm0 \n" |
| "pavgb %%xmm3,%%xmm1 \n" |
| "movdqa %%xmm0,%%xmm2 \n" |
| "psrlw $0x8,%%xmm0 \n" |
| "movdqa %%xmm1,%%xmm3 \n" |
| "psrlw $0x8,%%xmm1 \n" |
| "pand %%xmm5,%%xmm2 \n" |
| "pand %%xmm5,%%xmm3 \n" |
| "pavgw %%xmm2,%%xmm0 \n" |
| "pavgw %%xmm3,%%xmm1 \n" |
| "packuswb %%xmm1,%%xmm0 \n" |
| "movdqa %%xmm0,(%1) \n" |
| "lea 0x10(%1),%1 \n" |
| "sub $0x10,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : "r"(static_cast<intptr_t>(src_stride)) // %3 |
| : "memory", "cc" |
| ); |
| } |
| |
| #define HAS_SCALEROWDOWN4_SSE2 |
| static void ScaleRowDown4_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "pcmpeqb %%xmm5,%%xmm5 \n" |
| "psrld $0x18,%%xmm5 \n" |
| "1:" |
| "movdqa (%0),%%xmm0 \n" |
| "movdqa 0x10(%0),%%xmm1 \n" |
| "lea 0x20(%0),%0 \n" |
| "pand %%xmm5,%%xmm0 \n" |
| "pand %%xmm5,%%xmm1 \n" |
| "packuswb %%xmm1,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "movq %%xmm0,(%1) \n" |
| "lea 0x8(%1),%1 \n" |
| "sub $0x8,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : |
| : "memory", "cc" |
| ); |
| } |
| |
| static void ScaleRowDown4Int_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| intptr_t temp = 0; |
| asm volatile ( |
| "pcmpeqb %%xmm7,%%xmm7 \n" |
| "psrlw $0x8,%%xmm7 \n" |
| "lea (%4,%4,2),%3 \n" |
| "1:" |
| "movdqa (%0),%%xmm0 \n" |
| "movdqa 0x10(%0),%%xmm1 \n" |
| "movdqa (%0,%4,1),%%xmm2 \n" |
| "movdqa 0x10(%0,%4,1),%%xmm3 \n" |
| "pavgb %%xmm2,%%xmm0 \n" |
| "pavgb %%xmm3,%%xmm1 \n" |
| "movdqa (%0,%4,2),%%xmm2 \n" |
| "movdqa 0x10(%0,%4,2),%%xmm3 \n" |
| "movdqa (%0,%3,1),%%xmm4 \n" |
| "movdqa 0x10(%0,%3,1),%%xmm5 \n" |
| "lea 0x20(%0),%0 \n" |
| "pavgb %%xmm4,%%xmm2 \n" |
| "pavgb %%xmm2,%%xmm0 \n" |
| "pavgb %%xmm5,%%xmm3 \n" |
| "pavgb %%xmm3,%%xmm1 \n" |
| "movdqa %%xmm0,%%xmm2 \n" |
| "psrlw $0x8,%%xmm0 \n" |
| "movdqa %%xmm1,%%xmm3 \n" |
| "psrlw $0x8,%%xmm1 \n" |
| "pand %%xmm7,%%xmm2 \n" |
| "pand %%xmm7,%%xmm3 \n" |
| "pavgw %%xmm2,%%xmm0 \n" |
| "pavgw %%xmm3,%%xmm1 \n" |
| "packuswb %%xmm1,%%xmm0 \n" |
| "movdqa %%xmm0,%%xmm2 \n" |
| "psrlw $0x8,%%xmm0 \n" |
| "pand %%xmm7,%%xmm2 \n" |
| "pavgw %%xmm2,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "movq %%xmm0,(%1) \n" |
| "lea 0x8(%1),%1 \n" |
| "sub $0x8,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width), // %2 |
| "+r"(temp) // %3 |
| : "r"(static_cast<intptr_t>(src_stride)) // %4 |
| : "memory", "cc" |
| #if defined(__x86_64__) |
| , "xmm6", "xmm7" |
| #endif |
| ); |
| } |
| |
| #define HAS_SCALEROWDOWN8_SSE2 |
| static void ScaleRowDown8_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "pcmpeqb %%xmm5,%%xmm5 \n" |
| "psrlq $0x38,%%xmm5 \n" |
| "1:" |
| "movdqa (%0),%%xmm0 \n" |
| "movdqa 0x10(%0),%%xmm1 \n" |
| "lea 0x20(%0),%0 \n" |
| "pand %%xmm5,%%xmm0 \n" |
| "pand %%xmm5,%%xmm1 \n" |
| "packuswb %%xmm1,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "movd %%xmm0,(%1) \n" |
| "lea 0x4(%1),%1 \n" |
| "sub $0x4,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : |
| : "memory", "cc" |
| ); |
| } |
| |
| #if defined(__i386__) |
| extern "C" void ScaleRowDown8Int_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| asm( |
| DECLARE_FUNCTION(ScaleRowDown8Int_SSE2) |
| "pusha \n" |
| "mov 0x24(%esp),%esi \n" |
| "mov 0x28(%esp),%ebx \n" |
| "mov 0x2c(%esp),%edi \n" |
| "mov 0x30(%esp),%ecx \n" |
| "lea (%ebx,%ebx,2),%edx \n" |
| "pxor %xmm7,%xmm7 \n" |
| |
| "1:" |
| "movdqa (%esi),%xmm0 \n" |
| "movdqa 0x10(%esi),%xmm1 \n" |
| "movdqa (%esi,%ebx,1),%xmm2 \n" |
| "movdqa 0x10(%esi,%ebx,1),%xmm3 \n" |
| "pavgb %xmm2,%xmm0 \n" |
| "pavgb %xmm3,%xmm1 \n" |
| "movdqa (%esi,%ebx,2),%xmm2 \n" |
| "movdqa 0x10(%esi,%ebx,2),%xmm3 \n" |
| "movdqa (%esi,%edx,1),%xmm4 \n" |
| "movdqa 0x10(%esi,%edx,1),%xmm5 \n" |
| "lea (%esi,%ebx,4),%ebp \n" |
| "lea 0x20(%esi),%esi \n" |
| "pavgb %xmm4,%xmm2 \n" |
| "pavgb %xmm5,%xmm3 \n" |
| "pavgb %xmm2,%xmm0 \n" |
| "pavgb %xmm3,%xmm1 \n" |
| "movdqa 0x0(%ebp),%xmm2 \n" |
| "movdqa 0x10(%ebp),%xmm3 \n" |
| "movdqa 0x0(%ebp,%ebx,1),%xmm4 \n" |
| "movdqa 0x10(%ebp,%ebx,1),%xmm5 \n" |
| "pavgb %xmm4,%xmm2 \n" |
| "pavgb %xmm5,%xmm3 \n" |
| "movdqa 0x0(%ebp,%ebx,2),%xmm4 \n" |
| "movdqa 0x10(%ebp,%ebx,2),%xmm5 \n" |
| "movdqa 0x0(%ebp,%edx,1),%xmm6 \n" |
| "pavgb %xmm6,%xmm4 \n" |
| "movdqa 0x10(%ebp,%edx,1),%xmm6 \n" |
| "pavgb %xmm6,%xmm5 \n" |
| "pavgb %xmm4,%xmm2 \n" |
| "pavgb %xmm5,%xmm3 \n" |
| "pavgb %xmm2,%xmm0 \n" |
| "pavgb %xmm3,%xmm1 \n" |
| "psadbw %xmm7,%xmm0 \n" |
| "psadbw %xmm7,%xmm1 \n" |
| "pshufd $0xd8,%xmm0,%xmm0 \n" |
| "pshufd $0x8d,%xmm1,%xmm1 \n" |
| "por %xmm1,%xmm0 \n" |
| "psrlw $0x3,%xmm0 \n" |
| "packuswb %xmm0,%xmm0 \n" |
| "packuswb %xmm0,%xmm0 \n" |
| "movd %xmm0,(%edi) \n" |
| "lea 0x4(%edi),%edi \n" |
| "sub $0x4,%ecx \n" |
| "ja 1b \n" |
| "popa \n" |
| "ret \n" |
| ); |
| |
| // fpic is used for magiccam plugin |
| #if !defined(__PIC__) |
| #define HAS_SCALEROWDOWN34_SSSE3 |
| extern "C" void ScaleRowDown34_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| asm( |
| DECLARE_FUNCTION(ScaleRowDown34_SSSE3) |
| "pusha \n" |
| "mov 0x24(%esp),%esi \n" |
| "mov 0x2c(%esp),%edi \n" |
| "mov 0x30(%esp),%ecx \n" |
| "movdqa _shuf0,%xmm3 \n" |
| "movdqa _shuf1,%xmm4 \n" |
| "movdqa _shuf2,%xmm5 \n" |
| |
| "1:" |
| "movdqa (%esi),%xmm0 \n" |
| "movdqa 0x10(%esi),%xmm2 \n" |
| "lea 0x20(%esi),%esi \n" |
| "movdqa %xmm2,%xmm1 \n" |
| "palignr $0x8,%xmm0,%xmm1 \n" |
| "pshufb %xmm3,%xmm0 \n" |
| "pshufb %xmm4,%xmm1 \n" |
| "pshufb %xmm5,%xmm2 \n" |
| "movq %xmm0,(%edi) \n" |
| "movq %xmm1,0x8(%edi) \n" |
| "movq %xmm2,0x10(%edi) \n" |
| "lea 0x18(%edi),%edi \n" |
| "sub $0x18,%ecx \n" |
| "ja 1b \n" |
| "popa \n" |
| "ret \n" |
| ); |
| |
| extern "C" void ScaleRowDown34_1_Int_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| asm( |
| DECLARE_FUNCTION(ScaleRowDown34_1_Int_SSSE3) |
| "pusha \n" |
| "mov 0x24(%esp),%esi \n" |
| "mov 0x28(%esp),%ebp \n" |
| "mov 0x2c(%esp),%edi \n" |
| "mov 0x30(%esp),%ecx \n" |
| "movdqa _shuf01,%xmm2 \n" |
| "movdqa _shuf11,%xmm3 \n" |
| "movdqa _shuf21,%xmm4 \n" |
| "movdqa _madd01,%xmm5 \n" |
| "movdqa _madd11,%xmm6 \n" |
| "movdqa _round34,%xmm7 \n" |
| |
| "1:" |
| "movdqa (%esi),%xmm0 \n" |
| "movdqa (%esi,%ebp),%xmm1 \n" |
| "pavgb %xmm1,%xmm0 \n" |
| "pshufb %xmm2,%xmm0 \n" |
| "pmaddubsw %xmm5,%xmm0 \n" |
| "paddsw %xmm7,%xmm0 \n" |
| "psrlw $0x2,%xmm0 \n" |
| "packuswb %xmm0,%xmm0 \n" |
| "movq %xmm0,(%edi) \n" |
| "movdqu 0x8(%esi),%xmm0 \n" |
| "movdqu 0x8(%esi,%ebp),%xmm1 \n" |
| "pavgb %xmm1,%xmm0 \n" |
| "pshufb %xmm3,%xmm0 \n" |
| "pmaddubsw %xmm6,%xmm0 \n" |
| "paddsw %xmm7,%xmm0 \n" |
| "psrlw $0x2,%xmm0 \n" |
| "packuswb %xmm0,%xmm0 \n" |
| "movq %xmm0,0x8(%edi) \n" |
| "movdqa 0x10(%esi),%xmm0 \n" |
| "movdqa 0x10(%esi,%ebp),%xmm1 \n" |
| "lea 0x20(%esi),%esi \n" |
| "pavgb %xmm1,%xmm0 \n" |
| "pshufb %xmm4,%xmm0 \n" |
| "movdqa _madd21,%xmm1 \n" |
| "pmaddubsw %xmm1,%xmm0 \n" |
| "paddsw %xmm7,%xmm0 \n" |
| "psrlw $0x2,%xmm0 \n" |
| "packuswb %xmm0,%xmm0 \n" |
| "movq %xmm0,0x10(%edi) \n" |
| "lea 0x18(%edi),%edi \n" |
| "sub $0x18,%ecx \n" |
| "ja 1b \n" |
| |
| "popa \n" |
| "ret \n" |
| ); |
| |
| extern "C" void ScaleRowDown34_0_Int_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| asm( |
| DECLARE_FUNCTION(ScaleRowDown34_0_Int_SSSE3) |
| "pusha \n" |
| "mov 0x24(%esp),%esi \n" |
| "mov 0x28(%esp),%ebp \n" |
| "mov 0x2c(%esp),%edi \n" |
| "mov 0x30(%esp),%ecx \n" |
| "movdqa _shuf01,%xmm2 \n" |
| "movdqa _shuf11,%xmm3 \n" |
| "movdqa _shuf21,%xmm4 \n" |
| "movdqa _madd01,%xmm5 \n" |
| "movdqa _madd11,%xmm6 \n" |
| "movdqa _round34,%xmm7 \n" |
| |
| "1:" |
| "movdqa (%esi),%xmm0 \n" |
| "movdqa (%esi,%ebp,1),%xmm1 \n" |
| "pavgb %xmm0,%xmm1 \n" |
| "pavgb %xmm1,%xmm0 \n" |
| "pshufb %xmm2,%xmm0 \n" |
| "pmaddubsw %xmm5,%xmm0 \n" |
| "paddsw %xmm7,%xmm0 \n" |
| "psrlw $0x2,%xmm0 \n" |
| "packuswb %xmm0,%xmm0 \n" |
| "movq %xmm0,(%edi) \n" |
| "movdqu 0x8(%esi),%xmm0 \n" |
| "movdqu 0x8(%esi,%ebp,1),%xmm1 \n" |
| "pavgb %xmm0,%xmm1 \n" |
| "pavgb %xmm1,%xmm0 \n" |
| "pshufb %xmm3,%xmm0 \n" |
| "pmaddubsw %xmm6,%xmm0 \n" |
| "paddsw %xmm7,%xmm0 \n" |
| "psrlw $0x2,%xmm0 \n" |
| "packuswb %xmm0,%xmm0 \n" |
| "movq %xmm0,0x8(%edi) \n" |
| "movdqa 0x10(%esi),%xmm0 \n" |
| "movdqa 0x10(%esi,%ebp,1),%xmm1 \n" |
| "lea 0x20(%esi),%esi \n" |
| "pavgb %xmm0,%xmm1 \n" |
| "pavgb %xmm1,%xmm0 \n" |
| "pshufb %xmm4,%xmm0 \n" |
| "movdqa _madd21,%xmm1 \n" |
| "pmaddubsw %xmm1,%xmm0 \n" |
| "paddsw %xmm7,%xmm0 \n" |
| "psrlw $0x2,%xmm0 \n" |
| "packuswb %xmm0,%xmm0 \n" |
| "movq %xmm0,0x10(%edi) \n" |
| "lea 0x18(%edi),%edi \n" |
| "sub $0x18,%ecx \n" |
| "ja 1b \n" |
| "popa \n" |
| "ret \n" |
| ); |
| |
| #define HAS_SCALEROWDOWN38_SSSE3 |
| extern "C" void ScaleRowDown38_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| asm( |
| DECLARE_FUNCTION(ScaleRowDown38_SSSE3) |
| "pusha \n" |
| "mov 0x24(%esp),%esi \n" |
| "mov 0x28(%esp),%edx \n" |
| "mov 0x2c(%esp),%edi \n" |
| "mov 0x30(%esp),%ecx \n" |
| "movdqa _shuf38a ,%xmm4 \n" |
| "movdqa _shuf38b ,%xmm5 \n" |
| |
| "1:" |
| "movdqa (%esi),%xmm0 \n" |
| "movdqa 0x10(%esi),%xmm1 \n" |
| "lea 0x20(%esi),%esi \n" |
| "pshufb %xmm4,%xmm0 \n" |
| "pshufb %xmm5,%xmm1 \n" |
| "paddusb %xmm1,%xmm0 \n" |
| "movq %xmm0,(%edi) \n" |
| "movhlps %xmm0,%xmm1 \n" |
| "movd %xmm1,0x8(%edi) \n" |
| "lea 0xc(%edi),%edi \n" |
| "sub $0xc,%ecx \n" |
| "ja 1b \n" |
| "popa \n" |
| "ret \n" |
| ); |
| |
| extern "C" void ScaleRowDown38_3_Int_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| asm( |
| DECLARE_FUNCTION(ScaleRowDown38_3_Int_SSSE3) |
| "pusha \n" |
| "mov 0x24(%esp),%esi \n" |
| "mov 0x28(%esp),%edx \n" |
| "mov 0x2c(%esp),%edi \n" |
| "mov 0x30(%esp),%ecx \n" |
| "movdqa _shufac0,%xmm4 \n" |
| "movdqa _shufac3,%xmm5 \n" |
| "movdqa _scaleac3,%xmm6 \n" |
| "pxor %xmm7,%xmm7 \n" |
| |
| "1:" |
| "movdqa (%esi),%xmm0 \n" |
| "movdqa (%esi,%edx,1),%xmm2 \n" |
| "movhlps %xmm0,%xmm1 \n" |
| "movhlps %xmm2,%xmm3 \n" |
| "punpcklbw %xmm7,%xmm0 \n" |
| "punpcklbw %xmm7,%xmm1 \n" |
| "punpcklbw %xmm7,%xmm2 \n" |
| "punpcklbw %xmm7,%xmm3 \n" |
| "paddusw %xmm2,%xmm0 \n" |
| "paddusw %xmm3,%xmm1 \n" |
| "movdqa (%esi,%edx,2),%xmm2 \n" |
| "lea 0x10(%esi),%esi \n" |
| "movhlps %xmm2,%xmm3 \n" |
| "punpcklbw %xmm7,%xmm2 \n" |
| "punpcklbw %xmm7,%xmm3 \n" |
| "paddusw %xmm2,%xmm0 \n" |
| "paddusw %xmm3,%xmm1 \n" |
| "movdqa %xmm0,%xmm2 \n" |
| "psrldq $0x2,%xmm0 \n" |
| "paddusw %xmm0,%xmm2 \n" |
| "psrldq $0x2,%xmm0 \n" |
| "paddusw %xmm0,%xmm2 \n" |
| "pshufb %xmm4,%xmm2 \n" |
| "movdqa %xmm1,%xmm3 \n" |
| "psrldq $0x2,%xmm1 \n" |
| "paddusw %xmm1,%xmm3 \n" |
| "psrldq $0x2,%xmm1 \n" |
| "paddusw %xmm1,%xmm3 \n" |
| "pshufb %xmm5,%xmm3 \n" |
| "paddusw %xmm3,%xmm2 \n" |
| "pmulhuw %xmm6,%xmm2 \n" |
| "packuswb %xmm2,%xmm2 \n" |
| "movd %xmm2,(%edi) \n" |
| "pextrw $0x2,%xmm2,%eax \n" |
| "mov %ax,0x4(%edi) \n" |
| "lea 0x6(%edi),%edi \n" |
| "sub $0x6,%ecx \n" |
| "ja 1b \n" |
| "popa \n" |
| "ret \n" |
| ); |
| |
| extern "C" void ScaleRowDown38_2_Int_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| asm( |
| DECLARE_FUNCTION(ScaleRowDown38_2_Int_SSSE3) |
| "pusha \n" |
| "mov 0x24(%esp),%esi \n" |
| "mov 0x28(%esp),%edx \n" |
| "mov 0x2c(%esp),%edi \n" |
| "mov 0x30(%esp),%ecx \n" |
| "movdqa _shufab0,%xmm4 \n" |
| "movdqa _shufab1,%xmm5 \n" |
| "movdqa _shufab2,%xmm6 \n" |
| "movdqa _scaleab2,%xmm7 \n" |
| |
| "1:" |
| "movdqa (%esi),%xmm2 \n" |
| "pavgb (%esi,%edx,1),%xmm2 \n" |
| "lea 0x10(%esi),%esi \n" |
| "movdqa %xmm2,%xmm0 \n" |
| "pshufb %xmm4,%xmm0 \n" |
| "movdqa %xmm2,%xmm1 \n" |
| "pshufb %xmm5,%xmm1 \n" |
| "paddusw %xmm1,%xmm0 \n" |
| "pshufb %xmm6,%xmm2 \n" |
| "paddusw %xmm2,%xmm0 \n" |
| "pmulhuw %xmm7,%xmm0 \n" |
| "packuswb %xmm0,%xmm0 \n" |
| "movd %xmm0,(%edi) \n" |
| "pextrw $0x2,%xmm0,%eax \n" |
| "mov %ax,0x4(%edi) \n" |
| "lea 0x6(%edi),%edi \n" |
| "sub $0x6,%ecx \n" |
| "ja 1b \n" |
| "popa \n" |
| "ret \n" |
| ); |
| #endif // __PIC__ |
| |
| #define HAS_SCALEADDROWS_SSE2 |
| extern "C" void ScaleAddRows_SSE2(const uint8* src_ptr, int src_stride, |
| uint16* dst_ptr, int src_width, |
| int src_height); |
| asm( |
| DECLARE_FUNCTION(ScaleAddRows_SSE2) |
| "pusha \n" |
| "mov 0x24(%esp),%esi \n" |
| "mov 0x28(%esp),%edx \n" |
| "mov 0x2c(%esp),%edi \n" |
| "mov 0x30(%esp),%ecx \n" |
| "mov 0x34(%esp),%ebx \n" |
| "pxor %xmm5,%xmm5 \n" |
| |
| "1:" |
| "movdqa (%esi),%xmm2 \n" |
| "lea (%esi,%edx,1),%eax \n" |
| "movhlps %xmm2,%xmm3 \n" |
| "lea -0x1(%ebx),%ebp \n" |
| "punpcklbw %xmm5,%xmm2 \n" |
| "punpcklbw %xmm5,%xmm3 \n" |
| |
| "2:" |
| "movdqa (%eax),%xmm0 \n" |
| "lea (%eax,%edx,1),%eax \n" |
| "movhlps %xmm0,%xmm1 \n" |
| "punpcklbw %xmm5,%xmm0 \n" |
| "punpcklbw %xmm5,%xmm1 \n" |
| "paddusw %xmm0,%xmm2 \n" |
| "paddusw %xmm1,%xmm3 \n" |
| "sub $0x1,%ebp \n" |
| "ja 2b \n" |
| |
| "movdqa %xmm2,(%edi) \n" |
| "movdqa %xmm3,0x10(%edi) \n" |
| "lea 0x20(%edi),%edi \n" |
| "lea 0x10(%esi),%esi \n" |
| "sub $0x10,%ecx \n" |
| "ja 1b \n" |
| "popa \n" |
| "ret \n" |
| ); |
| |
| // Bilinear row filtering combines 16x2 -> 16x1. SSE2 version |
| #define HAS_SCALEFILTERROWS_SSE2 |
| extern "C" void ScaleFilterRows_SSE2(uint8* dst_ptr, |
| const uint8* src_ptr, int src_stride, |
| int dst_width, int source_y_fraction); |
| asm( |
| DECLARE_FUNCTION(ScaleFilterRows_SSE2) |
| "push %esi \n" |
| "push %edi \n" |
| "mov 0xc(%esp),%edi \n" |
| "mov 0x10(%esp),%esi \n" |
| "mov 0x14(%esp),%edx \n" |
| "mov 0x18(%esp),%ecx \n" |
| "mov 0x1c(%esp),%eax \n" |
| "cmp $0x0,%eax \n" |
| "je 2f \n" |
| "cmp $0x80,%eax \n" |
| "je 3f \n" |
| "movd %eax,%xmm6 \n" |
| "punpcklwd %xmm6,%xmm6 \n" |
| "pshufd $0x0,%xmm6,%xmm6 \n" |
| "neg %eax \n" |
| "add $0x100,%eax \n" |
| "movd %eax,%xmm5 \n" |
| "punpcklwd %xmm5,%xmm5 \n" |
| "pshufd $0x0,%xmm5,%xmm5 \n" |
| "pxor %xmm7,%xmm7 \n" |
| |
| "1:" |
| "movdqa (%esi),%xmm0 \n" |
| "movdqa (%esi,%edx,1),%xmm2 \n" |
| "lea 0x10(%esi),%esi \n" |
| "movdqa %xmm0,%xmm1 \n" |
| "movdqa %xmm2,%xmm3 \n" |
| "punpcklbw %xmm7,%xmm0 \n" |
| "punpcklbw %xmm7,%xmm2 \n" |
| "punpckhbw %xmm7,%xmm1 \n" |
| "punpckhbw %xmm7,%xmm3 \n" |
| "pmullw %xmm5,%xmm0 \n" |
| "pmullw %xmm5,%xmm1 \n" |
| "pmullw %xmm6,%xmm2 \n" |
| "pmullw %xmm6,%xmm3 \n" |
| "paddusw %xmm2,%xmm0 \n" |
| "paddusw %xmm3,%xmm1 \n" |
| "psrlw $0x8,%xmm0 \n" |
| "psrlw $0x8,%xmm1 \n" |
| "packuswb %xmm1,%xmm0 \n" |
| "movdqa %xmm0,(%edi) \n" |
| "lea 0x10(%edi),%edi \n" |
| "sub $0x10,%ecx \n" |
| "ja 1b \n" |
| "mov -0x1(%edi),%al \n" |
| "mov %al,(%edi) \n" |
| "pop %edi \n" |
| "pop %esi \n" |
| "ret \n" |
| |
| "2:" |
| "movdqa (%esi),%xmm0 \n" |
| "lea 0x10(%esi),%esi \n" |
| "movdqa %xmm0,(%edi) \n" |
| "lea 0x10(%edi),%edi \n" |
| "sub $0x10,%ecx \n" |
| "ja 2b \n" |
| |
| "mov -0x1(%edi),%al \n" |
| "mov %al,(%edi) \n" |
| "pop %edi \n" |
| "pop %esi \n" |
| "ret \n" |
| |
| "3:" |
| "movdqa (%esi),%xmm0 \n" |
| "movdqa (%esi,%edx,1),%xmm2 \n" |
| "lea 0x10(%esi),%esi \n" |
| "pavgb %xmm2,%xmm0 \n" |
| "movdqa %xmm0,(%edi) \n" |
| "lea 0x10(%edi),%edi \n" |
| "sub $0x10,%ecx \n" |
| "ja 3b \n" |
| |
| "mov -0x1(%edi),%al \n" |
| "mov %al,(%edi) \n" |
| "pop %edi \n" |
| "pop %esi \n" |
| "ret \n" |
| ); |
| |
| // Bilinear row filtering combines 16x2 -> 16x1. SSSE3 version |
| #define HAS_SCALEFILTERROWS_SSSE3 |
| extern "C" void ScaleFilterRows_SSSE3(uint8* dst_ptr, |
| const uint8* src_ptr, int src_stride, |
| int dst_width, int source_y_fraction); |
| asm( |
| DECLARE_FUNCTION(ScaleFilterRows_SSSE3) |
| "push %esi \n" |
| "push %edi \n" |
| "mov 0xc(%esp),%edi \n" |
| "mov 0x10(%esp),%esi \n" |
| "mov 0x14(%esp),%edx \n" |
| "mov 0x18(%esp),%ecx \n" |
| "mov 0x1c(%esp),%eax \n" |
| "cmp $0x0,%eax \n" |
| "je 2f \n" |
| "cmp $0x80,%eax \n" |
| "je 3f \n" |
| "shr %eax \n" |
| "mov %al,%ah \n" |
| "neg %al \n" |
| "add $0x80,%al \n" |
| "movd %eax,%xmm5 \n" |
| "punpcklwd %xmm5,%xmm5 \n" |
| "pshufd $0x0,%xmm5,%xmm5 \n" |
| |
| "1:" |
| "movdqa (%esi),%xmm0 \n" |
| "movdqa (%esi,%edx,1),%xmm2 \n" |
| "lea 0x10(%esi),%esi \n" |
| "movdqa %xmm0,%xmm1 \n" |
| "punpcklbw %xmm2,%xmm0 \n" |
| "punpckhbw %xmm2,%xmm1 \n" |
| "pmaddubsw %xmm5,%xmm0 \n" |
| "pmaddubsw %xmm5,%xmm1 \n" |
| "psrlw $0x7,%xmm0 \n" |
| "psrlw $0x7,%xmm1 \n" |
| "packuswb %xmm1,%xmm0 \n" |
| "movdqa %xmm0,(%edi) \n" |
| "lea 0x10(%edi),%edi \n" |
| "sub $0x10,%ecx \n" |
| "ja 1b \n" |
| "mov -0x1(%edi),%al \n" |
| "mov %al,(%edi) \n" |
| "pop %edi \n" |
| "pop %esi \n" |
| "ret \n" |
| |
| "2:" |
| "movdqa (%esi),%xmm0 \n" |
| "lea 0x10(%esi),%esi \n" |
| "movdqa %xmm0,(%edi) \n" |
| "lea 0x10(%edi),%edi \n" |
| "sub $0x10,%ecx \n" |
| "ja 2b \n" |
| "mov -0x1(%edi),%al \n" |
| "mov %al,(%edi) \n" |
| "pop %edi \n" |
| "pop %esi \n" |
| "ret \n" |
| |
| "3:" |
| "movdqa (%esi),%xmm0 \n" |
| "movdqa (%esi,%edx,1),%xmm2 \n" |
| "lea 0x10(%esi),%esi \n" |
| "pavgb %xmm2,%xmm0 \n" |
| "movdqa %xmm0,(%edi) \n" |
| "lea 0x10(%edi),%edi \n" |
| "sub $0x10,%ecx \n" |
| "ja 3b \n" |
| "mov -0x1(%edi),%al \n" |
| "mov %al,(%edi) \n" |
| "pop %edi \n" |
| "pop %esi \n" |
| "ret \n" |
| ); |
| |
| #elif defined(__x86_64__) |
| static void ScaleRowDown8Int_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "lea (%3,%3,2),%%r10 \n" |
| "pxor %%xmm7,%%xmm7 \n" |
| "1:" |
| "movdqa (%0),%%xmm0 \n" |
| "movdqa 0x10(%0),%%xmm1 \n" |
| "movdqa (%0,%3,1),%%xmm2 \n" |
| "movdqa 0x10(%0,%3,1),%%xmm3 \n" |
| "pavgb %%xmm2,%%xmm0 \n" |
| "pavgb %%xmm3,%%xmm1 \n" |
| "movdqa (%0,%3,2),%%xmm2 \n" |
| "movdqa 0x10(%0,%3,2),%%xmm3 \n" |
| "movdqa (%0,%%r10,1),%%xmm4 \n" |
| "movdqa 0x10(%0,%%r10,1),%%xmm5 \n" |
| "lea (%0,%3,4),%%r11 \n" |
| "lea 0x20(%0),%0 \n" |
| "pavgb %%xmm4,%%xmm2 \n" |
| "pavgb %%xmm5,%%xmm3 \n" |
| "pavgb %%xmm2,%%xmm0 \n" |
| "pavgb %%xmm3,%%xmm1 \n" |
| "movdqa 0x0(%%r11),%%xmm2 \n" |
| "movdqa 0x10(%%r11),%%xmm3 \n" |
| "movdqa 0x0(%%r11,%3,1),%%xmm4 \n" |
| "movdqa 0x10(%%r11,%3,1),%%xmm5 \n" |
| "pavgb %%xmm4,%%xmm2 \n" |
| "pavgb %%xmm5,%%xmm3 \n" |
| "movdqa 0x0(%%r11,%3,2),%%xmm4 \n" |
| "movdqa 0x10(%%r11,%3,2),%%xmm5 \n" |
| "movdqa 0x0(%%r11,%%r10,1),%%xmm6 \n" |
| "pavgb %%xmm6,%%xmm4 \n" |
| "movdqa 0x10(%%r11,%%r10,1),%%xmm6 \n" |
| "pavgb %%xmm6,%%xmm5 \n" |
| "pavgb %%xmm4,%%xmm2 \n" |
| "pavgb %%xmm5,%%xmm3 \n" |
| "pavgb %%xmm2,%%xmm0 \n" |
| "pavgb %%xmm3,%%xmm1 \n" |
| "psadbw %%xmm7,%%xmm0 \n" |
| "psadbw %%xmm7,%%xmm1 \n" |
| "pshufd $0xd8,%%xmm0,%%xmm0 \n" |
| "pshufd $0x8d,%%xmm1,%%xmm1 \n" |
| "por %%xmm1,%%xmm0 \n" |
| "psrlw $0x3,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "movd %%xmm0,(%1) \n" |
| "lea 0x4(%1),%1 \n" |
| "sub $0x4,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : "r"(static_cast<intptr_t>(src_stride)) // %3 |
| : "memory", "cc", "r10", "r11", "xmm6", "xmm7" |
| ); |
| } |
| |
| #define HAS_SCALEROWDOWN34_SSSE3 |
| static void ScaleRowDown34_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "movdqa (%3),%%xmm3 \n" |
| "movdqa (%4),%%xmm4 \n" |
| "movdqa (%5),%%xmm5 \n" |
| "1:" |
| "movdqa (%0),%%xmm0 \n" |
| "movdqa 0x10(%0),%%xmm2 \n" |
| "lea 0x20(%0),%0 \n" |
| "movdqa %%xmm2,%%xmm1 \n" |
| "palignr $0x8,%%xmm0,%%xmm1 \n" |
| "pshufb %%xmm3,%%xmm0 \n" |
| "pshufb %%xmm4,%%xmm1 \n" |
| "pshufb %%xmm5,%%xmm2 \n" |
| "movq %%xmm0,(%1) \n" |
| "movq %%xmm1,0x8(%1) \n" |
| "movq %%xmm2,0x10(%1) \n" |
| "lea 0x18(%1),%1 \n" |
| "sub $0x18,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : "r"(_shuf0), // %3 |
| "r"(_shuf1), // %4 |
| "r"(_shuf2) // %5 |
| : "memory", "cc" |
| ); |
| } |
| |
| static void ScaleRowDown34_1_Int_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "movdqa (%4),%%xmm2 \n" // _shuf01 |
| "movdqa (%5),%%xmm3 \n" // _shuf11 |
| "movdqa (%6),%%xmm4 \n" // _shuf21 |
| "movdqa (%7),%%xmm5 \n" // _madd01 |
| "movdqa (%8),%%xmm6 \n" // _madd11 |
| "movdqa (%9),%%xmm7 \n" // _round34 |
| "movdqa (%10),%%xmm8 \n" // _madd21 |
| "1:" |
| "movdqa (%0),%%xmm0 \n" |
| "movdqa (%0,%3),%%xmm1 \n" |
| "pavgb %%xmm1,%%xmm0 \n" |
| "pshufb %%xmm2,%%xmm0 \n" |
| "pmaddubsw %%xmm5,%%xmm0 \n" |
| "paddsw %%xmm7,%%xmm0 \n" |
| "psrlw $0x2,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "movq %%xmm0,(%1) \n" |
| "movdqu 0x8(%0),%%xmm0 \n" |
| "movdqu 0x8(%0,%3),%%xmm1 \n" |
| "pavgb %%xmm1,%%xmm0 \n" |
| "pshufb %%xmm3,%%xmm0 \n" |
| "pmaddubsw %%xmm6,%%xmm0 \n" |
| "paddsw %%xmm7,%%xmm0 \n" |
| "psrlw $0x2,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "movq %%xmm0,0x8(%1) \n" |
| "movdqa 0x10(%0),%%xmm0 \n" |
| "movdqa 0x10(%0,%3),%%xmm1 \n" |
| "lea 0x20(%0),%0 \n" |
| "pavgb %%xmm1,%%xmm0 \n" |
| "pshufb %%xmm4,%%xmm0 \n" |
| "pmaddubsw %%xmm8,%%xmm0 \n" |
| "paddsw %%xmm7,%%xmm0 \n" |
| "psrlw $0x2,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "movq %%xmm0,0x10(%1) \n" |
| "lea 0x18(%1),%1 \n" |
| "sub $0x18,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : "r"(static_cast<intptr_t>(src_stride)), // %3 |
| "r"(_shuf01), // %4 |
| "r"(_shuf11), // %5 |
| "r"(_shuf21), // %6 |
| "r"(_madd01), // %7 |
| "r"(_madd11), // %8 |
| "r"(_round34), // %9 |
| "r"(_madd21) // %10 |
| : "memory", "cc", "xmm6", "xmm7", "xmm8" |
| ); |
| } |
| |
| static void ScaleRowDown34_0_Int_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "movdqa (%4),%%xmm2 \n" // _shuf01 |
| "movdqa (%5),%%xmm3 \n" // _shuf11 |
| "movdqa (%6),%%xmm4 \n" // _shuf21 |
| "movdqa (%7),%%xmm5 \n" // _madd01 |
| "movdqa (%8),%%xmm6 \n" // _madd11 |
| "movdqa (%9),%%xmm7 \n" // _round34 |
| "movdqa (%10),%%xmm8 \n" // _madd21 |
| "1:" |
| "movdqa (%0),%%xmm0 \n" |
| "movdqa (%0,%3,1),%%xmm1 \n" |
| "pavgb %%xmm0,%%xmm1 \n" |
| "pavgb %%xmm1,%%xmm0 \n" |
| "pshufb %%xmm2,%%xmm0 \n" |
| "pmaddubsw %%xmm5,%%xmm0 \n" |
| "paddsw %%xmm7,%%xmm0 \n" |
| "psrlw $0x2,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "movq %%xmm0,(%1) \n" |
| "movdqu 0x8(%0),%%xmm0 \n" |
| "movdqu 0x8(%0,%3,1),%%xmm1 \n" |
| "pavgb %%xmm0,%%xmm1 \n" |
| "pavgb %%xmm1,%%xmm0 \n" |
| "pshufb %%xmm3,%%xmm0 \n" |
| "pmaddubsw %%xmm6,%%xmm0 \n" |
| "paddsw %%xmm7,%%xmm0 \n" |
| "psrlw $0x2,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "movq %%xmm0,0x8(%1) \n" |
| "movdqa 0x10(%0),%%xmm0 \n" |
| "movdqa 0x10(%0,%3,1),%%xmm1 \n" |
| "lea 0x20(%0),%0 \n" |
| "pavgb %%xmm0,%%xmm1 \n" |
| "pavgb %%xmm1,%%xmm0 \n" |
| "pshufb %%xmm4,%%xmm0 \n" |
| "pmaddubsw %%xmm8,%%xmm0 \n" |
| "paddsw %%xmm7,%%xmm0 \n" |
| "psrlw $0x2,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "movq %%xmm0,0x10(%1) \n" |
| "lea 0x18(%1),%1 \n" |
| "sub $0x18,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : "r"(static_cast<intptr_t>(src_stride)), // %3 |
| "r"(_shuf01), // %4 |
| "r"(_shuf11), // %5 |
| "r"(_shuf21), // %6 |
| "r"(_madd01), // %7 |
| "r"(_madd11), // %8 |
| "r"(_round34), // %9 |
| "r"(_madd21) // %10 |
| : "memory", "cc", "xmm6", "xmm7", "xmm8" |
| ); |
| } |
| |
| #define HAS_SCALEROWDOWN38_SSSE3 |
| static void ScaleRowDown38_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "movdqa (%3),%%xmm4 \n" |
| "movdqa (%4),%%xmm5 \n" |
| "1:" |
| "movdqa (%0),%%xmm0 \n" |
| "movdqa 0x10(%0),%%xmm1 \n" |
| "lea 0x20(%0),%0 \n" |
| "pshufb %%xmm4,%%xmm0 \n" |
| "pshufb %%xmm5,%%xmm1 \n" |
| "paddusb %%xmm1,%%xmm0 \n" |
| "movq %%xmm0,(%1) \n" |
| "movhlps %%xmm0,%%xmm1 \n" |
| "movd %%xmm1,0x8(%1) \n" |
| "lea 0xc(%1),%1 \n" |
| "sub $0xc,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : "r"(_shuf38a), // %3 |
| "r"(_shuf38b) // %4 |
| : "memory", "cc" |
| ); |
| } |
| |
| static void ScaleRowDown38_3_Int_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "movdqa (%4),%%xmm4 \n" |
| "movdqa (%5),%%xmm5 \n" |
| "movdqa (%6),%%xmm6 \n" |
| "pxor %%xmm7,%%xmm7 \n" |
| "1:" |
| "movdqa (%0),%%xmm0 \n" |
| "movdqa (%0,%3,1),%%xmm2 \n" |
| "movhlps %%xmm0,%%xmm1 \n" |
| "movhlps %%xmm2,%%xmm3 \n" |
| "punpcklbw %%xmm7,%%xmm0 \n" |
| "punpcklbw %%xmm7,%%xmm1 \n" |
| "punpcklbw %%xmm7,%%xmm2 \n" |
| "punpcklbw %%xmm7,%%xmm3 \n" |
| "paddusw %%xmm2,%%xmm0 \n" |
| "paddusw %%xmm3,%%xmm1 \n" |
| "movdqa (%0,%3,2),%%xmm2 \n" |
| "lea 0x10(%0),%0 \n" |
| "movhlps %%xmm2,%%xmm3 \n" |
| "punpcklbw %%xmm7,%%xmm2 \n" |
| "punpcklbw %%xmm7,%%xmm3 \n" |
| "paddusw %%xmm2,%%xmm0 \n" |
| "paddusw %%xmm3,%%xmm1 \n" |
| "movdqa %%xmm0,%%xmm2 \n" |
| "psrldq $0x2,%%xmm0 \n" |
| "paddusw %%xmm0,%%xmm2 \n" |
| "psrldq $0x2,%%xmm0 \n" |
| "paddusw %%xmm0,%%xmm2 \n" |
| "pshufb %%xmm4,%%xmm2 \n" |
| "movdqa %%xmm1,%%xmm3 \n" |
| "psrldq $0x2,%%xmm1 \n" |
| "paddusw %%xmm1,%%xmm3 \n" |
| "psrldq $0x2,%%xmm1 \n" |
| "paddusw %%xmm1,%%xmm3 \n" |
| "pshufb %%xmm5,%%xmm3 \n" |
| "paddusw %%xmm3,%%xmm2 \n" |
| "pmulhuw %%xmm6,%%xmm2 \n" |
| "packuswb %%xmm2,%%xmm2 \n" |
| "movd %%xmm2,(%1) \n" |
| "pextrw $0x2,%%xmm2,%%eax \n" |
| "mov %%ax,0x4(%1) \n" |
| "lea 0x6(%1),%1 \n" |
| "sub $0x6,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : "r"(static_cast<intptr_t>(src_stride)), // %3 |
| "r"(_shufac0), // %4 |
| "r"(_shufac3), // %5 |
| "r"(_scaleac3) // %6 |
| : "memory", "cc", "rax", "xmm6", "xmm7" |
| ); |
| } |
| |
| static void ScaleRowDown38_2_Int_SSSE3(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| asm volatile ( |
| "movdqa (%4),%%xmm4 \n" |
| "movdqa (%5),%%xmm5 \n" |
| "movdqa (%6),%%xmm6 \n" |
| "movdqa (%7),%%xmm7 \n" |
| "1:" |
| "movdqa (%0),%%xmm2 \n" |
| "pavgb (%0,%3,1),%%xmm2 \n" |
| "lea 0x10(%0),%0 \n" |
| "movdqa %%xmm2,%%xmm0 \n" |
| "pshufb %%xmm4,%%xmm0 \n" |
| "movdqa %%xmm2,%%xmm1 \n" |
| "pshufb %%xmm5,%%xmm1 \n" |
| "paddusw %%xmm1,%%xmm0 \n" |
| "pshufb %%xmm6,%%xmm2 \n" |
| "paddusw %%xmm2,%%xmm0 \n" |
| "pmulhuw %%xmm7,%%xmm0 \n" |
| "packuswb %%xmm0,%%xmm0 \n" |
| "movd %%xmm0,(%1) \n" |
| "pextrw $0x2,%%xmm0,%%eax \n" |
| "mov %%ax,0x4(%1) \n" |
| "lea 0x6(%1),%1 \n" |
| "sub $0x6,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : "r"(static_cast<intptr_t>(src_stride)), // %3 |
| "r"(_shufab0), // %4 |
| "r"(_shufab1), // %5 |
| "r"(_shufab2), // %6 |
| "r"(_scaleab2) // %7 |
| : "memory", "cc", "rax", "xmm6", "xmm7" |
| ); |
| } |
| |
| #define HAS_SCALEADDROWS_SSE2 |
| static void ScaleAddRows_SSE2(const uint8* src_ptr, int src_stride, |
| uint16* dst_ptr, int src_width, |
| int src_height) { |
| asm volatile ( |
| "pxor %%xmm5,%%xmm5 \n" |
| "1:" |
| "movdqa (%0),%%xmm2 \n" |
| "lea (%0,%4,1),%%r10 \n" |
| "movhlps %%xmm2,%%xmm3 \n" |
| "lea -0x1(%3),%%r11 \n" |
| "punpcklbw %%xmm5,%%xmm2 \n" |
| "punpcklbw %%xmm5,%%xmm3 \n" |
| |
| "2:" |
| "movdqa (%%r10),%%xmm0 \n" |
| "lea (%%r10,%4,1),%%r10 \n" |
| "movhlps %%xmm0,%%xmm1 \n" |
| "punpcklbw %%xmm5,%%xmm0 \n" |
| "punpcklbw %%xmm5,%%xmm1 \n" |
| "paddusw %%xmm0,%%xmm2 \n" |
| "paddusw %%xmm1,%%xmm3 \n" |
| "sub $0x1,%%r11 \n" |
| "ja 2b \n" |
| |
| "movdqa %%xmm2,(%1) \n" |
| "movdqa %%xmm3,0x10(%1) \n" |
| "lea 0x20(%1),%1 \n" |
| "lea 0x10(%0),%0 \n" |
| "sub $0x10,%2 \n" |
| "ja 1b \n" |
| : "+r"(src_ptr), // %0 |
| "+r"(dst_ptr), // %1 |
| "+r"(src_width), // %2 |
| "+r"(src_height) // %3 |
| : "r"(static_cast<intptr_t>(src_stride)) // %4 |
| : "memory", "cc", "r10", "r11" |
| ); |
| } |
| |
| // Bilinear row filtering combines 16x2 -> 16x1. SSE2 version |
| #define HAS_SCALEFILTERROWS_SSE2 |
| static void ScaleFilterRows_SSE2(uint8* dst_ptr, |
| const uint8* src_ptr, int src_stride, |
| int dst_width, int source_y_fraction) { |
| if (source_y_fraction == 0) { |
| asm volatile ( |
| "1:" |
| "movdqa (%1),%%xmm0 \n" |
| "lea 0x10(%1),%1 \n" |
| "movdqa %%xmm0,(%0) \n" |
| "lea 0x10(%0),%0 \n" |
| "sub $0x10,%2 \n" |
| "ja 1b \n" |
| "mov -0x1(%0),%%al \n" |
| "mov %%al,(%0) \n" |
| : "+r"(dst_ptr), // %0 |
| "+r"(src_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : |
| : "memory", "cc", "rax" |
| ); |
| return; |
| } else if (source_y_fraction == 128) { |
| asm volatile ( |
| "1:" |
| "movdqa (%1),%%xmm0 \n" |
| "movdqa (%1,%3,1),%%xmm2 \n" |
| "lea 0x10(%1),%1 \n" |
| "pavgb %%xmm2,%%xmm0 \n" |
| "movdqa %%xmm0,(%0) \n" |
| "lea 0x10(%0),%0 \n" |
| "sub $0x10,%2 \n" |
| "ja 1b \n" |
| "mov -0x1(%0),%%al \n" |
| "mov %%al,(%0) \n" |
| : "+r"(dst_ptr), // %0 |
| "+r"(src_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : "r"(static_cast<intptr_t>(src_stride)) // %3 |
| : "memory", "cc", "rax" |
| ); |
| return; |
| } else { |
| asm volatile ( |
| "mov %3,%%eax \n" |
| "movd %%eax,%%xmm6 \n" |
| "punpcklwd %%xmm6,%%xmm6 \n" |
| "pshufd $0x0,%%xmm6,%%xmm6 \n" |
| "neg %%eax \n" |
| "add $0x100,%%eax \n" |
| "movd %%eax,%%xmm5 \n" |
| "punpcklwd %%xmm5,%%xmm5 \n" |
| "pshufd $0x0,%%xmm5,%%xmm5 \n" |
| "pxor %%xmm7,%%xmm7 \n" |
| "1:" |
| "movdqa (%1),%%xmm0 \n" |
| "movdqa (%1,%4,1),%%xmm2 \n" |
| "lea 0x10(%1),%1 \n" |
| "movdqa %%xmm0,%%xmm1 \n" |
| "movdqa %%xmm2,%%xmm3 \n" |
| "punpcklbw %%xmm7,%%xmm0 \n" |
| "punpcklbw %%xmm7,%%xmm2 \n" |
| "punpckhbw %%xmm7,%%xmm1 \n" |
| "punpckhbw %%xmm7,%%xmm3 \n" |
| "pmullw %%xmm5,%%xmm0 \n" |
| "pmullw %%xmm5,%%xmm1 \n" |
| "pmullw %%xmm6,%%xmm2 \n" |
| "pmullw %%xmm6,%%xmm3 \n" |
| "paddusw %%xmm2,%%xmm0 \n" |
| "paddusw %%xmm3,%%xmm1 \n" |
| "psrlw $0x8,%%xmm0 \n" |
| "psrlw $0x8,%%xmm1 \n" |
| "packuswb %%xmm1,%%xmm0 \n" |
| "movdqa %%xmm0,(%0) \n" |
| "lea 0x10(%0),%0 \n" |
| "sub $0x10,%2 \n" |
| "ja 1b \n" |
| "mov -0x1(%0),%%al \n" |
| "mov %%al,(%0) \n" |
| : "+r"(dst_ptr), // %0 |
| "+r"(src_ptr), // %1 |
| "+r"(dst_width), // %2 |
| "+r"(source_y_fraction) // %3 |
| : "r"(static_cast<intptr_t>(src_stride)) // %4 |
| : "memory", "cc", "rax", "xmm6", "xmm7" |
| ); |
| } |
| return; |
| } |
| |
| // Bilinear row filtering combines 16x2 -> 16x1. SSSE3 version |
| #define HAS_SCALEFILTERROWS_SSSE3 |
| static void ScaleFilterRows_SSSE3(uint8* dst_ptr, |
| const uint8* src_ptr, int src_stride, |
| int dst_width, int source_y_fraction) { |
| if (source_y_fraction == 0) { |
| asm volatile ( |
| "1:" |
| "movdqa (%1),%%xmm0 \n" |
| "lea 0x10(%1),%1 \n" |
| "movdqa %%xmm0,(%0) \n" |
| "lea 0x10(%0),%0 \n" |
| "sub $0x10,%2 \n" |
| "ja 1b \n" |
| "mov -0x1(%0),%%al \n" |
| "mov %%al,(%0) \n" |
| : "+r"(dst_ptr), // %0 |
| "+r"(src_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : |
| : "memory", "cc", "rax" |
| ); |
| return; |
| } else if (source_y_fraction == 128) { |
| asm volatile ( |
| "1:" |
| "movdqa (%1),%%xmm0 \n" |
| "movdqa (%1,%3,1),%%xmm2 \n" |
| "lea 0x10(%1),%1 \n" |
| "pavgb %%xmm2,%%xmm0 \n" |
| "movdqa %%xmm0,(%0) \n" |
| "lea 0x10(%0),%0 \n" |
| "sub $0x10,%2 \n" |
| "ja 1b \n" |
| "mov -0x1(%0),%%al \n" |
| "mov %%al,(%0) \n" |
| : "+r"(dst_ptr), // %0 |
| "+r"(src_ptr), // %1 |
| "+r"(dst_width) // %2 |
| : "r"(static_cast<intptr_t>(src_stride)) // %3 |
| : "memory", "cc", "rax" |
| ); |
| return; |
| } else { |
| asm volatile ( |
| "mov %3,%%eax \n" |
| "shr %%eax \n" |
| "mov %%al,%%ah \n" |
| "neg %%al \n" |
| "add $0x80,%%al \n" |
| "movd %%eax,%%xmm5 \n" |
| "punpcklwd %%xmm5,%%xmm5 \n" |
| "pshufd $0x0,%%xmm5,%%xmm5 \n" |
| "1:" |
| "movdqa (%1),%%xmm0 \n" |
| "movdqa (%1,%4,1),%%xmm2 \n" |
| "lea 0x10(%1),%1 \n" |
| "movdqa %%xmm0,%%xmm1 \n" |
| "punpcklbw %%xmm2,%%xmm0 \n" |
| "punpckhbw %%xmm2,%%xmm1 \n" |
| "pmaddubsw %%xmm5,%%xmm0 \n" |
| "pmaddubsw %%xmm5,%%xmm1 \n" |
| "psrlw $0x7,%%xmm0 \n" |
| "psrlw $0x7,%%xmm1 \n" |
| "packuswb %%xmm1,%%xmm0 \n" |
| "movdqa %%xmm0,(%0) \n" |
| "lea 0x10(%0),%0 \n" |
| "sub $0x10,%2 \n" |
| "ja 1b \n" |
| "mov -0x1(%0),%%al \n" |
| "mov %%al,(%0) \n" |
| : "+r"(dst_ptr), // %0 |
| "+r"(src_ptr), // %1 |
| "+r"(dst_width), // %2 |
| "+r"(source_y_fraction) // %3 |
| : "r"(static_cast<intptr_t>(src_stride)) // %4 |
| : "memory", "cc", "rax" |
| ); |
| } |
| return; |
| } |
| #endif |
| #endif |
| |
| // CPU agnostic row functions |
| static void ScaleRowDown2_C(const uint8* src_ptr, int, |
| uint8* dst, int dst_width) { |
| for (int x = 0; x < dst_width; ++x) { |
| *dst++ = *src_ptr; |
| src_ptr += 2; |
| } |
| } |
| |
| void ScaleRowDown2Int_C(const uint8* src_ptr, int src_stride, |
| uint8* dst, int dst_width) { |
| for (int x = 0; x < dst_width; ++x) { |
| *dst++ = (src_ptr[0] + src_ptr[1] + |
| src_ptr[src_stride] + src_ptr[src_stride + 1] + 2) >> 2; |
| src_ptr += 2; |
| } |
| } |
| |
| static void ScaleRowDown4_C(const uint8* src_ptr, int, |
| uint8* dst, int dst_width) { |
| for (int x = 0; x < dst_width; ++x) { |
| *dst++ = *src_ptr; |
| src_ptr += 4; |
| } |
| } |
| |
| static void ScaleRowDown4Int_C(const uint8* src_ptr, int src_stride, |
| uint8* dst, int dst_width) { |
| for (int x = 0; x < dst_width; ++x) { |
| *dst++ = (src_ptr[0] + src_ptr[1] + src_ptr[2] + src_ptr[3] + |
| src_ptr[src_stride + 0] + src_ptr[src_stride + 1] + |
| src_ptr[src_stride + 2] + src_ptr[src_stride + 3] + |
| src_ptr[src_stride * 2 + 0] + src_ptr[src_stride * 2 + 1] + |
| src_ptr[src_stride * 2 + 2] + src_ptr[src_stride * 2 + 3] + |
| src_ptr[src_stride * 3 + 0] + src_ptr[src_stride * 3 + 1] + |
| src_ptr[src_stride * 3 + 2] + src_ptr[src_stride * 3 + 3] + |
| 8) >> 4; |
| src_ptr += 4; |
| } |
| } |
| |
| // 640 output pixels is enough to allow 5120 input pixels with 1/8 scale down. |
| // Keeping the total buffer under 4096 bytes avoids a stackcheck, saving 4% cpu. |
| static const int kMaxOutputWidth = 640; |
| static const int kMaxRow12 = kMaxOutputWidth * 2; |
| |
| static void ScaleRowDown8_C(const uint8* src_ptr, int, |
| uint8* dst, int dst_width) { |
| for (int x = 0; x < dst_width; ++x) { |
| *dst++ = *src_ptr; |
| src_ptr += 8; |
| } |
| } |
| |
| // Note calling code checks width is less than max and if not |
| // uses ScaleRowDown8_C instead. |
| static void ScaleRowDown8Int_C(const uint8* src_ptr, int src_stride, |
| uint8* dst, int dst_width) { |
| ALIGN16(uint8 src_row[kMaxRow12 * 2]); |
| assert(dst_width <= kMaxOutputWidth); |
| ScaleRowDown4Int_C(src_ptr, src_stride, src_row, dst_width * 2); |
| ScaleRowDown4Int_C(src_ptr + src_stride * 4, src_stride, |
| src_row + kMaxOutputWidth, |
| dst_width * 2); |
| ScaleRowDown2Int_C(src_row, kMaxOutputWidth, dst, dst_width); |
| } |
| |
| static void ScaleRowDown34_C(const uint8* src_ptr, int, |
| uint8* dst, int dst_width) { |
| assert((dst_width % 3 == 0) && (dst_width > 0)); |
| uint8* dend = dst + dst_width; |
| do { |
| dst[0] = src_ptr[0]; |
| dst[1] = src_ptr[1]; |
| dst[2] = src_ptr[3]; |
| dst += 3; |
| src_ptr += 4; |
| } while (dst < dend); |
| } |
| |
| // Filter rows 0 and 1 together, 3 : 1 |
| static void ScaleRowDown34_0_Int_C(const uint8* src_ptr, int src_stride, |
| uint8* d, int dst_width) { |
| assert((dst_width % 3 == 0) && (dst_width > 0)); |
| uint8* dend = d + dst_width; |
| const uint8* s = src_ptr; |
| const uint8* t = src_ptr + src_stride; |
| do { |
| uint8 a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2; |
| uint8 a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1; |
| uint8 a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2; |
| uint8 b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2; |
| uint8 b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1; |
| uint8 b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2; |
| d[0] = (a0 * 3 + b0 + 2) >> 2; |
| d[1] = (a1 * 3 + b1 + 2) >> 2; |
| d[2] = (a2 * 3 + b2 + 2) >> 2; |
| d += 3; |
| s += 4; |
| t += 4; |
| } while (d < dend); |
| } |
| |
| // Filter rows 1 and 2 together, 1 : 1 |
| static void ScaleRowDown34_1_Int_C(const uint8* src_ptr, int src_stride, |
| uint8* d, int dst_width) { |
| assert((dst_width % 3 == 0) && (dst_width > 0)); |
| uint8* dend = d + dst_width; |
| const uint8* s = src_ptr; |
| const uint8* t = src_ptr + src_stride; |
| do { |
| uint8 a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2; |
| uint8 a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1; |
| uint8 a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2; |
| uint8 b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2; |
| uint8 b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1; |
| uint8 b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2; |
| d[0] = (a0 + b0 + 1) >> 1; |
| d[1] = (a1 + b1 + 1) >> 1; |
| d[2] = (a2 + b2 + 1) >> 1; |
| d += 3; |
| s += 4; |
| t += 4; |
| } while (d < dend); |
| } |
| |
| #if defined(HAS_SCALEFILTERROWS_SSE2) |
| // Filter row to 3/4 |
| static void ScaleFilterCols34_C(uint8* dst_ptr, const uint8* src_ptr, |
| int dst_width) { |
| assert((dst_width % 3 == 0) && (dst_width > 0)); |
| uint8* dend = dst_ptr + dst_width; |
| const uint8* s = src_ptr; |
| do { |
| dst_ptr[0] = (s[0] * 3 + s[1] * 1 + 2) >> 2; |
| dst_ptr[1] = (s[1] * 1 + s[2] * 1 + 1) >> 1; |
| dst_ptr[2] = (s[2] * 1 + s[3] * 3 + 2) >> 2; |
| dst_ptr += 3; |
| s += 4; |
| } while (dst_ptr < dend); |
| } |
| #endif |
| |
| static void ScaleFilterCols_C(uint8* dst_ptr, const uint8* src_ptr, |
| int dst_width, int dx) { |
| int x = 0; |
| for (int j = 0; j < dst_width; ++j) { |
| int xi = x >> 16; |
| int xf1 = x & 0xffff; |
| int xf0 = 65536 - xf1; |
| |
| *dst_ptr++ = (src_ptr[xi] * xf0 + src_ptr[xi + 1] * xf1) >> 16; |
| x += dx; |
| } |
| } |
| |
| static const int kMaxInputWidth = 2560; |
| #if defined(HAS_SCALEFILTERROWS_SSE2) |
| #define HAS_SCALEROWDOWN34_SSE2 |
| // Filter rows 0 and 1 together, 3 : 1 |
| static void ScaleRowDown34_0_Int_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| assert((dst_width % 3 == 0) && (dst_width > 0)); |
| ALIGN16(uint8 row[kMaxInputWidth]); |
| ScaleFilterRows_SSE2(row, src_ptr, src_stride, dst_width * 4 / 3, 256 / 4); |
| ScaleFilterCols34_C(dst_ptr, row, dst_width); |
| } |
| |
| // Filter rows 1 and 2 together, 1 : 1 |
| static void ScaleRowDown34_1_Int_SSE2(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| assert((dst_width % 3 == 0) && (dst_width > 0)); |
| ALIGN16(uint8 row[kMaxInputWidth]); |
| ScaleFilterRows_SSE2(row, src_ptr, src_stride, dst_width * 4 / 3, 256 / 2); |
| ScaleFilterCols34_C(dst_ptr, row, dst_width); |
| } |
| #endif |
| |
| static void ScaleRowDown38_C(const uint8* src_ptr, int, |
| uint8* dst, int dst_width) { |
| assert(dst_width % 3 == 0); |
| for (int x = 0; x < dst_width; x += 3) { |
| dst[0] = src_ptr[0]; |
| dst[1] = src_ptr[3]; |
| dst[2] = src_ptr[6]; |
| dst += 3; |
| src_ptr += 8; |
| } |
| } |
| |
| // 8x3 -> 3x1 |
| static void ScaleRowDown38_3_Int_C(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| assert((dst_width % 3 == 0) && (dst_width > 0)); |
| for (int i = 0; i < dst_width; i+=3) { |
| dst_ptr[0] = (src_ptr[0] + src_ptr[1] + src_ptr[2] + |
| src_ptr[src_stride + 0] + src_ptr[src_stride + 1] + |
| src_ptr[src_stride + 2] + src_ptr[src_stride * 2 + 0] + |
| src_ptr[src_stride * 2 + 1] + src_ptr[src_stride * 2 + 2]) * |
| (65536 / 9) >> 16; |
| dst_ptr[1] = (src_ptr[3] + src_ptr[4] + src_ptr[5] + |
| src_ptr[src_stride + 3] + src_ptr[src_stride + 4] + |
| src_ptr[src_stride + 5] + src_ptr[src_stride * 2 + 3] + |
| src_ptr[src_stride * 2 + 4] + src_ptr[src_stride * 2 + 5]) * |
| (65536 / 9) >> 16; |
| dst_ptr[2] = (src_ptr[6] + src_ptr[7] + |
| src_ptr[src_stride + 6] + src_ptr[src_stride + 7] + |
| src_ptr[src_stride * 2 + 6] + src_ptr[src_stride * 2 + 7]) * |
| (65536 / 6) >> 16; |
| src_ptr += 8; |
| dst_ptr += 3; |
| } |
| } |
| |
| // 8x2 -> 3x1 |
| static void ScaleRowDown38_2_Int_C(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width) { |
| assert((dst_width % 3 == 0) && (dst_width > 0)); |
| for (int i = 0; i < dst_width; i+=3) { |
| dst_ptr[0] = (src_ptr[0] + src_ptr[1] + src_ptr[2] + |
| src_ptr[src_stride + 0] + src_ptr[src_stride + 1] + |
| src_ptr[src_stride + 2]) * (65536 / 6) >> 16; |
| dst_ptr[1] = (src_ptr[3] + src_ptr[4] + src_ptr[5] + |
| src_ptr[src_stride + 3] + src_ptr[src_stride + 4] + |
| src_ptr[src_stride + 5]) * (65536 / 6) >> 16; |
| dst_ptr[2] = (src_ptr[6] + src_ptr[7] + |
| src_ptr[src_stride + 6] + src_ptr[src_stride + 7]) * |
| (65536 / 4) >> 16; |
| src_ptr += 8; |
| dst_ptr += 3; |
| } |
| } |
| |
| // C version 8x2 -> 8x1 |
| static void ScaleFilterRows_C(uint8* dst_ptr, |
| const uint8* src_ptr, int src_stride, |
| int dst_width, int source_y_fraction) { |
| assert(dst_width > 0); |
| int y1_fraction = source_y_fraction; |
| int y0_fraction = 256 - y1_fraction; |
| const uint8* src_ptr1 = src_ptr + src_stride; |
| uint8* end = dst_ptr + dst_width; |
| do { |
| dst_ptr[0] = (src_ptr[0] * y0_fraction + src_ptr1[0] * y1_fraction) >> 8; |
| dst_ptr[1] = (src_ptr[1] * y0_fraction + src_ptr1[1] * y1_fraction) >> 8; |
| dst_ptr[2] = (src_ptr[2] * y0_fraction + src_ptr1[2] * y1_fraction) >> 8; |
| dst_ptr[3] = (src_ptr[3] * y0_fraction + src_ptr1[3] * y1_fraction) >> 8; |
| dst_ptr[4] = (src_ptr[4] * y0_fraction + src_ptr1[4] * y1_fraction) >> 8; |
| dst_ptr[5] = (src_ptr[5] * y0_fraction + src_ptr1[5] * y1_fraction) >> 8; |
| dst_ptr[6] = (src_ptr[6] * y0_fraction + src_ptr1[6] * y1_fraction) >> 8; |
| dst_ptr[7] = (src_ptr[7] * y0_fraction + src_ptr1[7] * y1_fraction) >> 8; |
| src_ptr += 8; |
| src_ptr1 += 8; |
| dst_ptr += 8; |
| } while (dst_ptr < end); |
| dst_ptr[0] = dst_ptr[-1]; |
| } |
| |
| void ScaleAddRows_C(const uint8* src_ptr, int src_stride, |
| uint16* dst_ptr, int src_width, int src_height) { |
| assert(src_width > 0); |
| assert(src_height > 0); |
| for (int x = 0; x < src_width; ++x) { |
| const uint8* s = src_ptr + x; |
| int sum = 0; |
| for (int y = 0; y < src_height; ++y) { |
| sum += s[0]; |
| s += src_stride; |
| } |
| dst_ptr[x] = sum; |
| } |
| } |
| |
| /** |
| * Scale plane, 1/2 |
| * |
| * This is an optimized version for scaling down a plane to 1/2 of |
| * its original size. |
| * |
| */ |
| static void ScalePlaneDown2(int src_width, int src_height, |
| int dst_width, int dst_height, |
| int src_stride, int dst_stride, |
| const uint8* src_ptr, uint8* dst_ptr, |
| FilterMode filtering) { |
| assert(IS_ALIGNED(src_width, 2)); |
| assert(IS_ALIGNED(src_height, 2)); |
| void (*ScaleRowDown2)(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| #if defined(HAS_SCALEROWDOWN2_NEON) |
| if (TestCpuFlag(kCpuHasNEON) && |
| IS_ALIGNED(dst_width, 16)) { |
| ScaleRowDown2 = filtering ? ScaleRowDown2Int_NEON : ScaleRowDown2_NEON; |
| } else |
| #endif |
| #if defined(HAS_SCALEROWDOWN2_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| IS_ALIGNED(dst_width, 16) && |
| IS_ALIGNED(src_ptr, 16) && IS_ALIGNED(src_stride, 16) && |
| IS_ALIGNED(dst_ptr, 16) && IS_ALIGNED(dst_stride, 16)) { |
| ScaleRowDown2 = filtering ? ScaleRowDown2Int_SSE2 : ScaleRowDown2_SSE2; |
| } else |
| #endif |
| { |
| ScaleRowDown2 = filtering ? ScaleRowDown2Int_C : ScaleRowDown2_C; |
| } |
| for (int y = 0; y < dst_height; ++y) { |
| ScaleRowDown2(src_ptr, src_stride, dst_ptr, dst_width); |
| src_ptr += (src_stride << 1); |
| dst_ptr += dst_stride; |
| } |
| } |
| |
| /** |
| * Scale plane, 1/4 |
| * |
| * This is an optimized version for scaling down a plane to 1/4 of |
| * its original size. |
| */ |
| static void ScalePlaneDown4(int src_width, int src_height, |
| int dst_width, int dst_height, |
| int src_stride, int dst_stride, |
| const uint8* src_ptr, uint8* dst_ptr, |
| FilterMode filtering) { |
| assert(IS_ALIGNED(src_width, 4)); |
| assert(IS_ALIGNED(src_height, 4)); |
| void (*ScaleRowDown4)(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| #if defined(HAS_SCALEROWDOWN4_NEON) |
| if (TestCpuFlag(kCpuHasNEON) && |
| IS_ALIGNED(dst_width, 4)) { |
| ScaleRowDown4 = filtering ? ScaleRowDown4Int_NEON : ScaleRowDown4_NEON; |
| } else |
| #endif |
| #if defined(HAS_SCALEROWDOWN4_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| IS_ALIGNED(dst_width, 8) && |
| IS_ALIGNED(src_ptr, 16) && IS_ALIGNED(src_stride, 16) && |
| IS_ALIGNED(dst_ptr, 8) && IS_ALIGNED(dst_stride, 8)) { |
| ScaleRowDown4 = filtering ? ScaleRowDown4Int_SSE2 : ScaleRowDown4_SSE2; |
| } else |
| #endif |
| { |
| ScaleRowDown4 = filtering ? ScaleRowDown4Int_C : ScaleRowDown4_C; |
| } |
| for (int y = 0; y < dst_height; ++y) { |
| ScaleRowDown4(src_ptr, src_stride, dst_ptr, dst_width); |
| src_ptr += (src_stride << 2); |
| dst_ptr += dst_stride; |
| } |
| } |
| |
| /** |
| * Scale plane, 1/8 |
| * |
| * This is an optimized version for scaling down a plane to 1/8 |
| * of its original size. |
| * |
| */ |
| static void ScalePlaneDown8(int src_width, int src_height, |
| int dst_width, int dst_height, |
| int src_stride, int dst_stride, |
| const uint8* src_ptr, uint8* dst_ptr, |
| FilterMode filtering) { |
| assert(IS_ALIGNED(src_width, 8)); |
| assert(IS_ALIGNED(src_height, 8)); |
| void (*ScaleRowDown8)(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| #if defined(HAS_SCALEROWDOWN8_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| IS_ALIGNED(dst_width, 4) && |
| IS_ALIGNED(src_ptr, 16) && IS_ALIGNED(src_stride, 16) && |
| IS_ALIGNED(dst_ptr, 4) && IS_ALIGNED(dst_stride, 4)) { |
| ScaleRowDown8 = filtering ? ScaleRowDown8Int_SSE2 : ScaleRowDown8_SSE2; |
| } else |
| #endif |
| { |
| ScaleRowDown8 = filtering && (dst_width <= kMaxOutputWidth) ? |
| ScaleRowDown8Int_C : ScaleRowDown8_C; |
| } |
| for (int y = 0; y < dst_height; ++y) { |
| ScaleRowDown8(src_ptr, src_stride, dst_ptr, dst_width); |
| src_ptr += (src_stride << 3); |
| dst_ptr += dst_stride; |
| } |
| } |
| |
| /** |
| * Scale plane down, 3/4 |
| * |
| * Provided by Frank Barchard (fbarchard@google.com) |
| * |
| */ |
| static void ScalePlaneDown34(int src_width, int src_height, |
| int dst_width, int dst_height, |
| int src_stride, int dst_stride, |
| const uint8* src_ptr, uint8* dst_ptr, |
| FilterMode filtering) { |
| assert(dst_width % 3 == 0); |
| void (*ScaleRowDown34_0)(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| void (*ScaleRowDown34_1)(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| #if defined(HAS_SCALEROWDOWN34_NEON) |
| if (TestCpuFlag(kCpuHasNEON) && |
| (dst_width % 24 == 0)) { |
| if (!filtering) { |
| ScaleRowDown34_0 = ScaleRowDown34_NEON; |
| ScaleRowDown34_1 = ScaleRowDown34_NEON; |
| } else { |
| ScaleRowDown34_0 = ScaleRowDown34_0_Int_NEON; |
| ScaleRowDown34_1 = ScaleRowDown34_1_Int_NEON; |
| } |
| } else |
| #endif |
| #if defined(HAS_SCALEROWDOWN34_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3) && |
| (dst_width % 24 == 0) && |
| IS_ALIGNED(src_ptr, 16) && IS_ALIGNED(src_stride, 16) && |
| IS_ALIGNED(dst_ptr, 8) && IS_ALIGNED(dst_stride, 8)) { |
| if (!filtering) { |
| ScaleRowDown34_0 = ScaleRowDown34_SSSE3; |
| ScaleRowDown34_1 = ScaleRowDown34_SSSE3; |
| } else { |
| ScaleRowDown34_0 = ScaleRowDown34_0_Int_SSSE3; |
| ScaleRowDown34_1 = ScaleRowDown34_1_Int_SSSE3; |
| } |
| } else |
| #endif |
| #if defined(HAS_SCALEROWDOWN34_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| (dst_width % 24 == 0) && IS_ALIGNED(src_stride, 16) && |
| IS_ALIGNED(dst_stride, 8) && |
| IS_ALIGNED(src_ptr, 16) && IS_ALIGNED(dst_ptr, 8) && |
| filtering) { |
| ScaleRowDown34_0 = ScaleRowDown34_0_Int_SSE2; |
| ScaleRowDown34_1 = ScaleRowDown34_1_Int_SSE2; |
| } else |
| #endif |
| { |
| if (!filtering) { |
| ScaleRowDown34_0 = ScaleRowDown34_C; |
| ScaleRowDown34_1 = ScaleRowDown34_C; |
| } else { |
| ScaleRowDown34_0 = ScaleRowDown34_0_Int_C; |
| ScaleRowDown34_1 = ScaleRowDown34_1_Int_C; |
| } |
| } |
| int src_row = 0; |
| for (int y = 0; y < dst_height; ++y) { |
| switch (src_row) { |
| case 0: |
| ScaleRowDown34_0(src_ptr, src_stride, dst_ptr, dst_width); |
| break; |
| |
| case 1: |
| ScaleRowDown34_1(src_ptr, src_stride, dst_ptr, dst_width); |
| break; |
| |
| case 2: |
| ScaleRowDown34_0(src_ptr + src_stride, -src_stride, |
| dst_ptr, dst_width); |
| break; |
| } |
| ++src_row; |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| if (src_row >= 3) { |
| src_ptr += src_stride; |
| src_row = 0; |
| } |
| } |
| } |
| |
| /** |
| * Scale plane, 3/8 |
| * |
| * This is an optimized version for scaling down a plane to 3/8 |
| * of its original size. |
| * |
| * Reduces 16x3 to 6x1 |
| */ |
| static void ScalePlaneDown38(int src_width, int src_height, |
| int dst_width, int dst_height, |
| int src_stride, int dst_stride, |
| const uint8* src_ptr, uint8* dst_ptr, |
| FilterMode filtering) { |
| assert(dst_width % 3 == 0); |
| void (*ScaleRowDown38_3)(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| void (*ScaleRowDown38_2)(const uint8* src_ptr, int src_stride, |
| uint8* dst_ptr, int dst_width); |
| #if defined(HAS_SCALEROWDOWN38_NEON) |
| if (TestCpuFlag(kCpuHasNEON) && |
| (dst_width % 12 == 0)) { |
| if (!filtering) { |
| ScaleRowDown38_3 = ScaleRowDown38_NEON; |
| ScaleRowDown38_2 = ScaleRowDown38_NEON; |
| } else { |
| ScaleRowDown38_3 = ScaleRowDown38_3_Int_NEON; |
| ScaleRowDown38_2 = ScaleRowDown38_2_Int_NEON; |
| } |
| } else |
| #endif |
| #if defined(HAS_SCALEROWDOWN38_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3) && |
| (dst_width % 24 == 0) && IS_ALIGNED(src_stride, 16) && |
| IS_ALIGNED(dst_stride, 8) && |
| IS_ALIGNED(src_ptr, 16) && IS_ALIGNED(dst_ptr, 8)) { |
| if (!filtering) { |
| ScaleRowDown38_3 = ScaleRowDown38_SSSE3; |
| ScaleRowDown38_2 = ScaleRowDown38_SSSE3; |
| } else { |
| ScaleRowDown38_3 = ScaleRowDown38_3_Int_SSSE3; |
| ScaleRowDown38_2 = ScaleRowDown38_2_Int_SSSE3; |
| } |
| } else |
| #endif |
| { |
| if (!filtering) { |
| ScaleRowDown38_3 = ScaleRowDown38_C; |
| ScaleRowDown38_2 = ScaleRowDown38_C; |
| } else { |
| ScaleRowDown38_3 = ScaleRowDown38_3_Int_C; |
| ScaleRowDown38_2 = ScaleRowDown38_2_Int_C; |
| } |
| } |
| int src_row = 0; |
| for (int y = 0; y < dst_height; ++y) { |
| switch (src_row) { |
| case 0: |
| case 1: |
| ScaleRowDown38_3(src_ptr, src_stride, dst_ptr, dst_width); |
| src_ptr += src_stride * 3; |
| ++src_row; |
| break; |
| |
| case 2: |
| ScaleRowDown38_2(src_ptr, src_stride, dst_ptr, dst_width); |
| src_ptr += src_stride * 2; |
| src_row = 0; |
| break; |
| } |
| dst_ptr += dst_stride; |
| } |
| } |
| |
| static __inline uint32 SumBox(int iboxwidth, int iboxheight, |
| int src_stride, const uint8* src_ptr) { |
| assert(iboxwidth > 0); |
| assert(iboxheight > 0); |
| uint32 sum = 0u; |
| for (int y = 0; y < iboxheight; ++y) { |
| for (int x = 0; x < iboxwidth; ++x) { |
| sum += src_ptr[x]; |
| } |
| src_ptr += src_stride; |
| } |
| return sum; |
| } |
| |
| static void ScalePlaneBoxRow(int dst_width, int boxheight, |
| int dx, int src_stride, |
| const uint8* src_ptr, uint8* dst_ptr) { |
| int x = 0; |
| for (int i = 0; i < dst_width; ++i) { |
| int ix = x >> 16; |
| x += dx; |
| int boxwidth = (x >> 16) - ix; |
| *dst_ptr++ = SumBox(boxwidth, boxheight, src_stride, src_ptr + ix) / |
| (boxwidth * boxheight); |
| } |
| } |
| |
| static __inline uint32 SumPixels(int iboxwidth, const uint16* src_ptr) { |
| assert(iboxwidth > 0); |
| uint32 sum = 0u; |
| for (int x = 0; x < iboxwidth; ++x) { |
| sum += src_ptr[x]; |
| } |
| return sum; |
| } |
| |
| static void ScaleAddCols2_C(int dst_width, int boxheight, int dx, |
| const uint16* src_ptr, uint8* dst_ptr) { |
| int scaletbl[2]; |
| int minboxwidth = (dx >> 16); |
| scaletbl[0] = 65536 / (minboxwidth * boxheight); |
| scaletbl[1] = 65536 / ((minboxwidth + 1) * boxheight); |
| int *scaleptr = scaletbl - minboxwidth; |
| int x = 0; |
| for (int i = 0; i < dst_width; ++i) { |
| int ix = x >> 16; |
| x += dx; |
| int boxwidth = (x >> 16) - ix; |
| *dst_ptr++ = SumPixels(boxwidth, src_ptr + ix) * scaleptr[boxwidth] >> 16; |
| } |
| } |
| |
| static void ScaleAddCols1_C(int dst_width, int boxheight, int dx, |
| const uint16* src_ptr, uint8* dst_ptr) { |
| int boxwidth = (dx >> 16); |
| int scaleval = 65536 / (boxwidth * boxheight); |
| int x = 0; |
| for (int i = 0; i < dst_width; ++i) { |
| *dst_ptr++ = SumPixels(boxwidth, src_ptr + x) * scaleval >> 16; |
| x += boxwidth; |
| } |
| } |
| |
| /** |
| * Scale plane down to any dimensions, with interpolation. |
| * (boxfilter). |
| * |
| * Same method as SimpleScale, which is fixed point, outputting |
| * one pixel of destination using fixed point (16.16) to step |
| * through source, sampling a box of pixel with simple |
| * averaging. |
| */ |
| static void ScalePlaneBox(int src_width, int src_height, |
| int dst_width, int dst_height, |
| int src_stride, int dst_stride, |
| const uint8* src_ptr, uint8* dst_ptr) { |
| assert(dst_width > 0); |
| assert(dst_height > 0); |
| int dy = (src_height << 16) / dst_height; |
| int dx = (src_width << 16) / dst_width; |
| if (!IS_ALIGNED(src_width, 16) || (src_width > kMaxInputWidth) || |
| dst_height * 2 > src_height) { |
| uint8* dst = dst_ptr; |
| int dy = (src_height << 16) / dst_height; |
| int dx = (src_width << 16) / dst_width; |
| int y = 0; |
| for (int j = 0; j < dst_height; ++j) { |
| int iy = y >> 16; |
| const uint8* const src = src_ptr + iy * src_stride; |
| y += dy; |
| if (y > (src_height << 16)) { |
| y = (src_height << 16); |
| } |
| int boxheight = (y >> 16) - iy; |
| ScalePlaneBoxRow(dst_width, boxheight, |
| dx, src_stride, |
| src, dst); |
| |
| dst += dst_stride; |
| } |
| } else { |
| ALIGN16(uint16 row[kMaxInputWidth]); |
| void (*ScaleAddRows)(const uint8* src_ptr, int src_stride, |
| uint16* dst_ptr, int src_width, int src_height); |
| void (*ScaleAddCols)(int dst_width, int boxheight, int dx, |
| const uint16* src_ptr, uint8* dst_ptr); |
| #if defined(HAS_SCALEADDROWS_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| IS_ALIGNED(src_stride, 16) && IS_ALIGNED(src_ptr, 16) && |
| IS_ALIGNED(src_width, 16)) { |
| ScaleAddRows = ScaleAddRows_SSE2; |
| } else |
| #endif |
| { |
| ScaleAddRows = ScaleAddRows_C; |
| } |
| if (dx & 0xffff) { |
| ScaleAddCols = ScaleAddCols2_C; |
| } else { |
| ScaleAddCols = ScaleAddCols1_C; |
| } |
| |
| int y = 0; |
| for (int j = 0; j < dst_height; ++j) { |
| int iy = y >> 16; |
| const uint8* const src = src_ptr + iy * src_stride; |
| y += dy; |
| if (y > (src_height << 16)) { |
| y = (src_height << 16); |
| } |
| int boxheight = (y >> 16) - iy; |
| ScaleAddRows(src, src_stride, row, src_width, boxheight); |
| ScaleAddCols(dst_width, boxheight, dx, row, dst_ptr); |
| dst_ptr += dst_stride; |
| } |
| } |
| } |
| |
| /** |
| * Scale plane to/from any dimensions, with interpolation. |
| */ |
| static void ScalePlaneBilinearSimple(int src_width, int src_height, |
| int dst_width, int dst_height, |
| int src_stride, int dst_stride, |
| const uint8* src_ptr, uint8* dst_ptr) { |
| uint8* dst = dst_ptr; |
| int dx = (src_width << 16) / dst_width; |
| int dy = (src_height << 16) / dst_height; |
| int maxx = ((src_width - 1) << 16) - 1; |
| int maxy = ((src_height - 1) << 16) - 1; |
| int y = (dst_height < src_height) ? 32768 : |
| (src_height << 16) / dst_height - 32768; |
| for (int i = 0; i < dst_height; ++i) { |
| int cy = (y < 0) ? 0 : y; |
| int yi = cy >> 16; |
| int yf = cy & 0xffff; |
| const uint8* const src = src_ptr + yi * src_stride; |
| int x = (dst_width < src_width) ? 32768 : |
| (src_width << 16) / dst_width - 32768; |
| for (int j = 0; j < dst_width; ++j) { |
| int cx = (x < 0) ? 0 : x; |
| int xi = cx >> 16; |
| int xf = cx & 0xffff; |
| int r0 = (src[xi] * (65536 - xf) + src[xi + 1] * xf) >> 16; |
| int r1 = (src[xi + src_stride] * (65536 - xf) + |
| src[xi + src_stride + 1] * xf) >> 16; |
| *dst++ = (r0 * (65536 - yf) + r1 * yf) >> 16; |
| x += dx; |
| if (x > maxx) |
| x = maxx; |
| } |
| dst += dst_stride - dst_width; |
| y += dy; |
| if (y > maxy) |
| y = maxy; |
| } |
| } |
| |
| /** |
| * Scale plane to/from any dimensions, with bilinear |
| * interpolation. |
| */ |
| void ScalePlaneBilinear(int src_width, int src_height, |
| int dst_width, int dst_height, |
| int src_stride, int dst_stride, |
| const uint8* src_ptr, uint8* dst_ptr) { |
| assert(dst_width > 0); |
| assert(dst_height > 0); |
| int dy = (src_height << 16) / dst_height; |
| int dx = (src_width << 16) / dst_width; |
| if (!IS_ALIGNED(src_width, 8) || (src_width > kMaxInputWidth)) { |
| ScalePlaneBilinearSimple(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src_ptr, dst_ptr); |
| |
| } else { |
| ALIGN16(uint8 row[kMaxInputWidth + 1]); |
| void (*ScaleFilterRows)(uint8* dst_ptr, const uint8* src_ptr, |
| int src_stride, |
| int dst_width, int source_y_fraction); |
| void (*ScaleFilterCols)(uint8* dst_ptr, const uint8* src_ptr, |
| int dst_width, int dx); |
| #if defined(HAS_SCALEFILTERROWS_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3) && |
| IS_ALIGNED(src_stride, 16) && IS_ALIGNED(src_ptr, 16) && |
| IS_ALIGNED(src_width, 16)) { |
| ScaleFilterRows = ScaleFilterRows_SSSE3; |
| } else |
| #endif |
| #if defined(HAS_SCALEFILTERROWS_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| IS_ALIGNED(src_stride, 16) && IS_ALIGNED(src_ptr, 16) && |
| IS_ALIGNED(src_width, 16)) { |
| ScaleFilterRows = ScaleFilterRows_SSE2; |
| } else |
| #endif |
| { |
| ScaleFilterRows = ScaleFilterRows_C; |
| } |
| ScaleFilterCols = ScaleFilterCols_C; |
| |
| int y = 0; |
| int maxy = ((src_height - 1) << 16) - 1; // max is filter of last 2 rows. |
| for (int j = 0; j < dst_height; ++j) { |
| int iy = y >> 16; |
| int fy = (y >> 8) & 255; |
| const uint8* const src = src_ptr + iy * src_stride; |
| ScaleFilterRows(row, src, src_stride, src_width, fy); |
| ScaleFilterCols(dst_ptr, row, dst_width, dx); |
| dst_ptr += dst_stride; |
| y += dy; |
| if (y > maxy) { |
| y = maxy; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Scale plane to/from any dimensions, without interpolation. |
| * Fixed point math is used for performance: The upper 16 bits |
| * of x and dx is the integer part of the source position and |
| * the lower 16 bits are the fixed decimal part. |
| */ |
| static void ScalePlaneSimple(int src_width, int src_height, |
| int dst_width, int dst_height, |
| int src_stride, int dst_stride, |
| const uint8* src_ptr, uint8* dst_ptr) { |
| uint8* dst = dst_ptr; |
| int dx = (src_width << 16) / dst_width; |
| for (int y = 0; y < dst_height; ++y) { |
| const uint8* const src = src_ptr + (y * src_height / dst_height) * |
| src_stride; |
| // TODO(fbarchard): Round X coordinate by setting x=0x8000. |
| int x = 0; |
| for (int i = 0; i < dst_width; ++i) { |
| *dst++ = src[x >> 16]; |
| x += dx; |
| } |
| dst += dst_stride - dst_width; |
| } |
| } |
| |
| /** |
| * Scale plane to/from any dimensions. |
| */ |
| static void ScalePlaneAnySize(int src_width, int src_height, |
| int dst_width, int dst_height, |
| int src_stride, int dst_stride, |
| const uint8* src_ptr, uint8* dst_ptr, |
| FilterMode filtering) { |
| if (!filtering) { |
| ScalePlaneSimple(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src_ptr, dst_ptr); |
| } else { |
| // fall back to non-optimized version |
| ScalePlaneBilinear(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src_ptr, dst_ptr); |
| } |
| } |
| |
| /** |
| * Scale plane down, any size |
| * |
| * This is an optimized version for scaling down a plane to any size. |
| * The current implementation is ~10 times faster compared to the |
| * reference implementation for e.g. XGA->LowResPAL |
| * |
| */ |
| static void ScalePlaneDown(int src_width, int src_height, |
| int dst_width, int dst_height, |
| int src_stride, int dst_stride, |
| const uint8* src_ptr, uint8* dst_ptr, |
| FilterMode filtering) { |
| if (!filtering) { |
| ScalePlaneSimple(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src_ptr, dst_ptr); |
| } else if (filtering == kFilterBilinear || src_height * 2 > dst_height) { |
| // between 1/2x and 1x use bilinear |
| ScalePlaneBilinear(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src_ptr, dst_ptr); |
| } else { |
| ScalePlaneBox(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src_ptr, dst_ptr); |
| } |
| } |
| |
| static void ScalePlane(const uint8* src, int src_stride, |
| int src_width, int src_height, |
| uint8* dst, int dst_stride, |
| int dst_width, int dst_height, |
| FilterMode filtering, bool use_ref) { |
| // Use specialized scales to improve performance for common resolutions. |
| // For example, all the 1/2 scalings will use ScalePlaneDown2() |
| if (dst_width == src_width && dst_height == src_height) { |
| // Straight copy. |
| CopyPlane(src, src_stride, dst, dst_stride, dst_width, dst_height); |
| } else if (dst_width <= src_width && dst_height <= src_height) { |
| // Scale down. |
| if (use_ref) { |
| // For testing, allow the optimized versions to be disabled. |
| ScalePlaneDown(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src, dst, filtering); |
| } else if (4 * dst_width == 3 * src_width && |
| 4 * dst_height == 3 * src_height) { |
| // optimized, 3/4 |
| ScalePlaneDown34(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src, dst, filtering); |
| } else if (2 * dst_width == src_width && 2 * dst_height == src_height) { |
| // optimized, 1/2 |
| ScalePlaneDown2(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src, dst, filtering); |
| // 3/8 rounded up for odd sized chroma height. |
| } else if (8 * dst_width == 3 * src_width && |
| dst_height == ((src_height * 3 + 7) / 8)) { |
| // optimized, 3/8 |
| ScalePlaneDown38(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src, dst, filtering); |
| } else if (4 * dst_width == src_width && 4 * dst_height == src_height) { |
| // optimized, 1/4 |
| ScalePlaneDown4(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src, dst, filtering); |
| } else if (8 * dst_width == src_width && 8 * dst_height == src_height) { |
| // optimized, 1/8 |
| ScalePlaneDown8(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src, dst, filtering); |
| } else { |
| // Arbitrary downsample |
| ScalePlaneDown(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src, dst, filtering); |
| } |
| } else { |
| // Arbitrary scale up and/or down. |
| ScalePlaneAnySize(src_width, src_height, dst_width, dst_height, |
| src_stride, dst_stride, src, dst, filtering); |
| } |
| } |
| |
| /** |
| * Scale a plane. |
| * |
| * This function in turn calls a scaling function |
| * suitable for handling the desired resolutions. |
| * |
| */ |
| |
| int I420Scale(const uint8* src_y, int src_stride_y, |
| const uint8* src_u, int src_stride_u, |
| const uint8* src_v, int src_stride_v, |
| int src_width, int src_height, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int dst_width, int dst_height, |
| FilterMode filtering) { |
| if (!src_y || !src_u || !src_v || src_width <= 0 || src_height == 0 || |
| !dst_y || !dst_u || !dst_v || dst_width <= 0 || dst_height <= 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (src_height < 0) { |
| src_height = -src_height; |
| int halfheight = (src_height + 1) >> 1; |
| src_y = src_y + (src_height - 1) * src_stride_y; |
| src_u = src_u + (halfheight - 1) * src_stride_u; |
| src_v = src_v + (halfheight - 1) * src_stride_v; |
| src_stride_y = -src_stride_y; |
| src_stride_u = -src_stride_u; |
| src_stride_v = -src_stride_v; |
| } |
| int src_halfwidth = (src_width + 1) >> 1; |
| int src_halfheight = (src_height + 1) >> 1; |
| int dst_halfwidth = (dst_width + 1) >> 1; |
| int dst_halfheight = (dst_height + 1) >> 1; |
| |
| ScalePlane(src_y, src_stride_y, src_width, src_height, |
| dst_y, dst_stride_y, dst_width, dst_height, |
| filtering, use_reference_impl_); |
| ScalePlane(src_u, src_stride_u, src_halfwidth, src_halfheight, |
| dst_u, dst_stride_u, dst_halfwidth, dst_halfheight, |
| filtering, use_reference_impl_); |
| ScalePlane(src_v, src_stride_v, src_halfwidth, src_halfheight, |
| dst_v, dst_stride_v, dst_halfwidth, dst_halfheight, |
| filtering, use_reference_impl_); |
| return 0; |
| } |
| |
| // Deprecated api |
| int Scale(const uint8* src_y, const uint8* src_u, const uint8* src_v, |
| int src_stride_y, int src_stride_u, int src_stride_v, |
| int src_width, int src_height, |
| uint8* dst_y, uint8* dst_u, uint8* dst_v, |
| int dst_stride_y, int dst_stride_u, int dst_stride_v, |
| int dst_width, int dst_height, |
| bool interpolate) { |
| if (!src_y || !src_u || !src_v || src_width <= 0 || src_height == 0 || |
| !dst_y || !dst_u || !dst_v || dst_width <= 0 || dst_height <= 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (src_height < 0) { |
| src_height = -src_height; |
| int halfheight = (src_height + 1) >> 1; |
| src_y = src_y + (src_height - 1) * src_stride_y; |
| src_u = src_u + (halfheight - 1) * src_stride_u; |
| src_v = src_v + (halfheight - 1) * src_stride_v; |
| src_stride_y = -src_stride_y; |
| src_stride_u = -src_stride_u; |
| src_stride_v = -src_stride_v; |
| } |
| int src_halfwidth = (src_width + 1) >> 1; |
| int src_halfheight = (src_height + 1) >> 1; |
| int dst_halfwidth = (dst_width + 1) >> 1; |
| int dst_halfheight = (dst_height + 1) >> 1; |
| FilterMode filtering = interpolate ? kFilterBox : kFilterNone; |
| |
| ScalePlane(src_y, src_stride_y, src_width, src_height, |
| dst_y, dst_stride_y, dst_width, dst_height, |
| filtering, use_reference_impl_); |
| ScalePlane(src_u, src_stride_u, src_halfwidth, src_halfheight, |
| dst_u, dst_stride_u, dst_halfwidth, dst_halfheight, |
| filtering, use_reference_impl_); |
| ScalePlane(src_v, src_stride_v, src_halfwidth, src_halfheight, |
| dst_v, dst_stride_v, dst_halfwidth, dst_halfheight, |
| filtering, use_reference_impl_); |
| return 0; |
| } |
| |
| // Deprecated api |
| int ScaleOffset(const uint8* src, int src_width, int src_height, |
| uint8* dst, int dst_width, int dst_height, int dst_yoffset, |
| bool interpolate) { |
| if (!src || src_width <= 0 || src_height <= 0 || |
| !dst || dst_width <= 0 || dst_height <= 0 || dst_yoffset < 0 || |
| dst_yoffset >= dst_height) { |
| return -1; |
| } |
| dst_yoffset = dst_yoffset & ~1; // chroma requires offset to multiple of 2. |
| int src_halfwidth = (src_width + 1) >> 1; |
| int src_halfheight = (src_height + 1) >> 1; |
| int dst_halfwidth = (dst_width + 1) >> 1; |
| int dst_halfheight = (dst_height + 1) >> 1; |
| int aheight = dst_height - dst_yoffset * 2; // actual output height |
| const uint8* const src_y = src; |
| const uint8* const src_u = src + src_width * src_height; |
| const uint8* const src_v = src + src_width * src_height + |
| src_halfwidth * src_halfheight; |
| uint8* dst_y = dst + dst_yoffset * dst_width; |
| uint8* dst_u = dst + dst_width * dst_height + |
| (dst_yoffset >> 1) * dst_halfwidth; |
| uint8* dst_v = dst + dst_width * dst_height + dst_halfwidth * dst_halfheight + |
| (dst_yoffset >> 1) * dst_halfwidth; |
| return Scale(src_y, src_u, src_v, src_width, src_halfwidth, src_halfwidth, |
| src_width, src_height, dst_y, dst_u, dst_v, dst_width, |
| dst_halfwidth, dst_halfwidth, dst_width, aheight, interpolate); |
| } |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| } // namespace libyuv |
| #endif |