diff options
Diffstat (limited to 'third_party/libyuv/source/rotate_neon.cc')
-rw-r--r-- | third_party/libyuv/source/rotate_neon.cc | 659 |
1 files changed, 271 insertions, 388 deletions
diff --git a/third_party/libyuv/source/rotate_neon.cc b/third_party/libyuv/source/rotate_neon.cc index 1c22b472b..fdc0dd476 100644 --- a/third_party/libyuv/source/rotate_neon.cc +++ b/third_party/libyuv/source/rotate_neon.cc @@ -8,8 +8,8 @@ * be found in the AUTHORS file in the root of the source tree. */ -#include "libyuv/row.h" #include "libyuv/rotate_row.h" +#include "libyuv/row.h" #include "libyuv/basic_types.h" @@ -21,38 +21,32 @@ extern "C" { #if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__) && \ !defined(__aarch64__) -static uvec8 kVTbl4x4Transpose = - { 0, 4, 8, 12, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15 }; +static const uvec8 kVTbl4x4Transpose = {0, 4, 8, 12, 1, 5, 9, 13, + 2, 6, 10, 14, 3, 7, 11, 15}; -void TransposeWx8_NEON(const uint8* src, int src_stride, - uint8* dst, int dst_stride, +void TransposeWx8_NEON(const uint8_t* src, + int src_stride, + uint8_t* dst, + int dst_stride, int width) { - const uint8* src_temp; - asm volatile ( - // loops are on blocks of 8. loop will stop when - // counter gets to or below 0. starting the counter - // at w-8 allow for this - "sub %5, #8 \n" - - // handle 8x8 blocks. this should be the majority of the plane - "1: \n" + const uint8_t* src_temp; + asm volatile( + // loops are on blocks of 8. loop will stop when + // counter gets to or below 0. starting the counter + // at w-8 allow for this + "sub %5, #8 \n" + + // handle 8x8 blocks. this should be the majority of the plane + "1: \n" "mov %0, %1 \n" - MEMACCESS(0) "vld1.8 {d0}, [%0], %2 \n" - MEMACCESS(0) "vld1.8 {d1}, [%0], %2 \n" - MEMACCESS(0) "vld1.8 {d2}, [%0], %2 \n" - MEMACCESS(0) "vld1.8 {d3}, [%0], %2 \n" - MEMACCESS(0) "vld1.8 {d4}, [%0], %2 \n" - MEMACCESS(0) "vld1.8 {d5}, [%0], %2 \n" - MEMACCESS(0) "vld1.8 {d6}, [%0], %2 \n" - MEMACCESS(0) "vld1.8 {d7}, [%0] \n" "vtrn.8 d1, d0 \n" @@ -77,21 +71,13 @@ void TransposeWx8_NEON(const uint8* src, int src_stride, "mov %0, %3 \n" - MEMACCESS(0) "vst1.8 {d1}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d0}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d3}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d2}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d5}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d4}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d7}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d6}, [%0] \n" "add %1, #8 \n" // src += 8 @@ -99,180 +85,138 @@ void TransposeWx8_NEON(const uint8* src, int src_stride, "subs %5, #8 \n" // w -= 8 "bge 1b \n" - // add 8 back to counter. if the result is 0 there are - // no residuals. - "adds %5, #8 \n" - "beq 4f \n" - - // some residual, so between 1 and 7 lines left to transpose - "cmp %5, #2 \n" - "blt 3f \n" - - "cmp %5, #4 \n" - "blt 2f \n" - - // 4x8 block - "mov %0, %1 \n" - MEMACCESS(0) - "vld1.32 {d0[0]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.32 {d0[1]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.32 {d1[0]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.32 {d1[1]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.32 {d2[0]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.32 {d2[1]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.32 {d3[0]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.32 {d3[1]}, [%0] \n" - - "mov %0, %3 \n" - - MEMACCESS(6) - "vld1.8 {q3}, [%6] \n" - - "vtbl.8 d4, {d0, d1}, d6 \n" - "vtbl.8 d5, {d0, d1}, d7 \n" - "vtbl.8 d0, {d2, d3}, d6 \n" - "vtbl.8 d1, {d2, d3}, d7 \n" - - // TODO(frkoenig): Rework shuffle above to - // write out with 4 instead of 8 writes. - MEMACCESS(0) - "vst1.32 {d4[0]}, [%0], %4 \n" - MEMACCESS(0) - "vst1.32 {d4[1]}, [%0], %4 \n" - MEMACCESS(0) - "vst1.32 {d5[0]}, [%0], %4 \n" - MEMACCESS(0) - "vst1.32 {d5[1]}, [%0] \n" - - "add %0, %3, #4 \n" - MEMACCESS(0) - "vst1.32 {d0[0]}, [%0], %4 \n" - MEMACCESS(0) - "vst1.32 {d0[1]}, [%0], %4 \n" - MEMACCESS(0) - "vst1.32 {d1[0]}, [%0], %4 \n" - MEMACCESS(0) - "vst1.32 {d1[1]}, [%0] \n" - - "add %1, #4 \n" // src += 4 - "add %3, %3, %4, lsl #2 \n" // dst += 4 * dst_stride - "subs %5, #4 \n" // w -= 4 - "beq 4f \n" - - // some residual, check to see if it includes a 2x8 block, - // or less - "cmp %5, #2 \n" - "blt 3f \n" - - // 2x8 block - "2: \n" - "mov %0, %1 \n" - MEMACCESS(0) - "vld1.16 {d0[0]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.16 {d1[0]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.16 {d0[1]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.16 {d1[1]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.16 {d0[2]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.16 {d1[2]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.16 {d0[3]}, [%0], %2 \n" - MEMACCESS(0) - "vld1.16 {d1[3]}, [%0] \n" - - "vtrn.8 d0, d1 \n" - - "mov %0, %3 \n" - - MEMACCESS(0) - "vst1.64 {d0}, [%0], %4 \n" - MEMACCESS(0) - "vst1.64 {d1}, [%0] \n" - - "add %1, #2 \n" // src += 2 - "add %3, %3, %4, lsl #1 \n" // dst += 2 * dst_stride - "subs %5, #2 \n" // w -= 2 - "beq 4f \n" - - // 1x8 block - "3: \n" - MEMACCESS(1) - "vld1.8 {d0[0]}, [%1], %2 \n" - MEMACCESS(1) - "vld1.8 {d0[1]}, [%1], %2 \n" - MEMACCESS(1) - "vld1.8 {d0[2]}, [%1], %2 \n" - MEMACCESS(1) - "vld1.8 {d0[3]}, [%1], %2 \n" - MEMACCESS(1) - "vld1.8 {d0[4]}, [%1], %2 \n" - MEMACCESS(1) - "vld1.8 {d0[5]}, [%1], %2 \n" - MEMACCESS(1) - "vld1.8 {d0[6]}, [%1], %2 \n" - MEMACCESS(1) - "vld1.8 {d0[7]}, [%1] \n" - - MEMACCESS(3) - "vst1.64 {d0}, [%3] \n" - - "4: \n" - - : "=&r"(src_temp), // %0 - "+r"(src), // %1 - "+r"(src_stride), // %2 - "+r"(dst), // %3 - "+r"(dst_stride), // %4 - "+r"(width) // %5 - : "r"(&kVTbl4x4Transpose) // %6 - : "memory", "cc", "q0", "q1", "q2", "q3" - ); + // add 8 back to counter. if the result is 0 there are + // no residuals. + "adds %5, #8 \n" + "beq 4f \n" + + // some residual, so between 1 and 7 lines left to transpose + "cmp %5, #2 \n" + "blt 3f \n" + + "cmp %5, #4 \n" + "blt 2f \n" + + // 4x8 block + "mov %0, %1 \n" + "vld1.32 {d0[0]}, [%0], %2 \n" + "vld1.32 {d0[1]}, [%0], %2 \n" + "vld1.32 {d1[0]}, [%0], %2 \n" + "vld1.32 {d1[1]}, [%0], %2 \n" + "vld1.32 {d2[0]}, [%0], %2 \n" + "vld1.32 {d2[1]}, [%0], %2 \n" + "vld1.32 {d3[0]}, [%0], %2 \n" + "vld1.32 {d3[1]}, [%0] \n" + + "mov %0, %3 \n" + + "vld1.8 {q3}, [%6] \n" + + "vtbl.8 d4, {d0, d1}, d6 \n" + "vtbl.8 d5, {d0, d1}, d7 \n" + "vtbl.8 d0, {d2, d3}, d6 \n" + "vtbl.8 d1, {d2, d3}, d7 \n" + + // TODO(frkoenig): Rework shuffle above to + // write out with 4 instead of 8 writes. + "vst1.32 {d4[0]}, [%0], %4 \n" + "vst1.32 {d4[1]}, [%0], %4 \n" + "vst1.32 {d5[0]}, [%0], %4 \n" + "vst1.32 {d5[1]}, [%0] \n" + + "add %0, %3, #4 \n" + "vst1.32 {d0[0]}, [%0], %4 \n" + "vst1.32 {d0[1]}, [%0], %4 \n" + "vst1.32 {d1[0]}, [%0], %4 \n" + "vst1.32 {d1[1]}, [%0] \n" + + "add %1, #4 \n" // src += 4 + "add %3, %3, %4, lsl #2 \n" // dst += 4 * dst_stride + "subs %5, #4 \n" // w -= 4 + "beq 4f \n" + + // some residual, check to see if it includes a 2x8 block, + // or less + "cmp %5, #2 \n" + "blt 3f \n" + + // 2x8 block + "2: \n" + "mov %0, %1 \n" + "vld1.16 {d0[0]}, [%0], %2 \n" + "vld1.16 {d1[0]}, [%0], %2 \n" + "vld1.16 {d0[1]}, [%0], %2 \n" + "vld1.16 {d1[1]}, [%0], %2 \n" + "vld1.16 {d0[2]}, [%0], %2 \n" + "vld1.16 {d1[2]}, [%0], %2 \n" + "vld1.16 {d0[3]}, [%0], %2 \n" + "vld1.16 {d1[3]}, [%0] \n" + + "vtrn.8 d0, d1 \n" + + "mov %0, %3 \n" + + "vst1.64 {d0}, [%0], %4 \n" + "vst1.64 {d1}, [%0] \n" + + "add %1, #2 \n" // src += 2 + "add %3, %3, %4, lsl #1 \n" // dst += 2 * dst_stride + "subs %5, #2 \n" // w -= 2 + "beq 4f \n" + + // 1x8 block + "3: \n" + "vld1.8 {d0[0]}, [%1], %2 \n" + "vld1.8 {d0[1]}, [%1], %2 \n" + "vld1.8 {d0[2]}, [%1], %2 \n" + "vld1.8 {d0[3]}, [%1], %2 \n" + "vld1.8 {d0[4]}, [%1], %2 \n" + "vld1.8 {d0[5]}, [%1], %2 \n" + "vld1.8 {d0[6]}, [%1], %2 \n" + "vld1.8 {d0[7]}, [%1] \n" + + "vst1.64 {d0}, [%3] \n" + + "4: \n" + + : "=&r"(src_temp), // %0 + "+r"(src), // %1 + "+r"(src_stride), // %2 + "+r"(dst), // %3 + "+r"(dst_stride), // %4 + "+r"(width) // %5 + : "r"(&kVTbl4x4Transpose) // %6 + : "memory", "cc", "q0", "q1", "q2", "q3"); } -static uvec8 kVTbl4x4TransposeDi = - { 0, 8, 1, 9, 2, 10, 3, 11, 4, 12, 5, 13, 6, 14, 7, 15 }; +static const uvec8 kVTbl4x4TransposeDi = {0, 8, 1, 9, 2, 10, 3, 11, + 4, 12, 5, 13, 6, 14, 7, 15}; -void TransposeUVWx8_NEON(const uint8* src, int src_stride, - uint8* dst_a, int dst_stride_a, - uint8* dst_b, int dst_stride_b, +void TransposeUVWx8_NEON(const uint8_t* src, + int src_stride, + uint8_t* dst_a, + int dst_stride_a, + uint8_t* dst_b, + int dst_stride_b, int width) { - const uint8* src_temp; - asm volatile ( - // loops are on blocks of 8. loop will stop when - // counter gets to or below 0. starting the counter - // at w-8 allow for this - "sub %7, #8 \n" - - // handle 8x8 blocks. this should be the majority of the plane - "1: \n" + const uint8_t* src_temp; + asm volatile( + // loops are on blocks of 8. loop will stop when + // counter gets to or below 0. starting the counter + // at w-8 allow for this + "sub %7, #8 \n" + + // handle 8x8 blocks. this should be the majority of the plane + "1: \n" "mov %0, %1 \n" - MEMACCESS(0) "vld2.8 {d0, d1}, [%0], %2 \n" - MEMACCESS(0) "vld2.8 {d2, d3}, [%0], %2 \n" - MEMACCESS(0) "vld2.8 {d4, d5}, [%0], %2 \n" - MEMACCESS(0) "vld2.8 {d6, d7}, [%0], %2 \n" - MEMACCESS(0) "vld2.8 {d16, d17}, [%0], %2 \n" - MEMACCESS(0) "vld2.8 {d18, d19}, [%0], %2 \n" - MEMACCESS(0) "vld2.8 {d20, d21}, [%0], %2 \n" - MEMACCESS(0) "vld2.8 {d22, d23}, [%0] \n" "vtrn.8 q1, q0 \n" @@ -301,40 +245,24 @@ void TransposeUVWx8_NEON(const uint8* src, int src_stride, "mov %0, %3 \n" - MEMACCESS(0) "vst1.8 {d2}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d0}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d6}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d4}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d18}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d16}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d22}, [%0], %4 \n" - MEMACCESS(0) "vst1.8 {d20}, [%0] \n" "mov %0, %5 \n" - MEMACCESS(0) "vst1.8 {d3}, [%0], %6 \n" - MEMACCESS(0) "vst1.8 {d1}, [%0], %6 \n" - MEMACCESS(0) "vst1.8 {d7}, [%0], %6 \n" - MEMACCESS(0) "vst1.8 {d5}, [%0], %6 \n" - MEMACCESS(0) "vst1.8 {d19}, [%0], %6 \n" - MEMACCESS(0) "vst1.8 {d17}, [%0], %6 \n" - MEMACCESS(0) "vst1.8 {d23}, [%0], %6 \n" - MEMACCESS(0) "vst1.8 {d21}, [%0] \n" "add %1, #8*2 \n" // src += 8*2 @@ -343,187 +271,142 @@ void TransposeUVWx8_NEON(const uint8* src, int src_stride, "subs %7, #8 \n" // w -= 8 "bge 1b \n" - // add 8 back to counter. if the result is 0 there are - // no residuals. - "adds %7, #8 \n" - "beq 4f \n" - - // some residual, so between 1 and 7 lines left to transpose - "cmp %7, #2 \n" - "blt 3f \n" - - "cmp %7, #4 \n" - "blt 2f \n" - - // TODO(frkoenig): Clean this up - // 4x8 block - "mov %0, %1 \n" - MEMACCESS(0) - "vld1.64 {d0}, [%0], %2 \n" - MEMACCESS(0) - "vld1.64 {d1}, [%0], %2 \n" - MEMACCESS(0) - "vld1.64 {d2}, [%0], %2 \n" - MEMACCESS(0) - "vld1.64 {d3}, [%0], %2 \n" - MEMACCESS(0) - "vld1.64 {d4}, [%0], %2 \n" - MEMACCESS(0) - "vld1.64 {d5}, [%0], %2 \n" - MEMACCESS(0) - "vld1.64 {d6}, [%0], %2 \n" - MEMACCESS(0) - "vld1.64 {d7}, [%0] \n" - - MEMACCESS(8) - "vld1.8 {q15}, [%8] \n" - - "vtrn.8 q0, q1 \n" - "vtrn.8 q2, q3 \n" - - "vtbl.8 d16, {d0, d1}, d30 \n" - "vtbl.8 d17, {d0, d1}, d31 \n" - "vtbl.8 d18, {d2, d3}, d30 \n" - "vtbl.8 d19, {d2, d3}, d31 \n" - "vtbl.8 d20, {d4, d5}, d30 \n" - "vtbl.8 d21, {d4, d5}, d31 \n" - "vtbl.8 d22, {d6, d7}, d30 \n" - "vtbl.8 d23, {d6, d7}, d31 \n" - - "mov %0, %3 \n" - - MEMACCESS(0) - "vst1.32 {d16[0]}, [%0], %4 \n" - MEMACCESS(0) - "vst1.32 {d16[1]}, [%0], %4 \n" - MEMACCESS(0) - "vst1.32 {d17[0]}, [%0], %4 \n" - MEMACCESS(0) - "vst1.32 {d17[1]}, [%0], %4 \n" - - "add %0, %3, #4 \n" - MEMACCESS(0) - "vst1.32 {d20[0]}, [%0], %4 \n" - MEMACCESS(0) - "vst1.32 {d20[1]}, [%0], %4 \n" - MEMACCESS(0) - "vst1.32 {d21[0]}, [%0], %4 \n" - MEMACCESS(0) - "vst1.32 {d21[1]}, [%0] \n" - - "mov %0, %5 \n" - - MEMACCESS(0) - "vst1.32 {d18[0]}, [%0], %6 \n" - MEMACCESS(0) - "vst1.32 {d18[1]}, [%0], %6 \n" - MEMACCESS(0) - "vst1.32 {d19[0]}, [%0], %6 \n" - MEMACCESS(0) - "vst1.32 {d19[1]}, [%0], %6 \n" - - "add %0, %5, #4 \n" - MEMACCESS(0) - "vst1.32 {d22[0]}, [%0], %6 \n" - MEMACCESS(0) - "vst1.32 {d22[1]}, [%0], %6 \n" - MEMACCESS(0) - "vst1.32 {d23[0]}, [%0], %6 \n" - MEMACCESS(0) - "vst1.32 {d23[1]}, [%0] \n" - - "add %1, #4*2 \n" // src += 4 * 2 - "add %3, %3, %4, lsl #2 \n" // dst_a += 4 * dst_stride_a - "add %5, %5, %6, lsl #2 \n" // dst_b += 4 * dst_stride_b - "subs %7, #4 \n" // w -= 4 - "beq 4f \n" - - // some residual, check to see if it includes a 2x8 block, - // or less - "cmp %7, #2 \n" - "blt 3f \n" - - // 2x8 block - "2: \n" - "mov %0, %1 \n" - MEMACCESS(0) - "vld2.16 {d0[0], d2[0]}, [%0], %2 \n" - MEMACCESS(0) - "vld2.16 {d1[0], d3[0]}, [%0], %2 \n" - MEMACCESS(0) - "vld2.16 {d0[1], d2[1]}, [%0], %2 \n" - MEMACCESS(0) - "vld2.16 {d1[1], d3[1]}, [%0], %2 \n" - MEMACCESS(0) - "vld2.16 {d0[2], d2[2]}, [%0], %2 \n" - MEMACCESS(0) - "vld2.16 {d1[2], d3[2]}, [%0], %2 \n" - MEMACCESS(0) - "vld2.16 {d0[3], d2[3]}, [%0], %2 \n" - MEMACCESS(0) - "vld2.16 {d1[3], d3[3]}, [%0] \n" - - "vtrn.8 d0, d1 \n" - "vtrn.8 d2, d3 \n" - - "mov %0, %3 \n" - - MEMACCESS(0) - "vst1.64 {d0}, [%0], %4 \n" - MEMACCESS(0) - "vst1.64 {d2}, [%0] \n" - - "mov %0, %5 \n" - - MEMACCESS(0) - "vst1.64 {d1}, [%0], %6 \n" - MEMACCESS(0) - "vst1.64 {d3}, [%0] \n" - - "add %1, #2*2 \n" // src += 2 * 2 - "add %3, %3, %4, lsl #1 \n" // dst_a += 2 * dst_stride_a - "add %5, %5, %6, lsl #1 \n" // dst_b += 2 * dst_stride_b - "subs %7, #2 \n" // w -= 2 - "beq 4f \n" - - // 1x8 block - "3: \n" - MEMACCESS(1) - "vld2.8 {d0[0], d1[0]}, [%1], %2 \n" - MEMACCESS(1) - "vld2.8 {d0[1], d1[1]}, [%1], %2 \n" - MEMACCESS(1) - "vld2.8 {d0[2], d1[2]}, [%1], %2 \n" - MEMACCESS(1) - "vld2.8 {d0[3], d1[3]}, [%1], %2 \n" - MEMACCESS(1) - "vld2.8 {d0[4], d1[4]}, [%1], %2 \n" - MEMACCESS(1) - "vld2.8 {d0[5], d1[5]}, [%1], %2 \n" - MEMACCESS(1) - "vld2.8 {d0[6], d1[6]}, [%1], %2 \n" - MEMACCESS(1) - "vld2.8 {d0[7], d1[7]}, [%1] \n" - - MEMACCESS(3) - "vst1.64 {d0}, [%3] \n" - MEMACCESS(5) - "vst1.64 {d1}, [%5] \n" - - "4: \n" - - : "=&r"(src_temp), // %0 - "+r"(src), // %1 - "+r"(src_stride), // %2 - "+r"(dst_a), // %3 - "+r"(dst_stride_a), // %4 - "+r"(dst_b), // %5 - "+r"(dst_stride_b), // %6 - "+r"(width) // %7 - : "r"(&kVTbl4x4TransposeDi) // %8 - : "memory", "cc", - "q0", "q1", "q2", "q3", "q8", "q9", "q10", "q11" - ); + // add 8 back to counter. if the result is 0 there are + // no residuals. + "adds %7, #8 \n" + "beq 4f \n" + + // some residual, so between 1 and 7 lines left to transpose + "cmp %7, #2 \n" + "blt 3f \n" + + "cmp %7, #4 \n" + "blt 2f \n" + + // TODO(frkoenig): Clean this up + // 4x8 block + "mov %0, %1 \n" + "vld1.64 {d0}, [%0], %2 \n" + "vld1.64 {d1}, [%0], %2 \n" + "vld1.64 {d2}, [%0], %2 \n" + "vld1.64 {d3}, [%0], %2 \n" + "vld1.64 {d4}, [%0], %2 \n" + "vld1.64 {d5}, [%0], %2 \n" + "vld1.64 {d6}, [%0], %2 \n" + "vld1.64 {d7}, [%0] \n" + + "vld1.8 {q15}, [%8] \n" + + "vtrn.8 q0, q1 \n" + "vtrn.8 q2, q3 \n" + + "vtbl.8 d16, {d0, d1}, d30 \n" + "vtbl.8 d17, {d0, d1}, d31 \n" + "vtbl.8 d18, {d2, d3}, d30 \n" + "vtbl.8 d19, {d2, d3}, d31 \n" + "vtbl.8 d20, {d4, d5}, d30 \n" + "vtbl.8 d21, {d4, d5}, d31 \n" + "vtbl.8 d22, {d6, d7}, d30 \n" + "vtbl.8 d23, {d6, d7}, d31 \n" + + "mov %0, %3 \n" + + "vst1.32 {d16[0]}, [%0], %4 \n" + "vst1.32 {d16[1]}, [%0], %4 \n" + "vst1.32 {d17[0]}, [%0], %4 \n" + "vst1.32 {d17[1]}, [%0], %4 \n" + + "add %0, %3, #4 \n" + "vst1.32 {d20[0]}, [%0], %4 \n" + "vst1.32 {d20[1]}, [%0], %4 \n" + "vst1.32 {d21[0]}, [%0], %4 \n" + "vst1.32 {d21[1]}, [%0] \n" + + "mov %0, %5 \n" + + "vst1.32 {d18[0]}, [%0], %6 \n" + "vst1.32 {d18[1]}, [%0], %6 \n" + "vst1.32 {d19[0]}, [%0], %6 \n" + "vst1.32 {d19[1]}, [%0], %6 \n" + + "add %0, %5, #4 \n" + "vst1.32 {d22[0]}, [%0], %6 \n" + "vst1.32 {d22[1]}, [%0], %6 \n" + "vst1.32 {d23[0]}, [%0], %6 \n" + "vst1.32 {d23[1]}, [%0] \n" + + "add %1, #4*2 \n" // src += 4 * 2 + "add %3, %3, %4, lsl #2 \n" // dst_a += 4 * + // dst_stride_a + "add %5, %5, %6, lsl #2 \n" // dst_b += 4 * + // dst_stride_b + "subs %7, #4 \n" // w -= 4 + "beq 4f \n" + + // some residual, check to see if it includes a 2x8 block, + // or less + "cmp %7, #2 \n" + "blt 3f \n" + + // 2x8 block + "2: \n" + "mov %0, %1 \n" + "vld2.16 {d0[0], d2[0]}, [%0], %2 \n" + "vld2.16 {d1[0], d3[0]}, [%0], %2 \n" + "vld2.16 {d0[1], d2[1]}, [%0], %2 \n" + "vld2.16 {d1[1], d3[1]}, [%0], %2 \n" + "vld2.16 {d0[2], d2[2]}, [%0], %2 \n" + "vld2.16 {d1[2], d3[2]}, [%0], %2 \n" + "vld2.16 {d0[3], d2[3]}, [%0], %2 \n" + "vld2.16 {d1[3], d3[3]}, [%0] \n" + + "vtrn.8 d0, d1 \n" + "vtrn.8 d2, d3 \n" + + "mov %0, %3 \n" + + "vst1.64 {d0}, [%0], %4 \n" + "vst1.64 {d2}, [%0] \n" + + "mov %0, %5 \n" + + "vst1.64 {d1}, [%0], %6 \n" + "vst1.64 {d3}, [%0] \n" + + "add %1, #2*2 \n" // src += 2 * 2 + "add %3, %3, %4, lsl #1 \n" // dst_a += 2 * + // dst_stride_a + "add %5, %5, %6, lsl #1 \n" // dst_b += 2 * + // dst_stride_b + "subs %7, #2 \n" // w -= 2 + "beq 4f \n" + + // 1x8 block + "3: \n" + "vld2.8 {d0[0], d1[0]}, [%1], %2 \n" + "vld2.8 {d0[1], d1[1]}, [%1], %2 \n" + "vld2.8 {d0[2], d1[2]}, [%1], %2 \n" + "vld2.8 {d0[3], d1[3]}, [%1], %2 \n" + "vld2.8 {d0[4], d1[4]}, [%1], %2 \n" + "vld2.8 {d0[5], d1[5]}, [%1], %2 \n" + "vld2.8 {d0[6], d1[6]}, [%1], %2 \n" + "vld2.8 {d0[7], d1[7]}, [%1] \n" + + "vst1.64 {d0}, [%3] \n" + "vst1.64 {d1}, [%5] \n" + + "4: \n" + + : "=&r"(src_temp), // %0 + "+r"(src), // %1 + "+r"(src_stride), // %2 + "+r"(dst_a), // %3 + "+r"(dst_stride_a), // %4 + "+r"(dst_b), // %5 + "+r"(dst_stride_b), // %6 + "+r"(width) // %7 + : "r"(&kVTbl4x4TransposeDi) // %8 + : "memory", "cc", "q0", "q1", "q2", "q3", "q8", "q9", "q10", "q11"); } #endif // defined(__ARM_NEON__) && !defined(__aarch64__) |