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Diffstat (limited to '')
-rw-r--r-- | media/libvpx/libvpx/vpx_dsp/arm/idct8x8_add_neon.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/arm/idct8x8_add_neon.c b/media/libvpx/libvpx/vpx_dsp/arm/idct8x8_add_neon.c new file mode 100644 index 0000000000..7471387e47 --- /dev/null +++ b/media/libvpx/libvpx/vpx_dsp/arm/idct8x8_add_neon.c @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2014 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include <arm_neon.h> + +#include "./vpx_config.h" +#include "./vpx_dsp_rtcd.h" +#include "vpx_dsp/arm/idct_neon.h" +#include "vpx_dsp/arm/mem_neon.h" +#include "vpx_dsp/arm/transpose_neon.h" +#include "vpx_dsp/txfm_common.h" + +void vpx_idct8x8_64_add_neon(const tran_low_t *input, uint8_t *dest, + int stride) { + const int16x8_t cospis = vld1q_s16(kCospi); + const int16x4_t cospis0 = vget_low_s16(cospis); // cospi 0, 8, 16, 24 + const int16x4_t cospis1 = vget_high_s16(cospis); // cospi 4, 12, 20, 28 + int16x8_t a[8]; + + a[0] = load_tran_low_to_s16q(input); + a[1] = load_tran_low_to_s16q(input + 8); + a[2] = load_tran_low_to_s16q(input + 16); + a[3] = load_tran_low_to_s16q(input + 24); + a[4] = load_tran_low_to_s16q(input + 32); + a[5] = load_tran_low_to_s16q(input + 40); + a[6] = load_tran_low_to_s16q(input + 48); + a[7] = load_tran_low_to_s16q(input + 56); + + idct8x8_64_1d_bd8(cospis0, cospis1, a); + idct8x8_64_1d_bd8(cospis0, cospis1, a); + idct8x8_add8x8_neon(a, dest, stride); +} + +void vpx_idct8x8_12_add_neon(const tran_low_t *input, uint8_t *dest, + int stride) { + const int16x8_t cospis = vld1q_s16(kCospi); + const int16x8_t cospisd = vaddq_s16(cospis, cospis); + const int16x4_t cospis0 = vget_low_s16(cospis); // cospi 0, 8, 16, 24 + const int16x4_t cospisd0 = vget_low_s16(cospisd); // doubled 0, 8, 16, 24 + const int16x4_t cospisd1 = vget_high_s16(cospisd); // doubled 4, 12, 20, 28 + int16x4_t a[8]; + int16x8_t b[8]; + + a[0] = load_tran_low_to_s16d(input); + a[1] = load_tran_low_to_s16d(input + 8); + a[2] = load_tran_low_to_s16d(input + 16); + a[3] = load_tran_low_to_s16d(input + 24); + + idct8x8_12_pass1_bd8(cospis0, cospisd0, cospisd1, a); + idct8x8_12_pass2_bd8(cospis0, cospisd0, cospisd1, a, b); + idct8x8_add8x8_neon(b, dest, stride); +} |