From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- third_party/aom/aom_scale/generic/gen_scalers.c | 201 ++++++++++++++++++++++++ 1 file changed, 201 insertions(+) create mode 100644 third_party/aom/aom_scale/generic/gen_scalers.c (limited to 'third_party/aom/aom_scale/generic/gen_scalers.c') diff --git a/third_party/aom/aom_scale/generic/gen_scalers.c b/third_party/aom/aom_scale/generic/gen_scalers.c new file mode 100644 index 0000000000..549e2aa690 --- /dev/null +++ b/third_party/aom/aom_scale/generic/gen_scalers.c @@ -0,0 +1,201 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#include "config/aom_scale_rtcd.h" + +#include "aom_scale/aom_scale.h" +#include "aom_mem/aom_mem.h" +/**************************************************************************** + * Imports + ****************************************************************************/ + +/**************************************************************************** + * + * + * INPUTS : const unsigned char *source : Pointer to source data. + * unsigned int source_width : Stride of source. + * unsigned char *dest : Pointer to destination data. + * unsigned int dest_width : Stride of destination + * (NOT USED). + * + * OUTPUTS : None. + * + * RETURNS : void + * + * FUNCTION : Copies horizontal line of pixels from source to + * destination scaling up by 4 to 5. + * + * SPECIAL NOTES : None. + * + ****************************************************************************/ +void aom_horizontal_line_5_4_scale_c(const unsigned char *source, + unsigned int source_width, + unsigned char *dest, + unsigned int dest_width) { + const unsigned char *const source_end = source + source_width; + (void)dest_width; + + while (source < source_end) { + const unsigned int a = source[0]; + const unsigned int b = source[1]; + const unsigned int c = source[2]; + const unsigned int d = source[3]; + const unsigned int e = source[4]; + + dest[0] = (unsigned char)a; + dest[1] = (unsigned char)((b * 192 + c * 64 + 128) >> 8); + dest[2] = (unsigned char)((c * 128 + d * 128 + 128) >> 8); + dest[3] = (unsigned char)((d * 64 + e * 192 + 128) >> 8); + + source += 5; + dest += 4; + } +} + +void aom_vertical_band_5_4_scale_c(unsigned char *source, int src_pitch, + unsigned char *dest, int dest_pitch, + unsigned int dest_width) { + const unsigned char *const dest_end = dest + dest_width; + while (dest < dest_end) { + const unsigned int a = source[0 * src_pitch]; + const unsigned int b = source[1 * src_pitch]; + const unsigned int c = source[2 * src_pitch]; + const unsigned int d = source[3 * src_pitch]; + const unsigned int e = source[4 * src_pitch]; + + dest[0 * dest_pitch] = (unsigned char)a; + dest[1 * dest_pitch] = (unsigned char)((b * 192 + c * 64 + 128) >> 8); + dest[2 * dest_pitch] = (unsigned char)((c * 128 + d * 128 + 128) >> 8); + dest[3 * dest_pitch] = (unsigned char)((d * 64 + e * 192 + 128) >> 8); + + ++source; + ++dest; + } +} + +/*7*************************************************************************** + * + * ROUTINE : aom_horizontal_line_3_5_scale_c + * + * INPUTS : const unsigned char *source : Pointer to source data. + * unsigned int source_width : Stride of source. + * unsigned char *dest : Pointer to destination data. + * unsigned int dest_width : Stride of destination + * (NOT USED). + * + * OUTPUTS : None. + * + * RETURNS : void + * + * FUNCTION : Copies horizontal line of pixels from source to + * destination scaling up by 3 to 5. + * + * SPECIAL NOTES : None. + * + * + ****************************************************************************/ +void aom_horizontal_line_5_3_scale_c(const unsigned char *source, + unsigned int source_width, + unsigned char *dest, + unsigned int dest_width) { + const unsigned char *const source_end = source + source_width; + (void)dest_width; + while (source < source_end) { + const unsigned int a = source[0]; + const unsigned int b = source[1]; + const unsigned int c = source[2]; + const unsigned int d = source[3]; + const unsigned int e = source[4]; + + dest[0] = (unsigned char)a; + dest[1] = (unsigned char)((b * 85 + c * 171 + 128) >> 8); + dest[2] = (unsigned char)((d * 171 + e * 85 + 128) >> 8); + + source += 5; + dest += 3; + } +} + +void aom_vertical_band_5_3_scale_c(unsigned char *source, int src_pitch, + unsigned char *dest, int dest_pitch, + unsigned int dest_width) { + const unsigned char *const dest_end = dest + dest_width; + while (dest < dest_end) { + const unsigned int a = source[0 * src_pitch]; + const unsigned int b = source[1 * src_pitch]; + const unsigned int c = source[2 * src_pitch]; + const unsigned int d = source[3 * src_pitch]; + const unsigned int e = source[4 * src_pitch]; + + dest[0 * dest_pitch] = (unsigned char)a; + dest[1 * dest_pitch] = (unsigned char)((b * 85 + c * 171 + 128) >> 8); + dest[2 * dest_pitch] = (unsigned char)((d * 171 + e * 85 + 128) >> 8); + + ++source; + ++dest; + } +} + +/**************************************************************************** + * + * ROUTINE : aom_horizontal_line_1_2_scale_c + * + * INPUTS : const unsigned char *source : Pointer to source data. + * unsigned int source_width : Stride of source. + * unsigned char *dest : Pointer to destination data. + * unsigned int dest_width : Stride of destination + * (NOT USED). + * + * OUTPUTS : None. + * + * RETURNS : void + * + * FUNCTION : Copies horizontal line of pixels from source to + * destination scaling up by 1 to 2. + * + * SPECIAL NOTES : None. + * + ****************************************************************************/ +void aom_horizontal_line_2_1_scale_c(const unsigned char *source, + unsigned int source_width, + unsigned char *dest, + unsigned int dest_width) { + const unsigned char *const source_end = source + source_width; + (void)dest_width; + while (source < source_end) { + dest[0] = source[0]; + source += 2; + ++dest; + } +} + +void aom_vertical_band_2_1_scale_c(unsigned char *source, int src_pitch, + unsigned char *dest, int dest_pitch, + unsigned int dest_width) { + (void)dest_pitch; + (void)src_pitch; + memcpy(dest, source, dest_width); +} + +void aom_vertical_band_2_1_scale_i_c(unsigned char *source, int src_pitch, + unsigned char *dest, int dest_pitch, + unsigned int dest_width) { + const unsigned char *const dest_end = dest + dest_width; + (void)dest_pitch; + while (dest < dest_end) { + const unsigned int a = source[-src_pitch] * 3; + const unsigned int b = source[0] * 10; + const unsigned int c = source[src_pitch] * 3; + dest[0] = (unsigned char)((8 + a + b + c) >> 4); + ++source; + ++dest; + } +} -- cgit v1.2.3