mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
7daba17fb2
This updates our in-tree copy of libvpx to the v1.3.0 git tag (2e88f2f2ec777259bda1714e72f1ecd2519bceb5) libvpx 1.3.0 adds support for VP9. VP9 support is built but not yet exposed with this commit. Our update.sh script is replaced with update.py that can update the build system to a given git commit. - checkout out upstream git - create platform dependend config files - add/remove changed libvpx files - update moz.build - warn about new build categories in libvpx
241 lines
7.3 KiB
C
241 lines
7.3 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "vpx_scale/vpx_scale.h"
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#include "vpx_mem/vpx_mem.h"
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/****************************************************************************
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* Imports
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****************************************************************************/
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/****************************************************************************
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*
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*
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* INPUTS : const unsigned char *source : Pointer to source data.
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* unsigned int source_width : Stride of source.
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* unsigned char *dest : Pointer to destination data.
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* unsigned int dest_width : Stride of destination (NOT USED).
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*
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* OUTPUTS : None.
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*
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* RETURNS : void
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*
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* FUNCTION : Copies horizontal line of pixels from source to
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* destination scaling up by 4 to 5.
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*
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* SPECIAL NOTES : None.
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*
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****************************************************************************/
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void vp8_horizontal_line_5_4_scale_c(const unsigned char *source,
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unsigned int source_width,
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unsigned char *dest,
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unsigned int dest_width) {
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unsigned i;
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unsigned int a, b, c, d, e;
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unsigned char *des = dest;
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const unsigned char *src = source;
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(void) dest_width;
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for (i = 0; i < source_width; i += 5) {
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a = src[0];
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b = src[1];
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c = src[2];
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d = src[3];
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e = src[4];
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des[0] = (unsigned char) a;
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des[1] = (unsigned char)((b * 192 + c * 64 + 128) >> 8);
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des[2] = (unsigned char)((c * 128 + d * 128 + 128) >> 8);
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des[3] = (unsigned char)((d * 64 + e * 192 + 128) >> 8);
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src += 5;
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des += 4;
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}
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}
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void vp8_vertical_band_5_4_scale_c(unsigned char *source,
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unsigned int src_pitch,
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unsigned char *dest,
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unsigned int dest_pitch,
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unsigned int dest_width) {
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unsigned int i;
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unsigned int a, b, c, d, e;
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unsigned char *des = dest;
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unsigned char *src = source;
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for (i = 0; i < dest_width; i++) {
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a = src[0 * src_pitch];
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b = src[1 * src_pitch];
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c = src[2 * src_pitch];
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d = src[3 * src_pitch];
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e = src[4 * src_pitch];
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des[0 * dest_pitch] = (unsigned char) a;
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des[1 * dest_pitch] = (unsigned char)((b * 192 + c * 64 + 128) >> 8);
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des[2 * dest_pitch] = (unsigned char)((c * 128 + d * 128 + 128) >> 8);
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des[3 * dest_pitch] = (unsigned char)((d * 64 + e * 192 + 128) >> 8);
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src++;
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des++;
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}
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}
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/*7***************************************************************************
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*
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* ROUTINE : vp8_horizontal_line_3_5_scale_c
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*
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* INPUTS : const unsigned char *source : Pointer to source data.
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* unsigned int source_width : Stride of source.
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* unsigned char *dest : Pointer to destination data.
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* unsigned int dest_width : Stride of destination (NOT USED).
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*
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* OUTPUTS : None.
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*
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* RETURNS : void
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*
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* FUNCTION : Copies horizontal line of pixels from source to
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* destination scaling up by 3 to 5.
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*
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* SPECIAL NOTES : None.
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*
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*
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****************************************************************************/
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void vp8_horizontal_line_5_3_scale_c(const unsigned char *source,
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unsigned int source_width,
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unsigned char *dest,
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unsigned int dest_width) {
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unsigned int i;
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unsigned int a, b, c, d, e;
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unsigned char *des = dest;
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const unsigned char *src = source;
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(void) dest_width;
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for (i = 0; i < source_width; i += 5) {
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a = src[0];
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b = src[1];
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c = src[2];
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d = src[3];
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e = src[4];
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des[0] = (unsigned char) a;
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des[1] = (unsigned char)((b * 85 + c * 171 + 128) >> 8);
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des[2] = (unsigned char)((d * 171 + e * 85 + 128) >> 8);
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src += 5;
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des += 3;
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}
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}
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void vp8_vertical_band_5_3_scale_c(unsigned char *source,
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unsigned int src_pitch,
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unsigned char *dest,
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unsigned int dest_pitch,
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unsigned int dest_width) {
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unsigned int i;
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unsigned int a, b, c, d, e;
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unsigned char *des = dest;
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unsigned char *src = source;
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for (i = 0; i < dest_width; i++) {
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a = src[0 * src_pitch];
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b = src[1 * src_pitch];
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c = src[2 * src_pitch];
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d = src[3 * src_pitch];
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e = src[4 * src_pitch];
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des[0 * dest_pitch] = (unsigned char) a;
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des[1 * dest_pitch] = (unsigned char)((b * 85 + c * 171 + 128) >> 8);
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des[2 * dest_pitch] = (unsigned char)((d * 171 + e * 85 + 128) >> 8);
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src++;
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des++;
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}
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}
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/****************************************************************************
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*
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* ROUTINE : vp8_horizontal_line_1_2_scale_c
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*
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* INPUTS : const unsigned char *source : Pointer to source data.
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* unsigned int source_width : Stride of source.
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* unsigned char *dest : Pointer to destination data.
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* unsigned int dest_width : Stride of destination (NOT USED).
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*
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* OUTPUTS : None.
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*
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* RETURNS : void
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*
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* FUNCTION : Copies horizontal line of pixels from source to
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* destination scaling up by 1 to 2.
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*
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* SPECIAL NOTES : None.
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*
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****************************************************************************/
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void vp8_horizontal_line_2_1_scale_c(const unsigned char *source,
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unsigned int source_width,
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unsigned char *dest,
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unsigned int dest_width) {
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unsigned int i;
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unsigned int a;
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unsigned char *des = dest;
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const unsigned char *src = source;
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(void) dest_width;
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for (i = 0; i < source_width; i += 2) {
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a = src[0];
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des [0] = (unsigned char)(a);
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src += 2;
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des += 1;
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}
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}
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void vp8_vertical_band_2_1_scale_c(unsigned char *source,
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unsigned int src_pitch,
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unsigned char *dest,
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unsigned int dest_pitch,
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unsigned int dest_width) {
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(void) dest_pitch;
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(void) src_pitch;
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vpx_memcpy(dest, source, dest_width);
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}
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void vp8_vertical_band_2_1_scale_i_c(unsigned char *source,
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unsigned int src_pitch,
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unsigned char *dest,
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unsigned int dest_pitch,
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unsigned int dest_width) {
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int i;
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int temp;
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int width = dest_width;
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(void) dest_pitch;
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for (i = 0; i < width; i++) {
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temp = 8;
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temp += source[i - (int)src_pitch] * 3;
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temp += source[i] * 10;
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temp += source[i + src_pitch] * 3;
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temp >>= 4;
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dest[i] = (unsigned char)(temp);
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}
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}
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