diff options
Diffstat (limited to 'media/libvpx/vpx_scale/generic/yv12extend.c')
| -rw-r--r-- | media/libvpx/vpx_scale/generic/yv12extend.c | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/media/libvpx/vpx_scale/generic/yv12extend.c b/media/libvpx/vpx_scale/generic/yv12extend.c new file mode 100644 index 000000000..086e2f398 --- /dev/null +++ b/media/libvpx/vpx_scale/generic/yv12extend.c @@ -0,0 +1,324 @@ +/* + * Copyright (c) 2010 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 <assert.h> +#include "./vpx_config.h" +#include "./vpx_scale_rtcd.h" +#include "vpx/vpx_integer.h" +#include "vpx_mem/vpx_mem.h" +#include "vpx_ports/mem.h" +#include "vpx_scale/yv12config.h" +#if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH +#include "vp9/common/vp9_common.h" +#endif + +static void extend_plane(uint8_t *const src, int src_stride, + int width, int height, + int extend_top, int extend_left, + int extend_bottom, int extend_right) { + int i; + const int linesize = extend_left + extend_right + width; + + /* copy the left and right most columns out */ + uint8_t *src_ptr1 = src; + uint8_t *src_ptr2 = src + width - 1; + uint8_t *dst_ptr1 = src - extend_left; + uint8_t *dst_ptr2 = src + width; + + for (i = 0; i < height; ++i) { + memset(dst_ptr1, src_ptr1[0], extend_left); + memset(dst_ptr2, src_ptr2[0], extend_right); + src_ptr1 += src_stride; + src_ptr2 += src_stride; + dst_ptr1 += src_stride; + dst_ptr2 += src_stride; + } + + /* Now copy the top and bottom lines into each line of the respective + * borders + */ + src_ptr1 = src - extend_left; + src_ptr2 = src + src_stride * (height - 1) - extend_left; + dst_ptr1 = src + src_stride * -extend_top - extend_left; + dst_ptr2 = src + src_stride * height - extend_left; + + for (i = 0; i < extend_top; ++i) { + memcpy(dst_ptr1, src_ptr1, linesize); + dst_ptr1 += src_stride; + } + + for (i = 0; i < extend_bottom; ++i) { + memcpy(dst_ptr2, src_ptr2, linesize); + dst_ptr2 += src_stride; + } +} + +#if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH +static void extend_plane_high(uint8_t *const src8, int src_stride, + int width, int height, + int extend_top, int extend_left, + int extend_bottom, int extend_right) { + int i; + const int linesize = extend_left + extend_right + width; + uint16_t *src = CONVERT_TO_SHORTPTR(src8); + + /* copy the left and right most columns out */ + uint16_t *src_ptr1 = src; + uint16_t *src_ptr2 = src + width - 1; + uint16_t *dst_ptr1 = src - extend_left; + uint16_t *dst_ptr2 = src + width; + + for (i = 0; i < height; ++i) { + vpx_memset16(dst_ptr1, src_ptr1[0], extend_left); + vpx_memset16(dst_ptr2, src_ptr2[0], extend_right); + src_ptr1 += src_stride; + src_ptr2 += src_stride; + dst_ptr1 += src_stride; + dst_ptr2 += src_stride; + } + + /* Now copy the top and bottom lines into each line of the respective + * borders + */ + src_ptr1 = src - extend_left; + src_ptr2 = src + src_stride * (height - 1) - extend_left; + dst_ptr1 = src + src_stride * -extend_top - extend_left; + dst_ptr2 = src + src_stride * height - extend_left; + + for (i = 0; i < extend_top; ++i) { + memcpy(dst_ptr1, src_ptr1, linesize * sizeof(uint16_t)); + dst_ptr1 += src_stride; + } + + for (i = 0; i < extend_bottom; ++i) { + memcpy(dst_ptr2, src_ptr2, linesize * sizeof(uint16_t)); + dst_ptr2 += src_stride; + } +} +#endif + +void vp8_yv12_extend_frame_borders_c(YV12_BUFFER_CONFIG *ybf) { + const int uv_border = ybf->border / 2; + + assert(ybf->border % 2 == 0); + assert(ybf->y_height - ybf->y_crop_height < 16); + assert(ybf->y_width - ybf->y_crop_width < 16); + assert(ybf->y_height - ybf->y_crop_height >= 0); + assert(ybf->y_width - ybf->y_crop_width >= 0); + +#if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH + if (ybf->flags & YV12_FLAG_HIGHBITDEPTH) { + extend_plane_high( + ybf->y_buffer, ybf->y_stride, + ybf->y_crop_width, ybf->y_crop_height, + ybf->border, ybf->border, + ybf->border + ybf->y_height - ybf->y_crop_height, + ybf->border + ybf->y_width - ybf->y_crop_width); + + extend_plane_high( + ybf->u_buffer, ybf->uv_stride, + ybf->uv_crop_width, ybf->uv_crop_height, + uv_border, uv_border, + uv_border + ybf->uv_height - ybf->uv_crop_height, + uv_border + ybf->uv_width - ybf->uv_crop_width); + + extend_plane_high( + ybf->v_buffer, ybf->uv_stride, + ybf->uv_crop_width, ybf->uv_crop_height, + uv_border, uv_border, + uv_border + ybf->uv_height - ybf->uv_crop_height, + uv_border + ybf->uv_width - ybf->uv_crop_width); + return; + } +#endif + extend_plane(ybf->y_buffer, ybf->y_stride, + ybf->y_crop_width, ybf->y_crop_height, + ybf->border, ybf->border, + ybf->border + ybf->y_height - ybf->y_crop_height, + ybf->border + ybf->y_width - ybf->y_crop_width); + + extend_plane(ybf->u_buffer, ybf->uv_stride, + ybf->uv_crop_width, ybf->uv_crop_height, + uv_border, uv_border, + uv_border + ybf->uv_height - ybf->uv_crop_height, + uv_border + ybf->uv_width - ybf->uv_crop_width); + + extend_plane(ybf->v_buffer, ybf->uv_stride, + ybf->uv_crop_width, ybf->uv_crop_height, + uv_border, uv_border, + uv_border + ybf->uv_height - ybf->uv_crop_height, + uv_border + ybf->uv_width - ybf->uv_crop_width); +} + +#if CONFIG_VP9 +static void extend_frame(YV12_BUFFER_CONFIG *const ybf, int ext_size) { + const int c_w = ybf->uv_crop_width; + const int c_h = ybf->uv_crop_height; + const int ss_x = ybf->uv_width < ybf->y_width; + const int ss_y = ybf->uv_height < ybf->y_height; + const int c_et = ext_size >> ss_y; + const int c_el = ext_size >> ss_x; + const int c_eb = c_et + ybf->uv_height - ybf->uv_crop_height; + const int c_er = c_el + ybf->uv_width - ybf->uv_crop_width; + + assert(ybf->y_height - ybf->y_crop_height < 16); + assert(ybf->y_width - ybf->y_crop_width < 16); + assert(ybf->y_height - ybf->y_crop_height >= 0); + assert(ybf->y_width - ybf->y_crop_width >= 0); + +#if CONFIG_VP9_HIGHBITDEPTH + if (ybf->flags & YV12_FLAG_HIGHBITDEPTH) { + extend_plane_high(ybf->y_buffer, ybf->y_stride, + ybf->y_crop_width, ybf->y_crop_height, + ext_size, ext_size, + ext_size + ybf->y_height - ybf->y_crop_height, + ext_size + ybf->y_width - ybf->y_crop_width); + extend_plane_high(ybf->u_buffer, ybf->uv_stride, + c_w, c_h, c_et, c_el, c_eb, c_er); + extend_plane_high(ybf->v_buffer, ybf->uv_stride, + c_w, c_h, c_et, c_el, c_eb, c_er); + return; + } +#endif + extend_plane(ybf->y_buffer, ybf->y_stride, + ybf->y_crop_width, ybf->y_crop_height, + ext_size, ext_size, + ext_size + ybf->y_height - ybf->y_crop_height, + ext_size + ybf->y_width - ybf->y_crop_width); + + extend_plane(ybf->u_buffer, ybf->uv_stride, + c_w, c_h, c_et, c_el, c_eb, c_er); + + extend_plane(ybf->v_buffer, ybf->uv_stride, + c_w, c_h, c_et, c_el, c_eb, c_er); +} + +void vp9_extend_frame_borders_c(YV12_BUFFER_CONFIG *ybf) { + extend_frame(ybf, ybf->border); +} + +void vp9_extend_frame_inner_borders_c(YV12_BUFFER_CONFIG *ybf) { + const int inner_bw = (ybf->border > VP9INNERBORDERINPIXELS) ? + VP9INNERBORDERINPIXELS : ybf->border; + extend_frame(ybf, inner_bw); +} + +#if CONFIG_VP9_HIGHBITDEPTH +void memcpy_short_addr(uint8_t *dst8, const uint8_t *src8, int num) { + uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); + uint16_t *src = CONVERT_TO_SHORTPTR(src8); + memcpy(dst, src, num * sizeof(uint16_t)); +} +#endif // CONFIG_VP9_HIGHBITDEPTH +#endif // CONFIG_VP9 + +// Copies the source image into the destination image and updates the +// destination's UMV borders. +// Note: The frames are assumed to be identical in size. +void vp8_yv12_copy_frame_c(const YV12_BUFFER_CONFIG *src_ybc, + YV12_BUFFER_CONFIG *dst_ybc) { + int row; + const uint8_t *src = src_ybc->y_buffer; + uint8_t *dst = dst_ybc->y_buffer; + +#if 0 + /* These assertions are valid in the codec, but the libvpx-tester uses + * this code slightly differently. + */ + assert(src_ybc->y_width == dst_ybc->y_width); + assert(src_ybc->y_height == dst_ybc->y_height); +#endif + +#if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH + if (src_ybc->flags & YV12_FLAG_HIGHBITDEPTH) { + assert(dst_ybc->flags & YV12_FLAG_HIGHBITDEPTH); + for (row = 0; row < src_ybc->y_height; ++row) { + memcpy_short_addr(dst, src, src_ybc->y_width); + src += src_ybc->y_stride; + dst += dst_ybc->y_stride; + } + + src = src_ybc->u_buffer; + dst = dst_ybc->u_buffer; + + for (row = 0; row < src_ybc->uv_height; ++row) { + memcpy_short_addr(dst, src, src_ybc->uv_width); + src += src_ybc->uv_stride; + dst += dst_ybc->uv_stride; + } + + src = src_ybc->v_buffer; + dst = dst_ybc->v_buffer; + + for (row = 0; row < src_ybc->uv_height; ++row) { + memcpy_short_addr(dst, src, src_ybc->uv_width); + src += src_ybc->uv_stride; + dst += dst_ybc->uv_stride; + } + + vp8_yv12_extend_frame_borders_c(dst_ybc); + return; + } else { + assert(!(dst_ybc->flags & YV12_FLAG_HIGHBITDEPTH)); + } +#endif + + for (row = 0; row < src_ybc->y_height; ++row) { + memcpy(dst, src, src_ybc->y_width); + src += src_ybc->y_stride; + dst += dst_ybc->y_stride; + } + + src = src_ybc->u_buffer; + dst = dst_ybc->u_buffer; + + for (row = 0; row < src_ybc->uv_height; ++row) { + memcpy(dst, src, src_ybc->uv_width); + src += src_ybc->uv_stride; + dst += dst_ybc->uv_stride; + } + + src = src_ybc->v_buffer; + dst = dst_ybc->v_buffer; + + for (row = 0; row < src_ybc->uv_height; ++row) { + memcpy(dst, src, src_ybc->uv_width); + src += src_ybc->uv_stride; + dst += dst_ybc->uv_stride; + } + + vp8_yv12_extend_frame_borders_c(dst_ybc); +} + +void vpx_yv12_copy_y_c(const YV12_BUFFER_CONFIG *src_ybc, + YV12_BUFFER_CONFIG *dst_ybc) { + int row; + const uint8_t *src = src_ybc->y_buffer; + uint8_t *dst = dst_ybc->y_buffer; + +#if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH + if (src_ybc->flags & YV12_FLAG_HIGHBITDEPTH) { + const uint16_t *src16 = CONVERT_TO_SHORTPTR(src); + uint16_t *dst16 = CONVERT_TO_SHORTPTR(dst); + for (row = 0; row < src_ybc->y_height; ++row) { + memcpy(dst16, src16, src_ybc->y_width * sizeof(uint16_t)); + src16 += src_ybc->y_stride; + dst16 += dst_ybc->y_stride; + } + return; + } +#endif + + for (row = 0; row < src_ybc->y_height; ++row) { + memcpy(dst, src, src_ybc->y_width); + src += src_ybc->y_stride; + dst += dst_ybc->y_stride; + } +} |