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Diffstat (limited to 'media/libvpx/libvpx/vpx_scale/generic/yv12extend.c')
-rw-r--r--media/libvpx/libvpx/vpx_scale/generic/yv12extend.c335
1 files changed, 335 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_scale/generic/yv12extend.c b/media/libvpx/libvpx/vpx_scale/generic/yv12extend.c
new file mode 100644
index 0000000000..e231806505
--- /dev/null
+++ b/media/libvpx/libvpx/vpx_scale/generic/yv12extend.c
@@ -0,0 +1,335 @@
+/*
+ * 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_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_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);
+
+ 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 vpx_extend_frame_borders_c(YV12_BUFFER_CONFIG *ybf) {
+ extend_frame(ybf, ybf->border);
+}
+
+void vpx_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
+static 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
+
+ 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);
+}
+
+#if CONFIG_VP9
+void vpx_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_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;
+ }
+
+ vpx_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;
+ }
+
+ vpx_extend_frame_borders_c(dst_ybc);
+}
+#endif // CONFIG_VP9
+
+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_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;
+ }
+}
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