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-rw-r--r--vp8/common/extend.c297
1 files changed, 144 insertions, 153 deletions
diff --git a/vp8/common/extend.c b/vp8/common/extend.c
index 9089e1629..6ea745605 100644
--- a/vp8/common/extend.c
+++ b/vp8/common/extend.c
@@ -15,171 +15,162 @@
static void copy_and_extend_plane
(
- unsigned char *s, /* source */
- int sp, /* source pitch */
- unsigned char *d, /* destination */
- int dp, /* destination pitch */
- int h, /* height */
- int w, /* width */
- int et, /* extend top border */
- int el, /* extend left border */
- int eb, /* extend bottom border */
- int er /* extend right border */
-)
-{
- int i;
- unsigned char *src_ptr1, *src_ptr2;
- unsigned char *dest_ptr1, *dest_ptr2;
- int linesize;
-
- /* copy the left and right most columns out */
- src_ptr1 = s;
- src_ptr2 = s + w - 1;
- dest_ptr1 = d - el;
- dest_ptr2 = d + w;
-
- for (i = 0; i < h; i++)
- {
- vpx_memset(dest_ptr1, src_ptr1[0], el);
- vpx_memcpy(dest_ptr1 + el, src_ptr1, w);
- vpx_memset(dest_ptr2, src_ptr2[0], er);
- src_ptr1 += sp;
- src_ptr2 += sp;
- dest_ptr1 += dp;
- dest_ptr2 += dp;
- }
-
- /* Now copy the top and bottom lines into each line of the respective
- * borders
- */
- src_ptr1 = d - el;
- src_ptr2 = d + dp * (h - 1) - el;
- dest_ptr1 = d + dp * (-et) - el;
- dest_ptr2 = d + dp * (h) - el;
- linesize = el + er + w;
-
- for (i = 0; i < et; i++)
- {
- vpx_memcpy(dest_ptr1, src_ptr1, linesize);
- dest_ptr1 += dp;
- }
-
- for (i = 0; i < eb; i++)
- {
- vpx_memcpy(dest_ptr2, src_ptr2, linesize);
- dest_ptr2 += dp;
- }
+ unsigned char *s, /* source */
+ int sp, /* source pitch */
+ unsigned char *d, /* destination */
+ int dp, /* destination pitch */
+ int h, /* height */
+ int w, /* width */
+ int et, /* extend top border */
+ int el, /* extend left border */
+ int eb, /* extend bottom border */
+ int er /* extend right border */
+) {
+ int i;
+ unsigned char *src_ptr1, *src_ptr2;
+ unsigned char *dest_ptr1, *dest_ptr2;
+ int linesize;
+
+ /* copy the left and right most columns out */
+ src_ptr1 = s;
+ src_ptr2 = s + w - 1;
+ dest_ptr1 = d - el;
+ dest_ptr2 = d + w;
+
+ for (i = 0; i < h; i++) {
+ vpx_memset(dest_ptr1, src_ptr1[0], el);
+ vpx_memcpy(dest_ptr1 + el, src_ptr1, w);
+ vpx_memset(dest_ptr2, src_ptr2[0], er);
+ src_ptr1 += sp;
+ src_ptr2 += sp;
+ dest_ptr1 += dp;
+ dest_ptr2 += dp;
+ }
+
+ /* Now copy the top and bottom lines into each line of the respective
+ * borders
+ */
+ src_ptr1 = d - el;
+ src_ptr2 = d + dp * (h - 1) - el;
+ dest_ptr1 = d + dp * (-et) - el;
+ dest_ptr2 = d + dp * (h) - el;
+ linesize = el + er + w;
+
+ for (i = 0; i < et; i++) {
+ vpx_memcpy(dest_ptr1, src_ptr1, linesize);
+ dest_ptr1 += dp;
+ }
+
+ for (i = 0; i < eb; i++) {
+ vpx_memcpy(dest_ptr2, src_ptr2, linesize);
+ dest_ptr2 += dp;
+ }
}
void vp8_copy_and_extend_frame(YV12_BUFFER_CONFIG *src,
- YV12_BUFFER_CONFIG *dst)
-{
- int et = dst->border;
- int el = dst->border;
- int eb = dst->border + dst->y_height - src->y_height;
- int er = dst->border + dst->y_width - src->y_width;
-
- copy_and_extend_plane(src->y_buffer, src->y_stride,
- dst->y_buffer, dst->y_stride,
- src->y_height, src->y_width,
- et, el, eb, er);
-
- et = dst->border >> 1;
- el = dst->border >> 1;
- eb = (dst->border >> 1) + dst->uv_height - src->uv_height;
- er = (dst->border >> 1) + dst->uv_width - src->uv_width;
-
- copy_and_extend_plane(src->u_buffer, src->uv_stride,
- dst->u_buffer, dst->uv_stride,
- src->uv_height, src->uv_width,
- et, el, eb, er);
-
- copy_and_extend_plane(src->v_buffer, src->uv_stride,
- dst->v_buffer, dst->uv_stride,
- src->uv_height, src->uv_width,
- et, el, eb, er);
+ YV12_BUFFER_CONFIG *dst) {
+ int et = dst->border;
+ int el = dst->border;
+ int eb = dst->border + dst->y_height - src->y_height;
+ int er = dst->border + dst->y_width - src->y_width;
+
+ copy_and_extend_plane(src->y_buffer, src->y_stride,
+ dst->y_buffer, dst->y_stride,
+ src->y_height, src->y_width,
+ et, el, eb, er);
+
+ et = dst->border >> 1;
+ el = dst->border >> 1;
+ eb = (dst->border >> 1) + dst->uv_height - src->uv_height;
+ er = (dst->border >> 1) + dst->uv_width - src->uv_width;
+
+ copy_and_extend_plane(src->u_buffer, src->uv_stride,
+ dst->u_buffer, dst->uv_stride,
+ src->uv_height, src->uv_width,
+ et, el, eb, er);
+
+ copy_and_extend_plane(src->v_buffer, src->uv_stride,
+ dst->v_buffer, dst->uv_stride,
+ src->uv_height, src->uv_width,
+ et, el, eb, er);
}
void vp8_copy_and_extend_frame_with_rect(YV12_BUFFER_CONFIG *src,
YV12_BUFFER_CONFIG *dst,
int srcy, int srcx,
- int srch, int srcw)
-{
- int et = dst->border;
- int el = dst->border;
- int eb = dst->border + dst->y_height - src->y_height;
- int er = dst->border + dst->y_width - src->y_width;
- int src_y_offset = srcy * src->y_stride + srcx;
- int dst_y_offset = srcy * dst->y_stride + srcx;
- int src_uv_offset = ((srcy * src->uv_stride) >> 1) + (srcx >> 1);
- int dst_uv_offset = ((srcy * dst->uv_stride) >> 1) + (srcx >> 1);
-
- // If the side is not touching the bounder then don't extend.
- if (srcy)
- et = 0;
- if (srcx)
- el = 0;
- if (srcy + srch != src->y_height)
- eb = 0;
- if (srcx + srcw != src->y_width)
- er = 0;
-
- copy_and_extend_plane(src->y_buffer + src_y_offset,
- src->y_stride,
- dst->y_buffer + dst_y_offset,
- dst->y_stride,
- srch, srcw,
- et, el, eb, er);
-
- et = (et + 1) >> 1;
- el = (el + 1) >> 1;
- eb = (eb + 1) >> 1;
- er = (er + 1) >> 1;
- srch = (srch + 1) >> 1;
- srcw = (srcw + 1) >> 1;
-
- copy_and_extend_plane(src->u_buffer + src_uv_offset,
- src->uv_stride,
- dst->u_buffer + dst_uv_offset,
- dst->uv_stride,
- srch, srcw,
- et, el, eb, er);
-
- copy_and_extend_plane(src->v_buffer + src_uv_offset,
- src->uv_stride,
- dst->v_buffer + dst_uv_offset,
- dst->uv_stride,
- srch, srcw,
- et, el, eb, er);
+ int srch, int srcw) {
+ int et = dst->border;
+ int el = dst->border;
+ int eb = dst->border + dst->y_height - src->y_height;
+ int er = dst->border + dst->y_width - src->y_width;
+ int src_y_offset = srcy * src->y_stride + srcx;
+ int dst_y_offset = srcy * dst->y_stride + srcx;
+ int src_uv_offset = ((srcy * src->uv_stride) >> 1) + (srcx >> 1);
+ int dst_uv_offset = ((srcy * dst->uv_stride) >> 1) + (srcx >> 1);
+
+ // If the side is not touching the bounder then don't extend.
+ if (srcy)
+ et = 0;
+ if (srcx)
+ el = 0;
+ if (srcy + srch != src->y_height)
+ eb = 0;
+ if (srcx + srcw != src->y_width)
+ er = 0;
+
+ copy_and_extend_plane(src->y_buffer + src_y_offset,
+ src->y_stride,
+ dst->y_buffer + dst_y_offset,
+ dst->y_stride,
+ srch, srcw,
+ et, el, eb, er);
+
+ et = (et + 1) >> 1;
+ el = (el + 1) >> 1;
+ eb = (eb + 1) >> 1;
+ er = (er + 1) >> 1;
+ srch = (srch + 1) >> 1;
+ srcw = (srcw + 1) >> 1;
+
+ copy_and_extend_plane(src->u_buffer + src_uv_offset,
+ src->uv_stride,
+ dst->u_buffer + dst_uv_offset,
+ dst->uv_stride,
+ srch, srcw,
+ et, el, eb, er);
+
+ copy_and_extend_plane(src->v_buffer + src_uv_offset,
+ src->uv_stride,
+ dst->v_buffer + dst_uv_offset,
+ dst->uv_stride,
+ srch, srcw,
+ et, el, eb, er);
}
/* note the extension is only for the last row, for intra prediction purpose */
-void vp8_extend_mb_row(YV12_BUFFER_CONFIG *ybf, unsigned char *YPtr, unsigned char *UPtr, unsigned char *VPtr)
-{
- int i;
-
- YPtr += ybf->y_stride * 14;
- UPtr += ybf->uv_stride * 6;
- VPtr += ybf->uv_stride * 6;
-
- for (i = 0; i < 4; i++)
- {
- YPtr[i] = YPtr[-1];
- UPtr[i] = UPtr[-1];
- VPtr[i] = VPtr[-1];
- }
-
- YPtr += ybf->y_stride;
- UPtr += ybf->uv_stride;
- VPtr += ybf->uv_stride;
-
- for (i = 0; i < 4; i++)
- {
- YPtr[i] = YPtr[-1];
- UPtr[i] = UPtr[-1];
- VPtr[i] = VPtr[-1];
- }
+void vp8_extend_mb_row(YV12_BUFFER_CONFIG *ybf, unsigned char *YPtr, unsigned char *UPtr, unsigned char *VPtr) {
+ int i;
+
+ YPtr += ybf->y_stride * 14;
+ UPtr += ybf->uv_stride * 6;
+ VPtr += ybf->uv_stride * 6;
+
+ for (i = 0; i < 4; i++) {
+ YPtr[i] = YPtr[-1];
+ UPtr[i] = UPtr[-1];
+ VPtr[i] = VPtr[-1];
+ }
+
+ YPtr += ybf->y_stride;
+ UPtr += ybf->uv_stride;
+ VPtr += ybf->uv_stride;
+
+ for (i = 0; i < 4; i++) {
+ YPtr[i] = YPtr[-1];
+ UPtr[i] = UPtr[-1];
+ VPtr[i] = VPtr[-1];
+ }
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-14 13:19:10 +0000