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-rw-r--r--files/source/scale_common.cc1834
1 files changed, 0 insertions, 1834 deletions
diff --git a/files/source/scale_common.cc b/files/source/scale_common.cc
deleted file mode 100644
index b02bdafd..00000000
--- a/files/source/scale_common.cc
+++ /dev/null
@@ -1,1834 +0,0 @@
-/*
- * Copyright 2013 The LibYuv 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 "libyuv/scale.h"
-
-#include <assert.h>
-#include <string.h>
-
-#include "libyuv/cpu_id.h"
-#include "libyuv/planar_functions.h" // For CopyARGB
-#include "libyuv/row.h"
-#include "libyuv/scale_row.h"
-
-#ifdef __cplusplus
-namespace libyuv {
-extern "C" {
-#endif
-
-static __inline int Abs(int v) {
- return v >= 0 ? v : -v;
-}
-
-// CPU agnostic row functions
-void ScaleRowDown2_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* dst,
- int dst_width) {
- int x;
- (void)src_stride;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = src_ptr[1];
- dst[1] = src_ptr[3];
- dst += 2;
- src_ptr += 4;
- }
- if (dst_width & 1) {
- dst[0] = src_ptr[1];
- }
-}
-
-void ScaleRowDown2_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* dst,
- int dst_width) {
- int x;
- (void)src_stride;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = src_ptr[1];
- dst[1] = src_ptr[3];
- dst += 2;
- src_ptr += 4;
- }
- if (dst_width & 1) {
- dst[0] = src_ptr[1];
- }
-}
-
-void ScaleRowDown2Linear_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* dst,
- int dst_width) {
- const uint8_t* s = src_ptr;
- int x;
- (void)src_stride;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = (s[0] + s[1] + 1) >> 1;
- dst[1] = (s[2] + s[3] + 1) >> 1;
- dst += 2;
- s += 4;
- }
- if (dst_width & 1) {
- dst[0] = (s[0] + s[1] + 1) >> 1;
- }
-}
-
-void ScaleRowDown2Linear_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* dst,
- int dst_width) {
- const uint16_t* s = src_ptr;
- int x;
- (void)src_stride;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = (s[0] + s[1] + 1) >> 1;
- dst[1] = (s[2] + s[3] + 1) >> 1;
- dst += 2;
- s += 4;
- }
- if (dst_width & 1) {
- dst[0] = (s[0] + s[1] + 1) >> 1;
- }
-}
-
-void ScaleRowDown2Box_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* dst,
- int dst_width) {
- const uint8_t* s = src_ptr;
- const uint8_t* t = src_ptr + src_stride;
- int x;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = (s[0] + s[1] + t[0] + t[1] + 2) >> 2;
- dst[1] = (s[2] + s[3] + t[2] + t[3] + 2) >> 2;
- dst += 2;
- s += 4;
- t += 4;
- }
- if (dst_width & 1) {
- dst[0] = (s[0] + s[1] + t[0] + t[1] + 2) >> 2;
- }
-}
-
-void ScaleRowDown2Box_Odd_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* dst,
- int dst_width) {
- const uint8_t* s = src_ptr;
- const uint8_t* t = src_ptr + src_stride;
- int x;
- dst_width -= 1;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = (s[0] + s[1] + t[0] + t[1] + 2) >> 2;
- dst[1] = (s[2] + s[3] + t[2] + t[3] + 2) >> 2;
- dst += 2;
- s += 4;
- t += 4;
- }
- if (dst_width & 1) {
- dst[0] = (s[0] + s[1] + t[0] + t[1] + 2) >> 2;
- dst += 1;
- s += 2;
- t += 2;
- }
- dst[0] = (s[0] + t[0] + 1) >> 1;
-}
-
-void ScaleRowDown2Box_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* dst,
- int dst_width) {
- const uint16_t* s = src_ptr;
- const uint16_t* t = src_ptr + src_stride;
- int x;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = (s[0] + s[1] + t[0] + t[1] + 2) >> 2;
- dst[1] = (s[2] + s[3] + t[2] + t[3] + 2) >> 2;
- dst += 2;
- s += 4;
- t += 4;
- }
- if (dst_width & 1) {
- dst[0] = (s[0] + s[1] + t[0] + t[1] + 2) >> 2;
- }
-}
-
-void ScaleRowDown4_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* dst,
- int dst_width) {
- int x;
- (void)src_stride;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = src_ptr[2];
- dst[1] = src_ptr[6];
- dst += 2;
- src_ptr += 8;
- }
- if (dst_width & 1) {
- dst[0] = src_ptr[2];
- }
-}
-
-void ScaleRowDown4_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* dst,
- int dst_width) {
- int x;
- (void)src_stride;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = src_ptr[2];
- dst[1] = src_ptr[6];
- dst += 2;
- src_ptr += 8;
- }
- if (dst_width & 1) {
- dst[0] = src_ptr[2];
- }
-}
-
-void ScaleRowDown4Box_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* dst,
- int dst_width) {
- intptr_t stride = src_stride;
- int x;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = (src_ptr[0] + src_ptr[1] + src_ptr[2] + src_ptr[3] +
- src_ptr[stride + 0] + src_ptr[stride + 1] + src_ptr[stride + 2] +
- src_ptr[stride + 3] + src_ptr[stride * 2 + 0] +
- src_ptr[stride * 2 + 1] + src_ptr[stride * 2 + 2] +
- src_ptr[stride * 2 + 3] + src_ptr[stride * 3 + 0] +
- src_ptr[stride * 3 + 1] + src_ptr[stride * 3 + 2] +
- src_ptr[stride * 3 + 3] + 8) >>
- 4;
- dst[1] = (src_ptr[4] + src_ptr[5] + src_ptr[6] + src_ptr[7] +
- src_ptr[stride + 4] + src_ptr[stride + 5] + src_ptr[stride + 6] +
- src_ptr[stride + 7] + src_ptr[stride * 2 + 4] +
- src_ptr[stride * 2 + 5] + src_ptr[stride * 2 + 6] +
- src_ptr[stride * 2 + 7] + src_ptr[stride * 3 + 4] +
- src_ptr[stride * 3 + 5] + src_ptr[stride * 3 + 6] +
- src_ptr[stride * 3 + 7] + 8) >>
- 4;
- dst += 2;
- src_ptr += 8;
- }
- if (dst_width & 1) {
- dst[0] = (src_ptr[0] + src_ptr[1] + src_ptr[2] + src_ptr[3] +
- src_ptr[stride + 0] + src_ptr[stride + 1] + src_ptr[stride + 2] +
- src_ptr[stride + 3] + src_ptr[stride * 2 + 0] +
- src_ptr[stride * 2 + 1] + src_ptr[stride * 2 + 2] +
- src_ptr[stride * 2 + 3] + src_ptr[stride * 3 + 0] +
- src_ptr[stride * 3 + 1] + src_ptr[stride * 3 + 2] +
- src_ptr[stride * 3 + 3] + 8) >>
- 4;
- }
-}
-
-void ScaleRowDown4Box_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* dst,
- int dst_width) {
- intptr_t stride = src_stride;
- int x;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = (src_ptr[0] + src_ptr[1] + src_ptr[2] + src_ptr[3] +
- src_ptr[stride + 0] + src_ptr[stride + 1] + src_ptr[stride + 2] +
- src_ptr[stride + 3] + src_ptr[stride * 2 + 0] +
- src_ptr[stride * 2 + 1] + src_ptr[stride * 2 + 2] +
- src_ptr[stride * 2 + 3] + src_ptr[stride * 3 + 0] +
- src_ptr[stride * 3 + 1] + src_ptr[stride * 3 + 2] +
- src_ptr[stride * 3 + 3] + 8) >>
- 4;
- dst[1] = (src_ptr[4] + src_ptr[5] + src_ptr[6] + src_ptr[7] +
- src_ptr[stride + 4] + src_ptr[stride + 5] + src_ptr[stride + 6] +
- src_ptr[stride + 7] + src_ptr[stride * 2 + 4] +
- src_ptr[stride * 2 + 5] + src_ptr[stride * 2 + 6] +
- src_ptr[stride * 2 + 7] + src_ptr[stride * 3 + 4] +
- src_ptr[stride * 3 + 5] + src_ptr[stride * 3 + 6] +
- src_ptr[stride * 3 + 7] + 8) >>
- 4;
- dst += 2;
- src_ptr += 8;
- }
- if (dst_width & 1) {
- dst[0] = (src_ptr[0] + src_ptr[1] + src_ptr[2] + src_ptr[3] +
- src_ptr[stride + 0] + src_ptr[stride + 1] + src_ptr[stride + 2] +
- src_ptr[stride + 3] + src_ptr[stride * 2 + 0] +
- src_ptr[stride * 2 + 1] + src_ptr[stride * 2 + 2] +
- src_ptr[stride * 2 + 3] + src_ptr[stride * 3 + 0] +
- src_ptr[stride * 3 + 1] + src_ptr[stride * 3 + 2] +
- src_ptr[stride * 3 + 3] + 8) >>
- 4;
- }
-}
-
-void ScaleRowDown34_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* dst,
- int dst_width) {
- int x;
- (void)src_stride;
- assert((dst_width % 3 == 0) && (dst_width > 0));
- for (x = 0; x < dst_width; x += 3) {
- dst[0] = src_ptr[0];
- dst[1] = src_ptr[1];
- dst[2] = src_ptr[3];
- dst += 3;
- src_ptr += 4;
- }
-}
-
-void ScaleRowDown34_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* dst,
- int dst_width) {
- int x;
- (void)src_stride;
- assert((dst_width % 3 == 0) && (dst_width > 0));
- for (x = 0; x < dst_width; x += 3) {
- dst[0] = src_ptr[0];
- dst[1] = src_ptr[1];
- dst[2] = src_ptr[3];
- dst += 3;
- src_ptr += 4;
- }
-}
-
-// Filter rows 0 and 1 together, 3 : 1
-void ScaleRowDown34_0_Box_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* d,
- int dst_width) {
- const uint8_t* s = src_ptr;
- const uint8_t* t = src_ptr + src_stride;
- int x;
- assert((dst_width % 3 == 0) && (dst_width > 0));
- for (x = 0; x < dst_width; x += 3) {
- uint8_t a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2;
- uint8_t a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1;
- uint8_t a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2;
- uint8_t b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2;
- uint8_t b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1;
- uint8_t b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2;
- d[0] = (a0 * 3 + b0 + 2) >> 2;
- d[1] = (a1 * 3 + b1 + 2) >> 2;
- d[2] = (a2 * 3 + b2 + 2) >> 2;
- d += 3;
- s += 4;
- t += 4;
- }
-}
-
-void ScaleRowDown34_0_Box_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* d,
- int dst_width) {
- const uint16_t* s = src_ptr;
- const uint16_t* t = src_ptr + src_stride;
- int x;
- assert((dst_width % 3 == 0) && (dst_width > 0));
- for (x = 0; x < dst_width; x += 3) {
- uint16_t a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2;
- uint16_t a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1;
- uint16_t a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2;
- uint16_t b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2;
- uint16_t b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1;
- uint16_t b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2;
- d[0] = (a0 * 3 + b0 + 2) >> 2;
- d[1] = (a1 * 3 + b1 + 2) >> 2;
- d[2] = (a2 * 3 + b2 + 2) >> 2;
- d += 3;
- s += 4;
- t += 4;
- }
-}
-
-// Filter rows 1 and 2 together, 1 : 1
-void ScaleRowDown34_1_Box_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* d,
- int dst_width) {
- const uint8_t* s = src_ptr;
- const uint8_t* t = src_ptr + src_stride;
- int x;
- assert((dst_width % 3 == 0) && (dst_width > 0));
- for (x = 0; x < dst_width; x += 3) {
- uint8_t a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2;
- uint8_t a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1;
- uint8_t a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2;
- uint8_t b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2;
- uint8_t b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1;
- uint8_t b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2;
- d[0] = (a0 + b0 + 1) >> 1;
- d[1] = (a1 + b1 + 1) >> 1;
- d[2] = (a2 + b2 + 1) >> 1;
- d += 3;
- s += 4;
- t += 4;
- }
-}
-
-void ScaleRowDown34_1_Box_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* d,
- int dst_width) {
- const uint16_t* s = src_ptr;
- const uint16_t* t = src_ptr + src_stride;
- int x;
- assert((dst_width % 3 == 0) && (dst_width > 0));
- for (x = 0; x < dst_width; x += 3) {
- uint16_t a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2;
- uint16_t a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1;
- uint16_t a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2;
- uint16_t b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2;
- uint16_t b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1;
- uint16_t b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2;
- d[0] = (a0 + b0 + 1) >> 1;
- d[1] = (a1 + b1 + 1) >> 1;
- d[2] = (a2 + b2 + 1) >> 1;
- d += 3;
- s += 4;
- t += 4;
- }
-}
-
-// Sample position: (O is src sample position, X is dst sample position)
-//
-// v dst_ptr at here v stop at here
-// X O X X O X X O X X O X X O X
-// ^ src_ptr at here
-void ScaleRowUp2_Linear_C(const uint8_t* src_ptr,
- uint8_t* dst_ptr,
- int dst_width) {
- int src_width = dst_width >> 1;
- int x;
- assert((dst_width % 2 == 0) && (dst_width >= 0));
- for (x = 0; x < src_width; ++x) {
- dst_ptr[2 * x + 0] = (src_ptr[x + 0] * 3 + src_ptr[x + 1] * 1 + 2) >> 2;
- dst_ptr[2 * x + 1] = (src_ptr[x + 0] * 1 + src_ptr[x + 1] * 3 + 2) >> 2;
- }
-}
-
-// Sample position: (O is src sample position, X is dst sample position)
-//
-// src_ptr at here
-// X v X X X X X X X X X
-// O O O O O
-// X X X X X X X X X X
-// ^ dst_ptr at here ^ stop at here
-// X X X X X X X X X X
-// O O O O O
-// X X X X X X X X X X
-void ScaleRowUp2_Bilinear_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* dst_ptr,
- ptrdiff_t dst_stride,
- int dst_width) {
- const uint8_t* s = src_ptr;
- const uint8_t* t = src_ptr + src_stride;
- uint8_t* d = dst_ptr;
- uint8_t* e = dst_ptr + dst_stride;
- int src_width = dst_width >> 1;
- int x;
- assert((dst_width % 2 == 0) && (dst_width >= 0));
- for (x = 0; x < src_width; ++x) {
- d[2 * x + 0] =
- (s[x + 0] * 9 + s[x + 1] * 3 + t[x + 0] * 3 + t[x + 1] * 1 + 8) >> 4;
- d[2 * x + 1] =
- (s[x + 0] * 3 + s[x + 1] * 9 + t[x + 0] * 1 + t[x + 1] * 3 + 8) >> 4;
- e[2 * x + 0] =
- (s[x + 0] * 3 + s[x + 1] * 1 + t[x + 0] * 9 + t[x + 1] * 3 + 8) >> 4;
- e[2 * x + 1] =
- (s[x + 0] * 1 + s[x + 1] * 3 + t[x + 0] * 3 + t[x + 1] * 9 + 8) >> 4;
- }
-}
-
-// Only suitable for at most 14 bit range.
-void ScaleRowUp2_Linear_16_C(const uint16_t* src_ptr,
- uint16_t* dst_ptr,
- int dst_width) {
- int src_width = dst_width >> 1;
- int x;
- assert((dst_width % 2 == 0) && (dst_width >= 0));
- for (x = 0; x < src_width; ++x) {
- dst_ptr[2 * x + 0] = (src_ptr[x + 0] * 3 + src_ptr[x + 1] * 1 + 2) >> 2;
- dst_ptr[2 * x + 1] = (src_ptr[x + 0] * 1 + src_ptr[x + 1] * 3 + 2) >> 2;
- }
-}
-
-// Only suitable for at most 12bit range.
-void ScaleRowUp2_Bilinear_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* dst_ptr,
- ptrdiff_t dst_stride,
- int dst_width) {
- const uint16_t* s = src_ptr;
- const uint16_t* t = src_ptr + src_stride;
- uint16_t* d = dst_ptr;
- uint16_t* e = dst_ptr + dst_stride;
- int src_width = dst_width >> 1;
- int x;
- assert((dst_width % 2 == 0) && (dst_width >= 0));
- for (x = 0; x < src_width; ++x) {
- d[2 * x + 0] =
- (s[x + 0] * 9 + s[x + 1] * 3 + t[x + 0] * 3 + t[x + 1] * 1 + 8) >> 4;
- d[2 * x + 1] =
- (s[x + 0] * 3 + s[x + 1] * 9 + t[x + 0] * 1 + t[x + 1] * 3 + 8) >> 4;
- e[2 * x + 0] =
- (s[x + 0] * 3 + s[x + 1] * 1 + t[x + 0] * 9 + t[x + 1] * 3 + 8) >> 4;
- e[2 * x + 1] =
- (s[x + 0] * 1 + s[x + 1] * 3 + t[x + 0] * 3 + t[x + 1] * 9 + 8) >> 4;
- }
-}
-
-// Scales a single row of pixels using point sampling.
-void ScaleCols_C(uint8_t* dst_ptr,
- const uint8_t* src_ptr,
- int dst_width,
- int x,
- int dx) {
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- dst_ptr[0] = src_ptr[x >> 16];
- x += dx;
- dst_ptr[1] = src_ptr[x >> 16];
- x += dx;
- dst_ptr += 2;
- }
- if (dst_width & 1) {
- dst_ptr[0] = src_ptr[x >> 16];
- }
-}
-
-void ScaleCols_16_C(uint16_t* dst_ptr,
- const uint16_t* src_ptr,
- int dst_width,
- int x,
- int dx) {
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- dst_ptr[0] = src_ptr[x >> 16];
- x += dx;
- dst_ptr[1] = src_ptr[x >> 16];
- x += dx;
- dst_ptr += 2;
- }
- if (dst_width & 1) {
- dst_ptr[0] = src_ptr[x >> 16];
- }
-}
-
-// Scales a single row of pixels up by 2x using point sampling.
-void ScaleColsUp2_C(uint8_t* dst_ptr,
- const uint8_t* src_ptr,
- int dst_width,
- int x,
- int dx) {
- int j;
- (void)x;
- (void)dx;
- for (j = 0; j < dst_width - 1; j += 2) {
- dst_ptr[1] = dst_ptr[0] = src_ptr[0];
- src_ptr += 1;
- dst_ptr += 2;
- }
- if (dst_width & 1) {
- dst_ptr[0] = src_ptr[0];
- }
-}
-
-void ScaleColsUp2_16_C(uint16_t* dst_ptr,
- const uint16_t* src_ptr,
- int dst_width,
- int x,
- int dx) {
- int j;
- (void)x;
- (void)dx;
- for (j = 0; j < dst_width - 1; j += 2) {
- dst_ptr[1] = dst_ptr[0] = src_ptr[0];
- src_ptr += 1;
- dst_ptr += 2;
- }
- if (dst_width & 1) {
- dst_ptr[0] = src_ptr[0];
- }
-}
-
-// (1-f)a + fb can be replaced with a + f(b-a)
-#if defined(__arm__) || defined(__aarch64__)
-#define BLENDER(a, b, f) \
- (uint8_t)((int)(a) + ((((int)((f)) * ((int)(b) - (int)(a))) + 0x8000) >> 16))
-#else
-// Intel uses 7 bit math with rounding.
-#define BLENDER(a, b, f) \
- (uint8_t)((int)(a) + (((int)((f) >> 9) * ((int)(b) - (int)(a)) + 0x40) >> 7))
-#endif
-
-void ScaleFilterCols_C(uint8_t* dst_ptr,
- const uint8_t* src_ptr,
- int dst_width,
- int x,
- int dx) {
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- int xi = x >> 16;
- int a = src_ptr[xi];
- int b = src_ptr[xi + 1];
- dst_ptr[0] = BLENDER(a, b, x & 0xffff);
- x += dx;
- xi = x >> 16;
- a = src_ptr[xi];
- b = src_ptr[xi + 1];
- dst_ptr[1] = BLENDER(a, b, x & 0xffff);
- x += dx;
- dst_ptr += 2;
- }
- if (dst_width & 1) {
- int xi = x >> 16;
- int a = src_ptr[xi];
- int b = src_ptr[xi + 1];
- dst_ptr[0] = BLENDER(a, b, x & 0xffff);
- }
-}
-
-void ScaleFilterCols64_C(uint8_t* dst_ptr,
- const uint8_t* src_ptr,
- int dst_width,
- int x32,
- int dx) {
- int64_t x = (int64_t)(x32);
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- int64_t xi = x >> 16;
- int a = src_ptr[xi];
- int b = src_ptr[xi + 1];
- dst_ptr[0] = BLENDER(a, b, x & 0xffff);
- x += dx;
- xi = x >> 16;
- a = src_ptr[xi];
- b = src_ptr[xi + 1];
- dst_ptr[1] = BLENDER(a, b, x & 0xffff);
- x += dx;
- dst_ptr += 2;
- }
- if (dst_width & 1) {
- int64_t xi = x >> 16;
- int a = src_ptr[xi];
- int b = src_ptr[xi + 1];
- dst_ptr[0] = BLENDER(a, b, x & 0xffff);
- }
-}
-#undef BLENDER
-
-// Same as 8 bit arm blender but return is cast to uint16_t
-#define BLENDER(a, b, f) \
- (uint16_t)( \
- (int)(a) + \
- (int)((((int64_t)((f)) * ((int64_t)(b) - (int)(a))) + 0x8000) >> 16))
-
-void ScaleFilterCols_16_C(uint16_t* dst_ptr,
- const uint16_t* src_ptr,
- int dst_width,
- int x,
- int dx) {
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- int xi = x >> 16;
- int a = src_ptr[xi];
- int b = src_ptr[xi + 1];
- dst_ptr[0] = BLENDER(a, b, x & 0xffff);
- x += dx;
- xi = x >> 16;
- a = src_ptr[xi];
- b = src_ptr[xi + 1];
- dst_ptr[1] = BLENDER(a, b, x & 0xffff);
- x += dx;
- dst_ptr += 2;
- }
- if (dst_width & 1) {
- int xi = x >> 16;
- int a = src_ptr[xi];
- int b = src_ptr[xi + 1];
- dst_ptr[0] = BLENDER(a, b, x & 0xffff);
- }
-}
-
-void ScaleFilterCols64_16_C(uint16_t* dst_ptr,
- const uint16_t* src_ptr,
- int dst_width,
- int x32,
- int dx) {
- int64_t x = (int64_t)(x32);
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- int64_t xi = x >> 16;
- int a = src_ptr[xi];
- int b = src_ptr[xi + 1];
- dst_ptr[0] = BLENDER(a, b, x & 0xffff);
- x += dx;
- xi = x >> 16;
- a = src_ptr[xi];
- b = src_ptr[xi + 1];
- dst_ptr[1] = BLENDER(a, b, x & 0xffff);
- x += dx;
- dst_ptr += 2;
- }
- if (dst_width & 1) {
- int64_t xi = x >> 16;
- int a = src_ptr[xi];
- int b = src_ptr[xi + 1];
- dst_ptr[0] = BLENDER(a, b, x & 0xffff);
- }
-}
-#undef BLENDER
-
-void ScaleRowDown38_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* dst,
- int dst_width) {
- int x;
- (void)src_stride;
- assert(dst_width % 3 == 0);
- for (x = 0; x < dst_width; x += 3) {
- dst[0] = src_ptr[0];
- dst[1] = src_ptr[3];
- dst[2] = src_ptr[6];
- dst += 3;
- src_ptr += 8;
- }
-}
-
-void ScaleRowDown38_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* dst,
- int dst_width) {
- int x;
- (void)src_stride;
- assert(dst_width % 3 == 0);
- for (x = 0; x < dst_width; x += 3) {
- dst[0] = src_ptr[0];
- dst[1] = src_ptr[3];
- dst[2] = src_ptr[6];
- dst += 3;
- src_ptr += 8;
- }
-}
-
-// 8x3 -> 3x1
-void ScaleRowDown38_3_Box_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* dst_ptr,
- int dst_width) {
- intptr_t stride = src_stride;
- int i;
- assert((dst_width % 3 == 0) && (dst_width > 0));
- for (i = 0; i < dst_width; i += 3) {
- dst_ptr[0] =
- (src_ptr[0] + src_ptr[1] + src_ptr[2] + src_ptr[stride + 0] +
- src_ptr[stride + 1] + src_ptr[stride + 2] + src_ptr[stride * 2 + 0] +
- src_ptr[stride * 2 + 1] + src_ptr[stride * 2 + 2]) *
- (65536 / 9) >>
- 16;
- dst_ptr[1] =
- (src_ptr[3] + src_ptr[4] + src_ptr[5] + src_ptr[stride + 3] +
- src_ptr[stride + 4] + src_ptr[stride + 5] + src_ptr[stride * 2 + 3] +
- src_ptr[stride * 2 + 4] + src_ptr[stride * 2 + 5]) *
- (65536 / 9) >>
- 16;
- dst_ptr[2] =
- (src_ptr[6] + src_ptr[7] + src_ptr[stride + 6] + src_ptr[stride + 7] +
- src_ptr[stride * 2 + 6] + src_ptr[stride * 2 + 7]) *
- (65536 / 6) >>
- 16;
- src_ptr += 8;
- dst_ptr += 3;
- }
-}
-
-void ScaleRowDown38_3_Box_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* dst_ptr,
- int dst_width) {
- intptr_t stride = src_stride;
- int i;
- assert((dst_width % 3 == 0) && (dst_width > 0));
- for (i = 0; i < dst_width; i += 3) {
- dst_ptr[0] =
- (src_ptr[0] + src_ptr[1] + src_ptr[2] + src_ptr[stride + 0] +
- src_ptr[stride + 1] + src_ptr[stride + 2] + src_ptr[stride * 2 + 0] +
- src_ptr[stride * 2 + 1] + src_ptr[stride * 2 + 2]) *
- (65536u / 9u) >>
- 16;
- dst_ptr[1] =
- (src_ptr[3] + src_ptr[4] + src_ptr[5] + src_ptr[stride + 3] +
- src_ptr[stride + 4] + src_ptr[stride + 5] + src_ptr[stride * 2 + 3] +
- src_ptr[stride * 2 + 4] + src_ptr[stride * 2 + 5]) *
- (65536u / 9u) >>
- 16;
- dst_ptr[2] =
- (src_ptr[6] + src_ptr[7] + src_ptr[stride + 6] + src_ptr[stride + 7] +
- src_ptr[stride * 2 + 6] + src_ptr[stride * 2 + 7]) *
- (65536u / 6u) >>
- 16;
- src_ptr += 8;
- dst_ptr += 3;
- }
-}
-
-// 8x2 -> 3x1
-void ScaleRowDown38_2_Box_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* dst_ptr,
- int dst_width) {
- intptr_t stride = src_stride;
- int i;
- assert((dst_width % 3 == 0) && (dst_width > 0));
- for (i = 0; i < dst_width; i += 3) {
- dst_ptr[0] = (src_ptr[0] + src_ptr[1] + src_ptr[2] + src_ptr[stride + 0] +
- src_ptr[stride + 1] + src_ptr[stride + 2]) *
- (65536 / 6) >>
- 16;
- dst_ptr[1] = (src_ptr[3] + src_ptr[4] + src_ptr[5] + src_ptr[stride + 3] +
- src_ptr[stride + 4] + src_ptr[stride + 5]) *
- (65536 / 6) >>
- 16;
- dst_ptr[2] =
- (src_ptr[6] + src_ptr[7] + src_ptr[stride + 6] + src_ptr[stride + 7]) *
- (65536 / 4) >>
- 16;
- src_ptr += 8;
- dst_ptr += 3;
- }
-}
-
-void ScaleRowDown38_2_Box_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* dst_ptr,
- int dst_width) {
- intptr_t stride = src_stride;
- int i;
- assert((dst_width % 3 == 0) && (dst_width > 0));
- for (i = 0; i < dst_width; i += 3) {
- dst_ptr[0] = (src_ptr[0] + src_ptr[1] + src_ptr[2] + src_ptr[stride + 0] +
- src_ptr[stride + 1] + src_ptr[stride + 2]) *
- (65536u / 6u) >>
- 16;
- dst_ptr[1] = (src_ptr[3] + src_ptr[4] + src_ptr[5] + src_ptr[stride + 3] +
- src_ptr[stride + 4] + src_ptr[stride + 5]) *
- (65536u / 6u) >>
- 16;
- dst_ptr[2] =
- (src_ptr[6] + src_ptr[7] + src_ptr[stride + 6] + src_ptr[stride + 7]) *
- (65536u / 4u) >>
- 16;
- src_ptr += 8;
- dst_ptr += 3;
- }
-}
-
-void ScaleAddRow_C(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width) {
- int x;
- assert(src_width > 0);
- for (x = 0; x < src_width - 1; x += 2) {
- dst_ptr[0] += src_ptr[0];
- dst_ptr[1] += src_ptr[1];
- src_ptr += 2;
- dst_ptr += 2;
- }
- if (src_width & 1) {
- dst_ptr[0] += src_ptr[0];
- }
-}
-
-void ScaleAddRow_16_C(const uint16_t* src_ptr,
- uint32_t* dst_ptr,
- int src_width) {
- int x;
- assert(src_width > 0);
- for (x = 0; x < src_width - 1; x += 2) {
- dst_ptr[0] += src_ptr[0];
- dst_ptr[1] += src_ptr[1];
- src_ptr += 2;
- dst_ptr += 2;
- }
- if (src_width & 1) {
- dst_ptr[0] += src_ptr[0];
- }
-}
-
-// ARGB scale row functions
-
-void ScaleARGBRowDown2_C(const uint8_t* src_argb,
- ptrdiff_t src_stride,
- uint8_t* dst_argb,
- int dst_width) {
- const uint32_t* src = (const uint32_t*)(src_argb);
- uint32_t* dst = (uint32_t*)(dst_argb);
- int x;
- (void)src_stride;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = src[1];
- dst[1] = src[3];
- src += 4;
- dst += 2;
- }
- if (dst_width & 1) {
- dst[0] = src[1];
- }
-}
-
-void ScaleARGBRowDown2Linear_C(const uint8_t* src_argb,
- ptrdiff_t src_stride,
- uint8_t* dst_argb,
- int dst_width) {
- int x;
- (void)src_stride;
- for (x = 0; x < dst_width; ++x) {
- dst_argb[0] = (src_argb[0] + src_argb[4] + 1) >> 1;
- dst_argb[1] = (src_argb[1] + src_argb[5] + 1) >> 1;
- dst_argb[2] = (src_argb[2] + src_argb[6] + 1) >> 1;
- dst_argb[3] = (src_argb[3] + src_argb[7] + 1) >> 1;
- src_argb += 8;
- dst_argb += 4;
- }
-}
-
-void ScaleARGBRowDown2Box_C(const uint8_t* src_argb,
- ptrdiff_t src_stride,
- uint8_t* dst_argb,
- int dst_width) {
- int x;
- for (x = 0; x < dst_width; ++x) {
- dst_argb[0] = (src_argb[0] + src_argb[4] + src_argb[src_stride] +
- src_argb[src_stride + 4] + 2) >>
- 2;
- dst_argb[1] = (src_argb[1] + src_argb[5] + src_argb[src_stride + 1] +
- src_argb[src_stride + 5] + 2) >>
- 2;
- dst_argb[2] = (src_argb[2] + src_argb[6] + src_argb[src_stride + 2] +
- src_argb[src_stride + 6] + 2) >>
- 2;
- dst_argb[3] = (src_argb[3] + src_argb[7] + src_argb[src_stride + 3] +
- src_argb[src_stride + 7] + 2) >>
- 2;
- src_argb += 8;
- dst_argb += 4;
- }
-}
-
-void ScaleARGBRowDownEven_C(const uint8_t* src_argb,
- ptrdiff_t src_stride,
- int src_stepx,
- uint8_t* dst_argb,
- int dst_width) {
- const uint32_t* src = (const uint32_t*)(src_argb);
- uint32_t* dst = (uint32_t*)(dst_argb);
- (void)src_stride;
- int x;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = src[0];
- dst[1] = src[src_stepx];
- src += src_stepx * 2;
- dst += 2;
- }
- if (dst_width & 1) {
- dst[0] = src[0];
- }
-}
-
-void ScaleARGBRowDownEvenBox_C(const uint8_t* src_argb,
- ptrdiff_t src_stride,
- int src_stepx,
- uint8_t* dst_argb,
- int dst_width) {
- int x;
- for (x = 0; x < dst_width; ++x) {
- dst_argb[0] = (src_argb[0] + src_argb[4] + src_argb[src_stride] +
- src_argb[src_stride + 4] + 2) >>
- 2;
- dst_argb[1] = (src_argb[1] + src_argb[5] + src_argb[src_stride + 1] +
- src_argb[src_stride + 5] + 2) >>
- 2;
- dst_argb[2] = (src_argb[2] + src_argb[6] + src_argb[src_stride + 2] +
- src_argb[src_stride + 6] + 2) >>
- 2;
- dst_argb[3] = (src_argb[3] + src_argb[7] + src_argb[src_stride + 3] +
- src_argb[src_stride + 7] + 2) >>
- 2;
- src_argb += src_stepx * 4;
- dst_argb += 4;
- }
-}
-
-// Scales a single row of pixels using point sampling.
-void ScaleARGBCols_C(uint8_t* dst_argb,
- const uint8_t* src_argb,
- int dst_width,
- int x,
- int dx) {
- const uint32_t* src = (const uint32_t*)(src_argb);
- uint32_t* dst = (uint32_t*)(dst_argb);
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- dst[0] = src[x >> 16];
- x += dx;
- dst[1] = src[x >> 16];
- x += dx;
- dst += 2;
- }
- if (dst_width & 1) {
- dst[0] = src[x >> 16];
- }
-}
-
-void ScaleARGBCols64_C(uint8_t* dst_argb,
- const uint8_t* src_argb,
- int dst_width,
- int x32,
- int dx) {
- int64_t x = (int64_t)(x32);
- const uint32_t* src = (const uint32_t*)(src_argb);
- uint32_t* dst = (uint32_t*)(dst_argb);
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- dst[0] = src[x >> 16];
- x += dx;
- dst[1] = src[x >> 16];
- x += dx;
- dst += 2;
- }
- if (dst_width & 1) {
- dst[0] = src[x >> 16];
- }
-}
-
-// Scales a single row of pixels up by 2x using point sampling.
-void ScaleARGBColsUp2_C(uint8_t* dst_argb,
- const uint8_t* src_argb,
- int dst_width,
- int x,
- int dx) {
- const uint32_t* src = (const uint32_t*)(src_argb);
- uint32_t* dst = (uint32_t*)(dst_argb);
- int j;
- (void)x;
- (void)dx;
- for (j = 0; j < dst_width - 1; j += 2) {
- dst[1] = dst[0] = src[0];
- src += 1;
- dst += 2;
- }
- if (dst_width & 1) {
- dst[0] = src[0];
- }
-}
-
-// TODO(fbarchard): Replace 0x7f ^ f with 128-f. bug=607.
-// Mimics SSSE3 blender
-#define BLENDER1(a, b, f) ((a) * (0x7f ^ f) + (b)*f) >> 7
-#define BLENDERC(a, b, f, s) \
- (uint32_t)(BLENDER1(((a) >> s) & 255, ((b) >> s) & 255, f) << s)
-#define BLENDER(a, b, f) \
- BLENDERC(a, b, f, 24) | BLENDERC(a, b, f, 16) | BLENDERC(a, b, f, 8) | \
- BLENDERC(a, b, f, 0)
-
-void ScaleARGBFilterCols_C(uint8_t* dst_argb,
- const uint8_t* src_argb,
- int dst_width,
- int x,
- int dx) {
- const uint32_t* src = (const uint32_t*)(src_argb);
- uint32_t* dst = (uint32_t*)(dst_argb);
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- int xi = x >> 16;
- int xf = (x >> 9) & 0x7f;
- uint32_t a = src[xi];
- uint32_t b = src[xi + 1];
- dst[0] = BLENDER(a, b, xf);
- x += dx;
- xi = x >> 16;
- xf = (x >> 9) & 0x7f;
- a = src[xi];
- b = src[xi + 1];
- dst[1] = BLENDER(a, b, xf);
- x += dx;
- dst += 2;
- }
- if (dst_width & 1) {
- int xi = x >> 16;
- int xf = (x >> 9) & 0x7f;
- uint32_t a = src[xi];
- uint32_t b = src[xi + 1];
- dst[0] = BLENDER(a, b, xf);
- }
-}
-
-void ScaleARGBFilterCols64_C(uint8_t* dst_argb,
- const uint8_t* src_argb,
- int dst_width,
- int x32,
- int dx) {
- int64_t x = (int64_t)(x32);
- const uint32_t* src = (const uint32_t*)(src_argb);
- uint32_t* dst = (uint32_t*)(dst_argb);
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- int64_t xi = x >> 16;
- int xf = (x >> 9) & 0x7f;
- uint32_t a = src[xi];
- uint32_t b = src[xi + 1];
- dst[0] = BLENDER(a, b, xf);
- x += dx;
- xi = x >> 16;
- xf = (x >> 9) & 0x7f;
- a = src[xi];
- b = src[xi + 1];
- dst[1] = BLENDER(a, b, xf);
- x += dx;
- dst += 2;
- }
- if (dst_width & 1) {
- int64_t xi = x >> 16;
- int xf = (x >> 9) & 0x7f;
- uint32_t a = src[xi];
- uint32_t b = src[xi + 1];
- dst[0] = BLENDER(a, b, xf);
- }
-}
-#undef BLENDER1
-#undef BLENDERC
-#undef BLENDER
-
-// UV scale row functions
-// same as ARGB but 2 channels
-
-void ScaleUVRowDown2_C(const uint8_t* src_uv,
- ptrdiff_t src_stride,
- uint8_t* dst_uv,
- int dst_width) {
- const uint16_t* src = (const uint16_t*)(src_uv);
- uint16_t* dst = (uint16_t*)(dst_uv);
- int x;
- (void)src_stride;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = src[1];
- dst[1] = src[3];
- src += 2;
- dst += 2;
- }
- if (dst_width & 1) {
- dst[0] = src[1];
- }
-}
-
-void ScaleUVRowDown2Linear_C(const uint8_t* src_uv,
- ptrdiff_t src_stride,
- uint8_t* dst_uv,
- int dst_width) {
- int x;
- (void)src_stride;
- for (x = 0; x < dst_width; ++x) {
- dst_uv[0] = (src_uv[0] + src_uv[2] + 1) >> 1;
- dst_uv[1] = (src_uv[1] + src_uv[3] + 1) >> 1;
- src_uv += 4;
- dst_uv += 2;
- }
-}
-
-void ScaleUVRowDown2Box_C(const uint8_t* src_uv,
- ptrdiff_t src_stride,
- uint8_t* dst_uv,
- int dst_width) {
- int x;
- for (x = 0; x < dst_width; ++x) {
- dst_uv[0] = (src_uv[0] + src_uv[2] + src_uv[src_stride] +
- src_uv[src_stride + 2] + 2) >>
- 2;
- dst_uv[1] = (src_uv[1] + src_uv[3] + src_uv[src_stride + 1] +
- src_uv[src_stride + 3] + 2) >>
- 2;
- src_uv += 4;
- dst_uv += 2;
- }
-}
-
-void ScaleUVRowDownEven_C(const uint8_t* src_uv,
- ptrdiff_t src_stride,
- int src_stepx,
- uint8_t* dst_uv,
- int dst_width) {
- const uint16_t* src = (const uint16_t*)(src_uv);
- uint16_t* dst = (uint16_t*)(dst_uv);
- (void)src_stride;
- int x;
- for (x = 0; x < dst_width - 1; x += 2) {
- dst[0] = src[0];
- dst[1] = src[src_stepx];
- src += src_stepx * 2;
- dst += 2;
- }
- if (dst_width & 1) {
- dst[0] = src[0];
- }
-}
-
-void ScaleUVRowDownEvenBox_C(const uint8_t* src_uv,
- ptrdiff_t src_stride,
- int src_stepx,
- uint8_t* dst_uv,
- int dst_width) {
- int x;
- for (x = 0; x < dst_width; ++x) {
- dst_uv[0] = (src_uv[0] + src_uv[2] + src_uv[src_stride] +
- src_uv[src_stride + 2] + 2) >>
- 2;
- dst_uv[1] = (src_uv[1] + src_uv[3] + src_uv[src_stride + 1] +
- src_uv[src_stride + 3] + 2) >>
- 2;
- src_uv += src_stepx * 2;
- dst_uv += 2;
- }
-}
-
-void ScaleUVRowUp2_Linear_C(const uint8_t* src_ptr,
- uint8_t* dst_ptr,
- int dst_width) {
- int src_width = dst_width >> 1;
- int x;
- assert((dst_width % 2 == 0) && (dst_width >= 0));
- for (x = 0; x < src_width; ++x) {
- dst_ptr[4 * x + 0] =
- (src_ptr[2 * x + 0] * 3 + src_ptr[2 * x + 2] * 1 + 2) >> 2;
- dst_ptr[4 * x + 1] =
- (src_ptr[2 * x + 1] * 3 + src_ptr[2 * x + 3] * 1 + 2) >> 2;
- dst_ptr[4 * x + 2] =
- (src_ptr[2 * x + 0] * 1 + src_ptr[2 * x + 2] * 3 + 2) >> 2;
- dst_ptr[4 * x + 3] =
- (src_ptr[2 * x + 1] * 1 + src_ptr[2 * x + 3] * 3 + 2) >> 2;
- }
-}
-
-void ScaleUVRowUp2_Bilinear_C(const uint8_t* src_ptr,
- ptrdiff_t src_stride,
- uint8_t* dst_ptr,
- ptrdiff_t dst_stride,
- int dst_width) {
- const uint8_t* s = src_ptr;
- const uint8_t* t = src_ptr + src_stride;
- uint8_t* d = dst_ptr;
- uint8_t* e = dst_ptr + dst_stride;
- int src_width = dst_width >> 1;
- int x;
- assert((dst_width % 2 == 0) && (dst_width >= 0));
- for (x = 0; x < src_width; ++x) {
- d[4 * x + 0] = (s[2 * x + 0] * 9 + s[2 * x + 2] * 3 + t[2 * x + 0] * 3 +
- t[2 * x + 2] * 1 + 8) >>
- 4;
- d[4 * x + 1] = (s[2 * x + 1] * 9 + s[2 * x + 3] * 3 + t[2 * x + 1] * 3 +
- t[2 * x + 3] * 1 + 8) >>
- 4;
- d[4 * x + 2] = (s[2 * x + 0] * 3 + s[2 * x + 2] * 9 + t[2 * x + 0] * 1 +
- t[2 * x + 2] * 3 + 8) >>
- 4;
- d[4 * x + 3] = (s[2 * x + 1] * 3 + s[2 * x + 3] * 9 + t[2 * x + 1] * 1 +
- t[2 * x + 3] * 3 + 8) >>
- 4;
- e[4 * x + 0] = (s[2 * x + 0] * 3 + s[2 * x + 2] * 1 + t[2 * x + 0] * 9 +
- t[2 * x + 2] * 3 + 8) >>
- 4;
- e[4 * x + 1] = (s[2 * x + 1] * 3 + s[2 * x + 3] * 1 + t[2 * x + 1] * 9 +
- t[2 * x + 3] * 3 + 8) >>
- 4;
- e[4 * x + 2] = (s[2 * x + 0] * 1 + s[2 * x + 2] * 3 + t[2 * x + 0] * 3 +
- t[2 * x + 2] * 9 + 8) >>
- 4;
- e[4 * x + 3] = (s[2 * x + 1] * 1 + s[2 * x + 3] * 3 + t[2 * x + 1] * 3 +
- t[2 * x + 3] * 9 + 8) >>
- 4;
- }
-}
-
-void ScaleUVRowUp2_Linear_16_C(const uint16_t* src_ptr,
- uint16_t* dst_ptr,
- int dst_width) {
- int src_width = dst_width >> 1;
- int x;
- assert((dst_width % 2 == 0) && (dst_width >= 0));
- for (x = 0; x < src_width; ++x) {
- dst_ptr[4 * x + 0] =
- (src_ptr[2 * x + 0] * 3 + src_ptr[2 * x + 2] * 1 + 2) >> 2;
- dst_ptr[4 * x + 1] =
- (src_ptr[2 * x + 1] * 3 + src_ptr[2 * x + 3] * 1 + 2) >> 2;
- dst_ptr[4 * x + 2] =
- (src_ptr[2 * x + 0] * 1 + src_ptr[2 * x + 2] * 3 + 2) >> 2;
- dst_ptr[4 * x + 3] =
- (src_ptr[2 * x + 1] * 1 + src_ptr[2 * x + 3] * 3 + 2) >> 2;
- }
-}
-
-void ScaleUVRowUp2_Bilinear_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* dst_ptr,
- ptrdiff_t dst_stride,
- int dst_width) {
- const uint16_t* s = src_ptr;
- const uint16_t* t = src_ptr + src_stride;
- uint16_t* d = dst_ptr;
- uint16_t* e = dst_ptr + dst_stride;
- int src_width = dst_width >> 1;
- int x;
- assert((dst_width % 2 == 0) && (dst_width >= 0));
- for (x = 0; x < src_width; ++x) {
- d[4 * x + 0] = (s[2 * x + 0] * 9 + s[2 * x + 2] * 3 + t[2 * x + 0] * 3 +
- t[2 * x + 2] * 1 + 8) >>
- 4;
- d[4 * x + 1] = (s[2 * x + 1] * 9 + s[2 * x + 3] * 3 + t[2 * x + 1] * 3 +
- t[2 * x + 3] * 1 + 8) >>
- 4;
- d[4 * x + 2] = (s[2 * x + 0] * 3 + s[2 * x + 2] * 9 + t[2 * x + 0] * 1 +
- t[2 * x + 2] * 3 + 8) >>
- 4;
- d[4 * x + 3] = (s[2 * x + 1] * 3 + s[2 * x + 3] * 9 + t[2 * x + 1] * 1 +
- t[2 * x + 3] * 3 + 8) >>
- 4;
- e[4 * x + 0] = (s[2 * x + 0] * 3 + s[2 * x + 2] * 1 + t[2 * x + 0] * 9 +
- t[2 * x + 2] * 3 + 8) >>
- 4;
- e[4 * x + 1] = (s[2 * x + 1] * 3 + s[2 * x + 3] * 1 + t[2 * x + 1] * 9 +
- t[2 * x + 3] * 3 + 8) >>
- 4;
- e[4 * x + 2] = (s[2 * x + 0] * 1 + s[2 * x + 2] * 3 + t[2 * x + 0] * 3 +
- t[2 * x + 2] * 9 + 8) >>
- 4;
- e[4 * x + 3] = (s[2 * x + 1] * 1 + s[2 * x + 3] * 3 + t[2 * x + 1] * 3 +
- t[2 * x + 3] * 9 + 8) >>
- 4;
- }
-}
-
-// Scales a single row of pixels using point sampling.
-void ScaleUVCols_C(uint8_t* dst_uv,
- const uint8_t* src_uv,
- int dst_width,
- int x,
- int dx) {
- const uint16_t* src = (const uint16_t*)(src_uv);
- uint16_t* dst = (uint16_t*)(dst_uv);
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- dst[0] = src[x >> 16];
- x += dx;
- dst[1] = src[x >> 16];
- x += dx;
- dst += 2;
- }
- if (dst_width & 1) {
- dst[0] = src[x >> 16];
- }
-}
-
-void ScaleUVCols64_C(uint8_t* dst_uv,
- const uint8_t* src_uv,
- int dst_width,
- int x32,
- int dx) {
- int64_t x = (int64_t)(x32);
- const uint16_t* src = (const uint16_t*)(src_uv);
- uint16_t* dst = (uint16_t*)(dst_uv);
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- dst[0] = src[x >> 16];
- x += dx;
- dst[1] = src[x >> 16];
- x += dx;
- dst += 2;
- }
- if (dst_width & 1) {
- dst[0] = src[x >> 16];
- }
-}
-
-// Scales a single row of pixels up by 2x using point sampling.
-void ScaleUVColsUp2_C(uint8_t* dst_uv,
- const uint8_t* src_uv,
- int dst_width,
- int x,
- int dx) {
- const uint16_t* src = (const uint16_t*)(src_uv);
- uint16_t* dst = (uint16_t*)(dst_uv);
- int j;
- (void)x;
- (void)dx;
- for (j = 0; j < dst_width - 1; j += 2) {
- dst[1] = dst[0] = src[0];
- src += 1;
- dst += 2;
- }
- if (dst_width & 1) {
- dst[0] = src[0];
- }
-}
-
-// TODO(fbarchard): Replace 0x7f ^ f with 128-f. bug=607.
-// Mimics SSSE3 blender
-#define BLENDER1(a, b, f) ((a) * (0x7f ^ f) + (b)*f) >> 7
-#define BLENDERC(a, b, f, s) \
- (uint16_t)(BLENDER1(((a) >> s) & 255, ((b) >> s) & 255, f) << s)
-#define BLENDER(a, b, f) BLENDERC(a, b, f, 8) | BLENDERC(a, b, f, 0)
-
-void ScaleUVFilterCols_C(uint8_t* dst_uv,
- const uint8_t* src_uv,
- int dst_width,
- int x,
- int dx) {
- const uint16_t* src = (const uint16_t*)(src_uv);
- uint16_t* dst = (uint16_t*)(dst_uv);
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- int xi = x >> 16;
- int xf = (x >> 9) & 0x7f;
- uint16_t a = src[xi];
- uint16_t b = src[xi + 1];
- dst[0] = BLENDER(a, b, xf);
- x += dx;
- xi = x >> 16;
- xf = (x >> 9) & 0x7f;
- a = src[xi];
- b = src[xi + 1];
- dst[1] = BLENDER(a, b, xf);
- x += dx;
- dst += 2;
- }
- if (dst_width & 1) {
- int xi = x >> 16;
- int xf = (x >> 9) & 0x7f;
- uint16_t a = src[xi];
- uint16_t b = src[xi + 1];
- dst[0] = BLENDER(a, b, xf);
- }
-}
-
-void ScaleUVFilterCols64_C(uint8_t* dst_uv,
- const uint8_t* src_uv,
- int dst_width,
- int x32,
- int dx) {
- int64_t x = (int64_t)(x32);
- const uint16_t* src = (const uint16_t*)(src_uv);
- uint16_t* dst = (uint16_t*)(dst_uv);
- int j;
- for (j = 0; j < dst_width - 1; j += 2) {
- int64_t xi = x >> 16;
- int xf = (x >> 9) & 0x7f;
- uint16_t a = src[xi];
- uint16_t b = src[xi + 1];
- dst[0] = BLENDER(a, b, xf);
- x += dx;
- xi = x >> 16;
- xf = (x >> 9) & 0x7f;
- a = src[xi];
- b = src[xi + 1];
- dst[1] = BLENDER(a, b, xf);
- x += dx;
- dst += 2;
- }
- if (dst_width & 1) {
- int64_t xi = x >> 16;
- int xf = (x >> 9) & 0x7f;
- uint16_t a = src[xi];
- uint16_t b = src[xi + 1];
- dst[0] = BLENDER(a, b, xf);
- }
-}
-#undef BLENDER1
-#undef BLENDERC
-#undef BLENDER
-
-// Scale plane vertically with bilinear interpolation.
-void ScalePlaneVertical(int src_height,
- int dst_width,
- int dst_height,
- int src_stride,
- int dst_stride,
- const uint8_t* src_argb,
- uint8_t* dst_argb,
- int x,
- int y,
- int dy,
- int bpp, // bytes per pixel. 4 for ARGB.
- enum FilterMode filtering) {
- // TODO(fbarchard): Allow higher bpp.
- int dst_width_bytes = dst_width * bpp;
- void (*InterpolateRow)(uint8_t * dst_argb, const uint8_t* src_argb,
- ptrdiff_t src_stride, int dst_width,
- int source_y_fraction) = InterpolateRow_C;
- const int max_y = (src_height > 1) ? ((src_height - 1) << 16) - 1 : 0;
- int j;
- assert(bpp >= 1 && bpp <= 4);
- assert(src_height != 0);
- assert(dst_width > 0);
- assert(dst_height > 0);
- src_argb += (x >> 16) * bpp;
-#if defined(HAS_INTERPOLATEROW_SSSE3)
- if (TestCpuFlag(kCpuHasSSSE3)) {
- InterpolateRow = InterpolateRow_Any_SSSE3;
- if (IS_ALIGNED(dst_width_bytes, 16)) {
- InterpolateRow = InterpolateRow_SSSE3;
- }
- }
-#endif
-#if defined(HAS_INTERPOLATEROW_AVX2)
- if (TestCpuFlag(kCpuHasAVX2)) {
- InterpolateRow = InterpolateRow_Any_AVX2;
- if (IS_ALIGNED(dst_width_bytes, 32)) {
- InterpolateRow = InterpolateRow_AVX2;
- }
- }
-#endif
-#if defined(HAS_INTERPOLATEROW_NEON)
- if (TestCpuFlag(kCpuHasNEON)) {
- InterpolateRow = InterpolateRow_Any_NEON;
- if (IS_ALIGNED(dst_width_bytes, 16)) {
- InterpolateRow = InterpolateRow_NEON;
- }
- }
-#endif
-#if defined(HAS_INTERPOLATEROW_MSA)
- if (TestCpuFlag(kCpuHasMSA)) {
- InterpolateRow = InterpolateRow_Any_MSA;
- if (IS_ALIGNED(dst_width_bytes, 32)) {
- InterpolateRow = InterpolateRow_MSA;
- }
- }
-#endif
-#if defined(HAS_INTERPOLATEROW_LSX)
- if (TestCpuFlag(kCpuHasLSX)) {
- InterpolateRow = InterpolateRow_Any_LSX;
- if (IS_ALIGNED(dst_width_bytes, 32)) {
- InterpolateRow = InterpolateRow_LSX;
- }
- }
-#endif
- for (j = 0; j < dst_height; ++j) {
- int yi;
- int yf;
- if (y > max_y) {
- y = max_y;
- }
- yi = y >> 16;
- yf = filtering ? ((y >> 8) & 255) : 0;
- InterpolateRow(dst_argb, src_argb + yi * src_stride, src_stride,
- dst_width_bytes, yf);
- dst_argb += dst_stride;
- y += dy;
- }
-}
-
-void ScalePlaneVertical_16(int src_height,
- int dst_width,
- int dst_height,
- int src_stride,
- int dst_stride,
- const uint16_t* src_argb,
- uint16_t* dst_argb,
- int x,
- int y,
- int dy,
- int wpp, /* words per pixel. normally 1 */
- enum FilterMode filtering) {
- // TODO(fbarchard): Allow higher wpp.
- int dst_width_words = dst_width * wpp;
- void (*InterpolateRow)(uint16_t * dst_argb, const uint16_t* src_argb,
- ptrdiff_t src_stride, int dst_width,
- int source_y_fraction) = InterpolateRow_16_C;
- const int max_y = (src_height > 1) ? ((src_height - 1) << 16) - 1 : 0;
- int j;
- assert(wpp >= 1 && wpp <= 2);
- assert(src_height != 0);
- assert(dst_width > 0);
- assert(dst_height > 0);
- src_argb += (x >> 16) * wpp;
-#if defined(HAS_INTERPOLATEROW_16_SSE2)
- if (TestCpuFlag(kCpuHasSSE2)) {
- InterpolateRow = InterpolateRow_16_Any_SSE2;
- if (IS_ALIGNED(dst_width_words, 16)) {
- InterpolateRow = InterpolateRow_16_SSE2;
- }
- }
-#endif
-#if defined(HAS_INTERPOLATEROW_16_SSSE3)
- if (TestCpuFlag(kCpuHasSSSE3)) {
- InterpolateRow = InterpolateRow_16_Any_SSSE3;
- if (IS_ALIGNED(dst_width_words, 16)) {
- InterpolateRow = InterpolateRow_16_SSSE3;
- }
- }
-#endif
-#if defined(HAS_INTERPOLATEROW_16_AVX2)
- if (TestCpuFlag(kCpuHasAVX2)) {
- InterpolateRow = InterpolateRow_16_Any_AVX2;
- if (IS_ALIGNED(dst_width_words, 32)) {
- InterpolateRow = InterpolateRow_16_AVX2;
- }
- }
-#endif
-#if defined(HAS_INTERPOLATEROW_16_NEON)
- if (TestCpuFlag(kCpuHasNEON)) {
- InterpolateRow = InterpolateRow_16_Any_NEON;
- if (IS_ALIGNED(dst_width_words, 8)) {
- InterpolateRow = InterpolateRow_16_NEON;
- }
- }
-#endif
- for (j = 0; j < dst_height; ++j) {
- int yi;
- int yf;
- if (y > max_y) {
- y = max_y;
- }
- yi = y >> 16;
- yf = filtering ? ((y >> 8) & 255) : 0;
- InterpolateRow(dst_argb, src_argb + yi * src_stride, src_stride,
- dst_width_words, yf);
- dst_argb += dst_stride;
- y += dy;
- }
-}
-
-// Use scale to convert lsb formats to msb, depending how many bits there are:
-// 32768 = 9 bits
-// 16384 = 10 bits
-// 4096 = 12 bits
-// 256 = 16 bits
-// TODO(fbarchard): change scale to bits
-void ScalePlaneVertical_16To8(int src_height,
- int dst_width,
- int dst_height,
- int src_stride,
- int dst_stride,
- const uint16_t* src_argb,
- uint8_t* dst_argb,
- int x,
- int y,
- int dy,
- int wpp, /* words per pixel. normally 1 */
- int scale,
- enum FilterMode filtering) {
- // TODO(fbarchard): Allow higher wpp.
- int dst_width_words = dst_width * wpp;
- // TODO(https://crbug.com/libyuv/931): Add NEON 32 bit and AVX2 versions.
- void (*InterpolateRow_16To8)(uint8_t * dst_argb, const uint16_t* src_argb,
- ptrdiff_t src_stride, int scale, int dst_width,
- int source_y_fraction) = InterpolateRow_16To8_C;
- const int max_y = (src_height > 1) ? ((src_height - 1) << 16) - 1 : 0;
- int j;
- assert(wpp >= 1 && wpp <= 2);
- assert(src_height != 0);
- assert(dst_width > 0);
- assert(dst_height > 0);
- src_argb += (x >> 16) * wpp;
-
-#if defined(HAS_INTERPOLATEROW_16TO8_NEON)
- if (TestCpuFlag(kCpuHasNEON)) {
- InterpolateRow_16To8 = InterpolateRow_16To8_Any_NEON;
- if (IS_ALIGNED(dst_width, 8)) {
- InterpolateRow_16To8 = InterpolateRow_16To8_NEON;
- }
- }
-#endif
-#if defined(HAS_INTERPOLATEROW_16TO8_AVX2)
- if (TestCpuFlag(kCpuHasAVX2)) {
- InterpolateRow_16To8 = InterpolateRow_16To8_Any_AVX2;
- if (IS_ALIGNED(dst_width, 32)) {
- InterpolateRow_16To8 = InterpolateRow_16To8_AVX2;
- }
- }
-#endif
- for (j = 0; j < dst_height; ++j) {
- int yi;
- int yf;
- if (y > max_y) {
- y = max_y;
- }
- yi = y >> 16;
- yf = filtering ? ((y >> 8) & 255) : 0;
- InterpolateRow_16To8(dst_argb, src_argb + yi * src_stride, src_stride,
- scale, dst_width_words, yf);
- dst_argb += dst_stride;
- y += dy;
- }
-}
-
-// Simplify the filtering based on scale factors.
-enum FilterMode ScaleFilterReduce(int src_width,
- int src_height,
- int dst_width,
- int dst_height,
- enum FilterMode filtering) {
- if (src_width < 0) {
- src_width = -src_width;
- }
- if (src_height < 0) {
- src_height = -src_height;
- }
- if (filtering == kFilterBox) {
- // If scaling either axis to 0.5 or larger, switch from Box to Bilinear.
- if (dst_width * 2 >= src_width || dst_height * 2 >= src_height) {
- filtering = kFilterBilinear;
- }
- }
- if (filtering == kFilterBilinear) {
- if (src_height == 1) {
- filtering = kFilterLinear;
- }
- // TODO(fbarchard): Detect any odd scale factor and reduce to Linear.
- if (dst_height == src_height || dst_height * 3 == src_height) {
- filtering = kFilterLinear;
- }
- // TODO(fbarchard): Remove 1 pixel wide filter restriction, which is to
- // avoid reading 2 pixels horizontally that causes memory exception.
- if (src_width == 1) {
- filtering = kFilterNone;
- }
- }
- if (filtering == kFilterLinear) {
- if (src_width == 1) {
- filtering = kFilterNone;
- }
- // TODO(fbarchard): Detect any odd scale factor and reduce to None.
- if (dst_width == src_width || dst_width * 3 == src_width) {
- filtering = kFilterNone;
- }
- }
- return filtering;
-}
-
-// Divide num by div and return as 16.16 fixed point result.
-int FixedDiv_C(int num, int div) {
- return (int)(((int64_t)(num) << 16) / div);
-}
-
-// Divide num - 1 by div - 1 and return as 16.16 fixed point result.
-int FixedDiv1_C(int num, int div) {
- return (int)((((int64_t)(num) << 16) - 0x00010001) / (div - 1));
-}
-
-#define CENTERSTART(dx, s) (dx < 0) ? -((-dx >> 1) + s) : ((dx >> 1) + s)
-
-// Compute slope values for stepping.
-void ScaleSlope(int src_width,
- int src_height,
- int dst_width,
- int dst_height,
- enum FilterMode filtering,
- int* x,
- int* y,
- int* dx,
- int* dy) {
- assert(x != NULL);
- assert(y != NULL);
- assert(dx != NULL);
- assert(dy != NULL);
- assert(src_width != 0);
- assert(src_height != 0);
- assert(dst_width > 0);
- assert(dst_height > 0);
- // Check for 1 pixel and avoid FixedDiv overflow.
- if (dst_width == 1 && src_width >= 32768) {
- dst_width = src_width;
- }
- if (dst_height == 1 && src_height >= 32768) {
- dst_height = src_height;
- }
- if (filtering == kFilterBox) {
- // Scale step for point sampling duplicates all pixels equally.
- *dx = FixedDiv(Abs(src_width), dst_width);
- *dy = FixedDiv(src_height, dst_height);
- *x = 0;
- *y = 0;
- } else if (filtering == kFilterBilinear) {
- // Scale step for bilinear sampling renders last pixel once for upsample.
- if (dst_width <= Abs(src_width)) {
- *dx = FixedDiv(Abs(src_width), dst_width);
- *x = CENTERSTART(*dx, -32768); // Subtract 0.5 (32768) to center filter.
- } else if (src_width > 1 && dst_width > 1) {
- *dx = FixedDiv1(Abs(src_width), dst_width);
- *x = 0;
- }
- if (dst_height <= src_height) {
- *dy = FixedDiv(src_height, dst_height);
- *y = CENTERSTART(*dy, -32768); // Subtract 0.5 (32768) to center filter.
- } else if (src_height > 1 && dst_height > 1) {
- *dy = FixedDiv1(src_height, dst_height);
- *y = 0;
- }
- } else if (filtering == kFilterLinear) {
- // Scale step for bilinear sampling renders last pixel once for upsample.
- if (dst_width <= Abs(src_width)) {
- *dx = FixedDiv(Abs(src_width), dst_width);
- *x = CENTERSTART(*dx, -32768); // Subtract 0.5 (32768) to center filter.
- } else if (src_width > 1 && dst_width > 1) {
- *dx = FixedDiv1(Abs(src_width), dst_width);
- *x = 0;
- }
- *dy = FixedDiv(src_height, dst_height);
- *y = *dy >> 1;
- } else {
- // Scale step for point sampling duplicates all pixels equally.
- *dx = FixedDiv(Abs(src_width), dst_width);
- *dy = FixedDiv(src_height, dst_height);
- *x = CENTERSTART(*dx, 0);
- *y = CENTERSTART(*dy, 0);
- }
- // Negative src_width means horizontally mirror.
- if (src_width < 0) {
- *x += (dst_width - 1) * *dx;
- *dx = -*dx;
- // src_width = -src_width; // Caller must do this.
- }
-}
-#undef CENTERSTART
-
-// Read 8x2 upsample with filtering and write 16x1.
-// actually reads an extra pixel, so 9x2.
-void ScaleRowUp2_16_C(const uint16_t* src_ptr,
- ptrdiff_t src_stride,
- uint16_t* dst,
- int dst_width) {
- const uint16_t* src2 = src_ptr + src_stride;
-
- int x;
- for (x = 0; x < dst_width - 1; x += 2) {
- uint16_t p0 = src_ptr[0];
- uint16_t p1 = src_ptr[1];
- uint16_t p2 = src2[0];
- uint16_t p3 = src2[1];
- dst[0] = (p0 * 9 + p1 * 3 + p2 * 3 + p3 + 8) >> 4;
- dst[1] = (p0 * 3 + p1 * 9 + p2 + p3 * 3 + 8) >> 4;
- ++src_ptr;
- ++src2;
- dst += 2;
- }
- if (dst_width & 1) {
- uint16_t p0 = src_ptr[0];
- uint16_t p1 = src_ptr[1];
- uint16_t p2 = src2[0];
- uint16_t p3 = src2[1];
- dst[0] = (p0 * 9 + p1 * 3 + p2 * 3 + p3 + 8) >> 4;
- }
-}
-
-#ifdef __cplusplus
-} // extern "C"
-} // namespace libyuv
-#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-23 04:10:44 +0000