mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-11-22 17:30:26 +00:00
53cafa9f3d
This commit adds support for go/cgo tgs conversion when building with the -tags `cgo` The default binaries are still "pure" go and uses the old way of converting. * Move lottie_convert.py conversion code to its own file * Add optional libtgsconverter * Update vendor * Apply suggestions from code review * Update bridge/helper/libtgsconverter.go Co-authored-by: Wim <wim@42.be>
888 lines
27 KiB
C
888 lines
27 KiB
C
// Copyright 2010 Google Inc. All Rights Reserved.
|
|
//
|
|
// Use of this source code is governed by a BSD-style license
|
|
// that can be found in the COPYING 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.
|
|
// -----------------------------------------------------------------------------
|
|
//
|
|
// Speed-critical decoding functions, default plain-C implementations.
|
|
//
|
|
// Author: Skal (pascal.massimino@gmail.com)
|
|
|
|
#include <assert.h>
|
|
|
|
#include "dsp_dsp.h"
|
|
#include "dec_vp8i_dec.h"
|
|
#include "utils_utils.h"
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
static WEBP_INLINE uint8_t clip_8b(int v) {
|
|
return (!(v & ~0xff)) ? v : (v < 0) ? 0 : 255;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Transforms (Paragraph 14.4)
|
|
|
|
#define STORE(x, y, v) \
|
|
dst[(x) + (y) * BPS] = clip_8b(dst[(x) + (y) * BPS] + ((v) >> 3))
|
|
|
|
#define STORE2(y, dc, d, c) do { \
|
|
const int DC = (dc); \
|
|
STORE(0, y, DC + (d)); \
|
|
STORE(1, y, DC + (c)); \
|
|
STORE(2, y, DC - (c)); \
|
|
STORE(3, y, DC - (d)); \
|
|
} while (0)
|
|
|
|
#define MUL1(a) ((((a) * 20091) >> 16) + (a))
|
|
#define MUL2(a) (((a) * 35468) >> 16)
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
static void TransformOne_C(const int16_t* in, uint8_t* dst) {
|
|
int C[4 * 4], *tmp;
|
|
int i;
|
|
tmp = C;
|
|
for (i = 0; i < 4; ++i) { // vertical pass
|
|
const int a = in[0] + in[8]; // [-4096, 4094]
|
|
const int b = in[0] - in[8]; // [-4095, 4095]
|
|
const int c = MUL2(in[4]) - MUL1(in[12]); // [-3783, 3783]
|
|
const int d = MUL1(in[4]) + MUL2(in[12]); // [-3785, 3781]
|
|
tmp[0] = a + d; // [-7881, 7875]
|
|
tmp[1] = b + c; // [-7878, 7878]
|
|
tmp[2] = b - c; // [-7878, 7878]
|
|
tmp[3] = a - d; // [-7877, 7879]
|
|
tmp += 4;
|
|
in++;
|
|
}
|
|
// Each pass is expanding the dynamic range by ~3.85 (upper bound).
|
|
// The exact value is (2. + (20091 + 35468) / 65536).
|
|
// After the second pass, maximum interval is [-3794, 3794], assuming
|
|
// an input in [-2048, 2047] interval. We then need to add a dst value
|
|
// in the [0, 255] range.
|
|
// In the worst case scenario, the input to clip_8b() can be as large as
|
|
// [-60713, 60968].
|
|
tmp = C;
|
|
for (i = 0; i < 4; ++i) { // horizontal pass
|
|
const int dc = tmp[0] + 4;
|
|
const int a = dc + tmp[8];
|
|
const int b = dc - tmp[8];
|
|
const int c = MUL2(tmp[4]) - MUL1(tmp[12]);
|
|
const int d = MUL1(tmp[4]) + MUL2(tmp[12]);
|
|
STORE(0, 0, a + d);
|
|
STORE(1, 0, b + c);
|
|
STORE(2, 0, b - c);
|
|
STORE(3, 0, a - d);
|
|
tmp++;
|
|
dst += BPS;
|
|
}
|
|
}
|
|
|
|
// Simplified transform when only in[0], in[1] and in[4] are non-zero
|
|
static void TransformAC3_C(const int16_t* in, uint8_t* dst) {
|
|
const int a = in[0] + 4;
|
|
const int c4 = MUL2(in[4]);
|
|
const int d4 = MUL1(in[4]);
|
|
const int c1 = MUL2(in[1]);
|
|
const int d1 = MUL1(in[1]);
|
|
STORE2(0, a + d4, d1, c1);
|
|
STORE2(1, a + c4, d1, c1);
|
|
STORE2(2, a - c4, d1, c1);
|
|
STORE2(3, a - d4, d1, c1);
|
|
}
|
|
#undef MUL1
|
|
#undef MUL2
|
|
#undef STORE2
|
|
|
|
static void TransformTwo_C(const int16_t* in, uint8_t* dst, int do_two) {
|
|
TransformOne_C(in, dst);
|
|
if (do_two) {
|
|
TransformOne_C(in + 16, dst + 4);
|
|
}
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE
|
|
|
|
static void TransformUV_C(const int16_t* in, uint8_t* dst) {
|
|
VP8Transform(in + 0 * 16, dst, 1);
|
|
VP8Transform(in + 2 * 16, dst + 4 * BPS, 1);
|
|
}
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
static void TransformDC_C(const int16_t* in, uint8_t* dst) {
|
|
const int DC = in[0] + 4;
|
|
int i, j;
|
|
for (j = 0; j < 4; ++j) {
|
|
for (i = 0; i < 4; ++i) {
|
|
STORE(i, j, DC);
|
|
}
|
|
}
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE
|
|
|
|
static void TransformDCUV_C(const int16_t* in, uint8_t* dst) {
|
|
if (in[0 * 16]) VP8TransformDC(in + 0 * 16, dst);
|
|
if (in[1 * 16]) VP8TransformDC(in + 1 * 16, dst + 4);
|
|
if (in[2 * 16]) VP8TransformDC(in + 2 * 16, dst + 4 * BPS);
|
|
if (in[3 * 16]) VP8TransformDC(in + 3 * 16, dst + 4 * BPS + 4);
|
|
}
|
|
|
|
#undef STORE
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Paragraph 14.3
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
static void TransformWHT_C(const int16_t* in, int16_t* out) {
|
|
int tmp[16];
|
|
int i;
|
|
for (i = 0; i < 4; ++i) {
|
|
const int a0 = in[0 + i] + in[12 + i];
|
|
const int a1 = in[4 + i] + in[ 8 + i];
|
|
const int a2 = in[4 + i] - in[ 8 + i];
|
|
const int a3 = in[0 + i] - in[12 + i];
|
|
tmp[0 + i] = a0 + a1;
|
|
tmp[8 + i] = a0 - a1;
|
|
tmp[4 + i] = a3 + a2;
|
|
tmp[12 + i] = a3 - a2;
|
|
}
|
|
for (i = 0; i < 4; ++i) {
|
|
const int dc = tmp[0 + i * 4] + 3; // w/ rounder
|
|
const int a0 = dc + tmp[3 + i * 4];
|
|
const int a1 = tmp[1 + i * 4] + tmp[2 + i * 4];
|
|
const int a2 = tmp[1 + i * 4] - tmp[2 + i * 4];
|
|
const int a3 = dc - tmp[3 + i * 4];
|
|
out[ 0] = (a0 + a1) >> 3;
|
|
out[16] = (a3 + a2) >> 3;
|
|
out[32] = (a0 - a1) >> 3;
|
|
out[48] = (a3 - a2) >> 3;
|
|
out += 64;
|
|
}
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE
|
|
|
|
void (*VP8TransformWHT)(const int16_t* in, int16_t* out);
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Intra predictions
|
|
|
|
#define DST(x, y) dst[(x) + (y) * BPS]
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
static WEBP_INLINE void TrueMotion(uint8_t* dst, int size) {
|
|
const uint8_t* top = dst - BPS;
|
|
const uint8_t* const clip0 = VP8kclip1 - top[-1];
|
|
int y;
|
|
for (y = 0; y < size; ++y) {
|
|
const uint8_t* const clip = clip0 + dst[-1];
|
|
int x;
|
|
for (x = 0; x < size; ++x) {
|
|
dst[x] = clip[top[x]];
|
|
}
|
|
dst += BPS;
|
|
}
|
|
}
|
|
static void TM4_C(uint8_t* dst) { TrueMotion(dst, 4); }
|
|
static void TM8uv_C(uint8_t* dst) { TrueMotion(dst, 8); }
|
|
static void TM16_C(uint8_t* dst) { TrueMotion(dst, 16); }
|
|
|
|
//------------------------------------------------------------------------------
|
|
// 16x16
|
|
|
|
static void VE16_C(uint8_t* dst) { // vertical
|
|
int j;
|
|
for (j = 0; j < 16; ++j) {
|
|
memcpy(dst + j * BPS, dst - BPS, 16);
|
|
}
|
|
}
|
|
|
|
static void HE16_C(uint8_t* dst) { // horizontal
|
|
int j;
|
|
for (j = 16; j > 0; --j) {
|
|
memset(dst, dst[-1], 16);
|
|
dst += BPS;
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void Put16(int v, uint8_t* dst) {
|
|
int j;
|
|
for (j = 0; j < 16; ++j) {
|
|
memset(dst + j * BPS, v, 16);
|
|
}
|
|
}
|
|
|
|
static void DC16_C(uint8_t* dst) { // DC
|
|
int DC = 16;
|
|
int j;
|
|
for (j = 0; j < 16; ++j) {
|
|
DC += dst[-1 + j * BPS] + dst[j - BPS];
|
|
}
|
|
Put16(DC >> 5, dst);
|
|
}
|
|
|
|
static void DC16NoTop_C(uint8_t* dst) { // DC with top samples not available
|
|
int DC = 8;
|
|
int j;
|
|
for (j = 0; j < 16; ++j) {
|
|
DC += dst[-1 + j * BPS];
|
|
}
|
|
Put16(DC >> 4, dst);
|
|
}
|
|
|
|
static void DC16NoLeft_C(uint8_t* dst) { // DC with left samples not available
|
|
int DC = 8;
|
|
int i;
|
|
for (i = 0; i < 16; ++i) {
|
|
DC += dst[i - BPS];
|
|
}
|
|
Put16(DC >> 4, dst);
|
|
}
|
|
|
|
static void DC16NoTopLeft_C(uint8_t* dst) { // DC with no top and left samples
|
|
Put16(0x80, dst);
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE
|
|
|
|
VP8PredFunc VP8PredLuma16[NUM_B_DC_MODES];
|
|
|
|
//------------------------------------------------------------------------------
|
|
// 4x4
|
|
|
|
#define AVG3(a, b, c) ((uint8_t)(((a) + 2 * (b) + (c) + 2) >> 2))
|
|
#define AVG2(a, b) (((a) + (b) + 1) >> 1)
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
static void VE4_C(uint8_t* dst) { // vertical
|
|
const uint8_t* top = dst - BPS;
|
|
const uint8_t vals[4] = {
|
|
AVG3(top[-1], top[0], top[1]),
|
|
AVG3(top[ 0], top[1], top[2]),
|
|
AVG3(top[ 1], top[2], top[3]),
|
|
AVG3(top[ 2], top[3], top[4])
|
|
};
|
|
int i;
|
|
for (i = 0; i < 4; ++i) {
|
|
memcpy(dst + i * BPS, vals, sizeof(vals));
|
|
}
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE
|
|
|
|
static void HE4_C(uint8_t* dst) { // horizontal
|
|
const int A = dst[-1 - BPS];
|
|
const int B = dst[-1];
|
|
const int C = dst[-1 + BPS];
|
|
const int D = dst[-1 + 2 * BPS];
|
|
const int E = dst[-1 + 3 * BPS];
|
|
WebPUint32ToMem(dst + 0 * BPS, 0x01010101U * AVG3(A, B, C));
|
|
WebPUint32ToMem(dst + 1 * BPS, 0x01010101U * AVG3(B, C, D));
|
|
WebPUint32ToMem(dst + 2 * BPS, 0x01010101U * AVG3(C, D, E));
|
|
WebPUint32ToMem(dst + 3 * BPS, 0x01010101U * AVG3(D, E, E));
|
|
}
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
static void DC4_C(uint8_t* dst) { // DC
|
|
uint32_t dc = 4;
|
|
int i;
|
|
for (i = 0; i < 4; ++i) dc += dst[i - BPS] + dst[-1 + i * BPS];
|
|
dc >>= 3;
|
|
for (i = 0; i < 4; ++i) memset(dst + i * BPS, dc, 4);
|
|
}
|
|
|
|
static void RD4_C(uint8_t* dst) { // Down-right
|
|
const int I = dst[-1 + 0 * BPS];
|
|
const int J = dst[-1 + 1 * BPS];
|
|
const int K = dst[-1 + 2 * BPS];
|
|
const int L = dst[-1 + 3 * BPS];
|
|
const int X = dst[-1 - BPS];
|
|
const int A = dst[0 - BPS];
|
|
const int B = dst[1 - BPS];
|
|
const int C = dst[2 - BPS];
|
|
const int D = dst[3 - BPS];
|
|
DST(0, 3) = AVG3(J, K, L);
|
|
DST(1, 3) = DST(0, 2) = AVG3(I, J, K);
|
|
DST(2, 3) = DST(1, 2) = DST(0, 1) = AVG3(X, I, J);
|
|
DST(3, 3) = DST(2, 2) = DST(1, 1) = DST(0, 0) = AVG3(A, X, I);
|
|
DST(3, 2) = DST(2, 1) = DST(1, 0) = AVG3(B, A, X);
|
|
DST(3, 1) = DST(2, 0) = AVG3(C, B, A);
|
|
DST(3, 0) = AVG3(D, C, B);
|
|
}
|
|
|
|
static void LD4_C(uint8_t* dst) { // Down-Left
|
|
const int A = dst[0 - BPS];
|
|
const int B = dst[1 - BPS];
|
|
const int C = dst[2 - BPS];
|
|
const int D = dst[3 - BPS];
|
|
const int E = dst[4 - BPS];
|
|
const int F = dst[5 - BPS];
|
|
const int G = dst[6 - BPS];
|
|
const int H = dst[7 - BPS];
|
|
DST(0, 0) = AVG3(A, B, C);
|
|
DST(1, 0) = DST(0, 1) = AVG3(B, C, D);
|
|
DST(2, 0) = DST(1, 1) = DST(0, 2) = AVG3(C, D, E);
|
|
DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F);
|
|
DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G);
|
|
DST(3, 2) = DST(2, 3) = AVG3(F, G, H);
|
|
DST(3, 3) = AVG3(G, H, H);
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE
|
|
|
|
static void VR4_C(uint8_t* dst) { // Vertical-Right
|
|
const int I = dst[-1 + 0 * BPS];
|
|
const int J = dst[-1 + 1 * BPS];
|
|
const int K = dst[-1 + 2 * BPS];
|
|
const int X = dst[-1 - BPS];
|
|
const int A = dst[0 - BPS];
|
|
const int B = dst[1 - BPS];
|
|
const int C = dst[2 - BPS];
|
|
const int D = dst[3 - BPS];
|
|
DST(0, 0) = DST(1, 2) = AVG2(X, A);
|
|
DST(1, 0) = DST(2, 2) = AVG2(A, B);
|
|
DST(2, 0) = DST(3, 2) = AVG2(B, C);
|
|
DST(3, 0) = AVG2(C, D);
|
|
|
|
DST(0, 3) = AVG3(K, J, I);
|
|
DST(0, 2) = AVG3(J, I, X);
|
|
DST(0, 1) = DST(1, 3) = AVG3(I, X, A);
|
|
DST(1, 1) = DST(2, 3) = AVG3(X, A, B);
|
|
DST(2, 1) = DST(3, 3) = AVG3(A, B, C);
|
|
DST(3, 1) = AVG3(B, C, D);
|
|
}
|
|
|
|
static void VL4_C(uint8_t* dst) { // Vertical-Left
|
|
const int A = dst[0 - BPS];
|
|
const int B = dst[1 - BPS];
|
|
const int C = dst[2 - BPS];
|
|
const int D = dst[3 - BPS];
|
|
const int E = dst[4 - BPS];
|
|
const int F = dst[5 - BPS];
|
|
const int G = dst[6 - BPS];
|
|
const int H = dst[7 - BPS];
|
|
DST(0, 0) = AVG2(A, B);
|
|
DST(1, 0) = DST(0, 2) = AVG2(B, C);
|
|
DST(2, 0) = DST(1, 2) = AVG2(C, D);
|
|
DST(3, 0) = DST(2, 2) = AVG2(D, E);
|
|
|
|
DST(0, 1) = AVG3(A, B, C);
|
|
DST(1, 1) = DST(0, 3) = AVG3(B, C, D);
|
|
DST(2, 1) = DST(1, 3) = AVG3(C, D, E);
|
|
DST(3, 1) = DST(2, 3) = AVG3(D, E, F);
|
|
DST(3, 2) = AVG3(E, F, G);
|
|
DST(3, 3) = AVG3(F, G, H);
|
|
}
|
|
|
|
static void HU4_C(uint8_t* dst) { // Horizontal-Up
|
|
const int I = dst[-1 + 0 * BPS];
|
|
const int J = dst[-1 + 1 * BPS];
|
|
const int K = dst[-1 + 2 * BPS];
|
|
const int L = dst[-1 + 3 * BPS];
|
|
DST(0, 0) = AVG2(I, J);
|
|
DST(2, 0) = DST(0, 1) = AVG2(J, K);
|
|
DST(2, 1) = DST(0, 2) = AVG2(K, L);
|
|
DST(1, 0) = AVG3(I, J, K);
|
|
DST(3, 0) = DST(1, 1) = AVG3(J, K, L);
|
|
DST(3, 1) = DST(1, 2) = AVG3(K, L, L);
|
|
DST(3, 2) = DST(2, 2) =
|
|
DST(0, 3) = DST(1, 3) = DST(2, 3) = DST(3, 3) = L;
|
|
}
|
|
|
|
static void HD4_C(uint8_t* dst) { // Horizontal-Down
|
|
const int I = dst[-1 + 0 * BPS];
|
|
const int J = dst[-1 + 1 * BPS];
|
|
const int K = dst[-1 + 2 * BPS];
|
|
const int L = dst[-1 + 3 * BPS];
|
|
const int X = dst[-1 - BPS];
|
|
const int A = dst[0 - BPS];
|
|
const int B = dst[1 - BPS];
|
|
const int C = dst[2 - BPS];
|
|
|
|
DST(0, 0) = DST(2, 1) = AVG2(I, X);
|
|
DST(0, 1) = DST(2, 2) = AVG2(J, I);
|
|
DST(0, 2) = DST(2, 3) = AVG2(K, J);
|
|
DST(0, 3) = AVG2(L, K);
|
|
|
|
DST(3, 0) = AVG3(A, B, C);
|
|
DST(2, 0) = AVG3(X, A, B);
|
|
DST(1, 0) = DST(3, 1) = AVG3(I, X, A);
|
|
DST(1, 1) = DST(3, 2) = AVG3(J, I, X);
|
|
DST(1, 2) = DST(3, 3) = AVG3(K, J, I);
|
|
DST(1, 3) = AVG3(L, K, J);
|
|
}
|
|
|
|
#undef DST
|
|
#undef AVG3
|
|
#undef AVG2
|
|
|
|
VP8PredFunc VP8PredLuma4[NUM_BMODES];
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Chroma
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
static void VE8uv_C(uint8_t* dst) { // vertical
|
|
int j;
|
|
for (j = 0; j < 8; ++j) {
|
|
memcpy(dst + j * BPS, dst - BPS, 8);
|
|
}
|
|
}
|
|
|
|
static void HE8uv_C(uint8_t* dst) { // horizontal
|
|
int j;
|
|
for (j = 0; j < 8; ++j) {
|
|
memset(dst, dst[-1], 8);
|
|
dst += BPS;
|
|
}
|
|
}
|
|
|
|
// helper for chroma-DC predictions
|
|
static WEBP_INLINE void Put8x8uv(uint8_t value, uint8_t* dst) {
|
|
int j;
|
|
for (j = 0; j < 8; ++j) {
|
|
memset(dst + j * BPS, value, 8);
|
|
}
|
|
}
|
|
|
|
static void DC8uv_C(uint8_t* dst) { // DC
|
|
int dc0 = 8;
|
|
int i;
|
|
for (i = 0; i < 8; ++i) {
|
|
dc0 += dst[i - BPS] + dst[-1 + i * BPS];
|
|
}
|
|
Put8x8uv(dc0 >> 4, dst);
|
|
}
|
|
|
|
static void DC8uvNoLeft_C(uint8_t* dst) { // DC with no left samples
|
|
int dc0 = 4;
|
|
int i;
|
|
for (i = 0; i < 8; ++i) {
|
|
dc0 += dst[i - BPS];
|
|
}
|
|
Put8x8uv(dc0 >> 3, dst);
|
|
}
|
|
|
|
static void DC8uvNoTop_C(uint8_t* dst) { // DC with no top samples
|
|
int dc0 = 4;
|
|
int i;
|
|
for (i = 0; i < 8; ++i) {
|
|
dc0 += dst[-1 + i * BPS];
|
|
}
|
|
Put8x8uv(dc0 >> 3, dst);
|
|
}
|
|
|
|
static void DC8uvNoTopLeft_C(uint8_t* dst) { // DC with nothing
|
|
Put8x8uv(0x80, dst);
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE
|
|
|
|
VP8PredFunc VP8PredChroma8[NUM_B_DC_MODES];
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Edge filtering functions
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
// 4 pixels in, 2 pixels out
|
|
static WEBP_INLINE void DoFilter2_C(uint8_t* p, int step) {
|
|
const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step];
|
|
const int a = 3 * (q0 - p0) + VP8ksclip1[p1 - q1]; // in [-893,892]
|
|
const int a1 = VP8ksclip2[(a + 4) >> 3]; // in [-16,15]
|
|
const int a2 = VP8ksclip2[(a + 3) >> 3];
|
|
p[-step] = VP8kclip1[p0 + a2];
|
|
p[ 0] = VP8kclip1[q0 - a1];
|
|
}
|
|
|
|
// 4 pixels in, 4 pixels out
|
|
static WEBP_INLINE void DoFilter4_C(uint8_t* p, int step) {
|
|
const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step];
|
|
const int a = 3 * (q0 - p0);
|
|
const int a1 = VP8ksclip2[(a + 4) >> 3];
|
|
const int a2 = VP8ksclip2[(a + 3) >> 3];
|
|
const int a3 = (a1 + 1) >> 1;
|
|
p[-2*step] = VP8kclip1[p1 + a3];
|
|
p[- step] = VP8kclip1[p0 + a2];
|
|
p[ 0] = VP8kclip1[q0 - a1];
|
|
p[ step] = VP8kclip1[q1 - a3];
|
|
}
|
|
|
|
// 6 pixels in, 6 pixels out
|
|
static WEBP_INLINE void DoFilter6_C(uint8_t* p, int step) {
|
|
const int p2 = p[-3*step], p1 = p[-2*step], p0 = p[-step];
|
|
const int q0 = p[0], q1 = p[step], q2 = p[2*step];
|
|
const int a = VP8ksclip1[3 * (q0 - p0) + VP8ksclip1[p1 - q1]];
|
|
// a is in [-128,127], a1 in [-27,27], a2 in [-18,18] and a3 in [-9,9]
|
|
const int a1 = (27 * a + 63) >> 7; // eq. to ((3 * a + 7) * 9) >> 7
|
|
const int a2 = (18 * a + 63) >> 7; // eq. to ((2 * a + 7) * 9) >> 7
|
|
const int a3 = (9 * a + 63) >> 7; // eq. to ((1 * a + 7) * 9) >> 7
|
|
p[-3*step] = VP8kclip1[p2 + a3];
|
|
p[-2*step] = VP8kclip1[p1 + a2];
|
|
p[- step] = VP8kclip1[p0 + a1];
|
|
p[ 0] = VP8kclip1[q0 - a1];
|
|
p[ step] = VP8kclip1[q1 - a2];
|
|
p[ 2*step] = VP8kclip1[q2 - a3];
|
|
}
|
|
|
|
static WEBP_INLINE int Hev(const uint8_t* p, int step, int thresh) {
|
|
const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step];
|
|
return (VP8kabs0[p1 - p0] > thresh) || (VP8kabs0[q1 - q0] > thresh);
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
static WEBP_INLINE int NeedsFilter_C(const uint8_t* p, int step, int t) {
|
|
const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step];
|
|
return ((4 * VP8kabs0[p0 - q0] + VP8kabs0[p1 - q1]) <= t);
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
static WEBP_INLINE int NeedsFilter2_C(const uint8_t* p,
|
|
int step, int t, int it) {
|
|
const int p3 = p[-4 * step], p2 = p[-3 * step], p1 = p[-2 * step];
|
|
const int p0 = p[-step], q0 = p[0];
|
|
const int q1 = p[step], q2 = p[2 * step], q3 = p[3 * step];
|
|
if ((4 * VP8kabs0[p0 - q0] + VP8kabs0[p1 - q1]) > t) return 0;
|
|
return VP8kabs0[p3 - p2] <= it && VP8kabs0[p2 - p1] <= it &&
|
|
VP8kabs0[p1 - p0] <= it && VP8kabs0[q3 - q2] <= it &&
|
|
VP8kabs0[q2 - q1] <= it && VP8kabs0[q1 - q0] <= it;
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Simple In-loop filtering (Paragraph 15.2)
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
static void SimpleVFilter16_C(uint8_t* p, int stride, int thresh) {
|
|
int i;
|
|
const int thresh2 = 2 * thresh + 1;
|
|
for (i = 0; i < 16; ++i) {
|
|
if (NeedsFilter_C(p + i, stride, thresh2)) {
|
|
DoFilter2_C(p + i, stride);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void SimpleHFilter16_C(uint8_t* p, int stride, int thresh) {
|
|
int i;
|
|
const int thresh2 = 2 * thresh + 1;
|
|
for (i = 0; i < 16; ++i) {
|
|
if (NeedsFilter_C(p + i * stride, 1, thresh2)) {
|
|
DoFilter2_C(p + i * stride, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void SimpleVFilter16i_C(uint8_t* p, int stride, int thresh) {
|
|
int k;
|
|
for (k = 3; k > 0; --k) {
|
|
p += 4 * stride;
|
|
SimpleVFilter16_C(p, stride, thresh);
|
|
}
|
|
}
|
|
|
|
static void SimpleHFilter16i_C(uint8_t* p, int stride, int thresh) {
|
|
int k;
|
|
for (k = 3; k > 0; --k) {
|
|
p += 4;
|
|
SimpleHFilter16_C(p, stride, thresh);
|
|
}
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Complex In-loop filtering (Paragraph 15.3)
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
static WEBP_INLINE void FilterLoop26_C(uint8_t* p,
|
|
int hstride, int vstride, int size,
|
|
int thresh, int ithresh,
|
|
int hev_thresh) {
|
|
const int thresh2 = 2 * thresh + 1;
|
|
while (size-- > 0) {
|
|
if (NeedsFilter2_C(p, hstride, thresh2, ithresh)) {
|
|
if (Hev(p, hstride, hev_thresh)) {
|
|
DoFilter2_C(p, hstride);
|
|
} else {
|
|
DoFilter6_C(p, hstride);
|
|
}
|
|
}
|
|
p += vstride;
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void FilterLoop24_C(uint8_t* p,
|
|
int hstride, int vstride, int size,
|
|
int thresh, int ithresh,
|
|
int hev_thresh) {
|
|
const int thresh2 = 2 * thresh + 1;
|
|
while (size-- > 0) {
|
|
if (NeedsFilter2_C(p, hstride, thresh2, ithresh)) {
|
|
if (Hev(p, hstride, hev_thresh)) {
|
|
DoFilter2_C(p, hstride);
|
|
} else {
|
|
DoFilter4_C(p, hstride);
|
|
}
|
|
}
|
|
p += vstride;
|
|
}
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
// on macroblock edges
|
|
static void VFilter16_C(uint8_t* p, int stride,
|
|
int thresh, int ithresh, int hev_thresh) {
|
|
FilterLoop26_C(p, stride, 1, 16, thresh, ithresh, hev_thresh);
|
|
}
|
|
|
|
static void HFilter16_C(uint8_t* p, int stride,
|
|
int thresh, int ithresh, int hev_thresh) {
|
|
FilterLoop26_C(p, 1, stride, 16, thresh, ithresh, hev_thresh);
|
|
}
|
|
|
|
// on three inner edges
|
|
static void VFilter16i_C(uint8_t* p, int stride,
|
|
int thresh, int ithresh, int hev_thresh) {
|
|
int k;
|
|
for (k = 3; k > 0; --k) {
|
|
p += 4 * stride;
|
|
FilterLoop24_C(p, stride, 1, 16, thresh, ithresh, hev_thresh);
|
|
}
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
static void HFilter16i_C(uint8_t* p, int stride,
|
|
int thresh, int ithresh, int hev_thresh) {
|
|
int k;
|
|
for (k = 3; k > 0; --k) {
|
|
p += 4;
|
|
FilterLoop24_C(p, 1, stride, 16, thresh, ithresh, hev_thresh);
|
|
}
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
// 8-pixels wide variant, for chroma filtering
|
|
static void VFilter8_C(uint8_t* u, uint8_t* v, int stride,
|
|
int thresh, int ithresh, int hev_thresh) {
|
|
FilterLoop26_C(u, stride, 1, 8, thresh, ithresh, hev_thresh);
|
|
FilterLoop26_C(v, stride, 1, 8, thresh, ithresh, hev_thresh);
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
static void HFilter8_C(uint8_t* u, uint8_t* v, int stride,
|
|
int thresh, int ithresh, int hev_thresh) {
|
|
FilterLoop26_C(u, 1, stride, 8, thresh, ithresh, hev_thresh);
|
|
FilterLoop26_C(v, 1, stride, 8, thresh, ithresh, hev_thresh);
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
static void VFilter8i_C(uint8_t* u, uint8_t* v, int stride,
|
|
int thresh, int ithresh, int hev_thresh) {
|
|
FilterLoop24_C(u + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh);
|
|
FilterLoop24_C(v + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh);
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
static void HFilter8i_C(uint8_t* u, uint8_t* v, int stride,
|
|
int thresh, int ithresh, int hev_thresh) {
|
|
FilterLoop24_C(u + 4, 1, stride, 8, thresh, ithresh, hev_thresh);
|
|
FilterLoop24_C(v + 4, 1, stride, 8, thresh, ithresh, hev_thresh);
|
|
}
|
|
#endif // !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
static void DitherCombine8x8_C(const uint8_t* dither, uint8_t* dst,
|
|
int dst_stride) {
|
|
int i, j;
|
|
for (j = 0; j < 8; ++j) {
|
|
for (i = 0; i < 8; ++i) {
|
|
const int delta0 = dither[i] - VP8_DITHER_AMP_CENTER;
|
|
const int delta1 =
|
|
(delta0 + VP8_DITHER_DESCALE_ROUNDER) >> VP8_DITHER_DESCALE;
|
|
dst[i] = clip_8b((int)dst[i] + delta1);
|
|
}
|
|
dst += dst_stride;
|
|
dither += 8;
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
VP8DecIdct2 VP8Transform;
|
|
VP8DecIdct VP8TransformAC3;
|
|
VP8DecIdct VP8TransformUV;
|
|
VP8DecIdct VP8TransformDC;
|
|
VP8DecIdct VP8TransformDCUV;
|
|
|
|
VP8LumaFilterFunc VP8VFilter16;
|
|
VP8LumaFilterFunc VP8HFilter16;
|
|
VP8ChromaFilterFunc VP8VFilter8;
|
|
VP8ChromaFilterFunc VP8HFilter8;
|
|
VP8LumaFilterFunc VP8VFilter16i;
|
|
VP8LumaFilterFunc VP8HFilter16i;
|
|
VP8ChromaFilterFunc VP8VFilter8i;
|
|
VP8ChromaFilterFunc VP8HFilter8i;
|
|
VP8SimpleFilterFunc VP8SimpleVFilter16;
|
|
VP8SimpleFilterFunc VP8SimpleHFilter16;
|
|
VP8SimpleFilterFunc VP8SimpleVFilter16i;
|
|
VP8SimpleFilterFunc VP8SimpleHFilter16i;
|
|
|
|
void (*VP8DitherCombine8x8)(const uint8_t* dither, uint8_t* dst,
|
|
int dst_stride);
|
|
|
|
extern void VP8DspInitSSE2(void);
|
|
extern void VP8DspInitSSE41(void);
|
|
extern void VP8DspInitNEON(void);
|
|
extern void VP8DspInitMIPS32(void);
|
|
extern void VP8DspInitMIPSdspR2(void);
|
|
extern void VP8DspInitMSA(void);
|
|
|
|
WEBP_DSP_INIT_FUNC(VP8DspInit) {
|
|
VP8InitClipTables();
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
VP8TransformWHT = TransformWHT_C;
|
|
VP8Transform = TransformTwo_C;
|
|
VP8TransformDC = TransformDC_C;
|
|
VP8TransformAC3 = TransformAC3_C;
|
|
#endif
|
|
VP8TransformUV = TransformUV_C;
|
|
VP8TransformDCUV = TransformDCUV_C;
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
VP8VFilter16 = VFilter16_C;
|
|
VP8VFilter16i = VFilter16i_C;
|
|
VP8HFilter16 = HFilter16_C;
|
|
VP8VFilter8 = VFilter8_C;
|
|
VP8VFilter8i = VFilter8i_C;
|
|
VP8SimpleVFilter16 = SimpleVFilter16_C;
|
|
VP8SimpleHFilter16 = SimpleHFilter16_C;
|
|
VP8SimpleVFilter16i = SimpleVFilter16i_C;
|
|
VP8SimpleHFilter16i = SimpleHFilter16i_C;
|
|
#endif
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE || WEBP_NEON_WORK_AROUND_GCC
|
|
VP8HFilter16i = HFilter16i_C;
|
|
VP8HFilter8 = HFilter8_C;
|
|
VP8HFilter8i = HFilter8i_C;
|
|
#endif
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
VP8PredLuma4[0] = DC4_C;
|
|
VP8PredLuma4[1] = TM4_C;
|
|
VP8PredLuma4[2] = VE4_C;
|
|
VP8PredLuma4[4] = RD4_C;
|
|
VP8PredLuma4[6] = LD4_C;
|
|
#endif
|
|
|
|
VP8PredLuma4[3] = HE4_C;
|
|
VP8PredLuma4[5] = VR4_C;
|
|
VP8PredLuma4[7] = VL4_C;
|
|
VP8PredLuma4[8] = HD4_C;
|
|
VP8PredLuma4[9] = HU4_C;
|
|
|
|
#if !WEBP_NEON_OMIT_C_CODE
|
|
VP8PredLuma16[0] = DC16_C;
|
|
VP8PredLuma16[1] = TM16_C;
|
|
VP8PredLuma16[2] = VE16_C;
|
|
VP8PredLuma16[3] = HE16_C;
|
|
VP8PredLuma16[4] = DC16NoTop_C;
|
|
VP8PredLuma16[5] = DC16NoLeft_C;
|
|
VP8PredLuma16[6] = DC16NoTopLeft_C;
|
|
|
|
VP8PredChroma8[0] = DC8uv_C;
|
|
VP8PredChroma8[1] = TM8uv_C;
|
|
VP8PredChroma8[2] = VE8uv_C;
|
|
VP8PredChroma8[3] = HE8uv_C;
|
|
VP8PredChroma8[4] = DC8uvNoTop_C;
|
|
VP8PredChroma8[5] = DC8uvNoLeft_C;
|
|
VP8PredChroma8[6] = DC8uvNoTopLeft_C;
|
|
#endif
|
|
|
|
VP8DitherCombine8x8 = DitherCombine8x8_C;
|
|
|
|
// If defined, use CPUInfo() to overwrite some pointers with faster versions.
|
|
if (VP8GetCPUInfo != NULL) {
|
|
#if defined(WEBP_USE_SSE2)
|
|
if (VP8GetCPUInfo(kSSE2)) {
|
|
VP8DspInitSSE2();
|
|
#if defined(WEBP_USE_SSE41)
|
|
if (VP8GetCPUInfo(kSSE4_1)) {
|
|
VP8DspInitSSE41();
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
#if defined(WEBP_USE_MIPS32)
|
|
if (VP8GetCPUInfo(kMIPS32)) {
|
|
VP8DspInitMIPS32();
|
|
}
|
|
#endif
|
|
#if defined(WEBP_USE_MIPS_DSP_R2)
|
|
if (VP8GetCPUInfo(kMIPSdspR2)) {
|
|
VP8DspInitMIPSdspR2();
|
|
}
|
|
#endif
|
|
#if defined(WEBP_USE_MSA)
|
|
if (VP8GetCPUInfo(kMSA)) {
|
|
VP8DspInitMSA();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#if defined(WEBP_USE_NEON)
|
|
if (WEBP_NEON_OMIT_C_CODE ||
|
|
(VP8GetCPUInfo != NULL && VP8GetCPUInfo(kNEON))) {
|
|
VP8DspInitNEON();
|
|
}
|
|
#endif
|
|
|
|
assert(VP8TransformWHT != NULL);
|
|
assert(VP8Transform != NULL);
|
|
assert(VP8TransformDC != NULL);
|
|
assert(VP8TransformAC3 != NULL);
|
|
assert(VP8TransformUV != NULL);
|
|
assert(VP8TransformDCUV != NULL);
|
|
assert(VP8VFilter16 != NULL);
|
|
assert(VP8HFilter16 != NULL);
|
|
assert(VP8VFilter8 != NULL);
|
|
assert(VP8HFilter8 != NULL);
|
|
assert(VP8VFilter16i != NULL);
|
|
assert(VP8HFilter16i != NULL);
|
|
assert(VP8VFilter8i != NULL);
|
|
assert(VP8HFilter8i != NULL);
|
|
assert(VP8SimpleVFilter16 != NULL);
|
|
assert(VP8SimpleHFilter16 != NULL);
|
|
assert(VP8SimpleVFilter16i != NULL);
|
|
assert(VP8SimpleHFilter16i != NULL);
|
|
assert(VP8PredLuma4[0] != NULL);
|
|
assert(VP8PredLuma4[1] != NULL);
|
|
assert(VP8PredLuma4[2] != NULL);
|
|
assert(VP8PredLuma4[3] != NULL);
|
|
assert(VP8PredLuma4[4] != NULL);
|
|
assert(VP8PredLuma4[5] != NULL);
|
|
assert(VP8PredLuma4[6] != NULL);
|
|
assert(VP8PredLuma4[7] != NULL);
|
|
assert(VP8PredLuma4[8] != NULL);
|
|
assert(VP8PredLuma4[9] != NULL);
|
|
assert(VP8PredLuma16[0] != NULL);
|
|
assert(VP8PredLuma16[1] != NULL);
|
|
assert(VP8PredLuma16[2] != NULL);
|
|
assert(VP8PredLuma16[3] != NULL);
|
|
assert(VP8PredLuma16[4] != NULL);
|
|
assert(VP8PredLuma16[5] != NULL);
|
|
assert(VP8PredLuma16[6] != NULL);
|
|
assert(VP8PredChroma8[0] != NULL);
|
|
assert(VP8PredChroma8[1] != NULL);
|
|
assert(VP8PredChroma8[2] != NULL);
|
|
assert(VP8PredChroma8[3] != NULL);
|
|
assert(VP8PredChroma8[4] != NULL);
|
|
assert(VP8PredChroma8[5] != NULL);
|
|
assert(VP8PredChroma8[6] != NULL);
|
|
assert(VP8DitherCombine8x8 != NULL);
|
|
}
|