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neon: add INIT_VECTOR4

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used to initialize NxMx4 vector types
replaces initialization via '{{ }}' gnu-ism.

Change-Id: I0da7b3d321f3d48579b7863fb2e4d3f449ae7f5e
This commit is contained in:
James Zern 2014-06-29 13:40:45 -07:00
parent 6c1c632b03
commit bc03670f01
5 changed files with 53 additions and 29 deletions
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30
src/dsp/dec_neon.c
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@ -49,7 +49,9 @@
// (register alloc, probably). The variants somewhat mitigate the problem, but
// not quite. HFilter16i() remains problematic.
static WEBP_INLINE uint8x8x4_t Load4x8(const uint8_t* const src, int stride) {
uint8x8x4_t out = {{{0}, {0}, {0}, {0}}};
const uint8x8_t zero = vdup_n_u8(0);
uint8x8x4_t out;
INIT_VECTOR4(out, zero, zero, zero, zero);
out = vld4_lane_u8(src + 0 * stride, out, 0);
out = vld4_lane_u8(src + 1 * stride, out, 1);
out = vld4_lane_u8(src + 2 * stride, out, 2);
@ -84,7 +86,9 @@ static WEBP_INLINE void Load4x16(const uint8_t* const src, int stride,
static WEBP_INLINE void Load4x16(const uint8_t* src, int stride,
uint8x16_t* const p1, uint8x16_t* const p0,
uint8x16_t* const q0, uint8x16_t* const q1) {
uint32x4x4_t in = {{{0}, {0}, {0}, {0}}};
const uint32x4_t zero = vdupq_n_u32(0);
uint32x4x4_t in;
INIT_VECTOR4(in, zero, zero, zero, zero);
src -= 2;
LOADQ_LANE_32b(in.val[0], 0);
LOADQ_LANE_32b(in.val[1], 0);
@ -273,10 +277,13 @@ static WEBP_INLINE void Store4x8(const uint8x8x4_t v,
static WEBP_INLINE void Store4x16(const uint8x16_t p1, const uint8x16_t p0,
const uint8x16_t q0, const uint8x16_t q1,
uint8_t* const dst, int stride) {
const uint8x8x4_t lo = {{ vget_low_u8(p1), vget_low_u8(p0),
vget_low_u8(q0), vget_low_u8(q1) }};
const uint8x8x4_t hi = {{ vget_high_u8(p1), vget_high_u8(p0),
vget_high_u8(q0), vget_high_u8(q1) }};
uint8x8x4_t lo, hi;
INIT_VECTOR4(lo,
vget_low_u8(p1), vget_low_u8(p0),
vget_low_u8(q0), vget_low_u8(q1));
INIT_VECTOR4(hi,
vget_high_u8(p1), vget_high_u8(p0),
vget_high_u8(q0), vget_high_u8(q1));
Store4x8(lo, dst - 2 + 0 * stride, stride);
Store4x8(hi, dst - 2 + 8 * stride, stride);
}
@ -355,10 +362,13 @@ static WEBP_INLINE void Store4x8x2(const uint8x16_t p1, const uint8x16_t p0,
const uint8x16_t q0, const uint8x16_t q1,
uint8_t* const u, uint8_t* const v,
int stride) {
const uint8x8x4_t u0 = {{ vget_low_u8(p1), vget_low_u8(p0),
vget_low_u8(q0), vget_low_u8(q1) }};
const uint8x8x4_t v0 = {{ vget_high_u8(p1), vget_high_u8(p0),
vget_high_u8(q0), vget_high_u8(q1) }};
uint8x8x4_t u0, v0;
INIT_VECTOR4(u0,
vget_low_u8(p1), vget_low_u8(p0),
vget_low_u8(q0), vget_low_u8(q1));
INIT_VECTOR4(v0,
vget_high_u8(p1), vget_high_u8(p0),
vget_high_u8(q0), vget_high_u8(q1));
vst4_lane_u8(u - 2 + 0 * stride, u0, 0);
vst4_lane_u8(u - 2 + 1 * stride, u0, 1);
vst4_lane_u8(u - 2 + 2 * stride, u0, 2);

17
src/dsp/enc_neon.c
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@ -479,9 +479,11 @@ static void FTransform(const uint8_t* src, const uint8_t* ref,
} while (0)
static void FTransformWHT(const int16_t* src, int16_t* out) {
int32x4x4_t tmp0;
const int stride = 16;
int16x4x4_t in = {{{0}, {0}, {0}, {0}}};
const int16x4_t zero = vdup_n_s16(0);
int32x4x4_t tmp0;
int16x4x4_t in;
INIT_VECTOR4(in, zero, zero, zero, zero);
LOAD_LANE_16b(in.val[0], 0);
LOAD_LANE_16b(in.val[1], 0);
LOAD_LANE_16b(in.val[2], 0);
@ -1010,11 +1012,12 @@ static int QuantizeBlock(int16_t in[16], int16_t out[16],
const VP8Matrix* const mtx) {
const int16x8_t out0 = Quantize(in, mtx, 0);
const int16x8_t out1 = Quantize(in, mtx, 8);
const uint8x8x4_t all_out = {{
vreinterpret_u8_s16(vget_low_s16(out0)),
vreinterpret_u8_s16(vget_high_s16(out0)),
vreinterpret_u8_s16(vget_low_s16(out1)),
vreinterpret_u8_s16(vget_high_s16(out1)) }};
uint8x8x4_t all_out;
INIT_VECTOR4(all_out,
vreinterpret_u8_s16(vget_low_s16(out0)),
vreinterpret_u8_s16(vget_high_s16(out0)),
vreinterpret_u8_s16(vget_low_s16(out1)),
vreinterpret_u8_s16(vget_high_s16(out1)));
// Zigzag reordering
vst1_u8((uint8_t*)(out + 0), vtbl4_u8(all_out, vld1_u8(kShuffles[0])));
vst1_u8((uint8_t*)(out + 4), vtbl4_u8(all_out, vld1_u8(kShuffles[1])));

22
src/dsp/lossless_neon.c
View File

@ -96,11 +96,12 @@ static void ConvertBGRAToBGR(const uint32_t* src,
const uint8x8_t shuffle1 = vld1_u8(kBGRShuffle[1]);
const uint8x8_t shuffle2 = vld1_u8(kBGRShuffle[2]);
for (; src < end; src += 8) {
const uint8x8x4_t pixels = {{
vld1_u8((const uint8_t*)(src + 0)),
vld1_u8((const uint8_t*)(src + 2)),
vld1_u8((const uint8_t*)(src + 4)),
vld1_u8((const uint8_t*)(src + 6)) }};
uint8x8x4_t pixels;
INIT_VECTOR4(pixels,
vld1_u8((const uint8_t*)(src + 0)),
vld1_u8((const uint8_t*)(src + 2)),
vld1_u8((const uint8_t*)(src + 4)),
vld1_u8((const uint8_t*)(src + 6)));
vst1_u8(dst + 0, vtbl4_u8(pixels, shuffle0));
vst1_u8(dst + 8, vtbl4_u8(pixels, shuffle1));
vst1_u8(dst + 16, vtbl4_u8(pixels, shuffle2));
@ -122,11 +123,12 @@ static void ConvertBGRAToRGB(const uint32_t* src,
const uint8x8_t shuffle1 = vld1_u8(kRGBShuffle[1]);
const uint8x8_t shuffle2 = vld1_u8(kRGBShuffle[2]);
for (; src < end; src += 8) {
const uint8x8x4_t pixels = {{
vld1_u8((const uint8_t*)(src + 0)),
vld1_u8((const uint8_t*)(src + 2)),
vld1_u8((const uint8_t*)(src + 4)),
vld1_u8((const uint8_t*)(src + 6)) }};
uint8x8x4_t pixels;
INIT_VECTOR4(pixels,
vld1_u8((const uint8_t*)(src + 0)),
vld1_u8((const uint8_t*)(src + 2)),
vld1_u8((const uint8_t*)(src + 4)),
vld1_u8((const uint8_t*)(src + 6)));
vst1_u8(dst + 0, vtbl4_u8(pixels, shuffle0));
vst1_u8(dst + 8, vtbl4_u8(pixels, shuffle1));
vst1_u8(dst + 16, vtbl4_u8(pixels, shuffle2));

7
src/dsp/neon.h
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@ -33,6 +33,13 @@
v.val[2] = c; \
} while (0)
#define INIT_VECTOR4(v, a, b, c, d) do { \
v.val[0] = a; \
v.val[1] = b; \
v.val[2] = c; \
v.val[3] = d; \
} while (0)
// if using intrinsics, this flag avoids some functions that make gcc-4.6.3
// crash ("internal compiler error: in immed_double_const, at emit-rtl.").
// (probably similar to gcc.gnu.org/bugzilla/show_bug.cgi?id=48183)

6
src/dsp/upsampling_neon.c
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@ -106,12 +106,14 @@ static const int16_t kCoeffs[4] = { kYScale, kVToR, kUToG, kVToG };
} while (0)
#define STORE_Rgba(out, r, g, b) do { \
const uint8x8x4_t r_g_b_v255 = {{ r, g, b, v255 }}; \
uint8x8x4_t r_g_b_v255; \
INIT_VECTOR4(r_g_b_v255, r, g, b, v255); \
vst4_u8(out, r_g_b_v255); \
} while (0)
#define STORE_Bgra(out, r, g, b) do { \
const uint8x8x4_t b_g_r_v255 = {{ b, g, r, v255 }}; \
uint8x8x4_t b_g_r_v255; \
INIT_VECTOR4(b_g_r_v255, b, g, r, v255); \
vst4_u8(out, b_g_r_v255); \
} while (0)