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Update libwebp to 1.0.0

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This commit is contained in:
volzhs
2018-05-16 00:00:06 +09:00
parent 47d4a011d8
commit 6ed8124923
49 changed files with 1589 additions and 367 deletions
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20
thirdparty/libwebp/src/dsp/rescaler_sse2.c vendored
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@@ -36,7 +36,7 @@ static void LoadTwoPixels_SSE2(const uint8_t* const src, __m128i* out) {
}
// input: 8 bytes ABCDEFGH -> output: A0B0C0D0E0F0G0H0
static void LoadHeightPixels_SSE2(const uint8_t* const src, __m128i* out) {
static void LoadEightPixels_SSE2(const uint8_t* const src, __m128i* out) {
const __m128i zero = _mm_setzero_si128();
const __m128i A = _mm_loadl_epi64((const __m128i*)(src)); // ABCDEFGH
*out = _mm_unpacklo_epi8(A, zero);
@@ -50,13 +50,15 @@ static void RescalerImportRowExpand_SSE2(WebPRescaler* const wrk,
int accum = x_add;
__m128i cur_pixels;
// SSE2 implementation only works with 16b signed arithmetic at max.
if (wrk->src_width < 8 || accum >= (1 << 15)) {
WebPRescalerImportRowExpand_C(wrk, src);
return;
}
assert(!WebPRescalerInputDone(wrk));
assert(wrk->x_expand);
if (wrk->num_channels == 4) {
if (wrk->src_width < 2) {
WebPRescalerImportRowExpand_C(wrk, src);
return;
}
LoadTwoPixels_SSE2(src, &cur_pixels);
src += 4;
while (1) {
@@ -75,11 +77,7 @@ static void RescalerImportRowExpand_SSE2(WebPRescaler* const wrk,
} else {
int left;
const uint8_t* const src_limit = src + wrk->src_width - 8;
if (wrk->src_width < 8) {
WebPRescalerImportRowExpand_C(wrk, src);
return;
}
LoadHeightPixels_SSE2(src, &cur_pixels);
LoadEightPixels_SSE2(src, &cur_pixels);
src += 7;
left = 7;
while (1) {
@@ -94,7 +92,7 @@ static void RescalerImportRowExpand_SSE2(WebPRescaler* const wrk,
if (--left) {
cur_pixels = _mm_srli_si128(cur_pixels, 2);
} else if (src <= src_limit) {
LoadHeightPixels_SSE2(src, &cur_pixels);
LoadEightPixels_SSE2(src, &cur_pixels);
src += 7;
left = 7;
} else { // tail