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Updated meshoptimizer.

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This commit is contained in:
Бранимир Караџић
2020-02-21 21:01:11 -08:00
parent d7e3f03780
commit c009e157e7
3 changed files with 342 additions and 5 deletions
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27
3rdparty/meshoptimizer/src/vertexcodec.cpp vendored
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@@ -35,9 +35,9 @@
#define SIMD_NEON
#endif
// WebAssembly SIMD implementation requires a few bleeding edge intrinsics that are only available in Chrome Canary
#if defined(__wasm_simd128__) && defined(__wasm_unimplemented_simd128__)
#if defined(__wasm_simd128__)
#define SIMD_WASM
#define SIMD_TARGET __attribute__((target("unimplemented-simd128")))
#endif
#ifndef SIMD_TARGET
@@ -83,6 +83,15 @@
#define wasmx_unpackhi_v64x2(a, b) wasm_v8x16_shuffle(a, b, 8, 9, 10, 11, 12, 13, 14, 15, 24, 25, 26, 27, 28, 29, 30, 31)
#endif
#if defined(SIMD_WASM)
// v128_t wasm_v8x16_swizzle(v128_t a, v128_t b)
SIMD_TARGET
static __inline__ v128_t __DEFAULT_FN_ATTRS wasm_v8x16_swizzle(v128_t a, v128_t b)
{
return (v128_t)__builtin_wasm_swizzle_v8x16((__i8x16)a, (__i8x16)b);
}
#endif
namespace meshopt
{
@@ -715,6 +724,7 @@ static const unsigned char* decodeBytesGroupSimd(const unsigned char* data, unsi
#endif
#ifdef SIMD_WASM
SIMD_TARGET
static v128_t decodeShuffleMask(unsigned char mask0, unsigned char mask1)
{
// TODO: 8b buffer overrun - should we use splat or extend buffers?
@@ -730,6 +740,7 @@ static v128_t decodeShuffleMask(unsigned char mask0, unsigned char mask1)
return wasmx_unpacklo_v64x2(sm0, sm1r);
}
SIMD_TARGET
static void wasmMoveMask(v128_t mask, unsigned char& mask0, unsigned char& mask1)
{
v128_t mask_0 = wasmx_swizzle_v32x4(mask, 0, 2, 1, 3);
@@ -746,6 +757,7 @@ static void wasmMoveMask(v128_t mask, unsigned char& mask0, unsigned char& mask1
mask1 = uint8_t(mask_8 >> 32);
}
SIMD_TARGET
static const unsigned char* decodeBytesGroupSimd(const unsigned char* data, unsigned char* buffer, int bitslog2)
{
unsigned char byte, enc, encv;
@@ -877,6 +889,7 @@ static uint8x16_t unzigzag8(uint8x16_t v)
#endif
#ifdef SIMD_WASM
SIMD_TARGET
static void transpose8(v128_t& x0, v128_t& x1, v128_t& x2, v128_t& x3)
{
v128_t t0 = wasmx_unpacklo_v8x16(x0, x1);
@@ -890,6 +903,7 @@ static void transpose8(v128_t& x0, v128_t& x1, v128_t& x2, v128_t& x3)
x3 = wasmx_unpackhi_v16x8(t1, t3);
}
SIMD_TARGET
static v128_t unzigzag8(v128_t v)
{
v128_t xl = wasm_i8x16_neg(wasm_v128_and(v, wasm_i8x16_splat(1)));
@@ -1083,9 +1097,12 @@ size_t meshopt_encodeVertexBuffer(unsigned char* buffer, size_t buffer_size, con
*data++ = kVertexHeader;
unsigned char last_vertex[256] = {};
unsigned char first_vertex[256] = {};
if (vertex_count > 0)
memcpy(last_vertex, vertex_data, vertex_size);
memcpy(first_vertex, vertex_data, vertex_size);
unsigned char last_vertex[256] = {};
memcpy(last_vertex, first_vertex, vertex_size);
size_t vertex_block_size = getVertexBlockSize(vertex_size);
@@ -1114,7 +1131,7 @@ size_t meshopt_encodeVertexBuffer(unsigned char* buffer, size_t buffer_size, con
data += kTailMaxSize - vertex_size;
}
memcpy(data, vertex_data, vertex_size);
memcpy(data, first_vertex, vertex_size);
data += vertex_size;
assert(data >= buffer + tail_size);