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VideoCommon: merged SSSE3/SSE4.1 codes. Added some additional SSSE3/SSE4.1 codes which will be used in "The Legend of Zelda: Twilight Princess".

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These codes don't work unless "_M_SSE=0x301", for SSSE3, or "_M_SSE=0x401", for SSE4.1, is defined as a preprocessor definition.


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5300 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
nodchip
2010-04-09 03:02:12 +00:00
parent 73caf37bca
commit 6136c94de5
4 changed files with 171 additions and 5 deletions
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86
Source/Core/VideoCommon/Src/TextureDecoder.cpp
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@ -16,6 +16,13 @@
// http://code.google.com/p/dolphin-emu/
#include <cmath>
#if _M_SSE >= 0x401
#include <smmintrin.h>
#elif _M_SSE >= 0x301
#include <tmmintrin.h>
#endif
#include "Common.h"
//#include "VideoCommon.h" // to get debug logs
@ -359,14 +366,35 @@ inline void decodebytesC8_5A3_To_BGRA32(u32 *dst, const u8 *src, int tlutaddr)
}
}
#if _M_SSE >= 0x301
static const __m128i kMaskSwap16 = _mm_set_epi32(0x0E0F0C0DL, 0x0A0B0809L, 0x06070405L, 0x02030001L);
#endif
inline void decodebytesC8_To_Raw16(u16* dst, const u8* src, int tlutaddr)
{
u16* tlut = (u16*)(texMem + tlutaddr);
#if _M_SSE >= 0x301
// Make 8 16-bits unsigned integer values
const __m128i a = _mm_set_epi16(tlut[src[7]], tlut[src[6]], tlut[src[5]], tlut[src[4]], tlut[src[3]], tlut[src[2]], tlut[src[1]], tlut[src[0]]);
// Apply Common::swap16() to 16-bits unsigned integers at once
const __m128i b = _mm_shuffle_epi8(a, kMaskSwap16);
// Store values to dst without polluting the caches
_mm_stream_si128((__m128i*)dst, b);
#else
for (int x = 0; x < 8; x++)
{
u8 val = src[x];
*dst++ = Common::swap16(tlut[val]);
}
#endif
}
@ -869,7 +897,9 @@ PC_TexFormat TexDecoder_DirectDecode_real(u8 *dst, const u8 *src, int width, int
return PC_TEX_FMT_NONE;
}
#if _M_SSE >= 0x301
static const __m128i kMaskSwap32 = _mm_set_epi32(0x0C0D0E0FL, 0x08090A0BL, 0x04050607L, 0x00010203L);
#endif
//switch endianness, unswizzle
//TODO: to save memory, don't blindly convert everything to argb8888
@ -997,13 +1027,59 @@ PC_TexFormat TexDecoder_Decode_real(u8 *dst, const u8 *src, int width, int heigh
return PC_TEX_FMT_BGRA32;
case GX_TF_RGBA8: // speed critical
{
#if _M_SSE >= 0x301
for (int y = 0; y < height; y += 4) {
__m128i* p = (__m128i*)(src + y * width * 4);
for (int x = 0; x < width; x += 4) {
#if _M_SSE >= 0x401
// Load 64-bytes at once.
const __m128i a0 = _mm_stream_load_si128(p++);
const __m128i a1 = _mm_stream_load_si128(p++);
const __m128i a2 = _mm_stream_load_si128(p++);
const __m128i a3 = _mm_stream_load_si128(p++);
#else
const __m128i a0 = _mm_load_si128(p++);
const __m128i a1 = _mm_load_si128(p++);
const __m128i a2 = _mm_load_si128(p++);
const __m128i a3 = _mm_load_si128(p++);
#endif
// Shuffle 16-bit integeres by _mm_unpacklo_epi16()/_mm_unpackhi_epi16(),
// apply Common::swap32() by _mm_shuffle_epi8() and
// store them by _mm_stream_si128().
// See decodebytesARGB8_4() about the idea.
const __m128i b0 = _mm_unpacklo_epi16(a0, a2);
const __m128i c0 = _mm_shuffle_epi8(b0, kMaskSwap32);
_mm_stream_si128((__m128i*)((u32*)dst + (y + 0) * width + x), c0);
const __m128i b1 = _mm_unpackhi_epi16(a0, a2);
const __m128i c1 = _mm_shuffle_epi8(b1, kMaskSwap32);
_mm_stream_si128((__m128i*)((u32*)dst + (y + 1) * width + x), c1);
const __m128i b2 = _mm_unpacklo_epi16(a1, a3);
const __m128i c2 = _mm_shuffle_epi8(b2, kMaskSwap32);
_mm_stream_si128((__m128i*)((u32*)dst + (y + 2) * width + x), c2);
const __m128i b3 = _mm_unpackhi_epi16(a1, a3);
const __m128i c3 = _mm_shuffle_epi8(b3, kMaskSwap32);
_mm_stream_si128((__m128i*)((u32*)dst + (y + 3) * width + x), c3);
}
}
#else
for (int y = 0; y < height; y += 4)
for (int x = 0; x < width; x += 4)
{
for (int x = 0; x < width; x += 4)
{
for (int iy = 0; iy < 4; iy++)
decodebytesARGB8_4((u32*)dst + (y+iy)*width + x, (u16*)src + 4 * iy, (u16*)src + 4 * iy + 16);
decodebytesARGB8_4((u32*)dst + (y+iy)*width + x, (u16*)src + 4 * iy, (u16*)src + 4 * iy + 16);
src += 64;
}
}
#endif
}
return PC_TEX_FMT_BGRA32;
case GX_TF_CMPR: // speed critical