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Added SSSE3/SSE4.1 code for speed up. The code does not work in this revision because cpu_info is not initialized properly. I will fix the issue in another commit.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5119 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
nodchip
2010-02-24 09:56:41 +00:00
parent dc9d533d4f
commit 47fb73b71a
4 changed files with 189 additions and 30 deletions
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124
Source/Core/VideoCommon/Src/TextureDecoder.cpp
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@ -16,6 +16,7 @@
// http://code.google.com/p/dolphin-emu/
#include <cmath>
#include <nmmintrin.h>
#include "Common.h"
//#include "VideoCommon.h" // to get debug logs
@ -396,7 +397,11 @@ inline void decodebytesC8_5A3_To_BGRA32(u32 *dst, const u8 *src, int tlutaddr)
}
}
inline void decodebytesC8_To_Raw16(u16* dst, const u8* src, int tlutaddr)
template<bool SSSE3>
inline void decodebytesC8_To_Raw16(u16* dst, const u8* src, int tlutaddr);
template<>
inline void decodebytesC8_To_Raw16<false>(u16* dst, const u8* src, int tlutaddr)
{
u16* tlut = (u16*)(texMem + tlutaddr);
for (int x = 0; x < 8; x++)
@ -406,6 +411,29 @@ inline void decodebytesC8_To_Raw16(u16* dst, const u8* src, int tlutaddr)
}
}
static const __m128i kMaskSwap16 = _mm_set_epi32(0x0E0F0C0DL, 0x0A0B0809L, 0x06070405L, 0x02030001L);
template<>
inline void decodebytesC8_To_Raw16<true>(u16* dst, const u8* src, int tlutaddr)
{
u16* tlut = (u16*)(texMem + tlutaddr);
// Make 8 16-bits unsigned integer values
__m128i a;
a = _mm_insert_epi16(a, tlut[src[0]], 0);
a = _mm_insert_epi16(a, tlut[src[1]], 1);
a = _mm_insert_epi16(a, tlut[src[2]], 2);
a = _mm_insert_epi16(a, tlut[src[3]], 3);
a = _mm_insert_epi16(a, tlut[src[4]], 4);
a = _mm_insert_epi16(a, tlut[src[5]], 5);
a = _mm_insert_epi16(a, tlut[src[6]], 6);
a = _mm_insert_epi16(a, tlut[src[7]], 7);
// 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);
}
inline void decodebytesC14X2_5A3_To_BGRA32(u32 *dst, const u16 *src, int tlutaddr)
{
@ -912,6 +940,7 @@ PC_TexFormat TexDecoder_DirectDecode_real(u8 *dst, const u8 *src, int width, int
//TODO: to save memory, don't blindly convert everything to argb8888
//also ARGB order needs to be swapped later, to accommodate modern hardware better
//need to add DXT support too
static const __m128i kMaskSwap32 = _mm_set_epi32(0x0C0D0E0FL, 0x08090A0BL, 0x04050607L, 0x00010203L);
PC_TexFormat TexDecoder_Decode_real(u8 *dst, const u8 *src, int width, int height, int texformat, int tlutaddr, int tlutfmt)
{
switch (texformat)
@ -965,10 +994,18 @@ PC_TexFormat TexDecoder_Decode_real(u8 *dst, const u8 *src, int width, int heigh
}
else
{
for (int y = 0; y < height; y += 4)
for (int x = 0; x < width; x += 8)
for (int iy = 0; iy < 4; iy++, src += 8)
decodebytesC8_To_Raw16((u16*)dst + (y + iy) * width + x, src, tlutaddr);
if (cpu_info.bSSSE3) {
for (int y = 0; y < height; y += 4)
for (int x = 0; x < width; x += 8)
for (int iy = 0; iy < 4; iy++, src += 8)
decodebytesC8_To_Raw16<true>((u16*)dst + (y + iy) * width + x, src, tlutaddr);
} else {
for (int y = 0; y < height; y += 4)
for (int x = 0; x < width; x += 8)
for (int iy = 0; iy < 4; iy++, src += 8)
decodebytesC8_To_Raw16<false>((u16*)dst + (y + iy) * width + x, src, tlutaddr);
}
}
return GetPCFormatFromTLUTFormat(tlutfmt);
case GX_TF_IA4:
@ -1034,13 +1071,76 @@ 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
{
for (int y = 0; y < height; y += 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);
src += 64;
}
if (cpu_info.bSSE4_1) {
for (int y = 0; y < height; y += 4) {
__m128i* p = (__m128i*)(src + y * width * 4);
for (int x = 0; x < width; x += 4) {
// 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++);
// 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 if (cpu_info.bSSSE3) {
// SSSE3 can not use _mm_stream_load_si128().
// Use _mm_load_si128() instead of _mm_load_si128().
for (int y = 0; y < height; y += 4) {
__m128i* p = (__m128i*)(src + y * width * 4);
for (int x = 0; x < width; x += 4) {
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++);
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 iy = 0; iy < 4; iy++)
decodebytesARGB8_4((u32*)dst + (y+iy)*width + x, (u16*)src + 4 * iy, (u16*)src + 4 * iy + 16);
src += 64;
}
}
}
return PC_TEX_FMT_BGRA32;
case GX_TF_CMPR: // speed critical