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More XFB speedup. It's all SSE now. 

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@886 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
hrydgard 2008-10-15 22:22:54 +00:00
parent 34a4fee1c5
commit db3a5e3822
1 changed files with 58 additions and 93 deletions
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149
Source/Core/VideoCommon/Src/XFBConvert.cpp
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@ -26,42 +26,13 @@
namespace { namespace {
u8 bound_table[3*256];
int y[256];
int v1[256];
int v2[256];
int u1[256];
int u2[256];
u8 *bound_lut = bound_table + 256;
inline int bound(int i)
{
return bound_lut[i];
}
inline void yuv2rgb(int y, int u, int v, int &r, int &g, int &b)
{
int gray = 76283*(y - 16);
b = bound((gray + 132252*(u - 128))>>16);
g = bound((gray - 53281 *(v - 128) - 25624*(u - 128))>>16);
r = bound((gray + 104595*(v - 128))>>16);
}
inline void rgb2yuv(int r, int g, int b, int &y, int &u, int &v)
{
y = (((16843 * r) + (33030 * g) + (6423 * b)) >> 16) + 16;
v = (((28770 * r) - (24117 * g) - (4653 * b)) >> 16) + 128;
u = ((-(9699 * r) - (19071 * g) + (28770 * b)) >> 16) + 128;
}
} // namespace
//const __m128i _bias1 = _mm_set_epi32(16 << 16, 128/2 << 16, 0, 128/2 << 16);
//const __m128i _bias2 = _mm_set_epi32(0, 128/2 << 16, 16 << 16, 128/2 << 16);
const __m128i _bias1 = _mm_set_epi32(128/2 << 16, 0, 128/2 << 16, 16 << 16); const __m128i _bias1 = _mm_set_epi32(128/2 << 16, 0, 128/2 << 16, 16 << 16);
const __m128i _bias2 = _mm_set_epi32(128/2 << 16, 16 << 16, 128/2 << 16, 0); const __m128i _bias2 = _mm_set_epi32(128/2 << 16, 16 << 16, 128/2 << 16, 0);
__m128i _y[256];
__m128i _u[256];
__m128i _v[256];
__m128i _r1[256]; __m128i _r1[256];
__m128i _r2[256]; __m128i _r2[256];
__m128i _g1[256]; __m128i _g1[256];
@ -69,19 +40,15 @@ __m128i _g2[256];
__m128i _b1[256]; __m128i _b1[256];
__m128i _b2[256]; __m128i _b2[256];
} // namespace
void InitXFBConvTables() void InitXFBConvTables()
{ {
for (int i = 0; i < 256; i++) for (int i = 0; i < 256; i++)
{ {
bound_table[i] = 0; _y[i] = _mm_set_epi32(0xFFFFFFF, 76283*(i - 16), 76283*(i - 16), 76283*(i - 16));
bound_table[256 + i] = i; _u[i] = _mm_set_epi32( 0, 0, -25624 * (i - 128), 132252 * (i - 128));
bound_table[512 + i] = 255; _v[i] = _mm_set_epi32( 0, 104595 * (i - 128), -53281 * (i - 128), 0);
y[i] = 76283*(i - 16);
u1[i] = 132252 * (i - 128);
u2[i] = -25624 * (i - 128);
v1[i] = -53281 * (i - 128);
v2[i] = 104595 * (i - 128);
_r1[i] = _mm_set_epi32( 28770 * i / 2, 0, -9699 * i / 2, 16843 * i); _r1[i] = _mm_set_epi32( 28770 * i / 2, 0, -9699 * i / 2, 16843 * i);
_g1[i] = _mm_set_epi32(-24117 * i / 2, 0, -19071 * i / 2, 33030 * i); _g1[i] = _mm_set_epi32(-24117 * i / 2, 0, -19071 * i / 2, 33030 * i);
@ -96,21 +63,27 @@ void InitXFBConvTables()
void ConvertFromXFB(u32 *dst, const u8* _pXFB, int width, int height) void ConvertFromXFB(u32 *dst, const u8* _pXFB, int width, int height)
{ {
const unsigned char *src = _pXFB; const unsigned char *src = _pXFB;
u32 numBlocks = (width * height) / 2; u32 numBlocks = ((width * height) / 2) / 2;
for (u32 i = 0; i < numBlocks; i++, src += 4) for (u32 i = 0; i < numBlocks; i++)
{ {
int Y1 = y[src[0]]; __m128i y1 = _y[src[0]];
int Y2 = y[src[2]]; __m128i u = _u[src[1]];
int U = src[1]; __m128i y2 = _y[src[2]];
int V = src[3]; __m128i v = _v[src[3]];
int b1 = bound((Y1 + u1[U]) >> 16); __m128i y1_2 = _y[src[4+0]];
int g1 = bound((Y1 + v1[V] + u2[U])>>16); __m128i u_2 = _u[src[4+1]];
int r1 = bound((Y1 + v2[V]) >> 16); __m128i y2_2 = _y[src[4+2]];
int b2 = bound((Y2 + u1[U]) >> 16); __m128i v_2 = _v[src[4+3]];
int g2 = bound((Y2 + v1[V] + u2[U]) >> 16);
int r2 = bound((Y2 + v2[V]) >> 16); __m128i c1 = _mm_srai_epi32(_mm_add_epi32(y1, _mm_add_epi32(u, v)), 16);
*dst++ = 0xFF000000 | (r1<<16) | (g1<<8) | (b1); __m128i c2 = _mm_srai_epi32(_mm_add_epi32(y2, _mm_add_epi32(u, v)), 16);
*dst++ = 0xFF000000 | (r2<<16) | (g2<<8) | (b2); __m128i c3 = _mm_srai_epi32(_mm_add_epi32(y1_2, _mm_add_epi32(u_2, v_2)), 16);
__m128i c4 = _mm_srai_epi32(_mm_add_epi32(y2_2, _mm_add_epi32(u_2, v_2)), 16);
__m128i four_dest = _mm_packus_epi16(_mm_packs_epi32(c1, c2), _mm_packs_epi32(c3, c4));
_mm_storeu_si128((__m128i *)dst, four_dest);
dst += 4;
src += 8;
} }
} }
@ -118,44 +91,36 @@ void ConvertToXFB(u32 *dst, const u8* _pEFB, int width, int height)
{ {
const unsigned char *src = _pEFB; const unsigned char *src = _pEFB;
u32 numBlocks = (width * height) / 2; u32 numBlocks = ((width * height) / 2) / 4;
#if 1 if (((size_t)dst & 0xF) != 0) {
PanicAlert("Weird - unaligned XFB");
}
__m128i zero = _mm_setzero_si128(); __m128i zero = _mm_setzero_si128();
for (int i = 0; i < numBlocks / 4; i++)
{
__m128i yuyv[4];
for (int j = 0; j < 4; j++) {
yuyv[j] = _mm_srai_epi32(
_mm_add_epi32(
_mm_add_epi32(
_mm_add_epi32(_r1[src[0]], _mm_add_epi32(_g1[src[1]], _b1[src[2]])), _bias1),
_mm_add_epi32(
_mm_add_epi32(_r2[src[4]], _mm_add_epi32(_g2[src[5]], _b2[src[6]])), _bias2)
), 16);
src += 8;
}
__m128i four_dest = _mm_packus_epi16(_mm_packs_epi32(yuyv[0], yuyv[1]), _mm_packs_epi32(yuyv[2], yuyv[3]));
_mm_storeu_si128((__m128i *)dst, four_dest);
dst += 4;
}
#else
for (int i = 0; i < numBlocks; i++) for (int i = 0; i < numBlocks; i++)
{ {
int y1 = (((16843 * src[0]) + (33030 * src[1]) + (6423 * src[2])) >> 16) + 16; __m128i yuyv0 = _mm_srai_epi32(
int u1 = ((-(9699 * src[0]) - (19071 * src[1]) + (28770 * src[2])) >> 16) + 128; _mm_add_epi32(
_mm_add_epi32(_mm_add_epi32(_r1[src[0]], _mm_add_epi32(_g1[src[1]], _b1[src[2]])), _bias1),
int v1 = (((28770 * src[0]) - (24117 * src[1]) - (4653 * src[2])) >> 16) + 128; _mm_add_epi32(_mm_add_epi32(_r2[src[4]], _mm_add_epi32(_g2[src[5]], _b2[src[6]])), _bias2)), 16);
src += 4; src += 8;
__m128i yuyv1 = _mm_srai_epi32(
int u2 = ((-(9699 * src[0]) - (19071 * src[1]) + (28770 * src[2])) >> 16) + 128; _mm_add_epi32(
int y2 = (((16843 * src[0]) + (33030 * src[1]) + (6423 * src[2])) >> 16) + 16; _mm_add_epi32(_mm_add_epi32(_r1[src[0]], _mm_add_epi32(_g1[src[1]], _b1[src[2]])), _bias1),
int v2 = (((28770 * src[0]) - (24117 * src[1]) - (4653 * src[2])) >> 16) + 128; _mm_add_epi32(_mm_add_epi32(_r2[src[4]], _mm_add_epi32(_g2[src[5]], _b2[src[6]])), _bias2)), 16);
src += 4; src += 8;
__m128i yuyv2 = _mm_srai_epi32(
int u = bound_lut[(u1 + u2) / 2]; _mm_add_epi32(
int v = bound_lut[(v1 + v2) / 2]; _mm_add_epi32(_mm_add_epi32(_r1[src[0]], _mm_add_epi32(_g1[src[1]], _b1[src[2]])), _bias1),
*dst++ = (v << 24) | (y2 << 16) | (u << 8) | (y1); _mm_add_epi32(_mm_add_epi32(_r2[src[4]], _mm_add_epi32(_g2[src[5]], _b2[src[6]])), _bias2)), 16);
src += 8;
__m128i yuyv3 = _mm_srai_epi32(
_mm_add_epi32(
_mm_add_epi32(_mm_add_epi32(_r1[src[0]], _mm_add_epi32(_g1[src[1]], _b1[src[2]])), _bias1),
_mm_add_epi32(_mm_add_epi32(_r2[src[4]], _mm_add_epi32(_g2[src[5]], _b2[src[6]])), _bias2)), 16);
src += 8;
__m128i four_dest = _mm_packus_epi16(_mm_packs_epi32(yuyv0, yuyv1), _mm_packs_epi32(yuyv2, yuyv3));
_mm_store_si128((__m128i *)dst, four_dest);
dst += 4;
} }
#endif
} }