diff options
Diffstat (limited to 'Source/Core/VideoCommon/Src/TextureDecoder.cpp')
| -rw-r--r-- | Source/Core/VideoCommon/Src/TextureDecoder.cpp | 86 |
1 files changed, 81 insertions, 5 deletions
diff --git a/Source/Core/VideoCommon/Src/TextureDecoder.cpp b/Source/Core/VideoCommon/Src/TextureDecoder.cpp index ecd78ba16b..7cc0c05247 100644 --- a/Source/Core/VideoCommon/Src/TextureDecoder.cpp +++ b/Source/Core/VideoCommon/Src/TextureDecoder.cpp @@ -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 |