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freetype2
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Code Issues 4 Releases Wiki Activity

Optimize SIMD even more

This commit is contained in:
Anurag Thakur 2023-10-05 18:06:37 +05:30
parent 66375b4408
commit 55c2525701
2 changed files with 27 additions and 14 deletions
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2
src/base/ftobjs.c
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@ -3154,7 +3154,7 @@ int conic_to2(FT_GlyphSlot* slot, FT_Vector *control, FT_Vector *from, FT_Vector
face->garray = (FT_GlyphSlot*)malloc(
face->driver->clazz->slot_object_size * face->num_glyphs );
//error = FT_Set_Char_Size( face, 0, 160 * 64, 300, 300 );
error = FT_Set_Pixel_Sizes( face, 0, 500);
error = FT_Set_Pixel_Sizes( face, 0, 100);
// int glyph_index = FT_Get_Char_Index( face, 'A' );
// error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_HINTING );

39
src/dense/ftdense.c
View File

@ -443,8 +443,7 @@ dense_render_glyph( dense_worker* worker, const FT_Bitmap* target, FT_PreLine pl
}
// point.x = 100;
// point.y = 100;
// dense_move_to(&point, worker);
// dense_move_to(&point, worker);
// Render into bitmap
const FT20D12* source = worker->m_a;
unsigned char* dest = target->buffer;
@ -460,6 +459,7 @@ __m128i offset = _mm_setzero_si128();
{
// load 4 floats from source
//printf("%d\n", source[i]);
__m128i x = _mm_load_si128( (__m128i*)&source[i] );
x = _mm_add_epi32( x, _mm_slli_si128( x, 4 ) );
@ -481,27 +481,40 @@ __m128i offset = _mm_setzero_si128();
// __m128i z = _mm_cvttps_epi32(y);
// z = _mm_packus_epi16(_mm_packs_epi32(z, nzero), nzero);
// *((int*)dest+i) = _mm_extract_epi16(z, 0);
// int yu = ;
// *((int*)dest+i) = yu;
// take absolute value
__m128i y = _mm_abs_epi32( x ); // fabs(x)
//__m128i y = _mm_abs_epi32( x ); // fabs(x)
// cap max value to 1
y = _mm_min_epi32( y, _mm_set1_epi32( 4094 ) );
//y = _mm_min_epi32( _mm_srli_epi32( y, 4 ), _mm_set1_epi32( 255 ) );
__m128i y = _mm_abs_epi32(_mm_srai_epi32( x , 4 ));
// reduce to 255
y = _mm_srli_epi32( y, 4 );
// y =
// shuffle
y = _mm_shuffle_epi8( y, mask );
// // shuffle
//y = _mm_shuffle_epi8( y, mask );
y = _mm_packus_epi16(_mm_packs_epi32(y, nzero), nzero);
//__m128i z = _mm_packus_epi16(_mm_packs_epi32(z, nzero), nzero);
_mm_store_ss( (float*)&dest[i], _mm_castsi128_ps(y) );
// int* ptr = (int*)&dest[i];
*(int*)&dest[i] = *(int*)&y;
//*(int*)&dest[i] = _mm_extract_epi32(y, 0);
//_mm_store_ss( (float*)&dest[i], _mm_castsi128_ps(y) );
// store the current prefix sum in offset
offset = _mm_castps_si128( _mm_shuffle_ps( _mm_castsi128_ps( x ),
_mm_castsi128_ps( x ),
_MM_SHUFFLE( 3, 3, 3, 3 ) ) );
// offset = _mm_castps_si128( _mm_shuffle_ps( _mm_castsi128_ps( x ),
// _mm_castsi128_ps( x ),
// _MM_SHUFFLE( 3, 3, 3, 3 ) ) );
offset = _mm_shuffle_epi32(x,_MM_SHUFFLE( 3, 3, 3, 3 ) );
//offset = _mm_set1_epi32(_mm_extract_epi32(x, 3));
}
@ -566,7 +579,7 @@ dense_raster_render( FT_Raster raster, const FT_Raster_Params* params )
worker->m_w = target_map->pitch;
worker->m_h = target_map->rows;
int size = worker->m_w * worker->m_h + 4;
int size = (worker->m_w * worker->m_h + 3) & ~3;
worker->m_a = malloc( sizeof( FT20D12 ) * size );
worker->m_a_size = size;