diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_rast_tri.c | 78 |
1 files changed, 77 insertions, 1 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_rast_tri.c b/src/gallium/drivers/llvmpipe/lp_rast_tri.c index 8d729c74818..5b3ad6e0a78 100644 --- a/src/gallium/drivers/llvmpipe/lp_rast_tri.c +++ b/src/gallium/drivers/llvmpipe/lp_rast_tri.c @@ -67,7 +67,7 @@ block_full_16(struct lp_rasterizer_task *task, block_full_4(task, tri, x + ix, y + iy); } - +#if !defined(PIPE_ARCH_SSE) static INLINE unsigned build_mask(int c, int dcdx, int dcdy) { @@ -98,6 +98,7 @@ build_mask(int c, int dcdx, int dcdy) return mask; } + static INLINE unsigned build_mask_linear(int c, int dcdx, int dcdy) { @@ -127,6 +128,81 @@ build_mask_linear(int c, int dcdx, int dcdy) return mask; } +#else +#include <emmintrin.h> +#include "util/u_sse.h" + + +static INLINE unsigned +build_mask_linear(int c, int dcdx, int dcdy) +{ + __m128i cstep0 = _mm_setr_epi32(c, c+dcdx, c+dcdx*2, c+dcdx*3); + __m128i xdcdy = _mm_set1_epi32(dcdy); + + /* Get values across the quad + */ + __m128i cstep1 = _mm_add_epi32(cstep0, xdcdy); + __m128i cstep2 = _mm_add_epi32(cstep1, xdcdy); + __m128i cstep3 = _mm_add_epi32(cstep2, xdcdy); + + /* pack pairs of results into epi16 + */ + __m128i cstep01 = _mm_packs_epi32(cstep0, cstep1); + __m128i cstep23 = _mm_packs_epi32(cstep2, cstep3); + + /* pack into epi8, preserving sign bits + */ + __m128i result = _mm_packs_epi16(cstep01, cstep23); + + /* extract sign bits to create mask + */ + return _mm_movemask_epi8(result); +} + +static INLINE unsigned +build_mask(int c, int dcdx, int dcdy) +{ + __m128i step = _mm_setr_epi32(0, dcdx, dcdy, dcdx + dcdy); + __m128i c0 = _mm_set1_epi32(c); + + /* Get values across the quad + */ + __m128i cstep0 = _mm_add_epi32(c0, step); + + /* Scale up step for moving between quads. This should probably + * be an arithmetic shift left, but there doesn't seem to be + * such a thing in SSE. It's unlikely that the step value is + * going to be large enough to overflow across 4 pixels, though + * if it is that big, rendering will be incorrect anyway. + */ + __m128i step4 = _mm_slli_epi32(step, 1); + + /* Get values for the remaining quads: + */ + __m128i cstep1 = _mm_add_epi32(cstep0, + _mm_shuffle_epi32(step4, _MM_SHUFFLE(1,1,1,1))); + __m128i cstep2 = _mm_add_epi32(cstep0, + _mm_shuffle_epi32(step4, _MM_SHUFFLE(2,2,2,2))); + __m128i cstep3 = _mm_add_epi32(cstep2, + _mm_shuffle_epi32(step4, _MM_SHUFFLE(1,1,1,1))); + + /* pack pairs of results into epi16 + */ + __m128i cstep01 = _mm_packs_epi32(cstep0, cstep1); + __m128i cstep23 = _mm_packs_epi32(cstep2, cstep3); + + /* pack into epi8, preserving sign bits + */ + __m128i result = _mm_packs_epi16(cstep01, cstep23); + + /* extract sign bits to create mask + */ + return _mm_movemask_epi8(result); +} + +#endif + + #define TAG(x) x##_1 |