diff options
Diffstat (limited to 'src/opts/SkPMFloat_neon.h')
-rw-r--r-- | src/opts/SkPMFloat_neon.h | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/src/opts/SkPMFloat_neon.h b/src/opts/SkPMFloat_neon.h deleted file mode 100644 index 12e857a50f..0000000000 --- a/src/opts/SkPMFloat_neon.h +++ /dev/null @@ -1,42 +0,0 @@ -#include "SkColorPriv.h" -#include "SkPMFloat.h" -#include <arm_neon.h> - -// For set(), we widen our 8 bit components (fix8) to 8-bit components in 16 bits (fix8_16), -// then widen those to 8-bit-in-32-bits (fix8_32), convert those to floats (scaled), -// then finally scale those down from [0.0f, 255.0f] to [0.0f, 1.0f] into fColor. - -// get() and clamped() do the opposite, working from [0.0f, 1.0f] floats to [0.0f, 255.0f], -// to 8-bit-in-32-bit, to 8-bit-in-16-bit, back down to 8-bit components. -// clamped() uses vqmovn to clamp while narrowing instead of just narrowing with vmovn. - -inline void SkPMFloat::set(SkPMColor c) { - SkPMColorAssert(c); - uint8x8_t fix8 = vdup_n_u32(c); - uint16x8_t fix8_16 = vmovl_u8(fix8); - uint32x4_t fix8_32 = vmovl_u16(vget_low_u16(fix8_16)); - float32x4_t scaled = vcvtq_f32_u32(fix8_32); - vst1q_f32(fColor, vmulq_f32(scaled, vdupq_n_f32(1.0f/255.0f))); - SkASSERT(this->isValid()); -} - -inline SkPMColor SkPMFloat::get() const { - SkASSERT(this->isValid()); - float32x4_t scaled = vmulq_f32(vld1q_f32(fColor), vdupq_n_f32(255.0f)); - uint32x4_t fix8_32 = vcvtq_u32_f32(scaled); - uint16x4_t fix8_16 = vmovn_u32(fix8_32); - uint8x8_t fix8 = vmovn_u16(vcombine_u16(fix8_16, vdup_n_u16(0))); - SkPMColor c = vget_lane_u32(fix8, 0); - SkPMColorAssert(c); - return c; -} - -inline SkPMColor SkPMFloat::clamped() const { - float32x4_t scaled = vmulq_f32(vld1q_f32(fColor), vdupq_n_f32(255.0f)); - uint32x4_t fix8_32 = vcvtq_u32_f32(scaled); - uint16x4_t fix8_16 = vqmovn_u32(fix8_32); - uint8x8_t fix8 = vqmovn_u16(vcombine_u16(fix8_16, vdup_n_u16(0))); - SkPMColor c = vget_lane_u32(fix8, 0); - SkPMColorAssert(c); - return c; -} |