cedric pushed a commit to branch master.
http://git.enlightenment.org/core/efl.git/commit/?id=a30481d27ba5e2dd5ad84cef9f6c55a9c89880a1
commit a30481d27ba5e2dd5ad84cef9f6c55a9c89880a1
Author: Yury Usishchev <y.usishc...@samsung.com>
Date: Wed Apr 15 17:22:54 2015 +0200
evas: implement _op_blend_c_dp_neon in NEON intrinsics.
Reviewers: raster, cedric
@feature
Reviewed By: cedric
Subscribers: jpeg, cedric
Projects: #efl
Differential Revision: https://phab.enlightenment.org/D2310
Signed-off-by: Cedric BAIL <ced...@osg.samsung.com>
---
.../common/evas_op_blend/op_blend_color_neon.c | 92 ++++++++++++++++++++--
1 file changed, 86 insertions(+), 6 deletions(-)
diff --git a/src/lib/evas/common/evas_op_blend/op_blend_color_neon.c
b/src/lib/evas/common/evas_op_blend/op_blend_color_neon.c
index 2bf14c1..7ba2ffd 100644
--- a/src/lib/evas/common/evas_op_blend/op_blend_color_neon.c
+++ b/src/lib/evas/common/evas_op_blend/op_blend_color_neon.c
@@ -1,15 +1,95 @@
+#ifdef BUILD_NEON
+#ifdef BUILD_NEON_INTRINSICS
+#include <arm_neon.h>
+#endif
+#endif
/* blend color --> dst */
#ifdef BUILD_NEON
static void
_op_blend_c_dp_neon(DATA32 *s EINA_UNUSED, DATA8 *m EINA_UNUSED, DATA32 c,
DATA32 *d, int l) {
#ifdef BUILD_NEON_INTRINSICS
- DATA32 *e, a = 256 - (c >> 24);
- UNROLL8_PLD_WHILE(d, l, e,
- {
- *d = c + MUL_256(a, *d);
- d++;
- });
+ uint16x8_t temp00_16x8;
+ uint16x8_t temp01_16x8;
+ uint16x8_t temp10_16x8;
+ uint16x8_t temp11_16x8;
+ uint32x4_t temp0_32x4;
+ uint32x4_t temp1_32x4;
+ uint32x4_t c_32x4;
+ uint32x4_t d0_32x4;
+ uint32x4_t d1_32x4;
+ uint8x16_t d0_8x16;
+ uint8x16_t d1_8x16;
+ uint8x16_t temp0_8x16;
+ uint8x16_t temp1_8x16;
+ uint8x8_t alpha_8x8;
+ uint8x8_t d00_8x8;
+ uint8x8_t d01_8x8;
+ uint8x8_t d10_8x8;
+ uint8x8_t d11_8x8;
+ uint8x8_t temp00_8x8;
+ uint8x8_t temp01_8x8;
+ uint8x8_t temp10_8x8;
+ uint8x8_t temp11_8x8;
+
+ // alpha can only be 0 if color is 0x0. In that case we can just return.
+ // Otherwise we can assume alpha != 0. This allows more optimization in
+ // NEON code.
+
+ if(!c)
+ return;
+
+ DATA32 *start = d;
+ int size = l;
+ DATA32 *end = start + (size & ~7);
+
+ unsigned char alpha;
+ alpha = ~(c >> 24) + 1; // 256 - (c >> 24)
+ alpha_8x8 = vdup_n_u8(alpha);
+
+ c_32x4 = vdupq_n_u32(c);
+
+ while (start < end)
+ {
+ d0_32x4 = vld1q_u32(start);
+ d1_32x4 = vld1q_u32(start+4);
+ d0_8x16 = vreinterpretq_u8_u32(d0_32x4);
+ d1_8x16 = vreinterpretq_u8_u32(d1_32x4);
+
+ d00_8x8 = vget_low_u8(d0_8x16);
+ d01_8x8 = vget_high_u8(d0_8x16);
+ d10_8x8 = vget_low_u8(d1_8x16);
+ d11_8x8 = vget_high_u8(d1_8x16);
+
+ temp00_16x8 = vmull_u8(alpha_8x8, d00_8x8);
+ temp01_16x8 = vmull_u8(alpha_8x8, d01_8x8);
+ temp10_16x8 = vmull_u8(alpha_8x8, d10_8x8);
+ temp11_16x8 = vmull_u8(alpha_8x8, d11_8x8);
+
+ temp00_8x8 = vshrn_n_u16(temp00_16x8,8);
+ temp01_8x8 = vshrn_n_u16(temp01_16x8,8);
+ temp10_8x8 = vshrn_n_u16(temp10_16x8,8);
+ temp11_8x8 = vshrn_n_u16(temp11_16x8,8);
+
+ temp0_8x16 = vcombine_u8(temp00_8x8, temp01_8x8);
+ temp1_8x16 = vcombine_u8(temp10_8x8, temp11_8x8);
+
+ temp0_32x4 = vreinterpretq_u32_u8(temp0_8x16);
+ temp1_32x4 = vreinterpretq_u32_u8(temp1_8x16);
+
+ d0_32x4 = vaddq_u32(c_32x4, temp0_32x4);
+ d1_32x4 = vaddq_u32(c_32x4, temp1_32x4);
+
+ vst1q_u32(start, d0_32x4);
+ vst1q_u32(start+4, d1_32x4);
+ start+=8;
+ }
+ end += (size & 7);
+ while (start < end)
+ {
+ *start = c + MUL_256(alpha, *start);
+ start++;
+ }
#else
DATA32 *e, *tmp = 0;
#define AP "B_C_DP"
--
