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evas common: make logic same to c code version. 

As C version,
It increase alpha value by 1 to avoid loosing of the remains while it divides
values. Neon version does same technique to make same results.
This commit is contained in:
ChunEon Park 2015-04-07 23:06:43 +09:00
parent 51d60e649c
commit 1e33454772
1 changed files with 12 additions and 13 deletions
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25
src/lib/evas/common/evas_convert_color.c
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@ -32,7 +32,7 @@ evas_common_convert_argb_premul(DATA32 *data, unsigned int len)
DATA32 *de = data + len;
DATA32 nas = 0;
#ifdef BUILD_NEON
#ifdef BUILD_NEON
if (evas_common_cpu_has_feature(CPU_FEATURE_NEON))
{
uint8x8_t mask_0x00 = vdup_n_u8(0);
@ -42,31 +42,30 @@ evas_common_convert_argb_premul(DATA32 *data, unsigned int len)
while (data <= de - 8)
{
uint8x8x4_t rgba = vld4_u8(data);
cmp = vand_u8(vorr_u8(
vceq_u8(rgba.val[3], mask_0xff),
vceq_u8(rgba.val[3], mask_0x00)
), mask_0x01);
cmp = vand_u8(vorr_u8(vceq_u8(rgba.val[3], mask_0xff),
vceq_u8(rgba.val[3], mask_0x00)),
mask_0x01);
nas += vpaddl_u32(vpaddl_u16(vpaddl_u8(cmp)));
uint16x8x4_t lrgba;
lrgba.val[0] = vmovl_u8(rgba.val[0]);
lrgba.val[1] = vmovl_u8(rgba.val[1]);
lrgba.val[2] = vmovl_u8(rgba.val[2]);
lrgba.val[3] = vaddl_u8(rgba.val[3], mask_0x01);
rgba.val[0] = vshrn_n_u16(vmlal_u8(lrgba.val[0], rgba.val[0], rgba.val[3]), 8);
rgba.val[1] = vshrn_n_u16(vmlal_u8(lrgba.val[1], rgba.val[1], rgba.val[3]), 8);
rgba.val[2] = vshrn_n_u16(vmlal_u8(lrgba.val[2], rgba.val[2], rgba.val[3]), 8);
rgba.val[0] = vshrn_n_u16(vmlaq_u16(lrgba.val[0], lrgba.val[0],
lrgba.val[3]), 8);
rgba.val[1] = vshrn_n_u16(vmlaq_u16(lrgba.val[1], lrgba.val[1],
lrgba.val[3]), 8);
rgba.val[2] = vshrn_n_u16(vmlaq_u16(lrgba.val[2], lrgba.val[2],
lrgba.val[3]), 8);
vst4_u8(data, rgba);
data += 8;
}
}
#endif
#endif
while (data < de)
{