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dsp/dec*: use WEBP_RESTRICT qualifier

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A minor improvement for arm targets with ndk r27/gcc-13 in H/VFilter8 (a
couple fewer moves w/aarch64) and much better vectorization of
DitherCombine8x8_C in most targets.

This only affects non-vector pointers; any vector pointers are left as a
follow up.

Change-Id: I03e73e6d6404261bb8408a9ae76a4b6ef142f8f0
This commit is contained in:
James Zern
2021-07-03 17:52:50 -07:00
parent 02eac8a741
commit 201894ef24
8 changed files with 121 additions and 82 deletions
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22
src/dsp/dec_mips32.c
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@ -133,26 +133,26 @@ static void HFilter16(uint8_t* p, int stride,
}
// 8-pixels wide variant, for chroma filtering
static void VFilter8(uint8_t* u, uint8_t* v, int stride,
int thresh, int ithresh, int hev_thresh) {
static void VFilter8(uint8_t* WEBP_RESTRICT u, uint8_t* WEBP_RESTRICT v,
int stride, int thresh, int ithresh, int hev_thresh) {
FilterLoop26(u, stride, 1, 8, thresh, ithresh, hev_thresh);
FilterLoop26(v, stride, 1, 8, thresh, ithresh, hev_thresh);
}
static void HFilter8(uint8_t* u, uint8_t* v, int stride,
int thresh, int ithresh, int hev_thresh) {
static void HFilter8(uint8_t* WEBP_RESTRICT u, uint8_t* WEBP_RESTRICT v,
int stride, int thresh, int ithresh, int hev_thresh) {
FilterLoop26(u, 1, stride, 8, thresh, ithresh, hev_thresh);
FilterLoop26(v, 1, stride, 8, thresh, ithresh, hev_thresh);
}
static void VFilter8i(uint8_t* u, uint8_t* v, int stride,
int thresh, int ithresh, int hev_thresh) {
static void VFilter8i(uint8_t* WEBP_RESTRICT u, uint8_t* WEBP_RESTRICT v,
int stride, int thresh, int ithresh, int hev_thresh) {
FilterLoop24(u + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh);
FilterLoop24(v + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh);
}
static void HFilter8i(uint8_t* u, uint8_t* v, int stride,
int thresh, int ithresh, int hev_thresh) {
static void HFilter8i(uint8_t* WEBP_RESTRICT u, uint8_t* WEBP_RESTRICT v,
int stride, int thresh, int ithresh, int hev_thresh) {
FilterLoop24(u + 4, 1, stride, 8, thresh, ithresh, hev_thresh);
FilterLoop24(v + 4, 1, stride, 8, thresh, ithresh, hev_thresh);
}
@ -215,7 +215,8 @@ static void SimpleHFilter16i(uint8_t* p, int stride, int thresh) {
}
}
static void TransformOne(const int16_t* in, uint8_t* dst) {
static void TransformOne(const int16_t* WEBP_RESTRICT in,
uint8_t* WEBP_RESTRICT dst) {
int temp0, temp1, temp2, temp3, temp4;
int temp5, temp6, temp7, temp8, temp9;
int temp10, temp11, temp12, temp13, temp14;
@ -532,7 +533,8 @@ static void TransformOne(const int16_t* in, uint8_t* dst) {
);
}
static void TransformTwo(const int16_t* in, uint8_t* dst, int do_two) {
static void TransformTwo(const int16_t* WEBP_RESTRICT in,
uint8_t* WEBP_RESTRICT dst, int do_two) {
TransformOne(in, dst);
if (do_two) {
TransformOne(in + 16, dst + 4);