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SkRasterPipeline_opts: split next() into next_body() and next_tail().

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This may work around an Chrome/MSVC/PGO compiler crasher.
Even if not, it's harmless for performance, and arguably more readable.

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3789

Change-Id: I0bf23f65d7832b9f43e275f85e7985fcd6b13b9f
Reviewed-on: https://skia-review.googlesource.com/3789
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Mike Klein <mtklein@chromium.org>
This commit is contained in:
Mike Klein 2016-10-20 18:05:23 -04:00 committed by Skia Commit-Bot
parent 7cfd46aebd
commit 49372e69d3
1 changed files with 18 additions and 11 deletions
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29
src/opts/SkRasterPipeline_opts.h
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@ -33,12 +33,19 @@ using Tail = void(SK_VECTORCALL *)(SkRasterPipeline::Stage*, size_t, size_t,
#define SI static inline
template <typename Fn, typename... Args>
SI void next(SkRasterPipeline::Stage* st, Args&&... args) {
// Stages are logically a pipeline, and physically are contiguous in an array.
// To get to the next stage, we just increment our pointer to the next array element.
((Fn)st->fNext)(st+1, std::forward<Args>(args)...);
// Stages are logically a pipeline, and physically are contiguous in an array.
// To get to the next stage, we just increment our pointer to the next array element.
SI void SK_VECTORCALL next_body(SkRasterPipeline::Stage* st, size_t x,
SkNf r, SkNf g, SkNf b, SkNf a,
SkNf dr, SkNf dg, SkNf db, SkNf da) {
((Body)st->fNext)(st+1, x, r,g,b,a, dr,dg,db,da);
}
SI void SK_VECTORCALL next_tail(SkRasterPipeline::Stage* st, size_t x, size_t tail,
SkNf r, SkNf g, SkNf b, SkNf a,
SkNf dr, SkNf dg, SkNf db, SkNf da) {
((Tail)st->fNext)(st+1, x,tail, r,g,b,a, dr,dg,db,da);
}
#define STAGE(name, kCallNext) \
template <bool kIsTail> \
@ -50,7 +57,7 @@ SI void next(SkRasterPipeline::Stage* st, Args&&... args) {
SkNf dr, SkNf dg, SkNf db, SkNf da) { \
name##_kernel<false>(st->fCtx, x,0, r,g,b,a, dr,dg,db,da); \
if (kCallNext) { \
next<Body>(st, x, r,g,b,a, dr,dg,db,da); \
next_body(st, x, r,g,b,a, dr,dg,db,da); \
} \
} \
SI void SK_VECTORCALL name##_tail(SkRasterPipeline::Stage* st, size_t x, size_t tail, \
@ -58,7 +65,7 @@ SI void next(SkRasterPipeline::Stage* st, Args&&... args) {
SkNf dr, SkNf dg, SkNf db, SkNf da) { \
name##_kernel<true>(st->fCtx, x,tail, r,g,b,a, dr,dg,db,da); \
if (kCallNext) { \
next<Tail>(st, x,tail, r,g,b,a, dr,dg,db,da); \
next_tail(st, x,tail, r,g,b,a, dr,dg,db,da); \
} \
} \
template <bool kIsTail> \
@ -78,7 +85,7 @@ SI void next(SkRasterPipeline::Stage* st, Args&&... args) {
g = name##_kernel(g,a,dg,da); \
b = name##_kernel(b,a,db,da); \
a = name##_kernel(a,a,da,da); \
next<Body>(st, x, r,g,b,a, dr,dg,db,da); \
next_body(st, x, r,g,b,a, dr,dg,db,da); \
} \
SI void SK_VECTORCALL name##_tail(SkRasterPipeline::Stage* st, size_t x, size_t tail, \
SkNf r, SkNf g, SkNf b, SkNf a, \
@ -87,7 +94,7 @@ SI void next(SkRasterPipeline::Stage* st, Args&&... args) {
g = name##_kernel(g,a,dg,da); \
b = name##_kernel(b,a,db,da); \
a = name##_kernel(a,a,da,da); \
next<Tail>(st, x,tail, r,g,b,a, dr,dg,db,da); \
next_tail(st, x,tail, r,g,b,a, dr,dg,db,da); \
} \
static SK_ALWAYS_INLINE SkNf name##_kernel(const SkNf& s, const SkNf& sa, \
const SkNf& d, const SkNf& da)
@ -103,7 +110,7 @@ SI void next(SkRasterPipeline::Stage* st, Args&&... args) {
g = name##_kernel(g,a,dg,da); \
b = name##_kernel(b,a,db,da); \
a = a + (da * (1.0f-a)); \
next<Body>(st, x, r,g,b,a, dr,dg,db,da); \
next_body(st, x, r,g,b,a, dr,dg,db,da); \
} \
SI void SK_VECTORCALL name##_tail(SkRasterPipeline::Stage* st, size_t x, size_t tail, \
SkNf r, SkNf g, SkNf b, SkNf a, \
@ -112,7 +119,7 @@ SI void next(SkRasterPipeline::Stage* st, Args&&... args) {
g = name##_kernel(g,a,dg,da); \
b = name##_kernel(b,a,db,da); \
a = a + (da * (1.0f-a)); \
next<Tail>(st, x,tail, r,g,b,a, dr,dg,db,da); \
next_tail(st, x,tail, r,g,b,a, dr,dg,db,da); \
} \
static SK_ALWAYS_INLINE SkNf name##_kernel(const SkNf& s, const SkNf& sa, \
const SkNf& d, const SkNf& da)