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accum_565 and accum_f16

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GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=5125
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Change-Id: I2e338ae14db0068d9a09e16a0678dd2ee9f97efd
Reviewed-on: https://skia-review.googlesource.com/5125
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Herb Derby <herb@google.com>
This commit is contained in:
Mike Klein 2016-11-22 13:22:48 -05:00 committed by Skia Commit-Bot
parent 8daef3ebdd
commit cb2c12b68f
2 changed files with 61 additions and 15 deletions
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4
src/image/SkImageShader.cpp
View File

@ -290,8 +290,8 @@ bool SkImageShader::onAppendStages(SkRasterPipeline* p, SkColorSpace* dst, SkFal
switch (info.colorType()) {
case kRGBA_8888_SkColorType:
case kBGRA_8888_SkColorType:
// case kRGB_565_SkColorType:
// case kRGBA_F16_SkColorType:
case kRGB_565_SkColorType:
case kRGBA_F16_SkColorType:
break;
default: return false;
}

72
src/opts/SkRasterPipeline_opts.h
View File

@ -765,17 +765,67 @@ STAGE(bottom_right, true) {
b = fx * fy;
};
STAGE(accum_565, true) {} // TODO
STAGE(accum_f16, true) {} // TODO
STAGE(accum_8888, true) {
template <typename T>
SI SkNi offset_and_ptr(T** ptr, const void* ctx, const SkNf& x, const SkNf& y) {
auto sc = (const SkImageShaderContext*)ctx;
SkNi ix = SkNx_cast<int>(r),
iy = SkNx_cast<int>(g);
SkNi ix = SkNx_cast<int>(x),
iy = SkNx_cast<int>(y);
SkNi offset = iy*sc->stride + ix;
auto p = (const uint32_t*)sc->pixels;
*ptr = (const T*)sc->pixels;
return offset;
}
STAGE(accum_565, true) {
const uint16_t* p;
SkNi offset = offset_and_ptr(&p, ctx, r, g);
uint16_t px[N];
for (size_t i = 0; i < N; i++) {
if (kIsTail && i >= tail) {
px[i] = 0;
continue;
}
px[i] = p[offset[i]];
}
SkNf R,G,B;
from_565(SkNh::Load(px), &R, &G, &B);
SkNf scale = b;
dr += scale * R;
dg += scale * G;
db += scale * B;
da += scale;
}
STAGE(accum_f16, true) {
const uint64_t* p;
SkNi offset = offset_and_ptr(&p, ctx, r, g);
uint16_t R[N], G[N], B[N], A[N];
for (size_t i = 0; i < N; i++) {
if (kIsTail && i >= tail) {
R[i] = G[i] = B[i] = A[i] = 0;
continue;
}
uint64_t rgba = p[offset[i]];
R[i] = rgba >> 0;
G[i] = rgba >> 16;
B[i] = rgba >> 32;
A[i] = rgba >> 48;
}
SkNf scale = b;
dr += scale * SkHalfToFloat_finite_ftz(SkNh::Load(R));
dg += scale * SkHalfToFloat_finite_ftz(SkNh::Load(G));
db += scale * SkHalfToFloat_finite_ftz(SkNh::Load(B));
da += scale * SkHalfToFloat_finite_ftz(SkNh::Load(A));
}
STAGE(accum_8888, true) {
const uint32_t* p;
SkNi offset = offset_and_ptr(&p, ctx, r, g);
uint8_t R[N], G[N], B[N], A[N];
for (size_t i = 0; i < N; i++) {
if (kIsTail && i >= tail) {
@ -797,13 +847,9 @@ STAGE(accum_8888, true) {
}
STAGE(accum_srgb, true) {
auto sc = (const SkImageShaderContext*)ctx;
const uint32_t* p;
SkNi offset = offset_and_ptr(&p, ctx, r, g);
SkNi ix = SkNx_cast<int>(r),
iy = SkNx_cast<int>(g);
SkNi offset = iy*sc->stride + ix;
auto p = (const uint32_t*)sc->pixels;
uint8_t R[N], G[N], B[N], A[N];
for (size_t i = 0; i < N; i++) {
if (kIsTail && i >= tail) {