| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkColorFilter.h" |
| #include "SkHalf.h" |
| #include "SkNx.h" |
| #include "SkPaint.h" |
| #include "SkPixmap.h" |
| #include "SkPM4f.h" |
| #include "SkPM4fPriv.h" |
| #include "SkSpanProcs.h" |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| static void load_l32(const SkPixmap& src, int x, int y, SkPM4f span[], int count) { |
| SkASSERT(count > 0); |
| const uint32_t* addr = src.addr32(x, y); |
| SkASSERT(src.addr32(x + count - 1, y)); |
| |
| for (int i = 0; i < count; ++i) { |
| swizzle_rb_if_bgra(Sk4f_fromL32(addr[i])).store(span[i].fVec); |
| } |
| } |
| |
| static void load_s32(const SkPixmap& src, int x, int y, SkPM4f span[], int count) { |
| SkASSERT(count > 0); |
| const uint32_t* addr = src.addr32(x, y); |
| SkASSERT(src.addr32(x + count - 1, y)); |
| |
| for (int i = 0; i < count; ++i) { |
| swizzle_rb_if_bgra(Sk4f_fromS32(addr[i])).store(span[i].fVec); |
| } |
| } |
| |
| static void load_f16(const SkPixmap& src, int x, int y, SkPM4f span[], int count) { |
| SkASSERT(count > 0); |
| const uint64_t* addr = src.addr64(x, y); |
| SkASSERT(src.addr64(x + count - 1, y)); |
| |
| for (int i = 0; i < count; ++i) { |
| SkHalfToFloat_finite_ftz(addr[i]).store(span[i].fVec); |
| } |
| } |
| |
| SkLoadSpanProc SkLoadSpanProc_Choose(const SkImageInfo& info) { |
| switch (info.colorType()) { |
| case kN32_SkColorType: |
| return info.gammaCloseToSRGB() ? load_s32 : load_l32; |
| case kRGBA_F16_SkColorType: |
| return load_f16; |
| default: |
| return nullptr; |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| static void noop_filterspan(const SkPaint& paint, SkPM4f[], int) { |
| SkASSERT(!paint.getColorFilter()); |
| SkASSERT(0xFF == paint.getAlpha()); |
| } |
| |
| static void alpha_filterspan(const SkPaint& paint, SkPM4f span[], int count) { |
| SkASSERT(!paint.getColorFilter()); |
| SkASSERT(0xFF != paint.getAlpha()); |
| const Sk4f scale = Sk4f(paint.getAlpha() * (1.0f/255)); |
| for (int i = 0; i < count; ++i) { |
| (Sk4f::Load(span[i].fVec) * scale).store(span[i].fVec); |
| } |
| } |
| |
| static void colorfilter_filterspan(const SkPaint& paint, SkPM4f span[], int count) { |
| SkASSERT(paint.getColorFilter()); |
| SkASSERT(0xFF == paint.getAlpha()); |
| paint.getColorFilter()->filterSpan4f(span, count, span); |
| } |
| |
| static void colorfilter_alpha_filterspan(const SkPaint& paint, SkPM4f span[], int count) { |
| SkASSERT(paint.getColorFilter()); |
| SkASSERT(0xFF != paint.getAlpha()); |
| alpha_filterspan(paint, span, count); |
| paint.getColorFilter()->filterSpan4f(span, count, span); |
| } |
| |
| SkFilterSpanProc SkFilterSpanProc_Choose(const SkPaint& paint) { |
| if (paint.getColorFilter()) { |
| return 0xFF == paint.getAlpha() ? colorfilter_filterspan : colorfilter_alpha_filterspan; |
| } else { |
| return 0xFF == paint.getAlpha() ? noop_filterspan : alpha_filterspan; |
| } |
| } |