Revert of Add specialized sRGB blitter for SkOpts

tests/SkBlend_optsTest.cpp

-/*
- * 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 <string>
-#include <tuple>
-#include <vector>
-#include "Resources.h"
-#include "SkCpu.h"
-#include "SkImage.h"
-#include "SkImage_Base.h"
-#include "SkOpts.h"
-#include "SkNx.h"
-#include "Test.h"
-#include "../include/core/SkImageInfo.h"
-
-typedef void (*Blender)(uint32_t* dst, const uint32_t* const srcStart, int ndst, const int nsrc);
-
-namespace sk_default {
-extern void brute_force_srcover_srgb_srgb(
-    uint32_t* dst, const uint32_t* const srcStart, int ndst, const int nsrc);
-}
-
-namespace sk_default {
-extern void trivial_srcover_srgb_srgb(
-    uint32_t* dst, const uint32_t* const srcStart, int ndst, const int nsrc);
-
-extern void best_non_simd_srcover_srgb_srgb(
-    uint32_t* dst, const uint32_t* const srcStart, int ndst, const int nsrc);
-
-extern void srcover_srgb_srgb(
-    uint32_t* dst, const uint32_t* const srcStart, int ndst, const int nsrc);
-}
-
-#if defined(SK_CPU_X86) && !defined(SK_BUILD_FOR_IOS)
-namespace sk_sse41 {
-extern void srcover_srgb_srgb(
-    uint32_t* dst, const uint32_t* const srcStart, int ndst, const int nsrc);
-}
-#endif
-
-static SkString missmatch_message(std::string resourceName, std::string name, int x, int y,
-                                  uint32_t src, uint32_t good, uint32_t bad) {
-    return SkStringPrintf(
-        "%s - %s missmatch at %d, %d src: %08x good: %08x bad: %08x",
-        resourceName.c_str(), name.c_str(), x, y, src, good, bad);
-}
-
-using Spec = std::tuple<Blender, std::string>;
-
-static void test_blender(
-    Spec spec,
-    std::string resourceName,
-    skiatest::Reporter* reporter)
-{
-    Blender blender;
-    std::string name;
-    std::tie(blender, name) = spec;
-
-    std::string fileName = resourceName + ".png";
-    sk_sp<SkImage> image = GetResourceAsImage(fileName.c_str());
-    SkASSERT(image != nullptr);
-    if (image == nullptr) {
-        SkFAIL("image is NULL");
-    }
-    SkBitmap bm;
-    if (!as_IB(image)->getROPixels(&bm)) {
-        SkFAIL("Could not read resource");
-    }
-
-    SkPixmap pixmap;
-    bm.peekPixels(&pixmap);
-    SkASSERTF(pixmap.colorType() == kN32_SkColorType, "colorType: %d", pixmap.colorType());
-    SkASSERT(pixmap.alphaType() != kUnpremul_SkAlphaType);
-    const uint32_t* src = pixmap.addr32();
-    const int width = pixmap.rowBytesAsPixels();
-    SkASSERT(width > 0);
-    SkASSERT(width < 4000);
-    SkAutoTArray<uint32_t> correctDst(width);
-    SkAutoTArray<uint32_t> testDst(width);
-
-    for (int y = 0; y < pixmap.height(); y++) {
-        memset(correctDst.get(), 0, width * sizeof(uint32_t));
-        memset(testDst.get(), 0, width * sizeof(uint32_t));
-        sk_default::brute_force_srcover_srgb_srgb(correctDst.get(), src, width, width);
-        blender(testDst.get(), src, width, width);
-        for (int x = 0; x < width; x++) {
-            REPORTER_ASSERT_MESSAGE(
-                reporter, correctDst[x] == testDst[x],
-                missmatch_message(resourceName, name, x, y, src[x], correctDst[x], testDst[x]));
-            if (correctDst[x] != testDst[x]) break;
-        }
-        src += width;
-    }
-}
-
-DEF_TEST(SkBlend_optsCheck, reporter) {
-    std::vector<Spec> specs = {
-        Spec{sk_default::trivial_srcover_srgb_srgb,       "trivial"},
-        Spec{sk_default::best_non_simd_srcover_srgb_srgb, "best_non_simd"},
-        Spec{sk_default::srcover_srgb_srgb,               "default"},
-    };
-    #if defined(SK_CPU_X86) && !defined(SK_BUILD_FOR_IOS)
-    if (SkCpu::Supports(SkCpu::SSE41)) {
-        specs.push_back(Spec{sk_sse41::srcover_srgb_srgb, "sse41", });
-    }
-    #endif
-
-    std::vector<std::string> testResources = {
-        "yellow_rose", "baby_tux", "plane", "mandrill_512", "iconstrip"
-    };
-
-    for (auto& spec : specs) {
-        for (auto& resourceName : testResources) {
-            test_blender(spec, resourceName, reporter);
-        }
-    }
-}
-
-
-
-DEF_TEST(SkBlend_optsSqrtCheck, reporter) {
-    for (int c = 0; c < 256; c++) {
-        Sk4f i{(float)c};
-        Sk4f ii = i * i;
-        Sk4f s = ii.sqrt() + 0.5f;
-        Sk4f sf = s.floor();
-        REPORTER_ASSERT_MESSAGE(
-            reporter, i[0] == sf[0], SkStringPrintf("i: %f, s: %f", i[0], sf[0]));
-    }
-}