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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBlitMask.h"
#include "SkColorPriv.h"
#include "SkMask.h"
#include "Test.h"
static void test_opaque_dest(skiatest::Reporter* reporter, SkMask::Format format) {
const auto& row_proc = SkBlitMask::RowFactory(SkColorType::kN32_SkColorType, format,
static_cast<SkBlitMask::RowFlags>(0));
SkPMColor src[256],
dst[256];
uint8_t aa[256];
// Coverage -> [0..255]
for (size_t i = 0; i < 256; ++i) {
aa[i] = static_cast<uint8_t>(i);
}
// src -> [0..255]
for (size_t src_a = 0; src_a < 256; ++src_a) {
memset(src, src_a, sizeof(src));
// dst -> 0xff (always opaque)
memset(dst, 0xff, sizeof(dst));
row_proc(dst, aa, src, 256);
for (size_t i = 0; i < 256; ++i) {
REPORTER_ASSERT(reporter, SkGetPackedA32(dst[i]) == 0xff);
}
}
}
// Verifies that D32 dest remains opaque for any (src_alpha, coverage) combination.
DEF_TEST(BlitMask_OpaqueD32, reporter) {
test_opaque_dest(reporter, SkMask::Format::kA8_Format);
}
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