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- /*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "src/effects/SkPackBits.h"
- #include "tests/Test.h"
- #include "include/utils/SkRandom.h"
- static SkRandom gRand;
- static const uint8_t gTest80[] = { 0, 0, 1, 1 };
- static const uint8_t gTest81[] = { 1, 2, 3, 4, 5, 6 };
- static const uint8_t gTest82[] = { 0, 0, 0, 1, 2, 3, 3, 3 };
- static const uint8_t gTest83[] = { 0, 0, 0, 0, 0, 0, 1, 2, 3, 3, 3, 0, 0, 1 };
- static const uint8_t gTest84[] = { 1, 0, 3, 0, 0, 0, 2, 1, 1, 2 };
- static void rand_fill(uint8_t buffer[], int count) {
- for (int i = 0; i < count; i++)
- buffer[i] = (uint8_t)((gRand.nextU() >> 8) & 0x3);
- }
- static void test_pack8(skiatest::Reporter* reporter) {
- static const struct {
- const uint8_t* fSrc;
- int fCount;
- } gTests[] = {
- { gTest80, SK_ARRAY_COUNT(gTest80) },
- { gTest81, SK_ARRAY_COUNT(gTest81) },
- { gTest82, SK_ARRAY_COUNT(gTest82) },
- { gTest83, SK_ARRAY_COUNT(gTest83) },
- { gTest84, SK_ARRAY_COUNT(gTest84) }
- };
- for (size_t i = 4; i < SK_ARRAY_COUNT(gTests); i++) {
- uint8_t dst[100];
- size_t maxSize = SkPackBits::ComputeMaxSize8(gTests[i].fCount);
- size_t dstSize = SkPackBits::Pack8(gTests[i].fSrc,
- gTests[i].fCount, dst, maxSize - 1);
- REPORTER_ASSERT(reporter, dstSize == 0);
- dstSize = SkPackBits::Pack8(gTests[i].fSrc,
- gTests[i].fCount, dst, sizeof(dst));
- REPORTER_ASSERT(reporter, dstSize <= maxSize);
- uint8_t src[100];
- int srcCount = SkPackBits::Unpack8(dst, dstSize, src, gTests[i].fCount - 1);
- REPORTER_ASSERT(reporter, srcCount == 0);
- srcCount = SkPackBits::Unpack8(dst, dstSize, src, sizeof(src));
- bool match = gTests[i].fCount == srcCount &&
- memcmp(gTests[i].fSrc, src,
- gTests[i].fCount * sizeof(uint8_t)) == 0;
- REPORTER_ASSERT(reporter, match);
- }
- for (uint32_t size = 1; size <= 512; size += 1) {
- for (int n = 100; n; n--) {
- uint8_t src[600], src2[600];
- uint8_t dst[600];
- rand_fill(src, size);
- size_t dstSize = SkPackBits::Pack8(src, size, dst, sizeof(dst));
- size_t maxSize = SkPackBits::ComputeMaxSize8(size);
- REPORTER_ASSERT(reporter, maxSize >= dstSize);
- size_t srcCount = SkPackBits::Unpack8(dst, dstSize, src2, size);
- REPORTER_ASSERT(reporter, size == srcCount);
- bool match = memcmp(src, src2, size * sizeof(uint8_t)) == 0;
- REPORTER_ASSERT(reporter, match);
- }
- }
- }
- DEF_TEST(PackBits, reporter) {
- test_pack8(reporter);
- }
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