| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "Test.h" |
| |
| #include "SkBitmap.h" |
| #include "SkImageInfo.h" |
| #include "SkShader.h" |
| #include "SkRecord.h" |
| #include "SkRecords.h" |
| |
| // Sums the area of any DrawRect command it sees. |
| class AreaSummer { |
| public: |
| AreaSummer() : fArea(0) {} |
| |
| template <typename T> void operator()(const T&) { } |
| |
| void operator()(const SkRecords::DrawRect& draw) { |
| fArea += (int)(draw.rect.width() * draw.rect.height()); |
| } |
| |
| int area() const { return fArea; } |
| |
| void apply(const SkRecord& record) { |
| for (int i = 0; i < record.count(); i++) { |
| record.visit<void>(i, *this); |
| } |
| } |
| |
| private: |
| int fArea; |
| }; |
| |
| // Scales out the bottom-right corner of any DrawRect command it sees by 2x. |
| struct Stretch { |
| template <typename T> void operator()(T*) {} |
| void operator()(SkRecords::DrawRect* draw) { |
| draw->rect.fRight *= 2; |
| draw->rect.fBottom *= 2; |
| } |
| |
| void apply(SkRecord* record) { |
| for (int i = 0; i < record->count(); i++) { |
| record->mutate<void>(i, *this); |
| } |
| } |
| }; |
| |
| #define APPEND(record, type, ...) new (record.append<type>()) type(__VA_ARGS__) |
| |
| // Basic tests for the low-level SkRecord code. |
| DEF_TEST(Record, r) { |
| SkRecord record; |
| |
| // Add a simple DrawRect command. |
| SkRect rect = SkRect::MakeWH(10, 10); |
| SkPaint paint; |
| APPEND(record, SkRecords::DrawRect, paint, rect); |
| |
| // Its area should be 100. |
| AreaSummer summer; |
| summer.apply(record); |
| REPORTER_ASSERT(r, summer.area() == 100); |
| |
| // Scale 2x. |
| Stretch stretch; |
| stretch.apply(&record); |
| |
| // Now its area should be 100 + 400. |
| summer.apply(record); |
| REPORTER_ASSERT(r, summer.area() == 500); |
| } |
| |
| #undef APPEND |
| |
| template <typename T> |
| static bool is_aligned(const T* p) { |
| return (((uintptr_t)p) & (sizeof(T) - 1)) == 0; |
| } |
| |
| DEF_TEST(Record_Alignment, r) { |
| SkRecord record; |
| REPORTER_ASSERT(r, is_aligned(record.alloc<uint8_t>())); |
| REPORTER_ASSERT(r, is_aligned(record.alloc<uint16_t>())); |
| REPORTER_ASSERT(r, is_aligned(record.alloc<uint32_t>())); |
| REPORTER_ASSERT(r, is_aligned(record.alloc<void*>())); |
| |
| // It's not clear if we care that 8-byte values are aligned on 32-bit machines. |
| if (sizeof(void*) == 8) { |
| REPORTER_ASSERT(r, is_aligned(record.alloc<double>())); |
| REPORTER_ASSERT(r, is_aligned(record.alloc<uint64_t>())); |
| } |
| } |
| |