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/*
* 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 "SkTypes.h"
#include "Test.h"
#if SK_SUPPORT_GPU
#include "GrContext.h"
#endif
#include "SkImage.h"
#include "SkSurface.h"
#include "SkReadBuffer.h"
#include "SkWriteBuffer.h"
static void test_flatten(skiatest::Reporter* reporter, const SkImageInfo& info) {
// just need a safe amount of storage, but ensure that it is 4-byte aligned.
int32_t storage[(sizeof(SkImageInfo)*2) / sizeof(int32_t)];
SkWriteBuffer wb(storage, sizeof(storage));
info.flatten(wb);
SkASSERT(wb.bytesWritten() < sizeof(storage));
SkReadBuffer rb(storage, wb.bytesWritten());
SkImageInfo info2;
// pick a noisy byte pattern, so we ensure that unflatten sets all of our fields
memset(&info2, 0xB8, sizeof(info2));
info2.unflatten(rb);
REPORTER_ASSERT(reporter, rb.offset() == wb.bytesWritten());
REPORTER_ASSERT(reporter, info == info2);
}
DEF_TEST(ImageInfo_flattening, reporter) {
for (int ct = 0; ct <= kLastEnum_SkColorType; ++ct) {
for (int at = 0; at <= kLastEnum_SkAlphaType; ++at) {
for (int pt = 0; pt <= kLastEnum_SkColorProfileType; ++pt) {
SkImageInfo info = SkImageInfo::Make(100, 200,
static_cast<SkColorType>(ct),
static_cast<SkAlphaType>(at),
static_cast<SkColorProfileType>(pt));
test_flatten(reporter, info);
}
}
}
}
static void check_isopaque(skiatest::Reporter* reporter, const sk_sp<SkSurface>& surface,
bool expectedOpaque) {
sk_sp<SkImage> image(surface->makeImageSnapshot());
REPORTER_ASSERT(reporter, image->isOpaque() == expectedOpaque);
}
DEF_TEST(ImageIsOpaqueTest, reporter) {
SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
auto surfaceTransparent(SkSurface::MakeRaster(infoTransparent));
check_isopaque(reporter, surfaceTransparent, false);
SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
auto surfaceOpaque(SkSurface::MakeRaster(infoOpaque));
check_isopaque(reporter, surfaceOpaque, true);
}
#if SK_SUPPORT_GPU
DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(ImageIsOpaqueTest_Gpu, reporter, ctxInfo) {
GrContext* context = ctxInfo.fGrContext;
SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
auto surfaceTransparent(SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, infoTransparent));
check_isopaque(reporter, surfaceTransparent, false);
SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
auto surfaceOpaque(SkSurface::MakeRenderTarget(context,SkBudgeted::kNo, infoOpaque));
check_isopaque(reporter, surfaceOpaque, true);
}
#endif
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