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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 "GrContextFactory.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, SkSurface* surface, bool expectedOpaque) {
SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
REPORTER_ASSERT(reporter, image->isOpaque() == expectedOpaque);
}
DEF_TEST(ImageIsOpaqueTest, reporter) {
SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
SkAutoTUnref<SkSurface> surfaceTransparent(SkSurface::NewRaster(infoTransparent));
check_isopaque(reporter, surfaceTransparent, false);
SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
SkAutoTUnref<SkSurface> surfaceOpaque(SkSurface::NewRaster(infoOpaque));
check_isopaque(reporter, surfaceOpaque, true);
}
#if SK_SUPPORT_GPU
DEF_GPUTEST(ImageIsOpaqueTest_GPU, reporter, factory) {
for (int i = 0; i < GrContextFactory::kGLContextTypeCnt; ++i) {
GrContextFactory::GLContextType glCtxType = (GrContextFactory::GLContextType) i;
if (!GrContextFactory::IsRenderingGLContext(glCtxType)) {
continue;
}
GrContext* context = factory->get(glCtxType);
if (nullptr == context) {
continue;
}
SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
SkAutoTUnref<SkSurface> surfaceTransparent(
SkSurface::NewRenderTarget(context,SkSurface::kNo_Budgeted, infoTransparent));
check_isopaque(reporter, surfaceTransparent, false);
SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
SkAutoTUnref<SkSurface> surfaceOpaque(
SkSurface::NewRenderTarget(context,SkSurface::kNo_Budgeted, infoOpaque));
check_isopaque(reporter, surfaceOpaque, true);
}
}
#endif
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