7c74885e01
intended uses: - flag a SkSurface as sRGB (only supported by Ganesh for now) - flag images (e.g. png or jpeg) as sRGB if the codec tells us that wins: - faster gamma-correct text (esp. w/ distance-fields) when we can use sRGB for text - better color fidelity when the screen really is sRGB Review URL: https://codereview.chromium.org/676883003
96 lines
3.2 KiB
C++
96 lines
3.2 KiB
C++
/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkTypes.h"
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#include "Test.h"
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#if SK_SUPPORT_GPU
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#include "GrContextFactory.h"
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#endif
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#include "SkImage.h"
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#include "SkSurface.h"
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#include "SkReadBuffer.h"
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#include "SkWriteBuffer.h"
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static void test_flatten(skiatest::Reporter* reporter, const SkImageInfo& info) {
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// just need a safe amount of storage
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char storage[sizeof(SkImageInfo)*2];
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SkWriteBuffer wb(storage, sizeof(storage));
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info.flatten(wb);
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SkASSERT(wb.bytesWritten() < sizeof(storage));
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SkReadBuffer rb(storage, wb.bytesWritten());
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SkImageInfo info2;
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// pick a noisy byte pattern, so we ensure that unflatten sets all of our fields
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memset(&info2, 0xB8, sizeof(info2));
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info2.unflatten(rb);
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REPORTER_ASSERT(reporter, rb.offset() == wb.bytesWritten());
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REPORTER_ASSERT(reporter, info == info2);
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}
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DEF_TEST(ImageInfo_flattening, reporter) {
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for (int ct = 0; ct <= kLastEnum_SkColorType; ++ct) {
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for (int at = 0; at <= kLastEnum_SkAlphaType; ++at) {
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for (int pt = 0; pt <= kLastEnum_SkColorProfileType; ++pt) {
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SkImageInfo info = SkImageInfo::Make(100, 200,
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static_cast<SkColorType>(ct),
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static_cast<SkAlphaType>(at),
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static_cast<SkColorProfileType>(pt));
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test_flatten(reporter, info);
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}
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}
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}
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}
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static void check_isopaque(skiatest::Reporter* reporter, SkSurface* surface, bool expectedOpaque) {
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SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
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REPORTER_ASSERT(reporter, image->isOpaque() == expectedOpaque);
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}
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DEF_TEST(ImageIsOpaqueTest, reporter) {
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SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
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SkAutoTUnref<SkSurface> surfaceTransparent(SkSurface::NewRaster(infoTransparent));
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check_isopaque(reporter, surfaceTransparent, false);
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SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
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SkAutoTUnref<SkSurface> surfaceOpaque(SkSurface::NewRaster(infoOpaque));
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check_isopaque(reporter, surfaceOpaque, true);
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}
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#if SK_SUPPORT_GPU
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DEF_GPUTEST(ImageIsOpaqueTest_GPU, reporter, factory) {
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for (int i = 0; i < GrContextFactory::kGLContextTypeCnt; ++i) {
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GrContextFactory::GLContextType glCtxType = (GrContextFactory::GLContextType) i;
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if (!GrContextFactory::IsRenderingGLContext(glCtxType)) {
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continue;
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}
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GrContext* context = factory->get(glCtxType);
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if (NULL == context) {
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continue;
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}
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SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
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SkAutoTUnref<SkSurface> surfaceTransparent(SkSurface::NewRenderTarget(context, infoTransparent));
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check_isopaque(reporter, surfaceTransparent, false);
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SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
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SkAutoTUnref<SkSurface> surfaceOpaque(SkSurface::NewRenderTarget(context, infoOpaque));
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#if 0
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// this is failing right now : TODO fix me
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check_isopaque(reporter, surfaceOpaque, true);
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#endif
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}
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}
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#endif
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