/*
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* Copyright 2016 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 "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkSpecialImage.h"
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#include "SkSpecialSurface.h"
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#include "Test.h"
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#include "GrCaps.h"
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#include "GrContext.h"
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#include "GrContextPriv.h"
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#include "SkGr.h"
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class TestingSpecialSurfaceAccess {
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public:
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static const SkIRect& Subset(const SkSpecialSurface* surf) {
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return surf->subset();
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}
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};
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// Both 'kSmallerSize' and 'kFullSize' need to be a non-power-of-2 to exercise
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// the gpu's loose fit behavior
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static const int kSmallerSize = 10;
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static const int kPad = 5;
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static const int kFullSize = kSmallerSize + 2 * kPad;
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// Exercise the public API of SkSpecialSurface (e.g., getCanvas, newImageSnapshot)
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static void test_surface(const sk_sp<SkSpecialSurface>& surf,
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skiatest::Reporter* reporter,
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int offset) {
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const SkIRect surfSubset = TestingSpecialSurfaceAccess::Subset(surf.get());
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REPORTER_ASSERT(reporter, offset == surfSubset.fLeft);
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REPORTER_ASSERT(reporter, offset == surfSubset.fTop);
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REPORTER_ASSERT(reporter, kSmallerSize == surfSubset.width());
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REPORTER_ASSERT(reporter, kSmallerSize == surfSubset.height());
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SkCanvas* canvas = surf->getCanvas();
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SkASSERT_RELEASE(canvas);
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canvas->clear(SK_ColorRED);
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sk_sp<SkSpecialImage> img(surf->makeImageSnapshot());
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REPORTER_ASSERT(reporter, img);
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const SkIRect imgSubset = img->subset();
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REPORTER_ASSERT(reporter, surfSubset == imgSubset);
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// the canvas was invalidated by the newImageSnapshot call
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REPORTER_ASSERT(reporter, !surf->getCanvas());
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}
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DEF_TEST(SpecialSurface_Raster, reporter) {
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SkImageInfo info = SkImageInfo::MakeN32(kSmallerSize, kSmallerSize, kOpaque_SkAlphaType);
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sk_sp<SkSpecialSurface> surf(SkSpecialSurface::MakeRaster(info));
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test_surface(surf, reporter, 0);
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}
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DEF_TEST(SpecialSurface_Raster2, reporter) {
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SkBitmap bm;
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bm.allocN32Pixels(kFullSize, kFullSize, true);
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const SkIRect subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
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sk_sp<SkSpecialSurface> surf(SkSpecialSurface::MakeFromBitmap(subset, bm));
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test_surface(surf, reporter, kPad);
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// TODO: check that the clear didn't escape the active region
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}
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DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialSurface_Gpu1, reporter, ctxInfo) {
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for (auto config : { kRGBA_8888_GrPixelConfig, kRGBA_1010102_GrPixelConfig }) {
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const GrCaps* caps = ctxInfo.grContext()->priv().caps();
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if (!caps->isConfigRenderable(config)) {
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continue;
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}
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GrSRGBEncoded srgbEncoded = GrSRGBEncoded::kNo;
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GrColorType colorType = GrPixelConfigToColorTypeAndEncoding(config, &srgbEncoded);
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const GrBackendFormat format =
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caps->getBackendFormatFromGrColorType(colorType, srgbEncoded);
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sk_sp<SkSpecialSurface> surf(SkSpecialSurface::MakeRenderTarget(ctxInfo.grContext(),
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format,
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kSmallerSize, kSmallerSize,
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config, nullptr));
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test_surface(surf, reporter, 0);
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}
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}
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