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- /*
- * Copyright 2017 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- // This is a GPU-backend specific test.
- #include "tests/Test.h"
- using namespace sk_gpu_test;
- #include "tools/gpu/GrContextFactory.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkSurface.h"
- #include "src/core/SkImagePriv.h"
- static bool surface_is_expected_color(SkSurface* surf, const SkImageInfo& ii, SkColor color) {
- SkBitmap bm;
- bm.allocPixels(ii);
- surf->readPixels(bm, 0, 0);
- for (int y = 0; y < bm.height(); ++y) {
- for (int x = 0; x < bm.width(); ++x) {
- if (bm.getColor(x, y) != color) {
- return false;
- }
- }
- }
- return true;
- }
- static void basic_test(skiatest::Reporter* reporter, GrContext* context) {
- const SkImageInfo ii = SkImageInfo::Make(64, 64, kN32_SkColorType, kPremul_SkAlphaType);
- SkBitmap bm;
- bm.allocPixels(ii);
- SkCanvas bmCanvas(bm);
- bmCanvas.clear(SK_ColorRED);
- // We start off with the raster image being all red.
- sk_sp<SkImage> img = SkMakeImageFromRasterBitmap(bm, kNever_SkCopyPixelsMode);
- sk_sp<SkSurface> gpuSurface = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, ii);
- SkCanvas* canvas = gpuSurface->getCanvas();
- // w/o pinning - the gpu draw always reflects the current state of the underlying bitmap
- {
- canvas->drawImage(img, 0, 0);
- REPORTER_ASSERT(reporter, surface_is_expected_color(gpuSurface.get(), ii, SK_ColorRED));
- bmCanvas.clear(SK_ColorGREEN);
- canvas->drawImage(img, 0, 0);
- REPORTER_ASSERT(reporter, surface_is_expected_color(gpuSurface.get(), ii, SK_ColorGREEN));
- }
- // w/ pinning - the gpu draw is stuck at the pinned state
- {
- SkImage_pinAsTexture(img.get(), context); // pin at blue
- canvas->drawImage(img, 0, 0);
- REPORTER_ASSERT(reporter, surface_is_expected_color(gpuSurface.get(), ii, SK_ColorGREEN));
- bmCanvas.clear(SK_ColorBLUE);
- canvas->drawImage(img, 0, 0);
- REPORTER_ASSERT(reporter, surface_is_expected_color(gpuSurface.get(), ii, SK_ColorGREEN));
- SkImage_unpinAsTexture(img.get(), context);
- }
- // once unpinned local changes will be picked up
- {
- canvas->drawImage(img, 0, 0);
- REPORTER_ASSERT(reporter, surface_is_expected_color(gpuSurface.get(), ii, SK_ColorBLUE));
- }
- }
- // Deleting the context while there are still pinned images shouldn't result in a crash.
- static void cleanup_test(skiatest::Reporter* reporter) {
- const SkImageInfo ii = SkImageInfo::Make(64, 64, kN32_SkColorType, kPremul_SkAlphaType);
- SkBitmap bm;
- bm.allocPixels(ii);
- SkCanvas bmCanvas(bm);
- bmCanvas.clear(SK_ColorRED);
- for (int i = 0; i < GrContextFactory::kContextTypeCnt; ++i) {
- GrContextFactory::ContextType ctxType = (GrContextFactory::ContextType) i;
- {
- sk_sp<SkImage> img;
- GrContext* context = nullptr;
- {
- GrContextFactory testFactory;
- ContextInfo info = testFactory.getContextInfo(ctxType);
- context = info.grContext();
- if (!context) {
- continue;
- }
- img = SkMakeImageFromRasterBitmap(bm, kNever_SkCopyPixelsMode);
- if (!SkImage_pinAsTexture(img.get(), context)) {
- continue;
- }
- }
- // The GrContext used to pin the image is gone at this point!
- // "context" isn't technically used in this call but it can't be null!
- // We don't really want to support this use case but it currently happens.
- SkImage_unpinAsTexture(img.get(), context);
- }
- }
- }
- DEF_GPUTEST_FOR_RENDERING_CONTEXTS(PinnedImageTest, reporter, ctxInfo) {
- basic_test(reporter, ctxInfo.grContext());
- cleanup_test(reporter);
- }
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