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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 "Test.h"
#if SK_SUPPORT_GPU
using namespace sk_gpu_test;
#include "GrContextFactory.h"
#include "SkCanvas.h"
#include "SkImagePriv.h"
#include "SkSurface.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);
}
#endif
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