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224 lines
8.6 KiB
224 lines
8.6 KiB
/*
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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 "include/core/SkBitmap.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkImage.h"
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#include "include/core/SkPixmap.h"
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#include "include/core/SkSurface.h"
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#include "include/gpu/GrBackendSurface.h"
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#include "include/gpu/GrDirectContext.h"
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#include "src/core/SkAutoPixmapStorage.h"
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#include "src/core/SkSpecialImage.h"
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#include "src/core/SkSpecialSurface.h"
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#include "src/gpu/GrDirectContextPriv.h"
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#include "src/gpu/GrProxyProvider.h"
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#include "src/gpu/GrSurfaceProxy.h"
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#include "src/gpu/GrTextureProxy.h"
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#include "src/gpu/SkGr.h"
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#include "tests/Test.h"
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// This test creates backing resources exactly sized to [kFullSize x kFullSize].
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// It then wraps them in an SkSpecialImage with only the center (red) region being active.
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// It then draws the SkSpecialImage to a full sized (all blue) canvas and checks that none
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// of the inactive (green) region leaked out.
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static const int kSmallerSize = 10;
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static const int kPad = 3;
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static const int kFullSize = kSmallerSize + 2 * kPad;
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// Create a bitmap with red in the center and green around it
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static SkBitmap create_bm() {
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SkImageInfo ii = SkImageInfo::Make(kFullSize, kFullSize, kRGBA_8888_SkColorType,
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kPremul_SkAlphaType);
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SkBitmap bm;
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bm.allocPixels(ii);
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SkCanvas temp(bm);
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temp.clear(SK_ColorGREEN);
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SkPaint p;
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p.setColor(SK_ColorRED);
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p.setAntiAlias(false);
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temp.drawRect(SkRect::MakeXYWH(SkIntToScalar(kPad), SkIntToScalar(kPad),
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SkIntToScalar(kSmallerSize), SkIntToScalar(kSmallerSize)),
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p);
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bm.setImmutable();
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return bm;
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}
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// Basic test of the SkSpecialImage public API (e.g., peekTexture, peekPixels & draw)
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static void test_image(const sk_sp<SkSpecialImage>& img, skiatest::Reporter* reporter,
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GrRecordingContext* rContext, bool isGPUBacked) {
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const SkIRect subset = img->subset();
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REPORTER_ASSERT(reporter, kPad == subset.left());
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REPORTER_ASSERT(reporter, kPad == subset.top());
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REPORTER_ASSERT(reporter, kSmallerSize == subset.width());
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REPORTER_ASSERT(reporter, kSmallerSize == subset.height());
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//--------------
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// Test that isTextureBacked reports the correct backing type
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REPORTER_ASSERT(reporter, isGPUBacked == img->isTextureBacked());
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//--------------
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// Test view - as long as there is a context this should succeed
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if (rContext) {
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GrSurfaceProxyView view = img->view(rContext);
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REPORTER_ASSERT(reporter, view.asTextureProxy());
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}
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//--------------
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// Test getROPixels - this only works for raster-backed special images
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if (!img->isTextureBacked()) {
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SkBitmap bitmap;
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REPORTER_ASSERT(reporter, img->getROPixels(&bitmap));
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REPORTER_ASSERT(reporter, kSmallerSize == bitmap.width());
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REPORTER_ASSERT(reporter, kSmallerSize == bitmap.height());
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}
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//--------------
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// Test that draw restricts itself to the subset
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sk_sp<SkSpecialSurface> surf(img->makeSurface(kN32_SkColorType, img->getColorSpace(),
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SkISize::Make(kFullSize, kFullSize),
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kPremul_SkAlphaType, SkSurfaceProps()));
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SkCanvas* canvas = surf->getCanvas();
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canvas->clear(SK_ColorBLUE);
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img->draw(canvas, SkIntToScalar(kPad), SkIntToScalar(kPad));
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SkBitmap bm;
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bm.allocN32Pixels(kFullSize, kFullSize, false);
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bool result = canvas->readPixels(bm.info(), bm.getPixels(), bm.rowBytes(), 0, 0);
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SkASSERT_RELEASE(result);
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// Only the center (red) portion should've been drawn into the canvas
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REPORTER_ASSERT(reporter, SK_ColorBLUE == bm.getColor(kPad-1, kPad-1));
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REPORTER_ASSERT(reporter, SK_ColorRED == bm.getColor(kPad, kPad));
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REPORTER_ASSERT(reporter, SK_ColorRED == bm.getColor(kSmallerSize+kPad-1,
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kSmallerSize+kPad-1));
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REPORTER_ASSERT(reporter, SK_ColorBLUE == bm.getColor(kSmallerSize+kPad,
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kSmallerSize+kPad));
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//--------------
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// Test that asImage & makeTightSurface return appropriately sized objects
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// of the correct backing type
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SkIRect newSubset = SkIRect::MakeWH(subset.width(), subset.height());
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{
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sk_sp<SkImage> tightImg(img->asImage(&newSubset));
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REPORTER_ASSERT(reporter, tightImg->width() == subset.width());
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REPORTER_ASSERT(reporter, tightImg->height() == subset.height());
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REPORTER_ASSERT(reporter, isGPUBacked == tightImg->isTextureBacked());
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SkPixmap tmpPixmap;
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REPORTER_ASSERT(reporter, isGPUBacked != !!tightImg->peekPixels(&tmpPixmap));
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}
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{
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sk_sp<SkSurface> tightSurf(img->makeTightSurface(kN32_SkColorType, img->getColorSpace(),
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subset.size()));
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REPORTER_ASSERT(reporter, tightSurf->width() == subset.width());
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REPORTER_ASSERT(reporter, tightSurf->height() == subset.height());
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GrBackendTexture backendTex = tightSurf->getBackendTexture(
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SkSurface::kDiscardWrite_BackendHandleAccess);
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REPORTER_ASSERT(reporter, isGPUBacked == backendTex.isValid());
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SkPixmap tmpPixmap;
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REPORTER_ASSERT(reporter, isGPUBacked != !!tightSurf->peekPixels(&tmpPixmap));
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}
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}
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DEF_TEST(SpecialImage_Raster, reporter) {
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SkBitmap bm = create_bm();
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sk_sp<SkSpecialImage> fullSImage(SkSpecialImage::MakeFromRaster(
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SkIRect::MakeWH(kFullSize, kFullSize),
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bm, SkSurfaceProps()));
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const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
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{
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sk_sp<SkSpecialImage> subSImg1(SkSpecialImage::MakeFromRaster(subset, bm,
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SkSurfaceProps()));
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test_image(subSImg1, reporter, nullptr, false);
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}
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{
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sk_sp<SkSpecialImage> subSImg2(fullSImage->makeSubset(subset));
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test_image(subSImg2, reporter, nullptr, false);
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}
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}
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static void test_specialimage_image(skiatest::Reporter* reporter) {
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SkBitmap bm = create_bm();
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sk_sp<SkImage> fullImage(bm.asImage());
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sk_sp<SkSpecialImage> fullSImage(SkSpecialImage::MakeFromImage(
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nullptr,
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SkIRect::MakeWH(kFullSize, kFullSize),
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fullImage,
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SkSurfaceProps()));
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const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
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{
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sk_sp<SkSpecialImage> subSImg1(SkSpecialImage::MakeFromImage(nullptr, subset, fullImage,
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SkSurfaceProps()));
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test_image(subSImg1, reporter, nullptr, false);
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}
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{
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sk_sp<SkSpecialImage> subSImg2(fullSImage->makeSubset(subset));
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test_image(subSImg2, reporter, nullptr, false);
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}
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}
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DEF_TEST(SpecialImage_Image_Legacy, reporter) {
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test_specialimage_image(reporter);
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}
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DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialImage_Gpu, reporter, ctxInfo) {
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auto context = ctxInfo.directContext();
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SkBitmap bm = create_bm();
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auto [view, ct] = GrMakeUncachedBitmapProxyView(context, bm);
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if (!view) {
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return;
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}
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sk_sp<SkSpecialImage> fullSImg =
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SkSpecialImage::MakeDeferredFromGpu(context,
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SkIRect::MakeWH(kFullSize, kFullSize),
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kNeedNewImageUniqueID_SpecialImage,
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view,
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ct,
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nullptr,
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SkSurfaceProps());
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const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
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{
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sk_sp<SkSpecialImage> subSImg1 = SkSpecialImage::MakeDeferredFromGpu(
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context,
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subset,
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kNeedNewImageUniqueID_SpecialImage,
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std::move(view),
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ct,
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nullptr,
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SkSurfaceProps());
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test_image(subSImg1, reporter, context, true);
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}
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{
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sk_sp<SkSpecialImage> subSImg2 = fullSImg->makeSubset(subset);
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test_image(subSImg2, reporter, context, true);
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}
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}
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