blob: 2e08a394fe90961b57ad4360838092becb6acf90 [file] [log] [blame]
/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file
*/
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkImage.h"
#include "include/core/SkPixmap.h"
#include "include/core/SkSurface.h"
#include "include/gpu/GrBackendSurface.h"
#include "include/gpu/GrDirectContext.h"
#include "src/core/SkAutoPixmapStorage.h"
#include "src/core/SkSpecialImage.h"
#include "src/core/SkSpecialSurface.h"
#include "src/gpu/GrBitmapTextureMaker.h"
#include "src/gpu/GrDirectContextPriv.h"
#include "src/gpu/GrProxyProvider.h"
#include "src/gpu/GrSurfaceProxy.h"
#include "src/gpu/GrTextureProxy.h"
#include "src/gpu/SkGr.h"
#include "tests/Test.h"
// This test creates backing resources exactly sized to [kFullSize x kFullSize].
// It then wraps them in an SkSpecialImage with only the center (red) region being active.
// It then draws the SkSpecialImage to a full sized (all blue) canvas and checks that none
// of the inactive (green) region leaked out.
static const int kSmallerSize = 10;
static const int kPad = 3;
static const int kFullSize = kSmallerSize + 2 * kPad;
// Create a bitmap with red in the center and green around it
static SkBitmap create_bm() {
SkImageInfo ii = SkImageInfo::Make(kFullSize, kFullSize, kRGBA_8888_SkColorType,
kPremul_SkAlphaType);
SkBitmap bm;
bm.allocPixels(ii);
SkCanvas temp(bm);
temp.clear(SK_ColorGREEN);
SkPaint p;
p.setColor(SK_ColorRED);
p.setAntiAlias(false);
temp.drawRect(SkRect::MakeXYWH(SkIntToScalar(kPad), SkIntToScalar(kPad),
SkIntToScalar(kSmallerSize), SkIntToScalar(kSmallerSize)),
p);
bm.setImmutable();
return bm;
}
// Basic test of the SkSpecialImage public API (e.g., peekTexture, peekPixels & draw)
static void test_image(const sk_sp<SkSpecialImage>& img, skiatest::Reporter* reporter,
GrRecordingContext* rContext, bool isGPUBacked) {
const SkIRect subset = img->subset();
REPORTER_ASSERT(reporter, kPad == subset.left());
REPORTER_ASSERT(reporter, kPad == subset.top());
REPORTER_ASSERT(reporter, kSmallerSize == subset.width());
REPORTER_ASSERT(reporter, kSmallerSize == subset.height());
//--------------
// Test that isTextureBacked reports the correct backing type
REPORTER_ASSERT(reporter, isGPUBacked == img->isTextureBacked());
//--------------
// Test view - as long as there is a context this should succeed
if (rContext) {
GrSurfaceProxyView view = img->view(rContext);
REPORTER_ASSERT(reporter, view.asTextureProxy());
}
//--------------
// Test getROPixels - this only works for raster-backed special images
if (!img->isTextureBacked()) {
SkBitmap bitmap;
REPORTER_ASSERT(reporter, img->getROPixels(&bitmap));
REPORTER_ASSERT(reporter, kSmallerSize == bitmap.width());
REPORTER_ASSERT(reporter, kSmallerSize == bitmap.height());
}
//--------------
// Test that draw restricts itself to the subset
sk_sp<SkSpecialSurface> surf(img->makeSurface(kN32_SkColorType, img->getColorSpace(),
SkISize::Make(kFullSize, kFullSize),
kPremul_SkAlphaType));
SkCanvas* canvas = surf->getCanvas();
canvas->clear(SK_ColorBLUE);
img->draw(canvas, SkIntToScalar(kPad), SkIntToScalar(kPad), nullptr);
SkBitmap bm;
bm.allocN32Pixels(kFullSize, kFullSize, false);
bool result = canvas->readPixels(bm.info(), bm.getPixels(), bm.rowBytes(), 0, 0);
SkASSERT_RELEASE(result);
// Only the center (red) portion should've been drawn into the canvas
REPORTER_ASSERT(reporter, SK_ColorBLUE == bm.getColor(kPad-1, kPad-1));
REPORTER_ASSERT(reporter, SK_ColorRED == bm.getColor(kPad, kPad));
REPORTER_ASSERT(reporter, SK_ColorRED == bm.getColor(kSmallerSize+kPad-1,
kSmallerSize+kPad-1));
REPORTER_ASSERT(reporter, SK_ColorBLUE == bm.getColor(kSmallerSize+kPad,
kSmallerSize+kPad));
//--------------
// Test that asImage & makeTightSurface return appropriately sized objects
// of the correct backing type
SkIRect newSubset = SkIRect::MakeWH(subset.width(), subset.height());
{
sk_sp<SkImage> tightImg(img->asImage(&newSubset));
REPORTER_ASSERT(reporter, tightImg->width() == subset.width());
REPORTER_ASSERT(reporter, tightImg->height() == subset.height());
REPORTER_ASSERT(reporter, isGPUBacked == tightImg->isTextureBacked());
SkPixmap tmpPixmap;
REPORTER_ASSERT(reporter, isGPUBacked != !!tightImg->peekPixels(&tmpPixmap));
}
{
sk_sp<SkSurface> tightSurf(img->makeTightSurface(kN32_SkColorType, img->getColorSpace(),
subset.size()));
REPORTER_ASSERT(reporter, tightSurf->width() == subset.width());
REPORTER_ASSERT(reporter, tightSurf->height() == subset.height());
GrBackendTexture backendTex = tightSurf->getBackendTexture(
SkSurface::kDiscardWrite_BackendHandleAccess);
REPORTER_ASSERT(reporter, isGPUBacked == backendTex.isValid());
SkPixmap tmpPixmap;
REPORTER_ASSERT(reporter, isGPUBacked != !!tightSurf->peekPixels(&tmpPixmap));
}
}
DEF_TEST(SpecialImage_Raster, reporter) {
SkBitmap bm = create_bm();
sk_sp<SkSpecialImage> fullSImage(SkSpecialImage::MakeFromRaster(
SkIRect::MakeWH(kFullSize, kFullSize),
bm));
const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
{
sk_sp<SkSpecialImage> subSImg1(SkSpecialImage::MakeFromRaster(subset, bm));
test_image(subSImg1, reporter, nullptr, false);
}
{
sk_sp<SkSpecialImage> subSImg2(fullSImage->makeSubset(subset));
test_image(subSImg2, reporter, nullptr, false);
}
}
static void test_specialimage_image(skiatest::Reporter* reporter) {
SkBitmap bm = create_bm();
sk_sp<SkImage> fullImage(bm.asImage());
sk_sp<SkSpecialImage> fullSImage(SkSpecialImage::MakeFromImage(
nullptr,
SkIRect::MakeWH(kFullSize, kFullSize),
fullImage));
const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
{
sk_sp<SkSpecialImage> subSImg1(SkSpecialImage::MakeFromImage(nullptr, subset, fullImage));
test_image(subSImg1, reporter, nullptr, false);
}
{
sk_sp<SkSpecialImage> subSImg2(fullSImage->makeSubset(subset));
test_image(subSImg2, reporter, nullptr, false);
}
}
DEF_TEST(SpecialImage_Image_Legacy, reporter) {
test_specialimage_image(reporter);
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialImage_Gpu, reporter, ctxInfo) {
auto context = ctxInfo.directContext();
SkBitmap bm = create_bm();
GrBitmapTextureMaker maker(context, bm, GrImageTexGenPolicy::kNew_Uncached_Budgeted);
auto view = maker.view(GrMipmapped::kNo);
if (!view.proxy()) {
return;
}
sk_sp<SkSpecialImage> fullSImg(
SkSpecialImage::MakeDeferredFromGpu(context,
SkIRect::MakeWH(kFullSize, kFullSize),
kNeedNewImageUniqueID_SpecialImage,
view,
maker.colorType(),
nullptr));
const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
{
sk_sp<SkSpecialImage> subSImg1(SkSpecialImage::MakeDeferredFromGpu(
context,
subset,
kNeedNewImageUniqueID_SpecialImage,
std::move(view),
maker.colorType(),
nullptr));
test_image(subSImg1, reporter, context, true);
}
{
sk_sp<SkSpecialImage> subSImg2(fullSImg->makeSubset(subset));
test_image(subSImg2, reporter, context, true);
}
}