96fcdcc219
DOCS_PREVIEW= https://skia.org/?cl=1316233002 Review URL: https://codereview.chromium.org/1316233002
318 lines
13 KiB
C++
318 lines
13 KiB
C++
/*
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* Copyright 2015 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 "SkCanvas.h"
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#include "SkData.h"
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#include "SkDevice.h"
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#include "SkImageEncoder.h"
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#include "SkImage_Base.h"
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#include "SkRRect.h"
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#include "SkSurface.h"
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#include "SkUtils.h"
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#include "Test.h"
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#if SK_SUPPORT_GPU
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#include "GrContextFactory.h"
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#include "GrTest.h"
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#include "gl/GrGLInterface.h"
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#include "gl/GrGLUtil.h"
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#else
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class GrContextFactory;
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class GrContext;
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#endif
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static void assert_equal(skiatest::Reporter* reporter, SkImage* a, const SkIRect* subsetA,
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SkImage* b) {
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const int widthA = subsetA ? subsetA->width() : a->width();
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const int heightA = subsetA ? subsetA->height() : a->height();
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REPORTER_ASSERT(reporter, widthA == b->width());
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REPORTER_ASSERT(reporter, heightA == b->height());
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#if 0
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// see skbug.com/3965
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bool AO = a->isOpaque();
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bool BO = b->isOpaque();
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REPORTER_ASSERT(reporter, AO == BO);
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#endif
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SkImageInfo info = SkImageInfo::MakeN32(widthA, heightA,
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a->isOpaque() ? kOpaque_SkAlphaType : kPremul_SkAlphaType);
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SkAutoPixmapStorage pmapA, pmapB;
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pmapA.alloc(info);
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pmapB.alloc(info);
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const int srcX = subsetA ? subsetA->x() : 0;
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const int srcY = subsetA ? subsetA->y() : 0;
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REPORTER_ASSERT(reporter, a->readPixels(pmapA, srcX, srcY));
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REPORTER_ASSERT(reporter, b->readPixels(pmapB, 0, 0));
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const size_t widthBytes = widthA * info.bytesPerPixel();
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for (int y = 0; y < heightA; ++y) {
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REPORTER_ASSERT(reporter, !memcmp(pmapA.addr32(0, y), pmapB.addr32(0, y), widthBytes));
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}
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}
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static SkImage* make_image(GrContext* ctx, int w, int h, const SkIRect& ir) {
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const SkImageInfo info = SkImageInfo::MakeN32(w, h, kOpaque_SkAlphaType);
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SkAutoTUnref<SkSurface> surface(ctx ?
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SkSurface::NewRenderTarget(ctx, SkSurface::kNo_Budgeted, info) :
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SkSurface::NewRaster(info));
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SkCanvas* canvas = surface->getCanvas();
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canvas->clear(SK_ColorWHITE);
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SkPaint paint;
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paint.setColor(SK_ColorBLACK);
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canvas->drawRect(SkRect::Make(ir), paint);
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return surface->newImageSnapshot();
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}
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static void test_encode(skiatest::Reporter* reporter, GrContext* ctx) {
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const SkIRect ir = SkIRect::MakeXYWH(5, 5, 10, 10);
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SkAutoTUnref<SkImage> orig(make_image(ctx, 20, 20, ir));
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SkAutoTUnref<SkData> origEncoded(orig->encode());
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REPORTER_ASSERT(reporter, origEncoded);
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REPORTER_ASSERT(reporter, origEncoded->size() > 0);
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SkAutoTUnref<SkImage> decoded(SkImage::NewFromEncoded(origEncoded));
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REPORTER_ASSERT(reporter, decoded);
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assert_equal(reporter, orig, nullptr, decoded);
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// Now see if we can instantiate an image from a subset of the surface/origEncoded
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decoded.reset(SkImage::NewFromEncoded(origEncoded, &ir));
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REPORTER_ASSERT(reporter, decoded);
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assert_equal(reporter, orig, &ir, decoded);
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}
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DEF_TEST(Image_Encode_Cpu, reporter) {
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test_encode(reporter, nullptr);
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}
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#if SK_SUPPORT_GPU
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DEF_GPUTEST(Image_Encode_Gpu, reporter, factory) {
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GrContext* ctx = factory->get(GrContextFactory::kNative_GLContextType);
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if (!ctx) {
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REPORTER_ASSERT(reporter, false);
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return;
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}
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test_encode(reporter, ctx);
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}
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#endif
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DEF_TEST(Image_NewRasterCopy, reporter) {
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const SkPMColor red = SkPackARGB32(0xFF, 0xFF, 0, 0);
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const SkPMColor green = SkPackARGB32(0xFF, 0, 0xFF, 0);
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const SkPMColor blue = SkPackARGB32(0xFF, 0, 0, 0xFF);
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SkPMColor colors[] = { red, green, blue, 0 };
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SkAutoTUnref<SkColorTable> ctable(new SkColorTable(colors, SK_ARRAY_COUNT(colors)));
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// The colortable made a copy, so we can trash the original colors
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memset(colors, 0xFF, sizeof(colors));
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const SkImageInfo srcInfo = SkImageInfo::Make(2, 2, kIndex_8_SkColorType, kPremul_SkAlphaType);
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const size_t srcRowBytes = 2 * sizeof(uint8_t);
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uint8_t indices[] = { 0, 1, 2, 3 };
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SkAutoTUnref<SkImage> image(SkImage::NewRasterCopy(srcInfo, indices, srcRowBytes, ctable));
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// The image made a copy, so we can trash the original indices
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memset(indices, 0xFF, sizeof(indices));
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const SkImageInfo dstInfo = SkImageInfo::MakeN32Premul(2, 2);
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const size_t dstRowBytes = 2 * sizeof(SkPMColor);
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SkPMColor pixels[4];
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memset(pixels, 0xFF, sizeof(pixels)); // init with values we don't expect
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image->readPixels(dstInfo, pixels, dstRowBytes, 0, 0);
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REPORTER_ASSERT(reporter, red == pixels[0]);
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REPORTER_ASSERT(reporter, green == pixels[1]);
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REPORTER_ASSERT(reporter, blue == pixels[2]);
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REPORTER_ASSERT(reporter, 0 == pixels[3]);
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}
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// Test that a draw that only partially covers the drawing surface isn't
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// interpreted as covering the entire drawing surface (i.e., exercise one of the
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// conditions of SkCanvas::wouldOverwriteEntireSurface()).
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DEF_TEST(Image_RetainSnapshot, reporter) {
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const SkPMColor red = SkPackARGB32(0xFF, 0xFF, 0, 0);
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const SkPMColor green = SkPackARGB32(0xFF, 0, 0xFF, 0);
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SkImageInfo info = SkImageInfo::MakeN32Premul(2, 2);
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SkAutoTUnref<SkSurface> surface(SkSurface::NewRaster(info));
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surface->getCanvas()->clear(0xFF00FF00);
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SkPMColor pixels[4];
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memset(pixels, 0xFF, sizeof(pixels)); // init with values we don't expect
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const SkImageInfo dstInfo = SkImageInfo::MakeN32Premul(2, 2);
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const size_t dstRowBytes = 2 * sizeof(SkPMColor);
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SkAutoTUnref<SkImage> image1(surface->newImageSnapshot());
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REPORTER_ASSERT(reporter, image1->readPixels(dstInfo, pixels, dstRowBytes, 0, 0));
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for (size_t i = 0; i < SK_ARRAY_COUNT(pixels); ++i) {
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REPORTER_ASSERT(reporter, pixels[i] == green);
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}
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SkPaint paint;
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paint.setXfermodeMode(SkXfermode::kSrc_Mode);
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paint.setColor(SK_ColorRED);
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surface->getCanvas()->drawRect(SkRect::MakeXYWH(1, 1, 1, 1), paint);
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SkAutoTUnref<SkImage> image2(surface->newImageSnapshot());
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REPORTER_ASSERT(reporter, image2->readPixels(dstInfo, pixels, dstRowBytes, 0, 0));
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REPORTER_ASSERT(reporter, pixels[0] == green);
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REPORTER_ASSERT(reporter, pixels[1] == green);
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REPORTER_ASSERT(reporter, pixels[2] == green);
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REPORTER_ASSERT(reporter, pixels[3] == red);
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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#include "SkImageGenerator.h"
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#include "SkData.h"
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const uint8_t tiny_png[] = {
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0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d,
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0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x64, 0x00, 0x00, 0x00, 0x64,
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0x08, 0x06, 0x00, 0x00, 0x00, 0x70, 0xe2, 0x95, 0x54, 0x00, 0x00, 0x00,
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0x01, 0x73, 0x52, 0x47, 0x42, 0x00, 0xae, 0xce, 0x1c, 0xe9, 0x00, 0x00,
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0x01, 0x6b, 0x49, 0x44, 0x41, 0x54, 0x78, 0x01, 0xed, 0xd3, 0x41, 0x11,
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0x00, 0x20, 0x0c, 0xc4, 0x40, 0xc0, 0xbf, 0xe7, 0xc2, 0xa0, 0x22, 0x8f,
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0xad, 0x82, 0x4c, 0xd2, 0xdb, 0xf3, 0x6e, 0xb9, 0x8c, 0x81, 0x93, 0x21,
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0x01, 0xf2, 0x0d, 0x08, 0x12, 0x7b, 0x04, 0x41, 0x04, 0x89, 0x19, 0x88,
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0xe1, 0x58, 0x88, 0x20, 0x31, 0x03, 0x31, 0x1c, 0x0b, 0x11, 0x24, 0x66,
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0x20, 0x86, 0x63, 0x21, 0x82, 0xc4, 0x0c, 0xc4, 0x70, 0x2c, 0x44, 0x90,
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0x98, 0x81, 0x18, 0x8e, 0x85, 0x08, 0x12, 0x33, 0x10, 0xc3, 0xb1, 0x10,
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0x41, 0x62, 0x06, 0x62, 0x38, 0x16, 0x22, 0x48, 0xcc, 0x40, 0x0c, 0xc7,
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0x42, 0x04, 0x89, 0x19, 0x88, 0xe1, 0x58, 0x88, 0x20, 0x31, 0x03, 0x31,
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0x1c, 0x0b, 0x11, 0x24, 0x66, 0x20, 0x86, 0x63, 0x21, 0x82, 0xc4, 0x0c,
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0xc4, 0x70, 0x2c, 0x44, 0x90, 0x98, 0x81, 0x18, 0x8e, 0x85, 0x08, 0x12,
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0x33, 0x10, 0xc3, 0xb1, 0x10, 0x41, 0x62, 0x06, 0x62, 0x38, 0x16, 0x22,
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0x48, 0xcc, 0x40, 0x0c, 0xc7, 0x42, 0x04, 0x89, 0x19, 0x88, 0xe1, 0x58,
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0x88, 0x20, 0x31, 0x03, 0x31, 0x1c, 0x0b, 0x11, 0x24, 0x66, 0x20, 0x86,
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0x63, 0x21, 0x82, 0xc4, 0x0c, 0xc4, 0x70, 0x2c, 0x44, 0x90, 0x98, 0x81,
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0x18, 0x8e, 0x85, 0x08, 0x12, 0x33, 0x10, 0xc3, 0xb1, 0x10, 0x41, 0x62,
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0x06, 0x62, 0x38, 0x16, 0x22, 0x48, 0xcc, 0x40, 0x0c, 0xc7, 0x42, 0x04,
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0x89, 0x19, 0x88, 0xe1, 0x58, 0x88, 0x20, 0x31, 0x03, 0x31, 0x1c, 0x0b,
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0x11, 0x24, 0x66, 0x20, 0x86, 0x63, 0x21, 0x82, 0xc4, 0x0c, 0xc4, 0x70,
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0x2c, 0x44, 0x90, 0x98, 0x81, 0x18, 0x8e, 0x85, 0x08, 0x12, 0x33, 0x10,
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0xc3, 0xb1, 0x10, 0x41, 0x62, 0x06, 0x62, 0x38, 0x16, 0x22, 0x48, 0xcc,
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0x40, 0x0c, 0xc7, 0x42, 0x04, 0x89, 0x19, 0x88, 0xe1, 0x58, 0x88, 0x20,
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0x31, 0x03, 0x31, 0x1c, 0x0b, 0x11, 0x24, 0x66, 0x20, 0x86, 0x63, 0x21,
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0x82, 0xc4, 0x0c, 0xc4, 0x70, 0x2c, 0x44, 0x90, 0x98, 0x81, 0x18, 0x8e,
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0x85, 0x08, 0x12, 0x33, 0x10, 0xc3, 0xb1, 0x10, 0x41, 0x62, 0x06, 0x62,
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0x38, 0x16, 0x22, 0x48, 0xcc, 0x40, 0x0c, 0xc7, 0x42, 0x04, 0x89, 0x19,
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0x88, 0xe1, 0x58, 0x88, 0x20, 0x31, 0x03, 0x31, 0x1c, 0x0b, 0x11, 0x24,
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0x66, 0x20, 0x86, 0x63, 0x21, 0x82, 0xc4, 0x0c, 0xc4, 0x70, 0x2c, 0x44,
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0x90, 0x98, 0x81, 0x18, 0x8e, 0x85, 0x08, 0x12, 0x33, 0x10, 0xc3, 0xb1,
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0x10, 0x41, 0x62, 0x06, 0x62, 0x38, 0x16, 0x22, 0x48, 0xcc, 0x40, 0x0c,
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0xc7, 0x42, 0x62, 0x41, 0x2e, 0x08, 0x60, 0x04, 0xc4, 0x4c, 0x5d, 0x6e,
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0xf2, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60,
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0x82
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};
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static void make_bitmap_lazy(SkBitmap* bm) {
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SkAutoTUnref<SkData> data(SkData::NewWithoutCopy(tiny_png, sizeof(tiny_png)));
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SkInstallDiscardablePixelRef(data, bm);
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}
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static void make_bitmap_mutable(SkBitmap* bm) {
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bm->allocN32Pixels(10, 10);
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}
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static void make_bitmap_immutable(SkBitmap* bm) {
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bm->allocN32Pixels(10, 10);
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bm->setImmutable();
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}
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DEF_TEST(image_newfrombitmap, reporter) {
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const struct {
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void (*fMakeProc)(SkBitmap*);
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bool fExpectPeekSuccess;
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bool fExpectSharedID;
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bool fExpectLazy;
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} rec[] = {
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{ make_bitmap_lazy, false, true, true },
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{ make_bitmap_mutable, true, false, false },
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{ make_bitmap_immutable, true, true, false },
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};
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for (size_t i = 0; i < SK_ARRAY_COUNT(rec); ++i) {
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SkBitmap bm;
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rec[i].fMakeProc(&bm);
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SkAutoTUnref<SkImage> image(SkImage::NewFromBitmap(bm));
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SkPixmap pmap;
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const bool sharedID = (image->uniqueID() == bm.getGenerationID());
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REPORTER_ASSERT(reporter, sharedID == rec[i].fExpectSharedID);
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const bool peekSuccess = image->peekPixels(&pmap);
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REPORTER_ASSERT(reporter, peekSuccess == rec[i].fExpectPeekSuccess);
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const bool lazy = image->isLazyGenerated();
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REPORTER_ASSERT(reporter, lazy == rec[i].fExpectLazy);
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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#if SK_SUPPORT_GPU
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static SkImage* make_gpu_image(GrContext* ctx, const SkImageInfo& info, SkColor color) {
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const SkSurface::Budgeted budgeted = SkSurface::kNo_Budgeted;
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SkAutoTUnref<SkSurface> surface(SkSurface::NewRenderTarget(ctx, budgeted, info, 0));
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surface->getCanvas()->drawColor(color);
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return surface->newImageSnapshot();
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}
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#include "SkBitmapCache.h"
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/*
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* This tests the caching (and preemptive purge) of the raster equivalent of a gpu-image.
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* We cache it for performance when drawing into a raster surface.
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*
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* A cleaner test would know if each drawImage call triggered a read-back from the gpu,
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* but we don't have that facility (at the moment) so we use a little internal knowledge
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* of *how* the raster version is cached, and look for that.
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*/
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DEF_GPUTEST(SkImage_Gpu2Cpu, reporter, factory) {
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GrContext* ctx = factory->get(GrContextFactory::kNative_GLContextType);
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if (!ctx) {
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REPORTER_ASSERT(reporter, false);
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return;
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}
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const SkImageInfo info = SkImageInfo::MakeN32Premul(10, 10);
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SkAutoTUnref<SkImage> image(make_gpu_image(ctx, info, SK_ColorRED));
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const uint32_t uniqueID = image->uniqueID();
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SkAutoTUnref<SkSurface> surface(SkSurface::NewRaster(info));
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// now we can test drawing a gpu-backed image into a cpu-backed surface
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{
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SkBitmap cachedBitmap;
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REPORTER_ASSERT(reporter, !SkBitmapCache::Find(uniqueID, &cachedBitmap));
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}
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surface->getCanvas()->drawImage(image, 0, 0);
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{
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SkBitmap cachedBitmap;
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if (SkBitmapCache::Find(uniqueID, &cachedBitmap)) {
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REPORTER_ASSERT(reporter, cachedBitmap.getGenerationID() == uniqueID);
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REPORTER_ASSERT(reporter, cachedBitmap.isImmutable());
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REPORTER_ASSERT(reporter, cachedBitmap.getPixels());
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} else {
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// unexpected, but not really a bug, since the cache is global and this test may be
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// run w/ other threads competing for its budget.
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SkDebugf("SkImage_Gpu2Cpu : cachedBitmap was already purged\n");
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}
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}
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image.reset(nullptr);
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{
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SkBitmap cachedBitmap;
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REPORTER_ASSERT(reporter, !SkBitmapCache::Find(uniqueID, &cachedBitmap));
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}
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}
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#endif
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