6285f4f766
BUG=skia: R=reed@google.com Author: reed@chromium.org Review URL: https://codereview.chromium.org/167683006 git-svn-id: http://skia.googlecode.com/svn/trunk@13516 2bbb7eff-a529-9590-31e7-b0007b416f81
238 lines
10 KiB
C++
238 lines
10 KiB
C++
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/*
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* Copyright 2012 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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#if SK_SUPPORT_GPU
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#include "GrContext.h"
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#include "GrContextFactory.h"
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#include "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkColor.h"
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#include "SkGpuDevice.h"
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#include "SkPaint.h"
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#include "SkPixelRef.h"
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#include "SkRect.h"
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#include "Test.h"
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static const char* boolStr(bool value) {
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return value ? "true" : "false";
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}
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// these are in the same order as the SkBitmap::Config enum
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static const char* gConfigName[] = {
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"None", "8888"
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};
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struct Pair {
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SkBitmap::Config fConfig;
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const char* fValid;
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};
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/**
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* Check to ensure that copying a GPU-backed SkBitmap behaved as expected.
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* @param reporter Used to report failures.
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* @param desiredConfig Config being copied to. If the copy succeeded, dst must have this Config.
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* @param success True if the copy succeeded.
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* @param src A GPU-backed SkBitmap that had copyTo or deepCopyTo called on it.
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* @param dst SkBitmap that was copied to.
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* @param expectSameGenID Whether the genIDs should be the same if success is true.
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*/
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static void TestIndividualCopy(skiatest::Reporter* reporter, const SkBitmap::Config desiredConfig,
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const bool success, const SkBitmap& src, const SkBitmap& dst,
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const bool expectSameGenID) {
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if (success) {
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REPORTER_ASSERT(reporter, src.width() == dst.width());
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REPORTER_ASSERT(reporter, src.height() == dst.height());
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REPORTER_ASSERT(reporter, dst.config() == desiredConfig);
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if (src.config() == dst.config()) {
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if (expectSameGenID) {
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REPORTER_ASSERT(reporter, src.getGenerationID() == dst.getGenerationID());
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} else {
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REPORTER_ASSERT(reporter, src.getGenerationID() != dst.getGenerationID());
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}
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REPORTER_ASSERT(reporter, src.pixelRef() != NULL && dst.pixelRef() != NULL);
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// Do read backs and make sure that the two are the same.
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SkBitmap srcReadBack, dstReadBack;
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{
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SkASSERT(src.getTexture() != NULL);
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const SkIPoint origin = src.pixelRefOrigin();
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const SkIRect subset = SkIRect::MakeXYWH(origin.fX, origin.fY,
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src.width(), src.height());
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bool readBack = src.pixelRef()->readPixels(&srcReadBack, &subset);
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REPORTER_ASSERT(reporter, readBack);
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}
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if (dst.getTexture() != NULL) {
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const SkIPoint origin = dst.pixelRefOrigin();
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const SkIRect subset = SkIRect::MakeXYWH(origin.fX, origin.fY,
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dst.width(), dst.height());
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bool readBack = dst.pixelRef()->readPixels(&dstReadBack, &subset);
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REPORTER_ASSERT(reporter, readBack);
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} else {
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// If dst is not a texture, do a copy instead, to the same config as srcReadBack.
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bool copy = dst.copyTo(&dstReadBack, srcReadBack.config());
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REPORTER_ASSERT(reporter, copy);
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}
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SkAutoLockPixels srcLock(srcReadBack);
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SkAutoLockPixels dstLock(dstReadBack);
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REPORTER_ASSERT(reporter, srcReadBack.readyToDraw() && dstReadBack.readyToDraw());
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const char* srcP = static_cast<const char*>(srcReadBack.getAddr(0, 0));
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const char* dstP = static_cast<const char*>(dstReadBack.getAddr(0, 0));
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REPORTER_ASSERT(reporter, srcP != dstP);
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REPORTER_ASSERT(reporter, !memcmp(srcP, dstP, srcReadBack.getSize()));
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} else {
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REPORTER_ASSERT(reporter, src.getGenerationID() != dst.getGenerationID());
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}
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} else {
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// dst should be unchanged from its initial state
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REPORTER_ASSERT(reporter, dst.config() == SkBitmap::kNo_Config);
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REPORTER_ASSERT(reporter, dst.width() == 0);
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REPORTER_ASSERT(reporter, dst.height() == 0);
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}
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}
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// Stripped down version of TestBitmapCopy that checks basic fields (width, height, config, genID)
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// to ensure that they were copied properly.
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DEF_GPUTEST(GpuBitmapCopy, reporter, factory) {
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#ifdef SK_BUILD_FOR_ANDROID // https://code.google.com/p/skia/issues/detail?id=753
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return;
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#endif
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for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) {
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GrContextFactory::GLContextType glType = static_cast<GrContextFactory::GLContextType>(type);
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if (!GrContextFactory::IsRenderingGLContext(glType)) {
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continue;
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}
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GrContext* grContext = factory->get(glType);
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if (NULL == grContext) {
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continue;
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}
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if (NULL == grContext) {
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return;
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}
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static const Pair gPairs[] = {
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// SkGpuDevice can no longer be Create()ed with kNo_Config
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// (or kUnknown_SkColorType in the new world), hence much of this
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// test will be skipped, since it was checking that calling
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// copyTo or deepCopyTo with src or dst set to kUnknown/kNo would
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// successfully fail.
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//
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// If we can declare that you can *never* create a texture with
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// kUnknown, then perhaps we can remove this entire test...
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//
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// { SkBitmap::kNo_Config, "00" },
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// { SkBitmap::kARGB_8888_Config, "01" },
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{ SkBitmap::kARGB_8888_Config, "1" },
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};
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const int W = 20;
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const int H = 33;
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for (size_t i = 0; i < SK_ARRAY_COUNT(gPairs); i++) {
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SkImageInfo info = SkImageInfo::Make(W, H,
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SkBitmapConfigToColorType(gPairs[i].fConfig),
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kPremul_SkAlphaType);
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SkBitmap src, dst;
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SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(grContext, info, 0));
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SkASSERT(device.get());
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src = device->accessBitmap(false);
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device->clear(SK_ColorWHITE);
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// Draw something different to the same portion of the bitmap that we will extract as a
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// subset, so that comparing the pixels of the subset will be meaningful.
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SkIRect subsetRect = SkIRect::MakeLTRB(W/2, H/2, W, H);
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SkCanvas drawingCanvas(device);
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SkPaint paint;
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paint.setColor(SK_ColorRED);
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drawingCanvas.drawRect(SkRect::Make(subsetRect), paint);
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// Extract a subset. If this succeeds we will test copying the subset.
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SkBitmap subset;
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#ifdef SK_SUPPORT_DEEPCOPYTO_CONFIG
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const bool extracted = src.extractSubset(&subset, subsetRect);
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for (size_t j = 0; j < SK_ARRAY_COUNT(gPairs); j++) {
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dst.reset();
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bool success = src.deepCopyTo(&dst, gPairs[j].fConfig);
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bool expected = gPairs[i].fValid[j] != '0';
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if (success != expected) {
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ERRORF(reporter, "SkBitmap::deepCopyTo from %s to %s. "
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"expected %s returned %s", gConfigName[i],
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gConfigName[j], boolStr(expected),
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boolStr(success));
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}
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bool canSucceed = src.canCopyTo(gPairs[j].fConfig);
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if (success != canSucceed) {
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ERRORF(reporter, "SkBitmap::deepCopyTo from %s to %s "
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"returned %s, but canCopyTo returned %s",
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gConfigName[i], gConfigName[j], boolStr(success),
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boolStr(canSucceed));
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}
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TestIndividualCopy(reporter, gPairs[j].fConfig, success, src, dst, true);
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// Test copying the subset bitmap, using both copyTo and deepCopyTo.
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if (extracted) {
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SkBitmap subsetCopy;
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success = subset.copyTo(&subsetCopy, gPairs[j].fConfig);
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REPORTER_ASSERT(reporter, success == expected);
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REPORTER_ASSERT(reporter, success == canSucceed);
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TestIndividualCopy(reporter, gPairs[j].fConfig, success, subset, subsetCopy,
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true);
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// Reset the bitmap so that a failed copyTo will leave it in the expected state.
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subsetCopy.reset();
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success = subset.deepCopyTo(&subsetCopy, gPairs[j].fConfig);
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REPORTER_ASSERT(reporter, success == expected);
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REPORTER_ASSERT(reporter, success == canSucceed);
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TestIndividualCopy(reporter, gPairs[j].fConfig, success, subset, subsetCopy,
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true);
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// Now set a bitmap to be a subset that will share the same pixelref.
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// This allows testing another case of cloning the genID. When calling copyTo
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// on a bitmap representing a subset of its pixelref, the resulting pixelref
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// should not share the genID, since we only copied the subset.
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SkBitmap trueSubset;
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// FIXME: Once https://codereview.chromium.org/109023008/ lands, call
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// trueSubset.installPixelRef(src.pixelRef(), subset);
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trueSubset.setConfig(gPairs[i].fConfig, W/2, H/2);
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trueSubset.setPixelRef(src.pixelRef(), W/2, H/2);
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subsetCopy.reset();
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success = trueSubset.copyTo(&subsetCopy, gPairs[j].fConfig);
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REPORTER_ASSERT(reporter, success == expected);
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REPORTER_ASSERT(reporter, success == canSucceed);
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TestIndividualCopy(reporter, gPairs[j].fConfig, success, trueSubset, subsetCopy,
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false);
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// deepCopyTo copies the entire pixelref, even if the bitmap only represents
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// a subset. Therefore, the result should share the same genID.
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subsetCopy.reset();
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success = trueSubset.deepCopyTo(&subsetCopy, gPairs[j].fConfig);
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REPORTER_ASSERT(reporter, success == expected);
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REPORTER_ASSERT(reporter, success == canSucceed);
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TestIndividualCopy(reporter, gPairs[j].fConfig, success, trueSubset, subsetCopy,
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true);
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}
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} // for (size_t j = ...
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#endif
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} // for (size_t i = ...
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} // GrContextFactory::GLContextType
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}
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#endif
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