ClearTest.cpp - Android社区 - https://www.androidos.net.cn/

/*
 * 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 "SkTypes.h"

#include "GrColor.h"
#include "GrContext.h"
#include "GrContextFactory.h"
#include "GrContextOptions.h"
#include "GrContextPriv.h"
#include "GrRenderTargetContext.h"
#include "GrTypes.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkColor.h"
#include "SkColorSpace.h"
#include "SkImageInfo.h"
#include "SkPaint.h"
#include "SkRect.h"
#include "SkRefCnt.h"
#include "SkSurface.h"
#include "Test.h"

#include <cstring>
#include <memory>

static bool check_rect(GrRenderTargetContext* rtc, const SkIRect& rect, uint32_t expectedValue,
                       uint32_t* actualValue, int* failX, int* failY) {
    int w = rect.width();
    int h = rect.height();
    std::unique_ptr<uint32_t[]> pixels(new uint32_t[w * h]);
    memset(pixels.get(), ~expectedValue, sizeof(uint32_t) * w * h);

SkImageInfo dstInfo = SkImageInfo::Make(w, h, kRGBA_8888_SkColorType, kPremul_SkAlphaType);

if (!rtc->readPixels(dstInfo, pixels.get(), 0, rect.fLeft, rect.fTop)) {
        return false;
    }

for (int y = 0; y < h; ++y) {
        for (int x = 0; x < w; ++x) {
            uint32_t pixel = pixels.get()[y * w + x];
            if (pixel != expectedValue) {
                *actualValue = pixel;
                *failX = x + rect.fLeft;
                *failY = y + rect.fTop;
                return false;
            }
        }
    }
    return true;
}

sk_sp<GrRenderTargetContext> newRTC(GrContext* context, int w, int h) {
    const GrBackendFormat format =
            context->priv().caps()->getBackendFormatFromColorType(kRGBA_8888_SkColorType);
    return context->priv().makeDeferredRenderTargetContext(format, SkBackingFit::kExact, w, h,
                                                           kRGBA_8888_GrPixelConfig, nullptr);
}

static void clear_op_test(skiatest::Reporter* reporter, GrContext* context) {
    static const int kW = 10;
    static const int kH = 10;

SkIRect fullRect = SkIRect::MakeWH(kW, kH);
    sk_sp<GrRenderTargetContext> rtContext;

// A rectangle that is inset by one on all sides and the 1-pixel wide rectangles that surround
    // it.
    SkIRect mid1Rect = SkIRect::MakeXYWH(1, 1, kW-2, kH-2);
    SkIRect outerLeftEdge = SkIRect::MakeXYWH(0, 0, 1, kH);
    SkIRect outerTopEdge = SkIRect::MakeXYWH(0, 0, kW, 1);
    SkIRect outerRightEdge = SkIRect::MakeXYWH(kW-1, 0, 1, kH);
    SkIRect outerBottomEdge = SkIRect::MakeXYWH(0, kH-1, kW, 1);

// A rectangle that is inset by two on all sides and the 1-pixel wide rectangles that surround
    // it.
    SkIRect mid2Rect = SkIRect::MakeXYWH(2, 2, kW-4, kH-4);
    SkIRect innerLeftEdge = SkIRect::MakeXYWH(1, 1, 1, kH-2);
    SkIRect innerTopEdge = SkIRect::MakeXYWH(1, 1, kW-2, 1);
    SkIRect innerRightEdge = SkIRect::MakeXYWH(kW-2, 1, 1, kH-2);
    SkIRect innerBottomEdge = SkIRect::MakeXYWH(1, kH-2, kW-2, 1);

uint32_t actualValue;
    int failX, failY;

static const GrColor kColor1 = 0xABCDEF01;
    static const GrColor kColor2 = ~kColor1;
    static const SkPMColor4f kColor1f = SkPMColor4f::FromBytes_RGBA(kColor1);
    static const SkPMColor4f kColor2f = SkPMColor4f::FromBytes_RGBA(kColor2);