7bfda9a23d
Change-Id: I3a9e9e90b0ac1b1099830eaca06506bcce794144 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/530055 Commit-Queue: Brian Salomon <bsalomon@google.com> Auto-Submit: Brian Salomon <bsalomon@google.com> Reviewed-by: Greg Daniel <egdaniel@google.com> Commit-Queue: Greg Daniel <egdaniel@google.com>
103 lines
3.8 KiB
C++
103 lines
3.8 KiB
C++
/*
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* Copyright 2022 Google LLC
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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/SkCanvas.h"
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#include "include/core/SkColorSpace.h"
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#include "include/core/SkSurface.h"
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#include "include/gpu/GrDirectContext.h"
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#include "tests/Test.h"
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#include "tests/TestUtils.h"
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static void check_pixels(skiatest::Reporter* reporter, const SkBitmap& bitmap,
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GrSurfaceOrigin origin) {
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const uint32_t* canvasPixels = static_cast<const uint32_t*>(bitmap.getPixels());
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bool failureFound = false;
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bool foundNonBlue = false;
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for (int cy = 0; cy < 8 && !failureFound; ++cy) {
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int cx = 4; // Just need to check one column;
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SkPMColor canvasPixel = canvasPixels[cy * 8 + cx];
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// We don't know which way the GPU will snap so the non-blue line could either be at row
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// 3 or 4 since we drew the line at a y value of 4. We check that one of those two values
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// is green and all the rest are blue. The key thing is that we should not get any red
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// values since the green line in the saveLayer should snap the same way and overwrite the
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// red line.
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if (cy == 3) {
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if (canvasPixel != 0xFFFF0000 && canvasPixel != 0xFF00FF00) {
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failureFound = true;
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ERRORF(reporter, "Wrong color at %d, %d. Got 0x%08x when we expected Blue or Green."
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" Origin is: %s",
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cx, cy, canvasPixel, GrSurfaceOriginToStr(origin));
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}
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if (canvasPixel != 0XFFFF0000) {
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foundNonBlue = true;
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}
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} else {
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SkPMColor expectedPixel;
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if (cy == 4 && !foundNonBlue) {
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expectedPixel = 0xFF00FF00; // Green
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} else {
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expectedPixel = 0xFFFF0000; // Blue
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}
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if (canvasPixel != expectedPixel) {
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failureFound = true;
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ERRORF(reporter,
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"Wrong color at %d, %d. Got 0x%08x when we expected 0x%08x. Origin is: %s",
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cx, cy, canvasPixel, expectedPixel, GrSurfaceOriginToStr(origin));
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}
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}
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}
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}
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static void run_test(skiatest::Reporter* reporter,
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GrDirectContext* context,
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GrSurfaceOrigin origin) {
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auto beTexture = context->createBackendTexture(8, 8, kRGBA_8888_SkColorType, GrMipmapped::kNo,
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GrRenderable::kYes, GrProtected::kNo);
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REPORTER_ASSERT(reporter, beTexture.isValid());
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if (!beTexture.isValid()) {
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return;
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}
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auto surface = SkSurface::MakeFromBackendTexture(context, beTexture, origin, 0,
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kRGBA_8888_SkColorType, nullptr, nullptr);
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REPORTER_ASSERT(reporter, surface);
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if (!surface) {
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return;
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}
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SkCanvas* canvas = surface->getCanvas();
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canvas->clear(SK_ColorBLUE);
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SkPaint paint;
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paint.setColor(SK_ColorRED);
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canvas->drawLine({ 0,4 }, { 8,4 }, paint);
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SkRect bounds = SkRect::MakeWH(8, 8);
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SkPaint layerPaint;
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canvas->saveLayer(bounds, &paint);
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paint.setColor(SK_ColorGREEN);
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canvas->drawLine({ 0,4 }, { 8,4 }, paint);
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canvas->restore();
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SkBitmap bitmap;
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bitmap.allocPixels(SkImageInfo::Make(8, 8, kRGBA_8888_SkColorType, kPremul_SkAlphaType));
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surface->readPixels(bitmap, 0, 0);
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check_pixels(reporter, bitmap, origin);
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context->deleteBackendTexture(beTexture);
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}
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DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SaveLayerOrigin, reporter, context_info) {
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GrDirectContext* context = context_info.directContext();
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run_test(reporter, context, kBottomLeft_GrSurfaceOrigin);
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run_test(reporter, context, kTopLeft_GrSurfaceOrigin);
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}
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