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135 lines
4.3 KiB
135 lines
4.3 KiB
/*
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* Copyright 2014 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 "include/core/SkBitmap.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkImage.h"
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#include "include/core/SkShader.h"
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#include "include/core/SkSurface.h"
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#include "include/core/SkTypes.h"
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#include "include/gpu/GrDirectContext.h"
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#include "tests/Test.h"
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static void test_bitmap_equality(skiatest::Reporter* reporter, SkBitmap& bm1, SkBitmap& bm2) {
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REPORTER_ASSERT(reporter, bm1.computeByteSize() == bm2.computeByteSize());
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REPORTER_ASSERT(reporter, 0 == memcmp(bm1.getPixels(), bm2.getPixels(), bm1.computeByteSize()));
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}
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static void paint_source(SkSurface* sourceSurface) {
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SkCanvas* sourceCanvas = sourceSurface->getCanvas();
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sourceCanvas->clear(0xFFDEDEDE);
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SkPaint paintColor;
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paintColor.setColor(0xFFFF0000);
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paintColor.setStyle(SkPaint::kFill_Style);
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SkRect rect = SkRect::MakeXYWH(
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SkIntToScalar(1),
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SkIntToScalar(0),
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SkIntToScalar(1),
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SkIntToScalar(sourceSurface->height()));
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sourceCanvas->drawRect(rect, paintColor);
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}
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static void run_shader_test(skiatest::Reporter* reporter, SkSurface* sourceSurface,
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SkSurface* destinationSurface, SkImageInfo& info) {
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paint_source(sourceSurface);
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sk_sp<SkImage> sourceImage(sourceSurface->makeImageSnapshot());
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sk_sp<SkShader> sourceShader = sourceImage->makeShader(
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SkTileMode::kRepeat, SkTileMode::kRepeat, SkSamplingOptions());
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SkPaint paint;
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paint.setShader(sourceShader);
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SkCanvas* destinationCanvas = destinationSurface->getCanvas();
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destinationCanvas->clear(SK_ColorTRANSPARENT);
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destinationCanvas->drawPaint(paint);
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SkBitmap bmOrig;
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bmOrig.allocN32Pixels(info.width(), info.height());
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sourceSurface->readPixels(bmOrig, 0, 0);
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SkBitmap bm;
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bm.allocN32Pixels(info.width(), info.height());
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destinationSurface->readPixels(bm, 0, 0);
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test_bitmap_equality(reporter, bmOrig, bm);
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// Test with a translated shader
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SkMatrix matrix;
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matrix.setTranslate(SkIntToScalar(-1), SkIntToScalar(0));
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sk_sp<SkShader> sourceShaderTranslated = sourceImage->makeShader(
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SkTileMode::kRepeat,
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SkTileMode::kRepeat,
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SkSamplingOptions(), &matrix);
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destinationCanvas->clear(SK_ColorTRANSPARENT);
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SkPaint paintTranslated;
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paintTranslated.setShader(sourceShaderTranslated);
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destinationCanvas->drawPaint(paintTranslated);
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SkBitmap bmt;
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bmt.allocN32Pixels(info.width(), info.height());
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destinationSurface->readPixels(bmt, 0, 0);
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// Test correctness
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{
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for (int y = 0; y < info.height(); y++) {
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REPORTER_ASSERT(reporter, 0xFFFF0000 == bmt.getColor(0, y));
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for (int x = 1; x < info.width(); x++) {
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REPORTER_ASSERT(reporter, 0xFFDEDEDE == bmt.getColor(x, y));
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}
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}
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}
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}
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DEF_TEST(ImageNewShader, reporter) {
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SkImageInfo info = SkImageInfo::MakeN32Premul(5, 5);
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auto sourceSurface(SkSurface::MakeRaster(info));
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auto destinationSurface(SkSurface::MakeRaster(info));
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run_shader_test(reporter, sourceSurface.get(), destinationSurface.get(), info);
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}
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static void gpu_to_gpu(skiatest::Reporter* reporter, GrRecordingContext* rContext) {
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SkImageInfo info = SkImageInfo::MakeN32Premul(5, 5);
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auto sourceSurface(SkSurface::MakeRenderTarget(rContext, SkBudgeted::kNo, info));
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auto destinationSurface(SkSurface::MakeRenderTarget(rContext, SkBudgeted::kNo, info));
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run_shader_test(reporter, sourceSurface.get(), destinationSurface.get(), info);
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}
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static void raster_to_gpu(skiatest::Reporter* reporter, GrRecordingContext* rContext) {
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SkImageInfo info = SkImageInfo::MakeN32Premul(5, 5);
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auto sourceSurface(SkSurface::MakeRaster(info));
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auto destinationSurface(SkSurface::MakeRenderTarget(rContext, SkBudgeted::kNo, info));
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run_shader_test(reporter, sourceSurface.get(), destinationSurface.get(), info);
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}
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DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageNewShader_GPU, reporter, ctxInfo) {
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auto dContext = ctxInfo.directContext();
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// GPU -> GPU
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gpu_to_gpu(reporter, dContext);
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// GPU -> RASTER not currently supported
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// RASTER -> GPU
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raster_to_gpu(reporter, dContext);
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}
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