276 lines
11 KiB
C++
276 lines
11 KiB
C++
/*
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* Copyright 2021 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 "gm/gm.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkRect.h"
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#include "include/core/SkSize.h"
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#include "include/core/SkString.h"
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#include "include/gpu/GrDirectContext.h"
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#include "src/core/SkCanvasPriv.h"
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#include "src/core/SkConvertPixels.h"
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#include "src/gpu/GrDirectContextPriv.h"
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#include "src/gpu/GrPaint.h"
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#include "src/gpu/GrProxyProvider.h"
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#include "src/gpu/GrResourceProvider.h"
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#include "src/gpu/SkGr.h"
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#include "src/gpu/effects/GrTextureEffect.h"
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#include "src/gpu/v1/SurfaceDrawContext_v1.h"
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#include "tools/gpu/ProxyUtils.h"
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static GrSurfaceProxyView create_view(GrDirectContext* dContext,
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const SkBitmap& src,
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GrSurfaceOrigin origin) {
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SkASSERT(src.colorType() == kRGBA_8888_SkColorType);
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#define USE_LAZY_PROXIES 1 // Toggle this to generate the reference images
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if (USE_LAZY_PROXIES) {
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auto format = dContext->priv().caps()->getDefaultBackendFormat(GrColorType::kRGBA_8888,
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GrRenderable::kNo);
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if (!format.isValid()) {
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return {};
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}
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sk_sp<GrTextureProxy> proxy = GrProxyProvider::MakeFullyLazyProxy(
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[src](GrResourceProvider* rp,
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const GrSurfaceProxy::LazySurfaceDesc& desc)
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-> GrSurfaceProxy::LazyCallbackResult {
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SkASSERT(desc.fMipmapped == GrMipmapped::kNo);
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GrMipLevel mipLevel = {src.getPixels(), src.rowBytes(), nullptr};
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auto colorType = SkColorTypeToGrColorType(src.colorType());
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return rp->createTexture(src.dimensions(),
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desc.fFormat,
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desc.fTextureType,
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colorType,
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desc.fRenderable,
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desc.fSampleCnt,
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desc.fBudgeted,
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desc.fFit,
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desc.fProtected,
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mipLevel);
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},
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format, GrRenderable::kNo, 1, GrProtected::kNo, *dContext->priv().caps(),
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GrSurfaceProxy::UseAllocator::kYes);
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if (!proxy) {
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return {};
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}
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auto swizzle = dContext->priv().caps()->getReadSwizzle(proxy->backendFormat(),
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GrColorType::kRGBA_8888);
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return GrSurfaceProxyView(std::move(proxy), origin, swizzle);
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}
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return sk_gpu_test::MakeTextureProxyViewFromData(dContext,
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GrRenderable::kNo,
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origin,
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src.pixmap());
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}
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// Create an over large texture which is initialized to opaque black outside of the content
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// rect. The inside of the content rect consists of a grey coordinate frame lacking the -Y axis.
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// The -X and +X axes have a red and green dot at their ends (respectively). Finally, the content
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// rect has a 1-pixel wide blue border.
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static SkBitmap create_bitmap(SkIRect contentRect, SkISize fullSize, GrSurfaceOrigin origin) {
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const int kContentSize = contentRect.width();
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SkBitmap contentBM;
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{
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SkImageInfo contentInfo = SkImageInfo::Make(kContentSize, kContentSize,
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kRGBA_8888_SkColorType, kOpaque_SkAlphaType);
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contentBM.allocPixels(contentInfo);
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contentBM.eraseColor(SK_ColorWHITE);
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const int halfM1 = kContentSize/2 - 1;
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// The coordinate frame
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contentBM.eraseArea(SkIRect::MakeXYWH(halfM1, 2,2, halfM1), SK_ColorGRAY);
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contentBM.eraseArea(SkIRect::MakeXYWH(2, halfM1, kContentSize-4, 2), SK_ColorGRAY);
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contentBM.eraseArea(SkIRect::MakeXYWH(2, halfM1, 2, 2), SK_ColorRED);
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contentBM.eraseArea(SkIRect::MakeXYWH(kContentSize-4, halfM1, 2, 2), SK_ColorGREEN);
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// The 1-pixel wide rim around the content rect
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contentBM.eraseArea(SkIRect::MakeXYWH(0, 0, kContentSize, 1), SK_ColorBLUE);
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contentBM.eraseArea(SkIRect::MakeXYWH(0, 0, 1, kContentSize), SK_ColorBLUE);
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contentBM.eraseArea(SkIRect::MakeXYWH(kContentSize-1, 0, 1, kContentSize), SK_ColorBLUE);
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contentBM.eraseArea(SkIRect::MakeXYWH(0, kContentSize-1, kContentSize, 1), SK_ColorBLUE);
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}
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SkBitmap bigBM;
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{
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const int kLeft = contentRect.fLeft;
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const int kTop = contentRect.fTop;
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SkImageInfo bigInfo = SkImageInfo::Make(fullSize.fWidth, fullSize.fHeight,
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kRGBA_8888_SkColorType, kOpaque_SkAlphaType);
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bigBM.allocPixels(bigInfo);
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bigBM.eraseColor(SK_ColorBLACK);
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const char* src = static_cast<const char*>(contentBM.getPixels());
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size_t srcRB = contentBM.rowBytes();
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size_t dstRB = bigBM.rowBytes();
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if (USE_LAZY_PROXIES && origin == kBottomLeft_GrSurfaceOrigin) {
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char* dst = static_cast<char*>(bigBM.getAddr(kLeft, fullSize.height() - kTop - 1));
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for (int y = 0; y < contentBM.height(); ++y) {
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memcpy(dst, src, srcRB);
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src = src + srcRB;
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dst = dst - dstRB;
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}
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} else {
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char* dst = static_cast<char*>(bigBM.getAddr(kLeft, kTop));
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SkRectMemcpy(dst, dstRB, src, srcRB,
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contentBM.rowBytes(), contentBM.height());
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}
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bigBM.setAlphaType(kOpaque_SkAlphaType);
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bigBM.setImmutable();
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}
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return bigBM;
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}
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static void draw_texture(const GrCaps* caps,
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skgpu::v1::SurfaceDrawContext* sdc,
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const GrSurfaceProxyView& src,
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const SkIRect& srcRect,
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const SkIRect& drawRect,
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const SkMatrix& mat,
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GrSamplerState::WrapMode xTileMode,
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GrSamplerState::WrapMode yTileMode) {
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GrSamplerState sampler(xTileMode, yTileMode, SkFilterMode::kNearest);
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auto fp = GrTextureEffect::MakeSubset(src, kOpaque_SkAlphaType, mat,
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sampler, SkRect::Make(srcRect), *caps);
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GrPaint paint;
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paint.setColorFragmentProcessor(std::move(fp));
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sdc->drawRect(nullptr, std::move(paint), GrAA::kNo, SkMatrix::I(), SkRect::Make(drawRect));
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}
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namespace skiagm {
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// This GM exercises all the different tile modes for a texture that cannot be normalized
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// early (i.e., rectangle or fully-lazy).
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// TODO: should we also test w/ mipmapping?
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class LazyTilingGM : public GpuGM {
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public:
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LazyTilingGM(GrSurfaceOrigin origin)
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: fOrigin(origin)
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, fContentRect(SkIRect::MakeXYWH(kLeftContentOffset, kTopContentOffset,
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kContentSize, kContentSize)) {
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this->setBGColor(0xFFCCCCCC);
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}
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protected:
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SkString onShortName() override {
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return SkStringPrintf("lazytiling_%s", fOrigin == kTopLeft_GrSurfaceOrigin ? "tl" : "bl");
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}
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SkISize onISize() override {
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return SkISize::Make(kTotalWidth, kTotalHeight);
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}
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DrawResult onGpuSetup(GrDirectContext* dContext, SkString* errorMsg) override {
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if (!dContext || dContext->abandoned()) {
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return DrawResult::kSkip;
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}
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auto bm = create_bitmap(fContentRect,
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{ kLeftContentOffset + kContentSize + kRightContentPadding,
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kTopContentOffset + kContentSize + kBottomContentPadding },
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fOrigin);
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fView = create_view(dContext, bm, fOrigin);
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if (!fView.proxy()) {
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*errorMsg = "Failed to create proxy";
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return DrawResult::kFail;
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}
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return DrawResult::kOk;
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}
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DrawResult onDraw(GrRecordingContext* rContext, SkCanvas* canvas, SkString* errorMsg) override {
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SkSamplingOptions sampling(SkFilterMode::kNearest, SkMipmapMode::kNone);
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SkPaint p;
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auto sdc = SkCanvasPriv::TopDeviceSurfaceDrawContext(canvas);
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if (!sdc) {
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*errorMsg = kErrorMsg_DrawSkippedGpuOnly;
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return DrawResult::kSkip;
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}
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int y = kPad;
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for (auto yMode : { SkTileMode::kClamp, SkTileMode::kRepeat,
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SkTileMode::kMirror, SkTileMode::kDecal }) {
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int x = kPad;
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for (auto xMode : { SkTileMode::kClamp, SkTileMode::kRepeat,
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SkTileMode::kMirror, SkTileMode::kDecal }) {
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SkIRect cellRect = SkIRect::MakeXYWH(x, y, 2*kContentSize, 2*kContentSize);
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SkRect contentRect = SkRect::MakeXYWH(x+kContentSize/2, y+kContentSize/2,
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kContentSize, kContentSize);
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SkMatrix texMatrix = SkMatrix::RectToRect(contentRect, SkRect::Make(fContentRect));
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draw_texture(rContext->priv().caps(),
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sdc,
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fView,
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fContentRect,
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cellRect,
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texMatrix,
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SkTileModeToWrapMode(xMode),
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SkTileModeToWrapMode(yMode));
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x += 2*kContentSize+kPad;
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}
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y += 2*kContentSize+kPad;
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}
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return DrawResult::kOk;
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}
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private:
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inline static constexpr int kLeftContentOffset = 8;
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inline static constexpr int kTopContentOffset = 16;
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inline static constexpr int kRightContentPadding = 24;
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inline static constexpr int kBottomContentPadding = 80;
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inline static constexpr int kPad = 4; // on-screen padding between cells
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inline static constexpr int kContentSize = 32;
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// Each cell in this GM's grid is a square - 2*kContentSize on a side
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inline static constexpr int kTotalWidth = (2*kContentSize+kPad) * kSkTileModeCount + kPad;
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inline static constexpr int kTotalHeight = (2*kContentSize+kPad) * kSkTileModeCount + kPad;
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GrSurfaceOrigin fOrigin;
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SkIRect fContentRect;
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GrSurfaceProxyView fView;
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using INHERITED = GM;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM(return new LazyTilingGM(kTopLeft_GrSurfaceOrigin);)
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DEF_GM(return new LazyTilingGM(kBottomLeft_GrSurfaceOrigin);)
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} // namespace skiagm
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