255 lines
7.8 KiB
C++
255 lines
7.8 KiB
C++
/*
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* Copyright 2011 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 "gm/gm.h"
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#include "gm/verifiers/gmverifier.h"
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#include "include/core/SkBitmap.h"
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#include "include/core/SkBlendMode.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkFont.h"
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#include "include/core/SkFontTypes.h"
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#include "include/core/SkMatrix.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/SkShader.h"
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#include "include/core/SkTileMode.h"
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#include "include/core/SkTypeface.h"
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#include "include/gpu/GrRecordingContext.h"
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#include "src/core/SkCanvasPriv.h"
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#include "src/core/SkTraceEvent.h"
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#include "tools/ToolUtils.h"
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#include <stdarg.h>
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using namespace skiagm;
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static void draw_failure_message(SkCanvas* canvas, const char format[], ...) SK_PRINTF_LIKE(2, 3);
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static void draw_failure_message(SkCanvas* canvas, const char format[], ...) {
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SkString failureMsg;
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va_list argp;
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va_start(argp, format);
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failureMsg.appendVAList(format, argp);
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va_end(argp);
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constexpr SkScalar kOffset = 5.0f;
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canvas->drawColor(SkColorSetRGB(200,0,0));
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SkFont font;
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SkRect bounds;
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font.measureText(failureMsg.c_str(), failureMsg.size(), SkTextEncoding::kUTF8, &bounds);
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SkPaint textPaint(SkColors::kWhite);
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canvas->drawString(failureMsg, kOffset, bounds.height() + kOffset, font, textPaint);
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}
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static void draw_gpu_only_message(SkCanvas* canvas) {
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SkBitmap bmp;
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bmp.allocN32Pixels(128, 64);
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SkCanvas bmpCanvas(bmp);
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bmpCanvas.drawColor(SK_ColorWHITE);
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SkFont font(ToolUtils::create_portable_typeface(), 20);
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SkPaint paint(SkColors::kRed);
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bmpCanvas.drawString("GPU Only", 20, 40, font, paint);
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SkMatrix localM;
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localM.setRotate(35.f);
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localM.postTranslate(10.f, 0.f);
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paint.setShader(bmp.makeShader(SkTileMode::kMirror, SkTileMode::kMirror,
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SkSamplingOptions(SkFilterMode::kLinear,
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SkMipmapMode::kNearest),
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localM));
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canvas->drawPaint(paint);
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}
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static void handle_gm_failure(SkCanvas* canvas, DrawResult result, const SkString& errorMsg) {
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if (DrawResult::kFail == result) {
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draw_failure_message(canvas, "DRAW FAILED: %s", errorMsg.c_str());
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} else if (SkString(GM::kErrorMsg_DrawSkippedGpuOnly) == errorMsg) {
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draw_gpu_only_message(canvas);
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} else {
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draw_failure_message(canvas, "DRAW SKIPPED: %s", errorMsg.c_str());
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}
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}
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GM::GM(SkColor bgColor) {
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fMode = kGM_Mode;
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fBGColor = bgColor;
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}
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GM::~GM() {}
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DrawResult GM::gpuSetup(GrDirectContext* context, SkCanvas* canvas, SkString* errorMsg) {
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TRACE_EVENT1("GM", TRACE_FUNC, "name", TRACE_STR_COPY(this->getName()));
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if (!fGpuSetup) {
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// When drawn in viewer, gpuSetup will be called multiple times with the same
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// GrContext.
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fGpuSetup = true;
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fGpuSetupResult = this->onGpuSetup(context, errorMsg);
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}
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if (DrawResult::kOk != fGpuSetupResult) {
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handle_gm_failure(canvas, fGpuSetupResult, *errorMsg);
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}
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return fGpuSetupResult;
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}
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void GM::gpuTeardown() {
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this->onGpuTeardown();
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// After 'gpuTeardown' a GM can be reused with a different GrContext. Reset the flag
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// so 'onGpuSetup' will be called.
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fGpuSetup = false;
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}
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DrawResult GM::draw(SkCanvas* canvas, SkString* errorMsg) {
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TRACE_EVENT1("GM", TRACE_FUNC, "name", TRACE_STR_COPY(this->getName()));
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this->drawBackground(canvas);
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return this->drawContent(canvas, errorMsg);
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}
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DrawResult GM::drawContent(SkCanvas* canvas, SkString* errorMsg) {
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TRACE_EVENT0("GM", TRACE_FUNC);
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this->onceBeforeDraw();
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SkAutoCanvasRestore acr(canvas, true);
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DrawResult drawResult = this->onDraw(canvas, errorMsg);
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if (DrawResult::kOk != drawResult) {
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handle_gm_failure(canvas, drawResult, *errorMsg);
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}
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return drawResult;
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}
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void GM::drawBackground(SkCanvas* canvas) {
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TRACE_EVENT0("GM", TRACE_FUNC);
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this->onceBeforeDraw();
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canvas->drawColor(fBGColor, SkBlendMode::kSrc);
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}
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DrawResult GM::onDraw(SkCanvas* canvas, SkString* errorMsg) {
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this->onDraw(canvas);
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return DrawResult::kOk;
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}
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void GM::onDraw(SkCanvas*) { SK_ABORT("Not implemented."); }
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SkISize SimpleGM::onISize() { return fSize; }
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SkString SimpleGM::onShortName() { return fName; }
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DrawResult SimpleGM::onDraw(SkCanvas* canvas, SkString* errorMsg) {
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return fDrawProc(canvas, errorMsg);
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}
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SkISize SimpleGpuGM::onISize() { return fSize; }
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SkString SimpleGpuGM::onShortName() { return fName; }
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DrawResult SimpleGpuGM::onDraw(GrRecordingContext* rContext, SkCanvas* canvas, SkString* errorMsg) {
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return fDrawProc(rContext, canvas, errorMsg);
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}
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const char* GM::getName() {
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if (fShortName.size() == 0) {
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fShortName = this->onShortName();
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}
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return fShortName.c_str();
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}
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void GM::setBGColor(SkColor color) {
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fBGColor = color;
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}
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bool GM::animate(double nanos) { return this->onAnimate(nanos); }
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bool GM::runAsBench() const { return false; }
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void GM::modifyGrContextOptions(GrContextOptions* options) {}
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std::unique_ptr<verifiers::VerifierList> GM::getVerifiers() const {
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// No verifiers by default.
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return nullptr;
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}
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void GM::onOnceBeforeDraw() {}
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bool GM::onAnimate(double /*nanos*/) { return false; }
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bool GM::onChar(SkUnichar uni) { return false; }
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bool GM::onGetControls(SkMetaData*) { return false; }
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void GM::onSetControls(const SkMetaData&) {}
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/////////////////////////////////////////////////////////////////////////////////////////////
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void GM::drawSizeBounds(SkCanvas* canvas, SkColor color) {
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canvas->drawRect(SkRect::Make(this->getISize()), SkPaint(SkColor4f::FromColor(color)));
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}
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// need to explicitly declare this, or we get some weird infinite loop llist
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template GMRegistry* GMRegistry::gHead;
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DrawResult GpuGM::onDraw(GrRecordingContext* rContext, SkCanvas* canvas, SkString* errorMsg) {
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this->onDraw(rContext, canvas);
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return DrawResult::kOk;
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}
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void GpuGM::onDraw(GrRecordingContext*, SkCanvas*) {
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SK_ABORT("Not implemented.");
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}
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DrawResult GpuGM::onDraw(SkCanvas* canvas, SkString* errorMsg) {
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auto rContext = canvas->recordingContext();
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if (!rContext) {
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*errorMsg = kErrorMsg_DrawSkippedGpuOnly;
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return DrawResult::kSkip;
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}
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if (rContext->abandoned()) {
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*errorMsg = "GrContext abandoned.";
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return DrawResult::kSkip;
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}
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return this->onDraw(rContext, canvas, errorMsg);
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}
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template <typename Fn>
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static void mark(SkCanvas* canvas, SkScalar x, SkScalar y, Fn&& fn) {
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SkPaint alpha;
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alpha.setAlpha(0x50);
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canvas->saveLayer(nullptr, &alpha);
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canvas->translate(x,y);
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canvas->scale(2,2);
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fn();
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canvas->restore();
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}
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void MarkGMGood(SkCanvas* canvas, SkScalar x, SkScalar y) {
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mark(canvas, x,y, [&]{
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// A green circle.
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canvas->drawCircle(0, 0, 12, SkPaint(SkColor4f::FromColor(SkColorSetRGB(27, 158, 119))));
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// Cut out a check mark.
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SkPaint paint(SkColors::kTransparent);
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paint.setBlendMode(SkBlendMode::kSrc);
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paint.setStrokeWidth(2);
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paint.setStyle(SkPaint::kStroke_Style);
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canvas->drawLine(-6, 0,
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-1, 5, paint);
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canvas->drawLine(-1, +5,
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+7, -5, paint);
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});
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}
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void MarkGMBad(SkCanvas* canvas, SkScalar x, SkScalar y) {
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mark(canvas, x,y, [&] {
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// A red circle.
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canvas->drawCircle(0,0, 12, SkPaint(SkColor4f::FromColor(SkColorSetRGB(231, 41, 138))));
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// Cut out an 'X'.
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SkPaint paint(SkColors::kTransparent);
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paint.setBlendMode(SkBlendMode::kSrc);
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paint.setStrokeWidth(2);
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paint.setStyle(SkPaint::kStroke_Style);
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canvas->drawLine(-5,-5,
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+5,+5, paint);
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canvas->drawLine(+5,-5,
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-5,+5, paint);
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});
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}
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