| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm.h" |
| |
| #include "GrContext.h" |
| #include "SkShader.h" |
| #include "SkTraceEvent.h" |
| #include "ToolUtils.h" |
| using namespace skiagm; |
| |
| constexpr char GM::kErrorMsg_DrawSkippedGpuOnly[]; |
| |
| static void draw_failure_message(SkCanvas* canvas, const char format[], ...) { |
| SkString failureMsg; |
| |
| va_list argp; |
| va_start(argp, format); |
| failureMsg.appendVAList(format, argp); |
| va_end(argp); |
| |
| constexpr SkScalar kOffset = 5.0f; |
| canvas->drawColor(SkColorSetRGB(200,0,0)); |
| SkFont font; |
| SkRect bounds; |
| font.measureText(failureMsg.c_str(), failureMsg.size(), kUTF8_SkTextEncoding, &bounds); |
| SkPaint textPaint; |
| textPaint.setColor(SK_ColorWHITE); |
| canvas->drawString(failureMsg, kOffset, bounds.height() + kOffset, font, textPaint); |
| } |
| |
| static void draw_gpu_only_message(SkCanvas* canvas) { |
| SkBitmap bmp; |
| bmp.allocN32Pixels(128, 64); |
| SkCanvas bmpCanvas(bmp); |
| bmpCanvas.drawColor(SK_ColorWHITE); |
| SkFont font(ToolUtils::create_portable_typeface(), 20); |
| SkPaint paint; |
| paint.setColor(SK_ColorRED); |
| bmpCanvas.drawString("GPU Only", 20, 40, font, paint); |
| SkMatrix localM; |
| localM.setRotate(35.f); |
| localM.postTranslate(10.f, 0.f); |
| paint.setShader(SkShader::MakeBitmapShader( |
| bmp, SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, &localM)); |
| paint.setFilterQuality(kMedium_SkFilterQuality); |
| canvas->drawPaint(paint); |
| } |
| |
| GM::GM(SkColor bgColor) { |
| fMode = kGM_Mode; |
| fBGColor = bgColor; |
| fCanvasIsDeferred = false; |
| fHaveCalledOnceBeforeDraw = false; |
| } |
| |
| GM::~GM() {} |
| |
| DrawResult GM::draw(SkCanvas* canvas, SkString* errorMsg) { |
| TRACE_EVENT1("GM", TRACE_FUNC, "name", TRACE_STR_COPY(this->getName())); |
| this->drawBackground(canvas); |
| return this->drawContent(canvas, errorMsg); |
| } |
| |
| DrawResult GM::drawContent(SkCanvas* canvas, SkString* errorMsg) { |
| TRACE_EVENT0("GM", TRACE_FUNC); |
| if (!fHaveCalledOnceBeforeDraw) { |
| fHaveCalledOnceBeforeDraw = true; |
| this->onOnceBeforeDraw(); |
| } |
| SkAutoCanvasRestore acr(canvas, true); |
| DrawResult drawResult = this->onDraw(canvas, errorMsg); |
| if (DrawResult::kOk != drawResult) { |
| if (DrawResult::kFail == drawResult) { |
| draw_failure_message(canvas, "DRAW FAILED: %s", errorMsg->c_str()); |
| } else if (SkString(kErrorMsg_DrawSkippedGpuOnly) == *errorMsg) { |
| draw_gpu_only_message(canvas); |
| } else { |
| draw_failure_message(canvas, "DRAW SKIPPED: %s", errorMsg->c_str()); |
| } |
| } |
| return drawResult; |
| } |
| |
| void GM::drawBackground(SkCanvas* canvas) { |
| TRACE_EVENT0("GM", TRACE_FUNC); |
| if (!fHaveCalledOnceBeforeDraw) { |
| fHaveCalledOnceBeforeDraw = true; |
| this->onOnceBeforeDraw(); |
| } |
| SkAutoCanvasRestore acr(canvas, true); |
| canvas->drawColor(fBGColor, SkBlendMode::kSrc); |
| } |
| |
| DrawResult GM::onDraw(SkCanvas* canvas, SkString* errorMsg) { |
| this->onDraw(canvas); |
| return DrawResult::kOk; |
| } |
| void GM::onDraw(SkCanvas*) { SK_ABORT("Not implemented."); } |
| |
| |
| SkISize SimpleGM::onISize() { return fSize; } |
| SkString SimpleGM::onShortName() { return fName; } |
| DrawResult SimpleGM::onDraw(SkCanvas* canvas, SkString* errorMsg) { |
| return fDrawProc(canvas, errorMsg); |
| } |
| |
| SkISize SimpleGpuGM::onISize() { return fSize; } |
| SkString SimpleGpuGM::onShortName() { return fName; } |
| DrawResult SimpleGpuGM::onDraw(GrContext* ctx, GrRenderTargetContext* rtc, SkCanvas* canvas, |
| SkString* errorMsg) { |
| return fDrawProc(ctx, rtc, canvas, errorMsg); |
| } |
| |
| const char* GM::getName() { |
| if (fShortName.size() == 0) { |
| fShortName = this->onShortName(); |
| } |
| return fShortName.c_str(); |
| } |
| |
| void GM::setBGColor(SkColor color) { |
| fBGColor = color; |
| } |
| |
| bool GM::animate(const SkAnimTimer& timer) { |
| return this->onAnimate(timer); |
| } |
| |
| bool GM::runAsBench() const { return false; } |
| void GM::modifyGrContextOptions(GrContextOptions* options) {} |
| |
| void GM::onOnceBeforeDraw() {} |
| |
| bool GM::onAnimate(const SkAnimTimer&) { return false; } |
| bool GM::onHandleKey(SkUnichar uni) { return false; } |
| bool GM::onGetControls(SkMetaData*) { return false; } |
| void GM::onSetControls(const SkMetaData&) {} |
| |
| ///////////////////////////////////////////////////////////////////////////////////////////// |
| |
| void GM::drawSizeBounds(SkCanvas* canvas, SkColor color) { |
| SkISize size = this->getISize(); |
| SkRect r = SkRect::MakeWH(SkIntToScalar(size.width()), |
| SkIntToScalar(size.height())); |
| SkPaint paint; |
| paint.setColor(color); |
| canvas->drawRect(r, paint); |
| } |
| |
| // need to explicitly declare this, or we get some weird infinite loop llist |
| template GMRegistry* GMRegistry::gHead; |
| |
| DrawResult GpuGM::onDraw(GrContext* ctx, GrRenderTargetContext* rtc, SkCanvas* canvas, |
| SkString* errorMsg) { |
| this->onDraw(ctx, rtc, canvas); |
| return DrawResult::kOk; |
| } |
| void GpuGM::onDraw(GrContext*, GrRenderTargetContext*, SkCanvas*) { |
| SK_ABORT("Not implemented."); |
| } |
| |
| DrawResult GpuGM::onDraw(SkCanvas* canvas, SkString* errorMsg) { |
| GrContext* ctx = canvas->getGrContext(); |
| GrRenderTargetContext* rtc = canvas->internal_private_accessTopLayerRenderTargetContext(); |
| if (!ctx || !rtc) { |
| *errorMsg = kErrorMsg_DrawSkippedGpuOnly; |
| return DrawResult::kSkip; |
| } |
| if (ctx->abandoned()) { |
| *errorMsg = "GrContext abandoned."; |
| return DrawResult::kFail; |
| } |
| return this->onDraw(ctx, rtc, canvas, errorMsg); |
| } |
| |
| template <typename Fn> |
| static void mark(SkCanvas* canvas, SkScalar x, SkScalar y, Fn&& fn) { |
| SkPaint alpha; |
| alpha.setAlpha(0x50); |
| canvas->saveLayer(nullptr, &alpha); |
| canvas->translate(x,y); |
| canvas->scale(2,2); |
| fn(); |
| canvas->restore(); |
| } |
| |
| void MarkGMGood(SkCanvas* canvas, SkScalar x, SkScalar y) { |
| mark(canvas, x,y, [&]{ |
| SkPaint paint; |
| |
| // A green circle. |
| paint.setColor(SkColorSetRGB(27, 158, 119)); |
| canvas->drawCircle(0,0, 12, paint); |
| |
| // Cut out a check mark. |
| paint.setBlendMode(SkBlendMode::kSrc); |
| paint.setColor(0x00000000); |
| paint.setStrokeWidth(2); |
| paint.setStyle(SkPaint::kStroke_Style); |
| canvas->drawLine(-6, 0, |
| -1, 5, paint); |
| canvas->drawLine(-1, +5, |
| +7, -5, paint); |
| }); |
| } |
| |
| void MarkGMBad(SkCanvas* canvas, SkScalar x, SkScalar y) { |
| mark(canvas, x,y, [&] { |
| SkPaint paint; |
| |
| // A red circle. |
| paint.setColor(SkColorSetRGB(231, 41, 138)); |
| canvas->drawCircle(0,0, 12, paint); |
| |
| // Cut out an 'X'. |
| paint.setBlendMode(SkBlendMode::kSrc); |
| paint.setColor(0x00000000); |
| paint.setStrokeWidth(2); |
| paint.setStyle(SkPaint::kStroke_Style); |
| canvas->drawLine(-5,-5, |
| +5,+5, paint); |
| canvas->drawLine(+5,-5, |
| -5,+5, paint); |
| }); |
| } |