blob: 5ea795c46b16860b70573dfd3816283b3d6f9785 [file] [log] [blame]
/*
* 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 "sk_tool_utils.h"
#include "SkShader.h"
#include "SkTraceEvent.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(sk_tool_utils::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);
});
}