1/*
2 * Copyright 2011 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "gm.h"
9#include "sk_tool_utils.h"
10#include "SkShader.h"
11using namespace skiagm;
12
13GM::GM() {
14    fMode = kGM_Mode;
15    fBGColor = SK_ColorWHITE;
16    fCanvasIsDeferred = false;
17    fHaveCalledOnceBeforeDraw = false;
18    fStarterMatrix.reset();
19}
20
21GM::~GM() {}
22
23void GM::draw(SkCanvas* canvas) {
24    this->drawBackground(canvas);
25    this->drawContent(canvas);
26}
27
28void GM::drawContent(SkCanvas* canvas) {
29    if (!fHaveCalledOnceBeforeDraw) {
30        fHaveCalledOnceBeforeDraw = true;
31        this->onOnceBeforeDraw();
32    }
33    this->onDraw(canvas);
34}
35
36void GM::drawBackground(SkCanvas* canvas) {
37    if (!fHaveCalledOnceBeforeDraw) {
38        fHaveCalledOnceBeforeDraw = true;
39        this->onOnceBeforeDraw();
40    }
41    this->onDrawBackground(canvas);
42}
43
44const char* GM::getName() {
45    if (fShortName.size() == 0) {
46        fShortName = this->onShortName();
47    }
48    return fShortName.c_str();
49}
50
51void GM::setBGColor(SkColor color) {
52    fBGColor = color;
53}
54
55bool GM::animate(const SkAnimTimer& timer) {
56    return this->onAnimate(timer);
57}
58
59/////////////////////////////////////////////////////////////////////////////////////////////
60
61void GM::onDrawBackground(SkCanvas* canvas) {
62    canvas->drawColor(fBGColor, SkBlendMode::kSrc);
63}
64
65void GM::drawSizeBounds(SkCanvas* canvas, SkColor color) {
66    SkISize size = this->getISize();
67    SkRect r = SkRect::MakeWH(SkIntToScalar(size.width()),
68                              SkIntToScalar(size.height()));
69    SkPaint paint;
70    paint.setColor(color);
71    canvas->drawRect(r, paint);
72}
73
74void GM::DrawGpuOnlyMessage(SkCanvas* canvas) {
75    SkBitmap bmp;
76    bmp.allocN32Pixels(128, 64);
77    SkCanvas bmpCanvas(bmp);
78    bmpCanvas.drawColor(SK_ColorWHITE);
79    SkPaint paint;
80    paint.setAntiAlias(true);
81    paint.setTextSize(20);
82    paint.setColor(SK_ColorRED);
83    sk_tool_utils::set_portable_typeface(&paint);
84    constexpr char kTxt[] = "GPU Only";
85    bmpCanvas.drawText(kTxt, strlen(kTxt), 20, 40, paint);
86    SkMatrix localM;
87    localM.setRotate(35.f);
88    localM.postTranslate(10.f, 0.f);
89    paint.setShader(SkShader::MakeBitmapShader(bmp, SkShader::kMirror_TileMode,
90                                               SkShader::kMirror_TileMode,
91                                               &localM));
92    paint.setFilterQuality(kMedium_SkFilterQuality);
93    canvas->drawPaint(paint);
94    return;
95}
96
97// need to explicitly declare this, or we get some weird infinite loop llist
98template GMRegistry* GMRegistry::gHead;
99
100void skiagm::SimpleGM::onDraw(SkCanvas* canvas) {
101    fDrawProc(canvas);
102}
103
104SkISize skiagm::SimpleGM::onISize() {
105    return fSize;
106}
107
108SkString skiagm::SimpleGM::onShortName() {
109    return fName;
110}
111