PatchView() : fAngle(0) {
fShader0 = make_shader0(&fSize0);
fSize1 = fSize0;
if (fSize0.fX == 0 || fSize0.fY == 0) {
fSize1.set(2, 2);
}
fShader1 = make_shader1(fSize1);
const SkScalar S = SkIntToScalar(50);
const SkScalar T = SkIntToScalar(40);
fPts[0].set(S*0, T);
fPts[1].set(S*1, T);
fPts[2].set(S*2, T);
fPts[3].set(S*3, T);
fPts[4].set(S*3, T*2);
fPts[5].set(S*3, T*3);
fPts[6].set(S*3, T*4);
fPts[7].set(S*2, T*4);
fPts[8].set(S*1, T*4);
fPts[9].set(S*0, T*4);
fPts[10].set(S*0, T*3);
fPts[11].set(S*0, T*2);
this->setBGColor(SK_ColorGRAY);
}
VerticesView() {
SkIPoint size;
fShader0 = make_shader0(&size);
fShader1 = make_shader1(size);
make_strip(&fRecs[0], size.fX, size.fY);
make_fan(&fRecs[1], size.fX, size.fY);
make_tris(&fRecs[2]);
fScale = SK_Scalar1;
}
static void mesh_slide(SkCanvas* canvas) {
Rec fRecs[3];
SkIPoint size;
SkShader* fShader0 = make_shader0(&size);
SkShader* fShader1 = make_shader1(size);
SkAutoUnref aur0(fShader0);
SkAutoUnref aur1(fShader1);
make_strip(&fRecs[0], size.fX, size.fY);
make_fan(&fRecs[1], size.fX, size.fY);
make_tris(&fRecs[2]);
SkPaint paint;
paint.setDither(true);
paint.setFilterLevel(SkPaint::kLow_FilterLevel);
for (size_t i = 0; i < SK_ARRAY_COUNT(fRecs); i++) {
canvas->save();
paint.setShader(NULL);
canvas->drawVertices(fRecs[i].fMode, fRecs[i].fCount,
fRecs[i].fVerts, fRecs[i].fTexs,
NULL, NULL, NULL, 0, paint);
canvas->translate(SkIntToScalar(210), 0);
paint.setShader(fShader0);
canvas->drawVertices(fRecs[i].fMode, fRecs[i].fCount,
fRecs[i].fVerts, fRecs[i].fTexs,
NULL, NULL, NULL, 0, paint);
canvas->translate(SkIntToScalar(210), 0);
paint.setShader(fShader1);
canvas->drawVertices(fRecs[i].fMode, fRecs[i].fCount,
fRecs[i].fVerts, fRecs[i].fTexs,
NULL, NULL, NULL, 0, paint);
canvas->restore();
canvas->translate(0, SkIntToScalar(250));
}
}
static void mesh_slide(SkCanvas* canvas) {
Rec fRecs[3];
SkIPoint size;
auto fShader0 = make_shader0(&size);
auto fShader1 = make_shader1(size);
make_strip(&fRecs[0], size.fX, size.fY);
make_fan(&fRecs[1], size.fX, size.fY);
make_tris(&fRecs[2]);
SkPaint paint;
paint.setDither(true);
paint.setFilterQuality(kLow_SkFilterQuality);
for (size_t i = 0; i < SK_ARRAY_COUNT(fRecs); i++) {
canvas->save();
paint.setShader(nullptr);
canvas->drawVertices(fRecs[i].fMode, fRecs[i].fCount,
fRecs[i].fVerts, fRecs[i].fTexs,
nullptr, nullptr, nullptr, 0, paint);
canvas->translate(SkIntToScalar(210), 0);
paint.setShader(fShader0);
canvas->drawVertices(fRecs[i].fMode, fRecs[i].fCount,
fRecs[i].fVerts, fRecs[i].fTexs,
nullptr, nullptr, nullptr, 0, paint);
canvas->translate(SkIntToScalar(210), 0);
paint.setShader(fShader1);
canvas->drawVertices(fRecs[i].fMode, fRecs[i].fCount,
fRecs[i].fVerts, fRecs[i].fTexs,
nullptr, nullptr, nullptr, 0, paint);
canvas->restore();
canvas->translate(0, SkIntToScalar(250));
}
}
void onOnceBeforeDraw() override {
const SkScalar X = 30;
const SkScalar Y = 30;
fPts[0].set(0, 0); fPts[1].set(X/2, 3); fPts[2].set(X, 0);
fPts[3].set(3, Y/2); fPts[4].set(X/2, Y/2); fPts[5].set(X-3, Y/2);
fPts[6].set(0, Y); fPts[7].set(X/2, Y-3); fPts[8].set(X, Y);
const SkScalar w = 40;
const SkScalar h = 40;
fTexs[0].set(0, 0); fTexs[1].set(w/2, 0); fTexs[2].set(w, 0);
fTexs[3].set(0, h/2); fTexs[4].set(w/2, h/2); fTexs[5].set(w, h/2);
fTexs[6].set(0, h); fTexs[7].set(w/2, h); fTexs[8].set(w, h);
fShader1 = make_shader1(w, h);
fShader2 = make_shader2();
fColorFilter = make_color_filter();
SkRandom rand;
for (size_t i = 0; i < SK_ARRAY_COUNT(fColors); ++i) {
fColors[i] = rand.nextU() | 0xFF000000;
}
}
