예제 #1
0
파일: SkDevice.cpp 프로젝트: OwenTan/skia
void SkBaseDevice::drawAtlas(const SkDraw& draw, const SkImage* atlas, const SkRSXform xform[],
                             const SkRect tex[], const SkColor colors[], int count,
                             SkXfermode::Mode mode, const SkPaint& paint) {
    SkPath path;
    path.setIsVolatile(true);

    for (int i = 0; i < count; ++i) {
        SkPoint quad[4];
        xform[i].toQuad(tex[i].width(), tex[i].height(), quad);

        SkMatrix localM;
        localM.setRSXform(xform[i]);
        localM.preTranslate(-tex[i].left(), -tex[i].top());

        SkPaint pnt(paint);
        sk_sp<SkShader> shader = atlas->makeShader(SkShader::kClamp_TileMode,
                                                   SkShader::kClamp_TileMode,
                                                   &localM);
        if (!shader) {
            break;
        }
        pnt.setShader(std::move(shader));

        if (colors) {
            pnt.setColorFilter(SkColorFilter::MakeModeFilter(colors[i], mode));
        }

        path.rewind();
        path.addPoly(quad, 4, true);
        path.setConvexity(SkPath::kConvex_Convexity);
        this->drawPath(draw, path, pnt, nullptr, true);
    }
}
예제 #2
0
void SkOverdrawCanvas::onDrawTextRSXform(const void* text, size_t byteLength,
                                         const SkRSXform xform[], const SkRect*,
                                         const SkPaint& paint) {
    CountTextProc proc = nullptr;
    switch (paint.getTextEncoding()) {
        case SkPaint::kUTF8_TextEncoding:
            proc = SkUTF8_CountUTF8Bytes;
            break;
        case SkPaint::kUTF16_TextEncoding:
            proc = count_utf16;
            break;
        case SkPaint::kUTF32_TextEncoding:
            proc = return_4;
            break;
        case SkPaint::kGlyphID_TextEncoding:
            proc = return_2;
            break;
    }
    SkASSERT(proc);

    SkMatrix matrix;
    const void* stopText = (const char*)text + byteLength;
    while ((const char*)text < (const char*)stopText) {
        matrix.setRSXform(*xform++);
        matrix.setConcat(this->getTotalMatrix(), matrix);
        int subLen = proc((const char*)text);

        this->save();
        this->concat(matrix);
        this->drawText(text, subLen, 0, 0, paint);
        this->restore();

        text = (const char*)text + subLen;
    }
}
예제 #3
0
void SkBaseDevice::drawAtlas(const SkDraw& draw, const SkImage* atlas, const SkRSXform xform[],
                             const SkRect tex[], const SkColor colors[], int count,
                             SkXfermode::Mode mode, const SkPaint& paint) {
    SkPath path;
    path.setIsVolatile(true);

    for (int i = 0; i < count; ++i) {
        SkPoint quad[4];
        xform[i].toQuad(tex[i].width(), tex[i].height(), quad);
        
        SkMatrix localM;
        localM.setRSXform(xform[i]);
        localM.preTranslate(-tex[i].left(), -tex[i].top());

        SkPaint pnt(paint);
        pnt.setShader(atlas->newShader(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode,
                                       &localM))->unref();
        if (colors && colors[i] != SK_ColorWHITE) {
            SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter(colors[i], mode));
            pnt.setColorFilter(cf);
        }
        
        path.rewind();
        path.addPoly(quad, 4, true);
        path.setConvexity(SkPath::kConvex_Convexity);
        this->drawPath(draw, path, pnt, NULL, true);
    }
}
예제 #4
0
void draw(SkCanvas* canvas) {
    SkPaint paint;
    paint.setColor(SK_ColorGRAY);
    paint.setAntiAlias(true);
    SkRect rect = {20, 20, 100, 100};
    canvas->drawRect(rect, paint);
    paint.setColor(SK_ColorRED);
    SkMatrix matrix;
    matrix.setRSXform(SkRSXform::Make(.85f, .25f, rect.centerX(), rect.centerY()));
    canvas->concat(matrix);
    canvas->translate(-rect.centerX(), -rect.centerY());
    canvas->drawRect(rect, paint);
}
예제 #5
0
파일: SampleAtlas.cpp 프로젝트: google/skia
static void draw_atlas_sim(SkCanvas* canvas, SkImage* atlas, const SkRSXform xform[],
                           const SkRect tex[], const SkColor colors[], int count, const SkRect* cull,
                           const SkPaint* paint) {
    for (int i = 0; i < count; ++i) {
        SkMatrix matrix;
        matrix.setRSXform(xform[i]);

        canvas->save();
        canvas->concat(matrix);
        canvas->drawImageRect(atlas, tex[i], tex[i].makeOffset(-tex[i].x(), -tex[i].y()), paint,
                              SkCanvas::kFast_SrcRectConstraint);
        canvas->restore();
    }
}