예제 #1
0
SkShader::Context* SkBitmapProcShader::onCreateContext(const ContextRec& rec, void* storage) const {
    if (!fRawBitmap.getTexture() && !valid_for_drawing(fRawBitmap)) {
        return NULL;
    }

    SkMatrix totalInverse;
    // Do this first, so we know the matrix can be inverted.
    if (!this->computeTotalInverse(rec, &totalInverse)) {
        return NULL;
    }

    void* stateStorage = (char*)storage + sizeof(BitmapProcShaderContext);
    SkBitmapProcState* state = SkNEW_PLACEMENT(stateStorage, SkBitmapProcState);

    SkASSERT(state);
    state->fTileModeX = fTileModeX;
    state->fTileModeY = fTileModeY;
    state->fOrigBitmap = fRawBitmap;
    if (!state->chooseProcs(totalInverse, *rec.fPaint)) {
        state->~SkBitmapProcState();
        return NULL;
    }

    return SkNEW_PLACEMENT_ARGS(storage, BitmapProcShaderContext, (*this, rec, state));
}
예제 #2
0
SkShader::Context* SkBitmapProcShader::MakeContext(const SkShader& shader,
                                                   TileMode tmx, TileMode tmy,
                                                   const SkBitmapProvider& provider,
                                                   const ContextRec& rec, void* storage) {
    SkMatrix totalInverse;
    // Do this first, so we know the matrix can be inverted.
    if (!shader.computeTotalInverse(rec, &totalInverse)) {
        return nullptr;
    }

    void* stateStorage = (char*)storage + sizeof(BitmapProcShaderContext);
    SkBitmapProcState* state = new (stateStorage) SkBitmapProcState(provider, tmx, tmy);

    SkASSERT(state);
    if (!state->chooseProcs(totalInverse, *rec.fPaint)) {
        state->~SkBitmapProcState();
        return nullptr;
    }

    return new (storage) BitmapProcShaderContext(shader, rec, state);
}
예제 #3
0
SkShader::Context* SkBitmapProcShader::onCreateContext(const ContextRec& rec, void* storage) const {
    SkMatrix totalInverse;
    // Do this first, so we know the matrix can be inverted.
    if (!this->computeTotalInverse(rec, &totalInverse)) {
        return NULL;
    }

    void* stateStorage = (char*)storage + sizeof(BitmapProcShaderContext);
    SkBitmapProcState* state = new (stateStorage) SkBitmapProcState;

    SkASSERT(state);
    state->fTileModeX = fTileModeX;
    state->fTileModeY = fTileModeY;
    state->fOrigBitmap = fRawBitmap;
    if (!state->chooseProcs(totalInverse, *rec.fPaint)) {
        state->~SkBitmapProcState();
        return NULL;
    }

    return new (storage) BitmapProcShaderContext(*this, rec, state);
}