void
SourceSurfaceSkia::DrawTargetWillChange()
{
  if (mDrawTarget) {
    MaybeUnlock();

    mDrawTarget = nullptr;
    SkBitmap temp = mBitmap;
    mBitmap.reset();
    temp.copyTo(&mBitmap, temp.getConfig());
  }
}
Example #2
0
bool SkShader::setContext(const SkBitmap& device,
                          const SkPaint& paint,
                          const SkMatrix& matrix) {
    SkASSERT(!this->setContextHasBeenCalled());

    const SkMatrix* m = &matrix;
    SkMatrix        total;

    fDeviceConfig = SkToU8(device.getConfig());
    fPaintAlpha = paint.getAlpha();
    if (this->hasLocalMatrix()) {
        total.setConcat(matrix, this->getLocalMatrix());
        m = &total;
    }
    if (m->invert(&fTotalInverse)) {
        fTotalInverseClass = (uint8_t)ComputeMatrixClass(fTotalInverse);
        SkDEBUGCODE(fInSetContext = true;)
        return true;
Example #3
0
bool SkShader::setContext(const SkBitmap& device,
                          const SkPaint& paint,
                          const SkMatrix& matrix) {
    const SkMatrix* m = &matrix;
    SkMatrix        total;

    fDeviceConfig = SkToU8(device.getConfig());
    fPaintAlpha = paint.getAlpha();
    if (fLocalMatrix) {
        total.setConcat(matrix, *fLocalMatrix);
        m = &total;
    }
    if (m->invert(&fTotalInverse)) {
        fTotalInverseClass = (uint8_t)ComputeMatrixClass(fTotalInverse);
        return true;
    }
    return false;
}
bool
SourceSurfaceSkia::InitWithBitmap(const SkBitmap& aBitmap,
                                  SurfaceFormat aFormat,
                                  DrawTargetSkia* aOwner)
{
  mFormat = aFormat;
  mSize = IntSize(aBitmap.width(), aBitmap.height());

  if (aOwner) {
    mBitmap = aBitmap;
    mStride = aBitmap.rowBytes();
    mDrawTarget = aOwner;
    return true;
  } else if (aBitmap.copyTo(&mBitmap, aBitmap.getConfig())) {
    mStride = mBitmap.rowBytes();
    return true;
  }
  return false;
}
/*  Encode bitmaps via CGImageDestination. We setup a DataConsumer which writes
    to our SkWStream. Since we don't reference/own the SkWStream, our consumer
    must only live for the duration of the onEncode() method.
 */
bool SkImageEncoder_CG::onEncode(SkWStream* stream, const SkBitmap& bm,
                                 int quality) {
    // Used for converting a bitmap to 8888.
    const SkBitmap* bmPtr = &bm;
    SkBitmap bitmap8888;

    CFStringRef type;
    switch (fType) {
        case kJPEG_Type:
            type = kUTTypeJPEG;
            break;
        case kPNG_Type:
            // PNG encoding an ARGB_4444 bitmap gives the following errors in GM:
            // <Error>: CGImageDestinationAddImage image could not be converted to destination
            // format.
            // <Error>: CGImageDestinationFinalize image destination does not have enough images
            // So instead we copy to 8888.
            if (bm.getConfig() == SkBitmap::kARGB_4444_Config) {
                bm.copyTo(&bitmap8888, SkBitmap::kARGB_8888_Config);
                bmPtr = &bitmap8888;
            }
            type = kUTTypePNG;
            break;
        default:
            return false;
    }

    CGImageDestinationRef dst = SkStreamToImageDestination(stream, type);
    if (NULL == dst) {
        return false;
    }
    SkAutoTCallVProc<const void, CFRelease> ardst(dst);

    CGImageRef image = SkCreateCGImageRef(*bmPtr);
    if (NULL == image) {
        return false;
    }
    SkAutoTCallVProc<CGImage, CGImageRelease> agimage(image);

    CGImageDestinationAddImage(dst, image, NULL);
    return CGImageDestinationFinalize(dst);
}
void GLUtils::updateTextureWithBitmap(GLuint texture, int x, int y, const SkBitmap& bitmap, GLint filter)
{
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
    glBindTexture(GL_TEXTURE_2D, texture);
    GLUtils::checkGlError("glBindTexture");
    SkBitmap::Config config = bitmap.getConfig();
    int internalformat = getInternalFormat(config);
    int type = getType(config);
    bitmap.lockPixels();
    glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, bitmap.width(), bitmap.height(),
                    internalformat, type, bitmap.getPixels());
    bitmap.unlockPixels();
    if (GLUtils::checkGlError("glTexSubImage2D")) {
        XLOG("GL ERROR: glTexSubImage2D parameters are : bitmap.width() %d, bitmap.height() %d,"
             " x %d, y %d, internalformat 0x%x, type 0x%x, bitmap.getPixels() %p",
             bitmap.width(), bitmap.height(), x, y, internalformat, type, bitmap.getPixels());
    }
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
}
static bool getColor(const SkBitmap& bitmap, int x, int y, SkColor* c) {
    switch (bitmap.getConfig()) {
        case SkBitmap::kARGB_8888_Config:
            *c = SkUnPreMultiply::PMColorToColor(*bitmap.getAddr32(x, y));
            break;
        case SkBitmap::kRGB_565_Config:
            *c = SkPixel16ToPixel32(*bitmap.getAddr16(x, y));
            break;
        case SkBitmap::kARGB_4444_Config:
            *c = SkUnPreMultiply::PMColorToColor(
                                SkPixel4444ToPixel32(*bitmap.getAddr16(x, y)));
            break;
        case SkBitmap::kIndex8_Config: {
            SkColorTable* ctable = bitmap.getColorTable();
            *c = SkUnPreMultiply::PMColorToColor(
                                            (*ctable)[*bitmap.getAddr8(x, y)]);
            break;
        }
        default:
            return false;
    }
    return true;
}
Example #8
0
bool GLUtils::createTextureWithBitmapFailSafe(GLuint texture, const SkBitmap& bitmap, GLint filter)
{
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
    glBindTexture(GL_TEXTURE_2D, texture);

    bool val = GLUtils::checkGlError("glBindTexture", false);
    if(val)
        return false;

    SkBitmap::Config config = bitmap.getConfig();
    int internalformat = getInternalFormat(config);
    int type = getType(config);

    bitmap.lockPixels();
    glTexImage2D(GL_TEXTURE_2D, 0, internalformat, bitmap.width(), bitmap.height(),
                 0, internalformat, type, bitmap.getPixels());
    bitmap.unlockPixels();

    if (GLUtils::checkGlError("glTexImage2D", false)) {
        return false;
    }
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);

    // The following is a workaround -- remove when EGLImage texture upload is fixed.
    GLuint fboID;
    glGenFramebuffers(1, &fboID);
    glBindFramebuffer(GL_FRAMEBUFFER, fboID);
    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
    glCheckFramebufferStatus(GL_FRAMEBUFFER); // should return GL_FRAMEBUFFER_COMPLETE

    glBindFramebuffer(GL_FRAMEBUFFER, 0); // rebind the standard FBO
    glDeleteFramebuffers(1, &fboID);

    return true;
}
status_t BootAnimation::initTexture(const Animation::Frame& frame)
{
    //StopWatch watch("blah");

    SkBitmap bitmap;
    SkMemoryStream  stream(frame.map->getDataPtr(), frame.map->getDataLength());
    SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
    if (codec) {
        codec->setDitherImage(false);
        codec->decode(&stream, &bitmap,
                SkBitmap::kARGB_8888_Config,
                SkImageDecoder::kDecodePixels_Mode);
        delete codec;
    }

    // FileMap memory is never released until application exit.
    // Release it now as the texture is already loaded and the memory used for
    // the packed resource can be released.
    frame.map->release();

    // ensure we can call getPixels(). No need to call unlock, since the
    // bitmap will go out of scope when we return from this method.
    bitmap.lockPixels();

    const int w = bitmap.width();
    const int h = bitmap.height();
    const void* p = bitmap.getPixels();

    GLint crop[4] = { 0, h, w, -h };
    int tw = 1 << (31 - __builtin_clz(w));
    int th = 1 << (31 - __builtin_clz(h));
    if (tw < w) tw <<= 1;
    if (th < h) th <<= 1;

    switch (bitmap.getConfig()) {
        case SkBitmap::kARGB_8888_Config:
            if (tw != w || th != h) {
                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
                        GL_UNSIGNED_BYTE, 0);
                glTexSubImage2D(GL_TEXTURE_2D, 0,
                        0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, p);
            } else {
                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
                        GL_UNSIGNED_BYTE, p);
            }
            break;

        case SkBitmap::kRGB_565_Config:
            if (tw != w || th != h) {
                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
                        GL_UNSIGNED_SHORT_5_6_5, 0);
                glTexSubImage2D(GL_TEXTURE_2D, 0,
                        0, 0, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, p);
            } else {
                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
                        GL_UNSIGNED_SHORT_5_6_5, p);
            }
            break;
        default:
            break;
    }

    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);

    return NO_ERROR;
}
status_t BootAnimation::initTexture(void* buffer, size_t len)
{
    //StopWatch watch("blah");

    SkBitmap bitmap;
    SkMemoryStream  stream(buffer, len);
    SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
    codec->setDitherImage(false);
    if (codec) {
        codec->decode(&stream, &bitmap,
                SkBitmap::kRGB_565_Config,
                SkImageDecoder::kDecodePixels_Mode);
        delete codec;
    }

    // ensure we can call getPixels(). No need to call unlock, since the
    // bitmap will go out of scope when we return from this method.
    bitmap.lockPixels();

    const int w = bitmap.width();
    const int h = bitmap.height();
    const void* p = bitmap.getPixels();

    GLint crop[4] = { 0, h, w, -h };
    int tw = 1 << (31 - __builtin_clz(w));
    int th = 1 << (31 - __builtin_clz(h));
    if (tw < w) tw <<= 1;
    if (th < h) th <<= 1;

    switch (bitmap.getConfig()) {
        case SkBitmap::kARGB_8888_Config:
            if (tw != w || th != h) {
                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
                        GL_UNSIGNED_BYTE, 0);
                glTexSubImage2D(GL_TEXTURE_2D, 0,
                        0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, p);
            } else {
                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
                        GL_UNSIGNED_BYTE, p);
            }
            break;

        case SkBitmap::kRGB_565_Config:
            if (tw != w || th != h) {
                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
                        GL_UNSIGNED_SHORT_5_6_5, 0);
                glTexSubImage2D(GL_TEXTURE_2D, 0,
                        0, 0, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, p);
            } else {
                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
                        GL_UNSIGNED_SHORT_5_6_5, p);
            }
            break;
        default:
            break;
    }

    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);

    return NO_ERROR;
}
status_t BootAnimation::initTexture(Texture* texture, AssetManager& assets,
        const char* name) {
    Asset* asset = assets.open(name, Asset::ACCESS_BUFFER);
    if (!asset)
        return NO_INIT;
    SkBitmap bitmap;
#ifdef SLIDE_HORIZONTAL
    SkBitmap origbitmap;
    SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(),
            &origbitmap, SkBitmap::kNo_Config, SkImageDecoder::kDecodePixels_Mode);
#else
    SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(),
            &bitmap, SkBitmap::kNo_Config, SkImageDecoder::kDecodePixels_Mode);
#endif
    asset->close();
    delete asset;

#ifdef SLIDE_HORIZONTAL
    // create a bitmap with rotated dimensions and draw the rotated original bitmap
    bitmap.setConfig(origbitmap.config(), origbitmap.height(), origbitmap.width());
    bitmap.allocPixels();
    SkCanvas canvas(bitmap);
    canvas.translate(SkIntToScalar(bitmap.width()), 0);
    canvas.rotate(SkIntToScalar(90));
    canvas.drawBitmap(origbitmap, 0, 0, NULL);
#endif

    // ensure we can call getPixels(). No need to call unlock, since the
    // bitmap will go out of scope when we return from this method.
    bitmap.lockPixels();

    const int w = bitmap.width();
    const int h = bitmap.height();
    const void* p = bitmap.getPixels();

    GLint crop[4] = { 0, h, w, -h };
    texture->w = w;
    texture->h = h;

    glGenTextures(1, &texture->name);
    glBindTexture(GL_TEXTURE_2D, texture->name);

    switch (bitmap.getConfig()) {
        case SkBitmap::kA8_Config:
            glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA,
                    GL_UNSIGNED_BYTE, p);
            break;
        case SkBitmap::kARGB_4444_Config:
            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
                    GL_UNSIGNED_SHORT_4_4_4_4, p);
            break;
        case SkBitmap::kARGB_8888_Config:
            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
                    GL_UNSIGNED_BYTE, p);
            break;
        case SkBitmap::kRGB_565_Config:
            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB,
                    GL_UNSIGNED_SHORT_5_6_5, p);
            break;
        default:
            break;
    }

    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
    return NO_ERROR;
}
// since we "may" create a purgeable imageref, we require the stream be ref'able
// i.e. dynamically allocated, since its lifetime may exceed the current stack
// frame.
static jobject doDecode(JNIEnv* env, SkStream* stream, jobject padding,
                        jobject options, bool allowPurgeable, bool forcePurgeable = false,
                        bool applyScale = false, float scale = 1.0f) {

    int sampleSize = 1;

    SkImageDecoder::Mode mode = SkImageDecoder::kDecodePixels_Mode;
    SkBitmap::Config prefConfig = SkBitmap::kARGB_8888_Config;

    bool doDither = true;
    bool isMutable = false;
    bool willScale = applyScale && scale != 1.0f;
    bool isPurgeable = !willScale &&
                       (forcePurgeable || (allowPurgeable && optionsPurgeable(env, options)));
    bool preferQualityOverSpeed = false;

    jobject javaBitmap = NULL;

    if (options != NULL) {
        sampleSize = env->GetIntField(options, gOptions_sampleSizeFieldID);
        if (optionsJustBounds(env, options)) {
            mode = SkImageDecoder::kDecodeBounds_Mode;
        }

        // initialize these, in case we fail later on
        env->SetIntField(options, gOptions_widthFieldID, -1);
        env->SetIntField(options, gOptions_heightFieldID, -1);
        env->SetObjectField(options, gOptions_mimeFieldID, 0);

        jobject jconfig = env->GetObjectField(options, gOptions_configFieldID);
        prefConfig = GraphicsJNI::getNativeBitmapConfig(env, jconfig);
        isMutable = env->GetBooleanField(options, gOptions_mutableFieldID);
        doDither = env->GetBooleanField(options, gOptions_ditherFieldID);
        preferQualityOverSpeed = env->GetBooleanField(options,
                                 gOptions_preferQualityOverSpeedFieldID);
        javaBitmap = env->GetObjectField(options, gOptions_bitmapFieldID);
    }

    if (willScale && javaBitmap != NULL) {
        return nullObjectReturn("Cannot pre-scale a reused bitmap");
    }

    SkImageDecoder* decoder = SkImageDecoder::Factory(stream);
    if (decoder == NULL) {
        return nullObjectReturn("SkImageDecoder::Factory returned null");
    }

    decoder->setSampleSize(sampleSize);
    decoder->setDitherImage(doDither);
    decoder->setPreferQualityOverSpeed(preferQualityOverSpeed);

    NinePatchPeeker peeker(decoder);
    JavaPixelAllocator javaAllocator(env);

    SkBitmap* bitmap;
    if (javaBitmap == NULL) {
        bitmap = new SkBitmap;
    } else {
        if (sampleSize != 1) {
            return nullObjectReturn("SkImageDecoder: Cannot reuse bitmap with sampleSize != 1");
        }
        bitmap = (SkBitmap*) env->GetIntField(javaBitmap, gBitmap_nativeBitmapFieldID);
        // config of supplied bitmap overrules config set in options
        prefConfig = bitmap->getConfig();
    }

    SkAutoTDelete<SkImageDecoder> add(decoder);
    SkAutoTDelete<SkBitmap> adb(bitmap, javaBitmap == NULL);

    decoder->setPeeker(&peeker);
    if (!isPurgeable) {
        decoder->setAllocator(&javaAllocator);
    }

    AutoDecoderCancel adc(options, decoder);

    // To fix the race condition in case "requestCancelDecode"
    // happens earlier than AutoDecoderCancel object is added
    // to the gAutoDecoderCancelMutex linked list.
    if (options != NULL && env->GetBooleanField(options, gOptions_mCancelID)) {
        return nullObjectReturn("gOptions_mCancelID");
    }

    SkImageDecoder::Mode decodeMode = mode;
    if (isPurgeable) {
        decodeMode = SkImageDecoder::kDecodeBounds_Mode;
    }

    SkBitmap* decoded;
    if (willScale) {
        decoded = new SkBitmap;
    } else {
        decoded = bitmap;
    }
    SkAutoTDelete<SkBitmap> adb2(willScale ? decoded : NULL);

    if (!decoder->decode(stream, decoded, prefConfig, decodeMode, javaBitmap != NULL)) {
        return nullObjectReturn("decoder->decode returned false");
    }

    int scaledWidth = decoded->width();
    int scaledHeight = decoded->height();

    if (willScale && mode != SkImageDecoder::kDecodeBounds_Mode) {
        scaledWidth = int(scaledWidth * scale + 0.5f);
        scaledHeight = int(scaledHeight * scale + 0.5f);
    }

    // update options (if any)
    if (options != NULL) {
        env->SetIntField(options, gOptions_widthFieldID, scaledWidth);
        env->SetIntField(options, gOptions_heightFieldID, scaledHeight);
        env->SetObjectField(options, gOptions_mimeFieldID,
                            getMimeTypeString(env, decoder->getFormat()));
    }

    // if we're in justBounds mode, return now (skip the java bitmap)
    if (mode == SkImageDecoder::kDecodeBounds_Mode) {
        return NULL;
    }

    jbyteArray ninePatchChunk = NULL;
    if (peeker.fPatch != NULL) {
        if (willScale) {
            scaleNinePatchChunk(peeker.fPatch, scale);
        }

        size_t ninePatchArraySize = peeker.fPatch->serializedSize();
        ninePatchChunk = env->NewByteArray(ninePatchArraySize);
        if (ninePatchChunk == NULL) {
            return nullObjectReturn("ninePatchChunk == null");
        }

        jbyte* array = (jbyte*) env->GetPrimitiveArrayCritical(ninePatchChunk, NULL);
        if (array == NULL) {
            return nullObjectReturn("primitive array == null");
        }

        peeker.fPatch->serialize(array);
        env->ReleasePrimitiveArrayCritical(ninePatchChunk, array, 0);
    }

    jintArray layoutBounds = NULL;
    if (peeker.fLayoutBounds != NULL) {
        layoutBounds = env->NewIntArray(4);
        if (layoutBounds == NULL) {
            return nullObjectReturn("layoutBounds == null");
        }

        jint scaledBounds[4];
        if (willScale) {
            for (int i=0; i<4; i++) {
                scaledBounds[i] = (jint)((((jint*)peeker.fLayoutBounds)[i]*scale) + .5f);
            }
        } else {
            memcpy(scaledBounds, (jint*)peeker.fLayoutBounds, sizeof(scaledBounds));
        }
        env->SetIntArrayRegion(layoutBounds, 0, 4, scaledBounds);
        if (javaBitmap != NULL) {
            env->SetObjectField(javaBitmap, gBitmap_layoutBoundsFieldID, layoutBounds);
        }
    }

    if (willScale) {
        // This is weird so let me explain: we could use the scale parameter
        // directly, but for historical reasons this is how the corresponding
        // Dalvik code has always behaved. We simply recreate the behavior here.
        // The result is slightly different from simply using scale because of
        // the 0.5f rounding bias applied when computing the target image size
        const float sx = scaledWidth / float(decoded->width());
        const float sy = scaledHeight / float(decoded->height());

        SkBitmap::Config config = decoded->config();
        switch (config) {
        case SkBitmap::kNo_Config:
        case SkBitmap::kIndex8_Config:
        case SkBitmap::kRLE_Index8_Config:
            config = SkBitmap::kARGB_8888_Config;
            break;
        default:
            break;
        }

        bitmap->setConfig(config, scaledWidth, scaledHeight);
        bitmap->setIsOpaque(decoded->isOpaque());
        if (!bitmap->allocPixels(&javaAllocator, NULL)) {
            return nullObjectReturn("allocation failed for scaled bitmap");
        }
        bitmap->eraseColor(0);

        SkPaint paint;
        paint.setFilterBitmap(true);

        SkCanvas canvas(*bitmap);
        canvas.scale(sx, sy);
        canvas.drawBitmap(*decoded, 0.0f, 0.0f, &paint);

        // Save off the unscaled version of bitmap to be used in later
        // transformations if it would reduce memory pressure. Only do
        // so if it is being upscaled more than 50%, is bigger than
        // 256x256, and not too big to be keeping a copy of (<1MB).
        const int numUnscaledPixels = decoded->width() * decoded->height();
        if (sx > 1.5 && numUnscaledPixels > 65536 && numUnscaledPixels < 262144) {
            bitmap->setUnscaledBitmap(decoded);
            adb2.detach(); //responsibility for freeing decoded's memory is
            //transferred to bitmap's destructor
        }
    }

    if (padding) {
        if (peeker.fPatch != NULL) {
            GraphicsJNI::set_jrect(env, padding,
                                   peeker.fPatch->paddingLeft, peeker.fPatch->paddingTop,
                                   peeker.fPatch->paddingRight, peeker.fPatch->paddingBottom);
        } else {
            GraphicsJNI::set_jrect(env, padding, -1, -1, -1, -1);
        }
    }

    SkPixelRef* pr;
    if (isPurgeable) {
        pr = installPixelRef(bitmap, stream, sampleSize, doDither);
    } else {
        // if we get here, we're in kDecodePixels_Mode and will therefore
        // already have a pixelref installed.
        pr = bitmap->pixelRef();
    }
    if (pr == NULL) {
        return nullObjectReturn("Got null SkPixelRef");
    }

    if (!isMutable) {
        // promise we will never change our pixels (great for sharing and pictures)
        pr->setImmutable();
    }

    // detach bitmap from its autodeleter, since we want to own it now
    adb.detach();

    if (javaBitmap != NULL) {
        // If a java bitmap was passed in for reuse, pass it back
        return javaBitmap;
    }
    // now create the java bitmap
    return GraphicsJNI::createBitmap(env, bitmap, javaAllocator.getStorageObj(),
                                     isMutable, ninePatchChunk, layoutBounds, -1);
}
// since we "may" create a purgeable imageref, we require the stream be ref'able
// i.e. dynamically allocated, since its lifetime may exceed the current stack
// frame.
static jobject doDecode(JNIEnv* env, SkStream* stream, jobject padding,
                        jobject options, bool allowPurgeable,
                        bool forcePurgeable = false) {
    int sampleSize = 1;
    int preferSize = 0;
    int postproc = 0;
    int postprocflag = 0;

    SkImageDecoder::Mode mode = SkImageDecoder::kDecodePixels_Mode;
    SkBitmap::Config prefConfig = SkBitmap::kARGB_8888_Config;
    bool doDither = true;
    bool isMutable = false;
    bool isPurgeable = forcePurgeable ||
                        (allowPurgeable && optionsPurgeable(env, options));
    bool preferQualityOverSpeed = false;
    jobject javaBitmap = NULL;

    if (NULL != options) {
        sampleSize = env->GetIntField(options, gOptions_sampleSizeFieldID);
        if (optionsJustBounds(env, options)) {
            mode = SkImageDecoder::kDecodeBounds_Mode;
        }
        // initialize these, in case we fail later on
        env->SetIntField(options, gOptions_widthFieldID, -1);
        env->SetIntField(options, gOptions_heightFieldID, -1);
        env->SetObjectField(options, gOptions_mimeFieldID, 0);

        jobject jconfig = env->GetObjectField(options, gOptions_configFieldID);
        prefConfig = GraphicsJNI::getNativeBitmapConfig(env, jconfig);
        isMutable = env->GetBooleanField(options, gOptions_mutableFieldID);
        doDither = env->GetBooleanField(options, gOptions_ditherFieldID);
        preferQualityOverSpeed = env->GetBooleanField(options,
                gOptions_preferQualityOverSpeedFieldID);
        postproc = env->GetBooleanField(options, gOptions_postprocFieldID);
        postprocflag = env->GetIntField(options, gOptions_postprocflagFieldID);

        javaBitmap = env->GetObjectField(options, gOptions_bitmapFieldID);
    }

    SkImageDecoder* decoder = SkImageDecoder::Factory(stream);
    if (NULL == decoder) {
        return nullObjectReturn("SkImageDecoder::Factory returned null");
    }

    decoder->setSampleSize(sampleSize);
    decoder->setDitherImage(doDither);
    decoder->setPreferQualityOverSpeed(preferQualityOverSpeed);
    decoder->setPreferSize(preferSize);
    decoder->setPostProcFlag((postproc | (postprocflag << 4)));

    NinePatchPeeker     peeker(decoder);
    JavaPixelAllocator  javaAllocator(env);
    SkBitmap*           bitmap;
    if (javaBitmap == NULL) {
        bitmap = new SkBitmap;
    } else {
        if (sampleSize != 1) {
            return nullObjectReturn("SkImageDecoder: Cannot reuse bitmap with sampleSize != 1");
        }
        bitmap = (SkBitmap *) env->GetIntField(javaBitmap, gBitmap_nativeBitmapFieldID);
        // config of supplied bitmap overrules config set in options
        prefConfig = bitmap->getConfig();
    }
    Res_png_9patch      dummy9Patch;

    SkAutoTDelete<SkImageDecoder>   add(decoder);
    SkAutoTDelete<SkBitmap>         adb(bitmap, (javaBitmap == NULL));

    decoder->setPeeker(&peeker);
    if (!isPurgeable) {
        decoder->setAllocator(&javaAllocator);
    }

    AutoDecoderCancel   adc(options, decoder);

    // To fix the race condition in case "requestCancelDecode"
    // happens earlier than AutoDecoderCancel object is added
    // to the gAutoDecoderCancelMutex linked list.
    if (NULL != options && env->GetBooleanField(options, gOptions_mCancelID)) {
        return nullObjectReturn("gOptions_mCancelID");
    }

    SkImageDecoder::Mode decodeMode = mode;
    if (isPurgeable) {
        decodeMode = SkImageDecoder::kDecodeBounds_Mode;
    }
    if (!decoder->decode(stream, bitmap, prefConfig, decodeMode, javaBitmap != NULL)) {
        return nullObjectReturn("decoder->decode returned false");
    }

    // update options (if any)
    if (NULL != options) {
        env->SetIntField(options, gOptions_widthFieldID, bitmap->width());
        env->SetIntField(options, gOptions_heightFieldID, bitmap->height());
        // TODO: set the mimeType field with the data from the codec.
        // but how to reuse a set of strings, rather than allocating new one
        // each time?
        env->SetObjectField(options, gOptions_mimeFieldID,
                            getMimeTypeString(env, decoder->getFormat()));
    }

    // if we're in justBounds mode, return now (skip the java bitmap)
    if (SkImageDecoder::kDecodeBounds_Mode == mode) {
        return NULL;
    }

    jbyteArray ninePatchChunk = NULL;
    if (peeker.fPatchIsValid) {
        size_t ninePatchArraySize = peeker.fPatch->serializedSize();
        ninePatchChunk = env->NewByteArray(ninePatchArraySize);
        if (NULL == ninePatchChunk) {
            return nullObjectReturn("ninePatchChunk == null");
        }
        jbyte* array = (jbyte*)env->GetPrimitiveArrayCritical(ninePatchChunk,
                                                              NULL);
        if (NULL == array) {
            return nullObjectReturn("primitive array == null");
        }
        peeker.fPatch->serialize(array);
        env->ReleasePrimitiveArrayCritical(ninePatchChunk, array, 0);
    }

    // detach bitmap from its autodeleter, since we want to own it now
    adb.detach();

    if (padding) {
        if (peeker.fPatchIsValid) {
            GraphicsJNI::set_jrect(env, padding,
                                   peeker.fPatch->paddingLeft,
                                   peeker.fPatch->paddingTop,
                                   peeker.fPatch->paddingRight,
                                   peeker.fPatch->paddingBottom);
        } else {
            GraphicsJNI::set_jrect(env, padding, -1, -1, -1, -1);
        }
    }

    SkPixelRef* pr;
    if (isPurgeable) {
        pr = installPixelRef(bitmap, stream, sampleSize, doDither);
    } else {
        // if we get here, we're in kDecodePixels_Mode and will therefore
        // already have a pixelref installed.
        pr = bitmap->pixelRef();
    }

    if (!isMutable) {
        // promise we will never change our pixels (great for sharing and pictures)
        pr->setImmutable();
    }

    if (javaBitmap != NULL) {
        // If a java bitmap was passed in for reuse, pass it back
        return javaBitmap;
    }
    // now create the java bitmap
    return GraphicsJNI::createBitmap(env, bitmap, javaAllocator.getStorageObj(),
            isMutable, ninePatchChunk);
}
Example #14
0
SkPDFImage::SkPDFImage(const SkBitmap& bitmap, const SkPaint& paint) {
    SkBitmap::Config config = bitmap.getConfig();

    // TODO(vandebo) Handle alpha and alpha only images correctly.
    SkASSERT(config == SkBitmap::kRGB_565_Config ||
             config == SkBitmap::kARGB_4444_Config ||
             config == SkBitmap::kARGB_8888_Config ||
             config == SkBitmap::kIndex8_Config ||
             config == SkBitmap::kRLE_Index8_Config);

    SkMemoryStream* image_data = extractImageData(bitmap);
    SkAutoUnref image_data_unref(image_data);
    fStream = new SkPDFStream(image_data);
    fStream->unref();  // SkRefPtr and new both took a reference.

    SkRefPtr<SkPDFName> typeValue = new SkPDFName("XObject");
    typeValue->unref();  // SkRefPtr and new both took a reference.
    insert("Type", typeValue.get());

    SkRefPtr<SkPDFName> subTypeValue = new SkPDFName("Image");
    subTypeValue->unref();  // SkRefPtr and new both took a reference.
    insert("Subtype", subTypeValue.get());

    SkRefPtr<SkPDFInt> widthValue = new SkPDFInt(bitmap.width());
    widthValue->unref();  // SkRefPtr and new both took a reference.
    insert("Width", widthValue.get());

    SkRefPtr<SkPDFInt> heightValue = new SkPDFInt(bitmap.height());
    heightValue->unref();  // SkRefPtr and new both took a reference.
    insert("Height", heightValue.get());

    // if (!image mask) {
    SkRefPtr<SkPDFObject> colorSpaceValue;
    if (config == SkBitmap::kIndex8_Config ||
        config == SkBitmap::kRLE_Index8_Config) {
        colorSpaceValue = makeIndexedColorSpace(bitmap.getColorTable());
    } else {
        colorSpaceValue = new SkPDFName("DeviceRGB");
    }
    colorSpaceValue->unref();  // SkRefPtr and new both took a reference.
    insert("ColorSpace", colorSpaceValue.get());
    // }

    int bitsPerComp = bitmap.bytesPerPixel() * 2;
    if (bitsPerComp == 0) {
        SkASSERT(config == SkBitmap::kA1_Config);
        bitsPerComp = 1;
    } else if (bitsPerComp == 2 ||
               (bitsPerComp == 4 && config == SkBitmap::kRGB_565_Config)) {
        bitsPerComp = 8;
    }
    SkRefPtr<SkPDFInt> bitsPerCompValue = new SkPDFInt(bitsPerComp);
    bitsPerCompValue->unref();  // SkRefPtr and new both took a reference.
    insert("BitsPerComponent", bitsPerCompValue.get());

    if (config == SkBitmap::kRGB_565_Config) {
        SkRefPtr<SkPDFInt> zeroVal = new SkPDFInt(0);
        zeroVal->unref();  // SkRefPtr and new both took a reference.
        SkRefPtr<SkPDFScalar> scale5Val = new SkPDFScalar(8.2258);  // 255/2^5-1
        scale5Val->unref();  // SkRefPtr and new both took a reference.
        SkRefPtr<SkPDFScalar> scale6Val = new SkPDFScalar(4.0476);  // 255/2^6-1
        scale6Val->unref();  // SkRefPtr and new both took a reference.
        SkRefPtr<SkPDFArray> decodeValue = new SkPDFArray();
        decodeValue->unref();  // SkRefPtr and new both took a reference.
        decodeValue->reserve(6);
        decodeValue->append(zeroVal.get());
        decodeValue->append(scale5Val.get());
        decodeValue->append(zeroVal.get());
        decodeValue->append(scale6Val.get());
        decodeValue->append(zeroVal.get());
        decodeValue->append(scale5Val.get());
        insert("Decode", decodeValue.get());
    }
}