void Image::drawPattern(GraphicsContext* ctxt, const FloatRect& tileRect,
const TransformationMatrix& patternTransform,
const FloatPoint& phase, CompositeOperator compositeOp,
const FloatRect& destRect)
{
SkBitmapRef* image = this->nativeImageForCurrentFrame();
if (!image) { // If it's too early we won't have an image yet.
return;
}
// in case we get called with an incomplete bitmap
const SkBitmap& bitmap = image->bitmap();
if (bitmap.getPixels() == NULL && bitmap.pixelRef() == NULL) {
return;
}
SkRect dstR;
android_setrect(&dstR, destRect);
if (dstR.isEmpty()) {
return;
}
SkCanvas* canvas = ctxt->platformContext()->mCanvas;
SkPaint paint;
SkShader* shader = SkShader::CreateBitmapShader(bitmap,
SkShader::kRepeat_TileMode,
SkShader::kRepeat_TileMode);
paint.setShader(shader)->unref();
// now paint is the only owner of shader
paint.setPorterDuffXfermode(android_convert_compositeOp(compositeOp));
paint.setFilterBitmap(true);
SkMatrix matrix(patternTransform);
float scaleX = (float)image->origWidth() / bitmap.width();
float scaleY = (float)image->origHeight() / bitmap.height();
matrix.preScale(SkFloatToScalar(scaleX), SkFloatToScalar(scaleY));
matrix.postTranslate(SkFloatToScalar(phase.x()),
SkFloatToScalar(phase.y()));
shader->setLocalMatrix(matrix);
canvas->drawRect(dstR, paint);
#ifdef TRACE_SUBSAMPLED_BITMAPS
if (bitmap.width() != image->origWidth() ||
bitmap.height() != image->origHeight()) {
SkDebugf("--- Image::drawPattern [%d %d] orig [%d %d] dst [%g %g]\n",
bitmap.width(), bitmap.height(),
image->origWidth(), image->origHeight(),
SkScalarToFloat(dstR.width()), SkScalarToFloat(dstR.height()));
}
#endif
}
void BitmapImage::draw(GraphicsContext* ctxt, const FloatRect& dstRect,
const FloatRect& srcRect, CompositeOperator compositeOp)
{
startAnimation();
SkBitmapRef* image = this->nativeImageForCurrentFrame();
if (!image) { // If it's too early we won't have an image yet.
return;
}
// in case we get called with an incomplete bitmap
const SkBitmap& bitmap = image->bitmap();
if (bitmap.getPixels() == NULL && bitmap.pixelRef() == NULL) {
#ifdef TRACE_SKIPPED_BITMAPS
SkDebugf("----- skip bitmapimage: [%d %d] pixels %p pixelref %p\n",
bitmap.width(), bitmap.height(),
bitmap.getPixels(), bitmap.pixelRef());
#endif
return;
}
SkIRect srcR;
SkRect dstR;
float invScaleX = (float)bitmap.width() / image->origWidth();
float invScaleY = (float)bitmap.height() / image->origHeight();
android_setrect(&dstR, dstRect);
android_setrect_scaled(&srcR, srcRect, invScaleX, invScaleY);
if (srcR.isEmpty() || dstR.isEmpty()) {
#ifdef TRACE_SKIPPED_BITMAPS
SkDebugf("----- skip bitmapimage: [%d %d] src-empty %d dst-empty %d\n",
bitmap.width(), bitmap.height(),
srcR.isEmpty(), dstR.isEmpty());
#endif
return;
}
SkCanvas* canvas = ctxt->platformContext()->mCanvas;
SkPaint paint;
paint.setFilterBitmap(true);
paint.setPorterDuffXfermode(android_convert_compositeOp(compositeOp));
canvas->drawBitmapRect(bitmap, &srcR, dstR, &paint);
#ifdef TRACE_SUBSAMPLED_BITMAPS
if (bitmap.width() != image->origWidth() ||
bitmap.height() != image->origHeight()) {
SkDebugf("--- BitmapImage::draw [%d %d] orig [%d %d]\n",
bitmap.width(), bitmap.height(),
image->origWidth(), image->origHeight());
}
#endif
}
void Image::drawPattern(GraphicsContext* gc, const FloatRect& srcRect,
const AffineTransform& patternTransform,
const FloatPoint& phase, ColorSpace,
CompositeOperator compositeOp, const FloatRect& destRect)
{
SkBitmapRef* image = this->nativeImageForCurrentFrame();
if (!image || destRect.isEmpty())
return;
// in case we get called with an incomplete bitmap
const SkBitmap& origBitmap = image->bitmap();
if (origBitmap.getPixels() == NULL && origBitmap.pixelRef() == NULL)
return;
SkIRect srcR;
// we may have to scale if the image has been subsampled (so save RAM)
bool imageIsSubSampled = image->origWidth() != origBitmap.width() ||
image->origHeight() != origBitmap.height();
float scaleX = 1;
float scaleY = 1;
if (imageIsSubSampled) {
scaleX = (float)image->origWidth() / origBitmap.width();
scaleY = (float)image->origHeight() / origBitmap.height();
round_scaled(&srcR, srcRect, 1 / scaleX, 1 / scaleY);
} else
round(&srcR, srcRect);
// now extract the proper subset of the src image
SkBitmap bitmap;
if (!origBitmap.extractSubset(&bitmap, srcR)) {
SkDebugf("--- Image::drawPattern calling extractSubset failed\n");
return;
}
SkMatrix matrix(patternTransform);
if (imageIsSubSampled) {
matrix.preScale(SkFloatToScalar(scaleX), SkFloatToScalar(scaleY));
}
// We also need to translate it such that the origin of the pattern is the
// origin of the destination rect, which is what WebKit expects. Skia uses
// the coordinate system origin as the base for the patter. If WebKit wants
// a shifted image, it will shift it from there using the patternTransform.
float tx = phase.x() + srcRect.x() * patternTransform.a();
float ty = phase.y() + srcRect.y() * patternTransform.d();
matrix.postTranslate(SkFloatToScalar(tx), SkFloatToScalar(ty));
gc->platformContext()->drawBitmapPattern(bitmap, matrix, compositeOp, destRect);
}
void BitmapImage::draw(GraphicsContext* gc, const FloatRect& dstRect,
const FloatRect& srcRect, ColorSpace,
CompositeOperator compositeOp)
{
startAnimation();
SkBitmapRef* image = this->nativeImageForCurrentFrame();
if (!image) { // If it's too early we won't have an image yet.
return;
}
// in case we get called with an incomplete bitmap
const SkBitmap& bitmap = image->bitmap();
if (bitmap.getPixels() == NULL && bitmap.pixelRef() == NULL) {
#ifdef TRACE_SKIPPED_BITMAPS
SkDebugf("----- skip bitmapimage: [%d %d] pixels %p pixelref %p\n",
bitmap.width(), bitmap.height(),
bitmap.getPixels(), bitmap.pixelRef());
#endif
return;
}
SkIRect srcR;
SkRect dstR(dstRect);
float invScaleX = (float)bitmap.width() / image->origWidth();
float invScaleY = (float)bitmap.height() / image->origHeight();
round_scaled(&srcR, srcRect, invScaleX, invScaleY);
if (srcR.isEmpty() || dstR.isEmpty()) {
#ifdef TRACE_SKIPPED_BITMAPS
SkDebugf("----- skip bitmapimage: [%d %d] src-empty %d dst-empty %d\n",
bitmap.width(), bitmap.height(),
srcR.isEmpty(), dstR.isEmpty());
#endif
return;
}
gc->platformContext()->drawBitmapRect(bitmap, &srcR, dstR, compositeOp);
#ifdef TRACE_SUBSAMPLED_BITMAPS
if (bitmap.width() != image->origWidth() ||
bitmap.height() != image->origHeight()) {
SkDebugf("--- BitmapImage::draw [%d %d] orig [%d %d]\n",
bitmap.width(), bitmap.height(),
image->origWidth(), image->origHeight());
}
#endif
}