// missingImage, textAreaResizeCorner
PassRefPtr<Image> Image::loadPlatformResource(const char *name)
{
android::AssetManager* am = globalAssetManager();
SkString path("webkit/");
path.append(name);
path.append(".png");
android::Asset* a = am->open(path.c_str(),
android::Asset::ACCESS_BUFFER);
if (a == NULL) {
SkDebugf("---------------- failed to open image asset %s\n", name);
return NULL;
}
SkAutoTDelete<android::Asset> ad(a);
SkBitmap bm;
if (SkImageDecoder::DecodeMemory(a->getBuffer(false), a->getLength(), &bm)) {
SkBitmapRef* ref = new SkBitmapRef(bm);
// create will call ref(), so we need aur() to release ours upon return
SkAutoUnref aur(ref);
return BitmapImage::create(ref, 0);
}
return Image::nullImage();
}
virtual void onDraw(SkCanvas* canvas) {
this->drawBG(canvas);
SkMatrix saveM = *fMatrixRefs[3];
SkScalar c = SkIntToScalar(50);
fMatrixRefs[3]->preRotate(SkIntToScalar(30), c, c);
SkMatrix matrix;
SkGroupShape* gs = new SkGroupShape;
SkAutoUnref aur(gs);
gs->appendShape(&fGroup);
matrix.setScale(-SK_Scalar1, SK_Scalar1);
matrix.postTranslate(SkIntToScalar(220), SkIntToScalar(240));
gs->appendShape(&fGroup, matrix);
matrix.setTranslate(SkIntToScalar(240), 0);
matrix.preScale(SK_Scalar1*2, SK_Scalar1*2);
gs->appendShape(&fGroup, matrix);
#if 0
canvas->drawShape(gs);
#else
SkPicture pict;
SkCanvas* cv = pict.beginRecording(1000, 1000);
cv->scale(SK_ScalarHalf, SK_ScalarHalf);
cv->drawShape(gs);
cv->translate(SkIntToScalar(680), SkIntToScalar(480));
cv->scale(-SK_Scalar1, SK_Scalar1);
cv->drawShape(gs);
pict.endRecording();
canvas->drawPicture(pict);
#endif
*fMatrixRefs[3] = saveM;
}
virtual void onDraw(SkCanvas* canvas) {
this->drawBG(canvas);
SkMatrix matrix;
SkGroupShape* gs = new SkGroupShape;
SkAutoUnref aur(gs);
gs->appendShape(&fGroup);
matrix.setScale(-SK_Scalar1, SK_Scalar1);
matrix.postTranslate(SkIntToScalar(220), SkIntToScalar(240));
gs->appendShape(&fGroup, matrix);
matrix.setTranslate(SkIntToScalar(240), 0);
matrix.preScale(SK_Scalar1*2, SK_Scalar1*2);
gs->appendShape(&fGroup, matrix);
#if 1
SkPicture* pict = new SkPicture;
SkCanvas* cv = pict->beginRecording(1000, 1000);
cv->scale(SK_ScalarHalf, SK_ScalarHalf);
gs->draw(cv);
cv->translate(SkIntToScalar(680), SkIntToScalar(480));
cv->scale(-SK_Scalar1, SK_Scalar1);
gs->draw(cv);
pict->endRecording();
canvas->drawPicture(*pict);
pict->unref();
#endif
}
DEF_TEST(ColorFilter, reporter) {
SkRandom rand;
for (int mode = 0; mode <= SkXfermode::kLastMode; mode++) {
SkColor color = rand.nextU();
// ensure we always get a filter, by avoiding the possibility of a
// special case that would return NULL (if color's alpha is 0 or 0xFF)
color = SkColorSetA(color, 0x7F);
SkColorFilter* cf = SkColorFilter::CreateModeFilter(color,
(SkXfermode::Mode)mode);
// allow for no filter if we're in Dst mode (its a no op)
if (SkXfermode::kDst_Mode == mode && NULL == cf) {
continue;
}
SkAutoUnref aur(cf);
REPORTER_ASSERT(reporter, cf);
SkColor c = ~color;
SkXfermode::Mode m = ILLEGAL_MODE;
SkColor expectedColor = color;
SkXfermode::Mode expectedMode = (SkXfermode::Mode)mode;
// SkDebugf("--- mc [%d %x] ", mode, color);
REPORTER_ASSERT(reporter, cf->asColorMode(&c, &m));
// handle special-case folding by the factory
if (SkXfermode::kClear_Mode == mode) {
if (c != expectedColor) {
expectedColor = 0;
}
if (m != expectedMode) {
expectedMode = SkXfermode::kSrc_Mode;
}
}
// SkDebugf("--- got [%d %x] expected [%d %x]\n", m, c, expectedMode, expectedColor);
REPORTER_ASSERT(reporter, c == expectedColor);
REPORTER_ASSERT(reporter, m == expectedMode);
{
SkColorFilter* cf2 = reincarnate_colorfilter(cf);
SkAutoUnref aur2(cf2);
REPORTER_ASSERT(reporter, cf2);
SkColor c2 = ~color;
SkXfermode::Mode m2 = ILLEGAL_MODE;
REPORTER_ASSERT(reporter, cf2->asColorMode(&c2, &m2));
REPORTER_ASSERT(reporter, c2 == expectedColor);
REPORTER_ASSERT(reporter, m2 == expectedMode);
}
}
test_composecolorfilter_limit(reporter);
}
// Return the context associated with the next logical typeface, or NULL if
// there are no more entries in the fallback chain.
SkScalerContext* SkScalerContext::allocNextContext() const {
#ifdef SK_BUILD_FOR_ANDROID
SkTypeface* newFace = SkAndroidNextLogicalTypeface(fRec.fFontID,
fRec.fOrigFontID,
fPaintOptionsAndroid);
if (0 == newFace) {
return NULL;
}
SkAutoTUnref<SkTypeface> aur(newFace);
uint32_t newFontID = newFace->uniqueID();
SkOrderedWriteBuffer androidBuffer(128);
fPaintOptionsAndroid.flatten(androidBuffer);
SkAutoDescriptor ad(sizeof(fRec) + androidBuffer.size() + SkDescriptor::ComputeOverhead(2));
SkDescriptor* desc = ad.getDesc();
desc->init();
SkScalerContext::Rec* newRec =
(SkScalerContext::Rec*)desc->addEntry(kRec_SkDescriptorTag,
sizeof(fRec), &fRec);
androidBuffer.writeToMemory(desc->addEntry(kAndroidOpts_SkDescriptorTag,
androidBuffer.size(), NULL));
newRec->fFontID = newFontID;
desc->computeChecksum();
return newFace->createScalerContext(desc);
#else
return NULL;
#endif
}
// CAPPFIX_WEB_WOFF
FontCustomPlatformData* createFontCustomPlatformData(SharedBuffer* buffer, bool woffEnabled)
{
RefPtr<SharedBuffer> sfntBuffer;
if (woffEnabled && isWOFF(buffer)) {
Vector<char> sfnt;
if (!convertWOFFToSfnt(buffer, sfnt))
return 0;
sfntBuffer = SharedBuffer::adoptVector(sfnt);
buffer = sfntBuffer.get();
}
// pass true until we know how we can share the data, and not have to
// make a copy of it.
SkStream* stream = new SkMemoryStream(buffer->data(), buffer->size(), true);
SkTypeface* face = SkTypeface::CreateFromStream(stream);
// Release the stream.
stream->unref();
if (0 == face) {
SkDebugf("--------- SkTypeface::CreateFromBuffer failed %d\n",
buffer->size());
return NULL;
}
SkAutoUnref aur(face);
return new FontCustomPlatformData(face);
}
static void TestBitmapHeap(skiatest::Reporter* reporter) {
// Create a bitmap shader.
SkBitmap bm;
bm.setConfig(SkBitmap::kARGB_8888_Config, 2, 2);
bm.allocPixels();
bm.eraseColor(SK_ColorRED);
uint32_t* pixel = bm.getAddr32(1,0);
*pixel = SK_ColorBLUE;
SkShader* bitmapShader = SkShader::CreateBitmapShader(bm, SkShader::kRepeat_TileMode,
SkShader::kRepeat_TileMode);
SkAutoTUnref<SkShader> aur(bitmapShader);
// Flatten, storing it in the bitmap heap.
SkBitmapHeap heap(1, 1);
SkChunkFlatController controller(1024);
controller.setBitmapStorage(&heap);
FlatDictionary dictionary(&controller);
// Dictionary and heap start off empty.
REPORTER_ASSERT(reporter, heap.count() == 0);
REPORTER_ASSERT(reporter, dictionary.count() == 0);
heap.deferAddingOwners();
int index = dictionary.find(*bitmapShader);
heap.endAddingOwnersDeferral(true);
// The dictionary and heap should now each have one entry.
REPORTER_ASSERT(reporter, 1 == index);
REPORTER_ASSERT(reporter, heap.count() == 1);
REPORTER_ASSERT(reporter, dictionary.count() == 1);
// The bitmap entry's refcount should be 1, then 0 after release.
SkBitmapHeapEntry* entry = heap.getEntry(0);
REPORTER_ASSERT(reporter, SkBitmapHeapTester::GetRefCount(entry) == 1);
entry->releaseRef();
REPORTER_ASSERT(reporter, SkBitmapHeapTester::GetRefCount(entry) == 0);
// Now clear out the heap, after which it should be empty.
heap.freeMemoryIfPossible(~0U);
REPORTER_ASSERT(reporter, heap.count() == 0);
// Now attempt to flatten the shader again.
heap.deferAddingOwners();
index = dictionary.find(*bitmapShader);
heap.endAddingOwnersDeferral(false);
// The dictionary should report the same index since the new entry is identical.
// The bitmap heap should contain the bitmap, but with no references.
REPORTER_ASSERT(reporter, 1 == index);
REPORTER_ASSERT(reporter, heap.count() == 1);
REPORTER_ASSERT(reporter, SkBitmapHeapTester::GetRefCount(heap.getEntry(0)) == 0);
}
static SkBitmap load_bitmap() {
SkStream* stream = new SkFILEStream("/skimages/sesame_street_ensemble-hp.jpg");
SkAutoUnref aur(stream);
SkBitmap bm;
if (SkImageDecoder::DecodeStream(stream, &bm, SkBitmap::kNo_Config,
SkImageDecoder::kDecodeBounds_Mode)) {
SkPixelRef* pr = new SkImageRef_GlobalPool(stream, bm.config(), 1);
bm.setPixelRef(pr)->unref();
}
return bm;
}
BitmapGlue*
BitmapFactoryGlue::decodeByteArray(const NativeArray<uint8_t>& data, int offset, int length, Options& options)
{
/* If optionsShareable() we could decide to just wrap the java array and
share it, but that means adding a globalref to the java array object
and managing its lifetime. For now we just always copy the array's data
if optionsPurgeable(), unless we're just decoding bounds.
*/
bool purgeable = options.isPurgeable && !options.justDecodeBounds;
SkStream* stream = new SkMemoryStream(data.ptr(offset,length), length, purgeable);
SkAutoUnref aur(stream);
return doDecode(stream, options, purgeable);
}
void paintSkiaText(GraphicsContext* context,
HFONT hfont,
int numGlyphs,
const WORD* glyphs,
const int* advances,
const GOFFSET* offsets,
const SkPoint* origin)
{
int size;
int quality;
SkTypeface* face = CreateTypefaceFromHFont(hfont, &size, &quality);
SkAutoUnref aur(face);
paintSkiaText(context, hfont, face, size, quality, numGlyphs, glyphs, advances, offsets, origin);
}
void paintSkiaText(GraphicsContext* context,
HFONT hfont,
int numGlyphs,
const WORD* glyphs,
const int* advances,
const GOFFSET* offsets,
const SkPoint& origin,
const SkRect& textRect)
{
int size;
int paintTextFlags;
SkTypeface* face = CreateTypefaceFromHFont(hfont, &size, &paintTextFlags);
SkAutoUnref aur(face);
paintSkiaText(context, hfont, face, size, paintTextFlags, numGlyphs, glyphs, advances, offsets, origin, textRect);
}
virtual void onDrawContent(SkCanvas* canvas) {
drawSomething(canvas);
SkPicture* pict = new SkPicture;
SkAutoUnref aur(pict);
drawSomething(pict->beginRecording(100, 100));
pict->endRecording();
canvas->save();
canvas->translate(SkIntToScalar(300), SkIntToScalar(50));
canvas->scale(-SK_Scalar1, -SK_Scalar1);
canvas->translate(-SkIntToScalar(100), -SkIntToScalar(50));
canvas->drawPicture(*pict);
canvas->restore();
canvas->save();
canvas->translate(SkIntToScalar(200), SkIntToScalar(150));
canvas->scale(SK_Scalar1, -SK_Scalar1);
canvas->translate(0, -SkIntToScalar(50));
canvas->drawPicture(*pict);
canvas->restore();
canvas->save();
canvas->translate(SkIntToScalar(100), SkIntToScalar(100));
canvas->scale(-SK_Scalar1, SK_Scalar1);
canvas->translate(-SkIntToScalar(100), 0);
canvas->drawPicture(*pict);
canvas->restore();
#ifdef SK_DEVELOPER
if (false) {
SkDebugfDumper dumper;
SkDumpCanvas dumpCanvas(&dumper);
dumpCanvas.drawPicture(*pict);
}
#endif
// test that we can re-record a subpicture, and see the results
SkMWCRandom rand(SampleCode::GetAnimTime());
canvas->translate(SkIntToScalar(10), SkIntToScalar(250));
drawCircle(fSubPicture->beginRecording(50, 50), 25,
rand.nextU() | 0xFF000000);
canvas->drawPicture(*fPicture);
delayInval(500);
}
virtual void onDrawContent(SkCanvas* canvas) {
SkScalar angle = SampleCode::GetAnimScalar(SkIntToScalar(180),
SkIntToScalar(360));
SkMatrix saveM = *fMatrixRefs[3];
SkScalar c = SkIntToScalar(50);
fMatrixRefs[3]->preRotate(angle, c, c);
const SkScalar dx = 350;
const SkScalar dy = 500;
const int N = 1;
for (int v = -N; v <= N; v++) {
for (int h = -N; h <= N; h++) {
SkAutoCanvasRestore acr(canvas, true);
canvas->translate(h * dx, v * dy);
SkMatrix matrix;
SkGroupShape* gs = new SkGroupShape;
SkAutoUnref aur(gs);
gs->appendShape(&fGroup);
matrix.setScale(-SK_Scalar1, SK_Scalar1);
matrix.postTranslate(SkIntToScalar(220), SkIntToScalar(240));
gs->appendShape(&fGroup, matrix);
matrix.setTranslate(SkIntToScalar(240), 0);
matrix.preScale(SK_Scalar1*2, SK_Scalar1*2);
gs->appendShape(&fGroup, matrix);
#if 1
SkPicture* pict = new SkPicture;
SkCanvas* cv = pict->beginRecording(1000, 1000);
cv->scale(SK_ScalarHalf, SK_ScalarHalf);
gs->draw(cv);
cv->translate(SkIntToScalar(680), SkIntToScalar(480));
cv->scale(-SK_Scalar1, SK_Scalar1);
gs->draw(cv);
pict->endRecording();
drawpicture(canvas, *pict);
pict->unref();
#endif
}}
*fMatrixRefs[3] = saveM;
this->inval(NULL);
}
FontCustomPlatformData* createFontCustomPlatformData(SharedBuffer* buffer)
{
// pass true until we know how we can share the data, and not have to
// make a copy of it.
SkStream* stream = new SkMemoryStream(buffer->data(), buffer->size(), true);
SkTypeface* face = SkTypeface::CreateFromStream(stream);
// Release the stream.
stream->unref();
if (0 == face) {
SkDebugf("--------- SkTypeface::CreateFromBuffer failed %d\n",
buffer->size());
return NULL;
}
SkAutoUnref aur(face);
return new FontCustomPlatformData(face);
}
BitmapGlue*
BitmapFactoryGlue::nativeDecodeAsset(Asset& asset, SkIRect padding, Options& options)
{
SkStream* stream;
bool forcePurgeable = options.isPurgeable;
if (forcePurgeable) {
// if we could "ref/reopen" the asset, we may not need to copy it here
// and we could assume optionsShareable, since assets are always RO
stream = copyAssetToStream(asset);
if (NULL == stream) {
return NULL;
}
} else {
// since we know we'll be done with the asset when we return, we can
// just use a simple wrapper
stream = new AssetStreamAdaptor(asset);
}
SkAutoUnref aur(stream);
return doDecode(stream, options, true, forcePurgeable);
}
static void Tests(skiatest::Reporter* reporter) {
// Test flattening SkShader
SkPoint points[2];
points[0].set(0, 0);
points[1].set(SkIntToScalar(20), SkIntToScalar(20));
SkColor colors[2];
colors[0] = SK_ColorRED;
colors[1] = SK_ColorBLUE;
SkShader* shader = SkGradientShader::CreateLinear(points, colors, NULL,
2, SkShader::kRepeat_TileMode);
SkAutoUnref aur(shader);
testCreate(reporter, shader, flattenFlattenableProc);
// Test SkBitmap
{
SkBitmap bm;
bm.setConfig(SkBitmap::kARGB_8888_Config, 50, 50);
bm.allocPixels();
SkCanvas canvas(bm);
SkPaint paint;
paint.setShader(shader);
canvas.drawPaint(paint);
testCreate(reporter, &bm, &SkFlattenObjectProc<SkBitmap>);
}
// Test SkColorFilter
SkColorFilter* cf = SkColorFilter::CreateLightingFilter(SK_ColorBLUE,
SK_ColorRED);
SkAutoUnref aurcf(cf);
testCreate(reporter, cf, &flattenFlattenableProc);
// Test SkXfermode
SkXfermode* xfer = SkXfermode::Create(SkXfermode::kDstOver_Mode);
SkAutoUnref aurxf(xfer);
testCreate(reporter, xfer, &flattenFlattenableProc);
}
static int fileline(
scm *scmp,
scmcon *conp,
FILE *s)
{
char ptr[1024];
char *valu;
char c;
int done = 0;
int sta = 0;
for (done = 0; !done;)
{
if (fgets(ptr, 1023, s) == NULL)
break;
char *cp;
for (cp = ptr; *cp >= ' '; cp++);
*cp = 0; // trim off CR/LF
LOG(LOG_DEBUG, "Sockline: %s", ptr);
c = ptr[0];
if (!isspace((int)(unsigned char)(ptr[1])))
{
LOG(LOG_ERR, "Invalid line: ignored");
continue;
}
valu = afterwhite(ptr + 1);
switch (c)
{
case 'b': /* begin */
case 'B':
LOG(LOG_INFO, "AUR beginning at %s", valu);
break;
case 'e':
case 'E': /* end */
LOG(LOG_INFO, "AUR ending at %s", valu);
done = 1;
break;
case 'c':
case 'C': /* cd */
if (hdir != NULL)
{
free((void *)hdir);
hdir = NULL;
}
hdir = strdup(valu);
break;
case 'a':
case 'A': /* add */
LOG(LOG_INFO, "AUR add request: %s", valu);
sta = aur(scmp, conp, 'a', valu);
if (sta < 0)
LOG(LOG_ERR, "Status was %d (%s)", sta, err2string(sta));
else
LOG(LOG_DEBUG, "Status was %d", sta);
break;
case 'u':
case 'U': /* update */
LOG(LOG_INFO, "AUR update request: %s", valu);
sta = aur(scmp, conp, 'u', valu);
if (sta < 0)
LOG(LOG_ERR, "Status was %d (%s)", sta, err2string(sta));
else
LOG(LOG_DEBUG, "Status was %d", sta);
break;
case 'r':
case 'R': /* remove */
LOG(LOG_INFO, "AUR remove request: %s", valu);
sta = aur(scmp, conp, 'r', valu);
if (sta < 0)
LOG(LOG_ERR, "Status was %d (%s)", sta, err2string(sta));
else
LOG(LOG_DEBUG, "Status was %d", sta);
break;
case 'l':
case 'L': /* link */
LOG(LOG_INFO, "AUR link request: %s", valu);
break;
case 'f':
case 'F': /* fatal error */
LOG(LOG_ERR, "AUR fatal error: %s", valu);
done = -1;
break;
case 'x':
case 'X': /* error */
LOG(LOG_ERR, "AUR error: %s", valu);
break;
case 'w':
case 'W': /* warning */
LOG(LOG_WARNING, "AUR warning: %s", valu);
break;
case 'i':
case 'I': /* information */
LOG(LOG_INFO, "AUR message: %s", valu);
break;
case 's':
case 'S': /* save */
(void)saveState(conp, scmp);
break;
case 'v':
case 'V': /* restore */
(void)restoreState(conp, scmp);
break;
case 'y':
case 'Y': /* synchronize */
break;
case 0:
break;
default:
LOG(LOG_INFO, "AUR invalid tag '%c' ignored", c);
break;
}
}
return (sta);
}
bool SkPNGImageDecoder::onDecode(SkStream* sk_stream, SkBitmap* decodedBitmap,
SkBitmap::Config prefConfig, Mode mode) {
// SkAutoTrace apr("SkPNGImageDecoder::onDecode");
/* Create and initialize the png_struct with the desired error handler
* functions. If you want to use the default stderr and longjump method,
* you can supply NULL for the last three parameters. We also supply the
* the compiler header file version, so that we know if the application
* was compiled with a compatible version of the library. */
png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
NULL, sk_error_fn, NULL);
// png_voidp user_error_ptr, user_error_fn, user_warning_fn);
if (png_ptr == NULL) {
return false;
}
/* Allocate/initialize the memory for image information. */
png_infop info_ptr = png_create_info_struct(png_ptr);
if (info_ptr == NULL) {
png_destroy_read_struct(&png_ptr, png_infopp_NULL, png_infopp_NULL);
return false;
}
PNGAutoClean autoClean(png_ptr, info_ptr);
/* Set error handling if you are using the setjmp/longjmp method (this is
* the normal method of doing things with libpng). REQUIRED unless you
* set up your own error handlers in the png_create_read_struct() earlier.
*/
if (setjmp(png_jmpbuf(png_ptr))) {
return false;
}
/* If you are using replacement read functions, instead of calling
* png_init_io() here you would call:
*/
png_set_read_fn(png_ptr, (void *)sk_stream, sk_read_fn);
/* where user_io_ptr is a structure you want available to the callbacks */
/* If we have already read some of the signature */
// png_set_sig_bytes(png_ptr, 0 /* sig_read */ );
// hookup our peeker so we can see any user-chunks the caller may be interested in
png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_ALWAYS, (png_byte*)"", 0);
if (this->getPeeker()) {
png_set_read_user_chunk_fn(png_ptr, (png_voidp)this->getPeeker(), sk_read_user_chunk);
}
/* The call to png_read_info() gives us all of the information from the
* PNG file before the first IDAT (image data chunk). */
png_read_info(png_ptr, info_ptr);
png_uint_32 origWidth, origHeight;
int bit_depth, color_type, interlace_type;
png_get_IHDR(png_ptr, info_ptr, &origWidth, &origHeight, &bit_depth, &color_type,
&interlace_type, int_p_NULL, int_p_NULL);
SkBitmap::Config config;
bool hasAlpha = false;
bool doDither = this->getDitherImage();
// check for sBIT chunk data, in case we should disable dithering because
// our data is not truely 8bits per component
if (doDither) {
#if 0
SkDebugf("----- sBIT %d %d %d %d\n", info_ptr->sig_bit.red,
info_ptr->sig_bit.green, info_ptr->sig_bit.blue,
info_ptr->sig_bit.alpha);
#endif
// 0 seems to indicate no information available
if (pos_le(info_ptr->sig_bit.red, SK_R16_BITS) &&
pos_le(info_ptr->sig_bit.green, SK_G16_BITS) &&
pos_le(info_ptr->sig_bit.blue, SK_B16_BITS)) {
doDither = false;
}
}
if (color_type == PNG_COLOR_TYPE_PALETTE) {
config = SkBitmap::kIndex8_Config; // defer sniffing for hasAlpha
} else {
png_color_16p transColor;
png_get_tRNS(png_ptr, info_ptr, NULL, NULL, &transColor);
if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) ||
PNG_COLOR_TYPE_RGB_ALPHA == color_type ||
PNG_COLOR_TYPE_GRAY_ALPHA == color_type) {
hasAlpha = true;
config = SkBitmap::kARGB_8888_Config;
} else { // we get to choose the config
config = prefConfig;
if (config == SkBitmap::kNo_Config) {
config = SkImageDecoder::GetDeviceConfig();
}
if (config != SkBitmap::kRGB_565_Config &&
config != SkBitmap::kARGB_4444_Config) {
config = SkBitmap::kARGB_8888_Config;
}
}
}
if (!this->chooseFromOneChoice(config, origWidth, origHeight)) {
return false;
}
const int sampleSize = this->getSampleSize();
SkScaledBitmapSampler sampler(origWidth, origHeight, sampleSize);
decodedBitmap->setConfig(config, sampler.scaledWidth(),
sampler.scaledHeight(), 0);
if (SkImageDecoder::kDecodeBounds_Mode == mode) {
return true;
}
// from here down we are concerned with colortables and pixels
/* tell libpng to strip 16 bit/color files down to 8 bits/color */
if (bit_depth == 16) {
png_set_strip_16(png_ptr);
}
/* Extract multiple pixels with bit depths of 1, 2, and 4 from a single
* byte into separate bytes (useful for paletted and grayscale images). */
if (bit_depth < 8) {
png_set_packing(png_ptr);
}
/* Expand grayscale images to the full 8 bits from 1, 2, or 4 bits/pixel */
if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) {
png_set_gray_1_2_4_to_8(png_ptr);
}
/* Make a grayscale image into RGB. */
if (color_type == PNG_COLOR_TYPE_GRAY ||
color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
png_set_gray_to_rgb(png_ptr);
}
// we track if we actually see a non-opaque pixels, since sometimes a PNG sets its colortype
// to |= PNG_COLOR_MASK_ALPHA, but all of its pixels are in fact opaque. We care, since we
// draw lots faster if we can flag the bitmap has being opaque
bool reallyHasAlpha = false;
SkColorTable* colorTable = NULL;
if (color_type == PNG_COLOR_TYPE_PALETTE) {
int num_palette;
png_colorp palette;
png_bytep trans;
int num_trans;
png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette);
/* BUGGY IMAGE WORKAROUND
We hit some images (e.g. fruit_.png) who contain bytes that are == colortable_count
which is a problem since we use the byte as an index. To work around this we grow
the colortable by 1 (if its < 256) and duplicate the last color into that slot.
*/
int colorCount = num_palette + (num_palette < 256);
colorTable = SkNEW_ARGS(SkColorTable, (colorCount));
SkPMColor* colorPtr = colorTable->lockColors();
if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) {
png_get_tRNS(png_ptr, info_ptr, &trans, &num_trans, NULL);
hasAlpha = (num_trans > 0);
} else {
num_trans = 0;
colorTable->setFlags(colorTable->getFlags() | SkColorTable::kColorsAreOpaque_Flag);
}
// check for bad images that might make us crash
if (num_trans > num_palette) {
num_trans = num_palette;
}
int index = 0;
int transLessThanFF = 0;
for (; index < num_trans; index++) {
transLessThanFF |= (int)*trans - 0xFF;
*colorPtr++ = SkPreMultiplyARGB(*trans++, palette->red, palette->green, palette->blue);
palette++;
}
reallyHasAlpha |= (transLessThanFF < 0);
for (; index < num_palette; index++) {
*colorPtr++ = SkPackARGB32(0xFF, palette->red, palette->green, palette->blue);
palette++;
}
// see BUGGY IMAGE WORKAROUND comment above
if (num_palette < 256) {
*colorPtr = colorPtr[-1];
}
colorTable->unlockColors(true);
}
SkAutoUnref aur(colorTable);
if (!this->allocPixelRef(decodedBitmap, colorTable)) {
delete colorTable;
return false;
}
SkAutoLockPixels alp(*decodedBitmap);
/* swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */
// if (color_type == PNG_COLOR_TYPE_RGB_ALPHA)
// ; // png_set_swap_alpha(png_ptr);
/* swap bytes of 16 bit files to least significant byte first */
// png_set_swap(png_ptr);
/* Add filler (or alpha) byte (before/after each RGB triplet) */
if (color_type == PNG_COLOR_TYPE_RGB || color_type == PNG_COLOR_TYPE_GRAY) {
png_set_filler(png_ptr, 0xff, PNG_FILLER_AFTER);
}
/* Turn on interlace handling. REQUIRED if you are not using
* png_read_image(). To see how to handle interlacing passes,
* see the png_read_row() method below:
*/
const int number_passes = interlace_type != PNG_INTERLACE_NONE ?
png_set_interlace_handling(png_ptr) : 1;
/* Optional call to gamma correct and add the background to the palette
* and update info structure. REQUIRED if you are expecting libpng to
* update the palette for you (ie you selected such a transform above).
*/
png_read_update_info(png_ptr, info_ptr);
if (SkBitmap::kIndex8_Config == config && 1 == sampleSize) {
for (int i = 0; i < number_passes; i++) {
for (png_uint_32 y = 0; y < origHeight; y++) {
uint8_t* bmRow = decodedBitmap->getAddr8(0, y);
png_read_rows(png_ptr, &bmRow, png_bytepp_NULL, 1);
}
}
} else {
SkScaledBitmapSampler::SrcConfig sc;
int srcBytesPerPixel = 4;
if (SkBitmap::kIndex8_Config == config) {
sc = SkScaledBitmapSampler::kIndex;
srcBytesPerPixel = 1;
} else if (hasAlpha) {
sc = SkScaledBitmapSampler::kRGBA;
} else {
sc = SkScaledBitmapSampler::kRGBX;
}
SkAutoMalloc storage(origWidth * srcBytesPerPixel);
const int height = decodedBitmap->height();
for (int i = 0; i < number_passes; i++) {
if (!sampler.begin(decodedBitmap, sc, doDither)) {
return false;
}
uint8_t* srcRow = (uint8_t*)storage.get();
skip_src_rows(png_ptr, srcRow, sampler.srcY0());
for (int y = 0; y < height; y++) {
uint8_t* tmp = srcRow;
png_read_rows(png_ptr, &tmp, png_bytepp_NULL, 1);
reallyHasAlpha |= sampler.next(srcRow);
if (y < height - 1) {
skip_src_rows(png_ptr, srcRow, sampler.srcDY() - 1);
}
}
// skip the rest of the rows (if any)
png_uint_32 read = (height - 1) * sampler.srcDY() +
sampler.srcY0() + 1;
SkASSERT(read <= origHeight);
skip_src_rows(png_ptr, srcRow, origHeight - read);
}
if (hasAlpha && !reallyHasAlpha) {
SkDEBUGF(("Image doesn't really have alpha [%d %d]\n",
origWidth, origHeight));
}
}
/* read rest of file, and get additional chunks in info_ptr - REQUIRED */
png_read_end(png_ptr, info_ptr);
decodedBitmap->setIsOpaque(!reallyHasAlpha);
return true;
}
static SkImageFilter* make2() {
SkColorFilter* cf = SkColorFilter::CreateModeFilter(SK_ColorBLUE,
SkXfermode::kSrcIn_Mode);
SkAutoUnref aur(cf);
return SkColorFilterImageFilter::Create(cf);
}
// Stripped down version of TestBitmapCopy that checks basic fields (width, height, config, genID)
// to ensure that they were copied properly.
static void TestGpuBitmapCopy(skiatest::Reporter* reporter, GrContextFactory* factory) {
#ifdef SK_BUILD_FOR_ANDROID // https://code.google.com/p/skia/issues/detail?id=753
return;
#endif
for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) {
GrContextFactory::GLContextType glType = static_cast<GrContextFactory::GLContextType>(type);
if (!GrContextFactory::IsRenderingGLContext(glType)) {
continue;
}
GrContext* grContext = factory->get(glType);
if (NULL == grContext) {
continue;
}
if (NULL == grContext) {
return;
}
static const Pair gPairs[] = {
{ SkBitmap::kNo_Config, "000" },
{ SkBitmap::kARGB_4444_Config, "011" },
{ SkBitmap::kARGB_8888_Config, "011" },
};
const int W = 20;
const int H = 33;
for (size_t i = 0; i < SK_ARRAY_COUNT(gPairs); i++) {
SkBitmap src, dst;
SkGpuDevice* device = SkNEW_ARGS(SkGpuDevice, (grContext, gPairs[i].fConfig, W, H));
SkAutoUnref aur(device);
src = device->accessBitmap(false);
device->clear(SK_ColorWHITE);
// Draw something different to the same portion of the bitmap that we will extract as a
// subset, so that comparing the pixels of the subset will be meaningful.
SkIRect subsetRect = SkIRect::MakeLTRB(W/2, H/2, W, H);
SkCanvas drawingCanvas(device);
SkPaint paint;
paint.setColor(SK_ColorRED);
drawingCanvas.drawRect(SkRect::MakeFromIRect(subsetRect), paint);
// Extract a subset. If this succeeds we will test copying the subset.
SkBitmap subset;
const bool extracted = src.extractSubset(&subset, subsetRect);
for (size_t j = 0; j < SK_ARRAY_COUNT(gPairs); j++) {
dst.reset();
bool success = src.deepCopyTo(&dst, gPairs[j].fConfig);
bool expected = gPairs[i].fValid[j] != '0';
if (success != expected) {
SkString str;
str.printf("SkBitmap::deepCopyTo from %s to %s. expected %s returned %s",
gConfigName[i], gConfigName[j], boolStr(expected),
boolStr(success));
reporter->reportFailed(str);
}
bool canSucceed = src.canCopyTo(gPairs[j].fConfig);
if (success != canSucceed) {
SkString str;
str.printf("SkBitmap::deepCopyTo from %s to %s returned %s,"
"but canCopyTo returned %s",
gConfigName[i], gConfigName[j], boolStr(success),
boolStr(canSucceed));
reporter->reportFailed(str);
}
TestIndividualCopy(reporter, gPairs[j].fConfig, success, src, dst);
// Test copying the subset bitmap, using both copyTo and deepCopyTo.
if (extracted) {
SkBitmap subsetCopy;
success = subset.copyTo(&subsetCopy, gPairs[j].fConfig);
REPORTER_ASSERT(reporter, success == expected);
REPORTER_ASSERT(reporter, success == canSucceed);
TestIndividualCopy(reporter, gPairs[j].fConfig, success, subset, subsetCopy,
false);
// Reset the bitmap so that a failed copyTo will leave it in the expected state.
subsetCopy.reset();
success = subset.deepCopyTo(&subsetCopy, gPairs[j].fConfig);
REPORTER_ASSERT(reporter, success == expected);
REPORTER_ASSERT(reporter, success == canSucceed);
TestIndividualCopy(reporter, gPairs[j].fConfig, success, subset, subsetCopy,
true);
}
} // for (size_t j = ...
} // for (size_t i = ...
} // GrContextFactory::GLContextType
}
bool SkPNGImageDecoder::onDecode(SkStream* sk_stream, SkBitmap* decodedBitmap,
Mode mode) {
png_structp png_ptr;
png_infop info_ptr;
if (onDecodeInit(sk_stream, &png_ptr, &info_ptr) == false) {
return false;
}
if (setjmp(png_jmpbuf(png_ptr))) {
return false;
}
PNGAutoClean autoClean(png_ptr, info_ptr);
png_uint_32 origWidth, origHeight;
int bit_depth, color_type, interlace_type;
png_get_IHDR(png_ptr, info_ptr, &origWidth, &origHeight, &bit_depth,
&color_type, &interlace_type, int_p_NULL, int_p_NULL);
SkBitmap::Config config;
bool hasAlpha = false;
bool doDither = this->getDitherImage();
SkPMColor theTranspColor = 0; // 0 tells us not to try to match
if (getBitmapConfig(png_ptr, info_ptr, &config, &hasAlpha,
&doDither, &theTranspColor) == false) {
return false;
}
const int sampleSize = this->getSampleSize();
SkScaledBitmapSampler sampler(origWidth, origHeight, sampleSize);
decodedBitmap->setConfig(config, sampler.scaledWidth(),
sampler.scaledHeight(), 0);
if (SkImageDecoder::kDecodeBounds_Mode == mode) {
return true;
}
// from here down we are concerned with colortables and pixels
// we track if we actually see a non-opaque pixels, since sometimes a PNG sets its colortype
// to |= PNG_COLOR_MASK_ALPHA, but all of its pixels are in fact opaque. We care, since we
// draw lots faster if we can flag the bitmap has being opaque
bool reallyHasAlpha = false;
SkColorTable* colorTable = NULL;
if (color_type == PNG_COLOR_TYPE_PALETTE) {
decodePalette(png_ptr, info_ptr, &hasAlpha,
&reallyHasAlpha, &colorTable);
}
SkAutoUnref aur(colorTable);
if (!this->allocPixelRef(decodedBitmap,
SkBitmap::kIndex8_Config == config ?
colorTable : NULL)) {
return false;
}
SkAutoLockPixels alp(*decodedBitmap);
/* Add filler (or alpha) byte (before/after each RGB triplet) */
if (color_type == PNG_COLOR_TYPE_RGB || color_type == PNG_COLOR_TYPE_GRAY) {
png_set_filler(png_ptr, 0xff, PNG_FILLER_AFTER);
}
/* Turn on interlace handling. REQUIRED if you are not using
* png_read_image(). To see how to handle interlacing passes,
* see the png_read_row() method below:
*/
const int number_passes = interlace_type != PNG_INTERLACE_NONE ?
png_set_interlace_handling(png_ptr) : 1;
/* Optional call to gamma correct and add the background to the palette
* and update info structure. REQUIRED if you are expecting libpng to
* update the palette for you (ie you selected such a transform above).
*/
png_read_update_info(png_ptr, info_ptr);
if (SkBitmap::kIndex8_Config == config && 1 == sampleSize) {
for (int i = 0; i < number_passes; i++) {
for (png_uint_32 y = 0; y < origHeight; y++) {
uint8_t* bmRow = decodedBitmap->getAddr8(0, y);
png_read_rows(png_ptr, &bmRow, png_bytepp_NULL, 1);
}
}
} else {
SkScaledBitmapSampler::SrcConfig sc;
int srcBytesPerPixel = 4;
if (colorTable != NULL) {
sc = SkScaledBitmapSampler::kIndex;
srcBytesPerPixel = 1;
} else if (hasAlpha) {
sc = SkScaledBitmapSampler::kRGBA;
} else {
sc = SkScaledBitmapSampler::kRGBX;
}
/* We have to pass the colortable explicitly, since we may have one
even if our decodedBitmap doesn't, due to the request that we
upscale png's palette to a direct model
*/
SkAutoLockColors ctLock(colorTable);
if (!sampler.begin(decodedBitmap, sc, doDither, ctLock.colors())) {
return false;
}
const int height = decodedBitmap->height();
if (number_passes > 1) {
SkAutoMalloc storage(origWidth * origHeight * srcBytesPerPixel);
uint8_t* base = (uint8_t*)storage.get();
size_t rb = origWidth * srcBytesPerPixel;
for (int i = 0; i < number_passes; i++) {
uint8_t* row = base;
for (png_uint_32 y = 0; y < origHeight; y++) {
uint8_t* bmRow = row;
png_read_rows(png_ptr, &bmRow, png_bytepp_NULL, 1);
row += rb;
}
}
// now sample it
base += sampler.srcY0() * rb;
for (int y = 0; y < height; y++) {
reallyHasAlpha |= sampler.next(base);
base += sampler.srcDY() * rb;
}
} else {
SkAutoMalloc storage(origWidth * srcBytesPerPixel);
uint8_t* srcRow = (uint8_t*)storage.get();
skip_src_rows(png_ptr, srcRow, sampler.srcY0());
for (int y = 0; y < height; y++) {
uint8_t* tmp = srcRow;
png_read_rows(png_ptr, &tmp, png_bytepp_NULL, 1);
reallyHasAlpha |= sampler.next(srcRow);
if (y < height - 1) {
skip_src_rows(png_ptr, srcRow, sampler.srcDY() - 1);
}
}
// skip the rest of the rows (if any)
png_uint_32 read = (height - 1) * sampler.srcDY() +
sampler.srcY0() + 1;
SkASSERT(read <= origHeight);
skip_src_rows(png_ptr, srcRow, origHeight - read);
}
}
/* read rest of file, and get additional chunks in info_ptr - REQUIRED */
png_read_end(png_ptr, info_ptr);
if (0 != theTranspColor) {
reallyHasAlpha |= substituteTranspColor(decodedBitmap, theTranspColor);
}
decodedBitmap->setIsOpaque(!reallyHasAlpha);
return true;
}
void GraphicsContext::setPlatformShadow(const FloatSize& size,
float blurFloat,
const Color& color,
ColorSpace colorSpace)
{
if (paintingDisabled())
return;
// Detect when there's no effective shadow and clear the looper.
if (!size.width() && !size.height() && !blurFloat) {
platformContext()->setDrawLooper(0);
return;
}
double width = size.width();
double height = size.height();
double blur = blurFloat;
uint32_t mfFlags = SkBlurMaskFilter::kHighQuality_BlurFlag;
SkXfermode::Mode colorMode = SkXfermode::kSrc_Mode;
if (m_state.shadowsIgnoreTransforms) {
// Currently only the GraphicsContext associated with the
// CanvasRenderingContext for HTMLCanvasElement have shadows ignore
// Transforms. So with this flag set, we know this state is associated
// with a CanvasRenderingContext.
mfFlags |= SkBlurMaskFilter::kIgnoreTransform_BlurFlag;
// CSS wants us to ignore the original's alpha, but Canvas wants us to
// modulate with it. Using shadowsIgnoreTransforms to tell us that we're
// in a Canvas, we change the colormode to kDst_Mode, so we don't overwrite
// it with our layer's (default opaque-black) color.
colorMode = SkXfermode::kDst_Mode;
// CG uses natural orientation for Y axis, but the HTML5 canvas spec
// does not.
// So we now flip the height since it was flipped in
// CanvasRenderingContext in order to work with CG.
height = -height;
}
SkColor c;
if (color.isValid())
c = color.rgb();
else
c = SkColorSetARGB(0xFF/3, 0, 0, 0); // "std" apple shadow color.
// TODO(tc): Should we have a max value for the blur? CG clamps at 1000.0
// for perf reasons.
SkLayerDrawLooper* dl = new SkLayerDrawLooper;
SkAutoUnref aur(dl);
// top layer, we just draw unchanged
dl->addLayer();
// lower layer contains our offset, blur, and colorfilter
SkLayerDrawLooper::LayerInfo info;
info.fPaintBits |= SkLayerDrawLooper::kMaskFilter_Bit; // our blur
info.fPaintBits |= SkLayerDrawLooper::kColorFilter_Bit;
info.fColorMode = colorMode;
info.fOffset.set(width, height);
info.fPostTranslate = m_state.shadowsIgnoreTransforms;
SkMaskFilter* mf = SkBlurMaskFilter::Create(blur / 2, SkBlurMaskFilter::kNormal_BlurStyle, mfFlags);
SkColorFilter* cf = SkColorFilter::CreateModeFilter(c, SkXfermode::kSrcIn_Mode);
SkPaint* paint = dl->addLayer(info);
SkSafeUnref(paint->setMaskFilter(mf));
SkSafeUnref(paint->setColorFilter(cf));
// dl is now built, just install it
platformContext()->setDrawLooper(dl);
}
virtual void onDrawContent(SkCanvas* canvas) {
canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
if (false) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(50);
paint.setTypeface(SkTypeface::CreateFromName("Arial Unicode MS", SkTypeface::kNormal));
SkSafeUnref(paint.getTypeface());
char buffer[10];
size_t len = SkUTF8_FromUnichar(0x8500, buffer);
canvas->drawText(buffer, len, 40, 40, paint);
return;
}
if (false) {
SkPaint paint;
paint.setAntiAlias(true);
SkRect r0 = { 0, 0, 10.5f, 20 };
SkRect r1 = { 10.5f, 10, 20, 30 };
paint.setColor(SK_ColorRED);
canvas->drawRect(r0, paint);
paint.setColor(SK_ColorBLUE);
canvas->drawRect(r1, paint);
return;
}
const struct {
SkXfermode::Mode fMode;
const char* fLabel;
} gModes[] = {
{ SkXfermode::kClear_Mode, "Clear" },
{ SkXfermode::kSrc_Mode, "Src" },
{ SkXfermode::kDst_Mode, "Dst" },
{ SkXfermode::kSrcOver_Mode, "SrcOver" },
{ SkXfermode::kDstOver_Mode, "DstOver" },
{ SkXfermode::kSrcIn_Mode, "SrcIn" },
{ SkXfermode::kDstIn_Mode, "DstIn" },
{ SkXfermode::kSrcOut_Mode, "SrcOut" },
{ SkXfermode::kDstOut_Mode, "DstOut" },
{ SkXfermode::kSrcATop_Mode, "SrcATop" },
{ SkXfermode::kDstATop_Mode, "DstATop" },
{ SkXfermode::kXor_Mode, "Xor" },
{ SkXfermode::kPlus_Mode, "Plus" },
/*{ SkXfermode::kModulate_Mode, "Modulate" },
{ SkXfermode::kScreen_Mode, "Screen" },
{ SkXfermode::kOverlay_Mode, "Overlay" },
{ SkXfermode::kDarken_Mode, "Darken" },
{ SkXfermode::kLighten_Mode, "Lighten" },
{ SkXfermode::kColorDodge_Mode, "ColorDodge" },
{ SkXfermode::kColorBurn_Mode, "ColorBurn" },
{ SkXfermode::kHardLight_Mode, "HardLight" },
{ SkXfermode::kSoftLight_Mode, "SoftLight" },
{ SkXfermode::kDifference_Mode, "Difference" },
{ SkXfermode::kExclusion_Mode, "Exclusion" },*/
};
const SkScalar w = SkIntToScalar(W);
const SkScalar h = SkIntToScalar(H);
SkShader* s = SkShader::CreateBitmapShader(fBG,
SkShader::kRepeat_TileMode,
SkShader::kRepeat_TileMode);
SkMatrix m;
m.setScale(SkIntToScalar(6), SkIntToScalar(6));
s->setLocalMatrix(m);
SkPaint labelP;
labelP.setAntiAlias(true);
labelP.setLCDRenderText(true);
labelP.setTextAlign(SkPaint::kCenter_Align);
setNamedTypeface(&labelP, "Menlo Regular");
const int W = 5;
SkScalar x0 = 0;
for (int twice = 0; twice < 2; twice++) {
SkScalar x = x0, y = 0;
for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); i++) {
SkXfermode* mode = SkXfermode::Create(gModes[i].fMode);
SkAutoUnref aur(mode);
SkRect r;
r.set(x, y, x+w, y+h);
SkPaint p;
p.setStyle(SkPaint::kFill_Style);
p.setShader(s);
canvas->drawRect(r, p);
canvas->saveLayer(&r, NULL);
draw_mode(canvas, mode, twice ? 0x88 : 0xFF, r.fLeft, r.fTop);
canvas->restore();
r.inset(-SK_ScalarHalf, -SK_ScalarHalf);
p.setStyle(SkPaint::kStroke_Style);
p.setShader(NULL);
canvas->drawRect(r, p);
canvas->drawText(gModes[i].fLabel, strlen(gModes[i].fLabel),
x + w/2, y - labelP.getTextSize()/2, labelP);
x += w + SkIntToScalar(10);
if ((i % W) == W - 1) {
x = x0;
y += h + SkIntToScalar(30);
}
}
x0 += SkIntToScalar(400);
}
s->unref();
}
void onDraw(SkCanvas* canvas) override {
canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
const struct {
SkXfermode::Mode fMode;
const char* fLabel;
int fSourceTypeMask; // The source types to use this
// mode with. See draw_mode for
// an explanation of each type.
// PDF has to play some tricks
// to support the base modes,
// test those more extensively.
} gModes[] = {
{ SkXfermode::kClear_Mode, "Clear", kAll_SrcType },
{ SkXfermode::kSrc_Mode, "Src", kAll_SrcType },
{ SkXfermode::kDst_Mode, "Dst", kAll_SrcType },
{ SkXfermode::kSrcOver_Mode, "SrcOver", kAll_SrcType },
{ SkXfermode::kDstOver_Mode, "DstOver", kAll_SrcType },
{ SkXfermode::kSrcIn_Mode, "SrcIn", kAll_SrcType },
{ SkXfermode::kDstIn_Mode, "DstIn", kAll_SrcType },
{ SkXfermode::kSrcOut_Mode, "SrcOut", kAll_SrcType },
{ SkXfermode::kDstOut_Mode, "DstOut", kAll_SrcType },
{ SkXfermode::kSrcATop_Mode, "SrcATop", kAll_SrcType },
{ SkXfermode::kDstATop_Mode, "DstATop", kAll_SrcType },
{ SkXfermode::kXor_Mode, "Xor", kBasic_SrcType },
{ SkXfermode::kPlus_Mode, "Plus", kBasic_SrcType },
{ SkXfermode::kModulate_Mode, "Modulate", kAll_SrcType },
{ SkXfermode::kScreen_Mode, "Screen", kBasic_SrcType },
{ SkXfermode::kOverlay_Mode, "Overlay", kBasic_SrcType },
{ SkXfermode::kDarken_Mode, "Darken", kBasic_SrcType },
{ SkXfermode::kLighten_Mode, "Lighten", kBasic_SrcType },
{ SkXfermode::kColorDodge_Mode, "ColorDodge", kBasic_SrcType },
{ SkXfermode::kColorBurn_Mode, "ColorBurn", kBasic_SrcType },
{ SkXfermode::kHardLight_Mode, "HardLight", kBasic_SrcType },
{ SkXfermode::kSoftLight_Mode, "SoftLight", kBasic_SrcType },
{ SkXfermode::kDifference_Mode, "Difference", kBasic_SrcType },
{ SkXfermode::kExclusion_Mode, "Exclusion", kBasic_SrcType },
{ SkXfermode::kMultiply_Mode, "Multiply", kAll_SrcType },
{ SkXfermode::kHue_Mode, "Hue", kBasic_SrcType },
{ SkXfermode::kSaturation_Mode, "Saturation", kBasic_SrcType },
{ SkXfermode::kColor_Mode, "Color", kBasic_SrcType },
{ SkXfermode::kLuminosity_Mode, "Luminosity", kBasic_SrcType },
};
const SkScalar w = SkIntToScalar(W);
const SkScalar h = SkIntToScalar(H);
SkMatrix m;
m.setScale(SkIntToScalar(6), SkIntToScalar(6));
SkShader* s = SkShader::CreateBitmapShader(fBG,
SkShader::kRepeat_TileMode,
SkShader::kRepeat_TileMode,
&m);
SkPaint labelP;
labelP.setAntiAlias(true);
sk_tool_utils::set_portable_typeface(&labelP);
labelP.setTextAlign(SkPaint::kCenter_Align);
const int W = 5;
SkScalar x0 = 0;
SkScalar y0 = 0;
for (int sourceType = 1; sourceType & kAll_SrcType; sourceType <<= 1) {
SkScalar x = x0, y = y0;
for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); i++) {
if ((gModes[i].fSourceTypeMask & sourceType) == 0) {
continue;
}
SkXfermode* mode = SkXfermode::Create(gModes[i].fMode);
SkAutoUnref aur(mode);
SkRect r;
r.set(x, y, x+w, y+h);
SkPaint p;
p.setStyle(SkPaint::kFill_Style);
p.setShader(s);
canvas->drawRect(r, p);
canvas->saveLayer(&r, NULL);
draw_mode(canvas, mode, static_cast<SrcType>(sourceType),
r.fLeft, r.fTop);
canvas->restore();
r.inset(-SK_ScalarHalf, -SK_ScalarHalf);
p.setStyle(SkPaint::kStroke_Style);
p.setShader(NULL);
canvas->drawRect(r, p);
#if 1
canvas->drawText(gModes[i].fLabel, strlen(gModes[i].fLabel),
x + w/2, y - labelP.getTextSize()/2, labelP);
#endif
x += w + SkIntToScalar(10);
if ((i % W) == W - 1) {
x = x0;
y += h + SkIntToScalar(30);
}
}
if (y < 320) {
if (x > x0) {
y += h + SkIntToScalar(30);
}
y0 = y;
} else {
x0 += SkIntToScalar(400);
y0 = 0;
}
}
s->unref();
}
virtual void onDraw(SkCanvas* canvas) {
canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
this->drawBG(canvas);
const struct {
SkXfermode::Mode fMode;
const char* fLabel;
} gModes[] = {
{ SkXfermode::kClear_Mode, "Clear" },
{ SkXfermode::kSrc_Mode, "Src" },
{ SkXfermode::kDst_Mode, "Dst" },
{ SkXfermode::kSrcOver_Mode, "SrcOver" },
{ SkXfermode::kDstOver_Mode, "DstOver" },
{ SkXfermode::kSrcIn_Mode, "SrcIn" },
{ SkXfermode::kDstIn_Mode, "DstIn" },
{ SkXfermode::kSrcOut_Mode, "SrcOut" },
{ SkXfermode::kDstOut_Mode, "DstOut" },
{ SkXfermode::kSrcATop_Mode, "SrcATop" },
{ SkXfermode::kDstATop_Mode, "DstATop" },
{ SkXfermode::kXor_Mode, "Xor" },
{ SkXfermode::kPlus_Mode, "Plus" },
{ SkXfermode::kMultiply_Mode, "Multiply" },
{ SkXfermode::kScreen_Mode, "Screen" },
{ SkXfermode::kOverlay_Mode, "Overlay" },
{ SkXfermode::kDarken_Mode, "Darken" },
{ SkXfermode::kLighten_Mode, "Lighten" },
{ SkXfermode::kColorDodge_Mode, "ColorDodge" },
{ SkXfermode::kColorBurn_Mode, "ColorBurn" },
{ SkXfermode::kHardLight_Mode, "HardLight" },
{ SkXfermode::kSoftLight_Mode, "SoftLight" },
{ SkXfermode::kDifference_Mode, "Difference" },
{ SkXfermode::kExclusion_Mode, "Exclusion" },
};
const SkScalar w = SkIntToScalar(W);
const SkScalar h = SkIntToScalar(H);
SkShader* s = SkShader::CreateBitmapShader(fBG,
SkShader::kRepeat_TileMode,
SkShader::kRepeat_TileMode);
SkMatrix m;
m.setScale(SkIntToScalar(6), SkIntToScalar(6));
s->setLocalMatrix(m);
SkPaint labelP;
labelP.setAntiAlias(true);
labelP.setTextAlign(SkPaint::kCenter_Align);
const int W = 5;
SkScalar x0 = 0;
for (int twice = 0; twice < 2; twice++) {
SkScalar x = x0, y = 0;
for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); i++) {
SkXfermode* mode = SkXfermode::Create(gModes[i].fMode);
SkAutoUnref aur(mode);
SkRect r;
r.set(x, y, x+w, y+h);
SkPaint p;
p.setStyle(SkPaint::kFill_Style);
p.setShader(s);
canvas->drawRect(r, p);
canvas->saveLayer(&r, NULL, SkCanvas::kARGB_ClipLayer_SaveFlag);
draw_mode(canvas, mode, twice ? 0x88 : 0xFF, r.fLeft, r.fTop);
canvas->restore();
r.inset(-SK_ScalarHalf, -SK_ScalarHalf);
p.setStyle(SkPaint::kStroke_Style);
p.setShader(NULL);
canvas->drawRect(r, p);
#if 1
canvas->drawText(gModes[i].fLabel, strlen(gModes[i].fLabel),
x + w/2, y - labelP.getTextSize()/2, labelP);
#endif
x += w + SkIntToScalar(10);
if ((i % W) == W - 1) {
x = x0;
y += h + SkIntToScalar(30);
}
}
x0 += SkIntToScalar(400);
}
s->unref();
}
