Reason for revert: Test failures R=scroggo@google.com, djsollen@google.com, reed@google.com, halcanary@google.com TBR=djsollen@google.com, halcanary@google.com, reed@google.com, scroggo@google.com NOTREECHECKS=true NOTRY=true Author: robertphillips@google.com Review URL: https://codereview.chromium.org/103753007 git-svn-id: http://skia.googlecode.com/svn/trunk@12747 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
parent
1cd71fb013
commit
1ad518bf38
@ -12,7 +12,6 @@
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#include "SkDiscardableMemoryPool.h"
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#include "SkDiscardablePixelRef.h"
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#include "SkImageDecoder.h"
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#include "SkImageGenerator.h"
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#include "SkOSFile.h"
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#include "SkStream.h"
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@ -36,10 +35,8 @@ protected:
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// bitmap is unlocked.
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SkAutoTUnref<SkDiscardableMemoryPool> pool(
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SkNEW_ARGS(SkDiscardableMemoryPool, (1)));
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SkAssertResult(SkInstallDiscardablePixelRef(
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SkDecodingImageGenerator::Create(
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data, SkDecodingImageGenerator::Options()),
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&fBitmap, pool));
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SkAssertResult(SkDecodingImageGenerator::Install(data,
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&fBitmap, pool));
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}
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}
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@ -71,4 +68,4 @@ private:
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static GM* MyFactory(void*) { return new FactoryGM; }
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static GMRegistry reg(MyFactory);
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} // namespace skiagm
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}
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@ -21,8 +21,6 @@ class SkImageGenerator;
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* the generator. If it succeeds, it will modify destination
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* bitmap.
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*
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* If generator is NULL, will safely return false.
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*
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* If this fails or when the SkDiscardablePixelRef that is
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* installed into destination is destroyed, it will call
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* SkDELETE() on the generator. Therefore, generator should be
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@ -40,8 +40,7 @@ static SkBitmap load_bitmap() {
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SkString path = SkOSPath::SkPathJoin(directory.c_str(), "mandrill_512.png");
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SkAutoDataUnref data(SkData::NewFromFileName(path.c_str()));
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if (data.get() != NULL) {
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SkInstallDiscardablePixelRef(SkDecodingImageGenerator::Create(
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data, SkDecodingImageGenerator::Options()), &bm, NULL);
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SkDecodingImageGenerator::Install(data.get(), &bm);
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}
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return bm;
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}
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@ -9,8 +9,8 @@
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#include "SkCanvas.h"
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#include "SkPicture.h"
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SkBitmap::Config SkColorTypeToBitmapConfig(SkColorType colorType) {
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switch (colorType) {
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SkBitmap::Config SkImageInfoToBitmapConfig(const SkImageInfo& info) {
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switch (info.fColorType) {
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case kAlpha_8_SkColorType:
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return SkBitmap::kA8_Config;
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@ -33,39 +33,6 @@ SkBitmap::Config SkColorTypeToBitmapConfig(SkColorType colorType) {
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return SkBitmap::kNo_Config;
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}
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SkBitmap::Config SkImageInfoToBitmapConfig(const SkImageInfo& info) {
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return SkColorTypeToBitmapConfig(info.fColorType);
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}
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bool SkBitmapConfigToColorType(SkBitmap::Config config, SkColorType* ctOut) {
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SkColorType ct;
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switch (config) {
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case SkBitmap::kA8_Config:
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ct = kAlpha_8_SkColorType;
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break;
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case SkBitmap::kIndex8_Config:
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ct = kIndex_8_SkColorType;
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break;
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case SkBitmap::kRGB_565_Config:
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ct = kRGB_565_SkColorType;
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break;
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case SkBitmap::kARGB_4444_Config:
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ct = kARGB_4444_SkColorType;
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break;
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case SkBitmap::kARGB_8888_Config:
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ct = kPMColor_SkColorType;
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break;
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case SkBitmap::kNo_Config:
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default:
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return false;
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}
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if (ctOut) {
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*ctOut = ct;
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}
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return true;
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}
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SkImage* SkNewImageFromBitmap(const SkBitmap& bm, bool canSharePixelRef) {
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SkImageInfo info;
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if (!bm.asImageInfo(&info)) {
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@ -14,8 +14,6 @@
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class SkPicture;
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extern SkBitmap::Config SkImageInfoToBitmapConfig(const SkImageInfo&);
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extern SkBitmap::Config SkColorTypeToBitmapConfig(SkColorType);
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extern bool SkBitmapConfigToColorType(SkBitmap::Config, SkColorType* ctOut);
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// Call this if you explicitly want to use/share this pixelRef in the image
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extern SkImage* SkNewImageFromPixelRef(const SkImageInfo&, SkPixelRef*,
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@ -5,14 +5,13 @@
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* found in the LICENSE file.
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*/
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#include "SkData.h"
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#include "SkDecodingImageGenerator.h"
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#include "SkData.h"
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#include "SkImageDecoder.h"
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#include "SkImageInfo.h"
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#include "SkImageGenerator.h"
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#include "SkImagePriv.h"
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#include "SkStream.h"
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#include "SkUtils.h"
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namespace {
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/**
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@ -21,55 +20,56 @@ namespace {
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*/
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class TargetAllocator : public SkBitmap::Allocator {
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public:
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TargetAllocator(void* target,
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size_t rowBytes,
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int width,
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int height,
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SkBitmap::Config config)
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TargetAllocator(void* target, size_t rowBytes, const SkImageInfo& info)
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: fTarget(target)
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, fRowBytes(rowBytes)
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, fWidth(width)
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, fHeight(height)
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, fConfig(config) { }
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, fInfo(info) { }
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bool isReady() { return (fTarget != NULL); }
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virtual bool allocPixelRef(SkBitmap* bm, SkColorTable* ct) {
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if ((NULL == fTarget)
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|| (fConfig != bm->config())
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|| (fWidth != bm->width())
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|| (fHeight != bm->height())
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|| (ct != NULL)) {
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// Call default allocator.
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return bm->allocPixels(NULL, ct);
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virtual bool allocPixelRef(SkBitmap* bm, SkColorTable* ct) SK_OVERRIDE {
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if ((SkImageInfoToBitmapConfig(fInfo) != bm->config())
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|| (bm->width() != fInfo.fWidth)
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|| (bm->height() != fInfo.fHeight)) {
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return false;
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}
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// make sure fRowBytes is correct.
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bm->setConfig(fConfig, fWidth, fHeight, fRowBytes, bm->alphaType());
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// TODO(halcanary): verify that all callers of this function
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// will respect new RowBytes. Will be moot once rowbytes belongs
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// to PixelRef.
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bm->setPixels(fTarget, NULL);
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fTarget = NULL; // never alloc same pixels twice!
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bm->setConfig(bm->config(), bm->width(), bm->height(),
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fRowBytes, bm->alphaType());
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bm->setPixels(fTarget, ct);
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return true;
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}
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private:
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void* fTarget; // Block of memory to be supplied as pixel memory
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// in allocPixelRef. Must be large enough to hold
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// a bitmap described by fWidth, fHeight, and
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// fRowBytes.
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size_t fRowBytes; // rowbytes for the destination bitmap
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int fWidth; // Along with fHeight and fConfig, the information
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int fHeight; // about the bitmap whose pixels this allocator is
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// expected to allocate. If they do not match the
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// bitmap passed to allocPixelRef, it is assumed
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// that the bitmap will be copied to a bitmap with
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// the correct info using this allocator, so the
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// default allocator will be used instead of
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// fTarget.
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SkBitmap::Config fConfig;
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void* fTarget;
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size_t fRowBytes;
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SkImageInfo fInfo;
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typedef SkBitmap::Allocator INHERITED;
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};
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} // namespace
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////////////////////////////////////////////////////////////////////////////////
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SkDecodingImageGenerator::SkDecodingImageGenerator(SkData* data)
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: fData(data)
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, fHasInfo(false)
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, fDoCopyTo(false) {
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SkASSERT(fData != NULL);
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fStream = SkNEW_ARGS(SkMemoryStream, (fData));
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SkASSERT(fStream != NULL);
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SkASSERT(fStream->unique());
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fData->ref();
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}
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SkDecodingImageGenerator::SkDecodingImageGenerator(SkStreamRewindable* stream)
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: fData(NULL)
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, fStream(stream)
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, fHasInfo(false)
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, fDoCopyTo(false) {
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SkASSERT(fStream != NULL);
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SkASSERT(fStream->unique());
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}
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SkDecodingImageGenerator::~SkDecodingImageGenerator() {
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SkSafeUnref(fData);
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fStream->unref();
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}
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// TODO(halcanary): Give this macro a better name and move it into SkTypes.h
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#ifdef SK_DEBUG
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@ -78,49 +78,8 @@ private:
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#define SkCheckResult(expr, value) (void)(expr)
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#endif
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#ifdef SK_DEBUG
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inline bool check_alpha(SkAlphaType reported, SkAlphaType actual) {
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return ((reported == actual)
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|| ((reported == kPremul_SkAlphaType)
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&& (actual == kOpaque_SkAlphaType)));
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}
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#endif // SK_DEBUG
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} // namespace
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////////////////////////////////////////////////////////////////////////////////
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SkDecodingImageGenerator::SkDecodingImageGenerator(
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SkData* data,
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SkStreamRewindable* stream,
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const SkImageInfo& info,
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int sampleSize,
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bool ditherImage,
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SkBitmap::Config requestedConfig)
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: fData(data)
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, fStream(stream)
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, fInfo(info)
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, fSampleSize(sampleSize)
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, fDitherImage(ditherImage)
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, fRequestedConfig(requestedConfig) {
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SkASSERT(stream != NULL);
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SkSafeRef(fData); // may be NULL.
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}
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SkDecodingImageGenerator::~SkDecodingImageGenerator() {
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SkSafeUnref(fData);
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fStream->unref();
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}
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bool SkDecodingImageGenerator::getInfo(SkImageInfo* info) {
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if (info != NULL) {
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*info = fInfo;
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}
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return true;
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}
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SkData* SkDecodingImageGenerator::refEncodedData() {
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// This functionality is used in `gm --serialize`
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// Does not encode options.
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if (fData != NULL) {
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return SkSafeRef(fData);
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}
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@ -139,149 +98,111 @@ SkData* SkDecodingImageGenerator::refEncodedData() {
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return SkSafeRef(fData);
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}
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bool SkDecodingImageGenerator::getInfo(SkImageInfo* info) {
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// info can be NULL. If so, will update fInfo, fDoCopyTo, and fHasInfo.
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if (fHasInfo) {
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if (info != NULL) {
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*info = fInfo;
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}
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return true;
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}
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SkAssertResult(fStream->rewind());
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SkAutoTDelete<SkImageDecoder> decoder(SkImageDecoder::Factory(fStream));
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if (NULL == decoder.get()) {
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return false;
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}
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SkBitmap bitmap;
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if (!decoder->decode(fStream, &bitmap,
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SkImageDecoder::kDecodeBounds_Mode)) {
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return false;
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}
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if (bitmap.config() == SkBitmap::kNo_Config) {
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return false;
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}
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if (!bitmap.asImageInfo(&fInfo)) {
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// We can't use bitmap.config() as is.
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if (!bitmap.canCopyTo(SkBitmap::kARGB_8888_Config)) {
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SkDEBUGFAIL("!bitmap->canCopyTo(SkBitmap::kARGB_8888_Config)");
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return false;
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}
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fDoCopyTo = true;
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fInfo.fWidth = bitmap.width();
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fInfo.fHeight = bitmap.height();
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fInfo.fColorType = kPMColor_SkColorType;
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fInfo.fAlphaType = bitmap.alphaType();
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}
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if (info != NULL) {
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*info = fInfo;
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}
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fHasInfo = true;
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return true;
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}
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bool SkDecodingImageGenerator::getPixels(const SkImageInfo& info,
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void* pixels,
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size_t rowBytes) {
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if (NULL == pixels) {
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return false;
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}
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if (fInfo != info) {
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// The caller has specified a different info. This is an
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// error for this kind of SkImageGenerator. Use the Options
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// to change the settings.
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if (!this->getInfo(NULL)) {
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return false;
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}
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int bpp = SkBitmap::ComputeBytesPerPixel(fRequestedConfig);
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if (static_cast<size_t>(bpp * info.fWidth) > rowBytes) {
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// The caller has specified a bad rowBytes.
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return false;
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if (SkImageInfoToBitmapConfig(info) == SkBitmap::kNo_Config) {
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return false; // Unsupported SkColorType.
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}
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SkAssertResult(fStream->rewind());
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SkAutoTDelete<SkImageDecoder> decoder(SkImageDecoder::Factory(fStream));
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if (NULL == decoder.get()) {
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return false;
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}
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decoder->setDitherImage(fDitherImage);
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decoder->setSampleSize(fSampleSize);
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if (fInfo != info) {
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// The caller has specified a different info. For now, this
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// is an error. In the future, we will check to see if we can
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// convert.
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return false;
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}
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int bpp = SkBitmap::ComputeBytesPerPixel(SkImageInfoToBitmapConfig(info));
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if (static_cast<size_t>(bpp * info.fWidth) > rowBytes) {
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return false;
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}
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SkBitmap bitmap;
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TargetAllocator allocator(pixels, rowBytes, info.fWidth,
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info.fHeight, fRequestedConfig);
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decoder->setAllocator(&allocator);
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bool success = decoder->decode(fStream, &bitmap, fRequestedConfig,
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if (!bitmap.setConfig(info, rowBytes)) {
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return false;
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}
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TargetAllocator allocator(pixels, rowBytes, info);
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if (!fDoCopyTo) {
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decoder->setAllocator(&allocator);
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}
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bool success = decoder->decode(fStream, &bitmap,
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SkImageDecoder::kDecodePixels_Mode);
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decoder->setAllocator(NULL);
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if (!success) {
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return false;
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}
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if (allocator.isReady()) { // Did not use pixels!
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SkBitmap bm;
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SkASSERT(bitmap.canCopyTo(fRequestedConfig));
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if (!bitmap.copyTo(&bm, fRequestedConfig, &allocator)
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|| allocator.isReady()) {
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SkDEBUGFAIL("bitmap.copyTo(requestedConfig) failed.");
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// Earlier we checked canCopyto(); we expect consistency.
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return false;
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}
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SkASSERT(check_alpha(fInfo.fAlphaType, bm.alphaType()));
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} else {
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SkASSERT(check_alpha(fInfo.fAlphaType, bitmap.alphaType()));
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if (fDoCopyTo) {
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SkBitmap bm8888;
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bitmap.copyTo(&bm8888, SkBitmap::kARGB_8888_Config, &allocator);
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}
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return true;
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}
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SkImageGenerator* SkDecodingImageGenerator::Create(
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SkData* data,
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const SkDecodingImageGenerator::Options& opts) {
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bool SkDecodingImageGenerator::Install(SkData* data, SkBitmap* dst,
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SkDiscardableMemory::Factory* factory) {
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SkASSERT(data != NULL);
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if (NULL == data) {
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return NULL;
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}
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SkStreamRewindable* stream = SkNEW_ARGS(SkMemoryStream, (data));
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SkASSERT(stream != NULL);
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SkASSERT(stream->unique());
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return SkDecodingImageGenerator::Create(data, stream, opts);
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SkASSERT(dst != NULL);
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SkImageGenerator* gen(SkNEW_ARGS(SkDecodingImageGenerator, (data)));
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return SkInstallDiscardablePixelRef(gen, dst, factory);
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}
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SkImageGenerator* SkDecodingImageGenerator::Create(
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SkStreamRewindable* stream,
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const SkDecodingImageGenerator::Options& opts) {
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bool SkDecodingImageGenerator::Install(SkStreamRewindable* stream,
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SkBitmap* dst,
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SkDiscardableMemory::Factory* factory) {
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SkASSERT(stream != NULL);
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SkASSERT(stream->unique());
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SkASSERT(dst != NULL);
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if ((stream == NULL) || !stream->unique()) {
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SkSafeUnref(stream);
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return NULL;
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return false;
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}
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return SkDecodingImageGenerator::Create(NULL, stream, opts);
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}
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// A contructor-type function that returns NULL on failure. This
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// prevents the returned SkImageGenerator from ever being in a bad
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// state. Called by both Create() functions
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SkImageGenerator* SkDecodingImageGenerator::Create(
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SkData* data,
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SkStreamRewindable* stream,
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const SkDecodingImageGenerator::Options& opts) {
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SkASSERT(stream);
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SkAutoTUnref<SkStreamRewindable> autoStream(stream); // always unref this.
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if (opts.fUseRequestedColorType &&
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(kIndex_8_SkColorType == opts.fRequestedColorType)) {
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// We do not support indexed color with SkImageGenerators,
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return NULL;
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}
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SkAssertResult(autoStream->rewind());
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SkAutoTDelete<SkImageDecoder> decoder(SkImageDecoder::Factory(autoStream));
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if (NULL == decoder.get()) {
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return NULL;
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}
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SkBitmap bitmap;
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decoder->setSampleSize(opts.fSampleSize);
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if (!decoder->decode(stream, &bitmap,
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SkImageDecoder::kDecodeBounds_Mode)) {
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return NULL;
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}
|
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if (bitmap.config() == SkBitmap::kNo_Config) {
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return NULL;
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}
|
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|
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SkImageInfo info;
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SkBitmap::Config config;
|
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|
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if (!opts.fUseRequestedColorType) {
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// Use default config.
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||||
if (SkBitmap::kIndex8_Config == bitmap.config()) {
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// We don't support kIndex8 because we don't support
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// colortables in this workflow.
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config = SkBitmap::kARGB_8888_Config;
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info.fWidth = bitmap.width();
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info.fHeight = bitmap.height();
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info.fColorType = kPMColor_SkColorType;
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info.fAlphaType = bitmap.alphaType();
|
||||
} else {
|
||||
config = bitmap.config(); // Save for later!
|
||||
if (!bitmap.asImageInfo(&info)) {
|
||||
SkDEBUGFAIL("Getting SkImageInfo from bitmap failed.");
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
config = SkColorTypeToBitmapConfig(opts.fRequestedColorType);
|
||||
if (!bitmap.canCopyTo(config)) {
|
||||
SkASSERT(bitmap.config() != config);
|
||||
return NULL; // Can not translate to needed config.
|
||||
}
|
||||
info.fWidth = bitmap.width();
|
||||
info.fHeight = bitmap.height();
|
||||
info.fColorType = opts.fRequestedColorType;
|
||||
info.fAlphaType = bitmap.alphaType();
|
||||
|
||||
// Sanity check.
|
||||
SkDEBUGCODE(SkColorType tmp;)
|
||||
SkASSERT(SkBitmapConfigToColorType(config, &tmp));
|
||||
SkASSERT(tmp == opts.fRequestedColorType);
|
||||
}
|
||||
return SkNEW_ARGS(SkDecodingImageGenerator,
|
||||
(data, autoStream.detach(), info,
|
||||
opts.fSampleSize, opts.fDitherImage, config));
|
||||
SkImageGenerator* gen(SkNEW_ARGS(SkDecodingImageGenerator, (stream)));
|
||||
return SkInstallDiscardablePixelRef(gen, dst, factory);
|
||||
}
|
||||
|
@ -8,134 +8,113 @@
|
||||
#ifndef SkDecodingImageGenerator_DEFINED
|
||||
#define SkDecodingImageGenerator_DEFINED
|
||||
|
||||
#include "SkBitmap.h"
|
||||
#include "SkDiscardableMemory.h"
|
||||
#include "SkImageGenerator.h"
|
||||
#include "SkImageInfo.h"
|
||||
|
||||
class SkData;
|
||||
class SkBitmap;
|
||||
class SkStreamRewindable;
|
||||
|
||||
/**
|
||||
* An implementation of SkImageGenerator that calls into
|
||||
* SkImageDecoder.
|
||||
* Calls into SkImageDecoder::DecodeMemoryToTarget to implement a
|
||||
* SkImageGenerator
|
||||
*/
|
||||
class SkDecodingImageGenerator : public SkImageGenerator {
|
||||
public:
|
||||
virtual ~SkDecodingImageGenerator();
|
||||
virtual SkData* refEncodedData() SK_OVERRIDE;
|
||||
// This implementaion of getInfo() always returns true.
|
||||
virtual bool getInfo(SkImageInfo* info) SK_OVERRIDE;
|
||||
virtual bool getPixels(const SkImageInfo& info,
|
||||
void* pixels,
|
||||
size_t rowBytes) SK_OVERRIDE;
|
||||
/**
|
||||
* These options will be passed on to the image decoder. The
|
||||
* defaults are sensible.
|
||||
*
|
||||
* @param fSampleSize If set to > 1, tells the decoder to return a
|
||||
* smaller than original bitmap, sampling 1 pixel for
|
||||
* every size pixels. e.g. if sample size is set to 3,
|
||||
* then the returned bitmap will be 1/3 as wide and high,
|
||||
* and will contain 1/9 as many pixels as the original.
|
||||
* Note: this is a hint, and the codec may choose to
|
||||
* ignore this, or only approximate the sample size.
|
||||
*
|
||||
* @param fDitherImage Set to true if the the decoder should try to
|
||||
* dither the resulting image when decoding to a smaller
|
||||
* color-space. The default is true.
|
||||
*
|
||||
* @param fRequestedColorType If not given, then use whichever
|
||||
* config the decoder wants. Else try to use this color
|
||||
* type. If the decoder won't support this color type,
|
||||
* SkDecodingImageGenerator::Create will return
|
||||
* NULL. kIndex_8_SkColorType is not supported.
|
||||
/*
|
||||
* The constructor will take a reference to the SkData. The
|
||||
* destructor will unref() it.
|
||||
*/
|
||||
struct Options {
|
||||
Options()
|
||||
: fSampleSize(1)
|
||||
, fDitherImage(true)
|
||||
, fUseRequestedColorType(false)
|
||||
, fRequestedColorType() { }
|
||||
Options(int sampleSize, bool dither)
|
||||
: fSampleSize(sampleSize)
|
||||
, fDitherImage(dither)
|
||||
, fUseRequestedColorType(false)
|
||||
, fRequestedColorType() { }
|
||||
Options(int sampleSize, bool dither, SkColorType colorType)
|
||||
: fSampleSize(sampleSize)
|
||||
, fDitherImage(dither)
|
||||
, fUseRequestedColorType(true)
|
||||
, fRequestedColorType(colorType) { }
|
||||
const int fSampleSize;
|
||||
const bool fDitherImage;
|
||||
const bool fUseRequestedColorType;
|
||||
const SkColorType fRequestedColorType;
|
||||
};
|
||||
explicit SkDecodingImageGenerator(SkData* data);
|
||||
|
||||
/**
|
||||
* These two functions return a SkImageGenerator that calls into
|
||||
* SkImageDecoder. They return NULL on failure.
|
||||
/*
|
||||
* The SkData version of this constructor is preferred. If the
|
||||
* stream has an underlying SkData (such as a SkMemoryStream)
|
||||
* pass that in.
|
||||
*
|
||||
* The SkData version of this function is preferred. If the stream
|
||||
* has an underlying SkData (such as a SkMemoryStream) pass that in.
|
||||
*
|
||||
* This object will unref the stream when done or on failure. Since
|
||||
* streams have internal state (position), the caller should not pass
|
||||
* a shared stream in. Pass either a new duplicated stream in or
|
||||
* transfer ownership of the stream. This factory asserts
|
||||
* This object will unref the stream when done. Since streams
|
||||
* have internal state (position), the caller should not pass a
|
||||
* shared stream in. Pass either a new duplicated stream in or
|
||||
* transfer ownership of the stream. In the latter case, be sure
|
||||
* that there are no other consumers of the stream who will
|
||||
* modify the stream's position. This constructor asserts
|
||||
* stream->unique().
|
||||
*
|
||||
* For example:
|
||||
* SkStreamRewindable* stream;
|
||||
* ...
|
||||
* SkImageGenerator* gen
|
||||
* = SkDecodingImageGenerator::Create(
|
||||
* stream->duplicate(), SkDecodingImageGenerator::Options());
|
||||
* = SkNEW_ARGS(SkDecodingImageGenerator,
|
||||
* (stream->duplicate()));
|
||||
* ...
|
||||
* SkDELETE(gen);
|
||||
*
|
||||
* @param Options (see above)
|
||||
*
|
||||
* @return NULL on failure, a new SkImageGenerator on success.
|
||||
*/
|
||||
static SkImageGenerator* Create(SkStreamRewindable* stream,
|
||||
const Options& opt);
|
||||
explicit SkDecodingImageGenerator(SkStreamRewindable* stream);
|
||||
|
||||
virtual ~SkDecodingImageGenerator();
|
||||
|
||||
virtual SkData* refEncodedData() SK_OVERRIDE;
|
||||
|
||||
virtual bool getInfo(SkImageInfo* info) SK_OVERRIDE;
|
||||
|
||||
virtual bool getPixels(const SkImageInfo& info,
|
||||
void* pixels,
|
||||
size_t rowBytes) SK_OVERRIDE;
|
||||
|
||||
/**
|
||||
* @param data Contains the encoded image data that will be used by
|
||||
* the SkDecodingImageGenerator. Will be ref()ed by the
|
||||
* SkImageGenerator constructor and and unref()ed on deletion.
|
||||
* Install the SkData into the destination bitmap, using a new
|
||||
* SkDiscardablePixelRef and a new SkDecodingImageGenerator.
|
||||
*
|
||||
* @param data Contains the encoded image data that will be used
|
||||
* by the SkDecodingImageGenerator. Will be ref()ed.
|
||||
*
|
||||
* @param destination Upon success, this bitmap will be
|
||||
* configured and have a pixelref installed.
|
||||
*
|
||||
* @param factory If not NULL, this object will be used as a
|
||||
* source of discardable memory when decoding. If NULL, then
|
||||
* SkDiscardableMemory::Create() will be called.
|
||||
*
|
||||
* @return true iff successful.
|
||||
*/
|
||||
static SkImageGenerator* Create(SkData* data, const Options& opt);
|
||||
static bool Install(SkData* data, SkBitmap* destination,
|
||||
SkDiscardableMemory::Factory* factory = NULL);
|
||||
/**
|
||||
* Install the stream into the destination bitmap, using a new
|
||||
* SkDiscardablePixelRef and a new SkDecodingImageGenerator.
|
||||
*
|
||||
* The SkData version of this function is preferred. If the
|
||||
* stream has an underlying SkData (such as a SkMemoryStream)
|
||||
* pass that in.
|
||||
*
|
||||
* @param stream The source of encoded data that will be passed
|
||||
* to the decoder. The installed SkDecodingImageGenerator will
|
||||
* unref the stream when done. If false is returned, this
|
||||
* function will perform the unref. Since streams have internal
|
||||
* state (position), the caller should not pass a shared stream
|
||||
* in. Pass either a new duplicated stream in or transfer
|
||||
* ownership of the stream. In the latter case, be sure that
|
||||
* there are no other consumers of the stream who will modify the
|
||||
* stream's position. This function will fail if
|
||||
* (!stream->unique()).
|
||||
*
|
||||
* @param destination Upon success, this bitmap will be
|
||||
* configured and have a pixelref installed.
|
||||
*
|
||||
* @param factory If not NULL, this object will be used as a
|
||||
* source of discardable memory when decoding. If NULL, then
|
||||
* SkDiscardableMemory::Create() will be called.
|
||||
*
|
||||
* @return true iff successful.
|
||||
*/
|
||||
static bool Install(SkStreamRewindable* stream, SkBitmap* destination,
|
||||
SkDiscardableMemory::Factory* factory = NULL);
|
||||
|
||||
private:
|
||||
SkData* fData;
|
||||
SkStreamRewindable* fStream;
|
||||
const SkImageInfo fInfo;
|
||||
const int fSampleSize;
|
||||
const bool fDitherImage;
|
||||
const SkBitmap::Config fRequestedConfig;
|
||||
SkDecodingImageGenerator(SkData* data,
|
||||
SkStreamRewindable* stream,
|
||||
const SkImageInfo& info,
|
||||
int sampleSize,
|
||||
bool ditherImage,
|
||||
SkBitmap::Config requestedConfig);
|
||||
static SkImageGenerator* Create(SkData*, SkStreamRewindable*,
|
||||
const Options&);
|
||||
typedef SkImageGenerator INHERITED;
|
||||
SkData* fData;
|
||||
SkStreamRewindable* fStream;
|
||||
SkImageInfo fInfo;
|
||||
bool fHasInfo;
|
||||
bool fDoCopyTo;
|
||||
};
|
||||
|
||||
// // Example of most basic use case:
|
||||
//
|
||||
// bool install_data(SkData* data, SkBitmap* dst) {
|
||||
// return SkInstallDiscardablePixelRef(
|
||||
// SkDecodingImageGenerator::Create(
|
||||
// data, SkDecodingImageGenerator::Options()), dst, NULL);
|
||||
// }
|
||||
// bool install_stream(SkStreamRewindable* stream, SkBitmap* dst) {
|
||||
// return SkInstallDiscardablePixelRef(
|
||||
// SkDecodingImageGenerator::Create(
|
||||
// stream, SkDecodingImageGenerator::Options()), dst, NULL);
|
||||
// }
|
||||
|
||||
#endif // SkDecodingImageGenerator_DEFINED
|
||||
|
@ -12,6 +12,7 @@
|
||||
bool SkCachingPixelRef::Install(SkImageGenerator* generator,
|
||||
SkBitmap* dst) {
|
||||
SkImageInfo info;
|
||||
SkASSERT(generator != NULL);
|
||||
SkASSERT(dst != NULL);
|
||||
if ((NULL == generator)
|
||||
|| !(generator->getInfo(&info))
|
||||
|
@ -72,19 +72,20 @@ bool SkInstallDiscardablePixelRef(SkImageGenerator* generator,
|
||||
SkBitmap* dst,
|
||||
SkDiscardableMemory::Factory* factory) {
|
||||
SkImageInfo info;
|
||||
SkAutoTDelete<SkImageGenerator> autoGenerator(generator);
|
||||
if ((NULL == autoGenerator.get())
|
||||
|| (!autoGenerator->getInfo(&info))
|
||||
SkASSERT(generator != NULL);
|
||||
if ((NULL == generator)
|
||||
|| (!generator->getInfo(&info))
|
||||
|| (!dst->setConfig(info, 0))) {
|
||||
SkDELETE(generator);
|
||||
return false;
|
||||
}
|
||||
SkASSERT(dst->config() != SkBitmap::kNo_Config);
|
||||
if (dst->empty()) { // Use a normal pixelref.
|
||||
if (dst->empty()) { // Use a normal pixelref.
|
||||
SkDELETE(generator); // Do not need this anymore.
|
||||
return dst->allocPixels(NULL, NULL);
|
||||
}
|
||||
SkAutoTUnref<SkDiscardablePixelRef> ref(
|
||||
SkNEW_ARGS(SkDiscardablePixelRef,
|
||||
(info, autoGenerator.detach(), dst->rowBytes(), factory)));
|
||||
SkAutoTUnref<SkDiscardablePixelRef> ref(SkNEW_ARGS(SkDiscardablePixelRef,
|
||||
(info, generator, dst->rowBytes(), factory)));
|
||||
dst->setPixelRef(ref);
|
||||
return true;
|
||||
}
|
||||
|
@ -13,15 +13,6 @@
|
||||
#include "SkImageInfo.h"
|
||||
#include "SkPixelRef.h"
|
||||
|
||||
/**
|
||||
* A PixelRef backed by SkDiscardableMemory, with the ability to
|
||||
* re-generate the pixels (via a SkImageGenerator) if the DM is
|
||||
* purged.
|
||||
*
|
||||
* Since SkColorTable is reference-counted, we do not support indexed
|
||||
* color with this class; there would be no way for the discardable
|
||||
* memory system to unref the color table.
|
||||
*/
|
||||
class SkDiscardablePixelRef : public SkPixelRef {
|
||||
public:
|
||||
SK_DECLARE_UNFLATTENABLE_OBJECT()
|
||||
|
@ -146,14 +146,11 @@ static void test_three_encodings(skiatest::Reporter* reporter,
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
static bool install_skCachingPixelRef(SkData* encoded, SkBitmap* dst) {
|
||||
return SkCachingPixelRef::Install(
|
||||
SkDecodingImageGenerator::Create(
|
||||
encoded, SkDecodingImageGenerator::Options()), dst);
|
||||
SkNEW_ARGS(SkDecodingImageGenerator, (encoded)), dst);
|
||||
}
|
||||
static bool install_skDiscardablePixelRef(SkData* encoded, SkBitmap* dst) {
|
||||
// Use system-default discardable memory.
|
||||
return SkInstallDiscardablePixelRef(
|
||||
SkDecodingImageGenerator::Create(
|
||||
encoded, SkDecodingImageGenerator::Options()), dst, NULL);
|
||||
return SkDecodingImageGenerator::Install(encoded, dst, NULL);
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
@ -216,12 +213,10 @@ public:
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
private:
|
||||
const TestType fType;
|
||||
skiatest::Reporter* const fReporter;
|
||||
};
|
||||
|
||||
void CheckTestImageGeneratorBitmap(skiatest::Reporter* reporter,
|
||||
const SkBitmap& bm) {
|
||||
REPORTER_ASSERT(reporter, TestImageGenerator::Width() == bm.width());
|
||||
|
@ -12,14 +12,10 @@
|
||||
#include "SkColor.h"
|
||||
#include "SkColorPriv.h"
|
||||
#include "SkData.h"
|
||||
#include "SkDecodingImageGenerator.h"
|
||||
#include "SkDiscardableMemoryPool.h"
|
||||
#include "SkForceLinking.h"
|
||||
#include "SkGradientShader.h"
|
||||
#include "SkImageDecoder.h"
|
||||
#include "SkImageEncoder.h"
|
||||
#include "SkImageGenerator.h"
|
||||
#include "SkImagePriv.h"
|
||||
#include "SkOSFile.h"
|
||||
#include "SkPoint.h"
|
||||
#include "SkShader.h"
|
||||
@ -156,7 +152,7 @@ static void test_unpremul(skiatest::Reporter* reporter) {
|
||||
if (iter.next(&basename)) {
|
||||
do {
|
||||
SkString filename = SkOSPath::SkPathJoin(resourcePath.c_str(), basename.c_str());
|
||||
// SkDebugf("about to decode \"%s\"\n", filename.c_str());
|
||||
//SkDebugf("about to decode \"%s\"\n", filename.c_str());
|
||||
compare_unpremul(reporter, filename);
|
||||
} while (iter.next(&basename));
|
||||
} else {
|
||||
@ -204,7 +200,7 @@ static void test_stream_life() {
|
||||
SkImageEncoder::kWEBP_Type,
|
||||
};
|
||||
for (size_t i = 0; i < SK_ARRAY_COUNT(gTypes); ++i) {
|
||||
// SkDebugf("encoding to %i\n", i);
|
||||
//SkDebugf("encoding to %i\n", i);
|
||||
SkAutoTUnref<SkMemoryStream> stream(create_image_stream(gTypes[i]));
|
||||
if (NULL == stream.get()) {
|
||||
SkDebugf("no stream\n");
|
||||
@ -231,7 +227,7 @@ static void test_stream_life() {
|
||||
// Test inside SkScaledBitmapSampler.cpp
|
||||
extern void test_row_proc_choice();
|
||||
|
||||
#endif // SK_DEBUG
|
||||
#endif // SK_DEBUG
|
||||
|
||||
DEF_TEST(ImageDecoding, reporter) {
|
||||
test_unpremul(reporter);
|
||||
@ -240,228 +236,3 @@ DEF_TEST(ImageDecoding, reporter) {
|
||||
test_row_proc_choice();
|
||||
#endif
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// example of how Android will do this inside their BitmapFactory
|
||||
static SkPixelRef* install_pixel_ref(SkBitmap* bitmap,
|
||||
SkStreamRewindable* stream,
|
||||
int sampleSize, bool ditherImage) {
|
||||
SkASSERT(bitmap != NULL);
|
||||
SkASSERT(stream != NULL);
|
||||
SkASSERT(stream->rewind());
|
||||
SkASSERT(stream->unique());
|
||||
SkColorType colorType;
|
||||
if (!SkBitmapConfigToColorType(bitmap->config(), &colorType)) {
|
||||
return NULL;
|
||||
}
|
||||
SkDecodingImageGenerator::Options opts(sampleSize, ditherImage, colorType);
|
||||
SkAutoTDelete<SkImageGenerator> gen(
|
||||
SkDecodingImageGenerator::Create(stream, opts));
|
||||
SkImageInfo info;
|
||||
if ((NULL == gen.get()) || !gen->getInfo(&info)) {
|
||||
return NULL;
|
||||
}
|
||||
SkDiscardableMemory::Factory* factory = NULL;
|
||||
if (info.getSafeSize(info.minRowBytes()) < (32 * 1024)) {
|
||||
// only use ashmem for large images, since mmaps come at a price
|
||||
factory = SkGetGlobalDiscardableMemoryPool();
|
||||
}
|
||||
if (SkInstallDiscardablePixelRef(gen.detach(), bitmap, factory)) {
|
||||
return bitmap->pixelRef();
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
/**
|
||||
* A test for the SkDecodingImageGenerator::Create and
|
||||
* SkInstallDiscardablePixelRef functions.
|
||||
*/
|
||||
DEF_TEST(ImprovedBitmapFactory, reporter) {
|
||||
SkString resourcePath = skiatest::Test::GetResourcePath();
|
||||
SkString directory = SkOSPath::SkPathJoin(resourcePath.c_str(), "encoding");
|
||||
SkString path = SkOSPath::SkPathJoin(directory.c_str(), "randPixels.png");
|
||||
SkAutoTUnref<SkStreamRewindable> stream(
|
||||
SkStream::NewFromFile(path.c_str()));
|
||||
if (sk_exists(path.c_str())) {
|
||||
SkBitmap bm;
|
||||
SkAssertResult(bm.setConfig(SkBitmap::kARGB_8888_Config, 1, 1));
|
||||
REPORTER_ASSERT(reporter,
|
||||
NULL != install_pixel_ref(&bm, stream.detach(), 1, true));
|
||||
SkAutoLockPixels alp(bm);
|
||||
REPORTER_ASSERT(reporter, NULL != bm.getPixels());
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
#if defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_UNIX)
|
||||
static inline bool check_rounding(int value, int dividend, int divisor) {
|
||||
// returns true if (dividend/divisor) rounds up OR down to value
|
||||
return (((divisor * value) > (dividend - divisor))
|
||||
&& ((divisor * value) < (dividend + divisor)));
|
||||
}
|
||||
#endif // SK_BUILD_FOR_ANDROID || SK_BUILD_FOR_UNIX
|
||||
namespace {
|
||||
// expected output for 8x8 bitmap
|
||||
const int kExpectedWidth = 8;
|
||||
const int kExpectedHeight = 8;
|
||||
const SkColor kExpectedPixels[] = {
|
||||
0xffbba570, 0xff395f5d, 0xffe25c39, 0xff197666,
|
||||
0xff3cba27, 0xffdefcb0, 0xffc13874, 0xfffa0093,
|
||||
0xffbda60e, 0xffc01db6, 0xff2bd688, 0xff9362d4,
|
||||
0xffc641b2, 0xffa5cede, 0xff606eba, 0xff8f4bf3,
|
||||
0xff3bf742, 0xff8f02a8, 0xff5509df, 0xffc7027e,
|
||||
0xff24aa8a, 0xff886c96, 0xff625481, 0xff403689,
|
||||
0xffc52152, 0xff78ccd6, 0xffdcb4ab, 0xff09d27d,
|
||||
0xffca00f3, 0xff605d47, 0xff446fb2, 0xff576e46,
|
||||
0xff273df9, 0xffb41a83, 0xfff812c3, 0xffccab67,
|
||||
0xff034218, 0xff7db9a7, 0xff821048, 0xfffe4ab4,
|
||||
0xff6fac98, 0xff941d27, 0xff5fe411, 0xfffbb283,
|
||||
0xffd86e99, 0xff169162, 0xff71128c, 0xff39cab4,
|
||||
0xffa7fe63, 0xff4c956b, 0xffbc22e0, 0xffb272e4,
|
||||
0xff129f4a, 0xffe34513, 0xff3d3742, 0xffbd190a,
|
||||
0xffb07222, 0xff2e23f8, 0xfff089d9, 0xffb35738,
|
||||
0xffa86022, 0xff3340fe, 0xff95fe71, 0xff6a71df
|
||||
};
|
||||
SK_COMPILE_ASSERT((kExpectedWidth * kExpectedHeight)
|
||||
== SK_ARRAY_COUNT(kExpectedPixels), array_size_mismatch);
|
||||
} // namespace
|
||||
|
||||
/**
|
||||
* Given either a SkStream or a SkData, try to decode the encoded
|
||||
* image using the specified options and report errors.
|
||||
*/
|
||||
static void test_options(skiatest::Reporter* reporter,
|
||||
const SkDecodingImageGenerator::Options& opts,
|
||||
SkStreamRewindable* encodedStream,
|
||||
SkData* encodedData,
|
||||
bool useData,
|
||||
const SkString& path) {
|
||||
SkBitmap bm;
|
||||
bool success = false;
|
||||
if (useData) {
|
||||
if (NULL == encodedData) {
|
||||
return;
|
||||
}
|
||||
success = SkInstallDiscardablePixelRef(
|
||||
SkDecodingImageGenerator::Create(encodedData, opts), &bm, NULL);
|
||||
} else {
|
||||
if (NULL == encodedStream) {
|
||||
return;
|
||||
}
|
||||
success = SkInstallDiscardablePixelRef(
|
||||
SkDecodingImageGenerator::Create(encodedStream->duplicate(), opts),
|
||||
&bm, NULL);
|
||||
}
|
||||
|
||||
REPORTER_ASSERT(reporter, success
|
||||
|| (kARGB_4444_SkColorType == opts.fRequestedColorType));
|
||||
if (!success) {
|
||||
return;
|
||||
}
|
||||
#if defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_UNIX)
|
||||
// Android is the only system that use Skia's image decoders in
|
||||
// production. For now, we'll only verify that samplesize works
|
||||
// on systems where it already is known to work.
|
||||
REPORTER_ASSERT(reporter, check_rounding(bm.height(), kExpectedHeight,
|
||||
opts.fSampleSize));
|
||||
REPORTER_ASSERT(reporter, check_rounding(bm.width(), kExpectedWidth,
|
||||
opts.fSampleSize));
|
||||
#endif // SK_BUILD_FOR_ANDROID || SK_BUILD_FOR_UNIX
|
||||
SkAutoLockPixels alp(bm);
|
||||
REPORTER_ASSERT(reporter, bm.getPixels() != NULL);
|
||||
|
||||
SkBitmap::Config requestedConfig
|
||||
= SkColorTypeToBitmapConfig(opts.fRequestedColorType);
|
||||
REPORTER_ASSERT(reporter,
|
||||
(!opts.fUseRequestedColorType)
|
||||
|| (bm.config() == requestedConfig));
|
||||
|
||||
// Condition under which we should check the decoding results:
|
||||
if ((SkBitmap::kARGB_8888_Config == bm.config())
|
||||
&& (NULL != bm.getPixels())
|
||||
&& (!path.endsWith(".jpg")) // lossy
|
||||
&& (!path.endsWith(".webp")) // decoder error
|
||||
&& (opts.fSampleSize == 1)) { // scaled
|
||||
bool pixelError = false;
|
||||
const SkColor* correctPixels = kExpectedPixels;
|
||||
SkASSERT(bm.height() == kExpectedHeight);
|
||||
SkASSERT(bm.width() == kExpectedWidth);
|
||||
for (int y = 0; y < bm.height(); ++y) {
|
||||
for (int x = 0; x < bm.width(); ++x) {
|
||||
pixelError |= (*correctPixels != bm.getColor(x, y));
|
||||
++correctPixels;
|
||||
}
|
||||
}
|
||||
REPORTER_ASSERT(reporter, !pixelError);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* SkDecodingImageGenerator has an Options struct which lets the
|
||||
* client of the generator set sample size, dithering, and bitmap
|
||||
* config. This test loops through many possible options and tries
|
||||
* them on a set of 5 small encoded images (each in a different
|
||||
* format). We test both SkData and SkStreamRewindable decoding.
|
||||
*/
|
||||
DEF_TEST(ImageDecoderOptions, reporter) {
|
||||
const char* files[] = {
|
||||
"randPixels.bmp",
|
||||
"randPixels.jpg",
|
||||
"randPixels.png",
|
||||
"randPixels.webp",
|
||||
"randPixels.gif"
|
||||
};
|
||||
|
||||
SkString resourceDir = skiatest::Test::GetResourcePath();
|
||||
SkString directory = SkOSPath::SkPathJoin(resourceDir.c_str(), "encoding");
|
||||
if (!sk_exists(directory.c_str())) {
|
||||
return;
|
||||
}
|
||||
|
||||
int scaleList[] = {1, 2, 3, 4};
|
||||
bool ditherList[] = {true, false};
|
||||
SkColorType colorList[] = {
|
||||
kAlpha_8_SkColorType,
|
||||
kRGB_565_SkColorType,
|
||||
kARGB_4444_SkColorType, // Most decoders will fail on 4444.
|
||||
kPMColor_SkColorType
|
||||
// Note that indexed color is left out of the list. Lazy
|
||||
// decoding doesn't do indexed color.
|
||||
};
|
||||
const bool useDataList[] = {true, false};
|
||||
|
||||
for (size_t fidx = 0; fidx < SK_ARRAY_COUNT(files); ++fidx) {
|
||||
SkString path = SkOSPath::SkPathJoin(directory.c_str(), files[fidx]);
|
||||
if (!sk_exists(path.c_str())) {
|
||||
continue;
|
||||
}
|
||||
|
||||
SkAutoDataUnref encodedData(SkData::NewFromFileName(path.c_str()));
|
||||
REPORTER_ASSERT(reporter, encodedData.get() != NULL);
|
||||
SkAutoTUnref<SkStreamRewindable> encodedStream(
|
||||
SkStream::NewFromFile(path.c_str()));
|
||||
REPORTER_ASSERT(reporter, encodedStream.get() != NULL);
|
||||
|
||||
for (size_t i = 0; i < SK_ARRAY_COUNT(scaleList); ++i) {
|
||||
for (size_t j = 0; j < SK_ARRAY_COUNT(ditherList); ++j) {
|
||||
for (size_t m = 0; m < SK_ARRAY_COUNT(useDataList); ++m) {
|
||||
for (size_t k = 0; k < SK_ARRAY_COUNT(colorList); ++k) {
|
||||
SkDecodingImageGenerator::Options opts(scaleList[i],
|
||||
ditherList[j],
|
||||
colorList[k]);
|
||||
test_options(reporter, opts, encodedStream, encodedData,
|
||||
useDataList[m], path);
|
||||
|
||||
}
|
||||
SkDecodingImageGenerator::Options options(scaleList[i],
|
||||
ditherList[j]);
|
||||
test_options(reporter, options, encodedStream, encodedData,
|
||||
useDataList[m], path);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -13,8 +13,6 @@
|
||||
#include "SkData.h"
|
||||
#include "SkDecodingImageGenerator.h"
|
||||
#include "SkError.h"
|
||||
#include "SkImageEncoder.h"
|
||||
#include "SkImageGenerator.h"
|
||||
#include "SkPaint.h"
|
||||
#include "SkPicture.h"
|
||||
#include "SkPictureUtils.h"
|
||||
@ -340,6 +338,8 @@ static void test_bad_bitmap() {
|
||||
}
|
||||
#endif
|
||||
|
||||
#include "SkImageEncoder.h"
|
||||
|
||||
static SkData* encode_bitmap_to_data(size_t* offset, const SkBitmap& bm) {
|
||||
*offset = 0;
|
||||
return SkImageEncoder::EncodeData(bm, SkImageEncoder::kPNG_Type, 100);
|
||||
@ -381,8 +381,7 @@ static void test_bitmap_with_encoded_data(skiatest::Reporter* reporter) {
|
||||
SkAutoDataUnref data(wStream.copyToData());
|
||||
|
||||
SkBitmap bm;
|
||||
bool installSuccess = SkInstallDiscardablePixelRef(
|
||||
SkDecodingImageGenerator::Create(data, SkDecodingImageGenerator::Options()), &bm, NULL);
|
||||
bool installSuccess = SkDecodingImageGenerator::Install(data, &bm);
|
||||
REPORTER_ASSERT(reporter, installSuccess);
|
||||
|
||||
// Write both bitmaps to pictures, and ensure that the resulting data streams are the same.
|
||||
|
@ -31,11 +31,10 @@ bool sk_tools::LazyDecodeBitmap(const void* src,
|
||||
return false;
|
||||
}
|
||||
|
||||
SkAutoTDelete<SkImageGenerator> gen(
|
||||
SkDecodingImageGenerator::Create(
|
||||
data, SkDecodingImageGenerator::Options()));
|
||||
SkAutoTDelete<SkImageGenerator> gen(SkNEW_ARGS(SkDecodingImageGenerator,
|
||||
(data)));
|
||||
SkImageInfo info;
|
||||
if ((NULL == gen.get()) || !gen->getInfo(&info)) {
|
||||
if (!gen->getInfo(&info)) {
|
||||
return false;
|
||||
}
|
||||
SkDiscardableMemory::Factory* pool = NULL;
|
||||
|
Loading…
Reference in New Issue
Block a user