Flutter Engine
The Flutter Engine
Loading...
Searching...
No Matches
Functions | Variables
SkBlurMaskFilterImpl.cpp File Reference
#include "src/core/SkBlurMaskFilterImpl.h"
#include "include/core/SkBlendMode.h"
#include "include/core/SkBlurTypes.h"
#include "include/core/SkFlattenable.h"
#include "include/core/SkImageFilter.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkMaskFilter.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPath.h"
#include "include/core/SkPathBuilder.h"
#include "include/core/SkPathTypes.h"
#include "include/core/SkPixmap.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRRect.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/effects/SkImageFilters.h"
#include "include/private/base/SkAlign.h"
#include "include/private/base/SkAssert.h"
#include "include/private/base/SkFloatingPoint.h"
#include "include/private/base/SkTemplates.h"
#include "src/base/SkTLazy.h"
#include "src/core/SkBlitter_A8.h"
#include "src/core/SkBlurMask.h"
#include "src/core/SkCachedData.h"
#include "src/core/SkDrawBase.h"
#include "src/core/SkMask.h"
#include "src/core/SkMaskCache.h"
#include "src/core/SkMaskFilterBase.h"
#include "src/core/SkRasterClip.h"
#include "src/core/SkReadBuffer.h"
#include "src/core/SkResourceCache.h"
#include "src/core/SkWriteBuffer.h"
#include <algorithm>
#include <cstdint>
#include <cstring>
#include <utility>

Go to the source code of this file.

Functions

static bool prepare_to_draw_into_mask (const SkRect &bounds, SkMaskBuilder *mask)
 
template<typename Proc >
bool draw_into_mask (SkMaskBuilder *mask, const SkRect &bounds, Proc proc)
 
static bool draw_rects_into_mask (const SkRect rects[], int count, SkMaskBuilder *mask)
 
static bool draw_rrect_into_mask (const SkRRect rrect, SkMaskBuilder *mask)
 
static bool rect_exceeds (const SkRect &r, SkScalar v)
 
static SkCachedData * copy_mask_to_cacheddata (SkMaskBuilder *mask)
 
static SkCachedData * find_cached_rrect (SkTLazy< SkMask > *mask, SkScalar sigma, SkBlurStyle style, const SkRRect &rrect)
 
static SkCachedData * add_cached_rrect (SkMaskBuilder *mask, SkScalar sigma, SkBlurStyle style, const SkRRect &rrect)
 
static SkCachedData * find_cached_rects (SkTLazy< SkMask > *mask, SkScalar sigma, SkBlurStyle style, const SkRect rects[], int count)
 
static SkCachedData * add_cached_rects (SkMaskBuilder *mask, SkScalar sigma, SkBlurStyle style, const SkRect rects[], int count)
 
void sk_register_blur_maskfilter_createproc ()
 

Variables

static const bool c_analyticBlurRRect {true}
 
static const bool c_analyticBlurNinepatch {true}
 

Function Documentation

◆ add_cached_rects()

static SkCachedData * add_cached_rects ( SkMaskBuilder *  mask,
SkScalar  sigma,
SkBlurStyle  style,
const SkRect  rects[],
int  count 
)
static

Definition at line 233 of file SkBlurMaskFilterImpl.cpp.

234 {
235 SkCachedData* cache = copy_mask_to_cacheddata(mask);
236 if (cache) {
237 SkMaskCache::Add(sigma, style, rects, count, *mask, cache);
238 }
239 return cache;
240}
count
int count
Definition FontMgrTest.cpp:50
copy_mask_to_cacheddata
static SkCachedData * copy_mask_to_cacheddata(SkMaskBuilder *mask)
Definition SkBlurMaskFilterImpl.cpp:203
SkMaskCache::Add
static void Add(SkScalar sigma, SkBlurStyle style, const SkRRect &rrect, const SkMask &mask, SkCachedData *data, SkResourceCache *localCache=nullptr)
Definition SkMaskCache.cpp:102
flutter::cache
DEF_SWITCHES_START aot vmservice shared library Name of the *so containing AOT compiled Dart assets for launching the service isolate vm snapshot The VM snapshot data that will be memory mapped as read only SnapshotAssetPath must be present isolate snapshot The isolate snapshot data that will be memory mapped as read only SnapshotAssetPath must be present cache dir Path to the cache directory This is different from the persistent_cache_path in embedder which is used for Skia shader cache icu native lib Path to the library file that exports the ICU data vm service The hostname IP address on which the Dart VM Service should be served If not defaults to or::depending on whether ipv6 is specified vm service A custom Dart VM Service port The default is to pick a randomly available open port disable vm Disable the Dart VM Service The Dart VM Service is never available in release mode disable vm service Disable mDNS Dart VM Service publication Bind to the IPv6 localhost address for the Dart VM Service Ignored if vm service host is set endless trace Enable an endless trace buffer The default is a ring buffer This is useful when very old events need to viewed For during application launch Memory usage will continue to grow indefinitely however Start app with an specific route defined on the framework flutter assets Path to the Flutter assets directory enable service port Allow the VM service to fallback to automatic port selection if binding to a specified port fails trace Trace early application lifecycle Automatically switches to an endless trace buffer trace skia Filters out all Skia trace event categories except those that are specified in this comma separated list dump skp on shader Automatically dump the skp that triggers new shader compilations This is useful for writing custom ShaderWarmUp to reduce jank By this is not enabled to reduce the overhead purge persistent cache
Definition switches.h:191

◆ add_cached_rrect()

static SkCachedData * add_cached_rrect ( SkMaskBuilder *  mask,
SkScalar  sigma,
SkBlurStyle  style,
const SkRRect &  rrect 
)
static

Definition at line 219 of file SkBlurMaskFilterImpl.cpp.

220 {
221 SkCachedData* cache = copy_mask_to_cacheddata(mask);
222 if (cache) {
223 SkMaskCache::Add(sigma, style, rrect, *mask, cache);
224 }
225 return cache;
226}

◆ copy_mask_to_cacheddata()

static SkCachedData * copy_mask_to_cacheddata ( SkMaskBuilder *  mask)
static

Definition at line 203 of file SkBlurMaskFilterImpl.cpp.

203 {
204 const size_t size = mask->computeTotalImageSize();
205 SkCachedData* data = SkResourceCache::NewCachedData(size);
206 if (data) {
207 memcpy(data->writable_data(), mask->fImage, size);
208 SkMaskBuilder::FreeImage(mask->image());
209 mask->image() = (uint8_t*)data->writable_data();
210 }
211 return data;
212}
SkResourceCache::NewCachedData
static SkCachedData * NewCachedData(size_t bytes)
Definition SkResourceCache.cpp:506
flutter::data
DEF_SWITCHES_START aot vmservice shared library Name of the *so containing AOT compiled Dart assets for launching the service isolate vm snapshot data
Definition switches.h:41
flutter::size
it will be possible to load the file into Perfetto s trace viewer disable asset Prevents usage of any non test fonts unless they were explicitly Loaded via prefetched default font Indicates whether the embedding started a prefetch of the default font manager before creating the engine run In non interactive keep the shell running after the Dart script has completed enable serial On low power devices with low core running concurrent GC tasks on threads can cause them to contend with the UI thread which could potentially lead to jank This option turns off all concurrent GC activities domain network JSON encoded network policy per domain This overrides the DisallowInsecureConnections switch Embedder can specify whether to allow or disallow insecure connections at a domain level old gen heap size
Definition switches.h:259
SkMaskBuilder::FreeImage
static void FreeImage(void *image)
Definition SkMask.cpp:57
SkMaskBuilder::image
uint8_t *& image()
Definition SkMask.h:236
SkMask::fImage
uint8_t const *const fImage
Definition SkMask.h:41
SkMask::computeTotalImageSize
size_t computeTotalImageSize() const
Definition SkMask.cpp:34

◆ draw_into_mask()

template<typename Proc >
bool draw_into_mask ( SkMaskBuilder *  mask,
const SkRect &  bounds,
Proc  proc 
)

Definition at line 148 of file SkBlurMaskFilterImpl.cpp.

148 {
149 if (!prepare_to_draw_into_mask(bounds, mask)) {
150 return false;
151 }
152
153 const int dx = mask->fBounds.fLeft;
154 const int dy = mask->fBounds.fTop;
155 SkRasterClip rclip(mask->fBounds);
156 rclip.setRect(mask->fBounds.makeOffset(-dx, -dy));
157
158 SkASSERT(mask->fFormat == SkMask::kA8_Format);
159 auto info = SkImageInfo::MakeA8(mask->fBounds.width(), mask->fBounds.height());
160 auto pm = SkPixmap(info, mask->fImage, mask->fRowBytes);
161
162 SkMatrix ctm = SkMatrix::Translate(-SkIntToScalar(dx), -SkIntToScalar(dy));
163
164 SkDrawBase draw;
165 draw.fBlitterChooser = SkA8Blitter_Choose;
166 draw.fCTM = &ctm;
167 draw.fDst = pm;
168 draw.fRC = &rclip;
169
170 SkPaint paint;
171 paint.setAntiAlias(true);
172
173 proc(draw, paint);
174 return true;
175}
info
static void info(const char *fmt,...) SK_PRINTF_LIKE(1
Definition DM.cpp:213
SkASSERT
#define SkASSERT(cond)
Definition SkAssert.h:116
SkA8Blitter_Choose
SkBlitter * SkA8Blitter_Choose(const SkPixmap &dst, const SkMatrix &ctm, const SkPaint &paint, SkArenaAlloc *alloc, bool drawCoverage, sk_sp< SkShader > clipShader, const SkSurfaceProps &)
Definition SkBlitter_A8.cpp:286
prepare_to_draw_into_mask
static bool prepare_to_draw_into_mask(const SkRect &bounds, SkMaskBuilder *mask)
Definition SkBlurMaskFilterImpl.cpp:134
SkIntToScalar
#define SkIntToScalar(x)
Definition SkScalar.h:57
draw
static void draw(SkCanvas *canvas, SkRect &target, int x, int y)
Definition aaclip.cpp:27
SkDrawBase::fBlitterChooser
BlitterChooser * fBlitterChooser
Definition SkDrawBase.h:152
SkMatrix::Translate
static SkMatrix Translate(SkScalar dx, SkScalar dy)
Definition SkMatrix.h:91
paint
const Paint & paint
Definition color_source.cc:38
SkRecords::dx
skia_private::AutoTArray< sk_sp< SkImageFilter > > filters TypedMatrix matrix TypedMatrix matrix SkScalar dx
Definition SkRecords.h:208
SkIRect::height
constexpr int32_t height() const
Definition SkRect.h:165
SkIRect::fTop
int32_t fTop
smaller y-axis bounds
Definition SkRect.h:34
SkIRect::width
constexpr int32_t width() const
Definition SkRect.h:158
SkIRect::makeOffset
constexpr SkIRect makeOffset(int32_t dx, int32_t dy) const
Definition SkRect.h:300
SkIRect::fLeft
int32_t fLeft
smaller x-axis bounds
Definition SkRect.h:33
SkImageInfo::MakeA8
static SkImageInfo MakeA8(int width, int height)
Definition SkImageInfo.cpp:173
SkMask::fRowBytes
const uint32_t fRowBytes
Definition SkMask.h:43
SkMask::kA8_Format
@ kA8_Format
8bits per pixel mask (e.g. antialiasing)
Definition SkMask.h:28
SkMask::fBounds
const SkIRect fBounds
Definition SkMask.h:42
SkMask::fFormat
const Format fFormat
Definition SkMask.h:44

◆ draw_rects_into_mask()

static bool draw_rects_into_mask ( const SkRect  rects[],
int  count,
SkMaskBuilder *  mask 
)
static

Definition at line 177 of file SkBlurMaskFilterImpl.cpp.

177 {
178 return draw_into_mask(mask, rects[0], [&](SkDrawBase& draw, const SkPaint& paint) {
179 if (1 == count) {
180 draw.drawRect(rects[0], paint);
181 } else {
182 // todo: do I need a fast way to do this?
183 SkPath path = SkPathBuilder().addRect(rects[0])
184 .addRect(rects[1])
185 .setFillType(SkPathFillType::kEvenOdd)
186 .detach();
187 draw.drawPath(path, paint);
188 }
189 });
190}
draw_into_mask
bool draw_into_mask(SkMaskBuilder *mask, const SkRect &bounds, Proc proc)
Definition SkBlurMaskFilterImpl.cpp:148
SkPathBuilder::addRect
SkPathBuilder & addRect(const SkRect &, SkPathDirection, unsigned startIndex)
Definition SkPathBuilder.cpp:668
SkPathBuilder::setFillType
SkPathBuilder & setFillType(SkPathFillType ft)
Definition SkPathBuilder.h:42
flutter::path
DEF_SWITCHES_START aot vmservice shared library Name of the *so containing AOT compiled Dart assets for launching the service isolate vm snapshot The VM snapshot data that will be memory mapped as read only SnapshotAssetPath must be present isolate snapshot The isolate snapshot data that will be memory mapped as read only SnapshotAssetPath must be present cache dir path
Definition switches.h:57

◆ draw_rrect_into_mask()

static bool draw_rrect_into_mask ( const SkRRect  rrect,
SkMaskBuilder *  mask 
)
static

Definition at line 192 of file SkBlurMaskFilterImpl.cpp.

192 {
193 return draw_into_mask(mask, rrect.rect(), [&](SkDrawBase& draw, const SkPaint& paint) {
194 draw.drawRRect(rrect, paint);
195 });
196}
SkRRect::rect
const SkRect & rect() const
Definition SkRRect.h:264
SkRecords::rrect
SkRRect rrect
Definition SkRecords.h:232

◆ find_cached_rects()

static SkCachedData * find_cached_rects ( SkTLazy< SkMask > *  mask,
SkScalar  sigma,
SkBlurStyle  style,
const SkRect  rects[],
int  count 
)
static

Definition at line 228 of file SkBlurMaskFilterImpl.cpp.

229 {
230 return SkMaskCache::FindAndRef(sigma, style, rects, count, mask);
231}
SkMaskCache::FindAndRef
static SkCachedData * FindAndRef(SkScalar sigma, SkBlurStyle style, const SkRRect &rrect, SkTLazy< SkMask > *mask, SkResourceCache *localCache=nullptr)
Definition SkMaskCache.cpp:88

◆ find_cached_rrect()

static SkCachedData * find_cached_rrect ( SkTLazy< SkMask > *  mask,
SkScalar  sigma,
SkBlurStyle  style,
const SkRRect &  rrect 
)
static

Definition at line 214 of file SkBlurMaskFilterImpl.cpp.

215 {
216 return SkMaskCache::FindAndRef(sigma, style, rrect, mask);
217}

◆ prepare_to_draw_into_mask()

static bool prepare_to_draw_into_mask ( const SkRect &  bounds,
SkMaskBuilder *  mask 
)
static

Definition at line 134 of file SkBlurMaskFilterImpl.cpp.

134 {
135 SkASSERT(mask != nullptr);
136
137 mask->bounds() = bounds.roundOut();
138 mask->rowBytes() = SkAlign4(mask->fBounds.width());
139 mask->format() = SkMask::kA8_Format;
140 const size_t size = mask->computeImageSize();
141 mask->image() = SkMaskBuilder::AllocImage(size, SkMaskBuilder::kZeroInit_Alloc);
142 if (nullptr == mask->fImage) {
143 return false;
144 }
145 return true;
146}
SkAlign4
static constexpr T SkAlign4(T x)
Definition SkAlign.h:16
SkRecords::bounds
Optional< SkRect > bounds
Definition SkRecords.h:189
SkMaskBuilder::kZeroInit_Alloc
@ kZeroInit_Alloc
Definition SkMask.h:293
SkMaskBuilder::format
Format & format()
Definition SkMask.h:239
SkMaskBuilder::rowBytes
uint32_t & rowBytes()
Definition SkMask.h:238
SkMaskBuilder::AllocImage
static uint8_t * AllocImage(size_t bytes, AllocType=kUninit_Alloc)
Definition SkMask.cpp:45
SkMaskBuilder::bounds
SkIRect & bounds()
Definition SkMask.h:237
SkMask::computeImageSize
size_t computeImageSize() const
Definition SkMask.cpp:30

◆ rect_exceeds()

static bool rect_exceeds ( const SkRect &  r,
SkScalar  v 
)
static

Definition at line 198 of file SkBlurMaskFilterImpl.cpp.

198 {
199 return r.fLeft < -v || r.fTop < -v || r.fRight > v || r.fBottom > v ||
200 r.width() > v || r.height() > v;
201}
SkRect::fBottom
SkScalar fBottom
larger y-axis bounds
Definition extension.cpp:17
SkRect::fLeft
SkScalar fLeft
smaller x-axis bounds
Definition extension.cpp:14
SkRect::fRight
SkScalar fRight
larger x-axis bounds
Definition extension.cpp:16
SkRect::height
constexpr float height() const
Definition SkRect.h:769
SkRect::width
constexpr float width() const
Definition SkRect.h:762
SkRect::fTop
SkScalar fTop
smaller y-axis bounds
Definition extension.cpp:15

◆ sk_register_blur_maskfilter_createproc()

void sk_register_blur_maskfilter_createproc ( )

Definition at line 533 of file SkBlurMaskFilterImpl.cpp.

533{ SK_REGISTER_FLATTENABLE(SkBlurMaskFilterImpl); }
SK_REGISTER_FLATTENABLE
#define SK_REGISTER_FLATTENABLE(type)
Definition SkFlattenable.h:105

Variable Documentation

◆ c_analyticBlurNinepatch

const bool c_analyticBlurNinepatch {true}
static

Definition at line 378 of file SkBlurMaskFilterImpl.cpp.

378{true};

◆ c_analyticBlurRRect

const bool c_analyticBlurRRect {true}
static

Definition at line 242 of file SkBlurMaskFilterImpl.cpp.

242{true};
Generated on Fri Apr 26 2024 06:18:43 for Flutter Engine by doxygen 1.9.8