Flutter Engine
The Flutter Engine
Loading...
Searching...
No Matches
Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | List of all members
PNGCodecGM Class Reference
Inheritance diagram for PNGCodecGM:
skiagm::GM

Public Types

enum class  DecodeMode { kGetAllPixels , kIncremental , kZeroInit }
 
enum class  DstColorType { kForceGrayscale , kForceNonNativePremulColor , kGetFromCanvas }
 
- Public Types inherited from skiagm::GM
enum  Mode { kGM_Mode , kSample_Mode , kBench_Mode }
 
using DrawResult = skiagm::DrawResult
 
using GraphiteTestContext = skiatest::graphite::GraphiteTestContext
 

Public Member Functions

 PNGCodecGM (std::string path, DecodeMode decodeMode, DstColorType dstColorType, SkAlphaType dstAlphaType)
 
bool isBazelOnly () const override
 
std::map< std::string, std::string > getGoldKeys () const override
 
- Public Member Functions inherited from skiagm::GM
 GM (SkColor backgroundColor=SK_ColorWHITE)
 
virtual ~GM ()
 
void setMode (Mode mode)
 
Mode getMode () const
 
DrawResult gpuSetup (SkCanvas *, SkString *errorMsg, GraphiteTestContext *=nullptr)
 
void gpuTeardown ()
 
void onceBeforeDraw ()
 
DrawResult draw (SkCanvas *canvas)
 
DrawResult draw (SkCanvas *, SkString *errorMsg)
 
void drawBackground (SkCanvas *)
 
DrawResult drawContent (SkCanvas *canvas)
 
DrawResult drawContent (SkCanvas *, SkString *errorMsg)
 
virtual bool runAsBench () const
 
SkScalar width ()
 
SkScalar height ()
 
SkColor getBGColor () const
 
void setBGColor (SkColor)
 
void drawSizeBounds (SkCanvas *, SkColor)
 
bool animate (double)
 
virtual bool onChar (SkUnichar)
 
bool getControls (SkMetaData *controls)
 
void setControls (const SkMetaData &controls)
 
virtual void modifyGrContextOptions (GrContextOptions *)
 
virtual void modifyGraphiteContextOptions (skgpu::graphite::ContextOptions *) const
 

Static Public Member Functions

static constexpr const char * DecodeModeToString (DecodeMode decodeMode)
 
static constexpr const char * DstColorTypeToString (DstColorType dstColorType)
 

Protected Member Functions

SkString getName () const override
 
SkISize getISize () override
 
DrawResult onDraw (SkCanvas *canvas, SkString *errorMsg) override
 
- Protected Member Functions inherited from skiagm::GM
virtual DrawResult onGpuSetup (SkCanvas *, SkString *, GraphiteTestContext *)
 
virtual void onGpuTeardown ()
 
virtual void onOnceBeforeDraw ()
 
virtual void onDraw (SkCanvas *)
 
virtual bool onAnimate (double)
 
virtual bool onGetControls (SkMetaData *)
 
virtual void onSetControls (const SkMetaData &)
 
GraphiteTestContext * graphiteTestContext () const
 

Additional Inherited Members

- Static Public Attributes inherited from skiagm::GM
static constexpr char kErrorMsg_DrawSkippedGpuOnly []
 

Detailed Description

Definition at line 145 of file png_codec.cpp.

Member Enumeration Documentation

◆ DecodeMode

enum class PNGCodecGM::DecodeMode
strong
Enumerator
kGetAllPixels 
kIncremental 
kZeroInit 

Definition at line 149 of file png_codec.cpp.

149 {
150 kGetAllPixels,
151 kIncremental,
152 kZeroInit,
153 };

◆ DstColorType

enum class PNGCodecGM::DstColorType
strong
Enumerator
kForceGrayscale 
kForceNonNativePremulColor 
kGetFromCanvas 

Definition at line 157 of file png_codec.cpp.

157 {
158 kForceGrayscale,
159 kForceNonNativePremulColor,
160 kGetFromCanvas,
161 };

Constructor & Destructor Documentation

◆ PNGCodecGM()

PNGCodecGM::PNGCodecGM ( std::string  path,
DecodeMode  decodeMode,
DstColorType  dstColorType,
SkAlphaType  dstAlphaType 
)
inline

Definition at line 189 of file png_codec.cpp.

193 : skiagm::GM()
194 , fPath(path)
195 , fDecodeMode(decodeMode)
196 , fDstColorType(dstColorType)
197 , fDstAlphaType(dstAlphaType) {}

Member Function Documentation

◆ DecodeModeToString()

static constexpr const char * PNGCodecGM::DecodeModeToString ( DecodeMode  decodeMode)
inlinestaticconstexpr

Definition at line 163 of file png_codec.cpp.

163 {
164 switch (decodeMode) {
165 case DecodeMode::kGetAllPixels:
166 return "kGetAllPixels";
167 case DecodeMode::kIncremental:
168 return "kIncremental";
169 case DecodeMode::kZeroInit:
170 return "kZeroInit";
171 }
172 SkUNREACHABLE;
173 }
SkUNREACHABLE
#define SkUNREACHABLE
Definition SkAssert.h:135

◆ DstColorTypeToString()

static constexpr const char * PNGCodecGM::DstColorTypeToString ( DstColorType  dstColorType)
inlinestaticconstexpr

Definition at line 175 of file png_codec.cpp.

175 {
176 switch (dstColorType) {
177 case DstColorType::kForceGrayscale:
178 return "kForceGrayscale";
179 case DstColorType::kForceNonNativePremulColor:
180 return "kForceNonNativePremulColor";
181 case DstColorType::kGetFromCanvas:
182 return "kGetFromCanvas";
183 }
184 SkUNREACHABLE;
185 }

◆ getGoldKeys()

std::map< std::string, std::string > PNGCodecGM::getGoldKeys ( ) const
inlineoverridevirtual

Reimplemented from skiagm::GM.

Definition at line 204 of file png_codec.cpp.

204 {
205 return std::map<std::string, std::string>{
206 {"name", getName().c_str()},
207 {"source_type", "image"},
208 {"decode_mode", DecodeModeToString(fDecodeMode)},
209 {"dst_color_type", DstColorTypeToString(fDstColorType)},
210 {"dst_alpha_type", sk_alpha_type_to_str(fDstAlphaType)},
211 };
212 }
PNGCodecGM::DstColorTypeToString
static constexpr const char * DstColorTypeToString(DstColorType dstColorType)
Definition png_codec.cpp:175
PNGCodecGM::getName
SkString getName() const override
Definition png_codec.cpp:217
PNGCodecGM::DecodeModeToString
static constexpr const char * DecodeModeToString(DecodeMode decodeMode)
Definition png_codec.cpp:163
SkString::c_str
const char * c_str() const
Definition SkString.h:133
sk_alpha_type_to_str
static constexpr const char * sk_alpha_type_to_str(SkAlphaType alphaType)
Definition png_codec.cpp:105

◆ getISize()

SkISize PNGCodecGM::getISize ( )
inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 224 of file png_codec.cpp.

224 {
225 DecodeResult decodeResult = decode(fPath);
226 if (decodeResult.errorMsg != "") {
227 return {0, 0};
228 }
229 return decodeResult.codec->dimensions();
230 }
decode
static DecodeResult decode(std::string path)
Definition png_codec.cpp:124
DecodeResult::codec
std::unique_ptr< SkCodec > codec
Definition png_codec.cpp:120
DecodeResult::errorMsg
std::string errorMsg
Definition png_codec.cpp:121

◆ getName()

SkString PNGCodecGM::getName ( ) const
inlineoverrideprotectedvirtual

Implements skiagm::GM.

Definition at line 217 of file png_codec.cpp.

217 {
218 SkString name = SkOSPath::Basename(fPath.c_str());
219 return name;
220 }
SkOSPath::Basename
static SkString Basename(const char *fullPath)
Definition SkOSPath.cpp:23
name
const char * name
Definition fuchsia.cc:50

◆ isBazelOnly()

bool PNGCodecGM::isBazelOnly ( ) const
inlineoverridevirtual

Reimplemented from skiagm::GM.

Definition at line 199 of file png_codec.cpp.

199 {
200 // This GM class overlaps with DM's CodecSrc and related sources.
201 return true;
202 }

◆ onDraw()

DrawResult PNGCodecGM::onDraw ( SkCanvas *  canvas,
SkString *  errorMsg 
)
inlineoverrideprotectedvirtual

Reimplemented from skiagm::GM.

Definition at line 234 of file png_codec.cpp.

234 {
235 DecodeResult decodeResult = decode(fPath);
236 if (decodeResult.errorMsg != "") {
237 *errorMsg = decodeResult.errorMsg.c_str();
238 return DrawResult::kFail;
239 }
240 std::unique_ptr<SkCodec> codec = std::move(decodeResult.codec);
241
242 SkImageInfo decodeInfo = codec->getInfo();
243 if (*errorMsg = validateCanvasColorTypeAndGetDecodeInfo(&decodeInfo,
244 canvas->imageInfo().colorType());
245 *errorMsg != SkString()) {
246 return DrawResult::kFail;
247 }
248
249 SkISize size = codec->dimensions();
250 decodeInfo = decodeInfo.makeDimensions(size);
251
252 const int bpp = decodeInfo.bytesPerPixel();
253 const size_t rowBytes = size.width() * bpp;
254 const size_t safeSize = decodeInfo.computeByteSize(rowBytes);
255 SkAutoMalloc pixels(safeSize);
256
257 SkCodec::Options options;
258 if (DecodeMode::kZeroInit == fDecodeMode) {
259 memset(pixels.get(), 0, size.height() * rowBytes);
260 options.fZeroInitialized = SkCodec::kYes_ZeroInitialized;
261 }
262
263 // For codec srcs, we want the "draw" step to be a memcpy. Any interesting color space or
264 // color format conversions should be performed by the codec. Sometimes the output of the
265 // decode will be in an interesting color space. On our srgb and f16 backends, we need to
266 // "pretend" that the color space is standard sRGB to avoid triggering color conversion
267 // at draw time.
268 SkImageInfo bitmapInfo = decodeInfo.makeColorSpace(SkColorSpace::MakeSRGB());
269
270 if (kRGBA_8888_SkColorType == decodeInfo.colorType() ||
271 kBGRA_8888_SkColorType == decodeInfo.colorType()) {
272 bitmapInfo = bitmapInfo.makeColorType(kN32_SkColorType);
273 }
274
275 switch (fDecodeMode) {
276 case DecodeMode::kZeroInit:
277 case DecodeMode::kGetAllPixels: {
278 switch (codec->getPixels(decodeInfo, pixels.get(), rowBytes, &options)) {
279 case SkCodec::kSuccess:
280 // We consider these to be valid, since we should still decode what is
281 // available.
282 case SkCodec::kErrorInInput:
283 case SkCodec::kIncompleteInput:
284 break;
285 default:
286 // Everything else is considered a failure.
287 *errorMsg = SkStringPrintf("Couldn't getPixels %s.", fPath.c_str());
288 return DrawResult::kFail;
289 }
290
291 drawToCanvas(canvas, bitmapInfo, pixels.get(), rowBytes);
292 break;
293 }
294 case DecodeMode::kIncremental: {
295 void* dst = pixels.get();
296 uint32_t height = decodeInfo.height();
297 if (SkCodec::kSuccess ==
298 codec->startIncrementalDecode(decodeInfo, dst, rowBytes, &options)) {
299 int rowsDecoded;
300 auto result = codec->incrementalDecode(&rowsDecoded);
301 if (SkCodec::kIncompleteInput == result || SkCodec::kErrorInInput == result) {
302 codec->fillIncompleteImage(decodeInfo,
303 dst,
304 rowBytes,
305 SkCodec::kNo_ZeroInitialized,
306 height,
307 rowsDecoded);
308 }
309 } else {
310 *errorMsg = "Could not start incremental decode";
311 return DrawResult::kFail;
312 }
313 drawToCanvas(canvas, bitmapInfo, dst, rowBytes);
314 break;
315 }
316 default:
317 SkASSERT(false);
318 *errorMsg = "Invalid fDecodeMode";
319 return DrawResult::kFail;
320 }
321 return DrawResult::kOk;
322 }
options
const char * options
Definition CommonFlagsConfig.cpp:43
SkASSERT
#define SkASSERT(cond)
Definition SkAssert.h:116
kBGRA_8888_SkColorType
@ kBGRA_8888_SkColorType
pixel with 8 bits for blue, green, red, alpha; in 32-bit word
Definition SkColorType.h:26
kRGBA_8888_SkColorType
@ kRGBA_8888_SkColorType
pixel with 8 bits for red, green, blue, alpha; in 32-bit word
Definition SkColorType.h:24
SkStringPrintf
SK_API SkString static SkString SkStringPrintf()
Definition SkString.h:287
SkCanvas::imageInfo
SkImageInfo imageInfo() const
Definition SkCanvas.cpp:1530
SkCodec::kYes_ZeroInitialized
@ kYes_ZeroInitialized
Definition SkCodec.h:308
SkCodec::kNo_ZeroInitialized
@ kNo_ZeroInitialized
Definition SkCodec.h:315
SkCodec::kIncompleteInput
@ kIncompleteInput
Definition SkCodec.h:84
SkCodec::kSuccess
@ kSuccess
Definition SkCodec.h:80
SkCodec::kErrorInInput
@ kErrorInInput
Definition SkCodec.h:91
SkColorSpace::MakeSRGB
static sk_sp< SkColorSpace > MakeSRGB()
Definition SkColorSpace.cpp:87
skiagm::GM::height
SkScalar height()
Definition gm.h:162
result
GAsyncResult * result
Definition fl_text_input_plugin.cc:106
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
gn.cp.dst
dst
Definition cp.py:12
SkImageInfo::computeByteSize
size_t computeByteSize(size_t rowBytes) const
Definition SkImageInfo.cpp:104
SkImageInfo::makeDimensions
SkImageInfo makeDimensions(SkISize newSize) const
Definition SkImageInfo.h:454
SkImageInfo::bytesPerPixel
int bytesPerPixel() const
Definition SkImageInfo.h:492
SkImageInfo::makeColorSpace
SkImageInfo makeColorSpace(sk_sp< SkColorSpace > cs) const
Definition SkImageInfo.cpp:123
SkImageInfo::colorType
SkColorType colorType() const
Definition SkImageInfo.h:373
SkImageInfo::height
int height() const
Definition SkImageInfo.h:371
SkImageInfo::makeColorType
SkImageInfo makeColorType(SkColorType newColorType) const
Definition SkImageInfo.h:475
The documentation for this class was generated from the following file:
Generated on Fri Apr 26 2024 06:19:39 for Flutter Engine by doxygen 1.9.8