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SkImage Reference
===
# <a name='Image'>Image</a>
# <a name='SkImage'>Class SkImage</a>
## <a name='Constant'>Constant</a>
SkImage related constants are defined by <code>enum</code>, <code>enum class</code>, <code>#define</code>, <code>const</code>, and <code>constexpr</code>.
<table style='border-collapse: collapse; width: 62.5em'>
<tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th>
<th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_BitDepth_kF16'>BitDepth::kF16</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>uses 16-bit float per <a href='SkColor_Reference#Color'>Color</a> component</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_BitDepth_kU8'>BitDepth::kU8</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>uses 8-bit unsigned int per <a href='SkColor_Reference#Color'>Color</a> component</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_BitDepth'>BitDepth</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>options for <a href='#SkImage_MakeFromPicture'>MakeFromPicture</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_CachingHint'>CachingHint</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>options for <a href='#SkImage_readPixels'>readPixels</a> and <a href='#SkImage_scalePixels'>scalePixels</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_kAllow_CachingHint'>kAllow CachingHint</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>allows internally caching decoded and copied pixels</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_kDisallow_CachingHint'>kDisallow CachingHint</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>disallows internally caching decoded and copied pixels</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_kRO_LegacyBitmapMode'>kRO LegacyBitmapMode</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returned bitmap is read-only and immutable</td>
</tr>
</table>
## <a name='Typedef'>Typedef</a>
SkImage <code>typedef</code> define a data type.
<table style='border-collapse: collapse; width: 62.5em'>
<tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th>
<th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_BackendTextureReleaseProc'>BackendTextureReleaseProc</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>parameter type for <a href='#SkImage_MakeBackendTextureFromSkImage'>MakeBackendTextureFromSkImage</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_RasterReleaseProc'>RasterReleaseProc</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>parameter type for <a href='#SkImage_MakeFromRaster'>MakeFromRaster</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_ReleaseContext'>ReleaseContext</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>parameter type for <a href='#SkImage_MakeFromRaster'>MakeFromRaster</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_TextureReleaseProc'>TextureReleaseProc</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>parameter type for <a href='#SkImage_MakeFromTexture'>MakeFromTexture</a></td>
</tr>
</table>
<a href='#Image'>Image</a> describes a two dimensional array of pixels to draw. The pixels may be
decoded in a <a href='undocumented#Raster_Bitmap'>Raster Bitmap</a>, encoded in a <a href='SkPicture_Reference#Picture'>Picture</a> or compressed data stream,
or located in GPU memory as a <a href='undocumented#GPU_Texture'>GPU Texture</a>.
<a href='#Image'>Image</a> cannot be modified after it is created. <a href='#Image'>Image</a> may allocate additional
storage as needed; for instance, an encoded <a href='#Image'>Image</a> may decode when drawn.
<a href='#Image'>Image</a> width and height are greater than zero. Creating an <a href='#Image'>Image</a> with zero width
or height returns <a href='#Image'>Image</a> equal to nullptr.
<a href='#Image'>Image</a> may be created from <a href='SkBitmap_Reference#Bitmap'>Bitmap</a>, <a href='SkPixmap_Reference#Pixmap'>Pixmap</a>, <a href='SkSurface_Reference#Surface'>Surface</a>, <a href='SkPicture_Reference#Picture'>Picture</a>, encoded streams,
<a href='undocumented#GPU_Texture'>GPU Texture</a>, <a href='SkImageInfo_Reference#YUV_ColorSpace'>YUV ColorSpace</a> data, or hardware buffer. Encoded streams supported
include BMP, GIF, HEIF, ICO, JPEG, PNG, WBMP, WebP. Supported encoding details
vary with platform.
## <a name='Raster_Image'>Raster Image</a>
<a href='#Raster_Image'>Raster Image</a> pixels are decoded in a <a href='undocumented#Raster_Bitmap'>Raster Bitmap</a>. These pixels may be read
directly and in most cases written to, although edited pixels may not be drawn
if <a href='#Image'>Image</a> has been copied internally.
## <a name='Texture_Image'>Texture Image</a>
<a href='#Texture_Image'>Texture Image</a> are located on GPU and pixels are not accessible. <a href='#Texture_Image'>Texture Image</a>
are allocated optimally for best performance. <a href='#Raster_Image'>Raster Image</a> may
be drawn to <a href='undocumented#GPU_Surface'>GPU Surface</a>, but pixels are uploaded from CPU to GPU downgrading
performance.
## <a name='Lazy_Image'>Lazy Image</a>
<a href='#Lazy_Image'>Lazy Image</a> defer allocating buffer for <a href='#Image'>Image</a> pixels and decoding stream until
<a href='#Image'>Image</a> is drawn. <a href='#Lazy_Image'>Lazy Image</a> caches result if possible to speed up repeated
drawing.
## Overview
<table style='border-collapse: collapse; width: 62.5em'>
<tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th>
<th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Constant'>Constants</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>enum and enum class, and their const values</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Constructor'>Constructors</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>functions that construct <a href='#SkImage'>SkImage</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Member_Function'>Functions</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>global and class member functions</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Related_Function'>Related Functions</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>similar member functions grouped together</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Typedef'>Typedef Declarations</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>types defined by other types</td>
</tr>
</table>
## <a name='Related_Function'>Related Function</a>
SkImage global, <code>struct</code>, and <code>class</code> related member functions share a topic.
<table style='border-collapse: collapse; width: 62.5em'>
<tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th>
<th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Lazy_Image'>Lazy Image</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>deferred pixel buffer</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Pixels'>Pixels</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>read and write pixel values</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Property'>Property</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>values and attributes</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Raster_Image'>Raster Image</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>pixels decoded in <a href='undocumented#Raster_Bitmap'>Raster Bitmap</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Texture_Image'>Texture Image</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>pixels located on GPU</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#Utility'>Utility</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>rarely called management functions</td>
</tr>
</table>
## <a name='Constructor'>Constructor</a>
SkImage can be constructed or initialized by these functions, including C++ class constructors.
<table style='border-collapse: collapse; width: 62.5em'>
<tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th>
<th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeBackendTextureFromSkImage'>MakeBackendTextureFromSkImage</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='undocumented#GPU_Texture'>GPU Texture</a> from <a href='#Image'>Image</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeCrossContextFromEncoded'>MakeCrossContextFromEncoded</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from encoded data, and uploads to GPU</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeCrossContextFromPixmap'>MakeCrossContextFromPixmap</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkPixmap_Reference#Pixmap'>Pixmap</a>, and uploads to GPU</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromAHardwareBuffer'>MakeFromAHardwareBuffer</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from Android hardware buffer</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromAdoptedTexture'>MakeFromAdoptedTexture</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='undocumented#GPU_Texture'>GPU Texture</a>, managed internally</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromBitmap'>MakeFromBitmap</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkBitmap_Reference#Bitmap'>Bitmap</a>, sharing or copying pixels</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromEncoded'>MakeFromEncoded</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from encoded data</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromGenerator'>MakeFromGenerator</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from a stream of data</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromNV12TexturesCopy'>MakeFromNV12TexturesCopy</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkImageInfo_Reference#YUV_ColorSpace'>YUV ColorSpace</a> data in three planes</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromPicture'>MakeFromPicture</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkPicture_Reference#Picture'>Picture</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromRaster'>MakeFromRaster</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkPixmap_Reference#Pixmap'>Pixmap</a>, with release</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromTexture'>MakeFromTexture</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='undocumented#GPU_Texture'>GPU Texture</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromTexture'>MakeFromTexture(GrContext* context, const GrBackendTexture& backendTexture, GrSurfaceOrigin origin, SkColorType colorType, SkAlphaType alphaType, sk sp&lt;SkColorSpace&gt; colorSpace)</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromTexture_2'>MakeFromTexture(GrContext* context, const GrBackendTexture& backendTexture, GrSurfaceOrigin origin, SkColorType colorType, SkAlphaType alphaType, sk sp&lt;SkColorSpace&gt; colorSpace, TextureReleaseProc textureReleaseProc, ReleaseContext releaseContext)</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromYUVTexturesCopy'>MakeFromYUVTexturesCopy</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkImageInfo_Reference#YUV_ColorSpace'>YUV ColorSpace</a> data in three planes</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeRasterCopy'>MakeRasterCopy</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkPixmap_Reference#Pixmap'>Pixmap</a> and copied pixels</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeRasterData'>MakeRasterData</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkImageInfo_Reference#Image_Info'>Image Info</a> and shared pixels</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_asLegacyBitmap'>asLegacyBitmap</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns as <a href='undocumented#Raster_Bitmap'>Raster Bitmap</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeColorSpace'>makeColorSpace</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> matching <a href='undocumented#Color_Space'>Color Space</a> if possible</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeNonTextureImage'>makeNonTextureImage</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> without dependency on <a href='undocumented#GPU_Texture'>GPU Texture</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeRasterImage'>makeRasterImage</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> compatible with <a href='undocumented#Raster_Surface'>Raster Surface</a> if possible</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeShader'>makeShader</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='undocumented#Shader'>Shader</a>, <a href='SkPaint_Reference#Paint'>Paint</a> element that can tile <a href='#Image'>Image</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeShader'>makeShader(SkShader::TileMode tileMode1, SkShader::TileMode tileMode2, const SkMatrix* localMatrix = nullptr)</a> const</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeShader_2'>makeShader(const SkMatrix* localMatrix = nullptr)</a> const</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeSubset'>makeSubset</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> containing part of original</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeTextureImage'>makeTextureImage</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> matching <a href='undocumented#Color_Space'>Color Space</a> if possible</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeWithFilter'>makeWithFilter</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates filtered, clipped <a href='#Image'>Image</a></td>
</tr>
</table>
## <a name='Member_Function'>Member Function</a>
SkImage member functions read and modify the structure properties.
<table style='border-collapse: collapse; width: 62.5em'>
<tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th>
<th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeBackendTextureFromSkImage'>MakeBackendTextureFromSkImage</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='undocumented#GPU_Texture'>GPU Texture</a> from <a href='#Image'>Image</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeCrossContextFromEncoded'>MakeCrossContextFromEncoded</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from encoded data, and uploads to GPU</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeCrossContextFromPixmap'>MakeCrossContextFromPixmap</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkPixmap_Reference#Pixmap'>Pixmap</a>, and uploads to GPU</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromAHardwareBuffer'>MakeFromAHardwareBuffer</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from Android hardware buffer</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromAdoptedTexture'>MakeFromAdoptedTexture</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='undocumented#GPU_Texture'>GPU Texture</a>, managed internally</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromBitmap'>MakeFromBitmap</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkBitmap_Reference#Bitmap'>Bitmap</a>, sharing or copying pixels</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromEncoded'>MakeFromEncoded</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from encoded data</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromGenerator'>MakeFromGenerator</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from a stream of data</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromNV12TexturesCopy'>MakeFromNV12TexturesCopy</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkImageInfo_Reference#YUV_ColorSpace'>YUV ColorSpace</a> data in three planes</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromPicture'>MakeFromPicture</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkPicture_Reference#Picture'>Picture</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromRaster'>MakeFromRaster</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkPixmap_Reference#Pixmap'>Pixmap</a>, with release</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromTexture'>MakeFromTexture</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='undocumented#GPU_Texture'>GPU Texture</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeFromYUVTexturesCopy'>MakeFromYUVTexturesCopy</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkImageInfo_Reference#YUV_ColorSpace'>YUV ColorSpace</a> data in three planes</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeRasterCopy'>MakeRasterCopy</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkPixmap_Reference#Pixmap'>Pixmap</a> and copied pixels</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_MakeRasterData'>MakeRasterData</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> from <a href='SkImageInfo_Reference#Image_Info'>Image Info</a> and shared pixels</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_alphaType'>alphaType</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_asLegacyBitmap'>asLegacyBitmap</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns as <a href='undocumented#Raster_Bitmap'>Raster Bitmap</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_bounds'>bounds</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#SkImage_width'>width</a> and <a href='#SkImage_height'>height</a> as Rectangle</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_colorSpace'>colorSpace</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='undocumented#Color_Space'>Color Space</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_colorType'>colorType</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='SkImageInfo_Reference#Color_Type'>Color Type</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_dimensions'>dimensions</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#SkImage_width'>width</a> and <a href='#SkImage_height'>height</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_encodeToData'>encodeToData</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns encoded <a href='#Image'>Image</a> as <a href='undocumented#SkData'>SkData</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_getBackendTexture'>getBackendTexture</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns GPU reference to <a href='#Image'>Image</a> as texture</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_height'>height</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns pixel row count</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_isAlphaOnly'>isAlphaOnly</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns if pixels represent a transparency mask</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_isLazyGenerated'>isLazyGenerated</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns if <a href='#Image'>Image</a> is created as needed</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_isOpaque'>isOpaque</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns if <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a> is <a href='SkImageInfo_Reference#kOpaque_SkAlphaType'>kOpaque_SkAlphaType</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_isTextureBacked'>isTextureBacked</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns if <a href='#Image'>Image</a> was created from <a href='undocumented#GPU_Texture'>GPU Texture</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_isValid'>isValid</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns if <a href='#Image'>Image</a> can draw to <a href='undocumented#Raster_Surface'>Raster Surface</a> or <a href='undocumented#GPU_Context'>GPU Context</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeColorSpace'>makeColorSpace</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> matching <a href='undocumented#Color_Space'>Color Space</a> if possible</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeNonTextureImage'>makeNonTextureImage</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> without dependency on <a href='undocumented#GPU_Texture'>GPU Texture</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeRasterImage'>makeRasterImage</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> compatible with <a href='undocumented#Raster_Surface'>Raster Surface</a> if possible</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeShader'>makeShader</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='undocumented#Shader'>Shader</a>, <a href='SkPaint_Reference#Paint'>Paint</a> element that can tile <a href='#Image'>Image</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeSubset'>makeSubset</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> containing part of original</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeTextureImage'>makeTextureImage</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates <a href='#Image'>Image</a> matching <a href='undocumented#Color_Space'>Color Space</a> if possible</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_makeWithFilter'>makeWithFilter</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>creates filtered, clipped <a href='#Image'>Image</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_peekPixels'>peekPixels</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='SkPixmap_Reference#Pixmap'>Pixmap</a> if possible</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_readPixels'>readPixels</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>copies and converts pixels</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_refColorSpace'>refColorSpace</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='SkImageInfo_Reference#Image_Info'>Image Info</a> <a href='undocumented#Color_Space'>Color Space</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_refEncodedData'>refEncodedData</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#Image'>Image</a> encoded in <a href='undocumented#SkData'>SkData</a> if present</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_scalePixels'>scalePixels</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>scales and converts one <a href='#Image'>Image</a> to another</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_uniqueID'>uniqueID</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns identifier for <a href='#Image'>Image</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_width'>width</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns pixel column count</td>
</tr>
</table>
<a name='SkImage_MakeRasterCopy'></a>
## MakeRasterCopy
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeRasterCopy'>MakeRasterCopy</a>(const <a href='SkPixmap_Reference#SkPixmap'>SkPixmap</a>& pixmap)
</pre>
Creates <a href='#Image'>Image</a> from <a href='SkPixmap_Reference#Pixmap'>Pixmap</a> and copy of pixels. Since pixels are copied, <a href='SkPixmap_Reference#Pixmap'>Pixmap</a>
pixels may be modified or deleted without affecting <a href='#Image'>Image</a>.
<a href='#Image'>Image</a> is returned if <a href='SkPixmap_Reference#Pixmap'>Pixmap</a> is valid. Valid <a href='SkPixmap_Reference#Pixmap'>Pixmap</a> parameters include:
dimensions are greater than zero;
each dimension fits in 29 bits;
<a href='SkImageInfo_Reference#Color_Type'>Color Type</a> and <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a> are valid, and <a href='SkImageInfo_Reference#Color_Type'>Color Type</a> is not <a href='SkImageInfo_Reference#kUnknown_SkColorType'>kUnknown_SkColorType</a>;
row bytes are large enough to hold one row of pixels;
pixel address is not nullptr.
### Parameters
<table> <tr> <td><a name='SkImage_MakeRasterCopy_pixmap'><code><strong>pixmap</strong></code></a></td>
<td><a href='SkImageInfo_Reference#Image_Info'>Image Info</a>, pixel address, and row bytes</td>
</tr>
</table>
### Return Value
copy of <a href='SkPixmap_Reference#Pixmap'>Pixmap</a> pixels, or nullptr
### Example
<div><fiddle-embed name="513afec5795a9504ebf6af5373d16b6b"><div>Draw a five by five bitmap, and draw a copy in an <a href='#Image'>Image</a>. Editing the <a href='#SkImage_MakeRasterCopy_pixmap'>pixmap</a>
alters the bitmap draw, but does not alter the <a href='#Image'>Image</a> draw since the <a href='#Image'>Image</a>
contains a copy of the pixels.
</div></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeRasterData'>MakeRasterData</a> <a href='#SkImage_MakeFromGenerator'>MakeFromGenerator</a>
---
<a name='SkImage_MakeRasterData'></a>
## MakeRasterData
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeRasterData'>MakeRasterData</a>(const <a href='SkImageInfo_Reference#SkImageInfo'>SkImageInfo</a>& info, <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkData'>SkData</a>&gt; pixels, size_t rowBytes)
</pre>
Creates <a href='#Image'>Image</a> from <a href='SkImageInfo_Reference#Image_Info'>Image Info</a>, sharing <a href='#SkImage_MakeRasterData_pixels'>pixels</a>.
<a href='#Image'>Image</a> is returned if <a href='SkImageInfo_Reference#Image_Info'>Image Info</a> is valid. Valid <a href='SkImageInfo_Reference#Image_Info'>Image Info</a> parameters include:
dimensions are greater than zero;
each dimension fits in 29 bits;
<a href='SkImageInfo_Reference#Color_Type'>Color Type</a> and <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a> are valid, and <a href='SkImageInfo_Reference#Color_Type'>Color Type</a> is not <a href='SkImageInfo_Reference#kUnknown_SkColorType'>kUnknown_SkColorType</a>;
<a href='#SkImage_MakeRasterData_rowBytes'>rowBytes</a> are large enough to hold one row of <a href='#SkImage_MakeRasterData_pixels'>pixels</a>;
<a href='#SkImage_MakeRasterData_pixels'>pixels</a> is not nullptr, and contains enough data for <a href='#Image'>Image</a>.
### Parameters
<table> <tr> <td><a name='SkImage_MakeRasterData_info'><code><strong>info</strong></code></a></td>
<td>contains width, height, <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a>, <a href='SkImageInfo_Reference#Color_Type'>Color Type</a>, <a href='undocumented#Color_Space'>Color Space</a></td>
</tr>
<tr> <td><a name='SkImage_MakeRasterData_pixels'><code><strong>pixels</strong></code></a></td>
<td>address or pixel storage</td>
</tr>
<tr> <td><a name='SkImage_MakeRasterData_rowBytes'><code><strong>rowBytes</strong></code></a></td>
<td>size of pixel row or larger</td>
</tr>
</table>
### Return Value
<a href='#Image'>Image</a> sharing <a href='#SkImage_MakeRasterData_pixels'>pixels</a>, or nullptr
### Example
<div><fiddle-embed name="22e7ce79ab2fe94252d23319f2258127"></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeRasterCopy'>MakeRasterCopy</a> <a href='#SkImage_MakeFromGenerator'>MakeFromGenerator</a>
---
## <a name='SkImage_ReleaseContext'>Typedef SkImage::ReleaseContext</a>
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
typedef void* <a href='#SkImage_ReleaseContext'>ReleaseContext</a>;
</pre>
Caller data passed to <a href='#SkImage_RasterReleaseProc'>RasterReleaseProc</a>; may be nullptr.
### See Also
<a href='#SkImage_MakeFromRaster'>MakeFromRaster</a> <a href='#SkImage_RasterReleaseProc'>RasterReleaseProc</a>
## <a name='SkImage_RasterReleaseProc'>Typedef SkImage::RasterReleaseProc</a>
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
typedef void (*<a href='#SkImage_RasterReleaseProc'>RasterReleaseProc</a>)(const void* pixels, <a href='#SkImage_ReleaseContext'>ReleaseContext</a>);
</pre>
Function called when <a href='#Image'>Image</a> no longer shares pixels. <a href='#SkImage_ReleaseContext'>ReleaseContext</a> is
provided by caller when <a href='#Image'>Image</a> is created, and may be nullptr.
### See Also
<a href='#SkImage_ReleaseContext'>ReleaseContext</a> <a href='#SkImage_MakeFromRaster'>MakeFromRaster</a>
<a name='SkImage_MakeFromRaster'></a>
## MakeFromRaster
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeFromRaster'>MakeFromRaster</a>(const <a href='SkPixmap_Reference#SkPixmap'>SkPixmap</a>& pixmap, <a href='#SkImage_RasterReleaseProc'>RasterReleaseProc</a> rasterReleaseProc,
<a href='#SkImage_ReleaseContext'>ReleaseContext</a> releaseContext)
</pre>
Creates <a href='#Image'>Image</a> from <a href='#SkImage_MakeFromRaster_pixmap'>pixmap</a>, sharing <a href='SkPixmap_Reference#Pixmap'>Pixmap</a> pixels. <a href='#Pixels'>Pixels</a> must remain valid and
unchanged until <a href='#SkImage_MakeFromRaster_rasterReleaseProc'>rasterReleaseProc</a> is called. <a href='#SkImage_MakeFromRaster_rasterReleaseProc'>rasterReleaseProc</a> is passed
<a href='#SkImage_MakeFromRaster_releaseContext'>releaseContext</a> when <a href='#Image'>Image</a> is deleted or no longer refers to <a href='#SkImage_MakeFromRaster_pixmap'>pixmap</a> pixels.
Pass nullptr for <a href='#SkImage_MakeFromRaster_rasterReleaseProc'>rasterReleaseProc</a> to share <a href='SkPixmap_Reference#Pixmap'>Pixmap</a> without requiring a callback
when <a href='#Image'>Image</a> is released. Pass nullptr for <a href='#SkImage_MakeFromRaster_releaseContext'>releaseContext</a> if <a href='#SkImage_MakeFromRaster_rasterReleaseProc'>rasterReleaseProc</a>
does not require state.
<a href='#Image'>Image</a> is returned if <a href='#SkImage_MakeFromRaster_pixmap'>pixmap</a> is valid. Valid <a href='SkPixmap_Reference#Pixmap'>Pixmap</a> parameters include:
dimensions are greater than zero;
each dimension fits in 29 bits;
<a href='SkImageInfo_Reference#Color_Type'>Color Type</a> and <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a> are valid, and <a href='SkImageInfo_Reference#Color_Type'>Color Type</a> is not <a href='SkImageInfo_Reference#kUnknown_SkColorType'>kUnknown_SkColorType</a>;
row bytes are large enough to hold one row of pixels;
pixel address is not nullptr.
### Parameters
<table> <tr> <td><a name='SkImage_MakeFromRaster_pixmap'><code><strong>pixmap</strong></code></a></td>
<td><a href='SkImageInfo_Reference#Image_Info'>Image Info</a>, pixel address, and row bytes</td>
</tr>
<tr> <td><a name='SkImage_MakeFromRaster_rasterReleaseProc'><code><strong>rasterReleaseProc</strong></code></a></td>
<td>function called when pixels can be released; or nullptr</td>
</tr>
<tr> <td><a name='SkImage_MakeFromRaster_releaseContext'><code><strong>releaseContext</strong></code></a></td>
<td>state passed to <a href='#SkImage_MakeFromRaster_rasterReleaseProc'>rasterReleaseProc</a>; or nullptr</td>
</tr>
</table>
### Return Value
<a href='#Image'>Image</a> sharing <a href='#SkImage_MakeFromRaster_pixmap'>pixmap</a>
### Example
<div><fiddle-embed name="275356b65d18c8868f4434137350cddc">
#### Example Output
~~~~
before reset: 0
after reset: 1
~~~~
</fiddle-embed></div>
### See Also
<a href='#SkImage_MakeRasterCopy'>MakeRasterCopy</a> <a href='#SkImage_MakeRasterData'>MakeRasterData</a> <a href='#SkImage_MakeFromGenerator'>MakeFromGenerator</a> <a href='#SkImage_RasterReleaseProc'>RasterReleaseProc</a> <a href='#SkImage_ReleaseContext'>ReleaseContext</a>
---
<a name='SkImage_MakeFromBitmap'></a>
## MakeFromBitmap
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeFromBitmap'>MakeFromBitmap</a>(const <a href='SkBitmap_Reference#SkBitmap'>SkBitmap</a>& bitmap)
</pre>
Creates <a href='#Image'>Image</a> from <a href='#SkImage_MakeFromBitmap_bitmap'>bitmap</a>, sharing or copying <a href='#SkImage_MakeFromBitmap_bitmap'>bitmap</a> pixels. If the <a href='#SkImage_MakeFromBitmap_bitmap'>bitmap</a>
is marked immutable, and its pixel memory is shareable, it may be shared
instead of copied.
<a href='#Image'>Image</a> is returned if <a href='#SkImage_MakeFromBitmap_bitmap'>bitmap</a> is valid. Valid <a href='SkBitmap_Reference#Bitmap'>Bitmap</a> parameters include:
dimensions are greater than zero;
each dimension fits in 29 bits;
<a href='SkImageInfo_Reference#Color_Type'>Color Type</a> and <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a> are valid, and <a href='SkImageInfo_Reference#Color_Type'>Color Type</a> is not <a href='SkImageInfo_Reference#kUnknown_SkColorType'>kUnknown_SkColorType</a>;
row bytes are large enough to hold one row of pixels;
pixel address is not nullptr.
### Parameters
<table> <tr> <td><a name='SkImage_MakeFromBitmap_bitmap'><code><strong>bitmap</strong></code></a></td>
<td><a href='SkImageInfo_Reference#Image_Info'>Image Info</a>, row bytes, and pixels</td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="cf2cf53321e4e6a77c2841bfbc0ef707"><div>The first <a href='SkBitmap_Reference#Bitmap'>Bitmap</a> is shared; writing to the pixel memory changes the first
<a href='#Image'>Image</a>.
The second <a href='SkBitmap_Reference#Bitmap'>Bitmap</a> is marked immutable, and is copied; writing to the pixel
memory does not alter the second <a href='#Image'>Image</a>.
</div></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeFromRaster'>MakeFromRaster</a> <a href='#SkImage_MakeRasterCopy'>MakeRasterCopy</a> <a href='#SkImage_MakeFromGenerator'>MakeFromGenerator</a> <a href='#SkImage_MakeRasterData'>MakeRasterData</a>
---
<a name='SkImage_MakeFromGenerator'></a>
## MakeFromGenerator
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeFromGenerator'>MakeFromGenerator</a>(std::unique_ptr&lt;<a href='undocumented#SkImageGenerator'>SkImageGenerator</a>&gt; imageGenerator,
const <a href='SkIRect_Reference#SkIRect'>SkIRect</a>* subset = nullptr)
</pre>
Creates <a href='#Image'>Image</a> from data returned by <a href='#SkImage_MakeFromGenerator_imageGenerator'>imageGenerator</a>. Generated data is owned by <a href='#Image'>Image</a> and may not
be shared or accessed.
<a href='#SkImage_MakeFromGenerator_subset'>subset</a> allows selecting a portion of the full image. Pass nullptr to select the entire image;
otherwise, <a href='#SkImage_MakeFromGenerator_subset'>subset</a> must be contained by image bounds.
<a href='#Image'>Image</a> is returned if generator data is valid. Valid data parameters vary by type of data
and platform.
<a href='#SkImage_MakeFromGenerator_imageGenerator'>imageGenerator</a> may wrap <a href='SkPicture_Reference#Picture'>Picture</a> data, codec data, or custom data.
### Parameters
<table> <tr> <td><a name='SkImage_MakeFromGenerator_imageGenerator'><code><strong>imageGenerator</strong></code></a></td>
<td>stock or custom routines to retrieve <a href='#Image'>Image</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromGenerator_subset'><code><strong>subset</strong></code></a></td>
<td>bounds of returned <a href='#Image'>Image</a>; may be nullptr</td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="c2fec0746f88ca34d7dce59dd9bdef9e"><div>The generator returning <a href='SkPicture_Reference#Picture'>Picture</a> cannot be shared; std::move transfers ownership to generated <a href='#Image'>Image</a>.
</div></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeFromEncoded'>MakeFromEncoded</a>
---
<a name='SkImage_MakeFromEncoded'></a>
## MakeFromEncoded
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeFromEncoded'>MakeFromEncoded</a>(<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkData'>SkData</a>&gt; encoded, const <a href='SkIRect_Reference#SkIRect'>SkIRect</a>* subset = nullptr)
</pre>
Creates <a href='#Image'>Image</a> from <a href='#SkImage_MakeFromEncoded_encoded'>encoded</a> data.
<a href='#SkImage_MakeFromEncoded_subset'>subset</a> allows selecting a portion of the full image. Pass nullptr to select the entire image;
otherwise, <a href='#SkImage_MakeFromEncoded_subset'>subset</a> must be contained by image bounds.
<a href='#Image'>Image</a> is returned if format of the <a href='#SkImage_MakeFromEncoded_encoded'>encoded</a> data is recognized and supported.
Recognized formats vary by platform.
### Parameters
<table> <tr> <td><a name='SkImage_MakeFromEncoded_encoded'><code><strong>encoded</strong></code></a></td>
<td>data of <a href='#Image'>Image</a> to decode</td>
</tr>
<tr> <td><a name='SkImage_MakeFromEncoded_subset'><code><strong>subset</strong></code></a></td>
<td>bounds of returned <a href='#Image'>Image</a>; may be nullptr</td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="894f732ed6409b1f392bc5481421d0e9"></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeFromGenerator'>MakeFromGenerator</a>
---
## <a name='SkImage_TextureReleaseProc'>Typedef SkImage::TextureReleaseProc</a>
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
typedef void (*<a href='#SkImage_TextureReleaseProc'>TextureReleaseProc</a>)(<a href='#SkImage_ReleaseContext'>ReleaseContext</a> releaseContext);
</pre>
User function called when supplied texture may be deleted.
### See Also
<a href='#SkImage_MakeFromTexture'>MakeFromTexture</a><sup><a href='#SkImage_MakeFromTexture_2'>[2]</a></sup>
<a name='SkImage_MakeFromTexture'></a>
## MakeFromTexture
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeFromTexture'>MakeFromTexture</a>(<a href='undocumented#GrContext'>GrContext</a>* context, const <a href='undocumented#GrBackendTexture'>GrBackendTexture</a>& backendTexture,
<a href='undocumented#GrSurfaceOrigin'>GrSurfaceOrigin</a> origin, <a href='SkImageInfo_Reference#SkColorType'>SkColorType</a> <a href='#SkImage_colorType'>colorType</a>,
<a href='SkImageInfo_Reference#SkAlphaType'>SkAlphaType</a> <a href='#SkImage_alphaType'>alphaType</a>, <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkColorSpace'>SkColorSpace</a>&gt; <a href='#SkImage_colorSpace'>colorSpace</a>)
</pre>
Creates <a href='#Image'>Image</a> from <a href='undocumented#GPU_Texture'>GPU Texture</a> associated with <a href='#SkImage_MakeFromTexture_context'>context</a>. Caller is responsible for
managing the lifetime of <a href='undocumented#GPU_Texture'>GPU Texture</a>.
<a href='#Image'>Image</a> is returned if format of <a href='#SkImage_MakeFromTexture_backendTexture'>backendTexture</a> is recognized and supported.
Recognized formats vary by GPU back-end.
### Parameters
<table> <tr> <td><a name='SkImage_MakeFromTexture_context'><code><strong>context</strong></code></a></td>
<td><a href='undocumented#GPU_Context'>GPU Context</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromTexture_backendTexture'><code><strong>backendTexture</strong></code></a></td>
<td>texture residing on GPU</td>
</tr>
<tr> <td><a name='SkImage_MakeFromTexture_origin'><code><strong>origin</strong></code></a></td>
<td>one of: <a href='undocumented#kBottomLeft_GrSurfaceOrigin'>kBottomLeft GrSurfaceOrigin</a>, <a href='undocumented#kTopLeft_GrSurfaceOrigin'>kTopLeft GrSurfaceOrigin</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromTexture_colorType'><code><strong>colorType</strong></code></a></td>
<td>one of: <a href='SkImageInfo_Reference#kUnknown_SkColorType'>kUnknown_SkColorType</a>, <a href='SkImageInfo_Reference#kAlpha_8_SkColorType'>kAlpha_8_SkColorType</a>, <a href='SkImageInfo_Reference#kRGB_565_SkColorType'>kRGB_565_SkColorType</a>,
<a href='SkImageInfo_Reference#kARGB_4444_SkColorType'>kARGB_4444_SkColorType</a>, <a href='SkImageInfo_Reference#kRGBA_8888_SkColorType'>kRGBA_8888_SkColorType</a>, <a href='SkImageInfo_Reference#kRGB_888x_SkColorType'>kRGB_888x_SkColorType</a>,
<a href='SkImageInfo_Reference#kBGRA_8888_SkColorType'>kBGRA_8888_SkColorType</a>, <a href='SkImageInfo_Reference#kRGBA_1010102_SkColorType'>kRGBA_1010102_SkColorType</a>, <a href='SkImageInfo_Reference#kRGB_101010x_SkColorType'>kRGB_101010x_SkColorType</a>,
<a href='SkImageInfo_Reference#kGray_8_SkColorType'>kGray_8_SkColorType</a>, <a href='SkImageInfo_Reference#kRGBA_F16_SkColorType'>kRGBA_F16_SkColorType</a> </td>
</tr>
<tr> <td><a name='SkImage_MakeFromTexture_alphaType'><code><strong>alphaType</strong></code></a></td>
<td>one of: <a href='SkImageInfo_Reference#kUnknown_SkAlphaType'>kUnknown_SkAlphaType</a>, <a href='SkImageInfo_Reference#kOpaque_SkAlphaType'>kOpaque_SkAlphaType</a>, <a href='SkImageInfo_Reference#kPremul_SkAlphaType'>kPremul_SkAlphaType</a>,
<a href='SkImageInfo_Reference#kUnpremul_SkAlphaType'>kUnpremul_SkAlphaType</a> </td>
</tr>
<tr> <td><a name='SkImage_MakeFromTexture_colorSpace'><code><strong>colorSpace</strong></code></a></td>
<td>range of colors; may be nullptr</td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="94e9296c53bad074bf2a48ff885dac13" gpu="true"><div>A back-end texture has been created and uploaded to the GPU outside of this example.
</div></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeFromAdoptedTexture'>MakeFromAdoptedTexture</a> <a href='SkSurface_Reference#SkSurface_MakeFromBackendTexture'>SkSurface::MakeFromBackendTexture</a>
---
<a name='SkImage_MakeFromTexture_2'></a>
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeFromTexture'>MakeFromTexture</a>(<a href='undocumented#GrContext'>GrContext</a>* context, const <a href='undocumented#GrBackendTexture'>GrBackendTexture</a>& backendTexture,
<a href='undocumented#GrSurfaceOrigin'>GrSurfaceOrigin</a> origin, <a href='SkImageInfo_Reference#SkColorType'>SkColorType</a> <a href='#SkImage_colorType'>colorType</a>,
<a href='SkImageInfo_Reference#SkAlphaType'>SkAlphaType</a> <a href='#SkImage_alphaType'>alphaType</a>, <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkColorSpace'>SkColorSpace</a>&gt; <a href='#SkImage_colorSpace'>colorSpace</a>,
<a href='#SkImage_TextureReleaseProc'>TextureReleaseProc</a> textureReleaseProc,
<a href='#SkImage_ReleaseContext'>ReleaseContext</a> releaseContext)
</pre>
Creates <a href='#Image'>Image</a> from <a href='undocumented#GPU_Texture'>GPU Texture</a> associated with <a href='#SkImage_MakeFromTexture_2_context'>context</a>. <a href='undocumented#GPU_Texture'>GPU Texture</a> must stay
valid and unchanged until <a href='#SkImage_MakeFromTexture_2_textureReleaseProc'>textureReleaseProc</a> is called. <a href='#SkImage_MakeFromTexture_2_textureReleaseProc'>textureReleaseProc</a> is
passed <a href='#SkImage_MakeFromTexture_2_releaseContext'>releaseContext</a> when <a href='#Image'>Image</a> is deleted or no longer refers to texture.
<a href='#Image'>Image</a> is returned if format of <a href='#SkImage_MakeFromTexture_2_backendTexture'>backendTexture</a> is recognized and supported.
Recognized formats vary by GPU back-end.
### Parameters
<table> <tr> <td><a name='SkImage_MakeFromTexture_2_context'><code><strong>context</strong></code></a></td>
<td><a href='undocumented#GPU_Context'>GPU Context</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromTexture_2_backendTexture'><code><strong>backendTexture</strong></code></a></td>
<td>texture residing on GPU</td>
</tr>
<tr> <td><a name='SkImage_MakeFromTexture_2_origin'><code><strong>origin</strong></code></a></td>
<td>one of: <a href='undocumented#kBottomLeft_GrSurfaceOrigin'>kBottomLeft GrSurfaceOrigin</a>, <a href='undocumented#kTopLeft_GrSurfaceOrigin'>kTopLeft GrSurfaceOrigin</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromTexture_2_colorType'><code><strong>colorType</strong></code></a></td>
<td>one of: <a href='SkImageInfo_Reference#kUnknown_SkColorType'>kUnknown_SkColorType</a>, <a href='SkImageInfo_Reference#kAlpha_8_SkColorType'>kAlpha_8_SkColorType</a>, <a href='SkImageInfo_Reference#kRGB_565_SkColorType'>kRGB_565_SkColorType</a>,
<a href='SkImageInfo_Reference#kARGB_4444_SkColorType'>kARGB_4444_SkColorType</a>, <a href='SkImageInfo_Reference#kRGBA_8888_SkColorType'>kRGBA_8888_SkColorType</a>, <a href='SkImageInfo_Reference#kRGB_888x_SkColorType'>kRGB_888x_SkColorType</a>,
<a href='SkImageInfo_Reference#kBGRA_8888_SkColorType'>kBGRA_8888_SkColorType</a>, <a href='SkImageInfo_Reference#kRGBA_1010102_SkColorType'>kRGBA_1010102_SkColorType</a>, <a href='SkImageInfo_Reference#kRGB_101010x_SkColorType'>kRGB_101010x_SkColorType</a>,
<a href='SkImageInfo_Reference#kGray_8_SkColorType'>kGray_8_SkColorType</a>, <a href='SkImageInfo_Reference#kRGBA_F16_SkColorType'>kRGBA_F16_SkColorType</a> </td>
</tr>
<tr> <td><a name='SkImage_MakeFromTexture_2_alphaType'><code><strong>alphaType</strong></code></a></td>
<td>one of: <a href='SkImageInfo_Reference#kUnknown_SkAlphaType'>kUnknown_SkAlphaType</a>, <a href='SkImageInfo_Reference#kOpaque_SkAlphaType'>kOpaque_SkAlphaType</a>, <a href='SkImageInfo_Reference#kPremul_SkAlphaType'>kPremul_SkAlphaType</a>,
<a href='SkImageInfo_Reference#kUnpremul_SkAlphaType'>kUnpremul_SkAlphaType</a> </td>
</tr>
<tr> <td><a name='SkImage_MakeFromTexture_2_colorSpace'><code><strong>colorSpace</strong></code></a></td>
<td>range of colors; may be nullptr</td>
</tr>
<tr> <td><a name='SkImage_MakeFromTexture_2_textureReleaseProc'><code><strong>textureReleaseProc</strong></code></a></td>
<td>function called when texture can be released</td>
</tr>
<tr> <td><a name='SkImage_MakeFromTexture_2_releaseContext'><code><strong>releaseContext</strong></code></a></td>
<td>state passed to <a href='#SkImage_MakeFromTexture_2_textureReleaseProc'>textureReleaseProc</a></td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="c7be9423f7c2ef819523ba4d607d17b8" gpu="true"></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeFromAdoptedTexture'>MakeFromAdoptedTexture</a> <a href='SkSurface_Reference#SkSurface_MakeFromBackendTexture'>SkSurface::MakeFromBackendTexture</a>
---
<a name='SkImage_MakeCrossContextFromEncoded'></a>
## MakeCrossContextFromEncoded
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeCrossContextFromEncoded'>MakeCrossContextFromEncoded</a>(<a href='undocumented#GrContext'>GrContext</a>* context, <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkData'>SkData</a>&gt; data,
bool buildMips, <a href='undocumented#SkColorSpace'>SkColorSpace</a>* dstColorSpace,
bool limitToMaxTextureSize = false)
</pre>
Creates <a href='#Image'>Image</a> from encoded <a href='#SkImage_MakeCrossContextFromEncoded_data'>data</a>. <a href='#Image'>Image</a> is uploaded to GPU back-end using <a href='#SkImage_MakeCrossContextFromEncoded_context'>context</a>.
Created <a href='#Image'>Image</a> is available to other GPU contexts, and is available across thread
boundaries. All contexts must be in the same <a href='undocumented#GPU_Share_Group'>GPU Share Group</a>, or otherwise
share resources.
When <a href='#Image'>Image</a> is no longer referenced, <a href='#SkImage_MakeCrossContextFromEncoded_context'>context</a> releases texture memory
asynchronously.
<a href='undocumented#Texture'>Texture</a> decoded from <a href='#SkImage_MakeCrossContextFromEncoded_data'>data</a> is uploaded to match <a href='SkSurface_Reference#Surface'>Surface</a> created with
<a href='#SkImage_MakeCrossContextFromEncoded_dstColorSpace'>dstColorSpace</a>. <a href='undocumented#Color_Space'>Color Space</a> of <a href='#Image'>Image</a> is determined by encoded <a href='#SkImage_MakeCrossContextFromEncoded_data'>data</a>.
<a href='#Image'>Image</a> is returned if format of <a href='#SkImage_MakeCrossContextFromEncoded_data'>data</a> is recognized and supported, and if <a href='#SkImage_MakeCrossContextFromEncoded_context'>context</a>
supports moving resources. Recognized formats vary by platform and GPU back-end.
<a href='#Image'>Image</a> is returned using <a href='#SkImage_MakeFromEncoded'>MakeFromEncoded</a> if <a href='#SkImage_MakeCrossContextFromEncoded_context'>context</a> is nullptr or does not support
moving resources between contexts.
### Parameters
<table> <tr> <td><a name='SkImage_MakeCrossContextFromEncoded_context'><code><strong>context</strong></code></a></td>
<td><a href='undocumented#GPU_Context'>GPU Context</a></td>
</tr>
<tr> <td><a name='SkImage_MakeCrossContextFromEncoded_data'><code><strong>data</strong></code></a></td>
<td><a href='#Image'>Image</a> to decode</td>
</tr>
<tr> <td><a name='SkImage_MakeCrossContextFromEncoded_buildMips'><code><strong>buildMips</strong></code></a></td>
<td>create <a href='#Image'>Image</a> as <a href='undocumented#Mip_Map'>Mip Map</a> if true</td>
</tr>
<tr> <td><a name='SkImage_MakeCrossContextFromEncoded_dstColorSpace'><code><strong>dstColorSpace</strong></code></a></td>
<td>range of colors of matching <a href='SkSurface_Reference#Surface'>Surface</a> on GPU</td>
</tr>
<tr> <td><a name='SkImage_MakeCrossContextFromEncoded_limitToMaxTextureSize'><code><strong>limitToMaxTextureSize</strong></code></a></td>
<td>downscale image to GPU maximum texture size, if necessary</td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="069c7b116479e3ca46f953f07dcbdd36"></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeCrossContextFromPixmap'>MakeCrossContextFromPixmap</a>
---
<a name='SkImage_MakeCrossContextFromPixmap'></a>
## MakeCrossContextFromPixmap
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeCrossContextFromPixmap'>MakeCrossContextFromPixmap</a>(<a href='undocumented#GrContext'>GrContext</a>* context, const <a href='SkPixmap_Reference#SkPixmap'>SkPixmap</a>& pixmap,
bool buildMips, <a href='undocumented#SkColorSpace'>SkColorSpace</a>* dstColorSpace,
bool limitToMaxTextureSize = false)
</pre>
Creates <a href='#Image'>Image</a> from <a href='#SkImage_MakeCrossContextFromPixmap_pixmap'>pixmap</a>. <a href='#Image'>Image</a> is uploaded to GPU back-end using <a href='#SkImage_MakeCrossContextFromPixmap_context'>context</a>.
Created <a href='#Image'>Image</a> is available to other GPU contexts, and is available across thread
boundaries. All contexts must be in the same <a href='undocumented#GPU_Share_Group'>GPU Share Group</a>, or otherwise
share resources.
When <a href='#Image'>Image</a> is no longer referenced, <a href='#SkImage_MakeCrossContextFromPixmap_context'>context</a> releases texture memory
asynchronously.
<a href='undocumented#Texture'>Texture</a> created from <a href='#SkImage_MakeCrossContextFromPixmap_pixmap'>pixmap</a> is uploaded to match <a href='SkSurface_Reference#Surface'>Surface</a> created with
<a href='#SkImage_MakeCrossContextFromPixmap_dstColorSpace'>dstColorSpace</a>. <a href='undocumented#Color_Space'>Color Space</a> of <a href='#Image'>Image</a> is determined by <a href='#SkImage_MakeCrossContextFromPixmap_pixmap'>pixmap</a>.<a href='#SkImage_colorSpace'>colorSpace</a>.
<a href='#Image'>Image</a> is returned referring to GPU back-end if <a href='#SkImage_MakeCrossContextFromPixmap_context'>context</a> is not nullptr,
format of data is recognized and supported, and if <a href='#SkImage_MakeCrossContextFromPixmap_context'>context</a> supports moving
resources between contexts. Otherwise, <a href='#SkImage_MakeCrossContextFromPixmap_pixmap'>pixmap</a> pixel data is copied and <a href='#Image'>Image</a>
as returned in raster format if possible; nullptr may be returned.
Recognized GPU formats vary by platform and GPU back-end.
### Parameters
<table> <tr> <td><a name='SkImage_MakeCrossContextFromPixmap_context'><code><strong>context</strong></code></a></td>
<td><a href='undocumented#GPU_Context'>GPU Context</a></td>
</tr>
<tr> <td><a name='SkImage_MakeCrossContextFromPixmap_pixmap'><code><strong>pixmap</strong></code></a></td>
<td><a href='SkImageInfo_Reference#Image_Info'>Image Info</a>, pixel address, and row bytes</td>
</tr>
<tr> <td><a name='SkImage_MakeCrossContextFromPixmap_buildMips'><code><strong>buildMips</strong></code></a></td>
<td>create <a href='#Image'>Image</a> as <a href='undocumented#Mip_Map'>Mip Map</a> if true</td>
</tr>
<tr> <td><a name='SkImage_MakeCrossContextFromPixmap_dstColorSpace'><code><strong>dstColorSpace</strong></code></a></td>
<td>range of colors of matching <a href='SkSurface_Reference#Surface'>Surface</a> on GPU</td>
</tr>
<tr> <td><a name='SkImage_MakeCrossContextFromPixmap_limitToMaxTextureSize'><code><strong>limitToMaxTextureSize</strong></code></a></td>
<td>downscale image to GPU maximum texture size, if necessary</td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="45bca8747b8f49b5be34b520897ef048"></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeCrossContextFromEncoded'>MakeCrossContextFromEncoded</a>
---
<a name='SkImage_MakeFromAdoptedTexture'></a>
## MakeFromAdoptedTexture
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeFromAdoptedTexture'>MakeFromAdoptedTexture</a>(<a href='undocumented#GrContext'>GrContext</a>* context,
const <a href='undocumented#GrBackendTexture'>GrBackendTexture</a>& backendTexture,
<a href='undocumented#GrSurfaceOrigin'>GrSurfaceOrigin</a> surfaceOrigin, <a href='SkImageInfo_Reference#SkColorType'>SkColorType</a> <a href='#SkImage_colorType'>colorType</a>,
<a href='SkImageInfo_Reference#SkAlphaType'>SkAlphaType</a> <a href='#SkImage_alphaType'>alphaType</a> = <a href='SkImageInfo_Reference#kPremul_SkAlphaType'>kPremul_SkAlphaType</a>,
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkColorSpace'>SkColorSpace</a>&gt; <a href='#SkImage_colorSpace'>colorSpace</a> = nullptr)
</pre>
Creates <a href='#Image'>Image</a> from <a href='#SkImage_MakeFromAdoptedTexture_backendTexture'>backendTexture</a> associated with <a href='#SkImage_MakeFromAdoptedTexture_context'>context</a>. <a href='#SkImage_MakeFromAdoptedTexture_backendTexture'>backendTexture</a> and
returned <a href='#Image'>Image</a> are managed internally, and are released when no longer needed.
<a href='#Image'>Image</a> is returned if format of <a href='#SkImage_MakeFromAdoptedTexture_backendTexture'>backendTexture</a> is recognized and supported.
Recognized formats vary by GPU back-end.
### Parameters
<table> <tr> <td><a name='SkImage_MakeFromAdoptedTexture_context'><code><strong>context</strong></code></a></td>
<td><a href='undocumented#GPU_Context'>GPU Context</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromAdoptedTexture_backendTexture'><code><strong>backendTexture</strong></code></a></td>
<td>texture residing on GPU</td>
</tr>
<tr> <td><a name='SkImage_MakeFromAdoptedTexture_surfaceOrigin'><code><strong>surfaceOrigin</strong></code></a></td>
<td>one of: <a href='undocumented#kBottomLeft_GrSurfaceOrigin'>kBottomLeft GrSurfaceOrigin</a>, <a href='undocumented#kTopLeft_GrSurfaceOrigin'>kTopLeft GrSurfaceOrigin</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromAdoptedTexture_colorType'><code><strong>colorType</strong></code></a></td>
<td>one of: <a href='SkImageInfo_Reference#kUnknown_SkColorType'>kUnknown_SkColorType</a>, <a href='SkImageInfo_Reference#kAlpha_8_SkColorType'>kAlpha_8_SkColorType</a>, <a href='SkImageInfo_Reference#kRGB_565_SkColorType'>kRGB_565_SkColorType</a>,
<a href='SkImageInfo_Reference#kARGB_4444_SkColorType'>kARGB_4444_SkColorType</a>, <a href='SkImageInfo_Reference#kRGBA_8888_SkColorType'>kRGBA_8888_SkColorType</a>, <a href='SkImageInfo_Reference#kRGB_888x_SkColorType'>kRGB_888x_SkColorType</a>,
<a href='SkImageInfo_Reference#kBGRA_8888_SkColorType'>kBGRA_8888_SkColorType</a>, <a href='SkImageInfo_Reference#kRGBA_1010102_SkColorType'>kRGBA_1010102_SkColorType</a>, <a href='SkImageInfo_Reference#kRGB_101010x_SkColorType'>kRGB_101010x_SkColorType</a>,
<a href='SkImageInfo_Reference#kGray_8_SkColorType'>kGray_8_SkColorType</a>, <a href='SkImageInfo_Reference#kRGBA_F16_SkColorType'>kRGBA_F16_SkColorType</a> </td>
</tr>
<tr> <td><a name='SkImage_MakeFromAdoptedTexture_alphaType'><code><strong>alphaType</strong></code></a></td>
<td>one of: <a href='SkImageInfo_Reference#kUnknown_SkAlphaType'>kUnknown_SkAlphaType</a>, <a href='SkImageInfo_Reference#kOpaque_SkAlphaType'>kOpaque_SkAlphaType</a>, <a href='SkImageInfo_Reference#kPremul_SkAlphaType'>kPremul_SkAlphaType</a>,
<a href='SkImageInfo_Reference#kUnpremul_SkAlphaType'>kUnpremul_SkAlphaType</a> </td>
</tr>
<tr> <td><a name='SkImage_MakeFromAdoptedTexture_colorSpace'><code><strong>colorSpace</strong></code></a></td>
<td>range of colors; may be nullptr</td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="67b6609471a3f1ed0f4b1657004cdecb" gpu="true"></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeFromTexture'>MakeFromTexture</a><sup><a href='#SkImage_MakeFromTexture_2'>[2]</a></sup> <a href='#SkImage_MakeFromYUVTexturesCopy'>MakeFromYUVTexturesCopy</a>
---
<a name='SkImage_MakeFromYUVTexturesCopy'></a>
## MakeFromYUVTexturesCopy
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeFromYUVTexturesCopy'>MakeFromYUVTexturesCopy</a>(<a href='undocumented#GrContext'>GrContext</a>* context, <a href='SkImageInfo_Reference#SkYUVColorSpace'>SkYUVColorSpace</a> yuvColorSpace,
const <a href='undocumented#GrBackendTexture'>GrBackendTexture</a> yuvTextures[3],
<a href='undocumented#GrSurfaceOrigin'>GrSurfaceOrigin</a> surfaceOrigin,
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkColorSpace'>SkColorSpace</a>&gt; <a href='#SkImage_colorSpace'>colorSpace</a> = nullptr)
</pre>
Creates <a href='#Image'>Image</a> from copy of <a href='#SkImage_MakeFromYUVTexturesCopy_yuvTextures'>yuvTextures</a>, an array of textures on GPU.
<a href='#SkImage_MakeFromYUVTexturesCopy_yuvTextures'>yuvTextures</a> contain pixels for YUV planes of <a href='#Image'>Image</a>. Returned <a href='#Image'>Image</a> has the dimensions
<a href='#SkImage_MakeFromYUVTexturesCopy_yuvTextures'>yuvTextures</a>[0]. <a href='#SkImage_MakeFromYUVTexturesCopy_yuvColorSpace'>yuvColorSpace</a> describes how YUV colors convert to RGB colors.
### Parameters
<table> <tr> <td><a name='SkImage_MakeFromYUVTexturesCopy_context'><code><strong>context</strong></code></a></td>
<td><a href='undocumented#GPU_Context'>GPU Context</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromYUVTexturesCopy_yuvColorSpace'><code><strong>yuvColorSpace</strong></code></a></td>
<td>one of: <a href='SkImageInfo_Reference#kJPEG_SkYUVColorSpace'>kJPEG_SkYUVColorSpace</a>, <a href='SkImageInfo_Reference#kRec601_SkYUVColorSpace'>kRec601_SkYUVColorSpace</a>,
<a href='SkImageInfo_Reference#kRec709_SkYUVColorSpace'>kRec709_SkYUVColorSpace</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromYUVTexturesCopy_yuvTextures'><code><strong>yuvTextures</strong></code></a></td>
<td>array of YUV textures on GPU</td>
</tr>
<tr> <td><a name='SkImage_MakeFromYUVTexturesCopy_surfaceOrigin'><code><strong>surfaceOrigin</strong></code></a></td>
<td>one of: <a href='undocumented#kBottomLeft_GrSurfaceOrigin'>kBottomLeft GrSurfaceOrigin</a>, <a href='undocumented#kTopLeft_GrSurfaceOrigin'>kTopLeft GrSurfaceOrigin</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromYUVTexturesCopy_colorSpace'><code><strong>colorSpace</strong></code></a></td>
<td>range of colors; may be nullptr</td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### See Also
<a href='#SkImage_MakeFromNV12TexturesCopy'>MakeFromNV12TexturesCopy</a>
---
<a name='SkImage_MakeFromNV12TexturesCopy'></a>
## MakeFromNV12TexturesCopy
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeFromNV12TexturesCopy'>MakeFromNV12TexturesCopy</a>(<a href='undocumented#GrContext'>GrContext</a>* context, <a href='SkImageInfo_Reference#SkYUVColorSpace'>SkYUVColorSpace</a> yuvColorSpace,
const <a href='undocumented#GrBackendTexture'>GrBackendTexture</a> nv12Textures[2],
<a href='undocumented#GrSurfaceOrigin'>GrSurfaceOrigin</a> surfaceOrigin,
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkColorSpace'>SkColorSpace</a>&gt; <a href='#SkImage_colorSpace'>colorSpace</a> = nullptr)
</pre>
Creates <a href='#Image'>Image</a> from copy of <a href='#SkImage_MakeFromNV12TexturesCopy_nv12Textures'>nv12Textures</a>, an array of textures on GPU.
<a href='#SkImage_MakeFromNV12TexturesCopy_nv12Textures'>nv12Textures</a>[0] contains pixels for <a href='undocumented#YUV_Component_Y'>YUV Component Y</a> plane.
<a href='#SkImage_MakeFromNV12TexturesCopy_nv12Textures'>nv12Textures</a>[1] contains pixels for <a href='undocumented#YUV_Component_U'>YUV Component U</a> plane,
followed by pixels for <a href='undocumented#YUV_Component_V'>YUV Component V</a> plane.
Returned <a href='#Image'>Image</a> has the dimensions <a href='#SkImage_MakeFromNV12TexturesCopy_nv12Textures'>nv12Textures</a>[2].
<a href='#SkImage_MakeFromNV12TexturesCopy_yuvColorSpace'>yuvColorSpace</a> describes how YUV colors convert to RGB colors.
### Parameters
<table> <tr> <td><a name='SkImage_MakeFromNV12TexturesCopy_context'><code><strong>context</strong></code></a></td>
<td><a href='undocumented#GPU_Context'>GPU Context</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromNV12TexturesCopy_yuvColorSpace'><code><strong>yuvColorSpace</strong></code></a></td>
<td>one of: <a href='SkImageInfo_Reference#kJPEG_SkYUVColorSpace'>kJPEG_SkYUVColorSpace</a>, <a href='SkImageInfo_Reference#kRec601_SkYUVColorSpace'>kRec601_SkYUVColorSpace</a>,
<a href='SkImageInfo_Reference#kRec709_SkYUVColorSpace'>kRec709_SkYUVColorSpace</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromNV12TexturesCopy_nv12Textures'><code><strong>nv12Textures</strong></code></a></td>
<td>array of YUV textures on GPU</td>
</tr>
<tr> <td><a name='SkImage_MakeFromNV12TexturesCopy_surfaceOrigin'><code><strong>surfaceOrigin</strong></code></a></td>
<td>one of: <a href='undocumented#kBottomLeft_GrSurfaceOrigin'>kBottomLeft GrSurfaceOrigin</a>, <a href='undocumented#kTopLeft_GrSurfaceOrigin'>kTopLeft GrSurfaceOrigin</a></td>
</tr>
<tr> <td><a name='SkImage_MakeFromNV12TexturesCopy_colorSpace'><code><strong>colorSpace</strong></code></a></td>
<td>range of colors; may be nullptr</td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### See Also
<a href='#SkImage_MakeFromYUVTexturesCopy'>MakeFromYUVTexturesCopy</a>
---
## <a name='SkImage_BitDepth'>Enum SkImage::BitDepth</a>
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
enum class <a href='#SkImage_BitDepth'>BitDepth</a> {
<a href='#SkImage_BitDepth_kU8'>kU8</a>,
<a href='#SkImage_BitDepth_kF16'>kF16</a>,
};
</pre>
### Constants
<table style='border-collapse: collapse; width: 62.5em'>
<tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Const</th>
<th style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>Value</th>
<th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkImage_BitDepth_kU8'><code>SkImage::BitDepth::kU8</code></a></td>
<td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0</td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>
Use 8 bits per ARGB component using unsigned integer format.
</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkImage_BitDepth_kF16'><code>SkImage::BitDepth::kF16</code></a></td>
<td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>1</td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>
Use 16 bits per ARGB component using half-precision floating point format.
</td>
</tr>
</table>
### See Also
<a href='#SkImage_MakeFromPicture'>MakeFromPicture</a>
<a name='SkImage_MakeFromPicture'></a>
## MakeFromPicture
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeFromPicture'>MakeFromPicture</a>(<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='SkPicture_Reference#SkPicture'>SkPicture</a>&gt; picture, const <a href='undocumented#SkISize'>SkISize</a>& dimensions,
const <a href='SkMatrix_Reference#SkMatrix'>SkMatrix</a>* matrix, const <a href='SkPaint_Reference#SkPaint'>SkPaint</a>* paint,
<a href='#SkImage_BitDepth'>BitDepth</a> bitDepth, <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkColorSpace'>SkColorSpace</a>&gt; <a href='#SkImage_colorSpace'>colorSpace</a>)
</pre>
Creates <a href='#Image'>Image</a> from <a href='#SkImage_MakeFromPicture_picture'>picture</a>. Returned <a href='#Image'>Image</a> width and height are set by dimensions.
<a href='#Image'>Image</a> draws <a href='#SkImage_MakeFromPicture_picture'>picture</a> with <a href='#SkImage_MakeFromPicture_matrix'>matrix</a> and <a href='#SkImage_MakeFromPicture_paint'>paint</a>, set to <a href='#SkImage_MakeFromPicture_bitDepth'>bitDepth</a> and <a href='#SkImage_colorSpace'>colorSpace</a>.
If <a href='#SkImage_MakeFromPicture_matrix'>matrix</a> is nullptr, draws with identity <a href='SkMatrix_Reference#Matrix'>Matrix</a>. If <a href='#SkImage_MakeFromPicture_paint'>paint</a> is nullptr, draws
with default <a href='SkPaint_Reference#Paint'>Paint</a>. <a href='#SkImage_colorSpace'>colorSpace</a> may be nullptr.
### Parameters
<table> <tr> <td><a name='SkImage_MakeFromPicture_picture'><code><strong>picture</strong></code></a></td>
<td>stream of drawing commands</td>
</tr>
<tr> <td><a name='SkImage_MakeFromPicture_dimensions'><code><strong>dimensions</strong></code></a></td>
<td>width and height</td>
</tr>
<tr> <td><a name='SkImage_MakeFromPicture_matrix'><code><strong>matrix</strong></code></a></td>
<td><a href='SkMatrix_Reference#Matrix'>Matrix</a> to rotate, scale, translate, and so on; may be nullptr</td>
</tr>
<tr> <td><a name='SkImage_MakeFromPicture_paint'><code><strong>paint</strong></code></a></td>
<td><a href='SkPaint_Reference#Paint'>Paint</a> to apply transparency, filtering, and so on; may be nullptr</td>
</tr>
<tr> <td><a name='SkImage_MakeFromPicture_bitDepth'><code><strong>bitDepth</strong></code></a></td>
<td>8-bit integer or 16-bit float: per component</td>
</tr>
<tr> <td><a name='SkImage_MakeFromPicture_colorSpace'><code><strong>colorSpace</strong></code></a></td>
<td>range of colors; may be nullptr</td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="4aa2879b9e44dfd6648995326d2c4dcf"></fiddle-embed></div>
### See Also
<a href='SkCanvas_Reference#SkCanvas_drawPicture'>SkCanvas::drawPicture</a><sup><a href='SkCanvas_Reference#SkCanvas_drawPicture_2'>[2]</a></sup><sup><a href='SkCanvas_Reference#SkCanvas_drawPicture_3'>[3]</a></sup><sup><a href='SkCanvas_Reference#SkCanvas_drawPicture_4'>[4]</a></sup>
---
<a name='SkImage_MakeFromAHardwareBuffer'></a>
## MakeFromAHardwareBuffer
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_MakeFromAHardwareBuffer'>MakeFromAHardwareBuffer</a>(AHardwareBuffer* hardwareBuffer,
<a href='SkImageInfo_Reference#SkAlphaType'>SkAlphaType</a> <a href='#SkImage_alphaType'>alphaType</a> = <a href='SkImageInfo_Reference#kPremul_SkAlphaType'>kPremul_SkAlphaType</a>,
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkColorSpace'>SkColorSpace</a>&gt; <a href='#SkImage_colorSpace'>colorSpace</a> = nullptr)
</pre>
Creates <a href='#Image'>Image</a> from Android hardware buffer.
Returned <a href='#Image'>Image</a> takes a reference on the buffer.
Only available on Android, when __ANDROID_API__ is defined to be 26 or greater.
### Parameters
<table> <tr> <td><a name='SkImage_MakeFromAHardwareBuffer_hardwareBuffer'><code><strong>hardwareBuffer</strong></code></a></td>
<td>AHardwareBuffer Android hardware buffer</td>
</tr>
<tr> <td><a name='SkImage_MakeFromAHardwareBuffer_alphaType'><code><strong>alphaType</strong></code></a></td>
<td>one of: <a href='SkImageInfo_Reference#kUnknown_SkAlphaType'>kUnknown_SkAlphaType</a>, <a href='SkImageInfo_Reference#kOpaque_SkAlphaType'>kOpaque_SkAlphaType</a>, <a href='SkImageInfo_Reference#kPremul_SkAlphaType'>kPremul_SkAlphaType</a>,
<a href='SkImageInfo_Reference#kUnpremul_SkAlphaType'>kUnpremul_SkAlphaType</a> </td>
</tr>
<tr> <td><a name='SkImage_MakeFromAHardwareBuffer_colorSpace'><code><strong>colorSpace</strong></code></a></td>
<td>range of colors; may be nullptr</td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### See Also
<a href='#SkImage_MakeFromRaster'>MakeFromRaster</a>
---
## <a name='Property'>Property</a>
<table style='border-collapse: collapse; width: 62.5em'>
<tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th>
<th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_alphaType'>alphaType</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_bounds'>bounds</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#SkImage_width'>width</a> and <a href='#SkImage_height'>height</a> as Rectangle</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_colorSpace'>colorSpace</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='undocumented#Color_Space'>Color Space</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_colorType'>colorType</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='SkImageInfo_Reference#Color_Type'>Color Type</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_dimensions'>dimensions</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#SkImage_width'>width</a> and <a href='#SkImage_height'>height</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_getBackendTexture'>getBackendTexture</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns GPU reference to <a href='#Image'>Image</a> as texture</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_height'>height</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns pixel row count</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_isAlphaOnly'>isAlphaOnly</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns if pixels represent a transparency mask</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_isLazyGenerated'>isLazyGenerated</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns if <a href='#Image'>Image</a> is created as needed</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_isOpaque'>isOpaque</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns if <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a> is <a href='SkImageInfo_Reference#kOpaque_SkAlphaType'>kOpaque_SkAlphaType</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_isTextureBacked'>isTextureBacked</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns if <a href='#Image'>Image</a> was created from <a href='undocumented#GPU_Texture'>GPU Texture</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_isValid'>isValid</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns if <a href='#Image'>Image</a> can draw to <a href='undocumented#Raster_Surface'>Raster Surface</a> or <a href='undocumented#GPU_Context'>GPU Context</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_refColorSpace'>refColorSpace</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='SkImageInfo_Reference#Image_Info'>Image Info</a> <a href='undocumented#Color_Space'>Color Space</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_uniqueID'>uniqueID</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns identifier for <a href='#Image'>Image</a></td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_width'>width</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns pixel column count</td>
</tr>
</table>
<a name='SkImage_width'></a>
## width
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
int <a href='#SkImage_width'>width</a>() const
</pre>
Returns pixel count in each row.
### Return Value
pixel width in <a href='#Image'>Image</a>
### Example
<div><fiddle-embed name="39a6d0bbeac6d957c2338e0bff865cf8"></fiddle-embed></div>
### See Also
<a href='#SkImage_dimensions'>dimensions</a> <a href='#SkImage_height'>height</a>
---
<a name='SkImage_height'></a>
## height
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
int <a href='#SkImage_height'>height</a>() const
</pre>
Returns pixel row count.
### Return Value
pixel height in <a href='#Image'>Image</a>
### Example
<div><fiddle-embed name="6e563cb8351d34bd8af555a51bcd7a96"></fiddle-embed></div>
### See Also
<a href='#SkImage_dimensions'>dimensions</a> <a href='#SkImage_width'>width</a>
---
<a name='SkImage_dimensions'></a>
## dimensions
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#SkISize'>SkISize</a> <a href='#SkImage_dimensions'>dimensions</a>() const
</pre>
Returns <a href='undocumented#ISize'>ISize</a> { <a href='#SkImage_width'>width</a>, <a href='#SkImage_height'>height</a> }.
### Return Value
integral size of <a href='#SkImage_width'>width</a> and <a href='#SkImage_height'>height</a>
### Example
<div><fiddle-embed name="96b4bc43b3667df9ba9e2dafb770d33c">
#### Example Output
~~~~
dimensionsAsBounds == bounds
~~~~
</fiddle-embed></div>
### See Also
<a href='#SkImage_height'>height</a> <a href='#SkImage_width'>width</a> <a href='#SkImage_bounds'>bounds</a>
---
<a name='SkImage_bounds'></a>
## bounds
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='SkIRect_Reference#SkIRect'>SkIRect</a> <a href='#SkImage_bounds'>bounds</a>() const
</pre>
Returns <a href='SkIRect_Reference#IRect'>IRect</a> { 0, 0, <a href='#SkImage_width'>width</a>, <a href='#SkImage_height'>height</a> }.
### Return Value
integral rectangle from origin to <a href='#SkImage_width'>width</a> and <a href='#SkImage_height'>height</a>
### Example
<div><fiddle-embed name="c204b38b3fc08914b0a634aa4eaec894"></fiddle-embed></div>
### See Also
<a href='#SkImage_dimensions'>dimensions</a>
---
<a name='SkImage_uniqueID'></a>
## uniqueID
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
uint32_t <a href='#SkImage_uniqueID'>uniqueID</a>() const
</pre>
Returns value unique to image. <a href='#Image'>Image</a> contents cannot change after <a href='#Image'>Image</a> is
created. Any operation to create a new <a href='#Image'>Image</a> will receive generate a new
unique number.
### Return Value
unique identifier
### Example
<div><fiddle-embed name="d70194c9c51e700335f95de91846d023"></fiddle-embed></div>
### See Also
<a href='#SkImage_isLazyGenerated'>isLazyGenerated</a>
---
<a name='SkImage_alphaType'></a>
## alphaType
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='SkImageInfo_Reference#SkAlphaType'>SkAlphaType</a> <a href='#SkImage_alphaType'>alphaType</a>() const
</pre>
Returns <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a>, one of: <a href='SkImageInfo_Reference#kUnknown_SkAlphaType'>kUnknown_SkAlphaType</a>, <a href='SkImageInfo_Reference#kOpaque_SkAlphaType'>kOpaque_SkAlphaType</a>, <a href='SkImageInfo_Reference#kPremul_SkAlphaType'>kPremul_SkAlphaType</a>,
<a href='SkImageInfo_Reference#kUnpremul_SkAlphaType'>kUnpremul_SkAlphaType</a>.
<a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a> returned was a parameter to an <a href='#Image'>Image</a> constructor,
or was parsed from encoded data.
### Return Value
<a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a> in <a href='#Image'>Image</a>
### Example
<div><fiddle-embed name="1b9f1f05026ceb14ccb6926a13cdaa83"></fiddle-embed></div>
### See Also
<a href='SkImageInfo_Reference#SkImageInfo_alphaType'>SkImageInfo::alphaType</a>
---
<a name='SkImage_colorType'></a>
## colorType
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='SkImageInfo_Reference#SkColorType'>SkColorType</a> <a href='#SkImage_colorType'>colorType</a>() const
</pre>
Returns <a href='SkImageInfo_Reference#Color_Type'>Color Type</a> if known; otherwise, returns <a href='SkImageInfo_Reference#kUnknown_SkColorType'>kUnknown_SkColorType</a>.
### Return Value
<a href='SkImageInfo_Reference#Color_Type'>Color Type</a> of <a href='#Image'>Image</a>
### Example
<div><fiddle-embed name="50396fad4a128f58e400ca00fe09711f"></fiddle-embed></div>
### See Also
<a href='SkImageInfo_Reference#SkImageInfo_colorType'>SkImageInfo::colorType</a>
---
<a name='SkImage_colorSpace'></a>
## colorSpace
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#SkColorSpace'>SkColorSpace</a>* <a href='#SkImage_colorSpace'>colorSpace</a>() const
</pre>
Returns <a href='undocumented#Color_Space'>Color Space</a>, the range of colors, associated with <a href='#Image'>Image</a>. The
reference count of <a href='undocumented#Color_Space'>Color Space</a> is unchanged. The returned <a href='undocumented#Color_Space'>Color Space</a> is
immutable.
<a href='undocumented#Color_Space'>Color Space</a> returned was passed to an <a href='#Image'>Image</a> constructor,
or was parsed from encoded data. <a href='undocumented#Color_Space'>Color Space</a> returned may be ignored when <a href='#Image'>Image</a>
is drawn, depending on the capabilities of the <a href='SkSurface_Reference#Surface'>Surface</a> receiving the drawing.
### Return Value
<a href='undocumented#Color_Space'>Color Space</a> in <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="4468d573f42af6f5e234be10a5453bb2"></fiddle-embed></div>
### See Also
<a href='#SkImage_refColorSpace'>refColorSpace</a> <a href='#SkImage_makeColorSpace'>makeColorSpace</a>
---
<a name='SkImage_refColorSpace'></a>
## refColorSpace
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkColorSpace'>SkColorSpace</a>&gt; <a href='#SkImage_refColorSpace'>refColorSpace</a>() const
</pre>
Returns a smart pointer to <a href='undocumented#Color_Space'>Color Space</a>, the range of colors, associated with
<a href='#Image'>Image</a>. The smart pointer tracks the number of objects sharing this
<a href='undocumented#SkColorSpace'>SkColorSpace</a> reference so the memory is released when the owners destruct.
The returned <a href='undocumented#SkColorSpace'>SkColorSpace</a> is immutable.
<a href='undocumented#Color_Space'>Color Space</a> returned was passed to an <a href='#Image'>Image</a> constructor,
or was parsed from encoded data. <a href='undocumented#Color_Space'>Color Space</a> returned may be ignored when <a href='#Image'>Image</a>
is drawn, depending on the capabilities of the <a href='SkSurface_Reference#Surface'>Surface</a> receiving the drawing.
### Return Value
<a href='undocumented#Color_Space'>Color Space</a> in <a href='#Image'>Image</a>, or nullptr, wrapped in a smart pointer
### Example
<div><fiddle-embed name="59b2078ebfbda8736a57c0486ae33332"></fiddle-embed></div>
### See Also
<a href='#SkImage_colorSpace'>colorSpace</a> <a href='#SkImage_makeColorSpace'>makeColorSpace</a>
---
<a name='SkImage_isAlphaOnly'></a>
## isAlphaOnly
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
bool <a href='#SkImage_isAlphaOnly'>isAlphaOnly</a>() const
</pre>
Returns true if <a href='#Image'>Image</a> pixels represent transparency only. If true, each pixel
is packed in 8 bits as defined by <a href='SkImageInfo_Reference#kAlpha_8_SkColorType'>kAlpha_8_SkColorType</a>.
### Return Value
true if pixels represent a transparency mask
### Example
<div><fiddle-embed name="50762c73b8ea91959c5a7b68fbf1062d">
#### Example Output
~~~~
alphaOnly = true
~~~~
</fiddle-embed></div>
### See Also
<a href='#SkImage_alphaType'>alphaType</a> <a href='#SkImage_isOpaque'>isOpaque</a>
---
<a name='SkImage_isOpaque'></a>
## isOpaque
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
bool <a href='#SkImage_isOpaque'>isOpaque</a>() const
</pre>
Returns true if pixels ignore their <a href='SkColor_Reference#Alpha'>Alpha</a> value and are treated as fully opaque.
### Return Value
true if <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a> is <a href='SkImageInfo_Reference#kOpaque_SkAlphaType'>kOpaque_SkAlphaType</a>
### Example
<div><fiddle-embed name="e3340460003b74ee286d625e68589d65">
#### Example Output
~~~~
isOpaque = false
isOpaque = true
~~~~
</fiddle-embed></div>
### See Also
<a href='#SkImage_alphaType'>alphaType</a> <a href='#SkImage_isAlphaOnly'>isAlphaOnly</a>
---
<a name='SkImage_makeShader'></a>
## makeShader
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkShader'>SkShader</a>&gt; <a href='#SkImage_makeShader'>makeShader</a>(<a href='undocumented#SkShader_TileMode'>SkShader::TileMode</a> tileMode1, <a href='undocumented#SkShader_TileMode'>SkShader::TileMode</a> tileMode2,
const <a href='SkMatrix_Reference#SkMatrix'>SkMatrix</a>* localMatrix = nullptr) const
</pre>
Creates <a href='undocumented#Shader'>Shader</a> from <a href='#Image'>Image</a>. <a href='undocumented#Shader'>Shader</a> dimensions are taken from <a href='#Image'>Image</a>. <a href='undocumented#Shader'>Shader</a> uses
<a href='undocumented#SkShader_TileMode'>SkShader::TileMode</a> rules to fill drawn area outside <a href='#Image'>Image</a>. <a href='#SkImage_makeShader_localMatrix'>localMatrix</a> permits
transforming <a href='#Image'>Image</a> before <a href='SkCanvas_Reference#Matrix'>Canvas Matrix</a> is applied.
### Parameters
<table> <tr> <td><a name='SkImage_makeShader_tileMode1'><code><strong>tileMode1</strong></code></a></td>
<td>tiling on x-axis, one of: <a href='undocumented#SkShader_kClamp_TileMode'>SkShader::kClamp TileMode</a>,
<a href='undocumented#SkShader_kRepeat_TileMode'>SkShader::kRepeat TileMode</a>, <a href='undocumented#SkShader_kMirror_TileMode'>SkShader::kMirror TileMode</a></td>
</tr>
<tr> <td><a name='SkImage_makeShader_tileMode2'><code><strong>tileMode2</strong></code></a></td>
<td>tiling on y-axis, one of: <a href='undocumented#SkShader_kClamp_TileMode'>SkShader::kClamp TileMode</a>,
<a href='undocumented#SkShader_kRepeat_TileMode'>SkShader::kRepeat TileMode</a>, <a href='undocumented#SkShader_kMirror_TileMode'>SkShader::kMirror TileMode</a></td>
</tr>
<tr> <td><a name='SkImage_makeShader_localMatrix'><code><strong>localMatrix</strong></code></a></td>
<td><a href='#Image'>Image</a> transformation, or nullptr</td>
</tr>
</table>
### Return Value
<a href='undocumented#Shader'>Shader</a> containing <a href='#Image'>Image</a>
### Example
<div><fiddle-embed name="1c6de6fe72b00b5be970f5f718363449"></fiddle-embed></div>
### See Also
<a href='#SkImage_scalePixels'>scalePixels</a>
---
<a name='SkImage_makeShader_2'></a>
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkShader'>SkShader</a>&gt; <a href='#SkImage_makeShader'>makeShader</a>(const <a href='SkMatrix_Reference#SkMatrix'>SkMatrix</a>* localMatrix = nullptr) const
</pre>
Creates <a href='undocumented#Shader'>Shader</a> from <a href='#Image'>Image</a>. <a href='undocumented#Shader'>Shader</a> dimensions are taken from <a href='#Image'>Image</a>. <a href='undocumented#Shader'>Shader</a> uses
<a href='undocumented#SkShader_kClamp_TileMode'>SkShader::kClamp TileMode</a> to fill drawn area outside <a href='#Image'>Image</a>. <a href='#SkImage_makeShader_2_localMatrix'>localMatrix</a> permits
transforming <a href='#Image'>Image</a> before <a href='SkCanvas_Reference#Matrix'>Canvas Matrix</a> is applied.
### Parameters
<table> <tr> <td><a name='SkImage_makeShader_2_localMatrix'><code><strong>localMatrix</strong></code></a></td>
<td><a href='#Image'>Image</a> transformation, or nullptr</td>
</tr>
</table>
### Return Value
<a href='undocumented#Shader'>Shader</a> containing <a href='#Image'>Image</a>
### Example
<div><fiddle-embed name="10172fca71b9dbdcade772513ffeb27e"></fiddle-embed></div>
### See Also
<a href='#SkImage_scalePixels'>scalePixels</a>
---
## <a name='Pixels'>Pixels</a>
<table style='border-collapse: collapse; width: 62.5em'>
<tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th>
<th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_peekPixels'>peekPixels</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='SkPixmap_Reference#Pixmap'>Pixmap</a> if possible</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_readPixels'>readPixels</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>copies and converts pixels</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_readPixels'>readPixels(const SkImageInfo& dstInfo, void* dstPixels, size t dstRowBytes, int srcX, int srcY, CachingHint cachingHint = kAllow CachingHint)</a> const</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_readPixels_2'>readPixels(const SkPixmap& dst, int srcX, int srcY, CachingHint cachingHint = kAllow CachingHint)</a> const</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_scalePixels'>scalePixels</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>scales and converts one <a href='#Image'>Image</a> to another</td>
</tr>
</table>
<a name='SkImage_peekPixels'></a>
## peekPixels
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
bool <a href='#SkImage_peekPixels'>peekPixels</a>(<a href='SkPixmap_Reference#SkPixmap'>SkPixmap</a>* pixmap) const
</pre>
Copies <a href='#Image'>Image</a> pixel address, row bytes, and <a href='SkImageInfo_Reference#Image_Info'>Image Info</a> to <a href='#SkImage_peekPixels_pixmap'>pixmap</a>, if address
is available, and returns true. If pixel address is not available, return
false and leave <a href='#SkImage_peekPixels_pixmap'>pixmap</a> unchanged.
### Parameters
<table> <tr> <td><a name='SkImage_peekPixels_pixmap'><code><strong>pixmap</strong></code></a></td>
<td>storage for pixel state if pixels are readable; otherwise, ignored</td>
</tr>
</table>
### Return Value
true if <a href='#Image'>Image</a> has direct access to pixels
### Example
<div><fiddle-embed name="900c0eab8dfdecd8301ed5be95887f8e">
#### Example Output
~~~~
------------
--xx----x---
-x--x--x----
-x--x--x----
-x--x-x-----
--xx-xx-xx--
-----x-x--x-
----x--x--x-
----x--x--x-
---x----xx--
------------
~~~~
</fiddle-embed></div>
### See Also
<a href='#SkImage_readPixels'>readPixels</a><sup><a href='#SkImage_readPixels_2'>[2]</a></sup>
---
<a name='SkImage_getTexture'></a>
## getTexture
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
GrTexture* <a href='#SkImage_getTexture'>getTexture</a>() const
</pre>
Deprecated.
---
<a name='SkImage_isTextureBacked'></a>
## isTextureBacked
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
bool <a href='#SkImage_isTextureBacked'>isTextureBacked</a>() const
</pre>
Returns true the contents of <a href='#Image'>Image</a> was created on or uploaded to GPU memory,
and is available as a <a href='undocumented#GPU_Texture'>GPU Texture</a>.
### Return Value
true if <a href='#Image'>Image</a> is a <a href='undocumented#GPU_Texture'>GPU Texture</a>
### Example
<div><fiddle-embed name="27a0ab44659201f1aa2ac7fea73368c2" gpu="true"></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeFromTexture'>MakeFromTexture</a><sup><a href='#SkImage_MakeFromTexture_2'>[2]</a></sup> <a href='#SkImage_isValid'>isValid</a>
---
<a name='SkImage_isValid'></a>
## isValid
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
bool <a href='#SkImage_isValid'>isValid</a>(<a href='undocumented#GrContext'>GrContext</a>* context) const
</pre>
Returns true if <a href='#Image'>Image</a> can be drawn on either <a href='undocumented#Raster_Surface'>Raster Surface</a> or <a href='undocumented#GPU_Surface'>GPU Surface</a>.
If <a href='#SkImage_isValid_context'>context</a> is nullptr, tests if <a href='#Image'>Image</a> draws on <a href='undocumented#Raster_Surface'>Raster Surface</a>;
otherwise, tests if <a href='#Image'>Image</a> draws on <a href='undocumented#GPU_Surface'>GPU Surface</a> associated with <a href='#SkImage_isValid_context'>context</a>.
<a href='#Image'>Image</a> backed by <a href='undocumented#GPU_Texture'>GPU Texture</a> may become invalid if associated <a href='undocumented#GrContext'>GrContext</a> is
invalid. <a href='#Lazy_Image'>Lazy Image</a> may be invalid and may not draw to <a href='undocumented#Raster_Surface'>Raster Surface</a> or
<a href='undocumented#GPU_Surface'>GPU Surface</a> or both.
### Parameters
<table> <tr> <td><a name='SkImage_isValid_context'><code><strong>context</strong></code></a></td>
<td><a href='undocumented#GPU_Context'>GPU Context</a></td>
</tr>
</table>
### Return Value
true if <a href='#Image'>Image</a> can be drawn
### Example
<div><fiddle-embed name="8f7281446008cf4a9910fe73f44fa8d6" gpu="true"></fiddle-embed></div>
### See Also
<a href='#SkImage_isTextureBacked'>isTextureBacked</a> <a href='#SkImage_isLazyGenerated'>isLazyGenerated</a>
---
<a name='SkImage_getBackendTexture'></a>
## getBackendTexture
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#GrBackendTexture'>GrBackendTexture</a> <a href='#SkImage_getBackendTexture'>getBackendTexture</a>(bool flushPendingGrContextIO, <a href='undocumented#GrSurfaceOrigin'>GrSurfaceOrigin</a>* origin = nullptr) const
</pre>
Retrieves the back-end texture. If <a href='#Image'>Image</a> has no back-end texture, an invalid
object is returned. Call <a href='undocumented#GrBackendTexture_isValid'>GrBackendTexture::isValid</a> to determine if the result
is valid.
If <a href='#SkImage_getBackendTexture_flushPendingGrContextIO'>flushPendingGrContextIO</a> is true, completes deferred I/O operations.
If <a href='#SkImage_getBackendTexture_origin'>origin</a> in not nullptr, copies location of content drawn into <a href='#Image'>Image</a>.
### Parameters
<table> <tr> <td><a name='SkImage_getBackendTexture_flushPendingGrContextIO'><code><strong>flushPendingGrContextIO</strong></code></a></td>
<td>flag to flush outstanding requests</td>
</tr>
<tr> <td><a name='SkImage_getBackendTexture_origin'><code><strong>origin</strong></code></a></td>
<td>storage for one of: <a href='undocumented#kTopLeft_GrSurfaceOrigin'>kTopLeft GrSurfaceOrigin</a>,
<a href='undocumented#kBottomLeft_GrSurfaceOrigin'>kBottomLeft GrSurfaceOrigin</a>; or nullptr</td>
</tr>
</table>
### Return Value
back-end API texture handle; invalid on failure
### Example
<div><fiddle-embed name="d093aad721261f421c4bef4a296aab48" gpu="true"></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeFromTexture'>MakeFromTexture</a><sup><a href='#SkImage_MakeFromTexture_2'>[2]</a></sup> <a href='#SkImage_isTextureBacked'>isTextureBacked</a>
---
## <a name='SkImage_CachingHint'>Enum SkImage::CachingHint</a>
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
enum <a href='#SkImage_CachingHint'>CachingHint</a> {
<a href='#SkImage_kAllow_CachingHint'>kAllow CachingHint</a>,
<a href='#SkImage_kDisallow_CachingHint'>kDisallow CachingHint</a>,
};
</pre>
<a href='#SkImage_CachingHint'>CachingHint</a> selects whether Skia may internally cache <a href='SkBitmap_Reference#Bitmap'>Bitmaps</a> generated by
decoding <a href='#Image'>Image</a>, or by copying <a href='#Image'>Image</a> from GPU to CPU. The default behavior
allows caching <a href='SkBitmap_Reference#Bitmap'>Bitmaps</a>.
Choose <a href='#SkImage_kDisallow_CachingHint'>kDisallow CachingHint</a> if <a href='#Image'>Image</a> pixels are to be used only once, or
if <a href='#Image'>Image</a> pixels reside in a cache outside of Skia, or to reduce memory pressure.
Choosing <a href='#SkImage_kAllow_CachingHint'>kAllow CachingHint</a> does not ensure that pixels will be cached.
<a href='#Image'>Image</a> pixels may not be cached if memory requirements are too large or
pixels are not accessible.
### Constants
<table style='border-collapse: collapse; width: 62.5em'>
<tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Const</th>
<th style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>Value</th>
<th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkImage_kAllow_CachingHint'><code>SkImage::kAllow_CachingHint</code></a></td>
<td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0</td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>
allows internally caching decoded and copied pixels</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkImage_kDisallow_CachingHint'><code>SkImage::kDisallow_CachingHint</code></a></td>
<td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>1</td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>
disallows internally caching decoded and copied pixels</td>
</tr>
</table>
### See Also
<a href='#SkImage_readPixels'>readPixels</a><sup><a href='#SkImage_readPixels_2'>[2]</a></sup> <a href='#SkImage_scalePixels'>scalePixels</a>
<a name='SkImage_readPixels'></a>
## readPixels
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
bool <a href='#SkImage_readPixels'>readPixels</a>(const <a href='SkImageInfo_Reference#SkImageInfo'>SkImageInfo</a>& dstInfo, void* dstPixels, size_t dstRowBytes, int srcX, int srcY,
<a href='#SkImage_CachingHint'>CachingHint</a> cachingHint = <a href='#SkImage_kAllow_CachingHint'>kAllow CachingHint</a>) const
</pre>
Copies <a href='SkRect_Reference#Rect'>Rect</a> of pixels from <a href='#Image'>Image</a> to <a href='#SkImage_readPixels_dstPixels'>dstPixels</a>. Copy starts at offset (<a href='#SkImage_readPixels_srcX'>srcX</a>, <a href='#SkImage_readPixels_srcY'>srcY</a>),
and does not exceed <a href='#Image'>Image</a> (<a href='#SkImage_width'>width</a>, <a href='#SkImage_height'>height</a>).
<a href='#SkImage_readPixels_dstInfo'>dstInfo</a> specifies width, height, <a href='SkImageInfo_Reference#Color_Type'>Color Type</a>, <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a>, and <a href='undocumented#Color_Space'>Color Space</a> of
destination. <a href='#SkImage_readPixels_dstRowBytes'>dstRowBytes</a> specifics the gap from one destination row to the next.
Returns true if pixels are copied. Returns false if:
<table> <tr>
<td><a href='#SkImage_readPixels_dstInfo'>dstInfo</a>.addr() equals nullptr</td>
</tr> <tr>
<td><a href='#SkImage_readPixels_dstRowBytes'>dstRowBytes</a> is less than <a href='#SkImage_readPixels_dstInfo'>dstInfo</a>.<a href='SkImageInfo_Reference#SkImageInfo'>minRowBytes</a></td>
</tr> <tr>
<td><a href='undocumented#Pixel_Ref'>Pixel Ref</a> is nullptr</td>
</tr>
</table>
<a href='#Pixels'>Pixels</a> are copied only if pixel conversion is possible. If <a href='#Image'>Image</a> <a href='SkImageInfo_Reference#Color_Type'>Color Type</a> is
<a href='SkImageInfo_Reference#kGray_8_SkColorType'>kGray_8_SkColorType</a>, or <a href='SkImageInfo_Reference#kAlpha_8_SkColorType'>kAlpha_8_SkColorType</a>; <a href='#SkImage_readPixels_dstInfo'>dstInfo</a>.<a href='#SkImage_colorType'>colorType</a> must match.
If <a href='#Image'>Image</a> <a href='SkImageInfo_Reference#Color_Type'>Color Type</a> is <a href='SkImageInfo_Reference#kGray_8_SkColorType'>kGray_8_SkColorType</a>, <a href='#SkImage_readPixels_dstInfo'>dstInfo</a>.<a href='#SkImage_colorSpace'>colorSpace</a> must match.
If <a href='#Image'>Image</a> <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a> is <a href='SkImageInfo_Reference#kOpaque_SkAlphaType'>kOpaque_SkAlphaType</a>, <a href='#SkImage_readPixels_dstInfo'>dstInfo</a>.<a href='#SkImage_alphaType'>alphaType</a> must
match. If <a href='#Image'>Image</a> <a href='undocumented#Color_Space'>Color Space</a> is nullptr, <a href='#SkImage_readPixels_dstInfo'>dstInfo</a>.<a href='#SkImage_colorSpace'>colorSpace</a> must match. Returns
false if pixel conversion is not possible.
<a href='#SkImage_readPixels_srcX'>srcX</a> and <a href='#SkImage_readPixels_srcY'>srcY</a> may be negative to copy only top or left of source. Returns
false if <a href='#SkImage_width'>width</a> or <a href='#SkImage_height'>height</a> is zero or negative.
Returns false ifabs(srcX) >= <a href='#Image'>Image</a> <a href='#SkImage_width'>width</a>,
or ifabs(srcY) >= <a href='#Image'>Image</a> <a href='#SkImage_height'>height</a>.
If <a href='#SkImage_readPixels_cachingHint'>cachingHint</a> is <a href='#SkImage_kAllow_CachingHint'>kAllow CachingHint</a>, pixels may be retained locally.
If <a href='#SkImage_readPixels_cachingHint'>cachingHint</a> is <a href='#SkImage_kDisallow_CachingHint'>kDisallow CachingHint</a>, pixels are not added to the local cache.
### Parameters
<table> <tr> <td><a name='SkImage_readPixels_dstInfo'><code><strong>dstInfo</strong></code></a></td>
<td>destination width, height, <a href='SkImageInfo_Reference#Color_Type'>Color Type</a>, <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a>, <a href='undocumented#Color_Space'>Color Space</a></td>
</tr>
<tr> <td><a name='SkImage_readPixels_dstPixels'><code><strong>dstPixels</strong></code></a></td>
<td>destination pixel storage</td>
</tr>
<tr> <td><a name='SkImage_readPixels_dstRowBytes'><code><strong>dstRowBytes</strong></code></a></td>
<td>destination row length</td>
</tr>
<tr> <td><a name='SkImage_readPixels_srcX'><code><strong>srcX</strong></code></a></td>
<td>column index whose absolute value is less than <a href='#SkImage_width'>width</a></td>
</tr>
<tr> <td><a name='SkImage_readPixels_srcY'><code><strong>srcY</strong></code></a></td>
<td>row index whose absolute value is less than <a href='#SkImage_height'>height</a></td>
</tr>
<tr> <td><a name='SkImage_readPixels_cachingHint'><code><strong>cachingHint</strong></code></a></td>
<td>one of: <a href='#SkImage_kAllow_CachingHint'>kAllow CachingHint</a>, <a href='#SkImage_kDisallow_CachingHint'>kDisallow CachingHint</a></td>
</tr>
</table>
### Return Value
true if pixels are copied to <a href='#SkImage_readPixels_dstPixels'>dstPixels</a>
### Example
<div><fiddle-embed name="8aa8ca63dff4641dfc6ea8a3c555d59c"></fiddle-embed></div>
### See Also
<a href='#SkImage_scalePixels'>scalePixels</a> <a href='SkBitmap_Reference#SkBitmap_readPixels'>SkBitmap::readPixels</a><sup><a href='SkBitmap_Reference#SkBitmap_readPixels_2'>[2]</a></sup><sup><a href='SkBitmap_Reference#SkBitmap_readPixels_3'>[3]</a></sup><sup><a href='SkBitmap_Reference#SkBitmap_readPixels_4'>[4]</a></sup> <a href='SkPixmap_Reference#SkPixmap_readPixels'>SkPixmap::readPixels</a><sup><a href='SkPixmap_Reference#SkPixmap_readPixels_2'>[2]</a></sup><sup><a href='SkPixmap_Reference#SkPixmap_readPixels_3'>[3]</a></sup><sup><a href='SkPixmap_Reference#SkPixmap_readPixels_4'>[4]</a></sup><sup><a href='SkPixmap_Reference#SkPixmap_readPixels_5'>[5]</a></sup> <a href='SkCanvas_Reference#SkCanvas_readPixels'>SkCanvas::readPixels</a><sup><a href='SkCanvas_Reference#SkCanvas_readPixels_2'>[2]</a></sup><sup><a href='SkCanvas_Reference#SkCanvas_readPixels_3'>[3]</a></sup> <a href='SkSurface_Reference#SkSurface_readPixels'>SkSurface::readPixels</a><sup><a href='SkSurface_Reference#SkSurface_readPixels_2'>[2]</a></sup><sup><a href='SkSurface_Reference#SkSurface_readPixels_3'>[3]</a></sup>
---
<a name='SkImage_readPixels_2'></a>
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
bool <a href='#SkImage_readPixels'>readPixels</a>(const <a href='SkPixmap_Reference#SkPixmap'>SkPixmap</a>& dst, int srcX, int srcY, <a href='#SkImage_CachingHint'>CachingHint</a> cachingHint = <a href='#SkImage_kAllow_CachingHint'>kAllow CachingHint</a>) const
</pre>
Copies a <a href='SkRect_Reference#Rect'>Rect</a> of pixels from <a href='#Image'>Image</a> to <a href='#SkImage_readPixels_2_dst'>dst</a>. Copy starts at (<a href='#SkImage_readPixels_2_srcX'>srcX</a>, <a href='#SkImage_readPixels_2_srcY'>srcY</a>), and
does not exceed <a href='#Image'>Image</a> (<a href='#SkImage_width'>width</a>, <a href='#SkImage_height'>height</a>).
<a href='#SkImage_readPixels_2_dst'>dst</a> specifies width, height, <a href='SkImageInfo_Reference#Color_Type'>Color Type</a>, <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a>, <a href='undocumented#Color_Space'>Color Space</a>, pixel storage,
and row bytes of destination. <a href='#SkImage_readPixels_2_dst'>dst</a>.<a href='SkPixmap_Reference#SkPixmap'>rowBytes</a> specifics the gap from one destination
row to the next. Returns true if pixels are copied. Returns false if:
<table> <tr>
<td><a href='#SkImage_readPixels_2_dst'>dst</a> pixel storage equals nullptr</td>
</tr> <tr>
<td><a href='#SkImage_readPixels_2_dst'>dst</a>.<a href='SkPixmap_Reference#SkPixmap'>rowBytes</a> is less than <a href='SkImageInfo_Reference#SkImageInfo_minRowBytes'>SkImageInfo::minRowBytes</a></td>
</tr> <tr>
<td><a href='undocumented#Pixel_Ref'>Pixel Ref</a> is nullptr</td>
</tr>
</table>
<a href='#Pixels'>Pixels</a> are copied only if pixel conversion is possible. If <a href='#Image'>Image</a> <a href='SkImageInfo_Reference#Color_Type'>Color Type</a> is
<a href='SkImageInfo_Reference#kGray_8_SkColorType'>kGray_8_SkColorType</a>, or <a href='SkImageInfo_Reference#kAlpha_8_SkColorType'>kAlpha_8_SkColorType</a>; <a href='#SkImage_readPixels_2_dst'>dst</a>.<a href='#SkImage_colorType'>colorType</a> must match.
If <a href='#Image'>Image</a> <a href='SkImageInfo_Reference#Color_Type'>Color Type</a> is <a href='SkImageInfo_Reference#kGray_8_SkColorType'>kGray_8_SkColorType</a>, <a href='#SkImage_readPixels_2_dst'>dst</a>.<a href='#SkImage_colorSpace'>colorSpace</a> must match.
If <a href='#Image'>Image</a> <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a> is <a href='SkImageInfo_Reference#kOpaque_SkAlphaType'>kOpaque_SkAlphaType</a>, <a href='#SkImage_readPixels_2_dst'>dst</a>.<a href='#SkImage_alphaType'>alphaType</a> must
match. If <a href='#Image'>Image</a> <a href='undocumented#Color_Space'>Color Space</a> is nullptr, <a href='#SkImage_readPixels_2_dst'>dst</a>.<a href='#SkImage_colorSpace'>colorSpace</a> must match. Returns
false if pixel conversion is not possible.
<a href='#SkImage_readPixels_2_srcX'>srcX</a> and <a href='#SkImage_readPixels_2_srcY'>srcY</a> may be negative to copy only top or left of source. Returns
false if <a href='#SkImage_width'>width</a> or <a href='#SkImage_height'>height</a> is zero or negative.
Returns false ifabs(srcX) >= <a href='#Image'>Image</a> <a href='#SkImage_width'>width</a>,
or ifabs(srcY) >= <a href='#Image'>Image</a> <a href='#SkImage_height'>height</a>.
If <a href='#SkImage_readPixels_2_cachingHint'>cachingHint</a> is <a href='#SkImage_kAllow_CachingHint'>kAllow CachingHint</a>, pixels may be retained locally.
If <a href='#SkImage_readPixels_2_cachingHint'>cachingHint</a> is <a href='#SkImage_kDisallow_CachingHint'>kDisallow CachingHint</a>, pixels are not added to the local cache.
### Parameters
<table> <tr> <td><a name='SkImage_readPixels_2_dst'><code><strong>dst</strong></code></a></td>
<td>destination <a href='SkPixmap_Reference#Pixmap'>Pixmap</a>: <a href='SkImageInfo_Reference#Image_Info'>Image Info</a>, pixels, row bytes</td>
</tr>
<tr> <td><a name='SkImage_readPixels_2_srcX'><code><strong>srcX</strong></code></a></td>
<td>column index whose absolute value is less than <a href='#SkImage_width'>width</a></td>
</tr>
<tr> <td><a name='SkImage_readPixels_2_srcY'><code><strong>srcY</strong></code></a></td>
<td>row index whose absolute value is less than <a href='#SkImage_height'>height</a></td>
</tr>
<tr> <td><a name='SkImage_readPixels_2_cachingHint'><code><strong>cachingHint</strong></code></a></td>
<td>one of: <a href='#SkImage_kAllow_CachingHint'>kAllow CachingHint</a>, <a href='#SkImage_kDisallow_CachingHint'>kDisallow CachingHint</a></td>
</tr>
</table>
### Return Value
true if pixels are copied to <a href='#SkImage_readPixels_2_dst'>dst</a>
### Example
<div><fiddle-embed name="b77a73c4baa63a4a8e2a4fdd96144d0b"></fiddle-embed></div>
### See Also
<a href='#SkImage_scalePixels'>scalePixels</a> <a href='SkBitmap_Reference#SkBitmap_readPixels'>SkBitmap::readPixels</a><sup><a href='SkBitmap_Reference#SkBitmap_readPixels_2'>[2]</a></sup><sup><a href='SkBitmap_Reference#SkBitmap_readPixels_3'>[3]</a></sup><sup><a href='SkBitmap_Reference#SkBitmap_readPixels_4'>[4]</a></sup> <a href='SkPixmap_Reference#SkPixmap_readPixels'>SkPixmap::readPixels</a><sup><a href='SkPixmap_Reference#SkPixmap_readPixels_2'>[2]</a></sup><sup><a href='SkPixmap_Reference#SkPixmap_readPixels_3'>[3]</a></sup><sup><a href='SkPixmap_Reference#SkPixmap_readPixels_4'>[4]</a></sup><sup><a href='SkPixmap_Reference#SkPixmap_readPixels_5'>[5]</a></sup> <a href='SkCanvas_Reference#SkCanvas_readPixels'>SkCanvas::readPixels</a><sup><a href='SkCanvas_Reference#SkCanvas_readPixels_2'>[2]</a></sup><sup><a href='SkCanvas_Reference#SkCanvas_readPixels_3'>[3]</a></sup> <a href='SkSurface_Reference#SkSurface_readPixels'>SkSurface::readPixels</a><sup><a href='SkSurface_Reference#SkSurface_readPixels_2'>[2]</a></sup><sup><a href='SkSurface_Reference#SkSurface_readPixels_3'>[3]</a></sup>
---
<a name='SkImage_scalePixels'></a>
## scalePixels
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
bool <a href='#SkImage_scalePixels'>scalePixels</a>(const <a href='SkPixmap_Reference#SkPixmap'>SkPixmap</a>& dst, <a href='undocumented#SkFilterQuality'>SkFilterQuality</a> filterQuality,
<a href='#SkImage_CachingHint'>CachingHint</a> cachingHint = <a href='#SkImage_kAllow_CachingHint'>kAllow CachingHint</a>) const
</pre>
Copies <a href='#Image'>Image</a> to <a href='#SkImage_scalePixels_dst'>dst</a>, scaling pixels to fit <a href='#SkImage_scalePixels_dst'>dst</a>.<a href='#SkImage_width'>width</a> and <a href='#SkImage_scalePixels_dst'>dst</a>.<a href='#SkImage_height'>height</a>, and
converting pixels to match <a href='#SkImage_scalePixels_dst'>dst</a>.<a href='#SkImage_colorType'>colorType</a> and <a href='#SkImage_scalePixels_dst'>dst</a>.<a href='#SkImage_alphaType'>alphaType</a>. Returns true if
pixels are copied. Returns false if <a href='#SkImage_scalePixels_dst'>dst</a>.addr() is nullptr, or <a href='#SkImage_scalePixels_dst'>dst</a>.<a href='SkPixmap_Reference#SkPixmap'>rowBytes</a> is
less than <a href='#SkImage_scalePixels_dst'>dst</a> <a href='SkImageInfo_Reference#SkImageInfo_minRowBytes'>SkImageInfo::minRowBytes</a>.
<a href='#Pixels'>Pixels</a> are copied only if pixel conversion is possible. If <a href='#Image'>Image</a> <a href='SkImageInfo_Reference#Color_Type'>Color Type</a> is
<a href='SkImageInfo_Reference#kGray_8_SkColorType'>kGray_8_SkColorType</a>, or <a href='SkImageInfo_Reference#kAlpha_8_SkColorType'>kAlpha_8_SkColorType</a>; <a href='#SkImage_scalePixels_dst'>dst</a>.<a href='#SkImage_colorType'>colorType</a> must match.
If <a href='#Image'>Image</a> <a href='SkImageInfo_Reference#Color_Type'>Color Type</a> is <a href='SkImageInfo_Reference#kGray_8_SkColorType'>kGray_8_SkColorType</a>, <a href='#SkImage_scalePixels_dst'>dst</a>.<a href='#SkImage_colorSpace'>colorSpace</a> must match.
If <a href='#Image'>Image</a> <a href='SkImageInfo_Reference#Alpha_Type'>Alpha Type</a> is <a href='SkImageInfo_Reference#kOpaque_SkAlphaType'>kOpaque_SkAlphaType</a>, <a href='#SkImage_scalePixels_dst'>dst</a>.<a href='#SkImage_alphaType'>alphaType</a> must
match. If <a href='#Image'>Image</a> <a href='undocumented#Color_Space'>Color Space</a> is nullptr, <a href='#SkImage_scalePixels_dst'>dst</a>.<a href='#SkImage_colorSpace'>colorSpace</a> must match. Returns
false if pixel conversion is not possible.
Scales the image, with <a href='#SkImage_scalePixels_filterQuality'>filterQuality</a>, to match <a href='#SkImage_scalePixels_dst'>dst</a>.<a href='#SkImage_width'>width</a> and <a href='#SkImage_scalePixels_dst'>dst</a>.<a href='#SkImage_height'>height</a>.
<a href='#SkImage_scalePixels_filterQuality'>filterQuality</a> <a href='undocumented#kNone_SkFilterQuality'>kNone_SkFilterQuality</a> is fastest, typically implemented with
<a href='undocumented#Nearest_Neighbor'>Filter Quality Nearest Neighbor</a>. <a href='undocumented#kLow_SkFilterQuality'>kLow_SkFilterQuality</a> is typically implemented with
<a href='undocumented#Bilerp'>Filter Quality Bilerp</a>. <a href='undocumented#kMedium_SkFilterQuality'>kMedium_SkFilterQuality</a> is typically implemented with
<a href='undocumented#Bilerp'>Filter Quality Bilerp</a>, and <a href='undocumented#MipMap'>Filter Quality MipMap</a> when size is reduced.
<a href='undocumented#kHigh_SkFilterQuality'>kHigh_SkFilterQuality</a> is slowest, typically implemented with <a href='undocumented#BiCubic'>Filter Quality BiCubic</a>.
If <a href='#SkImage_scalePixels_cachingHint'>cachingHint</a> is <a href='#SkImage_kAllow_CachingHint'>kAllow CachingHint</a>, pixels may be retained locally.
If <a href='#SkImage_scalePixels_cachingHint'>cachingHint</a> is <a href='#SkImage_kDisallow_CachingHint'>kDisallow CachingHint</a>, pixels are not added to the local cache.
### Parameters
<table> <tr> <td><a name='SkImage_scalePixels_dst'><code><strong>dst</strong></code></a></td>
<td>destination <a href='SkPixmap_Reference#Pixmap'>Pixmap</a>: <a href='SkImageInfo_Reference#Image_Info'>Image Info</a>, pixels, row bytes</td>
</tr>
<tr> <td><a name='SkImage_scalePixels_filterQuality'><code><strong>filterQuality</strong></code></a></td>
<td>one of: <a href='undocumented#kNone_SkFilterQuality'>kNone_SkFilterQuality</a>, <a href='undocumented#kLow_SkFilterQuality'>kLow_SkFilterQuality</a>,
<a href='undocumented#kMedium_SkFilterQuality'>kMedium_SkFilterQuality</a>, <a href='undocumented#kHigh_SkFilterQuality'>kHigh_SkFilterQuality</a></td>
</tr>
<tr> <td><a name='SkImage_scalePixels_cachingHint'><code><strong>cachingHint</strong></code></a></td>
<td>one of: <a href='#SkImage_kAllow_CachingHint'>kAllow CachingHint</a>, <a href='#SkImage_kDisallow_CachingHint'>kDisallow CachingHint</a></td>
</tr>
</table>
### Return Value
true if pixels are scaled to fit <a href='#SkImage_scalePixels_dst'>dst</a>
### Example
<div><fiddle-embed name="5949c9a63610cae30019e5b1899ee38f"></fiddle-embed></div>
### See Also
<a href='SkCanvas_Reference#SkCanvas_drawImage'>SkCanvas::drawImage</a><sup><a href='SkCanvas_Reference#SkCanvas_drawImage_2'>[2]</a></sup> <a href='#SkImage_readPixels'>readPixels</a><sup><a href='#SkImage_readPixels_2'>[2]</a></sup> <a href='SkPixmap_Reference#SkPixmap_scalePixels'>SkPixmap::scalePixels</a>
---
<a name='SkImage_encodeToData'></a>
## encodeToData
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkData'>SkData</a>&gt; <a href='#SkImage_encodeToData'>encodeToData</a>(<a href='undocumented#SkEncodedImageFormat'>SkEncodedImageFormat</a> encodedImageFormat, int quality) const
</pre>
Encodes <a href='#Image'>Image</a> pixels, returning result as <a href='undocumented#SkData'>SkData</a>.
Returns nullptr if encoding fails, or if <a href='#SkImage_encodeToData_encodedImageFormat'>encodedImageFormat</a> is not supported.
<a href='#Image'>Image</a> encoding in a format requires both building with one or more of:
SK_HAS_JPEG_LIBRARY, SK_HAS_PNG_LIBRARY, SK_HAS_WEBP_LIBRARY; and platform support
for the encoded format.
If SK_BUILD_FOR_MAC or SK_BUILD_FOR_IOS is defined, <a href='#SkImage_encodeToData_encodedImageFormat'>encodedImageFormat</a> can
additionally be one of: <a href='undocumented#SkEncodedImageFormat_kICO'>SkEncodedImageFormat::kICO</a>, <a href='undocumented#SkEncodedImageFormat_kBMP'>SkEncodedImageFormat::kBMP</a>,
<a href='undocumented#SkEncodedImageFormat_kGIF'>SkEncodedImageFormat::kGIF</a>.
<a href='#SkImage_encodeToData_quality'>quality</a> is a platform and format specific metric trading off size and encoding
error. When used, <a href='#SkImage_encodeToData_quality'>quality</a> equaling 100 encodes with the least error. <a href='#SkImage_encodeToData_quality'>quality</a> may
be ignored by the encoder.
### Parameters
<table> <tr> <td><a name='SkImage_encodeToData_encodedImageFormat'><code><strong>encodedImageFormat</strong></code></a></td>
<td>one of: <a href='undocumented#SkEncodedImageFormat_kJPEG'>SkEncodedImageFormat::kJPEG</a>, <a href='undocumented#SkEncodedImageFormat_kPNG'>SkEncodedImageFormat::kPNG</a>,
<a href='undocumented#SkEncodedImageFormat_kWEBP'>SkEncodedImageFormat::kWEBP</a></td>
</tr>
<tr> <td><a name='SkImage_encodeToData_quality'><code><strong>quality</strong></code></a></td>
<td>encoder specific metric with 100 equaling best</td>
</tr>
</table>
### Return Value
encoded <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="7a3bf8851bb7160e4e49c48f8c09639d"></fiddle-embed></div>
### See Also
<a href='#SkImage_refEncodedData'>refEncodedData</a> <a href='#SkImage_MakeFromEncoded'>MakeFromEncoded</a>
---
<a name='SkImage_encodeToData_2'></a>
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkData'>SkData</a>&gt; <a href='#SkImage_encodeToData'>encodeToData</a>() const
</pre>
Encodes <a href='#Image'>Image</a> pixels, returning result as <a href='undocumented#SkData'>SkData</a>. Returns existing encoded data
if present; otherwise, <a href='#Image'>Image</a> is encoded with <a href='undocumented#SkEncodedImageFormat_kPNG'>SkEncodedImageFormat::kPNG</a>. Skia
must be built with SK_HAS_PNG_LIBRARY to encode <a href='#Image'>Image</a>.
Returns nullptr if existing encoded data is missing or invalid, and
encoding fails.
### Return Value
encoded <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="30cee813f6aa476b0a9c8a24283e53a3"></fiddle-embed></div>
### See Also
<a href='#SkImage_refEncodedData'>refEncodedData</a> <a href='#SkImage_MakeFromEncoded'>MakeFromEncoded</a>
---
<a name='SkImage_refEncodedData'></a>
## refEncodedData
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkData'>SkData</a>&gt; <a href='#SkImage_refEncodedData'>refEncodedData</a>() const
</pre>
Returns encoded <a href='#Image'>Image</a> pixels as <a href='undocumented#SkData'>SkData</a>, if <a href='#Image'>Image</a> was created from supported
encoded stream format. Platform support for formats vary and may require building
with one or more of: SK_HAS_JPEG_LIBRARY, SK_HAS_PNG_LIBRARY, SK_HAS_WEBP_LIBRARY.
Returns nullptr if <a href='#Image'>Image</a> contents are not encoded.
### Return Value
encoded <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="80856fe921ce36f8d5a32d8672bccbfc" gpu="true"></fiddle-embed></div>
### See Also
<a href='#SkImage_encodeToData'>encodeToData</a><sup><a href='#SkImage_encodeToData_2'>[2]</a></sup> <a href='#SkImage_MakeFromEncoded'>MakeFromEncoded</a>
---
## <a name='Utility'>Utility</a>
<table style='border-collapse: collapse; width: 62.5em'>
<tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Topic</th>
<th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_encodeToData'>encodeToData</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns encoded <a href='#Image'>Image</a> as <a href='undocumented#SkData'>SkData</a></td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_encodeToData'>encodeToData(SkEncodedImageFormat encodedImageFormat, int quality)</a> const</td>
</tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_encodeToData_2'>encodeToData</a> const</td>
</tr>
<tr>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a href='#SkImage_refEncodedData'>refEncodedData</a></td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>returns <a href='#Image'>Image</a> encoded in <a href='undocumented#SkData'>SkData</a> if present</td>
</tr>
</table>
<a name='SkImage_makeSubset'></a>
## makeSubset
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_makeSubset'>makeSubset</a>(const <a href='SkIRect_Reference#SkIRect'>SkIRect</a>& subset) const
</pre>
Returns <a href='#SkImage_makeSubset_subset'>subset</a> of <a href='#Image'>Image</a>. <a href='#SkImage_makeSubset_subset'>subset</a> must be fully contained by <a href='#Image'>Image</a> <a href='#SkImage_dimensions'>dimensions</a>.
The implementation may share pixels, or may copy them.
Returns nullptr if <a href='#SkImage_makeSubset_subset'>subset</a> is empty, or <a href='#SkImage_makeSubset_subset'>subset</a> is not contained by bounds, or
pixels in <a href='#Image'>Image</a> could not be read or copied.
### Parameters
<table> <tr> <td><a name='SkImage_makeSubset_subset'><code><strong>subset</strong></code></a></td>
<td>bounds of returned <a href='#Image'>Image</a></td>
</tr>
</table>
### Return Value
partial or full <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="fef2a36bee224e92500199fa9d3cbb8b"></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeFromEncoded'>MakeFromEncoded</a>
---
<a name='SkImage_makeTextureImage'></a>
## makeTextureImage
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_makeTextureImage'>makeTextureImage</a>(<a href='undocumented#GrContext'>GrContext</a>* context, <a href='undocumented#SkColorSpace'>SkColorSpace</a>* dstColorSpace,
<a href='undocumented#GrMipMapped'>GrMipMapped</a> mipMapped = <a href='undocumented#GrMipMapped_kNo'>GrMipMapped::kNo</a>) const
</pre>
Returns <a href='#Image'>Image</a> backed by <a href='undocumented#GPU_Texture'>GPU Texture</a> associated with <a href='#SkImage_makeTextureImage_context'>context</a>. Returned <a href='#Image'>Image</a> is
compatible with <a href='SkSurface_Reference#Surface'>Surface</a> created with <a href='#SkImage_makeTextureImage_dstColorSpace'>dstColorSpace</a>. The returned <a href='#Image'>Image</a> respects
<a href='#SkImage_makeTextureImage_mipMapped'>mipMapped</a> setting; if <a href='#SkImage_makeTextureImage_mipMapped'>mipMapped</a> equals <a href='undocumented#GrMipMapped_kYes'>GrMipMapped::kYes</a>, the backing texture
allocates <a href='undocumented#Mip_Map'>Mip Map</a> levels. Returns original <a href='#Image'>Image</a> if <a href='#SkImage_makeTextureImage_context'>context</a>
and <a href='#SkImage_makeTextureImage_dstColorSpace'>dstColorSpace</a> match and <a href='#SkImage_makeTextureImage_mipMapped'>mipMapped</a> is compatible with backing <a href='undocumented#GPU_Texture'>GPU Texture</a>.
Returns nullptr if <a href='#SkImage_makeTextureImage_context'>context</a> is nullptr, or if <a href='#Image'>Image</a> was created with another
<a href='undocumented#GrContext'>GrContext</a>.
### Parameters
<table> <tr> <td><a name='SkImage_makeTextureImage_context'><code><strong>context</strong></code></a></td>
<td><a href='undocumented#GPU_Context'>GPU Context</a></td>
</tr>
<tr> <td><a name='SkImage_makeTextureImage_dstColorSpace'><code><strong>dstColorSpace</strong></code></a></td>
<td>range of colors of matching <a href='SkSurface_Reference#Surface'>Surface</a> on GPU</td>
</tr>
<tr> <td><a name='SkImage_makeTextureImage_mipMapped'><code><strong>mipMapped</strong></code></a></td>
<td>whether created <a href='#Image'>Image</a> texture must allocate <a href='undocumented#Mip_Map'>Mip Map</a> levels</td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="b14d9debfe87295373b44a179992a999" gpu="true"></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeFromTexture'>MakeFromTexture</a><sup><a href='#SkImage_MakeFromTexture_2'>[2]</a></sup>
---
<a name='SkImage_makeNonTextureImage'></a>
## makeNonTextureImage
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_makeNonTextureImage'>makeNonTextureImage</a>() const
</pre>
Returns <a href='#Raster_Image'>Raster Image</a> or <a href='#Lazy_Image'>Lazy Image</a>. Copies <a href='#Image'>Image</a> backed by <a href='undocumented#GPU_Texture'>GPU Texture</a> into
CPU memory if needed. Returns original <a href='#Image'>Image</a> if decoded in <a href='undocumented#Raster_Bitmap'>Raster Bitmap</a>,
or if encoded in a stream.
Returns nullptr if backed by <a href='undocumented#GPU_Texture'>GPU Texture</a> and copy fails.
### Return Value
<a href='#Raster_Image'>Raster Image</a>, <a href='#Lazy_Image'>Lazy Image</a>, or nullptr
### Example
<div><fiddle-embed name="c77bfb00fb82e378eea4b7f7c18a8b84" gpu="true"></fiddle-embed></div>
### See Also
<a href='#SkImage_makeTextureImage'>makeTextureImage</a> <a href='#SkImage_makeRasterImage'>makeRasterImage</a> <a href='#SkImage_MakeBackendTextureFromSkImage'>MakeBackendTextureFromSkImage</a>
---
<a name='SkImage_makeRasterImage'></a>
## makeRasterImage
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_makeRasterImage'>makeRasterImage</a>() const
</pre>
Returns <a href='#Raster_Image'>Raster Image</a>. Copies <a href='#Image'>Image</a> backed by <a href='undocumented#GPU_Texture'>GPU Texture</a> into CPU memory,
or decodes <a href='#Image'>Image</a> from <a href='#Lazy_Image'>Lazy Image</a>. Returns original <a href='#Image'>Image</a> if decoded in
<a href='undocumented#Raster_Bitmap'>Raster Bitmap</a>.
Returns nullptr if copy, decode, or pixel read fails.
### Return Value
<a href='#Raster_Image'>Raster Image</a>, or nullptr
### Example
<div><fiddle-embed name="505a6d9458394b1deb5d2f6c44e1cd76" gpu="true"></fiddle-embed></div>
### See Also
<a href='#SkImage_isTextureBacked'>isTextureBacked</a> <a href='#SkImage_isLazyGenerated'>isLazyGenerated</a> <a href='#SkImage_MakeFromRaster'>MakeFromRaster</a>
---
<a name='SkImage_makeWithFilter'></a>
## makeWithFilter
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_makeWithFilter'>makeWithFilter</a>(const <a href='undocumented#SkImageFilter'>SkImageFilter</a>* filter, const <a href='SkIRect_Reference#SkIRect'>SkIRect</a>& subset,
const <a href='SkIRect_Reference#SkIRect'>SkIRect</a>& clipBounds, <a href='SkIRect_Reference#SkIRect'>SkIRect</a>* outSubset, <a href='SkIPoint_Reference#SkIPoint'>SkIPoint</a>* offset) const
</pre>
Creates filtered <a href='#Image'>Image</a>. <a href='#SkImage_makeWithFilter_filter'>filter</a> processes original <a href='#Image'>Image</a>, potentially changing
color, position, and size. <a href='#SkImage_makeWithFilter_subset'>subset</a> is the bounds of original <a href='#Image'>Image</a> processed
by <a href='#SkImage_makeWithFilter_filter'>filter</a>. <a href='#SkImage_makeWithFilter_clipBounds'>clipBounds</a> is the expected bounds of the filtered <a href='#Image'>Image</a>. <a href='#SkImage_makeWithFilter_outSubset'>outSubset</a>
is required storage for the actual bounds of the filtered <a href='#Image'>Image</a>. <a href='#SkImage_makeWithFilter_offset'>offset</a> is
required storage for translation of returned <a href='#Image'>Image</a>.
Returns nullptr if <a href='#Image'>Image</a> could not be created. If nullptr is returned, <a href='#SkImage_makeWithFilter_outSubset'>outSubset</a>
and <a href='#SkImage_makeWithFilter_offset'>offset</a> are undefined.
Useful for animation of <a href='undocumented#SkImageFilter'>SkImageFilter</a> that varies size from frame to frame.
Returned <a href='#Image'>Image</a> is created larger than required by <a href='#SkImage_makeWithFilter_filter'>filter</a> so that <a href='undocumented#GPU_Texture'>GPU Texture</a>
can be reused with different sized effects. <a href='#SkImage_makeWithFilter_outSubset'>outSubset</a> describes the valid bounds
of <a href='undocumented#GPU_Texture'>GPU Texture</a> returned. <a href='#SkImage_makeWithFilter_offset'>offset</a> translates the returned <a href='#Image'>Image</a> to keep subsequent
animation frames aligned with respect to each other.
### Parameters
<table> <tr> <td><a name='SkImage_makeWithFilter_filter'><code><strong>filter</strong></code></a></td>
<td>how <a href='#Image'>Image</a> is sampled when transformed</td>
</tr>
<tr> <td><a name='SkImage_makeWithFilter_subset'><code><strong>subset</strong></code></a></td>
<td>bounds of <a href='#Image'>Image</a> processed by <a href='#SkImage_makeWithFilter_filter'>filter</a></td>
</tr>
<tr> <td><a name='SkImage_makeWithFilter_clipBounds'><code><strong>clipBounds</strong></code></a></td>
<td>expected bounds of filtered <a href='#Image'>Image</a></td>
</tr>
<tr> <td><a name='SkImage_makeWithFilter_outSubset'><code><strong>outSubset</strong></code></a></td>
<td>storage for returned <a href='#Image'>Image</a> bounds</td>
</tr>
<tr> <td><a name='SkImage_makeWithFilter_offset'><code><strong>offset</strong></code></a></td>
<td>storage for returned <a href='#Image'>Image</a> translation</td>
</tr>
</table>
### Return Value
filtered <a href='#Image'>Image</a>, or nullptr
### Example
<div><fiddle-embed name="17547129251dd9607c381a3cc30cff15" gpu="true"><div>In each frame of the animation, filtered <a href='#Image'>Image</a> is drawn in a different location.
By translating canvas by returned <a href='#SkImage_makeWithFilter_offset'>offset</a>, <a href='#Image'>Image</a> appears stationary.
</div></fiddle-embed></div>
### See Also
<a href='#SkImage_makeShader'>makeShader</a><sup><a href='#SkImage_makeShader_2'>[2]</a></sup> <a href='SkPaint_Reference#SkPaint_setImageFilter'>SkPaint::setImageFilter</a>
---
## <a name='SkImage_BackendTextureReleaseProc'>Typedef SkImage::BackendTextureReleaseProc</a>
<a href='#SkImage_BackendTextureReleaseProc'>BackendTextureReleaseProc</a>
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
typedef std::function<void(GrBackendTexture)> <a href='#SkImage_BackendTextureReleaseProc'>BackendTextureReleaseProc</a>;
</pre>
Defines a callback function, taking one parameter of type <a href='undocumented#GrBackendTexture'>GrBackendTexture</a> with
no return value. Function is called when back-end texture is to be released.
<a name='SkImage_MakeBackendTextureFromSkImage'></a>
## MakeBackendTextureFromSkImage
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
static bool <a href='#SkImage_MakeBackendTextureFromSkImage'>MakeBackendTextureFromSkImage</a>(<a href='undocumented#GrContext'>GrContext</a>* context, <a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; image,
<a href='undocumented#GrBackendTexture'>GrBackendTexture</a>* backendTexture,
<a href='#SkImage_BackendTextureReleaseProc'>BackendTextureReleaseProc</a>* backendTextureReleaseProc)
</pre>
Creates a <a href='undocumented#GrBackendTexture'>GrBackendTexture</a> from the provided <a href='#SkImage'>SkImage</a>. Returns true and
stores result in <a href='#SkImage_MakeBackendTextureFromSkImage_backendTexture'>backendTexture</a> and <a href='#SkImage_MakeBackendTextureFromSkImage_backendTextureReleaseProc'>backendTextureReleaseProc</a> if
texture is created; otherwise, returns false and leaves
<a href='#SkImage_MakeBackendTextureFromSkImage_backendTexture'>backendTexture</a> and <a href='#SkImage_MakeBackendTextureFromSkImage_backendTextureReleaseProc'>backendTextureReleaseProc</a> unmodified.
Call <a href='#SkImage_MakeBackendTextureFromSkImage_backendTextureReleaseProc'>backendTextureReleaseProc</a> after deleting <a href='#SkImage_MakeBackendTextureFromSkImage_backendTexture'>backendTexture</a>.
<a href='#SkImage_MakeBackendTextureFromSkImage_backendTextureReleaseProc'>backendTextureReleaseProc</a> cleans up auxiliary data related to returned
<a href='#SkImage_MakeBackendTextureFromSkImage_backendTexture'>backendTexture</a>. The caller must delete returned <a href='#SkImage_MakeBackendTextureFromSkImage_backendTexture'>backendTexture</a> after use.
If <a href='#Image'>Image</a> is both texture backed and singly referenced, <a href='#SkImage_MakeBackendTextureFromSkImage_image'>image</a> is returned in
<a href='#SkImage_MakeBackendTextureFromSkImage_backendTexture'>backendTexture</a> without conversion or making a copy. <a href='#Image'>Image</a> is singly referenced
if its was transferred solely using std::move().
If <a href='#Image'>Image</a> is not texture backed, returns texture with <a href='#Image'>Image</a> contents.
### Parameters
<table> <tr> <td><a name='SkImage_MakeBackendTextureFromSkImage_context'><code><strong>context</strong></code></a></td>
<td><a href='undocumented#GPU_Context'>GPU Context</a></td>
</tr>
<tr> <td><a name='SkImage_MakeBackendTextureFromSkImage_image'><code><strong>image</strong></code></a></td>
<td><a href='#Image'>Image</a> used for texture</td>
</tr>
<tr> <td><a name='SkImage_MakeBackendTextureFromSkImage_backendTexture'><code><strong>backendTexture</strong></code></a></td>
<td>storage for back-end texture</td>
</tr>
<tr> <td><a name='SkImage_MakeBackendTextureFromSkImage_backendTextureReleaseProc'><code><strong>backendTextureReleaseProc</strong></code></a></td>
<td>storage for clean up function</td>
</tr>
</table>
### Return Value
true if back-end texture was created
### Example
<div><fiddle-embed name="06aeb3cf63ffccf7b49fe556e5def351" gpu="true"></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeFromTexture'>MakeFromTexture</a><sup><a href='#SkImage_MakeFromTexture_2'>[2]</a></sup> <a href='#SkImage_makeTextureImage'>makeTextureImage</a>
---
## <a name='SkImage_LegacyBitmapMode'>Enum SkImage::LegacyBitmapMode</a>
Deprecated.
soon
<pre style="padding: 1em 1em 1em 1em;width: 62.5em; background-color: #f0f0f0">
enum <a href='#SkImage_LegacyBitmapMode'>LegacyBitmapMode</a> {
<a href='#SkImage_kRO_LegacyBitmapMode'>kRO LegacyBitmapMode</a>,
};
</pre>
### Constants
<table style='border-collapse: collapse; width: 62.5em'>
<tr><th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Const</th>
<th style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>Value</th>
<th style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>Description</th></tr>
<tr style='background-color: #f0f0f0; '>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '><a name='SkImage_kRO_LegacyBitmapMode'><code>SkImage::kRO_LegacyBitmapMode</code></a></td>
<td style='text-align: center; border: 2px solid #dddddd; padding: 8px; '>0</td>
<td style='text-align: left; border: 2px solid #dddddd; padding: 8px; '>
returned bitmap is read-only and immutable</td>
</tr>
</table>
<a name='SkImage_asLegacyBitmap'></a>
## asLegacyBitmap
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
bool <a href='#SkImage_asLegacyBitmap'>asLegacyBitmap</a>(<a href='SkBitmap_Reference#SkBitmap'>SkBitmap</a>* bitmap, <a href='#SkImage_LegacyBitmapMode'>LegacyBitmapMode</a> legacyBitmapMode = <a href='#SkImage_kRO_LegacyBitmapMode'>kRO LegacyBitmapMode</a>) const
</pre>
Creates raster <a href='SkBitmap_Reference#Bitmap'>Bitmap</a> with same pixels as <a href='#Image'>Image</a>. If <a href='#SkImage_asLegacyBitmap_legacyBitmapMode'>legacyBitmapMode</a> is
<a href='#SkImage_kRO_LegacyBitmapMode'>kRO LegacyBitmapMode</a>, returned <a href='#SkImage_asLegacyBitmap_bitmap'>bitmap</a> is read-only and immutable.
Returns true if <a href='SkBitmap_Reference#Bitmap'>Bitmap</a> is stored in <a href='#SkImage_asLegacyBitmap_bitmap'>bitmap</a>. Returns false and resets <a href='#SkImage_asLegacyBitmap_bitmap'>bitmap</a> if
<a href='SkBitmap_Reference#Bitmap'>Bitmap</a> write did not succeed.
### Parameters
<table> <tr> <td><a name='SkImage_asLegacyBitmap_bitmap'><code><strong>bitmap</strong></code></a></td>
<td>storage for legacy <a href='SkBitmap_Reference#Bitmap'>Bitmap</a></td>
</tr>
<tr> <td><a name='SkImage_asLegacyBitmap_legacyBitmapMode'><code><strong>legacyBitmapMode</strong></code></a></td>
<td>to be deprecated</td>
</tr>
</table>
### Return Value
true if <a href='SkBitmap_Reference#Bitmap'>Bitmap</a> was created
### Example
<div><fiddle-embed name="78374702fa113076ddc6070053ab5cd4" gpu="true"></fiddle-embed></div>
### See Also
<a href='#SkImage_MakeRasterData'>MakeRasterData</a> <a href='#SkImage_makeRasterImage'>makeRasterImage</a> <a href='#SkImage_makeNonTextureImage'>makeNonTextureImage</a>
---
<a name='SkImage_isLazyGenerated'></a>
## isLazyGenerated
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
bool <a href='#SkImage_isLazyGenerated'>isLazyGenerated</a>() const
</pre>
Returns true if <a href='#Image'>Image</a> is backed by an image-generator or other service that creates
and caches its pixels or texture on-demand.
### Return Value
true if <a href='#Image'>Image</a> is created as needed
### Example
<div><fiddle-embed name="a8b8bd4bfe968e2c63085f867665227f"></fiddle-embed></div>
### Example
<div><fiddle-embed name="25305461b916baf40d7d379e04a5589c" gpu="true"></fiddle-embed></div>
### See Also
<a href='#SkImage_isTextureBacked'>isTextureBacked</a> MakeNonTextureImage
---
<a name='SkImage_makeColorSpace'></a>
## makeColorSpace
<pre style="padding: 1em 1em 1em 1em; width: 62.5em;background-color: #f0f0f0">
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='#SkImage'>SkImage</a>&gt; <a href='#SkImage_makeColorSpace'>makeColorSpace</a>(
<a href='undocumented#sk_sp'>sk sp</a>&lt;<a href='undocumented#SkColorSpace'>SkColorSpace</a>&gt; target,
<a href='undocumented#SkTransferFunctionBehavior'>SkTransferFunctionBehavior</a> premulBehavior = <a href='undocumented#SkTransferFunctionBehavior_kIgnore'>SkTransferFunctionBehavior::kIgnore</a>) const
</pre>
Creates <a href='#Image'>Image</a> in <a href='#SkImage_makeColorSpace_target'>target</a> <a href='undocumented#Color_Space'>Color Space</a>.
Returns nullptr if <a href='#Image'>Image</a> could not be created.
Returns original <a href='#Image'>Image</a> if it is in <a href='#SkImage_makeColorSpace_target'>target</a> <a href='undocumented#Color_Space'>Color Space</a>.
Otherwise, converts pixels from <a href='#Image'>Image</a> <a href='undocumented#Color_Space'>Color Space</a> to <a href='#SkImage_makeColorSpace_target'>target</a> <a href='undocumented#Color_Space'>Color Space</a>.
If <a href='#Image'>Image</a> <a href='#SkImage_colorSpace'>colorSpace</a> returns nullptr, <a href='#Image'>Image</a> <a href='undocumented#Color_Space'>Color Space</a> is assumed to be sRGB.
<a href='undocumented#SkTransferFunctionBehavior'>SkTransferFunctionBehavior</a> is to be deprecated.
Set <a href='#SkImage_makeColorSpace_premulBehavior'>premulBehavior</a> to <a href='undocumented#SkTransferFunctionBehavior_kRespect'>SkTransferFunctionBehavior::kRespect</a> to convert <a href='#Image'>Image</a>
pixels to a linear space, before converting to destination <a href='SkImageInfo_Reference#Color_Type'>Color Type</a>
and <a href='undocumented#Color_Space'>Color Space</a>.
Set <a href='#SkImage_makeColorSpace_premulBehavior'>premulBehavior</a> to <a href='undocumented#SkTransferFunctionBehavior_kIgnore'>SkTransferFunctionBehavior::kIgnore</a> to treat <a href='#Image'>Image</a>
pixels as linear, when converting to destination <a href='SkImageInfo_Reference#Color_Type'>Color Type</a>
and <a href='undocumented#Color_Space'>Color Space</a>, ignoring pixel encoding. <a href='#SkImage_makeColorSpace_premulBehavior'>premulBehavior</a> is
<a href='undocumented#SkTransferFunctionBehavior_kIgnore'>SkTransferFunctionBehavior::kIgnore</a> by default.
### Parameters
<table> <tr> <td><a name='SkImage_makeColorSpace_target'><code><strong>target</strong></code></a></td>
<td><a href='undocumented#Color_Space'>Color Space</a> describing color range of returned <a href='#Image'>Image</a></td>
</tr>
<tr> <td><a name='SkImage_makeColorSpace_premulBehavior'><code><strong>premulBehavior</strong></code></a></td>
<td>one of: <a href='undocumented#SkTransferFunctionBehavior_kRespect'>SkTransferFunctionBehavior::kRespect</a>,
<a href='undocumented#SkTransferFunctionBehavior_kIgnore'>SkTransferFunctionBehavior::kIgnore</a></td>
</tr>
</table>
### Return Value
created <a href='#Image'>Image</a> in <a href='#SkImage_makeColorSpace_target'>target</a> <a href='undocumented#Color_Space'>Color Space</a>
### Example
<div><fiddle-embed name="ab8bcb9acecbee444019a724d2b0503c"></fiddle-embed></div>
### See Also
MakeFromPixture <a href='#SkImage_MakeFromTexture'>MakeFromTexture</a><sup><a href='#SkImage_MakeFromTexture_2'>[2]</a></sup>
---
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