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* SkJpegCodecGravatar msarett2015-04-15
| | | | | | | | | | | | Enables basic decoding for jpegs Includes rewinding 565, YUV, and Jpeg encoding are not yet implemented BUG=skia:3257 Review URL: https://codereview.chromium.org/1076923002
* Implementing filling for SkBmpCodecGravatar msarett2015-04-10
| | | | | | | | | | | | | | | The bmp codec currently returns kIncompleteInput when the stream is truncated, which we treat as a partial success. However, we neglect the fill the remaining pixels in the image, leaving these uninitialized. This CL addresses this problem by initializing the remaining pixels in the image to default values. BUG=skia:3257 Review URL: https://codereview.chromium.org/1075243003
* ***Disables swizzles to 565.Gravatar msarett2015-04-09
| | | | | | | | | | | | | | | | | | | | | | | We may want to enable swizzles to 565 for images that are encoded in a format similar to 565, however, we do not want to take images that decode naturally to kN32 and then convert them to 565. ***Enable swizzles to kIndex_8. For images encoded in a color table format, we suggest that they be decoded to kIndex_8. When we decode, we only allow conversion to kIndex_8 if it matches the suggested color type (except wbmp which seems good as is). ***Modify dm to test images that decode to kIndex_8. BUG=skia:3257 BUG=skia:3440 Review URL: https://codereview.chromium.org/1055743003
* Add scanline decoding to SkCodec.Gravatar scroggo2015-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add an interface for decoding scanlines, and implement that interface in the PNG decoder. Use a separate method to determine whether an image that used a type with alpha was actually opaque. SkScanlineDecoder.h: New interface for decoding scanlines. SkCodec.h: Add getScanlineDecoder. Add a virtual function (with non-virtual caller) for determining whether the image truly had alpha. The client can call this to determine if the image was actually opaque if it reported having alpha. Remove code to sneakily change the passed in alpha type. SkCodec_libpng.*: Split up code onGetPixels into helper functions that can be shared with the scanline decoder. Implement scanline decoding. Implement onReallyHasAlpha. SkSwizzler.*: Add a new SrcConfig as a default, which is invalid. Add a function for setting fDstRow directly. Assert fDstRow is not NULL. BUG=skia:3257 Review URL: https://codereview.chromium.org/1010903003
* Adding swizzles for bmp:Gravatar msarett2015-03-18
| | | | | | | | | | We now support kN32 and kRGB_565 color types. Additionally, we support premul, unpremul, and opaque alpha types. Unpremul is currently untested as we cannot currently draw to unpremul. BUG=skia: Review URL: https://codereview.chromium.org/1013743003
* Option for SkCodec to treat dst as all zeroes.Gravatar scroggo2015-03-17
| | | | | | | This recreates SkImageDecoder's feature to skip writing zeroes for SkCodec. Review URL: https://codereview.chromium.org/980903002
* Revert "Revert of fix for invalid for loop syntax broke build (patchset #1 ↵Gravatar msarett2015-03-16
| | | | | | | | | | | | | | | | id:1 of https://codereview.chromium.org/1007373003/)" This reverts commit d18475854ce232de71c5463e0654f459d4abfd43. Revert "Revert "Implementation of image decoding for bmp files, in accordance with the new API."" This reverts commit dfdec78a5d02e8690998741a9fe5b71a08ca3232. BUG=skia: TBR= Review URL: https://codereview.chromium.org/1016443003
* Revert "Implementation of image decoding for bmp files, in accordance with ↵Gravatar msarett2015-03-16
| | | | | | | | | | | | | the new API." This reverts commit 3675874468de7228944ce21922e6ec863f5f2310. BUG=skia: NOTREECHECKS=true NOTRY=true TBR= Review URL: https://codereview.chromium.org/1012873002
* Implementation of image decoding for bmp files, in accordance with the new API.Gravatar msarett2015-03-16
| | | | | | | | | | Currently decodes to opaque and unpremul. Tested on local test suite. BUG=skia:3257 Review URL: https://codereview.chromium.org/947283002
* Add SkCodec, including PNG implementation.Gravatar scroggo2015-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DM: Add a flag to use SkCodec instead of SkImageDecoder. SkCodec: Base class for codecs, allowing creation from an SkStream or an SkData. An SkCodec, on creation, knows properties of the data like its width and height. Further calls can be used to generate the image. TODO: Add scanline iterator SkPngCodec: New decoder for png. Wraps libpng. The code has been repurposed from SkImageDecoder_libpng. TODO: Handle other destination colortypes TODO: Substitute the transpose color TODO: Allow silencing warnings TODO: Use RGB instead of filler? TODO: sRGB SkSwizzler: Simplified version of SkScaledSampler. Unlike the sampler, this object does no sampling. TODO: Implement other swizzles. Requires a gclient sync to pull down libpng. BUG=skia:3257 Committed: https://skia.googlesource.com/skia/+/ca358852b4fed656d11107b2aaf28318a4518b49 (and then reverted) Review URL: https://codereview.chromium.org/930283002
* Revert of Add SkCodec, including PNG implementation. (patchset #24 id:460001 ↵Gravatar scroggo2015-03-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | of https://codereview.chromium.org/930283002/) Reason for revert: Breaking windows bots all over the place :( Original issue's description: > Add SkCodec, including PNG implementation. > > DM: > Add a flag to use SkCodec instead of SkImageDecoder. > > SkCodec: > Base class for codecs, allowing creation from an SkStream or an SkData. > An SkCodec, on creation, knows properties of the data like its width and height. Further calls can be used to generate the image. > TODO: Add scanline iterator > > SkPngCodec: > New decoder for png. Wraps libpng. The code has been repurposed from SkImageDecoder_libpng. > TODO: Handle other destination colortypes > TODO: Substitute the transpose color > TODO: Allow silencing warnings > TODO: Use RGB instead of filler? > TODO: sRGB > > SkSwizzler: > Simplified version of SkScaledSampler. Unlike the sampler, this object does no sampling. > TODO: Implement other swizzles. > > BUG=skia:3257 > > Committed: https://skia.googlesource.com/skia/+/ca358852b4fed656d11107b2aaf28318a4518b49 TBR=reed@google.com,djsollen@google.com,msarett@google.com,mtklein@google.com NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia:3257 Review URL: https://codereview.chromium.org/972743003
* Add SkCodec, including PNG implementation.Gravatar scroggo2015-03-02
DM: Add a flag to use SkCodec instead of SkImageDecoder. SkCodec: Base class for codecs, allowing creation from an SkStream or an SkData. An SkCodec, on creation, knows properties of the data like its width and height. Further calls can be used to generate the image. TODO: Add scanline iterator SkPngCodec: New decoder for png. Wraps libpng. The code has been repurposed from SkImageDecoder_libpng. TODO: Handle other destination colortypes TODO: Substitute the transpose color TODO: Allow silencing warnings TODO: Use RGB instead of filler? TODO: sRGB SkSwizzler: Simplified version of SkScaledSampler. Unlike the sampler, this object does no sampling. TODO: Implement other swizzles. BUG=skia:3257 Review URL: https://codereview.chromium.org/930283002
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