aboutsummaryrefslogtreecommitdiffhomepage
path: root/src/codec/SkWebpCodec.cpp
Commit message (Collapse)AuthorAge
* Fix msan errors in webp decoderGravatar Matt Sarett2017-03-28
| | | | | | | | Bug: skia: Change-Id: I919a24fc61137c4a30160c97ad69fa4a2eadd031 Reviewed-on: https://skia-review.googlesource.com/10325 Reviewed-by: Matt Sarett <msarett@google.com> Commit-Queue: Matt Sarett <msarett@google.com>
* Add codec and color xform support for 565Gravatar Matt Sarett2017-03-28
| | | | | | | | Bug: skia: Change-Id: I23184acc4e17d38861d27ab81172048a24c400d2 Reviewed-on: https://skia-review.googlesource.com/10288 Reviewed-by: Mike Klein <mtklein@chromium.org> Commit-Queue: Matt Sarett <msarett@google.com>
* Add SkTransferFunctionBehavior flag: Use in codec and encoderGravatar Matt Sarett2017-03-24
| | | | | | | | | | | | | | This is a step towards removing the non-linear blending flag from SkColorSpace. The flag on SkColorSpace used to control the premul behavior - now it is controlled by this option. BUG=skia: Change-Id: Ia29bd8c2b0596a93c6aa14332dcd9bd39e388a90 Reviewed-on: https://skia-review.googlesource.com/10008 Reviewed-by: Mike Reed <reed@google.com> Reviewed-by: Leon Scroggins <scroggo@google.com> Commit-Queue: Matt Sarett <msarett@google.com>
* Reland "Respect canvas size and frame offset in webp decoder"Gravatar Matt Sarett2017-02-07
| | | | | | | | | | | | | | Original Change Reviewed At: https://skia-review.googlesource.com/c/7800 CQ_INCLUDE_TRYBOTS=skia.primary:Test-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Debug-MSAN BUG=skia:6185 Change-Id: I1a7732832d37920545c1775d7c7c65b43ed810f9 Reviewed-on: https://skia-review.googlesource.com/8157 Reviewed-by: Matt Sarett <msarett@google.com> Commit-Queue: Matt Sarett <msarett@google.com>
* SkColorSpace: remove named API, add gamut APIGravatar Matt Sarett2017-02-07
| | | | | | | | | | | Reland from: https://skia-review.googlesource.com/c/8021/ BUG=skia: Change-Id: I18985f130587b15fccbc86b76b2bb5c49ba5ba8a Reviewed-on: https://skia-review.googlesource.com/8136 Reviewed-by: Matt Sarett <msarett@google.com> Commit-Queue: Matt Sarett <msarett@google.com>
* Revert "SkColorSpace: remove named API, add gamut API"Gravatar Matt Sarett2017-02-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit ecaaf6f1c156e5690200322fc2636380c1f63dd8. Reason for revert: Breaks everything Original change's description: > SkColorSpace: remove named API, add gamut API > > BUG=skia: > > Change-Id: I01c5e1874c9a034febc64e25b3aaafb5050393a6 > Reviewed-on: https://skia-review.googlesource.com/8021 > Reviewed-by: Brian Osman <brianosman@google.com> > Reviewed-by: Mike Reed <reed@google.com> > Commit-Queue: Matt Sarett <msarett@google.com> > TBR=msarett@google.com,brianosman@google.com,reed@google.com,reviews@skia.org NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Change-Id: Ief5a0a4eeabe75a21f7512e23fc15309151066c4 Reviewed-on: https://skia-review.googlesource.com/8127 Commit-Queue: Matt Sarett <msarett@google.com> Reviewed-by: Matt Sarett <msarett@google.com>
* SkColorSpace: remove named API, add gamut APIGravatar Matt Sarett2017-02-07
| | | | | | | | | | BUG=skia: Change-Id: I01c5e1874c9a034febc64e25b3aaafb5050393a6 Reviewed-on: https://skia-review.googlesource.com/8021 Reviewed-by: Brian Osman <brianosman@google.com> Reviewed-by: Mike Reed <reed@google.com> Commit-Queue: Matt Sarett <msarett@google.com>
* Revert "Reland "Respect canvas size and frame offset in webp decoder""Gravatar Matt Sarett2017-02-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 604971e39a20392fd4c74a56bcdc187311cf86dc. Reason for revert: Strange vk failures Original change's description: > Reland "Respect canvas size and frame offset in webp decoder" > > Original Change Reviewed At: > https://skia-review.googlesource.com/c/7800 > > CQ_INCLUDE_TRYBOTS=skia.primary:Test-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Debug-MSAN > > BUG=skia:6185 > > Change-Id: I92baa9070e15ef3c62dd347c08c906c2715dda10 > Reviewed-on: https://skia-review.googlesource.com/8050 > Reviewed-by: Matt Sarett <msarett@google.com> > Commit-Queue: Matt Sarett <msarett@google.com> > TBR=msarett@google.com,reviews@skia.org NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia:6185 CQ_INCLUDE_TRYBOTS=skia.primary:Test-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Debug-MSAN Change-Id: Ice93b62c55ea13fce83140567be16225ff0e2fdb Reviewed-on: https://skia-review.googlesource.com/8123 Commit-Queue: Matt Sarett <msarett@google.com> Reviewed-by: Matt Sarett <msarett@google.com>
* Reland "Respect canvas size and frame offset in webp decoder"Gravatar Matt Sarett2017-02-06
| | | | | | | | | | | | | | Original Change Reviewed At: https://skia-review.googlesource.com/c/7800 CQ_INCLUDE_TRYBOTS=skia.primary:Test-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Debug-MSAN BUG=skia:6185 Change-Id: I92baa9070e15ef3c62dd347c08c906c2715dda10 Reviewed-on: https://skia-review.googlesource.com/8050 Reviewed-by: Matt Sarett <msarett@google.com> Commit-Queue: Matt Sarett <msarett@google.com>
* Revert "Respect canvas size and frame offset in webp decoder"Gravatar Robert Phillips2017-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 0f33970c8d950a68b7d83cc626ac0500953d6b15. Reason for revert: msan complaint Original change's description: > Respect canvas size and frame offset in webp decoder > > BUG=skia:6185 > > Change-Id: Id543cb689a5e33b800ebbc18f4a234e78a4c4298 > Reviewed-on: https://skia-review.googlesource.com/7800 > Commit-Queue: Matt Sarett <msarett@google.com> > Reviewed-by: Leon Scroggins <scroggo@google.com> > TBR=borenet@google.com,msarett@google.com,scroggo@google.com,reviews@skia.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=skia:6185 Change-Id: Ie01dc7d7ebfebe36a235335d0d8cb28bccb2ecff Reviewed-on: https://skia-review.googlesource.com/8046 Commit-Queue: Robert Phillips <robertphillips@google.com> Reviewed-by: Robert Phillips <robertphillips@google.com>
* Respect canvas size and frame offset in webp decoderGravatar Matt Sarett2017-02-03
| | | | | | | | | BUG=skia:6185 Change-Id: Id543cb689a5e33b800ebbc18f4a234e78a4c4298 Reviewed-on: https://skia-review.googlesource.com/7800 Commit-Queue: Matt Sarett <msarett@google.com> Reviewed-by: Leon Scroggins <scroggo@google.com>
* Updated the get_images_from_skps tool to check for ICC profile supportGravatar raftias2016-12-12
| | | | | | | | | | | | | | | | | | | Tool will now check for and output all unsuccessfully parsed ICC profiles in input sksp images if --testColorCorrectionSupported is set as a flag. All ICC-aware codecs had to be slightly modified in order to expose this information, as the logic for accessing the ICC profiles is all within the codecs. If --writeFailedImages is set, it will also output all images whoses ICC profiles were not supported. TBR=reed@google.com BUG=skia: Change-Id: Ic310d82bdebf92f8d3bc0ad3dcc688136b6de377 Reviewed-on: https://skia-review.googlesource.com/5355 Reviewed-by: Leon Scroggins <scroggo@google.com> Reviewed-by: Matt Sarett <msarett@google.com> Commit-Queue: Robert Aftias <raftias@google.com>
* Remove SkAutoTDelete.Gravatar Ben Wagner2016-11-03
| | | | | | | | | Replace with std::unique_ptr. Change-Id: I5806cfbb30515fcb20e5e66ce13fb5f3b8728176 Reviewed-on: https://skia-review.googlesource.com/4381 Commit-Queue: Ben Wagner <bungeman@google.com> Reviewed-by: Mike Klein <mtklein@chromium.org>
* Rename all color space factories from New* to Make*Gravatar Brian Osman2016-10-24
| | | | | | | | | | | | | | | | | | | | | Matches our naming convention for all other types - factories that return sk_sp (or any type that intelligently manages its own lifetime) are named Make. Previous factories are still around, assuming SK_SUPPORT_LEGACY_COLOR_SPACE_FACTORIES is defined. Enable that define for Android, etc. See also: https://codereview.chromium.org/2442053002/ BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3822 Change-Id: Iaea9376490736b494e8ffc820831f052bbe1478d Reviewed-on: https://skia-review.googlesource.com/3822 Commit-Queue: Brian Osman <brianosman@google.com> Reviewed-by: Mike Reed <reed@google.com>
* Safely handle unsupported color xforms in SkCodecGravatar Matt Sarett2016-10-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | (1) The transformation code *should* support any src SkColorSpace that we successfully parse. This is agreed upon internally and by clients. The fact that we currently don't is just a bug... (2) We cannot and will not support all SkColorSpaces as dsts. So if we fail to make a SkColorSpaceXform, we should assume that it was caused by a bad dst color space. The correct response in this case is to return kInvalidConversion. I've rewritten the CL to do this. The fact that weird src spaces will sometimes trigger a kInvalidConversion is just a bug that is being actively worked on. TBR=reed@google.com BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3661 Change-Id: Iac2b45120507ec71b1b3d555c61931f7348dad9e Reviewed-on: https://skia-review.googlesource.com/3661 Commit-Queue: Matt Sarett <msarett@google.com> Reviewed-by: Leon Scroggins <scroggo@google.com> Reviewed-by: Robert Aftias <raftias@google.com>
* Add SkColorSpaceXform to the public APIGravatar msarett2016-10-11
| | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2390263002 Review-Url: https://codereview.chromium.org/2390263002
* Add BGRA as input format to SkColorSpaceXformGravatar msarett2016-09-22
| | | | | | | | | | This is immediately useful for webp and I think it's a fair guess that BGRA src formats are not uncommon. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2353363008 Review-Url: https://codereview.chromium.org/2353363008
* Make SkColorSpaceXform::New() take bare ptrsGravatar msarett2016-09-22
| | | | | | | | | | There's no need to take sk_sp if we're not going to ref the ptr. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2360863003 Review-Url: https://codereview.chromium.org/2360863003
* Support Float32 output from SkColorSpaceXformGravatar msarett2016-09-16
| | | | | | | | | | | | | | | * Adds Float32 support to SkColorSpaceXform * Changes API to allows clients to ask for F32, updates clients to new API * Adds Sk4f_load4 and Sk4f_store4 to SkNx * Make use of new xform in SkGr.cpp BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2339233003 CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Committed: https://skia.googlesource.com/skia/+/43d6651111374b5d1e4ddd9030dcf079b448ec47 Review-Url: https://codereview.chromium.org/2339233003
* Revert of Support Float32 output from SkColorSpaceXform (patchset #7 ↵Gravatar msarett2016-09-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | id:140001 of https://codereview.chromium.org/2339233003/ ) Reason for revert: Hitting an assert Original issue's description: > Support Float32 output from SkColorSpaceXform > > * Adds Float32 support to SkColorSpaceXform > * Changes API to allows clients to ask for F32, updates clients to > new API > * Adds Sk4f_load4 and Sk4f_store4 to SkNx > * Make use of new xform in SkGr.cpp > > BUG=skia: > GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2339233003 > CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot > > Committed: https://skia.googlesource.com/skia/+/43d6651111374b5d1e4ddd9030dcf079b448ec47 TBR=brianosman@google.com,mtklein@google.com,scroggo@google.com,mtklein@chromium.org,bsalomon@google.com # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Review-Url: https://codereview.chromium.org/2347473007
* Support Float32 output from SkColorSpaceXformGravatar msarett2016-09-16
| | | | | | | | | | | | | | * Adds Float32 support to SkColorSpaceXform * Changes API to allows clients to ask for F32, updates clients to new API * Adds Sk4f_load4 and Sk4f_store4 to SkNx * Make use of new xform in SkGr.cpp BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2339233003 CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2339233003
* Checking for valid colorType, alphaType, colorSpace in SkCodecGravatar msarett2016-09-08
| | | | | | | | | | | | | | | | | * Refactor to share code between SkPngCodec and SkWebpCodec * Didn't end up sharing with SkJpegCodec but did refactor that code a bit * Disallow conversions to F16 with non-linear color spaces * Fail to decode if we fail to create a SkColorSpaceXform (should be an assert soon). We used to fallback on a legacy decode if we failed to create the transform. * A bunch of name changes BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2319293003 Committed: https://skia.googlesource.com/skia/+/7a9900d6d34e437bb24beb5524a1f6488ae138c9 Review-Url: https://codereview.chromium.org/2319293003
* Revert of Checking for valid colorType, alphaType, colorSpace in SkCodec ↵Gravatar msarett2016-09-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (patchset #2 id:100001 of https://codereview.chromium.org/2319293003/ ) Reason for revert: Broken perf bots Original issue's description: > Checking for valid colorType, alphaType, colorSpace in SkCodec > > * Refactor to share code between SkPngCodec and SkWebpCodec > * Didn't end up sharing with SkJpegCodec but did refactor > that code a bit > * Disallow conversions to F16 with non-linear color spaces > * Fail to decode if we fail to create a SkColorSpaceXform > (should be an assert soon). We used to fallback on a > legacy decode if we failed to create the transform. > * A bunch of name changes > > BUG=skia: > GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2319293003 > > Committed: https://skia.googlesource.com/skia/+/7a9900d6d34e437bb24beb5524a1f6488ae138c9 TBR=scroggo@google.com,brianosman@google.com # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Review-Url: https://codereview.chromium.org/2328663002
* Checking for valid colorType, alphaType, colorSpace in SkCodecGravatar msarett2016-09-08
| | | | | | | | | | | | | | | | * Refactor to share code between SkPngCodec and SkWebpCodec * Didn't end up sharing with SkJpegCodec but did refactor that code a bit * Disallow conversions to F16 with non-linear color spaces * Fail to decode if we fail to create a SkColorSpaceXform (should be an assert soon). We used to fallback on a legacy decode if we failed to create the transform. * A bunch of name changes BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2319293003 Review-Url: https://codereview.chromium.org/2319293003
* Add color xform support to SkWebpCodecGravatar msarett2016-09-08
| | | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2294993002 Committed: https://skia.googlesource.com/skia/+/828ed1777da74692d0c8a5834017929f5aedcc6b Review-Url: https://codereview.chromium.org/2294993002
* Revert of Add color xform support to SkWebpCodec (patchset #2 id:80001 of ↵Gravatar msarett2016-09-07
| | | | | | | | | | | | | | | | | | | | | | | | https://codereview.chromium.org/2294993002/ ) Reason for revert: Windows bots hate it when I upload new images. Original issue's description: > Add color xform support to SkWebpCodec > > BUG=skia: > GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2294993002 > > Committed: https://skia.googlesource.com/skia/+/828ed1777da74692d0c8a5834017929f5aedcc6b TBR=scroggo@google.com # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Review-Url: https://codereview.chromium.org/2318253004
* Add color xform support to SkWebpCodecGravatar msarett2016-09-07
| | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2294993002 Review-Url: https://codereview.chromium.org/2294993002
* Use demux API in SkWebpCodecGravatar msarett2016-09-07
| | | | | | | | | | | | | | | * Necessary to read ICC profiles * Will be necessary to implement animation * Requires consolidated data with length Doesn't affect decode performance (thought I believe our performance tests only cover SkStreams with memory bases). BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2311793004 Review-Url: https://codereview.chromium.org/2311793004
* Parse ICC profiles from webpsGravatar msarett2016-08-24
| | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2269333002 Review-Url: https://codereview.chromium.org/2269333002
* Webp has_alpha is a hint onlyGravatar msarett2016-08-14
| | | | | | | | | | | | The has_alpha bit on webps is a hint only. We are correct to always assume that the image may have alpha. https://groups.google.com/a/webmproject.org/forum/#!msg/webp-discuss/2rFPKOzxuSM/uabYhmSNJAAJ TBR=scroggo@google.com BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2243153002 Review-Url: https://codereview.chromium.org/2243153002
* Remove SkEncodedInfo kUnknown_Color and kUnknown_Alpha from public APIGravatar msarett2016-04-25
| | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1918873002 Review URL: https://codereview.chromium.org/1918873002
* Add SkEncodedInfo to report properties of encoded image dataGravatar msarett2016-04-20
| | | | | | | | | | | | | | | | | | | All this does is build an SkEncodedInfo for each codec, and then convert it to an SkImageInfo. In future steps I intend to: (1) Use SkEncodedInfo in place of SrcConfig in SkSwizzler. (2) Support more conversions in SkSwizzler (non-native BGRA/RGBA, 16-bit components, float, fixed point) (3) Investigate optimizing conversions from encoded data to linear color spaces. BUG=skia:4133 GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1820073002 Committed: https://skia.googlesource.com/skia/+/f682d9ad70d690a343bc15e26ef321d86770be41 Review URL: https://codereview.chromium.org/1820073002
* Revert of Add SkEncodedInfo to report properties of encoded image data ↵Gravatar robertphillips2016-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (patchset #6 id:200001 of https://codereview.chromium.org/1820073002/ ) Reason for revert: Lots of bots failing Original issue's description: > Add SkEncodedInfo to report properties of encoded image data > > All this does is build an SkEncodedInfo for each codec, and > then convert it to an SkImageInfo. > > In future steps I intend to: > (1) Use SkEncodedInfo in place of SrcConfig in SkSwizzler. > (2) Support more conversions in SkSwizzler (non-native > BGRA/RGBA, 16-bit components, float, fixed point) > (3) Investigate optimizing conversions from encoded data > to linear color spaces. > > BUG=skia:4133 > GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1820073002 > > Committed: https://skia.googlesource.com/skia/+/f682d9ad70d690a343bc15e26ef321d86770be41 TBR=scroggo@google.com,reed@google.com,msarett@google.com # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia:4133 Review URL: https://codereview.chromium.org/1895383002
* Add SkEncodedInfo to report properties of encoded image dataGravatar msarett2016-04-18
| | | | | | | | | | | | | | | | | All this does is build an SkEncodedInfo for each codec, and then convert it to an SkImageInfo. In future steps I intend to: (1) Use SkEncodedInfo in place of SrcConfig in SkSwizzler. (2) Support more conversions in SkSwizzler (non-native BGRA/RGBA, 16-bit components, float, fixed point) (3) Investigate optimizing conversions from encoded data to linear color spaces. BUG=skia:4133 GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1820073002 Review URL: https://codereview.chromium.org/1820073002
* Mark webps as sRGBGravatar msarett2016-04-06
| | | | | | | | | This may cause some diffs in Gold. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1838603002 Review URL: https://codereview.chromium.org/1838603002
* detach -> releaseGravatar mtklein2016-03-16
| | | | | | | | | | | | | The C++ standard library uses the name "release" for the operation we call "detach". Rewriting each "detach(" to "release(" brings us a step closer to using standard library types directly (e.g. std::unique_ptr instead of SkAutoTDelete). This was a fairly blind transformation. There may have been unintentional conversions in here, but it's probably for the best to have everything uniformly say "release". BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1809733002 Review URL: https://codereview.chromium.org/1809733002
* Switch SkAutoMalloc to SkAutoTMalloc to avoid castGravatar scroggo2015-12-10
| | | | | | | | | | | | Make SkAutoTMalloc's interface look more like SkAutoMalloc: - add free(), which does what you expect - make reset() return a pointer fPtr No public API changes (SkAutoTMalloc is in include/private) BUG=skia:2148 Review URL: https://codereview.chromium.org/1516833003
* Make SkCodec support peek() and read()Gravatar scroggo2015-12-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Update SkCodec's dox to point out that some of the data must be read twice in order to decode - Add an accessor that reports how much is needed for reading twice - Make SkCodec default to use peek() If an input stream supports peek()ing, peek() instead of reading. This way the stream need not implement rewind() - Make SkCodec use read() + rewind() as a backup So that streams without peek() implemented can still function properly (assuming they can rewind). - read everything we may need to determine the format once In SkCodec::NewFromStream, peek()/read() 14 bytes, which is enough to read all of the types we support. Pass the buffer to each subtype, which will have enough info to determine whether it is the right type. This simplifies the code and results in less reading and rewinding. - NOTE: SkWbmpCodec needs the following number of bytes for the header + 1 (type) + 1 (reserved) + 3 (width - bytes needed to support up to 0xFFFF) + 3 (height - bytes needed to support up to 0xFFFF) = 8 - in SkWebpCodec, support using read + rewind as a backup if peek does not work. A change in Android will add peek() to JavaInputStreamAdapter. BUG=skia:3257 Review URL: https://codereview.chromium.org/1472123002
* Add subsetting to SkScanlineDecoderGravatar msarett2015-10-13
| | | | | | | | | | | | This CL allows the SkScanlineDecoder to decode partial scanlines. This is a first step in efficiently implementing subsetting in SkScaledCodec. BUG=skia:4209 Review URL: https://codereview.chromium.org/1390213002
* Fill incomplete images in SkCodec parent classGravatar msarett2015-10-09
| | | | | | | | | | | | | | | | | | | | | | | | | Rather than implementing some sort of "fill" in every SkCodec subclass for incomplete images, let's make the parent class handle this situation. This includes an API change to SkCodec.h SkCodec::getScanlines() now returns the number of lines it read successfully, rather than an SkCodec::Result enum. getScanlines() most often fails on an incomplete input, in which case it is useful to know how many lines were successfully decoded - this provides more information than kIncomplete vs kSuccess. We do lose information when the API is used improperly, as we are no longer able to return kInvalidParameter or kScanlineNotStarted. Known Issues: Does not work for incomplete fFrameIsSubset gifs. Does not work for incomplete icos. BUG=skia: Review URL: https://codereview.chromium.org/1332053002
* Move all knowledge of X sampling into SkScaledCodecGravatar scroggo2015-10-02
| | | | | | | | | | | | | | | | | | | | | | | Prior to this CL, each SkCodec subclass that allows sampling does an extra check in onStartScanlineDecode to determine whether the X dimension is supported for sampling. Remove this check, and provide a way for SkScaledCodec to directly access the SkSwizzler, and update it to do sampling. This way, the SkCodec knows nothing of sampling, but we can still save the extra step of sampling afterwards. FIXME: SkBmpRLECodec still calls SkScaledCodec::DimensionsSupported. It seems like it could directly support sampling, rather than dealing with SkScaledCodec (partially). Add a new base class for SkSwizzler. It allows updating the swizzler after it was created, which is done by SkScaledCodec. Modify SkSwizzler's constructor/factory function to stop taking any info about sampling, assume the sample size is one, and move modifying that into a virtual function overridden from the base class. BUG=skia:4284 Review URL: https://codereview.chromium.org/1372973002
* Call rewindIfNeeded in SkCodecGravatar scroggo2015-09-30
| | | | | | | | | | Rather than calling it in each subclass, call it once in the base class. Call it first, since other steps may modify internal structures which would be replaced by a call to onRewind. BUG=skia:4284 Review URL: https://codereview.chromium.org/1381483002
* Style Change: NULL->nullptrGravatar halcanary2015-08-27
| | | | | | DOCS_PREVIEW= https://skia.org/?cl=1316233002 Review URL: https://codereview.chromium.org/1316233002
* Style Change: SkNEW->new; SkDELETE->deleteGravatar halcanary2015-08-26
| | | | | | DOCS_PREVIEW= https://skia.org/?cl=1316123003 Review URL: https://codereview.chromium.org/1316123003
* Support more swizzles to 565 in SkCodecGravatar scroggo2015-08-14
| | | | | | | | | | | | | | | | | | | | | | | Add more swizzling functions for swizzling to 565. Much of this code was revived from crrev.com/1055743003 (for BMP). Also added swizzling functions for WBMP. Consolidate the static function conversion_possible. In SkCodec::getPixels, check that the alphatype corresponds to the colorType. This prevents requesting 565 + non-opaque. In SkIcoCodec, report that the image is unpremul (instead of whatever the largest embedded codec thinks), but modify the requested info to have the alpha type expected/required by the embedded codec. Add tests for decoding to 565. BUG=skia:3257 BUG=skia:3683 Review URL: https://codereview.chromium.org/1277213002
* Consolidate SkCodec functions for handling rewindGravatar scroggo2015-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | Previously, many of our codec implementations followed the same pattern (often in a function named handleRewind): switch (this->rewindIfNeeded()) { case CouldNotRewind: return CouldNotRewind; case NoRewindNecessary: // keep going break; case Rewound: <re-read header etc> break; } In this CL, remove the enum, and put the piece that happens in the Rewound case into a virtual function, onRewind. rewindIfNeeded now contains the common pieces from various functions named handleRewind. In SkBmpCodec, add a function that returns whether the BMP is in ICO, so it can have a common implementation for onRewind. BUG=skia:3257 Review URL: https://codereview.chromium.org/1288483002
* Let SkWebpCodec decode to 565Gravatar scroggo2015-08-06
| | | | | | BUG=skia:3257 Review URL: https://codereview.chromium.org/1277893002
* Add the ability to decode a subset to SkCodecGravatar scroggo2015-07-22
| | | | | | | | | | | | | | | | | | | | | | | | This allows codecs that support subsets natively (i.e. WEBP) to do so. Add a field on SkCodec::Options representing the subset. Add a method on SkCodec to find a valid subset which approximately matches a desired subset. Implement subset decodes in SkWebpCodec. Add a test in DM for decoding subsets. Notice that we only start on even boundaries. This is due to the way libwebp's API works. SkWEBPImageDecoder does not take this into account, which results in visual artifacts. FIXME: Subsets with scaling are not pixel identical, but close. (This may be fine, though - they are not perceptually different. We'll just need to mark another set of images in gold as valid, once https://skbug.com/4038 is fixed, so we can tests scaled webp without generating new images on each run.) Review URL: https://codereview.chromium.org/1240143002
* SkCodec no longer inherits from SkImageGenerator.Gravatar scroggo2015-07-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SkImageGenerator makes some assumptions that are not necessarily valid for SkCodec. For example, SkCodec does not assume that it can always be rewound. We also have an ongoing question of what an SkCodec should report as its default settings (i.e. the return from getInfo). It makes sense for an SkCodec to report that its pixels are unpremultiplied, if that is the case for the underlying data, but if a client of SkImageGenerator uses the default settings (as many do), they will receive unpremultiplied pixels which cannot (currently) be drawn with Skia. We may ultimately decide to revisit SkCodec reporting an SkImageInfo, but I have left it unchanged for now. Import features of SkImageGenerator used by SkCodec into SkCodec. I have left SkImageGenerator unchanged for now, but it no longer needs Result or Options. This will require changes to Chromium. Manually handle the lifetime of fScanlineDecoder, so SkScanlineDecoder.h can include SkCodec.h (where Result is), and SkCodec.h does not need to include it (to delete fScanlineDecoder). In many places, make the following simple changes: - Now include SkScanlineDecoder.h, which is no longer included by SkCodec.h - Use the enums in SkCodec, rather than SkImageGenerator - Stop including SkImageGenerator.h where no longer needed Review URL: https://codereview.chromium.org/1220733013
* Prevent webp from producing 0 dimensional imagesGravatar msarett2015-06-19
| | | | | | BUG=skia: Review URL: https://codereview.chromium.org/1196643002
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-22 23:28:32 +0000