Commit Graph

37 Commits

Author SHA1 Message Date
Mike Reed
5dd202dc90 Revert "Revert "move GrColor.h to private, IWYU""
This reverts commit 63cc29304a.

Reason for revert: pdfium updated

Original change's description:
> Revert "move GrColor.h to private, IWYU"
> 
> This reverts commit e602f39581.
> 
> Reason for revert: Breaks PDFIUM
> 
> Original change's description:
> > move GrColor.h to private, IWYU
> > 
> > Bug: skia:
> > Change-Id: I0f0dabd7cc54cb7786f53bd6da0c0c012375037e
> > Reviewed-on: https://skia-review.googlesource.com/104160
> > Commit-Queue: Mike Reed <reed@google.com>
> > Reviewed-by: Brian Salomon <bsalomon@google.com>
> 
> TBR=bsalomon@google.com,reed@google.com
> 
> Change-Id: Ifaa50f8771fa1ca8bc152270efdb1fe27f7210f2
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: skia:
> Reviewed-on: https://skia-review.googlesource.com/104440
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Brian Salomon <bsalomon@google.com>

TBR=bsalomon@google.com,reed@google.com

Change-Id: I22fa5c0e0628b5c1f3b5f13879c7d1a4528cc93a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/104561
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2018-02-06 23:05:46 +00:00
Brian Salomon
63cc29304a Revert "move GrColor.h to private, IWYU"
This reverts commit e602f39581.

Reason for revert: Breaks PDFIUM

Original change's description:
> move GrColor.h to private, IWYU
> 
> Bug: skia:
> Change-Id: I0f0dabd7cc54cb7786f53bd6da0c0c012375037e
> Reviewed-on: https://skia-review.googlesource.com/104160
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>

TBR=bsalomon@google.com,reed@google.com

Change-Id: Ifaa50f8771fa1ca8bc152270efdb1fe27f7210f2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/104440
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
2018-02-06 18:33:26 +00:00
Mike Reed
e602f39581 move GrColor.h to private, IWYU
Bug: skia:
Change-Id: I0f0dabd7cc54cb7786f53bd6da0c0c012375037e
Reviewed-on: https://skia-review.googlesource.com/104160
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2018-02-06 15:42:15 +00:00
Ben Wagner
b4aab9ae6d Replace SkFAIL with SK_ABORT.
SkFAIL is a legacy macro which is just SK_ABORT. This CL mechanically
changes uses of SkFAIL to SK_ABORT in preparation for its removal. The
related sk_throw macro will be changed independently, due to needing to
actually clean up its users.

Change-Id: Id70b5c111a02d2458dc60c8933f444df27d9cebb
Reviewed-on: https://skia-review.googlesource.com/35284
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2017-08-16 15:37:54 +00:00
Cary Clark
2a475eae62 add drawString helper to canvas
Many tests and examples use drawText with
a guess of how long the text is in bytes,
or a call to strlen(). Add a helper to
SkCanvas to simplify these examples.

Add another helper for SkString.

R=reed@google.com

Change-Id: I0204a31e938f065606f08ee7cd9a6b36db791ee2
Reviewed-on: https://skia-review.googlesource.com/13642
Commit-Queue: Cary Clark <caryclark@google.com>
Reviewed-by: Cary Clark <caryclark@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Cary Clark <caryclark@skia.org>
2017-04-28 20:41:04 +00:00
Mike Klein
33d2055e59 GM: some header cleanup
gm.h includes sk_tool_utils.h but does not use it.

The bulk of this CL makes each gm that uses sk_tool_utils include it.

sk_tool_utils.h also provided SkRandom and SkTDArray,
so a couple GMs add those headers too.

Change-Id: Ieb2a7c542f0ca89c3223f744fc11b0ff37af36c1
Reviewed-on: https://skia-review.googlesource.com/10014
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Herb Derby <herb@google.com>
2017-03-22 18:11:49 +00:00
Mike Reed
3661bc9976 hide trivial helpers on canvas
BUG=skia:

Change-Id: I42d4ca92897bde5bd8e0575a0104b12b83134cef
Reviewed-on: https://skia-review.googlesource.com/8852
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2017-02-22 19:41:04 +00:00
Mike Reed
0e39f97cd7 Revert "Revert "make it illegal to include SkXfermode.h""
This reverts commit e9d1b299cc.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> Revert "make it illegal to include SkXfermode.h"
> 
> This reverts commit 07764cefbb.
> 
> Reason for revert: breaking google3
> 
> Original change's description:
> > make it illegal to include SkXfermode.h
> > 
> > BUG=skia:
> > 
> > GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=5133
> > 
> > Change-Id: I6e8596dcb17cd7e8efa67859bb682bf9bfcac4db
> > Reviewed-on: https://skia-review.googlesource.com/5133
> > Reviewed-by: Mike Reed <reed@google.com>
> > Commit-Queue: Mike Reed <reed@google.com>
> > 
> 
> TBR=reed@google.com,reviews@skia.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> 
> Change-Id: I136f9e533eb60633c49dffa19b5747d50b6d98a8
> Reviewed-on: https://skia-review.googlesource.com/5196
> Commit-Queue: Greg Daniel <egdaniel@google.com>
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> 

TBR=egdaniel@google.com,reviews@skia.org,reed@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I0b767ce778a4ade83c2f07d5ece486bb46d7712c
Reviewed-on: https://skia-review.googlesource.com/5223
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
2016-11-23 22:17:17 +00:00
Greg Daniel
e9d1b299cc Revert "make it illegal to include SkXfermode.h"
This reverts commit 07764cefbb.

Reason for revert: breaking google3

Original change's description:
> make it illegal to include SkXfermode.h
> 
> BUG=skia:
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=5133
> 
> Change-Id: I6e8596dcb17cd7e8efa67859bb682bf9bfcac4db
> Reviewed-on: https://skia-review.googlesource.com/5133
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Mike Reed <reed@google.com>
> 

TBR=reed@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I136f9e533eb60633c49dffa19b5747d50b6d98a8
Reviewed-on: https://skia-review.googlesource.com/5196
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
2016-11-23 16:47:49 +00:00
Mike Reed
07764cefbb make it illegal to include SkXfermode.h
BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=5133

Change-Id: I6e8596dcb17cd7e8efa67859bb682bf9bfcac4db
Reviewed-on: https://skia-review.googlesource.com/5133
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2016-11-23 15:35:45 +00:00
Mike Reed
d470673928 make SkXfermode.h go away
This is step one:
- make SkXfermode useless to public clients
- everything they should need is in SkBlendMode.h

Step two:
- remove SkXfermode.h entirely (since skia core will already be using SkXfermodePriv.h)

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4534

Change-Id: If2cea9f71df92430ed6644edb98dd306c5572cbc
Reviewed-on: https://skia-review.googlesource.com/4534
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2016-11-16 15:38:11 +00:00
reed
374772bd61 Revert[8] "replace SkXfermode obj with SkBlendMode enum in paints"
This reverts commit c245574ba3.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2396953002

TBR=

Review-Url: https://codereview.chromium.org/2396953002
2016-10-05 17:33:03 -07:00
Mike Reed
c245574ba3 Revert[7] "replace SkXfermode obj with SkBlendMode enum in paints"
This reverts commit Ib4a154cdd5f5d1dcac921ef50d53b79a2d6a1be8.

Reason for revert: new assert from 100K bot

Original change's description:
> Revert[6] "replace SkXfermode obj with SkBlendMode enum in paints"
> 
> - perform version check in CreateProc for XfermodeImageFilter and ArithmeticImageFilter
> This reverts commit 3ed485f424.
> 
> BUG=skia:
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2992
> 
> Change-Id: Ib4a154cdd5f5d1dcac921ef50d53b79a2d6a1be8
> Reviewed-on: https://skia-review.googlesource.com/2992
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Mike Reed <reed@google.com>
> 

TBR=reed@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I848e5a69c5cd67f2c14889f4f0a346652578c4ff
Reviewed-on: https://skia-review.googlesource.com/3023
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
2016-10-05 20:20:14 +00:00
Mike Reed
2b2fc7db4f Revert[6] "replace SkXfermode obj with SkBlendMode enum in paints"
- perform version check in CreateProc for XfermodeImageFilter and ArithmeticImageFilter
This reverts commit 3ed485f424.

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2992

Change-Id: Ib4a154cdd5f5d1dcac921ef50d53b79a2d6a1be8
Reviewed-on: https://skia-review.googlesource.com/2992
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2016-10-05 18:31:17 +00:00
Mike Reed
3ed485f424 Revert[5] "replace SkXfermode obj with SkBlendMode enum in paints"
This reverts commit I0fa5c58af428f3da8565465d1219a34ef8417d9a.

Reason for revert: failing to deserialize some of the 100K

Original change's description:
> Revert[4] "replace SkXfermode obj with SkBlendMode enum in paints"
> 
> This reverts commit 2cbcd12281.
> 
> BUG=skia:
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2924
> 
> Change-Id: I0fa5c58af428f3da8565465d1219a34ef8417d9a
> Reviewed-on: https://skia-review.googlesource.com/2924
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Mike Reed <reed@google.com>
> 

TBR=reed@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I1805a57eef5ebcac203da5989c8539345ecf806f
Reviewed-on: https://skia-review.googlesource.com/2962
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2016-10-04 21:35:56 +00:00
Mike Reed
1834242ec6 Revert[4] "replace SkXfermode obj with SkBlendMode enum in paints"
This reverts commit 2cbcd12281.

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2924

Change-Id: I0fa5c58af428f3da8565465d1219a34ef8417d9a
Reviewed-on: https://skia-review.googlesource.com/2924
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2016-10-04 20:09:34 +00:00
Mike Reed
2cbcd12281 Revert "Revert "Revert "replace SkXfermode obj with SkBlendMode enum in paints"""
This reverts commit I86875511a13497112827cbaed1dbd7639e9e3d10.

legacy (100K) skp failure

Original change's description:
> Revert "Revert "replace SkXfermode obj with SkBlendMode enum in paints""
> 
> This reverts commit ce02e71758.
> 
> BUG=skia:
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2878
> 
> Change-Id: I86875511a13497112827cbaed1dbd7639e9e3d10
> Reviewed-on: https://skia-review.googlesource.com/2878
> Reviewed-by: Matt Sarett <msarett@google.com>
> Commit-Queue: Mike Reed <reed@google.com>
> 

TBR=msarett@google.com,reed@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: Ife6f0cf3a22b3e8cf885a188f7f44e1ff62e06a5
Reviewed-on: https://skia-review.googlesource.com/2881
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2016-10-03 21:34:36 +00:00
Mike Reed
70cdb396eb Revert "Revert "replace SkXfermode obj with SkBlendMode enum in paints""
This reverts commit ce02e71758.

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2878

Change-Id: I86875511a13497112827cbaed1dbd7639e9e3d10
Reviewed-on: https://skia-review.googlesource.com/2878
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2016-10-03 20:02:20 +00:00
Mike Reed
ce02e71758 Revert "replace SkXfermode obj with SkBlendMode enum in paints"
This reverts commit I4fb489ba6b3f77b458f7e4a99f79c7ad10859135.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> replace SkXfermode obj with SkBlendMode enum in paints
> 
> BUG=skia:5814
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2714
> 
> Change-Id: I4fb489ba6b3f77b458f7e4a99f79c7ad10859135
> Reviewed-on: https://skia-review.googlesource.com/2714
> Reviewed-by: Florin Malita <fmalita@chromium.org>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Mike Reed <reed@google.com>
> 

TBR=bsalomon@google.com,fmalita@chromium.org,fmalita@google.com,reed@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I3e43f79ef5c1709929663fe63cc1f67cd78270b7
Reviewed-on: https://skia-review.googlesource.com/2871
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2016-10-03 18:03:29 +00:00
Mike Reed
0591897548 replace SkXfermode obj with SkBlendMode enum in paints
BUG=skia:5814

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2714

Change-Id: I4fb489ba6b3f77b458f7e4a99f79c7ad10859135
Reviewed-on: https://skia-review.googlesource.com/2714
Reviewed-by: Florin Malita <fmalita@chromium.org>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2016-10-03 17:17:10 +00:00
Mike Reed
403d154591 Revert "Revert "replace Arithmetic xfermode with imagefilter""
This reverts commit 10ff5bfa78.

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2680
TBR=
Change-Id: Iac2f4d48d227ff426ccf02b7eae280f382ad3580
Reviewed-on: https://skia-review.googlesource.com/2680
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2016-09-27 10:33:06 +00:00
Mike Reed
10ff5bfa78 Revert "replace Arithmetic xfermode with imagefilter"
This reverts commit Ia3f3b721854c516f3b7f8c44f71f40a8a2eeb9b4.

Reason for revert: need to guard the no-gpu codepath

Original issue's description:
> replace Arithmetic xfermode with imagefilter
> 
> chrome pre-cl: https://codereview.chromium.org/2369023002/
> 
> BUG=skia:
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2595
> 
> Change-Id: Ia3f3b721854c516f3b7f8c44f71f40a8a2eeb9b4
> Reviewed-on: https://skia-review.googlesource.com/2595
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Florin Malita <fmalita@chromium.org>
> Reviewed-by: Robert Phillips <robertphillips@google.com>
> 

TBR=robertphillips@google.com,fmalita@chromium.org,fmalita@google.com,reed@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I761799b594a0379c6bf356e6abc73552c3d19480
Reviewed-on: https://skia-review.googlesource.com/2661
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
2016-09-26 20:53:19 +00:00
Mike Reed
0530c88067 replace Arithmetic xfermode with imagefilter
chrome pre-cl: https://codereview.chromium.org/2369023002/

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2595

Change-Id: Ia3f3b721854c516f3b7f8c44f71f40a8a2eeb9b4
Reviewed-on: https://skia-review.googlesource.com/2595
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Reviewed-by: Robert Phillips <robertphillips@google.com>
2016-09-26 20:00:07 +00:00
mtklein
dbfd7ab108 Replace a lot of 'static const' with 'constexpr' or 'const'.
'static const' means, there must be at most one of these, and initialize it at
compile time if possible or runtime if necessary.  This leads to unexpected
code execution, and TSAN* will complain about races on the guard variables.

Generally 'constexpr' or 'const' are better choices.  Neither can cause races:
they're either intialized at compile time (constexpr) or intialized each time
independently (const).

This CL prefers constexpr where possible, and uses const where not.  It even
prefers constexpr over const where they don't make a difference... I want to have
lots of examples of constexpr for people to see and mimic.

The scoped-to-class static has nothing to do with any of this, and is not changed.

* Not yet on the bots, which use an older TSAN.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2300623005

Review-Url: https://codereview.chromium.org/2300623005
2016-09-01 11:24:54 -07:00
reed
cfb6bdf767 switch xfermodes over to sk_sp
waiting on https://codereview.chromium.org/1835163002/

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1832223002

Review URL: https://codereview.chromium.org/1832223002
2016-03-29 11:32:50 -07:00
halcanary
9d524f22bf Style bikeshed - remove extraneous whitespace
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1842753002

Review URL: https://codereview.chromium.org/1842753002
2016-03-29 09:03:53 -07:00
ethannicholas
3819d2d767 Added concave paths to aaxfermodes GM
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1534823004

Review URL: https://codereview.chromium.org/1534823004
2015-12-17 10:58:28 -08:00
halcanary
96fcdcc219 Style Change: NULL->nullptr
DOCS_PREVIEW= https://skia.org/?cl=1316233002

Review URL: https://codereview.chromium.org/1316233002
2015-08-27 07:41:16 -07:00
bungeman
d3ebb48320 IWYU: 'core' target, files starting A-C.
TBR=reed@google.com
Verbal lgtm, does not change API.

Committed: https://skia.googlesource.com/skia/+/7403d87db8e43d4c2b5b25ac22a0ebc22bd09d69

Review URL: https://codereview.chromium.org/1265033002
2015-08-05 13:57:49 -07:00
reed
fb8c1fcab1 Revert of IWYU: 'core' target, files starting A-C. (patchset #5 id:80001 of https://codereview.chromium.org/1265033002/ )
Reason for revert:
revert to unblock DEPS roll

../../chrome/browser/chromeos/display/overscan_calibrator.cc:43:10: error: variable has incomplete type 'SkPath'
  SkPath base_path;

Original issue's description:
> IWYU: 'core' target, files starting A-C.
>
> TBR=reed@google.com
> Verbal lgtm, does not change API.
>
> Committed: https://skia.googlesource.com/skia/+/7403d87db8e43d4c2b5b25ac22a0ebc22bd09d69

TBR=reed@google.com,mtklein@google.com,bungeman@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1273613002
2015-08-04 18:44:57 -07:00
bungeman
7403d87db8 IWYU: 'core' target, files starting A-C.
TBR=reed@google.com
Verbal lgtm, does not change API.

Review URL: https://codereview.chromium.org/1265033002
2015-08-04 14:56:53 -07:00
caryclark
1818acb6a4 rename portable_typeface_always to portable_typeface
TBR=reed@google.com

Review URL: https://codereview.chromium.org/1257773002
2015-07-24 12:09:25 -07:00
caryclark
d3c162200f turn on antialiased text
Aliased text didn't work with msaa16, so make it all
antialiased.

TBR=reed@google.com

Review URL: https://codereview.chromium.org/1169173006
2015-06-10 10:34:08 -07:00
caryclark
83ca628cb6 Today's gm include many differences caused by platform font implementations.
This experiment replaces the label used in the aaxfermodes gm with
aliased text generated from paths common to all platforms.

Since there is no way today to generate all dm output from trybots,
this will be checked in to confirm that this strategy provides simpler
output across devices.

This does not introduce a new public interface; instead, dm uses
a extern backdoor to install the SkTypeface::CreateFromName
handler.

Review URL: https://codereview.chromium.org/1163283002
2015-06-10 09:31:09 -07:00
cdalton
6fd158ea47 Implement Porter Duff XP with a blend table
Removes the runtime logic used by PorterDuffXferProcessor to decide
blend coeffs and shader outputs, and instead uses a compile-time
constant table of pre-selected blend formulas. Separates out the dst
read fallback into its own XP.

Introduces a new blend strategy for srcCoeff=0 that can apply coverage
with a reverse subtract blend equation instead of dual source
blending.

Adds new macros in GrBlend.h to analyze blend formulas both runtime.

Removes kSetCoverageDrawing_OptFlag and GrSimplifyBlend as they are no
longer used.

Adds a GM that verifies all xfermodes, including arithmetic, with the
color/coverage invariants used by Porter Duff.

Adds a unit test that verifies each Porter Duff formula with every
color/coverage invariant.

Major changes:

 * Uses a reverse subtract blend equation for coverage when srcCoeff=0
   (clear, dst-out [Sa=1], dst-in, modulate). Platforms that don't
   support dual source blending no longer require a dst copy for
   dst-in and modulate.

 * Sets BlendInfo::fWriteColor to false when the blend does not modify
   the dst. GrGLGpu will now use glColorMask instead of blending for
   these modes (dst, dst-in [Sa=1], modulate ignored for [Sc=1]).

 * Converts all SA blend coeffs to One for opaque inputs, and ISA to
   Zero if there is also no coverage. (We keep ISA around when there
   is coverage because we use it to tweak alpha for coverage.)

 * Abandons solid white optimizations for the sake of simplicity
   (screen was the only mode that previous had solid white opts).

Minor differences:

 * Inconsequential differences in opt flags (e.g. we now return
   kCanTweakAlphaForCoverage_OptFlag even when there is no coverage).

 * Src coeffs when the shader outputs 0.

 * IS2C vs IS2A when the secondary output is scalar.

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/9a70920db22b6309c671f8e5d519bb95570e4414

Review URL: https://codereview.chromium.org/1124373002
2015-05-27 15:08:33 -07:00
bungeman
c33db93d1b Revert of Implement Porter Duff XP with a blend table (patchset #12 id:220001 of https://codereview.chromium.org/1124373002/)
Reason for revert:
Blocking DEPS roll into Chromium. Crashing virtual/gpu/fast/canvas/canvas-composite-*.html tests with the assert

../../third_party/skia/src/gpu/gl/builders/GrGLFragmentShaderBuilder.cpp:281: failed assertion "k110_GrGLSLGeneration != gpu->glslGeneration() || fOutputs.empty()"

Original issue's description:
> Implement Porter Duff XP with a blend table
>
> Removes the runtime logic used by PorterDuffXferProcessor to decide
> blend coeffs and shader outputs, and instead uses a compile-time
> constant table of pre-selected blend formulas.
>
> Introduces a new blend strategy for srcCoeff=0 that can apply coverage
> with a reverse subtract blend equation instead of dual source
> blending.
>
> Adds new macros in GrBlend.h to analyze blend formulas both runtime.
>
> Removes kSetCoverageDrawing_OptFlag and GrSimplifyBlend as they are no
> longer used.
>
> Adds a GM that verifies all xfermodes, including arithmetic, with the
> color/coverage invariants used by Porter Duff.
>
> Adds a unit test that verifies each Porter Duff formula with every
> color/coverage invariant.
>
> Major changes:
>
>  * Uses a reverse subtract blend equation for coverage when srcCoeff=0
>    (clear, dst-out [Sa=1], dst-in, modulate). Platforms that don't
>    support dual source blending no longer require a dst copy for
>    dst-in and modulate.
>
>  * Sets BlendInfo::fWriteColor to false when the blend does not modify
>    the dst. GrGLGpu will now use glColorMask instead of blending for
>    these modes (dst, dst-in [Sa=1], modulate ignored for [Sc=1]).
>
>  * Converts all SA blend coeffs to One for opaque inputs, and ISA to
>    Zero if there is also no coverage. (We keep ISA around when there
>    is coverage because we use it to tweak alpha for coverage.)
>
>  * Abandons solid white optimizations for the sake of simplicity
>    (screen was the only mode that previous had solid white opts).
>
> Minor differences:
>
>  * Inconsequential differences in opt flags (e.g. we now return
>    kCanTweakAlphaForCoverage_OptFlag even when there is no coverage).
>
>  * Src coeffs when the shader outputs 0.
>
>  * IS2C vs IS2A when the secondary output is scalar.
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/9a70920db22b6309c671f8e5d519bb95570e4414

TBR=egdaniel@google.com,bsalomon@google.com,cdalton@nvidia.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1153993002
2015-05-22 17:55:26 -07:00
cdalton
9a70920db2 Implement Porter Duff XP with a blend table
Removes the runtime logic used by PorterDuffXferProcessor to decide
blend coeffs and shader outputs, and instead uses a compile-time
constant table of pre-selected blend formulas.

Introduces a new blend strategy for srcCoeff=0 that can apply coverage
with a reverse subtract blend equation instead of dual source
blending.

Adds new macros in GrBlend.h to analyze blend formulas both runtime.

Removes kSetCoverageDrawing_OptFlag and GrSimplifyBlend as they are no
longer used.

Adds a GM that verifies all xfermodes, including arithmetic, with the
color/coverage invariants used by Porter Duff.

Adds a unit test that verifies each Porter Duff formula with every
color/coverage invariant.

Major changes:

 * Uses a reverse subtract blend equation for coverage when srcCoeff=0
   (clear, dst-out [Sa=1], dst-in, modulate). Platforms that don't
   support dual source blending no longer require a dst copy for
   dst-in and modulate.

 * Sets BlendInfo::fWriteColor to false when the blend does not modify
   the dst. GrGLGpu will now use glColorMask instead of blending for
   these modes (dst, dst-in [Sa=1], modulate ignored for [Sc=1]).

 * Converts all SA blend coeffs to One for opaque inputs, and ISA to
   Zero if there is also no coverage. (We keep ISA around when there
   is coverage because we use it to tweak alpha for coverage.)

 * Abandons solid white optimizations for the sake of simplicity
   (screen was the only mode that previous had solid white opts).

Minor differences:

 * Inconsequential differences in opt flags (e.g. we now return
   kCanTweakAlphaForCoverage_OptFlag even when there is no coverage).

 * Src coeffs when the shader outputs 0.

 * IS2C vs IS2A when the secondary output is scalar.

BUG=skia:

Review URL: https://codereview.chromium.org/1124373002
2015-05-22 11:36:57 -07:00