History log of /external/skia/src/effects/SkLumaColorFilter.cpp
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0f10f7bf1fb43ca6346dc220a076773b1f19a367 13-Mar-2014 commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Allow toString capability to be toggled independent of developer mode.

This change is motivated by the desire to see the text information in the debugger when not in developer mode. It is structured so user's can disable it if the capability is not wanted.


Author: robertphillips@google.com

Review URL: https://codereview.chromium.org/197763008

git-svn-id: http://skia.googlecode.com/svn/trunk@13795 2bbb7eff-a529-9590-31e7-b0007b416f81
8b0e8ac5f582de80356019406e2975079bf0829d 30-Jan-2014 commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Refactor read and write buffers.

Eliminates SkFlattenable{Read,Write}Buffer, promoting SkOrdered{Read,Write}Buffer
a step each in the hierarchy.

What used to be this:

SkFlattenableWriteBuffer -> SkOrderedWriteBuffer
SkFlattenableReadBuffer -> SkOrderedReadBuffer
SkFlattenableReadBuffer -> SkValidatingReadBuffer

is now

SkReadBuffer -> SkValidatingReadBuffer

- code is simpler, names are less wordy
- the generic SkFlattenableFooBuffer code in SkPaint was incorrect; removed
- write buffers are completely devirtualized, important for record speed

This refactoring was mostly mechanical. You aren't going to find anything
interesting in files with less than 10 lines changed.

R=reed@google.com, scroggo@google.com, djsollen@google.com, mtklein@google.com

Author: mtklein@chromium.org

Review URL: https://codereview.chromium.org/134163010

git-svn-id: http://skia.googlecode.com/svn/trunk@13245 2bbb7eff-a529-9590-31e7-b0007b416f81
d494b09f554d470fc6411d0924879bbfb0cb0e95 10-Oct-2013 commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Align SkLumaColorFilter with the spec.

The spec requires the resulting RGB channels for LuminanceToAlpha to be
0 (and not just scaled by the luminance value</facepalm>):

| R' | | 0 0 0 0 0 | | R |
| G' | | 0 0 0 0 0 | | G |
| B' | = | 0 0 0 0 0 | * | B |
| A' | | 0.2125 0.7154 0.0721 0 0 | | A |
| 1 | | 0 0 0 0 1 | | 1 |


This doesn't affect luminance masking (which depends only on the
resulting alpha channel), but other color filter users may care
about all color components.

R=bsalomon@google.com, reed@google.com, robertphillips@google.com

Author: fmalita@chromium.org

Review URL: https://codereview.chromium.org/26467003

git-svn-id: http://skia.googlecode.com/svn/trunk@11713 2bbb7eff-a529-9590-31e7-b0007b416f81
824c346b6e0e114063c1a8ad4ba7c3a669ee2cff 10-Oct-2013 commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Express (GLSL expression, possibly known value) pairs as a class

Express (GLSL expression, possibly known value) pairs as a class
instead of two variables Introduces GrGLSLExpr<N> to encapsulate
the expression and possibly constant-folded value of the expression.

This simplifies passing of the expressions to functions.

Changes the shaders with following patterns:
{ // Stage 0: Linear Gradient
vec4 colorTemp = mix(uGradientStartColor_Stage0, uGradientEndColor_Stage0, clamp(vMatrixCoord_Stage0.x, 0.0, 1
colorTemp.rgb *= colorTemp.a;
- output_Stage0 = vec4((vColor) * (colorTemp));
+ output_Stage0 = (vColor * colorTemp);
+ }

Previously the vector cast was always added if constant folding was
effective, regardless of the term dimensions. Now the vector upcast is
not inserted in places where it is not needed, ie. when the binary
operator term is of the target dimension.

Also, some parentheses can be omitted. It is assumed that
GrGLSLExpr<N>("string") constructors construct a simple expression or
parenthesized expression.

Otherwise the shader code remains identical.

R=jvanverth@google.com, bsalomon@google.com, robertphillips@google.com

Author: kkinnunen@nvidia.com

Review URL: https://codereview.chromium.org/25048002

git-svn-id: http://skia.googlecode.com/svn/trunk@11690 2bbb7eff-a529-9590-31e7-b0007b416f81
6c1ee2d4e727357451c8a6fcf4a08e75890b5d6d 07-Oct-2013 commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Luminance-to-alpha color filter (SkLumaColorFilter).

Adding a color filter luma implementation. The plan is to convert
existing clients and then deprecate SkLumaXfermode.

R=bsalomon@google.com, reed@google.com, robertphillips@google.com

Author: fmalita@chromium.org

Review URL: https://codereview.chromium.org/25453004

git-svn-id: http://skia.googlecode.com/svn/trunk@11636 2bbb7eff-a529-9590-31e7-b0007b416f81