diff options
author | reed <reed@google.com> | 2014-08-21 07:59:51 -0700 |
---|---|---|
committer | Commit bot <commit-bot@chromium.org> | 2014-08-21 07:59:51 -0700 |
commit | 9fa60daad4d5f54c0dbe3dbcc7608a8f6d721187 (patch) | |
tree | 59cc3af7f1a48aec372c05ca29a2fbef703bceb8 /src/core/SkComposeShader.cpp | |
parent | 5d74806b478a884bd763aee7e3e33cff1c506e50 (diff) |
Simplify flattening to just write enough to call the factory/public-constructor for the class. We want to *not* rely on private constructors, and not rely on calling through the inheritance hierarchy for either flattening or unflattening(CreateProc).
Refactoring pattern:
1. guard the existing constructor(readbuffer) with the legacy build-flag
2. If you are a instancable subclass, implement CreateProc(readbuffer) to create a new instances from the buffer params (or return NULL).
If you're a shader subclass
1. You must read/write the local matrix if your class accepts that in its factory/constructor, else ignore it.
R=robertphillips@google.com, mtklein@google.com, senorblanco@google.com, senorblanco@chromium.org, sugoi@chromium.org
Author: reed@google.com
Review URL: https://codereview.chromium.org/395603002
Diffstat (limited to 'src/core/SkComposeShader.cpp')
-rw-r--r-- | src/core/SkComposeShader.cpp | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/core/SkComposeShader.cpp b/src/core/SkComposeShader.cpp index f7de73b205..3c5b55aae6 100644 --- a/src/core/SkComposeShader.cpp +++ b/src/core/SkComposeShader.cpp @@ -26,8 +26,8 @@ SkComposeShader::SkComposeShader(SkShader* sA, SkShader* sB, SkXfermode* mode) { SkSafeRef(mode); } -SkComposeShader::SkComposeShader(SkReadBuffer& buffer) : - INHERITED(buffer) { +#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING +SkComposeShader::SkComposeShader(SkReadBuffer& buffer) : INHERITED(buffer) { fShaderA = buffer.readShader(); if (NULL == fShaderA) { fShaderA = SkNEW_ARGS(SkColorShader, ((SkColor)0)); @@ -38,6 +38,7 @@ SkComposeShader::SkComposeShader(SkReadBuffer& buffer) : } fMode = buffer.readXfermode(); } +#endif SkComposeShader::~SkComposeShader() { SkSafeUnref(fMode); @@ -66,8 +67,17 @@ private: }; #define SkAutoAlphaRestore(...) SK_REQUIRE_LOCAL_VAR(SkAutoAlphaRestore) +SkFlattenable* SkComposeShader::CreateProc(SkReadBuffer& buffer) { + SkAutoTUnref<SkShader> shaderA(buffer.readShader()); + SkAutoTUnref<SkShader> shaderB(buffer.readShader()); + SkAutoTUnref<SkXfermode> mode(buffer.readXfermode()); + if (!shaderA.get() || !shaderB.get()) { + return NULL; + } + return SkNEW_ARGS(SkComposeShader, (shaderA, shaderB, mode)); +} + void SkComposeShader::flatten(SkWriteBuffer& buffer) const { - this->INHERITED::flatten(buffer); buffer.writeFlattenable(fShaderA); buffer.writeFlattenable(fShaderB); buffer.writeFlattenable(fMode); |