commit b1daa86732fe70aa4630c89d75ff0fd619d77c77
author wangyix <wangyix@google.com> Tue Aug 18 11:29:31 2015 -0700
committer Commit bot <commit-bot@chromium.org> Tue Aug 18 11:29:32 2015 -0700
tree 9ddc71e82c682c42968343cfdbea68038c2ca11b
parent 935d6cfaa78b6be75c9fcc596805f0f9b8da972e

When getGLInstance is called on a frag proc, the resulting GrGLFragmentProcessor will be the root of a tree of GrGLFragmentProcessors that mirrors the GrFragmentProcessor's tree. This allows setData() to be called recursively (removing the responsibility from compose shader) and allows gl instances direct access to their children gl instances so they can emit their code.

BUG=skia:4182

Review URL: https://codereview.chromium.org/1287023009

src/gpu/GrProcessor.cpp

diff --git a/src/gpu/GrProcessor.cpp b/src/gpu/GrProcessor.cpp
index 3090d0f..0eaab75 100644
--- a/src/gpu/GrProcessor.cpp
+++ b/src/gpu/GrProcessor.cpp
@@ -13,6 +13,7 @@
 #include "GrMemoryPool.h"
 #include "GrXferProcessor.h"
 #include "SkSpinlock.h"
+#include "gl/GrGLFragmentProcessor.h"
 
 #if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
 
@@ -156,6 +157,15 @@
     return true;
 }
 
+GrGLFragmentProcessor* GrFragmentProcessor::createGLInstance() const {
+    GrGLFragmentProcessor* glFragProc = this->onCreateGLInstance();
+    glFragProc->fChildProcessors.push_back_n(fChildProcessors.count());
+    for (int i = 0; i < fChildProcessors.count(); ++i) {
+        glFragProc->fChildProcessors[i] = fChildProcessors[i].processor()->createGLInstance();
+    }
+    return glFragProc;
+}
+
 void GrFragmentProcessor::addCoordTransform(const GrCoordTransform* transform) {
     fCoordTransforms.push_back(transform);
     fUsesLocalCoords = fUsesLocalCoords || transform->sourceCoords() == kLocal_GrCoordSet;