Refactor separable varying location info to be stored in GrGLProgram subclass

src/gpu/gl/GrGLPathProgramDataManager.cpp

+ /*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "gl/GrGLPathProgramDataManager.h"
+#include "gl/GrGLPathRendering.h"
+#include "gl/GrGLUniformHandle.h"
+#include "gl/GrGLGpu.h"
+#include "SkMatrix.h"
+
+GrGLPathProgramDataManager::GrGLPathProgramDataManager(
+    GrGLGpu* gpu, GrGLuint programID, const SeparableVaryingInfoArray& separableVaryings)
+    : fGpu(gpu)
+    , fProgramID(programID) {
+    int count = separableVaryings.count();
+    fSeparableVaryings.push_back_n(count);
+    for (int i = 0; i < count; i++) {
+        SeparableVarying& separableVarying = fSeparableVaryings[i];
+        const SeparableVaryingInfo& builderSeparableVarying = separableVaryings[i];
+        SkASSERT(GrGLShaderVar::kNonArray == builderSeparableVarying.fVariable.getArrayCount() ||
+                 builderSeparableVarying.fVariable.getArrayCount() > 0);
+        SkDEBUGCODE(
+            separableVarying.fArrayCount = builderSeparableVarying.fVariable.getArrayCount();
+            separableVarying.fType = builderSeparableVarying.fVariable.getType();
+        );
+        separableVarying.fLocation = builderSeparableVarying.fLocation;
+    }
+}
+
+void GrGLPathProgramDataManager::setPathFragmentInputTransform(SeparableVaryingHandle u,
+                                                               int components,
+                                                               const SkMatrix& matrix) const {
+    const SeparableVarying& fragmentInput =
+            fSeparableVaryings[u.toProgramDataIndex()];
+
+    SkASSERT((components == 2 && fragmentInput.fType == kVec2f_GrSLType) ||
+              (components == 3 && fragmentInput.fType == kVec3f_GrSLType));
+
+    fGpu->glPathRendering()->setProgramPathFragmentInputTransform(fProgramID,
+                                                                  fragmentInput.fLocation,
+                                                                  GR_GL_OBJECT_LINEAR,
+                                                                  components,
+                                                                  matrix);
+}
+