Move most of the transform logic into the primitive processors

src/gpu/gl/builders/GrGLLegacyNvprProgramBuilder.cpp

-/*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "GrGLLegacyNvprProgramBuilder.h"
-#include "../GrGLGpu.h"
-
-GrGLLegacyNvprProgramBuilder::GrGLLegacyNvprProgramBuilder(GrGLGpu* gpu,
-                                                           const GrOptDrawState& optState)
-    : INHERITED(gpu, optState)
-    , fTexCoordSetCnt(0) {
-}
-
-int GrGLLegacyNvprProgramBuilder::addTexCoordSets(int count) {
-    int firstFreeCoordSet = fTexCoordSetCnt;
-    fTexCoordSetCnt += count;
-    SkASSERT(gpu()->glCaps().maxFixedFunctionTextureCoords() >= fTexCoordSetCnt);
-    return firstFreeCoordSet;
-}
-
-void GrGLLegacyNvprProgramBuilder::emitTransforms(const GrPendingFragmentStage& processorStage,
-                                            GrGLProcessor::TransformedCoordsArray* outCoords,
-                                            GrGLInstalledFragProc* ifp) {
-    int numTransforms = processorStage.processor()->numTransforms();
-    int texCoordIndex = this->addTexCoordSets(numTransforms);
-
-    // Use the first uniform location as the texcoord index.  This may seem a bit hacky but it
-    // allows us to use one program effects object for all of our programs which really simplifies
-    // the code overall
-    ifp->fTransforms.push_back_n(1);
-    ifp->fTransforms[0].fHandle = GrGLInstalledFragProc::ShaderVarHandle(texCoordIndex);
-
-    SkString name;
-    for (int t = 0; t < numTransforms; ++t) {
-        GrSLType type = processorStage.isPerspectiveCoordTransform(t) ? kVec3f_GrSLType :
-                                                                        kVec2f_GrSLType;
-
-        name.printf("%s(gl_TexCoord[%i])", GrGLSLTypeString(type), texCoordIndex++);
-        SkNEW_APPEND_TO_TARRAY(outCoords, GrGLProcessor::TransformedCoords, (name, type));
-    }
-}
-
-GrGLProgram* GrGLLegacyNvprProgramBuilder::createProgram(GrGLuint programID) {
-    return SkNEW_ARGS(GrGLLegacyNvprProgram, (fGpu, fDesc, fUniformHandles, programID, fUniforms,
-            fGeometryProcessor, fXferProcessor, fFragmentProcessors.get(),
-                                              fTexCoordSetCnt));
-}