Remove GrGLProcessor and create GrGLSLTextureSampler class.

src/gpu/gl/GrGLProcessor.h

-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GrGLProcessor_DEFINED
-#define GrGLProcessor_DEFINED
-
-#include "GrProcessor.h"
-#include "GrShaderVar.h"
-#include "GrTextureAccess.h"
-#include "glsl/GrGLSLProgramDataManager.h"
-
-/** @file
-    This file contains specializations for OpenGL of the shader stages declared in
-    include/gpu/GrProcessor.h. Objects of type GrGLProcessor are responsible for emitting the
-    GLSL code that implements a GrProcessor and for uploading uniforms at draw time. If they don't
-    always emit the same GLSL code, they must have a function:
-        static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder*)
-    that is used to implement a program cache. When two GrProcessors produce the same key this means
-    that their GrGLProcessors would emit the same GLSL code.
-
-    The GrGLProcessor subclass must also have a constructor of the form:
-        ProcessorSubclass::ProcessorSubclass(const GrBackendProcessorFactory&, const GrProcessor&)
-
-    These objects are created by the factory object returned by the GrProcessor::getFactory().
-*/
-// TODO delete this and make TextureSampler its own thing
-class GrGLProcessor {
-public:
-    typedef GrGLSLProgramDataManager::UniformHandle UniformHandle;
-
-    /**
-     * Passed to GrGLProcessors so they can add transformed coordinates to their shader code.
-     */
-    typedef GrShaderVar TransformedCoords;
-    typedef SkTArray<GrShaderVar> TransformedCoordsArray;
-
-    /**
-     * Passed to GrGLProcessors so they can add texture reads to their shader code.
-     */
-    class TextureSampler {
-    public:
-        TextureSampler(UniformHandle uniform, const GrTextureAccess& access)
-            : fSamplerUniform(uniform)
-            , fConfigComponentMask(GrPixelConfigComponentMask(access.getTexture()->config())) {
-            SkASSERT(0 != fConfigComponentMask);
-            memcpy(fSwizzle, access.getSwizzle(), 5);
-        }
-
-        // bitfield of GrColorComponentFlags present in the texture's config.
-        uint32_t configComponentMask() const { return fConfigComponentMask; }
-        // this is .abcd
-        const char* swizzle() const { return fSwizzle; }
-
-    private:
-        UniformHandle fSamplerUniform;
-        uint32_t      fConfigComponentMask;
-        char          fSwizzle[5];
-
-        friend class GrGLShaderBuilder;
-    };
-
-    typedef SkTArray<TextureSampler> TextureSamplerArray;
-};
-
-#endif