Solo gp

include/gpu/GrBackendEffectFactory.h

Index: include/gpu/GrBackendEffectFactory.h
diff --git a/include/gpu/GrBackendEffectFactory.h b/include/gpu/GrBackendEffectFactory.h
deleted file mode 100644
index 936d632a7e6248496b159d950db906c61a7d70f0..0000000000000000000000000000000000000000
--- a/include/gpu/GrBackendEffectFactory.h
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * 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 GrBackendEffectFactory_DEFINED
-#define GrBackendEffectFactory_DEFINED
-
-#include "GrTypes.h"
-#include "SkTemplates.h"
-#include "SkThread.h"
-#include "SkTypes.h"
-#include "SkTArray.h"
-
-class GrGLEffect;
-class GrGLCaps;
-class GrEffect;
-
-/**
- * Used by effects to build their keys. It incorporates each per-effect key into a larger shader key.
- */
-class GrEffectKeyBuilder {
-public:
-    GrEffectKeyBuilder(SkTArray<unsigned char, true>* data) : fData(data), fCount(0) {
-        SkASSERT(0 == fData->count() % sizeof(uint32_t));
-    }
-
-    void add32(uint32_t v) {
-        ++fCount;
-        fData->push_back_n(4, reinterpret_cast<uint8_t*>(&v));
-    }
-
-    /** Inserts count uint32_ts into the key. The returned pointer is only valid until the next
-        add*() call. */
-    uint32_t* SK_WARN_UNUSED_RESULT add32n(int count) {
-        SkASSERT(count > 0);
-        fCount += count;
-        return reinterpret_cast<uint32_t*>(fData->push_back_n(4 * count));
-    }
-
-    size_t size() const { return sizeof(uint32_t) * fCount; }
-
-private:
-    SkTArray<uint8_t, true>* fData; // unowned ptr to the larger key.
-    int fCount;                     // number of uint32_ts added to fData by the effect.
-};
-
-/**
- * This class is used to pass the key that was created for a GrGLEffect back to it
- * when it emits code. It may allow the emit step to skip calculations that were
- * performed when computing the key.
- */
-class GrEffectKey {
-public:
-    GrEffectKey(const uint32_t* key, int count) : fKey(key), fCount(count) {
-        SkASSERT(0 == reinterpret_cast<intptr_t>(key) % sizeof(uint32_t));
-    }
-
-    /** Gets the uint32_t values that the effect inserted into the key. */
-    uint32_t get32(int index) const {
-        SkASSERT(index >=0 && index < fCount);
-        return fKey[index];
-    }
-
-    /** Gets the number of uint32_t values that the effect inserted into the key. */
-    int count32() const { return fCount; }
-
-private:
-    const uint32_t* fKey;           // unowned ptr into the larger key.
-    int             fCount;         // number of uint32_ts inserted by the effect into its key.
-};
-
-/**
- * Given a GrEffect of a particular type, creates the corresponding graphics-backend-specific
- * effect object. It also tracks equivalence of shaders generated via a key. The factory for an
- * effect is accessed via GrEffect::getFactory(). Each factory instance is assigned an ID at
- * construction. The ID of GrEffect::getFactory() is used as a type identifier. Thus, a GrEffect
- * subclass must always return the same object from getFactory() and that factory object must be
- * unique to the GrEffect subclass (and unique from any further derived subclasses).
- *
- * Rather than subclassing this class themselves, it is recommended that GrEffect authors use 
- * the templated subclass GrTBackendEffectFactory by writing their getFactory() method as:
- *
- * const GrBackendEffectFactory& MyEffect::getFactory() const {
- *     return GrTBackendEffectFactory<MyEffect>::getInstance();
- * }
- *
- * Using GrTBackendEffectFactory places a few constraints on the effect. See that class's comments.
- */
-class GrBackendEffectFactory : SkNoncopyable {
-public:
-    /** 
-     * Generates an effect's key. The key is based on the aspects of the GrEffect object's
-     * configuration that affect GLSL code generation. Two GrEffect instances that would cause
-     * this->createGLInstance()->emitCode() to produce different code must produce different keys.
-     */
-    virtual void getGLEffectKey(const GrEffect&, const GrGLCaps&, GrEffectKeyBuilder*) const = 0;
-
-    /**
-     * Creates a GrGLEffect instance that is used both to generate code for the GrEffect in a GLSL
-     * program and to manage updating uniforms for the program when it is used.
-     */
-    virtual GrGLEffect* createGLInstance(const GrEffect&) const = 0;
-
-    /**
-     * Produces a human-reable name for the effect.
-     */
-    virtual const char* name() const = 0;
-
-    /**
-     * A unique value for every instance of this factory. It is automatically incorporated into the
-     * effect's key. This allows keys generated by getGLEffectKey() to only be unique within a
-     * GrEffect subclass and not necessarily across subclasses.
-     */
-    uint32_t effectClassID() const { return fEffectClassID; }
-
-protected:
-    GrBackendEffectFactory() : fEffectClassID(GenID()) {}
-    virtual ~GrBackendEffectFactory() {}
-
-private:
-    enum {
-        kIllegalEffectClassID = 0,
-    };
-
-    static uint32_t GenID() {
-        // fCurrEffectClassID has been initialized to kIllegalEffectClassID. The
-        // atomic inc returns the old value not the incremented value. So we add
-        // 1 to the returned value.
-        uint32_t id = static_cast<uint32_t>(sk_atomic_inc(&fCurrEffectClassID)) + 1;
-        if (!id) {
-            SkFAIL("This should never wrap as it should only be called once for each GrEffect "
-                   "subclass.");
-        }
-        return id;
-    }
-
-    const uint32_t fEffectClassID;
-    static int32_t fCurrEffectClassID;
-};
-
-#endif