Move GrSwizzle.h from include/private to src/gpu.

Change-Id: I2d992404f540c7f8a1cd5ff633148d92ec50d4fa
Reviewed-on: https://skia-review.googlesource.com/135860
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Auto-Submit: Brian Salomon <bsalomon@google.com>

1 files changed, 0 insertions, 139 deletions

diff --git a/include/private/GrSwizzle.h b/include/private/GrSwizzle.h
deleted file mode 100644
index da5d3e0f16..0000000000
--- a/include/private/GrSwizzle.h
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GrSwizzle_DEFINED
-#define GrSwizzle_DEFINED
-
-#include "GrColor.h"
-#include "SkRandom.h"
-
-/** Represents a rgba swizzle. It can be converted either into a string or a eight bit int.
-    Currently there is no way to specify an arbitrary swizzle, just some static swizzles and an
-    assignment operator. That could be relaxed. */
-class GrSwizzle {
-private:
-    char fSwiz[5];
-    uint8_t fKey;
-
-    static constexpr int CToI(char c) {
-        return ('r' == c) ? (GrColor_SHIFT_R / 8) :
-               ('g' == c) ? (GrColor_SHIFT_G / 8) :
-               ('b' == c) ? (GrColor_SHIFT_B / 8) :
-               ('a' == c) ? (GrColor_SHIFT_A / 8) : -1;
-    }
-
-    static constexpr char IToC(int idx) {
-        return (8 * idx) == GrColor_SHIFT_R ? 'r' :
-               (8 * idx) == GrColor_SHIFT_G ? 'g' :
-               (8 * idx) == GrColor_SHIFT_B ? 'b' :
-               (8 * idx) == GrColor_SHIFT_A ? 'a' : 'x';
-    }
-
-    constexpr GrSwizzle(const char c[4])
-        : fSwiz{c[0], c[1], c[2], c[3], 0}
-        , fKey((CToI(c[0]) << 0) | (CToI(c[1]) << 2) | (CToI(c[2]) << 4) | (CToI(c[3]) << 6)) {}
-
-    GR_STATIC_ASSERT(sizeof(char[4]) == sizeof(uint32_t));
-    uint32_t* asUIntPtr() { return reinterpret_cast<uint32_t*>(fSwiz); }
-    uint32_t asUInt() const {
-        uint32_t v;
-        memcpy(&v, fSwiz, 4);
-        return v;
-    }
-
-public:
-    GrSwizzle() { *this = RGBA(); }
-
-    GrSwizzle(const GrSwizzle& that) { *this = that; }
-
-    GrSwizzle& operator=(const GrSwizzle& that) {
-        memcpy(this, &that, sizeof(GrSwizzle));
-        return *this;
-    }
-
-    /** Recreates a GrSwizzle from the output of asKey() */
-    void setFromKey(uint8_t key) {
-        fKey = key;
-        for (int i = 0; i < 4; ++i) {
-            fSwiz[i] = IToC(key & 3);
-            key >>= 2;
-        }
-        SkASSERT(fSwiz[4] == 0);
-    }
-
-    bool operator==(const GrSwizzle& that) const { return this->asUInt() == that.asUInt(); }
-
-    bool operator!=(const GrSwizzle& that) const { return !(*this == that); }
-
-    /** Compact representation of the swizzle suitable for a key. */
-    uint8_t asKey() const { return fKey; }
-
-    /** 4 char null terminated string consisting only of chars 'r', 'g', 'b', 'a'. */
-    const char* c_str() const { return fSwiz; }
-
-    /** Applies this swizzle to the input color and returns the swizzled color. */
-    GrColor applyTo(GrColor color) const {
-        int idx;
-        uint32_t key = fKey;
-        // Index of the input color that should be mapped to output r.
-        idx = (key & 3);
-        uint32_t outR = (color >> idx * 8)  & 0xFF;
-        key >>= 2;
-        idx = (key & 3);
-        uint32_t outG = (color >> idx * 8)  & 0xFF;
-        key >>= 2;
-        idx = (key & 3);
-        uint32_t outB = (color >> idx * 8)  & 0xFF;
-        key >>= 2;
-        idx = (key & 3);
-        uint32_t outA = (color >> idx * 8)  & 0xFF;
-        return GrColorPackRGBA(outR, outG, outB, outA);
-    }
-
-    /** Applies this swizzle to the input color and returns the swizzled color. */
-    GrColor4f applyTo(const GrColor4f& color) const {
-        int idx;
-        uint32_t key = fKey;
-        // Index of the input color that should be mapped to output r.
-        idx = (key & 3);
-        float outR = color.fRGBA[idx];
-        key >>= 2;
-        idx = (key & 3);
-        float outG = color.fRGBA[idx];
-        key >>= 2;
-        idx = (key & 3);
-        float outB = color.fRGBA[idx];
-        key >>= 2;
-        idx = (key & 3);
-        float outA = color.fRGBA[idx];
-        return GrColor4f(outR, outG, outB, outA);
-    }
-
-    static GrSwizzle RGBA() { return GrSwizzle("rgba"); }
-    static GrSwizzle AAAA() { return GrSwizzle("aaaa"); }
-    static GrSwizzle RRRR() { return GrSwizzle("rrrr"); }
-    static GrSwizzle RRRA() { return GrSwizzle("rrra"); }
-    static GrSwizzle BGRA() { return GrSwizzle("bgra"); }
-
-    static GrSwizzle CreateRandom(SkRandom* random) {
-        switch (random->nextU() % 4) {
-            case 0:
-                return RGBA();
-            case 1:
-                return BGRA();
-            case 2:
-                return RRRR();
-            case 3:
-                return AAAA();
-            default:
-                SK_ABORT("Mod is broken?!?");
-                return RGBA();
-        }
-    }
-};
-
-#endif