remove 565 effects shaders

src/effects/gradients/SkRadialGradient.cpp

Index: src/effects/gradients/SkRadialGradient.cpp
diff --git a/src/effects/gradients/SkRadialGradient.cpp b/src/effects/gradients/SkRadialGradient.cpp
index d734aa056a4ad6e96455d2c7692c727cd447c706..7e7ac7a4069b0ed7b438b64f0ebfdac2df227807 100644
--- a/src/effects/gradients/SkRadialGradient.cpp
+++ b/src/effects/gradients/SkRadialGradient.cpp
@@ -7,46 +7,8 @@
  */
 
 #include "SkRadialGradient.h"
-#include "SkRadialGradient_Table.h"
 #include "SkNx.h"
 
-#define kSQRT_TABLE_BITS    11
-#define kSQRT_TABLE_SIZE    (1 << kSQRT_TABLE_BITS)
-
-static_assert(sizeof(gSqrt8Table) == kSQRT_TABLE_SIZE, "SqrtTableSizesMatch");
-
-#if 0
-
-#include <stdio.h>
-
-void SkRadialGradient_BuildTable() {
-    // build it 0..127 x 0..127, so we use 2^15 - 1 in the numerator for our "fixed" table
-
-    FILE* file = ::fopen("SkRadialGradient_Table.h", "w");
-    SkASSERT(file);
-    ::fprintf(file, "static const uint8_t gSqrt8Table[] = {\n");
-
-    for (int i = 0; i < kSQRT_TABLE_SIZE; i++) {
-        if ((i & 15) == 0) {
-            ::fprintf(file, "\t");
-        }
-
-        uint8_t value = SkToU8(SkFixedSqrt(i * SK_Fixed1 / kSQRT_TABLE_SIZE) >> 8);
-
-        ::fprintf(file, "0x%02X", value);
-        if (i < kSQRT_TABLE_SIZE-1) {
-            ::fprintf(file, ", ");
-        }
-        if ((i & 15) == 15) {
-            ::fprintf(file, "\n");
-        }
-    }
-    ::fprintf(file, "};\n");
-    ::fclose(file);
-}
-
-#endif
-
 namespace {
 
 // GCC doesn't like using static functions as template arguments.  So force these to be non-static.
@@ -67,83 +29,6 @@ SkMatrix rad_to_unit_matrix(const SkPoint& center, SkScalar radius) {
     return matrix;
 }
 
-typedef void (* RadialShade16Proc)(SkScalar sfx, SkScalar sdx,
-        SkScalar sfy, SkScalar sdy,
-        uint16_t* dstC, const uint16_t* cache,
-        int toggle, int count);
-
-void shadeSpan16_radial_clamp(SkScalar sfx, SkScalar sdx,
-        SkScalar sfy, SkScalar sdy,
-        uint16_t* SK_RESTRICT dstC, const uint16_t* SK_RESTRICT cache,
-        int toggle, int count) {
-    const uint8_t* SK_RESTRICT sqrt_table = gSqrt8Table;
-
-    /* knock these down so we can pin against +- 0x7FFF, which is an
-       immediate load, rather than 0xFFFF which is slower. This is a
-       compromise, since it reduces our precision, but that appears
-       to be visually OK. If we decide this is OK for all of our cases,
-       we could (it seems) put this scale-down into fDstToIndex,
-       to avoid having to do these extra shifts each time.
-    */
-    SkFixed fx = SkScalarToFixed(sfx) >> 1;
-    SkFixed dx = SkScalarToFixed(sdx) >> 1;
-    SkFixed fy = SkScalarToFixed(sfy) >> 1;
-    SkFixed dy = SkScalarToFixed(sdy) >> 1;
-    // might perform this check for the other modes,
-    // but the win will be a smaller % of the total
-    if (dy == 0) {
-        fy = SkTPin(fy, -0xFFFF >> 1, 0xFFFF >> 1);
-        fy *= fy;
-        do {
-            unsigned xx = SkTPin(fx, -0xFFFF >> 1, 0xFFFF >> 1);
-            unsigned fi = (xx * xx + fy) >> (14 + 16 - kSQRT_TABLE_BITS);
-            fi = SkFastMin32(fi, 0xFFFF >> (16 - kSQRT_TABLE_BITS));
-            fx += dx;
-            *dstC++ = cache[toggle +
-                            (sqrt_table[fi] >> SkGradientShaderBase::kSqrt16Shift)];
-            toggle = next_dither_toggle16(toggle);
-        } while (--count != 0);
-    } else {
-        do {
-            unsigned xx = SkTPin(fx, -0xFFFF >> 1, 0xFFFF >> 1);
-            unsigned fi = SkTPin(fy, -0xFFFF >> 1, 0xFFFF >> 1);
-            fi = (xx * xx + fi * fi) >> (14 + 16 - kSQRT_TABLE_BITS);
-            fi = SkFastMin32(fi, 0xFFFF >> (16 - kSQRT_TABLE_BITS));
-            fx += dx;
-            fy += dy;
-            *dstC++ = cache[toggle +
-                            (sqrt_table[fi] >> SkGradientShaderBase::kSqrt16Shift)];
-            toggle = next_dither_toggle16(toggle);
-        } while (--count != 0);
-    }
-}
-
-template <SkFixed (*TileProc)(SkFixed)>
-void shadeSpan16_radial(SkScalar fx, SkScalar dx, SkScalar fy, SkScalar dy,
-                        uint16_t* SK_RESTRICT dstC, const uint16_t* SK_RESTRICT cache,
-                        int toggle, int count) {
-    do {
-        const SkFixed dist = SkFloatToFixed(sk_float_sqrt(fx*fx + fy*fy));
-        const unsigned fi = TileProc(dist);
-        SkASSERT(fi <= 0xFFFF);
-        *dstC++ = cache[toggle + (fi >> SkGradientShaderBase::kCache16Shift)];
-        toggle = next_dither_toggle16(toggle);
-        fx += dx;
-        fy += dy;
-    } while (--count != 0);
-}
-
-void shadeSpan16_radial_mirror(SkScalar fx, SkScalar dx, SkScalar fy, SkScalar dy,
-                               uint16_t* SK_RESTRICT dstC, const uint16_t* SK_RESTRICT cache,
-                               int toggle, int count) {
-    shadeSpan16_radial<mirror_tileproc_nonstatic>(fx, dx, fy, dy, dstC, cache, toggle, count);
-}
-
-void shadeSpan16_radial_repeat(SkScalar fx, SkScalar dx, SkScalar fy, SkScalar dy,
-                               uint16_t* SK_RESTRICT dstC, const uint16_t* SK_RESTRICT cache,
-                               int toggle, int count) {
-    shadeSpan16_radial<repeat_tileproc_nonstatic>(fx, dx, fy, dy, dstC, cache, toggle, count);
-}
 
 }  // namespace
 
@@ -167,64 +52,6 @@ SkRadialGradient::RadialGradientContext::RadialGradientContext(
         const SkRadialGradient& shader, const ContextRec& rec)
     : INHERITED(shader, rec) {}
 
-void SkRadialGradient::RadialGradientContext::shadeSpan16(int x, int y, uint16_t* dstCParam,
-                                                          int count) {
-    SkASSERT(count > 0);
-
-    const SkRadialGradient& radialGradient = static_cast<const SkRadialGradient&>(fShader);
-
-    uint16_t* SK_RESTRICT dstC = dstCParam;
-
-    SkPoint             srcPt;
-    SkMatrix::MapXYProc dstProc = fDstToIndexProc;
-    TileProc            proc = radialGradient.fTileProc;
-    const uint16_t* SK_RESTRICT cache = fCache->getCache16();
-    int                 toggle = init_dither_toggle16(x, y);
-
-    if (fDstToIndexClass != kPerspective_MatrixClass) {
-        dstProc(fDstToIndex, SkIntToScalar(x) + SK_ScalarHalf,
-                             SkIntToScalar(y) + SK_ScalarHalf, &srcPt);
-
-        SkScalar sdx = fDstToIndex.getScaleX();
-        SkScalar sdy = fDstToIndex.getSkewY();
-
-        if (fDstToIndexClass == kFixedStepInX_MatrixClass) {
-            SkFixed storage[2];
-            (void)fDstToIndex.fixedStepInX(SkIntToScalar(y),
-                                           &storage[0], &storage[1]);
-            sdx = SkFixedToScalar(storage[0]);
-            sdy = SkFixedToScalar(storage[1]);
-        } else {
-            SkASSERT(fDstToIndexClass == kLinear_MatrixClass);
-        }
-
-        RadialShade16Proc shadeProc = shadeSpan16_radial_repeat;
-        if (SkShader::kClamp_TileMode == radialGradient.fTileMode) {
-            shadeProc = shadeSpan16_radial_clamp;
-        } else if (SkShader::kMirror_TileMode == radialGradient.fTileMode) {
-            shadeProc = shadeSpan16_radial_mirror;
-        } else {
-            SkASSERT(SkShader::kRepeat_TileMode == radialGradient.fTileMode);
-        }
-        (*shadeProc)(srcPt.fX, sdx, srcPt.fY, sdy, dstC,
-                     cache, toggle, count);
-    } else {    // perspective case
-        SkScalar dstX = SkIntToScalar(x);
-        SkScalar dstY = SkIntToScalar(y);
-        do {
-            dstProc(fDstToIndex, dstX, dstY, &srcPt);
-            unsigned fi = proc(SkScalarToFixed(srcPt.length()));
-            SkASSERT(fi <= 0xFFFF);
-
-            int index = fi >> (16 - kCache16Bits);
-            *dstC++ = cache[toggle + index];
-            toggle = next_dither_toggle16(toggle);
-
-            dstX += SK_Scalar1;
-        } while (--count != 0);
-    }
-}
-
 SkShader::GradientType SkRadialGradient::asAGradient(GradientInfo* info) const {
     if (info) {
         commonAsAGradient(info);