No one calls SkXfermode::GetProc16

src/core/SkXfermode.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkXfermode.h"
 #include "SkXfermode_proccoeff.h"
@@ skipping 1095 matching lines @@
 
 bool SkXfermode::IsOpaque(const SkXfermode* xfer, SrcColorOpacity opacityType) {
     // if xfer is NULL we treat it as srcOver which is opaque if our src is opaque
     if (!xfer) {
         return SkXfermode::kOpaque_SrcColorOpacity == opacityType;
     }
 
     return xfer->isOpaque(opacityType);
 }
 
-///////////////////////////////////////////////////////////////////////////////
-//////////// 16bit xfermode procs
-
-#ifdef SK_DEBUG
-static bool require_255(SkPMColor src) { return SkGetPackedA32(src) == 0xFF; }
-static bool require_0(SkPMColor src) { return SkGetPackedA32(src) == 0; }
-#endif
-
-static uint16_t src_modeproc16_255(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_255(src));
-    return SkPixel32ToPixel16(src);
-}
-
-static uint16_t dst_modeproc16(SkPMColor src, uint16_t dst) {
-    return dst;
-}
-
-static uint16_t srcover_modeproc16_0(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_0(src));
-    return dst;
-}
-
-static uint16_t srcover_modeproc16_255(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_255(src));
-    return SkPixel32ToPixel16(src);
-}
-
-static uint16_t dstover_modeproc16_0(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_0(src));
-    return dst;
-}
-
-static uint16_t dstover_modeproc16_255(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_255(src));
-    return dst;
-}
-
-static uint16_t srcin_modeproc16_255(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_255(src));
-    return SkPixel32ToPixel16(src);
-}
-
-static uint16_t dstin_modeproc16_255(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_255(src));
-    return dst;
-}
-
-static uint16_t dstout_modeproc16_0(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_0(src));
-    return dst;
-}
-
-static uint16_t srcatop_modeproc16(SkPMColor src, uint16_t dst) {
-    unsigned isa = 255 - SkGetPackedA32(src);
-
-    return SkPackRGB16(
-           SkPacked32ToR16(src) + SkAlphaMulAlpha(SkGetPackedR16(dst), isa),
-           SkPacked32ToG16(src) + SkAlphaMulAlpha(SkGetPackedG16(dst), isa),
-           SkPacked32ToB16(src) + SkAlphaMulAlpha(SkGetPackedB16(dst), isa));
-}
-
-static uint16_t srcatop_modeproc16_0(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_0(src));
-    return dst;
-}
-
-static uint16_t srcatop_modeproc16_255(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_255(src));
-    return SkPixel32ToPixel16(src);
-}
-
-static uint16_t dstatop_modeproc16_255(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_255(src));
-    return dst;
-}
-
-/*********
-    darken and lighten boil down to this.
-
-    darken  = (1 - Sa) * Dc + min(Sc, Dc)
-    lighten = (1 - Sa) * Dc + max(Sc, Dc)
-
-    if (Sa == 0) these become
-        darken  = Dc + min(0, Dc) = 0
-        lighten = Dc + max(0, Dc) = Dc
-
-    if (Sa == 1) these become
-        darken  = min(Sc, Dc)
-        lighten = max(Sc, Dc)
-*/
-
-static uint16_t darken_modeproc16_0(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_0(src));
-    return 0;
-}
-
-static uint16_t darken_modeproc16_255(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_255(src));
-    unsigned r = SkFastMin32(SkPacked32ToR16(src), SkGetPackedR16(dst));
-    unsigned g = SkFastMin32(SkPacked32ToG16(src), SkGetPackedG16(dst));
-    unsigned b = SkFastMin32(SkPacked32ToB16(src), SkGetPackedB16(dst));
-    return SkPackRGB16(r, g, b);
-}
-
-static uint16_t lighten_modeproc16_0(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_0(src));
-    return dst;
-}
-
-static uint16_t lighten_modeproc16_255(SkPMColor src, uint16_t dst) {
-    SkASSERT(require_255(src));
-    unsigned r = SkMax32(SkPacked32ToR16(src), SkGetPackedR16(dst));
-    unsigned g = SkMax32(SkPacked32ToG16(src), SkGetPackedG16(dst));
-    unsigned b = SkMax32(SkPacked32ToB16(src), SkGetPackedB16(dst));
-    return SkPackRGB16(r, g, b);
-}
-
-struct Proc16Rec {
-    SkXfermodeProc16    fProc16_0;
-    SkXfermodeProc16    fProc16_255;
-    SkXfermodeProc16    fProc16_General;
-};
-
-static const Proc16Rec gModeProcs16[] = {
-    { NULL,                 NULL,                   NULL            }, // CLEAR
-    { NULL,                 src_modeproc16_255,     NULL            },
-    { dst_modeproc16,       dst_modeproc16,         dst_modeproc16  },
-    { srcover_modeproc16_0, srcover_modeproc16_255, NULL            },
-    { dstover_modeproc16_0, dstover_modeproc16_255, NULL            },
-    { NULL,                 srcin_modeproc16_255,   NULL            },
-    { NULL,                 dstin_modeproc16_255,   NULL            },
-    { NULL,                 NULL,                   NULL            },// SRC_OUT
-    { dstout_modeproc16_0,  NULL,                   NULL            },
-    { srcatop_modeproc16_0, srcatop_modeproc16_255, srcatop_modeproc16  },
-    { NULL,                 dstatop_modeproc16_255, NULL            },
-    { NULL,                 NULL,                   NULL            }, // XOR
-
-    { NULL,                 NULL,                   NULL            }, // plus
-    { NULL,                 NULL,                   NULL            }, // modulate
-    { NULL,                 NULL,                   NULL            }, // screen
-    { NULL,                 NULL,                   NULL            }, // overlay
-    { darken_modeproc16_0,  darken_modeproc16_255,  NULL            }, // darken
-    { lighten_modeproc16_0, lighten_modeproc16_255, NULL            }, // lighten
-    { NULL,                 NULL,                   NULL            }, // colordodge
-    { NULL,                 NULL,                   NULL            }, // colorburn
-    { NULL,                 NULL,                   NULL            }, // hardlight
-    { NULL,                 NULL,                   NULL            }, // softlight
-    { NULL,                 NULL,                   NULL            }, // difference
-    { NULL,                 NULL,                   NULL            }, // exclusion
-    { NULL,                 NULL,                   NULL            }, // multiply
-    { NULL,                 NULL,                   NULL            }, // hue
-    { NULL,                 NULL,                   NULL            }, // saturation
-    { NULL,                 NULL,                   NULL            }, // color
-    { NULL,                 NULL,                   NULL            }, // luminosity
-};
-
-SkXfermodeProc16 SkXfermode::GetProc16(Mode mode, SkColor srcColor) {
-    SkXfermodeProc16  proc16 = NULL;
-    if ((unsigned)mode < kModeCount) {
-        const Proc16Rec& rec = gModeProcs16[mode];
-        unsigned a = SkColorGetA(srcColor);
-
-        if (0 == a) {
-            proc16 = rec.fProc16_0;
-        } else if (255 == a) {
-            proc16 = rec.fProc16_255;
-        } else {
-            proc16 = rec.fProc16_General;
-        }
-    }
-    return proc16;
-}
-
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkXfermode)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkProcCoeffXfermode)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END