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-rw-r--r--gfx/skia/patches/archive/0010-Bug-836892-Add-new-blending-modes-to-SkXfermode.patch698
1 files changed, 698 insertions, 0 deletions
diff --git a/gfx/skia/patches/archive/0010-Bug-836892-Add-new-blending-modes-to-SkXfermode.patch b/gfx/skia/patches/archive/0010-Bug-836892-Add-new-blending-modes-to-SkXfermode.patch
new file mode 100644
index 0000000000..a446037de0
--- /dev/null
+++ b/gfx/skia/patches/archive/0010-Bug-836892-Add-new-blending-modes-to-SkXfermode.patch
@@ -0,0 +1,698 @@
+# HG changeset patch
+# User Rik Cabanier <cabanier@adobe.com>
+# Date 1360273929 -46800
+# Node ID 3ac8edca3a03b3d22240b5a5b95ae3b5ada9877d
+# Parent cbb67fe70b864b36165061e1fd3b083cd09af087
+Bug 836892 - Add new blending modes to SkXfermode. r=gw280
+
+diff --git a/gfx/skia/include/core/SkXfermode.h b/gfx/skia/include/core/SkXfermode.h
+--- a/gfx/skia/include/core/SkXfermode.h
++++ b/gfx/skia/include/core/SkXfermode.h
+@@ -96,33 +96,37 @@ public:
+ kDstOut_Mode, //!< [Da * (1 - Sa), Dc * (1 - Sa)]
+ kSrcATop_Mode, //!< [Da, Sc * Da + (1 - Sa) * Dc]
+ kDstATop_Mode, //!< [Sa, Sa * Dc + Sc * (1 - Da)]
+ kXor_Mode, //!< [Sa + Da - 2 * Sa * Da, Sc * (1 - Da) + (1 - Sa) * Dc]
+
+ // all remaining modes are defined in the SVG Compositing standard
+ // http://www.w3.org/TR/2009/WD-SVGCompositing-20090430/
+ kPlus_Mode,
+- kMultiply_Mode,
+
+ // all above modes can be expressed as pair of src/dst Coeffs
+ kCoeffModesCnt,
+
+- kScreen_Mode = kCoeffModesCnt,
++ kMultiply_Mode = kCoeffModesCnt,
++ kScreen_Mode,
+ kOverlay_Mode,
+ kDarken_Mode,
+ kLighten_Mode,
+ kColorDodge_Mode,
+ kColorBurn_Mode,
+ kHardLight_Mode,
+ kSoftLight_Mode,
+ kDifference_Mode,
+ kExclusion_Mode,
++ kHue_Mode,
++ kSaturation_Mode,
++ kColor_Mode,
++ kLuminosity_Mode,
+
+- kLastMode = kExclusion_Mode
++ kLastMode = kLuminosity_Mode
+ };
+
+ /**
+ * If the xfermode is one of the modes in the Mode enum, then asMode()
+ * returns true and sets (if not null) mode accordingly. Otherwise it
+ * returns false and ignores the mode parameter.
+ */
+ virtual bool asMode(Mode* mode);
+diff --git a/gfx/skia/src/core/SkXfermode.cpp b/gfx/skia/src/core/SkXfermode.cpp
+--- a/gfx/skia/src/core/SkXfermode.cpp
++++ b/gfx/skia/src/core/SkXfermode.cpp
+@@ -7,16 +7,18 @@
+ */
+
+
+ #include "SkXfermode.h"
+ #include "SkColorPriv.h"
+ #include "SkFlattenableBuffers.h"
+ #include "SkMathPriv.h"
+
++#include <algorithm>
++
+ SK_DEFINE_INST_COUNT(SkXfermode)
+
+ #define SkAlphaMulAlpha(a, b) SkMulDiv255Round(a, b)
+
+ #if 0
+ // idea for higher precision blends in xfer procs (and slightly faster)
+ // see DstATop as a probable caller
+ static U8CPU mulmuldiv255round(U8CPU a, U8CPU b, U8CPU c, U8CPU d) {
+@@ -176,244 +178,439 @@ static SkPMColor xor_modeproc(SkPMColor
+ static SkPMColor plus_modeproc(SkPMColor src, SkPMColor dst) {
+ unsigned b = saturated_add(SkGetPackedB32(src), SkGetPackedB32(dst));
+ unsigned g = saturated_add(SkGetPackedG32(src), SkGetPackedG32(dst));
+ unsigned r = saturated_add(SkGetPackedR32(src), SkGetPackedR32(dst));
+ unsigned a = saturated_add(SkGetPackedA32(src), SkGetPackedA32(dst));
+ return SkPackARGB32(a, r, g, b);
+ }
+
++static inline int srcover_byte(int a, int b) {
++ return a + b - SkAlphaMulAlpha(a, b);
++}
++
++#define blendfunc_byte(sc, dc, sa, da, blendfunc) \
++ clamp_div255round(sc * (255 - da) + dc * (255 - sa) + blendfunc(sc, dc, sa, da))
++
+ // kMultiply_Mode
++static inline int multiply_byte(int sc, int dc, int sa, int da) {
++ return sc * dc;
++}
+ static SkPMColor multiply_modeproc(SkPMColor src, SkPMColor dst) {
+- int a = SkAlphaMulAlpha(SkGetPackedA32(src), SkGetPackedA32(dst));
+- int r = SkAlphaMulAlpha(SkGetPackedR32(src), SkGetPackedR32(dst));
+- int g = SkAlphaMulAlpha(SkGetPackedG32(src), SkGetPackedG32(dst));
+- int b = SkAlphaMulAlpha(SkGetPackedB32(src), SkGetPackedB32(dst));
++ int sa = SkGetPackedA32(src);
++ int da = SkGetPackedA32(dst);
++ int a = srcover_byte(sa, da);
++ int r = blendfunc_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da, multiply_byte);
++ int g = blendfunc_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da, multiply_byte);
++ int b = blendfunc_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da, multiply_byte);
+ return SkPackARGB32(a, r, g, b);
+ }
+
+ // kScreen_Mode
+-static inline int srcover_byte(int a, int b) {
+- return a + b - SkAlphaMulAlpha(a, b);
++static inline int screen_byte(int sc, int dc, int sa, int da) {
++ return sc * da + sa * dc - sc * dc;
+ }
+ static SkPMColor screen_modeproc(SkPMColor src, SkPMColor dst) {
+- int a = srcover_byte(SkGetPackedA32(src), SkGetPackedA32(dst));
+- int r = srcover_byte(SkGetPackedR32(src), SkGetPackedR32(dst));
+- int g = srcover_byte(SkGetPackedG32(src), SkGetPackedG32(dst));
+- int b = srcover_byte(SkGetPackedB32(src), SkGetPackedB32(dst));
++ int sa = SkGetPackedA32(src);
++ int da = SkGetPackedA32(dst);
++ int a = srcover_byte(sa, da);
++ int r = blendfunc_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da, screen_byte);
++ int g = blendfunc_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da, screen_byte);
++ int b = blendfunc_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da, screen_byte);
++ return SkPackARGB32(a, r, g, b);
++}
++
++// kHardLight_Mode
++static inline int hardlight_byte(int sc, int dc, int sa, int da) {
++ if(!sa || !da)
++ return sc * da;
++ float Sc = (float)sc/sa;
++ float Dc = (float)dc/da;
++ if(Sc <= 0.5)
++ Sc *= 2 * Dc;
++ else
++ Sc = -1 + 2 * Sc + 2 * Dc - 2 * Sc * Dc;
++
++ return Sc * sa * da;
++}
++static SkPMColor hardlight_modeproc(SkPMColor src, SkPMColor dst) {
++ int sa = SkGetPackedA32(src);
++ int da = SkGetPackedA32(dst);
++ int a = srcover_byte(sa, da);
++ int r = blendfunc_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da, hardlight_byte);
++ int g = blendfunc_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da, hardlight_byte);
++ int b = blendfunc_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da, hardlight_byte);
+ return SkPackARGB32(a, r, g, b);
+ }
+
+ // kOverlay_Mode
+ static inline int overlay_byte(int sc, int dc, int sa, int da) {
+- int tmp = sc * (255 - da) + dc * (255 - sa);
+- int rc;
+- if (2 * dc <= da) {
+- rc = 2 * sc * dc;
+- } else {
+- rc = sa * da - 2 * (da - dc) * (sa - sc);
+- }
+- return clamp_div255round(rc + tmp);
++ return hardlight_byte(dc, sc, da, sa);
+ }
+ static SkPMColor overlay_modeproc(SkPMColor src, SkPMColor dst) {
+ int sa = SkGetPackedA32(src);
+ int da = SkGetPackedA32(dst);
+ int a = srcover_byte(sa, da);
+- int r = overlay_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da);
+- int g = overlay_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da);
+- int b = overlay_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da);
++ int r = blendfunc_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da, overlay_byte);
++ int g = blendfunc_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da, overlay_byte);
++ int b = blendfunc_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da, overlay_byte);
+ return SkPackARGB32(a, r, g, b);
+ }
+
+ // kDarken_Mode
+ static inline int darken_byte(int sc, int dc, int sa, int da) {
+- int sd = sc * da;
+- int ds = dc * sa;
+- if (sd < ds) {
+- // srcover
+- return sc + dc - SkDiv255Round(ds);
+- } else {
+- // dstover
+- return dc + sc - SkDiv255Round(sd);
+- }
++ return SkMin32(sc * da, sa * dc);
+ }
+ static SkPMColor darken_modeproc(SkPMColor src, SkPMColor dst) {
+ int sa = SkGetPackedA32(src);
+ int da = SkGetPackedA32(dst);
+ int a = srcover_byte(sa, da);
+- int r = darken_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da);
+- int g = darken_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da);
+- int b = darken_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da);
++ int r = blendfunc_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da, darken_byte);
++ int g = blendfunc_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da, darken_byte);
++ int b = blendfunc_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da, darken_byte);
+ return SkPackARGB32(a, r, g, b);
+ }
+
+ // kLighten_Mode
+ static inline int lighten_byte(int sc, int dc, int sa, int da) {
+- int sd = sc * da;
+- int ds = dc * sa;
+- if (sd > ds) {
+- // srcover
+- return sc + dc - SkDiv255Round(ds);
+- } else {
+- // dstover
+- return dc + sc - SkDiv255Round(sd);
+- }
++ return SkMax32(sc * da, sa * dc);
+ }
+ static SkPMColor lighten_modeproc(SkPMColor src, SkPMColor dst) {
+ int sa = SkGetPackedA32(src);
+ int da = SkGetPackedA32(dst);
+ int a = srcover_byte(sa, da);
+- int r = lighten_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da);
+- int g = lighten_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da);
+- int b = lighten_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da);
++ int r = blendfunc_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da, lighten_byte);
++ int g = blendfunc_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da, lighten_byte);
++ int b = blendfunc_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da, lighten_byte);
+ return SkPackARGB32(a, r, g, b);
+ }
+
+ // kColorDodge_Mode
+ static inline int colordodge_byte(int sc, int dc, int sa, int da) {
+- int diff = sa - sc;
+- int rc;
+- if (0 == diff) {
+- rc = sa * da + sc * (255 - da) + dc * (255 - sa);
+- rc = SkDiv255Round(rc);
+- } else {
+- int tmp = (dc * sa << 15) / (da * diff);
+- rc = SkDiv255Round(sa * da) * tmp >> 15;
+- // don't clamp here, since we'll do it in our modeproc
+- }
+- return rc;
++ if (dc == 0)
++ return 0;
++ // Avoid division by 0
++ if (sc == sa)
++ return da * sa;
++
++ return SkMin32(sa * da, sa * sa * dc / (sa - sc));
+ }
+ static SkPMColor colordodge_modeproc(SkPMColor src, SkPMColor dst) {
+- // added to avoid div-by-zero in colordodge_byte
+- if (0 == dst) {
+- return src;
+- }
+-
+ int sa = SkGetPackedA32(src);
+ int da = SkGetPackedA32(dst);
+ int a = srcover_byte(sa, da);
+- int r = colordodge_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da);
+- int g = colordodge_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da);
+- int b = colordodge_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da);
+- r = clamp_max(r, a);
+- g = clamp_max(g, a);
+- b = clamp_max(b, a);
++ int r = blendfunc_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da, colordodge_byte);
++ int g = blendfunc_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da, colordodge_byte);
++ int b = blendfunc_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da, colordodge_byte);
+ return SkPackARGB32(a, r, g, b);
+ }
+
+ // kColorBurn_Mode
+ static inline int colorburn_byte(int sc, int dc, int sa, int da) {
+- int rc;
+- if (dc == da && 0 == sc) {
+- rc = sa * da + dc * (255 - sa);
+- } else if (0 == sc) {
+- return SkAlphaMulAlpha(dc, 255 - sa);
+- } else {
+- int tmp = (sa * (da - dc) * 256) / (sc * da);
+- if (tmp > 256) {
+- tmp = 256;
+- }
+- int tmp2 = sa * da;
+- rc = tmp2 - (tmp2 * tmp >> 8) + sc * (255 - da) + dc * (255 - sa);
+- }
+- return SkDiv255Round(rc);
++ // Avoid division by 0
++ if(dc == da)
++ return sa * da;
++ if(sc == 0)
++ return 0;
++
++ return sa * da - SkMin32(sa * da, sa * sa * (da - dc) / sc);
+ }
+ static SkPMColor colorburn_modeproc(SkPMColor src, SkPMColor dst) {
+- // added to avoid div-by-zero in colorburn_byte
+- if (0 == dst) {
+- return src;
+- }
+-
+ int sa = SkGetPackedA32(src);
+ int da = SkGetPackedA32(dst);
+ int a = srcover_byte(sa, da);
+- int r = colorburn_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da);
+- int g = colorburn_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da);
+- int b = colorburn_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da);
+- return SkPackARGB32(a, r, g, b);
+-}
+-
+-// kHardLight_Mode
+-static inline int hardlight_byte(int sc, int dc, int sa, int da) {
+- int rc;
+- if (2 * sc <= sa) {
+- rc = 2 * sc * dc;
+- } else {
+- rc = sa * da - 2 * (da - dc) * (sa - sc);
+- }
+- return clamp_div255round(rc + sc * (255 - da) + dc * (255 - sa));
+-}
+-static SkPMColor hardlight_modeproc(SkPMColor src, SkPMColor dst) {
+- int sa = SkGetPackedA32(src);
+- int da = SkGetPackedA32(dst);
+- int a = srcover_byte(sa, da);
+- int r = hardlight_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da);
+- int g = hardlight_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da);
+- int b = hardlight_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da);
++ int r = blendfunc_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da, colorburn_byte);
++ int g = blendfunc_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da, colorburn_byte);
++ int b = blendfunc_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da, colorburn_byte);
+ return SkPackARGB32(a, r, g, b);
+ }
+
+ // returns 255 * sqrt(n/255)
+ static U8CPU sqrt_unit_byte(U8CPU n) {
+ return SkSqrtBits(n, 15+4);
+ }
+
+ // kSoftLight_Mode
+ static inline int softlight_byte(int sc, int dc, int sa, int da) {
+ int m = da ? dc * 256 / da : 0;
+ int rc;
+- if (2 * sc <= sa) {
+- rc = dc * (sa + ((2 * sc - sa) * (256 - m) >> 8));
+- } else if (4 * dc <= da) {
++ if (2 * sc <= sa)
++ return dc * (sa + ((2 * sc - sa) * (256 - m) >> 8));
++
++ if (4 * dc <= da) {
+ int tmp = (4 * m * (4 * m + 256) * (m - 256) >> 16) + 7 * m;
+- rc = dc * sa + (da * (2 * sc - sa) * tmp >> 8);
+- } else {
+- int tmp = sqrt_unit_byte(m) - m;
+- rc = dc * sa + (da * (2 * sc - sa) * tmp >> 8);
++ return dc * sa + (da * (2 * sc - sa) * tmp >> 8);
+ }
+- return clamp_div255round(rc + sc * (255 - da) + dc * (255 - sa));
++ int tmp = sqrt_unit_byte(m) - m;
++ return rc = dc * sa + (da * (2 * sc - sa) * tmp >> 8);
+ }
+ static SkPMColor softlight_modeproc(SkPMColor src, SkPMColor dst) {
+ int sa = SkGetPackedA32(src);
+ int da = SkGetPackedA32(dst);
+ int a = srcover_byte(sa, da);
+- int r = softlight_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da);
+- int g = softlight_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da);
+- int b = softlight_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da);
++ int r = blendfunc_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da, softlight_byte);
++ int g = blendfunc_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da, softlight_byte);
++ int b = blendfunc_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da, softlight_byte);
+ return SkPackARGB32(a, r, g, b);
+ }
+
+ // kDifference_Mode
+ static inline int difference_byte(int sc, int dc, int sa, int da) {
+- int tmp = SkMin32(sc * da, dc * sa);
+- return clamp_signed_byte(sc + dc - 2 * SkDiv255Round(tmp));
++ int tmp = dc * sa - sc * da;
++ if(tmp<0)
++ return - tmp;
++
++ return tmp;
+ }
+ static SkPMColor difference_modeproc(SkPMColor src, SkPMColor dst) {
+ int sa = SkGetPackedA32(src);
+ int da = SkGetPackedA32(dst);
+ int a = srcover_byte(sa, da);
+- int r = difference_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da);
+- int g = difference_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da);
+- int b = difference_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da);
++ int r = blendfunc_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da, difference_byte);
++ int g = blendfunc_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da, difference_byte);
++ int b = blendfunc_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da, difference_byte);
+ return SkPackARGB32(a, r, g, b);
+ }
+
+ // kExclusion_Mode
+ static inline int exclusion_byte(int sc, int dc, int sa, int da) {
+- // this equations is wacky, wait for SVG to confirm it
+- int r = sc * da + dc * sa - 2 * sc * dc + sc * (255 - da) + dc * (255 - sa);
+- return clamp_div255round(r);
++ return sc * da + dc * sa - 2 * dc * sc;
+ }
+ static SkPMColor exclusion_modeproc(SkPMColor src, SkPMColor dst) {
+ int sa = SkGetPackedA32(src);
+ int da = SkGetPackedA32(dst);
+ int a = srcover_byte(sa, da);
+- int r = exclusion_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da);
+- int g = exclusion_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da);
+- int b = exclusion_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da);
++ int r = blendfunc_byte(SkGetPackedR32(src), SkGetPackedR32(dst), sa, da, exclusion_byte);
++ int g = blendfunc_byte(SkGetPackedG32(src), SkGetPackedG32(dst), sa, da, exclusion_byte);
++ int b = blendfunc_byte(SkGetPackedB32(src), SkGetPackedB32(dst), sa, da, exclusion_byte);
++ return SkPackARGB32(a, r, g, b);
++}
++
++///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
++struct BlendColor {
++ float r;
++ float g;
++ float b;
++
++ BlendColor(): r(0), g(0), b(0)
++ {}
++};
++
++static inline float Lum(BlendColor C)
++{
++ return C.r * 0.3 + C.g * 0.59 + C.b* 0.11;
++}
++
++static inline float SkMinFloat(float a, float b)
++{
++ if (a > b)
++ a = b;
++ return a;
++}
++
++static inline float SkMaxFloat(float a, float b)
++{
++ if (a < b)
++ a = b;
++ return a;
++}
++
++#define minimum(C) SkMinFloat(SkMinFloat(C.r, C.g), C.b)
++#define maximum(C) SkMaxFloat(SkMaxFloat(C.r, C.g), C.b)
++
++static inline float Sat(BlendColor c) {
++ return maximum(c) - minimum(c);
++}
++
++static inline void setSaturationComponents(float& Cmin, float& Cmid, float& Cmax, float s) {
++ if(Cmax > Cmin) {
++ Cmid = (((Cmid - Cmin) * s ) / (Cmax - Cmin));
++ Cmax = s;
++ } else {
++ Cmax = 0;
++ Cmid = 0;
++ }
++ Cmin = 0;
++}
++
++static inline BlendColor SetSat(BlendColor C, float s) {
++ if(C.r <= C.g) {
++ if(C.g <= C.b)
++ setSaturationComponents(C.r, C.g, C.b, s);
++ else
++ if(C.r <= C.b)
++ setSaturationComponents(C.r, C.b, C.g, s);
++ else
++ setSaturationComponents(C.b, C.r, C.g, s);
++ } else if(C.r <= C.b)
++ setSaturationComponents(C.g, C.r, C.b, s);
++ else
++ if(C.g <= C.b)
++ setSaturationComponents(C.g, C.b, C.r, s);
++ else
++ setSaturationComponents(C.b, C.g, C.r, s);
++
++ return C;
++}
++
++static inline BlendColor clipColor(BlendColor C) {
++ float L = Lum(C);
++ float n = minimum(C);
++ float x = maximum(C);
++ if(n < 0) {
++ C.r = L + (((C.r - L) * L) / (L - n));
++ C.g = L + (((C.g - L) * L) / (L - n));
++ C.b = L + (((C.b - L) * L) / (L - n));
++ }
++
++ if(x > 1) {
++ C.r = L + (((C.r - L) * (1 - L)) / (x - L));
++ C.g = L + (((C.g - L) * (1 - L)) / (x - L));
++ C.b = L + (((C.b - L) * (1 - L)) / (x - L));
++ }
++ return C;
++}
++
++static inline BlendColor SetLum(BlendColor C, float l) {
++ float d = l - Lum(C);
++ C.r += d;
++ C.g += d;
++ C.b += d;
++
++ return clipColor(C);
++}
++
++#define blendfunc_nonsep_byte(sc, dc, sa, da, blendval) \
++ clamp_div255round(sc * (255 - da) + dc * (255 - sa) + (int)(sa * da * blendval))
++
++static SkPMColor hue_modeproc(SkPMColor src, SkPMColor dst) {
++ int sr = SkGetPackedR32(src);
++ int sg = SkGetPackedG32(src);
++ int sb = SkGetPackedB32(src);
++ int sa = SkGetPackedA32(src);
++
++ int dr = SkGetPackedR32(dst);
++ int dg = SkGetPackedG32(dst);
++ int db = SkGetPackedB32(dst);
++ int da = SkGetPackedA32(dst);
++
++ BlendColor Cs;
++ if(sa) {
++ Cs.r = (float)sr / sa;
++ Cs.g = (float)sg / sa;
++ Cs.b = (float)sb / sa;
++ BlendColor Cd;
++ if(da) {
++ Cd.r = (float)dr / da;
++ Cd.g = (float)dg / da;
++ Cd.b = (float)db / da;
++ Cs = SetLum(SetSat(Cs, Sat(Cd)), Lum(Cd));
++ }
++ }
++
++ int a = srcover_byte(sa, da);
++ int r = blendfunc_nonsep_byte(sr, dr, sa, da, Cs.r);
++ int g = blendfunc_nonsep_byte(sg, dg, sa, da, Cs.g);
++ int b = blendfunc_nonsep_byte(sb, db, sa, da, Cs.b);
++ return SkPackARGB32(a, r, g, b);
++}
++
++static SkPMColor saturation_modeproc(SkPMColor src, SkPMColor dst) {
++ int sr = SkGetPackedR32(src);
++ int sg = SkGetPackedG32(src);
++ int sb = SkGetPackedB32(src);
++ int sa = SkGetPackedA32(src);
++
++ int dr = SkGetPackedR32(dst);
++ int dg = SkGetPackedG32(dst);
++ int db = SkGetPackedB32(dst);
++ int da = SkGetPackedA32(dst);
++
++ BlendColor Cs;
++ if(sa) {
++ Cs.r = (float)sr / sa;
++ Cs.g = (float)sg / sa;
++ Cs.b = (float)sb / sa;
++ BlendColor Cd;
++ if(da) {
++ Cd.r = (float)dr / da;
++ Cd.g = (float)dg / da;
++ Cd.b = (float)db / da;
++ Cs = SetLum(SetSat(Cd, Sat(Cs)), Lum(Cd));
++ }
++ }
++
++ int a = srcover_byte(sa, da);
++ int r = blendfunc_nonsep_byte(sr, dr, sa, da, Cs.r);
++ int g = blendfunc_nonsep_byte(sg, dg, sa, da, Cs.g);
++ int b = blendfunc_nonsep_byte(sb, db, sa, da, Cs.b);
++ return SkPackARGB32(a, r, g, b);
++}
++
++static SkPMColor color_modeproc(SkPMColor src, SkPMColor dst) {
++ int sr = SkGetPackedR32(src);
++ int sg = SkGetPackedG32(src);
++ int sb = SkGetPackedB32(src);
++ int sa = SkGetPackedA32(src);
++
++ int dr = SkGetPackedR32(dst);
++ int dg = SkGetPackedG32(dst);
++ int db = SkGetPackedB32(dst);
++ int da = SkGetPackedA32(dst);
++
++ BlendColor Cs;
++ if(sa) {
++ Cs.r = (float)sr / sa;
++ Cs.g = (float)sg / sa;
++ Cs.b = (float)sb / sa;
++ BlendColor Cd;
++ if(da) {
++ Cd.r = (float)dr / da;
++ Cd.g = (float)dg / da;
++ Cd.b = (float)db / da;
++ Cs = SetLum(Cs, Lum(Cd));
++ }
++ }
++
++ int a = srcover_byte(sa, da);
++ int r = blendfunc_nonsep_byte(sr, dr, sa, da, Cs.r);
++ int g = blendfunc_nonsep_byte(sg, dg, sa, da, Cs.g);
++ int b = blendfunc_nonsep_byte(sb, db, sa, da, Cs.b);
++ return SkPackARGB32(a, r, g, b);
++}
++
++static SkPMColor luminosity_modeproc(SkPMColor src, SkPMColor dst) {
++ int sr = SkGetPackedR32(src);
++ int sg = SkGetPackedG32(src);
++ int sb = SkGetPackedB32(src);
++ int sa = SkGetPackedA32(src);
++
++ int dr = SkGetPackedR32(dst);
++ int dg = SkGetPackedG32(dst);
++ int db = SkGetPackedB32(dst);
++ int da = SkGetPackedA32(dst);
++
++ BlendColor Cs;
++ if(sa) {
++ Cs.r = (float)sr / sa;
++ Cs.g = (float)sg / sa;
++ Cs.b = (float)sb / sa;
++ BlendColor Cd;
++ if(da) {
++ Cd.r = (float)dr / da;
++ Cd.g = (float)dg / da;
++ Cd.b = (float)db / da;
++ Cs = SetLum(Cd, Lum(Cs));
++ }
++ }
++
++ int a = srcover_byte(sa, da);
++ int r = blendfunc_nonsep_byte(sr, dr, sa, da, Cs.r);
++ int g = blendfunc_nonsep_byte(sg, dg, sa, da, Cs.g);
++ int b = blendfunc_nonsep_byte(sb, db, sa, da, Cs.b);
+ return SkPackARGB32(a, r, g, b);
+ }
+
+ struct ProcCoeff {
+ SkXfermodeProc fProc;
+ SkXfermode::Coeff fSC;
+ SkXfermode::Coeff fDC;
+ };
+@@ -430,27 +627,31 @@ static const ProcCoeff gProcCoeffs[] = {
+ { dstin_modeproc, SkXfermode::kZero_Coeff, SkXfermode::kSA_Coeff },
+ { srcout_modeproc, SkXfermode::kIDA_Coeff, SkXfermode::kZero_Coeff },
+ { dstout_modeproc, SkXfermode::kZero_Coeff, SkXfermode::kISA_Coeff },
+ { srcatop_modeproc, SkXfermode::kDA_Coeff, SkXfermode::kISA_Coeff },
+ { dstatop_modeproc, SkXfermode::kIDA_Coeff, SkXfermode::kSA_Coeff },
+ { xor_modeproc, SkXfermode::kIDA_Coeff, SkXfermode::kISA_Coeff },
+
+ { plus_modeproc, SkXfermode::kOne_Coeff, SkXfermode::kOne_Coeff },
+- { multiply_modeproc,SkXfermode::kZero_Coeff, SkXfermode::kSC_Coeff },
++ { multiply_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF},
+ { screen_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
+ { overlay_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
+ { darken_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
+ { lighten_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
+ { colordodge_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
+ { colorburn_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
+ { hardlight_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
+ { softlight_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
+ { difference_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
+ { exclusion_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
++ { hue_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
++ { saturation_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
++ { color_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
++ { luminosity_modeproc, CANNOT_USE_COEFF, CANNOT_USE_COEFF },
+ };
+
+ ///////////////////////////////////////////////////////////////////////////////
+
+ bool SkXfermode::asCoeff(Coeff* src, Coeff* dst) {
+ return false;
+ }
+
+@@ -1172,16 +1373,20 @@ static const Proc16Rec gModeProcs16[] =
+ { 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 }, // 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);
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-14 02:19:46 +0000