Mark all methods on SkXfermode as const, in preparation for declaring all
xfermodes as immutable/reentrant-safe Review URL: https://codereview.appspot.com/6941065 git-svn-id: http://skia.googlecode.com/svn/trunk@6855 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@google.com
parent
82ec0b00f3
commit
30da745bbf
@ -28,13 +28,13 @@ public:
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SkXfermode() {}
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virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]);
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const SkAlpha aa[]) const;
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virtual void xfer16(uint16_t dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]);
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const SkAlpha aa[]) const;
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virtual void xfer4444(uint16_t dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]);
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const SkAlpha aa[]) const;
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virtual void xferA8(SkAlpha dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]);
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const SkAlpha aa[]) const;
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/** Enum of possible coefficients to describe some xfermodes
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*/
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@ -68,13 +68,13 @@ public:
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srcover one isa
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dstover ida one
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*/
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virtual bool asCoeff(Coeff* src, Coeff* dst);
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virtual bool asCoeff(Coeff* src, Coeff* dst) const;
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/**
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* The same as calling xfermode->asCoeff(..), except that this also checks
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* if the xfermode is NULL, and if so, treats its as kSrcOver_Mode.
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*/
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static bool AsCoeff(SkXfermode*, Coeff* src, Coeff* dst);
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static bool AsCoeff(const SkXfermode*, Coeff* src, Coeff* dst);
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/** List of predefined xfermodes.
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The algebra for the modes uses the following symbols:
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@ -125,13 +125,13 @@ public:
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* returns true and sets (if not null) mode accordingly. Otherwise it
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* returns false and ignores the mode parameter.
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*/
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virtual bool asMode(Mode* mode);
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virtual bool asMode(Mode* mode) const;
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/**
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* The same as calling xfermode->asMode(mode), except that this also checks
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* if the xfermode is NULL, and if so, treats its as kSrcOver_Mode.
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*/
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static bool AsMode(SkXfermode*, Mode* mode);
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static bool AsMode(const SkXfermode*, Mode* mode);
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/**
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* Returns true if the xfermode claims to be the specified Mode. This works
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@ -143,7 +143,7 @@ public:
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* ...
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* }
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*/
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static bool IsMode(SkXfermode* xfer, Mode mode);
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static bool IsMode(const SkXfermode* xfer, Mode mode);
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/** Return an SkXfermode object for the specified mode.
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*/
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@ -170,7 +170,7 @@ public:
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static bool ModeAsCoeff(Mode mode, Coeff* src, Coeff* dst);
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// DEPRECATED: call AsMode(...)
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static bool IsMode(SkXfermode* xfer, Mode* mode) {
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static bool IsMode(const SkXfermode* xfer, Mode* mode) {
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return AsMode(xfer, mode);
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}
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@ -186,7 +186,7 @@ protected:
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This method will not be called directly by the client, so it need not
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be implemented if your subclass has overridden xfer32/xfer16/xferA8
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*/
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virtual SkPMColor xferColor(SkPMColor src, SkPMColor dst);
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virtual SkPMColor xferColor(SkPMColor src, SkPMColor dst) const;
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private:
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enum {
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@ -208,13 +208,13 @@ public:
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// overrides from SkXfermode
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virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]) SK_OVERRIDE;
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const SkAlpha aa[]) const SK_OVERRIDE;
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virtual void xfer16(uint16_t dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]) SK_OVERRIDE;
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const SkAlpha aa[]) const SK_OVERRIDE;
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virtual void xfer4444(uint16_t dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]) SK_OVERRIDE;
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const SkAlpha aa[]) const SK_OVERRIDE;
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virtual void xferA8(SkAlpha dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]) SK_OVERRIDE;
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const SkAlpha aa[]) const SK_OVERRIDE;
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SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkProcXfermode)
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@ -41,13 +41,13 @@ public:
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// overrides from SkXfermode
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virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]) SK_OVERRIDE;
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const SkAlpha aa[]) const SK_OVERRIDE;
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virtual void xfer16(uint16_t dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]) SK_OVERRIDE;
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const SkAlpha aa[]) const SK_OVERRIDE;
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virtual void xfer4444(uint16_t dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]) SK_OVERRIDE;
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const SkAlpha aa[]) const SK_OVERRIDE;
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virtual void xferA8(SkAlpha dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]) SK_OVERRIDE;
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const SkAlpha aa[]) const SK_OVERRIDE;
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SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkAvoidXfermode)
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@ -450,22 +450,22 @@ static const ProcCoeff gProcCoeffs[] = {
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///////////////////////////////////////////////////////////////////////////////
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bool SkXfermode::asCoeff(Coeff* src, Coeff* dst) {
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bool SkXfermode::asCoeff(Coeff* src, Coeff* dst) const {
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return false;
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}
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bool SkXfermode::asMode(Mode* mode) {
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bool SkXfermode::asMode(Mode* mode) const {
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return false;
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}
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SkPMColor SkXfermode::xferColor(SkPMColor src, SkPMColor dst) {
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SkPMColor SkXfermode::xferColor(SkPMColor src, SkPMColor dst) const{
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// no-op. subclasses should override this
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return dst;
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}
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void SkXfermode::xfer32(SkPMColor* SK_RESTRICT dst,
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const SkPMColor* SK_RESTRICT src, int count,
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const SkAlpha* SK_RESTRICT aa) {
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && src && count >= 0);
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if (NULL == aa) {
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@ -489,7 +489,7 @@ void SkXfermode::xfer32(SkPMColor* SK_RESTRICT dst,
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void SkXfermode::xfer16(uint16_t* dst,
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const SkPMColor* SK_RESTRICT src, int count,
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const SkAlpha* SK_RESTRICT aa) {
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && src && count >= 0);
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if (NULL == aa) {
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@ -514,8 +514,7 @@ void SkXfermode::xfer16(uint16_t* dst,
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void SkXfermode::xfer4444(SkPMColor16* SK_RESTRICT dst,
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const SkPMColor* SK_RESTRICT src, int count,
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const SkAlpha* SK_RESTRICT aa)
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{
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && src && count >= 0);
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if (NULL == aa) {
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@ -540,8 +539,7 @@ void SkXfermode::xfer4444(SkPMColor16* SK_RESTRICT dst,
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void SkXfermode::xferA8(SkAlpha* SK_RESTRICT dst,
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const SkPMColor src[], int count,
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const SkAlpha* SK_RESTRICT aa)
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{
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && src && count >= 0);
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if (NULL == aa) {
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@ -569,7 +567,7 @@ void SkXfermode::xferA8(SkAlpha* SK_RESTRICT dst,
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void SkProcXfermode::xfer32(SkPMColor* SK_RESTRICT dst,
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const SkPMColor* SK_RESTRICT src, int count,
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const SkAlpha* SK_RESTRICT aa) {
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && src && count >= 0);
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SkXfermodeProc proc = fProc;
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@ -597,7 +595,7 @@ void SkProcXfermode::xfer32(SkPMColor* SK_RESTRICT dst,
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void SkProcXfermode::xfer16(uint16_t* SK_RESTRICT dst,
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const SkPMColor* SK_RESTRICT src, int count,
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const SkAlpha* SK_RESTRICT aa) {
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && src && count >= 0);
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SkXfermodeProc proc = fProc;
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@ -626,7 +624,7 @@ void SkProcXfermode::xfer16(uint16_t* SK_RESTRICT dst,
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void SkProcXfermode::xfer4444(SkPMColor16* SK_RESTRICT dst,
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const SkPMColor* SK_RESTRICT src, int count,
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const SkAlpha* SK_RESTRICT aa) {
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && src && count >= 0);
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SkXfermodeProc proc = fProc;
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@ -655,7 +653,7 @@ void SkProcXfermode::xfer4444(SkPMColor16* SK_RESTRICT dst,
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void SkProcXfermode::xferA8(SkAlpha* SK_RESTRICT dst,
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const SkPMColor* SK_RESTRICT src, int count,
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const SkAlpha* SK_RESTRICT aa) {
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && src && count >= 0);
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SkXfermodeProc proc = fProc;
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@ -711,14 +709,14 @@ public:
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fDstCoeff = rec.fDC;
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}
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virtual bool asMode(Mode* mode) {
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virtual bool asMode(Mode* mode) const SK_OVERRIDE {
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if (mode) {
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*mode = fMode;
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}
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return true;
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}
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virtual bool asCoeff(Coeff* sc, Coeff* dc) {
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virtual bool asCoeff(Coeff* sc, Coeff* dc) const SK_OVERRIDE {
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if (CANNOT_USE_COEFF == fSrcCoeff) {
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return false;
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}
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@ -765,8 +763,8 @@ class SkClearXfermode : public SkProcCoeffXfermode {
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public:
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SkClearXfermode(const ProcCoeff& rec) : SkProcCoeffXfermode(rec, kClear_Mode) {}
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virtual void xfer32(SkPMColor*, const SkPMColor*, int, const SkAlpha*) SK_OVERRIDE;
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virtual void xferA8(SkAlpha*, const SkPMColor*, int, const SkAlpha*) SK_OVERRIDE;
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virtual void xfer32(SkPMColor*, const SkPMColor*, int, const SkAlpha*) const SK_OVERRIDE;
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virtual void xferA8(SkAlpha*, const SkPMColor*, int, const SkAlpha*) const SK_OVERRIDE;
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SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkClearXfermode)
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@ -778,7 +776,7 @@ private:
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void SkClearXfermode::xfer32(SkPMColor* SK_RESTRICT dst,
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const SkPMColor* SK_RESTRICT, int count,
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const SkAlpha* SK_RESTRICT aa) {
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && count >= 0);
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if (NULL == aa) {
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@ -796,7 +794,7 @@ void SkClearXfermode::xfer32(SkPMColor* SK_RESTRICT dst,
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}
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void SkClearXfermode::xferA8(SkAlpha* SK_RESTRICT dst,
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const SkPMColor* SK_RESTRICT, int count,
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const SkAlpha* SK_RESTRICT aa) {
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && count >= 0);
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if (NULL == aa) {
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@ -819,8 +817,8 @@ class SkSrcXfermode : public SkProcCoeffXfermode {
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public:
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SkSrcXfermode(const ProcCoeff& rec) : SkProcCoeffXfermode(rec, kSrc_Mode) {}
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virtual void xfer32(SkPMColor*, const SkPMColor*, int, const SkAlpha*) SK_OVERRIDE;
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virtual void xferA8(SkAlpha*, const SkPMColor*, int, const SkAlpha*) SK_OVERRIDE;
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virtual void xfer32(SkPMColor*, const SkPMColor*, int, const SkAlpha*) const SK_OVERRIDE;
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virtual void xferA8(SkAlpha*, const SkPMColor*, int, const SkAlpha*) const SK_OVERRIDE;
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SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSrcXfermode)
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@ -832,7 +830,7 @@ private:
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void SkSrcXfermode::xfer32(SkPMColor* SK_RESTRICT dst,
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const SkPMColor* SK_RESTRICT src, int count,
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const SkAlpha* SK_RESTRICT aa) {
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && src && count >= 0);
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if (NULL == aa) {
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@ -851,7 +849,7 @@ void SkSrcXfermode::xfer32(SkPMColor* SK_RESTRICT dst,
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void SkSrcXfermode::xferA8(SkAlpha* SK_RESTRICT dst,
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const SkPMColor* SK_RESTRICT src, int count,
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const SkAlpha* SK_RESTRICT aa) {
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && src && count >= 0);
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if (NULL == aa) {
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@ -873,13 +871,13 @@ void SkSrcXfermode::xferA8(SkAlpha* SK_RESTRICT dst,
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}
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}
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////////////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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class SkDstInXfermode : public SkProcCoeffXfermode {
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public:
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SkDstInXfermode(const ProcCoeff& rec) : SkProcCoeffXfermode(rec, kDstIn_Mode) {}
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virtual void xfer32(SkPMColor*, const SkPMColor*, int, const SkAlpha*) SK_OVERRIDE;
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virtual void xfer32(SkPMColor*, const SkPMColor*, int, const SkAlpha*) const SK_OVERRIDE;
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SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDstInXfermode)
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@ -891,7 +889,7 @@ private:
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void SkDstInXfermode::xfer32(SkPMColor* SK_RESTRICT dst,
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const SkPMColor* SK_RESTRICT src, int count,
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const SkAlpha* SK_RESTRICT aa) {
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && src);
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if (count <= 0) {
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@ -909,13 +907,13 @@ void SkDstInXfermode::xfer32(SkPMColor* SK_RESTRICT dst,
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} while (--count != 0);
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}
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/////////////////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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class SkDstOutXfermode : public SkProcCoeffXfermode {
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public:
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SkDstOutXfermode(const ProcCoeff& rec) : SkProcCoeffXfermode(rec, kDstOut_Mode) {}
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virtual void xfer32(SkPMColor*, const SkPMColor*, int, const SkAlpha*) SK_OVERRIDE;
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virtual void xfer32(SkPMColor*, const SkPMColor*, int, const SkAlpha*) const SK_OVERRIDE;
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SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDstOutXfermode)
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@ -928,7 +926,7 @@ private:
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void SkDstOutXfermode::xfer32(SkPMColor* SK_RESTRICT dst,
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const SkPMColor* SK_RESTRICT src, int count,
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const SkAlpha* SK_RESTRICT aa) {
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const SkAlpha* SK_RESTRICT aa) const {
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SkASSERT(dst && src);
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if (count <= 0) {
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@ -1002,7 +1000,7 @@ bool SkXfermode::ModeAsCoeff(Mode mode, Coeff* src, Coeff* dst) {
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return true;
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}
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bool SkXfermode::AsMode(SkXfermode* xfer, Mode* mode) {
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bool SkXfermode::AsMode(const SkXfermode* xfer, Mode* mode) {
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if (NULL == xfer) {
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if (mode) {
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*mode = kSrcOver_Mode;
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@ -1012,14 +1010,14 @@ bool SkXfermode::AsMode(SkXfermode* xfer, Mode* mode) {
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return xfer->asMode(mode);
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}
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bool SkXfermode::AsCoeff(SkXfermode* xfer, Coeff* src, Coeff* dst) {
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bool SkXfermode::AsCoeff(const SkXfermode* xfer, Coeff* src, Coeff* dst) {
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if (NULL == xfer) {
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return ModeAsCoeff(kSrcOver_Mode, src, dst);
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}
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return xfer->asCoeff(src, dst);
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}
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bool SkXfermode::IsMode(SkXfermode* xfer, Mode mode) {
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bool SkXfermode::IsMode(const SkXfermode* xfer, Mode mode) {
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// if xfer==null then the mode is srcover
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Mode m = kSrcOver_Mode;
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if (xfer && !xfer->asMode(&m)) {
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@ -12,7 +12,7 @@ public:
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}
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virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]) SK_OVERRIDE;
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const SkAlpha aa[]) const SK_OVERRIDE;
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SK_DECLARE_UNFLATTENABLE_OBJECT()
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@ -48,7 +48,7 @@ static bool needsUnpremul(int alpha) {
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}
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void SkArithmeticMode_scalar::xfer32(SkPMColor dst[], const SkPMColor src[],
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int count, const SkAlpha aaCoverage[]) {
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int count, const SkAlpha aaCoverage[]) const {
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SkScalar k1 = fK[0] / 255;
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SkScalar k2 = fK[1];
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SkScalar k3 = fK[2];
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@ -1,4 +1,3 @@
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/*
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* Copyright 2006 The Android Open Source Project
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*
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@ -6,13 +5,11 @@
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* found in the LICENSE file.
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*/
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#include "SkAvoidXfermode.h"
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#include "SkColorPriv.h"
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#include "SkFlattenableBuffers.h"
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SkAvoidXfermode::SkAvoidXfermode(SkColor opColor, U8CPU tolerance, Mode mode)
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{
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SkAvoidXfermode::SkAvoidXfermode(SkColor opColor, U8CPU tolerance, Mode mode) {
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if (tolerance > 255) {
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tolerance = 255;
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}
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@ -23,15 +20,13 @@ SkAvoidXfermode::SkAvoidXfermode(SkColor opColor, U8CPU tolerance, Mode mode)
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}
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SkAvoidXfermode::SkAvoidXfermode(SkFlattenableReadBuffer& buffer)
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: INHERITED(buffer)
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{
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: INHERITED(buffer) {
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fOpColor = buffer.readColor();
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fDistMul = buffer.readUInt();
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fMode = (Mode)buffer.readUInt();
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}
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void SkAvoidXfermode::flatten(SkFlattenableWriteBuffer& buffer) const
|
||||
{
|
||||
void SkAvoidXfermode::flatten(SkFlattenableWriteBuffer& buffer) const {
|
||||
this->INHERITED::flatten(buffer);
|
||||
|
||||
buffer.writeColor(fOpColor);
|
||||
@ -40,8 +35,7 @@ void SkAvoidXfermode::flatten(SkFlattenableWriteBuffer& buffer) const
|
||||
}
|
||||
|
||||
// returns 0..31
|
||||
static unsigned color_dist16(uint16_t c, unsigned r, unsigned g, unsigned b)
|
||||
{
|
||||
static unsigned color_dist16(uint16_t c, unsigned r, unsigned g, unsigned b) {
|
||||
SkASSERT(r <= SK_R16_MASK);
|
||||
SkASSERT(g <= SK_G16_MASK);
|
||||
SkASSERT(b <= SK_B16_MASK);
|
||||
@ -54,8 +48,7 @@ static unsigned color_dist16(uint16_t c, unsigned r, unsigned g, unsigned b)
|
||||
}
|
||||
|
||||
// returns 0..15
|
||||
static unsigned color_dist4444(uint16_t c, unsigned r, unsigned g, unsigned b)
|
||||
{
|
||||
static unsigned color_dist4444(uint16_t c, unsigned r, unsigned g, unsigned b) {
|
||||
SkASSERT(r <= 0xF);
|
||||
SkASSERT(g <= 0xF);
|
||||
SkASSERT(b <= 0xF);
|
||||
@ -68,8 +61,7 @@ static unsigned color_dist4444(uint16_t c, unsigned r, unsigned g, unsigned b)
|
||||
}
|
||||
|
||||
// returns 0..255
|
||||
static unsigned color_dist32(SkPMColor c, U8CPU r, U8CPU g, U8CPU b)
|
||||
{
|
||||
static unsigned color_dist32(SkPMColor c, U8CPU r, U8CPU g, U8CPU b) {
|
||||
SkASSERT(r <= 0xFF);
|
||||
SkASSERT(g <= 0xFF);
|
||||
SkASSERT(b <= 0xFF);
|
||||
@ -81,8 +73,7 @@ static unsigned color_dist32(SkPMColor c, U8CPU r, U8CPU g, U8CPU b)
|
||||
return SkMax32(dr, SkMax32(dg, db));
|
||||
}
|
||||
|
||||
static int scale_dist_14(int dist, uint32_t mul, uint32_t sub)
|
||||
{
|
||||
static int scale_dist_14(int dist, uint32_t mul, uint32_t sub) {
|
||||
int tmp = dist * mul - sub;
|
||||
int result = (tmp + (1 << 13)) >> 14;
|
||||
|
||||
@ -94,8 +85,7 @@ static inline unsigned Accurate255To256(unsigned x) {
|
||||
}
|
||||
|
||||
void SkAvoidXfermode::xfer32(SkPMColor dst[], const SkPMColor src[], int count,
|
||||
const SkAlpha aa[])
|
||||
{
|
||||
const SkAlpha aa[]) const {
|
||||
unsigned opR = SkColorGetR(fOpColor);
|
||||
unsigned opG = SkColorGetG(fOpColor);
|
||||
unsigned opB = SkColorGetB(fOpColor);
|
||||
@ -134,8 +124,7 @@ void SkAvoidXfermode::xfer32(SkPMColor dst[], const SkPMColor src[], int count,
|
||||
}
|
||||
}
|
||||
|
||||
static inline U16CPU SkBlend3216(SkPMColor src, U16CPU dst, unsigned scale)
|
||||
{
|
||||
static inline U16CPU SkBlend3216(SkPMColor src, U16CPU dst, unsigned scale) {
|
||||
SkASSERT(scale <= 32);
|
||||
scale <<= 3;
|
||||
|
||||
@ -145,8 +134,7 @@ static inline U16CPU SkBlend3216(SkPMColor src, U16CPU dst, unsigned scale)
|
||||
}
|
||||
|
||||
void SkAvoidXfermode::xfer16(uint16_t dst[], const SkPMColor src[], int count,
|
||||
const SkAlpha aa[])
|
||||
{
|
||||
const SkAlpha aa[]) const {
|
||||
unsigned opR = SkColorGetR(fOpColor) >> (8 - SK_R16_BITS);
|
||||
unsigned opG = SkColorGetG(fOpColor) >> (8 - SK_G16_BITS);
|
||||
unsigned opB = SkColorGetB(fOpColor) >> (8 - SK_R16_BITS);
|
||||
@ -186,8 +174,7 @@ void SkAvoidXfermode::xfer16(uint16_t dst[], const SkPMColor src[], int count,
|
||||
}
|
||||
|
||||
void SkAvoidXfermode::xfer4444(uint16_t dst[], const SkPMColor src[], int count,
|
||||
const SkAlpha aa[])
|
||||
{
|
||||
const SkAlpha aa[]) const {
|
||||
unsigned opR = SkColorGetR(fOpColor) >> 4;
|
||||
unsigned opG = SkColorGetG(fOpColor) >> 4;
|
||||
unsigned opB = SkColorGetB(fOpColor) >> 4;
|
||||
@ -226,7 +213,7 @@ void SkAvoidXfermode::xfer4444(uint16_t dst[], const SkPMColor src[], int count,
|
||||
}
|
||||
}
|
||||
|
||||
void SkAvoidXfermode::xferA8(SkAlpha dst[], const SkPMColor src[], int count, const SkAlpha aa[])
|
||||
{
|
||||
void SkAvoidXfermode::xferA8(SkAlpha dst[], const SkPMColor src[], int count,
|
||||
const SkAlpha aa[]) const {
|
||||
// override in subclass
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user