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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkAnimatorScript2.h"
#include "SkAnimateBase.h"
#include "SkAnimateMaker.h"
#include "SkDisplayTypes.h"
#include "SkExtras.h"
#include "SkMemberInfo.h"
#include "SkOpArray.h"
#include "SkParse.h"
#include "SkScript2.h"
#include "SkScriptCallBack.h"
static const SkDisplayEnumMap gEnumMaps[] = {
{ SkType_AddMode, "indirect|immediate" },
{ SkType_Align, "left|center|right" },
{ SkType_ApplyMode, "immediate|once" },
{ SkType_ApplyTransition, "reverse" },
{ SkType_BitmapEncoding, "jpeg|png" },
{ SkType_BitmapFormat, "none|A1|A8|Index8|RGB16|RGB32" },
{ SkType_Boolean, "false|true" },
{ SkType_Cap, "butt|round|square" },
{ SkType_EventCode, "none|up|down|left|right|back|end|OK|send|leftSoftKey|rightSoftKey|key0|key1|key2|key3|key4|key5|key6|key7|key8|key9|star|hash" },
{ SkType_EventKind, "none|keyChar|keyPress|mouseDown|mouseDrag|mouseMove|mouseUp|onEnd|onLoad|user" },
{ SkType_EventMode, "deferred|immediate" },
{ SkType_FillType, "winding|evenOdd" },
{ SkType_FilterType, "none|bilinear" },
{ SkType_FromPathMode, "normal|angle|position" },
{ SkType_Join, "miter|round|blunt" },
{ SkType_MaskFilterBlurStyle, "normal|solid|outer|inner" },
{ SkType_PathDirection, "cw|ccw" },
{ SkType_Style, "fill|stroke|strokeAndFill" },
{ SkType_TextBoxAlign, "start|center|end" },
{ SkType_TextBoxMode, "oneLine|lineBreak" },
{ SkType_TileMode, "clamp|repeat|mirror" },
{ SkType_Xfermode, "clear|src|dst|srcOver|dstOver|srcIn|dstIn|srcOut|dstOut|"
"srcATop|dstATop|xor|darken|lighten" },
};
static int gEnumMapCount = SK_ARRAY_COUNT(gEnumMaps);
class SkAnimatorScript_Box : public SkScriptCallBackConvert {
public:
SkAnimatorScript_Box() {}
~SkAnimatorScript_Box() {
for (SkDisplayable** dispPtr = fTrackDisplayable.begin(); dispPtr < fTrackDisplayable.end(); dispPtr++)
delete *dispPtr;
}
virtual bool convert(SkOperand2::OpType type, SkOperand2* operand) {
SkDisplayable* displayable;
switch (type) {
case SkOperand2::kArray: {
SkDisplayArray* boxedValue = new SkDisplayArray(*operand->fArray);
displayable = boxedValue;
} break;
case SkOperand2::kS32: {
SkDisplayInt* boxedValue = new SkDisplayInt;
displayable = boxedValue;
boxedValue->value = operand->fS32;
} break;
case SkOperand2::kScalar: {
SkDisplayFloat* boxedValue = new SkDisplayFloat;
displayable = boxedValue;
boxedValue->value = operand->fScalar;
} break;
case SkOperand2::kString: {
SkDisplayString* boxedValue = new SkDisplayString(*operand->fString);
displayable = boxedValue;
} break;
case SkOperand2::kObject:
return true;
default:
SkASSERT(0);
return false;
}
track(displayable);
operand->fObject = (void*) displayable;
return true;
}
virtual SkOperand2::OpType getReturnType(int index) {
return SkOperand2::kObject;
}
virtual Type getType() const {
return kBox;
}
void track(SkDisplayable* displayable) {
SkASSERT(fTrackDisplayable.find(displayable) < 0);
*fTrackDisplayable.append() = displayable;
}
SkTDDisplayableArray fTrackDisplayable;
};
class SkAnimatorScript_Enum : public SkScriptCallBackProperty {
public:
SkAnimatorScript_Enum(const char* tokens) : fTokens(tokens) {}
virtual bool getConstValue(const char* name, int len, SkOperand2* value) {
return SkAnimatorScript2::MapEnums(fTokens, name, len, &value->fS32);
}
private:
const char* fTokens;
};
// !!! if type is string, call invoke
// if any other type, return original value
// distinction is undone: could do this by returning index == 0 only if param is string
// still, caller of getParamTypes will attempt to convert param to string (I guess)
class SkAnimatorScript_Eval : public SkScriptCallBackFunction {
public:
SkAnimatorScript_Eval(SkAnimatorScript2* engine) : fEngine(engine) {}
virtual bool getIndex(const char* name, int len, size_t* result) {
if (SK_LITERAL_STR_EQUAL("eval", name, len) != 0)
return false;
*result = 0;
return true;
}
virtual void getParamTypes(SkIntArray(SkOperand2::OpType)* types) {
types->setCount(1);
SkOperand2::OpType* type = types->begin();
type[0] = SkOperand2::kString;
}
virtual bool invoke(size_t index, SkOpArray* params, SkOperand2* answer) {
SkAnimatorScript2 engine(fEngine->getMaker(), fEngine->getWorking(),
SkAnimatorScript2::ToDisplayType(fEngine->getReturnType()));
SkOperand2* op = params->begin();
const char* script = op->fString->c_str();
SkScriptValue2 value;
return engine.evaluateScript(&script, &value);
SkASSERT(value.fType == fEngine->getReturnType());
*answer = value.fOperand;
// !!! incomplete ?
return true;
}
private:
SkAnimatorScript2* fEngine;
};
class SkAnimatorScript_ID : public SkScriptCallBackProperty {
public:
SkAnimatorScript_ID(SkAnimatorScript2* engine) : fEngine(engine) {}
virtual bool getIndex(const char* token, int len, size_t* result) {
SkDisplayable* displayable;
bool success = fEngine->getMaker().find(token, len, &displayable);
if (success == false) {
*result = 0;
} else {
*result = (size_t) displayable;
SkDisplayable* working = fEngine->getWorking();
if (displayable->canContainDependents() && working && working->isAnimate()) {
SkAnimateBase* animator = (SkAnimateBase*) working;
if (animator->isDynamic()) {
SkDisplayDepend* depend = (SkDisplayDepend* ) displayable;
depend->addDependent(working);
}
}
}
return true;
}
virtual bool getResult(size_t ref, SkOperand2* answer) {
answer->fObject = (void*) ref;
return true;
}
virtual SkOperand2::OpType getReturnType(size_t index) {
return index == 0 ? SkOperand2::kString : SkOperand2::kObject;
}
private:
SkAnimatorScript2* fEngine;
};
class SkAnimatorScript_Member : public SkScriptCallBackMember {
public:
SkAnimatorScript_Member(SkAnimatorScript2* engine) : fEngine(engine) {}
bool getMemberReference(const char* member, size_t len, void* object, SkScriptValue2* ref) {
SkDisplayable* displayable = (SkDisplayable*) object;
SkString name(member, len);
SkDisplayable* named = displayable->contains(name);
if (named) {
ref->fType = SkOperand2::kObject;
ref->fOperand.fObject = named;
return true;
}
const SkMemberInfo* info = displayable->getMember(name.c_str());
if (info == NULL)
return false; // !!! add additional error info?
ref->fType = SkAnimatorScript2::ToOpType(info->getType());
ref->fOperand.fObject = (void*) info;
return true;
}
bool invoke(size_t ref, void* object, SkOperand2* value) {
const SkMemberInfo* info = (const SkMemberInfo* ) ref;
SkDisplayable* displayable = (SkDisplayable*) object;
if (info->fType == SkType_MemberProperty) {
if (displayable->getProperty2(info->propertyIndex(), value) == false) {
return false;
}
}
return fEngine->evalMemberCommon(info, displayable, value);
}
SkAnimatorScript2* fEngine;
};
class SkAnimatorScript_MemberFunction : public SkScriptCallBackMemberFunction {
public:
SkAnimatorScript_MemberFunction(SkAnimatorScript2* engine) : fEngine(engine) {}
bool getMemberReference(const char* member, size_t len, void* object, SkScriptValue2* ref) {
SkDisplayable* displayable = (SkDisplayable*) object;
SkString name(member, len);
const SkMemberInfo* info = displayable->getMember(name.c_str());
if (info == NULL || info->fType != SkType_MemberFunction)
return false; // !!! add additional error info?
ref->fType = SkAnimatorScript2::ToOpType(info->getType());
ref->fOperand.fObject = (void*) info;
return true;
}
virtual void getParamTypes(SkIntArray(SkOperand2::OpType)* types) {
types->setCount(3);
SkOperand2::OpType* type = types->begin();
type[0] = type[1] = type[2] = SkOperand2::kS32;
}
bool invoke(size_t ref, void* object, SkOpArray* params, SkOperand2* value)
{
const SkMemberInfo* info = (const SkMemberInfo* ) ref;
SkDisplayable* displayable = (SkDisplayable*) object;
displayable->executeFunction2(displayable, info->functionIndex(), params, info->getType(),
value);
return fEngine->evalMemberCommon(info, displayable, value);
}
SkAnimatorScript2* fEngine;
};
class SkAnimatorScript_NamedColor : public SkScriptCallBackProperty {
public:
virtual bool getConstValue(const char* name, int len, SkOperand2* value) {
return SkParse::FindNamedColor(name, len, (SkColor*) &value->fS32) != NULL;
}
};
class SkAnimatorScript_RGB : public SkScriptCallBackFunction {
public:
virtual bool getIndex(const char* name, int len, size_t* result) {
if (SK_LITERAL_STR_EQUAL("rgb", name, len) != 0)
return false;
*result = 0;
return true;
}
virtual void getParamTypes(SkIntArray(SkOperand2::OpType)* types) {
types->setCount(3);
SkOperand2::OpType* type = types->begin();
type[0] = type[1] = type[2] = SkOperand2::kS32;
}
virtual bool invoke(size_t index, SkOpArray* params, SkOperand2* answer) {
SkASSERT(index == 0);
unsigned result = 0xFF000000;
int shift = 16;
for (int index = 0; index < 3; index++) {
result |= SkClampMax(params->begin()[index].fS32, 255) << shift;
shift -= 8;
}
answer->fS32 = result;
return true;
}
};
class SkAnimatorScript_Unbox : public SkScriptCallBackConvert {
public:
SkAnimatorScript_Unbox(SkAnimatorScript2* engine) : fEngine(engine) {}
virtual bool convert(SkOperand2::OpType type, SkOperand2* operand) {
SkASSERT(type == SkOperand2::kObject);
SkDisplayable* displayable = (SkDisplayable*) operand->fObject;
switch (displayable->getType()) {
case SkType_Array: {
SkDisplayArray* boxedValue = (SkDisplayArray*) displayable;
operand->fArray = new SkOpArray(SkAnimatorScript2::ToOpType(boxedValue->values.getType()));
int count = boxedValue->values.count();
operand->fArray->setCount(count);
memcpy(operand->fArray->begin(), boxedValue->values.begin(), count * sizeof(SkOperand2));
fEngine->track(operand->fArray);
} break;
case SkType_Boolean: {
SkDisplayBoolean* boxedValue = (SkDisplayBoolean*) displayable;
operand->fS32 = boxedValue->value;
} break;
case SkType_Int: {
SkDisplayInt* boxedValue = (SkDisplayInt*) displayable;
operand->fS32 = boxedValue->value;
} break;
case SkType_Float: {
SkDisplayFloat* boxedValue = (SkDisplayFloat*) displayable;
operand->fScalar = boxedValue->value;
} break;
case SkType_String: {
SkDisplayString* boxedValue = (SkDisplayString*) displayable;
operand->fString = SkNEW_ARGS(SkString, (boxedValue->value));
} break;
default: {
const char* id;
bool success = fEngine->getMaker().findKey(displayable, &id);
SkASSERT(success);
operand->fString = SkNEW_ARGS(SkString, (id));
}
}
return true;
}
virtual SkOperand2::OpType getReturnType(int /*index*/, SkOperand2* operand) {
SkDisplayable* displayable = (SkDisplayable*) operand->fObject;
switch (displayable->getType()) {
case SkType_Array:
return SkOperand2::kArray;
case SkType_Int:
return SkOperand2::kS32;
case SkType_Float:
return SkOperand2::kScalar;
case SkType_String:
default:
return SkOperand2::kString;
}
}
virtual Type getType() const {
return kUnbox;
}
SkAnimatorScript2* fEngine;
};
SkAnimatorScript2::SkAnimatorScript2(SkAnimateMaker& maker, SkDisplayable* working, SkDisplayTypes type) :
SkScriptEngine2(ToOpType(type)), fMaker(maker), fWorking(working) {
*fCallBackArray.append() = new SkAnimatorScript_Member(this);
*fCallBackArray.append() = new SkAnimatorScript_MemberFunction(this);
*fCallBackArray.append() = new SkAnimatorScript_Box();
*fCallBackArray.append() = new SkAnimatorScript_Unbox(this);
*fCallBackArray.append() = new SkAnimatorScript_ID(this);
if (type == SkType_ARGB) {
*fCallBackArray.append() = new SkAnimatorScript_RGB();
*fCallBackArray.append() = new SkAnimatorScript_NamedColor();
}
if (SkDisplayType::IsEnum(&maker, type)) {
// !!! for SpiderMonkey, iterate through the enum values, and map them to globals
const SkDisplayEnumMap& map = GetEnumValues(type);
*fCallBackArray.append() = new SkAnimatorScript_Enum(map.fValues);
}
*fCallBackArray.append() = new SkAnimatorScript_Eval(this);
#if 0 // !!! no extra support for now
for (SkExtras** extraPtr = maker.fExtras.begin(); extraPtr < maker.fExtras.end(); extraPtr++) {
SkExtras* extra = *extraPtr;
if (extra->fExtraCallBack)
*fCallBackArray.append() = new propertyCallBack(extra->fExtraCallBack, extra->fExtraStorage);
}
#endif
}
SkAnimatorScript2::~SkAnimatorScript2() {
SkScriptCallBack** end = fCallBackArray.end();
for (SkScriptCallBack** ptr = fCallBackArray.begin(); ptr < end; ptr++)
delete *ptr;
}
bool SkAnimatorScript2::evalMemberCommon(const SkMemberInfo* info,
SkDisplayable* displayable, SkOperand2* value) {
SkDisplayTypes original;
SkDisplayTypes type = original = (SkDisplayTypes) info->getType();
if (info->fType == SkType_Array)
type = SkType_Array;
switch (type) {
case SkType_ARGB:
type = SkType_Int;
case SkType_Boolean:
case SkType_Int:
case SkType_MSec:
case SkType_Float:
SkASSERT(info->getCount() == 1);
if (info->fType != SkType_MemberProperty && info->fType != SkType_MemberFunction)
value->fS32 = *(int32_t*) info->memberData(displayable); // OK for SkScalar too
if (type == SkType_MSec) {
value->fScalar = SkScalarDiv((SkScalar) value->fS32, 1000); // dividing two ints is the same as dividing two scalars
type = SkType_Float;
}
break;
case SkType_String: {
SkString* displayableString;
if (info->fType != SkType_MemberProperty && info->fType != SkType_MemberFunction) {
info->getString(displayable, &displayableString);
value->fString = new SkString(*displayableString);
}
} break;
case SkType_Array: {
SkASSERT(info->fType != SkType_MemberProperty); // !!! incomplete
SkTDOperandArray* displayableArray = (SkTDOperandArray*) info->memberData(displayable);
if (displayable->getType() == SkType_Array) {
SkDisplayArray* typedArray = (SkDisplayArray*) displayable;
original = typedArray->values.getType();
}
SkASSERT(original != SkType_Unknown);
SkOpArray* array = value->fArray = new SkOpArray(ToOpType(original));
track(array);
int count = displayableArray->count();
if (count > 0) {
array->setCount(count);
memcpy(array->begin(), displayableArray->begin(), count * sizeof(SkOperand2));
}
} break;
default:
SkASSERT(0); // unimplemented
}
return true;
}
const SkDisplayEnumMap& SkAnimatorScript2::GetEnumValues(SkDisplayTypes type) {
int index = SkTSearch<SkDisplayTypes>(&gEnumMaps[0].fType, gEnumMapCount, type,
sizeof(SkDisplayEnumMap));
SkASSERT(index >= 0);
return gEnumMaps[index];
}
SkDisplayTypes SkAnimatorScript2::ToDisplayType(SkOperand2::OpType type) {
int val = type;
switch (val) {
case SkOperand2::kNoType:
return SkType_Unknown;
case SkOperand2::kS32:
return SkType_Int;
case SkOperand2::kScalar:
return SkType_Float;
case SkOperand2::kString:
return SkType_String;
case SkOperand2::kArray:
return SkType_Array;
case SkOperand2::kObject:
return SkType_Displayable;
default:
SkASSERT(0);
return SkType_Unknown;
}
}
SkOperand2::OpType SkAnimatorScript2::ToOpType(SkDisplayTypes type) {
if (SkDisplayType::IsDisplayable(NULL /* fMaker */, type))
return SkOperand2::kObject;
if (SkDisplayType::IsEnum(NULL /* fMaker */, type))
return SkOperand2::kS32;
switch (type) {
case SkType_ARGB:
case SkType_MSec:
case SkType_Int:
return SkOperand2::kS32;
case SkType_Float:
case SkType_Point:
case SkType_3D_Point:
return SkOperand2::kScalar;
case SkType_Base64:
case SkType_DynamicString:
case SkType_String:
return SkOperand2::kString;
case SkType_Array:
return SkOperand2::kArray;
case SkType_Unknown:
return SkOperand2::kNoType;
default:
SkASSERT(0);
return SkOperand2::kNoType;
}
}
bool SkAnimatorScript2::MapEnums(const char* ptr, const char* match, size_t len, int* value) {
int index = 0;
bool more = true;
do {
const char* last = strchr(ptr, '|');
if (last == NULL) {
last = &ptr[strlen(ptr)];
more = false;
}
size_t length = last - ptr;
if (len == length && strncmp(ptr, match, length) == 0) {
*value = index;
return true;
}
index++;
ptr = last + 1;
} while (more);
return false;
}
#if defined SK_DEBUG
#include "SkAnimator.h"
static const char scriptTestSetup[] =
"<screenplay>"
"<apply>"
"<paint>"
"<emboss id='emboss' direction='[1,1,1]' />"
"</paint>"
"<animateField id='animation' field='direction' target='emboss' from='[1,1,1]' to='[-1,1,1]' dur='1'/>"
"<set lval='direction[0]' target='emboss' to='-1' />"
"</apply>"
"<color id='testColor' color='0 ? rgb(0,0,0) : rgb(255,255,255)' />"
"<color id='xColor' color='rgb(12,34,56)' />"
"<typedArray id='emptyArray' />"
"<typedArray id='intArray' values='[1, 4, 6]' />"
"<s32 id='idx' value='2' />"
"<s32 id='idy' value='2' />"
"<string id='alpha' value='abc' />"
"<rectangle id='testRect' left='Math.cos(0)' top='2' right='12' bottom='5' />"
"<event id='evt'>"
"<input name='x' />"
"<apply scope='idy'>"
"<set field='value' to='evt.x.s32' />"
"</apply>"
"</event>"
"</screenplay>";
static const SkScriptNAnswer scriptTests[] = {
{ "alpha+alpha", SkType_String, 0, 0, "abcabc" },
{ "0 ? Math.sin(0) : 1", SkType_Int, 1 },
{ "intArray[4]", SkType_Unknown },
{ "emptyArray[4]", SkType_Unknown },
{ "idx", SkType_Int, 2 },
{ "intArray.length", SkType_Int, 3 },
{ "intArray.values[0]", SkType_Int, 1 },
{ "intArray[0]", SkType_Int, 1 },
{ "idx.value", SkType_Int, 2 },
{ "alpha.value", SkType_String, 0, 0, "abc" },
{ "alpha", SkType_String, 0, 0, "abc" },
{ "alpha.value+alpha.value", SkType_String, 0, 0, "abcabc" },
{ "alpha+idx", SkType_String, 0, 0, "abc2" },
{ "idx+alpha", SkType_String, 0, 0, "2abc" },
{ "intArray[idx]", SkType_Int, 6 },
{ "alpha.slice(1,2)", SkType_String, 0, 0, "b" },
{ "alpha.value.slice(1,2)", SkType_String, 0, 0, "b" },
{ "Math.sin(0)", SkType_Float, 0, SkIntToScalar(0) },
{ "testRect.left+2", SkType_Float, 0, SkIntToScalar(3) },
{ "0 ? intArray[0] : 1", SkType_Int, 1 },
{ "0 ? intArray.values[0] : 1", SkType_Int, 1 },
{ "0 ? idx : 1", SkType_Int, 1 },
{ "0 ? idx.value : 1", SkType_Int, 1 },
{ "0 ? alpha.slice(1,2) : 1", SkType_Int, 1 },
{ "0 ? alpha.value.slice(1,2) : 1", SkType_Int, 1 },
{ "idy", SkType_Int, 3 }
};
#define SkScriptNAnswer_testCount SK_ARRAY_COUNT(scriptTests)
void SkAnimatorScript2::UnitTest() {
#if defined(SK_SUPPORT_UNITTEST)
SkAnimator animator;
SkASSERT(animator.decodeMemory(scriptTestSetup, sizeof(scriptTestSetup)-1));
SkEvent evt;
evt.setString("id", "evt");
evt.setS32("x", 3);
animator.doUserEvent(evt);
// set up animator with memory script above, then run value tests
for (int index = 0; index < SkScriptNAnswer_testCount; index++) {
SkAnimatorScript2 engine(*animator.fMaker, NULL, scriptTests[index].fType);
SkScriptValue2 value;
const char* script = scriptTests[index].fScript;
bool success = engine.evaluateScript(&script, &value);
if (success == false) {
SkASSERT(scriptTests[index].fType == SkType_Unknown);
continue;
}
SkASSERT(value.fType == ToOpType(scriptTests[index].fType));
SkScalar error;
switch (value.fType) {
case SkOperand2::kS32:
SkASSERT(value.fOperand.fS32 == scriptTests[index].fIntAnswer);
break;
case SkOperand2::kScalar:
error = SkScalarAbs(value.fOperand.fScalar - scriptTests[index].fScalarAnswer);
SkASSERT(error < SK_Scalar1 / 10000);
break;
case SkOperand2::kString:
SkASSERT(value.fOperand.fString->equals(scriptTests[index].fStringAnswer));
break;
default:
SkASSERT(0);
}
}
#endif
}
#endif