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Add translate & scale optimizations

Browse Source 
https://codereview.appspot.com/7571045/



git-svn-id: http://skia.googlecode.com/svn/trunk@8182 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
robertphillips@google.com 2013-03-17 18:46:16 +00:00
parent 91217d0b0c
commit 9105ad0f85
2 changed files with 51 additions and 0 deletions
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8
debugger/SkDrawCommand.h
View File

@ -408,6 +408,10 @@ class Scale : public SkDrawCommand {
public:
Scale(SkScalar sx, SkScalar sy);
virtual void execute(SkCanvas* canvas) SK_OVERRIDE;
SkScalar x() const { return fSx; }
SkScalar y() const { return fSy; }
private:
SkScalar fSx;
SkScalar fSy;
@ -434,6 +438,10 @@ class Translate : public SkDrawCommand {
public:
Translate(SkScalar dx, SkScalar dy);
virtual void execute(SkCanvas* canvas) SK_OVERRIDE;
SkScalar x() const { return fDx; }
SkScalar y() const { return fDy; }
private:
SkScalar fDx;
SkScalar fDy;

43
tools/filtermain.cpp
View File

@ -280,6 +280,47 @@ static void apply_4(SkTDArray<SkDrawCommand*>& commands, int curCommand) {
restore->setVisible(false);
}
// Check for:
// TRANSLATE
// where the translate is zero
static bool check_5(const SkTDArray<SkDrawCommand*>& commands, int curCommand) {
if (TRANSLATE != commands[curCommand]->getType()) {
return false;
}
Translate* t = (Translate*) commands[curCommand];
return 0 == t->x() && 0 == t->y();
}
// Just remove the translate
static void apply_5(SkTDArray<SkDrawCommand*>& commands, int curCommand) {
Translate* t = (Translate*) commands[curCommand];
t->setVisible(false);
}
// Check for:
// SCALE
// where the scale is 1,1
static bool check_6(const SkTDArray<SkDrawCommand*>& commands, int curCommand) {
if (SCALE != commands[curCommand]->getType()) {
return false;
}
Scale* s = (Scale*) commands[curCommand];
return SK_Scalar1 == s->x() && SK_Scalar1 == s->y();
}
// Just remove the scale
static void apply_6(SkTDArray<SkDrawCommand*>& commands, int curCommand) {
Scale* s = (Scale*) commands[curCommand];
s->setVisible(false);
}
typedef bool (*PFCheck)(const SkTDArray<SkDrawCommand*>& commands, int curCommand);
typedef void (*PFApply)(SkTDArray<SkDrawCommand*>& commands, int curCommand);
@ -293,6 +334,8 @@ struct OptTableEntry {
{ check_2, apply_2, 0 },
{ check_3, apply_3, 0 },
{ check_4, apply_4, 0 },
{ check_5, apply_5, 0 },
{ check_6, apply_6, 0 },
};
static int filter_picture(const SkString& inFile, const SkString& outFile) {