| #include "SampleCode.h" |
| #include "SkView.h" |
| #include "SkCanvas.h" |
| |
| #include "SkAnimator.h" |
| #include "SkStream.h" |
| |
| #include "SkColorPriv.h" |
| static inline void Filter_32_opaque_portable(unsigned x, unsigned y, |
| SkPMColor a00, SkPMColor a01, |
| SkPMColor a10, SkPMColor a11, |
| SkPMColor* dstColor) { |
| SkASSERT((unsigned)x <= 0xF); |
| SkASSERT((unsigned)y <= 0xF); |
| |
| int xy = x * y; |
| uint32_t mask = gMask_00FF00FF; //0xFF00FF; |
| |
| int scale = 256 - 16*y - 16*x + xy; |
| uint32_t lo = (a00 & mask) * scale; |
| uint32_t hi = ((a00 >> 8) & mask) * scale; |
| |
| scale = 16*x - xy; |
| lo += (a01 & mask) * scale; |
| hi += ((a01 >> 8) & mask) * scale; |
| |
| scale = 16*y - xy; |
| lo += (a10 & mask) * scale; |
| hi += ((a10 >> 8) & mask) * scale; |
| |
| lo += (a11 & mask) * xy; |
| hi += ((a11 >> 8) & mask) * xy; |
| |
| *dstColor = ((lo >> 8) & mask) | (hi & ~mask); |
| } |
| |
| static void test_filter() { |
| for (int r = 0; r <= 0xFF; r++) { |
| SkPMColor c = SkPackARGB32(0xFF, r, r, r); |
| for (int y = 0; y <= 0xF; y++) { |
| for (int x = 0; x <= 0xF; x++) { |
| SkPMColor dst; |
| Filter_32_opaque_portable(x, y, c, c, c, c, &dst); |
| SkASSERT(SkGetPackedA32(dst) == 255); |
| } |
| } |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| class SkAnimatorView : public SkView { |
| public: |
| SkAnimatorView(); |
| virtual ~SkAnimatorView(); |
| |
| void setURIBase(const char dir[]); |
| |
| SkAnimator* getAnimator() const { return fAnimator; } |
| |
| bool decodeFile(const char path[]); |
| bool decodeMemory(const void* buffer, size_t size); |
| bool decodeStream(SkStream* stream); |
| |
| protected: |
| // overrides |
| virtual void onDraw(SkCanvas*); |
| |
| private: |
| SkString fBaseURI; |
| SkAnimator* fAnimator; |
| |
| typedef SkView INHERITED; |
| }; |
| |
| SkAnimatorView::SkAnimatorView() : fAnimator(NULL) { |
| test_filter(); |
| } |
| |
| SkAnimatorView::~SkAnimatorView() { |
| delete fAnimator; |
| } |
| |
| void SkAnimatorView::setURIBase(const char dir[]) { |
| fBaseURI.set(dir); |
| } |
| |
| bool SkAnimatorView::decodeFile(const char path[]) { |
| SkFILEStream* is = new SkFILEStream(path); |
| SkAutoUnref aur(is); |
| return is->isValid() && this->decodeStream(is); |
| } |
| |
| bool SkAnimatorView::decodeMemory(const void* buffer, size_t size) { |
| SkMemoryStream* is = new SkMemoryStream(buffer, size); |
| SkAutoUnref aur(is); |
| return this->decodeStream(is); |
| } |
| |
| bool SkAnimatorView::decodeStream(SkStream* stream) { |
| delete fAnimator; |
| fAnimator = new SkAnimator; |
| fAnimator->setURIBase(fBaseURI.c_str()); |
| if (!fAnimator->decodeStream(stream)) { |
| delete fAnimator; |
| fAnimator = NULL; |
| return false; |
| } |
| return true; |
| } |
| |
| #include "SkTime.h" |
| |
| void SkAnimatorView::onDraw(SkCanvas* canvas) { |
| if (fAnimator) { |
| canvas->drawColor(SK_ColorWHITE); |
| fAnimator->draw(canvas, 0); |
| |
| canvas->save(); |
| canvas->translate(120, 30); |
| canvas->scale(0.5, 0.5); |
| fAnimator->draw(canvas, 0); |
| canvas->restore(); |
| |
| canvas->save(); |
| canvas->translate(190, 40); |
| canvas->scale(0.25, 0.25); |
| fAnimator->draw(canvas, 0); |
| canvas->restore(); |
| |
| this->inval(NULL); |
| } |
| } |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static SkView* MyFactory() { |
| SkAnimatorView* av = new SkAnimatorView; |
| // av->decodeFile("/skimages/test.xml"); |
| av->setURIBase("/skia/trunk/animations/"); |
| av->decodeFile("/skia/trunk/animations/checkbox.xml"); |
| return av; |
| } |
| |
| static SkViewRegister reg(MyFactory); |
| |