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- /*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "include/core/SkCanvas.h"
- #include "include/core/SkPicture.h"
- #include "src/core/SkPictureFlat.h"
- #include "src/core/SkPictureRecord.h"
- #include "tests/Test.h"
- #include "tools/debugger/DebugCanvas.h"
- // This test exercises the Matrix/Clip State collapsing system. It generates
- // example skps and the compares the actual stored operations to the expected
- // operations. The test works by emitting canvas operations at three levels:
- // overall structure, bodies that draw something and model/clip state changes.
- //
- // Structure methods only directly emit save and restores but call the
- // ModelClip and Body helper methods to fill in the structure. Since they only
- // emit saves and restores the operations emitted by the structure methods will
- // be completely removed by the matrix/clip collapse. Note: every save in
- // a structure method is followed by a call to a ModelClip helper.
- //
- // Body methods only directly emit draw ops and saveLayer/restore pairs but call
- // the ModelClip helper methods. Since the body methods emit the ops that cannot
- // be collapsed (i.e., draw ops, saveLayer/restore) they also generate the
- // expected result information. Note: every saveLayer in a body method is
- // followed by a call to a ModelClip helper.
- //
- // The ModelClip methods output matrix and clip ops in various orders and
- // combinations. They contribute to the expected result by outputting the
- // expected matrix & clip ops. Note that, currently, the entire clip stack
- // is output for each MC state so the clip operations accumulate down the
- // save/restore stack.
- // TODOs:
- // check on clip offsets
- // - not sure if this is possible. The desire is to verify that the clip
- // operations' offsets point to the correct follow-on operations. This
- // could be difficult since there is no good way to communicate the
- // offset stored in the SkPicture to the debugger's clip objects
- // add comparison of rendered before & after images?
- // - not sure if this would be useful since it somewhat duplicates the
- // correctness test of running render_pictures in record mode and
- // rendering before and after images. Additionally the matrix/clip collapse
- // is sure to cause some small differences so an automated test might
- // yield too many false positives.
- // run the matrix/clip collapse system on the 10K skp set
- // - this should give us warm fuzzies that the matrix clip collapse
- // system is ready for prime time
- // bench the recording times with/without matrix/clip collapsing
- #ifdef SK_COLLAPSE_MATRIX_CLIP_STATE
- // Enable/disable debugging helper code
- //#define TEST_COLLAPSE_MATRIX_CLIP_STATE 1
- // Extract the command ops from the input SkPicture
- static void gets_ops(SkPicture& input, SkTDArray<DrawType>* ops) {
- DebugCanvas debugCanvas(input.width(), input.height());
- debugCanvas.setBounds(input.width(), input.height());
- input.draw(&debugCanvas);
- ops->setCount(debugCanvas.getSize());
- for (int i = 0; i < debugCanvas.getSize(); ++i) {
- (*ops)[i] = debugCanvas.getDrawCommandAt(i)->getType();
- }
- }
- enum ClipType {
- kNone_ClipType,
- kRect_ClipType,
- kRRect_ClipType,
- kPath_ClipType,
- kRegion_ClipType,
- kLast_ClipType = kRRect_ClipType
- };
- static const int kClipTypeCount = kLast_ClipType + 1;
- enum MatType {
- kNone_MatType,
- kTranslate_MatType,
- kScale_MatType,
- kSkew_MatType,
- kRotate_MatType,
- kConcat_MatType,
- kSetMatrix_MatType,
- kLast_MatType = kScale_MatType
- };
- static const int kMatTypeCount = kLast_MatType + 1;
- // TODO: implement the rest of the draw ops
- enum DrawOpType {
- kNone_DrawOpType,
- #if 0
- kBitmap_DrawOpType,
- kBitmapMatrix_DrawOpType,
- kBitmapNone_DrawOpType,
- kBitmapRectToRect_DrawOpType,
- #endif
- kClear_DrawOpType,
- #if 0
- kData_DrawOpType,
- #endif
- kOval_DrawOpType,
- #if 0
- kPaint_DrawOpType,
- kPath_DrawOpType,
- kPicture_DrawOpType,
- kPoints_DrawOpType,
- kPosText_DrawOpType,
- kPosTextTopBottom_DrawOpType,
- kPosTextH_DrawOpType,
- kPosTextHTopBottom_DrawOpType,
- #endif
- kRect_DrawOpType,
- kRRect_DrawOpType,
- #if 0
- kSprite_DrawOpType,
- kText_DrawOpType,
- kTextOnPath_DrawOpType,
- kTextTopBottom_DrawOpType,
- kDrawVertices_DrawOpType,
- #endif
- kLastNonSaveLayer_DrawOpType = kRect_DrawOpType,
- // saveLayer's have to handled apart from the other draw operations
- // since they also alter the save/restore structure.
- kSaveLayer_DrawOpType,
- };
- static const int kNonSaveLayerDrawOpTypeCount = kLastNonSaveLayer_DrawOpType + 1;
- typedef void (*PFEmitMC)(SkCanvas* canvas, MatType mat, ClipType clip,
- DrawOpType draw, SkTDArray<DrawType>* expected,
- int accumulatedClips);
- typedef void (*PFEmitBody)(SkCanvas* canvas, PFEmitMC emitMC, MatType mat,
- ClipType clip, DrawOpType draw,
- SkTDArray<DrawType>* expected, int accumulatedClips);
- typedef void (*PFEmitStruct)(SkCanvas* canvas, PFEmitMC emitMC, MatType mat,
- ClipType clip, PFEmitBody emitBody, DrawOpType draw,
- SkTDArray<DrawType>* expected);
- //////////////////////////////////////////////////////////////////////////////
- // TODO: expand the testing to include the different ops & AA types!
- static void emit_clip(SkCanvas* canvas, ClipType clip) {
- switch (clip) {
- case kNone_ClipType:
- break;
- case kRect_ClipType: {
- SkRect r = SkRect::MakeLTRB(10, 10, 90, 90);
- canvas->clipRect(r, SkRegion::kIntersect_Op, true);
- break;
- }
- case kRRect_ClipType: {
- SkRect r = SkRect::MakeLTRB(10, 10, 90, 90);
- SkRRect rr;
- rr.setRectXY(r, 10, 10);
- canvas->clipRRect(rr, SkRegion::kIntersect_Op, true);
- break;
- }
- case kPath_ClipType: {
- SkPath p;
- p.moveTo(5.0f, 5.0f);
- p.lineTo(50.0f, 50.0f);
- p.lineTo(100.0f, 5.0f);
- p.close();
- canvas->clipPath(p, SkRegion::kIntersect_Op, true);
- break;
- }
- case kRegion_ClipType: {
- SkIRect rects[2] = {
- { 1, 1, 55, 55 },
- { 45, 45, 99, 99 },
- };
- SkRegion r;
- r.setRects(rects, 2);
- canvas->clipRegion(r, SkRegion::kIntersect_Op);
- break;
- }
- default:
- SkASSERT(0);
- }
- }
- static void add_clip(ClipType clip, MatType mat, SkTDArray<DrawType>* expected) {
- if (nullptr == expected) {
- // expected is nullptr if this clip will be fused into later clips
- return;
- }
- switch (clip) {
- case kNone_ClipType:
- break;
- case kRect_ClipType:
- *expected->append() = CONCAT;
- *expected->append() = CLIP_RECT;
- break;
- case kRRect_ClipType:
- *expected->append() = CONCAT;
- *expected->append() = CLIP_RRECT;
- break;
- case kPath_ClipType:
- *expected->append() = CONCAT;
- *expected->append() = CLIP_PATH;
- break;
- case kRegion_ClipType:
- *expected->append() = CONCAT;
- *expected->append() = CLIP_REGION;
- break;
- default:
- SkASSERT(0);
- }
- }
- static void emit_mat(SkCanvas* canvas, MatType mat) {
- switch (mat) {
- case kNone_MatType:
- break;
- case kTranslate_MatType:
- canvas->translate(5.0f, 5.0f);
- break;
- case kScale_MatType:
- canvas->scale(1.1f, 1.1f);
- break;
- case kSkew_MatType:
- canvas->skew(1.1f, 1.1f);
- break;
- case kRotate_MatType:
- canvas->rotate(1.0f);
- break;
- case kConcat_MatType: {
- SkMatrix m;
- m.setTranslate(1.0f, 1.0f);
- canvas->concat(m);
- break;
- }
- case kSetMatrix_MatType: {
- SkMatrix m;
- m.setTranslate(1.0f, 1.0f);
- canvas->setMatrix(m);
- break;
- }
- default:
- SkASSERT(0);
- }
- }
- static void add_mat(MatType mat, SkTDArray<DrawType>* expected) {
- if (nullptr == expected) {
- // expected is nullptr if this matrix call will be fused into later ones
- return;
- }
- switch (mat) {
- case kNone_MatType:
- break;
- case kTranslate_MatType: // fall thru
- case kScale_MatType: // fall thru
- case kSkew_MatType: // fall thru
- case kRotate_MatType: // fall thru
- case kConcat_MatType: // fall thru
- case kSetMatrix_MatType:
- // TODO: this system currently converts a setMatrix to concat. If we wanted to
- // really preserve the setMatrix semantics we should keep it a setMatrix. I'm
- // not sure if this is a good idea though since this would keep things like pinch
- // zoom from working.
- *expected->append() = CONCAT;
- break;
- default:
- SkASSERT(0);
- }
- }
- static void emit_draw(SkCanvas* canvas, DrawOpType draw, SkTDArray<DrawType>* expected) {
- switch (draw) {
- case kNone_DrawOpType:
- break;
- case kClear_DrawOpType:
- canvas->clear(SK_ColorRED);
- *expected->append() = DRAW_CLEAR;
- break;
- case kOval_DrawOpType: {
- SkRect r = SkRect::MakeLTRB(10, 10, 90, 90);
- SkPaint p;
- canvas->drawOval(r, p);
- *expected->append() = DRAW_OVAL;
- break;
- }
- case kRect_DrawOpType: {
- SkRect r = SkRect::MakeLTRB(10, 10, 90, 90);
- SkPaint p;
- canvas->drawRect(r, p);
- *expected->append() = DRAW_RECT;
- break;
- }
- case kRRect_DrawOpType: {
- SkRect r = SkRect::MakeLTRB(10.0f, 10.0f, 90.0f, 90.0f);
- SkRRect rr;
- rr.setRectXY(r, 5.0f, 5.0f);
- SkPaint p;
- canvas->drawRRect(rr, p);
- *expected->append() = DRAW_RRECT;
- break;
- }
- default:
- SkASSERT(0);
- }
- }
- //////////////////////////////////////////////////////////////////////////////
- // Emit:
- // clip
- // matrix
- // Simple case - the clip isn't effect by the matrix
- static void emit_clip_and_mat(SkCanvas* canvas, MatType mat, ClipType clip,
- DrawOpType draw, SkTDArray<DrawType>* expected,
- int accumulatedClips) {
- emit_clip(canvas, clip);
- emit_mat(canvas, mat);
- if (kNone_DrawOpType == draw) {
- return;
- }
- for (int i = 0; i < accumulatedClips; ++i) {
- add_clip(clip, mat, expected);
- }
- add_mat(mat, expected);
- }
- // Emit:
- // matrix
- // clip
- // Emitting the matrix first is more challenging since the matrix has to be
- // pushed across (i.e., applied to) the clip.
- static void emit_mat_and_clip(SkCanvas* canvas, MatType mat, ClipType clip,
- DrawOpType draw, SkTDArray<DrawType>* expected,
- int accumulatedClips) {
- emit_mat(canvas, mat);
- emit_clip(canvas, clip);
- if (kNone_DrawOpType == draw) {
- return;
- }
- // the matrix & clip order will be reversed once collapsed!
- for (int i = 0; i < accumulatedClips; ++i) {
- add_clip(clip, mat, expected);
- }
- add_mat(mat, expected);
- }
- // Emit:
- // matrix
- // clip
- // matrix
- // clip
- // This tests that the matrices and clips coalesce when collapsed
- static void emit_double_mat_and_clip(SkCanvas* canvas, MatType mat, ClipType clip,
- DrawOpType draw, SkTDArray<DrawType>* expected,
- int accumulatedClips) {
- emit_mat(canvas, mat);
- emit_clip(canvas, clip);
- emit_mat(canvas, mat);
- emit_clip(canvas, clip);
- if (kNone_DrawOpType == draw) {
- return;
- }
- for (int i = 0; i < accumulatedClips; ++i) {
- add_clip(clip, mat, expected);
- add_clip(clip, mat, expected);
- }
- add_mat(mat, expected);
- }
- // Emit:
- // matrix
- // clip
- // clip
- // This tests accumulation of clips in same transform state. It also tests pushing
- // of the matrix across both the clips.
- static void emit_mat_clip_clip(SkCanvas* canvas, MatType mat, ClipType clip,
- DrawOpType draw, SkTDArray<DrawType>* expected,
- int accumulatedClips) {
- emit_mat(canvas, mat);
- emit_clip(canvas, clip);
- emit_clip(canvas, clip);
- if (kNone_DrawOpType == draw) {
- return;
- }
- for (int i = 0; i < accumulatedClips; ++i) {
- add_clip(clip, mat, expected);
- add_clip(clip, mat, expected);
- }
- add_mat(mat, expected);
- }
- //////////////////////////////////////////////////////////////////////////////
- // Emit:
- // matrix & clip calls
- // draw op
- static void emit_body0(SkCanvas* canvas, PFEmitMC emitMC, MatType mat,
- ClipType clip, DrawOpType draw,
- SkTDArray<DrawType>* expected, int accumulatedClips) {
- bool needsSaveRestore = kNone_DrawOpType != draw &&
- (kNone_MatType != mat || kNone_ClipType != clip);
- if (needsSaveRestore) {
- *expected->append() = SAVE;
- }
- (*emitMC)(canvas, mat, clip, draw, expected, accumulatedClips+1);
- emit_draw(canvas, draw, expected);
- if (needsSaveRestore) {
- *expected->append() = RESTORE;
- }
- }
- // Emit:
- // matrix & clip calls
- // draw op
- // matrix & clip calls
- // draw op
- static void emit_body1(SkCanvas* canvas, PFEmitMC emitMC, MatType mat,
- ClipType clip, DrawOpType draw,
- SkTDArray<DrawType>* expected, int accumulatedClips) {
- bool needsSaveRestore = kNone_DrawOpType != draw &&
- (kNone_MatType != mat || kNone_ClipType != clip);
- if (needsSaveRestore) {
- *expected->append() = SAVE;
- }
- (*emitMC)(canvas, mat, clip, draw, expected, accumulatedClips+1);
- emit_draw(canvas, draw, expected);
- if (needsSaveRestore) {
- *expected->append() = RESTORE;
- *expected->append() = SAVE;
- }
- (*emitMC)(canvas, mat, clip, draw, expected, accumulatedClips+2);
- emit_draw(canvas, draw, expected);
- if (needsSaveRestore) {
- *expected->append() = RESTORE;
- }
- }
- // Emit:
- // matrix & clip calls
- // SaveLayer
- // matrix & clip calls
- // draw op
- // Restore
- static void emit_body2(SkCanvas* canvas, PFEmitMC emitMC, MatType mat,
- ClipType clip, DrawOpType draw,
- SkTDArray<DrawType>* expected, int accumulatedClips) {
- bool needsSaveRestore = kNone_DrawOpType != draw &&
- (kNone_MatType != mat || kNone_ClipType != clip);
- if (kNone_MatType != mat || kNone_ClipType != clip) {
- *expected->append() = SAVE;
- }
- (*emitMC)(canvas, mat, clip, kSaveLayer_DrawOpType, expected, accumulatedClips+1);
- *expected->append() = SAVE_LAYER;
- // TODO: widen testing to exercise saveLayer's parameters
- canvas->saveLayer(nullptr, nullptr);
- if (needsSaveRestore) {
- *expected->append() = SAVE;
- }
- (*emitMC)(canvas, mat, clip, draw, expected, 1);
- emit_draw(canvas, draw, expected);
- if (needsSaveRestore) {
- *expected->append() = RESTORE;
- }
- canvas->restore();
- *expected->append() = RESTORE;
- if (kNone_MatType != mat || kNone_ClipType != clip) {
- *expected->append() = RESTORE;
- }
- }
- // Emit:
- // matrix & clip calls
- // SaveLayer
- // matrix & clip calls
- // SaveLayer
- // matrix & clip calls
- // draw op
- // Restore
- // matrix & clip calls (will be ignored)
- // Restore
- static void emit_body3(SkCanvas* canvas, PFEmitMC emitMC, MatType mat,
- ClipType clip, DrawOpType draw,
- SkTDArray<DrawType>* expected, int accumulatedClips) {
- bool needsSaveRestore = kNone_DrawOpType != draw &&
- (kNone_MatType != mat || kNone_ClipType != clip);
- if (kNone_MatType != mat || kNone_ClipType != clip) {
- *expected->append() = SAVE;
- }
- (*emitMC)(canvas, mat, clip, kSaveLayer_DrawOpType, expected, accumulatedClips+1);
- *expected->append() = SAVE_LAYER;
- // TODO: widen testing to exercise saveLayer's parameters
- canvas->saveLayer(nullptr, nullptr);
- (*emitMC)(canvas, mat, clip, kSaveLayer_DrawOpType, expected, 1);
- if (kNone_MatType != mat || kNone_ClipType != clip) {
- *expected->append() = SAVE;
- }
- *expected->append() = SAVE_LAYER;
- // TODO: widen testing to exercise saveLayer's parameters
- canvas->saveLayer(nullptr, nullptr);
- if (needsSaveRestore) {
- *expected->append() = SAVE;
- }
- (*emitMC)(canvas, mat, clip, draw, expected, 1);
- emit_draw(canvas, draw, expected);
- if (needsSaveRestore) {
- *expected->append() = RESTORE;
- }
- canvas->restore(); // for saveLayer
- *expected->append() = RESTORE; // for saveLayer
- if (kNone_MatType != mat || kNone_ClipType != clip) {
- *expected->append() = RESTORE;
- }
- canvas->restore();
- // required to match forced SAVE_LAYER
- *expected->append() = RESTORE;
- if (kNone_MatType != mat || kNone_ClipType != clip) {
- *expected->append() = RESTORE;
- }
- }
- //////////////////////////////////////////////////////////////////////////////
- // Emit:
- // Save
- // some body
- // Restore
- // Note: the outer save/restore are provided by beginRecording/endRecording
- static void emit_struct0(SkCanvas* canvas,
- PFEmitMC emitMC, MatType mat, ClipType clip,
- PFEmitBody emitBody, DrawOpType draw,
- SkTDArray<DrawType>* expected) {
- (*emitBody)(canvas, emitMC, mat, clip, draw, expected, 0);
- }
- // Emit:
- // Save
- // matrix & clip calls
- // Save
- // some body
- // Restore
- // matrix & clip calls (will be ignored)
- // Restore
- // Note: the outer save/restore are provided by beginRecording/endRecording
- static void emit_struct1(SkCanvas* canvas,
- PFEmitMC emitMC, MatType mat, ClipType clip,
- PFEmitBody emitBody, DrawOpType draw,
- SkTDArray<DrawType>* expected) {
- (*emitMC)(canvas, mat, clip, draw, nullptr, 0); // these get fused into later ops
- canvas->save();
- (*emitBody)(canvas, emitMC, mat, clip, draw, expected, 1);
- canvas->restore();
- (*emitMC)(canvas, mat, clip, draw, nullptr, 0); // these will get removed
- }
- // Emit:
- // Save
- // matrix & clip calls
- // Save
- // some body
- // Restore
- // Save
- // some body
- // Restore
- // matrix & clip calls (will be ignored)
- // Restore
- // Note: the outer save/restore are provided by beginRecording/endRecording
- static void emit_struct2(SkCanvas* canvas,
- PFEmitMC emitMC, MatType mat, ClipType clip,
- PFEmitBody emitBody, DrawOpType draw,
- SkTDArray<DrawType>* expected) {
- (*emitMC)(canvas, mat, clip, draw, nullptr, 1); // these will get fused into later ops
- canvas->save();
- (*emitBody)(canvas, emitMC, mat, clip, draw, expected, 1);
- canvas->restore();
- canvas->save();
- (*emitBody)(canvas, emitMC, mat, clip, draw, expected, 1);
- canvas->restore();
- (*emitMC)(canvas, mat, clip, draw, nullptr, 1); // these will get removed
- }
- // Emit:
- // Save
- // matrix & clip calls
- // Save
- // some body
- // Restore
- // Save
- // matrix & clip calls
- // Save
- // some body
- // Restore
- // Restore
- // matrix & clip calls (will be ignored)
- // Restore
- // Note: the outer save/restore are provided by beginRecording/endRecording
- static void emit_struct3(SkCanvas* canvas,
- PFEmitMC emitMC, MatType mat, ClipType clip,
- PFEmitBody emitBody, DrawOpType draw,
- SkTDArray<DrawType>* expected) {
- (*emitMC)(canvas, mat, clip, draw, nullptr, 0); // these will get fused into later ops
- canvas->save();
- (*emitBody)(canvas, emitMC, mat, clip, draw, expected, 1);
- canvas->restore();
- canvas->save();
- (*emitMC)(canvas, mat, clip, draw, nullptr, 1); // these will get fused into later ops
- canvas->save();
- (*emitBody)(canvas, emitMC, mat, clip, draw, expected, 2);
- canvas->restore();
- canvas->restore();
- (*emitMC)(canvas, mat, clip, draw, nullptr, 0); // these will get removed
- }
- //////////////////////////////////////////////////////////////////////////////
- #ifdef SK_COLLAPSE_MATRIX_CLIP_STATE
- static void print(const SkTDArray<DrawType>& expected, const SkTDArray<DrawType>& actual) {
- SkDebugf("\n\nexpected %d --- actual %d\n", expected.count(), actual.count());
- int max = SkMax32(expected.count(), actual.count());
- for (int i = 0; i < max; ++i) {
- if (i < expected.count()) {
- SkDebugf("%16s, ", DrawCommand::GetCommandString(expected[i]));
- } else {
- SkDebugf("%16s, ", " ");
- }
- if (i < actual.count()) {
- SkDebugf("%s\n", DrawCommand::GetCommandString(actual[i]));
- } else {
- SkDebugf("\n");
- }
- }
- SkDebugf("\n\n");
- SkASSERT(0);
- }
- #endif
- static void test_collapse(skiatest::Reporter* reporter) {
- PFEmitStruct gStructure[] = { emit_struct0, emit_struct1, emit_struct2, emit_struct3 };
- PFEmitBody gBody[] = { emit_body0, emit_body1, emit_body2, emit_body3 };
- PFEmitMC gMCs[] = { emit_clip_and_mat, emit_mat_and_clip,
- emit_double_mat_and_clip, emit_mat_clip_clip };
- for (size_t i = 0; i < SK_ARRAY_COUNT(gStructure); ++i) {
- for (size_t j = 0; j < SK_ARRAY_COUNT(gBody); ++j) {
- for (size_t k = 0; k < SK_ARRAY_COUNT(gMCs); ++k) {
- for (int l = 0; l < kMatTypeCount; ++l) {
- for (int m = 0; m < kClipTypeCount; ++m) {
- for (int n = 0; n < kNonSaveLayerDrawOpTypeCount; ++n) {
- #ifdef TEST_COLLAPSE_MATRIX_CLIP_STATE
- static int testID = -1;
- ++testID;
- if (testID < -1) {
- continue;
- }
- SkDebugf("test: %d\n", testID);
- #endif
- SkTDArray<DrawType> expected, actual;
- SkPicture picture;
- // Note: beginRecording/endRecording add a save/restore pair
- SkCanvas* canvas = picture.beginRecording(100, 100);
- (*gStructure[i])(canvas,
- gMCs[k],
- (MatType) l,
- (ClipType) m,
- gBody[j],
- (DrawOpType) n,
- &expected);
- picture.endRecording();
- gets_ops(picture, &actual);
- REPORTER_ASSERT(reporter, expected.count() == actual.count());
- if (expected.count() != actual.count()) {
- #ifdef TEST_COLLAPSE_MATRIX_CLIP_STATE
- print(expected, actual);
- #endif
- continue;
- }
- for (int i = 0; i < expected.count(); ++i) {
- REPORTER_ASSERT(reporter, expected[i] == actual[i]);
- #ifdef TEST_COLLAPSE_MATRIX_CLIP_STATE
- if (expected[i] != actual[i]) {
- print(expected, actual);
- }
- #endif
- break;
- }
- }
- }
- }
- }
- }
- }
- }
- DEF_TEST(MatrixClipCollapse, reporter) {
- test_collapse(reporter);
- }
- #endif
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