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Unified Diff: src/gpu/GrRecordReplaceDraw.cpp

Issue 535953002: Replace SkPictureReplacementPlayback with GrRecordReplaceDraw (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Fix leak in SkImage creation (in test) Created 6 years, 3 months ago
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Index: src/gpu/GrRecordReplaceDraw.cpp
diff --git a/src/gpu/GrRecordReplaceDraw.cpp b/src/gpu/GrRecordReplaceDraw.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..8291ccb82866e68aa19f3d8e88afbaee51caa164
--- /dev/null
+++ b/src/gpu/GrRecordReplaceDraw.cpp
@@ -0,0 +1,119 @@
+/*
+ * 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 "GrRecordReplaceDraw.h"
+#include "SkImage.h"
+#include "SkRecordDraw.h"
+
+GrReplacements::ReplacementInfo* GrReplacements::push() {
+ SkDEBUGCODE(this->validate());
+ return fReplacements.push();
+}
+
+void GrReplacements::freeAll() {
+ for (int i = 0; i < fReplacements.count(); ++i) {
+ fReplacements[i].fImage->unref();
+ }
+ fReplacements.reset();
+}
+
+#ifdef SK_DEBUG
+void GrReplacements::validate() const {
+ // Check that the ranges are monotonically increasing and non-overlapping
+ if (fReplacements.count() > 0) {
+ SkASSERT(fReplacements[0].fStart < fReplacements[0].fStop);
+
+ for (int i = 1; i < fReplacements.count(); ++i) {
+ SkASSERT(fReplacements[i].fStart < fReplacements[i].fStop);
+ SkASSERT(fReplacements[i - 1].fStop < fReplacements[i].fStart);
+ }
+ }
+}
+#endif
+
+const GrReplacements::ReplacementInfo*
+GrReplacements::lookupByStart(size_t start, int* searchStart) const {
+ SkDEBUGCODE(this->validate());
+ for (int i = *searchStart; i < fReplacements.count(); ++i) {
+ if (start == fReplacements[i].fStart) {
+ *searchStart = i + 1;
+ return &fReplacements[i];
+ } else if (start < fReplacements[i].fStart) {
+ return NULL; // the ranges are monotonically increasing and non-overlapping
+ }
+ }
+
+ return NULL;
+}
+
+static inline void draw_replacement_bitmap(const GrReplacements::ReplacementInfo* ri,
+ SkCanvas* canvas) {
+ SkRect src = SkRect::Make(ri->fSrcRect);
+ SkRect dst = SkRect::MakeXYWH(SkIntToScalar(ri->fPos.fX),
+ SkIntToScalar(ri->fPos.fY),
+ SkIntToScalar(ri->fSrcRect.width()),
+ SkIntToScalar(ri->fSrcRect.height()));
+ ri->fImage->draw(canvas, &src, dst, ri->fPaint);
+}
+
+void GrRecordReplaceDraw(const SkRecord& record,
+ SkCanvas* canvas,
+ const SkBBoxHierarchy* bbh,
+ const GrReplacements* replacements,
+ SkDrawPictureCallback* callback) {
+ SkAutoCanvasRestore saveRestore(canvas, true /*save now, restore at exit*/);
+
+ SkRecords::Draw draw(canvas);
+ const GrReplacements::ReplacementInfo* ri = NULL;
+ int searchStart = 0;
+
+ if (NULL != bbh) {
+ // Draw only ops that affect pixels in the canvas's current clip.
+ // The SkRecord and BBH were recorded in identity space. This canvas
+ // is not necessarily in that same space. getClipBounds() returns us
+ // this canvas' clip bounds transformed back into identity space, which
+ // lets us query the BBH.
+ SkRect query = { 0, 0, 0, 0 };
+ (void)canvas->getClipBounds(&query);
+
+ SkTDArray<void*> ops;
+ bbh->search(query, &ops);
+
+ for (int i = 0; i < ops.count(); i++) {
+ if (NULL != callback && callback->abortDrawing()) {
+ return;
+ }
+ ri = replacements->lookupByStart(i, &searchStart);
+ if (NULL != ri) {
+ draw_replacement_bitmap(ri, canvas);
+
+ while ((uintptr_t)ops[i] < ri->fStop) {
+ ++i;
+ }
+ SkASSERT((uintptr_t)ops[i] == ri->fStop);
+ continue;
+ }
+
+ record.visit<void>((uintptr_t)ops[i], draw);
+ }
+ } else {
+ for (unsigned int i = 0; i < record.count(); ++i) {
+ if (NULL != callback && callback->abortDrawing()) {
+ return;
+ }
+ ri = replacements->lookupByStart(i, &searchStart);
+ if (NULL != ri) {
+ draw_replacement_bitmap(ri, canvas);
+
+ i = ri->fStop;
+ continue;
+ }
+
+ record.visit<void>(i, draw);
+ }
+ }
+}
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