1 files changed, 261 insertions, 0 deletions
diff --git a/libs/hwui/DrawProfiler.cpp b/libs/hwui/DrawProfiler.cpp
new file mode 100644
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--- /dev/null
+++ b/libs/hwui/DrawProfiler.cpp
@@ -0,0 +1,261 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "DrawProfiler.h"
+
+#include <cutils/compiler.h>
+
+#include "OpenGLRenderer.h"
+#include "Properties.h"
+
+#define DEFAULT_MAX_FRAMES 128
+
+#define RETURN_IF_DISABLED() if (CC_LIKELY(mType == kNone)) return
+
+#define NANOS_TO_MILLIS_FLOAT(nanos) ((nanos) * 0.000001f)
+
+#define PROFILE_DRAW_WIDTH 3
+#define PROFILE_DRAW_THRESHOLD_STROKE_WIDTH 2
+#define PROFILE_DRAW_DP_PER_MS 7
+
+// Number of floats we want to display from FrameTimingData
+// If this is changed make sure to update the indexes below
+#define NUM_ELEMENTS 4
+
+#define RECORD_INDEX 0
+#define PREPARE_INDEX 1
+#define PLAYBACK_INDEX 2
+#define SWAPBUFFERS_INDEX 3
+
+// Must be NUM_ELEMENTS in size
+static const SkColor ELEMENT_COLORS[] = { 0xcf3e66cc, 0xcf8f00ff, 0xcfdc3912, 0xcfe69800 };
+static const SkColor CURRENT_FRAME_COLOR = 0xcf5faa4d;
+static const SkColor THRESHOLD_COLOR = 0xff5faa4d;
+
+// We could get this from TimeLord and use the actual frame interval, but
+// this is good enough
+#define FRAME_THRESHOLD 16
+
+namespace android {
+namespace uirenderer {
+
+static int dpToPx(int dp, float density) {
+    return (int) (dp * density + 0.5f);
+}
+
+DrawProfiler::DrawProfiler()
+        : mType(kNone)
+        , mDensity(0)
+        , mData(NULL)
+        , mDataSize(0)
+        , mCurrentFrame(-1)
+        , mPreviousTime(0)
+        , mVerticalUnit(0)
+        , mHorizontalUnit(0)
+        , mThresholdStroke(0) {
+    setDensity(1);
+}
+
+DrawProfiler::~DrawProfiler() {
+    destroyData();
+}
+
+void DrawProfiler::setDensity(float density) {
+    if (CC_UNLIKELY(mDensity != density)) {
+        mDensity = density;
+        mVerticalUnit = dpToPx(PROFILE_DRAW_DP_PER_MS, density);
+        mHorizontalUnit = dpToPx(PROFILE_DRAW_WIDTH, density);
+        mThresholdStroke = dpToPx(PROFILE_DRAW_THRESHOLD_STROKE_WIDTH, density);
+    }
+}
+
+void DrawProfiler::startFrame(nsecs_t recordDurationNanos) {
+    RETURN_IF_DISABLED();
+    mData[mCurrentFrame].record = NANOS_TO_MILLIS_FLOAT(recordDurationNanos);
+    mPreviousTime = systemTime(CLOCK_MONOTONIC);
+}
+
+void DrawProfiler::markPlaybackStart() {
+    RETURN_IF_DISABLED();
+    nsecs_t now = systemTime(CLOCK_MONOTONIC);
+    mData[mCurrentFrame].prepare = NANOS_TO_MILLIS_FLOAT(now - mPreviousTime);
+    mPreviousTime = now;
+}
+
+void DrawProfiler::markPlaybackEnd() {
+    RETURN_IF_DISABLED();
+    nsecs_t now = systemTime(CLOCK_MONOTONIC);
+    mData[mCurrentFrame].playback = NANOS_TO_MILLIS_FLOAT(now - mPreviousTime);
+    mPreviousTime = now;
+}
+
+void DrawProfiler::finishFrame() {
+    RETURN_IF_DISABLED();
+    nsecs_t now = systemTime(CLOCK_MONOTONIC);
+    mData[mCurrentFrame].swapBuffers = NANOS_TO_MILLIS_FLOAT(now - mPreviousTime);
+    mPreviousTime = now;
+    mCurrentFrame = (mCurrentFrame + 1) % mDataSize;
+}
+
+void DrawProfiler::unionDirty(Rect* dirty) {
+    RETURN_IF_DISABLED();
+    // Not worth worrying about minimizing the dirty region for debugging, so just
+    // dirty the entire viewport.
+    if (dirty) {
+        dirty->setEmpty();
+    }
+}
+
+void DrawProfiler::draw(OpenGLRenderer* canvas) {
+    if (CC_LIKELY(mType != kBars)) {
+        return;
+    }
+
+    prepareShapes(canvas->getViewportHeight());
+    drawGraph(canvas);
+    drawCurrentFrame(canvas);
+    drawThreshold(canvas);
+}
+
+void DrawProfiler::createData() {
+    if (mData) return;
+
+    mDataSize = property_get_int32(PROPERTY_PROFILE_MAXFRAMES, DEFAULT_MAX_FRAMES);
+    if (mDataSize <= 0) mDataSize = 1;
+    if (mDataSize > 4096) mDataSize = 4096; // Reasonable maximum
+    mData = (FrameTimingData*) calloc(mDataSize, sizeof(FrameTimingData));
+    mRects = new float*[NUM_ELEMENTS];
+    for (int i = 0; i < NUM_ELEMENTS; i++) {
+        // 4 floats per rect
+        mRects[i] = (float*) calloc(mDataSize, 4 * sizeof(float));
+    }
+    mCurrentFrame = 0;
+}
+
+void DrawProfiler::destroyData() {
+    delete mData;
+    mData = NULL;
+}
+
+void DrawProfiler::addRect(Rect& r, float data, float* shapeOutput) {
+    r.top = r.bottom - (data * mVerticalUnit);
+    shapeOutput[0] = r.left;
+    shapeOutput[1] = r.top;
+    shapeOutput[2] = r.right;
+    shapeOutput[3] = r.bottom;
+    r.bottom = r.top;
+}
+
+void DrawProfiler::prepareShapes(const int baseline) {
+    Rect r;
+    r.right = mHorizontalUnit;
+    for (int i = 0; i < mDataSize; i++) {
+        const int shapeIndex = i * 4;
+        r.bottom = baseline;
+        addRect(r, mData[i].record, mRects[RECORD_INDEX] + shapeIndex);
+        addRect(r, mData[i].prepare, mRects[PREPARE_INDEX] + shapeIndex);
+        addRect(r, mData[i].playback, mRects[PLAYBACK_INDEX] + shapeIndex);
+        addRect(r, mData[i].swapBuffers, mRects[SWAPBUFFERS_INDEX] + shapeIndex);
+        r.translate(mHorizontalUnit, 0);
+    }
+}
+
+void DrawProfiler::drawGraph(OpenGLRenderer* canvas) {
+    SkPaint paint;
+    for (int i = 0; i < NUM_ELEMENTS; i++) {
+        paint.setColor(ELEMENT_COLORS[i]);
+        canvas->drawRects(mRects[i], mDataSize * 4, &paint);
+    }
+}
+
+void DrawProfiler::drawCurrentFrame(OpenGLRenderer* canvas) {
+    // This draws a solid rect over the entirety of the current frame's shape
+    // To do so we use the bottom of mRects[0] and the top of mRects[NUM_ELEMENTS-1]
+    // which will therefore fully overlap the previously drawn rects
+    SkPaint paint;
+    paint.setColor(CURRENT_FRAME_COLOR);
+    const int i = mCurrentFrame * 4;
+    canvas->drawRect(mRects[0][i], mRects[NUM_ELEMENTS-1][i+1], mRects[0][i+2],
+            mRects[0][i+3], &paint);
+}
+
+void DrawProfiler::drawThreshold(OpenGLRenderer* canvas) {
+    SkPaint paint;
+    paint.setColor(THRESHOLD_COLOR);
+    paint.setStrokeWidth(mThresholdStroke);
+
+    float pts[4];
+    pts[0] = 0.0f;
+    pts[1] = pts[3] = canvas->getViewportHeight() - (FRAME_THRESHOLD * mVerticalUnit);
+    pts[2] = canvas->getViewportWidth();
+    canvas->drawLines(pts, 4, &paint);
+}
+
+DrawProfiler::ProfileType DrawProfiler::loadRequestedProfileType() {
+    ProfileType type = kNone;
+    char buf[PROPERTY_VALUE_MAX] = {'\0',};
+    if (property_get(PROPERTY_PROFILE, buf, "") > 0) {
+        if (!strcmp(buf, PROPERTY_PROFILE_VISUALIZE_BARS)) {
+            type = kBars;
+        } else if (!strcmp(buf, "true")) {
+            type = kConsole;
+        }
+    }
+    return type;
+}
+
+bool DrawProfiler::loadSystemProperties() {
+    ProfileType newType = loadRequestedProfileType();
+    if (newType != mType) {
+        mType = newType;
+        if (mType == kNone) {
+            destroyData();
+        } else {
+            createData();
+        }
+        return true;
+    }
+    return false;
+}
+
+void DrawProfiler::dumpData(int fd) {
+    RETURN_IF_DISABLED();
+
+    // This method logs the last N frames (where N is <= mDataSize) since the
+    // last call to dumpData(). In other words if there's a dumpData(), draw frame,
+    // dumpData(), the last dumpData() should only log 1 frame.
+
+    const FrameTimingData emptyData = {0, 0, 0, 0};
+
+    FILE *file = fdopen(fd, "a");
+    fprintf(file, "\n\tDraw\tPrepare\tProcess\tExecute\n");
+
+    for (int frameOffset = 1; frameOffset <= mDataSize; frameOffset++) {
+        int i = (mCurrentFrame + frameOffset) % mDataSize;
+        if (!memcmp(mData + i, &emptyData, sizeof(FrameTimingData))) {
+            continue;
+        }
+        fprintf(file, "\t%3.2f\t%3.2f\t%3.2f\t%3.2f\n",
+                mData[i].record, mData[i].prepare, mData[i].playback, mData[i].swapBuffers);
+    }
+    // reset the buffer
+    memset(mData, 0, sizeof(FrameTimingData) * mDataSize);
+    mCurrentFrame = 0;
+
+    fflush(file);
+}
+
+} /* namespace uirenderer */
+} /* namespace android */