gecko/gfx/layers/RenderTrace.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * 1.1 (the "License"); you may not use this file except in compliance with
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 * for the specific language governing rights and limitations under the
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 * The Original Code is Mozilla Corporation code.
 *
 * The Initial Developer of the Original Code is Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2012
 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *   Benoit Girard <bgirard@mozilla.com>
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 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#include "Layers.h"
#include "RenderTrace.h"

// If rendertrace is off let's no compile this code
#ifdef MOZ_RENDERTRACE


namespace mozilla {
namespace layers {

static int colorId = 0;

// This should be done in the printf but android's printf is buggy
const char* colors[] = {
    "00", "01", "02", "03", "04", "05", "06", "07", "08", "09",
    "10", "11", "12", "13", "14", "15", "16", "17", "18", "19"
    };

const char* layerName[] = {
    "CANVAS", "COLOR", "CONTAINER", "IMAGE", "READBACK", "SHADOW", "THEBES"
    };

static gfx3DMatrix GetRootTransform(Layer *aLayer) {
  if (aLayer->GetParent() != NULL)
    return GetRootTransform(aLayer->GetParent()) * aLayer->GetTransform();
  return aLayer->GetTransform();
}

void RenderTraceLayers(Layer *aLayer, const char *aColor, gfx3DMatrix aRootTransform, bool aReset) {
  if (!aLayer)
    return;

  gfx3DMatrix trans = aRootTransform * aLayer->GetTransform();
  nsIntRect clipRect = aLayer->GetEffectiveVisibleRegion().GetBounds();
  clipRect.MoveBy((int)trans.ProjectTo2D()[3][0], (int)trans.ProjectTo2D()[3][1]);

  printf_stderr("%s RENDERTRACE %u rect #%s%s %i %i %i %i\n",
    layerName[aLayer->GetType()], (int)PR_IntervalNow(),
    colors[colorId%19], aColor,
    clipRect.x, clipRect.y, clipRect.width, clipRect.height);

  colorId++;

  for (Layer* child = aLayer->GetFirstChild();
        child; child = child->GetNextSibling()) {
    RenderTraceLayers(child, aColor, aRootTransform, false);
  }

  if (aReset) colorId = 0;
}

void RenderTraceInvalidateStart(Layer *aLayer, const char *aColor, nsIntRect aRect) {
  gfx3DMatrix trans = GetRootTransform(aLayer);
  aRect.MoveBy((int)trans.ProjectTo2D()[3][0], (int)trans.ProjectTo2D()[3][1]);

  printf_stderr("%s RENDERTRACE %u fillrect #%s%s %i %i %i %i\n",
    layerName[aLayer->GetType()], (int)PR_IntervalNow(),
    "FF", aColor,
    aRect.x, aRect.y, aRect.width, aRect.height);
}
void RenderTraceInvalidateEnd(Layer *aLayer, const char *aColor) {
  // Clear with an empty rect
  RenderTraceInvalidateStart(aLayer, aColor, nsIntRect());
}

}
}

#endif