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/*
* Copyright 2010, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "BaseTile.h"
#if USE(ACCELERATED_COMPOSITING)
#include "GLUtils.h"
#include "SkBitmap.h"
#include "SkBitmapRef.h"
#include "SkCanvas.h"
#include "SkPicture.h"
#include "TilesManager.h"
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <cutils/atomic.h>
#include <wtf/text/CString.h>
#ifdef DEBUG
#include <cutils/log.h>
#include <wtf/CurrentTime.h>
#undef XLOG
#define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "BaseTile", __VA_ARGS__)
#else
#undef XLOG
#define XLOG(...)
#endif // DEBUG
namespace WebCore {
static const String TAG_CREATE_BITMAP = "create_bitmap";
static const String TAG_RECORD_PICTURE = "record_picture";
static const String TAG_DRAW_PICTURE = "draw_picture";
static const String TAG_UPDATE_TEXTURE = "update_texture";
static const String TAG_RESET_BITMAP = "reset_bitmap";
#define TAG_COUNT 5
static const String TAGS[] = {
TAG_CREATE_BITMAP,
TAG_RECORD_PICTURE,
TAG_DRAW_PICTURE,
TAG_UPDATE_TEXTURE,
TAG_RESET_BITMAP
};
BaseTile::BaseTile()
: m_page(0)
, m_x(-1)
, m_y(-1)
, m_texture(0)
, m_scale(1)
, m_dirty(true)
, m_repaintPending(false)
, m_usable(true)
, m_lastDirtyPicture(0)
, m_fullRepaintA(true)
, m_fullRepaintB(true)
, m_lastPaintedPicture(0)
{
#ifdef DEBUG_COUNT
ClassTracker::instance()->increment("BaseTile");
#endif
m_currentDirtyArea = &m_dirtyAreaA;
}
BaseTile::~BaseTile()
{
setUsedLevel(-1);
if (m_texture)
m_texture->release(this);
#ifdef DEBUG_COUNT
ClassTracker::instance()->decrement("BaseTile");
#endif
}
// All the following functions must be called from the main GL thread.
void BaseTile::setContents(TiledPage* page, int x, int y)
{
android::AutoMutex lock(m_atomicSync);
m_page = page;
m_x = x;
m_y = y;
}
void BaseTile::reserveTexture()
{
BackedDoubleBufferedTexture* texture = TilesManager::instance()->getAvailableTexture(this);
android::AutoMutex lock(m_atomicSync);
if (texture && m_texture != texture) {
m_lastPaintedPicture = 0;
fullInval();
m_texture = texture;
}
}
bool BaseTile::removeTexture(BackedDoubleBufferedTexture* texture)
{
XLOG("%x removeTexture res: %x... page %x", this, m_texture, m_page);
// We update atomically, so paintBitmap() can see the correct value
android::AutoMutex lock(m_atomicSync);
if (m_texture == texture)
m_texture = 0;
return true;
}
void BaseTile::fullInval()
{
m_dirtyAreaA.setEmpty();
m_dirtyAreaB.setEmpty();
m_fullRepaintA = true;
m_fullRepaintB = true;
m_dirty = true;
}
void BaseTile::setScale(float scale)
{
android::AutoMutex lock(m_atomicSync);
if (m_scale != scale) {
m_scale = scale;
fullInval();
}
}
void BaseTile::markAsDirty(int unsigned pictureCount,
const SkRegion& dirtyArea)
{
android::AutoMutex lock(m_atomicSync);
m_lastDirtyPicture = pictureCount;
m_dirtyAreaA.op(dirtyArea, SkRegion::kUnion_Op);
m_dirtyAreaB.op(dirtyArea, SkRegion::kUnion_Op);
m_dirty = true;
}
void BaseTile::setUsable(bool usable)
{
android::AutoMutex lock(m_atomicSync);
m_usable = usable;
}
bool BaseTile::isDirty()
{
android::AutoMutex lock(m_atomicSync);
return m_dirty;
}
bool BaseTile::isRepaintPending()
{
android::AutoMutex lock(m_atomicSync);
return m_repaintPending;
}
void BaseTile::setRepaintPending(bool pending)
{
android::AutoMutex lock(m_atomicSync);
m_repaintPending = pending;
}
void BaseTile::setUsedLevel(int usedLevel)
{
if (m_texture)
m_texture->setUsedLevel(usedLevel);
}
int BaseTile::usedLevel()
{
if (m_texture)
return m_texture->usedLevel();
return -1;
}
void BaseTile::draw(float transparency, SkRect& rect, float scale)
{
if (m_x < 0 || m_y < 0 || m_scale != scale)
return;
// No need to mutex protect reads of m_texture as it is only written to by
// the consumer thread.
if (!m_texture) {
XLOG("%x on page %x (%d, %d) trying to draw, but no m_texture!", this, m_page, x(), y());
return;
}
// Early return if set to un-usable in purpose!
m_atomicSync.lock();
bool usable = m_usable;
bool isTexturePainted = m_lastPaintedPicture;
m_atomicSync.unlock();
if (!usable) {
XLOG("early return at BaseTile::draw b/c tile set to unusable !");
return;
}
if (!isTexturePainted) {
XLOG("early return at BaseTile::draw b/c tile is not painted !");
return;
}
TextureInfo* textureInfo = m_texture->consumerLock();
if (!textureInfo) {
XLOG("%x (%d, %d) trying to draw, but no textureInfo!", this, x(), y());
m_texture->consumerRelease();
return;
}
if (m_texture->readyFor(this)) {
XLOG("draw tile %d, %d, %.2f with texture %x", x(), y(), scale(), m_texture);
TilesManager::instance()->shader()->drawQuad(rect, textureInfo->m_textureId,
transparency);
}
m_texture->consumerRelease();
}
bool BaseTile::isTileReady()
{
if (!m_texture)
return false;
if (m_texture->owner() != this)
return false;
android::AutoMutex lock(m_atomicSync);
if (m_dirty)
return false;
m_texture->consumerLock();
bool ready = m_texture->readyFor(this);
m_texture->consumerRelease();
if (ready)
return true;
m_dirty = true;
return false;
}
void BaseTile::drawTileInfo(SkCanvas* canvas,
BackedDoubleBufferedTexture* texture,
int x, int y, float scale,
int pictureCount)
{
SkPaint paint;
char str[256];
snprintf(str, 256, "(%d,%d) %.2f, tl%x tx%x p%x c%x",
x, y, scale, this, texture, m_page, pictureCount);
paint.setARGB(255, 0, 0, 0);
canvas->drawText(str, strlen(str), 0, 10, paint);
paint.setARGB(255, 255, 0, 0);
canvas->drawText(str, strlen(str), 0, 11, paint);
float total = 0;
for (int i = 0; i < TAG_COUNT; i++) {
float tagDuration = m_perfMon.getAverageDuration(TAGS[i]);
total += tagDuration;
snprintf(str, 256, "%s: %.2f", TAGS[i].utf8().data(), tagDuration);
paint.setARGB(255, 0, 0, 0);
int textY = (i * 12) + 25;
canvas->drawText(str, strlen(str), 0, textY, paint);
paint.setARGB(255, 255, 0, 0);
canvas->drawText(str, strlen(str), 0, textY + 1, paint);
}
snprintf(str, 256, "total: %.2f", total);
paint.setARGB(255, 0, 0, 0);
int textY = (TAG_COUNT * 12) + 30;
canvas->drawText(str, strlen(str), 0, textY, paint);
paint.setARGB(255, 255, 0, 0);
canvas->drawText(str, strlen(str), 0, textY + 1, paint);
}
// This is called from the texture generation thread
void BaseTile::paintBitmap()
{
// We acquire the values below atomically. This ensures that we are reading
// values correctly across cores. Further, once we have these values they
// can be updated by other threads without consequence.
m_atomicSync.lock();
bool dirty = m_dirty;
BackedDoubleBufferedTexture* texture = m_texture;
SkRegion dirtyArea = *m_currentDirtyArea;
float scale = m_scale;
const int x = m_x;
const int y = m_y;
m_atomicSync.unlock();
if (!dirty || !texture) {
return;
}
TiledPage* tiledPage = m_page;
texture->producerAcquireContext();
TextureInfo* textureInfo = texture->producerLock();
// at this point we can safely check the ownership (if the texture got
// transferred to another BaseTile under us)
if (texture->owner() != this || texture->usedLevel() > 1) {
texture->producerRelease();
return;
}
SkSize size = texture->getSize();
float tileWidth = size.width();
float tileHeight = size.height();
const float invScale = 1 / scale;
float w = tileWidth * invScale;
float h = tileHeight * invScale;
SkCanvas* canvas;
unsigned int pictureCount = 0;
SkRegion::Iterator cliperator(dirtyArea);
bool fullRepaint = false;
if (((m_currentDirtyArea == &m_dirtyAreaA) && m_fullRepaintA) ||
((m_currentDirtyArea == &m_dirtyAreaB) && m_fullRepaintB))
fullRepaint = true;
if (fullRepaint) {
SkIRect rect;
pictureCount = paintPartialBitmap(rect, 0, 0, scale, texture,
textureInfo, tiledPage, true);
} else {
while (!cliperator.done()) {
SkRect dirtyRect;
dirtyRect.set(cliperator.rect());
float left = x * tileWidth;
float top = y * tileHeight;
// compute the rect to corresponds to pixels
SkRect realTileRect;
realTileRect.fLeft = left;
realTileRect.fTop = top;
realTileRect.fRight = left + tileWidth;
realTileRect.fBottom = top + tileHeight;
// scale the dirtyRect for intersect computation.
SkRect realDirtyRect = SkRect::MakeWH(dirtyRect.width() * scale,
dirtyRect.height() * scale);
realDirtyRect.offset(dirtyRect.fLeft * scale, dirtyRect.fTop * scale);
if (!realTileRect.intersect(realDirtyRect)) {
cliperator.next();
continue;
}
realTileRect.fLeft = floorf(realTileRect.fLeft);
realTileRect.fTop = floorf(realTileRect.fTop);
realTileRect.fRight = ceilf(realTileRect.fRight);
realTileRect.fBottom = ceilf(realTileRect.fBottom);
SkIRect finalRealRect;
finalRealRect.fLeft = static_cast<int>(realTileRect.fLeft) % static_cast<int>(tileWidth);
finalRealRect.fTop = static_cast<int>(realTileRect.fTop) % static_cast<int>(tileHeight);
finalRealRect.fRight = finalRealRect.fLeft + realTileRect.width();
finalRealRect.fBottom = finalRealRect.fTop + realTileRect.height();
// the canvas translate can be recomputed accounting for the scale
float tx = - realTileRect.fLeft / scale;
float ty = - realTileRect.fTop / scale;
pictureCount = paintPartialBitmap(finalRealRect, tx, ty, scale, texture,
textureInfo, tiledPage);
cliperator.next();
}
}
XLOG("%x update texture %x for tile %d, %d scale %.2f (m_scale: %.2f)", this, textureInfo, x, y, scale, m_scale);
m_atomicSync.lock();
texture->setTile(textureInfo, x, y, scale, pictureCount);
texture->producerReleaseAndSwap();
if (texture == m_texture) {
m_lastPaintedPicture = pictureCount;
// set the fullrepaint flags
if ((m_currentDirtyArea == &m_dirtyAreaA) && m_fullRepaintA)
m_fullRepaintA = false;
if ((m_currentDirtyArea == &m_dirtyAreaB) && m_fullRepaintB)
m_fullRepaintB = false;
// The various checks to see if we are still dirty...
m_dirty = false;
if (m_scale != scale)
m_dirty = true;
if (!fullRepaint)
m_currentDirtyArea->op(dirtyArea, SkRegion::kDifference_Op);
if (!m_currentDirtyArea->isEmpty())
m_dirty = true;
// Now we can swap the dirty areas
m_currentDirtyArea = m_currentDirtyArea == &m_dirtyAreaA ? &m_dirtyAreaB : &m_dirtyAreaA;
if (!m_currentDirtyArea->isEmpty())
m_dirty = true;
if (!m_dirty)
m_usable = true;
}
m_atomicSync.unlock();
}
int BaseTile::paintPartialBitmap(SkIRect r, float ptx, float pty,
float scale, BackedDoubleBufferedTexture* texture,
TextureInfo* textureInfo,
TiledPage* tiledPage, bool fullRepaint)
{
SkIRect rect = r;
float tx = ptx;
float ty = pty;
if (!texture->textureExist(textureInfo)) {
fullRepaint = true;
}
if ((rect.width() > TilesManager::instance()->tileWidth()) ||
(rect.height() > TilesManager::instance()->tileHeight()))
fullRepaint = true;
if (fullRepaint) {
rect.set(0, 0, TilesManager::instance()->tileWidth(),
TilesManager::instance()->tileHeight());
tx = - x() * TilesManager::instance()->tileWidth() / scale;
ty = - y() * TilesManager::instance()->tileHeight() / scale;
}
bool visualIndicator = TilesManager::instance()->getShowVisualIndicator();
bool measurePerf = fullRepaint && visualIndicator;
if (measurePerf)
m_perfMon.start(TAG_CREATE_BITMAP);
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, rect.width(), rect.height());
bitmap.allocPixels();
bitmap.eraseColor(0);
SkCanvas canvas(bitmap);
canvas.drawARGB(255, 255, 255, 255);
if (measurePerf) {
m_perfMon.stop(TAG_CREATE_BITMAP);
m_perfMon.start(TAG_RECORD_PICTURE);
}
SkPicture picture;
SkCanvas* nCanvas = picture.beginRecording(rect.width(), rect.height());
nCanvas->scale(scale, scale);
nCanvas->translate(tx, ty);
int pictureCount = tiledPage->paintBaseLayerContent(nCanvas);
picture.endRecording();
if (measurePerf) {
m_perfMon.stop(TAG_RECORD_PICTURE);
m_perfMon.start(TAG_DRAW_PICTURE);
}
if (visualIndicator)
canvas.save();
picture.draw(&canvas);
if (visualIndicator)
canvas.restore();
if (measurePerf) {
m_perfMon.stop(TAG_DRAW_PICTURE);
}
if (visualIndicator) {
int color = 20 + pictureCount % 100;
canvas.drawARGB(color, 0, 255, 0);
SkPaint paint;
paint.setARGB(128, 255, 0, 0);
paint.setStrokeWidth(3);
canvas.drawLine(0, 0, rect.width(), rect.height(), paint);
paint.setARGB(128, 0, 255, 0);
canvas.drawLine(0, rect.height(), rect.width(), 0, paint);
paint.setARGB(128, 0, 0, 255);
canvas.drawLine(0, 0, rect.width(), 0, paint);
canvas.drawLine(rect.width(), 0, rect.width(), rect.height(), paint);
drawTileInfo(&canvas, texture, x(), y(), scale, pictureCount);
}
if (!texture->textureExist(textureInfo)) {
GLUtils::createTextureWithBitmap(textureInfo->m_textureId, bitmap);
textureInfo->m_width = rect.width();
textureInfo->m_height = rect.height();
} else {
if (measurePerf)
m_perfMon.start(TAG_UPDATE_TEXTURE);
GLUtils::updateTextureWithBitmap(textureInfo->m_textureId, rect.fLeft, rect.fTop, bitmap);
if (measurePerf)
m_perfMon.stop(TAG_UPDATE_TEXTURE);
}
if (measurePerf)
m_perfMon.start(TAG_RESET_BITMAP);
bitmap.reset();
if (measurePerf)
m_perfMon.stop(TAG_RESET_BITMAP);
return pictureCount;
}
} // namespace WebCore
#endif // USE(ACCELERATED_COMPOSITING)
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