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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 "BaseTileTexture.h"
#include "BaseTile.h"
#include "ClassTracker.h"
#include "DeleteTextureOperation.h"
#include "GLUtils.h"
#include "TilesManager.h"
#include <cutils/log.h>
#include <wtf/text/CString.h>
#undef XLOGC
#define XLOGC(...) android_printLog(ANDROID_LOG_DEBUG, "BaseTileTexture", __VA_ARGS__)
#ifdef DEBUG
#undef XLOG
#define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "BaseTileTexture", __VA_ARGS__)
#else
#undef XLOG
#define XLOG(...)
#endif // DEBUG
namespace WebCore {
BaseTileTexture::BaseTileTexture(uint32_t w, uint32_t h)
: m_owner(0)
, m_isPureColor(false)
{
m_size.set(w, h);
m_ownTextureId = 0;
// Make sure they are created on the UI thread.
TilesManager::instance()->transferQueue()->initSharedSurfaceTextures(w, h);
#ifdef DEBUG_COUNT
ClassTracker::instance()->increment("BaseTileTexture");
#endif
}
BaseTileTexture::~BaseTileTexture()
{
#ifdef DEBUG_COUNT
ClassTracker::instance()->decrement("BaseTileTexture");
#endif
}
void BaseTileTexture::requireGLTexture()
{
if (!m_ownTextureId)
m_ownTextureId = GLUtils::createBaseTileGLTexture(m_size.width(), m_size.height());
}
void BaseTileTexture::discardGLTexture()
{
if (m_ownTextureId)
GLUtils::deleteTexture(&m_ownTextureId);
if (m_owner) {
// clear both Tile->Texture and Texture->Tile links
m_owner->removeTexture(this);
release(m_owner);
}
}
bool BaseTileTexture::acquire(TextureOwner* owner, bool force)
{
if (m_owner == owner)
return true;
return setOwner(owner, force);
}
bool BaseTileTexture::setOwner(TextureOwner* owner, bool force)
{
bool proceed = true;
if (m_owner && m_owner != owner)
proceed = m_owner->removeTexture(this);
if (proceed) {
m_owner = owner;
return true;
}
return false;
}
bool BaseTileTexture::release(TextureOwner* owner)
{
XLOG("texture %p releasing tile %p, m_owner %p", this, owner, m_owner);
if (m_owner != owner)
return false;
m_owner = 0;
return true;
}
float BaseTileTexture::scale()
{
TextureTileInfo* textureInfo = &m_ownTextureTileInfo;
return textureInfo->m_scale;
}
// This function + TilesManager::addItemInTransferQueue() is replacing the
// setTile().
void BaseTileTexture::setOwnTextureTileInfoFromQueue(const TextureTileInfo* info)
{
m_ownTextureTileInfo.m_x = info->m_x;
m_ownTextureTileInfo.m_y = info->m_y;
m_ownTextureTileInfo.m_scale = info->m_scale;
m_ownTextureTileInfo.m_painter = info->m_painter;
m_ownTextureTileInfo.m_picture = info->m_picture;
m_ownTextureTileInfo.m_inverted = TilesManager::instance()->invertedScreen();
if (m_owner) {
BaseTile* owner = static_cast<BaseTile*>(m_owner);
owner->backTextureTransfer();
}
}
bool BaseTileTexture::readyFor(BaseTile* baseTile)
{
const TextureTileInfo* info = &m_ownTextureTileInfo;
if (isPureColor() && info->m_painter == baseTile->painter()) {
XLOG("ReadyFor saw a pureColor tile (%p) at (%d, %d), rgb %x",
this, baseTile->x(), baseTile->y(), pureColor().rgb());
return true;
}
if (info &&
(info->m_x == baseTile->x()) &&
(info->m_y == baseTile->y()) &&
(info->m_scale == baseTile->scale()) &&
(info->m_painter == baseTile->painter()) &&
(info->m_inverted == TilesManager::instance()->invertedScreen()))
return true;
XLOG("texture %p readyFor return false for tile x, y (%d %d) texId %d ,"
" BaseTileTexture %p, BaseTile is %p, SCALE %f, painter %p, inv %d",
this, baseTile->x(), baseTile->y(), m_ownTextureId, this, baseTile,
baseTile->scale(), baseTile->painter(), TilesManager::instance()->invertedScreen());
return false;
}
void BaseTileTexture::draw(bool isLayer, TilePainter* painter,
SkRect& rect, float transparency)
{
ShaderProgram* shader = TilesManager::instance()->shader();
if (isLayer && painter && painter->transform()) {
if (isPureColor()) {
shader->drawLayerQuad(*painter->transform(), rect, 0, transparency,
true, GL_TEXTURE_2D, pureColor());
} else {
shader->drawLayerQuad(*painter->transform(), rect, m_ownTextureId,
transparency, true);
}
} else {
if (isPureColor())
shader->drawQuad(rect, 0,transparency, pureColor());
else
shader->drawQuad(rect, m_ownTextureId, transparency);
}
}
} // namespace WebCore
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