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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.
*/
#ifndef TilesManager_h
#define TilesManager_h
#if USE(ACCELERATED_COMPOSITING)
#include "BackedDoubleBufferedTexture.h"
#include "BaseTile.h"
#include "LayerAndroid.h"
#include "LayerTexture.h"
#include "ShaderProgram.h"
#include "TexturesGenerator.h"
#include "TiledPage.h"
#include <utils/threads.h>
namespace WebCore {
class TileSet;
class TilesManager {
public:
static TilesManager* instance();
static GLint getMaxTextureSize();
static int getMaxTextureAllocation();
static bool hardwareAccelerationEnabled()
{
return gInstance != 0;
}
void removeOperationsForPage(TiledPage* page)
{
m_pixmapsGenerationThread->removeOperationsForPage(page);
}
void removeOperationsForBaseLayer(BaseLayerAndroid* layer)
{
m_pixmapsGenerationThread->removeOperationsForBaseLayer(layer);
}
void removeOperationsForTexture(LayerTexture* texture)
{
m_pixmapsGenerationThread->removeOperationsForTexture(texture);
}
void scheduleOperation(QueuedOperation* operation)
{
m_pixmapsGenerationThread->scheduleOperation(operation);
}
ShaderProgram* shader() { return &m_shader; }
BackedDoubleBufferedTexture* getAvailableTexture(BaseTile* owner);
void printLayersTextures(const char* s);
void cleanupLayersTextures(LayerAndroid* layer, bool forceCleanup = false);
LayerTexture* getExistingTextureForLayer(LayerAndroid* layer, const IntRect& rect,
bool any = false, LayerTexture* texture = 0);
LayerTexture* createTextureForLayer(LayerAndroid* layer, const IntRect& rect);
void markGeneratorAsReady()
{
{
android::Mutex::Autolock lock(m_generatorLock);
m_generatorReady = true;
}
m_generatorReadyCond.signal();
}
void printTextures();
void resetTextureUsage(TiledPage* page);
int maxLayersAllocation();
int maxLayerAllocation();
int maxTextureCount();
void setMaxTextureCount(int max);
static float tileWidth();
static float tileHeight();
int expandedTileBoundsX();
int expandedTileBoundsY();
void allocateTiles();
void setExpandedTileBounds(bool enabled) {
m_expandedTileBounds = enabled;
}
bool getShowVisualIndicator() {
return m_showVisualIndicator;
}
void setShowVisualIndicator(bool showVisualIndicator) {
m_showVisualIndicator = showVisualIndicator;
}
private:
TilesManager();
void waitForGenerator()
{
android::Mutex::Autolock lock(m_generatorLock);
while (!m_generatorReady)
m_generatorReadyCond.wait(m_generatorLock);
}
Vector<BackedDoubleBufferedTexture*> m_textures;
Vector<LayerTexture*> m_layersTextures;
unsigned int m_layersMemoryUsage;
int m_maxTextureCount;
bool m_expandedTileBounds;
bool m_generatorReady;
bool m_showVisualIndicator;
sp<TexturesGenerator> m_pixmapsGenerationThread;
android::Mutex m_texturesLock;
android::Mutex m_generatorLock;
android::Condition m_generatorReadyCond;
static TilesManager* gInstance;
ShaderProgram m_shader;
SkBitmap* m_tilesBitmap;
};
} // namespace WebCore
#endif // USE(ACCELERATED_COMPOSITING)
#endif // TilesManager_h
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