/usr/include/cegui-0.8.4/CEGUI/RendererModules/Ogre/GeometryBuffer.h is in libcegui-mk2-dev 0.8.4+dfsg-4ubuntu1.
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created: Tue Feb 17 2009
author: Paul D Turner
*************************************************************************/
/***************************************************************************
* Copyright (C) 2004 - 2011 Paul D Turner & The CEGUI Development Team
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
***************************************************************************/
#ifndef _CEGUIOgreGeometryBuffer_h_
#define _CEGUIOgreGeometryBuffer_h_
#include "CEGUI/GeometryBuffer.h"
#include "CEGUI/RendererModules/Ogre/Renderer.h"
#include "CEGUI/Rect.h"
#include "CEGUI/Quaternion.h"
#include <OgreMatrix4.h>
#include <OgreColourValue.h>
#include <OgreRenderOperation.h>
#include <OgreTexture.h>
#include <utility>
#include <vector>
// Ogre forward refs
namespace Ogre
{
class RenderSystem;
}
// Start of CEGUI namespace section
namespace CEGUI
{
//! Implementation of CEGUI::GeometryBuffer for the Ogre engine
class OGRE_GUIRENDERER_API OgreGeometryBuffer : public GeometryBuffer
{
public:
//! Constructor
OgreGeometryBuffer(OgreRenderer& owner, Ogre::RenderSystem& rs);
//! Destructor
virtual ~OgreGeometryBuffer();
//! return the transformation matrix used for this buffer.
const Ogre::Matrix4& getMatrix() const;
// implement CEGUI::GeometryBuffer interface.
virtual void draw() const;
virtual void setTranslation(const Vector3f& v);
virtual void setRotation(const Quaternion& r);
virtual void setPivot(const Vector3f& p);
virtual void setClippingRegion(const Rectf& region);
virtual void appendVertex(const Vertex& vertex);
virtual void appendGeometry(const Vertex* const vbuff, uint vertex_count);
virtual void setActiveTexture(Texture* texture);
virtual void reset();
virtual Texture* getActiveTexture() const;
virtual uint getVertexCount() const;
virtual uint getBatchCount() const;
virtual void setRenderEffect(RenderEffect* effect);
virtual RenderEffect* getRenderEffect();
void setClippingActive(const bool active);
bool isClippingActive() const;
protected:
//! convert CEGUI::colour into something Ogre can use
Ogre::RGBA colourToOgre(const Colour& col) const;
//! update cached matrix
void updateMatrix() const;
//! Synchronise data in the hardware buffer with what's been added
void syncHardwareBuffer() const;
//! set up texture related states
void initialiseTextureStates() const;
//! vertex structure used internally and also by Ogre.
struct OgreVertex
{
float x, y, z;
Ogre::RGBA diffuse;
float u, v;
};
//! type to track info for per-texture sub batches of geometry
struct BatchInfo
{
Ogre::TexturePtr texture;
uint vertexCount;
bool clip;
};
//! Renderer object that owns this GeometryBuffer
OgreRenderer& d_owner;
//! Ogre render system we're to use.
Ogre::RenderSystem& d_renderSystem;
//! Texture that is set as active
OgreTexture* d_activeTexture;
//! rectangular clip region
Rectf d_clipRect;
//! whether clipping will be active for the current batch
bool d_clippingActive;
//! translation vector
Vector3f d_translation;
//! rotation quaternion
Quaternion d_rotation;
//! pivot point for rotation
Vector3f d_pivot;
//! RenderEffect that will be used by the GeometryBuffer
RenderEffect* d_effect;
//! offset to be applied to all geometry
Vector2f d_texelOffset;
//! model matrix cache
mutable Ogre::Matrix4 d_matrix;
//! true when d_matrix is valid and up to date
mutable bool d_matrixValid;
//! Render operation for this buffer.
mutable Ogre::RenderOperation d_renderOp;
//! H/W buffer where the vertices are rendered from.
mutable Ogre::HardwareVertexBufferSharedPtr d_hwBuffer;
//! whether the h/w buffer is in sync with the added geometry
mutable bool d_sync;
//! type of container that tracks BatchInfos.
typedef std::vector<BatchInfo> BatchList;
//! list of texture batches added to the geometry buffer
BatchList d_batches;
//! type of container used to queue the geometry
typedef std::vector<OgreVertex> VertexList;
//! container where added geometry is stored.
VertexList d_vertices;
};
} // End of CEGUI namespace section
#endif // end of guard _CEGUIOgreGeometryBuffer_h_
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