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#ifndef __TRANSFORMFEEDBACKSKINNEDMESH_H__
#define __TRANSFORMFEEDBACKSKINNEDMESH_H__
#include "Runtime/GfxDevice/GPUSkinningInfo.h"
#include "Runtime/GfxDevice/opengles30/IncludesGLES30.h"
#include "Runtime/GfxDevice/opengles30/DataBuffersGLES30.h"
#include <vector>
class GfxDeviceGLES30;
// Transform Feedback mesh skinning data.
// Source and destination VBO formats must match.
class TransformFeedbackSkinningInfo : public GPUSkinningInfo
{
friend class GfxDeviceGLES30;
private:
GLuint m_SourceVBO;
GLsizei m_SourceVBOSize;
std::vector<float> m_CachedPose;
DataBufferGLES30 *m_MatrixBuffer;
//! Stores the bone count from the previous call to UpdateSourceBones. Used to select the most suitable shader version.
int m_BoneCount;
UInt32 GetVertexSize();
bool EnsureBuffer();
TransformFeedbackSkinningInfo() : GPUSkinningInfo(),
m_SourceVBO(0), m_SourceVBOSize(0), m_MatrixBuffer(0), m_BoneCount(0)
{}
virtual ~TransformFeedbackSkinningInfo();
virtual void UpdateSourceData(const void *vertData, const BoneInfluence *skinData, bool dirty);
virtual void UpdateSourceBones(const int boneCount, const Matrix4x4f* cachedPose);
virtual void SkinMesh(bool last);
public:
//! Release shaders that have been created for transform feedback use.
static void CleanupTransformFeedbackShaders(void);
};
#endif
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