111 lines
3 KiB
C
111 lines
3 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file shaderBuffer.h
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* @author rdb
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* @date 2016-12-12
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*/
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#ifndef SHADERBUFFER_H
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#define SHADERBUFFER_H
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#include "pandabase.h"
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#include "typedWritableReferenceCount.h"
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#include "namable.h"
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#include "geomEnums.h"
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#include "graphicsStateGuardianBase.h"
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#include "factoryParams.h"
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#include "vector_uchar.h"
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class BufferContext;
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class PreparedGraphicsObjects;
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/**
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* This is a generic buffer object that lives in graphics memory.
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*
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* @since 1.10.0
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*/
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class EXPCL_PANDA_GOBJ ShaderBuffer : public TypedWritableReferenceCount, public Namable, public GeomEnums {
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private:
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INLINE ShaderBuffer() = default;
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PUBLISHED:
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~ShaderBuffer();
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INLINE explicit ShaderBuffer(const std::string &name, uint64_t size, UsageHint usage_hint);
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INLINE explicit ShaderBuffer(const std::string &name, vector_uchar initial_data, UsageHint usage_hint);
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public:
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INLINE uint64_t get_data_size_bytes() const;
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INLINE UsageHint get_usage_hint() const;
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INLINE const unsigned char *get_initial_data() const;
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virtual void output(std::ostream &out) const;
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PUBLISHED:
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MAKE_PROPERTY(data_size_bytes, get_data_size_bytes);
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MAKE_PROPERTY(usage_hint, get_usage_hint);
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void prepare(PreparedGraphicsObjects *prepared_objects);
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bool is_prepared(PreparedGraphicsObjects *prepared_objects) const;
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BufferContext *prepare_now(PreparedGraphicsObjects *prepared_objects,
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GraphicsStateGuardianBase *gsg);
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bool release(PreparedGraphicsObjects *prepared_objects);
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int release_all();
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private:
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void clear_prepared(PreparedGraphicsObjects *prepared_objects);
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private:
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uint64_t _data_size_bytes;
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UsageHint _usage_hint;
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vector_uchar _initial_data;
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typedef pmap<PreparedGraphicsObjects *, BufferContext *> Contexts;
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Contexts *_contexts = nullptr;
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public:
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static void register_with_read_factory();
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virtual void write_datagram(BamWriter *manager, Datagram &dg);
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protected:
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static TypedWritable *make_from_bam(const FactoryParams ¶ms);
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void fillin(DatagramIterator &scan, BamReader *manager);
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public:
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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TypedWritableReferenceCount::init_type();
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Namable::init_type();
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register_type(_type_handle, "ShaderBuffer",
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TypedWritableReferenceCount::get_class_type(),
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Namable::get_class_type());
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}
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private:
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static TypeHandle _type_handle;
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friend class PreparedGraphicsObjects;
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};
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INLINE std::ostream &operator << (std::ostream &out, const ShaderBuffer &m) {
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m.output(out);
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return out;
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}
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#include "shaderBuffer.I"
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#endif
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