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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_RS_SAMPLER_H
#define ANDROID_RS_SAMPLER_H
#include "rsAllocation.h"
// ---------------------------------------------------------------------------
namespace android {
namespace renderscript {
const static uint32_t RS_MAX_SAMPLER_SLOT = 16;
class SamplerState;
/*****************************************************************************
* CAUTION
*
* Any layout changes for this class may require a corresponding change to be
* made to frameworks/compile/libbcc/lib/ScriptCRT/rs_core.c, which contains
* a partial copy of the information below.
*
*****************************************************************************/
class Sampler : public ObjectBase {
public:
struct Hal {
mutable void *drv;
struct State {
RsSamplerValue magFilter;
RsSamplerValue minFilter;
RsSamplerValue wrapS;
RsSamplerValue wrapT;
RsSamplerValue wrapR;
float aniso;
};
State state;
};
Hal mHal;
void operator delete(void* ptr);
static ObjectBaseRef<Sampler> getSampler(Context *,
RsSamplerValue magFilter,
RsSamplerValue minFilter,
RsSamplerValue wrapS,
RsSamplerValue wrapT,
RsSamplerValue wrapR,
float aniso = 1.0f);
void bindToContext(SamplerState *, uint32_t slot);
void unbindFromContext(SamplerState *);
virtual void serialize(Context *rsc, OStream *stream) const;
virtual RsA3DClassID getClassId() const { return RS_A3D_CLASS_ID_SAMPLER; }
static Sampler *createFromStream(Context *rsc, IStream *stream);
protected:
int32_t mBoundSlot;
virtual void preDestroy() const;
virtual ~Sampler();
private:
Sampler(Context *);
Sampler(Context *,
RsSamplerValue magFilter,
RsSamplerValue minFilter,
RsSamplerValue wrapS,
RsSamplerValue wrapT,
RsSamplerValue wrapR,
float aniso = 1.0f);
};
class SamplerState {
public:
ObjectBaseRef<Sampler> mSamplers[RS_MAX_SAMPLER_SLOT];
void init(Context *rsc) {
}
void deinit(Context *rsc) {
for (uint32_t i = 0; i < RS_MAX_SAMPLER_SLOT; i ++) {
mSamplers[i].clear();
}
}
// Cache of all existing raster programs.
Vector<Sampler *> mAllSamplers;
};
}
}
#endif //ANDROID_RS_SAMPLER_H
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