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Diffstat (limited to 'libs/rs/rsSampler.cpp')
-rw-r--r-- | libs/rs/rsSampler.cpp | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/libs/rs/rsSampler.cpp b/libs/rs/rsSampler.cpp new file mode 100644 index 0000000..3f56faa --- /dev/null +++ b/libs/rs/rsSampler.cpp @@ -0,0 +1,151 @@ +/* + * 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. + */ + +#include <GLES/gl.h> +#include <GLES/glext.h> + +#include "rsContext.h" +#include "rsSampler.h" + + +using namespace android; +using namespace android::renderscript; + + +Sampler::Sampler() +{ + // Should not get called. + rsAssert(0); +} + +Sampler::Sampler(RsSamplerValue magFilter, + RsSamplerValue minFilter, + RsSamplerValue wrapS, + RsSamplerValue wrapT, + RsSamplerValue wrapR) +{ + mMagFilter = magFilter; + mMinFilter = minFilter; + mWrapS = wrapS; + mWrapT = wrapT; + mWrapR = wrapR; +} + +Sampler::~Sampler() +{ +} + +void Sampler::setupGL() +{ + GLenum trans[] = { + GL_NEAREST, //RS_SAMPLER_NEAREST, + GL_LINEAR, //RS_SAMPLER_LINEAR, + GL_LINEAR_MIPMAP_LINEAR, //RS_SAMPLER_LINEAR_MIP_LINEAR, + GL_REPEAT, //RS_SAMPLER_WRAP, + GL_CLAMP_TO_EDGE, //RS_SAMPLER_CLAMP + + }; + + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, trans[mMinFilter]); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, trans[mMagFilter]); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, trans[mWrapS]); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, trans[mWrapT]); + +} + +void Sampler::bindToContext(SamplerState *ss, uint32_t slot) +{ + ss->mSamplers[slot].set(this); + mBoundSlot = slot; +} + +void Sampler::unbindFromContext(SamplerState *ss) +{ + int32_t slot = mBoundSlot; + mBoundSlot = -1; + ss->mSamplers[slot].clear(); +} + +void SamplerState::setupGL() +{ + for (uint32_t ct=0; ct < RS_MAX_SAMPLER_SLOT; ct++) { + Sampler *s = mSamplers[ct].get(); + if (s) { + s->setupGL(); + } else { + glBindTexture(GL_TEXTURE_2D, 0); + } + } +} + +//////////////////////////////// + +namespace android { +namespace renderscript { + + +void rsi_SamplerBegin(Context *rsc) +{ + SamplerState * ss = &rsc->mStateSampler; + + ss->mMagFilter = RS_SAMPLER_LINEAR; + ss->mMinFilter = RS_SAMPLER_LINEAR; + ss->mWrapS = RS_SAMPLER_WRAP; + ss->mWrapT = RS_SAMPLER_WRAP; + ss->mWrapR = RS_SAMPLER_WRAP; +} + +void rsi_SamplerSet(Context *rsc, RsSamplerParam param, RsSamplerValue value) +{ + SamplerState * ss = &rsc->mStateSampler; + + switch(param) { + case RS_SAMPLER_MAG_FILTER: + ss->mMagFilter = value; + break; + case RS_SAMPLER_MIN_FILTER: + ss->mMinFilter = value; + break; + case RS_SAMPLER_WRAP_S: + ss->mWrapS = value; + break; + case RS_SAMPLER_WRAP_T: + ss->mWrapT = value; + break; + case RS_SAMPLER_WRAP_R: + ss->mWrapR = value; + break; + } + +} + +RsSampler rsi_SamplerCreate(Context *rsc) +{ + SamplerState * ss = &rsc->mStateSampler; + + + Sampler * s = new Sampler(ss->mMagFilter, + ss->mMinFilter, + ss->mWrapS, + ss->mWrapT, + ss->mWrapR); + s->incUserRef(); + return s; +} + + +}} |