172 lines
4.2 KiB
C++
172 lines
4.2 KiB
C++
/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <GLES/gl.h>
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#include <GLES/glext.h>
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#include "rsContext.h"
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#include "rsSampler.h"
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using namespace android;
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using namespace android::renderscript;
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Sampler::Sampler(Context *rsc) : ObjectBase(rsc)
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{
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mAllocFile = __FILE__;
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mAllocLine = __LINE__;
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// Should not get called.
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rsAssert(0);
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}
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Sampler::Sampler(Context *rsc,
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RsSamplerValue magFilter,
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RsSamplerValue minFilter,
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RsSamplerValue wrapS,
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RsSamplerValue wrapT,
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RsSamplerValue wrapR) : ObjectBase(rsc)
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{
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mAllocFile = __FILE__;
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mAllocLine = __LINE__;
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mMagFilter = magFilter;
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mMinFilter = minFilter;
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mWrapS = wrapS;
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mWrapT = wrapT;
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mWrapR = wrapR;
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}
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Sampler::~Sampler()
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{
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}
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void Sampler::setupGL(const Context *rsc, bool npot)
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{
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GLenum trans[] = {
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GL_NEAREST, //RS_SAMPLER_NEAREST,
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GL_LINEAR, //RS_SAMPLER_LINEAR,
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GL_LINEAR_MIPMAP_LINEAR, //RS_SAMPLER_LINEAR_MIP_LINEAR,
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GL_REPEAT, //RS_SAMPLER_WRAP,
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GL_CLAMP_TO_EDGE, //RS_SAMPLER_CLAMP
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};
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bool forceNonMip = false;
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if (!rsc->ext_OES_texture_npot() && npot) {
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forceNonMip = true;
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}
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if ((mMinFilter == RS_SAMPLER_LINEAR_MIP_LINEAR) && forceNonMip) {
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if (rsc->ext_GL_IMG_texture_npot()) {
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
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} else {
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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}
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} else {
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, trans[mMinFilter]);
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}
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, trans[mMagFilter]);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, trans[mWrapS]);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, trans[mWrapT]);
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rsc->checkError("ProgramFragment::setupGL2 tex env");
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}
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void Sampler::bindToContext(SamplerState *ss, uint32_t slot)
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{
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ss->mSamplers[slot].set(this);
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mBoundSlot = slot;
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}
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void Sampler::unbindFromContext(SamplerState *ss)
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{
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int32_t slot = mBoundSlot;
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mBoundSlot = -1;
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ss->mSamplers[slot].clear();
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}
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/*
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void SamplerState::setupGL()
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{
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for (uint32_t ct=0; ct < RS_MAX_SAMPLER_SLOT; ct++) {
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Sampler *s = mSamplers[ct].get();
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if (s) {
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s->setupGL(rsc);
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} else {
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glBindTexture(GL_TEXTURE_2D, 0);
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}
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}
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}*/
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////////////////////////////////
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namespace android {
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namespace renderscript {
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void rsi_SamplerBegin(Context *rsc)
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{
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SamplerState * ss = &rsc->mStateSampler;
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ss->mMagFilter = RS_SAMPLER_LINEAR;
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ss->mMinFilter = RS_SAMPLER_LINEAR;
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ss->mWrapS = RS_SAMPLER_WRAP;
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ss->mWrapT = RS_SAMPLER_WRAP;
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ss->mWrapR = RS_SAMPLER_WRAP;
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}
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void rsi_SamplerSet(Context *rsc, RsSamplerParam param, RsSamplerValue value)
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{
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SamplerState * ss = &rsc->mStateSampler;
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switch(param) {
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case RS_SAMPLER_MAG_FILTER:
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ss->mMagFilter = value;
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break;
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case RS_SAMPLER_MIN_FILTER:
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ss->mMinFilter = value;
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break;
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case RS_SAMPLER_WRAP_S:
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ss->mWrapS = value;
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break;
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case RS_SAMPLER_WRAP_T:
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ss->mWrapT = value;
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break;
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case RS_SAMPLER_WRAP_R:
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ss->mWrapR = value;
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break;
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}
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}
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RsSampler rsi_SamplerCreate(Context *rsc)
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{
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SamplerState * ss = &rsc->mStateSampler;
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Sampler * s = new Sampler(rsc,
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ss->mMagFilter,
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ss->mMinFilter,
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ss->mWrapS,
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ss->mWrapT,
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ss->mWrapR);
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s->incUserRef();
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return s;
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}
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}}
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