rsSampler.cpp revision 39c8bc7be5751ec52693d21abdf139c4dfd29a2c 
1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "rsContext.h"
18
19
20#include <GLES/gl.h>
21#include <GLES/glext.h>
22#include <utils/Log.h>
23
24#include "rsContext.h"
25#include "rsSampler.h"
26
27using namespace android;
28using namespace android::renderscript;
29
30
31Sampler::Sampler()
32{
33    // Should not get called.
34    rsAssert(0);
35}
36
37Sampler::Sampler(RsSamplerValue magFilter,
38                 RsSamplerValue minFilter,
39                 RsSamplerValue wrapS,
40                 RsSamplerValue wrapT,
41                 RsSamplerValue wrapR)
42{
43    mMagFilter = magFilter;
44    mMinFilter = minFilter;
45    mWrapS = wrapS;
46    mWrapT = wrapT;
47    mWrapR = wrapR;
48}
49
50Sampler::~Sampler()
51{
52}
53
54void Sampler::setupGL()
55{
56    GLenum translate[] = {
57        GL_NEAREST, //RS_SAMPLER_NEAREST,
58        GL_LINEAR, //RS_SAMPLER_LINEAR,
59        GL_LINEAR_MIP_LINEAR, //RS_SAMPLER_LINEAR_MIP_LINEAR,
60        GL_WRAP, //RS_SAMPLER_WRAP,
61        GL_CLAMP_TO_EDGS, //RS_SAMPLER_CLAMP
62
63    }
64
65
66    //LOGE("setup gl");
67    switch(mMagFilter) {
68    case RS_SAMPLER_
69    }
70
71    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
72    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
73    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
74    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
75
76}
77
78void Sampler::bindToContext(SamplerState *ss, uint32_t slot)
79{
80    ss->mSamplers[slot].set(this);
81    mBoundSlot = slot;
82}
83
84void Sampler::unbindFromContext(SamplerState *ss)
85{
86    int32_t slot = mBoundSlot;
87    mBoundSlot = -1;
88    ss->mSamplers[slot].clear();
89}
90
91void SamplerState::setupGL()
92{
93    for (uint32_t ct=0; ct < RS_MAX_SAMPLER_SLOT; ct++) {
94        Sampler *s = mSamplers[ct].get();
95        if (s) {
96            s->setupGL();
97        } else {
98            glBindTexture(GL_TEXTURE_2D, 0);
99        }
100    }
101}
102
103////////////////////////////////
104
105namespace android {
106namespace renderscript {
107
108
109void rsi_SamplerBegin(Context *rsc)
110{
111    SamplerState * ss = &rsc->mStateSampler;
112
113    ss->mMagFilter = RS_SAMPLER_LINEAR;
114    ss->mMinFilter = RS_SAMPLER_LINEAR;
115    ss->mWrapS = RS_SAMPLER_WRAP;
116    ss->mWrapT = RS_SAMPLER_WRAP;
117    ss->mWrapR = RS_SAMPLER_WRAP;
118}
119
120void rsi_SamplerSet(Context *rsc, RsSamplerParam param, RsSamplerValue value)
121{
122    SamplerState * ss = &rsc->mStateSampler;
123
124    switch(param) {
125    case RS_SAMPLER_MAG_FILTER:
126        ss->mMagFilter = value;
127        break;
128    case RS_SAMPLER_MIN_FILTER:
129        ss->mMinFilter = value;
130        break;
131    case RS_SAMPLER_WRAP_S:
132        ss->mWrapS = value;
133        break;
134    case RS_SAMPLER_WRAP_T:
135        ss->mWrapT = value;
136        break;
137    case RS_SAMPLER_WRAP_R:
138        ss->mWrapR = value;
139        break;
140    }
141
142}
143
144RsSampler rsi_SamplerCreate(Context *rsc)
145{
146    SamplerState * ss = &rsc->mStateSampler;
147
148
149    Sampler * s = new Sampler(ss->mMagFilter,
150                              ss->mMinFilter,
151                              ss->mWrapS,
152                              ss->mWrapT,
153                              ss->mWrapR);
154    return s;
155}
156
157void rsi_SamplerDestroy(Context *rsc, RsSampler vs)
158{
159    Sampler * s = static_cast<Sampler *>(vs);
160    s->decRef();
161
162}
163
164
165}}
166