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 <GLES/gl.h>
18 #include <GLES/glext.h>
19
20 #include "rsContext.h"
21 #include "rsSampler.h"
22
23
24 using namespace android;
25 using namespace android::renderscript;
26
27
Sampler(Context * rsc)28 Sampler::Sampler(Context *rsc) : ObjectBase(rsc)
29 {
30 mAllocFile = __FILE__;
31 mAllocLine = __LINE__;
32 // Should not get called.
33 rsAssert(0);
34 }
35
Sampler(Context * rsc,RsSamplerValue magFilter,RsSamplerValue minFilter,RsSamplerValue wrapS,RsSamplerValue wrapT,RsSamplerValue wrapR)36 Sampler::Sampler(Context *rsc,
37 RsSamplerValue magFilter,
38 RsSamplerValue minFilter,
39 RsSamplerValue wrapS,
40 RsSamplerValue wrapT,
41 RsSamplerValue wrapR) : ObjectBase(rsc)
42 {
43 mAllocFile = __FILE__;
44 mAllocLine = __LINE__;
45 mMagFilter = magFilter;
46 mMinFilter = minFilter;
47 mWrapS = wrapS;
48 mWrapT = wrapT;
49 mWrapR = wrapR;
50 }
51
~Sampler()52 Sampler::~Sampler()
53 {
54 }
55
setupGL()56 void Sampler::setupGL()
57 {
58 GLenum trans[] = {
59 GL_NEAREST, //RS_SAMPLER_NEAREST,
60 GL_LINEAR, //RS_SAMPLER_LINEAR,
61 GL_LINEAR_MIPMAP_LINEAR, //RS_SAMPLER_LINEAR_MIP_LINEAR,
62 GL_REPEAT, //RS_SAMPLER_WRAP,
63 GL_CLAMP_TO_EDGE, //RS_SAMPLER_CLAMP
64
65 };
66
67
68 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, trans[mMinFilter]);
69 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, trans[mMagFilter]);
70 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, trans[mWrapS]);
71 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, trans[mWrapT]);
72
73 }
74
bindToContext(SamplerState * ss,uint32_t slot)75 void Sampler::bindToContext(SamplerState *ss, uint32_t slot)
76 {
77 ss->mSamplers[slot].set(this);
78 mBoundSlot = slot;
79 }
80
unbindFromContext(SamplerState * ss)81 void Sampler::unbindFromContext(SamplerState *ss)
82 {
83 int32_t slot = mBoundSlot;
84 mBoundSlot = -1;
85 ss->mSamplers[slot].clear();
86 }
87
setupGL()88 void SamplerState::setupGL()
89 {
90 for (uint32_t ct=0; ct < RS_MAX_SAMPLER_SLOT; ct++) {
91 Sampler *s = mSamplers[ct].get();
92 if (s) {
93 s->setupGL();
94 } else {
95 glBindTexture(GL_TEXTURE_2D, 0);
96 }
97 }
98 }
99
100 ////////////////////////////////
101
102 namespace android {
103 namespace renderscript {
104
105
rsi_SamplerBegin(Context * rsc)106 void rsi_SamplerBegin(Context *rsc)
107 {
108 SamplerState * ss = &rsc->mStateSampler;
109
110 ss->mMagFilter = RS_SAMPLER_LINEAR;
111 ss->mMinFilter = RS_SAMPLER_LINEAR;
112 ss->mWrapS = RS_SAMPLER_WRAP;
113 ss->mWrapT = RS_SAMPLER_WRAP;
114 ss->mWrapR = RS_SAMPLER_WRAP;
115 }
116
rsi_SamplerSet(Context * rsc,RsSamplerParam param,RsSamplerValue value)117 void rsi_SamplerSet(Context *rsc, RsSamplerParam param, RsSamplerValue value)
118 {
119 SamplerState * ss = &rsc->mStateSampler;
120
121 switch(param) {
122 case RS_SAMPLER_MAG_FILTER:
123 ss->mMagFilter = value;
124 break;
125 case RS_SAMPLER_MIN_FILTER:
126 ss->mMinFilter = value;
127 break;
128 case RS_SAMPLER_WRAP_S:
129 ss->mWrapS = value;
130 break;
131 case RS_SAMPLER_WRAP_T:
132 ss->mWrapT = value;
133 break;
134 case RS_SAMPLER_WRAP_R:
135 ss->mWrapR = value;
136 break;
137 }
138
139 }
140
rsi_SamplerCreate(Context * rsc)141 RsSampler rsi_SamplerCreate(Context *rsc)
142 {
143 SamplerState * ss = &rsc->mStateSampler;
144
145
146 Sampler * s = new Sampler(rsc,
147 ss->mMagFilter,
148 ss->mMinFilter,
149 ss->mWrapS,
150 ss->mWrapT,
151 ss->mWrapR);
152 s->incUserRef();
153 return s;
154 }
155
156
157 }}
158