rsProgramFragment.cpp revision 900f1616bf33c7ba13cf2a737832a95bcd176388 
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#ifndef ANDROID_RS_BUILD_FOR_HOST
18#include "rsContext.h"
19#include <GLES/gl.h>
20#include <GLES/glext.h>
21#include <GLES2/gl2.h>
22#include <GLES2/gl2ext.h>
23#else
24#include "rsContextHostStub.h"
25#include <OpenGL/gl.h>
26#include <OpenGL/glext.h>
27#endif //ANDROID_RS_BUILD_FOR_HOST
28
29#include "rsProgramFragment.h"
30
31using namespace android;
32using namespace android::renderscript;
33
34
35ProgramFragment::ProgramFragment(Context *rsc, const uint32_t * params,
36                                 uint32_t paramLength) :
37    Program(rsc)
38{
39    mAllocFile = __FILE__;
40    mAllocLine = __LINE__;
41    rsAssert(paramLength == 6);
42
43    mConstantColor[0] = 1.f;
44    mConstantColor[1] = 1.f;
45    mConstantColor[2] = 1.f;
46    mConstantColor[3] = 1.f;
47
48    mEnvModes[0] = (RsTexEnvMode)params[0];
49    mTextureFormats[0] = params[1];
50    mEnvModes[1] = (RsTexEnvMode)params[2];
51    mTextureFormats[1] = params[3];
52    mPointSpriteEnable = params[4] != 0;
53    mVaryingColor = false;
54    if (paramLength > 5)
55        mVaryingColor = params[5] != 0;
56
57    mTextureEnableMask = 0;
58    if (mEnvModes[0]) {
59        mTextureEnableMask |= 1;
60    }
61    if (mEnvModes[1]) {
62        mTextureEnableMask |= 2;
63    }
64
65    init(rsc);
66}
67
68ProgramFragment::ProgramFragment(Context *rsc, const char * shaderText,
69                                 uint32_t shaderLength, const uint32_t * params,
70                                 uint32_t paramLength) :
71    Program(rsc, shaderText, shaderLength, params, paramLength)
72{
73    mAllocFile = __FILE__;
74    mAllocLine = __LINE__;
75
76    mConstantColor[0] = 1.f;
77    mConstantColor[1] = 1.f;
78    mConstantColor[2] = 1.f;
79    mConstantColor[3] = 1.f;
80
81    LOGE("Custom FP");
82
83    mTextureEnableMask = (1 << mTextureCount) -1;
84
85    init(rsc);
86}
87
88
89ProgramFragment::~ProgramFragment()
90{
91}
92
93void ProgramFragment::setConstantColor(float r, float g, float b, float a)
94{
95    if(isUserProgram()) {
96        return;
97    }
98    mConstantColor[0] = r;
99    mConstantColor[1] = g;
100    mConstantColor[2] = b;
101    mConstantColor[3] = a;
102    memcpy(mConstants[0]->getPtr(), mConstantColor, 4*sizeof(float));
103    mDirty = true;
104}
105
106void ProgramFragment::setupGL2(const Context *rsc, ProgramFragmentState *state, ShaderCache *sc)
107{
108    //LOGE("sgl2 frag1 %x", glGetError());
109    if ((state->mLast.get() == this) && !mDirty) {
110        return;
111    }
112    state->mLast.set(this);
113
114    rsc->checkError("ProgramFragment::setupGL2 start");
115
116    rsc->checkError("ProgramFragment::setupGL2 begin uniforms");
117    setupUserConstants(sc, true);
118
119    for (uint32_t ct=0; ct < MAX_TEXTURE; ct++) {
120        glActiveTexture(GL_TEXTURE0 + ct);
121        if (!(mTextureEnableMask & (1 << ct)) || !mTextures[ct].get()) {
122            continue;
123        }
124
125        mTextures[ct]->uploadCheck(rsc);
126        glBindTexture(GL_TEXTURE_2D, mTextures[ct]->getTextureID());
127        rsc->checkError("ProgramFragment::setupGL2 tex bind");
128        if (mSamplers[ct].get()) {
129            mSamplers[ct]->setupGL(rsc, mTextures[ct].get());
130        } else {
131            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
132            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
133            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
134            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
135            rsc->checkError("ProgramFragment::setupGL2 tex env");
136        }
137
138        glUniform1i(sc->fragUniformSlot(mTextureUniformIndexStart + ct), ct);
139        rsc->checkError("ProgramFragment::setupGL2 uniforms");
140    }
141
142    glActiveTexture(GL_TEXTURE0);
143    mDirty = false;
144    rsc->checkError("ProgramFragment::setupGL2");
145}
146
147void ProgramFragment::loadShader(Context *rsc) {
148    Program::loadShader(rsc, GL_FRAGMENT_SHADER);
149}
150
151void ProgramFragment::createShader()
152{
153    if (mUserShader.length() > 1) {
154        mShader.append("precision mediump float;\n");
155        appendUserConstants();
156        for (uint32_t ct=0; ct < mTextureCount; ct++) {
157            char buf[256];
158            sprintf(buf, "uniform sampler2D UNI_Tex%i;\n", ct);
159            mShader.append(buf);
160        }
161        mShader.append(mUserShader);
162    } else {
163        LOGE("ProgramFragment::createShader cannot create program, shader code not defined");
164        rsAssert(0);
165    }
166}
167
168void ProgramFragment::init(Context *rsc)
169{
170    mUniformCount = 0;
171    if (mUserShader.size() > 0) {
172        for (uint32_t ct=0; ct < mConstantCount; ct++) {
173            initAddUserElement(mConstantTypes[ct]->getElement(), mUniformNames, &mUniformCount, "UNI_");
174        }
175    }
176    mTextureUniformIndexStart = mUniformCount;
177    mUniformNames[mUniformCount++].setTo("UNI_Tex0");
178    mUniformNames[mUniformCount++].setTo("UNI_Tex1");
179
180    createShader();
181}
182
183void ProgramFragment::serialize(OStream *stream) const
184{
185
186}
187
188ProgramFragment *ProgramFragment::createFromStream(Context *rsc, IStream *stream)
189{
190    return NULL;
191}
192
193ProgramFragmentState::ProgramFragmentState()
194{
195    mPF = NULL;
196}
197
198ProgramFragmentState::~ProgramFragmentState()
199{
200    delete mPF;
201
202}
203
204void ProgramFragmentState::init(Context *rsc)
205{
206    String8 shaderString(RS_SHADER_INTERNAL);
207    shaderString.append("varying lowp vec4 varColor;\n");
208    shaderString.append("varying vec4 varTex0;\n");
209    shaderString.append("void main() {\n");
210    shaderString.append("  lowp vec4 col = UNI_Color;\n");
211    shaderString.append("  gl_FragColor = col;\n");
212    shaderString.append("}\n");
213
214    const Element *colorElem = Element::create(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 4);
215    rsc->mStateElement.elementBuilderBegin();
216    rsc->mStateElement.elementBuilderAdd(colorElem, "Color", 1);
217    const Element *constInput = rsc->mStateElement.elementBuilderCreate(rsc);
218
219    Type *inputType = new Type(rsc);
220    inputType->setElement(constInput);
221    inputType->setDimX(1);
222    inputType->compute();
223
224    uint32_t tmp[4];
225    tmp[0] = RS_PROGRAM_PARAM_CONSTANT;
226    tmp[1] = (uint32_t)inputType;
227    tmp[2] = RS_PROGRAM_PARAM_TEXTURE_COUNT;
228    tmp[3] = 0;
229
230    Allocation *constAlloc = new Allocation(rsc, inputType);
231    ProgramFragment *pf = new ProgramFragment(rsc, shaderString.string(),
232                                              shaderString.length(), tmp, 4);
233    pf->bindAllocation(constAlloc, 0);
234    pf->setConstantColor(1.0f, 1.0f, 1.0f, 1.0f);
235
236    mDefault.set(pf);
237}
238
239void ProgramFragmentState::deinit(Context *rsc)
240{
241    mDefault.clear();
242    mLast.clear();
243}
244
245
246namespace android {
247namespace renderscript {
248
249RsProgramFragment rsi_ProgramFragmentCreate(Context *rsc,
250                                            const uint32_t * params,
251                                            uint32_t paramLength)
252{
253    ProgramFragment *pf = new ProgramFragment(rsc, params, paramLength);
254    pf->incUserRef();
255    //LOGE("rsi_ProgramFragmentCreate %p", pf);
256    return pf;
257}
258
259RsProgramFragment rsi_ProgramFragmentCreate2(Context *rsc, const char * shaderText,
260                             uint32_t shaderLength, const uint32_t * params,
261                             uint32_t paramLength)
262{
263    ProgramFragment *pf = new ProgramFragment(rsc, shaderText, shaderLength, params, paramLength);
264    pf->incUserRef();
265    //LOGE("rsi_ProgramFragmentCreate2 %p", pf);
266    return pf;
267}
268
269}
270}
271
272