rsProgramVertex.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 "rsProgramVertex.h"
30
31using namespace android;
32using namespace android::renderscript;
33
34
35ProgramVertex::ProgramVertex(Context *rsc, bool texMat) :
36    Program(rsc)
37{
38    mAllocFile = __FILE__;
39    mAllocLine = __LINE__;
40    mTextureMatrixEnable = texMat;
41    mLightCount = 0;
42    init(rsc);
43}
44
45ProgramVertex::ProgramVertex(Context *rsc, const char * shaderText,
46                             uint32_t shaderLength, const uint32_t * params,
47                             uint32_t paramLength) :
48    Program(rsc, shaderText, shaderLength, params, paramLength)
49{
50    mAllocFile = __FILE__;
51    mAllocLine = __LINE__;
52    mTextureMatrixEnable = false;
53    mLightCount = 0;
54
55    init(rsc);
56}
57
58ProgramVertex::~ProgramVertex()
59{
60}
61
62static void logMatrix(const char *txt, const float *f)
63{
64    LOGV("Matrix %s, %p", txt, f);
65    LOGV("%6.4f, %6.4f, %6.4f, %6.4f", f[0], f[4], f[8], f[12]);
66    LOGV("%6.4f, %6.4f, %6.4f, %6.4f", f[1], f[5], f[9], f[13]);
67    LOGV("%6.4f, %6.4f, %6.4f, %6.4f", f[2], f[6], f[10], f[14]);
68    LOGV("%6.4f, %6.4f, %6.4f, %6.4f", f[3], f[7], f[11], f[15]);
69}
70
71void ProgramVertex::loadShader(Context *rsc) {
72    Program::loadShader(rsc, GL_VERTEX_SHADER);
73}
74
75void ProgramVertex::createShader()
76{
77    if (mUserShader.length() > 1) {
78
79        appendUserConstants();
80
81        for (uint32_t ct=0; ct < mInputCount; ct++) {
82            const Element *e = mInputElements[ct].get();
83            for (uint32_t field=0; field < e->getFieldCount(); field++) {
84                const Element *f = e->getField(field);
85                const char *fn = e->getFieldName(field);
86
87                if (fn[0] == '#') {
88                    continue;
89                }
90
91                // Cannot be complex
92                rsAssert(!f->getFieldCount());
93                switch(f->getComponent().getVectorSize()) {
94                case 1: mShader.append("attribute float ATTRIB_"); break;
95                case 2: mShader.append("attribute vec2 ATTRIB_"); break;
96                case 3: mShader.append("attribute vec3 ATTRIB_"); break;
97                case 4: mShader.append("attribute vec4 ATTRIB_"); break;
98                default:
99                    rsAssert(0);
100                }
101
102                mShader.append(fn);
103                mShader.append(";\n");
104            }
105        }
106        mShader.append(mUserShader);
107    } else {
108        LOGE("ProgramFragment::createShader cannot create program, shader code not defined");
109        rsAssert(0);
110    }
111}
112
113void ProgramVertex::setupGL2(const Context *rsc, ProgramVertexState *state, ShaderCache *sc)
114{
115    //LOGE("sgl2 vtx1 %x", glGetError());
116    if ((state->mLast.get() == this) && !mDirty) {
117        return;
118    }
119
120    rsc->checkError("ProgramVertex::setupGL2 start");
121
122    if(!isUserProgram()) {
123        float *f = static_cast<float *>(mConstants[0]->getPtr());
124        Matrix mvp;
125        mvp.load(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
126        Matrix t;
127        t.load(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET]);
128        mvp.multiply(&t);
129        for(uint32_t i = 0; i < 16; i ++) {
130            f[RS_PROGRAM_VERTEX_MVP_OFFSET + i] = mvp.m[i];
131        }
132    }
133
134    rsc->checkError("ProgramVertex::setupGL2 begin uniforms");
135    setupUserConstants(sc, false);
136
137    state->mLast.set(this);
138    rsc->checkError("ProgramVertex::setupGL2");
139}
140
141void ProgramVertex::addLight(const Light *l)
142{
143    if (mLightCount < MAX_LIGHTS) {
144        mLights[mLightCount].set(l);
145        mLightCount++;
146    }
147}
148
149void ProgramVertex::setProjectionMatrix(const rsc_Matrix *m) const
150{
151    if(isUserProgram()) {
152        return;
153    }
154    float *f = static_cast<float *>(mConstants[0]->getPtr());
155    memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m, sizeof(rsc_Matrix));
156    mDirty = true;
157}
158
159void ProgramVertex::setModelviewMatrix(const rsc_Matrix *m) const
160{
161    if(isUserProgram()) {
162        return;
163    }
164    float *f = static_cast<float *>(mConstants[0]->getPtr());
165    memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m, sizeof(rsc_Matrix));
166    mDirty = true;
167}
168
169void ProgramVertex::setTextureMatrix(const rsc_Matrix *m) const
170{
171    if(isUserProgram()) {
172        return;
173    }
174    float *f = static_cast<float *>(mConstants[0]->getPtr());
175    memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m, sizeof(rsc_Matrix));
176    mDirty = true;
177}
178
179void ProgramVertex::getProjectionMatrix(rsc_Matrix *m) const
180{
181    if(isUserProgram()) {
182        return;
183    }
184    float *f = static_cast<float *>(mConstants[0]->getPtr());
185    memcpy(m, &f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], sizeof(rsc_Matrix));
186}
187
188void ProgramVertex::transformToScreen(const Context *rsc, float *v4out, const float *v3in) const
189{
190    if(isUserProgram()) {
191        return;
192    }
193    float *f = static_cast<float *>(mConstants[0]->getPtr());
194    Matrix mvp;
195    mvp.loadMultiply((Matrix *)&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET],
196                     (Matrix *)&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
197    mvp.vectorMultiply(v4out, v3in);
198}
199
200void ProgramVertex::init(Context *rsc)
201{
202    mAttribCount = 0;
203    if (mUserShader.size() > 0) {
204        for (uint32_t ct=0; ct < mInputCount; ct++) {
205            initAddUserElement(mInputElements[ct].get(), mAttribNames, &mAttribCount, "ATTRIB_");
206        }
207
208        mUniformCount = 0;
209        for (uint32_t ct=0; ct < mConstantCount; ct++) {
210            initAddUserElement(mConstantTypes[ct]->getElement(), mUniformNames, &mUniformCount, "UNI_");
211        }
212    }
213    createShader();
214}
215
216void ProgramVertex::serialize(OStream *stream) const
217{
218
219}
220
221ProgramVertex *ProgramVertex::createFromStream(Context *rsc, IStream *stream)
222{
223    return NULL;
224}
225
226
227///////////////////////////////////////////////////////////////////////
228
229ProgramVertexState::ProgramVertexState()
230{
231}
232
233ProgramVertexState::~ProgramVertexState()
234{
235}
236
237void ProgramVertexState::init(Context *rsc)
238{
239    const Element *matrixElem = Element::create(rsc, RS_TYPE_MATRIX_4X4, RS_KIND_USER, false, 1);
240    const Element *f3Elem = Element::create(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 3);
241    const Element *f4Elem = Element::create(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 4);
242
243    rsc->mStateElement.elementBuilderBegin();
244    rsc->mStateElement.elementBuilderAdd(matrixElem, "MV", 1);
245    rsc->mStateElement.elementBuilderAdd(matrixElem, "P", 1);
246    rsc->mStateElement.elementBuilderAdd(matrixElem, "TexMatrix", 1);
247    rsc->mStateElement.elementBuilderAdd(matrixElem, "MVP", 1);
248    const Element *constInput = rsc->mStateElement.elementBuilderCreate(rsc);
249
250    rsc->mStateElement.elementBuilderBegin();
251    rsc->mStateElement.elementBuilderAdd(f4Elem, "position", 1);
252    rsc->mStateElement.elementBuilderAdd(f4Elem, "color", 1);
253    rsc->mStateElement.elementBuilderAdd(f3Elem, "normal", 1);
254    rsc->mStateElement.elementBuilderAdd(f4Elem, "texture0", 1);
255    const Element *attrElem = rsc->mStateElement.elementBuilderCreate(rsc);
256
257    Type *inputType = new Type(rsc);
258    inputType->setElement(constInput);
259    inputType->setDimX(1);
260    inputType->compute();
261
262    String8 shaderString(RS_SHADER_INTERNAL);
263    shaderString.append("varying vec4 varColor;\n");
264    shaderString.append("varying vec4 varTex0;\n");
265    shaderString.append("void main() {\n");
266    shaderString.append("  gl_Position = UNI_MVP * ATTRIB_position;\n");
267    shaderString.append("  gl_PointSize = 1.0;\n");
268    shaderString.append("  varColor = ATTRIB_color;\n");
269    shaderString.append("  varTex0 = ATTRIB_texture0;\n");
270    shaderString.append("}\n");
271
272    uint32_t tmp[6];
273    tmp[0] = RS_PROGRAM_PARAM_CONSTANT;
274    tmp[1] = (uint32_t)inputType;
275    tmp[2] = RS_PROGRAM_PARAM_INPUT;
276    tmp[3] = (uint32_t)attrElem;
277    tmp[4] = RS_PROGRAM_PARAM_TEXTURE_COUNT;
278    tmp[5] = 0;
279
280    ProgramVertex *pv = new ProgramVertex(rsc, shaderString.string(),
281                                          shaderString.length(), tmp, 6);
282    Allocation *alloc = new Allocation(rsc, inputType);
283    pv->bindAllocation(alloc, 0);
284
285    mDefaultAlloc.set(alloc);
286    mDefault.set(pv);
287    pv->bindAllocation(alloc, 0);
288
289    updateSize(rsc);
290
291}
292
293void ProgramVertexState::updateSize(Context *rsc)
294{
295    float *f = static_cast<float *>(mDefaultAlloc->getPtr());
296
297    Matrix m;
298    m.loadOrtho(0,rsc->getWidth(), rsc->getHeight(),0, -1,1);
299    memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m.m, sizeof(m));
300    memcpy(&f[RS_PROGRAM_VERTEX_MVP_OFFSET], m.m, sizeof(m));
301
302    m.loadIdentity();
303    memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m.m, sizeof(m));
304    memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m.m, sizeof(m));
305}
306
307void ProgramVertexState::deinit(Context *rsc)
308{
309    mDefaultAlloc.clear();
310    mDefault.clear();
311    mLast.clear();
312}
313
314
315namespace android {
316namespace renderscript {
317
318
319RsProgramVertex rsi_ProgramVertexCreate(Context *rsc, bool texMat)
320{
321    ProgramVertex *pv = new ProgramVertex(rsc, texMat);
322    pv->incUserRef();
323    return pv;
324}
325
326RsProgramVertex rsi_ProgramVertexCreate2(Context *rsc, const char * shaderText,
327                             uint32_t shaderLength, const uint32_t * params,
328                             uint32_t paramLength)
329{
330    ProgramVertex *pv = new ProgramVertex(rsc, shaderText, shaderLength, params, paramLength);
331    pv->incUserRef();
332    return pv;
333}
334
335
336}
337}
338