rsProgramVertex.cpp revision e7ae69f4a70f1813cf8086ebd9714192c635300a 
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::setupGL(const Context *rsc, ProgramVertexState *state)
72{
73    assert(0);
74}
75
76void ProgramVertex::loadShader(Context *rsc) {
77    Program::loadShader(rsc, GL_VERTEX_SHADER);
78}
79
80void ProgramVertex::createShader()
81{
82    if (mUserShader.length() > 1) {
83
84        appendUserConstants();
85
86        for (uint32_t ct=0; ct < mInputCount; ct++) {
87            const Element *e = mInputElements[ct].get();
88            for (uint32_t field=0; field < e->getFieldCount(); field++) {
89                const Element *f = e->getField(field);
90                const char *fn = e->getFieldName(field);
91
92                if (fn[0] == '#') {
93                    continue;
94                }
95
96                // Cannot be complex
97                rsAssert(!f->getFieldCount());
98                switch(f->getComponent().getVectorSize()) {
99                case 1: mShader.append("attribute float ATTRIB_"); break;
100                case 2: mShader.append("attribute vec2 ATTRIB_"); break;
101                case 3: mShader.append("attribute vec3 ATTRIB_"); break;
102                case 4: mShader.append("attribute vec4 ATTRIB_"); break;
103                default:
104                    rsAssert(0);
105                }
106
107                mShader.append(fn);
108                mShader.append(";\n");
109            }
110        }
111        mShader.append(mUserShader);
112    } else {
113        LOGE("ProgramFragment::createShader cannot create program, shader code not defined");
114        rsAssert(0);
115    }
116}
117
118void ProgramVertex::setupGL2(const Context *rsc, ProgramVertexState *state, ShaderCache *sc)
119{
120    //LOGE("sgl2 vtx1 %x", glGetError());
121    if ((state->mLast.get() == this) && !mDirty) {
122        return;
123    }
124
125    rsc->checkError("ProgramVertex::setupGL2 start");
126
127    if(!isUserProgram()) {
128        float *f = static_cast<float *>(mConstants[0]->getPtr());
129        Matrix mvp;
130        mvp.load(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
131        Matrix t;
132        t.load(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET]);
133        mvp.multiply(&t);
134        for(uint32_t i = 0; i < 16; i ++) {
135            f[RS_PROGRAM_VERTEX_MVP_OFFSET + i] = mvp.m[i];
136        }
137    }
138
139    rsc->checkError("ProgramVertex::setupGL2 begin uniforms");
140    setupUserConstants(sc, false);
141
142    state->mLast.set(this);
143    rsc->checkError("ProgramVertex::setupGL2");
144}
145
146void ProgramVertex::addLight(const Light *l)
147{
148    if (mLightCount < MAX_LIGHTS) {
149        mLights[mLightCount].set(l);
150        mLightCount++;
151    }
152}
153
154void ProgramVertex::setProjectionMatrix(const rsc_Matrix *m) const
155{
156    if(isUserProgram()) {
157        return;
158    }
159    float *f = static_cast<float *>(mConstants[0]->getPtr());
160    memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m, sizeof(rsc_Matrix));
161    mDirty = true;
162}
163
164void ProgramVertex::setModelviewMatrix(const rsc_Matrix *m) const
165{
166    if(isUserProgram()) {
167        return;
168    }
169    float *f = static_cast<float *>(mConstants[0]->getPtr());
170    memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m, sizeof(rsc_Matrix));
171    mDirty = true;
172}
173
174void ProgramVertex::setTextureMatrix(const rsc_Matrix *m) const
175{
176    if(isUserProgram()) {
177        return;
178    }
179    float *f = static_cast<float *>(mConstants[0]->getPtr());
180    memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m, sizeof(rsc_Matrix));
181    mDirty = true;
182}
183
184void ProgramVertex::getProjectionMatrix(rsc_Matrix *m) const
185{
186    if(isUserProgram()) {
187        return;
188    }
189    float *f = static_cast<float *>(mConstants[0]->getPtr());
190    memcpy(m, &f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], sizeof(rsc_Matrix));
191}
192
193void ProgramVertex::transformToScreen(const Context *rsc, float *v4out, const float *v3in) const
194{
195    if(isUserProgram()) {
196        return;
197    }
198    float *f = static_cast<float *>(mConstants[0]->getPtr());
199    Matrix mvp;
200    mvp.loadMultiply((Matrix *)&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET],
201                     (Matrix *)&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
202    mvp.vectorMultiply(v4out, v3in);
203}
204
205void ProgramVertex::init(Context *rsc)
206{
207    mAttribCount = 0;
208    if (mUserShader.size() > 0) {
209        for (uint32_t ct=0; ct < mInputCount; ct++) {
210            initAddUserElement(mInputElements[ct].get(), mAttribNames, &mAttribCount, "ATTRIB_");
211        }
212
213        mUniformCount = 0;
214        for (uint32_t ct=0; ct < mConstantCount; ct++) {
215            initAddUserElement(mConstantTypes[ct]->getElement(), mUniformNames, &mUniformCount, "UNI_");
216        }
217    }
218    createShader();
219}
220
221void ProgramVertex::serialize(OStream *stream) const
222{
223
224}
225
226ProgramVertex *ProgramVertex::createFromStream(Context *rsc, IStream *stream)
227{
228    return NULL;
229}
230
231
232///////////////////////////////////////////////////////////////////////
233
234ProgramVertexState::ProgramVertexState()
235{
236}
237
238ProgramVertexState::~ProgramVertexState()
239{
240}
241
242void ProgramVertexState::init(Context *rsc)
243{
244    const Element *matrixElem = Element::create(rsc, RS_TYPE_MATRIX_4X4, RS_KIND_USER, false, 1);
245    const Element *f3Elem = Element::create(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 3);
246    const Element *f4Elem = Element::create(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 4);
247
248    rsc->mStateElement.elementBuilderBegin();
249    rsc->mStateElement.elementBuilderAdd(matrixElem, "MV", 1);
250    rsc->mStateElement.elementBuilderAdd(matrixElem, "P", 1);
251    rsc->mStateElement.elementBuilderAdd(matrixElem, "TexMatrix", 1);
252    rsc->mStateElement.elementBuilderAdd(matrixElem, "MVP", 1);
253    const Element *constInput = rsc->mStateElement.elementBuilderCreate(rsc);
254
255    rsc->mStateElement.elementBuilderBegin();
256    rsc->mStateElement.elementBuilderAdd(f4Elem, "position", 1);
257    rsc->mStateElement.elementBuilderAdd(f4Elem, "color", 1);
258    rsc->mStateElement.elementBuilderAdd(f3Elem, "normal", 1);
259    rsc->mStateElement.elementBuilderAdd(f4Elem, "texture0", 1);
260    const Element *attrElem = rsc->mStateElement.elementBuilderCreate(rsc);
261
262    Type *inputType = new Type(rsc);
263    inputType->setElement(constInput);
264    inputType->setDimX(1);
265    inputType->compute();
266
267    String8 shaderString(RS_SHADER_INTERNAL);
268    shaderString.append("varying vec4 varColor;\n");
269    shaderString.append("varying vec4 varTex0;\n");
270    shaderString.append("void main() {\n");
271    shaderString.append("  gl_Position = UNI_MVP * ATTRIB_position;\n");
272    shaderString.append("  gl_PointSize = 1.0;\n");
273    shaderString.append("  varColor = ATTRIB_color;\n");
274    shaderString.append("  varTex0 = ATTRIB_texture0;\n");
275    shaderString.append("}\n");
276
277    uint32_t tmp[6];
278    tmp[0] = RS_PROGRAM_PARAM_CONSTANT;
279    tmp[1] = (uint32_t)inputType;
280    tmp[2] = RS_PROGRAM_PARAM_INPUT;
281    tmp[3] = (uint32_t)attrElem;
282    tmp[4] = RS_PROGRAM_PARAM_TEXTURE_COUNT;
283    tmp[5] = 0;
284
285    ProgramVertex *pv = new ProgramVertex(rsc, shaderString.string(),
286                                          shaderString.length(), tmp, 6);
287    Allocation *alloc = new Allocation(rsc, inputType);
288    pv->bindAllocation(alloc, 0);
289
290    mDefaultAlloc.set(alloc);
291    mDefault.set(pv);
292    pv->bindAllocation(alloc, 0);
293
294    updateSize(rsc);
295
296}
297
298void ProgramVertexState::updateSize(Context *rsc)
299{
300    float *f = static_cast<float *>(mDefaultAlloc->getPtr());
301
302    Matrix m;
303    m.loadOrtho(0,rsc->getWidth(), rsc->getHeight(),0, -1,1);
304    memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m.m, sizeof(m));
305    memcpy(&f[RS_PROGRAM_VERTEX_MVP_OFFSET], m.m, sizeof(m));
306
307    m.loadIdentity();
308    memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m.m, sizeof(m));
309    memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m.m, sizeof(m));
310}
311
312void ProgramVertexState::deinit(Context *rsc)
313{
314    mDefaultAlloc.clear();
315    mDefault.clear();
316    mLast.clear();
317}
318
319
320namespace android {
321namespace renderscript {
322
323
324RsProgramVertex rsi_ProgramVertexCreate(Context *rsc, bool texMat)
325{
326    ProgramVertex *pv = new ProgramVertex(rsc, texMat);
327    pv->incUserRef();
328    return pv;
329}
330
331RsProgramVertex rsi_ProgramVertexCreate2(Context *rsc, const char * shaderText,
332                             uint32_t shaderLength, const uint32_t * params,
333                             uint32_t paramLength)
334{
335    ProgramVertex *pv = new ProgramVertex(rsc, shaderText, shaderLength, params, paramLength);
336    pv->incUserRef();
337    return pv;
338}
339
340
341}
342}
343