rsProgramVertex.cpp revision fb6b614bcea88a587a7ea4530be45ff0ffa0210e 
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    if ((state->mLast.get() == this) && !mDirty) {
74        return;
75    }
76    state->mLast.set(this);
77
78    const float *f = static_cast<const float *>(mConstants[0]->getPtr());
79
80    glMatrixMode(GL_TEXTURE);
81    if (mTextureMatrixEnable) {
82        glLoadMatrixf(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET]);
83    } else {
84        glLoadIdentity();
85    }
86
87    glMatrixMode(GL_MODELVIEW);
88    glLoadIdentity();
89    if (mLightCount) {
90#ifndef ANDROID_RS_BUILD_FOR_HOST // GLES Only
91        int v = 0;
92        glEnable(GL_LIGHTING);
93
94        glLightModelxv(GL_LIGHT_MODEL_TWO_SIDE, &v);
95
96        for (uint32_t ct = 0; ct < mLightCount; ct++) {
97            const Light *l = mLights[ct].get();
98            glEnable(GL_LIGHT0 + ct);
99            l->setupGL(ct);
100        }
101        for (uint32_t ct = mLightCount; ct < MAX_LIGHTS; ct++) {
102            glDisable(GL_LIGHT0 + ct);
103        }
104#endif //ANDROID_RS_BUILD_FOR_HOST
105    } else {
106        glDisable(GL_LIGHTING);
107    }
108
109    if (!f) {
110        LOGE("Must bind constants to vertex program");
111    }
112
113    glMatrixMode(GL_PROJECTION);
114    glLoadMatrixf(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
115    glMatrixMode(GL_MODELVIEW);
116    glLoadMatrixf(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET]);
117
118    mDirty = false;
119}
120
121void ProgramVertex::loadShader(Context *rsc) {
122    Program::loadShader(rsc, GL_VERTEX_SHADER);
123}
124
125void ProgramVertex::createShader()
126{
127    mShader.setTo("");
128
129    mShader.append("varying vec4 varColor;\n");
130    mShader.append("varying vec4 varTex0;\n");
131
132    if (mUserShader.length() > 1) {
133        mShader.append("uniform mat4 ");
134        mShader.append(mUniformNames[0]);
135        mShader.append(";\n");
136
137        for (uint32_t ct=0; ct < mConstantCount; ct++) {
138            const Element *e = mConstantTypes[ct]->getElement();
139            for (uint32_t field=0; field < e->getFieldCount(); field++) {
140                const Element *f = e->getField(field);
141
142                // Cannot be complex
143                rsAssert(!f->getFieldCount());
144                switch(f->getComponent().getVectorSize()) {
145                case 1: mShader.append("uniform float UNI_"); break;
146                case 2: mShader.append("uniform vec2 UNI_"); break;
147                case 3: mShader.append("uniform vec3 UNI_"); break;
148                case 4: mShader.append("uniform vec4 UNI_"); break;
149                default:
150                    rsAssert(0);
151                }
152
153                mShader.append(e->getFieldName(field));
154                mShader.append(";\n");
155            }
156        }
157
158
159        for (uint32_t ct=0; ct < mInputCount; ct++) {
160            const Element *e = mInputElements[ct].get();
161            for (uint32_t field=0; field < e->getFieldCount(); field++) {
162                const Element *f = e->getField(field);
163
164                // Cannot be complex
165                rsAssert(!f->getFieldCount());
166                switch(f->getComponent().getVectorSize()) {
167                case 1: mShader.append("attribute float ATTRIB_"); break;
168                case 2: mShader.append("attribute vec2 ATTRIB_"); break;
169                case 3: mShader.append("attribute vec3 ATTRIB_"); break;
170                case 4: mShader.append("attribute vec4 ATTRIB_"); break;
171                default:
172                    rsAssert(0);
173                }
174
175                mShader.append(e->getFieldName(field));
176                mShader.append(";\n");
177            }
178        }
179        mShader.append(mUserShader);
180    } else {
181        mShader.append("attribute vec4 ATTRIB_LegacyPosition;\n");
182        mShader.append("attribute vec4 ATTRIB_LegacyColor;\n");
183        mShader.append("attribute vec3 ATTRIB_LegacyNormal;\n");
184        mShader.append("attribute float ATTRIB_LegacyPointSize;\n");
185        mShader.append("attribute vec4 ATTRIB_LegacyTexture;\n");
186
187        for (uint32_t ct=0; ct < mUniformCount; ct++) {
188            mShader.append("uniform mat4 ");
189            mShader.append(mUniformNames[ct]);
190            mShader.append(";\n");
191        }
192
193        mShader.append("void main() {\n");
194        mShader.append("  gl_Position = UNI_MVP * ATTRIB_LegacyPosition;\n");
195        mShader.append("  gl_PointSize = ATTRIB_LegacyPointSize;\n");
196
197        mShader.append("  varColor = ATTRIB_LegacyColor;\n");
198        if (mTextureMatrixEnable) {
199            mShader.append("  varTex0 = UNI_TexMatrix * ATTRIB_LegacyTexture;\n");
200        } else {
201            mShader.append("  varTex0 = ATTRIB_LegacyTexture;\n");
202        }
203        //mShader.append("  pos.x = pos.x / 480.0;\n");
204        //mShader.append("  pos.y = pos.y / 800.0;\n");
205        //mShader.append("  gl_Position = pos;\n");
206        mShader.append("}\n");
207    }
208}
209
210void ProgramVertex::setupGL2(const Context *rsc, ProgramVertexState *state, ShaderCache *sc)
211{
212    //LOGE("sgl2 vtx1 %x", glGetError());
213    if ((state->mLast.get() == this) && !mDirty) {
214        //return;
215    }
216
217    rsc->checkError("ProgramVertex::setupGL2 start");
218    glVertexAttrib4f(1, state->color[0], state->color[1], state->color[2], state->color[3]);
219
220    const float *f = static_cast<const float *>(mConstants[0]->getPtr());
221
222    Matrix mvp;
223    mvp.load(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
224    Matrix t;
225    t.load(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET]);
226    mvp.multiply(&t);
227
228    glUniformMatrix4fv(sc->vtxUniformSlot(0), 1, GL_FALSE, mvp.m);
229    if (mTextureMatrixEnable) {
230        glUniformMatrix4fv(sc->vtxUniformSlot(1), 1, GL_FALSE,
231                           &f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET]);
232    }
233
234    rsc->checkError("ProgramVertex::setupGL2 begin uniforms");
235    uint32_t uidx = 1;
236    for (uint32_t ct=0; ct < mConstantCount; ct++) {
237        Allocation *alloc = mConstants[ct+1].get();
238        if (!alloc) {
239            continue;
240        }
241
242        const uint8_t *data = static_cast<const uint8_t *>(alloc->getPtr());
243        const Element *e = mConstantTypes[ct]->getElement();
244        for (uint32_t field=0; field < e->getFieldCount(); field++) {
245            const Element *f = e->getField(field);
246            uint32_t offset = e->getFieldOffsetBytes(field);
247            int32_t slot = sc->vtxUniformSlot(uidx);
248
249            const float *fd = reinterpret_cast<const float *>(&data[offset]);
250
251            //LOGE("Uniform  slot=%i, offset=%i, constant=%i, field=%i, uidx=%i", slot, offset, ct, field, uidx);
252            if (slot >= 0) {
253                switch(f->getComponent().getVectorSize()) {
254                case 1:
255                    //LOGE("Uniform 1 = %f", fd[0]);
256                    glUniform1fv(slot, 1, fd);
257                    break;
258                case 2:
259                    //LOGE("Uniform 2 = %f %f", fd[0], fd[1]);
260                    glUniform2fv(slot, 1, fd);
261                    break;
262                case 3:
263                    //LOGE("Uniform 3 = %f %f %f", fd[0], fd[1], fd[2]);
264                    glUniform3fv(slot, 1, fd);
265                    break;
266                case 4:
267                    //LOGE("Uniform 4 = %f %f %f %f", fd[0], fd[1], fd[2], fd[3]);
268                    glUniform4fv(slot, 1, fd);
269                    break;
270                default:
271                    rsAssert(0);
272                }
273            }
274            uidx ++;
275        }
276    }
277
278    for (uint32_t ct=0; ct < mConstantCount; ct++) {
279        uint32_t glSlot = sc->vtxUniformSlot(ct + 1);
280
281    }
282
283    state->mLast.set(this);
284    rsc->checkError("ProgramVertex::setupGL2");
285}
286
287void ProgramVertex::addLight(const Light *l)
288{
289    if (mLightCount < MAX_LIGHTS) {
290        mLights[mLightCount].set(l);
291        mLightCount++;
292    }
293}
294
295void ProgramVertex::setProjectionMatrix(const rsc_Matrix *m) const
296{
297    float *f = static_cast<float *>(mConstants[0]->getPtr());
298    memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m, sizeof(rsc_Matrix));
299    mDirty = true;
300}
301
302void ProgramVertex::setModelviewMatrix(const rsc_Matrix *m) const
303{
304    float *f = static_cast<float *>(mConstants[0]->getPtr());
305    memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m, sizeof(rsc_Matrix));
306    mDirty = true;
307}
308
309void ProgramVertex::setTextureMatrix(const rsc_Matrix *m) const
310{
311    float *f = static_cast<float *>(mConstants[0]->getPtr());
312    memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m, sizeof(rsc_Matrix));
313    mDirty = true;
314}
315
316void ProgramVertex::transformToScreen(const Context *rsc, float *v4out, const float *v3in) const
317{
318    float *f = static_cast<float *>(mConstants[0]->getPtr());
319    Matrix mvp;
320    mvp.loadMultiply((Matrix *)&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET],
321                     (Matrix *)&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
322    mvp.vectorMultiply(v4out, v3in);
323}
324
325void ProgramVertex::initAddUserElement(const Element *e, String8 *names, uint32_t *count, const char *prefix)
326{
327    rsAssert(e->getFieldCount());
328    for (uint32_t ct=0; ct < e->getFieldCount(); ct++) {
329        const Element *ce = e->getField(ct);
330        if (ce->getFieldCount()) {
331            initAddUserElement(ce, names, count, prefix);
332        } else {
333            String8 tmp(prefix);
334            tmp.append(e->getFieldName(ct));
335            names[*count].setTo(tmp.string());
336            (*count)++;
337        }
338    }
339}
340
341
342void ProgramVertex::init(Context *rsc)
343{
344    mAttribCount = 0;
345    if (mUserShader.size() > 0) {
346        for (uint32_t ct=0; ct < mInputCount; ct++) {
347            initAddUserElement(mInputElements[ct].get(), mAttribNames, &mAttribCount, "ATTRIB_");
348        }
349
350        mUniformCount = 1;
351        mUniformNames[0].setTo("UNI_MVP");
352        for (uint32_t ct=0; ct < mConstantCount; ct++) {
353            initAddUserElement(mConstantTypes[ct]->getElement(), mUniformNames, &mUniformCount, "UNI_");
354        }
355    } else {
356        mUniformCount = 2;
357        mUniformNames[0].setTo("UNI_MVP");
358        mUniformNames[1].setTo("UNI_TexMatrix");
359    }
360
361    createShader();
362}
363
364void ProgramVertex::serialize(OStream *stream) const
365{
366
367}
368
369ProgramVertex *ProgramVertex::createFromStream(Context *rsc, IStream *stream)
370{
371    return NULL;
372}
373
374
375///////////////////////////////////////////////////////////////////////
376
377ProgramVertexState::ProgramVertexState()
378{
379}
380
381ProgramVertexState::~ProgramVertexState()
382{
383}
384
385void ProgramVertexState::init(Context *rsc)
386{
387#ifndef ANDROID_RS_BUILD_FOR_HOST
388    RsElement e = (RsElement) Element::create(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 1);
389
390    rsi_TypeBegin(rsc, e);
391    rsi_TypeAdd(rsc, RS_DIMENSION_X, 48);
392    mAllocType.set((Type *)rsi_TypeCreate(rsc));
393
394    ProgramVertex *pv = new ProgramVertex(rsc, false);
395    Allocation *alloc = (Allocation *)rsi_AllocationCreateTyped(rsc, mAllocType.get());
396
397    mDefaultAlloc.set(alloc);
398    mDefault.set(pv);
399    pv->init(rsc);
400    pv->bindAllocation(alloc, 0);
401
402    color[0] = 1.f;
403    color[1] = 1.f;
404    color[2] = 1.f;
405    color[3] = 1.f;
406
407    updateSize(rsc);
408#endif //ANDROID_RS_BUILD_FOR_HOST
409
410}
411
412void ProgramVertexState::updateSize(Context *rsc)
413{
414    Matrix m;
415    m.loadOrtho(0,rsc->getWidth(), rsc->getHeight(),0, -1,1);
416    mDefaultAlloc->subData(RS_PROGRAM_VERTEX_PROJECTION_OFFSET, 16, &m.m[0], 16*4);
417
418    m.loadIdentity();
419    mDefaultAlloc->subData(RS_PROGRAM_VERTEX_MODELVIEW_OFFSET, 16, &m.m[0], 16*4);
420}
421
422void ProgramVertexState::deinit(Context *rsc)
423{
424    mDefaultAlloc.clear();
425    mDefault.clear();
426    mAllocType.clear();
427    mLast.clear();
428}
429
430
431namespace android {
432namespace renderscript {
433
434
435RsProgramVertex rsi_ProgramVertexCreate(Context *rsc, bool texMat)
436{
437    ProgramVertex *pv = new ProgramVertex(rsc, texMat);
438    pv->incUserRef();
439    return pv;
440}
441
442RsProgramVertex rsi_ProgramVertexCreate2(Context *rsc, const char * shaderText,
443                             uint32_t shaderLength, const uint32_t * params,
444                             uint32_t paramLength)
445{
446    ProgramVertex *pv = new ProgramVertex(rsc, shaderText, shaderLength, params, paramLength);
447    pv->incUserRef();
448    return pv;
449}
450
451
452}
453}
454