rsProgramVertex.cpp revision 886f11ade9dde05485cb11c0d67d87f76a428f6c 
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, const char * shaderText,
36                             uint32_t shaderLength, const uint32_t * params,
37                             uint32_t paramLength) :
38    Program(rsc, shaderText, shaderLength, params, paramLength)
39{
40    mAllocFile = __FILE__;
41    mAllocLine = __LINE__;
42
43    init(rsc);
44}
45
46ProgramVertex::~ProgramVertex()
47{
48}
49
50static void logMatrix(const char *txt, const float *f)
51{
52    LOGV("Matrix %s, %p", txt, f);
53    LOGV("%6.4f, %6.4f, %6.4f, %6.4f", f[0], f[4], f[8], f[12]);
54    LOGV("%6.4f, %6.4f, %6.4f, %6.4f", f[1], f[5], f[9], f[13]);
55    LOGV("%6.4f, %6.4f, %6.4f, %6.4f", f[2], f[6], f[10], f[14]);
56    LOGV("%6.4f, %6.4f, %6.4f, %6.4f", f[3], f[7], f[11], f[15]);
57}
58
59void ProgramVertex::loadShader(Context *rsc) {
60    Program::loadShader(rsc, GL_VERTEX_SHADER);
61}
62
63void ProgramVertex::createShader()
64{
65    if (mUserShader.length() > 1) {
66
67        appendUserConstants();
68
69        for (uint32_t ct=0; ct < mInputCount; ct++) {
70            const Element *e = mInputElements[ct].get();
71            for (uint32_t field=0; field < e->getFieldCount(); field++) {
72                const Element *f = e->getField(field);
73                const char *fn = e->getFieldName(field);
74
75                if (fn[0] == '#') {
76                    continue;
77                }
78
79                // Cannot be complex
80                rsAssert(!f->getFieldCount());
81                switch(f->getComponent().getVectorSize()) {
82                case 1: mShader.append("attribute float ATTRIB_"); break;
83                case 2: mShader.append("attribute vec2 ATTRIB_"); break;
84                case 3: mShader.append("attribute vec3 ATTRIB_"); break;
85                case 4: mShader.append("attribute vec4 ATTRIB_"); break;
86                default:
87                    rsAssert(0);
88                }
89
90                mShader.append(fn);
91                mShader.append(";\n");
92            }
93        }
94        mShader.append(mUserShader);
95    } else {
96        LOGE("ProgramFragment::createShader cannot create program, shader code not defined");
97        rsAssert(0);
98    }
99}
100
101void ProgramVertex::setupGL2(Context *rsc, ProgramVertexState *state, ShaderCache *sc)
102{
103    //LOGE("sgl2 vtx1 %x", glGetError());
104    if ((state->mLast.get() == this) && !mDirty) {
105        return;
106    }
107
108    rsc->checkError("ProgramVertex::setupGL2 start");
109
110    if(!isUserProgram()) {
111        if(mConstants[0].get() == NULL) {
112            LOGE("Unable to set fixed function emulation matrices because allocation is missing");
113            rsc->setError(RS_ERROR_BAD_SHADER, "Fixed function allocation missing");
114            return;
115        }
116        float *f = static_cast<float *>(mConstants[0]->getPtr());
117        Matrix mvp;
118        mvp.load(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
119        Matrix t;
120        t.load(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET]);
121        mvp.multiply(&t);
122        for(uint32_t i = 0; i < 16; i ++) {
123            f[RS_PROGRAM_VERTEX_MVP_OFFSET + i] = mvp.m[i];
124        }
125    }
126
127    rsc->checkError("ProgramVertex::setupGL2 begin uniforms");
128    setupUserConstants(rsc, sc, false);
129
130    state->mLast.set(this);
131    rsc->checkError("ProgramVertex::setupGL2");
132}
133
134void ProgramVertex::setProjectionMatrix(Context *rsc, const rsc_Matrix *m) const
135{
136    if(isUserProgram()) {
137        LOGE("Attempting to set fixed function emulation matrix projection on user program");
138        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot set emulation matrix on user shader");
139        return;
140    }
141    if(mConstants[0].get() == NULL) {
142        LOGE("Unable to set fixed function emulation matrix projection because allocation is missing");
143        return;
144    }
145    float *f = static_cast<float *>(mConstants[0]->getPtr());
146    memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m, sizeof(rsc_Matrix));
147    mDirty = true;
148}
149
150void ProgramVertex::setModelviewMatrix(Context *rsc, const rsc_Matrix *m) const
151{
152    if(isUserProgram()) {
153        LOGE("Attempting to set fixed function emulation matrix modelview on user program");
154        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot set emulation matrix on user shader");
155        return;
156    }
157    if(mConstants[0].get() == NULL) {
158        LOGE("Unable to set fixed function emulation matrix modelview because allocation is missing");
159        rsc->setError(RS_ERROR_BAD_SHADER, "Fixed function allocation missing");
160        return;
161    }
162    float *f = static_cast<float *>(mConstants[0]->getPtr());
163    memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m, sizeof(rsc_Matrix));
164    mDirty = true;
165}
166
167void ProgramVertex::setTextureMatrix(Context *rsc, const rsc_Matrix *m) const
168{
169    if(isUserProgram()) {
170        LOGE("Attempting to set fixed function emulation matrix texture on user program");
171        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot set emulation matrix on user shader");
172        return;
173    }
174    if(mConstants[0].get() == NULL) {
175        LOGE("Unable to set fixed function emulation matrix texture because allocation is missing");
176        rsc->setError(RS_ERROR_BAD_SHADER, "Fixed function allocation missing");
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(Context *rsc, rsc_Matrix *m) const
185{
186    if(isUserProgram()) {
187        LOGE("Attempting to get fixed function emulation matrix projection on user program");
188        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot get emulation matrix on user shader");
189        return;
190    }
191    if(mConstants[0].get() == NULL) {
192        LOGE("Unable to get fixed function emulation matrix projection because allocation is missing");
193        rsc->setError(RS_ERROR_BAD_SHADER, "Fixed function allocation missing");
194        return;
195    }
196    float *f = static_cast<float *>(mConstants[0]->getPtr());
197    memcpy(m, &f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], sizeof(rsc_Matrix));
198}
199
200void ProgramVertex::transformToScreen(Context *rsc, float *v4out, const float *v3in) const
201{
202    if(isUserProgram()) {
203        return;
204    }
205    float *f = static_cast<float *>(mConstants[0]->getPtr());
206    Matrix mvp;
207    mvp.loadMultiply((Matrix *)&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET],
208                     (Matrix *)&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
209    mvp.vectorMultiply(v4out, v3in);
210}
211
212void ProgramVertex::init(Context *rsc)
213{
214    mAttribCount = 0;
215    if (mUserShader.size() > 0) {
216        for (uint32_t ct=0; ct < mInputCount; ct++) {
217            initAddUserElement(mInputElements[ct].get(), mAttribNames, &mAttribCount, RS_SHADER_ATTR);
218        }
219        mUniformCount = 0;
220        for (uint32_t ct=0; ct < mConstantCount; ct++) {
221            initAddUserElement(mConstantTypes[ct]->getElement(), mUniformNames, &mUniformCount, RS_SHADER_UNI);
222        }
223    }
224    createShader();
225}
226
227void ProgramVertex::serialize(OStream *stream) const
228{
229
230}
231
232ProgramVertex *ProgramVertex::createFromStream(Context *rsc, IStream *stream)
233{
234    return NULL;
235}
236
237
238///////////////////////////////////////////////////////////////////////
239
240ProgramVertexState::ProgramVertexState()
241{
242}
243
244ProgramVertexState::~ProgramVertexState()
245{
246}
247
248void ProgramVertexState::init(Context *rsc)
249{
250    const Element *matrixElem = Element::create(rsc, RS_TYPE_MATRIX_4X4, RS_KIND_USER, false, 1);
251    const Element *f3Elem = Element::create(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 3);
252    const Element *f4Elem = Element::create(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 4);
253
254    rsc->mStateElement.elementBuilderBegin();
255    rsc->mStateElement.elementBuilderAdd(matrixElem, "MV", 1);
256    rsc->mStateElement.elementBuilderAdd(matrixElem, "P", 1);
257    rsc->mStateElement.elementBuilderAdd(matrixElem, "TexMatrix", 1);
258    rsc->mStateElement.elementBuilderAdd(matrixElem, "MVP", 1);
259    const Element *constInput = rsc->mStateElement.elementBuilderCreate(rsc);
260
261    rsc->mStateElement.elementBuilderBegin();
262    rsc->mStateElement.elementBuilderAdd(f4Elem, "position", 1);
263    rsc->mStateElement.elementBuilderAdd(f4Elem, "color", 1);
264    rsc->mStateElement.elementBuilderAdd(f3Elem, "normal", 1);
265    rsc->mStateElement.elementBuilderAdd(f4Elem, "texture0", 1);
266    const Element *attrElem = rsc->mStateElement.elementBuilderCreate(rsc);
267
268    Type *inputType = new Type(rsc);
269    inputType->setElement(constInput);
270    inputType->setDimX(1);
271    inputType->compute();
272
273    String8 shaderString(RS_SHADER_INTERNAL);
274    shaderString.append("varying vec4 varColor;\n");
275    shaderString.append("varying vec4 varTex0;\n");
276    shaderString.append("void main() {\n");
277    shaderString.append("  gl_Position = UNI_MVP * ATTRIB_position;\n");
278    shaderString.append("  gl_PointSize = 1.0;\n");
279    shaderString.append("  varColor = ATTRIB_color;\n");
280    shaderString.append("  varTex0 = ATTRIB_texture0;\n");
281    shaderString.append("}\n");
282
283    uint32_t tmp[6];
284    tmp[0] = RS_PROGRAM_PARAM_CONSTANT;
285    tmp[1] = (uint32_t)inputType;
286    tmp[2] = RS_PROGRAM_PARAM_INPUT;
287    tmp[3] = (uint32_t)attrElem;
288    tmp[4] = RS_PROGRAM_PARAM_TEXTURE_COUNT;
289    tmp[5] = 0;
290
291    ProgramVertex *pv = new ProgramVertex(rsc, shaderString.string(),
292                                          shaderString.length(), tmp, 6);
293    Allocation *alloc = new Allocation(rsc, inputType);
294    pv->bindAllocation(rsc, alloc, 0);
295
296    mDefaultAlloc.set(alloc);
297    mDefault.set(pv);
298
299    updateSize(rsc);
300
301}
302
303void ProgramVertexState::updateSize(Context *rsc)
304{
305    float *f = static_cast<float *>(mDefaultAlloc->getPtr());
306
307    Matrix m;
308    m.loadOrtho(0,rsc->getWidth(), rsc->getHeight(),0, -1,1);
309    memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m.m, sizeof(m));
310    memcpy(&f[RS_PROGRAM_VERTEX_MVP_OFFSET], m.m, sizeof(m));
311
312    m.loadIdentity();
313    memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m.m, sizeof(m));
314    memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m.m, sizeof(m));
315}
316
317void ProgramVertexState::deinit(Context *rsc)
318{
319    mDefaultAlloc.clear();
320    mDefault.clear();
321    mLast.clear();
322}
323
324
325namespace android {
326namespace renderscript {
327
328RsProgramVertex rsi_ProgramVertexCreate(Context *rsc, const char * shaderText,
329                             uint32_t shaderLength, const uint32_t * params,
330                             uint32_t paramLength)
331{
332    ProgramVertex *pv = new ProgramVertex(rsc, shaderText, shaderLength, params, paramLength);
333    pv->incUserRef();
334    return pv;
335}
336
337
338}
339}
340