rsProgramVertex.cpp revision 383e5b1f68c321a77bfd7466fa1171a9bfab4a6f 
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        float *f = static_cast<float *>(mConstants[0]->getPtr());
112        Matrix mvp;
113        mvp.load(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
114        Matrix t;
115        t.load(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET]);
116        mvp.multiply(&t);
117        for(uint32_t i = 0; i < 16; i ++) {
118            f[RS_PROGRAM_VERTEX_MVP_OFFSET + i] = mvp.m[i];
119        }
120    }
121
122    rsc->checkError("ProgramVertex::setupGL2 begin uniforms");
123    setupUserConstants(rsc, sc, false);
124
125    state->mLast.set(this);
126    rsc->checkError("ProgramVertex::setupGL2");
127}
128
129void ProgramVertex::setProjectionMatrix(Context *rsc, const rsc_Matrix *m) const
130{
131    if(isUserProgram()) {
132        LOGE("Attempting to set fixed function emulation matrix projection on user program");
133        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot set emulation matrix on user shader");
134        return;
135    }
136    if(mConstants[0].get() == NULL) {
137        LOGE("Unable to set fixed function emulation matrix projection because allocation is missing");
138        return;
139    }
140    float *f = static_cast<float *>(mConstants[0]->getPtr());
141    memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m, sizeof(rsc_Matrix));
142    mDirty = true;
143}
144
145void ProgramVertex::setModelviewMatrix(Context *rsc, const rsc_Matrix *m) const
146{
147    if(isUserProgram()) {
148        LOGE("Attempting to set fixed function emulation matrix modelview on user program");
149        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot set emulation matrix on user shader");
150        return;
151    }
152    if(mConstants[0].get() == NULL) {
153        LOGE("Unable to set fixed function emulation matrix modelview because allocation is missing");
154        rsc->setError(RS_ERROR_BAD_SHADER, "Fixed function allocation missing");
155        return;
156    }
157    float *f = static_cast<float *>(mConstants[0]->getPtr());
158    memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m, sizeof(rsc_Matrix));
159    mDirty = true;
160}
161
162void ProgramVertex::setTextureMatrix(Context *rsc, const rsc_Matrix *m) const
163{
164    if(isUserProgram()) {
165        LOGE("Attempting to set fixed function emulation matrix texture on user program");
166        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot set emulation matrix on user shader");
167        return;
168    }
169    if(mConstants[0].get() == NULL) {
170        LOGE("Unable to set fixed function emulation matrix texture because allocation is missing");
171        rsc->setError(RS_ERROR_BAD_SHADER, "Fixed function allocation missing");
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(Context *rsc, rsc_Matrix *m) const
180{
181    if(isUserProgram()) {
182        LOGE("Attempting to get fixed function emulation matrix projection on user program");
183        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot get emulation matrix on user shader");
184        return;
185    }
186    if(mConstants[0].get() == NULL) {
187        LOGE("Unable to get fixed function emulation matrix projection because allocation is missing");
188        rsc->setError(RS_ERROR_BAD_SHADER, "Fixed function allocation missing");
189        return;
190    }
191    float *f = static_cast<float *>(mConstants[0]->getPtr());
192    memcpy(m, &f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], sizeof(rsc_Matrix));
193}
194
195void ProgramVertex::transformToScreen(Context *rsc, float *v4out, const float *v3in) const
196{
197    if(isUserProgram()) {
198        return;
199    }
200    float *f = static_cast<float *>(mConstants[0]->getPtr());
201    Matrix mvp;
202    mvp.loadMultiply((Matrix *)&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET],
203                     (Matrix *)&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
204    mvp.vectorMultiply(v4out, v3in);
205}
206
207void ProgramVertex::init(Context *rsc)
208{
209    mAttribCount = 0;
210    if (mUserShader.size() > 0) {
211        for (uint32_t ct=0; ct < mInputCount; ct++) {
212            initAddUserElement(mInputElements[ct].get(), mAttribNames, &mAttribCount, "ATTRIB_");
213        }
214
215        mUniformCount = 0;
216        for (uint32_t ct=0; ct < mConstantCount; ct++) {
217            initAddUserElement(mConstantTypes[ct]->getElement(), mUniformNames, &mUniformCount, "UNI_");
218        }
219    }
220    createShader();
221}
222
223void ProgramVertex::serialize(OStream *stream) const
224{
225
226}
227
228ProgramVertex *ProgramVertex::createFromStream(Context *rsc, IStream *stream)
229{
230    return NULL;
231}
232
233
234///////////////////////////////////////////////////////////////////////
235
236ProgramVertexState::ProgramVertexState()
237{
238}
239
240ProgramVertexState::~ProgramVertexState()
241{
242}
243
244void ProgramVertexState::init(Context *rsc)
245{
246    const Element *matrixElem = Element::create(rsc, RS_TYPE_MATRIX_4X4, RS_KIND_USER, false, 1);
247    const Element *f3Elem = Element::create(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 3);
248    const Element *f4Elem = Element::create(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 4);
249
250    rsc->mStateElement.elementBuilderBegin();
251    rsc->mStateElement.elementBuilderAdd(matrixElem, "MV", 1);
252    rsc->mStateElement.elementBuilderAdd(matrixElem, "P", 1);
253    rsc->mStateElement.elementBuilderAdd(matrixElem, "TexMatrix", 1);
254    rsc->mStateElement.elementBuilderAdd(matrixElem, "MVP", 1);
255    const Element *constInput = rsc->mStateElement.elementBuilderCreate(rsc);
256
257    rsc->mStateElement.elementBuilderBegin();
258    rsc->mStateElement.elementBuilderAdd(f4Elem, "position", 1);
259    rsc->mStateElement.elementBuilderAdd(f4Elem, "color", 1);
260    rsc->mStateElement.elementBuilderAdd(f3Elem, "normal", 1);
261    rsc->mStateElement.elementBuilderAdd(f4Elem, "texture0", 1);
262    const Element *attrElem = rsc->mStateElement.elementBuilderCreate(rsc);
263
264    Type *inputType = new Type(rsc);
265    inputType->setElement(constInput);
266    inputType->setDimX(1);
267    inputType->compute();
268
269    String8 shaderString(RS_SHADER_INTERNAL);
270    shaderString.append("varying vec4 varColor;\n");
271    shaderString.append("varying vec4 varTex0;\n");
272    shaderString.append("void main() {\n");
273    shaderString.append("  gl_Position = UNI_MVP * ATTRIB_position;\n");
274    shaderString.append("  gl_PointSize = 1.0;\n");
275    shaderString.append("  varColor = ATTRIB_color;\n");
276    shaderString.append("  varTex0 = ATTRIB_texture0;\n");
277    shaderString.append("}\n");
278
279    uint32_t tmp[6];
280    tmp[0] = RS_PROGRAM_PARAM_CONSTANT;
281    tmp[1] = (uint32_t)inputType;
282    tmp[2] = RS_PROGRAM_PARAM_INPUT;
283    tmp[3] = (uint32_t)attrElem;
284    tmp[4] = RS_PROGRAM_PARAM_TEXTURE_COUNT;
285    tmp[5] = 0;
286
287    ProgramVertex *pv = new ProgramVertex(rsc, shaderString.string(),
288                                          shaderString.length(), tmp, 6);
289    Allocation *alloc = new Allocation(rsc, inputType);
290    pv->bindAllocation(rsc, alloc, 0);
291
292    mDefaultAlloc.set(alloc);
293    mDefault.set(pv);
294
295    updateSize(rsc);
296
297}
298
299void ProgramVertexState::updateSize(Context *rsc)
300{
301    float *f = static_cast<float *>(mDefaultAlloc->getPtr());
302
303    Matrix m;
304    m.loadOrtho(0,rsc->getWidth(), rsc->getHeight(),0, -1,1);
305    memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m.m, sizeof(m));
306    memcpy(&f[RS_PROGRAM_VERTEX_MVP_OFFSET], m.m, sizeof(m));
307
308    m.loadIdentity();
309    memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m.m, sizeof(m));
310    memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m.m, sizeof(m));
311}
312
313void ProgramVertexState::deinit(Context *rsc)
314{
315    mDefaultAlloc.clear();
316    mDefault.clear();
317    mLast.clear();
318}
319
320
321namespace android {
322namespace renderscript {
323
324RsProgramVertex rsi_ProgramVertexCreate(Context *rsc, const char * shaderText,
325                             uint32_t shaderLength, const uint32_t * params,
326                             uint32_t paramLength)
327{
328    ProgramVertex *pv = new ProgramVertex(rsc, shaderText, shaderLength, params, paramLength);
329    pv->incUserRef();
330    return pv;
331}
332
333
334}
335}
336