Home | History | Annotate | Download | only in rs
      1 /*
      2  * Copyright (C) 2011 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 #include "rsContext.h"
     18 #include "rsProgramVertex.h"
     19 #include "rsMatrix4x4.h"
     20 
     21 using namespace android;
     22 using namespace android::renderscript;
     23 
     24 
     25 ProgramVertex::ProgramVertex(Context *rsc, const char * shaderText, size_t shaderLength,
     26                              const char** textureNames, size_t textureNamesCount, const size_t *textureNamesLength,
     27 
     28                              const uint32_t * params, size_t paramLength)
     29     : Program(rsc, shaderText, shaderLength, params, paramLength) {
     30     mRSC->mHal.funcs.vertex.init(mRSC, this, mUserShader, mUserShaderLen,
     31                                  textureNames, textureNamesCount, textureNamesLength);
     32 }
     33 
     34 ProgramVertex::~ProgramVertex() {
     35     mRSC->mHal.funcs.vertex.destroy(mRSC, this);
     36 }
     37 
     38 void ProgramVertex::setup(Context *rsc, ProgramVertexState *state) {
     39     if ((state->mLast.get() == this) && !mDirty) {
     40         return;
     41     }
     42 
     43     if (!isUserProgram()) {
     44         if (mHal.state.constants[0] == NULL) {
     45             rsc->setError(RS_ERROR_FATAL_UNKNOWN,
     46                           "Unable to set fixed function emulation matrices because allocation is missing");
     47             return;
     48         }
     49         float *f = static_cast<float *>(rsc->mHal.funcs.allocation.lock1D(
     50                 rsc, mHal.state.constants[0]));
     51         Matrix4x4 mvp;
     52         mvp.load(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
     53         Matrix4x4 t;
     54         t.load(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET]);
     55         mvp.multiply(&t);
     56         for (uint32_t i = 0; i < 16; i ++) {
     57             f[RS_PROGRAM_VERTEX_MVP_OFFSET + i] = mvp.m[i];
     58         }
     59         rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
     60     }
     61 
     62     state->mLast.set(this);
     63 
     64     rsc->mHal.funcs.vertex.setActive(rsc, this);
     65 }
     66 
     67 void ProgramVertex::setProjectionMatrix(Context *rsc, const rsc_Matrix *m) const {
     68     if (isUserProgram()) {
     69         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
     70                       "Attempting to set fixed function emulation matrix projection on user program");
     71         return;
     72     }
     73     if (mHal.state.constants[0] == NULL) {
     74         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
     75                       "Unable to set fixed function emulation matrix projection because allocation is missing");
     76         return;
     77     }
     78     float *f = static_cast<float *>(rsc->mHal.funcs.allocation.lock1D(
     79                 rsc, mHal.state.constants[0]));
     80     memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m, sizeof(rsc_Matrix));
     81     mDirty = true;
     82     rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
     83 }
     84 
     85 void ProgramVertex::setModelviewMatrix(Context *rsc, const rsc_Matrix *m) const {
     86     if (isUserProgram()) {
     87         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
     88                       "Attempting to set fixed function emulation matrix modelview on user program");
     89         return;
     90     }
     91     if (mHal.state.constants[0] == NULL) {
     92         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
     93                       "Unable to set fixed function emulation matrix modelview because allocation is missing");
     94         return;
     95     }
     96     float *f = static_cast<float *>(rsc->mHal.funcs.allocation.lock1D(
     97                 rsc, mHal.state.constants[0]));
     98     memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m, sizeof(rsc_Matrix));
     99     mDirty = true;
    100     rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
    101 }
    102 
    103 void ProgramVertex::setTextureMatrix(Context *rsc, const rsc_Matrix *m) const {
    104     if (isUserProgram()) {
    105         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
    106                       "Attempting to set fixed function emulation matrix texture on user program");
    107         return;
    108     }
    109     if (mHal.state.constants[0] == NULL) {
    110         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
    111                       "Unable to set fixed function emulation matrix texture because allocation is missing");
    112         return;
    113     }
    114     float *f = static_cast<float *>(rsc->mHal.funcs.allocation.lock1D(
    115             rsc, mHal.state.constants[0]));
    116     memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m, sizeof(rsc_Matrix));
    117     mDirty = true;
    118     rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
    119 }
    120 
    121 void ProgramVertex::getProjectionMatrix(Context *rsc, rsc_Matrix *m) const {
    122     if (isUserProgram()) {
    123         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
    124                       "Attempting to get fixed function emulation matrix projection on user program");
    125         return;
    126     }
    127     if (mHal.state.constants[0] == NULL) {
    128         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
    129                       "Unable to get fixed function emulation matrix projection because allocation is missing");
    130         return;
    131     }
    132     float *f = static_cast<float *>(
    133             rsc->mHal.funcs.allocation.lock1D(rsc, mHal.state.constants[0]));
    134     memcpy(m, &f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], sizeof(rsc_Matrix));
    135     rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
    136 }
    137 
    138 void ProgramVertex::transformToScreen(Context *rsc, float *v4out, const float *v3in) const {
    139     if (isUserProgram()) {
    140         return;
    141     }
    142     float *f = static_cast<float *>(
    143             rsc->mHal.funcs.allocation.lock1D(rsc, mHal.state.constants[0]));
    144     Matrix4x4 mvp;
    145     mvp.loadMultiply((Matrix4x4 *)&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET],
    146                      (Matrix4x4 *)&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
    147     mvp.vectorMultiply(v4out, v3in);
    148     rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
    149 }
    150 
    151 void ProgramVertex::serialize(Context *rsc, OStream *stream) const {
    152 }
    153 
    154 ProgramVertex *ProgramVertex::createFromStream(Context *rsc, IStream *stream) {
    155     return NULL;
    156 }
    157 
    158 
    159 ///////////////////////////////////////////////////////////////////////
    160 
    161 ProgramVertexState::ProgramVertexState() {
    162 }
    163 
    164 ProgramVertexState::~ProgramVertexState() {
    165 }
    166 
    167 void ProgramVertexState::init(Context *rsc) {
    168     ObjectBaseRef<const Element> matrixElem = Element::createRef(rsc, RS_TYPE_MATRIX_4X4,
    169                                                                  RS_KIND_USER, false, 1);
    170     ObjectBaseRef<const Element> f2Elem = Element::createRef(rsc, RS_TYPE_FLOAT_32,
    171                                                              RS_KIND_USER, false, 2);
    172     ObjectBaseRef<const Element> f3Elem = Element::createRef(rsc, RS_TYPE_FLOAT_32,
    173                                                              RS_KIND_USER, false, 3);
    174     ObjectBaseRef<const Element> f4Elem = Element::createRef(rsc, RS_TYPE_FLOAT_32,
    175                                                              RS_KIND_USER, false, 4);
    176 
    177     const char *ebn1[] = { "MV", "P", "TexMatrix", "MVP" };
    178     const Element *ebe1[] = {matrixElem.get(), matrixElem.get(),
    179             matrixElem.get(), matrixElem.get()};
    180     ObjectBaseRef<const Element> constInput = Element::create(rsc, 4, ebe1, ebn1);
    181 
    182     const char *ebn2[] = { "position", "color", "normal", "texture0" };
    183     const Element *ebe2[] = {f4Elem.get(), f4Elem.get(), f3Elem.get(), f2Elem.get()};
    184     ObjectBaseRef<const Element> attrElem = Element::create(rsc, 4, ebe2, ebn2);
    185 
    186     ObjectBaseRef<Type> inputType = Type::getTypeRef(rsc, constInput.get(), 1, 0, 0, false, false, 0);
    187 
    188     const char *shaderString =
    189             RS_SHADER_INTERNAL
    190             "varying vec4 varColor;\n"
    191             "varying vec2 varTex0;\n"
    192             "void main() {\n"
    193             "  gl_Position = UNI_MVP * ATTRIB_position;\n"
    194             "  gl_PointSize = 1.0;\n"
    195             "  varColor = ATTRIB_color;\n"
    196             "  varTex0 = ATTRIB_texture0;\n"
    197             "}\n";
    198 
    199     uint32_t tmp[4];
    200     tmp[0] = RS_PROGRAM_PARAM_CONSTANT;
    201     tmp[1] = (uint32_t)inputType.get();
    202     tmp[2] = RS_PROGRAM_PARAM_INPUT;
    203     tmp[3] = (uint32_t)attrElem.get();
    204 
    205     ProgramVertex *pv = new ProgramVertex(rsc, shaderString, strlen(shaderString),
    206                                           NULL, 0, NULL, tmp, 4);
    207     Allocation *alloc = Allocation::createAllocation(rsc, inputType.get(),
    208                               RS_ALLOCATION_USAGE_SCRIPT | RS_ALLOCATION_USAGE_GRAPHICS_CONSTANTS);
    209     pv->bindAllocation(rsc, alloc, 0);
    210 
    211     mDefaultAlloc.set(alloc);
    212     mDefault.set(pv);
    213 
    214     updateSize(rsc);
    215 }
    216 
    217 void ProgramVertexState::updateSize(Context *rsc) {
    218     float *f = static_cast<float *>(rsc->mHal.funcs.allocation.lock1D(rsc, mDefaultAlloc.get()));
    219 
    220     float surfaceWidth = (float)rsc->getCurrentSurfaceWidth();
    221     float surfaceHeight = (float)rsc->getCurrentSurfaceHeight();
    222 
    223     Matrix4x4 m;
    224     m.loadOrtho(0, surfaceWidth, surfaceHeight, 0, -1, 1);
    225     memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m.m, sizeof(m));
    226     memcpy(&f[RS_PROGRAM_VERTEX_MVP_OFFSET], m.m, sizeof(m));
    227 
    228     m.loadIdentity();
    229     memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m.m, sizeof(m));
    230     memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m.m, sizeof(m));
    231     rsc->mHal.funcs.allocation.unlock1D(rsc, mDefaultAlloc.get());
    232 }
    233 
    234 void ProgramVertexState::deinit(Context *rsc) {
    235     mDefaultAlloc.clear();
    236     mDefault.clear();
    237     mLast.clear();
    238 }
    239 
    240 
    241 namespace android {
    242 namespace renderscript {
    243 
    244 RsProgramVertex rsi_ProgramVertexCreate(Context *rsc, const char * shaderText, size_t shaderLength,
    245                                         const char** textureNames, size_t textureNamesCount,
    246                                         const size_t *textureNamesLength,
    247                                         const uint32_t * params, size_t paramLength) {
    248     ProgramVertex *pv = new ProgramVertex(rsc, shaderText, shaderLength,
    249                                           textureNames, textureNamesCount, textureNamesLength,
    250                                           params, paramLength);
    251     pv->incUserRef();
    252     return pv;
    253 }
    254 
    255 }
    256 }
    257