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 android::renderscript::ProgramVertex;
22 using android::renderscript::ProgramVertexState;
23 
ProgramVertex(Context * rsc,const char * shaderText,size_t shaderLength,const char ** textureNames,size_t textureNamesCount,const size_t * textureNamesLength,const uintptr_t * params,size_t paramLength)24 ProgramVertex::ProgramVertex(Context *rsc, const char * shaderText, size_t shaderLength,
25                              const char** textureNames, size_t textureNamesCount, const size_t *textureNamesLength,
26 
27                              const uintptr_t * params, size_t paramLength)
28     : Program(rsc, shaderText, shaderLength, params, paramLength) {
29     mRSC->mHal.funcs.vertex.init(mRSC, this, mUserShader, mUserShaderLen,
30                                  textureNames, textureNamesCount, textureNamesLength);
31 }
32 
~ProgramVertex()33 ProgramVertex::~ProgramVertex() {
34     mRSC->mHal.funcs.vertex.destroy(mRSC, this);
35 }
36 
setup(Context * rsc,ProgramVertexState * state)37 void ProgramVertex::setup(Context *rsc, ProgramVertexState *state) {
38     if ((state->mLast.get() == this) && !mDirty) {
39         return;
40     }
41 
42     if (!isUserProgram()) {
43         if (mHal.state.constants[0] == nullptr) {
44             rsc->setError(RS_ERROR_FATAL_UNKNOWN,
45                           "Unable to set fixed function emulation matrices because allocation is missing");
46             return;
47         }
48         float *f = static_cast<float *>(rsc->mHal.funcs.allocation.lock1D(
49                 rsc, mHal.state.constants[0]));
50         Matrix4x4 mvp;
51         mvp.load(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
52         Matrix4x4 t;
53         t.load(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET]);
54         mvp.multiply(&t);
55         for (uint32_t i = 0; i < 16; i ++) {
56             f[RS_PROGRAM_VERTEX_MVP_OFFSET + i] = mvp.m[i];
57         }
58         rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
59     }
60 
61     state->mLast.set(this);
62 
63     rsc->mHal.funcs.vertex.setActive(rsc, this);
64 }
65 
setProjectionMatrix(Context * rsc,const rsc_Matrix * m) const66 void ProgramVertex::setProjectionMatrix(Context *rsc, const rsc_Matrix *m) const {
67     if (isUserProgram()) {
68         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
69                       "Attempting to set fixed function emulation matrix projection on user program");
70         return;
71     }
72     if (mHal.state.constants[0] == nullptr) {
73         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
74                       "Unable to set fixed function emulation matrix projection because allocation is missing");
75         return;
76     }
77     float *f = static_cast<float *>(rsc->mHal.funcs.allocation.lock1D(
78                 rsc, mHal.state.constants[0]));
79     memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m, sizeof(rsc_Matrix));
80     mDirty = true;
81     rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
82 }
83 
setModelviewMatrix(Context * rsc,const rsc_Matrix * m) const84 void ProgramVertex::setModelviewMatrix(Context *rsc, const rsc_Matrix *m) const {
85     if (isUserProgram()) {
86         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
87                       "Attempting to set fixed function emulation matrix modelview on user program");
88         return;
89     }
90     if (mHal.state.constants[0] == nullptr) {
91         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
92                       "Unable to set fixed function emulation matrix modelview because allocation is missing");
93         return;
94     }
95     float *f = static_cast<float *>(rsc->mHal.funcs.allocation.lock1D(
96                 rsc, mHal.state.constants[0]));
97     memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m, sizeof(rsc_Matrix));
98     mDirty = true;
99     rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
100 }
101 
setTextureMatrix(Context * rsc,const rsc_Matrix * m) const102 void ProgramVertex::setTextureMatrix(Context *rsc, const rsc_Matrix *m) const {
103     if (isUserProgram()) {
104         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
105                       "Attempting to set fixed function emulation matrix texture on user program");
106         return;
107     }
108     if (mHal.state.constants[0] == nullptr) {
109         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
110                       "Unable to set fixed function emulation matrix texture because allocation is missing");
111         return;
112     }
113     float *f = static_cast<float *>(rsc->mHal.funcs.allocation.lock1D(
114             rsc, mHal.state.constants[0]));
115     memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m, sizeof(rsc_Matrix));
116     mDirty = true;
117     rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
118 }
119 
getProjectionMatrix(Context * rsc,rsc_Matrix * m) const120 void ProgramVertex::getProjectionMatrix(Context *rsc, rsc_Matrix *m) const {
121     if (isUserProgram()) {
122         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
123                       "Attempting to get fixed function emulation matrix projection on user program");
124         return;
125     }
126     if (mHal.state.constants[0] == nullptr) {
127         rsc->setError(RS_ERROR_FATAL_UNKNOWN,
128                       "Unable to get fixed function emulation matrix projection because allocation is missing");
129         return;
130     }
131     float *f = static_cast<float *>(
132             rsc->mHal.funcs.allocation.lock1D(rsc, mHal.state.constants[0]));
133     memcpy(m, &f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], sizeof(rsc_Matrix));
134     rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
135 }
136 
transformToScreen(Context * rsc,float * v4out,const float * v3in) const137 void ProgramVertex::transformToScreen(Context *rsc, float *v4out, const float *v3in) const {
138     if (isUserProgram()) {
139         return;
140     }
141     float *f = static_cast<float *>(
142             rsc->mHal.funcs.allocation.lock1D(rsc, mHal.state.constants[0]));
143     Matrix4x4 mvp;
144     mvp.loadMultiply((Matrix4x4 *)&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET],
145                      (Matrix4x4 *)&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
146     mvp.vectorMultiply(v4out, v3in);
147     rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
148 }
149 
serialize(Context * rsc,OStream * stream) const150 void ProgramVertex::serialize(Context *rsc, OStream *stream) const {
151 }
152 
createFromStream(Context * rsc,IStream * stream)153 ProgramVertex *ProgramVertex::createFromStream(Context *rsc, IStream *stream) {
154     return nullptr;
155 }
156 
157 
158 ///////////////////////////////////////////////////////////////////////
159 
ProgramVertexState()160 ProgramVertexState::ProgramVertexState() {
161 }
162 
~ProgramVertexState()163 ProgramVertexState::~ProgramVertexState() {
164 }
165 
init(Context * rsc)166 void ProgramVertexState::init(Context *rsc) {
167     ObjectBaseRef<const Element> matrixElem = Element::createRef(rsc, RS_TYPE_MATRIX_4X4,
168                                                                  RS_KIND_USER, false, 1);
169     ObjectBaseRef<const Element> f2Elem = Element::createRef(rsc, RS_TYPE_FLOAT_32,
170                                                              RS_KIND_USER, false, 2);
171     ObjectBaseRef<const Element> f3Elem = Element::createRef(rsc, RS_TYPE_FLOAT_32,
172                                                              RS_KIND_USER, false, 3);
173     ObjectBaseRef<const Element> f4Elem = Element::createRef(rsc, RS_TYPE_FLOAT_32,
174                                                              RS_KIND_USER, false, 4);
175 
176     const char *ebn1[] = { "MV", "P", "TexMatrix", "MVP" };
177     const Element *ebe1[] = {matrixElem.get(), matrixElem.get(),
178             matrixElem.get(), matrixElem.get()};
179     ObjectBaseRef<const Element> constInput = Element::create(rsc, 4, ebe1, ebn1);
180 
181     const char *ebn2[] = { "position", "color", "normal", "texture0" };
182     const Element *ebe2[] = {f4Elem.get(), f4Elem.get(), f3Elem.get(), f2Elem.get()};
183     ObjectBaseRef<const Element> attrElem = Element::create(rsc, 4, ebe2, ebn2);
184 
185     ObjectBaseRef<Type> inputType = Type::getTypeRef(rsc, constInput.get(), 1);
186 
187     const char *shaderString =
188             RS_SHADER_INTERNAL
189             "varying vec4 varColor;\n"
190             "varying vec2 varTex0;\n"
191             "void main() {\n"
192             "  gl_Position = UNI_MVP * ATTRIB_position;\n"
193             "  gl_PointSize = 1.0;\n"
194             "  varColor = ATTRIB_color;\n"
195             "  varTex0 = ATTRIB_texture0;\n"
196             "}\n";
197 
198     uintptr_t tmp[4];
199     tmp[0] = RS_PROGRAM_PARAM_CONSTANT;
200     tmp[1] = (uintptr_t)inputType.get();
201     tmp[2] = RS_PROGRAM_PARAM_INPUT;
202     tmp[3] = (uintptr_t)attrElem.get();
203 
204     ProgramVertex *pv = new ProgramVertex(rsc, shaderString, strlen(shaderString),
205                                           nullptr, 0, nullptr, tmp, 4);
206     Allocation *alloc = Allocation::createAllocation(rsc, inputType.get(),
207                               RS_ALLOCATION_USAGE_SCRIPT | RS_ALLOCATION_USAGE_GRAPHICS_CONSTANTS);
208     pv->bindAllocation(rsc, alloc, 0);
209 
210     mDefaultAlloc.set(alloc);
211     mDefault.set(pv);
212 
213     updateSize(rsc);
214 }
215 
updateSize(Context * rsc)216 void ProgramVertexState::updateSize(Context *rsc) {
217     float *f = static_cast<float *>(rsc->mHal.funcs.allocation.lock1D(rsc, mDefaultAlloc.get()));
218 
219     float surfaceWidth = (float)rsc->getCurrentSurfaceWidth();
220     float surfaceHeight = (float)rsc->getCurrentSurfaceHeight();
221 
222     Matrix4x4 m;
223     m.loadOrtho(0, surfaceWidth, surfaceHeight, 0, -1, 1);
224     memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m.m, sizeof(m));
225     memcpy(&f[RS_PROGRAM_VERTEX_MVP_OFFSET], m.m, sizeof(m));
226 
227     m.loadIdentity();
228     memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m.m, sizeof(m));
229     memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m.m, sizeof(m));
230     rsc->mHal.funcs.allocation.unlock1D(rsc, mDefaultAlloc.get());
231 }
232 
deinit(Context * rsc)233 void ProgramVertexState::deinit(Context *rsc) {
234     mDefaultAlloc.clear();
235     mDefault.clear();
236     mLast.clear();
237 }
238 
239 
240 namespace android {
241 namespace renderscript {
242 
rsi_ProgramVertexCreate(Context * rsc,const char * shaderText,size_t shaderLength,const char ** textureNames,size_t textureNamesCount,const size_t * textureNamesLength,const uintptr_t * params,size_t paramLength)243 RsProgramVertex rsi_ProgramVertexCreate(Context *rsc, const char * shaderText, size_t shaderLength,
244                                         const char** textureNames, size_t textureNamesCount,
245                                         const size_t *textureNamesLength,
246                                         const uintptr_t * params, size_t paramLength) {
247     ProgramVertex *pv = new ProgramVertex(rsc, shaderText, shaderLength,
248                                           textureNames, textureNamesCount, textureNamesLength,
249                                           params, paramLength);
250     pv->incUserRef();
251     return pv;
252 }
253 
254 } // namespace renderscript
255 } // namespace android
256