rsProgramVertex.cpp revision a7f5e0406825151660c1c2e75c287e2fc8368023 
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
21using namespace android;
22using namespace android::renderscript;
23
24
25ProgramVertex::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.string(), mUserShader.length(),
31                                 textureNames, textureNamesCount, textureNamesLength);
32}
33
34ProgramVertex::~ProgramVertex() {
35    mRSC->mHal.funcs.vertex.destroy(mRSC, this);
36}
37
38void 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
67void 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
85void 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
103void 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
121void 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
138void 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
151void ProgramVertex::serialize(Context *rsc, OStream *stream) const {
152}
153
154ProgramVertex *ProgramVertex::createFromStream(Context *rsc, IStream *stream) {
155    return NULL;
156}
157
158
159///////////////////////////////////////////////////////////////////////
160
161ProgramVertexState::ProgramVertexState() {
162}
163
164ProgramVertexState::~ProgramVertexState() {
165}
166
167void 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    Element::Builder constBuilder;
178    constBuilder.add(matrixElem.get(), "MV", 1);
179    constBuilder.add(matrixElem.get(), "P", 1);
180    constBuilder.add(matrixElem.get(), "TexMatrix", 1);
181    constBuilder.add(matrixElem.get(), "MVP", 1);
182    ObjectBaseRef<const Element> constInput = constBuilder.create(rsc);
183
184    Element::Builder inputBuilder;
185    inputBuilder.add(f4Elem.get(), "position", 1);
186    inputBuilder.add(f4Elem.get(), "color", 1);
187    inputBuilder.add(f3Elem.get(), "normal", 1);
188    inputBuilder.add(f2Elem.get(), "texture0", 1);
189    ObjectBaseRef<const Element> attrElem = inputBuilder.create(rsc);
190
191    ObjectBaseRef<Type> inputType = Type::getTypeRef(rsc, constInput.get(), 1, 0, 0, false, false, 0);
192
193    const char *shaderString =
194            RS_SHADER_INTERNAL
195            "varying vec4 varColor;\n"
196            "varying vec2 varTex0;\n"
197            "void main() {\n"
198            "  gl_Position = UNI_MVP * ATTRIB_position;\n"
199            "  gl_PointSize = 1.0;\n"
200            "  varColor = ATTRIB_color;\n"
201            "  varTex0 = ATTRIB_texture0;\n"
202            "}\n";
203
204    uint32_t tmp[4];
205    tmp[0] = RS_PROGRAM_PARAM_CONSTANT;
206    tmp[1] = (uint32_t)inputType.get();
207    tmp[2] = RS_PROGRAM_PARAM_INPUT;
208    tmp[3] = (uint32_t)attrElem.get();
209
210    ProgramVertex *pv = new ProgramVertex(rsc, shaderString, strlen(shaderString),
211                                          NULL, 0, NULL, tmp, 4);
212    Allocation *alloc = Allocation::createAllocation(rsc, inputType.get(),
213                              RS_ALLOCATION_USAGE_SCRIPT | RS_ALLOCATION_USAGE_GRAPHICS_CONSTANTS);
214    pv->bindAllocation(rsc, alloc, 0);
215
216    mDefaultAlloc.set(alloc);
217    mDefault.set(pv);
218
219    updateSize(rsc);
220}
221
222void ProgramVertexState::updateSize(Context *rsc) {
223    float *f = static_cast<float *>(rsc->mHal.funcs.allocation.lock1D(rsc, mDefaultAlloc.get()));
224
225    float surfaceWidth = (float)rsc->getCurrentSurfaceWidth();
226    float surfaceHeight = (float)rsc->getCurrentSurfaceHeight();
227
228    Matrix4x4 m;
229    m.loadOrtho(0, surfaceWidth, surfaceHeight, 0, -1, 1);
230    memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m.m, sizeof(m));
231    memcpy(&f[RS_PROGRAM_VERTEX_MVP_OFFSET], m.m, sizeof(m));
232
233    m.loadIdentity();
234    memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m.m, sizeof(m));
235    memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m.m, sizeof(m));
236    rsc->mHal.funcs.allocation.unlock1D(rsc, mDefaultAlloc.get());
237}
238
239void ProgramVertexState::deinit(Context *rsc) {
240    mDefaultAlloc.clear();
241    mDefault.clear();
242    mLast.clear();
243}
244
245
246namespace android {
247namespace renderscript {
248
249RsProgramVertex rsi_ProgramVertexCreate(Context *rsc, const char * shaderText, size_t shaderLength,
250                                        const char** textureNames, size_t textureNamesCount,
251                                        const size_t *textureNamesLength,
252                                        const uint32_t * params, size_t paramLength) {
253    ProgramVertex *pv = new ProgramVertex(rsc, shaderText, shaderLength,
254                                          textureNames, textureNamesCount, textureNamesLength,
255                                          params, paramLength);
256    pv->incUserRef();
257    return pv;
258}
259
260}
261}
262