rsProgramVertex.cpp revision f313dc32d5ea68a7c48fb4ec6e131ec2fb97ce2d 
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, mUserShaderLen,
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    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
217void 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
234void ProgramVertexState::deinit(Context *rsc) {
235    mDefaultAlloc.clear();
236    mDefault.clear();
237    mLast.clear();
238}
239
240
241namespace android {
242namespace renderscript {
243
244RsProgramVertex 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