rsProgramVertex.cpp revision 8ce125be69531dbf3a7e856d5e59d1b8e2789db0 
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#include "rsContext.h"
18#include "rsProgramVertex.h"
19
20using namespace android;
21using namespace android::renderscript;
22
23
24ProgramVertex::ProgramVertex(Element *in, Element *out) :
25    Program(in, out)
26{
27    mTextureMatrixEnable = false;
28}
29
30ProgramVertex::~ProgramVertex()
31{
32}
33
34static void logMatrix(const char *txt, const float *f)
35{
36    LOGE("Matrix %s, %p", txt, f);
37    LOGE("%6.2f, %6.2f, %6.2f, %6.2f", f[0], f[4], f[8], f[12]);
38    LOGE("%6.2f, %6.2f, %6.2f, %6.2f", f[1], f[5], f[9], f[13]);
39    LOGE("%6.2f, %6.2f, %6.2f, %6.2f", f[2], f[6], f[10], f[14]);
40    LOGE("%6.2f, %6.2f, %6.2f, %6.2f", f[3], f[7], f[11], f[15]);
41}
42
43void ProgramVertex::setupGL()
44{
45    const float *f = static_cast<const float *>(mConstants[0]->getPtr());
46
47    glMatrixMode(GL_TEXTURE);
48    if (mTextureMatrixEnable) {
49        glLoadMatrixf(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET]);
50    } else {
51        glLoadIdentity();
52    }
53
54    //logMatrix("prog", &f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
55    //logMatrix("model", &f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET]);
56
57    glMatrixMode(GL_PROJECTION);
58    glLoadMatrixf(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
59    glMatrixMode(GL_MODELVIEW);
60    glLoadMatrixf(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET]);
61}
62
63void ProgramVertex::setConstantType(uint32_t slot, const Type *t)
64{
65    mConstantTypes[slot].set(t);
66}
67
68void ProgramVertex::bindAllocation(uint32_t slot, Allocation *a)
69{
70    mConstants[slot].set(a);
71}
72
73
74ProgramVertexState::ProgramVertexState()
75{
76    mPV = NULL;
77}
78
79ProgramVertexState::~ProgramVertexState()
80{
81    delete mPV;
82}
83
84void ProgramVertexState::init(Context *rsc, int32_t w, int32_t h)
85{
86    ProgramVertex *pv = new ProgramVertex(NULL, NULL);
87    Allocation *alloc = (Allocation *)
88        rsi_AllocationCreatePredefSized(rsc, RS_ELEMENT_USER_FLOAT, 48);
89    mDefaultAlloc.set(alloc);
90    mDefault.set(pv);
91
92    pv->bindAllocation(0, alloc);
93
94    Matrix m;
95    m.loadOrtho(0,w, h,0, -1,1);
96    alloc->subData(RS_PROGRAM_VERTEX_PROJECTION_OFFSET, 16, &m.m[0]);
97
98    m.loadIdentity();
99    alloc->subData(RS_PROGRAM_VERTEX_MODELVIEW_OFFSET, 16, &m.m[0]);
100}
101
102
103namespace android {
104namespace renderscript {
105
106void rsi_ProgramVertexBegin(Context *rsc, RsElement in, RsElement out)
107{
108    delete rsc->mStateVertex.mPV;
109    rsc->mStateVertex.mPV = new ProgramVertex((Element *)in, (Element *)out);
110}
111
112RsProgramVertex rsi_ProgramVertexCreate(Context *rsc)
113{
114    ProgramVertex *pv = rsc->mStateVertex.mPV;
115    pv->incRef();
116    rsc->mStateVertex.mPV = 0;
117    return pv;
118}
119
120void rsi_ProgramVertexBindAllocation(Context *rsc, RsProgramVertex vpgm, uint32_t slot, RsAllocation constants)
121{
122    ProgramVertex *pv = static_cast<ProgramVertex *>(vpgm);
123    pv->bindAllocation(slot, static_cast<Allocation *>(constants));
124}
125
126void rsi_ProgramVertexSetType(Context *rsc, uint32_t slot, RsType constants)
127{
128    rsc->mStateVertex.mPV->setConstantType(slot, static_cast<const Type *>(constants));
129}
130
131void rsi_ProgramVertexSetTextureMatrixEnable(Context *rsc, bool enable)
132{
133    rsc->mStateVertex.mPV->setTextureMatrixEnable(enable);
134}
135
136
137
138}
139}
140