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      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 "rsProgramRaster.h"
     19 
     20 #include <GLES/gl.h>
     21 #include <GLES/glext.h>
     22 
     23 using namespace android;
     24 using namespace android::renderscript;
     25 
     26 
     27 ProgramRaster::ProgramRaster(Context *rsc,
     28                              bool pointSmooth,
     29                              bool lineSmooth,
     30                              bool pointSprite) :
     31     Program(rsc)
     32 {
     33     mAllocFile = __FILE__;
     34     mAllocLine = __LINE__;
     35     mPointSmooth = pointSmooth;
     36     mLineSmooth = lineSmooth;
     37     mPointSprite = pointSprite;
     38 
     39     mPointSize = 1.0f;
     40     mLineWidth = 1.0f;
     41 }
     42 
     43 ProgramRaster::~ProgramRaster()
     44 {
     45 }
     46 
     47 void ProgramRaster::setLineWidth(float s)
     48 {
     49     mLineWidth = s;
     50 }
     51 
     52 void ProgramRaster::setPointSize(float s)
     53 {
     54     mPointSize = s;
     55 }
     56 
     57 void ProgramRaster::setupGL(const Context *rsc, ProgramRasterState *state)
     58 {
     59     if (state->mLast.get() == this) {
     60         return;
     61     }
     62     state->mLast.set(this);
     63 
     64     glPointSize(mPointSize);
     65     if (mPointSmooth) {
     66         glEnable(GL_POINT_SMOOTH);
     67     } else {
     68         glDisable(GL_POINT_SMOOTH);
     69     }
     70 
     71     glLineWidth(mLineWidth);
     72     if (mLineSmooth) {
     73         glEnable(GL_LINE_SMOOTH);
     74     } else {
     75         glDisable(GL_LINE_SMOOTH);
     76     }
     77 
     78     if (rsc->checkVersion1_1()) {
     79         if (mPointSprite) {
     80             glEnable(GL_POINT_SPRITE_OES);
     81         } else {
     82             glDisable(GL_POINT_SPRITE_OES);
     83         }
     84     }
     85 }
     86 
     87 void ProgramRaster::setupGL2(const Context *rsc, ProgramRasterState *state)
     88 {
     89     if (state->mLast.get() == this) {
     90         return;
     91     }
     92     state->mLast.set(this);
     93 }
     94 
     95 
     96 
     97 ProgramRasterState::ProgramRasterState()
     98 {
     99 }
    100 
    101 ProgramRasterState::~ProgramRasterState()
    102 {
    103 }
    104 
    105 void ProgramRasterState::init(Context *rsc, int32_t w, int32_t h)
    106 {
    107     ProgramRaster *pr = new ProgramRaster(rsc, false, false, false);
    108     mDefault.set(pr);
    109 }
    110 
    111 void ProgramRasterState::deinit(Context *rsc)
    112 {
    113     mDefault.clear();
    114     mLast.clear();
    115 }
    116 
    117 
    118 namespace android {
    119 namespace renderscript {
    120 
    121 RsProgramRaster rsi_ProgramRasterCreate(Context * rsc, RsElement in, RsElement out,
    122                                       bool pointSmooth,
    123                                       bool lineSmooth,
    124                                       bool pointSprite)
    125 {
    126     ProgramRaster *pr = new ProgramRaster(rsc,
    127                                           pointSmooth,
    128                                           lineSmooth,
    129                                           pointSprite);
    130     pr->incUserRef();
    131     return pr;
    132 }
    133 
    134 void rsi_ProgramRasterSetPointSize(Context * rsc, RsProgramRaster vpr, float s)
    135 {
    136     ProgramRaster *pr = static_cast<ProgramRaster *>(vpr);
    137     pr->setPointSize(s);
    138 }
    139 
    140 void rsi_ProgramRasterSetLineWidth(Context * rsc, RsProgramRaster vpr, float s)
    141 {
    142     ProgramRaster *pr = static_cast<ProgramRaster *>(vpr);
    143     pr->setLineWidth(s);
    144 }
    145 
    146 
    147 }
    148 }
    149 
    150