Home | History | Annotate | Download | only in driver 
      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 <GLES/gl.h>
     18 #include <GLES2/gl2.h>
     19 #include <GLES/glext.h>
     20 
     21 #include <rs_hal.h>
     22 #include <rsContext.h>
     23 #include <rsPath.h>
     24 
     25 #include "rsdCore.h"
     26 #include "rsdPath.h"
     27 #include "rsdAllocation.h"
     28 #include "rsdGL.h"
     29 #include "rsdVertexArray.h"
     30 #include "rsdShaderCache.h"
     31 
     32 using namespace android;
     33 using namespace android::renderscript;
     34 
     35 class DrvPath {
     36 protected:
     37     DrvPath();
     38 public:
     39     virtual ~DrvPath();
     40     virtual void draw(Context *) = 0;
     41 };
     42 
     43 class DrvPathStatic : public DrvPath {
     44 public:
     45     typedef struct {
     46         float x1, xc, x2;
     47         float y1, yc, y2;
     48     } segment_t;
     49 
     50     segment_t *mSegments;
     51     uint32_t mSegmentCount;
     52 
     53     DrvPathStatic(const Allocation *vtx, const Allocation *loops);
     54     virtual ~DrvPathStatic();
     55 
     56     virtual void draw(Context *);
     57 };
     58 
     59 class DrvPathDynamic : public DrvPath {
     60 public:
     61     DrvPathDynamic();
     62     virtual ~DrvPathDynamic();
     63 };
     64 
     65 static void cleanup(const Context *rsc, const Path *m) {
     66     DrvPath *dp = (DrvPath *)m->mHal.drv;
     67     if (dp) {
     68         delete dp;
     69     }
     70 }
     71 
     72 bool rsdPathInitStatic(const Context *rsc, const Path *m,
     73                        const Allocation *vtx, const Allocation *loops) {
     74     DrvPathStatic *drv = NULL;
     75     cleanup(rsc, m);
     76 
     77     DrvPathStatic *dps = new DrvPathStatic(vtx, loops);
     78     //LOGE("init path m %p,  %p", m, dps);
     79     m->mHal.drv = dps;
     80     return dps != NULL;
     81 }
     82 
     83 bool rsdPathInitDynamic(const Context *rsc, const Path *m) {
     84     return false;
     85 }
     86 
     87 
     88 void rsdPathDraw(const Context *rsc, const Path *m) {
     89     //LOGE("render m=%p", m);
     90 
     91     DrvPath *drv = (DrvPath *)m->mHal.drv;
     92     if(drv) {
     93         //LOGE("render 2 drv=%p", drv);
     94         drv->draw((Context *)rsc);
     95     }
     96 }
     97 
     98 void rsdPathDestroy(const Context *rsc, const Path *m) {
     99     cleanup(rsc, m);
    100     m->mHal.drv = NULL;
    101 }
    102 
    103 
    104 
    105 
    106 DrvPath::DrvPath() {
    107 }
    108 
    109 DrvPath::~DrvPath() {
    110 }
    111 
    112 DrvPathStatic::DrvPathStatic(const Allocation *vtx, const Allocation *loops) {
    113     mSegmentCount = vtx->getType()->getDimX() / 3;
    114     mSegments = new segment_t[mSegmentCount];
    115 /*
    116     const float *fin = (const float *)vtx->getPtr();
    117     for (uint32_t ct=0; ct < mSegmentCount; ct++) {
    118         segment_t *s = &mSegments[ct];
    119         s->x1 = fin[0];
    120         s->y1 = fin[1];
    121 
    122         s->xc = fin[2];
    123         s->yc = fin[3];
    124 
    125         s->x2 = fin[4];
    126         s->y2 = fin[5];
    127         fin += 6;
    128     }
    129     */
    130 }
    131 
    132 DrvPathStatic::~DrvPathStatic() {
    133 }
    134 
    135 void DrvPathStatic::draw(Context *rsc) {
    136     const static float color[24] = {
    137         1.f, 0.f, 0.f, 1.f,  0.5f, 0.f, 0.f, 1.f,
    138         1.f, 0.f, 0.f, 1.f,  0.5f, 0.f, 0.f, 1.f,
    139         1.f, 1.f, 1.f, 1.f,  1.f, 1.f, 1.f, 1.f};
    140     float vtx[12];
    141 
    142     //LOGE("draw");
    143     if (!rsc->setupCheck()) {
    144         return;
    145     }
    146 
    147     RsdHal *dc = (RsdHal *)rsc->mHal.drv;
    148     if (!dc->gl.shaderCache->setup(rsc)) {
    149         return;
    150     }
    151 
    152     RsdVertexArray::Attrib attribs[2];
    153     attribs[0].set(GL_FLOAT, 2, 8, false, (uint32_t)vtx, "ATTRIB_position");
    154     attribs[1].set(GL_FLOAT, 4, 16, false, (uint32_t)color, "ATTRIB_color");
    155     RsdVertexArray va(attribs, 2);
    156     va.setup(rsc);
    157 
    158     //LOGE("mSegmentCount %i", mSegmentCount);
    159     for (uint32_t ct=0; ct < mSegmentCount; ct++) {
    160         segment_t *s = &mSegments[ct];
    161 
    162         vtx[0] = s->x1;
    163         vtx[1] = s->y1;
    164         vtx[2] = s->xc;
    165         vtx[3] = s->yc;
    166 
    167         vtx[4] = s->x2;
    168         vtx[5] = s->y2;
    169         vtx[6] = s->xc;
    170         vtx[7] = s->yc;
    171 
    172         vtx[8] = s->x1;
    173         vtx[9] = s->y1;
    174         vtx[10] = s->x2;
    175         vtx[11] = s->y2;
    176 
    177         RSD_CALL_GL(glDrawArrays, GL_LINES, 0, 6);
    178     }
    179 
    180 }
    181 
    182 DrvPathDynamic::DrvPathDynamic() {
    183 }
    184 
    185 DrvPathDynamic::~DrvPathDynamic() {
    186 }
    187