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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 
18 #include "rsdCore.h"
19 #include "rsdFrameBuffer.h"
20 #include "rsdFrameBufferObj.h"
21 #include "rsdAllocation.h"
22 
23 #include "rsContext.h"
24 #include "rsFBOCache.h"
25 
26 #include <GLES2/gl2.h>
27 #include <GLES2/gl2ext.h>
28 
29 using namespace android;
30 using namespace android::renderscript;
31 
setDepthAttachment(const Context * rsc,const FBOCache * fb)32 void setDepthAttachment(const Context *rsc, const FBOCache *fb) {
33     RsdFrameBufferObj *fbo = (RsdFrameBufferObj*)fb->mHal.drv;
34 
35     DrvAllocation *depth = NULL;
36     if (fb->mHal.state.depthTarget != NULL) {
37         depth = (DrvAllocation *)fb->mHal.state.depthTarget->mHal.drv;
38 
39         if (depth->uploadDeferred) {
40             rsdAllocationSyncAll(rsc, fb->mHal.state.depthTarget,
41                                  RS_ALLOCATION_USAGE_SCRIPT);
42         }
43     }
44     fbo->setDepthTarget(depth);
45 }
46 
setColorAttachment(const Context * rsc,const FBOCache * fb)47 void setColorAttachment(const Context *rsc, const FBOCache *fb) {
48     RsdFrameBufferObj *fbo = (RsdFrameBufferObj*)fb->mHal.drv;
49     // Now attach color targets
50     for (uint32_t i = 0; i < fb->mHal.state.colorTargetsCount; i ++) {
51         DrvAllocation *color = NULL;
52         if (fb->mHal.state.colorTargets[i] != NULL) {
53             color = (DrvAllocation *)fb->mHal.state.colorTargets[i]->mHal.drv;
54 
55             if (color->uploadDeferred) {
56                 rsdAllocationSyncAll(rsc, fb->mHal.state.colorTargets[i],
57                                      RS_ALLOCATION_USAGE_SCRIPT);
58             }
59         }
60         fbo->setColorTarget(color, i);
61     }
62 }
63 
rsdFrameBufferInit(const Context * rsc,const FBOCache * fb)64 bool rsdFrameBufferInit(const Context *rsc, const FBOCache *fb) {
65     RsdFrameBufferObj *fbo = new RsdFrameBufferObj();
66     if (fbo == NULL) {
67         return false;
68     }
69     fb->mHal.drv = fbo;
70 
71     RsdHal *dc = (RsdHal *)rsc->mHal.drv;
72     dc->gl.currentFrameBuffer = fbo;
73 
74     return true;
75 }
76 
rsdFrameBufferSetActive(const Context * rsc,const FBOCache * fb)77 void rsdFrameBufferSetActive(const Context *rsc, const FBOCache *fb) {
78     setDepthAttachment(rsc, fb);
79     setColorAttachment(rsc, fb);
80 
81     RsdFrameBufferObj *fbo = (RsdFrameBufferObj *)fb->mHal.drv;
82     if (fb->mHal.state.colorTargets[0]) {
83         fbo->setDimensions(fb->mHal.state.colorTargets[0]->getType()->getDimX(),
84                            fb->mHal.state.colorTargets[0]->getType()->getDimY());
85     } else if (fb->mHal.state.depthTarget) {
86         fbo->setDimensions(fb->mHal.state.depthTarget->getType()->getDimX(),
87                            fb->mHal.state.depthTarget->getType()->getDimY());
88     }
89 
90     fbo->setActive(rsc);
91 }
92 
rsdFrameBufferDestroy(const Context * rsc,const FBOCache * fb)93 void rsdFrameBufferDestroy(const Context *rsc, const FBOCache *fb) {
94     RsdFrameBufferObj *fbo = (RsdFrameBufferObj *)fb->mHal.drv;
95     delete fbo;
96     fb->mHal.drv = NULL;
97 }
98 
99 
100