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 <rs_hal.h>
18 #include <rsContext.h>
19
20 #include <GLES/gl.h>
21 #include <GLES2/gl2.h>
22
23 #include "rsdGL.h"
24 #include "rsdCore.h"
25 #include "rsdVertexArray.h"
26 #include "rsdShaderCache.h"
27
28 using android::renderscript::Context;
29
RsdVertexArray(const Attrib * attribs,uint32_t numAttribs)30 RsdVertexArray::RsdVertexArray(const Attrib *attribs, uint32_t numAttribs) {
31 mAttribs = attribs;
32 mCount = numAttribs;
33 }
34
~RsdVertexArray()35 RsdVertexArray::~RsdVertexArray() {
36 }
37
Attrib()38 RsdVertexArray::Attrib::Attrib() {
39 clear();
40 }
41
clear()42 void RsdVertexArray::Attrib::clear() {
43 buffer = 0;
44 offset = 0;
45 type = 0;
46 size = 0;
47 stride = 0;
48 ptr = nullptr;
49 normalized = false;
50 name.assign("");
51 }
52
set(uint32_t type,uint32_t size,uint32_t stride,bool normalized,size_t offset,const char * name)53 void RsdVertexArray::Attrib::set(uint32_t type, uint32_t size, uint32_t stride,
54 bool normalized, size_t offset,
55 const char *name) {
56 clear();
57 this->type = type;
58 this->size = size;
59 this->offset = offset;
60 this->normalized = normalized;
61 this->stride = stride;
62 this->name.assign(name);
63 }
64
logAttrib(uint32_t idx,uint32_t slot) const65 void RsdVertexArray::logAttrib(uint32_t idx, uint32_t slot) const {
66 if (idx == 0) {
67 ALOGV("Starting vertex attribute binding");
68 }
69 ALOGV("va %i: slot=%i name=%s buf=%i ptr=%p size=%i type=0x%x stride=0x%x norm=%i offset=0x%p",
70 idx, slot,
71 mAttribs[idx].name.c_str(),
72 mAttribs[idx].buffer,
73 mAttribs[idx].ptr,
74 mAttribs[idx].size,
75 mAttribs[idx].type,
76 mAttribs[idx].stride,
77 mAttribs[idx].normalized,
78 (void*)mAttribs[idx].offset);
79 }
80
setup(const Context * rsc) const81 void RsdVertexArray::setup(const Context *rsc) const {
82
83 RsdHal *dc = (RsdHal *)rsc->mHal.drv;
84 RsdVertexArrayState *state = dc->gl.vertexArrayState;
85 RsdShaderCache *sc = dc->gl.shaderCache;
86
87 rsdGLCheckError(rsc, "RsdVertexArray::setup start");
88 uint32_t maxAttrs = state->mAttrsEnabledSize;
89
90 for (uint32_t ct=1; ct < maxAttrs; ct++) {
91 if(state->mAttrsEnabled[ct]) {
92 glDisableVertexAttribArray(ct);
93 state->mAttrsEnabled[ct] = false;
94 }
95 }
96
97 rsdGLCheckError(rsc, "RsdVertexArray::setup disabled");
98 for (uint32_t ct=0; ct < mCount; ct++) {
99 int32_t slot = sc->vtxAttribSlot(mAttribs[ct].name);
100 if (rsc->props.mLogShadersAttr) {
101 logAttrib(ct, slot);
102 }
103 if (slot < 0 || slot >= (int32_t)maxAttrs) {
104 continue;
105 }
106 glEnableVertexAttribArray(slot);
107 state->mAttrsEnabled[slot] = true;
108 glBindBuffer(GL_ARRAY_BUFFER, mAttribs[ct].buffer);
109 glVertexAttribPointer(slot,
110 mAttribs[ct].size,
111 mAttribs[ct].type,
112 mAttribs[ct].normalized,
113 mAttribs[ct].stride,
114 mAttribs[ct].ptr + mAttribs[ct].offset);
115 }
116 rsdGLCheckError(rsc, "RsdVertexArray::setup done");
117 }
118 ////////////////////////////////////////////
RsdVertexArrayState()119 RsdVertexArrayState::RsdVertexArrayState() {
120 mAttrsEnabled = nullptr;
121 mAttrsEnabledSize = 0;
122 }
123
~RsdVertexArrayState()124 RsdVertexArrayState::~RsdVertexArrayState() {
125 if (mAttrsEnabled) {
126 delete[] mAttrsEnabled;
127 mAttrsEnabled = nullptr;
128 }
129 }
init(uint32_t maxAttrs)130 void RsdVertexArrayState::init(uint32_t maxAttrs) {
131 mAttrsEnabledSize = maxAttrs;
132 mAttrsEnabled = new bool[mAttrsEnabledSize];
133 for (uint32_t ct = 0; ct < mAttrsEnabledSize; ct++) {
134 mAttrsEnabled[ct] = false;
135 }
136 }
137