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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "rsContext.h"
#include <GLES/gl.h>
using namespace android;
using namespace android::renderscript;
Element::Element(Context *rsc) : ObjectBase(rsc)
{
mAllocFile = __FILE__;
mAllocLine = __LINE__;
mComponents = NULL;
mComponentCount = 0;
}
Element::Element(Context *rsc, uint32_t count) : ObjectBase(rsc)
{
mAllocFile = __FILE__;
mAllocLine = __LINE__;
mComponents = new ObjectBaseRef<Component> [count];
mComponentCount = count;
}
Element::~Element()
{
clear();
}
void Element::clear()
{
delete [] mComponents;
mComponents = NULL;
mComponentCount = 0;
}
void Element::setComponent(uint32_t idx, Component *c)
{
rsAssert(!mComponents[idx].get());
rsAssert(idx < mComponentCount);
mComponents[idx].set(c);
c->incUserRef();
}
size_t Element::getSizeBits() const
{
size_t total = 0;
for (size_t ct=0; ct < mComponentCount; ct++) {
total += mComponents[ct]->getBits();
}
return total;
}
size_t Element::getComponentOffsetBits(uint32_t componentNumber) const
{
size_t offset = 0;
for (uint32_t ct = 0; ct < componentNumber; ct++) {
offset += mComponents[ct]->getBits();
}
return offset;
}
uint32_t Element::getGLType() const
{
int bits[4];
if (mComponentCount > 4) {
return 0;
}
for (uint32_t ct=0; ct < mComponentCount; ct++) {
bits[ct] = mComponents[ct]->getBits();
if (mComponents[ct]->getType() != Component::UNSIGNED) {
return 0;
}
if (!mComponents[ct]->getIsNormalized()) {
return 0;
}
}
switch(mComponentCount) {
case 1:
if (bits[0] == 8) {
return GL_UNSIGNED_BYTE;
}
return 0;
case 2:
if ((bits[0] == 8) &&
(bits[1] == 8)) {
return GL_UNSIGNED_BYTE;
}
return 0;
case 3:
if ((bits[0] == 8) &&
(bits[1] == 8) &&
(bits[2] == 8)) {
return GL_UNSIGNED_BYTE;
}
if ((bits[0] == 5) &&
(bits[1] == 6) &&
(bits[2] == 5)) {
return GL_UNSIGNED_SHORT_5_6_5;
}
return 0;
case 4:
if ((bits[0] == 8) &&
(bits[1] == 8) &&
(bits[2] == 8) &&
(bits[3] == 8)) {
return GL_UNSIGNED_BYTE;
}
if ((bits[0] == 4) &&
(bits[1] == 4) &&
(bits[2] == 4) &&
(bits[3] == 4)) {
return GL_UNSIGNED_SHORT_4_4_4_4;
}
if ((bits[0] == 5) &&
(bits[1] == 5) &&
(bits[2] == 5) &&
(bits[3] == 1)) {
return GL_UNSIGNED_SHORT_5_5_5_1;
}
}
return 0;
}
uint32_t Element::getGLFormat() const
{
switch(mComponentCount) {
case 1:
if (mComponents[0]->getKind() == Component::ALPHA) {
return GL_ALPHA;
}
if (mComponents[0]->getKind() == Component::LUMINANCE) {
return GL_LUMINANCE;
}
break;
case 2:
if ((mComponents[0]->getKind() == Component::LUMINANCE) &&
(mComponents[1]->getKind() == Component::ALPHA)) {
return GL_LUMINANCE_ALPHA;
}
break;
case 3:
if ((mComponents[0]->getKind() == Component::RED) &&
(mComponents[1]->getKind() == Component::GREEN) &&
(mComponents[2]->getKind() == Component::BLUE)) {
return GL_RGB;
}
break;
case 4:
if ((mComponents[0]->getKind() == Component::RED) &&
(mComponents[1]->getKind() == Component::GREEN) &&
(mComponents[2]->getKind() == Component::BLUE) &&
(mComponents[3]->getKind() == Component::ALPHA)) {
return GL_RGBA;
}
break;
}
return 0;
}
ElementState::ElementState()
{
}
ElementState::~ElementState()
{
}
/////////////////////////////////////////
//
namespace android {
namespace renderscript {
void rsi_ElementBegin(Context *rsc)
{
rsc->mStateElement.mComponentBuildList.clear();
}
void rsi_ElementAdd(Context *rsc, RsDataKind dk, RsDataType dt, bool isNormalized, size_t bits, const char *name)
{
ElementState * sec = &rsc->mStateElement;
Component *c = new Component(rsc,
static_cast<Component::DataKind>(dk),
static_cast<Component::DataType>(dt),
isNormalized,
bits,
name);
sec->mComponentBuildList.add(c);
}
RsElement rsi_ElementCreate(Context *rsc)
{
ElementState * sec = &rsc->mStateElement;
Element *se = new Element(rsc, sec->mComponentBuildList.size());
for (size_t ct = 0; ct < se->getComponentCount(); ct++) {
se->setComponent(ct, sec->mComponentBuildList[ct]);
}
rsc->mStateElement.mComponentBuildList.clear();
se->incUserRef();
return se;
}
}
}
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