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/*
* Copyright (C) 2011 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 "GLSharedGroup.h"
/**** BufferData ****/
BufferData::BufferData() : m_size(0) {};
BufferData::BufferData(GLsizeiptr size, void * data) : m_size(size)
{
void * buffer = NULL;
if (size>0) buffer = m_fixedBuffer.alloc(size);
if (data) memcpy(buffer, data, size);
}
/**** ProgramData ****/
ProgramData::ProgramData() : m_numIndexes(0),
m_initialized(false),
m_locShiftWAR(false)
{
m_Indexes = NULL;
}
void ProgramData::initProgramData(GLuint numIndexes)
{
m_initialized = true;
m_numIndexes = numIndexes;
delete[] m_Indexes;
m_Indexes = new IndexInfo[numIndexes];
m_locShiftWAR = false;
}
bool ProgramData::isInitialized()
{
return m_initialized;
}
ProgramData::~ProgramData()
{
delete[] m_Indexes;
m_Indexes = NULL;
}
void ProgramData::setIndexInfo(GLuint index, GLint base, GLint size, GLenum type)
{
if (index>=m_numIndexes)
return;
m_Indexes[index].base = base;
m_Indexes[index].size = size;
m_Indexes[index].type = type;
if (index > 0) {
m_Indexes[index].appBase = m_Indexes[index-1].appBase +
m_Indexes[index-1].size;
}
else {
m_Indexes[index].appBase = 0;
}
m_Indexes[index].hostLocsPerElement = 1;
m_Indexes[index].flags = 0;
m_Indexes[index].samplerValue = 0;
}
void ProgramData::setIndexFlags(GLuint index, GLuint flags)
{
if (index >= m_numIndexes)
return;
m_Indexes[index].flags |= flags;
}
GLuint ProgramData::getIndexForLocation(GLint location)
{
GLuint index = m_numIndexes;
GLint minDist = -1;
for (GLuint i=0;i<m_numIndexes;++i)
{
GLint dist = location - m_Indexes[i].base;
if (dist >= 0 &&
(minDist < 0 || dist < minDist)) {
index = i;
minDist = dist;
}
}
return index;
}
GLenum ProgramData::getTypeForLocation(GLint location)
{
GLuint index = getIndexForLocation(location);
if (index<m_numIndexes) {
return m_Indexes[index].type;
}
return 0;
}
void ProgramData::setupLocationShiftWAR()
{
m_locShiftWAR = false;
for (GLuint i=0; i<m_numIndexes; i++) {
if (0 != (m_Indexes[i].base & 0xffff)) {
return;
}
}
// if we have one uniform at location 0, we do not need the WAR.
if (m_numIndexes > 1) {
m_locShiftWAR = true;
}
}
GLint ProgramData::locationWARHostToApp(GLint hostLoc, GLint arrIndex)
{
if (!m_locShiftWAR) return hostLoc;
GLuint index = getIndexForLocation(hostLoc);
if (index<m_numIndexes) {
if (arrIndex > 0) {
m_Indexes[index].hostLocsPerElement =
(hostLoc - m_Indexes[index].base) / arrIndex;
}
return m_Indexes[index].appBase + arrIndex;
}
return -1;
}
GLint ProgramData::locationWARAppToHost(GLint appLoc)
{
if (!m_locShiftWAR) return appLoc;
for(GLuint i=0; i<m_numIndexes; i++) {
GLint elemIndex = appLoc - m_Indexes[i].appBase;
if (elemIndex >= 0 && elemIndex < m_Indexes[i].size) {
return m_Indexes[i].base +
elemIndex * m_Indexes[i].hostLocsPerElement;
}
}
return -1;
}
GLint ProgramData::getNextSamplerUniform(GLint index, GLint* val, GLenum* target)
{
for (GLint i = index + 1; i >= 0 && i < (GLint)m_numIndexes; i++) {
if (m_Indexes[i].type == GL_SAMPLER_2D) {
if (val) *val = m_Indexes[i].samplerValue;
if (target) {
if (m_Indexes[i].flags & INDEX_FLAG_SAMPLER_EXTERNAL) {
*target = GL_TEXTURE_EXTERNAL_OES;
} else {
*target = GL_TEXTURE_2D;
}
}
return i;
}
}
return -1;
}
bool ProgramData::setSamplerUniform(GLint appLoc, GLint val, GLenum* target)
{
for (GLuint i = 0; i < m_numIndexes; i++) {
GLint elemIndex = appLoc - m_Indexes[i].appBase;
if (elemIndex >= 0 && elemIndex < m_Indexes[i].size) {
if (m_Indexes[i].type == GL_TEXTURE_2D) {
m_Indexes[i].samplerValue = val;
if (target) {
if (m_Indexes[i].flags & INDEX_FLAG_SAMPLER_EXTERNAL) {
*target = GL_TEXTURE_EXTERNAL_OES;
} else {
*target = GL_TEXTURE_2D;
}
}
return true;
}
}
}
return false;
}
bool ProgramData::attachShader(GLuint shader)
{
size_t n = m_shaders.size();
for (size_t i = 0; i < n; i++) {
if (m_shaders[i] == shader) {
return false;
}
}
// AKA m_shaders.push_back(), but that has an ambiguous call to insertAt()
// due to the default parameters. This is the desired insertAt() overload.
m_shaders.insertAt(shader, m_shaders.size(), 1);
return true;
}
bool ProgramData::detachShader(GLuint shader)
{
size_t n = m_shaders.size();
for (size_t i = 0; i < n; i++) {
if (m_shaders[i] == shader) {
m_shaders.removeAt(i);
return true;
}
}
return false;
}
/***** GLSharedGroup ****/
GLSharedGroup::GLSharedGroup() :
m_buffers(android::DefaultKeyedVector<GLuint, BufferData*>(NULL)),
m_programs(android::DefaultKeyedVector<GLuint, ProgramData*>(NULL)),
m_shaders(android::DefaultKeyedVector<GLuint, ShaderData*>(NULL))
{
}
GLSharedGroup::~GLSharedGroup()
{
m_buffers.clear();
m_programs.clear();
}
BufferData * GLSharedGroup::getBufferData(GLuint bufferId)
{
android::AutoMutex _lock(m_lock);
return m_buffers.valueFor(bufferId);
}
void GLSharedGroup::addBufferData(GLuint bufferId, GLsizeiptr size, void * data)
{
android::AutoMutex _lock(m_lock);
m_buffers.add(bufferId, new BufferData(size, data));
}
void GLSharedGroup::updateBufferData(GLuint bufferId, GLsizeiptr size, void * data)
{
android::AutoMutex _lock(m_lock);
m_buffers.replaceValueFor(bufferId, new BufferData(size, data));
}
GLenum GLSharedGroup::subUpdateBufferData(GLuint bufferId, GLintptr offset, GLsizeiptr size, void * data)
{
android::AutoMutex _lock(m_lock);
BufferData * buf = m_buffers.valueFor(bufferId);
if ((!buf) || (buf->m_size < offset+size) || (offset < 0) || (size<0)) return GL_INVALID_VALUE;
//it's safe to update now
memcpy((char*)buf->m_fixedBuffer.ptr() + offset, data, size);
return GL_NO_ERROR;
}
void GLSharedGroup::deleteBufferData(GLuint bufferId)
{
android::AutoMutex _lock(m_lock);
m_buffers.removeItem(bufferId);
}
void GLSharedGroup::addProgramData(GLuint program)
{
android::AutoMutex _lock(m_lock);
ProgramData *pData = m_programs.valueFor(program);
if (pData)
{
m_programs.removeItem(program);
delete pData;
}
m_programs.add(program,new ProgramData());
}
void GLSharedGroup::initProgramData(GLuint program, GLuint numIndexes)
{
android::AutoMutex _lock(m_lock);
ProgramData *pData = m_programs.valueFor(program);
if (pData)
{
pData->initProgramData(numIndexes);
}
}
bool GLSharedGroup::isProgramInitialized(GLuint program)
{
android::AutoMutex _lock(m_lock);
ProgramData* pData = m_programs.valueFor(program);
if (pData)
{
return pData->isInitialized();
}
return false;
}
void GLSharedGroup::deleteProgramData(GLuint program)
{
android::AutoMutex _lock(m_lock);
ProgramData *pData = m_programs.valueFor(program);
if (pData)
delete pData;
m_programs.removeItem(program);
}
void GLSharedGroup::attachShader(GLuint program, GLuint shader)
{
android::AutoMutex _lock(m_lock);
ProgramData* programData = m_programs.valueFor(program);
ssize_t idx = m_shaders.indexOfKey(shader);
if (programData && idx >= 0) {
if (programData->attachShader(shader)) {
refShaderDataLocked(idx);
}
}
}
void GLSharedGroup::detachShader(GLuint program, GLuint shader)
{
android::AutoMutex _lock(m_lock);
ProgramData* programData = m_programs.valueFor(program);
ssize_t idx = m_shaders.indexOfKey(shader);
if (programData && idx >= 0) {
if (programData->detachShader(shader)) {
unrefShaderDataLocked(idx);
}
}
}
void GLSharedGroup::setProgramIndexInfo(GLuint program, GLuint index, GLint base, GLint size, GLenum type, const char* name)
{
android::AutoMutex _lock(m_lock);
ProgramData* pData = m_programs.valueFor(program);
if (pData)
{
pData->setIndexInfo(index,base,size,type);
if (type == GL_SAMPLER_2D) {
size_t n = pData->getNumShaders();
for (size_t i = 0; i < n; i++) {
GLuint shaderId = pData->getShader(i);
ShaderData* shader = m_shaders.valueFor(shaderId);
if (!shader) continue;
ShaderData::StringList::iterator nameIter = shader->samplerExternalNames.begin();
ShaderData::StringList::iterator nameEnd = shader->samplerExternalNames.end();
while (nameIter != nameEnd) {
if (*nameIter == name) {
pData->setIndexFlags(index, ProgramData::INDEX_FLAG_SAMPLER_EXTERNAL);
break;
}
++nameIter;
}
}
}
}
}
GLenum GLSharedGroup::getProgramUniformType(GLuint program, GLint location)
{
android::AutoMutex _lock(m_lock);
ProgramData* pData = m_programs.valueFor(program);
GLenum type=0;
if (pData)
{
type = pData->getTypeForLocation(location);
}
return type;
}
bool GLSharedGroup::isProgram(GLuint program)
{
android::AutoMutex _lock(m_lock);
ProgramData* pData = m_programs.valueFor(program);
return (pData!=NULL);
}
void GLSharedGroup::setupLocationShiftWAR(GLuint program)
{
android::AutoMutex _lock(m_lock);
ProgramData* pData = m_programs.valueFor(program);
if (pData) pData->setupLocationShiftWAR();
}
GLint GLSharedGroup::locationWARHostToApp(GLuint program, GLint hostLoc, GLint arrIndex)
{
android::AutoMutex _lock(m_lock);
ProgramData* pData = m_programs.valueFor(program);
if (pData) return pData->locationWARHostToApp(hostLoc, arrIndex);
else return hostLoc;
}
GLint GLSharedGroup::locationWARAppToHost(GLuint program, GLint appLoc)
{
android::AutoMutex _lock(m_lock);
ProgramData* pData = m_programs.valueFor(program);
if (pData) return pData->locationWARAppToHost(appLoc);
else return appLoc;
}
bool GLSharedGroup::needUniformLocationWAR(GLuint program)
{
android::AutoMutex _lock(m_lock);
ProgramData* pData = m_programs.valueFor(program);
if (pData) return pData->needUniformLocationWAR();
return false;
}
GLint GLSharedGroup::getNextSamplerUniform(GLuint program, GLint index, GLint* val, GLenum* target) const
{
android::AutoMutex _lock(m_lock);
ProgramData* pData = m_programs.valueFor(program);
return pData ? pData->getNextSamplerUniform(index, val, target) : -1;
}
bool GLSharedGroup::setSamplerUniform(GLuint program, GLint appLoc, GLint val, GLenum* target)
{
android::AutoMutex _lock(m_lock);
ProgramData* pData = m_programs.valueFor(program);
return pData ? pData->setSamplerUniform(appLoc, val, target) : false;
}
bool GLSharedGroup::addShaderData(GLuint shader)
{
android::AutoMutex _lock(m_lock);
ShaderData* data = new ShaderData;
if (data) {
if (m_shaders.add(shader, data) < 0) {
delete data;
data = NULL;
}
data->refcount = 1;
}
return data != NULL;
}
ShaderData* GLSharedGroup::getShaderData(GLuint shader)
{
android::AutoMutex _lock(m_lock);
return m_shaders.valueFor(shader);
}
void GLSharedGroup::unrefShaderData(GLuint shader)
{
android::AutoMutex _lock(m_lock);
ssize_t idx = m_shaders.indexOfKey(shader);
if (idx >= 0) {
unrefShaderDataLocked(idx);
}
}
void GLSharedGroup::refShaderDataLocked(ssize_t shaderIdx)
{
assert(shaderIdx >= 0 && shaderIdx <= m_shaders.size());
ShaderData* data = m_shaders.valueAt(shaderIdx);
data->refcount++;
}
void GLSharedGroup::unrefShaderDataLocked(ssize_t shaderIdx)
{
assert(shaderIdx >= 0 && shaderIdx <= m_shaders.size());
ShaderData* data = m_shaders.valueAt(shaderIdx);
if (--data->refcount == 0) {
delete data;
m_shaders.removeItemsAt(shaderIdx);
}
}