opengl/shared/OpenglCodecCommon/GLSharedGroup.cpp - device/generic/goldfish - Git at Google

 /*
 * 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);
     }
 }
	/*
	* 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);
	}
	}