void GLSLProgram::getMicrocodeFromCache(uint32 id)
{
GpuProgramManager::Microcode cacheMicrocode =
GpuProgramManager::getSingleton().getMicrocodeFromCache(id);
cacheMicrocode->seek(0);
// Turns out we need this param when loading.
GLenum binaryFormat = 0;
cacheMicrocode->read(&binaryFormat, sizeof(GLenum));
// Get size of binary.
GLint binaryLength = static_cast<GLint>(cacheMicrocode->size() - sizeof(GLenum));
// Load binary.
OGRE_CHECK_GL_ERROR(glProgramBinary(mGLProgramHandle,
binaryFormat,
cacheMicrocode->getCurrentPtr(),
binaryLength));
GLint success = 0;
OGRE_CHECK_GL_ERROR(glGetProgramiv(mGLProgramHandle, GL_LINK_STATUS, &success));
if(success)
{
mLinked = true;
return;
}
logObjectInfo("could not load from cache "+getCombinedName(), mGLProgramHandle);
// Something must have changed since the program binaries
// were cached away. Fallback to source shader loading path,
// and then retrieve and cache new program binaries once again.
compileAndLink();
}
//-----------------------------------------------------------------------
void GLSLESLinkProgram::activate(void)
{
if (!mLinked && !mTriedToLinkAndFailed)
{
glGetError(); // Clean up the error. Otherwise will flood log.
mGLHandle = glCreateProgram();
GL_CHECK_ERROR
if ( GpuProgramManager::getSingleton().canGetCompiledShaderBuffer() &&
GpuProgramManager::getSingleton().isMicrocodeAvailableInCache(getCombinedName()) )
{
getMicrocodeFromCache();
}
else
{
#ifdef OGRE_USE_GLES2_GLSL_OPTIMISER
// check CmdParams for each shader type to see if we should optimize
String paramStr = mVertexProgram->getGLSLProgram()->getParameter("use_optimiser");
if((paramStr == "true") || paramStr.empty())
{
GLSLESLinkProgramManager::getSingleton().optimiseShaderSource(mVertexProgram);
}
paramStr = mFragmentProgram->getGLSLProgram()->getParameter("use_optimiser");
if((paramStr == "true") || paramStr.empty())
{
GLSLESLinkProgramManager::getSingleton().optimiseShaderSource(mFragmentProgram);
}
#endif
compileAndLink();
}
buildGLUniformReferences();
}
//-----------------------------------------------------------------------
void GLSLESProgramPipeline::activate(void)
{
if (!mLinked && !mTriedToLinkAndFailed)
{
glGetError(); // Clean up the error. Otherwise will flood log.
#if !OGRE_NO_GLES2_GLSL_OPTIMISER
// Check CmdParams for each shader type to see if we should optimise
if(mVertexProgram)
{
String paramStr = mVertexProgram->getGLSLProgram()->getParameter("use_optimiser");
if((paramStr == "true") || paramStr.empty())
{
GLSLESProgramPipelineManager::getSingleton().optimiseShaderSource(mVertexProgram);
}
}
if(mFragmentProgram)
{
String paramStr = mFragmentProgram->getGLSLProgram()->getParameter("use_optimiser");
if((paramStr == "true") || paramStr.empty())
{
GLSLESProgramPipelineManager::getSingleton().optimiseShaderSource(mFragmentProgram);
}
}
#endif
compileAndLink();
extractLayoutQualifiers();
buildGLUniformReferences();
}
_useProgram();
}
bool ShadowMapping::init()
{
if(!this->initGlew() || !this->initSetup())
return false;
return compileAndLink(
this->_shadowMappingProgram,
this->_shadowMappingVert,
this->_shadowMappingFrag,
PluginManager::getBaseDirPath().append(QString("/shaders/decorate_shadow/sm/object")));
}
bool SSAO::init()
{
if(!this->initGlew() || !this->initSetup())
return false;
if(!compileAndLink(
this->_ssaoShaderProgram,
this->_ssaoVert,
this->_ssaoFrag,
PluginManager::getBaseDirPath().append(QString("/shaders/decorate_shadow/ssao/ssao"))) ||
!compileAndLink(
this->_normalMapShaderProgram,
this->_normalMapVert,
this->_normalMapFrag,
PluginManager::getBaseDirPath().append(QString("/shaders/decorate_shadow/ssao/normalMap"))) ||
!compileAndLink(
this->_blurShaderProgram,
this->_blurVert,
this->_blurFrag,
PluginManager::getBaseDirPath().append(QString("/shaders/decorate_shadow/ssao/blur"))))
return false;
return true;
}
void GLSLSeparableProgram::activate(void)
{
if (!mLinked && !mTriedToLinkAndFailed)
{
compileAndLink();
extractLayoutQualifiers();
buildGLUniformReferences();
}
// _useProgram();
if (mLinked)
{
OGRE_CHECK_GL_ERROR(glBindProgramPipeline(mGLProgramPipelineHandle));
}
}
//-----------------------------------------------------------------------
void GLSLProgramPipeline::activate(void)
{
if (!mLinked && !mTriedToLinkAndFailed)
{
if ( GpuProgramManager::getSingleton().canGetCompiledShaderBuffer() &&
GpuProgramManager::getSingleton().isMicrocodeAvailableInCache(getCombinedName()) )
{
getMicrocodeFromCache();
}
else
{
compileAndLink();
}
extractLayoutQualifiers();
buildGLUniformReferences();
}
_useProgram();
}
//-----------------------------------------------------------------------
void GLSLESProgramCommon::getMicrocodeFromCache(void)
{
GpuProgramManager::Microcode cacheMicrocode =
GpuProgramManager::getSingleton().getMicrocodeFromCache(getCombinedName());
// add to the microcode to the cache
String name;
name = getCombinedName();
// turns out we need this param when loading
GLenum binaryFormat = 0;
cacheMicrocode->seek(0);
// get size of binary
cacheMicrocode->read(&binaryFormat, sizeof(GLenum));
if(getGLES2SupportRef()->checkExtension("GL_OES_get_program_binary") || gleswIsSupported(3, 0))
{
GLint binaryLength = static_cast<GLint>(cacheMicrocode->size() - sizeof(GLenum));
// load binary
OGRE_CHECK_GL_ERROR(glProgramBinaryOES(mGLProgramHandle,
binaryFormat,
cacheMicrocode->getPtr(),
binaryLength));
}
GLint success = 0;
OGRE_CHECK_GL_ERROR(glGetProgramiv(mGLProgramHandle, GL_LINK_STATUS, &success));
if (!success)
{
//
// Something must have changed since the program binaries
// were cached away. Fallback to source shader loading path,
// and then retrieve and cache new program binaries once again.
//
compileAndLink();
}
}
void Shader::loadShader(const std::string &vertexShader, const std::string &fragmentShader) {
const char *vs = textFileRead(vertexShader.c_str());
const char *fs = textFileRead(fragmentShader.c_str());
compileAndLink(vs,fs);
}
