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 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 GLSLSeparableProgram::loadIndividualProgram(GLSLShader *program)
{
if (program && !program->isLinked())
{
GLint linkStatus = 0;
String programName = program->getName();
GLuint programHandle = program->getGLProgramHandle();
OGRE_CHECK_GL_ERROR(glProgramParameteri(programHandle, GL_PROGRAM_SEPARABLE, GL_TRUE));
//if (GpuProgramManager::getSingleton().getSaveMicrocodesToCache())
OGRE_CHECK_GL_ERROR(glProgramParameteri(programHandle, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRUE));
// Use precompiled program if possible.
bool microcodeAvailableInCache = GpuProgramManager::getSingleton().isMicrocodeAvailableInCache(programName);
if (microcodeAvailableInCache)
{
GpuProgramManager::Microcode cacheMicrocode =
GpuProgramManager::getSingleton().getMicrocodeFromCache(programName);
cacheMicrocode->seek(0);
GLenum binaryFormat = 0;
cacheMicrocode->read(&binaryFormat, sizeof(GLenum));
GLint binaryLength = cacheMicrocode->size() - sizeof(GLenum);
OGRE_CHECK_GL_ERROR(glProgramBinary(programHandle,
binaryFormat,
cacheMicrocode->getPtr() + sizeof(GLenum),
binaryLength));
OGRE_CHECK_GL_ERROR(glGetProgramiv(programHandle, GL_LINK_STATUS, &linkStatus));
if (!linkStatus)
logObjectInfo("Could not use cached binary " + programName, programHandle);
}
// Compilation needed if precompiled program is
// unavailable or failed to link.
if (!linkStatus)
{
try
{
program->compile(true);
}
catch (Exception& e)
{
LogManager::getSingleton().stream() << e.getDescription();
mTriedToLinkAndFailed = true;
return;
}
program->attachToProgramObject(programHandle);
OGRE_CHECK_GL_ERROR(glLinkProgram(programHandle));
OGRE_CHECK_GL_ERROR(glGetProgramiv(programHandle, GL_LINK_STATUS, &linkStatus));
// Binary cache needs an update.
microcodeAvailableInCache = false;
}
program->setLinked(linkStatus);
mLinked = linkStatus;
mTriedToLinkAndFailed = !linkStatus;
logObjectInfo( getCombinedName() + String("GLSL program result : "), programHandle );
if (program->getType() == GPT_VERTEX_PROGRAM)
setSkeletalAnimationIncluded(program->isSkeletalAnimationIncluded());
// Add the microcode to the cache.
if (!microcodeAvailableInCache && mLinked &&
GpuProgramManager::getSingleton().getSaveMicrocodesToCache() )
{
// Get buffer size.
GLint binaryLength = 0;
OGRE_CHECK_GL_ERROR(glGetProgramiv(programHandle, GL_PROGRAM_BINARY_LENGTH, &binaryLength));
// Create microcode.
GpuProgramManager::Microcode newMicrocode =
GpuProgramManager::getSingleton().createMicrocode((unsigned long)binaryLength + sizeof(GLenum));
// Get binary.
OGRE_CHECK_GL_ERROR(glGetProgramBinary(programHandle, binaryLength, NULL, (GLenum *)newMicrocode->getPtr(), newMicrocode->getPtr() + sizeof(GLenum)));
// std::vector<uchar> buffer(binaryLength);
// GLenum format(0);
// OGRE_CHECK_GL_ERROR(glGetProgramBinary(programHandle, binaryLength, NULL, &format, &buffer[0]));
// GLenum binaryFormat = 0;
// std::vector<uchar> binaryData(binaryLength);
// newMicrocode->read(&binaryFormat, sizeof(GLenum));
// newMicrocode->read(&binaryData[0], binaryLength);
GpuProgramManager::getSingleton().addMicrocodeToCache(programName, newMicrocode);
}
}
}