diff options
Diffstat (limited to 'vcl/source/opengl/OpenGLHelper.cxx')
-rw-r--r-- | vcl/source/opengl/OpenGLHelper.cxx | 267 |
1 files changed, 262 insertions, 5 deletions
diff --git a/vcl/source/opengl/OpenGLHelper.cxx b/vcl/source/opengl/OpenGLHelper.cxx index 0e0e10cd8bd0..4b7b21ec2638 100644 --- a/vcl/source/opengl/OpenGLHelper.cxx +++ b/vcl/source/opengl/OpenGLHelper.cxx @@ -12,6 +12,9 @@ #include <osl/file.hxx> #include <rtl/bootstrap.hxx> +#include <rtl/digest.h> +#include <rtl/strbuf.hxx> +#include <rtl/ustring.hxx> #include <config_folders.h> #include <vcl/salbtype.hxx> #include <vcl/bmpacc.hxx> @@ -25,6 +28,8 @@ #include <stdarg.h> #include <vector> +#include <deque> +#include <unordered_map> #include "svdata.hxx" @@ -47,6 +52,8 @@ sal_uInt64 volatile OpenGLZone::gnLeaveCount = 0; namespace { +using namespace rtl; + OUString getShaderFolder() { OUString aUrl("$BRAND_BASE_DIR/" LIBO_ETC_FOLDER); @@ -143,12 +150,247 @@ static void addPreamble(OString& rShaderSource, const OString& rPreamble) } } -GLint OpenGLHelper::LoadShaders(const OUString& rVertexShaderName,const OUString& rFragmentShaderName, const OString& preamble) +namespace +{ + static const sal_uInt32 GLenumSize = sizeof(GLenum); + + OString getHexString(const sal_uInt8* pData, sal_uInt32 nLength) + { + static const char* pHexData = "0123456789ABCDEF"; + + bool bIsZero = true; + OStringBuffer aHexStr; + for(size_t i = 0; i < nLength; ++i) + { + sal_uInt8 val = pData[i]; + if( val != 0 ) + bIsZero = false; + aHexStr.append( pHexData[ val & 0xf ] ); + aHexStr.append( pHexData[ val >> 4 ] ); + } + if( bIsZero ) + return OString(); + else + return aHexStr.makeStringAndClear(); + } + + OString generateMD5(const void* pData, size_t length) + { + sal_uInt8 pBuffer[RTL_DIGEST_LENGTH_MD5]; + rtlDigestError aError = rtl_digest_MD5(pData, length, + pBuffer, RTL_DIGEST_LENGTH_MD5); + SAL_WARN_IF(aError != rtl_Digest_E_None, "vcl.opengl", "md5 generation failed"); + + return getHexString(pBuffer, RTL_DIGEST_LENGTH_MD5); + } + + OString getStringDigest( const OUString& rVertexShaderName, + const OUString& rFragmentShaderName, + const OString& rPreamble ) + { + // read shaders source + OString aVertexShaderSource = loadShader( rVertexShaderName ); + OString aFragmentShaderSource = loadShader( rFragmentShaderName ); + + // get info about the graphic device +#if defined( SAL_UNX ) && !defined( MACOSX ) && !defined( IOS )&& !defined( ANDROID ) + static const X11OpenGLDeviceInfo aInfo; + static const OString aDeviceInfo ( + aInfo.GetOS() + + aInfo.GetOSRelease() + + aInfo.GetRenderer() + + aInfo.GetVendor() + + aInfo.GetVersion() ); +#elif defined( _WIN32 ) + static const WinOpenGLDeviceInfo aInfo; + static const OString aDeviceInfo ( + OUStringToOString( aInfo.GetAdapterVendorID(), RTL_TEXTENCODING_UTF8 ) + + OUStringToOString( aInfo.GetAdapterDeviceID(), RTL_TEXTENCODING_UTF8 ) + + OUStringToOString( aInfo.GetDriverVersion(), RTL_TEXTENCODING_UTF8 ) + + OString::number( aInfo.GetWindowsVersion() ) ); +#else + static const OString aDeviceInfo ( + OString( (const char*)(glGetString(GL_VENDOR)) ) + + OString( (const char*)(glGetString(GL_RENDERER)) ) + + OString( (const char*)(glGetString(GL_VERSION)) ) ); +#endif + + OString aMessage; + aMessage += rPreamble; + aMessage += aVertexShaderSource; + aMessage += aFragmentShaderSource; + aMessage += aDeviceInfo; + + return generateMD5(aMessage.getStr(), aMessage.getLength()); + } + + OString getCacheFolder() + { + OUString url("${$BRAND_BASE_DIR/" LIBO_ETC_FOLDER "/" SAL_CONFIGFILE("bootstrap") ":UserInstallation}/cache/"); + rtl::Bootstrap::expandMacros(url); + + osl::Directory::create(url); + + return rtl::OUStringToOString(url, RTL_TEXTENCODING_UTF8); + } + + + bool writeProgramBinary( const OString& rBinaryFileName, + const std::vector<sal_uInt8>& rBinary ) + { + osl::File aFile(rtl::OStringToOUString(rBinaryFileName, RTL_TEXTENCODING_UTF8)); + osl::FileBase::RC eStatus = aFile.open( + osl_File_OpenFlag_Write | osl_File_OpenFlag_Create ); + + if( eStatus != osl::FileBase::E_None ) + { + // when file already exists we do not have to save it: + // we can be sure that the binary to save is exactly equal + // to the already saved binary, since they have the same hash value + if( eStatus == osl::FileBase::E_EXIST ) + { + SAL_WARN( "vcl.opengl", + "No binary program saved. A file with the same hash already exists: '" << rBinaryFileName << "'" ); + return true; + } + return false; + } + + sal_uInt64 nBytesWritten = 0; + aFile.write( rBinary.data(), rBinary.size(), nBytesWritten ); + + assert( rBinary.size() == nBytesWritten ); + + return true; + } + + bool readProgramBinary( const OString& rBinaryFileName, + std::vector<sal_uInt8>& rBinary ) + { + osl::File aFile( rtl::OStringToOUString( rBinaryFileName, RTL_TEXTENCODING_UTF8 ) ); + if(aFile.open( osl_File_OpenFlag_Read ) == osl::FileBase::E_None) + { + sal_uInt64 nSize = 0; + aFile.getSize( nSize ); + rBinary.resize( nSize ); + sal_uInt64 nBytesRead = 0; + aFile.read( rBinary.data(), nSize, nBytesRead ); + assert( nSize == nBytesRead ); + SAL_WARN("vcl.opengl", "Loading file: '" << rBinaryFileName << "': success" ); + return true; + } + else + { + SAL_WARN("vcl.opengl", "Loading file: '" << rBinaryFileName << "': FAIL"); + } + + return false; + } + + OString createFileName( const OUString& rVertexShaderName, + const OUString& rFragmentShaderName, + const OString& rDigest ) + { + OString aFileName; + aFileName += getCacheFolder(); + aFileName += rtl::OUStringToOString( rVertexShaderName, RTL_TEXTENCODING_UTF8 ) + "-"; + aFileName += rtl::OUStringToOString( rFragmentShaderName, RTL_TEXTENCODING_UTF8 ) + "-"; + aFileName += rDigest + ".bin"; + return aFileName; + } + + GLint loadProgramBinary( GLuint nProgramID, const OString& rBinaryFileName ) + { + GLint nResult = GL_FALSE; + GLenum nBinaryFormat; + std::vector<sal_uInt8> aBinary; + if( readProgramBinary( rBinaryFileName, aBinary ) && aBinary.size() > GLenumSize ) + { + GLint nBinaryLength = aBinary.size() - GLenumSize; + + // Extract binary format + sal_uInt8* pBF = (sal_uInt8*)(&nBinaryFormat); + for( size_t i = 0; i < GLenumSize; ++i ) + { + pBF[i] = aBinary[nBinaryLength + i]; + } + + // Load the program + glProgramBinary( nProgramID, nBinaryFormat, (void*)(aBinary.data()), nBinaryLength ); + + // Check the program + glGetProgramiv(nProgramID, GL_LINK_STATUS, &nResult); + } + return nResult; + } + + void saveProgramBinary( GLint nProgramID, const OString& rBinaryFileName ) + { + GLint nBinaryLength = 0; + GLenum nBinaryFormat = GL_NONE; + + glGetProgramiv( nProgramID, GL_PROGRAM_BINARY_LENGTH, &nBinaryLength ); + if( !( nBinaryLength > 0 ) ) + { + SAL_WARN( "vcl.opengl", "Binary size is zero" ); + return; + } + + std::vector<sal_uInt8> aBinary( nBinaryLength + GLenumSize ); + + glGetProgramBinary( nProgramID, nBinaryLength, NULL, &nBinaryFormat, (void*)(aBinary.data()) ); + + const sal_uInt8* pBF = (const sal_uInt8*)(&nBinaryFormat); + aBinary.insert( aBinary.end(), pBF, pBF + GLenumSize ); + + SAL_INFO("vcl.opengl", "Program id: " << nProgramID ); + SAL_INFO("vcl.opengl", "Binary length: " << nBinaryLength ); + SAL_INFO("vcl.opengl", "Binary format: " << nBinaryFormat ); + + if( !writeProgramBinary( rBinaryFileName, aBinary ) ) + SAL_WARN("vcl.opengl", "Writing binary file '" << rBinaryFileName << "': FAIL"); + else + SAL_WARN("vcl.opengl", "Writing binary file '" << rBinaryFileName << "': success"); + } +} + +rtl::OString OpenGLHelper::GetDigest( const OUString& rVertexShaderName, + const OUString& rFragmentShaderName, + const OString& rPreamble ) +{ + return getStringDigest(rVertexShaderName, rFragmentShaderName, rPreamble); +} + +GLint OpenGLHelper::LoadShaders(const OUString& rVertexShaderName, + const OUString& rFragmentShaderName, + const OString& preamble, + const OString& rDigest) { OpenGLZone aZone; gbInShaderCompile = true; + // create the program object + GLint ProgramID = glCreateProgram(); + + // read shaders from file + OString aVertexShaderSource = loadShader(rVertexShaderName); + OString aFragmentShaderSource = loadShader(rFragmentShaderName); + + + GLint BinaryResult = GL_FALSE; + if( GLEW_ARB_get_program_binary && !rDigest.isEmpty() ) + { + OString aFileName = + createFileName(rVertexShaderName, rFragmentShaderName, rDigest); + BinaryResult = loadProgramBinary(ProgramID, aFileName); + CHECK_GL_ERROR(); + } + + if( BinaryResult != GL_FALSE ) + return ProgramID; + + VCL_GL_INFO("vcl.opengl", "Load shader: vertex " << rVertexShaderName << " fragment " << rFragmentShaderName); // Create the shaders GLuint VertexShaderID = glCreateShader(GL_VERTEX_SHADER); @@ -157,7 +399,6 @@ GLint OpenGLHelper::LoadShaders(const OUString& rVertexShaderName,const OUString GLint Result = GL_FALSE; // Compile Vertex Shader - OString aVertexShaderSource = loadShader(rVertexShaderName); if( !preamble.isEmpty()) addPreamble( aVertexShaderSource, preamble ); char const * VertexSourcePointer = aVertexShaderSource.getStr(); @@ -171,7 +412,6 @@ GLint OpenGLHelper::LoadShaders(const OUString& rVertexShaderName,const OUString rVertexShaderName, true); // Compile Fragment Shader - OString aFragmentShaderSource = loadShader(rFragmentShaderName); if( !preamble.isEmpty()) addPreamble( aFragmentShaderSource, preamble ); char const * FragmentSourcePointer = aFragmentShaderSource.getStr(); @@ -185,10 +425,27 @@ GLint OpenGLHelper::LoadShaders(const OUString& rVertexShaderName,const OUString rFragmentShaderName, true); // Link the program - GLint ProgramID = glCreateProgram(); glAttachShader(ProgramID, VertexShaderID); glAttachShader(ProgramID, FragmentShaderID); - glLinkProgram(ProgramID); + + if( GLEW_ARB_get_program_binary && !rDigest.isEmpty() ) + { + glProgramParameteri(ProgramID, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRUE); + glLinkProgram(ProgramID); + glGetProgramiv(ProgramID, GL_LINK_STATUS, &Result); + if (!Result) + { + SAL_WARN("vcl.opengl", "linking failed: " << Result ); + return LogCompilerError(ProgramID, "program", "<both>", false); + } + OString aFileName = + createFileName(rVertexShaderName, rFragmentShaderName, rDigest); + saveProgramBinary(ProgramID, aFileName); + } + else + { + glLinkProgram(ProgramID); + } glDeleteShader(VertexShaderID); glDeleteShader(FragmentShaderID); |