diff options
| author | Tor Lillqvist <tml@collabora.com> | 2015-10-08 13:24:12 +0300 |
|---|---|---|
| committer | Tor Lillqvist <tml@collabora.com> | 2015-10-08 13:43:17 +0300 |
| commit | b69e55bdb2544f3fcc492d535a77ff17022ed6d5 (patch) | |
| tree | 32e01348aa28d569a035a2646e32ea5a403e8ea9 /vcl | |
| parent | 2bd7a569720fdd6b808e6076ce7c8ded1cb6a5a7 (diff) | |
Don't re-read the same glsl files over and over again
Change-Id: I10b4badaba01630e1a054b3d4d9cc4720822511a
Diffstat (limited to 'vcl')
| -rw-r--r-- | vcl/source/opengl/OpenGLHelper.cxx | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/vcl/source/opengl/OpenGLHelper.cxx b/vcl/source/opengl/OpenGLHelper.cxx index 92bfe7db5b77..5290f8c2445e 100644 --- a/vcl/source/opengl/OpenGLHelper.cxx +++ b/vcl/source/opengl/OpenGLHelper.cxx @@ -11,6 +11,7 @@ #include <vcl/opengl/OpenGLHelper.hxx> #include <osl/file.hxx> +#include <osl/mutex.hxx> #include <rtl/bootstrap.hxx> #include <rtl/digest.h> #include <rtl/strbuf.hxx> @@ -66,6 +67,7 @@ OString loadShader(const OUString& rFilename) { OUString aFileURL = getShaderFolder() + rFilename +".glsl"; osl::File aFile(aFileURL); + SAL_INFO("vcl.opengl", "Reading " << aFileURL); if(aFile.open(osl_File_OpenFlag_Read) == osl::FileBase::E_None) { sal_uInt64 nSize = 0; @@ -85,6 +87,20 @@ OString loadShader(const OUString& rFilename) return OString(); } +OString& getShaderSource(const OUString& rFilename) +{ + static std::unordered_map<OUString, OString, OUStringHash> aMap; + static osl::Mutex aMutex; + osl::MutexGuard aGuard(aMutex); + + if (aMap.find(rFilename) == aMap.end()) + { + aMap[rFilename] = loadShader(rFilename); + } + + return aMap[rFilename]; +} + } namespace { @@ -189,8 +205,8 @@ namespace const OString& rPreamble ) { // read shaders source - OString aVertexShaderSource = loadShader( rVertexShaderName ); - OString aFragmentShaderSource = loadShader( rFragmentShaderName ); + OString aVertexShaderSource = getShaderSource( rVertexShaderName ); + OString aFragmentShaderSource = getShaderSource( rFragmentShaderName ); // get info about the graphic device #if defined( SAL_UNX ) && !defined( MACOSX ) && !defined( IOS )&& !defined( ANDROID ) @@ -374,8 +390,8 @@ GLint OpenGLHelper::LoadShaders(const OUString& rVertexShaderName, GLint ProgramID = glCreateProgram(); // read shaders from file - OString aVertexShaderSource = loadShader(rVertexShaderName); - OString aFragmentShaderSource = loadShader(rFragmentShaderName); + OString aVertexShaderSource = getShaderSource(rVertexShaderName); + OString aFragmentShaderSource = getShaderSource(rFragmentShaderName); GLint bBinaryResult = GL_FALSE; if( GLEW_ARB_get_program_binary && !rDigest.isEmpty() ) |