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| author | Markus Mohrhard <markus.mohrhard@collabora.co.uk> | 2014-02-18 23:33:38 +0100 |
|---|---|---|
| committer | Markus Mohrhard <markus.mohrhard@googlemail.com> | 2014-02-19 00:27:06 +0100 |
| commit | 54e66cba3b7691ce4acf7fac947241058faf0fc3 (patch) | |
| tree | caa70fc9a7ef8ff9d21dc64621ac2a3f346dd1d3 /chart2 | |
| parent | cdb405f4e4b168d1e2f6dea9ac985df319a76015 (diff) | |
avoid calling glew repeatedly
This saves us about 10% of the rendering time.
Change-Id: I3ea7f1849500b025830b44c5175d79ad04aff362
Diffstat (limited to 'chart2')
| -rwxr-xr-x | chart2/source/view/main/OpenGLRender.cxx | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/chart2/source/view/main/OpenGLRender.cxx b/chart2/source/view/main/OpenGLRender.cxx index 83d68bd57414..9b4cd8d6fe85 100755 --- a/chart2/source/view/main/OpenGLRender.cxx +++ b/chart2/source/view/main/OpenGLRender.cxx @@ -84,6 +84,7 @@ int static checkGLError(const char *file, int line) return retCode; } +static bool bGlewInit = false; #define CHECK_GL_ERROR() checkGLError(__FILE__, __LINE__) @@ -235,11 +236,16 @@ GLfloat texCoords[] = { int OpenGLRender::InitOpenGL(GLWindow aWindow) { glWin = aWindow; - glewExperimental = GL_TRUE; - if (glewInit() != GLEW_OK) + if(!bGlewInit) { - SAL_WARN("chart2.opengl", "Failed to initialize GLEW"); - return -1; + glewExperimental = GL_TRUE; + if (glewInit() != GLEW_OK) + { + SAL_WARN("chart2.opengl", "Failed to initialize GLEW"); + return -1; + } + else + bGlewInit = true; } // These guys don't just check support but setup the vtables. |