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authorTofu Buzzard <no-email>2011-03-10 08:30:58 -0800
committerTofu Buzzard <no-email>2011-03-10 08:30:58 -0800
commit9108837ec7088378b99947aae784a7cded69b310 (patch)
tree8f9c0c1574623f015c86a744f07bfa8ebbbbed6b /indra/llrender
parent1dbdb9b97c1a177edc45e078af6bd0b9997e80bb (diff)
parentca610bfc82e9f150877efa7e8c4e972d47bce7d4 (diff)
merge
Diffstat (limited to 'indra/llrender')
-rw-r--r--indra/llrender/llgl.cpp10
-rw-r--r--indra/llrender/llgl.h1
2 files changed, 11 insertions, 0 deletions
diff --git a/indra/llrender/llgl.cpp b/indra/llrender/llgl.cpp
index 9354373dba..d1eb4c8be0 100644
--- a/indra/llrender/llgl.cpp
+++ b/indra/llrender/llgl.cpp
@@ -313,6 +313,7 @@ LLGLManager::LLGLManager() :
mIsDisabled(FALSE),
mHasMultitexture(FALSE),
+ mHasATIMemInfo(FALSE),
mNumTextureUnits(1),
mHasMipMapGeneration(FALSE),
mHasCompressedTextures(FALSE),
@@ -497,6 +498,14 @@ bool LLGLManager::initGL()
// This is called here because it depends on the setting of mIsGF2or4MX, and sets up mHasMultitexture.
initExtensions();
+ if (mHasATIMemInfo)
+ { //ask the gl how much vram is free at startup and attempt to use no more than half of that
+ S32 meminfo[4];
+ glGetIntegerv(GL_TEXTURE_FREE_MEMORY_ATI, meminfo);
+
+ mVRAM = meminfo[0]/1024;
+ }
+
if (mHasMultitexture)
{
GLint num_tex_units;
@@ -659,6 +668,7 @@ void LLGLManager::initExtensions()
mHasTextureRectangle = FALSE;
#else // LL_MESA_HEADLESS
mHasMultitexture = glh_init_extensions("GL_ARB_multitexture");
+ mHasATIMemInfo = ExtensionExists("GL_ATI_meminfo", gGLHExts.mSysExts);
mHasMipMapGeneration = glh_init_extensions("GL_SGIS_generate_mipmap");
mHasSeparateSpecularColor = glh_init_extensions("GL_EXT_separate_specular_color");
mHasAnisotropic = glh_init_extensions("GL_EXT_texture_filter_anisotropic");
diff --git a/indra/llrender/llgl.h b/indra/llrender/llgl.h
index df110613e3..f4be067f2e 100644
--- a/indra/llrender/llgl.h
+++ b/indra/llrender/llgl.h
@@ -76,6 +76,7 @@ public:
// Extensions used by everyone
BOOL mHasMultitexture;
+ BOOL mHasATIMemInfo;
S32 mNumTextureUnits;
BOOL mHasMipMapGeneration;
BOOL mHasCompressedTextures;