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Diffstat (limited to 'indra/llrender/llgl.cpp')
-rw-r--r--indra/llrender/llgl.cpp27
1 files changed, 26 insertions, 1 deletions
diff --git a/indra/llrender/llgl.cpp b/indra/llrender/llgl.cpp
index a3f7a946ec..97019d48c4 100644
--- a/indra/llrender/llgl.cpp
+++ b/indra/llrender/llgl.cpp
@@ -185,6 +185,9 @@ PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC glRenderbufferStorageMultisampleEXT =
// GL_EXT_framebuffer_blit
PFNGLBLITFRAMEBUFFEREXTPROC glBlitFramebufferEXT = NULL;
+// GL_EXT_blend_func_separate
+PFNGLBLENDFUNCSEPARATEEXTPROC glBlendFuncSeparateEXT = NULL;
+
// GL_ARB_draw_buffers
PFNGLDRAWBUFFERSARBPROC glDrawBuffersARB = NULL;
@@ -324,6 +327,7 @@ LLGLManager::LLGLManager() :
mHasCompressedTextures(FALSE),
mHasFramebufferObject(FALSE),
mHasFramebufferMultisample(FALSE),
+ mHasBlendFuncSeparate(FALSE),
mHasVertexBufferObject(FALSE),
mHasPBuffer(FALSE),
@@ -633,6 +637,11 @@ void LLGLManager::initExtensions()
#else
mHasDrawBuffers = FALSE;
# endif
+# if GL_EXT_blend_func_separate
+ mHasBlendFuncSeparate = TRUE;
+#else
+ mHasBlendFuncSeparate = FALSE;
+# endif
mHasMipMapGeneration = FALSE;
mHasSeparateSpecularColor = FALSE;
mHasAnisotropic = FALSE;
@@ -659,6 +668,7 @@ void LLGLManager::initExtensions()
&& ExtensionExists("GL_EXT_packed_depth_stencil", gGLHExts.mSysExts);
mHasFramebufferMultisample = mHasFramebufferObject && ExtensionExists("GL_EXT_framebuffer_multisample", gGLHExts.mSysExts);
mHasDrawBuffers = ExtensionExists("GL_ARB_draw_buffers", gGLHExts.mSysExts);
+ mHasBlendFuncSeparate = ExtensionExists("GL_EXT_blend_func_separate", gGLHExts.mSysExts);
mHasTextureRectangle = ExtensionExists("GL_ARB_texture_rectangle", gGLHExts.mSysExts);
#if !LL_DARWIN
mHasPointParameters = !mIsATI && ExtensionExists("GL_ARB_point_parameters", gGLHExts.mSysExts);
@@ -682,6 +692,7 @@ void LLGLManager::initExtensions()
mHasFramebufferObject = FALSE;
mHasFramebufferMultisample = FALSE;
mHasDrawBuffers = FALSE;
+ mHasBlendFuncSeparate = FALSE;
mHasMipMapGeneration = FALSE;
mHasSeparateSpecularColor = FALSE;
mHasAnisotropic = FALSE;
@@ -706,6 +717,7 @@ void LLGLManager::initExtensions()
mHasShaderObjects = FALSE;
mHasVertexShader = FALSE;
mHasFragmentShader = FALSE;
+ mHasBlendFuncSeparate = FALSE;
LL_WARNS("RenderInit") << "GL extension support forced to SIMPLE level via LL_GL_BASICEXT" << LL_ENDL;
}
if (getenv("LL_GL_BLACKLIST")) /* Flawfinder: ignore */
@@ -734,7 +746,8 @@ void LLGLManager::initExtensions()
if (strchr(blacklist,'r')) mHasDrawBuffers = FALSE;//S
if (strchr(blacklist,'s')) mHasFramebufferMultisample = FALSE;
if (strchr(blacklist,'t')) mHasTextureRectangle = FALSE;
-
+ if (strchr(blacklist,'u')) mHasBlendFuncSeparate = FALSE;//S
+
}
#endif // LL_LINUX || LL_SOLARIS
@@ -782,6 +795,14 @@ void LLGLManager::initExtensions()
{
LL_INFOS("RenderInit") << "Couldn't initialize GL_ARB_fragment_shader" << LL_ENDL;
}
+ if (!mHasBlendFuncSeparate)
+ {
+ LL_INFOS("RenderInit") << "Couldn't initialize GL_EXT_blend_func_separate" << LL_ENDL;
+ }
+ if (!mHasDrawBuffers)
+ {
+ LL_INFOS("RenderInit") << "Couldn't initialize GL_ARB_draw_buffers" << LL_ENDL;
+ }
// Disable certain things due to known bugs
if (mIsIntel && mHasMipMapGeneration)
@@ -852,6 +873,10 @@ void LLGLManager::initExtensions()
{
glDrawBuffersARB = (PFNGLDRAWBUFFERSARBPROC) GLH_EXT_GET_PROC_ADDRESS("glDrawBuffersARB");
}
+ if (mHasBlendFuncSeparate)
+ {
+ glBlendFuncSeparateEXT = (PFNGLBLENDFUNCSEPARATEEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glBlendFuncSeparateEXT");
+ }
#if (!LL_LINUX && !LL_SOLARIS) || LL_LINUX_NV_GL_HEADERS
// This is expected to be a static symbol on Linux GL implementations, except if we use the nvidia headers - bah
glDrawRangeElements = (PFNGLDRAWRANGEELEMENTSPROC)GLH_EXT_GET_PROC_ADDRESS("glDrawRangeElements");