From 40b8ef2607621897edc7eb038e63ad57ae24059a Mon Sep 17 00:00:00 2001
From: Rye Mutt <rye@alchemyviewer.org>
Date: Wed, 14 Jul 2021 11:19:01 -0400
Subject: [PATCH] Check for ARB_clip_control extension support
---
indra/llrender/llgl.cpp | 6 +++++-
indra/llrender/llgl.h | 5 +++--
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/indra/llrender/llgl.cpp b/indra/llrender/llgl.cpp
index 631cfff2b0d..38dc95f044d 100644
--- a/indra/llrender/llgl.cpp
+++ b/indra/llrender/llgl.cpp
@@ -182,6 +182,7 @@ LLGLManager::LLGLManager() :
mHasTextureSwizzle(false),
mHasGPUShader4(false),
+ mHasClipControl(false),
mIsATI(FALSE),
mIsNVIDIA(FALSE),
mIsIntel(FALSE),
@@ -745,7 +746,8 @@ void LLGLManager::asLLSD(LLSD& info)
info["has_srgb_texture"] = mHassRGBTexture;
info["has_srgb_framebuffer"] = mHassRGBFramebuffer;
info["has_texture_srgb_decode"] = mHasTexturesRGBDecode;
- info["has_gpu_shader_4"] = mHasGPUShader4;
+ info["has_gpu_shader4"] = mHasGPUShader4;
+ info["has_clip_control"] = mHasClipControl;
// Vendor-specific extensions
info["is_ati"] = mIsATI;
@@ -894,6 +896,7 @@ void LLGLManager::initExtensions()
mHasTextureSwizzle = mGLVersion >= 3.3f || epoxy_has_gl_extension("GL_ARB_texture_swizzle");
mHasGPUShader4 = mGLVersion >= 3.0f || epoxy_has_gl_extension("GL_EXT_gpu_shader4");
+ mHasClipControl = mGLVersion >= 4.5 || epoxy_has_gl_extension("GL_ARB_clip_control");
#endif
#if LL_LINUX
@@ -921,6 +924,7 @@ void LLGLManager::initExtensions()
mHasFragmentShader = FALSE;
mHasTextureSwizzle = FALSE;
mHasGPUShader4 = FALSE;
+ mHasClipControl = FALSE;
LL_WARNS("RenderInit") << "GL extension support DISABLED via LL_GL_NOEXT" << LL_ENDL;
}
else if (getenv("LL_GL_BASICEXT")) /* Flawfinder: ignore */
diff --git a/indra/llrender/llgl.h b/indra/llrender/llgl.h
index 5043627e2a8..5aba19aafb5 100644
--- a/indra/llrender/llgl.h
+++ b/indra/llrender/llgl.h
@@ -129,8 +129,9 @@ class LLGLManager
BOOL mHassRGBTexture;
BOOL mHassRGBFramebuffer;
BOOL mHasTexturesRGBDecode;
- bool mHasTextureSwizzle;
- bool mHasGPUShader4;
+ bool mHasTextureSwizzle = false;
+ bool mHasGPUShader4 = false;
+ bool mHasClipControl = false;
// Vendor-specific extensions
BOOL mIsATI;
--
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