Merge pull request #126 from Przemog1/barycentric

Added barycentric extensions

Author: devshgraphicsprogramming

include/nbl/builtin/glsl/barycentric/extensions.glsl

@@ -0,0 +1,14 @@
+// Copyright (C) 2018-2020 - DevSH Graphics Programming Sp. z O.O.
+// This file is part of the "Nabla Engine".
+// For conditions of distribution and use, see copyright notice in nabla.h
+
+#ifndef _NBL_BUILTIN_GLSL_EXTENSIONS_INCLUDED_
+#define _NBL_BUILTIN_GLSL_EXTENSIONS_INCLUDED_
+
+#ifdef NBL_GL_NV_fragment_shader_barycentric
+#extension GL_NV_fragment_shader_barycentric : enable
+#elif defined(NBL_GL_AMD_shader_explicit_vertex_parameter)
+#extension GL_AMD_shader_explicit_vertex_parameter : enable
+#endif
+
+#endif

source/Nabla/COpenGLExtensionHandler.cpp

@@ -844,8 +844,7 @@ void COpenGLExtensionHandler::initExtensions(bool stencilBuffer)
     float sl_ver;
     sscanf(reinterpret_cast<const char*>(shaderVersion),"%f",&sl_ver);
     ShaderLanguageVersion = static_cast<uint16_t>(core::round(sl_ver*100.0f));
-
-
+	
 	//! For EXT-DSA testing
 	if (IsIntelGPU)
 	{

src/nbl/builtin/CMakeLists.txt

@@ -34,6 +34,7 @@ set(nbl_resources_to_embed
   "nbl/builtin/glsl/macros.glsl"
   "nbl/builtin/glsl/algorithm.glsl"
   # barycentric
+  "nbl/builtin/glsl/barycentric/extensions.glsl"
   "nbl/builtin/glsl/barycentric/frag.glsl"
   "nbl/builtin/glsl/barycentric/vert.glsl"
   "nbl/builtin/glsl/barycentric/utils.glsl"

src/nbl/video/COpenGLShader.h

@@ -43,6 +43,14 @@ R"(
 #define NBL_GL_EXT_shader_explicit_arithmetic_types_int16
 #endif
 
+#ifdef NBL_IMPL_GL_AMD_shader_explicit_vertex_parameter
+#define NBL_GL_AMD_shader_explicit_vertex_parameter
+#endif
+
+#ifdef NBL_IMPL_GL_NV_fragment_shader_barycentric
+#define NBL_GL_NV_fragment_shader_barycentric
+#endif
+
 #ifdef NBL_IMPL_GL_NV_shader_thread_group
 #define NBL_GL_KHR_shader_subgroup_ballot_subgroup_mask
 #define NBL_GL_KHR_shader_subgroup_basic_subgroup_size