ADDED: GL_SHADING_LANGUAGE_VERSION for swGetString()

Author: raysan5

src/external/rlsw.h

@@ -213,6 +213,7 @@ typedef double              GLclampd;
 #define GL_RENDERER                         0x1F01
 #define GL_VERSION                          0x1F02
 #define GL_EXTENSIONS                       0x1F03
+#define GL_SHADING_LANGUAGE_VERSION         0x8B8C
 
 //#define GL_ATTRIB_STACK_DEPTH             0x0BB0
 //#define GL_CLIENT_ATTRIB_STACK_DEPTH      0x0BB1
@@ -520,6 +521,7 @@ typedef enum {
     SW_RENDERER = GL_RENDERER,
     SW_VERSION = GL_VERSION,
     SW_EXTENSIONS = GL_EXTENSIONS,
+    SW_SHADING_LANGUAGE_VERSION = GL_SHADING_LANGUAGE_VERSION,
     SW_COLOR_CLEAR_VALUE = GL_COLOR_CLEAR_VALUE,
     SW_DEPTH_CLEAR_VALUE = GL_DEPTH_CLEAR_VALUE,
     SW_CURRENT_COLOR = GL_CURRENT_COLOR,
@@ -4279,6 +4281,7 @@ const char *swGetString(SWget name)
         case SW_RENDERER: result = "RLSW OpenGL Software Renderer"; break;
         case SW_VERSION: result = RLSW_VERSION; break;
         case SW_EXTENSIONS: result = "None"; break;
+        case SW_SHADING_LANGUAGE_VERSION: result = "Not supported"; break;
         default: RLSW.errCode = SW_INVALID_ENUM; break;
     }
 
@@ -5565,11 +5568,8 @@ static void SW_RASTER_TRIANGLE(const sw_vertex_t *v0, const sw_vertex_t *v1, con
 
     // Extracting coordinates from the sorted vertices
     // Put x away for safe keeping.  Only y is used right now.  Silences warnings.
-    //float x0 = v0->position[0];
     float y0 = v0->position[1];
-    //float x1 = v1->position[0];
     float y1 = v1->position[1];
-    //float x2 = v2->position[0];
     float y2 = v2->position[1];
 
     // Compute height differences