removed legacy OpenGL context creation code.

This has been obsolete for 20 years and any driver not supporting the modern API needs to be considered broken by default by now.

source/common/platform/win32/win32glvideo.cpp

@@ -326,8 +326,7 @@ bool Win32GLVideo::SetupPixelFormat(int multisample)
 
 		if (!myWglChoosePixelFormatARB(m_hDC, attributes.data(), attribsFloat, 1, &pixelFormat, &numFormats))
 		{
-			Printf("R_OPENGL: Couldn't choose pixel format. Retrying in compatibility mode\n");
-			goto oldmethod;
+			I_FatalError("R_OPENGL: Couldn't choose pixel format. Retrying in compatibility mode\n");
 		}
 
 		if (vid_hdr && numFormats == 0) // This card/driver doesn't support the rgb16f pixel format. Fall back to 8bpc
@@ -343,8 +342,7 @@ bool Win32GLVideo::SetupPixelFormat(int multisample)
 
 			if (!myWglChoosePixelFormatARB(m_hDC, attributes.data(), attribsFloat, 1, &pixelFormat, &numFormats))
 			{
-				Printf("R_OPENGL: Couldn't choose pixel format. Retrying in compatibility mode\n");
-				goto oldmethod;
+				I_FatalError("R_OPENGL: Couldn't choose pixel format.");
 			}
 		}
 		else if (vid_hdr)
@@ -360,49 +358,13 @@ bool Win32GLVideo::SetupPixelFormat(int multisample)
 				vr_enable_quadbuffered = false;
 				goto again;
 			}
-			Printf("R_OPENGL: No valid pixel formats found. Retrying in compatibility mode\n");
-			goto oldmethod;
+			I_FatalError("R_OPENGL: No valid pixel formats found.");
 		}
 	}
 	else
 	{
-	oldmethod:
-		// If wglChoosePixelFormatARB is not found we have to do it the old fashioned way.
-		static PIXELFORMATDESCRIPTOR pfd = {
-			sizeof(PIXELFORMATDESCRIPTOR),
-			1,
-			PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
-			PFD_TYPE_RGBA,
-			32, // color depth
-			0, 0, 0, 0, 0, 0,
-			0,
-			0,
-			0,
-			0, 0, 0, 0,
-			32, // z depth
-			8, // stencil buffer
-			0,
-			PFD_MAIN_PLANE,
-			0,
-			0, 0, 0
-		};
-
-		pixelFormat = ChoosePixelFormat(m_hDC, &pfd);
-		DescribePixelFormat(m_hDC, pixelFormat, sizeof(pfd), &pfd);
-
-		if (pfd.dwFlags & PFD_GENERIC_FORMAT)
-		{
-			I_Error("R_OPENGL: OpenGL driver not accelerated!");
-			return false;
-		}
+		I_FatalError("R_OPENGL: Unable to create an OpenGL render context. Insufficient driver support for context creation\n");
 	}
-
-	if (!::SetPixelFormat(m_hDC, pixelFormat, NULL))
-	{
-		I_Error("R_OPENGL: Couldn't set pixel format.\n");
-		return false;
-	}
-	return true;
 }
 
 //==========================================================================
@@ -452,8 +414,7 @@ bool Win32GLVideo::InitHardware(HWND Window, int multisample)
 			m_hRC = zd_wglCreateContext(m_hDC);
 			if (m_hRC == NULL)
 			{
-				I_Error("R_OPENGL: Unable to create an OpenGL render context.\n");
-				return false;
+				I_FatalError("R_OPENGL: Unable to create an OpenGL render context.\n");
 			}
 		}
 
@@ -464,7 +425,7 @@ bool Win32GLVideo::InitHardware(HWND Window, int multisample)
 		}
 	}
 	// We get here if the driver doesn't support the modern context creation API which always means an old driver.
-	I_Error("R_OPENGL: Unable to create an OpenGL render context. Insufficient driver support for context creation\n");
+	I_FatalError("R_OPENGL: Unable to create an OpenGL render context. Insufficient driver support for context creation\n");
 	return false;
 }