Merge pull request #21387 from hpvb/fix-15324

Fall back to GLES2 if GLES3 is not working

1 files changed, 0 insertions, 7 deletions

diff --git a/platform/windows/context_gl_win.cpp b/platform/windows/context_gl_win.cpp
index 59435b04ea..794f6df31f 100644
--- a/platform/windows/context_gl_win.cpp
+++ b/platform/windows/context_gl_win.cpp
@@ -108,28 +108,24 @@ Error ContextGL_Win::initialize() {
 
 	hDC = GetDC(hWnd);
 	if (!hDC) {
-		MessageBox(NULL, "Can't Create A GL Device Context.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
 		return ERR_CANT_CREATE; // Return FALSE
 	}
 
 	pixel_format = ChoosePixelFormat(hDC, &pfd);
 	if (!pixel_format) // Did Windows Find A Matching Pixel Format?
 	{
-		MessageBox(NULL, "Can't Find A Suitable pixel_format.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
 		return ERR_CANT_CREATE; // Return FALSE
 	}
 
 	BOOL ret = SetPixelFormat(hDC, pixel_format, &pfd);
 	if (!ret) // Are We Able To Set The Pixel Format?
 	{
-		MessageBox(NULL, "Can't Set The pixel_format.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
 		return ERR_CANT_CREATE; // Return FALSE
 	}
 
 	hRC = wglCreateContext(hDC);
 	if (!hRC) // Are We Able To Get A Rendering Context?
 	{
-		MessageBox(NULL, "Can't Create A Temporary GL Rendering Context.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
 		return ERR_CANT_CREATE; // Return FALSE
 	}
 
@@ -151,7 +147,6 @@ Error ContextGL_Win::initialize() {
 
 		if (wglCreateContextAttribsARB == NULL) //OpenGL 3.0 is not supported
 		{
-			MessageBox(NULL, "Cannot get Proc Address for CreateContextAttribs", "ERROR", MB_OK | MB_ICONEXCLAMATION);
 			wglDeleteContext(hRC);
 			return ERR_CANT_CREATE;
 		}
@@ -159,7 +154,6 @@ Error ContextGL_Win::initialize() {
 		HGLRC new_hRC = wglCreateContextAttribsARB(hDC, 0, attribs);
 		if (!new_hRC) {
 			wglDeleteContext(hRC);
-			MessageBox(NULL, "Can't Create An OpenGL 3.3 Rendering Context.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
 			return ERR_CANT_CREATE; // Return false
 		}
 		wglMakeCurrent(hDC, NULL);
@@ -168,7 +162,6 @@ Error ContextGL_Win::initialize() {
 
 		if (!wglMakeCurrent(hDC, hRC)) // Try To Activate The Rendering Context
 		{
-			MessageBox(NULL, "Can't Activate The GL 3.3 Rendering Context.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
 			return ERR_CANT_CREATE; // Return FALSE
 		}
 	}