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Bug 3081

Summary: CMake configuration auto-disables OpenGL ES support on Windows
Product: SDL Reporter: Alex Szpakowski <amaranth72>
Component: buildAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2 CC: EntranceJew, mark
Version: HG 2.0   
Hardware: x86_64   
OS: Windows (All)   
Attachments: Adds the if(VIDEO_OPENGLES) section to the if(WINDOWS) block.

Description Alex Szpakowski 2015-07-30 00:13:10 UTC 
When SDL's CMake file is used on Windows, it sets the VIDEO_OPENGLES option to OFF even when ON is requested (which is the default.) As a result, SDL can't use OpenGL ES - including ANGLE - on Windows if it was built using its CMakeLists.txt file, since the necessary codepaths (e.g. all of SDL_windowsopengles.c) aren't compiled in.

When SDL is built using the Visual Studio project provided with SDL's source, the expected defines are enabled and OpenGL ES support works as expected.
Comment 1 EntranceJew 2015-08-21 15:59:28 UTC 
Created attachment 2250 [details]
Adds the if(VIDEO_OPENGLES) section to the if(WINDOWS) block.

This patch fixes the issue on Windows 8.1
Comment 2 Alex Szpakowski 2015-08-26 14:11:53 UTC 
*** Bug 3101 has been marked as a duplicate of this bug. ***
Comment 3 Alex Szpakowski 2015-08-28 22:11:17 UTC 
This is fixed with this commit: https://hg.libsdl.org/SDL/rev/dbcbdc2940ef