Ticket #13215: 0001-Prevent-call-to-glGetIntegerv-without-context.patch

File 0001-Prevent-call-to-glGetIntegerv-without-context.patch, 1.2 KB (added by GMTA, 3 years ago)

  • backends/graphics3d/openglsdl/openglsdl-graphics3d.cpp 

    From c758a59b2b26e3ab22c4fbcba6c83e0b385b86ce Mon Sep 17 00:00:00 2001
From: Jelle Raaijmakers <jelle@gmta.nl>
Date: Wed, 12 Jan 2022 13:41:39 +0100
Subject: [PATCH] Prevent call to `glGetIntegerv` without context

This call to `SDL_GL_GetAttribute` happens when switching from the
launcher to the game, when no GL context may exist. This caused Grim
Fandango to crash almost immediately.

Since this is for MSAA which we do not yet support, patch it out.
---
 backends/graphics3d/openglsdl/openglsdl-graphics3d.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backends/graphics3d/openglsdl/openglsdl-graphics3d.cpp b/backends/graphics3d/openglsdl/openglsdl-graphics3d.cpp
index d5c034f..8a4e3ff 100644
    a b void OpenGLSdlGraphics3dManager::setupScreen() {  
    185185                // (or not bridged in Emscripten?). This forces a windows reset.
    186186                currentSamples = -1;
    187187                #else
    188                 SDL_GL_GetAttribute(SDL_GL_MULTISAMPLESAMPLES, &currentSamples);
     188                currentSamples = -1;
    189189                #endif
    190190
    191191                // When rendering to a framebuffer, MSAA is enabled on that framebuffer, not on the screen