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Check whether GL context supports the expected API

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I couldn't test it yet myself (GPU supports GL 4.5), so we'll need to see if it behaves
as expected on systems that don't support OpenGL 3.3 or GL ES 3.0.
This commit is contained in:
Rémi Verschelde 2017-11-19 20:47:53 +01:00
parent bea607d53e
commit c574be5566
1 changed files with 17 additions and 24 deletions
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39
drivers/gles3/rasterizer_gles3.cpp
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@ -141,30 +141,24 @@ void RasterizerGLES3::initialize() {
print_line("Using GLES3 video driver"); print_line("Using GLES3 video driver");
} }
#ifdef GLEW_ENABLED
GLuint res = glewInit();
ERR_FAIL_COND(res != GLEW_OK);
if (OS::get_singleton()->is_stdout_verbose()) {
print_line(String("GLES2: Using GLEW ") + (const char *)glewGetString(GLEW_VERSION));
}
// Check for GL 2.1 compatibility, if not bail out
if (!glewIsSupported("GL_VERSION_3_0")) {
ERR_PRINT("Your system's graphic drivers seem not to support OpenGL 3.0+ / GLES 3.0, sorry :(\n"
"Try a drivers update, buy a new GPU or try software rendering on Linux; Godot will now crash with a segmentation fault.");
OS::get_singleton()->alert("Your system's graphic drivers seem not to support OpenGL 3.0+ / GLES 3.0, sorry :(\n"
"Godot Engine will self-destruct as soon as you acknowledge this error message.",
"Fatal error: Insufficient OpenGL / GLES drivers");
// TODO: If it's even possible, we should stop the execution without segfault and memory leaks :)
}
#endif
#ifdef GLAD_ENABLED #ifdef GLAD_ENABLED
if (!gladLoadGL()) { if (!gladLoadGL()) {
ERR_PRINT("Error initializing GLAD"); ERR_PRINT("Error initializing GLAD");
} }
// GLVersion seems to be used for both GL and GL ES, so we need different version checks for them
#ifdef OPENGL_ENABLED // OpenGL 3.3 Core Profile required
if (GLVersion.major < 3 && GLVersion.minor < 3) {
#else // OpenGL ES 3.0
if (GLVersion.major < 3) {
#endif
ERR_PRINT("Your system's graphic drivers seem not to support OpenGL 3.3 / OpenGL ES 3.0, sorry :(\n"
"Try a drivers update, buy a new GPU or try software rendering on Linux; Godot will now crash with a segmentation fault.");
OS::get_singleton()->alert("Your system's graphic drivers seem not to support OpenGL 3.3 / OpenGL ES 3.0, sorry :(\n"
"Godot Engine will self-destruct as soon as you acknowledge this error message.",
"Fatal error: Insufficient OpenGL / GLES driver support");
}
#ifdef __APPLE__ #ifdef __APPLE__
// FIXME glDebugMessageCallbackARB does not seem to work on Mac OS X and opengl 3, this may be an issue with our opengl canvas.. // FIXME glDebugMessageCallbackARB does not seem to work on Mac OS X and opengl 3, this may be an issue with our opengl canvas..
#else #else
@ -175,20 +169,19 @@ void RasterizerGLES3::initialize() {
} }
#endif #endif
#endif #endif // GLAD_ENABLED
/* glDebugMessageControlARB(GL_DEBUG_SOURCE_API_ARB,GL_DEBUG_TYPE_ERROR_ARB,GL_DEBUG_SEVERITY_HIGH_ARB,0,NULL,GL_TRUE); /* // For debugging
glDebugMessageControlARB(GL_DEBUG_SOURCE_API_ARB,GL_DEBUG_TYPE_ERROR_ARB,GL_DEBUG_SEVERITY_HIGH_ARB,0,NULL,GL_TRUE);
glDebugMessageControlARB(GL_DEBUG_SOURCE_API_ARB,GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB,GL_DEBUG_SEVERITY_HIGH_ARB,0,NULL,GL_TRUE); glDebugMessageControlARB(GL_DEBUG_SOURCE_API_ARB,GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB,GL_DEBUG_SEVERITY_HIGH_ARB,0,NULL,GL_TRUE);
glDebugMessageControlARB(GL_DEBUG_SOURCE_API_ARB,GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB,GL_DEBUG_SEVERITY_HIGH_ARB,0,NULL,GL_TRUE); glDebugMessageControlARB(GL_DEBUG_SOURCE_API_ARB,GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB,GL_DEBUG_SEVERITY_HIGH_ARB,0,NULL,GL_TRUE);
glDebugMessageControlARB(GL_DEBUG_SOURCE_API_ARB,GL_DEBUG_TYPE_PORTABILITY_ARB,GL_DEBUG_SEVERITY_HIGH_ARB,0,NULL,GL_TRUE); glDebugMessageControlARB(GL_DEBUG_SOURCE_API_ARB,GL_DEBUG_TYPE_PORTABILITY_ARB,GL_DEBUG_SEVERITY_HIGH_ARB,0,NULL,GL_TRUE);
glDebugMessageControlARB(GL_DEBUG_SOURCE_API_ARB,GL_DEBUG_TYPE_PERFORMANCE_ARB,GL_DEBUG_SEVERITY_HIGH_ARB,0,NULL,GL_TRUE); glDebugMessageControlARB(GL_DEBUG_SOURCE_API_ARB,GL_DEBUG_TYPE_PERFORMANCE_ARB,GL_DEBUG_SEVERITY_HIGH_ARB,0,NULL,GL_TRUE);
glDebugMessageControlARB(GL_DEBUG_SOURCE_API_ARB,GL_DEBUG_TYPE_OTHER_ARB,GL_DEBUG_SEVERITY_HIGH_ARB,0,NULL,GL_TRUE); glDebugMessageControlARB(GL_DEBUG_SOURCE_API_ARB,GL_DEBUG_TYPE_OTHER_ARB,GL_DEBUG_SEVERITY_HIGH_ARB,0,NULL,GL_TRUE);
glDebugMessageInsertARB( glDebugMessageInsertARB(
GL_DEBUG_SOURCE_API_ARB, GL_DEBUG_SOURCE_API_ARB,
GL_DEBUG_TYPE_OTHER_ARB, 1, GL_DEBUG_TYPE_OTHER_ARB, 1,
GL_DEBUG_SEVERITY_HIGH_ARB,5, "hello"); GL_DEBUG_SEVERITY_HIGH_ARB,5, "hello");
*/ */
const GLubyte *renderer = glGetString(GL_RENDERER); const GLubyte *renderer = glGetString(GL_RENDERER);