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- made OpenGL 3.3 a requirement for running the modern render path. Also force '-glversion 3' to use the modern render path, even though actual OpenGL 3.0 won't support it.

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This will exclude Intel HD3000 and many obsolete drivers for NVidia and ATI which should have been updated long ago.
This commit is contained in:
Christoph Oelckers 2017-06-28 17:57:04 +02:00
parent 9c3361dfe2
commit c74356a1c0
3 changed files with 6 additions and 14 deletions
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16
src/gl/system/gl_interface.cpp
View file

@ -151,6 +151,7 @@ void gl_LoadExtensions()
{
double v1 = strtod(version, NULL);
double v2 = strtod(glversion, NULL);
if (v1 >= 3.0 && v1 < 3.3) v1 = 3.3; // promote '3' to 3.3 to avoid falling back to the legacy path.
if (v2 < v1) version = glversion;
else Printf("Emulating OpenGL v %s\n", version);
}
@ -204,8 +205,9 @@ void gl_LoadExtensions()
gl.flags |= RFL_SAMPLER_OBJECTS;
}
// The minimum requirement for the modern render path are GL 3.0 + uniform buffers. Also exclude the Linux Mesa driver at GL 3.0 because it errors out on shader compilation.
if (gl_version < 3.0f || (gl_version < 3.1f && (!CheckExtension("GL_ARB_uniform_buffer_object") || strstr(gl.vendorstring, "X.Org") != nullptr)))
// The minimum requirement for the modern render path is GL 3.3.
// Although some GL 3.1 or 3.2 solutions may theoretically work they are usually too broken or too slow.
if (gl_version < 3.3f)
{
gl.legacyMode = true;
gl.lightmethod = LM_LEGACY;
@ -213,16 +215,6 @@ void gl_LoadExtensions()
gl.glslversion = 0;
gl.flags |= RFL_NO_CLIP_PLANES;
}
else if (gl.glslversion < 1.4f && !CheckExtension("GL_ARB_uniform_buffer_object"))
{
// Some old ATI drivers report OpenGL 3.1 with GLSL version 1.3 and no support for uniform buffers.
// We have no choice but to force them down to OpenGL 2.x.
gl.legacyMode = true;
gl.lightmethod = LM_LEGACY;
gl.buffermethod = BM_LEGACY;
gl.glslversion = 0;
gl.flags |= RFL_NO_CLIP_PLANES;
}
else
{
gl.legacyMode = false;

2
src/posix/cocoa/i_video.mm
View file

@ -530,7 +530,7 @@ NSOpenGLPixelFormat* CreatePixelFormat(const OpenGLProfile profile)
if (nullptr != glversion)
{
const double version = strtod(glversion, nullptr) + 0.01;
if (version < 3.2)
if (version < 3.0)
{
profile = NSOpenGLProfileVersionLegacy;
}

2
src/win32/win32gliface.cpp
View file

@ -877,7 +877,7 @@ bool Win32GLVideo::InitHardware (HWND Window, int multisample)
int prof = WGL_CONTEXT_CORE_PROFILE_BIT_ARB;
const char *version = Args->CheckValue("-glversion");
if (version != nullptr && strcmp(version, "3.0") < 0) prof = WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
if (version != nullptr && strtod(version, nullptr) < 3.0) prof = WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
for (; prof <= WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB; prof++)
{