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OpenGL3: Add driver-dependent feature checks

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This commit is contained in:
numzero
2023-04-15 18:11:08 +03:00
committed by sfan5
parent ab628e641c
commit 4ee1ab261e
8 changed files with 102 additions and 45 deletions
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27
source/Irrlicht/OpenGL3/Driver.cpp
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@ -26,6 +26,33 @@ namespace video {
return {OpenGLSpec::Core, (u8)major, (u8)minor, 0};
}
void COpenGL3Driver::initFeatures() {
assert (Version.Spec == OpenGLSpec::Compat);
assert (Version.Major >= 3);
initExtensionsNew();
// COGLESCoreExtensionHandler::Feature
static_assert(MATERIAL_MAX_TEXTURES <= 16, "Only up to 16 textures are guaranteed");
Feature.BlendOperation = true;
Feature.ColorAttachment = GetInteger(GL_MAX_COLOR_ATTACHMENTS);
Feature.MaxTextureUnits = MATERIAL_MAX_TEXTURES;
Feature.MultipleRenderTarget = GetInteger(GL_MAX_DRAW_BUFFERS);
// COGLESCoreExtensionHandler
if (FeatureAvailable[IRR_GL_EXT_texture_filter_anisotropic])
MaxAnisotropy = GetInteger(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT);
MaxIndices = GetInteger(GL_MAX_ELEMENTS_INDICES);
MaxTextureSize = GetInteger(GL_MAX_TEXTURE_SIZE);
glGetFloatv(GL_MAX_TEXTURE_LOD_BIAS, &MaxTextureLODBias);
glGetFloatv(GL_ALIASED_LINE_WIDTH_RANGE, DimAliasedLine);
DimAliasedPoint[0] = 1.0f;
DimAliasedPoint[1] = 1.0f;
GLint val = 0;
glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_STENCIL, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &val);
StencilBuffer = val == GL_FRAMEBUFFER_DEFAULT;
}
IVideoDriver* createOpenGL3Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager)
{
os::Printer::log("Using COpenGL3Driver", ELL_INFORMATION);

1
source/Irrlicht/OpenGL3/Driver.h
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@ -19,6 +19,7 @@ namespace video {
protected:
OpenGLVersion getVersionFromOpenGL() const override;
void initFeatures() override;
};
}