LibGL+LibSoftGPU: Add method to query device info

This adds a method `info()` to SoftGPU that returns the name of the
hardware vendor and device name, as well as the number of texture untis.

LibGL uses the returned texture unit count to initialize its internal
texture unit array.

2 files changed, 8 insertions, 4 deletions

diff --git a/Userland/Libraries/LibGL/SoftwareGLContext.cpp b/Userland/Libraries/LibGL/SoftwareGLContext.cpp
index a894283819..72da04c7cb 100644
--- a/Userland/Libraries/LibGL/SoftwareGLContext.cpp
+++ b/Userland/Libraries/LibGL/SoftwareGLContext.cpp
@@ -58,7 +58,10 @@ static constexpr size_t TEXTURE_MATRIX_STACK_LIMIT = 8;
 SoftwareGLContext::SoftwareGLContext(Gfx::Bitmap& frontbuffer)
     : m_frontbuffer(frontbuffer)
     , m_rasterizer(frontbuffer.size())
+    , m_device_info(m_rasterizer.info())
 {
+    m_texture_units.resize(m_device_info.num_texture_units);
+    m_active_texture_unit = &m_texture_units[0];
 }
 
 Optional<ContextParameter> SoftwareGLContext::get_context_parameter(GLenum name)
@@ -333,9 +336,9 @@ GLubyte* SoftwareGLContext::gl_get_string(GLenum name)
 
     switch (name) {
     case GL_VENDOR:
-        return reinterpret_cast<GLubyte*>(const_cast<char*>("The SerenityOS Developers"));
+        return reinterpret_cast<GLubyte*>(const_cast<char*>(m_device_info.vendor_name.characters()));
     case GL_RENDERER:
-        return reinterpret_cast<GLubyte*>(const_cast<char*>("SerenityOS OpenGL"));
+        return reinterpret_cast<GLubyte*>(const_cast<char*>(m_device_info.device_name.characters()));
     case GL_VERSION:
         return reinterpret_cast<GLubyte*>(const_cast<char*>("1.5"));
     case GL_EXTENSIONS:
diff --git a/Userland/Libraries/LibGL/SoftwareGLContext.h b/Userland/Libraries/LibGL/SoftwareGLContext.h
index cde187e80d..042a491652 100644
--- a/Userland/Libraries/LibGL/SoftwareGLContext.h
+++ b/Userland/Libraries/LibGL/SoftwareGLContext.h
@@ -233,10 +233,11 @@ private:
     // Texture objects
     TextureNameAllocator m_name_allocator;
     HashMap<GLuint, RefPtr<Texture>> m_allocated_textures;
-    Array<TextureUnit, 32> m_texture_units;
-    TextureUnit* m_active_texture_unit { &m_texture_units[0] };
+    Vector<TextureUnit, 32> m_texture_units;
+    TextureUnit* m_active_texture_unit;
 
     SoftGPU::Device m_rasterizer;
+    SoftGPU::DeviceInfo const m_device_info;
     bool m_sampler_config_is_dirty { true };
 
     struct Listing {