Implement depth clamp

1 files changed, 16 insertions, 0 deletions

diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp
index 98fb5a9aa..92d8203b3 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp
@@ -113,10 +113,24 @@ RasterizerOpenGL::RasterizerOpenGL(Core::Frontend::EmuWindow& window, ScreenInfo
     glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &uniform_buffer_alignment);
 
     LOG_CRITICAL(Render_OpenGL, "Sync fixed function OpenGL state here!");
+    CheckExtensions();
 }
 
 RasterizerOpenGL::~RasterizerOpenGL() {}
 
+void RasterizerOpenGL::CheckExtensions() {
+    if (!GLAD_GL_ARB_texture_filter_anisotropic && !GLAD_GL_EXT_texture_filter_anisotropic) {
+        LOG_WARNING(
+            Render_OpenGL,
+            "Anisotropic filter is not supported! This can cause graphical issues in some games.");
+    }
+    if (!GLAD_GL_ARB_buffer_storage) {
+        LOG_WARNING(
+            Render_OpenGL,
+            "Buffer storage control is not supported! This can cause performance degradation.");
+    }
+}
+
 void RasterizerOpenGL::SetupVertexFormat() {
     auto& gpu = Core::System::GetInstance().GPU().Maxwell3D();
     const auto& regs = gpu.regs;
@@ -1007,6 +1021,8 @@ void RasterizerOpenGL::SyncViewport(OpenGLState& current_state) {
         viewport.depth_range_far = regs.viewports[i].depth_range_far;
         viewport.depth_range_near = regs.viewports[i].depth_range_near;
     }
+    state.depth_clamp.far_plane = regs.view_volume_clip_control.depth_clamp_far != 0;
+    state.depth_clamp.near_plane = regs.view_volume_clip_control.depth_clamp_near != 0;
 }
 
 void RasterizerOpenGL::SyncClipEnabled() {