From b84d429c2ec59e54a89d9d4e34b0df9f22172e8f Mon Sep 17 00:00:00 2001
From: ameerj <52414509+ameerj@users.noreply.github.com>
Date: Mon, 27 Dec 2021 23:59:32 -0500
Subject: glsl_context_get_set: Add alternative cbuf type for broken drivers

some drivers have a bug bitwise converting floating point cbuf values to uint variables. This adds a workaround for these drivers to make all cbufs uint and convert to floating point as needed.
---
 src/video_core/renderer_opengl/gl_device.cpp       | 9 ++-------
 src/video_core/renderer_opengl/gl_device.h         | 5 +++++
 src/video_core/renderer_opengl/gl_shader_cache.cpp | 1 +
 3 files changed, 8 insertions(+), 7 deletions(-)

(limited to 'src/video_core')

diff --git a/src/video_core/renderer_opengl/gl_device.cpp b/src/video_core/renderer_opengl/gl_device.cpp
index 0764ea6e0..32736126f 100644
--- a/src/video_core/renderer_opengl/gl_device.cpp
+++ b/src/video_core/renderer_opengl/gl_device.cpp
@@ -182,17 +182,12 @@ Device::Device() {
         shader_backend = Settings::ShaderBackend::GLSL;
     }
 
-    if (shader_backend == Settings::ShaderBackend::GLSL && is_nvidia &&
-        !Settings::values.renderer_debug) {
+    if (shader_backend == Settings::ShaderBackend::GLSL && is_nvidia) {
         const std::string_view driver_version = version.substr(13);
         const int version_major =
             std::atoi(driver_version.substr(0, driver_version.find(".")).data());
-
         if (version_major >= 495) {
-            LOG_WARNING(Render_OpenGL, "NVIDIA drivers 495 and later causes significant problems "
-                                       "with yuzu. Forcing GLASM as a mitigation.");
-            shader_backend = Settings::ShaderBackend::GLASM;
-            use_assembly_shaders = true;
+            has_cbuf_ftou_bug = true;
         }
     }
 
diff --git a/src/video_core/renderer_opengl/gl_device.h b/src/video_core/renderer_opengl/gl_device.h
index de9e41659..fe53ef991 100644
--- a/src/video_core/renderer_opengl/gl_device.h
+++ b/src/video_core/renderer_opengl/gl_device.h
@@ -152,6 +152,10 @@ public:
         return need_fastmath_off;
     }
 
+    bool HasCbufFtouBug() const {
+        return has_cbuf_ftou_bug;
+    }
+
     Settings::ShaderBackend GetShaderBackend() const {
         return shader_backend;
     }
@@ -200,6 +204,7 @@ private:
     bool has_sparse_texture_2{};
     bool warp_size_potentially_larger_than_guest{};
     bool need_fastmath_off{};
+    bool has_cbuf_ftou_bug{};
 
     std::string vendor_name;
 };
diff --git a/src/video_core/renderer_opengl/gl_shader_cache.cpp b/src/video_core/renderer_opengl/gl_shader_cache.cpp
index 29c6e1a5f..1efcc3562 100644
--- a/src/video_core/renderer_opengl/gl_shader_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_cache.cpp
@@ -214,6 +214,7 @@ ShaderCache::ShaderCache(RasterizerOpenGL& rasterizer_, Core::Frontend::EmuWindo
           .has_broken_fp16_float_controls = false,
           .has_gl_component_indexing_bug = device.HasComponentIndexingBug(),
           .has_gl_precise_bug = device.HasPreciseBug(),
+          .has_gl_cbuf_ftou_bug = device.HasCbufFtouBug(),
           .ignore_nan_fp_comparisons = true,
           .gl_max_compute_smem_size = device.GetMaxComputeSharedMemorySize(),
       },
-- 
cgit v1.2.3