4 files changed, 20 insertions, 0 deletions

diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp
index 10d407bd2..98799056c 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp
@@ -582,6 +582,7 @@ void RasterizerOpenGL::DrawArrays() {
 
     ConfigureFramebuffers(state);
     SyncColorMask();
+    SyncFragmentColorClampState();
     SyncDepthTestState();
     SyncStencilTestState();
     SyncBlendState();
@@ -1032,6 +1033,11 @@ void RasterizerOpenGL::SyncColorMask() {
     }
 }
 
+void RasterizerOpenGL::SyncFragmentColorClampState() {
+    const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs;
+    state.fragment_color_clamp.enabled = regs.frag_color_clamp != 0;
+}
+
 void RasterizerOpenGL::SyncBlendState() {
     const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs;
 
diff --git a/src/video_core/renderer_opengl/gl_rasterizer.h b/src/video_core/renderer_opengl/gl_rasterizer.h
index 8ef0f6c12..d3fa0b6fc 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.h
+++ b/src/video_core/renderer_opengl/gl_rasterizer.h
@@ -160,6 +160,9 @@ private:
     /// Syncs the LogicOp state to match the guest state
     void SyncLogicOpState();
 
+    /// Syncs the the color clamp state
+    void SyncFragmentColorClampState();
+
     /// Syncs the scissor test state to match the guest state
     void SyncScissorTest();
 
diff --git a/src/video_core/renderer_opengl/gl_state.cpp b/src/video_core/renderer_opengl/gl_state.cpp
index dd6d946e5..6998dd92b 100644
--- a/src/video_core/renderer_opengl/gl_state.cpp
+++ b/src/video_core/renderer_opengl/gl_state.cpp
@@ -89,6 +89,7 @@ OpenGLState::OpenGLState() {
     clip_distance = {};
 
     point.size = 1;
+    fragment_color_clamp.enabled = false;
 }
 
 void OpenGLState::ApplyDefaultState() {
@@ -497,6 +498,12 @@ void OpenGLState::Apply() const {
     if (point.size != cur_state.point.size) {
         glPointSize(point.size);
     }
+    if (GLAD_GL_ARB_color_buffer_float) {
+        if (fragment_color_clamp.enabled != cur_state.fragment_color_clamp.enabled) {
+            glClampColor(GL_CLAMP_FRAGMENT_COLOR_ARB,
+                         fragment_color_clamp.enabled ? GL_TRUE : GL_FALSE);
+        }
+    }
     ApplyColorMask();
     ApplyViewport();
     ApplyStencilTest();
diff --git a/src/video_core/renderer_opengl/gl_state.h b/src/video_core/renderer_opengl/gl_state.h
index da487461f..6079f6e0b 100644
--- a/src/video_core/renderer_opengl/gl_state.h
+++ b/src/video_core/renderer_opengl/gl_state.h
@@ -40,6 +40,10 @@ public:
     } framebuffer_srgb;
 
     struct {
+        bool enabled; // GL_CLAMP_FRAGMENT_COLOR_ARB
+    } fragment_color_clamp;
+
+    struct {
         bool enabled; // viewports arrays are only supported when geometry shaders are enabled.
     } geometry_shaders;