Merge pull request #3651 from ReinUsesLisp/line-widths

gl_rasterizer: Implement line widths and smooth lines

4 files changed, 25 insertions, 0 deletions

diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp
index c6ff4e27f..f31d960c7 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp
@@ -496,6 +496,7 @@ void RasterizerOpenGL::Draw(bool is_indexed, bool is_instanced) {
     SyncPrimitiveRestart();
     SyncScissorTest();
     SyncPointState();
+    SyncLineState();
     SyncPolygonOffset();
     SyncAlphaTest();
     SyncFramebufferSRGB();
@@ -1311,6 +1312,19 @@ void RasterizerOpenGL::SyncPointState() {
     glDisable(GL_PROGRAM_POINT_SIZE);
 }
 
+void RasterizerOpenGL::SyncLineState() {
+    auto& gpu = system.GPU().Maxwell3D();
+    auto& flags = gpu.dirty.flags;
+    if (!flags[Dirty::LineWidth]) {
+        return;
+    }
+    flags[Dirty::LineWidth] = false;
+
+    const auto& regs = gpu.regs;
+    oglEnable(GL_LINE_SMOOTH, regs.line_smooth_enable);
+    glLineWidth(regs.line_smooth_enable ? regs.line_width_smooth : regs.line_width_aliased);
+}
+
 void RasterizerOpenGL::SyncPolygonOffset() {
     auto& gpu = system.GPU().Maxwell3D();
     auto& flags = gpu.dirty.flags;
diff --git a/src/video_core/renderer_opengl/gl_rasterizer.h b/src/video_core/renderer_opengl/gl_rasterizer.h
index 212dad852..435da4425 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.h
+++ b/src/video_core/renderer_opengl/gl_rasterizer.h
@@ -171,6 +171,9 @@ private:
     /// Syncs the point state to match the guest state
     void SyncPointState();
 
+    /// Syncs the line state to match the guest state
+    void SyncLineState();
+
     /// Syncs the rasterizer enable state to match the guest state
     void SyncRasterizeEnable();
 
diff --git a/src/video_core/renderer_opengl/gl_state_tracker.cpp b/src/video_core/renderer_opengl/gl_state_tracker.cpp
index 255ac3147..d24fad3de 100644
--- a/src/video_core/renderer_opengl/gl_state_tracker.cpp
+++ b/src/video_core/renderer_opengl/gl_state_tracker.cpp
@@ -185,6 +185,12 @@ void SetupDirtyPointSize(Tables& tables) {
     tables[0][OFF(point_sprite_enable)] = PointSize;
 }
 
+void SetupDirtyLineWidth(Tables& tables) {
+    tables[0][OFF(line_width_smooth)] = LineWidth;
+    tables[0][OFF(line_width_aliased)] = LineWidth;
+    tables[0][OFF(line_smooth_enable)] = LineWidth;
+}
+
 void SetupDirtyClipControl(Tables& tables) {
     auto& table = tables[0];
     table[OFF(screen_y_control)] = ClipControl;
@@ -233,6 +239,7 @@ void StateTracker::Initialize() {
     SetupDirtyLogicOp(tables);
     SetupDirtyFragmentClampColor(tables);
     SetupDirtyPointSize(tables);
+    SetupDirtyLineWidth(tables);
     SetupDirtyClipControl(tables);
     SetupDirtyDepthClampEnabled(tables);
     SetupDirtyMisc(tables);
diff --git a/src/video_core/renderer_opengl/gl_state_tracker.h b/src/video_core/renderer_opengl/gl_state_tracker.h
index b882d75c3..0f823288e 100644
--- a/src/video_core/renderer_opengl/gl_state_tracker.h
+++ b/src/video_core/renderer_opengl/gl_state_tracker.h
@@ -78,6 +78,7 @@ enum : u8 {
     LogicOp,
     FragmentClampColor,
     PointSize,
+    LineWidth,
     ClipControl,
     DepthClampEnabled,