From e8125af8dd8efac3f7171e234b5aee6edfadc626 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Thu, 26 Dec 2019 02:11:01 -0300
Subject: gl_state: Remove rasterizer disable tracking

---
 src/video_core/renderer_opengl/gl_rasterizer.cpp    | 8 ++++----
 src/video_core/renderer_opengl/gl_rasterizer.h      | 2 +-
 src/video_core/renderer_opengl/gl_state.cpp         | 5 -----
 src/video_core/renderer_opengl/gl_state.h           | 3 ---
 src/video_core/renderer_opengl/gl_texture_cache.cpp | 2 ++
 src/video_core/renderer_opengl/renderer_opengl.cpp  | 1 +
 6 files changed, 8 insertions(+), 13 deletions(-)

diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp
index 63295761a..cb3c81398 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp
@@ -462,7 +462,7 @@ void RasterizerOpenGL::Clear() {
 
     ConfigureClearFramebuffer(clear_state, use_color, use_depth, use_stencil);
 
-    SyncRasterizeEnable(clear_state);
+    SyncRasterizeEnable();
     if (regs.clear_flags.scissor) {
         SyncScissorTest();
     }
@@ -494,7 +494,7 @@ void RasterizerOpenGL::Draw(bool is_indexed, bool is_instanced) {
     query_cache.UpdateCounters();
 
     SyncViewport();
-    SyncRasterizeEnable(state);
+    SyncRasterizeEnable();
     SyncColorMask();
     SyncFragmentColorClampState();
     SyncMultiSampleState();
@@ -1048,9 +1048,9 @@ void RasterizerOpenGL::SyncStencilTestState() {
     }
 }
 
-void RasterizerOpenGL::SyncRasterizeEnable(OpenGLState& current_state) {
+void RasterizerOpenGL::SyncRasterizeEnable() {
     const auto& regs = system.GPU().Maxwell3D().regs;
-    current_state.rasterizer_discard = regs.rasterize_enable == 0;
+    oglEnable(GL_RASTERIZER_DISCARD, regs.rasterize_enable == 0);
 }
 
 void RasterizerOpenGL::SyncColorMask() {
diff --git a/src/video_core/renderer_opengl/gl_rasterizer.h b/src/video_core/renderer_opengl/gl_rasterizer.h
index d1d0aec32..de21a3511 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.h
+++ b/src/video_core/renderer_opengl/gl_rasterizer.h
@@ -176,7 +176,7 @@ private:
     void SyncPointState();
 
     /// Syncs the rasterizer enable state to match the guest state
-    void SyncRasterizeEnable(OpenGLState& current_state);
+    void SyncRasterizeEnable();
 
     /// Syncs Color Mask
     void SyncColorMask();
diff --git a/src/video_core/renderer_opengl/gl_state.cpp b/src/video_core/renderer_opengl/gl_state.cpp
index 7c08cc3c2..96c3f40f4 100644
--- a/src/video_core/renderer_opengl/gl_state.cpp
+++ b/src/video_core/renderer_opengl/gl_state.cpp
@@ -113,10 +113,6 @@ void OpenGLState::ApplyClipDistances() {
     }
 }
 
-void OpenGLState::ApplyRasterizerDiscard() {
-    Enable(GL_RASTERIZER_DISCARD, cur_state.rasterizer_discard, rasterizer_discard);
-}
-
 void OpenGLState::ApplyStencilTest() {
     Enable(GL_STENCIL_TEST, cur_state.stencil.test_enabled, stencil.test_enabled);
 
@@ -254,7 +250,6 @@ void OpenGLState::Apply() {
     ApplyShaderProgram();
     ApplyProgramPipeline();
     ApplyClipDistances();
-    ApplyRasterizerDiscard();
     ApplyStencilTest();
     ApplyBlending();
     ApplyTextures();
diff --git a/src/video_core/renderer_opengl/gl_state.h b/src/video_core/renderer_opengl/gl_state.h
index b4c957c0d..6520c88d2 100644
--- a/src/video_core/renderer_opengl/gl_state.h
+++ b/src/video_core/renderer_opengl/gl_state.h
@@ -13,8 +13,6 @@ namespace OpenGL {
 
 class OpenGLState {
 public:
-    bool rasterizer_discard = false; // GL_RASTERIZER_DISCARD
-
     struct {
         bool test_enabled = false; // GL_STENCIL_TEST
         struct {
@@ -79,7 +77,6 @@ public:
     void ApplyShaderProgram();
     void ApplyProgramPipeline();
     void ApplyClipDistances();
-    void ApplyRasterizerDiscard();
     void ApplyStencilTest();
     void ApplyTargetBlending(std::size_t target, bool force);
     void ApplyGlobalBlending();
diff --git a/src/video_core/renderer_opengl/gl_texture_cache.cpp b/src/video_core/renderer_opengl/gl_texture_cache.cpp
index f6cb02c53..ed2daf74c 100644
--- a/src/video_core/renderer_opengl/gl_texture_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_texture_cache.cpp
@@ -536,6 +536,8 @@ void TextureCacheOpenGL::ImageBlit(View& src_view, View& dst_view,
     } else {
         glDisable(GL_FRAMEBUFFER_SRGB);
     }
+    // TODO(Rodrigo): Find out if rasterizer discard affects blits
+    glDisable(GL_RASTERIZER_DISCARD);
     glDisablei(GL_SCISSOR_TEST, 0);
 
     u32 buffers{};
diff --git a/src/video_core/renderer_opengl/renderer_opengl.cpp b/src/video_core/renderer_opengl/renderer_opengl.cpp
index 12e820979..d18adaddc 100644
--- a/src/video_core/renderer_opengl/renderer_opengl.cpp
+++ b/src/video_core/renderer_opengl/renderer_opengl.cpp
@@ -580,6 +580,7 @@ void RendererOpenGL::DrawScreen(const Layout::FramebufferLayout& layout) {
     glDisable(GL_ALPHA_TEST);
     glDisable(GL_DEPTH_TEST);
     glDisable(GL_POLYGON_OFFSET_FILL);
+    glDisable(GL_RASTERIZER_DISCARD);
     glDisablei(GL_SCISSOR_TEST, 0);
     glCullFace(GL_BACK);
     glFrontFace(GL_CW);
-- 
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