maxwell3d: Implement Conditional Rendering

Conditional Rendering takes care of conditionaly clearing or drawing
depending on a set of queries. This PR implements the query checks to
stablish if things can be rendered or not.

1 files changed, 12 insertions, 1 deletions

diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp
index 0bb5c068c..6851a64fa 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp
@@ -520,7 +520,13 @@ std::pair<bool, bool> RasterizerOpenGL::ConfigureFramebuffers(
 }
 
 void RasterizerOpenGL::Clear() {
-    const auto& regs = system.GPU().Maxwell3D().regs;
+    const auto& maxwell3d = system.GPU().Maxwell3D();
+
+    if (!maxwell3d.ShouldExecute()) {
+        return;
+    }
+
+    const auto& regs = maxwell3d.regs;
     bool use_color{};
     bool use_depth{};
     bool use_stencil{};
@@ -616,6 +622,11 @@ void RasterizerOpenGL::DrawArrays() {
 
     MICROPROFILE_SCOPE(OpenGL_Drawing);
     auto& gpu = system.GPU().Maxwell3D();
+
+    if (!gpu.ShouldExecute()) {
+        return;
+    }
+
     const auto& regs = gpu.regs;
 
     SyncColorMask();