Merge pull request #3885 from ReinUsesLisp/viewport-swizzles

video_core: Implement viewport swizzles with NV_viewport_swizzle

1 files changed, 8 insertions, 0 deletions

diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp
index 8b3b3ce92..69dcf952f 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp
@@ -1019,6 +1019,14 @@ void RasterizerOpenGL::SyncViewport() {
             const GLdouble near_depth = src.translate_z - src.scale_z * reduce_z;
             const GLdouble far_depth = src.translate_z + src.scale_z;
             glDepthRangeIndexed(static_cast<GLuint>(i), near_depth, far_depth);
+
+            if (!GLAD_GL_NV_viewport_swizzle) {
+                continue;
+            }
+            glViewportSwizzleNV(static_cast<GLuint>(i), MaxwellToGL::ViewportSwizzle(src.swizzle.x),
+                                MaxwellToGL::ViewportSwizzle(src.swizzle.y),
+                                MaxwellToGL::ViewportSwizzle(src.swizzle.z),
+                                MaxwellToGL::ViewportSwizzle(src.swizzle.w));
         }
     }
 }