From c81caf1949f5a659db411de9158a0319465c25b6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Branimir=20Karad=C5=BEi=C4=87?= <branimirkaradzic@gmail.com>
Date: Thu, 2 Nov 2017 19:02:15 -0700
Subject: [PATCH] GL: Fixed state tracking when scissor is zero size. PR #1271.

---
 src/renderer_gl.cpp | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/renderer_gl.cpp b/src/renderer_gl.cpp
index b045867ae..2fcdca862 100644
--- a/src/renderer_gl.cpp
+++ b/src/renderer_gl.cpp
@@ -6902,11 +6902,9 @@ namespace bgfx { namespace gl
 
 				const uint64_t newFlags = draw.m_stateFlags;
 				uint64_t changedFlags = currentState.m_stateFlags ^ draw.m_stateFlags;
-				currentState.m_stateFlags = newFlags;
 
 				const uint64_t newStencil = draw.m_stencil;
 				uint64_t changedStencil = currentState.m_stencil ^ draw.m_stencil;
-				currentState.m_stencil = newStencil;
 
 				if (resetState)
 				{
@@ -6914,8 +6912,6 @@ namespace bgfx { namespace gl
 					currentState.m_scissor = !draw.m_scissor;
 					changedFlags = BGFX_STATE_MASK;
 					changedStencil = packStencil(BGFX_STENCIL_MASK, BGFX_STENCIL_MASK);
-					currentState.m_stateFlags = newFlags;
-					currentState.m_stencil    = newStencil;
 
 					currentBind.clear();
 				}
@@ -6947,7 +6943,7 @@ namespace bgfx { namespace gl
 						scissorRect.setIntersect(viewScissorRect, _render->m_frameCache.m_rectCache.m_cache[scissor]);
 						if (scissorRect.isZeroArea() )
 						{
-							//continue;
+							continue;
 						}
 
 						GL_CHECK(glEnable(GL_SCISSOR_TEST) );
@@ -6959,6 +6955,9 @@ namespace bgfx { namespace gl
 					}
 				}
 
+				currentState.m_stateFlags = newFlags;
+				currentState.m_stencil    = newStencil;
+
 				if (0 != changedStencil)
 				{
 					if (0 != newStencil)