From 99174e4e5fb4b7079da80b35a6dfd68f3fd56a1c Mon Sep 17 00:00:00 2001
From: lbavoil <lbavoil@nvidia.com>
Date: Fri, 25 Mar 2016 13:01:54 +0100
Subject: GFSDK_HBAO+_distro_r3.0_cl20573789

---
 src/AppState_GL.cpp | 104 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 src/AppState_GL.cpp

(limited to 'src/AppState_GL.cpp')

diff --git a/src/AppState_GL.cpp b/src/AppState_GL.cpp
new file mode 100644
index 0000000..85bf40f
--- /dev/null
+++ b/src/AppState_GL.cpp
@@ -0,0 +1,104 @@
+/* 
+* Copyright (c) 2008-2016, NVIDIA CORPORATION. All rights reserved. 
+* 
+* NVIDIA CORPORATION and its licensors retain all intellectual property 
+* and proprietary rights in and to this software, related documentation 
+* and any modifications thereto. Any use, reproduction, disclosure or 
+* distribution of this software and related documentation without an express 
+* license agreement from NVIDIA CORPORATION is strictly prohibited. 
+*/
+
+#include "AppState_GL.h"
+
+#if SUPPORT_GL
+
+//--------------------------------------------------------------------------------
+void GFSDK::SSAO::GL::AppState::Save(const GFSDK_SSAO_GLFunctions& GL)
+{
+    ASSERT_GL_ERROR(GL);
+
+    GL.glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &m_DrawFBO);
+    GL.glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &m_VAO);
+    GL.glGetIntegerv(GL_UNIFORM_BUFFER_BINDING, &m_ContextUBO);
+    for (GLuint BindingPoint = 0; BindingPoint < SIZEOF_ARRAY(m_BindPointUBOs); ++BindingPoint)
+    {
+        GL.glGetIntegeri_v(GL_UNIFORM_BUFFER_BINDING, BindingPoint, &m_BindPointUBOs[BindingPoint]);
+    }
+
+    GL.glGetIntegerv(GL_ACTIVE_TEXTURE, &m_ActiveTexture);
+    GL.glGetIntegerv(GL_TEXTURE_BINDING_2D, &m_TextureBinding2D);
+    GL.glGetIntegerv(GL_TEXTURE_BINDING_2D_ARRAY, &m_TextureBinding2DArray);
+    GL.glGetIntegerv(GL_CURRENT_PROGRAM, &m_Program);
+    GL.glGetIntegerv(GL_VIEWPORT, m_Viewport);
+    GL.glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &m_PolygonOffsetFactor);
+    GL.glGetFloatv(GL_POLYGON_OFFSET_UNITS, &m_PolygonOffsetUnits);
+
+    m_CullFace = GL.glIsEnabled(GL_CULL_FACE);
+    m_ScissorTest = GL.glIsEnabled(GL_SCISSOR_TEST);
+    m_Multisample = GL.glIsEnabled(GL_MULTISAMPLE);
+    m_DepthTest = GL.glIsEnabled(GL_DEPTH_TEST);
+    m_StencilTest = GL.glIsEnabled(GL_STENCIL_TEST);
+    
+#if !USE_GLES
+    m_ColorLogicOp = GL.glIsEnabled(GL_COLOR_LOGIC_OP);
+#endif
+    
+    m_SampleCoverage = GL.glIsEnabled(GL_SAMPLE_COVERAGE);
+    m_SampleAlphaToCoverage = GL.glIsEnabled(GL_SAMPLE_ALPHA_TO_COVERAGE);
+    m_Blend = GL.glIsEnabledi(GL_BLEND, 0);
+
+    GL.glGetIntegerv(GL_BLEND_SRC_RGB, &m_BlendSrcRGB);
+    GL.glGetIntegerv(GL_BLEND_SRC_ALPHA, &m_BlendSrcAlpha);
+    GL.glGetIntegerv(GL_BLEND_DST_RGB, &m_BlendDstRGB);
+    GL.glGetIntegerv(GL_BLEND_DST_ALPHA, &m_BlendDstAlpha);
+    GL.glGetIntegerv(GL_BLEND_EQUATION_RGB, &m_BlendEquationRGB);
+    GL.glGetIntegerv(GL_BLEND_EQUATION_ALPHA, &m_BlendEquationAlpha);
+    GL.glGetFloatv(GL_BLEND_COLOR, m_BlendColor);
+    GL.glGetBooleani_v(GL_COLOR_WRITEMASK, 0, m_ColorWriteMask);
+
+    ASSERT_GL_ERROR(GL);
+}
+
+//--------------------------------------------------------------------------------
+void GFSDK::SSAO::GL::AppState::Restore(const GFSDK_SSAO_GLFunctions& GL)
+{
+    ASSERT_GL_ERROR(GL);
+
+    GL.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_DrawFBO);
+    GL.glBindVertexArray(m_VAO);
+    GL.glBindBuffer(GL_UNIFORM_BUFFER, m_ContextUBO);
+    for (GLuint BindingPoint = 0; BindingPoint < SIZEOF_ARRAY(m_BindPointUBOs); ++BindingPoint)
+    {
+        GL.glBindBufferBase(GL_UNIFORM_BUFFER, BindingPoint, m_BindPointUBOs[BindingPoint]);
+    }
+
+    GL.glActiveTexture(m_ActiveTexture);
+    GL.glBindTexture(GL_TEXTURE_2D, m_TextureBinding2D);
+    GL.glBindTexture(GL_TEXTURE_2D_ARRAY, m_TextureBinding2DArray);
+    GL.glUseProgram(m_Program);
+    GL.glViewport(m_Viewport[0], m_Viewport[1], m_Viewport[2], m_Viewport[3]);
+    GL.glPolygonOffset(m_PolygonOffsetFactor, m_PolygonOffsetUnits);
+
+    EnableState(GL, m_CullFace, GL_CULL_FACE);
+    EnableState(GL, m_ScissorTest, GL_SCISSOR_TEST);
+    EnableState(GL, m_Multisample, GL_MULTISAMPLE);
+    EnableState(GL, m_DepthTest, GL_DEPTH_TEST);
+    EnableState(GL, m_StencilTest, GL_STENCIL_TEST);
+    
+#if !USE_GLES
+    EnableState(GL, m_ColorLogicOp, GL_COLOR_LOGIC_OP);
+#endif
+    
+    EnableState(GL, m_SampleCoverage, GL_SAMPLE_COVERAGE);
+    EnableState(GL, m_SampleAlphaToCoverage, GL_SAMPLE_ALPHA_TO_COVERAGE);
+    EnableState(GL, m_Blend, GL_BLEND);
+
+    GL.glBlendFuncSeparate(m_BlendSrcRGB, m_BlendDstRGB, m_BlendSrcAlpha, m_BlendDstAlpha);
+    GL.glBlendEquationSeparate(m_BlendEquationRGB, m_BlendEquationAlpha);
+    GL.glBlendColor(m_BlendColor[0], m_BlendColor[1], m_BlendColor[2], m_BlendColor[3]);
+    GL.glColorMaski(0, m_ColorWriteMask[0], m_ColorWriteMask[1], m_ColorWriteMask[2], m_ColorWriteMask[3]);
+
+    ASSERT_GL_ERROR(GL);
+}
+
+#endif //SUPPORT_GL
-- 
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