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/*
* Copyright (c) 2008-2017, 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.
*/
#if SUPPORT_GL
#pragma once
#include "Common.h"
#include "ConstantBuffers.h"
#include "InputDepthInfo.h"
#include "InputNormalInfo.h"
#include "OutputInfo.h"
#include "ProjectionMatrixInfo.h"
#include "RenderOptions.h"
#include "RenderTargets_GL.h"
#include "Shaders_GL.h"
#include "States_GL.h"
#include "AppState_GL.h"
#include "TimestampQueries.h"
#include "BuildVersion.h"
#include "VAO_GL.h"
namespace GFSDK
{
namespace SSAO
{
namespace GL
{
//--------------------------------------------------------------------------------
class Renderer : public GFSDK_SSAO_Context_GL
{
public:
Renderer(const GFSDK_SSAO_GLFunctions& GL, GFSDK_SSAO_CustomHeap NewDelete)
: m_GL(GL)
, m_NewDelete(NewDelete)
, m_FullResViewDepthTextureId(0)
{
}
//
// API
//
GFSDK_SSAO_Status Create(GFSDK_SSAO_Version HeaderVersion);
UINT GetAllocatedVideoMemoryBytes();
void Release();
GFSDK_SSAO_Status PreCreateFBOs(
const GFSDK_SSAO_Parameters& Parameters,
UINT ViewportWidth,
UINT ViewportHeight);
GFSDK_SSAO_Status GetProjectionMatrixDepthRange(
const GFSDK_SSAO_InputData_GL& InputData,
GFSDK_SSAO_ProjectionMatrixDepthRange& OutputDepthRange);
GFSDK_SSAO_Status RenderAO(
const GFSDK_SSAO_InputData_GL& InputData,
const GFSDK_SSAO_Parameters& Parameters,
const GFSDK_SSAO_Output_GL& Output,
GFSDK_SSAO_RenderMask RenderMask = GFSDK_SSAO_RENDER_AO);
//
// Internals
//
#if ENABLE_RENDER_TIMES
static GFSDK::SSAO::RenderTimes s_RenderTimes;
#endif
private:
void CreateResources();
void ReleaseResources();
void SetAOResolution(UINT Width, UINT Height);
void SetFullscreenState();
void Render(GFSDK_SSAO_RenderMask RenderMask);
void RenderHBAOPlus(GFSDK_SSAO_RenderMask RenderMask);
Generated::ShaderPermutations::RESOLVE_DEPTH GetResolveDepthPermutation()
{
return (m_InputDepth.Texture.SampleCount == 1) ? Generated::ShaderPermutations::RESOLVE_DEPTH_0 :
Generated::ShaderPermutations::RESOLVE_DEPTH_1;
}
Generated::ShaderPermutations::FETCH_GBUFFER_NORMAL GetFetchNormalPermutation()
{
return (!m_InputNormal.Texture.IsSet()) ? Generated::ShaderPermutations::FETCH_GBUFFER_NORMAL_0 :
(m_InputNormal.Texture.SampleCount == 1) ? Generated::ShaderPermutations::FETCH_GBUFFER_NORMAL_1 :
Generated::ShaderPermutations::FETCH_GBUFFER_NORMAL_2;
}
Generated::ShaderPermutations::ENABLE_FOREGROUND_AO GetEnableForegroundAOPermutation()
{
return (m_Options.EnableForegroundAO) ? Generated::ShaderPermutations::ENABLE_FOREGROUND_AO_1 :
Generated::ShaderPermutations::ENABLE_FOREGROUND_AO_0;
}
Generated::ShaderPermutations::ENABLE_BACKGROUND_AO GetEnableBackgroundAOPermutation()
{
return (m_Options.EnableBackgroundAO) ? Generated::ShaderPermutations::ENABLE_BACKGROUND_AO_1 :
Generated::ShaderPermutations::ENABLE_BACKGROUND_AO_0;
}
Generated::ShaderPermutations::ENABLE_DEPTH_THRESHOLD GetEnableDepthThresholdPermutation()
{
return (m_Options.EnableDepthThreshold) ? Generated::ShaderPermutations::ENABLE_DEPTH_THRESHOLD_1 :
Generated::ShaderPermutations::ENABLE_DEPTH_THRESHOLD_0;
}
Generated::ShaderPermutations::ENABLE_BLUR GetEnableBlurPermutation()
{
return (m_Options.Blur.Enable) ? Generated::ShaderPermutations::ENABLE_BLUR_1 :
Generated::ShaderPermutations::ENABLE_BLUR_0;
}
Generated::ShaderPermutations::KERNEL_RADIUS GetBlurKernelRadiusPermutation()
{
return (m_Options.Blur.Radius == GFSDK_SSAO_BLUR_RADIUS_2) ? Generated::ShaderPermutations::KERNEL_RADIUS_2 :
Generated::ShaderPermutations::KERNEL_RADIUS_4;
}
Generated::ShaderPermutations::ENABLE_SHARPNESS_PROFILE GetEnableSharpnessProfilePermutation()
{
return (m_Options.Blur.SharpnessProfile.Enable) ? Generated::ShaderPermutations::ENABLE_SHARPNESS_PROFILE_1 :
Generated::ShaderPermutations::ENABLE_SHARPNESS_PROFILE_0;
}
GFSDK::SSAO::GL::GLSLPrograms::CopyDepth_PS& GetCopyDepthPS()
{
return (m_InputDepth.DepthTextureType == GFSDK_SSAO_VIEW_DEPTHS) ?
m_Shaders.CopyDepth_PS.Get(GetResolveDepthPermutation()) :
m_Shaders.LinearizeDepth_PS.Get(GetResolveDepthPermutation());
}
GLint GetAODepthWrapMode()
{
return (m_Options.DepthClampMode == GFSDK_SSAO_CLAMP_TO_EDGE) ? GL_CLAMP_TO_EDGE : GL_CLAMP_TO_BORDER;
}
GFSDK_SSAO_Texture_GL GetFullResNormalTexture()
{
return (m_InputNormal.Texture.IsSet()) ? m_InputNormal.Texture.GLTexture : m_RTs.GetFullResNormalTexture(m_GL)->GetTexture();
}
void DrawLinearDepth(GFSDK::SSAO::GL::GLSLPrograms::CopyDepth_PS& Program);
void DrawDebugNormals(GLSLPrograms::DebugNormals_PS& Program);
void DrawDeinterleavedDepth(GLSLPrograms::DeinterleaveDepth_PS& Program);
void DrawReconstructedNormal(GLSLPrograms::ReconstructNormal_PS& Program);
void DrawCoarseAO(GLSLPrograms::CoarseAO_PS& Program);
void DrawReinterleavedAO(GLSLPrograms::ReinterleaveAO_PS& Program);
void DrawReinterleavedAO_PreBlur(GLSLPrograms::ReinterleaveAO_PS& Program);
void DrawBlurX(GLSLPrograms::BlurX_PS &Program);
void DrawBlurY(GLSLPrograms::BlurY_PS &Program);
GFSDK_SSAO_Status SetDataFlow(const GFSDK_SSAO_InputData_GL& InputData, const GFSDK_SSAO_Parameters& Parameters, const GFSDK_SSAO_Output_GL& Output);
GFSDK_SSAO_Status ValidateDataFlow();
GFSDK_SSAO_Status SetInputData(const GFSDK_SSAO_InputData_GL& InputData);
GFSDK_SSAO_Status SetInputDepths(const GFSDK_SSAO_InputDepthData_GL& DepthData);
GFSDK_SSAO_Status SetInputNormals(const GFSDK_SSAO_InputNormalData_GL& NormalData);
GFSDK_SSAO_Status SetAOParameters(const GFSDK_SSAO_Parameters& Parameters);
GFSDK_SSAO_Status SetOutput(const GFSDK_SSAO_Output_GL& Output);
void SetFullViewport()
{
m_GL.glViewport(
GLint(m_Viewports.FullRes.TopLeftX),
GLint(m_Viewports.FullRes.TopLeftY),
GLint(m_Viewports.FullRes.Width),
GLint(m_Viewports.FullRes.Height));
}
void SetQuarterViewport()
{
m_GL.glViewport(
GLint(m_Viewports.QuarterRes.TopLeftX),
GLint(m_Viewports.QuarterRes.TopLeftY),
GLint(m_Viewports.QuarterRes.Width),
GLint(m_Viewports.QuarterRes.Height));
}
void SetOutputBlendState(const GFSDK_SSAO_GLFunctions& GL)
{
if (m_Output.Blend.Mode == GFSDK_SSAO_OVERWRITE_RGB)
{
m_States.SetBlendStateDisabledPreserveAlpha(GL);
}
else if (m_Output.Blend.Mode == GFSDK_SSAO_MULTIPLY_RGB)
{
m_States.SetBlendStateMultiplyPreserveAlpha(GL);
}
else
{
m_States.SetCustomBlendState(GL, m_Output.Blend.CustomState);
}
}
GFSDK::SSAO::GL::InputDepthInfo m_InputDepth;
GFSDK::SSAO::GL::InputNormalInfo m_InputNormal;
GFSDK::SSAO::GL::GlobalConstantBuffer m_GlobalCB;
GFSDK::SSAO::GL::PerPassConstantBuffers m_PerPassCBs;
GFSDK::SSAO::GL::RenderTargets m_RTs;
GFSDK::SSAO::GL::States m_States;
GFSDK::SSAO::GL::OutputInfo m_Output;
GFSDK::SSAO::GL::Shaders m_Shaders;
GFSDK::SSAO::GL::VAO m_VAO;
GFSDK::SSAO::GL::AppState m_AppState;
GFSDK::SSAO::RenderOptions m_Options;
GFSDK::SSAO::Viewports m_Viewports;
GLuint m_FullResViewDepthTextureId;
GFSDK_SSAO_CustomHeap m_NewDelete;
GFSDK_SSAO_GLFunctions m_GL;
GFSDK::SSAO::BuildVersion m_BuildVersion;
#if ENABLE_RENDER_TIMES
GFSDK::SSAO::GL::TimestampQueries m_TimestampQueries;
#endif
};
} // namespace GL
} // namespace SSAO
} // namespace GFSDK
#endif // SUPPORT_GL
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