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/****************************************************************************
**
** Copyright (C) 2008-2012 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#pragma once
#ifndef QT3DS_RENDERER_IMPL_LAYER_RENDER_DATA_H
#define QT3DS_RENDERER_IMPL_LAYER_RENDER_DATA_H
#include "Qt3DSRender.h"
#include "Qt3DSRendererImplLayerRenderPreparationData.h"
#include "Qt3DSRenderResourceBufferObjects.h"
namespace qt3ds {
namespace render {
struct AdvancedBlendModes
{
enum Enum {
None = 0,
Overlay,
ColorBurn,
ColorDodge
};
};
struct QT3DS_AUTOTEST_EXPORT SLayerRenderData : public SLayerRenderPreparationData
{
// Layers can be rendered offscreen for many reasons; effects, progressive aa,
// or just because a flag forces it. If they are rendered offscreen we can then
// cache the result so we don't render the layer again if it isn't dirty.
CResourceTexture2D m_LayerTexture;
CResourceTexture2D m_TemporalAATexture;
// Sometimes we need to render our depth buffer to a depth texture.
CResourceTexture2D m_LayerDepthTexture;
CResourceTexture2D m_LayerPrepassDepthTexture;
CResourceTexture2D m_LayerWidgetTexture;
CResourceTexture2D m_LayerSsaoTexture;
// if we render multisampled we need resolve buffers
CResourceTexture2D m_LayerMultisampleTexture;
CResourceTexture2D m_LayerMultisamplePrepassDepthTexture;
CResourceTexture2D m_LayerMultisampleWidgetTexture;
// the texture contains the render result inclusive post effects
NVRenderTexture2D *m_LayerCachedTexture;
NVRenderTexture2D *m_AdvancedBlendDrawTexture;
NVRenderTexture2D *m_AdvancedBlendBlendTexture;
qt3ds::render::NVRenderFrameBuffer *m_AdvancedModeDrawFB;
qt3ds::render::NVRenderFrameBuffer *m_AdvancedModeBlendFB;
// True if this layer was rendered offscreen.
// If this object has no value then this layer wasn't rendered at all.
SOffscreenRendererEnvironment m_LastOffscreenRenderEnvironment;
// GPU profiler per layer
NVScopedRefCounted<IRenderProfiler> m_LayerProfilerGpu;
SCamera m_SceneCamera;
QT3DSVec2 m_SceneDimensions;
// ProgressiveAA algorithm details.
QT3DSU32 m_ProgressiveAAPassIndex;
// Increments every frame regardless to provide appropriate jittering
QT3DSU32 m_TemporalAAPassIndex;
// Ensures we don't stop on an in-between frame; we will run two frames after the dirty flag
// is clear.
QT3DSU32 m_NonDirtyTemporalAAPassIndex;
QT3DSF32 m_TextScale;
volatile QT3DSI32 mRefCount;
Option<QT3DSVec3> m_BoundingRectColor;
NVRenderTextureFormats::Enum m_DepthBufferFormat;
QSize m_previousDimensions;
SLayerRenderData(SLayer &inLayer, Qt3DSRendererImpl &inRenderer);
virtual ~SLayerRenderData();
void PrepareForRender();
// Internal Call
void PrepareForRender(const QSize &inViewportDimensions) override;
NVRenderTextureFormats::Enum GetDepthBufferFormat();
NVRenderFrameBufferAttachments::Enum
GetFramebufferDepthAttachmentFormat(NVRenderTextureFormats::Enum depthFormat);
// Render this layer assuming viewport and RT are setup. Just renders exactly this item
// no effects.
void RenderDepthPass(bool inEnableTransparentDepthWrite = false);
void RenderAoPass();
void RenderFakeDepthMapPass(NVRenderTexture2D *theDepthTex,
NVRenderTextureCube *theDepthCube);
void RenderShadowMapPass(CResourceFrameBuffer *theFB);
void RenderShadowCubeBlurPass(CResourceFrameBuffer *theFB, NVRenderTextureCube *target0,
NVRenderTextureCube *target1, QT3DSF32 filterSz, QT3DSF32 clipFar);
void RenderShadowMapBlurPass(CResourceFrameBuffer *theFB, NVRenderTexture2D *target0,
NVRenderTexture2D *target1, QT3DSF32 filterSz, QT3DSF32 clipFar);
void Render(CResourceFrameBuffer *theFB = NULL);
void ResetForFrame() override;
void CreateGpuProfiler();
void StartProfiling(CRegisteredString &nameID, bool sync);
void EndProfiling(CRegisteredString &nameID);
void StartProfiling(const char *nameID, bool sync);
void EndProfiling(const char *nameID);
void AddVertexCount(QT3DSU32 count);
void RenderToViewport();
// Render this layer's data to a texture. Required if we have any effects,
// prog AA, or if forced.
void RenderToTexture();
void ApplyLayerPostEffects();
void RunnableRenderToViewport(qt3ds::render::NVRenderFrameBuffer *theFB);
void AddLayerRenderStep();
void RenderRenderWidgets();
#ifdef ADVANCED_BLEND_SW_FALLBACK
void BlendAdvancedEquationSwFallback(NVRenderTexture2D *drawTexture,
NVRenderTexture2D *m_LayerTexture,
AdvancedBlendModes::Enum blendMode);
#endif
// test method to render this layer to a given view projection without running the entire
// layer setup system. This assumes the client has setup the viewport, scissor, and render
// target
// the way they want them.
void PrepareAndRender(const QT3DSMat44 &inViewProjection);
SOffscreenRendererEnvironment CreateOffscreenRenderEnvironment() override;
IRenderTask &CreateRenderToTextureRunnable() override;
void addRef();
void release();
protected:
// Used for both the normal passes and the depth pass.
// When doing the depth pass, we disable blending completely because it does not really make
// sense
// to write blend equations into
void RunRenderPass(TRenderRenderableFunction renderFn, bool inEnableBlending,
bool inEnableDepthWrite, bool inEnableTransparentDepthWrite,
QT3DSU32 indexLight, const SCamera &inCamera,
CResourceFrameBuffer *theFB = NULL);
#ifdef ADVANCED_BLEND_SW_FALLBACK
//Functions for advanced blending mode fallback
void SetupDrawFB(bool depthEnabled);
void BlendAdvancedToFB(DefaultMaterialBlendMode::Enum blendMode, bool depthEnabled,
CResourceFrameBuffer *theFB);
#endif
};
}
}
#endif
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