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/*
Copyright (c) 2017 DIVIDE-Studio
Copyright (c) 2009 Ionut Cava

This file is part of DIVIDE Framework.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software
and associated documentation files (the "Software"), to deal in the Software
without restriction,
including without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE
OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

*/

#ifndef _RENDER_DRAW_COMMANDS_H_
#define _RENDER_DRAW_COMMANDS_H_

#include "TextureData.h"
#include "GenericDrawCommand.h"
#include "Platform/Video/Buffers/RenderTarget/Headers/RenderTarget.h"

namespace Divide {

enum class PushConstantType : U8 {
    BOOL = 0,
    INT,
    UINT,
    FLOAT,
    DOUBLE,
    BVEC2,
    BVEC3,
    BVEC4,
    IVEC2,
    IVEC3,
    IVEC4,
    UVEC2,
    UVEC3,
    UVEC4,
    VEC2,
    VEC3,
    VEC4,
    DVEC2,
    DVEC3,
    DVEC4,
    MAT2,
    MAT3,
    //MAT_N_x_M
};
    
struct PushConstant {
    I32              _binding;
    PushConstantType _type;
    AnyParam         _value;
};

class ShaderBuffer;
struct ShaderBufferBindCmd {
    explicit ShaderBufferBindCmd(ShaderBuffer* buffer,
                                 ShaderBufferLocation binding,
                                 vec2<U32> dataRange)
        : _buffer(buffer),
          _binding(binding),
          _dataRange(dataRange)
    {
    }

    ShaderBuffer* _buffer;
    ShaderBufferLocation _binding;
    vec2<U32> _dataRange;
};

struct ShaderBufferBinding {
    ShaderBufferLocation _slot;
    ShaderBuffer* _buffer;
    vec2<U32>    _range;

    ShaderBufferBinding()
        : ShaderBufferBinding(ShaderBufferLocation::COUNT,
            nullptr,
            vec2<U32>(0, 0))
    {
    }

    ShaderBufferBinding(ShaderBufferLocation slot,
        ShaderBuffer* buffer,
        const vec2<U32>& range)
        : _slot(slot),
        _buffer(buffer),
        _range(range)
    {
    }

    inline void set(const ShaderBufferBinding& other) {
        set(other._slot, other._buffer, other._range);
    }

    inline void set(ShaderBufferLocation slot,
                    ShaderBuffer* buffer,
                    const vec2<U32>& range) {
        _slot = slot;
        _buffer = buffer;
        _range.set(range);
    }
};

struct ClipPlaneList {
    ClipPlaneList(U32 size, const Plane<F32>& defaultValue)
        : _planes(size, defaultValue),
          _active(size, false)
    {
    }

    void resize(U32 size, const Plane<F32>& defaultValue) {
        _planes.resize(size, defaultValue);
        _active.resize(size, false);
    }

    PlaneList _planes;
    vectorImpl<bool> _active;
};

typedef vectorImpl<ShaderBufferBinding> ShaderBufferList;

typedef std::array<IndirectDrawCommand, Config::MAX_VISIBLE_NODES> DrawCommandList;

struct RenderSubPassCmd {
    U8 _targetWriteLevel = 0;
    TextureDataContainer _textures;
    GenericDrawCommands  _commands;
    vectorImpl<vec4<I32>> _viewports;
    vectorImpl<PushConstant> _pushConstants;
    vectorImpl<ShaderBufferBindCmd> _shaderBuffers;

    inline void pushConstant(PushConstantType type, I32 binding, const AnyParam& value) {
        _pushConstants.emplace_back(PushConstant{ binding, type, value });
    }
};

typedef vectorImpl<RenderSubPassCmd> RenderSubPassCmds;

struct RenderPassCmd {
    RenderTargetID _renderTarget;
    RTDrawDescriptor _renderTargetDescriptor;
    RenderSubPassCmds _subPassCmds;
};

typedef vectorImpl<RenderPassCmd> CommandBuffer;

}; //namespace Divide

#endif //_RENDER_DRAW_COMMANDS_H_

Commits for Divide-Framework/trunk/Source Code/Platform/Video/Headers/RenderDrawCommands.h

Diff revisions: vs.
Revision Author Commited Message
912 Diff Diff IonutCava picture IonutCava Sun 02 Jul, 2017 23:42:39 +0000

[Ionut]
- Add experimental Weighted Blended Order Independed Transparency (ref: http://casual-effects.blogspot.co.uk/2015/03/implemented-weighted-blended-order.html)
— Add per drawbuffer blend
— All translucent renderbin items go via the new OIT 2-step rendering: accumulation and composition
- Make sure we have proper blend enabled for text rendering
- Add a primitive form of PushConstants (unused yet. Emulated via Uniform calls)
- Fix bug with XMLParser not using case insensitive key lookups

895 Diff Diff IonutCava picture IonutCava Wed 21 Jun, 2017 21:10:26 +0000

[IonutCava]
- Reorder and cleanup OpenGL backend a bit.
- Small code cleanup
- Some small profile-guided optimizations

836 Diff Diff IonutCava picture IonutCava Fri 27 Jan, 2017 14:59:56 +0000

[IonutCava]
- Update copyright notice

778 Diff Diff IonutCava picture IonutCava Mon 10 Oct, 2016 15:18:32 +0000

[IonutCava]
- Rendering abstraction cleanup

777 Diff Diff IonutCava picture IonutCava Fri 07 Oct, 2016 16:14:48 +0000

[IonutCava]
- Continue to implement CommandBuffer / RenderPass / RenderSubPass system.
— Rendering artefacts are still present.

776 IonutCava picture IonutCava Thu 06 Oct, 2016 15:57:56 +0000

[IonutCava]
- Improve the CommandBuffer system to include the notion of a RenderPass /RenderSubPass with output render target info stored in them (not used yet)