forked from Mirrorlandia_minetest/irrlicht
59fc4401f1
The commit also establishes a precedent of leaving off the `virtual` keyword in overrides. Although not strictly necessary, I believe this is good for readability because it makes it clear it is an override and not a pure virtual function, and it helps keep line lengths shorter. We should move towards eliminating the macro altogether, but the definition has been left in with a note on deprecation so that in-progress work will not suffer merge conflicts.
98 lines
3.1 KiB
C++
98 lines
3.1 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt
|
|
// This file is part of the "Irrlicht Engine".
|
|
// For conditions of distribution and use, see copyright notice in irrlicht.h
|
|
|
|
#ifndef __C_OPENGL_SHADER_MATERIAL_RENDERER_H_INCLUDED__
|
|
#define __C_OPENGL_SHADER_MATERIAL_RENDERER_H_INCLUDED__
|
|
|
|
#include "IrrCompileConfig.h"
|
|
|
|
#ifdef _IRR_COMPILE_WITH_OPENGL_
|
|
|
|
#include "IMaterialRenderer.h"
|
|
|
|
#include "COpenGLCommon.h"
|
|
|
|
namespace irr
|
|
{
|
|
namespace video
|
|
{
|
|
|
|
class COpenGLDriver;
|
|
class IShaderConstantSetCallBack;
|
|
|
|
//! Class for using vertex and pixel shaders with OpenGL (asm not glsl!)
|
|
class COpenGLShaderMaterialRenderer : public IMaterialRenderer
|
|
{
|
|
public:
|
|
|
|
//! Constructor
|
|
COpenGLShaderMaterialRenderer(COpenGLDriver* driver,
|
|
s32& outMaterialTypeNr, const c8* vertexShaderProgram, const c8* pixelShaderProgram,
|
|
IShaderConstantSetCallBack* callback, E_MATERIAL_TYPE baseMaterial, s32 userData);
|
|
|
|
//! Destructor
|
|
virtual ~COpenGLShaderMaterialRenderer();
|
|
|
|
virtual void OnSetMaterial(const SMaterial& material, const SMaterial& lastMaterial,
|
|
bool resetAllRenderstates, IMaterialRendererServices* services) override;
|
|
|
|
bool OnRender(IMaterialRendererServices* service, E_VERTEX_TYPE vtxtype) override;
|
|
|
|
void OnUnsetMaterial() override;
|
|
|
|
//! Returns if the material is transparent.
|
|
bool isTransparent() const override;
|
|
|
|
//! Access the callback provided by the users when creating shader materials
|
|
IShaderConstantSetCallBack* getShaderConstantSetCallBack() const override
|
|
{
|
|
return CallBack;
|
|
}
|
|
|
|
protected:
|
|
|
|
//! constructor only for use by derived classes who want to
|
|
//! create a fall back material for example.
|
|
COpenGLShaderMaterialRenderer(COpenGLDriver* driver,
|
|
IShaderConstantSetCallBack* callback,
|
|
E_MATERIAL_TYPE baseMaterial, s32 userData=0);
|
|
|
|
// must not be called more than once!
|
|
void init(s32& outMaterialTypeNr, const c8* vertexShaderProgram,
|
|
const c8* pixelShaderProgram, E_VERTEX_TYPE type);
|
|
|
|
bool createPixelShader(const c8* pxsh);
|
|
bool createVertexShader(const c8* vtxsh);
|
|
bool checkError(const irr::c8* type);
|
|
|
|
COpenGLDriver* Driver;
|
|
IShaderConstantSetCallBack* CallBack;
|
|
|
|
// I didn't write this, but here's my understanding:
|
|
// Those flags seem to be exclusive so far (so could be an enum).
|
|
// Maybe the idea was to make them non-exclusive in future (basically having a shader-material)
|
|
// Actually currently there's not even any need to cache them (probably even slower than not doing so).
|
|
// They seem to be mostly for downward compatibility.
|
|
// I suppose the idea is to use SMaterial.BlendOperation + SMaterial.BlendFactor and a simple non-transparent type as base for more flexibility in the future.
|
|
// Note that SMaterial.BlendOperation + SMaterial.BlendFactor are in some drivers already evaluated before OnSetMaterial.
|
|
bool Alpha;
|
|
bool Blending;
|
|
bool FixedBlending;
|
|
bool AlphaTest;
|
|
|
|
GLuint VertexShader;
|
|
// We have 4 values here, [0] is the non-fog version, the other three are
|
|
// ARB_fog_linear, ARB_fog_exp, and ARB_fog_exp2 in that order
|
|
core::array<GLuint> PixelShader;
|
|
s32 UserData;
|
|
};
|
|
|
|
|
|
} // end namespace video
|
|
} // end namespace irr
|
|
|
|
#endif
|
|
#endif
|
|
|