From 22e6fb7056dcc888e9ccf768fefb6c073077a3b5 Mon Sep 17 00:00:00 2001 From: Kahrl Date: Mon, 19 Mar 2012 02:59:12 +0100 Subject: ShaderSource and silly example shaders --- src/shader.h | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 src/shader.h (limited to 'src/shader.h') diff --git a/src/shader.h b/src/shader.h new file mode 100644 index 000000000..d6a425311 --- /dev/null +++ b/src/shader.h @@ -0,0 +1,89 @@ +/* +Minetest-c55 +Copyright (C) 2012 celeron55, Perttu Ahola +Copyright (C) 2012 Kahrl + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef SHADER_HEADER +#define SHADER_HEADER + +#include "irrlichttypes_extrabloated.h" +#include "threads.h" +#include + +class IGameDef; + +/* + shader.{h,cpp}: Shader handling stuff. +*/ + +/* + Gets the path to a shader by first checking if the file + name_of_shader/filename + exists in shader_path and if not, using the data path. + + If not found, returns "". + + Utilizes a thread-safe cache. +*/ +std::string getShaderPath(const std::string &name_of_shader, + const std::string &filename); + +struct ShaderInfo +{ + std::string name; + video::E_MATERIAL_TYPE material; + + ShaderInfo(): name(""), material(video::EMT_SOLID) {} +}; + +/* + ShaderSource creates and caches shaders. +*/ + +class IShaderSource +{ +public: + IShaderSource(){} + virtual ~IShaderSource(){} + virtual u32 getShaderId(const std::string &name){return 0;} + virtual u32 getShaderIdDirect(const std::string &name){return 0;} + virtual std::string getShaderName(u32 id){return "";} + virtual ShaderInfo getShader(u32 id){return ShaderInfo();} + virtual ShaderInfo getShader(const std::string &name){return ShaderInfo();} +}; + +class IWritableShaderSource : public IShaderSource +{ +public: + IWritableShaderSource(){} + virtual ~IWritableShaderSource(){} + virtual u32 getShaderId(const std::string &name){return 0;} + virtual u32 getShaderIdDirect(const std::string &name){return 0;} + virtual std::string getShaderName(u32 id){return "";} + virtual ShaderInfo getShader(u32 id){return ShaderInfo();} + virtual ShaderInfo getShader(const std::string &name){return ShaderInfo();} + + virtual void processQueue()=0; + virtual void insertSourceShader(const std::string &name_of_shader, + const std::string &filename, const std::string &program)=0; + virtual void rebuildShaders()=0; +}; + +IWritableShaderSource* createShaderSource(IrrlichtDevice *device); + +#endif -- cgit v1.2.3