forked from 0ad/0ad
Ykkrosh
1706363bab
Also delete some unused declarations, and rename is_playing to snd_is_playing. This was SVN commit r7813.
113 lines
3.2 KiB
C++
113 lines
3.2 KiB
C++
/* Copyright (c) 2010 Wildfire Games
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* load and link together shaders; provides hotload support.
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*/
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#ifndef INCLUDED_OGL_SHADER
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#define INCLUDED_OGL_SHADER
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#include "lib/res/handle.h"
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#include "lib/file/vfs/vfs.h"
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#include "lib/ogl.h"
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namespace ERR
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{
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const LibError SHDR_CREATE = -120200;
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const LibError SHDR_COMPILE = -120201;
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const LibError SHDR_NO_SHADER = -120202;
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const LibError SHDR_LINK = -120203;
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const LibError SHDR_NO_PROGRAM = -120204;
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}
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/*
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Encapsulate shader objects into handles, which transparently enables sharing
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of shader source files between programs as well as reloading shaders at
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runtime.
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NOTE: Only use functions form this module after verifying that the required
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extensions are available, or all bets are off.
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*/
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/**
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* Create, load and compile a shader object.
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*
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* @param vfs
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* @param pathname Location of the file containing the shader's source code.
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* @param type Type e.g. GL_VERTEX_SHADER_ARB.
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**/
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Handle ogl_shader_load(const PIVFS& vfs, const VfsPath& pathname, GLenum type);
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/**
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* Free all resources associated with the given handle
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* (subject to reference counting).
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**/
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void ogl_shader_free(Handle& h);
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/**
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* Attach a shader to the given OpenGL program.
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**/
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LibError ogl_shader_attach(GLhandleARB program, Handle& h);
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/*
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Encapsulate program objects into handles.
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*/
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/**
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* Load a program object.
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*
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* @param vfs
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* @param pathname XML file describing the program.
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*
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* note: Shader objects are loaded and attached automatically.
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**/
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Handle ogl_program_load(const PIVFS& vfs, const VfsPath& pathname);
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/**
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* Free all resources associated with the given program handle.
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* (subject to reference counting).
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**/
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void ogl_program_free(Handle& h);
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/**
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* Activate the program (glUseProgramObjectARB).
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*
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* @param h may be 0, in which case program objects are disabled.
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**/
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LibError ogl_program_use(Handle h);
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/**
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* Query uniform information
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**/
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GLint ogl_program_get_uniform_location(Handle h, const char* name);
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/**
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* Query vertex attribute information
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**/
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GLint ogl_program_get_attrib_location(Handle h, const char* name);
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#endif // INCLUDED_OGL_SHADER
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