/* $Id: extensions.c,v 1.9 1999/10/16 11:30:31 brianp Exp $ */ /* * Mesa 3-D graphics library * Version: 3.1 * * Copyright (C) 1999 Brian Paul All Rights Reserved. * * 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 * BRIAN PAUL 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. */ #include <stdlib.h> #include "context.h" #include "extensions.h" #include "simple_list.h" #include "types.h" #define MAX_EXT_NAMELEN 80 struct extension { struct extension *next, *prev; int enabled; char name[MAX_EXT_NAMELEN+1]; void (*notify)( GLcontext *, GLboolean ); }; static struct { int enabled; const char *name; } default_extensions[] = { { ALWAYS_ENABLED, "GL_EXT_blend_color" }, { DEFAULT_OFF, "ARB_imaging" }, { DEFAULT_ON, "GL_EXT_blend_minmax" }, { DEFAULT_ON, "GL_EXT_blend_logic_op" }, { DEFAULT_ON, "GL_EXT_blend_subtract" }, { DEFAULT_ON, "GL_EXT_paletted_texture" }, { DEFAULT_ON, "GL_EXT_point_parameters" }, { ALWAYS_ENABLED, "GL_EXT_polygon_offset" }, { ALWAYS_ENABLED, "GL_EXT_vertex_array" }, { ALWAYS_ENABLED, "GL_EXT_texture_object" }, { DEFAULT_ON, "GL_EXT_texture3D" }, { ALWAYS_ENABLED, "GL_MESA_window_pos" }, { ALWAYS_ENABLED, "GL_MESA_resize_buffers" }, { ALWAYS_ENABLED, "GL_EXT_shared_texture_palette" }, { ALWAYS_ENABLED, "GL_EXT_rescale_normal" }, { ALWAYS_ENABLED, "GL_EXT_abgr" }, { ALWAYS_ENABLED, "GL_SGIS_texture_edge_clamp" }, { ALWAYS_ENABLED, "GL_EXT_stencil_wrap" }, { DEFAULT_ON, "GL_INGR_blend_func_separate" }, { DEFAULT_ON, "GL_ARB_multitexture" }, { ALWAYS_ENABLED, "GL_NV_texgen_reflection" }, { DEFAULT_ON, "GL_PGI_misc_hints" }, { DEFAULT_ON, "GL_EXT_compiled_vertex_array" }, { DEFAULT_OFF, "GL_EXT_vertex_array_set" }, { DEFAULT_ON, "GL_EXT_clip_volume_hint" }, }; int gl_extensions_add( GLcontext *ctx, int state, const char *name, void (*notify)(void) ) { (void) notify; if (ctx->Extensions.ext_string == 0) { struct extension *t = MALLOC_STRUCT(extension); t->enabled = state; strncpy(t->name, name, MAX_EXT_NAMELEN); t->name[MAX_EXT_NAMELEN] = 0; t->notify = (void (*)(GLcontext *, GLboolean)) notify; insert_at_tail( ctx->Extensions.ext_list, t ); return 0; } return 1; } static int set_extension( GLcontext *ctx, const char *name, GLuint state ) { struct extension *i; foreach( i, ctx->Extensions.ext_list ) if (strncmp(i->name, name, MAX_EXT_NAMELEN) == 0) break; if (i == ctx->Extensions.ext_list) return 1; if (i->enabled && !(i->enabled & ALWAYS_ENABLED)) { if (i->notify) i->notify( ctx, state ); i->enabled = state; } return 0; } int gl_extensions_enable( GLcontext *ctx, const char *name ) { if (ctx->Extensions.ext_string == 0) return set_extension( ctx, name, 1 ); return 1; } int gl_extensions_disable( GLcontext *ctx, const char *name ) { if (ctx->Extensions.ext_string == 0) return set_extension( ctx, name, 0 ); return 1; } void gl_extensions_dtr( GLcontext *ctx ) { struct extension *i, *nexti; if (ctx->Extensions.ext_string) { FREE( ctx->Extensions.ext_string ); ctx->Extensions.ext_string = 0; } if (ctx->Extensions.ext_list) { foreach_s( i, nexti, ctx->Extensions.ext_list ) { remove_from_list( i ); FREE( i ); } FREE(ctx->Extensions.ext_list); ctx->Extensions.ext_list = 0; } } void gl_extensions_ctr( GLcontext *ctx ) { GLuint i; ctx->Extensions.ext_string = 0; ctx->Extensions.ext_list = MALLOC_STRUCT(extension); make_empty_list( ctx->Extensions.ext_list ); for (i = 0 ; i < Elements(default_extensions) ; i++) { gl_extensions_add( ctx, default_extensions[i].enabled, default_extensions[i].name, 0 ); } } const char *gl_extensions_get_string( GLcontext *ctx ) { if (ctx->Extensions.ext_string == 0) { struct extension *i; char *str; GLuint len = 0; foreach (i, ctx->Extensions.ext_list) if (i->enabled) len += strlen(i->name) + 1; if (len == 0) return ""; str = (char *)MALLOC(len * sizeof(char)); ctx->Extensions.ext_string = str; foreach (i, ctx->Extensions.ext_list) if (i->enabled) { strcpy(str, i->name); str += strlen(str); *str++ = ' '; } *(str-1) = 0; } return ctx->Extensions.ext_string; } /* * Return the address of an extension function. * This is meant to be called by glXGetProcAddress(), wglGetProcAddress(), * or similar function. * NOTE: this function could be optimized to binary search a sorted * list of function names. */ void (*gl_get_proc_address( const GLubyte *procName ))() { typedef void (*gl_function)(); struct proc { const char *name; gl_function address; }; static struct proc procTable[] = { /* OpenGL 1.1 functions */ { "glEnableClientState", (gl_function) glEnableClientState }, { "glDisableClientState", (gl_function) glDisableClientState }, { "glPushClientAttrib", (gl_function) glPushClientAttrib }, { "glPopClientAttrib", (gl_function) glPopClientAttrib }, { "glIndexub", (gl_function) glIndexub }, { "glIndexubv", (gl_function) glIndexubv }, { "glVertexPointer", (gl_function) glVertexPointer }, { "glNormalPointer", (gl_function) glNormalPointer }, { "glColorPointer", (gl_function) glColorPointer }, { "glIndexPointer", (gl_function) glIndexPointer }, { "glTexCoordPointer", (gl_function) glTexCoordPointer }, { "glEdgeFlagPointer", (gl_function) glEdgeFlagPointer }, { "glGetPointerv", (gl_function) glGetPointerv }, { "glArrayElement", (gl_function) glArrayElement }, { "glDrawArrays", (gl_function) glDrawArrays }, { "glDrawElements", (gl_function) glDrawElements }, { "glInterleavedArrays", (gl_function) glInterleavedArrays }, { "glGenTextures", (gl_function) glGenTextures }, { "glDeleteTextures", (gl_function) glDeleteTextures }, { "glBindTexture", (gl_function) glBindTexture }, { "glPrioritizeTextures", (gl_function) glPrioritizeTextures }, { "glAreTexturesResident", (gl_function) glAreTexturesResident }, { "glIsTexture", (gl_function) glIsTexture }, { "glTexSubImage1D", (gl_function) glTexSubImage1D }, { "glTexSubImage2D", (gl_function) glTexSubImage2D }, { "glCopyTexImage1D", (gl_function) glCopyTexImage1D }, { "glCopyTexImage2D", (gl_function) glCopyTexImage2D }, { "glCopyTexSubImage1D", (gl_function) glCopyTexSubImage1D }, { "glCopyTexSubImage2D", (gl_function) glCopyTexSubImage2D }, /* OpenGL 1.2 functions */ { "glDrawRangeElements", (gl_function) glDrawRangeElements }, { "glTexImage3D", (gl_function) glTexImage3D }, { "glTexSubImage3D", (gl_function) glTexSubImage3D }, { "glCopyTexSubImage3D", (gl_function) glCopyTexSubImage3D }, /* NOTE: 1.2 imaging subset functions not implemented in Mesa */ /* GL_EXT_blend_minmax */ { "glBlendEquationEXT", (gl_function) glBlendEquationEXT }, /* GL_EXT_blend_color */ { "glBlendColorEXT", (gl_function) glBlendColorEXT }, /* GL_EXT_polygon_offset */ { "glPolygonOffsetEXT", (gl_function) glPolygonOffsetEXT }, /* GL_EXT_vertex_arrays */ { "glVertexPointerEXT", (gl_function) glVertexPointerEXT }, { "glNormalPointerEXT", (gl_function) glNormalPointerEXT }, { "glColorPointerEXT", (gl_function) glColorPointerEXT }, { "glIndexPointerEXT", (gl_function) glIndexPointerEXT }, { "glTexCoordPointerEXT", (gl_function) glTexCoordPointerEXT }, { "glEdgeFlagPointerEXT", (gl_function) glEdgeFlagPointerEXT }, { "glGetPointervEXT", (gl_function) glGetPointervEXT }, { "glArrayElementEXT", (gl_function) glArrayElementEXT }, { "glDrawArraysEXT", (gl_function) glDrawArraysEXT }, /* GL_EXT_texture_object */ { "glGenTexturesEXT", (gl_function) glGenTexturesEXT }, { "glDeleteTexturesEXT", (gl_function) glDeleteTexturesEXT }, { "glBindTextureEXT", (gl_function) glBindTextureEXT }, { "glPrioritizeTexturesEXT", (gl_function) glPrioritizeTexturesEXT }, { "glAreTexturesResidentEXT", (gl_function) glAreTexturesResidentEXT }, { "glIsTextureEXT", (gl_function) glIsTextureEXT }, /* GL_EXT_texture3D */ { "glTexImage3DEXT", (gl_function) glTexImage3DEXT }, { "glTexSubImage3DEXT", (gl_function) glTexSubImage3DEXT }, { "glCopyTexSubImage3DEXT", (gl_function) glCopyTexSubImage3DEXT }, /* GL_EXT_color_table */ { "glColorTableEXT", (gl_function) glColorTableEXT }, { "glColorSubTableEXT", (gl_function) glColorSubTableEXT }, { "glGetColorTableEXT", (gl_function) glGetColorTableEXT }, { "glGetColorTableParameterfvEXT", (gl_function) glGetColorTableParameterfvEXT }, { "glGetColorTableParameterivEXT", (gl_function) glGetColorTableParameterivEXT }, /* GL_ARB_multitexture */ { "glActiveTextureARB", (gl_function) glActiveTextureARB }, { "glClientActiveTextureARB", (gl_function) glClientActiveTextureARB }, { "glMultiTexCoord1dARB", (gl_function) glMultiTexCoord1dARB }, { "glMultiTexCoord1dvARB", (gl_function) glMultiTexCoord1dvARB }, { "glMultiTexCoord1fARB", (gl_function) glMultiTexCoord1fARB }, { "glMultiTexCoord1fvARB", (gl_function) glMultiTexCoord1fvARB }, { "glMultiTexCoord1iARB", (gl_function) glMultiTexCoord1iARB }, { "glMultiTexCoord1ivARB", (gl_function) glMultiTexCoord1ivARB }, { "glMultiTexCoord1sARB", (gl_function) glMultiTexCoord1sARB }, { "glMultiTexCoord1svARB", (gl_function) glMultiTexCoord1svARB }, { "glMultiTexCoord2dARB", (gl_function) glMultiTexCoord2dARB }, { "glMultiTexCoord2dvARB", (gl_function) glMultiTexCoord2dvARB }, { "glMultiTexCoord2fARB", (gl_function) glMultiTexCoord2fARB }, { "glMultiTexCoord2fvARB", (gl_function) glMultiTexCoord2fvARB }, { "glMultiTexCoord2iARB", (gl_function) glMultiTexCoord2iARB }, { "glMultiTexCoord2ivARB", (gl_function) glMultiTexCoord2ivARB }, { "glMultiTexCoord2sARB", (gl_function) glMultiTexCoord2sARB }, { "glMultiTexCoord2svARB", (gl_function) glMultiTexCoord2svARB }, { "glMultiTexCoord3dARB", (gl_function) glMultiTexCoord3dARB }, { "glMultiTexCoord3dvARB", (gl_function) glMultiTexCoord3dvARB }, { "glMultiTexCoord3fARB", (gl_function) glMultiTexCoord3fARB }, { "glMultiTexCoord3fvARB", (gl_function) glMultiTexCoord3fvARB }, { "glMultiTexCoord3iARB", (gl_function) glMultiTexCoord3iARB }, { "glMultiTexCoord3ivARB", (gl_function) glMultiTexCoord3ivARB }, { "glMultiTexCoord3sARB", (gl_function) glMultiTexCoord3sARB }, { "glMultiTexCoord3svARB", (gl_function) glMultiTexCoord3svARB }, { "glMultiTexCoord4dARB", (gl_function) glMultiTexCoord4dARB }, { "glMultiTexCoord4dvARB", (gl_function) glMultiTexCoord4dvARB }, { "glMultiTexCoord4fARB", (gl_function) glMultiTexCoord4fARB }, { "glMultiTexCoord4fvARB", (gl_function) glMultiTexCoord4fvARB }, { "glMultiTexCoord4iARB", (gl_function) glMultiTexCoord4iARB }, { "glMultiTexCoord4ivARB", (gl_function) glMultiTexCoord4ivARB }, { "glMultiTexCoord4sARB", (gl_function) glMultiTexCoord4sARB }, { "glMultiTexCoord4svARB", (gl_function) glMultiTexCoord4svARB }, /* GL_EXT_point_parameters */ { "glPointParameterfEXT", (gl_function) glPointParameterfEXT }, { "glPointParameterfvEXT", (gl_function) glPointParameterfvEXT }, /* GL_INGR_blend_func_separate */ { "glBlendFuncSeparateINGR", (gl_function) glBlendFuncSeparateINGR }, /* GL_MESA_window_pos */ { "glWindowPos2iMESA", (gl_function) glWindowPos2iMESA }, { "glWindowPos2sMESA", (gl_function) glWindowPos2sMESA }, { "glWindowPos2fMESA", (gl_function) glWindowPos2fMESA }, { "glWindowPos2dMESA", (gl_function) glWindowPos2dMESA }, { "glWindowPos2ivMESA", (gl_function) glWindowPos2ivMESA }, { "glWindowPos2svMESA", (gl_function) glWindowPos2svMESA }, { "glWindowPos2fvMESA", (gl_function) glWindowPos2fvMESA }, { "glWindowPos2dvMESA", (gl_function) glWindowPos2dvMESA }, { "glWindowPos3iMESA", (gl_function) glWindowPos3iMESA }, { "glWindowPos3sMESA", (gl_function) glWindowPos3sMESA }, { "glWindowPos3fMESA", (gl_function) glWindowPos3fMESA }, { "glWindowPos3dMESA", (gl_function) glWindowPos3dMESA }, { "glWindowPos3ivMESA", (gl_function) glWindowPos3ivMESA }, { "glWindowPos3svMESA", (gl_function) glWindowPos3svMESA }, { "glWindowPos3fvMESA", (gl_function) glWindowPos3fvMESA }, { "glWindowPos3dvMESA", (gl_function) glWindowPos3dvMESA }, { "glWindowPos4iMESA", (gl_function) glWindowPos4iMESA }, { "glWindowPos4sMESA", (gl_function) glWindowPos4sMESA }, { "glWindowPos4fMESA", (gl_function) glWindowPos4fMESA }, { "glWindowPos4dMESA", (gl_function) glWindowPos4dMESA }, { "glWindowPos4ivMESA", (gl_function) glWindowPos4ivMESA }, { "glWindowPos4svMESA", (gl_function) glWindowPos4svMESA }, { "glWindowPos4fvMESA", (gl_function) glWindowPos4fvMESA }, { "glWindowPos4dvMESA", (gl_function) glWindowPos4dvMESA }, /* GL_MESA_resize_buffers */ { "glResizeBuffersMESA", (gl_function) glResizeBuffersMESA }, /* GL_EXT_compiled_vertex_array */ { "glLockArraysEXT", (gl_function) glLockArraysEXT }, { "glUnlockArraysEXT", (gl_function) glUnlockArraysEXT }, { NULL, NULL } /* end of list token */ }; GLuint i; for (i = 0; procTable[i].address; i++) { if (strcmp((const char *) procName, procTable[i].name) == 0) return procTable[i].address; } return NULL; }