mirror of
https://gitlab.freedesktop.org/xorg/xserver.git
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b9fdfa1534
Drop GLcore dependency from glx module.
Work around double destroy case and add DRIUnlockedCallback() function.
New files, lots of code coming from GL/mesa/X/xf86glx.c and the libGL
loader code.
259 lines
8.4 KiB
C
259 lines
8.4 KiB
C
/* $XFree86: xc/programs/Xserver/GL/glx/glxscreens.c,v 1.14 2004/02/09 23:46:31 alanh Exp $ */
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/*
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** License Applicability. Except to the extent portions of this file are
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** made subject to an alternative license as permitted in the SGI Free
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** Software License B, Version 1.1 (the "License"), the contents of this
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** file are subject only to the provisions of the License. You may not use
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** this file except in compliance with the License. You may obtain a copy
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** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
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** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
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**
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** http://oss.sgi.com/projects/FreeB
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**
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** Note that, as provided in the License, the Software is distributed on an
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** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
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** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
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** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
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** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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**
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** Original Code. The Original Code is: OpenGL Sample Implementation,
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** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
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** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
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** Copyright in any portions created by third parties is as indicated
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** elsewhere herein. All Rights Reserved.
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**
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** Additional Notice Provisions: The application programming interfaces
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** established by SGI in conjunction with the Original Code are The
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** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
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** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
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** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
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** Window System(R) (Version 1.3), released October 19, 1998. This software
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** was created using the OpenGL(R) version 1.2.1 Sample Implementation
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** published by SGI, but has not been independently verified as being
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** compliant with the OpenGL(R) version 1.2.1 Specification.
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**
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#ifdef IN_MODULE
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#include <xf86_ansic.h>
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#else
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#include <string.h>
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#include <signal.h>
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#endif
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#include <windowstr.h>
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#include "glxserver.h"
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#include "glxvisuals.h"
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#include "glxutil.h"
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#include "glxext.h"
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#include "glxloader.h"
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const char GLServerVersion[] = "1.2";
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static const char GLServerExtensions[] =
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"GL_ARB_depth_texture "
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"GL_ARB_imaging "
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"GL_ARB_multitexture "
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"GL_ARB_point_parameters "
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"GL_ARB_point_sprite "
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"GL_ARB_shadow "
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"GL_ARB_shadow_ambient "
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"GL_ARB_texture_border_clamp "
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"GL_ARB_texture_cube_map "
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"GL_ARB_texture_env_add "
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"GL_ARB_texture_env_combine "
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"GL_ARB_texture_env_crossbar "
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"GL_ARB_texture_env_dot3 "
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"GL_ARB_texture_mirrored_repeat "
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"GL_ARB_transpose_matrix "
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"GL_ARB_window_pos "
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"GL_EXT_abgr "
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"GL_EXT_bgra "
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"GL_EXT_blend_color "
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"GL_EXT_blend_func_separate "
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"GL_EXT_blend_logic_op "
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"GL_EXT_blend_minmax "
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"GL_EXT_blend_subtract "
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"GL_EXT_clip_volume_hint "
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"GL_EXT_copy_texture "
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"GL_EXT_draw_range_elements "
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"GL_EXT_fog_coord "
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"GL_EXT_multi_draw_arrays "
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"GL_EXT_packed_pixels "
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"GL_EXT_polygon_offset "
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"GL_EXT_rescale_normal "
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"GL_EXT_secondary_color "
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"GL_EXT_separate_specular_color "
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"GL_EXT_shadow_funcs "
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"GL_EXT_stencil_two_side "
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"GL_EXT_stencil_wrap "
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"GL_EXT_subtexture "
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"GL_EXT_texture "
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"GL_EXT_texture3D "
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"GL_EXT_texture_edge_clamp "
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"GL_EXT_texture_env_add "
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"GL_EXT_texture_env_combine "
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"GL_EXT_texture_env_dot3 "
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"GL_EXT_texture_lod "
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"GL_EXT_texture_lod_bias "
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"GL_EXT_texture_object "
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"GL_EXT_texture_rectangle "
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"GL_EXT_vertex_array "
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"GL_APPLE_packed_pixels "
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"GL_ATI_texture_mirror_once "
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"GL_ATI_texture_env_combine3 "
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"GL_HP_occlusion_test "
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"GL_IBM_texture_mirrored_repeat "
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"GL_MESA_pack_invert "
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"GL_MESA_ycbcr_texture "
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"GL_NV_blend_square "
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"GL_NV_point_sprite "
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"GL_NV_texgen_reflection "
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"GL_NV_texture_rectangle "
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"GL_SGIS_generate_mipmap "
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"GL_SGIS_texture_border_clamp "
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"GL_SGIS_texture_edge_clamp "
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"GL_SGIS_texture_lod "
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"GL_SGIX_depth_texture "
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"GL_SGIX_shadow "
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"GL_SGIX_shadow_ambient "
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;
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/*
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** We have made the simplifying assuption that the same extensions are
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** supported across all screens in a multi-screen system.
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*/
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static char GLXServerVendorName[] = "SGI";
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static char GLXServerVersion[] = "1.2";
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static char GLXServerExtensions[] =
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"GLX_ARB_multisample "
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"GLX_EXT_visual_info "
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"GLX_EXT_visual_rating "
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"GLX_EXT_import_context "
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"GLX_OML_swap_method "
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"GLX_SGI_make_current_read "
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#ifndef __DARWIN__
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"GLX_SGIS_multisample "
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"GLX_SGIX_hyperpipe "
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"GLX_SGIX_swap_barrier "
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#endif
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"GLX_SGIX_fbconfig "
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;
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__GLXscreenInfo *__glXActiveScreens;
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GLint __glXNumActiveScreens;
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__GLXSwapBarrierExtensionFuncs *__glXSwapBarrierFuncs = NULL;
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static int __glXNumSwapBarrierFuncs = 0;
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__GLXHyperpipeExtensionFuncs *__glXHyperpipeFuncs = NULL;
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static int __glXNumHyperpipeFuncs = 0;
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RESTYPE __glXDrawableRes;
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__GLXscreenInfo *__glXgetActiveScreen(int num) {
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return &__glXActiveScreens[num];
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}
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/*
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** Destroy routine that gets called when a drawable is freed. A drawable
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** contains the ancillary buffers needed for rendering.
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*/
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static Bool DrawableGone(__GLXdrawablePrivate *glxPriv, XID xid)
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{
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__glXUnrefDrawablePrivate(glxPriv);
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return True;
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}
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/*
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* If your DDX driver wants to register support for swap barriers or hyperpipe
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* topology, it should call __glXHyperpipeInit() or __glXSwapBarrierInit()
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* with a dispatch table of functions to handle the requests. In the XFree86
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* DDX, for example, you would call these near the bottom of the driver's
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* ScreenInit method, after DRI has been initialized.
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*
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* This should be replaced with a better method when we teach the server how
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* to load DRI drivers.
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*/
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void __glXHyperpipeInit(int screen, __GLXHyperpipeExtensionFuncs *funcs)
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{
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if (__glXNumHyperpipeFuncs < screen + 1) {
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__glXHyperpipeFuncs = __glXRealloc(__glXHyperpipeFuncs,
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(screen+1) * sizeof(__GLXHyperpipeExtensionFuncs));
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__glXNumHyperpipeFuncs = screen + 1;
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}
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__glXHyperpipeFuncs[screen].queryHyperpipeNetworkFunc =
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*funcs->queryHyperpipeNetworkFunc;
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__glXHyperpipeFuncs[screen].queryHyperpipeConfigFunc =
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*funcs->queryHyperpipeConfigFunc;
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__glXHyperpipeFuncs[screen].destroyHyperpipeConfigFunc =
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*funcs->destroyHyperpipeConfigFunc;
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__glXHyperpipeFuncs[screen].hyperpipeConfigFunc =
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*funcs->hyperpipeConfigFunc;
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}
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void __glXSwapBarrierInit(int screen, __GLXSwapBarrierExtensionFuncs *funcs)
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{
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if (__glXNumSwapBarrierFuncs < screen + 1) {
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__glXSwapBarrierFuncs = __glXRealloc(__glXSwapBarrierFuncs,
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(screen+1) * sizeof(__GLXSwapBarrierExtensionFuncs));
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__glXNumSwapBarrierFuncs = screen + 1;
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}
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__glXSwapBarrierFuncs[screen].bindSwapBarrierFunc =
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funcs->bindSwapBarrierFunc;
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__glXSwapBarrierFuncs[screen].queryMaxSwapBarriersFunc =
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funcs->queryMaxSwapBarriersFunc;
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}
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void __glXScreenInit(GLint numscreens)
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{
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GLint i;
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/*
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** This alloc has to work or else the server might as well core dump.
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*/
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__glXActiveScreens =
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(__GLXscreenInfo *) __glXMalloc(sizeof(__GLXscreenInfo) * numscreens);
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for (i = 0; i < numscreens; i++) {
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__glXVisualsInitScreen(&__glXActiveScreens[i], i);
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__glXActiveScreens[i].GLextensions = __glXStrdup(GLServerExtensions);
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__glXActiveScreens[i].GLXvendor = __glXStrdup(GLXServerVendorName);
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__glXActiveScreens[i].GLXversion = __glXStrdup(GLXServerVersion);
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__glXActiveScreens[i].GLXextensions = __glXStrdup(GLXServerExtensions);
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__glXDrawableRes = CreateNewResourceType((DeleteType)DrawableGone);
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__glXLoaderInitScreen(i);
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}
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__glXNumActiveScreens = numscreens;
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}
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void __glXScreenReset(void)
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{
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int i;
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for (i = 0; i < __glXNumActiveScreens; i++) {
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__glXFree(__glXActiveScreens[i].GLXvendor);
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__glXFree(__glXActiveScreens[i].GLXversion);
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__glXFree(__glXActiveScreens[i].GLXextensions);
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__glXFree(__glXActiveScreens[i].GLextensions);
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}
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xfree(__glXActiveScreens);
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xfree(__glXHyperpipeFuncs);
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xfree(__glXSwapBarrierFuncs);
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__glXNumHyperpipeFuncs = 0;
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__glXNumSwapBarrierFuncs = 0;
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__glXHyperpipeFuncs = NULL;
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__glXSwapBarrierFuncs = NULL;
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__glXActiveScreens = NULL;
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__glXNumActiveScreens = 0;
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}
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