369 lines
11 KiB
C
369 lines
11 KiB
C
/*
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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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#include <string.h>
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#include <windowstr.h>
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#include <os.h>
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#include "glxserver.h"
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#include "glxutil.h"
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#include "glxext.h"
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const char GLServerVersion[] = "1.4";
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static const char GLServerExtensions[] =
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"GL_ARB_depth_texture "
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"GL_ARB_draw_buffers "
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"GL_ARB_fragment_program "
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"GL_ARB_fragment_program_shadow "
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"GL_ARB_imaging "
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"GL_ARB_multisample "
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"GL_ARB_multitexture "
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"GL_ARB_occlusion_query "
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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_compression "
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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_texture_non_power_of_two "
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"GL_ARB_transpose_matrix "
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"GL_ARB_vertex_program "
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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_equation_separate "
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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_framebuffer_object "
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"GL_EXT_multi_draw_arrays "
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"GL_EXT_packed_pixels "
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"GL_EXT_paletted_texture "
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"GL_EXT_point_parameters "
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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_shared_texture_palette "
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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_compression_dxt1 "
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"GL_EXT_texture_compression_s3tc "
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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_filter_ansiotropic "
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"GL_EXT_texture_lod "
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"GL_EXT_texture_lod_bias "
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"GL_EXT_texture_mirror_clamp "
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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_3DFX_texture_compression_FXT1 "
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"GL_APPLE_packed_pixels "
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"GL_ATI_draw_buffers "
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"GL_ATI_texture_env_combine3 "
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"GL_ATI_texture_mirror_once "
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"GL_HP_occlusion_test "
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"GL_IBM_texture_mirrored_repeat "
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"GL_INGR_blend_func_separate "
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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_depth_clamp "
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"GL_NV_fog_distance "
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"GL_NV_fragment_program "
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"GL_NV_fragment_program_option "
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"GL_NV_fragment_program2 "
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"GL_NV_light_max_exponent "
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"GL_NV_multisample_filter_hint "
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"GL_NV_point_sprite "
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"GL_NV_texgen_reflection "
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"GL_NV_texture_compression_vtc "
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"GL_NV_texture_env_combine4 "
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"GL_NV_texture_expand_normal "
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"GL_NV_texture_rectangle "
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"GL_NV_vertex_program "
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"GL_NV_vertex_program1_1 "
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"GL_NV_vertex_program2 "
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"GL_NV_vertex_program2_option "
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"GL_NV_vertex_program3 "
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"GL_OES_compressed_paletted_texture "
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"GL_SGI_color_matrix "
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"GL_SGI_color_table "
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"GL_SGIS_generate_mipmap "
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"GL_SGIS_multisample "
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"GL_SGIS_point_parameters "
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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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"GL_SUN_slice_accum "
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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_EXT_texture_from_pixmap "
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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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"GLX_MESA_copy_sub_buffer "
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;
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__GLXscreen **__glXActiveScreens;
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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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__GLXscreen *__glXgetActiveScreen(int num) {
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return __glXActiveScreens[num];
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}
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/*
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** This hook gets called when a window moves or changes size.
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*/
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static Bool PositionWindow(WindowPtr pWin, int x, int y)
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{
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ScreenPtr pScreen;
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__GLXcontext *glxc;
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__GLXdrawable *glxPriv;
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Bool ret;
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/*
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** Call wrapped position window routine
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*/
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pScreen = pWin->drawable.pScreen;
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pScreen->PositionWindow =
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__glXActiveScreens[pScreen->myNum]->WrappedPositionWindow;
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ret = (*pScreen->PositionWindow)(pWin, x, y);
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pScreen->PositionWindow = PositionWindow;
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/*
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** Tell all contexts rendering into this window that the window size
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** has changed.
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*/
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glxPriv = (__GLXdrawable *) LookupIDByType(pWin->drawable.id,
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__glXDrawableRes);
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if (glxPriv == NULL) {
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/*
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** This window is not being used by the OpenGL.
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*/
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return ret;
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}
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/*
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** resize the drawable
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*/
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/* first change the drawable size */
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if (glxPriv->resize(glxPriv) == GL_FALSE) {
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/* resize failed! */
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/* XXX: what can we possibly do here? */
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ret = False;
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}
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/* mark contexts as needing resize */
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for (glxc = glxPriv->drawGlxc; glxc; glxc = glxc->nextDrawPriv) {
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glxc->pendingState |= __GLX_PENDING_RESIZE;
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}
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for (glxc = glxPriv->readGlxc; glxc; glxc = glxc->nextReadPriv) {
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glxc->pendingState |= __GLX_PENDING_RESIZE;
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}
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return ret;
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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 = xrealloc(__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 = xrealloc(__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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static __GLXprovider *__glXProviderStack;
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void GlxPushProvider(__GLXprovider *provider)
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{
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provider->next = __glXProviderStack;
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__glXProviderStack = provider;
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}
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void __glXScreenInit(__GLXscreen *screen, ScreenPtr pScreen)
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{
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screen->pScreen = pScreen;
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screen->GLextensions = xstrdup(GLServerExtensions);
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screen->GLXvendor = xstrdup(GLXServerVendorName);
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screen->GLXversion = xstrdup(GLXServerVersion);
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screen->GLXextensions = xstrdup(GLXServerExtensions);
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screen->WrappedPositionWindow = pScreen->PositionWindow;
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pScreen->PositionWindow = PositionWindow;
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__glXScreenInitVisuals(screen);
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}
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void
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__glXScreenDestroy(__GLXscreen *screen)
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{
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xfree(screen->GLXvendor);
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xfree(screen->GLXversion);
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xfree(screen->GLXextensions);
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xfree(screen->GLextensions);
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}
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void __glXInitScreens(void)
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{
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GLint i;
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ScreenPtr pScreen;
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__GLXprovider *p;
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size_t size;
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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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size = screenInfo.numScreens * sizeof(__GLXscreen *);
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__glXActiveScreens = xalloc(size);
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memset(__glXActiveScreens, 0, size);
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for (i = 0; i < screenInfo.numScreens; i++) {
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pScreen = screenInfo.screens[i];
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for (p = __glXProviderStack; p != NULL; p = p->next) {
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__glXActiveScreens[i] = p->screenProbe(pScreen);
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if (__glXActiveScreens[i] != NULL) {
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LogMessage(X_INFO,
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"GLX: Initialized %s GL provider for screen %d\n",
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p->name, i);
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break;
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}
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}
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}
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}
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void __glXResetScreens(void)
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{
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int i;
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for (i = 0; i < screenInfo.numScreens; i++)
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if (__glXActiveScreens[i])
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__glXActiveScreens[i]->destroy(__glXActiveScreens[i]);
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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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}
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