69b79c1a66
Under the terms of version 1.1, "once Covered Code has been published under a particular version of the License, Recipient may, for the duration of the License, continue to use it under the terms of that version, or choose to use such Covered Code under the terms of any subsequent version published by SGI." FreeB 2.0 license refers to "dates of first publication". They are here taken to be 1991-2000, as noted in the original license text: ** Original Code. The Original Code is: OpenGL Sample Implementation, ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. ** Copyright in any portions created by third parties is as indicated ** elsewhere herein. All Rights Reserved. Official FreeB 2.0 text: http://oss.sgi.com/projects/FreeB/SGIFreeSWLicB.2.0.pdf As always, this code has not been tested for conformance with the OpenGL specification. OpenGL conformance testing is available from http://khronos.org/ and is required for use of the OpenGL logo in product advertising and promotion.
552 lines
15 KiB
C
552 lines
15 KiB
C
/*
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* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
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* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice including the dates of first publication and
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* either this permission notice or a reference to
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* http://oss.sgi.com/projects/FreeB/
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* shall be included 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, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of Silicon Graphics, Inc.
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* shall not be used in advertising or otherwise to promote the sale, use or
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* other dealings in this Software without prior written authorization from
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* Silicon Graphics, Inc.
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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 <GL/glxtokens.h>
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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 <colormapst.h>
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#include "privates.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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static int glxScreenPrivateKeyIndex;
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static DevPrivateKey glxScreenPrivateKey = &glxScreenPrivateKeyIndex;
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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 __APPLE__
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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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/*
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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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__GLXscreen *pGlxScreen = glxGetScreen(screenInfo.screens[screen]);
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pGlxScreen->hyperpipeFuncs = funcs;
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}
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void __glXSwapBarrierInit(int screen, __GLXSwapBarrierExtensionFuncs *funcs)
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{
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__GLXscreen *pGlxScreen = glxGetScreen(screenInfo.screens[screen]);
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pGlxScreen->swapBarrierFuncs = funcs;
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}
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static Bool
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glxCloseScreen (int index, ScreenPtr pScreen)
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{
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__GLXscreen *pGlxScreen = glxGetScreen(pScreen);
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pScreen->CloseScreen = pGlxScreen->CloseScreen;
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pGlxScreen->destroy(pGlxScreen);
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return pScreen->CloseScreen(index, pScreen);
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}
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__GLXscreen *
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glxGetScreen(ScreenPtr pScreen)
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{
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return dixLookupPrivate(&pScreen->devPrivates, glxScreenPrivateKey);
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}
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void GlxSetVisualConfigs(int nconfigs,
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__GLXvisualConfig *configs, void **privates)
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{
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/* We keep this stub around for the DDX drivers that still
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* call it. */
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}
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GLint glxConvertToXVisualType(int visualType)
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{
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static const int x_visual_types[] = {
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TrueColor, DirectColor,
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PseudoColor, StaticColor,
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GrayScale, StaticGray
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};
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return ( (unsigned) (visualType - GLX_TRUE_COLOR) < 6 )
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? x_visual_types[ visualType - GLX_TRUE_COLOR ] : -1;
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}
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static void
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filterOutNativeConfigs(__GLXscreen *pGlxScreen)
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{
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__GLXconfig *m, *next, **last;
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ScreenPtr pScreen = pGlxScreen->pScreen;
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int i, depth;
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last = &pGlxScreen->fbconfigs;
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for (m = pGlxScreen->fbconfigs; m != NULL; m = next) {
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next = m->next;
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depth = m->redBits + m->blueBits + m->greenBits;
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for (i = 0; i < pScreen->numVisuals; i++) {
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if (pScreen->visuals[i].nplanes == depth) {
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*last = m;
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last = &m->next;
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break;
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}
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}
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}
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*last = NULL;
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}
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static XID
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findVisualForConfig(ScreenPtr pScreen, __GLXconfig *m)
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{
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int i;
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for (i = 0; i < pScreen->numVisuals; i++) {
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if (glxConvertToXVisualType(m->visualType) == pScreen->visuals[i].class)
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return pScreen->visuals[i].vid;
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}
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return 0;
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}
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/* This code inspired by composite/compinit.c. We could move this to
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* mi/ and share it with composite.*/
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static VisualPtr
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AddScreenVisuals(ScreenPtr pScreen, int count, int d)
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{
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XID *installedCmaps, *vids, vid;
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int numInstalledCmaps, numVisuals, i, j;
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VisualPtr visuals;
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ColormapPtr installedCmap;
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DepthPtr depth;
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depth = NULL;
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for (i = 0; i < pScreen->numDepths; i++) {
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if (pScreen->allowedDepths[i].depth == d) {
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depth = &pScreen->allowedDepths[i];
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break;
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}
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}
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if (depth == NULL)
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return NULL;
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/* Find the installed colormaps */
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installedCmaps = xalloc (pScreen->maxInstalledCmaps * sizeof (XID));
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if (!installedCmaps)
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return NULL;
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numInstalledCmaps = pScreen->ListInstalledColormaps(pScreen, installedCmaps);
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/* realloc the visual array to fit the new one in place */
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numVisuals = pScreen->numVisuals;
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visuals = xrealloc(pScreen->visuals, (numVisuals + count) * sizeof(VisualRec));
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if (!visuals) {
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xfree(installedCmaps);
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return NULL;
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}
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vids = xrealloc(depth->vids, (depth->numVids + count) * sizeof(XID));
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if (vids == NULL) {
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xfree(installedCmaps);
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xfree(visuals);
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return NULL;
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}
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/*
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* Fix up any existing installed colormaps -- we'll assume that
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* the only ones created so far have been installed. If this
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* isn't true, we'll have to walk the resource database looking
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* for all colormaps.
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*/
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for (i = 0; i < numInstalledCmaps; i++) {
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installedCmap = LookupIDByType (installedCmaps[i], RT_COLORMAP);
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if (!installedCmap)
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continue;
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j = installedCmap->pVisual - pScreen->visuals;
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installedCmap->pVisual = &visuals[j];
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}
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xfree(installedCmaps);
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for (i = 0; i < count; i++) {
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vid = FakeClientID(0);
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visuals[pScreen->numVisuals + i].vid = vid;
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vids[depth->numVids + i] = vid;
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}
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pScreen->visuals = visuals;
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pScreen->numVisuals += count;
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depth->vids = vids;
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depth->numVids += count;
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/* Return a pointer to the first of the added visuals. */
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return pScreen->visuals + pScreen->numVisuals - count;
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}
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static int
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findFirstSet(unsigned int v)
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{
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int i;
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for (i = 0; i < 32; i++)
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if (v & (1 << i))
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return i;
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return -1;
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}
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static void
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initGlxVisual(VisualPtr visual, __GLXconfig *config)
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{
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int maxBits;
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maxBits = max(config->redBits, max(config->greenBits, config->blueBits));
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config->visualID = visual->vid;
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visual->class = glxConvertToXVisualType(config->visualType);
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visual->bitsPerRGBValue = maxBits;
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visual->ColormapEntries = 1 << maxBits;
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visual->nplanes = config->redBits + config->greenBits + config->blueBits;
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visual->redMask = config->redMask;
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visual->greenMask = config->greenMask;
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visual->blueMask = config->blueMask;
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visual->offsetRed = findFirstSet(config->redMask);
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visual->offsetGreen = findFirstSet(config->greenMask);
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visual->offsetBlue = findFirstSet(config->blueMask);
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}
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typedef struct {
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GLboolean doubleBuffer;
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GLboolean depthBuffer;
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GLboolean stencilBuffer;
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} FBConfigTemplateRec, *FBConfigTemplatePtr;
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static __GLXconfig *
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pickFBConfig(__GLXscreen *pGlxScreen, FBConfigTemplatePtr template, int class)
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{
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__GLXconfig *config;
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for (config = pGlxScreen->fbconfigs; config != NULL; config = config->next) {
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if (config->visualRating != GLX_NONE)
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continue;
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if (glxConvertToXVisualType(config->visualType) != class)
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continue;
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if ((config->doubleBufferMode > 0) != template->doubleBuffer)
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continue;
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if ((config->depthBits > 0) != template->depthBuffer)
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continue;
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if ((config->stencilBits > 0) != template->stencilBuffer)
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continue;
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return config;
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}
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return NULL;
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}
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static void
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addMinimalSet(__GLXscreen *pGlxScreen)
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{
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__GLXconfig *config;
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VisualPtr visuals;
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int i, j;
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FBConfigTemplateRec best = { GL_TRUE, GL_TRUE, GL_TRUE };
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FBConfigTemplateRec good = { GL_TRUE, GL_TRUE, GL_FALSE };
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FBConfigTemplateRec minimal = { GL_FALSE, GL_FALSE, GL_FALSE };
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pGlxScreen->visuals = xcalloc(pGlxScreen->pScreen->numVisuals,
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sizeof (__GLXconfig *));
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if (pGlxScreen->visuals == NULL) {
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ErrorF("Failed to allocate for minimal set of GLX visuals\n");
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return;
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}
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visuals = pGlxScreen->pScreen->visuals;
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for (i = 0, j = 0; i < pGlxScreen->pScreen->numVisuals; i++) {
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if (visuals[i].nplanes == 32)
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config = pickFBConfig(pGlxScreen, &minimal, visuals[i].class);
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else {
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config = pickFBConfig(pGlxScreen, &best, visuals[i].class);
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if (config == NULL)
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config = pickFBConfig(pGlxScreen, &good, visuals[i].class);
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}
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if (config == NULL)
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config = pGlxScreen->fbconfigs;
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if (config == NULL)
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continue;
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pGlxScreen->visuals[j] = config;
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config->visualID = visuals[i].vid;
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j++;
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}
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pGlxScreen->numVisuals = j;
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}
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static void
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addTypicalSet(__GLXscreen *pGlxScreen)
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{
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addMinimalSet(pGlxScreen);
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}
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static void
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addFullSet(__GLXscreen *pGlxScreen)
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{
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__GLXconfig *config;
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VisualPtr visuals;
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int i, depth;
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pGlxScreen->visuals =
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xcalloc(pGlxScreen->numFBConfigs, sizeof (__GLXconfig *));
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if (pGlxScreen->visuals == NULL) {
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ErrorF("Failed to allocate for full set of GLX visuals\n");
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return;
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}
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config = pGlxScreen->fbconfigs;
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depth = config->redBits + config->greenBits + config->blueBits;
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visuals = AddScreenVisuals(pGlxScreen->pScreen, pGlxScreen->numFBConfigs, depth);
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if (visuals == NULL) {
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xfree(pGlxScreen->visuals);
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return;
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}
|
|
|
|
pGlxScreen->numVisuals = pGlxScreen->numFBConfigs;
|
|
for (i = 0, config = pGlxScreen->fbconfigs; config; config = config->next, i++) {
|
|
pGlxScreen->visuals[i] = config;
|
|
initGlxVisual(&visuals[i], config);
|
|
}
|
|
}
|
|
|
|
static int glxVisualConfig = GLX_ALL_VISUALS;
|
|
|
|
void GlxSetVisualConfig(int config)
|
|
{
|
|
glxVisualConfig = config;
|
|
}
|
|
|
|
void __glXScreenInit(__GLXscreen *pGlxScreen, ScreenPtr pScreen)
|
|
{
|
|
__GLXconfig *m;
|
|
int i;
|
|
|
|
pGlxScreen->pScreen = pScreen;
|
|
pGlxScreen->GLextensions = xstrdup(GLServerExtensions);
|
|
pGlxScreen->GLXvendor = xstrdup(GLXServerVendorName);
|
|
pGlxScreen->GLXversion = xstrdup(GLXServerVersion);
|
|
pGlxScreen->GLXextensions = xstrdup(GLXServerExtensions);
|
|
|
|
pGlxScreen->CloseScreen = pScreen->CloseScreen;
|
|
pScreen->CloseScreen = glxCloseScreen;
|
|
|
|
filterOutNativeConfigs(pGlxScreen);
|
|
|
|
i = 0;
|
|
for (m = pGlxScreen->fbconfigs; m != NULL; m = m->next) {
|
|
m->fbconfigID = FakeClientID(0);
|
|
m->visualID = findVisualForConfig(pScreen, m);
|
|
i++;
|
|
}
|
|
pGlxScreen->numFBConfigs = i;
|
|
|
|
/* Select a subset of fbconfigs that we send to the client when it
|
|
* asks for the glx visuals. All the fbconfigs here have a valid
|
|
* value for visual ID and each visual ID is only present once.
|
|
* This runs before composite adds its extra visual so we have to
|
|
* remember the number of visuals here.*/
|
|
|
|
switch (glxVisualConfig) {
|
|
case GLX_MINIMAL_VISUALS:
|
|
addMinimalSet(pGlxScreen);
|
|
break;
|
|
case GLX_TYPICAL_VISUALS:
|
|
addTypicalSet(pGlxScreen);
|
|
break;
|
|
case GLX_ALL_VISUALS:
|
|
addFullSet(pGlxScreen);
|
|
break;
|
|
}
|
|
|
|
dixSetPrivate(&pScreen->devPrivates, glxScreenPrivateKey, pGlxScreen);
|
|
}
|
|
|
|
void __glXScreenDestroy(__GLXscreen *screen)
|
|
{
|
|
xfree(screen->GLXvendor);
|
|
xfree(screen->GLXversion);
|
|
xfree(screen->GLXextensions);
|
|
xfree(screen->GLextensions);
|
|
}
|