Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5563 | serge | 1 | /************************************************************************** |
| 2 | * |
||
| 3 | * Copyright 2007 Tungsten Graphics, Inc., Bismarck, ND., USA |
||
| 4 | * All Rights Reserved. |
||
| 5 | * |
||
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
||
| 7 | * copy of this software and associated documentation files (the |
||
| 8 | * "Software"), to deal in the Software without restriction, including |
||
| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
||
| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
||
| 11 | * permit persons to whom the Software is furnished to do so, subject to |
||
| 12 | * the following conditions: |
||
| 13 | * |
||
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
||
| 17 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
||
| 18 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
||
| 19 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
||
| 20 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
||
| 21 | * |
||
| 22 | * The above copyright notice and this permission notice (including the |
||
| 23 | * next paragraph) shall be included in all copies or substantial portions |
||
| 24 | * of the Software. |
||
| 25 | * |
||
| 26 | * |
||
| 27 | **************************************************************************/ |
||
| 28 | |||
| 29 | /* |
||
| 30 | * Authors: |
||
| 31 | * Keith Whitwell |
||
| 32 | */ |
||
| 33 | #include "pipe/p_compiler.h" |
||
| 34 | #include "util/u_debug.h" |
||
| 35 | #include "state_tracker/xlib_sw_winsys.h" |
||
| 36 | #include "xm_public.h" |
||
| 37 | |||
| 38 | #include "state_tracker/st_gl_api.h" |
||
| 39 | #include "target-helpers/inline_sw_helper.h" |
||
| 40 | #include "target-helpers/inline_debug_helper.h" |
||
| 41 | |||
| 42 | |||
| 43 | |||
| 44 | /* Helper function to build a subset of a driver stack consisting of |
||
| 45 | * one of the software rasterizers (llvmpipe, softpipe) and the |
||
| 46 | * xlib winsys. |
||
| 47 | */ |
||
| 48 | static struct pipe_screen * |
||
| 49 | swrast_xlib_create_screen( Display *display ) |
||
| 50 | { |
||
| 51 | struct sw_winsys *winsys; |
||
| 52 | struct pipe_screen *screen = NULL; |
||
| 53 | |||
| 54 | /* Create the underlying winsys, which performs presents to Xlib |
||
| 55 | * drawables: |
||
| 56 | */ |
||
| 57 | winsys = xlib_create_sw_winsys( display ); |
||
| 58 | if (winsys == NULL) |
||
| 59 | return NULL; |
||
| 60 | |||
| 61 | /* Create a software rasterizer on top of that winsys: |
||
| 62 | */ |
||
| 63 | screen = sw_screen_create( winsys ); |
||
| 64 | if (screen == NULL) |
||
| 65 | goto fail; |
||
| 66 | |||
| 67 | /* Inject any wrapping layers we want to here: |
||
| 68 | */ |
||
| 69 | return debug_screen_wrap( screen ); |
||
| 70 | |||
| 71 | fail: |
||
| 72 | if (winsys) |
||
| 73 | winsys->destroy( winsys ); |
||
| 74 | |||
| 75 | return NULL; |
||
| 76 | } |
||
| 77 | |||
| 78 | static struct xm_driver xlib_driver = |
||
| 79 | { |
||
| 80 | .create_pipe_screen = swrast_xlib_create_screen, |
||
| 81 | .create_st_api = st_gl_api_create, |
||
| 82 | }; |
||
| 83 | |||
| 84 | |||
| 85 | /* Build the rendering stack. |
||
| 86 | */ |
||
| 87 | static void _init( void ) __attribute__((constructor)); |
||
| 88 | static void _init( void ) |
||
| 89 | { |
||
| 90 | /* Initialize the xlib libgl code, pass in the winsys: |
||
| 91 | */ |
||
| 92 | xmesa_set_driver( &xlib_driver ); |
||
| 93 | } |
||
| 94 | |||
| 95 | |||
| 96 | /*********************************************************************** |
||
| 97 | * |
||
| 98 | * Butt-ugly hack to convince the linker not to throw away public GL |
||
| 99 | * symbols (they are all referenced from getprocaddress, I guess). |
||
| 100 | */ |
||
| 101 | extern void (*linker_foo(const unsigned char *procName))(); |
||
| 102 | extern void (*glXGetProcAddress(const unsigned char *procName))(); |
||
| 103 | |||
| 104 | extern void (*linker_foo(const unsigned char *procName))() |
||
| 105 | { |
||
| 106 | return glXGetProcAddress(procName); |
||
| 107 | } |
||
| 108 | |||
| 109 | |||
| 110 | /** |
||
| 111 | * When GLX_INDIRECT_RENDERING is defined, some symbols are missing in |
||
| 112 | * libglapi.a. We need to define them here. |
||
| 113 | */ |
||
| 114 | #ifdef GLX_INDIRECT_RENDERING |
||
| 115 | |||
| 116 | #define GL_GLEXT_PROTOTYPES |
||
| 117 | #include "main/glheader.h" |
||
| 118 | #include "glapi/glapi.h" |
||
| 119 | #include "glapi/glapitable.h" |
||
| 120 | |||
| 121 | #if defined(USE_MGL_NAMESPACE) |
||
| 122 | #define NAME(func) mgl##func |
||
| 123 | #else |
||
| 124 | #define NAME(func) gl##func |
||
| 125 | #endif |
||
| 126 | |||
| 127 | #define DISPATCH(FUNC, ARGS, MESSAGE) \ |
||
| 128 | GET_DISPATCH()->FUNC ARGS |
||
| 129 | |||
| 130 | #define RETURN_DISPATCH(FUNC, ARGS, MESSAGE) \ |
||
| 131 | return GET_DISPATCH()->FUNC ARGS |
||
| 132 | |||
| 133 | /* skip normal ones */ |
||
| 134 | #define _GLAPI_SKIP_NORMAL_ENTRY_POINTS |
||
| 135 | #include "glapi/glapitemp.h" |
||
| 136 | |||
| 137 | #endif /* GLX_INDIRECT_RENDERING */ |