1 /************************************************************************** 2 * 3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. 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 above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 #include <windows.h> 29 30 #include "glapi/glapi.h" 31 #include "util/u_debug.h" 32 #include "util/u_math.h" 33 #include "util/u_memory.h" 34 #include "pipe/p_screen.h" 35 36 #include "stw_device.h" 37 #include "stw_winsys.h" 38 #include "stw_pixelformat.h" 39 #include "stw_icd.h" 40 #include "stw_tls.h" 41 #include "stw_framebuffer.h" 42 #include "stw_st.h" 43 44 45 struct stw_device *stw_dev = NULL; 46 47 static int 48 stw_get_param(struct st_manager *smapi, 49 enum st_manager_param param) 50 { 51 switch (param) { 52 case ST_MANAGER_BROKEN_INVALIDATE: 53 /* 54 * Force framebuffer validation on glViewport. 55 * 56 * Certain applications, like Rhinoceros 4, uses glReadPixels 57 * exclusively (never uses SwapBuffers), so framebuffers never get 58 * resized unless we check on glViewport. 59 */ 60 return 1; 61 default: 62 return 0; 63 } 64 } 65 66 boolean 67 stw_init(const struct stw_winsys *stw_winsys) 68 { 69 static struct stw_device stw_dev_storage; 70 struct pipe_screen *screen; 71 72 debug_printf("%s\n", __FUNCTION__); 73 74 assert(!stw_dev); 75 76 stw_tls_init(); 77 78 stw_dev = &stw_dev_storage; 79 memset(stw_dev, 0, sizeof(*stw_dev)); 80 81 #ifdef DEBUG 82 stw_dev->memdbg_no = debug_memory_begin(); 83 #endif 84 85 stw_dev->stw_winsys = stw_winsys; 86 87 stw_dev->stapi = stw_st_create_api(); 88 stw_dev->smapi = CALLOC_STRUCT(st_manager); 89 if (!stw_dev->stapi || !stw_dev->smapi) 90 goto error1; 91 92 screen = stw_winsys->create_screen(); 93 if(!screen) 94 goto error1; 95 96 if(stw_winsys->get_adapter_luid) 97 stw_winsys->get_adapter_luid(screen, &stw_dev->AdapterLuid); 98 99 stw_dev->smapi->screen = screen; 100 stw_dev->smapi->get_param = stw_get_param; 101 stw_dev->screen = screen; 102 103 stw_dev->max_2d_levels = 104 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS); 105 stw_dev->max_2d_length = 1 << (stw_dev->max_2d_levels - 1); 106 107 pipe_mutex_init( stw_dev->ctx_mutex ); 108 pipe_mutex_init( stw_dev->fb_mutex ); 109 110 stw_dev->ctx_table = handle_table_create(); 111 if (!stw_dev->ctx_table) { 112 goto error1; 113 } 114 115 stw_pixelformat_init(); 116 117 return TRUE; 118 119 error1: 120 if (stw_dev->smapi) 121 FREE(stw_dev->smapi); 122 if (stw_dev->stapi) 123 stw_dev->stapi->destroy(stw_dev->stapi); 124 125 stw_dev = NULL; 126 return FALSE; 127 } 128 129 130 boolean 131 stw_init_thread(void) 132 { 133 return stw_tls_init_thread(); 134 } 135 136 137 void 138 stw_cleanup_thread(void) 139 { 140 stw_tls_cleanup_thread(); 141 } 142 143 144 void 145 stw_cleanup(void) 146 { 147 DHGLRC dhglrc; 148 149 debug_printf("%s\n", __FUNCTION__); 150 151 if (!stw_dev) 152 return; 153 154 /* 155 * Abort cleanup if there are still active contexts. In some situations 156 * this DLL may be unloaded before the DLL that is using GL contexts is. 157 */ 158 pipe_mutex_lock( stw_dev->ctx_mutex ); 159 dhglrc = handle_table_get_first_handle(stw_dev->ctx_table); 160 pipe_mutex_unlock( stw_dev->ctx_mutex ); 161 if (dhglrc) { 162 debug_printf("%s: contexts still active -- cleanup aborted\n", __FUNCTION__); 163 stw_dev = NULL; 164 return; 165 } 166 167 handle_table_destroy(stw_dev->ctx_table); 168 169 stw_framebuffer_cleanup(); 170 171 pipe_mutex_destroy( stw_dev->fb_mutex ); 172 pipe_mutex_destroy( stw_dev->ctx_mutex ); 173 174 FREE(stw_dev->smapi); 175 stw_dev->stapi->destroy(stw_dev->stapi); 176 177 stw_dev->screen->destroy(stw_dev->screen); 178 179 /* glapi is statically linked: we can call the local destroy function. */ 180 #ifdef _GLAPI_NO_EXPORTS 181 _glapi_destroy_multithread(); 182 #endif 183 184 #ifdef DEBUG 185 debug_memory_end(stw_dev->memdbg_no); 186 #endif 187 188 stw_tls_cleanup(); 189 190 stw_dev = NULL; 191 } 192 193 194 struct stw_context * 195 stw_lookup_context_locked( DHGLRC dhglrc ) 196 { 197 if (dhglrc == 0) 198 return NULL; 199 200 if (stw_dev == NULL) 201 return NULL; 202 203 return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc); 204 } 205 206 207 void APIENTRY 208 DrvSetCallbackProcs( 209 INT nProcs, 210 PROC *pProcs ) 211 { 212 size_t size; 213 214 if (stw_dev == NULL) 215 return; 216 217 size = MIN2(nProcs * sizeof *pProcs, sizeof stw_dev->callbacks); 218 memcpy(&stw_dev->callbacks, pProcs, size); 219 220 return; 221 } 222 223 224 BOOL APIENTRY 225 DrvValidateVersion( 226 ULONG ulVersion ) 227 { 228 /* TODO: get the expected version from the winsys */ 229 return ulVersion == 1; 230 } 231
