src/gallium/state_trackers/wgl/stw_device.c

   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/glthread.h"
  31 #include "util/u_debug.h"
  32 #include "util/u_math.h"
  33 #include "pipe/p_screen.h"
  34 #include "state_tracker/st_public.h"
  35
  36 #ifdef DEBUG
  37 #include "trace/tr_screen.h"
  38 #include "trace/tr_texture.h"
  39 #endif
  40
  41 #include "stw_device.h"
  42 #include "stw_winsys.h"
  43 #include "stw_pixelformat.h"
  44 #include "stw_icd.h"
  45 #include "stw_tls.h"
  46 #include "stw_framebuffer.h"
  47
  48 #ifdef WIN32_THREADS
  49 extern _glthread_Mutex OneTimeLock;
  50 extern void FreeAllTSD(void);
  51 #endif
  52
  53
  54 struct stw_device *stw_dev = NULL;
  55
  56
  57 /**
  58  * XXX: Dispatch pipe_screen::flush_front_buffer to our
  59  * stw_winsys::flush_front_buffer.
  60  */
  61 static void
  62 stw_flush_frontbuffer(struct pipe_screen *screen,
  63                      struct pipe_surface *surface,
  64                      void *context_private )
  65 {
  66    HDC hdc = (HDC)context_private;
  67    struct stw_framebuffer *fb;
  68
  69    fb = stw_framebuffer_from_hdc( hdc );
  70    if (!fb) {
  71       /* fb can be NULL if window was destroyed already */
  72       return;
  73    }
  74
  75 #if DEBUG
  76    {
  77       /* ensure that a random surface was not passed to us */
  78       struct pipe_surface *surface2;
  79
  80       if(!st_get_framebuffer_surface( fb->stfb, ST_SURFACE_FRONT_LEFT, &surface2 ))
  81          assert(0);
  82       else
  83          assert(surface2 == surface);
  84    }
  85 #endif
  86
  87    stw_framebuffer_present_locked(hdc, fb, ST_SURFACE_FRONT_LEFT);
  88 }
  89
  90
  91 boolean
  92 stw_init(const struct stw_winsys *stw_winsys)
  93 {
  94    static struct stw_device stw_dev_storage;
  95    struct pipe_screen *screen;
  96
  97    debug_printf("%s\n", __FUNCTION__);
  98
  99    assert(!stw_dev);
 100
 101    stw_tls_init();
 102
 103    stw_dev = &stw_dev_storage;
 104    memset(stw_dev, 0, sizeof(*stw_dev));
 105
 106 #ifdef DEBUG
 107    stw_dev->memdbg_no = debug_memory_begin();
 108 #endif
 109
 110    stw_dev->stw_winsys = stw_winsys;
 111
 112 #ifdef WIN32_THREADS
 113    _glthread_INIT_MUTEX(OneTimeLock);
 114 #endif
 115
 116    screen = stw_winsys->create_screen();
 117    if(!screen)
 118       goto error1;
 119
 120    if(stw_winsys->get_adapter_luid)
 121       stw_winsys->get_adapter_luid(screen, &stw_dev->AdapterLuid);
 122
 123 #ifdef DEBUG
 124    stw_dev->screen = trace_screen_create(screen);
 125    stw_dev->trace_running = stw_dev->screen != screen ? TRUE : FALSE;
 126 #else
 127    stw_dev->screen = screen;
 128 #endif
 129
 130    stw_dev->screen->flush_frontbuffer = &stw_flush_frontbuffer;
 131
 132    pipe_mutex_init( stw_dev->ctx_mutex );
 133    pipe_mutex_init( stw_dev->fb_mutex );
 134
 135    stw_dev->ctx_table = handle_table_create();
 136    if (!stw_dev->ctx_table) {
 137       goto error1;
 138    }
 139
 140    stw_pixelformat_init();
 141
 142    return TRUE;
 143
 144 error1:
 145    stw_dev = NULL;
 146    return FALSE;
 147 }
 148
 149
 150 boolean
 151 stw_init_thread(void)
 152 {
 153    return stw_tls_init_thread();
 154 }
 155
 156
 157 void
 158 stw_cleanup_thread(void)
 159 {
 160    stw_tls_cleanup_thread();
 161 }
 162
 163
 164 void
 165 stw_cleanup(void)
 166 {
 167    unsigned i;
 168
 169    debug_printf("%s\n", __FUNCTION__);
 170
 171    if (!stw_dev)
 172       return;
 173
 174    pipe_mutex_lock( stw_dev->ctx_mutex );
 175    {
 176       /* Ensure all contexts are destroyed */
 177       i = handle_table_get_first_handle(stw_dev->ctx_table);
 178       while (i) {
 179          DrvDeleteContext(i);
 180          i = handle_table_get_next_handle(stw_dev->ctx_table, i);
 181       }
 182       handle_table_destroy(stw_dev->ctx_table);
 183    }
 184    pipe_mutex_unlock( stw_dev->ctx_mutex );
 185
 186    stw_framebuffer_cleanup();
 187
 188    pipe_mutex_destroy( stw_dev->fb_mutex );
 189    pipe_mutex_destroy( stw_dev->ctx_mutex );
 190
 191    stw_dev->screen->destroy(stw_dev->screen);
 192
 193 #ifdef WIN32_THREADS
 194    _glthread_DESTROY_MUTEX(OneTimeLock);
 195    FreeAllTSD();
 196 #endif
 197
 198 #ifdef DEBUG
 199    debug_memory_end(stw_dev->memdbg_no);
 200 #endif
 201
 202    stw_tls_cleanup();
 203
 204    stw_dev = NULL;
 205 }
 206
 207
 208 struct stw_context *
 209 stw_lookup_context_locked( DHGLRC dhglrc )
 210 {
 211    if (dhglrc == 0)
 212       return NULL;
 213
 214    if (stw_dev == NULL)
 215       return NULL;
 216
 217    return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
 218 }
 219
 220
 221 void APIENTRY
 222 DrvSetCallbackProcs(
 223    INT nProcs,
 224    PROC *pProcs )
 225 {
 226    size_t size;
 227
 228    if (stw_dev == NULL)
 229       return;
 230
 231    size = MIN2(nProcs * sizeof *pProcs, sizeof stw_dev->callbacks);
 232    memcpy(&stw_dev->callbacks, pProcs, size);
 233
 234    return;
 235 }
 236
 237
 238 BOOL APIENTRY
 239 DrvValidateVersion(
 240    ULONG ulVersion )
 241 {
 242    /* TODO: get the expected version from the winsys */
 243    return ulVersion == 1;
 244 }