src/gallium/frontends/wgl/stw_device.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
   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 VMWARE 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 "gldrv.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
  67 /** Get the refresh rate for the monitor, in Hz */
  68 static int
  69 get_refresh_rate(void)
  70 {
  71    DEVMODE devModes;
  72
  73    if (EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &devModes)) {
  74       /* clamp the value, just in case we get garbage */
  75       return CLAMP(devModes.dmDisplayFrequency, 30, 120);
  76    }
  77    else {
  78       /* reasonable default */
  79       return 60;
  80    }
  81 }
  82
  83 static bool
  84 init_screen(const struct stw_winsys *stw_winsys)
  85 {
  86    struct pipe_screen *screen = stw_winsys->create_screen();
  87    if (!screen)
  88       return false;
  89
  90    if (stw_winsys->get_adapter_luid)
  91       stw_winsys->get_adapter_luid(screen, &stw_dev->AdapterLuid);
  92
  93    stw_dev->smapi->screen = screen;
  94    stw_dev->screen = screen;
  95
  96    stw_dev->max_2d_length = screen->get_param(screen,
  97                                               PIPE_CAP_MAX_TEXTURE_2D_SIZE);
  98    return true;
  99 }
 100
 101 boolean
 102 stw_init(const struct stw_winsys *stw_winsys)
 103 {
 104    static struct stw_device stw_dev_storage;
 105
 106    debug_disable_error_message_boxes();
 107
 108    assert(!stw_dev);
 109
 110    stw_tls_init();
 111
 112    stw_dev = &stw_dev_storage;
 113    memset(stw_dev, 0, sizeof(*stw_dev));
 114
 115    stw_dev->stw_winsys = stw_winsys;
 116
 117    stw_dev->stapi = stw_st_create_api();
 118    stw_dev->smapi = CALLOC_STRUCT(st_manager);
 119    if (!stw_dev->stapi || !stw_dev->smapi)
 120       goto error1;
 121
 122    stw_dev->smapi->get_param = stw_get_param;
 123
 124    InitializeCriticalSection(&stw_dev->screen_mutex);
 125    InitializeCriticalSection(&stw_dev->ctx_mutex);
 126    InitializeCriticalSection(&stw_dev->fb_mutex);
 127
 128    stw_dev->ctx_table = handle_table_create();
 129    if (!stw_dev->ctx_table) {
 130       goto error1;
 131    }
 132
 133    /* env var override for WGL_EXT_swap_control, useful for testing/debugging */
 134    const char *s = os_get_option("WGL_SWAP_INTERVAL");
 135    if (s) {
 136       stw_dev->swap_interval = atoi(s);
 137    }
 138    stw_dev->refresh_rate = get_refresh_rate();
 139
 140    stw_dev->initialized = true;
 141
 142    return TRUE;
 143
 144 error1:
 145    FREE(stw_dev->smapi);
 146    if (stw_dev->stapi)
 147       stw_dev->stapi->destroy(stw_dev->stapi);
 148
 149    stw_dev = NULL;
 150    return FALSE;
 151 }
 152
 153 boolean
 154 stw_init_screen()
 155 {
 156    EnterCriticalSection(&stw_dev->screen_mutex);
 157
 158    if (!stw_dev->screen_initialized) {
 159       stw_dev->screen_initialized = true;
 160       if (!init_screen(stw_dev->stw_winsys)) {
 161          LeaveCriticalSection(&stw_dev->screen_mutex);
 162          return false;
 163       }
 164       stw_pixelformat_init();
 165    }
 166
 167    LeaveCriticalSection(&stw_dev->screen_mutex);
 168    return stw_dev->screen != NULL;
 169 }
 170
 171 boolean
 172 stw_init_thread(void)
 173 {
 174    return stw_tls_init_thread();
 175 }
 176
 177
 178 void
 179 stw_cleanup_thread(void)
 180 {
 181    stw_tls_cleanup_thread();
 182 }
 183
 184
 185 void
 186 stw_cleanup(void)
 187 {
 188    DHGLRC dhglrc;
 189
 190    debug_printf("%s\n", __FUNCTION__);
 191
 192    if (!stw_dev)
 193       return;
 194
 195    /*
 196     * Abort cleanup if there are still active contexts. In some situations
 197     * this DLL may be unloaded before the DLL that is using GL contexts is.
 198     */
 199    stw_lock_contexts(stw_dev);
 200    dhglrc = handle_table_get_first_handle(stw_dev->ctx_table);
 201    stw_unlock_contexts(stw_dev);
 202    if (dhglrc) {
 203       debug_printf("%s: contexts still active -- cleanup aborted\n", __FUNCTION__);
 204       stw_dev = NULL;
 205       return;
 206    }
 207
 208    handle_table_destroy(stw_dev->ctx_table);
 209
 210    stw_framebuffer_cleanup();
 211
 212    DeleteCriticalSection(&stw_dev->fb_mutex);
 213    DeleteCriticalSection(&stw_dev->ctx_mutex);
 214    DeleteCriticalSection(&stw_dev->screen_mutex);
 215
 216    if (stw_dev->smapi->destroy)
 217       stw_dev->smapi->destroy(stw_dev->smapi);
 218
 219    FREE(stw_dev->smapi);
 220    stw_dev->stapi->destroy(stw_dev->stapi);
 221
 222    stw_dev->screen->destroy(stw_dev->screen);
 223
 224    /* glapi is statically linked: we can call the local destroy function. */
 225 #ifdef _GLAPI_NO_EXPORTS
 226    _glapi_destroy_multithread();
 227 #endif
 228
 229    stw_tls_cleanup();
 230
 231    stw_dev = NULL;
 232 }
 233
 234
 235 void APIENTRY
 236 DrvSetCallbackProcs(INT nProcs, PROC *pProcs)
 237 {
 238    size_t size;
 239
 240    if (stw_dev == NULL)
 241       return;
 242
 243    size = MIN2(nProcs * sizeof *pProcs, sizeof stw_dev->callbacks);
 244    memcpy(&stw_dev->callbacks, pProcs, size);
 245
 246    return;
 247 }
 248
 249
 250 BOOL APIENTRY
 251 DrvValidateVersion(ULONG ulVersion)
 252 {
 253    /* ulVersion is the version reported by the KMD:
 254     * - via D3DKMTQueryAdapterInfo(KMTQAITYPE_UMOPENGLINFO) on WDDM,
 255     * - or ExtEscape on XPDM and can be used to ensure the KMD and OpenGL ICD
 256     *   versions match.
 257     *
 258     * We should get the expected version number from the winsys, but for now
 259     * ignore it.
 260     */
 261    (void)ulVersion;
 262    return TRUE;
 263 }