Home | History | Annotate | Download | only in wgl 
      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 "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 
     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 
     84 boolean
     85 stw_init(const struct stw_winsys *stw_winsys)
     86 {
     87    static struct stw_device stw_dev_storage;
     88    struct pipe_screen *screen;
     89 
     90    debug_disable_error_message_boxes();
     91 
     92    debug_printf("%s\n", __FUNCTION__);
     93 
     94    assert(!stw_dev);
     95 
     96    stw_tls_init();
     97 
     98    stw_dev = &stw_dev_storage;
     99    memset(stw_dev, 0, sizeof(*stw_dev));
    100 
    101 #ifdef DEBUG
    102    stw_dev->memdbg_no = debug_memory_begin();
    103 #endif
    104 
    105    stw_dev->stw_winsys = stw_winsys;
    106 
    107    stw_dev->stapi = stw_st_create_api();
    108    stw_dev->smapi = CALLOC_STRUCT(st_manager);
    109    if (!stw_dev->stapi || !stw_dev->smapi)
    110       goto error1;
    111 
    112    screen = stw_winsys->create_screen();
    113    if (!screen)
    114       goto error1;
    115 
    116    if (stw_winsys->get_adapter_luid)
    117       stw_winsys->get_adapter_luid(screen, &stw_dev->AdapterLuid);
    118 
    119    stw_dev->smapi->screen = screen;
    120    stw_dev->smapi->get_param = stw_get_param;
    121    stw_dev->screen = screen;
    122 
    123    stw_dev->max_2d_levels =
    124          screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
    125    stw_dev->max_2d_length = 1 << (stw_dev->max_2d_levels - 1);
    126 
    127    InitializeCriticalSection(&stw_dev->ctx_mutex);
    128    InitializeCriticalSection(&stw_dev->fb_mutex);
    129 
    130    stw_dev->ctx_table = handle_table_create();
    131    if (!stw_dev->ctx_table) {
    132       goto error1;
    133    }
    134 
    135    stw_pixelformat_init();
    136 
    137    /* env var override for WGL_EXT_swap_control, useful for testing/debugging */
    138    const char *s = os_get_option("SVGA_SWAP_INTERVAL");
    139    if (s) {
    140       stw_dev->swap_interval = atoi(s);
    141    }
    142    stw_dev->refresh_rate = get_refresh_rate();
    143 
    144    stw_dev->initialized = true;
    145 
    146    return TRUE;
    147 
    148 error1:
    149    FREE(stw_dev->smapi);
    150    if (stw_dev->stapi)
    151       stw_dev->stapi->destroy(stw_dev->stapi);
    152 
    153    stw_dev = NULL;
    154    return FALSE;
    155 }
    156 
    157 
    158 boolean
    159 stw_init_thread(void)
    160 {
    161    return stw_tls_init_thread();
    162 }
    163 
    164 
    165 void
    166 stw_cleanup_thread(void)
    167 {
    168    stw_tls_cleanup_thread();
    169 }
    170 
    171 
    172 void
    173 stw_cleanup(void)
    174 {
    175    DHGLRC dhglrc;
    176 
    177    debug_printf("%s\n", __FUNCTION__);
    178 
    179    if (!stw_dev)
    180       return;
    181 
    182    /*
    183     * Abort cleanup if there are still active contexts. In some situations
    184     * this DLL may be unloaded before the DLL that is using GL contexts is.
    185     */
    186    stw_lock_contexts(stw_dev);
    187    dhglrc = handle_table_get_first_handle(stw_dev->ctx_table);
    188    stw_unlock_contexts(stw_dev);
    189    if (dhglrc) {
    190       debug_printf("%s: contexts still active -- cleanup aborted\n", __FUNCTION__);
    191       stw_dev = NULL;
    192       return;
    193    }
    194 
    195    handle_table_destroy(stw_dev->ctx_table);
    196 
    197    stw_framebuffer_cleanup();
    198 
    199    DeleteCriticalSection(&stw_dev->fb_mutex);
    200    DeleteCriticalSection(&stw_dev->ctx_mutex);
    201 
    202    if (stw_dev->smapi->destroy)
    203       stw_dev->smapi->destroy(stw_dev->smapi);
    204 
    205    FREE(stw_dev->smapi);
    206    stw_dev->stapi->destroy(stw_dev->stapi);
    207 
    208    stw_dev->screen->destroy(stw_dev->screen);
    209 
    210    /* glapi is statically linked: we can call the local destroy function. */
    211 #ifdef _GLAPI_NO_EXPORTS
    212    _glapi_destroy_multithread();
    213 #endif
    214 
    215 #ifdef DEBUG
    216    debug_memory_end(stw_dev->memdbg_no);
    217 #endif
    218 
    219    stw_tls_cleanup();
    220 
    221    stw_dev = NULL;
    222 }
    223 
    224 
    225 void APIENTRY
    226 DrvSetCallbackProcs(INT nProcs, PROC *pProcs)
    227 {
    228    size_t size;
    229 
    230    if (stw_dev == NULL)
    231       return;
    232 
    233    size = MIN2(nProcs * sizeof *pProcs, sizeof stw_dev->callbacks);
    234    memcpy(&stw_dev->callbacks, pProcs, size);
    235 
    236    return;
    237 }
    238 
    239 
    240 BOOL APIENTRY
    241 DrvValidateVersion(ULONG ulVersion)
    242 {
    243    /* ulVersion is the version reported by the KMD:
    244     * - via D3DKMTQueryAdapterInfo(KMTQAITYPE_UMOPENGLINFO) on WDDM,
    245     * - or ExtEscape on XPDM and can be used to ensure the KMD and OpenGL ICD
    246     *   versions match.
    247     *
    248     * We should get the expected version number from the winsys, but for now
    249     * ignore it.
    250     */
    251    (void)ulVersion;
    252    return TRUE;
    253 }
    254