src/gallium/state_trackers/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_debug_gallium.h"
  33 #include "util/u_math.h"
  34 #include "util/u_memory.h"
  35 #include "pipe/p_screen.h"
  36
  37 #include "stw_device.h"
  38 #include "stw_winsys.h"
  39 #include "stw_pixelformat.h"
  40 #include "stw_icd.h"
  41 #include "stw_tls.h"
  42 #include "stw_framebuffer.h"
  43 #include "stw_st.h"
  44
  45
  46 struct stw_device *stw_dev = NULL;
  47
  48 static int
  49 stw_get_param(struct st_manager *smapi,
  50               enum st_manager_param param)
  51 {
  52    switch (param) {
  53    case ST_MANAGER_BROKEN_INVALIDATE:
  54       /*
  55        * Force framebuffer validation on glViewport.
  56        *
  57        * Certain applications, like Rhinoceros 4, uses glReadPixels
  58        * exclusively (never uses SwapBuffers), so framebuffers never get
  59        * resized unless we check on glViewport.
  60        */
  61       return 1;
  62    default:
  63       return 0;
  64    }
  65 }
  66
  67
  68 /** Get the refresh rate for the monitor, in Hz */
  69 static int
  70 get_refresh_rate(void)
  71 {
  72    DEVMODE devModes;
  73
  74    if (EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &devModes)) {
  75       /* clamp the value, just in case we get garbage */
  76       return CLAMP(devModes.dmDisplayFrequency, 30, 120);
  77    }
  78    else {
  79       /* reasonable default */
  80       return 60;
  81    }
  82 }
  83
  84
  85 boolean
  86 stw_init(const struct stw_winsys *stw_winsys)
  87 {
  88    static struct stw_device stw_dev_storage;
  89    struct pipe_screen *screen;
  90
  91    debug_disable_error_message_boxes();
  92
  93    debug_printf("%s\n", __FUNCTION__);
  94
  95    assert(!stw_dev);
  96
  97    stw_tls_init();
  98
  99    stw_dev = &stw_dev_storage;
 100    memset(stw_dev, 0, sizeof(*stw_dev));
 101
 102 #ifdef DEBUG
 103    stw_dev->memdbg_no = debug_memory_begin();
 104 #endif
 105
 106    stw_dev->stw_winsys = stw_winsys;
 107
 108    stw_dev->stapi = stw_st_create_api();
 109    stw_dev->smapi = CALLOC_STRUCT(st_manager);
 110    if (!stw_dev->stapi || !stw_dev->smapi)
 111       goto error1;
 112
 113    screen = stw_winsys->create_screen();
 114    if (!screen)
 115       goto error1;
 116
 117    if (stw_winsys->get_adapter_luid)
 118       stw_winsys->get_adapter_luid(screen, &stw_dev->AdapterLuid);
 119
 120    stw_dev->smapi->screen = screen;
 121    stw_dev->smapi->get_param = stw_get_param;
 122    stw_dev->screen = screen;
 123
 124    stw_dev->max_2d_levels = util_last_bit(screen->get_param(screen,
 125                                                             PIPE_CAP_MAX_TEXTURE_2D_SIZE));
 126    stw_dev->max_2d_length = 1 << (stw_dev->max_2d_levels - 1);
 127
 128    InitializeCriticalSection(&stw_dev->ctx_mutex);
 129    InitializeCriticalSection(&stw_dev->fb_mutex);
 130
 131    stw_dev->ctx_table = handle_table_create();
 132    if (!stw_dev->ctx_table) {
 133       goto error1;
 134    }
 135
 136    stw_pixelformat_init();
 137
 138    /* env var override for WGL_EXT_swap_control, useful for testing/debugging */
 139    const char *s = os_get_option("WGL_SWAP_INTERVAL");
 140    if (s) {
 141       stw_dev->swap_interval = atoi(s);
 142    }
 143    stw_dev->refresh_rate = get_refresh_rate();
 144
 145    stw_dev->initialized = true;
 146
 147    return TRUE;
 148
 149 error1:
 150    FREE(stw_dev->smapi);
 151    if (stw_dev->stapi)
 152       stw_dev->stapi->destroy(stw_dev->stapi);
 153
 154    stw_dev = NULL;
 155    return FALSE;
 156 }
 157
 158
 159 boolean
 160 stw_init_thread(void)
 161 {
 162    return stw_tls_init_thread();
 163 }
 164
 165
 166 void
 167 stw_cleanup_thread(void)
 168 {
 169    stw_tls_cleanup_thread();
 170 }
 171
 172
 173 void
 174 stw_cleanup(void)
 175 {
 176    DHGLRC dhglrc;
 177
 178    debug_printf("%s\n", __FUNCTION__);
 179
 180    if (!stw_dev)
 181       return;
 182
 183    /*
 184     * Abort cleanup if there are still active contexts. In some situations
 185     * this DLL may be unloaded before the DLL that is using GL contexts is.
 186     */
 187    stw_lock_contexts(stw_dev);
 188    dhglrc = handle_table_get_first_handle(stw_dev->ctx_table);
 189    stw_unlock_contexts(stw_dev);
 190    if (dhglrc) {
 191       debug_printf("%s: contexts still active -- cleanup aborted\n", __FUNCTION__);
 192       stw_dev = NULL;
 193       return;
 194    }
 195
 196    handle_table_destroy(stw_dev->ctx_table);
 197
 198    stw_framebuffer_cleanup();
 199
 200    DeleteCriticalSection(&stw_dev->fb_mutex);
 201    DeleteCriticalSection(&stw_dev->ctx_mutex);
 202
 203    if (stw_dev->smapi->destroy)
 204       stw_dev->smapi->destroy(stw_dev->smapi);
 205
 206    FREE(stw_dev->smapi);
 207    stw_dev->stapi->destroy(stw_dev->stapi);
 208
 209    stw_dev->screen->destroy(stw_dev->screen);
 210
 211    /* glapi is statically linked: we can call the local destroy function. */
 212 #ifdef _GLAPI_NO_EXPORTS
 213    _glapi_destroy_multithread();
 214 #endif
 215
 216 #ifdef DEBUG
 217    debug_memory_end(stw_dev->memdbg_no);
 218 #endif
 219
 220    stw_tls_cleanup();
 221
 222    stw_dev = NULL;
 223 }
 224
 225
 226 void APIENTRY
 227 DrvSetCallbackProcs(INT nProcs, PROC *pProcs)
 228 {
 229    size_t size;
 230
 231    if (stw_dev == NULL)
 232       return;
 233
 234    size = MIN2(nProcs * sizeof *pProcs, sizeof stw_dev->callbacks);
 235    memcpy(&stw_dev->callbacks, pProcs, size);
 236
 237    return;
 238 }
 239
 240
 241 BOOL APIENTRY
 242 DrvValidateVersion(ULONG ulVersion)
 243 {
 244    /* ulVersion is the version reported by the KMD:
 245     * - via D3DKMTQueryAdapterInfo(KMTQAITYPE_UMOPENGLINFO) on WDDM,
 246     * - or ExtEscape on XPDM and can be used to ensure the KMD and OpenGL ICD
 247     *   versions match.
 248     *
 249     * We should get the expected version number from the winsys, but for now
 250     * ignore it.
 251     */
 252    (void)ulVersion;
 253    return TRUE;
 254 }