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_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    FREE(stw_dev->smapi);
 121    if (stw_dev->stapi)
 122       stw_dev->stapi->destroy(stw_dev->stapi);
 123
 124    stw_dev = NULL;
 125    return FALSE;
 126 }
 127
 128
 129 boolean
 130 stw_init_thread(void)
 131 {
 132    return stw_tls_init_thread();
 133 }
 134
 135
 136 void
 137 stw_cleanup_thread(void)
 138 {
 139    stw_tls_cleanup_thread();
 140 }
 141
 142
 143 void
 144 stw_cleanup(void)
 145 {
 146    DHGLRC dhglrc;
 147
 148    debug_printf("%s\n", __FUNCTION__);
 149
 150    if (!stw_dev)
 151       return;
 152
 153    /*
 154     * Abort cleanup if there are still active contexts. In some situations
 155     * this DLL may be unloaded before the DLL that is using GL contexts is.
 156     */
 157    pipe_mutex_lock( stw_dev->ctx_mutex );
 158    dhglrc = handle_table_get_first_handle(stw_dev->ctx_table);
 159    pipe_mutex_unlock( stw_dev->ctx_mutex );
 160    if (dhglrc) {
 161       debug_printf("%s: contexts still active -- cleanup aborted\n", __FUNCTION__);
 162       stw_dev = NULL;
 163       return;
 164    }
 165
 166    handle_table_destroy(stw_dev->ctx_table);
 167
 168    stw_framebuffer_cleanup();
 169
 170    pipe_mutex_destroy( stw_dev->fb_mutex );
 171    pipe_mutex_destroy( stw_dev->ctx_mutex );
 172
 173    FREE(stw_dev->smapi);
 174    stw_dev->stapi->destroy(stw_dev->stapi);
 175
 176    stw_dev->screen->destroy(stw_dev->screen);
 177
 178    /* glapi is statically linked: we can call the local destroy function. */
 179 #ifdef _GLAPI_NO_EXPORTS
 180    _glapi_destroy_multithread();
 181 #endif
 182
 183 #ifdef DEBUG
 184    debug_memory_end(stw_dev->memdbg_no);
 185 #endif
 186
 187    stw_tls_cleanup();
 188
 189    stw_dev = NULL;
 190 }
 191
 192
 193 void APIENTRY
 194 DrvSetCallbackProcs(
 195    INT nProcs,
 196    PROC *pProcs )
 197 {
 198    size_t size;
 199
 200    if (stw_dev == NULL)
 201       return;
 202
 203    size = MIN2(nProcs * sizeof *pProcs, sizeof stw_dev->callbacks);
 204    memcpy(&stw_dev->callbacks, pProcs, size);
 205
 206    return;
 207 }
 208
 209
 210 BOOL APIENTRY
 211 DrvValidateVersion(
 212    ULONG ulVersion )
 213 {
 214    /* TODO: get the expected version from the winsys */
 215    return ulVersion == 1;
 216 }