Subversion Repositories Kolibri OS

/**************************************************************************

 *

 * Copyright 2008 VMware, Inc.

 * All Rights Reserved.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the

 * "Software"), to deal in the Software without restriction, including

 * without limitation the rights to use, copy, modify, merge, publish,

 * distribute, sub license, and/or sell copies of the Software, and to

 * permit persons to whom the Software is furnished to do so, subject to

 * the following conditions:

 *

 * The above copyright notice and this permission notice (including the

 * next paragraph) shall be included in all copies or substantial portions

 * of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR

 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 *

 **************************************************************************/

#include 

#include "glapi/glapi.h"

#include "util/u_debug.h"

#include "util/u_math.h"

#include "util/u_memory.h"

#include "pipe/p_screen.h"

#include "stw_device.h"

#include "stw_winsys.h"

#include "stw_pixelformat.h"

#include "stw_icd.h"

#include "stw_tls.h"

#include "stw_framebuffer.h"

#include "stw_st.h"

struct stw_device *stw_dev = NULL;

static int

stw_get_param(struct st_manager *smapi,

              enum st_manager_param param)

{

   switch (param) {

   case ST_MANAGER_BROKEN_INVALIDATE:

      /*

       * Force framebuffer validation on glViewport.

       *

       * Certain applications, like Rhinoceros 4, uses glReadPixels

       * exclusively (never uses SwapBuffers), so framebuffers never get

       * resized unless we check on glViewport.

       */

      return 1;

   default:

      return 0;

   }

}

boolean

stw_init(const struct stw_winsys *stw_winsys)

{

   static struct stw_device stw_dev_storage;

   struct pipe_screen *screen;

   debug_disable_error_message_boxes();

   debug_printf("%s\n", __FUNCTION__);

   assert(!stw_dev);

   stw_tls_init();

   stw_dev = &stw_dev_storage;

   memset(stw_dev, 0, sizeof(*stw_dev));

#ifdef DEBUG

   stw_dev->memdbg_no = debug_memory_begin();

#endif

   stw_dev->stw_winsys = stw_winsys;

   stw_dev->stapi = stw_st_create_api();

   stw_dev->smapi = CALLOC_STRUCT(st_manager);

   if (!stw_dev->stapi || !stw_dev->smapi)

      goto error1;

   screen = stw_winsys->create_screen();

   if(!screen)

      goto error1;

   if(stw_winsys->get_adapter_luid)

      stw_winsys->get_adapter_luid(screen, &stw_dev->AdapterLuid);

   stw_dev->smapi->screen = screen;

   stw_dev->smapi->get_param = stw_get_param;

   stw_dev->screen = screen;

   stw_dev->max_2d_levels =

         screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);

   stw_dev->max_2d_length = 1 << (stw_dev->max_2d_levels - 1);

   pipe_mutex_init( stw_dev->ctx_mutex );

   pipe_mutex_init( stw_dev->fb_mutex );

   stw_dev->ctx_table = handle_table_create();

   if (!stw_dev->ctx_table) {

      goto error1;

   }

   stw_pixelformat_init();

   return TRUE;

error1:

   FREE(stw_dev->smapi);

   if (stw_dev->stapi)

      stw_dev->stapi->destroy(stw_dev->stapi);

   stw_dev = NULL;

   return FALSE;

}

boolean

stw_init_thread(void)

{

   return stw_tls_init_thread();

}

void

stw_cleanup_thread(void)

{

   stw_tls_cleanup_thread();

}

void

stw_cleanup(void)

{

   DHGLRC dhglrc;

   debug_printf("%s\n", __FUNCTION__);

   if (!stw_dev)

      return;

   /*

    * Abort cleanup if there are still active contexts. In some situations

    * this DLL may be unloaded before the DLL that is using GL contexts is.

    */

   pipe_mutex_lock( stw_dev->ctx_mutex );

   dhglrc = handle_table_get_first_handle(stw_dev->ctx_table);

   pipe_mutex_unlock( stw_dev->ctx_mutex );

   if (dhglrc) {

      debug_printf("%s: contexts still active -- cleanup aborted\n", __FUNCTION__);

      stw_dev = NULL;

      return;

   }

   handle_table_destroy(stw_dev->ctx_table);

   stw_framebuffer_cleanup();

   pipe_mutex_destroy( stw_dev->fb_mutex );

   pipe_mutex_destroy( stw_dev->ctx_mutex );

   FREE(stw_dev->smapi);

   stw_dev->stapi->destroy(stw_dev->stapi);

   stw_dev->screen->destroy(stw_dev->screen);

   /* glapi is statically linked: we can call the local destroy function. */

#ifdef _GLAPI_NO_EXPORTS

   _glapi_destroy_multithread();

#endif

#ifdef DEBUG

   debug_memory_end(stw_dev->memdbg_no);

#endif

   stw_tls_cleanup();

   stw_dev = NULL;

}

void APIENTRY

DrvSetCallbackProcs(

   INT nProcs,

   PROC *pProcs )

{

   size_t size;

   if (stw_dev == NULL)

      return;

   size = MIN2(nProcs * sizeof *pProcs, sizeof stw_dev->callbacks);

   memcpy(&stw_dev->callbacks, pProcs, size);

   return;

}

BOOL APIENTRY

DrvValidateVersion(

   ULONG ulVersion )

{

   /* ulVersion is the version reported by the KMD:

    * - via D3DKMTQueryAdapterInfo(KMTQAITYPE_UMOPENGLINFO) on WDDM,

    * - or ExtEscape on XPDM and can be used to ensure the KMD and OpenGL ICD

    *   versions match.

    *

    * We should get the expected version number from the winsys, but for now

    * ignore it.

    */

   (void)ulVersion;

   return TRUE;

}