/************************************************************************** * * Copyright 2009-2010 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 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 * THE COPYRIGHT HOLDERS, AUTHORS 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. * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * **************************************************************************/ /** * @file * Softpipe/LLVMpipe support. * * @author Jose Fonseca */ #include #include "util/u_debug.h" #include "stw_winsys.h" #include "stw_device.h" #include "gdi/gdi_sw_winsys.h" #include "softpipe/sp_texture.h" #include "softpipe/sp_screen.h" #include "softpipe/sp_public.h" #ifdef HAVE_LLVMPIPE #include "llvmpipe/lp_texture.h" #include "llvmpipe/lp_screen.h" #include "llvmpipe/lp_public.h" #endif static boolean use_llvmpipe = FALSE; static struct pipe_screen * gdi_screen_create(void) { const char *default_driver; const char *driver; struct pipe_screen *screen = NULL; struct sw_winsys *winsys; winsys = gdi_create_sw_winsys(); if(!winsys) goto no_winsys; #ifdef HAVE_LLVMPIPE default_driver = "llvmpipe"; #else default_driver = "softpipe"; #endif driver = debug_get_option("GALLIUM_DRIVER", default_driver); #ifdef HAVE_LLVMPIPE if (strcmp(driver, "llvmpipe") == 0) { screen = llvmpipe_create_screen( winsys ); } #else (void) driver; #endif if (screen == NULL) { screen = softpipe_create_screen( winsys ); } else { use_llvmpipe = TRUE; } if(!screen) goto no_screen; return screen; no_screen: winsys->destroy(winsys); no_winsys: return NULL; } static void gdi_present(struct pipe_screen *screen, struct pipe_resource *res, HDC hDC) { /* This will fail if any interposing layer (trace, debug, etc) has * been introduced between the state-trackers and the pipe driver. * * Ideally this would get replaced with a call to * pipe_screen::flush_frontbuffer(). * * Failing that, it may be necessary for intervening layers to wrap * other structs such as this stw_winsys as well... */ struct sw_winsys *winsys = NULL; struct sw_displaytarget *dt = NULL; #ifdef HAVE_LLVMPIPE if (use_llvmpipe) { winsys = llvmpipe_screen(screen)->winsys; dt = llvmpipe_resource(res)->dt; gdi_sw_display(winsys, dt, hDC); return; } #endif winsys = softpipe_screen(screen)->winsys, dt = softpipe_resource(res)->dt, gdi_sw_display(winsys, dt, hDC); } static const struct stw_winsys stw_winsys = { &gdi_screen_create, &gdi_present, NULL, /* get_adapter_luid */ NULL, /* shared_surface_open */ NULL, /* shared_surface_close */ NULL /* compose */ }; EXTERN_C BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved); BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) { switch (fdwReason) { case DLL_PROCESS_ATTACH: stw_init(&stw_winsys); stw_init_thread(); break; case DLL_THREAD_ATTACH: stw_init_thread(); break; case DLL_THREAD_DETACH: stw_cleanup_thread(); break; case DLL_PROCESS_DETACH: if (lpvReserved == NULL) { // We're being unloaded from the process. stw_cleanup_thread(); stw_cleanup(); } else { // Process itself is terminating, and all threads and modules are // being detached. // // The order threads (including llvmpipe rasterizer threads) are // destroyed can not be relied up, so it's not safe to cleanup. // // However global destructors (e.g., LLVM's) will still be called, and // if Microsoft OPENGL32.DLL's DllMain is called after us, it will // still try to invoke DrvDeleteContext to destroys all outstanding, // so set stw_dev to NULL to return immediately if that happens. stw_dev = NULL; } break; } return TRUE; }