diff options
Diffstat (limited to 'src/gallium/winsys/xlib/xlib_llvmpipe.c')
-rw-r--r-- | src/gallium/winsys/xlib/xlib_llvmpipe.c | 442 |
1 files changed, 0 insertions, 442 deletions
diff --git a/src/gallium/winsys/xlib/xlib_llvmpipe.c b/src/gallium/winsys/xlib/xlib_llvmpipe.c deleted file mode 100644 index 6cebd4c2012..00000000000 --- a/src/gallium/winsys/xlib/xlib_llvmpipe.c +++ /dev/null @@ -1,442 +0,0 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Bismarck, ND., USA - * 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. - * - * - **************************************************************************/ - -/* - * Authors: - * Keith Whitwell - * Brian Paul - */ - - -#if defined(GALLIUM_LLVMPIPE) - -#include "xm_api.h" - -#undef ASSERT -#undef Elements - -#include "util/u_simple_screen.h" -#include "pipe/p_format.h" -#include "pipe/p_context.h" -#include "util/u_inlines.h" -#include "util/u_format.h" -#include "util/u_math.h" -#include "util/u_memory.h" -#include "llvmpipe/lp_winsys.h" -#include "llvmpipe/lp_texture.h" - -#include "xlib.h" - -/** - * Subclass of pipe_buffer for Xlib winsys. - * Low-level OS/window system memory buffer - */ -struct xm_displaytarget -{ - enum pipe_format format; - unsigned width; - unsigned height; - unsigned stride; - - void *data; - void *mapped; - - XImage *tempImage; -#ifdef USE_XSHM - int shm; - XShmSegmentInfo shminfo; -#endif -}; - - -/** - * Subclass of llvmpipe_winsys for Xlib winsys - */ -struct xmesa_llvmpipe_winsys -{ - struct llvmpipe_winsys base; -/* struct xmesa_visual *xm_visual; */ -}; - - - -/** Cast wrapper */ -static INLINE struct xm_displaytarget * -xm_displaytarget( struct llvmpipe_displaytarget *dt ) -{ - return (struct xm_displaytarget *)dt; -} - - -/** - * X Shared Memory Image extension code - */ - -#ifdef USE_XSHM - -static volatile int mesaXErrorFlag = 0; - -/** - * Catches potential Xlib errors. - */ -static int -mesaHandleXError(Display *dpy, XErrorEvent *event) -{ - (void) dpy; - (void) event; - mesaXErrorFlag = 1; - return 0; -} - - -static char *alloc_shm(struct xm_displaytarget *buf, unsigned size) -{ - XShmSegmentInfo *const shminfo = & buf->shminfo; - - shminfo->shmid = shmget(IPC_PRIVATE, size, IPC_CREAT|0777); - if (shminfo->shmid < 0) { - return NULL; - } - - shminfo->shmaddr = (char *) shmat(shminfo->shmid, 0, 0); - if (shminfo->shmaddr == (char *) -1) { - shmctl(shminfo->shmid, IPC_RMID, 0); - return NULL; - } - - shminfo->readOnly = False; - return shminfo->shmaddr; -} - - -/** - * Allocate a shared memory XImage back buffer for the given XMesaBuffer. - */ -static void -alloc_shm_ximage(struct xm_displaytarget *xm_buffer, - struct xmesa_buffer *xmb, - unsigned width, unsigned height) -{ - /* - * We have to do a _lot_ of error checking here to be sure we can - * really use the XSHM extension. It seems different servers trigger - * errors at different points if the extension won't work. Therefore - * we have to be very careful... - */ - int (*old_handler)(Display *, XErrorEvent *); - - xm_buffer->tempImage = XShmCreateImage(xmb->xm_visual->display, - xmb->xm_visual->visinfo->visual, - xmb->xm_visual->visinfo->depth, - ZPixmap, - NULL, - &xm_buffer->shminfo, - width, height); - if (xm_buffer->tempImage == NULL) { - xm_buffer->shm = 0; - return; - } - - - mesaXErrorFlag = 0; - old_handler = XSetErrorHandler(mesaHandleXError); - /* This may trigger the X protocol error we're ready to catch: */ - XShmAttach(xmb->xm_visual->display, &xm_buffer->shminfo); - XSync(xmb->xm_visual->display, False); - - if (mesaXErrorFlag) { - /* we are on a remote display, this error is normal, don't print it */ - XFlush(xmb->xm_visual->display); - mesaXErrorFlag = 0; - XDestroyImage(xm_buffer->tempImage); - xm_buffer->tempImage = NULL; - xm_buffer->shm = 0; - (void) XSetErrorHandler(old_handler); - return; - } - - xm_buffer->shm = 1; -} - -#endif /* USE_XSHM */ - -static boolean -xm_is_displaytarget_format_supported( struct llvmpipe_winsys *ws, - enum pipe_format format ) -{ - /* TODO: check visuals or other sensible thing here */ - return TRUE; -} - - -static void * -xm_displaytarget_map(struct llvmpipe_winsys *ws, - struct llvmpipe_displaytarget *dt, - unsigned flags) -{ - struct xm_displaytarget *xm_dt = xm_displaytarget(dt); - xm_dt->mapped = xm_dt->data; - return xm_dt->mapped; -} - -static void -xm_displaytarget_unmap(struct llvmpipe_winsys *ws, - struct llvmpipe_displaytarget *dt) -{ - struct xm_displaytarget *xm_dt = xm_displaytarget(dt); - xm_dt->mapped = NULL; -} - -static void -xm_displaytarget_destroy(struct llvmpipe_winsys *ws, - struct llvmpipe_displaytarget *dt) -{ - struct xm_displaytarget *xm_dt = xm_displaytarget(dt); - - if (xm_dt->data) { -#ifdef USE_XSHM - if (xm_dt->shminfo.shmid >= 0) { - shmdt(xm_dt->shminfo.shmaddr); - shmctl(xm_dt->shminfo.shmid, IPC_RMID, 0); - - xm_dt->shminfo.shmid = -1; - xm_dt->shminfo.shmaddr = (char *) -1; - } - else -#endif - FREE(xm_dt->data); - } - - FREE(xm_dt); -} - - -/** - * Display/copy the image in the surface into the X window specified - * by the XMesaBuffer. - */ -static void -xm_llvmpipe_display(struct xmesa_buffer *xm_buffer, - struct llvmpipe_displaytarget *dt) -{ - XImage *ximage; - struct xm_displaytarget *xm_dt = xm_displaytarget(dt); - static boolean no_swap = 0; - static boolean firsttime = 1; - - if (firsttime) { - no_swap = getenv("SP_NO_RAST") != NULL; - firsttime = 0; - } - - if (no_swap) - return; - -#ifdef USE_XSHM - if (xm_dt->shm) - { - if (xm_dt->tempImage == NULL) - { - assert(util_format_get_blockwidth(xm_dt->format) == 1); - assert(util_format_get_blockheight(xm_dt->format) == 1); - alloc_shm_ximage(xm_dt, xm_buffer, - xm_dt->stride / util_format_get_blocksize(xm_dt->format), - xm_dt->height); - } - - ximage = xm_dt->tempImage; - ximage->data = xm_dt->data; - - /* _debug_printf("XSHM\n"); */ - XShmPutImage(xm_buffer->xm_visual->display, xm_buffer->drawable, xm_buffer->gc, - ximage, 0, 0, 0, 0, xm_dt->width, xm_dt->height, False); - } - else -#endif - { - /* display image in Window */ - ximage = xm_dt->tempImage; - ximage->data = xm_dt->data; - - /* check that the XImage has been previously initialized */ - assert(ximage->format); - assert(ximage->bitmap_unit); - - /* update XImage's fields */ - ximage->width = xm_dt->width; - ximage->height = xm_dt->height; - ximage->bytes_per_line = xm_dt->stride; - - /* _debug_printf("XPUT\n"); */ - XPutImage(xm_buffer->xm_visual->display, xm_buffer->drawable, xm_buffer->gc, - ximage, 0, 0, 0, 0, xm_dt->width, xm_dt->height); - } -} - -/** - * Display/copy the image in the surface into the X window specified - * by the XMesaBuffer. - */ -static void -xm_displaytarget_display(struct llvmpipe_winsys *ws, - struct llvmpipe_displaytarget *dt, - void *context_private) -{ - XMesaContext xmctx = (XMesaContext) context_private; - struct xmesa_buffer *xm_buffer = xmctx->xm_buffer; - xm_llvmpipe_display(xm_buffer, dt); -} - - -static struct llvmpipe_displaytarget * -xm_displaytarget_create(struct llvmpipe_winsys *winsys, - enum pipe_format format, - unsigned width, unsigned height, - unsigned alignment, - unsigned *stride) -{ - struct xm_displaytarget *xm_dt = CALLOC_STRUCT(xm_displaytarget); - unsigned nblocksy, size; - - xm_dt = CALLOC_STRUCT(xm_displaytarget); - if(!xm_dt) - goto no_xm_dt; - - xm_dt->format = format; - xm_dt->width = width; - xm_dt->height = height; - - nblocksy = util_format_get_nblocksy(format, height); - xm_dt->stride = align(util_format_get_stride(format, width), alignment); - size = xm_dt->stride * nblocksy; - -#ifdef USE_XSHM - if (!debug_get_bool_option("XLIB_NO_SHM", FALSE)) - { - xm_dt->shminfo.shmid = -1; - xm_dt->shminfo.shmaddr = (char *) -1; - xm_dt->shm = TRUE; - - xm_dt->data = alloc_shm(xm_dt, size); - if(!xm_dt->data) - goto no_data; - } -#endif - - if(!xm_dt->data) { - xm_dt->data = align_malloc(size, alignment); - if(!xm_dt->data) - goto no_data; - } - - *stride = xm_dt->stride; - return (struct llvmpipe_displaytarget *)xm_dt; - -no_data: - FREE(xm_dt); -no_xm_dt: - return NULL; -} - - -static void -xm_destroy( struct llvmpipe_winsys *ws ) -{ - FREE(ws); -} - - -static struct llvmpipe_winsys * -xlib_create_llvmpipe_winsys( void ) -{ - struct xmesa_llvmpipe_winsys *ws; - - ws = CALLOC_STRUCT(xmesa_llvmpipe_winsys); - if (!ws) - return NULL; - - ws->base.destroy = xm_destroy; - - ws->base.is_displaytarget_format_supported = xm_is_displaytarget_format_supported; - - ws->base.displaytarget_create = xm_displaytarget_create; - ws->base.displaytarget_map = xm_displaytarget_map; - ws->base.displaytarget_unmap = xm_displaytarget_unmap; - ws->base.displaytarget_destroy = xm_displaytarget_destroy; - - ws->base.displaytarget_display = xm_displaytarget_display; - - return &ws->base; -} - - -static struct pipe_screen * -xlib_create_llvmpipe_screen( void ) -{ - struct llvmpipe_winsys *winsys; - struct pipe_screen *screen; - - winsys = xlib_create_llvmpipe_winsys(); - if (winsys == NULL) - return NULL; - - screen = llvmpipe_create_screen(winsys); - if (screen == NULL) - goto fail; - - return screen; - -fail: - if (winsys) - winsys->destroy( winsys ); - - return NULL; -} - - -static void -xlib_llvmpipe_display_surface(struct xmesa_buffer *xm_buffer, - struct pipe_surface *surf) -{ - struct llvmpipe_texture *texture = llvmpipe_texture(surf->texture); - - assert(texture->dt); - if (texture->dt) - xm_llvmpipe_display(xm_buffer, texture->dt); -} - - -struct xm_driver xlib_llvmpipe_driver = -{ - .create_pipe_screen = xlib_create_llvmpipe_screen, - .display_surface = xlib_llvmpipe_display_surface -}; - - - -#endif /* GALLIUM_LLVMPIPE */ |