diff options
Diffstat (limited to 'src/gallium/winsys/xlib/xlib_softpipe.c')
| -rw-r--r-- | src/gallium/winsys/xlib/xlib_softpipe.c | 508 |
1 files changed, 0 insertions, 508 deletions
diff --git a/src/gallium/winsys/xlib/xlib_softpipe.c b/src/gallium/winsys/xlib/xlib_softpipe.c deleted file mode 100644 index 716338aef47..00000000000 --- a/src/gallium/winsys/xlib/xlib_softpipe.c +++ /dev/null @@ -1,508 +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 - */ - - -#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 "softpipe/sp_winsys.h" -#include "softpipe/sp_texture.h" - -#include "xlib.h" - -/** - * Subclass of pipe_buffer for Xlib winsys. - * Low-level OS/window system memory buffer - */ -struct xm_buffer -{ - struct pipe_buffer base; - boolean userBuffer; /** Is this a user-space buffer? */ - void *data; - void *mapped; - - XImage *tempImage; -#ifdef USE_XSHM - boolean shm; /** Is this a shared memory buffer? */ - XShmSegmentInfo shminfo; -#endif -}; - - -/** - * Subclass of pipe_winsys for Xlib winsys - */ -struct xmesa_pipe_winsys -{ - struct pipe_winsys base; -/* struct xmesa_visual *xm_visual; */ -}; - - - -/** Cast wrapper */ -static INLINE struct xm_buffer * -xm_buffer( struct pipe_buffer *buf ) -{ - return (struct xm_buffer *)buf; -} - - -/** - * 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_buffer *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_buffer *b, 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 *); - - b->tempImage = XShmCreateImage(xmb->xm_visual->display, - xmb->xm_visual->visinfo->visual, - xmb->xm_visual->visinfo->depth, - ZPixmap, - NULL, - &b->shminfo, - width, height); - if (b->tempImage == NULL) { - b->shm = FALSE; - return; - } - - - mesaXErrorFlag = 0; - old_handler = XSetErrorHandler(mesaHandleXError); - /* This may trigger the X protocol error we're ready to catch: */ - XShmAttach(xmb->xm_visual->display, &b->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(b->tempImage); - b->tempImage = NULL; - b->shm = FALSE; - (void) XSetErrorHandler(old_handler); - return; - } - - b->shm = TRUE; -} - -#endif /* USE_XSHM */ - - - -/* Most callbacks map direcly onto dri_bufmgr operations: - */ -static void * -xm_buffer_map(struct pipe_winsys *pws, struct pipe_buffer *buf, - unsigned flags) -{ - struct xm_buffer *xm_buf = xm_buffer(buf); - xm_buf->mapped = xm_buf->data; - return xm_buf->mapped; -} - -static void -xm_buffer_unmap(struct pipe_winsys *pws, struct pipe_buffer *buf) -{ - struct xm_buffer *xm_buf = xm_buffer(buf); - xm_buf->mapped = NULL; -} - -static void -xm_buffer_destroy(struct pipe_buffer *buf) -{ - struct xm_buffer *oldBuf = xm_buffer(buf); - - /* - * Note oldBuf->data may point to one of three things: - * 1. XShm shared memory image data - * 2. User-provided (wrapped) memory, see xm_user_buffer_create() - * 3. Regular, malloc'd memory - * We need to be careful with freeing that data now. - */ - - if (oldBuf->data) { -#ifdef USE_XSHM - if (oldBuf->shminfo.shmid >= 0) { - shmdt(oldBuf->shminfo.shmaddr); - shmctl(oldBuf->shminfo.shmid, IPC_RMID, 0); - - oldBuf->shminfo.shmid = -1; - oldBuf->shminfo.shmaddr = (char *) -1; - } - - if (oldBuf->shm) { - oldBuf->data = NULL; - } - - if (oldBuf->tempImage) { - XDestroyImage(oldBuf->tempImage); - oldBuf->tempImage = NULL; - } -#endif - - if (oldBuf->data && !oldBuf->userBuffer) { - /* this was regular malloc'd memory */ - align_free(oldBuf->data); - } - - oldBuf->data = NULL; - } - - free(oldBuf); -} - - -/** - * Display/copy the image in the surface into the X window specified - * by the XMesaBuffer. - */ -static void -xlib_softpipe_display_surface(struct xmesa_buffer *b, - struct pipe_surface *surf) -{ - XImage *ximage; - struct softpipe_texture *spt = softpipe_texture(surf->texture); - struct xm_buffer *xm_buf = xm_buffer(spt->buffer); - 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_buf->shm) - { - if (xm_buf->tempImage == NULL) - { - assert(util_format_get_blockwidth(surf->texture->format) == 1); - assert(util_format_get_blockheight(surf->texture->format) == 1); - alloc_shm_ximage(xm_buf, b, spt->stride[surf->level] / - util_format_get_blocksize(surf->texture->format), surf->height); - } - - ximage = xm_buf->tempImage; - ximage->data = xm_buf->data; - - /* _debug_printf("XSHM\n"); */ - XShmPutImage(b->xm_visual->display, b->drawable, b->gc, - ximage, 0, 0, 0, 0, surf->width, surf->height, False); - } - else -#endif - { - /* display image in Window */ - ximage = b->tempImage; - ximage->data = xm_buf->data; - - /* check that the XImage has been previously initialized */ - assert(ximage->format); - assert(ximage->bitmap_unit); - - /* update XImage's fields */ - ximage->width = surf->width; - ximage->height = surf->height; - ximage->bytes_per_line = spt->stride[surf->level]; - - /* _debug_printf("XPUT\n"); */ - XPutImage(b->xm_visual->display, b->drawable, b->gc, - ximage, 0, 0, 0, 0, surf->width, surf->height); - } -} - - -static void -xm_flush_frontbuffer(struct pipe_winsys *pws, - struct pipe_surface *surf, - void *context_private) -{ - /* - * The front color buffer is actually just another XImage buffer. - * This function copies that XImage to the actual X Window. - */ - XMesaContext xmctx = (XMesaContext) context_private; - xlib_softpipe_display_surface(xmctx->xm_buffer, surf); - xmesa_check_and_update_buffer_size(xmctx, xmctx->xm_buffer); -} - - - -static const char * -xm_get_name(struct pipe_winsys *pws) -{ - return "Xlib"; -} - - -static struct pipe_buffer * -xm_buffer_create(struct pipe_winsys *pws, - unsigned alignment, - unsigned usage, - unsigned size) -{ - struct xm_buffer *buffer = CALLOC_STRUCT(xm_buffer); - - pipe_reference_init(&buffer->base.reference, 1); - buffer->base.alignment = alignment; - buffer->base.usage = usage; - buffer->base.size = size; - - /* align to 16-byte multiple for Cell */ - buffer->data = align_malloc(size, max(alignment, 16)); - - return &buffer->base; -} - - -/** - * Create buffer which wraps user-space data. - */ -static struct pipe_buffer * -xm_user_buffer_create(struct pipe_winsys *pws, void *ptr, unsigned bytes) -{ - struct xm_buffer *buffer = CALLOC_STRUCT(xm_buffer); - pipe_reference_init(&buffer->base.reference, 1); - buffer->base.size = bytes; - buffer->userBuffer = TRUE; - buffer->data = ptr; - - return &buffer->base; -} - - -static struct pipe_buffer * -xm_surface_buffer_create(struct pipe_winsys *winsys, - unsigned width, unsigned height, - enum pipe_format format, - unsigned usage, - unsigned tex_usage, - unsigned *stride) -{ - const unsigned alignment = 64; - unsigned nblocksy, size; - - nblocksy = util_format_get_nblocksy(format, height); - *stride = align(util_format_get_stride(format, width), alignment); - size = *stride * nblocksy; - -#ifdef USE_XSHM - if (!debug_get_bool_option("XLIB_NO_SHM", FALSE)) - { - struct xm_buffer *buffer = CALLOC_STRUCT(xm_buffer); - - pipe_reference_init(&buffer->base.reference, 1); - buffer->base.alignment = alignment; - buffer->base.usage = usage; - buffer->base.size = size; - buffer->userBuffer = FALSE; - buffer->shminfo.shmid = -1; - buffer->shminfo.shmaddr = (char *) -1; - buffer->shm = TRUE; - - buffer->data = alloc_shm(buffer, size); - if (!buffer->data) - goto out; - - return &buffer->base; - - out: - if (buffer) - FREE(buffer); - } -#endif - - - return winsys->buffer_create(winsys, alignment, - usage, - size); -} - - -/* - * Fence functions - basically nothing to do, as we don't create any actual - * fence objects. - */ - -static void -xm_fence_reference(struct pipe_winsys *sws, struct pipe_fence_handle **ptr, - struct pipe_fence_handle *fence) -{ -} - - -static int -xm_fence_signalled(struct pipe_winsys *sws, struct pipe_fence_handle *fence, - unsigned flag) -{ - return 0; -} - - -static int -xm_fence_finish(struct pipe_winsys *sws, struct pipe_fence_handle *fence, - unsigned flag) -{ - return 0; -} - - - -static struct pipe_winsys * -xlib_create_softpipe_winsys( void ) -{ - static struct xmesa_pipe_winsys *ws = NULL; - - if (!ws) { - ws = CALLOC_STRUCT(xmesa_pipe_winsys); - - /* Fill in this struct with callbacks that pipe will need to - * communicate with the window system, buffer manager, etc. - */ - ws->base.buffer_create = xm_buffer_create; - ws->base.user_buffer_create = xm_user_buffer_create; - ws->base.buffer_map = xm_buffer_map; - ws->base.buffer_unmap = xm_buffer_unmap; - ws->base.buffer_destroy = xm_buffer_destroy; - - ws->base.surface_buffer_create = xm_surface_buffer_create; - - ws->base.fence_reference = xm_fence_reference; - ws->base.fence_signalled = xm_fence_signalled; - ws->base.fence_finish = xm_fence_finish; - - ws->base.flush_frontbuffer = xm_flush_frontbuffer; - ws->base.get_name = xm_get_name; - } - - return &ws->base; -} - - -static struct pipe_screen * -xlib_create_softpipe_screen( void ) -{ - struct pipe_winsys *winsys; - struct pipe_screen *screen; - - winsys = xlib_create_softpipe_winsys(); - if (winsys == NULL) - return NULL; - - screen = softpipe_create_screen(winsys); - if (screen == NULL) - goto fail; - - return screen; - -fail: - if (winsys) - winsys->destroy( winsys ); - - return NULL; -} - - -struct xm_driver xlib_softpipe_driver = -{ - .create_pipe_screen = xlib_create_softpipe_screen, - .display_surface = xlib_softpipe_display_surface -}; - - - |