diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/gallium/winsys/xlib/xlib_softpipe.c | 98 |
1 files changed, 53 insertions, 45 deletions
diff --git a/src/gallium/winsys/xlib/xlib_softpipe.c b/src/gallium/winsys/xlib/xlib_softpipe.c index 44b8464518..1de93c4e8c 100644 --- a/src/gallium/winsys/xlib/xlib_softpipe.c +++ b/src/gallium/winsys/xlib/xlib_softpipe.c @@ -75,9 +75,6 @@ struct xmesa_pipe_winsys { struct pipe_winsys base; /* struct xmesa_visual *xm_visual; */ -#ifdef USE_XSHM - int shm; -#endif }; @@ -93,11 +90,6 @@ xm_buffer( struct pipe_buffer *buf ) /** * X Shared Memory Image extension code */ -#ifdef USE_XSHM -#define XSHM_ENABLED(b) ((b)->shm) -#else -#define XSHM_ENABLED(b) 0 -#endif #ifdef USE_XSHM @@ -116,23 +108,23 @@ mesaHandleXError(Display *dpy, XErrorEvent *event) } -static GLboolean alloc_shm(struct xm_buffer *buf, unsigned size) +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 GL_FALSE; + return NULL; } shminfo->shmaddr = (char *) shmat(shminfo->shmid, 0, 0); if (shminfo->shmaddr == (char *) -1) { shmctl(shminfo->shmid, IPC_RMID, 0); - return GL_FALSE; + return NULL; } shminfo->readOnly = False; - return GL_TRUE; + return shminfo->shmaddr; } @@ -258,25 +250,30 @@ xlib_softpipe_display_surface(struct xmesa_buffer *b, return; #ifdef USE_XSHM - if (XSHM_ENABLED(xm_buf) && (xm_buf->tempImage == NULL)) { - assert(surf->texture->block.width == 1); - assert(surf->texture->block.height == 1); - alloc_shm_ximage(xm_buf, b, spt->stride[surf->level] / - surf->texture->block.size, surf->height); - } -#endif + if (xm_buf->shm) + { + if (xm_buf->tempImage == NULL) + { + assert(surf->texture->block.width == 1); + assert(surf->texture->block.height == 1); + alloc_shm_ximage(xm_buf, b, spt->stride[surf->level] / + surf->texture->block.size, surf->height); + } - ximage = (XSHM_ENABLED(xm_buf)) ? xm_buf->tempImage : b->tempImage; - ximage->data = xm_buf->data; + ximage = xm_buf->tempImage; + ximage->data = xm_buf->data; - /* display image in Window */ -#ifdef USE_XSHM - if (XSHM_ENABLED(xm_buf)) { + /* _debug_printf("XSHM\n"); */ XShmPutImage(b->xm_visual->display, b->drawable, b->gc, ximage, 0, 0, 0, 0, surf->width, surf->height, False); - } else + } + 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); @@ -286,6 +283,7 @@ xlib_softpipe_display_surface(struct xmesa_buffer *b, 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); } @@ -321,21 +319,6 @@ xm_buffer_create(struct pipe_winsys *pws, unsigned size) { struct xm_buffer *buffer = CALLOC_STRUCT(xm_buffer); -#ifdef USE_XSHM - struct xmesa_pipe_winsys *xpws = (struct xmesa_pipe_winsys *) pws; - - buffer->shminfo.shmid = -1; - buffer->shminfo.shmaddr = (char *) -1; - - if (xpws->shm && (usage & PIPE_BUFFER_USAGE_PIXEL) != 0) { - buffer->shm = xpws->shm; - - if (alloc_shm(buffer, size)) { - buffer->data = buffer->shminfo.shmaddr; - buffer->shm = 1; - } - } -#endif pipe_reference_init(&buffer->base.reference, 1); buffer->base.alignment = alignment; @@ -362,9 +345,6 @@ xm_user_buffer_create(struct pipe_winsys *pws, void *ptr, unsigned bytes) buffer->base.size = bytes; buffer->userBuffer = TRUE; buffer->data = ptr; -#ifdef USE_XSHM - buffer->shm = 0; -#endif return &buffer->base; } @@ -379,16 +359,44 @@ xm_surface_buffer_create(struct pipe_winsys *winsys, { const unsigned alignment = 64; struct pipe_format_block block; - unsigned nblocksx, nblocksy; + unsigned nblocksx, nblocksy, size; pf_get_block(format, &block); nblocksx = pf_get_nblocksx(&block, width); nblocksy = pf_get_nblocksy(&block, height); *stride = align(nblocksx * block.size, 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, - *stride * nblocksy); + size); } |