X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;ds=sidebyside;f=src%2Fgallium%2Fwinsys%2Fxlib%2Fxm_winsys.c;h=acb5ad8f714ea0299310e23003a019b5ce7f5b48;hb=cf85e413ad7672c1cef73215222ca1caa8e48b30;hp=018cf01cd6d369cdb1250d9d2c336abb4dad632e;hpb=f04736c8be5d30c510e1799ac0c8fa5173516513;p=mesa.git diff --git a/src/gallium/winsys/xlib/xm_winsys.c b/src/gallium/winsys/xlib/xm_winsys.c index 018cf01cd6d..acb5ad8f714 100644 --- a/src/gallium/winsys/xlib/xm_winsys.c +++ b/src/gallium/winsys/xlib/xm_winsys.c @@ -37,12 +37,14 @@ #include "xmesaP.h" #undef ASSERT +#undef Elements #include "pipe/p_winsys.h" #include "pipe/p_format.h" #include "pipe/p_context.h" -#include "pipe/p_util.h" #include "pipe/p_inlines.h" +#include "util/u_math.h" +#include "util/u_memory.h" #include "softpipe/sp_winsys.h" #ifdef GALLIUM_CELL @@ -53,10 +55,16 @@ #define TILE_SIZE 32 /* avoid compilation errors */ #endif +#ifdef GALLIUM_TRACE +#include "trace/tr_screen.h" +#include "trace/tr_context.h" +#endif + #include "xm_winsys_aub.h" /** + * Subclass of pipe_buffer for Xlib winsys. * Low-level OS/window system memory buffer */ struct xm_buffer @@ -65,54 +73,157 @@ struct xm_buffer boolean userBuffer; /** Is this a user-space buffer? */ void *data; void *mapped; + + XImage *tempImage; + int shm; +#if defined(USE_XSHM) && !defined(XFree86Server) + XShmSegmentInfo shminfo; +#endif }; -struct xmesa_surface +/** + * Subclass of pipe_winsys for Xlib winsys + */ +struct xmesa_pipe_winsys { - struct pipe_surface surface; - - int tileSize; + struct pipe_winsys base; + struct xmesa_visual *xm_visual; + int shm; }; + +/** Cast wrapper */ +static INLINE struct xm_buffer * +xm_buffer( struct pipe_buffer *buf ) +{ + return (struct xm_buffer *)buf; +} + + /** - * Derived from softpipe_winsys. - * We just need one extra field which indicates the pixel format to use for - * drawing surfaces so that we're compatible with the XVisual/window format. + * X Shared Memory Image extension code */ -struct xmesa_softpipe_winsys -{ - struct softpipe_winsys spws; - enum pipe_format pixelformat; -}; +#if defined(USE_XSHM) && !defined(XFree86Server) +#define XSHM_ENABLED(b) ((b)->shm) +static volatile int mesaXErrorFlag = 0; -/** Cast wrapper */ -static INLINE struct xmesa_surface * -xmesa_surface(struct pipe_surface *ps) +/** + * Catches potential Xlib errors. + */ +static int +mesaHandleXError(XMesaDisplay *dpy, XErrorEvent *event) { -// assert(0); - return (struct xmesa_surface *) ps; + (void) dpy; + (void) event; + mesaXErrorFlag = 1; + return 0; } -/** cast wrapper */ -static INLINE struct xmesa_softpipe_winsys * -xmesa_softpipe_winsys(struct softpipe_winsys *spws) + +static GLboolean alloc_shm(struct xm_buffer *buf, unsigned size) { - return (struct xmesa_softpipe_winsys *) spws; + XShmSegmentInfo *const shminfo = & buf->shminfo; + + shminfo->shmid = shmget(IPC_PRIVATE, size, IPC_CREAT|0777); + if (shminfo->shmid < 0) { + return GL_FALSE; + } + + shminfo->shmaddr = (char *) shmat(shminfo->shmid, 0, 0); + if (shminfo->shmaddr == (char *) -1) { + shmctl(shminfo->shmid, IPC_RMID, 0); + return GL_FALSE; + } + + shminfo->readOnly = False; + return GL_TRUE; } + /** - * Turn the softpipe opaque buffer pointer into a dri_bufmgr opaque - * buffer pointer... + * Allocate a shared memory XImage back buffer for the given XMesaBuffer. */ -static INLINE struct xm_buffer * -xm_buffer( struct pipe_buffer *buf ) +static void +alloc_shm_ximage(struct xm_buffer *b, struct xmesa_buffer *xmb, + unsigned width, unsigned height) { - return (struct xm_buffer *)buf; + /* + * 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... + */ +#if 0 + GC gc; +#endif + int (*old_handler)(XMesaDisplay *, 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 = 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, &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 = 0; + (void) XSetErrorHandler(old_handler); + return; + } + + + /* Finally, try an XShmPutImage to be really sure the extension works */ +#if 0 + gc = XCreateGC(xmb->xm_visual->display, xmb->drawable, 0, NULL); + XShmPutImage(xmb->xm_visual->display, xmb->drawable, gc, + b->tempImage, 0, 0, 0, 0, 1, 1 /*one pixel*/, False); + XSync(xmb->xm_visual->display, False); + XFreeGC(xmb->xm_visual->display, gc); + (void) XSetErrorHandler(old_handler); + if (mesaXErrorFlag) { + XFlush(xmb->xm_visual->display); + mesaXErrorFlag = 0; + XDestroyImage(b->tempImage); + b->tempImage = NULL; + b->shm = 0; + return; + } +#endif +} + +#else + +#define XSHM_ENABLED(b) 0 + +static void +alloc_shm_ximage(struct xm_buffer *b, struct xmesa_buffer *xmb, + unsigned width, unsigned height) +{ + b->shm = 0; } +#endif /* USE_XSHM */ + @@ -136,13 +247,27 @@ xm_buffer_unmap(struct pipe_winsys *pws, struct pipe_buffer *buf) static void xm_buffer_destroy(struct pipe_winsys *pws, - struct pipe_buffer *buf) + struct pipe_buffer *buf) { struct xm_buffer *oldBuf = xm_buffer(buf); if (oldBuf->data) { - if (!oldBuf->userBuffer) - align_free(oldBuf->data); +#if defined(USE_XSHM) && !defined(XFree86Server) + 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; + } + else +#endif + { + if (!oldBuf->userBuffer) { + align_free(oldBuf->data); + } + } + oldBuf->data = NULL; } @@ -150,6 +275,37 @@ xm_buffer_destroy(struct pipe_winsys *pws, } +/** + * For Cell. Basically, rearrange the pixels/quads from this layout: + * +--+--+--+--+ + * |p0|p1|p2|p3|.... + * +--+--+--+--+ + * + * to this layout: + * +--+--+ + * |p0|p1|.... + * +--+--+ + * |p2|p3| + * +--+--+ + */ +static void +twiddle_tile(const uint *tileIn, uint *tileOut) +{ + int y, x; + + for (y = 0; y < TILE_SIZE; y+=2) { + for (x = 0; x < TILE_SIZE; x+=2) { + int k = 4 * (y/2 * TILE_SIZE/2 + x/2); + tileOut[y * TILE_SIZE + (x + 0)] = tileIn[k]; + tileOut[y * TILE_SIZE + (x + 1)] = tileIn[k+1]; + tileOut[(y + 1) * TILE_SIZE + (x + 0)] = tileIn[k+2]; + tileOut[(y + 1) * TILE_SIZE + (x + 1)] = tileIn[k+3]; + } + } +} + + + /** * Display a surface that's in a tiled configuration. That is, all the * pixels for a TILE_SIZExTILE_SIZE block are contiguous in memory. @@ -157,34 +313,65 @@ xm_buffer_destroy(struct pipe_winsys *pws, static void xmesa_display_surface_tiled(XMesaBuffer b, const struct pipe_surface *surf) { - XImage *ximage = b->tempImage; + XImage *ximage; struct xm_buffer *xm_buf = xm_buffer(surf->buffer); const uint tilesPerRow = (surf->width + TILE_SIZE - 1) / TILE_SIZE; uint x, y; + if (XSHM_ENABLED(xm_buf) && (xm_buf->tempImage == NULL)) { + alloc_shm_ximage(xm_buf, b, TILE_SIZE, TILE_SIZE); + } + + ximage = (XSHM_ENABLED(xm_buf)) ? xm_buf->tempImage : b->tempImage; + /* check that the XImage has been previously initialized */ assert(ximage->format); assert(ximage->bitmap_unit); - /* update XImage's fields */ - ximage->width = TILE_SIZE; - ximage->height = TILE_SIZE; - ximage->bytes_per_line = TILE_SIZE * 4; + if (!XSHM_ENABLED(xm_buf)) { + /* update XImage's fields */ + ximage->width = TILE_SIZE; + ximage->height = TILE_SIZE; + ximage->bytes_per_line = TILE_SIZE * 4; + } for (y = 0; y < surf->height; y += TILE_SIZE) { for (x = 0; x < surf->width; x += TILE_SIZE) { - int dx = x; - int dy = y; + uint tmpTile[TILE_SIZE * TILE_SIZE]; int tx = x / TILE_SIZE; int ty = y / TILE_SIZE; int offset = ty * tilesPerRow + tx; - - offset *= 4 * TILE_SIZE * TILE_SIZE; - - ximage->data = (char *) xm_buf->data + offset; - - XPutImage(b->xm_visual->display, b->drawable, b->gc, - ximage, 0, 0, dx, dy, TILE_SIZE, TILE_SIZE); + int w = TILE_SIZE; + int h = TILE_SIZE; + + if (y + h > surf->height) + h = surf->height - y; + if (x + w > surf->width) + w = surf->width - x; + + /* offset in pixels */ + offset *= TILE_SIZE * TILE_SIZE; + + if (0 && XSHM_ENABLED(xm_buf)) { + ximage->data = (char *) xm_buf->data + 4 * offset; + /* make copy of tile data */ + memcpy(tmpTile, (uint *) ximage->data, sizeof(tmpTile)); + /* twiddle from temp to ximage in shared memory */ + twiddle_tile(tmpTile, (uint *) ximage->data); + /* display image in shared memory */ +#if defined(USE_XSHM) && !defined(XFree86Server) + XShmPutImage(b->xm_visual->display, b->drawable, b->gc, + ximage, 0, 0, x, y, w, h, False); +#endif + } + else { + /* twiddle from ximage buffer to temp tile */ + twiddle_tile((uint *) xm_buf->data + offset, tmpTile); + /* display temp tile data */ + ximage->data = (char *) tmpTile; + XPutImage(b->xm_visual->display, b->drawable, b->gc, + ximage, 0, 0, x, y, w, h); + } } } } @@ -197,29 +384,58 @@ xmesa_display_surface_tiled(XMesaBuffer b, const struct pipe_surface *surf) void xmesa_display_surface(XMesaBuffer b, const struct pipe_surface *surf) { - XImage *ximage = b->tempImage; + XImage *ximage; struct xm_buffer *xm_buf = xm_buffer(surf->buffer); - const struct xmesa_surface *xm_surf - = xmesa_surface((struct pipe_surface *) surf); + static boolean no_swap = 0; + static boolean firsttime = 1; + static int tileSize = 0; + + if (firsttime) { + no_swap = getenv("SP_NO_RAST") != NULL; +#ifdef GALLIUM_CELL + if (!getenv("GALLIUM_NOCELL")) { + tileSize = 32; /** probably temporary */ + } +#endif + firsttime = 0; + } + + if (no_swap) + return; - if (xm_surf->tileSize) { + if (tileSize) { xmesa_display_surface_tiled(b, surf); return; } - /* check that the XImage has been previously initialized */ - assert(ximage->format); - assert(ximage->bitmap_unit); + if (XSHM_ENABLED(xm_buf) && (xm_buf->tempImage == NULL)) { + assert(surf->block.width == 1); + assert(surf->block.height == 1); + alloc_shm_ximage(xm_buf, b, surf->stride/surf->block.size, surf->height); + } - /* update XImage's fields */ - ximage->width = surf->width; - ximage->height = surf->height; - ximage->bytes_per_line = surf->pitch * (ximage->bits_per_pixel / 8); + ximage = (XSHM_ENABLED(xm_buf)) ? xm_buf->tempImage : b->tempImage; ximage->data = xm_buf->data; /* display image in Window */ - XPutImage(b->xm_visual->display, b->drawable, b->gc, - ximage, 0, 0, 0, 0, surf->width, surf->height); + if (XSHM_ENABLED(xm_buf)) { +#if defined(USE_XSHM) && !defined(XFree86Server) + XShmPutImage(b->xm_visual->display, b->drawable, b->gc, + ximage, 0, 0, 0, 0, surf->width, surf->height, False); +#endif + } else { + /* 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 = surf->stride; + + XPutImage(b->xm_visual->display, b->drawable, b->gc, + ximage, 0, 0, 0, 0, surf->width, surf->height); + } } @@ -228,10 +444,9 @@ xm_flush_frontbuffer(struct pipe_winsys *pws, struct pipe_surface *surf, void *context_private) { - /* The Xlib driver's front color surfaces are actually X Windows so - * this flush is a no-op. - * If we instead did front buffer rendering to a temporary XImage, - * this would be the place to copy the Ximage to the on-screen Window. + /* + * 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; xmesa_display_surface(xmctx->xm_buffer, surf); @@ -239,16 +454,6 @@ xm_flush_frontbuffer(struct pipe_winsys *pws, -static void -xm_printf(struct pipe_winsys *pws, const char *fmtString, ...) -{ - va_list args; - va_start( args, fmtString ); - vfprintf(stderr, fmtString, args); - va_end( args ); -} - - static const char * xm_get_name(struct pipe_winsys *pws) { @@ -263,13 +468,35 @@ xm_buffer_create(struct pipe_winsys *pws, unsigned size) { struct xm_buffer *buffer = CALLOC_STRUCT(xm_buffer); +#if defined(USE_XSHM) && !defined(XFree86Server) + struct xmesa_pipe_winsys *xpws = (struct xmesa_pipe_winsys *) pws; +#endif + buffer->base.refcount = 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)); + +#if defined(USE_XSHM) && !defined(XFree86Server) + 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; + } + } +#endif + + if (buffer->data == NULL) { + buffer->shm = 0; + + /* align to 16-byte multiple for Cell */ + buffer->data = align_malloc(size, max(alignment, 16)); + } return &buffer->base; } @@ -286,6 +513,7 @@ xm_user_buffer_create(struct pipe_winsys *pws, void *ptr, unsigned bytes) buffer->base.size = bytes; buffer->userBuffer = TRUE; buffer->data = ptr; + buffer->shm = 0; return &buffer->base; } @@ -306,24 +534,29 @@ xm_surface_alloc_storage(struct pipe_winsys *winsys, struct pipe_surface *surf, unsigned width, unsigned height, enum pipe_format format, - unsigned flags) + unsigned flags, + unsigned tex_usage) { const unsigned alignment = 64; surf->width = width; surf->height = height; surf->format = format; - surf->cpp = pf_get_size(format); - surf->pitch = round_up(width, alignment / surf->cpp); - -#ifdef GALLIUM_CELL /* XXX a bit of a hack */ - height = round_up(height, TILE_SIZE); -#endif + pf_get_block(format, &surf->block); + surf->nblocksx = pf_get_nblocksx(&surf->block, width); + surf->nblocksy = pf_get_nblocksy(&surf->block, height); + surf->stride = round_up(surf->nblocksx * surf->block.size, alignment); + surf->usage = flags; assert(!surf->buffer); surf->buffer = winsys->buffer_create(winsys, alignment, PIPE_BUFFER_USAGE_PIXEL, - surf->pitch * surf->cpp * height); +#ifdef GALLIUM_CELL /* XXX a bit of a hack */ + surf->stride * round_up(surf->nblocksy, TILE_SIZE)); +#else + surf->stride * surf->nblocksy); +#endif + if(!surf->buffer) return -1; @@ -332,26 +565,19 @@ xm_surface_alloc_storage(struct pipe_winsys *winsys, /** - * Called via pipe->surface_alloc() to create new surfaces (textures, - * renderbuffers, etc. + * Called via winsys->surface_alloc() to create new surfaces. */ static struct pipe_surface * xm_surface_alloc(struct pipe_winsys *ws) { - struct xmesa_surface *xms = CALLOC_STRUCT(xmesa_surface); + struct pipe_surface *surface = CALLOC_STRUCT(pipe_surface); assert(ws); - xms->surface.refcount = 1; - xms->surface.winsys = ws; - -#ifdef GALLIUM_CELL - if (!getenv("GALLIUM_NOCELL")) { - xms->tileSize = 32; /** probably temporary */ - } -#endif + surface->refcount = 1; + surface->winsys = ws; - return &xms->surface; + return surface; } @@ -360,16 +586,44 @@ static void xm_surface_release(struct pipe_winsys *winsys, struct pipe_surface **s) { struct pipe_surface *surf = *s; + assert(!surf->texture); surf->refcount--; if (surf->refcount == 0) { if (surf->buffer) - pipe_buffer_reference(winsys, &surf->buffer, NULL); + winsys_buffer_reference(winsys, &surf->buffer, NULL); free(surf); } *s = NULL; } +/* + * 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; +} + /** * Return pointer to a pipe_winsys object. @@ -377,95 +631,89 @@ xm_surface_release(struct pipe_winsys *winsys, struct pipe_surface **s) * Nothing special for the Xlib driver so no subclassing or anything. */ struct pipe_winsys * -xmesa_get_pipe_winsys_aub(void) +xmesa_get_pipe_winsys_aub(struct xmesa_visual *xm_vis) { - static struct pipe_winsys *ws = NULL; + static struct xmesa_pipe_winsys *ws = NULL; - if (!ws && getenv("XM_AUB")) { - ws = xmesa_create_pipe_winsys_aub(); - } - else if (!ws) { - ws = CALLOC_STRUCT(pipe_winsys); - - /* Fill in this struct with callbacks that pipe will need to - * communicate with the window system, buffer manager, etc. - */ - ws->buffer_create = xm_buffer_create; - ws->user_buffer_create = xm_user_buffer_create; - ws->buffer_map = xm_buffer_map; - ws->buffer_unmap = xm_buffer_unmap; - ws->buffer_destroy = xm_buffer_destroy; - - ws->surface_alloc = xm_surface_alloc; - ws->surface_alloc_storage = xm_surface_alloc_storage; - ws->surface_release = xm_surface_release; - - ws->flush_frontbuffer = xm_flush_frontbuffer; - ws->printf = xm_printf; - ws->get_name = xm_get_name; + if (!ws) { + ws = (struct xmesa_pipe_winsys *) xmesa_create_pipe_winsys_aub(); } - - return ws; + return &ws->base; } -/** - * Called via softpipe_winsys->is_format_supported(). - * This function is only called to test formats for front/back color surfaces. - * The winsys being queried will have been created at glXCreateContext - * time, with a pixel format corresponding to the context's visual. - */ -static boolean -xmesa_is_format_supported(struct softpipe_winsys *sws, - enum pipe_format format) +static struct pipe_winsys * +xmesa_get_pipe_winsys(struct xmesa_visual *xm_vis) { - struct xmesa_softpipe_winsys *xmws = xmesa_softpipe_winsys(sws); - return (format == xmws->pixelformat); -} + static struct xmesa_pipe_winsys *ws = NULL; + if (!ws) { + ws = CALLOC_STRUCT(xmesa_pipe_winsys); -/** - * Return pointer to a softpipe_winsys object. - */ -static struct softpipe_winsys * -xmesa_get_softpipe_winsys(uint pixelformat) -{ - struct xmesa_softpipe_winsys *xmws - = CALLOC_STRUCT(xmesa_softpipe_winsys); - if (!xmws) - return NULL; + ws->xm_visual = xm_vis; + ws->shm = xmesa_check_for_xshm(xm_vis->display); - xmws->spws.is_format_supported = xmesa_is_format_supported; - xmws->pixelformat = pixelformat; + /* 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_alloc = xm_surface_alloc; + ws->base.surface_alloc_storage = xm_surface_alloc_storage; + ws->base.surface_release = xm_surface_release; + + 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 &xmws->spws; + return &ws->base; } struct pipe_context * xmesa_create_pipe_context(XMesaContext xmesa, uint pixelformat) { - struct pipe_winsys *pws = xmesa_get_pipe_winsys_aub(); + struct pipe_winsys *pws; struct pipe_context *pipe; + if (getenv("XM_AUB")) { + pws = xmesa_get_pipe_winsys_aub(xmesa->xm_visual); + } + else { + pws = xmesa_get_pipe_winsys(xmesa->xm_visual); + } + #ifdef GALLIUM_CELL if (!getenv("GALLIUM_NOCELL")) { struct cell_winsys *cws = cell_get_winsys(pixelformat); struct pipe_screen *screen = cell_create_screen(pws); + pipe = cell_create_context(screen, cws); - if (pipe) - pipe->priv = xmesa; - return pipe; } else #endif { - struct softpipe_winsys *spws = xmesa_get_softpipe_winsys(pixelformat); struct pipe_screen *screen = softpipe_create_screen(pws); - pipe = softpipe_create( screen, pws, spws ); - if (pipe) - pipe->priv = xmesa; - return pipe; + pipe = softpipe_create(screen, pws, NULL); + +#ifdef GALLIUM_TRACE + screen = trace_screen_create(screen); + + pipe = trace_context_create(screen, pipe); +#endif } + + if (pipe) + pipe->priv = xmesa; + + return pipe; }