diff options
author | Keith Whitwell <keith@tungstengraphics.com> | 2008-09-11 16:05:15 +0100 |
---|---|---|
committer | Keith Whitwell <keith@tungstengraphics.com> | 2008-09-11 16:05:15 +0100 |
commit | 0397b2bb41b0f337af2949a15bcd7d0e7e8a7dc1 (patch) | |
tree | 732c93d74ed806942a13bf15575a61aa4f001253 /src/gallium/winsys/xlib/xm_winsys.c | |
parent | 80af50b35b5a4e8890e15b28940576f8a1ac1476 (diff) | |
parent | e6887a5752774c18cf527477fdd3e57e4893ff3b (diff) |
Merge branch 'gallium-0.1' into gallium-0.2
A first attempt at moving gallium onto a branch directly off master...
It will be interesting to see how much work this takes to get running.
Have resolved the conflicts semi-arbitarily, not compiled or tested.
Conflicts:
.gitignore
Makefile
configs/config.mgw
configs/darwin
configs/darwin-x86ppc
configs/default
configs/freebsd-dri
configs/linux-dri
configs/linux-dri-xcb
configs/linux-fbdev
configs/linux-static
configs/linux-x86-64-static
configs/linux-x86-static
doxygen/Makefile
include/GL/gl.h
progs/demos/Makefile
progs/demos/descrip.mms
progs/demos/texenv.c
progs/egl/.gitignore
progs/egl/Makefile
progs/glsl/.gitignore
progs/glsl/Makefile
progs/glsl/convolutions.c
progs/samples/Makefile.mgw
progs/tests/.gitignore
progs/trivial/.gitignore
progs/trivial/point-param.c
progs/trivial/tri.c
progs/xdemos/.gitignore
progs/xdemos/glthreads.c
src/egl/drivers/demo/Makefile
src/egl/drivers/dri/Makefile
src/egl/main/Makefile
src/glu/Makefile
src/glu/sgi/Makefile
src/glu/sgi/Makefile.mgw
src/glut/glx/Makefile.mgw
src/glut/os2/WarpWin.cpp
src/glut/os2/glut_cindex.cpp
src/glut/os2/glut_gamemode.cpp
src/glut/os2/glut_win.cpp
src/glut/os2/glut_winmisc.cpp
src/glut/os2/os2_glx.cpp
src/glut/os2/os2_menu.cpp
src/glut/os2/os2_winproc.cpp
src/glw/Makefile
src/glx/x11/dri_glx.c
src/glx/x11/glxext.c
src/mesa/Makefile
src/mesa/Makefile.mgw
src/mesa/descrip.mms
src/mesa/drivers/beos/Makefile
src/mesa/drivers/common/descrip.mms
src/mesa/drivers/common/driverfuncs.c
src/mesa/drivers/directfb/Makefile
src/mesa/drivers/dri/Makefile.template
src/mesa/drivers/dri/common/dri_bufmgr.c
src/mesa/drivers/dri/common/dri_bufmgr.h
src/mesa/drivers/dri/common/dri_util.c
src/mesa/drivers/dri/common/extension_helper.h
src/mesa/drivers/dri/common/mmio.h
src/mesa/drivers/dri/common/utils.c
src/mesa/drivers/dri/common/utils.h
src/mesa/drivers/dri/glcore/Makefile
src/mesa/drivers/dri/i810/i810screen.c
src/mesa/drivers/dri/i915/intel_ioctl.c
src/mesa/drivers/dri/i915/intel_ioctl.h
src/mesa/drivers/dri/i915/intel_screen.c
src/mesa/drivers/dri/i915/server/i830_common.h
src/mesa/drivers/dri/i915/server/i830_dri.h
src/mesa/drivers/dri/i965/intel_screen.c
src/mesa/drivers/dri/i965/server/i830_common.h
src/mesa/drivers/dri/i965/server/i830_dri.h
src/mesa/drivers/dri/mach64/mach64_screen.c
src/mesa/drivers/dri/nouveau/nouveau_context.h
src/mesa/drivers/dri/nouveau/nouveau_fifo.c
src/mesa/drivers/dri/nouveau/nouveau_fifo.h
src/mesa/drivers/dri/nouveau/nouveau_screen.c
src/mesa/drivers/dri/nouveau/nouveau_screen.h
src/mesa/drivers/dri/r128/r128_tex.h
src/mesa/drivers/dri/savage/savageioctl.h
src/mesa/drivers/fbdev/Makefile
src/mesa/drivers/osmesa/Makefile
src/mesa/drivers/osmesa/descrip.mms
src/mesa/drivers/x11/Makefile
src/mesa/drivers/x11/descrip.mms
src/mesa/drivers/x11/xm_dd.c
src/mesa/glapi/glapi.c
src/mesa/glapi/glthread.c
src/mesa/main/api_validate.c
src/mesa/main/attrib.c
src/mesa/main/bufferobj.c
src/mesa/main/bufferobj.h
src/mesa/main/buffers.c
src/mesa/main/config.h
src/mesa/main/context.c
src/mesa/main/descrip.mms
src/mesa/main/drawpix.c
src/mesa/main/enums.c
src/mesa/main/fbobject.c
src/mesa/main/glheader.h
src/mesa/main/imports.c
src/mesa/main/mipmap.c
src/mesa/main/mm.c
src/mesa/main/mm.h
src/mesa/main/mtypes.h
src/mesa/main/points.c
src/mesa/main/sources
src/mesa/main/state.c
src/mesa/main/texcompress_fxt1.c
src/mesa/main/texenvprogram.c
src/mesa/main/texobj.c
src/mesa/main/texstate.c
src/mesa/main/texstore.c
src/mesa/math/descrip.mms
src/mesa/shader/arbprogram.c
src/mesa/shader/descrip.mms
src/mesa/shader/prog_execute.c
src/mesa/shader/prog_statevars.c
src/mesa/shader/prog_statevars.h
src/mesa/shader/prog_uniform.c
src/mesa/shader/program.c
src/mesa/shader/program.h
src/mesa/shader/shader_api.c
src/mesa/shader/slang/descrip.mms
src/mesa/shader/slang/library/slang_vertex_builtin_gc.h
src/mesa/sources
src/mesa/swrast/descrip.mms
src/mesa/swrast/s_drawpix.c
src/mesa/swrast/s_fragprog.c
src/mesa/swrast/s_readpix.c
src/mesa/swrast/s_span.c
src/mesa/swrast_setup/descrip.mms
src/mesa/tnl/descrip.mms
src/mesa/tnl/t_context.h
src/mesa/tnl/t_vp_build.c
src/mesa/tnl/tnl.h
src/mesa/vbo/descrip.mms
src/mesa/vbo/vbo_context.c
src/mesa/vbo/vbo_exec_array.c
src/mesa/x86-64/xform4.S
src/mesa/x86/rtasm/x86sse.c
src/mesa/x86/rtasm/x86sse.h
windows/VC6/progs/glut/glut.dsp
windows/VC7/mesa/gdi/gdi.vcproj
windows/VC7/mesa/glu/glu.vcproj
windows/VC7/mesa/mesa.sln
windows/VC7/mesa/mesa/mesa.vcproj
windows/VC7/mesa/osmesa/osmesa.vcproj
windows/VC7/progs/glut/glut.vcproj
windows/VC8/mesa/gdi/gdi.vcproj
windows/VC8/mesa/glu/glu.vcproj
windows/VC8/mesa/mesa.sln
windows/VC8/mesa/mesa/mesa.vcproj
windows/VC8/progs/glut/glut.vcproj
Diffstat (limited to 'src/gallium/winsys/xlib/xm_winsys.c')
-rw-r--r-- | src/gallium/winsys/xlib/xm_winsys.c | 672 |
1 files changed, 672 insertions, 0 deletions
diff --git a/src/gallium/winsys/xlib/xm_winsys.c b/src/gallium/winsys/xlib/xm_winsys.c new file mode 100644 index 0000000000..68ead7f528 --- /dev/null +++ b/src/gallium/winsys/xlib/xm_winsys.c @@ -0,0 +1,672 @@ +/************************************************************************** + * + * 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 "glxheader.h" +#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_inlines.h" +#include "util/u_math.h" +#include "util/u_memory.h" +#include "softpipe/sp_winsys.h" + +#ifdef GALLIUM_CELL +#include "cell/ppu/cell_context.h" +#include "cell/ppu/cell_screen.h" +#include "cell/ppu/cell_winsys.h" +#else +#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 +{ + struct pipe_buffer base; + 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 +}; + + +/** + * Subclass of pipe_winsys for Xlib winsys + */ +struct xmesa_pipe_winsys +{ + 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; +} + + +/** + * X Shared Memory Image extension code + */ +#if defined(USE_XSHM) && !defined(XFree86Server) + +#define XSHM_ENABLED(b) ((b)->shm) + +static volatile int mesaXErrorFlag = 0; + +/** + * Catches potential Xlib errors. + */ +static int +mesaHandleXError(XMesaDisplay *dpy, XErrorEvent *event) +{ + (void) dpy; + (void) event; + mesaXErrorFlag = 1; + return 0; +} + + +static GLboolean 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; + } + + 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; +} + + +/** + * 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... + */ +#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 */ + + + + +/* 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_winsys *pws, + struct pipe_buffer *buf) +{ + struct xm_buffer *oldBuf = xm_buffer(buf); + + if (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; + } + + free(oldBuf); +} + + +/** + * Display a surface that's in a tiled configuration. That is, all the + * pixels for a TILE_SIZExTILE_SIZE block are contiguous in memory. + */ +static void +xmesa_display_surface_tiled(XMesaBuffer b, const struct pipe_surface *surf) +{ + XImage *ximage; + struct xm_buffer *xm_buf = xm_buffer(surf->buffer); + const uint tilesPerRow = (surf->width + TILE_SIZE - 1) / TILE_SIZE; + uint x, y; + + /* check that the XImage has been previously initialized */ + assert(ximage->format); + assert(ximage->bitmap_unit); + + 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; + + 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; + 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; + + if (XSHM_ENABLED(xm_buf)) { +#if defined(USE_XSHM) && !defined(XFree86Server) + XShmPutImage(b->xm_visual->display, b->drawable, b->gc, + ximage, 0, 0, x, y, TILE_SIZE, TILE_SIZE, False); +#endif + } else { + XPutImage(b->xm_visual->display, b->drawable, b->gc, + ximage, 0, 0, dx, dy, TILE_SIZE, TILE_SIZE); + } + } + } +} + + +/** + * Display/copy the image in the surface into the X window specified + * by the XMesaBuffer. + */ +void +xmesa_display_surface(XMesaBuffer b, const struct pipe_surface *surf) +{ + XImage *ximage; + struct xm_buffer *xm_buf = xm_buffer(surf->buffer); + 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 (tileSize) { + xmesa_display_surface_tiled(b, surf); + return; + } + + 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); + } + + ximage = (XSHM_ENABLED(xm_buf)) ? xm_buf->tempImage : b->tempImage; + ximage->data = xm_buf->data; + + /* display image in Window */ + 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); + } +} + + +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; + xmesa_display_surface(xmctx->xm_buffer, surf); +} + + + +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); +#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; + + +#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; +} + + +/** + * 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); + buffer->base.refcount = 1; + buffer->base.size = bytes; + buffer->userBuffer = TRUE; + buffer->data = ptr; + buffer->shm = 0; + + return &buffer->base; +} + + + +/** + * Round n up to next multiple. + */ +static INLINE unsigned +round_up(unsigned n, unsigned multiple) +{ + return (n + multiple - 1) & ~(multiple - 1); +} + +static int +xm_surface_alloc_storage(struct pipe_winsys *winsys, + struct pipe_surface *surf, + unsigned width, unsigned height, + enum pipe_format format, + unsigned flags, + unsigned tex_usage) +{ + const unsigned alignment = 64; + + surf->width = width; + surf->height = height; + surf->format = format; + 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, +#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; + + return 0; +} + + +/** + * Called via winsys->surface_alloc() to create new surfaces. + */ +static struct pipe_surface * +xm_surface_alloc(struct pipe_winsys *ws) +{ + struct pipe_surface *surface = CALLOC_STRUCT(pipe_surface); + + assert(ws); + + surface->refcount = 1; + surface->winsys = ws; + + return surface; +} + + + +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); + 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. + * For Xlib, this is a singleton object. + * Nothing special for the Xlib driver so no subclassing or anything. + */ +struct pipe_winsys * +xmesa_get_pipe_winsys_aub(struct xmesa_visual *xm_vis) +{ + static struct xmesa_pipe_winsys *ws = NULL; + + if (!ws) { + ws = (struct xmesa_pipe_winsys *) xmesa_create_pipe_winsys_aub(); + } + return &ws->base; +} + + +static struct pipe_winsys * +xmesa_get_pipe_winsys(struct xmesa_visual *xm_vis) +{ + static struct xmesa_pipe_winsys *ws = NULL; + + if (!ws) { + ws = CALLOC_STRUCT(xmesa_pipe_winsys); + + ws->xm_visual = xm_vis; + ws->shm = xmesa_check_for_xshm(xm_vis->display); + + /* 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 &ws->base; +} + + +struct pipe_context * +xmesa_create_pipe_context(XMesaContext xmesa, uint pixelformat) +{ + 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); + } + else +#endif + { + struct pipe_screen *screen = softpipe_create_screen(pws); + + 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; +} |