diff options
Diffstat (limited to 'src/gallium/winsys')
| -rw-r--r-- | src/gallium/winsys/xlib/xlib_brw_context.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/src/gallium/winsys/xlib/xlib_brw_context.c b/src/gallium/winsys/xlib/xlib_brw_context.c new file mode 100644 index 00000000000..fc9addd09e3 --- /dev/null +++ b/src/gallium/winsys/xlib/xlib_brw_context.c @@ -0,0 +1,209 @@ +/************************************************************************** + * + * 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" */ + +#include "pipe/internal/p_winsys_screen.h" +#include "pipe/p_inlines.h" +#include "util/u_math.h" +#include "util/u_memory.h" +#include "i965simple/brw_winsys.h" +#include "xlib_brw_aub.h" +#include "xlib_brw.h" + + + + +#define XBCWS_BATCHBUFFER_SIZE 1024 + + +/* The backend to the brw driver (ie struct brw_winsys) is actually a + * per-context entity. + */ +struct xlib_brw_context_winsys { + struct brw_winsys brw_context_winsys; /**< batch buffer funcs */ + struct aub_context *aub; + + struct pipe_winsys *pipe_winsys; + + unsigned batch_data[XBCWS_BATCHBUFFER_SIZE]; + unsigned batch_nr; + unsigned batch_size; + unsigned batch_alloc; +}; + + +/* Turn a brw_winsys into an xlib_brw_context_winsys: + */ +static inline struct xlib_brw_context_winsys * +xlib_brw_context_winsys( struct brw_winsys *sws ) +{ + return (struct xlib_brw_context_winsys *)sws; +} + + +/* Simple batchbuffer interface: + */ + +static unsigned *xbcws_batch_start( struct brw_winsys *sws, + unsigned dwords, + unsigned relocs ) +{ + struct xlib_brw_context_winsys *xbcws = xlib_brw_context_winsys(sws); + + if (xbcws->batch_size < xbcws->batch_nr + dwords) + return NULL; + + xbcws->batch_alloc = xbcws->batch_nr + dwords; + return (void *)1; /* not a valid pointer! */ +} + +static void xbcws_batch_dword( struct brw_winsys *sws, + unsigned dword ) +{ + struct xlib_brw_context_winsys *xbcws = xlib_brw_context_winsys(sws); + + assert(xbcws->batch_nr < xbcws->batch_alloc); + xbcws->batch_data[xbcws->batch_nr++] = dword; +} + +static void xbcws_batch_reloc( struct brw_winsys *sws, + struct pipe_buffer *buf, + unsigned access_flags, + unsigned delta ) +{ + struct xlib_brw_context_winsys *xbcws = xlib_brw_context_winsys(sws); + + assert(xbcws->batch_nr < xbcws->batch_alloc); + xbcws->batch_data[xbcws->batch_nr++] = + ( xlib_brw_get_buffer_offset( NULL, buf, access_flags ) + + delta ); +} + +static void xbcws_batch_end( struct brw_winsys *sws ) +{ + struct xlib_brw_context_winsys *xbcws = xlib_brw_context_winsys(sws); + + assert(xbcws->batch_nr <= xbcws->batch_alloc); + xbcws->batch_alloc = 0; +} + +static void xbcws_batch_flush( struct brw_winsys *sws, + struct pipe_fence_handle **fence ) +{ + struct xlib_brw_context_winsys *xbcws = xlib_brw_context_winsys(sws); + assert(xbcws->batch_nr <= xbcws->batch_size); + + if (xbcws->batch_nr) { + xlib_brw_commands_aub( xbcws->pipe_winsys, + xbcws->batch_data, + xbcws->batch_nr ); + } + + xbcws->batch_nr = 0; +} + + + +/* Really a per-device function, just pass through: + */ +static unsigned xbcws_get_buffer_offset( struct brw_winsys *sws, + struct pipe_buffer *buf, + unsigned access_flags ) +{ + struct xlib_brw_context_winsys *xbcws = xlib_brw_context_winsys(sws); + + return xlib_brw_get_buffer_offset( xbcws->pipe_winsys, + buf, + access_flags ); +} + + +/* Really a per-device function, just pass through: + */ +static void xbcws_buffer_subdata_typed( struct brw_winsys *sws, + struct pipe_buffer *buf, + unsigned long offset, + unsigned long size, + const void *data, + unsigned data_type ) +{ + struct xlib_brw_context_winsys *xbcws = xlib_brw_context_winsys(sws); + + xlib_brw_buffer_subdata_typed( xbcws->pipe_winsys, + buf, + offset, + size, + data, + data_type ); +} + + +/** + * Create i965 hardware rendering context, but plugged into a + * dump-to-aubfile backend. + */ +struct pipe_context * +xlib_create_brw_context( struct pipe_screen *screen, + void *unused ) +{ + struct xlib_brw_context_winsys *xbcws = CALLOC_STRUCT( xlib_brw_context_winsys ); + + /* Fill in this struct with callbacks that i965simple will need to + * communicate with the window system, buffer manager, etc. + */ + xbcws->brw_context_winsys.batch_start = xbcws_batch_start; + xbcws->brw_context_winsys.batch_dword = xbcws_batch_dword; + xbcws->brw_context_winsys.batch_reloc = xbcws_batch_reloc; + xbcws->brw_context_winsys.batch_end = xbcws_batch_end; + xbcws->brw_context_winsys.batch_flush = xbcws_batch_flush; + xbcws->brw_context_winsys.buffer_subdata_typed = xbcws_buffer_subdata_typed; + xbcws->brw_context_winsys.get_buffer_offset = xbcws_get_buffer_offset; + + xbcws->pipe_winsys = screen->winsys; /* redundant */ + + xbcws->batch_size = XBCWS_BATCHBUFFER_SIZE; + + /* Create the i965simple context: + */ +#ifdef GALLIUM_CELL + return NULL; +#else + return brw_create( screen, + &xbcws->brw_context_winsys, + 0 ); +#endif +} |