| /************************************************************************** |
| * |
| * 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 |
| } |