diff options
Diffstat (limited to 'src/mesa/drivers/dri/intel_winsys/intel_pipe_softpipe.c')
| -rw-r--r-- | src/mesa/drivers/dri/intel_winsys/intel_pipe_softpipe.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel_winsys/intel_pipe_softpipe.c b/src/mesa/drivers/dri/intel_winsys/intel_pipe_softpipe.c new file mode 100644 index 0000000000..ef47744358 --- /dev/null +++ b/src/mesa/drivers/dri/intel_winsys/intel_pipe_softpipe.c @@ -0,0 +1,184 @@ +/************************************************************************** + * + * Copyright 2006 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 <keithw-at-tungstengraphics-dot-com> + */ + +#include <stdlib.h> +#include <xf86drm.h> +#include "dri_bufpool.h" +#include "dri_bufmgr.h" + +/* #include "errno.h" */ +/* #include "string.h" */ +/* #include "imports.h" */ + +#include "intel_context.h" + +#include "pipe/softpipe/sp_winsys.h" + + +struct intel_softpipe_winsys { + struct softpipe_winsys sws; + struct intel_context *intel; +}; + + + +/* Turn the softpipe opaque buffer pointer into a dri_bufmgr opaque + * buffer pointer... + */ +static inline struct _DriBufferObject * +dri_bo( struct pipe_buffer_handle *bo ) +{ + return (struct _DriBufferObject *)bo; +} + +static inline struct pipe_buffer_handle * +pipe_bo( struct _DriBufferObject *bo ) +{ + return (struct pipe_buffer_handle *)bo; +} + +/* Turn a softpipe winsys into an intel/softpipe winsys: + */ +static inline struct intel_softpipe_winsys * +intel_softpipe_winsys( struct softpipe_winsys *sws ) +{ + return (struct intel_softpipe_winsys *)sws; +} + + +/* Most callbacks map direcly onto dri_bufmgr operations: + */ +static void *intel_buffer_map(struct softpipe_winsys *sws, + struct pipe_buffer_handle *buf ) +{ + return driBOMap( dri_bo(buf), + DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0 ); +} + +static void intel_buffer_unmap(struct softpipe_winsys *sws, + struct pipe_buffer_handle *buf) +{ + driBOUnmap( dri_bo(buf) ); +} + + +static struct pipe_buffer_handle * +intel_buffer_reference(struct softpipe_winsys *sws, + struct pipe_buffer_handle *buf) +{ + return pipe_bo( driBOReference( dri_bo(buf) ) ); +} + +static void intel_buffer_unreference(struct softpipe_winsys *sws, + struct pipe_buffer_handle **buf) +{ + if (*buf) { + driBOUnReference( dri_bo(*buf) ); + *buf = NULL; + } +} + +/* Grabs the hardware lock! + */ +static void intel_buffer_data(struct softpipe_winsys *sws, + struct pipe_buffer_handle *buf, + unsigned size, const void *data ) +{ + struct intel_context *intel = intel_softpipe_winsys(sws)->intel; + + LOCK_HARDWARE( intel ); + driBOData( dri_bo(buf), size, data, 0 ); + UNLOCK_HARDWARE( intel ); +} + +static void intel_buffer_subdata(struct softpipe_winsys *sws, + struct pipe_buffer_handle *buf, + unsigned long offset, + unsigned long size, + const void *data) +{ + driBOSubData( dri_bo(buf), offset, size, data ); +} + +static void intel_buffer_get_subdata(struct softpipe_winsys *sws, + struct pipe_buffer_handle *buf, + unsigned long offset, + unsigned long size, + void *data) +{ + driBOGetSubData( dri_bo(buf), offset, size, data ); +} + +/* Softpipe has no concept of pools. We choose the tex/region pool + * for all buffers. + */ +static struct pipe_buffer_handle * +intel_create_buffer(struct softpipe_winsys *sws, + unsigned alignment) +{ + struct intel_context *intel = intel_softpipe_winsys(sws)->intel; + struct _DriBufferObject *buffer; + + LOCK_HARDWARE( intel ); + driGenBuffers( intel->intelScreen->regionPool, + "softpipe buffer", 1, &buffer, alignment, 0, 0 ); + UNLOCK_HARDWARE( intel ); + + return pipe_bo(buffer); +} + + +struct pipe_context * +intel_create_softpipe( struct intel_context *intel ) +{ + struct intel_softpipe_winsys *isws = CALLOC_STRUCT( intel_softpipe_winsys ); + + /* Fill in this struct with callbacks that softpipe will need to + * communicate with the window system, buffer manager, etc. + * + * Softpipe would be happy with a malloc based memory manager, but + * the SwapBuffers implementation in this winsys driver requires + * that rendering be done to an appropriate _DriBufferObject. + */ + isws->sws.create_buffer = intel_create_buffer; + isws->sws.buffer_map = intel_buffer_map; + isws->sws.buffer_unmap = intel_buffer_unmap; + isws->sws.buffer_reference = intel_buffer_reference; + isws->sws.buffer_unreference = intel_buffer_unreference; + isws->sws.buffer_data = intel_buffer_data; + isws->sws.buffer_subdata = intel_buffer_subdata; + isws->sws.buffer_get_subdata = intel_buffer_get_subdata; + isws->intel = intel; + + /* Create the softpipe context: + */ + return softpipe_create( &isws->sws ); +} |