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/**************************************************************************
*
* 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 "intel_context.h"
#include "intel_batchbuffer.h"
#include "intel_pipe.h"
#include "pipe/i915simple/i915_winsys.h"
struct intel_i915_winsys {
struct i915_winsys winsys;
struct intel_context *intel;
};
/* Turn a i915simple winsys into an intel/i915simple winsys:
*/
static inline struct intel_i915_winsys *
intel_i915_winsys( struct i915_winsys *sws )
{
return (struct intel_i915_winsys *)sws;
}
/* Many of the winsys's are probably going to have a similar
* buffer-manager interface, as something almost identical is
* currently exposed in the pipe interface. Probably want to avoid
* endless repetition of this code somehow.
*/
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;
}
/* Most callbacks map direcly onto dri_bufmgr operations:
*/
static void *intel_i915_buffer_map(struct i915_winsys *sws,
struct pipe_buffer_handle *buf )
{
return driBOMap( dri_bo(buf),
DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0 );
}
static void intel_i915_buffer_unmap(struct i915_winsys *sws,
struct pipe_buffer_handle *buf)
{
driBOUnmap( dri_bo(buf) );
}
static struct pipe_buffer_handle *
intel_i915_buffer_reference(struct i915_winsys *sws,
struct pipe_buffer_handle *buf)
{
return pipe_bo( driBOReference( dri_bo(buf) ) );
}
static void intel_i915_buffer_unreference(struct i915_winsys *sws,
struct pipe_buffer_handle **buf)
{
if (*buf) {
driBOUnReference( dri_bo(*buf) );
*buf = NULL;
}
}
/* Grabs the hardware lock!
*/
static void intel_i915_buffer_data(struct i915_winsys *sws,
struct pipe_buffer_handle *buf,
unsigned size, const void *data )
{
struct intel_context *intel = intel_i915_winsys(sws)->intel;
LOCK_HARDWARE( intel );
driBOData( dri_bo(buf), size, data, 0 );
UNLOCK_HARDWARE( intel );
}
static void intel_i915_buffer_subdata(struct i915_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_i915_buffer_get_subdata(struct i915_winsys *sws,
struct pipe_buffer_handle *buf,
unsigned long offset,
unsigned long size,
void *data)
{
driBOGetSubData( dri_bo(buf), offset, size, data );
}
/* I915simple has no concept of pools. We choose the tex/region pool
* for all buffers.
*/
static struct pipe_buffer_handle *
intel_i915_buffer_create(struct i915_winsys *sws,
unsigned alignment)
{
struct intel_context *intel = intel_i915_winsys(sws)->intel;
struct _DriBufferObject *buffer;
LOCK_HARDWARE( intel );
driGenBuffers( intel->intelScreen->regionPool,
"i915simple buffer", 1, &buffer, alignment, 0, 0 );
UNLOCK_HARDWARE( intel );
return pipe_bo(buffer);
}
/* Simple batchbuffer interface:
*/
static unsigned *intel_i915_batch_start( struct i915_winsys *sws,
unsigned dwords,
unsigned relocs )
{
struct intel_context *intel = intel_i915_winsys(sws)->intel;
/* XXX: check relocs.
*/
if (intel_batchbuffer_space( intel->batch ) >= dwords * 4) {
/* XXX: Hmm, the driver can't really do much with this pointer:
*/
return intel->batch->ptr;
}
else
return NULL;
}
static void intel_i915_batch_dword( struct i915_winsys *sws,
unsigned dword )
{
struct intel_context *intel = intel_i915_winsys(sws)->intel;
intel_batchbuffer_emit_dword( intel->batch, dword );
}
static void intel_i915_batch_reloc( struct i915_winsys *sws,
struct pipe_buffer_handle *buf,
unsigned access_flags,
unsigned delta )
{
struct intel_context *intel = intel_i915_winsys(sws)->intel;
unsigned flags = DRM_BO_FLAG_MEM_TT;
unsigned mask = DRM_BO_MASK_MEM;
if (access_flags & I915_BUFFER_ACCESS_WRITE) {
flags |= DRM_BO_FLAG_WRITE;
mask |= DRM_BO_FLAG_WRITE;
}
if (access_flags & I915_BUFFER_ACCESS_READ) {
flags |= DRM_BO_FLAG_READ;
mask |= DRM_BO_FLAG_READ;
}
intel_batchbuffer_emit_reloc( intel->batch,
dri_bo( buf ),
flags, mask,
delta );
}
static void intel_i915_batch_wait_idle( struct i915_winsys *sws )
{
struct intel_context *intel = intel_i915_winsys(sws)->intel;
if (intel->batch->last_fence) {
driFenceFinish(intel->batch->last_fence,
DRM_FENCE_TYPE_EXE | DRM_I915_FENCE_TYPE_RW, GL_FALSE);
driFenceUnReference(intel->batch->last_fence);
intel->batch->last_fence = NULL;
}
}
static void intel_i915_batch_flush( struct i915_winsys *sws )
{
struct intel_context *intel = intel_i915_winsys(sws)->intel;
_mesa_printf("%s: start\n");
intel_batchbuffer_flush( intel->batch );
intel_i915_batch_wait_idle( sws );
_mesa_printf("%s: done\n");
}
struct pipe_context *
intel_create_i915simple( struct intel_context *intel )
{
struct intel_i915_winsys *iws = CALLOC_STRUCT( intel_i915_winsys );
/* Fill in this struct with callbacks that i915simple will need to
* communicate with the window system, buffer manager, etc.
*/
iws->winsys.buffer_create = intel_i915_buffer_create;
iws->winsys.buffer_map = intel_i915_buffer_map;
iws->winsys.buffer_unmap = intel_i915_buffer_unmap;
iws->winsys.buffer_reference = intel_i915_buffer_reference;
iws->winsys.buffer_unreference = intel_i915_buffer_unreference;
iws->winsys.buffer_data = intel_i915_buffer_data;
iws->winsys.buffer_subdata = intel_i915_buffer_subdata;
iws->winsys.buffer_get_subdata = intel_i915_buffer_get_subdata;
iws->winsys.batch_start = intel_i915_batch_start;
iws->winsys.batch_dword = intel_i915_batch_dword;
iws->winsys.batch_reloc = intel_i915_batch_reloc;
iws->winsys.batch_flush = intel_i915_batch_flush;
iws->winsys.batch_wait_idle = intel_i915_batch_wait_idle;
iws->intel = intel;
/* Create the i915simple context:
*/
return i915_create( &iws->winsys );
}
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