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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* 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 TUNGSTEN GRAPHICS 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.
*
**************************************************************************/
#ifndef I915_BATCH_H
#define I915_BATCH_H
#include "i915_winsys.h"
struct i915_batchbuffer
{
struct pipe_buffer *buffer;
struct i915_winsys *winsys;
unsigned char *map;
unsigned char *ptr;
size_t size;
size_t actual_size;
size_t relocs;
size_t max_relocs;
};
static INLINE boolean
i915_batchbuffer_check( struct i915_batchbuffer *batch,
size_t dwords,
size_t relocs )
{
return dwords * 4 <= batch->size - (batch->ptr - batch->map) &&
relocs <= (batch->max_relocs - batch->relocs);
}
static INLINE size_t
i915_batchbuffer_space( struct i915_batchbuffer *batch )
{
return batch->size - (batch->ptr - batch->map);
}
static INLINE void
i915_batchbuffer_dword( struct i915_batchbuffer *batch,
unsigned dword )
{
if (i915_batchbuffer_space(batch) < 4)
return;
*(unsigned *)batch->ptr = dword;
batch->ptr += 4;
}
static INLINE void
i915_batchbuffer_write( struct i915_batchbuffer *batch,
void *data,
size_t size )
{
if (i915_batchbuffer_space(batch) < size)
return;
memcpy(data, batch->ptr, size);
batch->ptr += size;
}
static INLINE void
i915_batchbuffer_reloc( struct i915_batchbuffer *batch,
struct pipe_buffer *buffer,
size_t flags,
size_t offset )
{
batch->winsys->batch_reloc( batch->winsys, buffer, flags, offset );
}
static INLINE void
i915_batchbuffer_flush( struct i915_batchbuffer *batch,
struct pipe_fence_handle **fence )
{
batch->winsys->batch_flush( batch->winsys, fence );
}
#define BEGIN_BATCH( dwords, relocs ) \
(i915_batchbuffer_check( i915->batch, dwords, relocs ))
#define OUT_BATCH( dword ) \
i915_batchbuffer_dword( i915->batch, dword )
#define OUT_RELOC( buf, flags, delta ) \
i915_batchbuffer_reloc( i915->batch, buf, flags, delta )
#define FLUSH_BATCH(fence) do { \
i915->winsys->batch_flush( i915->winsys, fence ); \
i915->hardware_dirty = ~0; \
} while (0)
#endif
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