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/**************************************************************************
*
* 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 "util/u_memory.h"
#include "util/u_math.h"
#include "pipe/p_context.h"
#include "xm_winsys.h"
#include "i965/brw_winsys.h"
#include "i965/brw_screen.h"
#include "i965/brw_reg.h"
#define MAX_VRAM (128*1024*1024)
struct xlib_brw_buffer
{
struct brw_winsys_buffer base;
unsigned offset;
unsigned type;
char *virtual;
unsigned cheesy_refcount;
int map_count;
};
/**
* Subclass of brw_winsys_screen for Xlib winsys
*/
struct xlib_brw_winsys
{
struct brw_winsys_screen base;
unsigned offset;
};
static struct xlib_brw_winsys *
xlib_brw_winsys( struct brw_winsys_screen *screen )
{
return (struct xlib_brw_winsys *)screen;
}
static struct xlib_brw_buffer *
xlib_brw_buffer( struct brw_winsys_buffer *buffer )
{
return (struct xlib_brw_buffer *)buffer;
}
const char *names[BRW_BUFFER_TYPE_MAX] = {
"texture",
"scanout",
"vertex",
"curbe",
"query",
"shader_constants",
"wm_scratch",
"batch",
"state_cache",
};
const char *usages[BRW_USAGE_MAX] = {
"state",
"query_result",
"render_target",
"depth_buffer",
"sampler",
"vertex",
"scratch"
};
static struct brw_winsys_buffer *
xlib_brw_bo_alloc( struct brw_winsys_screen *sws,
enum brw_buffer_type type,
unsigned size,
unsigned alignment )
{
struct xlib_brw_winsys *xbw = xlib_brw_winsys(sws);
struct xlib_brw_buffer *buf;
debug_printf("%s type %d sz %d align %d\n",
__FUNCTION__, type, size, alignment );
buf = CALLOC_STRUCT(xlib_brw_buffer);
if (!buf)
return NULL;
buf->offset = align(xbw->offset, alignment);
buf->type = type;
buf->virtual = MALLOC(size);
buf->base.offset = &buf->offset; /* hmm, cheesy */
buf->base.size = size;
xbw->offset = align(xbw->offset, alignment) + size;
if (xbw->offset > MAX_VRAM)
goto err;
return &buf->base;
err:
assert(0);
FREE(buf);
return NULL;
}
static void
xlib_brw_bo_reference( struct brw_winsys_buffer *buffer )
{
struct xlib_brw_buffer *buf = xlib_brw_buffer(buffer);
buf->cheesy_refcount++;
}
static void
xlib_brw_bo_unreference( struct brw_winsys_buffer *buffer )
{
struct xlib_brw_buffer *buf = xlib_brw_buffer(buffer);
if (--buf->cheesy_refcount == 0) {
FREE(buffer);
}
}
static int
xlib_brw_bo_emit_reloc( struct brw_winsys_buffer *buffer,
enum brw_buffer_usage usage,
unsigned delta,
unsigned offset,
struct brw_winsys_buffer *buffer2)
{
struct xlib_brw_buffer *buf = xlib_brw_buffer(buffer);
struct xlib_brw_buffer *buf2 = xlib_brw_buffer(buffer2);
debug_printf("%s buf %p offset %x val %x + %x buf2 %p/%s/%s\n",
__FUNCTION__, (void *)buffer, offset,
buf2->offset, delta,
(void *)buffer2, names[buf2->type], usages[usage]);
*(uint32_t *)(buf->virtual + offset) = buf2->offset + delta;
return 0;
}
static int
xlib_brw_bo_exec( struct brw_winsys_buffer *buffer,
unsigned bytes_used )
{
debug_printf("execute buffer %p, bytes %d\n", (void *)buffer, bytes_used);
return 0;
}
static int
xlib_brw_bo_subdata(struct brw_winsys_buffer *buffer,
size_t offset,
size_t size,
const void *data)
{
struct xlib_brw_buffer *buf = xlib_brw_buffer(buffer);
debug_printf("%s buf %p off %d sz %d data %p\n",
__FUNCTION__,
(void *)buffer, offset, size, data);
memcpy(buf->virtual + offset, data, size);
return 0;
}
static boolean
xlib_brw_bo_is_busy(struct brw_winsys_buffer *buffer)
{
debug_printf("%s %p\n", __FUNCTION__, (void *)buffer);
return TRUE;
}
static boolean
xlib_brw_bo_references(struct brw_winsys_buffer *a,
struct brw_winsys_buffer *b)
{
debug_printf("%s %p %p\n", __FUNCTION__, (void *)a, (void *)b);
return TRUE;
}
static boolean
xlib_brw_check_aperture_space( struct brw_winsys_screen *iws,
struct brw_winsys_buffer **buffers,
unsigned count )
{
unsigned tot_size = 0;
unsigned i;
for (i = 0; i < count; i++)
tot_size += buffers[i]->size;
debug_printf("%s %d bufs, tot_size: %d kb\n",
__FUNCTION__, count,
(tot_size + 1023) / 1024);
return TRUE;
}
static void *
xlib_brw_bo_map(struct brw_winsys_buffer *buffer,
boolean write)
{
struct xlib_brw_buffer *buf = xlib_brw_buffer(buffer);
debug_printf("%s %p %s\n", __FUNCTION__, (void *)buffer,
write ? "read/write" : "read");
buf->map_count++;
return buf->virtual;
}
static void
xlib_brw_bo_unmap(struct brw_winsys_buffer *buffer)
{
struct xlib_brw_buffer *buf = xlib_brw_buffer(buffer);
debug_printf("%s %p\n", __FUNCTION__, (void *)buffer);
--buf->map_count;
assert(buf->map_count >= 0);
}
static void
xlib_brw_winsys_destroy( struct brw_winsys_screen *screen )
{
/* XXX: free all buffers */
FREE(screen);
}
static struct brw_winsys_screen *
xlib_create_brw_winsys_screen( void )
{
struct xlib_brw_winsys *ws;
ws = CALLOC_STRUCT(xlib_brw_winsys);
if (!ws)
return NULL;
ws->base.destroy = xlib_brw_winsys_destroy;
ws->base.bo_alloc = xlib_brw_bo_alloc;
ws->base.bo_reference = xlib_brw_bo_reference;
ws->base.bo_unreference = xlib_brw_bo_unreference;
ws->base.bo_emit_reloc = xlib_brw_bo_emit_reloc;
ws->base.bo_exec = xlib_brw_bo_exec;
ws->base.bo_subdata = xlib_brw_bo_subdata;
ws->base.bo_is_busy = xlib_brw_bo_is_busy;
ws->base.bo_references = xlib_brw_bo_references;
ws->base.check_aperture_space = xlib_brw_check_aperture_space;
ws->base.bo_map = xlib_brw_bo_map;
ws->base.bo_unmap = xlib_brw_bo_unmap;
return &ws->base;
}
/***********************************************************************
* Implementation of Xlib co-state-tracker's winsys interface
*/
static struct pipe_screen *
xlib_create_i965_screen( void )
{
struct brw_winsys_screen *winsys;
struct pipe_screen *screen;
winsys = xlib_create_brw_winsys_screen();
if (winsys == NULL)
return NULL;
screen = brw_create_screen(winsys,
PCI_CHIP_GM45_GM);
if (screen == NULL)
goto fail;
return screen;
fail:
if (winsys)
winsys->destroy( winsys );
return NULL;
}
static struct pipe_context *
xlib_create_i965_context( struct pipe_screen *screen,
void *context_private )
{
struct pipe_context *pipe;
pipe = brw_create_context(screen);
if (pipe == NULL)
goto fail;
pipe->priv = context_private;
return pipe;
fail:
/* Free stuff here */
return NULL;
}
static void
xlib_i965_display_surface(struct xmesa_buffer *xm_buffer,
struct pipe_surface *surf)
{
/* struct brw_texture *texture = brw_texture(surf->texture); */
debug_printf("%s tex %p, sz %dx%d\n", __FUNCTION__,
(void *)surf->texture,
surf->texture->width[0],
surf->texture->height[0]);
}
struct xm_driver xlib_i965_driver =
{
.create_pipe_screen = xlib_create_i965_screen,
.create_pipe_context = xlib_create_i965_context,
.display_surface = xlib_i965_display_surface
};
/***********************************************************************
*
* Butt-ugly hack to convince the linker not to throw away public GL
* symbols (they are all referenced from getprocaddress, I guess).
*/
extern void (*linker_foo(const unsigned char *procName))();
extern void (*glXGetProcAddress(const unsigned char *procName))();
extern void (*linker_foo(const unsigned char *procName))()
{
return glXGetProcAddress(procName);
}
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