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/**************************************************************************
*
* Copyright 2007-2009 VMware, Inc.
* 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 VMWARE 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 LP_SETUP_CONTEXT_H
#define LP_SETUP_CONTEXT_H
#define CMD_BLOCK_MAX 128
#define DATA_BLOCK_SIZE (16 * 1024 - sizeof(unsigned) - sizeof(void *))
/* switch to a non-pointer value for this:
*/
typedef void (*lp_rast_cmd)( struct lp_rast *, const union lp_rast_cmd_arg * );
struct cmd_block {
union lp_rast_arg *arg[CMD_BLOCK_MAX];
lp_rast_cmd cmd[CMD_BLOCK_MAX];
unsigned count;
struct cmd_block *next;
};
struct data_block {
ubyte data[DATA_BLOCK_SZ];
unsigned used;
struct data_block *next;
};
struct cmd_block_list {
struct cmd_block *head;
struct cmd_block *tail;
};
struct data_block_list {
struct data_block *head;
struct data_block *tail;
};
/* We're limited to 2K by 2K for 32bit fixed point rasterization.
* Will need a 64-bit version for larger framebuffers.
*/
#define MAXHEIGHT 2048
#define MAXWIDTH 2048
struct setup_context {
/* When there are multiple threads, will want to double-buffer the
* bin arrays:
*/
struct cmd_block_list bin[MAXHEIGHT / TILESIZE][MAXWIDTH / TILESIZE];
struct data_block_list data;
unsigned tiles_x;
unsigned tiles_y;
struct {
struct pipe_surface *color;
struct pipe_surface *zstencil;
} fb;
struct {
unsigned flags;
float clear_color[4];
double clear_depth;
unsigned clear_stencil;
} clear;
enum {
SETUP_FLUSHED,
SETUP_CLEARED,
SETUP_ACTIVE
} state;
struct {
enum lp_interp inputs[PIPE_MAX_ATTRIBS];
unsigned nr_inputs;
} fs;
void (*point)( struct setup_context *,
const float (*v0)[4]);
void (*line)( struct setup_context *,
const float (*v0)[4],
const float (*v1)[4]);
void (*triangle)( struct setup_context *,
const float (*v0)[4],
const float (*v1)[4],
const float (*v1)[4]);
};
static INLINE void *get_data( struct data_block_list *list,
unsigned size)
{
if (list->tail->used + size > DATA_BLOCK_SIZE) {
lp_setup_new_data_block( list );
}
{
struct data_block *tail = list->tail;
char *data = tail->data + tail->used;
tail->used += size;
return data;
}
}
/* Add a command to a given bin.
*/
static INLINE void bin_cmd( struct cmd_block_list *list,
bin_cmd cmd,
const union lp_rast_cmd_arg *arg )
{
if (list->tail.count == CMD_BLOCK_MAX) {
lp_setup_new_cmd_block( list )
}
{
struct cmd_block *tail = list->tail;
unsigned i = tail->count;
tail->cmd[i] = cmd;
tail->arg[i] = arg;
tail->count++;
}
}
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