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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.
*
**************************************************************************/
/**
* Types and tokens which are common to the SPU and PPU code.
*/
#ifndef CELL_COMMON_H
#define CELL_COMMON_H
#include "pipe/p_compiler.h"
#include "pipe/p_util.h"
#include "pipe/p_format.h"
/** The standard assert macro doesn't seem to work reliably */
#define ASSERT(x) \
if (!(x)) { \
ubyte *p = NULL; \
fprintf(stderr, "%s:%d: %s(): assertion %s failed.\n", \
__FILE__, __LINE__, __FUNCTION__, #x); \
*p = 0; \
exit(1); \
}
/** for sanity checking */
#define ASSERT_ALIGN16(ptr) \
assert((((unsigned long) (ptr)) & 0xf) == 0);
/** round up value to next multiple of 4 */
#define ROUNDUP4(k) (((k) + 0x3) & ~0x3)
/** round up value to next multiple of 16 */
#define ROUNDUP16(k) (((k) + 0xf) & ~0xf)
#define TILE_SIZE 32
/**
* The low byte of a mailbox word contains the command opcode.
* Remaining higher bytes are command specific.
*/
#define CELL_CMD_OPCODE_MASK 0xff
#define CELL_CMD_EXIT 1
#define CELL_CMD_CLEAR_SURFACE 2
#define CELL_CMD_FINISH 3
#define CELL_CMD_RENDER 4
#define CELL_CMD_BATCH 5
#define CELL_CMD_RELEASE_VERTS 6
#define CELL_CMD_STATE_FRAMEBUFFER 10
#define CELL_CMD_STATE_DEPTH_STENCIL 11
#define CELL_CMD_STATE_SAMPLER 12
#define CELL_CMD_STATE_VERTEX_INFO 13
#define CELL_NUM_BUFFERS 4
#define CELL_BUFFER_SIZE (4*1024) /**< 16KB would be the max */
#define CELL_BUFFER_STATUS_FREE 10
#define CELL_BUFFER_STATUS_USED 20
/**
* Tell SPUs about the framebuffer size, location
*/
struct cell_command_framebuffer
{
uint opcode;
int width, height;
void *color_start, *depth_start;
enum pipe_format color_format, depth_format;
} ALIGN16_ATTRIB;
/**
* Clear framebuffer to the given value/color.
*/
struct cell_command_clear_surface
{
uint opcode;
uint surface; /**< Temporary: 0=color, 1=Z */
uint value;
} ALIGN16_ATTRIB;
struct cell_command_render
{
uint opcode; /**< CELL_CMD_RENDER */
uint prim_type; /**< PIPE_PRIM_x */
uint num_verts;
uint vertex_size; /**< bytes per vertex */
uint dummy; /* XXX this dummy field works around a compiler bug */
uint num_indexes;
uint vertex_buf; /**< which cell->buffer[] contains the vertex data */
float xmin, dummy2, ymin, xmax, ymax; /* XXX another dummy field */
boolean inline_verts;
} ALIGN16_ATTRIB;
struct cell_command_release_verts
{
int opcode; /**< CELL_CMD_RELEASE_VERTS */
uint vertex_buf; /**< in [0, CELL_NUM_BUFFERS-1] */
};
/** XXX unions don't seem to work */
struct cell_command
{
struct cell_command_framebuffer fb;
struct cell_command_clear_surface clear;
struct cell_command_render render;
} ALIGN16_ATTRIB;
/** This is the object passed to spe_create_thread() */
struct cell_init_info
{
unsigned id;
unsigned num_spus;
struct cell_command *cmd;
/** Buffers for command batches, vertex/index data */
ubyte *buffers[CELL_NUM_BUFFERS];
uint *buffer_status; /**< points at cell_context->buffer_status */
} ALIGN16_ATTRIB;
#endif /* CELL_COMMON_H */
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