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/**************************************************************************
*
* Copyright 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.
*
**************************************************************************/
#include "util/u_memory.h"
#include "lp_state.h"
#include "lp_rast.h"
#include "lp_rast_priv.h"
#include "lp_tile_soa.h"
#include "lp_bld_debug.h"
#define RAST_DEBUG debug_printf
struct lp_rasterizer *lp_rast_create( struct pipe_screen *screen )
{
struct lp_rasterizer *rast;
rast = CALLOC_STRUCT(lp_rasterizer);
if(!rast)
return NULL;
rast->screen = screen;
rast->tile.color = align_malloc( TILE_SIZE*TILE_SIZE*4, 16 );
rast->tile.depth = align_malloc( TILE_SIZE*TILE_SIZE*4, 16 );
return rast;
}
boolean lp_rast_begin( struct lp_rasterizer *rast,
struct pipe_surface *cbuf,
struct pipe_surface *zsbuf,
boolean write_color,
boolean write_zstencil,
unsigned width,
unsigned height )
{
struct pipe_screen *screen = rast->screen;
RAST_DEBUG("%s %dx%d\n", __FUNCTION__, width, height);
pipe_surface_reference(&rast->state.cbuf, cbuf);
pipe_surface_reference(&rast->state.zsbuf, zsbuf);
rast->width = width;
rast->height = height;
rast->state.write_zstencil = write_zstencil;
rast->state.write_color = write_color;
rast->check_for_clipped_tiles = (width % TILE_SIZE != 0 ||
height % TILE_SIZE != 0);
if (cbuf) {
rast->cbuf_transfer = screen->get_tex_transfer(rast->screen,
cbuf->texture,
cbuf->face,
cbuf->level,
cbuf->zslice,
PIPE_TRANSFER_READ_WRITE,
0, 0, width, height);
if (!rast->cbuf_transfer)
return FALSE;
rast->cbuf_map = screen->transfer_map(rast->screen,
rast->cbuf_transfer);
if (!rast->cbuf_map)
return FALSE;
}
return TRUE;
}
void lp_rast_end( struct lp_rasterizer *rast )
{
struct pipe_screen *screen = rast->screen;
if (rast->cbuf_map)
screen->transfer_unmap(screen, rast->cbuf_transfer);
if (rast->zsbuf_map)
screen->transfer_unmap(screen, rast->zsbuf_transfer);
if (rast->cbuf_transfer)
screen->tex_transfer_destroy(rast->cbuf_transfer);
if (rast->zsbuf_transfer)
screen->tex_transfer_destroy(rast->cbuf_transfer);
rast->cbuf_transfer = NULL;
rast->zsbuf_transfer = NULL;
rast->cbuf_map = NULL;
rast->zsbuf_map = NULL;
}
/* Begining of each tile:
*/
void lp_rast_start_tile( struct lp_rasterizer *rast,
unsigned x,
unsigned y )
{
RAST_DEBUG("%s %d,%d\n", __FUNCTION__, x, y);
rast->x = x;
rast->y = y;
}
void lp_rast_clear_color( struct lp_rasterizer *rast,
const union lp_rast_cmd_arg arg )
{
const uint8_t *clear_color = arg.clear_color;
RAST_DEBUG("%s %x,%x,%x,%x\n", __FUNCTION__,
clear_color[0],
clear_color[1],
clear_color[2],
clear_color[3]);
if (clear_color[0] == clear_color[1] &&
clear_color[1] == clear_color[2] &&
clear_color[2] == clear_color[3]) {
memset(rast->tile.color, clear_color[0], TILE_SIZE * TILE_SIZE * 4);
}
else {
unsigned x, y, chan;
for (y = 0; y < TILE_SIZE; y++)
for (x = 0; x < TILE_SIZE; x++)
for (chan = 0; chan < 4; ++chan)
TILE_PIXEL(rast->tile.color, x, y, chan) = clear_color[chan];
}
}
void lp_rast_clear_zstencil( struct lp_rasterizer *rast,
const union lp_rast_cmd_arg arg)
{
unsigned i, j;
RAST_DEBUG("%s\n", __FUNCTION__);
for (i = 0; i < TILE_SIZE; i++)
for (j = 0; j < TILE_SIZE; j++)
rast->tile.depth[i*TILE_SIZE + j] = arg.clear_zstencil;
}
void lp_rast_load_color( struct lp_rasterizer *rast,
const union lp_rast_cmd_arg arg)
{
RAST_DEBUG("%s\n", __FUNCTION__);
/* call u_tile func to load colors from surface */
}
void lp_rast_load_zstencil( struct lp_rasterizer *rast,
const union lp_rast_cmd_arg arg )
{
RAST_DEBUG("%s\n", __FUNCTION__);
/* call u_tile func to load depth (and stencil?) from surface */
}
/* Within a tile:
*/
void lp_rast_shade_tile( struct lp_rasterizer *rast,
const union lp_rast_cmd_arg arg )
{
const struct lp_rast_shader_inputs *inputs = arg.shade_tile;
const unsigned mask = ~0;
unsigned x, y;
RAST_DEBUG("%s\n", __FUNCTION__);
/* Use the existing preference for 4x4 (four quads) shading:
*/
for (y = 0; y < TILE_SIZE; y += 4)
for (x = 0; x < TILE_SIZE; x += 4)
lp_rast_shade_quads( rast, inputs, rast->x + x, rast->y + y, mask);
}
void lp_rast_shade_quads( struct lp_rasterizer *rast,
const struct lp_rast_shader_inputs *inputs,
unsigned x, unsigned y,
unsigned mask)
{
#if 1
const struct lp_rast_state *state = inputs->state;
struct lp_rast_tile *tile = &rast->tile;
void *color;
void *depth;
uint32_t ALIGN16_ATTRIB masks[2][2][2][2];
unsigned ix, iy;
/* Sanity checks */
assert(x % TILE_VECTOR_WIDTH == 0);
assert(y % TILE_VECTOR_HEIGHT == 0);
/* mask: the rasterizer wants to treat pixels in 4x4 blocks, but
* the pixel shader wants to swizzle them into 4 2x2 quads.
*
* Additionally, the pixel shader wants masks as full dword ~0,
* while the rasterizer wants to pack per-pixel bits tightly.
*/
#if 0
unsigned qx, qy;
for (qy = 0; qy < 2; ++qy)
for (qx = 0; qx < 2; ++qx)
for (iy = 0; iy < 2; ++iy)
for (ix = 0; ix < 2; ++ix)
masks[qy][qx][iy][ix] = mask & (1 << (qy*8+iy*4+qx*2+ix)) ? ~0 : 0;
#else
masks[0][0][0][0] = mask & (1 << (0*8+0*4+0*2+0)) ? ~0 : 0;
masks[0][0][0][1] = mask & (1 << (0*8+0*4+0*2+1)) ? ~0 : 0;
masks[0][0][1][0] = mask & (1 << (0*8+1*4+0*2+0)) ? ~0 : 0;
masks[0][0][1][1] = mask & (1 << (0*8+1*4+0*2+1)) ? ~0 : 0;
masks[0][1][0][0] = mask & (1 << (0*8+0*4+1*2+0)) ? ~0 : 0;
masks[0][1][0][1] = mask & (1 << (0*8+0*4+1*2+1)) ? ~0 : 0;
masks[0][1][1][0] = mask & (1 << (0*8+1*4+1*2+0)) ? ~0 : 0;
masks[0][1][1][1] = mask & (1 << (0*8+1*4+1*2+1)) ? ~0 : 0;
masks[1][0][0][0] = mask & (1 << (1*8+0*4+0*2+0)) ? ~0 : 0;
masks[1][0][0][1] = mask & (1 << (1*8+0*4+0*2+1)) ? ~0 : 0;
masks[1][0][1][0] = mask & (1 << (1*8+1*4+0*2+0)) ? ~0 : 0;
masks[1][0][1][1] = mask & (1 << (1*8+1*4+0*2+1)) ? ~0 : 0;
masks[1][1][0][0] = mask & (1 << (1*8+0*4+1*2+0)) ? ~0 : 0;
masks[1][1][0][1] = mask & (1 << (1*8+0*4+1*2+1)) ? ~0 : 0;
masks[1][1][1][0] = mask & (1 << (1*8+1*4+1*2+0)) ? ~0 : 0;
masks[1][1][1][1] = mask & (1 << (1*8+1*4+1*2+1)) ? ~0 : 0;
#endif
ix = x % TILE_SIZE;
iy = y % TILE_SIZE;
/* color buffer */
color = &TILE_PIXEL(tile->color, ix, iy, 0);
/* depth buffer */
assert((x % 2) == 0);
assert((y % 2) == 0);
depth = tile->depth + (iy/4)*(16*16) + (ix/4)*16;
/* XXX: This will most likely fail on 32bit x86 without -mstackrealign */
assert(lp_check_alignment(masks, 16));
assert(lp_check_alignment(depth, 16));
assert(lp_check_alignment(color, 16));
assert(lp_check_alignment(state->jit_context.blend_color, 16));
/* run shader */
state->jit_function( &state->jit_context,
x, y,
inputs->a0,
inputs->dadx,
inputs->dady,
&masks[0][0][0][0],
color,
depth);
#else
struct lp_rast_tile *tile = &rast->tile;
unsigned chan_index;
unsigned q, ix, iy;
x %= TILE_SIZE;
y %= TILE_SIZE;
/* mask */
for (q = 0; q < 4; ++q)
for(iy = 0; iy < 2; ++iy)
for(ix = 0; ix < 2; ++ix)
if(masks[q] & (1 << (iy*2 + ix)))
for (chan_index = 0; chan_index < NUM_CHANNELS; ++chan_index)
TILE_PIXEL(tile->color, x + q*2 + ix, y + iy, chan_index) = 0xff;
#endif
}
/* End of tile:
*/
static void lp_rast_store_color( struct lp_rasterizer *rast )
{
const unsigned x = rast->x;
const unsigned y = rast->y;
unsigned w = TILE_SIZE;
unsigned h = TILE_SIZE;
if (x + w > rast->width)
w -= x + w - rast->width;
if (y + h > rast->height)
h -= y + h - rast->height;
RAST_DEBUG("%s %d,%d %dx%d\n", __FUNCTION__, x, y, w, h);
lp_tile_write_4ub(rast->cbuf_transfer->format,
rast->tile.color,
rast->cbuf_map,
rast->cbuf_transfer->stride,
x, y,
w, h);
}
static void lp_rast_store_zstencil( struct lp_rasterizer *rast )
{
RAST_DEBUG("%s\n", __FUNCTION__);
/* FIXME: call u_tile func to store depth/stencil to surface */
}
void lp_rast_end_tile( struct lp_rasterizer *rast )
{
RAST_DEBUG("%s\n", __FUNCTION__);
if (rast->state.write_color)
lp_rast_store_color(rast);
if (rast->state.write_zstencil)
lp_rast_store_zstencil(rast);
}
/* Shutdown:
*/
void lp_rast_destroy( struct lp_rasterizer *rast )
{
pipe_surface_reference(&rast->state.cbuf, NULL);
pipe_surface_reference(&rast->state.zsbuf, NULL);
align_free(rast->tile.depth);
align_free(rast->tile.color);
FREE(rast);
}
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