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softpipe: split texture and surface tile caches 

These do similar jobs but with largely disjoint code.  Will want
to evolve them separately going forward.
This commit is contained in:
Keith Whitwell 2009-07-29 07:40:50 +01:00
parent 99ec78d946
commit 80c78472ad
13 changed files with 460 additions and 224 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/gallium/drivers/softpipe/Makefile
View File

@ -30,6 +30,7 @@ C_SOURCES = \
sp_state_vertex.c \
sp_texture.c \
sp_tex_sample.c \
sp_tex_tile_cache.c \
sp_tile_cache.c \
sp_surface.c

1
src/gallium/drivers/softpipe/SConscript
View File

@ -37,6 +37,7 @@ softpipe = env.ConvenienceLibrary(
'sp_state_vertex.c',
'sp_surface.c',
'sp_tex_sample.c',
'sp_tex_tile_cache.c',
'sp_texture.c',
'sp_tile_cache.c',
])

4
src/gallium/drivers/softpipe/sp_context.c
View File

@ -97,7 +97,7 @@ static void softpipe_destroy( struct pipe_context *pipe )
sp_destroy_tile_cache(softpipe->zsbuf_cache);
for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
sp_destroy_tile_cache(softpipe->tex_cache[i]);
sp_destroy_tex_tile_cache(softpipe->tex_cache[i]);
for (i = 0; i < Elements(softpipe->constants); i++) {
if (softpipe->constants[i].buffer) {
@ -220,7 +220,7 @@ softpipe_create( struct pipe_screen *screen )
softpipe->zsbuf_cache = sp_create_tile_cache( screen );
for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
softpipe->tex_cache[i] = sp_create_tile_cache( screen );
softpipe->tex_cache[i] = sp_create_tex_tile_cache( screen );
/* setup quad rendering stages */

3
src/gallium/drivers/softpipe/sp_context.h
View File

@ -43,6 +43,7 @@ struct softpipe_vbuf_render;
struct draw_context;
struct draw_stage;
struct softpipe_tile_cache;
struct softpipe_tex_tile_cache;
struct sp_fragment_shader;
struct sp_vertex_shader;
@ -141,7 +142,7 @@ struct softpipe_context {
struct softpipe_tile_cache *zsbuf_cache;
unsigned tex_timestamp;
struct softpipe_tile_cache *tex_cache[PIPE_MAX_SAMPLERS];
struct softpipe_tex_tile_cache *tex_cache[PIPE_MAX_SAMPLERS];
unsigned use_sse : 1;
unsigned dump_fs : 1;

3
src/gallium/drivers/softpipe/sp_flush.c
View File

@ -37,6 +37,7 @@
#include "sp_surface.h"
#include "sp_state.h"
#include "sp_tile_cache.h"
#include "sp_tex_tile_cache.h"
#include "sp_winsys.h"
@ -52,7 +53,7 @@ softpipe_flush( struct pipe_context *pipe,
if (flags & PIPE_FLUSH_TEXTURE_CACHE) {
for (i = 0; i < softpipe->num_textures; i++) {
sp_flush_tile_cache(softpipe->tex_cache[i]);
sp_flush_tex_tile_cache(softpipe->tex_cache[i]);
}
}

2
src/gallium/drivers/softpipe/sp_state_derived.c
View File

@ -212,7 +212,7 @@ update_tgsi_samplers( struct softpipe_context *softpipe )
}
for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
sp_tile_cache_validate_texture( softpipe->tex_cache[i] );
sp_tex_tile_cache_validate_texture( softpipe->tex_cache[i] );
}
}

4
src/gallium/drivers/softpipe/sp_state_sampler.c
View File

@ -37,7 +37,7 @@
#include "sp_context.h"
#include "sp_state.h"
#include "sp_texture.h"
#include "sp_tile_cache.h"
#include "sp_tex_tile_cache.h"
#include "draw/draw_context.h"
@ -97,7 +97,7 @@ softpipe_set_sampler_textures(struct pipe_context *pipe,
struct pipe_texture *tex = i < num ? texture[i] : NULL;
pipe_texture_reference(&softpipe->texture[i], tex);
sp_tile_cache_set_texture(softpipe->tex_cache[i], tex);
sp_tex_tile_cache_set_texture(softpipe->tex_cache[i], tex);
}
softpipe->num_textures = num;

16
src/gallium/drivers/softpipe/sp_tex_sample.c
View File

@ -38,7 +38,7 @@
#include "sp_surface.h"
#include "sp_texture.h"
#include "sp_tex_sample.h"
#include "sp_tile_cache.h"
#include "sp_tex_tile_cache.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
#include "util/u_math.h"
@ -659,7 +659,7 @@ choose_mipmap_levels(const struct pipe_texture *texture,
* \param rgba the quad to put the texel/color into
* \param j which element of the rgba quad to write to
*
* XXX maybe move this into sp_tile_cache.c and merge with the
* XXX maybe move this into sp_tex_tile_cache.c and merge with the
* sp_get_cached_tile_tex() function. Also, get 4 texels instead of 1...
*/
static void
@ -669,9 +669,9 @@ get_texel_quad_2d(const struct tgsi_sampler *tgsi_sampler,
{
const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
const struct softpipe_cached_tile *tile
const struct softpipe_tex_cached_tile *tile
= sp_get_cached_tile_tex(samp->cache,
tile_address(x, y, 0, face, level));
tex_tile_address(x, y, 0, face, level));
y %= TILE_SIZE;
x %= TILE_SIZE;
@ -688,9 +688,9 @@ get_texel_2d_ptr(const struct tgsi_sampler *tgsi_sampler,
{
const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
const struct softpipe_cached_tile *tile
const struct softpipe_tex_cached_tile *tile
= sp_get_cached_tile_tex(samp->cache,
tile_address(x, y, 0, face, level));
tex_tile_address(x, y, 0, face, level));
y %= TILE_SIZE;
x %= TILE_SIZE;
@ -736,10 +736,10 @@ get_texel(const struct tgsi_sampler *tgsi_sampler,
else {
const unsigned tx = x % TILE_SIZE;
const unsigned ty = y % TILE_SIZE;
const struct softpipe_cached_tile *tile;
const struct softpipe_tex_cached_tile *tile;
tile = sp_get_cached_tile_tex(samp->cache,
tile_address(x, y, z, face, level));
tex_tile_address(x, y, z, face, level));
rgba[0][j] = tile->data.color[ty][tx][0];
rgba[1][j] = tile->data.color[ty][tx][1];

2
src/gallium/drivers/softpipe/sp_tex_sample.h
View File

@ -48,7 +48,7 @@ struct sp_shader_sampler
const struct pipe_texture *texture;
const struct pipe_sampler_state *sampler;
struct softpipe_tile_cache *cache;
struct softpipe_tex_tile_cache *cache;
};

274
src/gallium/drivers/softpipe/sp_tex_tile_cache.c Normal file
View File

@ -0,0 +1,274 @@
/**************************************************************************
*
* 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.
*
**************************************************************************/
/**
* Texture tile caching.
*
* Author:
* Brian Paul
*/
#include "pipe/p_inlines.h"
#include "util/u_memory.h"
#include "util/u_tile.h"
#include "sp_context.h"
#include "sp_surface.h"
#include "sp_texture.h"
#include "sp_tex_tile_cache.h"
struct softpipe_tex_tile_cache *
sp_create_tex_tile_cache( struct pipe_screen *screen )
{
struct softpipe_tex_tile_cache *tc;
uint pos;
tc = CALLOC_STRUCT( softpipe_tex_tile_cache );
if (tc) {
tc->screen = screen;
for (pos = 0; pos < NUM_ENTRIES; pos++) {
tc->entries[pos].addr.bits.invalid = 1;
}
tc->last_tile = &tc->entries[0]; /* any tile */
}
return tc;
}
void
sp_destroy_tex_tile_cache(struct softpipe_tex_tile_cache *tc)
{
struct pipe_screen *screen;
uint pos;
for (pos = 0; pos < NUM_ENTRIES; pos++) {
/*assert(tc->entries[pos].x < 0);*/
}
if (tc->transfer) {
screen = tc->transfer->texture->screen;
screen->tex_transfer_destroy(tc->transfer);
}
if (tc->tex_trans) {
screen = tc->tex_trans->texture->screen;
screen->tex_transfer_destroy(tc->tex_trans);
}
FREE( tc );
}
void
sp_tex_tile_cache_map_transfers(struct softpipe_tex_tile_cache *tc)
{
if (tc->tex_trans && !tc->tex_trans_map)
tc->tex_trans_map = tc->screen->transfer_map(tc->screen, tc->tex_trans);
}
void
sp_tex_tile_cache_unmap_transfers(struct softpipe_tex_tile_cache *tc)
{
if (tc->tex_trans_map) {
tc->screen->transfer_unmap(tc->screen, tc->tex_trans);
tc->tex_trans_map = NULL;
}
}
void
sp_tex_tile_cache_validate_texture(struct softpipe_tex_tile_cache *tc)
{
if (tc->texture) {
struct softpipe_texture *spt = softpipe_texture(tc->texture);
if (spt->timestamp != tc->timestamp) {
/* texture was modified, invalidate all cached tiles */
uint i;
_debug_printf("INV %d %d\n", tc->timestamp, spt->timestamp);
for (i = 0; i < NUM_ENTRIES; i++) {
tc->entries[i].addr.bits.invalid = 1;
}
tc->timestamp = spt->timestamp;
}
}
}
/**
* Specify the texture to cache.
*/
void
sp_tex_tile_cache_set_texture(struct softpipe_tex_tile_cache *tc,
struct pipe_texture *texture)
{
uint i;
assert(!tc->transfer);
if (tc->texture != texture) {
pipe_texture_reference(&tc->texture, texture);
if (tc->tex_trans) {
struct pipe_screen *screen = tc->tex_trans->texture->screen;
if (tc->tex_trans_map) {
screen->transfer_unmap(screen, tc->tex_trans);
tc->tex_trans_map = NULL;
}
screen->tex_transfer_destroy(tc->tex_trans);
tc->tex_trans = NULL;
}
/* mark as entries as invalid/empty */
/* XXX we should try to avoid this when the teximage hasn't changed */
for (i = 0; i < NUM_ENTRIES; i++) {
tc->entries[i].addr.bits.invalid = 1;
}
tc->tex_face = -1; /* any invalid value here */
}
}
/**
* Flush the tile cache: write all dirty tiles back to the transfer.
* any tiles "flagged" as cleared will be "really" cleared.
*/
void
sp_flush_tex_tile_cache(struct softpipe_tex_tile_cache *tc)
{
int pos;
if (tc->texture) {
/* caching a texture, mark all entries as empty */
for (pos = 0; pos < NUM_ENTRIES; pos++) {
tc->entries[pos].addr.bits.invalid = 1;
}
tc->tex_face = -1;
}
}
/**
* Given the texture face, level, zslice, x and y values, compute
* the cache entry position/index where we'd hope to find the
* cached texture tile.
* This is basically a direct-map cache.
* XXX There's probably lots of ways in which we can improve this.
*/
static INLINE uint
tex_cache_pos( union tex_tile_address addr )
{
uint entry = (addr.bits.x +
addr.bits.y * 9 +
addr.bits.z * 3 +
addr.bits.face +
addr.bits.level * 7);
return entry % NUM_ENTRIES;
}
/**
* Similar to sp_get_cached_tile() but for textures.
* Tiles are read-only and indexed with more params.
*/
const struct softpipe_tex_cached_tile *
sp_find_cached_tile_tex(struct softpipe_tex_tile_cache *tc,
union tex_tile_address addr )
{
struct pipe_screen *screen = tc->screen;
struct softpipe_tex_cached_tile *tile;
tile = tc->entries + tex_cache_pos( addr );
if (addr.value != tile->addr.value) {
/* cache miss. Most misses are because we've invaldiated the
* texture cache previously -- most commonly on binding a new
* texture. Currently we effectively flush the cache on texture
* bind.
*/
#if 0
_debug_printf("miss at %u: x=%d y=%d z=%d face=%d level=%d\n"
" tile %u: x=%d y=%d z=%d face=%d level=%d\n",
pos, x/TILE_SIZE, y/TILE_SIZE, z, face, level,
pos, tile->addr.bits.x, tile->addr.bits.y, tile->z, tile->face, tile->level);
#endif
/* check if we need to get a new transfer */
if (!tc->tex_trans ||
tc->tex_face != addr.bits.face ||
tc->tex_level != addr.bits.level ||
tc->tex_z != addr.bits.z) {
/* get new transfer (view into texture) */
if (tc->tex_trans) {
if (tc->tex_trans_map) {
tc->screen->transfer_unmap(tc->screen, tc->tex_trans);
tc->tex_trans_map = NULL;
}
screen->tex_transfer_destroy(tc->tex_trans);
tc->tex_trans = NULL;
}
tc->tex_trans =
screen->get_tex_transfer(screen, tc->texture,
addr.bits.face,
addr.bits.level,
addr.bits.z,
PIPE_TRANSFER_READ, 0, 0,
tc->texture->width[addr.bits.level],
tc->texture->height[addr.bits.level]);
tc->tex_trans_map = screen->transfer_map(screen, tc->tex_trans);
tc->tex_face = addr.bits.face;
tc->tex_level = addr.bits.level;
tc->tex_z = addr.bits.z;
}
/* get tile from the transfer (view into texture) */
pipe_get_tile_rgba(tc->tex_trans,
addr.bits.x * TILE_SIZE,
addr.bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
(float *) tile->data.color);
tile->addr = addr;
}
tc->last_tile = tile;
return tile;
}

161
src/gallium/drivers/softpipe/sp_tex_tile_cache.h Normal file
View File

@ -0,0 +1,161 @@
/**************************************************************************
*
* 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 SP_TEX_TILE_CACHE_H
#define SP_TEX_TILE_CACHE_H
#include "pipe/p_compiler.h"
struct softpipe_context;
struct softpipe_tex_tile_cache;
/**
* Cache tile size (width and height). This needs to be a power of two.
*/
#define TILE_SIZE 64
/* If we need to support > 4096, just expand this to be a 64 bit
* union, or consider tiling in Z as well.
*/
union tex_tile_address {
struct {
unsigned x:6; /* 4096 / TILE_SIZE */
unsigned y:6; /* 4096 / TILE_SIZE */
unsigned z:12; /* 4096 -- z not tiled */
unsigned face:3;
unsigned level:4;
unsigned invalid:1;
} bits;
unsigned value;
};
struct softpipe_tex_cached_tile
{
union tex_tile_address addr;
union {
float color[TILE_SIZE][TILE_SIZE][4];
} data;
};
#define NUM_ENTRIES 50
/** XXX move these */
#define MAX_WIDTH 2048
#define MAX_HEIGHT 2048
struct softpipe_tex_tile_cache
{
struct pipe_screen *screen;
struct pipe_transfer *transfer;
void *transfer_map;
struct pipe_texture *texture; /**< if caching a texture */
unsigned timestamp;
struct softpipe_tex_cached_tile entries[NUM_ENTRIES];
struct pipe_transfer *tex_trans;
void *tex_trans_map;
int tex_face, tex_level, tex_z;
struct softpipe_tex_cached_tile *last_tile; /**< most recently retrieved tile */
};
extern struct softpipe_tex_tile_cache *
sp_create_tex_tile_cache( struct pipe_screen *screen );
extern void
sp_destroy_tex_tile_cache(struct softpipe_tex_tile_cache *tc);
extern void
sp_tex_tile_cache_map_transfers(struct softpipe_tex_tile_cache *tc);
extern void
sp_tex_tile_cache_unmap_transfers(struct softpipe_tex_tile_cache *tc);
extern void
sp_tex_tile_cache_set_texture(struct softpipe_tex_tile_cache *tc,
struct pipe_texture *texture);
void
sp_tex_tile_cache_validate_texture(struct softpipe_tex_tile_cache *tc);
extern void
sp_flush_tex_tile_cache(struct softpipe_tex_tile_cache *tc);
extern const struct softpipe_tex_cached_tile *
sp_find_cached_tile_tex(struct softpipe_tex_tile_cache *tc,
union tex_tile_address addr );
static INLINE const union tex_tile_address
tex_tile_address( unsigned x,
unsigned y,
unsigned z,
unsigned face,
unsigned level )
{
union tex_tile_address addr;
addr.value = 0;
addr.bits.x = x / TILE_SIZE;
addr.bits.y = y / TILE_SIZE;
addr.bits.z = z;
addr.bits.face = face;
addr.bits.level = level;
return addr;
}
/* Quickly retrieve tile if it matches last lookup.
*/
static INLINE const struct softpipe_tex_cached_tile *
sp_get_cached_tile_tex(struct softpipe_tex_tile_cache *tc,
union tex_tile_address addr )
{
if (tc->last_tile->addr.value == addr.value)
return tc->last_tile;
return sp_find_cached_tile_tex( tc, addr );
}
#endif /* SP_TEX_TILE_CACHE_H */

171
src/gallium/drivers/softpipe/sp_tile_cache.c
View File

@ -26,7 +26,7 @@
**************************************************************************/
/**
* Texture tile caching.
* Render target tile caching.
*
* Author:
* Brian Paul
@ -37,7 +37,6 @@
#include "util/u_tile.h"
#include "sp_context.h"
#include "sp_surface.h"
#include "sp_texture.h"
#include "sp_tile_cache.h"
@ -111,10 +110,6 @@ sp_destroy_tile_cache(struct softpipe_tile_cache *tc)
screen = tc->transfer->texture->screen;
screen->tex_transfer_destroy(tc->transfer);
}
if (tc->tex_trans) {
screen = tc->tex_trans->texture->screen;
screen->tex_transfer_destroy(tc->tex_trans);
}
FREE( tc );
}
@ -127,8 +122,6 @@ void
sp_tile_cache_set_surface(struct softpipe_tile_cache *tc,
struct pipe_surface *ps)
{
assert(!tc->texture);
if (tc->transfer) {
struct pipe_screen *screen = tc->transfer->texture->screen;
@ -180,9 +173,6 @@ sp_tile_cache_map_transfers(struct softpipe_tile_cache *tc)
{
if (tc->transfer && !tc->transfer_map)
tc->transfer_map = tc->screen->transfer_map(tc->screen, tc->transfer);
if (tc->tex_trans && !tc->tex_trans_map)
tc->tex_trans_map = tc->screen->transfer_map(tc->screen, tc->tex_trans);
}
@ -193,68 +183,8 @@ sp_tile_cache_unmap_transfers(struct softpipe_tile_cache *tc)
tc->screen->transfer_unmap(tc->screen, tc->transfer);
tc->transfer_map = NULL;
}
if (tc->tex_trans_map) {
tc->screen->transfer_unmap(tc->screen, tc->tex_trans);
tc->tex_trans_map = NULL;
}
}
void
sp_tile_cache_validate_texture(struct softpipe_tile_cache *tc)
{
if (tc->texture) {
struct softpipe_texture *spt = softpipe_texture(tc->texture);
if (spt->timestamp != tc->timestamp) {
/* texture was modified, invalidate all cached tiles */
uint i;
_debug_printf("INV %d %d\n", tc->timestamp, spt->timestamp);
for (i = 0; i < NUM_ENTRIES; i++) {
tc->entries[i].addr.bits.invalid = 1;
}
tc->timestamp = spt->timestamp;
}
}
}
/**
* Specify the texture to cache.
*/
void
sp_tile_cache_set_texture(struct softpipe_tile_cache *tc,
struct pipe_texture *texture)
{
uint i;
assert(!tc->transfer);
if (tc->texture != texture) {
pipe_texture_reference(&tc->texture, texture);
if (tc->tex_trans) {
struct pipe_screen *screen = tc->tex_trans->texture->screen;
if (tc->tex_trans_map) {
screen->transfer_unmap(screen, tc->tex_trans);
tc->tex_trans_map = NULL;
}
screen->tex_transfer_destroy(tc->tex_trans);
tc->tex_trans = NULL;
}
/* mark as entries as invalid/empty */
/* XXX we should try to avoid this when the teximage hasn't changed */
for (i = 0; i < NUM_ENTRIES; i++) {
tc->entries[i].addr.bits.invalid = 1;
}
tc->tex_face = -1; /* any invalid value here */
}
}
/**
* Set pixels in a tile to the given clear color/value, float.
*/
@ -345,7 +275,7 @@ sp_tile_cache_flush_clear(struct softpipe_tile_cache *tc)
/* push the tile to all positions marked as clear */
for (y = 0; y < h; y += TILE_SIZE) {
for (x = 0; x < w; x += TILE_SIZE) {
union tile_address addr = tile_address(x, y, 0, 0, 0);
union tile_address addr = tile_address(x, y);
if (is_clear_flag_set(tc->clear_flags, addr)) {
pipe_put_tile_raw(pt,
@ -403,13 +333,6 @@ sp_flush_tile_cache(struct softpipe_tile_cache *tc)
sp_tile_cache_flush_clear(tc);
#endif
}
else if (tc->texture) {
/* caching a texture, mark all entries as empty */
for (pos = 0; pos < NUM_ENTRIES; pos++) {
tc->entries[pos].addr.bits.invalid = 1;
}
tc->tex_face = -1;
}
#if 0
debug_printf("flushed tiles in use: %d\n", inuse);
@ -488,97 +411,7 @@ sp_find_cached_tile(struct softpipe_tile_cache *tc,
}
/**
* Given the texture face, level, zslice, x and y values, compute
* the cache entry position/index where we'd hope to find the
* cached texture tile.
* This is basically a direct-map cache.
* XXX There's probably lots of ways in which we can improve this.
*/
static INLINE uint
tex_cache_pos( union tile_address addr )
{
uint entry = (addr.bits.x +
addr.bits.y * 9 +
addr.bits.z * 3 +
addr.bits.face +
addr.bits.level * 7);
return entry % NUM_ENTRIES;
}
/**
* Similar to sp_get_cached_tile() but for textures.
* Tiles are read-only and indexed with more params.
*/
const struct softpipe_cached_tile *
sp_find_cached_tile_tex(struct softpipe_tile_cache *tc,
union tile_address addr )
{
struct pipe_screen *screen = tc->screen;
struct softpipe_cached_tile *tile;
tile = tc->entries + tex_cache_pos( addr );
if (addr.value != tile->addr.value) {
/* cache miss. Most misses are because we've invaldiated the
* texture cache previously -- most commonly on binding a new
* texture. Currently we effectively flush the cache on texture
* bind.
*/
#if 0
_debug_printf("miss at %u: x=%d y=%d z=%d face=%d level=%d\n"
" tile %u: x=%d y=%d z=%d face=%d level=%d\n",
pos, x/TILE_SIZE, y/TILE_SIZE, z, face, level,
pos, tile->addr.bits.x, tile->addr.bits.y, tile->z, tile->face, tile->level);
#endif
/* check if we need to get a new transfer */
if (!tc->tex_trans ||
tc->tex_face != addr.bits.face ||
tc->tex_level != addr.bits.level ||
tc->tex_z != addr.bits.z) {
/* get new transfer (view into texture) */
if (tc->tex_trans) {
if (tc->tex_trans_map) {
tc->screen->transfer_unmap(tc->screen, tc->tex_trans);
tc->tex_trans_map = NULL;
}
screen->tex_transfer_destroy(tc->tex_trans);
tc->tex_trans = NULL;
}
tc->tex_trans =
screen->get_tex_transfer(screen, tc->texture,
addr.bits.face,
addr.bits.level,
addr.bits.z,
PIPE_TRANSFER_READ, 0, 0,
tc->texture->width[addr.bits.level],
tc->texture->height[addr.bits.level]);
tc->tex_trans_map = screen->transfer_map(screen, tc->tex_trans);
tc->tex_face = addr.bits.face;
tc->tex_level = addr.bits.level;
tc->tex_z = addr.bits.z;
}
/* get tile from the transfer (view into texture) */
pipe_get_tile_rgba(tc->tex_trans,
addr.bits.x * TILE_SIZE,
addr.bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
(float *) tile->data.color);
tile->addr = addr;
}
tc->last_tile = tile;
return tile;
}
/**

42
src/gallium/drivers/softpipe/sp_tile_cache.h
View File

@ -51,10 +51,8 @@ union tile_address {
struct {
unsigned x:6; /* 4096 / TILE_SIZE */
unsigned y:6; /* 4096 / TILE_SIZE */
unsigned z:12; /* 4096 -- z not tiled */
unsigned face:3;
unsigned level:4;
unsigned invalid:1;
unsigned pad:19;
} bits;
unsigned value;
};
@ -88,19 +86,12 @@ struct softpipe_tile_cache
struct pipe_transfer *transfer;
void *transfer_map;
struct pipe_texture *texture; /**< if caching a texture */
unsigned timestamp;
struct softpipe_cached_tile entries[NUM_ENTRIES];
uint clear_flags[(MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32];
float clear_color[4]; /**< for color bufs */
uint clear_val; /**< for z+stencil, or packed color clear value */
boolean depth_stencil; /**< Is the surface a depth/stencil format? */
struct pipe_transfer *tex_trans;
void *tex_trans_map;
int tex_face, tex_level, tex_z;
struct softpipe_cached_tile tile; /**< scratch tile for clears */
struct softpipe_cached_tile *last_tile; /**< most recently retrieved tile */
@ -126,13 +117,6 @@ sp_tile_cache_map_transfers(struct softpipe_tile_cache *tc);
extern void
sp_tile_cache_unmap_transfers(struct softpipe_tile_cache *tc);
extern void
sp_tile_cache_set_texture(struct softpipe_tile_cache *tc,
struct pipe_texture *texture);
void
sp_tile_cache_validate_texture(struct softpipe_tile_cache *tc);
extern void
sp_flush_tile_cache(struct softpipe_tile_cache *tc);
@ -144,47 +128,27 @@ extern struct softpipe_cached_tile *
sp_find_cached_tile(struct softpipe_tile_cache *tc,
union tile_address addr );
extern const struct softpipe_cached_tile *
sp_find_cached_tile_tex(struct softpipe_tile_cache *tc,
union tile_address addr );
static INLINE const union tile_address
tile_address( unsigned x,
unsigned y,
unsigned z,
unsigned face,
unsigned level )
unsigned y )
{
union tile_address addr;
addr.value = 0;
addr.bits.x = x / TILE_SIZE;
addr.bits.y = y / TILE_SIZE;
addr.bits.z = z;
addr.bits.face = face;
addr.bits.level = level;
return addr;
}
/* Quickly retrieve tile if it matches last lookup.
*/
static INLINE const struct softpipe_cached_tile *
sp_get_cached_tile_tex(struct softpipe_tile_cache *tc,
union tile_address addr )
{
if (tc->last_tile->addr.value == addr.value)
return tc->last_tile;
return sp_find_cached_tile_tex( tc, addr );
}
static INLINE struct softpipe_cached_tile *
sp_get_cached_tile(struct softpipe_tile_cache *tc,
int x, int y )
{
union tile_address addr = tile_address( x, y, 0, 0, 0 );
union tile_address addr = tile_address( x, y );
if (tc->last_tile->addr.value == addr.value)
return tc->last_tile;