forked from KolibriOS/kolibrios
616 lines
20 KiB
C
616 lines
20 KiB
C
/**************************************************************************
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*
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* Render target tile caching.
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*
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* Author:
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* Brian Paul
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*/
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#include "util/u_inlines.h"
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#include "util/u_format.h"
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#include "util/u_memory.h"
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#include "util/u_tile.h"
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#include "sp_tile_cache.h"
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static struct softpipe_cached_tile *
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sp_alloc_tile(struct softpipe_tile_cache *tc);
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/**
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* Return the position in the cache for the tile that contains win pos (x,y).
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* We currently use a direct mapped cache so this is like a hack key.
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* At some point we should investige something more sophisticated, like
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* a LRU replacement policy.
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*/
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#define CACHE_POS(x, y) \
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(((x) + (y) * 5) % NUM_ENTRIES)
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/**
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* Is the tile at (x,y) in cleared state?
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*/
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static INLINE uint
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is_clear_flag_set(const uint *bitvec, union tile_address addr)
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{
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int pos, bit;
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pos = addr.bits.y * (MAX_WIDTH / TILE_SIZE) + addr.bits.x;
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assert(pos / 32 < (MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32);
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bit = bitvec[pos / 32] & (1 << (pos & 31));
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return bit;
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}
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/**
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* Mark the tile at (x,y) as not cleared.
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*/
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static INLINE void
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clear_clear_flag(uint *bitvec, union tile_address addr)
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{
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int pos;
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pos = addr.bits.y * (MAX_WIDTH / TILE_SIZE) + addr.bits.x;
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assert(pos / 32 < (MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32);
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bitvec[pos / 32] &= ~(1 << (pos & 31));
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}
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struct softpipe_tile_cache *
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sp_create_tile_cache( struct pipe_context *pipe )
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{
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struct softpipe_tile_cache *tc;
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uint pos;
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int maxLevels, maxTexSize;
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/* sanity checking: max sure MAX_WIDTH/HEIGHT >= largest texture image */
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maxLevels = pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
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maxTexSize = 1 << (maxLevels - 1);
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assert(MAX_WIDTH >= maxTexSize);
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assert(sizeof(union tile_address) == 4);
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assert((TILE_SIZE << TILE_ADDR_BITS) >= MAX_WIDTH);
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tc = CALLOC_STRUCT( softpipe_tile_cache );
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if (tc) {
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tc->pipe = pipe;
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for (pos = 0; pos < Elements(tc->tile_addrs); pos++) {
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tc->tile_addrs[pos].bits.invalid = 1;
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}
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tc->last_tile_addr.bits.invalid = 1;
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/* this allocation allows us to guarantee that allocation
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* failures are never fatal later
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*/
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tc->tile = MALLOC_STRUCT( softpipe_cached_tile );
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if (!tc->tile)
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{
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FREE(tc);
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return NULL;
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}
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/* XXX this code prevents valgrind warnings about use of uninitialized
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* memory in programs that don't clear the surface before rendering.
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* However, it breaks clearing in other situations (such as in
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* progs/tests/drawbuffers, see bug 24402).
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*/
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#if 0
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/* set flags to indicate all the tiles are cleared */
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memset(tc->clear_flags, 255, sizeof(tc->clear_flags));
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#endif
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}
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return tc;
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}
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void
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sp_destroy_tile_cache(struct softpipe_tile_cache *tc)
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{
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if (tc) {
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uint pos;
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for (pos = 0; pos < Elements(tc->entries); pos++) {
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/*assert(tc->entries[pos].x < 0);*/
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FREE( tc->entries[pos] );
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}
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FREE( tc->tile );
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if (tc->transfer) {
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tc->pipe->transfer_unmap(tc->pipe, tc->transfer);
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}
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FREE( tc );
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}
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}
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/**
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* Specify the surface to cache.
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*/
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void
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sp_tile_cache_set_surface(struct softpipe_tile_cache *tc,
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struct pipe_surface *ps)
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{
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struct pipe_context *pipe = tc->pipe;
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if (tc->transfer_map) {
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if (ps == tc->surface)
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return;
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pipe->transfer_unmap(pipe, tc->transfer);
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tc->transfer = NULL;
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tc->transfer_map = NULL;
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}
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tc->surface = ps;
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if (ps) {
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if (ps->texture->target != PIPE_BUFFER) {
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tc->transfer_map = pipe_transfer_map(pipe, ps->texture,
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ps->u.tex.level, ps->u.tex.first_layer,
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PIPE_TRANSFER_READ_WRITE |
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PIPE_TRANSFER_UNSYNCHRONIZED,
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0, 0, ps->width, ps->height,
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&tc->transfer);
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}
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else {
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/* can't render to buffers */
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assert(0);
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}
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tc->depth_stencil = util_format_is_depth_or_stencil(ps->format);
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}
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}
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/**
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* Return the transfer being cached.
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*/
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struct pipe_surface *
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sp_tile_cache_get_surface(struct softpipe_tile_cache *tc)
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{
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return tc->surface;
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}
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/**
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* Set pixels in a tile to the given clear color/value, float.
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*/
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static void
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clear_tile_rgba(struct softpipe_cached_tile *tile,
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enum pipe_format format,
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const union pipe_color_union *clear_value)
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{
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if (clear_value->f[0] == 0.0 &&
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clear_value->f[1] == 0.0 &&
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clear_value->f[2] == 0.0 &&
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clear_value->f[3] == 0.0) {
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memset(tile->data.color, 0, sizeof(tile->data.color));
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}
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else {
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uint i, j;
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if (util_format_is_pure_uint(format)) {
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for (i = 0; i < TILE_SIZE; i++) {
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for (j = 0; j < TILE_SIZE; j++) {
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tile->data.colorui128[i][j][0] = clear_value->ui[0];
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tile->data.colorui128[i][j][1] = clear_value->ui[1];
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tile->data.colorui128[i][j][2] = clear_value->ui[2];
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tile->data.colorui128[i][j][3] = clear_value->ui[3];
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}
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}
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} else if (util_format_is_pure_sint(format)) {
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for (i = 0; i < TILE_SIZE; i++) {
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for (j = 0; j < TILE_SIZE; j++) {
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tile->data.colori128[i][j][0] = clear_value->i[0];
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tile->data.colori128[i][j][1] = clear_value->i[1];
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tile->data.colori128[i][j][2] = clear_value->i[2];
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tile->data.colori128[i][j][3] = clear_value->i[3];
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}
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}
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} else {
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for (i = 0; i < TILE_SIZE; i++) {
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for (j = 0; j < TILE_SIZE; j++) {
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tile->data.color[i][j][0] = clear_value->f[0];
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tile->data.color[i][j][1] = clear_value->f[1];
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tile->data.color[i][j][2] = clear_value->f[2];
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tile->data.color[i][j][3] = clear_value->f[3];
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}
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}
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}
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}
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}
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/**
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* Set a tile to a solid value/color.
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*/
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static void
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clear_tile(struct softpipe_cached_tile *tile,
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enum pipe_format format,
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uint64_t clear_value)
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{
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uint i, j;
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switch (util_format_get_blocksize(format)) {
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case 1:
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memset(tile->data.any, (int) clear_value, TILE_SIZE * TILE_SIZE);
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break;
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case 2:
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if (clear_value == 0) {
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memset(tile->data.any, 0, 2 * TILE_SIZE * TILE_SIZE);
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}
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else {
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for (i = 0; i < TILE_SIZE; i++) {
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for (j = 0; j < TILE_SIZE; j++) {
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tile->data.depth16[i][j] = (ushort) clear_value;
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}
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}
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}
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break;
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case 4:
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if (clear_value == 0) {
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memset(tile->data.any, 0, 4 * TILE_SIZE * TILE_SIZE);
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}
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else {
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for (i = 0; i < TILE_SIZE; i++) {
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for (j = 0; j < TILE_SIZE; j++) {
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tile->data.depth32[i][j] = (uint) clear_value;
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}
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}
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}
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break;
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case 8:
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if (clear_value == 0) {
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memset(tile->data.any, 0, 8 * TILE_SIZE * TILE_SIZE);
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}
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else {
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for (i = 0; i < TILE_SIZE; i++) {
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for (j = 0; j < TILE_SIZE; j++) {
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tile->data.depth64[i][j] = clear_value;
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}
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}
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}
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break;
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default:
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assert(0);
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}
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}
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/**
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* Actually clear the tiles which were flagged as being in a clear state.
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*/
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static void
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sp_tile_cache_flush_clear(struct softpipe_tile_cache *tc)
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{
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struct pipe_transfer *pt = tc->transfer;
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const uint w = tc->transfer->box.width;
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const uint h = tc->transfer->box.height;
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uint x, y;
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uint numCleared = 0;
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assert(pt->resource);
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if (!tc->tile)
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tc->tile = sp_alloc_tile(tc);
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/* clear the scratch tile to the clear value */
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if (tc->depth_stencil) {
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clear_tile(tc->tile, pt->resource->format, tc->clear_val);
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} else {
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clear_tile_rgba(tc->tile, pt->resource->format, &tc->clear_color);
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}
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/* push the tile to all positions marked as clear */
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for (y = 0; y < h; y += TILE_SIZE) {
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for (x = 0; x < w; x += TILE_SIZE) {
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union tile_address addr = tile_address(x, y);
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if (is_clear_flag_set(tc->clear_flags, addr)) {
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/* write the scratch tile to the surface */
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if (tc->depth_stencil) {
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pipe_put_tile_raw(pt, tc->transfer_map,
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x, y, TILE_SIZE, TILE_SIZE,
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tc->tile->data.any, 0/*STRIDE*/);
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}
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else {
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if (util_format_is_pure_uint(tc->surface->format)) {
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pipe_put_tile_ui_format(pt, tc->transfer_map,
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x, y, TILE_SIZE, TILE_SIZE,
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pt->resource->format,
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(unsigned *) tc->tile->data.colorui128);
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} else if (util_format_is_pure_sint(tc->surface->format)) {
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pipe_put_tile_i_format(pt, tc->transfer_map,
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x, y, TILE_SIZE, TILE_SIZE,
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pt->resource->format,
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(int *) tc->tile->data.colori128);
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} else {
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pipe_put_tile_rgba(pt, tc->transfer_map,
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x, y, TILE_SIZE, TILE_SIZE,
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(float *) tc->tile->data.color);
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}
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}
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numCleared++;
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}
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}
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}
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/* reset all clear flags to zero */
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memset(tc->clear_flags, 0, sizeof(tc->clear_flags));
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#if 0
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debug_printf("num cleared: %u\n", numCleared);
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#endif
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}
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static void
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sp_flush_tile(struct softpipe_tile_cache* tc, unsigned pos)
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{
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if (!tc->tile_addrs[pos].bits.invalid) {
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if (tc->depth_stencil) {
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pipe_put_tile_raw(tc->transfer, tc->transfer_map,
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tc->tile_addrs[pos].bits.x * TILE_SIZE,
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tc->tile_addrs[pos].bits.y * TILE_SIZE,
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TILE_SIZE, TILE_SIZE,
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tc->entries[pos]->data.depth32, 0/*STRIDE*/);
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}
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else {
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if (util_format_is_pure_uint(tc->surface->format)) {
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pipe_put_tile_ui_format(tc->transfer, tc->transfer_map,
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tc->tile_addrs[pos].bits.x * TILE_SIZE,
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tc->tile_addrs[pos].bits.y * TILE_SIZE,
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TILE_SIZE, TILE_SIZE,
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tc->surface->format,
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(unsigned *) tc->entries[pos]->data.colorui128);
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} else if (util_format_is_pure_sint(tc->surface->format)) {
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pipe_put_tile_i_format(tc->transfer, tc->transfer_map,
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tc->tile_addrs[pos].bits.x * TILE_SIZE,
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tc->tile_addrs[pos].bits.y * TILE_SIZE,
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TILE_SIZE, TILE_SIZE,
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tc->surface->format,
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(int *) tc->entries[pos]->data.colori128);
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} else {
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pipe_put_tile_rgba_format(tc->transfer, tc->transfer_map,
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tc->tile_addrs[pos].bits.x * TILE_SIZE,
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tc->tile_addrs[pos].bits.y * TILE_SIZE,
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TILE_SIZE, TILE_SIZE,
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tc->surface->format,
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(float *) tc->entries[pos]->data.color);
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}
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}
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tc->tile_addrs[pos].bits.invalid = 1; /* mark as empty */
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}
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}
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/**
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* Flush the tile cache: write all dirty tiles back to the transfer.
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* any tiles "flagged" as cleared will be "really" cleared.
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*/
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void
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sp_flush_tile_cache(struct softpipe_tile_cache *tc)
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{
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struct pipe_transfer *pt = tc->transfer;
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int inuse = 0, pos;
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if (pt) {
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/* caching a drawing transfer */
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for (pos = 0; pos < Elements(tc->entries); pos++) {
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struct softpipe_cached_tile *tile = tc->entries[pos];
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if (!tile)
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{
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assert(tc->tile_addrs[pos].bits.invalid);
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continue;
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}
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sp_flush_tile(tc, pos);
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++inuse;
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}
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sp_tile_cache_flush_clear(tc);
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tc->last_tile_addr.bits.invalid = 1;
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}
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#if 0
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debug_printf("flushed tiles in use: %d\n", inuse);
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#endif
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}
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static struct softpipe_cached_tile *
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sp_alloc_tile(struct softpipe_tile_cache *tc)
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{
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struct softpipe_cached_tile * tile = MALLOC_STRUCT(softpipe_cached_tile);
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if (!tile)
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{
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/* in this case, steal an existing tile */
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if (!tc->tile)
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{
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unsigned pos;
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for (pos = 0; pos < Elements(tc->entries); ++pos) {
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if (!tc->entries[pos])
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continue;
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sp_flush_tile(tc, pos);
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tc->tile = tc->entries[pos];
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tc->entries[pos] = NULL;
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break;
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}
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/* this should never happen */
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if (!tc->tile)
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abort();
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}
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tile = tc->tile;
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tc->tile = NULL;
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tc->last_tile_addr.bits.invalid = 1;
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}
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return tile;
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}
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/**
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* Get a tile from the cache.
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* \param x, y position of tile, in pixels
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*/
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struct softpipe_cached_tile *
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sp_find_cached_tile(struct softpipe_tile_cache *tc,
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union tile_address addr )
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{
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struct pipe_transfer *pt = tc->transfer;
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/* cache pos/entry: */
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const int pos = CACHE_POS(addr.bits.x,
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addr.bits.y);
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struct softpipe_cached_tile *tile = tc->entries[pos];
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if (!tile) {
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tile = sp_alloc_tile(tc);
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tc->entries[pos] = tile;
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}
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if (addr.value != tc->tile_addrs[pos].value) {
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assert(pt->resource);
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if (tc->tile_addrs[pos].bits.invalid == 0) {
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/* put dirty tile back in framebuffer */
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if (tc->depth_stencil) {
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pipe_put_tile_raw(pt, tc->transfer_map,
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tc->tile_addrs[pos].bits.x * TILE_SIZE,
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tc->tile_addrs[pos].bits.y * TILE_SIZE,
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TILE_SIZE, TILE_SIZE,
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tile->data.depth32, 0/*STRIDE*/);
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}
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else {
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if (util_format_is_pure_uint(tc->surface->format)) {
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pipe_put_tile_ui_format(pt, tc->transfer_map,
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tc->tile_addrs[pos].bits.x * TILE_SIZE,
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tc->tile_addrs[pos].bits.y * TILE_SIZE,
|
|
TILE_SIZE, TILE_SIZE,
|
|
tc->surface->format,
|
|
(unsigned *) tile->data.colorui128);
|
|
} else if (util_format_is_pure_sint(tc->surface->format)) {
|
|
pipe_put_tile_i_format(pt, tc->transfer_map,
|
|
tc->tile_addrs[pos].bits.x * TILE_SIZE,
|
|
tc->tile_addrs[pos].bits.y * TILE_SIZE,
|
|
TILE_SIZE, TILE_SIZE,
|
|
tc->surface->format,
|
|
(int *) tile->data.colori128);
|
|
} else {
|
|
pipe_put_tile_rgba_format(pt, tc->transfer_map,
|
|
tc->tile_addrs[pos].bits.x * TILE_SIZE,
|
|
tc->tile_addrs[pos].bits.y * TILE_SIZE,
|
|
TILE_SIZE, TILE_SIZE,
|
|
tc->surface->format,
|
|
(float *) tile->data.color);
|
|
}
|
|
}
|
|
}
|
|
|
|
tc->tile_addrs[pos] = addr;
|
|
|
|
if (is_clear_flag_set(tc->clear_flags, addr)) {
|
|
/* don't get tile from framebuffer, just clear it */
|
|
if (tc->depth_stencil) {
|
|
clear_tile(tile, pt->resource->format, tc->clear_val);
|
|
}
|
|
else {
|
|
clear_tile_rgba(tile, pt->resource->format, &tc->clear_color);
|
|
}
|
|
clear_clear_flag(tc->clear_flags, addr);
|
|
}
|
|
else {
|
|
/* get new tile data from transfer */
|
|
if (tc->depth_stencil) {
|
|
pipe_get_tile_raw(pt, tc->transfer_map,
|
|
tc->tile_addrs[pos].bits.x * TILE_SIZE,
|
|
tc->tile_addrs[pos].bits.y * TILE_SIZE,
|
|
TILE_SIZE, TILE_SIZE,
|
|
tile->data.depth32, 0/*STRIDE*/);
|
|
}
|
|
else {
|
|
if (util_format_is_pure_uint(tc->surface->format)) {
|
|
pipe_get_tile_ui_format(pt, tc->transfer_map,
|
|
tc->tile_addrs[pos].bits.x * TILE_SIZE,
|
|
tc->tile_addrs[pos].bits.y * TILE_SIZE,
|
|
TILE_SIZE, TILE_SIZE,
|
|
tc->surface->format,
|
|
(unsigned *) tile->data.colorui128);
|
|
} else if (util_format_is_pure_sint(tc->surface->format)) {
|
|
pipe_get_tile_i_format(pt, tc->transfer_map,
|
|
tc->tile_addrs[pos].bits.x * TILE_SIZE,
|
|
tc->tile_addrs[pos].bits.y * TILE_SIZE,
|
|
TILE_SIZE, TILE_SIZE,
|
|
tc->surface->format,
|
|
(int *) tile->data.colori128);
|
|
} else {
|
|
pipe_get_tile_rgba_format(pt, tc->transfer_map,
|
|
tc->tile_addrs[pos].bits.x * TILE_SIZE,
|
|
tc->tile_addrs[pos].bits.y * TILE_SIZE,
|
|
TILE_SIZE, TILE_SIZE,
|
|
tc->surface->format,
|
|
(float *) tile->data.color);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
tc->last_tile = tile;
|
|
tc->last_tile_addr = addr;
|
|
return tile;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
* When a whole surface is being cleared to a value we can avoid
|
|
* fetching tiles above.
|
|
* Save the color and set a 'clearflag' for each tile of the screen.
|
|
*/
|
|
void
|
|
sp_tile_cache_clear(struct softpipe_tile_cache *tc,
|
|
const union pipe_color_union *color,
|
|
uint64_t clearValue)
|
|
{
|
|
uint pos;
|
|
|
|
tc->clear_color = *color;
|
|
|
|
tc->clear_val = clearValue;
|
|
|
|
/* set flags to indicate all the tiles are cleared */
|
|
memset(tc->clear_flags, 255, sizeof(tc->clear_flags));
|
|
|
|
for (pos = 0; pos < Elements(tc->tile_addrs); pos++) {
|
|
tc->tile_addrs[pos].bits.invalid = 1;
|
|
}
|
|
tc->last_tile_addr.bits.invalid = 1;
|
|
}
|