**************************************************************************/
/**
- * Texture tile caching.
+ * Render target 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_tile_cache.h"
-#define NUM_ENTRIES 50
-
-
-/** XXX move these */
-#define MAX_WIDTH 2048
-#define MAX_HEIGHT 2048
-
-
-struct softpipe_tile_cache
-{
- struct pipe_screen *screen;
- struct pipe_surface *surface; /**< the surface we're caching */
- struct pipe_transfer *transfer;
- void *transfer_map;
- struct pipe_texture *texture; /**< if caching a texture */
- 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 */
-};
/**
* a LRU replacement policy.
*/
#define CACHE_POS(x, y) \
- (((x) / TILE_SIZE + ((y) / TILE_SIZE) * 5) % NUM_ENTRIES)
+ (((x) + (y) * 5) % NUM_ENTRIES)
* Is the tile at (x,y) in cleared state?
*/
static INLINE uint
-is_clear_flag_set(const uint *bitvec, int x, int y)
+is_clear_flag_set(const uint *bitvec, union tile_address addr)
{
int pos, bit;
- x /= TILE_SIZE;
- y /= TILE_SIZE;
- pos = y * (MAX_WIDTH / TILE_SIZE) + x;
+ pos = addr.bits.y * (MAX_WIDTH / TILE_SIZE) + addr.bits.x;
assert(pos / 32 < (MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32);
bit = bitvec[pos / 32] & (1 << (pos & 31));
return bit;
* Mark the tile at (x,y) as not cleared.
*/
static INLINE void
-clear_clear_flag(uint *bitvec, int x, int y)
+clear_clear_flag(uint *bitvec, union tile_address addr)
{
int pos;
- x /= TILE_SIZE;
- y /= TILE_SIZE;
- pos = y * (MAX_WIDTH / TILE_SIZE) + x;
+ pos = addr.bits.y * (MAX_WIDTH / TILE_SIZE) + addr.bits.x;
assert(pos / 32 < (MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32);
bitvec[pos / 32] &= ~(1 << (pos & 31));
}
{
struct softpipe_tile_cache *tc;
uint pos;
+ int maxLevels, maxTexSize;
+
+ /* sanity checking: max sure MAX_WIDTH/HEIGHT >= largest texture image */
+ maxLevels = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
+ maxTexSize = 1 << (maxLevels - 1);
+ assert(MAX_WIDTH >= maxTexSize);
tc = CALLOC_STRUCT( softpipe_tile_cache );
if (tc) {
tc->screen = screen;
for (pos = 0; pos < NUM_ENTRIES; pos++) {
- tc->entries[pos].x =
- tc->entries[pos].y = -1;
+ tc->entries[pos].addr.bits.invalid = 1;
}
+ tc->last_tile = &tc->entries[0]; /* any tile */
+
+ /* XXX this code prevents valgrind warnings about use of uninitialized
+ * memory in programs that don't clear the surface before rendering.
+ * However, it breaks clearing in other situations (such as in
+ * progs/tests/drawbuffers, see bug 24402).
+ */
+#if 0 && TILE_CLEAR_OPTIMIZATION
+ /* set flags to indicate all the tiles are cleared */
+ memset(tc->clear_flags, 255, sizeof(tc->clear_flags));
+#endif
}
return 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 );
}
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;
{
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);
}
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;
- }
-}
-
-
-/**
- * Specify the texture to cache.
- */
-void
-sp_tile_cache_set_texture(struct pipe_context *pipe,
- struct softpipe_tile_cache *tc,
- struct pipe_texture *texture)
-{
- uint i;
-
- assert(!tc->transfer);
-
- 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].x = -1;
- }
-
- tc->tex_face = -1; /* any invalid value here */
}
switch (pf_get_size(format)) {
case 1:
- memset(tile->data.any, 0, TILE_SIZE * TILE_SIZE);
+ memset(tile->data.any, clear_value, TILE_SIZE * TILE_SIZE);
break;
case 2:
if (clear_value == 0) {
* Actually clear the tiles which were flagged as being in a clear state.
*/
static void
-sp_tile_cache_flush_clear(struct pipe_context *pipe,
- struct softpipe_tile_cache *tc)
+sp_tile_cache_flush_clear(struct softpipe_tile_cache *tc)
{
struct pipe_transfer *pt = tc->transfer;
const uint w = tc->transfer->width;
/* 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) {
- if (is_clear_flag_set(tc->clear_flags, x, y)) {
+ union tile_address addr = tile_address(x, y);
+
+ if (is_clear_flag_set(tc->clear_flags, addr)) {
pipe_put_tile_raw(pt,
x, y, TILE_SIZE, TILE_SIZE,
tc->tile.data.color32, 0/*STRIDE*/);
/* do this? */
- clear_clear_flag(tc->clear_flags, x, y);
+ clear_clear_flag(tc->clear_flags, addr);
numCleared++;
}
* any tiles "flagged" as cleared will be "really" cleared.
*/
void
-sp_flush_tile_cache(struct softpipe_context *softpipe,
- struct softpipe_tile_cache *tc)
+sp_flush_tile_cache(struct softpipe_tile_cache *tc)
{
struct pipe_transfer *pt = tc->transfer;
int inuse = 0, pos;
/* caching a drawing transfer */
for (pos = 0; pos < NUM_ENTRIES; pos++) {
struct softpipe_cached_tile *tile = tc->entries + pos;
- if (tile->x >= 0) {
+ if (!tile->addr.bits.invalid) {
if (tc->depth_stencil) {
pipe_put_tile_raw(pt,
- tile->x, tile->y, TILE_SIZE, TILE_SIZE,
+ tile->addr.bits.x * TILE_SIZE,
+ tile->addr.bits.y * TILE_SIZE,
+ TILE_SIZE, TILE_SIZE,
tile->data.depth32, 0/*STRIDE*/);
}
else {
pipe_put_tile_rgba(pt,
- tile->x, tile->y, TILE_SIZE, TILE_SIZE,
+ tile->addr.bits.x * TILE_SIZE,
+ tile->addr.bits.y * TILE_SIZE,
+ TILE_SIZE, TILE_SIZE,
(float *) tile->data.color);
}
- tile->x = tile->y = -1; /* mark as empty */
+ tile->addr.bits.invalid = 1; /* mark as empty */
inuse++;
}
}
#if TILE_CLEAR_OPTIMIZATION
- sp_tile_cache_flush_clear(&softpipe->pipe, 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].x = -1;
- }
- tc->tex_face = -1;
- }
#if 0
debug_printf("flushed tiles in use: %d\n", inuse);
* \param x, y position of tile, in pixels
*/
struct softpipe_cached_tile *
-sp_get_cached_tile(struct softpipe_context *softpipe,
- struct softpipe_tile_cache *tc, int x, int y)
+sp_find_cached_tile(struct softpipe_tile_cache *tc,
+ union tile_address addr )
{
struct pipe_transfer *pt = tc->transfer;
-
- /* tile pos in framebuffer: */
- const int tile_x = x & ~(TILE_SIZE - 1);
- const int tile_y = y & ~(TILE_SIZE - 1);
-
+
/* cache pos/entry: */
- const int pos = CACHE_POS(x, y);
+ const int pos = CACHE_POS(addr.bits.x,
+ addr.bits.y);
struct softpipe_cached_tile *tile = tc->entries + pos;
- if (tile_x != tile->x ||
- tile_y != tile->y) {
+ if (addr.value != tile->addr.value) {
- if (tile->x != -1) {
+ if (tile->addr.bits.invalid == 0) {
/* put dirty tile back in framebuffer */
if (tc->depth_stencil) {
pipe_put_tile_raw(pt,
- tile->x, tile->y, TILE_SIZE, TILE_SIZE,
+ tile->addr.bits.x * TILE_SIZE,
+ tile->addr.bits.y * TILE_SIZE,
+ TILE_SIZE, TILE_SIZE,
tile->data.depth32, 0/*STRIDE*/);
}
else {
pipe_put_tile_rgba(pt,
- tile->x, tile->y, TILE_SIZE, TILE_SIZE,
+ tile->addr.bits.x * TILE_SIZE,
+ tile->addr.bits.y * TILE_SIZE,
+ TILE_SIZE, TILE_SIZE,
(float *) tile->data.color);
}
}
- tile->x = tile_x;
- tile->y = tile_y;
+ tile->addr = addr;
- if (is_clear_flag_set(tc->clear_flags, x, y)) {
+ 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->format, tc->clear_val);
else {
clear_tile_rgba(tile, pt->format, tc->clear_color);
}
- clear_clear_flag(tc->clear_flags, x, y);
+ clear_clear_flag(tc->clear_flags, addr);
}
else {
/* get new tile data from transfer */
if (tc->depth_stencil) {
pipe_get_tile_raw(pt,
- tile->x, tile->y, TILE_SIZE, TILE_SIZE,
+ tile->addr.bits.x * TILE_SIZE,
+ tile->addr.bits.y * TILE_SIZE,
+ TILE_SIZE, TILE_SIZE,
tile->data.depth32, 0/*STRIDE*/);
}
else {
pipe_get_tile_rgba(pt,
- tile->x, tile->y, TILE_SIZE, TILE_SIZE,
+ tile->addr.bits.x * TILE_SIZE,
+ tile->addr.bits.y * TILE_SIZE,
+ TILE_SIZE, TILE_SIZE,
(float *) tile->data.color);
}
}
}
+ tc->last_tile = tile;
return tile;
}
-/**
- * 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(int x, int y, int z, int face, int level)
-{
- uint entry = x + y * 9 + z * 3 + face + 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_get_cached_tile_tex(struct softpipe_context *sp,
- struct softpipe_tile_cache *tc, int x, int y, int z,
- int face, int level)
-{
- struct pipe_screen *screen = sp->pipe.screen;
- /* tile pos in framebuffer: */
- const int tile_x = x & ~(TILE_SIZE - 1);
- const int tile_y = y & ~(TILE_SIZE - 1);
- /* cache pos/entry: */
- const uint pos = tex_cache_pos(x / TILE_SIZE, y / TILE_SIZE, z,
- face, level);
- struct softpipe_cached_tile *tile = tc->entries + pos;
-
- if (tc->texture) {
- struct softpipe_texture *spt = softpipe_texture(tc->texture);
- if (spt->modified) {
- /* texture was modified, invalidate all cached tiles */
- uint p;
- for (p = 0; p < NUM_ENTRIES; p++) {
- tile = tc->entries + p;
- tile->x = -1;
- }
- spt->modified = FALSE;
- }
- }
-
- if (tile_x != tile->x ||
- tile_y != tile->y ||
- z != tile->z ||
- face != tile->face ||
- level != tile->level) {
- /* cache miss */
-#if 0
- printf("miss at %u x=%d y=%d z=%d face=%d level=%d\n", pos,
- x/TILE_SIZE, y/TILE_SIZE, z, face, level);
-#endif
- /* check if we need to get a new transfer */
- if (!tc->tex_trans ||
- tc->tex_face != face ||
- tc->tex_level != level ||
- tc->tex_z != 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, face, level, z,
- PIPE_TRANSFER_READ, 0, 0,
- tc->texture->width[level],
- tc->texture->height[level]);
- tc->tex_trans_map = screen->transfer_map(screen, tc->tex_trans);
-
- tc->tex_face = face;
- tc->tex_level = level;
- tc->tex_z = z;
- }
-
- /* get tile from the transfer (view into texture) */
- pipe_get_tile_rgba(tc->tex_trans,
- tile_x, tile_y, TILE_SIZE, TILE_SIZE,
- (float *) tile->data.color);
- tile->x = tile_x;
- tile->y = tile_y;
- tile->z = z;
- tile->face = face;
- tile->level = level;
- }
-
- return tile;
-}
/**
for (pos = 0; pos < NUM_ENTRIES; pos++) {
struct softpipe_cached_tile *tile = tc->entries + pos;
- tile->x = tile->y = -1;
+ tile->addr.bits.invalid = 1;
}
}
projects / mesa.git / blobdiff