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-rw-r--r--src/mesa/pipe/softpipe/sp_tile_cache.c585
1 files changed, 0 insertions, 585 deletions
diff --git a/src/mesa/pipe/softpipe/sp_tile_cache.c b/src/mesa/pipe/softpipe/sp_tile_cache.c
deleted file mode 100644
index 1597361b82f..00000000000
--- a/src/mesa/pipe/softpipe/sp_tile_cache.c
+++ /dev/null
@@ -1,585 +0,0 @@
-/**************************************************************************
- *
- * 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.
- *
- **************************************************************************/
-
-/**
- * Framebuffer/surface tile caching.
- *
- * Author:
- * Brian Paul
- */
-
-#include "pipe/p_util.h"
-#include "pipe/p_inlines.h"
-#include "pipe/util/p_tile.h"
-#include "sp_context.h"
-#include "sp_surface.h"
-#include "sp_tile_cache.h"
-
-#define NUM_ENTRIES 30
-
-
-/** XXX move these */
-#define MAX_WIDTH 2048
-#define MAX_HEIGHT 2048
-
-
-struct softpipe_tile_cache
-{
- struct pipe_surface *surface; /**< the surface we're caching */
- void *surface_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];
- uint clear_val;
- boolean depth_stencil; /** Is the surface a depth/stencil format? */
-
- struct pipe_surface *tex_surf;
- void *tex_surf_map;
- int tex_face, tex_level, tex_z;
-
- struct softpipe_cached_tile tile; /**< scratch tile for clears */
-};
-
-
-/**
- * Return the position in the cache for the tile that contains win pos (x,y).
- * We currently use a direct mapped cache so this is like a hack key.
- * At some point we should investige something more sophisticated, like
- * a LRU replacement policy.
- */
-#define CACHE_POS(x, y) \
- (((x) / TILE_SIZE + ((y) / TILE_SIZE) * 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)
-{
- int pos, bit;
- x /= TILE_SIZE;
- y /= TILE_SIZE;
- pos = y * (MAX_WIDTH / TILE_SIZE) + 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)
-{
- int pos;
- x /= TILE_SIZE;
- y /= TILE_SIZE;
- pos = y * (MAX_WIDTH / TILE_SIZE) + x;
- assert(pos / 32 < (MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32);
- bitvec[pos / 32] &= ~(1 << (pos & 31));
-}
-
-
-struct softpipe_tile_cache *
-sp_create_tile_cache(void)
-{
- struct softpipe_tile_cache *tc;
- uint pos;
-
- tc = CALLOC_STRUCT( softpipe_tile_cache );
- if (tc) {
- for (pos = 0; pos < NUM_ENTRIES; pos++) {
- tc->entries[pos].x =
- tc->entries[pos].y = -1;
- }
- }
- return tc;
-}
-
-
-void
-sp_destroy_tile_cache(struct softpipe_tile_cache *tc)
-{
- uint pos;
-
- for (pos = 0; pos < NUM_ENTRIES; pos++) {
- //assert(tc->entries[pos].x < 0);
- }
- if (tc->surface) {
- pipe_surface_reference(&tc->surface, NULL);
- }
- if (tc->tex_surf) {
- pipe_surface_reference(&tc->tex_surf, NULL);
- }
-
- FREE( tc );
-}
-
-
-/**
- * Specify the surface to cache.
- */
-void
-sp_tile_cache_set_surface(struct softpipe_tile_cache *tc,
- struct pipe_surface *ps)
-{
- assert(!tc->texture);
-
- if (tc->surface_map) {
- /*assert(tc->surface != ps);*/
- pipe_surface_unmap(tc->surface);
- }
-
- pipe_surface_reference(&tc->surface, ps);
-
- if (ps) {
- if (tc->surface_map)
- tc->surface_map = pipe_surface_map(ps);
-
- tc->depth_stencil = (ps->format == PIPE_FORMAT_S8Z24_UNORM ||
- ps->format == PIPE_FORMAT_Z16_UNORM ||
- ps->format == PIPE_FORMAT_Z32_UNORM ||
- ps->format == PIPE_FORMAT_U_S8);
- }
-}
-
-
-/**
- * Return the surface being cached.
- */
-struct pipe_surface *
-sp_tile_cache_get_surface(struct softpipe_tile_cache *tc)
-{
- return tc->surface;
-}
-
-
-void
-sp_tile_cache_map_surfaces(struct softpipe_tile_cache *tc)
-{
- if (tc->surface && !tc->surface_map)
- tc->surface_map = pipe_surface_map(tc->surface);
-
- if (tc->tex_surf && !tc->tex_surf_map)
- tc->tex_surf_map = pipe_surface_map(tc->tex_surf);
-}
-
-
-void
-sp_tile_cache_unmap_surfaces(struct softpipe_tile_cache *tc)
-{
- if (tc->surface_map) {
- pipe_surface_unmap(tc->surface);
- tc->surface_map = NULL;
- }
-
- if (tc->tex_surf_map) {
- pipe_surface_unmap(tc->tex_surf);
- tc->tex_surf_map = NULL;
- }
-}
-
-
-/**
- * Specify the texture to cache.
- */
-void
-sp_tile_cache_set_texture(struct softpipe_tile_cache *tc,
- struct pipe_texture *texture)
-{
- uint i;
-
- assert(!tc->surface);
-
- tc->texture = texture;
-
- if (tc->tex_surf_map) {
- pipe_surface_unmap(tc->tex_surf);
- tc->tex_surf_map = NULL;
- }
- pipe_surface_reference(&tc->tex_surf, 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 */
-}
-
-
-/**
- * Set pixels in a tile to the given clear color/value, float.
- */
-static void
-clear_tile_rgba(struct softpipe_cached_tile *tile,
- enum pipe_format format,
- const float clear_value[4])
-{
- if (clear_value[0] == 0.0 &&
- clear_value[1] == 0.0 &&
- clear_value[2] == 0.0 &&
- clear_value[3] == 0.0) {
- memset(tile->data.color, 0, sizeof(tile->data.color));
- }
- else {
- uint i, j;
- for (i = 0; i < TILE_SIZE; i++) {
- for (j = 0; j < TILE_SIZE; j++) {
- tile->data.color[i][j][0] = clear_value[0];
- tile->data.color[i][j][1] = clear_value[1];
- tile->data.color[i][j][2] = clear_value[2];
- tile->data.color[i][j][3] = clear_value[3];
- }
- }
- }
-}
-
-
-/**
- * Set a tile to a solid value/color.
- */
-static void
-clear_tile(struct softpipe_cached_tile *tile,
- enum pipe_format format,
- uint clear_value)
-{
- uint i, j;
-
- switch (pf_get_size(format)) {
- case 1:
- memset(tile->data.any, 0, TILE_SIZE * TILE_SIZE);
- break;
- case 2:
- if (clear_value == 0) {
- memset(tile->data.any, 0, 2 * TILE_SIZE * TILE_SIZE);
- }
- else {
- for (i = 0; i < TILE_SIZE; i++) {
- for (j = 0; j < TILE_SIZE; j++) {
- tile->data.depth16[i][j] = (ushort) clear_value;
- }
- }
- }
- break;
- case 4:
- if (clear_value == 0) {
- memset(tile->data.any, 0, 4 * TILE_SIZE * TILE_SIZE);
- }
- else {
- for (i = 0; i < TILE_SIZE; i++) {
- for (j = 0; j < TILE_SIZE; j++) {
- tile->data.color32[i][j] = clear_value;
- }
- }
- }
- break;
- default:
- assert(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)
-{
- struct pipe_surface *ps = tc->surface;
- const uint w = tc->surface->width;
- const uint h = tc->surface->height;
- uint x, y;
- uint numCleared = 0;
-
- /* clear the scratch tile to the clear value */
- clear_tile(&tc->tile, ps->format, tc->clear_val);
-
- /* 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)) {
- pipe_put_tile_raw(pipe, ps,
- x, y, TILE_SIZE, TILE_SIZE,
- tc->tile.data.color32, 0/*STRIDE*/);
-
- /* do this? */
- clear_clear_flag(tc->clear_flags, x, y);
-
- numCleared++;
- }
- }
- }
-#if 0
- debug_printf("num cleared: %u\n", numCleared);
-#endif
-}
-
-
-/**
- * Flush the tile cache: write all dirty tiles back to the surface.
- * any tiles "flagged" as cleared will be "really" cleared.
- */
-void
-sp_flush_tile_cache(struct softpipe_context *softpipe,
- struct softpipe_tile_cache *tc)
-{
- struct pipe_context *pipe = &softpipe->pipe;
- struct pipe_surface *ps = tc->surface;
- int inuse = 0, pos;
-
- if (!ps || !ps->buffer)
- return;
-
- for (pos = 0; pos < NUM_ENTRIES; pos++) {
- struct softpipe_cached_tile *tile = tc->entries + pos;
- if (tile->x >= 0) {
- if (tc->depth_stencil) {
- pipe_put_tile_raw(pipe, ps,
- tile->x, tile->y, TILE_SIZE, TILE_SIZE,
- tile->data.depth32, 0/*STRIDE*/);
- }
- else {
- pipe_put_tile_rgba(pipe, ps,
- tile->x, tile->y, TILE_SIZE, TILE_SIZE,
- (float *) tile->data.color);
- }
- tile->x = tile->y = -1; /* mark as empty */
- inuse++;
- }
- }
-
-#if TILE_CLEAR_OPTIMIZATION
- sp_tile_cache_flush_clear(&softpipe->pipe, tc);
-#endif
-
-#if 0
- debug_printf("flushed tiles in use: %d\n", inuse);
-#endif
-}
-
-
-/**
- * Get a tile from the cache.
- * \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)
-{
- struct pipe_context *pipe = &softpipe->pipe;
- struct pipe_surface *ps = tc->surface;
-
- /* 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);
- struct softpipe_cached_tile *tile = tc->entries + pos;
-
- if (tile_x != tile->x ||
- tile_y != tile->y) {
-
- if (tile->x != -1) {
- /* put dirty tile back in framebuffer */
- if (tc->depth_stencil) {
- pipe_put_tile_raw(pipe, ps,
- tile->x, tile->y, TILE_SIZE, TILE_SIZE,
- tile->data.depth32, 0/*STRIDE*/);
- }
- else {
- pipe_put_tile_rgba(pipe, ps,
- tile->x, tile->y, TILE_SIZE, TILE_SIZE,
- (float *) tile->data.color);
- }
- }
-
- tile->x = tile_x;
- tile->y = tile_y;
-
- if (is_clear_flag_set(tc->clear_flags, x, y)) {
- /* don't get tile from framebuffer, just clear it */
- if (tc->depth_stencil) {
- clear_tile(tile, ps->format, tc->clear_val);
- }
- else {
- clear_tile_rgba(tile, ps->format, tc->clear_color);
- }
- clear_clear_flag(tc->clear_flags, x, y);
- }
- else {
- /* get new tile data from surface */
- if (tc->depth_stencil) {
- pipe_get_tile_raw(pipe, ps,
- tile->x, tile->y, TILE_SIZE, TILE_SIZE,
- tile->data.depth32, 0/*STRIDE*/);
- }
- else {
- pipe_get_tile_rgba(pipe, ps,
- tile->x, tile->y, TILE_SIZE, TILE_SIZE,
- (float *) tile->data.color);
- }
- }
- }
-
- 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 * 5 + z * 4 + face + level;
- 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 pipe_context *pipe,
- struct softpipe_tile_cache *tc, int x, int y, int z,
- int face, int level)
-{
- /* 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 (tile_x != tile->x ||
- tile_y != tile->y ||
- z != tile->z ||
- face != tile->face ||
- level != tile->level) {
- /* cache miss */
-
- /* check if we need to get a new surface */
- if (!tc->tex_surf ||
- tc->tex_face != face ||
- tc->tex_level != level ||
- tc->tex_z != z) {
- /* get new surface (view into texture) */
-
- if (tc->tex_surf_map)
- pipe_surface_unmap(tc->tex_surf);
-
- tc->tex_surf = pipe->get_tex_surface(pipe, tc->texture, face, level, z);
- tc->tex_surf_map = pipe_surface_map(tc->tex_surf);
-
- tc->tex_face = face;
- tc->tex_level = level;
- tc->tex_z = z;
- }
-
- /* get tile from the surface (view into texture) */
- pipe_get_tile_rgba(pipe, tc->tex_surf,
- 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;
-}
-
-
-/**
- * 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, uint clearValue)
-{
- uint r, g, b, a;
- uint pos;
-
- tc->clear_val = clearValue;
-
- switch (tc->surface->format) {
- case PIPE_FORMAT_R8G8B8A8_UNORM:
- r = (clearValue >> 24) & 0xff;
- g = (clearValue >> 16) & 0xff;
- b = (clearValue >> 8) & 0xff;
- a = (clearValue ) & 0xff;
- break;
- case PIPE_FORMAT_A8R8G8B8_UNORM:
- r = (clearValue >> 16) & 0xff;
- g = (clearValue >> 8) & 0xff;
- b = (clearValue ) & 0xff;
- a = (clearValue >> 24) & 0xff;
- break;
- case PIPE_FORMAT_B8G8R8A8_UNORM:
- r = (clearValue >> 8) & 0xff;
- g = (clearValue >> 16) & 0xff;
- b = (clearValue >> 24) & 0xff;
- a = (clearValue ) & 0xff;
- break;
- default:
- r = g = b = a = 0;
- }
-
- tc->clear_color[0] = r / 255.0f;
- tc->clear_color[1] = g / 255.0f;
- tc->clear_color[2] = b / 255.0f;
- tc->clear_color[3] = a / 255.0f;
-
-#if TILE_CLEAR_OPTIMIZATION
- /* set flags to indicate all the tiles are cleared */
- memset(tc->clear_flags, 255, sizeof(tc->clear_flags));
-#else
- /* disable the optimization */
- memset(tc->clear_flags, 0, sizeof(tc->clear_flags));
-#endif
-
- for (pos = 0; pos < NUM_ENTRIES; pos++) {
- struct softpipe_cached_tile *tile = tc->entries + pos;
- tile->x = tile->y = -1;
- }
-}
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