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-rw-r--r--src/gallium/drivers/llvmpipe/lp_tile_cache.c356
1 files changed, 0 insertions, 356 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_tile_cache.c b/src/gallium/drivers/llvmpipe/lp_tile_cache.c
deleted file mode 100644
index 196826870d..0000000000
--- a/src/gallium/drivers/llvmpipe/lp_tile_cache.c
+++ /dev/null
@@ -1,356 +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.
- *
- **************************************************************************/
-
-/**
- * Texture tile caching.
- *
- * Author:
- * Brian Paul
- */
-
-#include "util/u_inlines.h"
-#include "util/u_memory.h"
-#include "util/u_math.h"
-#include "util/u_tile.h"
-#include "util/u_rect.h"
-#include "lp_context.h"
-#include "lp_tile_soa.h"
-#include "lp_tile_cache.h"
-
-
-#define MAX_WIDTH 4096
-#define MAX_HEIGHT 4096
-
-
-enum llvmpipe_tile_status
-{
- LP_TILE_STATUS_UNDEFINED = 0,
- LP_TILE_STATUS_CLEAR = 1,
- LP_TILE_STATUS_DEFINED = 2
-};
-
-
-struct llvmpipe_cached_tile
-{
- enum llvmpipe_tile_status status;
-
- /** color in SOA format */
- uint8_t *color;
-};
-
-
-struct llvmpipe_tile_cache
-{
- struct pipe_screen *screen;
- struct pipe_surface *surface; /**< the surface we're caching */
- struct pipe_transfer *transfer;
- void *transfer_map;
-
- struct llvmpipe_cached_tile entries[MAX_WIDTH/TILE_SIZE][MAX_HEIGHT/TILE_SIZE];
-
- uint8_t clear_color[4]; /**< for color bufs */
- uint clear_val; /**< for z+stencil, or packed color clear value */
-
- struct llvmpipe_cached_tile *last_tile; /**< most recently retrieved tile */
-};
-
-
-struct llvmpipe_tile_cache *
-lp_create_tile_cache( struct pipe_screen *screen )
-{
- struct llvmpipe_tile_cache *tc;
- 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( llvmpipe_tile_cache );
- if(!tc)
- return NULL;
-
- tc->screen = screen;
-
- return tc;
-}
-
-
-void
-lp_destroy_tile_cache(struct llvmpipe_tile_cache *tc)
-{
- struct pipe_screen *screen;
- unsigned x, y;
-
- for (y = 0; y < MAX_HEIGHT; y += TILE_SIZE) {
- for (x = 0; x < MAX_WIDTH; x += TILE_SIZE) {
- struct llvmpipe_cached_tile *tile = &tc->entries[y/TILE_SIZE][x/TILE_SIZE];
-
- if(tile->color)
- align_free(tile->color);
- }
- }
-
- if (tc->transfer) {
- screen = tc->transfer->texture->screen;
- screen->tex_transfer_destroy(tc->transfer);
- }
-
- FREE( tc );
-}
-
-
-/**
- * Specify the surface to cache.
- */
-void
-lp_tile_cache_set_surface(struct llvmpipe_tile_cache *tc,
- struct pipe_surface *ps)
-{
- if (tc->transfer) {
- struct pipe_screen *screen = tc->transfer->texture->screen;
-
- if (ps == tc->surface)
- return;
-
- if (tc->transfer_map) {
- screen->transfer_unmap(screen, tc->transfer);
- tc->transfer_map = NULL;
- }
-
- screen->tex_transfer_destroy(tc->transfer);
- tc->transfer = NULL;
- }
-
- tc->surface = ps;
-
- if (ps) {
- struct pipe_screen *screen = ps->texture->screen;
- unsigned x, y;
-
- tc->transfer = screen->get_tex_transfer(screen, ps->texture, ps->face,
- ps->level, ps->zslice,
- PIPE_TRANSFER_READ_WRITE,
- 0, 0, ps->width, ps->height);
-
- for (y = 0; y < ps->height; y += TILE_SIZE) {
- for (x = 0; x < ps->width; x += TILE_SIZE) {
- struct llvmpipe_cached_tile *tile = &tc->entries[y/TILE_SIZE][x/TILE_SIZE];
-
- tile->status = LP_TILE_STATUS_UNDEFINED;
-
- if(!tile->color)
- tile->color = align_malloc( TILE_SIZE*TILE_SIZE*NUM_CHANNELS, 16 );
- }
- }
- }
-}
-
-
-/**
- * Return the transfer being cached.
- */
-struct pipe_surface *
-lp_tile_cache_get_surface(struct llvmpipe_tile_cache *tc)
-{
- return tc->surface;
-}
-
-
-void
-lp_tile_cache_map_transfers(struct llvmpipe_tile_cache *tc)
-{
- if (tc->transfer && !tc->transfer_map)
- tc->transfer_map = tc->screen->transfer_map(tc->screen, tc->transfer);
-}
-
-
-void
-lp_tile_cache_unmap_transfers(struct llvmpipe_tile_cache *tc)
-{
- if (tc->transfer_map) {
- tc->screen->transfer_unmap(tc->screen, tc->transfer);
- tc->transfer_map = NULL;
- }
-}
-
-
-/**
- * Set a tile to a solid color.
- */
-static void
-clear_tile(struct llvmpipe_cached_tile *tile,
- uint8_t clear_color[4])
-{
- if (clear_color[0] == clear_color[1] &&
- clear_color[1] == clear_color[2] &&
- clear_color[2] == clear_color[3]) {
- memset(tile->color, clear_color[0], TILE_SIZE * TILE_SIZE * 4);
- }
- else {
- uint 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(tile->color, x, y, chan) = clear_color[chan];
- }
-}
-
-
-/**
- * Flush the tile cache: write all dirty tiles back to the transfer.
- * any tiles "flagged" as cleared will be "really" cleared.
- */
-void
-lp_flush_tile_cache(struct llvmpipe_tile_cache *tc)
-{
- struct pipe_transfer *pt = tc->transfer;
- unsigned x, y;
-
- if(!pt)
- return;
-
- assert(tc->transfer_map);
-
- /* push the tile to all positions marked as clear */
- for (y = 0; y < pt->height; y += TILE_SIZE) {
- for (x = 0; x < pt->width; x += TILE_SIZE) {
- struct llvmpipe_cached_tile *tile = &tc->entries[y/TILE_SIZE][x/TILE_SIZE];
-
- if(tile->status != LP_TILE_STATUS_UNDEFINED) {
- unsigned w = TILE_SIZE;
- unsigned h = TILE_SIZE;
-
- if (!pipe_clip_tile(x, y, &w, &h, pt)) {
- switch(tile->status) {
- case LP_TILE_STATUS_CLEAR:
- /* Actually clear the tiles which were flagged as being in a
- * clear state. */
- util_fill_rect(tc->transfer_map, pt->texture->format, pt->stride,
- x, y, w, h,
- tc->clear_val);
- break;
-
- case LP_TILE_STATUS_DEFINED:
- lp_tile_write_4ub(pt->texture->format,
- tile->color,
- tc->transfer_map, pt->stride,
- x, y, w, h);
- break;
-
- default:
- assert(0);
- break;
- }
- }
-
- tile->status = LP_TILE_STATUS_UNDEFINED;
- }
- }
- }
-}
-
-
-/**
- * Get a tile from the cache.
- * \param x, y position of tile, in pixels
- */
-void *
-lp_get_cached_tile(struct llvmpipe_tile_cache *tc,
- unsigned x, unsigned y )
-{
- struct llvmpipe_cached_tile *tile = &tc->entries[y/TILE_SIZE][x/TILE_SIZE];
- struct pipe_transfer *pt = tc->transfer;
-
- assert(tc->surface);
- assert(tc->transfer);
-
- if(!tc->transfer_map)
- lp_tile_cache_map_transfers(tc);
-
- assert(tc->transfer_map);
-
- switch(tile->status) {
- case LP_TILE_STATUS_CLEAR:
- /* don't get tile from framebuffer, just clear it */
- clear_tile(tile, tc->clear_color);
- tile->status = LP_TILE_STATUS_DEFINED;
- break;
-
- case LP_TILE_STATUS_UNDEFINED: {
- unsigned w = TILE_SIZE;
- unsigned h = TILE_SIZE;
-
- x &= ~(TILE_SIZE - 1);
- y &= ~(TILE_SIZE - 1);
-
- if (!pipe_clip_tile(x, y, &w, &h, tc->transfer))
- lp_tile_read_4ub(pt->texture->format,
- tile->color,
- tc->transfer_map, tc->transfer->stride,
- x, y, w, h);
-
- tile->status = LP_TILE_STATUS_DEFINED;
- break;
- }
-
- case LP_TILE_STATUS_DEFINED:
- /* nothing to do */
- break;
- }
-
- return tile->color;
-}
-
-
-/**
- * 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
-lp_tile_cache_clear(struct llvmpipe_tile_cache *tc, const float *rgba,
- uint clearValue)
-{
- struct pipe_transfer *pt = tc->transfer;
- const unsigned w = pt->width;
- const unsigned h = pt->height;
- unsigned x, y, chan;
-
- for(chan = 0; chan < 4; ++chan)
- tc->clear_color[chan] = float_to_ubyte(rgba[chan]);
-
- tc->clear_val = clearValue;
-
- /* 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) {
- struct llvmpipe_cached_tile *tile = &tc->entries[y/TILE_SIZE][x/TILE_SIZE];
- tile->status = LP_TILE_STATUS_CLEAR;
- }
- }
-}
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