c97d4533f2
those xcalloc/xfree/xalloc/XNFprintf/... are deprecated. Replace then with the new one. And fix some other minor problems.
880 lines
23 KiB
C
880 lines
23 KiB
C
/*
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* Copyright © 2008 Red Hat, Inc.
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* Partly based on code Copyright © 2000 SuSE, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Red Hat not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. Red Hat makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* Red Hat DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL Red Hat
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* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of SuSE not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. SuSE makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
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* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Owen Taylor <otaylor@fishsoup.net>
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* Based on code by: Keith Packard
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <stdlib.h>
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#include "glamor_priv.h"
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#include "mipict.h"
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#if DEBUG_GLYPH_CACHE
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#define DBG_GLYPH_CACHE(a) ErrorF a
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#else
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#define DBG_GLYPH_CACHE(a)
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#endif
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/* Width of the pixmaps we use for the caches; this should be less than
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* max texture size of the driver; this may need to actually come from
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* the driver.
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*/
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#define CACHE_PICTURE_WIDTH 1024
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/* Maximum number of glyphs we buffer on the stack before flushing
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* rendering to the mask or destination surface.
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*/
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#define GLYPH_BUFFER_SIZE 256
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typedef struct {
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PicturePtr source;
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glamor_composite_rect_t rects[GLYPH_BUFFER_SIZE];
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int count;
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} glamor_glyph_buffer_t;
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typedef enum {
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GLAMOR_GLYPH_SUCCESS, /* Glyph added to render buffer */
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GLAMOR_GLYPH_FAIL, /* out of memory, etc */
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GLAMOR_GLYPH_NEED_FLUSH, /* would evict a glyph already in the buffer */
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} glamor_glyph_cache_result_t;
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void glamor_glyphs_init(ScreenPtr screen)
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{
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glamor_screen_private *glamor_screen = glamor_get_screen_private(screen);
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int i = 0;
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memset(glamor_screen->glyph_caches, 0, sizeof(glamor_screen->glyph_caches));
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glamor_screen->glyph_caches[i].format = PICT_a8;
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glamor_screen->glyph_caches[i].glyph_width =
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glamor_screen->glyph_caches[i].glyph_height = 16;
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i++;
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glamor_screen->glyph_caches[i].format = PICT_a8;
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glamor_screen->glyph_caches[i].glyph_width =
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glamor_screen->glyph_caches[i].glyph_height = 32;
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i++;
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glamor_screen->glyph_caches[i].format = PICT_a8r8g8b8;
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glamor_screen->glyph_caches[i].glyph_width =
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glamor_screen->glyph_caches[i].glyph_height = 16;
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i++;
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glamor_screen->glyph_caches[i].format = PICT_a8r8g8b8;
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glamor_screen->glyph_caches[i].glyph_width =
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glamor_screen->glyph_caches[i].glyph_height = 32;
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i++;
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assert(i == GLAMOR_NUM_GLYPH_CACHES);
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for (i = 0; i < GLAMOR_NUM_GLYPH_CACHES; i++) {
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glamor_screen->glyph_caches[i].columns =
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CACHE_PICTURE_WIDTH / glamor_screen->glyph_caches[i].glyph_width;
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glamor_screen->glyph_caches[i].size = 256;
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glamor_screen->glyph_caches[i].hash_size = 557;
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}
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}
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static void glamor_unrealize_glyph_caches(ScreenPtr screen, unsigned int format)
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{
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glamor_screen_private *glamor_screen = glamor_get_screen_private(screen);
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int i;
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for (i = 0; i < GLAMOR_NUM_GLYPH_CACHES; i++) {
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glamor_glyph_cache_t *cache = &glamor_screen->glyph_caches[i];
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if (cache->format != format)
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continue;
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if (cache->picture) {
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FreePicture((pointer) cache->picture, (XID) 0);
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cache->picture = NULL;
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}
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if (cache->hash_entries) {
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free(cache->hash_entries);
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cache->hash_entries = NULL;
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}
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if (cache->glyphs) {
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free(cache->glyphs);
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cache->glyphs = NULL;
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}
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cache->glyph_count = 0;
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}
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}
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#define NeedsComponent(f) (PICT_FORMAT_A(f) != 0 && PICT_FORMAT_RGB(f) != 0)
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/* All caches for a single format share a single pixmap for glyph storage,
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* allowing mixing glyphs of different sizes without paying a penalty
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* for switching between source pixmaps. (Note that for a size of font
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* right at the border between two sizes, we might be switching for almost
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* every glyph.)
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*
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* This function allocates the storage pixmap, and then fills in the
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* rest of the allocated structures for all caches with the given format.
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*/
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static Bool glamor_realize_glyph_caches(ScreenPtr screen, unsigned int format)
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{
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glamor_screen_private *glamor_screen = glamor_get_screen_private(screen);
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int depth = PIXMAN_FORMAT_DEPTH(format);
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PictFormatPtr pict_format;
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PixmapPtr pixmap;
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PicturePtr picture;
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CARD32 component_alpha;
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int height;
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int i;
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int error;
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pict_format = PictureMatchFormat(screen, depth, format);
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if (!pict_format)
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return FALSE;
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/* Compute the total vertical size needed for the format */
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height = 0;
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for (i = 0; i < GLAMOR_NUM_GLYPH_CACHES; i++) {
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glamor_glyph_cache_t *cache = &glamor_screen->glyph_caches[i];
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int rows;
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if (cache->format != format)
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continue;
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cache->y_offset = height;
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rows = (cache->size + cache->columns - 1) / cache->columns;
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height += rows * cache->glyph_height;
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}
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/* Now allocate the pixmap and picture */
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pixmap = screen->CreatePixmap(screen,
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CACHE_PICTURE_WIDTH,
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height, depth,
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0);
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if (!pixmap)
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return FALSE;
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component_alpha = NeedsComponent(pict_format->format);
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picture = CreatePicture(0, &pixmap->drawable, pict_format,
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CPComponentAlpha, &component_alpha,
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serverClient, &error);
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screen->DestroyPixmap(pixmap); /* picture holds a refcount */
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if (!picture)
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return FALSE;
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/* And store the picture in all the caches for the format */
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for (i = 0; i < GLAMOR_NUM_GLYPH_CACHES; i++) {
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glamor_glyph_cache_t *cache = &glamor_screen->glyph_caches[i];
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int j;
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if (cache->format != format)
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continue;
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cache->picture = picture;
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cache->picture->refcnt++;
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cache->hash_entries = malloc(sizeof(int) * cache->hash_size);
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cache->glyphs =
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malloc(sizeof(glamor_cached_glyph_t) * cache->size);
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cache->glyph_count = 0;
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if (!cache->hash_entries || !cache->glyphs)
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goto bail;
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for (j = 0; j < cache->hash_size; j++)
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cache->hash_entries[j] = -1;
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cache->eviction_position = rand() % cache->size;
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}
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/* Each cache references the picture individually */
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FreePicture(picture, 0);
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return TRUE;
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bail:
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glamor_unrealize_glyph_caches(screen, format);
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return FALSE;
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}
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void glamor_glyphs_fini(ScreenPtr screen)
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{
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glamor_screen_private *glamor_screen = glamor_get_screen_private(screen);
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int i;
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for (i = 0; i < GLAMOR_NUM_GLYPH_CACHES; i++) {
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glamor_glyph_cache_t *cache = &glamor_screen->glyph_caches[i];
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if (cache->picture)
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glamor_unrealize_glyph_caches(screen, cache->format);
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}
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}
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static int
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glamor_glyph_cache_hash_lookup(glamor_glyph_cache_t * cache, GlyphPtr glyph)
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{
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int slot;
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slot = (*(CARD32 *) glyph->sha1) % cache->hash_size;
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while (TRUE) { /* hash table can never be full */
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int entryPos = cache->hash_entries[slot];
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if (entryPos == -1)
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return -1;
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if (memcmp(glyph->sha1, cache->glyphs[entryPos].sha1,
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sizeof(glyph->sha1)) == 0) {
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return entryPos;
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}
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slot--;
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if (slot < 0)
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slot = cache->hash_size - 1;
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}
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}
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static void
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glamor_glyph_cache_hash_insert(glamor_glyph_cache_t * cache, GlyphPtr glyph, int pos)
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{
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int slot;
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memcpy(cache->glyphs[pos].sha1, glyph->sha1, sizeof(glyph->sha1));
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slot = (*(CARD32 *) glyph->sha1) % cache->hash_size;
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while (TRUE) { /* hash table can never be full */
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if (cache->hash_entries[slot] == -1) {
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cache->hash_entries[slot] = pos;
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return;
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}
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slot--;
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if (slot < 0)
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slot = cache->hash_size - 1;
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}
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}
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static void glamor_glyph_cache_hash_remove(glamor_glyph_cache_t * cache, int pos)
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{
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int slot;
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int emptied_slot = -1;
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slot = (*(CARD32 *) cache->glyphs[pos].sha1) % cache->hash_size;
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while (TRUE) { /* hash table can never be full */
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int entryPos = cache->hash_entries[slot];
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if (entryPos == -1)
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return;
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if (entryPos == pos) {
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cache->hash_entries[slot] = -1;
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emptied_slot = slot;
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} else if (emptied_slot != -1) {
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/* See if we can move this entry into the emptied slot,
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* we can't do that if if entry would have hashed
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* between the current position and the emptied slot.
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* (taking wrapping into account). Bad positions
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* are:
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*
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* | XXXXXXXXXX |
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* i j
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*
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* |XXX XXXX|
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* j i
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*
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* i - slot, j - emptied_slot
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*
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* (Knuth 6.4R)
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*/
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int entry_slot = (*(CARD32 *) cache->glyphs[entryPos].sha1) %
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cache->hash_size;
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if (!((entry_slot >= slot && entry_slot < emptied_slot) ||
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(emptied_slot < slot
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&& (entry_slot < emptied_slot
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|| entry_slot >= slot)))) {
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cache->hash_entries[emptied_slot] = entryPos;
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cache->hash_entries[slot] = -1;
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emptied_slot = slot;
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}
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}
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slot--;
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if (slot < 0)
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slot = cache->hash_size - 1;
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}
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}
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#define CACHE_X(pos) (((pos) % cache->columns) * cache->glyph_width)
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#define CACHE_Y(pos) (cache->y_offset + ((pos) / cache->columns) * cache->glyph_height)
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/* The most efficient thing to way to upload the glyph to the screen
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* is to use CopyArea; glamor pixmaps are always offscreen.
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*/
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static Bool
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glamor_glyph_cache_upload_glyph(ScreenPtr screen,
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glamor_glyph_cache_t * cache,
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int pos, GlyphPtr glyph)
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{
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PicturePtr glyph_picture = GlyphPicture(glyph)[screen->myNum];
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PixmapPtr glyph_pixmap = (PixmapPtr) glyph_picture->pDrawable;
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PixmapPtr cache_pixmap = (PixmapPtr) cache->picture->pDrawable;
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PixmapPtr scratch;
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GCPtr gc;
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/* UploadToScreen only works if bpp match */
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if (glyph_pixmap->drawable.bitsPerPixel !=
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cache_pixmap->drawable.bitsPerPixel)
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return FALSE;
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gc = GetScratchGC(cache_pixmap->drawable.depth, screen);
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ValidateGC(&cache_pixmap->drawable, gc);
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/* Create a temporary bo to stream the updates to the cache */
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scratch = screen->CreatePixmap(screen,
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glyph->info.width,
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glyph->info.height,
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glyph_pixmap->drawable.depth,
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0);
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if (scratch) {
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(void)glamor_copy_area(&glyph_pixmap->drawable,
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&scratch->drawable,
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gc,
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0, 0,
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glyph->info.width, glyph->info.height,
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0, 0);
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} else {
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scratch = glyph_pixmap;
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}
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(void)glamor_copy_area(&scratch->drawable,
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&cache_pixmap->drawable,
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gc,
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0, 0, glyph->info.width, glyph->info.height,
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CACHE_X(pos), CACHE_Y(pos));
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if (scratch != glyph_pixmap)
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screen->DestroyPixmap(scratch);
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FreeScratchGC(gc);
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return TRUE;
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}
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static glamor_glyph_cache_result_t
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glamor_glyph_cache_buffer_glyph(ScreenPtr screen,
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glamor_glyph_cache_t * cache,
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glamor_glyph_buffer_t * buffer,
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GlyphPtr glyph, int x_glyph, int y_glyph)
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{
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glamor_composite_rect_t *rect;
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int pos;
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if (buffer->source && buffer->source != cache->picture)
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return GLAMOR_GLYPH_NEED_FLUSH;
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if (!cache->picture) {
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if (!glamor_realize_glyph_caches(screen, cache->format))
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return GLAMOR_GLYPH_FAIL;
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}
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DBG_GLYPH_CACHE(("(%d,%d,%s): buffering glyph %lx\n",
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cache->glyph_width, cache->glyph_height,
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cache->format == PICT_a8 ? "A" : "ARGB",
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(long)*(CARD32 *) glyph->sha1));
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pos = glamor_glyph_cache_hash_lookup(cache, glyph);
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if (pos != -1) {
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DBG_GLYPH_CACHE((" found existing glyph at %d\n", pos));
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} else {
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if (cache->glyph_count < cache->size) {
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/* Space remaining; we fill from the start */
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pos = cache->glyph_count;
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cache->glyph_count++;
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DBG_GLYPH_CACHE((" storing glyph in free space at %d\n", pos));
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glamor_glyph_cache_hash_insert(cache, glyph, pos);
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} else {
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/* Need to evict an entry. We have to see if any glyphs
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* already in the output buffer were at this position in
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* the cache
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*/
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pos = cache->eviction_position;
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DBG_GLYPH_CACHE((" evicting glyph at %d\n", pos));
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if (buffer->count) {
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int x, y;
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int i;
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x = CACHE_X(pos);
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y = CACHE_Y(pos);
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for (i = 0; i < buffer->count; i++) {
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if (buffer->rects[i].x_src == x
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&& buffer->rects[i].y_src == y) {
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DBG_GLYPH_CACHE((" must flush buffer\n"));
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return GLAMOR_GLYPH_NEED_FLUSH;
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}
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}
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}
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/* OK, we're all set, swap in the new glyph */
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glamor_glyph_cache_hash_remove(cache, pos);
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glamor_glyph_cache_hash_insert(cache, glyph, pos);
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/* And pick a new eviction position */
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cache->eviction_position = rand() % cache->size;
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}
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/* Now actually upload the glyph into the cache picture; if
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* we can't do it with UploadToScreen (because the glyph is
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* offscreen, etc), we fall back to CompositePicture.
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*/
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if (!glamor_glyph_cache_upload_glyph(screen, cache, pos, glyph)) {
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CompositePicture(PictOpSrc,
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GlyphPicture(glyph)[screen->myNum],
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None,
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cache->picture,
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0, 0,
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0, 0,
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CACHE_X(pos),
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CACHE_Y(pos),
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glyph->info.width,
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glyph->info.height);
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}
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}
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buffer->source = cache->picture;
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rect = &buffer->rects[buffer->count];
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rect->x_src = CACHE_X(pos);
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rect->y_src = CACHE_Y(pos);
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rect->x_dst = x_glyph - glyph->info.x;
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rect->y_dst = y_glyph - glyph->info.y;
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rect->width = glyph->info.width;
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rect->height = glyph->info.height;
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buffer->count++;
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return GLAMOR_GLYPH_SUCCESS;
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}
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#undef CACHE_X
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#undef CACHE_Y
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static glamor_glyph_cache_result_t
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glamor_buffer_glyph(ScreenPtr screen,
|
|
glamor_glyph_buffer_t *buffer,
|
|
GlyphPtr glyph, int x_glyph, int y_glyph)
|
|
{
|
|
glamor_screen_private *glamor_screen = glamor_get_screen_private(screen);
|
|
unsigned int format = (GlyphPicture(glyph)[screen->myNum])->format;
|
|
int width = glyph->info.width;
|
|
int height = glyph->info.height;
|
|
glamor_composite_rect_t *rect;
|
|
PicturePtr source;
|
|
int i;
|
|
|
|
if (buffer->count == GLYPH_BUFFER_SIZE)
|
|
return GLAMOR_GLYPH_NEED_FLUSH;
|
|
|
|
if (PICT_FORMAT_BPP(format) == 1)
|
|
format = PICT_a8;
|
|
|
|
for (i = 0; i < GLAMOR_NUM_GLYPH_CACHES; i++) {
|
|
glamor_glyph_cache_t *cache = &glamor_screen->glyph_caches[i];
|
|
|
|
if (format == cache->format &&
|
|
width <= cache->glyph_width &&
|
|
height <= cache->glyph_height) {
|
|
glamor_glyph_cache_result_t result =
|
|
glamor_glyph_cache_buffer_glyph(screen,
|
|
&glamor_screen->glyph_caches[i],
|
|
buffer,
|
|
glyph, x_glyph,
|
|
y_glyph);
|
|
switch (result) {
|
|
case GLAMOR_GLYPH_FAIL:
|
|
break;
|
|
case GLAMOR_GLYPH_SUCCESS:
|
|
case GLAMOR_GLYPH_NEED_FLUSH:
|
|
return result;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Couldn't find the glyph in the cache, use the glyph picture directly */
|
|
|
|
source = GlyphPicture(glyph)[screen->myNum];
|
|
if (buffer->source && buffer->source != source)
|
|
return GLAMOR_GLYPH_NEED_FLUSH;
|
|
|
|
buffer->source = source;
|
|
|
|
rect = &buffer->rects[buffer->count];
|
|
rect->x_src = 0;
|
|
rect->y_src = 0;
|
|
rect->x_dst = x_glyph - glyph->info.x;
|
|
rect->y_dst = y_glyph - glyph->info.y;
|
|
rect->width = glyph->info.width;
|
|
rect->height = glyph->info.height;
|
|
|
|
buffer->count++;
|
|
|
|
return GLAMOR_GLYPH_SUCCESS;
|
|
}
|
|
|
|
static void glamor_glyphs_to_mask(PicturePtr mask,
|
|
glamor_glyph_buffer_t *buffer)
|
|
{
|
|
#ifdef RENDER
|
|
glamor_composite_rects(PictOpAdd, buffer->source, mask,
|
|
buffer->count, buffer->rects);
|
|
#endif
|
|
|
|
buffer->count = 0;
|
|
buffer->source = NULL;
|
|
}
|
|
|
|
static void
|
|
glamor_glyphs_to_dst(CARD8 op,
|
|
PicturePtr src,
|
|
PicturePtr dst,
|
|
glamor_glyph_buffer_t *buffer,
|
|
INT16 x_src, INT16 y_src, INT16 x_dst, INT16 y_dst)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < buffer->count; i++) {
|
|
glamor_composite_rect_t *rect = &buffer->rects[i];
|
|
|
|
CompositePicture(op,
|
|
src,
|
|
buffer->source,
|
|
dst,
|
|
x_src + rect->x_dst - x_dst,
|
|
y_src + rect->y_dst - y_dst,
|
|
rect->x_src,
|
|
rect->y_src,
|
|
rect->x_dst,
|
|
rect->y_dst, rect->width, rect->height);
|
|
}
|
|
|
|
buffer->count = 0;
|
|
buffer->source = NULL;
|
|
}
|
|
|
|
/* Cut and paste from render/glyph.c - probably should export it instead */
|
|
static void
|
|
glamor_glyph_extents(int nlist,
|
|
GlyphListPtr list, GlyphPtr *glyphs, BoxPtr extents)
|
|
{
|
|
int x1, x2, y1, y2;
|
|
int n;
|
|
GlyphPtr glyph;
|
|
int x, y;
|
|
|
|
x = 0;
|
|
y = 0;
|
|
extents->x1 = MAXSHORT;
|
|
extents->x2 = MINSHORT;
|
|
extents->y1 = MAXSHORT;
|
|
extents->y2 = MINSHORT;
|
|
while (nlist--) {
|
|
x += list->xOff;
|
|
y += list->yOff;
|
|
n = list->len;
|
|
list++;
|
|
while (n--) {
|
|
glyph = *glyphs++;
|
|
x1 = x - glyph->info.x;
|
|
if (x1 < MINSHORT)
|
|
x1 = MINSHORT;
|
|
y1 = y - glyph->info.y;
|
|
if (y1 < MINSHORT)
|
|
y1 = MINSHORT;
|
|
x2 = x1 + glyph->info.width;
|
|
if (x2 > MAXSHORT)
|
|
x2 = MAXSHORT;
|
|
y2 = y1 + glyph->info.height;
|
|
if (y2 > MAXSHORT)
|
|
y2 = MAXSHORT;
|
|
if (x1 < extents->x1)
|
|
extents->x1 = x1;
|
|
if (x2 > extents->x2)
|
|
extents->x2 = x2;
|
|
if (y1 < extents->y1)
|
|
extents->y1 = y1;
|
|
if (y2 > extents->y2)
|
|
extents->y2 = y2;
|
|
x += glyph->info.xOff;
|
|
y += glyph->info.yOff;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns TRUE if the glyphs in the lists intersect. Only checks based on
|
|
* bounding box, which appears to be good enough to catch most cases at least.
|
|
*/
|
|
static Bool
|
|
glamor_glyphs_intersect(int nlist, GlyphListPtr list, GlyphPtr *glyphs)
|
|
{
|
|
int x1, x2, y1, y2;
|
|
int n;
|
|
GlyphPtr glyph;
|
|
int x, y;
|
|
BoxRec extents;
|
|
Bool first = TRUE;
|
|
|
|
x = 0;
|
|
y = 0;
|
|
extents.x1 = 0;
|
|
extents.y1 = 0;
|
|
extents.x2 = 0;
|
|
extents.y2 = 0;
|
|
while (nlist--) {
|
|
x += list->xOff;
|
|
y += list->yOff;
|
|
n = list->len;
|
|
list++;
|
|
while (n--) {
|
|
glyph = *glyphs++;
|
|
|
|
if (glyph->info.width == 0 || glyph->info.height == 0) {
|
|
x += glyph->info.xOff;
|
|
y += glyph->info.yOff;
|
|
continue;
|
|
}
|
|
|
|
x1 = x - glyph->info.x;
|
|
if (x1 < MINSHORT)
|
|
x1 = MINSHORT;
|
|
y1 = y - glyph->info.y;
|
|
if (y1 < MINSHORT)
|
|
y1 = MINSHORT;
|
|
x2 = x1 + glyph->info.width;
|
|
if (x2 > MAXSHORT)
|
|
x2 = MAXSHORT;
|
|
y2 = y1 + glyph->info.height;
|
|
if (y2 > MAXSHORT)
|
|
y2 = MAXSHORT;
|
|
|
|
if (first) {
|
|
extents.x1 = x1;
|
|
extents.y1 = y1;
|
|
extents.x2 = x2;
|
|
extents.y2 = y2;
|
|
first = FALSE;
|
|
} else {
|
|
if (x1 < extents.x2 && x2 > extents.x1 &&
|
|
y1 < extents.y2 && y2 > extents.y1) {
|
|
return TRUE;
|
|
}
|
|
|
|
if (x1 < extents.x1)
|
|
extents.x1 = x1;
|
|
if (x2 > extents.x2)
|
|
extents.x2 = x2;
|
|
if (y1 < extents.y1)
|
|
extents.y1 = y1;
|
|
if (y2 > extents.y2)
|
|
extents.y2 = y2;
|
|
}
|
|
x += glyph->info.xOff;
|
|
y += glyph->info.yOff;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
glamor_glyphs(CARD8 op,
|
|
PicturePtr src,
|
|
PicturePtr dst,
|
|
PictFormatPtr mask_format,
|
|
INT16 x_src,
|
|
INT16 y_src, int nlist, GlyphListPtr list, GlyphPtr * glyphs)
|
|
{
|
|
PicturePtr picture;
|
|
PixmapPtr mask_pixmap = 0;
|
|
PicturePtr mask;
|
|
ScreenPtr screen = dst->pDrawable->pScreen;
|
|
int width = 0, height = 0;
|
|
int x, y;
|
|
int x_dst = list->xOff, y_dst = list->yOff;
|
|
int n;
|
|
GlyphPtr glyph;
|
|
int error;
|
|
BoxRec extents = { 0, 0, 0, 0 };
|
|
CARD32 component_alpha;
|
|
glamor_glyph_buffer_t buffer;
|
|
|
|
/* If we don't have a mask format but all the glyphs have the same format
|
|
* and don't intersect, use the glyph format as mask format for the full
|
|
* benefits of the glyph cache.
|
|
*/
|
|
if (!mask_format) {
|
|
Bool same_format = TRUE;
|
|
int i;
|
|
|
|
mask_format = list[0].format;
|
|
|
|
for (i = 0; i < nlist; i++) {
|
|
if (mask_format->format != list[i].format->format) {
|
|
same_format = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!same_format || (mask_format->depth != 1 &&
|
|
glamor_glyphs_intersect(nlist, list,
|
|
glyphs))) {
|
|
mask_format = NULL;
|
|
}
|
|
}
|
|
|
|
if (mask_format) {
|
|
GCPtr gc;
|
|
xRectangle rect;
|
|
|
|
glamor_glyph_extents(nlist, list, glyphs, &extents);
|
|
|
|
if (extents.x2 <= extents.x1 || extents.y2 <= extents.y1)
|
|
return;
|
|
width = extents.x2 - extents.x1;
|
|
height = extents.y2 - extents.y1;
|
|
|
|
if (mask_format->depth == 1) {
|
|
PictFormatPtr a8Format =
|
|
PictureMatchFormat(screen, 8, PICT_a8);
|
|
|
|
if (a8Format)
|
|
mask_format = a8Format;
|
|
}
|
|
|
|
mask_pixmap = screen->CreatePixmap(screen, width, height,
|
|
mask_format->depth,
|
|
CREATE_PIXMAP_USAGE_SCRATCH);
|
|
if (!mask_pixmap)
|
|
return;
|
|
component_alpha = NeedsComponent(mask_format->format);
|
|
mask = CreatePicture(0, &mask_pixmap->drawable,
|
|
mask_format, CPComponentAlpha,
|
|
&component_alpha, serverClient, &error);
|
|
if (!mask) {
|
|
screen->DestroyPixmap(mask_pixmap);
|
|
return;
|
|
}
|
|
gc = GetScratchGC(mask_pixmap->drawable.depth, screen);
|
|
ValidateGC(&mask_pixmap->drawable, gc);
|
|
rect.x = 0;
|
|
rect.y = 0;
|
|
rect.width = width;
|
|
rect.height = height;
|
|
gc->ops->PolyFillRect(&mask_pixmap->drawable, gc, 1, &rect);
|
|
FreeScratchGC(gc);
|
|
x = -extents.x1;
|
|
y = -extents.y1;
|
|
} else {
|
|
mask = dst;
|
|
x = 0;
|
|
y = 0;
|
|
}
|
|
buffer.count = 0;
|
|
buffer.source = NULL;
|
|
while (nlist--) {
|
|
x += list->xOff;
|
|
y += list->yOff;
|
|
n = list->len;
|
|
while (n--) {
|
|
glyph = *glyphs++;
|
|
picture = GlyphPicture(glyph)[screen->myNum];
|
|
|
|
if (glyph->info.width > 0 && glyph->info.height > 0 &&
|
|
glamor_buffer_glyph(screen, &buffer, glyph, x,
|
|
y) == GLAMOR_GLYPH_NEED_FLUSH) {
|
|
if (mask_format)
|
|
glamor_glyphs_to_mask(mask, &buffer);
|
|
else
|
|
glamor_glyphs_to_dst(op, src, dst,
|
|
&buffer, x_src, y_src,
|
|
x_dst, y_dst);
|
|
|
|
glamor_buffer_glyph(screen, &buffer, glyph, x, y);
|
|
}
|
|
|
|
x += glyph->info.xOff;
|
|
y += glyph->info.yOff;
|
|
}
|
|
list++;
|
|
}
|
|
|
|
if (buffer.count) {
|
|
if (mask_format)
|
|
glamor_glyphs_to_mask(mask, &buffer);
|
|
else
|
|
glamor_glyphs_to_dst(op, src, dst, &buffer,
|
|
x_src, y_src, x_dst, y_dst);
|
|
}
|
|
|
|
if (mask_format) {
|
|
x = extents.x1;
|
|
y = extents.y1;
|
|
CompositePicture(op,
|
|
src,
|
|
mask,
|
|
dst,
|
|
x_src + x - x_dst,
|
|
y_src + y - y_dst, 0, 0, x, y, width, height);
|
|
FreePicture(mask, 0);
|
|
screen->DestroyPixmap(mask_pixmap);
|
|
}
|
|
}
|