diff options
Diffstat (limited to 'glamor/glamor_glyphs.c')
| -rw-r--r-- | glamor/glamor_glyphs.c | 1806 |
1 files changed, 1806 insertions, 0 deletions
diff --git a/glamor/glamor_glyphs.c b/glamor/glamor_glyphs.c new file mode 100644 index 000000000..fc361df42 --- /dev/null +++ b/glamor/glamor_glyphs.c @@ -0,0 +1,1806 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * Partly based on code Copyright © 2000 SuSE, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Red Hat not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. Red Hat makes no representations about the + * suitability of this software for any purpose. It is provided "as is" + * without express or implied warranty. + * + * Red Hat DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL Red Hat + * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of SuSE not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. SuSE makes no representations about the + * suitability of this software for any purpose. It is provided "as is" + * without express or implied warranty. + * + * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE + * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Owen Taylor <otaylor@fishsoup.net> + * Based on code by: Keith Packard + */ + +#include <stdlib.h> + +#include "glamor_priv.h" + +#include <mipict.h> + +#if DEBUG_GLYPH_CACHE +#define DBG_GLYPH_CACHE(a) ErrorF a +#else +#define DBG_GLYPH_CACHE(a) +#endif + +/* Width of the pixmaps we use for the caches; this should be less than + * max texture size of the driver; this may need to actually come from + * the driver. + */ + +/* Maximum number of glyphs we buffer on the stack before flushing + * rendering to the mask or destination surface. + */ +#define GLYPH_BUFFER_SIZE 1024 + +#define CACHE_PICTURE_SIZE 1024 +#define GLYPH_MIN_SIZE 8 +#define GLYPH_MAX_SIZE 64 +#define GLYPH_CACHE_SIZE ((CACHE_PICTURE_SIZE) * CACHE_PICTURE_SIZE / (GLYPH_MIN_SIZE * GLYPH_MIN_SIZE)) +#define MASK_CACHE_MAX_SIZE 32 +#define MASK_CACHE_WIDTH (CACHE_PICTURE_SIZE / MASK_CACHE_MAX_SIZE) +#define MASK_CACHE_MASK ((1LL << (MASK_CACHE_WIDTH)) - 1) + +typedef struct { + PicturePtr source; + glamor_composite_rect_t rects[GLYPH_BUFFER_SIZE + 4]; + int count; +} glamor_glyph_buffer_t; + +struct glamor_glyph { + glamor_glyph_cache_t *cache; + uint16_t x, y; + uint16_t size, pos; + unsigned long long left_x1_map, left_x2_map; + unsigned long long right_x1_map, right_x2_map; /* Use to check real intersect or not. */ + Bool has_edge_map; + Bool cached; +}; + +typedef enum { + GLAMOR_GLYPH_SUCCESS, /* Glyph added to render buffer */ + GLAMOR_GLYPH_FAIL, /* out of memory, etc */ + GLAMOR_GLYPH_NEED_FLUSH, /* would evict a glyph already in the buffer */ +} glamor_glyph_cache_result_t; + +#define NeedsComponent(f) (PICT_FORMAT_A(f) != 0 && PICT_FORMAT_RGB(f) != 0) +static DevPrivateKeyRec glamor_glyph_key; + +static inline struct glamor_glyph * +glamor_glyph_get_private(GlyphPtr glyph) +{ + return (struct glamor_glyph*)glyph->devPrivates; +} + +/* + * Mask cache is located at the corresponding cache picture's last row. + * and is deadicated for the mask picture when do the glyphs_via_mask. + * + * As we split the glyphs list according to its overlapped or non-overlapped, + * we can reduce the length of glyphs to do the glyphs_via_mask to 2 or 3 + * glyphs one time for most cases. Thus it give us a case to allocate a + * small portion of the corresponding cache directly as the mask picture. + * Then we can rendering the glyphs to this mask picture, and latter we + * can accumulate the second steps, composite the mask to the dest with + * the other non-overlapped glyphs's rendering process. + * Another major benefit is we now only need to clear a relatively small mask + * region then before. It also make us implement a bunch mask picture clearing + * algorithm to avoid too frequently small region clearing. + * + * If there is no any overlapping, this method will not get performance gain. + * If there is some overlapping, then this algorithm can get about 15% performance + * gain. + */ + +struct glamor_glyph_mask_cache_entry { + int idx; + int width; + int height; + int x; + int y; +}; + +static struct glamor_glyph_mask_cache { + PixmapPtr pixmap; + struct glamor_glyph_mask_cache_entry mcache[MASK_CACHE_WIDTH]; + unsigned int free_bitmap; + unsigned int cleared_bitmap; +}*mask_cache[GLAMOR_NUM_GLYPH_CACHE_FORMATS] = {NULL}; + +static void +clear_mask_cache_bitmap(struct glamor_glyph_mask_cache *maskcache, + unsigned int clear_mask_bits) +{ + unsigned int i = 0; + BoxRec box[MASK_CACHE_WIDTH]; + int box_cnt = 0; + + assert((clear_mask_bits & ~MASK_CACHE_MASK) == 0); + for(i = 0; i < MASK_CACHE_WIDTH;i++) + { + if (clear_mask_bits & (1 << i)) { + box[box_cnt].x1 = maskcache->mcache[i].x; + box[box_cnt].x2 = maskcache->mcache[i].x + MASK_CACHE_MAX_SIZE; + box[box_cnt].y1 = maskcache->mcache[i].y; + box[box_cnt].y2 = maskcache->mcache[i].y + MASK_CACHE_MAX_SIZE; + box_cnt++; + } + } + glamor_solid_boxes(maskcache->pixmap, box, box_cnt, 0); + maskcache->cleared_bitmap |= clear_mask_bits; +} + +static void +clear_mask_cache(struct glamor_glyph_mask_cache *maskcache) +{ + int x = 0; + int cnt = MASK_CACHE_WIDTH; + unsigned int i = 0; + struct glamor_glyph_mask_cache_entry *mce; + glamor_solid(maskcache->pixmap, 0, CACHE_PICTURE_SIZE, CACHE_PICTURE_SIZE, + MASK_CACHE_MAX_SIZE, GXcopy, 0xFFFFFFFF, 0); + mce = &maskcache->mcache[0]; + while(cnt--) { + mce->width = 0; + mce->height = 0; + mce->x = x; + mce->y = CACHE_PICTURE_SIZE; + mce->idx = i++; + x += MASK_CACHE_MAX_SIZE; + mce++; + } + maskcache->free_bitmap = MASK_CACHE_MASK; + maskcache->cleared_bitmap = MASK_CACHE_MASK; +} + +static int +find_continuous_bits(unsigned int bits, int bits_cnt, unsigned int *pbits_mask) +{ + int idx = 0; + unsigned int bits_mask; + bits_mask = ((1LL << bits_cnt) - 1); + + if (unlikely(bits_cnt > 56)) { + while(bits) { + if ((bits & bits_mask) == bits_mask) { + *pbits_mask = bits_mask << idx; + return idx; + } + bits >>= 1; + idx++; + } + } else { + idx = __fls(bits); + while(bits) { + unsigned int temp_bits; + temp_bits = bits_mask << (idx - bits_cnt + 1); + if ((bits & temp_bits) == temp_bits) { + *pbits_mask = temp_bits; + return (idx - bits_cnt + 1); + } + /* Find first zero. And clear the tested bit.*/ + bits &= ~(1LL<<idx); + idx = __fls(~bits); + bits &= ~((1LL << idx) - 1); + idx--; + } + } + return -1; +} + +static struct glamor_glyph_mask_cache_entry * +get_mask_cache(struct glamor_glyph_mask_cache *maskcache, int blocks) +{ + int free_cleared_bit, idx = -1; + int retry_cnt = 0; + unsigned int bits_mask = 0; + + if (maskcache->free_bitmap == 0) + return NULL; +retry: + free_cleared_bit = maskcache->free_bitmap & maskcache->cleared_bitmap; + if (free_cleared_bit && blocks == 1) { + idx = __fls(free_cleared_bit); + bits_mask = 1 << idx; + } else if (free_cleared_bit && blocks > 1) { + idx = find_continuous_bits(free_cleared_bit, blocks, &bits_mask); + } + + if (idx < 0) { + clear_mask_cache_bitmap(maskcache, maskcache->free_bitmap); + if (retry_cnt++ > 2) + return NULL; + goto retry; + } + + maskcache->cleared_bitmap &= ~bits_mask; + maskcache->free_bitmap &= ~bits_mask; + DEBUGF("get idx %d free %x clear %x \n", + idx, maskcache->free_bitmap, maskcache->cleared_bitmap); + return &maskcache->mcache[idx]; +} + +static void +put_mask_cache_bitmap(struct glamor_glyph_mask_cache *maskcache, + unsigned int bitmap) +{ + maskcache->free_bitmap |= bitmap; + DEBUGF("put bitmap %x free %x clear %x \n", + bitmap, maskcache->free_bitmap, maskcache->cleared_bitmap); +} + +static void +glamor_unrealize_glyph_caches(ScreenPtr pScreen) +{ + glamor_screen_private *glamor = glamor_get_screen_private(pScreen); + int i; + + if (!glamor->glyph_cache_initialized) + return; + + for (i = 0; i < GLAMOR_NUM_GLYPH_CACHE_FORMATS; i++) { + glamor_glyph_cache_t *cache = &glamor->glyphCaches[i]; + + if (cache->picture) + FreePicture(cache->picture, 0); + + if (cache->glyphs) + free(cache->glyphs); + + if (mask_cache[i]) + free(mask_cache[i]); + } + glamor->glyph_cache_initialized = FALSE; +} + +void +glamor_glyphs_fini(ScreenPtr pScreen) +{ + glamor_unrealize_glyph_caches(pScreen); +} + +/* All caches for a single format share a single pixmap for glyph storage, + * allowing mixing glyphs of different sizes without paying a penalty + * for switching between source pixmaps. (Note that for a size of font + * right at the border between two sizes, we might be switching for almost + * every glyph.) + * + * This function allocates the storage pixmap, and then fills in the + * rest of the allocated structures for all caches with the given format. + */ + +static Bool +glamor_realize_glyph_caches(ScreenPtr pScreen) +{ + glamor_screen_private *glamor = glamor_get_screen_private(pScreen); + unsigned int formats[] = { + PIXMAN_a8, + PIXMAN_a8r8g8b8, + }; + int i; + + if (glamor->glyph_cache_initialized) + return TRUE; + + glamor->glyph_cache_initialized = TRUE; + memset(glamor->glyphCaches, 0, sizeof(glamor->glyphCaches)); + + for (i = 0; i < sizeof(formats) / sizeof(formats[0]); i++) { + glamor_glyph_cache_t *cache = &glamor->glyphCaches[i]; + PixmapPtr pixmap; + PicturePtr picture; + XID component_alpha; + int depth = PIXMAN_FORMAT_DEPTH(formats[i]); + int error; + PictFormatPtr pPictFormat = + PictureMatchFormat(pScreen, depth, formats[i]); + if (!pPictFormat) + goto bail; + + /* Now allocate the pixmap and picture */ + pixmap = pScreen->CreatePixmap(pScreen, + CACHE_PICTURE_SIZE, + CACHE_PICTURE_SIZE + MASK_CACHE_MAX_SIZE, depth, + 0); + if (!pixmap) + goto bail; + + component_alpha = NeedsComponent(pPictFormat->format); + picture = CreatePicture(0, &pixmap->drawable, pPictFormat, + CPComponentAlpha, &component_alpha, + serverClient, &error); + + pScreen->DestroyPixmap(pixmap); + if (!picture) + goto bail; + + ValidatePicture(picture); + + cache->picture = picture; + cache->glyphs = calloc(sizeof(GlyphPtr), GLYPH_CACHE_SIZE); + if (!cache->glyphs) + goto bail; + + cache->evict = rand() % GLYPH_CACHE_SIZE; + mask_cache[i] = calloc(1, sizeof(*mask_cache[i])); + mask_cache[i]->pixmap = pixmap; + clear_mask_cache(mask_cache[i]); + } + assert(i == GLAMOR_NUM_GLYPH_CACHE_FORMATS); + + return TRUE; + + bail: + glamor_unrealize_glyph_caches(pScreen); + return FALSE; +} + + +Bool +glamor_glyphs_init(ScreenPtr pScreen) +{ + if (!dixRegisterPrivateKey(&glamor_glyph_key, + PRIVATE_GLYPH, sizeof(struct glamor_glyph))) + return FALSE; + + /* Skip pixmap creation if we don't intend to use it. */ + + return glamor_realize_glyph_caches(pScreen); +} + +/* The most efficient thing to way to upload the glyph to the screen + * is to use CopyArea; glamor pixmaps are always offscreen. + */ +static void +glamor_glyph_cache_upload_glyph(ScreenPtr screen, + glamor_glyph_cache_t * cache, + GlyphPtr glyph, int x, int y) +{ + PicturePtr pGlyphPicture = GlyphPicture(glyph)[screen->myNum]; + PixmapPtr pGlyphPixmap = (PixmapPtr) pGlyphPicture->pDrawable; + PixmapPtr pCachePixmap = (PixmapPtr) cache->picture->pDrawable; + PixmapPtr scratch; + BoxRec box; + GCPtr gc; + + gc = GetScratchGC(pCachePixmap->drawable.depth, screen); + if (!gc) + return; + + ValidateGC(&pCachePixmap->drawable, gc); + + scratch = pGlyphPixmap; + if (pGlyphPixmap->drawable.depth != pCachePixmap->drawable.depth) { + + scratch = glamor_create_pixmap(screen, + glyph->info.width, + glyph->info.height, + pCachePixmap-> + drawable.depth, 0); + if (scratch) { + PicturePtr picture; + int error; + + picture = + CreatePicture(0, + &scratch->drawable, + PictureMatchFormat + (screen, + pCachePixmap-> + drawable.depth, + cache->picture->format), + 0, NULL, serverClient, + &error); + if (picture) { + ValidatePicture(picture); + glamor_composite(PictOpSrc, + pGlyphPicture, + NULL, picture, + 0, 0, 0, 0, 0, + 0, + glyph->info.width, + glyph->info.height); + FreePicture(picture, 0); + } + } else { + scratch = pGlyphPixmap; + } + } + + box.x1 = x; + box.y1 = y; + box.x2 = x + glyph->info.width; + box.y2 = y + glyph->info.height; + glamor_copy_n_to_n_nf(&scratch->drawable, + &pCachePixmap->drawable, NULL, + &box, 1, + -x, -y, + FALSE, FALSE, 0, NULL); + if (scratch != pGlyphPixmap) + screen->DestroyPixmap(scratch); + + FreeScratchGC(gc); +} + + +void +glamor_glyph_unrealize(ScreenPtr screen, GlyphPtr glyph) +{ + struct glamor_glyph *priv; + + /* Use Lookup in case we have not attached to this glyph. */ + priv = glamor_glyph_get_private(glyph); + + if (priv->cached) + priv->cache->glyphs[priv->pos] = 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 x, y, n; + + x1 = y1 = MAXSHORT; + x2 = y2 = MINSHORT; + x = y = 0; + while (nlist--) { + x += list->xOff; + y += list->yOff; + n = list->len; + list++; + while (n--) { + GlyphPtr glyph = *glyphs++; + int v; + + v = x - glyph->info.x; + if (v < x1) + x1 = v; + v += glyph->info.width; + if (v > x2) + x2 = v; + + v = y - glyph->info.y; + if (v < y1) + y1 = v; + v += glyph->info.height; + if (v > y2) + y2 = v; + + x += glyph->info.xOff; + y += glyph->info.yOff; + } + } + + extents->x1 = x1 < MINSHORT ? MINSHORT : x1; + extents->x2 = x2 > MAXSHORT ? MAXSHORT : x2; + extents->y1 = y1 < MINSHORT ? MINSHORT : y1; + extents->y2 = y2 > MAXSHORT ? MAXSHORT : y2; +} + +static void +glamor_glyph_priv_get_edge_map(GlyphPtr glyph, struct glamor_glyph *priv, + PicturePtr glyph_picture) +{ + PixmapPtr glyph_pixmap = (PixmapPtr) glyph_picture->pDrawable; + int j; + unsigned long long left_x1_map = 0, left_x2_map = 0; + unsigned long long right_x1_map = 0, right_x2_map = 0; + int bitsPerPixel; + int stride; + void *bits; + int width; + unsigned int left_x1_data = 0, left_x2_data = 0; + unsigned int right_x1_data = 0, right_x2_data = 0; + + bitsPerPixel = glyph_pixmap->drawable.bitsPerPixel; + stride = glyph_pixmap->devKind; + bits = glyph_pixmap->devPrivate.ptr; + width = glyph->info.width; + + if (glyph_pixmap->drawable.width < 2 + || !(glyph_pixmap->drawable.depth == 8 + || glyph_pixmap->drawable.depth == 1 + || glyph_pixmap->drawable.depth == 32)) { + priv->has_edge_map = FALSE; + return; + } + + left_x1_map = left_x2_map = 0; + right_x1_map = right_x2_map = 0; + + for(j = 0; j < glyph_pixmap->drawable.height; j++) + { + if (bitsPerPixel == 8) { + unsigned char *data; + data = (unsigned char*)((unsigned char*)bits + stride * j); + left_x1_data = *data++; + left_x2_data = *data; + data = (unsigned char*)((unsigned char*)bits + stride * j + width - 2); + right_x1_data = *data++; + right_x2_data = *data; + } else if (bitsPerPixel == 32) { + left_x1_data = *((unsigned int*)bits + stride/4 * j); + left_x2_data = *((unsigned int*)bits + stride/4 * j + 1); + right_x1_data = *((unsigned int*)bits + stride/4 * j + width - 2); + right_x2_data = *((unsigned int*)bits + stride/4 * j + width - 1); + } else if (bitsPerPixel == 1) { + unsigned char temp; + temp = *((unsigned char*)glyph_pixmap->devPrivate.ptr + + glyph_pixmap->devKind * j) & 0x3; + left_x1_data = temp & 0x1; + left_x2_data = temp & 0x2; + + temp = *((unsigned char*)glyph_pixmap->devPrivate.ptr + + glyph_pixmap->devKind * j + + (glyph_pixmap->drawable.width - 2)/8); + right_x1_data = temp + & (1 << ((glyph_pixmap->drawable.width - 2) % 8)); + temp = *((unsigned char*)glyph_pixmap->devPrivate.ptr + + glyph_pixmap->devKind * j + + (glyph_pixmap->drawable.width - 1)/8); + right_x2_data = temp + & (1 << ((glyph_pixmap->drawable.width - 1) % 8)); + } + left_x1_map |= (left_x1_data !=0) << j; + left_x2_map |= (left_x2_data !=0) << j; + right_x1_map |= (right_x1_data !=0) << j; + right_x2_map |= (right_x2_data !=0) << j; + } + + priv->left_x1_map = left_x1_map; + priv->left_x2_map = left_x2_map; + priv->right_x1_map = right_x1_map; + priv->right_x2_map = right_x2_map; + priv->has_edge_map = TRUE; + return; +} + +/** + * 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. + */ + +#define INTERSECTED_TYPE_MASK 1 +#define NON_INTERSECTED 0 +#define INTERSECTED 1 + +struct glamor_glyph_list { + int nlist; + GlyphListPtr list; + GlyphPtr *glyphs; + int type; +}; + +static Bool +glyph_new_fixed_list(struct glamor_glyph_list *fixed_list, + GlyphPtr *cur_glyphs, + GlyphPtr **head_glyphs, + GlyphListPtr cur_list, + int cur_pos, int cur_x, int cur_y, + int x1, int y1, int x2, int y2, + GlyphListPtr *head_list, + int *head_pos, + int *head_x, + int *head_y, + int *fixed_cnt, + int type, + BoxPtr prev_extents + ) +{ + int x_off = 0; + int y_off = 0; + int n_off = 0; + int list_cnt; + if (type == NON_INTERSECTED) { + if (x1 < prev_extents->x2 && x2 > prev_extents->x1 + && y1 < prev_extents->y2 && y2 > prev_extents->y1) + return FALSE; + x_off = (*(cur_glyphs-1))->info.xOff; + y_off = (*(cur_glyphs-1))->info.yOff; + n_off = 1; + } + + list_cnt = cur_list - *head_list + 1; + if (cur_pos <= n_off) { + DEBUGF("break at %d n_off %d\n", cur_pos, n_off); + list_cnt--; + if (cur_pos < n_off) { + /* we overlap with previous list's last glyph. */ + x_off += cur_list->xOff; + y_off += cur_list->yOff; + cur_list--; + cur_pos = cur_list->len; + if (cur_pos <= n_off) { + list_cnt--; + } + } + } + DEBUGF("got %d lists\n", list_cnt); + if (list_cnt != 0) { + fixed_list->list = malloc(list_cnt * sizeof(*cur_list)); + memcpy(fixed_list->list, *head_list, list_cnt * sizeof(*cur_list)); + fixed_list->list[0].xOff = *head_x; + fixed_list->list[0].yOff = *head_y; + fixed_list->glyphs = *head_glyphs; + fixed_list->type = type & INTERSECTED_TYPE_MASK; + fixed_list->nlist = list_cnt; + if (cur_list != *head_list) { + fixed_list->list[0].len = (*head_list)->len - *head_pos; + if (cur_pos != n_off) + fixed_list->list[list_cnt - 1].len = cur_pos - n_off; + } else + fixed_list->list[0].len = cur_pos - *head_pos - n_off; + (*fixed_cnt)++; + } + + if (type <= INTERSECTED) { + *head_list = cur_list; + *head_pos = cur_pos - n_off; + *head_x = cur_x - x_off; + *head_y = cur_y - y_off; + *head_glyphs = cur_glyphs - n_off; + } + return TRUE; +} + +/* + * This function detects glyph lists's overlapping. + * + * If check_fake_overlap is set, then it will check the glyph's left + * and right small boxes's real overlapping pixels. And if there is + * no real pixel overlapping, then it will not be treated as overlapped + * case. And we also can configured it to ignore less than 2 pixels + * overlappig. + * + * This function analyzes all the lists and split the list to multiple + * lists which are pure overlapped glyph lists or pure non-overlapped + * list if the overlapping only ocurr on the two adjacent glyphs. + * Otherwise, it return -1. + * + **/ + +static int +glamor_glyphs_intersect(int nlist, GlyphListPtr list, GlyphPtr * glyphs, + PictFormatShort mask_format, + ScreenPtr screen, Bool check_fake_overlap, + struct glamor_glyph_list * fixed_list, + int fixed_size) +{ + int x1, x2, y1, y2; + int n; + int x, y; + BoxPtr extents; + BoxRec prev_extents; + Bool first = TRUE, first_list = TRUE; + Bool need_free_list_region = FALSE; + Bool need_free_fixed_list = FALSE; + struct glamor_glyph *priv = NULL; + Bool in_non_intersected_list = -1; + GlyphListPtr head_list; + int head_x, head_y, head_pos; + int fixed_cnt = 0; + GlyphPtr *head_glyphs; + GlyphListPtr cur_list = list; + RegionRec list_region; + RegionRec current_region; + BoxRec current_box; + + if (nlist > 1) { + pixman_region_init(&list_region); + need_free_list_region = TRUE; + } + + pixman_region_init(¤t_region); + + extents = pixman_region_extents(¤t_region); + + x = 0; + y = 0; + x1 = x2 = y1 = y2 = 0; + n = 0; + extents->x1 = 0; + extents->y1 = 0; + extents->x2 = 0; + extents->y2 = 0; + + head_list = list; + DEBUGF("has %d lists.\n", nlist); + while (nlist--) { + BoxRec left_box, right_box = {0}; + Bool has_left_edge_box = FALSE, has_right_edge_box = FALSE; + Bool left_to_right; + struct glamor_glyph *left_priv = NULL, *right_priv = NULL; + + x += list->xOff; + y += list->yOff; + n = list->len; + left_to_right = TRUE; + cur_list = list++; + + if (unlikely(!first_list)) { + pixman_region_init_with_extents(¤t_region, extents); + pixman_region_union(&list_region, &list_region, ¤t_region); + first = TRUE; + } else { + head_list = cur_list; + head_pos = cur_list->len - n; + head_x = x; + head_y = y; + head_glyphs = glyphs; + } + + DEBUGF("current list %p has %d glyphs\n", cur_list, n); + while (n--) { + GlyphPtr glyph = *glyphs++; + + DEBUGF("the %dth glyph\n", cur_list->len - n - 1); + if (glyph->info.width == 0 + || glyph->info.height == 0) { + x += glyph->info.xOff; + y += glyph->info.yOff; + continue; + } + if (mask_format + && mask_format != GlyphPicture(glyph)[screen->myNum]->format) { + need_free_fixed_list = TRUE; + goto done; + } + + x1 = x - glyph->info.x; + if (x1 < MINSHORT) + x1 = MINSHORT; + y1 = y - glyph->info.y; + if (y1 < MINSHORT) + y1 = MINSHORT; + if (check_fake_overlap) + priv = glamor_glyph_get_private(glyph); + + x2 = x1 + glyph->info.width; + y2 = y1 + glyph->info.height; + + if (x2 > MAXSHORT) + x2 = MAXSHORT; + if (y2 > MAXSHORT) + y2 = MAXSHORT; + + if (first) { + extents->x1 = x1; + extents->y1 = y1; + extents->x2 = x2; + extents->y2 = y2; + + prev_extents = *extents; + + first = FALSE; + if (check_fake_overlap && priv + && priv->has_edge_map && glyph->info.yOff == 0) { + left_box.x1 = x1; + left_box.x2 = x1 + 1; + left_box.y1 = y1; + + right_box.x1 = x2 - 2; + right_box.x2 = x2 - 1; + right_box.y1 = y1; + left_priv = right_priv = priv; + has_left_edge_box = TRUE; + has_right_edge_box = TRUE; + } + } else { + if (unlikely(!first_list)) { + current_box.x1 = x1; + current_box.y1 = y1; + current_box.x2 = x2; + current_box.y2 = y2; + if (pixman_region_contains_rectangle(&list_region, ¤t_box) != PIXMAN_REGION_OUT) { + need_free_fixed_list = TRUE; + goto done; + } + } + + if (x1 < extents->x2 && x2 > extents->x1 + && y1 < extents->y2 + && y2 > extents->y1) { + + if (check_fake_overlap && (has_left_edge_box || has_right_edge_box) + && priv->has_edge_map && glyph->info.yOff == 0) { + int left_dx, right_dx; + unsigned long long intersected; + + left_dx = has_left_edge_box ? 1 : 0; + right_dx = has_right_edge_box ? 1 : 0; + if (x1 + 1 < extents->x2 - right_dx && x2 - 1 > extents->x1 + left_dx) + goto real_intersected; + + if (left_to_right && has_right_edge_box) { + if (x1 == right_box.x1) { + intersected = ((priv->left_x1_map & right_priv->right_x1_map) + | (priv->left_x2_map & right_priv->right_x2_map)); + if (intersected) + goto real_intersected; + } else if (x1 == right_box.x2) { + intersected = (priv->left_x1_map & right_priv->right_x2_map); + if (intersected) { + #ifdef GLYPHS_EDEGE_OVERLAP_LOOSE_CHECK + /* tolerate with two pixels overlap. */ + intersected &= ~(1<<__fls(intersected)); + if ((intersected & (intersected - 1))) + #endif + goto real_intersected; + } + } + } else if (!left_to_right && has_left_edge_box) { + if (x2 - 1 == left_box.x1) { + intersected = (priv->right_x2_map & left_priv->left_x1_map); + if (intersected) { + #ifdef GLYPHS_EDEGE_OVERLAP_LOOSE_CHECK + /* tolerate with two pixels overlap. */ + intersected &= ~(1<<__fls(intersected)); + if ((intersected & (intersected - 1))) + #endif + goto real_intersected; + } + } else if (x2 - 1 == right_box.x2) { + if ((priv->right_x1_map & left_priv->left_x1_map) + || (priv->right_x2_map & left_priv->left_x2_map)) + goto real_intersected; + } + } else { + if (x1 < extents->x2 && x1 + 2 > extents->x1) + goto real_intersected; + } + goto non_intersected; + } else { +real_intersected: + DEBUGF("overlap with previous glyph.\n"); + if (in_non_intersected_list == 1) { + if (fixed_cnt >= fixed_size) { + need_free_fixed_list = TRUE; + goto done; + } + if (!glyph_new_fixed_list(&fixed_list[fixed_cnt], + glyphs - 1, + &head_glyphs, + cur_list, + cur_list->len - (n + 1), x, y, + x1, y1, x2, y2, + &head_list, + &head_pos, + &head_x, + &head_y, &fixed_cnt, + NON_INTERSECTED, + &prev_extents + )){ + need_free_fixed_list = TRUE; + goto done; + } + } + + in_non_intersected_list = 0; + + } + } else { +non_intersected: + DEBUGF("doesn't overlap with previous glyph.\n"); + if (in_non_intersected_list == 0) { + if (fixed_cnt >= fixed_size) { + need_free_fixed_list = TRUE; + goto done; + } + if (!glyph_new_fixed_list(&fixed_list[fixed_cnt], + glyphs - 1, + &head_glyphs, + cur_list, + cur_list->len - (n + 1), x, y, + x1, y1, x2, y2, + &head_list, + &head_pos, + &head_x, + &head_y, &fixed_cnt, + INTERSECTED, + &prev_extents + )) { + need_free_fixed_list = TRUE; + goto done; + } + } + in_non_intersected_list = 1; + } + prev_extents = *extents; + } + + if (check_fake_overlap && priv + && priv->has_edge_map && glyph->info.yOff == 0) { + if (!has_left_edge_box || x1 < extents->x1) { + left_box.x1 = x1; + left_box.x2 = x1 + 1; + left_box.y1 = y1; + has_left_edge_box = TRUE; + left_priv = priv; + } + + if (!has_right_edge_box || x2 > extents->x2) { + right_box.x1 = x2 - 2; + right_box.x2 = x2 - 1; + right_box.y1 = y1; + has_right_edge_box = TRUE; + right_priv = priv; + } + } + + 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; + } + first_list = FALSE; + } + + if (in_non_intersected_list == 0 && fixed_cnt == 0) { + fixed_cnt = -1; + goto done; + } + + if ((in_non_intersected_list != -1 + || head_pos != n) && (fixed_cnt > 0)) { + if (fixed_cnt >= fixed_size) { + need_free_fixed_list = TRUE; + goto done; + } + if (!glyph_new_fixed_list(&fixed_list[fixed_cnt], + glyphs - 1, + &head_glyphs, + cur_list, + cur_list->len - (n + 1), x, y, + x1, y1, x2, y2, + &head_list, + &head_pos, + &head_x, + &head_y, &fixed_cnt, + (!in_non_intersected_list) | 0x80, + &prev_extents + )) { + need_free_fixed_list = TRUE; + goto done; + } + } + +done: + if (need_free_list_region) + pixman_region_fini(&list_region); + pixman_region_fini(¤t_region); + + if (need_free_fixed_list && fixed_cnt >= 0) { + while(fixed_cnt--) { + free(fixed_list[fixed_cnt].list); + } + } + + DEBUGF("Got %d fixed list \n", fixed_cnt); + return fixed_cnt; +} + +static inline unsigned int +glamor_glyph_size_to_count(int size) +{ + size /= GLYPH_MIN_SIZE; + return size * size; +} + +static inline unsigned int +glamor_glyph_count_to_mask(int count) +{ + return ~(count - 1); +} + +static inline unsigned int +glamor_glyph_size_to_mask(int size) +{ + return + glamor_glyph_count_to_mask(glamor_glyph_size_to_count(size)); +} + +static PicturePtr +glamor_glyph_cache(glamor_screen_private *glamor, GlyphPtr glyph, int *out_x, + int *out_y) +{ + ScreenPtr screen = glamor->screen; + PicturePtr glyph_picture = GlyphPicture(glyph)[screen->myNum]; + glamor_glyph_cache_t *cache = + &glamor->glyphCaches[PICT_FORMAT_RGB(glyph_picture->format) != + 0]; + struct glamor_glyph *priv = NULL, *evicted_priv = NULL; + int size, mask, pos, s; + + if (glyph->info.width > GLYPH_MAX_SIZE + || glyph->info.height > GLYPH_MAX_SIZE) + return NULL; + + for (size = GLYPH_MIN_SIZE; size <= GLYPH_MAX_SIZE; size *= 2) + if (glyph->info.width <= size + && glyph->info.height <= size) + break; + + s = glamor_glyph_size_to_count(size); + mask = glamor_glyph_count_to_mask(s); + pos = (cache->count + s - 1) & mask; + + priv = glamor_glyph_get_private(glyph); + if (pos < GLYPH_CACHE_SIZE) { + cache->count = pos + s; + } else { + for (s = size; s <= GLYPH_MAX_SIZE; s *= 2) { + int i = + cache->evict & glamor_glyph_size_to_mask(s); + GlyphPtr evicted = cache->glyphs[i]; + if (evicted == NULL) + continue; + + evicted_priv = glamor_glyph_get_private(evicted); + assert(evicted_priv->pos == i); + if (evicted_priv->size >= s) { + cache->glyphs[i] = NULL; + evicted_priv->cached = FALSE; + pos = cache->evict & + glamor_glyph_size_to_mask(size); + } else + evicted_priv = NULL; + break; + } + if (evicted_priv == NULL) { + int count = glamor_glyph_size_to_count(size); + mask = glamor_glyph_count_to_mask(count); + pos = cache->evict & mask; + for (s = 0; s < count; s++) { + GlyphPtr evicted = cache->glyphs[pos + s]; + if (evicted != NULL) { + + evicted_priv = + glamor_glyph_get_private + (evicted); + + assert(evicted_priv->pos == pos + s); + evicted_priv->cached = FALSE; + cache->glyphs[pos + s] = NULL; + } + } + + } + /* And pick a new eviction position */ + cache->evict = rand() % GLYPH_CACHE_SIZE; + } + + + cache->glyphs[pos] = glyph; + + priv->cache = cache; + priv->size = size; + priv->pos = pos; + s = pos / ((GLYPH_MAX_SIZE / GLYPH_MIN_SIZE) * + (GLYPH_MAX_SIZE / GLYPH_MIN_SIZE)); + priv->x = + s % (CACHE_PICTURE_SIZE / GLYPH_MAX_SIZE) * GLYPH_MAX_SIZE; + priv->y = + (s / (CACHE_PICTURE_SIZE / GLYPH_MAX_SIZE)) * GLYPH_MAX_SIZE; + for (s = GLYPH_MIN_SIZE; s < GLYPH_MAX_SIZE; s *= 2) { + if (pos & 1) + priv->x += s; + if (pos & 2) + priv->y += s; + pos >>= 2; + } + + glamor_glyph_cache_upload_glyph(screen, cache, glyph, priv->x, + priv->y); +#ifndef GLYPHS_NO_EDEGEMAP_OVERLAP_CHECK + if (priv->has_edge_map == FALSE && glyph->info.width >= 2) + glamor_glyph_priv_get_edge_map(glyph, priv, glyph_picture); +#endif + priv->cached = TRUE; + + *out_x = priv->x; + *out_y = priv->y; + return cache->picture; +} +typedef void (*glyphs_flush_func)(void * arg); +struct glyphs_flush_dst_arg { + CARD8 op; + PicturePtr src; + PicturePtr dst; + glamor_glyph_buffer_t * buffer; + int x_src,y_src; + int x_dst, y_dst; +}; + +static struct glyphs_flush_dst_arg dst_arg; +static struct glyphs_flush_mask_arg mask_arg; +static glamor_glyph_buffer_t dst_buffer; +static glamor_glyph_buffer_t mask_buffer; +unsigned long long mask_glyphs_cnt = 0; +unsigned long long dst_glyphs_cnt = 0; +#define GLYPHS_DST_MODE_VIA_MASK 0 +#define GLYPHS_DST_MODE_VIA_MASK_CACHE 1 +#define GLYPHS_DST_MODE_TO_DST 2 +#define GLYPHS_DST_MODE_MASK_TO_DST 3 + +struct glyphs_flush_mask_arg { + PicturePtr mask; + glamor_glyph_buffer_t *buffer; + struct glamor_glyph_mask_cache *maskcache; + unsigned int used_bitmap; +}; + +static void +glamor_glyphs_flush_mask(struct glyphs_flush_mask_arg *arg) +{ + if (arg->buffer->count>0) { +#ifdef RENDER + glamor_composite_glyph_rects(PictOpAdd, arg->buffer->source, + NULL, arg->mask, + arg->buffer->count, + arg->buffer->rects); +#endif + } + arg->buffer->count = 0; + arg->buffer->source = NULL; + +} + +static void +glamor_glyphs_flush_dst(struct glyphs_flush_dst_arg * arg) +{ + if (!arg->buffer) + return; + + if (mask_buffer.count > 0) { + glamor_glyphs_flush_mask(&mask_arg); + } + if (mask_arg.used_bitmap) { + put_mask_cache_bitmap(mask_arg.maskcache, mask_arg.used_bitmap); + mask_arg.used_bitmap = 0; + } + + if (arg->buffer->count > 0) { + glamor_composite_glyph_rects(arg->op, arg->src, + arg->buffer->source, arg->dst, + arg->buffer->count, + &arg->buffer->rects[0]); + arg->buffer->count = 0; + arg->buffer->source = NULL; + } +} + + +static glamor_glyph_cache_result_t +glamor_buffer_glyph(glamor_screen_private *glamor_priv, + glamor_glyph_buffer_t * buffer, + PictFormatShort format, + GlyphPtr glyph, struct glamor_glyph *priv, + int x_glyph, int y_glyph, + int dx, int dy, int w, int h, + int glyphs_dst_mode, + glyphs_flush_func glyphs_flush, void *flush_arg) +{ + ScreenPtr screen = glamor_priv->screen; + glamor_composite_rect_t *rect; + PicturePtr source; + int x, y; + glamor_glyph_cache_t *cache; + + if (glyphs_dst_mode != GLYPHS_DST_MODE_MASK_TO_DST) + priv = glamor_glyph_get_private(glyph); + + if (PICT_FORMAT_BPP(format) == 1) + format = PICT_a8; + + cache = + &glamor_priv->glyphCaches[PICT_FORMAT_RGB(format) != 0]; + + if (buffer->source + && buffer->source != cache->picture + && glyphs_flush) { + (*glyphs_flush)(flush_arg); + glyphs_flush = NULL; + } + + if (buffer->count == GLYPH_BUFFER_SIZE + && glyphs_flush) { + (*glyphs_flush)(flush_arg); + glyphs_flush = NULL; + } + + if (priv && priv->cached) { + rect = &buffer->rects[buffer->count++]; + rect->x_src = priv->x + dx; + rect->y_src = priv->y + dy; + if (buffer->source == NULL) + buffer->source = priv->cache->picture; + if (glyphs_dst_mode <= GLYPHS_DST_MODE_VIA_MASK_CACHE) + assert(priv->cache->glyphs[priv->pos] == glyph); + } else { + assert(glyphs_dst_mode != GLYPHS_DST_MODE_MASK_TO_DST); + if (glyphs_flush) + (*glyphs_flush)(flush_arg); + source = glamor_glyph_cache(glamor_priv, glyph, &x, &y); + + if (source != NULL) { + rect = &buffer->rects[buffer->count++]; + rect->x_src = x + dx; + rect->y_src = y + dy; + if (buffer->source == NULL) + buffer->source = source; + if (glyphs_dst_mode == GLYPHS_DST_MODE_VIA_MASK_CACHE) { + glamor_gl_dispatch *dispatch; + /* mode 1 means we are using global mask cache, + * thus we have to composite from the cache picture + * to the cache picture, we need a flush here to make + * sure latter we get the corret glyphs data.*/ + dispatch = glamor_get_dispatch(glamor_priv); + dispatch->glFlush(); + glamor_put_dispatch(glamor_priv); + } + } else { + /* Couldn't find the glyph in the cache, use the glyph picture directly */ + source = GlyphPicture(glyph)[screen->myNum]; + if (buffer->source + && buffer->source != source + && glyphs_flush) + (*glyphs_flush)(flush_arg); + buffer->source = source; + + rect = &buffer->rects[buffer->count++]; + rect->x_src = 0 + dx; + rect->y_src = 0 + dy; + } + priv = glamor_glyph_get_private(glyph); + } + + rect->x_dst = x_glyph; + rect->y_dst = y_glyph; + if (glyphs_dst_mode != GLYPHS_DST_MODE_MASK_TO_DST) { + rect->x_dst -= glyph->info.x; + rect->y_dst -= glyph->info.y; + } + rect->width = w; + rect->height = h; + if (glyphs_dst_mode > GLYPHS_DST_MODE_VIA_MASK_CACHE) { + rect->x_mask = rect->x_src; + rect->y_mask = rect->y_src; + rect->x_src = dst_arg.x_src + rect->x_dst - dst_arg.x_dst; + rect->y_src = dst_arg.y_src + rect->y_dst - dst_arg.y_dst; + } + + return GLAMOR_GLYPH_SUCCESS; +} + + +static void +glamor_buffer_glyph_clip(glamor_screen_private *glamor_priv, + BoxPtr rects, + int nrect, PictFormatShort format, + GlyphPtr glyph, struct glamor_glyph *priv, + int glyph_x, int glyph_y, + int glyph_dx, int glyph_dy, + int width, int height, + int glyphs_mode, + glyphs_flush_func flush_func, + void *arg + ) +{ + int i; + for (i = 0; i < nrect; i++) { + int dst_x, dst_y; + int dx, dy; + int x2, y2; + + dst_x = glyph_x - glyph_dx; + dst_y = glyph_y - glyph_dy; + x2 = dst_x + width; + y2 = dst_y + height; + dx = dy = 0; + if (rects[i].y1 >= y2) + break; + + if (dst_x < rects[i].x1) + dx = rects[i].x1 - dst_x, dst_x = rects[i].x1; + if (x2 > rects[i].x2) + x2 = rects[i].x2; + if (dst_y < rects[i].y1) + dy = rects[i].y1 - dst_y, dst_y = rects[i].y1; + if (y2 > rects[i].y2) + y2 = rects[i].y2; + if (dst_x < x2 && dst_y < y2) { + + glamor_buffer_glyph(glamor_priv, + &dst_buffer, + format, + glyph, priv, + dst_x + glyph_dx, + dst_y + glyph_dy, + dx, dy, + x2 - dst_x, y2 - dst_y, + glyphs_mode, + flush_func, + arg); + } + } +} + + +static void +glamor_glyphs_via_mask(CARD8 op, + PicturePtr src, + PicturePtr dst, + PictFormatPtr mask_format, + INT16 x_src, + INT16 y_src, + int nlist, GlyphListPtr list, GlyphPtr * glyphs, + Bool use_mask_cache) +{ + 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 }; + XID component_alpha; + glamor_screen_private *glamor_priv; + int need_free_mask = FALSE; + glamor_glyph_buffer_t buffer; + struct glyphs_flush_mask_arg arg; + glamor_glyph_buffer_t *pmask_buffer; + struct glyphs_flush_mask_arg *pmask_arg; + struct glamor_glyph_mask_cache_entry *mce = NULL; + struct glamor_glyph_mask_cache *maskcache; + glamor_glyph_cache_t *cache; + int glyphs_dst_mode; + + glamor_glyph_extents(nlist, list, glyphs, &extents); + + if (extents.x2 <= extents.x1 || extents.y2 <= extents.y1) + return; + glamor_priv = glamor_get_screen_private(screen); + 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; + } + + cache = &glamor_priv->glyphCaches + [PICT_FORMAT_RGB(mask_format->format) != 0]; + maskcache = mask_cache[PICT_FORMAT_RGB(mask_format->format) != 0]; + + x = -extents.x1; + y = -extents.y1; + if (!use_mask_cache + || width > (CACHE_PICTURE_SIZE/4) + || height > MASK_CACHE_MAX_SIZE) { +new_mask_pixmap: + mask_pixmap = glamor_create_pixmap(screen, width, height, + mask_format->depth, + CREATE_PIXMAP_USAGE_SCRATCH); + if (!mask_pixmap) { + glamor_destroy_pixmap(mask_pixmap); + return; + } + glamor_solid(mask_pixmap, 0, 0, width, height, GXcopy, 0xFFFFFFFF, 0); + component_alpha = NeedsComponent(mask_format->format); + mask = CreatePicture(0, &mask_pixmap->drawable, + mask_format, CPComponentAlpha, + &component_alpha, serverClient, &error); + if (!mask) + return; + need_free_mask = TRUE; + pmask_arg = &arg; + pmask_buffer = &buffer; + pmask_buffer->count = 0; + pmask_buffer->source = NULL; + pmask_arg->used_bitmap = 0; + glyphs_dst_mode = GLYPHS_DST_MODE_VIA_MASK; + } else { + int retry_cnt = 0; +retry: + mce = get_mask_cache(maskcache, + (width + MASK_CACHE_MAX_SIZE - 1) / MASK_CACHE_MAX_SIZE); + + if (mce == NULL) { + glamor_glyphs_flush_dst(&dst_arg); + retry_cnt++; + if (retry_cnt > 2) { + assert(0); + goto new_mask_pixmap; + } + goto retry; + } + + mask = cache->picture; + x += mce->x; + y += mce->y; + mce->width = (width + MASK_CACHE_MAX_SIZE - 1) / MASK_CACHE_MAX_SIZE; + mce->height = 1; + if (mask_arg.mask && mask_arg.mask != mask + && mask_buffer.count != 0) + glamor_glyphs_flush_dst(&dst_arg); + pmask_arg = &mask_arg; + pmask_buffer = &mask_buffer; + pmask_arg->maskcache = maskcache; + glyphs_dst_mode = GLYPHS_DST_MODE_VIA_MASK_CACHE; + } + pmask_arg->mask = mask; + pmask_arg->buffer = pmask_buffer; + while (nlist--) { + x += list->xOff; + y += list->yOff; + n = list->len; + mask_glyphs_cnt += n; + while (n--) { + glyph = *glyphs++; + if (glyph->info.width > 0 + && glyph->info.height > 0) { + glyphs_flush_func flush_func; + void *temp_arg; + if (need_free_mask) { + if (pmask_buffer->count) + flush_func = (glyphs_flush_func)glamor_glyphs_flush_mask; + else + flush_func = NULL; + temp_arg = pmask_arg; + } else { + /* If we are using global mask cache, then we need to + * flush dst instead of mask. As some dst depends on the + * previous mask result. Just flush mask can't get all previous's + * overlapped glyphs.*/ + if (dst_buffer.count || mask_buffer.count) + flush_func = (glyphs_flush_func)glamor_glyphs_flush_dst; + else + flush_func = NULL; + temp_arg = &dst_arg; + } + glamor_buffer_glyph(glamor_priv, pmask_buffer, + mask_format->format, + glyph, NULL, x, y, + 0, 0, + glyph->info.width, glyph->info.height, + glyphs_dst_mode, + flush_func, + (void*)temp_arg); + } + x += glyph->info.xOff; + y += glyph->info.yOff; + } + list++; + } + + x = extents.x1; + y = extents.y1; + if (need_free_mask) { + glamor_glyphs_flush_mask(pmask_arg); + CompositePicture(op, + src, + mask, + dst, + x_src + x - x_dst, + y_src + y - y_dst, 0, 0, x, y, width, height); + FreePicture(mask, 0); + glamor_destroy_pixmap(mask_pixmap); + } else { + struct glamor_glyph priv; + glyphs_flush_func flush_func; + BoxPtr rects; + int nrect; + + priv.cache = cache; + priv.x = mce->x; + priv.y = mce->y; + priv.cached = TRUE; + rects = REGION_RECTS(dst->pCompositeClip); + nrect = REGION_NUM_RECTS(dst->pCompositeClip); + + pmask_arg->used_bitmap |= ((1 << mce->width) - 1) << mce->idx; + dst_arg.op = op; + dst_arg.src = src; + dst_arg.dst = dst; + dst_arg.buffer = &dst_buffer; + dst_arg.x_src = x_src; + dst_arg.y_src = y_src; + dst_arg.x_dst = x_dst; + dst_arg.y_dst = y_dst; + + if (dst_buffer.source == NULL) { + dst_buffer.source = cache->picture; + } else if (dst_buffer.source != cache->picture) { + glamor_glyphs_flush_dst(&dst_arg); + dst_buffer.source = cache->picture; + } + + x += dst->pDrawable->x; + y += dst->pDrawable->y; + + if (dst_buffer.count || mask_buffer.count) + flush_func = (glyphs_flush_func)glamor_glyphs_flush_dst; + else + flush_func = NULL; + + glamor_buffer_glyph_clip(glamor_priv, + rects, nrect, + mask_format->format, + NULL, &priv, + x, y, + 0, 0, + width, height, + GLYPHS_DST_MODE_MASK_TO_DST, + flush_func, + (void *)&dst_arg + ); + } +} + +static void +glamor_glyphs_to_dst(CARD8 op, + PicturePtr src, + PicturePtr dst, + INT16 x_src, + INT16 y_src, + int nlist, GlyphListPtr list, + GlyphPtr * glyphs) +{ + ScreenPtr screen = dst->pDrawable->pScreen; + int x = 0, y = 0; + int x_dst = list->xOff, y_dst = list->yOff; + int n; + GlyphPtr glyph; + BoxPtr rects; + int nrect; + glamor_screen_private *glamor_priv; + + rects = REGION_RECTS(dst->pCompositeClip); + nrect = REGION_NUM_RECTS(dst->pCompositeClip); + + glamor_priv = glamor_get_screen_private(screen); + + dst_arg.op = op; + dst_arg.src = src; + dst_arg.dst = dst; + dst_arg.buffer = &dst_buffer; + dst_arg.x_src = x_src; + dst_arg.y_src = y_src; + dst_arg.x_dst = x_dst; + dst_arg.y_dst = y_dst; + + x = dst->pDrawable->x; + y = dst->pDrawable->y; + + while (nlist--) { + x += list->xOff; + y += list->yOff; + n = list->len; + dst_glyphs_cnt += n; + while (n--) { + glyph = *glyphs++; + + if (glyph->info.width > 0 + && glyph->info.height > 0) { + glyphs_flush_func flush_func; + + if (dst_buffer.count || mask_buffer.count) + flush_func = (glyphs_flush_func)glamor_glyphs_flush_dst; + else + flush_func = NULL; + glamor_buffer_glyph_clip(glamor_priv, + rects, nrect, + (GlyphPicture(glyph)[screen->myNum])->format, + glyph, NULL, + x, y, + glyph->info.x, glyph->info.y, + glyph->info.width, glyph->info.height, + GLYPHS_DST_MODE_TO_DST, + flush_func, + (void *)&dst_arg + ); + } + + x += glyph->info.xOff; + y += glyph->info.yOff; + } + list++; + } +} +#define MAX_FIXED_SIZE +static void +glamor_glyphs_reset_buffer(glamor_glyph_buffer_t *buffer) +{ + buffer->count = 0; + buffer->source = NULL; +} + +static Bool +_glamor_glyphs(CARD8 op, + PicturePtr src, + PicturePtr dst, + PictFormatPtr mask_format, + INT16 x_src, + INT16 y_src, int nlist, GlyphListPtr list, + GlyphPtr * glyphs, Bool fallback) +{ + PictFormatShort format; + int fixed_size, fixed_cnt = 0; + struct glamor_glyph_list *fixed_list = NULL; + Bool need_free_list = FALSE; +#ifndef GLYPHS_NO_EDEGEMAP_OVERLAP_CHECK + Bool check_fake_overlap = TRUE; + if (!(op == PictOpOver + || op == PictOpAdd + || op == PictOpXor)) { + /* C = (0,0,0,0) D = glyphs , SRC = A, DEST = B (faked overlapped glyphs, overlapped with (0,0,0,0)). + * For those op, (A IN (C ADD D)) OP B != (A IN D) OP ((A IN C) OP B) + * or (A IN (D ADD C)) OP B != (A IN C) OP ((A IN D) OP B) + * We need to split the faked regions to three or two, and composite the disoverlapped small + * boxes one by one. For other Ops, it's safe to composite the whole box. */ + check_fake_overlap = FALSE; + } +#else + Bool check_fake_overlap = FALSE; +#endif + if (mask_format) + format = mask_format->depth << 24 | mask_format->format; + else + format = 0; + + fixed_size = 32; + glamor_glyphs_reset_buffer(&dst_buffer); + + if (!mask_format || (((nlist == 1 && list->len == 1) || op == PictOpAdd) + && (dst->format == ((mask_format->depth << 24) | mask_format->format)))) { + glamor_glyphs_to_dst(op, src, dst, x_src, y_src, nlist, + list, glyphs); + goto last_flush; + } + + glamor_glyphs_reset_buffer(&mask_buffer); + + /* We have mask_format. Need to check the real overlap or not.*/ + format = mask_format->depth << 24 | mask_format->format; + + fixed_list = calloc(fixed_size, sizeof(*fixed_list)); + if (unlikely(fixed_list == NULL)) + fixed_size = 0; + fixed_cnt = glamor_glyphs_intersect(nlist, list, glyphs, + format, dst->pDrawable->pScreen, + check_fake_overlap, + fixed_list, fixed_size); + if (fixed_cnt == 0) + mask_format = NULL; + need_free_list = TRUE; + + if (fixed_cnt <= 0) { + if (mask_format == NULL) { + glamor_glyphs_to_dst(op, src, dst, x_src, y_src, nlist, + list, glyphs); + goto last_flush; + } else { + glamor_glyphs_via_mask(op, src, dst, mask_format, + x_src, y_src, nlist, list, glyphs, + FALSE); + goto free_fixed_list; + } + } else { + + /* We have splitted the original list to serval list, some are overlapped + * and some are non-overlapped. For the non-overlapped, we render it to + * dst directly. For the overlapped, we render it to mask picture firstly, + * then render the mask to dst. If we can use mask cache which is in the + * glyphs cache's last row, we can accumulate the rendering of mask to dst + * with the other dst_buffer's rendering operations thus can reduce the call + * of glDrawElements. + * + * */ + struct glamor_glyph_list *saved_list; + + saved_list = fixed_list; + mask_arg.used_bitmap = 0; + while(fixed_cnt--) { + if (fixed_list->type == NON_INTERSECTED) { + glamor_glyphs_to_dst(op, src, dst, + x_src, y_src, + fixed_list->nlist, + fixed_list->list, + fixed_list->glyphs); + } + else + glamor_glyphs_via_mask(op, src, dst, + mask_format, x_src, y_src, + fixed_list->nlist, + fixed_list->list, + fixed_list->glyphs, TRUE); + + free(fixed_list->list); + fixed_list++; + } + free(saved_list); + need_free_list = FALSE; + } + +last_flush: + if (dst_buffer.count || mask_buffer.count) + glamor_glyphs_flush_dst(&dst_arg); +free_fixed_list: + if(need_free_list) { + assert(fixed_cnt <= 0); + free(fixed_list); + } + return TRUE; +} + +void +glamor_glyphs(CARD8 op, + PicturePtr src, + PicturePtr dst, + PictFormatPtr mask_format, + INT16 x_src, + INT16 y_src, int nlist, GlyphListPtr list, GlyphPtr * glyphs) +{ + _glamor_glyphs(op, src, dst, mask_format, x_src, + y_src, nlist, list, glyphs, TRUE); +} + +Bool +glamor_glyphs_nf(CARD8 op, + PicturePtr src, + PicturePtr dst, + PictFormatPtr mask_format, + INT16 x_src, + INT16 y_src, int nlist, + GlyphListPtr list, GlyphPtr * glyphs) +{ + return _glamor_glyphs(op, src, dst, mask_format, x_src, + y_src, nlist, list, glyphs, FALSE); +} + |