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Diffstat (limited to 'gsk/ngl/gskngltexturelibraryprivate.h')
| -rw-r--r-- | gsk/ngl/gskngltexturelibraryprivate.h | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/gsk/ngl/gskngltexturelibraryprivate.h b/gsk/ngl/gskngltexturelibraryprivate.h deleted file mode 100644 index 0ccf69a054..0000000000 --- a/gsk/ngl/gskngltexturelibraryprivate.h +++ /dev/null @@ -1,208 +0,0 @@ -/* gskngltexturelibraryprivate.h - * - * Copyright 2020 Christian Hergert <chergert@redhat.com> - * - * This file is free software; you can redistribute it and/or modify it under - * the terms of the GNU Lesser General Public License as published by the Free - * Software Foundation; either version 2.1 of the License, or (at your option) - * any later version. - * - * This file is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public - * License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program. If not, see <http://www.gnu.org/licenses/>. - * - * SPDX-License-Identifier: LGPL-2.1-or-later - */ - -#ifndef __GSK_NGL_TEXTURE_LIBRARY_PRIVATE_H__ -#define __GSK_NGL_TEXTURE_LIBRARY_PRIVATE_H__ - -#include "gskngltypesprivate.h" -#include "gskngltextureprivate.h" - -#include "stb_rect_pack.h" - -G_BEGIN_DECLS - -#define GSK_TYPE_GL_TEXTURE_LIBRARY (gsk_ngl_texture_library_get_type ()) -#define GSK_NGL_TEXTURE_LIBRARY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GSK_TYPE_GL_TEXTURE_LIBRARY, GskNglTextureLibrary)) -#define GSK_IS_NGL_TEXTURE_LIBRARY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GSK_TYPE_GL_TEXTURE_LIBRARY)) -#define GSK_NGL_TEXTURE_LIBRARY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GSK_TYPE_GL_TEXTURE_LIBRARY, GskNglTextureLibraryClass)) -#define GSK_IS_NGL_TEXTURE_LIBRARY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GSK_TYPE_GL_TEXTURE_LIBRARY)) -#define GSK_NGL_TEXTURE_LIBRARY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GSK_TYPE_GL_TEXTURE_LIBRARY, GskNglTextureLibraryClass)) - -typedef struct _GskNglTextureAtlas -{ - struct stbrp_context context; - struct stbrp_node *nodes; - - int width; - int height; - - guint texture_id; - - /* Pixels of rects that have been used at some point, - * But are now unused. - */ - int unused_pixels; - - void *user_data; -} GskNglTextureAtlas; - -typedef struct _GskNglTextureAtlasEntry -{ - /* A backreference to either the atlas or texture containing - * the contents of the atlas entry. For larger items, no atlas - * is used and instead a direct texture. - */ - union { - GskNglTextureAtlas *atlas; - GskNglTexture *texture; - }; - - /* The area within the atlas translated to 0..1 bounds */ - struct { - float x; - float y; - float x2; - float y2; - } area; - - /* Number of pixels in the entry, used to calculate usage - * of an atlas while processing. - */ - guint n_pixels : 29; - - /* If entry has marked pixels as used in the atlas this frame */ - guint used : 1; - - /* If entry was accessed this frame */ - guint accessed : 1; - - /* When true, backref is an atlas, otherwise texture */ - guint is_atlased : 1; -} GskNglTextureAtlasEntry; - -typedef struct _GskNglTextureLibrary -{ - GObject parent_instance; - GskNglDriver *driver; - GHashTable *hash_table; - guint max_entry_size; -} GskNglTextureLibrary; - -typedef struct _GskNglTextureLibraryClass -{ - GObjectClass parent_class; - - void (*begin_frame) (GskNglTextureLibrary *library, - gint64 frame_id, - GPtrArray *removed_atlases); -} GskNglTextureLibraryClass; - -G_DEFINE_AUTOPTR_CLEANUP_FUNC (GskNglTextureLibrary, g_object_unref) - -GType gsk_ngl_texture_library_get_type (void) G_GNUC_CONST; -void gsk_ngl_texture_library_set_funcs (GskNglTextureLibrary *self, - GHashFunc hash_func, - GEqualFunc equal_func, - GDestroyNotify key_destroy, - GDestroyNotify value_destroy); -void gsk_ngl_texture_library_begin_frame (GskNglTextureLibrary *self, - gint64 frame_id, - GPtrArray *removed_atlases); -gpointer gsk_ngl_texture_library_pack (GskNglTextureLibrary *self, - gpointer key, - gsize valuelen, - guint width, - guint height, - int padding, - guint *out_packed_x, - guint *out_packed_y); - -static inline void -gsk_ngl_texture_atlas_mark_unused (GskNglTextureAtlas *self, - int n_pixels) -{ - g_assert (n_pixels >= 0); - - self->unused_pixels += n_pixels; -} - -static inline void -gsk_ngl_texture_atlas_entry_mark_used (GskNglTextureAtlasEntry *entry) -{ - if (entry->used == TRUE || entry->is_atlased == FALSE) - return; - - entry->atlas->unused_pixels -= entry->n_pixels; - entry->used = TRUE; -} - -static inline void -gsk_ngl_texture_atlas_entry_mark_unused (GskNglTextureAtlasEntry *entry) -{ - if (entry->used == FALSE || entry->is_atlased == FALSE) - return; - - entry->atlas->unused_pixels += entry->n_pixels; - entry->used = FALSE; -} - -static inline gboolean -gsk_ngl_texture_library_lookup (GskNglTextureLibrary *self, - gconstpointer key, - GskNglTextureAtlasEntry **out_entry) -{ - GskNglTextureAtlasEntry *entry = g_hash_table_lookup (self->hash_table, key); - - if G_LIKELY (entry != NULL && entry->accessed && entry->used) - { - *out_entry = entry; - return TRUE; - } - - if (entry != NULL) - { - gsk_ngl_texture_atlas_entry_mark_used (entry); - entry->accessed = TRUE; - *out_entry = entry; - return TRUE; - } - - return FALSE; -} - -static inline guint -GSK_NGL_TEXTURE_ATLAS_ENTRY_TEXTURE (gconstpointer d) -{ - const GskNglTextureAtlasEntry *e = d; - - return e->is_atlased ? e->atlas->texture_id - : e->texture ? e->texture->texture_id : 0; -} - -static inline double -gsk_ngl_texture_atlas_get_unused_ratio (const GskNglTextureAtlas *self) -{ - if (self->unused_pixels > 0) - return (double)(self->unused_pixels) / (double)(self->width * self->height); - return 0.0; -} - -static inline gboolean -gsk_ngl_texture_library_can_cache (GskNglTextureLibrary *self, - int width, - int height) -{ - g_assert (self->max_entry_size > 0); - return width <= self->max_entry_size && height <= self->max_entry_size; -} - -G_END_DECLS - -#endif /* __GSK_NGL_TEXTURE_LIBRARY_PRIVATE_H__ */ |