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/* gskngltexturepool.c
*
* 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
*/
#include "config.h"
#include <gdk/gdktextureprivate.h>
#include "gskngltexturepoolprivate.h"
#include "ninesliceprivate.h"
void
gsk_ngl_texture_free (GskNglTexture *texture)
{
if (texture != NULL)
{
g_assert (texture->link.prev == NULL);
g_assert (texture->link.next == NULL);
if (texture->user)
g_clear_pointer (&texture->user, gdk_texture_clear_render_data);
if (texture->texture_id != 0)
{
glDeleteTextures (1, &texture->texture_id);
texture->texture_id = 0;
}
for (guint i = 0; i < texture->n_slices; i++)
{
glDeleteTextures (1, &texture->slices[i].texture_id);
texture->slices[i].texture_id = 0;
}
g_clear_pointer (&texture->slices, g_free);
g_clear_pointer (&texture->nine_slice, g_free);
g_slice_free (GskNglTexture, texture);
}
}
void
gsk_ngl_texture_pool_init (GskNglTexturePool *self)
{
g_queue_init (&self->queue);
}
void
gsk_ngl_texture_pool_clear (GskNglTexturePool *self)
{
guint *free_me = NULL;
guint *texture_ids;
guint i = 0;
if G_LIKELY (self->queue.length <= 1024)
texture_ids = g_newa (guint, self->queue.length);
else
texture_ids = free_me = g_new (guint, self->queue.length);
while (self->queue.length > 0)
{
GskNglTexture *head = g_queue_peek_head (&self->queue);
g_queue_unlink (&self->queue, &head->link);
texture_ids[i++] = head->texture_id;
head->texture_id = 0;
gsk_ngl_texture_free (head);
}
g_assert (self->queue.length == 0);
if (i > 0)
glDeleteTextures (i, texture_ids);
g_free (free_me);
}
void
gsk_ngl_texture_pool_put (GskNglTexturePool *self,
GskNglTexture *texture)
{
g_assert (self != NULL);
g_assert (texture != NULL);
g_assert (texture->user == NULL);
g_assert (texture->link.prev == NULL);
g_assert (texture->link.next == NULL);
g_assert (texture->link.data == texture);
if (texture->permanent)
gsk_ngl_texture_free (texture);
else
g_queue_push_tail_link (&self->queue, &texture->link);
}
GskNglTexture *
gsk_ngl_texture_pool_get (GskNglTexturePool *self,
int width,
int height,
int min_filter,
int mag_filter)
{
GskNglTexture *texture;
g_assert (self != NULL);
texture = g_slice_new0 (GskNglTexture);
texture->link.data = texture;
texture->min_filter = min_filter;
texture->mag_filter = mag_filter;
glGenTextures (1, &texture->texture_id);
glActiveTexture (GL_TEXTURE0);
glBindTexture (GL_TEXTURE_2D, texture->texture_id);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, min_filter);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, mag_filter);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (gdk_gl_context_get_use_es (gdk_gl_context_get_current ()))
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
else
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
glBindTexture (GL_TEXTURE_2D, 0);
return texture;
}
GskNglTexture *
gsk_ngl_texture_new (guint texture_id,
int width,
int height,
int min_filter,
int mag_filter,
gint64 frame_id)
{
GskNglTexture *texture;
texture = g_slice_new0 (GskNglTexture);
texture->texture_id = texture_id;
texture->link.data = texture;
texture->min_filter = min_filter;
texture->mag_filter = mag_filter;
texture->width = width;
texture->height = height;
texture->last_used_in_frame = frame_id;
return texture;
}
const GskNglTextureNineSlice *
gsk_ngl_texture_get_nine_slice (GskNglTexture *texture,
const GskRoundedRect *outline,
float extra_pixels)
{
g_assert (texture != NULL);
g_assert (outline != NULL);
if G_UNLIKELY (texture->nine_slice == NULL)
{
texture->nine_slice = g_new0 (GskNglTextureNineSlice, 9);
nine_slice_rounded_rect (texture->nine_slice, outline);
nine_slice_grow (texture->nine_slice, extra_pixels);
nine_slice_to_texture_coords (texture->nine_slice, texture->width, texture->height);
}
return texture->nine_slice;
}
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