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/* gskgldriverprivate.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
*/
#pragma once
#include <gdk/gdkgltextureprivate.h>
#include "gskgltypesprivate.h"
#include "gskgltextureprivate.h"
G_BEGIN_DECLS
enum {
UNIFORM_SHARED_ALPHA,
UNIFORM_SHARED_SOURCE,
UNIFORM_SHARED_CLIP_RECT,
UNIFORM_SHARED_VIEWPORT,
UNIFORM_SHARED_PROJECTION,
UNIFORM_SHARED_MODELVIEW,
UNIFORM_SHARED_LAST
};
enum {
UNIFORM_CUSTOM_SIZE = UNIFORM_SHARED_LAST,
UNIFORM_CUSTOM_TEXTURE1,
UNIFORM_CUSTOM_TEXTURE2,
UNIFORM_CUSTOM_TEXTURE3,
UNIFORM_CUSTOM_TEXTURE4,
UNIFORM_CUSTOM_ARG0,
UNIFORM_CUSTOM_ARG1,
UNIFORM_CUSTOM_ARG2,
UNIFORM_CUSTOM_ARG3,
UNIFORM_CUSTOM_ARG4,
UNIFORM_CUSTOM_ARG5,
UNIFORM_CUSTOM_ARG6,
UNIFORM_CUSTOM_ARG7,
UNIFORM_CUSTOM_LAST
};
typedef struct {
gconstpointer pointer;
float scale_x;
float scale_y;
int pointer_is_child;
graphene_rect_t parent_rect; /* Valid when pointer_is_child */
} GskTextureKey;
#define GSK_GL_NO_UNIFORMS CONCAT_EXPANDED(UNIFORM_INVALID_,__COUNTER__)
#define CONCAT_EXPANDED(a,b) CONCAT_EXPANDED2(a,b)
#define CONCAT_EXPANDED2(a,b) a##b
#define GSK_GL_ADD_UNIFORM(pos, KEY, name) UNIFORM_##KEY = UNIFORM_SHARED_LAST + pos,
#define GSK_GL_DEFINE_PROGRAM(name, resource, uniforms) enum { uniforms };
# include "gskglprograms.defs"
#undef GSK_GL_DEFINE_PROGRAM
#undef GSK_GL_ADD_UNIFORM
#undef GSK_GL_NO_UNIFORMS
#undef CONCAT_EXPANDED
#undef CONCAT_EXPANDED2
#define GSK_TYPE_GL_DRIVER (gsk_gl_driver_get_type())
G_DECLARE_FINAL_TYPE (GskGLDriver, gsk_gl_driver, GSK, GL_DRIVER, GObject)
struct _GskGLRenderTarget
{
guint framebuffer_id;
guint texture_id;
int format;
int width;
int height;
};
struct _GskGLDriver
{
GObject parent_instance;
GskGLCommandQueue *shared_command_queue;
GskGLCommandQueue *command_queue;
GskGLGlyphLibrary *glyphs_library;
GskGLIconLibrary *icons_library;
GskGLShadowLibrary *shadows_library;
GArray *texture_pool;
GHashTable *textures;
GHashTable *key_to_texture_id;
GHashTable *texture_id_to_key;
GHashTable *shader_cache;
GArray *autorelease_framebuffers;
GPtrArray *render_targets;
#define GSK_GL_NO_UNIFORMS
#define GSK_GL_ADD_UNIFORM(pos, KEY, name)
#define GSK_GL_DEFINE_PROGRAM(name, resource, uniforms) \
GskGLProgram *name ## _no_clip; \
GskGLProgram *name ## _rect_clip; \
GskGLProgram *name;
# include "gskglprograms.defs"
#undef GSK_GL_NO_UNIFORMS
#undef GSK_GL_ADD_UNIFORM
#undef GSK_GL_DEFINE_PROGRAM
gint64 current_frame_id;
/* Used to reduce number of comparisons */
guint stamps[UNIFORM_SHARED_LAST];
guint debug : 1;
guint in_frame : 1;
};
GskGLDriver * gsk_gl_driver_for_display (GdkDisplay *display,
gboolean debug_shaders,
GError **error);
GskGLCommandQueue * gsk_gl_driver_create_command_queue (GskGLDriver *self,
GdkGLContext *context);
GdkGLContext * gsk_gl_driver_get_context (GskGLDriver *self);
gboolean gsk_gl_driver_create_render_target (GskGLDriver *self,
int width,
int height,
int format,
GskGLRenderTarget **render_target);
guint gsk_gl_driver_release_render_target (GskGLDriver *self,
GskGLRenderTarget *render_target,
gboolean release_texture);
void gsk_gl_driver_begin_frame (GskGLDriver *self,
GskGLCommandQueue *command_queue);
void gsk_gl_driver_end_frame (GskGLDriver *self);
void gsk_gl_driver_after_frame (GskGLDriver *self);
GdkTexture * gsk_gl_driver_create_gdk_texture (GskGLDriver *self,
guint texture_id);
void gsk_gl_driver_cache_texture (GskGLDriver *self,
const GskTextureKey *key,
guint texture_id);
guint gsk_gl_driver_load_texture (GskGLDriver *self,
GdkTexture *texture,
gboolean ensure_mipmap);
GskGLTexture * gsk_gl_driver_create_texture (GskGLDriver *self,
float width,
float height,
int format);
void gsk_gl_driver_release_texture (GskGLDriver *self,
GskGLTexture *texture);
void gsk_gl_driver_release_texture_by_id (GskGLDriver *self,
guint texture_id);
GskGLTexture * gsk_gl_driver_mark_texture_permanent (GskGLDriver *self,
guint texture_id);
void gsk_gl_driver_add_texture_slices (GskGLDriver *self,
GdkTexture *texture,
gboolean ensure_mipmap,
GskGLTextureSlice **out_slices,
guint *out_n_slices);
GskGLProgram * gsk_gl_driver_lookup_shader (GskGLDriver *self,
GskGLShader *shader,
GError **error);
#ifdef G_ENABLE_DEBUG
void gsk_gl_driver_save_texture_to_png (GskGLDriver *self,
int texture_id,
int width,
int height,
const char *filename);
void gsk_gl_driver_save_atlases_to_png (GskGLDriver *self,
const char *filename);
#endif
static inline GskGLTexture *
gsk_gl_driver_get_texture_by_id (GskGLDriver *self,
guint texture_id)
{
return g_hash_table_lookup (self->textures, GUINT_TO_POINTER (texture_id));
}
/**
* gsk_gl_driver_lookup_texture:
* @self: a `GskGLDriver`
* @key: the key for the texture
*
* Looks up a texture in the texture cache by @key.
*
* If the texture could not be found, then zero is returned.
*
* Returns: a positive integer if the texture was found; otherwise 0.
*/
static inline guint
gsk_gl_driver_lookup_texture (GskGLDriver *self,
const GskTextureKey *key)
{
gpointer id;
if (g_hash_table_lookup_extended (self->key_to_texture_id, key, NULL, &id))
{
GskGLTexture *texture = g_hash_table_lookup (self->textures, id);
if (texture != NULL)
texture->last_used_in_frame = self->current_frame_id;
return GPOINTER_TO_UINT (id);
}
return 0;
}
static inline void
gsk_gl_driver_slice_texture (GskGLDriver *self,
GdkTexture *texture,
gboolean ensure_mipmap,
GskGLTextureSlice **out_slices,
guint *out_n_slices)
{
GskGLTexture *t;
t = gdk_texture_get_render_data (texture, self);
if (t && t->slices &&
(t->has_mipmap || !ensure_mipmap))
{
*out_slices = t->slices;
*out_n_slices = t->n_slices;
return;
}
gsk_gl_driver_add_texture_slices (self, texture, ensure_mipmap, out_slices, out_n_slices);
}
G_END_DECLS
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