/* gskgldriverprivate.h * * Copyright 2020 Christian Hergert * * 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 . * * SPDX-License-Identifier: LGPL-2.1-or-later */ #ifndef __GSK_GL_DRIVER_PRIVATE_H__ #define __GSK_GL_DRIVER_PRIVATE_H__ #include #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 filter; 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 min_filter; int mag_filter; 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, int min_filter, int mag_filter, 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, int min_filter, int mag_filter); GskGLTexture * gsk_gl_driver_create_texture (GskGLDriver *self, float width, float height, int format, int min_filter, int mag_filter); 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, 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_atlases_to_png (GskGLDriver *self, const char *directory); #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, GskGLTextureSlice **out_slices, guint *out_n_slices) { GskGLTexture *t; if ((t = gdk_texture_get_render_data (texture, self))) { *out_slices = t->slices; *out_n_slices = t->n_slices; return; } gsk_gl_driver_add_texture_slices (self, texture, out_slices, out_n_slices); } G_END_DECLS #endif /* __GSK_GL_DRIVER_PRIVATE_H__ */