| File: | cdk/cdkglcontext.c |
| Warning: | line 283, column 11 This statement is never executed |
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| 1 | /* CDK - The GIMP Drawing Kit |
| 2 | * |
| 3 | * cdkglcontext.c: GL context abstraction |
| 4 | * |
| 5 | * Copyright © 2014 Emmanuele Bassi |
| 6 | * |
| 7 | * This library is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Library General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This library is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Library General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Library General Public |
| 18 | * License along with this library. If not, see <http://www.gnu.org/licenses/>. |
| 19 | */ |
| 20 | |
| 21 | /** |
| 22 | * SECTION:cdkglcontext |
| 23 | * @Title: CdkGLContext |
| 24 | * @Short_description: OpenGL context |
| 25 | * |
| 26 | * #CdkGLContext is an object representing the platform-specific |
| 27 | * OpenGL drawing context. |
| 28 | * |
| 29 | * #CdkGLContexts are created for a #CdkWindow using |
| 30 | * cdk_window_create_gl_context(), and the context will match |
| 31 | * the #CdkVisual of the window. |
| 32 | * |
| 33 | * A #CdkGLContext is not tied to any particular normal framebuffer. |
| 34 | * For instance, it cannot draw to the #CdkWindow back buffer. The CDK |
| 35 | * repaint system is in full control of the painting to that. Instead, |
| 36 | * you can create render buffers or textures and use cdk_cairo_draw_from_gl() |
| 37 | * in the draw function of your widget to draw them. Then CDK will handle |
| 38 | * the integration of your rendering with that of other widgets. |
| 39 | * |
| 40 | * Support for #CdkGLContext is platform-specific, context creation |
| 41 | * can fail, returning %NULL context. |
| 42 | * |
| 43 | * A #CdkGLContext has to be made "current" in order to start using |
| 44 | * it, otherwise any OpenGL call will be ignored. |
| 45 | * |
| 46 | * ## Creating a new OpenGL context ## |
| 47 | * |
| 48 | * In order to create a new #CdkGLContext instance you need a |
| 49 | * #CdkWindow, which you typically get during the realize call |
| 50 | * of a widget. |
| 51 | * |
| 52 | * A #CdkGLContext is not realized until either cdk_gl_context_make_current(), |
| 53 | * or until it is realized using cdk_gl_context_realize(). It is possible to |
| 54 | * specify details of the GL context like the OpenGL version to be used, or |
| 55 | * whether the GL context should have extra state validation enabled after |
| 56 | * calling cdk_window_create_gl_context() by calling cdk_gl_context_realize(). |
| 57 | * If the realization fails you have the option to change the settings of the |
| 58 | * #CdkGLContext and try again. |
| 59 | * |
| 60 | * ## Using a CdkGLContext ## |
| 61 | * |
| 62 | * You will need to make the #CdkGLContext the current context |
| 63 | * before issuing OpenGL calls; the system sends OpenGL commands to |
| 64 | * whichever context is current. It is possible to have multiple |
| 65 | * contexts, so you always need to ensure that the one which you |
| 66 | * want to draw with is the current one before issuing commands: |
| 67 | * |
| 68 | * |[<!-- language="C" --> |
| 69 | * cdk_gl_context_make_current (context); |
| 70 | * ]| |
| 71 | * |
| 72 | * You can now perform your drawing using OpenGL commands. |
| 73 | * |
| 74 | * You can check which #CdkGLContext is the current one by using |
| 75 | * cdk_gl_context_get_current(); you can also unset any #CdkGLContext |
| 76 | * that is currently set by calling cdk_gl_context_clear_current(). |
| 77 | */ |
| 78 | |
| 79 | #include "config.h" |
| 80 | |
| 81 | #include "cdkglcontextprivate.h" |
| 82 | #include "cdkdisplayprivate.h" |
| 83 | #include "cdkinternals.h" |
| 84 | |
| 85 | #include "cdkintl.h" |
| 86 | #include "cdk-private.h" |
| 87 | |
| 88 | #include <epoxy/gl.h> |
| 89 | |
| 90 | typedef struct { |
| 91 | CdkDisplay *display; |
| 92 | CdkWindow *window; |
| 93 | CdkGLContext *shared_context; |
| 94 | |
| 95 | int major; |
| 96 | int minor; |
| 97 | int gl_version; |
| 98 | |
| 99 | guint realized : 1; |
| 100 | guint use_texture_rectangle : 1; |
| 101 | guint has_gl_framebuffer_blit : 1; |
| 102 | guint has_frame_terminator : 1; |
| 103 | guint has_unpack_subimage : 1; |
| 104 | guint extensions_checked : 1; |
| 105 | guint debug_enabled : 1; |
| 106 | guint forward_compatible : 1; |
| 107 | guint is_legacy : 1; |
| 108 | |
| 109 | int use_es; |
| 110 | |
| 111 | CdkGLContextPaintData *paint_data; |
| 112 | } CdkGLContextPrivate; |
| 113 | |
| 114 | enum { |
| 115 | PROP_0, |
| 116 | |
| 117 | PROP_DISPLAY, |
| 118 | PROP_WINDOW, |
| 119 | PROP_SHARED_CONTEXT, |
| 120 | |
| 121 | LAST_PROP |
| 122 | }; |
| 123 | |
| 124 | static GParamSpec *obj_pspecs[LAST_PROP] = { NULL((void*)0), }; |
| 125 | |
| 126 | G_DEFINE_QUARK (cdk-gl-error-quark, cdk_gl_error)GQuark cdk_gl_error_quark (void) { static GQuark q; if (q == 0 ) q = g_quark_from_static_string ("cdk-gl-error-quark"); return q; } |
| 127 | |
| 128 | G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (CdkGLContext, cdk_gl_context, G_TYPE_OBJECT)static void cdk_gl_context_init (CdkGLContext *self); static void cdk_gl_context_class_init (CdkGLContextClass *klass); static GType cdk_gl_context_get_type_once (void); static gpointer cdk_gl_context_parent_class = ((void*)0); static gint CdkGLContext_private_offset; static void cdk_gl_context_class_intern_init (gpointer klass) { cdk_gl_context_parent_class = g_type_class_peek_parent (klass); if (CdkGLContext_private_offset != 0) g_type_class_adjust_private_offset (klass, &CdkGLContext_private_offset ); cdk_gl_context_class_init ((CdkGLContextClass*) klass); } __attribute__ ((__unused__)) static inline gpointer cdk_gl_context_get_instance_private (CdkGLContext *self) { return (((gpointer) ((guint8*) (self) + (glong) (CdkGLContext_private_offset)))); } GType cdk_gl_context_get_type (void) { static GType static_g_define_type_id = 0; if ((__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id) == sizeof (gpointer), "Expression evaluates to false"); (void) ( 0 ? (gpointer) * (&static_g_define_type_id) : ((void*)0)) ; (!(__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id ) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ (*(&static_g_define_type_id)) gapg_temp_newval; __typeof__ ((&static_g_define_type_id)) gapg_temp_atomic = (&static_g_define_type_id ); __atomic_load (gapg_temp_atomic, &gapg_temp_newval, 5) ; gapg_temp_newval; })) && g_once_init_enter_pointer ( &static_g_define_type_id)); })) ) { GType g_define_type_id = cdk_gl_context_get_type_once (); (__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id) == sizeof (gpointer) , "Expression evaluates to false"); 0 ? (void) (*(&static_g_define_type_id ) = (g_define_type_id)) : (void) 0; g_once_init_leave_pointer ((&static_g_define_type_id), (gpointer) (guintptr) (g_define_type_id )); })) ; } return static_g_define_type_id; } __attribute__ ( (__noinline__)) static GType cdk_gl_context_get_type_once (void ) { GType g_define_type_id = g_type_register_static_simple (( (GType) ((20) << (2))), g_intern_static_string ("CdkGLContext" ), sizeof (CdkGLContextClass), (GClassInitFunc)(void (*)(void )) cdk_gl_context_class_intern_init, sizeof (CdkGLContext), ( GInstanceInitFunc)(void (*)(void)) cdk_gl_context_init, (GTypeFlags ) G_TYPE_FLAG_ABSTRACT); { {{ CdkGLContext_private_offset = g_type_add_instance_private (g_define_type_id, sizeof (CdkGLContextPrivate)); };} } return g_define_type_id; } |
| 129 | |
| 130 | static GPrivate thread_current_context = G_PRIVATE_INIT (g_object_unref){ ((void*)0), (g_object_unref), { ((void*)0), ((void*)0) } }; |
| 131 | |
| 132 | static void |
| 133 | cdk_gl_context_dispose (GObject *gobject) |
| 134 | { |
| 135 | CdkGLContext *context = CDK_GL_CONTEXT (gobject)((((CdkGLContext*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((gobject)), ((cdk_gl_context_get_type ())))))); |
| 136 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 137 | CdkGLContext *current; |
| 138 | |
| 139 | current = g_private_get (&thread_current_context); |
| 140 | if (current == context) |
| 141 | g_private_replace (&thread_current_context, NULL((void*)0)); |
| 142 | |
| 143 | g_clear_object (&priv->display)do { _Static_assert (sizeof *((&priv->display)) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ ((( &priv->display))) _pp = ((&priv->display)); __typeof__ (*((&priv->display))) _ptr = *_pp; *_pp = ((void*)0); if (_ptr) (g_object_unref) (_ptr); } while (0); |
| 144 | g_clear_object (&priv->window)do { _Static_assert (sizeof *((&priv->window)) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ ((( &priv->window))) _pp = ((&priv->window)); __typeof__ (*((&priv->window))) _ptr = *_pp; *_pp = ((void*)0); if (_ptr) (g_object_unref) (_ptr); } while (0); |
| 145 | g_clear_object (&priv->shared_context)do { _Static_assert (sizeof *((&priv->shared_context)) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ (((&priv->shared_context))) _pp = ((&priv->shared_context )); __typeof__ (*((&priv->shared_context))) _ptr = *_pp ; *_pp = ((void*)0); if (_ptr) (g_object_unref) (_ptr); } while (0); |
| 146 | |
| 147 | G_OBJECT_CLASS (cdk_gl_context_parent_class)((((GObjectClass*) (void *) g_type_check_class_cast ((GTypeClass *) ((cdk_gl_context_parent_class)), (((GType) ((20) << ( 2))))))))->dispose (gobject); |
| 148 | } |
| 149 | |
| 150 | static void |
| 151 | cdk_gl_context_finalize (GObject *gobject) |
| 152 | { |
| 153 | CdkGLContext *context = CDK_GL_CONTEXT (gobject)((((CdkGLContext*) (void *) g_type_check_instance_cast ((GTypeInstance *) ((gobject)), ((cdk_gl_context_get_type ())))))); |
| 154 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 155 | |
| 156 | g_clear_pointer (&priv->paint_data, g_free)do { _Static_assert (sizeof *(&priv->paint_data) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ ((& priv->paint_data)) _pp = (&priv->paint_data); __typeof__ (*(&priv->paint_data)) _ptr = *_pp; *_pp = ((void*)0) ; if (_ptr) (g_free) (_ptr); } while (0); |
| 157 | G_OBJECT_CLASS (cdk_gl_context_parent_class)((((GObjectClass*) (void *) g_type_check_class_cast ((GTypeClass *) ((cdk_gl_context_parent_class)), (((GType) ((20) << ( 2))))))))->finalize (gobject); |
| 158 | } |
| 159 | |
| 160 | static void |
| 161 | cdk_gl_context_set_property (GObject *gobject, |
| 162 | guint prop_id, |
| 163 | const GValue *value, |
| 164 | GParamSpec *pspec) |
| 165 | { |
| 166 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private ((CdkGLContext *) gobject); |
| 167 | |
| 168 | switch (prop_id) |
| 169 | { |
| 170 | case PROP_DISPLAY: |
| 171 | { |
| 172 | CdkDisplay *display = g_value_get_object (value); |
| 173 | |
| 174 | if (display) |
| 175 | g_object_ref (display)((__typeof__ (display)) (g_object_ref) (display)); |
| 176 | |
| 177 | if (priv->display) |
| 178 | g_object_unref (priv->display); |
| 179 | |
| 180 | priv->display = display; |
| 181 | } |
| 182 | break; |
| 183 | |
| 184 | case PROP_WINDOW: |
| 185 | { |
| 186 | CdkWindow *window = g_value_get_object (value); |
| 187 | |
| 188 | if (window) |
| 189 | g_object_ref (window)((__typeof__ (window)) (g_object_ref) (window)); |
| 190 | |
| 191 | if (priv->window) |
| 192 | g_object_unref (priv->window); |
| 193 | |
| 194 | priv->window = window; |
| 195 | } |
| 196 | break; |
| 197 | |
| 198 | case PROP_SHARED_CONTEXT: |
| 199 | { |
| 200 | CdkGLContext *context = g_value_get_object (value); |
| 201 | |
| 202 | if (context != NULL((void*)0)) |
| 203 | priv->shared_context = g_object_ref (context)((__typeof__ (context)) (g_object_ref) (context)); |
| 204 | } |
| 205 | break; |
| 206 | |
| 207 | default: |
| 208 | G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec)do { GObject *_glib__object = (GObject*) ((gobject)); GParamSpec *_glib__pspec = (GParamSpec*) ((pspec)); guint _glib__property_id = ((prop_id)); g_warning ("%s:%d: invalid %s id %u for \"%s\" of type '%s' in '%s'" , "cdkglcontext.c", 208, ("property"), _glib__property_id, _glib__pspec ->name, g_type_name ((((((GTypeClass*) (((GTypeInstance*) ( _glib__pspec))->g_class))->g_type)))), (g_type_name ((( (((GTypeClass*) (((GTypeInstance*) (_glib__object))->g_class ))->g_type)))))); } while (0); |
| 209 | } |
| 210 | } |
| 211 | |
| 212 | static void |
| 213 | cdk_gl_context_get_property (GObject *gobject, |
| 214 | guint prop_id, |
| 215 | GValue *value, |
| 216 | GParamSpec *pspec) |
| 217 | { |
| 218 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private ((CdkGLContext *) gobject); |
| 219 | |
| 220 | switch (prop_id) |
| 221 | { |
| 222 | case PROP_DISPLAY: |
| 223 | g_value_set_object (value, priv->display); |
| 224 | break; |
| 225 | |
| 226 | case PROP_WINDOW: |
| 227 | g_value_set_object (value, priv->window); |
| 228 | break; |
| 229 | |
| 230 | case PROP_SHARED_CONTEXT: |
| 231 | g_value_set_object (value, priv->shared_context); |
| 232 | break; |
| 233 | |
| 234 | default: |
| 235 | G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec)do { GObject *_glib__object = (GObject*) ((gobject)); GParamSpec *_glib__pspec = (GParamSpec*) ((pspec)); guint _glib__property_id = ((prop_id)); g_warning ("%s:%d: invalid %s id %u for \"%s\" of type '%s' in '%s'" , "cdkglcontext.c", 235, ("property"), _glib__property_id, _glib__pspec ->name, g_type_name ((((((GTypeClass*) (((GTypeInstance*) ( _glib__pspec))->g_class))->g_type)))), (g_type_name ((( (((GTypeClass*) (((GTypeInstance*) (_glib__object))->g_class ))->g_type)))))); } while (0); |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | void |
| 240 | cdk_gl_context_upload_texture (CdkGLContext *context, |
| 241 | cairo_surface_t *image_surface, |
| 242 | int width, |
| 243 | int height, |
| 244 | guint texture_target) |
| 245 | { |
| 246 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 247 | |
| 248 | g_return_if_fail (CDK_IS_GL_CONTEXT (context))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return; } } while (0); |
| 249 | |
| 250 | /* GL_UNPACK_ROW_LENGTH is available on desktop GL, OpenGL ES >= 3.0, or if |
| 251 | * the GL_EXT_unpack_subimage extension for OpenGL ES 2.0 is available |
| 252 | */ |
| 253 | if (!priv->use_es || |
| 254 | (priv->use_es && (priv->gl_version >= 30 || priv->has_unpack_subimage))) |
| 255 | { |
| 256 | glPixelStoreiepoxy_glPixelStorei (GL_UNPACK_ALIGNMENT0x0CF5, 4); |
| 257 | glPixelStoreiepoxy_glPixelStorei (GL_UNPACK_ROW_LENGTH0x0CF2, cairo_image_surface_get_stride (image_surface) / 4); |
| 258 | |
| 259 | if (priv->use_es) |
| 260 | glTexImage2Depoxy_glTexImage2D (texture_target, 0, GL_RGBA0x1908, width, height, 0, GL_RGBA0x1908, GL_UNSIGNED_BYTE0x1401, |
| 261 | cairo_image_surface_get_data (image_surface)); |
| 262 | else |
| 263 | glTexImage2Depoxy_glTexImage2D (texture_target, 0, GL_RGBA0x1908, width, height, 0, GL_BGRA0x80E1, GL_UNSIGNED_INT_8_8_8_8_REV0x8367, |
| 264 | cairo_image_surface_get_data (image_surface)); |
| 265 | |
| 266 | glPixelStoreiepoxy_glPixelStorei (GL_UNPACK_ROW_LENGTH0x0CF2, 0); |
| 267 | } |
| 268 | else |
| 269 | { |
| 270 | GLvoid *data = cairo_image_surface_get_data (image_surface); |
| 271 | int stride = cairo_image_surface_get_stride (image_surface); |
| 272 | int i; |
| 273 | |
| 274 | if (priv->use_es) |
| 275 | { |
| 276 | glTexImage2Depoxy_glTexImage2D (texture_target, 0, GL_RGBA0x1908, width, height, 0, GL_RGBA0x1908, GL_UNSIGNED_BYTE0x1401, NULL((void*)0)); |
| 277 | |
| 278 | for (i = 0; i < height; i++) |
| 279 | glTexSubImage2Depoxy_glTexSubImage2D (texture_target, 0, 0, i, width, 1, GL_RGBA0x1908, GL_UNSIGNED_BYTE0x1401, (unsigned char*) data + (i * stride)); |
| 280 | } |
| 281 | else |
| 282 | { |
| 283 | glTexImage2Depoxy_glTexImage2D (texture_target, 0, GL_RGBA0x1908, width, height, 0, GL_BGRA0x80E1, GL_UNSIGNED_INT_8_8_8_8_REV0x8367, NULL((void*)0)); |
This statement is never executed | |
| 284 | |
| 285 | for (i = 0; i < height; i++) |
| 286 | glTexSubImage2Depoxy_glTexSubImage2D (texture_target, 0, 0, i, width, 1, GL_BGRA0x80E1, GL_UNSIGNED_INT_8_8_8_8_REV0x8367, (unsigned char*) data + (i * stride)); |
| 287 | } |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | static gboolean |
| 292 | cdk_gl_context_real_realize (CdkGLContext *self G_GNUC_UNUSED__attribute__ ((__unused__)), |
| 293 | GError **error) |
| 294 | { |
| 295 | g_set_error_literal (error, CDK_GL_ERROR(cdk_gl_error_quark ()), CDK_GL_ERROR_NOT_AVAILABLE, |
| 296 | "The current backend does not support OpenGL"); |
| 297 | |
| 298 | return FALSE(0); |
| 299 | } |
| 300 | |
| 301 | static void |
| 302 | cdk_gl_context_class_init (CdkGLContextClass *klass) |
| 303 | { |
| 304 | GObjectClass *gobject_class = G_OBJECT_CLASS (klass)((((GObjectClass*) (void *) g_type_check_class_cast ((GTypeClass *) ((klass)), (((GType) ((20) << (2)))))))); |
| 305 | |
| 306 | klass->realize = cdk_gl_context_real_realize; |
| 307 | |
| 308 | /** |
| 309 | * CdkGLContext:display: |
| 310 | * |
| 311 | * The #CdkDisplay used to create the #CdkGLContext. |
| 312 | * |
| 313 | * Since: 3.16 |
| 314 | */ |
| 315 | obj_pspecs[PROP_DISPLAY] = |
| 316 | g_param_spec_object ("display", |
| 317 | P_("Display")dgettext("ctk30" "-properties","Display"), |
| 318 | P_("The CDK display used to create the GL context")dgettext("ctk30" "-properties","The CDK display used to create the GL context" ), |
| 319 | CDK_TYPE_DISPLAY(cdk_display_get_type ()), |
| 320 | G_PARAM_READWRITE | |
| 321 | G_PARAM_CONSTRUCT_ONLY | |
| 322 | G_PARAM_STATIC_STRINGS(G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB )); |
| 323 | |
| 324 | /** |
| 325 | * CdkGLContext:window: |
| 326 | * |
| 327 | * The #CdkWindow the gl context is bound to. |
| 328 | * |
| 329 | * Since: 3.16 |
| 330 | */ |
| 331 | obj_pspecs[PROP_WINDOW] = |
| 332 | g_param_spec_object ("window", |
| 333 | P_("Window")dgettext("ctk30" "-properties","Window"), |
| 334 | P_("The CDK window bound to the GL context")dgettext("ctk30" "-properties","The CDK window bound to the GL context" ), |
| 335 | CDK_TYPE_WINDOW(cdk_window_get_type ()), |
| 336 | G_PARAM_READWRITE | |
| 337 | G_PARAM_CONSTRUCT_ONLY | |
| 338 | G_PARAM_STATIC_STRINGS(G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB )); |
| 339 | |
| 340 | /** |
| 341 | * CdkGLContext:shared-context: |
| 342 | * |
| 343 | * The #CdkGLContext that this context is sharing data with, or %NULL |
| 344 | * |
| 345 | * Since: 3.16 |
| 346 | */ |
| 347 | obj_pspecs[PROP_SHARED_CONTEXT] = |
| 348 | g_param_spec_object ("shared-context", |
| 349 | P_("Shared context")dgettext("ctk30" "-properties","Shared context"), |
| 350 | P_("The GL context this context shares data with")dgettext("ctk30" "-properties","The GL context this context shares data with" ), |
| 351 | CDK_TYPE_GL_CONTEXT(cdk_gl_context_get_type ()), |
| 352 | G_PARAM_READWRITE | |
| 353 | G_PARAM_CONSTRUCT_ONLY | |
| 354 | G_PARAM_STATIC_STRINGS(G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB )); |
| 355 | |
| 356 | gobject_class->set_property = cdk_gl_context_set_property; |
| 357 | gobject_class->get_property = cdk_gl_context_get_property; |
| 358 | gobject_class->dispose = cdk_gl_context_dispose; |
| 359 | gobject_class->finalize = cdk_gl_context_finalize; |
| 360 | |
| 361 | g_object_class_install_properties (gobject_class, LAST_PROP, obj_pspecs); |
| 362 | } |
| 363 | |
| 364 | static void |
| 365 | cdk_gl_context_init (CdkGLContext *self) |
| 366 | { |
| 367 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (self); |
| 368 | |
| 369 | priv->use_es = -1; |
| 370 | } |
| 371 | |
| 372 | /*< private > |
| 373 | * cdk_gl_context_end_frame: |
| 374 | * @context: a #CdkGLContext |
| 375 | * @painted: The area that has been redrawn this frame |
| 376 | * @damage: The area that we know is actually different from the last frame |
| 377 | * |
| 378 | * Copies the back buffer to the front buffer. |
| 379 | * |
| 380 | * This function may call `glFlush()` implicitly before returning; it |
| 381 | * is not recommended to call `glFlush()` explicitly before calling |
| 382 | * this function. |
| 383 | * |
| 384 | * Since: 3.16 |
| 385 | */ |
| 386 | void |
| 387 | cdk_gl_context_end_frame (CdkGLContext *context, |
| 388 | cairo_region_t *painted, |
| 389 | cairo_region_t *damage) |
| 390 | { |
| 391 | g_return_if_fail (CDK_IS_GL_CONTEXT (context))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return; } } while (0); |
| 392 | |
| 393 | CDK_GL_CONTEXT_GET_CLASS (context)((((CdkGLContextClass*) (((GTypeInstance*) ((context)))->g_class ))))->end_frame (context, painted, damage); |
| 394 | } |
| 395 | |
| 396 | CdkGLContextPaintData * |
| 397 | cdk_gl_context_get_paint_data (CdkGLContext *context) |
| 398 | { |
| 399 | |
| 400 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 401 | |
| 402 | if (priv->paint_data == NULL((void*)0)) |
| 403 | { |
| 404 | priv->paint_data = g_new0 (CdkGLContextPaintData, 1)((CdkGLContextPaintData *) g_malloc0_n ((1), sizeof (CdkGLContextPaintData ))); |
| 405 | priv->paint_data->is_legacy = priv->is_legacy; |
| 406 | priv->paint_data->use_es = priv->use_es; |
| 407 | } |
| 408 | |
| 409 | return priv->paint_data; |
| 410 | } |
| 411 | |
| 412 | gboolean |
| 413 | cdk_gl_context_use_texture_rectangle (CdkGLContext *context) |
| 414 | { |
| 415 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 416 | |
| 417 | return priv->use_texture_rectangle; |
| 418 | } |
| 419 | |
| 420 | gboolean |
| 421 | cdk_gl_context_has_framebuffer_blit (CdkGLContext *context) |
| 422 | { |
| 423 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 424 | |
| 425 | return priv->has_gl_framebuffer_blit; |
| 426 | } |
| 427 | |
| 428 | gboolean |
| 429 | cdk_gl_context_has_frame_terminator (CdkGLContext *context) |
| 430 | { |
| 431 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 432 | |
| 433 | return priv->has_frame_terminator; |
| 434 | } |
| 435 | |
| 436 | gboolean |
| 437 | cdk_gl_context_has_unpack_subimage (CdkGLContext *context) |
| 438 | { |
| 439 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 440 | |
| 441 | return priv->has_unpack_subimage; |
| 442 | } |
| 443 | |
| 444 | /** |
| 445 | * cdk_gl_context_set_debug_enabled: |
| 446 | * @context: a #CdkGLContext |
| 447 | * @enabled: whether to enable debugging in the context |
| 448 | * |
| 449 | * Sets whether the #CdkGLContext should perform extra validations and |
| 450 | * run time checking. This is useful during development, but has |
| 451 | * additional overhead. |
| 452 | * |
| 453 | * The #CdkGLContext must not be realized or made current prior to |
| 454 | * calling this function. |
| 455 | * |
| 456 | * Since: 3.16 |
| 457 | */ |
| 458 | void |
| 459 | cdk_gl_context_set_debug_enabled (CdkGLContext *context, |
| 460 | gboolean enabled) |
| 461 | { |
| 462 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 463 | |
| 464 | g_return_if_fail (CDK_IS_GL_CONTEXT (context))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return; } } while (0); |
| 465 | g_return_if_fail (!priv->realized)do { if ((!priv->realized)) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__)), "!priv->realized"); return ; } } while (0); |
| 466 | |
| 467 | enabled = !!enabled; |
| 468 | |
| 469 | priv->debug_enabled = enabled; |
| 470 | } |
| 471 | |
| 472 | /** |
| 473 | * cdk_gl_context_get_debug_enabled: |
| 474 | * @context: a #CdkGLContext |
| 475 | * |
| 476 | * Retrieves the value set using cdk_gl_context_set_debug_enabled(). |
| 477 | * |
| 478 | * Returns: %TRUE if debugging is enabled |
| 479 | * |
| 480 | * Since: 3.16 |
| 481 | */ |
| 482 | gboolean |
| 483 | cdk_gl_context_get_debug_enabled (CdkGLContext *context) |
| 484 | { |
| 485 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 486 | |
| 487 | g_return_val_if_fail (CDK_IS_GL_CONTEXT (context), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return ((0)); } } while ( 0); |
| 488 | |
| 489 | return priv->debug_enabled; |
| 490 | } |
| 491 | |
| 492 | /** |
| 493 | * cdk_gl_context_set_forward_compatible: |
| 494 | * @context: a #CdkGLContext |
| 495 | * @compatible: whether the context should be forward compatible |
| 496 | * |
| 497 | * Sets whether the #CdkGLContext should be forward compatible. |
| 498 | * |
| 499 | * Forward compatibile contexts must not support OpenGL functionality that |
| 500 | * has been marked as deprecated in the requested version; non-forward |
| 501 | * compatible contexts, on the other hand, must support both deprecated and |
| 502 | * non deprecated functionality. |
| 503 | * |
| 504 | * The #CdkGLContext must not be realized or made current prior to calling |
| 505 | * this function. |
| 506 | * |
| 507 | * Since: 3.16 |
| 508 | */ |
| 509 | void |
| 510 | cdk_gl_context_set_forward_compatible (CdkGLContext *context, |
| 511 | gboolean compatible) |
| 512 | { |
| 513 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 514 | |
| 515 | g_return_if_fail (CDK_IS_GL_CONTEXT (context))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return; } } while (0); |
| 516 | g_return_if_fail (!priv->realized)do { if ((!priv->realized)) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__)), "!priv->realized"); return ; } } while (0); |
| 517 | |
| 518 | compatible = !!compatible; |
| 519 | |
| 520 | priv->forward_compatible = compatible; |
| 521 | } |
| 522 | |
| 523 | /** |
| 524 | * cdk_gl_context_get_forward_compatible: |
| 525 | * @context: a #CdkGLContext |
| 526 | * |
| 527 | * Retrieves the value set using cdk_gl_context_set_forward_compatible(). |
| 528 | * |
| 529 | * Returns: %TRUE if the context should be forward compatible |
| 530 | * |
| 531 | * Since: 3.16 |
| 532 | */ |
| 533 | gboolean |
| 534 | cdk_gl_context_get_forward_compatible (CdkGLContext *context) |
| 535 | { |
| 536 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 537 | |
| 538 | g_return_val_if_fail (CDK_IS_GL_CONTEXT (context), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return ((0)); } } while ( 0); |
| 539 | |
| 540 | return priv->forward_compatible; |
| 541 | } |
| 542 | |
| 543 | /** |
| 544 | * cdk_gl_context_set_required_version: |
| 545 | * @context: a #CdkGLContext |
| 546 | * @major: the major version to request |
| 547 | * @minor: the minor version to request |
| 548 | * |
| 549 | * Sets the major and minor version of OpenGL to request. |
| 550 | * |
| 551 | * Setting @major and @minor to zero will use the default values. |
| 552 | * |
| 553 | * The #CdkGLContext must not be realized or made current prior to calling |
| 554 | * this function. |
| 555 | * |
| 556 | * Since: 3.16 |
| 557 | */ |
| 558 | void |
| 559 | cdk_gl_context_set_required_version (CdkGLContext *context, |
| 560 | int major, |
| 561 | int minor) |
| 562 | { |
| 563 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 564 | int version, min_ver; |
| 565 | |
| 566 | g_return_if_fail (CDK_IS_GL_CONTEXT (context))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return; } } while (0); |
| 567 | g_return_if_fail (!priv->realized)do { if ((!priv->realized)) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__)), "!priv->realized"); return ; } } while (0); |
| 568 | |
| 569 | /* this will take care of the default */ |
| 570 | if (major == 0 && minor == 0) |
| 571 | { |
| 572 | priv->major = 0; |
| 573 | priv->minor = 0; |
| 574 | return; |
| 575 | } |
| 576 | |
| 577 | /* Enforce a minimum context version number of 3.2 */ |
| 578 | version = (major * 100) + minor; |
| 579 | |
| 580 | if (priv->use_es > 0 || (_cdk_gl_flags & CDK_GL_GLES) != 0) |
| 581 | min_ver = 200; |
| 582 | else |
| 583 | min_ver = 302; |
| 584 | |
| 585 | if (version < min_ver) |
| 586 | { |
| 587 | g_warning ("cdk_gl_context_set_required_version - GL context versions less than 3.2 are not supported."); |
| 588 | version = min_ver; |
| 589 | } |
| 590 | priv->major = version / 100; |
| 591 | priv->minor = version % 100; |
| 592 | } |
| 593 | |
| 594 | /** |
| 595 | * cdk_gl_context_get_required_version: |
| 596 | * @context: a #CdkGLContext |
| 597 | * @major: (out) (nullable): return location for the major version to request |
| 598 | * @minor: (out) (nullable): return location for the minor version to request |
| 599 | * |
| 600 | * Retrieves the major and minor version requested by calling |
| 601 | * cdk_gl_context_set_required_version(). |
| 602 | * |
| 603 | * Since: 3.16 |
| 604 | */ |
| 605 | void |
| 606 | cdk_gl_context_get_required_version (CdkGLContext *context, |
| 607 | int *major, |
| 608 | int *minor) |
| 609 | { |
| 610 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 611 | int default_major, default_minor; |
| 612 | int maj, min; |
| 613 | |
| 614 | g_return_if_fail (CDK_IS_GL_CONTEXT (context))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return; } } while (0); |
| 615 | |
| 616 | if (priv->use_es > 0 || (_cdk_gl_flags & CDK_GL_GLES) != 0) |
| 617 | { |
| 618 | default_major = 2; |
| 619 | default_minor = 0; |
| 620 | } |
| 621 | else |
| 622 | { |
| 623 | default_major = 3; |
| 624 | default_minor = 2; |
| 625 | } |
| 626 | |
| 627 | if (priv->major > 0) |
| 628 | maj = priv->major; |
| 629 | else |
| 630 | maj = default_major; |
| 631 | |
| 632 | if (priv->minor > 0) |
| 633 | min = priv->minor; |
| 634 | else |
| 635 | min = default_minor; |
| 636 | |
| 637 | if (major != NULL((void*)0)) |
| 638 | *major = maj; |
| 639 | if (minor != NULL((void*)0)) |
| 640 | *minor = min; |
| 641 | } |
| 642 | |
| 643 | /** |
| 644 | * cdk_gl_context_is_legacy: |
| 645 | * @context: a #CdkGLContext |
| 646 | * |
| 647 | * Whether the #CdkGLContext is in legacy mode or not. |
| 648 | * |
| 649 | * The #CdkGLContext must be realized before calling this function. |
| 650 | * |
| 651 | * When realizing a GL context, CDK will try to use the OpenGL 3.2 core |
| 652 | * profile; this profile removes all the OpenGL API that was deprecated |
| 653 | * prior to the 3.2 version of the specification. If the realization is |
| 654 | * successful, this function will return %FALSE. |
| 655 | * |
| 656 | * If the underlying OpenGL implementation does not support core profiles, |
| 657 | * CDK will fall back to a pre-3.2 compatibility profile, and this function |
| 658 | * will return %TRUE. |
| 659 | * |
| 660 | * You can use the value returned by this function to decide which kind |
| 661 | * of OpenGL API to use, or whether to do extension discovery, or what |
| 662 | * kind of shader programs to load. |
| 663 | * |
| 664 | * Returns: %TRUE if the GL context is in legacy mode |
| 665 | * |
| 666 | * Since: 3.20 |
| 667 | */ |
| 668 | gboolean |
| 669 | cdk_gl_context_is_legacy (CdkGLContext *context) |
| 670 | { |
| 671 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 672 | |
| 673 | g_return_val_if_fail (CDK_IS_GL_CONTEXT (context), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return ((0)); } } while ( 0); |
| 674 | g_return_val_if_fail (priv->realized, FALSE)do { if ((priv->realized)) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__)), "priv->realized"); return ((0)); } } while (0); |
| 675 | |
| 676 | return priv->is_legacy; |
| 677 | } |
| 678 | |
| 679 | void |
| 680 | cdk_gl_context_set_is_legacy (CdkGLContext *context, |
| 681 | gboolean is_legacy) |
| 682 | { |
| 683 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 684 | |
| 685 | priv->is_legacy = !!is_legacy; |
| 686 | } |
| 687 | |
| 688 | /** |
| 689 | * cdk_gl_context_set_use_es: |
| 690 | * @context: a #CdkGLContext: |
| 691 | * @use_es: whether the context should use OpenGL ES instead of OpenGL, |
| 692 | * or -1 to allow auto-detection |
| 693 | * |
| 694 | * Requests that CDK create a OpenGL ES context instead of an OpenGL one, |
| 695 | * if the platform and windowing system allows it. |
| 696 | * |
| 697 | * The @context must not have been realized. |
| 698 | * |
| 699 | * By default, CDK will attempt to automatically detect whether the |
| 700 | * underlying GL implementation is OpenGL or OpenGL ES once the @context |
| 701 | * is realized. |
| 702 | * |
| 703 | * You should check the return value of cdk_gl_context_get_use_es() after |
| 704 | * calling cdk_gl_context_realize() to decide whether to use the OpenGL or |
| 705 | * OpenGL ES API, extensions, or shaders. |
| 706 | * |
| 707 | * Since: 3.22 |
| 708 | */ |
| 709 | void |
| 710 | cdk_gl_context_set_use_es (CdkGLContext *context, |
| 711 | int use_es) |
| 712 | { |
| 713 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 714 | |
| 715 | g_return_if_fail (CDK_IS_GL_CONTEXT (context))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return; } } while (0); |
| 716 | g_return_if_fail (!priv->realized)do { if ((!priv->realized)) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__)), "!priv->realized"); return ; } } while (0); |
| 717 | |
| 718 | if (priv->use_es != use_es) |
| 719 | priv->use_es = use_es; |
| 720 | } |
| 721 | |
| 722 | /** |
| 723 | * cdk_gl_context_get_use_es: |
| 724 | * @context: a #CdkGLContext |
| 725 | * |
| 726 | * Checks whether the @context is using an OpenGL or OpenGL ES profile. |
| 727 | * |
| 728 | * Returns: %TRUE if the #CdkGLContext is using an OpenGL ES profile |
| 729 | * |
| 730 | * Since: 3.22 |
| 731 | */ |
| 732 | gboolean |
| 733 | cdk_gl_context_get_use_es (CdkGLContext *context) |
| 734 | { |
| 735 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 736 | |
| 737 | g_return_val_if_fail (CDK_IS_GL_CONTEXT (context), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return ((0)); } } while ( 0); |
| 738 | |
| 739 | if (!priv->realized) |
| 740 | return FALSE(0); |
| 741 | |
| 742 | return priv->use_es > 0; |
| 743 | } |
| 744 | |
| 745 | /** |
| 746 | * cdk_gl_context_realize: |
| 747 | * @context: a #CdkGLContext |
| 748 | * @error: return location for a #GError |
| 749 | * |
| 750 | * Realizes the given #CdkGLContext. |
| 751 | * |
| 752 | * It is safe to call this function on a realized #CdkGLContext. |
| 753 | * |
| 754 | * Returns: %TRUE if the context is realized |
| 755 | * |
| 756 | * Since: 3.16 |
| 757 | */ |
| 758 | gboolean |
| 759 | cdk_gl_context_realize (CdkGLContext *context, |
| 760 | GError **error) |
| 761 | { |
| 762 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 763 | |
| 764 | g_return_val_if_fail (CDK_IS_GL_CONTEXT (context), FALSE)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return ((0)); } } while ( 0); |
| 765 | |
| 766 | if (priv->realized) |
| 767 | return TRUE(!(0)); |
| 768 | |
| 769 | priv->realized = CDK_GL_CONTEXT_GET_CLASS (context)((((CdkGLContextClass*) (((GTypeInstance*) ((context)))->g_class ))))->realize (context, error); |
| 770 | |
| 771 | return priv->realized; |
| 772 | } |
| 773 | |
| 774 | static void |
| 775 | cdk_gl_context_check_extensions (CdkGLContext *context) |
| 776 | { |
| 777 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 778 | gboolean has_npot, has_texture_rectangle; |
| 779 | |
| 780 | if (!priv->realized) |
| 781 | return; |
| 782 | |
| 783 | if (priv->extensions_checked) |
| 784 | return; |
| 785 | |
| 786 | priv->gl_version = epoxy_gl_version (); |
| 787 | |
| 788 | if (priv->use_es < 0) |
| 789 | priv->use_es = !epoxy_is_desktop_gl (); |
| 790 | |
| 791 | if (priv->use_es) |
| 792 | { |
| 793 | has_npot = priv->gl_version >= 20; |
| 794 | has_texture_rectangle = FALSE(0); |
| 795 | |
| 796 | /* This should check for GL_NV_framebuffer_blit as well - see extension at: |
| 797 | * |
| 798 | * https://www.khronos.org/registry/gles/extensions/NV/NV_framebuffer_blit.txt |
| 799 | * |
| 800 | * for ANGLE, we can enable bit blitting if we have the |
| 801 | * GL_ANGLE_framebuffer_blit extension |
| 802 | */ |
| 803 | if (epoxy_has_gl_extension ("GL_ANGLE_framebuffer_blit")) |
| 804 | priv->has_gl_framebuffer_blit = TRUE(!(0)); |
| 805 | else |
| 806 | priv->has_gl_framebuffer_blit = FALSE(0); |
| 807 | |
| 808 | /* No OES version */ |
| 809 | priv->has_frame_terminator = FALSE(0); |
| 810 | |
| 811 | priv->has_unpack_subimage = epoxy_has_gl_extension ("GL_EXT_unpack_subimage"); |
| 812 | } |
| 813 | else |
| 814 | { |
| 815 | has_npot = priv->gl_version >= 20 || epoxy_has_gl_extension ("GL_ARB_texture_non_power_of_two"); |
| 816 | has_texture_rectangle = priv->gl_version >= 31 || epoxy_has_gl_extension ("GL_ARB_texture_rectangle"); |
| 817 | |
| 818 | priv->has_gl_framebuffer_blit = priv->gl_version >= 30 || epoxy_has_gl_extension ("GL_EXT_framebuffer_blit"); |
| 819 | priv->has_frame_terminator = epoxy_has_gl_extension ("GL_GREMEDY_frame_terminator"); |
| 820 | priv->has_unpack_subimage = TRUE(!(0)); |
| 821 | |
| 822 | /* We asked for a core profile, but we didn't get one, so we're in legacy mode */ |
| 823 | if (priv->gl_version < 32) |
| 824 | priv->is_legacy = TRUE(!(0)); |
| 825 | } |
| 826 | |
| 827 | if (!priv->use_es && G_UNLIKELY (_cdk_gl_flags & CDK_GL_TEXTURE_RECTANGLE)(_cdk_gl_flags & CDK_GL_TEXTURE_RECTANGLE)) |
| 828 | priv->use_texture_rectangle = TRUE(!(0)); |
| 829 | else if (has_npot) |
| 830 | priv->use_texture_rectangle = FALSE(0); |
| 831 | else if (has_texture_rectangle) |
| 832 | priv->use_texture_rectangle = TRUE(!(0)); |
| 833 | else |
| 834 | g_warning ("GL implementation doesn't support any form of non-power-of-two textures"); |
| 835 | |
| 836 | CDK_NOTE (OPENGL,do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 837 | g_message ("%s version: %d.%d (%s)\n"do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 838 | "* GLSL version: %s\n"do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 839 | "* Extensions checked:\n"do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 840 | " - GL_ARB_texture_non_power_of_two: %s\n"do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 841 | " - GL_ARB_texture_rectangle: %s\n"do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 842 | " - GL_EXT_framebuffer_blit: %s\n"do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 843 | " - GL_GREMEDY_frame_terminator: %s\n"do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 844 | "* Using texture rectangle: %s",do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 845 | priv->use_es ? "OpenGL ES" : "OpenGL",do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 846 | priv->gl_version / 10, priv->gl_version % 10,do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 847 | priv->is_legacy ? "legacy" : "core",do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 848 | glGetString (GL_SHADING_LANGUAGE_VERSION),do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 849 | has_npot ? "yes" : "no",do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 850 | has_texture_rectangle ? "yes" : "no",do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 851 | priv->has_gl_framebuffer_blit ? "yes" : "no",do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 852 | priv->has_frame_terminator ? "yes" : "no",do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0) |
| 853 | priv->use_texture_rectangle ? "yes" : "no"))do { if ((_cdk_debug_flags & CDK_DEBUG_OPENGL)) { g_message ("%s version: %d.%d (%s)\n" "* GLSL version: %s\n" "* Extensions checked:\n" " - GL_ARB_texture_non_power_of_two: %s\n" " - GL_ARB_texture_rectangle: %s\n" " - GL_EXT_framebuffer_blit: %s\n" " - GL_GREMEDY_frame_terminator: %s\n" "* Using texture rectangle: %s", priv->use_es ? "OpenGL ES" : "OpenGL", priv->gl_version / 10, priv->gl_version % 10 , priv->is_legacy ? "legacy" : "core", epoxy_glGetString ( 0x8B8C), has_npot ? "yes" : "no", has_texture_rectangle ? "yes" : "no", priv->has_gl_framebuffer_blit ? "yes" : "no", priv ->has_frame_terminator ? "yes" : "no", priv->use_texture_rectangle ? "yes" : "no"); }; } while (0); |
| 854 | |
| 855 | priv->extensions_checked = TRUE(!(0)); |
| 856 | } |
| 857 | |
| 858 | /** |
| 859 | * cdk_gl_context_make_current: |
| 860 | * @context: a #CdkGLContext |
| 861 | * |
| 862 | * Makes the @context the current one. |
| 863 | * |
| 864 | * Since: 3.16 |
| 865 | */ |
| 866 | void |
| 867 | cdk_gl_context_make_current (CdkGLContext *context) |
| 868 | { |
| 869 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 870 | CdkGLContext *current; |
| 871 | |
| 872 | g_return_if_fail (CDK_IS_GL_CONTEXT (context))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return; } } while (0); |
| 873 | |
| 874 | current = g_private_get (&thread_current_context); |
| 875 | if (current == context) |
| 876 | return; |
| 877 | |
| 878 | /* we need to realize the CdkGLContext if it wasn't explicitly realized */ |
| 879 | if (!priv->realized) |
| 880 | { |
| 881 | GError *error = NULL((void*)0); |
| 882 | |
| 883 | cdk_gl_context_realize (context, &error); |
| 884 | if (error != NULL((void*)0)) |
| 885 | { |
| 886 | g_critical ("Could not realize the GL context: %s", error->message); |
| 887 | g_error_free (error); |
| 888 | return; |
| 889 | } |
| 890 | } |
| 891 | |
| 892 | if (cdk_display_make_gl_context_current (priv->display, context)) |
| 893 | { |
| 894 | g_private_replace (&thread_current_context, g_object_ref (context)((__typeof__ (context)) (g_object_ref) (context))); |
| 895 | cdk_gl_context_check_extensions (context); |
| 896 | } |
| 897 | } |
| 898 | |
| 899 | /** |
| 900 | * cdk_gl_context_get_display: |
| 901 | * @context: a #CdkGLContext |
| 902 | * |
| 903 | * Retrieves the #CdkDisplay the @context is created for |
| 904 | * |
| 905 | * Returns: (nullable) (transfer none): a #CdkDisplay or %NULL |
| 906 | * |
| 907 | * Since: 3.16 |
| 908 | */ |
| 909 | CdkDisplay * |
| 910 | cdk_gl_context_get_display (CdkGLContext *context) |
| 911 | { |
| 912 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 913 | |
| 914 | g_return_val_if_fail (CDK_IS_GL_CONTEXT (context), NULL)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return (((void*)0)); } } while (0); |
| 915 | |
| 916 | return priv->display; |
| 917 | } |
| 918 | |
| 919 | /** |
| 920 | * cdk_gl_context_get_window: |
| 921 | * @context: a #CdkGLContext |
| 922 | * |
| 923 | * Retrieves the #CdkWindow used by the @context. |
| 924 | * |
| 925 | * Returns: (nullable) (transfer none): a #CdkWindow or %NULL |
| 926 | * |
| 927 | * Since: 3.16 |
| 928 | */ |
| 929 | CdkWindow * |
| 930 | cdk_gl_context_get_window (CdkGLContext *context) |
| 931 | { |
| 932 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 933 | |
| 934 | g_return_val_if_fail (CDK_IS_GL_CONTEXT (context), NULL)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return (((void*)0)); } } while (0); |
| 935 | |
| 936 | return priv->window; |
| 937 | } |
| 938 | |
| 939 | /** |
| 940 | * cdk_gl_context_get_shared_context: |
| 941 | * @context: a #CdkGLContext |
| 942 | * |
| 943 | * Retrieves the #CdkGLContext that this @context share data with. |
| 944 | * |
| 945 | * Returns: (nullable) (transfer none): a #CdkGLContext or %NULL |
| 946 | * |
| 947 | * Since: 3.16 |
| 948 | */ |
| 949 | CdkGLContext * |
| 950 | cdk_gl_context_get_shared_context (CdkGLContext *context) |
| 951 | { |
| 952 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 953 | |
| 954 | g_return_val_if_fail (CDK_IS_GL_CONTEXT (context), NULL)do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return (((void*)0)); } } while (0); |
| 955 | |
| 956 | return priv->shared_context; |
| 957 | } |
| 958 | |
| 959 | /** |
| 960 | * cdk_gl_context_get_version: |
| 961 | * @context: a #CdkGLContext |
| 962 | * @major: (out): return location for the major version |
| 963 | * @minor: (out): return location for the minor version |
| 964 | * |
| 965 | * Retrieves the OpenGL version of the @context. |
| 966 | * |
| 967 | * The @context must be realized prior to calling this function. |
| 968 | * |
| 969 | * Since: 3.16 |
| 970 | */ |
| 971 | void |
| 972 | cdk_gl_context_get_version (CdkGLContext *context, |
| 973 | int *major, |
| 974 | int *minor) |
| 975 | { |
| 976 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (context); |
| 977 | |
| 978 | g_return_if_fail (CDK_IS_GL_CONTEXT (context))do { if (((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((context)); GType __t = ((cdk_gl_context_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; })))))) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__ )), "CDK_IS_GL_CONTEXT (context)"); return; } } while (0); |
| 979 | g_return_if_fail (priv->realized)do { if ((priv->realized)) { } else { g_return_if_fail_warning ("Cdk", ((const char*) (__func__)), "priv->realized"); return ; } } while (0); |
| 980 | |
| 981 | if (major != NULL((void*)0)) |
| 982 | *major = priv->gl_version / 10; |
| 983 | if (minor != NULL((void*)0)) |
| 984 | *minor = priv->gl_version % 10; |
| 985 | } |
| 986 | |
| 987 | /** |
| 988 | * cdk_gl_context_clear_current: |
| 989 | * |
| 990 | * Clears the current #CdkGLContext. |
| 991 | * |
| 992 | * Any OpenGL call after this function returns will be ignored |
| 993 | * until cdk_gl_context_make_current() is called. |
| 994 | * |
| 995 | * Since: 3.16 |
| 996 | */ |
| 997 | void |
| 998 | cdk_gl_context_clear_current (void) |
| 999 | { |
| 1000 | CdkGLContext *current; |
| 1001 | |
| 1002 | current = g_private_get (&thread_current_context); |
| 1003 | if (current != NULL((void*)0)) |
| 1004 | { |
| 1005 | CdkGLContextPrivate *priv = cdk_gl_context_get_instance_private (current); |
| 1006 | |
| 1007 | if (cdk_display_make_gl_context_current (priv->display, NULL((void*)0))) |
| 1008 | g_private_replace (&thread_current_context, NULL((void*)0)); |
| 1009 | } |
| 1010 | } |
| 1011 | |
| 1012 | /** |
| 1013 | * cdk_gl_context_get_current: |
| 1014 | * |
| 1015 | * Retrieves the current #CdkGLContext. |
| 1016 | * |
| 1017 | * Returns: (nullable) (transfer none): the current #CdkGLContext, or %NULL |
| 1018 | * |
| 1019 | * Since: 3.16 |
| 1020 | */ |
| 1021 | CdkGLContext * |
| 1022 | cdk_gl_context_get_current (void) |
| 1023 | { |
| 1024 | CdkGLContext *current; |
| 1025 | |
| 1026 | current = g_private_get (&thread_current_context); |
| 1027 | |
| 1028 | return current; |
| 1029 | } |
| 1030 | |
| 1031 | /** |
| 1032 | * cdk_gl_get_flags: |
| 1033 | * |
| 1034 | * Returns the currently active GL flags. |
| 1035 | * |
| 1036 | * Returns: the GL flags |
| 1037 | * |
| 1038 | * Since: 3.16 |
| 1039 | */ |
| 1040 | CdkGLFlags |
| 1041 | cdk_gl_get_flags (void) |
| 1042 | { |
| 1043 | return _cdk_gl_flags; |
| 1044 | } |
| 1045 | |
| 1046 | /** |
| 1047 | * cdk_gl_set_flags: |
| 1048 | * @flags: #CdkGLFlags to set |
| 1049 | * |
| 1050 | * Sets GL flags. |
| 1051 | * |
| 1052 | * Since: 3.16 |
| 1053 | */ |
| 1054 | void |
| 1055 | cdk_gl_set_flags (CdkGLFlags flags) |
| 1056 | { |
| 1057 | _cdk_gl_flags = flags; |
| 1058 | } |