/* should only be called once on initialization */
void
dropbox_client_setup(DropboxClient *dc) {
caja_dropbox_hooks_setup(&(dc->hookserv));
dropbox_command_client_setup(&(dc->dcc));
g_hook_list_init(&(dc->ondisconnect_hooklist), sizeof(GHook));
g_hook_list_init(&(dc->onconnect_hooklist), sizeof(GHook));
dc->hook_disconnect_called = dc->command_disconnect_called = FALSE;
dc->hook_connect_called = dc->command_connect_called = FALSE;
caja_dropbox_hooks_add_on_connect_hook(&(dc->hookserv),
(DropboxHookClientConnectHook)
hook_on_connect, dc);
dropbox_command_client_add_on_connect_hook(&(dc->dcc),
(DropboxCommandClientConnectHook)
command_on_connect, dc);
caja_dropbox_hooks_add_on_disconnect_hook(&(dc->hookserv),
(DropboxHookClientConnectHook)
hook_on_disconnect, dc);
dropbox_command_client_add_on_disconnect_hook(&(dc->dcc),
(DropboxCommandClientConnectHook)
command_on_disconnect, dc);
}
/* should only be called once on initialization */
void
dropbox_command_client_setup(DropboxCommandClient *dcc) {
dcc->command_queue = g_async_queue_new();
dcc->command_connected_mutex = g_mutex_new();
dcc->command_connected = FALSE;
dcc->ca_hooklist = NULL;
g_hook_list_init(&(dcc->ondisconnect_hooklist), sizeof(GHook));
g_hook_list_init(&(dcc->onconnect_hooklist), sizeof(GHook));
}
void
nautilus_dropbox_hooks_setup(NautilusDropboxHookserv *hookserv) {
hookserv->dispatch_table = g_hash_table_new_full((GHashFunc) g_str_hash,
(GEqualFunc) g_str_equal,
g_free, g_free);
hookserv->connected = FALSE;
g_hook_list_init(&(hookserv->ondisconnect_hooklist), sizeof(GHook));
g_hook_list_init(&(hookserv->onconnect_hooklist), sizeof(GHook));
}
void
gnc_gconf_general_register_cb (const gchar *key,
GncGconfGeneralCb func,
gpointer user_data)
{
GHookList *hook_list;
GHook *hook;
g_once(&gcb_init_once, gcb_init, NULL);
hook_list = g_hash_table_lookup(gcb_callback_hash, key);
if (hook_list == NULL)
{
hook_list = g_malloc(sizeof(GHookList));
g_hook_list_init(hook_list, sizeof(GHook));
g_hash_table_insert(gcb_callback_hash, (gpointer)key, hook_list);
}
hook = g_hook_find_func_data(hook_list, TRUE, func, user_data);
if (hook != NULL)
{
return;
}
hook = g_hook_alloc(hook_list);
hook->func = func;
hook->data = user_data;
g_hook_append(hook_list, hook);
}
/*
* initiate a gfal's context with default parameters for use
*/
gfal2_context_t gfal_initG (GError** err)
{
GError* tmp_err=NULL;
gfal2_context_t handle = g_new0(struct gfal_handle_,1);// clear allocation of the struct and set defautl options
if(handle == NULL){
errno= ENOMEM;
g_set_error(err, gfal2_get_plugins_quark(), ENOMEM, "[gfal_initG] bad allocation, no more memory free");
return NULL;
}
handle->plugin_opt.plugin_number= 0;
if((handle->conf = gfal_conf_new(&tmp_err)) && !tmp_err){
// load and instanciate all the plugins
gfal_plugins_instance(handle, &tmp_err);
// cancel logic init
handle->cancel = FALSE;
handle->running_ops = 0;
handle->mux_cancel = g_mutex_new();
g_hook_list_init(&handle->cancel_hooks, sizeof(GHook));
}
if(tmp_err){
if (handle && handle->conf)
gfal_conf_delete(handle->conf);
g_free(handle);
handle = NULL;
}
G_RETURN_ERR(handle, tmp_err, err);
}
CoglPangoGlyphCache *
cogl_pango_glyph_cache_new (CoglContext *ctx,
gboolean use_mipmapping)
{
CoglPangoGlyphCache *cache;
cache = g_malloc (sizeof (CoglPangoGlyphCache));
/* Note: as a rule we don't take references to a CoglContext
* internally since */
cache->ctx = ctx;
cache->hash_table = g_hash_table_new_full
(cogl_pango_glyph_cache_hash_func,
cogl_pango_glyph_cache_equal_func,
(GDestroyNotify) cogl_pango_glyph_cache_key_free,
(GDestroyNotify) cogl_pango_glyph_cache_value_free);
cache->atlases = NULL;
g_hook_list_init (&cache->reorganize_callbacks, sizeof (GHook));
cache->has_dirty_glyphs = FALSE;
cache->using_global_atlas = FALSE;
cache->use_mipmapping = use_mipmapping;
return cache;
}
CoglAtlas *
_cogl_atlas_new (CoglPixelFormat texture_format,
CoglAtlasFlags flags,
CoglAtlasUpdatePositionCallback update_position_cb)
{
CoglAtlas *atlas = g_new (CoglAtlas, 1);
atlas->update_position_cb = update_position_cb;
atlas->map = NULL;
atlas->texture = NULL;
atlas->flags = flags;
atlas->texture_format = texture_format;
g_hook_list_init (&atlas->pre_reorganize_callbacks, sizeof (GHook));
g_hook_list_init (&atlas->post_reorganize_callbacks, sizeof (GHook));
return _cogl_atlas_object_new (atlas);
}
static gpointer
gcb_init (gpointer unused)
{
gcb_callback_hash = g_hash_table_new(g_str_hash, g_str_equal);
gcb_final_hook_list = g_malloc(sizeof(GHookList));
g_hook_list_init(gcb_final_hook_list, sizeof(GHook));
return NULL;
}
static void
kiro_sb_init (KiroSb *self)
{
g_return_if_fail (self != NULL);
KiroSbPrivate *priv = KIRO_SB_GET_PRIVATE (self);
priv->initialized = 0;
priv->trb = NULL;
priv->server = NULL;
priv->client = NULL;
priv->freeze = FALSE;
g_hook_list_init (&(priv->callbacks), sizeof (GHook));
}
gchar *
gnc_hook_create (const gchar *name, gint num_args, const gchar *desc)
{
GncHook *hook_list;
g_return_val_if_fail(name != NULL, NULL);
g_return_val_if_fail(num_args <= 1, NULL);
g_return_val_if_fail(desc != NULL, NULL);
ENTER("name %s", name);
if (gnc_hooks_list == NULL)
{
gnc_hooks_list = g_hash_table_new(g_str_hash, g_str_equal);
/* If we're not initialized then initialize now */
if (!gnc_hooks_initialized)
gnc_hooks_init();
}
hook_list = g_hash_table_lookup(gnc_hooks_list, name);
if (hook_list)
{
LEAVE("List %s(%p) already exists", name, hook_list);
return((gchar*)name);
}
hook_list = new GncHook;//g_new0(GncHook, 1);
hook_list->desc = g_strdup(desc);
hook_list->c_danglers = g_malloc(sizeof(GHookList));
g_hook_list_init(hook_list->c_danglers, sizeof(GHook));
hook_list->scm_danglers = g_malloc(sizeof(GHookList));
hook_list->num_args = num_args;
g_hook_list_init(hook_list->scm_danglers, sizeof(GHook));
g_hash_table_insert(gnc_hooks_list, (gchar *)name, hook_list);
LEAVE("created list %s(%p)", name, hook_list);
return (gchar *)name;
}
static DeskmenuObject
*deskmenu_object_init (void) {
DeskmenuObject *dm_object = g_slice_new0 (DeskmenuObject);
dm_object->menu = NULL;
dm_object->current_menu = NULL;
dm_object->current_item = NULL;
dm_object->make_from_pipe = FALSE;
dm_object->pin_items = NULL;
dm_object->show_hooks = g_slice_new0 (GHookList);
g_hook_list_init (dm_object->show_hooks, sizeof (GHook));
return dm_object;
}
guint
g_source_add (gint priority,
gboolean can_recurse,
GSourceFuncs *funcs,
gpointer source_data,
gpointer user_data,
GDestroyNotify notify)
{
guint return_val;
GSource *source;
G_LOCK (main_loop);
if (!source_list.is_setup)
{
g_hook_list_init (&source_list, sizeof (GSource));
source_list.hook_destroy = G_HOOK_DEFERRED_DESTROY;
source_list.hook_free = g_source_destroy_func;
}
source = (GSource*) g_hook_alloc (&source_list);
source->priority = priority;
source->source_data = source_data;
source->hook.func = funcs;
source->hook.data = user_data;
source->hook.destroy = notify;
g_hook_insert_sorted (&source_list,
(GHook *)source,
g_source_compare);
if (can_recurse)
source->hook.flags |= G_SOURCE_CAN_RECURSE;
return_val = source->hook.hook_id;
#ifdef G_THREADS_ENABLED
/* Now wake up the main loop if it is waiting in the poll() */
g_main_wakeup ();
#endif
G_UNLOCK (main_loop);
return return_val;
}
void
qof_session_add_close_hook (GFunc fn, gpointer data)
{
GHook *hook;
if (session_closed_hooks == NULL)
{
session_closed_hooks = static_cast<GHookList*>(malloc(sizeof(GHookList))); /* LEAKED */
g_hook_list_init (session_closed_hooks, sizeof(GHook));
}
hook = g_hook_alloc(session_closed_hooks);
if (!hook)
return;
hook->func = reinterpret_cast<void*>(fn);
hook->data = data;
g_hook_append(session_closed_hooks, hook);
}
void
qof_session_add_close_hook (GFunc fn, gpointer data)
{
GHook *hook;
if (session_closed_hooks == NULL)
{
session_closed_hooks = malloc(sizeof(GHookList)); /* LEAKED */
g_hook_list_init (session_closed_hooks, sizeof(GHook));
}
hook = g_hook_alloc(session_closed_hooks);
if (!hook)
return;
hook->func = (GHookFunc)fn;
hook->data = data;
g_hook_append(session_closed_hooks, hook);
}
void
gth_hook_register (const char *name,
int n_args)
{
GthHook *hook;
g_return_if_fail (name != NULL);
g_return_if_fail ((n_args >= 0) || (n_args <= 4));
if (g_hash_table_lookup (hooks, name) != NULL) {
g_warning ("hook '%s' already registered", name);
return;
}
hook = g_new0 (GthHook, 1);
hook->list = g_new (GHookList, 1);
g_hook_list_init (hook->list, sizeof (GthHookCallback));
hook->n_args = n_args;
g_hash_table_insert (hooks, g_strdup (name), hook);
}
void prefs_register(
const gchar * name,
enum prefs_type type,
const gchar * description,
prefs_validator_func * validator_func,
gpointer validator_user_data)
{
struct prefs_value * value;
g_assert(name && description);
g_assert(prefs_hash != NULL);
/* setup preference value struct */
value = g_new(struct prefs_value, 1);
value->description = g_strdup(description);
value->type = type;
switch(type) {
case PREFS_TYPE_BOOL:
value->value.boolean = FALSE;
break;
case PREFS_TYPE_STR:
value->value.string = g_strdup("");
break;
case PREFS_TYPE_UINT:
value->value.integer = 0;
break;
case PREFS_TYPE_LIST:
value->value.list = NULL;
break;
}
value->validator_func = validator_func;
value->validator_user_data = validator_user_data;
g_hook_list_init(&value->change_hook, sizeof(GHook));
/* add it into the prefs hash */
g_hash_table_insert(prefs_hash, g_strdup(name), value);
}
/**
* Add an InitFunc to the hooklist with the name 'name'
*/
void
NamedInitFuncAdd(const char *name, InitFuncPriority priority, InitFunc func, const char *func_name)
{
if (!namedInitFuncs)
{
namedInitFuncs = g_hash_table_new(g_str_hash, g_str_equal);
if (!namedInitFuncs)
{
g_error("%s: Out of memory on initialization.\n", __FUNCTION__);
abort();
}
}
if (g_hash_table_lookup(namedInitFuncs, (gconstpointer)name) == NULL)
{
GNamedHookList *namedHookList = malloc(sizeof (GNamedHookList));
if (!namedHookList)
{
g_error("%s: Out of memory on initialization.\n", __FUNCTION__);
abort();
}
g_hook_list_init((GHookList*)namedHookList, sizeof(GPrioritizedHook));
namedHookList->name = name;
g_hash_table_insert(namedInitFuncs, (char*)name, namedHookList);
}
GHookList *hookList = (GHookList*)g_hash_table_lookup(namedInitFuncs, (gconstpointer)name);
GPrioritizedHook *hook = (GPrioritizedHook*)g_hook_alloc(hookList);
hook->base.data = func;
hook->base.func = HookInit;
hook->priority = priority;
hook->func_name = func_name;
g_hook_insert_sorted(hookList, (GHook*)hook, GPrioritizedHookCompare);
}
CoglPangoGlyphCache *
cogl_pango_glyph_cache_new (CoglBool use_mipmapping)
{
CoglPangoGlyphCache *cache;
cache = g_malloc (sizeof (CoglPangoGlyphCache));
cache->hash_table = g_hash_table_new_full
(cogl_pango_glyph_cache_hash_func,
cogl_pango_glyph_cache_equal_func,
(GDestroyNotify) cogl_pango_glyph_cache_key_free,
(GDestroyNotify) cogl_pango_glyph_cache_value_free);
cache->atlases = NULL;
g_hook_list_init (&cache->reorganize_callbacks, sizeof (GHook));
cache->has_dirty_glyphs = FALSE;
cache->using_global_atlas = FALSE;
cache->use_mipmapping = use_mipmapping;
return cache;
}
/* For reference: There was some deliberation over whether to have a
* constructor that could throw an exception but looking at standard
* practices with several high level OO languages including python, C++,
* C# Java and Ruby they all support exceptions in constructors and the
* general consensus appears to be that throwing an exception is neater
* than successfully constructing with an internal error status that
* would then have to be explicitly checked via some form of ::is_ok()
* method.
*/
CoglContext *
cogl_context_new (CoglDisplay *display,
CoglError **error)
{
CoglContext *context;
uint8_t white_pixel[] = { 0xff, 0xff, 0xff, 0xff };
CoglBitmap *white_pixel_bitmap;
const CoglWinsysVtable *winsys;
int i;
CoglError *internal_error = NULL;
_cogl_init ();
#ifdef COGL_ENABLE_PROFILE
/* We need to be absolutely sure that uprof has been initialized
* before calling _cogl_uprof_init. uprof_init (NULL, NULL)
* will be a NOP if it has been initialized but it will also
* mean subsequent parsing of the UProf GOptionGroup will have no
* affect.
*
* Sadly GOptionGroup based library initialization is extremely
* fragile by design because GOptionGroups have no notion of
* dependencies and so the order things are initialized isn't
* currently under tight control.
*/
uprof_init (NULL, NULL);
_cogl_uprof_init ();
#endif
/* Allocate context memory */
context = g_malloc0 (sizeof (CoglContext));
/* Convert the context into an object immediately in case any of the
code below wants to verify that the context pointer is a valid
object */
_cogl_context_object_new (context);
/* XXX: Gross hack!
* Currently everything in Cogl just assumes there is a default
* context which it can access via _COGL_GET_CONTEXT() including
* code used to construct a CoglContext. Until all of that code
* has been updated to take an explicit context argument we have
* to immediately make our pointer the default context.
*/
_cogl_context = context;
/* Init default values */
memset (context->features, 0, sizeof (context->features));
context->feature_flags = 0;
memset (context->private_features, 0, sizeof (context->private_features));
context->rectangle_state = COGL_WINSYS_RECTANGLE_STATE_UNKNOWN;
memset (context->winsys_features, 0, sizeof (context->winsys_features));
if (!display)
{
CoglRenderer *renderer = cogl_renderer_new ();
if (!cogl_renderer_connect (renderer, error))
{
g_free (context);
return NULL;
}
display = cogl_display_new (renderer, NULL);
cogl_object_unref(renderer);
}
else
cogl_object_ref (display);
if (!cogl_display_setup (display, error))
{
cogl_object_unref (display);
g_free (context);
return NULL;
}
context->display = display;
/* This is duplicated data, but it's much more convenient to have
the driver attached to the context and the value is accessed a
lot throughout Cogl */
context->driver = display->renderer->driver;
/* Again this is duplicated data, but it convenient to be able
* access these from the context. */
context->driver_vtable = display->renderer->driver_vtable;
context->texture_driver = display->renderer->texture_driver;
for (i = 0; i < G_N_ELEMENTS (context->private_features); i++)
context->private_features[i] |= display->renderer->private_features[i];
winsys = _cogl_context_get_winsys (context);
if (!winsys->context_init (context, error))
{
cogl_object_unref (display);
g_free (context);
return NULL;
}
context->attribute_name_states_hash =
g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
context->attribute_name_index_map = NULL;
context->n_attribute_names = 0;
/* The "cogl_color_in" attribute needs a deterministic name_index
* so we make sure it's the first attribute name we register */
_cogl_attribute_register_attribute_name (context, "cogl_color_in");
context->uniform_names =
g_ptr_array_new_with_free_func ((GDestroyNotify) g_free);
context->uniform_name_hash = g_hash_table_new (g_str_hash, g_str_equal);
context->n_uniform_names = 0;
/* Initialise the driver specific state */
_cogl_init_feature_overrides (context);
/* XXX: ONGOING BUG: Intel viewport scissor
*
* Intel gen6 drivers don't currently correctly handle offset
* viewports, since primitives aren't clipped within the bounds of
* the viewport. To workaround this we push our own clip for the
* viewport that will use scissoring to ensure we clip as expected.
*
* TODO: file a bug upstream!
*/
if (context->gpu.driver_package == COGL_GPU_INFO_DRIVER_PACKAGE_MESA &&
context->gpu.architecture == COGL_GPU_INFO_ARCHITECTURE_SANDYBRIDGE &&
!getenv ("COGL_DISABLE_INTEL_VIEWPORT_SCISSORT_WORKAROUND"))
context->needs_viewport_scissor_workaround = TRUE;
else
context->needs_viewport_scissor_workaround = FALSE;
context->sampler_cache = _cogl_sampler_cache_new (context);
_cogl_pipeline_init_default_pipeline ();
_cogl_pipeline_init_default_layers ();
_cogl_pipeline_init_state_hash_functions ();
_cogl_pipeline_init_layer_state_hash_functions ();
context->current_clip_stack_valid = FALSE;
context->current_clip_stack = NULL;
context->legacy_backface_culling_enabled = FALSE;
cogl_matrix_init_identity (&context->identity_matrix);
cogl_matrix_init_identity (&context->y_flip_matrix);
cogl_matrix_scale (&context->y_flip_matrix, 1, -1, 1);
context->flushed_matrix_mode = COGL_MATRIX_MODELVIEW;
context->texture_units =
g_array_new (FALSE, FALSE, sizeof (CoglTextureUnit));
if (_cogl_has_private_feature (context, COGL_PRIVATE_FEATURE_ANY_GL))
{
/* See cogl-pipeline.c for more details about why we leave texture unit 1
* active by default... */
context->active_texture_unit = 1;
GE (context, glActiveTexture (GL_TEXTURE1));
}
context->legacy_fog_state.enabled = FALSE;
context->opaque_color_pipeline = cogl_pipeline_new (context);
context->blended_color_pipeline = cogl_pipeline_new (context);
context->texture_pipeline = cogl_pipeline_new (context);
context->codegen_header_buffer = g_string_new ("");
context->codegen_source_buffer = g_string_new ("");
context->codegen_boilerplate_buffer = g_string_new ("");
context->source_stack = NULL;
context->legacy_state_set = 0;
context->default_gl_texture_2d_tex = NULL;
context->default_gl_texture_3d_tex = NULL;
context->default_gl_texture_rect_tex = NULL;
context->framebuffers = NULL;
context->current_draw_buffer = NULL;
context->current_read_buffer = NULL;
context->current_draw_buffer_state_flushed = 0;
context->current_draw_buffer_changes = COGL_FRAMEBUFFER_STATE_ALL;
context->swap_callback_closures =
g_hash_table_new (g_direct_hash, g_direct_equal);
_cogl_list_init (&context->onscreen_events_queue);
_cogl_list_init (&context->onscreen_dirty_queue);
g_queue_init (&context->gles2_context_stack);
context->journal_flush_attributes_array =
g_array_new (TRUE, FALSE, sizeof (CoglAttribute *));
context->journal_clip_bounds = NULL;
context->polygon_vertices = g_array_new (FALSE, FALSE, sizeof (float));
context->current_pipeline = NULL;
context->current_pipeline_changes_since_flush = 0;
context->current_pipeline_with_color_attrib = FALSE;
_cogl_bitmask_init (&context->enabled_builtin_attributes);
_cogl_bitmask_init (&context->enable_builtin_attributes_tmp);
_cogl_bitmask_init (&context->enabled_texcoord_attributes);
_cogl_bitmask_init (&context->enable_texcoord_attributes_tmp);
_cogl_bitmask_init (&context->enabled_custom_attributes);
_cogl_bitmask_init (&context->enable_custom_attributes_tmp);
_cogl_bitmask_init (&context->changed_bits_tmp);
context->max_texture_units = -1;
context->max_activateable_texture_units = -1;
context->current_fragment_program_type = COGL_PIPELINE_PROGRAM_TYPE_GLSL;
context->current_vertex_program_type = COGL_PIPELINE_PROGRAM_TYPE_GLSL;
context->current_gl_program = 0;
context->current_gl_dither_enabled = TRUE;
context->current_gl_color_mask = COGL_COLOR_MASK_ALL;
context->gl_blend_enable_cache = FALSE;
context->depth_test_enabled_cache = FALSE;
context->depth_test_function_cache = COGL_DEPTH_TEST_FUNCTION_LESS;
context->depth_writing_enabled_cache = TRUE;
context->depth_range_near_cache = 0;
context->depth_range_far_cache = 1;
context->legacy_depth_test_enabled = FALSE;
context->pipeline_cache = _cogl_pipeline_cache_new ();
for (i = 0; i < COGL_BUFFER_BIND_TARGET_COUNT; i++)
context->current_buffer[i] = NULL;
context->window_buffer = NULL;
context->framebuffer_stack = _cogl_create_framebuffer_stack ();
/* XXX: In this case the Clutter backend is still responsible for
* the OpenGL binding API and for creating onscreen framebuffers and
* so we have to add a dummy framebuffer to represent the backend
* owned window... */
if (_cogl_context_get_winsys (context) == _cogl_winsys_stub_get_vtable ())
{
CoglOnscreen *window = _cogl_onscreen_new ();
cogl_set_framebuffer (COGL_FRAMEBUFFER (window));
cogl_object_unref (COGL_FRAMEBUFFER (window));
}
context->current_path = NULL;
context->stencil_pipeline = cogl_pipeline_new (context);
context->in_begin_gl_block = FALSE;
context->quad_buffer_indices_byte = NULL;
context->quad_buffer_indices = NULL;
context->quad_buffer_indices_len = 0;
context->rectangle_byte_indices = NULL;
context->rectangle_short_indices = NULL;
context->rectangle_short_indices_len = 0;
context->texture_download_pipeline = NULL;
context->blit_texture_pipeline = NULL;
#ifdef HAVE_COGL_GL
if (_cogl_has_private_feature (context, COGL_PRIVATE_FEATURE_ALPHA_TEST))
/* The default for GL_ALPHA_TEST is to always pass which is equivalent to
* the test being disabled therefore we assume that for all drivers there
* will be no performance impact if we always leave the test enabled which
* makes things a bit simpler for us. Under GLES2 the alpha test is
* implemented in the fragment shader so there is no enable for it
*/
GE (context, glEnable (GL_ALPHA_TEST));
if ((context->driver == COGL_DRIVER_GL3))
{
GLuint vertex_array;
/* In a forward compatible context, GL 3 doesn't support rendering
* using the default vertex array object. Cogl doesn't use vertex
* array objects yet so for now we just create a dummy array
* object that we will use as our own default object. Eventually
* it could be good to attach the vertex array objects to
* CoglPrimitives */
context->glGenVertexArrays (1, &vertex_array);
context->glBindVertexArray (vertex_array);
}
#endif
context->current_modelview_entry = NULL;
context->current_projection_entry = NULL;
_cogl_matrix_entry_identity_init (&context->identity_entry);
_cogl_matrix_entry_cache_init (&context->builtin_flushed_projection);
_cogl_matrix_entry_cache_init (&context->builtin_flushed_modelview);
/* Create default textures used for fall backs */
context->default_gl_texture_2d_tex =
cogl_texture_2d_new_from_data (context,
1, 1,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
0, /* rowstride */
white_pixel,
NULL); /* abort on error */
/* If 3D or rectangle textures aren't supported then these will
* return errors that we can simply ignore. */
internal_error = NULL;
context->default_gl_texture_3d_tex =
cogl_texture_3d_new_from_data (context,
1, 1, 1, /* width, height, depth */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
0, /* rowstride */
0, /* image stride */
white_pixel,
&internal_error);
if (internal_error)
cogl_error_free (internal_error);
/* TODO: add cogl_texture_rectangle_new_from_data() */
white_pixel_bitmap =
cogl_bitmap_new_for_data (context,
1, 1, /* width/height */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
4, /* rowstride */
white_pixel);
internal_error = NULL;
context->default_gl_texture_rect_tex =
cogl_texture_rectangle_new_from_bitmap (white_pixel_bitmap);
/* XXX: we need to allocate the texture now because the white_pixel
* data is on the stack */
cogl_texture_allocate (COGL_TEXTURE (context->default_gl_texture_rect_tex),
&internal_error);
if (internal_error)
cogl_error_free (internal_error);
cogl_object_unref (white_pixel_bitmap);
cogl_push_source (context->opaque_color_pipeline);
context->atlases = NULL;
g_hook_list_init (&context->atlas_reorganize_callbacks, sizeof (GHook));
context->buffer_map_fallback_array = g_byte_array_new ();
context->buffer_map_fallback_in_use = FALSE;
/* As far as I can tell, GL_POINT_SPRITE doesn't have any effect
unless GL_COORD_REPLACE is enabled for an individual layer.
Therefore it seems like it should be ok to just leave it enabled
all the time instead of having to have a set property on each
pipeline to track whether any layers have point sprite coords
enabled. We don't need to do this for GL3 or GLES2 because point
sprites are handled using a builtin varying in the shader. */
if (_cogl_has_private_feature (context, COGL_PRIVATE_FEATURE_GL_FIXED) &&
cogl_has_feature (context, COGL_FEATURE_ID_POINT_SPRITE))
GE (context, glEnable (GL_POINT_SPRITE));
_cogl_list_init (&context->fences);
return context;
}
/* For reference: There was some deliberation over whether to have a
* constructor that could throw an exception but looking at standard
* practices with several high level OO languages including python, C++,
* C# Java and Ruby they all support exceptions in constructors and the
* general consensus appears to be that throwing an exception is neater
* than successfully constructing with an internal error status that
* would then have to be explicitly checked via some form of ::is_ok()
* method.
*/
CoglContext *
cogl_context_new (CoglDisplay *display,
GError **error)
{
CoglContext *context;
GLubyte default_texture_data[] = { 0xff, 0xff, 0xff, 0x0 };
CoglBitmap *default_texture_bitmap;
const CoglWinsysVtable *winsys;
int i;
_cogl_init ();
#ifdef COGL_ENABLE_PROFILE
/* We need to be absolutely sure that uprof has been initialized
* before calling _cogl_uprof_init. uprof_init (NULL, NULL)
* will be a NOP if it has been initialized but it will also
* mean subsequent parsing of the UProf GOptionGroup will have no
* affect.
*
* Sadly GOptionGroup based library initialization is extremely
* fragile by design because GOptionGroups have no notion of
* dependencies and so the order things are initialized isn't
* currently under tight control.
*/
uprof_init (NULL, NULL);
_cogl_uprof_init ();
#endif
/* Allocate context memory */
context = g_malloc0 (sizeof (CoglContext));
/* Convert the context into an object immediately in case any of the
code below wants to verify that the context pointer is a valid
object */
_cogl_context_object_new (context);
/* XXX: Gross hack!
* Currently everything in Cogl just assumes there is a default
* context which it can access via _COGL_GET_CONTEXT() including
* code used to construct a CoglContext. Until all of that code
* has been updated to take an explicit context argument we have
* to immediately make our pointer the default context.
*/
_context = context;
/* Init default values */
memset (context->features, 0, sizeof (context->features));
context->feature_flags = 0;
context->private_feature_flags = 0;
context->texture_types = NULL;
context->buffer_types = NULL;
context->rectangle_state = COGL_WINSYS_RECTANGLE_STATE_UNKNOWN;
memset (context->winsys_features, 0, sizeof (context->winsys_features));
if (!display)
{
CoglRenderer *renderer = cogl_renderer_new ();
if (!cogl_renderer_connect (renderer, error))
{
g_free (context);
return NULL;
}
display = cogl_display_new (renderer, NULL);
}
else
cogl_object_ref (display);
if (!cogl_display_setup (display, error))
{
cogl_object_unref (display);
g_free (context);
return NULL;
}
context->display = display;
/* This is duplicated data, but it's much more convenient to have
the driver attached to the context and the value is accessed a
lot throughout Cogl */
context->driver = display->renderer->driver;
switch (context->driver)
{
#ifdef HAVE_COGL_GL
case COGL_DRIVER_GL:
context->driver_vtable = &_cogl_driver_gl;
context->texture_driver = &_cogl_texture_driver_gl;
break;
#endif
#if defined (HAVE_COGL_GLES) || defined (HAVE_COGL_GLES2)
case COGL_DRIVER_GLES1:
case COGL_DRIVER_GLES2:
context->driver_vtable = &_cogl_driver_gles;
context->texture_driver = &_cogl_texture_driver_gles;
break;
#endif
default:
g_assert_not_reached ();
}
winsys = _cogl_context_get_winsys (context);
if (!winsys->context_init (context, error))
{
cogl_object_unref (display);
g_free (context);
return NULL;
}
context->attribute_name_states_hash =
g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
context->attribute_name_index_map = NULL;
context->n_attribute_names = 0;
/* The "cogl_color_in" attribute needs a deterministic name_index
* so we make sure it's the first attribute name we register */
_cogl_attribute_register_attribute_name (context, "cogl_color_in");
context->uniform_names =
g_ptr_array_new_with_free_func ((GDestroyNotify) g_free);
context->uniform_name_hash = g_hash_table_new (g_str_hash, g_str_equal);
context->n_uniform_names = 0;
/* Initialise the driver specific state */
_cogl_init_feature_overrides (context);
_context->sampler_cache = _cogl_sampler_cache_new (_context);
_cogl_pipeline_init_default_pipeline ();
_cogl_pipeline_init_default_layers ();
_cogl_pipeline_init_state_hash_functions ();
_cogl_pipeline_init_layer_state_hash_functions ();
context->current_clip_stack_valid = FALSE;
context->current_clip_stack = NULL;
cogl_matrix_init_identity (&context->identity_matrix);
cogl_matrix_init_identity (&context->y_flip_matrix);
cogl_matrix_scale (&context->y_flip_matrix, 1, -1, 1);
context->flushed_matrix_mode = COGL_MATRIX_MODELVIEW;
context->texture_units =
g_array_new (FALSE, FALSE, sizeof (CoglTextureUnit));
/* See cogl-pipeline.c for more details about why we leave texture unit 1
* active by default... */
context->active_texture_unit = 1;
GE (context, glActiveTexture (GL_TEXTURE1));
context->opaque_color_pipeline = cogl_pipeline_new (context);
context->blended_color_pipeline = cogl_pipeline_new (context);
context->texture_pipeline = cogl_pipeline_new (context);
context->codegen_header_buffer = g_string_new ("");
context->codegen_source_buffer = g_string_new ("");
context->default_gl_texture_2d_tex = NULL;
context->default_gl_texture_3d_tex = NULL;
context->default_gl_texture_rect_tex = NULL;
context->framebuffers = NULL;
context->current_draw_buffer = NULL;
context->current_read_buffer = NULL;
context->current_draw_buffer_state_flushed = 0;
context->current_draw_buffer_changes = COGL_FRAMEBUFFER_STATE_ALL;
g_queue_init (&context->gles2_context_stack);
context->journal_flush_attributes_array =
g_array_new (TRUE, FALSE, sizeof (CoglAttribute *));
context->journal_clip_bounds = NULL;
context->polygon_vertices = g_array_new (FALSE, FALSE, sizeof (float));
context->current_pipeline = NULL;
context->current_pipeline_changes_since_flush = 0;
context->current_pipeline_skip_gl_color = FALSE;
_cogl_bitmask_init (&context->enabled_builtin_attributes);
_cogl_bitmask_init (&context->enable_builtin_attributes_tmp);
_cogl_bitmask_init (&context->enabled_texcoord_attributes);
_cogl_bitmask_init (&context->enable_texcoord_attributes_tmp);
_cogl_bitmask_init (&context->enabled_custom_attributes);
_cogl_bitmask_init (&context->enable_custom_attributes_tmp);
_cogl_bitmask_init (&context->changed_bits_tmp);
context->max_texture_units = -1;
context->max_activateable_texture_units = -1;
context->current_fragment_program_type = COGL_PIPELINE_PROGRAM_TYPE_FIXED;
context->current_vertex_program_type = COGL_PIPELINE_PROGRAM_TYPE_FIXED;
context->current_gl_program = 0;
context->current_gl_dither_enabled = TRUE;
context->current_gl_color_mask = COGL_COLOR_MASK_ALL;
context->gl_blend_enable_cache = FALSE;
context->depth_test_enabled_cache = FALSE;
context->depth_test_function_cache = COGL_DEPTH_TEST_FUNCTION_LESS;
context->depth_writing_enabled_cache = TRUE;
context->depth_range_near_cache = 0;
context->depth_range_far_cache = 1;
context->pipeline_cache = cogl_pipeline_cache_new ();
for (i = 0; i < COGL_BUFFER_BIND_TARGET_COUNT; i++)
context->current_buffer[i] = NULL;
context->window_buffer = NULL;
context->framebuffer_stack = _cogl_create_framebuffer_stack ();
/* XXX: In this case the Clutter backend is still responsible for
* the OpenGL binding API and for creating onscreen framebuffers and
* so we have to add a dummy framebuffer to represent the backend
* owned window... */
if (_cogl_context_get_winsys (context) == _cogl_winsys_stub_get_vtable ())
{
CoglOnscreen *window = _cogl_onscreen_new ();
cogl_set_framebuffer (COGL_FRAMEBUFFER (window));
cogl_object_unref (COGL_FRAMEBUFFER (window));
}
context->stencil_pipeline = cogl_pipeline_new (context);
context->in_begin_gl_block = FALSE;
context->quad_buffer_indices_byte = NULL;
context->quad_buffer_indices = NULL;
context->quad_buffer_indices_len = 0;
context->rectangle_byte_indices = NULL;
context->rectangle_short_indices = NULL;
context->rectangle_short_indices_len = 0;
context->texture_download_pipeline = NULL;
context->blit_texture_pipeline = NULL;
#if defined (HAVE_COGL_GL) || defined (HAVE_COGL_GLES)
if (context->driver != COGL_DRIVER_GLES2)
/* The default for GL_ALPHA_TEST is to always pass which is equivalent to
* the test being disabled therefore we assume that for all drivers there
* will be no performance impact if we always leave the test enabled which
* makes things a bit simpler for us. Under GLES2 the alpha test is
* implemented in the fragment shader so there is no enable for it
*/
GE (context, glEnable (GL_ALPHA_TEST));
#endif
_context->current_modelview_entry = NULL;
_context->current_projection_entry = NULL;
_cogl_matrix_entry_identity_init (&_context->identity_entry);
_cogl_matrix_entry_cache_init (&_context->builtin_flushed_projection);
_cogl_matrix_entry_cache_init (&_context->builtin_flushed_modelview);
default_texture_bitmap =
cogl_bitmap_new_for_data (_context,
1, 1, /* width/height */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
4, /* rowstride */
default_texture_data);
/* Create default textures used for fall backs */
context->default_gl_texture_2d_tex =
cogl_texture_2d_new_from_bitmap (default_texture_bitmap,
/* internal format */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
NULL);
/* If 3D or rectangle textures aren't supported then these should
just silently return NULL */
context->default_gl_texture_3d_tex =
cogl_texture_3d_new_from_bitmap (default_texture_bitmap,
1, /* height */
1, /* depth */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
NULL);
context->default_gl_texture_rect_tex =
cogl_texture_rectangle_new_from_bitmap (default_texture_bitmap,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
NULL);
cogl_object_unref (default_texture_bitmap);
context->atlases = NULL;
g_hook_list_init (&context->atlas_reorganize_callbacks, sizeof (GHook));
_context->buffer_map_fallback_array = g_byte_array_new ();
_context->buffer_map_fallback_in_use = FALSE;
/* As far as I can tell, GL_POINT_SPRITE doesn't have any effect
unless GL_COORD_REPLACE is enabled for an individual
layer. Therefore it seems like it should be ok to just leave it
enabled all the time instead of having to have a set property on
each pipeline to track whether any layers have point sprite
coords enabled. We don't need to do this for GLES2 because point
sprites are handled using a builtin varying in the shader. */
if (_context->driver != COGL_DRIVER_GLES2 &&
cogl_has_feature (context, COGL_FEATURE_ID_POINT_SPRITE))
GE (context, glEnable (GL_POINT_SPRITE));
return context;
}