mirror of
https://github.com/brl/mutter.git
synced 2024-11-29 11:30:45 -05:00
cogl: Adds experimental cogl_context_new() API
This adds a new experimental function (you need to define COGL_ENABLE_EXPERIMENTAL_API to access it) which takes us towards being able to have a standalone Cogl API. This is really a minor aesthetic change for now since all the GL context creation code still lives in Clutter but it's a step forward none the less. Since our current designs introduce a CoglDisplay object as something that would be passed to the context constructor this provides a stub cogl-display.h with CoglDisplay typedef. _cogl_context_get_default() which Clutter uses to access the Cogl context has been modified to use cogl_context_new() to initialize the default context. There is one rather nasty hack used in this patch which is that the implementation of cogl_context_new() has to forcibly make the allocated context become the default context because currently all the code in Cogl assumes it can access the context using _COGL_GET_CONTEXT including code used to initialize the context.
This commit is contained in:
Robert Bragg
parent
fdbc741770
commit
e9b1ca0165
@ -82,6 +82,7 @@ cogl_public_h = \
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$(NULL)
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cogl_experimental_h = \
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$(srcdir)/cogl-context.h \
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$(srcdir)/cogl2-path.h \
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$(srcdir)/cogl2-clip-state.h \
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$(NULL)
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@ -25,6 +25,7 @@
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#define __COGL_CONTEXT_PRIVATE_H
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#include "cogl-internal.h"
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#include "cogl-context.h"
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#if HAVE_COGL_GL
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#include "cogl-context-driver-gl.h"
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@ -50,8 +51,10 @@ typedef struct
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GLubyte c[4];
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} CoglTextureGLVertex;
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typedef struct
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struct _CoglContext
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{
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CoglObject _parent;
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/* Features cache */
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CoglFeatureFlags feature_flags;
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CoglFeatureFlagsPrivate feature_flags_private;
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@ -236,7 +239,7 @@ typedef struct
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CoglContextDriver drv;
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CoglContextWinsys winsys;
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} CoglContext;
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};
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CoglContext *
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_cogl_context_get_default ();
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@ -26,6 +26,7 @@
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#endif
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#include "cogl.h"
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#include "cogl-object.h"
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#include "cogl-internal.h"
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#include "cogl-profile.h"
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#include "cogl-util.h"
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@ -49,6 +50,10 @@
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#define GL_POINT_SPRITE 0x8861
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#endif
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static void _cogl_context_free (CoglContext *context);
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COGL_OBJECT_DEFINE (Context, context);
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extern void
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_cogl_create_context_driver (CoglContext *context);
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extern void
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@ -81,16 +86,29 @@ _cogl_init_feature_overrides (CoglContext *ctx)
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COGL_FEATURE_TEXTURE_NPOT_REPEAT);
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}
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static gboolean
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cogl_create_context (void)
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/* FIXME: We don't report a GError here should we? With non NULL
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* displays then there should basically be no risk of error I think,
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* but NULL just says "please do the right thing" and we could hit any
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* number of problems that should be reported back to the caller!
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*
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* Also is it acceptable for construction to report an error
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* or should there be a separate cogl_context_check_status()
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* API of some kind?
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*/
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CoglContext *
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cogl_context_new (CoglDisplay *display)
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{
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CoglContext *context;
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GLubyte default_texture_data[] = { 0xff, 0xff, 0xff, 0x0 };
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unsigned long enable_flags = 0;
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CoglHandle window_buffer;
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int i;
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if (_context != NULL)
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return FALSE;
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/* A NULL display means "please just do something sensible"
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* and since we haven't implemented anything for CoglDisplay
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* yet that's the only kind of context construction we allow
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* for now. */
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g_return_val_if_fail (display == NULL, NULL);
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#ifdef CLUTTER_ENABLE_PROFILE
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/* We need to be absolutely sure that uprof has been initialized
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@ -109,105 +127,114 @@ cogl_create_context (void)
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#endif
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/* Allocate context memory */
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_context = (CoglContext*) g_malloc (sizeof (CoglContext));
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context = g_malloc (sizeof (CoglContext));
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/* XXX: Gross hack!
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* Currently everything in Cogl just assumes there is a default
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* context which it can access via _COGL_GET_CONTEXT() including
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* code used to construct a CoglContext. Until all of that code
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* has been updated to take an explicit context argument we have
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* to immediatly make our pointer the default context.
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*/
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_context = context;
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/* Init default values */
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_context->feature_flags = 0;
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_context->feature_flags_private = 0;
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_context->texture_types = NULL;
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_context->buffer_types = NULL;
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context->texture_types = NULL;
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context->buffer_types = NULL;
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/* Initialise the driver specific state */
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/* TODO: combine these two into one function */
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_cogl_create_context_driver (_context);
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_cogl_create_context_driver (context);
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_cogl_features_init ();
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_cogl_init_feature_overrides (_context);
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_cogl_create_context_winsys (_context);
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_cogl_create_context_winsys (context);
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_cogl_pipeline_init_default_pipeline ();
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_cogl_pipeline_init_default_layers ();
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_cogl_pipeline_init_state_hash_functions ();
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_cogl_pipeline_init_layer_state_hash_functions ();
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_context->enable_flags = 0;
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context->enable_flags = 0;
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_context->enable_backface_culling = FALSE;
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_context->flushed_front_winding = COGL_FRONT_WINDING_COUNTER_CLOCKWISE;
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context->enable_backface_culling = FALSE;
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context->flushed_front_winding = COGL_FRONT_WINDING_COUNTER_CLOCKWISE;
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_context->indirect = gl_is_indirect;
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context->indirect = gl_is_indirect;
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cogl_matrix_init_identity (&_context->identity_matrix);
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cogl_matrix_init_identity (&_context->y_flip_matrix);
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cogl_matrix_scale (&_context->y_flip_matrix, 1, -1, 1);
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cogl_matrix_init_identity (&context->identity_matrix);
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cogl_matrix_init_identity (&context->y_flip_matrix);
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cogl_matrix_scale (&context->y_flip_matrix, 1, -1, 1);
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_context->flushed_matrix_mode = COGL_MATRIX_MODELVIEW;
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context->flushed_matrix_mode = COGL_MATRIX_MODELVIEW;
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_context->texture_units =
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context->texture_units =
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g_array_new (FALSE, FALSE, sizeof (CoglTextureUnit));
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/* See cogl-pipeline.c for more details about why we leave texture unit 1
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* active by default... */
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_context->active_texture_unit = 1;
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context->active_texture_unit = 1;
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GE (glActiveTexture (GL_TEXTURE1));
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_context->legacy_fog_state.enabled = FALSE;
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context->legacy_fog_state.enabled = FALSE;
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_context->opaque_color_pipeline = cogl_pipeline_new ();
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_context->blended_color_pipeline = cogl_pipeline_new ();
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_context->texture_pipeline = cogl_pipeline_new ();
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_context->codegen_header_buffer = g_string_new ("");
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_context->codegen_source_buffer = g_string_new ("");
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_context->source_stack = NULL;
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context->opaque_color_pipeline = cogl_pipeline_new ();
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context->blended_color_pipeline = cogl_pipeline_new ();
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context->texture_pipeline = cogl_pipeline_new ();
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context->codegen_header_buffer = g_string_new ("");
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context->codegen_source_buffer = g_string_new ("");
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context->source_stack = NULL;
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_context->legacy_state_set = 0;
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context->legacy_state_set = 0;
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_context->default_gl_texture_2d_tex = COGL_INVALID_HANDLE;
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_context->default_gl_texture_rect_tex = COGL_INVALID_HANDLE;
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context->default_gl_texture_2d_tex = COGL_INVALID_HANDLE;
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context->default_gl_texture_rect_tex = COGL_INVALID_HANDLE;
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_context->framebuffers = NULL;
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context->framebuffers = NULL;
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_context->journal_flush_attributes_array =
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context->journal_flush_attributes_array =
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g_array_new (TRUE, FALSE, sizeof (CoglAttribute *));
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_context->journal_clip_bounds = NULL;
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context->journal_clip_bounds = NULL;
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_context->polygon_vertices = g_array_new (FALSE, FALSE, sizeof (float));
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context->polygon_vertices = g_array_new (FALSE, FALSE, sizeof (float));
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_context->current_pipeline = NULL;
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_context->current_pipeline_changes_since_flush = 0;
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_context->current_pipeline_skip_gl_color = FALSE;
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context->current_pipeline = NULL;
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context->current_pipeline_changes_since_flush = 0;
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context->current_pipeline_skip_gl_color = FALSE;
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_context->pipeline0_nodes =
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context->pipeline0_nodes =
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g_array_sized_new (FALSE, FALSE, sizeof (CoglHandle), 20);
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_context->pipeline1_nodes =
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context->pipeline1_nodes =
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g_array_sized_new (FALSE, FALSE, sizeof (CoglHandle), 20);
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_cogl_bitmask_init (&_context->arrays_enabled);
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_cogl_bitmask_init (&_context->temp_bitmask);
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_cogl_bitmask_init (&_context->arrays_to_change);
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_cogl_bitmask_init (&context->arrays_enabled);
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_cogl_bitmask_init (&context->temp_bitmask);
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_cogl_bitmask_init (&context->arrays_to_change);
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_context->max_texture_units = -1;
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_context->max_texture_image_units = -1;
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_context->max_activateable_texture_units = -1;
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context->max_texture_units = -1;
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context->max_texture_image_units = -1;
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context->max_activateable_texture_units = -1;
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_context->current_program = COGL_INVALID_HANDLE;
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context->current_program = COGL_INVALID_HANDLE;
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_context->current_fragment_program_type = COGL_PIPELINE_PROGRAM_TYPE_FIXED;
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_context->current_vertex_program_type = COGL_PIPELINE_PROGRAM_TYPE_FIXED;
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_context->current_gl_program = 0;
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context->current_fragment_program_type = COGL_PIPELINE_PROGRAM_TYPE_FIXED;
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context->current_vertex_program_type = COGL_PIPELINE_PROGRAM_TYPE_FIXED;
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context->current_gl_program = 0;
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_context->gl_blend_enable_cache = FALSE;
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context->gl_blend_enable_cache = FALSE;
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_context->depth_test_enabled_cache = FALSE;
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_context->depth_test_function_cache = COGL_DEPTH_TEST_FUNCTION_LESS;
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_context->depth_writing_enabled_cache = TRUE;
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_context->depth_range_near_cache = 0;
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_context->depth_range_far_cache = 1;
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context->depth_test_enabled_cache = FALSE;
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context->depth_test_function_cache = COGL_DEPTH_TEST_FUNCTION_LESS;
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context->depth_writing_enabled_cache = TRUE;
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context->depth_range_near_cache = 0;
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context->depth_range_far_cache = 1;
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_context->point_size_cache = 1.0f;
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context->point_size_cache = 1.0f;
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_context->legacy_depth_test_enabled = FALSE;
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context->legacy_depth_test_enabled = FALSE;
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#ifdef HAVE_COGL_GL
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_context->arbfp_cache = g_hash_table_new (_cogl_pipeline_fragend_arbfp_hash,
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@ -215,9 +242,9 @@ cogl_create_context (void)
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#endif
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for (i = 0; i < COGL_BUFFER_BIND_TARGET_COUNT; i++)
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_context->current_buffer[i] = NULL;
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context->current_buffer[i] = NULL;
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_context->framebuffer_stack = _cogl_create_framebuffer_stack ();
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context->framebuffer_stack = _cogl_create_framebuffer_stack ();
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_context->current_clip_stack_valid = FALSE;
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@ -225,26 +252,26 @@ cogl_create_context (void)
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cogl_set_framebuffer (window_buffer);
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/* XXX: the deprecated _cogl_set_draw_buffer API expects to
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* find the window buffer here... */
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_context->window_buffer = window_buffer;
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context->window_buffer = window_buffer;
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_context->dirty_bound_framebuffer = TRUE;
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_context->dirty_gl_viewport = TRUE;
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context->dirty_bound_framebuffer = TRUE;
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context->dirty_gl_viewport = TRUE;
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_context->current_path = cogl2_path_new ();
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_context->stencil_pipeline = cogl_pipeline_new ();
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context->current_path = cogl2_path_new ();
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context->stencil_pipeline = cogl_pipeline_new ();
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_context->in_begin_gl_block = FALSE;
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context->in_begin_gl_block = FALSE;
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_context->quad_buffer_indices_byte = COGL_INVALID_HANDLE;
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_context->quad_buffer_indices = COGL_INVALID_HANDLE;
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_context->quad_buffer_indices_len = 0;
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context->quad_buffer_indices_byte = COGL_INVALID_HANDLE;
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context->quad_buffer_indices = COGL_INVALID_HANDLE;
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context->quad_buffer_indices_len = 0;
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_context->rectangle_byte_indices = NULL;
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_context->rectangle_short_indices = NULL;
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_context->rectangle_short_indices_len = 0;
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context->rectangle_byte_indices = NULL;
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context->rectangle_short_indices = NULL;
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context->rectangle_short_indices_len = 0;
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_context->texture_download_pipeline = COGL_INVALID_HANDLE;
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_context->blit_texture_pipeline = COGL_INVALID_HANDLE;
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context->texture_download_pipeline = COGL_INVALID_HANDLE;
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context->blit_texture_pipeline = COGL_INVALID_HANDLE;
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#ifndef HAVE_COGL_GLES2
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/* The default for GL_ALPHA_TEST is to always pass which is equivalent to
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@ -262,7 +289,7 @@ cogl_create_context (void)
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#endif
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/* Create default textures used for fall backs */
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_context->default_gl_texture_2d_tex =
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context->default_gl_texture_2d_tex =
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cogl_texture_new_from_data (1, /* width */
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1, /* height */
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COGL_TEXTURE_NO_SLICING,
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@ -271,7 +298,7 @@ cogl_create_context (void)
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COGL_PIXEL_FORMAT_RGBA_8888_PRE,
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0, /* auto calc row stride */
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default_texture_data);
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_context->default_gl_texture_rect_tex =
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context->default_gl_texture_rect_tex =
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cogl_texture_new_from_data (1, /* width */
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1, /* height */
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COGL_TEXTURE_NO_SLICING,
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@ -281,12 +308,12 @@ cogl_create_context (void)
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0, /* auto calc row stride */
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default_texture_data);
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cogl_push_source (_context->opaque_color_pipeline);
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_cogl_pipeline_flush_gl_state (_context->opaque_color_pipeline, FALSE, 0);
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cogl_push_source (context->opaque_color_pipeline);
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_cogl_pipeline_flush_gl_state (context->opaque_color_pipeline, FALSE, 0);
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_cogl_enable (enable_flags);
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_cogl_flush_face_winding ();
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_context->atlases = NULL;
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context->atlases = NULL;
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_context->buffer_map_fallback_array = g_byte_array_new ();
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_context->buffer_map_fallback_in_use = FALSE;
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@ -303,79 +330,75 @@ cogl_create_context (void)
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GE (glEnable (GL_POINT_SPRITE));
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#endif
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return TRUE;
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return _cogl_context_object_new (context);
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}
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void
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_cogl_destroy_context (void)
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static void
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_cogl_context_free (CoglContext *context)
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{
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if (_context == NULL)
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return;
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_cogl_destroy_context_winsys (_context);
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_cogl_destroy_context_winsys (context);
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_cogl_destroy_texture_units ();
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_cogl_free_framebuffer_stack (_context->framebuffer_stack);
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_cogl_free_framebuffer_stack (context->framebuffer_stack);
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if (_context->current_path)
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cogl_handle_unref (_context->current_path);
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if (context->current_path)
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cogl_handle_unref (context->current_path);
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if (_context->default_gl_texture_2d_tex)
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cogl_handle_unref (_context->default_gl_texture_2d_tex);
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if (_context->default_gl_texture_rect_tex)
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cogl_handle_unref (_context->default_gl_texture_rect_tex);
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if (context->default_gl_texture_2d_tex)
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cogl_handle_unref (context->default_gl_texture_2d_tex);
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if (context->default_gl_texture_rect_tex)
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cogl_handle_unref (context->default_gl_texture_rect_tex);
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if (_context->opaque_color_pipeline)
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cogl_handle_unref (_context->opaque_color_pipeline);
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if (_context->blended_color_pipeline)
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cogl_handle_unref (_context->blended_color_pipeline);
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if (_context->texture_pipeline)
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cogl_handle_unref (_context->texture_pipeline);
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if (context->opaque_color_pipeline)
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cogl_handle_unref (context->opaque_color_pipeline);
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if (context->blended_color_pipeline)
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cogl_handle_unref (context->blended_color_pipeline);
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if (context->texture_pipeline)
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cogl_handle_unref (context->texture_pipeline);
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if (_context->blit_texture_pipeline)
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cogl_handle_unref (_context->blit_texture_pipeline);
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if (context->blit_texture_pipeline)
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cogl_handle_unref (context->blit_texture_pipeline);
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if (_context->journal_flush_attributes_array)
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g_array_free (_context->journal_flush_attributes_array, TRUE);
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if (_context->journal_clip_bounds)
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g_array_free (_context->journal_clip_bounds, TRUE);
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if (context->journal_flush_attributes_array)
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g_array_free (context->journal_flush_attributes_array, TRUE);
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if (context->journal_clip_bounds)
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g_array_free (context->journal_clip_bounds, TRUE);
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if (_context->polygon_vertices)
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g_array_free (_context->polygon_vertices, TRUE);
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if (context->polygon_vertices)
|
||||
g_array_free (context->polygon_vertices, TRUE);
|
||||
|
||||
if (_context->quad_buffer_indices_byte)
|
||||
cogl_handle_unref (_context->quad_buffer_indices_byte);
|
||||
if (_context->quad_buffer_indices)
|
||||
cogl_handle_unref (_context->quad_buffer_indices);
|
||||
if (context->quad_buffer_indices_byte)
|
||||
cogl_handle_unref (context->quad_buffer_indices_byte);
|
||||
if (context->quad_buffer_indices)
|
||||
cogl_handle_unref (context->quad_buffer_indices);
|
||||
|
||||
if (_context->rectangle_byte_indices)
|
||||
cogl_object_unref (_context->rectangle_byte_indices);
|
||||
if (_context->rectangle_short_indices)
|
||||
cogl_object_unref (_context->rectangle_short_indices);
|
||||
if (context->rectangle_byte_indices)
|
||||
cogl_object_unref (context->rectangle_byte_indices);
|
||||
if (context->rectangle_short_indices)
|
||||
cogl_object_unref (context->rectangle_short_indices);
|
||||
|
||||
if (_context->default_pipeline)
|
||||
cogl_handle_unref (_context->default_pipeline);
|
||||
if (context->default_pipeline)
|
||||
cogl_handle_unref (context->default_pipeline);
|
||||
|
||||
if (_context->dummy_layer_dependant)
|
||||
cogl_handle_unref (_context->dummy_layer_dependant);
|
||||
if (_context->default_layer_n)
|
||||
cogl_handle_unref (_context->default_layer_n);
|
||||
if (_context->default_layer_0)
|
||||
cogl_handle_unref (_context->default_layer_0);
|
||||
if (context->dummy_layer_dependant)
|
||||
cogl_handle_unref (context->dummy_layer_dependant);
|
||||
if (context->default_layer_n)
|
||||
cogl_handle_unref (context->default_layer_n);
|
||||
if (context->default_layer_0)
|
||||
cogl_handle_unref (context->default_layer_0);
|
||||
|
||||
if (_context->current_clip_stack_valid)
|
||||
_cogl_clip_stack_unref (_context->current_clip_stack);
|
||||
if (context->current_clip_stack_valid)
|
||||
_cogl_clip_stack_unref (context->current_clip_stack);
|
||||
|
||||
g_slist_free (_context->atlases);
|
||||
g_slist_free (context->atlases);
|
||||
|
||||
_cogl_bitmask_destroy (&_context->arrays_enabled);
|
||||
_cogl_bitmask_destroy (&_context->temp_bitmask);
|
||||
_cogl_bitmask_destroy (&_context->arrays_to_change);
|
||||
_cogl_bitmask_destroy (&context->arrays_enabled);
|
||||
_cogl_bitmask_destroy (&context->temp_bitmask);
|
||||
_cogl_bitmask_destroy (&context->arrays_to_change);
|
||||
|
||||
g_slist_free (_context->texture_types);
|
||||
g_slist_free (_context->buffer_types);
|
||||
g_slist_free (context->texture_types);
|
||||
g_slist_free (context->buffer_types);
|
||||
|
||||
#ifdef HAVE_COGL_GLES2
|
||||
if (_context->flushed_modelview_stack)
|
||||
@ -385,12 +408,12 @@ _cogl_destroy_context (void)
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_COGL_GL
|
||||
g_hash_table_unref (_context->arbfp_cache);
|
||||
g_hash_table_unref (context->arbfp_cache);
|
||||
#endif
|
||||
|
||||
g_byte_array_free (_context->buffer_map_fallback_array, TRUE);
|
||||
g_byte_array_free (context->buffer_map_fallback_array, TRUE);
|
||||
|
||||
g_free (_context);
|
||||
g_free (context);
|
||||
}
|
||||
|
||||
CoglContext *
|
||||
@ -398,7 +421,7 @@ _cogl_context_get_default (void)
|
||||
{
|
||||
/* Create if doesn't exist yet */
|
||||
if (_context == NULL)
|
||||
cogl_create_context ();
|
||||
_context = cogl_context_new (NULL);
|
||||
|
||||
return _context;
|
||||
}
|
||||
|
||||
62
cogl/cogl-context.h
Normal file
62
cogl/cogl-context.h
Normal file
@ -0,0 +1,62 @@
|
||||
/*
|
||||
* Cogl
|
||||
*
|
||||
* An object oriented GL/GLES Abstraction/Utility Layer
|
||||
*
|
||||
* Copyright (C) 2010 Intel Corporation.
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library. If not, see
|
||||
* <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* Authors:
|
||||
* Robert Bragg <robert@linux.intel.com>
|
||||
*
|
||||
*/
|
||||
|
||||
#if !defined(__COGL_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
|
||||
#error "Only <cogl/cogl.h> can be included directly."
|
||||
#endif
|
||||
|
||||
#ifndef __COGL_CONTEXT_H__
|
||||
#define __COGL_CONTEXT_H__
|
||||
|
||||
#include <cogl/cogl-display.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
/**
|
||||
* SECTION:cogl-context
|
||||
* @short_description: The top level application context.
|
||||
*
|
||||
* A CoglContext is the topmost sandbox of Cogl state for an
|
||||
* application or toolkit. Its main purpose is to bind together the
|
||||
* key state objects at any one time; with the most significant being
|
||||
* the current framebuffer being drawn too (See #CoglFramebuffer for
|
||||
* more details) and the current GPU pipeline configuration (See
|
||||
* #CoglPipeline for more details).
|
||||
*/
|
||||
|
||||
typedef struct _CoglContext CoglContext;
|
||||
|
||||
#define COGL_CONTEXT(OBJECT) ((CoglContext *)OBJECT)
|
||||
|
||||
#define cogl_context_new cogl_context_new_EXP
|
||||
|
||||
CoglContext *
|
||||
cogl_context_new (CoglDisplay *display);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __COGL_CONTEXT_H__ */
|
||||
|
||||
78
cogl/cogl-display.h
Normal file
78
cogl/cogl-display.h
Normal file
@ -0,0 +1,78 @@
|
||||
/*
|
||||
* Cogl
|
||||
*
|
||||
* An object oriented GL/GLES Abstraction/Utility Layer
|
||||
*
|
||||
* Copyright (C) 2010 Intel Corporation.
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library. If not, see
|
||||
* <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* Authors:
|
||||
* Robert Bragg <robert@linux.intel.com>
|
||||
*
|
||||
*/
|
||||
|
||||
#if !defined(__COGL_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
|
||||
#error "Only <cogl/cogl.h> can be included directly."
|
||||
#endif
|
||||
|
||||
#ifndef __COGL_DISPLAY_H__
|
||||
#define __COGL_DISPLAY_H__
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
/**
|
||||
* SECTION:cogl-display
|
||||
* @short_description: Represents a display pipeline
|
||||
*
|
||||
* TODO: We still need to decide if we really need this object or if
|
||||
* it's enough to just have the CoglSwapChain CoglOnscreenTemplate
|
||||
* objects.
|
||||
*
|
||||
* The basic intention is for this object to let the application
|
||||
* specify its display preferences before creating a context, and
|
||||
* there are a few different aspects to this...
|
||||
*
|
||||
* Firstly there is the physical display pipeline that is currently
|
||||
* being used including the digital to analogue conversion hardware
|
||||
* and the screen the user sees. Although we don't have a plan to
|
||||
* expose all the advanced features of arbitrary display hardware with
|
||||
* a Cogl API, some backends may want to expose limited control over
|
||||
* this hardware via Cogl and simpler features like providing a list
|
||||
* of modes to choose from in a UI could be nice too.
|
||||
*
|
||||
* Another aspect is that the display configuration may be tightly
|
||||
* related to how onscreen framebuffers should be configured. In fact
|
||||
* one of the early rationals for this object was to let us handle
|
||||
* GLX's requirement that framebuffers must be "compatible" with the
|
||||
* fbconfig associated with the current context meaning we have to
|
||||
* force the user to describe how they would like to create their
|
||||
* onscreen windows before we can choose a suitable fbconfig and
|
||||
* create a GLContext.
|
||||
*
|
||||
* TODO: continue this thought process and come to a decision...
|
||||
*/
|
||||
|
||||
typedef struct _CoglDisplay CoglDisplay;
|
||||
|
||||
#define COGL_DISPLAY(OBJECT) ((CoglDisplay *)OBJECT)
|
||||
|
||||
CoglDisplay *
|
||||
cogl_display_new (CoglDisplay *display);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __COGL_DISPLAY_H__ */
|
||||
|
||||
@ -68,6 +68,7 @@
|
||||
#include <cogl/cogl-deprecated.h>
|
||||
|
||||
#if defined (COGL_ENABLE_EXPERIMENTAL_API)
|
||||
#include <cogl/cogl-context.h>
|
||||
#include <cogl/cogl-buffer.h>
|
||||
#include <cogl/cogl-pixel-array.h>
|
||||
#include <cogl/cogl-vector.h>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user