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/*
* Copyright © 2004 David Reveman
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the names of
* David Reveman not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
* David Reveman makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* DAVID REVEMAN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
* NO EVENT SHALL DAVID REVEMAN BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: David Reveman <c99drn@cs.umu.se>
*/
#ifdef HAVE_CONFIG_H
# include "../config.h"
#endif
#include "glitz_aglint.h"
glitz_status_t
glitz_agl_make_current_read (void *abstract_surface)
{
return GLITZ_STATUS_NOT_SUPPORTED;
}
static glitz_agl_drawable_t *
_glitz_agl_create_drawable (glitz_agl_thread_info_t *thread_info,
glitz_agl_context_t *context,
glitz_drawable_format_t *format,
AGLDrawable agl_drawable,
AGLPbuffer agl_pbuffer,
int width,
int height)
{
glitz_agl_drawable_t *drawable;
if (width <= 0 || height <= 0)
return NULL;
drawable = (glitz_agl_drawable_t *) malloc (sizeof (glitz_agl_drawable_t));
if (drawable == NULL)
return NULL;
drawable->base.ref_count = 1;
drawable->thread_info = thread_info;
drawable->context = context;
drawable->drawable = agl_drawable;
drawable->pbuffer = agl_pbuffer;
drawable->base.format = format;
drawable->base.backend = &context->backend;
glitz_drawable_update_size (&drawable->base, width, height);
if (!context->initialized) {
glitz_agl_push_current (drawable, NULL, GLITZ_CONTEXT_CURRENT);
glitz_agl_pop_current (drawable);
}
if (width > context->max_viewport_dims[0] ||
height > context->max_viewport_dims[1]) {
free (drawable);
return NULL;
}
thread_info->drawables++;
return drawable;
}
static glitz_drawable_t *
_glitz_agl_create_pbuffer_drawable (glitz_agl_thread_info_t *thread_info,
glitz_drawable_format_t *format,
glitz_pbuffer_attributes_t *attributes,
unsigned long mask)
{
glitz_agl_drawable_t *drawable;
glitz_agl_context_t *context;
AGLPbuffer pbuffer;
int width, height;
if (!format->types.pbuffer)
return NULL;
context = glitz_agl_context_get (thread_info, format);
if (!context)
return NULL;
pbuffer = glitz_agl_pbuffer_create (thread_info, attributes, mask,
&width, &height);
if (!pbuffer)
return NULL;
drawable = _glitz_agl_create_drawable (thread_info, context, format,
(AGLDrawable) 0, pbuffer,
width, height);
if (!drawable) {
glitz_agl_pbuffer_destroy (pbuffer);
return NULL;
}
return &drawable->base;
}
glitz_drawable_t *
glitz_agl_create_pbuffer (void *abstract_templ,
glitz_drawable_format_t *format,
glitz_pbuffer_attributes_t *attributes,
unsigned long mask)
{
glitz_agl_drawable_t *templ = (glitz_agl_drawable_t *) abstract_templ;
return _glitz_agl_create_pbuffer_drawable (templ->thread_info, format,
attributes, mask);
}
glitz_drawable_t *
glitz_agl_create_drawable_for_window (glitz_drawable_format_t *format,
WindowRef window,
int width,
int height)
{
glitz_agl_drawable_t *drawable;
glitz_agl_thread_info_t *thread_info;
glitz_agl_context_t *context;
AGLDrawable agl_drawable;
agl_drawable = (AGLDrawable) GetWindowPort (window);
if (!agl_drawable)
return NULL;
thread_info = glitz_agl_thread_info_get ();
if (!thread_info)
return NULL;
context = glitz_agl_context_get (thread_info, format);
if (!context)
return NULL;
drawable = _glitz_agl_create_drawable (thread_info, context, format,
agl_drawable, (AGLPbuffer) 0,
width, height);
if (!drawable)
return NULL;
return &drawable->base;
}
slim_hidden_def(glitz_agl_create_drawable_for_window);
glitz_drawable_t *
glitz_agl_create_pbuffer_drawable (glitz_drawable_format_t *format,
glitz_pbuffer_attributes_t *attributes,
unsigned long mask)
{
glitz_agl_thread_info_t *thread_info;
thread_info = glitz_agl_thread_info_get ();
if (!thread_info)
return NULL;
return _glitz_agl_create_pbuffer_drawable (thread_info, format,
attributes, mask);
}
slim_hidden_def(glitz_agl_create_pbuffer_drawable);
void
glitz_agl_destroy (void *abstract_drawable)
{
glitz_agl_drawable_t *drawable = (glitz_agl_drawable_t *) abstract_drawable;
drawable->thread_info->drawables--;
if (drawable->thread_info->drawables == 0) {
/*
* Last drawable? We have to destroy all fragment programs as this may
* be our last chance to have a context current.
*/
glitz_agl_push_current (abstract_drawable, NULL, GLITZ_CONTEXT_CURRENT);
glitz_program_map_fini (&drawable->base.backend->gl,
&drawable->thread_info->program_map);
glitz_agl_pop_current (abstract_drawable);
}
if (drawable->drawable || drawable->pbuffer) {
AGLContext context = aglGetCurrentContext ();
if (context == drawable->context->context) {
if (drawable->pbuffer) {
AGLPbuffer pbuffer;
GLuint unused;
aglGetPBuffer (context, &pbuffer, &unused, &unused, &unused);
if (pbuffer == drawable->pbuffer)
aglSetCurrentContext (NULL);
} else {
if (aglGetDrawable (context) == drawable->drawable)
aglSetCurrentContext (NULL);
}
}
if (drawable->pbuffer)
glitz_agl_pbuffer_destroy (drawable->pbuffer);
}
free (drawable);
}
void
glitz_agl_swap_buffers (void *abstract_drawable)
{
glitz_agl_drawable_t *drawable = (glitz_agl_drawable_t *) abstract_drawable;
glitz_agl_push_current (abstract_drawable, NULL, GLITZ_DRAWABLE_CURRENT);
aglSwapBuffers (drawable->context->context);
glitz_agl_pop_current (abstract_drawable);
}
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