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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.
*
* Based on glx code by David Reveman
*
* Contributors:
* Tor Lillqvist <tml@iki.fi>
* Vladimir Vukicevic <vladimir@pobox.com>
*
*/
#ifdef HAVE_CONFIG_H
# include "../config.h"
#endif
#include "glitz_wglint.h"
#include <stdio.h>
glitz_status_t
glitz_wgl_make_current_read (void *abstract_surface)
{
return GLITZ_STATUS_NOT_SUPPORTED;
}
static glitz_wgl_drawable_t *
_glitz_wgl_create_drawable (glitz_wgl_screen_info_t *screen_info,
glitz_wgl_context_t *context,
glitz_drawable_format_t *format,
HWND window,
HDC dc,
HPBUFFERARB pbuffer,
int width,
int height)
{
glitz_wgl_drawable_t *drawable;
if (width <= 0 || height <= 0)
return NULL;
drawable = (glitz_wgl_drawable_t *) malloc (sizeof (glitz_wgl_drawable_t));
if (drawable == NULL)
return NULL;
drawable->base.ref_count = 1;
drawable->screen_info = screen_info;
drawable->context = context;
drawable->window = window;
drawable->dc = dc;
drawable->pbuffer = pbuffer;
_glitz_drawable_init (&drawable->base,
&screen_info->formats[format->id],
&context->backend,
width,
height);
if (!context->initialized) {
glitz_wgl_push_current (drawable, NULL, GLITZ_CONTEXT_CURRENT);
glitz_wgl_pop_current (drawable);
}
if (width > context->max_viewport_dims[0] ||
height > context->max_viewport_dims[1]) {
free (drawable);
return NULL;
}
screen_info->drawables++;
return drawable;
}
static glitz_drawable_t *
_glitz_wgl_create_pbuffer_drawable (glitz_wgl_screen_info_t *screen_info,
glitz_drawable_format_t *format,
unsigned int width,
unsigned int height)
{
glitz_wgl_drawable_t *drawable;
glitz_wgl_context_t *context;
glitz_int_drawable_format_t *iformat = &screen_info->formats[format->id];
HPBUFFERARB pbuffer;
HDC dc;
if (!(iformat->types & GLITZ_DRAWABLE_TYPE_PBUFFER_MASK))
return NULL;
pbuffer = glitz_wgl_pbuffer_create (screen_info, screen_info->format_ids[format->id],
width, height,
&dc);
if (!pbuffer)
return NULL;
context = glitz_wgl_context_get (screen_info, dc, format);
if (!context) {
glitz_wgl_pbuffer_destroy (screen_info, pbuffer, dc);
return NULL;
}
drawable = _glitz_wgl_create_drawable (screen_info, context, format,
NULL, dc, pbuffer,
width, height);
if (!drawable) {
glitz_wgl_pbuffer_destroy (screen_info, pbuffer, dc);
glitz_wgl_context_destroy (screen_info, context);
return NULL;
}
return &drawable->base;
}
glitz_drawable_t *
glitz_wgl_create_pbuffer (void *abstract_templ,
glitz_drawable_format_t *format,
unsigned int width,
unsigned int height)
{
glitz_wgl_drawable_t *templ = (glitz_wgl_drawable_t *) abstract_templ;
return _glitz_wgl_create_pbuffer_drawable (templ->screen_info, format,
width, height);
}
glitz_drawable_t *
glitz_wgl_create_drawable_for_window (glitz_drawable_format_t *format,
HWND window,
unsigned int width,
unsigned int height)
{
glitz_wgl_drawable_t *drawable;
glitz_wgl_screen_info_t *screen_info;
glitz_wgl_context_t *context;
HDC dc;
screen_info = glitz_wgl_screen_info_get ();
if (!screen_info)
return NULL;
dc = GetDC (window);
context = glitz_wgl_context_get (screen_info, dc, format);
if (!context) {
ReleaseDC (window, dc);
return NULL;
}
drawable = _glitz_wgl_create_drawable (screen_info, context, format,
window, dc, NULL,
width, height);
if (!drawable)
return NULL;
return &drawable->base;
}
glitz_drawable_t *
glitz_wgl_create_pbuffer_drawable (glitz_drawable_format_t *format,
unsigned int width,
unsigned int height)
{
glitz_wgl_screen_info_t *screen_info;
screen_info = glitz_wgl_screen_info_get ();
if (!screen_info)
return NULL;
return _glitz_wgl_create_pbuffer_drawable (screen_info, format,
width, height);
}
void
glitz_wgl_destroy (void *abstract_drawable)
{
glitz_wgl_drawable_t *drawable = (glitz_wgl_drawable_t *) abstract_drawable;
drawable->screen_info->drawables--;
if (drawable->screen_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_wgl_push_current (abstract_drawable, NULL, GLITZ_CONTEXT_CURRENT);
glitz_program_map_fini (drawable->base.backend->gl,
&drawable->screen_info->program_map);
glitz_program_map_init (&drawable->screen_info->program_map);
glitz_wgl_pop_current (abstract_drawable);
}
if (wglGetCurrentDC () == drawable->dc)
{
wglMakeCurrent (NULL, NULL);
}
if (drawable->pbuffer)
glitz_wgl_pbuffer_destroy (drawable->screen_info, drawable->pbuffer, drawable->dc);
free (drawable);
}
glitz_bool_t
glitz_wgl_swap_buffers (void *abstract_drawable)
{
glitz_wgl_drawable_t *drawable = (glitz_wgl_drawable_t *) abstract_drawable;
SwapBuffers (drawable->dc);
return 1;
}
glitz_bool_t
glitz_wgl_copy_sub_buffer (void *abstract_drawable,
int x,
int y,
int width,
int height)
{
return 0;
}
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