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/*
* Copyright © 2004 David Reveman
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
*
* 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 name 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 <davidr@novell.com>
*
* This file has been modified from the GLitz GLX code for use with glucose
* by: Alan Hourihane <alanh@tungstengraphics.com>
*
**************************************************************************/
#ifdef HAVE_CONFIG_H
#include "dix-config.h"
#endif
#if 0
#include "glxserver.h"
#else
#include "scrnintstr.h"
#include "window.h"
#include "pixmap.h"
#include <GL/glx.h>
#include <GL/glxint.h>
/* For glxscreens.h */
typedef struct __GLXdrawable __GLXdrawable;
typedef struct __GLXcontext __GLXcontext;
#include "glxscreens.h"
#include "glxdrawable.h"
#include "glxcontext.h"
#endif
#include "glcontextmodes.h"
#include "glitz_glucose.h"
#include <stdlib.h>
#include <string.h>
static int
_glitz_glucose_format_compare (const void *elem1,
const void *elem2)
{
glitz_int_drawable_format_t *format[2];
int i, score[2];
format[0] = (glitz_int_drawable_format_t *) elem1;
format[1] = (glitz_int_drawable_format_t *) elem2;
i = score[0] = score[1] = 0;
for (; i < 2; i++)
{
if (format[i]->d.color.fourcc != GLITZ_FOURCC_RGB)
score[i] -= 1000;
if (format[i]->d.color.red_size)
{
if (format[i]->d.color.red_size >= 8)
score[i] += 5;
score[i] += 10;
}
if (format[i]->d.color.alpha_size)
{
if (format[i]->d.color.alpha_size >= 8)
score[i] += 5;
score[i] += 10;
}
if (format[i]->d.stencil_size)
score[i] += 5;
if (format[i]->d.depth_size)
score[i] += 5;
if (format[i]->d.doublebuffer)
score[i] += 10;
if (format[i]->d.samples > 1)
score[i] -= (20 - format[i]->d.samples);
if (format[i]->types & GLITZ_DRAWABLE_TYPE_WINDOW_MASK)
score[i] += 10;
if (format[i]->types & GLITZ_DRAWABLE_TYPE_PBUFFER_MASK)
score[i] += 10;
if (format[i]->caveat)
score[i] -= 1000;
}
return score[1] - score[0];
}
static void
_glitz_add_format (glitz_glucose_screen_info_t *screen_info,
glitz_int_drawable_format_t *format)
{
int n = screen_info->n_formats;
screen_info->formats =
realloc (screen_info->formats,
sizeof (glitz_int_drawable_format_t) * (n + 1));
if (screen_info->formats)
{
screen_info->formats[n] = *format;
screen_info->formats[n].d.id = n;
screen_info->n_formats++;
}
}
static void
_glitz_glucose_query_formats (glitz_glucose_screen_info_t *screen_info)
{
__GLXscreen *screen = screen_info->display_info->display;
__GLcontextModes *mode;
glitz_int_drawable_format_t format;
int i;
format.types = GLITZ_DRAWABLE_TYPE_WINDOW_MASK;
format.d.id = 0;
format.d.color.fourcc = GLITZ_FOURCC_RGB;
mode = screen->modes;
for (i = 0; i < screen->numVisuals; i++)
{
int value;
if ((_gl_get_context_mode_data(mode, GLX_USE_GL, &value) != 0) ||
(value == 0))
continue;
_gl_get_context_mode_data(mode, GLX_RGBA, &value);
if (value == 0)
continue;
/* Stereo is not supported yet */
_gl_get_context_mode_data(mode, GLX_STEREO, &value);
if (value != 0)
continue;
_gl_get_context_mode_data(mode, GLX_RED_SIZE, &value);
format.d.color.red_size = (unsigned short) value;
_gl_get_context_mode_data(mode, GLX_GREEN_SIZE, &value);
format.d.color.green_size = (unsigned short) value;
_gl_get_context_mode_data(mode, GLX_BLUE_SIZE, &value);
format.d.color.blue_size = (unsigned short) value;
_gl_get_context_mode_data(mode, GLX_ALPHA_SIZE, &value);
format.d.color.alpha_size = (unsigned short) value;
_gl_get_context_mode_data(mode, GLX_DEPTH_SIZE, &value);
format.d.depth_size = (unsigned short) value;
_gl_get_context_mode_data(mode, GLX_STENCIL_SIZE, &value);
format.d.stencil_size = (unsigned short) value;
_gl_get_context_mode_data(mode, GLX_DOUBLEBUFFER, &value);
format.d.doublebuffer = (value) ? 1: 0;
_gl_get_context_mode_data(mode, GLX_VISUAL_CAVEAT_EXT, &value);
switch (value) {
case GLX_SLOW_VISUAL_EXT:
case GLX_NON_CONFORMANT_VISUAL_EXT:
format.caveat = 1;
break;
default:
format.caveat = 0;
break;
}
_gl_get_context_mode_data(mode, GLX_SAMPLE_BUFFERS_ARB, &value);
if (value)
{
_gl_get_context_mode_data(mode, GLX_SAMPLES_ARB, &value);
format.d.samples = (unsigned short) (value > 1)? value: 1;
}
else
format.d.samples = 1;
format.u.uval = mode->visualID;
_glitz_add_format (screen_info, &format);
mode = mode->next;
}
}
void
glitz_glucose_query_formats (glitz_glucose_screen_info_t *screen_info)
{
int i;
_glitz_glucose_query_formats (screen_info);
if (!screen_info->n_formats)
return;
qsort (screen_info->formats, screen_info->n_formats,
sizeof (glitz_int_drawable_format_t), _glitz_glucose_format_compare);
for (i = 0; i < screen_info->n_formats; i++)
screen_info->formats[i].d.id = i;
}
glitz_drawable_format_t *
glitz_glucose_find_window_format (__GLXscreen *screen,
unsigned long mask,
const glitz_drawable_format_t *templ,
int count)
{
glitz_int_drawable_format_t itempl;
glitz_glucose_screen_info_t *screen_info =
glitz_glucose_screen_info_get (screen);
glitz_drawable_format_copy (templ, &itempl.d, mask);
itempl.types = GLITZ_DRAWABLE_TYPE_WINDOW_MASK;
mask |= GLITZ_INT_FORMAT_WINDOW_MASK;
return glitz_drawable_format_find (screen_info->formats,
screen_info->n_formats,
mask, &itempl, count);
}
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