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/*
* Copyright © 2005 Novell, Inc.
*
* 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
* Novell, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
* Novell, Inc. makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* NOVELL, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
* NO EVENT SHALL NOVELL, INC. 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>
*/
#ifdef HAVE_CONFIG_H
# include "../config.h"
#endif
#include "glitzint.h"
void
_glitz_context_init (glitz_context_t *context,
glitz_drawable_t *drawable)
{
glitz_drawable_reference (drawable);
context->ref_count = 1;
context->drawable = drawable;
context->closure = NULL;
context->lose_current = NULL;
}
void
_glitz_context_fini (glitz_context_t *context)
{
glitz_drawable_destroy (context->drawable);
}
glitz_context_t *
glitz_context_create (glitz_drawable_t *drawable,
glitz_drawable_format_t *format)
{
return drawable->backend->create_context (drawable, format);
}
slim_hidden_def(glitz_context_create);
void
glitz_context_destroy (glitz_context_t *context)
{
if (!context)
return;
context->ref_count--;
if (context->ref_count)
return;
context->drawable->backend->destroy_context (context);
}
slim_hidden_def(glitz_context_destroy);
void
glitz_context_reference (glitz_context_t *context)
{
if (!context)
return;
context->ref_count++;
}
slim_hidden_def(glitz_context_reference);
void
glitz_context_copy (glitz_context_t *src,
glitz_context_t *dst,
unsigned long mask)
{
src->drawable->backend->copy_context (src, dst, mask);
}
slim_hidden_def(glitz_context_copy);
void
glitz_context_set_user_data (glitz_context_t *context,
void *closure,
glitz_lose_current_function_t lose_current)
{
context->closure = closure;
context->lose_current = lose_current;
}
slim_hidden_def(glitz_context_set_user_data);
glitz_function_pointer_t
glitz_context_get_proc_address (glitz_context_t *context,
const char *name)
{
return context->drawable->backend->get_proc_address (context, name);
}
slim_hidden_def(glitz_context_get_proc_address);
void
glitz_context_make_current (glitz_context_t *context,
glitz_drawable_t *drawable)
{
glitz_lose_current_function_t lose_current;
lose_current = context->lose_current;
context->lose_current = 0;
if (drawable != context->drawable)
{
glitz_drawable_reference (drawable);
glitz_drawable_destroy (context->drawable);
context->drawable = drawable;
}
if (drawable->front)
{
if (GLITZ_REGION_NOTEMPTY (&drawable->front->drawable_damage))
{
glitz_surface_push_current (drawable->front,
GLITZ_DRAWABLE_CURRENT);
glitz_surface_pop_current (drawable->front);
}
glitz_surface_damage (drawable->front, NULL,
GLITZ_DAMAGE_TEXTURE_MASK |
GLITZ_DAMAGE_SOLID_MASK);
}
if (drawable->back)
{
if (GLITZ_REGION_NOTEMPTY (&drawable->back->drawable_damage))
{
glitz_surface_push_current (drawable->back,
GLITZ_DRAWABLE_CURRENT);
glitz_surface_pop_current (drawable->back);
}
glitz_surface_damage (drawable->back, NULL,
GLITZ_DAMAGE_TEXTURE_MASK |
GLITZ_DAMAGE_SOLID_MASK);
}
context->lose_current = lose_current;
drawable->backend->make_current (drawable, context);
}
slim_hidden_def(glitz_context_make_current);
void
glitz_context_bind_texture (glitz_context_t *context,
glitz_texture_object_t *texture)
{
glitz_gl_proc_address_list_t *gl = context->drawable->backend->gl;
if (GLITZ_REGION_NOTEMPTY (&texture->surface->texture_damage))
{
glitz_lose_current_function_t lose_current;
lose_current = context->lose_current;
context->lose_current = 0;
glitz_surface_push_current (texture->surface, GLITZ_CONTEXT_CURRENT);
_glitz_surface_sync_texture (texture->surface);
glitz_surface_pop_current (texture->surface);
context->lose_current = lose_current;
glitz_context_make_current (context, context->drawable);
}
gl->bind_texture (texture->surface->texture.target,
texture->surface->texture.name);
glitz_texture_ensure_parameters (gl,
&texture->surface->texture,
&texture->param);
}
slim_hidden_def(glitz_context_bind_texture);
void
glitz_context_draw_buffers (glitz_context_t *context,
const glitz_drawable_buffer_t *buffers,
int n)
{
unsigned int mask = 0;
#define FRONT_BIT (1 << 0)
#define BACK_BIT (1 << 1)
while (n--)
{
switch (*buffers++) {
case GLITZ_DRAWABLE_BUFFER_FRONT_COLOR:
mask |= FRONT_BIT;
break;
case GLITZ_DRAWABLE_BUFFER_BACK_COLOR:
mask |= BACK_BIT;
default:
break;
}
}
if (mask)
{
static const glitz_gl_enum_t mode[] = {
GLITZ_GL_FRONT,
GLITZ_GL_BACK,
GLITZ_GL_FRONT_AND_BACK
};
context->drawable->backend->draw_buffer (context->drawable,
mode[mask - 1]);
}
#undef FRONT_BIT
#undef BACK_BIT
}
slim_hidden_def(glitz_context_draw_buffers);
void
glitz_context_read_buffer (glitz_context_t *context,
const glitz_drawable_buffer_t buffer)
{
switch (buffer) {
case GLITZ_DRAWABLE_BUFFER_FRONT_COLOR:
context->drawable->backend->read_buffer (context->drawable,
GLITZ_GL_FRONT);
break;
case GLITZ_DRAWABLE_BUFFER_BACK_COLOR:
context->drawable->backend->read_buffer (context->drawable,
GLITZ_GL_BACK);
default:
break;
}
}
slim_hidden_def(glitz_context_read_buffer);
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