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/**************************************************************************
*
* Copyright 2009, VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/*
* Author: Keith Whitwell <keithw@vmware.com>
* Author: Jakob Bornecrantz <wallbraker@gmail.com>
*/
#include "dri_screen.h"
#include "dri_context.h"
#include "dri_drawable.h"
#include "pipe/p_screen.h"
#include "util/u_format.h"
#include "util/u_memory.h"
#include "util/u_inlines.h"
static boolean
dri_st_framebuffer_validate(struct st_framebuffer_iface *stfbi,
const enum st_attachment_type *statts,
unsigned count,
struct pipe_resource **out)
{
struct dri_drawable *drawable =
(struct dri_drawable *) stfbi->st_manager_private;
struct dri_screen *screen = dri_screen(drawable->sPriv);
unsigned statt_mask, new_mask;
boolean new_stamp;
int i;
statt_mask = 0x0;
for (i = 0; i < count; i++)
statt_mask |= (1 << statts[i]);
/* record newly allocated textures */
new_mask = (statt_mask & ~drawable->texture_mask);
/*
* dPriv->pStamp is the server stamp. It should be accessed with a lock, at
* least for DRI1. dPriv->lastStamp is the client stamp. It has the value
* of the server stamp when last checked.
*/
new_stamp = (drawable->texture_stamp != drawable->dPriv->lastStamp);
if (new_stamp || new_mask || screen->broken_invalidate) {
if (new_stamp && drawable->update_drawable_info)
drawable->update_drawable_info(drawable);
drawable->allocate_textures(drawable, statts, count);
/* add existing textures */
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
if (drawable->textures[i])
statt_mask |= (1 << i);
}
drawable->texture_stamp = drawable->dPriv->lastStamp;
drawable->texture_mask = statt_mask;
}
if (!out)
return TRUE;
for (i = 0; i < count; i++) {
out[i] = NULL;
pipe_resource_reference(&out[i], drawable->textures[statts[i]]);
}
return TRUE;
}
static boolean
dri_st_framebuffer_flush_front(struct st_framebuffer_iface *stfbi,
enum st_attachment_type statt)
{
struct dri_drawable *drawable =
(struct dri_drawable *) stfbi->st_manager_private;
/* XXX remove this and just set the correct one on the framebuffer */
drawable->flush_frontbuffer(drawable, statt);
return TRUE;
}
/**
* This is called when we need to set up GL rendering to a new X window.
*/
boolean
dri_create_buffer(__DRIscreen * sPriv,
__DRIdrawable * dPriv,
const __GLcontextModes * visual, boolean isPixmap)
{
struct dri_screen *screen = sPriv->private;
struct dri_drawable *drawable = NULL;
if (isPixmap)
goto fail; /* not implemented */
drawable = CALLOC_STRUCT(dri_drawable);
if (drawable == NULL)
goto fail;
dri_fill_st_visual(&drawable->stvis, screen, visual);
/* setup the st_framebuffer_iface */
drawable->base.visual = &drawable->stvis;
drawable->base.flush_front = dri_st_framebuffer_flush_front;
drawable->base.validate = dri_st_framebuffer_validate;
drawable->base.st_manager_private = (void *) drawable;
drawable->sPriv = sPriv;
drawable->dPriv = dPriv;
dPriv->driverPrivate = (void *)drawable;
return GL_TRUE;
fail:
FREE(drawable);
return GL_FALSE;
}
void
dri_destroy_buffer(__DRIdrawable * dPriv)
{
struct dri_drawable *drawable = dri_drawable(dPriv);
int i;
pipe_surface_reference(&drawable->drisw_surface, NULL);
for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
pipe_resource_reference(&drawable->textures[i], NULL);
FREE(drawable);
}
/**
* Validate the texture at an attachment. Allocate the texture if it does not
* exist.
*/
void
dri_drawable_validate_att(struct dri_drawable *drawable,
enum st_attachment_type statt)
{
enum st_attachment_type statts[ST_ATTACHMENT_COUNT];
unsigned i, count = 0;
/* check if buffer already exists */
if (drawable->texture_mask & (1 << statt))
return;
/* make sure DRI2 does not destroy existing buffers */
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
if (drawable->texture_mask & (1 << i)) {
statts[count++] = i;
}
}
statts[count++] = statt;
drawable->texture_stamp = drawable->dPriv->lastStamp - 1;
/* this calles into the manager */
drawable->base.validate(&drawable->base, statts, count, NULL);
}
/**
* Get the format and binding of an attachment.
*/
void
dri_drawable_get_format(struct dri_drawable *drawable,
enum st_attachment_type statt,
enum pipe_format *format,
unsigned *bind)
{
switch (statt) {
case ST_ATTACHMENT_FRONT_LEFT:
case ST_ATTACHMENT_BACK_LEFT:
case ST_ATTACHMENT_FRONT_RIGHT:
case ST_ATTACHMENT_BACK_RIGHT:
*format = drawable->stvis.color_format;
*bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
break;
case ST_ATTACHMENT_DEPTH_STENCIL:
*format = drawable->stvis.depth_stencil_format;
*bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */
break;
default:
*format = PIPE_FORMAT_NONE;
*bind = 0;
break;
}
}
/* vim: set sw=3 ts=8 sts=3 expandtab: */
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