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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.
*
**************************************************************************/
/*
* Management of pipe objects (surface / pipe / fences) used by DRI1 and DRISW.
*
* Author: Keith Whitwell <keithw@vmware.com>
* Author: Jakob Bornecrantz <wallbraker@gmail.com>
*/
#include "util/u_inlines.h"
#include "pipe/p_context.h"
#include "dri_screen.h"
#include "dri_context.h"
#include "dri_drawable.h"
#include "dri1_helper.h"
struct pipe_fence_handle *
dri1_swap_fences_pop_front(struct dri_drawable *draw)
{
struct pipe_screen *screen = dri_screen(draw->sPriv)->pipe_screen;
struct pipe_fence_handle *fence = NULL;
if (draw->cur_fences >= draw->desired_fences) {
screen->fence_reference(screen, &fence, draw->swap_fences[draw->tail]);
screen->fence_reference(screen, &draw->swap_fences[draw->tail++], NULL);
--draw->cur_fences;
draw->tail &= DRI_SWAP_FENCES_MASK;
}
return fence;
}
void
dri1_swap_fences_push_back(struct dri_drawable *draw,
struct pipe_fence_handle *fence)
{
struct pipe_screen *screen = dri_screen(draw->sPriv)->pipe_screen;
if (!fence)
return;
if (draw->cur_fences < DRI_SWAP_FENCES_MAX) {
draw->cur_fences++;
screen->fence_reference(screen, &draw->swap_fences[draw->head++],
fence);
draw->head &= DRI_SWAP_FENCES_MASK;
}
}
void
dri1_swap_fences_clear(struct dri_drawable *drawable)
{
struct pipe_screen *screen = dri_screen(drawable->sPriv)->pipe_screen;
struct pipe_fence_handle *fence;
while (drawable->cur_fences) {
fence = dri1_swap_fences_pop_front(drawable);
screen->fence_reference(screen, &fence, NULL);
}
}
struct pipe_surface *
dri1_get_pipe_surface(struct dri_drawable *drawable, struct pipe_texture *ptex)
{
struct pipe_screen *pipe_screen = dri_screen(drawable->sPriv)->pipe_screen;
struct pipe_surface *psurf = drawable->dri1_surface;
if (!psurf || psurf->texture != ptex) {
pipe_surface_reference(&drawable->dri1_surface, NULL);
drawable->dri1_surface = pipe_screen->get_tex_surface(pipe_screen,
ptex, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_READ);
psurf = drawable->dri1_surface;
}
return psurf;
}
void
dri1_destroy_pipe_surface(struct dri_drawable *drawable)
{
pipe_surface_reference(&drawable->dri1_surface, NULL);
}
struct pipe_context *
dri1_get_pipe_context(struct dri_screen *screen)
{
struct pipe_context *pipe = screen->dri1_pipe;
if (!pipe) {
screen->dri1_pipe =
screen->pipe_screen->context_create(screen->pipe_screen, NULL);
pipe = screen->dri1_pipe;
}
return pipe;
}
void
dri1_destroy_pipe_context(struct dri_screen *screen)
{
if (screen->dri1_pipe)
screen->dri1_pipe->destroy(screen->dri1_pipe);
}
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