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/*
* Mesa 3-D graphics library
* Version: 7.9
*
* Copyright (C) 2010 LunarG Inc.
*
* 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, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors:
* Chia-I Wu <olv@lunarg.com>
*/
#include "util/u_memory.h"
#include "util/u_inlines.h"
#include "util/u_format.h"
#include "util/u_debug.h"
#include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
#include "dri_screen.h"
#include "dri_context.h"
#include "dri_drawable.h"
#include "dri_st_api.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) {
if (new_stamp && screen->update_drawable_info)
screen->update_drawable_info(drawable);
screen->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;
struct dri_screen *screen = dri_screen(drawable->sPriv);
/* XXX remove this and just set the correct one on the framebuffer */
screen->flush_frontbuffer(drawable, statt);
return TRUE;
}
/**
* Init a framebuffer from the given drawable.
*/
void
dri_init_st_framebuffer(struct dri_drawable *drawable)
{
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;
}
/**
* Destroy a framebuffer.
*/
void
dri_close_st_framebuffer(struct dri_drawable *drawable)
{
int i;
for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
pipe_resource_reference(&drawable->textures[i], NULL);
}
/**
* Validate the texture at an attachment. Allocate the texture if it does not
* exist.
*/
void
dri_st_framebuffer_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);
}
static boolean
dri_st_manager_get_egl_image(struct st_manager *smapi,
struct st_egl_image *stimg)
{
struct dri_context *ctx =
(struct dri_context *)stimg->stctxi->st_manager_private;
struct dri_screen *screen = dri_screen(ctx->sPriv);
__DRIimage *img = NULL;
if (screen->lookup_egl_image) {
img = screen->lookup_egl_image(ctx, stimg->egl_image);
}
if (!img)
return FALSE;
stimg->texture = NULL;
pipe_resource_reference(&stimg->texture, img->texture);
stimg->face = img->face;
stimg->level = img->level;
stimg->zslice = img->zslice;
return TRUE;
}
/**
* Create a state tracker manager from the given screen.
*/
boolean
dri_init_st_manager(struct dri_screen *screen)
{
screen->base.screen = screen->pipe_screen;
screen->base.get_egl_image = dri_st_manager_get_egl_image;
screen->st_api = st_gl_api_create();
if (!screen->st_api)
return FALSE;
return TRUE;
}
void
dri_close_st_manager(struct dri_screen *screen)
{
if (screen->st_api && screen->st_api->destroy)
screen->st_api->destroy(screen->st_api);
}
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