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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_inlines.h"
#include "util/u_memory.h"
#include "pipe/p_screen.h"
#include "pipe/p_context.h"
#include "pipe/p_state.h"
#include "native_helper.h"
struct resource_surface {
struct pipe_screen *screen;
enum pipe_format format;
uint bind;
struct pipe_resource *resources[NUM_NATIVE_ATTACHMENTS];
uint resource_mask;
uint width, height;
};
struct resource_surface *
resource_surface_create(struct pipe_screen *screen,
enum pipe_format format, uint bind)
{
struct resource_surface *rsurf = CALLOC_STRUCT(resource_surface);
if (rsurf) {
rsurf->screen = screen;
rsurf->format = format;
rsurf->bind = bind;
}
return rsurf;
}
static void
resource_surface_free_resources(struct resource_surface *rsurf)
{
if (rsurf->resource_mask) {
int i;
for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
if (rsurf->resources[i])
pipe_resource_reference(&rsurf->resources[i], NULL);
}
rsurf->resource_mask = 0x0;
}
}
void
resource_surface_destroy(struct resource_surface *rsurf)
{
resource_surface_free_resources(rsurf);
FREE(rsurf);
}
boolean
resource_surface_set_size(struct resource_surface *rsurf,
uint width, uint height)
{
boolean changed = FALSE;
if (rsurf->width != width || rsurf->height != height) {
resource_surface_free_resources(rsurf);
rsurf->width = width;
rsurf->height = height;
changed = TRUE;
}
return changed;
}
void
resource_surface_get_size(struct resource_surface *rsurf,
uint *width, uint *height)
{
if (width)
*width = rsurf->width;
if (height)
*height = rsurf->height;
}
boolean
resource_surface_add_resources(struct resource_surface *rsurf,
uint resource_mask)
{
struct pipe_resource templ;
int i;
resource_mask &= ~rsurf->resource_mask;
if (!resource_mask)
return TRUE;
if (!rsurf->width || !rsurf->height)
return FALSE;
memset(&templ, 0, sizeof(templ));
templ.target = PIPE_TEXTURE_2D;
templ.format = rsurf->format;
templ.bind = rsurf->bind;
templ.width0 = rsurf->width;
templ.height0 = rsurf->height;
templ.depth0 = 1;
templ.array_size = 1;
for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
if (resource_mask & (1 <<i)) {
assert(!rsurf->resources[i]);
rsurf->resources[i] =
rsurf->screen->resource_create(rsurf->screen, &templ);
if (rsurf->resources[i])
rsurf->resource_mask |= 1 << i;
}
}
return ((rsurf->resource_mask & resource_mask) == resource_mask);
}
void
resource_surface_import_resource(struct resource_surface *rsurf,
enum native_attachment which,
struct pipe_resource *pres)
{
pipe_resource_reference(&rsurf->resources[which], pres);
rsurf->resource_mask |= 1 << which;
}
void
resource_surface_get_resources(struct resource_surface *rsurf,
struct pipe_resource **resources,
uint resource_mask)
{
int i;
for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
if (resource_mask & (1 << i)) {
resources[i] = NULL;
pipe_resource_reference(&resources[i], rsurf->resources[i]);
}
}
}
struct pipe_resource *
resource_surface_get_single_resource(struct resource_surface *rsurf,
enum native_attachment which)
{
struct pipe_resource *pres = NULL;
pipe_resource_reference(&pres, rsurf->resources[which]);
return pres;
}
static INLINE void
pointer_swap(const void **p1, const void **p2)
{
const void *tmp = *p1;
*p1 = *p2;
*p2 = tmp;
}
void
resource_surface_swap_buffers(struct resource_surface *rsurf,
enum native_attachment buf1,
enum native_attachment buf2,
boolean only_if_exist)
{
const uint buf1_bit = 1 << buf1;
const uint buf2_bit = 1 << buf2;
uint mask;
if (only_if_exist && !(rsurf->resources[buf1] && rsurf->resources[buf2]))
return;
pointer_swap((const void **) &rsurf->resources[buf1],
(const void **) &rsurf->resources[buf2]);
/* swap mask bits */
mask = rsurf->resource_mask & ~(buf1_bit | buf2_bit);
if (rsurf->resource_mask & buf1_bit)
mask |= buf2_bit;
if (rsurf->resource_mask & buf2_bit)
mask |= buf1_bit;
rsurf->resource_mask = mask;
}
boolean
resource_surface_present(struct resource_surface *rsurf,
enum native_attachment which,
void *winsys_drawable_handle)
{
struct pipe_resource *pres = rsurf->resources[which];
if (!pres)
return TRUE;
rsurf->screen->flush_frontbuffer(rsurf->screen,
pres, 0, 0, winsys_drawable_handle);
return TRUE;
}
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