/**************************************************************************
*
* Copyright 2011 Lauri Kasanen
* 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 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.
*
**************************************************************************/
#include "pipe/p_compiler.h"
#include "postprocess/filters.h"
#include "postprocess/pp_private.h"
#include "pipe/p_screen.h"
#include "util/u_inlines.h"
#include "util/u_math.h"
#include "util/u_debug.h"
#include "util/u_memory.h"
#include "cso_cache/cso_context.h"
/** Initialize the post-processing queue. */
struct pp_queue_t *
pp_init(struct pipe_context *pipe, const unsigned int *enabled,
struct cso_context *cso)
{
unsigned int num_filters = 0;
unsigned int curpos = 0, i, tmp_req = 0;
struct pp_queue_t *ppq;
pp_debug("Initializing the post-processing queue.\n");
/* How many filters were requested? */
for (i = 0; i < PP_FILTERS; i++) {
if (enabled[i])
num_filters++;
}
if (num_filters == 0)
return NULL;
ppq = CALLOC(1, sizeof(struct pp_queue_t));
if (ppq == NULL) {
pp_debug("Unable to allocate memory for ppq.\n");
goto error;
}
ppq->pp_queue = CALLOC(num_filters, sizeof(pp_func));
if (ppq->pp_queue == NULL) {
pp_debug("Unable to allocate memory for pp_queue.\n");
goto error;
}
ppq->shaders = CALLOC(num_filters, sizeof(void *));
ppq->filters = CALLOC(num_filters, sizeof(unsigned int));
if ((ppq->shaders == NULL) ||
(ppq->filters == NULL)) {
pp_debug("Unable to allocate memory for shaders and filter arrays.\n");
goto error;
}
ppq->p = pp_init_prog(ppq, pipe, cso);
if (ppq->p == NULL) {
pp_debug("pp_init_prog returned NULL.\n");
goto error;
}
/* Add the enabled filters to the queue, in order */
curpos = 0;
for (i = 0; i < PP_FILTERS; i++) {
if (enabled[i]) {
ppq->pp_queue[curpos] = pp_filters[i].main;
tmp_req = MAX2(tmp_req, pp_filters[i].inner_tmps);
ppq->filters[curpos] = i;
if (pp_filters[i].shaders) {
ppq->shaders[curpos] =
CALLOC(pp_filters[i].shaders + 1, sizeof(void *));
if (!ppq->shaders[curpos]) {
pp_debug("Unable to allocate memory for shader list.\n");
goto error;
}
}
/* Call the initialization function for the filter. */
if (!pp_filters[i].init(ppq, curpos, enabled[i])) {
pp_debug("Initialization for filter %u failed.\n", i);
goto error;
}
curpos++;
}
}
ppq->n_filters = curpos;
ppq->n_tmp = (curpos > 2 ? 2 : 1);
ppq->n_inner_tmp = tmp_req;
ppq->fbos_init = false;
for (i = 0; i < curpos; i++)
ppq->shaders[i][0] = ppq->p->passvs;
pp_debug("Queue successfully allocated. %u filter(s).\n", curpos);
return ppq;
error:
if (ppq) {
/* Assign curpos, since we only need to destroy initialized filters. */
ppq->n_filters = curpos;
/* Call the common free function which must handle partial initialization. */
pp_free(ppq);
}
return NULL;
}
/** Free any allocated FBOs (temp buffers). Called after resizing for example. */
void
pp_free_fbos(struct pp_queue_t *ppq)
{
unsigned int i;
if (!ppq->fbos_init)
return;
for (i = 0; i < ppq->n_tmp; i++) {
pipe_surface_reference(&ppq->tmps[i], NULL);
pipe_resource_reference(&ppq->tmp[i], NULL);
}
for (i = 0; i < ppq->n_inner_tmp; i++) {
pipe_surface_reference(&ppq->inner_tmps[i], NULL);
pipe_resource_reference(&ppq->inner_tmp[i], NULL);
}
pipe_surface_reference(&ppq->stencils, NULL);
pipe_resource_reference(&ppq->stencil, NULL);
ppq->fbos_init = false;
}
/**
* Free the pp queue. Called on context termination and failure in
* pp_init.
*/
void
pp_free(struct pp_queue_t *ppq)
{
unsigned int i, j;
if (!ppq)
return;
pp_free_fbos(ppq);
if (ppq->p) {
if (ppq->p->pipe && ppq->filters && ppq->shaders) {
for (i = 0; i < ppq->n_filters; i++) {
unsigned int filter = ppq->filters[i];
if (ppq->shaders[i] == NULL) {
continue;
}
/*
* Common shader destruction code for all postprocessing
* filters.
*/
for (j = 0; j < pp_filters[filter].shaders; j++) {
if (ppq->shaders[i][j] == NULL) {
/* We reached the end of initialized shaders. */
break;
}
if (ppq->shaders[i][j] == ppq->p->passvs) {
continue;
}
if (j >= pp_filters[filter].verts) {
assert(ppq
->p
->pipe
->delete_fs_state
); ppq->p->pipe->delete_fs_state(ppq->p->pipe,
ppq->shaders[i][j]);
ppq->shaders[i][j] = NULL;
} else {
assert(ppq
->p
->pipe
->delete_vs_state
); ppq->p->pipe->delete_vs_state(ppq->p->pipe,
ppq->shaders[i][j]);
ppq->shaders[i][j] = NULL;
}
}
/* Finally call each filter type's free functionality. */
pp_filters
[filter
].
free(ppq
, i
); }
}
FREE(ppq->p);
}
/*
* Handle partial initialization for common resource destruction
* in the create path.
*/
FREE(ppq->filters);
FREE(ppq->shaders);
FREE(ppq->pp_queue);
FREE(ppq);
pp_debug("Queue taken down.\n");
}
/** Internal debug function. Should be available to final users. */
void
pp_debug(const char *fmt, ...)
{
va_list ap;
if (!debug_get_bool_option("PP_DEBUG", FALSE))
return;
_debug_vprintf(fmt, ap);
}
/** Allocate the temp FBOs. Called on makecurrent and resize. */
void
pp_init_fbos(struct pp_queue_t *ppq, unsigned int w,
unsigned int h)
{
struct pp_program *p = ppq->p; /* The lazy will inherit the earth */
unsigned int i;
struct pipe_resource tmp_res;
if (ppq->fbos_init)
return;
pp_debug("Initializing FBOs, size %ux%u\n", w, h);
pp_debug("Requesting %u temps and %u inner temps\n", ppq->n_tmp,
ppq->n_inner_tmp);
memset(&tmp_res
, 0, sizeof(tmp_res
)); tmp_res.target = PIPE_TEXTURE_2D;
tmp_res.format = p->surf.format = PIPE_FORMAT_B8G8R8A8_UNORM;
tmp_res.width0 = w;
tmp_res.height0 = h;
tmp_res.depth0 = 1;
tmp_res.array_size = 1;
tmp_res.last_level = 0;
tmp_res.bind = PIPE_BIND_RENDER_TARGET;
if (!p->screen->is_format_supported(p->screen, tmp_res.format,
tmp_res.target, 1, tmp_res.bind))
pp_debug("Temp buffers' format fail\n");
for (i = 0; i < ppq->n_tmp; i++) {
ppq->tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
ppq->tmps[i] = p->pipe->create_surface(p->pipe, ppq->tmp[i], &p->surf);
if (!ppq->tmp[i] || !ppq->tmps[i])
goto error;
}
for (i = 0; i < ppq->n_inner_tmp; i++) {
ppq->inner_tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
ppq->inner_tmps[i] = p->pipe->create_surface(p->pipe,
ppq->inner_tmp[i],
&p->surf);
if (!ppq->inner_tmp[i] || !ppq->inner_tmps[i])
goto error;
}
tmp_res.bind = PIPE_BIND_DEPTH_STENCIL;
tmp_res.format = p->surf.format = PIPE_FORMAT_S8_UINT_Z24_UNORM;
if (!p->screen->is_format_supported(p->screen, tmp_res.format,
tmp_res.target, 1, tmp_res.bind)) {
tmp_res.format = p->surf.format = PIPE_FORMAT_Z24_UNORM_S8_UINT;
if (!p->screen->is_format_supported(p->screen, tmp_res.format,
tmp_res.target, 1, tmp_res.bind))
pp_debug("Temp Sbuffer format fail\n");
}
ppq->stencil = p->screen->resource_create(p->screen, &tmp_res);
ppq->stencils = p->pipe->create_surface(p->pipe, ppq->stencil, &p->surf);
if (!ppq->stencil || !ppq->stencils)
goto error;
p->framebuffer.width = w;
p->framebuffer.height = h;
p->viewport.scale[0] = p->viewport.translate[0] = (float) w / 2.0f;
p->viewport.scale[1] = p->viewport.translate[1] = (float) h / 2.0f;
ppq->fbos_init = true;
return;
error:
pp_debug("Failed to allocate temp buffers!\n");
}