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/**************************************************************************
*
* Copyright 2007 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.
*
**************************************************************************/
/* Authors:
* Brian Paul
*/
#include "util/u_memory.h"
#include "util/u_inlines.h"
#include "draw/draw_context.h"
#include "sp_context.h"
#include "sp_state.h"
#include "sp_texture.h"
#include "sp_tex_sample.h"
#include "sp_tex_tile_cache.h"
/**
* Bind a range [start, start+num-1] of samplers for a shader stage.
*/
static void
softpipe_bind_sampler_states(struct pipe_context *pipe,
unsigned shader,
unsigned start,
unsigned num,
void **samplers)
{
struct softpipe_context *softpipe = softpipe_context(pipe);
unsigned i;
assert(shader < PIPE_SHADER_TYPES);
assert(start + num <= Elements(softpipe->samplers[shader]));
draw_flush(softpipe->draw);
/* set the new samplers */
for (i = 0; i < num; i++) {
softpipe->samplers[shader][start + i] = samplers[i];
}
/* find highest non-null samplers[] entry */
{
unsigned j = MAX2(softpipe->num_samplers[shader], start + num);
while (j > 0 && softpipe->samplers[shader][j - 1] == NULL)
j--;
softpipe->num_samplers[shader] = j;
}
if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) {
draw_set_samplers(softpipe->draw,
shader,
softpipe->samplers[shader],
softpipe->num_samplers[shader]);
}
softpipe->dirty |= SP_NEW_SAMPLER;
}
static void
softpipe_sampler_view_destroy(struct pipe_context *pipe,
struct pipe_sampler_view *view)
{
pipe_resource_reference(&view->texture, NULL);
FREE(view);
}
void
softpipe_set_sampler_views(struct pipe_context *pipe,
unsigned shader,
unsigned start,
unsigned num,
struct pipe_sampler_view **views)
{
struct softpipe_context *softpipe = softpipe_context(pipe);
uint i;
assert(shader < PIPE_SHADER_TYPES);
assert(start + num <= Elements(softpipe->sampler_views[shader]));
draw_flush(softpipe->draw);
/* set the new sampler views */
for (i = 0; i < num; i++) {
struct sp_sampler_view *sp_sviewsrc;
struct sp_sampler_view *sp_sviewdst =
&softpipe->tgsi.sampler[shader]->sp_sview[start + i];
struct pipe_sampler_view **pview = &softpipe->sampler_views[shader][start + i];
pipe_sampler_view_reference(pview, views[i]);
sp_tex_tile_cache_set_sampler_view(softpipe->tex_cache[shader][start + i],
views[i]);
/*
* We don't really have variants, however some bits are different per shader,
* so just copy?
*/
sp_sviewsrc = (struct sp_sampler_view *)*pview;
if (sp_sviewsrc) {
memcpy(sp_sviewdst, sp_sviewsrc, sizeof(*sp_sviewsrc));
sp_sviewdst->compute_lambda = softpipe_get_lambda_func(&sp_sviewdst->base, shader);
sp_sviewdst->cache = softpipe->tex_cache[shader][start + i];
}
else {
memset(sp_sviewdst, 0, sizeof(*sp_sviewsrc));
}
}
/* find highest non-null sampler_views[] entry */
{
unsigned j = MAX2(softpipe->num_sampler_views[shader], start + num);
while (j > 0 && softpipe->sampler_views[shader][j - 1] == NULL)
j--;
softpipe->num_sampler_views[shader] = j;
}
if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) {
draw_set_sampler_views(softpipe->draw,
shader,
softpipe->sampler_views[shader],
softpipe->num_sampler_views[shader]);
}
softpipe->dirty |= SP_NEW_TEXTURE;
}
static void
softpipe_delete_sampler_state(struct pipe_context *pipe,
void *sampler)
{
FREE( sampler );
}
void
softpipe_init_sampler_funcs(struct pipe_context *pipe)
{
pipe->create_sampler_state = softpipe_create_sampler_state;
pipe->bind_sampler_states = softpipe_bind_sampler_states;
pipe->delete_sampler_state = softpipe_delete_sampler_state;
pipe->create_sampler_view = softpipe_create_sampler_view;
pipe->set_sampler_views = softpipe_set_sampler_views;
pipe->sampler_view_destroy = softpipe_sampler_view_destroy;
}
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