/**************************************************************************
*
* 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 "util/u_format.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"
#include "sp_screen.h"
#include "state_tracker/sw_winsys.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 );
}
static void
prepare_shader_sampling(
struct softpipe_context *sp,
unsigned num,
struct pipe_sampler_view **views,
unsigned shader_type,
struct pipe_resource *mapped_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS])
{
unsigned i;
uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS];
const void *addr;
assert(num
<= PIPE_MAX_SHADER_SAMPLER_VIEWS
); if (!num)
return;
for (i = 0; i < PIPE_MAX_SHADER_SAMPLER_VIEWS; i++) {
struct pipe_sampler_view *view = i < num ? views[i] : NULL;
if (view) {
struct pipe_resource *tex = view->texture;
struct softpipe_resource *sp_tex = softpipe_resource(tex);
unsigned width0 = tex->width0;
unsigned num_layers = tex->depth0;
unsigned first_level = 0;
unsigned last_level = 0;
/* We're referencing the texture's internal data, so save a
* reference to it.
*/
pipe_resource_reference(&mapped_tex[i], tex);
if (!sp_tex->dt) {
/* regular texture - setup array of mipmap level offsets */
struct pipe_resource *res = view->texture;
int j;
if (view->target != PIPE_BUFFER) {
first_level = view->u.tex.first_level;
last_level = view->u.tex.last_level;
assert(first_level
<= last_level
); assert(last_level
<= res
->last_level
); addr = sp_tex->data;
for (j = first_level; j <= last_level; j++) {
mip_offsets[j] = sp_tex->level_offset[j];
row_stride[j] = sp_tex->stride[j];
img_stride[j] = sp_tex->img_stride[j];
}
if (view->target == PIPE_TEXTURE_1D_ARRAY ||
view->target == PIPE_TEXTURE_2D_ARRAY ||
view->target == PIPE_TEXTURE_CUBE ||
view->target == PIPE_TEXTURE_CUBE_ARRAY) {
num_layers = view->u.tex.last_layer - view->u.tex.first_layer + 1;
for (j = first_level; j <= last_level; j++) {
mip_offsets[j] += view->u.tex.first_layer *
sp_tex->img_stride[j];
}
if (view->target == PIPE_TEXTURE_CUBE ||
view->target == PIPE_TEXTURE_CUBE_ARRAY) {
}
assert(view
->u.
tex.
first_layer <= view
->u.
tex.
last_layer); assert(view
->u.
tex.
last_layer < res
->array_size
); }
}
else {
unsigned view_blocksize = util_format_get_blocksize(view->format);
addr = sp_tex->data;
/* probably don't really need to fill that out */
mip_offsets[0] = 0;
row_stride[0] = 0;
img_stride[0] = 0;
/* everything specified in number of elements here. */
width0 = view->u.buf.last_element - view->u.buf.first_element + 1;
addr = (uint8_t *)addr + view->u.buf.first_element *
view_blocksize;
assert(view
->u.
buf.
first_element <= view
->u.
buf.
last_element); assert(view
->u.
buf.
last_element * view_blocksize
< res
->width0
); }
}
else {
/* display target texture/surface */
/*
* XXX: Where should this be unmapped?
*/
struct softpipe_screen *screen = softpipe_screen(tex->screen);
struct sw_winsys *winsys = screen->winsys;
addr = winsys->displaytarget_map(winsys, sp_tex->dt,
PIPE_TRANSFER_READ);
row_stride[0] = sp_tex->stride[0];
img_stride[0] = sp_tex->img_stride[0];
mip_offsets[0] = 0;
}
draw_set_mapped_texture(sp->draw,
shader_type,
i,
width0, tex->height0, num_layers,
first_level, last_level,
addr,
row_stride, img_stride, mip_offsets);
}
}
}
/**
* Called during state validation when SP_NEW_TEXTURE is set.
*/
void
softpipe_prepare_vertex_sampling(struct softpipe_context *sp,
unsigned num,
struct pipe_sampler_view **views)
{
prepare_shader_sampling(sp, num, views, PIPE_SHADER_VERTEX,
sp->mapped_vs_tex);
}
void
softpipe_cleanup_vertex_sampling(struct softpipe_context *ctx)
{
unsigned i;
for (i = 0; i < Elements(ctx->mapped_vs_tex); i++) {
pipe_resource_reference(&ctx->mapped_vs_tex[i], NULL);
}
}
/**
* Called during state validation when SP_NEW_TEXTURE is set.
*/
void
softpipe_prepare_geometry_sampling(struct softpipe_context *sp,
unsigned num,
struct pipe_sampler_view **views)
{
prepare_shader_sampling(sp, num, views, PIPE_SHADER_GEOMETRY,
sp->mapped_gs_tex);
}
void
softpipe_cleanup_geometry_sampling(struct softpipe_context *ctx)
{
unsigned i;
for (i = 0; i < Elements(ctx->mapped_gs_tex); i++) {
pipe_resource_reference(&ctx->mapped_gs_tex[i], NULL);
}
}
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;
}