/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 TUNGSTEN GRAPHICS 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_inlines.h"
#include "util/u_memory.h"
#include "draw/draw_context.h"
#include "lp_context.h"
#include "lp_screen.h"
#include "lp_state.h"
#include "lp_debug.h"
#include "state_tracker/sw_winsys.h"
static void *
llvmpipe_create_sampler_state(struct pipe_context *pipe,
const struct pipe_sampler_state *sampler)
{
struct pipe_sampler_state *state = mem_dup(sampler, sizeof *sampler);
if (LP_PERF & PERF_NO_MIP_LINEAR) {
if (state->min_mip_filter == PIPE_TEX_MIPFILTER_LINEAR)
state->min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
}
if (LP_PERF & PERF_NO_MIPMAPS)
state->min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
if (LP_PERF & PERF_NO_LINEAR) {
state->mag_img_filter = PIPE_TEX_FILTER_NEAREST;
state->min_img_filter = PIPE_TEX_FILTER_NEAREST;
}
return state;
}
static void
llvmpipe_bind_sampler_states(struct pipe_context *pipe,
unsigned shader,
unsigned start,
unsigned num,
void **samplers)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
unsigned i;
assert(shader
< PIPE_SHADER_TYPES
);
assert(start
+ num
<= Elements
(llvmpipe
->samplers
[shader
]));
/* Check for no-op */
if (start + num <= llvmpipe->num_samplers[shader] &&
!memcmp(llvmpipe
->samplers
[shader
] + start
, samplers
,
num * sizeof(void *))) {
return;
}
draw_flush(llvmpipe->draw);
/* set the new samplers */
for (i = 0; i < num; i++) {
llvmpipe->samplers[shader][start + i] = samplers[i];
}
/* find highest non-null samplers[] entry */
{
unsigned j = MAX2(llvmpipe->num_samplers[shader], start + num);
while (j > 0 && llvmpipe->samplers[shader][j - 1] == NULL)
j--;
llvmpipe->num_samplers[shader] = j;
}
if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) {
draw_set_samplers(llvmpipe->draw,
shader,
llvmpipe->samplers[shader],
llvmpipe->num_samplers[shader]);
}
llvmpipe->dirty |= LP_NEW_SAMPLER;
}
static void
llvmpipe_bind_fragment_sampler_states(struct pipe_context *pipe,
unsigned num, void **samplers)
{
llvmpipe_bind_sampler_states(pipe, PIPE_SHADER_FRAGMENT, 0, num, samplers);
}
static void
llvmpipe_bind_vertex_sampler_states(struct pipe_context *pipe,
unsigned num, void **samplers)
{
llvmpipe_bind_sampler_states(pipe, PIPE_SHADER_VERTEX, 0, num, samplers);
}
static void
llvmpipe_bind_geometry_sampler_states(struct pipe_context *pipe,
unsigned num, void **samplers)
{
llvmpipe_bind_sampler_states(pipe, PIPE_SHADER_GEOMETRY, 0, num, samplers);
}
static void
llvmpipe_set_sampler_views(struct pipe_context *pipe,
unsigned shader,
unsigned start,
unsigned num,
struct pipe_sampler_view **views)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
uint i;
assert(num
<= PIPE_MAX_SHADER_SAMPLER_VIEWS
);
assert(shader
< PIPE_SHADER_TYPES
);
assert(start
+ num
<= Elements
(llvmpipe
->sampler_views
[shader
]));
/* Check for no-op */
if (start + num <= llvmpipe->num_sampler_views[shader] &&
!memcmp(llvmpipe
->sampler_views
[shader
] + start
, views
,
num * sizeof(struct pipe_sampler_view *))) {
return;
}
draw_flush(llvmpipe->draw);
/* set the new sampler views */
for (i = 0; i < num; i++) {
pipe_sampler_view_reference(&llvmpipe->sampler_views[shader][start + i],
views[i]);
}
/* find highest non-null sampler_views[] entry */
{
unsigned j = MAX2(llvmpipe->num_sampler_views[shader], start + num);
while (j > 0 && llvmpipe->sampler_views[shader][j - 1] == NULL)
j--;
llvmpipe->num_sampler_views[shader] = j;
}
if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) {
draw_set_sampler_views(llvmpipe->draw,
shader,
llvmpipe->sampler_views[shader],
llvmpipe->num_sampler_views[shader]);
}
llvmpipe->dirty |= LP_NEW_SAMPLER_VIEW;
}
static void
llvmpipe_set_fragment_sampler_views(struct pipe_context *pipe,
unsigned num,
struct pipe_sampler_view **views)
{
llvmpipe_set_sampler_views(pipe, PIPE_SHADER_FRAGMENT, 0, num, views);
}
static void
llvmpipe_set_vertex_sampler_views(struct pipe_context *pipe,
unsigned num,
struct pipe_sampler_view **views)
{
llvmpipe_set_sampler_views(pipe, PIPE_SHADER_VERTEX, 0, num, views);
}
static void
llvmpipe_set_geometry_sampler_views(struct pipe_context *pipe,
unsigned num,
struct pipe_sampler_view **views)
{
llvmpipe_set_sampler_views(pipe, PIPE_SHADER_GEOMETRY, 0, num, views);
}
static struct pipe_sampler_view *
llvmpipe_create_sampler_view(struct pipe_context *pipe,
struct pipe_resource *texture,
const struct pipe_sampler_view *templ)
{
struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view);
/*
* XXX we REALLY want to see the correct bind flag here but the OpenGL
* state tracker can't guarantee that at least for texture buffer objects.
*/
if (!(texture->bind & PIPE_BIND_SAMPLER_VIEW))
debug_printf("Illegal sampler view creation without bind flag\n");
if (view) {
*view = *templ;
view->reference.count = 1;
view->texture = NULL;
pipe_resource_reference(&view->texture, texture);
view->context = pipe;
}
return view;
}
static void
llvmpipe_sampler_view_destroy(struct pipe_context *pipe,
struct pipe_sampler_view *view)
{
pipe_resource_reference(&view->texture, NULL);
FREE(view);
}
static void
llvmpipe_delete_sampler_state(struct pipe_context *pipe,
void *sampler)
{
FREE( sampler );
}
static void
prepare_shader_sampling(
struct llvmpipe_context *lp,
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 llvmpipe_resource *lp_tex = llvmpipe_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 (!lp_tex->dt) {
/* regular texture - setup array of mipmap level offsets */
struct pipe_resource *res = view->texture;
int j;
void *mip_ptr;
if (llvmpipe_resource_is_texture(res)) {
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
);
/* must trigger allocation first before we can get base ptr */
/* XXX this may fail due to OOM ? */
mip_ptr = llvmpipe_get_texture_image_all(lp_tex, view->u.tex.first_level,
LP_TEX_USAGE_READ);
addr = lp_tex->linear_img.data;
for (j = first_level; j <= last_level; j++) {
mip_ptr = llvmpipe_get_texture_image_all(lp_tex, j,
LP_TEX_USAGE_READ);
mip_offsets[j] = (uint8_t *)mip_ptr - (uint8_t *)addr;
/*
* could get mip offset directly but need call above to
* invoke tiled->linear conversion.
*/
assert(lp_tex
->linear_mip_offsets
[j
] == mip_offsets
[j
]);
row_stride[j] = lp_tex->row_stride[j];
img_stride[j] = lp_tex->img_stride[j];
}
if (res->target == PIPE_TEXTURE_1D_ARRAY ||
res->target == PIPE_TEXTURE_2D_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 *
lp_tex->img_stride[j];
}
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);
mip_ptr = lp_tex->data;
addr = mip_ptr;
/* probably don't really need to fill that out */
mip_offsets[0] = 0;
row_stride[0] = 0;
row_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 llvmpipe_screen *screen = llvmpipe_screen(tex->screen);
struct sw_winsys *winsys = screen->winsys;
addr = winsys->displaytarget_map(winsys, lp_tex->dt,
PIPE_TRANSFER_READ);
row_stride[0] = lp_tex->row_stride[0];
img_stride[0] = lp_tex->img_stride[0];
mip_offsets[0] = 0;
}
draw_set_mapped_texture(lp->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 LP_NEW_SAMPLER_VIEW is set.
*/
void
llvmpipe_prepare_vertex_sampling(struct llvmpipe_context *lp,
unsigned num,
struct pipe_sampler_view **views)
{
prepare_shader_sampling(lp, num, views, PIPE_SHADER_VERTEX,
lp->mapped_vs_tex);
}
void
llvmpipe_cleanup_vertex_sampling(struct llvmpipe_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 LP_NEW_SAMPLER_VIEW is set.
*/
void
llvmpipe_prepare_geometry_sampling(struct llvmpipe_context *lp,
unsigned num,
struct pipe_sampler_view **views)
{
prepare_shader_sampling(lp, num, views, PIPE_SHADER_GEOMETRY,
lp->mapped_gs_tex);
}
void
llvmpipe_cleanup_geometry_sampling(struct llvmpipe_context *ctx)
{
unsigned i;
for (i = 0; i < Elements(ctx->mapped_gs_tex); i++) {
pipe_resource_reference(&ctx->mapped_gs_tex[i], NULL);
}
}
void
llvmpipe_init_sampler_funcs(struct llvmpipe_context *llvmpipe)
{
llvmpipe->pipe.create_sampler_state = llvmpipe_create_sampler_state;
llvmpipe->pipe.bind_fragment_sampler_states = llvmpipe_bind_fragment_sampler_states;
llvmpipe->pipe.bind_vertex_sampler_states = llvmpipe_bind_vertex_sampler_states;
llvmpipe->pipe.bind_geometry_sampler_states = llvmpipe_bind_geometry_sampler_states;
llvmpipe->pipe.set_fragment_sampler_views = llvmpipe_set_fragment_sampler_views;
llvmpipe->pipe.set_vertex_sampler_views = llvmpipe_set_vertex_sampler_views;
llvmpipe->pipe.set_geometry_sampler_views = llvmpipe_set_geometry_sampler_views;
llvmpipe->pipe.create_sampler_view = llvmpipe_create_sampler_view;
llvmpipe->pipe.sampler_view_destroy = llvmpipe_sampler_view_destroy;
llvmpipe->pipe.delete_sampler_state = llvmpipe_delete_sampler_state;
}