/**************************************************************************
*
* 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_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,
enum pipe_shader_type shader,
unsigned start,
unsigned num,
void **samplers)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
unsigned i;
assert(shader < PIPE_SHADER_TYPES);
assert(start + num <= ARRAY_SIZE(llvmpipe->samplers[shader]));
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]);
}
else {
llvmpipe->dirty |= LP_NEW_SAMPLER;
}
}
static void
llvmpipe_set_sampler_views(struct pipe_context *pipe,
enum pipe_shader_type 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 <= ARRAY_SIZE(llvmpipe->sampler_views[shader]));
draw_flush(llvmpipe->draw);
/* set the new sampler views */
for (i = 0; i < num; i++) {
/* Note: we're using pipe_sampler_view_release() here to work around
* a possible crash when the old view belongs to another context that
* was already destroyed.
*/
pipe_sampler_view_release(pipe,
&llvmpipe->sampler_views[shader][start + i]);
/*
* Warn if someone tries to set a view created in a different context
* (which is why we need the hack above in the first place).
* An assert would be better but st/mesa relies on it...
*/
if (views[i] && views[i]->context != pipe) {
debug_printf("Illegal setting of sampler_view %d created in another "
"context\n", 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]);
}
else {
llvmpipe->dirty |= LP_NEW_SAMPLER_VIEW;
}
}
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: bind flags from OpenGL state tracker are notoriously unreliable.
* This looks unfixable, so fix the bind flags instead when it happens.
*/
if (!(texture->bind & PIPE_BIND_SAMPLER_VIEW)) {
debug_printf("Illegal sampler view creation without bind flag\n");
texture->bind |= PIPE_BIND_SAMPLER_VIEW;
}
if (view) {
*view = *templ;
view->reference.count = 1;
view->texture = NULL;
pipe_resource_reference(&view->texture, texture);
view->context = pipe;
#ifdef DEBUG
/*
* This is possibly too lenient, but the primary reason is just
* to catch state trackers which forget to initialize this, so
* it only catches clearly impossible view targets.
*/
if (view->target != texture->target) {
if (view->target == PIPE_TEXTURE_1D)
assert(texture->target == PIPE_TEXTURE_1D_ARRAY);
else if (view->target == PIPE_TEXTURE_1D_ARRAY)
assert(texture->target == PIPE_TEXTURE_1D);
else if (view->target == PIPE_TEXTURE_2D)
assert(texture->target == PIPE_TEXTURE_2D_ARRAY ||
texture->target == PIPE_TEXTURE_CUBE ||
texture->target == PIPE_TEXTURE_CUBE_ARRAY);
else if (view->target == PIPE_TEXTURE_2D_ARRAY)
assert(texture->target == PIPE_TEXTURE_2D ||
texture->target == PIPE_TEXTURE_CUBE ||
texture->target == PIPE_TEXTURE_CUBE_ARRAY);
else if (view->target == PIPE_TEXTURE_CUBE)
assert(texture->target == PIPE_TEXTURE_CUBE_ARRAY ||
texture->target == PIPE_TEXTURE_2D_ARRAY);
else if (view->target == PIPE_TEXTURE_CUBE_ARRAY)
assert(texture->target == PIPE_TEXTURE_CUBE ||
texture->target == PIPE_TEXTURE_2D_ARRAY);
else
assert(0);
}
#endif
}
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,
enum pipe_shader_type shader_type)
{
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 < num; 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;
if (!lp_tex->dt) {
/* regular texture - setup array of mipmap level offsets */
struct pipe_resource *res = view->texture;
int j;
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);
addr = lp_tex->tex_data;
for (j = first_level; j <= last_level; j++) {
mip_offsets[j] = lp_tex->mip_offsets[j];
row_stride[j] = lp_tex->row_stride[j];
img_stride[j] = lp_tex->img_stride[j];
}
if (tex->target == PIPE_TEXTURE_1D_ARRAY ||
tex->target == PIPE_TEXTURE_2D_ARRAY ||
tex->target == PIPE_TEXTURE_CUBE ||
tex->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 *
lp_tex->img_stride[j];
}
if (view->target == PIPE_TEXTURE_CUBE ||
view->target == PIPE_TEXTURE_CUBE_ARRAY) {
assert(num_layers % 6 == 0);
}
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 = lp_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.size / view_blocksize;
addr = (uint8_t *)addr + view->u.buf.offset;
assert(view->u.buf.offset + view->u.buf.size <= 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;
assert(addr);
}
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 whenever we're about to draw (no dirty flag, FIXME?).
*/
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);
}
/**
* Called whenever we're about to draw (no dirty flag, FIXME?).
*/
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);
}
void
llvmpipe_init_sampler_funcs(struct llvmpipe_context *llvmpipe)
{
llvmpipe->pipe.create_sampler_state = llvmpipe_create_sampler_state;
llvmpipe->pipe.bind_sampler_states = llvmpipe_bind_sampler_states;
llvmpipe->pipe.create_sampler_view = llvmpipe_create_sampler_view;
llvmpipe->pipe.set_sampler_views = llvmpipe_set_sampler_views;
llvmpipe->pipe.sampler_view_destroy = llvmpipe_sampler_view_destroy;
llvmpipe->pipe.delete_sampler_state = llvmpipe_delete_sampler_state;
}