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/*
* Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
*
* 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, sublicense,
* 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 NONINFRINGEMENT. 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.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#include "pipe/p_state.h"
#include "util/u_string.h"
#include "util/u_memory.h"
#include "util/u_inlines.h"
#include "freedreno_texture.h"
#include "freedreno_context.h"
#include "freedreno_util.h"
static void
fd_sampler_state_delete(struct pipe_context *pctx, void *hwcso)
{
FREE(hwcso);
}
static void
fd_sampler_view_destroy(struct pipe_context *pctx,
struct pipe_sampler_view *view)
{
pipe_resource_reference(&view->texture, NULL);
FREE(view);
}
static void bind_sampler_states(struct fd_texture_stateobj *tex,
unsigned start, unsigned nr, void **hwcso)
{
unsigned i;
for (i = 0; i < nr; i++) {
unsigned p = i + start;
tex->samplers[p] = hwcso[i];
if (tex->samplers[p])
tex->valid_samplers |= (1 << p);
else
tex->valid_samplers &= ~(1 << p);
}
tex->num_samplers = util_last_bit(tex->valid_samplers);
}
static void set_sampler_views(struct fd_texture_stateobj *tex,
unsigned start, unsigned nr, struct pipe_sampler_view **views)
{
unsigned i;
unsigned samplers = 0;
for (i = 0; i < nr; i++) {
struct pipe_sampler_view *view = views ? views[i] : NULL;
unsigned p = i + start;
pipe_sampler_view_reference(&tex->textures[p], view);
if (tex->textures[p])
tex->valid_textures |= (1 << p);
else
tex->valid_textures &= ~(1 << p);
}
tex->num_textures = util_last_bit(tex->valid_textures);
for (i = 0; i < tex->num_textures; i++) {
uint nr_samples = tex->textures[i]->texture->nr_samples;
samplers |= (nr_samples >> 1) << (i * 2);
}
tex->samples = samplers;
}
void
fd_sampler_states_bind(struct pipe_context *pctx,
enum pipe_shader_type shader, unsigned start,
unsigned nr, void **hwcso)
{
struct fd_context *ctx = fd_context(pctx);
bind_sampler_states(&ctx->tex[shader], start, nr, hwcso);
ctx->dirty_shader[shader] |= FD_DIRTY_SHADER_TEX;
ctx->dirty |= FD_DIRTY_TEX;
}
void
fd_set_sampler_views(struct pipe_context *pctx, enum pipe_shader_type shader,
unsigned start, unsigned nr,
struct pipe_sampler_view **views)
{
struct fd_context *ctx = fd_context(pctx);
set_sampler_views(&ctx->tex[shader], start, nr, views);
ctx->dirty_shader[shader] |= FD_DIRTY_SHADER_TEX;
ctx->dirty |= FD_DIRTY_TEX;
}
void
fd_texture_init(struct pipe_context *pctx)
{
if (!pctx->delete_sampler_state)
pctx->delete_sampler_state = fd_sampler_state_delete;
if (!pctx->sampler_view_destroy)
pctx->sampler_view_destroy = fd_sampler_view_destroy;
}
/* helper for setting up border-color buffer for a3xx/a4xx: */
void
fd_setup_border_colors(struct fd_texture_stateobj *tex, void *ptr,
unsigned offset)
{
unsigned i, j;
for (i = 0; i < tex->num_samplers; i++) {
struct pipe_sampler_state *sampler = tex->samplers[i];
uint16_t *bcolor = (uint16_t *)((uint8_t *)ptr +
(BORDERCOLOR_SIZE * offset) +
(BORDERCOLOR_SIZE * i));
uint32_t *bcolor32 = (uint32_t *)&bcolor[16];
if (!sampler)
continue;
/*
* XXX HACK ALERT XXX
*
* The border colors need to be swizzled in a particular
* format-dependent order. Even though samplers don't know about
* formats, we can assume that with a GL state tracker, there's a
* 1:1 correspondence between sampler and texture. Take advantage
* of that knowledge.
*/
if (i < tex->num_textures && tex->textures[i]) {
const struct util_format_description *desc =
util_format_description(tex->textures[i]->format);
for (j = 0; j < 4; j++) {
if (desc->swizzle[j] >= 4)
continue;
const struct util_format_channel_description *chan =
&desc->channel[desc->swizzle[j]];
if (chan->pure_integer) {
bcolor32[desc->swizzle[j] + 4] = sampler->border_color.i[j];
bcolor[desc->swizzle[j] + 8] = sampler->border_color.i[j];
} else {
bcolor32[desc->swizzle[j]] = fui(sampler->border_color.f[j]);
bcolor[desc->swizzle[j]] =
util_float_to_half(sampler->border_color.f[j]);
}
}
}
}
}
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