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/*
* Copyright (c) 2012-2015 Etnaviv Project
*
* 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
* 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:
* Wladimir J. van der Laan <laanwj@gmail.com>
*/
#include "etnaviv_texture.h"
#include "hw/common.xml.h"
#include "etnaviv_clear_blit.h"
#include "etnaviv_context.h"
#include "etnaviv_emit.h"
#include "etnaviv_format.h"
#include "etnaviv_translate.h"
#include "util/u_inlines.h"
#include "util/u_memory.h"
static void *
etna_create_sampler_state(struct pipe_context *pipe,
const struct pipe_sampler_state *ss)
{
struct etna_sampler_state *cs = CALLOC_STRUCT(etna_sampler_state);
if (!cs)
return NULL;
cs->TE_SAMPLER_CONFIG0 =
VIVS_TE_SAMPLER_CONFIG0_UWRAP(translate_texture_wrapmode(ss->wrap_s)) |
VIVS_TE_SAMPLER_CONFIG0_VWRAP(translate_texture_wrapmode(ss->wrap_t)) |
VIVS_TE_SAMPLER_CONFIG0_MIN(translate_texture_filter(ss->min_img_filter)) |
VIVS_TE_SAMPLER_CONFIG0_MIP(translate_texture_mipfilter(ss->min_mip_filter)) |
VIVS_TE_SAMPLER_CONFIG0_MAG(translate_texture_filter(ss->mag_img_filter)) |
COND(ss->normalized_coords, VIVS_TE_SAMPLER_CONFIG0_ROUND_UV);
cs->TE_SAMPLER_CONFIG1 = 0; /* VIVS_TE_SAMPLER_CONFIG1 (swizzle, extended
format) fully determined by sampler view */
cs->TE_SAMPLER_LOD_CONFIG =
COND(ss->lod_bias != 0.0, VIVS_TE_SAMPLER_LOD_CONFIG_BIAS_ENABLE) |
VIVS_TE_SAMPLER_LOD_CONFIG_BIAS(etna_float_to_fixp55(ss->lod_bias));
if (ss->min_mip_filter != PIPE_TEX_MIPFILTER_NONE) {
cs->min_lod = etna_float_to_fixp55(ss->min_lod);
cs->max_lod = etna_float_to_fixp55(ss->max_lod);
} else {
/* when not mipmapping, we need to set max/min lod so that always
* lowest LOD is selected */
cs->min_lod = cs->max_lod = etna_float_to_fixp55(ss->min_lod);
}
return cs;
}
static void
etna_bind_sampler_states(struct pipe_context *pctx, enum pipe_shader_type shader,
unsigned start_slot, unsigned num_samplers,
void **samplers)
{
/* bind fragment sampler */
struct etna_context *ctx = etna_context(pctx);
int offset;
switch (shader) {
case PIPE_SHADER_FRAGMENT:
offset = 0;
ctx->num_fragment_samplers = num_samplers;
break;
case PIPE_SHADER_VERTEX:
offset = ctx->specs.vertex_sampler_offset;
break;
default:
assert(!"Invalid shader");
return;
}
uint32_t mask = 1 << offset;
for (int idx = 0; idx < num_samplers; ++idx, mask <<= 1) {
ctx->sampler[offset + idx] = samplers[idx];
if (samplers[idx])
ctx->active_samplers |= mask;
else
ctx->active_samplers &= ~mask;
}
ctx->dirty |= ETNA_DIRTY_SAMPLERS;
}
static void
etna_delete_sampler_state(struct pipe_context *pctx, void *ss)
{
FREE(ss);
}
static void
etna_update_sampler_source(struct pipe_sampler_view *view)
{
struct etna_resource *res = etna_resource(view->texture);
if (res->texture && etna_resource_older(etna_resource(res->texture), res)) {
/* Texture is older than render buffer, copy the texture using RS */
etna_copy_resource(view->context, res->texture, view->texture, 0,
view->texture->last_level);
etna_resource(res->texture)->seqno = res->seqno;
}
}
static bool
etna_resource_sampler_compatible(struct etna_resource *res)
{
if (util_format_is_compressed(res->base.format))
return true;
struct etna_screen *screen = etna_screen(res->base.screen);
/* This GPU supports texturing from supertiled textures? */
if (res->layout == ETNA_LAYOUT_SUPER_TILED && VIV_FEATURE(screen, chipMinorFeatures2, SUPERTILED_TEXTURE))
return true;
/* TODO: LINEAR_TEXTURE_SUPPORT */
/* Otherwise, only support tiled layouts */
if (res->layout != ETNA_LAYOUT_TILED)
return false;
/* If we have HALIGN support, we can allow for the RS padding */
if (VIV_FEATURE(screen, chipMinorFeatures1, TEXTURE_HALIGN))
return true;
/* Non-HALIGN GPUs only accept 4x4 tile-aligned textures */
if (res->halign != TEXTURE_HALIGN_FOUR)
return false;
return true;
}
static struct pipe_sampler_view *
etna_create_sampler_view(struct pipe_context *pctx, struct pipe_resource *prsc,
const struct pipe_sampler_view *so)
{
struct etna_sampler_view *sv = CALLOC_STRUCT(etna_sampler_view);
struct etna_resource *res = etna_resource(prsc);
struct etna_context *ctx = etna_context(pctx);
if (!sv)
return NULL;
if (!etna_resource_sampler_compatible(res)) {
/* The original resource is not compatible with the sampler.
* Allocate an appropriately tiled texture. */
if (!res->texture) {
struct pipe_resource templat = *prsc;
templat.bind &= ~(PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET |
PIPE_BIND_BLENDABLE);
res->texture =
etna_resource_alloc(pctx->screen, ETNA_LAYOUT_TILED, &templat);
}
if (!res->texture) {
free(sv);
return NULL;
}
res = etna_resource(res->texture);
}
sv->base = *so;
pipe_reference(NULL, &prsc->reference);
sv->base.texture = prsc;
sv->base.reference.count = 1;
sv->base.context = pctx;
/* merged with sampler state */
sv->TE_SAMPLER_CONFIG0 =
VIVS_TE_SAMPLER_CONFIG0_FORMAT(translate_texture_format(sv->base.format));
sv->TE_SAMPLER_CONFIG0_MASK = 0xffffffff;
switch (sv->base.target) {
case PIPE_TEXTURE_1D:
/* For 1D textures, we will have a height of 1, so we can use 2D
* but set T wrap to repeat */
sv->TE_SAMPLER_CONFIG0_MASK = ~VIVS_TE_SAMPLER_CONFIG0_VWRAP__MASK;
sv->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_VWRAP(TEXTURE_WRAPMODE_REPEAT);
/* fallthrough */
case PIPE_TEXTURE_2D:
case PIPE_TEXTURE_RECT:
sv->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_TYPE(TEXTURE_TYPE_2D);
break;
case PIPE_TEXTURE_CUBE:
sv->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_TYPE(TEXTURE_TYPE_CUBE_MAP);
break;
default:
BUG("Unhandled texture target");
free(sv);
return NULL;
}
sv->TE_SAMPLER_CONFIG1 = VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_R(so->swizzle_r) |
VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_G(so->swizzle_g) |
VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_B(so->swizzle_b) |
VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_A(so->swizzle_a) |
VIVS_TE_SAMPLER_CONFIG1_HALIGN(res->halign);
sv->TE_SAMPLER_SIZE = VIVS_TE_SAMPLER_SIZE_WIDTH(res->base.width0) |
VIVS_TE_SAMPLER_SIZE_HEIGHT(res->base.height0);
sv->TE_SAMPLER_LOG_SIZE =
VIVS_TE_SAMPLER_LOG_SIZE_WIDTH(etna_log2_fixp55(res->base.width0)) |
VIVS_TE_SAMPLER_LOG_SIZE_HEIGHT(etna_log2_fixp55(res->base.height0));
/* Set up levels-of-detail */
for (int lod = 0; lod <= res->base.last_level; ++lod) {
sv->TE_SAMPLER_LOD_ADDR[lod].bo = res->bo;
sv->TE_SAMPLER_LOD_ADDR[lod].offset = res->levels[lod].offset;
sv->TE_SAMPLER_LOD_ADDR[lod].flags = ETNA_RELOC_READ;
}
sv->min_lod = sv->base.u.tex.first_level << 5;
sv->max_lod = MIN2(sv->base.u.tex.last_level, res->base.last_level) << 5;
/* Workaround for npot textures -- it appears that only CLAMP_TO_EDGE is
* supported when the appropriate capability is not set. */
if (!ctx->specs.npot_tex_any_wrap &&
(!util_is_power_of_two(res->base.width0) || !util_is_power_of_two(res->base.height0))) {
sv->TE_SAMPLER_CONFIG0_MASK = ~(VIVS_TE_SAMPLER_CONFIG0_UWRAP__MASK |
VIVS_TE_SAMPLER_CONFIG0_VWRAP__MASK);
sv->TE_SAMPLER_CONFIG0 |=
VIVS_TE_SAMPLER_CONFIG0_UWRAP(TEXTURE_WRAPMODE_CLAMP_TO_EDGE) |
VIVS_TE_SAMPLER_CONFIG0_VWRAP(TEXTURE_WRAPMODE_CLAMP_TO_EDGE);
}
return &sv->base;
}
static void
etna_sampler_view_destroy(struct pipe_context *pctx,
struct pipe_sampler_view *view)
{
pipe_resource_reference(&view->texture, NULL);
FREE(view);
}
static void
set_sampler_views(struct etna_context *ctx, unsigned start, unsigned end,
unsigned nr, struct pipe_sampler_view **views)
{
unsigned i, j;
uint32_t mask = 1 << start;
for (i = start, j = 0; j < nr; i++, j++, mask <<= 1) {
pipe_sampler_view_reference(&ctx->sampler_view[i], views[j]);
if (views[j])
ctx->active_sampler_views |= mask;
else
ctx->active_sampler_views &= ~mask;
}
for (; i < end; i++, mask <<= 1) {
pipe_sampler_view_reference(&ctx->sampler_view[i], NULL);
ctx->active_sampler_views &= ~mask;
}
}
static inline void
etna_fragtex_set_sampler_views(struct etna_context *ctx, unsigned nr,
struct pipe_sampler_view **views)
{
unsigned start = 0;
unsigned end = start + ctx->specs.fragment_sampler_count;
set_sampler_views(ctx, start, end, nr, views);
ctx->num_fragment_sampler_views = nr;
}
static inline void
etna_vertex_set_sampler_views(struct etna_context *ctx, unsigned nr,
struct pipe_sampler_view **views)
{
unsigned start = ctx->specs.vertex_sampler_offset;
unsigned end = start + ctx->specs.vertex_sampler_count;
set_sampler_views(ctx, start, end, nr, views);
}
static void
etna_set_sampler_views(struct pipe_context *pctx, enum pipe_shader_type shader,
unsigned start_slot, unsigned num_views,
struct pipe_sampler_view **views)
{
struct etna_context *ctx = etna_context(pctx);
assert(start_slot == 0);
ctx->dirty |= ETNA_DIRTY_SAMPLER_VIEWS | ETNA_DIRTY_TEXTURE_CACHES;
for (unsigned idx = 0; idx < num_views; ++idx) {
if (views[idx])
etna_update_sampler_source(views[idx]);
}
switch (shader) {
case PIPE_SHADER_FRAGMENT:
etna_fragtex_set_sampler_views(ctx, num_views, views);
break;
case PIPE_SHADER_VERTEX:
etna_vertex_set_sampler_views(ctx, num_views, views);
break;
default:;
}
}
static void
etna_texture_barrier(struct pipe_context *pctx, unsigned flags)
{
struct etna_context *ctx = etna_context(pctx);
/* clear color and texture cache to make sure that texture unit reads
* what has been written */
etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, VIVS_GL_FLUSH_CACHE_COLOR | VIVS_GL_FLUSH_CACHE_TEXTURE);
}
void
etna_texture_init(struct pipe_context *pctx)
{
pctx->create_sampler_state = etna_create_sampler_state;
pctx->bind_sampler_states = etna_bind_sampler_states;
pctx->delete_sampler_state = etna_delete_sampler_state;
pctx->set_sampler_views = etna_set_sampler_views;
pctx->create_sampler_view = etna_create_sampler_view;
pctx->sampler_view_destroy = etna_sampler_view_destroy;
pctx->texture_barrier = etna_texture_barrier;
}
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