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/*
* Copyright (c) 2016 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:
* Christian Gmeiner <christian.gmeiner@gmail.com>
*/
#include "etnaviv_uniforms.h"
#include "etnaviv_compiler.h"
#include "etnaviv_context.h"
#include "etnaviv_util.h"
#include "etnaviv_emit.h"
#include "pipe/p_defines.h"
#include "util/u_math.h"
static unsigned
get_const_idx(const struct etna_context *ctx, bool frag, unsigned samp_id)
{
if (frag)
return samp_id;
return samp_id + ctx->specs.vertex_sampler_offset;
}
static uint32_t
get_texrect_scale(const struct etna_context *ctx, bool frag,
enum etna_immediate_contents contents, uint32_t data)
{
unsigned index = get_const_idx(ctx, frag, data);
struct pipe_sampler_view *texture = ctx->sampler_view[index];
uint32_t dim;
if (contents == ETNA_IMMEDIATE_TEXRECT_SCALE_X)
dim = texture->texture->width0;
else
dim = texture->texture->height0;
return fui(1.0f / dim);
}
void
etna_uniforms_write(const struct etna_context *ctx,
const struct etna_shader_variant *sobj,
struct pipe_constant_buffer *cb)
{
struct etna_cmd_stream *stream = ctx->stream;
const struct etna_shader_uniform_info *uinfo = &sobj->uniforms;
bool frag = (sobj == ctx->shader.fs);
uint32_t base = frag ? ctx->specs.ps_uniforms_offset : ctx->specs.vs_uniforms_offset;
unsigned idx;
if (!uinfo->imm_count)
return;
etna_cmd_stream_reserve(stream, align(uinfo->imm_count + 1, 2));
etna_emit_load_state(stream, base >> 2, uinfo->imm_count, 0);
for (uint32_t i = 0; i < uinfo->imm_count; i++) {
uint32_t val = uinfo->imm_data[i];
switch (uinfo->imm_contents[i]) {
case ETNA_IMMEDIATE_CONSTANT:
etna_cmd_stream_emit(stream, val);
break;
case ETNA_IMMEDIATE_UNIFORM:
assert(cb->user_buffer && val * 4 < cb->buffer_size);
etna_cmd_stream_emit(stream, ((uint32_t*) cb->user_buffer)[val]);
break;
case ETNA_IMMEDIATE_TEXRECT_SCALE_X:
case ETNA_IMMEDIATE_TEXRECT_SCALE_Y:
etna_cmd_stream_emit(stream,
get_texrect_scale(ctx, frag, uinfo->imm_contents[i], val));
break;
case ETNA_IMMEDIATE_UBO0_ADDR ... ETNA_IMMEDIATE_UBOMAX_ADDR:
idx = uinfo->imm_contents[i] - ETNA_IMMEDIATE_UBO0_ADDR;
etna_cmd_stream_reloc(stream, &(struct etna_reloc) {
.bo = etna_resource(cb[idx].buffer)->bo,
.flags = ETNA_RELOC_READ,
.offset = cb[idx].buffer_offset + val,
});
break;
case ETNA_IMMEDIATE_UNUSED:
etna_cmd_stream_emit(stream, 0);
break;
}
}
if ((uinfo->imm_count % 2) == 0)
etna_cmd_stream_emit(stream, 0);
}
void
etna_set_shader_uniforms_dirty_flags(struct etna_shader_variant *sobj)
{
uint32_t dirty = 0;
for (uint32_t i = 0; i < sobj->uniforms.imm_count; i++) {
switch (sobj->uniforms.imm_contents[i]) {
default:
break;
case ETNA_IMMEDIATE_TEXRECT_SCALE_X:
case ETNA_IMMEDIATE_TEXRECT_SCALE_Y:
dirty |= ETNA_DIRTY_SAMPLER_VIEWS;
break;
}
}
sobj->uniforms_dirty_bits = dirty;
}
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