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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 "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 *sobj,
struct pipe_constant_buffer *cb, uint32_t *uniforms,
unsigned *size)
{
const struct etna_shader_uniform_info *uinfo = &sobj->uniforms;
bool frag = false;
if (cb->user_buffer) {
unsigned size = MIN2(cb->buffer_size, uinfo->const_count * 4);
memcpy(uniforms, cb->user_buffer, size);
}
if (sobj == ctx->fs)
frag = true;
for (uint32_t i = 0; i < uinfo->imm_count; i++) {
switch (uinfo->imm_contents[i]) {
case ETNA_IMMEDIATE_CONSTANT:
uniforms[i + uinfo->const_count] = uinfo->imm_data[i];
break;
case ETNA_IMMEDIATE_TEXRECT_SCALE_X:
case ETNA_IMMEDIATE_TEXRECT_SCALE_Y:
uniforms[i + uinfo->const_count] =
get_texrect_scale(ctx, frag, uinfo->imm_contents[i], uinfo->imm_data[i]);
break;
case ETNA_IMMEDIATE_UNUSED:
/* nothing to do */
break;
}
}
*size = uinfo->const_count + uinfo->imm_count;
}
void
etna_set_shader_uniforms_dirty_flags(struct etna_shader *sobj)
{
uint32_t dirty = 0;
for (uint32_t i = 0; i < sobj->uniforms.imm_count; i++) {
switch (sobj->uniforms.imm_contents[i]) {
case ETNA_IMMEDIATE_UNUSED:
case ETNA_IMMEDIATE_CONSTANT:
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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