65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
/*
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* Copyright (C) 2021 Alyssa Rosenzweig <alyssa@rosenzweig.io>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "agx_compiler.h"
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/* Manages the uniform file. We can push certain fixed items (during initial
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* code generation), where we're gauranteed to have sufficient space. After
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* that, UBO ranges can be selectively pushed while there's space. */
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/* Directly index an array sysval. Index must be in bounds. Index specified in
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* 16-bit units regardless of the underlying sysval's unit. */
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agx_index
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agx_indexed_sysval(agx_context *ctx, enum agx_push_type type,
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enum agx_size size, unsigned index, unsigned length)
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{
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/* Check if we already pushed */
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for (unsigned i = 0; i < ctx->out->push_ranges; ++i) {
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struct agx_push push = ctx->out->push[i];
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if (push.type == type && !push.indirect) {
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assert(length == push.length);
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assert(index < push.length);
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return agx_uniform(push.base + index, size);
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}
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}
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/* Otherwise, push */
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assert(ctx->out->push_ranges < AGX_MAX_PUSH_RANGES);
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ctx->push_base = ALIGN_POT(ctx->push_base, agx_size_align_16(size));
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unsigned base = ctx->push_base;
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ctx->push_base += length;
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ctx->out->push[ctx->out->push_ranges++] = (struct agx_push) {
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.type = type,
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.base = base,
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.length = length,
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.indirect = false
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};
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return agx_uniform(base + index, size);
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}
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