mirror of
https://git.code.sf.net/p/quake/quakeforge
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c58748d640
Attributes seem appropriate as GLSL's qualifiers affect variables rather than types (since there's no typedef). Not much is done with the attributes yet other than some basic error checking (duplicates of non-layout attributes) and debug output, but most (if not all) declarations get to the declaration code with attributes intact.
213 lines
8 KiB
C
213 lines
8 KiB
C
/*
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glsl-declaration.c
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GLSL declaration handling
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Copyright (C) 2024 Bill Currie <bill@taniwha.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "QF/alloc.h"
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#include "QF/hash.h"
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#include "QF/va.h"
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#include "tools/qfcc/include/attribute.h"
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#include "tools/qfcc/include/def.h"
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#include "tools/qfcc/include/diagnostic.h"
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#include "tools/qfcc/include/glsl-lang.h"
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#include "tools/qfcc/include/shared.h"
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#include "tools/qfcc/include/strpool.h"
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#include "tools/qfcc/include/symtab.h"
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#include "tools/qfcc/include/type.h"
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#include "tools/qfcc/include/value.h"
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#if 0
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typedef struct layout_qual_s {
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const char *name;
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bool (*valid) (symbol_t *sym, glsl_interface_t interface);
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bool (*apply) ();
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bool (*apply_expr) ();
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} layout_qual_t;
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// qual var block member iface
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static layout_qual_t layout_qualifiers[] = {
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{"shared", /* q _ b _ uniform/buffer */, ___, nullptr},
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{"packed", /* q _ b _ uniform/buffer */, ___, nullptr},
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{"std140", /* q _ b _ uniform/buffer */, ___, nullptr},
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{"std430", /* q _ b _ uniform/buffer */, ___, nullptr},
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{"row_major", /* q _ b m uniform/buffer */, ___, nullptr},
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{"column_major", /* q _ b m uniform/buffer */, ___, nullptr},
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{"binding", /* _ o b _ uniform/buffer */, nullptr, ___},
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{"offset", /* _ a _ m uniform/buffer */, nullptr, ___},
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{"align", /* _ o b _ uniform/buffer */, nullptr, ___},
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{"set", /* _ o b _ uniform/buffer */, nullptr, ___},
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{"push_constant", /* _ _ b _ uniform(vulkan) */, ___, nullptr},
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{"input_attachment_index", /* _ s _ _ uniform(vulkan) */, nullptr, ___},
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{"location", /* _ v _ _ uniform/buffer/subroutine */, nullptr, ___},
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{"location", /* _ v b m all in/out except compute */, nullptr, ___},
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{"component", /* _ v _ m all in/out except compute */, nullptr, ___},
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{"index", /* _ v _ _ fragment out/subroutine */, nullptr, ___},
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{"triangles", /* q _ _ _ tese in */, ___, nullptr},
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{"quads", /* q _ _ _ tese in */, ___, nullptr},
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{"isolines", /* q _ _ _ tese in */, ___, nullptr},
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{"equal_spacing", /* q _ _ _ tese in */, ___, nullptr},
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{"fractional_even_spacing", /* q _ _ _ tese in */, ___, nullptr},
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{"fractional_odd_spacing", /* q _ _ _ tese in */, ___, nullptr},
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{"cw", /* q _ _ _ tese in */, ___, nullptr},
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{"ccw", /* q _ _ _ tese in */, ___, nullptr},
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{"point_mode", /* q _ _ _ tese in */, ___, nullptr},
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{"points", /* q _ _ _ geom in/out */, ___, nullptr},
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//? [ points ] // q _ _ _ geom in
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{"lines", /* q _ _ _ geom in */, ___, nullptr},
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{"lines_adjacency", /* q _ _ _ geom in */, ___, nullptr},
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{"triangles", /* q _ _ _ geom in */, ___, nullptr},
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{"triangles_adjacency", /* q _ _ _ geom in */, ___, nullptr},
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{"invocations", /* q _ _ _ geom in */, nullptr, ___},
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{"origin_upper_left", /* _ f _ _ frag in */, ___, nullptr},
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{"pixel_center_integer", /* _ f _ _ frag in */, ___, nullptr},
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{"early_fragment_tests", /* q _ _ _ frag in */, ___, nullptr},
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{"local_size_x", /* q _ _ _ comp in */, nullptr, ___},
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{"local_size_y", /* q _ _ _ comp in */, nullptr, ___},
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{"local_size_z", /* q _ _ _ comp in */, nullptr, ___},
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{"local_size_x_id", /* q _ _ _ comp in */, nullptr, ___},
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{"local_size_y_id", /* q _ _ _ comp in */, nullptr, ___},
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{"local_size_z_id", /* q _ _ _ comp in */, nullptr, ___},
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{"xfb_buffer", /* q v b m vert/tess/geom out */, nullptr, ___},
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{"xfb_stride", /* q v b m vert/tess/geom out */, nullptr, ___},
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{"xfb_offset", /* _ v b m vert/tess/geom out */, nullptr, ___},
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{"vertices", /* q _ _ _ tesc out */, nullptr, ___},
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//? [ points ] // q _ _ _ geom out
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{"line_strip", /* q _ _ _ geom out */, ___, nullptr},
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{"triangle_strip", /* q _ _ _ geom out */, ___, nullptr},
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{"max_vertices", /* q _ _ _ geom out */, nullptr, ___},
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{"stream", /* q v b m geom out */, nullptr, ___},
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{"depth_any", /* _ v _ _ frag out */, ___, nullptr},
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{"depth_greater", /* _ v _ _ frag out */, ___, nullptr},
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{"depth_less", /* _ v _ _ frag out */, ___, nullptr},
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{"depth_unchanged", /* _ v _ _ frag out */, ___, nullptr},
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{"constant_id", /* _ s _ _ const */, nullptr, ___},
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{"rgba32f", /* _ i _ _ uniform */, ___, nullptr},
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{"rgba16f", /* _ i _ _ uniform */, ___, nullptr},
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{"rg32f", /* _ i _ _ uniform */, ___, nullptr},
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{"rg16f", /* _ i _ _ uniform */, ___, nullptr},
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{"r11f_g11f_b10f", /* _ i _ _ uniform */, ___, nullptr},
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{"r32f", /* _ i _ _ uniform */, ___, nullptr},
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{"r16f", /* _ i _ _ uniform */, ___, nullptr},
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{"rgba16", /* _ i _ _ uniform */, ___, nullptr},
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{"rgb10_a2", /* _ i _ _ uniform */, ___, nullptr},
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{"rgba8", /* _ i _ _ uniform */, ___, nullptr},
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{"rg16", /* _ i _ _ uniform */, ___, nullptr},
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{"rg8", /* _ i _ _ uniform */, ___, nullptr},
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{"r16", /* _ i _ _ uniform */, ___, nullptr},
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{"r8", /* _ i _ _ uniform */, ___, nullptr},
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{"rgba16_snorm", /* _ i _ _ uniform */, ___, nullptr},
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{"rgba8_snorm", /* _ i _ _ uniform */, ___, nullptr},
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{"rg16_snorm", /* _ i _ _ uniform */, ___, nullptr},
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{"rg8_snorm", /* _ i _ _ uniform */, ___, nullptr},
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{"r16_snorm", /* _ i _ _ uniform */, ___, nullptr},
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{"r8_snorm", /* _ i _ _ uniform */, ___, nullptr},
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{"rgba32i", /* _ i _ _ uniform */, ___, nullptr},
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{"rgba16i", /* _ i _ _ uniform */, ___, nullptr},
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{"rgba8i", /* _ i _ _ uniform */, ___, nullptr},
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{"rg32i", /* _ i _ _ uniform */, ___, nullptr},
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{"rg16i", /* _ i _ _ uniform */, ___, nullptr},
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{"rg8i", /* _ i _ _ uniform */, ___, nullptr},
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{"r32i", /* _ i _ _ uniform */, ___, nullptr},
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{"r16i", /* _ i _ _ uniform */, ___, nullptr},
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{"r8i", /* _ i _ _ uniform */, ___, nullptr},
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{"rgba32ui", /* _ i _ _ uniform */, ___, nullptr},
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{"rgba16ui", /* _ i _ _ uniform */, ___, nullptr},
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{"rgb10_a2ui", /* _ i _ _ uniform */, ___, nullptr},
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{"rgba8ui", /* _ i _ _ uniform */, ___, nullptr},
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{"rg32ui", /* _ i _ _ uniform */, ___, nullptr},
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{"rg16ui", /* _ i _ _ uniform */, ___, nullptr},
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{"rg8ui", /* _ i _ _ uniform */, ___, nullptr},
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{"r32ui", /* _ i _ _ uniform */, ___, nullptr},
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{"r16ui", /* _ i _ _ uniform */, ___, nullptr},
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{"r8ui", /* _ i _ _ uniform */, ___, nullptr},
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};
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#endif
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const char *glsl_interface_names[glsl_num_interfaces] = {
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"in",
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"out",
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"uniform",
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"buffer",
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"shared",
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};
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symtab_t *
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glsl_optimize_attributes (attribute_t *attributes)
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{
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auto attrtab = new_symtab (nullptr, stab_param);
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for (auto attr = attributes; attr; attr = attr->next) {
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auto attrsym = symtab_lookup (attrtab, attr->name);
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if (attrsym) {
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if (strcmp (attr->name, "layout") == 0) {
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list_append_list (&attrsym->list, &attr->params->list);
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} else {
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error (attr->params, "duplicate %s", attr->name);
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}
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} else {
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attrsym = new_symbol (attr->name);
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if (strcmp (attr->name, "layout") == 0) {
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attrsym->sy_type = sy_list;
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list_append_list (&attrsym->list, &attr->params->list);
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} else {
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if (attr->params) {
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notice (attr->params, "attribute params: %s", attr->name);
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attrsym->sy_type = sy_expr;
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attrsym->expr = attr->params;
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}
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}
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symtab_addsymbol (attrtab, attrsym);
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}
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notice (0, "%s", attr->name);
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if (!attr->params) continue;
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for (auto p = attr->params->list.head; p; p = p->next) {
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if (p->expr->type == ex_expr) {
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notice (0, " %s = %s",
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get_value_string (p->expr->expr.e1->value),
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get_value_string (p->expr->expr.e2->value));
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} else {
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notice (0, " %s", get_value_string (p->expr->value));
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}
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}
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}
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return attrtab;
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}
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