mirror of https://github.com/xemu-project/xemu.git
59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
/*
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* Geforce NV2A PGRAPH GLSL Shader Generator
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*
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* Copyright (c) 2024 Matt Borgerson
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "common.h"
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MString *pgraph_get_glsl_vtx_header(MString *out, bool location, bool smooth, bool in, bool prefix, bool array)
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{
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const char *flat_s = "flat";
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const char *noperspective_s = "noperspective";
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const char *qualifier_s = smooth ? noperspective_s : flat_s;
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const char *qualifiers[11] = {
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noperspective_s, flat_s, qualifier_s, qualifier_s,
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qualifier_s, qualifier_s, noperspective_s, noperspective_s,
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noperspective_s, noperspective_s, noperspective_s
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};
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const char *in_out_s = in ? "in" : "out";
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const char *float_s = "float";
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const char *vec4_s = "vec4";
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const char *types[11] = { float_s, float_s, vec4_s, vec4_s, vec4_s, vec4_s,
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float_s, vec4_s, vec4_s, vec4_s, vec4_s };
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const char *prefix_s = prefix ? "v_" : "";
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const char *names[11] = {
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"vtx_inv_w", "vtx_inv_w_flat", "vtxD0", "vtxD1", "vtxB0", "vtxB1",
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"vtxFog", "vtxT0", "vtxT1", "vtxT2", "vtxT3",
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};
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const char *suffix_s = array ? "[]" : "";
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for (int i = 0; i < 11; i++) {
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if (location) {
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mstring_append_fmt(out, "layout(location = %d) ", i);
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}
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mstring_append_fmt(out, "%s %s %s %s%s%s;\n",
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qualifiers[i], in_out_s, types[i], prefix_s, names[i], suffix_s);
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}
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return out;
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}
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