445 lines
12 KiB
C
445 lines
12 KiB
C
/*
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scconfig - gui lib detection - opengl related calls
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Copyright (C) 2017 Tibor Palinkas
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Copyright (C) 2018 Aron Barath
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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 2.1 of the License, or (at your option) any later version.
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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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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Project page: http://repo.hu/projects/scconfig
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Contact (email and IRC): http://igor2.repo.hu/contact.html
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include "libs.h"
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#include "log.h"
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#include "db.h"
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#include "dep.h"
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#include "find_gl.h"
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int find_gl(const char *name, int logdepth, int fatal)
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{
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char test_c[256];
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const char *test_c_templ =
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NL "#include <%s/gl.h>"
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NL "#include <stdio.h>"
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NL "int main()"
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NL "{"
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NL " GLenum err = glGetError();"
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NL " if (err == 0 || err == GL_INVALID_OPERATION)"
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NL " puts(\"OK\");"
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NL " return 0;"
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NL "}"
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NL;
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const char *node = "libs/gui/gl";
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char **id, *incdirs[] = {"GL", "OpenGL", NULL};
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char **cf, *cflgs[] = {"", "-I/usr/include/libdrm", NULL};
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const char **lf, *ldflgs[] = {"-lGL", "-lopengl32", "-framework OpenGL", NULL};
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char *cflags = NULL;
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char *ldflags = NULL;
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if (require("cc/cc", logdepth, fatal))
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return try_fail(logdepth, node);
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report("Checking for gl... ");
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logprintf(logdepth, "find_gl: running pkg-config...\n");
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logdepth++;
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if (run_pkg_config(logdepth, "gl", &cflags, &ldflags) == 0) {
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for(id = incdirs; *id != NULL; id++) {
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sprintf(test_c, test_c_templ, *id);
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if (try_icl(logdepth, node, test_c, NULL, cflags, ldflags) != 0)
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goto success;
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}
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}
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logdepth--;
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logprintf(logdepth, "find_gl: manual tries...\n");
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logdepth++;
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for(lf = ldflgs; *lf != NULL; lf++) {
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ldflags = strclone(*lf);
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for(cf = cflgs; *cf != NULL; cf++) {
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for(id = incdirs; *id != NULL; id++) {
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sprintf(test_c, test_c_templ, *id);
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if (try_icl(logdepth, node, test_c, NULL, *cf, ldflags) != 0)
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goto success;
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}
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}
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free(ldflags);
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}
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return try_fail(logdepth, node);
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success:;
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put("libs/gui/gl/include_prefix", *id);
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if (cflags != NULL)
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free(cflags);
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if (ldflags != NULL)
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free(ldflags);
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return 0;
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}
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int find_gl_vao(const char *name, int logdepth, int fatal)
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{
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const char *test_c_templ =
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NL "#include <stdio.h>"
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NL "#include <%s/gl.h>"
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NL "int main()"
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NL "{"
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NL " glBindVertexArray(0);"
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NL " return 0;"
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NL "}"
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NL;
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const char *incs_templ = "#define GL_GLEXT_PROTOTYPES\n%s\n#include <%s/gl.h>\n#include <%s/glext.h>";
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char test_c[512], incs2[512];
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const char *node = "libs/gui/gl/vao";
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const char *cflags, *ldflags, *incs, *ip;
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if (require("cc/cc", logdepth, fatal))
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return try_fail(logdepth, node);
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if (require("libs/gui/gl/*", logdepth, fatal))
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return try_fail(logdepth, node);
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cflags = get("libs/gui/gl/cflags");
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ldflags = get("libs/gui/gl/ldflags");
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incs = get("libs/gui/gl/includes");
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ip = get("libs/gui/gl/include_prefix");
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report("Checking for gl vao... ");
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logprintf(logdepth, "find_gl_vao...\n");
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logdepth++;
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sprintf(test_c, test_c_templ, ip);
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logprintf(logdepth, "trying vao with includes '%s'\n", incs);
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if (try_icl_norun(logdepth, node, test_c, incs, cflags, ldflags) != 0)
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return 0;
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if (strlen(ip) + strlen(incs)+ strlen(incs_templ) + 8 < sizeof(incs2)) {
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sprintf(incs2, incs_templ, incs, ip, ip);
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logprintf(logdepth, "trying vao with includes2 '%s'\n", incs2);
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if (try_icl_norun(logdepth, node, test_c, incs2, cflags, ldflags) != 0)
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return 0;
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}
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return try_fail(logdepth, node);
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}
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int find_gl_fb_attachment(const char *name, int logdepth, int fatal)
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{
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const char *test_c_templ =
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NL "#include <stdio.h>"
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NL "#include <%s/gl.h>"
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NL "int main()"
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NL "{"
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NL " int stencil_bits;"
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NL " glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE, &stencil_bits);"
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NL " return 0;"
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NL "}"
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NL;
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const char *incs_templ = "#define GL_GLEXT_PROTOTYPES\n%s\n#include <%s/gl.h>\n#include <%s/glext.h>";
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char test_c[512], incs2[512];
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const char *node = "libs/gui/gl/fb_attachment";
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const char *cflags, *ldflags, *incs, *ip;
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if (require("cc/cc", logdepth, fatal))
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return try_fail(logdepth, node);
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if (require("libs/gui/gl/*", logdepth, fatal))
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return try_fail(logdepth, node);
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cflags = get("libs/gui/gl/cflags");
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ldflags = get("libs/gui/gl/ldflags");
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incs = get("libs/gui/gl/includes");
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ip = get("libs/gui/gl/include_prefix");
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report("Checking for gl framebuffer attachment... ");
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logprintf(logdepth, "find_gl_fb_attachment...\n");
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logdepth++;
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sprintf(test_c, test_c_templ, ip);
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logprintf(logdepth, "trying fb_att* with includes '%s'\n", incs);
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if (try_icl_norun(logdepth, node, test_c, incs, cflags, ldflags) != 0)
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return 0;
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if (strlen(ip) + strlen(incs)+ strlen(incs_templ) + 8 < sizeof(incs2)) {
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sprintf(incs2, incs_templ, incs, ip, ip);
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logprintf(logdepth, "trying fb_att* with includes2 '%s'\n", incs2);
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if (try_icl_norun(logdepth, node, test_c, incs2, cflags, ldflags) != 0)
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return 0;
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}
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return try_fail(logdepth, node);
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}
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int find_glu(const char *name, int logdepth, int fatal)
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{
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char test_c[256];
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const char *test_c_templ =
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NL "#include <%s/gl.h>"
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NL "#include <%s/glu.h>"
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NL "#include <stdio.h>"
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NL "int main()"
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NL "{"
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NL " GLUtesselator *g = gluNewTess();"
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NL " if (g != NULL)"
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NL " puts(\"OK\");"
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NL " return 0;"
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NL "}"
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NL;
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const char *node = "libs/gui/glu", *ipr;
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char **cf, *cflgs[] = {"", "-I/usr/include/libdrm", NULL};
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char *cflags = NULL;
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char *ldflags = NULL;
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if (require("cc/cc", logdepth, fatal))
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return try_fail(logdepth, node);
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if (require("libs/gui/gl/include_prefix", logdepth, fatal))
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return try_fail(logdepth, node);
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ipr = get("libs/gui/gl/include_prefix");
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if (ipr == NULL)
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return try_fail(logdepth, node);
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sprintf(test_c, test_c_templ, ipr, ipr);
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report("Checking for glu... ");
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logprintf(logdepth, "find_glu: running pkg-config...\n");
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logdepth++;
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if (run_pkg_config(logdepth, "glu", &cflags, &ldflags) == 0) {
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if (try_icl(logdepth, node, test_c, NULL, cflags, ldflags) != 0)
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goto success;
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}
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logdepth--;
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logprintf(logdepth, "find_glu: manual tries...\n");
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logdepth++;
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ldflags = strclone("-lGLU");
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for(cf = cflgs; *cf != NULL; cf++)
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if (try_icl(logdepth, node, test_c, NULL, *cf, ldflags) != 0)
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goto success;
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free(ldflags);
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ldflags = strclone("-lglu32");
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for(cf = cflgs; *cf != NULL; cf++)
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if (try_icl(logdepth, node, test_c, NULL, *cf, ldflags) != 0)
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goto success;
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free(ldflags);
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return try_fail(logdepth, node);
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success:;
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if (cflags != NULL)
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free(cflags);
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if (ldflags != NULL)
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free(ldflags);
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return 0;
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}
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int find_glut(const char *name, int logdepth, int fatal)
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{
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const char *test_c =
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NL "#include <stdio.h>"
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NL "int main()"
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NL "{"
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NL " glutGet(GLUT_ELAPSED_TIME);"
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NL " if (glutGet!=NULL)"
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NL " puts(\"OK\");"
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NL " return 0;"
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NL "}"
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NL;
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const char *node = "libs/gui/glut", *ipr;
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char freeglut[4096];
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char **inc, *incs[] = {"", "#include <openglut.h>", NULL};
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char *cflags = NULL;
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char *ldflags = NULL;
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incs[0] = freeglut;
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if (require("cc/cc", logdepth, fatal))
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return try_fail(logdepth, node);
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report("Checking for glut... ");
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logprintf(logdepth, "find_glut: running pkg-config...\n");
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logdepth++;
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if (run_pkg_config(logdepth, "glut", &cflags, &ldflags) == 0) {
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if (try_icl(logdepth, node, test_c, NULL, cflags, ldflags) != 0)
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goto success;
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}
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if (require("libs/gui/gl/include_prefix", logdepth, fatal))
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return try_fail(logdepth, node);
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ipr = get("libs/gui/gl/include_prefix");
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if (ipr == NULL)
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return try_fail(logdepth, node);
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if (cflags != NULL) {
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free(cflags);
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cflags = NULL;
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}
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if (ldflags != NULL) {
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free(ldflags);
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ldflags = NULL;
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}
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logdepth--;
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logprintf(logdepth, "find_glut: manual tries...\n");
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logdepth++;
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sprintf(freeglut, "#include <%s/freeglut.h>", ipr);
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ldflags = strclone("-lglut");
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for(inc = incs; *inc != NULL; inc++)
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if (try_icl(logdepth, node, test_c, *inc, NULL, ldflags) != 0)
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goto success;
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free(ldflags);
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sprintf(freeglut, "#include <windows.h>\n#include <%s/glut.h>", ipr);
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ldflags = strclone("-lglut32");
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for(inc = incs; *inc != NULL; inc++)
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if (try_icl(logdepth, node, test_c, *inc, NULL, ldflags) != 0)
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goto success;
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free(ldflags);
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return try_fail(logdepth, node);
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success:;
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if (cflags != NULL)
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free(cflags);
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if (ldflags != NULL)
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free(ldflags);
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return 0;
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}
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int find_gui_wgl(const char *name, int logdepth, int fatal)
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{
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const char *test_c =
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NL "#include <stdio.h>"
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NL "int main()"
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NL "{"
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NL " if(wglGetCurrentDC() == NULL)"
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NL " puts(\"OK\");"
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NL " return 0;"
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NL "}"
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NL;
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const char *node = "libs/gui/wgl";
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require("cc/cc", logdepth, fatal);
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report("Checking for wgl()... ");
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logprintf(logdepth, "find_gui_wgl: trying to find wgl...\n");
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logdepth++;
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/* wgl exists only on windows, so try what the documentation says */
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/* ("wgl" stands for "Windows GL" oslt) */
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if (try_icl(logdepth, node, test_c, "#include <wingdi.h>", NULL, "-lopengl32")) return 0;
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return try_fail(logdepth, node);
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}
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static int accept_glfw(char *stdout_str)
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{
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int major = 0, minor = 0, rev = 0;
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char tmp[32];
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if ((stdout_str[0] != 'O') || (stdout_str[1] != 'K'))
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return 0;
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sscanf(stdout_str + 2, "%d %d %d", &major, &minor, &rev);
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sprintf(tmp, "%d", major); put("libs/gui/glfw/ver/major", tmp);
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sprintf(tmp, "%d", minor); put("libs/gui/glfw/ver/minor", tmp);
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sprintf(tmp, "%d", rev); put("libs/gui/glfw/ver/rev", tmp);
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return 1;
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}
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int find_glfw(const char *name, int logdepth, int fatal)
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{
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const char *test_c =
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NL "#include <stdio.h>"
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NL "int main()"
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NL "{"
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NL " int major = 0, minor = 0, rev = 0;"
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NL " glfwGetVersion(&major, &minor, &rev);"
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NL " if (major > 0)"
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NL " printf(\"OK %d %d %d\\n\", major, minor, rev);"
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NL " return 0;"
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NL "}"
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NL;
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const char *node = "libs/gui/glfw", *ipr;
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char freeglfw[4096];
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char **inc, *incs[] = {"", "#include <GLFW/glfw3.h>", NULL};
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char *cflags = NULL;
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char *ldflags = NULL;
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incs[0] = freeglfw;
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freeglfw[0] = 0;
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if (require("cc/cc", logdepth, fatal))
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return try_fail(logdepth, node);
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report("Checking for glfw... ");
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logprintf(logdepth, "find_glfw: running pkg-config...\n");
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logdepth++;
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if (run_pkg_config(logdepth, "glfw3", &cflags, &ldflags) == 0) {
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if (try_icl_(logdepth, node, test_c, incs[1], cflags, ldflags, 1, accept_glfw) != 0)
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goto success;
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}
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if (require("libs/gui/gl/include_prefix", logdepth, fatal))
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return try_fail(logdepth, node);
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ipr = get("libs/gui/gl/include_prefix");
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if (ipr == NULL)
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return try_fail(logdepth, node);
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if (cflags != NULL) {
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free(cflags);
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cflags = NULL;
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}
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if (ldflags != NULL) {
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free(ldflags);
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ldflags = NULL;
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}
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logdepth--;
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logprintf(logdepth, "find_glfw: manual tries...\n");
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logdepth++;
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sprintf(freeglfw, "#include <%s/glfw.h>", ipr);
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ldflags = strclone("-lglfw");
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for(inc = incs; *inc != NULL; inc++)
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if (try_icl_(logdepth, node, test_c, *inc, NULL, ldflags, 1, accept_glfw) != 0)
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goto success;
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free(ldflags);
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return try_fail(logdepth, node);
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success:;
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if (cflags != NULL)
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free(cflags);
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if (ldflags != NULL)
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free(ldflags);
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return 0;
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}
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