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https://github.com/nigels-com/glew.git
synced 2024-11-11 08:43:49 +00:00
GLEW_EGL mode for loading functions via eglGetProcAddress
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4ee89ccb39
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@ -200,14 +200,14 @@ $(S.DEST)/glew.c: $(EXT)/.dummy
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$(BIN)/make_list.pl $(GL_EXT_SPEC) >> $@
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$(BIN)/make_list2.pl $(GL_EXT_SPEC) >> $@
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echo -e "\n return GLEW_OK;\n}\n" >> $@
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echo -e "\n#if defined(_WIN32) && ! defined(GLEW_OSMESA)" >> $@
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echo -e "\n#if defined(_WIN32) && !defined(GLEW_EGL) && !defined(GLEW_OSMESA)" >> $@
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$(BIN)/make_def_fun.pl WGL $(WGL_EXT_SPEC) >> $@
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$(BIN)/make_def_var.pl WGL $(WGL_EXT_SPEC) >> $@
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$(BIN)/make_init.pl WGL $(WGL_EXT_SPEC) >> $@
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cat $(SRC)/glew_init_wgl.c >> $@
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$(BIN)/make_list.pl $(WGL_EXT_SPEC) >> $@
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echo -e "\n return GLEW_OK;\n}" >> $@;
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echo -e "\n#elif !defined(GLEW_OSMESA) && !defined(__ANDROID__) && !defined(__native_client__) && !defined(__HAIKU__) && (!defined(__APPLE__) || defined(GLEW_APPLE_GLX))" >> $@
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echo -e "\n#elif !defined(GLEW_EGL) && !defined(GLEW_OSMESA) && !defined(__ANDROID__) && !defined(__native_client__) && !defined(__HAIKU__) && (!defined(__APPLE__) || defined(GLEW_APPLE_GLX))" >> $@
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$(BIN)/make_def_fun.pl GLX $(GLX_CORE_SPEC) >> $@
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$(BIN)/make_def_fun.pl GLX $(GLX_EXT_SPEC) >> $@
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echo -e "\nGLboolean __GLXEW_VERSION_1_0 = GL_FALSE;" >> $@
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@ -245,12 +245,14 @@ $(S.DEST)/glewinfo.c: $(EXT)/.dummy
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cat $(SRC)/glewinfo_head.c >> $@
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$(BIN)/make_info.pl $(GL_CORE_SPEC) >> $@
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$(BIN)/make_info.pl $(GL_EXT_SPEC) >> $@
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echo -e "#if !defined(GLEW_EGL)\n" >> $@
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echo -e "#ifdef _WIN32\n" >> $@
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$(BIN)/make_info.pl $(WGL_EXT_SPEC) >> $@
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echo -e "#else /* _UNIX */\n" >> $@
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$(BIN)/make_info.pl $(GLX_CORE_SPEC) >> $@
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$(BIN)/make_info.pl $(GLX_EXT_SPEC) >> $@
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echo -e "#endif /* _WIN32 */\n" >> $@
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echo -e "#endif /* !defined(GLEW_EGL) */\n" >> $@
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cat $(SRC)/glewinfo_gl.c >> $@
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$(BIN)/make_info_list.pl $(GL_CORE_SPEC) >> $@
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@ -1,6 +1,7 @@
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#include <GL/glew.h>
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#if defined(GLEW_OSMESA)
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#if defined(GLEW_EGL)
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#elif defined(GLEW_OSMESA)
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# define GLAPI extern
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# include <GL/osmesa.h>
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#elif defined(_WIN32)
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@ -13,7 +14,9 @@
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#include <stdlib.h> /* For bsearch */
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#include <string.h> /* For memset */
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#if defined(GLEW_REGAL)
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#if defined(GLEW_EGL)
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extern void * eglGetProcAddress (const char *procname);
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#elif defined(GLEW_REGAL)
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/* In GLEW_REGAL mode we call direcly into the linked
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libRegal.so glGetProcAddressREGAL for looking up
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@ -113,7 +116,9 @@ void* NSGLGetProcAddress (const GLubyte *name)
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/*
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* Define glewGetProcAddress.
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*/
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#if defined(GLEW_REGAL)
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#if defined(GLEW_EGL)
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# define glewGetProcAddress(name) eglGetProcAddress((const char *)name)
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#elif defined(GLEW_REGAL)
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# define glewGetProcAddress(name) regalGetProcAddress((const GLchar *)name)
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#elif defined(GLEW_OSMESA)
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# define glewGetProcAddress(name) OSMesaGetProcAddress((const char *)name)
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@ -37,7 +37,7 @@ GLenum GLEWAPIENTRY glewInit (void)
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GLenum r;
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r = glewContextInit();
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if ( r != 0 ) return r;
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#if defined(GLEW_OSMESA) || defined(__ANDROID__) || defined(__native_client__) || defined(__HAIKU__)
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#if defined(GLEW_EGL) || defined(GLEW_OSMESA) || defined(__ANDROID__) || defined(__native_client__) || defined(__HAIKU__)
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return r;
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#elif defined(_WIN32)
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return wglewInit();
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@ -4,7 +4,7 @@
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return ret;
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}
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#elif !defined(GLEW_OSMESA) && !defined(__ANDROID__) && !defined(__native_client__) && !defined(__HAIKU__) && !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
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#elif !defined(GLEW_EGL) && !defined(GLEW_OSMESA) && !defined(__ANDROID__) && !defined(__native_client__) && !defined(__HAIKU__) && !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
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GLboolean glxewIsSupported (const char* name)
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{
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@ -4,7 +4,7 @@
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return ret;
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}
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#if defined(_WIN32) && !defined(GLEW_OSMESA)
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#if defined(_WIN32) && !defined(GLEW_EGL) && !defined(GLEW_OSMESA)
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GLboolean GLEWAPIENTRY wglewIsSupported (const char* name)
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{
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@ -1,6 +1,6 @@
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}
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#elif !defined(GLEW_OSMESA) /* _UNIX */
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#elif !defined(GLEW_EGL) && !defined(GLEW_OSMESA) /* _UNIX */
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static void glxewInfo ()
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{
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@ -2,7 +2,9 @@
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#include <stdlib.h>
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#include <string.h>
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#include <GL/glew.h>
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#if defined(GLEW_OSMESA)
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#if defined(GLEW_EGL)
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#include <EGL/egl.h>
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#elif defined(GLEW_OSMESA)
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#define GLAPI extern
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#include <GL/osmesa.h>
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#elif defined(_WIN32)
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@ -25,7 +27,8 @@ static FILE* f;
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struct createParams
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{
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#if defined(GLEW_OSMESA)
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#if defined(GLEW_EGL)
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#elif defined(GLEW_OSMESA)
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#elif defined(_WIN32)
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int pixelformat;
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#elif !defined(__APPLE__) && !defined(__HAIKU__) || defined(GLEW_APPLE_GLX)
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@ -7,9 +7,10 @@
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int main (int argc, char** argv)
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{
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GLuint err;
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struct createParams params =
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struct createParams params =
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{
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#if defined(GLEW_OSMESA)
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#if defined(GLEW_EGL)
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#elif defined(GLEW_OSMESA)
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#elif defined(_WIN32)
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-1, /* pixelformat */
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#elif !defined(__HAIKU__) && !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
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@ -25,17 +26,18 @@ int main (int argc, char** argv)
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if (glewParseArgs(argc-1, argv+1, ¶ms))
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{
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fprintf(stderr, "Usage: glewinfo "
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#if defined(GLEW_OSMESA)
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#if defined(GLEW_EGL)
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#elif defined(GLEW_OSMESA)
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#elif defined(_WIN32)
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"[-pf <pixelformat>] "
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"[-pf <pixelformat>] "
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#elif !defined(__HAIKU__) && !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
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"[-display <display>] "
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"[-visual <visual id>] "
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"[-display <display>] "
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"[-visual <visual id>] "
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#endif
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"[-version <OpenGL version>] "
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"[-profile core|compatibility] "
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"[-flag debug|forward]"
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"\n");
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"[-version <OpenGL version>] "
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"[-profile core|compatibility] "
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"[-flag debug|forward]"
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"\n");
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return 1;
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}
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@ -68,18 +70,20 @@ int main (int argc, char** argv)
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fprintf(f, " GLEW Extension Info\n");
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fprintf(f, "---------------------------\n\n");
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fprintf(f, "GLEW version %s\n", glewGetString(GLEW_VERSION));
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#if defined(GLEW_OSMESA)
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#if defined(GLEW_EGL)
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#elif defined(GLEW_OSMESA)
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#elif defined(_WIN32)
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fprintf(f, "Reporting capabilities of pixelformat %d\n", params.pixelformat);
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#elif !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
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fprintf(f, "Reporting capabilities of display %s, visual 0x%x\n",
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fprintf(f, "Reporting capabilities of display %s, visual 0x%x\n",
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params.display == NULL ? getenv("DISPLAY") : params.display, params.visual);
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#endif
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fprintf(f, "Running on a %s from %s\n",
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glGetString(GL_RENDERER), glGetString(GL_VENDOR));
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fprintf(f, "Running on a %s from %s\n",
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glGetString(GL_RENDERER), glGetString(GL_VENDOR));
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fprintf(f, "OpenGL version %s is supported\n", glGetString(GL_VERSION));
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glewInfo();
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#if defined(GLEW_OSMESA)
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#if defined(GLEW_EGL)
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#elif defined(GLEW_OSMESA)
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#elif defined(_WIN32)
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wglewInfo();
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#else
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@ -118,7 +122,8 @@ GLboolean glewParseArgs (int argc, char** argv, struct createParams *params)
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else return GL_TRUE;
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++p;
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}
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#if defined(GLEW_OSMESA)
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#if defined(GLEW_EGL)
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#elif defined(GLEW_OSMESA)
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#elif defined(_WIN32)
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else if (!strcmp(argv[p], "-pf") || !strcmp(argv[p], "-pixelformat"))
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{
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@ -145,7 +150,44 @@ GLboolean glewParseArgs (int argc, char** argv, struct createParams *params)
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/* ------------------------------------------------------------------------ */
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#if defined(GLEW_OSMESA)
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#if defined(GLEW_EGL)
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EGLDisplay display;
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EGLContext ctx;
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/* See: http://stackoverflow.com/questions/12662227/opengl-es2-0-offscreen-context-for-fbo-rendering */
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GLboolean glewCreateContext (struct createParams *params)
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{
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EGLSurface surface;
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EGLint majorVersion, minorVersion;
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const EGLint attr[] = {
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EGL_BUFFER_SIZE, 32,
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EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER,
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EGL_CONFORMANT, EGL_OPENGL_BIT,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
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EGL_NONE
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};
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EGLConfig config;
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EGLint numConfig;
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display = eglGetDisplay((EGLNativeDisplayType) 0);
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if (!eglInitialize(display, &majorVersion, &minorVersion))
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return GL_TRUE;
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eglBindAPI(EGL_OPENGL_API);
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if (!eglChooseConfig(display, attr, &config, 1, &numConfig) || (numConfig != 1))
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return GL_TRUE;
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surface = eglCreateWindowSurface(display, config, (EGLNativeWindowType) NULL, NULL);
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ctx = eglCreateContext(display, config, NULL, NULL);
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if (NULL == ctx) return GL_TRUE;
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eglMakeCurrent(display, surface, surface, ctx);
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return GL_FALSE;
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}
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void glewDestroyContext ()
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{
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if (NULL != ctx) eglDestroyContext(display, ctx);
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}
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#elif defined(GLEW_OSMESA)
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OSMesaContext ctx;
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static const GLint osmFormat = GL_UNSIGNED_BYTE;
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@ -190,7 +232,7 @@ GLboolean glewCreateContext (struct createParams* params)
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wc.lpszClassName = "GLEW";
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if (0 == RegisterClass(&wc)) return GL_TRUE;
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/* create window */
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wnd = CreateWindow("GLEW", "GLEW", 0, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
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wnd = CreateWindow("GLEW", "GLEW", 0, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
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CW_USEDEFAULT, NULL, NULL, GetModuleHandle(NULL), NULL);
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if (NULL == wnd) return GL_TRUE;
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/* get the device context */
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@ -378,8 +420,8 @@ GLboolean glewCreateContext (struct createParams *params)
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cmap = XCreateColormap(dpy, RootWindow(dpy, vi->screen), vi->visual, AllocNone);
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swa.border_pixel = 0;
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swa.colormap = cmap;
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wnd = XCreateWindow(dpy, RootWindow(dpy, vi->screen),
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0, 0, 1, 1, 0, vi->depth, InputOutput, vi->visual,
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wnd = XCreateWindow(dpy, RootWindow(dpy, vi->screen),
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0, 0, 1, 1, 0, vi->depth, InputOutput, vi->visual,
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CWBorderPixel | CWColormap, &swa);
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/* make context current */
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if (!glXMakeCurrent(dpy, wnd, ctx)) return GL_TRUE;
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@ -2,7 +2,7 @@
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/* ------------------------------------------------------------------------ */
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#if defined(_WIN32) && !defined(GLEW_OSMESA)
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#if defined(_WIN32) && !defined(GLEW_EGL) && !defined(GLEW_OSMESA)
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static void wglewInfo ()
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{
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