Revert "Always build shared glapi"

This reverts commit adefee50d9.

Shared glapi was never tested with --enable-xlib-glx and turns out
to cause a lot of problems.

Conflicts:

	configure.ac

configs/autoconf.in

@@ -15,6 +15,7 @@ ASM_FLAGS = @ASM_FLAGS@
 PIC_FLAGS = @PIC_FLAGS@
 DEFINES = @DEFINES@
 API_DEFINES = @API_DEFINES@
+SHARED_GLAPI = @SHARED_GLAPI@
 CFLAGS_NOVISIBILITY = @CPPFLAGS@ @CFLAGS@ \
 	$(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(ASM_FLAGS) $(DEFINES)
 CXXFLAGS_NOVISIBILITY = @CPPFLAGS@ @CXXFLAGS@ \

configure.ac

@@ -703,6 +703,18 @@ if test "x$enable_gles2" = xyes; then
 fi
 AC_SUBST([API_DEFINES])
 
+AC_ARG_ENABLE([shared-glapi],
+    [AS_HELP_STRING([--enable-shared-glapi],
+        [EXPERIMENTAL.  Enable shared glapi for OpenGL @<:@default=no@:>@])],
+    [enable_shared_glapi="$enableval"],
+    [enable_shared_glapi=no])
+
+SHARED_GLAPI="0"
+if test "x$enable_shared_glapi" = xyes; then
+    SHARED_GLAPI="1"
+fi
+AC_SUBST([SHARED_GLAPI])
+
 dnl
 dnl Driver configuration. Options are xlib, dri and osmesa right now.
 dnl More later: fbdev, ...
@@ -788,7 +800,7 @@ dnl Driver specific build directories
 dnl
 
 dnl this variable will be prepended to SRC_DIRS and is not exported
-CORE_DIRS="mapi/shared-glapi"
+CORE_DIRS=""
 
 SRC_DIRS=""
 GLU_DIRS="sgi"
@@ -798,6 +810,13 @@ GALLIUM_WINSYS_DIRS="sw"
 GALLIUM_DRIVERS_DIRS="galahad trace rbug noop identity"
 GALLIUM_STATE_TRACKERS_DIRS=""
 
+# build shared-glapi if enabled for OpenGL or if OpenGL ES is enabled
+case "x$enable_shared_glapi$enable_gles1$enable_gles2" in
+x*yes*)
+    CORE_DIRS="$CORE_DIRS mapi/shared-glapi"
+    ;;
+esac
+
 # build glapi if OpenGL is enabled
 if test "x$enable_opengl" = xyes; then
     CORE_DIRS="$CORE_DIRS mapi/glapi"
@@ -1365,6 +1384,13 @@ if test "x$enable_gbm" = xyes; then
 
     PKG_CHECK_MODULES([LIBUDEV], [libudev], [],
                       AC_MSG_ERROR([gbm needs udev]))
+
+    if test "x$enable_dri" = xyes; then
+        GBM_BACKEND_DIRS="$GBM_BACKEND_DIRS dri"
+        if test "$SHARED_GLAPI" -eq 0; then
+            AC_MSG_ERROR([gbm_dri requires --enable-shared-glapi])
+        fi
+    fi
 fi
 GBM_PC_REQ_PRIV="libudev"
 GBM_PC_LIB_PRIV="$DLOPEN_LIBS"

src/egl/drivers/dri2/Android.mk

@@ -34,6 +34,7 @@ LOCAL_SRC_FILES := \
 LOCAL_CFLAGS := \
 	-D_EGL_MAIN=_eglBuiltInDriverDRI2 \
 	-DDEFAULT_DRIVER_DIR=\"/system/lib/dri\" \
+	-DHAVE_SHARED_GLAPI \
 	-DHAVE_ANDROID_PLATFORM
 
 LOCAL_C_INCLUDES := \

src/egl/drivers/dri2/Makefile

@@ -21,6 +21,10 @@ EGL_LIBS = $(LIBUDEV_LIBS) $(DLOPEN_LIBS) $(LIBDRM_LIB)
 EGL_CFLAGS = -D_EGL_MAIN=_eglBuiltInDriverDRI2
 EGL_BUILTIN = true
 
+ifeq ($(SHARED_GLAPI),1)
+EGL_CFLAGS += -DHAVE_SHARED_GLAPI
+endif
+
 ifneq ($(findstring x11, $(EGL_PLATFORMS)),)
 EGL_SOURCES += platform_x11.c
 EGL_INCLUDES += -DHAVE_X11_PLATFORM $(XCB_DRI2_CFLAGS)

src/egl/drivers/dri2/egl_dri2.c

@@ -1362,10 +1362,18 @@ static EGLBoolean
 dri2_load(_EGLDriver *drv)
 {
    struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
+#ifdef HAVE_SHARED_GLAPI
 #ifdef HAVE_ANDROID_PLATFORM
    const char *libname = "libglapi.so";
 #else
    const char *libname = "libglapi.so.0";
+#endif
+#else
+   /*
+    * Both libGL.so and libglapi.so are glapi providers.  There is no way to
+    * tell which one to load.
+    */
+   const char *libname = NULL;
 #endif
    void *handle;
 

src/gallium/targets/egl-static/Makefile

@@ -8,6 +8,7 @@
 #   EGL_PLATFORMS       - platforms to support
 #   EGL_CLIENT_APIS     - state trackers to support
 #   GALLIUM_WINSYS_DIRS - pipe drivers to support
+#   SHARED_GLAPI        - st/mesa can be statically linked or not
 #
 
 TOP = ../../../..
@@ -69,8 +70,14 @@ endif
 # st/mesa
 ifneq ($(filter $(GL_LIB), $(EGL_CLIENT_APIS)),)
 egl_CPPFLAGS += -I$(TOP)/src/mesa $(API_DEFINES)
+# make st/mesa built-in when there is a single glapi provider
+ifeq ($(SHARED_GLAPI),1)
 egl_LIBS += $(TOP)/src/mesa/libmesagallium.a
 egl_SYS += -lm -lpthread $(DLOPEN_LIBS) -l$(GLAPI_LIB)
+else
+egl_CPPFLAGS += -D_EGL_EXTERNAL_GL=1
+OUTPUTS += st_GL
+endif # SHARED_GLAPI
 endif
 
 # st/vega

src/gallium/targets/libgl-xlib/Makefile

@@ -58,7 +58,9 @@ GL_LIB_DEPS += $(LLVM_LIBS)
 LDFLAGS += $(LLVM_LDFLAGS)
 endif
 
+ifeq ($(SHARED_GLAPI),1)
 GL_LIB_DEPS := -L$(TOP)/$(LIB_DIR) -l$(GLAPI_LIB) $(GL_LIB_DEPS)
+endif
 
 
 .SUFFIXES : .cpp

src/glx/Makefile

@@ -49,7 +49,10 @@ SOURCES = \
 	  applegl_glx.c
 
 
+ifeq ($(SHARED_GLAPI),1)
 GL_LIB_DEPS := -L$(TOP)/$(LIB_DIR) -l$(GLAPI_LIB) $(GL_LIB_DEPS)
+EXTRA_DEFINES += -DGLX_SHARED_GLAPI
+endif
 
 # override GLAPI_LIB
 GLAPI_LIB = $(TOP)/src/mapi/glapi/libglapi.a

src/glx/SConscript

@@ -31,6 +31,9 @@ if env['HAVE_XF86VIDMODE']:
     env.Append(CPPDEFINES = ['XF86VIDMODE'])
     env.PkgUseModules('XF86VIDMODE')
 
+if False: # XXX: SHARED_GLAPI
+    env.Append(CPPDEFINES = ['GLX_SHARED_GLAPI'])
+
 sources = [
     'clientattrib.c',
     'clientinfo.c',

src/glx/glxcmds.c

@@ -2647,7 +2647,9 @@ _X_EXPORT void (*glXGetProcAddressARB(const GLubyte * procName)) (void)
    f = (gl_function) get_glx_proc_address((const char *) procName);
    if ((f == NULL) && (procName[0] == 'g') && (procName[1] == 'l')
        && (procName[2] != 'X')) {
+#ifdef GLX_SHARED_GLAPI
       f = (gl_function) __indirect_get_proc_address((const char *) procName);
+#endif
       if (!f)
          f = (gl_function) _glapi_get_proc_address((const char *) procName);
       if (!f) {

src/glx/indirect.c

@@ -10672,6 +10672,8 @@ __indirect_glFramebufferTextureLayerEXT(GLenum target, GLenum attachment,
 }
 
 
+#ifdef GLX_SHARED_GLAPI
+
 static const struct proc_pair {
     const char *name;
     _glapi_proc proc;
@@ -10727,6 +10729,8 @@ __indirect_get_proc_address(const char *name)
     return (pair) ? pair->proc : NULL;
 }
 
+#endif /* GLX_SHARED_GLAPI */
+
 
 #undef FASTCALL
 #undef NOINLINE

src/glx/indirect.h

@@ -711,7 +711,10 @@ extern _X_HIDDEN GLboolean __indirect_glIsRenderbufferEXT(GLuint renderbuffer);
 extern _X_HIDDEN void __indirect_glRenderbufferStorageEXT(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
 extern _X_HIDDEN void __indirect_glBlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
 extern _X_HIDDEN void __indirect_glFramebufferTextureLayerEXT(GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer);
+
+#ifdef GLX_SHARED_GLAPI
 extern _X_HIDDEN void (*__indirect_get_proc_address(const char *name))(void);
+#endif
 
 #  undef FASTCALL
 #  undef NOINLINE

src/mapi/glapi/Makefile

@@ -15,6 +15,7 @@ glapi_CPPFLAGS := \
 	-I$(TOP)/src/mapi \
 	-I$(TOP)/src/mesa
 
+ifeq ($(SHARED_GLAPI),1)
 glapi_CPPFLAGS += \
 	-DMAPI_MODE_BRIDGE \
 	-DMAPI_ABI_HEADER=\"glapi/glapi_mapi_tmp.h\"
@@ -23,6 +24,14 @@ glapi_SOURCES := $(addprefix $(MAPI)/, $(MAPI_BRIDGE_SOURCES))
 glapi_GLAPI_OBJECTS :=
 glapi_ASM_OBJECTS :=
 glapi_MAPI_OBJECTS := $(MAPI_BRIDGE_SOURCES:.c=.o)
+else
+glapi_CPPFLAGS += -DMAPI_MODE_UTIL
+glapi_SOURCES := $(GLAPI_SOURCES) $(addprefix $(MAPI)/, $(MAPI_UTIL_SOURCES))
+
+glapi_GLAPI_OBJECTS := $(GLAPI_SOURCES:.c=.o)
+glapi_ASM_OBJECTS := $(GLAPI_ASM_SOURCES:.S=.o)
+glapi_MAPI_OBJECTS := $(MAPI_UTIL_SOURCES:.c=.o)
+endif # SHARED_GLAPI
 
 glapi_OBJECTS := \
 	$(glapi_GLAPI_OBJECTS) \
@@ -50,10 +59,14 @@ clean:
 	-rm -f lib$(TARGET).a
 	-rm -f depend depend.bak
 
+ifeq ($(SHARED_GLAPI),1)
 # workaround a bug in makedepend
 makedepend_CPPFLAGS := \
 	$(filter-out -DMAPI_ABI_HEADER=%, $(glapi_CPPFLAGS))
 $(glapi_OBJECTS): glapi_mapi_tmp.h
+else
+makedepend_CPPFLAGS := $(glapi_CPPFLAGS)
+endif
 
 depend: $(glapi_SOURCES)
 	@ echo "running $(MKDEP)"

src/mapi/glapi/gen/glX_proto_send.py

@@ -361,6 +361,8 @@ const GLuint __glXDefaultPixelStore[9] = { 0, 0, 0, 0, 0, 0, 0, 0, 1 };
 					procs[n] = func.static_glx_name(n)
 
 		print """
+#ifdef GLX_SHARED_GLAPI
+
 static const struct proc_pair
 {
    const char *name;
@@ -394,6 +396,8 @@ __indirect_get_proc_address(const char *name)
 
    return (pair) ? pair->proc : NULL;
 }
+
+#endif /* GLX_SHARED_GLAPI */
 """
 		return
 
@@ -1047,7 +1051,9 @@ extern _X_HIDDEN NOINLINE FASTCALL GLubyte * __glXSetupVendorRequest(
 					break
 
 		print ''
+		print '#ifdef GLX_SHARED_GLAPI'
 		print 'extern _X_HIDDEN void (*__indirect_get_proc_address(const char *name))(void);'
+		print '#endif'
 
 
 def show_usage():

src/mesa/drivers/x11/Makefile

@@ -44,7 +44,9 @@ INCLUDE_DIRS = \
 
 CORE_MESA = $(TOP)/src/mesa/libmesa.a $(TOP)/src/mapi/glapi/libglapi.a
 
+ifeq ($(SHARED_GLAPI),1)
 GL_LIB_DEPS := -L$(TOP)/$(LIB_DIR) -l$(GLAPI_LIB) $(GL_LIB_DEPS)
+endif
 
 
 .c.o: