[tests] Add a GLX_dummy dummy vendor library

This vendor library will be loaded by the API library in various
subtests in the test suite, and will implement the bare minimum
needed to verify features and code paths in the API library. This
includes creating a fake GL "context", making current to the
"context", and calling some GL functions.

4 files changed, 440 insertions, 0 deletions

diff --git a/tests/GLX_dummy/GLX_dummy.c b/tests/GLX_dummy/GLX_dummy.c
new file mode 100644
index 0000000..4448025
--- /dev/null
+++ b/tests/GLX_dummy/GLX_dummy.c
@@ -0,0 +1,381 @@
+/*
+ * Copyright (c) 2013, NVIDIA CORPORATION.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and/or associated documentation files (the
+ * "Materials"), to deal in the Materials without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Materials, and to
+ * permit persons to whom the Materials are furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * unaltered in all copies or substantial portions of the Materials.
+ * Any additions, deletions, or changes to the original source files
+ * must be clearly indicated in accompanying documentation.
+ *
+ * If only executable code is distributed, then the accompanying
+ * documentation must state that "this software is based in part on the
+ * work of the Khronos Group."
+ *
+ * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <GL/glx.h>
+#include <GL/glxint.h>
+
+#include "GLX_dummy.h"
+#include "libglxabi.h"
+#include "utils_misc.h"
+#include "compiler.h"
+
+
+static char *thisVendorName;
+static __GLXapiExports apiExports;
+
+static XVisualInfo*  dummyChooseVisual          (Display *dpy,
+                                                 int screen,
+                                                 int *attrib_list)
+{
+    return NULL;
+}
+
+static void          dummyCopyContext           (Display *dpy,
+                                                 GLXContext src,
+                                                 GLXContext dst,
+                                                 unsigned long mask)
+{
+    // nop
+}
+
+static GLXContext    dummyCreateContext         (Display *dpy,
+                                                 XVisualInfo *vis,
+                                                 GLXContext share_list,
+                                                 Bool direct)
+{
+    return NULL;
+}
+
+static GLXPixmap     dummyCreateGLXPixmap       (Display *dpy,
+                                                 XVisualInfo *vis,
+                                                 Pixmap pixmap)
+{
+    return None;
+}
+
+static void          dummyDestroyContext        (Display *dpy,
+                                              GLXContext ctx)
+{
+    free(ctx);
+}
+
+static void          dummyDestroyGLXPixmap      (Display *dpy,
+                                                 GLXPixmap pix)
+{
+    // nop
+}
+
+static int           dummyGetConfig             (Display *dpy,
+                                                 XVisualInfo *vis,
+                                                 int attrib,
+                                                 int *value)
+{
+    return 0;
+}
+
+static Bool          dummyIsDirect              (Display *dpy,
+                                                 GLXContext ctx)
+{
+    return False;
+}
+
+static Bool          dummyMakeCurrent           (Display *dpy,
+                                              GLXDrawable drawable,
+                                              GLXContext ctx)
+{
+    // This doesn't do anything, but fakes success
+    return True;
+}
+
+static void          dummySwapBuffers           (Display *dpy,
+                                                 GLXDrawable drawable)
+{
+    // nop
+}
+
+static void          dummyUseXFont              (Font font,
+                                                 int first,
+                                                 int count,
+                                                 int list_base)
+{
+    // nop
+}
+
+static void          dummyWaitGL                (void)
+{
+    // nop
+}
+
+static void          dummyWaitX                 (void)
+{
+    // nop
+}
+
+static const char*   dummyQueryServerString     (Display *dpy,
+                                                 int screen,
+                                                 int name)
+{
+    return NULL;
+}
+
+static const char*   dummyGetClientString     (Display *dpy,
+                                               int name)
+{
+    return NULL;
+}
+
+static const char*   dummyQueryExtensionsString (Display *dpy,
+                                                 int screen)
+{
+    return NULL;
+}
+
+static GLXFBConfig*  dummyChooseFBConfig        (Display *dpy,
+                                              int screen,
+                                              const int *attrib_list,
+                                              int *nelements)
+{
+    return NULL;
+}
+
+static GLXContext    dummyCreateNewContext      (Display *dpy,
+                                                 GLXFBConfig config,
+                                                 int render_type,
+                                                 GLXContext share_list,
+                                                 Bool direct)
+{
+    return NULL;
+}
+
+static GLXPbuffer    dummyCreatePbuffer         (Display *dpy,
+                                                 GLXFBConfig config,
+                                                 const int *attrib_list)
+{
+    return None;
+}
+
+static GLXPixmap     dummyCreatePixmap          (Display *dpy,
+                                                 GLXFBConfig config,
+                                                 Pixmap pixmap,
+                                                 const int *attrib_list)
+{
+    return None;
+}
+
+static GLXWindow     dummyCreateWindow          (Display *dpy,
+                                                 GLXFBConfig config,
+                                                 Window win,
+                                                 const int *attrib_list)
+{
+    return None;
+}
+
+static void          dummyDestroyPbuffer        (Display *dpy,
+                                                 GLXPbuffer pbuf)
+{
+    // nop
+}
+
+static void          dummyDestroyPixmap         (Display *dpy,
+                                                 GLXPixmap pixmap)
+{
+    // nop
+}
+
+static void          dummyDestroyWindow         (Display *dpy,
+                                                 GLXWindow win)
+{
+    // nop
+}
+
+static int           dummyGetFBConfigAttrib     (Display *dpy,
+                                                 GLXFBConfig config,
+                                                 int attribute,
+                                                 int *value)
+{
+    return 0;
+}
+
+static GLXFBConfig*  dummyGetFBConfigs          (Display *dpy,
+                                                 int screen,
+                                                 int *nelements)
+{
+    return NULL;
+}
+
+static void          dummyGetSelectedEvent      (Display *dpy,
+                                                 GLXDrawable draw,
+                                                 unsigned long *event_mask)
+{
+    // nop
+}
+
+static XVisualInfo*  dummyGetVisualFromFBConfig (Display *dpy,
+                                                 GLXFBConfig config)
+{
+    return NULL;
+}
+
+static Bool          dummyMakeContextCurrent    (Display *dpy, GLXDrawable draw,
+                                              GLXDrawable read, GLXContext ctx)
+{
+    // This doesn't do anything, but fakes success
+    return True;
+}
+
+static int           dummyQueryContext          (Display *dpy,
+                                                 GLXContext ctx,
+                                                 int attribute,
+                                                 int *value)
+{
+    return 0;
+}
+
+static void          dummyQueryDrawable         (Display *dpy,
+                                                 GLXDrawable draw,
+                                                 int attribute,
+                                                 unsigned int *value)
+{
+    // nop
+}
+
+static void          dummySelectEvent           (Display *dpy,
+                                                 GLXDrawable draw,
+                                                 unsigned long event_mask)
+{
+    // nop
+}
+
+/*
+ * Some immediate-mode GL functions which will be part of the static dispatch
+ * table.
+ */
+static void dummy_glBegin (void)
+{
+    // TODO
+}
+
+static void dummy_glVertex3fv(GLfloat *v)
+{
+    // TODO
+}
+
+static void dummy_glEnd (void)
+{
+    // TODO
+}
+
+
+static void dummyNopStub (void)
+{
+    // nop
+}
+
+// XXX non-entry point ABI functions
+static void         *dummyGetProcAddress         (const GLubyte *procName, void *data)
+{
+    return (void *)dummyNopStub;
+}
+
+static void dummyDestroyDispatchData(void *data)
+{
+    // nop
+}
+
+static void         *dummyGetDispatchAddress     (const GLubyte *procName)
+{
+    return NULL;
+}
+
+static void         dummySetDispatchIndex      (const GLubyte *procName, int index)
+{
+    // nop
+}
+
+static GLboolean    dummyGetDispatchProto   (const GLubyte *procName,
+                                          char ***function_names,
+                                          char **parameter_signature)
+{
+    return GL_FALSE;
+}
+
+
+static const __GLXapiImports dummyImports =
+{
+    /* Entry points */
+    .glx14ep = {
+        .chooseVisual = dummyChooseVisual,
+        .copyContext = dummyCopyContext,
+        .createContext = dummyCreateContext,
+        .createGLXPixmap = dummyCreateGLXPixmap,
+        .destroyContext = dummyDestroyContext,
+        .destroyGLXPixmap = dummyDestroyGLXPixmap,
+        .getConfig = dummyGetConfig,
+        .isDirect = dummyIsDirect,
+        .makeCurrent = dummyMakeCurrent,
+        .swapBuffers = dummySwapBuffers,
+        .useXFont = dummyUseXFont,
+        .waitGL = dummyWaitGL,
+        .waitX = dummyWaitX,
+        .queryServerString = dummyQueryServerString,
+        .getClientString = dummyGetClientString,
+        .queryExtensionsString = dummyQueryExtensionsString,
+        .chooseFBConfig = dummyChooseFBConfig,
+        .createNewContext = dummyCreateNewContext,
+        .createPbuffer = dummyCreatePbuffer,
+        .createPixmap = dummyCreatePixmap,
+        .createWindow = dummyCreateWindow,
+        .destroyPbuffer = dummyDestroyPbuffer,
+        .destroyPixmap = dummyDestroyPixmap,
+        .destroyWindow = dummyDestroyWindow,
+        .getFBConfigAttrib = dummyGetFBConfigAttrib,
+        .getFBConfigs = dummyGetFBConfigs,
+        .getSelectedEvent = dummyGetSelectedEvent,
+        .getVisualFromFBConfig = dummyGetVisualFromFBConfig,
+        .makeContextCurrent = dummyMakeContextCurrent,
+        .queryContext = dummyQueryContext,
+        .queryDrawable = dummyQueryDrawable,
+        .selectEvent = dummySelectEvent,
+    },
+
+    /* Non-entry points */
+    .glxvc = {
+        .getProcAddress = dummyGetProcAddress,
+        .destroyDispatchData = dummyDestroyDispatchData,
+        .getDispatchAddress = dummyGetDispatchAddress,
+        .setDispatchIndex = dummySetDispatchIndex,
+        .getDispatchProto = dummyGetDispatchProto
+    }
+};
+
+PUBLIC __GLX_MAIN_PROTO(version, exports, vendorName)
+{
+    thisVendorName = strdup(vendorName);
+    if (version <= GLX_VENDOR_ABI_VERSION) {
+        memcpy(&apiExports, exports, sizeof(*exports));
+        return &dummyImports;
+    } else {
+        return NULL;
+    }
+}
diff --git a/tests/GLX_dummy/GLX_dummy.h b/tests/GLX_dummy/GLX_dummy.h
new file mode 100644
index 0000000..c479028
--- /dev/null
+++ b/tests/GLX_dummy/GLX_dummy.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2013, NVIDIA CORPORATION.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and/or associated documentation files (the
+ * "Materials"), to deal in the Materials without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Materials, and to
+ * permit persons to whom the Materials are furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * unaltered in all copies or substantial portions of the Materials.
+ * Any additions, deletions, or changes to the original source files
+ * must be clearly indicated in accompanying documentation.
+ *
+ * If only executable code is distributed, then the accompanying
+ * documentation must state that "this software is based in part on the
+ * work of the Khronos Group."
+ *
+ * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+ */
+
+#ifndef __GLX_MAKECURRENT_H__
+#define __GLX_MAKECURRENT_H__
+
+#include <GL/gl.h>
+
+/*
+ * TODO: Will contain definition of the fake GL extension functions exported by
+ * the GLX_makecurrent vendor library used in the testglxmakecurrent test.
+ */
+
+#endif
diff --git a/tests/GLX_dummy/Makefile.am b/tests/GLX_dummy/Makefile.am
new file mode 100644
index 0000000..b15ee36
--- /dev/null
+++ b/tests/GLX_dummy/Makefile.am
@@ -0,0 +1,19 @@
+lib_LTLIBRARIES = libGLX_dummy.la
+
+check-local: libGLX_dummy_copy
+
+.PHONY : libGLX_dummy_copy
+
+# HACK to get multiple copies of the dummy library for testing
+libGLX_dummy_copy : libGLX_dummy.la
+	cp .libs/libGLX_dummy.so.0.0.0 .libs/libGLX_dummy_0.so.0
+	cp .libs/libGLX_dummy.so.0.0.0 .libs/libGLX_dummy_1.so.0
+
+GLX_ABI_DIR = $(top_builddir)/src/GLX
+
+libGLX_dummy_la_CFLAGS =             \
+	-I$(GLX_ABI_DIR)                 \
+	-I$(top_builddir)/src/util       \
+	-I$(top_builddir)/include        \
+	-Wno-error=unused-function
+libGLX_dummy_la_SOURCES = GLX_dummy.c
diff --git a/tests/GLX_dummy/TODO b/tests/GLX_dummy/README
index 2356cf6..2356cf6 100644
--- a/tests/GLX_dummy/TODO
+++ b/tests/GLX_dummy/README