From 5e4dbac425d1c9f1461d071b2a05d26b2c75831f Mon Sep 17 00:00:00 2001 From: Carl Worth Date: Thu, 27 Jun 2013 14:08:39 -0700 Subject: [PATCH] test: Add test using GLX with dlopen and dlsym to find symbols Gradually building out the test suite to something useful here. --- test/.gitignore | 1 + test/Makefile.local | 14 ++- test/fips-test | 5 +- test/glx-dlopen-dlsym.c | 252 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 269 insertions(+), 3 deletions(-) create mode 100644 test/glx-dlopen-dlsym.c diff --git a/test/.gitignore b/test/.gitignore index c1f0a2a..9b4824f 100644 --- a/test/.gitignore +++ b/test/.gitignore @@ -1 +1,2 @@ glx-link-call +glx-dlopen-dlsym diff --git a/test/Makefile.local b/test/Makefile.local index b40ee28..09072e0 100644 --- a/test/Makefile.local +++ b/test/Makefile.local @@ -8,6 +8,7 @@ test_programs = ifeq ($(HAVE_X11),Yes) test_programs += $(dir)/glx-link-call +test_programs += $(dir)/glx-dlopen-dlsym endif glx_link_call_srcs = \ @@ -19,11 +20,20 @@ glx_link_call_modules = $(glx_link_call_srcs:.c=.o) $(dir)/glx-link-call: $(glx_link_call_modules) $(call quiet,$(FIPS_LINKER) $(CFLAGS)) $^ $(GL_LDFLAGS) $(X11_LDFLAGS) -o $@ +glx_dlopen_dlsym_srcs = \ + $(dir)/glx-dlopen-dlsym.c \ + $(dir)/util.c + +glx_dlopen_dlsym_modules = $(glx_dlopen_dlsym_srcs:.c=.o) + +$(dir)/glx-dlopen-dlsym: $(glx_dlopen_dlsym_modules) + $(call quiet,$(FIPS_LINKER) $(CFLAGS)) $^ -ldl $(X11_LDFLAGS) -o $@ + test: all $(test_programs) @${dir}/fips-test check: test -SRCS := $(SRCS) $(glx_link_call_srcs) +SRCS := $(SRCS) $(glx_link_call_srcs) $(glx_dlopen_dlsym_srcs) -CLEAN += $(test_programs) $(glx_link_call_modules) +CLEAN += $(test_programs) $(glx_link_call_modules) $(glx_dlopen_dlsym_modules) diff --git a/test/fips-test b/test/fips-test index cada79b..329fc54 100755 --- a/test/fips-test +++ b/test/fips-test @@ -26,9 +26,12 @@ echo "" printf " Win-sys Link-mode Lookup\n" printf " ------- ------------- ------------\n" -printf "Testing GLX link to libGL direct calls ... " +printf "Testing GLX link to libGL direct calls ... " test glx-link-call +printf "Testing GLX dlopen(libGL) dlsym ... " +test glx-dlopen-dlsym + echo "" if [ $errors -gt 0 ]; then diff --git a/test/glx-dlopen-dlsym.c b/test/glx-dlopen-dlsym.c new file mode 100644 index 0000000..b4f8c3e --- /dev/null +++ b/test/glx-dlopen-dlsym.c @@ -0,0 +1,252 @@ +/* Copyright © 2013, Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS 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 SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +/* Perform some simple drawing via OpenGL as follows: + * + * 1. Using GLX to construct an OpenGL context + * 2. By using dlopen to dynamically load libGL.so + * 3. By using dlsym to lookup OpenGL functions + */ + +#define GL_GLEXT_PROTOTYPES +#include +#include + +#include +#include +#include + +#include "util.h" + +void (*my_glClear) (GLbitfield); +void (*my_glClearColor) (GLclampf, GLclampf, GLclampf, GLclampf); +void (*my_glLoadIdentity) (void); +void (*my_glMatrixMode) (GLenum); +void (*my_glOrtho) (GLdouble, GLdouble, GLdouble, GLdouble, GLdouble, GLdouble); +void (*my_glViewport) (GLint, GLint, GLsizei, GLsizei); +XVisualInfo * (*my_glXChooseVisual) (Display *, int, int *); +GLXContext (*my_glXCreateContext) (Display *, XVisualInfo *, GLXContext, Bool); +void (*my_glXDestroyContext) (Display *, GLXContext); +Bool (*my_glXMakeCurrent) (Display *, GLXDrawable, GLXContext); +void (*my_glXSwapBuffers) (Display *, GLXDrawable); + +static void +set_2d_projection (int width, int height) +{ + my_glMatrixMode (GL_PROJECTION); + my_glLoadIdentity (); + my_glOrtho (0, width, height, 0, 0, 1); + my_glMatrixMode (GL_MODELVIEW); +} + +static void +paint_rgb_using_clear (double r, double g, double b) +{ + my_glClearColor(r, g, b, 1.0); + my_glClear(GL_COLOR_BUFFER_BIT); +} + +static void +draw (Display *dpy, Window window, int width, int height) +{ + int i; + int visual_attr[] = { + GLX_RGBA, + GLX_RED_SIZE, 8, + GLX_GREEN_SIZE, 8, + GLX_BLUE_SIZE, 8, + GLX_ALPHA_SIZE, 8, + GLX_DOUBLEBUFFER, + GLX_DEPTH_SIZE, 24, + GLX_STENCIL_SIZE, 8, + GLX_X_VISUAL_TYPE, GLX_DIRECT_COLOR, + None + }; + + /* Window and context setup. */ + XVisualInfo *visual_info = my_glXChooseVisual(dpy, 0, visual_attr); + GLXContext ctx = my_glXCreateContext(dpy, visual_info, NULL, True); + my_glXMakeCurrent(dpy, window, ctx); + + my_glViewport(0, 0, width, height); + + set_2d_projection (width, height); + +/* Simply count through some colors, frame by frame. */ +#define RGB(frame) (((frame+1)/4) % 2), (((frame+1)/2) % 2), ((frame+1) % 2) + + int frame = 0; + for (i = 0; i < 2; i++) { + /* Frame: Draw a solid (magenta) frame */ + paint_rgb_using_clear (RGB(frame)); + my_glXSwapBuffers (dpy, window); + frame++; + + /* Frame: Draw a solid (yellow) frame */ + paint_rgb_using_clear (RGB(frame)); + my_glXSwapBuffers (dpy, window); + frame++; + + /* Frame: Draw a solid (cyan) frame */ + paint_rgb_using_clear (RGB(frame)); + my_glXSwapBuffers (dpy, window); + frame++; + } + + /* Cleanup */ + my_glXDestroyContext (dpy, ctx); +} + +static void +handle_events(Display *dpy, Window window) +{ + XEvent xev; + int width = 0; + int height = 0; + + XNextEvent (dpy, &xev); + + while (1) { + XNextEvent (dpy, &xev); + switch (xev.type) { + case ConfigureNotify: + width = xev.xconfigure.width; + height = xev.xconfigure.height; + break; + case Expose: + if (xev.xexpose.count == 0) { + draw (dpy, window, width, height); + return; + } + break; + } + } +} + +static void +resolve_symbols (void) +{ + void *gl_handle; + char *error; + + gl_handle = dlopen ("libGL.so", RTLD_LAZY); + if (gl_handle == NULL) { + fprintf (stderr, "Error: Failed to open libGL.so\n"); + exit (1); + } + + /* Clear errors. */ + dlerror(); + + my_glClear = dlsym (gl_handle, "glClear"); + error = dlerror (); + if (error) { + fprintf (stderr, "Failed to dlsym glClear: %s\n", error); + exit (1); + } + + my_glClearColor = dlsym (gl_handle, "glClearColor"); + error = dlerror (); + if (error) { + fprintf (stderr, "Failed to dlsym glClearColor: %s\n", error); + exit (1); + } + + my_glLoadIdentity = dlsym (gl_handle, "glLoadIdentity"); + error = dlerror (); + if (error) { + fprintf (stderr, "Failed to dlsym glLoadIdentity: %s\n", error); + exit (1); + } + + my_glMatrixMode = dlsym (gl_handle, "glMatrixMode"); + error = dlerror (); + if (error) { + fprintf (stderr, "Failed to dlsym glMatrixMode: %s\n", error); + exit (1); + } + + my_glOrtho = dlsym (gl_handle, "glOrtho"); + error = dlerror (); + if (error) { + fprintf (stderr, "Failed to dlsym glOrtho: %s\n", error); + exit (1); + } + + my_glViewport = dlsym (gl_handle, "glViewport"); + error = dlerror (); + if (error) { + fprintf (stderr, "Failed to dlsym glViewport: %s\n", error); + exit (1); + } + + my_glXChooseVisual = dlsym (gl_handle, "glXChooseVisual"); + error = dlerror (); + if (error) { + fprintf (stderr, "Failed to dlsym glXChooseVisual: %s\n", error); + exit (1); + } + + my_glXCreateContext = dlsym (gl_handle, "glXCreateContext"); + error = dlerror (); + if (error) { + fprintf (stderr, "Failed to dlsym glXCreateContext: %s\n", error); + exit (1); + } + + my_glXDestroyContext = dlsym (gl_handle, "glXDestroyContext"); + error = dlerror (); + if (error) { + fprintf (stderr, "Failed to dlsym glXDestroyContext: %s\n", error); + exit (1); + } + + my_glXMakeCurrent = dlsym (gl_handle, "glXMakeCurrent"); + error = dlerror (); + if (error) { + fprintf (stderr, "Failed to dlsym glXMakeCurrent: %s\n", error); + exit (1); + } + + my_glXSwapBuffers = dlsym (gl_handle, "glXSwapBuffers"); + error = dlerror (); + if (error) { + fprintf (stderr, "Failed to dlsym glXSwapBuffers: %s\n", error); + exit (1); + } +} + +int +main (void) +{ + Display *dpy; + Window window; + + util_init_display_window (&dpy, &window); + + resolve_symbols (); + + handle_events (dpy, window); + + util_fini_display_window (dpy, window); + + return 0; +} -- 2.43.0