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authorChia-I Wu <olvaffe@gmail.com>2009-09-28 17:25:48 +0800
committerBrian Paul <brianp@vmware.com>2009-10-13 12:00:36 -0600
commit5541988578054345ca70b7ed7972710396e61b44 (patch)
tree719d43f257ccfa92af9c979c0cdd4431242163f9 /src/egl/main
parent1cc1c3a0336d74e518417e2e93e141171a50542b (diff)
egl: Add support for driver built-in.
This allows an EGL driver to be compiled together with libEGL.so. It eliminates the need to specify a driver, or support module loading on new platforms. Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Diffstat (limited to 'src/egl/main')
-rw-r--r--src/egl/main/egldriver.c157
-rw-r--r--src/egl/main/egllog.c4
2 files changed, 93 insertions, 68 deletions
diff --git a/src/egl/main/egldriver.c b/src/egl/main/egldriver.c
index 87786e36bb..0c76c79973 100644
--- a/src/egl/main/egldriver.c
+++ b/src/egl/main/egldriver.c
@@ -22,59 +22,70 @@
#if defined(_EGL_PLATFORM_X)
#include <dlfcn.h>
-#elif defined(_EGL_PLATFORM_WINDOWS)
-/* Use static linking on Windows for now */
-#define WINDOWS_STATIC_LINK
#endif
+
/**
* Wrappers for dlopen/dlclose()
*/
#if defined(_EGL_PLATFORM_WINDOWS)
-#ifdef WINDOWS_STATIC_LINK
- static const char *DefaultDriverName = "Windows EGL Static Library";
-#else
- /* XXX Need to decide how to do dynamic name lookup on Windows */
- static const char *DefaultDriverName = "TBD";
-#endif
- typedef HMODULE lib_handle;
-
- static HMODULE
- open_library(const char *filename)
- {
-#ifdef WINDOWS_STATIC_LINK
- return 0;
-#else
- return LoadLibrary(filename);
-#endif
- }
- static void
- close_library(HMODULE lib)
- {
-#ifdef WINDOWS_STATIC_LINK
-#else
- FreeLibrary(lib);
-#endif
- }
+
+/* XXX Need to decide how to do dynamic name lookup on Windows */
+static const char DefaultDriverName[] = "TBD";
+
+typedef HMODULE lib_handle;
+
+static HMODULE
+open_library(const char *filename)
+{
+ return LoadLibrary(filename);
+}
+
+static void
+close_library(HMODULE lib)
+{
+ FreeLibrary(lib);
+}
+
#elif defined(_EGL_PLATFORM_X)
- static const char *DefaultDriverName = "egl_softpipe";
- typedef void * lib_handle;
- static void *
- open_library(const char *filename)
- {
- return dlopen(filename, RTLD_LAZY);
- }
+static const char DefaultDriverName[] = "egl_softpipe";
+
+typedef void * lib_handle;
+
+static void *
+open_library(const char *filename)
+{
+ return dlopen(filename, RTLD_LAZY);
+}
+
+static void
+close_library(void *lib)
+{
+ dlclose(lib);
+}
+
+#else /* _EGL_PLATFORM_NO_OS */
+
+static const char DefaultDriverName[] = "builtin";
+
+typedef void *lib_handle;
+
+static INLINE void *
+open_library(const char *filename)
+{
+ return (void *) filename;
+}
+
+static INLINE void
+close_library(void *lib)
+{
+}
+
- static void
- close_library(void *lib)
- {
- dlclose(lib);
- }
-
#endif
@@ -95,14 +106,22 @@ _eglChooseDriver(_EGLDisplay *dpy, char **argsRet)
path = _eglstrdup(path);
#if defined(_EGL_PLATFORM_X)
- if (!path && dpy->NativeDisplay) {
+ if (!path && dpy && dpy->NativeDisplay) {
/* assume (wrongly!) that the native display is a display string */
path = _eglSplitDisplayString((const char *) dpy->NativeDisplay, &args);
}
suffix = "so";
#elif defined(_EGL_PLATFORM_WINDOWS)
suffix = "dll";
-#endif /* _EGL_PLATFORM_X */
+#else /* _EGL_PLATFORM_NO_OS */
+ if (path) {
+ /* force the use of the default driver */
+ _eglLog(_EGL_DEBUG, "ignore EGL_DRIVER");
+ free(path);
+ path = NULL;
+ }
+ suffix = NULL;
+#endif
if (!path)
path = _eglstrdup(DefaultDriverName);
@@ -136,43 +155,48 @@ _eglChooseDriver(_EGLDisplay *dpy, char **argsRet)
static _EGLMain_t
_eglOpenLibrary(const char *driverPath, lib_handle *handle)
{
- _EGLMain_t mainFunc;
lib_handle lib;
+ _EGLMain_t mainFunc = NULL;
+ const char *error = "unknown error";
assert(driverPath);
-#if defined(_EGL_PLATFORM_WINDOWS)
-/* Use static linking on Windows for now */
-#ifdef WINDOWS_STATIC_LINK
- lib = 0;
- mainFunc = (_EGLMain_t)_eglMain;
-#else
- /* XXX untested */
_eglLog(_EGL_DEBUG, "dlopen(%s)", driverPath);
lib = open_library(driverPath);
- if (!lib) {
- _eglLog(_EGL_WARNING, "Could not open %s",
- driverPath);
- return NULL;
+
+#if defined(_EGL_PLATFORM_WINDOWS)
+ /* XXX untested */
+ if (lib)
+ mainFunc = (_EGLMain_t) GetProcAddress(lib, "_eglMain");
+#elif defined(_EGL_PLATFORM_X)
+ if (lib) {
+ mainFunc = (_EGLMain_t) dlsym(lib, "_eglMain");
+ if (!mainFunc)
+ error = dlerror();
+ }
+ else {
+ error = dlerror();
}
- mainFunc = (_EGLMain_t) GetProcAddress(lib, "_eglMain");
+#else /* _EGL_PLATFORM_NO_OS */
+ /* must be the default driver name */
+ if (strcmp(driverPath, DefaultDriverName) == 0)
+ mainFunc = (_EGLMain_t) _eglMain;
+ else
+ error = "not builtin driver";
#endif
-#elif defined(_EGL_PLATFORM_X)
- _eglLog(_EGL_DEBUG, "dlopen(%s)", driverPath);
- lib = open_library(driverPath);
+
if (!lib) {
- _eglLog(_EGL_WARNING, "Could not open %s (%s)",
- driverPath, dlerror());
+ _eglLog(_EGL_WARNING, "Could not open driver %s (%s)",
+ driverPath, error);
if (!getenv("EGL_DRIVER"))
_eglLog(_EGL_WARNING,
"The driver can be overridden by setting EGL_DRIVER");
return NULL;
}
- mainFunc = (_EGLMain_t) dlsym(lib, "_eglMain");
-#endif
if (!mainFunc) {
- _eglLog(_EGL_WARNING, "_eglMain not found in %s", driverPath);
+ _eglLog(_EGL_WARNING, "_eglMain not found in %s (%s)",
+ driverPath, error);
if (lib)
close_library(lib);
return NULL;
@@ -428,6 +452,11 @@ _eglFindAPIs(void)
const char *es2_libname = "libGLESv2.so";
const char *gl_libname = "libGL.so";
const char *vg_libname = "libOpenVG.so";
+#else /* _EGL_PLATFORM_NO_OS */
+ const char *es1_libname = NULL;
+ const char *es2_libname = NULL;
+ const char *gl_libname = NULL;
+ const char *vg_libname = NULL;
#endif
if ((lib = open_library(es1_libname))) {
diff --git a/src/egl/main/egllog.c b/src/egl/main/egllog.c
index 1d7a0a388c..23eb523eeb 100644
--- a/src/egl/main/egllog.c
+++ b/src/egl/main/egllog.c
@@ -21,11 +21,7 @@ static EGLint ReportingLevel = -1;
static void
log_level_initialize(void)
{
-#if defined(_EGL_PLATFORM_X)
char *log_env = getenv("EGL_LOG_LEVEL");
-#else
- char *log_env = NULL;
-#endif
if (log_env == NULL) {
ReportingLevel = FALLBACK_LOG_LEVEL;