From a81ef14228c6fe2893527b7b5f12855c90db3f8e Mon Sep 17 00:00:00 2001 From: Chia-I Wu Date: Wed, 23 Jun 2010 21:36:20 +0800 Subject: st/egl: Build a single EGL driver. This change makes st/egl build a single egl_gallium.so and multiple st_.so and pipe_.so. When a display is initialized, the corresponding pipe driver will be loaded. When a context is created, the corresponding state tracker will be loaded. Unlike DRI drivers, no ABI compatibility is maintained. egl_gallium, pipe drivers and state trackers should always be distributed as a single package. As such, there is only a single src/gallium/targets/egl/ that builds everything for the package. --- src/gallium/targets/egl/egl.c | 165 ++++++++++++++++++++++++++++++++++++------ 1 file changed, 144 insertions(+), 21 deletions(-) (limited to 'src/gallium/targets/egl/egl.c') diff --git a/src/gallium/targets/egl/egl.c b/src/gallium/targets/egl/egl.c index 831adf7c765..d9d89485c3c 100644 --- a/src/gallium/targets/egl/egl.c +++ b/src/gallium/targets/egl/egl.c @@ -34,21 +34,38 @@ #include "egllog.h" #include "state_tracker/st_api.h" -#include "softpipe/sp_public.h" -#include "llvmpipe/lp_public.h" -#include "target-helpers/wrap_screen.h" -#include "common/egl_g3d_loader.h" #include "state_tracker/drm_driver.h" +#include "common/egl_g3d_loader.h" struct egl_g3d_loader egl_g3d_loader; static struct st_module { boolean initialized; - const char *name; + char *name; struct util_dl_library *lib; struct st_api *stapi; } st_modules[ST_API_COUNT]; +static struct pipe_module { + boolean initialized; + char *name; + struct util_dl_library *lib; + const struct drm_driver_descriptor *drmdd; + struct pipe_screen *(*swrast_create_screen)(struct sw_winsys *); +} pipe_modules[16]; + +static char * +loader_strdup(const char *s) +{ + size_t len = (s) ? strlen(s) : 0; + char *t = MALLOC(len + 1); + if (t) { + memcpy(t, s, len); + t[len] = '\0'; + } + return t; +} + static EGLBoolean dlopen_st_module_cb(const char *dir, size_t len, void *callback_data) { @@ -81,7 +98,7 @@ load_st_module(struct st_module *stmod, { struct st_api *(*create_api)(void); - stmod->name = name; + stmod->name = loader_strdup(name); if (stmod->name) _eglSearchPathForEach(dlopen_st_module_cb, (void *) stmod); else @@ -99,12 +116,77 @@ load_st_module(struct st_module *stmod, } } - if (!stmod->stapi) + if (!stmod->stapi) { + FREE(stmod->name); stmod->name = NULL; + } return (stmod->stapi != NULL); } +static EGLBoolean +dlopen_pipe_module_cb(const char *dir, size_t len, void *callback_data) +{ + struct pipe_module *pmod = (struct pipe_module *) callback_data; + char path[1024]; + int ret; + + if (len) { + ret = util_snprintf(path, sizeof(path), + "%.*s/" PIPE_PREFIX "%s" UTIL_DL_EXT, len, dir, pmod->name); + } + else { + ret = util_snprintf(path, sizeof(path), + PIPE_PREFIX "%s" UTIL_DL_EXT, pmod->name); + } + if (ret > 0 && ret < sizeof(path)) { + pmod->lib = util_dl_open(path); + if (pmod->lib) + _eglLog(_EGL_DEBUG, "loaded %s", path); + } + + return !(pmod->lib); +} + +static boolean +load_pipe_module(struct pipe_module *pmod, const char *name) +{ + pmod->name = loader_strdup(name); + if (!pmod->name) + return FALSE; + + _eglSearchPathForEach(dlopen_pipe_module_cb, (void *) pmod); + if (pmod->lib) { + pmod->drmdd = (const struct drm_driver_descriptor *) + util_dl_get_proc_address(pmod->lib, "driver_descriptor"); + if (pmod->drmdd) { + if (pmod->drmdd->driver_name) { + /* driver name mismatch */ + if (strcmp(pmod->drmdd->driver_name, pmod->name) != 0) + pmod->drmdd = NULL; + } + else { + /* swrast */ + pmod->swrast_create_screen = + (struct pipe_screen *(*)(struct sw_winsys *)) + util_dl_get_proc_address(pmod->lib, "swrast_create_screen"); + if (!pmod->swrast_create_screen) + pmod->drmdd = NULL; + } + } + + if (!pmod->drmdd) { + util_dl_close(pmod->lib); + pmod->lib = NULL; + } + } + + if (!pmod->drmdd) + pmod->name = NULL; + + return (pmod->drmdd != NULL); +} + static struct st_api * get_st_api(enum st_api_type api) { @@ -206,27 +288,47 @@ guess_gl_api(void) return stapi; } +static struct pipe_module * +get_pipe_module(const char *name) +{ + struct pipe_module *pmod = NULL; + int i; + + if (!name) + return NULL; + + for (i = 0; i < Elements(pipe_modules); i++) { + if (!pipe_modules[i].initialized || + strcmp(pipe_modules[i].name, name) == 0) { + pmod = &pipe_modules[i]; + break; + } + } + if (!pmod) + return NULL; + + if (!pmod->initialized) { + load_pipe_module(pmod, name); + pmod->initialized = TRUE; + } + + return pmod; +} + static struct pipe_screen * create_drm_screen(const char *name, int fd) { - return (driver_descriptor.driver_name && name && - strcmp(driver_descriptor.driver_name, name) == 0) ? - driver_descriptor.create_screen(fd) : NULL; + struct pipe_module *pmod = get_pipe_module(name); + return (pmod && pmod->drmdd->create_screen) ? + pmod->drmdd->create_screen(fd) : NULL; } static struct pipe_screen * create_sw_screen(struct sw_winsys *ws) { - struct pipe_screen *screen = NULL; - -#if defined(GALLIUM_LLVMPIPE) - if (!screen && !debug_get_bool_option("GALLIUM_NO_LLVM", FALSE)) - screen = llvmpipe_create_screen(ws); -#endif - if (!screen) - screen = softpipe_create_screen(ws); - - return (screen) ? gallium_wrap_screen(screen) : NULL; + struct pipe_module *pmod = get_pipe_module("swrast"); + return (pmod && pmod->swrast_create_screen) ? + pmod->swrast_create_screen(ws) : NULL; } static const struct egl_g3d_loader * @@ -273,9 +375,30 @@ loader_fini(void) util_dl_close(stmod->lib); stmod->lib = NULL; } - stmod->name = NULL; + if (stmod->name) { + FREE(stmod->name); + stmod->name = NULL; + } stmod->initialized = FALSE; } + for (i = 0; i < Elements(pipe_modules); i++) { + struct pipe_module *pmod = &pipe_modules[i]; + + if (!pmod->initialized) + break; + + pmod->drmdd = NULL; + pmod->swrast_create_screen = NULL; + if (pmod->lib) { + util_dl_close(pmod->lib); + pmod->lib = NULL; + } + if (pmod->name) { + FREE(pmod->name); + pmod->name = NULL; + } + pmod->initialized = FALSE; + } } static void -- cgit v1.2.3