+++ /dev/null
-#include "evas_engine.h"
-#include <dlfcn.h>
-
-#ifdef HAVE_DRM_HW_ACCEL
-# define EGL_EGLEXT_PROTOTYPES
-# define GL_GLEXT_PROTOTYPES
-
-# include <GLES2/gl2.h>
-# include <GLES2/gl2ext.h>
-# include <EGL/egl.h>
-# include <EGL/eglext.h>
-#endif
-
-/* NB: This union is the same in GBM and TBM so we can use it
- * to return 'handles' */
-union _ebi_bo_handle
-{
- void *ptr;
- int32_t s32;
- uint32_t u32;
- int64_t s64;
- uint64_t u64;
-};
-
-enum _ebi_bo_format
-{
- EBI_BO_FORMAT_XRGB8888,
- EBI_BO_FORMAT_ARGB8888
-};
-
-enum _ebi_bo_gbm_flags
-{
- EBI_BO_GBM_SCANOUT = (1 << 0),
- EBI_BO_GBM_CURSOR = (1 << 1),
- EBI_BO_GBM_RENDER = (1 << 2),
- EBI_BO_GBM_WRITE = (1 << 3),
-};
-
-enum _ebi_bo_tbm_flags
-{
- EBI_BO_TBM_DEFAULT = 0,
- EBI_BO_TBM_SCANOUT = (1 << 0),
- EBI_BO_TBM_NONCACHE = (1 << 1),
- EBI_BO_TBM_WC = (1 << 2),
- EBI_BO_TBM_VENDOR = (0xffff0000),
-};
-
-typedef struct _Evas_Bufmgr_Interface Evas_Bufmgr_Interface;
-struct _Evas_Bufmgr_Interface
-{
- int fd;
-
- /* actual library we linked to */
- void *lib;
-
- /* actual buffer manager returned from library init */
- void *mgr;
-
- union
- {
- struct
- {
- void *(*init)(int fd);
- void (*shutdown)(void *mgr);
- void *(*surface_create)(void *mgr, unsigned int width, unsigned int height, unsigned int format, unsigned int flags);
- void (*surface_destroy)(void *surface);
- void *(*buffer_create)(void *mgr, unsigned int width, unsigned int height, unsigned int format, unsigned int flags);
- void (*buffer_destroy)(void *buffer);
- union _ebi_bo_handle (*buffer_handle_get)(void *buffer);
- unsigned int (*buffer_stride_get)(void *buffer);
- } gbm;
- struct
- {
- void *(*init)(int fd);
- void (*shutdown)(void *mgr);
- } tbm;
- } funcs;
-
-#ifdef HAVE_DRM_HW_ACCEL
- struct
- {
- EGLDisplay disp;
- EGLContext ctx;
- EGLConfig cfg;
-
- PFNEGLCREATEIMAGEKHRPROC image_create;
- PFNEGLDESTROYIMAGEKHRPROC image_destroy;
- PFNGLEGLIMAGETARGETTEXTURE2DOESPROC image_texture;
- } egl;
-#endif
-};
-
-/* buffer manager interface */
-static Evas_Bufmgr_Interface *_ebi;
-
-static Eina_Bool
-_evas_bufmgr_egl_init(void)
-{
-#ifdef HAVE_DRM_HW_ACCEL
- /* const char *ext; */
- EGLint maj, min, n;
- EGLint atts[] =
- {
- EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
- EGL_RED_SIZE, 1, EGL_GREEN_SIZE, 1, EGL_BLUE_SIZE, 1,
- EGL_ALPHA_SIZE, 1, EGL_DEPTH_SIZE, 1,
- EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, EGL_NONE
- };
-
- /* try to get the egl display from the manager */
- _ebi->egl.disp = eglGetDisplay(_ebi->mgr);
- if (_ebi->egl.disp == EGL_NO_DISPLAY)
- {
- ERR("Could not get EGLDisplay: %m");
- return EINA_FALSE;
- }
-
- /* try to init egl library */
- if (!eglInitialize(_ebi->egl.disp, &maj, &min))
- {
- ERR("Could not init EGL library: %m");
- goto init_err;
- }
-
- /* check egl extensions for what we need */
- /* ext = eglQueryString(_ebi->egl.disp, EGL_EXTENSIONS); */
- /* if (!strstr(ext, "EGL_KHR_surfaceless_opengl")) */
- /* { */
- /* ERR("EGL_KHR_surfaceless_opengl Not Supported"); */
- /* goto init_err; */
- /* } */
-
- eglBindAPI(EGL_OPENGL_ES_API);
-
- /* try to find matching egl config */
- if (!eglChooseConfig(_ebi->egl.disp, atts, &_ebi->egl.cfg, 1, &n) ||
- (n != 1))
- {
- ERR("Could not find EGLConfig: %m");
- goto init_err;
- }
-
- /* try to create a context */
- if (!(_ebi->egl.ctx =
- eglCreateContext(_ebi->egl.disp, _ebi->egl.cfg, EGL_NO_CONTEXT, NULL)))
- {
- ERR("Could not create EGL Context: %m");
- goto init_err;
- }
-
- /* try to make this context current */
- if (!eglMakeCurrent(_ebi->egl.disp, EGL_NO_SURFACE, EGL_NO_SURFACE,
- _ebi->egl.ctx))
- {
- ERR("Could not make EGL Context current: %m");
- goto curr_err;
- }
-
- /* TODO: setup shaders ?? */
-
- /* link to egl functions */
- _ebi->egl.image_create = (PFNEGLCREATEIMAGEKHRPROC)
- eglGetProcAddress("eglCreateImageKHR");
- _ebi->egl.image_destroy = (PFNEGLDESTROYIMAGEKHRPROC)
- eglGetProcAddress("eglDestroyImageKHR");
- _ebi->egl.image_texture = (PFNGLEGLIMAGETARGETTEXTURE2DOESPROC)
- eglGetProcAddress("glEGLImageTargetTexture2DOES");
-
- return EINA_TRUE;
-
-curr_err:
- /* destroy the egl context */
- eglDestroyContext(_ebi->egl.disp, _ebi->egl.ctx);
-
-init_err:
- /* close egl display */
- eglTerminate(_ebi->egl.disp);
- eglReleaseThread();
-#endif
- return EINA_FALSE;
-}
-
-static void
-_evas_bufmgr_egl_shutdown(void)
-{
-#ifdef HAVE_DRM_HW_ACCEL
- if (_ebi->egl.disp)
- {
- eglMakeCurrent(_ebi->egl.disp,
- EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
- eglTerminate(_ebi->egl.disp);
- eglReleaseThread();
- }
-#endif
-}
-
-static Eina_Bool
-_evas_bufmgr_gbm_init(void)
-{
- int flags = 0;
-
- /* set dlopen flags */
- flags = (RTLD_LAZY | RTLD_GLOBAL);
-
- /* try to find gbm library */
- _ebi->lib = dlopen("libgbm.so", flags);
- if (!_ebi->lib) _ebi->lib = dlopen("libgbm.so.1", flags);
- if (!_ebi->lib) _ebi->lib = dlopen("libgbm.so.1.0.0", flags);
-
- /* fail if we did not find the library */
- if (!_ebi->lib) return EINA_FALSE;
-
- /* with the library found, lets symlink the functions we need */
- _ebi->funcs.gbm.init = dlsym(_ebi->lib, "gbm_create_device");
- _ebi->funcs.gbm.shutdown = dlsym(_ebi->lib, "gbm_device_destroy");
- _ebi->funcs.gbm.surface_create = dlsym(_ebi->lib, "gbm_surface_create");
- _ebi->funcs.gbm.surface_destroy = dlsym(_ebi->lib, "gbm_surface_destroy");
- _ebi->funcs.gbm.buffer_create = dlsym(_ebi->lib, "gbm_bo_create");
- _ebi->funcs.gbm.buffer_destroy = dlsym(_ebi->lib, "gbm_bo_destroy");
- _ebi->funcs.gbm.buffer_handle_get = dlsym(_ebi->lib, "gbm_bo_get_handle");
- _ebi->funcs.gbm.buffer_stride_get = dlsym(_ebi->lib, "gbm_bo_get_stride");
-
- return EINA_TRUE;
-}
-
-static Eina_Bool
-_evas_bufmgr_tbm_init(void)
-{
- int flags = 0;
-
- /* set dlopen flags */
- flags = (RTLD_LAZY | RTLD_GLOBAL);
-
- /* try to find gbm library */
- _ebi->lib = dlopen("libtbm.so", flags);
- if (!_ebi->lib) _ebi->lib = dlopen("libtbm.so.1", flags);
- if (!_ebi->lib) _ebi->lib = dlopen("libtbm.so.1.0.0", flags);
-
- /* fail if we did not find the library */
- if (!_ebi->lib) return EINA_FALSE;
-
- /* with the library found, lets symlink the functions we need */
- /* TODO */
-
- return EINA_TRUE;
-}
-
-Eina_Bool
-evas_bufmgr_init(int fd)
-{
- /* if we already have an interface, then we have been here before */
- if (_ebi) return EINA_TRUE;
-
- /* try to allocate space for interface */
- if (!(_ebi = calloc(1, sizeof(Evas_Bufmgr_Interface)))) return EINA_FALSE;
-
- /* save drm card fd for later use */
- _ebi->fd = fd;
-
- /* try to find and link gbm library first */
- if (!_evas_bufmgr_gbm_init())
- {
- /* try to find and link tbm library */
- if (!_evas_bufmgr_tbm_init())
- {
- ERR("Could not init buffer library");
- goto err;
- }
- }
-
- /* with the library open and functions linked, lets try to init */
- if (_ebi->funcs.gbm.init)
- _ebi->mgr = _ebi->funcs.gbm.init(fd);
- else if (_ebi->funcs.tbm.init)
- _ebi->mgr = _ebi->funcs.tbm.init(fd);
-
- if (!_ebi->mgr)
- {
- ERR("Could not init buffer manager");
- goto init_err;
- }
-
- /* with the manager initialized, we need to init egl */
- if (!_evas_bufmgr_egl_init())
- WRN("Could not init egl");
-
- return EINA_TRUE;
-
-/* egl_err: */
-/* if (_ebi->mgr) */
-/* { */
-/* if (_ebi->funcs.gbm.shutdown) _ebi->funcs.gbm.shutdown(_ebi->mgr); */
-/* else if (_ebi->funcs.tbm.shutdown) _ebi->funcs.tbm.shutdown(_ebi->mgr); */
-/* _ebi->mgr = NULL; */
-/* } */
-
-init_err:
- /* close library */
- if (_ebi->lib) dlclose(_ebi->lib);
- _ebi->lib = NULL;
-err:
- /* free allocated space */
- free(_ebi);
- _ebi = NULL;
-
- return EINA_FALSE;
-}
-
-void
-evas_bufmgr_shutdown(void)
-{
- /* check for valid interface */
- if (!_ebi) return;
-
- /* shutdown egl */
- _evas_bufmgr_egl_shutdown();
-
- /* shutdown manager */
- if (_ebi->mgr)
- {
- if (_ebi->funcs.gbm.shutdown) _ebi->funcs.gbm.shutdown(_ebi->mgr);
- else if (_ebi->funcs.tbm.shutdown) _ebi->funcs.tbm.shutdown(_ebi->mgr);
- _ebi->mgr = NULL;
- }
-
- /* close library */
- if (_ebi->lib) dlclose(_ebi->lib);
- _ebi->lib = NULL;
-
- /* free allocated space */
- free(_ebi);
- _ebi = NULL;
-}
-
-#ifdef HAVE_DRM_HW_ACCEL
-void *
-evas_bufmgr_window_create(void *surface)
-{
- void *win;
-
- /* check for valid interface */
- if ((!_ebi) || (_ebi->egl.disp == EGL_NO_DISPLAY)) return NULL;
-
- /* try to create the egl window surface */
- win = eglCreateWindowSurface(_ebi->egl.disp, _ebi->egl.cfg,
- (EGLNativeWindowType)surface, NULL);
- if (win == EGL_NO_SURFACE)
- {
- ERR("Failed to create egl window surface: %m");
- return NULL;
- }
-
- /* try to make this window surface current */
- if (!eglMakeCurrent(_ebi->egl.disp, win, win, _ebi->egl.ctx))
- ERR("Could not make window surface current: %m");
-
- return win;
-}
-
-void
-evas_bufmgr_window_destroy(void *win)
-{
- /* check for valid interface */
- if ((!_ebi) || (_ebi->egl.disp == EGL_NO_DISPLAY)) return;
-
- /* destroy the egl window */
- if (win) eglDestroySurface(_ebi->egl.disp, win);
-}
-
-void *
-evas_bufmgr_surface_create(int w, int h, Eina_Bool alpha)
-{
- unsigned int format, flags;
-
- /* check for valid interface */
- if ((!_ebi) || (!_ebi->mgr)) return NULL;
-
- format = EBI_BO_FORMAT_XRGB8888;
- if (alpha) format = EBI_BO_FORMAT_ARGB8888;
-
- /* call function to create surface */
- if (_ebi->funcs.gbm.surface_create)
- {
- flags = (EBI_BO_GBM_SCANOUT | EBI_BO_GBM_RENDER);
- return _ebi->funcs.gbm.surface_create(_ebi->mgr, w, h, format, flags);
- }
-
- /* else if (_ebi->funcs.tbm.surface_create) */
- /* surface = _ebi->funcs.tbm.surface_create(); */
-
- return NULL;
-}
-
-void
-evas_bufmgr_surface_destroy(void *surface)
-{
- /* check for valid interface */
- if ((!_ebi) || (!_ebi->mgr)) return;
-
- /* check for valid surface */
- if (!surface) return;
-
- /* call destroy surface */
- if (_ebi->funcs.gbm.surface_destroy)
- _ebi->funcs.gbm.surface_destroy(surface);
-
- /* else if (_ebi->funcs.tbm.surface_destroy) */
- /* _ebi->funcs.tbm.surface_destroy(surface); */
-}
-
-void *
-evas_bufmgr_buffer_create(int w, int h, Eina_Bool alpha)
-{
- unsigned int format, flags;
-
- /* check for valid interface */
- if ((!_ebi) || (!_ebi->mgr)) return NULL;
-
- format = EBI_BO_FORMAT_XRGB8888;
- if (alpha) format = EBI_BO_FORMAT_ARGB8888;
-
- /* call function to create surface */
- if (_ebi->funcs.gbm.buffer_create)
- {
- flags = (EBI_BO_GBM_SCANOUT | EBI_BO_GBM_RENDER);
- return _ebi->funcs.gbm.buffer_create(_ebi->mgr, w, h, format, flags);
- }
-
- /* else if (_ebi->funcs.tbm.buffer_create) */
- /* surface = _ebi->funcs.tbm.buffer_create(); */
-
- return NULL;
-}
-
-void
-evas_bufmgr_buffer_destroy(void *buffer)
-{
- /* check for valid interface */
- if ((!_ebi) || (!_ebi->mgr)) return;
-
- /* check for valid buffer */
- if (!buffer) return;
-
- /* call function to destroy buffer */
- if (_ebi->funcs.gbm.buffer_destroy)
- _ebi->funcs.gbm.buffer_destroy(buffer);
-
- /* else if (_ebi->funcs.tbm.buffer_destroy) */
- /* _ebi->funcs.tbm.buffer_destroy(buffer); */
-}
-
-int
-evas_bufmgr_buffer_handle_get(void *buffer)
-{
- /* check for valid interface */
- if ((!_ebi) || (!_ebi->mgr)) return 0;
-
- /* check for valid buffer */
- if (!buffer) return 0;
-
- /* call function to get buffer handle */
- if (_ebi->funcs.gbm.buffer_handle_get)
- return _ebi->funcs.gbm.buffer_handle_get(buffer).u32;
-
- return 0;
-}
-
-int
-evas_bufmgr_buffer_stride_get(void *buffer)
-{
- /* check for valid interface */
- if ((!_ebi) || (!_ebi->mgr)) return 0;
-
- /* check for valid buffer */
- if (!buffer) return 0;
-
- /* call function to get buffer stride */
- if (_ebi->funcs.gbm.buffer_stride_get)
- return _ebi->funcs.gbm.buffer_stride_get(buffer);
-
- /* else if (_ebi->funcs.tbm.buffer_stride_get) */
- /* return _ebi->funcs.tbm.buffer_stride_get(buffer); */
-
- return 0;
-}
-
-void *
-evas_bufmgr_image_create(void *buffer)
-{
- /* check for valid interface */
- if ((!_ebi) || (_ebi->egl.disp == EGL_NO_DISPLAY)) return NULL;
-
- /* check for valid buffer */
- if (!buffer) return NULL;
-
- /* try to create an egl image from this buffer */
- if (_ebi->egl.image_create)
- return _ebi->egl.image_create(_ebi->egl.disp, EGL_NO_CONTEXT,
- EGL_NATIVE_PIXMAP_KHR, buffer, NULL);
-
- return NULL;
-}
-
-void
-evas_bufmgr_image_destroy(void *image)
-{
- /* check for valid interface */
- if ((!_ebi) || (_ebi->egl.disp == EGL_NO_DISPLAY)) return;
-
- /* check for valid image */
- if (!image) return;
-
- /* destroy egl image */
- if (_ebi->egl.image_destroy)
- _ebi->egl.image_destroy(_ebi->egl.disp, image);
-}
-
-unsigned int
-evas_bufmgr_texture_create(void *image)
-{
- GLuint tex;
-
- /* check for valid interface */
- if ((!_ebi) || (_ebi->egl.disp == EGL_NO_DISPLAY)) return 0;
-
- /* check for valid image */
- if (!image) return 0;
-
- glGenTextures(1, &tex);
- glBindTexture(GL_TEXTURE_2D, tex);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- if (_ebi->egl.image_texture) _ebi->egl.image_texture(GL_TEXTURE_2D, image);
- glBindTexture(GL_TEXTURE_2D, 0);
-
- return tex;
-}
-#endif