| /* |
| * Mesa 3-D graphics library |
| * Version: 7.8 |
| * |
| * Copyright (C) 2009-2010 Chia-I Wu <olv@0xlab.org> |
| * |
| * 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. |
| */ |
| |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <xf86drm.h> |
| #include <X11/Xlibint.h> |
| #include <X11/extensions/XShm.h> |
| |
| #include "util/u_memory.h" |
| #include "egllog.h" |
| |
| #include "x11_screen.h" |
| #include "dri2.h" |
| #include "glxinit.h" |
| |
| struct x11_screen { |
| Display *dpy; |
| int number; |
| |
| /* |
| * This is used to fetch GLX visuals/fbconfigs. It steals code from GLX. |
| * It might be better to rewrite the part in Xlib or XCB. |
| */ |
| __GLXdisplayPrivate *glx_dpy; |
| |
| int dri_major, dri_minor; |
| char *dri_driver; |
| char *dri_device; |
| int dri_fd; |
| |
| x11_drawable_invalidate_buffers dri_invalidate_buffers; |
| void *dri_user_data; |
| |
| XVisualInfo *visuals; |
| int num_visuals; |
| |
| /* cached values for x11_drawable_get_depth */ |
| Drawable last_drawable; |
| unsigned int last_depth; |
| }; |
| |
| |
| /** |
| * Create a X11 screen. |
| */ |
| struct x11_screen * |
| x11_screen_create(Display *dpy, int screen) |
| { |
| struct x11_screen *xscr; |
| |
| if (screen >= ScreenCount(dpy)) |
| return NULL; |
| |
| xscr = CALLOC_STRUCT(x11_screen); |
| if (xscr) { |
| xscr->dpy = dpy; |
| xscr->number = screen; |
| |
| xscr->dri_major = -1; |
| xscr->dri_fd = -1; |
| } |
| return xscr; |
| } |
| |
| /** |
| * Destroy a X11 screen. |
| */ |
| void |
| x11_screen_destroy(struct x11_screen *xscr) |
| { |
| if (xscr->dri_fd >= 0) |
| close(xscr->dri_fd); |
| if (xscr->dri_driver) |
| Xfree(xscr->dri_driver); |
| if (xscr->dri_device) |
| Xfree(xscr->dri_device); |
| |
| #ifdef GLX_DIRECT_RENDERING |
| /* xscr->glx_dpy will be destroyed with the X display */ |
| if (xscr->glx_dpy) |
| xscr->glx_dpy->xscr = NULL; |
| #endif |
| |
| if (xscr->visuals) |
| XFree(xscr->visuals); |
| FREE(xscr); |
| } |
| |
| #ifdef GLX_DIRECT_RENDERING |
| |
| static boolean |
| x11_screen_init_dri2(struct x11_screen *xscr) |
| { |
| if (xscr->dri_major < 0) { |
| int eventBase, errorBase; |
| |
| if (!DRI2QueryExtension(xscr->dpy, &eventBase, &errorBase) || |
| !DRI2QueryVersion(xscr->dpy, &xscr->dri_major, &xscr->dri_minor)) |
| xscr->dri_major = -1; |
| } |
| return (xscr->dri_major >= 0); |
| } |
| |
| static boolean |
| x11_screen_init_glx(struct x11_screen *xscr) |
| { |
| if (!xscr->glx_dpy) |
| xscr->glx_dpy = __glXInitialize(xscr->dpy); |
| return (xscr->glx_dpy != NULL); |
| } |
| |
| #endif /* GLX_DIRECT_RENDERING */ |
| |
| /** |
| * Return true if the screen supports the extension. |
| */ |
| boolean |
| x11_screen_support(struct x11_screen *xscr, enum x11_screen_extension ext) |
| { |
| boolean supported = FALSE; |
| |
| switch (ext) { |
| case X11_SCREEN_EXTENSION_XSHM: |
| supported = XShmQueryExtension(xscr->dpy); |
| break; |
| #ifdef GLX_DIRECT_RENDERING |
| case X11_SCREEN_EXTENSION_GLX: |
| supported = x11_screen_init_glx(xscr); |
| break; |
| case X11_SCREEN_EXTENSION_DRI2: |
| supported = x11_screen_init_dri2(xscr); |
| break; |
| #endif |
| default: |
| break; |
| } |
| |
| return supported; |
| } |
| |
| /** |
| * Return the X visuals. |
| */ |
| const XVisualInfo * |
| x11_screen_get_visuals(struct x11_screen *xscr, int *num_visuals) |
| { |
| if (!xscr->visuals) { |
| XVisualInfo vinfo_template; |
| vinfo_template.screen = xscr->number; |
| xscr->visuals = XGetVisualInfo(xscr->dpy, VisualScreenMask, |
| &vinfo_template, &xscr->num_visuals); |
| } |
| |
| if (num_visuals) |
| *num_visuals = xscr->num_visuals; |
| return xscr->visuals; |
| } |
| |
| /** |
| * Return the depth of a drawable. |
| * |
| * Unlike other drawable functions, the drawable needs not be a DRI2 drawable. |
| */ |
| uint |
| x11_drawable_get_depth(struct x11_screen *xscr, Drawable drawable) |
| { |
| unsigned int depth; |
| |
| if (drawable != xscr->last_drawable) { |
| Window root; |
| int x, y; |
| unsigned int w, h, border; |
| Status ok; |
| |
| ok = XGetGeometry(xscr->dpy, drawable, &root, |
| &x, &y, &w, &h, &border, &depth); |
| if (!ok) |
| depth = 0; |
| |
| xscr->last_drawable = drawable; |
| xscr->last_depth = depth; |
| } |
| else { |
| depth = xscr->last_depth; |
| } |
| |
| return depth; |
| } |
| |
| #ifdef GLX_DIRECT_RENDERING |
| |
| /** |
| * Return the GLX fbconfigs. |
| */ |
| const __GLcontextModes * |
| x11_screen_get_glx_configs(struct x11_screen *xscr) |
| { |
| return (x11_screen_init_glx(xscr)) |
| ? xscr->glx_dpy->screenConfigs[xscr->number]->configs |
| : NULL; |
| } |
| |
| /** |
| * Probe the screen for the DRI2 driver name. |
| */ |
| const char * |
| x11_screen_probe_dri2(struct x11_screen *xscr, int *major, int *minor) |
| { |
| if (!x11_screen_init_dri2(xscr)) |
| return NULL; |
| |
| /* get the driver name and the device name */ |
| if (!xscr->dri_driver) { |
| if (!DRI2Connect(xscr->dpy, RootWindow(xscr->dpy, xscr->number), |
| &xscr->dri_driver, &xscr->dri_device)) |
| xscr->dri_driver = xscr->dri_device = NULL; |
| } |
| if (major) |
| *major = xscr->dri_major; |
| if (minor) |
| *minor = xscr->dri_minor; |
| |
| return xscr->dri_driver; |
| } |
| |
| /** |
| * Enable DRI2 and returns the file descriptor of the DRM device. The file |
| * descriptor will be closed automatically when the screen is destoryed. |
| */ |
| int |
| x11_screen_enable_dri2(struct x11_screen *xscr, |
| x11_drawable_invalidate_buffers invalidate_buffers, |
| void *user_data) |
| { |
| if (xscr->dri_fd < 0) { |
| int fd; |
| drm_magic_t magic; |
| |
| /* get the driver name and the device name first */ |
| if (!x11_screen_probe_dri2(xscr, NULL, NULL)) |
| return -1; |
| |
| #ifdef O_CLOEXEC |
| fd = open(xscr->dri_device, O_RDWR | O_CLOEXEC); |
| if (fd == -1 && errno == EINVAL) |
| #endif |
| { |
| fd = open(xscr->dri_device, O_RDWR); |
| if (fd != -1) |
| fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); |
| } |
| if (fd < 0) { |
| _eglLog(_EGL_WARNING, "failed to open %s", xscr->dri_device); |
| return -1; |
| } |
| |
| memset(&magic, 0, sizeof(magic)); |
| if (drmGetMagic(fd, &magic)) { |
| _eglLog(_EGL_WARNING, "failed to get magic"); |
| close(fd); |
| return -1; |
| } |
| |
| if (!DRI2Authenticate(xscr->dpy, |
| RootWindow(xscr->dpy, xscr->number), magic)) { |
| _eglLog(_EGL_WARNING, "failed to authenticate magic"); |
| close(fd); |
| return -1; |
| } |
| |
| if (!x11_screen_init_glx(xscr)) { |
| _eglLog(_EGL_WARNING, "failed to initialize GLX"); |
| close(fd); |
| return -1; |
| } |
| if (xscr->glx_dpy->xscr) { |
| _eglLog(_EGL_WARNING, |
| "display is already managed by another x11 screen"); |
| close(fd); |
| return -1; |
| } |
| |
| xscr->glx_dpy->xscr = xscr; |
| xscr->dri_invalidate_buffers = invalidate_buffers; |
| xscr->dri_user_data = user_data; |
| |
| xscr->dri_fd = fd; |
| } |
| |
| return xscr->dri_fd; |
| } |
| |
| char * |
| x11_screen_get_device_name(struct x11_screen *xscr) |
| { |
| return xscr->dri_device; |
| } |
| |
| int |
| x11_screen_authenticate(struct x11_screen *xscr, uint32_t id) |
| { |
| boolean authenticated; |
| |
| authenticated = DRI2Authenticate(xscr->dpy, |
| RootWindow(xscr->dpy, xscr->number), id); |
| |
| return authenticated ? 0 : -1; |
| } |
| |
| /** |
| * Create/Destroy the DRI drawable. |
| */ |
| void |
| x11_drawable_enable_dri2(struct x11_screen *xscr, |
| Drawable drawable, boolean on) |
| { |
| if (on) |
| DRI2CreateDrawable(xscr->dpy, drawable); |
| else |
| DRI2DestroyDrawable(xscr->dpy, drawable); |
| } |
| |
| /** |
| * Copy between buffers of the DRI2 drawable. |
| */ |
| void |
| x11_drawable_copy_buffers_region(struct x11_screen *xscr, Drawable drawable, |
| int num_rects, const int *rects, |
| int src_buf, int dst_buf) |
| { |
| XserverRegion region; |
| XRectangle *rectangles = CALLOC(num_rects, sizeof(XRectangle)); |
| |
| for (int i = 0; i < num_rects; i++) { |
| rectangles[i].x = rects[i * 4 + 0]; |
| rectangles[i].y = rects[i * 4 + 1]; |
| rectangles[i].width = rects[i * 4 + 2]; |
| rectangles[i].height = rects[i * 4 + 3]; |
| } |
| |
| region = XFixesCreateRegion(xscr->dpy, rectangles, num_rects); |
| DRI2CopyRegion(xscr->dpy, drawable, region, dst_buf, src_buf); |
| XFixesDestroyRegion(xscr->dpy, region); |
| FREE(rectangles); |
| } |
| |
| /** |
| * Get the buffers of the DRI2 drawable. The returned array should be freed. |
| */ |
| struct x11_drawable_buffer * |
| x11_drawable_get_buffers(struct x11_screen *xscr, Drawable drawable, |
| int *width, int *height, unsigned int *attachments, |
| boolean with_format, int num_ins, int *num_outs) |
| { |
| DRI2Buffer *dri2bufs; |
| |
| if (with_format) |
| dri2bufs = DRI2GetBuffersWithFormat(xscr->dpy, drawable, width, height, |
| attachments, num_ins, num_outs); |
| else |
| dri2bufs = DRI2GetBuffers(xscr->dpy, drawable, width, height, |
| attachments, num_ins, num_outs); |
| |
| return (struct x11_drawable_buffer *) dri2bufs; |
| } |
| |
| /** |
| * Create a mode list of the given size. |
| */ |
| __GLcontextModes * |
| x11_context_modes_create(unsigned count) |
| { |
| const size_t size = sizeof(__GLcontextModes); |
| __GLcontextModes *base = NULL; |
| __GLcontextModes **next; |
| unsigned i; |
| |
| next = &base; |
| for (i = 0; i < count; i++) { |
| *next = (__GLcontextModes *) CALLOC(1, size); |
| if (*next == NULL) { |
| x11_context_modes_destroy(base); |
| base = NULL; |
| break; |
| } |
| next = &((*next)->next); |
| } |
| |
| return base; |
| } |
| |
| /** |
| * Destroy a mode list. |
| */ |
| void |
| x11_context_modes_destroy(__GLcontextModes *modes) |
| { |
| while (modes != NULL) { |
| __GLcontextModes *next = modes->next; |
| FREE(modes); |
| modes = next; |
| } |
| } |
| |
| /** |
| * Return the number of the modes in the mode list. |
| */ |
| unsigned |
| x11_context_modes_count(const __GLcontextModes *modes) |
| { |
| const __GLcontextModes *mode; |
| int count = 0; |
| for (mode = modes; mode; mode = mode->next) |
| count++; |
| return count; |
| } |
| |
| extern void |
| dri2InvalidateBuffers(Display *dpy, XID drawable); |
| |
| /** |
| * This is called from src/glx/dri2.c. |
| */ |
| void |
| dri2InvalidateBuffers(Display *dpy, XID drawable) |
| { |
| __GLXdisplayPrivate *priv = __glXInitialize(dpy); |
| struct x11_screen *xscr = NULL; |
| |
| if (priv && priv->xscr) |
| xscr = priv->xscr; |
| if (!xscr || !xscr->dri_invalidate_buffers) |
| return; |
| |
| xscr->dri_invalidate_buffers(xscr, drawable, xscr->dri_user_data); |
| } |
| |
| extern unsigned |
| dri2GetSwapEventType(Display *dpy, XID drawable); |
| |
| extern void * |
| dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id); |
| |
| extern void * |
| GetGLXDrawable(Display *dpy, XID drawable); |
| |
| /** |
| * This is also called from src/glx/dri2.c. |
| */ |
| unsigned dri2GetSwapEventType(Display *dpy, XID drawable) |
| { |
| return 0; |
| } |
| |
| void * |
| dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id) |
| { |
| return NULL; |
| } |
| |
| void * |
| GetGLXDrawable(Display *dpy, XID drawable) |
| { |
| return NULL; |
| } |
| |
| #endif /* GLX_DIRECT_RENDERING */ |