/* * Copyright © 2011 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 (including the next * paragraph) 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. * * Authors: * Kristian Høgsberg */ #include #include #include #include #include #include #include #include #ifdef HAVE_LIBDRM #include #endif #include #include #include "egl_dri2.h" static void swrastCreateDrawable(struct dri2_egl_display * dri2_dpy, struct dri2_egl_surface * dri2_surf, int depth) { uint32_t mask; const uint32_t function = GXcopy; uint32_t valgc[2]; /* create GC's */ dri2_surf->gc = xcb_generate_id(dri2_dpy->conn); mask = XCB_GC_FUNCTION; xcb_create_gc(dri2_dpy->conn, dri2_surf->gc, dri2_surf->drawable, mask, &function); dri2_surf->swapgc = xcb_generate_id(dri2_dpy->conn); mask = XCB_GC_FUNCTION | XCB_GC_GRAPHICS_EXPOSURES; valgc[0] = function; valgc[1] = False; xcb_create_gc(dri2_dpy->conn, dri2_surf->swapgc, dri2_surf->drawable, mask, valgc); dri2_surf->depth = depth; switch (depth) { case 32: case 24: dri2_surf->bytes_per_pixel = 4; break; case 16: dri2_surf->bytes_per_pixel = 2; break; case 8: dri2_surf->bytes_per_pixel = 1; break; case 0: dri2_surf->bytes_per_pixel = 0; break; default: _eglLog(_EGL_WARNING, "unsupported depth %d", depth); } } static void swrastDestroyDrawable(struct dri2_egl_display * dri2_dpy, struct dri2_egl_surface * dri2_surf) { xcb_free_gc(dri2_dpy->conn, dri2_surf->gc); xcb_free_gc(dri2_dpy->conn, dri2_surf->swapgc); } static void swrastGetDrawableInfo(__DRIdrawable * draw, int *x, int *y, int *w, int *h, void *loaderPrivate) { struct dri2_egl_surface *dri2_surf = loaderPrivate; struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display); xcb_get_geometry_cookie_t cookie; xcb_get_geometry_reply_t *reply; xcb_generic_error_t *error; *w = *h = 0; cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable); reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error); if (reply == NULL) return; if (error != NULL) { _eglLog(_EGL_WARNING, "error in xcb_get_geometry"); free(error); } else { *w = reply->width; *h = reply->height; } free(reply); } static void swrastPutImage(__DRIdrawable * draw, int op, int x, int y, int w, int h, char *data, void *loaderPrivate) { struct dri2_egl_surface *dri2_surf = loaderPrivate; struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display); xcb_gcontext_t gc; switch (op) { case __DRI_SWRAST_IMAGE_OP_DRAW: gc = dri2_surf->gc; break; case __DRI_SWRAST_IMAGE_OP_SWAP: gc = dri2_surf->swapgc; break; default: return; } xcb_put_image(dri2_dpy->conn, XCB_IMAGE_FORMAT_Z_PIXMAP, dri2_surf->drawable, gc, w, h, x, y, 0, dri2_surf->depth, w*h*dri2_surf->bytes_per_pixel, (const uint8_t *)data); } static void swrastGetImage(__DRIdrawable * read, int x, int y, int w, int h, char *data, void *loaderPrivate) { struct dri2_egl_surface *dri2_surf = loaderPrivate; struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display); xcb_get_image_cookie_t cookie; xcb_get_image_reply_t *reply; xcb_generic_error_t *error; cookie = xcb_get_image (dri2_dpy->conn, XCB_IMAGE_FORMAT_Z_PIXMAP, dri2_surf->drawable, x, y, w, h, ~0); reply = xcb_get_image_reply (dri2_dpy->conn, cookie, &error); if (reply == NULL) return; if (error != NULL) { _eglLog(_EGL_WARNING, "error in xcb_get_image"); free(error); } else { uint32_t bytes = xcb_get_image_data_length(reply); uint8_t *idata = xcb_get_image_data(reply); memcpy(data, idata, bytes); } free(reply); } /** * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface(). */ static _EGLSurface * dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type, _EGLConfig *conf, EGLNativeWindowType native_window, const EGLint *attrib_list) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_config *dri2_conf = dri2_egl_config(conf); struct dri2_egl_surface *dri2_surf; xcb_get_geometry_cookie_t cookie; xcb_get_geometry_reply_t *reply; xcb_screen_iterator_t s; xcb_generic_error_t *error; xcb_drawable_t window = (uintptr_t )native_window; (void) drv; dri2_surf = malloc(sizeof *dri2_surf); if (!dri2_surf) { _eglError(EGL_BAD_ALLOC, "dri2_create_surface"); return NULL; } if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list)) goto cleanup_surf; dri2_surf->region = XCB_NONE; if (type == EGL_PBUFFER_BIT) { dri2_surf->drawable = xcb_generate_id(dri2_dpy->conn); s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); xcb_create_pixmap(dri2_dpy->conn, conf->BufferSize, dri2_surf->drawable, s.data->root, dri2_surf->base.Width, dri2_surf->base.Height); } else { dri2_surf->drawable = window; } if (dri2_dpy->dri2) { dri2_surf->dri_drawable = (*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen, type == EGL_WINDOW_BIT ? dri2_conf->dri_double_config : dri2_conf->dri_single_config, dri2_surf); } else { assert(dri2_dpy->swrast); dri2_surf->dri_drawable = (*dri2_dpy->swrast->createNewDrawable) (dri2_dpy->dri_screen, dri2_conf->dri_double_config, dri2_surf); } if (dri2_surf->dri_drawable == NULL) { _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable"); goto cleanup_pixmap; } if (dri2_dpy->dri2) { xcb_dri2_create_drawable (dri2_dpy->conn, dri2_surf->drawable); } else { swrastCreateDrawable(dri2_dpy, dri2_surf, _eglGetConfigKey(conf, EGL_BUFFER_SIZE)); } if (type != EGL_PBUFFER_BIT) { cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable); reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error); if (reply == NULL || error != NULL) { _eglError(EGL_BAD_ALLOC, "xcb_get_geometry"); free(error); goto cleanup_dri_drawable; } dri2_surf->base.Width = reply->width; dri2_surf->base.Height = reply->height; free(reply); } /* we always copy the back buffer to front */ dri2_surf->base.PostSubBufferSupportedNV = EGL_TRUE; return &dri2_surf->base; cleanup_dri_drawable: dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable); cleanup_pixmap: if (type == EGL_PBUFFER_BIT) xcb_free_pixmap(dri2_dpy->conn, dri2_surf->drawable); cleanup_surf: free(dri2_surf); return NULL; } /** * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface(). */ static _EGLSurface * dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf, EGLNativeWindowType window, const EGLint *attrib_list) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); _EGLSurface *surf; surf = dri2_create_surface(drv, disp, EGL_WINDOW_BIT, conf, window, attrib_list); if (surf != NULL) { /* When we first create the DRI2 drawable, its swap interval on the * server side is 1. */ surf->SwapInterval = 1; /* Override that with a driconf-set value. */ drv->API.SwapInterval(drv, disp, surf, dri2_dpy->default_swap_interval); } return surf; } static _EGLSurface * dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf, EGLNativePixmapType pixmap, const EGLint *attrib_list) { return dri2_create_surface(drv, disp, EGL_PIXMAP_BIT, conf, pixmap, attrib_list); } static _EGLSurface * dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf, const EGLint *attrib_list) { return dri2_create_surface(drv, disp, EGL_PBUFFER_BIT, conf, XCB_WINDOW_NONE, attrib_list); } static EGLBoolean dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); (void) drv; if (!_eglPutSurface(surf)) return EGL_TRUE; (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable); if (dri2_dpy->dri2) { xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable); } else { assert(dri2_dpy->swrast); swrastDestroyDrawable(dri2_dpy, dri2_surf); } if (surf->Type == EGL_PBUFFER_BIT) xcb_free_pixmap (dri2_dpy->conn, dri2_surf->drawable); free(surf); return EGL_TRUE; } /** * Process list of buffer received from the server * * Processes the list of buffers received in a reply from the server to either * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat. */ static void dri2_process_buffers(struct dri2_egl_surface *dri2_surf, xcb_dri2_dri2_buffer_t *buffers, unsigned count) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display); xcb_rectangle_t rectangle; unsigned i; dri2_surf->buffer_count = count; dri2_surf->have_fake_front = 0; /* This assumes the DRI2 buffer attachment tokens matches the * __DRIbuffer tokens. */ for (i = 0; i < count; i++) { dri2_surf->buffers[i].attachment = buffers[i].attachment; dri2_surf->buffers[i].name = buffers[i].name; dri2_surf->buffers[i].pitch = buffers[i].pitch; dri2_surf->buffers[i].cpp = buffers[i].cpp; dri2_surf->buffers[i].flags = buffers[i].flags; /* We only use the DRI drivers single buffer configs. This * means that if we try to render to a window, DRI2 will give us * the fake front buffer, which we'll use as a back buffer. * Note that EGL doesn't require that several clients rendering * to the same window must see the same aux buffers. */ if (dri2_surf->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT) dri2_surf->have_fake_front = 1; } if (dri2_surf->region != XCB_NONE) xcb_xfixes_destroy_region(dri2_dpy->conn, dri2_surf->region); rectangle.x = 0; rectangle.y = 0; rectangle.width = dri2_surf->base.Width; rectangle.height = dri2_surf->base.Height; dri2_surf->region = xcb_generate_id(dri2_dpy->conn); xcb_xfixes_create_region(dri2_dpy->conn, dri2_surf->region, 1, &rectangle); } static __DRIbuffer * dri2_get_buffers(__DRIdrawable * driDrawable, int *width, int *height, unsigned int *attachments, int count, int *out_count, void *loaderPrivate) { struct dri2_egl_surface *dri2_surf = loaderPrivate; struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display); xcb_dri2_dri2_buffer_t *buffers; xcb_dri2_get_buffers_reply_t *reply; xcb_dri2_get_buffers_cookie_t cookie; (void) driDrawable; cookie = xcb_dri2_get_buffers_unchecked (dri2_dpy->conn, dri2_surf->drawable, count, count, attachments); reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, cookie, NULL); buffers = xcb_dri2_get_buffers_buffers (reply); if (buffers == NULL) return NULL; *out_count = reply->count; dri2_surf->base.Width = *width = reply->width; dri2_surf->base.Height = *height = reply->height; dri2_process_buffers(dri2_surf, buffers, *out_count); free(reply); return dri2_surf->buffers; } static __DRIbuffer * dri2_get_buffers_with_format(__DRIdrawable * driDrawable, int *width, int *height, unsigned int *attachments, int count, int *out_count, void *loaderPrivate) { struct dri2_egl_surface *dri2_surf = loaderPrivate; struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display); xcb_dri2_dri2_buffer_t *buffers; xcb_dri2_get_buffers_with_format_reply_t *reply; xcb_dri2_get_buffers_with_format_cookie_t cookie; xcb_dri2_attach_format_t *format_attachments; (void) driDrawable; format_attachments = (xcb_dri2_attach_format_t *) attachments; cookie = xcb_dri2_get_buffers_with_format_unchecked (dri2_dpy->conn, dri2_surf->drawable, count, count, format_attachments); reply = xcb_dri2_get_buffers_with_format_reply (dri2_dpy->conn, cookie, NULL); if (reply == NULL) return NULL; buffers = xcb_dri2_get_buffers_with_format_buffers (reply); dri2_surf->base.Width = *width = reply->width; dri2_surf->base.Height = *height = reply->height; *out_count = reply->count; dri2_process_buffers(dri2_surf, buffers, *out_count); free(reply); return dri2_surf->buffers; } static void dri2_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate) { (void) driDrawable; /* FIXME: Does EGL support front buffer rendering at all? */ #if 0 struct dri2_egl_surface *dri2_surf = loaderPrivate; dri2WaitGL(dri2_surf); #else (void) loaderPrivate; #endif } static char * dri2_strndup(const char *s, int length) { char *d; d = malloc(length + 1); if (d == NULL) return NULL; memcpy(d, s, length); d[length] = '\0'; return d; } static EGLBoolean dri2_connect(struct dri2_egl_display *dri2_dpy) { xcb_xfixes_query_version_reply_t *xfixes_query; xcb_xfixes_query_version_cookie_t xfixes_query_cookie; xcb_dri2_query_version_reply_t *dri2_query; xcb_dri2_query_version_cookie_t dri2_query_cookie; xcb_dri2_connect_reply_t *connect; xcb_dri2_connect_cookie_t connect_cookie; xcb_generic_error_t *error; xcb_screen_iterator_t s; char *driver_name, *device_name; const xcb_query_extension_reply_t *extension; xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id); xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id); extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_xfixes_id); if (!(extension && extension->present)) return EGL_FALSE; extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_dri2_id); if (!(extension && extension->present)) return EGL_FALSE; xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn, XCB_XFIXES_MAJOR_VERSION, XCB_XFIXES_MINOR_VERSION); dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn, XCB_DRI2_MAJOR_VERSION, XCB_DRI2_MINOR_VERSION); s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); connect_cookie = xcb_dri2_connect_unchecked (dri2_dpy->conn, s.data->root, XCB_DRI2_DRIVER_TYPE_DRI); xfixes_query = xcb_xfixes_query_version_reply (dri2_dpy->conn, xfixes_query_cookie, &error); if (xfixes_query == NULL || error != NULL || xfixes_query->major_version < 2) { _eglLog(_EGL_WARNING, "DRI2: failed to query xfixes version"); free(error); return EGL_FALSE; } free(xfixes_query); dri2_query = xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error); if (dri2_query == NULL || error != NULL) { _eglLog(_EGL_WARNING, "DRI2: failed to query version"); free(error); return EGL_FALSE; } dri2_dpy->dri2_major = dri2_query->major_version; dri2_dpy->dri2_minor = dri2_query->minor_version; free(dri2_query); connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL); if (connect == NULL || connect->driver_name_length + connect->device_name_length == 0) { _eglLog(_EGL_WARNING, "DRI2: failed to authenticate"); return EGL_FALSE; } driver_name = xcb_dri2_connect_driver_name (connect); dri2_dpy->driver_name = dri2_strndup(driver_name, xcb_dri2_connect_driver_name_length (connect)); device_name = xcb_dri2_connect_device_name (connect); dri2_dpy->device_name = dri2_strndup(device_name, xcb_dri2_connect_device_name_length (connect)); if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) { free(dri2_dpy->device_name); free(dri2_dpy->driver_name); free(connect); return EGL_FALSE; } free(connect); return EGL_TRUE; } static int dri2_x11_authenticate(_EGLDisplay *disp, uint32_t id) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); xcb_dri2_authenticate_reply_t *authenticate; xcb_dri2_authenticate_cookie_t authenticate_cookie; xcb_screen_iterator_t s; int ret = 0; s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); authenticate_cookie = xcb_dri2_authenticate_unchecked(dri2_dpy->conn, s.data->root, id); authenticate = xcb_dri2_authenticate_reply(dri2_dpy->conn, authenticate_cookie, NULL); if (authenticate == NULL || !authenticate->authenticated) ret = -1; free(authenticate); return ret; } static EGLBoolean dri2_authenticate(_EGLDisplay *disp) { #ifdef HAVE_LIBDRM struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); drm_magic_t magic; if (drmGetMagic(dri2_dpy->fd, &magic)) { _eglLog(_EGL_WARNING, "DRI2: failed to get drm magic"); return EGL_FALSE; } if (dri2_x11_authenticate(disp, magic) < 0) { _eglLog(_EGL_WARNING, "DRI2: failed to authenticate"); return EGL_FALSE; } #endif return EGL_TRUE; } static EGLBoolean dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy, _EGLDisplay *disp) { xcb_screen_iterator_t s; xcb_depth_iterator_t d; xcb_visualtype_t *visuals; int i, j, id; unsigned int rgba_masks[4]; EGLint surface_type; EGLint config_attrs[] = { EGL_NATIVE_VISUAL_ID, 0, EGL_NATIVE_VISUAL_TYPE, 0, EGL_NONE }; s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); d = xcb_screen_allowed_depths_iterator(s.data); id = 1; surface_type = EGL_WINDOW_BIT | EGL_PIXMAP_BIT | EGL_PBUFFER_BIT | EGL_SWAP_BEHAVIOR_PRESERVED_BIT; while (d.rem > 0) { EGLBoolean class_added[6] = { 0, }; visuals = xcb_depth_visuals(d.data); for (i = 0; i < xcb_depth_visuals_length(d.data); i++) { if (class_added[visuals[i]._class]) continue; class_added[visuals[i]._class] = EGL_TRUE; for (j = 0; dri2_dpy->driver_configs[j]; j++) { config_attrs[1] = visuals[i].visual_id; config_attrs[3] = visuals[i]._class; rgba_masks[0] = visuals[i].red_mask; rgba_masks[1] = visuals[i].green_mask; rgba_masks[2] = visuals[i].blue_mask; rgba_masks[3] = 0; dri2_add_config(disp, dri2_dpy->driver_configs[j], id++, surface_type, config_attrs, rgba_masks); /* Allow a 24-bit RGB visual to match a 32-bit RGBA EGLConfig. * Otherwise it will only match a 32-bit RGBA visual. On a * composited window manager on X11, this will make all of the * EGLConfigs with destination alpha get blended by the * compositor. This is probably not what the application * wants... especially on drivers that only have 32-bit RGBA * EGLConfigs! */ if (d.data->depth == 24) { rgba_masks[3] = ~(rgba_masks[0] | rgba_masks[1] | rgba_masks[2]); dri2_add_config(disp, dri2_dpy->driver_configs[j], id++, surface_type, config_attrs, rgba_masks); } } } xcb_depth_next(&d); } if (!_eglGetArraySize(disp->Configs)) { _eglLog(_EGL_WARNING, "DRI2: failed to create any config"); return EGL_FALSE; } return EGL_TRUE; } static EGLBoolean dri2_copy_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw, xcb_xfixes_region_t region) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); enum xcb_dri2_attachment_t render_attachment; xcb_dri2_copy_region_cookie_t cookie; /* No-op for a pixmap or pbuffer surface */ if (draw->Type == EGL_PIXMAP_BIT || draw->Type == EGL_PBUFFER_BIT) return EGL_TRUE; if (dri2_dpy->flush) (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable); if (dri2_surf->have_fake_front) render_attachment = XCB_DRI2_ATTACHMENT_BUFFER_FAKE_FRONT_LEFT; else render_attachment = XCB_DRI2_ATTACHMENT_BUFFER_BACK_LEFT; cookie = xcb_dri2_copy_region_unchecked(dri2_dpy->conn, dri2_surf->drawable, region, XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT, render_attachment); free(xcb_dri2_copy_region_reply(dri2_dpy->conn, cookie, NULL)); return EGL_TRUE; } static int64_t dri2_swap_buffers_msc(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw, int64_t msc, int64_t divisor, int64_t remainder) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); uint32_t msc_hi = msc >> 32; uint32_t msc_lo = msc & 0xffffffff; uint32_t divisor_hi = divisor >> 32; uint32_t divisor_lo = divisor & 0xffffffff; uint32_t remainder_hi = remainder >> 32; uint32_t remainder_lo = remainder & 0xffffffff; xcb_dri2_swap_buffers_cookie_t cookie; xcb_dri2_swap_buffers_reply_t *reply; int64_t swap_count = -1; /* No-op for a pixmap or pbuffer surface */ if (draw->Type == EGL_PIXMAP_BIT || draw->Type == EGL_PBUFFER_BIT) return 0; if (draw->SwapBehavior == EGL_BUFFER_PRESERVED || !dri2_dpy->swap_available) return dri2_copy_region(drv, disp, draw, dri2_surf->region) ? 0 : -1; if (dri2_dpy->flush) (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable); cookie = xcb_dri2_swap_buffers_unchecked(dri2_dpy->conn, dri2_surf->drawable, msc_hi, msc_lo, divisor_hi, divisor_lo, remainder_hi, remainder_lo); reply = xcb_dri2_swap_buffers_reply(dri2_dpy->conn, cookie, NULL); if (reply) { swap_count = (((int64_t)reply->swap_hi) << 32) | reply->swap_lo; free(reply); } /* Since we aren't watching for the server's invalidate events like we're * supposed to (due to XCB providing no mechanism for filtering the events * the way xlib does), and SwapBuffers is a common cause of invalidate * events, just shove one down to the driver, even though we haven't told * the driver that we're the kind of loader that provides reliable * invalidate events. This causes the driver to request buffers again at * its next draw, so that we get the correct buffers if a pageflip * happened. The driver should still be using the viewport hack to catch * window resizes. */ if (dri2_dpy->flush && dri2_dpy->flush->base.version >= 3 && dri2_dpy->flush->invalidate) (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable); return swap_count; } static EGLBoolean dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); if (dri2_dpy->dri2) { return dri2_swap_buffers_msc(drv, disp, draw, 0, 0, 0) != -1; } else { assert(dri2_dpy->swrast); dri2_dpy->core->swapBuffers(dri2_surf->dri_drawable); return EGL_TRUE; } } static EGLBoolean dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw, EGLint numRects, const EGLint *rects) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); EGLBoolean ret; xcb_xfixes_region_t region; xcb_rectangle_t rectangles[16]; int i; if (numRects > (int)ARRAY_SIZE(rectangles)) return dri2_copy_region(drv, disp, draw, dri2_surf->region); for (i = 0; i < numRects; i++) { rectangles[i].x = rects[i * 4]; rectangles[i].y = dri2_surf->base.Height - rects[i * 4 + 1] - rects[i * 4 + 3]; rectangles[i].width = rects[i * 4 + 2]; rectangles[i].height = rects[i * 4 + 3]; } region = xcb_generate_id(dri2_dpy->conn); xcb_xfixes_create_region(dri2_dpy->conn, region, numRects, rectangles); ret = dri2_copy_region(drv, disp, draw, region); xcb_xfixes_destroy_region(dri2_dpy->conn, region); return ret; } static EGLBoolean dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw, EGLint x, EGLint y, EGLint width, EGLint height) { const EGLint rect[4] = { x, y, width, height }; if (x < 0 || y < 0 || width < 0 || height < 0) _eglError(EGL_BAD_PARAMETER, "eglPostSubBufferNV"); return dri2_swap_buffers_region(drv, disp, draw, 1, rect); } static EGLBoolean dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf, EGLint interval) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); if (interval > surf->Config->MaxSwapInterval) interval = surf->Config->MaxSwapInterval; else if (interval < surf->Config->MinSwapInterval) interval = surf->Config->MinSwapInterval; if (interval != surf->SwapInterval && dri2_dpy->swap_available) xcb_dri2_swap_interval(dri2_dpy->conn, dri2_surf->drawable, interval); surf->SwapInterval = interval; return EGL_TRUE; } static EGLBoolean dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf, EGLNativePixmapType native_target) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); xcb_gcontext_t gc; xcb_pixmap_t target = (uintptr_t )native_target; (void) drv; (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable); gc = xcb_generate_id(dri2_dpy->conn); xcb_create_gc(dri2_dpy->conn, gc, target, 0, NULL); xcb_copy_area(dri2_dpy->conn, dri2_surf->drawable, target, gc, 0, 0, 0, 0, dri2_surf->base.Width, dri2_surf->base.Height); xcb_free_gc(dri2_dpy->conn, gc); return EGL_TRUE; } static _EGLImage * dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx, EGLClientBuffer buffer, const EGLint *attr_list) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_image *dri2_img; unsigned int attachments[1]; xcb_drawable_t drawable; xcb_dri2_get_buffers_cookie_t buffers_cookie; xcb_dri2_get_buffers_reply_t *buffers_reply; xcb_dri2_dri2_buffer_t *buffers; xcb_get_geometry_cookie_t geometry_cookie; xcb_get_geometry_reply_t *geometry_reply; xcb_generic_error_t *error; int stride, format; (void) ctx; drawable = (xcb_drawable_t) (uintptr_t) buffer; xcb_dri2_create_drawable (dri2_dpy->conn, drawable); attachments[0] = XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT; buffers_cookie = xcb_dri2_get_buffers_unchecked (dri2_dpy->conn, drawable, 1, 1, attachments); geometry_cookie = xcb_get_geometry (dri2_dpy->conn, drawable); buffers_reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, buffers_cookie, NULL); buffers = xcb_dri2_get_buffers_buffers (buffers_reply); if (buffers == NULL) { return NULL; } geometry_reply = xcb_get_geometry_reply (dri2_dpy->conn, geometry_cookie, &error); if (geometry_reply == NULL || error != NULL) { _eglError(EGL_BAD_ALLOC, "xcb_get_geometry"); free(error); free(buffers_reply); return NULL; } switch (geometry_reply->depth) { case 16: format = __DRI_IMAGE_FORMAT_RGB565; break; case 24: format = __DRI_IMAGE_FORMAT_XRGB8888; break; case 32: format = __DRI_IMAGE_FORMAT_ARGB8888; break; default: _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr: unsupported pixmap depth"); free(buffers_reply); free(geometry_reply); return NULL; } dri2_img = malloc(sizeof *dri2_img); if (!dri2_img) { free(buffers_reply); free(geometry_reply); _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr"); return EGL_NO_IMAGE_KHR; } if (!_eglInitImage(&dri2_img->base, disp)) { free(buffers_reply); free(geometry_reply); free(dri2_img); return EGL_NO_IMAGE_KHR; } stride = buffers[0].pitch / buffers[0].cpp; dri2_img->dri_image = dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen, buffers_reply->width, buffers_reply->height, format, buffers[0].name, stride, dri2_img); free(buffers_reply); free(geometry_reply); return &dri2_img->base; } static _EGLImage * dri2_x11_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attr_list) { (void) drv; switch (target) { case EGL_NATIVE_PIXMAP_KHR: return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list); default: return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list); } } static EGLBoolean dri2_initialize_x11_swrast(_EGLDriver *drv, _EGLDisplay *disp) { struct dri2_egl_display *dri2_dpy; drv->API.CreateWindowSurface = dri2_create_window_surface; drv->API.CreatePixmapSurface = dri2_create_pixmap_surface; drv->API.CreatePbufferSurface = dri2_create_pbuffer_surface; drv->API.DestroySurface = dri2_destroy_surface; drv->API.SwapBuffers = dri2_swap_buffers; drv->API.CopyBuffers = dri2_copy_buffers; drv->API.SwapBuffersRegionNOK = NULL; drv->API.CreateImageKHR = NULL; drv->API.DestroyImageKHR = NULL; drv->API.CreateDRMImageMESA = NULL; drv->API.ExportDRMImageMESA = NULL; dri2_dpy = calloc(1, sizeof *dri2_dpy); if (!dri2_dpy) return _eglError(EGL_BAD_ALLOC, "eglInitialize"); disp->DriverData = (void *) dri2_dpy; if (disp->PlatformDisplay == NULL) { dri2_dpy->conn = xcb_connect(0, 0); } else { dri2_dpy->conn = XGetXCBConnection((Display *) disp->PlatformDisplay); } if (xcb_connection_has_error(dri2_dpy->conn)) { _eglLog(_EGL_WARNING, "DRI2: xcb_connect failed"); goto cleanup_dpy; } if (!dri2_load_driver_swrast(disp)) goto cleanup_conn; dri2_dpy->swrast_loader_extension.base.name = __DRI_SWRAST_LOADER; dri2_dpy->swrast_loader_extension.base.version = __DRI_SWRAST_LOADER_VERSION; dri2_dpy->swrast_loader_extension.getDrawableInfo = swrastGetDrawableInfo; dri2_dpy->swrast_loader_extension.putImage = swrastPutImage; dri2_dpy->swrast_loader_extension.getImage = swrastGetImage; dri2_dpy->extensions[0] = &dri2_dpy->swrast_loader_extension.base; dri2_dpy->extensions[1] = NULL; dri2_dpy->extensions[2] = NULL; if (!dri2_create_screen(disp)) goto cleanup_driver; if (dri2_dpy->conn) { if (!dri2_add_configs_for_visuals(dri2_dpy, disp)) goto cleanup_configs; } /* we're supporting EGL 1.4 */ disp->VersionMajor = 1; disp->VersionMinor = 4; return EGL_TRUE; cleanup_configs: _eglCleanupDisplay(disp); dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen); cleanup_driver: dlclose(dri2_dpy->driver); cleanup_conn: if (disp->PlatformDisplay == NULL) xcb_disconnect(dri2_dpy->conn); cleanup_dpy: free(dri2_dpy); return EGL_FALSE; } static void dri2_setup_swap_interval(struct dri2_egl_display *dri2_dpy) { GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1; int arbitrary_max_interval = 1000; /* default behavior for no SwapBuffers support: no vblank syncing * either. */ dri2_dpy->min_swap_interval = 0; dri2_dpy->max_swap_interval = 0; if (!dri2_dpy->swap_available) return; /* If we do have swapbuffers, then we can support pretty much any swap * interval, but we allow driconf to override applications. */ if (dri2_dpy->config) dri2_dpy->config->configQueryi(dri2_dpy->dri_screen, "vblank_mode", &vblank_mode); switch (vblank_mode) { case DRI_CONF_VBLANK_NEVER: dri2_dpy->min_swap_interval = 0; dri2_dpy->max_swap_interval = 0; dri2_dpy->default_swap_interval = 0; break; case DRI_CONF_VBLANK_ALWAYS_SYNC: dri2_dpy->min_swap_interval = 1; dri2_dpy->max_swap_interval = arbitrary_max_interval; dri2_dpy->default_swap_interval = 1; break; case DRI_CONF_VBLANK_DEF_INTERVAL_0: dri2_dpy->min_swap_interval = 0; dri2_dpy->max_swap_interval = arbitrary_max_interval; dri2_dpy->default_swap_interval = 0; break; default: case DRI_CONF_VBLANK_DEF_INTERVAL_1: dri2_dpy->min_swap_interval = 0; dri2_dpy->max_swap_interval = arbitrary_max_interval; dri2_dpy->default_swap_interval = 1; break; } } static EGLBoolean dri2_initialize_x11_dri2(_EGLDriver *drv, _EGLDisplay *disp) { struct dri2_egl_display *dri2_dpy; drv->API.CreateWindowSurface = dri2_create_window_surface; drv->API.CreatePixmapSurface = dri2_create_pixmap_surface; drv->API.CreatePbufferSurface = dri2_create_pbuffer_surface; drv->API.DestroySurface = dri2_destroy_surface; drv->API.SwapBuffers = dri2_swap_buffers; drv->API.CopyBuffers = dri2_copy_buffers; drv->API.CreateImageKHR = dri2_x11_create_image_khr; drv->API.SwapBuffersRegionNOK = dri2_swap_buffers_region; drv->API.PostSubBufferNV = dri2_post_sub_buffer; drv->API.SwapInterval = dri2_swap_interval; dri2_dpy = calloc(1, sizeof *dri2_dpy); if (!dri2_dpy) return _eglError(EGL_BAD_ALLOC, "eglInitialize"); disp->DriverData = (void *) dri2_dpy; if (disp->PlatformDisplay == NULL) { dri2_dpy->conn = xcb_connect(0, 0); } else { dri2_dpy->conn = XGetXCBConnection((Display *) disp->PlatformDisplay); } if (xcb_connection_has_error(dri2_dpy->conn)) { _eglLog(_EGL_WARNING, "DRI2: xcb_connect failed"); goto cleanup_dpy; } if (dri2_dpy->conn) { if (!dri2_connect(dri2_dpy)) goto cleanup_conn; } if (!dri2_load_driver(disp)) goto cleanup_conn; #ifdef O_CLOEXEC dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR | O_CLOEXEC); if (dri2_dpy->fd == -1 && errno == EINVAL) #endif { dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR); if (dri2_dpy->fd != -1) fcntl(dri2_dpy->fd, F_SETFD, fcntl(dri2_dpy->fd, F_GETFD) | FD_CLOEXEC); } if (dri2_dpy->fd == -1) { _eglLog(_EGL_WARNING, "DRI2: could not open %s (%s)", dri2_dpy->device_name, strerror(errno)); goto cleanup_driver; } if (dri2_dpy->conn) { if (!dri2_authenticate(disp)) goto cleanup_fd; } if (dri2_dpy->dri2_minor >= 1) { dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER; dri2_dpy->dri2_loader_extension.base.version = 3; dri2_dpy->dri2_loader_extension.getBuffers = dri2_get_buffers; dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_flush_front_buffer; dri2_dpy->dri2_loader_extension.getBuffersWithFormat = dri2_get_buffers_with_format; } else { dri2_dpy->dri2_loader_extension.base.name = __DRI_DRI2_LOADER; dri2_dpy->dri2_loader_extension.base.version = 2; dri2_dpy->dri2_loader_extension.getBuffers = dri2_get_buffers; dri2_dpy->dri2_loader_extension.flushFrontBuffer = dri2_flush_front_buffer; dri2_dpy->dri2_loader_extension.getBuffersWithFormat = NULL; } dri2_dpy->extensions[0] = &dri2_dpy->dri2_loader_extension.base; dri2_dpy->extensions[1] = &image_lookup_extension.base; dri2_dpy->extensions[2] = NULL; dri2_dpy->swap_available = (dri2_dpy->dri2_minor >= 2); dri2_dpy->invalidate_available = (dri2_dpy->dri2_minor >= 3); if (!dri2_create_screen(disp)) goto cleanup_fd; dri2_setup_swap_interval(dri2_dpy); disp->Extensions.KHR_image_pixmap = EGL_TRUE; disp->Extensions.NOK_swap_region = EGL_TRUE; disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE; disp->Extensions.NV_post_sub_buffer = EGL_TRUE; #ifdef HAVE_WAYLAND_PLATFORM disp->Extensions.WL_bind_wayland_display = EGL_TRUE; #endif if (dri2_dpy->conn) { if (!dri2_add_configs_for_visuals(dri2_dpy, disp)) goto cleanup_configs; } dri2_dpy->authenticate = dri2_x11_authenticate; /* we're supporting EGL 1.4 */ disp->VersionMajor = 1; disp->VersionMinor = 4; return EGL_TRUE; cleanup_configs: _eglCleanupDisplay(disp); dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen); cleanup_fd: close(dri2_dpy->fd); cleanup_driver: dlclose(dri2_dpy->driver); cleanup_conn: if (disp->PlatformDisplay == NULL) xcb_disconnect(dri2_dpy->conn); cleanup_dpy: free(dri2_dpy); return EGL_FALSE; } EGLBoolean dri2_initialize_x11(_EGLDriver *drv, _EGLDisplay *disp) { EGLBoolean initialized = EGL_TRUE; int x11_dri2_accel = (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL); if (x11_dri2_accel) { if (!dri2_initialize_x11_dri2(drv, disp)) { initialized = dri2_initialize_x11_swrast(drv, disp); } } else { initialized = dri2_initialize_x11_swrast(drv, disp); } return initialized; }