/* * Copyright © 2013 Keith Packard * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that copyright * notice and this permission notice appear in supporting documentation, and * that the name of the copyright holders not be used in advertising or * publicity pertaining to distribution of the software without specific, * written prior permission. The copyright holders make no representations * about the suitability of this software for any purpose. It is provided "as * is" without express or implied warranty. * * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE * OF THIS SOFTWARE. */ /* * Portions of this code were adapted from dri2_glx.c which carries the * following copyright: * * Copyright © 2008 Red Hat, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Soft- * ware"), to deal in the Software without restriction, including without * limitation the rights to use, copy, modify, merge, publish, distribute, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, provided that the above copyright * notice(s) and this permission notice appear in all copies of the Soft- * ware and that both the above copyright notice(s) and this permission * notice appear in supporting documentation. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE- * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR- * MANCE OF THIS SOFTWARE. * * Except as contained in this notice, the name of a copyright holder shall * not be used in advertising or otherwise to promote the sale, use or * other dealings in this Software without prior written authorization of * the copyright holder. * * Authors: * Kristian Høgsberg (krh@redhat.com) */ #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) #include #include #include #include #include #include #include #include #include "glxclient.h" #include #include #include #include #include #include #include "dri_common.h" #include "dri3_priv.h" #include "loader.h" #include "dri2.h" static struct dri3_drawable * loader_drawable_to_dri3_drawable(struct loader_dri3_drawable *draw) { size_t offset = offsetof(struct dri3_drawable, loader_drawable); if (!draw) return NULL; return (struct dri3_drawable *)(((void*) draw) - offset); } static int glx_dri3_get_swap_interval(struct loader_dri3_drawable *draw) { struct dri3_drawable *priv = loader_drawable_to_dri3_drawable(draw); return priv->swap_interval; } static void glx_dri3_set_swap_interval(struct loader_dri3_drawable *draw, int interval) { struct dri3_drawable *priv = loader_drawable_to_dri3_drawable(draw); priv->swap_interval = interval; } static void glx_dri3_set_drawable_size(struct loader_dri3_drawable *draw, int width, int height) { /* Nothing to do */ } static bool glx_dri3_in_current_context(struct loader_dri3_drawable *draw) { struct dri3_drawable *priv = loader_drawable_to_dri3_drawable(draw); if (!priv) return false; struct dri3_context *pcp = (struct dri3_context *) __glXGetCurrentContext(); struct dri3_screen *psc = (struct dri3_screen *) priv->base.psc; return (&pcp->base != &dummyContext) && pcp->base.psc == &psc->base; } static __DRIcontext * glx_dri3_get_dri_context(struct loader_dri3_drawable *draw) { struct glx_context *gc = __glXGetCurrentContext(); struct dri3_context *dri3Ctx = (struct dri3_context *) gc; return (gc != &dummyContext) ? dri3Ctx->driContext : NULL; } static __DRIscreen * glx_dri3_get_dri_screen(struct loader_dri3_drawable *draw) { struct glx_context *gc = __glXGetCurrentContext(); struct dri3_context *pcp = (struct dri3_context *) gc; struct dri3_screen *psc = (struct dri3_screen *) pcp->base.psc; return (gc != &dummyContext && psc) ? psc->driScreen : NULL; } static void glx_dri3_flush_drawable(struct loader_dri3_drawable *draw, unsigned flags) { loader_dri3_flush(draw, flags, __DRI2_THROTTLE_SWAPBUFFER); } static void glx_dri3_show_fps(struct loader_dri3_drawable *draw, uint64_t current_ust) { struct dri3_drawable *priv = loader_drawable_to_dri3_drawable(draw); const uint64_t interval = ((struct dri3_screen *) priv->base.psc)->show_fps_interval; if (!interval) return; priv->frames++; /* DRI3+Present together uses microseconds for UST. */ if (priv->previous_ust + interval * 1000000 <= current_ust) { if (priv->previous_ust) { fprintf(stderr, "libGL: FPS = %.1f\n", ((uint64_t) priv->frames * 1000000) / (double)(current_ust - priv->previous_ust)); } priv->frames = 0; priv->previous_ust = current_ust; } } static const struct loader_dri3_vtable glx_dri3_vtable = { .get_swap_interval = glx_dri3_get_swap_interval, .set_swap_interval = glx_dri3_set_swap_interval, .set_drawable_size = glx_dri3_set_drawable_size, .in_current_context = glx_dri3_in_current_context, .get_dri_context = glx_dri3_get_dri_context, .get_dri_screen = glx_dri3_get_dri_screen, .flush_drawable = glx_dri3_flush_drawable, .show_fps = glx_dri3_show_fps, }; static const struct glx_context_vtable dri3_context_vtable; static void dri3_destroy_context(struct glx_context *context) { struct dri3_context *pcp = (struct dri3_context *) context; struct dri3_screen *psc = (struct dri3_screen *) context->psc; driReleaseDrawables(&pcp->base); free((char *) context->extensions); (*psc->core->destroyContext) (pcp->driContext); free(pcp); } static Bool dri3_bind_context(struct glx_context *context, struct glx_context *old, GLXDrawable draw, GLXDrawable read) { struct dri3_context *pcp = (struct dri3_context *) context; struct dri3_screen *psc = (struct dri3_screen *) pcp->base.psc; struct dri3_drawable *pdraw, *pread; __DRIdrawable *dri_draw = NULL, *dri_read = NULL; pdraw = (struct dri3_drawable *) driFetchDrawable(context, draw); pread = (struct dri3_drawable *) driFetchDrawable(context, read); driReleaseDrawables(&pcp->base); if (pdraw) dri_draw = pdraw->loader_drawable.dri_drawable; else if (draw != None) return GLXBadDrawable; if (pread) dri_read = pread->loader_drawable.dri_drawable; else if (read != None) return GLXBadDrawable; if (!(*psc->core->bindContext) (pcp->driContext, dri_draw, dri_read)) return GLXBadContext; if (dri_draw) (*psc->f->invalidate)(dri_draw); if (dri_read && dri_read != dri_draw) (*psc->f->invalidate)(dri_read); return Success; } static void dri3_unbind_context(struct glx_context *context, struct glx_context *new) { struct dri3_context *pcp = (struct dri3_context *) context; struct dri3_screen *psc = (struct dri3_screen *) pcp->base.psc; (*psc->core->unbindContext) (pcp->driContext); } static struct glx_context * dri3_create_context_attribs(struct glx_screen *base, struct glx_config *config_base, struct glx_context *shareList, unsigned num_attribs, const uint32_t *attribs, unsigned *error) { struct dri3_context *pcp = NULL; struct dri3_context *pcp_shared = NULL; struct dri3_screen *psc = (struct dri3_screen *) base; __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) config_base; __DRIcontext *shared = NULL; uint32_t minor_ver = 1; uint32_t major_ver = 2; uint32_t flags = 0; unsigned api; int reset = __DRI_CTX_RESET_NO_NOTIFICATION; uint32_t ctx_attribs[2 * 5]; unsigned num_ctx_attribs = 0; uint32_t render_type; /* Remap the GLX tokens to DRI2 tokens. */ if (!dri2_convert_glx_attribs(num_attribs, attribs, &major_ver, &minor_ver, &render_type, &flags, &api, &reset, error)) goto error_exit; /* Check the renderType value */ if (!validate_renderType_against_config(config_base, render_type)) goto error_exit; if (shareList) { pcp_shared = (struct dri3_context *) shareList; shared = pcp_shared->driContext; } pcp = calloc(1, sizeof *pcp); if (pcp == NULL) { *error = __DRI_CTX_ERROR_NO_MEMORY; goto error_exit; } if (!glx_context_init(&pcp->base, &psc->base, &config->base)) goto error_exit; ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION; ctx_attribs[num_ctx_attribs++] = major_ver; ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION; ctx_attribs[num_ctx_attribs++] = minor_ver; /* Only send a value when the non-default value is requested. By doing * this we don't have to check the driver's DRI3 version before sending the * default value. */ if (reset != __DRI_CTX_RESET_NO_NOTIFICATION) { ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_RESET_STRATEGY; ctx_attribs[num_ctx_attribs++] = reset; } if (flags != 0) { ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_FLAGS; /* The current __DRI_CTX_FLAG_* values are identical to the * GLX_CONTEXT_*_BIT values. */ ctx_attribs[num_ctx_attribs++] = flags; } pcp->driContext = (*psc->image_driver->createContextAttribs) (psc->driScreen, api, config->driConfig, shared, num_ctx_attribs / 2, ctx_attribs, error, pcp); if (pcp->driContext == NULL) goto error_exit; pcp->base.vtable = &dri3_context_vtable; return &pcp->base; error_exit: free(pcp); return NULL; } static struct glx_context * dri3_create_context(struct glx_screen *base, struct glx_config *config_base, struct glx_context *shareList, int renderType) { unsigned int error; return dri3_create_context_attribs(base, config_base, shareList, 0, NULL, &error); } static void dri3_destroy_drawable(__GLXDRIdrawable *base) { struct dri3_drawable *pdraw = (struct dri3_drawable *) base; loader_dri3_drawable_fini(&pdraw->loader_drawable); free(pdraw); } static __GLXDRIdrawable * dri3_create_drawable(struct glx_screen *base, XID xDrawable, GLXDrawable drawable, struct glx_config *config_base) { struct dri3_drawable *pdraw; struct dri3_screen *psc = (struct dri3_screen *) base; __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) config_base; pdraw = calloc(1, sizeof(*pdraw)); if (!pdraw) return NULL; pdraw->base.destroyDrawable = dri3_destroy_drawable; pdraw->base.xDrawable = xDrawable; pdraw->base.drawable = drawable; pdraw->base.psc = &psc->base; (void) __glXInitialize(psc->base.dpy); if (loader_dri3_drawable_init(XGetXCBConnection(base->dpy), xDrawable, psc->driScreen, psc->is_different_gpu, config->driConfig, &psc->loader_dri3_ext, &glx_dri3_vtable, &pdraw->loader_drawable)) { free(pdraw); return NULL; } return &pdraw->base; } /** dri3_wait_for_msc * * Get the X server to send an event when the target msc/divisor/remainder is * reached. */ static int dri3_wait_for_msc(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor, int64_t remainder, int64_t *ust, int64_t *msc, int64_t *sbc) { struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; loader_dri3_wait_for_msc(&priv->loader_drawable, target_msc, divisor, remainder, ust, msc, sbc); return 1; } /** dri3_drawable_get_msc * * Return the current UST/MSC/SBC triplet by asking the server * for an event */ static int dri3_drawable_get_msc(struct glx_screen *psc, __GLXDRIdrawable *pdraw, int64_t *ust, int64_t *msc, int64_t *sbc) { return dri3_wait_for_msc(pdraw, 0, 0, 0, ust, msc,sbc); } /** dri3_wait_for_sbc * * Wait for the completed swap buffer count to reach the specified * target. Presumably the application knows that this will be reached with * outstanding complete events, or we're going to be here awhile. */ static int dri3_wait_for_sbc(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust, int64_t *msc, int64_t *sbc) { struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; return loader_dri3_wait_for_sbc(&priv->loader_drawable, target_sbc, ust, msc, sbc); } static void dri3_copy_sub_buffer(__GLXDRIdrawable *pdraw, int x, int y, int width, int height, Bool flush) { struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; loader_dri3_copy_sub_buffer(&priv->loader_drawable, x, y, width, height, flush); } static void dri3_wait_x(struct glx_context *gc) { struct dri3_drawable *priv = (struct dri3_drawable *) GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); if (priv) loader_dri3_wait_x(&priv->loader_drawable); } static void dri3_wait_gl(struct glx_context *gc) { struct dri3_drawable *priv = (struct dri3_drawable *) GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); if (priv) loader_dri3_wait_gl(&priv->loader_drawable); } /** * Called by the driver when it needs to update the real front buffer with the * contents of its fake front buffer. */ static void dri3_flush_front_buffer(__DRIdrawable *driDrawable, void *loaderPrivate) { struct loader_dri3_drawable *draw = loaderPrivate; struct dri3_drawable *pdraw = loader_drawable_to_dri3_drawable(draw); struct dri3_screen *psc; if (!pdraw) return; if (!pdraw->base.psc) return; psc = (struct dri3_screen *) pdraw->base.psc; (void) __glXInitialize(psc->base.dpy); loader_dri3_flush(draw, __DRI2_FLUSH_DRAWABLE, __DRI2_THROTTLE_FLUSHFRONT); (*psc->f->invalidate)(driDrawable); loader_dri3_wait_gl(draw); } /** * Make sure all pending swapbuffers have been submitted to hardware * * \param driDrawable[in] Pointer to the dri drawable whose swaps we are * flushing. * \param loaderPrivate[in] Pointer to the corresponding struct * loader_dri_drawable. */ static void dri3_flush_swap_buffers(__DRIdrawable *driDrawable, void *loaderPrivate) { struct loader_dri3_drawable *draw = loaderPrivate; struct dri3_drawable *pdraw = loader_drawable_to_dri3_drawable(draw); struct dri3_screen *psc; if (!pdraw) return; if (!pdraw->base.psc) return; psc = (struct dri3_screen *) pdraw->base.psc; (void) __glXInitialize(psc->base.dpy); loader_dri3_swapbuffer_barrier(draw); } static void dri_set_background_context(void *loaderPrivate) { struct dri3_context *pcp = (struct dri3_context *)loaderPrivate; __glXSetCurrentContext(&pcp->base); } static GLboolean dri_is_thread_safe(void *loaderPrivate) { /* Unlike DRI2, DRI3 doesn't call GetBuffers/GetBuffersWithFormat * during draw so we're safe here. */ return true; } /* The image loader extension record for DRI3 */ static const __DRIimageLoaderExtension imageLoaderExtension = { .base = { __DRI_IMAGE_LOADER, 3 }, .getBuffers = loader_dri3_get_buffers, .flushFrontBuffer = dri3_flush_front_buffer, .flushSwapBuffers = dri3_flush_swap_buffers, }; const __DRIuseInvalidateExtension dri3UseInvalidate = { .base = { __DRI_USE_INVALIDATE, 1 } }; static const __DRIbackgroundCallableExtension driBackgroundCallable = { .base = { __DRI_BACKGROUND_CALLABLE, 2 }, .setBackgroundContext = dri_set_background_context, .isThreadSafe = dri_is_thread_safe, }; static const __DRIextension *loader_extensions[] = { &imageLoaderExtension.base, &dri3UseInvalidate.base, &driBackgroundCallable.base, NULL }; /** dri3_swap_buffers * * Make the current back buffer visible using the present extension */ static int64_t dri3_swap_buffers(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor, int64_t remainder, Bool flush) { struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; unsigned flags = __DRI2_FLUSH_DRAWABLE; if (flush) flags |= __DRI2_FLUSH_CONTEXT; return loader_dri3_swap_buffers_msc(&priv->loader_drawable, target_msc, divisor, remainder, flags, false); } static int dri3_get_buffer_age(__GLXDRIdrawable *pdraw) { struct dri3_drawable *priv = (struct dri3_drawable *)pdraw; return loader_dri3_query_buffer_age(&priv->loader_drawable); } /** dri3_destroy_screen */ static void dri3_destroy_screen(struct glx_screen *base) { struct dri3_screen *psc = (struct dri3_screen *) base; /* Free the direct rendering per screen data */ (*psc->core->destroyScreen) (psc->driScreen); driDestroyConfigs(psc->driver_configs); close(psc->fd); free(psc); } /** dri3_set_swap_interval * * Record the application swap interval specification, */ static int dri3_set_swap_interval(__GLXDRIdrawable *pdraw, int interval) { assert(pdraw != NULL); struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1; struct dri3_screen *psc = (struct dri3_screen *) priv->base.psc; if (psc->config) psc->config->configQueryi(psc->driScreen, "vblank_mode", &vblank_mode); switch (vblank_mode) { case DRI_CONF_VBLANK_NEVER: if (interval != 0) return GLX_BAD_VALUE; break; case DRI_CONF_VBLANK_ALWAYS_SYNC: if (interval <= 0) return GLX_BAD_VALUE; break; default: break; } loader_dri3_set_swap_interval(&priv->loader_drawable, interval); return 0; } /** dri3_get_swap_interval * * Return the stored swap interval */ static int dri3_get_swap_interval(__GLXDRIdrawable *pdraw) { assert(pdraw != NULL); struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; return priv->swap_interval; } static void dri3_bind_tex_image(Display * dpy, GLXDrawable drawable, int buffer, const int *attrib_list) { struct glx_context *gc = __glXGetCurrentContext(); struct dri3_context *pcp = (struct dri3_context *) gc; __GLXDRIdrawable *base = GetGLXDRIDrawable(dpy, drawable); struct dri3_drawable *pdraw = (struct dri3_drawable *) base; struct dri3_screen *psc; if (pdraw != NULL) { psc = (struct dri3_screen *) base->psc; (*psc->f->invalidate)(pdraw->loader_drawable.dri_drawable); XSync(dpy, false); (*psc->texBuffer->setTexBuffer2) (pcp->driContext, pdraw->base.textureTarget, pdraw->base.textureFormat, pdraw->loader_drawable.dri_drawable); } } static void dri3_release_tex_image(Display * dpy, GLXDrawable drawable, int buffer) { struct glx_context *gc = __glXGetCurrentContext(); struct dri3_context *pcp = (struct dri3_context *) gc; __GLXDRIdrawable *base = GetGLXDRIDrawable(dpy, drawable); struct dri3_drawable *pdraw = (struct dri3_drawable *) base; struct dri3_screen *psc; if (pdraw != NULL) { psc = (struct dri3_screen *) base->psc; if (psc->texBuffer->base.version >= 3 && psc->texBuffer->releaseTexBuffer != NULL) (*psc->texBuffer->releaseTexBuffer) (pcp->driContext, pdraw->base.textureTarget, pdraw->loader_drawable.dri_drawable); } } static const struct glx_context_vtable dri3_context_vtable = { .destroy = dri3_destroy_context, .bind = dri3_bind_context, .unbind = dri3_unbind_context, .wait_gl = dri3_wait_gl, .wait_x = dri3_wait_x, .use_x_font = DRI_glXUseXFont, .bind_tex_image = dri3_bind_tex_image, .release_tex_image = dri3_release_tex_image, .get_proc_address = NULL, .interop_query_device_info = dri3_interop_query_device_info, .interop_export_object = dri3_interop_export_object }; /** dri3_bind_extensions * * Enable all of the extensions supported on DRI3 */ static void dri3_bind_extensions(struct dri3_screen *psc, struct glx_display * priv, const char *driverName) { const __DRIextension **extensions; unsigned mask; int i; extensions = psc->core->getExtensions(psc->driScreen); __glXEnableDirectExtension(&psc->base, "GLX_SGI_video_sync"); __glXEnableDirectExtension(&psc->base, "GLX_SGI_swap_control"); __glXEnableDirectExtension(&psc->base, "GLX_MESA_swap_control"); __glXEnableDirectExtension(&psc->base, "GLX_SGI_make_current_read"); __glXEnableDirectExtension(&psc->base, "GLX_INTEL_swap_event"); mask = psc->image_driver->getAPIMask(psc->driScreen); __glXEnableDirectExtension(&psc->base, "GLX_ARB_create_context"); __glXEnableDirectExtension(&psc->base, "GLX_ARB_create_context_profile"); if ((mask & ((1 << __DRI_API_GLES) | (1 << __DRI_API_GLES2) | (1 << __DRI_API_GLES3))) != 0) { __glXEnableDirectExtension(&psc->base, "GLX_EXT_create_context_es_profile"); __glXEnableDirectExtension(&psc->base, "GLX_EXT_create_context_es2_profile"); } for (i = 0; extensions[i]; i++) { /* when on a different gpu than the server, the server pixmaps * can have a tiling mode we can't read. Thus we can't create * a texture from them. */ if (!psc->is_different_gpu && (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0)) { psc->texBuffer = (__DRItexBufferExtension *) extensions[i]; __glXEnableDirectExtension(&psc->base, "GLX_EXT_texture_from_pixmap"); } if ((strcmp(extensions[i]->name, __DRI2_FLUSH) == 0)) { psc->f = (__DRI2flushExtension *) extensions[i]; /* internal driver extension, no GL extension exposed */ } if (strcmp(extensions[i]->name, __DRI_IMAGE) == 0) psc->image = (__DRIimageExtension *) extensions[i]; if ((strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0)) psc->config = (__DRI2configQueryExtension *) extensions[i]; if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) __glXEnableDirectExtension(&psc->base, "GLX_ARB_create_context_robustness"); if (strcmp(extensions[i]->name, __DRI2_RENDERER_QUERY) == 0) { psc->rendererQuery = (__DRI2rendererQueryExtension *) extensions[i]; __glXEnableDirectExtension(&psc->base, "GLX_MESA_query_renderer"); } if (strcmp(extensions[i]->name, __DRI2_INTEROP) == 0) psc->interop = (__DRI2interopExtension*)extensions[i]; } } static const struct glx_screen_vtable dri3_screen_vtable = { .create_context = dri3_create_context, .create_context_attribs = dri3_create_context_attribs, .query_renderer_integer = dri3_query_renderer_integer, .query_renderer_string = dri3_query_renderer_string, }; /** dri3_create_screen * * Initialize DRI3 on the specified screen. * * Opens the DRI device, locates the appropriate DRI driver * and loads that. * * Checks to see if the driver supports the necessary extensions * * Initializes the driver for the screen and sets up our structures */ static struct glx_screen * dri3_create_screen(int screen, struct glx_display * priv) { xcb_connection_t *c = XGetXCBConnection(priv->dpy); const __DRIconfig **driver_configs; const __DRIextension **extensions; const struct dri3_display *const pdp = (struct dri3_display *) priv->dri3Display; struct dri3_screen *psc; __GLXDRIscreen *psp; struct glx_config *configs = NULL, *visuals = NULL; char *driverName, *deviceName, *tmp; int i; unsigned char disable; psc = calloc(1, sizeof *psc); if (psc == NULL) return NULL; psc->fd = -1; if (!glx_screen_init(&psc->base, screen, priv)) { free(psc); return NULL; } psc->fd = loader_dri3_open(c, RootWindow(priv->dpy, screen), None); if (psc->fd < 0) { int conn_error = xcb_connection_has_error(c); glx_screen_cleanup(&psc->base); free(psc); InfoMessageF("screen %d does not appear to be DRI3 capable\n", screen); if (conn_error) ErrorMessageF("Connection closed during DRI3 initialization failure"); return NULL; } psc->fd = loader_get_user_preferred_fd(psc->fd, &psc->is_different_gpu); deviceName = NULL; driverName = loader_get_driver_for_fd(psc->fd); if (!driverName) { ErrorMessageF("No driver found\n"); goto handle_error; } psc->driver = driOpenDriver(driverName); if (psc->driver == NULL) { ErrorMessageF("driver pointer missing\n"); goto handle_error; } extensions = driGetDriverExtensions(psc->driver, driverName); if (extensions == NULL) goto handle_error; for (i = 0; extensions[i]; i++) { if (strcmp(extensions[i]->name, __DRI_CORE) == 0) psc->core = (__DRIcoreExtension *) extensions[i]; if (strcmp(extensions[i]->name, __DRI_IMAGE_DRIVER) == 0) psc->image_driver = (__DRIimageDriverExtension *) extensions[i]; } if (psc->core == NULL) { ErrorMessageF("core dri driver extension not found\n"); goto handle_error; } if (psc->image_driver == NULL) { ErrorMessageF("image driver extension not found\n"); goto handle_error; } psc->driScreen = psc->image_driver->createNewScreen2(screen, psc->fd, pdp->loader_extensions, extensions, &driver_configs, psc); if (psc->driScreen == NULL) { ErrorMessageF("failed to create dri screen\n"); goto handle_error; } dri3_bind_extensions(psc, priv, driverName); if (!psc->image || psc->image->base.version < 7 || !psc->image->createImageFromFds) { ErrorMessageF("Version 7 or imageFromFds image extension not found\n"); goto handle_error; } if (!psc->f || psc->f->base.version < 4) { ErrorMessageF("Version 4 or later of flush extension not found\n"); goto handle_error; } if (psc->is_different_gpu && psc->image->base.version < 9) { ErrorMessageF("Different GPU, but image extension version 9 or later not found\n"); goto handle_error; } if (psc->is_different_gpu && !psc->image->blitImage) { ErrorMessageF("Different GPU, but blitImage not implemented for this driver\n"); goto handle_error; } if (!psc->is_different_gpu && ( !psc->texBuffer || psc->texBuffer->base.version < 2 || !psc->texBuffer->setTexBuffer2 )) { ErrorMessageF("Version 2 or later of texBuffer extension not found\n"); goto handle_error; } psc->loader_dri3_ext.core = psc->core; psc->loader_dri3_ext.image_driver = psc->image_driver; psc->loader_dri3_ext.flush = psc->f; psc->loader_dri3_ext.tex_buffer = psc->texBuffer; psc->loader_dri3_ext.image = psc->image; psc->loader_dri3_ext.config = psc->config; configs = driConvertConfigs(psc->core, psc->base.configs, driver_configs); visuals = driConvertConfigs(psc->core, psc->base.visuals, driver_configs); if (!configs || !visuals) { ErrorMessageF("No matching fbConfigs or visuals found\n"); goto handle_error; } glx_config_destroy_list(psc->base.configs); psc->base.configs = configs; glx_config_destroy_list(psc->base.visuals); psc->base.visuals = visuals; psc->driver_configs = driver_configs; psc->base.vtable = &dri3_screen_vtable; psp = &psc->vtable; psc->base.driScreen = psp; psp->destroyScreen = dri3_destroy_screen; psp->createDrawable = dri3_create_drawable; psp->swapBuffers = dri3_swap_buffers; psp->getDrawableMSC = dri3_drawable_get_msc; psp->waitForMSC = dri3_wait_for_msc; psp->waitForSBC = dri3_wait_for_sbc; psp->setSwapInterval = dri3_set_swap_interval; psp->getSwapInterval = dri3_get_swap_interval; if (psc->config->configQueryb(psc->driScreen, "glx_disable_oml_sync_control", &disable) || !disable) __glXEnableDirectExtension(&psc->base, "GLX_OML_sync_control"); psp->copySubBuffer = dri3_copy_sub_buffer; __glXEnableDirectExtension(&psc->base, "GLX_MESA_copy_sub_buffer"); psp->getBufferAge = dri3_get_buffer_age; if (psc->config->configQueryb(psc->driScreen, "glx_disable_ext_buffer_age", &disable) || !disable) __glXEnableDirectExtension(&psc->base, "GLX_EXT_buffer_age"); free(driverName); free(deviceName); tmp = getenv("LIBGL_SHOW_FPS"); psc->show_fps_interval = tmp ? atoi(tmp) : 0; if (psc->show_fps_interval < 0) psc->show_fps_interval = 0; InfoMessageF("Using DRI3 for screen %d\n", screen); return &psc->base; handle_error: CriticalErrorMessageF("failed to load driver: %s\n", driverName); if (configs) glx_config_destroy_list(configs); if (visuals) glx_config_destroy_list(visuals); if (psc->driScreen) psc->core->destroyScreen(psc->driScreen); psc->driScreen = NULL; if (psc->fd >= 0) close(psc->fd); if (psc->driver) dlclose(psc->driver); free(driverName); free(deviceName); glx_screen_cleanup(&psc->base); free(psc); return NULL; } /** dri_destroy_display * * Called from __glXFreeDisplayPrivate. */ static void dri3_destroy_display(__GLXDRIdisplay * dpy) { free(dpy); } /** dri3_create_display * * Allocate, initialize and return a __DRIdisplayPrivate object. * This is called from __glXInitialize() when we are given a new * display pointer. This is public to that function, but hidden from * outside of libGL. */ _X_HIDDEN __GLXDRIdisplay * dri3_create_display(Display * dpy) { struct dri3_display *pdp; xcb_connection_t *c = XGetXCBConnection(dpy); xcb_dri3_query_version_cookie_t dri3_cookie; xcb_dri3_query_version_reply_t *dri3_reply; xcb_present_query_version_cookie_t present_cookie; xcb_present_query_version_reply_t *present_reply; xcb_generic_error_t *error; const xcb_query_extension_reply_t *extension; xcb_prefetch_extension_data(c, &xcb_dri3_id); xcb_prefetch_extension_data(c, &xcb_present_id); extension = xcb_get_extension_data(c, &xcb_dri3_id); if (!(extension && extension->present)) return NULL; extension = xcb_get_extension_data(c, &xcb_present_id); if (!(extension && extension->present)) return NULL; dri3_cookie = xcb_dri3_query_version(c, XCB_DRI3_MAJOR_VERSION, XCB_DRI3_MINOR_VERSION); present_cookie = xcb_present_query_version(c, XCB_PRESENT_MAJOR_VERSION, XCB_PRESENT_MINOR_VERSION); pdp = malloc(sizeof *pdp); if (pdp == NULL) return NULL; dri3_reply = xcb_dri3_query_version_reply(c, dri3_cookie, &error); if (!dri3_reply) { free(error); goto no_extension; } pdp->dri3Major = dri3_reply->major_version; pdp->dri3Minor = dri3_reply->minor_version; free(dri3_reply); present_reply = xcb_present_query_version_reply(c, present_cookie, &error); if (!present_reply) { free(error); goto no_extension; } pdp->presentMajor = present_reply->major_version; pdp->presentMinor = present_reply->minor_version; free(present_reply); pdp->base.destroyDisplay = dri3_destroy_display; pdp->base.createScreen = dri3_create_screen; loader_set_logger(dri_message); pdp->loader_extensions = loader_extensions; return &pdp->base; no_extension: free(pdp); return NULL; } #endif /* GLX_DIRECT_RENDERING */