| /* |
| * 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 <X11/Xlib.h> |
| #include <X11/extensions/Xfixes.h> |
| #include <X11/Xlib-xcb.h> |
| #include <X11/xshmfence.h> |
| #include <xcb/xcb.h> |
| #include <xcb/dri3.h> |
| #include <xcb/present.h> |
| #include <GL/gl.h> |
| #include "glxclient.h" |
| #include <dlfcn.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <sys/types.h> |
| #include <sys/mman.h> |
| #include <sys/time.h> |
| |
| #include "dri_common.h" |
| #include "dri3_priv.h" |
| #include "loader.h" |
| #include "dri2.h" |
| |
| static const struct glx_context_vtable dri3_context_vtable; |
| |
| static inline void |
| dri3_fence_reset(xcb_connection_t *c, struct dri3_buffer *buffer) |
| { |
| xshmfence_reset(buffer->shm_fence); |
| } |
| |
| static inline void |
| dri3_fence_set(struct dri3_buffer *buffer) |
| { |
| xshmfence_trigger(buffer->shm_fence); |
| } |
| |
| static inline void |
| dri3_fence_trigger(xcb_connection_t *c, struct dri3_buffer *buffer) |
| { |
| xcb_sync_trigger_fence(c, buffer->sync_fence); |
| } |
| |
| static inline void |
| dri3_fence_await(xcb_connection_t *c, struct dri3_buffer *buffer) |
| { |
| xcb_flush(c); |
| xshmfence_await(buffer->shm_fence); |
| } |
| |
| static inline Bool |
| dri3_fence_triggered(struct dri3_buffer *buffer) |
| { |
| return xshmfence_query(buffer->shm_fence); |
| } |
| |
| 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; |
| |
| pdraw = (struct dri3_drawable *) driFetchDrawable(context, draw); |
| pread = (struct dri3_drawable *) driFetchDrawable(context, read); |
| |
| driReleaseDrawables(&pcp->base); |
| |
| if (pdraw == NULL || pread == NULL) |
| return GLXBadDrawable; |
| |
| if (!(*psc->core->bindContext) (pcp->driContext, |
| pdraw->driDrawable, pread->driDrawable)) |
| return GLXBadContext; |
| |
| 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_free_render_buffer(struct dri3_drawable *pdraw, struct dri3_buffer *buffer); |
| |
| static void |
| dri3_update_num_back(struct dri3_drawable *priv) |
| { |
| priv->num_back = 1; |
| if (priv->flipping) { |
| if (!priv->is_pixmap && !(priv->present_capabilities & XCB_PRESENT_CAPABILITY_ASYNC)) |
| priv->num_back++; |
| priv->num_back++; |
| } |
| if (priv->swap_interval == 0) |
| priv->num_back++; |
| } |
| |
| static void |
| dri3_destroy_drawable(__GLXDRIdrawable *base) |
| { |
| struct dri3_screen *psc = (struct dri3_screen *) base->psc; |
| struct dri3_drawable *pdraw = (struct dri3_drawable *) base; |
| xcb_connection_t *c = XGetXCBConnection(pdraw->base.psc->dpy); |
| int i; |
| |
| (*psc->core->destroyDrawable) (pdraw->driDrawable); |
| |
| for (i = 0; i < DRI3_NUM_BUFFERS; i++) { |
| if (pdraw->buffers[i]) |
| dri3_free_render_buffer(pdraw, pdraw->buffers[i]); |
| } |
| |
| if (pdraw->special_event) |
| xcb_unregister_for_special_event(c, pdraw->special_event); |
| 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; |
| GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1; |
| |
| 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; |
| pdraw->swap_interval = 1; /* default may be overridden below */ |
| pdraw->have_back = 0; |
| pdraw->have_fake_front = 0; |
| |
| if (psc->config) |
| psc->config->configQueryi(psc->driScreen, |
| "vblank_mode", &vblank_mode); |
| |
| switch (vblank_mode) { |
| case DRI_CONF_VBLANK_NEVER: |
| case DRI_CONF_VBLANK_DEF_INTERVAL_0: |
| pdraw->swap_interval = 0; |
| break; |
| case DRI_CONF_VBLANK_DEF_INTERVAL_1: |
| case DRI_CONF_VBLANK_ALWAYS_SYNC: |
| default: |
| pdraw->swap_interval = 1; |
| break; |
| } |
| |
| dri3_update_num_back(pdraw); |
| |
| (void) __glXInitialize(psc->base.dpy); |
| |
| /* Create a new drawable */ |
| pdraw->driDrawable = |
| (*psc->image_driver->createNewDrawable) (psc->driScreen, |
| config->driConfig, pdraw); |
| |
| if (!pdraw->driDrawable) { |
| free(pdraw); |
| return NULL; |
| } |
| |
| /* |
| * Make sure server has the same swap interval we do for the new |
| * drawable. |
| */ |
| if (psc->vtable.setSwapInterval) |
| psc->vtable.setSwapInterval(&pdraw->base, pdraw->swap_interval); |
| |
| return &pdraw->base; |
| } |
| |
| static void |
| show_fps(struct dri3_drawable *draw, uint64_t current_ust) |
| { |
| const uint64_t interval = |
| ((struct dri3_screen *) draw->base.psc)->show_fps_interval; |
| |
| draw->frames++; |
| |
| /* DRI3+Present together uses microseconds for UST. */ |
| if (draw->previous_ust + interval * 1000000 <= current_ust) { |
| if (draw->previous_ust) { |
| fprintf(stderr, "libGL: FPS = %.1f\n", |
| ((uint64_t) draw->frames * 1000000) / |
| (double)(current_ust - draw->previous_ust)); |
| } |
| draw->frames = 0; |
| draw->previous_ust = current_ust; |
| } |
| } |
| |
| /* |
| * Process one Present event |
| */ |
| static void |
| dri3_handle_present_event(struct dri3_drawable *priv, xcb_present_generic_event_t *ge) |
| { |
| struct dri3_screen *psc = (struct dri3_screen *) priv->base.psc; |
| |
| switch (ge->evtype) { |
| case XCB_PRESENT_CONFIGURE_NOTIFY: { |
| xcb_present_configure_notify_event_t *ce = (void *) ge; |
| |
| priv->width = ce->width; |
| priv->height = ce->height; |
| break; |
| } |
| case XCB_PRESENT_COMPLETE_NOTIFY: { |
| xcb_present_complete_notify_event_t *ce = (void *) ge; |
| |
| /* Compute the processed SBC number from the received 32-bit serial number merged |
| * with the upper 32-bits of the sent 64-bit serial number while checking for |
| * wrap |
| */ |
| if (ce->kind == XCB_PRESENT_COMPLETE_KIND_PIXMAP) { |
| priv->recv_sbc = (priv->send_sbc & 0xffffffff00000000LL) | ce->serial; |
| if (priv->recv_sbc > priv->send_sbc) |
| priv->recv_sbc -= 0x100000000; |
| switch (ce->mode) { |
| case XCB_PRESENT_COMPLETE_MODE_FLIP: |
| priv->flipping = true; |
| break; |
| case XCB_PRESENT_COMPLETE_MODE_COPY: |
| priv->flipping = false; |
| break; |
| } |
| dri3_update_num_back(priv); |
| |
| if (psc->show_fps_interval) |
| show_fps(priv, ce->ust); |
| |
| priv->ust = ce->ust; |
| priv->msc = ce->msc; |
| } else { |
| priv->recv_msc_serial = ce->serial; |
| priv->notify_ust = ce->ust; |
| priv->notify_msc = ce->msc; |
| } |
| break; |
| } |
| case XCB_PRESENT_EVENT_IDLE_NOTIFY: { |
| xcb_present_idle_notify_event_t *ie = (void *) ge; |
| int b; |
| |
| for (b = 0; b < sizeof (priv->buffers) / sizeof (priv->buffers[0]); b++) { |
| struct dri3_buffer *buf = priv->buffers[b]; |
| |
| if (buf && buf->pixmap == ie->pixmap) { |
| buf->busy = 0; |
| if (priv->num_back <= b && b < DRI3_MAX_BACK) { |
| dri3_free_render_buffer(priv, buf); |
| priv->buffers[b] = NULL; |
| } |
| break; |
| } |
| } |
| break; |
| } |
| } |
| free(ge); |
| } |
| |
| static bool |
| dri3_wait_for_event(__GLXDRIdrawable *pdraw) |
| { |
| xcb_connection_t *c = XGetXCBConnection(pdraw->psc->dpy); |
| struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; |
| xcb_generic_event_t *ev; |
| xcb_present_generic_event_t *ge; |
| |
| xcb_flush(c); |
| ev = xcb_wait_for_special_event(c, priv->special_event); |
| if (!ev) |
| return false; |
| ge = (void *) ev; |
| dri3_handle_present_event(priv, ge); |
| return true; |
| } |
| |
| /** 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) |
| { |
| xcb_connection_t *c = XGetXCBConnection(pdraw->psc->dpy); |
| struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; |
| uint32_t msc_serial; |
| |
| /* Ask for the an event for the target MSC */ |
| msc_serial = ++priv->send_msc_serial; |
| xcb_present_notify_msc(c, |
| priv->base.xDrawable, |
| msc_serial, |
| target_msc, |
| divisor, |
| remainder); |
| |
| xcb_flush(c); |
| |
| /* Wait for the event */ |
| if (priv->special_event) { |
| while ((int32_t) (msc_serial - priv->recv_msc_serial) > 0) { |
| if (!dri3_wait_for_event(pdraw)) |
| return 0; |
| } |
| } |
| |
| *ust = priv->notify_ust; |
| *msc = priv->notify_msc; |
| *sbc = priv->recv_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; |
| |
| /* From the GLX_OML_sync_control spec: |
| * |
| * "If <target_sbc> = 0, the function will block until all previous |
| * swaps requested with glXSwapBuffersMscOML for that window have |
| * completed." |
| */ |
| if (!target_sbc) |
| target_sbc = priv->send_sbc; |
| |
| while (priv->recv_sbc < target_sbc) { |
| if (!dri3_wait_for_event(pdraw)) |
| return 0; |
| } |
| |
| *ust = priv->ust; |
| *msc = priv->msc; |
| *sbc = priv->recv_sbc; |
| return 1; |
| } |
| |
| /** |
| * Asks the driver to flush any queued work necessary for serializing with the |
| * X command stream, and optionally the slightly more strict requirement of |
| * glFlush() equivalence (which would require flushing even if nothing had |
| * been drawn to a window system framebuffer, for example). |
| */ |
| static void |
| dri3_flush(struct dri3_screen *psc, |
| struct dri3_drawable *draw, |
| unsigned flags, |
| enum __DRI2throttleReason throttle_reason) |
| { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| |
| if (gc) { |
| struct dri3_context *dri3Ctx = (struct dri3_context *)gc; |
| |
| (*psc->f->flush_with_flags)(dri3Ctx->driContext, draw->driDrawable, flags, throttle_reason); |
| } |
| } |
| |
| static xcb_gcontext_t |
| dri3_drawable_gc(struct dri3_drawable *priv) |
| { |
| if (!priv->gc) { |
| uint32_t v; |
| xcb_connection_t *c = XGetXCBConnection(priv->base.psc->dpy); |
| |
| v = 0; |
| xcb_create_gc(c, |
| (priv->gc = xcb_generate_id(c)), |
| priv->base.xDrawable, |
| XCB_GC_GRAPHICS_EXPOSURES, |
| &v); |
| } |
| return priv->gc; |
| } |
| |
| static struct dri3_buffer * |
| dri3_back_buffer(struct dri3_drawable *priv) |
| { |
| return priv->buffers[DRI3_BACK_ID(priv->cur_back)]; |
| } |
| |
| static struct dri3_buffer * |
| dri3_fake_front_buffer(struct dri3_drawable *priv) |
| { |
| return priv->buffers[DRI3_FRONT_ID]; |
| } |
| |
| static void |
| dri3_copy_area (xcb_connection_t *c /**< */, |
| xcb_drawable_t src_drawable /**< */, |
| xcb_drawable_t dst_drawable /**< */, |
| xcb_gcontext_t gc /**< */, |
| int16_t src_x /**< */, |
| int16_t src_y /**< */, |
| int16_t dst_x /**< */, |
| int16_t dst_y /**< */, |
| uint16_t width /**< */, |
| uint16_t height /**< */) |
| { |
| xcb_void_cookie_t cookie; |
| |
| cookie = xcb_copy_area_checked(c, |
| src_drawable, |
| dst_drawable, |
| gc, |
| src_x, |
| src_y, |
| dst_x, |
| dst_y, |
| width, |
| height); |
| xcb_discard_reply(c, cookie.sequence); |
| } |
| |
| 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; |
| struct dri3_screen *psc = (struct dri3_screen *) pdraw->psc; |
| struct dri3_context *pcp = (struct dri3_context *) __glXGetCurrentContext(); |
| xcb_connection_t *c = XGetXCBConnection(priv->base.psc->dpy); |
| struct dri3_buffer *back; |
| |
| unsigned flags = __DRI2_FLUSH_DRAWABLE; |
| |
| /* Check we have the right attachments */ |
| if (!priv->have_back || priv->is_pixmap) |
| return; |
| |
| if (flush) |
| flags |= __DRI2_FLUSH_CONTEXT; |
| dri3_flush(psc, priv, flags, __DRI2_THROTTLE_SWAPBUFFER); |
| |
| back = dri3_back_buffer(priv); |
| y = priv->height - y - height; |
| |
| if (psc->is_different_gpu && (&pcp->base != &dummyContext) && pcp->base.psc == &psc->base) { |
| /* Update the linear buffer part of the back buffer |
| * for the dri3_copy_area operation |
| */ |
| psc->image->blitImage(pcp->driContext, |
| back->linear_buffer, |
| back->image, |
| 0, 0, back->width, |
| back->height, |
| 0, 0, back->width, |
| back->height, __BLIT_FLAG_FLUSH); |
| /* We use blitImage to update our fake front, |
| */ |
| if (priv->have_fake_front) |
| psc->image->blitImage(pcp->driContext, |
| dri3_fake_front_buffer(priv)->image, |
| back->image, |
| x, y, width, height, |
| x, y, width, height, __BLIT_FLAG_FLUSH); |
| } |
| |
| dri3_fence_reset(c, back); |
| dri3_copy_area(c, |
| dri3_back_buffer(priv)->pixmap, |
| priv->base.xDrawable, |
| dri3_drawable_gc(priv), |
| x, y, x, y, width, height); |
| dri3_fence_trigger(c, back); |
| /* Refresh the fake front (if present) after we just damaged the real |
| * front. |
| */ |
| if (priv->have_fake_front && !psc->is_different_gpu) { |
| dri3_fence_reset(c, dri3_fake_front_buffer(priv)); |
| dri3_copy_area(c, |
| dri3_back_buffer(priv)->pixmap, |
| dri3_fake_front_buffer(priv)->pixmap, |
| dri3_drawable_gc(priv), |
| x, y, x, y, width, height); |
| dri3_fence_trigger(c, dri3_fake_front_buffer(priv)); |
| dri3_fence_await(c, dri3_fake_front_buffer(priv)); |
| } |
| dri3_fence_await(c, back); |
| } |
| |
| static void |
| dri3_copy_drawable(struct dri3_drawable *priv, Drawable dest, Drawable src) |
| { |
| struct dri3_screen *psc = (struct dri3_screen *) priv->base.psc; |
| xcb_connection_t *c = XGetXCBConnection(priv->base.psc->dpy); |
| |
| dri3_flush(psc, priv, __DRI2_FLUSH_DRAWABLE, 0); |
| |
| dri3_fence_reset(c, dri3_fake_front_buffer(priv)); |
| dri3_copy_area(c, |
| src, dest, |
| dri3_drawable_gc(priv), |
| 0, 0, 0, 0, priv->width, priv->height); |
| dri3_fence_trigger(c, dri3_fake_front_buffer(priv)); |
| dri3_fence_await(c, dri3_fake_front_buffer(priv)); |
| } |
| |
| static void |
| dri3_wait_x(struct glx_context *gc) |
| { |
| struct dri3_context *pcp = (struct dri3_context *) gc; |
| struct dri3_drawable *priv = (struct dri3_drawable *) |
| GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); |
| struct dri3_screen *psc; |
| struct dri3_buffer *front; |
| |
| if (priv == NULL || !priv->have_fake_front) |
| return; |
| |
| psc = (struct dri3_screen *) priv->base.psc; |
| front = dri3_fake_front_buffer(priv); |
| |
| dri3_copy_drawable(priv, front->pixmap, priv->base.xDrawable); |
| |
| /* In the psc->is_different_gpu case, the linear buffer has been updated, |
| * but not yet the tiled buffer. |
| * Copy back to the tiled buffer we use for rendering. |
| * Note that we don't need flushing. |
| */ |
| if (psc->is_different_gpu && (&pcp->base != &dummyContext) && pcp->base.psc == &psc->base) |
| psc->image->blitImage(pcp->driContext, |
| front->image, |
| front->linear_buffer, |
| 0, 0, front->width, |
| front->height, |
| 0, 0, front->width, |
| front->height, 0); |
| } |
| |
| static void |
| dri3_wait_gl(struct glx_context *gc) |
| { |
| struct dri3_context *pcp = (struct dri3_context *) gc; |
| struct dri3_drawable *priv = (struct dri3_drawable *) |
| GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); |
| struct dri3_screen *psc; |
| struct dri3_buffer *front; |
| |
| if (priv == NULL || !priv->have_fake_front) |
| return; |
| |
| psc = (struct dri3_screen *) priv->base.psc; |
| front = dri3_fake_front_buffer(priv); |
| |
| /* In the psc->is_different_gpu case, we update the linear_buffer |
| * before updating the real front. |
| */ |
| if (psc->is_different_gpu && (&pcp->base != &dummyContext) && pcp->base.psc == &psc->base) |
| psc->image->blitImage(pcp->driContext, |
| front->linear_buffer, |
| front->image, |
| 0, 0, front->width, |
| front->height, |
| 0, 0, front->width, |
| front->height, __BLIT_FLAG_FLUSH); |
| dri3_copy_drawable(priv, priv->base.xDrawable, front->pixmap); |
| } |
| |
| /** |
| * 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 glx_context *gc; |
| struct dri3_drawable *pdraw = loaderPrivate; |
| struct dri3_screen *psc; |
| |
| if (!pdraw) |
| return; |
| |
| if (!pdraw->base.psc) |
| return; |
| |
| psc = (struct dri3_screen *) pdraw->base.psc; |
| |
| (void) __glXInitialize(psc->base.dpy); |
| |
| gc = __glXGetCurrentContext(); |
| |
| dri3_flush(psc, pdraw, __DRI2_FLUSH_DRAWABLE, __DRI2_THROTTLE_FLUSHFRONT); |
| |
| dri3_wait_gl(gc); |
| } |
| |
| static uint32_t |
| dri3_cpp_for_format(uint32_t format) { |
| switch (format) { |
| case __DRI_IMAGE_FORMAT_R8: |
| return 1; |
| case __DRI_IMAGE_FORMAT_RGB565: |
| case __DRI_IMAGE_FORMAT_GR88: |
| return 2; |
| case __DRI_IMAGE_FORMAT_XRGB8888: |
| case __DRI_IMAGE_FORMAT_ARGB8888: |
| case __DRI_IMAGE_FORMAT_ABGR8888: |
| case __DRI_IMAGE_FORMAT_XBGR8888: |
| case __DRI_IMAGE_FORMAT_XRGB2101010: |
| case __DRI_IMAGE_FORMAT_ARGB2101010: |
| case __DRI_IMAGE_FORMAT_SARGB8: |
| return 4; |
| case __DRI_IMAGE_FORMAT_NONE: |
| default: |
| return 0; |
| } |
| } |
| |
| |
| /** dri3_alloc_render_buffer |
| * |
| * Use the driver createImage function to construct a __DRIimage, then |
| * get a file descriptor for that and create an X pixmap from that |
| * |
| * Allocate an xshmfence for synchronization |
| */ |
| static struct dri3_buffer * |
| dri3_alloc_render_buffer(struct glx_screen *glx_screen, Drawable draw, |
| unsigned int format, int width, int height, int depth) |
| { |
| struct dri3_screen *psc = (struct dri3_screen *) glx_screen; |
| Display *dpy = glx_screen->dpy; |
| struct dri3_buffer *buffer; |
| __DRIimage *pixmap_buffer; |
| xcb_connection_t *c = XGetXCBConnection(dpy); |
| xcb_pixmap_t pixmap; |
| xcb_sync_fence_t sync_fence; |
| struct xshmfence *shm_fence; |
| int buffer_fd, fence_fd; |
| int stride; |
| |
| /* Create an xshmfence object and |
| * prepare to send that to the X server |
| */ |
| |
| fence_fd = xshmfence_alloc_shm(); |
| if (fence_fd < 0) { |
| ErrorMessageF("DRI3 Fence object allocation failure %s\n", strerror(errno)); |
| return NULL; |
| } |
| shm_fence = xshmfence_map_shm(fence_fd); |
| if (shm_fence == NULL) { |
| ErrorMessageF("DRI3 Fence object map failure %s\n", strerror(errno)); |
| goto no_shm_fence; |
| } |
| |
| /* Allocate the image from the driver |
| */ |
| buffer = calloc(1, sizeof (struct dri3_buffer)); |
| if (!buffer) |
| goto no_buffer; |
| |
| buffer->cpp = dri3_cpp_for_format(format); |
| if (!buffer->cpp) { |
| ErrorMessageF("DRI3 buffer format %d invalid\n", format); |
| goto no_image; |
| } |
| |
| if (!psc->is_different_gpu) { |
| buffer->image = (*psc->image->createImage) (psc->driScreen, |
| width, height, |
| format, |
| __DRI_IMAGE_USE_SHARE | |
| __DRI_IMAGE_USE_SCANOUT, |
| buffer); |
| pixmap_buffer = buffer->image; |
| |
| if (!buffer->image) { |
| ErrorMessageF("DRI3 gpu image creation failure\n"); |
| goto no_image; |
| } |
| } else { |
| buffer->image = (*psc->image->createImage) (psc->driScreen, |
| width, height, |
| format, |
| 0, |
| buffer); |
| |
| if (!buffer->image) { |
| ErrorMessageF("DRI3 other gpu image creation failure\n"); |
| goto no_image; |
| } |
| |
| buffer->linear_buffer = (*psc->image->createImage) (psc->driScreen, |
| width, height, |
| format, |
| __DRI_IMAGE_USE_SHARE | |
| __DRI_IMAGE_USE_LINEAR, |
| buffer); |
| pixmap_buffer = buffer->linear_buffer; |
| |
| if (!buffer->linear_buffer) { |
| ErrorMessageF("DRI3 gpu linear image creation failure\n"); |
| goto no_linear_buffer; |
| } |
| } |
| |
| /* X wants the stride, so ask the image for it |
| */ |
| if (!(*psc->image->queryImage)(pixmap_buffer, __DRI_IMAGE_ATTRIB_STRIDE, &stride)) { |
| ErrorMessageF("DRI3 get image stride failed\n"); |
| goto no_buffer_attrib; |
| } |
| |
| buffer->pitch = stride; |
| |
| if (!(*psc->image->queryImage)(pixmap_buffer, __DRI_IMAGE_ATTRIB_FD, &buffer_fd)) { |
| ErrorMessageF("DRI3 get image FD failed\n"); |
| goto no_buffer_attrib; |
| } |
| |
| xcb_dri3_pixmap_from_buffer(c, |
| (pixmap = xcb_generate_id(c)), |
| draw, |
| buffer->size, |
| width, height, buffer->pitch, |
| depth, buffer->cpp * 8, |
| buffer_fd); |
| |
| xcb_dri3_fence_from_fd(c, |
| pixmap, |
| (sync_fence = xcb_generate_id(c)), |
| false, |
| fence_fd); |
| |
| buffer->pixmap = pixmap; |
| buffer->own_pixmap = true; |
| buffer->sync_fence = sync_fence; |
| buffer->shm_fence = shm_fence; |
| buffer->width = width; |
| buffer->height = height; |
| |
| /* Mark the buffer as idle |
| */ |
| dri3_fence_set(buffer); |
| |
| return buffer; |
| |
| no_buffer_attrib: |
| (*psc->image->destroyImage)(pixmap_buffer); |
| no_linear_buffer: |
| if (psc->is_different_gpu) |
| (*psc->image->destroyImage)(buffer->image); |
| no_image: |
| free(buffer); |
| no_buffer: |
| xshmfence_unmap_shm(shm_fence); |
| no_shm_fence: |
| close(fence_fd); |
| ErrorMessageF("DRI3 alloc_render_buffer failed\n"); |
| return NULL; |
| } |
| |
| /** dri3_free_render_buffer |
| * |
| * Free everything associated with one render buffer including pixmap, fence |
| * stuff and the driver image |
| */ |
| static void |
| dri3_free_render_buffer(struct dri3_drawable *pdraw, struct dri3_buffer *buffer) |
| { |
| struct dri3_screen *psc = (struct dri3_screen *) pdraw->base.psc; |
| xcb_connection_t *c = XGetXCBConnection(pdraw->base.psc->dpy); |
| |
| if (buffer->own_pixmap) |
| xcb_free_pixmap(c, buffer->pixmap); |
| xcb_sync_destroy_fence(c, buffer->sync_fence); |
| xshmfence_unmap_shm(buffer->shm_fence); |
| (*psc->image->destroyImage)(buffer->image); |
| if (buffer->linear_buffer) |
| (*psc->image->destroyImage)(buffer->linear_buffer); |
| free(buffer); |
| } |
| |
| |
| /** dri3_flush_present_events |
| * |
| * Process any present events that have been received from the X server |
| */ |
| static void |
| dri3_flush_present_events(struct dri3_drawable *priv) |
| { |
| xcb_connection_t *c = XGetXCBConnection(priv->base.psc->dpy); |
| |
| /* Check to see if any configuration changes have occurred |
| * since we were last invoked |
| */ |
| if (priv->special_event) { |
| xcb_generic_event_t *ev; |
| |
| while ((ev = xcb_poll_for_special_event(c, priv->special_event)) != NULL) { |
| xcb_present_generic_event_t *ge = (void *) ev; |
| dri3_handle_present_event(priv, ge); |
| } |
| } |
| } |
| |
| /** dri3_update_drawable |
| * |
| * Called the first time we use the drawable and then |
| * after we receive present configure notify events to |
| * track the geometry of the drawable |
| */ |
| static int |
| dri3_update_drawable(__DRIdrawable *driDrawable, void *loaderPrivate) |
| { |
| struct dri3_drawable *priv = loaderPrivate; |
| xcb_connection_t *c = XGetXCBConnection(priv->base.psc->dpy); |
| |
| /* First time through, go get the current drawable geometry |
| */ |
| if (priv->width == 0 || priv->height == 0 || priv->depth == 0) { |
| xcb_get_geometry_cookie_t geom_cookie; |
| xcb_get_geometry_reply_t *geom_reply; |
| xcb_void_cookie_t cookie; |
| xcb_generic_error_t *error; |
| xcb_present_query_capabilities_cookie_t present_capabilities_cookie; |
| xcb_present_query_capabilities_reply_t *present_capabilities_reply; |
| |
| |
| /* Try to select for input on the window. |
| * |
| * If the drawable is a window, this will get our events |
| * delivered. |
| * |
| * Otherwise, we'll get a BadWindow error back from this request which |
| * will let us know that the drawable is a pixmap instead. |
| */ |
| |
| |
| cookie = xcb_present_select_input_checked(c, |
| (priv->eid = xcb_generate_id(c)), |
| priv->base.xDrawable, |
| XCB_PRESENT_EVENT_MASK_CONFIGURE_NOTIFY| |
| XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY| |
| XCB_PRESENT_EVENT_MASK_IDLE_NOTIFY); |
| |
| present_capabilities_cookie = xcb_present_query_capabilities(c, priv->base.xDrawable); |
| |
| /* Create an XCB event queue to hold present events outside of the usual |
| * application event queue |
| */ |
| priv->special_event = xcb_register_for_special_xge(c, |
| &xcb_present_id, |
| priv->eid, |
| priv->stamp); |
| |
| geom_cookie = xcb_get_geometry(c, priv->base.xDrawable); |
| |
| geom_reply = xcb_get_geometry_reply(c, geom_cookie, NULL); |
| |
| if (!geom_reply) |
| return false; |
| |
| priv->width = geom_reply->width; |
| priv->height = geom_reply->height; |
| priv->depth = geom_reply->depth; |
| priv->is_pixmap = false; |
| |
| free(geom_reply); |
| |
| /* Check to see if our select input call failed. If it failed with a |
| * BadWindow error, then assume the drawable is a pixmap. Destroy the |
| * special event queue created above and mark the drawable as a pixmap |
| */ |
| |
| error = xcb_request_check(c, cookie); |
| |
| present_capabilities_reply = xcb_present_query_capabilities_reply(c, |
| present_capabilities_cookie, |
| NULL); |
| |
| if (present_capabilities_reply) { |
| priv->present_capabilities = present_capabilities_reply->capabilities; |
| free(present_capabilities_reply); |
| } else |
| priv->present_capabilities = 0; |
| |
| if (error) { |
| if (error->error_code != BadWindow) { |
| free(error); |
| return false; |
| } |
| priv->is_pixmap = true; |
| xcb_unregister_for_special_event(c, priv->special_event); |
| priv->special_event = NULL; |
| } |
| } |
| dri3_flush_present_events(priv); |
| return true; |
| } |
| |
| /* the DRIimage createImage function takes __DRI_IMAGE_FORMAT codes, while |
| * the createImageFromFds call takes __DRI_IMAGE_FOURCC codes. To avoid |
| * complete confusion, just deal in __DRI_IMAGE_FORMAT codes for now and |
| * translate to __DRI_IMAGE_FOURCC codes in the call to createImageFromFds |
| */ |
| static int |
| image_format_to_fourcc(int format) |
| { |
| |
| /* Convert from __DRI_IMAGE_FORMAT to __DRI_IMAGE_FOURCC (sigh) */ |
| switch (format) { |
| case __DRI_IMAGE_FORMAT_SARGB8: return __DRI_IMAGE_FOURCC_SARGB8888; |
| case __DRI_IMAGE_FORMAT_RGB565: return __DRI_IMAGE_FOURCC_RGB565; |
| case __DRI_IMAGE_FORMAT_XRGB8888: return __DRI_IMAGE_FOURCC_XRGB8888; |
| case __DRI_IMAGE_FORMAT_ARGB8888: return __DRI_IMAGE_FOURCC_ARGB8888; |
| case __DRI_IMAGE_FORMAT_ABGR8888: return __DRI_IMAGE_FOURCC_ABGR8888; |
| case __DRI_IMAGE_FORMAT_XBGR8888: return __DRI_IMAGE_FOURCC_XBGR8888; |
| } |
| return 0; |
| } |
| |
| /** dri3_get_pixmap_buffer |
| * |
| * Get the DRM object for a pixmap from the X server and |
| * wrap that with a __DRIimage structure using createImageFromFds |
| */ |
| static struct dri3_buffer * |
| dri3_get_pixmap_buffer(__DRIdrawable *driDrawable, |
| unsigned int format, |
| enum dri3_buffer_type buffer_type, |
| void *loaderPrivate) |
| { |
| struct dri3_drawable *pdraw = loaderPrivate; |
| int buf_id = dri3_pixmap_buf_id(buffer_type); |
| struct dri3_buffer *buffer = pdraw->buffers[buf_id]; |
| Pixmap pixmap; |
| xcb_dri3_buffer_from_pixmap_cookie_t bp_cookie; |
| xcb_dri3_buffer_from_pixmap_reply_t *bp_reply; |
| int *fds; |
| Display *dpy; |
| struct dri3_screen *psc; |
| xcb_connection_t *c; |
| xcb_sync_fence_t sync_fence; |
| struct xshmfence *shm_fence; |
| int fence_fd; |
| __DRIimage *image_planar; |
| int stride, offset; |
| |
| if (buffer) |
| return buffer; |
| |
| pixmap = pdraw->base.xDrawable; |
| psc = (struct dri3_screen *) pdraw->base.psc; |
| dpy = psc->base.dpy; |
| c = XGetXCBConnection(dpy); |
| |
| buffer = calloc(1, sizeof (struct dri3_buffer)); |
| if (!buffer) |
| goto no_buffer; |
| |
| fence_fd = xshmfence_alloc_shm(); |
| if (fence_fd < 0) |
| goto no_fence; |
| shm_fence = xshmfence_map_shm(fence_fd); |
| if (shm_fence == NULL) { |
| close (fence_fd); |
| goto no_fence; |
| } |
| |
| xcb_dri3_fence_from_fd(c, |
| pixmap, |
| (sync_fence = xcb_generate_id(c)), |
| false, |
| fence_fd); |
| |
| /* Get an FD for the pixmap object |
| */ |
| bp_cookie = xcb_dri3_buffer_from_pixmap(c, pixmap); |
| bp_reply = xcb_dri3_buffer_from_pixmap_reply(c, bp_cookie, NULL); |
| if (!bp_reply) |
| goto no_image; |
| fds = xcb_dri3_buffer_from_pixmap_reply_fds(c, bp_reply); |
| |
| stride = bp_reply->stride; |
| offset = 0; |
| |
| /* createImageFromFds creates a wrapper __DRIimage structure which |
| * can deal with multiple planes for things like Yuv images. So, once |
| * we've gotten the planar wrapper, pull the single plane out of it and |
| * discard the wrapper. |
| */ |
| image_planar = (*psc->image->createImageFromFds) (psc->driScreen, |
| bp_reply->width, |
| bp_reply->height, |
| image_format_to_fourcc(format), |
| fds, 1, |
| &stride, &offset, buffer); |
| close(fds[0]); |
| if (!image_planar) |
| goto no_image; |
| |
| buffer->image = (*psc->image->fromPlanar)(image_planar, 0, buffer); |
| |
| (*psc->image->destroyImage)(image_planar); |
| |
| if (!buffer->image) |
| goto no_image; |
| |
| buffer->pixmap = pixmap; |
| buffer->own_pixmap = false; |
| buffer->width = bp_reply->width; |
| buffer->height = bp_reply->height; |
| buffer->buffer_type = buffer_type; |
| buffer->shm_fence = shm_fence; |
| buffer->sync_fence = sync_fence; |
| |
| pdraw->buffers[buf_id] = buffer; |
| return buffer; |
| |
| no_image: |
| xcb_sync_destroy_fence(c, sync_fence); |
| xshmfence_unmap_shm(shm_fence); |
| no_fence: |
| free(buffer); |
| no_buffer: |
| return NULL; |
| } |
| |
| /** dri3_find_back |
| * |
| * Find an idle back buffer. If there isn't one, then |
| * wait for a present idle notify event from the X server |
| */ |
| static int |
| dri3_find_back(xcb_connection_t *c, struct dri3_drawable *priv) |
| { |
| int b; |
| xcb_generic_event_t *ev; |
| xcb_present_generic_event_t *ge; |
| |
| for (;;) { |
| for (b = 0; b < priv->num_back; b++) { |
| int id = DRI3_BACK_ID((b + priv->cur_back) % priv->num_back); |
| struct dri3_buffer *buffer = priv->buffers[id]; |
| |
| if (!buffer || !buffer->busy) { |
| priv->cur_back = id; |
| return id; |
| } |
| } |
| xcb_flush(c); |
| ev = xcb_wait_for_special_event(c, priv->special_event); |
| if (!ev) |
| return -1; |
| ge = (void *) ev; |
| dri3_handle_present_event(priv, ge); |
| } |
| } |
| |
| /** dri3_get_buffer |
| * |
| * Find a front or back buffer, allocating new ones as necessary |
| */ |
| static struct dri3_buffer * |
| dri3_get_buffer(__DRIdrawable *driDrawable, |
| unsigned int format, |
| enum dri3_buffer_type buffer_type, |
| void *loaderPrivate) |
| { |
| struct dri3_context *pcp = (struct dri3_context *) __glXGetCurrentContext(); |
| struct dri3_drawable *priv = loaderPrivate; |
| struct dri3_screen *psc = (struct dri3_screen *) priv->base.psc; |
| xcb_connection_t *c = XGetXCBConnection(priv->base.psc->dpy); |
| struct dri3_buffer *buffer; |
| int buf_id; |
| |
| if (buffer_type == dri3_buffer_back) { |
| buf_id = dri3_find_back(c, priv); |
| |
| if (buf_id < 0) |
| return NULL; |
| } else { |
| buf_id = DRI3_FRONT_ID; |
| } |
| |
| buffer = priv->buffers[buf_id]; |
| |
| /* Allocate a new buffer if there isn't an old one, or if that |
| * old one is the wrong size |
| */ |
| if (!buffer || buffer->width != priv->width || buffer->height != priv->height) { |
| struct dri3_buffer *new_buffer; |
| |
| /* Allocate the new buffers |
| */ |
| new_buffer = dri3_alloc_render_buffer(priv->base.psc, |
| priv->base.xDrawable, |
| format, priv->width, priv->height, priv->depth); |
| if (!new_buffer) |
| return NULL; |
| |
| /* When resizing, copy the contents of the old buffer, waiting for that |
| * copy to complete using our fences before proceeding |
| */ |
| switch (buffer_type) { |
| case dri3_buffer_back: |
| if (buffer) { |
| if (!buffer->linear_buffer) { |
| dri3_fence_reset(c, new_buffer); |
| dri3_fence_await(c, buffer); |
| dri3_copy_area(c, |
| buffer->pixmap, |
| new_buffer->pixmap, |
| dri3_drawable_gc(priv), |
| 0, 0, 0, 0, priv->width, priv->height); |
| dri3_fence_trigger(c, new_buffer); |
| } else if ((&pcp->base != &dummyContext) && pcp->base.psc == &psc->base) { |
| psc->image->blitImage(pcp->driContext, |
| new_buffer->image, |
| buffer->image, |
| 0, 0, priv->width, |
| priv->height, |
| 0, 0, priv->width, |
| priv->height, 0); |
| } |
| dri3_free_render_buffer(priv, buffer); |
| } |
| break; |
| case dri3_buffer_front: |
| dri3_fence_reset(c, new_buffer); |
| dri3_copy_area(c, |
| priv->base.xDrawable, |
| new_buffer->pixmap, |
| dri3_drawable_gc(priv), |
| 0, 0, 0, 0, priv->width, priv->height); |
| dri3_fence_trigger(c, new_buffer); |
| |
| if (new_buffer->linear_buffer && (&pcp->base != &dummyContext) && pcp->base.psc == &psc->base) { |
| dri3_fence_await(c, new_buffer); |
| psc->image->blitImage(pcp->driContext, |
| new_buffer->image, |
| new_buffer->linear_buffer, |
| 0, 0, priv->width, |
| priv->height, |
| 0, 0, priv->width, |
| priv->height, 0); |
| } |
| break; |
| } |
| buffer = new_buffer; |
| buffer->buffer_type = buffer_type; |
| priv->buffers[buf_id] = buffer; |
| } |
| dri3_fence_await(c, buffer); |
| |
| /* Return the requested buffer */ |
| return buffer; |
| } |
| |
| /** dri3_free_buffers |
| * |
| * Free the front bufffer or all of the back buffers. Used |
| * when the application changes which buffers it needs |
| */ |
| static void |
| dri3_free_buffers(__DRIdrawable *driDrawable, |
| enum dri3_buffer_type buffer_type, |
| void *loaderPrivate) |
| { |
| struct dri3_drawable *priv = loaderPrivate; |
| struct dri3_buffer *buffer; |
| int first_id; |
| int n_id; |
| int buf_id; |
| |
| switch (buffer_type) { |
| case dri3_buffer_back: |
| first_id = DRI3_BACK_ID(0); |
| n_id = DRI3_MAX_BACK; |
| break; |
| case dri3_buffer_front: |
| first_id = DRI3_FRONT_ID; |
| n_id = 1; |
| } |
| |
| for (buf_id = first_id; buf_id < first_id + n_id; buf_id++) { |
| buffer = priv->buffers[buf_id]; |
| if (buffer) { |
| dri3_free_render_buffer(priv, buffer); |
| priv->buffers[buf_id] = NULL; |
| } |
| } |
| } |
| |
| /** dri3_get_buffers |
| * |
| * The published buffer allocation API. |
| * Returns all of the necessary buffers, allocating |
| * as needed. |
| */ |
| static int |
| dri3_get_buffers(__DRIdrawable *driDrawable, |
| unsigned int format, |
| uint32_t *stamp, |
| void *loaderPrivate, |
| uint32_t buffer_mask, |
| struct __DRIimageList *buffers) |
| { |
| struct dri3_drawable *priv = loaderPrivate; |
| struct dri3_screen *psc = (struct dri3_screen *) priv->base.psc; |
| struct dri3_buffer *front, *back; |
| |
| buffers->image_mask = 0; |
| buffers->front = NULL; |
| buffers->back = NULL; |
| |
| front = NULL; |
| back = NULL; |
| |
| if (!dri3_update_drawable(driDrawable, loaderPrivate)) |
| return false; |
| |
| /* pixmaps always have front buffers */ |
| if (priv->is_pixmap) |
| buffer_mask |= __DRI_IMAGE_BUFFER_FRONT; |
| |
| if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) { |
| /* All pixmaps are owned by the server gpu. |
| * When we use a different gpu, we can't use the pixmap |
| * as buffer since it is potentially tiled a way |
| * our device can't understand. In this case, use |
| * a fake front buffer. Hopefully the pixmap |
| * content will get synced with the fake front |
| * buffer. |
| */ |
| if (priv->is_pixmap && !psc->is_different_gpu) |
| front = dri3_get_pixmap_buffer(driDrawable, |
| format, |
| dri3_buffer_front, |
| loaderPrivate); |
| else |
| front = dri3_get_buffer(driDrawable, |
| format, |
| dri3_buffer_front, |
| loaderPrivate); |
| |
| if (!front) |
| return false; |
| } else { |
| dri3_free_buffers(driDrawable, dri3_buffer_front, loaderPrivate); |
| priv->have_fake_front = 0; |
| } |
| |
| if (buffer_mask & __DRI_IMAGE_BUFFER_BACK) { |
| back = dri3_get_buffer(driDrawable, |
| format, |
| dri3_buffer_back, |
| loaderPrivate); |
| if (!back) |
| return false; |
| priv->have_back = 1; |
| } else { |
| dri3_free_buffers(driDrawable, dri3_buffer_back, loaderPrivate); |
| priv->have_back = 0; |
| } |
| |
| if (front) { |
| buffers->image_mask |= __DRI_IMAGE_BUFFER_FRONT; |
| buffers->front = front->image; |
| priv->have_fake_front = psc->is_different_gpu || !priv->is_pixmap; |
| } |
| |
| if (back) { |
| buffers->image_mask |= __DRI_IMAGE_BUFFER_BACK; |
| buffers->back = back->image; |
| } |
| |
| priv->stamp = stamp; |
| |
| return true; |
| } |
| |
| /* The image loader extension record for DRI3 |
| */ |
| static const __DRIimageLoaderExtension imageLoaderExtension = { |
| .base = { __DRI_IMAGE_LOADER, 1 }, |
| |
| .getBuffers = dri3_get_buffers, |
| .flushFrontBuffer = dri3_flush_front_buffer, |
| }; |
| |
| const __DRIuseInvalidateExtension dri3UseInvalidate = { |
| .base = { __DRI_USE_INVALIDATE, 1 } |
| }; |
| |
| static const __DRIextension *loader_extensions[] = { |
| &imageLoaderExtension.base, |
| &systemTimeExtension.base, |
| &dri3UseInvalidate.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_context *pcp = (struct dri3_context *) __glXGetCurrentContext(); |
| struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; |
| struct dri3_screen *psc = (struct dri3_screen *) priv->base.psc; |
| Display *dpy = priv->base.psc->dpy; |
| xcb_connection_t *c = XGetXCBConnection(dpy); |
| struct dri3_buffer *back; |
| int64_t ret = 0; |
| uint32_t options = XCB_PRESENT_OPTION_NONE; |
| |
| unsigned flags = __DRI2_FLUSH_DRAWABLE; |
| if (flush) |
| flags |= __DRI2_FLUSH_CONTEXT; |
| dri3_flush(psc, priv, flags, __DRI2_THROTTLE_SWAPBUFFER); |
| |
| back = priv->buffers[DRI3_BACK_ID(priv->cur_back)]; |
| if (psc->is_different_gpu && back) { |
| /* Update the linear buffer before presenting the pixmap */ |
| psc->image->blitImage(pcp->driContext, |
| back->linear_buffer, |
| back->image, |
| 0, 0, back->width, |
| back->height, |
| 0, 0, back->width, |
| back->height, __BLIT_FLAG_FLUSH); |
| /* Update the fake front */ |
| if (priv->have_fake_front) |
| psc->image->blitImage(pcp->driContext, |
| priv->buffers[DRI3_FRONT_ID]->image, |
| back->image, |
| 0, 0, priv->width, |
| priv->height, |
| 0, 0, priv->width, |
| priv->height, __BLIT_FLAG_FLUSH); |
| } |
| |
| dri3_flush_present_events(priv); |
| |
| if (back && !priv->is_pixmap) { |
| dri3_fence_reset(c, back); |
| |
| /* Compute when we want the frame shown by taking the last known successful |
| * MSC and adding in a swap interval for each outstanding swap request. |
| * target_msc=divisor=remainder=0 means "Use glXSwapBuffers() semantic" |
| */ |
| ++priv->send_sbc; |
| if (target_msc == 0 && divisor == 0 && remainder == 0) |
| target_msc = priv->msc + priv->swap_interval * (priv->send_sbc - priv->recv_sbc); |
| else if (divisor == 0 && remainder > 0) { |
| /* From the GLX_OML_sync_control spec: |
| * |
| * "If <divisor> = 0, the swap will occur when MSC becomes |
| * greater than or equal to <target_msc>." |
| * |
| * Note that there's no mention of the remainder. The Present extension |
| * throws BadValue for remainder != 0 with divisor == 0, so just drop |
| * the passed in value. |
| */ |
| remainder = 0; |
| } |
| |
| /* From the GLX_EXT_swap_control spec: |
| * |
| * "If <interval> is set to a value of 0, buffer swaps are not |
| * synchronized to a video frame." |
| * |
| * Implementation note: It is possible to enable triple buffering behaviour |
| * by not using XCB_PRESENT_OPTION_ASYNC, but this should not be the default. |
| */ |
| if (priv->swap_interval == 0) |
| options |= XCB_PRESENT_OPTION_ASYNC; |
| |
| back->busy = 1; |
| back->last_swap = priv->send_sbc; |
| xcb_present_pixmap(c, |
| priv->base.xDrawable, |
| back->pixmap, |
| (uint32_t) priv->send_sbc, |
| 0, /* valid */ |
| 0, /* update */ |
| 0, /* x_off */ |
| 0, /* y_off */ |
| None, /* target_crtc */ |
| None, |
| back->sync_fence, |
| options, |
| target_msc, |
| divisor, |
| remainder, 0, NULL); |
| ret = (int64_t) priv->send_sbc; |
| |
| /* If there's a fake front, then copy the source back buffer |
| * to the fake front to keep it up to date. This needs |
| * to reset the fence and make future users block until |
| * the X server is done copying the bits |
| */ |
| if (priv->have_fake_front && !psc->is_different_gpu) { |
| dri3_fence_reset(c, priv->buffers[DRI3_FRONT_ID]); |
| dri3_copy_area(c, |
| back->pixmap, |
| priv->buffers[DRI3_FRONT_ID]->pixmap, |
| dri3_drawable_gc(priv), |
| 0, 0, 0, 0, priv->width, priv->height); |
| dri3_fence_trigger(c, priv->buffers[DRI3_FRONT_ID]); |
| } |
| xcb_flush(c); |
| if (priv->stamp) |
| ++(*priv->stamp); |
| } |
| |
| (*psc->f->invalidate)(priv->driDrawable); |
| |
| return ret; |
| } |
| |
| static int |
| dri3_get_buffer_age(__GLXDRIdrawable *pdraw) |
| { |
| xcb_connection_t *c = XGetXCBConnection(pdraw->psc->dpy); |
| struct dri3_drawable *priv = (struct dri3_drawable *) pdraw; |
| int back_id = DRI3_BACK_ID(dri3_find_back(c, priv)); |
| |
| if (back_id < 0 || !priv->buffers[back_id]) |
| return 0; |
| |
| if (priv->buffers[back_id]->last_swap != 0) |
| return priv->send_sbc - priv->buffers[back_id]->last_swap + 1; |
| else |
| return 0; |
| } |
| |
| /** dri3_open |
| * |
| * Wrapper around xcb_dri3_open |
| */ |
| static int |
| dri3_open(Display *dpy, |
| Window root, |
| CARD32 provider) |
| { |
| xcb_dri3_open_cookie_t cookie; |
| xcb_dri3_open_reply_t *reply; |
| xcb_connection_t *c = XGetXCBConnection(dpy); |
| int fd; |
| |
| cookie = xcb_dri3_open(c, |
| root, |
| provider); |
| |
| reply = xcb_dri3_open_reply(c, cookie, NULL); |
| if (!reply) |
| return -1; |
| |
| if (reply->nfd != 1) { |
| free(reply); |
| return -1; |
| } |
| |
| fd = xcb_dri3_open_reply_fds(c, reply)[0]; |
| fcntl(fd, F_SETFD, FD_CLOEXEC); |
| |
| return fd; |
| } |
| |
| |
| /** 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) |
| { |
| 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; |
| } |
| |
| priv->swap_interval = interval; |
| dri3_update_num_back(priv); |
| |
| return 0; |
| } |
| |
| /** dri3_get_swap_interval |
| * |
| * Return the stored swap interval |
| */ |
| static int |
| dri3_get_swap_interval(__GLXDRIdrawable *pdraw) |
| { |
| 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->driDrawable); |
| |
| XSync(dpy, false); |
| |
| (*psc->texBuffer->setTexBuffer2) (pcp->driContext, |
| pdraw->base.textureTarget, |
| pdraw->base.textureFormat, |
| pdraw->driDrawable); |
| } |
| } |
| |
| 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->driDrawable); |
| } |
| } |
| |
| 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, |
| }; |
| |
| /** 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_GLES2)) != 0) |
| __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"); |
| } |
| } |
| } |
| |
| 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; |
| |
| 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 = dri3_open(priv->dpy, 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, 0); |
| 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->texBuffer || psc->texBuffer->base.version < 2 || |
| !psc->texBuffer->setTexBuffer2 |
| )) { |
| ErrorMessageF("Version 2 or later of texBuffer extension not found\n"); |
| goto handle_error; |
| } |
| |
| 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; |
| __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; |
| __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; |
| |
| 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 */ |