Added userspace side library of drm modesettings
hmm apperently I forgot to attach a file
From 510bcb9d2f875aa856c96985057667da0774f696 Mon Sep 17 00:00:00 2001
From: Jakob Bornecrantz <[EMAIL PROTECTED]>
Date: Tue, 20 Mar 2007 20:15:47 +0100
Subject: [PATCH] Added userspace side library of drm modesettings
---
libdrm/Makefile.am | 4
libdrm/xf86drmMode.c | 404 ++++++++++++++++++++++++++++++++++++++++++++++++++
libdrm/xf86drmMode.h | 297 +++++++++++++++++++++++++++++++++++++
3 files changed, 703 insertions(+), 2 deletions(-)
diff --git a/libdrm/Makefile.am b/libdrm/Makefile.am
index e7e07e4..24c3203 100644
--- a/libdrm/Makefile.am
+++ b/libdrm/Makefile.am
@@ -23,9 +23,9 @@ libdrm_ladir = $(libdir)
libdrm_la_LDFLAGS = -version-number 2:3:0 -no-undefined
AM_CFLAGS = -I$(top_srcdir)/shared-core
-libdrm_la_SOURCES = xf86drm.c xf86drmHash.c xf86drmRandom.c xf86drmSL.c
+libdrm_la_SOURCES = xf86drm.c xf86drmHash.c xf86drmRandom.c xf86drmSL.c
xf86drmMode.c
libdrmincludedir = ${includedir}
-libdrminclude_HEADERS = xf86drm.h xf86mm.h
+libdrminclude_HEADERS = xf86drm.h xf86mm.h xf86drmMode.h
EXTRA_DIST = ChangeLog TODO
diff --git a/libdrm/xf86drmMode.c b/libdrm/xf86drmMode.c
new file mode 100644
index 0000000..4edb247
--- /dev/null
+++ b/libdrm/xf86drmMode.c
@@ -0,0 +1,404 @@
+/*
+ * \file xf86drmMode.c
+ * Header for DRM modesetting interface.
+ *
+ * \author Jakob Bornecrantz <[EMAIL PROTECTED]>
+ *
+ * \par Acknowledgements:
+ * Feb 2007, Dave Airlie <[EMAIL PROTECTED]>
+ */
+
+/*
+ * Copyright (c) <year> <copyright holders>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+/*
+ * TODO the types we are after are defined in diffrent headers on diffrent
+ * platforms find which headers to include to get uint32_t
+ */
+#include <stdint.h>
+
+#include "xf86drmMode.h"
+#include "xf86drm.h"
+#include <drm.h>
+
+/*
+ * Util functions
+ */
+
+static uint32_t* drmAllocCpy(unsigned int *array, int count)
+{
+ uint32_t *r;
+ int i;
+
+ if (!count || !array)
+ return 0;
+
+ if (!(r = drmMalloc(count*sizeof(*r))))
+ return 0;
+
+ for (i = 0; i < count; i++)
+ r[i] = array[i];
+
+ return r;
+}
+
+/*
+ * A couple of free functions.
+ */
+
+void drmModeFreeModeInfo(drmModeInfoPtr ptr)
+{
+ if (!ptr)
+ return;
+
+ drmFree(ptr->modeFlags);
+ drmFree(ptr);
+}
+
+void drmModeFreeResources(drmModeResPtr ptr)
+{
+ if (!ptr)
+ return;
+
+ drmFree(ptr->crtcs);
+ drmFree(ptr->outputs);
+ drmFree(ptr->modes);
+ drmFree(ptr);
+
+}
+
+void drmModeFreeFrameBufferInfo(drmModeFrameBufferInfoPtr ptr)
+{
+ if (!ptr)
+ return;
+
+ /* we might add more frees later. */
+ drmFree(ptr);
+}
+
+void drmModeFreeCrtcInfo(drmModeCrtcInfoPtr ptr)
+{
+ if (!ptr)
+ return;
+
+ drmFree(ptr->outputs);
+ drmFree(ptr->possibles);
+ drmFree(ptr);
+
+}
+
+void drmModeFreeOutputInfo(drmModeOutputInfoPtr ptr)
+{
+ if (!ptr)
+ return;
+
+ drmFree(ptr->crtcs);
+ drmFree(ptr->clones);
+ drmFree(ptr->modes);
+ drmFree(ptr);
+
+}
+
+/*
+ * ModeSetting functions.
+ */
+
+drmModeResPtr drmModeGetResources(int fd)
+{
+ drm_mode_card_res_t res;
+ int i;
+ drmModeResPtr r = 0;
+
+ res.count_crtcs = 0;
+ res.crtcs = 0;
+ res.count_outputs = 0;
+ res.outputs = 0;
+ res.count_modes = 0;
+ res.modes = 0;
+
+ if (ioctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res))
+ return 0;
+
+ if (res.count_crtcs)
+ res.crtcs = drmMalloc(res.count_crtcs*sizeof(*res.crtcs));
+
+ if (res.count_outputs)
+ res.outputs = drmMalloc(res.count_outputs*sizeof(*res.outputs));
+
+ if (res.count_modes)
+ res.modes = drmMalloc(res.count_modes*sizeof(*res.modes));
+
+ if (icotl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res))
+ goto err_allocs;
+
+ /*
+ * return
+ */
+
+
+ if (!(r = drmMalloc(sizeof(*r))))
+ return 0;
+
+ r->frameBufferId = res.frameBufferId;
+ r->count_crtcs = res.count_crtcs;
+ r->count_outputs = res.count_outputs;
+ r->count_modes = res.count_modes;
+ /* TODO we realy should test if these allocs fails. */
+ r->crtcs = drmAllocCpy(res.crtcs, res.count_crtcs);
+ r->outputs = drmAllocCpy(res.outputs, res.count_outputs);
+ r->modes = drmAllocCpy(res.modes, res.count_modes);
+
+ drmFree(res.crtcs);
+ drmFree(res.outputs);
+ drmFree(res.modes);
+
+ return r;
+
+err_allocs:
+ drmFree(res.crtcs);
+ drmFree(res.outputs);
+ drmFree(res.modes);
+
+ return 0;
+}
+
+int drmModeForceProbe(int fd, uint32_t outputId)
+{
+ /* TODO impl/keep? */
+}
+
+drmModeFrameBufferInfoPtr drmModeGetFramebufferInfo(int fd, uint32_t buf)
+{
+ drm_mode_get_fb_t info;
+ drmModeFrameBufferInfoPtr r;
+
+ if (ioctl(fd, DRM_IOCTL_MODE_GETFRAMEBUFFER, &info))
+ return 0;
+
+ if (!(r = drmMalloc(sizeof(*r))))
+ return 0;
+
+ r->minWidth = info.minWidth;
+ r->maxWidth = info.maxWidth;
+ r->minHeight = info.minHeight;
+ r->maxHeight = info.maxHeight;
+
+ return r;
+}
+
+int drmModeSetFrameBufferSize(int fd, uint32_t bufferId,
+ uint32_t width, uint32_t height)
+{
+ drm_mode_set_fb_t f;
+
+ f.bufferId = bufferId;
+ f.width = width;
+ f.height = height;
+
+ return ioctl(fd, DRM_IOCTL_MODE_SETFRAMEBUFFER, &f);
+}
+
+
+/*
+ * Crtc function.
+ */
+
+drmModeCrtcInfoPtr drmModeGetCrtcInfo(int fd, uint32_t crtcId)
+{
+ drm_mode_crtc_t crtc;
+ drmModeCrtcInfoPtr r;
+ int i = 0;
+
+ crtc.count_outputs = 0;
+ crtc.outputs = 0;
+ crtc.count_possibles = 0;
+ crtc.possibles = 0;
+
+ if (ioctl(fd, DRM_IOCTL_MODE_GETCRTC, &crtc))
+ return 0;
+
+ if (crtc.count_outputs)
+ crtc.outputs = drmMalloc(
+ crtc.count_outputs*sizeof(*crtc.outputs));
+
+ if (crtc.count_possibles)
+ crtc.possibles = drmMalloc(
+ crtc.count_possibles*sizeof(*crtc.possibles));
+
+ if (ioctl(fd, DRM_IOCTL_MODE_GETCRTC, &crtc))
+ goto err_allocs;
+
+ /*
+ * return
+ */
+
+ if (!(r = drmMalloc(sizeof(*r))))
+ return 0;
+
+ r->x = crtc.x;
+ r->y = crtc.y;
+ r->mode = crtc.mode;
+ r->width = crtc.width;
+ r->height = crtc.height;
+ r->bufferId = crtc.bufferId;
+ r->gamma_size = crtc.gamma_size;
+ r->count_outputs = crtc.count_outputs;
+ r->count_possibles = crtc.count_possibles;
+ /* TODO we realy should test if these alloc & cpy fails. */
+ r->outputs = drmAllocCpy(crtc.outputs, crtc.count_outputs);
+ r->possibles = drmAllocCpy(crtc.possibles, crtc.count_possibles);
+
+ drmFree(crtc.outputs);
+ drmFree(crtc.possibles);
+
+ return r;
+
+err_allocs:
+ drmFree(crtc.outputs);
+ drmFree(crtc.possibles);
+
+ return 0;
+}
+
+int drmModeSetCrtcConfig(
+ int fd, uint32_t crtcId, uint32_t bufferId,
+ uint32_t x, uint32_t y, uint32_t modeId,
+ uint32_t *outputs, int count
+ )
+{
+ drm_mode_crtc_t crtc;
+
+ crtc.count_outputs = 0;
+ crtc.outputs = 0;
+ crtc.count_possibles = 0;
+ crtc.possibles = 0;
+
+ crtc.x = x;
+ crtc.y = y;
+ crtc.crtcId = crtcId;
+ crtc.bufferId = bufferId;
+ crtc.outputs = outputs;
+ crtc.count_outputs = count;
+
+ return ioctl(fd, DRM_IOCTL_MODE_SETCRTC, &crtc);
+}
+
+drmModeGammaTriplePtr drmModeGetCrtcGamma(int fd, uint32_t crtc, int *count)
+{
+ /* TODO impl */
+}
+
+int drmModeSetCrtcGamma(int fd, uint32_t crtcId,
+ drmModeGammaTriplePtr ptr, int count)
+{
+ /* TODO impl */
+}
+
+
+/*
+ * Output manipulation
+ */
+
+drmModeOutputInfoPtr drmModeGetOutputInfo(int fd, uint32_t outputId)
+{
+ drm_mode_get_output_t out;
+ drmModeOutputInfoPtr r = 0;
+
+ out.count_crtcs = 0;
+ out.crtcs = 0;
+ out.count_clones = 0;
+ out.clones = 0;
+ out.count_modes = 0;
+ out.modes = 0;
+
+ if (ioctl(fd, DRM_IOCTL_MODE_GETOUTPUT, &out))
+ return 0;
+
+ if (out.count_crtcs)
+ out.crtcs = drmMalloc(out.count_crtcs*sizeof(*out.crtcs));
+
+ if (out.count_clones)
+ out.clones = drmMalloc(out.count_clones*sizeof(*out.clones));
+
+ if (out.count_modes)
+ out.modes = drmMalloc(out.count_modes*sizeof(*out.modes));
+
+ if (icotl(fd, DRM_IOCTL_MODE_GETOUTPUT, &out))
+ goto err_allocs;
+
+ if(!(r = drmMalloc(sizeof(*r))))
+ return 0;
+
+ r->connection = out.connection;
+ r->width = out.width;
+ r->height = out.height;
+ r->subpixel = out.subpixel;
+ r->count_crtcs = out.count_crtcs;
+ r->count_clones = out.count_clones;
+ r->count_modes = out.count_modes;
+ /* TODO we should test if these alloc & cpy fails. */
+ r->crtcs = drmAllocCpy(out.crtcs, out.count_crtcs);
+ r->clones = drmAllocCpy(out.clones, out.count_clones);
+ r->modes = drmAllocCpy(out.modes, out.count_modes);
+
+ return r;
+
+err_allocs:
+ drmFree(out.crtcs);
+ drmFree(out.clones);
+ drmFree(out.modes);
+
+ return 0;
+}
+
+uint32_t drmModeCreateMode(int fd, drmModeInfoPtr modeInfo)
+{
+ /* TODO impl */
+}
+
+int drmModeDestroyMode(int fd, uint32_t modeId)
+{
+ return ioctl(fd, DRM_IOCTL_MODE_DESMODE, modeId);
+}
+
+int drmModeAddOutputMode(int fd, uint32_t outputId, uint32_t modeId)
+{
+
+ drm_mode_outputmode_t res;
+
+ res.outputId = outputId;
+ res.modeId = modeId;
+
+ return ioctl(fd, DRM_IOCTL_MODE_ADDMODE, &res);
+}
+
+int drmModeDeleteOutputMode(int fd, uint32_t outputId, uint32_t modeId)
+{
+ drm_mode_outputmode_t res;
+
+ res.outputId = outputId;
+ res.modeId = modeId;
+
+ return ioctl(fd, DRM_IOCTL_MODE_DELMODE, &res);
+}
+
diff --git a/libdrm/xf86drmMode.h b/libdrm/xf86drmMode.h
new file mode 100644
index 0000000..54385c5
--- /dev/null
+++ b/libdrm/xf86drmMode.h
@@ -0,0 +1,297 @@
+/*
+ * \file xf86drmMode.h
+ * Header for DRM modesetting interface.
+ *
+ * \author Jakob Bornecrantz <[EMAIL PROTECTED]>
+ *
+ * \par Acknowledgements:
+ * Feb 2007, Dave Airlie <[EMAIL PROTECTED]>
+ */
+
+/*
+ * Copyright (c) <year> <copyright holders>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#include <drm.h>
+
+/*
+ * This is the interface for modesetting for drm.
+ *
+ * In order to use this interface you must include either <stdint.h> or another
+ * header defining uint32_t, int32_t and uint16_t.
+ *
+ * It aims to provide a randr compatible interface for modesettings in the
+ * kernel, the interface is also ment to be used by libraries like EGL.
+ *
+ * More information can be found in randrproto.txt which can be found here:
+ * http://gitweb.freedesktop.org/?p=xorg/proto/randrproto.git
+ *
+ * All framebuffer, crtc and output ids start at 1 while 0 is either an invalid
+ * parameter or used to indicate that the command should disconnect from the
+ * currently bound target, as with drmModeMapOutput.
+ *
+ * Currently only one framebuffer exist and has a id of 1, which is also the
+ * default framebuffer and should allways be avaible to the client, unless
+ * it is locked/used or any other limiting state is applied on it.
+ *
+ */
+
+typedef struct _drmModeInfo {
+
+ uint32_t id;
+
+ int count_name;
+ char *name;
+
+ uint16_t width, height;
+ uint32_t dotClock;
+
+ uint16_t hSyncStart, hSyncEnd, hTotal, hSkew;
+ uint16_t vSyncStart, vSyncEnd, vTotal;
+
+ int count_flags;
+ uint32_t *modeFlags;
+
+} drmModeInfo, *drmModeInfoPtr;
+
+typedef struct _drmModeGammaTriple {
+ uint16_t r, g, b;
+} drmModeGammaTriple, *drmModeGammaTriplePtr;
+
+typedef struct _drmModeRes {
+
+ uint32_t frameBufferId;
+
+ int count_crtcs;
+ uint32_t *crtcs;
+
+ int count_outputs;
+ uint32_t *outputs;
+
+ int count_modes;
+ uint32_t *modes;
+
+} drmModeRes, *drmModeResPtr;
+
+typedef struct _drmModeFrameBufferInfo {
+
+ uint32_t minWidth, maxWidth;
+ uint32_t minHeight, maxHeight;
+
+} drmModeFrameBufferInfo, *drmModeFrameBufferInfoPtr;
+
+typedef struct _drmModeCrtcInfo {
+
+ unsigned int bufferId; /**< Buffer currently connected to */
+
+ uint32_t x, y; /**< Position on the frameuffer */
+ uint32_t width, height;
+ uint32_t mode; /**< Current mode used */
+
+ int count_outputs;
+ uint32_t *outputs; /**< Outputs that are connected */
+
+ int count_possibles;
+ uint32_t *possibles; /**< Outputs that can be connected */
+
+ int gamma_size; /**< Number of gamma stops */
+
+} drmModeCrtcInfo, *drmModeCrtcInfoPtr;
+
+typedef enum {
+ DRM_MODE_CONNECTED = 1,
+ DRM_MODE_DISCONNECTED = 2,
+ DRM_MODE_UNKNOWNCONNECTION = 3
+} drmModeConnection;
+
+typedef enum {
+ DRM_MODE_SUBPIXEL_UNKNOWN = 1,
+ DRM_MODE_SUBPIXEL_HORIZONTAL_RGB = 2,
+ DRM_MODE_SUBPIXEL_HORIZONTAL_BGR = 3,
+ DRM_MODE_SUBPIXEL_VERTICAL_RGB = 4,
+ DRM_MODE_SUBPIXEL_VERTICAL_BGR = 5,
+ DRM_MODE_SUBPIXEL_NONE = 6
+} drmModeSubPixel;
+
+typedef struct _drmModeOutputInfo {
+
+ unsigned int crtc; /**< Crtc currently connected to */
+
+ drmModeConnection connection;
+ uint32_t width, height; /**< HxW in millimeters */
+ drmModeSubPixel subpixel;
+
+ int count_crtcs;
+ uint32_t *crtcs; /**< Possible crtc to connect to */
+
+ int count_clones;
+ uint32_t *clones; /**< List of clones */
+
+ int count_modes;
+ uint32_t *modes; /**< List of modes */
+
+} drmModeOutputInfo, *drmModeOutputInfoPtr;
+
+/*
+ * RRSetScreenConfig o
+ * RRGetScreenInfo o
+ *
+ * RRGetScreenSizeRange - see frameBuffer info
+ * RRSetScreenSize
+ * RRGetScreenResources
+ *
+ * RRGetOutputInfo
+ *
+ * RRListOutputProperties *
+ * RRQueryOutputProperty *
+ * RRConfigureOutputProperty *
+ * RRChangeOutputProperty *
+ * RRDeleteOutputProperty *
+ * RRGetOutputProperty *
+ *
+ * RRCreateMode
+ * RRDestroyMode
+ * RRAddOutputMode
+ * RRDeleteOutputMode
+ *
+ * RRGetCrtcInfo
+ * RRSetCrtcConfig
+ *
+ * RRGetCrtcGammaSize - see crtc info
+ * RRGetCrtcGamma
+ * RRSetCrtcGamma
+ *
+ * drmModeGetResources
+ * drmModeForceProbe
+ *
+ * drmModeGetFrameBufferInfo
+ * drmModeSetFrameBufferSize
+ *
+ * drmModeGetCrtcInfo
+ * drmModeSetCrtcConfig
+ * drmModeGetCrtcGamma
+ * drmModeSetCrtcGamma
+ *
+ * drmModeGetOutputInfo
+ *
+ * drmModeAddMode
+ * drmModeDestroyMode
+ * drmModeAddOutputMode
+ * drmModeDeleteOutputMode
+ */
+
+extern void drmModeFreeModeInfo( drmModeInfoPtr ptr );
+extern void drmModeFreeResources( drmModeResPtr ptr );
+extern void drmModeFreeFrameBufferInfo( drmModeFrameBufferInfoPtr ptr );
+extern void drmModeFreeCrtcInfo( drmModeCrtcInfoPtr ptr );
+extern void drmModeFreeOutputInfo( drmModeOutputInfoPtr ptr );
+
+/**
+ * Retrives all of the resources associated with a card.
+ */
+extern drmModeResPtr drmModeGetResources(int fd);
+
+/**
+ * Forces a probe of the give output outputId, on 0 all will be probed.
+ */
+extern int drmModeForceProbe(int fd, uint32_t outputId);
+
+
+/*
+ * FrameBuffer manipulation.
+ */
+
+/**
+ * Retrive information about framebuffer bufferId
+ */
+extern drmModeFrameBufferInfoPtr drmModeGetFramebufferInfo(int fd,
+ uint32_t bufferId);
+
+/**
+ * Sets the framebuffer to a given size.
+ */
+extern int drmModeSetFrameBufferSize(int fd, uint32_t bufferId,
+ uint32_t x, uint32_t y);
+
+
+/*
+ * Crtc function.
+ */
+
+/**
+ * Retrive information about the ctrt crtcId
+ */
+extern drmModeCrtcInfoPtr drmModeGetCrtcInfo(int fd, uint32_t crtcId);
+
+/**
+ * Set the mode on a crtc crtcId with the given mode modeId.
+ */
+extern int drmModeSetCrtcConfig(int fd, uint32_t crtcId, uint32_t bufferId,
+ uint32_t x, uint32_t y, uint32_t modeId,
+ uint32_t *outputs, int count);
+
+/**
+ * Gets the gamma from a crtc
+ */
+extern drmModeGammaTriplePtr drmModeGetCrtcGamma(int fd, uint32_t crtcId,
+ int *count);
+
+/**
+ * Sets the gamma on a crtc
+ */
+extern int drmModeSetCrtcGamma(int fd, uint32_t crtcId,
+ drmModeGammaTriplePtr ptr, int count);
+
+
+
+/*
+ * Output manipulation
+ */
+
+/**
+ * Retrive information about the output outputId.
+ */
+extern drmModeOutputInfoPtr drmModeGetOutputInfo(int fd,
+ uint32_t outputId);
+
+/**
+ * Creates a new mode from the given mode info.
+ * Name must be unique.
+ */
+extern uint32_t drmModeCreateMode(int fd, drmModeInfoPtr modeInfo);
+
+/**
+ * Destroys a mode created with CreateMode, must be unused.
+ */
+extern int drmModeDestroyMode(int fd, uint32_t modeId);
+
+/**
+ * Adds the given mode to an output.
+ */
+extern int drmModeAddOutputMode(int fd, uint32_t outputId, uint32_t modeId);
+
+/**
+ * Deletes a mode Added with AddOutputMode from the output,
+ * must be unused, by the given mode.
+ */
+extern int drmModeDeleteOutputMode(int fd, uint32_t outputId, uint32_t modeId);
+
--
1.4.1
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