src/gallium/state_trackers/xorg/xorg_crtc.c - platform/external/mesa3d - Git at Google

 /*
  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
  *
  * 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, sub license, and/or sell copies of the Software, and to
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
  *
  * The above copyright notice and this permission notice (including the
  * next paragraph) shall be included in all copies or substantial portions
  * of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
  *
  *
  * Author: Alan Hourihane <alanh@tungstengraphics.com>
  * Author: Jakob Bornecrantz <wallbraker@gmail.com>
  *
  */

 #include <unistd.h>
 #include <string.h>
 #include <assert.h>
 #include <stdlib.h>
 #include <math.h>
 #include <stdint.h>

 #include "xorg-server.h"
 #include <xf86.h>
 #include <xf86i2c.h>
 #include <xf86Crtc.h>
 #include <cursorstr.h>
 #include "xorg_tracker.h"
 #include "xf86Modes.h"

 #ifdef HAVE_XEXTPROTO_71
 #include <X11/extensions/dpmsconst.h>
 #else
 #define DPMS_SERVER
 #include <X11/extensions/dpms.h>
 #endif

 #include "state_tracker/drm_driver.h"
 #include "util/u_inlines.h"
 #include "util/u_rect.h"

 #ifdef HAVE_LIBKMS
 #include "libkms/libkms.h"
 #endif

 struct crtc_private
 {
     drmModeCrtcPtr drm_crtc;

     /* hwcursor */
     struct pipe_resource *cursor_tex;
     struct kms_bo *cursor_bo;

     unsigned cursor_handle;
 };

 static void
 crtc_dpms(xf86CrtcPtr crtc, int mode)
 {
     /* ScrnInfoPtr pScrn = crtc->scrn; */

     switch (mode) {
     case DPMSModeOn:
     case DPMSModeStandby:
     case DPMSModeSuspend:
 	break;
     case DPMSModeOff:
 	break;
     }
 }

 static Bool
 crtc_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
 		    Rotation rotation, int x, int y)
 {
     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
     modesettingPtr ms = modesettingPTR(crtc->scrn);
     xf86OutputPtr output = NULL;
     struct crtc_private *crtcp = crtc->driver_private;
     drmModeCrtcPtr drm_crtc = crtcp->drm_crtc;
     drmModeModeInfo drm_mode;
     int i, ret;
     unsigned int connector_id;

     for (i = 0; i < config->num_output; output = NULL, i++) {
 	output = config->output[i];

 	if (output->crtc == crtc)
 	    break;
     }

     if (!output)
 	return FALSE;

     connector_id = xorg_output_get_id(output);

     drm_mode.clock = mode->Clock;
     drm_mode.hdisplay = mode->HDisplay;
     drm_mode.hsync_start = mode->HSyncStart;
     drm_mode.hsync_end = mode->HSyncEnd;
     drm_mode.htotal = mode->HTotal;
     drm_mode.vdisplay = mode->VDisplay;
     drm_mode.vsync_start = mode->VSyncStart;
     drm_mode.vsync_end = mode->VSyncEnd;
     drm_mode.vtotal = mode->VTotal;
     drm_mode.flags = mode->Flags;
     drm_mode.hskew = mode->HSkew;
     drm_mode.vscan = mode->VScan;
     drm_mode.vrefresh = mode->VRefresh;
     drm_mode.type = 0;
     if (!mode->name)
 	xf86SetModeDefaultName(mode);
     strncpy(drm_mode.name, mode->name, DRM_DISPLAY_MODE_LEN - 1);
     drm_mode.name[DRM_DISPLAY_MODE_LEN - 1] = '\0';

     ret = drmModeSetCrtc(ms->fd, drm_crtc->crtc_id, ms->fb_id, x, y,
 			 &connector_id, 1, &drm_mode);

     if (ret)
 	return FALSE;

     /* Only set gamma when needed, to avoid unneeded delays. */
 #if defined(XF86_CRTC_VERSION) && XF86_CRTC_VERSION >= 3
     if (!crtc->active && crtc->version >= 3)
 	crtc->funcs->gamma_set(crtc, crtc->gamma_red, crtc->gamma_green,
 			       crtc->gamma_blue, crtc->gamma_size);
     crtc->active = TRUE;
 #endif

     crtc->x = x;
     crtc->y = y;
     crtc->mode = *mode;
     crtc->rotation = rotation;

     return TRUE;
 }

 static void
 crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
 	       int size)
 {
     modesettingPtr ms = modesettingPTR(crtc->scrn);
     struct crtc_private *crtcp = crtc->driver_private;

     drmModeCrtcSetGamma(ms->fd, crtcp->drm_crtc->crtc_id, size, red, green, blue);
 }

 #if 0 /* Implement and enable to enable rotation and reflection. */
 static void *
 crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
 {
     /* ScrnInfoPtr pScrn = crtc->scrn; */

     return NULL;
 }

 static PixmapPtr
 crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
 {
     /* ScrnInfoPtr pScrn = crtc->scrn; */

     return NULL;
 }

 static void
 crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
 {
     /* ScrnInfoPtr pScrn = crtc->scrn; */
 }

 #endif

 /*
  * Cursor functions
  */

 static void
 crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
 {
     /* XXX: See if this one is needed, as we only support ARGB cursors */
 }

 static void
 crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
 {
     modesettingPtr ms = modesettingPTR(crtc->scrn);
     struct crtc_private *crtcp = crtc->driver_private;

     drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
 }

 static void
 crtc_load_cursor_argb_ga3d(xf86CrtcPtr crtc, CARD32 * image)
 {
     unsigned char *ptr;
     modesettingPtr ms = modesettingPTR(crtc->scrn);
     struct crtc_private *crtcp = crtc->driver_private;
     struct pipe_transfer *transfer;
     struct pipe_fence_handle *fence = NULL;
     struct pipe_context *ctx = ms->ctx;
     struct pipe_screen *screen = ms->screen;

     if (!crtcp->cursor_tex) {
 	struct pipe_resource templat;
 	struct winsys_handle whandle;

 	memset(&templat, 0, sizeof(templat));
 	templat.bind |= PIPE_BIND_RENDER_TARGET;
 	templat.bind |= PIPE_BIND_SCANOUT;
 	templat.bind |= PIPE_BIND_CURSOR;
 	templat.target = PIPE_TEXTURE_2D;
 	templat.last_level = 0;
 	templat.depth0 = 1;
 	templat.array_size = 1;
 	templat.format = PIPE_FORMAT_B8G8R8A8_UNORM;
 	templat.width0 = 64;
 	templat.height0 = 64;

 	memset(&whandle, 0, sizeof(whandle));
 	whandle.type = DRM_API_HANDLE_TYPE_KMS;

 	crtcp->cursor_tex = screen->resource_create(screen, &templat);
 	screen->resource_get_handle(screen, crtcp->cursor_tex, &whandle);

 	crtcp->cursor_handle = whandle.handle;
     }

     transfer = pipe_get_transfer(ctx, crtcp->cursor_tex,
                                  0, 0,
                                  PIPE_TRANSFER_WRITE,
                                  0, 0, 64, 64);
     ptr = ctx->transfer_map(ctx, transfer);
     util_copy_rect(ptr, crtcp->cursor_tex->format,
 		   transfer->stride, 0, 0,
 		   64, 64, (void*)image, 64 * 4, 0, 0);
     ctx->transfer_unmap(ctx, transfer);
     ctx->transfer_destroy(ctx, transfer);
     ctx->flush(ctx, &fence);

     if (fence) {
 	screen->fence_finish(screen, fence, PIPE_TIMEOUT_INFINITE);
 	screen->fence_reference(screen, &fence, NULL);
     }

     if (crtc->cursor_shown)
 	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
 			 crtcp->cursor_handle, 64, 64);
 }

 #if HAVE_LIBKMS
 static void
 crtc_load_cursor_argb_kms(xf86CrtcPtr crtc, CARD32 * image)
 {
     modesettingPtr ms = modesettingPTR(crtc->scrn);
     struct crtc_private *crtcp = crtc->driver_private;
     unsigned char *ptr;

     if (!crtcp->cursor_bo) {
 	unsigned attr[8];

 	attr[0] = KMS_BO_TYPE;
 #ifdef KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8
 	attr[1] = KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8;
 #else
 	attr[1] = KMS_BO_TYPE_CURSOR;
 #endif
 	attr[2] = KMS_WIDTH;
 	attr[3] = 64;
 	attr[4] = KMS_HEIGHT;
 	attr[5] = 64;
 	attr[6] = 0;

         if (kms_bo_create(ms->kms, attr, &crtcp->cursor_bo))
 	   return;

 	if (kms_bo_get_prop(crtcp->cursor_bo, KMS_HANDLE,
 			    &crtcp->cursor_handle))
 	    goto err_bo_destroy;
     }

     kms_bo_map(crtcp->cursor_bo, (void**)&ptr);
     memcpy(ptr, image, 64*64*4);
     kms_bo_unmap(crtcp->cursor_bo);

     if (crtc->cursor_shown)
 	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
 			 crtcp->cursor_handle, 64, 64);

     return;

 err_bo_destroy:
     kms_bo_destroy(&crtcp->cursor_bo);
 }
 #endif

 static void
 crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
 {
     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
     modesettingPtr ms = modesettingPTR(crtc->scrn);

     /* Older X servers have cursor reference counting bugs leading to use of
      * freed memory and consequently random crashes. Should be fixed as of
      * xserver 1.8, but this workaround shouldn't hurt anyway.
      */
     if (config->cursor)
        config->cursor->refcnt++;

     if (ms->cursor)
        FreeCursor(ms->cursor, None);

     ms->cursor = config->cursor;

     if (ms->screen)
 	crtc_load_cursor_argb_ga3d(crtc, image);
 #ifdef HAVE_LIBKMS
     else if (ms->kms)
 	crtc_load_cursor_argb_kms(crtc, image);
 #endif
 }

 static void
 crtc_show_cursor(xf86CrtcPtr crtc)
 {
     modesettingPtr ms = modesettingPTR(crtc->scrn);
     struct crtc_private *crtcp = crtc->driver_private;

     if (crtcp->cursor_tex || crtcp->cursor_bo)
 	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
 			 crtcp->cursor_handle, 64, 64);
 }

 static void
 crtc_hide_cursor(xf86CrtcPtr crtc)
 {
     modesettingPtr ms = modesettingPTR(crtc->scrn);
     struct crtc_private *crtcp = crtc->driver_private;

     drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
 }

 /**
  * Called at vt leave
  */
 void
 xorg_crtc_cursor_destroy(xf86CrtcPtr crtc)
 {
     struct crtc_private *crtcp = crtc->driver_private;

     if (crtcp->cursor_tex)
 	pipe_resource_reference(&crtcp->cursor_tex, NULL);
 #ifdef HAVE_LIBKMS
     if (crtcp->cursor_bo)
 	kms_bo_destroy(&crtcp->cursor_bo);
 #endif
 }

 /*
  * Misc functions
  */

 static void
 crtc_destroy(xf86CrtcPtr crtc)
 {
     struct crtc_private *crtcp = crtc->driver_private;

     xorg_crtc_cursor_destroy(crtc);

     drmModeFreeCrtc(crtcp->drm_crtc);

     free(crtcp);
     crtc->driver_private = NULL;
 }

 static const xf86CrtcFuncsRec crtc_funcs = {
     .dpms = crtc_dpms,
     .set_mode_major = crtc_set_mode_major,

     .set_cursor_colors = crtc_set_cursor_colors,
     .set_cursor_position = crtc_set_cursor_position,
     .show_cursor = crtc_show_cursor,
     .hide_cursor = crtc_hide_cursor,
     .load_cursor_argb = crtc_load_cursor_argb,

     .shadow_create = NULL,
     .shadow_allocate = NULL,
     .shadow_destroy = NULL,

     .gamma_set = crtc_gamma_set,
     .destroy = crtc_destroy,
 };

 void
 xorg_crtc_init(ScrnInfoPtr pScrn)
 {
     modesettingPtr ms = modesettingPTR(pScrn);
     xf86CrtcPtr crtc;
     drmModeResPtr res;
     drmModeCrtcPtr drm_crtc = NULL;
     struct crtc_private *crtcp;
     int c;

     res = drmModeGetResources(ms->fd);
     if (res == 0) {
 	ErrorF("Failed drmModeGetResources %d\n", errno);
 	return;
     }

     for (c = 0; c < res->count_crtcs; c++) {
 	drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);

 	if (!drm_crtc)
 	    continue;

 	crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
 	if (crtc == NULL)
 	    goto out;

 	crtcp = calloc(1, sizeof(struct crtc_private));
 	if (!crtcp) {
 	    xf86CrtcDestroy(crtc);
 	    goto out;
 	}

 	crtcp->drm_crtc = drm_crtc;

 	crtc->driver_private = crtcp;
     }

   out:
     drmModeFreeResources(res);
 }

 /* vim: set sw=4 ts=8 sts=4: */
	/*
	* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
	* All Rights Reserved.
	*
	* 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, sub license, and/or sell copies of the Software, and to
	* permit persons to whom the Software is furnished to do so, subject to
	* the following conditions:
	*
	* The above copyright notice and this permission notice (including the
	* next paragraph) shall be included in all copies or substantial portions
	* of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
	* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
	*
	*
	* Author: Alan Hourihane <alanh@tungstengraphics.com>
	* Author: Jakob Bornecrantz <wallbraker@gmail.com>
	*
	*/

	#include <unistd.h>
	#include <string.h>
	#include <assert.h>
	#include <stdlib.h>
	#include <math.h>
	#include <stdint.h>

	#include "xorg-server.h"
	#include <xf86.h>
	#include <xf86i2c.h>
	#include <xf86Crtc.h>
	#include <cursorstr.h>
	#include "xorg_tracker.h"
	#include "xf86Modes.h"

	#ifdef HAVE_XEXTPROTO_71
	#include <X11/extensions/dpmsconst.h>
	#else
	#define DPMS_SERVER
	#include <X11/extensions/dpms.h>
	#endif

	#include "state_tracker/drm_driver.h"
	#include "util/u_inlines.h"
	#include "util/u_rect.h"

	#ifdef HAVE_LIBKMS
	#include "libkms/libkms.h"
	#endif

	struct crtc_private
	{
	drmModeCrtcPtr drm_crtc;

	/* hwcursor */
	struct pipe_resource *cursor_tex;
	struct kms_bo *cursor_bo;

	unsigned cursor_handle;
	};

	static void
	crtc_dpms(xf86CrtcPtr crtc, int mode)
	{
	/* ScrnInfoPtr pScrn = crtc->scrn; */

	switch (mode) {
	case DPMSModeOn:
	case DPMSModeStandby:
	case DPMSModeSuspend:
	break;
	case DPMSModeOff:
	break;
	}
	}

	static Bool
	crtc_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
	Rotation rotation, int x, int y)
	{
	xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
	modesettingPtr ms = modesettingPTR(crtc->scrn);
	xf86OutputPtr output = NULL;
	struct crtc_private *crtcp = crtc->driver_private;
	drmModeCrtcPtr drm_crtc = crtcp->drm_crtc;
	drmModeModeInfo drm_mode;
	int i, ret;
	unsigned int connector_id;

	for (i = 0; i < config->num_output; output = NULL, i++) {
	output = config->output[i];

	if (output->crtc == crtc)
	break;
	}

	if (!output)
	return FALSE;

	connector_id = xorg_output_get_id(output);

	drm_mode.clock = mode->Clock;
	drm_mode.hdisplay = mode->HDisplay;
	drm_mode.hsync_start = mode->HSyncStart;
	drm_mode.hsync_end = mode->HSyncEnd;
	drm_mode.htotal = mode->HTotal;
	drm_mode.vdisplay = mode->VDisplay;
	drm_mode.vsync_start = mode->VSyncStart;
	drm_mode.vsync_end = mode->VSyncEnd;
	drm_mode.vtotal = mode->VTotal;
	drm_mode.flags = mode->Flags;
	drm_mode.hskew = mode->HSkew;
	drm_mode.vscan = mode->VScan;
	drm_mode.vrefresh = mode->VRefresh;
	drm_mode.type = 0;
	if (!mode->name)
	xf86SetModeDefaultName(mode);
	strncpy(drm_mode.name, mode->name, DRM_DISPLAY_MODE_LEN - 1);
	drm_mode.name[DRM_DISPLAY_MODE_LEN - 1] = '\0';

	ret = drmModeSetCrtc(ms->fd, drm_crtc->crtc_id, ms->fb_id, x, y,
	&connector_id, 1, &drm_mode);

	if (ret)
	return FALSE;

	/* Only set gamma when needed, to avoid unneeded delays. */
	#if defined(XF86_CRTC_VERSION) && XF86_CRTC_VERSION >= 3
	if (!crtc->active && crtc->version >= 3)
	crtc->funcs->gamma_set(crtc, crtc->gamma_red, crtc->gamma_green,
	crtc->gamma_blue, crtc->gamma_size);
	crtc->active = TRUE;
	#endif

	crtc->x = x;
	crtc->y = y;
	crtc->mode = *mode;
	crtc->rotation = rotation;

	return TRUE;
	}

	static void
	crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
	int size)
	{
	modesettingPtr ms = modesettingPTR(crtc->scrn);
	struct crtc_private *crtcp = crtc->driver_private;

	drmModeCrtcSetGamma(ms->fd, crtcp->drm_crtc->crtc_id, size, red, green, blue);
	}

	#if 0 /* Implement and enable to enable rotation and reflection. */
	static void *
	crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
	{
	/* ScrnInfoPtr pScrn = crtc->scrn; */

	return NULL;
	}

	static PixmapPtr
	crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
	{
	/* ScrnInfoPtr pScrn = crtc->scrn; */

	return NULL;
	}

	static void
	crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
	{
	/* ScrnInfoPtr pScrn = crtc->scrn; */
	}

	#endif

	/*
	* Cursor functions
	*/

	static void
	crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
	{
	/* XXX: See if this one is needed, as we only support ARGB cursors */
	}

	static void
	crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
	{
	modesettingPtr ms = modesettingPTR(crtc->scrn);
	struct crtc_private *crtcp = crtc->driver_private;

	drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
	}

	static void
	crtc_load_cursor_argb_ga3d(xf86CrtcPtr crtc, CARD32 * image)
	{
	unsigned char *ptr;
	modesettingPtr ms = modesettingPTR(crtc->scrn);
	struct crtc_private *crtcp = crtc->driver_private;
	struct pipe_transfer *transfer;
	struct pipe_fence_handle *fence = NULL;
	struct pipe_context *ctx = ms->ctx;
	struct pipe_screen *screen = ms->screen;

	if (!crtcp->cursor_tex) {
	struct pipe_resource templat;
	struct winsys_handle whandle;

	memset(&templat, 0, sizeof(templat));
	templat.bind \|= PIPE_BIND_RENDER_TARGET;
	templat.bind \|= PIPE_BIND_SCANOUT;
	templat.bind \|= PIPE_BIND_CURSOR;
	templat.target = PIPE_TEXTURE_2D;
	templat.last_level = 0;
	templat.depth0 = 1;
	templat.array_size = 1;
	templat.format = PIPE_FORMAT_B8G8R8A8_UNORM;
	templat.width0 = 64;
	templat.height0 = 64;

	memset(&whandle, 0, sizeof(whandle));
	whandle.type = DRM_API_HANDLE_TYPE_KMS;

	crtcp->cursor_tex = screen->resource_create(screen, &templat);
	screen->resource_get_handle(screen, crtcp->cursor_tex, &whandle);

	crtcp->cursor_handle = whandle.handle;
	}

	transfer = pipe_get_transfer(ctx, crtcp->cursor_tex,
	0, 0,
	PIPE_TRANSFER_WRITE,
	0, 0, 64, 64);
	ptr = ctx->transfer_map(ctx, transfer);
	util_copy_rect(ptr, crtcp->cursor_tex->format,
	transfer->stride, 0, 0,
	64, 64, (void)image, 64 4, 0, 0);
	ctx->transfer_unmap(ctx, transfer);
	ctx->transfer_destroy(ctx, transfer);
	ctx->flush(ctx, &fence);

	if (fence) {
	screen->fence_finish(screen, fence, PIPE_TIMEOUT_INFINITE);
	screen->fence_reference(screen, &fence, NULL);
	}

	if (crtc->cursor_shown)
	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
	crtcp->cursor_handle, 64, 64);
	}

	#if HAVE_LIBKMS
	static void
	crtc_load_cursor_argb_kms(xf86CrtcPtr crtc, CARD32 * image)
	{
	modesettingPtr ms = modesettingPTR(crtc->scrn);
	struct crtc_private *crtcp = crtc->driver_private;
	unsigned char *ptr;

	if (!crtcp->cursor_bo) {
	unsigned attr[8];

	attr[0] = KMS_BO_TYPE;
	#ifdef KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8
	attr[1] = KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8;
	#else
	attr[1] = KMS_BO_TYPE_CURSOR;
	#endif
	attr[2] = KMS_WIDTH;
	attr[3] = 64;
	attr[4] = KMS_HEIGHT;
	attr[5] = 64;
	attr[6] = 0;

	if (kms_bo_create(ms->kms, attr, &crtcp->cursor_bo))
	return;

	if (kms_bo_get_prop(crtcp->cursor_bo, KMS_HANDLE,
	&crtcp->cursor_handle))
	goto err_bo_destroy;
	}

	kms_bo_map(crtcp->cursor_bo, (void**)&ptr);
	memcpy(ptr, image, 64644);
	kms_bo_unmap(crtcp->cursor_bo);

	if (crtc->cursor_shown)
	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
	crtcp->cursor_handle, 64, 64);

	return;

	err_bo_destroy:
	kms_bo_destroy(&crtcp->cursor_bo);
	}
	#endif

	static void
	crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
	{
	xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
	modesettingPtr ms = modesettingPTR(crtc->scrn);

	/* Older X servers have cursor reference counting bugs leading to use of
	* freed memory and consequently random crashes. Should be fixed as of
	* xserver 1.8, but this workaround shouldn't hurt anyway.
	*/
	if (config->cursor)
	config->cursor->refcnt++;

	if (ms->cursor)
	FreeCursor(ms->cursor, None);

	ms->cursor = config->cursor;

	if (ms->screen)
	crtc_load_cursor_argb_ga3d(crtc, image);
	#ifdef HAVE_LIBKMS
	else if (ms->kms)
	crtc_load_cursor_argb_kms(crtc, image);
	#endif
	}

	static void
	crtc_show_cursor(xf86CrtcPtr crtc)
	{
	modesettingPtr ms = modesettingPTR(crtc->scrn);
	struct crtc_private *crtcp = crtc->driver_private;

	if (crtcp->cursor_tex \|\| crtcp->cursor_bo)
	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
	crtcp->cursor_handle, 64, 64);
	}

	static void
	crtc_hide_cursor(xf86CrtcPtr crtc)
	{
	modesettingPtr ms = modesettingPTR(crtc->scrn);
	struct crtc_private *crtcp = crtc->driver_private;

	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
	}

	/**
	* Called at vt leave
	*/
	void
	xorg_crtc_cursor_destroy(xf86CrtcPtr crtc)
	{
	struct crtc_private *crtcp = crtc->driver_private;

	if (crtcp->cursor_tex)
	pipe_resource_reference(&crtcp->cursor_tex, NULL);
	#ifdef HAVE_LIBKMS
	if (crtcp->cursor_bo)
	kms_bo_destroy(&crtcp->cursor_bo);
	#endif
	}

	/*
	* Misc functions
	*/

	static void
	crtc_destroy(xf86CrtcPtr crtc)
	{
	struct crtc_private *crtcp = crtc->driver_private;

	xorg_crtc_cursor_destroy(crtc);

	drmModeFreeCrtc(crtcp->drm_crtc);

	free(crtcp);
	crtc->driver_private = NULL;
	}

	static const xf86CrtcFuncsRec crtc_funcs = {
	.dpms = crtc_dpms,
	.set_mode_major = crtc_set_mode_major,

	.set_cursor_colors = crtc_set_cursor_colors,
	.set_cursor_position = crtc_set_cursor_position,
	.show_cursor = crtc_show_cursor,
	.hide_cursor = crtc_hide_cursor,
	.load_cursor_argb = crtc_load_cursor_argb,

	.shadow_create = NULL,
	.shadow_allocate = NULL,
	.shadow_destroy = NULL,

	.gamma_set = crtc_gamma_set,
	.destroy = crtc_destroy,
	};

	void
	xorg_crtc_init(ScrnInfoPtr pScrn)
	{
	modesettingPtr ms = modesettingPTR(pScrn);
	xf86CrtcPtr crtc;
	drmModeResPtr res;
	drmModeCrtcPtr drm_crtc = NULL;
	struct crtc_private *crtcp;
	int c;

	res = drmModeGetResources(ms->fd);
	if (res == 0) {
	ErrorF("Failed drmModeGetResources %d\n", errno);
	return;
	}

	for (c = 0; c < res->count_crtcs; c++) {
	drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);

	if (!drm_crtc)
	continue;

	crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
	if (crtc == NULL)
	goto out;

	crtcp = calloc(1, sizeof(struct crtc_private));
	if (!crtcp) {
	xf86CrtcDestroy(crtc);
	goto out;
	}

	crtcp->drm_crtc = drm_crtc;

	crtc->driver_private = crtcp;
	}

	out:
	drmModeFreeResources(res);
	}

	/* vim: set sw=4 ts=8 sts=4: */