Attachment 95812 Details for Bug 76176 – Simple test case that reproduces the bug.

Simple test case that reproduces the bug.

eglkms.c (text/plain), 5.57 KB, created by Ander Conselvan de Oliveira on 2014-03-14 15:04:44 UTC

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Creator: Ander Conselvan de Oliveira

Created: 2014-03-14 15:04:44 UTC

Size: 5.57 KB

patch

obsolete

>/*
> * Copyright Â© 2011 Kristian HÃ¸gsberg
> * Copyright Â© 2011 Benjamin Franzke
> *
> * 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.
> */
>
>#include <stdio.h>
>#include <stdlib.h>
>
>#define EGL_EGLEXT_PROTOTYPES
>#define GL_GLEXT_PROTOTYPES
>
>#include <drm.h>
>#include <libdrm/i915_drm.h>
>#include <libdrm/intel_bufmgr.h>
>#include <xf86drmMode.h>
>#include <fcntl.h>
>#include <unistd.h>
>#include <string.h>
>#include <stdbool.h>
>
>struct kms {
>   drmModeConnector *connector;
>   drmModeEncoder *encoder;
>   drmModeModeInfo mode;
>   uint32_t fb_id;
>};
>
>static bool
>setup_kms(int fd, struct kms *kms)
>{
>   drmModeRes *resources;
>   drmModeConnector *connector;
>   drmModeEncoder *encoder;
>   int i;
>   int count;
>
>   resources = drmModeGetResources(fd);
>   if (!resources) {
>      fprintf(stderr, "drmModeGetResources failed\n");
>      return false;
>   }
>
>   for (i = 0; i < resources->count_connectors; i++) {
>      connector = drmModeGetConnector(fd, resources->connectors[i]);
>      if (connector == NULL)
>	 continue;
>
>      if (connector->connection == DRM_MODE_CONNECTED &&
>	  connector->count_modes > 0 &&
>	  count++ > 0)
>	 break;
>
>      drmModeFreeConnector(connector);
>   }
>
>   if (i == resources->count_connectors) {
>      fprintf(stderr, "No currently active connector found.\n");
>      return false;
>   }
>
>   for (i = 0; i < resources->count_encoders; i++) {
>      encoder = drmModeGetEncoder(fd, resources->encoders[i]);
>
>      if (encoder == NULL)
>	 continue;
>
>      if (encoder->encoder_id == connector->encoder_id)
>	 break;
>
>      drmModeFreeEncoder(encoder);
>   }
>
>   kms->connector = connector;
>   kms->encoder = encoder;
>   kms->mode = connector->modes[0];
>
>   return true;
>}
>
>static const char device_name[] = "/dev/dri/card0";
>
>int main(int argc, char *argv[])
>{
>   uint32_t handle;
>   long unsigned int stride;
>   struct kms kms;
>   int ret, fd;
>   drm_intel_bufmgr *bufmgr;
>   drm_intel_bo *bo, *untiled_bo;
>   uint32_t tiling;
>   uint32_t *pixels;
>   int x, y;
>   drmModeCrtcPtr saved_crtc;
>
>   fd = open(device_name, O_RDWR);
>   if (fd < 0) {
>      /* Probably permissions error */
>      fprintf(stderr, "couldn't open %s, skipping\n", device_name);
>      return -1;
>   }
>
>   bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
>   if (bufmgr == NULL) {
>      fprintf(stderr, "couldn't create gbm device\n");
>      ret = -1;
>      goto close_fd;
>   }
>
>   if (!setup_kms(fd, &kms)) {
>      ret = -1;
>      goto egl_terminate;
>   }
>
>   tiling = I915_TILING_X;
>   bo = drm_intel_bo_alloc_tiled(bufmgr, "test", kms.mode.hdisplay, kms.mode.vdisplay, 4, &tiling, &stride, 0);
>   handle = bo->handle;
>
>   printf("handle=%d, stride=%d\n", handle, stride);
>
>   ret = drmModeAddFB(fd,
>		      kms.mode.hdisplay, kms.mode.vdisplay,
>		      24, 32, stride, handle, &kms.fb_id);
>   if (ret) {
>      fprintf(stderr, "failed to create fb\n");
>      goto rm_fb;
>   }
>
>   saved_crtc = drmModeGetCrtc(fd, kms.encoder->crtc_id);
>   if (saved_crtc == NULL)
>      goto rm_fb;
>
>   ret = drmModeSetCrtc(fd, kms.encoder->crtc_id, kms.fb_id, 0, 0,
>			&kms.connector->connector_id, 1, &kms.mode);
>   if (ret) {
>      fprintf(stderr, "failed to set mode: %m\n");
>      goto free_saved_crtc;
>   }
>
>   tiling = I915_TILING_NONE;
>   untiled_bo = drm_intel_bo_alloc_tiled(bufmgr, "test", kms.mode.hdisplay, kms.mode.vdisplay, 4, &tiling, &stride, 0);
>   handle = untiled_bo->handle;
>
>   printf("handle=%d, stride=%d\n", handle, stride);
>
>   drm_intel_gem_bo_map_gtt(untiled_bo);
>   pixels = untiled_bo->virtual;
>
>   for (y = 0; y < kms.mode.vdisplay; y++) {
>      for (x = 0; x < kms.mode.hdisplay; x++)
>          if (y % 2 == 0)
>             pixels[x] = 0xff | ((int) ((float) y / kms.mode.vdisplay * 255)) << 8;
>          else
>             pixels[x] = 0;
>
>      pixels += stride / 4;
>   }
>
>   drm_intel_bo_unmap(untiled_bo);
>
>
>   ret = drmModeAddFB(fd,
>		      kms.mode.hdisplay, kms.mode.vdisplay,
>		      24, 32, stride, handle, &kms.fb_id);
>   if (ret) {
>      fprintf(stderr, "failed to create second fb\n");
>      goto rm_fb;
>   }
>
>   ret = drmModePageFlip(fd, kms.encoder->crtc_id, kms.fb_id, 0, NULL);
>   if (ret) {
>      fprintf(stderr, "page flip failed: %m\n");
>      goto rm_fb;
>   }
>
>   getchar();
>
>   ret = drmModeSetCrtc(fd, saved_crtc->crtc_id, saved_crtc->buffer_id,
>                        saved_crtc->x, saved_crtc->y,
>                        &kms.connector->connector_id, 1, &saved_crtc->mode);
>   if (ret) {
>      fprintf(stderr, "failed to restore crtc: %m\n");
>   }
>
>free_saved_crtc:
>   drmModeFreeCrtc(saved_crtc);
>rm_fb:
>   drmModeRmFB(fd, kms.fb_id);
>egl_terminate:
>close_fd:
>   close(fd);
>
>   return ret;
>}

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Attachments on bug 76176: 95812 | 95814 | 96779

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