[Mesa-dev] [PATCH 1/7] gallium: Refactor out vl_put_screen and vl_get_screen

Julien Isorce julien.isorce at gmail.com
Thu Nov 30 11:22:18 UTC 2017


Hi Gurkirpal,

> Before refactoring process both the state trackers were in independent
directories.
> During earlier refactoring effort we decided to keep that directory
structure so it made
> sense to move them to auxiliary code. After that I moved them both under
st/omx.
> Since there could be a chance of it being useful out of st/omx, I left
the decision to
> keep it or move it back to st/omx to the mailing list.

Yes please move it back to st/omx for the reasons you said, i.e. there will
now 2
sub directories, st/omx/bellagio and st/omx/tizonia and common code in
st/omx.

Another reason is that the env var "OMX_RENDER_NODE" mentions OMX.

Thx!
Julien


On 29 November 2017 at 04:02, Gurkirpal Singh <gurkirpal204 at gmail.com>
wrote:

> ---
>  src/gallium/auxiliary/Makefile.sources             |   2 +
>  src/gallium/auxiliary/vl/vl_screen.c               | 107
> +++++++++++++++++++++
>  src/gallium/auxiliary/vl/vl_screen.h               |  33 +++++++
>  .../state_trackers/omx_bellagio/entrypoint.c       |  83 ----------------
>  .../state_trackers/omx_bellagio/entrypoint.h       |   3 -
>  src/gallium/state_trackers/omx_bellagio/vid_dec.c  |   5 +-
>  src/gallium/state_trackers/omx_bellagio/vid_enc.c  |   5 +-
>  7 files changed, 148 insertions(+), 90 deletions(-)
>  create mode 100644 src/gallium/auxiliary/vl/vl_screen.c
>  create mode 100644 src/gallium/auxiliary/vl/vl_screen.h
>
> diff --git a/src/gallium/auxiliary/Makefile.sources
> b/src/gallium/auxiliary/Makefile.sources
> index f40c472..35e89f9 100644
> --- a/src/gallium/auxiliary/Makefile.sources
> +++ b/src/gallium/auxiliary/Makefile.sources
> @@ -343,6 +343,8 @@ VL_SOURCES := \
>         vl/vl_mpeg12_decoder.c \
>         vl/vl_mpeg12_decoder.h \
>         vl/vl_rbsp.h \
> +       vl/vl_screen.c \
> +       vl/vl_screen.h \
>         vl/vl_types.h \
>         vl/vl_vertex_buffers.c \
>         vl/vl_vertex_buffers.h \
> diff --git a/src/gallium/auxiliary/vl/vl_screen.c
> b/src/gallium/auxiliary/vl/vl_screen.c
> new file mode 100644
> index 0000000..7192802
> --- /dev/null
> +++ b/src/gallium/auxiliary/vl/vl_screen.c
> @@ -0,0 +1,107 @@
> +/**********************************************************
> ****************
> + *
> + * 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 VMWARE 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.
> + *
> + ************************************************************
> **************/
> +
> +#include <assert.h>
> +#include <string.h>
> +#include <stdbool.h>
> +
> +#include "os/os_thread.h"
> +#include "util/u_memory.h"
> +#include "loader/loader.h"
> +#include "vl_screen.h"
> +
> +#if defined(HAVE_X11_PLATFORM)
> +#include <X11/Xlib.h>
> +#else
> +#define XOpenDisplay(x) NULL
> +#define XCloseDisplay(x)
> +#define Display void
> +#endif
> +
> +static mtx_t st_lock = _MTX_INITIALIZER_NP;
> +static Display *st_display = NULL;
> +static struct vl_screen *st_screen = NULL;
> +static unsigned st_usecount = 0;
> +static const char *st_render_node = NULL;
> +static int drm_fd;
> +
> +struct vl_screen *vl_get_screen(const char* render_node)
> +{
> +   static bool first_time = true;
> +   mtx_lock(&st_lock);
> +
> +   if (!st_screen) {
> +      if (first_time) {
> +         st_render_node = debug_get_option(render_node, NULL);
> +         first_time = false;
> +      }
> +      if (st_render_node) {
> +         drm_fd = loader_open_device(st_render_node);
> +         if (drm_fd < 0)
> +            goto error;
> +
> +         st_screen = vl_drm_screen_create(drm_fd);
> +         if (!st_screen) {
> +            close(drm_fd);
> +            goto error;
> +         }
> +      } else {
> +         st_display = XOpenDisplay(NULL);
> +         if (!st_display)
> +            goto error;
> +
> +         st_screen = vl_dri3_screen_create(st_display, 0);
> +         if (!st_screen)
> +            st_screen = vl_dri2_screen_create(st_display, 0);
> +         if (!st_screen) {
> +            XCloseDisplay(st_display);
> +            goto error;
> +         }
> +      }
> +   }
> +
> +   ++st_usecount;
> +
> +   mtx_unlock(&st_lock);
> +   return st_screen;
> +
> +error:
> +   mtx_unlock(&st_lock);
> +   return NULL;
> +}
> +
> +void vl_put_screen(void)
> +{
> +   mtx_lock(&st_lock);
> +   if ((--st_usecount) == 0) {
> +      st_screen->destroy(st_screen);
> +      st_screen = NULL;
> +
> +      if (st_render_node)
> +         close(drm_fd);
> +      else
> +         XCloseDisplay(st_display);
> +   }
> +   mtx_unlock(&st_lock);
> +}
> diff --git a/src/gallium/auxiliary/vl/vl_screen.h
> b/src/gallium/auxiliary/vl/vl_screen.h
> new file mode 100644
> index 0000000..1e14775
> --- /dev/null
> +++ b/src/gallium/auxiliary/vl/vl_screen.h
> @@ -0,0 +1,33 @@
> +/**********************************************************
> ****************
> + *
> + * 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 VMWARE 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.
> + *
> + ************************************************************
> **************/
> +
> +#ifndef VL_VL_SCREEN_H
> +#define VL_VL_SCREEN_H
> +
> +#include "vl_winsys.h"
> +
> +struct vl_screen *vl_get_screen(const char* render_node);
> +void vl_put_screen(void);
> +
> +#endif
> diff --git a/src/gallium/state_trackers/omx_bellagio/entrypoint.c
> b/src/gallium/state_trackers/omx_bellagio/entrypoint.c
> index 251cc7d..5c75e8d 100644
> --- a/src/gallium/state_trackers/omx_bellagio/entrypoint.c
> +++ b/src/gallium/state_trackers/omx_bellagio/entrypoint.c
> @@ -31,33 +31,10 @@
>   *
>   */
>
> -#include <assert.h>
> -#include <string.h>
> -#include <stdbool.h>
> -
> -#if defined(HAVE_X11_PLATFORM)
> -#include <X11/Xlib.h>
> -#else
> -#define XOpenDisplay(x) NULL
> -#define XCloseDisplay(x)
> -#define Display void
> -#endif
> -
> -#include "os/os_thread.h"
> -#include "util/u_memory.h"
> -#include "loader/loader.h"
> -
>  #include "entrypoint.h"
>  #include "vid_dec.h"
>  #include "vid_enc.h"
>
> -static mtx_t omx_lock = _MTX_INITIALIZER_NP;
> -static Display *omx_display = NULL;
> -static struct vl_screen *omx_screen = NULL;
> -static unsigned omx_usecount = 0;
> -static const char *omx_render_node = NULL;
> -static int drm_fd;
> -
>  int omx_component_library_Setup(stLoaderComponentType **stComponents)
>  {
>     OMX_ERRORTYPE r;
> @@ -78,66 +55,6 @@ int omx_component_library_Setup(stLoaderComponentType
> **stComponents)
>     return 2;
>  }
>
> -struct vl_screen *omx_get_screen(void)
> -{
> -   static bool first_time = true;
> -   mtx_lock(&omx_lock);
> -
> -   if (!omx_screen) {
> -      if (first_time) {
> -         omx_render_node = debug_get_option("OMX_RENDER_NODE", NULL);
> -         first_time = false;
> -      }
> -      if (omx_render_node) {
> -         drm_fd = loader_open_device(omx_render_node);
> -         if (drm_fd < 0)
> -            goto error;
> -
> -         omx_screen = vl_drm_screen_create(drm_fd);
> -         if (!omx_screen) {
> -            close(drm_fd);
> -            goto error;
> -         }
> -      } else {
> -         omx_display = XOpenDisplay(NULL);
> -         if (!omx_display)
> -            goto error;
> -
> -         omx_screen = vl_dri3_screen_create(omx_display, 0);
> -         if (!omx_screen)
> -            omx_screen = vl_dri2_screen_create(omx_display, 0);
> -         if (!omx_screen) {
> -            XCloseDisplay(omx_display);
> -            goto error;
> -         }
> -      }
> -   }
> -
> -   ++omx_usecount;
> -
> -   mtx_unlock(&omx_lock);
> -   return omx_screen;
> -
> -error:
> -   mtx_unlock(&omx_lock);
> -   return NULL;
> -}
> -
> -void omx_put_screen(void)
> -{
> -   mtx_lock(&omx_lock);
> -   if ((--omx_usecount) == 0) {
> -      omx_screen->destroy(omx_screen);
> -      omx_screen = NULL;
> -
> -      if (omx_render_node)
> -         close(drm_fd);
> -      else
> -         XCloseDisplay(omx_display);
> -   }
> -   mtx_unlock(&omx_lock);
> -}
> -
>  OMX_ERRORTYPE omx_workaround_Destructor(OMX_COMPONENTTYPE *comp)
>  {
>     omx_base_component_PrivateType* priv = (omx_base_component_
> PrivateType*)comp->pComponentPrivate;
> diff --git a/src/gallium/state_trackers/omx_bellagio/entrypoint.h
> b/src/gallium/state_trackers/omx_bellagio/entrypoint.h
> index 7625d7a..d566d1e 100644
> --- a/src/gallium/state_trackers/omx_bellagio/entrypoint.h
> +++ b/src/gallium/state_trackers/omx_bellagio/entrypoint.h
> @@ -40,9 +40,6 @@
>
>  PUBLIC extern int omx_component_library_Setup(stLoaderComponentType
> **stComponents);
>
> -struct vl_screen *omx_get_screen(void);
> -void omx_put_screen(void);
> -
>  OMX_ERRORTYPE omx_workaround_Destructor(OMX_COMPONENTTYPE *comp);
>
>  #endif
> diff --git a/src/gallium/state_trackers/omx_bellagio/vid_dec.c
> b/src/gallium/state_trackers/omx_bellagio/vid_dec.c
> index f9fe19f..b62c705 100644
> --- a/src/gallium/state_trackers/omx_bellagio/vid_dec.c
> +++ b/src/gallium/state_trackers/omx_bellagio/vid_dec.c
> @@ -50,6 +50,7 @@
>  #include "util/u_surface.h"
>  #include "vl/vl_video_buffer.h"
>  #include "vl/vl_vlc.h"
> +#include "vl/vl_screen.h"
>
>  #include "entrypoint.h"
>  #include "vid_dec.h"
> @@ -173,7 +174,7 @@ static OMX_ERRORTYPE vid_dec_Constructor(OMX_COMPONENTTYPE
> *comp, OMX_STRING nam
>     comp->SetParameter = vid_dec_SetParameter;
>     comp->GetParameter = vid_dec_GetParameter;
>
> -   priv->screen = omx_get_screen();
> +   priv->screen = vl_get_screen("OMX_RENDER_NODE");
>     if (!priv->screen)
>        return OMX_ErrorInsufficientResources;
>
> @@ -253,7 +254,7 @@ static OMX_ERRORTYPE vid_dec_Destructor(OMX_COMPONENTTYPE
> *comp)
>     }
>
>     if (priv->screen)
> -      omx_put_screen();
> +      vl_put_screen();
>
>     return omx_workaround_Destructor(comp);
>  }
> diff --git a/src/gallium/state_trackers/omx_bellagio/vid_enc.c
> b/src/gallium/state_trackers/omx_bellagio/vid_enc.c
> index 1a4fb62..40e7a0f 100644
> --- a/src/gallium/state_trackers/omx_bellagio/vid_enc.c
> +++ b/src/gallium/state_trackers/omx_bellagio/vid_enc.c
> @@ -50,6 +50,7 @@
>  #include "pipe/p_video_codec.h"
>  #include "util/u_memory.h"
>  #include "vl/vl_video_buffer.h"
> +#include "vl/vl_screen.h"
>
>  #include "entrypoint.h"
>  #include "vid_enc.h"
> @@ -170,7 +171,7 @@ static OMX_ERRORTYPE vid_enc_Constructor(OMX_COMPONENTTYPE
> *comp, OMX_STRING nam
>     comp->GetConfig = vid_enc_GetConfig;
>     comp->SetConfig = vid_enc_SetConfig;
>
> -   priv->screen = omx_get_screen();
> +   priv->screen = vl_get_screen("OMX_RENDER_NODE");
>     if (!priv->screen)
>        return OMX_ErrorInsufficientResources;
>
> @@ -296,7 +297,7 @@ static OMX_ERRORTYPE vid_enc_Destructor(OMX_COMPONENTTYPE
> *comp)
>        priv->t_pipe->destroy(priv->t_pipe);
>
>     if (priv->screen)
> -      omx_put_screen();
> +      vl_put_screen();
>
>     return omx_workaround_Destructor(comp);
>  }
> --
> 2.7.4
>
> _______________________________________________
> mesa-dev mailing list
> mesa-dev at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/mesa-dev
>
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