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/**************************************************************************

 *

 * Copyright 2010 Thomas Balling Sørensen.

 * 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 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 

#include 

#include "util/u_debug.h"

#include "util/u_memory.h"

#include "vdpau_private.h"

/**

 * Create a VdpPresentationQueue.

 */

VdpStatus

vlVdpPresentationQueueCreate(VdpDevice device,

                             VdpPresentationQueueTarget presentation_queue_target,

                             VdpPresentationQueue *presentation_queue)

{

   vlVdpPresentationQueue *pq = NULL;

   VdpStatus ret;

   if (!presentation_queue)

      return VDP_STATUS_INVALID_POINTER;

   vlVdpDevice *dev = vlGetDataHTAB(device);

   if (!dev)

      return VDP_STATUS_INVALID_HANDLE;

   vlVdpPresentationQueueTarget *pqt = vlGetDataHTAB(presentation_queue_target);

   if (!pqt)

      return VDP_STATUS_INVALID_HANDLE;

   if (dev != pqt->device)

      return VDP_STATUS_HANDLE_DEVICE_MISMATCH;

   pq = CALLOC(1, sizeof(vlVdpPresentationQueue));

   if (!pq)

      return VDP_STATUS_RESOURCES;

   DeviceReference(&pq->device, dev);

   pq->drawable = pqt->drawable;

   pipe_mutex_lock(dev->mutex);

   if (!vl_compositor_init_state(&pq->cstate, dev->context)) {

      pipe_mutex_unlock(dev->mutex);

      ret = VDP_STATUS_ERROR;

      goto no_compositor;

   }

   pipe_mutex_unlock(dev->mutex);

   *presentation_queue = vlAddDataHTAB(pq);

   if (*presentation_queue == 0) {

      ret = VDP_STATUS_ERROR;

      goto no_handle;

   }

   return VDP_STATUS_OK;

no_handle:

no_compositor:

   DeviceReference(&pq->device, NULL);

   FREE(pq);

   return ret;

}

/**

 * Destroy a VdpPresentationQueue.

 */

VdpStatus

vlVdpPresentationQueueDestroy(VdpPresentationQueue presentation_queue)

{

   vlVdpPresentationQueue *pq;

   pq = vlGetDataHTAB(presentation_queue);

   if (!pq)

      return VDP_STATUS_INVALID_HANDLE;

   pipe_mutex_lock(pq->device->mutex);

   vl_compositor_cleanup_state(&pq->cstate);

   pipe_mutex_unlock(pq->device->mutex);

   vlRemoveDataHTAB(presentation_queue);

   DeviceReference(&pq->device, NULL);

   FREE(pq);

   return VDP_STATUS_OK;

}

/**

 * Configure the background color setting.

 */

VdpStatus

vlVdpPresentationQueueSetBackgroundColor(VdpPresentationQueue presentation_queue,

                                         VdpColor *const background_color)

{

   vlVdpPresentationQueue *pq;

   union pipe_color_union color;

   if (!background_color)

      return VDP_STATUS_INVALID_POINTER;

   pq = vlGetDataHTAB(presentation_queue);

   if (!pq)

      return VDP_STATUS_INVALID_HANDLE;

   color.f[0] = background_color->red;

   color.f[1] = background_color->green;

   color.f[2] = background_color->blue;

   color.f[3] = background_color->alpha;

   pipe_mutex_lock(pq->device->mutex);

   vl_compositor_set_clear_color(&pq->cstate, &color);

   pipe_mutex_unlock(pq->device->mutex);

   return VDP_STATUS_OK;

}

/**

 * Retrieve the current background color setting.

 */

VdpStatus

vlVdpPresentationQueueGetBackgroundColor(VdpPresentationQueue presentation_queue,

                                         VdpColor *const background_color)

{

   vlVdpPresentationQueue *pq;

   union pipe_color_union color;

   if (!background_color)

      return VDP_STATUS_INVALID_POINTER;

   pq = vlGetDataHTAB(presentation_queue);

   if (!pq)

      return VDP_STATUS_INVALID_HANDLE;

   pipe_mutex_lock(pq->device->mutex);

   vl_compositor_get_clear_color(&pq->cstate, &color);

   pipe_mutex_unlock(pq->device->mutex);

   background_color->red = color.f[0];

   background_color->green = color.f[1];

   background_color->blue = color.f[2];

   background_color->alpha = color.f[3];

   return VDP_STATUS_OK;

}

/**

 * Retrieve the presentation queue's "current" time.

 */

VdpStatus

vlVdpPresentationQueueGetTime(VdpPresentationQueue presentation_queue,

                              VdpTime *current_time)

{

   vlVdpPresentationQueue *pq;

   if (!current_time)

      return VDP_STATUS_INVALID_POINTER;

   pq = vlGetDataHTAB(presentation_queue);

   if (!pq)

      return VDP_STATUS_INVALID_HANDLE;

   pipe_mutex_lock(pq->device->mutex);

   *current_time = vl_screen_get_timestamp(pq->device->vscreen, pq->drawable);

   pipe_mutex_unlock(pq->device->mutex);

   return VDP_STATUS_OK;

}

/**

 * Enter a surface into the presentation queue.

 */

VdpStatus

vlVdpPresentationQueueDisplay(VdpPresentationQueue presentation_queue,

                              VdpOutputSurface surface,

                              uint32_t clip_width,

                              uint32_t clip_height,

                              VdpTime  earliest_presentation_time)

{

   static int dump_window = -1;

   vlVdpPresentationQueue *pq;

   vlVdpOutputSurface *surf;

   struct pipe_context *pipe;

   struct pipe_resource *tex;

   struct pipe_surface surf_templ, *surf_draw;

   struct u_rect src_rect, dst_clip, *dirty_area;

   struct vl_compositor *compositor;

   struct vl_compositor_state *cstate;

   pq = vlGetDataHTAB(presentation_queue);

   if (!pq)

      return VDP_STATUS_INVALID_HANDLE;

   surf = vlGetDataHTAB(surface);

   if (!surf)

      return VDP_STATUS_INVALID_HANDLE;

   pipe = pq->device->context;

   compositor = &pq->device->compositor;

   cstate = &pq->cstate;

   pipe_mutex_lock(pq->device->mutex);

   tex = vl_screen_texture_from_drawable(pq->device->vscreen, pq->drawable);

   if (!tex) {

      pipe_mutex_unlock(pq->device->mutex);

      return VDP_STATUS_INVALID_HANDLE;

   }

   dirty_area = vl_screen_get_dirty_area(pq->device->vscreen);

   memset(&surf_templ, 0, sizeof(surf_templ));

   surf_templ.format = tex->format;

   surf_draw = pipe->create_surface(pipe, tex, &surf_templ);

   dst_clip.x0 = 0;

   dst_clip.y0 = 0;

   dst_clip.x1 = clip_width ? clip_width : surf_draw->width;

   dst_clip.y1 = clip_height ? clip_height : surf_draw->height;

   if (pq->device->delayed_rendering.surface == surface &&

       dst_clip.x1 == surf_draw->width && dst_clip.y1 == surf_draw->height) {

      // TODO: we correctly support the clipping here, but not the pq background color in the clipped area....

      cstate = pq->device->delayed_rendering.cstate;

      vl_compositor_set_dst_clip(cstate, &dst_clip);

      vlVdpResolveDelayedRendering(pq->device, surf_draw, dirty_area);

   } else {

      vlVdpResolveDelayedRendering(pq->device, NULL, NULL);

      src_rect.x0 = 0;

      src_rect.y0 = 0;

      src_rect.x1 = surf_draw->width;

      src_rect.y1 = surf_draw->height;

      vl_compositor_clear_layers(cstate);

      vl_compositor_set_rgba_layer(cstate, compositor, 0, surf->sampler_view, &src_rect, NULL, NULL);

      vl_compositor_set_dst_clip(cstate, &dst_clip);

      vl_compositor_render(cstate, compositor, surf_draw, dirty_area, true);

   }

   vl_screen_set_next_timestamp(pq->device->vscreen, earliest_presentation_time);

   pipe->screen->flush_frontbuffer

   (

      pipe->screen, tex, 0, 0,

      vl_screen_get_private(pq->device->vscreen), NULL

   );

   pipe->screen->fence_reference(pipe->screen, &surf->fence, NULL);

   pipe->flush(pipe, &surf->fence, 0);

   pq->last_surf = surf;

   if (dump_window == -1) {

      dump_window = debug_get_num_option("VDPAU_DUMP", 0);

   }

   if (dump_window) {

      static unsigned int framenum = 0;

      char cmd[256];

      if (framenum) {

         sprintf(cmd, "xwd -id %d -silent -out vdpau_frame_%08d.xwd", (int)pq->drawable, framenum);

         if (system(cmd) != 0)

            VDPAU_MSG(VDPAU_ERR, "[VDPAU] Dumping surface %d failed.\n", surface);

      }

      framenum++;

   }

   pipe_resource_reference(&tex, NULL);

   pipe_surface_reference(&surf_draw, NULL);

   pipe_mutex_unlock(pq->device->mutex);

   return VDP_STATUS_OK;

}

/**

 * Wait for a surface to finish being displayed.

 */

VdpStatus

vlVdpPresentationQueueBlockUntilSurfaceIdle(VdpPresentationQueue presentation_queue,

                                            VdpOutputSurface surface,

                                            VdpTime *first_presentation_time)

{

   vlVdpPresentationQueue *pq;

   vlVdpOutputSurface *surf;

   struct pipe_screen *screen;

   if (!first_presentation_time)

      return VDP_STATUS_INVALID_POINTER;

   pq = vlGetDataHTAB(presentation_queue);

   if (!pq)

      return VDP_STATUS_INVALID_HANDLE;

   surf = vlGetDataHTAB(surface);

   if (!surf)

      return VDP_STATUS_INVALID_HANDLE;

   pipe_mutex_lock(pq->device->mutex);

   if (surf->fence) {

      screen = pq->device->vscreen->pscreen;

      screen->fence_finish(screen, surf->fence, PIPE_TIMEOUT_INFINITE);

      screen->fence_reference(screen, &surf->fence, NULL);

   }

   pipe_mutex_unlock(pq->device->mutex);

   return vlVdpPresentationQueueGetTime(presentation_queue, first_presentation_time);

}

/**

 * Poll the current queue status of a surface.

 */

VdpStatus

vlVdpPresentationQueueQuerySurfaceStatus(VdpPresentationQueue presentation_queue,

                                         VdpOutputSurface surface,

                                         VdpPresentationQueueStatus *status,

                                         VdpTime *first_presentation_time)

{

   vlVdpPresentationQueue *pq;

   vlVdpOutputSurface *surf;

   struct pipe_screen *screen;

   if (!(status && first_presentation_time))

      return VDP_STATUS_INVALID_POINTER;

   pq = vlGetDataHTAB(presentation_queue);

   if (!pq)

      return VDP_STATUS_INVALID_HANDLE;

   surf = vlGetDataHTAB(surface);

   if (!surf)

      return VDP_STATUS_INVALID_HANDLE;

   *first_presentation_time = 0;

   if (!surf->fence) {

      if (pq->last_surf == surf)

         *status = VDP_PRESENTATION_QUEUE_STATUS_VISIBLE;

      else

         *status = VDP_PRESENTATION_QUEUE_STATUS_IDLE;

   } else {

      pipe_mutex_lock(pq->device->mutex);

      screen = pq->device->vscreen->pscreen;

      if (screen->fence_signalled(screen, surf->fence)) {

         screen->fence_reference(screen, &surf->fence, NULL);

         *status = VDP_PRESENTATION_QUEUE_STATUS_VISIBLE;

         pipe_mutex_unlock(pq->device->mutex);

         // We actually need to query the timestamp of the last VSYNC event from the hardware

         vlVdpPresentationQueueGetTime(presentation_queue, first_presentation_time);

         *first_presentation_time += 1;

      } else {

         *status = VDP_PRESENTATION_QUEUE_STATUS_QUEUED;

         pipe_mutex_unlock(pq->device->mutex);

      }

   }

   return VDP_STATUS_OK;

}