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

 *

 * Copyright 2009 Younes Manton.

 * 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.

 *

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

#include 

#include 

#include 

#include "pipe/p_screen.h"

#include "pipe/p_video_decoder.h"

#include "pipe/p_state.h"

#include "util/u_memory.h"

#include "util/u_math.h"

#include "util/u_format.h"

#include "util/u_sampler.h"

#include "util/u_rect.h"

#include "vl/vl_winsys.h"

#include "xvmc_private.h"

#define FOURCC_RGB 0x0000003

#define FOURCC_AI44 0x34344941

#define FOURCC_IA44 0x34344149

static enum pipe_format XvIDToPipe(int xvimage_id)

{

   switch (xvimage_id) {

      case FOURCC_RGB:

         return PIPE_FORMAT_B8G8R8X8_UNORM;

      case FOURCC_AI44:

         return PIPE_FORMAT_A4R4_UNORM;

      case FOURCC_IA44:

         return PIPE_FORMAT_R4A4_UNORM;

      default:

         XVMC_MSG(XVMC_ERR, "[XvMC] Unrecognized Xv image ID 0x%08X.\n", xvimage_id);

         return PIPE_FORMAT_NONE;

   }

}

static unsigned NumPaletteEntries4XvID(int xvimage_id)

{

   switch (xvimage_id) {

      case FOURCC_RGB:

         return 0;

      case FOURCC_AI44:

      case FOURCC_IA44:

         return 16;

      default:

         XVMC_MSG(XVMC_ERR, "[XvMC] Unrecognized Xv image ID 0x%08X.\n", xvimage_id);

         return 0;

   }

}

static int PipeToComponentOrder(enum pipe_format format, char *component_order)

{

   assert(component_order);

   switch (format) {

      case PIPE_FORMAT_B8G8R8X8_UNORM:

         return 0;

      case PIPE_FORMAT_R4A4_UNORM:

      case PIPE_FORMAT_A4R4_UNORM:

         component_order[0] = 'Y';

         component_order[1] = 'U';

         component_order[2] = 'V';

         component_order[3] = 'A';

         return 4;

      default:

         XVMC_MSG(XVMC_ERR, "[XvMC] Unrecognized PIPE_FORMAT 0x%08X.\n", format);

         component_order[0] = 0;

         component_order[1] = 0;

         component_order[2] = 0;

         component_order[3] = 0;

         return 0;

   }

}

static Status Validate(Display *dpy, XvPortID port, int surface_type_id, int xvimage_id)

{

   XvImageFormatValues *subpictures;

   int num_subpics;

   unsigned int i;

   subpictures = XvMCListSubpictureTypes(dpy, port, surface_type_id, &num_subpics);

   if (num_subpics < 1) {

      free(subpictures);

      return BadMatch;

   }

   if (!subpictures)

      return BadAlloc;

   for (i = 0; i < num_subpics; ++i) {

      if (subpictures[i].id == xvimage_id) {

         XVMC_MSG(XVMC_TRACE, "[XvMC] Found requested subpicture format.\n" \

                              "[XvMC]   port=%u\n" \

                              "[XvMC]   surface id=0x%08X\n" \

                              "[XvMC]   image id=0x%08X\n" \

                              "[XvMC]   type=%08X\n" \

                              "[XvMC]   byte order=%08X\n" \

                              "[XvMC]   bits per pixel=%u\n" \

                              "[XvMC]   format=%08X\n" \

                              "[XvMC]   num planes=%d\n",

                              port, surface_type_id, xvimage_id, subpictures[i].type, subpictures[i].byte_order,

                              subpictures[i].bits_per_pixel, subpictures[i].format, subpictures[i].num_planes);

         if (subpictures[i].type == XvRGB) {

            XVMC_MSG(XVMC_TRACE, "[XvMC]   depth=%d\n" \

                                 "[XvMC]   red mask=0x%08X\n" \

                                 "[XvMC]   green mask=0x%08X\n" \

                                 "[XvMC]   blue mask=0x%08X\n",

                                 subpictures[i].depth, subpictures[i].red_mask,

                                 subpictures[i].green_mask, subpictures[i].blue_mask);

         }

         else if (subpictures[i].type == XvYUV) {

            XVMC_MSG(XVMC_TRACE, "[XvMC]   y sample bits=0x%08X\n" \

                                 "[XvMC]   u sample bits=0x%08X\n" \

                                 "[XvMC]   v sample bits=0x%08X\n" \

                                 "[XvMC]   horz y period=%u\n" \

                                 "[XvMC]   horz u period=%u\n" \

                                 "[XvMC]   horz v period=%u\n" \

                                 "[XvMC]   vert y period=%u\n" \

                                 "[XvMC]   vert u period=%u\n" \

                                 "[XvMC]   vert v period=%u\n",

                                 subpictures[i].y_sample_bits, subpictures[i].u_sample_bits, subpictures[i].v_sample_bits,

                                 subpictures[i].horz_y_period, subpictures[i].horz_u_period, subpictures[i].horz_v_period,

                                 subpictures[i].vert_y_period, subpictures[i].vert_u_period, subpictures[i].vert_v_period);

         }

         break;

      }

   }

   free(subpictures);

   return i < num_subpics ? Success : BadMatch;

}

static void

upload_sampler(struct pipe_context *pipe, struct pipe_sampler_view *dst,

               const struct pipe_box *dst_box, const void *src, unsigned src_stride,

               unsigned src_x, unsigned src_y)

{

   struct pipe_transfer *transfer;

   void *map;

   map = pipe->transfer_map(pipe, dst->texture, 0, PIPE_TRANSFER_WRITE,

                            dst_box, &transfer);

   if (!map)

      return;

   util_copy_rect(map, dst->texture->format, transfer->stride, 0, 0,

                  dst_box->width, dst_box->height,

                  src, src_stride, src_x, src_y);

   pipe->transfer_unmap(pipe, transfer);

}

PUBLIC

Status XvMCCreateSubpicture(Display *dpy, XvMCContext *context, XvMCSubpicture *subpicture,

                            unsigned short width, unsigned short height, int xvimage_id)

{

   XvMCContextPrivate *context_priv;

   XvMCSubpicturePrivate *subpicture_priv;

   struct pipe_context *pipe;

   struct pipe_resource tex_templ, *tex;

   struct pipe_sampler_view sampler_templ;

   Status ret;

   XVMC_MSG(XVMC_TRACE, "[XvMC] Creating subpicture %p.\n", subpicture);

   assert(dpy);

   if (!context)

      return XvMCBadContext;

   context_priv = context->privData;

   pipe = context_priv->pipe;

   if (!subpicture)

      return XvMCBadSubpicture;

   if (width > context_priv->subpicture_max_width ||

       height > context_priv->subpicture_max_height)

      return BadValue;

   ret = Validate(dpy, context->port, context->surface_type_id, xvimage_id);

   if (ret != Success)

      return ret;

   subpicture_priv = CALLOC(1, sizeof(XvMCSubpicturePrivate));

   if (!subpicture_priv)

      return BadAlloc;

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

   tex_templ.target = PIPE_TEXTURE_2D;

   tex_templ.format = XvIDToPipe(xvimage_id);

   tex_templ.last_level = 0;

   if (pipe->screen->get_video_param(pipe->screen,

                                     PIPE_VIDEO_PROFILE_UNKNOWN,

                                     PIPE_VIDEO_CAP_NPOT_TEXTURES)) {

      tex_templ.width0 = width;

      tex_templ.height0 = height;

   }

   else {

      tex_templ.width0 = util_next_power_of_two(width);

      tex_templ.height0 = util_next_power_of_two(height);

   }

   tex_templ.depth0 = 1;

   tex_templ.array_size = 1;

   tex_templ.usage = PIPE_USAGE_DYNAMIC;

   tex_templ.bind = PIPE_BIND_SAMPLER_VIEW;

   tex_templ.flags = 0;

   tex = pipe->screen->resource_create(pipe->screen, &tex_templ);

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

   u_sampler_view_default_template(&sampler_templ, tex, tex->format);

   subpicture_priv->sampler = pipe->create_sampler_view(pipe, tex, &sampler_templ);

   pipe_resource_reference(&tex, NULL);

   if (!subpicture_priv->sampler) {

      FREE(subpicture_priv);

      return BadAlloc;

   }

   subpicture_priv->context = context;

   subpicture->subpicture_id = XAllocID(dpy);

   subpicture->context_id = context->context_id;

   subpicture->xvimage_id = xvimage_id;

   subpicture->width = width;

   subpicture->height = height;

   subpicture->num_palette_entries = NumPaletteEntries4XvID(xvimage_id);

   subpicture->entry_bytes = PipeToComponentOrder(tex_templ.format, subpicture->component_order);

   subpicture->privData = subpicture_priv;

   if (subpicture->num_palette_entries > 0) {

      tex_templ.target = PIPE_TEXTURE_1D;

      tex_templ.format = PIPE_FORMAT_R8G8B8X8_UNORM;

      tex_templ.width0 = subpicture->num_palette_entries;

      tex_templ.height0 = 1;

      tex_templ.usage = PIPE_USAGE_STATIC;

      tex = pipe->screen->resource_create(pipe->screen, &tex_templ);

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

      u_sampler_view_default_template(&sampler_templ, tex, tex->format);

      sampler_templ.swizzle_a = PIPE_SWIZZLE_ONE;

      subpicture_priv->palette = pipe->create_sampler_view(pipe, tex, &sampler_templ);

      pipe_resource_reference(&tex, NULL);

      if (!subpicture_priv->sampler) {

         FREE(subpicture_priv);

         return BadAlloc;

      }

   }

   SyncHandle();

   XVMC_MSG(XVMC_TRACE, "[XvMC] Subpicture %p created.\n", subpicture);

   return Success;

}

PUBLIC

Status XvMCClearSubpicture(Display *dpy, XvMCSubpicture *subpicture, short x, short y,

                           unsigned short width, unsigned short height, unsigned int color)

{

   XvMCSubpicturePrivate *subpicture_priv;

   XvMCContextPrivate *context_priv;

   struct pipe_context *pipe;

   struct pipe_sampler_view *dst;

   struct pipe_box dst_box = {x, y, 0, width, height, 1};

   struct pipe_transfer *transfer;

   union util_color uc;

   void *map;

   assert(dpy);

   if (!subpicture)

      return XvMCBadSubpicture;

   /* Convert color to float */

   util_format_read_4f(PIPE_FORMAT_B8G8R8A8_UNORM,

                       uc.f, 1, &color, 4,

                       0, 0, 1, 1);

   subpicture_priv = subpicture->privData;

   context_priv = subpicture_priv->context->privData;

   pipe = context_priv->pipe;

   dst = subpicture_priv->sampler;

   /* TODO: Assert clear rect is within bounds? Or clip? */

   map = pipe->transfer_map(pipe, dst->texture, 0, PIPE_TRANSFER_WRITE,

                            &dst_box, &transfer);

   if (!map)

      return XvMCBadSubpicture;

   util_fill_rect(map, dst->texture->format, transfer->stride, 0, 0,

                  dst_box.width, dst_box.height, &uc);

   pipe->transfer_unmap(pipe, transfer);

   return Success;

}

PUBLIC

Status XvMCCompositeSubpicture(Display *dpy, XvMCSubpicture *subpicture, XvImage *image,

                               short srcx, short srcy, unsigned short width, unsigned short height,

                               short dstx, short dsty)

{

   XvMCSubpicturePrivate *subpicture_priv;

   XvMCContextPrivate *context_priv;

   struct pipe_context *pipe;

   struct pipe_box dst_box = {dstx, dsty, 0, width, height, 1};

   unsigned src_stride;

   XVMC_MSG(XVMC_TRACE, "[XvMC] Compositing subpicture %p.\n", subpicture);

   assert(dpy);

   if (!subpicture)

      return XvMCBadSubpicture;

   assert(image);

   if (subpicture->xvimage_id != image->id)

      return BadMatch;

   /* No planar support for now */

   if (image->num_planes != 1)

      return BadMatch;

   subpicture_priv = subpicture->privData;

   context_priv = subpicture_priv->context->privData;

   pipe = context_priv->pipe;

   /* clipping should be done by upload_sampler and regardles what the documentation

   says image->pitches[0] doesn't seems to be in bytes, so don't use it */

   src_stride = image->width * util_format_get_blocksize(subpicture_priv->sampler->texture->format);

   upload_sampler(pipe, subpicture_priv->sampler, &dst_box, image->data, src_stride, srcx, srcy);

   XVMC_MSG(XVMC_TRACE, "[XvMC] Subpicture %p composited.\n", subpicture);

   return Success;

}

PUBLIC

Status XvMCDestroySubpicture(Display *dpy, XvMCSubpicture *subpicture)

{

   XvMCSubpicturePrivate *subpicture_priv;

   XVMC_MSG(XVMC_TRACE, "[XvMC] Destroying subpicture %p.\n", subpicture);

   assert(dpy);

   if (!subpicture)

      return XvMCBadSubpicture;

   subpicture_priv = subpicture->privData;

   pipe_sampler_view_reference(&subpicture_priv->sampler, NULL);

   pipe_sampler_view_reference(&subpicture_priv->palette, NULL);

   FREE(subpicture_priv);

   XVMC_MSG(XVMC_TRACE, "[XvMC] Subpicture %p destroyed.\n", subpicture);

   return Success;

}

PUBLIC

Status XvMCSetSubpicturePalette(Display *dpy, XvMCSubpicture *subpicture, unsigned char *palette)

{

   XvMCSubpicturePrivate *subpicture_priv;

   XvMCContextPrivate *context_priv;

   struct pipe_context *pipe;

   struct pipe_box dst_box = {0, 0, 0, 0, 1, 1};

   assert(dpy);

   assert(palette);

   if (!subpicture)

      return XvMCBadSubpicture;

   subpicture_priv = subpicture->privData;

   context_priv = subpicture_priv->context->privData;

   pipe = context_priv->pipe;

   dst_box.width = subpicture->num_palette_entries;

   upload_sampler(pipe, subpicture_priv->palette, &dst_box, palette, 0, 0, 0);

   XVMC_MSG(XVMC_TRACE, "[XvMC] Palette of Subpicture %p set.\n", subpicture);

   return Success;

}

PUBLIC

Status XvMCBlendSubpicture(Display *dpy, XvMCSurface *target_surface, XvMCSubpicture *subpicture,

                           short subx, short suby, unsigned short subw, unsigned short subh,

                           short surfx, short surfy, unsigned short surfw, unsigned short surfh)

{

   struct u_rect src_rect = {subx, subx + subw, suby, suby + subh};

   struct u_rect dst_rect = {surfx, surfx + surfw, surfy, surfy + surfh};

   XvMCSurfacePrivate *surface_priv;

   XvMCSubpicturePrivate *subpicture_priv;

   XVMC_MSG(XVMC_TRACE, "[XvMC] Associating subpicture %p with surface %p.\n", subpicture, target_surface);

   assert(dpy);

   if (!target_surface)

      return XvMCBadSurface;

   if (!subpicture)

      return XvMCBadSubpicture;

   if (target_surface->context_id != subpicture->context_id)

      return BadMatch;

   /* TODO: Verify against subpicture independent scaling */

   surface_priv = target_surface->privData;

   subpicture_priv = subpicture->privData;

   /* TODO: Assert rects are within bounds? Or clip? */

   subpicture_priv->src_rect = src_rect;

   subpicture_priv->dst_rect = dst_rect;

   surface_priv->subpicture = subpicture;

   subpicture_priv->surface = target_surface;

   return Success;

}

PUBLIC

Status XvMCBlendSubpicture2(Display *dpy, XvMCSurface *source_surface, XvMCSurface *target_surface,

                            XvMCSubpicture *subpicture, short subx, short suby, unsigned short subw, unsigned short subh,

                            short surfx, short surfy, unsigned short surfw, unsigned short surfh)

{

   assert(dpy);

   if (!source_surface || !target_surface)

      return XvMCBadSurface;

   if (!subpicture)

      return XvMCBadSubpicture;

   if (source_surface->context_id != subpicture->context_id)

      return BadMatch;

   if (source_surface->context_id != subpicture->context_id)

      return BadMatch;

   /* TODO: Assert rects are within bounds? Or clip? */

   return Success;

}

PUBLIC

Status XvMCSyncSubpicture(Display *dpy, XvMCSubpicture *subpicture)

{

   assert(dpy);

   if (!subpicture)

      return XvMCBadSubpicture;

   return Success;

}

PUBLIC

Status XvMCFlushSubpicture(Display *dpy, XvMCSubpicture *subpicture)

{

   assert(dpy);

   if (!subpicture)

      return XvMCBadSubpicture;

   return Success;

}

PUBLIC

Status XvMCGetSubpictureStatus(Display *dpy, XvMCSubpicture *subpicture, int *status)

{

   assert(dpy);

   if (!subpicture)

      return XvMCBadSubpicture;

   assert(status);

   /* TODO */

   *status = 0;

   return Success;

}