xref: /external/mesa3d/src/gallium/auxiliary/vl/vl_idct.h

/**************************************************************************
 *
 * Copyright 2010 Christian König
 * 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.
 *
 **************************************************************************/

#ifndef vl_idct_h
#define vl_idct_h

#include <pipe/p_state.h>

struct vl_idct
{
   struct pipe_context *pipe;

   unsigned max_blocks;

   struct pipe_viewport_state viewport;
   struct pipe_resource *vs_const_buf;
   struct pipe_framebuffer_state fb_state;

   struct pipe_resource *destination;

   void *vertex_elems_state;

   union
   {
      void *all[4];
      void *stage[2][2];
      struct {
         void *transpose, *source;
         void *matrix, *intermediate;
      } individual;
   } samplers;

   union
   {
      struct pipe_sampler_view *all[4];
      struct pipe_sampler_view *stage[2][2];
      struct {
         struct pipe_sampler_view *transpose, *source;
         struct pipe_sampler_view *matrix, *intermediate;
      } individual;
   } sampler_views;

   void *vs;
   void *transpose_fs, *matrix_fs, *eb_fs;

   union
   {
      struct pipe_resource *all[4];
      struct pipe_resource *stage[2][2];
      struct {
         struct pipe_resource *transpose, *source;
         struct pipe_resource *matrix, *intermediate;
      } individual;
   } textures;

   union
   {
      struct pipe_vertex_buffer all[2];
      struct { struct pipe_vertex_buffer quad, pos; } individual;
   } vertex_bufs;

   unsigned num_blocks;
   unsigned num_empty_blocks;

   struct pipe_transfer *tex_transfer;
   short *texels;

   struct pipe_transfer *vec_transfer;
   struct vertex2f *vectors;

   struct {
      struct pipe_surface *intermediate, *destination;
   } surfaces;
};

bool vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe, struct pipe_resource *dst);

void vl_idct_cleanup(struct vl_idct *idct);

void vl_idct_add_block(struct vl_idct *idct, unsigned x, unsigned y, short *block);

void vl_idct_flush(struct vl_idct *idct);

#endif