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

 *

 * Copyright 2011 Advanced Micro Devices, Inc.

 * 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 THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.

 *

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

/*

 * Authors:

 *      Christian König 

 *

 */

#include 

#include 

#include 

#include 

#include "pipe/p_video_decoder.h"

#include "util/u_memory.h"

#include "util/u_video.h"

#include "vl/vl_defines.h"

#include "vl/vl_mpeg12_decoder.h"

#include "radeonsi_pipe.h"

#include "radeon/radeon_uvd.h"

#include "sid.h"

/**

 * creates an video buffer with an UVD compatible memory layout

 */

struct pipe_video_buffer *radeonsi_video_buffer_create(struct pipe_context *pipe,

						       const struct pipe_video_buffer *tmpl)

{

	struct r600_context *ctx = (struct r600_context *)pipe;

	struct r600_resource_texture *resources[VL_NUM_COMPONENTS] = {};

	struct radeon_surface *surfaces[VL_NUM_COMPONENTS] = {};

	struct pb_buffer **pbs[VL_NUM_COMPONENTS] = {};

	const enum pipe_format *resource_formats;

	struct pipe_video_buffer template;

	struct pipe_resource templ;

	unsigned i, array_size;

	assert(pipe);

	/* first create the needed resources as "normal" textures */

	resource_formats = vl_video_buffer_formats(pipe->screen, tmpl->buffer_format);

	if (!resource_formats)

		return NULL;

	array_size = tmpl->interlaced ? 2 : 1;

	template = *tmpl;

	template.width = align(tmpl->width, VL_MACROBLOCK_WIDTH);

	template.height = align(tmpl->height / array_size, VL_MACROBLOCK_HEIGHT);

	vl_video_buffer_template(&templ, &template, resource_formats[0], 1, array_size, PIPE_USAGE_STATIC, 0);

	/* TODO: Setting the transfer flag is only a workaround till we get tiling working */

	templ.flags = R600_RESOURCE_FLAG_TRANSFER;

	resources[0] = (struct r600_resource_texture *)

		pipe->screen->resource_create(pipe->screen, &templ);

	if (!resources[0])

		goto error;

	if (resource_formats[1] != PIPE_FORMAT_NONE) {

		vl_video_buffer_template(&templ, &template, resource_formats[1], 1, array_size, PIPE_USAGE_STATIC, 1);

		templ.flags = R600_RESOURCE_FLAG_TRANSFER;

		resources[1] = (struct r600_resource_texture *)

			pipe->screen->resource_create(pipe->screen, &templ);

		if (!resources[1])

			goto error;

	}

	if (resource_formats[2] != PIPE_FORMAT_NONE) {

		vl_video_buffer_template(&templ, &template, resource_formats[2], 1, array_size, PIPE_USAGE_STATIC, 2);

		templ.flags = R600_RESOURCE_FLAG_TRANSFER;

		resources[2] = (struct r600_resource_texture *)

			pipe->screen->resource_create(pipe->screen, &templ);

		if (!resources[2])

			goto error;

	}

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

		if (!resources[i])

			continue;

		surfaces[i] = & resources[i]->surface;

		pbs[i] = &resources[i]->resource.buf;

	}

	ruvd_join_surfaces(ctx->ws, templ.bind, pbs, surfaces);

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

		if (!resources[i])

			continue;

		/* recreate the CS handle */

		resources[i]->resource.cs_buf = ctx->ws->buffer_get_cs_handle(

			resources[i]->resource.buf);

	}

	template.height *= array_size;

	return vl_video_buffer_create_ex2(pipe, &template, (struct pipe_resource **)resources);

error:

	for (i = 0; i < VL_NUM_COMPONENTS; ++i)

		pipe_resource_reference((struct pipe_resource **)&resources[i], NULL);

	return NULL;

}

/* set the decoding target buffer offsets */

static struct radeon_winsys_cs_handle* radeonsi_uvd_set_dtb(struct ruvd_msg *msg, struct vl_video_buffer *buf)

{

	struct r600_resource_texture *luma = (struct r600_resource_texture *)buf->resources[0];

	struct r600_resource_texture *chroma = (struct r600_resource_texture *)buf->resources[1];

	msg->body.decode.dt_field_mode = buf->base.interlaced;

	ruvd_set_dt_surfaces(msg, &luma->surface, &chroma->surface);

	return luma->resource.cs_buf;

}

/**

 * creates an UVD compatible decoder

 */

struct pipe_video_decoder *radeonsi_uvd_create_decoder(struct pipe_context *context,

						       enum pipe_video_profile profile,

						       enum pipe_video_entrypoint entrypoint,

						       enum pipe_video_chroma_format chroma_format,

						       unsigned width, unsigned height,

						       unsigned max_references, bool expect_chunked_decode)

{

	struct r600_context *ctx = (struct r600_context *)context;

	return ruvd_create_decoder(context, profile, entrypoint, chroma_format,

				   width, height, max_references, expect_chunked_decode,

				   ctx->ws, radeonsi_uvd_set_dtb);

}