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/**************************************************************************
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 *
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 * Copyright 2011 Advanced Micro Devices, Inc.
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 * All Rights Reserved.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the
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 * "Software"), to deal in the Software without restriction, including
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 * without limitation the rights to use, copy, modify, merge, publish,
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 * distribute, sub license, and/or sell copies of the Software, and to
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 * permit persons to whom the Software is furnished to do so, subject to
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 * the following conditions:
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 *
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 * The above copyright notice and this permission notice (including the
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 * next paragraph) shall be included in all copies or substantial portions
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 * of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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 * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
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 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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 *
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 **************************************************************************/
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/*
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 * Authors:
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 *      Christian König 
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 *
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 */
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#include 
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#include 
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#include 
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#include 
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#include "pipe/p_video_decoder.h"
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#include "util/u_memory.h"
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#include "util/u_video.h"
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#include "vl/vl_defines.h"
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#include "vl/vl_mpeg12_decoder.h"
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#include "r600_pipe.h"
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#include "radeon/radeon_uvd.h"
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#include "r600d.h"
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/**
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 * creates an video buffer with an UVD compatible memory layout
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 */
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struct pipe_video_buffer *r600_video_buffer_create(struct pipe_context *pipe,
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						   const struct pipe_video_buffer *tmpl)
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{
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	struct r600_context *ctx = (struct r600_context *)pipe;
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	struct r600_texture *resources[VL_NUM_COMPONENTS] = {};
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	struct radeon_surface* surfaces[VL_NUM_COMPONENTS] = {};
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	struct pb_buffer **pbs[VL_NUM_COMPONENTS] = {};
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	const enum pipe_format *resource_formats;
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	struct pipe_video_buffer template;
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	struct pipe_resource templ;
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	unsigned i, array_size;
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	assert(pipe);
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	/* first create the needed resources as "normal" textures */
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	resource_formats = vl_video_buffer_formats(pipe->screen, tmpl->buffer_format);
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	if (!resource_formats)
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		return NULL;
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	array_size = tmpl->interlaced ? 2 : 1;
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	template = *tmpl;
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	template.width = align(tmpl->width, VL_MACROBLOCK_WIDTH);
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	template.height = align(tmpl->height / array_size, VL_MACROBLOCK_HEIGHT);
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	vl_video_buffer_template(&templ, &template, resource_formats[0], 1, array_size, PIPE_USAGE_STATIC, 0);
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	if (ctx->chip_class < EVERGREEN || tmpl->interlaced)
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		templ.flags = R600_RESOURCE_FLAG_TRANSFER;
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	resources[0] = (struct r600_texture *)
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		pipe->screen->resource_create(pipe->screen, &templ);
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	if (!resources[0])
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		goto error;
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	if (resource_formats[1] != PIPE_FORMAT_NONE) {
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		vl_video_buffer_template(&templ, &template, resource_formats[1], 1, array_size, PIPE_USAGE_STATIC, 1);
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		if (ctx->chip_class < EVERGREEN || tmpl->interlaced)
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			templ.flags = R600_RESOURCE_FLAG_TRANSFER;
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		resources[1] = (struct r600_texture *)
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			pipe->screen->resource_create(pipe->screen, &templ);
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		if (!resources[1])
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			goto error;
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	}
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	if (resource_formats[2] != PIPE_FORMAT_NONE) {
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		vl_video_buffer_template(&templ, &template, resource_formats[2], 1, array_size, PIPE_USAGE_STATIC, 2);
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		if (ctx->chip_class < EVERGREEN || tmpl->interlaced)
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			templ.flags = R600_RESOURCE_FLAG_TRANSFER;
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		resources[2] = (struct r600_texture *)
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			pipe->screen->resource_create(pipe->screen, &templ);
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		if (!resources[2])
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			goto error;
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	}
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	for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
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		if (!resources[i])
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			continue;
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		pbs[i] = &resources[i]->resource.buf;
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		surfaces[i] = &resources[i]->surface;
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	}
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	ruvd_join_surfaces(ctx->ws, templ.bind, pbs, surfaces);
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	for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
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		if (!resources[i])
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			continue;
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		/* recreate the CS handle */
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		resources[i]->resource.cs_buf = ctx->ws->buffer_get_cs_handle(
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			resources[i]->resource.buf);
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	}
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	template.height *= array_size;
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	return vl_video_buffer_create_ex2(pipe, &template, (struct pipe_resource **)resources);
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error:
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	for (i = 0; i < VL_NUM_COMPONENTS; ++i)
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		pipe_resource_reference((struct pipe_resource **)&resources[i], NULL);
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	return NULL;
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}
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/* hw encode the number of memory banks */
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static uint32_t eg_num_banks(uint32_t nbanks)
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{
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	switch (nbanks) {
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	case 2:
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		return 0;
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	case 4:
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		return 1;
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	case 8:
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	default:
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		return 2;
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	case 16:
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		return 3;
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	}
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}
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/* set the decoding target buffer offsets */
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static struct radeon_winsys_cs_handle* r600_uvd_set_dtb(struct ruvd_msg *msg, struct vl_video_buffer *buf)
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{
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	struct r600_screen *rscreen = (struct r600_screen*)buf->base.context->screen;
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	struct r600_texture *luma = (struct r600_texture *)buf->resources[0];
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	struct r600_texture *chroma = (struct r600_texture *)buf->resources[1];
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	msg->body.decode.dt_field_mode = buf->base.interlaced;
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	msg->body.decode.dt_surf_tile_config |= RUVD_NUM_BANKS(eg_num_banks(rscreen->tiling_info.num_banks));
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	ruvd_set_dt_surfaces(msg, &luma->surface, &chroma->surface);
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	return luma->resource.cs_buf;
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}
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/* create decoder */
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struct pipe_video_decoder *r600_uvd_create_decoder(struct pipe_context *context,
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						   enum pipe_video_profile profile,
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						   enum pipe_video_entrypoint entrypoint,
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						   enum pipe_video_chroma_format chroma_format,
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						   unsigned width, unsigned height,
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						   unsigned max_references, bool expect_chunked_decode)
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{
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	struct r600_context *ctx = (struct r600_context *)context;
175
 
176
	return ruvd_create_decoder(context, profile, entrypoint, chroma_format,
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			 	   width, height, max_references, expect_chunked_decode,
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				   ctx->ws, r600_uvd_set_dtb);
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}
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int r600_uvd_get_video_param(struct pipe_screen *screen,
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			     enum pipe_video_profile profile,
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			     enum pipe_video_cap param)
184
{
185
	struct r600_screen *rscreen = (struct r600_screen *)screen;
186
 
187
	/* UVD 2.x limits */
188
	if (rscreen->family < CHIP_PALM) {
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		enum pipe_video_codec codec = u_reduce_video_profile(profile);
190
		switch (param) {
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		case PIPE_VIDEO_CAP_SUPPORTED:
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			/* no support for MPEG4 */
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	    		return codec != PIPE_VIDEO_CODEC_MPEG4;
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        	case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
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        	case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
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			/* and MPEG2 only with shaders */
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	    		return codec != PIPE_VIDEO_CODEC_MPEG12;
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		default:
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			break;
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		}
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	}
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203
	return ruvd_get_video_param(screen, profile, param);
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}