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      1 /*
      2  * Copyright 2012 Advanced Micro Devices, Inc.
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * on the rights to use, copy, modify, merge, publish, distribute, sub
      8  * license, and/or sell copies of the Software, and to permit persons to whom
      9  * the Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
     19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
     22  *
     23  * Authors:
     24  *	Tom Stellard <thomas.stellard (at) amd.com>
     25  *	Michel Dnzer <michel.daenzer (at) amd.com>
     26  *      Christian Knig <christian.koenig (at) amd.com>
     27  */
     28 
     29 #ifndef RADEONSI_SHADER_H
     30 #define RADEONSI_SHADER_H
     31 
     32 struct si_shader_io {
     33 	unsigned		name;
     34 	int			sid;
     35 	unsigned		param_offset;
     36 	unsigned		interpolate;
     37 	bool			centroid;
     38 };
     39 
     40 struct si_pipe_shader;
     41 
     42 struct si_pipe_shader_selector {
     43 	struct si_pipe_shader *current;
     44 
     45 	struct tgsi_token       *tokens;
     46 	struct pipe_stream_output_info  so;
     47 
     48 	unsigned	num_shaders;
     49 
     50 	/* PIPE_SHADER_[VERTEX|FRAGMENT|...] */
     51 	unsigned	type;
     52 
     53 	/* 1 when the shader contains
     54 	 * TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS, otherwise it's 0.
     55 	 * Used to determine whether we need to include nr_cbufs in the key */
     56 	unsigned	fs_write_all;
     57 };
     58 
     59 struct si_shader {
     60 	unsigned		ninput;
     61 	struct si_shader_io	input[32];
     62 
     63 	unsigned		noutput;
     64 	struct si_shader_io	output[32];
     65 
     66 	bool			uses_kill;
     67 	bool			fs_write_all;
     68 	unsigned		nr_cbufs;
     69 };
     70 
     71 struct si_pipe_shader {
     72 	struct si_pipe_shader_selector	*selector;
     73 	struct si_pipe_shader		*next_variant;
     74 	struct si_shader		shader;
     75 	struct si_pm4_state		*pm4;
     76 	struct si_resource		*bo;
     77 	unsigned			num_sgprs;
     78 	unsigned			num_vgprs;
     79 	unsigned			spi_ps_input_ena;
     80 	unsigned			sprite_coord_enable;
     81 	unsigned			so_strides[4];
     82 	unsigned			key;
     83 };
     84 
     85 /* radeonsi_shader.c */
     86 int si_pipe_shader_create(struct pipe_context *ctx, struct si_pipe_shader *shader);
     87 void si_pipe_shader_destroy(struct pipe_context *ctx, struct si_pipe_shader *shader);
     88 
     89 #endif
     90