r600_shader.h revision 01e04c3f 
1/*
2 * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
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#ifndef R600_SHADER_H
24#define R600_SHADER_H
25
26#include "r600_asm.h"
27
28
29#ifdef __cplusplus
30extern "C" {
31#endif
32
33/* Valid shader configurations:
34 *
35 * API shaders       VS | TCS | TES | GS |pass| PS
36 * are compiled as:     |     |     |    |thru|
37 *                      |     |     |    |    |
38 * Only VS & PS:     VS | --  | --  | -- | -- | PS
39 * With GS:          ES | --  | --  | GS | VS | PS
40 * With Tessel.:     LS | HS  | VS  | -- | -- | PS
41 * With both:        LS | HS  | ES  | GS | VS | PS
42 */
43
44struct r600_shader_io {
45	unsigned		name;
46	unsigned		gpr;
47	unsigned		done;
48	int			sid;
49	int			spi_sid;
50	unsigned		interpolate;
51	unsigned		ij_index;
52	unsigned		interpolate_location; //  TGSI_INTERPOLATE_LOC_CENTER, CENTROID, SAMPLE
53	unsigned		lds_pos; /* for evergreen */
54	unsigned		back_color_input;
55	unsigned		write_mask;
56	int			ring_offset;
57};
58
59struct r600_shader_atomic {
60	unsigned start, end;
61	unsigned buffer_id;
62	unsigned hw_idx;
63	unsigned array_id;
64};
65
66struct r600_shader {
67	unsigned		processor_type;
68	struct r600_bytecode		bc;
69	unsigned		ninput;
70	unsigned		noutput;
71	unsigned                nhwatomic;
72	unsigned		nlds;
73	unsigned		nsys_inputs;
74	struct r600_shader_io	input[64];
75	struct r600_shader_io	output[64];
76	struct r600_shader_atomic atomics[8];
77	unsigned                nhwatomic_ranges;
78	boolean			uses_kill;
79	boolean			fs_write_all;
80	boolean			two_side;
81	boolean			needs_scratch_space;
82	/* Number of color outputs in the TGSI shader,
83	 * sometimes it could be higher than nr_cbufs (bug?).
84	 * Also with writes_all property on eg+ it will be set to max CB number */
85	unsigned		nr_ps_max_color_exports;
86	/* Real number of ps color exports compiled in the bytecode */
87	unsigned		nr_ps_color_exports;
88	unsigned                ps_color_export_mask;
89	unsigned                ps_export_highest;
90	/* bit n is set if the shader writes gl_ClipDistance[n] */
91	unsigned		cc_dist_mask;
92	unsigned		clip_dist_write;
93	unsigned                cull_dist_write;
94	boolean			vs_position_window_space;
95	/* flag is set if the shader writes VS_OUT_MISC_VEC (e.g. for PSIZE) */
96	boolean			vs_out_misc_write;
97	boolean			vs_out_point_size;
98	boolean			vs_out_layer;
99	boolean			vs_out_viewport;
100	boolean			vs_out_edgeflag;
101	boolean			has_txq_cube_array_z_comp;
102	boolean			uses_tex_buffers;
103	boolean                 gs_prim_id_input;
104	boolean                 gs_tri_strip_adj_fix;
105	uint8_t			ps_conservative_z;
106
107	/* Size in bytes of a data item in the ring(s) (single vertex data).
108	   Stages with only one ring items 123 will be set to 0. */
109	unsigned		ring_item_sizes[4];
110
111	unsigned		indirect_files;
112	unsigned		max_arrays;
113	unsigned		num_arrays;
114	unsigned		vs_as_es;
115	unsigned		vs_as_ls;
116	unsigned		vs_as_gs_a;
117	unsigned                tes_as_es;
118	unsigned                tcs_prim_mode;
119	unsigned                ps_prim_id_input;
120	struct r600_shader_array * arrays;
121
122	boolean			uses_doubles;
123	boolean                 uses_atomics;
124	boolean			uses_images;
125	boolean			uses_helper_invocation;
126	uint8_t                 atomic_base;
127	uint8_t			rat_base;
128	uint8_t                 image_size_const_offset;
129};
130
131union r600_shader_key {
132	struct {
133		unsigned	nr_cbufs:4;
134		unsigned        first_atomic_counter:4;
135		unsigned        image_size_const_offset:5;
136		unsigned	color_two_side:1;
137		unsigned	alpha_to_one:1;
138	} ps;
139	struct {
140		unsigned	prim_id_out:8;
141		unsigned        first_atomic_counter:4;
142		unsigned	as_es:1; /* export shader */
143		unsigned	as_ls:1; /* local shader */
144		unsigned	as_gs_a:1;
145	} vs;
146	struct {
147		unsigned        first_atomic_counter:4;
148		unsigned	as_es:1;
149	} tes;
150	struct {
151		unsigned        first_atomic_counter:4;
152		unsigned	prim_mode:3;
153	} tcs;
154	struct {
155		unsigned        first_atomic_counter:4;
156		unsigned        tri_strip_adj_fix:1;
157	} gs;
158};
159
160struct r600_shader_array {
161	unsigned gpr_start;
162	unsigned gpr_count;
163	unsigned comp_mask;
164};
165
166struct r600_pipe_shader {
167	struct r600_pipe_shader_selector *selector;
168	struct r600_pipe_shader	*next_variant;
169	/* for GS - corresponding copy shader (installed as VS) */
170	struct r600_pipe_shader *gs_copy_shader;
171	struct r600_shader	shader;
172	struct r600_command_buffer command_buffer; /* register writes */
173	struct r600_resource	*bo;
174	unsigned		sprite_coord_enable;
175	unsigned		flatshade;
176	unsigned		pa_cl_vs_out_cntl;
177	unsigned		nr_ps_color_outputs;
178	unsigned                ps_color_export_mask;
179
180	union r600_shader_key	key;
181	unsigned		db_shader_control;
182	unsigned		ps_depth_export;
183	unsigned		enabled_stream_buffers_mask;
184	unsigned		scratch_space_needed; /* size of scratch space (if > 0) counted in vec4 */
185};
186
187/* return the table index 0-5 for TGSI_INTERPOLATE_LINEAR/PERSPECTIVE and
188 TGSI_INTERPOLATE_LOC_CENTER/SAMPLE/COUNT. Other input values return -1. */
189int eg_get_interpolator_index(unsigned interpolate, unsigned location);
190
191int r600_get_lds_unique_index(unsigned semantic_name, unsigned index);
192
193#ifdef __cplusplus
194}  // extern "C"
195#endif
196
197
198#endif
199