2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
3 * Joakim Sindholt <opensource@zhasha.com>
4 * Copyright 2009 Marek Olšák <maraeo@gmail.com>
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * on the rights to use, copy, modify, merge, publish, distribute, sub
10 * license, and/or sell copies of the Software, and to permit persons to whom
11 * the Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
23 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
28 #include "pipe/p_state.h"
29 #include "tgsi/tgsi_scan.h"
30 #include "radeon_code.h"
31 #include "r300_shader_semantics.h"
33 struct r300_fragment_shader_code
{
34 struct tgsi_shader_info info
;
35 struct r300_shader_semantics inputs
;
37 /* Whether the shader was replaced by a dummy one due to a shader
38 * compilation failure. */
41 /* Numbers of constants for each type. */
42 unsigned externals_count
;
43 unsigned immediates_count
;
44 unsigned rc_state_count
;
46 /* Registers for fragment depth output setup. */
47 uint32_t fg_depth_src
; /* R300_FG_DEPTH_SRC: 0x4bd8 */
48 uint32_t us_out_w
; /* R300_US_W_FMT: 0x46b4 */
50 struct r300_fragment_program_external_state compare_state
;
51 struct rX00_fragment_program_code code
;
53 unsigned cb_code_size
;
56 struct r300_fragment_shader_code
* next
;
59 struct r300_fragment_shader
{
61 struct pipe_shader_state state
;
63 /* Currently-bound fragment shader. */
64 struct r300_fragment_shader_code
* shader
;
66 /* List of the same shaders compiled with different texture-compare
68 struct r300_fragment_shader_code
* first
;
71 void r300_shader_read_fs_inputs(struct tgsi_shader_info
* info
,
72 struct r300_shader_semantics
* fs_inputs
);
74 /* Return TRUE if the shader was switched and should be re-emitted. */
75 boolean
r300_pick_fragment_shader(struct r300_context
* r300
);
77 static INLINE boolean
r300_fragment_shader_writes_depth(struct r300_fragment_shader
*fs
)
81 return (fs
->shader
->code
.writes_depth
) ? TRUE
: FALSE
;
84 #endif /* R300_FS_H */