2 * Copyright (C) 2008 Nicolai Haehnle.
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial
16 * portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 #ifndef __RADEON_PROGRAM_H_
29 #define __RADEON_PROGRAM_H_
31 #include "main/glheader.h"
32 #include "main/macros.h"
33 #include "main/enums.h"
34 #include "shader/program.h"
35 #include "shader/prog_instruction.h"
45 PROGRAM_BUILTIN
= PROGRAM_FILE_MAX
/**< not a real register, but a special swizzle constant */
49 OPCODE_REPL_ALPHA
= MAX_OPCODE
/**< used in paired instructions */
52 #define SWIZZLE_0000 MAKE_SWIZZLE4(SWIZZLE_ZERO, SWIZZLE_ZERO, SWIZZLE_ZERO, SWIZZLE_ZERO)
53 #define SWIZZLE_1111 MAKE_SWIZZLE4(SWIZZLE_ONE, SWIZZLE_ONE, SWIZZLE_ONE, SWIZZLE_ONE)
55 static inline GLuint
get_swz(GLuint swz
, GLuint idx
)
59 return GET_SWZ(swz
, idx
);
62 static inline GLuint
combine_swizzles4(GLuint src
, GLuint swz_x
, GLuint swz_y
, GLuint swz_z
, GLuint swz_w
)
66 ret
|= get_swz(src
, swz_x
);
67 ret
|= get_swz(src
, swz_y
) << 3;
68 ret
|= get_swz(src
, swz_z
) << 6;
69 ret
|= get_swz(src
, swz_w
) << 9;
74 static inline GLuint
combine_swizzles(GLuint src
, GLuint swz
)
78 ret
|= get_swz(src
, GET_SWZ(swz
, SWIZZLE_X
));
79 ret
|= get_swz(src
, GET_SWZ(swz
, SWIZZLE_Y
)) << 3;
80 ret
|= get_swz(src
, GET_SWZ(swz
, SWIZZLE_Z
)) << 6;
81 ret
|= get_swz(src
, GET_SWZ(swz
, SWIZZLE_W
)) << 9;
88 * Transformation context that is passed to local transformations.
90 * Care must be taken with some operations during transformation,
91 * e.g. finding new temporary registers must use @ref radeonFindFreeTemporary
93 struct radeon_transform_context
{
95 struct gl_program
*Program
;
96 struct prog_instruction
*OldInstructions
;
97 GLuint OldNumInstructions
;
101 * A transformation that can be passed to \ref radeonLocalTransform.
103 * The function will be called once for each instruction.
104 * It has to either emit the appropriate transformed code for the instruction
105 * and return GL_TRUE, or return GL_FALSE if it doesn't understand the
108 * The function gets passed the userData as last parameter.
110 struct radeon_program_transformation
{
111 GLboolean (*function
)(
112 struct radeon_transform_context
*,
113 struct prog_instruction
*,
118 void radeonLocalTransform(
120 struct gl_program
*program
,
121 int num_transformations
,
122 struct radeon_program_transformation
* transformations
);
125 * Find a usable free temporary register during program transformation
127 GLint
radeonFindFreeTemporary(struct radeon_transform_context
*ctx
);
129 struct prog_instruction
*radeonAppendInstructions(struct gl_program
*program
, int count
);