1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * 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, sub license, 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 portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
29 * Generate fragment programs to implement pixel transfer ops, such as
30 * scale/bias, colormatrix, colortable, convolution...
36 #include "main/imports.h"
37 #include "main/image.h"
38 #include "main/macros.h"
39 #include "shader/program.h"
40 #include "shader/prog_instruction.h"
41 #include "shader/prog_parameter.h"
42 #include "shader/prog_print.h"
44 #include "st_context.h"
50 GLuint scaleAndBias
:1;
54 GLfloat Maps
[3][256][4];
57 pipeline_stage Stages
[STAGE_MAX
];
58 GLboolean StagesUsed
[STAGE_MAX
];
59 GLfloat Scale1
[4], Bias1
[4];
60 GLfloat Scale2
[4], Bias2
[4];
66 is_identity(const GLfloat m
[16])
69 for (i
= 0; i
< 16; i
++) {
70 const int row
= i
% 4, col
= i
/ 4;
71 const float val
= (row
== col
);
80 make_state_key(GLcontext
*ctx
, struct state_key
*key
)
84 memset(key
, 0, sizeof(*key
));
86 if (ctx
->Pixel
.RedBias
!= 0.0 || ctx
->Pixel
.RedScale
!= 1.0 ||
87 ctx
->Pixel
.GreenBias
!= 0.0 || ctx
->Pixel
.GreenScale
!= 1.0 ||
88 ctx
->Pixel
.BlueBias
!= 0.0 || ctx
->Pixel
.BlueScale
!= 1.0 ||
89 ctx
->Pixel
.AlphaBias
!= 0.0 || ctx
->Pixel
.AlphaScale
!= 1.0) {
90 key
->scaleAndBias
= 1;
93 if (!is_identity(ctx
->ColorMatrixStack
.Top
->m
)) {
104 * Returns a fragment program which implements the current pixel transfer ops.
106 static struct gl_fragment_program
*
107 get_pixel_transfer_program(GLcontext
*ctx
, const struct state_key
*key
)
109 struct prog_instruction inst
[MAX_INST
];
110 struct gl_program_parameter_list
*params
;
111 struct gl_fragment_program
*fp
;
114 fp
= (struct gl_fragment_program
*)
115 ctx
->Driver
.NewProgram(ctx
, GL_FRAGMENT_PROGRAM_ARB
, 0);
119 params
= _mesa_new_parameter_list();
121 /* TEX result.color, fragment.texcoord[0], texture[0], 2D; */
122 _mesa_init_instructions(inst
+ ic
, 1);
123 inst
[ic
].Opcode
= OPCODE_TEX
;
124 inst
[ic
].DstReg
.File
= PROGRAM_OUTPUT
;
125 inst
[ic
].DstReg
.Index
= FRAG_RESULT_COLR
;
126 inst
[ic
].SrcReg
[0].File
= PROGRAM_INPUT
;
127 inst
[ic
].SrcReg
[0].Index
= FRAG_ATTRIB_TEX0
;
128 inst
[ic
].TexSrcUnit
= 0;
129 inst
[ic
].TexSrcTarget
= TEXTURE_2D_INDEX
;
131 fp
->Base
.InputsRead
= (1 << FRAG_ATTRIB_TEX0
);
132 fp
->Base
.OutputsWritten
= (1 << FRAG_RESULT_COLR
);
134 /* MAD result.color, result.color, scale, bias; */
135 if (key
->scaleAndBias
) {
136 static const gl_state_index scale_state
[STATE_LENGTH
] =
137 { STATE_INTERNAL
, STATE_PT_SCALE
, 0, 0, 0 };
138 static const gl_state_index bias_state
[STATE_LENGTH
] =
139 { STATE_INTERNAL
, STATE_PT_BIAS
, 0, 0, 0 };
140 GLfloat scale
[4], bias
[4];
141 GLint scale_p
, bias_p
;
143 scale
[0] = ctx
->Pixel
.RedScale
;
144 scale
[1] = ctx
->Pixel
.GreenScale
;
145 scale
[2] = ctx
->Pixel
.BlueScale
;
146 scale
[3] = ctx
->Pixel
.AlphaScale
;
147 bias
[0] = ctx
->Pixel
.RedBias
;
148 bias
[1] = ctx
->Pixel
.GreenBias
;
149 bias
[2] = ctx
->Pixel
.BlueBias
;
150 bias
[3] = ctx
->Pixel
.AlphaBias
;
152 scale_p
= _mesa_add_state_reference(params
, scale_state
);
153 bias_p
= _mesa_add_state_reference(params
, bias_state
);
155 _mesa_init_instructions(inst
+ ic
, 1);
156 inst
[ic
].Opcode
= OPCODE_MAD
;
157 inst
[ic
].DstReg
.File
= PROGRAM_OUTPUT
;
158 inst
[ic
].DstReg
.Index
= FRAG_RESULT_COLR
;
159 inst
[ic
].SrcReg
[0].File
= PROGRAM_OUTPUT
;
160 inst
[ic
].SrcReg
[0].Index
= FRAG_RESULT_COLR
;
161 inst
[ic
].SrcReg
[1].File
= PROGRAM_STATE_VAR
;
162 inst
[ic
].SrcReg
[1].Index
= scale_p
;
163 inst
[ic
].SrcReg
[2].File
= PROGRAM_STATE_VAR
;
164 inst
[ic
].SrcReg
[2].Index
= bias_p
;
168 if (key
->colorMatrix
) {
169 static const gl_state_index row0_state
[STATE_LENGTH
] =
170 { STATE_COLOR_MATRIX
, 0, 0, 0, 0 };
171 static const gl_state_index row1_state
[STATE_LENGTH
] =
172 { STATE_COLOR_MATRIX
, 0, 1, 1, 0 };
173 static const gl_state_index row2_state
[STATE_LENGTH
] =
174 { STATE_COLOR_MATRIX
, 0, 2, 2, 0 };
175 static const gl_state_index row3_state
[STATE_LENGTH
] =
176 { STATE_COLOR_MATRIX
, 0, 3, 3, 0 };
178 GLint row0_p
= _mesa_add_state_reference(params
, row0_state
);
179 GLint row1_p
= _mesa_add_state_reference(params
, row1_state
);
180 GLint row2_p
= _mesa_add_state_reference(params
, row2_state
);
181 GLint row3_p
= _mesa_add_state_reference(params
, row3_state
);
183 /* MOV temp0, result.color; */
184 _mesa_init_instructions(inst
+ ic
, 1);
185 inst
[ic
].Opcode
= OPCODE_MOV
;
186 inst
[ic
].DstReg
.File
= PROGRAM_TEMPORARY
;
187 inst
[ic
].DstReg
.Index
= 0;
188 inst
[ic
].SrcReg
[0].File
= PROGRAM_OUTPUT
;
189 inst
[ic
].SrcReg
[0].Index
= FRAG_RESULT_COLR
;
192 /* DP4 result.color.x, tmp0, matrow0; */
193 _mesa_init_instructions(inst
+ ic
, 1);
194 inst
[ic
].Opcode
= OPCODE_DP4
;
195 inst
[ic
].DstReg
.File
= PROGRAM_OUTPUT
;
196 inst
[ic
].DstReg
.Index
= FRAG_RESULT_COLR
;
197 inst
[ic
].DstReg
.WriteMask
= WRITEMASK_X
;
198 inst
[ic
].SrcReg
[0].File
= PROGRAM_TEMPORARY
;
199 inst
[ic
].SrcReg
[0].Index
= 0;
200 inst
[ic
].SrcReg
[1].File
= PROGRAM_STATE_VAR
;
201 inst
[ic
].SrcReg
[1].Index
= row0_p
;
204 /* DP4 result.color.y, tmp0, matrow1; */
205 _mesa_init_instructions(inst
+ ic
, 1);
206 inst
[ic
].Opcode
= OPCODE_DP4
;
207 inst
[ic
].DstReg
.File
= PROGRAM_OUTPUT
;
208 inst
[ic
].DstReg
.Index
= FRAG_RESULT_COLR
;
209 inst
[ic
].DstReg
.WriteMask
= WRITEMASK_Y
;
210 inst
[ic
].SrcReg
[0].File
= PROGRAM_TEMPORARY
;
211 inst
[ic
].SrcReg
[0].Index
= 0;
212 inst
[ic
].SrcReg
[1].File
= PROGRAM_STATE_VAR
;
213 inst
[ic
].SrcReg
[1].Index
= row1_p
;
216 /* DP4 result.color.z, tmp0, matrow2; */
217 _mesa_init_instructions(inst
+ ic
, 1);
218 inst
[ic
].Opcode
= OPCODE_DP4
;
219 inst
[ic
].DstReg
.File
= PROGRAM_OUTPUT
;
220 inst
[ic
].DstReg
.Index
= FRAG_RESULT_COLR
;
221 inst
[ic
].DstReg
.WriteMask
= WRITEMASK_Z
;
222 inst
[ic
].SrcReg
[0].File
= PROGRAM_TEMPORARY
;
223 inst
[ic
].SrcReg
[0].Index
= 0;
224 inst
[ic
].SrcReg
[1].File
= PROGRAM_STATE_VAR
;
225 inst
[ic
].SrcReg
[1].Index
= row2_p
;
228 /* DP4 result.color.w, tmp0, matrow3; */
229 _mesa_init_instructions(inst
+ ic
, 1);
230 inst
[ic
].Opcode
= OPCODE_DP4
;
231 inst
[ic
].DstReg
.File
= PROGRAM_OUTPUT
;
232 inst
[ic
].DstReg
.Index
= FRAG_RESULT_COLR
;
233 inst
[ic
].DstReg
.WriteMask
= WRITEMASK_W
;
234 inst
[ic
].SrcReg
[0].File
= PROGRAM_TEMPORARY
;
235 inst
[ic
].SrcReg
[0].Index
= 0;
236 inst
[ic
].SrcReg
[1].File
= PROGRAM_STATE_VAR
;
237 inst
[ic
].SrcReg
[1].Index
= row3_p
;
242 _mesa_init_instructions(inst
+ ic
, 1);
243 inst
[ic
].Opcode
= OPCODE_END
;
246 assert(ic
<= MAX_INST
);
249 fp
->Base
.Instructions
= _mesa_alloc_instructions(ic
);
250 if (!fp
->Base
.Instructions
) {
251 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
252 "generating pixel transfer program");
256 _mesa_copy_instructions(fp
->Base
.Instructions
, inst
, ic
);
257 fp
->Base
.NumInstructions
= ic
;
258 fp
->Base
.Parameters
= params
;
261 printf("========= pixel transfer prog\n");
262 _mesa_print_program(&fp
->Base
);
263 _mesa_print_parameter_list(fp
->Base
.Parameters
);
272 update_pixel_transfer(struct st_context
*st
)
274 struct state_key key
;
275 struct gl_fragment_program
*fp
;
277 make_state_key(st
->ctx
, &key
);
279 fp
= (struct gl_fragment_program
*)
280 _mesa_search_program_cache(st
->pixel_transfer_cache
, &key
, sizeof(key
));
282 fp
= get_pixel_transfer_program(st
->ctx
, &key
);
283 _mesa_program_cache_insert(st
->ctx
, st
->pixel_transfer_cache
,
284 &key
, sizeof(key
), &fp
->Base
);
287 st
->pixel_transfer_program
= fp
;
292 const struct st_tracked_state st_update_pixel_transfer
= {
293 .name
= "st_update_pixel_transfer",
295 .mesa
= _NEW_PIXEL
| _NEW_COLOR_MATRIX
,
298 .update
= update_pixel_transfer