1 /**************************************************************************
3 * Copyright 2003 VMware, Inc.
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 VMWARE 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 **************************************************************************/
30 * Keith Whitwell <keithw@vmware.com>
37 #include "main/mtypes.h"
38 #include "program/program.h"
39 #include "pipe/p_state.h"
40 #include "st_context.h"
41 #include "st_glsl_to_tgsi.h"
48 #define ST_DOUBLE_ATTRIB_PLACEHOLDER 0xffffffff
50 /** Fragment program variant key */
51 struct st_fp_variant_key
53 struct st_context
*st
; /**< variants are per-context */
56 GLuint bitmap
:1; /**< glBitmap variant? */
58 /** for glDrawPixels */
59 GLuint drawpixels
:1; /**< glDrawPixels variant */
60 GLuint scaleAndBias
:1; /**< glDrawPixels w/ scale and/or bias? */
61 GLuint pixelMaps
:1; /**< glDrawPixels w/ pixel lookup map? */
62 GLuint drawpixels_z
:1; /**< glDrawPixels(GL_DEPTH) */
63 GLuint drawpixels_stencil
:1; /**< glDrawPixels(GL_STENCIL) */
65 /** for ARB_color_buffer_float */
68 /** for ARB_sample_shading */
69 GLuint persample_shading
:1;
74 * Variant of a fragment program.
78 /** Parameters which generated this version of fragment program */
79 struct st_fp_variant_key key
;
81 struct pipe_shader_state tgsi
;
83 /** Driver's compiled shader */
86 /** For glBitmap variants */
87 struct gl_program_parameter_list
*parameters
;
90 /** next in linked list */
91 struct st_fp_variant
*next
;
96 * Derived from Mesa gl_fragment_program:
98 struct st_fragment_program
100 struct gl_fragment_program Base
;
101 struct glsl_to_tgsi_visitor
* glsl_to_tgsi
;
103 struct st_fp_variant
*variants
;
108 /** Vertex program variant key */
109 struct st_vp_variant_key
111 struct st_context
*st
; /**< variants are per-context */
112 boolean passthrough_edgeflags
;
114 /** for ARB_color_buffer_float */
120 * This represents a vertex program, especially translated to match
121 * the inputs of a particular fragment shader.
125 /* Parameters which generated this translated version of a vertex
128 struct st_vp_variant_key key
;
131 * TGSI tokens (to later generate a 'draw' module shader for
132 * selection/feedback/rasterpos)
134 struct pipe_shader_state tgsi
;
136 /** Driver's compiled shader */
139 /** For using our private draw module (glRasterPos) */
140 struct draw_vertex_shader
*draw_shader
;
142 /** Next in linked list */
143 struct st_vp_variant
*next
;
145 /** similar to that in st_vertex_program, but with edgeflags info too */
151 * Derived from Mesa gl_fragment_program:
153 struct st_vertex_program
155 struct gl_vertex_program Base
; /**< The Mesa vertex program */
156 struct glsl_to_tgsi_visitor
* glsl_to_tgsi
;
158 /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
159 GLuint input_to_index
[VERT_ATTRIB_MAX
];
160 /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
161 GLuint index_to_input
[PIPE_MAX_SHADER_INPUTS
];
164 /** Maps VARYING_SLOT_x to slot */
165 GLuint result_to_output
[VARYING_SLOT_MAX
];
166 GLuint output_slot_to_attr
[VARYING_SLOT_MAX
];
167 ubyte output_semantic_name
[VARYING_SLOT_MAX
];
168 ubyte output_semantic_index
[VARYING_SLOT_MAX
];
171 /** List of translated variants of this vertex program.
173 struct st_vp_variant
*variants
;
178 /** Geometry program variant key */
179 struct st_gp_variant_key
181 struct st_context
*st
; /**< variants are per-context */
182 /* no other fields yet */
187 * Geometry program variant.
191 /* Parameters which generated this translated version of a vertex */
192 struct st_gp_variant_key key
;
196 struct st_gp_variant
*next
;
201 * Derived from Mesa gl_geometry_program:
203 struct st_geometry_program
205 struct gl_geometry_program Base
; /**< The Mesa geometry program */
206 struct glsl_to_tgsi_visitor
* glsl_to_tgsi
;
208 struct st_gp_variant
*variants
;
213 static inline struct st_fragment_program
*
214 st_fragment_program( struct gl_fragment_program
*fp
)
216 return (struct st_fragment_program
*)fp
;
220 static inline struct st_vertex_program
*
221 st_vertex_program( struct gl_vertex_program
*vp
)
223 return (struct st_vertex_program
*)vp
;
226 static inline struct st_geometry_program
*
227 st_geometry_program( struct gl_geometry_program
*gp
)
229 return (struct st_geometry_program
*)gp
;
233 st_reference_vertprog(struct st_context
*st
,
234 struct st_vertex_program
**ptr
,
235 struct st_vertex_program
*prog
)
237 _mesa_reference_program(st
->ctx
,
238 (struct gl_program
**) ptr
,
239 (struct gl_program
*) prog
);
243 st_reference_geomprog(struct st_context
*st
,
244 struct st_geometry_program
**ptr
,
245 struct st_geometry_program
*prog
)
247 _mesa_reference_program(st
->ctx
,
248 (struct gl_program
**) ptr
,
249 (struct gl_program
*) prog
);
253 st_reference_fragprog(struct st_context
*st
,
254 struct st_fragment_program
**ptr
,
255 struct st_fragment_program
*prog
)
257 _mesa_reference_program(st
->ctx
,
258 (struct gl_program
**) ptr
,
259 (struct gl_program
*) prog
);
263 * This defines mapping from Mesa VARYING_SLOTs to TGSI GENERIC slots.
265 static inline unsigned
266 st_get_generic_varying_index(struct st_context
*st
, GLuint attr
)
268 if (attr
>= VARYING_SLOT_VAR0
) {
269 if (st
->needs_texcoord_semantic
)
270 return attr
- VARYING_SLOT_VAR0
;
272 return 9 + (attr
- VARYING_SLOT_VAR0
);
274 if (attr
== VARYING_SLOT_PNTC
) {
275 assert(!st
->needs_texcoord_semantic
);
278 if (attr
>= VARYING_SLOT_TEX0
&& attr
<= VARYING_SLOT_TEX7
) {
279 assert(!st
->needs_texcoord_semantic
);
280 return attr
- VARYING_SLOT_TEX0
;
288 extern struct st_vp_variant
*
289 st_get_vp_variant(struct st_context
*st
,
290 struct st_vertex_program
*stvp
,
291 const struct st_vp_variant_key
*key
);
294 extern struct st_fp_variant
*
295 st_get_fp_variant(struct st_context
*st
,
296 struct st_fragment_program
*stfp
,
297 const struct st_fp_variant_key
*key
);
300 extern struct st_gp_variant
*
301 st_get_gp_variant(struct st_context
*st
,
302 struct st_geometry_program
*stgp
,
303 const struct st_gp_variant_key
*key
);
307 st_prepare_vertex_program(struct gl_context
*ctx
,
308 struct st_vertex_program
*stvp
);
311 st_prepare_fragment_program(struct gl_context
*ctx
,
312 struct st_fragment_program
*stfp
);
316 st_release_vp_variants( struct st_context
*st
,
317 struct st_vertex_program
*stvp
);
320 st_release_fp_variants( struct st_context
*st
,
321 struct st_fragment_program
*stfp
);
324 st_release_gp_variants(struct st_context
*st
,
325 struct st_geometry_program
*stgp
);
328 st_destroy_program_variants(struct st_context
*st
);
332 st_print_current_vertex_program(void);
335 st_precompile_shader_variant(struct st_context
*st
,
336 struct gl_program
*prog
);