1 /**************************************************************************
3 * Copyright 2003 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 **************************************************************************/
30 * Keith Whitwell <keith@tungstengraphics.com>
37 #include "main/mtypes.h"
38 #include "program/program.h"
39 #include "pipe/p_state.h"
40 #include "st_context.h"
43 /** Fragment program variant key */
44 struct st_fp_variant_key
46 struct st_context *st; /**< variants are per-context */
49 GLuint bitmap:1; /**< glBitmap variant? */
51 /** for glDrawPixels */
52 GLuint drawpixels:1; /**< glDrawPixels variant */
53 GLuint scaleAndBias:1; /**< glDrawPixels w/ scale and/or bias? */
54 GLuint pixelMaps:1; /**< glDrawPixels w/ pixel lookup map? */
55 GLuint drawpixels_z:1; /**< glDrawPixels(GL_DEPTH) */
56 GLuint drawpixels_stencil:1; /**< glDrawPixels(GL_STENCIL) */
61 * Variant of a fragment program.
65 /** Parameters which generated this version of fragment program */
66 struct st_fp_variant_key key;
68 /** Driver's compiled shader */
71 /** For glBitmap variants */
72 struct gl_program_parameter_list *parameters;
75 /** next in linked list */
76 struct st_fp_variant *next;
81 * Derived from Mesa gl_fragment_program:
83 struct st_fragment_program
85 struct gl_fragment_program Base;
87 struct pipe_shader_state tgsi;
89 struct st_fp_variant *variants;
94 /** Vertex program variant key */
95 struct st_vp_variant_key
97 struct st_context *st; /**< variants are per-context */
98 boolean passthrough_edgeflags;
103 * This represents a vertex program, especially translated to match
104 * the inputs of a particular fragment shader.
108 /* Parameters which generated this translated version of a vertex
111 struct st_vp_variant_key key;
114 * TGSI tokens (to later generate a 'draw' module shader for
115 * selection/feedback/rasterpos)
117 struct pipe_shader_state tgsi;
119 /** Driver's compiled shader */
122 /** For using our private draw module (glRasterPos) */
123 struct draw_vertex_shader *draw_shader;
125 /** Next in linked list */
126 struct st_vp_variant *next;
128 /** similar to that in st_vertex_program, but with edgeflags info too */
134 * Derived from Mesa gl_fragment_program:
136 struct st_vertex_program
138 struct gl_vertex_program Base; /**< The Mesa vertex program */
140 /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
141 GLuint input_to_index[VERT_ATTRIB_MAX];
142 /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
143 GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
146 /** Maps VERT_RESULT_x to slot */
147 GLuint result_to_output[VERT_RESULT_MAX];
148 ubyte output_semantic_name[VERT_RESULT_MAX];
149 ubyte output_semantic_index[VERT_RESULT_MAX];
152 /** List of translated variants of this vertex program.
154 struct st_vp_variant *variants;
159 /** Geometry program variant key */
160 struct st_gp_variant_key
162 struct st_context *st; /**< variants are per-context */
163 /* no other fields yet */
168 * Geometry program variant.
172 /* Parameters which generated this translated version of a vertex */
173 struct st_gp_variant_key key;
177 struct st_gp_variant *next;
182 * Derived from Mesa gl_geometry_program:
184 struct st_geometry_program
186 struct gl_geometry_program Base; /**< The Mesa geometry program */
188 /** map GP input back to VP output */
189 GLuint input_map[PIPE_MAX_SHADER_INPUTS];
191 /** maps a Mesa GEOM_ATTRIB_x to a packed TGSI input index */
192 GLuint input_to_index[GEOM_ATTRIB_MAX];
193 /** maps a TGSI input index back to a Mesa GEOM_ATTRIB_x */
194 GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
198 GLuint input_to_slot[GEOM_ATTRIB_MAX]; /**< Maps GEOM_ATTRIB_x to slot */
199 GLuint num_input_slots;
201 ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
202 ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
204 struct pipe_shader_state tgsi;
206 struct st_gp_variant *variants;
211 static INLINE struct st_fragment_program *
212 st_fragment_program( struct gl_fragment_program *fp )
214 return (struct st_fragment_program *)fp;
218 static INLINE struct st_vertex_program *
219 st_vertex_program( struct gl_vertex_program *vp )
221 return (struct st_vertex_program *)vp;
224 static INLINE struct st_geometry_program *
225 st_geometry_program( struct gl_geometry_program *gp )
227 return (struct st_geometry_program *)gp;
231 st_reference_vertprog(struct st_context *st,
232 struct st_vertex_program **ptr,
233 struct st_vertex_program *prog)
235 _mesa_reference_program(st->ctx,
236 (struct gl_program **) ptr,
237 (struct gl_program *) prog);
241 st_reference_geomprog(struct st_context *st,
242 struct st_geometry_program **ptr,
243 struct st_geometry_program *prog)
245 _mesa_reference_program(st->ctx,
246 (struct gl_program **) ptr,
247 (struct gl_program *) prog);
251 st_reference_fragprog(struct st_context *st,
252 struct st_fragment_program **ptr,
253 struct st_fragment_program *prog)
255 _mesa_reference_program(st->ctx,
256 (struct gl_program **) ptr,
257 (struct gl_program *) prog);
261 extern struct st_vp_variant *
262 st_get_vp_variant(struct st_context *st,
263 struct st_vertex_program *stvp,
264 const struct st_vp_variant_key *key);
267 extern struct st_fp_variant *
268 st_get_fp_variant(struct st_context *st,
269 struct st_fragment_program *stfp,
270 const struct st_fp_variant_key *key);
273 extern struct st_gp_variant *
274 st_get_gp_variant(struct st_context *st,
275 struct st_geometry_program *stgp,
276 const struct st_gp_variant_key *key);
281 st_release_vp_variants( struct st_context *st,
282 struct st_vertex_program *stvp );
285 st_release_fp_variants( struct st_context *st,
286 struct st_fragment_program *stfp );
289 st_release_gp_variants(struct st_context *st,
290 struct st_geometry_program *stgp);
294 st_print_shaders(struct gl_context *ctx);
297 st_destroy_program_variants(struct st_context *st);