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Diffstat (limited to 'src/mesa/state_tracker/st_program.h')
-rw-r--r-- | src/mesa/state_tracker/st_program.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_program.h b/src/mesa/state_tracker/st_program.h new file mode 100644 index 0000000000..1b3f75ca27 --- /dev/null +++ b/src/mesa/state_tracker/st_program.h @@ -0,0 +1,190 @@ +/************************************************************************** + * + * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#ifndef ST_PROGRAM_H +#define ST_PROGRAM_H + +#include "main/mtypes.h" +#include "shader/program.h" +#include "pipe/p_shader_tokens.h" + + +struct cso_fragment_shader; +struct cso_vertex_shader; +struct translated_vertex_program; + + +/** + * Derived from Mesa gl_fragment_program: + */ +struct st_fragment_program +{ + struct gl_fragment_program Base; + GLuint serialNo; + + struct pipe_shader_state tgsi; + void *driver_shader; + + /** Program prefixed with glBitmap prologue */ + struct st_fragment_program *bitmap_program; + uint bitmap_sampler; +}; + + + +struct st_vp_varient_key +{ + boolean passthrough_edgeflags; +}; + + +/** + * This represents a vertex program, especially translated to match + * the inputs of a particular fragment shader. + */ +struct st_vp_varient +{ + /* Parameters which generated this translated version of a vertex + * shader: + */ + struct st_vp_varient_key key; + + /** + * TGSI tokens (to later generate a 'draw' module shader for + * selection/feedback/rasterpos) + */ + struct pipe_shader_state tgsi; + + /** Driver's compiled shader */ + void *driver_shader; + + /** For using our private draw module (glRasterPos) */ + struct draw_vertex_shader *draw_shader; + + /** Next in linked list */ + struct st_vp_varient *next; + + /** similar to that in st_vertex_program, but with information about edgeflags too */ + GLuint num_inputs; +}; + + + + +/** + * Derived from Mesa gl_fragment_program: + */ +struct st_vertex_program +{ + struct gl_vertex_program Base; /**< The Mesa vertex program */ + GLuint serialNo, lastSerialNo; + + /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */ + GLuint input_to_index[VERT_ATTRIB_MAX]; + /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */ + GLuint index_to_input[PIPE_MAX_SHADER_INPUTS]; + GLuint num_inputs; + + /** Maps VERT_RESULT_x to slot */ + GLuint result_to_output[VERT_RESULT_MAX]; + ubyte output_semantic_name[VERT_RESULT_MAX]; + ubyte output_semantic_index[VERT_RESULT_MAX]; + GLuint num_outputs; + + /** List of translated varients of this vertex program. + */ + struct st_vp_varient *varients; +}; + + +static INLINE struct st_fragment_program * +st_fragment_program( struct gl_fragment_program *fp ) +{ + return (struct st_fragment_program *)fp; +} + + +static INLINE struct st_vertex_program * +st_vertex_program( struct gl_vertex_program *vp ) +{ + return (struct st_vertex_program *)vp; +} + + +static INLINE void +st_reference_vertprog(struct st_context *st, + struct st_vertex_program **ptr, + struct st_vertex_program *prog) +{ + _mesa_reference_program(st->ctx, + (struct gl_program **) ptr, + (struct gl_program *) prog); +} + +static INLINE void +st_reference_fragprog(struct st_context *st, + struct st_fragment_program **ptr, + struct st_fragment_program *prog) +{ + _mesa_reference_program(st->ctx, + (struct gl_program **) ptr, + (struct gl_program *) prog); +} + + +extern void +st_translate_fragment_program(struct st_context *st, + struct st_fragment_program *fp); + + +/* Called after program string change, discard all previous + * compilation results. + */ +extern void +st_prepare_vertex_program(struct st_context *st, + struct st_vertex_program *stvp); + +extern struct st_vp_varient * +st_translate_vertex_program(struct st_context *st, + struct st_vertex_program *stvp, + const struct st_vp_varient_key *key); + +void +st_vp_release_varients( struct st_context *st, + struct st_vertex_program *stvp ); + +extern void +st_print_shaders(GLcontext *ctx); + + +#endif |