| /************************************************************************** |
| * |
| * Copyright 2007 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 DRAW_VS_H |
| #define DRAW_VS_H |
| |
| #include "draw_context.h" |
| #include "draw_private.h" |
| #include "draw_vertex.h" |
| |
| |
| struct draw_context; |
| struct pipe_shader_state; |
| |
| struct draw_variant_input |
| { |
| enum pipe_format format; |
| unsigned buffer; |
| unsigned offset; |
| unsigned instance_divisor; |
| }; |
| |
| struct draw_variant_output |
| { |
| enum attrib_emit format; /* output format */ |
| unsigned vs_output:8; /* which vertex shader output is this? */ |
| unsigned offset:24; /* offset into output vertex */ |
| }; |
| |
| struct draw_variant_element { |
| struct draw_variant_input in; |
| struct draw_variant_output out; |
| }; |
| |
| struct draw_vs_variant_key { |
| unsigned output_stride; |
| unsigned nr_elements:8; /* max2(nr_inputs, nr_outputs) */ |
| unsigned nr_inputs:8; |
| unsigned nr_outputs:8; |
| unsigned viewport:1; |
| unsigned clip:1; |
| unsigned const_vbuffers:5; |
| struct draw_variant_element element[PIPE_MAX_ATTRIBS]; |
| }; |
| |
| struct draw_vs_variant; |
| |
| |
| struct draw_vs_variant { |
| struct draw_vs_variant_key key; |
| |
| struct draw_vertex_shader *vs; |
| |
| void (*set_buffer)( struct draw_vs_variant *, |
| unsigned i, |
| const void *ptr, |
| unsigned stride, |
| unsigned max_stride ); |
| |
| void (PIPE_CDECL *run_linear)( struct draw_vs_variant *shader, |
| unsigned start, |
| unsigned count, |
| void *output_buffer ); |
| |
| void (PIPE_CDECL *run_elts)( struct draw_vs_variant *shader, |
| const unsigned *elts, |
| unsigned count, |
| void *output_buffer ); |
| |
| void (*destroy)( struct draw_vs_variant * ); |
| }; |
| |
| |
| /** |
| * Private version of the compiled vertex_shader |
| */ |
| struct draw_vertex_shader { |
| struct draw_context *draw; |
| |
| /* This member will disappear shortly: |
| */ |
| struct pipe_shader_state state; |
| |
| struct tgsi_shader_info info; |
| unsigned position_output; |
| unsigned edgeflag_output; |
| unsigned clipvertex_output; |
| unsigned clipdistance_output[2]; |
| /* Extracted from shader: |
| */ |
| const float (*immediates)[4]; |
| |
| /* |
| */ |
| struct draw_vs_variant *variant[16]; |
| unsigned nr_variants; |
| unsigned last_variant; |
| struct draw_vs_variant *(*create_variant)( struct draw_vertex_shader *shader, |
| const struct draw_vs_variant_key *key ); |
| |
| |
| void (*prepare)( struct draw_vertex_shader *shader, |
| struct draw_context *draw ); |
| |
| /* Run the shader - this interface will get cleaned up in the |
| * future: |
| */ |
| void (*run_linear)( struct draw_vertex_shader *shader, |
| const float (*input)[4], |
| float (*output)[4], |
| const void *constants[PIPE_MAX_CONSTANT_BUFFERS], |
| const unsigned const_size[PIPE_MAX_CONSTANT_BUFFERS], |
| unsigned count, |
| unsigned input_stride, |
| unsigned output_stride ); |
| |
| |
| void (*delete)( struct draw_vertex_shader * ); |
| }; |
| |
| |
| struct draw_vs_variant * |
| draw_vs_lookup_variant( struct draw_vertex_shader *base, |
| const struct draw_vs_variant_key *key ); |
| |
| |
| /******************************************************************************** |
| * Internal functions: |
| */ |
| |
| struct draw_vertex_shader * |
| draw_create_vs_exec(struct draw_context *draw, |
| const struct pipe_shader_state *templ); |
| |
| struct draw_vertex_shader * |
| draw_create_vs_ppc(struct draw_context *draw, |
| const struct pipe_shader_state *templ); |
| |
| |
| struct draw_vs_variant_key; |
| struct draw_vertex_shader; |
| |
| #if HAVE_LLVM |
| struct draw_vertex_shader * |
| draw_create_vs_llvm(struct draw_context *draw, |
| const struct pipe_shader_state *state); |
| #endif |
| |
| |
| /******************************************************************************** |
| * Helpers for vs implementations that don't do their own fetch/emit variants. |
| * Means these can be shared between shaders. |
| */ |
| struct translate; |
| struct translate_key; |
| |
| struct translate *draw_vs_get_fetch( struct draw_context *draw, |
| struct translate_key *key ); |
| |
| |
| struct translate *draw_vs_get_emit( struct draw_context *draw, |
| struct translate_key *key ); |
| |
| struct draw_vs_variant * |
| draw_vs_create_variant_generic( struct draw_vertex_shader *vs, |
| const struct draw_vs_variant_key *key ); |
| |
| |
| |
| static INLINE int draw_vs_variant_keysize( const struct draw_vs_variant_key *key ) |
| { |
| return 2 * sizeof(int) + key->nr_elements * sizeof(struct draw_variant_element); |
| } |
| |
| static INLINE int draw_vs_variant_key_compare( const struct draw_vs_variant_key *a, |
| const struct draw_vs_variant_key *b ) |
| { |
| int keysize = draw_vs_variant_keysize(a); |
| return memcmp(a, b, keysize); |
| } |
| |
| |
| #define MAX_TGSI_VERTICES 4 |
| |
| |
| |
| #endif |