| /********************************************************** |
| * Copyright 2008-2009 VMware, Inc. 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, sublicense, 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 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 |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * 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. |
| * |
| **********************************************************/ |
| |
| #ifndef SVGA_TGSI_H |
| #define SVGA_TGSI_H |
| |
| #include "pipe/p_state.h" |
| |
| #include "svga_hw_reg.h" |
| |
| |
| /** |
| * We use a 32-bit mask to keep track of the generic indexes. |
| */ |
| #define MAX_GENERIC_VARYING 32 |
| |
| |
| struct svga_fragment_shader; |
| struct svga_vertex_shader; |
| struct svga_shader; |
| struct tgsi_shader_info; |
| struct tgsi_token; |
| |
| |
| struct svga_vs_compile_key |
| { |
| unsigned fs_generic_inputs; |
| unsigned need_prescale:1; |
| unsigned allow_psiz:1; |
| }; |
| |
| struct svga_fs_compile_key |
| { |
| unsigned light_twoside:1; |
| unsigned front_ccw:1; |
| unsigned white_fragments:1; |
| unsigned num_textures:8; |
| unsigned num_unnormalized_coords:8; |
| unsigned sprite_origin_lower_left:1; |
| struct { |
| unsigned compare_mode:1; |
| unsigned compare_func:3; |
| unsigned unnormalized:1; |
| unsigned width_height_idx:7; |
| unsigned texture_target:8; |
| unsigned sprite_texgen:1; |
| unsigned swizzle_r:3; |
| unsigned swizzle_g:3; |
| unsigned swizzle_b:3; |
| unsigned swizzle_a:3; |
| } tex[PIPE_MAX_SAMPLERS]; |
| }; |
| |
| struct svga_compile_key { |
| struct svga_vs_compile_key vkey; |
| struct svga_fs_compile_key fkey; |
| int8_t generic_remap_table[MAX_GENERIC_VARYING]; |
| }; |
| |
| |
| /** |
| * A single TGSI shader may be compiled into different variants of |
| * SVGA3D shaders depending on the compile key. Each user shader |
| * will have a linked list of these results. |
| */ |
| struct svga_shader_result |
| { |
| const struct svga_shader *shader; |
| |
| /* Parameters used to generate this compilation result: |
| */ |
| struct svga_compile_key key; |
| |
| /* Compiled shader tokens: |
| */ |
| const unsigned *tokens; |
| unsigned nr_tokens; |
| |
| /** Per-context shader identifier used with SVGA_3D_CMD_SHADER_DEFINE, |
| * SVGA_3D_CMD_SET_SHADER and SVGA_3D_CMD_SHADER_DESTROY. |
| */ |
| unsigned id; |
| |
| /* Next compilation result: |
| */ |
| struct svga_shader_result *next; |
| }; |
| |
| |
| /* TGSI doesn't provide use with VS input semantics (they're actually |
| * pretty meaningless), so we just generate some plausible ones here. |
| * This is called both from within the TGSI translator and when |
| * building vdecls to ensure they match up. |
| * |
| * The real use of this information is matching vertex elements to |
| * fragment shader inputs in the case where vertex shader is disabled. |
| */ |
| static INLINE void svga_generate_vdecl_semantics( unsigned idx, |
| unsigned *usage, |
| unsigned *usage_index ) |
| { |
| if (idx == 0) { |
| *usage = SVGA3D_DECLUSAGE_POSITION; |
| *usage_index = 0; |
| } |
| else { |
| *usage = SVGA3D_DECLUSAGE_TEXCOORD; |
| *usage_index = idx - 1; |
| } |
| } |
| |
| |
| |
| static INLINE unsigned svga_vs_key_size( const struct svga_vs_compile_key *key ) |
| { |
| return sizeof *key; |
| } |
| |
| static INLINE unsigned svga_fs_key_size( const struct svga_fs_compile_key *key ) |
| { |
| return (const char *)&key->tex[key->num_textures] - (const char *)key; |
| } |
| |
| struct svga_shader_result * |
| svga_translate_fragment_program( const struct svga_fragment_shader *fs, |
| const struct svga_fs_compile_key *fkey ); |
| |
| struct svga_shader_result * |
| svga_translate_vertex_program( const struct svga_vertex_shader *fs, |
| const struct svga_vs_compile_key *vkey ); |
| |
| |
| void svga_destroy_shader_result( struct svga_shader_result *result ); |
| |
| unsigned |
| svga_get_generic_inputs_mask(const struct tgsi_shader_info *info); |
| |
| unsigned |
| svga_get_generic_outputs_mask(const struct tgsi_shader_info *info); |
| |
| void |
| svga_remap_generics(unsigned generics_mask, |
| int8_t remap_table[MAX_GENERIC_VARYING]); |
| |
| int |
| svga_remap_generic_index(int8_t remap_table[MAX_GENERIC_VARYING], |
| int generic_index); |
| |
| #endif |