1/* 2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> 3 * Joakim Sindholt <opensource@zhasha.com> 4 * Copyright 2009 Marek Olšák <maraeo@gmail.com> 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * on the rights to use, copy, modify, merge, publish, distribute, sub 10 * license, and/or sell copies of the Software, and to permit persons to whom 11 * the Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the next 14 * paragraph) shall be included in all copies or substantial portions of the 15 * Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 23 * USE OR OTHER DEALINGS IN THE SOFTWARE. */ 24 25#ifndef R300_FS_H 26#define R300_FS_H 27 28#include "pipe/p_state.h" 29#include "tgsi/tgsi_scan.h" 30#include "compiler/radeon_code.h" 31#include "r300_shader_semantics.h" 32 33struct r300_fragment_shader_code { 34 struct rX00_fragment_program_code code; 35 struct tgsi_shader_info info; 36 struct r300_shader_semantics inputs; 37 38 /* Whether the shader was replaced by a dummy one due to a shader 39 * compilation failure. */ 40 boolean dummy; 41 42 /* Numbers of constants for each type. */ 43 unsigned externals_count; 44 unsigned immediates_count; 45 unsigned rc_state_count; 46 47 /* Registers for fragment depth output setup. */ 48 uint32_t fg_depth_src; /* R300_FG_DEPTH_SRC: 0x4bd8 */ 49 uint32_t us_out_w; /* R300_US_W_FMT: 0x46b4 */ 50 51 struct r300_fragment_program_external_state compare_state; 52 53 unsigned cb_code_size; 54 uint32_t *cb_code; 55 56 struct r300_fragment_shader_code* next; 57 58 boolean write_all; 59 60}; 61 62struct r300_fragment_shader { 63 /* Parent class */ 64 struct pipe_shader_state state; 65 66 /* Currently-bound fragment shader. */ 67 struct r300_fragment_shader_code* shader; 68 69 /* List of the same shaders compiled with different texture-compare 70 * states. */ 71 struct r300_fragment_shader_code* first; 72}; 73 74void r300_shader_read_fs_inputs(struct tgsi_shader_info* info, 75 struct r300_shader_semantics* fs_inputs); 76 77/* Return TRUE if the shader was switched and should be re-emitted. */ 78boolean r300_pick_fragment_shader(struct r300_context* r300); 79 80static INLINE boolean r300_fragment_shader_writes_depth(struct r300_fragment_shader *fs) 81{ 82 if (!fs) 83 return FALSE; 84 return (fs->shader->code.writes_depth) ? TRUE : FALSE; 85} 86 87static INLINE boolean r300_fragment_shader_writes_all(struct r300_fragment_shader *fs) 88{ 89 if (!fs) 90 return FALSE; 91 return (fs->shader->write_all) ? TRUE : FALSE; 92} 93#endif /* R300_FS_H */ 94