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Member "mesa-20.1.8/src/gallium/drivers/r300/r300_fs.h" (16 Sep 2020, 3218 Bytes) of package /linux/misc/mesa-20.1.8.tar.xz:


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    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 
   33 struct 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 
   62 struct 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 
   74 void 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. */
   78 boolean r300_pick_fragment_shader(struct r300_context* r300);
   79 
   80 static 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 
   87 static 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 */